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* JavaScript MD5\n * https://github.com/blueimp/JavaScript-MD5\n *\n * Copyright 2011, Sebastian Tschan\n * https://blueimp.net\n *\n * Licensed under the MIT license:\n * https://opensource.org/licenses/MIT\n *\n * Based on\n * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message\n * Digest Algorithm, as defined in RFC 1321.\n * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009\n * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet\n * Distributed under the BSD License\n * See http://pajhome.org.uk/crypt/md5 for more info.\n */\n\n/*\n* Add integers, wrapping at 2^32. This uses 16-bit operations internally\n* to work around bugs in some JS interpreters.\n*/\nfunction safeAdd(x, y) {\n  var lsw = (x & 0xffff) + (y & 0xffff);\n  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);\n  return (msw << 16) | (lsw & 0xffff);\n}\n\n/*\n* Bitwise rotate a 32-bit number to the left.\n*/\nfunction bitRotateLeft(num, cnt) {\n  return (num << cnt) | (num >>> (32 - cnt));\n}\n\n/*\n* These functions implement the four basic operations the algorithm uses.\n*/\nfunction md5cmn(q, a, b, x, s, t) {\n  return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);\n}\nfunction md5ff(a, b, c, d, x, s, t) {\n  return md5cmn((b & c) | (~b & d), a, b, x, s, t);\n}\nfunction md5gg(a, b, c, d, x, s, t) {\n  return md5cmn((b & d) | (c & ~d), a, b, x, s, t);\n}\nfunction md5hh(a, b, c, d, x, s, t) {\n  return md5cmn(b ^ c ^ d, a, b, x, s, t);\n}\nfunction md5ii(a, b, c, d, x, s, t) {\n  return md5cmn(c ^ (b | ~d), a, b, x, s, t);\n}\n\n/*\n* Calculate the MD5 of an array of little-endian words, and a bit length.\n*/\nfunction binlMD5(x, len) {\n  /* append padding */\n  x[len >> 5] |= 0x80 << (len % 32);\n  x[(((len + 64) >>> 9) << 4) + 14] = len;\n\n  var i;\n  var olda;\n  var oldb;\n  var oldc;\n  var oldd;\n  var a = 1732584193;\n  var b = -271733879;\n  var c = -1732584194;\n  var d = 271733878;\n\n  for (i = 0; i < x.length; i += 16) {\n    olda = a;\n    oldb = b;\n    oldc = c;\n    oldd = d;\n\n    a = md5ff(a, b, c, d, x[i], 7, -680876936);\n    d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);\n    c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);\n    b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);\n    a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);\n    d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);\n    c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);\n    b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);\n    a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);\n    d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);\n    c = md5ff(c, d, a, b, x[i + 10], 17, -42063);\n    b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);\n    a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);\n    d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);\n    c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);\n    b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);\n\n    a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);\n    d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);\n    c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);\n    b = md5gg(b, c, d, a, x[i], 20, -373897302);\n    a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);\n    d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);\n    c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);\n    b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);\n    a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);\n    d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);\n    c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);\n    b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);\n    a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);\n    d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);\n    c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);\n    b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);\n\n    a = md5hh(a, b, c, d, x[i + 5], 4, -378558);\n    d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);\n    c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);\n    b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);\n    a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);\n    d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);\n    c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);\n    b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);\n    a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);\n    d = md5hh(d, a, b, c, x[i], 11, -358537222);\n    c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);\n    b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);\n    a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);\n    d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);\n    c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);\n    b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);\n\n    a = md5ii(a, b, c, d, x[i], 6, -198630844);\n    d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);\n    c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);\n    b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);\n    a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);\n    d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);\n    c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);\n    b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);\n    a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);\n    d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);\n    c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);\n    b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);\n    a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);\n    d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);\n    c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);\n    b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);\n\n    a = safeAdd(a, olda);\n    b = safeAdd(b, oldb);\n    c = safeAdd(c, oldc);\n    d = safeAdd(d, oldd);\n  }\n  return [a, b, c, d];\n}\n\n/*\n* Convert an array of little-endian words to a string\n*/\nfunction binl2rstr(input) {\n  var i;\n  var output = '';\n  var length32 = input.length * 32;\n  for (i = 0; i < length32; i += 8) {\n    output += String.fromCharCode((input[i >> 5] >>> (i % 32)) & 0xff);\n  }\n  return output;\n}\n\n/*\n* Convert a raw string to an array of little-endian words\n* Characters >255 have their high-byte silently ignored.\n*/\nfunction rstr2binl(input) {\n  var i;\n  var output = [];\n  output[(input.length >> 2) - 1] = undefined;\n  for (i = 0; i < output.length; i += 1) {\n    output[i] = 0;\n  }\n  var length8 = input.length * 8;\n  for (i = 0; i < length8; i += 8) {\n    output[i >> 5] |= (input.charCodeAt(i / 8) & 0xff) << (i % 32);\n  }\n  return output;\n}\n\n/*\n* Calculate the MD5 of a raw string\n*/\nfunction rstrMD5(s) {\n  return binl2rstr(binlMD5(rstr2binl(s), s.length * 8));\n}\n\n/*\n* Calculate the HMAC-MD5, of a key and some data (raw strings)\n*/\nfunction rstrHMACMD5(key, data) {\n  var i;\n  var bkey = rstr2binl(key);\n  var ipad = [];\n  var opad = [];\n  var hash;\n  ipad[15] = opad[15] = undefined;\n  if (bkey.length > 16) {\n    bkey = binlMD5(bkey, key.length * 8);\n  }\n  for (i = 0; i < 16; i += 1) {\n    ipad[i] = bkey[i] ^ 0x36363636;\n    opad[i] = bkey[i] ^ 0x5c5c5c5c;\n  }\n  hash = binlMD5(ipad.concat(rstr2binl(data)), 512 + data.length * 8);\n  return binl2rstr(binlMD5(opad.concat(hash), 512 + 128));\n}\n\n/*\n* Convert a raw string to a hex string\n*/\nfunction rstr2hex(input) {\n  var hexTab = '0123456789abcdef';\n  var output = '';\n  var x;\n  var i;\n  for (i = 0; i < input.length; i += 1) {\n    x = input.charCodeAt(i);\n    output += hexTab.charAt((x >>> 4) & 0x0f) + hexTab.charAt(x & 0x0f);\n  }\n  return output;\n}\n\n/*\n* Encode a string as utf-8\n*/\nfunction str2rstrUTF8(input) {\n  return unescape(encodeURIComponent(input));\n}\n\n/*\n* Take string arguments and return either raw or hex encoded strings\n*/\nfunction rawMD5(s) {\n  return rstrMD5(str2rstrUTF8(s));\n}\nfunction hexMD5(s) {\n  return rstr2hex(rawMD5(s));\n}\nfunction rawHMACMD5(k, d) {\n  return rstrHMACMD5(str2rstrUTF8(k), str2rstrUTF8(d));\n}\nfunction hexHMACMD5(k, d) {\n  return rstr2hex(rawHMACMD5(k, d));\n}\n\nfunction md5(string, key, raw) {\n  if (!key) {\n    if (!raw) {\n      return hexMD5(string);\n    }\n    return rawMD5(string);\n  }\n  if (!raw) {\n    return hexHMACMD5(key, string);\n  }\n  return rawHMACMD5(key, string);\n}\n\nmodule.exports = md5;\n","var utils = require('../../src/utils');\n\n/*\n TraceKit - Cross brower stack traces\n\n This was originally forked from github.com/occ/TraceKit, but has since been\n largely re-written and is now maintained as part of raven-js.  Tests for\n this are in test/vendor.\n\n MIT license\n*/\n\nvar TraceKit = {\n  collectWindowErrors: true,\n  debug: false\n};\n\n// This is to be defensive in environments where window does not exist (see https://github.com/getsentry/raven-js/pull/785)\nvar _window =\n  typeof window !== 'undefined'\n    ? window\n    : typeof global !== 'undefined'\n    ? global\n    : typeof self !== 'undefined'\n    ? self\n    : {};\n\n// global reference to slice\nvar _slice = [].slice;\nvar UNKNOWN_FUNCTION = '?';\n\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Error_types\nvar ERROR_TYPES_RE = /^(?:[Uu]ncaught (?:exception: )?)?(?:((?:Eval|Internal|Range|Reference|Syntax|Type|URI|)Error): )?(.*)$/;\n\nfunction getLocationHref() {\n  if (typeof document === 'undefined' || document.location == null) return '';\n  return document.location.href;\n}\n\nfunction getLocationOrigin() {\n  if (typeof document === 'undefined' || document.location == null) return '';\n\n  // Oh dear IE10...\n  if (!document.location.origin) {\n    return (\n      document.location.protocol +\n      '//' +\n      document.location.hostname +\n      (document.location.port ? ':' + document.location.port : '')\n    );\n  }\n\n  return document.location.origin;\n}\n\n/**\n * TraceKit.report: cross-browser processing of unhandled exceptions\n *\n * Syntax:\n *   TraceKit.report.subscribe(function(stackInfo) { ... })\n *   TraceKit.report.unsubscribe(function(stackInfo) { ... })\n *   TraceKit.report(exception)\n *   try { ...code... } catch(ex) { TraceKit.report(ex); }\n *\n * Supports:\n *   - Firefox: full stack trace with line numbers, plus column number\n *              on top frame; column number is not guaranteed\n *   - Opera:   full stack trace with line and column numbers\n *   - Chrome:  full stack trace with line and column numbers\n *   - Safari:  line and column number for the top frame only; some frames\n *              may be missing, and column number is not guaranteed\n *   - IE:      line and column number for the top frame only; some frames\n *              may be missing, and column number is not guaranteed\n *\n * In theory, TraceKit should work on all of the following versions:\n *   - IE5.5+ (only 8.0 tested)\n *   - Firefox 0.9+ (only 3.5+ tested)\n *   - Opera 7+ (only 10.50 tested; versions 9 and earlier may require\n *     Exceptions Have Stacktrace to be enabled in opera:config)\n *   - Safari 3+ (only 4+ tested)\n *   - Chrome 1+ (only 5+ tested)\n *   - Konqueror 3.5+ (untested)\n *\n * Requires TraceKit.computeStackTrace.\n *\n * Tries to catch all unhandled exceptions and report them to the\n * subscribed handlers. Please note that TraceKit.report will rethrow the\n * exception. This is REQUIRED in order to get a useful stack trace in IE.\n * If the exception does not reach the top of the browser, you will only\n * get a stack trace from the point where TraceKit.report was called.\n *\n * Handlers receive a stackInfo object as described in the\n * TraceKit.computeStackTrace docs.\n */\nTraceKit.report = (function reportModuleWrapper() {\n  var handlers = [],\n    lastArgs = null,\n    lastException = null,\n    lastExceptionStack = null;\n\n  /**\n   * Add a crash handler.\n   * @param {Function} handler\n   */\n  function subscribe(handler) {\n    installGlobalHandler();\n    handlers.push(handler);\n  }\n\n  /**\n   * Remove a crash handler.\n   * @param {Function} handler\n   */\n  function unsubscribe(handler) {\n    for (var i = handlers.length - 1; i >= 0; --i) {\n      if (handlers[i] === handler) {\n        handlers.splice(i, 1);\n      }\n    }\n  }\n\n  /**\n   * Remove all crash handlers.\n   */\n  function unsubscribeAll() {\n    uninstallGlobalHandler();\n    handlers = [];\n  }\n\n  /**\n   * Dispatch stack information to all handlers.\n   * @param {Object.<string, *>} stack\n   */\n  function notifyHandlers(stack, isWindowError) {\n    var exception = null;\n    if (isWindowError && !TraceKit.collectWindowErrors) {\n      return;\n    }\n    for (var i in handlers) {\n      if (handlers.hasOwnProperty(i)) {\n        try {\n          handlers[i].apply(null, [stack].concat(_slice.call(arguments, 2)));\n        } catch (inner) {\n          exception = inner;\n        }\n      }\n    }\n\n    if (exception) {\n      throw exception;\n    }\n  }\n\n  var _oldOnerrorHandler, _onErrorHandlerInstalled;\n\n  /**\n   * Ensures all global unhandled exceptions are recorded.\n   * Supported by Gecko and IE.\n   * @param {string} msg Error message.\n   * @param {string} url URL of script that generated the exception.\n   * @param {(number|string)} lineNo The line number at which the error\n   * occurred.\n   * @param {?(number|string)} colNo The column number at which the error\n   * occurred.\n   * @param {?Error} ex The actual Error object.\n   */\n  function traceKitWindowOnError(msg, url, lineNo, colNo, ex) {\n    var stack = null;\n    // If 'ex' is ErrorEvent, get real Error from inside\n    var exception = utils.isErrorEvent(ex) ? ex.error : ex;\n    // If 'msg' is ErrorEvent, get real message from inside\n    var message = utils.isErrorEvent(msg) ? msg.message : msg;\n\n    if (lastExceptionStack) {\n      TraceKit.computeStackTrace.augmentStackTraceWithInitialElement(\n        lastExceptionStack,\n        url,\n        lineNo,\n        message\n      );\n      processLastException();\n    } else if (exception && utils.isError(exception)) {\n      // non-string `exception` arg; attempt to extract stack trace\n\n      // New chrome and blink send along a real error object\n      // Let's just report that like a normal error.\n      // See: https://mikewest.org/2013/08/debugging-runtime-errors-with-window-onerror\n      stack = TraceKit.computeStackTrace(exception);\n      notifyHandlers(stack, true);\n    } else {\n      var location = {\n        url: url,\n        line: lineNo,\n        column: colNo\n      };\n\n      var name = undefined;\n      var groups;\n\n      if ({}.toString.call(message) === '[object String]') {\n        var groups = message.match(ERROR_TYPES_RE);\n        if (groups) {\n          name = groups[1];\n          message = groups[2];\n        }\n      }\n\n      location.func = UNKNOWN_FUNCTION;\n\n      stack = {\n        name: name,\n        message: message,\n        url: getLocationHref(),\n        stack: [location]\n      };\n      notifyHandlers(stack, true);\n    }\n\n    if (_oldOnerrorHandler) {\n      return _oldOnerrorHandler.apply(this, arguments);\n    }\n\n    return false;\n  }\n\n  function installGlobalHandler() {\n    if (_onErrorHandlerInstalled) {\n      return;\n    }\n    _oldOnerrorHandler = _window.onerror;\n    _window.onerror = traceKitWindowOnError;\n    _onErrorHandlerInstalled = true;\n  }\n\n  function uninstallGlobalHandler() {\n    if (!_onErrorHandlerInstalled) {\n      return;\n    }\n    _window.onerror = _oldOnerrorHandler;\n    _onErrorHandlerInstalled = false;\n    _oldOnerrorHandler = undefined;\n  }\n\n  function processLastException() {\n    var _lastExceptionStack = lastExceptionStack,\n      _lastArgs = lastArgs;\n    lastArgs = null;\n    lastExceptionStack = null;\n    lastException = null;\n    notifyHandlers.apply(null, [_lastExceptionStack, false].concat(_lastArgs));\n  }\n\n  /**\n   * Reports an unhandled Error to TraceKit.\n   * @param {Error} ex\n   * @param {?boolean} rethrow If false, do not re-throw the exception.\n   * Only used for window.onerror to not cause an infinite loop of\n   * rethrowing.\n   */\n  function report(ex, rethrow) {\n    var args = _slice.call(arguments, 1);\n    if (lastExceptionStack) {\n      if (lastException === ex) {\n        return; // already caught by an inner catch block, ignore\n      } else {\n        processLastException();\n      }\n    }\n\n    var stack = TraceKit.computeStackTrace(ex);\n    lastExceptionStack = stack;\n    lastException = ex;\n    lastArgs = args;\n\n    // If the stack trace is incomplete, wait for 2 seconds for\n    // slow slow IE to see if onerror occurs or not before reporting\n    // this exception; otherwise, we will end up with an incomplete\n    // stack trace\n    setTimeout(\n      function() {\n        if (lastException === ex) {\n          processLastException();\n        }\n      },\n      stack.incomplete ? 2000 : 0\n    );\n\n    if (rethrow !== false) {\n      throw ex; // re-throw to propagate to the top level (and cause window.onerror)\n    }\n  }\n\n  report.subscribe = subscribe;\n  report.unsubscribe = unsubscribe;\n  report.uninstall = unsubscribeAll;\n  return report;\n})();\n\n/**\n * TraceKit.computeStackTrace: cross-browser stack traces in JavaScript\n *\n * Syntax:\n *   s = TraceKit.computeStackTrace(exception) // consider using TraceKit.report instead (see below)\n * Returns:\n *   s.name              - exception name\n *   s.message           - exception message\n *   s.stack[i].url      - JavaScript or HTML file URL\n *   s.stack[i].func     - function name, or empty for anonymous functions (if guessing did not work)\n *   s.stack[i].args     - arguments passed to the function, if known\n *   s.stack[i].line     - line number, if known\n *   s.stack[i].column   - column number, if known\n *\n * Supports:\n *   - Firefox:  full stack trace with line numbers and unreliable column\n *               number on top frame\n *   - Opera 10: full stack trace with line and column numbers\n *   - Opera 9-: full stack trace with line numbers\n *   - Chrome:   full stack trace with line and column numbers\n *   - Safari:   line and column number for the topmost stacktrace element\n *               only\n *   - IE:       no line numbers whatsoever\n *\n * Tries to guess names of anonymous functions by looking for assignments\n * in the source code. In IE and Safari, we have to guess source file names\n * by searching for function bodies inside all page scripts. This will not\n * work for scripts that are loaded cross-domain.\n * Here be dragons: some function names may be guessed incorrectly, and\n * duplicate functions may be mismatched.\n *\n * TraceKit.computeStackTrace should only be used for tracing purposes.\n * Logging of unhandled exceptions should be done with TraceKit.report,\n * which builds on top of TraceKit.computeStackTrace and provides better\n * IE support by utilizing the window.onerror event to retrieve information\n * about the top of the stack.\n *\n * Note: In IE and Safari, no stack trace is recorded on the Error object,\n * so computeStackTrace instead walks its *own* chain of callers.\n * This means that:\n *  * in Safari, some methods may be missing from the stack trace;\n *  * in IE, the topmost function in the stack trace will always be the\n *    caller of computeStackTrace.\n *\n * This is okay for tracing (because you are likely to be calling\n * computeStackTrace from the function you want to be the topmost element\n * of the stack trace anyway), but not okay for logging unhandled\n * exceptions (because your catch block will likely be far away from the\n * inner function that actually caused the exception).\n *\n */\nTraceKit.computeStackTrace = (function computeStackTraceWrapper() {\n  // Contents of Exception in various browsers.\n  //\n  // SAFARI:\n  // ex.message = Can't find variable: qq\n  // ex.line = 59\n  // ex.sourceId = 580238192\n  // ex.sourceURL = http://...\n  // ex.expressionBeginOffset = 96\n  // ex.expressionCaretOffset = 98\n  // ex.expressionEndOffset = 98\n  // ex.name = ReferenceError\n  //\n  // FIREFOX:\n  // ex.message = qq is not defined\n  // ex.fileName = http://...\n  // ex.lineNumber = 59\n  // ex.columnNumber = 69\n  // ex.stack = ...stack trace... (see the example below)\n  // ex.name = ReferenceError\n  //\n  // CHROME:\n  // ex.message = qq is not defined\n  // ex.name = ReferenceError\n  // ex.type = not_defined\n  // ex.arguments = ['aa']\n  // ex.stack = ...stack trace...\n  //\n  // INTERNET EXPLORER:\n  // ex.message = ...\n  // ex.name = ReferenceError\n  //\n  // OPERA:\n  // ex.message = ...message... (see the example below)\n  // ex.name = ReferenceError\n  // ex.opera#sourceloc = 11  (pretty much useless, duplicates the info in ex.message)\n  // ex.stacktrace = n/a; see 'opera:config#UserPrefs|Exceptions Have Stacktrace'\n\n  /**\n   * Computes stack trace information from the stack property.\n   * Chrome and Gecko use this property.\n   * @param {Error} ex\n   * @return {?Object.<string, *>} Stack trace information.\n   */\n  function computeStackTraceFromStackProp(ex) {\n    if (typeof ex.stack === 'undefined' || !ex.stack) return;\n\n    var chrome = /^\\s*at (?:(.*?) ?\\()?((?:file|https?|blob|chrome-extension|native|eval|webpack|<anonymous>|[a-z]:|\\/).*?)(?::(\\d+))?(?::(\\d+))?\\)?\\s*$/i;\n    var winjs = /^\\s*at (?:((?:\\[object object\\])?.+) )?\\(?((?:file|ms-appx(?:-web)|https?|webpack|blob):.*?):(\\d+)(?::(\\d+))?\\)?\\s*$/i;\n    // NOTE: blob urls are now supposed to always have an origin, therefore it's format\n    // which is `blob:http://url/path/with-some-uuid`, is matched by `blob.*?:\\/` as well\n    var gecko = /^\\s*(.*?)(?:\\((.*?)\\))?(?:^|@)((?:file|https?|blob|chrome|webpack|resource|moz-extension).*?:\\/.*?|\\[native code\\]|[^@]*(?:bundle|\\d+\\.js))(?::(\\d+))?(?::(\\d+))?\\s*$/i;\n    // Used to additionally parse URL/line/column from eval frames\n    var geckoEval = /(\\S+) line (\\d+)(?: > eval line \\d+)* > eval/i;\n    var chromeEval = /\\((\\S*)(?::(\\d+))(?::(\\d+))\\)/;\n    var lines = ex.stack.split('\\n');\n    var stack = [];\n    var submatch;\n    var parts;\n    var element;\n    var reference = /^(.*) is undefined$/.exec(ex.message);\n\n    for (var i = 0, j = lines.length; i < j; ++i) {\n      if ((parts = chrome.exec(lines[i]))) {\n        var isNative = parts[2] && parts[2].indexOf('native') === 0; // start of line\n        var isEval = parts[2] && parts[2].indexOf('eval') === 0; // start of line\n        if (isEval && (submatch = chromeEval.exec(parts[2]))) {\n          // throw out eval line/column and use top-most line/column number\n          parts[2] = submatch[1]; // url\n          parts[3] = submatch[2]; // line\n          parts[4] = submatch[3]; // column\n        }\n        element = {\n          url: !isNative ? parts[2] : null,\n          func: parts[1] || UNKNOWN_FUNCTION,\n          args: isNative ? [parts[2]] : [],\n          line: parts[3] ? +parts[3] : null,\n          column: parts[4] ? +parts[4] : null\n        };\n      } else if ((parts = winjs.exec(lines[i]))) {\n        element = {\n          url: parts[2],\n          func: parts[1] || UNKNOWN_FUNCTION,\n          args: [],\n          line: +parts[3],\n          column: parts[4] ? +parts[4] : null\n        };\n      } else if ((parts = gecko.exec(lines[i]))) {\n        var isEval = parts[3] && parts[3].indexOf(' > eval') > -1;\n        if (isEval && (submatch = geckoEval.exec(parts[3]))) {\n          // throw out eval line/column and use top-most line number\n          parts[3] = submatch[1];\n          parts[4] = submatch[2];\n          parts[5] = null; // no column when eval\n        } else if (i === 0 && !parts[5] && typeof ex.columnNumber !== 'undefined') {\n          // FireFox uses this awesome columnNumber property for its top frame\n          // Also note, Firefox's column number is 0-based and everything else expects 1-based,\n          // so adding 1\n          // NOTE: this hack doesn't work if top-most frame is eval\n          stack[0].column = ex.columnNumber + 1;\n        }\n        element = {\n          url: parts[3],\n          func: parts[1] || UNKNOWN_FUNCTION,\n          args: parts[2] ? parts[2].split(',') : [],\n          line: parts[4] ? +parts[4] : null,\n          column: parts[5] ? +parts[5] : null\n        };\n      } else {\n        continue;\n      }\n\n      if (!element.func && element.line) {\n        element.func = UNKNOWN_FUNCTION;\n      }\n\n      if (element.url && element.url.substr(0, 5) === 'blob:') {\n        // Special case for handling JavaScript loaded into a blob.\n        // We use a synchronous AJAX request here as a blob is already in\n        // memory - it's not making a network request.  This will generate a warning\n        // in the browser console, but there has already been an error so that's not\n        // that much of an issue.\n        var xhr = new XMLHttpRequest();\n        xhr.open('GET', element.url, false);\n        xhr.send(null);\n\n        // If we failed to download the source, skip this patch\n        if (xhr.status === 200) {\n          var source = xhr.responseText || '';\n\n          // We trim the source down to the last 300 characters as sourceMappingURL is always at the end of the file.\n          // Why 300? To be in line with: https://github.com/getsentry/sentry/blob/4af29e8f2350e20c28a6933354e4f42437b4ba42/src/sentry/lang/javascript/processor.py#L164-L175\n          source = source.slice(-300);\n\n          // Now we dig out the source map URL\n          var sourceMaps = source.match(/\\/\\/# sourceMappingURL=(.*)$/);\n\n          // If we don't find a source map comment or we find more than one, continue on to the next element.\n          if (sourceMaps) {\n            var sourceMapAddress = sourceMaps[1];\n\n            // Now we check to see if it's a relative URL.\n            // If it is, convert it to an absolute one.\n            if (sourceMapAddress.charAt(0) === '~') {\n              sourceMapAddress = getLocationOrigin() + sourceMapAddress.slice(1);\n            }\n\n            // Now we strip the '.map' off of the end of the URL and update the\n            // element so that Sentry can match the map to the blob.\n            element.url = sourceMapAddress.slice(0, -4);\n          }\n        }\n      }\n\n      stack.push(element);\n    }\n\n    if (!stack.length) {\n      return null;\n    }\n\n    return {\n      name: ex.name,\n      message: ex.message,\n      url: getLocationHref(),\n      stack: stack\n    };\n  }\n\n  /**\n   * Adds information about the first frame to incomplete stack traces.\n   * Safari and IE require this to get complete data on the first frame.\n   * @param {Object.<string, *>} stackInfo Stack trace information from\n   * one of the compute* methods.\n   * @param {string} url The URL of the script that caused an error.\n   * @param {(number|string)} lineNo The line number of the script that\n   * caused an error.\n   * @param {string=} message The error generated by the browser, which\n   * hopefully contains the name of the object that caused the error.\n   * @return {boolean} Whether or not the stack information was\n   * augmented.\n   */\n  function augmentStackTraceWithInitialElement(stackInfo, url, lineNo, message) {\n    var initial = {\n      url: url,\n      line: lineNo\n    };\n\n    if (initial.url && initial.line) {\n      stackInfo.incomplete = false;\n\n      if (!initial.func) {\n        initial.func = UNKNOWN_FUNCTION;\n      }\n\n      if (stackInfo.stack.length > 0) {\n        if (stackInfo.stack[0].url === initial.url) {\n          if (stackInfo.stack[0].line === initial.line) {\n            return false; // already in stack trace\n          } else if (\n            !stackInfo.stack[0].line &&\n            stackInfo.stack[0].func === initial.func\n          ) {\n            stackInfo.stack[0].line = initial.line;\n            return false;\n          }\n        }\n      }\n\n      stackInfo.stack.unshift(initial);\n      stackInfo.partial = true;\n      return true;\n    } else {\n      stackInfo.incomplete = true;\n    }\n\n    return false;\n  }\n\n  /**\n   * Computes stack trace information by walking the arguments.caller\n   * chain at the time the exception occurred. This will cause earlier\n   * frames to be missed but is the only way to get any stack trace in\n   * Safari and IE. The top frame is restored by\n   * {@link augmentStackTraceWithInitialElement}.\n   * @param {Error} ex\n   * @return {?Object.<string, *>} Stack trace information.\n   */\n  function computeStackTraceByWalkingCallerChain(ex, depth) {\n    var functionName = /function\\s+([_$a-zA-Z\\xA0-\\uFFFF][_$a-zA-Z0-9\\xA0-\\uFFFF]*)?\\s*\\(/i,\n      stack = [],\n      funcs = {},\n      recursion = false,\n      parts,\n      item,\n      source;\n\n    for (\n      var curr = computeStackTraceByWalkingCallerChain.caller;\n      curr && !recursion;\n      curr = curr.caller\n    ) {\n      if (curr === computeStackTrace || curr === TraceKit.report) {\n        // console.log('skipping internal function');\n        continue;\n      }\n\n      item = {\n        url: null,\n        func: UNKNOWN_FUNCTION,\n        line: null,\n        column: null\n      };\n\n      if (curr.name) {\n        item.func = curr.name;\n      } else if ((parts = functionName.exec(curr.toString()))) {\n        item.func = parts[1];\n      }\n\n      if (typeof item.func === 'undefined') {\n        try {\n          item.func = parts.input.substring(0, parts.input.indexOf('{'));\n        } catch (e) {}\n      }\n\n      if (funcs['' + curr]) {\n        recursion = true;\n      } else {\n        funcs['' + curr] = true;\n      }\n\n      stack.push(item);\n    }\n\n    if (depth) {\n      // console.log('depth is ' + depth);\n      // console.log('stack is ' + stack.length);\n      stack.splice(0, depth);\n    }\n\n    var result = {\n      name: ex.name,\n      message: ex.message,\n      url: getLocationHref(),\n      stack: stack\n    };\n    augmentStackTraceWithInitialElement(\n      result,\n      ex.sourceURL || ex.fileName,\n      ex.line || ex.lineNumber,\n      ex.message || ex.description\n    );\n    return result;\n  }\n\n  /**\n   * Computes a stack trace for an exception.\n   * @param {Error} ex\n   * @param {(string|number)=} depth\n   */\n  function computeStackTrace(ex, depth) {\n    var stack = null;\n    depth = depth == null ? 0 : +depth;\n\n    try {\n      stack = computeStackTraceFromStackProp(ex);\n      if (stack) {\n        return stack;\n      }\n    } catch (e) {\n      if (TraceKit.debug) {\n        throw e;\n      }\n    }\n\n    try {\n      stack = computeStackTraceByWalkingCallerChain(ex, depth + 1);\n      if (stack) {\n        return stack;\n      }\n    } catch (e) {\n      if (TraceKit.debug) {\n        throw e;\n      }\n    }\n    return {\n      name: ex.name,\n      message: ex.message,\n      url: getLocationHref()\n    };\n  }\n\n  computeStackTrace.augmentStackTraceWithInitialElement = augmentStackTraceWithInitialElement;\n  computeStackTrace.computeStackTraceFromStackProp = computeStackTraceFromStackProp;\n\n  return computeStackTrace;\n})();\n\nmodule.exports = TraceKit;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar identity_1 = require(\"./identity\");\nfunction pipe() {\n    var fns = [];\n    for (var _i = 0; _i < arguments.length; _i++) {\n        fns[_i] = arguments[_i];\n    }\n    return pipeFromArray(fns);\n}\nexports.pipe = pipe;\nfunction pipeFromArray(fns) {\n    if (fns.length === 0) {\n        return identity_1.identity;\n    }\n    if (fns.length === 1) {\n        return fns[0];\n    }\n    return function piped(input) {\n        return fns.reduce(function (prev, fn) { return fn(prev); }, input);\n    };\n}\nexports.pipeFromArray = pipeFromArray;\n//# sourceMappingURL=pipe.js.map","var utils = require('./utils');\n\nvar wrapMethod = function(console, level, callback) {\n  var originalConsoleLevel = console[level];\n  var originalConsole = console;\n\n  if (!(level in console)) {\n    return;\n  }\n\n  var sentryLevel = level === 'warn' ? 'warning' : level;\n\n  console[level] = function() {\n    var args = [].slice.call(arguments);\n\n    var msg = utils.safeJoin(args, ' ');\n    var data = {level: sentryLevel, logger: 'console', extra: {arguments: args}};\n\n    if (level === 'assert') {\n      if (args[0] === false) {\n        // Default browsers message\n        msg =\n          'Assertion failed: ' + (utils.safeJoin(args.slice(1), ' ') || 'console.assert');\n        data.extra.arguments = args.slice(1);\n        callback && callback(msg, data);\n      }\n    } else {\n      callback && callback(msg, data);\n    }\n\n    // this fails for some browsers. :(\n    if (originalConsoleLevel) {\n      // IE9 doesn't allow calling apply on console functions directly\n      // See: https://stackoverflow.com/questions/5472938/does-ie9-support-console-log-and-is-it-a-real-function#answer-5473193\n      Function.prototype.apply.call(originalConsoleLevel, originalConsole, args);\n    }\n  };\n};\n\nmodule.exports = {\n  wrapMethod: wrapMethod\n};\n","/*\n json-stringify-safe\n Like JSON.stringify, but doesn't throw on circular references.\n\n Originally forked from https://github.com/isaacs/json-stringify-safe\n version 5.0.1 on 3/8/2017 and modified to handle Errors serialization\n and IE8 compatibility. Tests for this are in test/vendor.\n\n ISC license: https://github.com/isaacs/json-stringify-safe/blob/master/LICENSE\n*/\n\nexports = module.exports = stringify;\nexports.getSerialize = serializer;\n\nfunction indexOf(haystack, needle) {\n  for (var i = 0; i < haystack.length; ++i) {\n    if (haystack[i] === needle) return i;\n  }\n  return -1;\n}\n\nfunction stringify(obj, replacer, spaces, cycleReplacer) {\n  return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces);\n}\n\n// https://github.com/ftlabs/js-abbreviate/blob/fa709e5f139e7770a71827b1893f22418097fbda/index.js#L95-L106\nfunction stringifyError(value) {\n  var err = {\n    // These properties are implemented as magical getters and don't show up in for in\n    stack: value.stack,\n    message: value.message,\n    name: value.name\n  };\n\n  for (var i in value) {\n    if (Object.prototype.hasOwnProperty.call(value, i)) {\n      err[i] = value[i];\n    }\n  }\n\n  return err;\n}\n\nfunction serializer(replacer, cycleReplacer) {\n  var stack = [];\n  var keys = [];\n\n  if (cycleReplacer == null) {\n    cycleReplacer = function(key, value) {\n      if (stack[0] === value) {\n        return '[Circular ~]';\n      }\n      return '[Circular ~.' + keys.slice(0, indexOf(stack, value)).join('.') + ']';\n    };\n  }\n\n  return function(key, value) {\n    if (stack.length > 0) {\n      var thisPos = indexOf(stack, this);\n      ~thisPos ? stack.splice(thisPos + 1) : stack.push(this);\n      ~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key);\n\n      if (~indexOf(stack, value)) {\n        value = cycleReplacer.call(this, key, value);\n      }\n    } else {\n      stack.push(value);\n    }\n\n    return replacer == null\n      ? value instanceof Error ? stringifyError(value) : value\n      : replacer.call(this, key, value);\n  };\n}\n","\"use strict\";\nvar __extends = (this && this.__extends) || (function () {\n    var extendStatics = function (d, b) {\n        extendStatics = Object.setPrototypeOf ||\n            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\n            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\n        return extendStatics(d, b);\n    }\n    return function (d, b) {\n        extendStatics(d, b);\n        function __() { this.constructor = d; }\n        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\n    };\n})();\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar isFunction_1 = require(\"./util/isFunction\");\nvar Observer_1 = require(\"./Observer\");\nvar Subscription_1 = require(\"./Subscription\");\nvar rxSubscriber_1 = require(\"../internal/symbol/rxSubscriber\");\nvar config_1 = require(\"./config\");\nvar hostReportError_1 = require(\"./util/hostReportError\");\nvar Subscriber = (function (_super) {\n    __extends(Subscriber, _super);\n    function Subscriber(destinationOrNext, error, complete) {\n        var _this = _super.call(this) || this;\n        _this.syncErrorValue = null;\n        _this.syncErrorThrown = false;\n        _this.syncErrorThrowable = false;\n        _this.isStopped = false;\n        switch (arguments.length) {\n            case 0:\n                _this.destination = Observer_1.empty;\n                break;\n            case 1:\n                if (!destinationOrNext) {\n                    _this.destination = Observer_1.empty;\n                    break;\n                }\n                if (typeof destinationOrNext === 'object') {\n                    if (destinationOrNext instanceof Subscriber) {\n                        _this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;\n                        _this.destination = destinationOrNext;\n                        destinationOrNext.add(_this);\n                    }\n                    else {\n                        _this.syncErrorThrowable = true;\n                        _this.destination = new SafeSubscriber(_this, destinationOrNext);\n                    }\n                    break;\n                }\n            default:\n                _this.syncErrorThrowable = true;\n                _this.destination = new SafeSubscriber(_this, destinationOrNext, error, complete);\n                break;\n        }\n        return _this;\n    }\n    Subscriber.prototype[rxSubscriber_1.rxSubscriber] = function () { return this; };\n    Subscriber.create = function (next, error, complete) {\n        var subscriber = new Subscriber(next, error, complete);\n        subscriber.syncErrorThrowable = false;\n        return subscriber;\n    };\n    Subscriber.prototype.next = function (value) {\n        if (!this.isStopped) {\n            this._next(value);\n        }\n    };\n    Subscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._error(err);\n        }\n    };\n    Subscriber.prototype.complete = function () {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._complete();\n        }\n    };\n    Subscriber.prototype.unsubscribe = function () {\n        if (this.closed) {\n            return;\n        }\n        this.isStopped = true;\n        _super.prototype.unsubscribe.call(this);\n    };\n    Subscriber.prototype._next = function (value) {\n        this.destination.next(value);\n    };\n    Subscriber.prototype._error = function (err) {\n        this.destination.error(err);\n        this.unsubscribe();\n    };\n    Subscriber.prototype._complete = function () {\n        this.destination.complete();\n        this.unsubscribe();\n    };\n    Subscriber.prototype._unsubscribeAndRecycle = function () {\n        var _parentOrParents = this._parentOrParents;\n        this._parentOrParents = null;\n        this.unsubscribe();\n        this.closed = false;\n        this.isStopped = false;\n        this._parentOrParents = _parentOrParents;\n        return this;\n    };\n    return Subscriber;\n}(Subscription_1.Subscription));\nexports.Subscriber = Subscriber;\nvar SafeSubscriber = (function (_super) {\n    __extends(SafeSubscriber, _super);\n    function SafeSubscriber(_parentSubscriber, observerOrNext, error, complete) {\n        var _this = _super.call(this) || this;\n        _this._parentSubscriber = _parentSubscriber;\n        var next;\n        var context = _this;\n        if (isFunction_1.isFunction(observerOrNext)) {\n            next = observerOrNext;\n        }\n        else if (observerOrNext) {\n            next = observerOrNext.next;\n            error = observerOrNext.error;\n            complete = observerOrNext.complete;\n            if (observerOrNext !== Observer_1.empty) {\n                context = Object.create(observerOrNext);\n                if (isFunction_1.isFunction(context.unsubscribe)) {\n                    _this.add(context.unsubscribe.bind(context));\n                }\n                context.unsubscribe = _this.unsubscribe.bind(_this);\n            }\n        }\n        _this._context = context;\n        _this._next = next;\n        _this._error = error;\n        _this._complete = complete;\n        return _this;\n    }\n    SafeSubscriber.prototype.next = function (value) {\n        if (!this.isStopped && this._next) {\n            var _parentSubscriber = this._parentSubscriber;\n            if (!config_1.config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                this.__tryOrUnsub(this._next, value);\n            }\n            else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.error = function (err) {\n        if (!this.isStopped) {\n            var _parentSubscriber = this._parentSubscriber;\n            var useDeprecatedSynchronousErrorHandling = config_1.config.useDeprecatedSynchronousErrorHandling;\n            if (this._error) {\n                if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(this._error, err);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, this._error, err);\n                    this.unsubscribe();\n                }\n            }\n            else if (!_parentSubscriber.syncErrorThrowable) {\n                this.unsubscribe();\n                if (useDeprecatedSynchronousErrorHandling) {\n                    throw err;\n                }\n                hostReportError_1.hostReportError(err);\n            }\n            else {\n                if (useDeprecatedSynchronousErrorHandling) {\n                    _parentSubscriber.syncErrorValue = err;\n                    _parentSubscriber.syncErrorThrown = true;\n                }\n                else {\n                    hostReportError_1.hostReportError(err);\n                }\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.complete = function () {\n        var _this = this;\n        if (!this.isStopped) {\n            var _parentSubscriber = this._parentSubscriber;\n            if (this._complete) {\n                var wrappedComplete = function () { return _this._complete.call(_this._context); };\n                if (!config_1.config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(wrappedComplete);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, wrappedComplete);\n                    this.unsubscribe();\n                }\n            }\n            else {\n                this.unsubscribe();\n            }\n        }\n    };\n    SafeSubscriber.prototype.__tryOrUnsub = function (fn, value) {\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            this.unsubscribe();\n            if (config_1.config.useDeprecatedSynchronousErrorHandling) {\n                throw err;\n            }\n            else {\n                hostReportError_1.hostReportError(err);\n            }\n        }\n    };\n    SafeSubscriber.prototype.__tryOrSetError = function (parent, fn, value) {\n        if (!config_1.config.useDeprecatedSynchronousErrorHandling) {\n            throw new Error('bad call');\n        }\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            if (config_1.config.useDeprecatedSynchronousErrorHandling) {\n                parent.syncErrorValue = err;\n                parent.syncErrorThrown = true;\n                return true;\n            }\n            else {\n                hostReportError_1.hostReportError(err);\n                return true;\n            }\n        }\n        return false;\n    };\n    SafeSubscriber.prototype._unsubscribe = function () {\n        var _parentSubscriber = this._parentSubscriber;\n        this._context = null;\n        this._parentSubscriber = null;\n        _parentSubscriber.unsubscribe();\n    };\n    return SafeSubscriber;\n}(Subscriber));\nexports.SafeSubscriber = 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If you are a consumer of the\n * Raven library, you SHOULD load this file (vs raven.js).\n **/\n\nvar RavenConstructor = require('./raven');\n\n// This is to be defensive in environments where window does not exist (see https://github.com/getsentry/raven-js/pull/785)\nvar _window =\n  typeof window !== 'undefined'\n    ? window\n    : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\nvar _Raven = _window.Raven;\n\nvar Raven = new RavenConstructor();\n\n/*\n * Allow multiple versions of Raven to be installed.\n * Strip Raven from the global context and returns the instance.\n *\n * @return {Raven}\n */\nRaven.noConflict = function() {\n  _window.Raven = _Raven;\n  return Raven;\n};\n\nRaven.afterLoad();\n\nmodule.exports = Raven;\n\n/**\n * DISCLAIMER:\n *\n * Expose `Client` constructor for cases where user want to track multiple \"sub-applications\" in one larger app.\n * It's not meant to be used by a wide audience, so pleaaase make sure that you know what you're doing before using it.\n * Accidentally calling `install` multiple times, may result in an unexpected behavior that's very hard to debug.\n *\n * It's called `Client' to be in-line with Raven Node implementation.\n *\n * HOWTO:\n *\n * import Raven from 'raven-js';\n *\n * const someAppReporter = new Raven.Client();\n * const someOtherAppReporter = new Raven.Client();\n *\n * someAppReporter.config('__DSN__', {\n *   ...config goes here\n * });\n *\n * someOtherAppReporter.config('__OTHER_DSN__', {\n *   ...config goes here\n * });\n *\n * someAppReporter.captureMessage(...);\n * someAppReporter.captureException(...);\n * someAppReporter.captureBreadcrumb(...);\n *\n * someOtherAppReporter.captureMessage(...);\n * someOtherAppReporter.captureException(...);\n * someOtherAppReporter.captureBreadcrumb(...);\n *\n * It should \"just work\".\n */\nmodule.exports.Client = RavenConstructor;\n","\n;(function (name, root, factory) {\n  if (typeof exports === 'object') {\n    module.exports = factory()\n    module.exports['default'] = factory()\n  }\n  /* istanbul ignore next */\n  else if (typeof define === 'function' && define.amd) {\n    define(factory)\n  }\n  else {\n    root[name] = factory()\n  }\n}('slugify', this, function () {\n  var charMap = JSON.parse('{\"$\":\"dollar\",\"%\":\"percent\",\"&\":\"and\",\"<\":\"less\",\">\":\"greater\",\"|\":\"or\",\"¢\":\"cent\",\"£\":\"pound\",\"¤\":\"currency\",\"¥\":\"yen\",\"©\":\"(c)\",\"ª\":\"a\",\"®\":\"(r)\",\"º\":\"o\",\"À\":\"A\",\"Á\":\"A\",\"Â\":\"A\",\"Ã\":\"A\",\"Ä\":\"A\",\"Å\":\"A\",\"Æ\":\"AE\",\"Ç\":\"C\",\"È\":\"E\",\"É\":\"E\",\"Ê\":\"E\",\"Ë\":\"E\",\"Ì\":\"I\",\"Í\":\"I\",\"Î\":\"I\",\"Ï\":\"I\",\"Ð\":\"D\",\"Ñ\":\"N\",\"Ò\":\"O\",\"Ó\":\"O\",\"Ô\":\"O\",\"Õ\":\"O\",\"Ö\":\"O\",\"Ø\":\"O\",\"Ù\":\"U\",\"Ú\":\"U\",\"Û\":\"U\",\"Ü\":\"U\",\"Ý\":\"Y\",\"Þ\":\"TH\",\"ß\":\"ss\",\"à\":\"a\",\"á\":\"a\",\"â\":\"a\",\"ã\":\"a\",\"ä\":\"a\",\"å\":\"a\",\"æ\":\"ae\",\"ç\":\"c\",\"è\":\"e\",\"é\":\"e\",\"ê\":\"e\",\"ë\":\"e\",\"ì\":\"i\",\"í\":\"i\",\"î\":\"i\",\"ï\":\"i\",\"ð\":\"d\",\"ñ\":\"n\",\"ò\":\"o\",\"ó\":\"o\",\"ô\":\"o\",\"õ\":\"o\",\"ö\":\"o\",\"ø\":\"o\",\"ù\":\"u\",\"ú\":\"u\",\"û\":\"u\",\"ü\":\"u\",\"ý\":\"y\",\"þ\":\"th\",\"ÿ\":\"y\",\"Ā\":\"A\",\"ā\":\"a\",\"Ă\":\"A\",\"ă\":\"a\",\"Ą\":\"A\",\"ą\":\"a\",\"Ć\":\"C\",\"ć\":\"c\",\"Č\":\"C\",\"č\":\"c\",\"Ď\":\"D\",\"ď\":\"d\",\"Đ\":\"DJ\",\"đ\":\"dj\",\"Ē\":\"E\",\"ē\":\"e\",\"Ė\":\"E\",\"ė\":\"e\",\"Ę\":\"e\",\"ę\":\"e\",\"Ě\":\"E\",\"ě\":\"e\",\"Ğ\":\"G\",\"ğ\":\"g\",\"Ģ\":\"G\",\"ģ\":\"g\",\"Ĩ\":\"I\",\"ĩ\":\"i\",\"Ī\":\"i\",\"ī\":\"i\",\"Į\":\"I\",\"į\":\"i\",\"İ\":\"I\",\"ı\":\"i\",\"Ķ\":\"k\",\"ķ\":\"k\",\"Ļ\":\"L\",\"ļ\":\"l\",\"Ľ\":\"L\",\"ľ\":\"l\",\"Ł\":\"L\",\"ł\":\"l\",\"Ń\":\"N\",\"ń\":\"n\",\"Ņ\":\"N\",\"ņ\":\"n\",\"Ň\":\"N\",\"ň\":\"n\",\"Ő\":\"O\",\"ő\":\"o\",\"Œ\":\"OE\",\"œ\":\"oe\",\"Ŕ\":\"R\",\"ŕ\":\"r\",\"Ř\":\"R\",\"ř\":\"r\",\"Ś\":\"S\",\"ś\":\"s\",\"Ş\":\"S\",\"ş\":\"s\",\"Š\":\"S\",\"š\":\"s\",\"Ţ\":\"T\",\"ţ\":\"t\",\"Ť\":\"T\",\"ť\":\"t\",\"Ũ\":\"U\",\"ũ\":\"u\",\"Ū\":\"u\",\"ū\":\"u\",\"Ů\":\"U\",\"ů\":\"u\",\"Ű\":\"U\",\"ű\":\"u\",\"Ų\":\"U\",\"ų\":\"u\",\"Ŵ\":\"W\",\"ŵ\":\"w\",\"Ŷ\":\"Y\",\"ŷ\":\"y\",\"Ÿ\":\"Y\",\"Ź\":\"Z\",\"ź\":\"z\",\"Ż\":\"Z\",\"ż\":\"z\",\"Ž\":\"Z\",\"ž\":\"z\",\"ƒ\":\"f\",\"Ơ\":\"O\",\"ơ\":\"o\",\"Ư\":\"U\",\"ư\":\"u\",\"Lj\":\"LJ\",\"lj\":\"lj\",\"Nj\":\"NJ\",\"nj\":\"nj\",\"Ș\":\"S\",\"ș\":\"s\",\"Ț\":\"T\",\"ț\":\"t\",\"˚\":\"o\",\"Ά\":\"A\",\"Έ\":\"E\",\"Ή\":\"H\",\"Ί\":\"I\",\"Ό\":\"O\",\"Ύ\":\"Y\",\"Ώ\":\"W\",\"ΐ\":\"i\",\"Α\":\"A\",\"Β\":\"B\",\"Γ\":\"G\",\"Δ\":\"D\",\"Ε\":\"E\",\"Ζ\":\"Z\",\"Η\":\"H\",\"Θ\":\"8\",\"Ι\":\"I\",\"Κ\":\"K\",\"Λ\":\"L\",\"Μ\":\"M\",\"Ν\":\"N\",\"Ξ\":\"3\",\"Ο\":\"O\",\"Π\":\"P\",\"Ρ\":\"R\",\"Σ\":\"S\",\"Τ\":\"T\",\"Υ\":\"Y\",\"Φ\":\"F\",\"Χ\":\"X\",\"Ψ\":\"PS\",\"Ω\":\"W\",\"Ϊ\":\"I\",\"Ϋ\":\"Y\",\"ά\":\"a\",\"έ\":\"e\",\"ή\":\"h\",\"ί\":\"i\",\"ΰ\":\"y\",\"α\":\"a\",\"β\":\"b\",\"γ\":\"g\",\"δ\":\"d\",\"ε\":\"e\",\"ζ\":\"z\",\"η\":\"h\",\"θ\":\"8\",\"ι\":\"i\",\"κ\":\"k\",\"λ\":\"l\",\"μ\":\"m\",\"ν\":\"n\",\"ξ\":\"3\",\"ο\":\"o\",\"π\":\"p\",\"ρ\":\"r\",\"ς\":\"s\",\"σ\":\"s\",\"τ\":\"t\",\"υ\":\"y\",\"φ\":\"f\",\"χ\":\"x\",\"ψ\":\"ps\",\"ω\":\"w\",\"ϊ\":\"i\",\"ϋ\":\"y\",\"ό\":\"o\",\"ύ\":\"y\",\"ώ\":\"w\",\"Ё\":\"Yo\",\"Ђ\":\"DJ\",\"Є\":\"Ye\",\"І\":\"I\",\"Ї\":\"Yi\",\"Ј\":\"J\",\"Љ\":\"LJ\",\"Њ\":\"NJ\",\"Ћ\":\"C\",\"Џ\":\"DZ\",\"А\":\"A\",\"Б\":\"B\",\"В\":\"V\",\"Г\":\"G\",\"Д\":\"D\",\"Е\":\"E\",\"Ж\":\"Zh\",\"З\":\"Z\",\"И\":\"I\",\"Й\":\"J\",\"К\":\"K\",\"Л\":\"L\",\"М\":\"M\",\"Н\":\"N\",\"О\":\"O\",\"П\":\"P\",\"Р\":\"R\",\"С\":\"S\",\"Т\":\"T\",\"У\":\"U\",\"Ф\":\"F\",\"Х\":\"H\",\"Ц\":\"C\",\"Ч\":\"Ch\",\"Ш\":\"Sh\",\"Щ\":\"Sh\",\"Ъ\":\"U\",\"Ы\":\"Y\",\"Ь\":\"\",\"Э\":\"E\",\"Ю\":\"Yu\",\"Я\":\"Ya\",\"а\":\"a\",\"б\":\"b\",\"в\":\"v\",\"г\":\"g\",\"д\":\"d\",\"е\":\"e\",\"ж\":\"zh\",\"з\":\"z\",\"и\":\"i\",\"й\":\"j\",\"к\":\"k\",\"л\":\"l\",\"м\":\"m\",\"н\":\"n\",\"о\":\"o\",\"п\":\"p\",\"р\":\"r\",\"с\":\"s\",\"т\":\"t\",\"у\":\"u\",\"ф\":\"f\",\"х\":\"h\",\"ц\":\"c\",\"ч\":\"ch\",\"ш\":\"sh\",\"щ\":\"sh\",\"ъ\":\"u\",\"ы\":\"y\",\"ь\":\"\",\"э\":\"e\",\"ю\":\"yu\",\"я\":\"ya\",\"ё\":\"yo\",\"ђ\":\"dj\",\"є\":\"ye\",\"і\":\"i\",\"ї\":\"yi\",\"ј\":\"j\",\"љ\":\"lj\",\"њ\":\"nj\",\"ћ\":\"c\",\"ѝ\":\"u\",\"џ\":\"dz\",\"Ґ\":\"G\",\"ґ\":\"g\",\"Ғ\":\"GH\",\"ғ\":\"gh\",\"Қ\":\"KH\",\"қ\":\"kh\",\"Ң\":\"NG\",\"ң\":\"ng\",\"Ү\":\"UE\",\"ү\":\"ue\",\"Ұ\":\"U\",\"ұ\":\"u\",\"Һ\":\"H\",\"һ\":\"h\",\"Ә\":\"AE\",\"ә\":\"ae\",\"Ө\":\"OE\",\"ө\":\"oe\",\"฿\":\"baht\",\"ა\":\"a\",\"ბ\":\"b\",\"გ\":\"g\",\"დ\":\"d\",\"ე\":\"e\",\"ვ\":\"v\",\"ზ\":\"z\",\"თ\":\"t\",\"ი\":\"i\",\"კ\":\"k\",\"ლ\":\"l\",\"მ\":\"m\",\"ნ\":\"n\",\"ო\":\"o\",\"პ\":\"p\",\"ჟ\":\"zh\",\"რ\":\"r\",\"ს\":\"s\",\"ტ\":\"t\",\"უ\":\"u\",\"ფ\":\"f\",\"ქ\":\"k\",\"ღ\":\"gh\",\"ყ\":\"q\",\"შ\":\"sh\",\"ჩ\":\"ch\",\"ც\":\"ts\",\"ძ\":\"dz\",\"წ\":\"ts\",\"ჭ\":\"ch\",\"ხ\":\"kh\",\"ჯ\":\"j\",\"ჰ\":\"h\",\"Ẁ\":\"W\",\"ẁ\":\"w\",\"Ẃ\":\"W\",\"ẃ\":\"w\",\"Ẅ\":\"W\",\"ẅ\":\"w\",\"ẞ\":\"SS\",\"Ạ\":\"A\",\"ạ\":\"a\",\"Ả\":\"A\",\"ả\":\"a\",\"Ấ\":\"A\",\"ấ\":\"a\",\"Ầ\":\"A\",\"ầ\":\"a\",\"Ẩ\":\"A\",\"ẩ\":\"a\",\"Ẫ\":\"A\",\"ẫ\":\"a\",\"Ậ\":\"A\",\"ậ\":\"a\",\"Ắ\":\"A\",\"ắ\":\"a\",\"Ằ\":\"A\",\"ằ\":\"a\",\"Ẳ\":\"A\",\"ẳ\":\"a\",\"Ẵ\":\"A\",\"ẵ\":\"a\",\"Ặ\":\"A\",\"ặ\":\"a\",\"Ẹ\":\"E\",\"ẹ\":\"e\",\"Ẻ\":\"E\",\"ẻ\":\"e\",\"Ẽ\":\"E\",\"ẽ\":\"e\",\"Ế\":\"E\",\"ế\":\"e\",\"Ề\":\"E\",\"ề\":\"e\",\"Ể\":\"E\",\"ể\":\"e\",\"Ễ\":\"E\",\"ễ\":\"e\",\"Ệ\":\"E\",\"ệ\":\"e\",\"Ỉ\":\"I\",\"ỉ\":\"i\",\"Ị\":\"I\",\"ị\":\"i\",\"Ọ\":\"O\",\"ọ\":\"o\",\"Ỏ\":\"O\",\"ỏ\":\"o\",\"Ố\":\"O\",\"ố\":\"o\",\"Ồ\":\"O\",\"ồ\":\"o\",\"Ổ\":\"O\",\"ổ\":\"o\",\"Ỗ\":\"O\",\"ỗ\":\"o\",\"Ộ\":\"O\",\"ộ\":\"o\",\"Ớ\":\"O\",\"ớ\":\"o\",\"Ờ\":\"O\",\"ờ\":\"o\",\"Ở\":\"O\",\"ở\":\"o\",\"Ỡ\":\"O\",\"ỡ\":\"o\",\"Ợ\":\"O\",\"ợ\":\"o\",\"Ụ\":\"U\",\"ụ\":\"u\",\"Ủ\":\"U\",\"ủ\":\"u\",\"Ứ\":\"U\",\"ứ\":\"u\",\"Ừ\":\"U\",\"ừ\":\"u\",\"Ử\":\"U\",\"ử\":\"u\",\"Ữ\":\"U\",\"ữ\":\"u\",\"Ự\":\"U\",\"ự\":\"u\",\"Ỳ\":\"Y\",\"ỳ\":\"y\",\"Ỵ\":\"Y\",\"ỵ\":\"y\",\"Ỷ\":\"Y\",\"ỷ\":\"y\",\"Ỹ\":\"Y\",\"ỹ\":\"y\",\"‘\":\"\\'\",\"’\":\"\\'\",\"“\":\"\\\\\\\"\",\"”\":\"\\\\\\\"\",\"†\":\"+\",\"•\":\"*\",\"…\":\"...\",\"₠\":\"ecu\",\"₢\":\"cruzeiro\",\"₣\":\"french franc\",\"₤\":\"lira\",\"₥\":\"mill\",\"₦\":\"naira\",\"₧\":\"peseta\",\"₨\":\"rupee\",\"₩\":\"won\",\"₪\":\"new shequel\",\"₫\":\"dong\",\"€\":\"euro\",\"₭\":\"kip\",\"₮\":\"tugrik\",\"₯\":\"drachma\",\"₰\":\"penny\",\"₱\":\"peso\",\"₲\":\"guarani\",\"₳\":\"austral\",\"₴\":\"hryvnia\",\"₵\":\"cedi\",\"₸\":\"kazakhstani tenge\",\"₹\":\"indian rupee\",\"₽\":\"russian ruble\",\"₿\":\"bitcoin\",\"℠\":\"sm\",\"™\":\"tm\",\"∂\":\"d\",\"∆\":\"delta\",\"∑\":\"sum\",\"∞\":\"infinity\",\"♥\":\"love\",\"元\":\"yuan\",\"円\":\"yen\",\"﷼\":\"rial\"}')\n  var locales = JSON.parse('{\"vi\":{\"Đ\":\"D\",\"đ\":\"d\"}}')\n\n  function replace (string, options) {\n    if (typeof string !== 'string') {\n      throw new Error('slugify: string argument expected')\n    }\n\n    options = (typeof options === 'string')\n      ? {replacement: options}\n      : options || {}\n\n    var locale = locales[options.locale] || {}\n\n    var replacement = options.replacement || '-'\n\n    var slug = string.split('')\n      // replace characters based on charMap\n      .reduce(function (result, ch) {\n        return result + (locale[ch] || charMap[ch] || ch)\n      }, '')\n      // remove not allowed characters\n      .replace(options.remove || /[^\\w\\s$*_+~.()'\"!\\-:@]+/g, '')\n      // trim leading/trailing spaces\n      .trim()\n      // convert spaces to replacement character\n      // also remove duplicates of the replacement character\n      .replace(new RegExp('[\\\\s' + replacement + ']+', 'g'), replacement)\n\n    if (options.lower) {\n      slug = slug.toLowerCase()\n    }\n\n    if (options.strict) {\n      // remove anything besides letters, numbers, and the replacement char\n      slug = slug\n        .replace(new RegExp('[^a-zA-Z0-9' + replacement + ']', 'g'), '')\n    }\n\n    return slug\n  }\n\n  replace.extend = function (customMap) {\n    for (var key in customMap) {\n      charMap[key] = customMap[key]\n    }\n  }\n\n  return replace\n}))\n","'use strict';\n\nvar isMergeableObject = function isMergeableObject(value) {\n\treturn isNonNullObject(value)\n\t\t&& !isSpecial(value)\n};\n\nfunction isNonNullObject(value) {\n\treturn !!value && typeof value === 'object'\n}\n\nfunction isSpecial(value) {\n\tvar stringValue = Object.prototype.toString.call(value);\n\n\treturn stringValue === '[object RegExp]'\n\t\t|| stringValue === '[object Date]'\n\t\t|| isReactElement(value)\n}\n\n// see https://github.com/facebook/react/blob/b5ac963fb791d1298e7f396236383bc955f916c1/src/isomorphic/classic/element/ReactElement.js#L21-L25\nvar canUseSymbol = typeof Symbol === 'function' && Symbol.for;\nvar REACT_ELEMENT_TYPE = canUseSymbol ? Symbol.for('react.element') : 0xeac7;\n\nfunction isReactElement(value) {\n\treturn value.$$typeof === REACT_ELEMENT_TYPE\n}\n\nfunction emptyTarget(val) {\n\treturn Array.isArray(val) ? [] : {}\n}\n\nfunction cloneUnlessOtherwiseSpecified(value, options) {\n\treturn (options.clone !== false && options.isMergeableObject(value))\n\t\t? deepmerge(emptyTarget(value), value, options)\n\t\t: value\n}\n\nfunction defaultArrayMerge(target, source, options) {\n\treturn target.concat(source).map(function(element) {\n\t\treturn cloneUnlessOtherwiseSpecified(element, options)\n\t})\n}\n\nfunction getMergeFunction(key, options) {\n\tif (!options.customMerge) {\n\t\treturn deepmerge\n\t}\n\tvar customMerge = options.customMerge(key);\n\treturn typeof customMerge === 'function' ? customMerge : deepmerge\n}\n\nfunction getEnumerableOwnPropertySymbols(target) {\n\treturn Object.getOwnPropertySymbols\n\t\t? Object.getOwnPropertySymbols(target).filter(function(symbol) {\n\t\t\treturn target.propertyIsEnumerable(symbol)\n\t\t})\n\t\t: []\n}\n\nfunction getKeys(target) {\n\treturn Object.keys(target).concat(getEnumerableOwnPropertySymbols(target))\n}\n\nfunction propertyIsOnObject(object, property) {\n\ttry {\n\t\treturn property in object\n\t} catch(_) {\n\t\treturn false\n\t}\n}\n\n// Protects from prototype poisoning and unexpected merging up the prototype chain.\nfunction propertyIsUnsafe(target, key) {\n\treturn propertyIsOnObject(target, key) // Properties are safe to merge if they don't exist in the target yet,\n\t\t&& !(Object.hasOwnProperty.call(target, key) // unsafe if they exist up the prototype chain,\n\t\t\t&& Object.propertyIsEnumerable.call(target, key)) // and also unsafe if they're nonenumerable.\n}\n\nfunction mergeObject(target, source, options) {\n\tvar destination = {};\n\tif (options.isMergeableObject(target)) {\n\t\tgetKeys(target).forEach(function(key) {\n\t\t\tdestination[key] = cloneUnlessOtherwiseSpecified(target[key], options);\n\t\t});\n\t}\n\tgetKeys(source).forEach(function(key) {\n\t\tif (propertyIsUnsafe(target, key)) {\n\t\t\treturn\n\t\t}\n\n\t\tif (propertyIsOnObject(target, key) && options.isMergeableObject(source[key])) {\n\t\t\tdestination[key] = getMergeFunction(key, options)(target[key], source[key], options);\n\t\t} else {\n\t\t\tdestination[key] = cloneUnlessOtherwiseSpecified(source[key], options);\n\t\t}\n\t});\n\treturn destination\n}\n\nfunction deepmerge(target, source, options) {\n\toptions = options || {};\n\toptions.arrayMerge = options.arrayMerge || defaultArrayMerge;\n\toptions.isMergeableObject = options.isMergeableObject || isMergeableObject;\n\t// cloneUnlessOtherwiseSpecified is added to `options` so that custom arrayMerge()\n\t// implementations can use it. The caller may not replace it.\n\toptions.cloneUnlessOtherwiseSpecified = cloneUnlessOtherwiseSpecified;\n\n\tvar sourceIsArray = Array.isArray(source);\n\tvar targetIsArray = Array.isArray(target);\n\tvar sourceAndTargetTypesMatch = sourceIsArray === targetIsArray;\n\n\tif (!sourceAndTargetTypesMatch) {\n\t\treturn cloneUnlessOtherwiseSpecified(source, options)\n\t} else if (sourceIsArray) {\n\t\treturn options.arrayMerge(target, source, options)\n\t} else {\n\t\treturn mergeObject(target, source, options)\n\t}\n}\n\ndeepmerge.all = function deepmergeAll(array, options) {\n\tif (!Array.isArray(array)) {\n\t\tthrow new Error('first argument should be an array')\n\t}\n\n\treturn array.reduce(function(prev, next) {\n\t\treturn deepmerge(prev, next, options)\n\t}, {})\n};\n\nvar deepmerge_1 = deepmerge;\n\nmodule.exports = deepmerge_1;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar canReportError_1 = require(\"./util/canReportError\");\nvar toSubscriber_1 = require(\"./util/toSubscriber\");\nvar observable_1 = require(\"./symbol/observable\");\nvar pipe_1 = require(\"./util/pipe\");\nvar config_1 = require(\"./config\");\nvar Observable = (function () {\n    function Observable(subscribe) {\n        this._isScalar = false;\n        if (subscribe) {\n            this._subscribe = subscribe;\n        }\n    }\n    Observable.prototype.lift = function (operator) {\n        var observable = new Observable();\n        observable.source = this;\n        observable.operator = operator;\n        return observable;\n    };\n    Observable.prototype.subscribe = function (observerOrNext, error, complete) {\n        var operator = this.operator;\n        var sink = toSubscriber_1.toSubscriber(observerOrNext, error, complete);\n        if (operator) {\n            sink.add(operator.call(sink, this.source));\n        }\n        else {\n            sink.add(this.source || (config_1.config.useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable) ?\n                this._subscribe(sink) :\n                this._trySubscribe(sink));\n        }\n        if (config_1.config.useDeprecatedSynchronousErrorHandling) {\n            if (sink.syncErrorThrowable) {\n                sink.syncErrorThrowable = false;\n                if (sink.syncErrorThrown) {\n                    throw sink.syncErrorValue;\n                }\n            }\n        }\n        return sink;\n    };\n    Observable.prototype._trySubscribe = function (sink) {\n        try {\n            return this._subscribe(sink);\n        }\n        catch (err) {\n            if (config_1.config.useDeprecatedSynchronousErrorHandling) {\n                sink.syncErrorThrown = true;\n                sink.syncErrorValue = err;\n            }\n            if (canReportError_1.canReportError(sink)) {\n                sink.error(err);\n            }\n            else {\n                console.warn(err);\n            }\n        }\n    };\n    Observable.prototype.forEach = function (next, promiseCtor) {\n        var _this = this;\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor(function (resolve, reject) {\n            var subscription;\n            subscription = _this.subscribe(function (value) {\n                try {\n                    next(value);\n                }\n                catch (err) {\n                    reject(err);\n                    if (subscription) {\n                        subscription.unsubscribe();\n                    }\n                }\n            }, reject, resolve);\n        });\n    };\n    Observable.prototype._subscribe = function (subscriber) {\n        var source = this.source;\n        return source && source.subscribe(subscriber);\n    };\n    Observable.prototype[observable_1.observable] = function () {\n        return this;\n    };\n    Observable.prototype.pipe = function () {\n        var operations = [];\n        for (var _i = 0; _i < arguments.length; _i++) {\n            operations[_i] = arguments[_i];\n        }\n        if (operations.length === 0) {\n            return this;\n        }\n        return pipe_1.pipeFromArray(operations)(this);\n    };\n    Observable.prototype.toPromise = function (promiseCtor) {\n        var _this = this;\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor(function (resolve, reject) {\n            var value;\n            _this.subscribe(function (x) { return value = x; }, function (err) { return reject(err); }, function () { return resolve(value); });\n        });\n    };\n    Observable.create = function (subscribe) {\n        return new Observable(subscribe);\n    };\n    return Observable;\n}());\nexports.Observable = Observable;\nfunction getPromiseCtor(promiseCtor) {\n    if (!promiseCtor) {\n        promiseCtor = config_1.config.Promise || Promise;\n    }\n    if (!promiseCtor) {\n        throw new Error('no Promise impl found');\n    }\n    return promiseCtor;\n}\n//# sourceMappingURL=Observable.js.map","(function(root, globalName, factory) {\r\n  if (typeof define === 'function' && define.amd) {\r\n    // AMD:\r\n    define([], factory);\r\n  } else if (typeof module === 'object' && module.exports) {\r\n    // Node:\r\n    module.exports = factory();\r\n    // Use module export as simulated ES6 default export:\r\n    module.exports.default = module.exports;\r\n  } else {\r\n    // Browser:\r\n    window[globalName] = factory();\r\n  }\r\n}(this, 'b64toBlob', function() {\r\n  'use strict';\r\n\r\n  return function b64toBlob(b64Data, contentType, sliceSize) {\r\n    contentType = contentType || '';\r\n    sliceSize = sliceSize || 512;\r\n\r\n    var byteCharacters = atob(b64Data);\r\n    var byteArrays = [];\r\n\r\n    for (var offset = 0; offset < byteCharacters.length; offset += sliceSize) {\r\n      var slice = byteCharacters.slice(offset, offset + sliceSize);\r\n\r\n      var byteNumbers = new Array(slice.length);\r\n      for (var i = 0; i < slice.length; i++) {\r\n        byteNumbers[i] = slice.charCodeAt(i);\r\n      }\r\n  \r\n      var byteArray = new Uint8Array(byteNumbers);\r\n  \r\n      byteArrays.push(byteArray);\r\n    }\r\n  \r\n    var blob = new Blob(byteArrays, {type: contentType});\r\n    return blob;\r\n  };\r\n}));\r\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar Subscriber_1 = require(\"../Subscriber\");\nvar rxSubscriber_1 = require(\"../symbol/rxSubscriber\");\nvar Observer_1 = require(\"../Observer\");\nfunction toSubscriber(nextOrObserver, error, complete) {\n    if (nextOrObserver) {\n        if (nextOrObserver instanceof Subscriber_1.Subscriber) {\n            return nextOrObserver;\n        }\n        if (nextOrObserver[rxSubscriber_1.rxSubscriber]) {\n            return nextOrObserver[rxSubscriber_1.rxSubscriber]();\n        }\n    }\n    if (!nextOrObserver && !error && !complete) {\n        return new Subscriber_1.Subscriber(Observer_1.empty);\n    }\n    return new Subscriber_1.Subscriber(nextOrObserver, error, complete);\n}\nexports.toSubscriber = toSubscriber;\n//# sourceMappingURL=toSubscriber.js.map","function webpackEmptyAsyncContext(req) {\n\t// Here Promise.resolve().then() is used instead of new Promise() to prevent\n\t// uncaught exception popping up in devtools\n\treturn Promise.resolve().then(function() {\n\t\tvar e = new Error(\"Cannot find module '\" + req + \"'\");\n\t\te.code = 'MODULE_NOT_FOUND';\n\t\tthrow e;\n\t});\n}\nwebpackEmptyAsyncContext.keys = function() { return []; };\nwebpackEmptyAsyncContext.resolve = webpackEmptyAsyncContext;\nmodule.exports = webpackEmptyAsyncContext;\nwebpackEmptyAsyncContext.id = \"crnd\";","/* build: `node build.js modules=ALL exclude=gestures,accessors requirejs minifier=uglifyjs` */\n/*! Fabric.js Copyright 2008-2015, Printio (Juriy Zaytsev, Maxim Chernyak) */\n\nvar fabric = fabric || { version: '3.6.3' };\nif (typeof exports !== 'undefined') {\n  exports.fabric = fabric;\n}\n/* _AMD_START_ */\nelse if (typeof define === 'function' && define.amd) {\n  define([], function() { return fabric; });\n}\n/* _AMD_END_ */\nif (typeof document !== 'undefined' && typeof window !== 'undefined') {\n  if (document instanceof (typeof HTMLDocument !== 'undefined' ? HTMLDocument : Document)) {\n    fabric.document = document;\n  }\n  else {\n    fabric.document = document.implementation.createHTMLDocument('');\n  }\n  fabric.window = window;\n}\nelse {\n  // assume we're running under node.js when document/window are not present\n  var jsdom = require('jsdom');\n  var virtualWindow = new jsdom.JSDOM(\n    decodeURIComponent('%3C!DOCTYPE%20html%3E%3Chtml%3E%3Chead%3E%3C%2Fhead%3E%3Cbody%3E%3C%2Fbody%3E%3C%2Fhtml%3E'),\n    {\n      features: {\n        FetchExternalResources: ['img']\n      },\n      resources: 'usable'\n    }).window;\n  fabric.document = virtualWindow.document;\n  fabric.jsdomImplForWrapper = require('jsdom/lib/jsdom/living/generated/utils').implForWrapper;\n  fabric.nodeCanvas = require('jsdom/lib/jsdom/utils').Canvas;\n  fabric.window = virtualWindow;\n  DOMParser = fabric.window.DOMParser;\n}\n\n/**\n * True when in environment that supports touch events\n * @type boolean\n */\nfabric.isTouchSupported = 'ontouchstart' in fabric.window || 'ontouchstart' in fabric.document ||\n  (fabric.window && fabric.window.navigator && fabric.window.navigator.maxTouchPoints > 0);\n\n/**\n * True when in environment that's probably Node.js\n * @type boolean\n */\nfabric.isLikelyNode = typeof Buffer !== 'undefined' &&\n                      typeof window === 'undefined';\n\n/* _FROM_SVG_START_ */\n/**\n * Attributes parsed from all SVG elements\n * @type array\n */\nfabric.SHARED_ATTRIBUTES = [\n  'display',\n  'transform',\n  'fill', 'fill-opacity', 'fill-rule',\n  'opacity',\n  'stroke', 'stroke-dasharray', 'stroke-linecap', 'stroke-dashoffset',\n  'stroke-linejoin', 'stroke-miterlimit',\n  'stroke-opacity', 'stroke-width',\n  'id', 'paint-order', 'vector-effect',\n  'instantiated_by_use', 'clip-path'\n];\n/* _FROM_SVG_END_ */\n\n/**\n * Pixel per Inch as a default value set to 96. Can be changed for more realistic conversion.\n */\nfabric.DPI = 96;\nfabric.reNum = '(?:[-+]?(?:\\\\d+|\\\\d*\\\\.\\\\d+)(?:[eE][-+]?\\\\d+)?)';\nfabric.rePathCommand = /([-+]?((\\d+\\.\\d+)|((\\d+)|(\\.\\d+)))(?:[eE][-+]?\\d+)?)/ig;\nfabric.reNonWord = /[ \\n\\.,;!\\?\\-]/;\nfabric.fontPaths = { };\nfabric.iMatrix = [1, 0, 0, 1, 0, 0];\nfabric.svgNS = 'http://www.w3.org/2000/svg';\n\n/**\n * Pixel limit for cache canvases. 1Mpx , 4Mpx should be fine.\n * @since 1.7.14\n * @type Number\n * @default\n */\nfabric.perfLimitSizeTotal = 2097152;\n\n/**\n * Pixel limit for cache canvases width or height. IE fixes the maximum at 5000\n * @since 1.7.14\n * @type Number\n * @default\n */\nfabric.maxCacheSideLimit = 4096;\n\n/**\n * Lowest pixel limit for cache canvases, set at 256PX\n * @since 1.7.14\n * @type Number\n * @default\n */\nfabric.minCacheSideLimit = 256;\n\n/**\n * Cache Object for widths of chars in text rendering.\n */\nfabric.charWidthsCache = { };\n\n/**\n * if webgl is enabled and available, textureSize will determine the size\n * of the canvas backend\n * @since 2.0.0\n * @type Number\n * @default\n */\nfabric.textureSize = 2048;\n\n/**\n * When 'true', style information is not retained when copy/pasting text, making\n * pasted text use destination style.\n * Defaults to 'false'.\n * @type Boolean\n * @default\n */\nfabric.disableStyleCopyPaste = false;\n\n/**\n * Enable webgl for filtering picture is available\n * A filtering backend will be initialized, this will both take memory and\n * time since a default 2048x2048 canvas will be created for the gl context\n * @since 2.0.0\n * @type Boolean\n * @default\n */\nfabric.enableGLFiltering = true;\n\n/**\n * Device Pixel Ratio\n * @see https://developer.apple.com/library/safari/documentation/AudioVideo/Conceptual/HTML-canvas-guide/SettingUptheCanvas/SettingUptheCanvas.html\n */\nfabric.devicePixelRatio = fabric.window.devicePixelRatio ||\n                          fabric.window.webkitDevicePixelRatio ||\n                          fabric.window.mozDevicePixelRatio ||\n                          1;\n/**\n * Browser-specific constant to adjust CanvasRenderingContext2D.shadowBlur value,\n * which is unitless and not rendered equally across browsers.\n *\n * Values that work quite well (as of October 2017) are:\n * - Chrome: 1.5\n * - Edge: 1.75\n * - Firefox: 0.9\n * - Safari: 0.95\n *\n * @since 2.0.0\n * @type Number\n * @default 1\n */\nfabric.browserShadowBlurConstant = 1;\n\n/**\n * This object contains the result of arc to beizer conversion for faster retrieving if the same arc needs to be converted again.\n * It was an internal variable, is accessible since version 2.3.4\n */\nfabric.arcToSegmentsCache = { };\n\n/**\n * This object keeps the results of the boundsOfCurve calculation mapped by the joined arguments necessary to calculate it.\n * It does speed up calculation, if you parse and add always the same paths, but in case of heavy usage of freedrawing\n * you do not get any speed benefit and you get a big object in memory.\n * The object was a private variable before, while now is appended to the lib so that you have access to it and you\n * can eventually clear it.\n * It was an internal variable, is accessible since version 2.3.4\n */\nfabric.boundsOfCurveCache = { };\n\n/**\n * If disabled boundsOfCurveCache is not used. For apps that make heavy usage of pencil drawing probably disabling it is better\n * @default true\n */\nfabric.cachesBoundsOfCurve = true;\n\n/**\n * Skip performance testing of setupGLContext and force the use of putImageData that seems to be the one that works best on\n * Chrome + old hardware. if your users are experiencing empty images after filtering you may try to force this to true\n * this has to be set before instantiating the filtering backend ( before filtering the first image )\n * @type Boolean\n * @default false\n */\nfabric.forceGLPutImageData = false;\n\nfabric.initFilterBackend = function() {\n  if (fabric.enableGLFiltering && fabric.isWebglSupported && fabric.isWebglSupported(fabric.textureSize)) {\n    console.log('max texture size: ' + fabric.maxTextureSize);\n    return (new fabric.WebglFilterBackend({ tileSize: fabric.textureSize }));\n  }\n  else if (fabric.Canvas2dFilterBackend) {\n    return (new fabric.Canvas2dFilterBackend());\n  }\n};\n\n\nif (typeof document !== 'undefined' && typeof window !== 'undefined') {\n  // ensure globality even if entire library were function wrapped (as in Meteor.js packaging system)\n  window.fabric = fabric;\n}\n\n\n(function() {\n\n  /**\n   * @private\n   * @param {String} eventName\n   * @param {Function} handler\n   */\n  function _removeEventListener(eventName, handler) {\n    if (!this.__eventListeners[eventName]) {\n      return;\n    }\n    var eventListener = this.__eventListeners[eventName];\n    if (handler) {\n      eventListener[eventListener.indexOf(handler)] = false;\n    }\n    else {\n      fabric.util.array.fill(eventListener, false);\n    }\n  }\n\n  /**\n   * Observes specified event\n   * @deprecated `observe` deprecated since 0.8.34 (use `on` instead)\n   * @memberOf fabric.Observable\n   * @alias on\n   * @param {String|Object} eventName Event name (eg. 'after:render') or object with key/value pairs (eg. {'after:render': handler, 'selection:cleared': handler})\n   * @param {Function} handler Function that receives a notification when an event of the specified type occurs\n   * @return {Self} thisArg\n   * @chainable\n   */\n  function observe(eventName, handler) {\n    if (!this.__eventListeners) {\n      this.__eventListeners = { };\n    }\n    // one object with key/value pairs was passed\n    if (arguments.length === 1) {\n      for (var prop in eventName) {\n        this.on(prop, eventName[prop]);\n      }\n    }\n    else {\n      if (!this.__eventListeners[eventName]) {\n        this.__eventListeners[eventName] = [];\n      }\n      this.__eventListeners[eventName].push(handler);\n    }\n    return this;\n  }\n\n  /**\n   * Stops event observing for a particular event handler. Calling this method\n   * without arguments removes all handlers for all events\n   * @deprecated `stopObserving` deprecated since 0.8.34 (use `off` instead)\n   * @memberOf fabric.Observable\n   * @alias off\n   * @param {String|Object} eventName Event name (eg. 'after:render') or object with key/value pairs (eg. {'after:render': handler, 'selection:cleared': handler})\n   * @param {Function} handler Function to be deleted from EventListeners\n   * @return {Self} thisArg\n   * @chainable\n   */\n  function stopObserving(eventName, handler) {\n    if (!this.__eventListeners) {\n      return this;\n    }\n\n    // remove all key/value pairs (event name -> event handler)\n    if (arguments.length === 0) {\n      for (eventName in this.__eventListeners) {\n        _removeEventListener.call(this, eventName);\n      }\n    }\n    // one object with key/value pairs was passed\n    else if (arguments.length === 1 && typeof arguments[0] === 'object') {\n      for (var prop in eventName) {\n        _removeEventListener.call(this, prop, eventName[prop]);\n      }\n    }\n    else {\n      _removeEventListener.call(this, eventName, handler);\n    }\n    return this;\n  }\n\n  /**\n   * Fires event with an optional options object\n   * @deprecated `fire` deprecated since 1.0.7 (use `trigger` instead)\n   * @memberOf fabric.Observable\n   * @alias trigger\n   * @param {String} eventName Event name to fire\n   * @param {Object} [options] Options object\n   * @return {Self} thisArg\n   * @chainable\n   */\n  function fire(eventName, options) {\n    if (!this.__eventListeners) {\n      return this;\n    }\n\n    var listenersForEvent = this.__eventListeners[eventName];\n    if (!listenersForEvent) {\n      return this;\n    }\n\n    for (var i = 0, len = listenersForEvent.length; i < len; i++) {\n      listenersForEvent[i] && listenersForEvent[i].call(this, options || { });\n    }\n    this.__eventListeners[eventName] = listenersForEvent.filter(function(value) {\n      return value !== false;\n    });\n    return this;\n  }\n\n  /**\n   * @namespace fabric.Observable\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#events}\n   * @see {@link http://fabricjs.com/events|Events demo}\n   */\n  fabric.Observable = {\n    observe: observe,\n    stopObserving: stopObserving,\n    fire: fire,\n\n    on: observe,\n    off: stopObserving,\n    trigger: fire\n  };\n})();\n\n\n/**\n * @namespace fabric.Collection\n */\nfabric.Collection = {\n\n  _objects: [],\n\n  /**\n   * Adds objects to collection, Canvas or Group, then renders canvas\n   * (if `renderOnAddRemove` is not `false`).\n   * in case of Group no changes to bounding box are made.\n   * Objects should be instances of (or inherit from) fabric.Object\n   * Use of this function is highly discouraged for groups.\n   * you can add a bunch of objects with the add method but then you NEED\n   * to run a addWithUpdate call for the Group class or position/bbox will be wrong.\n   * @param {...fabric.Object} object Zero or more fabric instances\n   * @return {Self} thisArg\n   * @chainable\n   */\n  add: function () {\n    this._objects.push.apply(this._objects, arguments);\n    if (this._onObjectAdded) {\n      for (var i = 0, length = arguments.length; i < length; i++) {\n        this._onObjectAdded(arguments[i]);\n      }\n    }\n    this.renderOnAddRemove && this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Inserts an object into collection at specified index, then renders canvas (if `renderOnAddRemove` is not `false`)\n   * An object should be an instance of (or inherit from) fabric.Object\n   * Use of this function is highly discouraged for groups.\n   * you can add a bunch of objects with the insertAt method but then you NEED\n   * to run a addWithUpdate call for the Group class or position/bbox will be wrong.\n   * @param {Object} object Object to insert\n   * @param {Number} index Index to insert object at\n   * @param {Boolean} nonSplicing When `true`, no splicing (shifting) of objects occurs\n   * @return {Self} thisArg\n   * @chainable\n   */\n  insertAt: function (object, index, nonSplicing) {\n    var objects = this._objects;\n    if (nonSplicing) {\n      objects[index] = object;\n    }\n    else {\n      objects.splice(index, 0, object);\n    }\n    this._onObjectAdded && this._onObjectAdded(object);\n    this.renderOnAddRemove && this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Removes objects from a collection, then renders canvas (if `renderOnAddRemove` is not `false`)\n   * @param {...fabric.Object} object Zero or more fabric instances\n   * @return {Self} thisArg\n   * @chainable\n   */\n  remove: function() {\n    var objects = this._objects,\n        index, somethingRemoved = false;\n\n    for (var i = 0, length = arguments.length; i < length; i++) {\n      index = objects.indexOf(arguments[i]);\n\n      // only call onObjectRemoved if an object was actually removed\n      if (index !== -1) {\n        somethingRemoved = true;\n        objects.splice(index, 1);\n        this._onObjectRemoved && this._onObjectRemoved(arguments[i]);\n      }\n    }\n\n    this.renderOnAddRemove && somethingRemoved && this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Executes given function for each object in this group\n   * @param {Function} callback\n   *                   Callback invoked with current object as first argument,\n   *                   index - as second and an array of all objects - as third.\n   *                   Callback is invoked in a context of Global Object (e.g. `window`)\n   *                   when no `context` argument is given\n   *\n   * @param {Object} context Context (aka thisObject)\n   * @return {Self} thisArg\n   * @chainable\n   */\n  forEachObject: function(callback, context) {\n    var objects = this.getObjects();\n    for (var i = 0, len = objects.length; i < len; i++) {\n      callback.call(context, objects[i], i, objects);\n    }\n    return this;\n  },\n\n  /**\n   * Returns an array of children objects of this instance\n   * Type parameter introduced in 1.3.10\n   * since 2.3.5 this method return always a COPY of the array;\n   * @param {String} [type] When specified, only objects of this type are returned\n   * @return {Array}\n   */\n  getObjects: function(type) {\n    if (typeof type === 'undefined') {\n      return this._objects.concat();\n    }\n    return this._objects.filter(function(o) {\n      return o.type === type;\n    });\n  },\n\n  /**\n   * Returns object at specified index\n   * @param {Number} index\n   * @return {Self} thisArg\n   */\n  item: function (index) {\n    return this._objects[index];\n  },\n\n  /**\n   * Returns true if collection contains no objects\n   * @return {Boolean} true if collection is empty\n   */\n  isEmpty: function () {\n    return this._objects.length === 0;\n  },\n\n  /**\n   * Returns a size of a collection (i.e: length of an array containing its objects)\n   * @return {Number} Collection size\n   */\n  size: function() {\n    return this._objects.length;\n  },\n\n  /**\n   * Returns true if collection contains an object\n   * @param {Object} object Object to check against\n   * @return {Boolean} `true` if collection contains an object\n   */\n  contains: function(object) {\n    return this._objects.indexOf(object) > -1;\n  },\n\n  /**\n   * Returns number representation of a collection complexity\n   * @return {Number} complexity\n   */\n  complexity: function () {\n    return this._objects.reduce(function (memo, current) {\n      memo += current.complexity ? current.complexity() : 0;\n      return memo;\n    }, 0);\n  }\n};\n\n\n/**\n * @namespace fabric.CommonMethods\n */\nfabric.CommonMethods = {\n\n  /**\n   * Sets object's properties from options\n   * @param {Object} [options] Options object\n   */\n  _setOptions: function(options) {\n    for (var prop in options) {\n      this.set(prop, options[prop]);\n    }\n  },\n\n  /**\n   * @private\n   * @param {Object} [filler] Options object\n   * @param {String} [property] property to set the Gradient to\n   */\n  _initGradient: function(filler, property) {\n    if (filler && filler.colorStops && !(filler instanceof fabric.Gradient)) {\n      this.set(property, new fabric.Gradient(filler));\n    }\n  },\n\n  /**\n   * @private\n   * @param {Object} [filler] Options object\n   * @param {String} [property] property to set the Pattern to\n   * @param {Function} [callback] callback to invoke after pattern load\n   */\n  _initPattern: function(filler, property, callback) {\n    if (filler && filler.source && !(filler instanceof fabric.Pattern)) {\n      this.set(property, new fabric.Pattern(filler, callback));\n    }\n    else {\n      callback && callback();\n    }\n  },\n\n  /**\n   * @private\n   * @param {Object} [options] Options object\n   */\n  _initClipping: function(options) {\n    if (!options.clipTo || typeof options.clipTo !== 'string') {\n      return;\n    }\n\n    var functionBody = fabric.util.getFunctionBody(options.clipTo);\n    if (typeof functionBody !== 'undefined') {\n      this.clipTo = new Function('ctx', functionBody);\n    }\n  },\n\n  /**\n   * @private\n   */\n  _setObject: function(obj) {\n    for (var prop in obj) {\n      this._set(prop, obj[prop]);\n    }\n  },\n\n  /**\n   * Sets property to a given value. When changing position/dimension -related properties (left, top, scale, angle, etc.) `set` does not update position of object's borders/controls. If you need to update those, call `setCoords()`.\n   * @param {String|Object} key Property name or object (if object, iterate over the object properties)\n   * @param {Object|Function} value Property value (if function, the value is passed into it and its return value is used as a new one)\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  set: function(key, value) {\n    if (typeof key === 'object') {\n      this._setObject(key);\n    }\n    else {\n      if (typeof value === 'function' && key !== 'clipTo') {\n        this._set(key, value(this.get(key)));\n      }\n      else {\n        this._set(key, value);\n      }\n    }\n    return this;\n  },\n\n  _set: function(key, value) {\n    this[key] = value;\n  },\n\n  /**\n   * Toggles specified property from `true` to `false` or from `false` to `true`\n   * @param {String} property Property to toggle\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  toggle: function(property) {\n    var value = this.get(property);\n    if (typeof value === 'boolean') {\n      this.set(property, !value);\n    }\n    return this;\n  },\n\n  /**\n   * Basic getter\n   * @param {String} property Property name\n   * @return {*} value of a property\n   */\n  get: function(property) {\n    return this[property];\n  }\n};\n\n\n(function(global) {\n\n  var sqrt = Math.sqrt,\n      atan2 = Math.atan2,\n      pow = Math.pow,\n      PiBy180 = Math.PI / 180,\n      PiBy2 = Math.PI / 2;\n\n  /**\n   * @namespace fabric.util\n   */\n  fabric.util = {\n\n    /**\n     * Calculate the cos of an angle, avoiding returning floats for known results\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} angle the angle in radians or in degree\n     * @return {Number}\n     */\n    cos: function(angle) {\n      if (angle === 0) { return 1; }\n      if (angle < 0) {\n        // cos(a) = cos(-a)\n        angle = -angle;\n      }\n      var angleSlice = angle / PiBy2;\n      switch (angleSlice) {\n        case 1: case 3: return 0;\n        case 2: return -1;\n      }\n      return Math.cos(angle);\n    },\n\n    /**\n     * Calculate the sin of an angle, avoiding returning floats for known results\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} angle the angle in radians or in degree\n     * @return {Number}\n     */\n    sin: function(angle) {\n      if (angle === 0) { return 0; }\n      var angleSlice = angle / PiBy2, sign = 1;\n      if (angle < 0) {\n        // sin(-a) = -sin(a)\n        sign = -1;\n      }\n      switch (angleSlice) {\n        case 1: return sign;\n        case 2: return 0;\n        case 3: return -sign;\n      }\n      return Math.sin(angle);\n    },\n\n    /**\n     * Removes value from an array.\n     * Presence of value (and its position in an array) is determined via `Array.prototype.indexOf`\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} array\n     * @param {*} value\n     * @return {Array} original array\n     */\n    removeFromArray: function(array, value) {\n      var idx = array.indexOf(value);\n      if (idx !== -1) {\n        array.splice(idx, 1);\n      }\n      return array;\n    },\n\n    /**\n     * Returns random number between 2 specified ones.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} min lower limit\n     * @param {Number} max upper limit\n     * @return {Number} random value (between min and max)\n     */\n    getRandomInt: function(min, max) {\n      return Math.floor(Math.random() * (max - min + 1)) + min;\n    },\n\n    /**\n     * Transforms degrees to radians.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} degrees value in degrees\n     * @return {Number} value in radians\n     */\n    degreesToRadians: function(degrees) {\n      return degrees * PiBy180;\n    },\n\n    /**\n     * Transforms radians to degrees.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number} radians value in radians\n     * @return {Number} value in degrees\n     */\n    radiansToDegrees: function(radians) {\n      return radians / PiBy180;\n    },\n\n    /**\n     * Rotates `point` around `origin` with `radians`\n     * @static\n     * @memberOf fabric.util\n     * @param {fabric.Point} point The point to rotate\n     * @param {fabric.Point} origin The origin of the rotation\n     * @param {Number} radians The radians of the angle for the rotation\n     * @return {fabric.Point} The new rotated point\n     */\n    rotatePoint: function(point, origin, radians) {\n      point.subtractEquals(origin);\n      var v = fabric.util.rotateVector(point, radians);\n      return new fabric.Point(v.x, v.y).addEquals(origin);\n    },\n\n    /**\n     * Rotates `vector` with `radians`\n     * @static\n     * @memberOf fabric.util\n     * @param {Object} vector The vector to rotate (x and y)\n     * @param {Number} radians The radians of the angle for the rotation\n     * @return {Object} The new rotated point\n     */\n    rotateVector: function(vector, radians) {\n      var sin = fabric.util.sin(radians),\n          cos = fabric.util.cos(radians),\n          rx = vector.x * cos - vector.y * sin,\n          ry = vector.x * sin + vector.y * cos;\n      return {\n        x: rx,\n        y: ry\n      };\n    },\n\n    /**\n     * Apply transform t to point p\n     * @static\n     * @memberOf fabric.util\n     * @param  {fabric.Point} p The point to transform\n     * @param  {Array} t The transform\n     * @param  {Boolean} [ignoreOffset] Indicates that the offset should not be applied\n     * @return {fabric.Point} The transformed point\n     */\n    transformPoint: function(p, t, ignoreOffset) {\n      if (ignoreOffset) {\n        return new fabric.Point(\n          t[0] * p.x + t[2] * p.y,\n          t[1] * p.x + t[3] * p.y\n        );\n      }\n      return new fabric.Point(\n        t[0] * p.x + t[2] * p.y + t[4],\n        t[1] * p.x + t[3] * p.y + t[5]\n      );\n    },\n\n    /**\n     * Returns coordinates of points's bounding rectangle (left, top, width, height)\n     * @param {Array} points 4 points array\n     * @param {Array} [transform] an array of 6 numbers representing a 2x3 transform matrix\n     * @return {Object} Object with left, top, width, height properties\n     */\n    makeBoundingBoxFromPoints: function(points, transform) {\n      if (transform) {\n        for (var i = 0; i < points.length; i++) {\n          points[i] = fabric.util.transformPoint(points[i], transform);\n        }\n      }\n      var xPoints = [points[0].x, points[1].x, points[2].x, points[3].x],\n          minX = fabric.util.array.min(xPoints),\n          maxX = fabric.util.array.max(xPoints),\n          width = maxX - minX,\n          yPoints = [points[0].y, points[1].y, points[2].y, points[3].y],\n          minY = fabric.util.array.min(yPoints),\n          maxY = fabric.util.array.max(yPoints),\n          height = maxY - minY;\n\n      return {\n        left: minX,\n        top: minY,\n        width: width,\n        height: height\n      };\n    },\n\n    /**\n     * Invert transformation t\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} t The transform\n     * @return {Array} The inverted transform\n     */\n    invertTransform: function(t) {\n      var a = 1 / (t[0] * t[3] - t[1] * t[2]),\n          r = [a * t[3], -a * t[1], -a * t[2], a * t[0]],\n          o = fabric.util.transformPoint({ x: t[4], y: t[5] }, r, true);\n      r[4] = -o.x;\n      r[5] = -o.y;\n      return r;\n    },\n\n    /**\n     * A wrapper around Number#toFixed, which contrary to native method returns number, not string.\n     * @static\n     * @memberOf fabric.util\n     * @param {Number|String} number number to operate on\n     * @param {Number} fractionDigits number of fraction digits to \"leave\"\n     * @return {Number}\n     */\n    toFixed: function(number, fractionDigits) {\n      return parseFloat(Number(number).toFixed(fractionDigits));\n    },\n\n    /**\n     * Converts from attribute value to pixel value if applicable.\n     * Returns converted pixels or original value not converted.\n     * @param {Number|String} value number to operate on\n     * @param {Number} fontSize\n     * @return {Number|String}\n     */\n    parseUnit: function(value, fontSize) {\n      var unit = /\\D{0,2}$/.exec(value),\n          number = parseFloat(value);\n      if (!fontSize) {\n        fontSize = fabric.Text.DEFAULT_SVG_FONT_SIZE;\n      }\n      switch (unit[0]) {\n        case 'mm':\n          return number * fabric.DPI / 25.4;\n\n        case 'cm':\n          return number * fabric.DPI / 2.54;\n\n        case 'in':\n          return number * fabric.DPI;\n\n        case 'pt':\n          return number * fabric.DPI / 72; // or * 4 / 3\n\n        case 'pc':\n          return number * fabric.DPI / 72 * 12; // or * 16\n\n        case 'em':\n          return number * fontSize;\n\n        default:\n          return number;\n      }\n    },\n\n    /**\n     * Function which always returns `false`.\n     * @static\n     * @memberOf fabric.util\n     * @return {Boolean}\n     */\n    falseFunction: function() {\n      return false;\n    },\n\n    /**\n     * Returns klass \"Class\" object of given namespace\n     * @memberOf fabric.util\n     * @param {String} type Type of object (eg. 'circle')\n     * @param {String} namespace Namespace to get klass \"Class\" object from\n     * @return {Object} klass \"Class\"\n     */\n    getKlass: function(type, namespace) {\n      // capitalize first letter only\n      type = fabric.util.string.camelize(type.charAt(0).toUpperCase() + type.slice(1));\n      return fabric.util.resolveNamespace(namespace)[type];\n    },\n\n    /**\n     * Returns array of attributes for given svg that fabric parses\n     * @memberOf fabric.util\n     * @param {String} type Type of svg element (eg. 'circle')\n     * @return {Array} string names of supported attributes\n     */\n    getSvgAttributes: function(type) {\n      var attributes = [\n        'instantiated_by_use',\n        'style',\n        'id',\n        'class'\n      ];\n      switch (type) {\n        case 'linearGradient':\n          attributes = attributes.concat(['x1', 'y1', 'x2', 'y2', 'gradientUnits', 'gradientTransform']);\n          break;\n        case 'radialGradient':\n          attributes = attributes.concat(['gradientUnits', 'gradientTransform', 'cx', 'cy', 'r', 'fx', 'fy', 'fr']);\n          break;\n        case 'stop':\n          attributes = attributes.concat(['offset', 'stop-color', 'stop-opacity']);\n          break;\n      }\n      return attributes;\n    },\n\n    /**\n     * Returns object of given namespace\n     * @memberOf fabric.util\n     * @param {String} namespace Namespace string e.g. 'fabric.Image.filter' or 'fabric'\n     * @return {Object} Object for given namespace (default fabric)\n     */\n    resolveNamespace: function(namespace) {\n      if (!namespace) {\n        return fabric;\n      }\n\n      var parts = namespace.split('.'),\n          len = parts.length, i,\n          obj = global || fabric.window;\n\n      for (i = 0; i < len; ++i) {\n        obj = obj[parts[i]];\n      }\n\n      return obj;\n    },\n\n    /**\n     * Loads image element from given url and passes it to a callback\n     * @memberOf fabric.util\n     * @param {String} url URL representing an image\n     * @param {Function} callback Callback; invoked with loaded image\n     * @param {*} [context] Context to invoke callback in\n     * @param {Object} [crossOrigin] crossOrigin value to set image element to\n     */\n    loadImage: function(url, callback, context, crossOrigin) {\n      if (!url) {\n        callback && callback.call(context, url);\n        return;\n      }\n\n      var img = fabric.util.createImage();\n\n      /** @ignore */\n      var onLoadCallback = function () {\n        callback && callback.call(context, img);\n        img = img.onload = img.onerror = null;\n      };\n\n      img.onload = onLoadCallback;\n      /** @ignore */\n      img.onerror = function() {\n        fabric.log('Error loading ' + img.src);\n        callback && callback.call(context, null, true);\n        img = img.onload = img.onerror = null;\n      };\n\n      // data-urls appear to be buggy with crossOrigin\n      // https://github.com/kangax/fabric.js/commit/d0abb90f1cd5c5ef9d2a94d3fb21a22330da3e0a#commitcomment-4513767\n      // see https://code.google.com/p/chromium/issues/detail?id=315152\n      //     https://bugzilla.mozilla.org/show_bug.cgi?id=935069\n      if (url.indexOf('data') !== 0 && crossOrigin) {\n        img.crossOrigin = crossOrigin;\n      }\n\n      // IE10 / IE11-Fix: SVG contents from data: URI\n      // will only be available if the IMG is present\n      // in the DOM (and visible)\n      if (url.substring(0,14) === 'data:image/svg') {\n        img.onload = null;\n        fabric.util.loadImageInDom(img, onLoadCallback);\n      }\n\n      img.src = url;\n    },\n\n    /**\n     * Attaches SVG image with data: URL to the dom\n     * @memberOf fabric.util\n     * @param {Object} img Image object with data:image/svg src\n     * @param {Function} callback Callback; invoked with loaded image\n     * @return {Object} DOM element (div containing the SVG image)\n     */\n    loadImageInDom: function(img, onLoadCallback) {\n      var div = fabric.document.createElement('div');\n      div.style.width = div.style.height = '1px';\n      div.style.left = div.style.top = '-100%';\n      div.style.position = 'absolute';\n      div.appendChild(img);\n      fabric.document.querySelector('body').appendChild(div);\n      /**\n       * Wrap in function to:\n       *   1. Call existing callback\n       *   2. Cleanup DOM\n       */\n      img.onload = function () {\n        onLoadCallback();\n        div.parentNode.removeChild(div);\n        div = null;\n      };\n    },\n\n    /**\n     * Creates corresponding fabric instances from their object representations\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} objects Objects to enliven\n     * @param {Function} callback Callback to invoke when all objects are created\n     * @param {String} namespace Namespace to get klass \"Class\" object from\n     * @param {Function} reviver Method for further parsing of object elements,\n     * called after each fabric object created.\n     */\n    enlivenObjects: function(objects, callback, namespace, reviver) {\n      objects = objects || [];\n\n      var enlivenedObjects = [],\n          numLoadedObjects = 0,\n          numTotalObjects = objects.length;\n\n      function onLoaded() {\n        if (++numLoadedObjects === numTotalObjects) {\n          callback && callback(enlivenedObjects.filter(function(obj) {\n            // filter out undefined objects (objects that gave error)\n            return obj;\n          }));\n        }\n      }\n\n      if (!numTotalObjects) {\n        callback && callback(enlivenedObjects);\n        return;\n      }\n\n      objects.forEach(function (o, index) {\n        // if sparse array\n        if (!o || !o.type) {\n          onLoaded();\n          return;\n        }\n        var klass = fabric.util.getKlass(o.type, namespace);\n        klass.fromObject(o, function (obj, error) {\n          error || (enlivenedObjects[index] = obj);\n          reviver && reviver(o, obj, error);\n          onLoaded();\n        });\n      });\n    },\n\n    /**\n     * Create and wait for loading of patterns\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} patterns Objects to enliven\n     * @param {Function} callback Callback to invoke when all objects are created\n     * called after each fabric object created.\n     */\n    enlivenPatterns: function(patterns, callback) {\n      patterns = patterns || [];\n\n      function onLoaded() {\n        if (++numLoadedPatterns === numPatterns) {\n          callback && callback(enlivenedPatterns);\n        }\n      }\n\n      var enlivenedPatterns = [],\n          numLoadedPatterns = 0,\n          numPatterns = patterns.length;\n\n      if (!numPatterns) {\n        callback && callback(enlivenedPatterns);\n        return;\n      }\n\n      patterns.forEach(function (p, index) {\n        if (p && p.source) {\n          new fabric.Pattern(p, function(pattern) {\n            enlivenedPatterns[index] = pattern;\n            onLoaded();\n          });\n        }\n        else {\n          enlivenedPatterns[index] = p;\n          onLoaded();\n        }\n      });\n    },\n\n    /**\n     * Groups SVG elements (usually those retrieved from SVG document)\n     * @static\n     * @memberOf fabric.util\n     * @param {Array} elements SVG elements to group\n     * @param {Object} [options] Options object\n     * @param {String} path Value to set sourcePath to\n     * @return {fabric.Object|fabric.Group}\n     */\n    groupSVGElements: function(elements, options, path) {\n      var object;\n      if (elements && elements.length === 1) {\n        return elements[0];\n      }\n      if (options) {\n        if (options.width && options.height) {\n          options.centerPoint = {\n            x: options.width / 2,\n            y: options.height / 2\n          };\n        }\n        else {\n          delete options.width;\n          delete options.height;\n        }\n      }\n      object = new fabric.Group(elements, options);\n      if (typeof path !== 'undefined') {\n        object.sourcePath = path;\n      }\n      return object;\n    },\n\n    /**\n     * Populates an object with properties of another object\n     * @static\n     * @memberOf fabric.util\n     * @param {Object} source Source object\n     * @param {Object} destination Destination object\n     * @return {Array} properties Properties names to include\n     */\n    populateWithProperties: function(source, destination, properties) {\n      if (properties && Object.prototype.toString.call(properties) === '[object Array]') {\n        for (var i = 0, len = properties.length; i < len; i++) {\n          if (properties[i] in source) {\n            destination[properties[i]] = source[properties[i]];\n          }\n        }\n      }\n    },\n\n    /**\n     * Draws a dashed line between two points\n     *\n     * This method is used to draw dashed line around selection area.\n     * See <a href=\"http://stackoverflow.com/questions/4576724/dotted-stroke-in-canvas\">dotted stroke in canvas</a>\n     *\n     * @param {CanvasRenderingContext2D} ctx context\n     * @param {Number} x  start x coordinate\n     * @param {Number} y start y coordinate\n     * @param {Number} x2 end x coordinate\n     * @param {Number} y2 end y coordinate\n     * @param {Array} da dash array pattern\n     */\n    drawDashedLine: function(ctx, x, y, x2, y2, da) {\n      var dx = x2 - x,\n          dy = y2 - y,\n          len = sqrt(dx * dx + dy * dy),\n          rot = atan2(dy, dx),\n          dc = da.length,\n          di = 0,\n          draw = true;\n\n      ctx.save();\n      ctx.translate(x, y);\n      ctx.moveTo(0, 0);\n      ctx.rotate(rot);\n\n      x = 0;\n      while (len > x) {\n        x += da[di++ % dc];\n        if (x > len) {\n          x = len;\n        }\n        ctx[draw ? 'lineTo' : 'moveTo'](x, 0);\n        draw = !draw;\n      }\n\n      ctx.restore();\n    },\n\n    /**\n     * Creates canvas element\n     * @static\n     * @memberOf fabric.util\n     * @return {CanvasElement} initialized canvas element\n     */\n    createCanvasElement: function() {\n      return fabric.document.createElement('canvas');\n    },\n\n    /**\n     * Creates a canvas element that is a copy of another and is also painted\n     * @param {CanvasElement} canvas to copy size and content of\n     * @static\n     * @memberOf fabric.util\n     * @return {CanvasElement} initialized canvas element\n     */\n    copyCanvasElement: function(canvas) {\n      var newCanvas = fabric.util.createCanvasElement();\n      newCanvas.width = canvas.width;\n      newCanvas.height = canvas.height;\n      newCanvas.getContext('2d').drawImage(canvas, 0, 0);\n      return newCanvas;\n    },\n\n    /**\n     * since 2.6.0 moved from canvas instance to utility.\n     * @param {CanvasElement} canvasEl to copy size and content of\n     * @param {String} format 'jpeg' or 'png', in some browsers 'webp' is ok too\n     * @param {Number} quality <= 1 and > 0\n     * @static\n     * @memberOf fabric.util\n     * @return {String} data url\n     */\n    toDataURL: function(canvasEl, format, quality) {\n      return canvasEl.toDataURL('image/' + format, quality);\n    },\n\n    /**\n     * Creates image element (works on client and node)\n     * @static\n     * @memberOf fabric.util\n     * @return {HTMLImageElement} HTML image element\n     */\n    createImage: function() {\n      return fabric.document.createElement('img');\n    },\n\n    /**\n     * @static\n     * @memberOf fabric.util\n     * @deprecated since 2.0.0\n     * @param {fabric.Object} receiver Object implementing `clipTo` method\n     * @param {CanvasRenderingContext2D} ctx Context to clip\n     */\n    clipContext: function(receiver, ctx) {\n      ctx.save();\n      ctx.beginPath();\n      receiver.clipTo(ctx);\n      ctx.clip();\n    },\n\n    /**\n     * Multiply matrix A by matrix B to nest transformations\n     * @static\n     * @memberOf fabric.util\n     * @param  {Array} a First transformMatrix\n     * @param  {Array} b Second transformMatrix\n     * @param  {Boolean} is2x2 flag to multiply matrices as 2x2 matrices\n     * @return {Array} The product of the two transform matrices\n     */\n    multiplyTransformMatrices: function(a, b, is2x2) {\n      // Matrix multiply a * b\n      return [\n        a[0] * b[0] + a[2] * b[1],\n        a[1] * b[0] + a[3] * b[1],\n        a[0] * b[2] + a[2] * b[3],\n        a[1] * b[2] + a[3] * b[3],\n        is2x2 ? 0 : a[0] * b[4] + a[2] * b[5] + a[4],\n        is2x2 ? 0 : a[1] * b[4] + a[3] * b[5] + a[5]\n      ];\n    },\n\n    /**\n     * Decomposes standard 2x3 matrix into transform components\n     * @static\n     * @memberOf fabric.util\n     * @param  {Array} a transformMatrix\n     * @return {Object} Components of transform\n     */\n    qrDecompose: function(a) {\n      var angle = atan2(a[1], a[0]),\n          denom = pow(a[0], 2) + pow(a[1], 2),\n          scaleX = sqrt(denom),\n          scaleY = (a[0] * a[3] - a[2] * a [1]) / scaleX,\n          skewX = atan2(a[0] * a[2] + a[1] * a [3], denom);\n      return {\n        angle: angle  / PiBy180,\n        scaleX: scaleX,\n        scaleY: scaleY,\n        skewX: skewX / PiBy180,\n        skewY: 0,\n        translateX: a[4],\n        translateY: a[5]\n      };\n    },\n\n    /**\n     * Returns a transform matrix starting from an object of the same kind of\n     * the one returned from qrDecompose, useful also if you want to calculate some\n     * transformations from an object that is not enlived yet\n     * @static\n     * @memberOf fabric.util\n     * @param  {Object} options\n     * @param  {Number} [options.angle] angle in degrees\n     * @return {Number[]} transform matrix\n     */\n    calcRotateMatrix: function(options) {\n      if (!options.angle) {\n        return fabric.iMatrix.concat();\n      }\n      var theta = fabric.util.degreesToRadians(options.angle),\n          cos = fabric.util.cos(theta),\n          sin = fabric.util.sin(theta);\n      return [cos, sin, -sin, cos, 0, 0];\n    },\n\n    /**\n     * Returns a transform matrix starting from an object of the same kind of\n     * the one returned from qrDecompose, useful also if you want to calculate some\n     * transformations from an object that is not enlived yet.\n     * is called DimensionsTransformMatrix because those properties are the one that influence\n     * the size of the resulting box of the object.\n     * @static\n     * @memberOf fabric.util\n     * @param  {Object} options\n     * @param  {Number} [options.scaleX]\n     * @param  {Number} [options.scaleY]\n     * @param  {Boolean} [options.flipX]\n     * @param  {Boolean} [options.flipY]\n     * @param  {Number} [options.skewX]\n     * @param  {Number} [options.skewX]\n     * @return {Number[]} transform matrix\n     */\n    calcDimensionsMatrix: function(options) {\n      var scaleX = typeof options.scaleX === 'undefined' ? 1 : options.scaleX,\n          scaleY = typeof options.scaleY === 'undefined' ? 1 : options.scaleY,\n          scaleMatrix = [\n            options.flipX ? -scaleX : scaleX,\n            0,\n            0,\n            options.flipY ? -scaleY : scaleY,\n            0,\n            0],\n          multiply = fabric.util.multiplyTransformMatrices,\n          degreesToRadians = fabric.util.degreesToRadians;\n      if (options.skewX) {\n        scaleMatrix = multiply(\n          scaleMatrix,\n          [1, 0, Math.tan(degreesToRadians(options.skewX)), 1],\n          true);\n      }\n      if (options.skewY) {\n        scaleMatrix = multiply(\n          scaleMatrix,\n          [1, Math.tan(degreesToRadians(options.skewY)), 0, 1],\n          true);\n      }\n      return scaleMatrix;\n    },\n\n    /**\n     * Returns a transform matrix starting from an object of the same kind of\n     * the one returned from qrDecompose, useful also if you want to calculate some\n     * transformations from an object that is not enlived yet\n     * @static\n     * @memberOf fabric.util\n     * @param  {Object} options\n     * @param  {Number} [options.angle]\n     * @param  {Number} [options.scaleX]\n     * @param  {Number} [options.scaleY]\n     * @param  {Boolean} [options.flipX]\n     * @param  {Boolean} [options.flipY]\n     * @param  {Number} [options.skewX]\n     * @param  {Number} [options.skewX]\n     * @param  {Number} [options.translateX]\n     * @param  {Number} [options.translateY]\n     * @return {Number[]} transform matrix\n     */\n    composeMatrix: function(options) {\n      var matrix = [1, 0, 0, 1, options.translateX || 0, options.translateY || 0],\n          multiply = fabric.util.multiplyTransformMatrices;\n      if (options.angle) {\n        matrix = multiply(matrix, fabric.util.calcRotateMatrix(options));\n      }\n      if (options.scaleX || options.scaleY || options.skewX || options.skewY || options.flipX || options.flipY) {\n        matrix = multiply(matrix, fabric.util.calcDimensionsMatrix(options));\n      }\n      return matrix;\n    },\n\n    /**\n     * Returns a transform matrix that has the same effect of scaleX, scaleY and skewX.\n     * Is deprecated for composeMatrix. Please do not use it.\n     * @static\n     * @deprecated since 3.4.0\n     * @memberOf fabric.util\n     * @param  {Number} scaleX\n     * @param  {Number} scaleY\n     * @param  {Number} skewX\n     * @return {Number[]} transform matrix\n     */\n    customTransformMatrix: function(scaleX, scaleY, skewX) {\n      return fabric.util.composeMatrix({ scaleX: scaleX, scaleY: scaleY, skewX: skewX });\n    },\n\n    /**\n     * reset an object transform state to neutral. Top and left are not accounted for\n     * @static\n     * @memberOf fabric.util\n     * @param  {fabric.Object} target object to transform\n     */\n    resetObjectTransform: function (target) {\n      target.scaleX = 1;\n      target.scaleY = 1;\n      target.skewX = 0;\n      target.skewY = 0;\n      target.flipX = false;\n      target.flipY = false;\n      target.rotate(0);\n    },\n\n    /**\n     * Extract Object transform values\n     * @static\n     * @memberOf fabric.util\n     * @param  {fabric.Object} target object to read from\n     * @return {Object} Components of transform\n     */\n    saveObjectTransform: function (target) {\n      return {\n        scaleX: target.scaleX,\n        scaleY: target.scaleY,\n        skewX: target.skewX,\n        skewY: target.skewY,\n        angle: target.angle,\n        left: target.left,\n        flipX: target.flipX,\n        flipY: target.flipY,\n        top: target.top\n      };\n    },\n\n    /**\n     * Returns string representation of function body\n     * @param {Function} fn Function to get body of\n     * @return {String} Function body\n     */\n    getFunctionBody: function(fn) {\n      return (String(fn).match(/function[^{]*\\{([\\s\\S]*)\\}/) || {})[1];\n    },\n\n    /**\n     * Returns true if context has transparent pixel\n     * at specified location (taking tolerance into account)\n     * @param {CanvasRenderingContext2D} ctx context\n     * @param {Number} x x coordinate\n     * @param {Number} y y coordinate\n     * @param {Number} tolerance Tolerance\n     */\n    isTransparent: function(ctx, x, y, tolerance) {\n\n      // If tolerance is > 0 adjust start coords to take into account.\n      // If moves off Canvas fix to 0\n      if (tolerance > 0) {\n        if (x > tolerance) {\n          x -= tolerance;\n        }\n        else {\n          x = 0;\n        }\n        if (y > tolerance) {\n          y -= tolerance;\n        }\n        else {\n          y = 0;\n        }\n      }\n\n      var _isTransparent = true, i, temp,\n          imageData = ctx.getImageData(x, y, (tolerance * 2) || 1, (tolerance * 2) || 1),\n          l = imageData.data.length;\n\n      // Split image data - for tolerance > 1, pixelDataSize = 4;\n      for (i = 3; i < l; i += 4) {\n        temp = imageData.data[i];\n        _isTransparent = temp <= 0;\n        if (_isTransparent === false) {\n          break; // Stop if colour found\n        }\n      }\n\n      imageData = null;\n\n      return _isTransparent;\n    },\n\n    /**\n     * Parse preserveAspectRatio attribute from element\n     * @param {string} attribute to be parsed\n     * @return {Object} an object containing align and meetOrSlice attribute\n     */\n    parsePreserveAspectRatioAttribute: function(attribute) {\n      var meetOrSlice = 'meet', alignX = 'Mid', alignY = 'Mid',\n          aspectRatioAttrs = attribute.split(' '), align;\n\n      if (aspectRatioAttrs && aspectRatioAttrs.length) {\n        meetOrSlice = aspectRatioAttrs.pop();\n        if (meetOrSlice !== 'meet' && meetOrSlice !== 'slice') {\n          align = meetOrSlice;\n          meetOrSlice = 'meet';\n        }\n        else if (aspectRatioAttrs.length) {\n          align = aspectRatioAttrs.pop();\n        }\n      }\n      //divide align in alignX and alignY\n      alignX = align !== 'none' ? align.slice(1, 4) : 'none';\n      alignY = align !== 'none' ? align.slice(5, 8) : 'none';\n      return {\n        meetOrSlice: meetOrSlice,\n        alignX: alignX,\n        alignY: alignY\n      };\n    },\n\n    /**\n     * Clear char widths cache for the given font family or all the cache if no\n     * fontFamily is specified.\n     * Use it if you know you are loading fonts in a lazy way and you are not waiting\n     * for custom fonts to load properly when adding text objects to the canvas.\n     * If a text object is added when its own font is not loaded yet, you will get wrong\n     * measurement and so wrong bounding boxes.\n     * After the font cache is cleared, either change the textObject text content or call\n     * initDimensions() to trigger a recalculation\n     * @memberOf fabric.util\n     * @param {String} [fontFamily] font family to clear\n     */\n    clearFabricFontCache: function(fontFamily) {\n      fontFamily = (fontFamily || '').toLowerCase();\n      if (!fontFamily) {\n        fabric.charWidthsCache = { };\n      }\n      else if (fabric.charWidthsCache[fontFamily]) {\n        delete fabric.charWidthsCache[fontFamily];\n      }\n    },\n\n    /**\n     * Given current aspect ratio, determines the max width and height that can\n     * respect the total allowed area for the cache.\n     * @memberOf fabric.util\n     * @param {Number} ar aspect ratio\n     * @param {Number} maximumArea Maximum area you want to achieve\n     * @return {Object.x} Limited dimensions by X\n     * @return {Object.y} Limited dimensions by Y\n     */\n    limitDimsByArea: function(ar, maximumArea) {\n      var roughWidth = Math.sqrt(maximumArea * ar),\n          perfLimitSizeY = Math.floor(maximumArea / roughWidth);\n      return { x: Math.floor(roughWidth), y: perfLimitSizeY };\n    },\n\n    capValue: function(min, value, max) {\n      return Math.max(min, Math.min(value, max));\n    },\n\n    /**\n     * Finds the scale for the object source to fit inside the object destination,\n     * keeping aspect ratio intact.\n     * respect the total allowed area for the cache.\n     * @memberOf fabric.util\n     * @param {Object | fabric.Object} source\n     * @param {Number} source.height natural unscaled height of the object\n     * @param {Number} source.width natural unscaled width of the object\n     * @param {Object | fabric.Object} destination\n     * @param {Number} destination.height natural unscaled height of the object\n     * @param {Number} destination.width natural unscaled width of the object\n     * @return {Number} scale factor to apply to source to fit into destination\n     */\n    findScaleToFit: function(source, destination) {\n      return Math.min(destination.width / source.width, destination.height / source.height);\n    },\n\n    /**\n     * Finds the scale for the object source to cover entirely the object destination,\n     * keeping aspect ratio intact.\n     * respect the total allowed area for the cache.\n     * @memberOf fabric.util\n     * @param {Object | fabric.Object} source\n     * @param {Number} source.height natural unscaled height of the object\n     * @param {Number} source.width natural unscaled width of the object\n     * @param {Object | fabric.Object} destination\n     * @param {Number} destination.height natural unscaled height of the object\n     * @param {Number} destination.width natural unscaled width of the object\n     * @return {Number} scale factor to apply to source to cover destination\n     */\n    findScaleToCover: function(source, destination) {\n      return Math.max(destination.width / source.width, destination.height / source.height);\n    },\n\n    /**\n     * given an array of 6 number returns something like `\"matrix(...numbers)\"`\n     * @memberOf fabric.util\n     * @param {Array} trasnform an array with 6 numbers\n     * @return {String} transform matrix for svg\n     * @return {Object.y} Limited dimensions by Y\n     */\n    matrixToSVG: function(transform) {\n      return 'matrix(' + transform.map(function(value) {\n        return fabric.util.toFixed(value, fabric.Object.NUM_FRACTION_DIGITS);\n      }).join(' ') + ')';\n    }\n  };\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n\n  var _join = Array.prototype.join;\n\n  /* Adapted from http://dxr.mozilla.org/mozilla-central/source/content/svg/content/src/nsSVGPathDataParser.cpp\n   * by Andrea Bogazzi code is under MPL. if you don't have a copy of the license you can take it here\n   * http://mozilla.org/MPL/2.0/\n   */\n  function arcToSegments(toX, toY, rx, ry, large, sweep, rotateX) {\n    var argsString = _join.call(arguments);\n    if (fabric.arcToSegmentsCache[argsString]) {\n      return fabric.arcToSegmentsCache[argsString];\n    }\n\n    var PI = Math.PI, th = rotateX * PI / 180,\n        sinTh = fabric.util.sin(th),\n        cosTh = fabric.util.cos(th),\n        fromX = 0, fromY = 0;\n\n    rx = Math.abs(rx);\n    ry = Math.abs(ry);\n\n    var px = -cosTh * toX * 0.5 - sinTh * toY * 0.5,\n        py = -cosTh * toY * 0.5 + sinTh * toX * 0.5,\n        rx2 = rx * rx, ry2 = ry * ry, py2 = py * py, px2 = px * px,\n        pl = rx2 * ry2 - rx2 * py2 - ry2 * px2,\n        root = 0;\n\n    if (pl < 0) {\n      var s = Math.sqrt(1 - pl / (rx2 * ry2));\n      rx *= s;\n      ry *= s;\n    }\n    else {\n      root = (large === sweep ? -1.0 : 1.0) *\n              Math.sqrt( pl / (rx2 * py2 + ry2 * px2));\n    }\n\n    var cx = root * rx * py / ry,\n        cy = -root * ry * px / rx,\n        cx1 = cosTh * cx - sinTh * cy + toX * 0.5,\n        cy1 = sinTh * cx + cosTh * cy + toY * 0.5,\n        mTheta = calcVectorAngle(1, 0, (px - cx) / rx, (py - cy) / ry),\n        dtheta = calcVectorAngle((px - cx) / rx, (py - cy) / ry, (-px - cx) / rx, (-py - cy) / ry);\n\n    if (sweep === 0 && dtheta > 0) {\n      dtheta -= 2 * PI;\n    }\n    else if (sweep === 1 && dtheta < 0) {\n      dtheta += 2 * PI;\n    }\n\n    // Convert into cubic bezier segments <= 90deg\n    var segments = Math.ceil(Math.abs(dtheta / PI * 2)),\n        result = [], mDelta = dtheta / segments,\n        mT = 8 / 3 * Math.sin(mDelta / 4) * Math.sin(mDelta / 4) / Math.sin(mDelta / 2),\n        th3 = mTheta + mDelta;\n\n    for (var i = 0; i < segments; i++) {\n      result[i] = segmentToBezier(mTheta, th3, cosTh, sinTh, rx, ry, cx1, cy1, mT, fromX, fromY);\n      fromX = result[i][4];\n      fromY = result[i][5];\n      mTheta = th3;\n      th3 += mDelta;\n    }\n    fabric.arcToSegmentsCache[argsString] = result;\n    return result;\n  }\n\n  function segmentToBezier(th2, th3, cosTh, sinTh, rx, ry, cx1, cy1, mT, fromX, fromY) {\n    var costh2 = fabric.util.cos(th2),\n        sinth2 = fabric.util.sin(th2),\n        costh3 = fabric.util.cos(th3),\n        sinth3 = fabric.util.sin(th3),\n        toX = cosTh * rx * costh3 - sinTh * ry * sinth3 + cx1,\n        toY = sinTh * rx * costh3 + cosTh * ry * sinth3 + cy1,\n        cp1X = fromX + mT * ( -cosTh * rx * sinth2 - sinTh * ry * costh2),\n        cp1Y = fromY + mT * ( -sinTh * rx * sinth2 + cosTh * ry * costh2),\n        cp2X = toX + mT * ( cosTh * rx * sinth3 + sinTh * ry * costh3),\n        cp2Y = toY + mT * ( sinTh * rx * sinth3 - cosTh * ry * costh3);\n\n    return [\n      cp1X, cp1Y,\n      cp2X, cp2Y,\n      toX, toY\n    ];\n  }\n\n  /*\n   * Private\n   */\n  function calcVectorAngle(ux, uy, vx, vy) {\n    var ta = Math.atan2(uy, ux),\n        tb = Math.atan2(vy, vx);\n    if (tb >= ta) {\n      return tb - ta;\n    }\n    else {\n      return 2 * Math.PI - (ta - tb);\n    }\n  }\n\n  /**\n   * Draws arc\n   * @param {CanvasRenderingContext2D} ctx\n   * @param {Number} fx\n   * @param {Number} fy\n   * @param {Array} coords\n   */\n  fabric.util.drawArc = function(ctx, fx, fy, coords) {\n    var rx = coords[0],\n        ry = coords[1],\n        rot = coords[2],\n        large = coords[3],\n        sweep = coords[4],\n        tx = coords[5],\n        ty = coords[6],\n        segs = [[], [], [], []],\n        segsNorm = arcToSegments(tx - fx, ty - fy, rx, ry, large, sweep, rot);\n\n    for (var i = 0, len = segsNorm.length; i < len; i++) {\n      segs[i][0] = segsNorm[i][0] + fx;\n      segs[i][1] = segsNorm[i][1] + fy;\n      segs[i][2] = segsNorm[i][2] + fx;\n      segs[i][3] = segsNorm[i][3] + fy;\n      segs[i][4] = segsNorm[i][4] + fx;\n      segs[i][5] = segsNorm[i][5] + fy;\n      ctx.bezierCurveTo.apply(ctx, segs[i]);\n    }\n  };\n\n  /**\n   * Calculate bounding box of a elliptic-arc\n   * @param {Number} fx start point of arc\n   * @param {Number} fy\n   * @param {Number} rx horizontal radius\n   * @param {Number} ry vertical radius\n   * @param {Number} rot angle of horizontal axe\n   * @param {Number} large 1 or 0, whatever the arc is the big or the small on the 2 points\n   * @param {Number} sweep 1 or 0, 1 clockwise or counterclockwise direction\n   * @param {Number} tx end point of arc\n   * @param {Number} ty\n   */\n  fabric.util.getBoundsOfArc = function(fx, fy, rx, ry, rot, large, sweep, tx, ty) {\n\n    var fromX = 0, fromY = 0, bound, bounds = [],\n        segs = arcToSegments(tx - fx, ty - fy, rx, ry, large, sweep, rot);\n\n    for (var i = 0, len = segs.length; i < len; i++) {\n      bound = getBoundsOfCurve(fromX, fromY, segs[i][0], segs[i][1], segs[i][2], segs[i][3], segs[i][4], segs[i][5]);\n      bounds.push({ x: bound[0].x + fx, y: bound[0].y + fy });\n      bounds.push({ x: bound[1].x + fx, y: bound[1].y + fy });\n      fromX = segs[i][4];\n      fromY = segs[i][5];\n    }\n    return bounds;\n  };\n\n  /**\n   * Calculate bounding box of a beziercurve\n   * @param {Number} x0 starting point\n   * @param {Number} y0\n   * @param {Number} x1 first control point\n   * @param {Number} y1\n   * @param {Number} x2 secondo control point\n   * @param {Number} y2\n   * @param {Number} x3 end of beizer\n   * @param {Number} y3\n   */\n  // taken from http://jsbin.com/ivomiq/56/edit  no credits available for that.\n  function getBoundsOfCurve(x0, y0, x1, y1, x2, y2, x3, y3) {\n    var argsString;\n    if (fabric.cachesBoundsOfCurve) {\n      argsString = _join.call(arguments);\n      if (fabric.boundsOfCurveCache[argsString]) {\n        return fabric.boundsOfCurveCache[argsString];\n      }\n    }\n\n    var sqrt = Math.sqrt,\n        min = Math.min, max = Math.max,\n        abs = Math.abs, tvalues = [],\n        bounds = [[], []],\n        a, b, c, t, t1, t2, b2ac, sqrtb2ac;\n\n    b = 6 * x0 - 12 * x1 + 6 * x2;\n    a = -3 * x0 + 9 * x1 - 9 * x2 + 3 * x3;\n    c = 3 * x1 - 3 * x0;\n\n    for (var i = 0; i < 2; ++i) {\n      if (i > 0) {\n        b = 6 * y0 - 12 * y1 + 6 * y2;\n        a = -3 * y0 + 9 * y1 - 9 * y2 + 3 * y3;\n        c = 3 * y1 - 3 * y0;\n      }\n\n      if (abs(a) < 1e-12) {\n        if (abs(b) < 1e-12) {\n          continue;\n        }\n        t = -c / b;\n        if (0 < t && t < 1) {\n          tvalues.push(t);\n        }\n        continue;\n      }\n      b2ac = b * b - 4 * c * a;\n      if (b2ac < 0) {\n        continue;\n      }\n      sqrtb2ac = sqrt(b2ac);\n      t1 = (-b + sqrtb2ac) / (2 * a);\n      if (0 < t1 && t1 < 1) {\n        tvalues.push(t1);\n      }\n      t2 = (-b - sqrtb2ac) / (2 * a);\n      if (0 < t2 && t2 < 1) {\n        tvalues.push(t2);\n      }\n    }\n\n    var x, y, j = tvalues.length, jlen = j, mt;\n    while (j--) {\n      t = tvalues[j];\n      mt = 1 - t;\n      x = (mt * mt * mt * x0) + (3 * mt * mt * t * x1) + (3 * mt * t * t * x2) + (t * t * t * x3);\n      bounds[0][j] = x;\n\n      y = (mt * mt * mt * y0) + (3 * mt * mt * t * y1) + (3 * mt * t * t * y2) + (t * t * t * y3);\n      bounds[1][j] = y;\n    }\n\n    bounds[0][jlen] = x0;\n    bounds[1][jlen] = y0;\n    bounds[0][jlen + 1] = x3;\n    bounds[1][jlen + 1] = y3;\n    var result = [\n      {\n        x: min.apply(null, bounds[0]),\n        y: min.apply(null, bounds[1])\n      },\n      {\n        x: max.apply(null, bounds[0]),\n        y: max.apply(null, bounds[1])\n      }\n    ];\n    if (fabric.cachesBoundsOfCurve) {\n      fabric.boundsOfCurveCache[argsString] = result;\n    }\n    return result;\n  }\n\n  fabric.util.getBoundsOfCurve = getBoundsOfCurve;\n\n})();\n\n\n(function() {\n\n  var slice = Array.prototype.slice;\n\n  /**\n   * Invokes method on all items in a given array\n   * @memberOf fabric.util.array\n   * @param {Array} array Array to iterate over\n   * @param {String} method Name of a method to invoke\n   * @return {Array}\n   */\n  function invoke(array, method) {\n    var args = slice.call(arguments, 2), result = [];\n    for (var i = 0, len = array.length; i < len; i++) {\n      result[i] = args.length ? array[i][method].apply(array[i], args) : array[i][method].call(array[i]);\n    }\n    return result;\n  }\n\n  /**\n   * Finds maximum value in array (not necessarily \"first\" one)\n   * @memberOf fabric.util.array\n   * @param {Array} array Array to iterate over\n   * @param {String} byProperty\n   * @return {*}\n   */\n  function max(array, byProperty) {\n    return find(array, byProperty, function(value1, value2) {\n      return value1 >= value2;\n    });\n  }\n\n  /**\n   * Finds minimum value in array (not necessarily \"first\" one)\n   * @memberOf fabric.util.array\n   * @param {Array} array Array to iterate over\n   * @param {String} byProperty\n   * @return {*}\n   */\n  function min(array, byProperty) {\n    return find(array, byProperty, function(value1, value2) {\n      return value1 < value2;\n    });\n  }\n\n  /**\n   * @private\n   */\n  function fill(array, value) {\n    var k = array.length;\n    while (k--) {\n      array[k] = value;\n    }\n    return array;\n  }\n\n  /**\n   * @private\n   */\n  function find(array, byProperty, condition) {\n    if (!array || array.length === 0) {\n      return;\n    }\n\n    var i = array.length - 1,\n        result = byProperty ? array[i][byProperty] : array[i];\n    if (byProperty) {\n      while (i--) {\n        if (condition(array[i][byProperty], result)) {\n          result = array[i][byProperty];\n        }\n      }\n    }\n    else {\n      while (i--) {\n        if (condition(array[i], result)) {\n          result = array[i];\n        }\n      }\n    }\n    return result;\n  }\n\n  /**\n   * @namespace fabric.util.array\n   */\n  fabric.util.array = {\n    fill: fill,\n    invoke: invoke,\n    min: min,\n    max: max\n  };\n\n})();\n\n\n(function() {\n  /**\n   * Copies all enumerable properties of one js object to another\n   * this does not and cannot compete with generic utils.\n   * Does not clone or extend fabric.Object subclasses.\n   * This is mostly for internal use and has extra handling for fabricJS objects\n   * it skips the canvas property in deep cloning.\n   * @memberOf fabric.util.object\n   * @param {Object} destination Where to copy to\n   * @param {Object} source Where to copy from\n   * @return {Object}\n   */\n\n  function extend(destination, source, deep) {\n    // JScript DontEnum bug is not taken care of\n    // the deep clone is for internal use, is not meant to avoid\n    // javascript traps or cloning html element or self referenced objects.\n    if (deep) {\n      if (!fabric.isLikelyNode && source instanceof Element) {\n        // avoid cloning deep images, canvases,\n        destination = source;\n      }\n      else if (source instanceof Array) {\n        destination = [];\n        for (var i = 0, len = source.length; i < len; i++) {\n          destination[i] = extend({ }, source[i], deep);\n        }\n      }\n      else if (source && typeof source === 'object') {\n        for (var property in source) {\n          if (property === 'canvas') {\n            destination[property] = extend({ }, source[property]);\n          }\n          else if (source.hasOwnProperty(property)) {\n            destination[property] = extend({ }, source[property], deep);\n          }\n        }\n      }\n      else {\n        // this sounds odd for an extend but is ok for recursive use\n        destination = source;\n      }\n    }\n    else {\n      for (var property in source) {\n        destination[property] = source[property];\n      }\n    }\n    return destination;\n  }\n\n  /**\n   * Creates an empty object and copies all enumerable properties of another object to it\n   * @memberOf fabric.util.object\n   * TODO: this function return an empty object if you try to clone null\n   * @param {Object} object Object to clone\n   * @return {Object}\n   */\n  function clone(object, deep) {\n    return extend({ }, object, deep);\n  }\n\n  /** @namespace fabric.util.object */\n  fabric.util.object = {\n    extend: extend,\n    clone: clone\n  };\n  fabric.util.object.extend(fabric.util, fabric.Observable);\n})();\n\n\n(function() {\n\n  /**\n   * Camelizes a string\n   * @memberOf fabric.util.string\n   * @param {String} string String to camelize\n   * @return {String} Camelized version of a string\n   */\n  function camelize(string) {\n    return string.replace(/-+(.)?/g, function(match, character) {\n      return character ? character.toUpperCase() : '';\n    });\n  }\n\n  /**\n   * Capitalizes a string\n   * @memberOf fabric.util.string\n   * @param {String} string String to capitalize\n   * @param {Boolean} [firstLetterOnly] If true only first letter is capitalized\n   * and other letters stay untouched, if false first letter is capitalized\n   * and other letters are converted to lowercase.\n   * @return {String} Capitalized version of a string\n   */\n  function capitalize(string, firstLetterOnly) {\n    return string.charAt(0).toUpperCase() +\n      (firstLetterOnly ? string.slice(1) : string.slice(1).toLowerCase());\n  }\n\n  /**\n   * Escapes XML in a string\n   * @memberOf fabric.util.string\n   * @param {String} string String to escape\n   * @return {String} Escaped version of a string\n   */\n  function escapeXml(string) {\n    return string.replace(/&/g, '&amp;')\n      .replace(/\"/g, '&quot;')\n      .replace(/'/g, '&apos;')\n      .replace(/</g, '&lt;')\n      .replace(/>/g, '&gt;');\n  }\n\n  /**\n   * Divide a string in the user perceived single units\n   * @memberOf fabric.util.string\n   * @param {String} textstring String to escape\n   * @return {Array} array containing the graphemes\n   */\n  function graphemeSplit(textstring) {\n    var i = 0, chr, graphemes = [];\n    for (i = 0, chr; i < textstring.length; i++) {\n      if ((chr = getWholeChar(textstring, i)) === false) {\n        continue;\n      }\n      graphemes.push(chr);\n    }\n    return graphemes;\n  }\n\n  // taken from mdn in the charAt doc page.\n  function getWholeChar(str, i) {\n    var code = str.charCodeAt(i);\n\n    if (isNaN(code)) {\n      return ''; // Position not found\n    }\n    if (code < 0xD800 || code > 0xDFFF) {\n      return str.charAt(i);\n    }\n\n    // High surrogate (could change last hex to 0xDB7F to treat high private\n    // surrogates as single characters)\n    if (0xD800 <= code && code <= 0xDBFF) {\n      if (str.length <= (i + 1)) {\n        throw 'High surrogate without following low surrogate';\n      }\n      var next = str.charCodeAt(i + 1);\n      if (0xDC00 > next || next > 0xDFFF) {\n        throw 'High surrogate without following low surrogate';\n      }\n      return str.charAt(i) + str.charAt(i + 1);\n    }\n    // Low surrogate (0xDC00 <= code && code <= 0xDFFF)\n    if (i === 0) {\n      throw 'Low surrogate without preceding high surrogate';\n    }\n    var prev = str.charCodeAt(i - 1);\n\n    // (could change last hex to 0xDB7F to treat high private\n    // surrogates as single characters)\n    if (0xD800 > prev || prev > 0xDBFF) {\n      throw 'Low surrogate without preceding high surrogate';\n    }\n    // We can pass over low surrogates now as the second component\n    // in a pair which we have already processed\n    return false;\n  }\n\n\n  /**\n   * String utilities\n   * @namespace fabric.util.string\n   */\n  fabric.util.string = {\n    camelize: camelize,\n    capitalize: capitalize,\n    escapeXml: escapeXml,\n    graphemeSplit: graphemeSplit\n  };\n})();\n\n\n(function() {\n\n  var slice = Array.prototype.slice, emptyFunction = function() { },\n\n      IS_DONTENUM_BUGGY = (function() {\n        for (var p in { toString: 1 }) {\n          if (p === 'toString') {\n            return false;\n          }\n        }\n        return true;\n      })(),\n\n      /** @ignore */\n      addMethods = function(klass, source, parent) {\n        for (var property in source) {\n\n          if (property in klass.prototype &&\n              typeof klass.prototype[property] === 'function' &&\n              (source[property] + '').indexOf('callSuper') > -1) {\n\n            klass.prototype[property] = (function(property) {\n              return function() {\n\n                var superclass = this.constructor.superclass;\n                this.constructor.superclass = parent;\n                var returnValue = source[property].apply(this, arguments);\n                this.constructor.superclass = superclass;\n\n                if (property !== 'initialize') {\n                  return returnValue;\n                }\n              };\n            })(property);\n          }\n          else {\n            klass.prototype[property] = source[property];\n          }\n\n          if (IS_DONTENUM_BUGGY) {\n            if (source.toString !== Object.prototype.toString) {\n              klass.prototype.toString = source.toString;\n            }\n            if (source.valueOf !== Object.prototype.valueOf) {\n              klass.prototype.valueOf = source.valueOf;\n            }\n          }\n        }\n      };\n\n  function Subclass() { }\n\n  function callSuper(methodName) {\n    var parentMethod = null,\n        _this = this;\n\n    // climb prototype chain to find method not equal to callee's method\n    while (_this.constructor.superclass) {\n      var superClassMethod = _this.constructor.superclass.prototype[methodName];\n      if (_this[methodName] !== superClassMethod) {\n        parentMethod = superClassMethod;\n        break;\n      }\n      // eslint-disable-next-line\n      _this = _this.constructor.superclass.prototype;\n    }\n\n    if (!parentMethod) {\n      return console.log('tried to callSuper ' + methodName + ', method not found in prototype chain', this);\n    }\n\n    return (arguments.length > 1)\n      ? parentMethod.apply(this, slice.call(arguments, 1))\n      : parentMethod.call(this);\n  }\n\n  /**\n   * Helper for creation of \"classes\".\n   * @memberOf fabric.util\n   * @param {Function} [parent] optional \"Class\" to inherit from\n   * @param {Object} [properties] Properties shared by all instances of this class\n   *                  (be careful modifying objects defined here as this would affect all instances)\n   */\n  function createClass() {\n    var parent = null,\n        properties = slice.call(arguments, 0);\n\n    if (typeof properties[0] === 'function') {\n      parent = properties.shift();\n    }\n    function klass() {\n      this.initialize.apply(this, arguments);\n    }\n\n    klass.superclass = parent;\n    klass.subclasses = [];\n\n    if (parent) {\n      Subclass.prototype = parent.prototype;\n      klass.prototype = new Subclass();\n      parent.subclasses.push(klass);\n    }\n    for (var i = 0, length = properties.length; i < length; i++) {\n      addMethods(klass, properties[i], parent);\n    }\n    if (!klass.prototype.initialize) {\n      klass.prototype.initialize = emptyFunction;\n    }\n    klass.prototype.constructor = klass;\n    klass.prototype.callSuper = callSuper;\n    return klass;\n  }\n\n  fabric.util.createClass = createClass;\n})();\n\n\n(function () {\n  // since ie10 or ie9 can use addEventListener but they do not support options, i need to check\n  var couldUseAttachEvent = !!fabric.document.createElement('div').attachEvent;\n  /**\n   * Adds an event listener to an element\n   * @function\n   * @memberOf fabric.util\n   * @param {HTMLElement} element\n   * @param {String} eventName\n   * @param {Function} handler\n   */\n  fabric.util.addListener = function(element, eventName, handler, options) {\n    element && element.addEventListener(eventName, handler, couldUseAttachEvent ? false : options);\n  };\n\n  /**\n   * Removes an event listener from an element\n   * @function\n   * @memberOf fabric.util\n   * @param {HTMLElement} element\n   * @param {String} eventName\n   * @param {Function} handler\n   */\n  fabric.util.removeListener = function(element, eventName, handler, options) {\n    element && element.removeEventListener(eventName, handler, couldUseAttachEvent ? false : options);\n  };\n\n  function getTouchInfo(event) {\n    var touchProp = event.changedTouches;\n    if (touchProp && touchProp[0]) {\n      return touchProp[0];\n    }\n    return event;\n  }\n\n  fabric.util.getPointer = function(event) {\n    var element = event.target,\n        scroll = fabric.util.getScrollLeftTop(element),\n        _evt = getTouchInfo(event);\n    return {\n      x: _evt.clientX + scroll.left,\n      y: _evt.clientY + scroll.top\n    };\n  };\n})();\n\n\n(function () {\n\n  /**\n   * Cross-browser wrapper for setting element's style\n   * @memberOf fabric.util\n   * @param {HTMLElement} element\n   * @param {Object} styles\n   * @return {HTMLElement} Element that was passed as a first argument\n   */\n  function setStyle(element, styles) {\n    var elementStyle = element.style;\n    if (!elementStyle) {\n      return element;\n    }\n    if (typeof styles === 'string') {\n      element.style.cssText += ';' + styles;\n      return styles.indexOf('opacity') > -1\n        ? setOpacity(element, styles.match(/opacity:\\s*(\\d?\\.?\\d*)/)[1])\n        : element;\n    }\n    for (var property in styles) {\n      if (property === 'opacity') {\n        setOpacity(element, styles[property]);\n      }\n      else {\n        var normalizedProperty = (property === 'float' || property === 'cssFloat')\n          ? (typeof elementStyle.styleFloat === 'undefined' ? 'cssFloat' : 'styleFloat')\n          : property;\n        elementStyle[normalizedProperty] = styles[property];\n      }\n    }\n    return element;\n  }\n\n  var parseEl = fabric.document.createElement('div'),\n      supportsOpacity = typeof parseEl.style.opacity === 'string',\n      supportsFilters = typeof parseEl.style.filter === 'string',\n      reOpacity = /alpha\\s*\\(\\s*opacity\\s*=\\s*([^\\)]+)\\)/,\n\n      /** @ignore */\n      setOpacity = function (element) { return element; };\n\n  if (supportsOpacity) {\n    /** @ignore */\n    setOpacity = function(element, value) {\n      element.style.opacity = value;\n      return element;\n    };\n  }\n  else if (supportsFilters) {\n    /** @ignore */\n    setOpacity = function(element, value) {\n      var es = element.style;\n      if (element.currentStyle && !element.currentStyle.hasLayout) {\n        es.zoom = 1;\n      }\n      if (reOpacity.test(es.filter)) {\n        value = value >= 0.9999 ? '' : ('alpha(opacity=' + (value * 100) + ')');\n        es.filter = es.filter.replace(reOpacity, value);\n      }\n      else {\n        es.filter += ' alpha(opacity=' + (value * 100) + ')';\n      }\n      return element;\n    };\n  }\n\n  fabric.util.setStyle = setStyle;\n\n})();\n\n\n(function() {\n\n  var _slice = Array.prototype.slice;\n\n  /**\n   * Takes id and returns an element with that id (if one exists in a document)\n   * @memberOf fabric.util\n   * @param {String|HTMLElement} id\n   * @return {HTMLElement|null}\n   */\n  function getById(id) {\n    return typeof id === 'string' ? fabric.document.getElementById(id) : id;\n  }\n\n  var sliceCanConvertNodelists,\n      /**\n       * Converts an array-like object (e.g. arguments or NodeList) to an array\n       * @memberOf fabric.util\n       * @param {Object} arrayLike\n       * @return {Array}\n       */\n      toArray = function(arrayLike) {\n        return _slice.call(arrayLike, 0);\n      };\n\n  try {\n    sliceCanConvertNodelists = toArray(fabric.document.childNodes) instanceof Array;\n  }\n  catch (err) { }\n\n  if (!sliceCanConvertNodelists) {\n    toArray = function(arrayLike) {\n      var arr = new Array(arrayLike.length), i = arrayLike.length;\n      while (i--) {\n        arr[i] = arrayLike[i];\n      }\n      return arr;\n    };\n  }\n\n  /**\n   * Creates specified element with specified attributes\n   * @memberOf fabric.util\n   * @param {String} tagName Type of an element to create\n   * @param {Object} [attributes] Attributes to set on an element\n   * @return {HTMLElement} Newly created element\n   */\n  function makeElement(tagName, attributes) {\n    var el = fabric.document.createElement(tagName);\n    for (var prop in attributes) {\n      if (prop === 'class') {\n        el.className = attributes[prop];\n      }\n      else if (prop === 'for') {\n        el.htmlFor = attributes[prop];\n      }\n      else {\n        el.setAttribute(prop, attributes[prop]);\n      }\n    }\n    return el;\n  }\n\n  /**\n   * Adds class to an element\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to add class to\n   * @param {String} className Class to add to an element\n   */\n  function addClass(element, className) {\n    if (element && (' ' + element.className + ' ').indexOf(' ' + className + ' ') === -1) {\n      element.className += (element.className ? ' ' : '') + className;\n    }\n  }\n\n  /**\n   * Wraps element with another element\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to wrap\n   * @param {HTMLElement|String} wrapper Element to wrap with\n   * @param {Object} [attributes] Attributes to set on a wrapper\n   * @return {HTMLElement} wrapper\n   */\n  function wrapElement(element, wrapper, attributes) {\n    if (typeof wrapper === 'string') {\n      wrapper = makeElement(wrapper, attributes);\n    }\n    if (element.parentNode) {\n      element.parentNode.replaceChild(wrapper, element);\n    }\n    wrapper.appendChild(element);\n    return wrapper;\n  }\n\n  /**\n   * Returns element scroll offsets\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to operate on\n   * @return {Object} Object with left/top values\n   */\n  function getScrollLeftTop(element) {\n\n    var left = 0,\n        top = 0,\n        docElement = fabric.document.documentElement,\n        body = fabric.document.body || {\n          scrollLeft: 0, scrollTop: 0\n        };\n\n    // While loop checks (and then sets element to) .parentNode OR .host\n    //  to account for ShadowDOM. We still want to traverse up out of ShadowDOM,\n    //  but the .parentNode of a root ShadowDOM node will always be null, instead\n    //  it should be accessed through .host. See http://stackoverflow.com/a/24765528/4383938\n    while (element && (element.parentNode || element.host)) {\n\n      // Set element to element parent, or 'host' in case of ShadowDOM\n      element = element.parentNode || element.host;\n\n      if (element === fabric.document) {\n        left = body.scrollLeft || docElement.scrollLeft || 0;\n        top = body.scrollTop ||  docElement.scrollTop || 0;\n      }\n      else {\n        left += element.scrollLeft || 0;\n        top += element.scrollTop || 0;\n      }\n\n      if (element.nodeType === 1 && element.style.position === 'fixed') {\n        break;\n      }\n    }\n\n    return { left: left, top: top };\n  }\n\n  /**\n   * Returns offset for a given element\n   * @function\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to get offset for\n   * @return {Object} Object with \"left\" and \"top\" properties\n   */\n  function getElementOffset(element) {\n    var docElem,\n        doc = element && element.ownerDocument,\n        box = { left: 0, top: 0 },\n        offset = { left: 0, top: 0 },\n        scrollLeftTop,\n        offsetAttributes = {\n          borderLeftWidth: 'left',\n          borderTopWidth:  'top',\n          paddingLeft:     'left',\n          paddingTop:      'top'\n        };\n\n    if (!doc) {\n      return offset;\n    }\n\n    for (var attr in offsetAttributes) {\n      offset[offsetAttributes[attr]] += parseInt(getElementStyle(element, attr), 10) || 0;\n    }\n\n    docElem = doc.documentElement;\n    if ( typeof element.getBoundingClientRect !== 'undefined' ) {\n      box = element.getBoundingClientRect();\n    }\n\n    scrollLeftTop = getScrollLeftTop(element);\n\n    return {\n      left: box.left + scrollLeftTop.left - (docElem.clientLeft || 0) + offset.left,\n      top: box.top + scrollLeftTop.top - (docElem.clientTop || 0)  + offset.top\n    };\n  }\n\n  /**\n   * Returns style attribute value of a given element\n   * @memberOf fabric.util\n   * @param {HTMLElement} element Element to get style attribute for\n   * @param {String} attr Style attribute to get for element\n   * @return {String} Style attribute value of the given element.\n   */\n  var getElementStyle;\n  if (fabric.document.defaultView && fabric.document.defaultView.getComputedStyle) {\n    getElementStyle = function(element, attr) {\n      var style = fabric.document.defaultView.getComputedStyle(element, null);\n      return style ? style[attr] : undefined;\n    };\n  }\n  else {\n    getElementStyle = function(element, attr) {\n      var value = element.style[attr];\n      if (!value && element.currentStyle) {\n        value = element.currentStyle[attr];\n      }\n      return value;\n    };\n  }\n\n  (function () {\n    var style = fabric.document.documentElement.style,\n        selectProp = 'userSelect' in style\n          ? 'userSelect'\n          : 'MozUserSelect' in style\n            ? 'MozUserSelect'\n            : 'WebkitUserSelect' in style\n              ? 'WebkitUserSelect'\n              : 'KhtmlUserSelect' in style\n                ? 'KhtmlUserSelect'\n                : '';\n\n    /**\n     * Makes element unselectable\n     * @memberOf fabric.util\n     * @param {HTMLElement} element Element to make unselectable\n     * @return {HTMLElement} Element that was passed in\n     */\n    function makeElementUnselectable(element) {\n      if (typeof element.onselectstart !== 'undefined') {\n        element.onselectstart = fabric.util.falseFunction;\n      }\n      if (selectProp) {\n        element.style[selectProp] = 'none';\n      }\n      else if (typeof element.unselectable === 'string') {\n        element.unselectable = 'on';\n      }\n      return element;\n    }\n\n    /**\n     * Makes element selectable\n     * @memberOf fabric.util\n     * @param {HTMLElement} element Element to make selectable\n     * @return {HTMLElement} Element that was passed in\n     */\n    function makeElementSelectable(element) {\n      if (typeof element.onselectstart !== 'undefined') {\n        element.onselectstart = null;\n      }\n      if (selectProp) {\n        element.style[selectProp] = '';\n      }\n      else if (typeof element.unselectable === 'string') {\n        element.unselectable = '';\n      }\n      return element;\n    }\n\n    fabric.util.makeElementUnselectable = makeElementUnselectable;\n    fabric.util.makeElementSelectable = makeElementSelectable;\n  })();\n\n  (function() {\n\n    /**\n     * Inserts a script element with a given url into a document; invokes callback, when that script is finished loading\n     * @memberOf fabric.util\n     * @param {String} url URL of a script to load\n     * @param {Function} callback Callback to execute when script is finished loading\n     */\n    function getScript(url, callback) {\n      var headEl = fabric.document.getElementsByTagName('head')[0],\n          scriptEl = fabric.document.createElement('script'),\n          loading = true;\n\n      /** @ignore */\n      scriptEl.onload = /** @ignore */ scriptEl.onreadystatechange = function(e) {\n        if (loading) {\n          if (typeof this.readyState === 'string' &&\n              this.readyState !== 'loaded' &&\n              this.readyState !== 'complete') {\n            return;\n          }\n          loading = false;\n          callback(e || fabric.window.event);\n          scriptEl = scriptEl.onload = scriptEl.onreadystatechange = null;\n        }\n      };\n      scriptEl.src = url;\n      headEl.appendChild(scriptEl);\n      // causes issue in Opera\n      // headEl.removeChild(scriptEl);\n    }\n\n    fabric.util.getScript = getScript;\n  })();\n\n  function getNodeCanvas(element) {\n    var impl = fabric.jsdomImplForWrapper(element);\n    return impl._canvas || impl._image;\n  };\n\n  function cleanUpJsdomNode(element) {\n    if (!fabric.isLikelyNode) {\n      return;\n    }\n    var impl = fabric.jsdomImplForWrapper(element);\n    if (impl) {\n      impl._image = null;\n      impl._canvas = null;\n      // unsure if necessary\n      impl._currentSrc = null;\n      impl._attributes = null;\n      impl._classList = null;\n    }\n  }\n\n  fabric.util.getById = getById;\n  fabric.util.toArray = toArray;\n  fabric.util.makeElement = makeElement;\n  fabric.util.addClass = addClass;\n  fabric.util.wrapElement = wrapElement;\n  fabric.util.getScrollLeftTop = getScrollLeftTop;\n  fabric.util.getElementOffset = getElementOffset;\n  fabric.util.getElementStyle = getElementStyle;\n  fabric.util.getNodeCanvas = getNodeCanvas;\n  fabric.util.cleanUpJsdomNode = cleanUpJsdomNode;\n\n})();\n\n\n(function() {\n\n  function addParamToUrl(url, param) {\n    return url + (/\\?/.test(url) ? '&' : '?') + param;\n  }\n\n  function emptyFn() { }\n\n  /**\n   * Cross-browser abstraction for sending XMLHttpRequest\n   * @memberOf fabric.util\n   * @param {String} url URL to send XMLHttpRequest to\n   * @param {Object} [options] Options object\n   * @param {String} [options.method=\"GET\"]\n   * @param {String} [options.parameters] parameters to append to url in GET or in body\n   * @param {String} [options.body] body to send with POST or PUT request\n   * @param {Function} options.onComplete Callback to invoke when request is completed\n   * @return {XMLHttpRequest} request\n   */\n  function request(url, options) {\n    options || (options = { });\n\n    var method = options.method ? options.method.toUpperCase() : 'GET',\n        onComplete = options.onComplete || function() { },\n        xhr = new fabric.window.XMLHttpRequest(),\n        body = options.body || options.parameters;\n\n    /** @ignore */\n    xhr.onreadystatechange = function() {\n      if (xhr.readyState === 4) {\n        onComplete(xhr);\n        xhr.onreadystatechange = emptyFn;\n      }\n    };\n\n    if (method === 'GET') {\n      body = null;\n      if (typeof options.parameters === 'string') {\n        url = addParamToUrl(url, options.parameters);\n      }\n    }\n\n    xhr.open(method, url, true);\n\n    if (method === 'POST' || method === 'PUT') {\n      xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');\n    }\n\n    xhr.send(body);\n    return xhr;\n  }\n\n  fabric.util.request = request;\n})();\n\n\n/**\n * Wrapper around `console.log` (when available)\n * @param {*} [values] Values to log\n */\nfabric.log = console.log;\n\n/**\n * Wrapper around `console.warn` (when available)\n * @param {*} [values] Values to log as a warning\n */\nfabric.warn = console.warn;\n\n\n(function() {\n\n  function noop() {\n    return false;\n  }\n\n  function defaultEasing(t, b, c, d) {\n    return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;\n  }\n\n  /**\n   * Changes value from one to another within certain period of time, invoking callbacks as value is being changed.\n   * @memberOf fabric.util\n   * @param {Object} [options] Animation options\n   * @param {Function} [options.onChange] Callback; invoked on every value change\n   * @param {Function} [options.onComplete] Callback; invoked when value change is completed\n   * @param {Number} [options.startValue=0] Starting value\n   * @param {Number} [options.endValue=100] Ending value\n   * @param {Number} [options.byValue=100] Value to modify the property by\n   * @param {Function} [options.easing] Easing function\n   * @param {Number} [options.duration=500] Duration of change (in ms)\n   * @param {Function} [options.abort] Additional function with logic. If returns true, onComplete is called.\n   */\n  function animate(options) {\n\n    requestAnimFrame(function(timestamp) {\n      options || (options = { });\n\n      var start = timestamp || +new Date(),\n          duration = options.duration || 500,\n          finish = start + duration, time,\n          onChange = options.onChange || noop,\n          abort = options.abort || noop,\n          onComplete = options.onComplete || noop,\n          easing = options.easing || defaultEasing,\n          startValue = 'startValue' in options ? options.startValue : 0,\n          endValue = 'endValue' in options ? options.endValue : 100,\n          byValue = options.byValue || endValue - startValue;\n\n      options.onStart && options.onStart();\n\n      (function tick(ticktime) {\n        // TODO: move abort call after calculation\n        // and pass (current,valuePerc, timePerc) as arguments\n        time = ticktime || +new Date();\n        var currentTime = time > finish ? duration : (time - start),\n            timePerc = currentTime / duration,\n            current = easing(currentTime, startValue, byValue, duration),\n            valuePerc = Math.abs((current - startValue) / byValue);\n        if (abort()) {\n          onComplete(endValue, 1, 1);\n          return;\n        }\n        if (time > finish) {\n          onChange(endValue, 1, 1);\n          onComplete(endValue, 1, 1);\n          return;\n        }\n        else {\n          onChange(current, valuePerc, timePerc);\n          requestAnimFrame(tick);\n        }\n      })(start);\n    });\n  }\n\n  var _requestAnimFrame = fabric.window.requestAnimationFrame       ||\n                          fabric.window.webkitRequestAnimationFrame ||\n                          fabric.window.mozRequestAnimationFrame    ||\n                          fabric.window.oRequestAnimationFrame      ||\n                          fabric.window.msRequestAnimationFrame     ||\n                          function(callback) {\n                            return fabric.window.setTimeout(callback, 1000 / 60);\n                          };\n\n  var _cancelAnimFrame = fabric.window.cancelAnimationFrame || fabric.window.clearTimeout;\n\n  /**\n   * requestAnimationFrame polyfill based on http://paulirish.com/2011/requestanimationframe-for-smart-animating/\n   * In order to get a precise start time, `requestAnimFrame` should be called as an entry into the method\n   * @memberOf fabric.util\n   * @param {Function} callback Callback to invoke\n   * @param {DOMElement} element optional Element to associate with animation\n   */\n  function requestAnimFrame() {\n    return _requestAnimFrame.apply(fabric.window, arguments);\n  }\n\n  function cancelAnimFrame() {\n    return _cancelAnimFrame.apply(fabric.window, arguments);\n  }\n\n  fabric.util.animate = animate;\n  fabric.util.requestAnimFrame = requestAnimFrame;\n  fabric.util.cancelAnimFrame = cancelAnimFrame;\n})();\n\n\n(function() {\n  // Calculate an in-between color. Returns a \"rgba()\" string.\n  // Credit: Edwin Martin <edwin@bitstorm.org>\n  //         http://www.bitstorm.org/jquery/color-animation/jquery.animate-colors.js\n  function calculateColor(begin, end, pos) {\n    var color = 'rgba('\n        + parseInt((begin[0] + pos * (end[0] - begin[0])), 10) + ','\n        + parseInt((begin[1] + pos * (end[1] - begin[1])), 10) + ','\n        + parseInt((begin[2] + pos * (end[2] - begin[2])), 10);\n\n    color += ',' + (begin && end ? parseFloat(begin[3] + pos * (end[3] - begin[3])) : 1);\n    color += ')';\n    return color;\n  }\n\n  /**\n   * Changes the color from one to another within certain period of time, invoking callbacks as value is being changed.\n   * @memberOf fabric.util\n   * @param {String} fromColor The starting color in hex or rgb(a) format.\n   * @param {String} toColor The starting color in hex or rgb(a) format.\n   * @param {Number} [duration] Duration of change (in ms).\n   * @param {Object} [options] Animation options\n   * @param {Function} [options.onChange] Callback; invoked on every value change\n   * @param {Function} [options.onComplete] Callback; invoked when value change is completed\n   * @param {Function} [options.colorEasing] Easing function. Note that this function only take two arguments (currentTime, duration). Thus the regular animation easing functions cannot be used.\n   * @param {Function} [options.abort] Additional function with logic. If returns true, onComplete is called.\n   */\n  function animateColor(fromColor, toColor, duration, options) {\n    var startColor = new fabric.Color(fromColor).getSource(),\n        endColor = new fabric.Color(toColor).getSource();\n\n    options = options || {};\n\n    fabric.util.animate(fabric.util.object.extend(options, {\n      duration: duration || 500,\n      startValue: startColor,\n      endValue: endColor,\n      byValue: endColor,\n      easing: function (currentTime, startValue, byValue, duration) {\n        var posValue = options.colorEasing\n          ? options.colorEasing(currentTime, duration)\n          : 1 - Math.cos(currentTime / duration * (Math.PI / 2));\n        return calculateColor(startValue, byValue, posValue);\n      }\n    }));\n  }\n\n  fabric.util.animateColor = animateColor;\n\n})();\n\n\n(function() {\n\n  function normalize(a, c, p, s) {\n    if (a < Math.abs(c)) {\n      a = c;\n      s = p / 4;\n    }\n    else {\n      //handle the 0/0 case:\n      if (c === 0 && a === 0) {\n        s = p / (2 * Math.PI) * Math.asin(1);\n      }\n      else {\n        s = p / (2 * Math.PI) * Math.asin(c / a);\n      }\n    }\n    return { a: a, c: c, p: p, s: s };\n  }\n\n  function elastic(opts, t, d) {\n    return opts.a *\n      Math.pow(2, 10 * (t -= 1)) *\n      Math.sin( (t * d - opts.s) * (2 * Math.PI) / opts.p );\n  }\n\n  /**\n   * Cubic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutCubic(t, b, c, d) {\n    return c * ((t = t / d - 1) * t * t + 1) + b;\n  }\n\n  /**\n   * Cubic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutCubic(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * t * t * t + b;\n    }\n    return c / 2 * ((t -= 2) * t * t + 2) + b;\n  }\n\n  /**\n   * Quartic easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInQuart(t, b, c, d) {\n    return c * (t /= d) * t * t * t + b;\n  }\n\n  /**\n   * Quartic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutQuart(t, b, c, d) {\n    return -c * ((t = t / d - 1) * t * t * t - 1) + b;\n  }\n\n  /**\n   * Quartic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutQuart(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * t * t * t * t + b;\n    }\n    return -c / 2 * ((t -= 2) * t * t * t - 2) + b;\n  }\n\n  /**\n   * Quintic easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInQuint(t, b, c, d) {\n    return c * (t /= d) * t * t * t * t + b;\n  }\n\n  /**\n   * Quintic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutQuint(t, b, c, d) {\n    return c * ((t = t / d - 1) * t * t * t * t + 1) + b;\n  }\n\n  /**\n   * Quintic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutQuint(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * t * t * t * t * t + b;\n    }\n    return c / 2 * ((t -= 2) * t * t * t * t + 2) + b;\n  }\n\n  /**\n   * Sinusoidal easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInSine(t, b, c, d) {\n    return -c * Math.cos(t / d * (Math.PI / 2)) + c + b;\n  }\n\n  /**\n   * Sinusoidal easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutSine(t, b, c, d) {\n    return c * Math.sin(t / d * (Math.PI / 2)) + b;\n  }\n\n  /**\n   * Sinusoidal easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutSine(t, b, c, d) {\n    return -c / 2 * (Math.cos(Math.PI * t / d) - 1) + b;\n  }\n\n  /**\n   * Exponential easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInExpo(t, b, c, d) {\n    return (t === 0) ? b : c * Math.pow(2, 10 * (t / d - 1)) + b;\n  }\n\n  /**\n   * Exponential easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutExpo(t, b, c, d) {\n    return (t === d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b;\n  }\n\n  /**\n   * Exponential easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutExpo(t, b, c, d) {\n    if (t === 0) {\n      return b;\n    }\n    if (t === d) {\n      return b + c;\n    }\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * Math.pow(2, 10 * (t - 1)) + b;\n    }\n    return c / 2 * (-Math.pow(2, -10 * --t) + 2) + b;\n  }\n\n  /**\n   * Circular easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInCirc(t, b, c, d) {\n    return -c * (Math.sqrt(1 - (t /= d) * t) - 1) + b;\n  }\n\n  /**\n   * Circular easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutCirc(t, b, c, d) {\n    return c * Math.sqrt(1 - (t = t / d - 1) * t) + b;\n  }\n\n  /**\n   * Circular easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutCirc(t, b, c, d) {\n    t /= d / 2;\n    if (t < 1) {\n      return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b;\n    }\n    return c / 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;\n  }\n\n  /**\n   * Elastic easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInElastic(t, b, c, d) {\n    var s = 1.70158, p = 0, a = c;\n    if (t === 0) {\n      return b;\n    }\n    t /= d;\n    if (t === 1) {\n      return b + c;\n    }\n    if (!p) {\n      p = d * 0.3;\n    }\n    var opts = normalize(a, c, p, s);\n    return -elastic(opts, t, d) + b;\n  }\n\n  /**\n   * Elastic easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutElastic(t, b, c, d) {\n    var s = 1.70158, p = 0, a = c;\n    if (t === 0) {\n      return b;\n    }\n    t /= d;\n    if (t === 1) {\n      return b + c;\n    }\n    if (!p) {\n      p = d * 0.3;\n    }\n    var opts = normalize(a, c, p, s);\n    return opts.a * Math.pow(2, -10 * t) * Math.sin((t * d - opts.s) * (2 * Math.PI) / opts.p ) + opts.c + b;\n  }\n\n  /**\n   * Elastic easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutElastic(t, b, c, d) {\n    var s = 1.70158, p = 0, a = c;\n    if (t === 0) {\n      return b;\n    }\n    t /= d / 2;\n    if (t === 2) {\n      return b + c;\n    }\n    if (!p) {\n      p = d * (0.3 * 1.5);\n    }\n    var opts = normalize(a, c, p, s);\n    if (t < 1) {\n      return -0.5 * elastic(opts, t, d) + b;\n    }\n    return opts.a * Math.pow(2, -10 * (t -= 1)) *\n      Math.sin((t * d - opts.s) * (2 * Math.PI) / opts.p ) * 0.5 + opts.c + b;\n  }\n\n  /**\n   * Backwards easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInBack(t, b, c, d, s) {\n    if (s === undefined) {\n      s = 1.70158;\n    }\n    return c * (t /= d) * t * ((s + 1) * t - s) + b;\n  }\n\n  /**\n   * Backwards easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutBack(t, b, c, d, s) {\n    if (s === undefined) {\n      s = 1.70158;\n    }\n    return c * ((t = t / d - 1) * t * ((s + 1) * t + s) + 1) + b;\n  }\n\n  /**\n   * Backwards easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutBack(t, b, c, d, s) {\n    if (s === undefined) {\n      s = 1.70158;\n    }\n    t /= d / 2;\n    if (t < 1) {\n      return c / 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;\n    }\n    return c / 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;\n  }\n\n  /**\n   * Bouncing easing in\n   * @memberOf fabric.util.ease\n   */\n  function easeInBounce(t, b, c, d) {\n    return c - easeOutBounce (d - t, 0, c, d) + b;\n  }\n\n  /**\n   * Bouncing easing out\n   * @memberOf fabric.util.ease\n   */\n  function easeOutBounce(t, b, c, d) {\n    if ((t /= d) < (1 / 2.75)) {\n      return c * (7.5625 * t * t) + b;\n    }\n    else if (t < (2 / 2.75)) {\n      return c * (7.5625 * (t -= (1.5 / 2.75)) * t + 0.75) + b;\n    }\n    else if (t < (2.5 / 2.75)) {\n      return c * (7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375) + b;\n    }\n    else {\n      return c * (7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375) + b;\n    }\n  }\n\n  /**\n   * Bouncing easing in and out\n   * @memberOf fabric.util.ease\n   */\n  function easeInOutBounce(t, b, c, d) {\n    if (t < d / 2) {\n      return easeInBounce (t * 2, 0, c, d) * 0.5 + b;\n    }\n    return easeOutBounce(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b;\n  }\n\n  /**\n   * Easing functions\n   * See <a href=\"http://gizma.com/easing/\">Easing Equations by Robert Penner</a>\n   * @namespace fabric.util.ease\n   */\n  fabric.util.ease = {\n\n    /**\n     * Quadratic easing in\n     * @memberOf fabric.util.ease\n     */\n    easeInQuad: function(t, b, c, d) {\n      return c * (t /= d) * t + b;\n    },\n\n    /**\n     * Quadratic easing out\n     * @memberOf fabric.util.ease\n     */\n    easeOutQuad: function(t, b, c, d) {\n      return -c * (t /= d) * (t - 2) + b;\n    },\n\n    /**\n     * Quadratic easing in and out\n     * @memberOf fabric.util.ease\n     */\n    easeInOutQuad: function(t, b, c, d) {\n      t /= (d / 2);\n      if (t < 1) {\n        return c / 2 * t * t + b;\n      }\n      return -c / 2 * ((--t) * (t - 2) - 1) + b;\n    },\n\n    /**\n     * Cubic easing in\n     * @memberOf fabric.util.ease\n     */\n    easeInCubic: function(t, b, c, d) {\n      return c * (t /= d) * t * t + b;\n    },\n\n    easeOutCubic: easeOutCubic,\n    easeInOutCubic: easeInOutCubic,\n    easeInQuart: easeInQuart,\n    easeOutQuart: easeOutQuart,\n    easeInOutQuart: easeInOutQuart,\n    easeInQuint: easeInQuint,\n    easeOutQuint: easeOutQuint,\n    easeInOutQuint: easeInOutQuint,\n    easeInSine: easeInSine,\n    easeOutSine: easeOutSine,\n    easeInOutSine: easeInOutSine,\n    easeInExpo: easeInExpo,\n    easeOutExpo: easeOutExpo,\n    easeInOutExpo: easeInOutExpo,\n    easeInCirc: easeInCirc,\n    easeOutCirc: easeOutCirc,\n    easeInOutCirc: easeInOutCirc,\n    easeInElastic: easeInElastic,\n    easeOutElastic: easeOutElastic,\n    easeInOutElastic: easeInOutElastic,\n    easeInBack: easeInBack,\n    easeOutBack: easeOutBack,\n    easeInOutBack: easeInOutBack,\n    easeInBounce: easeInBounce,\n    easeOutBounce: easeOutBounce,\n    easeInOutBounce: easeInOutBounce\n  };\n\n})();\n\n\n(function(global) {\n\n  'use strict';\n\n  /**\n   * @name fabric\n   * @namespace\n   */\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      clone = fabric.util.object.clone,\n      toFixed = fabric.util.toFixed,\n      parseUnit = fabric.util.parseUnit,\n      multiplyTransformMatrices = fabric.util.multiplyTransformMatrices,\n\n      svgValidTagNames = ['path', 'circle', 'polygon', 'polyline', 'ellipse', 'rect', 'line',\n        'image', 'text'],\n      svgViewBoxElements = ['symbol', 'image', 'marker', 'pattern', 'view', 'svg'],\n      svgInvalidAncestors = ['pattern', 'defs', 'symbol', 'metadata', 'clipPath', 'mask', 'desc'],\n      svgValidParents = ['symbol', 'g', 'a', 'svg', 'clipPath', 'defs'],\n\n      attributesMap = {\n        cx:                   'left',\n        x:                    'left',\n        r:                    'radius',\n        cy:                   'top',\n        y:                    'top',\n        display:              'visible',\n        visibility:           'visible',\n        transform:            'transformMatrix',\n        'fill-opacity':       'fillOpacity',\n        'fill-rule':          'fillRule',\n        'font-family':        'fontFamily',\n        'font-size':          'fontSize',\n        'font-style':         'fontStyle',\n        'font-weight':        'fontWeight',\n        'letter-spacing':     'charSpacing',\n        'paint-order':        'paintFirst',\n        'stroke-dasharray':   'strokeDashArray',\n        'stroke-dashoffset':  'strokeDashOffset',\n        'stroke-linecap':     'strokeLineCap',\n        'stroke-linejoin':    'strokeLineJoin',\n        'stroke-miterlimit':  'strokeMiterLimit',\n        'stroke-opacity':     'strokeOpacity',\n        'stroke-width':       'strokeWidth',\n        'text-decoration':    'textDecoration',\n        'text-anchor':        'textAnchor',\n        opacity:              'opacity',\n        'clip-path':          'clipPath',\n        'clip-rule':          'clipRule',\n        'vector-effect':      'strokeUniform'\n      },\n\n      colorAttributes = {\n        stroke: 'strokeOpacity',\n        fill:   'fillOpacity'\n      },\n\n      fSize = 'font-size', cPath = 'clip-path';\n\n  fabric.svgValidTagNamesRegEx = getSvgRegex(svgValidTagNames);\n  fabric.svgViewBoxElementsRegEx = getSvgRegex(svgViewBoxElements);\n  fabric.svgInvalidAncestorsRegEx = getSvgRegex(svgInvalidAncestors);\n  fabric.svgValidParentsRegEx = getSvgRegex(svgValidParents);\n\n  fabric.cssRules = { };\n  fabric.gradientDefs = { };\n  fabric.clipPaths = { };\n\n  function normalizeAttr(attr) {\n    // transform attribute names\n    if (attr in attributesMap) {\n      return attributesMap[attr];\n    }\n    return attr;\n  }\n\n  function normalizeValue(attr, value, parentAttributes, fontSize) {\n    var isArray = Object.prototype.toString.call(value) === '[object Array]',\n        parsed;\n\n    if ((attr === 'fill' || attr === 'stroke') && value === 'none') {\n      value = '';\n    }\n    else if (attr === 'vector-effect') {\n      value = value === 'non-scaling-stroke';\n    }\n    else if (attr === 'strokeDashArray') {\n      if (value === 'none') {\n        value = null;\n      }\n      else {\n        value = value.replace(/,/g, ' ').split(/\\s+/).map(parseFloat);\n      }\n    }\n    else if (attr === 'transformMatrix') {\n      if (parentAttributes && parentAttributes.transformMatrix) {\n        value = multiplyTransformMatrices(\n          parentAttributes.transformMatrix, fabric.parseTransformAttribute(value));\n      }\n      else {\n        value = fabric.parseTransformAttribute(value);\n      }\n    }\n    else if (attr === 'visible') {\n      value = value !== 'none' && value !== 'hidden';\n      // display=none on parent element always takes precedence over child element\n      if (parentAttributes && parentAttributes.visible === false) {\n        value = false;\n      }\n    }\n    else if (attr === 'opacity') {\n      value = parseFloat(value);\n      if (parentAttributes && typeof parentAttributes.opacity !== 'undefined') {\n        value *= parentAttributes.opacity;\n      }\n    }\n    else if (attr === 'textAnchor' /* text-anchor */) {\n      value = value === 'start' ? 'left' : value === 'end' ? 'right' : 'center';\n    }\n    else if (attr === 'charSpacing') {\n      // parseUnit returns px and we convert it to em\n      parsed = parseUnit(value, fontSize) / fontSize * 1000;\n    }\n    else if (attr === 'paintFirst') {\n      var fillIndex = value.indexOf('fill');\n      var strokeIndex = value.indexOf('stroke');\n      var value = 'fill';\n      if (fillIndex > -1 && strokeIndex > -1 && strokeIndex < fillIndex) {\n        value = 'stroke';\n      }\n      else if (fillIndex === -1 && strokeIndex > -1) {\n        value = 'stroke';\n      }\n    }\n    else if (attr === 'href' || attr === 'xlink:href') {\n      return value;\n    }\n    else {\n      parsed = isArray ? value.map(parseUnit) : parseUnit(value, fontSize);\n    }\n\n    return (!isArray && isNaN(parsed) ? value : parsed);\n  }\n\n  /**\n    * @private\n    */\n  function getSvgRegex(arr) {\n    return new RegExp('^(' + arr.join('|') + ')\\\\b', 'i');\n  }\n\n  /**\n   * @private\n   * @param {Object} attributes Array of attributes to parse\n   */\n  function _setStrokeFillOpacity(attributes) {\n    for (var attr in colorAttributes) {\n\n      if (typeof attributes[colorAttributes[attr]] === 'undefined' || attributes[attr] === '') {\n        continue;\n      }\n\n      if (typeof attributes[attr] === 'undefined') {\n        if (!fabric.Object.prototype[attr]) {\n          continue;\n        }\n        attributes[attr] = fabric.Object.prototype[attr];\n      }\n\n      if (attributes[attr].indexOf('url(') === 0) {\n        continue;\n      }\n\n      var color = new fabric.Color(attributes[attr]);\n      attributes[attr] = color.setAlpha(toFixed(color.getAlpha() * attributes[colorAttributes[attr]], 2)).toRgba();\n    }\n    return attributes;\n  }\n\n  /**\n   * @private\n   */\n  function _getMultipleNodes(doc, nodeNames) {\n    var nodeName, nodeArray = [], nodeList, i, len;\n    for (i = 0, len = nodeNames.length; i < len; i++) {\n      nodeName = nodeNames[i];\n      nodeList = doc.getElementsByTagName(nodeName);\n      nodeArray = nodeArray.concat(Array.prototype.slice.call(nodeList));\n    }\n    return nodeArray;\n  }\n\n  /**\n   * Parses \"transform\" attribute, returning an array of values\n   * @static\n   * @function\n   * @memberOf fabric\n   * @param {String} attributeValue String containing attribute value\n   * @return {Array} Array of 6 elements representing transformation matrix\n   */\n  fabric.parseTransformAttribute = (function() {\n    function rotateMatrix(matrix, args) {\n      var cos = fabric.util.cos(args[0]), sin = fabric.util.sin(args[0]),\n          x = 0, y = 0;\n      if (args.length === 3) {\n        x = args[1];\n        y = args[2];\n      }\n\n      matrix[0] = cos;\n      matrix[1] = sin;\n      matrix[2] = -sin;\n      matrix[3] = cos;\n      matrix[4] = x - (cos * x - sin * y);\n      matrix[5] = y - (sin * x + cos * y);\n    }\n\n    function scaleMatrix(matrix, args) {\n      var multiplierX = args[0],\n          multiplierY = (args.length === 2) ? args[1] : args[0];\n\n      matrix[0] = multiplierX;\n      matrix[3] = multiplierY;\n    }\n\n    function skewMatrix(matrix, args, pos) {\n      matrix[pos] = Math.tan(fabric.util.degreesToRadians(args[0]));\n    }\n\n    function translateMatrix(matrix, args) {\n      matrix[4] = args[0];\n      if (args.length === 2) {\n        matrix[5] = args[1];\n      }\n    }\n\n    // identity matrix\n    var iMatrix = fabric.iMatrix,\n\n        // == begin transform regexp\n        number = fabric.reNum,\n\n        commaWsp = '(?:\\\\s+,?\\\\s*|,\\\\s*)',\n\n        skewX = '(?:(skewX)\\\\s*\\\\(\\\\s*(' + number + ')\\\\s*\\\\))',\n\n        skewY = '(?:(skewY)\\\\s*\\\\(\\\\s*(' + number + ')\\\\s*\\\\))',\n\n        rotate = '(?:(rotate)\\\\s*\\\\(\\\\s*(' + number + ')(?:' +\n                    commaWsp + '(' + number + ')' +\n                    commaWsp + '(' + number + '))?\\\\s*\\\\))',\n\n        scale = '(?:(scale)\\\\s*\\\\(\\\\s*(' + number + ')(?:' +\n                    commaWsp + '(' + number + '))?\\\\s*\\\\))',\n\n        translate = '(?:(translate)\\\\s*\\\\(\\\\s*(' + number + ')(?:' +\n                    commaWsp + '(' + number + '))?\\\\s*\\\\))',\n\n        matrix = '(?:(matrix)\\\\s*\\\\(\\\\s*' +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' + commaWsp +\n                  '(' + number + ')' +\n                  '\\\\s*\\\\))',\n\n        transform = '(?:' +\n                    matrix + '|' +\n                    translate + '|' +\n                    scale + '|' +\n                    rotate + '|' +\n                    skewX + '|' +\n                    skewY +\n                    ')',\n\n        transforms = '(?:' + transform + '(?:' + commaWsp + '*' + transform + ')*' + ')',\n\n        transformList = '^\\\\s*(?:' + transforms + '?)\\\\s*$',\n\n        // http://www.w3.org/TR/SVG/coords.html#TransformAttribute\n        reTransformList = new RegExp(transformList),\n        // == end transform regexp\n\n        reTransform = new RegExp(transform, 'g');\n\n    return function(attributeValue) {\n\n      // start with identity matrix\n      var matrix = iMatrix.concat(),\n          matrices = [];\n\n      // return if no argument was given or\n      // an argument does not match transform attribute regexp\n      if (!attributeValue || (attributeValue && !reTransformList.test(attributeValue))) {\n        return matrix;\n      }\n\n      attributeValue.replace(reTransform, function(match) {\n\n        var m = new RegExp(transform).exec(match).filter(function (match) {\n              // match !== '' && match != null\n              return (!!match);\n            }),\n            operation = m[1],\n            args = m.slice(2).map(parseFloat);\n\n        switch (operation) {\n          case 'translate':\n            translateMatrix(matrix, args);\n            break;\n          case 'rotate':\n            args[0] = fabric.util.degreesToRadians(args[0]);\n            rotateMatrix(matrix, args);\n            break;\n          case 'scale':\n            scaleMatrix(matrix, args);\n            break;\n          case 'skewX':\n            skewMatrix(matrix, args, 2);\n            break;\n          case 'skewY':\n            skewMatrix(matrix, args, 1);\n            break;\n          case 'matrix':\n            matrix = args;\n            break;\n        }\n\n        // snapshot current matrix into matrices array\n        matrices.push(matrix.concat());\n        // reset\n        matrix = iMatrix.concat();\n      });\n\n      var combinedMatrix = matrices[0];\n      while (matrices.length > 1) {\n        matrices.shift();\n        combinedMatrix = fabric.util.multiplyTransformMatrices(combinedMatrix, matrices[0]);\n      }\n      return combinedMatrix;\n    };\n  })();\n\n  /**\n   * @private\n   */\n  function parseStyleString(style, oStyle) {\n    var attr, value;\n    style.replace(/;\\s*$/, '').split(';').forEach(function (chunk) {\n      var pair = chunk.split(':');\n\n      attr = pair[0].trim().toLowerCase();\n      value =  pair[1].trim();\n\n      oStyle[attr] = value;\n    });\n  }\n\n  /**\n   * @private\n   */\n  function parseStyleObject(style, oStyle) {\n    var attr, value;\n    for (var prop in style) {\n      if (typeof style[prop] === 'undefined') {\n        continue;\n      }\n\n      attr = prop.toLowerCase();\n      value = style[prop];\n\n      oStyle[attr] = value;\n    }\n  }\n\n  /**\n   * @private\n   */\n  function getGlobalStylesForElement(element, svgUid) {\n    var styles = { };\n    for (var rule in fabric.cssRules[svgUid]) {\n      if (elementMatchesRule(element, rule.split(' '))) {\n        for (var property in fabric.cssRules[svgUid][rule]) {\n          styles[property] = fabric.cssRules[svgUid][rule][property];\n        }\n      }\n    }\n    return styles;\n  }\n\n  /**\n   * @private\n   */\n  function elementMatchesRule(element, selectors) {\n    var firstMatching, parentMatching = true;\n    //start from rightmost selector.\n    firstMatching = selectorMatches(element, selectors.pop());\n    if (firstMatching && selectors.length) {\n      parentMatching = doesSomeParentMatch(element, selectors);\n    }\n    return firstMatching && parentMatching && (selectors.length === 0);\n  }\n\n  function doesSomeParentMatch(element, selectors) {\n    var selector, parentMatching = true;\n    while (element.parentNode && element.parentNode.nodeType === 1 && selectors.length) {\n      if (parentMatching) {\n        selector = selectors.pop();\n      }\n      element = element.parentNode;\n      parentMatching = selectorMatches(element, selector);\n    }\n    return selectors.length === 0;\n  }\n\n  /**\n   * @private\n   */\n  function selectorMatches(element, selector) {\n    var nodeName = element.nodeName,\n        classNames = element.getAttribute('class'),\n        id = element.getAttribute('id'), matcher, i;\n    // i check if a selector matches slicing away part from it.\n    // if i get empty string i should match\n    matcher = new RegExp('^' + nodeName, 'i');\n    selector = selector.replace(matcher, '');\n    if (id && selector.length) {\n      matcher = new RegExp('#' + id + '(?![a-zA-Z\\\\-]+)', 'i');\n      selector = selector.replace(matcher, '');\n    }\n    if (classNames && selector.length) {\n      classNames = classNames.split(' ');\n      for (i = classNames.length; i--;) {\n        matcher = new RegExp('\\\\.' + classNames[i] + '(?![a-zA-Z\\\\-]+)', 'i');\n        selector = selector.replace(matcher, '');\n      }\n    }\n    return selector.length === 0;\n  }\n\n  /**\n   * @private\n   * to support IE8 missing getElementById on SVGdocument and on node xmlDOM\n   */\n  function elementById(doc, id) {\n    var el;\n    doc.getElementById && (el = doc.getElementById(id));\n    if (el) {\n      return el;\n    }\n    var node, i, len, nodelist = doc.getElementsByTagName('*');\n    for (i = 0, len = nodelist.length; i < len; i++) {\n      node = nodelist[i];\n      if (id === node.getAttribute('id')) {\n        return node;\n      }\n    }\n  }\n\n  /**\n   * @private\n   */\n  function parseUseDirectives(doc) {\n    var nodelist = _getMultipleNodes(doc, ['use', 'svg:use']), i = 0;\n    while (nodelist.length && i < nodelist.length) {\n      var el = nodelist[i],\n          xlink = (el.getAttribute('xlink:href') || el.getAttribute('href')).substr(1),\n          x = el.getAttribute('x') || 0,\n          y = el.getAttribute('y') || 0,\n          el2 = elementById(doc, xlink).cloneNode(true),\n          currentTrans = (el2.getAttribute('transform') || '') + ' translate(' + x + ', ' + y + ')',\n          parentNode, oldLength = nodelist.length, attr, j, attrs, len, namespace = fabric.svgNS;\n\n      applyViewboxTransform(el2);\n      if (/^svg$/i.test(el2.nodeName)) {\n        var el3 = el2.ownerDocument.createElementNS(namespace, 'g');\n        for (j = 0, attrs = el2.attributes, len = attrs.length; j < len; j++) {\n          attr = attrs.item(j);\n          el3.setAttributeNS(namespace, attr.nodeName, attr.nodeValue);\n        }\n        // el2.firstChild != null\n        while (el2.firstChild) {\n          el3.appendChild(el2.firstChild);\n        }\n        el2 = el3;\n      }\n\n      for (j = 0, attrs = el.attributes, len = attrs.length; j < len; j++) {\n        attr = attrs.item(j);\n        if (attr.nodeName === 'x' || attr.nodeName === 'y' ||\n          attr.nodeName === 'xlink:href' || attr.nodeName === 'href') {\n          continue;\n        }\n\n        if (attr.nodeName === 'transform') {\n          currentTrans = attr.nodeValue + ' ' + currentTrans;\n        }\n        else {\n          el2.setAttribute(attr.nodeName, attr.nodeValue);\n        }\n      }\n\n      el2.setAttribute('transform', currentTrans);\n      el2.setAttribute('instantiated_by_use', '1');\n      el2.removeAttribute('id');\n      parentNode = el.parentNode;\n      parentNode.replaceChild(el2, el);\n      // some browsers do not shorten nodelist after replaceChild (IE8)\n      if (nodelist.length === oldLength) {\n        i++;\n      }\n    }\n  }\n\n  // http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute\n  // matches, e.g.: +14.56e-12, etc.\n  var reViewBoxAttrValue = new RegExp(\n    '^' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*,?' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*,?' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*,?' +\n    '\\\\s*(' + fabric.reNum + '+)\\\\s*' +\n    '$'\n  );\n\n  /**\n   * Add a <g> element that envelop all child elements and makes the viewbox transformMatrix descend on all elements\n   */\n  function applyViewboxTransform(element) {\n\n    var viewBoxAttr = element.getAttribute('viewBox'),\n        scaleX = 1,\n        scaleY = 1,\n        minX = 0,\n        minY = 0,\n        viewBoxWidth, viewBoxHeight, matrix, el,\n        widthAttr = element.getAttribute('width'),\n        heightAttr = element.getAttribute('height'),\n        x = element.getAttribute('x') || 0,\n        y = element.getAttribute('y') || 0,\n        preserveAspectRatio = element.getAttribute('preserveAspectRatio') || '',\n        missingViewBox = (!viewBoxAttr || !fabric.svgViewBoxElementsRegEx.test(element.nodeName)\n                           || !(viewBoxAttr = viewBoxAttr.match(reViewBoxAttrValue))),\n        missingDimAttr = (!widthAttr || !heightAttr || widthAttr === '100%' || heightAttr === '100%'),\n        toBeParsed = missingViewBox && missingDimAttr,\n        parsedDim = { }, translateMatrix = '', widthDiff = 0, heightDiff = 0;\n\n    parsedDim.width = 0;\n    parsedDim.height = 0;\n    parsedDim.toBeParsed = toBeParsed;\n\n    if (toBeParsed) {\n      return parsedDim;\n    }\n\n    if (missingViewBox) {\n      parsedDim.width = parseUnit(widthAttr);\n      parsedDim.height = parseUnit(heightAttr);\n      return parsedDim;\n    }\n    minX = -parseFloat(viewBoxAttr[1]);\n    minY = -parseFloat(viewBoxAttr[2]);\n    viewBoxWidth = parseFloat(viewBoxAttr[3]);\n    viewBoxHeight = parseFloat(viewBoxAttr[4]);\n    parsedDim.minX = minX;\n    parsedDim.minY = minY;\n    parsedDim.viewBoxWidth = viewBoxWidth;\n    parsedDim.viewBoxHeight = viewBoxHeight;\n    if (!missingDimAttr) {\n      parsedDim.width = parseUnit(widthAttr);\n      parsedDim.height = parseUnit(heightAttr);\n      scaleX = parsedDim.width / viewBoxWidth;\n      scaleY = parsedDim.height / viewBoxHeight;\n    }\n    else {\n      parsedDim.width = viewBoxWidth;\n      parsedDim.height = viewBoxHeight;\n    }\n\n    // default is to preserve aspect ratio\n    preserveAspectRatio = fabric.util.parsePreserveAspectRatioAttribute(preserveAspectRatio);\n    if (preserveAspectRatio.alignX !== 'none') {\n      //translate all container for the effect of Mid, Min, Max\n      if (preserveAspectRatio.meetOrSlice === 'meet') {\n        scaleY = scaleX = (scaleX > scaleY ? scaleY : scaleX);\n        // calculate additional translation to move the viewbox\n      }\n      if (preserveAspectRatio.meetOrSlice === 'slice') {\n        scaleY = scaleX = (scaleX > scaleY ? scaleX : scaleY);\n        // calculate additional translation to move the viewbox\n      }\n      widthDiff = parsedDim.width - viewBoxWidth * scaleX;\n      heightDiff = parsedDim.height - viewBoxHeight * scaleX;\n      if (preserveAspectRatio.alignX === 'Mid') {\n        widthDiff /= 2;\n      }\n      if (preserveAspectRatio.alignY === 'Mid') {\n        heightDiff /= 2;\n      }\n      if (preserveAspectRatio.alignX === 'Min') {\n        widthDiff = 0;\n      }\n      if (preserveAspectRatio.alignY === 'Min') {\n        heightDiff = 0;\n      }\n    }\n\n    if (scaleX === 1 && scaleY === 1 && minX === 0 && minY === 0 && x === 0 && y === 0) {\n      return parsedDim;\n    }\n\n    if (x || y) {\n      translateMatrix = ' translate(' + parseUnit(x) + ' ' + parseUnit(y) + ') ';\n    }\n\n    matrix = translateMatrix + ' matrix(' + scaleX +\n                  ' 0' +\n                  ' 0 ' +\n                  scaleY + ' ' +\n                  (minX * scaleX + widthDiff) + ' ' +\n                  (minY * scaleY + heightDiff) + ') ';\n    parsedDim.viewboxTransform = fabric.parseTransformAttribute(matrix);\n    if (element.nodeName === 'svg') {\n      el = element.ownerDocument.createElementNS(fabric.svgNS, 'g');\n      // element.firstChild != null\n      while (element.firstChild) {\n        el.appendChild(element.firstChild);\n      }\n      element.appendChild(el);\n    }\n    else {\n      el = element;\n      matrix = el.getAttribute('transform') + matrix;\n    }\n    el.setAttribute('transform', matrix);\n    return parsedDim;\n  }\n\n  function hasAncestorWithNodeName(element, nodeName) {\n    while (element && (element = element.parentNode)) {\n      if (element.nodeName && nodeName.test(element.nodeName.replace('svg:', ''))\n        && !element.getAttribute('instantiated_by_use')) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  /**\n   * Parses an SVG document, converts it to an array of corresponding fabric.* instances and passes them to a callback\n   * @static\n   * @function\n   * @memberOf fabric\n   * @param {SVGDocument} doc SVG document to parse\n   * @param {Function} callback Callback to call when parsing is finished;\n   * It's being passed an array of elements (parsed from a document).\n   * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n   * @param {Object} [parsingOptions] options for parsing document\n   * @param {String} [parsingOptions.crossOrigin] crossOrigin settings\n   */\n  fabric.parseSVGDocument = function(doc, callback, reviver, parsingOptions) {\n    if (!doc) {\n      return;\n    }\n\n    parseUseDirectives(doc);\n\n    var svgUid =  fabric.Object.__uid++, i, len,\n        options = applyViewboxTransform(doc),\n        descendants = fabric.util.toArray(doc.getElementsByTagName('*'));\n    options.crossOrigin = parsingOptions && parsingOptions.crossOrigin;\n    options.svgUid = svgUid;\n\n    if (descendants.length === 0 && fabric.isLikelyNode) {\n      // we're likely in node, where \"o3-xml\" library fails to gEBTN(\"*\")\n      // https://github.com/ajaxorg/node-o3-xml/issues/21\n      descendants = doc.selectNodes('//*[name(.)!=\"svg\"]');\n      var arr = [];\n      for (i = 0, len = descendants.length; i < len; i++) {\n        arr[i] = descendants[i];\n      }\n      descendants = arr;\n    }\n\n    var elements = descendants.filter(function(el) {\n      applyViewboxTransform(el);\n      return fabric.svgValidTagNamesRegEx.test(el.nodeName.replace('svg:', '')) &&\n            !hasAncestorWithNodeName(el, fabric.svgInvalidAncestorsRegEx); // http://www.w3.org/TR/SVG/struct.html#DefsElement\n    });\n\n    if (!elements || (elements && !elements.length)) {\n      callback && callback([], {});\n      return;\n    }\n    var clipPaths = { };\n    descendants.filter(function(el) {\n      return el.nodeName.replace('svg:', '') === 'clipPath';\n    }).forEach(function(el) {\n      var id = el.getAttribute('id');\n      clipPaths[id] = fabric.util.toArray(el.getElementsByTagName('*')).filter(function(el) {\n        return fabric.svgValidTagNamesRegEx.test(el.nodeName.replace('svg:', ''));\n      });\n    });\n    fabric.gradientDefs[svgUid] = fabric.getGradientDefs(doc);\n    fabric.cssRules[svgUid] = fabric.getCSSRules(doc);\n    fabric.clipPaths[svgUid] = clipPaths;\n    // Precedence of rules:   style > class > attribute\n    fabric.parseElements(elements, function(instances, elements) {\n      if (callback) {\n        callback(instances, options, elements, descendants);\n        delete fabric.gradientDefs[svgUid];\n        delete fabric.cssRules[svgUid];\n        delete fabric.clipPaths[svgUid];\n      }\n    }, clone(options), reviver, parsingOptions);\n  };\n\n  function recursivelyParseGradientsXlink(doc, gradient) {\n    var gradientsAttrs = ['gradientTransform', 'x1', 'x2', 'y1', 'y2', 'gradientUnits', 'cx', 'cy', 'r', 'fx', 'fy'],\n        xlinkAttr = 'xlink:href',\n        xLink = gradient.getAttribute(xlinkAttr).substr(1),\n        referencedGradient = elementById(doc, xLink);\n    if (referencedGradient && referencedGradient.getAttribute(xlinkAttr)) {\n      recursivelyParseGradientsXlink(doc, referencedGradient);\n    }\n    gradientsAttrs.forEach(function(attr) {\n      if (referencedGradient && !gradient.hasAttribute(attr) && referencedGradient.hasAttribute(attr)) {\n        gradient.setAttribute(attr, referencedGradient.getAttribute(attr));\n      }\n    });\n    if (!gradient.children.length) {\n      var referenceClone = referencedGradient.cloneNode(true);\n      while (referenceClone.firstChild) {\n        gradient.appendChild(referenceClone.firstChild);\n      }\n    }\n    gradient.removeAttribute(xlinkAttr);\n  }\n\n  var reFontDeclaration = new RegExp(\n    '(normal|italic)?\\\\s*(normal|small-caps)?\\\\s*' +\n    '(normal|bold|bolder|lighter|100|200|300|400|500|600|700|800|900)?\\\\s*(' +\n      fabric.reNum +\n    '(?:px|cm|mm|em|pt|pc|in)*)(?:\\\\/(normal|' + fabric.reNum + '))?\\\\s+(.*)');\n\n  extend(fabric, {\n    /**\n     * Parses a short font declaration, building adding its properties to a style object\n     * @static\n     * @function\n     * @memberOf fabric\n     * @param {String} value font declaration\n     * @param {Object} oStyle definition\n     */\n    parseFontDeclaration: function(value, oStyle) {\n      var match = value.match(reFontDeclaration);\n\n      if (!match) {\n        return;\n      }\n      var fontStyle = match[1],\n          // font variant is not used\n          // fontVariant = match[2],\n          fontWeight = match[3],\n          fontSize = match[4],\n          lineHeight = match[5],\n          fontFamily = match[6];\n\n      if (fontStyle) {\n        oStyle.fontStyle = fontStyle;\n      }\n      if (fontWeight) {\n        oStyle.fontWeight = isNaN(parseFloat(fontWeight)) ? fontWeight : parseFloat(fontWeight);\n      }\n      if (fontSize) {\n        oStyle.fontSize = parseUnit(fontSize);\n      }\n      if (fontFamily) {\n        oStyle.fontFamily = fontFamily;\n      }\n      if (lineHeight) {\n        oStyle.lineHeight = lineHeight === 'normal' ? 1 : lineHeight;\n      }\n    },\n\n    /**\n     * Parses an SVG document, returning all of the gradient declarations found in it\n     * @static\n     * @function\n     * @memberOf fabric\n     * @param {SVGDocument} doc SVG document to parse\n     * @return {Object} Gradient definitions; key corresponds to element id, value -- to gradient definition element\n     */\n    getGradientDefs: function(doc) {\n      var tagArray = [\n            'linearGradient',\n            'radialGradient',\n            'svg:linearGradient',\n            'svg:radialGradient'],\n          elList = _getMultipleNodes(doc, tagArray),\n          el, j = 0, gradientDefs = { };\n      j = elList.length;\n      while (j--) {\n        el = elList[j];\n        if (el.getAttribute('xlink:href')) {\n          recursivelyParseGradientsXlink(doc, el);\n        }\n        gradientDefs[el.getAttribute('id')] = el;\n      }\n      return gradientDefs;\n    },\n\n    /**\n     * Returns an object of attributes' name/value, given element and an array of attribute names;\n     * Parses parent \"g\" nodes recursively upwards.\n     * @static\n     * @memberOf fabric\n     * @param {DOMElement} element Element to parse\n     * @param {Array} attributes Array of attributes to parse\n     * @return {Object} object containing parsed attributes' names/values\n     */\n    parseAttributes: function(element, attributes, svgUid) {\n\n      if (!element) {\n        return;\n      }\n\n      var value,\n          parentAttributes = { },\n          fontSize, parentFontSize;\n\n      if (typeof svgUid === 'undefined') {\n        svgUid = element.getAttribute('svgUid');\n      }\n      // if there's a parent container (`g` or `a` or `symbol` node), parse its attributes recursively upwards\n      if (element.parentNode && fabric.svgValidParentsRegEx.test(element.parentNode.nodeName)) {\n        parentAttributes = fabric.parseAttributes(element.parentNode, attributes, svgUid);\n      }\n\n      var ownAttributes = attributes.reduce(function(memo, attr) {\n        value = element.getAttribute(attr);\n        if (value) { // eslint-disable-line\n          memo[attr] = value;\n        }\n        return memo;\n      }, { });\n      // add values parsed from style, which take precedence over attributes\n      // (see: http://www.w3.org/TR/SVG/styling.html#UsingPresentationAttributes)\n      var cssAttrs = extend(\n        getGlobalStylesForElement(element, svgUid),\n        fabric.parseStyleAttribute(element)\n      );\n      ownAttributes = extend(\n        ownAttributes,\n        cssAttrs\n      );\n      if (cssAttrs[cPath]) {\n        element.setAttribute(cPath, cssAttrs[cPath]);\n      }\n      fontSize = parentFontSize = parentAttributes.fontSize || fabric.Text.DEFAULT_SVG_FONT_SIZE;\n      if (ownAttributes[fSize]) {\n        // looks like the minimum should be 9px when dealing with ems. this is what looks like in browsers.\n        ownAttributes[fSize] = fontSize = parseUnit(ownAttributes[fSize], parentFontSize);\n      }\n\n      var normalizedAttr, normalizedValue, normalizedStyle = {};\n      for (var attr in ownAttributes) {\n        normalizedAttr = normalizeAttr(attr);\n        normalizedValue = normalizeValue(normalizedAttr, ownAttributes[attr], parentAttributes, fontSize);\n        normalizedStyle[normalizedAttr] = normalizedValue;\n      }\n      if (normalizedStyle && normalizedStyle.font) {\n        fabric.parseFontDeclaration(normalizedStyle.font, normalizedStyle);\n      }\n      var mergedAttrs = extend(parentAttributes, normalizedStyle);\n      return fabric.svgValidParentsRegEx.test(element.nodeName) ? mergedAttrs : _setStrokeFillOpacity(mergedAttrs);\n    },\n\n    /**\n     * Transforms an array of svg elements to corresponding fabric.* instances\n     * @static\n     * @memberOf fabric\n     * @param {Array} elements Array of elements to parse\n     * @param {Function} callback Being passed an array of fabric instances (transformed from SVG elements)\n     * @param {Object} [options] Options object\n     * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n     */\n    parseElements: function(elements, callback, options, reviver, parsingOptions) {\n      new fabric.ElementsParser(elements, callback, options, reviver, parsingOptions).parse();\n    },\n\n    /**\n     * Parses \"style\" attribute, retuning an object with values\n     * @static\n     * @memberOf fabric\n     * @param {SVGElement} element Element to parse\n     * @return {Object} Objects with values parsed from style attribute of an element\n     */\n    parseStyleAttribute: function(element) {\n      var oStyle = { },\n          style = element.getAttribute('style');\n\n      if (!style) {\n        return oStyle;\n      }\n\n      if (typeof style === 'string') {\n        parseStyleString(style, oStyle);\n      }\n      else {\n        parseStyleObject(style, oStyle);\n      }\n\n      return oStyle;\n    },\n\n    /**\n     * Parses \"points\" attribute, returning an array of values\n     * @static\n     * @memberOf fabric\n     * @param {String} points points attribute string\n     * @return {Array} array of points\n     */\n    parsePointsAttribute: function(points) {\n\n      // points attribute is required and must not be empty\n      if (!points) {\n        return null;\n      }\n\n      // replace commas with whitespace and remove bookending whitespace\n      points = points.replace(/,/g, ' ').trim();\n\n      points = points.split(/\\s+/);\n      var parsedPoints = [], i, len;\n\n      for (i = 0, len = points.length; i < len; i += 2) {\n        parsedPoints.push({\n          x: parseFloat(points[i]),\n          y: parseFloat(points[i + 1])\n        });\n      }\n\n      // odd number of points is an error\n      // if (parsedPoints.length % 2 !== 0) {\n      //   return null;\n      // }\n\n      return parsedPoints;\n    },\n\n    /**\n     * Returns CSS rules for a given SVG document\n     * @static\n     * @function\n     * @memberOf fabric\n     * @param {SVGDocument} doc SVG document to parse\n     * @return {Object} CSS rules of this document\n     */\n    getCSSRules: function(doc) {\n      var styles = doc.getElementsByTagName('style'), i, len,\n          allRules = { }, rules;\n\n      // very crude parsing of style contents\n      for (i = 0, len = styles.length; i < len; i++) {\n        // <style/> could produce `undefined`, covering this case with ''\n        var styleContents = styles[i].textContent || '';\n\n        // remove comments\n        styleContents = styleContents.replace(/\\/\\*[\\s\\S]*?\\*\\//g, '');\n        if (styleContents.trim() === '') {\n          continue;\n        }\n        rules = styleContents.match(/[^{]*\\{[\\s\\S]*?\\}/g);\n        rules = rules.map(function(rule) { return rule.trim(); });\n        // eslint-disable-next-line no-loop-func\n        rules.forEach(function(rule) {\n\n          var match = rule.match(/([\\s\\S]*?)\\s*\\{([^}]*)\\}/),\n              ruleObj = { }, declaration = match[2].trim(),\n              propertyValuePairs = declaration.replace(/;$/, '').split(/\\s*;\\s*/);\n\n          for (i = 0, len = propertyValuePairs.length; i < len; i++) {\n            var pair = propertyValuePairs[i].split(/\\s*:\\s*/),\n                property = pair[0],\n                value = pair[1];\n            ruleObj[property] = value;\n          }\n          rule = match[1];\n          rule.split(',').forEach(function(_rule) {\n            _rule = _rule.replace(/^svg/i, '').trim();\n            if (_rule === '') {\n              return;\n            }\n            if (allRules[_rule]) {\n              fabric.util.object.extend(allRules[_rule], ruleObj);\n            }\n            else {\n              allRules[_rule] = fabric.util.object.clone(ruleObj);\n            }\n          });\n        });\n      }\n      return allRules;\n    },\n\n    /**\n     * Takes url corresponding to an SVG document, and parses it into a set of fabric objects.\n     * Note that SVG is fetched via XMLHttpRequest, so it needs to conform to SOP (Same Origin Policy)\n     * @memberOf fabric\n     * @param {String} url\n     * @param {Function} callback\n     * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n     * @param {Object} [options] Object containing options for parsing\n     * @param {String} [options.crossOrigin] crossOrigin crossOrigin setting to use for external resources\n     */\n    loadSVGFromURL: function(url, callback, reviver, options) {\n\n      url = url.replace(/^\\n\\s*/, '').trim();\n      new fabric.util.request(url, {\n        method: 'get',\n        onComplete: onComplete\n      });\n\n      function onComplete(r) {\n\n        var xml = r.responseXML;\n        if (xml && !xml.documentElement && fabric.window.ActiveXObject && r.responseText) {\n          xml = new ActiveXObject('Microsoft.XMLDOM');\n          xml.async = 'false';\n          //IE chokes on DOCTYPE\n          xml.loadXML(r.responseText.replace(/<!DOCTYPE[\\s\\S]*?(\\[[\\s\\S]*\\])*?>/i, ''));\n        }\n        if (!xml || !xml.documentElement) {\n          callback && callback(null);\n          return false;\n        }\n\n        fabric.parseSVGDocument(xml.documentElement, function (results, _options, elements, allElements) {\n          callback && callback(results, _options, elements, allElements);\n        }, reviver, options);\n      }\n    },\n\n    /**\n     * Takes string corresponding to an SVG document, and parses it into a set of fabric objects\n     * @memberOf fabric\n     * @param {String} string\n     * @param {Function} callback\n     * @param {Function} [reviver] Method for further parsing of SVG elements, called after each fabric object created.\n     * @param {Object} [options] Object containing options for parsing\n     * @param {String} [options.crossOrigin] crossOrigin crossOrigin setting to use for external resources\n     */\n    loadSVGFromString: function(string, callback, reviver, options) {\n      string = string.trim();\n      var doc;\n      if (typeof fabric.window.DOMParser !== 'undefined') {\n        var parser = new fabric.window.DOMParser();\n        if (parser && parser.parseFromString) {\n          doc = parser.parseFromString(string, 'text/xml');\n        }\n      }\n      else if (fabric.window.ActiveXObject) {\n        doc = new ActiveXObject('Microsoft.XMLDOM');\n        doc.async = 'false';\n        // IE chokes on DOCTYPE\n        doc.loadXML(string.replace(/<!DOCTYPE[\\s\\S]*?(\\[[\\s\\S]*\\])*?>/i, ''));\n      }\n\n      fabric.parseSVGDocument(doc.documentElement, function (results, _options, elements, allElements) {\n        callback(results, _options, elements, allElements);\n      }, reviver, options);\n    }\n  });\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\nfabric.ElementsParser = function(elements, callback, options, reviver, parsingOptions, doc) {\n  this.elements = elements;\n  this.callback = callback;\n  this.options = options;\n  this.reviver = reviver;\n  this.svgUid = (options && options.svgUid) || 0;\n  this.parsingOptions = parsingOptions;\n  this.regexUrl = /^url\\(['\"]?#([^'\"]+)['\"]?\\)/g;\n  this.doc = doc;\n};\n\n(function(proto) {\n  proto.parse = function() {\n    this.instances = new Array(this.elements.length);\n    this.numElements = this.elements.length;\n    this.createObjects();\n  };\n\n  proto.createObjects = function() {\n    var _this = this;\n    this.elements.forEach(function(element, i) {\n      element.setAttribute('svgUid', _this.svgUid);\n      _this.createObject(element, i);\n    });\n  };\n\n  proto.findTag = function(el) {\n    return fabric[fabric.util.string.capitalize(el.tagName.replace('svg:', ''))];\n  };\n\n  proto.createObject = function(el, index) {\n    var klass = this.findTag(el);\n    if (klass && klass.fromElement) {\n      try {\n        klass.fromElement(el, this.createCallback(index, el), this.options);\n      }\n      catch (err) {\n        fabric.log(err);\n      }\n    }\n    else {\n      this.checkIfDone();\n    }\n  };\n\n  proto.createCallback = function(index, el) {\n    var _this = this;\n    return function(obj) {\n      var _options;\n      _this.resolveGradient(obj, el, 'fill');\n      _this.resolveGradient(obj, el, 'stroke');\n      if (obj instanceof fabric.Image && obj._originalElement) {\n        _options = obj.parsePreserveAspectRatioAttribute(el);\n      }\n      obj._removeTransformMatrix(_options);\n      _this.resolveClipPath(obj, el);\n      _this.reviver && _this.reviver(el, obj);\n      _this.instances[index] = obj;\n      _this.checkIfDone();\n    };\n  };\n\n  proto.extractPropertyDefinition = function(obj, property, storage) {\n    var value = obj[property], regex = this.regexUrl;\n    if (!regex.test(value)) {\n      return;\n    }\n    regex.lastIndex = 0;\n    var id = regex.exec(value)[1];\n    regex.lastIndex = 0;\n    return fabric[storage][this.svgUid][id];\n  };\n\n  proto.resolveGradient = function(obj, el, property) {\n    var gradientDef = this.extractPropertyDefinition(obj, property, 'gradientDefs');\n    if (gradientDef) {\n      var opacityAttr = el.getAttribute(property + '-opacity');\n      var gradient = fabric.Gradient.fromElement(gradientDef, obj, opacityAttr, this.options);\n      obj.set(property, gradient);\n    }\n  };\n\n  proto.createClipPathCallback = function(obj, container) {\n    return function(_newObj) {\n      _newObj._removeTransformMatrix();\n      _newObj.fillRule = _newObj.clipRule;\n      container.push(_newObj);\n    };\n  };\n\n  proto.resolveClipPath = function(obj, usingElement) {\n    var clipPath = this.extractPropertyDefinition(obj, 'clipPath', 'clipPaths'),\n        element, klass, objTransformInv, container, gTransform, options;\n    if (clipPath) {\n      container = [];\n      objTransformInv = fabric.util.invertTransform(obj.calcTransformMatrix());\n      // move the clipPath tag as sibling to the real element that is using it\n      var clipPathTag = clipPath[0].parentNode;\n      var clipPathOwner = usingElement;\n      while (clipPathOwner.parentNode && clipPathOwner.getAttribute('clip-path') !== obj.clipPath) {\n        clipPathOwner = clipPathOwner.parentNode;\n      }\n      clipPathOwner.parentNode.appendChild(clipPathTag);\n      for (var i = 0; i < clipPath.length; i++) {\n        element = clipPath[i];\n        klass = this.findTag(element);\n        klass.fromElement(\n          element,\n          this.createClipPathCallback(obj, container),\n          this.options\n        );\n      }\n      if (container.length === 1) {\n        clipPath = container[0];\n      }\n      else {\n        clipPath = new fabric.Group(container);\n      }\n      gTransform = fabric.util.multiplyTransformMatrices(\n        objTransformInv,\n        clipPath.calcTransformMatrix()\n      );\n      if (clipPath.clipPath) {\n        this.resolveClipPath(clipPath, clipPathOwner);\n      }\n      var options = fabric.util.qrDecompose(gTransform);\n      clipPath.flipX = false;\n      clipPath.flipY = false;\n      clipPath.set('scaleX', options.scaleX);\n      clipPath.set('scaleY', options.scaleY);\n      clipPath.angle = options.angle;\n      clipPath.skewX = options.skewX;\n      clipPath.skewY = 0;\n      clipPath.setPositionByOrigin({ x: options.translateX, y: options.translateY }, 'center', 'center');\n      obj.clipPath = clipPath;\n    }\n    else {\n      // if clip-path does not resolve to any element, delete the property.\n      delete obj.clipPath;\n    }\n  };\n\n  proto.checkIfDone = function() {\n    if (--this.numElements === 0) {\n      this.instances = this.instances.filter(function(el) {\n        // eslint-disable-next-line no-eq-null, eqeqeq\n        return el != null;\n      });\n      this.callback(this.instances, this.elements);\n    }\n  };\n})(fabric.ElementsParser.prototype);\n\n\n(function(global) {\n\n  'use strict';\n\n  /* Adaptation of work of Kevin Lindsey (kevin@kevlindev.com) */\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Point) {\n    fabric.warn('fabric.Point is already defined');\n    return;\n  }\n\n  fabric.Point = Point;\n\n  /**\n   * Point class\n   * @class fabric.Point\n   * @memberOf fabric\n   * @constructor\n   * @param {Number} x\n   * @param {Number} y\n   * @return {fabric.Point} thisArg\n   */\n  function Point(x, y) {\n    this.x = x;\n    this.y = y;\n  }\n\n  Point.prototype = /** @lends fabric.Point.prototype */ {\n\n    type: 'point',\n\n    constructor: Point,\n\n    /**\n     * Adds another point to this one and returns another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point} new Point instance with added values\n     */\n    add: function (that) {\n      return new Point(this.x + that.x, this.y + that.y);\n    },\n\n    /**\n     * Adds another point to this one\n     * @param {fabric.Point} that\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    addEquals: function (that) {\n      this.x += that.x;\n      this.y += that.y;\n      return this;\n    },\n\n    /**\n     * Adds value to this point and returns a new one\n     * @param {Number} scalar\n     * @return {fabric.Point} new Point with added value\n     */\n    scalarAdd: function (scalar) {\n      return new Point(this.x + scalar, this.y + scalar);\n    },\n\n    /**\n     * Adds value to this point\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    scalarAddEquals: function (scalar) {\n      this.x += scalar;\n      this.y += scalar;\n      return this;\n    },\n\n    /**\n     * Subtracts another point from this point and returns a new one\n     * @param {fabric.Point} that\n     * @return {fabric.Point} new Point object with subtracted values\n     */\n    subtract: function (that) {\n      return new Point(this.x - that.x, this.y - that.y);\n    },\n\n    /**\n     * Subtracts another point from this point\n     * @param {fabric.Point} that\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    subtractEquals: function (that) {\n      this.x -= that.x;\n      this.y -= that.y;\n      return this;\n    },\n\n    /**\n     * Subtracts value from this point and returns a new one\n     * @param {Number} scalar\n     * @return {fabric.Point}\n     */\n    scalarSubtract: function (scalar) {\n      return new Point(this.x - scalar, this.y - scalar);\n    },\n\n    /**\n     * Subtracts value from this point\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    scalarSubtractEquals: function (scalar) {\n      this.x -= scalar;\n      this.y -= scalar;\n      return this;\n    },\n\n    /**\n     * Multiplies this point by a value and returns a new one\n     * TODO: rename in scalarMultiply in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point}\n     */\n    multiply: function (scalar) {\n      return new Point(this.x * scalar, this.y * scalar);\n    },\n\n    /**\n     * Multiplies this point by a value\n     * TODO: rename in scalarMultiplyEquals in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    multiplyEquals: function (scalar) {\n      this.x *= scalar;\n      this.y *= scalar;\n      return this;\n    },\n\n    /**\n     * Divides this point by a value and returns a new one\n     * TODO: rename in scalarDivide in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point}\n     */\n    divide: function (scalar) {\n      return new Point(this.x / scalar, this.y / scalar);\n    },\n\n    /**\n     * Divides this point by a value\n     * TODO: rename in scalarDivideEquals in 2.0\n     * @param {Number} scalar\n     * @return {fabric.Point} thisArg\n     * @chainable\n     */\n    divideEquals: function (scalar) {\n      this.x /= scalar;\n      this.y /= scalar;\n      return this;\n    },\n\n    /**\n     * Returns true if this point is equal to another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    eq: function (that) {\n      return (this.x === that.x && this.y === that.y);\n    },\n\n    /**\n     * Returns true if this point is less than another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    lt: function (that) {\n      return (this.x < that.x && this.y < that.y);\n    },\n\n    /**\n     * Returns true if this point is less than or equal to another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    lte: function (that) {\n      return (this.x <= that.x && this.y <= that.y);\n    },\n\n    /**\n\n     * Returns true if this point is greater another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    gt: function (that) {\n      return (this.x > that.x && this.y > that.y);\n    },\n\n    /**\n     * Returns true if this point is greater than or equal to another one\n     * @param {fabric.Point} that\n     * @return {Boolean}\n     */\n    gte: function (that) {\n      return (this.x >= that.x && this.y >= that.y);\n    },\n\n    /**\n     * Returns new point which is the result of linear interpolation with this one and another one\n     * @param {fabric.Point} that\n     * @param {Number} t , position of interpolation, between 0 and 1 default 0.5\n     * @return {fabric.Point}\n     */\n    lerp: function (that, t) {\n      if (typeof t === 'undefined') {\n        t = 0.5;\n      }\n      t = Math.max(Math.min(1, t), 0);\n      return new Point(this.x + (that.x - this.x) * t, this.y + (that.y - this.y) * t);\n    },\n\n    /**\n     * Returns distance from this point and another one\n     * @param {fabric.Point} that\n     * @return {Number}\n     */\n    distanceFrom: function (that) {\n      var dx = this.x - that.x,\n          dy = this.y - that.y;\n      return Math.sqrt(dx * dx + dy * dy);\n    },\n\n    /**\n     * Returns the point between this point and another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point}\n     */\n    midPointFrom: function (that) {\n      return this.lerp(that);\n    },\n\n    /**\n     * Returns a new point which is the min of this and another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point}\n     */\n    min: function (that) {\n      return new Point(Math.min(this.x, that.x), Math.min(this.y, that.y));\n    },\n\n    /**\n     * Returns a new point which is the max of this and another one\n     * @param {fabric.Point} that\n     * @return {fabric.Point}\n     */\n    max: function (that) {\n      return new Point(Math.max(this.x, that.x), Math.max(this.y, that.y));\n    },\n\n    /**\n     * Returns string representation of this point\n     * @return {String}\n     */\n    toString: function () {\n      return this.x + ',' + this.y;\n    },\n\n    /**\n     * Sets x/y of this point\n     * @param {Number} x\n     * @param {Number} y\n     * @chainable\n     */\n    setXY: function (x, y) {\n      this.x = x;\n      this.y = y;\n      return this;\n    },\n\n    /**\n     * Sets x of this point\n     * @param {Number} x\n     * @chainable\n     */\n    setX: function (x) {\n      this.x = x;\n      return this;\n    },\n\n    /**\n     * Sets y of this point\n     * @param {Number} y\n     * @chainable\n     */\n    setY: function (y) {\n      this.y = y;\n      return this;\n    },\n\n    /**\n     * Sets x/y of this point from another point\n     * @param {fabric.Point} that\n     * @chainable\n     */\n    setFromPoint: function (that) {\n      this.x = that.x;\n      this.y = that.y;\n      return this;\n    },\n\n    /**\n     * Swaps x/y of this point and another point\n     * @param {fabric.Point} that\n     */\n    swap: function (that) {\n      var x = this.x,\n          y = this.y;\n      this.x = that.x;\n      this.y = that.y;\n      that.x = x;\n      that.y = y;\n    },\n\n    /**\n     * return a cloned instance of the point\n     * @return {fabric.Point}\n     */\n    clone: function () {\n      return new Point(this.x, this.y);\n    }\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  /* Adaptation of work of Kevin Lindsey (kevin@kevlindev.com) */\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Intersection) {\n    fabric.warn('fabric.Intersection is already defined');\n    return;\n  }\n\n  /**\n   * Intersection class\n   * @class fabric.Intersection\n   * @memberOf fabric\n   * @constructor\n   */\n  function Intersection(status) {\n    this.status = status;\n    this.points = [];\n  }\n\n  fabric.Intersection = Intersection;\n\n  fabric.Intersection.prototype = /** @lends fabric.Intersection.prototype */ {\n\n    constructor: Intersection,\n\n    /**\n     * Appends a point to intersection\n     * @param {fabric.Point} point\n     * @return {fabric.Intersection} thisArg\n     * @chainable\n     */\n    appendPoint: function (point) {\n      this.points.push(point);\n      return this;\n    },\n\n    /**\n     * Appends points to intersection\n     * @param {Array} points\n     * @return {fabric.Intersection} thisArg\n     * @chainable\n     */\n    appendPoints: function (points) {\n      this.points = this.points.concat(points);\n      return this;\n    }\n  };\n\n  /**\n   * Checks if one line intersects another\n   * TODO: rename in intersectSegmentSegment\n   * @static\n   * @param {fabric.Point} a1\n   * @param {fabric.Point} a2\n   * @param {fabric.Point} b1\n   * @param {fabric.Point} b2\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectLineLine = function (a1, a2, b1, b2) {\n    var result,\n        uaT = (b2.x - b1.x) * (a1.y - b1.y) - (b2.y - b1.y) * (a1.x - b1.x),\n        ubT = (a2.x - a1.x) * (a1.y - b1.y) - (a2.y - a1.y) * (a1.x - b1.x),\n        uB = (b2.y - b1.y) * (a2.x - a1.x) - (b2.x - b1.x) * (a2.y - a1.y);\n    if (uB !== 0) {\n      var ua = uaT / uB,\n          ub = ubT / uB;\n      if (0 <= ua && ua <= 1 && 0 <= ub && ub <= 1) {\n        result = new Intersection('Intersection');\n        result.appendPoint(new fabric.Point(a1.x + ua * (a2.x - a1.x), a1.y + ua * (a2.y - a1.y)));\n      }\n      else {\n        result = new Intersection();\n      }\n    }\n    else {\n      if (uaT === 0 || ubT === 0) {\n        result = new Intersection('Coincident');\n      }\n      else {\n        result = new Intersection('Parallel');\n      }\n    }\n    return result;\n  };\n\n  /**\n   * Checks if line intersects polygon\n   * TODO: rename in intersectSegmentPolygon\n   * fix detection of coincident\n   * @static\n   * @param {fabric.Point} a1\n   * @param {fabric.Point} a2\n   * @param {Array} points\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectLinePolygon = function(a1, a2, points) {\n    var result = new Intersection(),\n        length = points.length,\n        b1, b2, inter, i;\n\n    for (i = 0; i < length; i++) {\n      b1 = points[i];\n      b2 = points[(i + 1) % length];\n      inter = Intersection.intersectLineLine(a1, a2, b1, b2);\n\n      result.appendPoints(inter.points);\n    }\n    if (result.points.length > 0) {\n      result.status = 'Intersection';\n    }\n    return result;\n  };\n\n  /**\n   * Checks if polygon intersects another polygon\n   * @static\n   * @param {Array} points1\n   * @param {Array} points2\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectPolygonPolygon = function (points1, points2) {\n    var result = new Intersection(),\n        length = points1.length, i;\n\n    for (i = 0; i < length; i++) {\n      var a1 = points1[i],\n          a2 = points1[(i + 1) % length],\n          inter = Intersection.intersectLinePolygon(a1, a2, points2);\n\n      result.appendPoints(inter.points);\n    }\n    if (result.points.length > 0) {\n      result.status = 'Intersection';\n    }\n    return result;\n  };\n\n  /**\n   * Checks if polygon intersects rectangle\n   * @static\n   * @param {Array} points\n   * @param {fabric.Point} r1\n   * @param {fabric.Point} r2\n   * @return {fabric.Intersection}\n   */\n  fabric.Intersection.intersectPolygonRectangle = function (points, r1, r2) {\n    var min = r1.min(r2),\n        max = r1.max(r2),\n        topRight = new fabric.Point(max.x, min.y),\n        bottomLeft = new fabric.Point(min.x, max.y),\n        inter1 = Intersection.intersectLinePolygon(min, topRight, points),\n        inter2 = Intersection.intersectLinePolygon(topRight, max, points),\n        inter3 = Intersection.intersectLinePolygon(max, bottomLeft, points),\n        inter4 = Intersection.intersectLinePolygon(bottomLeft, min, points),\n        result = new Intersection();\n\n    result.appendPoints(inter1.points);\n    result.appendPoints(inter2.points);\n    result.appendPoints(inter3.points);\n    result.appendPoints(inter4.points);\n\n    if (result.points.length > 0) {\n      result.status = 'Intersection';\n    }\n    return result;\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Color) {\n    fabric.warn('fabric.Color is already defined.');\n    return;\n  }\n\n  /**\n   * Color class\n   * The purpose of {@link fabric.Color} is to abstract and encapsulate common color operations;\n   * {@link fabric.Color} is a constructor and creates instances of {@link fabric.Color} objects.\n   *\n   * @class fabric.Color\n   * @param {String} color optional in hex or rgb(a) or hsl format or from known color list\n   * @return {fabric.Color} thisArg\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2/#colors}\n   */\n  function Color(color) {\n    if (!color) {\n      this.setSource([0, 0, 0, 1]);\n    }\n    else {\n      this._tryParsingColor(color);\n    }\n  }\n\n  fabric.Color = Color;\n\n  fabric.Color.prototype = /** @lends fabric.Color.prototype */ {\n\n    /**\n     * @private\n     * @param {String|Array} color Color value to parse\n     */\n    _tryParsingColor: function(color) {\n      var source;\n\n      if (color in Color.colorNameMap) {\n        color = Color.colorNameMap[color];\n      }\n\n      if (color === 'transparent') {\n        source = [255, 255, 255, 0];\n      }\n\n      if (!source) {\n        source = Color.sourceFromHex(color);\n      }\n      if (!source) {\n        source = Color.sourceFromRgb(color);\n      }\n      if (!source) {\n        source = Color.sourceFromHsl(color);\n      }\n      if (!source) {\n        //if color is not recognize let's make black as canvas does\n        source = [0, 0, 0, 1];\n      }\n      if (source) {\n        this.setSource(source);\n      }\n    },\n\n    /**\n     * Adapted from <a href=\"https://rawgithub.com/mjijackson/mjijackson.github.com/master/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript.html\">https://github.com/mjijackson</a>\n     * @private\n     * @param {Number} r Red color value\n     * @param {Number} g Green color value\n     * @param {Number} b Blue color value\n     * @return {Array} Hsl color\n     */\n    _rgbToHsl: function(r, g, b) {\n      r /= 255; g /= 255; b /= 255;\n\n      var h, s, l,\n          max = fabric.util.array.max([r, g, b]),\n          min = fabric.util.array.min([r, g, b]);\n\n      l = (max + min) / 2;\n\n      if (max === min) {\n        h = s = 0; // achromatic\n      }\n      else {\n        var d = max - min;\n        s = l > 0.5 ? d / (2 - max - min) : d / (max + min);\n        switch (max) {\n          case r:\n            h = (g - b) / d + (g < b ? 6 : 0);\n            break;\n          case g:\n            h = (b - r) / d + 2;\n            break;\n          case b:\n            h = (r - g) / d + 4;\n            break;\n        }\n        h /= 6;\n      }\n\n      return [\n        Math.round(h * 360),\n        Math.round(s * 100),\n        Math.round(l * 100)\n      ];\n    },\n\n    /**\n     * Returns source of this color (where source is an array representation; ex: [200, 200, 100, 1])\n     * @return {Array}\n     */\n    getSource: function() {\n      return this._source;\n    },\n\n    /**\n     * Sets source of this color (where source is an array representation; ex: [200, 200, 100, 1])\n     * @param {Array} source\n     */\n    setSource: function(source) {\n      this._source = source;\n    },\n\n    /**\n     * Returns color representation in RGB format\n     * @return {String} ex: rgb(0-255,0-255,0-255)\n     */\n    toRgb: function() {\n      var source = this.getSource();\n      return 'rgb(' + source[0] + ',' + source[1] + ',' + source[2] + ')';\n    },\n\n    /**\n     * Returns color representation in RGBA format\n     * @return {String} ex: rgba(0-255,0-255,0-255,0-1)\n     */\n    toRgba: function() {\n      var source = this.getSource();\n      return 'rgba(' + source[0] + ',' + source[1] + ',' + source[2] + ',' + source[3] + ')';\n    },\n\n    /**\n     * Returns color representation in HSL format\n     * @return {String} ex: hsl(0-360,0%-100%,0%-100%)\n     */\n    toHsl: function() {\n      var source = this.getSource(),\n          hsl = this._rgbToHsl(source[0], source[1], source[2]);\n\n      return 'hsl(' + hsl[0] + ',' + hsl[1] + '%,' + hsl[2] + '%)';\n    },\n\n    /**\n     * Returns color representation in HSLA format\n     * @return {String} ex: hsla(0-360,0%-100%,0%-100%,0-1)\n     */\n    toHsla: function() {\n      var source = this.getSource(),\n          hsl = this._rgbToHsl(source[0], source[1], source[2]);\n\n      return 'hsla(' + hsl[0] + ',' + hsl[1] + '%,' + hsl[2] + '%,' + source[3] + ')';\n    },\n\n    /**\n     * Returns color representation in HEX format\n     * @return {String} ex: FF5555\n     */\n    toHex: function() {\n      var source = this.getSource(), r, g, b;\n\n      r = source[0].toString(16);\n      r = (r.length === 1) ? ('0' + r) : r;\n\n      g = source[1].toString(16);\n      g = (g.length === 1) ? ('0' + g) : g;\n\n      b = source[2].toString(16);\n      b = (b.length === 1) ? ('0' + b) : b;\n\n      return r.toUpperCase() + g.toUpperCase() + b.toUpperCase();\n    },\n\n    /**\n     * Returns color representation in HEXA format\n     * @return {String} ex: FF5555CC\n     */\n    toHexa: function() {\n      var source = this.getSource(), a;\n\n      a = Math.round(source[3] * 255);\n      a = a.toString(16);\n      a = (a.length === 1) ? ('0' + a) : a;\n\n      return this.toHex() + a.toUpperCase();\n    },\n\n    /**\n     * Gets value of alpha channel for this color\n     * @return {Number} 0-1\n     */\n    getAlpha: function() {\n      return this.getSource()[3];\n    },\n\n    /**\n     * Sets value of alpha channel for this color\n     * @param {Number} alpha Alpha value 0-1\n     * @return {fabric.Color} thisArg\n     */\n    setAlpha: function(alpha) {\n      var source = this.getSource();\n      source[3] = alpha;\n      this.setSource(source);\n      return this;\n    },\n\n    /**\n     * Transforms color to its grayscale representation\n     * @return {fabric.Color} thisArg\n     */\n    toGrayscale: function() {\n      var source = this.getSource(),\n          average = parseInt((source[0] * 0.3 + source[1] * 0.59 + source[2] * 0.11).toFixed(0), 10),\n          currentAlpha = source[3];\n      this.setSource([average, average, average, currentAlpha]);\n      return this;\n    },\n\n    /**\n     * Transforms color to its black and white representation\n     * @param {Number} threshold\n     * @return {fabric.Color} thisArg\n     */\n    toBlackWhite: function(threshold) {\n      var source = this.getSource(),\n          average = (source[0] * 0.3 + source[1] * 0.59 + source[2] * 0.11).toFixed(0),\n          currentAlpha = source[3];\n\n      threshold = threshold || 127;\n\n      average = (Number(average) < Number(threshold)) ? 0 : 255;\n      this.setSource([average, average, average, currentAlpha]);\n      return this;\n    },\n\n    /**\n     * Overlays color with another color\n     * @param {String|fabric.Color} otherColor\n     * @return {fabric.Color} thisArg\n     */\n    overlayWith: function(otherColor) {\n      if (!(otherColor instanceof Color)) {\n        otherColor = new Color(otherColor);\n      }\n\n      var result = [],\n          alpha = this.getAlpha(),\n          otherAlpha = 0.5,\n          source = this.getSource(),\n          otherSource = otherColor.getSource(), i;\n\n      for (i = 0; i < 3; i++) {\n        result.push(Math.round((source[i] * (1 - otherAlpha)) + (otherSource[i] * otherAlpha)));\n      }\n\n      result[3] = alpha;\n      this.setSource(result);\n      return this;\n    }\n  };\n\n  /**\n   * Regex matching color in RGB or RGBA formats (ex: rgb(0, 0, 0), rgba(255, 100, 10, 0.5), rgba( 255 , 100 , 10 , 0.5 ), rgb(1,1,1), rgba(100%, 60%, 10%, 0.5))\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   */\n  // eslint-disable-next-line max-len\n  fabric.Color.reRGBa = /^rgba?\\(\\s*(\\d{1,3}(?:\\.\\d+)?\\%?)\\s*,\\s*(\\d{1,3}(?:\\.\\d+)?\\%?)\\s*,\\s*(\\d{1,3}(?:\\.\\d+)?\\%?)\\s*(?:\\s*,\\s*((?:\\d*\\.?\\d+)?)\\s*)?\\)$/i;\n\n  /**\n   * Regex matching color in HSL or HSLA formats (ex: hsl(200, 80%, 10%), hsla(300, 50%, 80%, 0.5), hsla( 300 , 50% , 80% , 0.5 ))\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   */\n  fabric.Color.reHSLa = /^hsla?\\(\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3}\\%)\\s*,\\s*(\\d{1,3}\\%)\\s*(?:\\s*,\\s*(\\d+(?:\\.\\d+)?)\\s*)?\\)$/i;\n\n  /**\n   * Regex matching color in HEX format (ex: #FF5544CC, #FF5555, 010155, aff)\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   */\n  fabric.Color.reHex = /^#?([0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{4}|[0-9a-f]{3})$/i;\n\n  /**\n   * Map of the 148 color names with HEX code\n   * @static\n   * @field\n   * @memberOf fabric.Color\n   * @see: https://www.w3.org/TR/css3-color/#svg-color\n   */\n  fabric.Color.colorNameMap = {\n    aliceblue:            '#F0F8FF',\n    antiquewhite:         '#FAEBD7',\n    aqua:                 '#00FFFF',\n    aquamarine:           '#7FFFD4',\n    azure:                '#F0FFFF',\n    beige:                '#F5F5DC',\n    bisque:               '#FFE4C4',\n    black:                '#000000',\n    blanchedalmond:       '#FFEBCD',\n    blue:                 '#0000FF',\n    blueviolet:           '#8A2BE2',\n    brown:                '#A52A2A',\n    burlywood:            '#DEB887',\n    cadetblue:            '#5F9EA0',\n    chartreuse:           '#7FFF00',\n    chocolate:            '#D2691E',\n    coral:                '#FF7F50',\n    cornflowerblue:       '#6495ED',\n    cornsilk:             '#FFF8DC',\n    crimson:              '#DC143C',\n    cyan:                 '#00FFFF',\n    darkblue:             '#00008B',\n    darkcyan:             '#008B8B',\n    darkgoldenrod:        '#B8860B',\n    darkgray:             '#A9A9A9',\n    darkgrey:             '#A9A9A9',\n    darkgreen:            '#006400',\n    darkkhaki:            '#BDB76B',\n    darkmagenta:          '#8B008B',\n    darkolivegreen:       '#556B2F',\n    darkorange:           '#FF8C00',\n    darkorchid:           '#9932CC',\n    darkred:              '#8B0000',\n    darksalmon:           '#E9967A',\n    darkseagreen:         '#8FBC8F',\n    darkslateblue:        '#483D8B',\n    darkslategray:        '#2F4F4F',\n    darkslategrey:        '#2F4F4F',\n    darkturquoise:        '#00CED1',\n    darkviolet:           '#9400D3',\n    deeppink:             '#FF1493',\n    deepskyblue:          '#00BFFF',\n    dimgray:              '#696969',\n    dimgrey:              '#696969',\n    dodgerblue:           '#1E90FF',\n    firebrick:            '#B22222',\n    floralwhite:          '#FFFAF0',\n    forestgreen:          '#228B22',\n    fuchsia:              '#FF00FF',\n    gainsboro:            '#DCDCDC',\n    ghostwhite:           '#F8F8FF',\n    gold:                 '#FFD700',\n    goldenrod:            '#DAA520',\n    gray:                 '#808080',\n    grey:                 '#808080',\n    green:                '#008000',\n    greenyellow:          '#ADFF2F',\n    honeydew:             '#F0FFF0',\n    hotpink:              '#FF69B4',\n    indianred:            '#CD5C5C',\n    indigo:               '#4B0082',\n    ivory:                '#FFFFF0',\n    khaki:                '#F0E68C',\n    lavender:             '#E6E6FA',\n    lavenderblush:        '#FFF0F5',\n    lawngreen:            '#7CFC00',\n    lemonchiffon:         '#FFFACD',\n    lightblue:            '#ADD8E6',\n    lightcoral:           '#F08080',\n    lightcyan:            '#E0FFFF',\n    lightgoldenrodyellow: '#FAFAD2',\n    lightgray:            '#D3D3D3',\n    lightgrey:            '#D3D3D3',\n    lightgreen:           '#90EE90',\n    lightpink:            '#FFB6C1',\n    lightsalmon:          '#FFA07A',\n    lightseagreen:        '#20B2AA',\n    lightskyblue:         '#87CEFA',\n    lightslategray:       '#778899',\n    lightslategrey:       '#778899',\n    lightsteelblue:       '#B0C4DE',\n    lightyellow:          '#FFFFE0',\n    lime:                 '#00FF00',\n    limegreen:            '#32CD32',\n    linen:                '#FAF0E6',\n    magenta:              '#FF00FF',\n    maroon:               '#800000',\n    mediumaquamarine:     '#66CDAA',\n    mediumblue:           '#0000CD',\n    mediumorchid:         '#BA55D3',\n    mediumpurple:         '#9370DB',\n    mediumseagreen:       '#3CB371',\n    mediumslateblue:      '#7B68EE',\n    mediumspringgreen:    '#00FA9A',\n    mediumturquoise:      '#48D1CC',\n    mediumvioletred:      '#C71585',\n    midnightblue:         '#191970',\n    mintcream:            '#F5FFFA',\n    mistyrose:            '#FFE4E1',\n    moccasin:             '#FFE4B5',\n    navajowhite:          '#FFDEAD',\n    navy:                 '#000080',\n    oldlace:              '#FDF5E6',\n    olive:                '#808000',\n    olivedrab:            '#6B8E23',\n    orange:               '#FFA500',\n    orangered:            '#FF4500',\n    orchid:               '#DA70D6',\n    palegoldenrod:        '#EEE8AA',\n    palegreen:            '#98FB98',\n    paleturquoise:        '#AFEEEE',\n    palevioletred:        '#DB7093',\n    papayawhip:           '#FFEFD5',\n    peachpuff:            '#FFDAB9',\n    peru:                 '#CD853F',\n    pink:                 '#FFC0CB',\n    plum:                 '#DDA0DD',\n    powderblue:           '#B0E0E6',\n    purple:               '#800080',\n    rebeccapurple:        '#663399',\n    red:                  '#FF0000',\n    rosybrown:            '#BC8F8F',\n    royalblue:            '#4169E1',\n    saddlebrown:          '#8B4513',\n    salmon:               '#FA8072',\n    sandybrown:           '#F4A460',\n    seagreen:             '#2E8B57',\n    seashell:             '#FFF5EE',\n    sienna:               '#A0522D',\n    silver:               '#C0C0C0',\n    skyblue:              '#87CEEB',\n    slateblue:            '#6A5ACD',\n    slategray:            '#708090',\n    slategrey:            '#708090',\n    snow:                 '#FFFAFA',\n    springgreen:          '#00FF7F',\n    steelblue:            '#4682B4',\n    tan:                  '#D2B48C',\n    teal:                 '#008080',\n    thistle:              '#D8BFD8',\n    tomato:               '#FF6347',\n    turquoise:            '#40E0D0',\n    violet:               '#EE82EE',\n    wheat:                '#F5DEB3',\n    white:                '#FFFFFF',\n    whitesmoke:           '#F5F5F5',\n    yellow:               '#FFFF00',\n    yellowgreen:          '#9ACD32'\n  };\n\n  /**\n   * @private\n   * @param {Number} p\n   * @param {Number} q\n   * @param {Number} t\n   * @return {Number}\n   */\n  function hue2rgb(p, q, t) {\n    if (t < 0) {\n      t += 1;\n    }\n    if (t > 1) {\n      t -= 1;\n    }\n    if (t < 1 / 6) {\n      return p + (q - p) * 6 * t;\n    }\n    if (t < 1 / 2) {\n      return q;\n    }\n    if (t < 2 / 3) {\n      return p + (q - p) * (2 / 3 - t) * 6;\n    }\n    return p;\n  }\n\n  /**\n   * Returns new color object, when given a color in RGB format\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: rgb(0-255,0-255,0-255)\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromRgb = function(color) {\n    return Color.fromSource(Color.sourceFromRgb(color));\n  };\n\n  /**\n   * Returns array representation (ex: [100, 100, 200, 1]) of a color that's in RGB or RGBA format\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: rgb(0-255,0-255,0-255), rgb(0%-100%,0%-100%,0%-100%)\n   * @return {Array} source\n   */\n  fabric.Color.sourceFromRgb = function(color) {\n    var match = color.match(Color.reRGBa);\n    if (match) {\n      var r = parseInt(match[1], 10) / (/%$/.test(match[1]) ? 100 : 1) * (/%$/.test(match[1]) ? 255 : 1),\n          g = parseInt(match[2], 10) / (/%$/.test(match[2]) ? 100 : 1) * (/%$/.test(match[2]) ? 255 : 1),\n          b = parseInt(match[3], 10) / (/%$/.test(match[3]) ? 100 : 1) * (/%$/.test(match[3]) ? 255 : 1);\n\n      return [\n        parseInt(r, 10),\n        parseInt(g, 10),\n        parseInt(b, 10),\n        match[4] ? parseFloat(match[4]) : 1\n      ];\n    }\n  };\n\n  /**\n   * Returns new color object, when given a color in RGBA format\n   * @static\n   * @function\n   * @memberOf fabric.Color\n   * @param {String} color\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromRgba = Color.fromRgb;\n\n  /**\n   * Returns new color object, when given a color in HSL format\n   * @param {String} color Color value ex: hsl(0-260,0%-100%,0%-100%)\n   * @memberOf fabric.Color\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromHsl = function(color) {\n    return Color.fromSource(Color.sourceFromHsl(color));\n  };\n\n  /**\n   * Returns array representation (ex: [100, 100, 200, 1]) of a color that's in HSL or HSLA format.\n   * Adapted from <a href=\"https://rawgithub.com/mjijackson/mjijackson.github.com/master/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript.html\">https://github.com/mjijackson</a>\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: hsl(0-360,0%-100%,0%-100%) or hsla(0-360,0%-100%,0%-100%, 0-1)\n   * @return {Array} source\n   * @see http://http://www.w3.org/TR/css3-color/#hsl-color\n   */\n  fabric.Color.sourceFromHsl = function(color) {\n    var match = color.match(Color.reHSLa);\n    if (!match) {\n      return;\n    }\n\n    var h = (((parseFloat(match[1]) % 360) + 360) % 360) / 360,\n        s = parseFloat(match[2]) / (/%$/.test(match[2]) ? 100 : 1),\n        l = parseFloat(match[3]) / (/%$/.test(match[3]) ? 100 : 1),\n        r, g, b;\n\n    if (s === 0) {\n      r = g = b = l;\n    }\n    else {\n      var q = l <= 0.5 ? l * (s + 1) : l + s - l * s,\n          p = l * 2 - q;\n\n      r = hue2rgb(p, q, h + 1 / 3);\n      g = hue2rgb(p, q, h);\n      b = hue2rgb(p, q, h - 1 / 3);\n    }\n\n    return [\n      Math.round(r * 255),\n      Math.round(g * 255),\n      Math.round(b * 255),\n      match[4] ? parseFloat(match[4]) : 1\n    ];\n  };\n\n  /**\n   * Returns new color object, when given a color in HSLA format\n   * @static\n   * @function\n   * @memberOf fabric.Color\n   * @param {String} color\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromHsla = Color.fromHsl;\n\n  /**\n   * Returns new color object, when given a color in HEX format\n   * @static\n   * @memberOf fabric.Color\n   * @param {String} color Color value ex: FF5555\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromHex = function(color) {\n    return Color.fromSource(Color.sourceFromHex(color));\n  };\n\n  /**\n   * Returns array representation (ex: [100, 100, 200, 1]) of a color that's in HEX format\n   * @static\n   * @memberOf fabric.Color\n   * @param {String} color ex: FF5555 or FF5544CC (RGBa)\n   * @return {Array} source\n   */\n  fabric.Color.sourceFromHex = function(color) {\n    if (color.match(Color.reHex)) {\n      var value = color.slice(color.indexOf('#') + 1),\n          isShortNotation = (value.length === 3 || value.length === 4),\n          isRGBa = (value.length === 8 || value.length === 4),\n          r = isShortNotation ? (value.charAt(0) + value.charAt(0)) : value.substring(0, 2),\n          g = isShortNotation ? (value.charAt(1) + value.charAt(1)) : value.substring(2, 4),\n          b = isShortNotation ? (value.charAt(2) + value.charAt(2)) : value.substring(4, 6),\n          a = isRGBa ? (isShortNotation ? (value.charAt(3) + value.charAt(3)) : value.substring(6, 8)) : 'FF';\n\n      return [\n        parseInt(r, 16),\n        parseInt(g, 16),\n        parseInt(b, 16),\n        parseFloat((parseInt(a, 16) / 255).toFixed(2))\n      ];\n    }\n  };\n\n  /**\n   * Returns new color object, when given color in array representation (ex: [200, 100, 100, 0.5])\n   * @static\n   * @memberOf fabric.Color\n   * @param {Array} source\n   * @return {fabric.Color}\n   */\n  fabric.Color.fromSource = function(source) {\n    var oColor = new Color();\n    oColor.setSource(source);\n    return oColor;\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n\n  /* _FROM_SVG_START_ */\n  function getColorStop(el, multiplier) {\n    var style = el.getAttribute('style'),\n        offset = el.getAttribute('offset') || 0,\n        color, colorAlpha, opacity, i;\n\n    // convert percents to absolute values\n    offset = parseFloat(offset) / (/%$/.test(offset) ? 100 : 1);\n    offset = offset < 0 ? 0 : offset > 1 ? 1 : offset;\n    if (style) {\n      var keyValuePairs = style.split(/\\s*;\\s*/);\n\n      if (keyValuePairs[keyValuePairs.length - 1] === '') {\n        keyValuePairs.pop();\n      }\n\n      for (i = keyValuePairs.length; i--; ) {\n\n        var split = keyValuePairs[i].split(/\\s*:\\s*/),\n            key = split[0].trim(),\n            value = split[1].trim();\n\n        if (key === 'stop-color') {\n          color = value;\n        }\n        else if (key === 'stop-opacity') {\n          opacity = value;\n        }\n      }\n    }\n\n    if (!color) {\n      color = el.getAttribute('stop-color') || 'rgb(0,0,0)';\n    }\n    if (!opacity) {\n      opacity = el.getAttribute('stop-opacity');\n    }\n\n    color = new fabric.Color(color);\n    colorAlpha = color.getAlpha();\n    opacity = isNaN(parseFloat(opacity)) ? 1 : parseFloat(opacity);\n    opacity *= colorAlpha * multiplier;\n\n    return {\n      offset: offset,\n      color: color.toRgb(),\n      opacity: opacity\n    };\n  }\n\n  function getLinearCoords(el) {\n    return {\n      x1: el.getAttribute('x1') || 0,\n      y1: el.getAttribute('y1') || 0,\n      x2: el.getAttribute('x2') || '100%',\n      y2: el.getAttribute('y2') || 0\n    };\n  }\n\n  function getRadialCoords(el) {\n    return {\n      x1: el.getAttribute('fx') || el.getAttribute('cx') || '50%',\n      y1: el.getAttribute('fy') || el.getAttribute('cy') || '50%',\n      r1: 0,\n      x2: el.getAttribute('cx') || '50%',\n      y2: el.getAttribute('cy') || '50%',\n      r2: el.getAttribute('r') || '50%'\n    };\n  }\n  /* _FROM_SVG_END_ */\n\n  var clone = fabric.util.object.clone;\n\n  /**\n   * Gradient class\n   * @class fabric.Gradient\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#gradients}\n   * @see {@link fabric.Gradient#initialize} for constructor definition\n   */\n  fabric.Gradient = fabric.util.createClass(/** @lends fabric.Gradient.prototype */ {\n\n    /**\n     * Horizontal offset for aligning gradients coming from SVG when outside pathgroups\n     * @type Number\n     * @default 0\n     */\n    offsetX: 0,\n\n    /**\n     * Vertical offset for aligning gradients coming from SVG when outside pathgroups\n     * @type Number\n     * @default 0\n     */\n    offsetY: 0,\n\n    /**\n     * A transform matrix to apply to the gradient before painting.\n     * Imported from svg gradients, is not applied with the current transform in the center.\n     * Before this transform is applied, the origin point is at the top left corner of the object\n     * plus the addition of offsetY and offsetX.\n     * @type Number[]\n     * @default null\n     */\n    gradientTransform: null,\n\n    /**\n     * coordinates units for coords.\n     * If `pixels`, the number of coords are in the same unit of width / height.\n     * If set as `percentage` the coords are still a number, but 1 means 100% of width\n     * for the X and 100% of the height for the y. It can be bigger than 1 and negative.\n     * allowed values pixels or percentage.\n     * @type String\n     * @default 'pixels'\n     */\n    gradientUnits: 'pixels',\n\n    /**\n     * Gradient type linear or radial\n     * @type String\n     * @default 'pixels'\n     */\n    type: 'linear',\n\n    /**\n     * Constructor\n     * @param {Object} options Options object with type, coords, gradientUnits and colorStops\n     * @param {Object} [options.type] gradient type linear or radial\n     * @param {Object} [options.gradientUnits] gradient units\n     * @param {Object} [options.offsetX] SVG import compatibility\n     * @param {Object} [options.offsetY] SVG import compatibility\n     * @param {Object[]} options.colorStops contains the colorstops.\n     * @param {Object} options.coords contains the coords of the gradient\n     * @param {Number} [options.coords.x1] X coordiante of the first point for linear or of the focal point for radial\n     * @param {Number} [options.coords.y1] Y coordiante of the first point for linear or of the focal point for radial\n     * @param {Number} [options.coords.x2] X coordiante of the second point for linear or of the center point for radial\n     * @param {Number} [options.coords.y2] Y coordiante of the second point for linear or of the center point for radial\n     * @param {Number} [options.coords.r1] only for radial gradient, radius of the inner circle\n     * @param {Number} [options.coords.r2] only for radial gradient, radius of the external circle\n     * @return {fabric.Gradient} thisArg\n     */\n    initialize: function(options) {\n      options || (options = { });\n      options.coords || (options.coords = { });\n\n      var coords, _this = this;\n\n      // sets everything, then coords and colorstops get sets again\n      Object.keys(options).forEach(function(option) {\n        _this[option] = options[option];\n      });\n\n      if (this.id) {\n        this.id += '_' + fabric.Object.__uid++;\n      }\n      else {\n        this.id = fabric.Object.__uid++;\n      }\n\n      coords = {\n        x1: options.coords.x1 || 0,\n        y1: options.coords.y1 || 0,\n        x2: options.coords.x2 || 0,\n        y2: options.coords.y2 || 0\n      };\n\n      if (this.type === 'radial') {\n        coords.r1 = options.coords.r1 || 0;\n        coords.r2 = options.coords.r2 || 0;\n      }\n\n      this.coords = coords;\n      this.colorStops = options.colorStops.slice();\n    },\n\n    /**\n     * Adds another colorStop\n     * @param {Object} colorStop Object with offset and color\n     * @return {fabric.Gradient} thisArg\n     */\n    addColorStop: function(colorStops) {\n      for (var position in colorStops) {\n        var color = new fabric.Color(colorStops[position]);\n        this.colorStops.push({\n          offset: parseFloat(position),\n          color: color.toRgb(),\n          opacity: color.getAlpha()\n        });\n      }\n      return this;\n    },\n\n    /**\n     * Returns object representation of a gradient\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object}\n     */\n    toObject: function(propertiesToInclude) {\n      var object = {\n        type: this.type,\n        coords: this.coords,\n        colorStops: this.colorStops,\n        offsetX: this.offsetX,\n        offsetY: this.offsetY,\n        gradientUnits: this.gradientUnits,\n        gradientTransform: this.gradientTransform ? this.gradientTransform.concat() : this.gradientTransform\n      };\n      fabric.util.populateWithProperties(this, object, propertiesToInclude);\n\n      return object;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns SVG representation of an gradient\n     * @param {Object} object Object to create a gradient for\n     * @return {String} SVG representation of an gradient (linear/radial)\n     */\n    toSVG: function(object, options) {\n      var coords = clone(this.coords, true), i, len, options = options || {},\n          markup, commonAttributes, colorStops = clone(this.colorStops, true),\n          needsSwap = coords.r1 > coords.r2,\n          transform = this.gradientTransform ? this.gradientTransform.concat() : fabric.iMatrix.concat(),\n          offsetX = -this.offsetX, offsetY = -this.offsetY,\n          withViewport = !!options.additionalTransform,\n          gradientUnits = this.gradientUnits === 'pixels' ? 'userSpaceOnUse' : 'objectBoundingBox';\n      // colorStops must be sorted ascending\n      colorStops.sort(function(a, b) {\n        return a.offset - b.offset;\n      });\n\n      if (gradientUnits === 'objectBoundingBox') {\n        offsetX /= object.width;\n        offsetY /= object.height;\n      }\n      else {\n        offsetX += object.width / 2;\n        offsetY += object.height / 2;\n      }\n      if (object.type === 'path') {\n        offsetX -= object.pathOffset.x;\n        offsetY -= object.pathOffset.y;\n      }\n\n\n      transform[4] -= offsetX;\n      transform[5] -= offsetY;\n\n      commonAttributes = 'id=\"SVGID_' + this.id +\n                     '\" gradientUnits=\"' + gradientUnits + '\"';\n      commonAttributes += ' gradientTransform=\"' + (withViewport ?\n        options.additionalTransform + ' ' : '') + fabric.util.matrixToSVG(transform) + '\" ';\n\n      if (this.type === 'linear') {\n        markup = [\n          '<linearGradient ',\n          commonAttributes,\n          ' x1=\"', coords.x1,\n          '\" y1=\"', coords.y1,\n          '\" x2=\"', coords.x2,\n          '\" y2=\"', coords.y2,\n          '\">\\n'\n        ];\n      }\n      else if (this.type === 'radial') {\n        // svg radial gradient has just 1 radius. the biggest.\n        markup = [\n          '<radialGradient ',\n          commonAttributes,\n          ' cx=\"', needsSwap ? coords.x1 : coords.x2,\n          '\" cy=\"', needsSwap ? coords.y1 : coords.y2,\n          '\" r=\"', needsSwap ? coords.r1 : coords.r2,\n          '\" fx=\"', needsSwap ? coords.x2 : coords.x1,\n          '\" fy=\"', needsSwap ? coords.y2 : coords.y1,\n          '\">\\n'\n        ];\n      }\n\n      if (this.type === 'radial') {\n        if (needsSwap) {\n          // svg goes from internal to external radius. if radius are inverted, swap color stops.\n          colorStops = colorStops.concat();\n          colorStops.reverse();\n          for (i = 0, len = colorStops.length; i < len; i++) {\n            colorStops[i].offset = 1 - colorStops[i].offset;\n          }\n        }\n        var minRadius = Math.min(coords.r1, coords.r2);\n        if (minRadius > 0) {\n          // i have to shift all colorStops and add new one in 0.\n          var maxRadius = Math.max(coords.r1, coords.r2),\n              percentageShift = minRadius / maxRadius;\n          for (i = 0, len = colorStops.length; i < len; i++) {\n            colorStops[i].offset += percentageShift * (1 - colorStops[i].offset);\n          }\n        }\n      }\n\n      for (i = 0, len = colorStops.length; i < len; i++) {\n        var colorStop = colorStops[i];\n        markup.push(\n          '<stop ',\n          'offset=\"', (colorStop.offset * 100) + '%',\n          '\" style=\"stop-color:', colorStop.color,\n          (typeof colorStop.opacity !== 'undefined' ? ';stop-opacity: ' + colorStop.opacity : ';'),\n          '\"/>\\n'\n        );\n      }\n\n      markup.push((this.type === 'linear' ? '</linearGradient>\\n' : '</radialGradient>\\n'));\n\n      return markup.join('');\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns an instance of CanvasGradient\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {fabric.Object} object the fabric.Object for which the gradient is\n     * @return {CanvasGradient}\n     */\n    toLive: function(ctx, object) {\n      var gradient, coords = fabric.util.object.clone(this.coords), i, len,\n          x1 = coords.x1, y1 = coords.y1, x2 = coords.x2, y2 = coords.y2,\n          stops = this.colorStops;\n\n      if (!this.type) {\n        return;\n      }\n\n      if (object instanceof fabric.Text && this.gradientUnits === 'percentage') {\n        x1 *= object.width;\n        y1 *= object.height;\n        x2 *= object.width;\n        y2 *= object.height;\n      }\n      if (this.type === 'linear') {\n        gradient = ctx.createLinearGradient(x1, y1, x2, y2);\n      }\n      else if (this.type === 'radial') {\n        gradient = ctx.createRadialGradient(x1, y1, coords.r1, x2, y2, coords.r2);\n      }\n      for (i = 0, len = stops.length; i < len; i++) {\n        var color = stops[i].color,\n            opacity = stops[i].opacity,\n            offset = stops[i].offset;\n\n        if (typeof opacity !== 'undefined') {\n          color = new fabric.Color(color).setAlpha(opacity).toRgba();\n        }\n        gradient.addColorStop(offset, color);\n      }\n\n      return gradient;\n    }\n  });\n\n  fabric.util.object.extend(fabric.Gradient, {\n\n    /* _FROM_SVG_START_ */\n    /**\n     * Returns {@link fabric.Gradient} instance from an SVG element\n     * @static\n     * @memberOf fabric.Gradient\n     * @param {SVGGradientElement} el SVG gradient element\n     * @param {fabric.Object} instance\n     * @param {String} opacityAttr A fill-opacity or stroke-opacity attribute to multiply to each stop's opacity.\n     * @param {Object} svgOptions an object containing the size of the SVG in order to parse correctly graidents\n     * that uses gradientUnits as 'userSpaceOnUse' and percentages.\n     * @param {Object.number} viewBoxWidth width part of the viewBox attribute on svg\n     * @param {Object.number} viewBoxHeight height part of the viewBox attribute on svg\n     * @param {Object.number} width width part of the svg tag if viewBox is not specified\n     * @param {Object.number} height height part of the svg tag if viewBox is not specified\n     * @return {fabric.Gradient} Gradient instance\n     * @see http://www.w3.org/TR/SVG/pservers.html#LinearGradientElement\n     * @see http://www.w3.org/TR/SVG/pservers.html#RadialGradientElement\n     */\n    fromElement: function(el, instance, opacityAttr, svgOptions) {\n      /**\n       *  @example:\n       *\n       *  <linearGradient id=\"linearGrad1\">\n       *    <stop offset=\"0%\" stop-color=\"white\"/>\n       *    <stop offset=\"100%\" stop-color=\"black\"/>\n       *  </linearGradient>\n       *\n       *  OR\n       *\n       *  <linearGradient id=\"linearGrad2\">\n       *    <stop offset=\"0\" style=\"stop-color:rgb(255,255,255)\"/>\n       *    <stop offset=\"1\" style=\"stop-color:rgb(0,0,0)\"/>\n       *  </linearGradient>\n       *\n       *  OR\n       *\n       *  <radialGradient id=\"radialGrad1\">\n       *    <stop offset=\"0%\" stop-color=\"white\" stop-opacity=\"1\" />\n       *    <stop offset=\"50%\" stop-color=\"black\" stop-opacity=\"0.5\" />\n       *    <stop offset=\"100%\" stop-color=\"white\" stop-opacity=\"1\" />\n       *  </radialGradient>\n       *\n       *  OR\n       *\n       *  <radialGradient id=\"radialGrad2\">\n       *    <stop offset=\"0\" stop-color=\"rgb(255,255,255)\" />\n       *    <stop offset=\"0.5\" stop-color=\"rgb(0,0,0)\" />\n       *    <stop offset=\"1\" stop-color=\"rgb(255,255,255)\" />\n       *  </radialGradient>\n       *\n       */\n\n      var multiplier = parseFloat(opacityAttr) / (/%$/.test(opacityAttr) ? 100 : 1);\n      multiplier = multiplier < 0 ? 0 : multiplier > 1 ? 1 : multiplier;\n      if (isNaN(multiplier)) {\n        multiplier = 1;\n      }\n\n      var colorStopEls = el.getElementsByTagName('stop'),\n          type,\n          gradientUnits = el.getAttribute('gradientUnits') === 'userSpaceOnUse' ?\n            'pixels' : 'percentage',\n          gradientTransform = el.getAttribute('gradientTransform') || '',\n          colorStops = [],\n          coords, i, offsetX = 0, offsetY = 0,\n          transformMatrix;\n      if (el.nodeName === 'linearGradient' || el.nodeName === 'LINEARGRADIENT') {\n        type = 'linear';\n        coords = getLinearCoords(el);\n      }\n      else {\n        type = 'radial';\n        coords = getRadialCoords(el);\n      }\n\n      for (i = colorStopEls.length; i--; ) {\n        colorStops.push(getColorStop(colorStopEls[i], multiplier));\n      }\n\n      transformMatrix = fabric.parseTransformAttribute(gradientTransform);\n\n      __convertPercentUnitsToValues(instance, coords, svgOptions, gradientUnits);\n\n      if (gradientUnits === 'pixels') {\n        offsetX = -instance.left;\n        offsetY = -instance.top;\n      }\n\n      var gradient = new fabric.Gradient({\n        id: el.getAttribute('id'),\n        type: type,\n        coords: coords,\n        colorStops: colorStops,\n        gradientUnits: gradientUnits,\n        gradientTransform: transformMatrix,\n        offsetX: offsetX,\n        offsetY: offsetY,\n      });\n\n      return gradient;\n    },\n    /* _FROM_SVG_END_ */\n\n    /**\n     * Returns {@link fabric.Gradient} instance from its object representation\n     * this function is uniquely used by Object.setGradient and is deprecated with it.\n     * @static\n     * @deprecated since 3.4.0\n     * @memberOf fabric.Gradient\n     * @param {Object} obj\n     * @param {Object} [options] Options object\n     */\n    forObject: function(obj, options) {\n      options || (options = { });\n      __convertPercentUnitsToValues(obj, options.coords, options.gradientUnits, {\n        // those values are to avoid errors. this function is uniquely used by\n        viewBoxWidth: 100,\n        viewBoxHeight: 100,\n      });\n      return new fabric.Gradient(options);\n    }\n  });\n\n  /**\n   * @private\n   */\n  function __convertPercentUnitsToValues(instance, options, svgOptions, gradientUnits) {\n    var propValue, finalValue;\n    Object.keys(options).forEach(function(prop) {\n      propValue = options[prop];\n      if (propValue === 'Infinity') {\n        finalValue = 1;\n      }\n      else if (propValue === '-Infinity') {\n        finalValue = 0;\n      }\n      else {\n        finalValue = parseFloat(options[prop], 10);\n        if (typeof propValue === 'string' && /^(\\d+\\.\\d+)%|(\\d+)%$/.test(propValue)) {\n          finalValue *= 0.01;\n          if (gradientUnits === 'pixels') {\n            // then we need to fix those percentages here in svg parsing\n            if (prop === 'x1' || prop === 'x2' || prop === 'r2') {\n              finalValue *= svgOptions.viewBoxWidth || svgOptions.width;\n            }\n            if (prop === 'y1' || prop === 'y2') {\n              finalValue *= svgOptions.viewBoxHeight || svgOptions.height;\n            }\n          }\n        }\n      }\n      options[prop] = finalValue;\n    });\n  }\n})();\n\n\n(function() {\n\n  'use strict';\n\n  var toFixed = fabric.util.toFixed;\n\n  /**\n   * Pattern class\n   * @class fabric.Pattern\n   * @see {@link http://fabricjs.com/patterns|Pattern demo}\n   * @see {@link http://fabricjs.com/dynamic-patterns|DynamicPattern demo}\n   * @see {@link fabric.Pattern#initialize} for constructor definition\n   */\n\n\n  fabric.Pattern = fabric.util.createClass(/** @lends fabric.Pattern.prototype */ {\n\n    /**\n     * Repeat property of a pattern (one of repeat, repeat-x, repeat-y or no-repeat)\n     * @type String\n     * @default\n     */\n    repeat: 'repeat',\n\n    /**\n     * Pattern horizontal offset from object's left/top corner\n     * @type Number\n     * @default\n     */\n    offsetX: 0,\n\n    /**\n     * Pattern vertical offset from object's left/top corner\n     * @type Number\n     * @default\n     */\n    offsetY: 0,\n\n    /**\n     * crossOrigin value (one of \"\", \"anonymous\", \"use-credentials\")\n     * @see https://developer.mozilla.org/en-US/docs/HTML/CORS_settings_attributes\n     * @type String\n     * @default\n     */\n    crossOrigin: '',\n\n    /**\n     * transform matrix to change the pattern, imported from svgs.\n     * @type Array\n     * @default\n     */\n    patternTransform: null,\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     * @param {Function} [callback] function to invoke after callback init.\n     * @return {fabric.Pattern} thisArg\n     */\n    initialize: function(options, callback) {\n      options || (options = { });\n\n      this.id = fabric.Object.__uid++;\n      this.setOptions(options);\n      if (!options.source || (options.source && typeof options.source !== 'string')) {\n        callback && callback(this);\n        return;\n      }\n      // function string\n      if (typeof fabric.util.getFunctionBody(options.source) !== 'undefined') {\n        this.source = new Function(fabric.util.getFunctionBody(options.source));\n        callback && callback(this);\n      }\n      else {\n        // img src string\n        var _this = this;\n        this.source = fabric.util.createImage();\n        fabric.util.loadImage(options.source, function(img) {\n          _this.source = img;\n          callback && callback(_this);\n        }, null, this.crossOrigin);\n      }\n    },\n\n    /**\n     * Returns object representation of a pattern\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of a pattern instance\n     */\n    toObject: function(propertiesToInclude) {\n      var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,\n          source, object;\n\n      // callback\n      if (typeof this.source === 'function') {\n        source = String(this.source);\n      }\n      // <img> element\n      else if (typeof this.source.src === 'string') {\n        source = this.source.src;\n      }\n      // <canvas> element\n      else if (typeof this.source === 'object' && this.source.toDataURL) {\n        source = this.source.toDataURL();\n      }\n\n      object = {\n        type: 'pattern',\n        source: source,\n        repeat: this.repeat,\n        crossOrigin: this.crossOrigin,\n        offsetX: toFixed(this.offsetX, NUM_FRACTION_DIGITS),\n        offsetY: toFixed(this.offsetY, NUM_FRACTION_DIGITS),\n        patternTransform: this.patternTransform ? this.patternTransform.concat() : null\n      };\n      fabric.util.populateWithProperties(this, object, propertiesToInclude);\n\n      return object;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns SVG representation of a pattern\n     * @param {fabric.Object} object\n     * @return {String} SVG representation of a pattern\n     */\n    toSVG: function(object) {\n      var patternSource = typeof this.source === 'function' ? this.source() : this.source,\n          patternWidth = patternSource.width / object.width,\n          patternHeight = patternSource.height / object.height,\n          patternOffsetX = this.offsetX / object.width,\n          patternOffsetY = this.offsetY / object.height,\n          patternImgSrc = '';\n      if (this.repeat === 'repeat-x' || this.repeat === 'no-repeat') {\n        patternHeight = 1;\n        if (patternOffsetY) {\n          patternHeight += Math.abs(patternOffsetY);\n        }\n      }\n      if (this.repeat === 'repeat-y' || this.repeat === 'no-repeat') {\n        patternWidth = 1;\n        if (patternOffsetX) {\n          patternWidth += Math.abs(patternOffsetX);\n        }\n\n      }\n      if (patternSource.src) {\n        patternImgSrc = patternSource.src;\n      }\n      else if (patternSource.toDataURL) {\n        patternImgSrc = patternSource.toDataURL();\n      }\n\n      return '<pattern id=\"SVGID_' + this.id +\n                    '\" x=\"' + patternOffsetX +\n                    '\" y=\"' + patternOffsetY +\n                    '\" width=\"' + patternWidth +\n                    '\" height=\"' + patternHeight + '\">\\n' +\n               '<image x=\"0\" y=\"0\"' +\n                      ' width=\"' + patternSource.width +\n                      '\" height=\"' + patternSource.height +\n                      '\" xlink:href=\"' + patternImgSrc +\n               '\"></image>\\n' +\n             '</pattern>\\n';\n    },\n    /* _TO_SVG_END_ */\n\n    setOptions: function(options) {\n      for (var prop in options) {\n        this[prop] = options[prop];\n      }\n    },\n\n    /**\n     * Returns an instance of CanvasPattern\n     * @param {CanvasRenderingContext2D} ctx Context to create pattern\n     * @return {CanvasPattern}\n     */\n    toLive: function(ctx) {\n      var source = typeof this.source === 'function' ? this.source() : this.source;\n\n      // if the image failed to load, return, and allow rest to continue loading\n      if (!source) {\n        return '';\n      }\n\n      // if an image\n      if (typeof source.src !== 'undefined') {\n        if (!source.complete) {\n          return '';\n        }\n        if (source.naturalWidth === 0 || source.naturalHeight === 0) {\n          return '';\n        }\n      }\n      return ctx.createPattern(source, this.repeat);\n    }\n  });\n})();\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      toFixed = fabric.util.toFixed;\n\n  if (fabric.Shadow) {\n    fabric.warn('fabric.Shadow is already defined.');\n    return;\n  }\n\n  /**\n   * Shadow class\n   * @class fabric.Shadow\n   * @see {@link http://fabricjs.com/shadows|Shadow demo}\n   * @see {@link fabric.Shadow#initialize} for constructor definition\n   */\n  fabric.Shadow = fabric.util.createClass(/** @lends fabric.Shadow.prototype */ {\n\n    /**\n     * Shadow color\n     * @type String\n     * @default\n     */\n    color: 'rgb(0,0,0)',\n\n    /**\n     * Shadow blur\n     * @type Number\n     */\n    blur: 0,\n\n    /**\n     * Shadow horizontal offset\n     * @type Number\n     * @default\n     */\n    offsetX: 0,\n\n    /**\n     * Shadow vertical offset\n     * @type Number\n     * @default\n     */\n    offsetY: 0,\n\n    /**\n     * Whether the shadow should affect stroke operations\n     * @type Boolean\n     * @default\n     */\n    affectStroke: false,\n\n    /**\n     * Indicates whether toObject should include default values\n     * @type Boolean\n     * @default\n     */\n    includeDefaultValues: true,\n\n    /**\n     * When `false`, the shadow will scale with the object.\n     * When `true`, the shadow's offsetX, offsetY, and blur will not be affected by the object's scale.\n     * default to false\n     * @type Boolean\n     * @default\n     */\n    nonScaling: false,\n\n    /**\n     * Constructor\n     * @param {Object|String} [options] Options object with any of color, blur, offsetX, offsetY properties or string (e.g. \"rgba(0,0,0,0.2) 2px 2px 10px\")\n     * @return {fabric.Shadow} thisArg\n     */\n    initialize: function(options) {\n\n      if (typeof options === 'string') {\n        options = this._parseShadow(options);\n      }\n\n      for (var prop in options) {\n        this[prop] = options[prop];\n      }\n\n      this.id = fabric.Object.__uid++;\n    },\n\n    /**\n     * @private\n     * @param {String} shadow Shadow value to parse\n     * @return {Object} Shadow object with color, offsetX, offsetY and blur\n     */\n    _parseShadow: function(shadow) {\n      var shadowStr = shadow.trim(),\n          offsetsAndBlur = fabric.Shadow.reOffsetsAndBlur.exec(shadowStr) || [],\n          color = shadowStr.replace(fabric.Shadow.reOffsetsAndBlur, '') || 'rgb(0,0,0)';\n\n      return {\n        color: color.trim(),\n        offsetX: parseInt(offsetsAndBlur[1], 10) || 0,\n        offsetY: parseInt(offsetsAndBlur[2], 10) || 0,\n        blur: parseInt(offsetsAndBlur[3], 10) || 0\n      };\n    },\n\n    /**\n     * Returns a string representation of an instance\n     * @see http://www.w3.org/TR/css-text-decor-3/#text-shadow\n     * @return {String} Returns CSS3 text-shadow declaration\n     */\n    toString: function() {\n      return [this.offsetX, this.offsetY, this.blur, this.color].join('px ');\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns SVG representation of a shadow\n     * @param {fabric.Object} object\n     * @return {String} SVG representation of a shadow\n     */\n    toSVG: function(object) {\n      var fBoxX = 40, fBoxY = 40, NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,\n          offset = fabric.util.rotateVector(\n            { x: this.offsetX, y: this.offsetY },\n            fabric.util.degreesToRadians(-object.angle)),\n          BLUR_BOX = 20, color = new fabric.Color(this.color);\n\n      if (object.width && object.height) {\n        //http://www.w3.org/TR/SVG/filters.html#FilterEffectsRegion\n        // we add some extra space to filter box to contain the blur ( 20 )\n        fBoxX = toFixed((Math.abs(offset.x) + this.blur) / object.width, NUM_FRACTION_DIGITS) * 100 + BLUR_BOX;\n        fBoxY = toFixed((Math.abs(offset.y) + this.blur) / object.height, NUM_FRACTION_DIGITS) * 100 + BLUR_BOX;\n      }\n      if (object.flipX) {\n        offset.x *= -1;\n      }\n      if (object.flipY) {\n        offset.y *= -1;\n      }\n\n      return (\n        '<filter id=\"SVGID_' + this.id + '\" y=\"-' + fBoxY + '%\" height=\"' + (100 + 2 * fBoxY) + '%\" ' +\n          'x=\"-' + fBoxX + '%\" width=\"' + (100 + 2 * fBoxX) + '%\" ' + '>\\n' +\n          '\\t<feGaussianBlur in=\"SourceAlpha\" stdDeviation=\"' +\n            toFixed(this.blur ? this.blur / 2 : 0, NUM_FRACTION_DIGITS) + '\"></feGaussianBlur>\\n' +\n          '\\t<feOffset dx=\"' + toFixed(offset.x, NUM_FRACTION_DIGITS) +\n          '\" dy=\"' + toFixed(offset.y, NUM_FRACTION_DIGITS) + '\" result=\"oBlur\" ></feOffset>\\n' +\n          '\\t<feFlood flood-color=\"' + color.toRgb() + '\" flood-opacity=\"' + color.getAlpha() + '\"/>\\n' +\n          '\\t<feComposite in2=\"oBlur\" operator=\"in\" />\\n' +\n          '\\t<feMerge>\\n' +\n            '\\t\\t<feMergeNode></feMergeNode>\\n' +\n            '\\t\\t<feMergeNode in=\"SourceGraphic\"></feMergeNode>\\n' +\n          '\\t</feMerge>\\n' +\n        '</filter>\\n');\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns object representation of a shadow\n     * @return {Object} Object representation of a shadow instance\n     */\n    toObject: function() {\n      if (this.includeDefaultValues) {\n        return {\n          color: this.color,\n          blur: this.blur,\n          offsetX: this.offsetX,\n          offsetY: this.offsetY,\n          affectStroke: this.affectStroke,\n          nonScaling: this.nonScaling\n        };\n      }\n      var obj = { }, proto = fabric.Shadow.prototype;\n\n      ['color', 'blur', 'offsetX', 'offsetY', 'affectStroke', 'nonScaling'].forEach(function(prop) {\n        if (this[prop] !== proto[prop]) {\n          obj[prop] = this[prop];\n        }\n      }, this);\n\n      return obj;\n    }\n  });\n\n  /**\n   * Regex matching shadow offsetX, offsetY and blur (ex: \"2px 2px 10px rgba(0,0,0,0.2)\", \"rgb(0,255,0) 2px 2px\")\n   * @static\n   * @field\n   * @memberOf fabric.Shadow\n   */\n  // eslint-disable-next-line max-len\n  fabric.Shadow.reOffsetsAndBlur = /(?:\\s|^)(-?\\d+(?:px)?(?:\\s?|$))?(-?\\d+(?:px)?(?:\\s?|$))?(\\d+(?:px)?)?(?:\\s?|$)(?:$|\\s)/;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function () {\n\n  'use strict';\n\n  if (fabric.StaticCanvas) {\n    fabric.warn('fabric.StaticCanvas is already defined.');\n    return;\n  }\n\n  // aliases for faster resolution\n  var extend = fabric.util.object.extend,\n      getElementOffset = fabric.util.getElementOffset,\n      removeFromArray = fabric.util.removeFromArray,\n      toFixed = fabric.util.toFixed,\n      transformPoint = fabric.util.transformPoint,\n      invertTransform = fabric.util.invertTransform,\n      getNodeCanvas = fabric.util.getNodeCanvas,\n      createCanvasElement = fabric.util.createCanvasElement,\n\n      CANVAS_INIT_ERROR = new Error('Could not initialize `canvas` element');\n\n  /**\n   * Static canvas class\n   * @class fabric.StaticCanvas\n   * @mixes fabric.Collection\n   * @mixes fabric.Observable\n   * @see {@link http://fabricjs.com/static_canvas|StaticCanvas demo}\n   * @see {@link fabric.StaticCanvas#initialize} for constructor definition\n   * @fires before:render\n   * @fires after:render\n   * @fires canvas:cleared\n   * @fires object:added\n   * @fires object:removed\n   */\n  fabric.StaticCanvas = fabric.util.createClass(fabric.CommonMethods, /** @lends fabric.StaticCanvas.prototype */ {\n\n    /**\n     * Constructor\n     * @param {HTMLElement | String} el &lt;canvas> element to initialize instance on\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(el, options) {\n      options || (options = { });\n      this.renderAndResetBound = this.renderAndReset.bind(this);\n      this.requestRenderAllBound = this.requestRenderAll.bind(this);\n      this._initStatic(el, options);\n    },\n\n    /**\n     * Background color of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setBackgroundColor}.\n     * @type {(String|fabric.Pattern)}\n     * @default\n     */\n    backgroundColor: '',\n\n    /**\n     * Background image of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setBackgroundImage}.\n     * <b>Backwards incompatibility note:</b> The \"backgroundImageOpacity\"\n     * and \"backgroundImageStretch\" properties are deprecated since 1.3.9.\n     * Use {@link fabric.Image#opacity}, {@link fabric.Image#width} and {@link fabric.Image#height}.\n     * since 2.4.0 image caching is active, please when putting an image as background, add to the\n     * canvas property a reference to the canvas it is on. Otherwise the image cannot detect the zoom\n     * vale. As an alternative you can disable image objectCaching\n     * @type fabric.Image\n     * @default\n     */\n    backgroundImage: null,\n\n    /**\n     * Overlay color of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setOverlayColor}\n     * @since 1.3.9\n     * @type {(String|fabric.Pattern)}\n     * @default\n     */\n    overlayColor: '',\n\n    /**\n     * Overlay image of canvas instance.\n     * Should be set via {@link fabric.StaticCanvas#setOverlayImage}.\n     * <b>Backwards incompatibility note:</b> The \"overlayImageLeft\"\n     * and \"overlayImageTop\" properties are deprecated since 1.3.9.\n     * Use {@link fabric.Image#left} and {@link fabric.Image#top}.\n     * since 2.4.0 image caching is active, please when putting an image as overlay, add to the\n     * canvas property a reference to the canvas it is on. Otherwise the image cannot detect the zoom\n     * vale. As an alternative you can disable image objectCaching\n     * @type fabric.Image\n     * @default\n     */\n    overlayImage: null,\n\n    /**\n     * Indicates whether toObject/toDatalessObject should include default values\n     * if set to false, takes precedence over the object value.\n     * @type Boolean\n     * @default\n     */\n    includeDefaultValues: true,\n\n    /**\n     * Indicates whether objects' state should be saved\n     * @type Boolean\n     * @default\n     */\n    stateful: false,\n\n    /**\n     * Indicates whether {@link fabric.Collection.add}, {@link fabric.Collection.insertAt} and {@link fabric.Collection.remove},\n     * {@link fabric.StaticCanvas.moveTo}, {@link fabric.StaticCanvas.clear} and many more, should also re-render canvas.\n     * Disabling this option will not give a performance boost when adding/removing a lot of objects to/from canvas at once\n     * since the renders are quequed and executed one per frame.\n     * Disabling is suggested anyway and managing the renders of the app manually is not a big effort ( canvas.requestRenderAll() )\n     * Left default to true to do not break documentation and old app, fiddles.\n     * @type Boolean\n     * @default\n     */\n    renderOnAddRemove: true,\n\n    /**\n     * Function that determines clipping of entire canvas area\n     * Being passed context as first argument.\n     * If you are using code minification, ctx argument can be minified/manglied you should use\n     * as a workaround `var ctx = arguments[0];` in the function;\n     * See clipping canvas area in {@link https://github.com/kangax/fabric.js/wiki/FAQ}\n     * @deprecated since 2.0.0\n     * @type Function\n     * @default\n     */\n    clipTo: null,\n\n    /**\n     * Indicates whether object controls (borders/controls) are rendered above overlay image\n     * @type Boolean\n     * @default\n     */\n    controlsAboveOverlay: false,\n\n    /**\n     * Indicates whether the browser can be scrolled when using a touchscreen and dragging on the canvas\n     * @type Boolean\n     * @default\n     */\n    allowTouchScrolling: false,\n\n    /**\n     * Indicates whether this canvas will use image smoothing, this is on by default in browsers\n     * @type Boolean\n     * @default\n     */\n    imageSmoothingEnabled: true,\n\n    /**\n     * The transformation (in the format of Canvas transform) which focuses the viewport\n     * @type Array\n     * @default\n     */\n    viewportTransform: fabric.iMatrix.concat(),\n\n    /**\n     * if set to false background image is not affected by viewport transform\n     * @since 1.6.3\n     * @type Boolean\n     * @default\n     */\n    backgroundVpt: true,\n\n    /**\n     * if set to false overlya image is not affected by viewport transform\n     * @since 1.6.3\n     * @type Boolean\n     * @default\n     */\n    overlayVpt: true,\n\n    /**\n     * Callback; invoked right before object is about to be scaled/rotated\n     * @deprecated since 2.3.0\n     * Use before:transform event\n     */\n    onBeforeScaleRotate: function () {\n      /* NOOP */\n    },\n\n    /**\n     * When true, canvas is scaled by devicePixelRatio for better rendering on retina screens\n     * @type Boolean\n     * @default\n     */\n    enableRetinaScaling: true,\n\n    /**\n     * Describe canvas element extension over design\n     * properties are tl,tr,bl,br.\n     * if canvas is not zoomed/panned those points are the four corner of canvas\n     * if canvas is viewportTransformed you those points indicate the extension\n     * of canvas element in plain untrasformed coordinates\n     * The coordinates get updated with @method calcViewportBoundaries.\n     * @memberOf fabric.StaticCanvas.prototype\n     */\n    vptCoords: { },\n\n    /**\n     * Based on vptCoords and object.aCoords, skip rendering of objects that\n     * are not included in current viewport.\n     * May greatly help in applications with crowded canvas and use of zoom/pan\n     * If One of the corner of the bounding box of the object is on the canvas\n     * the objects get rendered.\n     * @memberOf fabric.StaticCanvas.prototype\n     * @type Boolean\n     * @default\n     */\n    skipOffscreen: true,\n\n    /**\n     * a fabricObject that, without stroke define a clipping area with their shape. filled in black\n     * the clipPath object gets used when the canvas has rendered, and the context is placed in the\n     * top left corner of the canvas.\n     * clipPath will clip away controls, if you do not want this to happen use controlsAboveOverlay = true\n     * @type fabric.Object\n     */\n    clipPath: undefined,\n\n    /**\n     * @private\n     * @param {HTMLElement | String} el &lt;canvas> element to initialize instance on\n     * @param {Object} [options] Options object\n     */\n    _initStatic: function(el, options) {\n      var cb = this.requestRenderAllBound;\n      this._objects = [];\n      this._createLowerCanvas(el);\n      this._initOptions(options);\n      this._setImageSmoothing();\n      // only initialize retina scaling once\n      if (!this.interactive) {\n        this._initRetinaScaling();\n      }\n\n      if (options.overlayImage) {\n        this.setOverlayImage(options.overlayImage, cb);\n      }\n      if (options.backgroundImage) {\n        this.setBackgroundImage(options.backgroundImage, cb);\n      }\n      if (options.backgroundColor) {\n        this.setBackgroundColor(options.backgroundColor, cb);\n      }\n      if (options.overlayColor) {\n        this.setOverlayColor(options.overlayColor, cb);\n      }\n      this.calcOffset();\n    },\n\n    /**\n     * @private\n     */\n    _isRetinaScaling: function() {\n      return (fabric.devicePixelRatio !== 1 && this.enableRetinaScaling);\n    },\n\n    /**\n     * @private\n     * @return {Number} retinaScaling if applied, otherwise 1;\n     */\n    getRetinaScaling: function() {\n      return this._isRetinaScaling() ? fabric.devicePixelRatio : 1;\n    },\n\n    /**\n     * @private\n     */\n    _initRetinaScaling: function() {\n      if (!this._isRetinaScaling()) {\n        return;\n      }\n      var scaleRatio = fabric.devicePixelRatio;\n      this.__initRetinaScaling(scaleRatio, this.lowerCanvasEl, this.contextContainer);\n      if (this.upperCanvasEl) {\n        this.__initRetinaScaling(scaleRatio, this.upperCanvasEl, this.contextTop);\n      }\n    },\n\n    __initRetinaScaling: function(scaleRatio, canvas, context) {\n      canvas.setAttribute('width', this.width * scaleRatio);\n      canvas.setAttribute('height', this.height * scaleRatio);\n      context.scale(scaleRatio, scaleRatio);\n    },\n\n\n    /**\n     * Calculates canvas element offset relative to the document\n     * This method is also attached as \"resize\" event handler of window\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    calcOffset: function () {\n      this._offset = getElementOffset(this.lowerCanvasEl);\n      return this;\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#overlayImage|overlay image} for this canvas\n     * @param {(fabric.Image|String)} image fabric.Image instance or URL of an image to set overlay to\n     * @param {Function} callback callback to invoke when image is loaded and set as an overlay\n     * @param {Object} [options] Optional options to set for the {@link fabric.Image|overlay image}.\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/fabricjs/MnzHT/|jsFiddle demo}\n     * @example <caption>Normal overlayImage with left/top = 0</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   // Needed to position overlayImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>overlayImage with different properties</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>Stretched overlayImage #1 - width/height correspond to canvas width/height</caption>\n     * fabric.Image.fromURL('http://fabricjs.com/assets/jail_cell_bars.png', function(img) {\n     *    img.set({width: canvas.width, height: canvas.height, originX: 'left', originY: 'top'});\n     *    canvas.setOverlayImage(img, canvas.renderAll.bind(canvas));\n     * });\n     * @example <caption>Stretched overlayImage #2 - width/height correspond to canvas width/height</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   width: canvas.width,\n     *   height: canvas.height,\n     *   // Needed to position overlayImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>overlayImage loaded from cross-origin</caption>\n     * canvas.setOverlayImage('http://fabricjs.com/assets/jail_cell_bars.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top',\n     *   crossOrigin: 'anonymous'\n     * });\n     */\n    setOverlayImage: function (image, callback, options) {\n      return this.__setBgOverlayImage('overlayImage', image, callback, options);\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#backgroundImage|background image} for this canvas\n     * @param {(fabric.Image|String)} image fabric.Image instance or URL of an image to set background to\n     * @param {Function} callback Callback to invoke when image is loaded and set as background\n     * @param {Object} [options] Optional options to set for the {@link fabric.Image|background image}.\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/djnr8o7a/28/|jsFiddle demo}\n     * @example <caption>Normal backgroundImage with left/top = 0</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   // Needed to position backgroundImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>backgroundImage with different properties</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>Stretched backgroundImage #1 - width/height correspond to canvas width/height</caption>\n     * fabric.Image.fromURL('http://fabricjs.com/assets/honey_im_subtle.png', function(img) {\n     *    img.set({width: canvas.width, height: canvas.height, originX: 'left', originY: 'top'});\n     *    canvas.setBackgroundImage(img, canvas.renderAll.bind(canvas));\n     * });\n     * @example <caption>Stretched backgroundImage #2 - width/height correspond to canvas width/height</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   width: canvas.width,\n     *   height: canvas.height,\n     *   // Needed to position backgroundImage at 0/0\n     *   originX: 'left',\n     *   originY: 'top'\n     * });\n     * @example <caption>backgroundImage loaded from cross-origin</caption>\n     * canvas.setBackgroundImage('http://fabricjs.com/assets/honey_im_subtle.png', canvas.renderAll.bind(canvas), {\n     *   opacity: 0.5,\n     *   angle: 45,\n     *   left: 400,\n     *   top: 400,\n     *   originX: 'left',\n     *   originY: 'top',\n     *   crossOrigin: 'anonymous'\n     * });\n     */\n    // TODO: fix stretched examples\n    setBackgroundImage: function (image, callback, options) {\n      return this.__setBgOverlayImage('backgroundImage', image, callback, options);\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#overlayColor|foreground color} for this canvas\n     * @param {(String|fabric.Pattern)} overlayColor Color or pattern to set foreground color to\n     * @param {Function} callback Callback to invoke when foreground color is set\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/fabricjs/pB55h/|jsFiddle demo}\n     * @example <caption>Normal overlayColor - color value</caption>\n     * canvas.setOverlayColor('rgba(255, 73, 64, 0.6)', canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as overlayColor</caption>\n     * canvas.setOverlayColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png'\n     * }, canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as overlayColor with repeat and offset</caption>\n     * canvas.setOverlayColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png',\n     *   repeat: 'repeat',\n     *   offsetX: 200,\n     *   offsetY: 100\n     * }, canvas.renderAll.bind(canvas));\n     */\n    setOverlayColor: function(overlayColor, callback) {\n      return this.__setBgOverlayColor('overlayColor', overlayColor, callback);\n    },\n\n    /**\n     * Sets {@link fabric.StaticCanvas#backgroundColor|background color} for this canvas\n     * @param {(String|fabric.Pattern)} backgroundColor Color or pattern to set background color to\n     * @param {Function} callback Callback to invoke when background color is set\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     * @see {@link http://jsfiddle.net/fabricjs/hXzvk/|jsFiddle demo}\n     * @example <caption>Normal backgroundColor - color value</caption>\n     * canvas.setBackgroundColor('rgba(255, 73, 64, 0.6)', canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as backgroundColor</caption>\n     * canvas.setBackgroundColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png'\n     * }, canvas.renderAll.bind(canvas));\n     * @example <caption>fabric.Pattern used as backgroundColor with repeat and offset</caption>\n     * canvas.setBackgroundColor({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png',\n     *   repeat: 'repeat',\n     *   offsetX: 200,\n     *   offsetY: 100\n     * }, canvas.renderAll.bind(canvas));\n     */\n    setBackgroundColor: function(backgroundColor, callback) {\n      return this.__setBgOverlayColor('backgroundColor', backgroundColor, callback);\n    },\n\n    /**\n     * @private\n     * @see {@link http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-context-2d-imagesmoothingenabled|WhatWG Canvas Standard}\n     */\n    _setImageSmoothing: function() {\n      var ctx = this.getContext();\n\n      ctx.imageSmoothingEnabled = ctx.imageSmoothingEnabled || ctx.webkitImageSmoothingEnabled\n        || ctx.mozImageSmoothingEnabled || ctx.msImageSmoothingEnabled || ctx.oImageSmoothingEnabled;\n      ctx.imageSmoothingEnabled = this.imageSmoothingEnabled;\n    },\n\n    /**\n     * @private\n     * @param {String} property Property to set ({@link fabric.StaticCanvas#backgroundImage|backgroundImage}\n     * or {@link fabric.StaticCanvas#overlayImage|overlayImage})\n     * @param {(fabric.Image|String|null)} image fabric.Image instance, URL of an image or null to set background or overlay to\n     * @param {Function} callback Callback to invoke when image is loaded and set as background or overlay\n     * @param {Object} [options] Optional options to set for the {@link fabric.Image|image}.\n     */\n    __setBgOverlayImage: function(property, image, callback, options) {\n      if (typeof image === 'string') {\n        fabric.util.loadImage(image, function(img) {\n          if (img) {\n            var instance = new fabric.Image(img, options);\n            this[property] = instance;\n            instance.canvas = this;\n          }\n          callback && callback(img);\n        }, this, options && options.crossOrigin);\n      }\n      else {\n        options && image.setOptions(options);\n        this[property] = image;\n        image && (image.canvas = this);\n        callback && callback(image);\n      }\n\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {String} property Property to set ({@link fabric.StaticCanvas#backgroundColor|backgroundColor}\n     * or {@link fabric.StaticCanvas#overlayColor|overlayColor})\n     * @param {(Object|String|null)} color Object with pattern information, color value or null\n     * @param {Function} [callback] Callback is invoked when color is set\n     */\n    __setBgOverlayColor: function(property, color, callback) {\n      this[property] = color;\n      this._initGradient(color, property);\n      this._initPattern(color, property, callback);\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _createCanvasElement: function() {\n      var element = createCanvasElement();\n      if (!element) {\n        throw CANVAS_INIT_ERROR;\n      }\n      if (!element.style) {\n        element.style = { };\n      }\n      if (typeof element.getContext === 'undefined') {\n        throw CANVAS_INIT_ERROR;\n      }\n      return element;\n    },\n\n    /**\n     * @private\n     * @param {Object} [options] Options object\n     */\n    _initOptions: function (options) {\n      var lowerCanvasEl = this.lowerCanvasEl;\n      this._setOptions(options);\n\n      this.width = this.width || parseInt(lowerCanvasEl.width, 10) || 0;\n      this.height = this.height || parseInt(lowerCanvasEl.height, 10) || 0;\n\n      if (!this.lowerCanvasEl.style) {\n        return;\n      }\n\n      lowerCanvasEl.width = this.width;\n      lowerCanvasEl.height = this.height;\n\n      lowerCanvasEl.style.width = this.width + 'px';\n      lowerCanvasEl.style.height = this.height + 'px';\n\n      this.viewportTransform = this.viewportTransform.slice();\n    },\n\n    /**\n     * Creates a bottom canvas\n     * @private\n     * @param {HTMLElement} [canvasEl]\n     */\n    _createLowerCanvas: function (canvasEl) {\n      // canvasEl === 'HTMLCanvasElement' does not work on jsdom/node\n      if (canvasEl && canvasEl.getContext) {\n        this.lowerCanvasEl = canvasEl;\n      }\n      else {\n        this.lowerCanvasEl = fabric.util.getById(canvasEl) || this._createCanvasElement();\n      }\n\n      fabric.util.addClass(this.lowerCanvasEl, 'lower-canvas');\n\n      if (this.interactive) {\n        this._applyCanvasStyle(this.lowerCanvasEl);\n      }\n\n      this.contextContainer = this.lowerCanvasEl.getContext('2d');\n    },\n\n    /**\n     * Returns canvas width (in px)\n     * @return {Number}\n     */\n    getWidth: function () {\n      return this.width;\n    },\n\n    /**\n     * Returns canvas height (in px)\n     * @return {Number}\n     */\n    getHeight: function () {\n      return this.height;\n    },\n\n    /**\n     * Sets width of this canvas instance\n     * @param {Number|String} value                         Value to set width to\n     * @param {Object}        [options]                     Options object\n     * @param {Boolean}       [options.backstoreOnly=false] Set the given dimensions only as canvas backstore dimensions\n     * @param {Boolean}       [options.cssOnly=false]       Set the given dimensions only as css dimensions\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setWidth: function (value, options) {\n      return this.setDimensions({ width: value }, options);\n    },\n\n    /**\n     * Sets height of this canvas instance\n     * @param {Number|String} value                         Value to set height to\n     * @param {Object}        [options]                     Options object\n     * @param {Boolean}       [options.backstoreOnly=false] Set the given dimensions only as canvas backstore dimensions\n     * @param {Boolean}       [options.cssOnly=false]       Set the given dimensions only as css dimensions\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setHeight: function (value, options) {\n      return this.setDimensions({ height: value }, options);\n    },\n\n    /**\n     * Sets dimensions (width, height) of this canvas instance. when options.cssOnly flag active you should also supply the unit of measure (px/%/em)\n     * @param {Object}        dimensions                    Object with width/height properties\n     * @param {Number|String} [dimensions.width]            Width of canvas element\n     * @param {Number|String} [dimensions.height]           Height of canvas element\n     * @param {Object}        [options]                     Options object\n     * @param {Boolean}       [options.backstoreOnly=false] Set the given dimensions only as canvas backstore dimensions\n     * @param {Boolean}       [options.cssOnly=false]       Set the given dimensions only as css dimensions\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    setDimensions: function (dimensions, options) {\n      var cssValue;\n\n      options = options || {};\n\n      for (var prop in dimensions) {\n        cssValue = dimensions[prop];\n\n        if (!options.cssOnly) {\n          this._setBackstoreDimension(prop, dimensions[prop]);\n          cssValue += 'px';\n          this.hasLostContext = true;\n        }\n\n        if (!options.backstoreOnly) {\n          this._setCssDimension(prop, cssValue);\n        }\n      }\n      if (this._isCurrentlyDrawing) {\n        this.freeDrawingBrush && this.freeDrawingBrush._setBrushStyles();\n      }\n      this._initRetinaScaling();\n      this._setImageSmoothing();\n      this.calcOffset();\n\n      if (!options.cssOnly) {\n        this.requestRenderAll();\n      }\n\n      return this;\n    },\n\n    /**\n     * Helper for setting width/height\n     * @private\n     * @param {String} prop property (width|height)\n     * @param {Number} value value to set property to\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    _setBackstoreDimension: function (prop, value) {\n      this.lowerCanvasEl[prop] = value;\n\n      if (this.upperCanvasEl) {\n        this.upperCanvasEl[prop] = value;\n      }\n\n      if (this.cacheCanvasEl) {\n        this.cacheCanvasEl[prop] = value;\n      }\n\n      this[prop] = value;\n\n      return this;\n    },\n\n    /**\n     * Helper for setting css width/height\n     * @private\n     * @param {String} prop property (width|height)\n     * @param {String} value value to set property to\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    _setCssDimension: function (prop, value) {\n      this.lowerCanvasEl.style[prop] = value;\n\n      if (this.upperCanvasEl) {\n        this.upperCanvasEl.style[prop] = value;\n      }\n\n      if (this.wrapperEl) {\n        this.wrapperEl.style[prop] = value;\n      }\n\n      return this;\n    },\n\n    /**\n     * Returns canvas zoom level\n     * @return {Number}\n     */\n    getZoom: function () {\n      return this.viewportTransform[0];\n    },\n\n    /**\n     * Sets viewport transform of this canvas instance\n     * @param {Array} vpt the transform in the form of context.transform\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setViewportTransform: function (vpt) {\n      var activeObject = this._activeObject, object, ignoreVpt = false, skipAbsolute = true, i, len;\n      this.viewportTransform = vpt;\n      for (i = 0, len = this._objects.length; i < len; i++) {\n        object = this._objects[i];\n        object.group || object.setCoords(ignoreVpt, skipAbsolute);\n      }\n      if (activeObject && activeObject.type === 'activeSelection') {\n        activeObject.setCoords(ignoreVpt, skipAbsolute);\n      }\n      this.calcViewportBoundaries();\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Sets zoom level of this canvas instance, zoom centered around point\n     * @param {fabric.Point} point to zoom with respect to\n     * @param {Number} value to set zoom to, less than 1 zooms out\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    zoomToPoint: function (point, value) {\n      // TODO: just change the scale, preserve other transformations\n      var before = point, vpt = this.viewportTransform.slice(0);\n      point = transformPoint(point, invertTransform(this.viewportTransform));\n      vpt[0] = value;\n      vpt[3] = value;\n      var after = transformPoint(point, vpt);\n      vpt[4] += before.x - after.x;\n      vpt[5] += before.y - after.y;\n      return this.setViewportTransform(vpt);\n    },\n\n    /**\n     * Sets zoom level of this canvas instance\n     * @param {Number} value to set zoom to, less than 1 zooms out\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    setZoom: function (value) {\n      this.zoomToPoint(new fabric.Point(0, 0), value);\n      return this;\n    },\n\n    /**\n     * Pan viewport so as to place point at top left corner of canvas\n     * @param {fabric.Point} point to move to\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    absolutePan: function (point) {\n      var vpt = this.viewportTransform.slice(0);\n      vpt[4] = -point.x;\n      vpt[5] = -point.y;\n      return this.setViewportTransform(vpt);\n    },\n\n    /**\n     * Pans viewpoint relatively\n     * @param {fabric.Point} point (position vector) to move by\n     * @return {fabric.Canvas} instance\n     * @chainable true\n     */\n    relativePan: function (point) {\n      return this.absolutePan(new fabric.Point(\n        -point.x - this.viewportTransform[4],\n        -point.y - this.viewportTransform[5]\n      ));\n    },\n\n    /**\n     * Returns &lt;canvas> element corresponding to this instance\n     * @return {HTMLCanvasElement}\n     */\n    getElement: function () {\n      return this.lowerCanvasEl;\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} obj Object that was added\n     */\n    _onObjectAdded: function(obj) {\n      this.stateful && obj.setupState();\n      obj._set('canvas', this);\n      obj.setCoords();\n      this.fire('object:added', { target: obj });\n      obj.fire('added');\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} obj Object that was removed\n     */\n    _onObjectRemoved: function(obj) {\n      this.fire('object:removed', { target: obj });\n      obj.fire('removed');\n      delete obj.canvas;\n    },\n\n    /**\n     * Clears specified context of canvas element\n     * @param {CanvasRenderingContext2D} ctx Context to clear\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    clearContext: function(ctx) {\n      ctx.clearRect(0, 0, this.width, this.height);\n      return this;\n    },\n\n    /**\n     * Returns context of canvas where objects are drawn\n     * @return {CanvasRenderingContext2D}\n     */\n    getContext: function () {\n      return this.contextContainer;\n    },\n\n    /**\n     * Clears all contexts (background, main, top) of an instance\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    clear: function () {\n      this._objects.length = 0;\n      this.backgroundImage = null;\n      this.overlayImage = null;\n      this.backgroundColor = '';\n      this.overlayColor = '';\n      if (this._hasITextHandlers) {\n        this.off('mouse:up', this._mouseUpITextHandler);\n        this._iTextInstances = null;\n        this._hasITextHandlers = false;\n      }\n      this.clearContext(this.contextContainer);\n      this.fire('canvas:cleared');\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Renders the canvas\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderAll: function () {\n      var canvasToDrawOn = this.contextContainer;\n      this.renderCanvas(canvasToDrawOn, this._objects);\n      return this;\n    },\n\n    /**\n     * Function created to be instance bound at initialization\n     * used in requestAnimationFrame rendering\n     * Let the fabricJS call it. If you call it manually you could have more\n     * animationFrame stacking on to of each other\n     * for an imperative rendering, use canvas.renderAll\n     * @private\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderAndReset: function() {\n      this.isRendering = 0;\n      this.renderAll();\n    },\n\n    /**\n     * Append a renderAll request to next animation frame.\n     * unless one is already in progress, in that case nothing is done\n     * a boolean flag will avoid appending more.\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    requestRenderAll: function () {\n      if (!this.isRendering) {\n        this.isRendering = fabric.util.requestAnimFrame(this.renderAndResetBound);\n      }\n      return this;\n    },\n\n    /**\n     * Calculate the position of the 4 corner of canvas with current viewportTransform.\n     * helps to determinate when an object is in the current rendering viewport using\n     * object absolute coordinates ( aCoords )\n     * @return {Object} points.tl\n     * @chainable\n     */\n    calcViewportBoundaries: function() {\n      var points = { }, width = this.width, height = this.height,\n          iVpt = invertTransform(this.viewportTransform);\n      points.tl = transformPoint({ x: 0, y: 0 }, iVpt);\n      points.br = transformPoint({ x: width, y: height }, iVpt);\n      points.tr = new fabric.Point(points.br.x, points.tl.y);\n      points.bl = new fabric.Point(points.tl.x, points.br.y);\n      this.vptCoords = points;\n      return points;\n    },\n\n    cancelRequestedRender: function() {\n      if (this.isRendering) {\n        fabric.util.cancelAnimFrame(this.isRendering);\n        this.isRendering = 0;\n      }\n    },\n\n    /**\n     * Renders background, objects, overlay and controls.\n     * @param {CanvasRenderingContext2D} ctx\n     * @param {Array} objects to render\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderCanvas: function(ctx, objects) {\n      var v = this.viewportTransform, path = this.clipPath;\n      this.cancelRequestedRender();\n      this.calcViewportBoundaries();\n      this.clearContext(ctx);\n      this.fire('before:render', { ctx: ctx, });\n      if (this.clipTo) {\n        fabric.util.clipContext(this, ctx);\n      }\n      this._renderBackground(ctx);\n\n      ctx.save();\n      //apply viewport transform once for all rendering process\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      this._renderObjects(ctx, objects);\n      ctx.restore();\n      if (!this.controlsAboveOverlay && this.interactive) {\n        this.drawControls(ctx);\n      }\n      if (this.clipTo) {\n        ctx.restore();\n      }\n      if (path) {\n        path.canvas = this;\n        // needed to setup a couple of variables\n        path.shouldCache();\n        path._transformDone = true;\n        path.renderCache({ forClipping: true });\n        this.drawClipPathOnCanvas(ctx);\n      }\n      this._renderOverlay(ctx);\n      if (this.controlsAboveOverlay && this.interactive) {\n        this.drawControls(ctx);\n      }\n      this.fire('after:render', { ctx: ctx, });\n    },\n\n    /**\n     * Paint the cached clipPath on the lowerCanvasEl\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawClipPathOnCanvas: function(ctx) {\n      var v = this.viewportTransform, path = this.clipPath;\n      ctx.save();\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      // DEBUG: uncomment this line, comment the following\n      // ctx.globalAlpha = 0.4;\n      ctx.globalCompositeOperation = 'destination-in';\n      path.transform(ctx);\n      ctx.scale(1 / path.zoomX, 1 / path.zoomY);\n      ctx.drawImage(path._cacheCanvas, -path.cacheTranslationX, -path.cacheTranslationY);\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Array} objects to render\n     */\n    _renderObjects: function(ctx, objects) {\n      var i, len;\n      for (i = 0, len = objects.length; i < len; ++i) {\n        objects[i] && objects[i].render(ctx);\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {string} property 'background' or 'overlay'\n     */\n    _renderBackgroundOrOverlay: function(ctx, property) {\n      var fill = this[property + 'Color'], object = this[property + 'Image'],\n          v = this.viewportTransform, needsVpt = this[property + 'Vpt'];\n      if (!fill && !object) {\n        return;\n      }\n      if (fill) {\n        ctx.save();\n        ctx.beginPath();\n        ctx.moveTo(0, 0);\n        ctx.lineTo(this.width, 0);\n        ctx.lineTo(this.width, this.height);\n        ctx.lineTo(0, this.height);\n        ctx.closePath();\n        ctx.fillStyle = fill.toLive\n          ? fill.toLive(ctx, this)\n          : fill;\n        if (needsVpt) {\n          ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n        }\n        ctx.transform(1, 0, 0, 1, fill.offsetX || 0, fill.offsetY || 0);\n        var m = fill.gradientTransform || fill.patternTransform;\n        m && ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n        ctx.fill();\n        ctx.restore();\n      }\n      if (object) {\n        ctx.save();\n        if (needsVpt) {\n          ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n        }\n        object.render(ctx);\n        ctx.restore();\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderBackground: function(ctx) {\n      this._renderBackgroundOrOverlay(ctx, 'background');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderOverlay: function(ctx) {\n      this._renderBackgroundOrOverlay(ctx, 'overlay');\n    },\n\n    /**\n     * Returns coordinates of a center of canvas.\n     * Returned value is an object with top and left properties\n     * @return {Object} object with \"top\" and \"left\" number values\n     */\n    getCenter: function () {\n      return {\n        top: this.height / 2,\n        left: this.width / 2\n      };\n    },\n\n    /**\n     * Centers object horizontally in the canvas\n     * @param {fabric.Object} object Object to center horizontally\n     * @return {fabric.Canvas} thisArg\n     */\n    centerObjectH: function (object) {\n      return this._centerObject(object, new fabric.Point(this.getCenter().left, object.getCenterPoint().y));\n    },\n\n    /**\n     * Centers object vertically in the canvas\n     * @param {fabric.Object} object Object to center vertically\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    centerObjectV: function (object) {\n      return this._centerObject(object, new fabric.Point(object.getCenterPoint().x, this.getCenter().top));\n    },\n\n    /**\n     * Centers object vertically and horizontally in the canvas\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    centerObject: function(object) {\n      var center = this.getCenter();\n\n      return this._centerObject(object, new fabric.Point(center.left, center.top));\n    },\n\n    /**\n     * Centers object vertically and horizontally in the viewport\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    viewportCenterObject: function(object) {\n      var vpCenter = this.getVpCenter();\n\n      return this._centerObject(object, vpCenter);\n    },\n\n    /**\n     * Centers object horizontally in the viewport, object.top is unchanged\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    viewportCenterObjectH: function(object) {\n      var vpCenter = this.getVpCenter();\n      this._centerObject(object, new fabric.Point(vpCenter.x, object.getCenterPoint().y));\n      return this;\n    },\n\n    /**\n     * Centers object Vertically in the viewport, object.top is unchanged\n     * @param {fabric.Object} object Object to center vertically and horizontally\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    viewportCenterObjectV: function(object) {\n      var vpCenter = this.getVpCenter();\n\n      return this._centerObject(object, new fabric.Point(object.getCenterPoint().x, vpCenter.y));\n    },\n\n    /**\n     * Calculate the point in canvas that correspond to the center of actual viewport.\n     * @return {fabric.Point} vpCenter, viewport center\n     * @chainable\n     */\n    getVpCenter: function() {\n      var center = this.getCenter(),\n          iVpt = invertTransform(this.viewportTransform);\n      return transformPoint({ x: center.left, y: center.top }, iVpt);\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} object Object to center\n     * @param {fabric.Point} center Center point\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    _centerObject: function(object, center) {\n      object.setPositionByOrigin(center, 'center', 'center');\n      object.setCoords();\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Returs dataless JSON representation of canvas\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {String} json string\n     */\n    toDatalessJSON: function (propertiesToInclude) {\n      return this.toDatalessObject(propertiesToInclude);\n    },\n\n    /**\n     * Returns object representation of canvas\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function (propertiesToInclude) {\n      return this._toObjectMethod('toObject', propertiesToInclude);\n    },\n\n    /**\n     * Returns dataless object representation of canvas\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toDatalessObject: function (propertiesToInclude) {\n      return this._toObjectMethod('toDatalessObject', propertiesToInclude);\n    },\n\n    /**\n     * @private\n     */\n    _toObjectMethod: function (methodName, propertiesToInclude) {\n\n      var clipPath = this.clipPath, data = {\n        version: fabric.version,\n        objects: this._toObjects(methodName, propertiesToInclude),\n      };\n      if (clipPath) {\n        data.clipPath = this._toObject(this.clipPath, methodName, propertiesToInclude);\n      }\n      extend(data, this.__serializeBgOverlay(methodName, propertiesToInclude));\n\n      fabric.util.populateWithProperties(this, data, propertiesToInclude);\n\n      return data;\n    },\n\n    /**\n     * @private\n     */\n    _toObjects: function(methodName, propertiesToInclude) {\n      return this._objects.filter(function(object) {\n        return !object.excludeFromExport;\n      }).map(function(instance) {\n        return this._toObject(instance, methodName, propertiesToInclude);\n      }, this);\n    },\n\n    /**\n     * @private\n     */\n    _toObject: function(instance, methodName, propertiesToInclude) {\n      var originalValue;\n\n      if (!this.includeDefaultValues) {\n        originalValue = instance.includeDefaultValues;\n        instance.includeDefaultValues = false;\n      }\n\n      var object = instance[methodName](propertiesToInclude);\n      if (!this.includeDefaultValues) {\n        instance.includeDefaultValues = originalValue;\n      }\n      return object;\n    },\n\n    /**\n     * @private\n     */\n    __serializeBgOverlay: function(methodName, propertiesToInclude) {\n      var data = { }, bgImage = this.backgroundImage, overlay = this.overlayImage;\n\n      if (this.backgroundColor) {\n        data.background = this.backgroundColor.toObject\n          ? this.backgroundColor.toObject(propertiesToInclude)\n          : this.backgroundColor;\n      }\n\n      if (this.overlayColor) {\n        data.overlay = this.overlayColor.toObject\n          ? this.overlayColor.toObject(propertiesToInclude)\n          : this.overlayColor;\n      }\n      if (bgImage && !bgImage.excludeFromExport) {\n        data.backgroundImage = this._toObject(bgImage, methodName, propertiesToInclude);\n      }\n      if (overlay && !overlay.excludeFromExport) {\n        data.overlayImage = this._toObject(overlay, methodName, propertiesToInclude);\n      }\n\n      return data;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * When true, getSvgTransform() will apply the StaticCanvas.viewportTransform to the SVG transformation. When true,\n     * a zoomed canvas will then produce zoomed SVG output.\n     * @type Boolean\n     * @default\n     */\n    svgViewportTransformation: true,\n\n    /**\n     * Returns SVG representation of canvas\n     * @function\n     * @param {Object} [options] Options object for SVG output\n     * @param {Boolean} [options.suppressPreamble=false] If true xml tag is not included\n     * @param {Object} [options.viewBox] SVG viewbox object\n     * @param {Number} [options.viewBox.x] x-cooridnate of viewbox\n     * @param {Number} [options.viewBox.y] y-coordinate of viewbox\n     * @param {Number} [options.viewBox.width] Width of viewbox\n     * @param {Number} [options.viewBox.height] Height of viewbox\n     * @param {String} [options.encoding=UTF-8] Encoding of SVG output\n     * @param {String} [options.width] desired width of svg with or without units\n     * @param {String} [options.height] desired height of svg with or without units\n     * @param {Function} [reviver] Method for further parsing of svg elements, called after each fabric object converted into svg representation.\n     * @return {String} SVG string\n     * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#serialization}\n     * @see {@link http://jsfiddle.net/fabricjs/jQ3ZZ/|jsFiddle demo}\n     * @example <caption>Normal SVG output</caption>\n     * var svg = canvas.toSVG();\n     * @example <caption>SVG output without preamble (without &lt;?xml ../>)</caption>\n     * var svg = canvas.toSVG({suppressPreamble: true});\n     * @example <caption>SVG output with viewBox attribute</caption>\n     * var svg = canvas.toSVG({\n     *   viewBox: {\n     *     x: 100,\n     *     y: 100,\n     *     width: 200,\n     *     height: 300\n     *   }\n     * });\n     * @example <caption>SVG output with different encoding (default: UTF-8)</caption>\n     * var svg = canvas.toSVG({encoding: 'ISO-8859-1'});\n     * @example <caption>Modify SVG output with reviver function</caption>\n     * var svg = canvas.toSVG(null, function(svg) {\n     *   return svg.replace('stroke-dasharray: ; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 10; ', '');\n     * });\n     */\n    toSVG: function(options, reviver) {\n      options || (options = { });\n      options.reviver = reviver;\n      var markup = [];\n\n      this._setSVGPreamble(markup, options);\n      this._setSVGHeader(markup, options);\n      if (this.clipPath) {\n        markup.push('<g clip-path=\"url(#' + this.clipPath.clipPathId + ')\" >\\n');\n      }\n      this._setSVGBgOverlayColor(markup, 'background');\n      this._setSVGBgOverlayImage(markup, 'backgroundImage', reviver);\n      this._setSVGObjects(markup, reviver);\n      if (this.clipPath) {\n        markup.push('</g>\\n');\n      }\n      this._setSVGBgOverlayColor(markup, 'overlay');\n      this._setSVGBgOverlayImage(markup, 'overlayImage', reviver);\n\n      markup.push('</svg>');\n\n      return markup.join('');\n    },\n\n    /**\n     * @private\n     */\n    _setSVGPreamble: function(markup, options) {\n      if (options.suppressPreamble) {\n        return;\n      }\n      markup.push(\n        '<?xml version=\"1.0\" encoding=\"', (options.encoding || 'UTF-8'), '\" standalone=\"no\" ?>\\n',\n        '<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" ',\n        '\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\\n'\n      );\n    },\n\n    /**\n     * @private\n     */\n    _setSVGHeader: function(markup, options) {\n      var width = options.width || this.width,\n          height = options.height || this.height,\n          vpt, viewBox = 'viewBox=\"0 0 ' + this.width + ' ' + this.height + '\" ',\n          NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n\n      if (options.viewBox) {\n        viewBox = 'viewBox=\"' +\n                options.viewBox.x + ' ' +\n                options.viewBox.y + ' ' +\n                options.viewBox.width + ' ' +\n                options.viewBox.height + '\" ';\n      }\n      else {\n        if (this.svgViewportTransformation) {\n          vpt = this.viewportTransform;\n          viewBox = 'viewBox=\"' +\n                  toFixed(-vpt[4] / vpt[0], NUM_FRACTION_DIGITS) + ' ' +\n                  toFixed(-vpt[5] / vpt[3], NUM_FRACTION_DIGITS) + ' ' +\n                  toFixed(this.width / vpt[0], NUM_FRACTION_DIGITS) + ' ' +\n                  toFixed(this.height / vpt[3], NUM_FRACTION_DIGITS) + '\" ';\n        }\n      }\n\n      markup.push(\n        '<svg ',\n        'xmlns=\"http://www.w3.org/2000/svg\" ',\n        'xmlns:xlink=\"http://www.w3.org/1999/xlink\" ',\n        'version=\"1.1\" ',\n        'width=\"', width, '\" ',\n        'height=\"', height, '\" ',\n        viewBox,\n        'xml:space=\"preserve\">\\n',\n        '<desc>Created with Fabric.js ', fabric.version, '</desc>\\n',\n        '<defs>\\n',\n        this.createSVGFontFacesMarkup(),\n        this.createSVGRefElementsMarkup(),\n        this.createSVGClipPathMarkup(options),\n        '</defs>\\n'\n      );\n    },\n\n    createSVGClipPathMarkup: function(options) {\n      var clipPath = this.clipPath;\n      if (clipPath) {\n        clipPath.clipPathId = 'CLIPPATH_' + fabric.Object.__uid++;\n        return  '<clipPath id=\"' + clipPath.clipPathId + '\" >\\n' +\n          this.clipPath.toClipPathSVG(options.reviver) +\n          '</clipPath>\\n';\n      }\n      return '';\n    },\n\n    /**\n     * Creates markup containing SVG referenced elements like patterns, gradients etc.\n     * @return {String}\n     */\n    createSVGRefElementsMarkup: function() {\n      var _this = this,\n          markup = ['background', 'overlay'].map(function(prop) {\n            var fill = _this[prop + 'Color'];\n            if (fill && fill.toLive) {\n              var shouldTransform = _this[prop + 'Vpt'], vpt = _this.viewportTransform,\n                  object = {\n                    width: _this.width / (shouldTransform ? vpt[0] : 1),\n                    height: _this.height / (shouldTransform ? vpt[3] : 1)\n                  };\n              return fill.toSVG(\n                object,\n                { additionalTransform: shouldTransform ? fabric.util.matrixToSVG(vpt) : '' }\n              );\n            }\n          });\n      return markup.join('');\n    },\n\n    /**\n     * Creates markup containing SVG font faces,\n     * font URLs for font faces must be collected by developers\n     * and are not extracted from the DOM by fabricjs\n     * @param {Array} objects Array of fabric objects\n     * @return {String}\n     */\n    createSVGFontFacesMarkup: function() {\n      var markup = '', fontList = { }, obj, fontFamily,\n          style, row, rowIndex, _char, charIndex, i, len,\n          fontPaths = fabric.fontPaths, objects = [];\n\n      this._objects.forEach(function add(object) {\n        objects.push(object);\n        if (object._objects) {\n          object._objects.forEach(add);\n        }\n      });\n\n      for (i = 0, len = objects.length; i < len; i++) {\n        obj = objects[i];\n        fontFamily = obj.fontFamily;\n        if (obj.type.indexOf('text') === -1 || fontList[fontFamily] || !fontPaths[fontFamily]) {\n          continue;\n        }\n        fontList[fontFamily] = true;\n        if (!obj.styles) {\n          continue;\n        }\n        style = obj.styles;\n        for (rowIndex in style) {\n          row = style[rowIndex];\n          for (charIndex in row) {\n            _char = row[charIndex];\n            fontFamily = _char.fontFamily;\n            if (!fontList[fontFamily] && fontPaths[fontFamily]) {\n              fontList[fontFamily] = true;\n            }\n          }\n        }\n      }\n\n      for (var j in fontList) {\n        markup += [\n          '\\t\\t@font-face {\\n',\n          '\\t\\t\\tfont-family: \\'', j, '\\';\\n',\n          '\\t\\t\\tsrc: url(\\'', fontPaths[j], '\\');\\n',\n          '\\t\\t}\\n'\n        ].join('');\n      }\n\n      if (markup) {\n        markup = [\n          '\\t<style type=\"text/css\">',\n          '<![CDATA[\\n',\n          markup,\n          ']]>',\n          '</style>\\n'\n        ].join('');\n      }\n\n      return markup;\n    },\n\n    /**\n     * @private\n     */\n    _setSVGObjects: function(markup, reviver) {\n      var instance, i, len, objects = this._objects;\n      for (i = 0, len = objects.length; i < len; i++) {\n        instance = objects[i];\n        if (instance.excludeFromExport) {\n          continue;\n        }\n        this._setSVGObject(markup, instance, reviver);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setSVGObject: function(markup, instance, reviver) {\n      markup.push(instance.toSVG(reviver));\n    },\n\n    /**\n     * @private\n     */\n    _setSVGBgOverlayImage: function(markup, property, reviver) {\n      if (this[property] && !this[property].excludeFromExport && this[property].toSVG) {\n        markup.push(this[property].toSVG(reviver));\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setSVGBgOverlayColor: function(markup, property) {\n      var filler = this[property + 'Color'], vpt = this.viewportTransform, finalWidth = this.width,\n          finalHeight = this.height;\n      if (!filler) {\n        return;\n      }\n      if (filler.toLive) {\n        var repeat = filler.repeat, iVpt = fabric.util.invertTransform(vpt), shouldInvert = this[property + 'Vpt'],\n            additionalTransform = shouldInvert ? fabric.util.matrixToSVG(iVpt) : '';\n        markup.push(\n          '<rect transform=\"' + additionalTransform + ' translate(', finalWidth / 2, ',', finalHeight / 2, ')\"',\n          ' x=\"', filler.offsetX - finalWidth / 2,\n          '\" y=\"', filler.offsetY - finalHeight / 2, '\" ',\n          'width=\"',\n          (repeat === 'repeat-y' || repeat === 'no-repeat'\n            ? filler.source.width\n            : finalWidth ),\n          '\" height=\"',\n          (repeat === 'repeat-x' || repeat === 'no-repeat'\n            ? filler.source.height\n            : finalHeight),\n          '\" fill=\"url(#SVGID_' + filler.id + ')\"',\n          '></rect>\\n'\n        );\n      }\n      else {\n        markup.push(\n          '<rect x=\"0\" y=\"0\" width=\"100%\" height=\"100%\" ',\n          'fill=\"', filler, '\"',\n          '></rect>\\n'\n        );\n      }\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Moves an object or the objects of a multiple selection\n     * to the bottom of the stack of drawn objects\n     * @param {fabric.Object} object Object to send to back\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    sendToBack: function (object) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, objs;\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = objs.length; i--;) {\n          obj = objs[i];\n          removeFromArray(this._objects, obj);\n          this._objects.unshift(obj);\n        }\n      }\n      else {\n        removeFromArray(this._objects, object);\n        this._objects.unshift(object);\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Moves an object or the objects of a multiple selection\n     * to the top of the stack of drawn objects\n     * @param {fabric.Object} object Object to send\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    bringToFront: function (object) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, objs;\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = 0; i < objs.length; i++) {\n          obj = objs[i];\n          removeFromArray(this._objects, obj);\n          this._objects.push(obj);\n        }\n      }\n      else {\n        removeFromArray(this._objects, object);\n        this._objects.push(object);\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * Moves an object or a selection down in stack of drawn objects\n     * An optional paramter, intersecting allowes to move the object in behind\n     * the first intersecting object. Where intersection is calculated with\n     * bounding box. If no intersection is found, there will not be change in the\n     * stack.\n     * @param {fabric.Object} object Object to send\n     * @param {Boolean} [intersecting] If `true`, send object behind next lower intersecting object\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    sendBackwards: function (object, intersecting) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, idx, newIdx, objs, objsMoved = 0;\n\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = 0; i < objs.length; i++) {\n          obj = objs[i];\n          idx = this._objects.indexOf(obj);\n          if (idx > 0 + objsMoved) {\n            newIdx = idx - 1;\n            removeFromArray(this._objects, obj);\n            this._objects.splice(newIdx, 0, obj);\n          }\n          objsMoved++;\n        }\n      }\n      else {\n        idx = this._objects.indexOf(object);\n        if (idx !== 0) {\n          // if object is not on the bottom of stack\n          newIdx = this._findNewLowerIndex(object, idx, intersecting);\n          removeFromArray(this._objects, object);\n          this._objects.splice(newIdx, 0, object);\n        }\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _findNewLowerIndex: function(object, idx, intersecting) {\n      var newIdx, i;\n\n      if (intersecting) {\n        newIdx = idx;\n\n        // traverse down the stack looking for the nearest intersecting object\n        for (i = idx - 1; i >= 0; --i) {\n\n          var isIntersecting = object.intersectsWithObject(this._objects[i]) ||\n                               object.isContainedWithinObject(this._objects[i]) ||\n                               this._objects[i].isContainedWithinObject(object);\n\n          if (isIntersecting) {\n            newIdx = i;\n            break;\n          }\n        }\n      }\n      else {\n        newIdx = idx - 1;\n      }\n\n      return newIdx;\n    },\n\n    /**\n     * Moves an object or a selection up in stack of drawn objects\n     * An optional paramter, intersecting allowes to move the object in front\n     * of the first intersecting object. Where intersection is calculated with\n     * bounding box. If no intersection is found, there will not be change in the\n     * stack.\n     * @param {fabric.Object} object Object to send\n     * @param {Boolean} [intersecting] If `true`, send object in front of next upper intersecting object\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    bringForward: function (object, intersecting) {\n      if (!object) {\n        return this;\n      }\n      var activeSelection = this._activeObject,\n          i, obj, idx, newIdx, objs, objsMoved = 0;\n\n      if (object === activeSelection && object.type === 'activeSelection') {\n        objs = activeSelection._objects;\n        for (i = objs.length; i--;) {\n          obj = objs[i];\n          idx = this._objects.indexOf(obj);\n          if (idx < this._objects.length - 1 - objsMoved) {\n            newIdx = idx + 1;\n            removeFromArray(this._objects, obj);\n            this._objects.splice(newIdx, 0, obj);\n          }\n          objsMoved++;\n        }\n      }\n      else {\n        idx = this._objects.indexOf(object);\n        if (idx !== this._objects.length - 1) {\n          // if object is not on top of stack (last item in an array)\n          newIdx = this._findNewUpperIndex(object, idx, intersecting);\n          removeFromArray(this._objects, object);\n          this._objects.splice(newIdx, 0, object);\n        }\n      }\n      this.renderOnAddRemove && this.requestRenderAll();\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _findNewUpperIndex: function(object, idx, intersecting) {\n      var newIdx, i, len;\n\n      if (intersecting) {\n        newIdx = idx;\n\n        // traverse up the stack looking for the nearest intersecting object\n        for (i = idx + 1, len = this._objects.length; i < len; ++i) {\n\n          var isIntersecting = object.intersectsWithObject(this._objects[i]) ||\n                               object.isContainedWithinObject(this._objects[i]) ||\n                               this._objects[i].isContainedWithinObject(object);\n\n          if (isIntersecting) {\n            newIdx = i;\n            break;\n          }\n        }\n      }\n      else {\n        newIdx = idx + 1;\n      }\n\n      return newIdx;\n    },\n\n    /**\n     * Moves an object to specified level in stack of drawn objects\n     * @param {fabric.Object} object Object to send\n     * @param {Number} index Position to move to\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    moveTo: function (object, index) {\n      removeFromArray(this._objects, object);\n      this._objects.splice(index, 0, object);\n      return this.renderOnAddRemove && this.requestRenderAll();\n    },\n\n    /**\n     * Clears a canvas element and dispose objects\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    dispose: function () {\n      // cancel eventually ongoing renders\n      if (this.isRendering) {\n        fabric.util.cancelAnimFrame(this.isRendering);\n        this.isRendering = 0;\n      }\n      this.forEachObject(function(object) {\n        object.dispose && object.dispose();\n      });\n      this._objects = [];\n      if (this.backgroundImage && this.backgroundImage.dispose) {\n        this.backgroundImage.dispose();\n      }\n      this.backgroundImage = null;\n      if (this.overlayImage && this.overlayImage.dispose) {\n        this.overlayImage.dispose();\n      }\n      this.overlayImage = null;\n      this._iTextInstances = null;\n      this.contextContainer = null;\n      fabric.util.cleanUpJsdomNode(this.lowerCanvasEl);\n      this.lowerCanvasEl = undefined;\n      return this;\n    },\n\n    /**\n     * Returns a string representation of an instance\n     * @return {String} string representation of an instance\n     */\n    toString: function () {\n      return '#<fabric.Canvas (' + this.complexity() + '): ' +\n               '{ objects: ' + this._objects.length + ' }>';\n    }\n  });\n\n  extend(fabric.StaticCanvas.prototype, fabric.Observable);\n  extend(fabric.StaticCanvas.prototype, fabric.Collection);\n  extend(fabric.StaticCanvas.prototype, fabric.DataURLExporter);\n\n  extend(fabric.StaticCanvas, /** @lends fabric.StaticCanvas */ {\n\n    /**\n     * @static\n     * @type String\n     * @default\n     */\n    EMPTY_JSON: '{\"objects\": [], \"background\": \"white\"}',\n\n    /**\n     * Provides a way to check support of some of the canvas methods\n     * (either those of HTMLCanvasElement itself, or rendering context)\n     *\n     * @param {String} methodName Method to check support for;\n     *                            Could be one of \"setLineDash\"\n     * @return {Boolean | null} `true` if method is supported (or at least exists),\n     *                          `null` if canvas element or context can not be initialized\n     */\n    supports: function (methodName) {\n      var el = createCanvasElement();\n\n      if (!el || !el.getContext) {\n        return null;\n      }\n\n      var ctx = el.getContext('2d');\n      if (!ctx) {\n        return null;\n      }\n\n      switch (methodName) {\n\n        case 'setLineDash':\n          return typeof ctx.setLineDash !== 'undefined';\n\n        default:\n          return null;\n      }\n    }\n  });\n\n  /**\n   * Returns JSON representation of canvas\n   * @function\n   * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n   * @return {String} JSON string\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#serialization}\n   * @see {@link http://jsfiddle.net/fabricjs/pec86/|jsFiddle demo}\n   * @example <caption>JSON without additional properties</caption>\n   * var json = canvas.toJSON();\n   * @example <caption>JSON with additional properties included</caption>\n   * var json = canvas.toJSON(['lockMovementX', 'lockMovementY', 'lockRotation', 'lockScalingX', 'lockScalingY', 'lockUniScaling']);\n   * @example <caption>JSON without default values</caption>\n   * canvas.includeDefaultValues = false;\n   * var json = canvas.toJSON();\n   */\n  fabric.StaticCanvas.prototype.toJSON = fabric.StaticCanvas.prototype.toObject;\n\n  if (fabric.isLikelyNode) {\n    fabric.StaticCanvas.prototype.createPNGStream = function() {\n      var impl = getNodeCanvas(this.lowerCanvasEl);\n      return impl && impl.createPNGStream();\n    };\n    fabric.StaticCanvas.prototype.createJPEGStream = function(opts) {\n      var impl = getNodeCanvas(this.lowerCanvasEl);\n      return impl && impl.createJPEGStream(opts);\n    };\n  }\n})();\n\n\n/**\n * BaseBrush class\n * @class fabric.BaseBrush\n * @see {@link http://fabricjs.com/freedrawing|Freedrawing demo}\n */\nfabric.BaseBrush = fabric.util.createClass(/** @lends fabric.BaseBrush.prototype */ {\n\n  /**\n   * Color of a brush\n   * @type String\n   * @default\n   */\n  color: 'rgb(0, 0, 0)',\n\n  /**\n   * Width of a brush, has to be a Number, no string literals\n   * @type Number\n   * @default\n   */\n  width: 1,\n\n  /**\n   * Shadow object representing shadow of this shape.\n   * <b>Backwards incompatibility note:</b> This property replaces \"shadowColor\" (String), \"shadowOffsetX\" (Number),\n   * \"shadowOffsetY\" (Number) and \"shadowBlur\" (Number) since v1.2.12\n   * @type fabric.Shadow\n   * @default\n   */\n  shadow: null,\n\n  /**\n   * Line endings style of a brush (one of \"butt\", \"round\", \"square\")\n   * @type String\n   * @default\n   */\n  strokeLineCap: 'round',\n\n  /**\n   * Corner style of a brush (one of \"bevel\", \"round\", \"miter\")\n   * @type String\n   * @default\n   */\n  strokeLineJoin: 'round',\n\n  /**\n   * Maximum miter length (used for strokeLineJoin = \"miter\") of a brush's\n   * @type Number\n   * @default\n   */\n  strokeMiterLimit:         10,\n\n  /**\n   * Stroke Dash Array.\n   * @type Array\n   * @default\n   */\n  strokeDashArray: null,\n\n  /**\n   * Sets shadow of an object\n   * @param {Object|String} [options] Options object or string (e.g. \"2px 2px 10px rgba(0,0,0,0.2)\")\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  setShadow: function(options) {\n    this.shadow = new fabric.Shadow(options);\n    return this;\n  },\n\n  /**\n   * Sets brush styles\n   * @private\n   */\n  _setBrushStyles: function() {\n    var ctx = this.canvas.contextTop;\n    ctx.strokeStyle = this.color;\n    ctx.lineWidth = this.width;\n    ctx.lineCap = this.strokeLineCap;\n    ctx.miterLimit = this.strokeMiterLimit;\n    ctx.lineJoin = this.strokeLineJoin;\n    if (fabric.StaticCanvas.supports('setLineDash')) {\n      ctx.setLineDash(this.strokeDashArray || []);\n    }\n  },\n\n  /**\n   * Sets the transformation on given context\n   * @param {RenderingContext2d} ctx context to render on\n   * @private\n   */\n  _saveAndTransform: function(ctx) {\n    var v = this.canvas.viewportTransform;\n    ctx.save();\n    ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n  },\n\n  /**\n   * Sets brush shadow styles\n   * @private\n   */\n  _setShadow: function() {\n    if (!this.shadow) {\n      return;\n    }\n\n    var canvas = this.canvas,\n        shadow = this.shadow,\n        ctx = canvas.contextTop,\n        zoom = canvas.getZoom();\n    if (canvas && canvas._isRetinaScaling()) {\n      zoom *= fabric.devicePixelRatio;\n    }\n\n    ctx.shadowColor = shadow.color;\n    ctx.shadowBlur = shadow.blur * zoom;\n    ctx.shadowOffsetX = shadow.offsetX * zoom;\n    ctx.shadowOffsetY = shadow.offsetY * zoom;\n  },\n\n  needsFullRender: function() {\n    var color = new fabric.Color(this.color);\n    return color.getAlpha() < 1 || !!this.shadow;\n  },\n\n  /**\n   * Removes brush shadow styles\n   * @private\n   */\n  _resetShadow: function() {\n    var ctx = this.canvas.contextTop;\n\n    ctx.shadowColor = '';\n    ctx.shadowBlur = ctx.shadowOffsetX = ctx.shadowOffsetY = 0;\n  }\n});\n\n\n(function() {\n  /**\n   * PencilBrush class\n   * @class fabric.PencilBrush\n   * @extends fabric.BaseBrush\n   */\n  fabric.PencilBrush = fabric.util.createClass(fabric.BaseBrush, /** @lends fabric.PencilBrush.prototype */ {\n\n    /**\n     * Discard points that are less than `decimate` pixel distant from each other\n     * @type Number\n     * @default 0.4\n     */\n    decimate: 0.4,\n\n    /**\n     * Constructor\n     * @param {fabric.Canvas} canvas\n     * @return {fabric.PencilBrush} Instance of a pencil brush\n     */\n    initialize: function(canvas) {\n      this.canvas = canvas;\n      this._points = [];\n    },\n\n    /**\n     * Invoked inside on mouse down and mouse move\n     * @param {Object} pointer\n     */\n    _drawSegment: function (ctx, p1, p2) {\n      var midPoint = p1.midPointFrom(p2);\n      ctx.quadraticCurveTo(p1.x, p1.y, midPoint.x, midPoint.y);\n      return midPoint;\n    },\n\n    /**\n     * Inovoked on mouse down\n     * @param {Object} pointer\n     */\n    onMouseDown: function(pointer, options) {\n      if (!this.canvas._isMainEvent(options.e)) {\n        return;\n      }\n      this._prepareForDrawing(pointer);\n      // capture coordinates immediately\n      // this allows to draw dots (when movement never occurs)\n      this._captureDrawingPath(pointer);\n      this._render();\n    },\n\n    /**\n     * Inovoked on mouse move\n     * @param {Object} pointer\n     */\n    onMouseMove: function(pointer, options) {\n      if (!this.canvas._isMainEvent(options.e)) {\n        return;\n      }\n      if (this._captureDrawingPath(pointer) && this._points.length > 1) {\n        if (this.needsFullRender()) {\n          // redraw curve\n          // clear top canvas\n          this.canvas.clearContext(this.canvas.contextTop);\n          this._render();\n        }\n        else {\n          var points = this._points, length = points.length, ctx = this.canvas.contextTop;\n          // draw the curve update\n          this._saveAndTransform(ctx);\n          if (this.oldEnd) {\n            ctx.beginPath();\n            ctx.moveTo(this.oldEnd.x, this.oldEnd.y);\n          }\n          this.oldEnd = this._drawSegment(ctx, points[length - 2], points[length - 1], true);\n          ctx.stroke();\n          ctx.restore();\n        }\n      }\n    },\n\n    /**\n     * Invoked on mouse up\n     */\n    onMouseUp: function(options) {\n      if (!this.canvas._isMainEvent(options.e)) {\n        return true;\n      }\n      this.oldEnd = undefined;\n      this._finalizeAndAddPath();\n      return false;\n    },\n\n    /**\n     * @private\n     * @param {Object} pointer Actual mouse position related to the canvas.\n     */\n    _prepareForDrawing: function(pointer) {\n\n      var p = new fabric.Point(pointer.x, pointer.y);\n\n      this._reset();\n      this._addPoint(p);\n      this.canvas.contextTop.moveTo(p.x, p.y);\n    },\n\n    /**\n     * @private\n     * @param {fabric.Point} point Point to be added to points array\n     */\n    _addPoint: function(point) {\n      if (this._points.length > 1 && point.eq(this._points[this._points.length - 1])) {\n        return false;\n      }\n      this._points.push(point);\n      return true;\n    },\n\n    /**\n     * Clear points array and set contextTop canvas style.\n     * @private\n     */\n    _reset: function() {\n      this._points = [];\n      this._setBrushStyles();\n      this._setShadow();\n    },\n\n    /**\n     * @private\n     * @param {Object} pointer Actual mouse position related to the canvas.\n     */\n    _captureDrawingPath: function(pointer) {\n      var pointerPoint = new fabric.Point(pointer.x, pointer.y);\n      return this._addPoint(pointerPoint);\n    },\n\n    /**\n     * Draw a smooth path on the topCanvas using quadraticCurveTo\n     * @private\n     */\n    _render: function() {\n      var ctx  = this.canvas.contextTop, i, len,\n          p1 = this._points[0],\n          p2 = this._points[1];\n\n      this._saveAndTransform(ctx);\n      ctx.beginPath();\n      //if we only have 2 points in the path and they are the same\n      //it means that the user only clicked the canvas without moving the mouse\n      //then we should be drawing a dot. A path isn't drawn between two identical dots\n      //that's why we set them apart a bit\n      if (this._points.length === 2 && p1.x === p2.x && p1.y === p2.y) {\n        var width = this.width / 1000;\n        p1 = new fabric.Point(p1.x, p1.y);\n        p2 = new fabric.Point(p2.x, p2.y);\n        p1.x -= width;\n        p2.x += width;\n      }\n      ctx.moveTo(p1.x, p1.y);\n\n      for (i = 1, len = this._points.length; i < len; i++) {\n        // we pick the point between pi + 1 & pi + 2 as the\n        // end point and p1 as our control point.\n        this._drawSegment(ctx, p1, p2);\n        p1 = this._points[i];\n        p2 = this._points[i + 1];\n      }\n      // Draw last line as a straight line while\n      // we wait for the next point to be able to calculate\n      // the bezier control point\n      ctx.lineTo(p1.x, p1.y);\n      ctx.stroke();\n      ctx.restore();\n    },\n\n    /**\n     * Converts points to SVG path\n     * @param {Array} points Array of points\n     * @return {String} SVG path\n     */\n    convertPointsToSVGPath: function(points) {\n      var path = [], i, width = this.width / 1000,\n          p1 = new fabric.Point(points[0].x, points[0].y),\n          p2 = new fabric.Point(points[1].x, points[1].y),\n          len = points.length, multSignX = 1, multSignY = 0, manyPoints = len > 2;\n\n      if (manyPoints) {\n        multSignX = points[2].x < p2.x ? -1 : points[2].x === p2.x ? 0 : 1;\n        multSignY = points[2].y < p2.y ? -1 : points[2].y === p2.y ? 0 : 1;\n      }\n      path.push('M ', p1.x - multSignX * width, ' ', p1.y - multSignY * width, ' ');\n      for (i = 1; i < len; i++) {\n        if (!p1.eq(p2)) {\n          var midPoint = p1.midPointFrom(p2);\n          // p1 is our bezier control point\n          // midpoint is our endpoint\n          // start point is p(i-1) value.\n          path.push('Q ', p1.x, ' ', p1.y, ' ', midPoint.x, ' ', midPoint.y, ' ');\n        }\n        p1 = points[i];\n        if ((i + 1) < points.length) {\n          p2 = points[i + 1];\n        }\n      }\n      if (manyPoints) {\n        multSignX = p1.x > points[i - 2].x ? 1 : p1.x === points[i - 2].x ? 0 : -1;\n        multSignY = p1.y > points[i - 2].y ? 1 : p1.y === points[i - 2].y ? 0 : -1;\n      }\n      path.push('L ', p1.x + multSignX * width, ' ', p1.y + multSignY * width);\n      return path;\n    },\n\n    /**\n     * Creates fabric.Path object to add on canvas\n     * @param {String} pathData Path data\n     * @return {fabric.Path} Path to add on canvas\n     */\n    createPath: function(pathData) {\n      var path = new fabric.Path(pathData, {\n        fill: null,\n        stroke: this.color,\n        strokeWidth: this.width,\n        strokeLineCap: this.strokeLineCap,\n        strokeMiterLimit: this.strokeMiterLimit,\n        strokeLineJoin: this.strokeLineJoin,\n        strokeDashArray: this.strokeDashArray,\n      });\n      if (this.shadow) {\n        this.shadow.affectStroke = true;\n        path.setShadow(this.shadow);\n      }\n\n      return path;\n    },\n\n    /**\n     * Decimate poins array with the decimate value\n     */\n    decimatePoints: function(points, distance) {\n      if (points.length <= 2) {\n        return points;\n      }\n      var zoom = this.canvas.getZoom(), adjustedDistance = Math.pow(distance / zoom, 2),\n          i, l = points.length - 1, lastPoint = points[0], newPoints = [lastPoint],\n          cDistance;\n      for (i = 1; i < l; i++) {\n        cDistance = Math.pow(lastPoint.x - points[i].x, 2) + Math.pow(lastPoint.y - points[i].y, 2);\n        if (cDistance >= adjustedDistance) {\n          lastPoint = points[i];\n          newPoints.push(lastPoint);\n        }\n      }\n      if (newPoints.length === 1) {\n        newPoints.push(new fabric.Point(newPoints[0].x, newPoints[0].y));\n      }\n      return newPoints;\n    },\n\n    /**\n     * On mouseup after drawing the path on contextTop canvas\n     * we use the points captured to create an new fabric path object\n     * and add it to the fabric canvas.\n     */\n    _finalizeAndAddPath: function() {\n      var ctx = this.canvas.contextTop;\n      ctx.closePath();\n      if (this.decimate) {\n        this._points = this.decimatePoints(this._points, this.decimate);\n      }\n      var pathData = this.convertPointsToSVGPath(this._points).join('');\n      if (pathData === 'M 0 0 Q 0 0 0 0 L 0 0') {\n        // do not create 0 width/height paths, as they are\n        // rendered inconsistently across browsers\n        // Firefox 4, for example, renders a dot,\n        // whereas Chrome 10 renders nothing\n        this.canvas.requestRenderAll();\n        return;\n      }\n\n      var path = this.createPath(pathData);\n      this.canvas.clearContext(this.canvas.contextTop);\n      this.canvas.add(path);\n      this.canvas.requestRenderAll();\n      path.setCoords();\n      this._resetShadow();\n\n\n      // fire event 'path' created\n      this.canvas.fire('path:created', { path: path });\n    }\n  });\n})();\n\n\n/**\n * CircleBrush class\n * @class fabric.CircleBrush\n */\nfabric.CircleBrush = fabric.util.createClass(fabric.BaseBrush, /** @lends fabric.CircleBrush.prototype */ {\n\n  /**\n   * Width of a brush\n   * @type Number\n   * @default\n   */\n  width: 10,\n\n  /**\n   * Constructor\n   * @param {fabric.Canvas} canvas\n   * @return {fabric.CircleBrush} Instance of a circle brush\n   */\n  initialize: function(canvas) {\n    this.canvas = canvas;\n    this.points = [];\n  },\n\n  /**\n   * Invoked inside on mouse down and mouse move\n   * @param {Object} pointer\n   */\n  drawDot: function(pointer) {\n    var point = this.addPoint(pointer),\n        ctx = this.canvas.contextTop;\n    this._saveAndTransform(ctx);\n    this.dot(ctx, point);\n    ctx.restore();\n  },\n\n  dot: function(ctx, point) {\n    ctx.fillStyle = point.fill;\n    ctx.beginPath();\n    ctx.arc(point.x, point.y, point.radius, 0, Math.PI * 2, false);\n    ctx.closePath();\n    ctx.fill();\n  },\n\n  /**\n   * Invoked on mouse down\n   */\n  onMouseDown: function(pointer) {\n    this.points.length = 0;\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._setShadow();\n    this.drawDot(pointer);\n  },\n\n  /**\n   * Render the full state of the brush\n   * @private\n   */\n  _render: function() {\n    var ctx  = this.canvas.contextTop, i, len,\n        points = this.points;\n    this._saveAndTransform(ctx);\n    for (i = 0, len = points.length; i < len; i++) {\n      this.dot(ctx, points[i]);\n    }\n    ctx.restore();\n  },\n\n  /**\n   * Invoked on mouse move\n   * @param {Object} pointer\n   */\n  onMouseMove: function(pointer) {\n    if (this.needsFullRender()) {\n      this.canvas.clearContext(this.canvas.contextTop);\n      this.addPoint(pointer);\n      this._render();\n    }\n    else {\n      this.drawDot(pointer);\n    }\n  },\n\n  /**\n   * Invoked on mouse up\n   */\n  onMouseUp: function() {\n    var originalRenderOnAddRemove = this.canvas.renderOnAddRemove, i, len;\n    this.canvas.renderOnAddRemove = false;\n\n    var circles = [];\n\n    for (i = 0, len = this.points.length; i < len; i++) {\n      var point = this.points[i],\n          circle = new fabric.Circle({\n            radius: point.radius,\n            left: point.x,\n            top: point.y,\n            originX: 'center',\n            originY: 'center',\n            fill: point.fill\n          });\n\n      this.shadow && circle.setShadow(this.shadow);\n\n      circles.push(circle);\n    }\n    var group = new fabric.Group(circles);\n    group.canvas = this.canvas;\n\n    this.canvas.add(group);\n    this.canvas.fire('path:created', { path: group });\n\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._resetShadow();\n    this.canvas.renderOnAddRemove = originalRenderOnAddRemove;\n    this.canvas.requestRenderAll();\n  },\n\n  /**\n   * @param {Object} pointer\n   * @return {fabric.Point} Just added pointer point\n   */\n  addPoint: function(pointer) {\n    var pointerPoint = new fabric.Point(pointer.x, pointer.y),\n\n        circleRadius = fabric.util.getRandomInt(\n          Math.max(0, this.width - 20), this.width + 20) / 2,\n\n        circleColor = new fabric.Color(this.color)\n          .setAlpha(fabric.util.getRandomInt(0, 100) / 100)\n          .toRgba();\n\n    pointerPoint.radius = circleRadius;\n    pointerPoint.fill = circleColor;\n\n    this.points.push(pointerPoint);\n\n    return pointerPoint;\n  }\n});\n\n\n/**\n * SprayBrush class\n * @class fabric.SprayBrush\n */\nfabric.SprayBrush = fabric.util.createClass( fabric.BaseBrush, /** @lends fabric.SprayBrush.prototype */ {\n\n  /**\n   * Width of a spray\n   * @type Number\n   * @default\n   */\n  width:              10,\n\n  /**\n   * Density of a spray (number of dots per chunk)\n   * @type Number\n   * @default\n   */\n  density:            20,\n\n  /**\n   * Width of spray dots\n   * @type Number\n   * @default\n   */\n  dotWidth:           1,\n\n  /**\n   * Width variance of spray dots\n   * @type Number\n   * @default\n   */\n  dotWidthVariance:   1,\n\n  /**\n   * Whether opacity of a dot should be random\n   * @type Boolean\n   * @default\n   */\n  randomOpacity:        false,\n\n  /**\n   * Whether overlapping dots (rectangles) should be removed (for performance reasons)\n   * @type Boolean\n   * @default\n   */\n  optimizeOverlapping:  true,\n\n  /**\n   * Constructor\n   * @param {fabric.Canvas} canvas\n   * @return {fabric.SprayBrush} Instance of a spray brush\n   */\n  initialize: function(canvas) {\n    this.canvas = canvas;\n    this.sprayChunks = [];\n  },\n\n  /**\n   * Invoked on mouse down\n   * @param {Object} pointer\n   */\n  onMouseDown: function(pointer) {\n    this.sprayChunks.length = 0;\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._setShadow();\n\n    this.addSprayChunk(pointer);\n    this.render(this.sprayChunkPoints);\n  },\n\n  /**\n   * Invoked on mouse move\n   * @param {Object} pointer\n   */\n  onMouseMove: function(pointer) {\n    this.addSprayChunk(pointer);\n    this.render(this.sprayChunkPoints);\n  },\n\n  /**\n   * Invoked on mouse up\n   */\n  onMouseUp: function() {\n    var originalRenderOnAddRemove = this.canvas.renderOnAddRemove;\n    this.canvas.renderOnAddRemove = false;\n\n    var rects = [];\n\n    for (var i = 0, ilen = this.sprayChunks.length; i < ilen; i++) {\n      var sprayChunk = this.sprayChunks[i];\n\n      for (var j = 0, jlen = sprayChunk.length; j < jlen; j++) {\n\n        var rect = new fabric.Rect({\n          width: sprayChunk[j].width,\n          height: sprayChunk[j].width,\n          left: sprayChunk[j].x + 1,\n          top: sprayChunk[j].y + 1,\n          originX: 'center',\n          originY: 'center',\n          fill: this.color\n        });\n        rects.push(rect);\n      }\n    }\n\n    if (this.optimizeOverlapping) {\n      rects = this._getOptimizedRects(rects);\n    }\n\n    var group = new fabric.Group(rects);\n    this.shadow && group.setShadow(this.shadow);\n    this.canvas.add(group);\n    this.canvas.fire('path:created', { path: group });\n\n    this.canvas.clearContext(this.canvas.contextTop);\n    this._resetShadow();\n    this.canvas.renderOnAddRemove = originalRenderOnAddRemove;\n    this.canvas.requestRenderAll();\n  },\n\n  /**\n   * @private\n   * @param {Array} rects\n   */\n  _getOptimizedRects: function(rects) {\n\n    // avoid creating duplicate rects at the same coordinates\n    var uniqueRects = { }, key, i, len;\n\n    for (i = 0, len = rects.length; i < len; i++) {\n      key = rects[i].left + '' + rects[i].top;\n      if (!uniqueRects[key]) {\n        uniqueRects[key] = rects[i];\n      }\n    }\n    var uniqueRectsArray = [];\n    for (key in uniqueRects) {\n      uniqueRectsArray.push(uniqueRects[key]);\n    }\n\n    return uniqueRectsArray;\n  },\n\n  /**\n   * Render new chunk of spray brush\n   */\n  render: function(sprayChunk) {\n    var ctx = this.canvas.contextTop, i, len;\n    ctx.fillStyle = this.color;\n\n    this._saveAndTransform(ctx);\n\n    for (i = 0, len = sprayChunk.length; i < len; i++) {\n      var point = sprayChunk[i];\n      if (typeof point.opacity !== 'undefined') {\n        ctx.globalAlpha = point.opacity;\n      }\n      ctx.fillRect(point.x, point.y, point.width, point.width);\n    }\n    ctx.restore();\n  },\n\n  /**\n   * Render all spray chunks\n   */\n  _render: function() {\n    var ctx = this.canvas.contextTop, i, ilen;\n    ctx.fillStyle = this.color;\n\n    this._saveAndTransform(ctx);\n\n    for (i = 0, ilen = this.sprayChunks.length; i < ilen; i++) {\n      this.render(this.sprayChunks[i]);\n    }\n    ctx.restore();\n  },\n\n  /**\n   * @param {Object} pointer\n   */\n  addSprayChunk: function(pointer) {\n    this.sprayChunkPoints = [];\n\n    var x, y, width, radius = this.width / 2, i;\n\n    for (i = 0; i < this.density; i++) {\n\n      x = fabric.util.getRandomInt(pointer.x - radius, pointer.x + radius);\n      y = fabric.util.getRandomInt(pointer.y - radius, pointer.y + radius);\n\n      if (this.dotWidthVariance) {\n        width = fabric.util.getRandomInt(\n          // bottom clamp width to 1\n          Math.max(1, this.dotWidth - this.dotWidthVariance),\n          this.dotWidth + this.dotWidthVariance);\n      }\n      else {\n        width = this.dotWidth;\n      }\n\n      var point = new fabric.Point(x, y);\n      point.width = width;\n\n      if (this.randomOpacity) {\n        point.opacity = fabric.util.getRandomInt(0, 100) / 100;\n      }\n\n      this.sprayChunkPoints.push(point);\n    }\n\n    this.sprayChunks.push(this.sprayChunkPoints);\n  }\n});\n\n\n/**\n * PatternBrush class\n * @class fabric.PatternBrush\n * @extends fabric.BaseBrush\n */\nfabric.PatternBrush = fabric.util.createClass(fabric.PencilBrush, /** @lends fabric.PatternBrush.prototype */ {\n\n  getPatternSrc: function() {\n\n    var dotWidth = 20,\n        dotDistance = 5,\n        patternCanvas = fabric.util.createCanvasElement(),\n        patternCtx = patternCanvas.getContext('2d');\n\n    patternCanvas.width = patternCanvas.height = dotWidth + dotDistance;\n\n    patternCtx.fillStyle = this.color;\n    patternCtx.beginPath();\n    patternCtx.arc(dotWidth / 2, dotWidth / 2, dotWidth / 2, 0, Math.PI * 2, false);\n    patternCtx.closePath();\n    patternCtx.fill();\n\n    return patternCanvas;\n  },\n\n  getPatternSrcFunction: function() {\n    return String(this.getPatternSrc).replace('this.color', '\"' + this.color + '\"');\n  },\n\n  /**\n   * Creates \"pattern\" instance property\n   */\n  getPattern: function() {\n    return this.canvas.contextTop.createPattern(this.source || this.getPatternSrc(), 'repeat');\n  },\n\n  /**\n   * Sets brush styles\n   */\n  _setBrushStyles: function() {\n    this.callSuper('_setBrushStyles');\n    this.canvas.contextTop.strokeStyle = this.getPattern();\n  },\n\n  /**\n   * Creates path\n   */\n  createPath: function(pathData) {\n    var path = this.callSuper('createPath', pathData),\n        topLeft = path._getLeftTopCoords().scalarAdd(path.strokeWidth / 2);\n\n    path.stroke = new fabric.Pattern({\n      source: this.source || this.getPatternSrcFunction(),\n      offsetX: -topLeft.x,\n      offsetY: -topLeft.y\n    });\n    return path;\n  }\n});\n\n\n(function() {\n\n  var getPointer = fabric.util.getPointer,\n      degreesToRadians = fabric.util.degreesToRadians,\n      radiansToDegrees = fabric.util.radiansToDegrees,\n      atan2 = Math.atan2,\n      abs = Math.abs,\n      supportLineDash = fabric.StaticCanvas.supports('setLineDash'),\n\n      STROKE_OFFSET = 0.5;\n\n  /**\n   * Canvas class\n   * @class fabric.Canvas\n   * @extends fabric.StaticCanvas\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#canvas}\n   * @see {@link fabric.Canvas#initialize} for constructor definition\n   *\n   * @fires object:modified at the end of a transform or any change when statefull is true\n   * @fires object:rotated at the end of a rotation transform\n   * @fires object:scaled at the end of a scale transform\n   * @fires object:moved at the end of translation transform\n   * @fires object:skewed at the end of a skew transform\n   * @fires object:rotating while an object is being rotated from the control\n   * @fires object:scaling while an object is being scaled by controls\n   * @fires object:moving while an object is being dragged\n   * @fires object:skewing while an object is being skewed from the controls\n   * @fires object:selected this event is deprecated. use selection:created\n   *\n   * @fires before:transform before a transform is is started\n   * @fires before:selection:cleared\n   * @fires selection:cleared\n   * @fires selection:updated\n   * @fires selection:created\n   *\n   * @fires path:created after a drawing operation ends and the path is added\n   * @fires mouse:down\n   * @fires mouse:move\n   * @fires mouse:up\n   * @fires mouse:down:before  on mouse down, before the inner fabric logic runs\n   * @fires mouse:move:before on mouse move, before the inner fabric logic runs\n   * @fires mouse:up:before on mouse up, before the inner fabric logic runs\n   * @fires mouse:over\n   * @fires mouse:out\n   * @fires mouse:dblclick whenever a native dbl click event fires on the canvas.\n   *\n   * @fires dragover\n   * @fires dragenter\n   * @fires dragleave\n   * @fires drop\n   * @fires after:render at the end of the render process, receives the context in the callback\n   * @fires before:render at start the render process, receives the context in the callback\n   *\n   */\n  fabric.Canvas = fabric.util.createClass(fabric.StaticCanvas, /** @lends fabric.Canvas.prototype */ {\n\n    /**\n     * Constructor\n     * @param {HTMLElement | String} el &lt;canvas> element to initialize instance on\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(el, options) {\n      options || (options = { });\n      this.renderAndResetBound = this.renderAndReset.bind(this);\n      this.requestRenderAllBound = this.requestRenderAll.bind(this);\n      this._initStatic(el, options);\n      this._initInteractive();\n      this._createCacheCanvas();\n    },\n\n    /**\n     * When true, objects can be transformed by one side (unproportionally)\n     * @type Boolean\n     * @default\n     */\n    uniScaleTransform:      false,\n\n    /**\n     * Indicates which key enable unproportional scaling\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled feature disabled.\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    uniScaleKey:           'shiftKey',\n\n    /**\n     * When true, objects use center point as the origin of scale transformation.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredScaling:        false,\n\n    /**\n     * When true, objects use center point as the origin of rotate transformation.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredRotation:       false,\n\n    /**\n     * Indicates which key enable centered Transform\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled feature disabled.\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    centeredKey:           'altKey',\n\n    /**\n     * Indicates which key enable alternate action on corner\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled feature disabled.\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    altActionKey:           'shiftKey',\n\n    /**\n     * Indicates that canvas is interactive. This property should not be changed.\n     * @type Boolean\n     * @default\n     */\n    interactive:            true,\n\n    /**\n     * Indicates whether group selection should be enabled\n     * @type Boolean\n     * @default\n     */\n    selection:              true,\n\n    /**\n     * Indicates which key or keys enable multiple click selection\n     * Pass value as a string or array of strings\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * If `null` or empty or containing any other string that is not a modifier key\n     * feature is disabled.\n     * @since 1.6.2\n     * @type String|Array\n     * @default\n     */\n    selectionKey:           'shiftKey',\n\n    /**\n     * Indicates which key enable alternative selection\n     * in case of target overlapping with active object\n     * values: 'altKey', 'shiftKey', 'ctrlKey'.\n     * For a series of reason that come from the general expectations on how\n     * things should work, this feature works only for preserveObjectStacking true.\n     * If `null` or 'none' or any other string that is not a modifier key\n     * feature is disabled.\n     * @since 1.6.5\n     * @type null|String\n     * @default\n     */\n    altSelectionKey:           null,\n\n    /**\n     * Color of selection\n     * @type String\n     * @default\n     */\n    selectionColor:         'rgba(100, 100, 255, 0.3)', // blue\n\n    /**\n     * Default dash array pattern\n     * If not empty the selection border is dashed\n     * @type Array\n     */\n    selectionDashArray:     [],\n\n    /**\n     * Color of the border of selection (usually slightly darker than color of selection itself)\n     * @type String\n     * @default\n     */\n    selectionBorderColor:   'rgba(255, 255, 255, 0.3)',\n\n    /**\n     * Width of a line used in object/group selection\n     * @type Number\n     * @default\n     */\n    selectionLineWidth:     1,\n\n    /**\n     * Select only shapes that are fully contained in the dragged selection rectangle.\n     * @type Boolean\n     * @default\n     */\n    selectionFullyContained: false,\n\n    /**\n     * Default cursor value used when hovering over an object on canvas\n     * @type String\n     * @default\n     */\n    hoverCursor:            'move',\n\n    /**\n     * Default cursor value used when moving an object on canvas\n     * @type String\n     * @default\n     */\n    moveCursor:             'move',\n\n    /**\n     * Default cursor value used for the entire canvas\n     * @type String\n     * @default\n     */\n    defaultCursor:          'default',\n\n    /**\n     * Cursor value used during free drawing\n     * @type String\n     * @default\n     */\n    freeDrawingCursor:      'crosshair',\n\n    /**\n     * Cursor value used for rotation point\n     * @type String\n     * @default\n     */\n    rotationCursor:         'crosshair',\n\n    /**\n     * Cursor value used for disabled elements ( corners with disabled action )\n     * @type String\n     * @since 2.0.0\n     * @default\n     */\n    notAllowedCursor:         'not-allowed',\n\n    /**\n     * Default element class that's given to wrapper (div) element of canvas\n     * @type String\n     * @default\n     */\n    containerClass:         'canvas-container',\n\n    /**\n     * When true, object detection happens on per-pixel basis rather than on per-bounding-box\n     * @type Boolean\n     * @default\n     */\n    perPixelTargetFind:     false,\n\n    /**\n     * Number of pixels around target pixel to tolerate (consider active) during object detection\n     * @type Number\n     * @default\n     */\n    targetFindTolerance:    0,\n\n    /**\n     * When true, target detection is skipped when hovering over canvas. This can be used to improve performance.\n     * @type Boolean\n     * @default\n     */\n    skipTargetFind:         false,\n\n    /**\n     * When true, mouse events on canvas (mousedown/mousemove/mouseup) result in free drawing.\n     * After mousedown, mousemove creates a shape,\n     * and then mouseup finalizes it and adds an instance of `fabric.Path` onto canvas.\n     * @tutorial {@link http://fabricjs.com/fabric-intro-part-4#free_drawing}\n     * @type Boolean\n     * @default\n     */\n    isDrawingMode:          false,\n\n    /**\n     * Indicates whether objects should remain in current stack position when selected.\n     * When false objects are brought to top and rendered as part of the selection group\n     * @type Boolean\n     * @default\n     */\n    preserveObjectStacking: false,\n\n    /**\n     * Indicates the angle that an object will lock to while rotating.\n     * @type Number\n     * @since 1.6.7\n     * @default\n     */\n    snapAngle: 0,\n\n    /**\n     * Indicates the distance from the snapAngle the rotation will lock to the snapAngle.\n     * When `null`, the snapThreshold will default to the snapAngle.\n     * @type null|Number\n     * @since 1.6.7\n     * @default\n     */\n    snapThreshold: null,\n\n    /**\n     * Indicates if the right click on canvas can output the context menu or not\n     * @type Boolean\n     * @since 1.6.5\n     * @default\n     */\n    stopContextMenu: false,\n\n    /**\n     * Indicates if the canvas can fire right click events\n     * @type Boolean\n     * @since 1.6.5\n     * @default\n     */\n    fireRightClick: false,\n\n    /**\n     * Indicates if the canvas can fire middle click events\n     * @type Boolean\n     * @since 1.7.8\n     * @default\n     */\n    fireMiddleClick: false,\n\n    /**\n     * Keep track of the subTargets for Mouse Events\n     * @type fabric.Object[]\n     */\n    targets: [],\n\n    /**\n     * Keep track of the hovered target\n     * @type fabric.Object\n     * @private\n     */\n    _hoveredTarget: null,\n\n    /**\n     * hold the list of nested targets hovered\n     * @type fabric.Object[]\n     * @private\n     */\n    _hoveredTargets: [],\n\n    /**\n     * @private\n     */\n    _initInteractive: function() {\n      this._currentTransform = null;\n      this._groupSelector = null;\n      this._initWrapperElement();\n      this._createUpperCanvas();\n      this._initEventListeners();\n\n      this._initRetinaScaling();\n\n      this.freeDrawingBrush = fabric.PencilBrush && new fabric.PencilBrush(this);\n\n      this.calcOffset();\n    },\n\n    /**\n     * Divides objects in two groups, one to render immediately\n     * and one to render as activeGroup.\n     * @return {Array} objects to render immediately and pushes the other in the activeGroup.\n     */\n    _chooseObjectsToRender: function() {\n      var activeObjects = this.getActiveObjects(),\n          object, objsToRender, activeGroupObjects;\n\n      if (activeObjects.length > 0 && !this.preserveObjectStacking) {\n        objsToRender = [];\n        activeGroupObjects = [];\n        for (var i = 0, length = this._objects.length; i < length; i++) {\n          object = this._objects[i];\n          if (activeObjects.indexOf(object) === -1 ) {\n            objsToRender.push(object);\n          }\n          else {\n            activeGroupObjects.push(object);\n          }\n        }\n        if (activeObjects.length > 1) {\n          this._activeObject._objects = activeGroupObjects;\n        }\n        objsToRender.push.apply(objsToRender, activeGroupObjects);\n      }\n      else {\n        objsToRender = this._objects;\n      }\n      return objsToRender;\n    },\n\n    /**\n     * Renders both the top canvas and the secondary container canvas.\n     * @return {fabric.Canvas} instance\n     * @chainable\n     */\n    renderAll: function () {\n      if (this.contextTopDirty && !this._groupSelector && !this.isDrawingMode) {\n        this.clearContext(this.contextTop);\n        this.contextTopDirty = false;\n      }\n      if (this.hasLostContext) {\n        this.renderTopLayer(this.contextTop);\n      }\n      var canvasToDrawOn = this.contextContainer;\n      this.renderCanvas(canvasToDrawOn, this._chooseObjectsToRender());\n      return this;\n    },\n\n    renderTopLayer: function(ctx) {\n      ctx.save();\n      if (this.isDrawingMode && this._isCurrentlyDrawing) {\n        this.freeDrawingBrush && this.freeDrawingBrush._render();\n        this.contextTopDirty = true;\n      }\n      // we render the top context - last object\n      if (this.selection && this._groupSelector) {\n        this._drawSelection(ctx);\n        this.contextTopDirty = true;\n      }\n      ctx.restore();\n    },\n\n    /**\n     * Method to render only the top canvas.\n     * Also used to render the group selection box.\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    renderTop: function () {\n      var ctx = this.contextTop;\n      this.clearContext(ctx);\n      this.renderTopLayer(ctx);\n      this.fire('after:render');\n      return this;\n    },\n\n    /**\n     * Resets the current transform to its original values and chooses the type of resizing based on the event\n     * @private\n     */\n    _resetCurrentTransform: function() {\n      var t = this._currentTransform;\n\n      t.target.set({\n        scaleX: t.original.scaleX,\n        scaleY: t.original.scaleY,\n        skewX: t.original.skewX,\n        skewY: t.original.skewY,\n        left: t.original.left,\n        top: t.original.top\n      });\n\n      if (this._shouldCenterTransform(t.target)) {\n        if (t.originX !== 'center') {\n          if (t.originX === 'right') {\n            t.mouseXSign = -1;\n          }\n          else {\n            t.mouseXSign = 1;\n          }\n        }\n        if (t.originY !== 'center') {\n          if (t.originY === 'bottom') {\n            t.mouseYSign = -1;\n          }\n          else {\n            t.mouseYSign = 1;\n          }\n        }\n\n        t.originX = 'center';\n        t.originY = 'center';\n      }\n      else {\n        t.originX = t.original.originX;\n        t.originY = t.original.originY;\n      }\n    },\n\n    /**\n     * Checks if point is contained within an area of given object\n     * @param {Event} e Event object\n     * @param {fabric.Object} target Object to test against\n     * @param {Object} [point] x,y object of point coordinates we want to check.\n     * @return {Boolean} true if point is contained within an area of given object\n     */\n    containsPoint: function (e, target, point) {\n      var ignoreZoom = true,\n          pointer = point || this.getPointer(e, ignoreZoom),\n          xy;\n\n      if (target.group && target.group === this._activeObject && target.group.type === 'activeSelection') {\n        xy = this._normalizePointer(target.group, pointer);\n      }\n      else {\n        xy = { x: pointer.x, y: pointer.y };\n      }\n      // http://www.geog.ubc.ca/courses/klink/gis.notes/ncgia/u32.html\n      // http://idav.ucdavis.edu/~okreylos/TAship/Spring2000/PointInPolygon.html\n      return (target.containsPoint(xy) || target._findTargetCorner(pointer));\n    },\n\n    /**\n     * @private\n     */\n    _normalizePointer: function (object, pointer) {\n      var m = object.calcTransformMatrix(),\n          invertedM = fabric.util.invertTransform(m),\n          vptPointer = this.restorePointerVpt(pointer);\n      return fabric.util.transformPoint(vptPointer, invertedM);\n    },\n\n    /**\n     * Returns true if object is transparent at a certain location\n     * @param {fabric.Object} target Object to check\n     * @param {Number} x Left coordinate\n     * @param {Number} y Top coordinate\n     * @return {Boolean}\n     */\n    isTargetTransparent: function (target, x, y) {\n      // in case the target is the activeObject, we cannot execute this optimization\n      // because we need to draw controls too.\n      if (target.shouldCache() && target._cacheCanvas && target !== this._activeObject) {\n        var normalizedPointer = this._normalizePointer(target, {x: x, y: y}),\n            targetRelativeX = Math.max(target.cacheTranslationX + (normalizedPointer.x * target.zoomX), 0),\n            targetRelativeY = Math.max(target.cacheTranslationY + (normalizedPointer.y * target.zoomY), 0);\n\n        var isTransparent = fabric.util.isTransparent(\n          target._cacheContext, Math.round(targetRelativeX), Math.round(targetRelativeY), this.targetFindTolerance);\n\n        return isTransparent;\n      }\n\n      var ctx = this.contextCache,\n          originalColor = target.selectionBackgroundColor, v = this.viewportTransform;\n\n      target.selectionBackgroundColor = '';\n\n      this.clearContext(ctx);\n\n      ctx.save();\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      target.render(ctx);\n      ctx.restore();\n\n      target === this._activeObject && target._renderControls(ctx, {\n        hasBorders: false,\n        transparentCorners: false\n      }, {\n        hasBorders: false,\n      });\n\n      target.selectionBackgroundColor = originalColor;\n\n      var isTransparent = fabric.util.isTransparent(\n        ctx, x, y, this.targetFindTolerance);\n\n      return isTransparent;\n    },\n\n    /**\n     * takes an event and determins if selection key has been pressed\n     * @private\n     * @param {Event} e Event object\n     */\n    _isSelectionKeyPressed: function(e) {\n      var selectionKeyPressed = false;\n\n      if (Object.prototype.toString.call(this.selectionKey) === '[object Array]') {\n        selectionKeyPressed = !!this.selectionKey.find(function(key) { return e[key] === true; });\n      }\n      else {\n        selectionKeyPressed = e[this.selectionKey];\n      }\n\n      return selectionKeyPressed;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     */\n    _shouldClearSelection: function (e, target) {\n      var activeObjects = this.getActiveObjects(),\n          activeObject = this._activeObject;\n\n      return (\n        !target\n        ||\n        (target &&\n          activeObject &&\n          activeObjects.length > 1 &&\n          activeObjects.indexOf(target) === -1 &&\n          activeObject !== target &&\n          !this._isSelectionKeyPressed(e))\n        ||\n        (target && !target.evented)\n        ||\n        (target &&\n          !target.selectable &&\n          activeObject &&\n          activeObject !== target)\n      );\n    },\n\n    /**\n     * centeredScaling from object can't override centeredScaling from canvas.\n     * this should be fixed, since object setting should take precedence over canvas.\n     * @private\n     * @param {fabric.Object} target\n     */\n    _shouldCenterTransform: function (target) {\n      if (!target) {\n        return;\n      }\n\n      var t = this._currentTransform,\n          centerTransform;\n\n      if (t.action === 'scale' || t.action === 'scaleX' || t.action === 'scaleY') {\n        centerTransform = this.centeredScaling || target.centeredScaling;\n      }\n      else if (t.action === 'rotate') {\n        centerTransform = this.centeredRotation || target.centeredRotation;\n      }\n\n      return centerTransform ? !t.altKey : t.altKey;\n    },\n\n    /**\n     * @private\n     */\n    _getOriginFromCorner: function(target, corner) {\n      var origin = {\n        x: target.originX,\n        y: target.originY\n      };\n\n      if (corner === 'ml' || corner === 'tl' || corner === 'bl') {\n        origin.x = 'right';\n      }\n      else if (corner === 'mr' || corner === 'tr' || corner === 'br') {\n        origin.x = 'left';\n      }\n\n      if (corner === 'tl' || corner === 'mt' || corner === 'tr') {\n        origin.y = 'bottom';\n      }\n      else if (corner === 'bl' || corner === 'mb' || corner === 'br') {\n        origin.y = 'top';\n      }\n\n      return origin;\n    },\n\n    /**\n     * @private\n     * @param {Boolean} alreadySelected true if target is already selected\n     * @param {String} corner a string representing the corner ml, mr, tl ...\n     * @param {Event} e Event object\n     * @param {fabric.Object} [target] inserted back to help overriding. Unused\n     */\n    _getActionFromCorner: function(alreadySelected, corner, e /* target */) {\n      if (!corner || !alreadySelected) {\n        return 'drag';\n      }\n\n      switch (corner) {\n        case 'mtr':\n          return 'rotate';\n        case 'ml':\n        case 'mr':\n          return e[this.altActionKey] ? 'skewY' : 'scaleX';\n        case 'mt':\n        case 'mb':\n          return e[this.altActionKey] ? 'skewX' : 'scaleY';\n        default:\n          return 'scale';\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     */\n    _setupCurrentTransform: function (e, target, alreadySelected) {\n      if (!target) {\n        return;\n      }\n\n      var pointer = this.getPointer(e),\n          corner = target._findTargetCorner(this.getPointer(e, true)),\n          action = this._getActionFromCorner(alreadySelected, corner, e, target),\n          origin = this._getOriginFromCorner(target, corner);\n\n      this._currentTransform = {\n        target: target,\n        action: action,\n        corner: corner,\n        scaleX: target.scaleX,\n        scaleY: target.scaleY,\n        skewX: target.skewX,\n        skewY: target.skewY,\n        // used by transation\n        offsetX: pointer.x - target.left,\n        offsetY: pointer.y - target.top,\n        originX: origin.x,\n        originY: origin.y,\n        ex: pointer.x,\n        ey: pointer.y,\n        lastX: pointer.x,\n        lastY: pointer.y,\n        // unsure they are usefull anymore.\n        // left: target.left,\n        // top: target.top,\n        theta: degreesToRadians(target.angle),\n        // end of unsure\n        width: target.width * target.scaleX,\n        mouseXSign: 1,\n        mouseYSign: 1,\n        shiftKey: e.shiftKey,\n        altKey: e[this.centeredKey],\n        original: fabric.util.saveObjectTransform(target),\n      };\n\n      this._currentTransform.original.originX = origin.x;\n      this._currentTransform.original.originY = origin.y;\n\n      this._resetCurrentTransform();\n      this._beforeTransform(e);\n    },\n\n    /**\n     * Translates object by \"setting\" its left/top\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @return {Boolean} true if the translation occurred\n     */\n    _translateObject: function (x, y) {\n      var transform = this._currentTransform,\n          target = transform.target,\n          newLeft = x - transform.offsetX,\n          newTop = y - transform.offsetY,\n          moveX = !target.get('lockMovementX') && target.left !== newLeft,\n          moveY = !target.get('lockMovementY') && target.top !== newTop;\n\n      moveX && target.set('left', newLeft);\n      moveY && target.set('top', newTop);\n      return moveX || moveY;\n    },\n\n    /**\n     * Check if we are increasing a positive skew or lower it,\n     * checking mouse direction and pressed corner.\n     * @private\n     */\n    _changeSkewTransformOrigin: function(mouseMove, t, by) {\n      var property = 'originX', origins = { 0: 'center' },\n          skew = t.target.skewX, originA = 'left', originB = 'right',\n          corner = t.corner === 'mt' || t.corner === 'ml' ? 1 : -1,\n          flipSign = 1;\n\n      mouseMove = mouseMove > 0 ? 1 : -1;\n      if (by === 'y') {\n        skew = t.target.skewY;\n        originA = 'top';\n        originB = 'bottom';\n        property = 'originY';\n      }\n      origins[-1] = originA;\n      origins[1] = originB;\n\n      t.target.flipX && (flipSign *= -1);\n      t.target.flipY && (flipSign *= -1);\n\n      if (skew === 0) {\n        t.skewSign = -corner * mouseMove * flipSign;\n        t[property] = origins[-mouseMove];\n      }\n      else {\n        skew = skew > 0 ? 1 : -1;\n        t.skewSign = skew;\n        t[property] = origins[skew * corner * flipSign];\n      }\n    },\n\n    /**\n     * Skew object by mouse events\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @param {String} by Either 'x' or 'y'\n     * @return {Boolean} true if the skewing occurred\n     */\n    _skewObject: function (x, y, by) {\n      var t = this._currentTransform,\n          target = t.target, skewed = false,\n          lockSkewingX = target.get('lockSkewingX'),\n          lockSkewingY = target.get('lockSkewingY');\n\n      if ((lockSkewingX && by === 'x') || (lockSkewingY && by === 'y')) {\n        return false;\n      }\n\n      // Get the constraint point\n      var center = target.getCenterPoint(),\n          actualMouseByCenter = target.toLocalPoint(new fabric.Point(x, y), 'center', 'center')[by],\n          lastMouseByCenter = target.toLocalPoint(new fabric.Point(t.lastX, t.lastY), 'center', 'center')[by],\n          actualMouseByOrigin, constraintPosition, dim = target._getTransformedDimensions();\n\n      this._changeSkewTransformOrigin(actualMouseByCenter - lastMouseByCenter, t, by);\n      actualMouseByOrigin = target.toLocalPoint(new fabric.Point(x, y), t.originX, t.originY)[by];\n      constraintPosition = target.translateToOriginPoint(center, t.originX, t.originY);\n      // Actually skew the object\n      skewed = this._setObjectSkew(actualMouseByOrigin, t, by, dim);\n      t.lastX = x;\n      t.lastY = y;\n      // Make sure the constraints apply\n      target.setPositionByOrigin(constraintPosition, t.originX, t.originY);\n      return skewed;\n    },\n\n    /**\n     * Set object skew\n     * @private\n     * @return {Boolean} true if the skewing occurred\n     */\n    _setObjectSkew: function(localMouse, transform, by, _dim) {\n      var target = transform.target, newValue, skewed = false,\n          skewSign = transform.skewSign, newDim, dimNoSkew,\n          otherBy, _otherBy, _by, newDimMouse, skewX, skewY;\n\n      if (by === 'x') {\n        otherBy = 'y';\n        _otherBy = 'Y';\n        _by = 'X';\n        skewX = 0;\n        skewY = target.skewY;\n      }\n      else {\n        otherBy = 'x';\n        _otherBy = 'X';\n        _by = 'Y';\n        skewX = target.skewX;\n        skewY = 0;\n      }\n\n      dimNoSkew = target._getTransformedDimensions(skewX, skewY);\n      newDimMouse = 2 * Math.abs(localMouse) - dimNoSkew[by];\n      if (newDimMouse <= 2) {\n        newValue = 0;\n      }\n      else {\n        newValue = skewSign * Math.atan((newDimMouse / target['scale' + _by]) /\n                                        (dimNoSkew[otherBy] / target['scale' + _otherBy]));\n        newValue = fabric.util.radiansToDegrees(newValue);\n      }\n      skewed = target['skew' + _by] !== newValue;\n      target.set('skew' + _by, newValue);\n      if (target['skew' + _otherBy] !== 0) {\n        newDim = target._getTransformedDimensions();\n        newValue = (_dim[otherBy] / newDim[otherBy]) * target['scale' + _otherBy];\n        target.set('scale' + _otherBy, newValue);\n      }\n      return skewed;\n    },\n\n    /**\n     * Scales object by invoking its scaleX/scaleY methods\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @param {String} by Either 'x' or 'y' - specifies dimension constraint by which to scale an object.\n     *                    When not provided, an object is scaled by both dimensions equally\n     * @return {Boolean} true if the scaling occurred\n     */\n    _scaleObject: function (x, y, by) {\n      var t = this._currentTransform,\n          target = t.target,\n          lockScalingX = target.lockScalingX,\n          lockScalingY = target.lockScalingY,\n          lockScalingFlip = target.lockScalingFlip;\n\n      if (lockScalingX && lockScalingY) {\n        return false;\n      }\n\n      // Get the constraint point\n      var constraintPosition = target.translateToOriginPoint(target.getCenterPoint(), t.originX, t.originY),\n          localMouse = target.toLocalPoint(new fabric.Point(x, y), t.originX, t.originY),\n          dim = target._getTransformedDimensions(), scaled = false;\n\n      this._setLocalMouse(localMouse, t);\n\n      // Actually scale the object\n      scaled = this._setObjectScale(localMouse, t, lockScalingX, lockScalingY, by, lockScalingFlip, dim);\n\n      // Make sure the constraints apply\n      target.setPositionByOrigin(constraintPosition, t.originX, t.originY);\n      return scaled;\n    },\n\n    /**\n     * @private\n     * @return {Boolean} true if the scaling occurred\n     */\n    _setObjectScale: function(localMouse, transform, lockScalingX, lockScalingY, by, lockScalingFlip, _dim) {\n      var target = transform.target, forbidScalingX = false, forbidScalingY = false, scaled = false,\n          scaleX = localMouse.x * target.scaleX / _dim.x,\n          scaleY = localMouse.y * target.scaleY / _dim.y,\n          changeX = target.scaleX !== scaleX,\n          changeY = target.scaleY !== scaleY;\n\n      transform.newScaleX = scaleX;\n      transform.newScaleY = scaleY;\n      if (fabric.Textbox && by === 'x' && target instanceof fabric.Textbox) {\n        var w = target.width * (localMouse.x / _dim.x);\n        if (w >= target.getMinWidth()) {\n          scaled = w !== target.width;\n          target.set('width', w);\n          return scaled;\n        }\n        return false;\n      }\n\n      if (lockScalingFlip && scaleX <= 0 && scaleX < target.scaleX) {\n        forbidScalingX = true;\n        localMouse.x = 0;\n      }\n\n      if (lockScalingFlip && scaleY <= 0 && scaleY < target.scaleY) {\n        forbidScalingY = true;\n        localMouse.y = 0;\n      }\n\n      if (by === 'equally' && !lockScalingX && !lockScalingY) {\n        scaled = this._scaleObjectEqually(localMouse, target, transform, _dim);\n      }\n      else if (!by) {\n        forbidScalingX || lockScalingX || (target.set('scaleX', scaleX) && (scaled = scaled || changeX));\n        forbidScalingY || lockScalingY || (target.set('scaleY', scaleY) && (scaled = scaled || changeY));\n      }\n      else if (by === 'x' && !target.get('lockUniScaling')) {\n        forbidScalingX || lockScalingX || (target.set('scaleX', scaleX) && (scaled = changeX));\n      }\n      else if (by === 'y' && !target.get('lockUniScaling')) {\n        forbidScalingY || lockScalingY || (target.set('scaleY', scaleY) && (scaled = changeY));\n      }\n      forbidScalingX || forbidScalingY || this._flipObject(transform, by);\n      return scaled;\n    },\n\n    /**\n     * @private\n     * @return {Boolean} true if the scaling occurred\n     */\n    _scaleObjectEqually: function(localMouse, target, transform, _dim) {\n\n      var dist = localMouse.y + localMouse.x,\n          lastDist = _dim.y * transform.original.scaleY / target.scaleY +\n                     _dim.x * transform.original.scaleX / target.scaleX,\n          scaled, signX = localMouse.x < 0 ? -1 : 1,\n          signY = localMouse.y < 0 ? -1 : 1, newScaleX, newScaleY;\n\n      // We use transform.scaleX/Y instead of target.scaleX/Y\n      // because the object may have a min scale and we'll loose the proportions\n      newScaleX = signX * Math.abs(transform.original.scaleX * dist / lastDist);\n      newScaleY = signY * Math.abs(transform.original.scaleY * dist / lastDist);\n      scaled = newScaleX !== target.scaleX || newScaleY !== target.scaleY;\n      target.set('scaleX', newScaleX);\n      target.set('scaleY', newScaleY);\n      return scaled;\n    },\n\n    /**\n     * @private\n     */\n    _flipObject: function(transform, by) {\n      if (transform.newScaleX < 0 && by !== 'y') {\n        if (transform.originX === 'left') {\n          transform.originX = 'right';\n        }\n        else if (transform.originX === 'right') {\n          transform.originX = 'left';\n        }\n      }\n\n      if (transform.newScaleY < 0 && by !== 'x') {\n        if (transform.originY === 'top') {\n          transform.originY = 'bottom';\n        }\n        else if (transform.originY === 'bottom') {\n          transform.originY = 'top';\n        }\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setLocalMouse: function(localMouse, t) {\n      var target = t.target, zoom = this.getZoom(),\n          padding = target.padding / zoom;\n\n      if (t.originX === 'right') {\n        localMouse.x *= -1;\n      }\n      else if (t.originX === 'center') {\n        localMouse.x *= t.mouseXSign * 2;\n        if (localMouse.x < 0) {\n          t.mouseXSign = -t.mouseXSign;\n        }\n      }\n\n      if (t.originY === 'bottom') {\n        localMouse.y *= -1;\n      }\n      else if (t.originY === 'center') {\n        localMouse.y *= t.mouseYSign * 2;\n        if (localMouse.y < 0) {\n          t.mouseYSign = -t.mouseYSign;\n        }\n      }\n\n      // adjust the mouse coordinates when dealing with padding\n      if (abs(localMouse.x) > padding) {\n        if (localMouse.x < 0) {\n          localMouse.x += padding;\n        }\n        else {\n          localMouse.x -= padding;\n        }\n      }\n      else { // mouse is within the padding, set to 0\n        localMouse.x = 0;\n      }\n\n      if (abs(localMouse.y) > padding) {\n        if (localMouse.y < 0) {\n          localMouse.y += padding;\n        }\n        else {\n          localMouse.y -= padding;\n        }\n      }\n      else {\n        localMouse.y = 0;\n      }\n    },\n\n    /**\n     * Rotates object by invoking its rotate method\n     * @private\n     * @param {Number} x pointer's x coordinate\n     * @param {Number} y pointer's y coordinate\n     * @return {Boolean} true if the rotation occurred\n     */\n    _rotateObject: function (x, y) {\n\n      var t = this._currentTransform,\n          target = t.target, constraintPosition,\n          constraintPosition = target.translateToOriginPoint(target.getCenterPoint(), t.originX, t.originY);\n\n      if (target.lockRotation) {\n        return false;\n      }\n\n      var lastAngle = atan2(t.ey - constraintPosition.y, t.ex - constraintPosition.x),\n          curAngle = atan2(y - constraintPosition.y, x - constraintPosition.x),\n          angle = radiansToDegrees(curAngle - lastAngle + t.theta),\n          hasRotated = true;\n\n      if (target.snapAngle > 0) {\n        var snapAngle  = target.snapAngle,\n            snapThreshold  = target.snapThreshold || snapAngle,\n            rightAngleLocked = Math.ceil(angle / snapAngle) * snapAngle,\n            leftAngleLocked = Math.floor(angle / snapAngle) * snapAngle;\n\n        if (Math.abs(angle - leftAngleLocked) < snapThreshold) {\n          angle = leftAngleLocked;\n        }\n        else if (Math.abs(angle - rightAngleLocked) < snapThreshold) {\n          angle = rightAngleLocked;\n        }\n      }\n\n      // normalize angle to positive value\n      if (angle < 0) {\n        angle = 360 + angle;\n      }\n      angle %= 360;\n\n      if (target.angle === angle) {\n        hasRotated = false;\n      }\n      else {\n        // rotation only happen here\n        target.angle = angle;\n        // Make sure the constraints apply\n        target.setPositionByOrigin(constraintPosition, t.originX, t.originY);\n      }\n\n      return hasRotated;\n    },\n\n    /**\n     * Set the cursor type of the canvas element\n     * @param {String} value Cursor type of the canvas element.\n     * @see http://www.w3.org/TR/css3-ui/#cursor\n     */\n    setCursor: function (value) {\n      this.upperCanvasEl.style.cursor = value;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx to draw the selection on\n     */\n    _drawSelection: function (ctx) {\n      var groupSelector = this._groupSelector,\n          left = groupSelector.left,\n          top = groupSelector.top,\n          aleft = abs(left),\n          atop = abs(top);\n\n      if (this.selectionColor) {\n        ctx.fillStyle = this.selectionColor;\n\n        ctx.fillRect(\n          groupSelector.ex - ((left > 0) ? 0 : -left),\n          groupSelector.ey - ((top > 0) ? 0 : -top),\n          aleft,\n          atop\n        );\n      }\n\n      if (!this.selectionLineWidth || !this.selectionBorderColor) {\n        return;\n      }\n      ctx.lineWidth = this.selectionLineWidth;\n      ctx.strokeStyle = this.selectionBorderColor;\n\n      // selection border\n      if (this.selectionDashArray.length > 1 && !supportLineDash) {\n\n        var px = groupSelector.ex + STROKE_OFFSET - ((left > 0) ? 0 : aleft),\n            py = groupSelector.ey + STROKE_OFFSET - ((top > 0) ? 0 : atop);\n\n        ctx.beginPath();\n\n        fabric.util.drawDashedLine(ctx, px, py, px + aleft, py, this.selectionDashArray);\n        fabric.util.drawDashedLine(ctx, px, py + atop - 1, px + aleft, py + atop - 1, this.selectionDashArray);\n        fabric.util.drawDashedLine(ctx, px, py, px, py + atop, this.selectionDashArray);\n        fabric.util.drawDashedLine(ctx, px + aleft - 1, py, px + aleft - 1, py + atop, this.selectionDashArray);\n\n        ctx.closePath();\n        ctx.stroke();\n      }\n      else {\n        fabric.Object.prototype._setLineDash.call(this, ctx, this.selectionDashArray);\n        ctx.strokeRect(\n          groupSelector.ex + STROKE_OFFSET - ((left > 0) ? 0 : aleft),\n          groupSelector.ey + STROKE_OFFSET - ((top > 0) ? 0 : atop),\n          aleft,\n          atop\n        );\n      }\n    },\n\n    /**\n     * Method that determines what object we are clicking on\n     * the skipGroup parameter is for internal use, is needed for shift+click action\n     * 11/09/2018 TODO: would be cool if findTarget could discern between being a full target\n     * or the outside part of the corner.\n     * @param {Event} e mouse event\n     * @param {Boolean} skipGroup when true, activeGroup is skipped and only objects are traversed through\n     * @return {fabric.Object} the target found\n     */\n    findTarget: function (e, skipGroup) {\n      if (this.skipTargetFind) {\n        return;\n      }\n\n      var ignoreZoom = true,\n          pointer = this.getPointer(e, ignoreZoom),\n          activeObject = this._activeObject,\n          aObjects = this.getActiveObjects(),\n          activeTarget, activeTargetSubs;\n\n      // first check current group (if one exists)\n      // active group does not check sub targets like normal groups.\n      // if active group just exits.\n      this.targets = [];\n\n      if (aObjects.length > 1 && !skipGroup && activeObject === this._searchPossibleTargets([activeObject], pointer)) {\n        return activeObject;\n      }\n      // if we hit the corner of an activeObject, let's return that.\n      if (aObjects.length === 1 && activeObject._findTargetCorner(pointer)) {\n        return activeObject;\n      }\n      if (aObjects.length === 1 &&\n        activeObject === this._searchPossibleTargets([activeObject], pointer)) {\n        if (!this.preserveObjectStacking) {\n          return activeObject;\n        }\n        else {\n          activeTarget = activeObject;\n          activeTargetSubs = this.targets;\n          this.targets = [];\n        }\n      }\n      var target = this._searchPossibleTargets(this._objects, pointer);\n      if (e[this.altSelectionKey] && target && activeTarget && target !== activeTarget) {\n        target = activeTarget;\n        this.targets = activeTargetSubs;\n      }\n      return target;\n    },\n\n    /**\n     * Checks point is inside the object.\n     * @param {Object} [pointer] x,y object of point coordinates we want to check.\n     * @param {fabric.Object} obj Object to test against\n     * @param {Object} [globalPointer] x,y object of point coordinates relative to canvas used to search per pixel target.\n     * @return {Boolean} true if point is contained within an area of given object\n     * @private\n     */\n    _checkTarget: function(pointer, obj, globalPointer) {\n      if (obj &&\n          obj.visible &&\n          obj.evented &&\n          this.containsPoint(null, obj, pointer)){\n        if ((this.perPixelTargetFind || obj.perPixelTargetFind) && !obj.isEditing) {\n          var isTransparent = this.isTargetTransparent(obj, globalPointer.x, globalPointer.y);\n          if (!isTransparent) {\n            return true;\n          }\n        }\n        else {\n          return true;\n        }\n      }\n    },\n\n    /**\n     * Function used to search inside objects an object that contains pointer in bounding box or that contains pointerOnCanvas when painted\n     * @param {Array} [objects] objects array to look into\n     * @param {Object} [pointer] x,y object of point coordinates we want to check.\n     * @return {fabric.Object} object that contains pointer\n     * @private\n     */\n    _searchPossibleTargets: function(objects, pointer) {\n      // Cache all targets where their bounding box contains point.\n      var target, i = objects.length, subTarget;\n      // Do not check for currently grouped objects, since we check the parent group itself.\n      // until we call this function specifically to search inside the activeGroup\n      while (i--) {\n        var objToCheck = objects[i];\n        var pointerToUse = objToCheck.group && objToCheck.group.type !== 'activeSelection' ?\n          this._normalizePointer(objToCheck.group, pointer) : pointer;\n        if (this._checkTarget(pointerToUse, objToCheck, pointer)) {\n          target = objects[i];\n          if (target.subTargetCheck && target instanceof fabric.Group) {\n            subTarget = this._searchPossibleTargets(target._objects, pointer);\n            subTarget && this.targets.push(subTarget);\n          }\n          break;\n        }\n      }\n      return target;\n    },\n\n    /**\n     * Returns pointer coordinates without the effect of the viewport\n     * @param {Object} pointer with \"x\" and \"y\" number values\n     * @return {Object} object with \"x\" and \"y\" number values\n     */\n    restorePointerVpt: function(pointer) {\n      return fabric.util.transformPoint(\n        pointer,\n        fabric.util.invertTransform(this.viewportTransform)\n      );\n    },\n\n    /**\n     * Returns pointer coordinates relative to canvas.\n     * Can return coordinates with or without viewportTransform.\n     * ignoreZoom false gives back coordinates that represent\n     * the point clicked on canvas element.\n     * ignoreZoom true gives back coordinates after being processed\n     * by the viewportTransform ( sort of coordinates of what is displayed\n     * on the canvas where you are clicking.\n     * ignoreZoom true = HTMLElement coordinates relative to top,left\n     * ignoreZoom false, default = fabric space coordinates, the same used for shape position\n     * To interact with your shapes top and left you want to use ignoreZoom true\n     * most of the time, while ignoreZoom false will give you coordinates\n     * compatible with the object.oCoords system.\n     * of the time.\n     * @param {Event} e\n     * @param {Boolean} ignoreZoom\n     * @return {Object} object with \"x\" and \"y\" number values\n     */\n    getPointer: function (e, ignoreZoom) {\n      // return cached values if we are in the event processing chain\n      if (this._absolutePointer && !ignoreZoom) {\n        return this._absolutePointer;\n      }\n      if (this._pointer && ignoreZoom) {\n        return this._pointer;\n      }\n\n      var pointer = getPointer(e),\n          upperCanvasEl = this.upperCanvasEl,\n          bounds = upperCanvasEl.getBoundingClientRect(),\n          boundsWidth = bounds.width || 0,\n          boundsHeight = bounds.height || 0,\n          cssScale;\n\n      if (!boundsWidth || !boundsHeight ) {\n        if ('top' in bounds && 'bottom' in bounds) {\n          boundsHeight = Math.abs( bounds.top - bounds.bottom );\n        }\n        if ('right' in bounds && 'left' in bounds) {\n          boundsWidth = Math.abs( bounds.right - bounds.left );\n        }\n      }\n\n      this.calcOffset();\n      pointer.x = pointer.x - this._offset.left;\n      pointer.y = pointer.y - this._offset.top;\n      if (!ignoreZoom) {\n        pointer = this.restorePointerVpt(pointer);\n      }\n\n      var retinaScaling = this.getRetinaScaling();\n      if (retinaScaling !== 1) {\n        pointer.x /= retinaScaling;\n        pointer.y /= retinaScaling;\n      }\n\n      if (boundsWidth === 0 || boundsHeight === 0) {\n        // If bounds are not available (i.e. not visible), do not apply scale.\n        cssScale = { width: 1, height: 1 };\n      }\n      else {\n        cssScale = {\n          width: upperCanvasEl.width / boundsWidth,\n          height: upperCanvasEl.height / boundsHeight\n        };\n      }\n\n      return {\n        x: pointer.x * cssScale.width,\n        y: pointer.y * cssScale.height\n      };\n    },\n\n    /**\n     * @private\n     * @throws {CANVAS_INIT_ERROR} If canvas can not be initialized\n     */\n    _createUpperCanvas: function () {\n      var lowerCanvasClass = this.lowerCanvasEl.className.replace(/\\s*lower-canvas\\s*/, ''),\n          lowerCanvasEl = this.lowerCanvasEl, upperCanvasEl = this.upperCanvasEl;\n\n      // there is no need to create a new upperCanvas element if we have already one.\n      if (upperCanvasEl) {\n        upperCanvasEl.className = '';\n      }\n      else {\n        upperCanvasEl = this._createCanvasElement();\n        this.upperCanvasEl = upperCanvasEl;\n      }\n      fabric.util.addClass(upperCanvasEl, 'upper-canvas ' + lowerCanvasClass);\n\n      this.wrapperEl.appendChild(upperCanvasEl);\n\n      this._copyCanvasStyle(lowerCanvasEl, upperCanvasEl);\n      this._applyCanvasStyle(upperCanvasEl);\n      this.contextTop = upperCanvasEl.getContext('2d');\n    },\n\n    /**\n     * @private\n     */\n    _createCacheCanvas: function () {\n      this.cacheCanvasEl = this._createCanvasElement();\n      this.cacheCanvasEl.setAttribute('width', this.width);\n      this.cacheCanvasEl.setAttribute('height', this.height);\n      this.contextCache = this.cacheCanvasEl.getContext('2d');\n    },\n\n    /**\n     * @private\n     */\n    _initWrapperElement: function () {\n      this.wrapperEl = fabric.util.wrapElement(this.lowerCanvasEl, 'div', {\n        'class': this.containerClass\n      });\n      fabric.util.setStyle(this.wrapperEl, {\n        width: this.width + 'px',\n        height: this.height + 'px',\n        position: 'relative'\n      });\n      fabric.util.makeElementUnselectable(this.wrapperEl);\n    },\n\n    /**\n     * @private\n     * @param {HTMLElement} element canvas element to apply styles on\n     */\n    _applyCanvasStyle: function (element) {\n      var width = this.width || element.width,\n          height = this.height || element.height;\n\n      fabric.util.setStyle(element, {\n        position: 'absolute',\n        width: width + 'px',\n        height: height + 'px',\n        left: 0,\n        top: 0,\n        'touch-action': this.allowTouchScrolling ? 'manipulation' : 'none',\n        '-ms-touch-action': this.allowTouchScrolling ? 'manipulation' : 'none'\n      });\n      element.width = width;\n      element.height = height;\n      fabric.util.makeElementUnselectable(element);\n    },\n\n    /**\n     * Copy the entire inline style from one element (fromEl) to another (toEl)\n     * @private\n     * @param {Element} fromEl Element style is copied from\n     * @param {Element} toEl Element copied style is applied to\n     */\n    _copyCanvasStyle: function (fromEl, toEl) {\n      toEl.style.cssText = fromEl.style.cssText;\n    },\n\n    /**\n     * Returns context of canvas where object selection is drawn\n     * @return {CanvasRenderingContext2D}\n     */\n    getSelectionContext: function() {\n      return this.contextTop;\n    },\n\n    /**\n     * Returns &lt;canvas> element on which object selection is drawn\n     * @return {HTMLCanvasElement}\n     */\n    getSelectionElement: function () {\n      return this.upperCanvasEl;\n    },\n\n    /**\n     * Returns currently active object\n     * @return {fabric.Object} active object\n     */\n    getActiveObject: function () {\n      return this._activeObject;\n    },\n\n    /**\n     * Returns an array with the current selected objects\n     * @return {fabric.Object} active object\n     */\n    getActiveObjects: function () {\n      var active = this._activeObject;\n      if (active) {\n        if (active.type === 'activeSelection' && active._objects) {\n          return active._objects.slice(0);\n        }\n        else {\n          return [active];\n        }\n      }\n      return [];\n    },\n\n    /**\n     * @private\n     * @param {fabric.Object} obj Object that was removed\n     */\n    _onObjectRemoved: function(obj) {\n      // removing active object should fire \"selection:cleared\" events\n      if (obj === this._activeObject) {\n        this.fire('before:selection:cleared', { target: obj });\n        this._discardActiveObject();\n        this.fire('selection:cleared', { target: obj });\n        obj.fire('deselected');\n      }\n      if (obj === this._hoveredTarget){\n        this._hoveredTarget = null;\n        this._hoveredTargets = [];\n      }\n      this.callSuper('_onObjectRemoved', obj);\n    },\n\n    /**\n     * @private\n     * Compares the old activeObject with the current one and fires correct events\n     * @param {fabric.Object} obj old activeObject\n     */\n    _fireSelectionEvents: function(oldObjects, e) {\n      var somethingChanged = false, objects = this.getActiveObjects(),\n          added = [], removed = [], opt = { e: e };\n      oldObjects.forEach(function(oldObject) {\n        if (objects.indexOf(oldObject) === -1) {\n          somethingChanged = true;\n          oldObject.fire('deselected', opt);\n          removed.push(oldObject);\n        }\n      });\n      objects.forEach(function(object) {\n        if (oldObjects.indexOf(object) === -1) {\n          somethingChanged = true;\n          object.fire('selected', opt);\n          added.push(object);\n        }\n      });\n      if (oldObjects.length > 0 && objects.length > 0) {\n        opt.selected = added;\n        opt.deselected = removed;\n        // added for backward compatibility\n        opt.updated = added[0] || removed[0];\n        opt.target = this._activeObject;\n        somethingChanged && this.fire('selection:updated', opt);\n      }\n      else if (objects.length > 0) {\n        // deprecated event\n        if (objects.length === 1) {\n          opt.target = added[0];\n          this.fire('object:selected', opt);\n        }\n        opt.selected = added;\n        // added for backward compatibility\n        opt.target = this._activeObject;\n        this.fire('selection:created', opt);\n      }\n      else if (oldObjects.length > 0) {\n        opt.deselected = removed;\n        this.fire('selection:cleared', opt);\n      }\n    },\n\n    /**\n     * Sets given object as the only active object on canvas\n     * @param {fabric.Object} object Object to set as an active one\n     * @param {Event} [e] Event (passed along when firing \"object:selected\")\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    setActiveObject: function (object, e) {\n      var currentActives = this.getActiveObjects();\n      this._setActiveObject(object, e);\n      this._fireSelectionEvents(currentActives, e);\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {Object} object to set as active\n     * @param {Event} [e] Event (passed along when firing \"object:selected\")\n     * @return {Boolean} true if the selection happened\n     */\n    _setActiveObject: function(object, e) {\n      if (this._activeObject === object) {\n        return false;\n      }\n      if (!this._discardActiveObject(e, object)) {\n        return false;\n      }\n      if (object.onSelect({ e: e })) {\n        return false;\n      }\n      this._activeObject = object;\n      return true;\n    },\n\n    /**\n     * @private\n     */\n    _discardActiveObject: function(e, object) {\n      var obj = this._activeObject;\n      if (obj) {\n        // onDeselect return TRUE to cancel selection;\n        if (obj.onDeselect({ e: e, object: object })) {\n          return false;\n        }\n        this._activeObject = null;\n      }\n      return true;\n    },\n\n    /**\n     * Discards currently active object and fire events. If the function is called by fabric\n     * as a consequence of a mouse event, the event is passed as a parameter and\n     * sent to the fire function for the custom events. When used as a method the\n     * e param does not have any application.\n     * @param {event} e\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    discardActiveObject: function (e) {\n      var currentActives = this.getActiveObjects(), activeObject = this.getActiveObject();\n      if (currentActives.length) {\n        this.fire('before:selection:cleared', { target: activeObject, e: e });\n      }\n      this._discardActiveObject(e);\n      this._fireSelectionEvents(currentActives, e);\n      return this;\n    },\n\n    /**\n     * Clears a canvas element and removes all event listeners\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    dispose: function () {\n      var wrapper = this.wrapperEl;\n      this.removeListeners();\n      wrapper.removeChild(this.upperCanvasEl);\n      wrapper.removeChild(this.lowerCanvasEl);\n      this.contextCache = null;\n      this.contextTop = null;\n      ['upperCanvasEl', 'cacheCanvasEl'].forEach((function(element) {\n        fabric.util.cleanUpJsdomNode(this[element]);\n        this[element] = undefined;\n      }).bind(this));\n      if (wrapper.parentNode) {\n        wrapper.parentNode.replaceChild(this.lowerCanvasEl, this.wrapperEl);\n      }\n      delete this.wrapperEl;\n      fabric.StaticCanvas.prototype.dispose.call(this);\n      return this;\n    },\n\n    /**\n     * Clears all contexts (background, main, top) of an instance\n     * @return {fabric.Canvas} thisArg\n     * @chainable\n     */\n    clear: function () {\n      // this.discardActiveGroup();\n      this.discardActiveObject();\n      this.clearContext(this.contextTop);\n      return this.callSuper('clear');\n    },\n\n    /**\n     * Draws objects' controls (borders/controls)\n     * @param {CanvasRenderingContext2D} ctx Context to render controls on\n     */\n    drawControls: function(ctx) {\n      var activeObject = this._activeObject;\n\n      if (activeObject) {\n        activeObject._renderControls(ctx);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _toObject: function(instance, methodName, propertiesToInclude) {\n      //If the object is part of the current selection group, it should\n      //be transformed appropriately\n      //i.e. it should be serialised as it would appear if the selection group\n      //were to be destroyed.\n      var originalProperties = this._realizeGroupTransformOnObject(instance),\n          object = this.callSuper('_toObject', instance, methodName, propertiesToInclude);\n      //Undo the damage we did by changing all of its properties\n      this._unwindGroupTransformOnObject(instance, originalProperties);\n      return object;\n    },\n\n    /**\n     * Realises an object's group transformation on it\n     * @private\n     * @param {fabric.Object} [instance] the object to transform (gets mutated)\n     * @returns the original values of instance which were changed\n     */\n    _realizeGroupTransformOnObject: function(instance) {\n      if (instance.group && instance.group.type === 'activeSelection' && this._activeObject === instance.group) {\n        var layoutProps = ['angle', 'flipX', 'flipY', 'left', 'scaleX', 'scaleY', 'skewX', 'skewY', 'top'];\n        //Copy all the positionally relevant properties across now\n        var originalValues = {};\n        layoutProps.forEach(function(prop) {\n          originalValues[prop] = instance[prop];\n        });\n        this._activeObject.realizeTransform(instance);\n        return originalValues;\n      }\n      else {\n        return null;\n      }\n    },\n\n    /**\n     * Restores the changed properties of instance\n     * @private\n     * @param {fabric.Object} [instance] the object to un-transform (gets mutated)\n     * @param {Object} [originalValues] the original values of instance, as returned by _realizeGroupTransformOnObject\n     */\n    _unwindGroupTransformOnObject: function(instance, originalValues) {\n      if (originalValues) {\n        instance.set(originalValues);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setSVGObject: function(markup, instance, reviver) {\n      //If the object is in a selection group, simulate what would happen to that\n      //object when the group is deselected\n      var originalProperties = this._realizeGroupTransformOnObject(instance);\n      this.callSuper('_setSVGObject', markup, instance, reviver);\n      this._unwindGroupTransformOnObject(instance, originalProperties);\n    },\n\n    setViewportTransform: function (vpt) {\n      if (this.renderOnAddRemove && this._activeObject && this._activeObject.isEditing) {\n        this._activeObject.clearContextTop();\n      }\n      fabric.StaticCanvas.prototype.setViewportTransform.call(this, vpt);\n    }\n  });\n\n  // copying static properties manually to work around Opera's bug,\n  // where \"prototype\" property is enumerable and overrides existing prototype\n  for (var prop in fabric.StaticCanvas) {\n    if (prop !== 'prototype') {\n      fabric.Canvas[prop] = fabric.StaticCanvas[prop];\n    }\n  }\n})();\n\n\n(function() {\n\n  var cursorOffset = {\n        mt: 0, // n\n        tr: 1, // ne\n        mr: 2, // e\n        br: 3, // se\n        mb: 4, // s\n        bl: 5, // sw\n        ml: 6, // w\n        tl: 7 // nw\n      },\n      addListener = fabric.util.addListener,\n      removeListener = fabric.util.removeListener,\n      RIGHT_CLICK = 3, MIDDLE_CLICK = 2, LEFT_CLICK = 1,\n      addEventOptions = { passive: false };\n\n  function checkClick(e, value) {\n    return e.button && (e.button === value - 1);\n  }\n\n  fabric.util.object.extend(fabric.Canvas.prototype, /** @lends fabric.Canvas.prototype */ {\n\n    /**\n     * Map of cursor style values for each of the object controls\n     * @private\n     */\n    cursorMap: [\n      'n-resize',\n      'ne-resize',\n      'e-resize',\n      'se-resize',\n      's-resize',\n      'sw-resize',\n      'w-resize',\n      'nw-resize'\n    ],\n\n    /**\n     * Contains the id of the touch event that owns the fabric transform\n     * @type Number\n     * @private\n     */\n    mainTouchId: null,\n\n    /**\n     * Adds mouse listeners to canvas\n     * @private\n     */\n    _initEventListeners: function () {\n      // in case we initialized the class twice. This should not happen normally\n      // but in some kind of applications where the canvas element may be changed\n      // this is a workaround to having double listeners.\n      this.removeListeners();\n      this._bindEvents();\n      this.addOrRemove(addListener, 'add');\n    },\n\n    /**\n     * return an event prefix pointer or mouse.\n     * @private\n     */\n    _getEventPrefix: function () {\n      return this.enablePointerEvents ? 'pointer' : 'mouse';\n    },\n\n    addOrRemove: function(functor, eventjsFunctor) {\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      functor(fabric.window, 'resize', this._onResize);\n      functor(canvasElement, eventTypePrefix + 'down', this._onMouseDown);\n      functor(canvasElement, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      functor(canvasElement, eventTypePrefix + 'out', this._onMouseOut);\n      functor(canvasElement, eventTypePrefix + 'enter', this._onMouseEnter);\n      functor(canvasElement, 'wheel', this._onMouseWheel);\n      functor(canvasElement, 'contextmenu', this._onContextMenu);\n      functor(canvasElement, 'dblclick', this._onDoubleClick);\n      functor(canvasElement, 'dragover', this._onDragOver);\n      functor(canvasElement, 'dragenter', this._onDragEnter);\n      functor(canvasElement, 'dragleave', this._onDragLeave);\n      functor(canvasElement, 'drop', this._onDrop);\n      if (!this.enablePointerEvents) {\n        functor(canvasElement, 'touchstart', this._onTouchStart, addEventOptions);\n      }\n      if (typeof eventjs !== 'undefined' && eventjsFunctor in eventjs) {\n        eventjs[eventjsFunctor](canvasElement, 'gesture', this._onGesture);\n        eventjs[eventjsFunctor](canvasElement, 'drag', this._onDrag);\n        eventjs[eventjsFunctor](canvasElement, 'orientation', this._onOrientationChange);\n        eventjs[eventjsFunctor](canvasElement, 'shake', this._onShake);\n        eventjs[eventjsFunctor](canvasElement, 'longpress', this._onLongPress);\n      }\n    },\n\n    /**\n     * Removes all event listeners\n     */\n    removeListeners: function() {\n      this.addOrRemove(removeListener, 'remove');\n      // if you dispose on a mouseDown, before mouse up, you need to clean document to...\n      var eventTypePrefix = this._getEventPrefix();\n      removeListener(fabric.document, eventTypePrefix + 'up', this._onMouseUp);\n      removeListener(fabric.document, 'touchend', this._onTouchEnd, addEventOptions);\n      removeListener(fabric.document, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      removeListener(fabric.document, 'touchmove', this._onMouseMove, addEventOptions);\n    },\n\n    /**\n     * @private\n     */\n    _bindEvents: function() {\n      if (this.eventsBound) {\n        // for any reason we pass here twice we do not want to bind events twice.\n        return;\n      }\n      this._onMouseDown = this._onMouseDown.bind(this);\n      this._onTouchStart = this._onTouchStart.bind(this);\n      this._onMouseMove = this._onMouseMove.bind(this);\n      this._onMouseUp = this._onMouseUp.bind(this);\n      this._onTouchEnd = this._onTouchEnd.bind(this);\n      this._onResize = this._onResize.bind(this);\n      this._onGesture = this._onGesture.bind(this);\n      this._onDrag = this._onDrag.bind(this);\n      this._onShake = this._onShake.bind(this);\n      this._onLongPress = this._onLongPress.bind(this);\n      this._onOrientationChange = this._onOrientationChange.bind(this);\n      this._onMouseWheel = this._onMouseWheel.bind(this);\n      this._onMouseOut = this._onMouseOut.bind(this);\n      this._onMouseEnter = this._onMouseEnter.bind(this);\n      this._onContextMenu = this._onContextMenu.bind(this);\n      this._onDoubleClick = this._onDoubleClick.bind(this);\n      this._onDragOver = this._onDragOver.bind(this);\n      this._onDragEnter = this._simpleEventHandler.bind(this, 'dragenter');\n      this._onDragLeave = this._simpleEventHandler.bind(this, 'dragleave');\n      this._onDrop = this._simpleEventHandler.bind(this, 'drop');\n      this.eventsBound = true;\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js gesture\n     * @param {Event} [self] Inner Event object\n     */\n    _onGesture: function(e, self) {\n      this.__onTransformGesture && this.__onTransformGesture(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js drag\n     * @param {Event} [self] Inner Event object\n     */\n    _onDrag: function(e, self) {\n      this.__onDrag && this.__onDrag(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on wheel event\n     */\n    _onMouseWheel: function(e) {\n      this.__onMouseWheel(e);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onMouseOut: function(e) {\n      var target = this._hoveredTarget;\n      this.fire('mouse:out', { target: target, e: e });\n      this._hoveredTarget = null;\n      target && target.fire('mouseout', { e: e });\n\n      var _this = this;\n      this._hoveredTargets.forEach(function(_target){\n        _this.fire('mouse:out', { target: target, e: e });\n        _target && target.fire('mouseout', { e: e });\n      });\n      this._hoveredTargets = [];\n\n      if (this._iTextInstances) {\n        this._iTextInstances.forEach(function(obj) {\n          if (obj.isEditing) {\n            obj.hiddenTextarea.focus();\n          }\n        });\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mouseenter\n     */\n    _onMouseEnter: function(e) {\n      // This find target and consequent 'mouse:over' is used to\n      // clear old instances on hovered target.\n      // calling findTarget has the side effect of killing target.__corner.\n      // as a short term fix we are not firing this if we are currently transforming.\n      // as a long term fix we need to separate the action of finding a target with the\n      // side effects we added to it.\n      if (!this.currentTransform && !this.findTarget(e)) {\n        this.fire('mouse:over', { target: null, e: e });\n        this._hoveredTarget = null;\n        this._hoveredTargets = [];\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js orientation change\n     * @param {Event} [self] Inner Event object\n     */\n    _onOrientationChange: function(e, self) {\n      this.__onOrientationChange && this.__onOrientationChange(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js shake\n     * @param {Event} [self] Inner Event object\n     */\n    _onShake: function(e, self) {\n      this.__onShake && this.__onShake(e, self);\n    },\n\n    /**\n     * @private\n     * @param {Event} [e] Event object fired on Event.js shake\n     * @param {Event} [self] Inner Event object\n     */\n    _onLongPress: function(e, self) {\n      this.__onLongPress && this.__onLongPress(e, self);\n    },\n\n    /**\n     * prevent default to allow drop event to be fired\n     * @private\n     * @param {Event} [e] Event object fired on Event.js shake\n     */\n    _onDragOver: function(e) {\n      e.preventDefault();\n      var target = this._simpleEventHandler('dragover', e);\n      this._fireEnterLeaveEvents(target, e);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onContextMenu: function (e) {\n      if (this.stopContextMenu) {\n        e.stopPropagation();\n        e.preventDefault();\n      }\n      return false;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onDoubleClick: function (e) {\n      this._cacheTransformEventData(e);\n      this._handleEvent(e, 'dblclick');\n      this._resetTransformEventData(e);\n    },\n\n    /**\n     * Return a the id of an event.\n     * returns either the pointerId or the identifier or 0 for the mouse event\n     * @private\n     * @param {Event} evt Event object\n     */\n    getPointerId: function(evt) {\n      var changedTouches = evt.changedTouches;\n\n      if (changedTouches) {\n        return changedTouches[0] && changedTouches[0].identifier;\n      }\n\n      if (this.enablePointerEvents) {\n        return evt.pointerId;\n      }\n\n      return -1;\n    },\n\n    /**\n     * Determines if an event has the id of the event that is considered main\n     * @private\n     * @param {evt} event Event object\n     */\n    _isMainEvent: function(evt) {\n      if (evt.isPrimary === true) {\n        return true;\n      }\n      if (evt.isPrimary === false) {\n        return false;\n      }\n      if (evt.type === 'touchend' && evt.touches.length === 0) {\n        return true;\n      }\n      if (evt.changedTouches) {\n        return evt.changedTouches[0].identifier === this.mainTouchId;\n      }\n      return true;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onTouchStart: function(e) {\n      e.preventDefault();\n      if (this.mainTouchId === null) {\n        this.mainTouchId = this.getPointerId(e);\n      }\n      this.__onMouseDown(e);\n      this._resetTransformEventData();\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      addListener(fabric.document, 'touchend', this._onTouchEnd, addEventOptions);\n      addListener(fabric.document, 'touchmove', this._onMouseMove, addEventOptions);\n      // Unbind mousedown to prevent double triggers from touch devices\n      removeListener(canvasElement, eventTypePrefix + 'down', this._onMouseDown);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onMouseDown: function (e) {\n      this.__onMouseDown(e);\n      this._resetTransformEventData();\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      removeListener(canvasElement, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      addListener(fabric.document, eventTypePrefix + 'up', this._onMouseUp);\n      addListener(fabric.document, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onTouchEnd: function(e) {\n      if (e.touches.length > 0) {\n        // if there are still touches stop here\n        return;\n      }\n      this.__onMouseUp(e);\n      this._resetTransformEventData();\n      this.mainTouchId = null;\n      var eventTypePrefix = this._getEventPrefix();\n      removeListener(fabric.document, 'touchend', this._onTouchEnd, addEventOptions);\n      removeListener(fabric.document, 'touchmove', this._onMouseMove, addEventOptions);\n      var _this = this;\n      if (this._willAddMouseDown) {\n        clearTimeout(this._willAddMouseDown);\n      }\n      this._willAddMouseDown = setTimeout(function() {\n        // Wait 400ms before rebinding mousedown to prevent double triggers\n        // from touch devices\n        addListener(_this.upperCanvasEl, eventTypePrefix + 'down', _this._onMouseDown);\n        _this._willAddMouseDown = 0;\n      }, 400);\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mouseup\n     */\n    _onMouseUp: function (e) {\n      this.__onMouseUp(e);\n      this._resetTransformEventData();\n      var canvasElement = this.upperCanvasEl,\n          eventTypePrefix = this._getEventPrefix();\n      if (this._isMainEvent(e)) {\n        removeListener(fabric.document, eventTypePrefix + 'up', this._onMouseUp);\n        removeListener(fabric.document, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n        addListener(canvasElement, eventTypePrefix + 'move', this._onMouseMove, addEventOptions);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousemove\n     */\n    _onMouseMove: function (e) {\n      !this.allowTouchScrolling && e.preventDefault && e.preventDefault();\n      this.__onMouseMove(e);\n    },\n\n    /**\n     * @private\n     */\n    _onResize: function () {\n      this.calcOffset();\n    },\n\n    /**\n     * Decides whether the canvas should be redrawn in mouseup and mousedown events.\n     * @private\n     * @param {Object} target\n     */\n    _shouldRender: function(target) {\n      var activeObject = this._activeObject;\n\n      if (\n        !!activeObject !== !!target ||\n        (activeObject && target && (activeObject !== target))\n      ) {\n        // this covers: switch of target, from target to no target, selection of target\n        // multiSelection with key and mouse\n        return true;\n      }\n      else if (activeObject && activeObject.isEditing) {\n        // if we mouse up/down over a editing textbox a cursor change,\n        // there is no need to re render\n        return false;\n      }\n      return false;\n    },\n\n    /**\n     * Method that defines the actions when mouse is released on canvas.\n     * The method resets the currentTransform parameters, store the image corner\n     * position in the image object and render the canvas on top.\n     * @private\n     * @param {Event} e Event object fired on mouseup\n     */\n    __onMouseUp: function (e) {\n      var target, transform = this._currentTransform,\n          groupSelector = this._groupSelector, shouldRender = false,\n          isClick = (!groupSelector || (groupSelector.left === 0 && groupSelector.top === 0));\n      this._cacheTransformEventData(e);\n      target = this._target;\n      this._handleEvent(e, 'up:before');\n      // if right/middle click just fire events and return\n      // target undefined will make the _handleEvent search the target\n      if (checkClick(e, RIGHT_CLICK)) {\n        if (this.fireRightClick) {\n          this._handleEvent(e, 'up', RIGHT_CLICK, isClick);\n        }\n        return;\n      }\n\n      if (checkClick(e, MIDDLE_CLICK)) {\n        if (this.fireMiddleClick) {\n          this._handleEvent(e, 'up', MIDDLE_CLICK, isClick);\n        }\n        this._resetTransformEventData();\n        return;\n      }\n\n      if (this.isDrawingMode && this._isCurrentlyDrawing) {\n        this._onMouseUpInDrawingMode(e);\n        return;\n      }\n\n      if (!this._isMainEvent(e)) {\n        return;\n      }\n      if (transform) {\n        this._finalizeCurrentTransform(e);\n        shouldRender = transform.actionPerformed;\n      }\n\n      if (!isClick) {\n        this._maybeGroupObjects(e);\n        shouldRender || (shouldRender = this._shouldRender(target));\n      }\n      if (target) {\n        target.isMoving = false;\n      }\n      this._setCursorFromEvent(e, target);\n      this._handleEvent(e, 'up', LEFT_CLICK, isClick);\n      this._groupSelector = null;\n      this._currentTransform = null;\n      // reset the target information about which corner is selected\n      target && (target.__corner = 0);\n      if (shouldRender) {\n        this.requestRenderAll();\n      }\n      else if (!isClick) {\n        this.renderTop();\n      }\n    },\n\n    /**\n     * @private\n     * Handle event firing for target and subtargets\n     * @param {Event} e event from mouse\n     * @param {String} eventType event to fire (up, down or move)\n     * @return {Fabric.Object} target return the the target found, for internal reasons.\n     */\n    _simpleEventHandler: function(eventType, e) {\n      var target = this.findTarget(e),\n          targets = this.targets,\n          options = {\n            e: e,\n            target: target,\n            subTargets: targets,\n          };\n      this.fire(eventType, options);\n      target && target.fire(eventType, options);\n      if (!targets) {\n        return target;\n      }\n      for (var i = 0; i < targets.length; i++) {\n        targets[i].fire(eventType, options);\n      }\n      return target;\n    },\n\n    /**\n     * @private\n     * Handle event firing for target and subtargets\n     * @param {Event} e event from mouse\n     * @param {String} eventType event to fire (up, down or move)\n     * @param {fabric.Object} targetObj receiving event\n     * @param {Number} [button] button used in the event 1 = left, 2 = middle, 3 = right\n     * @param {Boolean} isClick for left button only, indicates that the mouse up happened without move.\n     */\n    _handleEvent: function(e, eventType, button, isClick) {\n      var target = this._target,\n          targets = this.targets || [],\n          options = {\n            e: e,\n            target: target,\n            subTargets: targets,\n            button: button || LEFT_CLICK,\n            isClick: isClick || false,\n            pointer: this._pointer,\n            absolutePointer: this._absolutePointer,\n            transform: this._currentTransform\n          };\n      this.fire('mouse:' + eventType, options);\n      target && target.fire('mouse' + eventType, options);\n      for (var i = 0; i < targets.length; i++) {\n        targets[i].fire('mouse' + eventType, options);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e send the mouse event that generate the finalize down, so it can be used in the event\n     */\n    _finalizeCurrentTransform: function(e) {\n\n      var transform = this._currentTransform,\n          target = transform.target,\n          eventName,\n          options = {\n            e: e,\n            target: target,\n            transform: transform,\n          };\n\n      if (target._scaling) {\n        target._scaling = false;\n      }\n\n      target.setCoords();\n\n      if (transform.actionPerformed || (this.stateful && target.hasStateChanged())) {\n        if (transform.actionPerformed) {\n          eventName = this._addEventOptions(options, transform);\n          this._fire(eventName, options);\n        }\n        this._fire('modified', options);\n      }\n    },\n\n    /**\n     * Mutate option object in order to add by property and give back the event name.\n     * @private\n     * @param {Object} options to mutate\n     * @param {Object} transform to inspect action from\n     */\n    _addEventOptions: function(options, transform) {\n      // we can probably add more details at low cost\n      // scale change, rotation changes, translation changes\n      var eventName, by;\n      switch (transform.action) {\n        case 'scaleX':\n          eventName = 'scaled';\n          by = 'x';\n          break;\n        case 'scaleY':\n          eventName = 'scaled';\n          by = 'y';\n          break;\n        case 'skewX':\n          eventName = 'skewed';\n          by = 'x';\n          break;\n        case 'skewY':\n          eventName = 'skewed';\n          by = 'y';\n          break;\n        case 'scale':\n          eventName = 'scaled';\n          by = 'equally';\n          break;\n        case 'rotate':\n          eventName = 'rotated';\n          break;\n        case 'drag':\n          eventName = 'moved';\n          break;\n      }\n      options.by = by;\n      return eventName;\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    _onMouseDownInDrawingMode: function(e) {\n      this._isCurrentlyDrawing = true;\n      if (this.getActiveObject()) {\n        this.discardActiveObject(e).requestRenderAll();\n      }\n      if (this.clipTo) {\n        fabric.util.clipContext(this, this.contextTop);\n      }\n      var pointer = this.getPointer(e);\n      this.freeDrawingBrush.onMouseDown(pointer, { e: e, pointer: pointer });\n      this._handleEvent(e, 'down');\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mousemove\n     */\n    _onMouseMoveInDrawingMode: function(e) {\n      if (this._isCurrentlyDrawing) {\n        var pointer = this.getPointer(e);\n        this.freeDrawingBrush.onMouseMove(pointer, { e: e, pointer: pointer });\n      }\n      this.setCursor(this.freeDrawingCursor);\n      this._handleEvent(e, 'move');\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object fired on mouseup\n     */\n    _onMouseUpInDrawingMode: function(e) {\n      if (this.clipTo) {\n        this.contextTop.restore();\n      }\n      var pointer = this.getPointer(e);\n      this._isCurrentlyDrawing = this.freeDrawingBrush.onMouseUp({ e: e, pointer: pointer });\n      this._handleEvent(e, 'up');\n    },\n\n    /**\n     * Method that defines the actions when mouse is clicked on canvas.\n     * The method inits the currentTransform parameters and renders all the\n     * canvas so the current image can be placed on the top canvas and the rest\n     * in on the container one.\n     * @private\n     * @param {Event} e Event object fired on mousedown\n     */\n    __onMouseDown: function (e) {\n      this._cacheTransformEventData(e);\n      this._handleEvent(e, 'down:before');\n      var target = this._target;\n      // if right click just fire events\n      if (checkClick(e, RIGHT_CLICK)) {\n        if (this.fireRightClick) {\n          this._handleEvent(e, 'down', RIGHT_CLICK);\n        }\n        return;\n      }\n\n      if (checkClick(e, MIDDLE_CLICK)) {\n        if (this.fireMiddleClick) {\n          this._handleEvent(e, 'down', MIDDLE_CLICK);\n        }\n        return;\n      }\n\n      if (this.isDrawingMode) {\n        this._onMouseDownInDrawingMode(e);\n        return;\n      }\n\n      if (!this._isMainEvent(e)) {\n        return;\n      }\n\n      // ignore if some object is being transformed at this moment\n      if (this._currentTransform) {\n        return;\n      }\n\n      var pointer = this._pointer;\n      // save pointer for check in __onMouseUp event\n      this._previousPointer = pointer;\n      var shouldRender = this._shouldRender(target),\n          shouldGroup = this._shouldGroup(e, target);\n      if (this._shouldClearSelection(e, target)) {\n        this.discardActiveObject(e);\n      }\n      else if (shouldGroup) {\n        this._handleGrouping(e, target);\n        target = this._activeObject;\n      }\n\n      if (this.selection && (!target ||\n        (!target.selectable && !target.isEditing && target !== this._activeObject))) {\n        this._groupSelector = {\n          ex: pointer.x,\n          ey: pointer.y,\n          top: 0,\n          left: 0\n        };\n      }\n\n      if (target) {\n        var alreadySelected = target === this._activeObject;\n        if (target.selectable) {\n          this.setActiveObject(target, e);\n        }\n        if (target === this._activeObject && (target.__corner || !shouldGroup)) {\n          this._setupCurrentTransform(e, target, alreadySelected);\n        }\n      }\n      this._handleEvent(e, 'down');\n      // we must renderAll so that we update the visuals\n      (shouldRender || shouldGroup) && this.requestRenderAll();\n    },\n\n    /**\n     * reset cache form common information needed during event processing\n     * @private\n     */\n    _resetTransformEventData: function() {\n      this._target = null;\n      this._pointer = null;\n      this._absolutePointer = null;\n    },\n\n    /**\n     * Cache common information needed during event processing\n     * @private\n     * @param {Event} e Event object fired on event\n     */\n    _cacheTransformEventData: function(e) {\n      // reset in order to avoid stale caching\n      this._resetTransformEventData();\n      this._pointer = this.getPointer(e, true);\n      this._absolutePointer = this.restorePointerVpt(this._pointer);\n      this._target = this._currentTransform ? this._currentTransform.target : this.findTarget(e) || null;\n    },\n\n    /**\n     * @private\n     */\n    _beforeTransform: function(e) {\n      var t = this._currentTransform;\n      this.stateful && t.target.saveState();\n      this.fire('before:transform', {\n        e: e,\n        transform: t,\n      });\n      // determine if it's a drag or rotate case\n      if (t.corner) {\n        this.onBeforeScaleRotate(t.target);\n      }\n    },\n\n    /**\n     * Method that defines the actions when mouse is hovering the canvas.\n     * The currentTransform parameter will define whether the user is rotating/scaling/translating\n     * an image or neither of them (only hovering). A group selection is also possible and would cancel\n     * all any other type of action.\n     * In case of an image transformation only the top canvas will be rendered.\n     * @private\n     * @param {Event} e Event object fired on mousemove\n     */\n    __onMouseMove: function (e) {\n      this._handleEvent(e, 'move:before');\n      this._cacheTransformEventData(e);\n      var target, pointer;\n\n      if (this.isDrawingMode) {\n        this._onMouseMoveInDrawingMode(e);\n        return;\n      }\n\n      if (!this._isMainEvent(e)) {\n        return;\n      }\n\n      var groupSelector = this._groupSelector;\n\n      // We initially clicked in an empty area, so we draw a box for multiple selection\n      if (groupSelector) {\n        pointer = this._pointer;\n\n        groupSelector.left = pointer.x - groupSelector.ex;\n        groupSelector.top = pointer.y - groupSelector.ey;\n\n        this.renderTop();\n      }\n      else if (!this._currentTransform) {\n        target = this.findTarget(e) || null;\n        this._setCursorFromEvent(e, target);\n        this._fireOverOutEvents(target, e);\n      }\n      else {\n        this._transformObject(e);\n      }\n      this._handleEvent(e, 'move');\n      this._resetTransformEventData();\n    },\n\n    /**\n     * Manage the mouseout, mouseover events for the fabric object on the canvas\n     * @param {Fabric.Object} target the target where the target from the mousemove event\n     * @param {Event} e Event object fired on mousemove\n     * @private\n     */\n    _fireOverOutEvents: function(target, e) {\n      var _hoveredTarget = this._hoveredTarget,\n          _hoveredTargets = this._hoveredTargets, targets = this.targets,\n          length = Math.max(_hoveredTargets.length, targets.length);\n\n      this.fireSyntheticInOutEvents(target, e, {\n        oldTarget: _hoveredTarget,\n        evtOut: 'mouseout',\n        canvasEvtOut: 'mouse:out',\n        evtIn: 'mouseover',\n        canvasEvtIn: 'mouse:over',\n      });\n      for (var i = 0; i < length; i++){\n        this.fireSyntheticInOutEvents(targets[i], e, {\n          oldTarget: _hoveredTargets[i],\n          evtOut: 'mouseout',\n          evtIn: 'mouseover',\n        });\n      }\n      this._hoveredTarget = target;\n      this._hoveredTargets = this.targets.concat();\n    },\n\n    /**\n     * Manage the dragEnter, dragLeave events for the fabric objects on the canvas\n     * @param {Fabric.Object} target the target where the target from the onDrag event\n     * @param {Event} e Event object fired on ondrag\n     * @private\n     */\n    _fireEnterLeaveEvents: function(target, e) {\n      var _draggedoverTarget = this._draggedoverTarget,\n          _hoveredTargets = this._hoveredTargets, targets = this.targets,\n          length = Math.max(_hoveredTargets.length, targets.length);\n\n      this.fireSyntheticInOutEvents(target, e, {\n        oldTarget: _draggedoverTarget,\n        evtOut: 'dragleave',\n        evtIn: 'dragenter',\n      });\n      for (var i = 0; i < length; i++) {\n        this.fireSyntheticInOutEvents(targets[i], e, {\n          oldTarget: _hoveredTargets[i],\n          evtOut: 'dragleave',\n          evtIn: 'dragenter',\n        });\n      }\n      this._draggedoverTarget = target;\n    },\n\n    /**\n     * Manage the synthetic in/out events for the fabric objects on the canvas\n     * @param {Fabric.Object} target the target where the target from the supported events\n     * @param {Event} e Event object fired\n     * @param {Object} config configuration for the function to work\n     * @param {String} config.targetName property on the canvas where the old target is stored\n     * @param {String} [config.canvasEvtOut] name of the event to fire at canvas level for out\n     * @param {String} config.evtOut name of the event to fire for out\n     * @param {String} [config.canvasEvtIn] name of the event to fire at canvas level for in\n     * @param {String} config.evtIn name of the event to fire for in\n     * @private\n     */\n    fireSyntheticInOutEvents: function(target, e, config) {\n      var inOpt, outOpt, oldTarget = config.oldTarget, outFires, inFires,\n          targetChanged = oldTarget !== target, canvasEvtIn = config.canvasEvtIn, canvasEvtOut = config.canvasEvtOut;\n      if (targetChanged) {\n        inOpt = { e: e, target: target, previousTarget: oldTarget };\n        outOpt = { e: e, target: oldTarget, nextTarget: target };\n      }\n      inFires = target && targetChanged;\n      outFires = oldTarget && targetChanged;\n      if (outFires) {\n        canvasEvtOut && this.fire(canvasEvtOut, outOpt);\n        oldTarget.fire(config.evtOut, outOpt);\n      }\n      if (inFires) {\n        canvasEvtIn && this.fire(canvasEvtIn, inOpt);\n        target.fire(config.evtIn, inOpt);\n      }\n    },\n\n    /**\n     * Method that defines actions when an Event Mouse Wheel\n     * @param {Event} e Event object fired on mouseup\n     */\n    __onMouseWheel: function(e) {\n      this._cacheTransformEventData(e);\n      this._handleEvent(e, 'wheel');\n      this._resetTransformEventData();\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event fired on mousemove\n     */\n    _transformObject: function(e) {\n      var pointer = this.getPointer(e),\n          transform = this._currentTransform;\n\n      transform.reset = false;\n      transform.target.isMoving = true;\n      transform.shiftKey = e.shiftKey;\n      transform.altKey = e[this.centeredKey];\n\n      this._beforeScaleTransform(e, transform);\n      this._performTransformAction(e, transform, pointer);\n\n      transform.actionPerformed && this.requestRenderAll();\n    },\n\n    /**\n     * @private\n     */\n    _performTransformAction: function(e, transform, pointer) {\n      var x = pointer.x,\n          y = pointer.y,\n          action = transform.action,\n          actionPerformed = false,\n          options = {\n            target: transform.target,\n            e: e,\n            transform: transform,\n            pointer: pointer\n          };\n\n      if (action === 'rotate') {\n        (actionPerformed = this._rotateObject(x, y)) && this._fire('rotating', options);\n      }\n      else if (action === 'scale') {\n        (actionPerformed = this._onScale(e, transform, x, y)) && this._fire('scaling', options);\n      }\n      else if (action === 'scaleX') {\n        (actionPerformed = this._scaleObject(x, y, 'x')) && this._fire('scaling', options);\n      }\n      else if (action === 'scaleY') {\n        (actionPerformed = this._scaleObject(x, y, 'y')) && this._fire('scaling', options);\n      }\n      else if (action === 'skewX') {\n        (actionPerformed = this._skewObject(x, y, 'x')) && this._fire('skewing', options);\n      }\n      else if (action === 'skewY') {\n        (actionPerformed = this._skewObject(x, y, 'y')) && this._fire('skewing', options);\n      }\n      else {\n        actionPerformed = this._translateObject(x, y);\n        if (actionPerformed) {\n          this._fire('moving', options);\n          this.setCursor(options.target.moveCursor || this.moveCursor);\n        }\n      }\n      transform.actionPerformed = transform.actionPerformed || actionPerformed;\n    },\n\n    /**\n     * @private\n     */\n    _fire: function(eventName, options) {\n      this.fire('object:' + eventName, options);\n      options.target.fire(eventName, options);\n    },\n\n    /**\n     * @private\n     */\n    _beforeScaleTransform: function(e, transform) {\n      if (transform.action === 'scale' || transform.action === 'scaleX' || transform.action === 'scaleY') {\n        var centerTransform = this._shouldCenterTransform(transform.target);\n\n        // Switch from a normal resize to center-based\n        if ((centerTransform && (transform.originX !== 'center' || transform.originY !== 'center')) ||\n           // Switch from center-based resize to normal one\n           (!centerTransform && transform.originX === 'center' && transform.originY === 'center')\n        ) {\n          this._resetCurrentTransform();\n          transform.reset = true;\n        }\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {Object} transform current transform\n     * @param {Number} x mouse position x from origin\n     * @param {Number} y mouse position y from origin\n     * @return {Boolean} true if the scaling occurred\n     */\n    _onScale: function(e, transform, x, y) {\n      if (this._isUniscalePossible(e, transform.target)) {\n        transform.currentAction = 'scale';\n        return this._scaleObject(x, y);\n      }\n      else {\n        // Switch from a normal resize to proportional\n        if (!transform.reset && transform.currentAction === 'scale') {\n          this._resetCurrentTransform();\n        }\n\n        transform.currentAction = 'scaleEqually';\n        return this._scaleObject(x, y, 'equally');\n      }\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target current target\n     * @return {Boolean} true if unproportional scaling is possible\n     */\n    _isUniscalePossible: function(e, target) {\n      return (e[this.uniScaleKey] || this.uniScaleTransform) && !target.get('lockUniScaling');\n    },\n\n    /**\n     * Sets the cursor depending on where the canvas is being hovered.\n     * Note: very buggy in Opera\n     * @param {Event} e Event object\n     * @param {Object} target Object that the mouse is hovering, if so.\n     */\n    _setCursorFromEvent: function (e, target) {\n      if (!target) {\n        this.setCursor(this.defaultCursor);\n        return false;\n      }\n      var hoverCursor = target.hoverCursor || this.hoverCursor,\n          activeSelection = this._activeObject && this._activeObject.type === 'activeSelection' ?\n            this._activeObject : null,\n          // only show proper corner when group selection is not active\n          corner = (!activeSelection || !activeSelection.contains(target))\n                    && target._findTargetCorner(this.getPointer(e, true));\n\n      if (!corner) {\n        if (target.subTargetCheck){\n          // hoverCursor should come from top-most subTarget,\n          // so we walk the array backwards\n          this.targets.concat().reverse().map(function(_target){\n            hoverCursor = _target.hoverCursor || hoverCursor;\n          });\n        }\n        this.setCursor(hoverCursor);\n      }\n      else {\n        this.setCursor(this.getCornerCursor(corner, target, e));\n      }\n    },\n\n    /**\n     * @private\n     */\n    getCornerCursor: function(corner, target, e) {\n      if (this.actionIsDisabled(corner, target, e)) {\n        return this.notAllowedCursor;\n      }\n      else if (corner in cursorOffset) {\n        return this._getRotatedCornerCursor(corner, target, e);\n      }\n      else if (corner === 'mtr' && target.hasRotatingPoint) {\n        return this.rotationCursor;\n      }\n      else {\n        return this.defaultCursor;\n      }\n    },\n\n    actionIsDisabled: function(corner, target, e) {\n      if (corner === 'mt' || corner === 'mb') {\n        return e[this.altActionKey] ? target.lockSkewingX : target.lockScalingY;\n      }\n      else if (corner === 'ml' || corner === 'mr') {\n        return e[this.altActionKey] ? target.lockSkewingY : target.lockScalingX;\n      }\n      else if (corner === 'mtr') {\n        return target.lockRotation;\n      }\n      else {\n        return this._isUniscalePossible(e, target) ?\n          target.lockScalingX && target.lockScalingY : target.lockScalingX || target.lockScalingY;\n      }\n    },\n\n    /**\n     * @private\n     */\n    _getRotatedCornerCursor: function(corner, target, e) {\n      var n = Math.round((target.angle % 360) / 45);\n\n      if (n < 0) {\n        n += 8; // full circle ahead\n      }\n      n += cursorOffset[corner];\n      if (e[this.altActionKey] && cursorOffset[corner] % 2 === 0) {\n        //if we are holding shift and we are on a mx corner...\n        n += 2;\n      }\n      // normalize n to be from 0 to 7\n      n %= 8;\n\n      return this.cursorMap[n];\n    }\n  });\n})();\n\n\n(function() {\n\n  var min = Math.min,\n      max = Math.max;\n\n  fabric.util.object.extend(fabric.Canvas.prototype, /** @lends fabric.Canvas.prototype */ {\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     * @return {Boolean}\n     */\n    _shouldGroup: function(e, target) {\n      var activeObject = this._activeObject;\n      return activeObject && this._isSelectionKeyPressed(e) && target && target.selectable && this.selection &&\n            (activeObject !== target || activeObject.type === 'activeSelection') && !target.onSelect({ e: e });\n    },\n\n    /**\n     * @private\n     * @param {Event} e Event object\n     * @param {fabric.Object} target\n     */\n    _handleGrouping: function (e, target) {\n      var activeObject = this._activeObject;\n      // avoid multi select when shift click on a corner\n      if (activeObject.__corner) {\n        return;\n      }\n      if (target === activeObject) {\n        // if it's a group, find target again, using activeGroup objects\n        target = this.findTarget(e, true);\n        // if even object is not found or we are on activeObjectCorner, bail out\n        if (!target || !target.selectable) {\n          return;\n        }\n      }\n      if (activeObject && activeObject.type === 'activeSelection') {\n        this._updateActiveSelection(target, e);\n      }\n      else {\n        this._createActiveSelection(target, e);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _updateActiveSelection: function(target, e) {\n      var activeSelection = this._activeObject,\n          currentActiveObjects = activeSelection._objects.slice(0);\n      if (activeSelection.contains(target)) {\n        activeSelection.removeWithUpdate(target);\n        this._hoveredTarget = target;\n        this._hoveredTargets = this.targets.concat();\n        if (activeSelection.size() === 1) {\n          // activate last remaining object\n          this._setActiveObject(activeSelection.item(0), e);\n        }\n      }\n      else {\n        activeSelection.addWithUpdate(target);\n        this._hoveredTarget = activeSelection;\n        this._hoveredTargets = this.targets.concat();\n      }\n      this._fireSelectionEvents(currentActiveObjects, e);\n    },\n\n    /**\n     * @private\n     */\n    _createActiveSelection: function(target, e) {\n      var currentActives = this.getActiveObjects(), group = this._createGroup(target);\n      this._hoveredTarget = group;\n      // ISSUE 4115: should we consider subTargets here?\n      // this._hoveredTargets = [];\n      // this._hoveredTargets = this.targets.concat();\n      this._setActiveObject(group, e);\n      this._fireSelectionEvents(currentActives, e);\n    },\n\n    /**\n     * @private\n     * @param {Object} target\n     */\n    _createGroup: function(target) {\n      var objects = this._objects,\n          isActiveLower = objects.indexOf(this._activeObject) < objects.indexOf(target),\n          groupObjects = isActiveLower\n            ? [this._activeObject, target]\n            : [target, this._activeObject];\n      this._activeObject.isEditing && this._activeObject.exitEditing();\n      return new fabric.ActiveSelection(groupObjects, {\n        canvas: this\n      });\n    },\n\n    /**\n     * @private\n     * @param {Event} e mouse event\n     */\n    _groupSelectedObjects: function (e) {\n\n      var group = this._collectObjects(e),\n          aGroup;\n\n      // do not create group for 1 element only\n      if (group.length === 1) {\n        this.setActiveObject(group[0], e);\n      }\n      else if (group.length > 1) {\n        aGroup = new fabric.ActiveSelection(group.reverse(), {\n          canvas: this\n        });\n        this.setActiveObject(aGroup, e);\n      }\n    },\n\n    /**\n     * @private\n     */\n    _collectObjects: function(e) {\n      var group = [],\n          currentObject,\n          x1 = this._groupSelector.ex,\n          y1 = this._groupSelector.ey,\n          x2 = x1 + this._groupSelector.left,\n          y2 = y1 + this._groupSelector.top,\n          selectionX1Y1 = new fabric.Point(min(x1, x2), min(y1, y2)),\n          selectionX2Y2 = new fabric.Point(max(x1, x2), max(y1, y2)),\n          allowIntersect = !this.selectionFullyContained,\n          isClick = x1 === x2 && y1 === y2;\n      // we iterate reverse order to collect top first in case of click.\n      for (var i = this._objects.length; i--; ) {\n        currentObject = this._objects[i];\n\n        if (!currentObject || !currentObject.selectable || !currentObject.visible) {\n          continue;\n        }\n\n        if ((allowIntersect && currentObject.intersectsWithRect(selectionX1Y1, selectionX2Y2)) ||\n            currentObject.isContainedWithinRect(selectionX1Y1, selectionX2Y2) ||\n            (allowIntersect && currentObject.containsPoint(selectionX1Y1)) ||\n            (allowIntersect && currentObject.containsPoint(selectionX2Y2))\n        ) {\n          group.push(currentObject);\n          // only add one object if it's a click\n          if (isClick) {\n            break;\n          }\n        }\n      }\n\n      if (group.length > 1) {\n        group = group.filter(function(object) {\n          return !object.onSelect({ e: e });\n        });\n      }\n\n      return group;\n    },\n\n    /**\n     * @private\n     */\n    _maybeGroupObjects: function(e) {\n      if (this.selection && this._groupSelector) {\n        this._groupSelectedObjects(e);\n      }\n      this.setCursor(this.defaultCursor);\n      // clear selection and current transformation\n      this._groupSelector = null;\n    }\n  });\n\n})();\n\n\n(function () {\n  fabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n    /**\n     * Exports canvas element to a dataurl image. Note that when multiplier is used, cropping is scaled appropriately\n     * @param {Object} [options] Options object\n     * @param {String} [options.format=png] The format of the output image. Either \"jpeg\" or \"png\"\n     * @param {Number} [options.quality=1] Quality level (0..1). Only used for jpeg.\n     * @param {Number} [options.multiplier=1] Multiplier to scale by, to have consistent\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 2.0.0\n     * @return {String} Returns a data: URL containing a representation of the object in the format specified by options.format\n     * @see {@link http://jsfiddle.net/fabricjs/NfZVb/|jsFiddle demo}\n     * @example <caption>Generate jpeg dataURL with lower quality</caption>\n     * var dataURL = canvas.toDataURL({\n     *   format: 'jpeg',\n     *   quality: 0.8\n     * });\n     * @example <caption>Generate cropped png dataURL (clipping of canvas)</caption>\n     * var dataURL = canvas.toDataURL({\n     *   format: 'png',\n     *   left: 100,\n     *   top: 100,\n     *   width: 200,\n     *   height: 200\n     * });\n     * @example <caption>Generate double scaled png dataURL</caption>\n     * var dataURL = canvas.toDataURL({\n     *   format: 'png',\n     *   multiplier: 2\n     * });\n     */\n    toDataURL: function (options) {\n      options || (options = { });\n\n      var format = options.format || 'png',\n          quality = options.quality || 1,\n          multiplier = (options.multiplier || 1) * (options.enableRetinaScaling ? this.getRetinaScaling() : 1),\n          canvasEl = this.toCanvasElement(multiplier, options);\n      return fabric.util.toDataURL(canvasEl, format, quality);\n    },\n\n    /**\n     * Create a new HTMLCanvas element painted with the current canvas content.\n     * No need to resize the actual one or repaint it.\n     * Will transfer object ownership to a new canvas, paint it, and set everything back.\n     * This is an intermediary step used to get to a dataUrl but also it is useful to\n     * create quick image copies of a canvas without passing for the dataUrl string\n     * @param {Number} [multiplier] a zoom factor.\n     * @param {Object} [cropping] Cropping informations\n     * @param {Number} [cropping.left] Cropping left offset.\n     * @param {Number} [cropping.top] Cropping top offset.\n     * @param {Number} [cropping.width] Cropping width.\n     * @param {Number} [cropping.height] Cropping height.\n     */\n    toCanvasElement: function(multiplier, cropping) {\n      multiplier = multiplier || 1;\n      cropping = cropping || { };\n      var scaledWidth = (cropping.width || this.width) * multiplier,\n          scaledHeight = (cropping.height || this.height) * multiplier,\n          zoom = this.getZoom(),\n          originalWidth = this.width,\n          originalHeight = this.height,\n          newZoom = zoom * multiplier,\n          vp = this.viewportTransform,\n          translateX = (vp[4] - (cropping.left || 0)) * multiplier,\n          translateY = (vp[5] - (cropping.top || 0)) * multiplier,\n          originalInteractive = this.interactive,\n          newVp = [newZoom, 0, 0, newZoom, translateX, translateY],\n          originalRetina = this.enableRetinaScaling,\n          canvasEl = fabric.util.createCanvasElement(),\n          originalContextTop = this.contextTop;\n      canvasEl.width = scaledWidth;\n      canvasEl.height = scaledHeight;\n      this.contextTop = null;\n      this.enableRetinaScaling = false;\n      this.interactive = false;\n      this.viewportTransform = newVp;\n      this.width = scaledWidth;\n      this.height = scaledHeight;\n      this.calcViewportBoundaries();\n      this.renderCanvas(canvasEl.getContext('2d'), this._objects);\n      this.viewportTransform = vp;\n      this.width = originalWidth;\n      this.height = originalHeight;\n      this.calcViewportBoundaries();\n      this.interactive = originalInteractive;\n      this.enableRetinaScaling = originalRetina;\n      this.contextTop = originalContextTop;\n      return canvasEl;\n    },\n  });\n\n})();\n\n\nfabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n  /**\n   * Populates canvas with data from the specified dataless JSON.\n   * JSON format must conform to the one of {@link fabric.Canvas#toDatalessJSON}\n   * @deprecated since 1.2.2\n   * @param {String|Object} json JSON string or object\n   * @param {Function} callback Callback, invoked when json is parsed\n   *                            and corresponding objects (e.g: {@link fabric.Image})\n   *                            are initialized\n   * @param {Function} [reviver] Method for further parsing of JSON elements, called after each fabric object created.\n   * @return {fabric.Canvas} instance\n   * @chainable\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#deserialization}\n   */\n  loadFromDatalessJSON: function (json, callback, reviver) {\n    return this.loadFromJSON(json, callback, reviver);\n  },\n\n  /**\n   * Populates canvas with data from the specified JSON.\n   * JSON format must conform to the one of {@link fabric.Canvas#toJSON}\n   * @param {String|Object} json JSON string or object\n   * @param {Function} callback Callback, invoked when json is parsed\n   *                            and corresponding objects (e.g: {@link fabric.Image})\n   *                            are initialized\n   * @param {Function} [reviver] Method for further parsing of JSON elements, called after each fabric object created.\n   * @return {fabric.Canvas} instance\n   * @chainable\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#deserialization}\n   * @see {@link http://jsfiddle.net/fabricjs/fmgXt/|jsFiddle demo}\n   * @example <caption>loadFromJSON</caption>\n   * canvas.loadFromJSON(json, canvas.renderAll.bind(canvas));\n   * @example <caption>loadFromJSON with reviver</caption>\n   * canvas.loadFromJSON(json, canvas.renderAll.bind(canvas), function(o, object) {\n   *   // `o` = json object\n   *   // `object` = fabric.Object instance\n   *   // ... do some stuff ...\n   * });\n   */\n  loadFromJSON: function (json, callback, reviver) {\n    if (!json) {\n      return;\n    }\n\n    // serialize if it wasn't already\n    var serialized = (typeof json === 'string')\n      ? JSON.parse(json)\n      : fabric.util.object.clone(json);\n\n    var _this = this,\n        clipPath = serialized.clipPath,\n        renderOnAddRemove = this.renderOnAddRemove;\n\n    this.renderOnAddRemove = false;\n\n    delete serialized.clipPath;\n\n    this._enlivenObjects(serialized.objects, function (enlivenedObjects) {\n      _this.clear();\n      _this._setBgOverlay(serialized, function () {\n        if (clipPath) {\n          _this._enlivenObjects([clipPath], function (enlivenedCanvasClip) {\n            _this.clipPath = enlivenedCanvasClip[0];\n            _this.__setupCanvas.call(_this, serialized, enlivenedObjects, renderOnAddRemove, callback);\n          });\n        }\n        else {\n          _this.__setupCanvas.call(_this, serialized, enlivenedObjects, renderOnAddRemove, callback);\n        }\n      });\n    }, reviver);\n    return this;\n  },\n\n  /**\n   * @private\n   * @param {Object} serialized Object with background and overlay information\n   * @param {Array} restored canvas objects\n   * @param {Function} cached renderOnAddRemove callback\n   * @param {Function} callback Invoked after all background and overlay images/patterns loaded\n   */\n  __setupCanvas: function(serialized, enlivenedObjects, renderOnAddRemove, callback) {\n    var _this = this;\n    enlivenedObjects.forEach(function(obj, index) {\n      // we splice the array just in case some custom classes restored from JSON\n      // will add more object to canvas at canvas init.\n      _this.insertAt(obj, index);\n    });\n    this.renderOnAddRemove = renderOnAddRemove;\n    // remove parts i cannot set as options\n    delete serialized.objects;\n    delete serialized.backgroundImage;\n    delete serialized.overlayImage;\n    delete serialized.background;\n    delete serialized.overlay;\n    // this._initOptions does too many things to just\n    // call it. Normally loading an Object from JSON\n    // create the Object instance. Here the Canvas is\n    // already an instance and we are just loading things over it\n    this._setOptions(serialized);\n    this.renderAll();\n    callback && callback();\n  },\n\n  /**\n   * @private\n   * @param {Object} serialized Object with background and overlay information\n   * @param {Function} callback Invoked after all background and overlay images/patterns loaded\n   */\n  _setBgOverlay: function(serialized, callback) {\n    var loaded = {\n      backgroundColor: false,\n      overlayColor: false,\n      backgroundImage: false,\n      overlayImage: false\n    };\n\n    if (!serialized.backgroundImage && !serialized.overlayImage && !serialized.background && !serialized.overlay) {\n      callback && callback();\n      return;\n    }\n\n    var cbIfLoaded = function () {\n      if (loaded.backgroundImage && loaded.overlayImage && loaded.backgroundColor && loaded.overlayColor) {\n        callback && callback();\n      }\n    };\n\n    this.__setBgOverlay('backgroundImage', serialized.backgroundImage, loaded, cbIfLoaded);\n    this.__setBgOverlay('overlayImage', serialized.overlayImage, loaded, cbIfLoaded);\n    this.__setBgOverlay('backgroundColor', serialized.background, loaded, cbIfLoaded);\n    this.__setBgOverlay('overlayColor', serialized.overlay, loaded, cbIfLoaded);\n  },\n\n  /**\n   * @private\n   * @param {String} property Property to set (backgroundImage, overlayImage, backgroundColor, overlayColor)\n   * @param {(Object|String)} value Value to set\n   * @param {Object} loaded Set loaded property to true if property is set\n   * @param {Object} callback Callback function to invoke after property is set\n   */\n  __setBgOverlay: function(property, value, loaded, callback) {\n    var _this = this;\n\n    if (!value) {\n      loaded[property] = true;\n      callback && callback();\n      return;\n    }\n\n    if (property === 'backgroundImage' || property === 'overlayImage') {\n      fabric.util.enlivenObjects([value], function(enlivedObject){\n        _this[property] = enlivedObject[0];\n        loaded[property] = true;\n        callback && callback();\n      });\n    }\n    else {\n      this['set' + fabric.util.string.capitalize(property, true)](value, function() {\n        loaded[property] = true;\n        callback && callback();\n      });\n    }\n  },\n\n  /**\n   * @private\n   * @param {Array} objects\n   * @param {Function} callback\n   * @param {Function} [reviver]\n   */\n  _enlivenObjects: function (objects, callback, reviver) {\n    if (!objects || objects.length === 0) {\n      callback && callback([]);\n      return;\n    }\n\n    fabric.util.enlivenObjects(objects, function(enlivenedObjects) {\n      callback && callback(enlivenedObjects);\n    }, null, reviver);\n  },\n\n  /**\n   * @private\n   * @param {String} format\n   * @param {Function} callback\n   */\n  _toDataURL: function (format, callback) {\n    this.clone(function (clone) {\n      callback(clone.toDataURL(format));\n    });\n  },\n\n  /**\n   * @private\n   * @param {String} format\n   * @param {Number} multiplier\n   * @param {Function} callback\n   */\n  _toDataURLWithMultiplier: function (format, multiplier, callback) {\n    this.clone(function (clone) {\n      callback(clone.toDataURLWithMultiplier(format, multiplier));\n    });\n  },\n\n  /**\n   * Clones canvas instance\n   * @param {Object} [callback] Receives cloned instance as a first argument\n   * @param {Array} [properties] Array of properties to include in the cloned canvas and children\n   */\n  clone: function (callback, properties) {\n    var data = JSON.stringify(this.toJSON(properties));\n    this.cloneWithoutData(function(clone) {\n      clone.loadFromJSON(data, function() {\n        callback && callback(clone);\n      });\n    });\n  },\n\n  /**\n   * Clones canvas instance without cloning existing data.\n   * This essentially copies canvas dimensions, clipping properties, etc.\n   * but leaves data empty (so that you can populate it with your own)\n   * @param {Object} [callback] Receives cloned instance as a first argument\n   */\n  cloneWithoutData: function(callback) {\n    var el = fabric.util.createCanvasElement();\n\n    el.width = this.width;\n    el.height = this.height;\n\n    var clone = new fabric.Canvas(el);\n    clone.clipTo = this.clipTo;\n    if (this.backgroundImage) {\n      clone.setBackgroundImage(this.backgroundImage.src, function() {\n        clone.renderAll();\n        callback && callback(clone);\n      });\n      clone.backgroundImageOpacity = this.backgroundImageOpacity;\n      clone.backgroundImageStretch = this.backgroundImageStretch;\n    }\n    else {\n      callback && callback(clone);\n    }\n  }\n});\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      clone = fabric.util.object.clone,\n      toFixed = fabric.util.toFixed,\n      capitalize = fabric.util.string.capitalize,\n      degreesToRadians = fabric.util.degreesToRadians,\n      supportsLineDash = fabric.StaticCanvas.supports('setLineDash'),\n      objectCaching = !fabric.isLikelyNode,\n      ALIASING_LIMIT = 2;\n\n  if (fabric.Object) {\n    return;\n  }\n\n  /**\n   * Root object class from which all 2d shape classes inherit from\n   * @class fabric.Object\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#objects}\n   * @see {@link fabric.Object#initialize} for constructor definition\n   *\n   * @fires added\n   * @fires removed\n   *\n   * @fires selected\n   * @fires deselected\n   * @fires modified\n   * @fires modified\n   * @fires moved\n   * @fires scaled\n   * @fires rotated\n   * @fires skewed\n   *\n   * @fires rotating\n   * @fires scaling\n   * @fires moving\n   * @fires skewing\n   *\n   * @fires mousedown\n   * @fires mouseup\n   * @fires mouseover\n   * @fires mouseout\n   * @fires mousewheel\n   * @fires mousedblclick\n   *\n   * @fires dragover\n   * @fires dragenter\n   * @fires dragleave\n   * @fires drop\n   */\n  fabric.Object = fabric.util.createClass(fabric.CommonMethods, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Type of an object (rect, circle, path, etc.).\n     * Note that this property is meant to be read-only and not meant to be modified.\n     * If you modify, certain parts of Fabric (such as JSON loading) won't work correctly.\n     * @type String\n     * @default\n     */\n    type:                     'object',\n\n    /**\n     * Horizontal origin of transformation of an object (one of \"left\", \"right\", \"center\")\n     * See http://jsfiddle.net/1ow02gea/244/ on how originX/originY affect objects in groups\n     * @type String\n     * @default\n     */\n    originX:                  'left',\n\n    /**\n     * Vertical origin of transformation of an object (one of \"top\", \"bottom\", \"center\")\n     * See http://jsfiddle.net/1ow02gea/244/ on how originX/originY affect objects in groups\n     * @type String\n     * @default\n     */\n    originY:                  'top',\n\n    /**\n     * Top position of an object. Note that by default it's relative to object top. You can change this by setting originY={top/center/bottom}\n     * @type Number\n     * @default\n     */\n    top:                      0,\n\n    /**\n     * Left position of an object. Note that by default it's relative to object left. You can change this by setting originX={left/center/right}\n     * @type Number\n     * @default\n     */\n    left:                     0,\n\n    /**\n     * Object width\n     * @type Number\n     * @default\n     */\n    width:                    0,\n\n    /**\n     * Object height\n     * @type Number\n     * @default\n     */\n    height:                   0,\n\n    /**\n     * Object scale factor (horizontal)\n     * @type Number\n     * @default\n     */\n    scaleX:                   1,\n\n    /**\n     * Object scale factor (vertical)\n     * @type Number\n     * @default\n     */\n    scaleY:                   1,\n\n    /**\n     * When true, an object is rendered as flipped horizontally\n     * @type Boolean\n     * @default\n     */\n    flipX:                    false,\n\n    /**\n     * When true, an object is rendered as flipped vertically\n     * @type Boolean\n     * @default\n     */\n    flipY:                    false,\n\n    /**\n     * Opacity of an object\n     * @type Number\n     * @default\n     */\n    opacity:                  1,\n\n    /**\n     * Angle of rotation of an object (in degrees)\n     * @type Number\n     * @default\n     */\n    angle:                    0,\n\n    /**\n     * Angle of skew on x axes of an object (in degrees)\n     * @type Number\n     * @default\n     */\n    skewX:                    0,\n\n    /**\n     * Angle of skew on y axes of an object (in degrees)\n     * @type Number\n     * @default\n     */\n    skewY:                    0,\n\n    /**\n     * Size of object's controlling corners (in pixels)\n     * @type Number\n     * @default\n     */\n    cornerSize:               13,\n\n    /**\n     * When true, object's controlling corners are rendered as transparent inside (i.e. stroke instead of fill)\n     * @type Boolean\n     * @default\n     */\n    transparentCorners:       true,\n\n    /**\n     * Default cursor value used when hovering over this object on canvas\n     * @type String\n     * @default\n     */\n    hoverCursor:              null,\n\n    /**\n     * Default cursor value used when moving this object on canvas\n     * @type String\n     * @default\n     */\n    moveCursor:               null,\n\n    /**\n     * Padding between object and its controlling borders (in pixels)\n     * @type Number\n     * @default\n     */\n    padding:                  0,\n\n    /**\n     * Color of controlling borders of an object (when it's active)\n     * @type String\n     * @default\n     */\n    borderColor:              'rgba(102,153,255,0.75)',\n\n    /**\n     * Array specifying dash pattern of an object's borders (hasBorder must be true)\n     * @since 1.6.2\n     * @type Array\n     */\n    borderDashArray:          null,\n\n    /**\n     * Color of controlling corners of an object (when it's active)\n     * @type String\n     * @default\n     */\n    cornerColor:              'rgba(102,153,255,0.5)',\n\n    /**\n     * Color of controlling corners of an object (when it's active and transparentCorners false)\n     * @since 1.6.2\n     * @type String\n     * @default\n     */\n    cornerStrokeColor:        null,\n\n    /**\n     * Specify style of control, 'rect' or 'circle'\n     * @since 1.6.2\n     * @type String\n     */\n    cornerStyle:          'rect',\n\n    /**\n     * Array specifying dash pattern of an object's control (hasBorder must be true)\n     * @since 1.6.2\n     * @type Array\n     */\n    cornerDashArray:          null,\n\n    /**\n     * When true, this object will use center point as the origin of transformation\n     * when being scaled via the controls.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredScaling:          false,\n\n    /**\n     * When true, this object will use center point as the origin of transformation\n     * when being rotated via the controls.\n     * <b>Backwards incompatibility note:</b> This property replaces \"centerTransform\" (Boolean).\n     * @since 1.3.4\n     * @type Boolean\n     * @default\n     */\n    centeredRotation:         true,\n\n    /**\n     * Color of object's fill\n     * takes css colors https://www.w3.org/TR/css-color-3/\n     * @type String\n     * @default\n     */\n    fill:                     'rgb(0,0,0)',\n\n    /**\n     * Fill rule used to fill an object\n     * accepted values are nonzero, evenodd\n     * <b>Backwards incompatibility note:</b> This property was used for setting globalCompositeOperation until v1.4.12 (use `fabric.Object#globalCompositeOperation` instead)\n     * @type String\n     * @default\n     */\n    fillRule:                 'nonzero',\n\n    /**\n     * Composite rule used for canvas globalCompositeOperation\n     * @type String\n     * @default\n     */\n    globalCompositeOperation: 'source-over',\n\n    /**\n     * Background color of an object.\n     * takes css colors https://www.w3.org/TR/css-color-3/\n     * @type String\n     * @default\n     */\n    backgroundColor:          '',\n\n    /**\n     * Selection Background color of an object. colored layer behind the object when it is active.\n     * does not mix good with globalCompositeOperation methods.\n     * @type String\n     * @default\n     */\n    selectionBackgroundColor:          '',\n\n    /**\n     * When defined, an object is rendered via stroke and this property specifies its color\n     * takes css colors https://www.w3.org/TR/css-color-3/\n     * @type String\n     * @default\n     */\n    stroke:                   null,\n\n    /**\n     * Width of a stroke used to render this object\n     * @type Number\n     * @default\n     */\n    strokeWidth:              1,\n\n    /**\n     * Array specifying dash pattern of an object's stroke (stroke must be defined)\n     * @type Array\n     */\n    strokeDashArray:          null,\n\n    /**\n     * Line offset of an object's stroke\n     * @type Number\n     * @default\n     */\n    strokeDashOffset: 0,\n\n    /**\n     * Line endings style of an object's stroke (one of \"butt\", \"round\", \"square\")\n     * @type String\n     * @default\n     */\n    strokeLineCap:            'butt',\n\n    /**\n     * Corner style of an object's stroke (one of \"bevil\", \"round\", \"miter\")\n     * @type String\n     * @default\n     */\n    strokeLineJoin:           'miter',\n\n    /**\n     * Maximum miter length (used for strokeLineJoin = \"miter\") of an object's stroke\n     * @type Number\n     * @default\n     */\n    strokeMiterLimit:         4,\n\n    /**\n     * Shadow object representing shadow of this shape\n     * @type fabric.Shadow\n     * @default\n     */\n    shadow:                   null,\n\n    /**\n     * Opacity of object's controlling borders when object is active and moving\n     * @type Number\n     * @default\n     */\n    borderOpacityWhenMoving:  0.4,\n\n    /**\n     * Scale factor of object's controlling borders\n     * bigger number will make a thicker border\n     * border is 1, so this is basically a border tickness\n     * since there is no way to change the border itself.\n     * @type Number\n     * @default\n     */\n    borderScaleFactor:        1,\n\n    /**\n     * Transform matrix (similar to SVG's transform matrix)\n     * This property has been depreacted. Since caching and and qrDecompose this\n     * property can be handled with the standard top,left,scaleX,scaleY,angle and skewX.\n     * A documentation example on how to parse and merge a transformMatrix will be provided before\n     * completely removing it in fabric 4.0\n     * If you are starting a project now, DO NOT use it.\n     * @deprecated since 3.2.0\n     * @type Array\n     */\n    transformMatrix:          null,\n\n    /**\n     * Minimum allowed scale value of an object\n     * @type Number\n     * @default\n     */\n    minScaleLimit:            0,\n\n    /**\n     * When set to `false`, an object can not be selected for modification (using either point-click-based or group-based selection).\n     * But events still fire on it.\n     * @type Boolean\n     * @default\n     */\n    selectable:               true,\n\n    /**\n     * When set to `false`, an object can not be a target of events. All events propagate through it. Introduced in v1.3.4\n     * @type Boolean\n     * @default\n     */\n    evented:                  true,\n\n    /**\n     * When set to `false`, an object is not rendered on canvas\n     * @type Boolean\n     * @default\n     */\n    visible:                  true,\n\n    /**\n     * When set to `false`, object's controls are not displayed and can not be used to manipulate object\n     * @type Boolean\n     * @default\n     */\n    hasControls:              true,\n\n    /**\n     * When set to `false`, object's controlling borders are not rendered\n     * @type Boolean\n     * @default\n     */\n    hasBorders:               true,\n\n    /**\n     * When set to `false`, object's controlling rotating point will not be visible or selectable\n     * @type Boolean\n     * @default\n     */\n    hasRotatingPoint:         true,\n\n    /**\n     * Offset for object's controlling rotating point (when enabled via `hasRotatingPoint`)\n     * @type Number\n     * @default\n     */\n    rotatingPointOffset:      40,\n\n    /**\n     * When set to `true`, objects are \"found\" on canvas on per-pixel basis rather than according to bounding box\n     * @type Boolean\n     * @default\n     */\n    perPixelTargetFind:       false,\n\n    /**\n     * When `false`, default object's values are not included in its serialization\n     * @type Boolean\n     * @default\n     */\n    includeDefaultValues:     true,\n\n    /**\n     * Function that determines clipping of an object (context is passed as a first argument).\n     * If you are using code minification, ctx argument can be minified/manglied you should use\n     * as a workaround `var ctx = arguments[0];` in the function;\n     * Note that context origin is at the object's center point (not left/top corner)\n     * @deprecated since 2.0.0\n     * @type Function\n     */\n    clipTo:                   null,\n\n    /**\n     * When `true`, object horizontal movement is locked\n     * @type Boolean\n     * @default\n     */\n    lockMovementX:            false,\n\n    /**\n     * When `true`, object vertical movement is locked\n     * @type Boolean\n     * @default\n     */\n    lockMovementY:            false,\n\n    /**\n     * When `true`, object rotation is locked\n     * @type Boolean\n     * @default\n     */\n    lockRotation:             false,\n\n    /**\n     * When `true`, object horizontal scaling is locked\n     * @type Boolean\n     * @default\n     */\n    lockScalingX:             false,\n\n    /**\n     * When `true`, object vertical scaling is locked\n     * @type Boolean\n     * @default\n     */\n    lockScalingY:             false,\n\n    /**\n     * When `true`, object non-uniform scaling is locked\n     * @type Boolean\n     * @default\n     */\n    lockUniScaling:           false,\n\n    /**\n     * When `true`, object horizontal skewing is locked\n     * @type Boolean\n     * @default\n     */\n    lockSkewingX:             false,\n\n    /**\n     * When `true`, object vertical skewing is locked\n     * @type Boolean\n     * @default\n     */\n    lockSkewingY:             false,\n\n    /**\n     * When `true`, object cannot be flipped by scaling into negative values\n     * @type Boolean\n     * @default\n     */\n    lockScalingFlip:          false,\n\n    /**\n     * When `true`, object is not exported in OBJECT/JSON\n     * @since 1.6.3\n     * @type Boolean\n     * @default\n     */\n    excludeFromExport:        false,\n\n    /**\n     * When `true`, object is cached on an additional canvas.\n     * When `false`, object is not cached unless necessary ( clipPath )\n     * default to true\n     * @since 1.7.0\n     * @type Boolean\n     * @default true\n     */\n    objectCaching:            objectCaching,\n\n    /**\n     * When `true`, object properties are checked for cache invalidation. In some particular\n     * situation you may want this to be disabled ( spray brush, very big, groups)\n     * or if your application does not allow you to modify properties for groups child you want\n     * to disable it for groups.\n     * default to false\n     * since 1.7.0\n     * @type Boolean\n     * @default false\n     */\n    statefullCache:            false,\n\n    /**\n     * When `true`, cache does not get updated during scaling. The picture will get blocky if scaled\n     * too much and will be redrawn with correct details at the end of scaling.\n     * this setting is performance and application dependant.\n     * default to true\n     * since 1.7.0\n     * @type Boolean\n     * @default true\n     */\n    noScaleCache:              true,\n\n    /**\n     * When `false`, the stoke width will scale with the object.\n     * When `true`, the stroke will always match the exact pixel size entered for stroke width.\n     * default to false\n     * @since 2.6.0\n     * @type Boolean\n     * @default false\n     * @type Boolean\n     * @default false\n     */\n    strokeUniform:              false,\n\n    /**\n     * When set to `true`, object's cache will be rerendered next render call.\n     * since 1.7.0\n     * @type Boolean\n     * @default true\n     */\n    dirty:                true,\n\n    /**\n     * keeps the value of the last hovered corner during mouse move.\n     * 0 is no corner, or 'mt', 'ml', 'mtr' etc..\n     * It should be private, but there is no harm in using it as\n     * a read-only property.\n     * @type number|string|any\n     * @default 0\n     */\n    __corner: 0,\n\n    /**\n     * Determines if the fill or the stroke is drawn first (one of \"fill\" or \"stroke\")\n     * @type String\n     * @default\n     */\n    paintFirst:           'fill',\n\n    /**\n     * List of properties to consider when checking if state\n     * of an object is changed (fabric.Object#hasStateChanged)\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: (\n      'top left width height scaleX scaleY flipX flipY originX originY transformMatrix ' +\n      'stroke strokeWidth strokeDashArray strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit ' +\n      'angle opacity fill globalCompositeOperation shadow clipTo visible backgroundColor ' +\n      'skewX skewY fillRule paintFirst clipPath strokeUniform'\n    ).split(' '),\n\n    /**\n     * List of properties to consider when checking if cache needs refresh\n     * Those properties are checked by statefullCache ON ( or lazy mode if we want ) or from single\n     * calls to Object.set(key, value). If the key is in this list, the object is marked as dirty\n     * and refreshed at the next render\n     * @type Array\n     */\n    cacheProperties: (\n      'fill stroke strokeWidth strokeDashArray width height paintFirst strokeUniform' +\n      ' strokeLineCap strokeDashOffset strokeLineJoin strokeMiterLimit backgroundColor clipPath'\n    ).split(' '),\n\n    /**\n     * a fabricObject that, without stroke define a clipping area with their shape. filled in black\n     * the clipPath object gets used when the object has rendered, and the context is placed in the center\n     * of the object cacheCanvas.\n     * If you want 0,0 of a clipPath to align with an object center, use clipPath.originX/Y to 'center'\n     * @type fabric.Object\n     */\n    clipPath: undefined,\n\n    /**\n     * Meaningful ONLY when the object is used as clipPath.\n     * if true, the clipPath will make the object clip to the outside of the clipPath\n     * since 2.4.0\n     * @type boolean\n     * @default false\n     */\n    inverted: false,\n\n    /**\n     * Meaningful ONLY when the object is used as clipPath.\n     * if true, the clipPath will have its top and left relative to canvas, and will\n     * not be influenced by the object transform. This will make the clipPath relative\n     * to the canvas, but clipping just a particular object.\n     * WARNING this is beta, this feature may change or be renamed.\n     * since 2.4.0\n     * @type boolean\n     * @default false\n     */\n    absolutePositioned: false,\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      if (options) {\n        this.setOptions(options);\n      }\n    },\n\n    /**\n     * Create a the canvas used to keep the cached copy of the object\n     * @private\n     */\n    _createCacheCanvas: function() {\n      this._cacheProperties = {};\n      this._cacheCanvas = fabric.util.createCanvasElement();\n      this._cacheContext = this._cacheCanvas.getContext('2d');\n      this._updateCacheCanvas();\n      // if canvas gets created, is empty, so dirty.\n      this.dirty = true;\n    },\n\n    /**\n     * Limit the cache dimensions so that X * Y do not cross fabric.perfLimitSizeTotal\n     * and each side do not cross fabric.cacheSideLimit\n     * those numbers are configurable so that you can get as much detail as you want\n     * making bargain with performances.\n     * @param {Object} dims\n     * @param {Object} dims.width width of canvas\n     * @param {Object} dims.height height of canvas\n     * @param {Object} dims.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @param {Object} dims.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     * @return {Object}.width width of canvas\n     * @return {Object}.height height of canvas\n     * @return {Object}.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @return {Object}.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     */\n    _limitCacheSize: function(dims) {\n      var perfLimitSizeTotal = fabric.perfLimitSizeTotal,\n          width = dims.width, height = dims.height,\n          max = fabric.maxCacheSideLimit, min = fabric.minCacheSideLimit;\n      if (width <= max && height <= max && width * height <= perfLimitSizeTotal) {\n        if (width < min) {\n          dims.width = min;\n        }\n        if (height < min) {\n          dims.height = min;\n        }\n        return dims;\n      }\n      var ar = width / height, limitedDims = fabric.util.limitDimsByArea(ar, perfLimitSizeTotal),\n          capValue = fabric.util.capValue,\n          x = capValue(min, limitedDims.x, max),\n          y = capValue(min, limitedDims.y, max);\n      if (width > x) {\n        dims.zoomX /= width / x;\n        dims.width = x;\n        dims.capped = true;\n      }\n      if (height > y) {\n        dims.zoomY /= height / y;\n        dims.height = y;\n        dims.capped = true;\n      }\n      return dims;\n    },\n\n    /**\n     * Return the dimension and the zoom level needed to create a cache canvas\n     * big enough to host the object to be cached.\n     * @private\n     * @return {Object}.x width of object to be cached\n     * @return {Object}.y height of object to be cached\n     * @return {Object}.width width of canvas\n     * @return {Object}.height height of canvas\n     * @return {Object}.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @return {Object}.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     */\n    _getCacheCanvasDimensions: function() {\n      var objectScale = this.getTotalObjectScaling(),\n          // caculate dimensions without skewing\n          dim = this._getTransformedDimensions(0, 0),\n          neededX = dim.x * objectScale.scaleX / this.scaleX,\n          neededY = dim.y * objectScale.scaleY / this.scaleY;\n      return {\n        // for sure this ALIASING_LIMIT is slightly creating problem\n        // in situation in which the cache canvas gets an upper limit\n        // also objectScale contains already scaleX and scaleY\n        width: neededX + ALIASING_LIMIT,\n        height: neededY + ALIASING_LIMIT,\n        zoomX: objectScale.scaleX,\n        zoomY: objectScale.scaleY,\n        x: neededX,\n        y: neededY\n      };\n    },\n\n    /**\n     * Update width and height of the canvas for cache\n     * returns true or false if canvas needed resize.\n     * @private\n     * @return {Boolean} true if the canvas has been resized\n     */\n    _updateCacheCanvas: function() {\n      var targetCanvas = this.canvas;\n      if (this.noScaleCache && targetCanvas && targetCanvas._currentTransform) {\n        var target = targetCanvas._currentTransform.target,\n            action = targetCanvas._currentTransform.action;\n        if (this === target && action.slice && action.slice(0, 5) === 'scale') {\n          return false;\n        }\n      }\n      var canvas = this._cacheCanvas,\n          dims = this._limitCacheSize(this._getCacheCanvasDimensions()),\n          minCacheSize = fabric.minCacheSideLimit,\n          width = dims.width, height = dims.height, drawingWidth, drawingHeight,\n          zoomX = dims.zoomX, zoomY = dims.zoomY,\n          dimensionsChanged = width !== this.cacheWidth || height !== this.cacheHeight,\n          zoomChanged = this.zoomX !== zoomX || this.zoomY !== zoomY,\n          shouldRedraw = dimensionsChanged || zoomChanged,\n          additionalWidth = 0, additionalHeight = 0, shouldResizeCanvas = false;\n      if (dimensionsChanged) {\n        var canvasWidth = this._cacheCanvas.width,\n            canvasHeight = this._cacheCanvas.height,\n            sizeGrowing = width > canvasWidth || height > canvasHeight,\n            sizeShrinking = (width < canvasWidth * 0.9 || height < canvasHeight * 0.9) &&\n              canvasWidth > minCacheSize && canvasHeight > minCacheSize;\n        shouldResizeCanvas = sizeGrowing || sizeShrinking;\n        if (sizeGrowing && !dims.capped && (width > minCacheSize || height > minCacheSize)) {\n          additionalWidth = width * 0.1;\n          additionalHeight = height * 0.1;\n        }\n      }\n      if (shouldRedraw) {\n        if (shouldResizeCanvas) {\n          canvas.width = Math.ceil(width + additionalWidth);\n          canvas.height = Math.ceil(height + additionalHeight);\n        }\n        else {\n          this._cacheContext.setTransform(1, 0, 0, 1, 0, 0);\n          this._cacheContext.clearRect(0, 0, canvas.width, canvas.height);\n        }\n        drawingWidth = dims.x / 2;\n        drawingHeight = dims.y / 2;\n        this.cacheTranslationX = Math.round(canvas.width / 2 - drawingWidth) + drawingWidth;\n        this.cacheTranslationY = Math.round(canvas.height / 2 - drawingHeight) + drawingHeight;\n        this.cacheWidth = width;\n        this.cacheHeight = height;\n        this._cacheContext.translate(this.cacheTranslationX, this.cacheTranslationY);\n        this._cacheContext.scale(zoomX, zoomY);\n        this.zoomX = zoomX;\n        this.zoomY = zoomY;\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Sets object's properties from options\n     * @param {Object} [options] Options object\n     */\n    setOptions: function(options) {\n      this._setOptions(options);\n      this._initGradient(options.fill, 'fill');\n      this._initGradient(options.stroke, 'stroke');\n      this._initClipping(options);\n      this._initPattern(options.fill, 'fill');\n      this._initPattern(options.stroke, 'stroke');\n    },\n\n    /**\n     * Transforms context when rendering an object\n     * @param {CanvasRenderingContext2D} ctx Context\n     */\n    transform: function(ctx) {\n      var m;\n      if (this.group && !this.group._transformDone) {\n        m = this.calcTransformMatrix();\n      }\n      else {\n        m = this.calcOwnMatrix();\n      }\n      ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n    },\n\n    /**\n     * Returns an object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS,\n\n          object = {\n            type:                     this.type,\n            version:                  fabric.version,\n            originX:                  this.originX,\n            originY:                  this.originY,\n            left:                     toFixed(this.left, NUM_FRACTION_DIGITS),\n            top:                      toFixed(this.top, NUM_FRACTION_DIGITS),\n            width:                    toFixed(this.width, NUM_FRACTION_DIGITS),\n            height:                   toFixed(this.height, NUM_FRACTION_DIGITS),\n            fill:                     (this.fill && this.fill.toObject) ? this.fill.toObject() : this.fill,\n            stroke:                   (this.stroke && this.stroke.toObject) ? this.stroke.toObject() : this.stroke,\n            strokeWidth:              toFixed(this.strokeWidth, NUM_FRACTION_DIGITS),\n            strokeDashArray:          this.strokeDashArray ? this.strokeDashArray.concat() : this.strokeDashArray,\n            strokeLineCap:            this.strokeLineCap,\n            strokeDashOffset:         this.strokeDashOffset,\n            strokeLineJoin:           this.strokeLineJoin,\n            // TODO: add this before release\n            // strokeUniform:            this.strokeUniform,\n            strokeMiterLimit:         toFixed(this.strokeMiterLimit, NUM_FRACTION_DIGITS),\n            scaleX:                   toFixed(this.scaleX, NUM_FRACTION_DIGITS),\n            scaleY:                   toFixed(this.scaleY, NUM_FRACTION_DIGITS),\n            angle:                    toFixed(this.angle, NUM_FRACTION_DIGITS),\n            flipX:                    this.flipX,\n            flipY:                    this.flipY,\n            opacity:                  toFixed(this.opacity, NUM_FRACTION_DIGITS),\n            shadow:                   (this.shadow && this.shadow.toObject) ? this.shadow.toObject() : this.shadow,\n            visible:                  this.visible,\n            clipTo:                   this.clipTo && String(this.clipTo),\n            backgroundColor:          this.backgroundColor,\n            fillRule:                 this.fillRule,\n            paintFirst:               this.paintFirst,\n            globalCompositeOperation: this.globalCompositeOperation,\n            transformMatrix:          this.transformMatrix ? this.transformMatrix.concat() : null,\n            skewX:                    toFixed(this.skewX, NUM_FRACTION_DIGITS),\n            skewY:                    toFixed(this.skewY, NUM_FRACTION_DIGITS),\n          };\n\n      if (this.clipPath) {\n        object.clipPath = this.clipPath.toObject(propertiesToInclude);\n        object.clipPath.inverted = this.clipPath.inverted;\n        object.clipPath.absolutePositioned = this.clipPath.absolutePositioned;\n      }\n\n      fabric.util.populateWithProperties(this, object, propertiesToInclude);\n      if (!this.includeDefaultValues) {\n        object = this._removeDefaultValues(object);\n      }\n\n      return object;\n    },\n\n    /**\n     * Returns (dataless) object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toDatalessObject: function(propertiesToInclude) {\n      // will be overwritten by subclasses\n      return this.toObject(propertiesToInclude);\n    },\n\n    /**\n     * @private\n     * @param {Object} object\n     */\n    _removeDefaultValues: function(object) {\n      var prototype = fabric.util.getKlass(object.type).prototype,\n          stateProperties = prototype.stateProperties;\n      stateProperties.forEach(function(prop) {\n        if (prop === 'left' || prop === 'top') {\n          return;\n        }\n        if (object[prop] === prototype[prop]) {\n          delete object[prop];\n        }\n        var isArray = Object.prototype.toString.call(object[prop]) === '[object Array]' &&\n                      Object.prototype.toString.call(prototype[prop]) === '[object Array]';\n\n        // basically a check for [] === []\n        if (isArray && object[prop].length === 0 && prototype[prop].length === 0) {\n          delete object[prop];\n        }\n      });\n\n      return object;\n    },\n\n    /**\n     * Returns a string representation of an instance\n     * @return {String}\n     */\n    toString: function() {\n      return '#<fabric.' + capitalize(this.type) + '>';\n    },\n\n    /**\n     * Return the object scale factor counting also the group scaling\n     * @return {Object} object with scaleX and scaleY properties\n     */\n    getObjectScaling: function() {\n      var options = fabric.util.qrDecompose(this.calcTransformMatrix());\n      return { scaleX: Math.abs(options.scaleX), scaleY: Math.abs(options.scaleY) };\n    },\n\n    /**\n     * Return the object scale factor counting also the group scaling, zoom and retina\n     * @return {Object} object with scaleX and scaleY properties\n     */\n    getTotalObjectScaling: function() {\n      var scale = this.getObjectScaling(), scaleX = scale.scaleX, scaleY = scale.scaleY;\n      if (this.canvas) {\n        var zoom = this.canvas.getZoom();\n        var retina = this.canvas.getRetinaScaling();\n        scaleX *= zoom * retina;\n        scaleY *= zoom * retina;\n      }\n      return { scaleX: scaleX, scaleY: scaleY };\n    },\n\n    /**\n     * Return the object opacity counting also the group property\n     * @return {Number}\n     */\n    getObjectOpacity: function() {\n      var opacity = this.opacity;\n      if (this.group) {\n        opacity *= this.group.getObjectOpacity();\n      }\n      return opacity;\n    },\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     * @return {fabric.Object} thisArg\n     */\n    _set: function(key, value) {\n      var shouldConstrainValue = (key === 'scaleX' || key === 'scaleY'),\n          isChanged = this[key] !== value, groupNeedsUpdate = false;\n\n      if (shouldConstrainValue) {\n        value = this._constrainScale(value);\n      }\n      if (key === 'scaleX' && value < 0) {\n        this.flipX = !this.flipX;\n        value *= -1;\n      }\n      else if (key === 'scaleY' && value < 0) {\n        this.flipY = !this.flipY;\n        value *= -1;\n      }\n      else if (key === 'shadow' && value && !(value instanceof fabric.Shadow)) {\n        value = new fabric.Shadow(value);\n      }\n      else if (key === 'dirty' && this.group) {\n        this.group.set('dirty', value);\n      }\n\n      this[key] = value;\n\n      if (isChanged) {\n        groupNeedsUpdate = this.group && this.group.isOnACache();\n        if (this.cacheProperties.indexOf(key) > -1) {\n          this.dirty = true;\n          groupNeedsUpdate && this.group.set('dirty', true);\n        }\n        else if (groupNeedsUpdate && this.stateProperties.indexOf(key) > -1) {\n          this.group.set('dirty', true);\n        }\n      }\n\n      return this;\n    },\n\n    /**\n     * This callback function is called by the parent group of an object every\n     * time a non-delegated property changes on the group. It is passed the key\n     * and value as parameters. Not adding in this function's signature to avoid\n     * Travis build error about unused variables.\n     */\n    setOnGroup: function() {\n      // implemented by sub-classes, as needed.\n    },\n\n    /**\n     * Retrieves viewportTransform from Object's canvas if possible\n     * @method getViewportTransform\n     * @memberOf fabric.Object.prototype\n     * @return {Array}\n     */\n    getViewportTransform: function() {\n      if (this.canvas && this.canvas.viewportTransform) {\n        return this.canvas.viewportTransform;\n      }\n      return fabric.iMatrix.concat();\n    },\n\n    /*\n     * @private\n     * return if the object would be visible in rendering\n     * @memberOf fabric.Object.prototype\n     * @return {Boolean}\n     */\n    isNotVisible: function() {\n      return this.opacity === 0 ||\n        (this.width === 0 && this.height === 0 && this.strokeWidth === 0) ||\n        !this.visible;\n    },\n\n    /**\n     * Renders an object on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    render: function(ctx) {\n      // do not render if width/height are zeros or object is not visible\n      if (this.isNotVisible()) {\n        return;\n      }\n      if (this.canvas && this.canvas.skipOffscreen && !this.group && !this.isOnScreen()) {\n        return;\n      }\n      ctx.save();\n      this._setupCompositeOperation(ctx);\n      this.drawSelectionBackground(ctx);\n      this.transform(ctx);\n      this._setOpacity(ctx);\n      this._setShadow(ctx, this);\n      if (this.transformMatrix) {\n        ctx.transform.apply(ctx, this.transformMatrix);\n      }\n      this.clipTo && fabric.util.clipContext(this, ctx);\n      if (this.shouldCache()) {\n        this.renderCache();\n        this.drawCacheOnCanvas(ctx);\n      }\n      else {\n        this._removeCacheCanvas();\n        this.dirty = false;\n        this.drawObject(ctx);\n        if (this.objectCaching && this.statefullCache) {\n          this.saveState({ propertySet: 'cacheProperties' });\n        }\n      }\n      this.clipTo && ctx.restore();\n      ctx.restore();\n    },\n\n    renderCache: function(options) {\n      options = options || {};\n      if (!this._cacheCanvas) {\n        this._createCacheCanvas();\n      }\n      if (this.isCacheDirty()) {\n        this.statefullCache && this.saveState({ propertySet: 'cacheProperties' });\n        this.drawObject(this._cacheContext, options.forClipping);\n        this.dirty = false;\n      }\n    },\n\n    /**\n     * Remove cacheCanvas and its dimensions from the objects\n     */\n    _removeCacheCanvas: function() {\n      this._cacheCanvas = null;\n      this.cacheWidth = 0;\n      this.cacheHeight = 0;\n    },\n\n    /**\n     * return true if the object will draw a stroke\n     * Does not consider text styles. This is just a shortcut used at rendering time\n     * We want it to be an aproximation and be fast.\n     * wrote to avoid extra caching, it has to return true when stroke happens,\n     * can guess when it will not happen at 100% chance, does not matter if it misses\n     * some use case where the stroke is invisible.\n     * @since 3.0.0\n     * @returns Boolean\n     */\n    hasStroke: function() {\n      return this.stroke && this.stroke !== 'transparent' && this.strokeWidth !== 0;\n    },\n\n    /**\n     * return true if the object will draw a fill\n     * Does not consider text styles. This is just a shortcut used at rendering time\n     * We want it to be an aproximation and be fast.\n     * wrote to avoid extra caching, it has to return true when fill happens,\n     * can guess when it will not happen at 100% chance, does not matter if it misses\n     * some use case where the fill is invisible.\n     * @since 3.0.0\n     * @returns Boolean\n     */\n    hasFill: function() {\n      return this.fill && this.fill !== 'transparent';\n    },\n\n    /**\n     * When set to `true`, force the object to have its own cache, even if it is inside a group\n     * it may be needed when your object behave in a particular way on the cache and always needs\n     * its own isolated canvas to render correctly.\n     * Created to be overridden\n     * since 1.7.12\n     * @returns Boolean\n     */\n    needsItsOwnCache: function() {\n      if (this.paintFirst === 'stroke' &&\n        this.hasFill() && this.hasStroke() && typeof this.shadow === 'object') {\n        return true;\n      }\n      if (this.clipPath) {\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * objectCaching is a global flag, wins over everything\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group outside is cached.\n     * Read as: cache if is needed, or if the feature is enabled but we are not already caching.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      this.ownCaching = this.needsItsOwnCache() || (\n        this.objectCaching &&\n        (!this.group || !this.group.isOnACache())\n      );\n      return this.ownCaching;\n    },\n\n    /**\n     * Check if this object or a child object will cast a shadow\n     * used by Group.shouldCache to know if child has a shadow recursively\n     * @return {Boolean}\n     */\n    willDrawShadow: function() {\n      return !!this.shadow && (this.shadow.offsetX !== 0 || this.shadow.offsetY !== 0);\n    },\n\n    /**\n     * Execute the drawing operation for an object clipPath\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawClipPathOnCache: function(ctx) {\n      var path = this.clipPath;\n      ctx.save();\n      // DEBUG: uncomment this line, comment the following\n      // ctx.globalAlpha = 0.4\n      if (path.inverted) {\n        ctx.globalCompositeOperation = 'destination-out';\n      }\n      else {\n        ctx.globalCompositeOperation = 'destination-in';\n      }\n      //ctx.scale(1 / 2, 1 / 2);\n      if (path.absolutePositioned) {\n        var m = fabric.util.invertTransform(this.calcTransformMatrix());\n        ctx.transform(m[0], m[1], m[2], m[3], m[4], m[5]);\n      }\n      path.transform(ctx);\n      ctx.scale(1 / path.zoomX, 1 / path.zoomY);\n      ctx.drawImage(path._cacheCanvas, -path.cacheTranslationX, -path.cacheTranslationY);\n      ctx.restore();\n    },\n\n    /**\n     * Execute the drawing operation for an object on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawObject: function(ctx, forClipping) {\n      var originalFill = this.fill, originalStroke = this.stroke;\n      if (forClipping) {\n        this.fill = 'black';\n        this.stroke = '';\n        this._setClippingProperties(ctx);\n      }\n      else {\n        this._renderBackground(ctx);\n        this._setStrokeStyles(ctx, this);\n        this._setFillStyles(ctx, this);\n      }\n      this._render(ctx);\n      this._drawClipPath(ctx);\n      this.fill = originalFill;\n      this.stroke = originalStroke;\n    },\n\n    _drawClipPath: function(ctx) {\n      var path = this.clipPath;\n      if (!path) { return; }\n      // needed to setup a couple of variables\n      // path canvas gets overridden with this one.\n      // TODO find a better solution?\n      path.canvas = this.canvas;\n      path.shouldCache();\n      path._transformDone = true;\n      path.renderCache({ forClipping: true });\n      this.drawClipPathOnCache(ctx);\n    },\n\n    /**\n     * Paint the cached copy of the object on the target context.\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawCacheOnCanvas: function(ctx) {\n      ctx.scale(1 / this.zoomX, 1 / this.zoomY);\n      ctx.drawImage(this._cacheCanvas, -this.cacheTranslationX, -this.cacheTranslationY);\n    },\n\n    /**\n     * Check if cache is dirty\n     * @param {Boolean} skipCanvas skip canvas checks because this object is painted\n     * on parent canvas.\n     */\n    isCacheDirty: function(skipCanvas) {\n      if (this.isNotVisible()) {\n        return false;\n      }\n      if (this._cacheCanvas && !skipCanvas && this._updateCacheCanvas()) {\n        // in this case the context is already cleared.\n        return true;\n      }\n      else {\n        if (this.dirty ||\n          (this.clipPath && this.clipPath.absolutePositioned) ||\n          (this.statefullCache && this.hasStateChanged('cacheProperties'))\n        ) {\n          if (this._cacheCanvas && !skipCanvas) {\n            var width = this.cacheWidth / this.zoomX;\n            var height = this.cacheHeight / this.zoomY;\n            this._cacheContext.clearRect(-width / 2, -height / 2, width, height);\n          }\n          return true;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Draws a background for the object big as its untransformed dimensions\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderBackground: function(ctx) {\n      if (!this.backgroundColor) {\n        return;\n      }\n      var dim = this._getNonTransformedDimensions();\n      ctx.fillStyle = this.backgroundColor;\n\n      ctx.fillRect(\n        -dim.x / 2,\n        -dim.y / 2,\n        dim.x,\n        dim.y\n      );\n      // if there is background color no other shadows\n      // should be casted\n      this._removeShadow(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _setOpacity: function(ctx) {\n      if (this.group && !this.group._transformDone) {\n        ctx.globalAlpha = this.getObjectOpacity();\n      }\n      else {\n        ctx.globalAlpha *= this.opacity;\n      }\n    },\n\n    _setStrokeStyles: function(ctx, decl) {\n      if (decl.stroke) {\n        ctx.lineWidth = decl.strokeWidth;\n        ctx.lineCap = decl.strokeLineCap;\n        ctx.lineDashOffset = decl.strokeDashOffset;\n        ctx.lineJoin = decl.strokeLineJoin;\n        ctx.miterLimit = decl.strokeMiterLimit;\n        ctx.strokeStyle = decl.stroke.toLive\n          ? decl.stroke.toLive(ctx, this)\n          : decl.stroke;\n      }\n    },\n\n    _setFillStyles: function(ctx, decl) {\n      if (decl.fill) {\n        ctx.fillStyle = decl.fill.toLive\n          ? decl.fill.toLive(ctx, this)\n          : decl.fill;\n      }\n    },\n\n    _setClippingProperties: function(ctx) {\n      ctx.globalAlpha = 1;\n      ctx.strokeStyle = 'transparent';\n      ctx.fillStyle = '#000000';\n    },\n\n    /**\n     * @private\n     * Sets line dash\n     * @param {CanvasRenderingContext2D} ctx Context to set the dash line on\n     * @param {Array} dashArray array representing dashes\n     * @param {Function} alternative function to call if browser does not support lineDash\n     */\n    _setLineDash: function(ctx, dashArray, alternative) {\n      if (!dashArray || dashArray.length === 0) {\n        return;\n      }\n      // Spec requires the concatenation of two copies the dash list when the number of elements is odd\n      if (1 & dashArray.length) {\n        dashArray.push.apply(dashArray, dashArray);\n      }\n      if (supportsLineDash) {\n        ctx.setLineDash(dashArray);\n      }\n      else {\n        alternative && alternative(ctx);\n      }\n    },\n\n    /**\n     * Renders controls and borders for the object\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} [styleOverride] properties to override the object style\n     */\n    _renderControls: function(ctx, styleOverride) {\n      var vpt = this.getViewportTransform(),\n          matrix = this.calcTransformMatrix(),\n          options, drawBorders, drawControls;\n      styleOverride = styleOverride || { };\n      drawBorders = typeof styleOverride.hasBorders !== 'undefined' ? styleOverride.hasBorders : this.hasBorders;\n      drawControls = typeof styleOverride.hasControls !== 'undefined' ? styleOverride.hasControls : this.hasControls;\n      matrix = fabric.util.multiplyTransformMatrices(vpt, matrix);\n      options = fabric.util.qrDecompose(matrix);\n      ctx.save();\n      ctx.translate(options.translateX, options.translateY);\n      ctx.lineWidth = 1 * this.borderScaleFactor;\n      if (!this.group) {\n        ctx.globalAlpha = this.isMoving ? this.borderOpacityWhenMoving : 1;\n      }\n      if (styleOverride.forActiveSelection) {\n        ctx.rotate(degreesToRadians(options.angle));\n        drawBorders && this.drawBordersInGroup(ctx, options, styleOverride);\n      }\n      else {\n        ctx.rotate(degreesToRadians(this.angle));\n        drawBorders && this.drawBorders(ctx, styleOverride);\n      }\n      drawControls && this.drawControls(ctx, styleOverride);\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _setShadow: function(ctx) {\n      if (!this.shadow) {\n        return;\n      }\n\n      var shadow = this.shadow, canvas = this.canvas, scaling,\n          multX = (canvas && canvas.viewportTransform[0]) || 1,\n          multY = (canvas && canvas.viewportTransform[3]) || 1;\n      if (shadow.nonScaling) {\n        scaling = { scaleX: 1, scaleY: 1 };\n      }\n      else {\n        scaling = this.getObjectScaling();\n      }\n      if (canvas && canvas._isRetinaScaling()) {\n        multX *= fabric.devicePixelRatio;\n        multY *= fabric.devicePixelRatio;\n      }\n      ctx.shadowColor = shadow.color;\n      ctx.shadowBlur = shadow.blur * fabric.browserShadowBlurConstant *\n        (multX + multY) * (scaling.scaleX + scaling.scaleY) / 4;\n      ctx.shadowOffsetX = shadow.offsetX * multX * scaling.scaleX;\n      ctx.shadowOffsetY = shadow.offsetY * multY * scaling.scaleY;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _removeShadow: function(ctx) {\n      if (!this.shadow) {\n        return;\n      }\n\n      ctx.shadowColor = '';\n      ctx.shadowBlur = ctx.shadowOffsetX = ctx.shadowOffsetY = 0;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} filler fabric.Pattern or fabric.Gradient\n     * @return {Object} offset.offsetX offset for text rendering\n     * @return {Object} offset.offsetY offset for text rendering\n     */\n    _applyPatternGradientTransform: function(ctx, filler) {\n      if (!filler || !filler.toLive) {\n        return { offsetX: 0, offsetY: 0 };\n      }\n      var t = filler.gradientTransform || filler.patternTransform;\n      var offsetX = -this.width / 2 + filler.offsetX || 0,\n          offsetY = -this.height / 2 + filler.offsetY || 0;\n\n      if (filler.gradientUnits === 'percentage') {\n        ctx.transform(this.width, 0, 0, this.height, offsetX, offsetY);\n      }\n      else {\n        ctx.transform(1, 0, 0, 1, offsetX, offsetY);\n      }\n      if (t) {\n        ctx.transform(t[0], t[1], t[2], t[3], t[4], t[5]);\n      }\n      return { offsetX: offsetX, offsetY: offsetY };\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderPaintInOrder: function(ctx) {\n      if (this.paintFirst === 'stroke') {\n        this._renderStroke(ctx);\n        this._renderFill(ctx);\n      }\n      else {\n        this._renderFill(ctx);\n        this._renderStroke(ctx);\n      }\n    },\n\n    /**\n     * @private\n     * function that actually render something on the context.\n     * empty here to allow Obects to work on tests to benchmark fabric functionalites\n     * not related to rendering\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(/* ctx */) {\n\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderFill: function(ctx) {\n      if (!this.fill) {\n        return;\n      }\n\n      ctx.save();\n      this._applyPatternGradientTransform(ctx, this.fill);\n      if (this.fillRule === 'evenodd') {\n        ctx.fill('evenodd');\n      }\n      else {\n        ctx.fill();\n      }\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderStroke: function(ctx) {\n      if (!this.stroke || this.strokeWidth === 0) {\n        return;\n      }\n\n      if (this.shadow && !this.shadow.affectStroke) {\n        this._removeShadow(ctx);\n      }\n\n      ctx.save();\n      if (this.strokeUniform && this.group) {\n        var scaling = this.getObjectScaling();\n        ctx.scale(1 / scaling.scaleX, 1 / scaling.scaleY);\n      }\n      else if (this.strokeUniform) {\n        ctx.scale(1 / this.scaleX, 1 / this.scaleY);\n      }\n      this._setLineDash(ctx, this.strokeDashArray, this._renderDashedStroke);\n      if (this.stroke.toLive && this.stroke.gradientUnits === 'percentage') {\n        // need to transform gradient in a pattern.\n        // this is a slow process. If you are hitting this codepath, and the object\n        // is not using caching, you should consider switching it on.\n        // we need a canvas as big as the current object caching canvas.\n        this._applyPatternForTransformedGradient(ctx, this.stroke);\n      }\n      else {\n        this._applyPatternGradientTransform(ctx, this.stroke);\n      }\n      ctx.stroke();\n      ctx.restore();\n    },\n\n    /**\n     * This function try to patch the missing gradientTransform on canvas gradients.\n     * transforming a context to transform the gradient, is going to transform the stroke too.\n     * we want to transform the gradient but not the stroke operation, so we create\n     * a transformed gradient on a pattern and then we use the pattern instead of the gradient.\n     * this method has drwabacks: is slow, is in low resolution, needs a patch for when the size\n     * is limited.\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {fabric.Gradient} filler a fabric gradient instance\n     */\n    _applyPatternForTransformedGradient: function(ctx, filler) {\n      var dims = this._limitCacheSize(this._getCacheCanvasDimensions()),\n          pCanvas = fabric.util.createCanvasElement(), pCtx, retinaScaling = this.canvas.getRetinaScaling(),\n          width = dims.x / this.scaleX / retinaScaling, height = dims.y / this.scaleY / retinaScaling;\n      pCanvas.width = width;\n      pCanvas.height = height;\n      pCtx = pCanvas.getContext('2d');\n      pCtx.beginPath(); pCtx.moveTo(0, 0); pCtx.lineTo(width, 0); pCtx.lineTo(width, height);\n      pCtx.lineTo(0, height); pCtx.closePath();\n      pCtx.translate(width / 2, height / 2);\n      pCtx.scale(\n        dims.zoomX / this.scaleX / retinaScaling,\n        dims.zoomY / this.scaleY / retinaScaling\n      );\n      this._applyPatternGradientTransform(pCtx, filler);\n      pCtx.fillStyle = filler.toLive(ctx);\n      pCtx.fill();\n      ctx.translate(-this.width / 2 - this.strokeWidth / 2, -this.height / 2 - this.strokeWidth / 2);\n      ctx.scale(\n        retinaScaling * this.scaleX / dims.zoomX,\n        retinaScaling * this.scaleY / dims.zoomY\n      );\n      ctx.strokeStyle = pCtx.createPattern(pCanvas, 'no-repeat');\n    },\n\n    /**\n     * This function is an helper for svg import. it returns the center of the object in the svg\n     * untransformed coordinates\n     * @private\n     * @return {Object} center point from element coordinates\n     */\n    _findCenterFromElement: function() {\n      return { x: this.left + this.width / 2, y: this.top + this.height / 2 };\n    },\n\n    /**\n     * This function is an helper for svg import. it decompose the transformMatrix\n     * and assign properties to object.\n     * untransformed coordinates\n     * @private\n     * @chainable\n     */\n    _assignTransformMatrixProps: function() {\n      if (this.transformMatrix) {\n        var options = fabric.util.qrDecompose(this.transformMatrix);\n        this.flipX = false;\n        this.flipY = false;\n        this.set('scaleX', options.scaleX);\n        this.set('scaleY', options.scaleY);\n        this.angle = options.angle;\n        this.skewX = options.skewX;\n        this.skewY = 0;\n      }\n    },\n\n    /**\n     * This function is an helper for svg import. it removes the transform matrix\n     * and set to object properties that fabricjs can handle\n     * @private\n     * @param {Object} preserveAspectRatioOptions\n     * @return {thisArg}\n     */\n    _removeTransformMatrix: function(preserveAspectRatioOptions) {\n      var center = this._findCenterFromElement();\n      if (this.transformMatrix) {\n        this._assignTransformMatrixProps();\n        center = fabric.util.transformPoint(center, this.transformMatrix);\n      }\n      this.transformMatrix = null;\n      if (preserveAspectRatioOptions) {\n        this.scaleX *= preserveAspectRatioOptions.scaleX;\n        this.scaleY *= preserveAspectRatioOptions.scaleY;\n        this.cropX = preserveAspectRatioOptions.cropX;\n        this.cropY = preserveAspectRatioOptions.cropY;\n        center.x += preserveAspectRatioOptions.offsetLeft;\n        center.y += preserveAspectRatioOptions.offsetTop;\n        this.width = preserveAspectRatioOptions.width;\n        this.height = preserveAspectRatioOptions.height;\n      }\n      this.setPositionByOrigin(center, 'center', 'center');\n    },\n\n    /**\n     * Clones an instance, using a callback method will work for every object.\n     * @param {Function} callback Callback is invoked with a clone as a first argument\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     */\n    clone: function(callback, propertiesToInclude) {\n      var objectForm = this.toObject(propertiesToInclude);\n      if (this.constructor.fromObject) {\n        this.constructor.fromObject(objectForm, callback);\n      }\n      else {\n        fabric.Object._fromObject('Object', objectForm, callback);\n      }\n    },\n\n    /**\n     * Creates an instance of fabric.Image out of an object\n     * could make use of both toDataUrl or toCanvasElement.\n     * @param {Function} callback callback, invoked with an instance as a first argument\n     * @param {Object} [options] for clone as image, passed to toDataURL\n     * @param {String} [options.format=png] The format of the output image. Either \"jpeg\" or \"png\"\n     * @param {Number} [options.quality=1] Quality level (0..1). Only used for jpeg.\n     * @param {Number} [options.multiplier=1] Multiplier to scale by\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 1.6.4\n     * @param {Boolean} [options.withoutTransform] Remove current object transform ( no scale , no angle, no flip, no skew ). Introduced in 2.3.4\n     * @param {Boolean} [options.withoutShadow] Remove current object shadow. Introduced in 2.4.2\n     * @return {fabric.Object} thisArg\n     */\n    cloneAsImage: function(callback, options) {\n      var canvasEl = this.toCanvasElement(options);\n      if (callback) {\n        callback(new fabric.Image(canvasEl));\n      }\n      return this;\n    },\n\n    /**\n     * Converts an object into a HTMLCanvas element\n     * @param {Object} options Options object\n     * @param {Number} [options.multiplier=1] Multiplier to scale by\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 1.6.4\n     * @param {Boolean} [options.withoutTransform] Remove current object transform ( no scale , no angle, no flip, no skew ). Introduced in 2.3.4\n     * @param {Boolean} [options.withoutShadow] Remove current object shadow. Introduced in 2.4.2\n     * @return {HTMLCanvasElement} Returns DOM element <canvas> with the fabric.Object\n     */\n    toCanvasElement: function(options) {\n      options || (options = { });\n\n      var utils = fabric.util, origParams = utils.saveObjectTransform(this),\n          originalGroup = this.group,\n          originalShadow = this.shadow, abs = Math.abs,\n          multiplier = (options.multiplier || 1) * (options.enableRetinaScaling ? fabric.devicePixelRatio : 1);\n      delete this.group;\n      if (options.withoutTransform) {\n        utils.resetObjectTransform(this);\n      }\n      if (options.withoutShadow) {\n        this.shadow = null;\n      }\n\n      var el = fabric.util.createCanvasElement(),\n          // skip canvas zoom and calculate with setCoords now.\n          boundingRect = this.getBoundingRect(true, true),\n          shadow = this.shadow, scaling,\n          shadowOffset = { x: 0, y: 0 }, shadowBlur,\n          width, height;\n\n      if (shadow) {\n        shadowBlur = shadow.blur;\n        if (shadow.nonScaling) {\n          scaling = { scaleX: 1, scaleY: 1 };\n        }\n        else {\n          scaling = this.getObjectScaling();\n        }\n        // consider non scaling shadow.\n        shadowOffset.x = 2 * Math.round(abs(shadow.offsetX) + shadowBlur) * (abs(scaling.scaleX));\n        shadowOffset.y = 2 * Math.round(abs(shadow.offsetY) + shadowBlur) * (abs(scaling.scaleY));\n      }\n      width = boundingRect.width + shadowOffset.x;\n      height = boundingRect.height + shadowOffset.y;\n      // if the current width/height is not an integer\n      // we need to make it so.\n      el.width = Math.ceil(width);\n      el.height = Math.ceil(height);\n      var canvas = new fabric.StaticCanvas(el, {\n        enableRetinaScaling: false,\n        renderOnAddRemove: false,\n        skipOffscreen: false,\n      });\n      if (options.format === 'jpeg') {\n        canvas.backgroundColor = '#fff';\n      }\n      this.setPositionByOrigin(new fabric.Point(canvas.width / 2, canvas.height / 2), 'center', 'center');\n\n      var originalCanvas = this.canvas;\n      canvas.add(this);\n      var canvasEl = canvas.toCanvasElement(multiplier || 1, options);\n      this.shadow = originalShadow;\n      this.set('canvas', originalCanvas);\n      if (originalGroup) {\n        this.group = originalGroup;\n      }\n      this.set(origParams).setCoords();\n      // canvas.dispose will call image.dispose that will nullify the elements\n      // since this canvas is a simple element for the process, we remove references\n      // to objects in this way in order to avoid object trashing.\n      canvas._objects = [];\n      canvas.dispose();\n      canvas = null;\n\n      return canvasEl;\n    },\n\n    /**\n     * Converts an object into a data-url-like string\n     * @param {Object} options Options object\n     * @param {String} [options.format=png] The format of the output image. Either \"jpeg\" or \"png\"\n     * @param {Number} [options.quality=1] Quality level (0..1). Only used for jpeg.\n     * @param {Number} [options.multiplier=1] Multiplier to scale by\n     * @param {Number} [options.left] Cropping left offset. Introduced in v1.2.14\n     * @param {Number} [options.top] Cropping top offset. Introduced in v1.2.14\n     * @param {Number} [options.width] Cropping width. Introduced in v1.2.14\n     * @param {Number} [options.height] Cropping height. Introduced in v1.2.14\n     * @param {Boolean} [options.enableRetinaScaling] Enable retina scaling for clone image. Introduce in 1.6.4\n     * @param {Boolean} [options.withoutTransform] Remove current object transform ( no scale , no angle, no flip, no skew ). Introduced in 2.3.4\n     * @param {Boolean} [options.withoutShadow] Remove current object shadow. Introduced in 2.4.2\n     * @return {String} Returns a data: URL containing a representation of the object in the format specified by options.format\n     */\n    toDataURL: function(options) {\n      options || (options = { });\n      return fabric.util.toDataURL(this.toCanvasElement(options), options.format || 'png', options.quality || 1);\n    },\n\n    /**\n     * Returns true if specified type is identical to the type of an instance\n     * @param {String} type Type to check against\n     * @return {Boolean}\n     */\n    isType: function(type) {\n      return this.type === type;\n    },\n\n    /**\n     * Returns complexity of an instance\n     * @return {Number} complexity of this instance (is 1 unless subclassed)\n     */\n    complexity: function() {\n      return 1;\n    },\n\n    /**\n     * Returns a JSON representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} JSON\n     */\n    toJSON: function(propertiesToInclude) {\n      // delegate, not alias\n      return this.toObject(propertiesToInclude);\n    },\n\n    /**\n     * Sets gradient (fill or stroke) of an object\n     * percentages for x1,x2,y1,y2,r1,r2 together with gradientUnits 'pixels', are not supported.\n     * <b>Backwards incompatibility note:</b> This method was named \"setGradientFill\" until v1.1.0\n     * @param {String} property Property name 'stroke' or 'fill'\n     * @param {Object} [options] Options object\n     * @param {String} [options.type] Type of gradient 'radial' or 'linear'\n     * @param {Number} [options.x1=0] x-coordinate of start point\n     * @param {Number} [options.y1=0] y-coordinate of start point\n     * @param {Number} [options.x2=0] x-coordinate of end point\n     * @param {Number} [options.y2=0] y-coordinate of end point\n     * @param {Number} [options.r1=0] Radius of start point (only for radial gradients)\n     * @param {Number} [options.r2=0] Radius of end point (only for radial gradients)\n     * @param {Object} [options.colorStops] Color stops object eg. {0: 'ff0000', 1: '000000'}\n     * @param {Object} [options.gradientTransform] transformMatrix for gradient\n     * @return {fabric.Object} thisArg\n     * @chainable\n     * @deprecated since 3.4.0\n     * @see {@link http://jsfiddle.net/fabricjs/58y8b/|jsFiddle demo}\n     * @example <caption>Set linear gradient</caption>\n     * object.setGradient('fill', {\n     *   type: 'linear',\n     *   x1: -object.width / 2,\n     *   y1: 0,\n     *   x2: object.width / 2,\n     *   y2: 0,\n     *   colorStops: {\n     *     0: 'red',\n     *     0.5: '#005555',\n     *     1: 'rgba(0,0,255,0.5)'\n     *   }\n     * });\n     * canvas.renderAll();\n     * @example <caption>Set radial gradient</caption>\n     * object.setGradient('fill', {\n     *   type: 'radial',\n     *   x1: 0,\n     *   y1: 0,\n     *   x2: 0,\n     *   y2: 0,\n     *   r1: object.width / 2,\n     *   r2: 10,\n     *   colorStops: {\n     *     0: 'red',\n     *     0.5: '#005555',\n     *     1: 'rgba(0,0,255,0.5)'\n     *   }\n     * });\n     * canvas.renderAll();\n     */\n    setGradient: function(property, options) {\n      options || (options = { });\n\n      var gradient = { colorStops: [] };\n\n      gradient.type = options.type || (options.r1 || options.r2 ? 'radial' : 'linear');\n      gradient.coords = {\n        x1: options.x1,\n        y1: options.y1,\n        x2: options.x2,\n        y2: options.y2\n      };\n      gradient.gradientUnits = options.gradientUnits || 'pixels';\n      if (options.r1 || options.r2) {\n        gradient.coords.r1 = options.r1;\n        gradient.coords.r2 = options.r2;\n      }\n\n      gradient.gradientTransform = options.gradientTransform;\n      fabric.Gradient.prototype.addColorStop.call(gradient, options.colorStops);\n\n      return this.set(property, fabric.Gradient.forObject(this, gradient));\n    },\n\n    /**\n     * Sets pattern fill of an object\n     * @param {Object} options Options object\n     * @param {(String|HTMLImageElement)} options.source Pattern source\n     * @param {String} [options.repeat=repeat] Repeat property of a pattern (one of repeat, repeat-x, repeat-y or no-repeat)\n     * @param {Number} [options.offsetX=0] Pattern horizontal offset from object's left/top corner\n     * @param {Number} [options.offsetY=0] Pattern vertical offset from object's left/top corner\n     * @param {Function} [callback] Callback to invoke when image set as a pattern\n     * @return {fabric.Object} thisArg\n     * @chainable\n     * @deprecated since 3.5.0\n     * @see {@link http://jsfiddle.net/fabricjs/QT3pa/|jsFiddle demo}\n     * @example <caption>Set pattern</caption>\n     * object.setPatternFill({\n     *   source: 'http://fabricjs.com/assets/escheresque_ste.png',\n     *   repeat: 'repeat'\n     * },canvas.renderAll.bind(canvas));\n     */\n    setPatternFill: function(options, callback) {\n      return this.set('fill', new fabric.Pattern(options, callback));\n    },\n\n    /**\n     * Sets {@link fabric.Object#shadow|shadow} of an object\n     * @param {Object|String} [options] Options object or string (e.g. \"2px 2px 10px rgba(0,0,0,0.2)\")\n     * @param {String} [options.color=rgb(0,0,0)] Shadow color\n     * @param {Number} [options.blur=0] Shadow blur\n     * @param {Number} [options.offsetX=0] Shadow horizontal offset\n     * @param {Number} [options.offsetY=0] Shadow vertical offset\n     * @return {fabric.Object} thisArg\n     * @chainable\n     * @deprecated since 3.5.0\n     * @see {@link http://jsfiddle.net/fabricjs/7gvJG/|jsFiddle demo}\n     * @example <caption>Set shadow with string notation</caption>\n     * object.setShadow('2px 2px 10px rgba(0,0,0,0.2)');\n     * canvas.renderAll();\n     * @example <caption>Set shadow with object notation</caption>\n     * object.setShadow({\n     *   color: 'red',\n     *   blur: 10,\n     *   offsetX: 20,\n     *   offsetY: 20\n     * });\n     * canvas.renderAll();\n     */\n    setShadow: function(options) {\n      return this.set('shadow', options ? new fabric.Shadow(options) : null);\n    },\n\n    /**\n     * Sets \"color\" of an instance (alias of `set('fill', &hellip;)`)\n     * @param {String} color Color value\n     * @return {fabric.Object} thisArg\n     * @deprecated since 3.5.0\n     * @chainable\n     */\n    setColor: function(color) {\n      this.set('fill', color);\n      return this;\n    },\n\n    /**\n     * Sets \"angle\" of an instance with centered rotation\n     * @param {Number} angle Angle value (in degrees)\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    rotate: function(angle) {\n      var shouldCenterOrigin = (this.originX !== 'center' || this.originY !== 'center') && this.centeredRotation;\n\n      if (shouldCenterOrigin) {\n        this._setOriginToCenter();\n      }\n\n      this.set('angle', angle);\n\n      if (shouldCenterOrigin) {\n        this._resetOrigin();\n      }\n\n      return this;\n    },\n\n    /**\n     * Centers object horizontally on canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    centerH: function () {\n      this.canvas && this.canvas.centerObjectH(this);\n      return this;\n    },\n\n    /**\n     * Centers object horizontally on current viewport of canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    viewportCenterH: function () {\n      this.canvas && this.canvas.viewportCenterObjectH(this);\n      return this;\n    },\n\n    /**\n     * Centers object vertically on canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    centerV: function () {\n      this.canvas && this.canvas.centerObjectV(this);\n      return this;\n    },\n\n    /**\n     * Centers object vertically on current viewport of canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    viewportCenterV: function () {\n      this.canvas && this.canvas.viewportCenterObjectV(this);\n      return this;\n    },\n\n    /**\n     * Centers object vertically and horizontally on canvas to which is was added last\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    center: function () {\n      this.canvas && this.canvas.centerObject(this);\n      return this;\n    },\n\n    /**\n     * Centers object on current viewport of canvas to which it was added last.\n     * You might need to call `setCoords` on an object after centering, to update controls area.\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    viewportCenter: function () {\n      this.canvas && this.canvas.viewportCenterObject(this);\n      return this;\n    },\n\n    /**\n     * Returns coordinates of a pointer relative to an object\n     * @param {Event} e Event to operate upon\n     * @param {Object} [pointer] Pointer to operate upon (instead of event)\n     * @return {Object} Coordinates of a pointer (x, y)\n     */\n    getLocalPointer: function(e, pointer) {\n      pointer = pointer || this.canvas.getPointer(e);\n      var pClicked = new fabric.Point(pointer.x, pointer.y),\n          objectLeftTop = this._getLeftTopCoords();\n      if (this.angle) {\n        pClicked = fabric.util.rotatePoint(\n          pClicked, objectLeftTop, degreesToRadians(-this.angle));\n      }\n      return {\n        x: pClicked.x - objectLeftTop.x,\n        y: pClicked.y - objectLeftTop.y\n      };\n    },\n\n    /**\n     * Sets canvas globalCompositeOperation for specific object\n     * custom composition operation for the particular object can be specified using globalCompositeOperation property\n     * @param {CanvasRenderingContext2D} ctx Rendering canvas context\n     */\n    _setupCompositeOperation: function (ctx) {\n      if (this.globalCompositeOperation) {\n        ctx.globalCompositeOperation = this.globalCompositeOperation;\n      }\n    }\n  });\n\n  fabric.util.createAccessors && fabric.util.createAccessors(fabric.Object);\n\n  extend(fabric.Object.prototype, fabric.Observable);\n\n  /**\n   * Defines the number of fraction digits to use when serializing object values.\n   * You can use it to increase/decrease precision of such values like left, top, scaleX, scaleY, etc.\n   * @static\n   * @memberOf fabric.Object\n   * @constant\n   * @type Number\n   */\n  fabric.Object.NUM_FRACTION_DIGITS = 2;\n\n  fabric.Object._fromObject = function(className, object, callback, extraParam) {\n    var klass = fabric[className];\n    object = clone(object, true);\n    fabric.util.enlivenPatterns([object.fill, object.stroke], function(patterns) {\n      if (typeof patterns[0] !== 'undefined') {\n        object.fill = patterns[0];\n      }\n      if (typeof patterns[1] !== 'undefined') {\n        object.stroke = patterns[1];\n      }\n      fabric.util.enlivenObjects([object.clipPath], function(enlivedProps) {\n        object.clipPath = enlivedProps[0];\n        var instance = extraParam ? new klass(object[extraParam], object) : new klass(object);\n        callback && callback(instance);\n      });\n    });\n  };\n\n  /**\n   * Unique id used internally when creating SVG elements\n   * @static\n   * @memberOf fabric.Object\n   * @type Number\n   */\n  fabric.Object.__uid = 0;\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n\n  var degreesToRadians = fabric.util.degreesToRadians,\n      originXOffset = {\n        left: -0.5,\n        center: 0,\n        right: 0.5\n      },\n      originYOffset = {\n        top: -0.5,\n        center: 0,\n        bottom: 0.5\n      };\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Translates the coordinates from a set of origin to another (based on the object's dimensions)\n     * @param {fabric.Point} point The point which corresponds to the originX and originY params\n     * @param {String} fromOriginX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} fromOriginY Vertical origin: 'top', 'center' or 'bottom'\n     * @param {String} toOriginX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} toOriginY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    translateToGivenOrigin: function(point, fromOriginX, fromOriginY, toOriginX, toOriginY) {\n      var x = point.x,\n          y = point.y,\n          offsetX, offsetY, dim;\n\n      if (typeof fromOriginX === 'string') {\n        fromOriginX = originXOffset[fromOriginX];\n      }\n      else {\n        fromOriginX -= 0.5;\n      }\n\n      if (typeof toOriginX === 'string') {\n        toOriginX = originXOffset[toOriginX];\n      }\n      else {\n        toOriginX -= 0.5;\n      }\n\n      offsetX = toOriginX - fromOriginX;\n\n      if (typeof fromOriginY === 'string') {\n        fromOriginY = originYOffset[fromOriginY];\n      }\n      else {\n        fromOriginY -= 0.5;\n      }\n\n      if (typeof toOriginY === 'string') {\n        toOriginY = originYOffset[toOriginY];\n      }\n      else {\n        toOriginY -= 0.5;\n      }\n\n      offsetY = toOriginY - fromOriginY;\n\n      if (offsetX || offsetY) {\n        dim = this._getTransformedDimensions();\n        x = point.x + offsetX * dim.x;\n        y = point.y + offsetY * dim.y;\n      }\n\n      return new fabric.Point(x, y);\n    },\n\n    /**\n     * Translates the coordinates from origin to center coordinates (based on the object's dimensions)\n     * @param {fabric.Point} point The point which corresponds to the originX and originY params\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    translateToCenterPoint: function(point, originX, originY) {\n      var p = this.translateToGivenOrigin(point, originX, originY, 'center', 'center');\n      if (this.angle) {\n        return fabric.util.rotatePoint(p, point, degreesToRadians(this.angle));\n      }\n      return p;\n    },\n\n    /**\n     * Translates the coordinates from center to origin coordinates (based on the object's dimensions)\n     * @param {fabric.Point} center The point which corresponds to center of the object\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    translateToOriginPoint: function(center, originX, originY) {\n      var p = this.translateToGivenOrigin(center, 'center', 'center', originX, originY);\n      if (this.angle) {\n        return fabric.util.rotatePoint(p, center, degreesToRadians(this.angle));\n      }\n      return p;\n    },\n\n    /**\n     * Returns the real center coordinates of the object\n     * @return {fabric.Point}\n     */\n    getCenterPoint: function() {\n      var leftTop = new fabric.Point(this.left, this.top);\n      return this.translateToCenterPoint(leftTop, this.originX, this.originY);\n    },\n\n    /**\n     * Returns the coordinates of the object based on center coordinates\n     * @param {fabric.Point} point The point which corresponds to the originX and originY params\n     * @return {fabric.Point}\n     */\n    // getOriginPoint: function(center) {\n    //   return this.translateToOriginPoint(center, this.originX, this.originY);\n    // },\n\n    /**\n     * Returns the coordinates of the object as if it has a different origin\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    getPointByOrigin: function(originX, originY) {\n      var center = this.getCenterPoint();\n      return this.translateToOriginPoint(center, originX, originY);\n    },\n\n    /**\n     * Returns the point in local coordinates\n     * @param {fabric.Point} point The point relative to the global coordinate system\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {fabric.Point}\n     */\n    toLocalPoint: function(point, originX, originY) {\n      var center = this.getCenterPoint(),\n          p, p2;\n\n      if (typeof originX !== 'undefined' && typeof originY !== 'undefined' ) {\n        p = this.translateToGivenOrigin(center, 'center', 'center', originX, originY);\n      }\n      else {\n        p = new fabric.Point(this.left, this.top);\n      }\n\n      p2 = new fabric.Point(point.x, point.y);\n      if (this.angle) {\n        p2 = fabric.util.rotatePoint(p2, center, -degreesToRadians(this.angle));\n      }\n      return p2.subtractEquals(p);\n    },\n\n    /**\n     * Returns the point in global coordinates\n     * @param {fabric.Point} The point relative to the local coordinate system\n     * @return {fabric.Point}\n     */\n    // toGlobalPoint: function(point) {\n    //   return fabric.util.rotatePoint(point, this.getCenterPoint(), degreesToRadians(this.angle)).addEquals(new fabric.Point(this.left, this.top));\n    // },\n\n    /**\n     * Sets the position of the object taking into consideration the object's origin\n     * @param {fabric.Point} pos The new position of the object\n     * @param {String} originX Horizontal origin: 'left', 'center' or 'right'\n     * @param {String} originY Vertical origin: 'top', 'center' or 'bottom'\n     * @return {void}\n     */\n    setPositionByOrigin: function(pos, originX, originY) {\n      var center = this.translateToCenterPoint(pos, originX, originY),\n          position = this.translateToOriginPoint(center, this.originX, this.originY);\n      this.set('left', position.x);\n      this.set('top', position.y);\n    },\n\n    /**\n     * @param {String} to One of 'left', 'center', 'right'\n     */\n    adjustPosition: function(to) {\n      var angle = degreesToRadians(this.angle),\n          hypotFull = this.getScaledWidth(),\n          xFull = fabric.util.cos(angle) * hypotFull,\n          yFull = fabric.util.sin(angle) * hypotFull,\n          offsetFrom, offsetTo;\n\n      //TODO: this function does not consider mixed situation like top, center.\n      if (typeof this.originX === 'string') {\n        offsetFrom = originXOffset[this.originX];\n      }\n      else {\n        offsetFrom = this.originX - 0.5;\n      }\n      if (typeof to === 'string') {\n        offsetTo = originXOffset[to];\n      }\n      else {\n        offsetTo = to - 0.5;\n      }\n      this.left += xFull * (offsetTo - offsetFrom);\n      this.top += yFull * (offsetTo - offsetFrom);\n      this.setCoords();\n      this.originX = to;\n    },\n\n    /**\n     * Sets the origin/position of the object to it's center point\n     * @private\n     * @return {void}\n     */\n    _setOriginToCenter: function() {\n      this._originalOriginX = this.originX;\n      this._originalOriginY = this.originY;\n\n      var center = this.getCenterPoint();\n\n      this.originX = 'center';\n      this.originY = 'center';\n\n      this.left = center.x;\n      this.top = center.y;\n    },\n\n    /**\n     * Resets the origin/position of the object to it's original origin\n     * @private\n     * @return {void}\n     */\n    _resetOrigin: function() {\n      var originPoint = this.translateToOriginPoint(\n        this.getCenterPoint(),\n        this._originalOriginX,\n        this._originalOriginY);\n\n      this.originX = this._originalOriginX;\n      this.originY = this._originalOriginY;\n\n      this.left = originPoint.x;\n      this.top = originPoint.y;\n\n      this._originalOriginX = null;\n      this._originalOriginY = null;\n    },\n\n    /**\n     * @private\n     */\n    _getLeftTopCoords: function() {\n      return this.translateToOriginPoint(this.getCenterPoint(), 'left', 'top');\n    },\n  });\n\n})();\n\n\n(function() {\n\n  function getCoords(coords) {\n    return [\n      new fabric.Point(coords.tl.x, coords.tl.y),\n      new fabric.Point(coords.tr.x, coords.tr.y),\n      new fabric.Point(coords.br.x, coords.br.y),\n      new fabric.Point(coords.bl.x, coords.bl.y)\n    ];\n  }\n\n  var degreesToRadians = fabric.util.degreesToRadians,\n      multiplyMatrices = fabric.util.multiplyTransformMatrices,\n      transformPoint = fabric.util.transformPoint;\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Describe object's corner position in canvas element coordinates.\n     * properties are tl,mt,tr,ml,mr,bl,mb,br,mtr for the main controls.\n     * each property is an object with x, y and corner.\n     * The `corner` property contains in a similar manner the 4 points of the\n     * interactive area of the corner.\n     * The coordinates depends from this properties: width, height, scaleX, scaleY\n     * skewX, skewY, angle, strokeWidth, viewportTransform, top, left, padding.\n     * The coordinates get updated with @method setCoords.\n     * You can calculate them without updating with @method calcCoords;\n     * @memberOf fabric.Object.prototype\n     */\n    oCoords: null,\n\n    /**\n     * Describe object's corner position in canvas object absolute coordinates\n     * properties are tl,tr,bl,br and describe the four main corner.\n     * each property is an object with x, y, instance of Fabric.Point.\n     * The coordinates depends from this properties: width, height, scaleX, scaleY\n     * skewX, skewY, angle, strokeWidth, top, left.\n     * Those coordinates are useful to understand where an object is. They get updated\n     * with oCoords but they do not need to be updated when zoom or panning change.\n     * The coordinates get updated with @method setCoords.\n     * You can calculate them without updating with @method calcCoords(true);\n     * @memberOf fabric.Object.prototype\n     */\n    aCoords: null,\n\n    /**\n     * storage for object transform matrix\n     */\n    ownMatrixCache: null,\n\n    /**\n     * storage for object full transform matrix\n     */\n    matrixCache: null,\n\n    /**\n     * return correct set of coordinates for intersection\n     */\n    getCoords: function(absolute, calculate) {\n      if (!this.oCoords) {\n        this.setCoords();\n      }\n      var coords = absolute ? this.aCoords : this.oCoords;\n      return getCoords(calculate ? this.calcCoords(absolute) : coords);\n    },\n\n    /**\n     * Checks if object intersects with an area formed by 2 points\n     * @param {Object} pointTL top-left point of area\n     * @param {Object} pointBR bottom-right point of area\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object intersects with an area formed by 2 points\n     */\n    intersectsWithRect: function(pointTL, pointBR, absolute, calculate) {\n      var coords = this.getCoords(absolute, calculate),\n          intersection = fabric.Intersection.intersectPolygonRectangle(\n            coords,\n            pointTL,\n            pointBR\n          );\n      return intersection.status === 'Intersection';\n    },\n\n    /**\n     * Checks if object intersects with another object\n     * @param {Object} other Object to test\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object intersects with another object\n     */\n    intersectsWithObject: function(other, absolute, calculate) {\n      var intersection = fabric.Intersection.intersectPolygonPolygon(\n        this.getCoords(absolute, calculate),\n        other.getCoords(absolute, calculate)\n      );\n\n      return intersection.status === 'Intersection'\n        || other.isContainedWithinObject(this, absolute, calculate)\n        || this.isContainedWithinObject(other, absolute, calculate);\n    },\n\n    /**\n     * Checks if object is fully contained within area of another object\n     * @param {Object} other Object to test\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object is fully contained within area of another object\n     */\n    isContainedWithinObject: function(other, absolute, calculate) {\n      var points = this.getCoords(absolute, calculate),\n          i = 0, lines = other._getImageLines(\n            calculate ? other.calcCoords(absolute) : absolute ? other.aCoords : other.oCoords\n          );\n      for (; i < 4; i++) {\n        if (!other.containsPoint(points[i], lines)) {\n          return false;\n        }\n      }\n      return true;\n    },\n\n    /**\n     * Checks if object is fully contained within area formed by 2 points\n     * @param {Object} pointTL top-left point of area\n     * @param {Object} pointBR bottom-right point of area\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object is fully contained within area formed by 2 points\n     */\n    isContainedWithinRect: function(pointTL, pointBR, absolute, calculate) {\n      var boundingRect = this.getBoundingRect(absolute, calculate);\n\n      return (\n        boundingRect.left >= pointTL.x &&\n        boundingRect.left + boundingRect.width <= pointBR.x &&\n        boundingRect.top >= pointTL.y &&\n        boundingRect.top + boundingRect.height <= pointBR.y\n      );\n    },\n\n    /**\n     * Checks if point is inside the object\n     * @param {fabric.Point} point Point to check against\n     * @param {Object} [lines] object returned from @method _getImageLines\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if point is inside the object\n     */\n    containsPoint: function(point, lines, absolute, calculate) {\n      var lines = lines || this._getImageLines(\n            calculate ? this.calcCoords(absolute) : absolute ? this.aCoords : this.oCoords\n          ),\n          xPoints = this._findCrossPoints(point, lines);\n\n      // if xPoints is odd then point is inside the object\n      return (xPoints !== 0 && xPoints % 2 === 1);\n    },\n\n    /**\n     * Checks if object is contained within the canvas with current viewportTransform\n     * the check is done stopping at first point that appears on screen\n     * @param {Boolean} [calculate] use coordinates of current position instead of .aCoords\n     * @return {Boolean} true if object is fully or partially contained within canvas\n     */\n    isOnScreen: function(calculate) {\n      if (!this.canvas) {\n        return false;\n      }\n      var pointTL = this.canvas.vptCoords.tl, pointBR = this.canvas.vptCoords.br;\n      var points = this.getCoords(true, calculate), point;\n      for (var i = 0; i < 4; i++) {\n        point = points[i];\n        if (point.x <= pointBR.x && point.x >= pointTL.x && point.y <= pointBR.y && point.y >= pointTL.y) {\n          return true;\n        }\n      }\n      // no points on screen, check intersection with absolute coordinates\n      if (this.intersectsWithRect(pointTL, pointBR, true, calculate)) {\n        return true;\n      }\n      return this._containsCenterOfCanvas(pointTL, pointBR, calculate);\n    },\n\n    /**\n     * Checks if the object contains the midpoint between canvas extremities\n     * Does not make sense outside the context of isOnScreen and isPartiallyOnScreen\n     * @private\n     * @param {Fabric.Point} pointTL Top Left point\n     * @param {Fabric.Point} pointBR Top Right point\n     * @param {Boolean} calculate use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if the object contains the point\n     */\n    _containsCenterOfCanvas: function(pointTL, pointBR, calculate) {\n      // worst case scenario the object is so big that contains the screen\n      var centerPoint = { x: (pointTL.x + pointBR.x) / 2, y: (pointTL.y + pointBR.y) / 2 };\n      if (this.containsPoint(centerPoint, null, true, calculate)) {\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Checks if object is partially contained within the canvas with current viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords\n     * @return {Boolean} true if object is partially contained within canvas\n     */\n    isPartiallyOnScreen: function(calculate) {\n      if (!this.canvas) {\n        return false;\n      }\n      var pointTL = this.canvas.vptCoords.tl, pointBR = this.canvas.vptCoords.br;\n      if (this.intersectsWithRect(pointTL, pointBR, true, calculate)) {\n        return true;\n      }\n      return this._containsCenterOfCanvas(pointTL, pointBR, calculate);\n    },\n\n    /**\n     * Method that returns an object with the object edges in it, given the coordinates of the corners\n     * @private\n     * @param {Object} oCoords Coordinates of the object corners\n     */\n    _getImageLines: function(oCoords) {\n      return {\n        topline: {\n          o: oCoords.tl,\n          d: oCoords.tr\n        },\n        rightline: {\n          o: oCoords.tr,\n          d: oCoords.br\n        },\n        bottomline: {\n          o: oCoords.br,\n          d: oCoords.bl\n        },\n        leftline: {\n          o: oCoords.bl,\n          d: oCoords.tl\n        }\n      };\n    },\n\n    /**\n     * Helper method to determine how many cross points are between the 4 object edges\n     * and the horizontal line determined by a point on canvas\n     * @private\n     * @param {fabric.Point} point Point to check\n     * @param {Object} lines Coordinates of the object being evaluated\n     */\n    // remove yi, not used but left code here just in case.\n    _findCrossPoints: function(point, lines) {\n      var b1, b2, a1, a2, xi, // yi,\n          xcount = 0,\n          iLine;\n\n      for (var lineKey in lines) {\n        iLine = lines[lineKey];\n        // optimisation 1: line below point. no cross\n        if ((iLine.o.y < point.y) && (iLine.d.y < point.y)) {\n          continue;\n        }\n        // optimisation 2: line above point. no cross\n        if ((iLine.o.y >= point.y) && (iLine.d.y >= point.y)) {\n          continue;\n        }\n        // optimisation 3: vertical line case\n        if ((iLine.o.x === iLine.d.x) && (iLine.o.x >= point.x)) {\n          xi = iLine.o.x;\n          // yi = point.y;\n        }\n        // calculate the intersection point\n        else {\n          b1 = 0;\n          b2 = (iLine.d.y - iLine.o.y) / (iLine.d.x - iLine.o.x);\n          a1 = point.y - b1 * point.x;\n          a2 = iLine.o.y - b2 * iLine.o.x;\n\n          xi = -(a1 - a2) / (b1 - b2);\n          // yi = a1 + b1 * xi;\n        }\n        // dont count xi < point.x cases\n        if (xi >= point.x) {\n          xcount += 1;\n        }\n        // optimisation 4: specific for square images\n        if (xcount === 2) {\n          break;\n        }\n      }\n      return xcount;\n    },\n\n    /**\n     * Returns coordinates of object's bounding rectangle (left, top, width, height)\n     * the box is intended as aligned to axis of canvas.\n     * @param {Boolean} [absolute] use coordinates without viewportTransform\n     * @param {Boolean} [calculate] use coordinates of current position instead of .oCoords / .aCoords\n     * @return {Object} Object with left, top, width, height properties\n     */\n    getBoundingRect: function(absolute, calculate) {\n      var coords = this.getCoords(absolute, calculate);\n      return fabric.util.makeBoundingBoxFromPoints(coords);\n    },\n\n    /**\n     * Returns width of an object's bounding box counting transformations\n     * before 2.0 it was named getWidth();\n     * @return {Number} width value\n     */\n    getScaledWidth: function() {\n      return this._getTransformedDimensions().x;\n    },\n\n    /**\n     * Returns height of an object bounding box counting transformations\n     * before 2.0 it was named getHeight();\n     * @return {Number} height value\n     */\n    getScaledHeight: function() {\n      return this._getTransformedDimensions().y;\n    },\n\n    /**\n     * Makes sure the scale is valid and modifies it if necessary\n     * @private\n     * @param {Number} value\n     * @return {Number}\n     */\n    _constrainScale: function(value) {\n      if (Math.abs(value) < this.minScaleLimit) {\n        if (value < 0) {\n          return -this.minScaleLimit;\n        }\n        else {\n          return this.minScaleLimit;\n        }\n      }\n      else if (value === 0) {\n        return 0.0001;\n      }\n      return value;\n    },\n\n    /**\n     * Scales an object (equally by x and y)\n     * @param {Number} value Scale factor\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    scale: function(value) {\n      this._set('scaleX', value);\n      this._set('scaleY', value);\n      return this.setCoords();\n    },\n\n    /**\n     * Scales an object to a given width, with respect to bounding box (scaling by x/y equally)\n     * @param {Number} value New width value\n     * @param {Boolean} absolute ignore viewport\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    scaleToWidth: function(value, absolute) {\n      // adjust to bounding rect factor so that rotated shapes would fit as well\n      var boundingRectFactor = this.getBoundingRect(absolute).width / this.getScaledWidth();\n      return this.scale(value / this.width / boundingRectFactor);\n    },\n\n    /**\n     * Scales an object to a given height, with respect to bounding box (scaling by x/y equally)\n     * @param {Number} value New height value\n     * @param {Boolean} absolute ignore viewport\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    scaleToHeight: function(value, absolute) {\n      // adjust to bounding rect factor so that rotated shapes would fit as well\n      var boundingRectFactor = this.getBoundingRect(absolute).height / this.getScaledHeight();\n      return this.scale(value / this.height / boundingRectFactor);\n    },\n\n    /**\n     * Calculates and returns the .coords of an object.\n     * @return {Object} Object with tl, tr, br, bl ....\n     * @chainable\n     */\n    calcCoords: function(absolute) {\n      var rotateMatrix = this._calcRotateMatrix(),\n          translateMatrix = this._calcTranslateMatrix(),\n          startMatrix = multiplyMatrices(translateMatrix, rotateMatrix),\n          vpt = this.getViewportTransform(),\n          finalMatrix = absolute ? startMatrix : multiplyMatrices(vpt, startMatrix),\n          dim = this._getTransformedDimensions(),\n          w = dim.x / 2, h = dim.y / 2,\n          tl = transformPoint({ x: -w, y: -h }, finalMatrix),\n          tr = transformPoint({ x: w, y: -h }, finalMatrix),\n          bl = transformPoint({ x: -w, y: h }, finalMatrix),\n          br = transformPoint({ x: w, y: h }, finalMatrix);\n      if (!absolute) {\n        var padding = this.padding, angle = degreesToRadians(this.angle),\n            cos = fabric.util.cos(angle), sin = fabric.util.sin(angle),\n            cosP = cos * padding, sinP = sin * padding, cosPSinP = cosP + sinP,\n            cosPMinusSinP = cosP - sinP;\n        if (padding) {\n          tl.x -= cosPMinusSinP;\n          tl.y -= cosPSinP;\n          tr.x += cosPSinP;\n          tr.y -= cosPMinusSinP;\n          bl.x -= cosPSinP;\n          bl.y += cosPMinusSinP;\n          br.x += cosPMinusSinP;\n          br.y += cosPSinP;\n        }\n        var ml  = new fabric.Point((tl.x + bl.x) / 2, (tl.y + bl.y) / 2),\n            mt  = new fabric.Point((tr.x + tl.x) / 2, (tr.y + tl.y) / 2),\n            mr  = new fabric.Point((br.x + tr.x) / 2, (br.y + tr.y) / 2),\n            mb  = new fabric.Point((br.x + bl.x) / 2, (br.y + bl.y) / 2),\n            mtr = new fabric.Point(mt.x + sin * this.rotatingPointOffset, mt.y - cos * this.rotatingPointOffset);\n      }\n\n      // if (!absolute) {\n      //   var canvas = this.canvas;\n      //   setTimeout(function() {\n      //     canvas.contextTop.clearRect(0, 0, 700, 700);\n      //     canvas.contextTop.fillStyle = 'green';\n      //     canvas.contextTop.fillRect(mb.x, mb.y, 3, 3);\n      //     canvas.contextTop.fillRect(bl.x, bl.y, 3, 3);\n      //     canvas.contextTop.fillRect(br.x, br.y, 3, 3);\n      //     canvas.contextTop.fillRect(tl.x, tl.y, 3, 3);\n      //     canvas.contextTop.fillRect(tr.x, tr.y, 3, 3);\n      //     canvas.contextTop.fillRect(ml.x, ml.y, 3, 3);\n      //     canvas.contextTop.fillRect(mr.x, mr.y, 3, 3);\n      //     canvas.contextTop.fillRect(mt.x, mt.y, 3, 3);\n      //     canvas.contextTop.fillRect(mtr.x, mtr.y, 3, 3);\n      //   }, 50);\n      // }\n\n      var coords = {\n        // corners\n        tl: tl, tr: tr, br: br, bl: bl,\n      };\n      if (!absolute) {\n        // middle\n        coords.ml = ml;\n        coords.mt = mt;\n        coords.mr = mr;\n        coords.mb = mb;\n        // rotating point\n        coords.mtr = mtr;\n      }\n      return coords;\n    },\n\n    /**\n     * Sets corner position coordinates based on current angle, width and height.\n     * See {@link https://github.com/kangax/fabric.js/wiki/When-to-call-setCoords|When-to-call-setCoords}\n     * @param {Boolean} [ignoreZoom] set oCoords with or without the viewport transform.\n     * @param {Boolean} [skipAbsolute] skip calculation of aCoords, useful in setViewportTransform\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    setCoords: function(ignoreZoom, skipAbsolute) {\n      this.oCoords = this.calcCoords(ignoreZoom);\n      if (!skipAbsolute) {\n        this.aCoords = this.calcCoords(true);\n      }\n\n      // set coordinates of the draggable boxes in the corners used to scale/rotate the image\n      ignoreZoom || (this._setCornerCoords && this._setCornerCoords());\n\n      return this;\n    },\n\n    /**\n     * calculate rotation matrix of an object\n     * @return {Array} rotation matrix for the object\n     */\n    _calcRotateMatrix: function() {\n      return fabric.util.calcRotateMatrix(this);\n    },\n\n    /**\n     * calculate the translation matrix for an object transform\n     * @return {Array} rotation matrix for the object\n     */\n    _calcTranslateMatrix: function() {\n      var center = this.getCenterPoint();\n      return [1, 0, 0, 1, center.x, center.y];\n    },\n\n    transformMatrixKey: function(skipGroup) {\n      var sep = '_', prefix = '';\n      if (!skipGroup && this.group) {\n        prefix = this.group.transformMatrixKey(skipGroup) + sep;\n      };\n      return prefix + this.top + sep + this.left + sep + this.scaleX + sep + this.scaleY +\n        sep + this.skewX + sep + this.skewY + sep + this.angle + sep + this.originX + sep + this.originY +\n        sep + this.width + sep + this.height + sep + this.strokeWidth + this.flipX + this.flipY;\n    },\n\n    /**\n     * calculate transform matrix that represents the current transformations from the\n     * object's properties.\n     * @param {Boolean} [skipGroup] return transform matrix for object not counting parent transformations\n     * @return {Array} transform matrix for the object\n     */\n    calcTransformMatrix: function(skipGroup) {\n      if (skipGroup) {\n        return this.calcOwnMatrix();\n      }\n      var key = this.transformMatrixKey(), cache = this.matrixCache || (this.matrixCache = {});\n      if (cache.key === key) {\n        return cache.value;\n      }\n      var matrix = this.calcOwnMatrix();\n      if (this.group) {\n        matrix = multiplyMatrices(this.group.calcTransformMatrix(), matrix);\n      }\n      cache.key = key;\n      cache.value = matrix;\n      return matrix;\n    },\n\n    /**\n     * calculate transform matrix that represents the current transformations from the\n     * object's properties, this matrix does not include the group transformation\n     * @return {Array} transform matrix for the object\n     */\n    calcOwnMatrix: function() {\n      var key = this.transformMatrixKey(true), cache = this.ownMatrixCache || (this.ownMatrixCache = {});\n      if (cache.key === key) {\n        return cache.value;\n      }\n      var tMatrix = this._calcTranslateMatrix();\n      this.translateX = tMatrix[4];\n      this.translateY = tMatrix[5];\n      cache.key = key;\n      cache.value = fabric.util.composeMatrix(this);\n      return cache.value;\n    },\n\n    /*\n     * Calculate object dimensions from its properties\n     * @private\n     * @deprecated since 3.4.0, please use fabric.util._calcDimensionsTransformMatrix\n     * not including or including flipX, flipY to emulate the flipping boolean\n     * @return {Object} .x width dimension\n     * @return {Object} .y height dimension\n     */\n    _calcDimensionsTransformMatrix: function(skewX, skewY, flipping) {\n      return fabric.util.calcDimensionsMatrix({\n        skewX: skewX,\n        skewY: skewY,\n        scaleX: this.scaleX * (flipping && this.flipX ? -1 : 1),\n        scaleY: this.scaleY * (flipping && this.flipY ? -1 : 1)\n      });\n    },\n\n    /*\n     * Calculate object dimensions from its properties\n     * @private\n     * @return {Object} .x width dimension\n     * @return {Object} .y height dimension\n     */\n    _getNonTransformedDimensions: function() {\n      var strokeWidth = this.strokeWidth,\n          w = this.width + strokeWidth,\n          h = this.height + strokeWidth;\n      return { x: w, y: h };\n    },\n\n    /*\n     * Calculate object bounding box dimensions from its properties scale, skew.\n     * The skewX and skewY parameters are used in the skewing logic path and\n     * do not provide something useful to common use cases.\n     * @param {Number} [skewX], a value to override current skewX\n     * @param {Number} [skewY], a value to override current skewY\n     * @private\n     * @return {Object} .x width dimension\n     * @return {Object} .y height dimension\n     */\n    _getTransformedDimensions: function(skewX, skewY) {\n      if (typeof skewX === 'undefined') {\n        skewX = this.skewX;\n      }\n      if (typeof skewY === 'undefined') {\n        skewY = this.skewY;\n      }\n      var dimensions = this._getNonTransformedDimensions(), dimX, dimY,\n          noSkew = skewX === 0 && skewY === 0;\n\n      if (this.strokeUniform) {\n        dimX = this.width;\n        dimY = this.height;\n      }\n      else {\n        dimX = dimensions.x;\n        dimY = dimensions.y;\n      }\n      if (noSkew) {\n        return this._finalizeDimensions(dimX * this.scaleX, dimY * this.scaleY);\n      }\n      else {\n        dimX /= 2;\n        dimY /= 2;\n      }\n      var points = [\n            {\n              x: -dimX,\n              y: -dimY\n            },\n            {\n              x: dimX,\n              y: -dimY\n            },\n            {\n              x: -dimX,\n              y: dimY\n            },\n            {\n              x: dimX,\n              y: dimY\n            }],\n          transformMatrix = fabric.util.calcDimensionsMatrix({\n            scaleX: this.scaleX,\n            scaleY: this.scaleY,\n            skewX: skewX,\n            skewY: skewY,\n          }),\n          bbox = fabric.util.makeBoundingBoxFromPoints(points, transformMatrix);\n      return this._finalizeDimensions(bbox.width, bbox.height);\n    },\n\n    /*\n     * Calculate object bounding box dimensions from its properties scale, skew.\n     * @param Number width width of the bbox\n     * @param Number height height of the bbox\n     * @private\n     * @return {Object} .x finalized width dimension\n     * @return {Object} .y finalized height dimension\n     */\n    _finalizeDimensions: function(width, height) {\n      return this.strokeUniform ?\n        { x: width + this.strokeWidth, y: height + this.strokeWidth }\n        :\n        { x: width, y: height };\n    },\n    /*\n     * Calculate object dimensions for controls, including padding and canvas zoom.\n     * private\n     */\n    _calculateCurrentDimensions: function()  {\n      var vpt = this.getViewportTransform(),\n          dim = this._getTransformedDimensions(),\n          p = fabric.util.transformPoint(dim, vpt, true);\n\n      return p.scalarAdd(2 * this.padding);\n    },\n  });\n})();\n\n\nfabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n  /**\n   * Moves an object to the bottom of the stack of drawn objects\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  sendToBack: function() {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.sendToBack.call(this.group, this);\n    }\n    else if (this.canvas) {\n      this.canvas.sendToBack(this);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object to the top of the stack of drawn objects\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  bringToFront: function() {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.bringToFront.call(this.group, this);\n    }\n    else if (this.canvas) {\n      this.canvas.bringToFront(this);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object down in stack of drawn objects\n   * @param {Boolean} [intersecting] If `true`, send object behind next lower intersecting object\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  sendBackwards: function(intersecting) {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.sendBackwards.call(this.group, this, intersecting);\n    }\n    else if (this.canvas) {\n      this.canvas.sendBackwards(this, intersecting);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object up in stack of drawn objects\n   * @param {Boolean} [intersecting] If `true`, send object in front of next upper intersecting object\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  bringForward: function(intersecting) {\n    if (this.group) {\n      fabric.StaticCanvas.prototype.bringForward.call(this.group, this, intersecting);\n    }\n    else if (this.canvas) {\n      this.canvas.bringForward(this, intersecting);\n    }\n    return this;\n  },\n\n  /**\n   * Moves an object to specified level in stack of drawn objects\n   * @param {Number} index New position of object\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  moveTo: function(index) {\n    if (this.group && this.group.type !== 'activeSelection') {\n      fabric.StaticCanvas.prototype.moveTo.call(this.group, this, index);\n    }\n    else if (this.canvas) {\n      this.canvas.moveTo(this, index);\n    }\n    return this;\n  }\n});\n\n\n/* _TO_SVG_START_ */\n(function() {\n  function getSvgColorString(prop, value) {\n    if (!value) {\n      return prop + ': none; ';\n    }\n    else if (value.toLive) {\n      return prop + ': url(#SVGID_' + value.id + '); ';\n    }\n    else {\n      var color = new fabric.Color(value),\n          str = prop + ': ' + color.toRgb() + '; ',\n          opacity = color.getAlpha();\n      if (opacity !== 1) {\n        //change the color in rgb + opacity\n        str += prop + '-opacity: ' + opacity.toString() + '; ';\n      }\n      return str;\n    }\n  }\n\n  var toFixed = fabric.util.toFixed;\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n    /**\n     * Returns styles-string for svg-export\n     * @param {Boolean} skipShadow a boolean to skip shadow filter output\n     * @return {String}\n     */\n    getSvgStyles: function(skipShadow) {\n\n      var fillRule = this.fillRule ? this.fillRule : 'nonzero',\n          strokeWidth = this.strokeWidth ? this.strokeWidth : '0',\n          strokeDashArray = this.strokeDashArray ? this.strokeDashArray.join(' ') : 'none',\n          strokeDashOffset = this.strokeDashOffset ? this.strokeDashOffset : '0',\n          strokeLineCap = this.strokeLineCap ? this.strokeLineCap : 'butt',\n          strokeLineJoin = this.strokeLineJoin ? this.strokeLineJoin : 'miter',\n          strokeMiterLimit = this.strokeMiterLimit ? this.strokeMiterLimit : '4',\n          opacity = typeof this.opacity !== 'undefined' ? this.opacity : '1',\n          visibility = this.visible ? '' : ' visibility: hidden;',\n          filter = skipShadow ? '' : this.getSvgFilter(),\n          fill = getSvgColorString('fill', this.fill),\n          stroke = getSvgColorString('stroke', this.stroke);\n\n      return [\n        stroke,\n        'stroke-width: ', strokeWidth, '; ',\n        'stroke-dasharray: ', strokeDashArray, '; ',\n        'stroke-linecap: ', strokeLineCap, '; ',\n        'stroke-dashoffset: ', strokeDashOffset, '; ',\n        'stroke-linejoin: ', strokeLineJoin, '; ',\n        'stroke-miterlimit: ', strokeMiterLimit, '; ',\n        fill,\n        'fill-rule: ', fillRule, '; ',\n        'opacity: ', opacity, ';',\n        filter,\n        visibility\n      ].join('');\n    },\n\n    /**\n     * Returns styles-string for svg-export\n     * @param {Object} style the object from which to retrieve style properties\n     * @param {Boolean} useWhiteSpace a boolean to include an additional attribute in the style.\n     * @return {String}\n     */\n    getSvgSpanStyles: function(style, useWhiteSpace) {\n      var term = '; ';\n      var fontFamily = style.fontFamily ?\n        'font-family: ' + (((style.fontFamily.indexOf('\\'') === -1 && style.fontFamily.indexOf('\"') === -1) ?\n          '\\'' + style.fontFamily  + '\\'' : style.fontFamily)) + term : '';\n      var strokeWidth = style.strokeWidth ? 'stroke-width: ' + style.strokeWidth + term : '',\n          fontFamily = fontFamily,\n          fontSize = style.fontSize ? 'font-size: ' + style.fontSize + 'px' + term : '',\n          fontStyle = style.fontStyle ? 'font-style: ' + style.fontStyle + term : '',\n          fontWeight = style.fontWeight ? 'font-weight: ' + style.fontWeight + term : '',\n          fill = style.fill ? getSvgColorString('fill', style.fill) : '',\n          stroke = style.stroke ? getSvgColorString('stroke', style.stroke) : '',\n          textDecoration = this.getSvgTextDecoration(style),\n          deltaY = style.deltaY ? 'baseline-shift: ' + (-style.deltaY) + '; ' : '';\n      if (textDecoration) {\n        textDecoration = 'text-decoration: ' + textDecoration + term;\n      }\n\n      return [\n        stroke,\n        strokeWidth,\n        fontFamily,\n        fontSize,\n        fontStyle,\n        fontWeight,\n        textDecoration,\n        fill,\n        deltaY,\n        useWhiteSpace ? 'white-space: pre; ' : ''\n      ].join('');\n    },\n\n    /**\n     * Returns text-decoration property for svg-export\n     * @param {Object} style the object from which to retrieve style properties\n     * @return {String}\n     */\n    getSvgTextDecoration: function(style) {\n      return ['overline', 'underline', 'line-through'].filter(function(decoration) {\n        return style[decoration.replace('-', '')];\n      }).join(' ');\n    },\n\n    /**\n     * Returns filter for svg shadow\n     * @return {String}\n     */\n    getSvgFilter: function() {\n      return this.shadow ? 'filter: url(#SVGID_' + this.shadow.id + ');' : '';\n    },\n\n    /**\n     * Returns id attribute for svg output\n     * @return {String}\n     */\n    getSvgCommons: function() {\n      return [\n        this.id ? 'id=\"' + this.id + '\" ' : '',\n        this.clipPath ? 'clip-path=\"url(#' + this.clipPath.clipPathId + ')\" ' : '',\n      ].join('');\n    },\n\n    /**\n     * Returns transform-string for svg-export\n     * @param {Boolean} use the full transform or the single object one.\n     * @return {String}\n     */\n    getSvgTransform: function(full, additionalTransform) {\n      var transform = full ? this.calcTransformMatrix() : this.calcOwnMatrix(),\n          svgTransform = 'transform=\"' + fabric.util.matrixToSVG(transform);\n      return svgTransform +\n        (additionalTransform || '') + this.getSvgTransformMatrix() + '\" ';\n    },\n\n    /**\n     * Returns transform-string for svg-export from the transform matrix of single elements\n     * @return {String}\n     */\n    getSvgTransformMatrix: function() {\n      return this.transformMatrix ? ' ' + fabric.util.matrixToSVG(this.transformMatrix) : '';\n    },\n\n    _setSVGBg: function(textBgRects) {\n      if (this.backgroundColor) {\n        var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n        textBgRects.push(\n          '\\t\\t<rect ',\n          this._getFillAttributes(this.backgroundColor),\n          ' x=\"',\n          toFixed(-this.width / 2, NUM_FRACTION_DIGITS),\n          '\" y=\"',\n          toFixed(-this.height / 2, NUM_FRACTION_DIGITS),\n          '\" width=\"',\n          toFixed(this.width, NUM_FRACTION_DIGITS),\n          '\" height=\"',\n          toFixed(this.height, NUM_FRACTION_DIGITS),\n          '\"></rect>\\n');\n      }\n    },\n\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toSVG: function(reviver) {\n      return this._createBaseSVGMarkup(this._toSVG(reviver), { reviver: reviver });\n    },\n\n    /**\n     * Returns svg clipPath representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toClipPathSVG: function(reviver) {\n      return '\\t' + this._createBaseClipPathSVGMarkup(this._toSVG(reviver), { reviver: reviver });\n    },\n\n    /**\n     * @private\n     */\n    _createBaseClipPathSVGMarkup: function(objectMarkup, options) {\n      options = options || {};\n      var reviver = options.reviver,\n          additionalTransform = options.additionalTransform || '',\n          commonPieces = [\n            this.getSvgTransform(true, additionalTransform),\n            this.getSvgCommons(),\n          ].join(''),\n          // insert commons in the markup, style and svgCommons\n          index = objectMarkup.indexOf('COMMON_PARTS');\n      objectMarkup[index] = commonPieces;\n      return reviver ? reviver(objectMarkup.join('')) : objectMarkup.join('');\n    },\n\n    /**\n     * @private\n     */\n    _createBaseSVGMarkup: function(objectMarkup, options) {\n      options = options || {};\n      var noStyle = options.noStyle,\n          reviver = options.reviver,\n          styleInfo = noStyle ? '' : 'style=\"' + this.getSvgStyles() + '\" ',\n          shadowInfo = options.withShadow ? 'style=\"' + this.getSvgFilter() + '\" ' : '',\n          clipPath = this.clipPath,\n          vectorEffect = this.strokeUniform ? 'vector-effect=\"non-scaling-stroke\" ' : '',\n          absoluteClipPath = clipPath && clipPath.absolutePositioned,\n          stroke = this.stroke, fill = this.fill, shadow = this.shadow,\n          commonPieces, markup = [], clipPathMarkup,\n          // insert commons in the markup, style and svgCommons\n          index = objectMarkup.indexOf('COMMON_PARTS'),\n          additionalTransform = options.additionalTransform;\n      if (clipPath) {\n        clipPath.clipPathId = 'CLIPPATH_' + fabric.Object.__uid++;\n        clipPathMarkup = '<clipPath id=\"' + clipPath.clipPathId + '\" >\\n' +\n          clipPath.toClipPathSVG(reviver) +\n          '</clipPath>\\n';\n      }\n      if (absoluteClipPath) {\n        markup.push(\n          '<g ', shadowInfo, this.getSvgCommons(), ' >\\n'\n        );\n      }\n      markup.push(\n        '<g ',\n        this.getSvgTransform(false),\n        !absoluteClipPath ? shadowInfo + this.getSvgCommons() : '',\n        ' >\\n'\n      );\n      commonPieces = [\n        styleInfo,\n        vectorEffect,\n        noStyle ? '' : this.addPaintOrder(), ' ',\n        additionalTransform ? 'transform=\"' + additionalTransform + '\" ' : '',\n      ].join('');\n      objectMarkup[index] = commonPieces;\n      if (fill && fill.toLive) {\n        markup.push(fill.toSVG(this));\n      }\n      if (stroke && stroke.toLive) {\n        markup.push(stroke.toSVG(this));\n      }\n      if (shadow) {\n        markup.push(shadow.toSVG(this));\n      }\n      if (clipPath) {\n        markup.push(clipPathMarkup);\n      }\n      markup.push(objectMarkup.join(''));\n      markup.push('</g>\\n');\n      absoluteClipPath && markup.push('</g>\\n');\n      return reviver ? reviver(markup.join('')) : markup.join('');\n    },\n\n    addPaintOrder: function() {\n      return this.paintFirst !== 'fill' ? ' paint-order=\"' + this.paintFirst + '\" ' : '';\n    }\n  });\n})();\n/* _TO_SVG_END_ */\n\n\n(function() {\n\n  var extend = fabric.util.object.extend,\n      originalSet = 'stateProperties';\n\n  /*\n    Depends on `stateProperties`\n  */\n  function saveProps(origin, destination, props) {\n    var tmpObj = { }, deep = true;\n    props.forEach(function(prop) {\n      tmpObj[prop] = origin[prop];\n    });\n    extend(origin[destination], tmpObj, deep);\n  }\n\n  function _isEqual(origValue, currentValue, firstPass) {\n    if (origValue === currentValue) {\n      // if the objects are identical, return\n      return true;\n    }\n    else if (Array.isArray(origValue)) {\n      if (!Array.isArray(currentValue) || origValue.length !== currentValue.length) {\n        return false;\n      }\n      for (var i = 0, len = origValue.length; i < len; i++) {\n        if (!_isEqual(origValue[i], currentValue[i])) {\n          return false;\n        }\n      }\n      return true;\n    }\n    else if (origValue && typeof origValue === 'object') {\n      var keys = Object.keys(origValue), key;\n      if (!currentValue ||\n          typeof currentValue !== 'object' ||\n          (!firstPass && keys.length !== Object.keys(currentValue).length)\n      ) {\n        return false;\n      }\n      for (var i = 0, len = keys.length; i < len; i++) {\n        key = keys[i];\n        // since clipPath is in the statefull cache list and the clipPath objects\n        // would be iterated as an object, this would lead to possible infinite recursion\n        if (key === 'canvas') {\n          continue;\n        }\n        if (!_isEqual(origValue[key], currentValue[key])) {\n          return false;\n        }\n      }\n      return true;\n    }\n  }\n\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * Returns true if object state (one of its state properties) was changed\n     * @param {String} [propertySet] optional name for the set of property we want to save\n     * @return {Boolean} true if instance' state has changed since `{@link fabric.Object#saveState}` was called\n     */\n    hasStateChanged: function(propertySet) {\n      propertySet = propertySet || originalSet;\n      var dashedPropertySet = '_' + propertySet;\n      if (Object.keys(this[dashedPropertySet]).length < this[propertySet].length) {\n        return true;\n      }\n      return !_isEqual(this[dashedPropertySet], this, true);\n    },\n\n    /**\n     * Saves state of an object\n     * @param {Object} [options] Object with additional `stateProperties` array to include when saving state\n     * @return {fabric.Object} thisArg\n     */\n    saveState: function(options) {\n      var propertySet = options && options.propertySet || originalSet,\n          destination = '_' + propertySet;\n      if (!this[destination]) {\n        return this.setupState(options);\n      }\n      saveProps(this, destination, this[propertySet]);\n      if (options && options.stateProperties) {\n        saveProps(this, destination, options.stateProperties);\n      }\n      return this;\n    },\n\n    /**\n     * Setups state of an object\n     * @param {Object} [options] Object with additional `stateProperties` array to include when saving state\n     * @return {fabric.Object} thisArg\n     */\n    setupState: function(options) {\n      options = options || { };\n      var propertySet = options.propertySet || originalSet;\n      options.propertySet = propertySet;\n      this['_' + propertySet] = { };\n      this.saveState(options);\n      return this;\n    }\n  });\n})();\n\n\n(function() {\n\n  var degreesToRadians = fabric.util.degreesToRadians;\n\n  fabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n    /**\n     * The object interactivity controls.\n     * @private\n     */\n    _controlsVisibility: null,\n\n    /**\n     * Determines which corner has been clicked\n     * @private\n     * @param {Object} pointer The pointer indicating the mouse position\n     * @return {String|Boolean} corner code (tl, tr, bl, br, etc.), or false if nothing is found\n     */\n    _findTargetCorner: function(pointer) {\n      // objects in group, anykind, are not self modificable,\n      // must not return an hovered corner.\n      if (!this.hasControls || this.group || (!this.canvas || this.canvas._activeObject !== this)) {\n        return false;\n      }\n\n      var ex = pointer.x,\n          ey = pointer.y,\n          xPoints,\n          lines;\n      this.__corner = 0;\n      for (var i in this.oCoords) {\n\n        if (!this.isControlVisible(i)) {\n          continue;\n        }\n\n        if (i === 'mtr' && !this.hasRotatingPoint) {\n          continue;\n        }\n\n        if (this.get('lockUniScaling') &&\n           (i === 'mt' || i === 'mr' || i === 'mb' || i === 'ml')) {\n          continue;\n        }\n\n        lines = this._getImageLines(this.oCoords[i].corner);\n\n        // debugging\n\n        // canvas.contextTop.fillRect(lines.bottomline.d.x, lines.bottomline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.bottomline.o.x, lines.bottomline.o.y, 2, 2);\n\n        // canvas.contextTop.fillRect(lines.leftline.d.x, lines.leftline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.leftline.o.x, lines.leftline.o.y, 2, 2);\n\n        // canvas.contextTop.fillRect(lines.topline.d.x, lines.topline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.topline.o.x, lines.topline.o.y, 2, 2);\n\n        // canvas.contextTop.fillRect(lines.rightline.d.x, lines.rightline.d.y, 2, 2);\n        // canvas.contextTop.fillRect(lines.rightline.o.x, lines.rightline.o.y, 2, 2);\n\n        xPoints = this._findCrossPoints({ x: ex, y: ey }, lines);\n        if (xPoints !== 0 && xPoints % 2 === 1) {\n          this.__corner = i;\n          return i;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Sets the coordinates of the draggable boxes in the corners of\n     * the image used to scale/rotate it.\n     * @private\n     */\n    _setCornerCoords: function() {\n      var coords = this.oCoords,\n          newTheta = degreesToRadians(45 - this.angle),\n          /* Math.sqrt(2 * Math.pow(this.cornerSize, 2)) / 2, */\n          /* 0.707106 stands for sqrt(2)/2 */\n          cornerHypotenuse = this.cornerSize * 0.707106,\n          cosHalfOffset = cornerHypotenuse * fabric.util.cos(newTheta),\n          sinHalfOffset = cornerHypotenuse * fabric.util.sin(newTheta),\n          x, y;\n\n      for (var point in coords) {\n        x = coords[point].x;\n        y = coords[point].y;\n        coords[point].corner = {\n          tl: {\n            x: x - sinHalfOffset,\n            y: y - cosHalfOffset\n          },\n          tr: {\n            x: x + cosHalfOffset,\n            y: y - sinHalfOffset\n          },\n          bl: {\n            x: x - cosHalfOffset,\n            y: y + sinHalfOffset\n          },\n          br: {\n            x: x + sinHalfOffset,\n            y: y + cosHalfOffset\n          }\n        };\n      }\n    },\n\n    /**\n     * Draws a colored layer behind the object, inside its selection borders.\n     * Requires public options: padding, selectionBackgroundColor\n     * this function is called when the context is transformed\n     * has checks to be skipped when the object is on a staticCanvas\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawSelectionBackground: function(ctx) {\n      if (!this.selectionBackgroundColor ||\n        (this.canvas && !this.canvas.interactive) ||\n        (this.canvas && this.canvas._activeObject !== this)\n      ) {\n        return this;\n      }\n      ctx.save();\n      var center = this.getCenterPoint(), wh = this._calculateCurrentDimensions(),\n          vpt = this.canvas.viewportTransform;\n      ctx.translate(center.x, center.y);\n      ctx.scale(1 / vpt[0], 1 / vpt[3]);\n      ctx.rotate(degreesToRadians(this.angle));\n      ctx.fillStyle = this.selectionBackgroundColor;\n      ctx.fillRect(-wh.x / 2, -wh.y / 2, wh.x, wh.y);\n      ctx.restore();\n      return this;\n    },\n\n    /**\n     * Draws borders of an object's bounding box.\n     * Requires public properties: width, height\n     * Requires public options: padding, borderColor\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @param {Object} styleOverride object to override the object style\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawBorders: function(ctx, styleOverride) {\n      styleOverride = styleOverride || {};\n      var wh = this._calculateCurrentDimensions(),\n          strokeWidth = this.borderScaleFactor,\n          width = wh.x + strokeWidth,\n          height = wh.y + strokeWidth,\n          drawRotatingPoint = typeof styleOverride.hasRotatingPoint !== 'undefined' ?\n            styleOverride.hasRotatingPoint : this.hasRotatingPoint,\n          hasControls = typeof styleOverride.hasControls !== 'undefined' ?\n            styleOverride.hasControls : this.hasControls,\n          rotatingPointOffset = typeof styleOverride.rotatingPointOffset !== 'undefined' ?\n            styleOverride.rotatingPointOffset : this.rotatingPointOffset;\n\n      ctx.save();\n      ctx.strokeStyle = styleOverride.borderColor || this.borderColor;\n      this._setLineDash(ctx, styleOverride.borderDashArray || this.borderDashArray, null);\n\n      ctx.strokeRect(\n        -width / 2,\n        -height / 2,\n        width,\n        height\n      );\n\n      if (drawRotatingPoint && this.isControlVisible('mtr') && hasControls) {\n\n        var rotateHeight = -height / 2;\n\n        ctx.beginPath();\n        ctx.moveTo(0, rotateHeight);\n        ctx.lineTo(0, rotateHeight - rotatingPointOffset);\n        ctx.stroke();\n      }\n\n      ctx.restore();\n      return this;\n    },\n\n    /**\n     * Draws borders of an object's bounding box when it is inside a group.\n     * Requires public properties: width, height\n     * Requires public options: padding, borderColor\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @param {object} options object representing current object parameters\n     * @param {Object} styleOverride object to override the object style\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawBordersInGroup: function(ctx, options, styleOverride) {\n      styleOverride = styleOverride || {};\n      var p = { x: this.width, y: this.height },\n          matrix = fabric.util.composeMatrix({\n            scaleX: options.scaleX,\n            scaleY: options.scaleY,\n            skewX: options.skewX\n          }),\n          wh = fabric.util.transformPoint(p, matrix),\n          strokeWidth = this.strokeWidth,\n          borderScaleFactor = this.borderScaleFactor,\n          width =\n            wh.x + strokeWidth * (this.strokeUniform ? this.canvas.getZoom() : options.scaleX) + borderScaleFactor,\n          height =\n            wh.y + strokeWidth * (this.strokeUniform ? this.canvas.getZoom() : options.scaleY) + borderScaleFactor;\n      ctx.save();\n      this._setLineDash(ctx, styleOverride.borderDashArray || this.borderDashArray, null);\n      ctx.strokeStyle = styleOverride.borderColor || this.borderColor;\n\n      ctx.strokeRect(\n        -width / 2,\n        -height / 2,\n        width,\n        height\n      );\n\n      ctx.restore();\n      return this;\n    },\n\n    /**\n     * Draws corners of an object's bounding box.\n     * Requires public properties: width, height\n     * Requires public options: cornerSize, padding\n     * @param {CanvasRenderingContext2D} ctx Context to draw on\n     * @param {Object} styleOverride object to override the object style\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    drawControls: function(ctx, styleOverride) {\n      styleOverride = styleOverride || {};\n      var wh = this._calculateCurrentDimensions(),\n          width = wh.x,\n          height = wh.y,\n          scaleOffset = styleOverride.cornerSize || this.cornerSize,\n          left = -(width + scaleOffset) / 2,\n          top = -(height + scaleOffset) / 2,\n          transparentCorners = typeof styleOverride.transparentCorners !== 'undefined' ?\n            styleOverride.transparentCorners : this.transparentCorners,\n          hasRotatingPoint = typeof styleOverride.hasRotatingPoint !== 'undefined' ?\n            styleOverride.hasRotatingPoint : this.hasRotatingPoint,\n          methodName = transparentCorners ? 'stroke' : 'fill';\n\n      ctx.save();\n      ctx.strokeStyle = ctx.fillStyle = styleOverride.cornerColor || this.cornerColor;\n      if (!this.transparentCorners) {\n        ctx.strokeStyle = styleOverride.cornerStrokeColor || this.cornerStrokeColor;\n      }\n      this._setLineDash(ctx, styleOverride.cornerDashArray || this.cornerDashArray, null);\n\n      // top-left\n      this._drawControl('tl', ctx, methodName,\n        left,\n        top, styleOverride);\n\n      // top-right\n      this._drawControl('tr', ctx, methodName,\n        left + width,\n        top, styleOverride);\n\n      // bottom-left\n      this._drawControl('bl', ctx, methodName,\n        left,\n        top + height, styleOverride);\n\n      // bottom-right\n      this._drawControl('br', ctx, methodName,\n        left + width,\n        top + height, styleOverride);\n\n      if (!this.get('lockUniScaling')) {\n\n        // middle-top\n        this._drawControl('mt', ctx, methodName,\n          left + width / 2,\n          top, styleOverride);\n\n        // middle-bottom\n        this._drawControl('mb', ctx, methodName,\n          left + width / 2,\n          top + height, styleOverride);\n\n        // middle-right\n        this._drawControl('mr', ctx, methodName,\n          left + width,\n          top + height / 2, styleOverride);\n\n        // middle-left\n        this._drawControl('ml', ctx, methodName,\n          left,\n          top + height / 2, styleOverride);\n      }\n\n      // middle-top-rotate\n      if (hasRotatingPoint) {\n        this._drawControl('mtr', ctx, methodName,\n          left + width / 2,\n          top - this.rotatingPointOffset, styleOverride);\n      }\n\n      ctx.restore();\n\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _drawControl: function(control, ctx, methodName, left, top, styleOverride) {\n      styleOverride = styleOverride || {};\n      if (!this.isControlVisible(control)) {\n        return;\n      }\n      var size = this.cornerSize, stroke = !this.transparentCorners && this.cornerStrokeColor;\n      switch (styleOverride.cornerStyle || this.cornerStyle) {\n        case 'circle':\n          ctx.beginPath();\n          ctx.arc(left + size / 2, top + size / 2, size / 2, 0, 2 * Math.PI, false);\n          ctx[methodName]();\n          if (stroke) {\n            ctx.stroke();\n          }\n          break;\n        default:\n          this.transparentCorners || ctx.clearRect(left, top, size, size);\n          ctx[methodName + 'Rect'](left, top, size, size);\n          if (stroke) {\n            ctx.strokeRect(left, top, size, size);\n          }\n      }\n    },\n\n    /**\n     * Returns true if the specified control is visible, false otherwise.\n     * @param {String} controlName The name of the control. Possible values are 'tl', 'tr', 'br', 'bl', 'ml', 'mt', 'mr', 'mb', 'mtr'.\n     * @returns {Boolean} true if the specified control is visible, false otherwise\n     */\n    isControlVisible: function(controlName) {\n      return this._getControlsVisibility()[controlName];\n    },\n\n    /**\n     * Sets the visibility of the specified control.\n     * @param {String} controlName The name of the control. Possible values are 'tl', 'tr', 'br', 'bl', 'ml', 'mt', 'mr', 'mb', 'mtr'.\n     * @param {Boolean} visible true to set the specified control visible, false otherwise\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    setControlVisible: function(controlName, visible) {\n      this._getControlsVisibility()[controlName] = visible;\n      return this;\n    },\n\n    /**\n     * Sets the visibility state of object controls.\n     * @param {Object} [options] Options object\n     * @param {Boolean} [options.bl] true to enable the bottom-left control, false to disable it\n     * @param {Boolean} [options.br] true to enable the bottom-right control, false to disable it\n     * @param {Boolean} [options.mb] true to enable the middle-bottom control, false to disable it\n     * @param {Boolean} [options.ml] true to enable the middle-left control, false to disable it\n     * @param {Boolean} [options.mr] true to enable the middle-right control, false to disable it\n     * @param {Boolean} [options.mt] true to enable the middle-top control, false to disable it\n     * @param {Boolean} [options.tl] true to enable the top-left control, false to disable it\n     * @param {Boolean} [options.tr] true to enable the top-right control, false to disable it\n     * @param {Boolean} [options.mtr] true to enable the middle-top-rotate control, false to disable it\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    setControlsVisibility: function(options) {\n      options || (options = { });\n\n      for (var p in options) {\n        this.setControlVisible(p, options[p]);\n      }\n      return this;\n    },\n\n    /**\n     * Returns the instance of the control visibility set for this object.\n     * @private\n     * @returns {Object}\n     */\n    _getControlsVisibility: function() {\n      if (!this._controlsVisibility) {\n        this._controlsVisibility = {\n          tl: true,\n          tr: true,\n          br: true,\n          bl: true,\n          ml: true,\n          mt: true,\n          mr: true,\n          mb: true,\n          mtr: true\n        };\n      }\n      return this._controlsVisibility;\n    },\n\n    /**\n     * This callback function is called every time _discardActiveObject or _setActiveObject\n     * try to to deselect this object. If the function returns true, the process is cancelled\n     * @param {Object} [options] options sent from the upper functions\n     * @param {Event} [options.e] event if the process is generated by an event\n     */\n    onDeselect: function() {\n      // implemented by sub-classes, as needed.\n    },\n\n\n    /**\n     * This callback function is called every time _discardActiveObject or _setActiveObject\n     * try to to select this object. If the function returns true, the process is cancelled\n     * @param {Object} [options] options sent from the upper functions\n     * @param {Event} [options.e] event if the process is generated by an event\n     */\n    onSelect: function() {\n      // implemented by sub-classes, as needed.\n    }\n  });\n})();\n\n\nfabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n  /**\n   * Animation duration (in ms) for fx* methods\n   * @type Number\n   * @default\n   */\n  FX_DURATION: 500,\n\n  /**\n   * Centers object horizontally with animation.\n   * @param {fabric.Object} object Object to center\n   * @param {Object} [callbacks] Callbacks object with optional \"onComplete\" and/or \"onChange\" properties\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxCenterObjectH: function (object, callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: object.left,\n      endValue: this.getCenter().left,\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        object.set('left', value);\n        _this.requestRenderAll();\n        onChange();\n      },\n      onComplete: function() {\n        object.setCoords();\n        onComplete();\n      }\n    });\n\n    return this;\n  },\n\n  /**\n   * Centers object vertically with animation.\n   * @param {fabric.Object} object Object to center\n   * @param {Object} [callbacks] Callbacks object with optional \"onComplete\" and/or \"onChange\" properties\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxCenterObjectV: function (object, callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: object.top,\n      endValue: this.getCenter().top,\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        object.set('top', value);\n        _this.requestRenderAll();\n        onChange();\n      },\n      onComplete: function() {\n        object.setCoords();\n        onComplete();\n      }\n    });\n\n    return this;\n  },\n\n  /**\n   * Same as `fabric.Canvas#remove` but animated\n   * @param {fabric.Object} object Object to remove\n   * @param {Object} [callbacks] Callbacks object with optional \"onComplete\" and/or \"onChange\" properties\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxRemove: function (object, callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: object.opacity,\n      endValue: 0,\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        object.set('opacity', value);\n        _this.requestRenderAll();\n        onChange();\n      },\n      onComplete: function () {\n        _this.remove(object);\n        onComplete();\n      }\n    });\n\n    return this;\n  }\n});\n\nfabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n  /**\n   * Animates object's properties\n   * @param {String|Object} property Property to animate (if string) or properties to animate (if object)\n   * @param {Number|Object} value Value to animate property to (if string was given first) or options object\n   * @return {fabric.Object} thisArg\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#animation}\n   * @chainable\n   *\n   * As object — multiple properties\n   *\n   * object.animate({ left: ..., top: ... });\n   * object.animate({ left: ..., top: ... }, { duration: ... });\n   *\n   * As string — one property\n   *\n   * object.animate('left', ...);\n   * object.animate('left', { duration: ... });\n   *\n   */\n  animate: function() {\n    if (arguments[0] && typeof arguments[0] === 'object') {\n      var propsToAnimate = [], prop, skipCallbacks;\n      for (prop in arguments[0]) {\n        propsToAnimate.push(prop);\n      }\n      for (var i = 0, len = propsToAnimate.length; i < len; i++) {\n        prop = propsToAnimate[i];\n        skipCallbacks = i !== len - 1;\n        this._animate(prop, arguments[0][prop], arguments[1], skipCallbacks);\n      }\n    }\n    else {\n      this._animate.apply(this, arguments);\n    }\n    return this;\n  },\n\n  /**\n   * @private\n   * @param {String} property Property to animate\n   * @param {String} to Value to animate to\n   * @param {Object} [options] Options object\n   * @param {Boolean} [skipCallbacks] When true, callbacks like onchange and oncomplete are not invoked\n   */\n  _animate: function(property, to, options, skipCallbacks) {\n    var _this = this, propPair;\n\n    to = to.toString();\n\n    if (!options) {\n      options = { };\n    }\n    else {\n      options = fabric.util.object.clone(options);\n    }\n\n    if (~property.indexOf('.')) {\n      propPair = property.split('.');\n    }\n\n    var currentValue = propPair\n      ? this.get(propPair[0])[propPair[1]]\n      : this.get(property);\n\n    if (!('from' in options)) {\n      options.from = currentValue;\n    }\n\n    if (~to.indexOf('=')) {\n      to = currentValue + parseFloat(to.replace('=', ''));\n    }\n    else {\n      to = parseFloat(to);\n    }\n\n    fabric.util.animate({\n      startValue: options.from,\n      endValue: to,\n      byValue: options.by,\n      easing: options.easing,\n      duration: options.duration,\n      abort: options.abort && function() {\n        return options.abort.call(_this);\n      },\n      onChange: function(value, valueProgress, timeProgress) {\n        if (propPair) {\n          _this[propPair[0]][propPair[1]] = value;\n        }\n        else {\n          _this.set(property, value);\n        }\n        if (skipCallbacks) {\n          return;\n        }\n        options.onChange && options.onChange(value, valueProgress, timeProgress);\n      },\n      onComplete: function(value, valueProgress, timeProgress) {\n        if (skipCallbacks) {\n          return;\n        }\n\n        _this.setCoords();\n        options.onComplete && options.onComplete(value, valueProgress, timeProgress);\n      }\n    });\n  }\n});\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      clone = fabric.util.object.clone,\n      coordProps = { x1: 1, x2: 1, y1: 1, y2: 1 },\n      supportsLineDash = fabric.StaticCanvas.supports('setLineDash');\n\n  if (fabric.Line) {\n    fabric.warn('fabric.Line is already defined');\n    return;\n  }\n\n  /**\n   * Line class\n   * @class fabric.Line\n   * @extends fabric.Object\n   * @see {@link fabric.Line#initialize} for constructor definition\n   */\n  fabric.Line = fabric.util.createClass(fabric.Object, /** @lends fabric.Line.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'line',\n\n    /**\n     * x value or first line edge\n     * @type Number\n     * @default\n     */\n    x1: 0,\n\n    /**\n     * y value or first line edge\n     * @type Number\n     * @default\n     */\n    y1: 0,\n\n    /**\n     * x value or second line edge\n     * @type Number\n     * @default\n     */\n    x2: 0,\n\n    /**\n     * y value or second line edge\n     * @type Number\n     * @default\n     */\n    y2: 0,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('x1', 'x2', 'y1', 'y2'),\n\n    /**\n     * Constructor\n     * @param {Array} [points] Array of points\n     * @param {Object} [options] Options object\n     * @return {fabric.Line} thisArg\n     */\n    initialize: function(points, options) {\n      if (!points) {\n        points = [0, 0, 0, 0];\n      }\n\n      this.callSuper('initialize', options);\n\n      this.set('x1', points[0]);\n      this.set('y1', points[1]);\n      this.set('x2', points[2]);\n      this.set('y2', points[3]);\n\n      this._setWidthHeight(options);\n    },\n\n    /**\n     * @private\n     * @param {Object} [options] Options\n     */\n    _setWidthHeight: function(options) {\n      options || (options = { });\n\n      this.width = Math.abs(this.x2 - this.x1);\n      this.height = Math.abs(this.y2 - this.y1);\n\n      this.left = 'left' in options\n        ? options.left\n        : this._getLeftToOriginX();\n\n      this.top = 'top' in options\n        ? options.top\n        : this._getTopToOriginY();\n    },\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     */\n    _set: function(key, value) {\n      this.callSuper('_set', key, value);\n      if (typeof coordProps[key] !== 'undefined') {\n        this._setWidthHeight();\n      }\n      return this;\n    },\n\n    /**\n     * @private\n     * @return {Number} leftToOriginX Distance from left edge of canvas to originX of Line.\n     */\n    _getLeftToOriginX: makeEdgeToOriginGetter(\n      { // property names\n        origin: 'originX',\n        axis1: 'x1',\n        axis2: 'x2',\n        dimension: 'width'\n      },\n      { // possible values of origin\n        nearest: 'left',\n        center: 'center',\n        farthest: 'right'\n      }\n    ),\n\n    /**\n     * @private\n     * @return {Number} topToOriginY Distance from top edge of canvas to originY of Line.\n     */\n    _getTopToOriginY: makeEdgeToOriginGetter(\n      { // property names\n        origin: 'originY',\n        axis1: 'y1',\n        axis2: 'y2',\n        dimension: 'height'\n      },\n      { // possible values of origin\n        nearest: 'top',\n        center: 'center',\n        farthest: 'bottom'\n      }\n    ),\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      ctx.beginPath();\n\n      if (!this.strokeDashArray || this.strokeDashArray && supportsLineDash) {\n        // move from center (of virtual box) to its left/top corner\n        // we can't assume x1, y1 is top left and x2, y2 is bottom right\n        var p = this.calcLinePoints();\n        ctx.moveTo(p.x1, p.y1);\n        ctx.lineTo(p.x2, p.y2);\n      }\n\n      ctx.lineWidth = this.strokeWidth;\n\n      // TODO: test this\n      // make sure setting \"fill\" changes color of a line\n      // (by copying fillStyle to strokeStyle, since line is stroked, not filled)\n      var origStrokeStyle = ctx.strokeStyle;\n      ctx.strokeStyle = this.stroke || ctx.fillStyle;\n      this.stroke && this._renderStroke(ctx);\n      ctx.strokeStyle = origStrokeStyle;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var p = this.calcLinePoints();\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, p.x1, p.y1, p.x2, p.y2, this.strokeDashArray);\n      ctx.closePath();\n    },\n\n    /**\n     * This function is an helper for svg import. it returns the center of the object in the svg\n     * untransformed coordinates\n     * @private\n     * @return {Object} center point from element coordinates\n     */\n    _findCenterFromElement: function() {\n      return {\n        x: (this.x1 + this.x2) / 2,\n        y: (this.y1 + this.y2) / 2,\n      };\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @methd toObject\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return extend(this.callSuper('toObject', propertiesToInclude), this.calcLinePoints());\n    },\n\n    /*\n     * Calculate object dimensions from its properties\n     * @private\n     */\n    _getNonTransformedDimensions: function() {\n      var dim = this.callSuper('_getNonTransformedDimensions');\n      if (this.strokeLineCap === 'butt') {\n        if (this.width === 0) {\n          dim.y -= this.strokeWidth;\n        }\n        if (this.height === 0) {\n          dim.x -= this.strokeWidth;\n        }\n      }\n      return dim;\n    },\n\n    /**\n     * Recalculates line points given width and height\n     * @private\n     */\n    calcLinePoints: function() {\n      var xMult = this.x1 <= this.x2 ? -1 : 1,\n          yMult = this.y1 <= this.y2 ? -1 : 1,\n          x1 = (xMult * this.width * 0.5),\n          y1 = (yMult * this.height * 0.5),\n          x2 = (xMult * this.width * -0.5),\n          y2 = (yMult * this.height * -0.5);\n\n      return {\n        x1: x1,\n        x2: x2,\n        y1: y1,\n        y2: y2\n      };\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var p = this.calcLinePoints();\n      return [\n        '<line ', 'COMMON_PARTS',\n        'x1=\"', p.x1,\n        '\" y1=\"', p.y1,\n        '\" x2=\"', p.x2,\n        '\" y2=\"', p.y2,\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Line.fromElement})\n   * @static\n   * @memberOf fabric.Line\n   * @see http://www.w3.org/TR/SVG/shapes.html#LineElement\n   */\n  fabric.Line.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('x1 y1 x2 y2'.split(' '));\n\n  /**\n   * Returns fabric.Line instance from an SVG element\n   * @static\n   * @memberOf fabric.Line\n   * @param {SVGElement} element Element to parse\n   * @param {Object} [options] Options object\n   * @param {Function} [callback] callback function invoked after parsing\n   */\n  fabric.Line.fromElement = function(element, callback, options) {\n    options = options || { };\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Line.ATTRIBUTE_NAMES),\n        points = [\n          parsedAttributes.x1 || 0,\n          parsedAttributes.y1 || 0,\n          parsedAttributes.x2 || 0,\n          parsedAttributes.y2 || 0\n        ];\n    callback(new fabric.Line(points, extend(parsedAttributes, options)));\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Line instance from an object representation\n   * @static\n   * @memberOf fabric.Line\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   */\n  fabric.Line.fromObject = function(object, callback) {\n    function _callback(instance) {\n      delete instance.points;\n      callback && callback(instance);\n    };\n    var options = clone(object, true);\n    options.points = [object.x1, object.y1, object.x2, object.y2];\n    fabric.Object._fromObject('Line', options, _callback, 'points');\n  };\n\n  /**\n   * Produces a function that calculates distance from canvas edge to Line origin.\n   */\n  function makeEdgeToOriginGetter(propertyNames, originValues) {\n    var origin = propertyNames.origin,\n        axis1 = propertyNames.axis1,\n        axis2 = propertyNames.axis2,\n        dimension = propertyNames.dimension,\n        nearest = originValues.nearest,\n        center = originValues.center,\n        farthest = originValues.farthest;\n\n    return function() {\n      switch (this.get(origin)) {\n        case nearest:\n          return Math.min(this.get(axis1), this.get(axis2));\n        case center:\n          return Math.min(this.get(axis1), this.get(axis2)) + (0.5 * this.get(dimension));\n        case farthest:\n          return Math.max(this.get(axis1), this.get(axis2));\n      }\n    };\n\n  }\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      pi = Math.PI;\n\n  if (fabric.Circle) {\n    fabric.warn('fabric.Circle is already defined.');\n    return;\n  }\n\n  /**\n   * Circle class\n   * @class fabric.Circle\n   * @extends fabric.Object\n   * @see {@link fabric.Circle#initialize} for constructor definition\n   */\n  fabric.Circle = fabric.util.createClass(fabric.Object, /** @lends fabric.Circle.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'circle',\n\n    /**\n     * Radius of this circle\n     * @type Number\n     * @default\n     */\n    radius: 0,\n\n    /**\n     * Start angle of the circle, moving clockwise\n     * deprectated type, this should be in degree, this was an oversight.\n     * probably will change to degrees in next major version\n     * @type Number\n     * @default 0\n     */\n    startAngle: 0,\n\n    /**\n     * End angle of the circle\n     * deprectated type, this should be in degree, this was an oversight.\n     * probably will change to degrees in next major version\n     * @type Number\n     * @default 2Pi\n     */\n    endAngle: pi * 2,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('radius', 'startAngle', 'endAngle'),\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     * @return {fabric.Circle} thisArg\n     */\n    _set: function(key, value) {\n      this.callSuper('_set', key, value);\n\n      if (key === 'radius') {\n        this.setRadius(value);\n      }\n\n      return this;\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['radius', 'startAngle', 'endAngle'].concat(propertiesToInclude));\n    },\n\n    /* _TO_SVG_START_ */\n\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var svgString, x = 0, y = 0,\n          angle = (this.endAngle - this.startAngle) % ( 2 * pi);\n\n      if (angle === 0) {\n        svgString = [\n          '<circle ', 'COMMON_PARTS',\n          'cx=\"' + x + '\" cy=\"' + y + '\" ',\n          'r=\"', this.radius,\n          '\" />\\n'\n        ];\n      }\n      else {\n        var startX = fabric.util.cos(this.startAngle) * this.radius,\n            startY = fabric.util.sin(this.startAngle) * this.radius,\n            endX = fabric.util.cos(this.endAngle) * this.radius,\n            endY = fabric.util.sin(this.endAngle) * this.radius,\n            largeFlag = angle > pi ? '1' : '0';\n        svgString = [\n          '<path d=\"M ' + startX + ' ' + startY,\n          ' A ' + this.radius + ' ' + this.radius,\n          ' 0 ', +largeFlag + ' 1', ' ' + endX + ' ' + endY,\n          '\" ', 'COMMON_PARTS', ' />\\n'\n        ];\n      }\n      return svgString;\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render on\n     */\n    _render: function(ctx) {\n      ctx.beginPath();\n      ctx.arc(\n        0,\n        0,\n        this.radius,\n        this.startAngle,\n        this.endAngle, false);\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * Returns horizontal radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRadiusX: function() {\n      return this.get('radius') * this.get('scaleX');\n    },\n\n    /**\n     * Returns vertical radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRadiusY: function() {\n      return this.get('radius') * this.get('scaleY');\n    },\n\n    /**\n     * Sets radius of an object (and updates width accordingly)\n     * @return {fabric.Circle} thisArg\n     */\n    setRadius: function(value) {\n      this.radius = value;\n      return this.set('width', value * 2).set('height', value * 2);\n    },\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Circle.fromElement})\n   * @static\n   * @memberOf fabric.Circle\n   * @see: http://www.w3.org/TR/SVG/shapes.html#CircleElement\n   */\n  fabric.Circle.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('cx cy r'.split(' '));\n\n  /**\n   * Returns {@link fabric.Circle} instance from an SVG element\n   * @static\n   * @memberOf fabric.Circle\n   * @param {SVGElement} element Element to parse\n   * @param {Function} [callback] Options callback invoked after parsing is finished\n   * @param {Object} [options] Options object\n   * @throws {Error} If value of `r` attribute is missing or invalid\n   */\n  fabric.Circle.fromElement = function(element, callback) {\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Circle.ATTRIBUTE_NAMES);\n\n    if (!isValidRadius(parsedAttributes)) {\n      throw new Error('value of `r` attribute is required and can not be negative');\n    }\n\n    parsedAttributes.left = (parsedAttributes.left || 0) - parsedAttributes.radius;\n    parsedAttributes.top = (parsedAttributes.top || 0) - parsedAttributes.radius;\n    callback(new fabric.Circle(parsedAttributes));\n  };\n\n  /**\n   * @private\n   */\n  function isValidRadius(attributes) {\n    return (('radius' in attributes) && (attributes.radius >= 0));\n  }\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns {@link fabric.Circle} instance from an object representation\n   * @static\n   * @memberOf fabric.Circle\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   * @return {Object} Instance of fabric.Circle\n   */\n  fabric.Circle.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Circle', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Triangle) {\n    fabric.warn('fabric.Triangle is already defined');\n    return;\n  }\n\n  /**\n   * Triangle class\n   * @class fabric.Triangle\n   * @extends fabric.Object\n   * @return {fabric.Triangle} thisArg\n   * @see {@link fabric.Triangle#initialize} for constructor definition\n   */\n  fabric.Triangle = fabric.util.createClass(fabric.Object, /** @lends fabric.Triangle.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'triangle',\n\n    /**\n     * Width is set to 100 to compensate the old initialize code that was setting it to 100\n     * @type Number\n     * @default\n     */\n    width: 100,\n\n    /**\n     * Height is set to 100 to compensate the old initialize code that was setting it to 100\n     * @type Number\n     * @default\n     */\n    height: 100,\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      var widthBy2 = this.width / 2,\n          heightBy2 = this.height / 2;\n\n      ctx.beginPath();\n      ctx.moveTo(-widthBy2, heightBy2);\n      ctx.lineTo(0, -heightBy2);\n      ctx.lineTo(widthBy2, heightBy2);\n      ctx.closePath();\n\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var widthBy2 = this.width / 2,\n          heightBy2 = this.height / 2;\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, -widthBy2, heightBy2, 0, -heightBy2, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, 0, -heightBy2, widthBy2, heightBy2, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, widthBy2, heightBy2, -widthBy2, heightBy2, this.strokeDashArray);\n      ctx.closePath();\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var widthBy2 = this.width / 2,\n          heightBy2 = this.height / 2,\n          points = [\n            -widthBy2 + ' ' + heightBy2,\n            '0 ' + -heightBy2,\n            widthBy2 + ' ' + heightBy2\n          ].join(',');\n      return [\n        '<polygon ', 'COMMON_PARTS',\n        'points=\"', points,\n        '\" />'\n      ];\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /**\n   * Returns {@link fabric.Triangle} instance from an object representation\n   * @static\n   * @memberOf fabric.Triangle\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   */\n  fabric.Triangle.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Triangle', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      piBy2   = Math.PI * 2;\n\n  if (fabric.Ellipse) {\n    fabric.warn('fabric.Ellipse is already defined.');\n    return;\n  }\n\n  /**\n   * Ellipse class\n   * @class fabric.Ellipse\n   * @extends fabric.Object\n   * @return {fabric.Ellipse} thisArg\n   * @see {@link fabric.Ellipse#initialize} for constructor definition\n   */\n  fabric.Ellipse = fabric.util.createClass(fabric.Object, /** @lends fabric.Ellipse.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'ellipse',\n\n    /**\n     * Horizontal radius\n     * @type Number\n     * @default\n     */\n    rx:   0,\n\n    /**\n     * Vertical radius\n     * @type Number\n     * @default\n     */\n    ry:   0,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('rx', 'ry'),\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     * @return {fabric.Ellipse} thisArg\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      this.set('rx', options && options.rx || 0);\n      this.set('ry', options && options.ry || 0);\n    },\n\n    /**\n     * @private\n     * @param {String} key\n     * @param {*} value\n     * @return {fabric.Ellipse} thisArg\n     */\n    _set: function(key, value) {\n      this.callSuper('_set', key, value);\n      switch (key) {\n\n        case 'rx':\n          this.rx = value;\n          this.set('width', value * 2);\n          break;\n\n        case 'ry':\n          this.ry = value;\n          this.set('height', value * 2);\n          break;\n\n      }\n      return this;\n    },\n\n    /**\n     * Returns horizontal radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRx: function() {\n      return this.get('rx') * this.get('scaleX');\n    },\n\n    /**\n     * Returns Vertical radius of an object (according to how an object is scaled)\n     * @return {Number}\n     */\n    getRy: function() {\n      return this.get('ry') * this.get('scaleY');\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['rx', 'ry'].concat(propertiesToInclude));\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      return [\n        '<ellipse ', 'COMMON_PARTS',\n        'cx=\"0\" cy=\"0\" ',\n        'rx=\"', this.rx,\n        '\" ry=\"', this.ry,\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render on\n     */\n    _render: function(ctx) {\n      ctx.beginPath();\n      ctx.save();\n      ctx.transform(1, 0, 0, this.ry / this.rx, 0, 0);\n      ctx.arc(\n        0,\n        0,\n        this.rx,\n        0,\n        piBy2,\n        false);\n      ctx.restore();\n      this._renderPaintInOrder(ctx);\n    },\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Ellipse.fromElement})\n   * @static\n   * @memberOf fabric.Ellipse\n   * @see http://www.w3.org/TR/SVG/shapes.html#EllipseElement\n   */\n  fabric.Ellipse.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('cx cy rx ry'.split(' '));\n\n  /**\n   * Returns {@link fabric.Ellipse} instance from an SVG element\n   * @static\n   * @memberOf fabric.Ellipse\n   * @param {SVGElement} element Element to parse\n   * @param {Function} [callback] Options callback invoked after parsing is finished\n   * @return {fabric.Ellipse}\n   */\n  fabric.Ellipse.fromElement = function(element, callback) {\n\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Ellipse.ATTRIBUTE_NAMES);\n\n    parsedAttributes.left = (parsedAttributes.left || 0) - parsedAttributes.rx;\n    parsedAttributes.top = (parsedAttributes.top || 0) - parsedAttributes.ry;\n    callback(new fabric.Ellipse(parsedAttributes));\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns {@link fabric.Ellipse} instance from an object representation\n   * @static\n   * @memberOf fabric.Ellipse\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as first argument\n   * @return {fabric.Ellipse}\n   */\n  fabric.Ellipse.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Ellipse', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend;\n\n  if (fabric.Rect) {\n    fabric.warn('fabric.Rect is already defined');\n    return;\n  }\n\n  /**\n   * Rectangle class\n   * @class fabric.Rect\n   * @extends fabric.Object\n   * @return {fabric.Rect} thisArg\n   * @see {@link fabric.Rect#initialize} for constructor definition\n   */\n  fabric.Rect = fabric.util.createClass(fabric.Object, /** @lends fabric.Rect.prototype */ {\n\n    /**\n     * List of properties to consider when checking if state of an object is changed ({@link fabric.Object#hasStateChanged})\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: fabric.Object.prototype.stateProperties.concat('rx', 'ry'),\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'rect',\n\n    /**\n     * Horizontal border radius\n     * @type Number\n     * @default\n     */\n    rx:   0,\n\n    /**\n     * Vertical border radius\n     * @type Number\n     * @default\n     */\n    ry:   0,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('rx', 'ry'),\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      this._initRxRy();\n    },\n\n    /**\n     * Initializes rx/ry attributes\n     * @private\n     */\n    _initRxRy: function() {\n      if (this.rx && !this.ry) {\n        this.ry = this.rx;\n      }\n      else if (this.ry && !this.rx) {\n        this.rx = this.ry;\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n\n      // 1x1 case (used in spray brush) optimization was removed because\n      // with caching and higher zoom level this makes more damage than help\n\n      var rx = this.rx ? Math.min(this.rx, this.width / 2) : 0,\n          ry = this.ry ? Math.min(this.ry, this.height / 2) : 0,\n          w = this.width,\n          h = this.height,\n          x = -this.width / 2,\n          y = -this.height / 2,\n          isRounded = rx !== 0 || ry !== 0,\n          /* \"magic number\" for bezier approximations of arcs (http://itc.ktu.lt/itc354/Riskus354.pdf) */\n          k = 1 - 0.5522847498;\n      ctx.beginPath();\n\n      ctx.moveTo(x + rx, y);\n\n      ctx.lineTo(x + w - rx, y);\n      isRounded && ctx.bezierCurveTo(x + w - k * rx, y, x + w, y + k * ry, x + w, y + ry);\n\n      ctx.lineTo(x + w, y + h - ry);\n      isRounded && ctx.bezierCurveTo(x + w, y + h - k * ry, x + w - k * rx, y + h, x + w - rx, y + h);\n\n      ctx.lineTo(x + rx, y + h);\n      isRounded && ctx.bezierCurveTo(x + k * rx, y + h, x, y + h - k * ry, x, y + h - ry);\n\n      ctx.lineTo(x, y + ry);\n      isRounded && ctx.bezierCurveTo(x, y + k * ry, x + k * rx, y, x + rx, y);\n\n      ctx.closePath();\n\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var x = -this.width / 2,\n          y = -this.height / 2,\n          w = this.width,\n          h = this.height;\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, x, y, x + w, y, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y, x + w, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y + h, x, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x, y + h, x, y, this.strokeDashArray);\n      ctx.closePath();\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['rx', 'ry'].concat(propertiesToInclude));\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var x = -this.width / 2, y = -this.height / 2;\n      return [\n        '<rect ', 'COMMON_PARTS',\n        'x=\"', x, '\" y=\"', y,\n        '\" rx=\"', this.rx, '\" ry=\"', this.ry,\n        '\" width=\"', this.width, '\" height=\"', this.height,\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by `fabric.Rect.fromElement`)\n   * @static\n   * @memberOf fabric.Rect\n   * @see: http://www.w3.org/TR/SVG/shapes.html#RectElement\n   */\n  fabric.Rect.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat('x y rx ry width height'.split(' '));\n\n  /**\n   * Returns {@link fabric.Rect} instance from an SVG element\n   * @static\n   * @memberOf fabric.Rect\n   * @param {SVGElement} element Element to parse\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Rect.fromElement = function(element, callback, options) {\n    if (!element) {\n      return callback(null);\n    }\n    options = options || { };\n\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Rect.ATTRIBUTE_NAMES);\n\n    parsedAttributes.left = parsedAttributes.left || 0;\n    parsedAttributes.top  = parsedAttributes.top  || 0;\n    parsedAttributes.height  = parsedAttributes.height || 0;\n    parsedAttributes.width  = parsedAttributes.width || 0;\n    var rect = new fabric.Rect(extend((options ? fabric.util.object.clone(options) : { }), parsedAttributes));\n    rect.visible = rect.visible && rect.width > 0 && rect.height > 0;\n    callback(rect);\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns {@link fabric.Rect} instance from an object representation\n   * @static\n   * @memberOf fabric.Rect\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Rect instance is created\n   */\n  fabric.Rect.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Rect', object, callback);\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      min = fabric.util.array.min,\n      max = fabric.util.array.max,\n      toFixed = fabric.util.toFixed;\n\n  if (fabric.Polyline) {\n    fabric.warn('fabric.Polyline is already defined');\n    return;\n  }\n\n  /**\n   * Polyline class\n   * @class fabric.Polyline\n   * @extends fabric.Object\n   * @see {@link fabric.Polyline#initialize} for constructor definition\n   */\n  fabric.Polyline = fabric.util.createClass(fabric.Object, /** @lends fabric.Polyline.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'polyline',\n\n    /**\n     * Points array\n     * @type Array\n     * @default\n     */\n    points: null,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('points'),\n\n    /**\n     * Constructor\n     * @param {Array} points Array of points (where each point is an object with x and y)\n     * @param {Object} [options] Options object\n     * @return {fabric.Polyline} thisArg\n     * @example\n     * var poly = new fabric.Polyline([\n     *     { x: 10, y: 10 },\n     *     { x: 50, y: 30 },\n     *     { x: 40, y: 70 },\n     *     { x: 60, y: 50 },\n     *     { x: 100, y: 150 },\n     *     { x: 40, y: 100 }\n     *   ], {\n     *   stroke: 'red',\n     *   left: 100,\n     *   top: 100\n     * });\n     */\n    initialize: function(points, options) {\n      options = options || {};\n      this.points = points || [];\n      this.callSuper('initialize', options);\n      this._setPositionDimensions(options);\n    },\n\n    _setPositionDimensions: function(options) {\n      var calcDim = this._calcDimensions(options), correctLeftTop;\n      this.width = calcDim.width;\n      this.height = calcDim.height;\n      if (!options.fromSVG) {\n        correctLeftTop = this.translateToGivenOrigin(\n          { x: calcDim.left - this.strokeWidth / 2, y: calcDim.top - this.strokeWidth / 2 },\n          'left',\n          'top',\n          this.originX,\n          this.originY\n        );\n      }\n      if (typeof options.left === 'undefined') {\n        this.left = options.fromSVG ? calcDim.left : correctLeftTop.x;\n      }\n      if (typeof options.top === 'undefined') {\n        this.top = options.fromSVG ? calcDim.top : correctLeftTop.y;\n      }\n      this.pathOffset = {\n        x: calcDim.left + this.width / 2,\n        y: calcDim.top + this.height / 2\n      };\n    },\n\n    /**\n     * Calculate the polygon min and max point from points array,\n     * returning an object with left, top, widht, height to measure the\n     * polygon size\n     * @return {Object} object.left X coordinate of the polygon leftmost point\n     * @return {Object} object.top Y coordinate of the polygon topmost point\n     * @return {Object} object.width distance between X coordinates of the polygon leftmost and rightmost point\n     * @return {Object} object.height distance between Y coordinates of the polygon topmost and bottommost point\n     * @private\n     */\n    _calcDimensions: function() {\n\n      var points = this.points,\n          minX = min(points, 'x') || 0,\n          minY = min(points, 'y') || 0,\n          maxX = max(points, 'x') || 0,\n          maxY = max(points, 'y') || 0,\n          width = (maxX - minX),\n          height = (maxY - minY);\n\n      return {\n        left: minX,\n        top: minY,\n        width: width,\n        height: height\n      };\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return extend(this.callSuper('toObject', propertiesToInclude), {\n        points: this.points.concat()\n      });\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var points = [], diffX = this.pathOffset.x, diffY = this.pathOffset.y,\n          NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n\n      for (var i = 0, len = this.points.length; i < len; i++) {\n        points.push(\n          toFixed(this.points[i].x - diffX, NUM_FRACTION_DIGITS), ',',\n          toFixed(this.points[i].y - diffY, NUM_FRACTION_DIGITS), ' '\n        );\n      }\n      return [\n        '<' + this.type + ' ', 'COMMON_PARTS',\n        'points=\"', points.join(''),\n        '\" />\\n'\n      ];\n    },\n    /* _TO_SVG_END_ */\n\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    commonRender: function(ctx) {\n      var point, len = this.points.length,\n          x = this.pathOffset.x,\n          y = this.pathOffset.y;\n\n      if (!len || isNaN(this.points[len - 1].y)) {\n        // do not draw if no points or odd points\n        // NaN comes from parseFloat of a empty string in parser\n        return false;\n      }\n      ctx.beginPath();\n      ctx.moveTo(this.points[0].x - x, this.points[0].y - y);\n      for (var i = 0; i < len; i++) {\n        point = this.points[i];\n        ctx.lineTo(point.x - x, point.y - y);\n      }\n      return true;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      if (!this.commonRender(ctx)) {\n        return;\n      }\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var p1, p2;\n\n      ctx.beginPath();\n      for (var i = 0, len = this.points.length; i < len; i++) {\n        p1 = this.points[i];\n        p2 = this.points[i + 1] || p1;\n        fabric.util.drawDashedLine(ctx, p1.x, p1.y, p2.x, p2.y, this.strokeDashArray);\n      }\n    },\n\n    /**\n     * Returns complexity of an instance\n     * @return {Number} complexity of this instance\n     */\n    complexity: function() {\n      return this.get('points').length;\n    }\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Polyline.fromElement})\n   * @static\n   * @memberOf fabric.Polyline\n   * @see: http://www.w3.org/TR/SVG/shapes.html#PolylineElement\n   */\n  fabric.Polyline.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat();\n\n  /**\n   * Returns fabric.Polyline instance from an SVG element\n   * @static\n   * @memberOf fabric.Polyline\n   * @param {SVGElement} element Element to parser\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Polyline.fromElementGenerator = function(_class) {\n    return function(element, callback, options) {\n      if (!element) {\n        return callback(null);\n      }\n      options || (options = { });\n\n      var points = fabric.parsePointsAttribute(element.getAttribute('points')),\n          parsedAttributes = fabric.parseAttributes(element, fabric[_class].ATTRIBUTE_NAMES);\n      parsedAttributes.fromSVG = true;\n      callback(new fabric[_class](points, extend(parsedAttributes, options)));\n    };\n  };\n\n  fabric.Polyline.fromElement = fabric.Polyline.fromElementGenerator('Polyline');\n\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Polyline instance from an object representation\n   * @static\n   * @memberOf fabric.Polyline\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Path instance is created\n   */\n  fabric.Polyline.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Polyline', object, callback, 'points');\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.Polygon) {\n    fabric.warn('fabric.Polygon is already defined');\n    return;\n  }\n\n  /**\n   * Polygon class\n   * @class fabric.Polygon\n   * @extends fabric.Polyline\n   * @see {@link fabric.Polygon#initialize} for constructor definition\n   */\n  fabric.Polygon = fabric.util.createClass(fabric.Polyline, /** @lends fabric.Polygon.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'polygon',\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      if (!this.commonRender(ctx)) {\n        return;\n      }\n      ctx.closePath();\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      this.callSuper('_renderDashedStroke', ctx);\n      ctx.closePath();\n    },\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by `fabric.Polygon.fromElement`)\n   * @static\n   * @memberOf fabric.Polygon\n   * @see: http://www.w3.org/TR/SVG/shapes.html#PolygonElement\n   */\n  fabric.Polygon.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat();\n\n  /**\n   * Returns {@link fabric.Polygon} instance from an SVG element\n   * @static\n   * @memberOf fabric.Polygon\n   * @param {SVGElement} element Element to parse\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Polygon.fromElement = fabric.Polyline.fromElementGenerator('Polygon');\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Polygon instance from an object representation\n   * @static\n   * @memberOf fabric.Polygon\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Path instance is created\n   */\n  fabric.Polygon.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Polygon', object, callback, 'points');\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      min = fabric.util.array.min,\n      max = fabric.util.array.max,\n      extend = fabric.util.object.extend,\n      _toString = Object.prototype.toString,\n      drawArc = fabric.util.drawArc,\n      toFixed = fabric.util.toFixed,\n      commandLengths = {\n        m: 2,\n        l: 2,\n        h: 1,\n        v: 1,\n        c: 6,\n        s: 4,\n        q: 4,\n        t: 2,\n        a: 7\n      },\n      repeatedCommands = {\n        m: 'l',\n        M: 'L'\n      };\n\n  if (fabric.Path) {\n    fabric.warn('fabric.Path is already defined');\n    return;\n  }\n\n  /**\n   * Path class\n   * @class fabric.Path\n   * @extends fabric.Object\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#path_and_pathgroup}\n   * @see {@link fabric.Path#initialize} for constructor definition\n   */\n  fabric.Path = fabric.util.createClass(fabric.Object, /** @lends fabric.Path.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'path',\n\n    /**\n     * Array of path points\n     * @type Array\n     * @default\n     */\n    path: null,\n\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('path', 'fillRule'),\n\n    stateProperties: fabric.Object.prototype.stateProperties.concat('path'),\n\n    /**\n     * Constructor\n     * @param {Array|String} path Path data (sequence of coordinates and corresponding \"command\" tokens)\n     * @param {Object} [options] Options object\n     * @return {fabric.Path} thisArg\n     */\n    initialize: function(path, options) {\n      options = options || { };\n      this.callSuper('initialize', options);\n\n      if (!path) {\n        path = [];\n      }\n\n      var fromArray = _toString.call(path) === '[object Array]';\n\n      this.path = fromArray\n        ? path\n        // one of commands (m,M,l,L,q,Q,c,C,etc.) followed by non-command characters (i.e. command values)\n        : path.match && path.match(/[mzlhvcsqta][^mzlhvcsqta]*/gi);\n\n      if (!this.path) {\n        return;\n      }\n\n      if (!fromArray) {\n        this.path = this._parsePath();\n      }\n\n      fabric.Polyline.prototype._setPositionDimensions.call(this, options);\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render path on\n     */\n    _renderPathCommands: function(ctx) {\n      var current, // current instruction\n          previous = null,\n          subpathStartX = 0,\n          subpathStartY = 0,\n          x = 0, // current x\n          y = 0, // current y\n          controlX = 0, // current control point x\n          controlY = 0, // current control point y\n          tempX,\n          tempY,\n          l = -this.pathOffset.x,\n          t = -this.pathOffset.y;\n\n      ctx.beginPath();\n\n      for (var i = 0, len = this.path.length; i < len; ++i) {\n\n        current = this.path[i];\n\n        switch (current[0]) { // first letter\n\n          case 'l': // lineto, relative\n            x += current[1];\n            y += current[2];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'L': // lineto, absolute\n            x = current[1];\n            y = current[2];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'h': // horizontal lineto, relative\n            x += current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'H': // horizontal lineto, absolute\n            x = current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'v': // vertical lineto, relative\n            y += current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'V': // verical lineto, absolute\n            y = current[1];\n            ctx.lineTo(x + l, y + t);\n            break;\n\n          case 'm': // moveTo, relative\n            x += current[1];\n            y += current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            ctx.moveTo(x + l, y + t);\n            break;\n\n          case 'M': // moveTo, absolute\n            x = current[1];\n            y = current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            ctx.moveTo(x + l, y + t);\n            break;\n\n          case 'c': // bezierCurveTo, relative\n            tempX = x + current[5];\n            tempY = y + current[6];\n            controlX = x + current[3];\n            controlY = y + current[4];\n            ctx.bezierCurveTo(\n              x + current[1] + l, // x1\n              y + current[2] + t, // y1\n              controlX + l, // x2\n              controlY + t, // y2\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'C': // bezierCurveTo, absolute\n            x = current[5];\n            y = current[6];\n            controlX = current[3];\n            controlY = current[4];\n            ctx.bezierCurveTo(\n              current[1] + l,\n              current[2] + t,\n              controlX + l,\n              controlY + t,\n              x + l,\n              y + t\n            );\n            break;\n\n          case 's': // shorthand cubic bezierCurveTo, relative\n\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            ctx.bezierCurveTo(\n              controlX + l,\n              controlY + t,\n              x + current[1] + l,\n              y + current[2] + t,\n              tempX + l,\n              tempY + t\n            );\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = x + current[1];\n            controlY = y + current[2];\n\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'S': // shorthand cubic bezierCurveTo, absolute\n            tempX = current[3];\n            tempY = current[4];\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            ctx.bezierCurveTo(\n              controlX + l,\n              controlY + t,\n              current[1] + l,\n              current[2] + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = current[1];\n            controlY = current[2];\n\n            break;\n\n          case 'q': // quadraticCurveTo, relative\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n\n            controlX = x + current[1];\n            controlY = y + current[2];\n\n            ctx.quadraticCurveTo(\n              controlX + l,\n              controlY + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'Q': // quadraticCurveTo, absolute\n            tempX = current[3];\n            tempY = current[4];\n\n            ctx.quadraticCurveTo(\n              current[1] + l,\n              current[2] + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            controlX = current[1];\n            controlY = current[2];\n            break;\n\n          case 't': // shorthand quadraticCurveTo, relative\n\n            // transform to absolute x,y\n            tempX = x + current[1];\n            tempY = y + current[2];\n\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            ctx.quadraticCurveTo(\n              controlX + l,\n              controlY + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n\n            break;\n\n          case 'T':\n            tempX = current[1];\n            tempY = current[2];\n\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            ctx.quadraticCurveTo(\n              controlX + l,\n              controlY + t,\n              tempX + l,\n              tempY + t\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'a':\n            // TODO: optimize this\n            drawArc(ctx, x + l, y + t, [\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6] + x + l,\n              current[7] + y + t\n            ]);\n            x += current[6];\n            y += current[7];\n            break;\n\n          case 'A':\n            // TODO: optimize this\n            drawArc(ctx, x + l, y + t, [\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6] + l,\n              current[7] + t\n            ]);\n            x = current[6];\n            y = current[7];\n            break;\n\n          case 'z':\n          case 'Z':\n            x = subpathStartX;\n            y = subpathStartY;\n            ctx.closePath();\n            break;\n        }\n        previous = current;\n      }\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx context to render path on\n     */\n    _render: function(ctx) {\n      this._renderPathCommands(ctx);\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * Returns string representation of an instance\n     * @return {String} string representation of an instance\n     */\n    toString: function() {\n      return '#<fabric.Path (' + this.complexity() +\n        '): { \"top\": ' + this.top + ', \"left\": ' + this.left + ' }>';\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return extend(this.callSuper('toObject', propertiesToInclude), {\n        path: this.path.map(function(item) { return item.slice(); }),\n      });\n    },\n\n    /**\n     * Returns dataless object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toDatalessObject: function(propertiesToInclude) {\n      var o = this.toObject(['sourcePath'].concat(propertiesToInclude));\n      if (o.sourcePath) {\n        delete o.path;\n      }\n      return o;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var path = this.path.map(function(path) {\n        return path.join(' ');\n      }).join(' ');\n      return [\n        '<path ', 'COMMON_PARTS',\n        'd=\"', path,\n        '\" stroke-linecap=\"round\" ',\n        '/>\\n'\n      ];\n    },\n\n    _getOffsetTransform: function() {\n      var digits = fabric.Object.NUM_FRACTION_DIGITS;\n      return ' translate(' + toFixed(-this.pathOffset.x, digits) + ', ' +\n          toFixed(-this.pathOffset.y, digits) + ')';\n    },\n\n    /**\n     * Returns svg clipPath representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toClipPathSVG: function(reviver) {\n      var additionalTransform = this._getOffsetTransform();\n      return '\\t' + this._createBaseClipPathSVGMarkup(\n        this._toSVG(), { reviver: reviver, additionalTransform: additionalTransform }\n      );\n    },\n\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toSVG: function(reviver) {\n      var additionalTransform = this._getOffsetTransform();\n      return this._createBaseSVGMarkup(this._toSVG(), { reviver: reviver, additionalTransform: additionalTransform  });\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns number representation of an instance complexity\n     * @return {Number} complexity of this instance\n     */\n    complexity: function() {\n      return this.path.length;\n    },\n\n    /**\n     * @private\n     */\n    _parsePath: function() {\n      var result = [],\n          coords = [],\n          currentPath,\n          parsed,\n          re = fabric.rePathCommand,\n          match,\n          coordsStr;\n\n      for (var i = 0, coordsParsed, len = this.path.length; i < len; i++) {\n        currentPath = this.path[i];\n\n        coordsStr = currentPath.slice(1).trim();\n        coords.length = 0;\n\n        while ((match = re.exec(coordsStr))) {\n          coords.push(match[0]);\n        }\n\n        coordsParsed = [currentPath.charAt(0)];\n\n        for (var j = 0, jlen = coords.length; j < jlen; j++) {\n          parsed = parseFloat(coords[j]);\n          if (!isNaN(parsed)) {\n            coordsParsed.push(parsed);\n          }\n        }\n\n        var command = coordsParsed[0],\n            commandLength = commandLengths[command.toLowerCase()],\n            repeatedCommand = repeatedCommands[command] || command;\n\n        if (coordsParsed.length - 1 > commandLength) {\n          for (var k = 1, klen = coordsParsed.length; k < klen; k += commandLength) {\n            result.push([command].concat(coordsParsed.slice(k, k + commandLength)));\n            command = repeatedCommand;\n          }\n        }\n        else {\n          result.push(coordsParsed);\n        }\n      }\n\n      return result;\n    },\n\n    /**\n     * @private\n     */\n    _calcDimensions: function() {\n\n      var aX = [],\n          aY = [],\n          current, // current instruction\n          previous = null,\n          subpathStartX = 0,\n          subpathStartY = 0,\n          x = 0, // current x\n          y = 0, // current y\n          controlX = 0, // current control point x\n          controlY = 0, // current control point y\n          tempX,\n          tempY,\n          bounds;\n\n      for (var i = 0, len = this.path.length; i < len; ++i) {\n\n        current = this.path[i];\n\n        switch (current[0]) { // first letter\n\n          case 'l': // lineto, relative\n            x += current[1];\n            y += current[2];\n            bounds = [];\n            break;\n\n          case 'L': // lineto, absolute\n            x = current[1];\n            y = current[2];\n            bounds = [];\n            break;\n\n          case 'h': // horizontal lineto, relative\n            x += current[1];\n            bounds = [];\n            break;\n\n          case 'H': // horizontal lineto, absolute\n            x = current[1];\n            bounds = [];\n            break;\n\n          case 'v': // vertical lineto, relative\n            y += current[1];\n            bounds = [];\n            break;\n\n          case 'V': // verical lineto, absolute\n            y = current[1];\n            bounds = [];\n            break;\n\n          case 'm': // moveTo, relative\n            x += current[1];\n            y += current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            bounds = [];\n            break;\n\n          case 'M': // moveTo, absolute\n            x = current[1];\n            y = current[2];\n            subpathStartX = x;\n            subpathStartY = y;\n            bounds = [];\n            break;\n\n          case 'c': // bezierCurveTo, relative\n            tempX = x + current[5];\n            tempY = y + current[6];\n            controlX = x + current[3];\n            controlY = y + current[4];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              x + current[1], // x1\n              y + current[2], // y1\n              controlX, // x2\n              controlY, // y2\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'C': // bezierCurveTo, absolute\n            controlX = current[3];\n            controlY = current[4];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              current[1],\n              current[2],\n              controlX,\n              controlY,\n              current[5],\n              current[6]\n            );\n            x = current[5];\n            y = current[6];\n            break;\n\n          case 's': // shorthand cubic bezierCurveTo, relative\n\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              x + current[1],\n              y + current[2],\n              tempX,\n              tempY\n            );\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = x + current[1];\n            controlY = y + current[2];\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'S': // shorthand cubic bezierCurveTo, absolute\n            tempX = current[3];\n            tempY = current[4];\n            if (previous[0].match(/[CcSs]/) === null) {\n              // If there is no previous command or if the previous command was not a C, c, S, or s,\n              // the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control points\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              current[1],\n              current[2],\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            // set control point to 2nd one of this command\n            // \"... the first control point is assumed to be\n            // the reflection of the second control point on\n            // the previous command relative to the current point.\"\n            controlX = current[1];\n            controlY = current[2];\n            break;\n\n          case 'q': // quadraticCurveTo, relative\n            // transform to absolute x,y\n            tempX = x + current[3];\n            tempY = y + current[4];\n            controlX = x + current[1];\n            controlY = y + current[2];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'Q': // quadraticCurveTo, absolute\n            controlX = current[1];\n            controlY = current[2];\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              current[3],\n              current[4]\n            );\n            x = current[3];\n            y = current[4];\n            break;\n\n          case 't': // shorthand quadraticCurveTo, relative\n            // transform to absolute x,y\n            tempX = x + current[1];\n            tempY = y + current[2];\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n\n            break;\n\n          case 'T':\n            tempX = current[1];\n            tempY = current[2];\n\n            if (previous[0].match(/[QqTt]/) === null) {\n              // If there is no previous command or if the previous command was not a Q, q, T or t,\n              // assume the control point is coincident with the current point\n              controlX = x;\n              controlY = y;\n            }\n            else {\n              // calculate reflection of previous control point\n              controlX = 2 * x - controlX;\n              controlY = 2 * y - controlY;\n            }\n            bounds = fabric.util.getBoundsOfCurve(x, y,\n              controlX,\n              controlY,\n              controlX,\n              controlY,\n              tempX,\n              tempY\n            );\n            x = tempX;\n            y = tempY;\n            break;\n\n          case 'a':\n            // TODO: optimize this\n            bounds = fabric.util.getBoundsOfArc(x, y,\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6] + x,\n              current[7] + y\n            );\n            x += current[6];\n            y += current[7];\n            break;\n\n          case 'A':\n            // TODO: optimize this\n            bounds = fabric.util.getBoundsOfArc(x, y,\n              current[1],\n              current[2],\n              current[3],\n              current[4],\n              current[5],\n              current[6],\n              current[7]\n            );\n            x = current[6];\n            y = current[7];\n            break;\n\n          case 'z':\n          case 'Z':\n            x = subpathStartX;\n            y = subpathStartY;\n            break;\n        }\n        previous = current;\n        bounds.forEach(function (point) {\n          aX.push(point.x);\n          aY.push(point.y);\n        });\n        aX.push(x);\n        aY.push(y);\n      }\n\n      var minX = min(aX) || 0,\n          minY = min(aY) || 0,\n          maxX = max(aX) || 0,\n          maxY = max(aY) || 0,\n          deltaX = maxX - minX,\n          deltaY = maxY - minY;\n\n      return {\n        left: minX,\n        top: minY,\n        width: deltaX,\n        height: deltaY\n      };\n    }\n  });\n\n  /**\n   * Creates an instance of fabric.Path from an object\n   * @static\n   * @memberOf fabric.Path\n   * @param {Object} object\n   * @param {Function} [callback] Callback to invoke when an fabric.Path instance is created\n   */\n  fabric.Path.fromObject = function(object, callback) {\n    if (typeof object.sourcePath === 'string') {\n      var pathUrl = object.sourcePath;\n      fabric.loadSVGFromURL(pathUrl, function (elements) {\n        var path = elements[0];\n        path.setOptions(object);\n        callback && callback(path);\n      });\n    }\n    else {\n      fabric.Object._fromObject('Path', object, callback, 'path');\n    }\n  };\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by `fabric.Path.fromElement`)\n   * @static\n   * @memberOf fabric.Path\n   * @see http://www.w3.org/TR/SVG/paths.html#PathElement\n   */\n  fabric.Path.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat(['d']);\n\n  /**\n   * Creates an instance of fabric.Path from an SVG <path> element\n   * @static\n   * @memberOf fabric.Path\n   * @param {SVGElement} element to parse\n   * @param {Function} callback Callback to invoke when an fabric.Path instance is created\n   * @param {Object} [options] Options object\n   * @param {Function} [callback] Options callback invoked after parsing is finished\n   */\n  fabric.Path.fromElement = function(element, callback, options) {\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Path.ATTRIBUTE_NAMES);\n    parsedAttributes.fromSVG = true;\n    callback(new fabric.Path(parsedAttributes.d, extend(parsedAttributes, options)));\n  };\n  /* _FROM_SVG_END_ */\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      min = fabric.util.array.min,\n      max = fabric.util.array.max;\n\n  if (fabric.Group) {\n    return;\n  }\n\n  /**\n   * Group class\n   * @class fabric.Group\n   * @extends fabric.Object\n   * @mixes fabric.Collection\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#groups}\n   * @see {@link fabric.Group#initialize} for constructor definition\n   */\n  fabric.Group = fabric.util.createClass(fabric.Object, fabric.Collection, /** @lends fabric.Group.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'group',\n\n    /**\n     * Width of stroke\n     * @type Number\n     * @default\n     */\n    strokeWidth: 0,\n\n    /**\n     * Indicates if click, mouseover, mouseout events & hoverCursor should also check for subtargets\n     * @type Boolean\n     * @default\n     */\n    subTargetCheck: false,\n\n    /**\n     * Groups are container, do not render anything on theyr own, ence no cache properties\n     * @type Array\n     * @default\n     */\n    cacheProperties: [],\n\n    /**\n     * setOnGroup is a method used for TextBox that is no more used since 2.0.0 The behavior is still\n     * available setting this boolean to true.\n     * @type Boolean\n     * @since 2.0.0\n     * @default\n     */\n    useSetOnGroup: false,\n\n    /**\n     * Constructor\n     * @param {Object} objects Group objects\n     * @param {Object} [options] Options object\n     * @param {Boolean} [isAlreadyGrouped] if true, objects have been grouped already.\n     * @return {Object} thisArg\n     */\n    initialize: function(objects, options, isAlreadyGrouped) {\n      options = options || {};\n      this._objects = [];\n      // if objects enclosed in a group have been grouped already,\n      // we cannot change properties of objects.\n      // Thus we need to set options to group without objects,\n      isAlreadyGrouped && this.callSuper('initialize', options);\n      this._objects = objects || [];\n      for (var i = this._objects.length; i--; ) {\n        this._objects[i].group = this;\n      }\n\n      if (!isAlreadyGrouped) {\n        var center = options && options.centerPoint;\n        // we want to set origins before calculating the bounding box.\n        // so that the topleft can be set with that in mind.\n        // if specific top and left are passed, are overwritten later\n        // with the callSuper('initialize', options)\n        if (options.originX !== undefined) {\n          this.originX = options.originX;\n        }\n        if (options.originY !== undefined) {\n          this.originY = options.originY;\n        }\n        // if coming from svg i do not want to calc bounds.\n        // i assume width and height are passed along options\n        center || this._calcBounds();\n        this._updateObjectsCoords(center);\n        delete options.centerPoint;\n        this.callSuper('initialize', options);\n      }\n      else {\n        this._updateObjectsACoords();\n      }\n\n      this.setCoords();\n    },\n\n    /**\n     * @private\n     * @param {Boolean} [skipCoordsChange] if true, coordinates of objects enclosed in a group do not change\n     */\n    _updateObjectsACoords: function() {\n      var ignoreZoom = true, skipAbsolute = true;\n      for (var i = this._objects.length; i--; ){\n        this._objects[i].setCoords(ignoreZoom, skipAbsolute);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Boolean} [skipCoordsChange] if true, coordinates of objects enclosed in a group do not change\n     */\n    _updateObjectsCoords: function(center) {\n      var center = center || this.getCenterPoint();\n      for (var i = this._objects.length; i--; ){\n        this._updateObjectCoords(this._objects[i], center);\n      }\n    },\n\n    /**\n     * @private\n     * @param {Object} object\n     * @param {fabric.Point} center, current center of group.\n     */\n    _updateObjectCoords: function(object, center) {\n      var objectLeft = object.left,\n          objectTop = object.top,\n          ignoreZoom = true, skipAbsolute = true;\n\n      object.set({\n        left: objectLeft - center.x,\n        top: objectTop - center.y\n      });\n      object.group = this;\n      object.setCoords(ignoreZoom, skipAbsolute);\n    },\n\n    /**\n     * Returns string represenation of a group\n     * @return {String}\n     */\n    toString: function() {\n      return '#<fabric.Group: (' + this.complexity() + ')>';\n    },\n\n    /**\n     * Adds an object to a group; Then recalculates group's dimension, position.\n     * @param {Object} object\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    addWithUpdate: function(object) {\n      this._restoreObjectsState();\n      fabric.util.resetObjectTransform(this);\n      if (object) {\n        this._objects.push(object);\n        object.group = this;\n        object._set('canvas', this.canvas);\n      }\n      this._calcBounds();\n      this._updateObjectsCoords();\n      this.setCoords();\n      this.dirty = true;\n      return this;\n    },\n\n    /**\n     * Removes an object from a group; Then recalculates group's dimension, position.\n     * @param {Object} object\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    removeWithUpdate: function(object) {\n      this._restoreObjectsState();\n      fabric.util.resetObjectTransform(this);\n\n      this.remove(object);\n      this._calcBounds();\n      this._updateObjectsCoords();\n      this.setCoords();\n      this.dirty = true;\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _onObjectAdded: function(object) {\n      this.dirty = true;\n      object.group = this;\n      object._set('canvas', this.canvas);\n    },\n\n    /**\n     * @private\n     */\n    _onObjectRemoved: function(object) {\n      this.dirty = true;\n      delete object.group;\n    },\n\n    /**\n     * @private\n     */\n    _set: function(key, value) {\n      var i = this._objects.length;\n      if (this.useSetOnGroup) {\n        while (i--) {\n          this._objects[i].setOnGroup(key, value);\n        }\n      }\n      if (key === 'canvas') {\n        while (i--) {\n          this._objects[i]._set(key, value);\n        }\n      }\n      fabric.Object.prototype._set.call(this, key, value);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var _includeDefaultValues = this.includeDefaultValues;\n      var objsToObject = this._objects.map(function(obj) {\n        var originalDefaults = obj.includeDefaultValues;\n        obj.includeDefaultValues = _includeDefaultValues;\n        var _obj = obj.toObject(propertiesToInclude);\n        obj.includeDefaultValues = originalDefaults;\n        return _obj;\n      });\n      var obj = fabric.Object.prototype.toObject.call(this, propertiesToInclude);\n      obj.objects = objsToObject;\n      return obj;\n    },\n\n    /**\n     * Returns object representation of an instance, in dataless mode.\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toDatalessObject: function(propertiesToInclude) {\n      var objsToObject, sourcePath = this.sourcePath;\n      if (sourcePath) {\n        objsToObject = sourcePath;\n      }\n      else {\n        var _includeDefaultValues = this.includeDefaultValues;\n        objsToObject = this._objects.map(function(obj) {\n          var originalDefaults = obj.includeDefaultValues;\n          obj.includeDefaultValues = _includeDefaultValues;\n          var _obj = obj.toDatalessObject(propertiesToInclude);\n          obj.includeDefaultValues = originalDefaults;\n          return _obj;\n        });\n      }\n      var obj = fabric.Object.prototype.toDatalessObject.call(this, propertiesToInclude);\n      obj.objects = objsToObject;\n      return obj;\n    },\n\n    /**\n     * Renders instance on a given context\n     * @param {CanvasRenderingContext2D} ctx context to render instance on\n     */\n    render: function(ctx) {\n      this._transformDone = true;\n      this.callSuper('render', ctx);\n      this._transformDone = false;\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group is already cached.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      var ownCache = fabric.Object.prototype.shouldCache.call(this);\n      if (ownCache) {\n        for (var i = 0, len = this._objects.length; i < len; i++) {\n          if (this._objects[i].willDrawShadow()) {\n            this.ownCaching = false;\n            return false;\n          }\n        }\n      }\n      return ownCache;\n    },\n\n    /**\n     * Check if this object or a child object will cast a shadow\n     * @return {Boolean}\n     */\n    willDrawShadow: function() {\n      if (fabric.Object.prototype.willDrawShadow.call(this)) {\n        return true;\n      }\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        if (this._objects[i].willDrawShadow()) {\n          return true;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Check if this group or its parent group are caching, recursively up\n     * @return {Boolean}\n     */\n    isOnACache: function() {\n      return this.ownCaching || (this.group && this.group.isOnACache());\n    },\n\n    /**\n     * Execute the drawing operation for an object on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    drawObject: function(ctx) {\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        this._objects[i].render(ctx);\n      }\n      this._drawClipPath(ctx);\n    },\n\n    /**\n     * Check if cache is dirty\n     */\n    isCacheDirty: function(skipCanvas) {\n      if (this.callSuper('isCacheDirty', skipCanvas)) {\n        return true;\n      }\n      if (!this.statefullCache) {\n        return false;\n      }\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        if (this._objects[i].isCacheDirty(true)) {\n          if (this._cacheCanvas) {\n            // if this group has not a cache canvas there is nothing to clean\n            var x = this.cacheWidth / this.zoomX, y = this.cacheHeight / this.zoomY;\n            this._cacheContext.clearRect(-x / 2, -y / 2, x, y);\n          }\n          return true;\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Retores original state of each of group objects (original state is that which was before group was created).\n     * @private\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    _restoreObjectsState: function() {\n      this._objects.forEach(this._restoreObjectState, this);\n      return this;\n    },\n\n    /**\n     * Realises the transform from this group onto the supplied object\n     * i.e. it tells you what would happen if the supplied object was in\n     * the group, and then the group was destroyed. It mutates the supplied\n     * object.\n     * @param {fabric.Object} object\n     * @return {fabric.Object} transformedObject\n     */\n    realizeTransform: function(object) {\n      var matrix = object.calcTransformMatrix(),\n          options = fabric.util.qrDecompose(matrix),\n          center = new fabric.Point(options.translateX, options.translateY);\n      object.flipX = false;\n      object.flipY = false;\n      object.set('scaleX', options.scaleX);\n      object.set('scaleY', options.scaleY);\n      object.skewX = options.skewX;\n      object.skewY = options.skewY;\n      object.angle = options.angle;\n      object.setPositionByOrigin(center, 'center', 'center');\n      return object;\n    },\n\n    /**\n     * Restores original state of a specified object in group\n     * @private\n     * @param {fabric.Object} object\n     * @return {fabric.Group} thisArg\n     */\n    _restoreObjectState: function(object) {\n      this.realizeTransform(object);\n      object.setCoords();\n      delete object.group;\n      return this;\n    },\n\n    /**\n     * Destroys a group (restoring state of its objects)\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    destroy: function() {\n      // when group is destroyed objects needs to get a repaint to be eventually\n      // displayed on canvas.\n      this._objects.forEach(function(object) {\n        object.set('dirty', true);\n      });\n      return this._restoreObjectsState();\n    },\n\n    /**\n     * make a group an active selection, remove the group from canvas\n     * the group has to be on canvas for this to work.\n     * @return {fabric.ActiveSelection} thisArg\n     * @chainable\n     */\n    toActiveSelection: function() {\n      if (!this.canvas) {\n        return;\n      }\n      var objects = this._objects, canvas = this.canvas;\n      this._objects = [];\n      var options = this.toObject();\n      delete options.objects;\n      var activeSelection = new fabric.ActiveSelection([]);\n      activeSelection.set(options);\n      activeSelection.type = 'activeSelection';\n      canvas.remove(this);\n      objects.forEach(function(object) {\n        object.group = activeSelection;\n        object.dirty = true;\n        canvas.add(object);\n      });\n      activeSelection.canvas = canvas;\n      activeSelection._objects = objects;\n      canvas._activeObject = activeSelection;\n      activeSelection.setCoords();\n      return activeSelection;\n    },\n\n    /**\n     * Destroys a group (restoring state of its objects)\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    ungroupOnCanvas: function() {\n      return this._restoreObjectsState();\n    },\n\n    /**\n     * Sets coordinates of all objects inside group\n     * @return {fabric.Group} thisArg\n     * @chainable\n     */\n    setObjectsCoords: function() {\n      var ignoreZoom = true, skipAbsolute = true;\n      this.forEachObject(function(object) {\n        object.setCoords(ignoreZoom, skipAbsolute);\n      });\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _calcBounds: function(onlyWidthHeight) {\n      var aX = [],\n          aY = [],\n          o, prop,\n          props = ['tr', 'br', 'bl', 'tl'],\n          i = 0, iLen = this._objects.length,\n          j, jLen = props.length,\n          ignoreZoom = true;\n\n      for ( ; i < iLen; ++i) {\n        o = this._objects[i];\n        o.setCoords(ignoreZoom);\n        for (j = 0; j < jLen; j++) {\n          prop = props[j];\n          aX.push(o.oCoords[prop].x);\n          aY.push(o.oCoords[prop].y);\n        }\n      }\n\n      this._getBounds(aX, aY, onlyWidthHeight);\n    },\n\n    /**\n     * @private\n     */\n    _getBounds: function(aX, aY, onlyWidthHeight) {\n      var minXY = new fabric.Point(min(aX), min(aY)),\n          maxXY = new fabric.Point(max(aX), max(aY)),\n          top = minXY.y || 0, left = minXY.x || 0,\n          width = (maxXY.x - minXY.x) || 0,\n          height = (maxXY.y - minXY.y) || 0;\n      this.width = width;\n      this.height = height;\n      if (!onlyWidthHeight) {\n        // the bounding box always finds the topleft most corner.\n        // whatever is the group origin, we set up here the left/top position.\n        this.setPositionByOrigin({ x: left, y: top }, 'left', 'top');\n      }\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    _toSVG: function(reviver) {\n      var svgString = ['<g ', 'COMMON_PARTS', ' >\\n'];\n\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        svgString.push('\\t\\t', this._objects[i].toSVG(reviver));\n      }\n      svgString.push('</g>\\n');\n      return svgString;\n    },\n\n    /**\n     * Returns styles-string for svg-export, specific version for group\n     * @return {String}\n     */\n    getSvgStyles: function() {\n      var opacity = typeof this.opacity !== 'undefined' && this.opacity !== 1 ?\n            'opacity: ' + this.opacity + ';' : '',\n          visibility = this.visible ? '' : ' visibility: hidden;';\n      return [\n        opacity,\n        this.getSvgFilter(),\n        visibility\n      ].join('');\n    },\n\n    /**\n     * Returns svg clipPath representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toClipPathSVG: function(reviver) {\n      var svgString = [];\n\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        svgString.push('\\t', this._objects[i].toClipPathSVG(reviver));\n      }\n\n      return this._createBaseClipPathSVGMarkup(svgString, { reviver: reviver });\n    },\n    /* _TO_SVG_END_ */\n  });\n\n  /**\n   * Returns {@link fabric.Group} instance from an object representation\n   * @static\n   * @memberOf fabric.Group\n   * @param {Object} object Object to create a group from\n   * @param {Function} [callback] Callback to invoke when an group instance is created\n   */\n  fabric.Group.fromObject = function(object, callback) {\n    var objects = object.objects,\n        options = fabric.util.object.clone(object, true);\n    delete options.objects;\n    if (typeof objects === 'string') {\n      // it has to be an url or something went wrong.\n      fabric.loadSVGFromURL(objects, function (elements) {\n        var group = fabric.util.groupSVGElements(elements, object, objects);\n        group.set(options);\n        callback && callback(group);\n      });\n      return;\n    }\n    fabric.util.enlivenObjects(objects, function(enlivenedObjects) {\n      fabric.util.enlivenObjects([object.clipPath], function(enlivedClipPath) {\n        var options = fabric.util.object.clone(object, true);\n        options.clipPath = enlivedClipPath[0];\n        delete options.objects;\n        callback && callback(new fabric.Group(enlivenedObjects, options, true));\n      });\n    });\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { });\n\n  if (fabric.ActiveSelection) {\n    return;\n  }\n\n  /**\n   * Group class\n   * @class fabric.ActiveSelection\n   * @extends fabric.Group\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-3#groups}\n   * @see {@link fabric.ActiveSelection#initialize} for constructor definition\n   */\n  fabric.ActiveSelection = fabric.util.createClass(fabric.Group, /** @lends fabric.ActiveSelection.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'activeSelection',\n\n    /**\n     * Constructor\n     * @param {Object} objects ActiveSelection objects\n     * @param {Object} [options] Options object\n     * @return {Object} thisArg\n     */\n    initialize: function(objects, options) {\n      options = options || {};\n      this._objects = objects || [];\n      for (var i = this._objects.length; i--; ) {\n        this._objects[i].group = this;\n      }\n\n      if (options.originX) {\n        this.originX = options.originX;\n      }\n      if (options.originY) {\n        this.originY = options.originY;\n      }\n      this._calcBounds();\n      this._updateObjectsCoords();\n      fabric.Object.prototype.initialize.call(this, options);\n      this.setCoords();\n    },\n\n    /**\n     * Change te activeSelection to a normal group,\n     * High level function that automatically adds it to canvas as\n     * active object. no events fired.\n     * @since 2.0.0\n     * @return {fabric.Group}\n     */\n    toGroup: function() {\n      var objects = this._objects.concat();\n      this._objects = [];\n      var options = fabric.Object.prototype.toObject.call(this);\n      var newGroup = new fabric.Group([]);\n      delete options.type;\n      newGroup.set(options);\n      objects.forEach(function(object) {\n        object.canvas.remove(object);\n        object.group = newGroup;\n      });\n      newGroup._objects = objects;\n      if (!this.canvas) {\n        return newGroup;\n      }\n      var canvas = this.canvas;\n      canvas.add(newGroup);\n      canvas._activeObject = newGroup;\n      newGroup.setCoords();\n      return newGroup;\n    },\n\n    /**\n     * If returns true, deselection is cancelled.\n     * @since 2.0.0\n     * @return {Boolean} [cancel]\n     */\n    onDeselect: function() {\n      this.destroy();\n      return false;\n    },\n\n    /**\n     * Returns string representation of a group\n     * @return {String}\n     */\n    toString: function() {\n      return '#<fabric.ActiveSelection: (' + this.complexity() + ')>';\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * objectCaching is a global flag, wins over everything\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group outside is cached.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      return false;\n    },\n\n    /**\n     * Check if this group or its parent group are caching, recursively up\n     * @return {Boolean}\n     */\n    isOnACache: function() {\n      return false;\n    },\n\n    /**\n     * Renders controls and borders for the object\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} [styleOverride] properties to override the object style\n     * @param {Object} [childrenOverride] properties to override the children overrides\n     */\n    _renderControls: function(ctx, styleOverride, childrenOverride) {\n      ctx.save();\n      ctx.globalAlpha = this.isMoving ? this.borderOpacityWhenMoving : 1;\n      this.callSuper('_renderControls', ctx, styleOverride);\n      childrenOverride = childrenOverride || { };\n      if (typeof childrenOverride.hasControls === 'undefined') {\n        childrenOverride.hasControls = false;\n      }\n      if (typeof childrenOverride.hasRotatingPoint === 'undefined') {\n        childrenOverride.hasRotatingPoint = false;\n      }\n      childrenOverride.forActiveSelection = true;\n      for (var i = 0, len = this._objects.length; i < len; i++) {\n        this._objects[i]._renderControls(ctx, childrenOverride);\n      }\n      ctx.restore();\n    },\n  });\n\n  /**\n   * Returns {@link fabric.ActiveSelection} instance from an object representation\n   * @static\n   * @memberOf fabric.ActiveSelection\n   * @param {Object} object Object to create a group from\n   * @param {Function} [callback] Callback to invoke when an ActiveSelection instance is created\n   */\n  fabric.ActiveSelection.fromObject = function(object, callback) {\n    fabric.util.enlivenObjects(object.objects, function(enlivenedObjects) {\n      delete object.objects;\n      callback && callback(new fabric.ActiveSelection(enlivenedObjects, object, true));\n    });\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var extend = fabric.util.object.extend;\n\n  if (!global.fabric) {\n    global.fabric = { };\n  }\n\n  if (global.fabric.Image) {\n    fabric.warn('fabric.Image is already defined.');\n    return;\n  }\n\n  /**\n   * Image class\n   * @class fabric.Image\n   * @extends fabric.Object\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-1#images}\n   * @see {@link fabric.Image#initialize} for constructor definition\n   */\n  fabric.Image = fabric.util.createClass(fabric.Object, /** @lends fabric.Image.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'image',\n\n    /**\n     * crossOrigin value (one of \"\", \"anonymous\", \"use-credentials\")\n     * @see https://developer.mozilla.org/en-US/docs/HTML/CORS_settings_attributes\n     * @type String\n     * @default\n     */\n    crossOrigin: '',\n\n    /**\n     * Width of a stroke.\n     * For image quality a stroke multiple of 2 gives better results.\n     * @type Number\n     * @default\n     */\n    strokeWidth: 0,\n\n    /**\n     * When calling {@link fabric.Image.getSrc}, return value from element src with `element.getAttribute('src')`.\n     * This allows for relative urls as image src.\n     * @since 2.7.0\n     * @type Boolean\n     * @default\n     */\n    srcFromAttribute: false,\n\n    /**\n     * private\n     * contains last value of scaleX to detect\n     * if the Image got resized after the last Render\n     * @type Number\n     */\n    _lastScaleX: 1,\n\n    /**\n     * private\n     * contains last value of scaleY to detect\n     * if the Image got resized after the last Render\n     * @type Number\n     */\n    _lastScaleY: 1,\n\n    /**\n     * private\n     * contains last value of scaling applied by the apply filter chain\n     * @type Number\n     */\n    _filterScalingX: 1,\n\n    /**\n     * private\n     * contains last value of scaling applied by the apply filter chain\n     * @type Number\n     */\n    _filterScalingY: 1,\n\n    /**\n     * minimum scale factor under which any resizeFilter is triggered to resize the image\n     * 0 will disable the automatic resize. 1 will trigger automatically always.\n     * number bigger than 1 are not implemented yet.\n     * @type Number\n     */\n    minimumScaleTrigger: 0.5,\n\n    /**\n     * List of properties to consider when checking if\n     * state of an object is changed ({@link fabric.Object#hasStateChanged})\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: fabric.Object.prototype.stateProperties.concat('cropX', 'cropY'),\n\n    /**\n     * key used to retrieve the texture representing this image\n     * @since 2.0.0\n     * @type String\n     * @default\n     */\n    cacheKey: '',\n\n    /**\n     * Image crop in pixels from original image size.\n     * @since 2.0.0\n     * @type Number\n     * @default\n     */\n    cropX: 0,\n\n    /**\n     * Image crop in pixels from original image size.\n     * @since 2.0.0\n     * @type Number\n     * @default\n     */\n    cropY: 0,\n\n    /**\n     * Constructor\n     * @param {HTMLImageElement | String} element Image element\n     * @param {Object} [options] Options object\n     * @param {function} [callback] callback function to call after eventual filters applied.\n     * @return {fabric.Image} thisArg\n     */\n    initialize: function(element, options) {\n      options || (options = { });\n      this.filters = [];\n      this.cacheKey = 'texture' + fabric.Object.__uid++;\n      this.callSuper('initialize', options);\n      this._initElement(element, options);\n    },\n\n    /**\n     * Returns image element which this instance if based on\n     * @return {HTMLImageElement} Image element\n     */\n    getElement: function() {\n      return this._element || {};\n    },\n\n    /**\n     * Sets image element for this instance to a specified one.\n     * If filters defined they are applied to new image.\n     * You might need to call `canvas.renderAll` and `object.setCoords` after replacing, to render new image and update controls area.\n     * @param {HTMLImageElement} element\n     * @param {Object} [options] Options object\n     * @return {fabric.Image} thisArg\n     * @chainable\n     */\n    setElement: function(element, options) {\n      this.removeTexture(this.cacheKey);\n      this.removeTexture(this.cacheKey + '_filtered');\n      this._element = element;\n      this._originalElement = element;\n      this._initConfig(options);\n      if (this.filters.length !== 0) {\n        this.applyFilters();\n      }\n      // resizeFilters work on the already filtered copy.\n      // we need to apply resizeFilters AFTER normal filters.\n      // applyResizeFilters is run more often than normal fiters\n      // and is triggered by user interactions rather than dev code\n      if (this.resizeFilter) {\n        this.applyResizeFilters();\n      }\n      return this;\n    },\n\n    /**\n     * Delete a single texture if in webgl mode\n     */\n    removeTexture: function(key) {\n      var backend = fabric.filterBackend;\n      if (backend && backend.evictCachesForKey) {\n        backend.evictCachesForKey(key);\n      }\n    },\n\n    /**\n     * Delete textures, reference to elements and eventually JSDOM cleanup\n     */\n    dispose: function() {\n      this.removeTexture(this.cacheKey);\n      this.removeTexture(this.cacheKey + '_filtered');\n      this._cacheContext = undefined;\n      ['_originalElement', '_element', '_filteredEl', '_cacheCanvas'].forEach((function(element) {\n        fabric.util.cleanUpJsdomNode(this[element]);\n        this[element] = undefined;\n      }).bind(this));\n    },\n\n    /**\n     * Sets crossOrigin value (on an instance and corresponding image element)\n     * @return {fabric.Image} thisArg\n     * @chainable\n     */\n    setCrossOrigin: function(value) {\n      this.crossOrigin = value;\n      this._element.crossOrigin = value;\n\n      return this;\n    },\n\n    /**\n     * Returns original size of an image\n     * @return {Object} Object with \"width\" and \"height\" properties\n     */\n    getOriginalSize: function() {\n      var element = this.getElement();\n      return {\n        width: element.naturalWidth || element.width,\n        height: element.naturalHeight || element.height\n      };\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _stroke: function(ctx) {\n      if (!this.stroke || this.strokeWidth === 0) {\n        return;\n      }\n      var w = this.width / 2, h = this.height / 2;\n      ctx.beginPath();\n      ctx.moveTo(-w, -h);\n      ctx.lineTo(w, -h);\n      ctx.lineTo(w, h);\n      ctx.lineTo(-w, h);\n      ctx.lineTo(-w, -h);\n      ctx.closePath();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderDashedStroke: function(ctx) {\n      var x = -this.width / 2,\n          y = -this.height / 2,\n          w = this.width,\n          h = this.height;\n\n      ctx.save();\n      this._setStrokeStyles(ctx, this);\n\n      ctx.beginPath();\n      fabric.util.drawDashedLine(ctx, x, y, x + w, y, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y, x + w, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x + w, y + h, x, y + h, this.strokeDashArray);\n      fabric.util.drawDashedLine(ctx, x, y + h, x, y, this.strokeDashArray);\n      ctx.closePath();\n      ctx.restore();\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var filters = [];\n\n      this.filters.forEach(function(filterObj) {\n        if (filterObj) {\n          filters.push(filterObj.toObject());\n        }\n      });\n      var object = extend(\n        this.callSuper(\n          'toObject',\n          ['crossOrigin', 'cropX', 'cropY'].concat(propertiesToInclude)\n        ), {\n          src: this.getSrc(),\n          filters: filters,\n        });\n      if (this.resizeFilter) {\n        object.resizeFilter = this.resizeFilter.toObject();\n      }\n      return object;\n    },\n\n    /**\n     * Returns true if an image has crop applied, inspecting values of cropX,cropY,width,hight.\n     * @return {Boolean}\n     */\n    hasCrop: function() {\n      return this.cropX || this.cropY || this.width < this._element.width || this.height < this._element.height;\n    },\n\n    /* _TO_SVG_START_ */\n    /**\n     * Returns svg representation of an instance\n     * @return {Array} an array of strings with the specific svg representation\n     * of the instance\n     */\n    _toSVG: function() {\n      var svgString = [], imageMarkup = [], strokeSvg,\n          x = -this.width / 2, y = -this.height / 2, clipPath = '';\n      if (this.hasCrop()) {\n        var clipPathId = fabric.Object.__uid++;\n        svgString.push(\n          '<clipPath id=\"imageCrop_' + clipPathId + '\">\\n',\n          '\\t<rect x=\"' + x + '\" y=\"' + y + '\" width=\"' + this.width + '\" height=\"' + this.height + '\" />\\n',\n          '</clipPath>\\n'\n        );\n        clipPath = ' clip-path=\"url(#imageCrop_' + clipPathId + ')\" ';\n      }\n      imageMarkup.push('\\t<image ', 'COMMON_PARTS', 'xlink:href=\"', this.getSvgSrc(true),\n        '\" x=\"', x - this.cropX, '\" y=\"', y - this.cropY,\n        // we're essentially moving origin of transformation from top/left corner to the center of the shape\n        // by wrapping it in container <g> element with actual transformation, then offsetting object to the top/left\n        // so that object's center aligns with container's left/top\n        '\" width=\"', this._element.width || this._element.naturalWidth,\n        '\" height=\"', this._element.height || this._element.height,\n        '\"', clipPath,\n        '></image>\\n');\n\n      if (this.stroke || this.strokeDashArray) {\n        var origFill = this.fill;\n        this.fill = null;\n        strokeSvg = [\n          '\\t<rect ',\n          'x=\"', x, '\" y=\"', y,\n          '\" width=\"', this.width, '\" height=\"', this.height,\n          '\" style=\"', this.getSvgStyles(),\n          '\"/>\\n'\n        ];\n        this.fill = origFill;\n      }\n      if (this.paintFirst !== 'fill') {\n        svgString = svgString.concat(strokeSvg, imageMarkup);\n      }\n      else {\n        svgString = svgString.concat(imageMarkup, strokeSvg);\n      }\n      return svgString;\n    },\n    /* _TO_SVG_END_ */\n\n    /**\n     * Returns source of an image\n     * @param {Boolean} filtered indicates if the src is needed for svg\n     * @return {String} Source of an image\n     */\n    getSrc: function(filtered) {\n      var element = filtered ? this._element : this._originalElement;\n      if (element) {\n        if (element.toDataURL) {\n          return element.toDataURL();\n        }\n\n        if (this.srcFromAttribute) {\n          return element.getAttribute('src');\n        }\n        else {\n          return element.src;\n        }\n      }\n      else {\n        return this.src || '';\n      }\n    },\n\n    /**\n     * Sets source of an image\n     * @param {String} src Source string (URL)\n     * @param {Function} [callback] Callback is invoked when image has been loaded (and all filters have been applied)\n     * @param {Object} [options] Options object\n     * @return {fabric.Image} thisArg\n     * @chainable\n     */\n    setSrc: function(src, callback, options) {\n      fabric.util.loadImage(src, function(img) {\n        this.setElement(img, options);\n        this._setWidthHeight();\n        callback && callback(this);\n      }, this, options && options.crossOrigin);\n      return this;\n    },\n\n    /**\n     * Returns string representation of an instance\n     * @return {String} String representation of an instance\n     */\n    toString: function() {\n      return '#<fabric.Image: { src: \"' + this.getSrc() + '\" }>';\n    },\n\n    applyResizeFilters: function() {\n      var filter = this.resizeFilter,\n          minimumScale = this.minimumScaleTrigger,\n          objectScale = this.getTotalObjectScaling(),\n          scaleX = objectScale.scaleX,\n          scaleY = objectScale.scaleY,\n          elementToFilter = this._filteredEl || this._originalElement;\n      if (this.group) {\n        this.set('dirty', true);\n      }\n      if (!filter || (scaleX > minimumScale && scaleY > minimumScale)) {\n        this._element = elementToFilter;\n        this._filterScalingX = 1;\n        this._filterScalingY = 1;\n        this._lastScaleX = scaleX;\n        this._lastScaleY = scaleY;\n        return;\n      }\n      if (!fabric.filterBackend) {\n        fabric.filterBackend = fabric.initFilterBackend();\n      }\n      var canvasEl = fabric.util.createCanvasElement(),\n          cacheKey = this._filteredEl ? (this.cacheKey + '_filtered') : this.cacheKey,\n          sourceWidth = elementToFilter.width, sourceHeight = elementToFilter.height;\n      canvasEl.width = sourceWidth;\n      canvasEl.height = sourceHeight;\n      this._element = canvasEl;\n      this._lastScaleX = filter.scaleX = scaleX;\n      this._lastScaleY = filter.scaleY = scaleY;\n      fabric.filterBackend.applyFilters(\n        [filter], elementToFilter, sourceWidth, sourceHeight, this._element, cacheKey);\n      this._filterScalingX = canvasEl.width / this._originalElement.width;\n      this._filterScalingY = canvasEl.height / this._originalElement.height;\n    },\n\n    /**\n     * Applies filters assigned to this image (from \"filters\" array) or from filter param\n     * @method applyFilters\n     * @param {Array} filters to be applied\n     * @param {Boolean} forResizing specify if the filter operation is a resize operation\n     * @return {thisArg} return the fabric.Image object\n     * @chainable\n     */\n    applyFilters: function(filters) {\n\n      filters = filters || this.filters || [];\n      filters = filters.filter(function(filter) { return filter && !filter.isNeutralState(); });\n      this.set('dirty', true);\n\n      // needs to clear out or WEBGL will not resize correctly\n      this.removeTexture(this.cacheKey + '_filtered');\n\n      if (filters.length === 0) {\n        this._element = this._originalElement;\n        this._filteredEl = null;\n        this._filterScalingX = 1;\n        this._filterScalingY = 1;\n        return this;\n      }\n\n      var imgElement = this._originalElement,\n          sourceWidth = imgElement.naturalWidth || imgElement.width,\n          sourceHeight = imgElement.naturalHeight || imgElement.height;\n\n      if (this._element === this._originalElement) {\n        // if the element is the same we need to create a new element\n        var canvasEl = fabric.util.createCanvasElement();\n        canvasEl.width = sourceWidth;\n        canvasEl.height = sourceHeight;\n        this._element = canvasEl;\n        this._filteredEl = canvasEl;\n      }\n      else {\n        // clear the existing element to get new filter data\n        // also dereference the eventual resized _element\n        this._element = this._filteredEl;\n        this._filteredEl.getContext('2d').clearRect(0, 0, sourceWidth, sourceHeight);\n        // we also need to resize again at next renderAll, so remove saved _lastScaleX/Y\n        this._lastScaleX = 1;\n        this._lastScaleY = 1;\n      }\n      if (!fabric.filterBackend) {\n        fabric.filterBackend = fabric.initFilterBackend();\n      }\n      fabric.filterBackend.applyFilters(\n        filters, this._originalElement, sourceWidth, sourceHeight, this._element, this.cacheKey);\n      if (this._originalElement.width !== this._element.width ||\n        this._originalElement.height !== this._element.height) {\n        this._filterScalingX = this._element.width / this._originalElement.width;\n        this._filterScalingY = this._element.height / this._originalElement.height;\n      }\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      if (this.isMoving !== true && this.resizeFilter && this._needsResize()) {\n        this.applyResizeFilters();\n      }\n      this._stroke(ctx);\n      this._renderPaintInOrder(ctx);\n    },\n\n    /**\n     * Decide if the object should cache or not. Create its own cache level\n     * needsItsOwnCache should be used when the object drawing method requires\n     * a cache step. None of the fabric classes requires it.\n     * Generally you do not cache objects in groups because the group outside is cached.\n     * This is the special image version where we would like to avoid caching where possible.\n     * Essentially images do not benefit from caching. They may require caching, and in that\n     * case we do it. Also caching an image usually ends in a loss of details.\n     * A full performance audit should be done.\n     * @return {Boolean}\n     */\n    shouldCache: function() {\n      return this.needsItsOwnCache();\n    },\n\n    _renderFill: function(ctx) {\n      var elementToDraw = this._element,\n          w = this.width, h = this.height,\n          sW = Math.min(elementToDraw.naturalWidth || elementToDraw.width, w * this._filterScalingX),\n          sH = Math.min(elementToDraw.naturalHeight || elementToDraw.height, h * this._filterScalingY),\n          x = -w / 2, y = -h / 2,\n          sX = Math.max(0, this.cropX * this._filterScalingX),\n          sY = Math.max(0, this.cropY * this._filterScalingY);\n\n      elementToDraw && ctx.drawImage(elementToDraw, sX, sY, sW, sH, x, y, w, h);\n    },\n\n    /**\n     * needed to check if image needs resize\n     * @private\n     */\n    _needsResize: function() {\n      var scale = this.getTotalObjectScaling();\n      return (scale.scaleX !== this._lastScaleX || scale.scaleY !== this._lastScaleY);\n    },\n\n    /**\n     * @private\n     */\n    _resetWidthHeight: function() {\n      this.set(this.getOriginalSize());\n    },\n\n    /**\n     * The Image class's initialization method. This method is automatically\n     * called by the constructor.\n     * @private\n     * @param {HTMLImageElement|String} element The element representing the image\n     * @param {Object} [options] Options object\n     */\n    _initElement: function(element, options) {\n      this.setElement(fabric.util.getById(element), options);\n      fabric.util.addClass(this.getElement(), fabric.Image.CSS_CANVAS);\n    },\n\n    /**\n     * @private\n     * @param {Object} [options] Options object\n     */\n    _initConfig: function(options) {\n      options || (options = { });\n      this.setOptions(options);\n      this._setWidthHeight(options);\n      if (this._element && this.crossOrigin) {\n        this._element.crossOrigin = this.crossOrigin;\n      }\n    },\n\n    /**\n     * @private\n     * @param {Array} filters to be initialized\n     * @param {Function} callback Callback to invoke when all fabric.Image.filters instances are created\n     */\n    _initFilters: function(filters, callback) {\n      if (filters && filters.length) {\n        fabric.util.enlivenObjects(filters, function(enlivenedObjects) {\n          callback && callback(enlivenedObjects);\n        }, 'fabric.Image.filters');\n      }\n      else {\n        callback && callback();\n      }\n    },\n\n    /**\n     * @private\n     * Set the width and the height of the image object, using the element or the\n     * options.\n     * @param {Object} [options] Object with width/height properties\n     */\n    _setWidthHeight: function(options) {\n      options || (options = { });\n      var el = this.getElement();\n      this.width = options.width || el.naturalWidth || el.width || 0;\n      this.height = options.height || el.naturalHeight || el.height || 0;\n    },\n\n    /**\n     * Calculate offset for center and scale factor for the image in order to respect\n     * the preserveAspectRatio attribute\n     * @private\n     * @return {Object}\n     */\n    parsePreserveAspectRatioAttribute: function() {\n      var pAR = fabric.util.parsePreserveAspectRatioAttribute(this.preserveAspectRatio || ''),\n          rWidth = this._element.width, rHeight = this._element.height,\n          scaleX = 1, scaleY = 1, offsetLeft = 0, offsetTop = 0, cropX = 0, cropY = 0,\n          offset, pWidth = this.width, pHeight = this.height, parsedAttributes = { width: pWidth, height: pHeight };\n      if (pAR && (pAR.alignX !== 'none' || pAR.alignY !== 'none')) {\n        if (pAR.meetOrSlice === 'meet') {\n          scaleX = scaleY = fabric.util.findScaleToFit(this._element, parsedAttributes);\n          offset = (pWidth - rWidth * scaleX) / 2;\n          if (pAR.alignX === 'Min') {\n            offsetLeft = -offset;\n          }\n          if (pAR.alignX === 'Max') {\n            offsetLeft = offset;\n          }\n          offset = (pHeight - rHeight * scaleY) / 2;\n          if (pAR.alignY === 'Min') {\n            offsetTop = -offset;\n          }\n          if (pAR.alignY === 'Max') {\n            offsetTop = offset;\n          }\n        }\n        if (pAR.meetOrSlice === 'slice') {\n          scaleX = scaleY = fabric.util.findScaleToCover(this._element, parsedAttributes);\n          offset = rWidth - pWidth / scaleX;\n          if (pAR.alignX === 'Mid') {\n            cropX = offset / 2;\n          }\n          if (pAR.alignX === 'Max') {\n            cropX = offset;\n          }\n          offset = rHeight - pHeight / scaleY;\n          if (pAR.alignY === 'Mid') {\n            cropY = offset / 2;\n          }\n          if (pAR.alignY === 'Max') {\n            cropY = offset;\n          }\n          rWidth = pWidth / scaleX;\n          rHeight = pHeight / scaleY;\n        }\n      }\n      else {\n        scaleX = pWidth / rWidth;\n        scaleY = pHeight / rHeight;\n      }\n      return {\n        width: rWidth,\n        height: rHeight,\n        scaleX: scaleX,\n        scaleY: scaleY,\n        offsetLeft: offsetLeft,\n        offsetTop: offsetTop,\n        cropX: cropX,\n        cropY: cropY\n      };\n    }\n  });\n\n  /**\n   * Default CSS class name for canvas\n   * @static\n   * @type String\n   * @default\n   */\n  fabric.Image.CSS_CANVAS = 'canvas-img';\n\n  /**\n   * Alias for getSrc\n   * @static\n   */\n  fabric.Image.prototype.getSvgSrc = fabric.Image.prototype.getSrc;\n\n  /**\n   * Creates an instance of fabric.Image from its object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} callback Callback to invoke when an image instance is created\n   */\n  fabric.Image.fromObject = function(_object, callback) {\n    var object = fabric.util.object.clone(_object);\n    fabric.util.loadImage(object.src, function(img, error) {\n      if (error) {\n        callback && callback(null, error);\n        return;\n      }\n      fabric.Image.prototype._initFilters.call(object, object.filters, function(filters) {\n        object.filters = filters || [];\n        fabric.Image.prototype._initFilters.call(object, [object.resizeFilter], function(resizeFilters) {\n          object.resizeFilter = resizeFilters[0];\n          fabric.util.enlivenObjects([object.clipPath], function(enlivedProps) {\n            object.clipPath = enlivedProps[0];\n            var image = new fabric.Image(img, object);\n            callback(image);\n          });\n        });\n      });\n    }, null, object.crossOrigin);\n  };\n\n  /**\n   * Creates an instance of fabric.Image from an URL string\n   * @static\n   * @param {String} url URL to create an image from\n   * @param {Function} [callback] Callback to invoke when image is created (newly created image is passed as a first argument)\n   * @param {Object} [imgOptions] Options object\n   */\n  fabric.Image.fromURL = function(url, callback, imgOptions) {\n    fabric.util.loadImage(url, function(img) {\n      callback && callback(new fabric.Image(img, imgOptions));\n    }, null, imgOptions && imgOptions.crossOrigin);\n  };\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Image.fromElement})\n   * @static\n   * @see {@link http://www.w3.org/TR/SVG/struct.html#ImageElement}\n   */\n  fabric.Image.ATTRIBUTE_NAMES =\n    fabric.SHARED_ATTRIBUTES.concat('x y width height preserveAspectRatio xlink:href crossOrigin'.split(' '));\n\n  /**\n   * Returns {@link fabric.Image} instance from an SVG element\n   * @static\n   * @param {SVGElement} element Element to parse\n   * @param {Object} [options] Options object\n   * @param {Function} callback Callback to execute when fabric.Image object is created\n   * @return {fabric.Image} Instance of fabric.Image\n   */\n  fabric.Image.fromElement = function(element, callback, options) {\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Image.ATTRIBUTE_NAMES);\n    fabric.Image.fromURL(parsedAttributes['xlink:href'], callback,\n      extend((options ? fabric.util.object.clone(options) : { }), parsedAttributes));\n  };\n  /* _FROM_SVG_END_ */\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\nfabric.util.object.extend(fabric.Object.prototype, /** @lends fabric.Object.prototype */ {\n\n  /**\n   * @private\n   * @return {Number} angle value\n   */\n  _getAngleValueForStraighten: function() {\n    var angle = this.angle % 360;\n    if (angle > 0) {\n      return Math.round((angle - 1) / 90) * 90;\n    }\n    return Math.round(angle / 90) * 90;\n  },\n\n  /**\n   * Straightens an object (rotating it from current angle to one of 0, 90, 180, 270, etc. depending on which is closer)\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  straighten: function() {\n    this.rotate(this._getAngleValueForStraighten());\n    return this;\n  },\n\n  /**\n   * Same as {@link fabric.Object.prototype.straighten} but with animation\n   * @param {Object} callbacks Object with callback functions\n   * @param {Function} [callbacks.onComplete] Invoked on completion\n   * @param {Function} [callbacks.onChange] Invoked on every step of animation\n   * @return {fabric.Object} thisArg\n   * @chainable\n   */\n  fxStraighten: function(callbacks) {\n    callbacks = callbacks || { };\n\n    var empty = function() { },\n        onComplete = callbacks.onComplete || empty,\n        onChange = callbacks.onChange || empty,\n        _this = this;\n\n    fabric.util.animate({\n      startValue: this.get('angle'),\n      endValue: this._getAngleValueForStraighten(),\n      duration: this.FX_DURATION,\n      onChange: function(value) {\n        _this.rotate(value);\n        onChange();\n      },\n      onComplete: function() {\n        _this.setCoords();\n        onComplete();\n      },\n    });\n\n    return this;\n  }\n});\n\nfabric.util.object.extend(fabric.StaticCanvas.prototype, /** @lends fabric.StaticCanvas.prototype */ {\n\n  /**\n   * Straightens object, then rerenders canvas\n   * @param {fabric.Object} object Object to straighten\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  straightenObject: function (object) {\n    object.straighten();\n    this.requestRenderAll();\n    return this;\n  },\n\n  /**\n   * Same as {@link fabric.Canvas.prototype.straightenObject}, but animated\n   * @param {fabric.Object} object Object to straighten\n   * @return {fabric.Canvas} thisArg\n   * @chainable\n   */\n  fxStraightenObject: function (object) {\n    object.fxStraighten({\n      onChange: this.requestRenderAllBound\n    });\n    return this;\n  }\n});\n\n\n(function() {\n\n  'use strict';\n\n  /**\n   * Tests if webgl supports certain precision\n   * @param {WebGL} Canvas WebGL context to test on\n   * @param {String} Precision to test can be any of following: 'lowp', 'mediump', 'highp'\n   * @returns {Boolean} Whether the user's browser WebGL supports given precision.\n   */\n  function testPrecision(gl, precision){\n    var fragmentSource = 'precision ' + precision + ' float;\\nvoid main(){}';\n    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);\n    gl.shaderSource(fragmentShader, fragmentSource);\n    gl.compileShader(fragmentShader);\n    if (!gl.getShaderParameter(fragmentShader, gl.COMPILE_STATUS)) {\n      return false;\n    }\n    return true;\n  }\n\n  /**\n   * Indicate whether this filtering backend is supported by the user's browser.\n   * @param {Number} tileSize check if the tileSize is supported\n   * @returns {Boolean} Whether the user's browser supports WebGL.\n   */\n  fabric.isWebglSupported = function(tileSize) {\n    if (fabric.isLikelyNode) {\n      return false;\n    }\n    tileSize = tileSize || fabric.WebglFilterBackend.prototype.tileSize;\n    var canvas = document.createElement('canvas');\n    var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');\n    var isSupported = false;\n    // eslint-disable-next-line\n    if (gl) {\n      fabric.maxTextureSize = gl.getParameter(gl.MAX_TEXTURE_SIZE);\n      isSupported = fabric.maxTextureSize >= tileSize;\n      var precisions = ['highp', 'mediump', 'lowp'];\n      for (var i = 0; i < 3; i++){\n        if (testPrecision(gl, precisions[i])){\n          fabric.webGlPrecision = precisions[i];\n          break;\n        };\n      }\n    }\n    this.isSupported = isSupported;\n    return isSupported;\n  };\n\n  fabric.WebglFilterBackend = WebglFilterBackend;\n\n  /**\n   * WebGL filter backend.\n   */\n  function WebglFilterBackend(options) {\n    if (options && options.tileSize) {\n      this.tileSize = options.tileSize;\n    }\n    this.setupGLContext(this.tileSize, this.tileSize);\n    this.captureGPUInfo();\n  };\n\n  WebglFilterBackend.prototype = /** @lends fabric.WebglFilterBackend.prototype */ {\n\n    tileSize: 2048,\n\n    /**\n     * Experimental. This object is a sort of repository of help layers used to avoid\n     * of recreating them during frequent filtering. If you are previewing a filter with\n     * a slider you problably do not want to create help layers every filter step.\n     * in this object there will be appended some canvases, created once, resized sometimes\n     * cleared never. Clearing is left to the developer.\n     **/\n    resources: {\n\n    },\n\n    /**\n     * Setup a WebGL context suitable for filtering, and bind any needed event handlers.\n     */\n    setupGLContext: function(width, height) {\n      this.dispose();\n      this.createWebGLCanvas(width, height);\n      // eslint-disable-next-line\n      this.aPosition = new Float32Array([0, 0, 0, 1, 1, 0, 1, 1]);\n      this.chooseFastestCopyGLTo2DMethod(width, height);\n    },\n\n    /**\n     * Pick a method to copy data from GL context to 2d canvas.  In some browsers using\n     * putImageData is faster than drawImage for that specific operation.\n     */\n    chooseFastestCopyGLTo2DMethod: function(width, height) {\n      var canMeasurePerf = typeof window.performance !== 'undefined', canUseImageData;\n      try {\n        new ImageData(1, 1);\n        canUseImageData = true;\n      }\n      catch (e) {\n        canUseImageData = false;\n      }\n      // eslint-disable-next-line no-undef\n      var canUseArrayBuffer = typeof ArrayBuffer !== 'undefined';\n      // eslint-disable-next-line no-undef\n      var canUseUint8Clamped = typeof Uint8ClampedArray !== 'undefined';\n\n      if (!(canMeasurePerf && canUseImageData && canUseArrayBuffer && canUseUint8Clamped)) {\n        return;\n      }\n\n      var targetCanvas = fabric.util.createCanvasElement();\n      // eslint-disable-next-line no-undef\n      var imageBuffer = new ArrayBuffer(width * height * 4);\n      if (fabric.forceGLPutImageData) {\n        this.imageBuffer = imageBuffer;\n        this.copyGLTo2D = copyGLTo2DPutImageData;\n        return;\n      }\n      var testContext = {\n        imageBuffer: imageBuffer,\n        destinationWidth: width,\n        destinationHeight: height,\n        targetCanvas: targetCanvas\n      };\n      var startTime, drawImageTime, putImageDataTime;\n      targetCanvas.width = width;\n      targetCanvas.height = height;\n\n      startTime = window.performance.now();\n      copyGLTo2DDrawImage.call(testContext, this.gl, testContext);\n      drawImageTime = window.performance.now() - startTime;\n\n      startTime = window.performance.now();\n      copyGLTo2DPutImageData.call(testContext, this.gl, testContext);\n      putImageDataTime = window.performance.now() - startTime;\n\n      if (drawImageTime > putImageDataTime) {\n        this.imageBuffer = imageBuffer;\n        this.copyGLTo2D = copyGLTo2DPutImageData;\n      }\n      else {\n        this.copyGLTo2D = copyGLTo2DDrawImage;\n      }\n    },\n\n    /**\n     * Create a canvas element and associated WebGL context and attaches them as\n     * class properties to the GLFilterBackend class.\n     */\n    createWebGLCanvas: function(width, height) {\n      var canvas = fabric.util.createCanvasElement();\n      canvas.width = width;\n      canvas.height = height;\n      var glOptions = {\n            alpha: true,\n            premultipliedAlpha: false,\n            depth: false,\n            stencil: false,\n            antialias: false\n          },\n          gl = canvas.getContext('webgl', glOptions);\n      if (!gl) {\n        gl = canvas.getContext('experimental-webgl', glOptions);\n      }\n      if (!gl) {\n        return;\n      }\n      gl.clearColor(0, 0, 0, 0);\n      // this canvas can fire webglcontextlost and webglcontextrestored\n      this.canvas = canvas;\n      this.gl = gl;\n    },\n\n    /**\n     * Attempts to apply the requested filters to the source provided, drawing the filtered output\n     * to the provided target canvas.\n     *\n     * @param {Array} filters The filters to apply.\n     * @param {HTMLImageElement|HTMLCanvasElement} source The source to be filtered.\n     * @param {Number} width The width of the source input.\n     * @param {Number} height The height of the source input.\n     * @param {HTMLCanvasElement} targetCanvas The destination for filtered output to be drawn.\n     * @param {String|undefined} cacheKey A key used to cache resources related to the source. If\n     * omitted, caching will be skipped.\n     */\n    applyFilters: function(filters, source, width, height, targetCanvas, cacheKey) {\n      var gl = this.gl;\n      var cachedTexture;\n      if (cacheKey) {\n        cachedTexture = this.getCachedTexture(cacheKey, source);\n      }\n      var pipelineState = {\n        originalWidth: source.width || source.originalWidth,\n        originalHeight: source.height || source.originalHeight,\n        sourceWidth: width,\n        sourceHeight: height,\n        destinationWidth: width,\n        destinationHeight: height,\n        context: gl,\n        sourceTexture: this.createTexture(gl, width, height, !cachedTexture && source),\n        targetTexture: this.createTexture(gl, width, height),\n        originalTexture: cachedTexture ||\n          this.createTexture(gl, width, height, !cachedTexture && source),\n        passes: filters.length,\n        webgl: true,\n        aPosition: this.aPosition,\n        programCache: this.programCache,\n        pass: 0,\n        filterBackend: this,\n        targetCanvas: targetCanvas\n      };\n      var tempFbo = gl.createFramebuffer();\n      gl.bindFramebuffer(gl.FRAMEBUFFER, tempFbo);\n      filters.forEach(function(filter) { filter && filter.applyTo(pipelineState); });\n      resizeCanvasIfNeeded(pipelineState);\n      this.copyGLTo2D(gl, pipelineState);\n      gl.bindTexture(gl.TEXTURE_2D, null);\n      gl.deleteTexture(pipelineState.sourceTexture);\n      gl.deleteTexture(pipelineState.targetTexture);\n      gl.deleteFramebuffer(tempFbo);\n      targetCanvas.getContext('2d').setTransform(1, 0, 0, 1, 0, 0);\n      return pipelineState;\n    },\n\n    /**\n     * Detach event listeners, remove references, and clean up caches.\n     */\n    dispose: function() {\n      if (this.canvas) {\n        this.canvas = null;\n        this.gl = null;\n      }\n      this.clearWebGLCaches();\n    },\n\n    /**\n     * Wipe out WebGL-related caches.\n     */\n    clearWebGLCaches: function() {\n      this.programCache = {};\n      this.textureCache = {};\n    },\n\n    /**\n     * Create a WebGL texture object.\n     *\n     * Accepts specific dimensions to initialize the textuer to or a source image.\n     *\n     * @param {WebGLRenderingContext} gl The GL context to use for creating the texture.\n     * @param {Number} width The width to initialize the texture at.\n     * @param {Number} height The height to initialize the texture.\n     * @param {HTMLImageElement|HTMLCanvasElement} textureImageSource A source for the texture data.\n     * @returns {WebGLTexture}\n     */\n    createTexture: function(gl, width, height, textureImageSource) {\n      var texture = gl.createTexture();\n      gl.bindTexture(gl.TEXTURE_2D, texture);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);\n      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);\n      if (textureImageSource) {\n        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, textureImageSource);\n      }\n      else {\n        gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);\n      }\n      return texture;\n    },\n\n    /**\n     * Can be optionally used to get a texture from the cache array\n     *\n     * If an existing texture is not found, a new texture is created and cached.\n     *\n     * @param {String} uniqueId A cache key to use to find an existing texture.\n     * @param {HTMLImageElement|HTMLCanvasElement} textureImageSource A source to use to create the\n     * texture cache entry if one does not already exist.\n     */\n    getCachedTexture: function(uniqueId, textureImageSource) {\n      if (this.textureCache[uniqueId]) {\n        return this.textureCache[uniqueId];\n      }\n      else {\n        var texture = this.createTexture(\n          this.gl, textureImageSource.width, textureImageSource.height, textureImageSource);\n        this.textureCache[uniqueId] = texture;\n        return texture;\n      }\n    },\n\n    /**\n     * Clear out cached resources related to a source image that has been\n     * filtered previously.\n     *\n     * @param {String} cacheKey The cache key provided when the source image was filtered.\n     */\n    evictCachesForKey: function(cacheKey) {\n      if (this.textureCache[cacheKey]) {\n        this.gl.deleteTexture(this.textureCache[cacheKey]);\n        delete this.textureCache[cacheKey];\n      }\n    },\n\n    copyGLTo2D: copyGLTo2DDrawImage,\n\n    /**\n     * Attempt to extract GPU information strings from a WebGL context.\n     *\n     * Useful information when debugging or blacklisting specific GPUs.\n     *\n     * @returns {Object} A GPU info object with renderer and vendor strings.\n     */\n    captureGPUInfo: function() {\n      if (this.gpuInfo) {\n        return this.gpuInfo;\n      }\n      var gl = this.gl, gpuInfo = { renderer: '', vendor: '' };\n      if (!gl) {\n        return gpuInfo;\n      }\n      var ext = gl.getExtension('WEBGL_debug_renderer_info');\n      if (ext) {\n        var renderer = gl.getParameter(ext.UNMASKED_RENDERER_WEBGL);\n        var vendor = gl.getParameter(ext.UNMASKED_VENDOR_WEBGL);\n        if (renderer) {\n          gpuInfo.renderer = renderer.toLowerCase();\n        }\n        if (vendor) {\n          gpuInfo.vendor = vendor.toLowerCase();\n        }\n      }\n      this.gpuInfo = gpuInfo;\n      return gpuInfo;\n    },\n  };\n})();\n\nfunction resizeCanvasIfNeeded(pipelineState) {\n  var targetCanvas = pipelineState.targetCanvas,\n      width = targetCanvas.width, height = targetCanvas.height,\n      dWidth = pipelineState.destinationWidth,\n      dHeight = pipelineState.destinationHeight;\n\n  if (width !== dWidth || height !== dHeight) {\n    targetCanvas.width = dWidth;\n    targetCanvas.height = dHeight;\n  }\n}\n\n/**\n * Copy an input WebGL canvas on to an output 2D canvas.\n *\n * The WebGL canvas is assumed to be upside down, with the top-left pixel of the\n * desired output image appearing in the bottom-left corner of the WebGL canvas.\n *\n * @param {WebGLRenderingContext} sourceContext The WebGL context to copy from.\n * @param {HTMLCanvasElement} targetCanvas The 2D target canvas to copy on to.\n * @param {Object} pipelineState The 2D target canvas to copy on to.\n */\nfunction copyGLTo2DDrawImage(gl, pipelineState) {\n  var glCanvas = gl.canvas, targetCanvas = pipelineState.targetCanvas,\n      ctx = targetCanvas.getContext('2d');\n  ctx.translate(0, targetCanvas.height); // move it down again\n  ctx.scale(1, -1); // vertical flip\n  // where is my image on the big glcanvas?\n  var sourceY = glCanvas.height - targetCanvas.height;\n  ctx.drawImage(glCanvas, 0, sourceY, targetCanvas.width, targetCanvas.height, 0, 0,\n    targetCanvas.width, targetCanvas.height);\n}\n\n/**\n * Copy an input WebGL canvas on to an output 2D canvas using 2d canvas' putImageData\n * API. Measurably faster than using ctx.drawImage in Firefox (version 54 on OSX Sierra).\n *\n * @param {WebGLRenderingContext} sourceContext The WebGL context to copy from.\n * @param {HTMLCanvasElement} targetCanvas The 2D target canvas to copy on to.\n * @param {Object} pipelineState The 2D target canvas to copy on to.\n */\nfunction copyGLTo2DPutImageData(gl, pipelineState) {\n  var targetCanvas = pipelineState.targetCanvas, ctx = targetCanvas.getContext('2d'),\n      dWidth = pipelineState.destinationWidth,\n      dHeight = pipelineState.destinationHeight,\n      numBytes = dWidth * dHeight * 4;\n\n  // eslint-disable-next-line no-undef\n  var u8 = new Uint8Array(this.imageBuffer, 0, numBytes);\n  // eslint-disable-next-line no-undef\n  var u8Clamped = new Uint8ClampedArray(this.imageBuffer, 0, numBytes);\n\n  gl.readPixels(0, 0, dWidth, dHeight, gl.RGBA, gl.UNSIGNED_BYTE, u8);\n  var imgData = new ImageData(u8Clamped, dWidth, dHeight);\n  ctx.putImageData(imgData, 0, 0);\n}\n\n\n(function() {\n\n  'use strict';\n\n  var noop = function() {};\n\n  fabric.Canvas2dFilterBackend = Canvas2dFilterBackend;\n\n  /**\n   * Canvas 2D filter backend.\n   */\n  function Canvas2dFilterBackend() {};\n\n  Canvas2dFilterBackend.prototype = /** @lends fabric.Canvas2dFilterBackend.prototype */ {\n    evictCachesForKey: noop,\n    dispose: noop,\n    clearWebGLCaches: noop,\n\n    /**\n     * Experimental. This object is a sort of repository of help layers used to avoid\n     * of recreating them during frequent filtering. If you are previewing a filter with\n     * a slider you probably do not want to create help layers every filter step.\n     * in this object there will be appended some canvases, created once, resized sometimes\n     * cleared never. Clearing is left to the developer.\n     **/\n    resources: {\n\n    },\n\n    /**\n     * Apply a set of filters against a source image and draw the filtered output\n     * to the provided destination canvas.\n     *\n     * @param {EnhancedFilter} filters The filter to apply.\n     * @param {HTMLImageElement|HTMLCanvasElement} sourceElement The source to be filtered.\n     * @param {Number} sourceWidth The width of the source input.\n     * @param {Number} sourceHeight The height of the source input.\n     * @param {HTMLCanvasElement} targetCanvas The destination for filtered output to be drawn.\n     */\n    applyFilters: function(filters, sourceElement, sourceWidth, sourceHeight, targetCanvas) {\n      var ctx = targetCanvas.getContext('2d');\n      ctx.drawImage(sourceElement, 0, 0, sourceWidth, sourceHeight);\n      var imageData = ctx.getImageData(0, 0, sourceWidth, sourceHeight);\n      var originalImageData = ctx.getImageData(0, 0, sourceWidth, sourceHeight);\n      var pipelineState = {\n        sourceWidth: sourceWidth,\n        sourceHeight: sourceHeight,\n        imageData: imageData,\n        originalEl: sourceElement,\n        originalImageData: originalImageData,\n        canvasEl: targetCanvas,\n        ctx: ctx,\n        filterBackend: this,\n      };\n      filters.forEach(function(filter) { filter.applyTo(pipelineState); });\n      if (pipelineState.imageData.width !== sourceWidth || pipelineState.imageData.height !== sourceHeight) {\n        targetCanvas.width = pipelineState.imageData.width;\n        targetCanvas.height = pipelineState.imageData.height;\n      }\n      ctx.putImageData(pipelineState.imageData, 0, 0);\n      return pipelineState;\n    },\n\n  };\n})();\n\n\n/**\n * @namespace fabric.Image.filters\n * @memberOf fabric.Image\n * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#image_filters}\n * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n */\nfabric.Image = fabric.Image || { };\nfabric.Image.filters = fabric.Image.filters || { };\n\n/**\n * Root filter class from which all filter classes inherit from\n * @class fabric.Image.filters.BaseFilter\n * @memberOf fabric.Image.filters\n */\nfabric.Image.filters.BaseFilter = fabric.util.createClass(/** @lends fabric.Image.filters.BaseFilter.prototype */ {\n\n  /**\n   * Filter type\n   * @param {String} type\n   * @default\n   */\n  type: 'BaseFilter',\n\n  /**\n   * Array of attributes to send with buffers. do not modify\n   * @private\n   */\n\n  vertexSource: 'attribute vec2 aPosition;\\n' +\n    'varying vec2 vTexCoord;\\n' +\n    'void main() {\\n' +\n      'vTexCoord = aPosition;\\n' +\n      'gl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\\n' +\n    '}',\n\n  fragmentSource: 'precision highp float;\\n' +\n    'varying vec2 vTexCoord;\\n' +\n    'uniform sampler2D uTexture;\\n' +\n    'void main() {\\n' +\n      'gl_FragColor = texture2D(uTexture, vTexCoord);\\n' +\n    '}',\n\n  /**\n   * Constructor\n   * @param {Object} [options] Options object\n   */\n  initialize: function(options) {\n    if (options) {\n      this.setOptions(options);\n    }\n  },\n\n  /**\n   * Sets filter's properties from options\n   * @param {Object} [options] Options object\n   */\n  setOptions: function(options) {\n    for (var prop in options) {\n      this[prop] = options[prop];\n    }\n  },\n\n  /**\n   * Compile this filter's shader program.\n   *\n   * @param {WebGLRenderingContext} gl The GL canvas context to use for shader compilation.\n   * @param {String} fragmentSource fragmentShader source for compilation\n   * @param {String} vertexSource vertexShader source for compilation\n   */\n  createProgram: function(gl, fragmentSource, vertexSource) {\n    fragmentSource = fragmentSource || this.fragmentSource;\n    vertexSource = vertexSource || this.vertexSource;\n    if (fabric.webGlPrecision !== 'highp'){\n      fragmentSource = fragmentSource.replace(\n        /precision highp float/g,\n        'precision ' + fabric.webGlPrecision + ' float'\n      );\n    }\n    var vertexShader = gl.createShader(gl.VERTEX_SHADER);\n    gl.shaderSource(vertexShader, vertexSource);\n    gl.compileShader(vertexShader);\n    if (!gl.getShaderParameter(vertexShader, gl.COMPILE_STATUS)) {\n      throw new Error(\n        // eslint-disable-next-line prefer-template\n        'Vertex shader compile error for ' + this.type + ': ' +\n        gl.getShaderInfoLog(vertexShader)\n      );\n    }\n\n    var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);\n    gl.shaderSource(fragmentShader, fragmentSource);\n    gl.compileShader(fragmentShader);\n    if (!gl.getShaderParameter(fragmentShader, gl.COMPILE_STATUS)) {\n      throw new Error(\n        // eslint-disable-next-line prefer-template\n        'Fragment shader compile error for ' + this.type + ': ' +\n        gl.getShaderInfoLog(fragmentShader)\n      );\n    }\n\n    var program = gl.createProgram();\n    gl.attachShader(program, vertexShader);\n    gl.attachShader(program, fragmentShader);\n    gl.linkProgram(program);\n    if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {\n      throw new Error(\n        // eslint-disable-next-line prefer-template\n        'Shader link error for \"${this.type}\" ' +\n        gl.getProgramInfoLog(program)\n      );\n    }\n\n    var attributeLocations = this.getAttributeLocations(gl, program);\n    var uniformLocations = this.getUniformLocations(gl, program) || { };\n    uniformLocations.uStepW = gl.getUniformLocation(program, 'uStepW');\n    uniformLocations.uStepH = gl.getUniformLocation(program, 'uStepH');\n    return {\n      program: program,\n      attributeLocations: attributeLocations,\n      uniformLocations: uniformLocations\n    };\n  },\n\n  /**\n   * Return a map of attribute names to WebGLAttributeLocation objects.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {WebGLShaderProgram} program The shader program from which to take attribute locations.\n   * @returns {Object} A map of attribute names to attribute locations.\n   */\n  getAttributeLocations: function(gl, program) {\n    return {\n      aPosition: gl.getAttribLocation(program, 'aPosition'),\n    };\n  },\n\n  /**\n   * Return a map of uniform names to WebGLUniformLocation objects.\n   *\n   * Intended to be overridden by subclasses.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {WebGLShaderProgram} program The shader program from which to take uniform locations.\n   * @returns {Object} A map of uniform names to uniform locations.\n   */\n  getUniformLocations: function (/* gl, program */) {\n    // in case i do not need any special uniform i need to return an empty object\n    return { };\n  },\n\n  /**\n   * Send attribute data from this filter to its shader program on the GPU.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {Object} attributeLocations A map of shader attribute names to their locations.\n   */\n  sendAttributeData: function(gl, attributeLocations, aPositionData) {\n    var attributeLocation = attributeLocations.aPosition;\n    var buffer = gl.createBuffer();\n    gl.bindBuffer(gl.ARRAY_BUFFER, buffer);\n    gl.enableVertexAttribArray(attributeLocation);\n    gl.vertexAttribPointer(attributeLocation, 2, gl.FLOAT, false, 0, 0);\n    gl.bufferData(gl.ARRAY_BUFFER, aPositionData, gl.STATIC_DRAW);\n  },\n\n  _setupFrameBuffer: function(options) {\n    var gl = options.context, width, height;\n    if (options.passes > 1) {\n      width = options.destinationWidth;\n      height = options.destinationHeight;\n      if (options.sourceWidth !== width || options.sourceHeight !== height) {\n        gl.deleteTexture(options.targetTexture);\n        options.targetTexture = options.filterBackend.createTexture(gl, width, height);\n      }\n      gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D,\n        options.targetTexture, 0);\n    }\n    else {\n      // draw last filter on canvas and not to framebuffer.\n      gl.bindFramebuffer(gl.FRAMEBUFFER, null);\n      gl.finish();\n    }\n  },\n\n  _swapTextures: function(options) {\n    options.passes--;\n    options.pass++;\n    var temp = options.targetTexture;\n    options.targetTexture = options.sourceTexture;\n    options.sourceTexture = temp;\n  },\n\n  /**\n   * Generic isNeutral implementation for one parameter based filters.\n   * Used only in image applyFilters to discard filters that will not have an effect\n   * on the image\n   * Other filters may need their own verison ( ColorMatrix, HueRotation, gamma, ComposedFilter )\n   * @param {Object} options\n   **/\n  isNeutralState: function(/* options */) {\n    var main = this.mainParameter,\n        _class = fabric.Image.filters[this.type].prototype;\n    if (main) {\n      if (Array.isArray(_class[main])) {\n        for (var i = _class[main].length; i--;) {\n          if (this[main][i] !== _class[main][i]) {\n            return false;\n          }\n        }\n        return true;\n      }\n      else {\n        return _class[main] === this[main];\n      }\n    }\n    else {\n      return false;\n    }\n  },\n\n  /**\n   * Apply this filter to the input image data provided.\n   *\n   * Determines whether to use WebGL or Canvas2D based on the options.webgl flag.\n   *\n   * @param {Object} options\n   * @param {Number} options.passes The number of filters remaining to be executed\n   * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n   * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n   * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n   * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n   * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n   */\n  applyTo: function(options) {\n    if (options.webgl) {\n      this._setupFrameBuffer(options);\n      this.applyToWebGL(options);\n      this._swapTextures(options);\n    }\n    else {\n      this.applyTo2d(options);\n    }\n  },\n\n  /**\n   * Retrieves the cached shader.\n   * @param {Object} options\n   * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n   * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n   */\n  retrieveShader: function(options) {\n    if (!options.programCache.hasOwnProperty(this.type)) {\n      options.programCache[this.type] = this.createProgram(options.context);\n    }\n    return options.programCache[this.type];\n  },\n\n  /**\n   * Apply this filter using webgl.\n   *\n   * @param {Object} options\n   * @param {Number} options.passes The number of filters remaining to be executed\n   * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n   * @param {WebGLTexture} options.originalTexture The texture of the original input image.\n   * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n   * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n   * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n   * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n   */\n  applyToWebGL: function(options) {\n    var gl = options.context;\n    var shader = this.retrieveShader(options);\n    if (options.pass === 0 && options.originalTexture) {\n      gl.bindTexture(gl.TEXTURE_2D, options.originalTexture);\n    }\n    else {\n      gl.bindTexture(gl.TEXTURE_2D, options.sourceTexture);\n    }\n    gl.useProgram(shader.program);\n    this.sendAttributeData(gl, shader.attributeLocations, options.aPosition);\n\n    gl.uniform1f(shader.uniformLocations.uStepW, 1 / options.sourceWidth);\n    gl.uniform1f(shader.uniformLocations.uStepH, 1 / options.sourceHeight);\n\n    this.sendUniformData(gl, shader.uniformLocations);\n    gl.viewport(0, 0, options.destinationWidth, options.destinationHeight);\n    gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);\n  },\n\n  bindAdditionalTexture: function(gl, texture, textureUnit) {\n    gl.activeTexture(textureUnit);\n    gl.bindTexture(gl.TEXTURE_2D, texture);\n    // reset active texture to 0 as usual\n    gl.activeTexture(gl.TEXTURE0);\n  },\n\n  unbindAdditionalTexture: function(gl, textureUnit) {\n    gl.activeTexture(textureUnit);\n    gl.bindTexture(gl.TEXTURE_2D, null);\n    gl.activeTexture(gl.TEXTURE0);\n  },\n\n  getMainParameter: function() {\n    return this[this.mainParameter];\n  },\n\n  setMainParameter: function(value) {\n    this[this.mainParameter] = value;\n  },\n\n  /**\n   * Send uniform data from this filter to its shader program on the GPU.\n   *\n   * Intended to be overridden by subclasses.\n   *\n   * @param {WebGLRenderingContext} gl The canvas context used to compile the shader program.\n   * @param {Object} uniformLocations A map of shader uniform names to their locations.\n   */\n  sendUniformData: function(/* gl, uniformLocations */) {\n    // Intentionally left blank.  Override me in subclasses.\n  },\n\n  /**\n   * If needed by a 2d filter, this functions can create an helper canvas to be used\n   * remember that options.targetCanvas is available for use till end of chain.\n   */\n  createHelpLayer: function(options) {\n    if (!options.helpLayer) {\n      var helpLayer = document.createElement('canvas');\n      helpLayer.width = options.sourceWidth;\n      helpLayer.height = options.sourceHeight;\n      options.helpLayer = helpLayer;\n    }\n  },\n\n  /**\n   * Returns object representation of an instance\n   * @return {Object} Object representation of an instance\n   */\n  toObject: function() {\n    var object = { type: this.type }, mainP = this.mainParameter;\n    if (mainP) {\n      object[mainP] = this[mainP];\n    }\n    return object;\n  },\n\n  /**\n   * Returns a JSON representation of an instance\n   * @return {Object} JSON\n   */\n  toJSON: function() {\n    // delegate, not alias\n    return this.toObject();\n  }\n});\n\nfabric.Image.filters.BaseFilter.fromObject = function(object, callback) {\n  var filter = new fabric.Image.filters[object.type](object);\n  callback && callback(filter);\n  return filter;\n};\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Color Matrix filter class\n   * @class fabric.Image.filters.ColorMatrix\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.ColorMatrix#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @see {@Link http://www.webwasp.co.uk/tutorials/219/Color_Matrix_Filter.php}\n   * @see {@Link http://phoboslab.org/log/2013/11/fast-image-filters-with-webgl}\n   * @example <caption>Kodachrome filter</caption>\n   * var filter = new fabric.Image.filters.ColorMatrix({\n   *  matrix: [\n       1.1285582396593525, -0.3967382283601348, -0.03992559172921793, 0, 63.72958762196502,\n       -0.16404339962244616, 1.0835251566291304, -0.05498805115633132, 0, 24.732407896706203,\n       -0.16786010706155763, -0.5603416277695248, 1.6014850761964943, 0, 35.62982807460946,\n       0, 0, 0, 1, 0\n      ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.ColorMatrix = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.ColorMatrix.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'ColorMatrix',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'uniform mat4 uColorMatrix;\\n' +\n      'uniform vec4 uConstants;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'color *= uColorMatrix;\\n' +\n        'color += uConstants;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Colormatrix for pixels.\n     * array of 20 floats. Numbers in positions 4, 9, 14, 19 loose meaning\n     * outside the -1, 1 range.\n     * 0.0039215686 is the part of 1 that get translated to 1 in 2d\n     * @param {Array} matrix array of 20 numbers.\n     * @default\n     */\n    matrix: [\n      1, 0, 0, 0, 0,\n      0, 1, 0, 0, 0,\n      0, 0, 1, 0, 0,\n      0, 0, 0, 1, 0\n    ],\n\n    mainParameter: 'matrix',\n\n    /**\n     * Lock the colormatrix on the color part, skipping alpha, manly for non webgl scenario\n     * to save some calculation\n     */\n    colorsOnly: true,\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      // create a new array instead mutating the prototype with push\n      this.matrix = this.matrix.slice(0);\n    },\n\n    /**\n     * Apply the ColorMatrix operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data,\n          iLen = data.length,\n          m = this.matrix,\n          r, g, b, a, i, colorsOnly = this.colorsOnly;\n\n      for (i = 0; i < iLen; i += 4) {\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n        if (colorsOnly) {\n          data[i] = r * m[0] + g * m[1] + b * m[2] + m[4] * 255;\n          data[i + 1] = r * m[5] + g * m[6] + b * m[7] + m[9] * 255;\n          data[i + 2] = r * m[10] + g * m[11] + b * m[12] + m[14] * 255;\n        }\n        else {\n          a = data[i + 3];\n          data[i] = r * m[0] + g * m[1] + b * m[2] + a * m[3] + m[4] * 255;\n          data[i + 1] = r * m[5] + g * m[6] + b * m[7] + a * m[8] + m[9] * 255;\n          data[i + 2] = r * m[10] + g * m[11] + b * m[12] + a * m[13] + m[14] * 255;\n          data[i + 3] = r * m[15] + g * m[16] + b * m[17] + a * m[18] + m[19] * 255;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uColorMatrix: gl.getUniformLocation(program, 'uColorMatrix'),\n        uConstants: gl.getUniformLocation(program, 'uConstants'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var m = this.matrix,\n          matrix = [\n            m[0], m[1], m[2], m[3],\n            m[5], m[6], m[7], m[8],\n            m[10], m[11], m[12], m[13],\n            m[15], m[16], m[17], m[18]\n          ],\n          constants = [m[4], m[9], m[14], m[19]];\n      gl.uniformMatrix4fv(uniformLocations.uColorMatrix, false, matrix);\n      gl.uniform4fv(uniformLocations.uConstants, constants);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] function to invoke after filter creation\n   * @return {fabric.Image.filters.ColorMatrix} Instance of fabric.Image.filters.ColorMatrix\n   */\n  fabric.Image.filters.ColorMatrix.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Brightness filter class\n   * @class fabric.Image.filters.Brightness\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Brightness#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Brightness({\n   *   brightness: 0.05\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Brightness = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Brightness.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Brightness',\n\n    /**\n     * Fragment source for the brightness program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uBrightness;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'color.rgb += uBrightness;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Brightness value, from -1 to 1.\n     * translated to -255 to 255 for 2d\n     * 0.0039215686 is the part of 1 that get translated to 1 in 2d\n     * @param {Number} brightness\n     * @default\n     */\n    brightness: 0,\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'brightness',\n\n    /**\n    * Apply the Brightness operation to a Uint8ClampedArray representing the pixels of an image.\n    *\n    * @param {Object} options\n    * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n    */\n    applyTo2d: function(options) {\n      if (this.brightness === 0) {\n        return;\n      }\n      var imageData = options.imageData,\n          data = imageData.data, i, len = data.length,\n          brightness = Math.round(this.brightness * 255);\n      for (i = 0; i < len; i += 4) {\n        data[i] = data[i] + brightness;\n        data[i + 1] = data[i + 1] + brightness;\n        data[i + 2] = data[i + 2] + brightness;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uBrightness: gl.getUniformLocation(program, 'uBrightness'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uBrightness, this.brightness);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Brightness} Instance of fabric.Image.filters.Brightness\n   */\n  fabric.Image.filters.Brightness.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Adapted from <a href=\"http://www.html5rocks.com/en/tutorials/canvas/imagefilters/\">html5rocks article</a>\n   * @class fabric.Image.filters.Convolute\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Convolute#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example <caption>Sharpen filter</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   matrix: [ 0, -1,  0,\n   *            -1,  5, -1,\n   *             0, -1,  0 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   * @example <caption>Blur filter</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   matrix: [ 1/9, 1/9, 1/9,\n   *             1/9, 1/9, 1/9,\n   *             1/9, 1/9, 1/9 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   * @example <caption>Emboss filter</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   matrix: [ 1,   1,  1,\n   *             1, 0.7, -1,\n   *            -1,  -1, -1 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   * @example <caption>Emboss filter with opaqueness</caption>\n   * var filter = new fabric.Image.filters.Convolute({\n   *   opaque: true,\n   *   matrix: [ 1,   1,  1,\n   *             1, 0.7, -1,\n   *            -1,  -1, -1 ]\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.Convolute = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Convolute.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Convolute',\n\n    /*\n     * Opaque value (true/false)\n     */\n    opaque: false,\n\n    /*\n     * matrix for the filter, max 9x9\n     */\n    matrix: [0, 0, 0, 0, 1, 0, 0, 0, 0],\n\n    /**\n     * Fragment source for the brightness program\n     */\n    fragmentSource: {\n      Convolute_3_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[9];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 3.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 3.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 1), uStepH * (h - 1));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 3.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_3_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[9];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 3.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 3.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 1.0), uStepH * (h - 1.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 3.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n      Convolute_5_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[25];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 5.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 5.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 5.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_5_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[25];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 5.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 5.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 2.0), uStepH * (h - 2.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 5.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n      Convolute_7_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[49];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 7.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 7.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 7.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_7_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[49];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 7.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 7.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 3.0), uStepH * (h - 3.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 7.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n      Convolute_9_1: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[81];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 0);\\n' +\n          'for (float h = 0.0; h < 9.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 9.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\\n' +\n              'color += texture2D(uTexture, vTexCoord + matrixPos) * uMatrix[int(h * 9.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      Convolute_9_0: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform float uMatrix[81];\\n' +\n        'uniform float uStepW;\\n' +\n        'uniform float uStepH;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = vec4(0, 0, 0, 1);\\n' +\n          'for (float h = 0.0; h < 9.0; h+=1.0) {\\n' +\n            'for (float w = 0.0; w < 9.0; w+=1.0) {\\n' +\n              'vec2 matrixPos = vec2(uStepW * (w - 4.0), uStepH * (h - 4.0));\\n' +\n              'color.rgb += texture2D(uTexture, vTexCoord + matrixPos).rgb * uMatrix[int(h * 9.0 + w)];\\n' +\n            '}\\n' +\n          '}\\n' +\n          'float alpha = texture2D(uTexture, vTexCoord).a;\\n' +\n          'gl_FragColor = color;\\n' +\n          'gl_FragColor.a = alpha;\\n' +\n        '}',\n    },\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.Convolute.prototype\n     * @param {Object} [options] Options object\n     * @param {Boolean} [options.opaque=false] Opaque value (true/false)\n     * @param {Array} [options.matrix] Filter matrix\n     */\n\n\n    /**\n    * Retrieves the cached shader.\n    * @param {Object} options\n    * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n    * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n    */\n    retrieveShader: function(options) {\n      var size = Math.sqrt(this.matrix.length);\n      var cacheKey = this.type + '_' + size + '_' + (this.opaque ? 1 : 0);\n      var shaderSource = this.fragmentSource[cacheKey];\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    /**\n     * Apply the Brightness operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data,\n          weights = this.matrix,\n          side = Math.round(Math.sqrt(weights.length)),\n          halfSide = Math.floor(side / 2),\n          sw = imageData.width,\n          sh = imageData.height,\n          output = options.ctx.createImageData(sw, sh),\n          dst = output.data,\n          // go through the destination image pixels\n          alphaFac = this.opaque ? 1 : 0,\n          r, g, b, a, dstOff,\n          scx, scy, srcOff, wt,\n          x, y, cx, cy;\n\n      for (y = 0; y < sh; y++) {\n        for (x = 0; x < sw; x++) {\n          dstOff = (y * sw + x) * 4;\n          // calculate the weighed sum of the source image pixels that\n          // fall under the convolution matrix\n          r = 0; g = 0; b = 0; a = 0;\n\n          for (cy = 0; cy < side; cy++) {\n            for (cx = 0; cx < side; cx++) {\n              scy = y + cy - halfSide;\n              scx = x + cx - halfSide;\n\n              // eslint-disable-next-line max-depth\n              if (scy < 0 || scy >= sh || scx < 0 || scx >= sw) {\n                continue;\n              }\n\n              srcOff = (scy * sw + scx) * 4;\n              wt = weights[cy * side + cx];\n\n              r += data[srcOff] * wt;\n              g += data[srcOff + 1] * wt;\n              b += data[srcOff + 2] * wt;\n              // eslint-disable-next-line max-depth\n              if (!alphaFac) {\n                a += data[srcOff + 3] * wt;\n              }\n            }\n          }\n          dst[dstOff] = r;\n          dst[dstOff + 1] = g;\n          dst[dstOff + 2] = b;\n          if (!alphaFac) {\n            dst[dstOff + 3] = a;\n          }\n          else {\n            dst[dstOff + 3] = data[dstOff + 3];\n          }\n        }\n      }\n      options.imageData = output;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uMatrix: gl.getUniformLocation(program, 'uMatrix'),\n        uOpaque: gl.getUniformLocation(program, 'uOpaque'),\n        uHalfSize: gl.getUniformLocation(program, 'uHalfSize'),\n        uSize: gl.getUniformLocation(program, 'uSize'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1fv(uniformLocations.uMatrix, this.matrix);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return extend(this.callSuper('toObject'), {\n        opaque: this.opaque,\n        matrix: this.matrix\n      });\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Convolute} Instance of fabric.Image.filters.Convolute\n   */\n  fabric.Image.filters.Convolute.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Grayscale image filter class\n   * @class fabric.Image.filters.Grayscale\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Grayscale();\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Grayscale = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Grayscale.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Grayscale',\n\n    fragmentSource: {\n      average: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'float average = (color.r + color.b + color.g) / 3.0;\\n' +\n          'gl_FragColor = vec4(average, average, average, color.a);\\n' +\n        '}',\n      lightness: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform int uMode;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 col = texture2D(uTexture, vTexCoord);\\n' +\n          'float average = (max(max(col.r, col.g),col.b) + min(min(col.r, col.g),col.b)) / 2.0;\\n' +\n          'gl_FragColor = vec4(average, average, average, col.a);\\n' +\n        '}',\n      luminosity: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform int uMode;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 col = texture2D(uTexture, vTexCoord);\\n' +\n          'float average = 0.21 * col.r + 0.72 * col.g + 0.07 * col.b;\\n' +\n          'gl_FragColor = vec4(average, average, average, col.a);\\n' +\n        '}',\n    },\n\n\n    /**\n     * Grayscale mode, between 'average', 'lightness', 'luminosity'\n     * @param {String} type\n     * @default\n     */\n    mode: 'average',\n\n    mainParameter: 'mode',\n\n    /**\n     * Apply the Grayscale operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, i,\n          len = data.length, value,\n          mode = this.mode;\n      for (i = 0; i < len; i += 4) {\n        if (mode === 'average') {\n          value = (data[i] + data[i + 1] + data[i + 2]) / 3;\n        }\n        else if (mode === 'lightness') {\n          value = (Math.min(data[i], data[i + 1], data[i + 2]) +\n            Math.max(data[i], data[i + 1], data[i + 2])) / 2;\n        }\n        else if (mode === 'luminosity') {\n          value = 0.21 * data[i] + 0.72 * data[i + 1] + 0.07 * data[i + 2];\n        }\n        data[i] = value;\n        data[i + 1] = value;\n        data[i + 2] = value;\n      }\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var cacheKey = this.type + '_' + this.mode;\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        var shaderSource = this.fragmentSource[this.mode];\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uMode: gl.getUniformLocation(program, 'uMode'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      // default average mode.\n      var mode = 1;\n      gl.uniform1i(uniformLocations.uMode, mode);\n    },\n\n    /**\n     * Grayscale filter isNeutralState implementation\n     * The filter is never neutral\n     * on the image\n     **/\n    isNeutralState: function() {\n      return false;\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Grayscale} Instance of fabric.Image.filters.Grayscale\n   */\n  fabric.Image.filters.Grayscale.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Invert filter class\n   * @class fabric.Image.filters.Invert\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Invert();\n   * object.filters.push(filter);\n   * object.applyFilters(canvas.renderAll.bind(canvas));\n   */\n  filters.Invert = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Invert.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Invert',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform int uInvert;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'if (uInvert == 1) {\\n' +\n          'gl_FragColor = vec4(1.0 - color.r,1.0 -color.g,1.0 -color.b,color.a);\\n' +\n        '} else {\\n' +\n          'gl_FragColor = color;\\n' +\n        '}\\n' +\n      '}',\n\n    /**\n     * Filter invert. if false, does nothing\n     * @param {Boolean} invert\n     * @default\n     */\n    invert: true,\n\n    mainParameter: 'invert',\n\n    /**\n     * Apply the Invert operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, i,\n          len = data.length;\n      for (i = 0; i < len; i += 4) {\n        data[i] = 255 - data[i];\n        data[i + 1] = 255 - data[i + 1];\n        data[i + 2] = 255 - data[i + 2];\n      }\n    },\n\n    /**\n     * Invert filter isNeutralState implementation\n     * Used only in image applyFilters to discard filters that will not have an effect\n     * on the image\n     * @param {Object} options\n     **/\n    isNeutralState: function() {\n      return !this.invert;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uInvert: gl.getUniformLocation(program, 'uInvert'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1i(uniformLocations.uInvert, this.invert);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Invert} Instance of fabric.Image.filters.Invert\n   */\n  fabric.Image.filters.Invert.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Noise filter class\n   * @class fabric.Image.filters.Noise\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Noise#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Noise({\n   *   noise: 700\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.Noise = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Noise.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Noise',\n\n    /**\n     * Fragment source for the noise program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uStepH;\\n' +\n      'uniform float uNoise;\\n' +\n      'uniform float uSeed;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'float rand(vec2 co, float seed, float vScale) {\\n' +\n        'return fract(sin(dot(co.xy * vScale ,vec2(12.9898 , 78.233))) * 43758.5453 * (seed + 0.01) / 2.0);\\n' +\n      '}\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'color.rgb += (0.5 - rand(vTexCoord, uSeed, 0.1 / uStepH)) * uNoise;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'noise',\n\n    /**\n     * Noise value, from\n     * @param {Number} noise\n     * @default\n     */\n    noise: 0,\n\n    /**\n     * Apply the Brightness operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      if (this.noise === 0) {\n        return;\n      }\n      var imageData = options.imageData,\n          data = imageData.data, i, len = data.length,\n          noise = this.noise, rand;\n\n      for (i = 0, len = data.length; i < len; i += 4) {\n\n        rand = (0.5 - Math.random()) * noise;\n\n        data[i] += rand;\n        data[i + 1] += rand;\n        data[i + 2] += rand;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uNoise: gl.getUniformLocation(program, 'uNoise'),\n        uSeed: gl.getUniformLocation(program, 'uSeed'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uNoise, this.noise / 255);\n      gl.uniform1f(uniformLocations.uSeed, Math.random());\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return extend(this.callSuper('toObject'), {\n        noise: this.noise\n      });\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Noise} Instance of fabric.Image.filters.Noise\n   */\n  fabric.Image.filters.Noise.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Pixelate filter class\n   * @class fabric.Image.filters.Pixelate\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Pixelate#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Pixelate({\n   *   blocksize: 8\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Pixelate = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Pixelate.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Pixelate',\n\n    blocksize: 4,\n\n    mainParameter: 'blocksize',\n\n    /**\n     * Fragment source for the Pixelate program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uBlocksize;\\n' +\n      'uniform float uStepW;\\n' +\n      'uniform float uStepH;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'float blockW = uBlocksize * uStepW;\\n' +\n        'float blockH = uBlocksize * uStepW;\\n' +\n        'int posX = int(vTexCoord.x / blockW);\\n' +\n        'int posY = int(vTexCoord.y / blockH);\\n' +\n        'float fposX = float(posX);\\n' +\n        'float fposY = float(posY);\\n' +\n        'vec2 squareCoords = vec2(fposX * blockW, fposY * blockH);\\n' +\n        'vec4 color = texture2D(uTexture, squareCoords);\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    /**\n     * Apply the Pixelate operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data,\n          iLen = imageData.height,\n          jLen = imageData.width,\n          index, i, j, r, g, b, a,\n          _i, _j, _iLen, _jLen;\n\n      for (i = 0; i < iLen; i += this.blocksize) {\n        for (j = 0; j < jLen; j += this.blocksize) {\n\n          index = (i * 4) * jLen + (j * 4);\n\n          r = data[index];\n          g = data[index + 1];\n          b = data[index + 2];\n          a = data[index + 3];\n\n          _iLen = Math.min(i + this.blocksize, iLen);\n          _jLen = Math.min(j + this.blocksize, jLen);\n          for (_i = i; _i < _iLen; _i++) {\n            for (_j = j; _j < _jLen; _j++) {\n              index = (_i * 4) * jLen + (_j * 4);\n              data[index] = r;\n              data[index + 1] = g;\n              data[index + 2] = b;\n              data[index + 3] = a;\n            }\n          }\n        }\n      }\n    },\n\n    /**\n     * Indicate when the filter is not gonna apply changes to the image\n     **/\n    isNeutralState: function() {\n      return this.blocksize === 1;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uBlocksize: gl.getUniformLocation(program, 'uBlocksize'),\n        uStepW: gl.getUniformLocation(program, 'uStepW'),\n        uStepH: gl.getUniformLocation(program, 'uStepH'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uBlocksize, this.blocksize);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Pixelate} Instance of fabric.Image.filters.Pixelate\n   */\n  fabric.Image.filters.Pixelate.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      extend = fabric.util.object.extend,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Remove white filter class\n   * @class fabric.Image.filters.RemoveColor\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.RemoveColor#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.RemoveColor({\n   *   threshold: 0.2,\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.RemoveColor = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.RemoveColor.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'RemoveColor',\n\n    /**\n     * Color to remove, in any format understood by fabric.Color.\n     * @param {String} type\n     * @default\n     */\n    color: '#FFFFFF',\n\n    /**\n     * Fragment source for the brightness program\n     */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec4 uLow;\\n' +\n      'uniform vec4 uHigh;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'gl_FragColor = texture2D(uTexture, vTexCoord);\\n' +\n        'if(all(greaterThan(gl_FragColor.rgb,uLow.rgb)) && all(greaterThan(uHigh.rgb,gl_FragColor.rgb))) {\\n' +\n          'gl_FragColor.a = 0.0;\\n' +\n        '}\\n' +\n      '}',\n\n    /**\n     * distance to actual color, as value up or down from each r,g,b\n     * between 0 and 1\n     **/\n    distance: 0.02,\n\n    /**\n     * For color to remove inside distance, use alpha channel for a smoother deletion\n     * NOT IMPLEMENTED YET\n     **/\n    useAlpha: false,\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.RemoveWhite.prototype\n     * @param {Object} [options] Options object\n     * @param {Number} [options.color=#RRGGBB] Threshold value\n     * @param {Number} [options.distance=10] Distance value\n     */\n\n    /**\n     * Applies filter to canvas element\n     * @param {Object} canvasEl Canvas element to apply filter to\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, i,\n          distance = this.distance * 255,\n          r, g, b,\n          source = new fabric.Color(this.color).getSource(),\n          lowC = [\n            source[0] - distance,\n            source[1] - distance,\n            source[2] - distance,\n          ],\n          highC = [\n            source[0] + distance,\n            source[1] + distance,\n            source[2] + distance,\n          ];\n\n\n      for (i = 0; i < data.length; i += 4) {\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n\n        if (r > lowC[0] &&\n            g > lowC[1] &&\n            b > lowC[2] &&\n            r < highC[0] &&\n            g < highC[1] &&\n            b < highC[2]) {\n          data[i + 3] = 0;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uLow: gl.getUniformLocation(program, 'uLow'),\n        uHigh: gl.getUniformLocation(program, 'uHigh'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var source = new fabric.Color(this.color).getSource(),\n          distance = parseFloat(this.distance),\n          lowC = [\n            0 + source[0] / 255 - distance,\n            0 + source[1] / 255 - distance,\n            0 + source[2] / 255 - distance,\n            1\n          ],\n          highC = [\n            source[0] / 255 + distance,\n            source[1] / 255 + distance,\n            source[2] / 255 + distance,\n            1\n          ];\n      gl.uniform4fv(uniformLocations.uLow, lowC);\n      gl.uniform4fv(uniformLocations.uHigh, highC);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return extend(this.callSuper('toObject'), {\n        color: this.color,\n        distance: this.distance\n      });\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.RemoveColor} Instance of fabric.Image.filters.RemoveWhite\n   */\n  fabric.Image.filters.RemoveColor.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  var matrices = {\n    Brownie: [\n      0.59970,0.34553,-0.27082,0,0.186,\n      -0.03770,0.86095,0.15059,0,-0.1449,\n      0.24113,-0.07441,0.44972,0,-0.02965,\n      0,0,0,1,0\n    ],\n    Vintage: [\n      0.62793,0.32021,-0.03965,0,0.03784,\n      0.02578,0.64411,0.03259,0,0.02926,\n      0.04660,-0.08512,0.52416,0,0.02023,\n      0,0,0,1,0\n    ],\n    Kodachrome: [\n      1.12855,-0.39673,-0.03992,0,0.24991,\n      -0.16404,1.08352,-0.05498,0,0.09698,\n      -0.16786,-0.56034,1.60148,0,0.13972,\n      0,0,0,1,0\n    ],\n    Technicolor: [\n      1.91252,-0.85453,-0.09155,0,0.04624,\n      -0.30878,1.76589,-0.10601,0,-0.27589,\n      -0.23110,-0.75018,1.84759,0,0.12137,\n      0,0,0,1,0\n    ],\n    Polaroid: [\n      1.438,-0.062,-0.062,0,0,\n      -0.122,1.378,-0.122,0,0,\n      -0.016,-0.016,1.483,0,0,\n      0,0,0,1,0\n    ],\n    Sepia: [\n      0.393, 0.769, 0.189, 0, 0,\n      0.349, 0.686, 0.168, 0, 0,\n      0.272, 0.534, 0.131, 0, 0,\n      0, 0, 0, 1, 0\n    ],\n    BlackWhite: [\n      1.5, 1.5, 1.5, 0, -1,\n      1.5, 1.5, 1.5, 0, -1,\n      1.5, 1.5, 1.5, 0, -1,\n      0, 0, 0, 1, 0,\n    ]\n  };\n\n  for (var key in matrices) {\n    filters[key] = createClass(filters.ColorMatrix, /** @lends fabric.Image.filters.Sepia.prototype */ {\n\n      /**\n       * Filter type\n       * @param {String} type\n       * @default\n       */\n      type: key,\n\n      /**\n       * Colormatrix for the effect\n       * array of 20 floats. Numbers in positions 4, 9, 14, 19 loose meaning\n       * outside the -1, 1 range.\n       * @param {Array} matrix array of 20 numbers.\n       * @default\n       */\n      matrix: matrices[key],\n\n      /**\n       * Lock the matrix export for this kind of static, parameter less filters.\n       */\n      mainParameter: false,\n      /**\n       * Lock the colormatrix on the color part, skipping alpha\n       */\n      colorsOnly: true,\n\n    });\n    fabric.Image.filters[key].fromObject = fabric.Image.filters.BaseFilter.fromObject;\n  }\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n  'use strict';\n\n  var fabric = global.fabric,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Color Blend filter class\n   * @class fabric.Image.filter.BlendColor\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @example\n   * var filter = new fabric.Image.filters.BlendColor({\n   *  color: '#000',\n   *  mode: 'multiply'\n   * });\n   *\n   * var filter = new fabric.Image.filters.BlendImage({\n   *  image: fabricImageObject,\n   *  mode: 'multiply',\n   *  alpha: 0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n\n  filters.BlendColor = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Blend.prototype */ {\n    type: 'BlendColor',\n\n    /**\n     * Color to make the blend operation with. default to a reddish color since black or white\n     * gives always strong result.\n     **/\n    color: '#F95C63',\n\n    /**\n     * Blend mode for the filter: one of multiply, add, diff, screen, subtract,\n     * darken, lighten, overlay, exclusion, tint.\n     **/\n    mode: 'multiply',\n\n    /**\n     * alpha value. represent the strength of the blend color operation.\n     **/\n    alpha: 1,\n\n    /**\n     * Fragment source for the Multiply program\n     */\n    fragmentSource: {\n      multiply: 'gl_FragColor.rgb *= uColor.rgb;\\n',\n      screen: 'gl_FragColor.rgb = 1.0 - (1.0 - gl_FragColor.rgb) * (1.0 - uColor.rgb);\\n',\n      add: 'gl_FragColor.rgb += uColor.rgb;\\n',\n      diff: 'gl_FragColor.rgb = abs(gl_FragColor.rgb - uColor.rgb);\\n',\n      subtract: 'gl_FragColor.rgb -= uColor.rgb;\\n',\n      lighten: 'gl_FragColor.rgb = max(gl_FragColor.rgb, uColor.rgb);\\n',\n      darken: 'gl_FragColor.rgb = min(gl_FragColor.rgb, uColor.rgb);\\n',\n      exclusion: 'gl_FragColor.rgb += uColor.rgb - 2.0 * (uColor.rgb * gl_FragColor.rgb);\\n',\n      overlay: 'if (uColor.r < 0.5) {\\n' +\n          'gl_FragColor.r *= 2.0 * uColor.r;\\n' +\n        '} else {\\n' +\n          'gl_FragColor.r = 1.0 - 2.0 * (1.0 - gl_FragColor.r) * (1.0 - uColor.r);\\n' +\n        '}\\n' +\n        'if (uColor.g < 0.5) {\\n' +\n          'gl_FragColor.g *= 2.0 * uColor.g;\\n' +\n        '} else {\\n' +\n          'gl_FragColor.g = 1.0 - 2.0 * (1.0 - gl_FragColor.g) * (1.0 - uColor.g);\\n' +\n        '}\\n' +\n        'if (uColor.b < 0.5) {\\n' +\n          'gl_FragColor.b *= 2.0 * uColor.b;\\n' +\n        '} else {\\n' +\n          'gl_FragColor.b = 1.0 - 2.0 * (1.0 - gl_FragColor.b) * (1.0 - uColor.b);\\n' +\n        '}\\n',\n      tint: 'gl_FragColor.rgb *= (1.0 - uColor.a);\\n' +\n        'gl_FragColor.rgb += uColor.rgb;\\n',\n    },\n\n    /**\n     * build the fragment source for the filters, joining the common part with\n     * the specific one.\n     * @param {String} mode the mode of the filter, a key of this.fragmentSource\n     * @return {String} the source to be compiled\n     * @private\n     */\n    buildSource: function(mode) {\n      return 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform vec4 uColor;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'gl_FragColor = color;\\n' +\n          'if (color.a > 0.0) {\\n' +\n            this.fragmentSource[mode] +\n          '}\\n' +\n        '}';\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var cacheKey = this.type + '_' + this.mode, shaderSource;\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        shaderSource = this.buildSource(this.mode);\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    /**\n     * Apply the Blend operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          data = imageData.data, iLen = data.length,\n          tr, tg, tb,\n          r, g, b,\n          source, alpha1 = 1 - this.alpha;\n\n      source = new fabric.Color(this.color).getSource();\n      tr = source[0] * this.alpha;\n      tg = source[1] * this.alpha;\n      tb = source[2] * this.alpha;\n\n      for (var i = 0; i < iLen; i += 4) {\n\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n\n        switch (this.mode) {\n          case 'multiply':\n            data[i] = r * tr / 255;\n            data[i + 1] = g * tg / 255;\n            data[i + 2] = b * tb / 255;\n            break;\n          case 'screen':\n            data[i] = 255 - (255 - r) * (255 - tr) / 255;\n            data[i + 1] = 255 - (255 - g) * (255 - tg) / 255;\n            data[i + 2] = 255 - (255 - b) * (255 - tb) / 255;\n            break;\n          case 'add':\n            data[i] = r + tr;\n            data[i + 1] = g + tg;\n            data[i + 2] = b + tb;\n            break;\n          case 'diff':\n          case 'difference':\n            data[i] = Math.abs(r - tr);\n            data[i + 1] = Math.abs(g - tg);\n            data[i + 2] = Math.abs(b - tb);\n            break;\n          case 'subtract':\n            data[i] = r - tr;\n            data[i + 1] = g - tg;\n            data[i + 2] = b - tb;\n            break;\n          case 'darken':\n            data[i] = Math.min(r, tr);\n            data[i + 1] = Math.min(g, tg);\n            data[i + 2] = Math.min(b, tb);\n            break;\n          case 'lighten':\n            data[i] = Math.max(r, tr);\n            data[i + 1] = Math.max(g, tg);\n            data[i + 2] = Math.max(b, tb);\n            break;\n          case 'overlay':\n            data[i] = tr < 128 ? (2 * r * tr / 255) : (255 - 2 * (255 - r) * (255 - tr) / 255);\n            data[i + 1] = tg < 128 ? (2 * g * tg / 255) : (255 - 2 * (255 - g) * (255 - tg) / 255);\n            data[i + 2] = tb < 128 ? (2 * b * tb / 255) : (255 - 2 * (255 - b) * (255 - tb) / 255);\n            break;\n          case 'exclusion':\n            data[i] = tr + r - ((2 * tr * r) / 255);\n            data[i + 1] = tg + g - ((2 * tg * g) / 255);\n            data[i + 2] = tb + b - ((2 * tb * b) / 255);\n            break;\n          case 'tint':\n            data[i] = tr + r * alpha1;\n            data[i + 1] = tg + g * alpha1;\n            data[i + 2] = tb + b * alpha1;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uColor: gl.getUniformLocation(program, 'uColor'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var source = new fabric.Color(this.color).getSource();\n      source[0] = this.alpha * source[0] / 255;\n      source[1] = this.alpha * source[1] / 255;\n      source[2] = this.alpha * source[2] / 255;\n      source[3] = this.alpha;\n      gl.uniform4fv(uniformLocations.uColor, source);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return {\n        type: this.type,\n        color: this.color,\n        mode: this.mode,\n        alpha: this.alpha\n      };\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.BlendColor} Instance of fabric.Image.filters.BlendColor\n   */\n  fabric.Image.filters.BlendColor.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n  'use strict';\n\n  var fabric = global.fabric,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Image Blend filter class\n   * @class fabric.Image.filter.BlendImage\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @example\n   * var filter = new fabric.Image.filters.BlendColor({\n   *  color: '#000',\n   *  mode: 'multiply'\n   * });\n   *\n   * var filter = new fabric.Image.filters.BlendImage({\n   *  image: fabricImageObject,\n   *  mode: 'multiply',\n   *  alpha: 0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n\n  filters.BlendImage = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.BlendImage.prototype */ {\n    type: 'BlendImage',\n\n    /**\n     * Color to make the blend operation with. default to a reddish color since black or white\n     * gives always strong result.\n     **/\n    image: null,\n\n    /**\n     * Blend mode for the filter: one of multiply, add, diff, screen, subtract,\n     * darken, lighten, overlay, exclusion, tint.\n     **/\n    mode: 'multiply',\n\n    /**\n     * alpha value. represent the strength of the blend image operation.\n     * not implemented.\n     **/\n    alpha: 1,\n\n    vertexSource: 'attribute vec2 aPosition;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'varying vec2 vTexCoord2;\\n' +\n      'uniform mat3 uTransformMatrix;\\n' +\n      'void main() {\\n' +\n        'vTexCoord = aPosition;\\n' +\n        'vTexCoord2 = (uTransformMatrix * vec3(aPosition, 1.0)).xy;\\n' +\n        'gl_Position = vec4(aPosition * 2.0 - 1.0, 0.0, 1.0);\\n' +\n      '}',\n\n    /**\n     * Fragment source for the Multiply program\n     */\n    fragmentSource: {\n      multiply: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform sampler2D uImage;\\n' +\n        'uniform vec4 uColor;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'varying vec2 vTexCoord2;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'vec4 color2 = texture2D(uImage, vTexCoord2);\\n' +\n          'color.rgba *= color2.rgba;\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n      mask: 'precision highp float;\\n' +\n        'uniform sampler2D uTexture;\\n' +\n        'uniform sampler2D uImage;\\n' +\n        'uniform vec4 uColor;\\n' +\n        'varying vec2 vTexCoord;\\n' +\n        'varying vec2 vTexCoord2;\\n' +\n        'void main() {\\n' +\n          'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n          'vec4 color2 = texture2D(uImage, vTexCoord2);\\n' +\n          'color.a = color2.a;\\n' +\n          'gl_FragColor = color;\\n' +\n        '}',\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var cacheKey = this.type + '_' + this.mode;\n      var shaderSource = this.fragmentSource[this.mode];\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        options.programCache[cacheKey] = this.createProgram(options.context, shaderSource);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    applyToWebGL: function(options) {\n      // load texture to blend.\n      var gl = options.context,\n          texture = this.createTexture(options.filterBackend, this.image);\n      this.bindAdditionalTexture(gl, texture, gl.TEXTURE1);\n      this.callSuper('applyToWebGL', options);\n      this.unbindAdditionalTexture(gl, gl.TEXTURE1);\n    },\n\n    createTexture: function(backend, image) {\n      return backend.getCachedTexture(image.cacheKey, image._element);\n    },\n\n    /**\n     * Calculate a transformMatrix to adapt the image to blend over\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    calculateMatrix: function() {\n      var image = this.image,\n          width = image._element.width,\n          height = image._element.height;\n      return [\n        1 / image.scaleX, 0, 0,\n        0, 1 / image.scaleY, 0,\n        -image.left / width, -image.top / height, 1\n      ];\n    },\n\n    /**\n     * Apply the Blend operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          resources = options.filterBackend.resources,\n          data = imageData.data, iLen = data.length,\n          width = imageData.width,\n          height = imageData.height,\n          tr, tg, tb, ta,\n          r, g, b, a,\n          canvas1, context, image = this.image, blendData;\n\n      if (!resources.blendImage) {\n        resources.blendImage = fabric.util.createCanvasElement();\n      }\n      canvas1 = resources.blendImage;\n      context = canvas1.getContext('2d');\n      if (canvas1.width !== width || canvas1.height !== height) {\n        canvas1.width = width;\n        canvas1.height = height;\n      }\n      else {\n        context.clearRect(0, 0, width, height);\n      }\n      context.setTransform(image.scaleX, 0, 0, image.scaleY, image.left, image.top);\n      context.drawImage(image._element, 0, 0, width, height);\n      blendData = context.getImageData(0, 0, width, height).data;\n      for (var i = 0; i < iLen; i += 4) {\n\n        r = data[i];\n        g = data[i + 1];\n        b = data[i + 2];\n        a = data[i + 3];\n\n        tr = blendData[i];\n        tg = blendData[i + 1];\n        tb = blendData[i + 2];\n        ta = blendData[i + 3];\n\n        switch (this.mode) {\n          case 'multiply':\n            data[i] = r * tr / 255;\n            data[i + 1] = g * tg / 255;\n            data[i + 2] = b * tb / 255;\n            data[i + 3] = a * ta / 255;\n            break;\n          case 'mask':\n            data[i + 3] = ta;\n            break;\n        }\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uTransformMatrix: gl.getUniformLocation(program, 'uTransformMatrix'),\n        uImage: gl.getUniformLocation(program, 'uImage'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var matrix = this.calculateMatrix();\n      gl.uniform1i(uniformLocations.uImage, 1); // texture unit 1.\n      gl.uniformMatrix3fv(uniformLocations.uTransformMatrix, false, matrix);\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return {\n        type: this.type,\n        image: this.image && this.image.toObject(),\n        mode: this.mode,\n        alpha: this.alpha\n      };\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} callback to be invoked after filter creation\n   * @return {fabric.Image.filters.BlendImage} Instance of fabric.Image.filters.BlendImage\n   */\n  fabric.Image.filters.BlendImage.fromObject = function(object, callback) {\n    fabric.Image.fromObject(object.image, function(image) {\n      var options = fabric.util.object.clone(object);\n      options.image = image;\n      callback(new fabric.Image.filters.BlendImage(options));\n    });\n  };\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }), pow = Math.pow, floor = Math.floor,\n      sqrt = Math.sqrt, abs = Math.abs, round = Math.round, sin = Math.sin,\n      ceil = Math.ceil,\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Resize image filter class\n   * @class fabric.Image.filters.Resize\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Resize();\n   * object.filters.push(filter);\n   * object.applyFilters(canvas.renderAll.bind(canvas));\n   */\n  filters.Resize = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Resize.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Resize',\n\n    /**\n     * Resize type\n     * for webgl resizeType is just lanczos, for canvas2d can be:\n     * bilinear, hermite, sliceHack, lanczos.\n     * @param {String} resizeType\n     * @default\n     */\n    resizeType: 'hermite',\n\n    /**\n     * Scale factor for resizing, x axis\n     * @param {Number} scaleX\n     * @default\n     */\n    scaleX: 1,\n\n    /**\n     * Scale factor for resizing, y axis\n     * @param {Number} scaleY\n     * @default\n     */\n    scaleY: 1,\n\n    /**\n     * LanczosLobes parameter for lanczos filter, valid for resizeType lanczos\n     * @param {Number} lanczosLobes\n     * @default\n     */\n    lanczosLobes: 3,\n\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uDelta: gl.getUniformLocation(program, 'uDelta'),\n        uTaps: gl.getUniformLocation(program, 'uTaps'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform2fv(uniformLocations.uDelta, this.horizontal ? [1 / this.width, 0] : [0, 1 / this.height]);\n      gl.uniform1fv(uniformLocations.uTaps, this.taps);\n    },\n\n    /**\n     * Retrieves the cached shader.\n     * @param {Object} options\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    retrieveShader: function(options) {\n      var filterWindow = this.getFilterWindow(), cacheKey = this.type + '_' + filterWindow;\n      if (!options.programCache.hasOwnProperty(cacheKey)) {\n        var fragmentShader = this.generateShader(filterWindow);\n        options.programCache[cacheKey] = this.createProgram(options.context, fragmentShader);\n      }\n      return options.programCache[cacheKey];\n    },\n\n    getFilterWindow: function() {\n      var scale = this.tempScale;\n      return Math.ceil(this.lanczosLobes / scale);\n    },\n\n    getTaps: function() {\n      var lobeFunction = this.lanczosCreate(this.lanczosLobes), scale = this.tempScale,\n          filterWindow = this.getFilterWindow(), taps = new Array(filterWindow);\n      for (var i = 1; i <= filterWindow; i++) {\n        taps[i - 1] = lobeFunction(i * scale);\n      }\n      return taps;\n    },\n\n    /**\n     * Generate vertex and shader sources from the necessary steps numbers\n     * @param {Number} filterWindow\n     */\n    generateShader: function(filterWindow) {\n      var offsets = new Array(filterWindow),\n          fragmentShader = this.fragmentSourceTOP, filterWindow;\n\n      for (var i = 1; i <= filterWindow; i++) {\n        offsets[i - 1] = i + '.0 * uDelta';\n      }\n\n      fragmentShader += 'uniform float uTaps[' + filterWindow + '];\\n';\n      fragmentShader += 'void main() {\\n';\n      fragmentShader += '  vec4 color = texture2D(uTexture, vTexCoord);\\n';\n      fragmentShader += '  float sum = 1.0;\\n';\n\n      offsets.forEach(function(offset, i) {\n        fragmentShader += '  color += texture2D(uTexture, vTexCoord + ' + offset + ') * uTaps[' + i + '];\\n';\n        fragmentShader += '  color += texture2D(uTexture, vTexCoord - ' + offset + ') * uTaps[' + i + '];\\n';\n        fragmentShader += '  sum += 2.0 * uTaps[' + i + '];\\n';\n      });\n      fragmentShader += '  gl_FragColor = color / sum;\\n';\n      fragmentShader += '}';\n      return fragmentShader;\n    },\n\n    fragmentSourceTOP: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec2 uDelta;\\n' +\n      'varying vec2 vTexCoord;\\n',\n\n    /**\n     * Apply the resize filter to the image\n     * Determines whether to use WebGL or Canvas2D based on the options.webgl flag.\n     *\n     * @param {Object} options\n     * @param {Number} options.passes The number of filters remaining to be executed\n     * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n     * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n     * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    applyTo: function(options) {\n      if (options.webgl) {\n        options.passes++;\n        this.width = options.sourceWidth;\n        this.horizontal = true;\n        this.dW = Math.round(this.width * this.scaleX);\n        this.dH = options.sourceHeight;\n        this.tempScale = this.dW / this.width;\n        this.taps = this.getTaps();\n        options.destinationWidth = this.dW;\n        this._setupFrameBuffer(options);\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n        options.sourceWidth = options.destinationWidth;\n\n        this.height = options.sourceHeight;\n        this.horizontal = false;\n        this.dH = Math.round(this.height * this.scaleY);\n        this.tempScale = this.dH / this.height;\n        this.taps = this.getTaps();\n        options.destinationHeight = this.dH;\n        this._setupFrameBuffer(options);\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n        options.sourceHeight = options.destinationHeight;\n      }\n      else {\n        this.applyTo2d(options);\n      }\n    },\n\n    isNeutralState: function() {\n      return this.scaleX === 1 && this.scaleY === 1;\n    },\n\n    lanczosCreate: function(lobes) {\n      return function(x) {\n        if (x >= lobes || x <= -lobes) {\n          return 0.0;\n        }\n        if (x < 1.19209290E-07 && x > -1.19209290E-07) {\n          return 1.0;\n        }\n        x *= Math.PI;\n        var xx = x / lobes;\n        return (sin(x) / x) * sin(xx) / xx;\n      };\n    },\n\n    /**\n     * Applies filter to canvas element\n     * @memberOf fabric.Image.filters.Resize.prototype\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} scaleX\n     * @param {Number} scaleY\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData,\n          scaleX = this.scaleX,\n          scaleY = this.scaleY;\n\n      this.rcpScaleX = 1 / scaleX;\n      this.rcpScaleY = 1 / scaleY;\n\n      var oW = imageData.width, oH = imageData.height,\n          dW = round(oW * scaleX), dH = round(oH * scaleY),\n          newData;\n\n      if (this.resizeType === 'sliceHack') {\n        newData = this.sliceByTwo(options, oW, oH, dW, dH);\n      }\n      else if (this.resizeType === 'hermite') {\n        newData = this.hermiteFastResize(options, oW, oH, dW, dH);\n      }\n      else if (this.resizeType === 'bilinear') {\n        newData = this.bilinearFiltering(options, oW, oH, dW, dH);\n      }\n      else if (this.resizeType === 'lanczos') {\n        newData = this.lanczosResize(options, oW, oH, dW, dH);\n      }\n      options.imageData = newData;\n    },\n\n    /**\n     * Filter sliceByTwo\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    sliceByTwo: function(options, oW, oH, dW, dH) {\n      var imageData = options.imageData,\n          mult = 0.5, doneW = false, doneH = false, stepW = oW * mult,\n          stepH = oH * mult, resources = fabric.filterBackend.resources,\n          tmpCanvas, ctx, sX = 0, sY = 0, dX = oW, dY = 0;\n      if (!resources.sliceByTwo) {\n        resources.sliceByTwo = document.createElement('canvas');\n      }\n      tmpCanvas = resources.sliceByTwo;\n      if (tmpCanvas.width < oW * 1.5 || tmpCanvas.height < oH) {\n        tmpCanvas.width = oW * 1.5;\n        tmpCanvas.height = oH;\n      }\n      ctx = tmpCanvas.getContext('2d');\n      ctx.clearRect(0, 0, oW * 1.5, oH);\n      ctx.putImageData(imageData, 0, 0);\n\n      dW = floor(dW);\n      dH = floor(dH);\n\n      while (!doneW || !doneH) {\n        oW = stepW;\n        oH = stepH;\n        if (dW < floor(stepW * mult)) {\n          stepW = floor(stepW * mult);\n        }\n        else {\n          stepW = dW;\n          doneW = true;\n        }\n        if (dH < floor(stepH * mult)) {\n          stepH = floor(stepH * mult);\n        }\n        else {\n          stepH = dH;\n          doneH = true;\n        }\n        ctx.drawImage(tmpCanvas, sX, sY, oW, oH, dX, dY, stepW, stepH);\n        sX = dX;\n        sY = dY;\n        dY += stepH;\n      }\n      return ctx.getImageData(sX, sY, dW, dH);\n    },\n\n    /**\n     * Filter lanczosResize\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    lanczosResize: function(options, oW, oH, dW, dH) {\n\n      function process(u) {\n        var v, i, weight, idx, a, red, green,\n            blue, alpha, fX, fY;\n        center.x = (u + 0.5) * ratioX;\n        icenter.x = floor(center.x);\n        for (v = 0; v < dH; v++) {\n          center.y = (v + 0.5) * ratioY;\n          icenter.y = floor(center.y);\n          a = 0; red = 0; green = 0; blue = 0; alpha = 0;\n          for (i = icenter.x - range2X; i <= icenter.x + range2X; i++) {\n            if (i < 0 || i >= oW) {\n              continue;\n            }\n            fX = floor(1000 * abs(i - center.x));\n            if (!cacheLanc[fX]) {\n              cacheLanc[fX] = { };\n            }\n            for (var j = icenter.y - range2Y; j <= icenter.y + range2Y; j++) {\n              if (j < 0 || j >= oH) {\n                continue;\n              }\n              fY = floor(1000 * abs(j - center.y));\n              if (!cacheLanc[fX][fY]) {\n                cacheLanc[fX][fY] = lanczos(sqrt(pow(fX * rcpRatioX, 2) + pow(fY * rcpRatioY, 2)) / 1000);\n              }\n              weight = cacheLanc[fX][fY];\n              if (weight > 0) {\n                idx = (j * oW + i) * 4;\n                a += weight;\n                red += weight * srcData[idx];\n                green += weight * srcData[idx + 1];\n                blue += weight * srcData[idx + 2];\n                alpha += weight * srcData[idx + 3];\n              }\n            }\n          }\n          idx = (v * dW + u) * 4;\n          destData[idx] = red / a;\n          destData[idx + 1] = green / a;\n          destData[idx + 2] = blue / a;\n          destData[idx + 3] = alpha / a;\n        }\n\n        if (++u < dW) {\n          return process(u);\n        }\n        else {\n          return destImg;\n        }\n      }\n\n      var srcData = options.imageData.data,\n          destImg = options.ctx.createImageData(dW, dH),\n          destData = destImg.data,\n          lanczos = this.lanczosCreate(this.lanczosLobes),\n          ratioX = this.rcpScaleX, ratioY = this.rcpScaleY,\n          rcpRatioX = 2 / this.rcpScaleX, rcpRatioY = 2 / this.rcpScaleY,\n          range2X = ceil(ratioX * this.lanczosLobes / 2),\n          range2Y = ceil(ratioY * this.lanczosLobes / 2),\n          cacheLanc = { }, center = { }, icenter = { };\n\n      return process(0);\n    },\n\n    /**\n     * bilinearFiltering\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    bilinearFiltering: function(options, oW, oH, dW, dH) {\n      var a, b, c, d, x, y, i, j, xDiff, yDiff, chnl,\n          color, offset = 0, origPix, ratioX = this.rcpScaleX,\n          ratioY = this.rcpScaleY,\n          w4 = 4 * (oW - 1), img = options.imageData,\n          pixels = img.data, destImage = options.ctx.createImageData(dW, dH),\n          destPixels = destImage.data;\n      for (i = 0; i < dH; i++) {\n        for (j = 0; j < dW; j++) {\n          x = floor(ratioX * j);\n          y = floor(ratioY * i);\n          xDiff = ratioX * j - x;\n          yDiff = ratioY * i - y;\n          origPix = 4 * (y * oW + x);\n\n          for (chnl = 0; chnl < 4; chnl++) {\n            a = pixels[origPix + chnl];\n            b = pixels[origPix + 4 + chnl];\n            c = pixels[origPix + w4 + chnl];\n            d = pixels[origPix + w4 + 4 + chnl];\n            color = a * (1 - xDiff) * (1 - yDiff) + b * xDiff * (1 - yDiff) +\n                    c * yDiff * (1 - xDiff) + d * xDiff * yDiff;\n            destPixels[offset++] = color;\n          }\n        }\n      }\n      return destImage;\n    },\n\n    /**\n     * hermiteFastResize\n     * @param {Object} canvasEl Canvas element to apply filter to\n     * @param {Number} oW Original Width\n     * @param {Number} oH Original Height\n     * @param {Number} dW Destination Width\n     * @param {Number} dH Destination Height\n     * @returns {ImageData}\n     */\n    hermiteFastResize: function(options, oW, oH, dW, dH) {\n      var ratioW = this.rcpScaleX, ratioH = this.rcpScaleY,\n          ratioWHalf = ceil(ratioW / 2),\n          ratioHHalf = ceil(ratioH / 2),\n          img = options.imageData, data = img.data,\n          img2 = options.ctx.createImageData(dW, dH), data2 = img2.data;\n      for (var j = 0; j < dH; j++) {\n        for (var i = 0; i < dW; i++) {\n          var x2 = (i + j * dW) * 4, weight = 0, weights = 0, weightsAlpha = 0,\n              gxR = 0, gxG = 0, gxB = 0, gxA = 0, centerY = (j + 0.5) * ratioH;\n          for (var yy = floor(j * ratioH); yy < (j + 1) * ratioH; yy++) {\n            var dy = abs(centerY - (yy + 0.5)) / ratioHHalf,\n                centerX = (i + 0.5) * ratioW, w0 = dy * dy;\n            for (var xx = floor(i * ratioW); xx < (i + 1) * ratioW; xx++) {\n              var dx = abs(centerX - (xx + 0.5)) / ratioWHalf,\n                  w = sqrt(w0 + dx * dx);\n              /* eslint-disable max-depth */\n              if (w > 1 && w < -1) {\n                continue;\n              }\n              //hermite filter\n              weight = 2 * w * w * w - 3 * w * w + 1;\n              if (weight > 0) {\n                dx = 4 * (xx + yy * oW);\n                //alpha\n                gxA += weight * data[dx + 3];\n                weightsAlpha += weight;\n                //colors\n                if (data[dx + 3] < 255) {\n                  weight = weight * data[dx + 3] / 250;\n                }\n                gxR += weight * data[dx];\n                gxG += weight * data[dx + 1];\n                gxB += weight * data[dx + 2];\n                weights += weight;\n              }\n              /* eslint-enable max-depth */\n            }\n          }\n          data2[x2] = gxR / weights;\n          data2[x2 + 1] = gxG / weights;\n          data2[x2 + 2] = gxB / weights;\n          data2[x2 + 3] = gxA / weightsAlpha;\n        }\n      }\n      return img2;\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function() {\n      return {\n        type: this.type,\n        scaleX: this.scaleX,\n        scaleY: this.scaleY,\n        resizeType: this.resizeType,\n        lanczosLobes: this.lanczosLobes\n      };\n    }\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Resize} Instance of fabric.Image.filters.Resize\n   */\n  fabric.Image.filters.Resize.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Contrast filter class\n   * @class fabric.Image.filters.Contrast\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Contrast#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Contrast({\n   *   contrast: 40\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Contrast = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Contrast.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Contrast',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uContrast;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'float contrastF = 1.015 * (uContrast + 1.0) / (1.0 * (1.015 - uContrast));\\n' +\n        'color.rgb = contrastF * (color.rgb - 0.5) + 0.5;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    contrast: 0,\n\n    mainParameter: 'contrast',\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.Contrast.prototype\n     * @param {Object} [options] Options object\n     * @param {Number} [options.contrast=0] Value to contrast the image up (-1...1)\n     */\n\n    /**\n      * Apply the Contrast operation to a Uint8Array representing the pixels of an image.\n      *\n      * @param {Object} options\n      * @param {ImageData} options.imageData The Uint8Array to be filtered.\n      */\n    applyTo2d: function(options) {\n      if (this.contrast === 0) {\n        return;\n      }\n      var imageData = options.imageData, i, len,\n          data = imageData.data, len = data.length,\n          contrast = Math.floor(this.contrast * 255),\n          contrastF = 259 * (contrast + 255) / (255 * (259 - contrast));\n\n      for (i = 0; i < len; i += 4) {\n        data[i] = contrastF * (data[i] - 128) + 128;\n        data[i + 1] = contrastF * (data[i + 1] - 128) + 128;\n        data[i + 2] = contrastF * (data[i + 2] - 128) + 128;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uContrast: gl.getUniformLocation(program, 'uContrast'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uContrast, this.contrast);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Contrast} Instance of fabric.Image.filters.Contrast\n   */\n  fabric.Image.filters.Contrast.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Saturate filter class\n   * @class fabric.Image.filters.Saturation\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Saturation#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Saturation({\n   *   saturation: 100\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Saturation = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Saturation.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Saturation',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform float uSaturation;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'float rgMax = max(color.r, color.g);\\n' +\n        'float rgbMax = max(rgMax, color.b);\\n' +\n        'color.r += rgbMax != color.r ? (rgbMax - color.r) * uSaturation : 0.00;\\n' +\n        'color.g += rgbMax != color.g ? (rgbMax - color.g) * uSaturation : 0.00;\\n' +\n        'color.b += rgbMax != color.b ? (rgbMax - color.b) * uSaturation : 0.00;\\n' +\n        'gl_FragColor = color;\\n' +\n      '}',\n\n    saturation: 0,\n\n    mainParameter: 'saturation',\n\n    /**\n     * Constructor\n     * @memberOf fabric.Image.filters.Saturate.prototype\n     * @param {Object} [options] Options object\n     * @param {Number} [options.saturate=0] Value to saturate the image (-1...1)\n     */\n\n    /**\n     * Apply the Saturation operation to a Uint8ClampedArray representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8ClampedArray to be filtered.\n     */\n    applyTo2d: function(options) {\n      if (this.saturation === 0) {\n        return;\n      }\n      var imageData = options.imageData,\n          data = imageData.data, len = data.length,\n          adjust = -this.saturation, i, max;\n\n      for (i = 0; i < len; i += 4) {\n        max = Math.max(data[i], data[i + 1], data[i + 2]);\n        data[i] += max !== data[i] ? (max - data[i]) * adjust : 0;\n        data[i + 1] += max !== data[i + 1] ? (max - data[i + 1]) * adjust : 0;\n        data[i + 2] += max !== data[i + 2] ? (max - data[i + 2]) * adjust : 0;\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uSaturation: gl.getUniformLocation(program, 'uSaturation'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform1f(uniformLocations.uSaturation, -this.saturation);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Saturation} Instance of fabric.Image.filters.Saturate\n   */\n  fabric.Image.filters.Saturation.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Blur filter class\n   * @class fabric.Image.filters.Blur\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Blur#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Blur({\n   *   blur: 0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   * canvas.renderAll();\n   */\n  filters.Blur = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Blur.prototype */ {\n\n    type: 'Blur',\n\n    /*\n'gl_FragColor = vec4(0.0);',\n'gl_FragColor += texture2D(texture, vTexCoord + -7 * uDelta)*0.0044299121055113265;',\n'gl_FragColor += texture2D(texture, vTexCoord + -6 * uDelta)*0.00895781211794;',\n'gl_FragColor += texture2D(texture, vTexCoord + -5 * uDelta)*0.0215963866053;',\n'gl_FragColor += texture2D(texture, vTexCoord + -4 * uDelta)*0.0443683338718;',\n'gl_FragColor += texture2D(texture, vTexCoord + -3 * uDelta)*0.0776744219933;',\n'gl_FragColor += texture2D(texture, vTexCoord + -2 * uDelta)*0.115876621105;',\n'gl_FragColor += texture2D(texture, vTexCoord + -1 * uDelta)*0.147308056121;',\n'gl_FragColor += texture2D(texture, vTexCoord              )*0.159576912161;',\n'gl_FragColor += texture2D(texture, vTexCoord + 1 * uDelta)*0.147308056121;',\n'gl_FragColor += texture2D(texture, vTexCoord + 2 * uDelta)*0.115876621105;',\n'gl_FragColor += texture2D(texture, vTexCoord + 3 * uDelta)*0.0776744219933;',\n'gl_FragColor += texture2D(texture, vTexCoord + 4 * uDelta)*0.0443683338718;',\n'gl_FragColor += texture2D(texture, vTexCoord + 5 * uDelta)*0.0215963866053;',\n'gl_FragColor += texture2D(texture, vTexCoord + 6 * uDelta)*0.00895781211794;',\n'gl_FragColor += texture2D(texture, vTexCoord + 7 * uDelta)*0.0044299121055113265;',\n*/\n\n    /* eslint-disable max-len */\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec2 uDelta;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'const float nSamples = 15.0;\\n' +\n      'vec3 v3offset = vec3(12.9898, 78.233, 151.7182);\\n' +\n      'float random(vec3 scale) {\\n' +\n        /* use the fragment position for a different seed per-pixel */\n        'return fract(sin(dot(gl_FragCoord.xyz, scale)) * 43758.5453);\\n' +\n      '}\\n' +\n      'void main() {\\n' +\n        'vec4 color = vec4(0.0);\\n' +\n        'float total = 0.0;\\n' +\n        'float offset = random(v3offset);\\n' +\n        'for (float t = -nSamples; t <= nSamples; t++) {\\n' +\n          'float percent = (t + offset - 0.5) / nSamples;\\n' +\n          'float weight = 1.0 - abs(percent);\\n' +\n          'color += texture2D(uTexture, vTexCoord + uDelta * percent) * weight;\\n' +\n          'total += weight;\\n' +\n        '}\\n' +\n        'gl_FragColor = color / total;\\n' +\n      '}',\n    /* eslint-enable max-len */\n\n    /**\n     * blur value, in percentage of image dimensions.\n     * specific to keep the image blur constant at different resolutions\n     * range bewteen 0 and 1.\n     */\n    blur: 0,\n\n    mainParameter: 'blur',\n\n    applyTo: function(options) {\n      if (options.webgl) {\n        // this aspectRatio is used to give the same blur to vertical and horizontal\n        this.aspectRatio = options.sourceWidth / options.sourceHeight;\n        options.passes++;\n        this._setupFrameBuffer(options);\n        this.horizontal = true;\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n        this._setupFrameBuffer(options);\n        this.horizontal = false;\n        this.applyToWebGL(options);\n        this._swapTextures(options);\n      }\n      else {\n        this.applyTo2d(options);\n      }\n    },\n\n    applyTo2d: function(options) {\n      // paint canvasEl with current image data.\n      //options.ctx.putImageData(options.imageData, 0, 0);\n      options.imageData = this.simpleBlur(options);\n    },\n\n    simpleBlur: function(options) {\n      var resources = options.filterBackend.resources, canvas1, canvas2,\n          width = options.imageData.width,\n          height = options.imageData.height;\n\n      if (!resources.blurLayer1) {\n        resources.blurLayer1 = fabric.util.createCanvasElement();\n        resources.blurLayer2 = fabric.util.createCanvasElement();\n      }\n      canvas1 = resources.blurLayer1;\n      canvas2 = resources.blurLayer2;\n      if (canvas1.width !== width || canvas1.height !== height) {\n        canvas2.width = canvas1.width = width;\n        canvas2.height = canvas1.height = height;\n      }\n      var ctx1 = canvas1.getContext('2d'),\n          ctx2 = canvas2.getContext('2d'),\n          nSamples = 15,\n          random, percent, j, i,\n          blur = this.blur * 0.06 * 0.5;\n\n      // load first canvas\n      ctx1.putImageData(options.imageData, 0, 0);\n      ctx2.clearRect(0, 0, width, height);\n\n      for (i = -nSamples; i <= nSamples; i++) {\n        random = (Math.random() - 0.5) / 4;\n        percent = i / nSamples;\n        j = blur * percent * width + random;\n        ctx2.globalAlpha = 1 - Math.abs(percent);\n        ctx2.drawImage(canvas1, j, random);\n        ctx1.drawImage(canvas2, 0, 0);\n        ctx2.globalAlpha = 1;\n        ctx2.clearRect(0, 0, canvas2.width, canvas2.height);\n      }\n      for (i = -nSamples; i <= nSamples; i++) {\n        random = (Math.random() - 0.5) / 4;\n        percent = i / nSamples;\n        j = blur * percent * height + random;\n        ctx2.globalAlpha = 1 - Math.abs(percent);\n        ctx2.drawImage(canvas1, random, j);\n        ctx1.drawImage(canvas2, 0, 0);\n        ctx2.globalAlpha = 1;\n        ctx2.clearRect(0, 0, canvas2.width, canvas2.height);\n      }\n      options.ctx.drawImage(canvas1, 0, 0);\n      var newImageData = options.ctx.getImageData(0, 0, canvas1.width, canvas1.height);\n      ctx1.globalAlpha = 1;\n      ctx1.clearRect(0, 0, canvas1.width, canvas1.height);\n      return newImageData;\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        delta: gl.getUniformLocation(program, 'uDelta'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      var delta = this.chooseRightDelta();\n      gl.uniform2fv(uniformLocations.delta, delta);\n    },\n\n    /**\n     * choose right value of image percentage to blur with\n     * @returns {Array} a numeric array with delta values\n     */\n    chooseRightDelta: function() {\n      var blurScale = 1, delta = [0, 0], blur;\n      if (this.horizontal) {\n        if (this.aspectRatio > 1) {\n          // image is wide, i want to shrink radius horizontal\n          blurScale = 1 / this.aspectRatio;\n        }\n      }\n      else {\n        if (this.aspectRatio < 1) {\n          // image is tall, i want to shrink radius vertical\n          blurScale = this.aspectRatio;\n        }\n      }\n      blur = blurScale * this.blur * 0.12;\n      if (this.horizontal) {\n        delta[0] = blur;\n      }\n      else {\n        delta[1] = blur;\n      }\n      return delta;\n    },\n  });\n\n  /**\n   * Deserialize a JSON definition of a BlurFilter into a concrete instance.\n   */\n  filters.Blur.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * Gamma filter class\n   * @class fabric.Image.filters.Gamma\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.Gamma#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.Gamma({\n   *   brightness: 200\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.Gamma = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Gamma.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'Gamma',\n\n    fragmentSource: 'precision highp float;\\n' +\n      'uniform sampler2D uTexture;\\n' +\n      'uniform vec3 uGamma;\\n' +\n      'varying vec2 vTexCoord;\\n' +\n      'void main() {\\n' +\n        'vec4 color = texture2D(uTexture, vTexCoord);\\n' +\n        'vec3 correction = (1.0 / uGamma);\\n' +\n        'color.r = pow(color.r, correction.r);\\n' +\n        'color.g = pow(color.g, correction.g);\\n' +\n        'color.b = pow(color.b, correction.b);\\n' +\n        'gl_FragColor = color;\\n' +\n        'gl_FragColor.rgb *= color.a;\\n' +\n      '}',\n\n    /**\n     * Gamma array value, from 0.01 to 2.2.\n     * @param {Array} gamma\n     * @default\n     */\n    gamma: [1, 1, 1],\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'gamma',\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      this.gamma = [1, 1, 1];\n      filters.BaseFilter.prototype.initialize.call(this, options);\n    },\n\n    /**\n     * Apply the Gamma operation to a Uint8Array representing the pixels of an image.\n     *\n     * @param {Object} options\n     * @param {ImageData} options.imageData The Uint8Array to be filtered.\n     */\n    applyTo2d: function(options) {\n      var imageData = options.imageData, data = imageData.data,\n          gamma = this.gamma, len = data.length,\n          rInv = 1 / gamma[0], gInv = 1 / gamma[1],\n          bInv = 1 / gamma[2], i;\n\n      if (!this.rVals) {\n        // eslint-disable-next-line\n        this.rVals = new Uint8Array(256);\n        // eslint-disable-next-line\n        this.gVals = new Uint8Array(256);\n        // eslint-disable-next-line\n        this.bVals = new Uint8Array(256);\n      }\n\n      // This is an optimization - pre-compute a look-up table for each color channel\n      // instead of performing these pow calls for each pixel in the image.\n      for (i = 0, len = 256; i < len; i++) {\n        this.rVals[i] = Math.pow(i / 255, rInv) * 255;\n        this.gVals[i] = Math.pow(i / 255, gInv) * 255;\n        this.bVals[i] = Math.pow(i / 255, bInv) * 255;\n      }\n      for (i = 0, len = data.length; i < len; i += 4) {\n        data[i] = this.rVals[data[i]];\n        data[i + 1] = this.gVals[data[i + 1]];\n        data[i + 2] = this.bVals[data[i + 2]];\n      }\n    },\n\n    /**\n     * Return WebGL uniform locations for this filter's shader.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {WebGLShaderProgram} program This filter's compiled shader program.\n     */\n    getUniformLocations: function(gl, program) {\n      return {\n        uGamma: gl.getUniformLocation(program, 'uGamma'),\n      };\n    },\n\n    /**\n     * Send data from this filter to its shader program's uniforms.\n     *\n     * @param {WebGLRenderingContext} gl The GL canvas context used to compile this filter's shader.\n     * @param {Object} uniformLocations A map of string uniform names to WebGLUniformLocation objects\n     */\n    sendUniformData: function(gl, uniformLocations) {\n      gl.uniform3fv(uniformLocations.uGamma, this.gamma);\n    },\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.Gamma} Instance of fabric.Image.filters.Gamma\n   */\n  fabric.Image.filters.Gamma.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * A container class that knows how to apply a sequence of filters to an input image.\n   */\n  filters.Composed = createClass(filters.BaseFilter, /** @lends fabric.Image.filters.Composed.prototype */ {\n\n    type: 'Composed',\n\n    /**\n     * A non sparse array of filters to apply\n     */\n    subFilters: [],\n\n    /**\n     * Constructor\n     * @param {Object} [options] Options object\n     */\n    initialize: function(options) {\n      this.callSuper('initialize', options);\n      // create a new array instead mutating the prototype with push\n      this.subFilters = this.subFilters.slice(0);\n    },\n\n    /**\n     * Apply this container's filters to the input image provided.\n     *\n     * @param {Object} options\n     * @param {Number} options.passes The number of filters remaining to be applied.\n     */\n    applyTo: function(options) {\n      options.passes += this.subFilters.length - 1;\n      this.subFilters.forEach(function(filter) {\n        filter.applyTo(options);\n      });\n    },\n\n    /**\n     * Serialize this filter into JSON.\n     *\n     * @returns {Object} A JSON representation of this filter.\n     */\n    toObject: function() {\n      return fabric.util.object.extend(this.callSuper('toObject'), {\n        subFilters: this.subFilters.map(function(filter) { return filter.toObject(); }),\n      });\n    },\n\n    isNeutralState: function() {\n      return !this.subFilters.some(function(filter) { return !filter.isNeutralState(); });\n    }\n  });\n\n  /**\n   * Deserialize a JSON definition of a ComposedFilter into a concrete instance.\n   */\n  fabric.Image.filters.Composed.fromObject = function(object, callback) {\n    var filters = object.subFilters || [],\n        subFilters = filters.map(function(filter) {\n          return new fabric.Image.filters[filter.type](filter);\n        }),\n        instance = new fabric.Image.filters.Composed({ subFilters: subFilters });\n    callback && callback(instance);\n    return instance;\n  };\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric  = global.fabric || (global.fabric = { }),\n      filters = fabric.Image.filters,\n      createClass = fabric.util.createClass;\n\n  /**\n   * HueRotation filter class\n   * @class fabric.Image.filters.HueRotation\n   * @memberOf fabric.Image.filters\n   * @extends fabric.Image.filters.BaseFilter\n   * @see {@link fabric.Image.filters.HueRotation#initialize} for constructor definition\n   * @see {@link http://fabricjs.com/image-filters|ImageFilters demo}\n   * @example\n   * var filter = new fabric.Image.filters.HueRotation({\n   *   rotation: -0.5\n   * });\n   * object.filters.push(filter);\n   * object.applyFilters();\n   */\n  filters.HueRotation = createClass(filters.ColorMatrix, /** @lends fabric.Image.filters.HueRotation.prototype */ {\n\n    /**\n     * Filter type\n     * @param {String} type\n     * @default\n     */\n    type: 'HueRotation',\n\n    /**\n     * HueRotation value, from -1 to 1.\n     * the unit is radians\n     * @param {Number} myParameter\n     * @default\n     */\n    rotation: 0,\n\n    /**\n     * Describe the property that is the filter parameter\n     * @param {String} m\n     * @default\n     */\n    mainParameter: 'rotation',\n\n    calculateMatrix: function() {\n      var rad = this.rotation * Math.PI, cos = fabric.util.cos(rad), sin = fabric.util.sin(rad),\n          aThird = 1 / 3, aThirdSqtSin = Math.sqrt(aThird) * sin, OneMinusCos = 1 - cos;\n      this.matrix = [\n        1, 0, 0, 0, 0,\n        0, 1, 0, 0, 0,\n        0, 0, 1, 0, 0,\n        0, 0, 0, 1, 0\n      ];\n      this.matrix[0] = cos + OneMinusCos / 3;\n      this.matrix[1] = aThird * OneMinusCos - aThirdSqtSin;\n      this.matrix[2] = aThird * OneMinusCos + aThirdSqtSin;\n      this.matrix[5] = aThird * OneMinusCos + aThirdSqtSin;\n      this.matrix[6] = cos + aThird * OneMinusCos;\n      this.matrix[7] = aThird * OneMinusCos - aThirdSqtSin;\n      this.matrix[10] = aThird * OneMinusCos - aThirdSqtSin;\n      this.matrix[11] = aThird * OneMinusCos + aThirdSqtSin;\n      this.matrix[12] = cos + aThird * OneMinusCos;\n    },\n\n    /**\n     * HueRotation isNeutralState implementation\n     * Used only in image applyFilters to discard filters that will not have an effect\n     * on the image\n     * @param {Object} options\n     **/\n    isNeutralState: function(options) {\n      this.calculateMatrix();\n      return filters.BaseFilter.prototype.isNeutralState.call(this, options);\n    },\n\n    /**\n     * Apply this filter to the input image data provided.\n     *\n     * Determines whether to use WebGL or Canvas2D based on the options.webgl flag.\n     *\n     * @param {Object} options\n     * @param {Number} options.passes The number of filters remaining to be executed\n     * @param {Boolean} options.webgl Whether to use webgl to render the filter.\n     * @param {WebGLTexture} options.sourceTexture The texture setup as the source to be filtered.\n     * @param {WebGLTexture} options.targetTexture The texture where filtered output should be drawn.\n     * @param {WebGLRenderingContext} options.context The GL context used for rendering.\n     * @param {Object} options.programCache A map of compiled shader programs, keyed by filter type.\n     */\n    applyTo: function(options) {\n      this.calculateMatrix();\n      filters.BaseFilter.prototype.applyTo.call(this, options);\n    },\n\n  });\n\n  /**\n   * Returns filter instance from an object representation\n   * @static\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] to be invoked after filter creation\n   * @return {fabric.Image.filters.HueRotation} Instance of fabric.Image.filters.HueRotation\n   */\n  fabric.Image.filters.HueRotation.fromObject = fabric.Image.filters.BaseFilter.fromObject;\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = { }),\n      clone = fabric.util.object.clone;\n\n  if (fabric.Text) {\n    fabric.warn('fabric.Text is already defined');\n    return;\n  }\n\n  /**\n   * Text class\n   * @class fabric.Text\n   * @extends fabric.Object\n   * @return {fabric.Text} thisArg\n   * @tutorial {@link http://fabricjs.com/fabric-intro-part-2#text}\n   * @see {@link fabric.Text#initialize} for constructor definition\n   */\n  fabric.Text = fabric.util.createClass(fabric.Object, /** @lends fabric.Text.prototype */ {\n\n    /**\n     * Properties which when set cause object to change dimensions\n     * @type Array\n     * @private\n     */\n    _dimensionAffectingProps: [\n      'fontSize',\n      'fontWeight',\n      'fontFamily',\n      'fontStyle',\n      'lineHeight',\n      'text',\n      'charSpacing',\n      'textAlign',\n      'styles',\n    ],\n\n    /**\n     * @private\n     */\n    _reNewline: /\\r?\\n/,\n\n    /**\n     * Use this regular expression to filter for whitespaces that is not a new line.\n     * Mostly used when text is 'justify' aligned.\n     * @private\n     */\n    _reSpacesAndTabs: /[ \\t\\r]/g,\n\n    /**\n     * Use this regular expression to filter for whitespace that is not a new line.\n     * Mostly used when text is 'justify' aligned.\n     * @private\n     */\n    _reSpaceAndTab: /[ \\t\\r]/,\n\n    /**\n     * Use this regular expression to filter consecutive groups of non spaces.\n     * Mostly used when text is 'justify' aligned.\n     * @private\n     */\n    _reWords: /\\S+/g,\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type:                 'text',\n\n    /**\n     * Font size (in pixels)\n     * @type Number\n     * @default\n     */\n    fontSize:             40,\n\n    /**\n     * Font weight (e.g. bold, normal, 400, 600, 800)\n     * @type {(Number|String)}\n     * @default\n     */\n    fontWeight:           'normal',\n\n    /**\n     * Font family\n     * @type String\n     * @default\n     */\n    fontFamily:           'Times New Roman',\n\n    /**\n     * Text decoration underline.\n     * @type Boolean\n     * @default\n     */\n    underline:       false,\n\n    /**\n     * Text decoration overline.\n     * @type Boolean\n     * @default\n     */\n    overline:       false,\n\n    /**\n     * Text decoration linethrough.\n     * @type Boolean\n     * @default\n     */\n    linethrough:       false,\n\n    /**\n     * Text alignment. Possible values: \"left\", \"center\", \"right\", \"justify\",\n     * \"justify-left\", \"justify-center\" or \"justify-right\".\n     * @type String\n     * @default\n     */\n    textAlign:            'left',\n\n    /**\n     * Font style . Possible values: \"\", \"normal\", \"italic\" or \"oblique\".\n     * @type String\n     * @default\n     */\n    fontStyle:            'normal',\n\n    /**\n     * Line height\n     * @type Number\n     * @default\n     */\n    lineHeight:           1.16,\n\n    /**\n     * Superscript schema object (minimum overlap)\n     * @type {Object}\n     * @default\n     */\n    superscript: {\n      size:      0.60, // fontSize factor\n      baseline: -0.35  // baseline-shift factor (upwards)\n    },\n\n    /**\n     * Subscript schema object (minimum overlap)\n     * @type {Object}\n     * @default\n     */\n    subscript: {\n      size:      0.60, // fontSize factor\n      baseline:  0.11  // baseline-shift factor (downwards)\n    },\n\n    /**\n     * Background color of text lines\n     * @type String\n     * @default\n     */\n    textBackgroundColor:  '',\n\n    /**\n     * List of properties to consider when checking if\n     * state of an object is changed ({@link fabric.Object#hasStateChanged})\n     * as well as for history (undo/redo) purposes\n     * @type Array\n     */\n    stateProperties: fabric.Object.prototype.stateProperties.concat('fontFamily',\n      'fontWeight',\n      'fontSize',\n      'text',\n      'underline',\n      'overline',\n      'linethrough',\n      'textAlign',\n      'fontStyle',\n      'lineHeight',\n      'textBackgroundColor',\n      'charSpacing',\n      'styles'),\n\n    /**\n     * List of properties to consider when checking if cache needs refresh\n     * @type Array\n     */\n    cacheProperties: fabric.Object.prototype.cacheProperties.concat('fontFamily',\n      'fontWeight',\n      'fontSize',\n      'text',\n      'underline',\n      'overline',\n      'linethrough',\n      'textAlign',\n      'fontStyle',\n      'lineHeight',\n      'textBackgroundColor',\n      'charSpacing',\n      'styles'),\n\n    /**\n     * When defined, an object is rendered via stroke and this property specifies its color.\n     * <b>Backwards incompatibility note:</b> This property was named \"strokeStyle\" until v1.1.6\n     * @type String\n     * @default\n     */\n    stroke:               null,\n\n    /**\n     * Shadow object representing shadow of this shape.\n     * <b>Backwards incompatibility note:</b> This property was named \"textShadow\" (String) until v1.2.11\n     * @type fabric.Shadow\n     * @default\n     */\n    shadow:               null,\n\n    /**\n     * @private\n     */\n    _fontSizeFraction: 0.222,\n\n    /**\n     * @private\n     */\n    offsets: {\n      underline: 0.10,\n      linethrough: -0.315,\n      overline: -0.88\n    },\n\n    /**\n     * Text Line proportion to font Size (in pixels)\n     * @type Number\n     * @default\n     */\n    _fontSizeMult:             1.13,\n\n    /**\n     * additional space between characters\n     * expressed in thousands of em unit\n     * @type Number\n     * @default\n     */\n    charSpacing:             0,\n\n    /**\n     * Object containing character styles - top-level properties -> line numbers,\n     * 2nd-level properties - charater numbers\n     * @type Object\n     * @default\n     */\n    styles: null,\n\n    /**\n     * Reference to a context to measure text char or couple of chars\n     * the cacheContext of the canvas will be used or a freshly created one if the object is not on canvas\n     * once created it will be referenced on fabric._measuringContext to avoide creating a canvas for every\n     * text object created.\n     * @type {CanvasRenderingContext2D}\n     * @default\n     */\n    _measuringContext: null,\n\n    /**\n     * Baseline shift, stlyes only, keep at 0 for the main text object\n     * @type {Number}\n     * @default\n     */\n    deltaY: 0,\n\n    /**\n     * Array of properties that define a style unit (of 'styles').\n     * @type {Array}\n     * @default\n     */\n    _styleProperties: [\n      'stroke',\n      'strokeWidth',\n      'fill',\n      'fontFamily',\n      'fontSize',\n      'fontWeight',\n      'fontStyle',\n      'underline',\n      'overline',\n      'linethrough',\n      'deltaY',\n      'textBackgroundColor',\n    ],\n\n    /**\n     * contains characters bounding boxes\n     */\n    __charBounds: [],\n\n    /**\n     * use this size when measuring text. To avoid IE11 rounding errors\n     * @type {Number}\n     * @default\n     * @readonly\n     * @private\n     */\n    CACHE_FONT_SIZE: 400,\n\n    /**\n     * contains the min text width to avoid getting 0\n     * @type {Number}\n     * @default\n     */\n    MIN_TEXT_WIDTH: 2,\n\n    /**\n     * Constructor\n     * @param {String} text Text string\n     * @param {Object} [options] Options object\n     * @return {fabric.Text} thisArg\n     */\n    initialize: function(text, options) {\n      this.styles = options ? (options.styles || { }) : { };\n      this.text = text;\n      this.__skipDimension = true;\n      this.callSuper('initialize', options);\n      this.__skipDimension = false;\n      this.initDimensions();\n      this.setCoords();\n      this.setupState({ propertySet: '_dimensionAffectingProps' });\n    },\n\n    /**\n     * Return a contex for measurement of text string.\n     * if created it gets stored for reuse\n     * @param {String} text Text string\n     * @param {Object} [options] Options object\n     * @return {fabric.Text} thisArg\n     */\n    getMeasuringContext: function() {\n      // if we did not return we have to measure something.\n      if (!fabric._measuringContext) {\n        fabric._measuringContext = this.canvas && this.canvas.contextCache ||\n          fabric.util.createCanvasElement().getContext('2d');\n      }\n      return fabric._measuringContext;\n    },\n\n    /**\n     * @private\n     * Divides text into lines of text and lines of graphemes.\n     */\n    _splitText: function() {\n      var newLines = this._splitTextIntoLines(this.text);\n      this.textLines = newLines.lines;\n      this._textLines = newLines.graphemeLines;\n      this._unwrappedTextLines = newLines._unwrappedLines;\n      this._text = newLines.graphemeText;\n      return newLines;\n    },\n\n    /**\n     * Initialize or update text dimensions.\n     * Updates this.width and this.height with the proper values.\n     * Does not return dimensions.\n     */\n    initDimensions: function() {\n      if (this.__skipDimension) {\n        return;\n      }\n      this._splitText();\n      this._clearCache();\n      this.width = this.calcTextWidth() || this.cursorWidth || this.MIN_TEXT_WIDTH;\n      if (this.textAlign.indexOf('justify') !== -1) {\n        // once text is measured we need to make space fatter to make justified text.\n        this.enlargeSpaces();\n      }\n      this.height = this.calcTextHeight();\n      this.saveState({ propertySet: '_dimensionAffectingProps' });\n    },\n\n    /**\n     * Enlarge space boxes and shift the others\n     */\n    enlargeSpaces: function() {\n      var diffSpace, currentLineWidth, numberOfSpaces, accumulatedSpace, line, charBound, spaces;\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        if (this.textAlign !== 'justify' && (i === len - 1 || this.isEndOfWrapping(i))) {\n          continue;\n        }\n        accumulatedSpace = 0;\n        line = this._textLines[i];\n        currentLineWidth = this.getLineWidth(i);\n        if (currentLineWidth < this.width && (spaces = this.textLines[i].match(this._reSpacesAndTabs))) {\n          numberOfSpaces = spaces.length;\n          diffSpace = (this.width - currentLineWidth) / numberOfSpaces;\n          for (var j = 0, jlen = line.length; j <= jlen; j++) {\n            charBound = this.__charBounds[i][j];\n            if (this._reSpaceAndTab.test(line[j])) {\n              charBound.width += diffSpace;\n              charBound.kernedWidth += diffSpace;\n              charBound.left += accumulatedSpace;\n              accumulatedSpace += diffSpace;\n            }\n            else {\n              charBound.left += accumulatedSpace;\n            }\n          }\n        }\n      }\n    },\n\n    /**\n     * Detect if the text line is ended with an hard break\n     * text and itext do not have wrapping, return false\n     * @return {Boolean}\n     */\n    isEndOfWrapping: function(lineIndex) {\n      return lineIndex === this._textLines.length - 1;\n    },\n\n    /**\n     * Detect if a line has a linebreak and so we need to account for it when moving\n     * and counting style.\n     * It return always for text and Itext.\n     * @return Number\n     */\n    missingNewlineOffset: function() {\n      return 1;\n    },\n\n    /**\n     * Returns string representation of an instance\n     * @return {String} String representation of text object\n     */\n    toString: function() {\n      return '#<fabric.Text (' + this.complexity() +\n        '): { \"text\": \"' + this.text + '\", \"fontFamily\": \"' + this.fontFamily + '\" }>';\n    },\n\n    /**\n     * Return the dimension and the zoom level needed to create a cache canvas\n     * big enough to host the object to be cached.\n     * @private\n     * @param {Object} dim.x width of object to be cached\n     * @param {Object} dim.y height of object to be cached\n     * @return {Object}.width width of canvas\n     * @return {Object}.height height of canvas\n     * @return {Object}.zoomX zoomX zoom value to unscale the canvas before drawing cache\n     * @return {Object}.zoomY zoomY zoom value to unscale the canvas before drawing cache\n     */\n    _getCacheCanvasDimensions: function() {\n      var dims = this.callSuper('_getCacheCanvasDimensions');\n      var fontSize = this.fontSize;\n      dims.width += fontSize * dims.zoomX;\n      dims.height += fontSize * dims.zoomY;\n      return dims;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      this._setTextStyles(ctx);\n      this._renderTextLinesBackground(ctx);\n      this._renderTextDecoration(ctx, 'underline');\n      this._renderText(ctx);\n      this._renderTextDecoration(ctx, 'overline');\n      this._renderTextDecoration(ctx, 'linethrough');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderText: function(ctx) {\n      if (this.paintFirst === 'stroke') {\n        this._renderTextStroke(ctx);\n        this._renderTextFill(ctx);\n      }\n      else {\n        this._renderTextFill(ctx);\n        this._renderTextStroke(ctx);\n      }\n    },\n\n    /**\n     * Set the font parameter of the context with the object properties or with charStyle\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} [charStyle] object with font style properties\n     * @param {String} [charStyle.fontFamily] Font Family\n     * @param {Number} [charStyle.fontSize] Font size in pixels. ( without px suffix )\n     * @param {String} [charStyle.fontWeight] Font weight\n     * @param {String} [charStyle.fontStyle] Font style (italic|normal)\n     */\n    _setTextStyles: function(ctx, charStyle, forMeasuring) {\n      ctx.textBaseline = 'alphabetic';\n      ctx.font = this._getFontDeclaration(charStyle, forMeasuring);\n    },\n\n    /**\n     * calculate and return the text Width measuring each line.\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @return {Number} Maximum width of fabric.Text object\n     */\n    calcTextWidth: function() {\n      var maxWidth = this.getLineWidth(0);\n\n      for (var i = 1, len = this._textLines.length; i < len; i++) {\n        var currentLineWidth = this.getLineWidth(i);\n        if (currentLineWidth > maxWidth) {\n          maxWidth = currentLineWidth;\n        }\n      }\n      return maxWidth;\n    },\n\n    /**\n     * @private\n     * @param {String} method Method name (\"fillText\" or \"strokeText\")\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {String} line Text to render\n     * @param {Number} left Left position of text\n     * @param {Number} top Top position of text\n     * @param {Number} lineIndex Index of a line in a text\n     */\n    _renderTextLine: function(method, ctx, line, left, top, lineIndex) {\n      this._renderChars(method, ctx, line, left, top, lineIndex);\n    },\n\n    /**\n     * Renders the text background for lines, taking care of style\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextLinesBackground: function(ctx) {\n      if (!this.textBackgroundColor && !this.styleHas('textBackgroundColor')) {\n        return;\n      }\n      var lineTopOffset = 0, heightOfLine,\n          lineLeftOffset, originalFill = ctx.fillStyle,\n          line, lastColor,\n          leftOffset = this._getLeftOffset(),\n          topOffset = this._getTopOffset(),\n          boxStart = 0, boxWidth = 0, charBox, currentColor;\n\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        heightOfLine = this.getHeightOfLine(i);\n        if (!this.textBackgroundColor && !this.styleHas('textBackgroundColor', i)) {\n          lineTopOffset += heightOfLine;\n          continue;\n        }\n        line = this._textLines[i];\n        lineLeftOffset = this._getLineLeftOffset(i);\n        boxWidth = 0;\n        boxStart = 0;\n        lastColor = this.getValueOfPropertyAt(i, 0, 'textBackgroundColor');\n        for (var j = 0, jlen = line.length; j < jlen; j++) {\n          charBox = this.__charBounds[i][j];\n          currentColor = this.getValueOfPropertyAt(i, j, 'textBackgroundColor');\n          if (currentColor !== lastColor) {\n            ctx.fillStyle = lastColor;\n            lastColor && ctx.fillRect(\n              leftOffset + lineLeftOffset + boxStart,\n              topOffset + lineTopOffset,\n              boxWidth,\n              heightOfLine / this.lineHeight\n            );\n            boxStart = charBox.left;\n            boxWidth = charBox.width;\n            lastColor = currentColor;\n          }\n          else {\n            boxWidth += charBox.kernedWidth;\n          }\n        }\n        if (currentColor) {\n          ctx.fillStyle = currentColor;\n          ctx.fillRect(\n            leftOffset + lineLeftOffset + boxStart,\n            topOffset + lineTopOffset,\n            boxWidth,\n            heightOfLine / this.lineHeight\n          );\n        }\n        lineTopOffset += heightOfLine;\n      }\n      ctx.fillStyle = originalFill;\n      // if there is text background color no\n      // other shadows should be casted\n      this._removeShadow(ctx);\n    },\n\n    /**\n     * @private\n     * @param {Object} decl style declaration for cache\n     * @param {String} decl.fontFamily fontFamily\n     * @param {String} decl.fontStyle fontStyle\n     * @param {String} decl.fontWeight fontWeight\n     * @return {Object} reference to cache\n     */\n    getFontCache: function(decl) {\n      var fontFamily = decl.fontFamily.toLowerCase();\n      if (!fabric.charWidthsCache[fontFamily]) {\n        fabric.charWidthsCache[fontFamily] = { };\n      }\n      var cache = fabric.charWidthsCache[fontFamily],\n          cacheProp = decl.fontStyle.toLowerCase() + '_' + (decl.fontWeight + '').toLowerCase();\n      if (!cache[cacheProp]) {\n        cache[cacheProp] = { };\n      }\n      return cache[cacheProp];\n    },\n\n    /**\n     * apply all the character style to canvas for rendering\n     * @private\n     * @param {String} _char\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {Object} [decl]\n     */\n    _applyCharStyles: function(method, ctx, lineIndex, charIndex, styleDeclaration) {\n\n      this._setFillStyles(ctx, styleDeclaration);\n      this._setStrokeStyles(ctx, styleDeclaration);\n\n      ctx.font = this._getFontDeclaration(styleDeclaration);\n    },\n\n    /**\n     * measure and return the width of a single character.\n     * possibly overridden to accommodate different measure logic or\n     * to hook some external lib for character measurement\n     * @private\n     * @param {String} _char, char to be measured\n     * @param {Object} charStyle style of char to be measured\n     * @param {String} [previousChar] previous char\n     * @param {Object} [prevCharStyle] style of previous char\n     */\n    _measureChar: function(_char, charStyle, previousChar, prevCharStyle) {\n      // first i try to return from cache\n      var fontCache = this.getFontCache(charStyle), fontDeclaration = this._getFontDeclaration(charStyle),\n          previousFontDeclaration = this._getFontDeclaration(prevCharStyle), couple = previousChar + _char,\n          stylesAreEqual = fontDeclaration === previousFontDeclaration, width, coupleWidth, previousWidth,\n          fontMultiplier = charStyle.fontSize / this.CACHE_FONT_SIZE, kernedWidth;\n\n      if (previousChar && fontCache[previousChar] !== undefined) {\n        previousWidth = fontCache[previousChar];\n      }\n      if (fontCache[_char] !== undefined) {\n        kernedWidth = width = fontCache[_char];\n      }\n      if (stylesAreEqual && fontCache[couple] !== undefined) {\n        coupleWidth = fontCache[couple];\n        kernedWidth = coupleWidth - previousWidth;\n      }\n      if (width === undefined || previousWidth === undefined || coupleWidth === undefined) {\n        var ctx = this.getMeasuringContext();\n        // send a TRUE to specify measuring font size CACHE_FONT_SIZE\n        this._setTextStyles(ctx, charStyle, true);\n      }\n      if (width === undefined) {\n        kernedWidth = width = ctx.measureText(_char).width;\n        fontCache[_char] = width;\n      }\n      if (previousWidth === undefined && stylesAreEqual && previousChar) {\n        previousWidth = ctx.measureText(previousChar).width;\n        fontCache[previousChar] = previousWidth;\n      }\n      if (stylesAreEqual && coupleWidth === undefined) {\n        // we can measure the kerning couple and subtract the width of the previous character\n        coupleWidth = ctx.measureText(couple).width;\n        fontCache[couple] = coupleWidth;\n        kernedWidth = coupleWidth - previousWidth;\n      }\n      return { width: width * fontMultiplier, kernedWidth: kernedWidth * fontMultiplier };\n    },\n\n    /**\n     * Computes height of character at given position\n     * @param {Number} line the line index number\n     * @param {Number} _char the character index number\n     * @return {Number} fontSize of the character\n     */\n    getHeightOfChar: function(line, _char) {\n      return this.getValueOfPropertyAt(line, _char, 'fontSize');\n    },\n\n    /**\n     * measure a text line measuring all characters.\n     * @param {Number} lineIndex line number\n     * @return {Number} Line width\n     */\n    measureLine: function(lineIndex) {\n      var lineInfo = this._measureLine(lineIndex);\n      if (this.charSpacing !== 0) {\n        lineInfo.width -= this._getWidthOfCharSpacing();\n      }\n      if (lineInfo.width < 0) {\n        lineInfo.width = 0;\n      }\n      return lineInfo;\n    },\n\n    /**\n     * measure every grapheme of a line, populating __charBounds\n     * @param {Number} lineIndex\n     * @return {Object} object.width total width of characters\n     * @return {Object} object.widthOfSpaces length of chars that match this._reSpacesAndTabs\n     */\n    _measureLine: function(lineIndex) {\n      var width = 0, i, grapheme, line = this._textLines[lineIndex], prevGrapheme,\n          graphemeInfo, numOfSpaces = 0, lineBounds = new Array(line.length);\n\n      this.__charBounds[lineIndex] = lineBounds;\n      for (i = 0; i < line.length; i++) {\n        grapheme = line[i];\n        graphemeInfo = this._getGraphemeBox(grapheme, lineIndex, i, prevGrapheme);\n        lineBounds[i] = graphemeInfo;\n        width += graphemeInfo.kernedWidth;\n        prevGrapheme = grapheme;\n      }\n      // this latest bound box represent the last character of the line\n      // to simplify cursor handling in interactive mode.\n      lineBounds[i] = {\n        left: graphemeInfo ? graphemeInfo.left + graphemeInfo.width : 0,\n        width: 0,\n        kernedWidth: 0,\n        height: this.fontSize\n      };\n      return { width: width, numOfSpaces: numOfSpaces };\n    },\n\n    /**\n     * Measure and return the info of a single grapheme.\n     * needs the the info of previous graphemes already filled\n     * @private\n     * @param {String} grapheme to be measured\n     * @param {Number} lineIndex index of the line where the char is\n     * @param {Number} charIndex position in the line\n     * @param {String} [prevGrapheme] character preceding the one to be measured\n     */\n    _getGraphemeBox: function(grapheme, lineIndex, charIndex, prevGrapheme, skipLeft) {\n      var style = this.getCompleteStyleDeclaration(lineIndex, charIndex),\n          prevStyle = prevGrapheme ? this.getCompleteStyleDeclaration(lineIndex, charIndex - 1) : { },\n          info = this._measureChar(grapheme, style, prevGrapheme, prevStyle),\n          kernedWidth = info.kernedWidth,\n          width = info.width, charSpacing;\n\n      if (this.charSpacing !== 0) {\n        charSpacing = this._getWidthOfCharSpacing();\n        width += charSpacing;\n        kernedWidth += charSpacing;\n      }\n\n      var box = {\n        width: width,\n        left: 0,\n        height: style.fontSize,\n        kernedWidth: kernedWidth,\n        deltaY: style.deltaY,\n      };\n      if (charIndex > 0 && !skipLeft) {\n        var previousBox = this.__charBounds[lineIndex][charIndex - 1];\n        box.left = previousBox.left + previousBox.width + info.kernedWidth - info.width;\n      }\n      return box;\n    },\n\n    /**\n     * Calculate height of line at 'lineIndex'\n     * @param {Number} lineIndex index of line to calculate\n     * @return {Number}\n     */\n    getHeightOfLine: function(lineIndex) {\n      if (this.__lineHeights[lineIndex]) {\n        return this.__lineHeights[lineIndex];\n      }\n\n      var line = this._textLines[lineIndex],\n          // char 0 is measured before the line cycle because it nneds to char\n          // emptylines\n          maxHeight = this.getHeightOfChar(lineIndex, 0);\n      for (var i = 1, len = line.length; i < len; i++) {\n        maxHeight = Math.max(this.getHeightOfChar(lineIndex, i), maxHeight);\n      }\n\n      return this.__lineHeights[lineIndex] = maxHeight * this.lineHeight * this._fontSizeMult;\n    },\n\n    /**\n     * Calculate text box height\n     */\n    calcTextHeight: function() {\n      var lineHeight, height = 0;\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        lineHeight = this.getHeightOfLine(i);\n        height += (i === len - 1 ? lineHeight / this.lineHeight : lineHeight);\n      }\n      return height;\n    },\n\n    /**\n     * @private\n     * @return {Number} Left offset\n     */\n    _getLeftOffset: function() {\n      return -this.width / 2;\n    },\n\n    /**\n     * @private\n     * @return {Number} Top offset\n     */\n    _getTopOffset: function() {\n      return -this.height / 2;\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Object} filler fabric.Pattern or fabric.Gradient\n     * @return {Object} offset.offsetX offset for text rendering\n     * @return {Object} offset.offsetY offset for text rendering\n     */\n    _applyPatternGradientTransform: function(ctx, filler) {\n      if (!filler || !filler.toLive) {\n        return { offsetX: 0, offsetY: 0 };\n      }\n      var offsetX = -this.width / 2 + filler.offsetX || 0,\n          offsetY = -this.height / 2 + filler.offsetY || 0;\n\n      ctx.transform(1, 0, 0, 1, offsetX, offsetY);\n      return { offsetX: offsetX, offsetY: offsetY };\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {String} method Method name (\"fillText\" or \"strokeText\")\n     */\n    _renderTextCommon: function(ctx, method) {\n      ctx.save();\n      var lineHeights = 0, left = this._getLeftOffset(), top = this._getTopOffset(),\n          offsets = this._applyPatternGradientTransform(ctx, method === 'fillText' ? this.fill : this.stroke);\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        var heightOfLine = this.getHeightOfLine(i),\n            maxHeight = heightOfLine / this.lineHeight,\n            leftOffset = this._getLineLeftOffset(i);\n        this._renderTextLine(\n          method,\n          ctx,\n          this._textLines[i],\n          left + leftOffset - offsets.offsetX,\n          top + lineHeights + maxHeight - offsets.offsetY,\n          i\n        );\n        lineHeights += heightOfLine;\n      }\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextFill: function(ctx) {\n      if (!this.fill && !this.styleHas('fill')) {\n        return;\n      }\n\n      this._renderTextCommon(ctx, 'fillText');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextStroke: function(ctx) {\n      if ((!this.stroke || this.strokeWidth === 0) && this.isEmptyStyles()) {\n        return;\n      }\n\n      if (this.shadow && !this.shadow.affectStroke) {\n        this._removeShadow(ctx);\n      }\n\n      ctx.save();\n      this._setLineDash(ctx, this.strokeDashArray);\n      ctx.beginPath();\n      this._renderTextCommon(ctx, 'strokeText');\n      ctx.closePath();\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {String} method\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {String} line Content of the line\n     * @param {Number} left\n     * @param {Number} top\n     * @param {Number} lineIndex\n     * @param {Number} charOffset\n     */\n    _renderChars: function(method, ctx, line, left, top, lineIndex) {\n      // set proper line offset\n      var lineHeight = this.getHeightOfLine(lineIndex),\n          isJustify = this.textAlign.indexOf('justify') !== -1,\n          actualStyle,\n          nextStyle,\n          charsToRender = '',\n          charBox,\n          boxWidth = 0,\n          timeToRender,\n          shortCut = !isJustify && this.charSpacing === 0 && this.isEmptyStyles(lineIndex);\n\n      ctx.save();\n      top -= lineHeight * this._fontSizeFraction / this.lineHeight;\n      if (shortCut) {\n        // render all the line in one pass without checking\n        this._renderChar(method, ctx, lineIndex, 0, this.textLines[lineIndex], left, top, lineHeight);\n        ctx.restore();\n        return;\n      }\n      for (var i = 0, len = line.length - 1; i <= len; i++) {\n        timeToRender = i === len || this.charSpacing;\n        charsToRender += line[i];\n        charBox = this.__charBounds[lineIndex][i];\n        if (boxWidth === 0) {\n          left += charBox.kernedWidth - charBox.width;\n          boxWidth += charBox.width;\n        }\n        else {\n          boxWidth += charBox.kernedWidth;\n        }\n        if (isJustify && !timeToRender) {\n          if (this._reSpaceAndTab.test(line[i])) {\n            timeToRender = true;\n          }\n        }\n        if (!timeToRender) {\n          // if we have charSpacing, we render char by char\n          actualStyle = actualStyle || this.getCompleteStyleDeclaration(lineIndex, i);\n          nextStyle = this.getCompleteStyleDeclaration(lineIndex, i + 1);\n          timeToRender = this._hasStyleChanged(actualStyle, nextStyle);\n        }\n        if (timeToRender) {\n          this._renderChar(method, ctx, lineIndex, i, charsToRender, left, top, lineHeight);\n          charsToRender = '';\n          actualStyle = nextStyle;\n          left += boxWidth;\n          boxWidth = 0;\n        }\n      }\n      ctx.restore();\n    },\n\n    /**\n     * @private\n     * @param {String} method\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {String} _char\n     * @param {Number} left Left coordinate\n     * @param {Number} top Top coordinate\n     * @param {Number} lineHeight Height of the line\n     */\n    _renderChar: function(method, ctx, lineIndex, charIndex, _char, left, top) {\n      var decl = this._getStyleDeclaration(lineIndex, charIndex),\n          fullDecl = this.getCompleteStyleDeclaration(lineIndex, charIndex),\n          shouldFill = method === 'fillText' && fullDecl.fill,\n          shouldStroke = method === 'strokeText' && fullDecl.stroke && fullDecl.strokeWidth;\n\n      if (!shouldStroke && !shouldFill) {\n        return;\n      }\n      decl && ctx.save();\n\n      this._applyCharStyles(method, ctx, lineIndex, charIndex, fullDecl);\n\n      if (decl && decl.textBackgroundColor) {\n        this._removeShadow(ctx);\n      }\n      if (decl && decl.deltaY) {\n        top += decl.deltaY;\n      }\n\n      shouldFill && ctx.fillText(_char, left, top);\n      shouldStroke && ctx.strokeText(_char, left, top);\n      decl && ctx.restore();\n    },\n\n    /**\n     * Turns the character into a 'superior figure' (i.e. 'superscript')\n     * @param {Number} start selection start\n     * @param {Number} end selection end\n     * @returns {fabric.Text} thisArg\n     * @chainable\n     */\n    setSuperscript: function(start, end) {\n      return this._setScript(start, end, this.superscript);\n    },\n\n    /**\n     * Turns the character into an 'inferior figure' (i.e. 'subscript')\n     * @param {Number} start selection start\n     * @param {Number} end selection end\n     * @returns {fabric.Text} thisArg\n     * @chainable\n     */\n    setSubscript: function(start, end) {\n      return this._setScript(start, end, this.subscript);\n    },\n\n    /**\n     * Applies 'schema' at given position\n     * @private\n     * @param {Number} start selection start\n     * @param {Number} end selection end\n     * @param {Number} schema\n     * @returns {fabric.Text} thisArg\n     * @chainable\n     */\n    _setScript: function(start, end, schema) {\n      var loc = this.get2DCursorLocation(start, true),\n          fontSize = this.getValueOfPropertyAt(loc.lineIndex, loc.charIndex, 'fontSize'),\n          dy = this.getValueOfPropertyAt(loc.lineIndex, loc.charIndex, 'deltaY'),\n          style = { fontSize: fontSize * schema.size, deltaY: dy + fontSize * schema.baseline };\n      this.setSelectionStyles(style, start, end);\n      return this;\n    },\n\n    /**\n     * @private\n     * @param {Object} prevStyle\n     * @param {Object} thisStyle\n     */\n    _hasStyleChanged: function(prevStyle, thisStyle) {\n      return prevStyle.fill !== thisStyle.fill ||\n              prevStyle.stroke !== thisStyle.stroke ||\n              prevStyle.strokeWidth !== thisStyle.strokeWidth ||\n              prevStyle.fontSize !== thisStyle.fontSize ||\n              prevStyle.fontFamily !== thisStyle.fontFamily ||\n              prevStyle.fontWeight !== thisStyle.fontWeight ||\n              prevStyle.fontStyle !== thisStyle.fontStyle ||\n              prevStyle.deltaY !== thisStyle.deltaY;\n    },\n\n    /**\n     * @private\n     * @param {Object} prevStyle\n     * @param {Object} thisStyle\n     */\n    _hasStyleChangedForSvg: function(prevStyle, thisStyle) {\n      return this._hasStyleChanged(prevStyle, thisStyle) ||\n        prevStyle.overline !== thisStyle.overline ||\n        prevStyle.underline !== thisStyle.underline ||\n        prevStyle.linethrough !== thisStyle.linethrough;\n    },\n\n    /**\n     * @private\n     * @param {Number} lineIndex index text line\n     * @return {Number} Line left offset\n     */\n    _getLineLeftOffset: function(lineIndex) {\n      var lineWidth = this.getLineWidth(lineIndex);\n      if (this.textAlign === 'center') {\n        return (this.width - lineWidth) / 2;\n      }\n      if (this.textAlign === 'right') {\n        return this.width - lineWidth;\n      }\n      if (this.textAlign === 'justify-center' && this.isEndOfWrapping(lineIndex)) {\n        return (this.width - lineWidth) / 2;\n      }\n      if (this.textAlign === 'justify-right' && this.isEndOfWrapping(lineIndex)) {\n        return this.width - lineWidth;\n      }\n      return 0;\n    },\n\n    /**\n     * @private\n     */\n    _clearCache: function() {\n      this.__lineWidths = [];\n      this.__lineHeights = [];\n      this.__charBounds = [];\n    },\n\n    /**\n     * @private\n     */\n    _shouldClearDimensionCache: function() {\n      var shouldClear = this._forceClearCache;\n      shouldClear || (shouldClear = this.hasStateChanged('_dimensionAffectingProps'));\n      if (shouldClear) {\n        this.dirty = true;\n        this._forceClearCache = false;\n      }\n      return shouldClear;\n    },\n\n    /**\n     * Measure a single line given its index. Used to calculate the initial\n     * text bounding box. The values are calculated and stored in __lineWidths cache.\n     * @private\n     * @param {Number} lineIndex line number\n     * @return {Number} Line width\n     */\n    getLineWidth: function(lineIndex) {\n      if (this.__lineWidths[lineIndex]) {\n        return this.__lineWidths[lineIndex];\n      }\n\n      var width, line = this._textLines[lineIndex], lineInfo;\n\n      if (line === '') {\n        width = 0;\n      }\n      else {\n        lineInfo = this.measureLine(lineIndex);\n        width = lineInfo.width;\n      }\n      this.__lineWidths[lineIndex] = width;\n      return width;\n    },\n\n    _getWidthOfCharSpacing: function() {\n      if (this.charSpacing !== 0) {\n        return this.fontSize * this.charSpacing / 1000;\n      }\n      return 0;\n    },\n\n    /**\n     * Retrieves the value of property at given character position\n     * @param {Number} lineIndex the line number\n     * @param {Number} charIndex the charater number\n     * @param {String} property the property name\n     * @returns the value of 'property'\n     */\n    getValueOfPropertyAt: function(lineIndex, charIndex, property) {\n      var charStyle = this._getStyleDeclaration(lineIndex, charIndex);\n      if (charStyle && typeof charStyle[property] !== 'undefined') {\n        return charStyle[property];\n      }\n      return this[property];\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _renderTextDecoration: function(ctx, type) {\n      if (!this[type] && !this.styleHas(type)) {\n        return;\n      }\n      var heightOfLine, size, _size,\n          lineLeftOffset, dy, _dy,\n          line, lastDecoration,\n          leftOffset = this._getLeftOffset(),\n          topOffset = this._getTopOffset(), top,\n          boxStart, boxWidth, charBox, currentDecoration,\n          maxHeight, currentFill, lastFill,\n          charSpacing = this._getWidthOfCharSpacing();\n\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        heightOfLine = this.getHeightOfLine(i);\n        if (!this[type] && !this.styleHas(type, i)) {\n          topOffset += heightOfLine;\n          continue;\n        }\n        line = this._textLines[i];\n        maxHeight = heightOfLine / this.lineHeight;\n        lineLeftOffset = this._getLineLeftOffset(i);\n        boxStart = 0;\n        boxWidth = 0;\n        lastDecoration = this.getValueOfPropertyAt(i, 0, type);\n        lastFill = this.getValueOfPropertyAt(i, 0, 'fill');\n        top = topOffset + maxHeight * (1 - this._fontSizeFraction);\n        size = this.getHeightOfChar(i, 0);\n        dy = this.getValueOfPropertyAt(i, 0, 'deltaY');\n        for (var j = 0, jlen = line.length; j < jlen; j++) {\n          charBox = this.__charBounds[i][j];\n          currentDecoration = this.getValueOfPropertyAt(i, j, type);\n          currentFill = this.getValueOfPropertyAt(i, j, 'fill');\n          _size = this.getHeightOfChar(i, j);\n          _dy = this.getValueOfPropertyAt(i, j, 'deltaY');\n          if ((currentDecoration !== lastDecoration || currentFill !== lastFill || _size !== size || _dy !== dy) &&\n              boxWidth > 0) {\n            ctx.fillStyle = lastFill;\n            lastDecoration && lastFill && ctx.fillRect(\n              leftOffset + lineLeftOffset + boxStart,\n              top + this.offsets[type] * size + dy,\n              boxWidth,\n              this.fontSize / 15\n            );\n            boxStart = charBox.left;\n            boxWidth = charBox.width;\n            lastDecoration = currentDecoration;\n            lastFill = currentFill;\n            size = _size;\n            dy = _dy;\n          }\n          else {\n            boxWidth += charBox.kernedWidth;\n          }\n        }\n        ctx.fillStyle = currentFill;\n        currentDecoration && currentFill && ctx.fillRect(\n          leftOffset + lineLeftOffset + boxStart,\n          top + this.offsets[type] * size + dy,\n          boxWidth - charSpacing,\n          this.fontSize / 15\n        );\n        topOffset += heightOfLine;\n      }\n      // if there is text background color no\n      // other shadows should be casted\n      this._removeShadow(ctx);\n    },\n\n    /**\n     * return font declaration string for canvas context\n     * @param {Object} [styleObject] object\n     * @returns {String} font declaration formatted for canvas context.\n     */\n    _getFontDeclaration: function(styleObject, forMeasuring) {\n      var style = styleObject || this, family = this.fontFamily,\n          fontIsGeneric = fabric.Text.genericFonts.indexOf(family.toLowerCase()) > -1;\n      var fontFamily = family === undefined ||\n      family.indexOf('\\'') > -1 || family.indexOf(',') > -1 ||\n      family.indexOf('\"') > -1 || fontIsGeneric\n        ? style.fontFamily : '\"' + style.fontFamily + '\"';\n      return [\n        // node-canvas needs \"weight style\", while browsers need \"style weight\"\n        // verify if this can be fixed in JSDOM\n        (fabric.isLikelyNode ? style.fontWeight : style.fontStyle),\n        (fabric.isLikelyNode ? style.fontStyle : style.fontWeight),\n        forMeasuring ? this.CACHE_FONT_SIZE + 'px' : style.fontSize + 'px',\n        fontFamily\n      ].join(' ');\n    },\n\n    /**\n     * Renders text instance on a specified context\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    render: function(ctx) {\n      // do not render if object is not visible\n      if (!this.visible) {\n        return;\n      }\n      if (this.canvas && this.canvas.skipOffscreen && !this.group && !this.isOnScreen()) {\n        return;\n      }\n      if (this._shouldClearDimensionCache()) {\n        this.initDimensions();\n      }\n      this.callSuper('render', ctx);\n    },\n\n    /**\n     * Returns the text as an array of lines.\n     * @param {String} text text to split\n     * @returns {Array} Lines in the text\n     */\n    _splitTextIntoLines: function(text) {\n      var lines = text.split(this._reNewline),\n          newLines = new Array(lines.length),\n          newLine = ['\\n'],\n          newText = [];\n      for (var i = 0; i < lines.length; i++) {\n        newLines[i] = fabric.util.string.graphemeSplit(lines[i]);\n        newText = newText.concat(newLines[i], newLine);\n      }\n      newText.pop();\n      return { _unwrappedLines: newLines, lines: lines, graphemeText: newText, graphemeLines: newLines };\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} Object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      var additionalProperties = [\n        'text',\n        'fontSize',\n        'fontWeight',\n        'fontFamily',\n        'fontStyle',\n        'lineHeight',\n        'underline',\n        'overline',\n        'linethrough',\n        'textAlign',\n        'textBackgroundColor',\n        'charSpacing',\n      ].concat(propertiesToInclude);\n      var obj = this.callSuper('toObject', additionalProperties);\n      obj.styles = clone(this.styles, true);\n      return obj;\n    },\n\n    /**\n     * Sets property to a given value. When changing position/dimension -related properties (left, top, scale, angle, etc.) `set` does not update position of object's borders/controls. If you need to update those, call `setCoords()`.\n     * @param {String|Object} key Property name or object (if object, iterate over the object properties)\n     * @param {Object|Function} value Property value (if function, the value is passed into it and its return value is used as a new one)\n     * @return {fabric.Object} thisArg\n     * @chainable\n     */\n    set: function(key, value) {\n      this.callSuper('set', key, value);\n      var needsDims = false;\n      if (typeof key === 'object') {\n        for (var _key in key) {\n          needsDims = needsDims || this._dimensionAffectingProps.indexOf(_key) !== -1;\n        }\n      }\n      else {\n        needsDims = this._dimensionAffectingProps.indexOf(key) !== -1;\n      }\n      if (needsDims) {\n        this.initDimensions();\n        this.setCoords();\n      }\n      return this;\n    },\n\n    /**\n     * Returns complexity of an instance\n     * @return {Number} complexity\n     */\n    complexity: function() {\n      return 1;\n    }\n  });\n\n  /* _FROM_SVG_START_ */\n  /**\n   * List of attribute names to account for when parsing SVG element (used by {@link fabric.Text.fromElement})\n   * @static\n   * @memberOf fabric.Text\n   * @see: http://www.w3.org/TR/SVG/text.html#TextElement\n   */\n  fabric.Text.ATTRIBUTE_NAMES = fabric.SHARED_ATTRIBUTES.concat(\n    'x y dx dy font-family font-style font-weight font-size letter-spacing text-decoration text-anchor'.split(' '));\n\n  /**\n   * Default SVG font size\n   * @static\n   * @memberOf fabric.Text\n   */\n  fabric.Text.DEFAULT_SVG_FONT_SIZE = 16;\n\n  /**\n   * Returns fabric.Text instance from an SVG element (<b>not yet implemented</b>)\n   * @static\n   * @memberOf fabric.Text\n   * @param {SVGElement} element Element to parse\n   * @param {Function} callback callback function invoked after parsing\n   * @param {Object} [options] Options object\n   */\n  fabric.Text.fromElement = function(element, callback, options) {\n    if (!element) {\n      return callback(null);\n    }\n\n    var parsedAttributes = fabric.parseAttributes(element, fabric.Text.ATTRIBUTE_NAMES),\n        parsedAnchor = parsedAttributes.textAnchor || 'left';\n    options = fabric.util.object.extend((options ? clone(options) : { }), parsedAttributes);\n\n    options.top = options.top || 0;\n    options.left = options.left || 0;\n    if (parsedAttributes.textDecoration) {\n      var textDecoration = parsedAttributes.textDecoration;\n      if (textDecoration.indexOf('underline') !== -1) {\n        options.underline = true;\n      }\n      if (textDecoration.indexOf('overline') !== -1) {\n        options.overline = true;\n      }\n      if (textDecoration.indexOf('line-through') !== -1) {\n        options.linethrough = true;\n      }\n      delete options.textDecoration;\n    }\n    if ('dx' in parsedAttributes) {\n      options.left += parsedAttributes.dx;\n    }\n    if ('dy' in parsedAttributes) {\n      options.top += parsedAttributes.dy;\n    }\n    if (!('fontSize' in options)) {\n      options.fontSize = fabric.Text.DEFAULT_SVG_FONT_SIZE;\n    }\n\n    var textContent = '';\n\n    // The XML is not properly parsed in IE9 so a workaround to get\n    // textContent is through firstChild.data. Another workaround would be\n    // to convert XML loaded from a file to be converted using DOMParser (same way loadSVGFromString() does)\n    if (!('textContent' in element)) {\n      if ('firstChild' in element && element.firstChild !== null) {\n        if ('data' in element.firstChild && element.firstChild.data !== null) {\n          textContent = element.firstChild.data;\n        }\n      }\n    }\n    else {\n      textContent = element.textContent;\n    }\n\n    textContent = textContent.replace(/^\\s+|\\s+$|\\n+/g, '').replace(/\\s+/g, ' ');\n    var originalStrokeWidth = options.strokeWidth;\n    options.strokeWidth = 0;\n\n    var text = new fabric.Text(textContent, options),\n        textHeightScaleFactor = text.getScaledHeight() / text.height,\n        lineHeightDiff = (text.height + text.strokeWidth) * text.lineHeight - text.height,\n        scaledDiff = lineHeightDiff * textHeightScaleFactor,\n        textHeight = text.getScaledHeight() + scaledDiff,\n        offX = 0;\n    /*\n      Adjust positioning:\n        x/y attributes in SVG correspond to the bottom-left corner of text bounding box\n        fabric output by default at top, left.\n    */\n    if (parsedAnchor === 'center') {\n      offX = text.getScaledWidth() / 2;\n    }\n    if (parsedAnchor === 'right') {\n      offX = text.getScaledWidth();\n    }\n    text.set({\n      left: text.left - offX,\n      top: text.top - (textHeight - text.fontSize * (0.07 + text._fontSizeFraction)) / text.lineHeight,\n      strokeWidth: typeof originalStrokeWidth !== 'undefined' ? originalStrokeWidth : 1,\n    });\n    callback(text);\n  };\n  /* _FROM_SVG_END_ */\n\n  /**\n   * Returns fabric.Text instance from an object representation\n   * @static\n   * @memberOf fabric.Text\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Text instance is created\n   */\n  fabric.Text.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Text', object, callback, 'text');\n  };\n\n  fabric.Text.genericFonts = ['sans-serif', 'serif', 'cursive', 'fantasy', 'monospace'];\n\n  fabric.util.createAccessors && fabric.util.createAccessors(fabric.Text);\n\n})(typeof exports !== 'undefined' ? exports : this);\n\n\n(function() {\n  fabric.util.object.extend(fabric.Text.prototype, /** @lends fabric.Text.prototype */ {\n    /**\n     * Returns true if object has no styling or no styling in a line\n     * @param {Number} lineIndex , lineIndex is on wrapped lines.\n     * @return {Boolean}\n     */\n    isEmptyStyles: function(lineIndex) {\n      if (!this.styles) {\n        return true;\n      }\n      if (typeof lineIndex !== 'undefined' && !this.styles[lineIndex]) {\n        return true;\n      }\n      var obj = typeof lineIndex === 'undefined' ? this.styles : { line: this.styles[lineIndex] };\n      for (var p1 in obj) {\n        for (var p2 in obj[p1]) {\n          // eslint-disable-next-line no-unused-vars\n          for (var p3 in obj[p1][p2]) {\n            return false;\n          }\n        }\n      }\n      return true;\n    },\n\n    /**\n     * Returns true if object has a style property or has it ina specified line\n     * This function is used to detect if a text will use a particular property or not.\n     * @param {String} property to check for\n     * @param {Number} lineIndex to check the style on\n     * @return {Boolean}\n     */\n    styleHas: function(property, lineIndex) {\n      if (!this.styles || !property || property === '') {\n        return false;\n      }\n      if (typeof lineIndex !== 'undefined' && !this.styles[lineIndex]) {\n        return false;\n      }\n      var obj = typeof lineIndex === 'undefined' ? this.styles : { 0: this.styles[lineIndex] };\n      // eslint-disable-next-line\n      for (var p1 in obj) {\n        // eslint-disable-next-line\n        for (var p2 in obj[p1]) {\n          if (typeof obj[p1][p2][property] !== 'undefined') {\n            return true;\n          }\n        }\n      }\n      return false;\n    },\n\n    /**\n     * Check if characters in a text have a value for a property\n     * whose value matches the textbox's value for that property.  If so,\n     * the character-level property is deleted.  If the character\n     * has no other properties, then it is also deleted.  Finally,\n     * if the line containing that character has no other characters\n     * then it also is deleted.\n     *\n     * @param {string} property The property to compare between characters and text.\n     */\n    cleanStyle: function(property) {\n      if (!this.styles || !property || property === '') {\n        return false;\n      }\n      var obj = this.styles, stylesCount = 0, letterCount, stylePropertyValue,\n          allStyleObjectPropertiesMatch = true, graphemeCount = 0, styleObject;\n      // eslint-disable-next-line\n      for (var p1 in obj) {\n        letterCount = 0;\n        // eslint-disable-next-line\n        for (var p2 in obj[p1]) {\n          var styleObject = obj[p1][p2],\n              stylePropertyHasBeenSet = styleObject.hasOwnProperty(property);\n\n          stylesCount++;\n\n          if (stylePropertyHasBeenSet) {\n            if (!stylePropertyValue) {\n              stylePropertyValue = styleObject[property];\n            }\n            else if (styleObject[property] !== stylePropertyValue) {\n              allStyleObjectPropertiesMatch = false;\n            }\n\n            if (styleObject[property] === this[property]) {\n              delete styleObject[property];\n            }\n          }\n          else {\n            allStyleObjectPropertiesMatch = false;\n          }\n\n          if (Object.keys(styleObject).length !== 0) {\n            letterCount++;\n          }\n          else {\n            delete obj[p1][p2];\n          }\n        }\n\n        if (letterCount === 0) {\n          delete obj[p1];\n        }\n      }\n      // if every grapheme has the same style set then\n      // delete those styles and set it on the parent\n      for (var i = 0; i < this._textLines.length; i++) {\n        graphemeCount += this._textLines[i].length;\n      }\n      if (allStyleObjectPropertiesMatch && stylesCount === graphemeCount) {\n        this[property] = stylePropertyValue;\n        this.removeStyle(property);\n      }\n    },\n\n    /**\n     * Remove a style property or properties from all individual character styles\n     * in a text object.  Deletes the character style object if it contains no other style\n     * props.  Deletes a line style object if it contains no other character styles.\n     *\n     * @param {String} props The property to remove from character styles.\n     */\n    removeStyle: function(property) {\n      if (!this.styles || !property || property === '') {\n        return;\n      }\n      var obj = this.styles, line, lineNum, charNum;\n      for (lineNum in obj) {\n        line = obj[lineNum];\n        for (charNum in line) {\n          delete line[charNum][property];\n          if (Object.keys(line[charNum]).length === 0) {\n            delete line[charNum];\n          }\n        }\n        if (Object.keys(line).length === 0) {\n          delete obj[lineNum];\n        }\n      }\n    },\n\n    /**\n     * @private\n     */\n    _extendStyles: function(index, styles) {\n      var loc = this.get2DCursorLocation(index);\n\n      if (!this._getLineStyle(loc.lineIndex)) {\n        this._setLineStyle(loc.lineIndex);\n      }\n\n      if (!this._getStyleDeclaration(loc.lineIndex, loc.charIndex)) {\n        this._setStyleDeclaration(loc.lineIndex, loc.charIndex, {});\n      }\n\n      fabric.util.object.extend(this._getStyleDeclaration(loc.lineIndex, loc.charIndex), styles);\n    },\n\n    /**\n     * Returns 2d representation (lineIndex and charIndex) of cursor (or selection start)\n     * @param {Number} [selectionStart] Optional index. When not given, current selectionStart is used.\n     * @param {Boolean} [skipWrapping] consider the location for unwrapped lines. usefull to manage styles.\n     */\n    get2DCursorLocation: function(selectionStart, skipWrapping) {\n      if (typeof selectionStart === 'undefined') {\n        selectionStart = this.selectionStart;\n      }\n      var lines = skipWrapping ? this._unwrappedTextLines : this._textLines,\n          len = lines.length;\n      for (var i = 0; i < len; i++) {\n        if (selectionStart <= lines[i].length) {\n          return {\n            lineIndex: i,\n            charIndex: selectionStart\n          };\n        }\n        selectionStart -= lines[i].length + this.missingNewlineOffset(i);\n      }\n      return {\n        lineIndex: i - 1,\n        charIndex: lines[i - 1].length < selectionStart ? lines[i - 1].length : selectionStart\n      };\n    },\n\n    /**\n     * Gets style of a current selection/cursor (at the start position)\n     * if startIndex or endIndex are not provided, slectionStart or selectionEnd will be used.\n     * @param {Number} [startIndex] Start index to get styles at\n     * @param {Number} [endIndex] End index to get styles at, if not specified selectionEnd or startIndex + 1\n     * @param {Boolean} [complete] get full style or not\n     * @return {Array} styles an array with one, zero or more Style objects\n     */\n    getSelectionStyles: function(startIndex, endIndex, complete) {\n      if (typeof startIndex === 'undefined') {\n        startIndex = this.selectionStart || 0;\n      }\n      if (typeof endIndex === 'undefined') {\n        endIndex = this.selectionEnd || startIndex;\n      }\n      var styles = [];\n      for (var i = startIndex; i < endIndex; i++) {\n        styles.push(this.getStyleAtPosition(i, complete));\n      }\n      return styles;\n    },\n\n    /**\n     * Gets style of a current selection/cursor position\n     * @param {Number} position  to get styles at\n     * @param {Boolean} [complete] full style if true\n     * @return {Object} style Style object at a specified index\n     * @private\n     */\n    getStyleAtPosition: function(position, complete) {\n      var loc = this.get2DCursorLocation(position),\n          style = complete ? this.getCompleteStyleDeclaration(loc.lineIndex, loc.charIndex) :\n            this._getStyleDeclaration(loc.lineIndex, loc.charIndex);\n      return style || {};\n    },\n\n    /**\n     * Sets style of a current selection, if no selection exist, do not set anything.\n     * @param {Object} [styles] Styles object\n     * @param {Number} [startIndex] Start index to get styles at\n     * @param {Number} [endIndex] End index to get styles at, if not specified selectionEnd or startIndex + 1\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    setSelectionStyles: function(styles, startIndex, endIndex) {\n      if (typeof startIndex === 'undefined') {\n        startIndex = this.selectionStart || 0;\n      }\n      if (typeof endIndex === 'undefined') {\n        endIndex = this.selectionEnd || startIndex;\n      }\n      for (var i = startIndex; i < endIndex; i++) {\n        this._extendStyles(i, styles);\n      }\n      /* not included in _extendStyles to avoid clearing cache more than once */\n      this._forceClearCache = true;\n      return this;\n    },\n\n    /**\n     * get the reference, not a clone, of the style object for a given character\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @return {Object} style object\n     */\n    _getStyleDeclaration: function(lineIndex, charIndex) {\n      var lineStyle = this.styles && this.styles[lineIndex];\n      if (!lineStyle) {\n        return null;\n      }\n      return lineStyle[charIndex];\n    },\n\n    /**\n     * return a new object that contains all the style property for a character\n     * the object returned is newly created\n     * @param {Number} lineIndex of the line where the character is\n     * @param {Number} charIndex position of the character on the line\n     * @return {Object} style object\n     */\n    getCompleteStyleDeclaration: function(lineIndex, charIndex) {\n      var style = this._getStyleDeclaration(lineIndex, charIndex) || { },\n          styleObject = { }, prop;\n      for (var i = 0; i < this._styleProperties.length; i++) {\n        prop = this._styleProperties[i];\n        styleObject[prop] = typeof style[prop] === 'undefined' ? this[prop] : style[prop];\n      }\n      return styleObject;\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {Object} style\n     * @private\n     */\n    _setStyleDeclaration: function(lineIndex, charIndex, style) {\n      this.styles[lineIndex][charIndex] = style;\n    },\n\n    /**\n     *\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @private\n     */\n    _deleteStyleDeclaration: function(lineIndex, charIndex) {\n      delete this.styles[lineIndex][charIndex];\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @return {Boolean} if the line exists or not\n     * @private\n     */\n    _getLineStyle: function(lineIndex) {\n      return !!this.styles[lineIndex];\n    },\n\n    /**\n     * Set the line style to an empty object so that is initialized\n     * @param {Number} lineIndex\n     * @private\n     */\n    _setLineStyle: function(lineIndex) {\n      this.styles[lineIndex] = {};\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @private\n     */\n    _deleteLineStyle: function(lineIndex) {\n      delete this.styles[lineIndex];\n    }\n  });\n})();\n\n\n(function() {\n\n  function parseDecoration(object) {\n    if (object.textDecoration) {\n      object.textDecoration.indexOf('underline') > -1 && (object.underline = true);\n      object.textDecoration.indexOf('line-through') > -1 && (object.linethrough = true);\n      object.textDecoration.indexOf('overline') > -1 && (object.overline = true);\n      delete object.textDecoration;\n    }\n  }\n\n  /**\n   * IText class (introduced in <b>v1.4</b>) Events are also fired with \"text:\"\n   * prefix when observing canvas.\n   * @class fabric.IText\n   * @extends fabric.Text\n   * @mixes fabric.Observable\n   *\n   * @fires changed\n   * @fires selection:changed\n   * @fires editing:entered\n   * @fires editing:exited\n   *\n   * @return {fabric.IText} thisArg\n   * @see {@link fabric.IText#initialize} for constructor definition\n   *\n   * <p>Supported key combinations:</p>\n   * <pre>\n   *   Move cursor:                    left, right, up, down\n   *   Select character:               shift + left, shift + right\n   *   Select text vertically:         shift + up, shift + down\n   *   Move cursor by word:            alt + left, alt + right\n   *   Select words:                   shift + alt + left, shift + alt + right\n   *   Move cursor to line start/end:  cmd + left, cmd + right or home, end\n   *   Select till start/end of line:  cmd + shift + left, cmd + shift + right or shift + home, shift + end\n   *   Jump to start/end of text:      cmd + up, cmd + down\n   *   Select till start/end of text:  cmd + shift + up, cmd + shift + down or shift + pgUp, shift + pgDown\n   *   Delete character:               backspace\n   *   Delete word:                    alt + backspace\n   *   Delete line:                    cmd + backspace\n   *   Forward delete:                 delete\n   *   Copy text:                      ctrl/cmd + c\n   *   Paste text:                     ctrl/cmd + v\n   *   Cut text:                       ctrl/cmd + x\n   *   Select entire text:             ctrl/cmd + a\n   *   Quit editing                    tab or esc\n   * </pre>\n   *\n   * <p>Supported mouse/touch combination</p>\n   * <pre>\n   *   Position cursor:                click/touch\n   *   Create selection:               click/touch & drag\n   *   Create selection:               click & shift + click\n   *   Select word:                    double click\n   *   Select line:                    triple click\n   * </pre>\n   */\n  fabric.IText = fabric.util.createClass(fabric.Text, fabric.Observable, /** @lends fabric.IText.prototype */ {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'i-text',\n\n    /**\n     * Index where text selection starts (or where cursor is when there is no selection)\n     * @type Number\n     * @default\n     */\n    selectionStart: 0,\n\n    /**\n     * Index where text selection ends\n     * @type Number\n     * @default\n     */\n    selectionEnd: 0,\n\n    /**\n     * Color of text selection\n     * @type String\n     * @default\n     */\n    selectionColor: 'rgba(17,119,255,0.3)',\n\n    /**\n     * Indicates whether text is in editing mode\n     * @type Boolean\n     * @default\n     */\n    isEditing: false,\n\n    /**\n     * Indicates whether a text can be edited\n     * @type Boolean\n     * @default\n     */\n    editable: true,\n\n    /**\n     * Border color of text object while it's in editing mode\n     * @type String\n     * @default\n     */\n    editingBorderColor: 'rgba(102,153,255,0.25)',\n\n    /**\n     * Width of cursor (in px)\n     * @type Number\n     * @default\n     */\n    cursorWidth: 2,\n\n    /**\n     * Color of default cursor (when not overwritten by character style)\n     * @type String\n     * @default\n     */\n    cursorColor: '#333',\n\n    /**\n     * Delay between cursor blink (in ms)\n     * @type Number\n     * @default\n     */\n    cursorDelay: 1000,\n\n    /**\n     * Duration of cursor fadein (in ms)\n     * @type Number\n     * @default\n     */\n    cursorDuration: 600,\n\n    /**\n     * Indicates whether internal text char widths can be cached\n     * @type Boolean\n     * @default\n     */\n    caching: true,\n\n    /**\n     * @private\n     */\n    _reSpace: /\\s|\\n/,\n\n    /**\n     * @private\n     */\n    _currentCursorOpacity: 0,\n\n    /**\n     * @private\n     */\n    _selectionDirection: null,\n\n    /**\n     * @private\n     */\n    _abortCursorAnimation: false,\n\n    /**\n     * @private\n     */\n    __widthOfSpace: [],\n\n    /**\n     * Helps determining when the text is in composition, so that the cursor\n     * rendering is altered.\n     */\n    inCompositionMode: false,\n\n    /**\n     * Constructor\n     * @param {String} text Text string\n     * @param {Object} [options] Options object\n     * @return {fabric.IText} thisArg\n     */\n    initialize: function(text, options) {\n      this.callSuper('initialize', text, options);\n      this.initBehavior();\n    },\n\n    /**\n     * Sets selection start (left boundary of a selection)\n     * @param {Number} index Index to set selection start to\n     */\n    setSelectionStart: function(index) {\n      index = Math.max(index, 0);\n      this._updateAndFire('selectionStart', index);\n    },\n\n    /**\n     * Sets selection end (right boundary of a selection)\n     * @param {Number} index Index to set selection end to\n     */\n    setSelectionEnd: function(index) {\n      index = Math.min(index, this.text.length);\n      this._updateAndFire('selectionEnd', index);\n    },\n\n    /**\n     * @private\n     * @param {String} property 'selectionStart' or 'selectionEnd'\n     * @param {Number} index new position of property\n     */\n    _updateAndFire: function(property, index) {\n      if (this[property] !== index) {\n        this._fireSelectionChanged();\n        this[property] = index;\n      }\n      this._updateTextarea();\n    },\n\n    /**\n     * Fires the even of selection changed\n     * @private\n     */\n    _fireSelectionChanged: function() {\n      this.fire('selection:changed');\n      this.canvas && this.canvas.fire('text:selection:changed', { target: this });\n    },\n\n    /**\n     * Initialize text dimensions. Render all text on given context\n     * or on a offscreen canvas to get the text width with measureText.\n     * Updates this.width and this.height with the proper values.\n     * Does not return dimensions.\n     * @private\n     */\n    initDimensions: function() {\n      this.isEditing && this.initDelayedCursor();\n      this.clearContextTop();\n      this.callSuper('initDimensions');\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    render: function(ctx) {\n      this.clearContextTop();\n      this.callSuper('render', ctx);\n      // clear the cursorOffsetCache, so we ensure to calculate once per renderCursor\n      // the correct position but not at every cursor animation.\n      this.cursorOffsetCache = { };\n      this.renderCursorOrSelection();\n    },\n\n    /**\n     * @private\n     * @param {CanvasRenderingContext2D} ctx Context to render on\n     */\n    _render: function(ctx) {\n      this.callSuper('_render', ctx);\n    },\n\n    /**\n     * Prepare and clean the contextTop\n     */\n    clearContextTop: function(skipRestore) {\n      if (!this.isEditing || !this.canvas || !this.canvas.contextTop) {\n        return;\n      }\n      var ctx = this.canvas.contextTop, v = this.canvas.viewportTransform;\n      ctx.save();\n      ctx.transform(v[0], v[1], v[2], v[3], v[4], v[5]);\n      this.transform(ctx);\n      this.transformMatrix && ctx.transform.apply(ctx, this.transformMatrix);\n      this._clearTextArea(ctx);\n      skipRestore || ctx.restore();\n    },\n\n    /**\n     * Renders cursor or selection (depending on what exists)\n     * it does on the contextTop. If contextTop is not available, do nothing.\n     */\n    renderCursorOrSelection: function() {\n      if (!this.isEditing || !this.canvas || !this.canvas.contextTop) {\n        return;\n      }\n      var boundaries = this._getCursorBoundaries(),\n          ctx = this.canvas.contextTop;\n      this.clearContextTop(true);\n      if (this.selectionStart === this.selectionEnd) {\n        this.renderCursor(boundaries, ctx);\n      }\n      else {\n        this.renderSelection(boundaries, ctx);\n      }\n      ctx.restore();\n    },\n\n    _clearTextArea: function(ctx) {\n      // we add 4 pixel, to be sure to do not leave any pixel out\n      var width = this.width + 4, height = this.height + 4;\n      ctx.clearRect(-width / 2, -height / 2, width, height);\n    },\n\n    /**\n     * Returns cursor boundaries (left, top, leftOffset, topOffset)\n     * @private\n     * @param {Array} chars Array of characters\n     * @param {String} typeOfBoundaries\n     */\n    _getCursorBoundaries: function(position) {\n\n      // left/top are left/top of entire text box\n      // leftOffset/topOffset are offset from that left/top point of a text box\n\n      if (typeof position === 'undefined') {\n        position = this.selectionStart;\n      }\n\n      var left = this._getLeftOffset(),\n          top = this._getTopOffset(),\n          offsets = this._getCursorBoundariesOffsets(position);\n\n      return {\n        left: left,\n        top: top,\n        leftOffset: offsets.left,\n        topOffset: offsets.top\n      };\n    },\n\n    /**\n     * @private\n     */\n    _getCursorBoundariesOffsets: function(position) {\n      if (this.cursorOffsetCache && 'top' in this.cursorOffsetCache) {\n        return this.cursorOffsetCache;\n      }\n      var lineLeftOffset,\n          lineIndex,\n          charIndex,\n          topOffset = 0,\n          leftOffset = 0,\n          boundaries,\n          cursorPosition = this.get2DCursorLocation(position);\n      charIndex = cursorPosition.charIndex;\n      lineIndex = cursorPosition.lineIndex;\n      for (var i = 0; i < lineIndex; i++) {\n        topOffset += this.getHeightOfLine(i);\n      }\n      lineLeftOffset = this._getLineLeftOffset(lineIndex);\n      var bound = this.__charBounds[lineIndex][charIndex];\n      bound && (leftOffset = bound.left);\n      if (this.charSpacing !== 0 && charIndex === this._textLines[lineIndex].length) {\n        leftOffset -= this._getWidthOfCharSpacing();\n      }\n      boundaries = {\n        top: topOffset,\n        left: lineLeftOffset + (leftOffset > 0 ? leftOffset : 0),\n      };\n      this.cursorOffsetCache = boundaries;\n      return this.cursorOffsetCache;\n    },\n\n    /**\n     * Renders cursor\n     * @param {Object} boundaries\n     * @param {CanvasRenderingContext2D} ctx transformed context to draw on\n     */\n    renderCursor: function(boundaries, ctx) {\n      var cursorLocation = this.get2DCursorLocation(),\n          lineIndex = cursorLocation.lineIndex,\n          charIndex = cursorLocation.charIndex > 0 ? cursorLocation.charIndex - 1 : 0,\n          charHeight = this.getValueOfPropertyAt(lineIndex, charIndex, 'fontSize'),\n          multiplier = this.scaleX * this.canvas.getZoom(),\n          cursorWidth = this.cursorWidth / multiplier,\n          topOffset = boundaries.topOffset,\n          dy = this.getValueOfPropertyAt(lineIndex, charIndex, 'deltaY');\n\n      topOffset += (1 - this._fontSizeFraction) * this.getHeightOfLine(lineIndex) / this.lineHeight\n        - charHeight * (1 - this._fontSizeFraction);\n\n      if (this.inCompositionMode) {\n        this.renderSelection(boundaries, ctx);\n      }\n\n      ctx.fillStyle = this.getValueOfPropertyAt(lineIndex, charIndex, 'fill');\n      ctx.globalAlpha = this.__isMousedown ? 1 : this._currentCursorOpacity;\n      ctx.fillRect(\n        boundaries.left + boundaries.leftOffset - cursorWidth / 2,\n        topOffset + boundaries.top + dy,\n        cursorWidth,\n        charHeight);\n    },\n\n    /**\n     * Renders text selection\n     * @param {Object} boundaries Object with left/top/leftOffset/topOffset\n     * @param {CanvasRenderingContext2D} ctx transformed context to draw on\n     */\n    renderSelection: function(boundaries, ctx) {\n\n      var selectionStart = this.inCompositionMode ? this.hiddenTextarea.selectionStart : this.selectionStart,\n          selectionEnd = this.inCompositionMode ? this.hiddenTextarea.selectionEnd : this.selectionEnd,\n          isJustify = this.textAlign.indexOf('justify') !== -1,\n          start = this.get2DCursorLocation(selectionStart),\n          end = this.get2DCursorLocation(selectionEnd),\n          startLine = start.lineIndex,\n          endLine = end.lineIndex,\n          startChar = start.charIndex < 0 ? 0 : start.charIndex,\n          endChar = end.charIndex < 0 ? 0 : end.charIndex;\n\n      for (var i = startLine; i <= endLine; i++) {\n        var lineOffset = this._getLineLeftOffset(i) || 0,\n            lineHeight = this.getHeightOfLine(i),\n            realLineHeight = 0, boxStart = 0, boxEnd = 0;\n\n        if (i === startLine) {\n          boxStart = this.__charBounds[startLine][startChar].left;\n        }\n        if (i >= startLine && i < endLine) {\n          boxEnd = isJustify && !this.isEndOfWrapping(i) ? this.width : this.getLineWidth(i) || 5; // WTF is this 5?\n        }\n        else if (i === endLine) {\n          if (endChar === 0) {\n            boxEnd = this.__charBounds[endLine][endChar].left;\n          }\n          else {\n            var charSpacing = this._getWidthOfCharSpacing();\n            boxEnd = this.__charBounds[endLine][endChar - 1].left\n              + this.__charBounds[endLine][endChar - 1].width - charSpacing;\n          }\n        }\n        realLineHeight = lineHeight;\n        if (this.lineHeight < 1 || (i === endLine && this.lineHeight > 1)) {\n          lineHeight /= this.lineHeight;\n        }\n        if (this.inCompositionMode) {\n          ctx.fillStyle = this.compositionColor || 'black';\n          ctx.fillRect(\n            boundaries.left + lineOffset + boxStart,\n            boundaries.top + boundaries.topOffset + lineHeight,\n            boxEnd - boxStart,\n            1);\n        }\n        else {\n          ctx.fillStyle = this.selectionColor;\n          ctx.fillRect(\n            boundaries.left + lineOffset + boxStart,\n            boundaries.top + boundaries.topOffset,\n            boxEnd - boxStart,\n            lineHeight);\n        }\n\n\n        boundaries.topOffset += realLineHeight;\n      }\n    },\n\n    /**\n     * High level function to know the height of the cursor.\n     * the currentChar is the one that precedes the cursor\n     * Returns fontSize of char at the current cursor\n     * @return {Number} Character font size\n     */\n    getCurrentCharFontSize: function() {\n      var cp = this._getCurrentCharIndex();\n      return this.getValueOfPropertyAt(cp.l, cp.c, 'fontSize');\n    },\n\n    /**\n     * High level function to know the color of the cursor.\n     * the currentChar is the one that precedes the cursor\n     * Returns color (fill) of char at the current cursor\n     * @return {String} Character color (fill)\n     */\n    getCurrentCharColor: function() {\n      var cp = this._getCurrentCharIndex();\n      return this.getValueOfPropertyAt(cp.l, cp.c, 'fill');\n    },\n\n    /**\n     * Returns the cursor position for the getCurrent.. functions\n     * @private\n     */\n    _getCurrentCharIndex: function() {\n      var cursorPosition = this.get2DCursorLocation(this.selectionStart, true),\n          charIndex = cursorPosition.charIndex > 0 ? cursorPosition.charIndex - 1 : 0;\n      return { l: cursorPosition.lineIndex, c: charIndex };\n    }\n  });\n\n  /**\n   * Returns fabric.IText instance from an object representation\n   * @static\n   * @memberOf fabric.IText\n   * @param {Object} object Object to create an instance from\n   * @param {function} [callback] invoked with new instance as argument\n   */\n  fabric.IText.fromObject = function(object, callback) {\n    parseDecoration(object);\n    if (object.styles) {\n      for (var i in object.styles) {\n        for (var j in object.styles[i]) {\n          parseDecoration(object.styles[i][j]);\n        }\n      }\n    }\n    fabric.Object._fromObject('IText', object, callback, 'text');\n  };\n})();\n\n\n(function() {\n\n  var clone = fabric.util.object.clone;\n\n  fabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.prototype */ {\n\n    /**\n     * Initializes all the interactive behavior of IText\n     */\n    initBehavior: function() {\n      this.initAddedHandler();\n      this.initRemovedHandler();\n      this.initCursorSelectionHandlers();\n      this.initDoubleClickSimulation();\n      this.mouseMoveHandler = this.mouseMoveHandler.bind(this);\n    },\n\n    onDeselect: function() {\n      this.isEditing && this.exitEditing();\n      this.selected = false;\n    },\n\n    /**\n     * Initializes \"added\" event handler\n     */\n    initAddedHandler: function() {\n      var _this = this;\n      this.on('added', function() {\n        var canvas = _this.canvas;\n        if (canvas) {\n          if (!canvas._hasITextHandlers) {\n            canvas._hasITextHandlers = true;\n            _this._initCanvasHandlers(canvas);\n          }\n          canvas._iTextInstances = canvas._iTextInstances || [];\n          canvas._iTextInstances.push(_this);\n        }\n      });\n    },\n\n    initRemovedHandler: function() {\n      var _this = this;\n      this.on('removed', function() {\n        var canvas = _this.canvas;\n        if (canvas) {\n          canvas._iTextInstances = canvas._iTextInstances || [];\n          fabric.util.removeFromArray(canvas._iTextInstances, _this);\n          if (canvas._iTextInstances.length === 0) {\n            canvas._hasITextHandlers = false;\n            _this._removeCanvasHandlers(canvas);\n          }\n        }\n      });\n    },\n\n    /**\n     * register canvas event to manage exiting on other instances\n     * @private\n     */\n    _initCanvasHandlers: function(canvas) {\n      canvas._mouseUpITextHandler = function() {\n        if (canvas._iTextInstances) {\n          canvas._iTextInstances.forEach(function(obj) {\n            obj.__isMousedown = false;\n          });\n        }\n      };\n      canvas.on('mouse:up', canvas._mouseUpITextHandler);\n    },\n\n    /**\n     * remove canvas event to manage exiting on other instances\n     * @private\n     */\n    _removeCanvasHandlers: function(canvas) {\n      canvas.off('mouse:up', canvas._mouseUpITextHandler);\n    },\n\n    /**\n     * @private\n     */\n    _tick: function() {\n      this._currentTickState = this._animateCursor(this, 1, this.cursorDuration, '_onTickComplete');\n    },\n\n    /**\n     * @private\n     */\n    _animateCursor: function(obj, targetOpacity, duration, completeMethod) {\n\n      var tickState;\n\n      tickState = {\n        isAborted: false,\n        abort: function() {\n          this.isAborted = true;\n        },\n      };\n\n      obj.animate('_currentCursorOpacity', targetOpacity, {\n        duration: duration,\n        onComplete: function() {\n          if (!tickState.isAborted) {\n            obj[completeMethod]();\n          }\n        },\n        onChange: function() {\n          // we do not want to animate a selection, only cursor\n          if (obj.canvas && obj.selectionStart === obj.selectionEnd) {\n            obj.renderCursorOrSelection();\n          }\n        },\n        abort: function() {\n          return tickState.isAborted;\n        }\n      });\n      return tickState;\n    },\n\n    /**\n     * @private\n     */\n    _onTickComplete: function() {\n\n      var _this = this;\n\n      if (this._cursorTimeout1) {\n        clearTimeout(this._cursorTimeout1);\n      }\n      this._cursorTimeout1 = setTimeout(function() {\n        _this._currentTickCompleteState = _this._animateCursor(_this, 0, this.cursorDuration / 2, '_tick');\n      }, 100);\n    },\n\n    /**\n     * Initializes delayed cursor\n     */\n    initDelayedCursor: function(restart) {\n      var _this = this,\n          delay = restart ? 0 : this.cursorDelay;\n\n      this.abortCursorAnimation();\n      this._currentCursorOpacity = 1;\n      this._cursorTimeout2 = setTimeout(function() {\n        _this._tick();\n      }, delay);\n    },\n\n    /**\n     * Aborts cursor animation and clears all timeouts\n     */\n    abortCursorAnimation: function() {\n      var shouldClear = this._currentTickState || this._currentTickCompleteState,\n          canvas = this.canvas;\n      this._currentTickState && this._currentTickState.abort();\n      this._currentTickCompleteState && this._currentTickCompleteState.abort();\n\n      clearTimeout(this._cursorTimeout1);\n      clearTimeout(this._cursorTimeout2);\n\n      this._currentCursorOpacity = 0;\n      // to clear just itext area we need to transform the context\n      // it may not be worth it\n      if (shouldClear && canvas) {\n        canvas.clearContext(canvas.contextTop || canvas.contextContainer);\n      }\n\n    },\n\n    /**\n     * Selects entire text\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    selectAll: function() {\n      this.selectionStart = 0;\n      this.selectionEnd = this._text.length;\n      this._fireSelectionChanged();\n      this._updateTextarea();\n      return this;\n    },\n\n    /**\n     * Returns selected text\n     * @return {String}\n     */\n    getSelectedText: function() {\n      return this._text.slice(this.selectionStart, this.selectionEnd).join('');\n    },\n\n    /**\n     * Find new selection index representing start of current word according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findWordBoundaryLeft: function(startFrom) {\n      var offset = 0, index = startFrom - 1;\n\n      // remove space before cursor first\n      if (this._reSpace.test(this._text[index])) {\n        while (this._reSpace.test(this._text[index])) {\n          offset++;\n          index--;\n        }\n      }\n      while (/\\S/.test(this._text[index]) && index > -1) {\n        offset++;\n        index--;\n      }\n\n      return startFrom - offset;\n    },\n\n    /**\n     * Find new selection index representing end of current word according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findWordBoundaryRight: function(startFrom) {\n      var offset = 0, index = startFrom;\n\n      // remove space after cursor first\n      if (this._reSpace.test(this._text[index])) {\n        while (this._reSpace.test(this._text[index])) {\n          offset++;\n          index++;\n        }\n      }\n      while (/\\S/.test(this._text[index]) && index < this._text.length) {\n        offset++;\n        index++;\n      }\n\n      return startFrom + offset;\n    },\n\n    /**\n     * Find new selection index representing start of current line according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findLineBoundaryLeft: function(startFrom) {\n      var offset = 0, index = startFrom - 1;\n\n      while (!/\\n/.test(this._text[index]) && index > -1) {\n        offset++;\n        index--;\n      }\n\n      return startFrom - offset;\n    },\n\n    /**\n     * Find new selection index representing end of current line according to current selection index\n     * @param {Number} startFrom Current selection index\n     * @return {Number} New selection index\n     */\n    findLineBoundaryRight: function(startFrom) {\n      var offset = 0, index = startFrom;\n\n      while (!/\\n/.test(this._text[index]) && index < this._text.length) {\n        offset++;\n        index++;\n      }\n\n      return startFrom + offset;\n    },\n\n    /**\n     * Finds index corresponding to beginning or end of a word\n     * @param {Number} selectionStart Index of a character\n     * @param {Number} direction 1 or -1\n     * @return {Number} Index of the beginning or end of a word\n     */\n    searchWordBoundary: function(selectionStart, direction) {\n      var text = this._text,\n          index     = this._reSpace.test(text[selectionStart]) ? selectionStart - 1 : selectionStart,\n          _char     = text[index],\n          // wrong\n          reNonWord = fabric.reNonWord;\n\n      while (!reNonWord.test(_char) && index > 0 && index < text.length) {\n        index += direction;\n        _char = text[index];\n      }\n      if (reNonWord.test(_char)) {\n        index += direction === 1 ? 0 : 1;\n      }\n      return index;\n    },\n\n    /**\n     * Selects a word based on the index\n     * @param {Number} selectionStart Index of a character\n     */\n    selectWord: function(selectionStart) {\n      selectionStart = selectionStart || this.selectionStart;\n      var newSelectionStart = this.searchWordBoundary(selectionStart, -1), /* search backwards */\n          newSelectionEnd = this.searchWordBoundary(selectionStart, 1); /* search forward */\n\n      this.selectionStart = newSelectionStart;\n      this.selectionEnd = newSelectionEnd;\n      this._fireSelectionChanged();\n      this._updateTextarea();\n      this.renderCursorOrSelection();\n    },\n\n    /**\n     * Selects a line based on the index\n     * @param {Number} selectionStart Index of a character\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    selectLine: function(selectionStart) {\n      selectionStart = selectionStart || this.selectionStart;\n      var newSelectionStart = this.findLineBoundaryLeft(selectionStart),\n          newSelectionEnd = this.findLineBoundaryRight(selectionStart);\n\n      this.selectionStart = newSelectionStart;\n      this.selectionEnd = newSelectionEnd;\n      this._fireSelectionChanged();\n      this._updateTextarea();\n      return this;\n    },\n\n    /**\n     * Enters editing state\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    enterEditing: function(e) {\n      if (this.isEditing || !this.editable) {\n        return;\n      }\n\n      if (this.canvas) {\n        this.canvas.calcOffset();\n        this.exitEditingOnOthers(this.canvas);\n      }\n\n      this.isEditing = true;\n\n      this.initHiddenTextarea(e);\n      this.hiddenTextarea.focus();\n      this.hiddenTextarea.value = this.text;\n      this._updateTextarea();\n      this._saveEditingProps();\n      this._setEditingProps();\n      this._textBeforeEdit = this.text;\n\n      this._tick();\n      this.fire('editing:entered');\n      this._fireSelectionChanged();\n      if (!this.canvas) {\n        return this;\n      }\n      this.canvas.fire('text:editing:entered', { target: this });\n      this.initMouseMoveHandler();\n      this.canvas.requestRenderAll();\n      return this;\n    },\n\n    exitEditingOnOthers: function(canvas) {\n      if (canvas._iTextInstances) {\n        canvas._iTextInstances.forEach(function(obj) {\n          obj.selected = false;\n          if (obj.isEditing) {\n            obj.exitEditing();\n          }\n        });\n      }\n    },\n\n    /**\n     * Initializes \"mousemove\" event handler\n     */\n    initMouseMoveHandler: function() {\n      this.canvas.on('mouse:move', this.mouseMoveHandler);\n    },\n\n    /**\n     * @private\n     */\n    mouseMoveHandler: function(options) {\n      if (!this.__isMousedown || !this.isEditing) {\n        return;\n      }\n\n      var newSelectionStart = this.getSelectionStartFromPointer(options.e),\n          currentStart = this.selectionStart,\n          currentEnd = this.selectionEnd;\n      if (\n        (newSelectionStart !== this.__selectionStartOnMouseDown || currentStart === currentEnd)\n        &&\n        (currentStart === newSelectionStart || currentEnd === newSelectionStart)\n      ) {\n        return;\n      }\n      if (newSelectionStart > this.__selectionStartOnMouseDown) {\n        this.selectionStart = this.__selectionStartOnMouseDown;\n        this.selectionEnd = newSelectionStart;\n      }\n      else {\n        this.selectionStart = newSelectionStart;\n        this.selectionEnd = this.__selectionStartOnMouseDown;\n      }\n      if (this.selectionStart !== currentStart || this.selectionEnd !== currentEnd) {\n        this.restartCursorIfNeeded();\n        this._fireSelectionChanged();\n        this._updateTextarea();\n        this.renderCursorOrSelection();\n      }\n    },\n\n    /**\n     * @private\n     */\n    _setEditingProps: function() {\n      this.hoverCursor = 'text';\n\n      if (this.canvas) {\n        this.canvas.defaultCursor = this.canvas.moveCursor = 'text';\n      }\n\n      this.borderColor = this.editingBorderColor;\n      this.hasControls = this.selectable = false;\n      this.lockMovementX = this.lockMovementY = true;\n    },\n\n    /**\n     * convert from textarea to grapheme indexes\n     */\n    fromStringToGraphemeSelection: function(start, end, text) {\n      var smallerTextStart = text.slice(0, start),\n          graphemeStart = fabric.util.string.graphemeSplit(smallerTextStart).length;\n      if (start === end) {\n        return { selectionStart: graphemeStart, selectionEnd: graphemeStart };\n      }\n      var smallerTextEnd = text.slice(start, end),\n          graphemeEnd = fabric.util.string.graphemeSplit(smallerTextEnd).length;\n      return { selectionStart: graphemeStart, selectionEnd: graphemeStart + graphemeEnd };\n    },\n\n    /**\n     * convert from fabric to textarea values\n     */\n    fromGraphemeToStringSelection: function(start, end, _text) {\n      var smallerTextStart = _text.slice(0, start),\n          graphemeStart = smallerTextStart.join('').length;\n      if (start === end) {\n        return { selectionStart: graphemeStart, selectionEnd: graphemeStart };\n      }\n      var smallerTextEnd = _text.slice(start, end),\n          graphemeEnd = smallerTextEnd.join('').length;\n      return { selectionStart: graphemeStart, selectionEnd: graphemeStart + graphemeEnd };\n    },\n\n    /**\n     * @private\n     */\n    _updateTextarea: function() {\n      this.cursorOffsetCache = { };\n      if (!this.hiddenTextarea) {\n        return;\n      }\n      if (!this.inCompositionMode) {\n        var newSelection = this.fromGraphemeToStringSelection(this.selectionStart, this.selectionEnd, this._text);\n        this.hiddenTextarea.selectionStart = newSelection.selectionStart;\n        this.hiddenTextarea.selectionEnd = newSelection.selectionEnd;\n      }\n      this.updateTextareaPosition();\n    },\n\n    /**\n     * @private\n     */\n    updateFromTextArea: function() {\n      if (!this.hiddenTextarea) {\n        return;\n      }\n      this.cursorOffsetCache = { };\n      this.text = this.hiddenTextarea.value;\n      if (this._shouldClearDimensionCache()) {\n        this.initDimensions();\n        this.setCoords();\n      }\n      var newSelection = this.fromStringToGraphemeSelection(\n        this.hiddenTextarea.selectionStart, this.hiddenTextarea.selectionEnd, this.hiddenTextarea.value);\n      this.selectionEnd = this.selectionStart = newSelection.selectionEnd;\n      if (!this.inCompositionMode) {\n        this.selectionStart = newSelection.selectionStart;\n      }\n      this.updateTextareaPosition();\n    },\n\n    /**\n     * @private\n     */\n    updateTextareaPosition: function() {\n      if (this.selectionStart === this.selectionEnd) {\n        var style = this._calcTextareaPosition();\n        this.hiddenTextarea.style.left = style.left;\n        this.hiddenTextarea.style.top = style.top;\n      }\n    },\n\n    /**\n     * @private\n     * @return {Object} style contains style for hiddenTextarea\n     */\n    _calcTextareaPosition: function() {\n      if (!this.canvas) {\n        return { x: 1, y: 1 };\n      }\n      var desiredPosition = this.inCompositionMode ? this.compositionStart : this.selectionStart,\n          boundaries = this._getCursorBoundaries(desiredPosition),\n          cursorLocation = this.get2DCursorLocation(desiredPosition),\n          lineIndex = cursorLocation.lineIndex,\n          charIndex = cursorLocation.charIndex,\n          charHeight = this.getValueOfPropertyAt(lineIndex, charIndex, 'fontSize') * this.lineHeight,\n          leftOffset = boundaries.leftOffset,\n          m = this.calcTransformMatrix(),\n          p = {\n            x: boundaries.left + leftOffset,\n            y: boundaries.top + boundaries.topOffset + charHeight\n          },\n          retinaScaling = this.canvas.getRetinaScaling(),\n          upperCanvas = this.canvas.upperCanvasEl,\n          upperCanvasWidth = upperCanvas.width / retinaScaling,\n          upperCanvasHeight = upperCanvas.height / retinaScaling,\n          maxWidth = upperCanvasWidth - charHeight,\n          maxHeight = upperCanvasHeight - charHeight,\n          scaleX = upperCanvas.clientWidth / upperCanvasWidth,\n          scaleY = upperCanvas.clientHeight / upperCanvasHeight;\n\n      p = fabric.util.transformPoint(p, m);\n      p = fabric.util.transformPoint(p, this.canvas.viewportTransform);\n      p.x *= scaleX;\n      p.y *= scaleY;\n      if (p.x < 0) {\n        p.x = 0;\n      }\n      if (p.x > maxWidth) {\n        p.x = maxWidth;\n      }\n      if (p.y < 0) {\n        p.y = 0;\n      }\n      if (p.y > maxHeight) {\n        p.y = maxHeight;\n      }\n\n      // add canvas offset on document\n      p.x += this.canvas._offset.left;\n      p.y += this.canvas._offset.top;\n\n      return { left: p.x + 'px', top: p.y + 'px', fontSize: charHeight + 'px', charHeight: charHeight };\n    },\n\n    /**\n     * @private\n     */\n    _saveEditingProps: function() {\n      this._savedProps = {\n        hasControls: this.hasControls,\n        borderColor: this.borderColor,\n        lockMovementX: this.lockMovementX,\n        lockMovementY: this.lockMovementY,\n        hoverCursor: this.hoverCursor,\n        selectable: this.selectable,\n        defaultCursor: this.canvas && this.canvas.defaultCursor,\n        moveCursor: this.canvas && this.canvas.moveCursor\n      };\n    },\n\n    /**\n     * @private\n     */\n    _restoreEditingProps: function() {\n      if (!this._savedProps) {\n        return;\n      }\n\n      this.hoverCursor = this._savedProps.hoverCursor;\n      this.hasControls = this._savedProps.hasControls;\n      this.borderColor = this._savedProps.borderColor;\n      this.selectable = this._savedProps.selectable;\n      this.lockMovementX = this._savedProps.lockMovementX;\n      this.lockMovementY = this._savedProps.lockMovementY;\n\n      if (this.canvas) {\n        this.canvas.defaultCursor = this._savedProps.defaultCursor;\n        this.canvas.moveCursor = this._savedProps.moveCursor;\n      }\n    },\n\n    /**\n     * Exits from editing state\n     * @return {fabric.IText} thisArg\n     * @chainable\n     */\n    exitEditing: function() {\n      var isTextChanged = (this._textBeforeEdit !== this.text);\n      var hiddenTextarea = this.hiddenTextarea;\n      this.selected = false;\n      this.isEditing = false;\n\n      this.selectionEnd = this.selectionStart;\n\n      if (hiddenTextarea) {\n        hiddenTextarea.blur && hiddenTextarea.blur();\n        hiddenTextarea.parentNode && hiddenTextarea.parentNode.removeChild(hiddenTextarea);\n      }\n      this.hiddenTextarea = null;\n      this.abortCursorAnimation();\n      this._restoreEditingProps();\n      this._currentCursorOpacity = 0;\n      if (this._shouldClearDimensionCache()) {\n        this.initDimensions();\n        this.setCoords();\n      }\n      this.fire('editing:exited');\n      isTextChanged && this.fire('modified');\n      if (this.canvas) {\n        this.canvas.off('mouse:move', this.mouseMoveHandler);\n        this.canvas.fire('text:editing:exited', { target: this });\n        isTextChanged && this.canvas.fire('object:modified', { target: this });\n      }\n      return this;\n    },\n\n    /**\n     * @private\n     */\n    _removeExtraneousStyles: function() {\n      for (var prop in this.styles) {\n        if (!this._textLines[prop]) {\n          delete this.styles[prop];\n        }\n      }\n    },\n\n    /**\n     * remove and reflow a style block from start to end.\n     * @param {Number} start linear start position for removal (included in removal)\n     * @param {Number} end linear end position for removal ( excluded from removal )\n     */\n    removeStyleFromTo: function(start, end) {\n      var cursorStart = this.get2DCursorLocation(start, true),\n          cursorEnd = this.get2DCursorLocation(end, true),\n          lineStart = cursorStart.lineIndex,\n          charStart = cursorStart.charIndex,\n          lineEnd = cursorEnd.lineIndex,\n          charEnd = cursorEnd.charIndex,\n          i, styleObj;\n      if (lineStart !== lineEnd) {\n        // step1 remove the trailing of lineStart\n        if (this.styles[lineStart]) {\n          for (i = charStart; i < this._unwrappedTextLines[lineStart].length; i++) {\n            delete this.styles[lineStart][i];\n          }\n        }\n        // step2 move the trailing of lineEnd to lineStart if needed\n        if (this.styles[lineEnd]) {\n          for (i = charEnd; i < this._unwrappedTextLines[lineEnd].length; i++) {\n            styleObj = this.styles[lineEnd][i];\n            if (styleObj) {\n              this.styles[lineStart] || (this.styles[lineStart] = { });\n              this.styles[lineStart][charStart + i - charEnd] = styleObj;\n            }\n          }\n        }\n        // step3 detects lines will be completely removed.\n        for (i = lineStart + 1; i <= lineEnd; i++) {\n          delete this.styles[i];\n        }\n        // step4 shift remaining lines.\n        this.shiftLineStyles(lineEnd, lineStart - lineEnd);\n      }\n      else {\n        // remove and shift left on the same line\n        if (this.styles[lineStart]) {\n          styleObj = this.styles[lineStart];\n          var diff = charEnd - charStart, numericChar, _char;\n          for (i = charStart; i < charEnd; i++) {\n            delete styleObj[i];\n          }\n          for (_char in this.styles[lineStart]) {\n            numericChar = parseInt(_char, 10);\n            if (numericChar >= charEnd) {\n              styleObj[numericChar - diff] = styleObj[_char];\n              delete styleObj[_char];\n            }\n          }\n        }\n      }\n    },\n\n    /**\n     * Shifts line styles up or down\n     * @param {Number} lineIndex Index of a line\n     * @param {Number} offset Can any number?\n     */\n    shiftLineStyles: function(lineIndex, offset) {\n      // shift all line styles by offset upward or downward\n      // do not clone deep. we need new array, not new style objects\n      var clonedStyles = clone(this.styles);\n      for (var line in this.styles) {\n        var numericLine = parseInt(line, 10);\n        if (numericLine > lineIndex) {\n          this.styles[numericLine + offset] = clonedStyles[numericLine];\n          if (!clonedStyles[numericLine - offset]) {\n            delete this.styles[numericLine];\n          }\n        }\n      }\n    },\n\n    restartCursorIfNeeded: function() {\n      if (!this._currentTickState || this._currentTickState.isAborted\n        || !this._currentTickCompleteState || this._currentTickCompleteState.isAborted\n      ) {\n        this.initDelayedCursor();\n      }\n    },\n\n    /**\n     * Inserts new style object\n     * @param {Number} lineIndex Index of a line\n     * @param {Number} charIndex Index of a char\n     * @param {Number} qty number of lines to add\n     * @param {Array} copiedStyle Array of objects styles\n     */\n    insertNewlineStyleObject: function(lineIndex, charIndex, qty, copiedStyle) {\n      var currentCharStyle,\n          newLineStyles = {},\n          somethingAdded = false;\n\n      qty || (qty = 1);\n      this.shiftLineStyles(lineIndex, qty);\n      if (this.styles[lineIndex]) {\n        currentCharStyle = this.styles[lineIndex][charIndex === 0 ? charIndex : charIndex - 1];\n      }\n\n      // we clone styles of all chars\n      // after cursor onto the current line\n      for (var index in this.styles[lineIndex]) {\n        var numIndex = parseInt(index, 10);\n        if (numIndex >= charIndex) {\n          somethingAdded = true;\n          newLineStyles[numIndex - charIndex] = this.styles[lineIndex][index];\n          // remove lines from the previous line since they're on a new line now\n          delete this.styles[lineIndex][index];\n        }\n      }\n      if (somethingAdded) {\n        this.styles[lineIndex + qty] = newLineStyles;\n      }\n      else {\n        delete this.styles[lineIndex + qty];\n      }\n      // for the other lines\n      // we clone current char style onto the next (otherwise empty) line\n      while (qty > 1) {\n        qty--;\n        if (copiedStyle && copiedStyle[qty]) {\n          this.styles[lineIndex + qty] = { 0: clone(copiedStyle[qty]) };\n        }\n        else if (currentCharStyle) {\n          this.styles[lineIndex + qty] = { 0: clone(currentCharStyle) };\n        }\n        else {\n          delete this.styles[lineIndex + qty];\n        }\n      }\n      this._forceClearCache = true;\n    },\n\n    /**\n     * Inserts style object for a given line/char index\n     * @param {Number} lineIndex Index of a line\n     * @param {Number} charIndex Index of a char\n     * @param {Number} quantity number Style object to insert, if given\n     * @param {Array} copiedStyle array of style objects\n     */\n    insertCharStyleObject: function(lineIndex, charIndex, quantity, copiedStyle) {\n      if (!this.styles) {\n        this.styles = {};\n      }\n      var currentLineStyles       = this.styles[lineIndex],\n          currentLineStylesCloned = currentLineStyles ? clone(currentLineStyles) : {};\n\n      quantity || (quantity = 1);\n      // shift all char styles by quantity forward\n      // 0,1,2,3 -> (charIndex=2) -> 0,1,3,4 -> (insert 2) -> 0,1,2,3,4\n      for (var index in currentLineStylesCloned) {\n        var numericIndex = parseInt(index, 10);\n        if (numericIndex >= charIndex) {\n          currentLineStyles[numericIndex + quantity] = currentLineStylesCloned[numericIndex];\n          // only delete the style if there was nothing moved there\n          if (!currentLineStylesCloned[numericIndex - quantity]) {\n            delete currentLineStyles[numericIndex];\n          }\n        }\n      }\n      this._forceClearCache = true;\n      if (copiedStyle) {\n        while (quantity--) {\n          if (!Object.keys(copiedStyle[quantity]).length) {\n            continue;\n          }\n          if (!this.styles[lineIndex]) {\n            this.styles[lineIndex] = {};\n          }\n          this.styles[lineIndex][charIndex + quantity] = clone(copiedStyle[quantity]);\n        }\n        return;\n      }\n      if (!currentLineStyles) {\n        return;\n      }\n      var newStyle = currentLineStyles[charIndex ? charIndex - 1 : 1];\n      while (newStyle && quantity--) {\n        this.styles[lineIndex][charIndex + quantity] = clone(newStyle);\n      }\n    },\n\n    /**\n     * Inserts style object(s)\n     * @param {Array} insertedText Characters at the location where style is inserted\n     * @param {Number} start cursor index for inserting style\n     * @param {Array} [copiedStyle] array of style objects to insert.\n     */\n    insertNewStyleBlock: function(insertedText, start, copiedStyle) {\n      var cursorLoc = this.get2DCursorLocation(start, true),\n          addedLines = [0], linesLength = 0;\n      for (var i = 0; i < insertedText.length; i++) {\n        if (insertedText[i] === '\\n') {\n          linesLength++;\n          addedLines[linesLength] = 0;\n        }\n        else {\n          addedLines[linesLength]++;\n        }\n      }\n      if (addedLines[0] > 0) {\n        this.insertCharStyleObject(cursorLoc.lineIndex, cursorLoc.charIndex, addedLines[0], copiedStyle);\n        copiedStyle = copiedStyle && copiedStyle.slice(addedLines[0] + 1);\n      }\n      linesLength && this.insertNewlineStyleObject(\n        cursorLoc.lineIndex, cursorLoc.charIndex + addedLines[0], linesLength);\n      for (var i = 1; i < linesLength; i++) {\n        if (addedLines[i] > 0) {\n          this.insertCharStyleObject(cursorLoc.lineIndex + i, 0, addedLines[i], copiedStyle);\n        }\n        else if (copiedStyle) {\n          this.styles[cursorLoc.lineIndex + i][0] = copiedStyle[0];\n        }\n        copiedStyle = copiedStyle && copiedStyle.slice(addedLines[i] + 1);\n      }\n      // we use i outside the loop to get it like linesLength\n      if (addedLines[i] > 0) {\n        this.insertCharStyleObject(cursorLoc.lineIndex + i, 0, addedLines[i], copiedStyle);\n      }\n    },\n\n    /**\n     * Set the selectionStart and selectionEnd according to the new position of cursor\n     * mimic the key - mouse navigation when shift is pressed.\n     */\n    setSelectionStartEndWithShift: function(start, end, newSelection) {\n      if (newSelection <= start) {\n        if (end === start) {\n          this._selectionDirection = 'left';\n        }\n        else if (this._selectionDirection === 'right') {\n          this._selectionDirection = 'left';\n          this.selectionEnd = start;\n        }\n        this.selectionStart = newSelection;\n      }\n      else if (newSelection > start && newSelection < end) {\n        if (this._selectionDirection === 'right') {\n          this.selectionEnd = newSelection;\n        }\n        else {\n          this.selectionStart = newSelection;\n        }\n      }\n      else {\n        // newSelection is > selection start and end\n        if (end === start) {\n          this._selectionDirection = 'right';\n        }\n        else if (this._selectionDirection === 'left') {\n          this._selectionDirection = 'right';\n          this.selectionStart = end;\n        }\n        this.selectionEnd = newSelection;\n      }\n    },\n\n    setSelectionInBoundaries: function() {\n      var length = this.text.length;\n      if (this.selectionStart > length) {\n        this.selectionStart = length;\n      }\n      else if (this.selectionStart < 0) {\n        this.selectionStart = 0;\n      }\n      if (this.selectionEnd > length) {\n        this.selectionEnd = length;\n      }\n      else if (this.selectionEnd < 0) {\n        this.selectionEnd = 0;\n      }\n    }\n  });\n})();\n\n\nfabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.prototype */ {\n  /**\n   * Initializes \"dbclick\" event handler\n   */\n  initDoubleClickSimulation: function() {\n\n    // for double click\n    this.__lastClickTime = +new Date();\n\n    // for triple click\n    this.__lastLastClickTime = +new Date();\n\n    this.__lastPointer = { };\n\n    this.on('mousedown', this.onMouseDown);\n  },\n\n  /**\n   * Default event handler to simulate triple click\n   * @private\n   */\n  onMouseDown: function(options) {\n    if (!this.canvas) {\n      return;\n    }\n    this.__newClickTime = +new Date();\n    var newPointer = options.pointer;\n    if (this.isTripleClick(newPointer)) {\n      this.fire('tripleclick', options);\n      this._stopEvent(options.e);\n    }\n    this.__lastLastClickTime = this.__lastClickTime;\n    this.__lastClickTime = this.__newClickTime;\n    this.__lastPointer = newPointer;\n    this.__lastIsEditing = this.isEditing;\n    this.__lastSelected = this.selected;\n  },\n\n  isTripleClick: function(newPointer) {\n    return this.__newClickTime - this.__lastClickTime < 500 &&\n        this.__lastClickTime - this.__lastLastClickTime < 500 &&\n        this.__lastPointer.x === newPointer.x &&\n        this.__lastPointer.y === newPointer.y;\n  },\n\n  /**\n   * @private\n   */\n  _stopEvent: function(e) {\n    e.preventDefault && e.preventDefault();\n    e.stopPropagation && e.stopPropagation();\n  },\n\n  /**\n   * Initializes event handlers related to cursor or selection\n   */\n  initCursorSelectionHandlers: function() {\n    this.initMousedownHandler();\n    this.initMouseupHandler();\n    this.initClicks();\n  },\n\n  /**\n   * Default handler for double click, select a word\n   */\n  doubleClickHandler: function(options) {\n    if (!this.isEditing) {\n      return;\n    }\n    this.selectWord(this.getSelectionStartFromPointer(options.e));\n  },\n\n  /**\n   * Default handler for triple click, select a line\n   */\n  tripleClickHandler: function(options) {\n    if (!this.isEditing) {\n      return;\n    }\n    this.selectLine(this.getSelectionStartFromPointer(options.e));\n  },\n\n  /**\n   * Initializes double and triple click event handlers\n   */\n  initClicks: function() {\n    this.on('mousedblclick', this.doubleClickHandler);\n    this.on('tripleclick', this.tripleClickHandler);\n  },\n\n  /**\n   * Default event handler for the basic functionalities needed on _mouseDown\n   * can be overridden to do something different.\n   * Scope of this implementation is: find the click position, set selectionStart\n   * find selectionEnd, initialize the drawing of either cursor or selection area\n   */\n  _mouseDownHandler: function(options) {\n    if (!this.canvas || !this.editable || (options.e.button && options.e.button !== 1)) {\n      return;\n    }\n\n    this.__isMousedown = true;\n\n    if (this.selected) {\n      this.setCursorByClick(options.e);\n    }\n\n    if (this.isEditing) {\n      this.__selectionStartOnMouseDown = this.selectionStart;\n      if (this.selectionStart === this.selectionEnd) {\n        this.abortCursorAnimation();\n      }\n      this.renderCursorOrSelection();\n    }\n  },\n\n  /**\n   * Default event handler for the basic functionalities needed on mousedown:before\n   * can be overridden to do something different.\n   * Scope of this implementation is: verify the object is already selected when mousing down\n   */\n  _mouseDownHandlerBefore: function(options) {\n    if (!this.canvas || !this.editable || (options.e.button && options.e.button !== 1)) {\n      return;\n    }\n    // we want to avoid that an object that was selected and then becomes unselectable,\n    // may trigger editing mode in some way.\n    this.selected = this === this.canvas._activeObject;\n  },\n\n  /**\n   * Initializes \"mousedown\" event handler\n   */\n  initMousedownHandler: function() {\n    this.on('mousedown', this._mouseDownHandler);\n    this.on('mousedown:before', this._mouseDownHandlerBefore);\n  },\n\n  /**\n   * Initializes \"mouseup\" event handler\n   */\n  initMouseupHandler: function() {\n    this.on('mouseup', this.mouseUpHandler);\n  },\n\n  /**\n   * standard hander for mouse up, overridable\n   * @private\n   */\n  mouseUpHandler: function(options) {\n    this.__isMousedown = false;\n    if (!this.editable || this.group ||\n      (options.transform && options.transform.actionPerformed) ||\n      (options.e.button && options.e.button !== 1)) {\n      return;\n    }\n\n    if (this.canvas) {\n      var currentActive = this.canvas._activeObject;\n      if (currentActive && currentActive !== this) {\n        // avoid running this logic when there is an active object\n        // this because is possible with shift click and fast clicks,\n        // to rapidly deselect and reselect this object and trigger an enterEdit\n        return;\n      }\n    }\n\n    if (this.__lastSelected && !this.__corner) {\n      this.selected = false;\n      this.__lastSelected = false;\n      this.enterEditing(options.e);\n      if (this.selectionStart === this.selectionEnd) {\n        this.initDelayedCursor(true);\n      }\n      else {\n        this.renderCursorOrSelection();\n      }\n    }\n    else {\n      this.selected = true;\n    }\n  },\n\n  /**\n   * Changes cursor location in a text depending on passed pointer (x/y) object\n   * @param {Event} e Event object\n   */\n  setCursorByClick: function(e) {\n    var newSelection = this.getSelectionStartFromPointer(e),\n        start = this.selectionStart, end = this.selectionEnd;\n    if (e.shiftKey) {\n      this.setSelectionStartEndWithShift(start, end, newSelection);\n    }\n    else {\n      this.selectionStart = newSelection;\n      this.selectionEnd = newSelection;\n    }\n    if (this.isEditing) {\n      this._fireSelectionChanged();\n      this._updateTextarea();\n    }\n  },\n\n  /**\n   * Returns index of a character corresponding to where an object was clicked\n   * @param {Event} e Event object\n   * @return {Number} Index of a character\n   */\n  getSelectionStartFromPointer: function(e) {\n    var mouseOffset = this.getLocalPointer(e),\n        prevWidth = 0,\n        width = 0,\n        height = 0,\n        charIndex = 0,\n        lineIndex = 0,\n        lineLeftOffset,\n        line;\n\n    for (var i = 0, len = this._textLines.length; i < len; i++) {\n      if (height <= mouseOffset.y) {\n        height += this.getHeightOfLine(i) * this.scaleY;\n        lineIndex = i;\n        if (i > 0) {\n          charIndex += this._textLines[i - 1].length + this.missingNewlineOffset(i - 1);\n        }\n      }\n      else {\n        break;\n      }\n    }\n    lineLeftOffset = this._getLineLeftOffset(lineIndex);\n    width = lineLeftOffset * this.scaleX;\n    line = this._textLines[lineIndex];\n    for (var j = 0, jlen = line.length; j < jlen; j++) {\n      prevWidth = width;\n      // i removed something about flipX here, check.\n      width += this.__charBounds[lineIndex][j].kernedWidth * this.scaleX;\n      if (width <= mouseOffset.x) {\n        charIndex++;\n      }\n      else {\n        break;\n      }\n    }\n    return this._getNewSelectionStartFromOffset(mouseOffset, prevWidth, width, charIndex, jlen);\n  },\n\n  /**\n   * @private\n   */\n  _getNewSelectionStartFromOffset: function(mouseOffset, prevWidth, width, index, jlen) {\n    // we need Math.abs because when width is after the last char, the offset is given as 1, while is 0\n    var distanceBtwLastCharAndCursor = mouseOffset.x - prevWidth,\n        distanceBtwNextCharAndCursor = width - mouseOffset.x,\n        offset = distanceBtwNextCharAndCursor > distanceBtwLastCharAndCursor ||\n          distanceBtwNextCharAndCursor < 0 ? 0 : 1,\n        newSelectionStart = index + offset;\n    // if object is horizontally flipped, mirror cursor location from the end\n    if (this.flipX) {\n      newSelectionStart = jlen - newSelectionStart;\n    }\n\n    if (newSelectionStart > this._text.length) {\n      newSelectionStart = this._text.length;\n    }\n\n    return newSelectionStart;\n  }\n});\n\n\nfabric.util.object.extend(fabric.IText.prototype, /** @lends fabric.IText.prototype */ {\n\n  /**\n   * Initializes hidden textarea (needed to bring up keyboard in iOS)\n   */\n  initHiddenTextarea: function() {\n    this.hiddenTextarea = fabric.document.createElement('textarea');\n    this.hiddenTextarea.setAttribute('autocapitalize', 'off');\n    this.hiddenTextarea.setAttribute('autocorrect', 'off');\n    this.hiddenTextarea.setAttribute('autocomplete', 'off');\n    this.hiddenTextarea.setAttribute('spellcheck', 'false');\n    this.hiddenTextarea.setAttribute('data-fabric-hiddentextarea', '');\n    this.hiddenTextarea.setAttribute('wrap', 'off');\n    var style = this._calcTextareaPosition();\n    // line-height: 1px; was removed from the style to fix this:\n    // https://bugs.chromium.org/p/chromium/issues/detail?id=870966\n    this.hiddenTextarea.style.cssText = 'position: absolute; top: ' + style.top +\n    '; left: ' + style.left + '; z-index: -999; opacity: 0; width: 1px; height: 1px; font-size: 1px;' +\n    ' paddingｰtop: ' + style.fontSize + ';';\n    fabric.document.body.appendChild(this.hiddenTextarea);\n\n    fabric.util.addListener(this.hiddenTextarea, 'keydown', this.onKeyDown.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'keyup', this.onKeyUp.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'input', this.onInput.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'copy', this.copy.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'cut', this.copy.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'paste', this.paste.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'compositionstart', this.onCompositionStart.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'compositionupdate', this.onCompositionUpdate.bind(this));\n    fabric.util.addListener(this.hiddenTextarea, 'compositionend', this.onCompositionEnd.bind(this));\n\n    if (!this._clickHandlerInitialized && this.canvas) {\n      fabric.util.addListener(this.canvas.upperCanvasEl, 'click', this.onClick.bind(this));\n      this._clickHandlerInitialized = true;\n    }\n  },\n\n  /**\n   * For functionalities on keyDown\n   * Map a special key to a function of the instance/prototype\n   * If you need different behaviour for ESC or TAB or arrows, you have to change\n   * this map setting the name of a function that you build on the fabric.Itext or\n   * your prototype.\n   * the map change will affect all Instances unless you need for only some text Instances\n   * in that case you have to clone this object and assign your Instance.\n   * this.keysMap = fabric.util.object.clone(this.keysMap);\n   * The function must be in fabric.Itext.prototype.myFunction And will receive event as args[0]\n   */\n  keysMap: {\n    9:  'exitEditing',\n    27: 'exitEditing',\n    33: 'moveCursorUp',\n    34: 'moveCursorDown',\n    35: 'moveCursorRight',\n    36: 'moveCursorLeft',\n    37: 'moveCursorLeft',\n    38: 'moveCursorUp',\n    39: 'moveCursorRight',\n    40: 'moveCursorDown',\n  },\n\n  /**\n   * For functionalities on keyUp + ctrl || cmd\n   */\n  ctrlKeysMapUp: {\n    67: 'copy',\n    88: 'cut'\n  },\n\n  /**\n   * For functionalities on keyDown + ctrl || cmd\n   */\n  ctrlKeysMapDown: {\n    65: 'selectAll'\n  },\n\n  onClick: function() {\n    // No need to trigger click event here, focus is enough to have the keyboard appear on Android\n    this.hiddenTextarea && this.hiddenTextarea.focus();\n  },\n\n  /**\n   * Handles keyup event\n   * @param {Event} e Event object\n   */\n  onKeyDown: function(e) {\n    if (!this.isEditing || this.inCompositionMode) {\n      return;\n    }\n    if (e.keyCode in this.keysMap) {\n      this[this.keysMap[e.keyCode]](e);\n    }\n    else if ((e.keyCode in this.ctrlKeysMapDown) && (e.ctrlKey || e.metaKey)) {\n      this[this.ctrlKeysMapDown[e.keyCode]](e);\n    }\n    else {\n      return;\n    }\n    e.stopImmediatePropagation();\n    e.preventDefault();\n    if (e.keyCode >= 33 && e.keyCode <= 40) {\n      // if i press an arrow key just update selection\n      this.clearContextTop();\n      this.renderCursorOrSelection();\n    }\n    else {\n      this.canvas && this.canvas.requestRenderAll();\n    }\n  },\n\n  /**\n   * Handles keyup event\n   * We handle KeyUp because ie11 and edge have difficulties copy/pasting\n   * if a copy/cut event fired, keyup is dismissed\n   * @param {Event} e Event object\n   */\n  onKeyUp: function(e) {\n    if (!this.isEditing || this._copyDone || this.inCompositionMode) {\n      this._copyDone = false;\n      return;\n    }\n    if ((e.keyCode in this.ctrlKeysMapUp) && (e.ctrlKey || e.metaKey)) {\n      this[this.ctrlKeysMapUp[e.keyCode]](e);\n    }\n    else {\n      return;\n    }\n    e.stopImmediatePropagation();\n    e.preventDefault();\n    this.canvas && this.canvas.requestRenderAll();\n  },\n\n  /**\n   * Handles onInput event\n   * @param {Event} e Event object\n   */\n  onInput: function(e) {\n    var fromPaste = this.fromPaste;\n    this.fromPaste = false;\n    e && e.stopPropagation();\n    if (!this.isEditing) {\n      return;\n    }\n    // decisions about style changes.\n    var nextText = this._splitTextIntoLines(this.hiddenTextarea.value).graphemeText,\n        charCount = this._text.length,\n        nextCharCount = nextText.length,\n        removedText, insertedText,\n        charDiff = nextCharCount - charCount;\n    if (this.hiddenTextarea.value === '') {\n      this.styles = { };\n      this.updateFromTextArea();\n      this.fire('changed');\n      if (this.canvas) {\n        this.canvas.fire('text:changed', { target: this });\n        this.canvas.requestRenderAll();\n      }\n      return;\n    }\n\n    var textareaSelection = this.fromStringToGraphemeSelection(\n      this.hiddenTextarea.selectionStart,\n      this.hiddenTextarea.selectionEnd,\n      this.hiddenTextarea.value\n    );\n    var backDelete = this.selectionStart > textareaSelection.selectionStart;\n\n    if (this.selectionStart !== this.selectionEnd) {\n      removedText = this._text.slice(this.selectionStart, this.selectionEnd);\n      charDiff += this.selectionEnd - this.selectionStart;\n    }\n    else if (nextCharCount < charCount) {\n      if (backDelete) {\n        removedText = this._text.slice(this.selectionEnd + charDiff, this.selectionEnd);\n      }\n      else {\n        removedText = this._text.slice(this.selectionStart, this.selectionStart - charDiff);\n      }\n    }\n    insertedText = nextText.slice(textareaSelection.selectionEnd - charDiff, textareaSelection.selectionEnd);\n    if (removedText && removedText.length) {\n      if (this.selectionStart !== this.selectionEnd) {\n        this.removeStyleFromTo(this.selectionStart, this.selectionEnd);\n      }\n      else if (backDelete) {\n        // detect differencies between forwardDelete and backDelete\n        this.removeStyleFromTo(this.selectionEnd - removedText.length, this.selectionEnd);\n      }\n      else {\n        this.removeStyleFromTo(this.selectionEnd, this.selectionEnd + removedText.length);\n      }\n    }\n    if (insertedText.length) {\n      if (fromPaste && insertedText.join('') === fabric.copiedText && !fabric.disableStyleCopyPaste) {\n        this.insertNewStyleBlock(insertedText, this.selectionStart, fabric.copiedTextStyle);\n      }\n      else {\n        this.insertNewStyleBlock(insertedText, this.selectionStart);\n      }\n    }\n    this.updateFromTextArea();\n    this.fire('changed');\n    if (this.canvas) {\n      this.canvas.fire('text:changed', { target: this });\n      this.canvas.requestRenderAll();\n    }\n  },\n  /**\n   * Composition start\n   */\n  onCompositionStart: function() {\n    this.inCompositionMode = true;\n  },\n\n  /**\n   * Composition end\n   */\n  onCompositionEnd: function() {\n    this.inCompositionMode = false;\n  },\n\n  // /**\n  //  * Composition update\n  //  */\n  onCompositionUpdate: function(e) {\n    this.compositionStart = e.target.selectionStart;\n    this.compositionEnd = e.target.selectionEnd;\n    this.updateTextareaPosition();\n  },\n\n  /**\n   * Copies selected text\n   * @param {Event} e Event object\n   */\n  copy: function() {\n    if (this.selectionStart === this.selectionEnd) {\n      //do not cut-copy if no selection\n      return;\n    }\n\n    fabric.copiedText = this.getSelectedText();\n    if (!fabric.disableStyleCopyPaste) {\n      fabric.copiedTextStyle = this.getSelectionStyles(this.selectionStart, this.selectionEnd, true);\n    }\n    else {\n      fabric.copiedTextStyle = null;\n    }\n    this._copyDone = true;\n  },\n\n  /**\n   * Pastes text\n   * @param {Event} e Event object\n   */\n  paste: function() {\n    this.fromPaste = true;\n  },\n\n  /**\n   * @private\n   * @param {Event} e Event object\n   * @return {Object} Clipboard data object\n   */\n  _getClipboardData: function(e) {\n    return (e && e.clipboardData) || fabric.window.clipboardData;\n  },\n\n  /**\n   * Finds the width in pixels before the cursor on the same line\n   * @private\n   * @param {Number} lineIndex\n   * @param {Number} charIndex\n   * @return {Number} widthBeforeCursor width before cursor\n   */\n  _getWidthBeforeCursor: function(lineIndex, charIndex) {\n    var widthBeforeCursor = this._getLineLeftOffset(lineIndex), bound;\n\n    if (charIndex > 0) {\n      bound = this.__charBounds[lineIndex][charIndex - 1];\n      widthBeforeCursor += bound.left + bound.width;\n    }\n    return widthBeforeCursor;\n  },\n\n  /**\n   * Gets start offset of a selection\n   * @param {Event} e Event object\n   * @param {Boolean} isRight\n   * @return {Number}\n   */\n  getDownCursorOffset: function(e, isRight) {\n    var selectionProp = this._getSelectionForOffset(e, isRight),\n        cursorLocation = this.get2DCursorLocation(selectionProp),\n        lineIndex = cursorLocation.lineIndex;\n    // if on last line, down cursor goes to end of line\n    if (lineIndex === this._textLines.length - 1 || e.metaKey || e.keyCode === 34) {\n      // move to the end of a text\n      return this._text.length - selectionProp;\n    }\n    var charIndex = cursorLocation.charIndex,\n        widthBeforeCursor = this._getWidthBeforeCursor(lineIndex, charIndex),\n        indexOnOtherLine = this._getIndexOnLine(lineIndex + 1, widthBeforeCursor),\n        textAfterCursor = this._textLines[lineIndex].slice(charIndex);\n    return textAfterCursor.length + indexOnOtherLine + 1 + this.missingNewlineOffset(lineIndex);\n  },\n\n  /**\n   * private\n   * Helps finding if the offset should be counted from Start or End\n   * @param {Event} e Event object\n   * @param {Boolean} isRight\n   * @return {Number}\n   */\n  _getSelectionForOffset: function(e, isRight) {\n    if (e.shiftKey && this.selectionStart !== this.selectionEnd && isRight) {\n      return this.selectionEnd;\n    }\n    else {\n      return this.selectionStart;\n    }\n  },\n\n  /**\n   * @param {Event} e Event object\n   * @param {Boolean} isRight\n   * @return {Number}\n   */\n  getUpCursorOffset: function(e, isRight) {\n    var selectionProp = this._getSelectionForOffset(e, isRight),\n        cursorLocation = this.get2DCursorLocation(selectionProp),\n        lineIndex = cursorLocation.lineIndex;\n    if (lineIndex === 0 || e.metaKey || e.keyCode === 33) {\n      // if on first line, up cursor goes to start of line\n      return -selectionProp;\n    }\n    var charIndex = cursorLocation.charIndex,\n        widthBeforeCursor = this._getWidthBeforeCursor(lineIndex, charIndex),\n        indexOnOtherLine = this._getIndexOnLine(lineIndex - 1, widthBeforeCursor),\n        textBeforeCursor = this._textLines[lineIndex].slice(0, charIndex),\n        missingNewlineOffset = this.missingNewlineOffset(lineIndex - 1);\n    // return a negative offset\n    return -this._textLines[lineIndex - 1].length\n     + indexOnOtherLine - textBeforeCursor.length + (1 - missingNewlineOffset);\n  },\n\n  /**\n   * for a given width it founds the matching character.\n   * @private\n   */\n  _getIndexOnLine: function(lineIndex, width) {\n\n    var line = this._textLines[lineIndex],\n        lineLeftOffset = this._getLineLeftOffset(lineIndex),\n        widthOfCharsOnLine = lineLeftOffset,\n        indexOnLine = 0, charWidth, foundMatch;\n\n    for (var j = 0, jlen = line.length; j < jlen; j++) {\n      charWidth = this.__charBounds[lineIndex][j].width;\n      widthOfCharsOnLine += charWidth;\n      if (widthOfCharsOnLine > width) {\n        foundMatch = true;\n        var leftEdge = widthOfCharsOnLine - charWidth,\n            rightEdge = widthOfCharsOnLine,\n            offsetFromLeftEdge = Math.abs(leftEdge - width),\n            offsetFromRightEdge = Math.abs(rightEdge - width);\n\n        indexOnLine = offsetFromRightEdge < offsetFromLeftEdge ? j : (j - 1);\n        break;\n      }\n    }\n\n    // reached end\n    if (!foundMatch) {\n      indexOnLine = line.length - 1;\n    }\n\n    return indexOnLine;\n  },\n\n\n  /**\n   * Moves cursor down\n   * @param {Event} e Event object\n   */\n  moveCursorDown: function(e) {\n    if (this.selectionStart >= this._text.length && this.selectionEnd >= this._text.length) {\n      return;\n    }\n    this._moveCursorUpOrDown('Down', e);\n  },\n\n  /**\n   * Moves cursor up\n   * @param {Event} e Event object\n   */\n  moveCursorUp: function(e) {\n    if (this.selectionStart === 0 && this.selectionEnd === 0) {\n      return;\n    }\n    this._moveCursorUpOrDown('Up', e);\n  },\n\n  /**\n   * Moves cursor up or down, fires the events\n   * @param {String} direction 'Up' or 'Down'\n   * @param {Event} e Event object\n   */\n  _moveCursorUpOrDown: function(direction, e) {\n    // getUpCursorOffset\n    // getDownCursorOffset\n    var action = 'get' + direction + 'CursorOffset',\n        offset = this[action](e, this._selectionDirection === 'right');\n    if (e.shiftKey) {\n      this.moveCursorWithShift(offset);\n    }\n    else {\n      this.moveCursorWithoutShift(offset);\n    }\n    if (offset !== 0) {\n      this.setSelectionInBoundaries();\n      this.abortCursorAnimation();\n      this._currentCursorOpacity = 1;\n      this.initDelayedCursor();\n      this._fireSelectionChanged();\n      this._updateTextarea();\n    }\n  },\n\n  /**\n   * Moves cursor with shift\n   * @param {Number} offset\n   */\n  moveCursorWithShift: function(offset) {\n    var newSelection = this._selectionDirection === 'left'\n      ? this.selectionStart + offset\n      : this.selectionEnd + offset;\n    this.setSelectionStartEndWithShift(this.selectionStart, this.selectionEnd, newSelection);\n    return offset !== 0;\n  },\n\n  /**\n   * Moves cursor up without shift\n   * @param {Number} offset\n   */\n  moveCursorWithoutShift: function(offset) {\n    if (offset < 0) {\n      this.selectionStart += offset;\n      this.selectionEnd = this.selectionStart;\n    }\n    else {\n      this.selectionEnd += offset;\n      this.selectionStart = this.selectionEnd;\n    }\n    return offset !== 0;\n  },\n\n  /**\n   * Moves cursor left\n   * @param {Event} e Event object\n   */\n  moveCursorLeft: function(e) {\n    if (this.selectionStart === 0 && this.selectionEnd === 0) {\n      return;\n    }\n    this._moveCursorLeftOrRight('Left', e);\n  },\n\n  /**\n   * @private\n   * @return {Boolean} true if a change happened\n   */\n  _move: function(e, prop, direction) {\n    var newValue;\n    if (e.altKey) {\n      newValue = this['findWordBoundary' + direction](this[prop]);\n    }\n    else if (e.metaKey || e.keyCode === 35 ||  e.keyCode === 36 ) {\n      newValue = this['findLineBoundary' + direction](this[prop]);\n    }\n    else {\n      this[prop] += direction === 'Left' ? -1 : 1;\n      return true;\n    }\n    if (typeof newValue !== undefined && this[prop] !== newValue) {\n      this[prop] = newValue;\n      return true;\n    }\n  },\n\n  /**\n   * @private\n   */\n  _moveLeft: function(e, prop) {\n    return this._move(e, prop, 'Left');\n  },\n\n  /**\n   * @private\n   */\n  _moveRight: function(e, prop) {\n    return this._move(e, prop, 'Right');\n  },\n\n  /**\n   * Moves cursor left without keeping selection\n   * @param {Event} e\n   */\n  moveCursorLeftWithoutShift: function(e) {\n    var change = true;\n    this._selectionDirection = 'left';\n\n    // only move cursor when there is no selection,\n    // otherwise we discard it, and leave cursor on same place\n    if (this.selectionEnd === this.selectionStart && this.selectionStart !== 0) {\n      change = this._moveLeft(e, 'selectionStart');\n\n    }\n    this.selectionEnd = this.selectionStart;\n    return change;\n  },\n\n  /**\n   * Moves cursor left while keeping selection\n   * @param {Event} e\n   */\n  moveCursorLeftWithShift: function(e) {\n    if (this._selectionDirection === 'right' && this.selectionStart !== this.selectionEnd) {\n      return this._moveLeft(e, 'selectionEnd');\n    }\n    else if (this.selectionStart !== 0){\n      this._selectionDirection = 'left';\n      return this._moveLeft(e, 'selectionStart');\n    }\n  },\n\n  /**\n   * Moves cursor right\n   * @param {Event} e Event object\n   */\n  moveCursorRight: function(e) {\n    if (this.selectionStart >= this._text.length && this.selectionEnd >= this._text.length) {\n      return;\n    }\n    this._moveCursorLeftOrRight('Right', e);\n  },\n\n  /**\n   * Moves cursor right or Left, fires event\n   * @param {String} direction 'Left', 'Right'\n   * @param {Event} e Event object\n   */\n  _moveCursorLeftOrRight: function(direction, e) {\n    var actionName = 'moveCursor' + direction + 'With';\n    this._currentCursorOpacity = 1;\n\n    if (e.shiftKey) {\n      actionName += 'Shift';\n    }\n    else {\n      actionName += 'outShift';\n    }\n    if (this[actionName](e)) {\n      this.abortCursorAnimation();\n      this.initDelayedCursor();\n      this._fireSelectionChanged();\n      this._updateTextarea();\n    }\n  },\n\n  /**\n   * Moves cursor right while keeping selection\n   * @param {Event} e\n   */\n  moveCursorRightWithShift: function(e) {\n    if (this._selectionDirection === 'left' && this.selectionStart !== this.selectionEnd) {\n      return this._moveRight(e, 'selectionStart');\n    }\n    else if (this.selectionEnd !== this._text.length) {\n      this._selectionDirection = 'right';\n      return this._moveRight(e, 'selectionEnd');\n    }\n  },\n\n  /**\n   * Moves cursor right without keeping selection\n   * @param {Event} e Event object\n   */\n  moveCursorRightWithoutShift: function(e) {\n    var changed = true;\n    this._selectionDirection = 'right';\n\n    if (this.selectionStart === this.selectionEnd) {\n      changed = this._moveRight(e, 'selectionStart');\n      this.selectionEnd = this.selectionStart;\n    }\n    else {\n      this.selectionStart = this.selectionEnd;\n    }\n    return changed;\n  },\n\n  /**\n   * Removes characters from start/end\n   * start/end ar per grapheme position in _text array.\n   *\n   * @param {Number} start\n   * @param {Number} end default to start + 1\n   */\n  removeChars: function(start, end) {\n    if (typeof end === 'undefined') {\n      end = start + 1;\n    }\n    this.removeStyleFromTo(start, end);\n    this._text.splice(start, end - start);\n    this.text = this._text.join('');\n    this.set('dirty', true);\n    if (this._shouldClearDimensionCache()) {\n      this.initDimensions();\n      this.setCoords();\n    }\n    this._removeExtraneousStyles();\n  },\n\n  /**\n   * insert characters at start position, before start position.\n   * start  equal 1 it means the text get inserted between actual grapheme 0 and 1\n   * if style array is provided, it must be as the same length of text in graphemes\n   * if end is provided and is bigger than start, old text is replaced.\n   * start/end ar per grapheme position in _text array.\n   *\n   * @param {String} text text to insert\n   * @param {Array} style array of style objects\n   * @param {Number} start\n   * @param {Number} end default to start + 1\n   */\n  insertChars: function(text, style, start, end) {\n    if (typeof end === 'undefined') {\n      end = start;\n    }\n    if (end > start) {\n      this.removeStyleFromTo(start, end);\n    }\n    var graphemes = fabric.util.string.graphemeSplit(text);\n    this.insertNewStyleBlock(graphemes, start, style);\n    this._text = [].concat(this._text.slice(0, start), graphemes, this._text.slice(end));\n    this.text = this._text.join('');\n    this.set('dirty', true);\n    if (this._shouldClearDimensionCache()) {\n      this.initDimensions();\n      this.setCoords();\n    }\n    this._removeExtraneousStyles();\n  },\n\n});\n\n\n/* _TO_SVG_START_ */\n(function() {\n  var toFixed = fabric.util.toFixed,\n      multipleSpacesRegex = /  +/g;\n\n  fabric.util.object.extend(fabric.Text.prototype, /** @lends fabric.Text.prototype */ {\n\n    /**\n     * Returns SVG representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    _toSVG: function() {\n      var offsets = this._getSVGLeftTopOffsets(),\n          textAndBg = this._getSVGTextAndBg(offsets.textTop, offsets.textLeft);\n      return this._wrapSVGTextAndBg(textAndBg);\n    },\n\n    /**\n     * Returns svg representation of an instance\n     * @param {Function} [reviver] Method for further parsing of svg representation.\n     * @return {String} svg representation of an instance\n     */\n    toSVG: function(reviver) {\n      return this._createBaseSVGMarkup(\n        this._toSVG(),\n        { reviver: reviver, noStyle: true, withShadow: true }\n      );\n    },\n\n    /**\n     * @private\n     */\n    _getSVGLeftTopOffsets: function() {\n      return {\n        textLeft: -this.width / 2,\n        textTop: -this.height / 2,\n        lineTop: this.getHeightOfLine(0)\n      };\n    },\n\n    /**\n     * @private\n     */\n    _wrapSVGTextAndBg: function(textAndBg) {\n      var noShadow = true,\n          textDecoration = this.getSvgTextDecoration(this);\n      return [\n        textAndBg.textBgRects.join(''),\n        '\\t\\t<text xml:space=\"preserve\" ',\n        (this.fontFamily ? 'font-family=\"' + this.fontFamily.replace(/\"/g, '\\'') + '\" ' : ''),\n        (this.fontSize ? 'font-size=\"' + this.fontSize + '\" ' : ''),\n        (this.fontStyle ? 'font-style=\"' + this.fontStyle + '\" ' : ''),\n        (this.fontWeight ? 'font-weight=\"' + this.fontWeight + '\" ' : ''),\n        (textDecoration ? 'text-decoration=\"' + textDecoration + '\" ' : ''),\n        'style=\"', this.getSvgStyles(noShadow), '\"', this.addPaintOrder(), ' >',\n        textAndBg.textSpans.join(''),\n        '</text>\\n'\n      ];\n    },\n\n    /**\n     * @private\n     * @param {Number} textTopOffset Text top offset\n     * @param {Number} textLeftOffset Text left offset\n     * @return {Object}\n     */\n    _getSVGTextAndBg: function(textTopOffset, textLeftOffset) {\n      var textSpans = [],\n          textBgRects = [],\n          height = textTopOffset, lineOffset;\n      // bounding-box background\n      this._setSVGBg(textBgRects);\n\n      // text and text-background\n      for (var i = 0, len = this._textLines.length; i < len; i++) {\n        lineOffset = this._getLineLeftOffset(i);\n        if (this.textBackgroundColor || this.styleHas('textBackgroundColor', i)) {\n          this._setSVGTextLineBg(textBgRects, i, textLeftOffset + lineOffset, height);\n        }\n        this._setSVGTextLineText(textSpans, i, textLeftOffset + lineOffset, height);\n        height += this.getHeightOfLine(i);\n      }\n\n      return {\n        textSpans: textSpans,\n        textBgRects: textBgRects\n      };\n    },\n\n    /**\n     * @private\n     */\n    _createTextCharSpan: function(_char, styleDecl, left, top) {\n      var shouldUseWhitespace = _char !== _char.trim() || _char.match(multipleSpacesRegex),\n          styleProps = this.getSvgSpanStyles(styleDecl, shouldUseWhitespace),\n          fillStyles = styleProps ? 'style=\"' + styleProps + '\"' : '',\n          dy = styleDecl.deltaY, dySpan = '',\n          NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n      if (dy) {\n        dySpan = ' dy=\"' + toFixed(dy, NUM_FRACTION_DIGITS) + '\" ';\n      }\n      return [\n        '<tspan x=\"', toFixed(left, NUM_FRACTION_DIGITS), '\" y=\"',\n        toFixed(top, NUM_FRACTION_DIGITS), '\" ', dySpan,\n        fillStyles, '>',\n        fabric.util.string.escapeXml(_char),\n        '</tspan>'\n      ].join('');\n    },\n\n    _setSVGTextLineText: function(textSpans, lineIndex, textLeftOffset, textTopOffset) {\n      // set proper line offset\n      var lineHeight = this.getHeightOfLine(lineIndex),\n          isJustify = this.textAlign.indexOf('justify') !== -1,\n          actualStyle,\n          nextStyle,\n          charsToRender = '',\n          charBox, style,\n          boxWidth = 0,\n          line = this._textLines[lineIndex],\n          timeToRender;\n\n      textTopOffset += lineHeight * (1 - this._fontSizeFraction) / this.lineHeight;\n      for (var i = 0, len = line.length - 1; i <= len; i++) {\n        timeToRender = i === len || this.charSpacing;\n        charsToRender += line[i];\n        charBox = this.__charBounds[lineIndex][i];\n        if (boxWidth === 0) {\n          textLeftOffset += charBox.kernedWidth - charBox.width;\n          boxWidth += charBox.width;\n        }\n        else {\n          boxWidth += charBox.kernedWidth;\n        }\n        if (isJustify && !timeToRender) {\n          if (this._reSpaceAndTab.test(line[i])) {\n            timeToRender = true;\n          }\n        }\n        if (!timeToRender) {\n          // if we have charSpacing, we render char by char\n          actualStyle = actualStyle || this.getCompleteStyleDeclaration(lineIndex, i);\n          nextStyle = this.getCompleteStyleDeclaration(lineIndex, i + 1);\n          timeToRender = this._hasStyleChangedForSvg(actualStyle, nextStyle);\n        }\n        if (timeToRender) {\n          style = this._getStyleDeclaration(lineIndex, i) || { };\n          textSpans.push(this._createTextCharSpan(charsToRender, style, textLeftOffset, textTopOffset));\n          charsToRender = '';\n          actualStyle = nextStyle;\n          textLeftOffset += boxWidth;\n          boxWidth = 0;\n        }\n      }\n    },\n\n    _pushTextBgRect: function(textBgRects, color, left, top, width, height) {\n      var NUM_FRACTION_DIGITS = fabric.Object.NUM_FRACTION_DIGITS;\n      textBgRects.push(\n        '\\t\\t<rect ',\n        this._getFillAttributes(color),\n        ' x=\"',\n        toFixed(left, NUM_FRACTION_DIGITS),\n        '\" y=\"',\n        toFixed(top, NUM_FRACTION_DIGITS),\n        '\" width=\"',\n        toFixed(width, NUM_FRACTION_DIGITS),\n        '\" height=\"',\n        toFixed(height, NUM_FRACTION_DIGITS),\n        '\"></rect>\\n');\n    },\n\n    _setSVGTextLineBg: function(textBgRects, i, leftOffset, textTopOffset) {\n      var line = this._textLines[i],\n          heightOfLine = this.getHeightOfLine(i) / this.lineHeight,\n          boxWidth = 0,\n          boxStart = 0,\n          charBox, currentColor,\n          lastColor = this.getValueOfPropertyAt(i, 0, 'textBackgroundColor');\n      for (var j = 0, jlen = line.length; j < jlen; j++) {\n        charBox = this.__charBounds[i][j];\n        currentColor = this.getValueOfPropertyAt(i, j, 'textBackgroundColor');\n        if (currentColor !== lastColor) {\n          lastColor && this._pushTextBgRect(textBgRects, lastColor, leftOffset + boxStart,\n            textTopOffset, boxWidth, heightOfLine);\n          boxStart = charBox.left;\n          boxWidth = charBox.width;\n          lastColor = currentColor;\n        }\n        else {\n          boxWidth += charBox.kernedWidth;\n        }\n      }\n      currentColor && this._pushTextBgRect(textBgRects, currentColor, leftOffset + boxStart,\n        textTopOffset, boxWidth, heightOfLine);\n    },\n\n    /**\n     * Adobe Illustrator (at least CS5) is unable to render rgba()-based fill values\n     * we work around it by \"moving\" alpha channel into opacity attribute and setting fill's alpha to 1\n     *\n     * @private\n     * @param {*} value\n     * @return {String}\n     */\n    _getFillAttributes: function(value) {\n      var fillColor = (value && typeof value === 'string') ? new fabric.Color(value) : '';\n      if (!fillColor || !fillColor.getSource() || fillColor.getAlpha() === 1) {\n        return 'fill=\"' + value + '\"';\n      }\n      return 'opacity=\"' + fillColor.getAlpha() + '\" fill=\"' + fillColor.setAlpha(1).toRgb() + '\"';\n    },\n\n    /**\n     * @private\n     */\n    _getSVGLineTopOffset: function(lineIndex) {\n      var lineTopOffset = 0, lastHeight = 0;\n      for (var j = 0; j < lineIndex; j++) {\n        lineTopOffset += this.getHeightOfLine(j);\n      }\n      lastHeight = this.getHeightOfLine(j);\n      return {\n        lineTop: lineTopOffset,\n        offset: (this._fontSizeMult - this._fontSizeFraction) * lastHeight / (this.lineHeight * this._fontSizeMult)\n      };\n    },\n\n    /**\n     * Returns styles-string for svg-export\n     * @param {Boolean} skipShadow a boolean to skip shadow filter output\n     * @return {String}\n     */\n    getSvgStyles: function(skipShadow) {\n      var svgStyle = fabric.Object.prototype.getSvgStyles.call(this, skipShadow);\n      return svgStyle + ' white-space: pre;';\n    },\n  });\n})();\n/* _TO_SVG_END_ */\n\n\n(function(global) {\n\n  'use strict';\n\n  var fabric = global.fabric || (global.fabric = {});\n\n  /**\n   * Textbox class, based on IText, allows the user to resize the text rectangle\n   * and wraps lines automatically. Textboxes have their Y scaling locked, the\n   * user can only change width. Height is adjusted automatically based on the\n   * wrapping of lines.\n   * @class fabric.Textbox\n   * @extends fabric.IText\n   * @mixes fabric.Observable\n   * @return {fabric.Textbox} thisArg\n   * @see {@link fabric.Textbox#initialize} for constructor definition\n   */\n  fabric.Textbox = fabric.util.createClass(fabric.IText, fabric.Observable, {\n\n    /**\n     * Type of an object\n     * @type String\n     * @default\n     */\n    type: 'textbox',\n\n    /**\n     * Minimum width of textbox, in pixels.\n     * @type Number\n     * @default\n     */\n    minWidth: 20,\n\n    /**\n     * Minimum calculated width of a textbox, in pixels.\n     * fixed to 2 so that an empty textbox cannot go to 0\n     * and is still selectable without text.\n     * @type Number\n     * @default\n     */\n    dynamicMinWidth: 2,\n\n    /**\n     * Cached array of text wrapping.\n     * @type Array\n     */\n    __cachedLines: null,\n\n    /**\n     * Override standard Object class values\n     */\n    lockScalingFlip: true,\n\n    /**\n     * Override standard Object class values\n     * Textbox needs this on false\n     */\n    noScaleCache: false,\n\n    /**\n     * Properties which when set cause object to change dimensions\n     * @type Object\n     * @private\n     */\n    _dimensionAffectingProps: fabric.Text.prototype._dimensionAffectingProps.concat('width'),\n\n    /**\n     * Use this regular expression to split strings in breakable lines\n     * @private\n     */\n    _wordJoiners: /[ \\t\\r]/,\n\n    /**\n     * Use this boolean property in order to split strings that have no white space concept.\n     * this is a cheap way to help with chinese/japaense\n     * @type Boolean\n     * @since 2.6.0\n     */\n    splitByGrapheme: false,\n\n    /**\n     * Unlike superclass's version of this function, Textbox does not update\n     * its width.\n     * @private\n     * @override\n     */\n    initDimensions: function() {\n      if (this.__skipDimension) {\n        return;\n      }\n      this.isEditing && this.initDelayedCursor();\n      this.clearContextTop();\n      this._clearCache();\n      // clear dynamicMinWidth as it will be different after we re-wrap line\n      this.dynamicMinWidth = 0;\n      // wrap lines\n      this._styleMap = this._generateStyleMap(this._splitText());\n      // if after wrapping, the width is smaller than dynamicMinWidth, change the width and re-wrap\n      if (this.dynamicMinWidth > this.width) {\n        this._set('width', this.dynamicMinWidth);\n      }\n      if (this.textAlign.indexOf('justify') !== -1) {\n        // once text is measured we need to make space fatter to make justified text.\n        this.enlargeSpaces();\n      }\n      // clear cache and re-calculate height\n      this.height = this.calcTextHeight();\n      this.saveState({ propertySet: '_dimensionAffectingProps' });\n    },\n\n    /**\n     * Generate an object that translates the style object so that it is\n     * broken up by visual lines (new lines and automatic wrapping).\n     * The original text styles object is broken up by actual lines (new lines only),\n     * which is only sufficient for Text / IText\n     * @private\n     */\n    _generateStyleMap: function(textInfo) {\n      var realLineCount     = 0,\n          realLineCharCount = 0,\n          charCount         = 0,\n          map               = {};\n\n      for (var i = 0; i < textInfo.graphemeLines.length; i++) {\n        if (textInfo.graphemeText[charCount] === '\\n' && i > 0) {\n          realLineCharCount = 0;\n          charCount++;\n          realLineCount++;\n        }\n        else if (!this.splitByGrapheme && this._reSpaceAndTab.test(textInfo.graphemeText[charCount]) && i > 0) {\n          // this case deals with space's that are removed from end of lines when wrapping\n          realLineCharCount++;\n          charCount++;\n        }\n\n        map[i] = { line: realLineCount, offset: realLineCharCount };\n\n        charCount += textInfo.graphemeLines[i].length;\n        realLineCharCount += textInfo.graphemeLines[i].length;\n      }\n\n      return map;\n    },\n\n    /**\n     * Returns true if object has a style property or has it on a specified line\n     * @param {Number} lineIndex\n     * @return {Boolean}\n     */\n    styleHas: function(property, lineIndex) {\n      if (this._styleMap && !this.isWrapping) {\n        var map = this._styleMap[lineIndex];\n        if (map) {\n          lineIndex = map.line;\n        }\n      }\n      return fabric.Text.prototype.styleHas.call(this, property, lineIndex);\n    },\n\n    /**\n     * Returns true if object has no styling or no styling in a line\n     * @param {Number} lineIndex , lineIndex is on wrapped lines.\n     * @return {Boolean}\n     */\n    isEmptyStyles: function(lineIndex) {\n      if (!this.styles) {\n        return true;\n      }\n      var offset = 0, nextLineIndex = lineIndex + 1, nextOffset, obj, shouldLimit = false,\n          map = this._styleMap[lineIndex], mapNextLine = this._styleMap[lineIndex + 1];\n      if (map) {\n        lineIndex = map.line;\n        offset = map.offset;\n      }\n      if (mapNextLine) {\n        nextLineIndex = mapNextLine.line;\n        shouldLimit = nextLineIndex === lineIndex;\n        nextOffset = mapNextLine.offset;\n      }\n      obj = typeof lineIndex === 'undefined' ? this.styles : { line: this.styles[lineIndex] };\n      for (var p1 in obj) {\n        for (var p2 in obj[p1]) {\n          if (p2 >= offset && (!shouldLimit || p2 < nextOffset)) {\n            // eslint-disable-next-line no-unused-vars\n            for (var p3 in obj[p1][p2]) {\n              return false;\n            }\n          }\n        }\n      }\n      return true;\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @private\n     */\n    _getStyleDeclaration: function(lineIndex, charIndex) {\n      if (this._styleMap && !this.isWrapping) {\n        var map = this._styleMap[lineIndex];\n        if (!map) {\n          return null;\n        }\n        lineIndex = map.line;\n        charIndex = map.offset + charIndex;\n      }\n      return this.callSuper('_getStyleDeclaration', lineIndex, charIndex);\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @param {Object} style\n     * @private\n     */\n    _setStyleDeclaration: function(lineIndex, charIndex, style) {\n      var map = this._styleMap[lineIndex];\n      lineIndex = map.line;\n      charIndex = map.offset + charIndex;\n\n      this.styles[lineIndex][charIndex] = style;\n    },\n\n    /**\n     * @param {Number} lineIndex\n     * @param {Number} charIndex\n     * @private\n     */\n    _deleteStyleDeclaration: function(lineIndex, charIndex) {\n      var map = this._styleMap[lineIndex];\n      lineIndex = map.line;\n      charIndex = map.offset + charIndex;\n      delete this.styles[lineIndex][charIndex];\n    },\n\n    /**\n     * probably broken need a fix\n     * Returns the real style line that correspond to the wrapped lineIndex line\n     * Used just to verify if the line does exist or not.\n     * @param {Number} lineIndex\n     * @returns {Boolean} if the line exists or not\n     * @private\n     */\n    _getLineStyle: function(lineIndex) {\n      var map = this._styleMap[lineIndex];\n      return !!this.styles[map.line];\n    },\n\n    /**\n     * Set the line style to an empty object so that is initialized\n     * @param {Number} lineIndex\n     * @param {Object} style\n     * @private\n     */\n    _setLineStyle: function(lineIndex) {\n      var map = this._styleMap[lineIndex];\n      this.styles[map.line] = {};\n    },\n\n    /**\n     * Wraps text using the 'width' property of Textbox. First this function\n     * splits text on newlines, so we preserve newlines entered by the user.\n     * Then it wraps each line using the width of the Textbox by calling\n     * _wrapLine().\n     * @param {Array} lines The string array of text that is split into lines\n     * @param {Number} desiredWidth width you want to wrap to\n     * @returns {Array} Array of lines\n     */\n    _wrapText: function(lines, desiredWidth) {\n      var wrapped = [], i;\n      this.isWrapping = true;\n      for (i = 0; i < lines.length; i++) {\n        wrapped = wrapped.concat(this._wrapLine(lines[i], i, desiredWidth));\n      }\n      this.isWrapping = false;\n      return wrapped;\n    },\n\n    /**\n     * Helper function to measure a string of text, given its lineIndex and charIndex offset\n     * it gets called when charBounds are not available yet.\n     * @param {CanvasRenderingContext2D} ctx\n     * @param {String} text\n     * @param {number} lineIndex\n     * @param {number} charOffset\n     * @returns {number}\n     * @private\n     */\n    _measureWord: function(word, lineIndex, charOffset) {\n      var width = 0, prevGrapheme, skipLeft = true;\n      charOffset = charOffset || 0;\n      for (var i = 0, len = word.length; i < len; i++) {\n        var box = this._getGraphemeBox(word[i], lineIndex, i + charOffset, prevGrapheme, skipLeft);\n        width += box.kernedWidth;\n        prevGrapheme = word[i];\n      }\n      return width;\n    },\n\n    /**\n     * Wraps a line of text using the width of the Textbox and a context.\n     * @param {Array} line The grapheme array that represent the line\n     * @param {Number} lineIndex\n     * @param {Number} desiredWidth width you want to wrap the line to\n     * @param {Number} reservedSpace space to remove from wrapping for custom functionalities\n     * @returns {Array} Array of line(s) into which the given text is wrapped\n     * to.\n     */\n    _wrapLine: function(_line, lineIndex, desiredWidth, reservedSpace) {\n      var lineWidth = 0,\n          splitByGrapheme = this.splitByGrapheme,\n          graphemeLines = [],\n          line = [],\n          // spaces in different languges?\n          words = splitByGrapheme ? fabric.util.string.graphemeSplit(_line) : _line.split(this._wordJoiners),\n          word = '',\n          offset = 0,\n          infix = splitByGrapheme ? '' : ' ',\n          wordWidth = 0,\n          infixWidth = 0,\n          largestWordWidth = 0,\n          lineJustStarted = true,\n          additionalSpace = splitByGrapheme ? 0 : this._getWidthOfCharSpacing(),\n          reservedSpace = reservedSpace || 0;\n      // fix a difference between split and graphemeSplit\n      if (words.length === 0) {\n        words.push([]);\n      }\n      desiredWidth -= reservedSpace;\n      for (var i = 0; i < words.length; i++) {\n        // if using splitByGrapheme words are already in graphemes.\n        word = splitByGrapheme ? words[i] : fabric.util.string.graphemeSplit(words[i]);\n        wordWidth = this._measureWord(word, lineIndex, offset);\n        offset += word.length;\n\n        lineWidth += infixWidth + wordWidth - additionalSpace;\n\n        if (lineWidth >= desiredWidth && !lineJustStarted) {\n          graphemeLines.push(line);\n          line = [];\n          lineWidth = wordWidth;\n          lineJustStarted = true;\n        }\n        else {\n          lineWidth += additionalSpace;\n        }\n\n        if (!lineJustStarted && !splitByGrapheme) {\n          line.push(infix);\n        }\n        line = line.concat(word);\n\n        infixWidth = this._measureWord([infix], lineIndex, offset);\n        offset++;\n        lineJustStarted = false;\n        // keep track of largest word\n        if (wordWidth > largestWordWidth) {\n          largestWordWidth = wordWidth;\n        }\n      }\n\n      i && graphemeLines.push(line);\n\n      if (largestWordWidth + reservedSpace > this.dynamicMinWidth) {\n        this.dynamicMinWidth = largestWordWidth - additionalSpace + reservedSpace;\n      }\n\n      return graphemeLines;\n    },\n\n    /**\n     * Detect if the text line is ended with an hard break\n     * text and itext do not have wrapping, return false\n     * @param {Number} lineIndex text to split\n     * @return {Boolean}\n     */\n    isEndOfWrapping: function(lineIndex) {\n      if (!this._styleMap[lineIndex + 1]) {\n        // is last line, return true;\n        return true;\n      }\n      if (this._styleMap[lineIndex + 1].line !== this._styleMap[lineIndex].line) {\n        // this is last line before a line break, return true;\n        return true;\n      }\n      return false;\n    },\n\n    /**\n     * Detect if a line has a linebreak and so we need to account for it when moving\n     * and counting style.\n     * @return Number\n     */\n    missingNewlineOffset: function(lineIndex) {\n      if (this.splitByGrapheme) {\n        return this.isEndOfWrapping(lineIndex) ? 1 : 0;\n      }\n      return 1;\n    },\n\n    /**\n    * Gets lines of text to render in the Textbox. This function calculates\n    * text wrapping on the fly every time it is called.\n    * @param {String} text text to split\n    * @returns {Array} Array of lines in the Textbox.\n    * @override\n    */\n    _splitTextIntoLines: function(text) {\n      var newText = fabric.Text.prototype._splitTextIntoLines.call(this, text),\n          graphemeLines = this._wrapText(newText.lines, this.width),\n          lines = new Array(graphemeLines.length);\n      for (var i = 0; i < graphemeLines.length; i++) {\n        lines[i] = graphemeLines[i].join('');\n      }\n      newText.lines = lines;\n      newText.graphemeLines = graphemeLines;\n      return newText;\n    },\n\n    getMinWidth: function() {\n      return Math.max(this.minWidth, this.dynamicMinWidth);\n    },\n\n    _removeExtraneousStyles: function() {\n      var linesToKeep = {};\n      for (var prop in this._styleMap) {\n        if (this._textLines[prop]) {\n          linesToKeep[this._styleMap[prop].line] = 1;\n        }\n      }\n      for (var prop in this.styles) {\n        if (!linesToKeep[prop]) {\n          delete this.styles[prop];\n        }\n      }\n    },\n\n    /**\n     * Returns object representation of an instance\n     * @method toObject\n     * @param {Array} [propertiesToInclude] Any properties that you might want to additionally include in the output\n     * @return {Object} object representation of an instance\n     */\n    toObject: function(propertiesToInclude) {\n      return this.callSuper('toObject', ['minWidth', 'splitByGrapheme'].concat(propertiesToInclude));\n    }\n  });\n\n  /**\n   * Returns fabric.Textbox instance from an object representation\n   * @static\n   * @memberOf fabric.Textbox\n   * @param {Object} object Object to create an instance from\n   * @param {Function} [callback] Callback to invoke when an fabric.Textbox instance is created\n   */\n  fabric.Textbox.fromObject = function(object, callback) {\n    return fabric.Object._fromObject('Textbox', object, callback, 'text');\n  };\n})(typeof exports !== 'undefined' ? exports : this);\n\n","'use strict'\n\nfunction _process (v, mod) {\n  var i\n  var r\n\n  if (typeof mod === 'function') {\n    r = mod(v)\n    if (r !== undefined) {\n      v = r\n    }\n  } else if (Array.isArray(mod)) {\n    for (i = 0; i < mod.length; i++) {\n      r = mod[i](v)\n      if (r !== undefined) {\n        v = r\n      }\n    }\n  }\n\n  return v\n}\n\nfunction parseKey (key, val) {\n  // detect negative index notation\n  if (key[0] === '-' && Array.isArray(val) && /^-\\d+$/.test(key)) {\n    return val.length + parseInt(key, 10)\n  }\n  return key\n}\n\nfunction isIndex (k) {\n  return /^\\d+$/.test(k)\n}\n\nfunction isObject (val) {\n  return Object.prototype.toString.call(val) === '[object Object]'\n}\n\nfunction isArrayOrObject (val) {\n  return Object(val) === val\n}\n\nfunction isEmptyObject (val) {\n  return Object.keys(val).length === 0\n}\n\nvar blacklist = ['__proto__', 'prototype', 'constructor']\nvar blacklistFilter = function (part) { return blacklist.indexOf(part) === -1 }\n\nfunction parsePath (path, sep) {\n  if (path.indexOf('[') >= 0) {\n    path = path.replace(/\\[/g, '.').replace(/]/g, '')\n  }\n\n  var parts = path.split(sep)\n\n  var check = parts.filter(blacklistFilter)\n\n  if (check.length !== parts.length) {\n    throw Error('Refusing to update blacklisted property ' + path)\n  }\n\n  return parts\n}\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty\n\nfunction DotObject (separator, override, useArray, useBrackets) {\n  if (!(this instanceof DotObject)) {\n    return new DotObject(separator, override, useArray, useBrackets)\n  }\n\n  if (typeof override === 'undefined') override = false\n  if (typeof useArray === 'undefined') useArray = true\n  if (typeof useBrackets === 'undefined') useBrackets = true\n  this.separator = separator || '.'\n  this.override = override\n  this.useArray = useArray\n  this.useBrackets = useBrackets\n  this.keepArray = false\n\n  // contains touched arrays\n  this.cleanup = []\n}\n\nvar dotDefault = new DotObject('.', false, true, true)\nfunction wrap (method) {\n  return function () {\n    return dotDefault[method].apply(dotDefault, arguments)\n  }\n}\n\nDotObject.prototype._fill = function (a, obj, v, mod) {\n  var k = a.shift()\n\n  if (a.length > 0) {\n    obj[k] = obj[k] || (this.useArray && isIndex(a[0]) ? [] : {})\n\n    if (!isArrayOrObject(obj[k])) {\n      if (this.override) {\n        obj[k] = {}\n      } else {\n        if (!(isArrayOrObject(v) && isEmptyObject(v))) {\n          throw new Error(\n            'Trying to redefine `' + k + '` which is a ' + typeof obj[k]\n          )\n        }\n\n        return\n      }\n    }\n\n    this._fill(a, obj[k], v, mod)\n  } else {\n    if (!this.override && isArrayOrObject(obj[k]) && !isEmptyObject(obj[k])) {\n      if (!(isArrayOrObject(v) && isEmptyObject(v))) {\n        throw new Error(\"Trying to redefine non-empty obj['\" + k + \"']\")\n      }\n\n      return\n    }\n\n    obj[k] = _process(v, mod)\n  }\n}\n\n/**\n *\n * Converts an object with dotted-key/value pairs to it's expanded version\n *\n * Optionally transformed by a set of modifiers.\n *\n * Usage:\n *\n *   var row = {\n *     'nr': 200,\n *     'doc.name': '  My Document  '\n *   }\n *\n *   var mods = {\n *     'doc.name': [_s.trim, _s.underscored]\n *   }\n *\n *   dot.object(row, mods)\n *\n * @param {Object} obj\n * @param {Object} mods\n */\nDotObject.prototype.object = function (obj, mods) {\n  var self = this\n\n  Object.keys(obj).forEach(function (k) {\n    var mod = mods === undefined ? null : mods[k]\n    // normalize array notation.\n    var ok = parsePath(k, self.separator).join(self.separator)\n\n    if (ok.indexOf(self.separator) !== -1) {\n      self._fill(ok.split(self.separator), obj, obj[k], mod)\n      delete obj[k]\n    } else {\n      obj[k] = _process(obj[k], mod)\n    }\n  })\n\n  return obj\n}\n\n/**\n * @param {String} path dotted path\n * @param {String} v value to be set\n * @param {Object} obj object to be modified\n * @param {Function|Array} mod optional modifier\n */\nDotObject.prototype.str = function (path, v, obj, mod) {\n  var ok = parsePath(path, this.separator).join(this.separator)\n\n  if (path.indexOf(this.separator) !== -1) {\n    this._fill(ok.split(this.separator), obj, v, mod)\n  } else {\n    obj[path] = _process(v, mod)\n  }\n\n  return obj\n}\n\n/**\n *\n * Pick a value from an object using dot notation.\n *\n * Optionally remove the value\n *\n * @param {String} path\n * @param {Object} obj\n * @param {Boolean} remove\n */\nDotObject.prototype.pick = function (path, obj, remove, reindexArray) {\n  var i\n  var keys\n  var val\n  var key\n  var cp\n\n  keys = parsePath(path, this.separator)\n  for (i = 0; i < keys.length; i++) {\n    key = parseKey(keys[i], obj)\n    if (obj && typeof obj === 'object' && key in obj) {\n      if (i === keys.length - 1) {\n        if (remove) {\n          val = obj[key]\n          if (reindexArray && Array.isArray(obj)) {\n            obj.splice(key, 1)\n          } else {\n            delete obj[key]\n          }\n          if (Array.isArray(obj)) {\n            cp = keys.slice(0, -1).join('.')\n            if (this.cleanup.indexOf(cp) === -1) {\n              this.cleanup.push(cp)\n            }\n          }\n          return val\n        } else {\n          return obj[key]\n        }\n      } else {\n        obj = obj[key]\n      }\n    } else {\n      return undefined\n    }\n  }\n  if (remove && Array.isArray(obj)) {\n    obj = obj.filter(function (n) {\n      return n !== undefined\n    })\n  }\n  return obj\n}\n/**\n *\n * Delete value from an object using dot notation.\n *\n * @param {String} path\n * @param {Object} obj\n * @return {any} The removed value\n */\nDotObject.prototype.delete = function (path, obj) {\n  return this.remove(path, obj, true)\n}\n\n/**\n *\n * Remove value from an object using dot notation.\n *\n * Will remove multiple items if path is an array.\n * In this case array indexes will be retained until all\n * removals have been processed.\n *\n * Use dot.delete() to automatically  re-index arrays.\n *\n * @param {String|Array<String>} path\n * @param {Object} obj\n * @param {Boolean} reindexArray\n * @return {any} The removed value\n */\nDotObject.prototype.remove = function (path, obj, reindexArray) {\n  var i\n\n  this.cleanup = []\n  if (Array.isArray(path)) {\n    for (i = 0; i < path.length; i++) {\n      this.pick(path[i], obj, true, reindexArray)\n    }\n    if (!reindexArray) {\n      this._cleanup(obj)\n    }\n    return obj\n  } else {\n    return this.pick(path, obj, true, reindexArray)\n  }\n}\n\nDotObject.prototype._cleanup = function (obj) {\n  var ret\n  var i\n  var keys\n  var root\n  if (this.cleanup.length) {\n    for (i = 0; i < this.cleanup.length; i++) {\n      keys = this.cleanup[i].split('.')\n      root = keys.splice(0, -1).join('.')\n      ret = root ? this.pick(root, obj) : obj\n      ret = ret[keys[0]].filter(function (v) {\n        return v !== undefined\n      })\n      this.set(this.cleanup[i], ret, obj)\n    }\n    this.cleanup = []\n  }\n}\n\n/**\n * Alias method  for `dot.remove`\n *\n * Note: this is not an alias for dot.delete()\n *\n * @param {String|Array<String>} path\n * @param {Object} obj\n * @param {Boolean} reindexArray\n * @return {any} The removed value\n */\nDotObject.prototype.del = DotObject.prototype.remove\n\n/**\n *\n * Move a property from one place to the other.\n *\n * If the source path does not exist (undefined)\n * the target property will not be set.\n *\n * @param {String} source\n * @param {String} target\n * @param {Object} obj\n * @param {Function|Array} mods\n * @param {Boolean} merge\n */\nDotObject.prototype.move = function (source, target, obj, mods, merge) {\n  if (typeof mods === 'function' || Array.isArray(mods)) {\n    this.set(target, _process(this.pick(source, obj, true), mods), obj, merge)\n  } else {\n    merge = mods\n    this.set(target, this.pick(source, obj, true), obj, merge)\n  }\n\n  return obj\n}\n\n/**\n *\n * Transfer a property from one object to another object.\n *\n * If the source path does not exist (undefined)\n * the property on the other object will not be set.\n *\n * @param {String} source\n * @param {String} target\n * @param {Object} obj1\n * @param {Object} obj2\n * @param {Function|Array} mods\n * @param {Boolean} merge\n */\nDotObject.prototype.transfer = function (\n  source,\n  target,\n  obj1,\n  obj2,\n  mods,\n  merge\n) {\n  if (typeof mods === 'function' || Array.isArray(mods)) {\n    this.set(\n      target,\n      _process(this.pick(source, obj1, true), mods),\n      obj2,\n      merge\n    )\n  } else {\n    merge = mods\n    this.set(target, this.pick(source, obj1, true), obj2, merge)\n  }\n\n  return obj2\n}\n\n/**\n *\n * Copy a property from one object to another object.\n *\n * If the source path does not exist (undefined)\n * the property on the other object will not be set.\n *\n * @param {String} source\n * @param {String} target\n * @param {Object} obj1\n * @param {Object} obj2\n * @param {Function|Array} mods\n * @param {Boolean} merge\n */\nDotObject.prototype.copy = function (source, target, obj1, obj2, mods, merge) {\n  if (typeof mods === 'function' || Array.isArray(mods)) {\n    this.set(\n      target,\n      _process(\n        // clone what is picked\n        JSON.parse(JSON.stringify(this.pick(source, obj1, false))),\n        mods\n      ),\n      obj2,\n      merge\n    )\n  } else {\n    merge = mods\n    this.set(target, this.pick(source, obj1, false), obj2, merge)\n  }\n\n  return obj2\n}\n\n/**\n *\n * Set a property on an object using dot notation.\n *\n * @param {String} path\n * @param {any} val\n * @param {Object} obj\n * @param {Boolean} merge\n */\nDotObject.prototype.set = function (path, val, obj, merge) {\n  var i\n  var k\n  var keys\n  var key\n\n  // Do not operate if the value is undefined.\n  if (typeof val === 'undefined') {\n    return obj\n  }\n  keys = parsePath(path, this.separator)\n\n  for (i = 0; i < keys.length; i++) {\n    key = keys[i]\n    if (i === keys.length - 1) {\n      if (merge && isObject(val) && isObject(obj[key])) {\n        for (k in val) {\n          if (hasOwnProperty.call(val, k)) {\n            obj[key][k] = val[k]\n          }\n        }\n      } else if (merge && Array.isArray(obj[key]) && Array.isArray(val)) {\n        for (var j = 0; j < val.length; j++) {\n          obj[keys[i]].push(val[j])\n        }\n      } else {\n        obj[key] = val\n      }\n    } else if (\n      // force the value to be an object\n      !hasOwnProperty.call(obj, key) ||\n      (!isObject(obj[key]) && !Array.isArray(obj[key]))\n    ) {\n      // initialize as array if next key is numeric\n      if (/^\\d+$/.test(keys[i + 1])) {\n        obj[key] = []\n      } else {\n        obj[key] = {}\n      }\n    }\n    obj = obj[key]\n  }\n  return obj\n}\n\n/**\n *\n * Transform an object\n *\n * Usage:\n *\n *   var obj = {\n *     \"id\": 1,\n *    \"some\": {\n *      \"thing\": \"else\"\n *    }\n *   }\n *\n *   var transform = {\n *     \"id\": \"nr\",\n *    \"some.thing\": \"name\"\n *   }\n *\n *   var tgt = dot.transform(transform, obj)\n *\n * @param {Object} recipe Transform recipe\n * @param {Object} obj Object to be transformed\n * @param {Array} mods modifiers for the target\n */\nDotObject.prototype.transform = function (recipe, obj, tgt) {\n  obj = obj || {}\n  tgt = tgt || {}\n  Object.keys(recipe).forEach(\n    function (key) {\n      this.set(recipe[key], this.pick(key, obj), tgt)\n    }.bind(this)\n  )\n  return tgt\n}\n\n/**\n *\n * Convert object to dotted-key/value pair\n *\n * Usage:\n *\n *   var tgt = dot.dot(obj)\n *\n *   or\n *\n *   var tgt = {}\n *   dot.dot(obj, tgt)\n *\n * @param {Object} obj source object\n * @param {Object} tgt target object\n * @param {Array} path path array (internal)\n */\nDotObject.prototype.dot = function (obj, tgt, path) {\n  tgt = tgt || {}\n  path = path || []\n  var isArray = Array.isArray(obj)\n\n  Object.keys(obj).forEach(\n    function (key) {\n      var index = isArray && this.useBrackets ? '[' + key + ']' : key\n      if (\n        isArrayOrObject(obj[key]) &&\n        ((isObject(obj[key]) && !isEmptyObject(obj[key])) ||\n          (Array.isArray(obj[key]) && !this.keepArray && obj[key].length !== 0))\n      ) {\n        if (isArray && this.useBrackets) {\n          var previousKey = path[path.length - 1] || ''\n          return this.dot(\n            obj[key],\n            tgt,\n            path.slice(0, -1).concat(previousKey + index)\n          )\n        } else {\n          return this.dot(obj[key], tgt, path.concat(index))\n        }\n      } else {\n        if (isArray && this.useBrackets) {\n          tgt[path.join(this.separator).concat('[' + key + ']')] = obj[key]\n        } else {\n          tgt[path.concat(index).join(this.separator)] = obj[key]\n        }\n      }\n    }.bind(this)\n  )\n  return tgt\n}\n\nDotObject.pick = wrap('pick')\nDotObject.move = wrap('move')\nDotObject.transfer = wrap('transfer')\nDotObject.transform = wrap('transform')\nDotObject.copy = wrap('copy')\nDotObject.object = wrap('object')\nDotObject.str = wrap('str')\nDotObject.set = wrap('set')\nDotObject.delete = wrap('delete')\nDotObject.del = DotObject.remove = wrap('remove')\nDotObject.dot = wrap('dot');\n['override', 'overwrite'].forEach(function (prop) {\n  Object.defineProperty(DotObject, prop, {\n    get: function () {\n      return dotDefault.override\n    },\n    set: function (val) {\n      dotDefault.override = !!val\n    }\n  })\n});\n['useArray', 'keepArray', 'useBrackets'].forEach(function (prop) {\n  Object.defineProperty(DotObject, prop, {\n    get: function () {\n      return dotDefault[prop]\n    },\n    set: function (val) {\n      dotDefault[prop] = val\n    }\n  })\n})\n\nDotObject._process = _process\n\nmodule.exports = DotObject\n","/*global XDomainRequest:false */\n\nvar TraceKit = require('../vendor/TraceKit/tracekit');\nvar stringify = require('../vendor/json-stringify-safe/stringify');\nvar md5 = require('../vendor/md5/md5');\nvar RavenConfigError = require('./configError');\n\nvar utils = require('./utils');\nvar isErrorEvent = utils.isErrorEvent;\nvar isDOMError = utils.isDOMError;\nvar isDOMException = utils.isDOMException;\nvar isError = utils.isError;\nvar isObject = utils.isObject;\nvar isPlainObject = utils.isPlainObject;\nvar isUndefined = utils.isUndefined;\nvar isFunction = utils.isFunction;\nvar isString = utils.isString;\nvar isArray = utils.isArray;\nvar isEmptyObject = utils.isEmptyObject;\nvar each = utils.each;\nvar objectMerge = utils.objectMerge;\nvar truncate = utils.truncate;\nvar objectFrozen = utils.objectFrozen;\nvar hasKey = utils.hasKey;\nvar joinRegExp = utils.joinRegExp;\nvar urlencode = utils.urlencode;\nvar uuid4 = utils.uuid4;\nvar htmlTreeAsString = utils.htmlTreeAsString;\nvar isSameException = utils.isSameException;\nvar isSameStacktrace = utils.isSameStacktrace;\nvar parseUrl = utils.parseUrl;\nvar fill = utils.fill;\nvar supportsFetch = utils.supportsFetch;\nvar supportsReferrerPolicy = utils.supportsReferrerPolicy;\nvar serializeKeysForMessage = utils.serializeKeysForMessage;\nvar serializeException = utils.serializeException;\nvar sanitize = utils.sanitize;\n\nvar wrapConsoleMethod = require('./console').wrapMethod;\n\nvar dsnKeys = 'source protocol user pass host port path'.split(' '),\n  dsnPattern = /^(?:(\\w+):)?\\/\\/(?:(\\w+)(:\\w+)?@)?([\\w\\.-]+)(?::(\\d+))?(\\/.*)/;\n\nfunction now() {\n  return +new Date();\n}\n\n// This is to be defensive in environments where window does not exist (see https://github.com/getsentry/raven-js/pull/785)\nvar _window =\n  typeof window !== 'undefined'\n    ? window\n    : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};\nvar _document = _window.document;\nvar _navigator = _window.navigator;\n\nfunction keepOriginalCallback(original, callback) {\n  return isFunction(callback)\n    ? function(data) {\n        return callback(data, original);\n      }\n    : callback;\n}\n\n// First, check for JSON support\n// If there is no JSON, we no-op the core features of Raven\n// since JSON is required to encode the payload\nfunction Raven() {\n  this._hasJSON = !!(typeof JSON === 'object' && JSON.stringify);\n  // Raven can run in contexts where there's no document (react-native)\n  this._hasDocument = !isUndefined(_document);\n  this._hasNavigator = !isUndefined(_navigator);\n  this._lastCapturedException = null;\n  this._lastData = null;\n  this._lastEventId = null;\n  this._globalServer = null;\n  this._globalKey = null;\n  this._globalProject = null;\n  this._globalContext = {};\n  this._globalOptions = {\n    // SENTRY_RELEASE can be injected by https://github.com/getsentry/sentry-webpack-plugin\n    release: _window.SENTRY_RELEASE && _window.SENTRY_RELEASE.id,\n    logger: 'javascript',\n    ignoreErrors: [],\n    ignoreUrls: [],\n    whitelistUrls: [],\n    includePaths: [],\n    headers: null,\n    collectWindowErrors: true,\n    captureUnhandledRejections: true,\n    maxMessageLength: 0,\n    // By default, truncates URL values to 250 chars\n    maxUrlLength: 250,\n    stackTraceLimit: 50,\n    autoBreadcrumbs: true,\n    instrument: true,\n    sampleRate: 1,\n    sanitizeKeys: []\n  };\n  this._fetchDefaults = {\n    method: 'POST',\n    // Despite all stars in the sky saying that Edge supports old draft syntax, aka 'never', 'always', 'origin' and 'default\n    // https://caniuse.com/#feat=referrer-policy\n    // It doesn't. And it throw exception instead of ignoring this parameter...\n    // REF: https://github.com/getsentry/raven-js/issues/1233\n    referrerPolicy: supportsReferrerPolicy() ? 'origin' : ''\n  };\n  this._ignoreOnError = 0;\n  this._isRavenInstalled = false;\n  this._originalErrorStackTraceLimit = Error.stackTraceLimit;\n  // capture references to window.console *and* all its methods first\n  // before the console plugin has a chance to monkey patch\n  this._originalConsole = _window.console || {};\n  this._originalConsoleMethods = {};\n  this._plugins = [];\n  this._startTime = now();\n  this._wrappedBuiltIns = [];\n  this._breadcrumbs = [];\n  this._lastCapturedEvent = null;\n  this._keypressTimeout;\n  this._location = _window.location;\n  this._lastHref = this._location && this._location.href;\n  this._resetBackoff();\n\n  // eslint-disable-next-line guard-for-in\n  for (var method in this._originalConsole) {\n    this._originalConsoleMethods[method] = this._originalConsole[method];\n  }\n}\n\n/*\n * The core Raven singleton\n *\n * @this {Raven}\n */\n\nRaven.prototype = {\n  // Hardcode version string so that raven source can be loaded directly via\n  // webpack (using a build step causes webpack #1617). Grunt verifies that\n  // this value matches package.json during build.\n  //   See: https://github.com/getsentry/raven-js/issues/465\n  VERSION: '3.27.2',\n\n  debug: false,\n\n  TraceKit: TraceKit, // alias to TraceKit\n\n  /*\n     * Configure Raven with a DSN and extra options\n     *\n     * @param {string} dsn The public Sentry DSN\n     * @param {object} options Set of global options [optional]\n     * @return {Raven}\n     */\n  config: function(dsn, options) {\n    var self = this;\n\n    if (self._globalServer) {\n      this._logDebug('error', 'Error: Raven has already been configured');\n      return self;\n    }\n    if (!dsn) return self;\n\n    var globalOptions = self._globalOptions;\n\n    // merge in options\n    if (options) {\n      each(options, function(key, value) {\n        // tags and extra are special and need to be put into context\n        if (key === 'tags' || key === 'extra' || key === 'user') {\n          self._globalContext[key] = value;\n        } else {\n          globalOptions[key] = value;\n        }\n      });\n    }\n\n    self.setDSN(dsn);\n\n    // \"Script error.\" is hard coded into browsers for errors that it can't read.\n    // this is the result of a script being pulled in from an external domain and CORS.\n    globalOptions.ignoreErrors.push(/^Script error\\.?$/);\n    globalOptions.ignoreErrors.push(/^Javascript error: Script error\\.? on line 0$/);\n\n    // join regexp rules into one big rule\n    globalOptions.ignoreErrors = joinRegExp(globalOptions.ignoreErrors);\n    globalOptions.ignoreUrls = globalOptions.ignoreUrls.length\n      ? joinRegExp(globalOptions.ignoreUrls)\n      : false;\n    globalOptions.whitelistUrls = globalOptions.whitelistUrls.length\n      ? joinRegExp(globalOptions.whitelistUrls)\n      : false;\n    globalOptions.includePaths = joinRegExp(globalOptions.includePaths);\n    globalOptions.maxBreadcrumbs = Math.max(\n      0,\n      Math.min(globalOptions.maxBreadcrumbs || 100, 100)\n    ); // default and hard limit is 100\n\n    var autoBreadcrumbDefaults = {\n      xhr: true,\n      console: true,\n      dom: true,\n      location: true,\n      sentry: true\n    };\n\n    var autoBreadcrumbs = globalOptions.autoBreadcrumbs;\n    if ({}.toString.call(autoBreadcrumbs) === '[object Object]') {\n      autoBreadcrumbs = objectMerge(autoBreadcrumbDefaults, autoBreadcrumbs);\n    } else if (autoBreadcrumbs !== false) {\n      autoBreadcrumbs = autoBreadcrumbDefaults;\n    }\n    globalOptions.autoBreadcrumbs = autoBreadcrumbs;\n\n    var instrumentDefaults = {\n      tryCatch: true\n    };\n\n    var instrument = globalOptions.instrument;\n    if ({}.toString.call(instrument) === '[object Object]') {\n      instrument = objectMerge(instrumentDefaults, instrument);\n    } else if (instrument !== false) {\n      instrument = instrumentDefaults;\n    }\n    globalOptions.instrument = instrument;\n\n    TraceKit.collectWindowErrors = !!globalOptions.collectWindowErrors;\n\n    // return for chaining\n    return self;\n  },\n\n  /*\n     * Installs a global window.onerror error handler\n     * to capture and report uncaught exceptions.\n     * At this point, install() is required to be called due\n     * to the way TraceKit is set up.\n     *\n     * @return {Raven}\n     */\n  install: function() {\n    var self = this;\n    if (self.isSetup() && !self._isRavenInstalled) {\n      TraceKit.report.subscribe(function() {\n        self._handleOnErrorStackInfo.apply(self, arguments);\n      });\n\n      if (self._globalOptions.captureUnhandledRejections) {\n        self._attachPromiseRejectionHandler();\n      }\n\n      self._patchFunctionToString();\n\n      if (self._globalOptions.instrument && self._globalOptions.instrument.tryCatch) {\n        self._instrumentTryCatch();\n      }\n\n      if (self._globalOptions.autoBreadcrumbs) self._instrumentBreadcrumbs();\n\n      // Install all of the plugins\n      self._drainPlugins();\n\n      self._isRavenInstalled = true;\n    }\n\n    Error.stackTraceLimit = self._globalOptions.stackTraceLimit;\n    return this;\n  },\n\n  /*\n     * Set the DSN (can be called multiple time unlike config)\n     *\n     * @param {string} dsn The public Sentry DSN\n     */\n  setDSN: function(dsn) {\n    var self = this,\n      uri = self._parseDSN(dsn),\n      lastSlash = uri.path.lastIndexOf('/'),\n      path = uri.path.substr(1, lastSlash);\n\n    self._dsn = dsn;\n    self._globalKey = uri.user;\n    self._globalSecret = uri.pass && uri.pass.substr(1);\n    self._globalProject = uri.path.substr(lastSlash + 1);\n\n    self._globalServer = self._getGlobalServer(uri);\n\n    self._globalEndpoint =\n      self._globalServer + '/' + path + 'api/' + self._globalProject + '/store/';\n\n    // Reset backoff state since we may be pointing at a\n    // new project/server\n    this._resetBackoff();\n  },\n\n  /*\n     * Wrap code within a context so Raven can capture errors\n     * reliably across domains that is executed immediately.\n     *\n     * @param {object} options A specific set of options for this context [optional]\n     * @param {function} func The callback to be immediately executed within the context\n     * @param {array} args An array of arguments to be called with the callback [optional]\n     */\n  context: function(options, func, args) {\n    if (isFunction(options)) {\n      args = func || [];\n      func = options;\n      options = {};\n    }\n\n    return this.wrap(options, func).apply(this, args);\n  },\n\n  /*\n     * Wrap code within a context and returns back a new function to be executed\n     *\n     * @param {object} options A specific set of options for this context [optional]\n     * @param {function} func The function to be wrapped in a new context\n     * @param {function} _before A function to call before the try/catch wrapper [optional, private]\n     * @return {function} The newly wrapped functions with a context\n     */\n  wrap: function(options, func, _before) {\n    var self = this;\n    // 1 argument has been passed, and it's not a function\n    // so just return it\n    if (isUndefined(func) && !isFunction(options)) {\n      return options;\n    }\n\n    // options is optional\n    if (isFunction(options)) {\n      func = options;\n      options = undefined;\n    }\n\n    // At this point, we've passed along 2 arguments, and the second one\n    // is not a function either, so we'll just return the second argument.\n    if (!isFunction(func)) {\n      return func;\n    }\n\n    // We don't wanna wrap it twice!\n    try {\n      if (func.__raven__) {\n        return func;\n      }\n\n      // If this has already been wrapped in the past, return that\n      if (func.__raven_wrapper__) {\n        return func.__raven_wrapper__;\n      }\n    } catch (e) {\n      // Just accessing custom props in some Selenium environments\n      // can cause a \"Permission denied\" exception (see raven-js#495).\n      // Bail on wrapping and return the function as-is (defers to window.onerror).\n      return func;\n    }\n\n    function wrapped() {\n      var args = [],\n        i = arguments.length,\n        deep = !options || (options && options.deep !== false);\n\n      if (_before && isFunction(_before)) {\n        _before.apply(this, arguments);\n      }\n\n      // Recursively wrap all of a function's arguments that are\n      // functions themselves.\n      while (i--) args[i] = deep ? self.wrap(options, arguments[i]) : arguments[i];\n\n      try {\n        // Attempt to invoke user-land function\n        // NOTE: If you are a Sentry user, and you are seeing this stack frame, it\n        //       means Raven caught an error invoking your application code. This is\n        //       expected behavior and NOT indicative of a bug with Raven.js.\n        return func.apply(this, args);\n      } catch (e) {\n        self._ignoreNextOnError();\n        self.captureException(e, options);\n        throw e;\n      }\n    }\n\n    // copy over properties of the old function\n    for (var property in func) {\n      if (hasKey(func, property)) {\n        wrapped[property] = func[property];\n      }\n    }\n    wrapped.prototype = func.prototype;\n\n    func.__raven_wrapper__ = wrapped;\n    // Signal that this function has been wrapped/filled already\n    // for both debugging and to prevent it to being wrapped/filled twice\n    wrapped.__raven__ = true;\n    wrapped.__orig__ = func;\n\n    return wrapped;\n  },\n\n  /**\n   * Uninstalls the global error handler.\n   *\n   * @return {Raven}\n   */\n  uninstall: function() {\n    TraceKit.report.uninstall();\n\n    this._detachPromiseRejectionHandler();\n    this._unpatchFunctionToString();\n    this._restoreBuiltIns();\n    this._restoreConsole();\n\n    Error.stackTraceLimit = this._originalErrorStackTraceLimit;\n    this._isRavenInstalled = false;\n\n    return this;\n  },\n\n  /**\n   * Callback used for `unhandledrejection` event\n   *\n   * @param {PromiseRejectionEvent} event An object containing\n   *   promise: the Promise that was rejected\n   *   reason: the value with which the Promise was rejected\n   * @return void\n   */\n  _promiseRejectionHandler: function(event) {\n    this._logDebug('debug', 'Raven caught unhandled promise rejection:', event);\n    this.captureException(event.reason, {\n      mechanism: {\n        type: 'onunhandledrejection',\n        handled: false\n      }\n    });\n  },\n\n  /**\n   * Installs the global promise rejection handler.\n   *\n   * @return {raven}\n   */\n  _attachPromiseRejectionHandler: function() {\n    this._promiseRejectionHandler = this._promiseRejectionHandler.bind(this);\n    _window.addEventListener &&\n      _window.addEventListener('unhandledrejection', this._promiseRejectionHandler);\n    return this;\n  },\n\n  /**\n   * Uninstalls the global promise rejection handler.\n   *\n   * @return {raven}\n   */\n  _detachPromiseRejectionHandler: function() {\n    _window.removeEventListener &&\n      _window.removeEventListener('unhandledrejection', this._promiseRejectionHandler);\n    return this;\n  },\n\n  /**\n   * Manually capture an exception and send it over to Sentry\n   *\n   * @param {error} ex An exception to be logged\n   * @param {object} options A specific set of options for this error [optional]\n   * @return {Raven}\n   */\n  captureException: function(ex, options) {\n    options = objectMerge({trimHeadFrames: 0}, options ? options : {});\n\n    if (isErrorEvent(ex) && ex.error) {\n      // If it is an ErrorEvent with `error` property, extract it to get actual Error\n      ex = ex.error;\n    } else if (isDOMError(ex) || isDOMException(ex)) {\n      // If it is a DOMError or DOMException (which are legacy APIs, but still supported in some browsers)\n      // then we just extract the name and message, as they don't provide anything else\n      // https://developer.mozilla.org/en-US/docs/Web/API/DOMError\n      // https://developer.mozilla.org/en-US/docs/Web/API/DOMException\n      var name = ex.name || (isDOMError(ex) ? 'DOMError' : 'DOMException');\n      var message = ex.message ? name + ': ' + ex.message : name;\n\n      return this.captureMessage(\n        message,\n        objectMerge(options, {\n          // neither DOMError or DOMException provide stack trace and we most likely wont get it this way as well\n          // but it's barely any overhead so we may at least try\n          stacktrace: true,\n          trimHeadFrames: options.trimHeadFrames + 1\n        })\n      );\n    } else if (isError(ex)) {\n      // we have a real Error object\n      ex = ex;\n    } else if (isPlainObject(ex)) {\n      // If it is plain Object, serialize it manually and extract options\n      // This will allow us to group events based on top-level keys\n      // which is much better than creating new group when any key/value change\n      options = this._getCaptureExceptionOptionsFromPlainObject(options, ex);\n      ex = new Error(options.message);\n    } else {\n      // If none of previous checks were valid, then it means that\n      // it's not a DOMError/DOMException\n      // it's not a plain Object\n      // it's not a valid ErrorEvent (one with an error property)\n      // it's not an Error\n      // So bail out and capture it as a simple message:\n      return this.captureMessage(\n        ex,\n        objectMerge(options, {\n          stacktrace: true, // if we fall back to captureMessage, default to attempting a new trace\n          trimHeadFrames: options.trimHeadFrames + 1\n        })\n      );\n    }\n\n    // Store the raw exception object for potential debugging and introspection\n    this._lastCapturedException = ex;\n\n    // TraceKit.report will re-raise any exception passed to it,\n    // which means you have to wrap it in try/catch. Instead, we\n    // can wrap it here and only re-raise if TraceKit.report\n    // raises an exception different from the one we asked to\n    // report on.\n    try {\n      var stack = TraceKit.computeStackTrace(ex);\n      this._handleStackInfo(stack, options);\n    } catch (ex1) {\n      if (ex !== ex1) {\n        throw ex1;\n      }\n    }\n\n    return this;\n  },\n\n  _getCaptureExceptionOptionsFromPlainObject: function(currentOptions, ex) {\n    var exKeys = Object.keys(ex).sort();\n    var options = objectMerge(currentOptions, {\n      message:\n        'Non-Error exception captured with keys: ' + serializeKeysForMessage(exKeys),\n      fingerprint: [md5(exKeys)],\n      extra: currentOptions.extra || {}\n    });\n    options.extra.__serialized__ = serializeException(ex);\n\n    return options;\n  },\n\n  /*\n     * Manually send a message to Sentry\n     *\n     * @param {string} msg A plain message to be captured in Sentry\n     * @param {object} options A specific set of options for this message [optional]\n     * @return {Raven}\n     */\n  captureMessage: function(msg, options) {\n    // config() automagically converts ignoreErrors from a list to a RegExp so we need to test for an\n    // early call; we'll error on the side of logging anything called before configuration since it's\n    // probably something you should see:\n    if (\n      !!this._globalOptions.ignoreErrors.test &&\n      this._globalOptions.ignoreErrors.test(msg)\n    ) {\n      return;\n    }\n\n    options = options || {};\n    msg = msg + ''; // Make sure it's actually a string\n\n    var data = objectMerge(\n      {\n        message: msg\n      },\n      options\n    );\n\n    var ex;\n    // Generate a \"synthetic\" stack trace from this point.\n    // NOTE: If you are a Sentry user, and you are seeing this stack frame, it is NOT indicative\n    //       of a bug with Raven.js. Sentry generates synthetic traces either by configuration,\n    //       or if it catches a thrown object without a \"stack\" property.\n    try {\n      throw new Error(msg);\n    } catch (ex1) {\n      ex = ex1;\n    }\n\n    // null exception name so `Error` isn't prefixed to msg\n    ex.name = null;\n    var stack = TraceKit.computeStackTrace(ex);\n\n    // stack[0] is `throw new Error(msg)` call itself, we are interested in the frame that was just before that, stack[1]\n    var initialCall = isArray(stack.stack) && stack.stack[1];\n\n    // if stack[1] is `Raven.captureException`, it means that someone passed a string to it and we redirected that call\n    // to be handled by `captureMessage`, thus `initialCall` is the 3rd one, not 2nd\n    // initialCall => captureException(string) => captureMessage(string)\n    if (initialCall && initialCall.func === 'Raven.captureException') {\n      initialCall = stack.stack[2];\n    }\n\n    var fileurl = (initialCall && initialCall.url) || '';\n\n    if (\n      !!this._globalOptions.ignoreUrls.test &&\n      this._globalOptions.ignoreUrls.test(fileurl)\n    ) {\n      return;\n    }\n\n    if (\n      !!this._globalOptions.whitelistUrls.test &&\n      !this._globalOptions.whitelistUrls.test(fileurl)\n    ) {\n      return;\n    }\n\n    // Always attempt to get stacktrace if message is empty.\n    // It's the only way to provide any helpful information to the user.\n    if (this._globalOptions.stacktrace || options.stacktrace || data.message === '') {\n      // fingerprint on msg, not stack trace (legacy behavior, could be revisited)\n      data.fingerprint = data.fingerprint == null ? msg : data.fingerprint;\n\n      options = objectMerge(\n        {\n          trimHeadFrames: 0\n        },\n        options\n      );\n      // Since we know this is a synthetic trace, the top frame (this function call)\n      // MUST be from Raven.js, so mark it for trimming\n      // We add to the trim counter so that callers can choose to trim extra frames, such\n      // as utility functions.\n      options.trimHeadFrames += 1;\n\n      var frames = this._prepareFrames(stack, options);\n      data.stacktrace = {\n        // Sentry expects frames oldest to newest\n        frames: frames.reverse()\n      };\n    }\n\n    // Make sure that fingerprint is always wrapped in an array\n    if (data.fingerprint) {\n      data.fingerprint = isArray(data.fingerprint)\n        ? data.fingerprint\n        : [data.fingerprint];\n    }\n\n    // Fire away!\n    this._send(data);\n\n    return this;\n  },\n\n  captureBreadcrumb: function(obj) {\n    var crumb = objectMerge(\n      {\n        timestamp: now() / 1000\n      },\n      obj\n    );\n\n    if (isFunction(this._globalOptions.breadcrumbCallback)) {\n      var result = this._globalOptions.breadcrumbCallback(crumb);\n\n      if (isObject(result) && !isEmptyObject(result)) {\n        crumb = result;\n      } else if (result === false) {\n        return this;\n      }\n    }\n\n    this._breadcrumbs.push(crumb);\n    if (this._breadcrumbs.length > this._globalOptions.maxBreadcrumbs) {\n      this._breadcrumbs.shift();\n    }\n    return this;\n  },\n\n  addPlugin: function(plugin /*arg1, arg2, ... argN*/) {\n    var pluginArgs = [].slice.call(arguments, 1);\n\n    this._plugins.push([plugin, pluginArgs]);\n    if (this._isRavenInstalled) {\n      this._drainPlugins();\n    }\n\n    return this;\n  },\n\n  /*\n     * Set/clear a user to be sent along with the payload.\n     *\n     * @param {object} user An object representing user data [optional]\n     * @return {Raven}\n     */\n  setUserContext: function(user) {\n    // Intentionally do not merge here since that's an unexpected behavior.\n    this._globalContext.user = user;\n\n    return this;\n  },\n\n  /*\n     * Merge extra attributes to be sent along with the payload.\n     *\n     * @param {object} extra An object representing extra data [optional]\n     * @return {Raven}\n     */\n  setExtraContext: function(extra) {\n    this._mergeContext('extra', extra);\n\n    return this;\n  },\n\n  /*\n     * Merge tags to be sent along with the payload.\n     *\n     * @param {object} tags An object representing tags [optional]\n     * @return {Raven}\n     */\n  setTagsContext: function(tags) {\n    this._mergeContext('tags', tags);\n\n    return this;\n  },\n\n  /*\n     * Clear all of the context.\n     *\n     * @return {Raven}\n     */\n  clearContext: function() {\n    this._globalContext = {};\n\n    return this;\n  },\n\n  /*\n     * Get a copy of the current context. This cannot be mutated.\n     *\n     * @return {object} copy of context\n     */\n  getContext: function() {\n    // lol javascript\n    return JSON.parse(stringify(this._globalContext));\n  },\n\n  /*\n     * Set environment of application\n     *\n     * @param {string} environment Typically something like 'production'.\n     * @return {Raven}\n     */\n  setEnvironment: function(environment) {\n    this._globalOptions.environment = environment;\n\n    return this;\n  },\n\n  /*\n     * Set release version of application\n     *\n     * @param {string} release Typically something like a git SHA to identify version\n     * @return {Raven}\n     */\n  setRelease: function(release) {\n    this._globalOptions.release = release;\n\n    return this;\n  },\n\n  /*\n     * Set the dataCallback option\n     *\n     * @param {function} callback The callback to run which allows the\n     *                            data blob to be mutated before sending\n     * @return {Raven}\n     */\n  setDataCallback: function(callback) {\n    var original = this._globalOptions.dataCallback;\n    this._globalOptions.dataCallback = keepOriginalCallback(original, callback);\n    return this;\n  },\n\n  /*\n     * Set the breadcrumbCallback option\n     *\n     * @param {function} callback The callback to run which allows filtering\n     *                            or mutating breadcrumbs\n     * @return {Raven}\n     */\n  setBreadcrumbCallback: function(callback) {\n    var original = this._globalOptions.breadcrumbCallback;\n    this._globalOptions.breadcrumbCallback = keepOriginalCallback(original, callback);\n    return this;\n  },\n\n  /*\n     * Set the shouldSendCallback option\n     *\n     * @param {function} callback The callback to run which allows\n     *                            introspecting the blob before sending\n     * @return {Raven}\n     */\n  setShouldSendCallback: function(callback) {\n    var original = this._globalOptions.shouldSendCallback;\n    this._globalOptions.shouldSendCallback = keepOriginalCallback(original, callback);\n    return this;\n  },\n\n  /**\n   * Override the default HTTP transport mechanism that transmits data\n   * to the Sentry server.\n   *\n   * @param {function} transport Function invoked instead of the default\n   *                             `makeRequest` handler.\n   *\n   * @return {Raven}\n   */\n  setTransport: function(transport) {\n    this._globalOptions.transport = transport;\n\n    return this;\n  },\n\n  /*\n     * Get the latest raw exception that was captured by Raven.\n     *\n     * @return {error}\n     */\n  lastException: function() {\n    return this._lastCapturedException;\n  },\n\n  /*\n     * Get the last event id\n     *\n     * @return {string}\n     */\n  lastEventId: function() {\n    return this._lastEventId;\n  },\n\n  /*\n     * Determine if Raven is setup and ready to go.\n     *\n     * @return {boolean}\n     */\n  isSetup: function() {\n    if (!this._hasJSON) return false; // needs JSON support\n    if (!this._globalServer) {\n      if (!this.ravenNotConfiguredError) {\n        this.ravenNotConfiguredError = true;\n        this._logDebug('error', 'Error: Raven has not been configured.');\n      }\n      return false;\n    }\n    return true;\n  },\n\n  afterLoad: function() {\n    // TODO: remove window dependence?\n\n    // Attempt to initialize Raven on load\n    var RavenConfig = _window.RavenConfig;\n    if (RavenConfig) {\n      this.config(RavenConfig.dsn, RavenConfig.config).install();\n    }\n  },\n\n  showReportDialog: function(options) {\n    if (\n      !_document // doesn't work without a document (React native)\n    )\n      return;\n\n    options = objectMerge(\n      {\n        eventId: this.lastEventId(),\n        dsn: this._dsn,\n        user: this._globalContext.user || {}\n      },\n      options\n    );\n\n    if (!options.eventId) {\n      throw new RavenConfigError('Missing eventId');\n    }\n\n    if (!options.dsn) {\n      throw new RavenConfigError('Missing DSN');\n    }\n\n    var encode = encodeURIComponent;\n    var encodedOptions = [];\n\n    for (var key in options) {\n      if (key === 'user') {\n        var user = options.user;\n        if (user.name) encodedOptions.push('name=' + encode(user.name));\n        if (user.email) encodedOptions.push('email=' + encode(user.email));\n      } else {\n        encodedOptions.push(encode(key) + '=' + encode(options[key]));\n      }\n    }\n    var globalServer = this._getGlobalServer(this._parseDSN(options.dsn));\n\n    var script = _document.createElement('script');\n    script.async = true;\n    script.src = globalServer + '/api/embed/error-page/?' + encodedOptions.join('&');\n    (_document.head || _document.body).appendChild(script);\n  },\n\n  /**** Private functions ****/\n  _ignoreNextOnError: function() {\n    var self = this;\n    this._ignoreOnError += 1;\n    setTimeout(function() {\n      // onerror should trigger before setTimeout\n      self._ignoreOnError -= 1;\n    });\n  },\n\n  _triggerEvent: function(eventType, options) {\n    // NOTE: `event` is a native browser thing, so let's avoid conflicting wiht it\n    var evt, key;\n\n    if (!this._hasDocument) return;\n\n    options = options || {};\n\n    eventType = 'raven' + eventType.substr(0, 1).toUpperCase() + eventType.substr(1);\n\n    if (_document.createEvent) {\n      evt = _document.createEvent('HTMLEvents');\n      evt.initEvent(eventType, true, true);\n    } else {\n      evt = _document.createEventObject();\n      evt.eventType = eventType;\n    }\n\n    for (key in options)\n      if (hasKey(options, key)) {\n        evt[key] = options[key];\n      }\n\n    if (_document.createEvent) {\n      // IE9 if standards\n      _document.dispatchEvent(evt);\n    } else {\n      // IE8 regardless of Quirks or Standards\n      // IE9 if quirks\n      try {\n        _document.fireEvent('on' + evt.eventType.toLowerCase(), evt);\n      } catch (e) {\n        // Do nothing\n      }\n    }\n  },\n\n  /**\n   * Wraps addEventListener to capture UI breadcrumbs\n   * @param evtName the event name (e.g. \"click\")\n   * @returns {Function}\n   * @private\n   */\n  _breadcrumbEventHandler: function(evtName) {\n    var self = this;\n    return function(evt) {\n      // reset keypress timeout; e.g. triggering a 'click' after\n      // a 'keypress' will reset the keypress debounce so that a new\n      // set of keypresses can be recorded\n      self._keypressTimeout = null;\n\n      // It's possible this handler might trigger multiple times for the same\n      // event (e.g. event propagation through node ancestors). Ignore if we've\n      // already captured the event.\n      if (self._lastCapturedEvent === evt) return;\n\n      self._lastCapturedEvent = evt;\n\n      // try/catch both:\n      // - accessing evt.target (see getsentry/raven-js#838, #768)\n      // - `htmlTreeAsString` because it's complex, and just accessing the DOM incorrectly\n      //   can throw an exception in some circumstances.\n      var target;\n      try {\n        target = htmlTreeAsString(evt.target);\n      } catch (e) {\n        target = '<unknown>';\n      }\n\n      self.captureBreadcrumb({\n        category: 'ui.' + evtName, // e.g. ui.click, ui.input\n        message: target\n      });\n    };\n  },\n\n  /**\n   * Wraps addEventListener to capture keypress UI events\n   * @returns {Function}\n   * @private\n   */\n  _keypressEventHandler: function() {\n    var self = this,\n      debounceDuration = 1000; // milliseconds\n\n    // TODO: if somehow user switches keypress target before\n    //       debounce timeout is triggered, we will only capture\n    //       a single breadcrumb from the FIRST target (acceptable?)\n    return function(evt) {\n      var target;\n      try {\n        target = evt.target;\n      } catch (e) {\n        // just accessing event properties can throw an exception in some rare circumstances\n        // see: https://github.com/getsentry/raven-js/issues/838\n        return;\n      }\n      var tagName = target && target.tagName;\n\n      // only consider keypress events on actual input elements\n      // this will disregard keypresses targeting body (e.g. tabbing\n      // through elements, hotkeys, etc)\n      if (\n        !tagName ||\n        (tagName !== 'INPUT' && tagName !== 'TEXTAREA' && !target.isContentEditable)\n      )\n        return;\n\n      // record first keypress in a series, but ignore subsequent\n      // keypresses until debounce clears\n      var timeout = self._keypressTimeout;\n      if (!timeout) {\n        self._breadcrumbEventHandler('input')(evt);\n      }\n      clearTimeout(timeout);\n      self._keypressTimeout = setTimeout(function() {\n        self._keypressTimeout = null;\n      }, debounceDuration);\n    };\n  },\n\n  /**\n   * Captures a breadcrumb of type \"navigation\", normalizing input URLs\n   * @param to the originating URL\n   * @param from the target URL\n   * @private\n   */\n  _captureUrlChange: function(from, to) {\n    var parsedLoc = parseUrl(this._location.href);\n    var parsedTo = parseUrl(to);\n    var parsedFrom = parseUrl(from);\n\n    // because onpopstate only tells you the \"new\" (to) value of location.href, and\n    // not the previous (from) value, we need to track the value of the current URL\n    // state ourselves\n    this._lastHref = to;\n\n    // Use only the path component of the URL if the URL matches the current\n    // document (almost all the time when using pushState)\n    if (parsedLoc.protocol === parsedTo.protocol && parsedLoc.host === parsedTo.host)\n      to = parsedTo.relative;\n    if (parsedLoc.protocol === parsedFrom.protocol && parsedLoc.host === parsedFrom.host)\n      from = parsedFrom.relative;\n\n    this.captureBreadcrumb({\n      category: 'navigation',\n      data: {\n        to: to,\n        from: from\n      }\n    });\n  },\n\n  _patchFunctionToString: function() {\n    var self = this;\n    self._originalFunctionToString = Function.prototype.toString;\n    // eslint-disable-next-line no-extend-native\n    Function.prototype.toString = function() {\n      if (typeof this === 'function' && this.__raven__) {\n        return self._originalFunctionToString.apply(this.__orig__, arguments);\n      }\n      return self._originalFunctionToString.apply(this, arguments);\n    };\n  },\n\n  _unpatchFunctionToString: function() {\n    if (this._originalFunctionToString) {\n      // eslint-disable-next-line no-extend-native\n      Function.prototype.toString = this._originalFunctionToString;\n    }\n  },\n\n  /**\n   * Wrap timer functions and event targets to catch errors and provide\n   * better metadata.\n   */\n  _instrumentTryCatch: function() {\n    var self = this;\n\n    var wrappedBuiltIns = self._wrappedBuiltIns;\n\n    function wrapTimeFn(orig) {\n      return function(fn, t) {\n        // preserve arity\n        // Make a copy of the arguments to prevent deoptimization\n        // https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#32-leaking-arguments\n        var args = new Array(arguments.length);\n        for (var i = 0; i < args.length; ++i) {\n          args[i] = arguments[i];\n        }\n        var originalCallback = args[0];\n        if (isFunction(originalCallback)) {\n          args[0] = self.wrap(\n            {\n              mechanism: {\n                type: 'instrument',\n                data: {function: orig.name || '<anonymous>'}\n              }\n            },\n            originalCallback\n          );\n        }\n\n        // IE < 9 doesn't support .call/.apply on setInterval/setTimeout, but it\n        // also supports only two arguments and doesn't care what this is, so we\n        // can just call the original function directly.\n        if (orig.apply) {\n          return orig.apply(this, args);\n        } else {\n          return orig(args[0], args[1]);\n        }\n      };\n    }\n\n    var autoBreadcrumbs = this._globalOptions.autoBreadcrumbs;\n\n    function wrapEventTarget(global) {\n      var proto = _window[global] && _window[global].prototype;\n      if (proto && proto.hasOwnProperty && proto.hasOwnProperty('addEventListener')) {\n        fill(\n          proto,\n          'addEventListener',\n          function(orig) {\n            return function(evtName, fn, capture, secure) {\n              // preserve arity\n              try {\n                if (fn && fn.handleEvent) {\n                  fn.handleEvent = self.wrap(\n                    {\n                      mechanism: {\n                        type: 'instrument',\n                        data: {\n                          target: global,\n                          function: 'handleEvent',\n                          handler: (fn && fn.name) || '<anonymous>'\n                        }\n                      }\n                    },\n                    fn.handleEvent\n                  );\n                }\n              } catch (err) {\n                // can sometimes get 'Permission denied to access property \"handle Event'\n              }\n\n              // More breadcrumb DOM capture ... done here and not in `_instrumentBreadcrumbs`\n              // so that we don't have more than one wrapper function\n              var before, clickHandler, keypressHandler;\n\n              if (\n                autoBreadcrumbs &&\n                autoBreadcrumbs.dom &&\n                (global === 'EventTarget' || global === 'Node')\n              ) {\n                // NOTE: generating multiple handlers per addEventListener invocation, should\n                //       revisit and verify we can just use one (almost certainly)\n                clickHandler = self._breadcrumbEventHandler('click');\n                keypressHandler = self._keypressEventHandler();\n                before = function(evt) {\n                  // need to intercept every DOM event in `before` argument, in case that\n                  // same wrapped method is re-used for different events (e.g. mousemove THEN click)\n                  // see #724\n                  if (!evt) return;\n\n                  var eventType;\n                  try {\n                    eventType = evt.type;\n                  } catch (e) {\n                    // just accessing event properties can throw an exception in some rare circumstances\n                    // see: https://github.com/getsentry/raven-js/issues/838\n                    return;\n                  }\n                  if (eventType === 'click') return clickHandler(evt);\n                  else if (eventType === 'keypress') return keypressHandler(evt);\n                };\n              }\n              return orig.call(\n                this,\n                evtName,\n                self.wrap(\n                  {\n                    mechanism: {\n                      type: 'instrument',\n                      data: {\n                        target: global,\n                        function: 'addEventListener',\n                        handler: (fn && fn.name) || '<anonymous>'\n                      }\n                    }\n                  },\n                  fn,\n                  before\n                ),\n                capture,\n                secure\n              );\n            };\n          },\n          wrappedBuiltIns\n        );\n        fill(\n          proto,\n          'removeEventListener',\n          function(orig) {\n            return function(evt, fn, capture, secure) {\n              try {\n                fn = fn && (fn.__raven_wrapper__ ? fn.__raven_wrapper__ : fn);\n              } catch (e) {\n                // ignore, accessing __raven_wrapper__ will throw in some Selenium environments\n              }\n              return orig.call(this, evt, fn, capture, secure);\n            };\n          },\n          wrappedBuiltIns\n        );\n      }\n    }\n\n    fill(_window, 'setTimeout', wrapTimeFn, wrappedBuiltIns);\n    fill(_window, 'setInterval', wrapTimeFn, wrappedBuiltIns);\n    if (_window.requestAnimationFrame) {\n      fill(\n        _window,\n        'requestAnimationFrame',\n        function(orig) {\n          return function(cb) {\n            return orig(\n              self.wrap(\n                {\n                  mechanism: {\n                    type: 'instrument',\n                    data: {\n                      function: 'requestAnimationFrame',\n                      handler: (orig && orig.name) || '<anonymous>'\n                    }\n                  }\n                },\n                cb\n              )\n            );\n          };\n        },\n        wrappedBuiltIns\n      );\n    }\n\n    // event targets borrowed from bugsnag-js:\n    // https://github.com/bugsnag/bugsnag-js/blob/master/src/bugsnag.js#L666\n    var eventTargets = [\n      'EventTarget',\n      'Window',\n      'Node',\n      'ApplicationCache',\n      'AudioTrackList',\n      'ChannelMergerNode',\n      'CryptoOperation',\n      'EventSource',\n      'FileReader',\n      'HTMLUnknownElement',\n      'IDBDatabase',\n      'IDBRequest',\n      'IDBTransaction',\n      'KeyOperation',\n      'MediaController',\n      'MessagePort',\n      'ModalWindow',\n      'Notification',\n      'SVGElementInstance',\n      'Screen',\n      'TextTrack',\n      'TextTrackCue',\n      'TextTrackList',\n      'WebSocket',\n      'WebSocketWorker',\n      'Worker',\n      'XMLHttpRequest',\n      'XMLHttpRequestEventTarget',\n      'XMLHttpRequestUpload'\n    ];\n    for (var i = 0; i < eventTargets.length; i++) {\n      wrapEventTarget(eventTargets[i]);\n    }\n  },\n\n  /**\n   * Instrument browser built-ins w/ breadcrumb capturing\n   *  - XMLHttpRequests\n   *  - DOM interactions (click/typing)\n   *  - window.location changes\n   *  - console\n   *\n   * Can be disabled or individually configured via the `autoBreadcrumbs` config option\n   */\n  _instrumentBreadcrumbs: function() {\n    var self = this;\n    var autoBreadcrumbs = this._globalOptions.autoBreadcrumbs;\n\n    var wrappedBuiltIns = self._wrappedBuiltIns;\n\n    function wrapProp(prop, xhr) {\n      if (prop in xhr && isFunction(xhr[prop])) {\n        fill(xhr, prop, function(orig) {\n          return self.wrap(\n            {\n              mechanism: {\n                type: 'instrument',\n                data: {function: prop, handler: (orig && orig.name) || '<anonymous>'}\n              }\n            },\n            orig\n          );\n        }); // intentionally don't track filled methods on XHR instances\n      }\n    }\n\n    if (autoBreadcrumbs.xhr && 'XMLHttpRequest' in _window) {\n      var xhrproto = _window.XMLHttpRequest && _window.XMLHttpRequest.prototype;\n      fill(\n        xhrproto,\n        'open',\n        function(origOpen) {\n          return function(method, url) {\n            // preserve arity\n\n            // if Sentry key appears in URL, don't capture\n            if (isString(url) && url.indexOf(self._globalKey) === -1) {\n              this.__raven_xhr = {\n                method: method,\n                url: url,\n                status_code: null\n              };\n            }\n\n            return origOpen.apply(this, arguments);\n          };\n        },\n        wrappedBuiltIns\n      );\n\n      fill(\n        xhrproto,\n        'send',\n        function(origSend) {\n          return function() {\n            // preserve arity\n            var xhr = this;\n\n            function onreadystatechangeHandler() {\n              if (xhr.__raven_xhr && xhr.readyState === 4) {\n                try {\n                  // touching statusCode in some platforms throws\n                  // an exception\n                  xhr.__raven_xhr.status_code = xhr.status;\n                } catch (e) {\n                  /* do nothing */\n                }\n\n                self.captureBreadcrumb({\n                  type: 'http',\n                  category: 'xhr',\n                  data: xhr.__raven_xhr\n                });\n              }\n            }\n\n            var props = ['onload', 'onerror', 'onprogress'];\n            for (var j = 0; j < props.length; j++) {\n              wrapProp(props[j], xhr);\n            }\n\n            if ('onreadystatechange' in xhr && isFunction(xhr.onreadystatechange)) {\n              fill(\n                xhr,\n                'onreadystatechange',\n                function(orig) {\n                  return self.wrap(\n                    {\n                      mechanism: {\n                        type: 'instrument',\n                        data: {\n                          function: 'onreadystatechange',\n                          handler: (orig && orig.name) || '<anonymous>'\n                        }\n                      }\n                    },\n                    orig,\n                    onreadystatechangeHandler\n                  );\n                } /* intentionally don't track this instrumentation */\n              );\n            } else {\n              // if onreadystatechange wasn't actually set by the page on this xhr, we\n              // are free to set our own and capture the breadcrumb\n              xhr.onreadystatechange = onreadystatechangeHandler;\n            }\n\n            return origSend.apply(this, arguments);\n          };\n        },\n        wrappedBuiltIns\n      );\n    }\n\n    if (autoBreadcrumbs.xhr && supportsFetch()) {\n      fill(\n        _window,\n        'fetch',\n        function(origFetch) {\n          return function() {\n            // preserve arity\n            // Make a copy of the arguments to prevent deoptimization\n            // https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#32-leaking-arguments\n            var args = new Array(arguments.length);\n            for (var i = 0; i < args.length; ++i) {\n              args[i] = arguments[i];\n            }\n\n            var fetchInput = args[0];\n            var method = 'GET';\n            var url;\n\n            if (typeof fetchInput === 'string') {\n              url = fetchInput;\n            } else if ('Request' in _window && fetchInput instanceof _window.Request) {\n              url = fetchInput.url;\n              if (fetchInput.method) {\n                method = fetchInput.method;\n              }\n            } else {\n              url = '' + fetchInput;\n            }\n\n            // if Sentry key appears in URL, don't capture, as it's our own request\n            if (url.indexOf(self._globalKey) !== -1) {\n              return origFetch.apply(this, args);\n            }\n\n            if (args[1] && args[1].method) {\n              method = args[1].method;\n            }\n\n            var fetchData = {\n              method: method,\n              url: url,\n              status_code: null\n            };\n\n            return origFetch\n              .apply(this, args)\n              .then(function(response) {\n                fetchData.status_code = response.status;\n\n                self.captureBreadcrumb({\n                  type: 'http',\n                  category: 'fetch',\n                  data: fetchData\n                });\n\n                return response;\n              })\n              ['catch'](function(err) {\n                // if there is an error performing the request\n                self.captureBreadcrumb({\n                  type: 'http',\n                  category: 'fetch',\n                  data: fetchData,\n                  level: 'error'\n                });\n\n                throw err;\n              });\n          };\n        },\n        wrappedBuiltIns\n      );\n    }\n\n    // Capture breadcrumbs from any click that is unhandled / bubbled up all the way\n    // to the document. Do this before we instrument addEventListener.\n    if (autoBreadcrumbs.dom && this._hasDocument) {\n      if (_document.addEventListener) {\n        _document.addEventListener('click', self._breadcrumbEventHandler('click'), false);\n        _document.addEventListener('keypress', self._keypressEventHandler(), false);\n      } else if (_document.attachEvent) {\n        // IE8 Compatibility\n        _document.attachEvent('onclick', self._breadcrumbEventHandler('click'));\n        _document.attachEvent('onkeypress', self._keypressEventHandler());\n      }\n    }\n\n    // record navigation (URL) changes\n    // NOTE: in Chrome App environment, touching history.pushState, *even inside\n    //       a try/catch block*, will cause Chrome to output an error to console.error\n    // borrowed from: https://github.com/angular/angular.js/pull/13945/files\n    var chrome = _window.chrome;\n    var isChromePackagedApp = chrome && chrome.app && chrome.app.runtime;\n    var hasPushAndReplaceState =\n      !isChromePackagedApp &&\n      _window.history &&\n      _window.history.pushState &&\n      _window.history.replaceState;\n    if (autoBreadcrumbs.location && hasPushAndReplaceState) {\n      // TODO: remove onpopstate handler on uninstall()\n      var oldOnPopState = _window.onpopstate;\n      _window.onpopstate = function() {\n        var currentHref = self._location.href;\n        self._captureUrlChange(self._lastHref, currentHref);\n\n        if (oldOnPopState) {\n          return oldOnPopState.apply(this, arguments);\n        }\n      };\n\n      var historyReplacementFunction = function(origHistFunction) {\n        // note history.pushState.length is 0; intentionally not declaring\n        // params to preserve 0 arity\n        return function(/* state, title, url */) {\n          var url = arguments.length > 2 ? arguments[2] : undefined;\n\n          // url argument is optional\n          if (url) {\n            // coerce to string (this is what pushState does)\n            self._captureUrlChange(self._lastHref, url + '');\n          }\n\n          return origHistFunction.apply(this, arguments);\n        };\n      };\n\n      fill(_window.history, 'pushState', historyReplacementFunction, wrappedBuiltIns);\n      fill(_window.history, 'replaceState', historyReplacementFunction, wrappedBuiltIns);\n    }\n\n    if (autoBreadcrumbs.console && 'console' in _window && console.log) {\n      // console\n      var consoleMethodCallback = function(msg, data) {\n        self.captureBreadcrumb({\n          message: msg,\n          level: data.level,\n          category: 'console'\n        });\n      };\n\n      each(['debug', 'info', 'warn', 'error', 'log'], function(_, level) {\n        wrapConsoleMethod(console, level, consoleMethodCallback);\n      });\n    }\n  },\n\n  _restoreBuiltIns: function() {\n    // restore any wrapped builtins\n    var builtin;\n    while (this._wrappedBuiltIns.length) {\n      builtin = this._wrappedBuiltIns.shift();\n\n      var obj = builtin[0],\n        name = builtin[1],\n        orig = builtin[2];\n\n      obj[name] = orig;\n    }\n  },\n\n  _restoreConsole: function() {\n    // eslint-disable-next-line guard-for-in\n    for (var method in this._originalConsoleMethods) {\n      this._originalConsole[method] = this._originalConsoleMethods[method];\n    }\n  },\n\n  _drainPlugins: function() {\n    var self = this;\n\n    // FIX ME TODO\n    each(this._plugins, function(_, plugin) {\n      var installer = plugin[0];\n      var args = plugin[1];\n      installer.apply(self, [self].concat(args));\n    });\n  },\n\n  _parseDSN: function(str) {\n    var m = dsnPattern.exec(str),\n      dsn = {},\n      i = 7;\n\n    try {\n      while (i--) dsn[dsnKeys[i]] = m[i] || '';\n    } catch (e) {\n      throw new RavenConfigError('Invalid DSN: ' + str);\n    }\n\n    if (dsn.pass && !this._globalOptions.allowSecretKey) {\n      throw new RavenConfigError(\n        'Do not specify your secret key in the DSN. See: http://bit.ly/raven-secret-key'\n      );\n    }\n\n    return dsn;\n  },\n\n  _getGlobalServer: function(uri) {\n    // assemble the endpoint from the uri pieces\n    var globalServer = '//' + uri.host + (uri.port ? ':' + uri.port : '');\n\n    if (uri.protocol) {\n      globalServer = uri.protocol + ':' + globalServer;\n    }\n    return globalServer;\n  },\n\n  _handleOnErrorStackInfo: function(stackInfo, options) {\n    options = options || {};\n    options.mechanism = options.mechanism || {\n      type: 'onerror',\n      handled: false\n    };\n\n    // if we are intentionally ignoring errors via onerror, bail out\n    if (!this._ignoreOnError) {\n      this._handleStackInfo(stackInfo, options);\n    }\n  },\n\n  _handleStackInfo: function(stackInfo, options) {\n    var frames = this._prepareFrames(stackInfo, options);\n\n    this._triggerEvent('handle', {\n      stackInfo: stackInfo,\n      options: options\n    });\n\n    this._processException(\n      stackInfo.name,\n      stackInfo.message,\n      stackInfo.url,\n      stackInfo.lineno,\n      frames,\n      options\n    );\n  },\n\n  _prepareFrames: function(stackInfo, options) {\n    var self = this;\n    var frames = [];\n    if (stackInfo.stack && stackInfo.stack.length) {\n      each(stackInfo.stack, function(i, stack) {\n        var frame = self._normalizeFrame(stack, stackInfo.url);\n        if (frame) {\n          frames.push(frame);\n        }\n      });\n\n      // e.g. frames captured via captureMessage throw\n      if (options && options.trimHeadFrames) {\n        for (var j = 0; j < options.trimHeadFrames && j < frames.length; j++) {\n          frames[j].in_app = false;\n        }\n      }\n    }\n    frames = frames.slice(0, this._globalOptions.stackTraceLimit);\n    return frames;\n  },\n\n  _normalizeFrame: function(frame, stackInfoUrl) {\n    // normalize the frames data\n    var normalized = {\n      filename: frame.url,\n      lineno: frame.line,\n      colno: frame.column,\n      function: frame.func || '?'\n    };\n\n    // Case when we don't have any information about the error\n    // E.g. throwing a string or raw object, instead of an `Error` in Firefox\n    // Generating synthetic error doesn't add any value here\n    //\n    // We should probably somehow let a user know that they should fix their code\n    if (!frame.url) {\n      normalized.filename = stackInfoUrl; // fallback to whole stacks url from onerror handler\n    }\n\n    normalized.in_app = !// determine if an exception came from outside of our app\n    // first we check the global includePaths list.\n    (\n      (!!this._globalOptions.includePaths.test &&\n        !this._globalOptions.includePaths.test(normalized.filename)) ||\n      // Now we check for fun, if the function name is Raven or TraceKit\n      /(Raven|TraceKit)\\./.test(normalized['function']) ||\n      // finally, we do a last ditch effort and check for raven.min.js\n      /raven\\.(min\\.)?js$/.test(normalized.filename)\n    );\n\n    return normalized;\n  },\n\n  _processException: function(type, message, fileurl, lineno, frames, options) {\n    var prefixedMessage = (type ? type + ': ' : '') + (message || '');\n    if (\n      !!this._globalOptions.ignoreErrors.test &&\n      (this._globalOptions.ignoreErrors.test(message) ||\n        this._globalOptions.ignoreErrors.test(prefixedMessage))\n    ) {\n      return;\n    }\n\n    var stacktrace;\n\n    if (frames && frames.length) {\n      fileurl = frames[0].filename || fileurl;\n      // Sentry expects frames oldest to newest\n      // and JS sends them as newest to oldest\n      frames.reverse();\n      stacktrace = {frames: frames};\n    } else if (fileurl) {\n      stacktrace = {\n        frames: [\n          {\n            filename: fileurl,\n            lineno: lineno,\n            in_app: true\n          }\n        ]\n      };\n    }\n\n    if (\n      !!this._globalOptions.ignoreUrls.test &&\n      this._globalOptions.ignoreUrls.test(fileurl)\n    ) {\n      return;\n    }\n\n    if (\n      !!this._globalOptions.whitelistUrls.test &&\n      !this._globalOptions.whitelistUrls.test(fileurl)\n    ) {\n      return;\n    }\n\n    var data = objectMerge(\n      {\n        // sentry.interfaces.Exception\n        exception: {\n          values: [\n            {\n              type: type,\n              value: message,\n              stacktrace: stacktrace\n            }\n          ]\n        },\n        transaction: fileurl\n      },\n      options\n    );\n\n    var ex = data.exception.values[0];\n    if (ex.type == null && ex.value === '') {\n      ex.value = 'Unrecoverable error caught';\n    }\n\n    // Move mechanism from options to exception interface\n    // We do this, as requiring user to pass `{exception:{mechanism:{ ... }}}` would be\n    // too much\n    if (!data.exception.mechanism && data.mechanism) {\n      data.exception.mechanism = data.mechanism;\n      delete data.mechanism;\n    }\n\n    data.exception.mechanism = objectMerge(\n      {\n        type: 'generic',\n        handled: true\n      },\n      data.exception.mechanism || {}\n    );\n\n    // Fire away!\n    this._send(data);\n  },\n\n  _trimPacket: function(data) {\n    // For now, we only want to truncate the two different messages\n    // but this could/should be expanded to just trim everything\n    var max = this._globalOptions.maxMessageLength;\n    if (data.message) {\n      data.message = truncate(data.message, max);\n    }\n    if (data.exception) {\n      var exception = data.exception.values[0];\n      exception.value = truncate(exception.value, max);\n    }\n\n    var request = data.request;\n    if (request) {\n      if (request.url) {\n        request.url = truncate(request.url, this._globalOptions.maxUrlLength);\n      }\n      if (request.Referer) {\n        request.Referer = truncate(request.Referer, this._globalOptions.maxUrlLength);\n      }\n    }\n\n    if (data.breadcrumbs && data.breadcrumbs.values)\n      this._trimBreadcrumbs(data.breadcrumbs);\n\n    return data;\n  },\n\n  /**\n   * Truncate breadcrumb values (right now just URLs)\n   */\n  _trimBreadcrumbs: function(breadcrumbs) {\n    // known breadcrumb properties with urls\n    // TODO: also consider arbitrary prop values that start with (https?)?://\n    var urlProps = ['to', 'from', 'url'],\n      urlProp,\n      crumb,\n      data;\n\n    for (var i = 0; i < breadcrumbs.values.length; ++i) {\n      crumb = breadcrumbs.values[i];\n      if (\n        !crumb.hasOwnProperty('data') ||\n        !isObject(crumb.data) ||\n        objectFrozen(crumb.data)\n      )\n        continue;\n\n      data = objectMerge({}, crumb.data);\n      for (var j = 0; j < urlProps.length; ++j) {\n        urlProp = urlProps[j];\n        if (data.hasOwnProperty(urlProp) && data[urlProp]) {\n          data[urlProp] = truncate(data[urlProp], this._globalOptions.maxUrlLength);\n        }\n      }\n      breadcrumbs.values[i].data = data;\n    }\n  },\n\n  _getHttpData: function() {\n    if (!this._hasNavigator && !this._hasDocument) return;\n    var httpData = {};\n\n    if (this._hasNavigator && _navigator.userAgent) {\n      httpData.headers = {\n        'User-Agent': _navigator.userAgent\n      };\n    }\n\n    // Check in `window` instead of `document`, as we may be in ServiceWorker environment\n    if (_window.location && _window.location.href) {\n      httpData.url = _window.location.href;\n    }\n\n    if (this._hasDocument && _document.referrer) {\n      if (!httpData.headers) httpData.headers = {};\n      httpData.headers.Referer = _document.referrer;\n    }\n\n    return httpData;\n  },\n\n  _resetBackoff: function() {\n    this._backoffDuration = 0;\n    this._backoffStart = null;\n  },\n\n  _shouldBackoff: function() {\n    return this._backoffDuration && now() - this._backoffStart < this._backoffDuration;\n  },\n\n  /**\n   * Returns true if the in-process data payload matches the signature\n   * of the previously-sent data\n   *\n   * NOTE: This has to be done at this level because TraceKit can generate\n   *       data from window.onerror WITHOUT an exception object (IE8, IE9,\n   *       other old browsers). This can take the form of an \"exception\"\n   *       data object with a single frame (derived from the onerror args).\n   */\n  _isRepeatData: function(current) {\n    var last = this._lastData;\n\n    if (\n      !last ||\n      current.message !== last.message || // defined for captureMessage\n      current.transaction !== last.transaction // defined for captureException/onerror\n    )\n      return false;\n\n    // Stacktrace interface (i.e. from captureMessage)\n    if (current.stacktrace || last.stacktrace) {\n      return isSameStacktrace(current.stacktrace, last.stacktrace);\n    } else if (current.exception || last.exception) {\n      // Exception interface (i.e. from captureException/onerror)\n      return isSameException(current.exception, last.exception);\n    } else if (current.fingerprint || last.fingerprint) {\n      return Boolean(current.fingerprint && last.fingerprint) &&\n        JSON.stringify(current.fingerprint) === JSON.stringify(last.fingerprint)\n    }\n\n    return true;\n  },\n\n  _setBackoffState: function(request) {\n    // If we are already in a backoff state, don't change anything\n    if (this._shouldBackoff()) {\n      return;\n    }\n\n    var status = request.status;\n\n    // 400 - project_id doesn't exist or some other fatal\n    // 401 - invalid/revoked dsn\n    // 429 - too many requests\n    if (!(status === 400 || status === 401 || status === 429)) return;\n\n    var retry;\n    try {\n      // If Retry-After is not in Access-Control-Expose-Headers, most\n      // browsers will throw an exception trying to access it\n      if (supportsFetch()) {\n        retry = request.headers.get('Retry-After');\n      } else {\n        retry = request.getResponseHeader('Retry-After');\n      }\n\n      // Retry-After is returned in seconds\n      retry = parseInt(retry, 10) * 1000;\n    } catch (e) {\n      /* eslint no-empty:0 */\n    }\n\n    this._backoffDuration = retry\n      ? // If Sentry server returned a Retry-After value, use it\n        retry\n      : // Otherwise, double the last backoff duration (starts at 1 sec)\n        this._backoffDuration * 2 || 1000;\n\n    this._backoffStart = now();\n  },\n\n  _send: function(data) {\n    var globalOptions = this._globalOptions;\n\n    var baseData = {\n        project: this._globalProject,\n        logger: globalOptions.logger,\n        platform: 'javascript'\n      },\n      httpData = this._getHttpData();\n\n    if (httpData) {\n      baseData.request = httpData;\n    }\n\n    // HACK: delete `trimHeadFrames` to prevent from appearing in outbound payload\n    if (data.trimHeadFrames) delete data.trimHeadFrames;\n\n    data = objectMerge(baseData, data);\n\n    // Merge in the tags and extra separately since objectMerge doesn't handle a deep merge\n    data.tags = objectMerge(objectMerge({}, this._globalContext.tags), data.tags);\n    data.extra = objectMerge(objectMerge({}, this._globalContext.extra), data.extra);\n\n    // Send along our own collected metadata with extra\n    data.extra['session:duration'] = now() - this._startTime;\n\n    if (this._breadcrumbs && this._breadcrumbs.length > 0) {\n      // intentionally make shallow copy so that additions\n      // to breadcrumbs aren't accidentally sent in this request\n      data.breadcrumbs = {\n        values: [].slice.call(this._breadcrumbs, 0)\n      };\n    }\n\n    if (this._globalContext.user) {\n      // sentry.interfaces.User\n      data.user = this._globalContext.user;\n    }\n\n    // Include the environment if it's defined in globalOptions\n    if (globalOptions.environment) data.environment = globalOptions.environment;\n\n    // Include the release if it's defined in globalOptions\n    if (globalOptions.release) data.release = globalOptions.release;\n\n    // Include server_name if it's defined in globalOptions\n    if (globalOptions.serverName) data.server_name = globalOptions.serverName;\n\n    data = this._sanitizeData(data);\n\n    // Cleanup empty properties before sending them to the server\n    Object.keys(data).forEach(function(key) {\n      if (data[key] == null || data[key] === '' || isEmptyObject(data[key])) {\n        delete data[key];\n      }\n    });\n\n    if (isFunction(globalOptions.dataCallback)) {\n      data = globalOptions.dataCallback(data) || data;\n    }\n\n    // Why??????????\n    if (!data || isEmptyObject(data)) {\n      return;\n    }\n\n    // Check if the request should be filtered or not\n    if (\n      isFunction(globalOptions.shouldSendCallback) &&\n      !globalOptions.shouldSendCallback(data)\n    ) {\n      return;\n    }\n\n    // Backoff state: Sentry server previously responded w/ an error (e.g. 429 - too many requests),\n    // so drop requests until \"cool-off\" period has elapsed.\n    if (this._shouldBackoff()) {\n      this._logDebug('warn', 'Raven dropped error due to backoff: ', data);\n      return;\n    }\n\n    if (typeof globalOptions.sampleRate === 'number') {\n      if (Math.random() < globalOptions.sampleRate) {\n        this._sendProcessedPayload(data);\n      }\n    } else {\n      this._sendProcessedPayload(data);\n    }\n  },\n\n  _sanitizeData: function(data) {\n    return sanitize(data, this._globalOptions.sanitizeKeys);\n  },\n\n  _getUuid: function() {\n    return uuid4();\n  },\n\n  _sendProcessedPayload: function(data, callback) {\n    var self = this;\n    var globalOptions = this._globalOptions;\n\n    if (!this.isSetup()) return;\n\n    // Try and clean up the packet before sending by truncating long values\n    data = this._trimPacket(data);\n\n    // ideally duplicate error testing should occur *before* dataCallback/shouldSendCallback,\n    // but this would require copying an un-truncated copy of the data packet, which can be\n    // arbitrarily deep (extra_data) -- could be worthwhile? will revisit\n    if (!this._globalOptions.allowDuplicates && this._isRepeatData(data)) {\n      this._logDebug('warn', 'Raven dropped repeat event: ', data);\n      return;\n    }\n\n    // Send along an event_id if not explicitly passed.\n    // This event_id can be used to reference the error within Sentry itself.\n    // Set lastEventId after we know the error should actually be sent\n    this._lastEventId = data.event_id || (data.event_id = this._getUuid());\n\n    // Store outbound payload after trim\n    this._lastData = data;\n\n    this._logDebug('debug', 'Raven about to send:', data);\n\n    var auth = {\n      sentry_version: '7',\n      sentry_client: 'raven-js/' + this.VERSION,\n      sentry_key: this._globalKey\n    };\n\n    if (this._globalSecret) {\n      auth.sentry_secret = this._globalSecret;\n    }\n\n    var exception = data.exception && data.exception.values[0];\n\n    // only capture 'sentry' breadcrumb is autoBreadcrumbs is truthy\n    if (\n      this._globalOptions.autoBreadcrumbs &&\n      this._globalOptions.autoBreadcrumbs.sentry\n    ) {\n      this.captureBreadcrumb({\n        category: 'sentry',\n        message: exception\n          ? (exception.type ? exception.type + ': ' : '') + exception.value\n          : data.message,\n        event_id: data.event_id,\n        level: data.level || 'error' // presume error unless specified\n      });\n    }\n\n    var url = this._globalEndpoint;\n    (globalOptions.transport || this._makeRequest).call(this, {\n      url: url,\n      auth: auth,\n      data: data,\n      options: globalOptions,\n      onSuccess: function success() {\n        self._resetBackoff();\n\n        self._triggerEvent('success', {\n          data: data,\n          src: url\n        });\n        callback && callback();\n      },\n      onError: function failure(error) {\n        self._logDebug('error', 'Raven transport failed to send: ', error);\n\n        if (error.request) {\n          self._setBackoffState(error.request);\n        }\n\n        self._triggerEvent('failure', {\n          data: data,\n          src: url\n        });\n        error = error || new Error('Raven send failed (no additional details provided)');\n        callback && callback(error);\n      }\n    });\n  },\n\n  _makeRequest: function(opts) {\n    // Auth is intentionally sent as part of query string (NOT as custom HTTP header) to avoid preflight CORS requests\n    var url = opts.url + '?' + urlencode(opts.auth);\n\n    var evaluatedHeaders = null;\n    var evaluatedFetchParameters = {};\n\n    if (opts.options.headers) {\n      evaluatedHeaders = this._evaluateHash(opts.options.headers);\n    }\n\n    if (opts.options.fetchParameters) {\n      evaluatedFetchParameters = this._evaluateHash(opts.options.fetchParameters);\n    }\n\n    if (supportsFetch()) {\n      evaluatedFetchParameters.body = stringify(opts.data);\n\n      var defaultFetchOptions = objectMerge({}, this._fetchDefaults);\n      var fetchOptions = objectMerge(defaultFetchOptions, evaluatedFetchParameters);\n\n      if (evaluatedHeaders) {\n        fetchOptions.headers = evaluatedHeaders;\n      }\n\n      return _window\n        .fetch(url, fetchOptions)\n        .then(function(response) {\n          if (response.ok) {\n            opts.onSuccess && opts.onSuccess();\n          } else {\n            var error = new Error('Sentry error code: ' + response.status);\n            // It's called request only to keep compatibility with XHR interface\n            // and not add more redundant checks in setBackoffState method\n            error.request = response;\n            opts.onError && opts.onError(error);\n          }\n        })\n        ['catch'](function() {\n          opts.onError &&\n            opts.onError(new Error('Sentry error code: network unavailable'));\n        });\n    }\n\n    var request = _window.XMLHttpRequest && new _window.XMLHttpRequest();\n    if (!request) return;\n\n    // if browser doesn't support CORS (e.g. IE7), we are out of luck\n    var hasCORS = 'withCredentials' in request || typeof XDomainRequest !== 'undefined';\n\n    if (!hasCORS) return;\n\n    if ('withCredentials' in request) {\n      request.onreadystatechange = function() {\n        if (request.readyState !== 4) {\n          return;\n        } else if (request.status === 200) {\n          opts.onSuccess && opts.onSuccess();\n        } else if (opts.onError) {\n          var err = new Error('Sentry error code: ' + request.status);\n          err.request = request;\n          opts.onError(err);\n        }\n      };\n    } else {\n      request = new XDomainRequest();\n      // xdomainrequest cannot go http -> https (or vice versa),\n      // so always use protocol relative\n      url = url.replace(/^https?:/, '');\n\n      // onreadystatechange not supported by XDomainRequest\n      if (opts.onSuccess) {\n        request.onload = opts.onSuccess;\n      }\n      if (opts.onError) {\n        request.onerror = function() {\n          var err = new Error('Sentry error code: XDomainRequest');\n          err.request = request;\n          opts.onError(err);\n        };\n      }\n    }\n\n    request.open('POST', url);\n\n    if (evaluatedHeaders) {\n      each(evaluatedHeaders, function(key, value) {\n        request.setRequestHeader(key, value);\n      });\n    }\n\n    request.send(stringify(opts.data));\n  },\n\n  _evaluateHash: function(hash) {\n    var evaluated = {};\n\n    for (var key in hash) {\n      if (hash.hasOwnProperty(key)) {\n        var value = hash[key];\n        evaluated[key] = typeof value === 'function' ? value() : value;\n      }\n    }\n\n    return evaluated;\n  },\n\n  _logDebug: function(level) {\n    // We allow `Raven.debug` and `Raven.config(DSN, { debug: true })` to not make backward incompatible API change\n    if (\n      this._originalConsoleMethods[level] &&\n      (this.debug || this._globalOptions.debug)\n    ) {\n      // In IE<10 console methods do not have their own 'apply' method\n      Function.prototype.apply.call(\n        this._originalConsoleMethods[level],\n        this._originalConsole,\n        [].slice.call(arguments, 1)\n      );\n    }\n  },\n\n  _mergeContext: function(key, context) {\n    if (isUndefined(context)) {\n      delete this._globalContext[key];\n    } else {\n      this._globalContext[key] = objectMerge(this._globalContext[key] || {}, context);\n    }\n  }\n};\n\n// Deprecations\nRaven.prototype.setUser = Raven.prototype.setUserContext;\nRaven.prototype.setReleaseContext = Raven.prototype.setRelease;\n\nmodule.exports = Raven;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.isArray = (function () { return Array.isArray || (function (x) { return x && typeof x.length === 'number'; }); })();\n//# sourceMappingURL=isArray.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar _enable_super_gross_mode_that_will_cause_bad_things = false;\nexports.config = {\n    Promise: undefined,\n    set useDeprecatedSynchronousErrorHandling(value) {\n        if (value) {\n            var error = new Error();\n            console.warn('DEPRECATED! RxJS was set to use deprecated synchronous error handling behavior by code at: \\n' + error.stack);\n        }\n        else if (_enable_super_gross_mode_that_will_cause_bad_things) {\n            console.log('RxJS: Back to a better error behavior. Thank you. <3');\n        }\n        _enable_super_gross_mode_that_will_cause_bad_things = value;\n    },\n    get useDeprecatedSynchronousErrorHandling() {\n        return _enable_super_gross_mode_that_will_cause_bad_things;\n    },\n};\n//# sourceMappingURL=config.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.rxSubscriber = (function () {\n    return typeof Symbol === 'function'\n        ? Symbol('rxSubscriber')\n        : '@@rxSubscriber_' + Math.random();\n})();\nexports.$$rxSubscriber = exports.rxSubscriber;\n//# sourceMappingURL=rxSubscriber.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nfunction isFunction(x) {\n    return typeof x === 'function';\n}\nexports.isFunction = isFunction;\n//# sourceMappingURL=isFunction.js.map","function RavenConfigError(message) {\n  this.name = 'RavenConfigError';\n  this.message = message;\n}\nRavenConfigError.prototype = new Error();\nRavenConfigError.prototype.constructor = RavenConfigError;\n\nmodule.exports = RavenConfigError;\n","var stringify = require('../vendor/json-stringify-safe/stringify');\n\nvar _window =\n  typeof window !== 'undefined'\n    ? window\n    : typeof global !== 'undefined'\n      ? global\n      : typeof self !== 'undefined'\n        ? self\n        : {};\n\nfunction isObject(what) {\n  return typeof what === 'object' && what !== null;\n}\n\n// Yanked from https://git.io/vS8DV re-used under CC0\n// with some tiny modifications\nfunction isError(value) {\n  switch (Object.prototype.toString.call(value)) {\n    case '[object Error]':\n      return true;\n    case '[object Exception]':\n      return true;\n    case '[object DOMException]':\n      return true;\n    default:\n      return value instanceof Error;\n  }\n}\n\nfunction isErrorEvent(value) {\n  return Object.prototype.toString.call(value) === '[object ErrorEvent]';\n}\n\nfunction isDOMError(value) {\n  return Object.prototype.toString.call(value) === '[object DOMError]';\n}\n\nfunction isDOMException(value) {\n  return Object.prototype.toString.call(value) === '[object DOMException]';\n}\n\nfunction isUndefined(what) {\n  return what === void 0;\n}\n\nfunction isFunction(what) {\n  return typeof what === 'function';\n}\n\nfunction isPlainObject(what) {\n  return Object.prototype.toString.call(what) === '[object Object]';\n}\n\nfunction isString(what) {\n  return Object.prototype.toString.call(what) === '[object String]';\n}\n\nfunction isArray(what) {\n  return Object.prototype.toString.call(what) === '[object Array]';\n}\n\nfunction isEmptyObject(what) {\n  if (!isPlainObject(what)) return false;\n\n  for (var _ in what) {\n    if (what.hasOwnProperty(_)) {\n      return false;\n    }\n  }\n  return true;\n}\n\nfunction supportsErrorEvent() {\n  try {\n    new ErrorEvent(''); // eslint-disable-line no-new\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\nfunction supportsDOMError() {\n  try {\n    new DOMError(''); // eslint-disable-line no-new\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\nfunction supportsDOMException() {\n  try {\n    new DOMException(''); // eslint-disable-line no-new\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\nfunction supportsFetch() {\n  if (!('fetch' in _window)) return false;\n\n  try {\n    new Headers(); // eslint-disable-line no-new\n    new Request(''); // eslint-disable-line no-new\n    new Response(); // eslint-disable-line no-new\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\n// Despite all stars in the sky saying that Edge supports old draft syntax, aka 'never', 'always', 'origin' and 'default\n// https://caniuse.com/#feat=referrer-policy\n// It doesn't. And it throw exception instead of ignoring this parameter...\n// REF: https://github.com/getsentry/raven-js/issues/1233\nfunction supportsReferrerPolicy() {\n  if (!supportsFetch()) return false;\n\n  try {\n    // eslint-disable-next-line no-new\n    new Request('pickleRick', {\n      referrerPolicy: 'origin'\n    });\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\nfunction supportsPromiseRejectionEvent() {\n  return typeof PromiseRejectionEvent === 'function';\n}\n\nfunction wrappedCallback(callback) {\n  function dataCallback(data, original) {\n    var normalizedData = callback(data) || data;\n    if (original) {\n      return original(normalizedData) || normalizedData;\n    }\n    return normalizedData;\n  }\n\n  return dataCallback;\n}\n\nfunction each(obj, callback) {\n  var i, j;\n\n  if (isUndefined(obj.length)) {\n    for (i in obj) {\n      if (hasKey(obj, i)) {\n        callback.call(null, i, obj[i]);\n      }\n    }\n  } else {\n    j = obj.length;\n    if (j) {\n      for (i = 0; i < j; i++) {\n        callback.call(null, i, obj[i]);\n      }\n    }\n  }\n}\n\nfunction objectMerge(obj1, obj2) {\n  if (!obj2) {\n    return obj1;\n  }\n  each(obj2, function(key, value) {\n    obj1[key] = value;\n  });\n  return obj1;\n}\n\n/**\n * This function is only used for react-native.\n * react-native freezes object that have already been sent over the\n * js bridge. We need this function in order to check if the object is frozen.\n * So it's ok that objectFrozen returns false if Object.isFrozen is not\n * supported because it's not relevant for other \"platforms\". See related issue:\n * https://github.com/getsentry/react-native-sentry/issues/57\n */\nfunction objectFrozen(obj) {\n  if (!Object.isFrozen) {\n    return false;\n  }\n  return Object.isFrozen(obj);\n}\n\nfunction truncate(str, max) {\n  if (typeof max !== 'number') {\n    throw new Error('2nd argument to `truncate` function should be a number');\n  }\n  if (typeof str !== 'string' || max === 0) {\n    return str;\n  }\n  return str.length <= max ? str : str.substr(0, max) + '\\u2026';\n}\n\n/**\n * hasKey, a better form of hasOwnProperty\n * Example: hasKey(MainHostObject, property) === true/false\n *\n * @param {Object} host object to check property\n * @param {string} key to check\n */\nfunction hasKey(object, key) {\n  return Object.prototype.hasOwnProperty.call(object, key);\n}\n\nfunction joinRegExp(patterns) {\n  // Combine an array of regular expressions and strings into one large regexp\n  // Be mad.\n  var sources = [],\n    i = 0,\n    len = patterns.length,\n    pattern;\n\n  for (; i < len; i++) {\n    pattern = patterns[i];\n    if (isString(pattern)) {\n      // If it's a string, we need to escape it\n      // Taken from: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions\n      sources.push(pattern.replace(/([.*+?^=!:${}()|\\[\\]\\/\\\\])/g, '\\\\$1'));\n    } else if (pattern && pattern.source) {\n      // If it's a regexp already, we want to extract the source\n      sources.push(pattern.source);\n    }\n    // Intentionally skip other cases\n  }\n  return new RegExp(sources.join('|'), 'i');\n}\n\nfunction urlencode(o) {\n  var pairs = [];\n  each(o, function(key, value) {\n    pairs.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));\n  });\n  return pairs.join('&');\n}\n\n// borrowed from https://tools.ietf.org/html/rfc3986#appendix-B\n// intentionally using regex and not <a/> href parsing trick because React Native and other\n// environments where DOM might not be available\nfunction parseUrl(url) {\n  if (typeof url !== 'string') return {};\n  var match = url.match(/^(([^:\\/?#]+):)?(\\/\\/([^\\/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?$/);\n\n  // coerce to undefined values to empty string so we don't get 'undefined'\n  var query = match[6] || '';\n  var fragment = match[8] || '';\n  return {\n    protocol: match[2],\n    host: match[4],\n    path: match[5],\n    relative: match[5] + query + fragment // everything minus origin\n  };\n}\nfunction uuid4() {\n  var crypto = _window.crypto || _window.msCrypto;\n\n  if (!isUndefined(crypto) && crypto.getRandomValues) {\n    // Use window.crypto API if available\n    // eslint-disable-next-line no-undef\n    var arr = new Uint16Array(8);\n    crypto.getRandomValues(arr);\n\n    // set 4 in byte 7\n    arr[3] = (arr[3] & 0xfff) | 0x4000;\n    // set 2 most significant bits of byte 9 to '10'\n    arr[4] = (arr[4] & 0x3fff) | 0x8000;\n\n    var pad = function(num) {\n      var v = num.toString(16);\n      while (v.length < 4) {\n        v = '0' + v;\n      }\n      return v;\n    };\n\n    return (\n      pad(arr[0]) +\n      pad(arr[1]) +\n      pad(arr[2]) +\n      pad(arr[3]) +\n      pad(arr[4]) +\n      pad(arr[5]) +\n      pad(arr[6]) +\n      pad(arr[7])\n    );\n  } else {\n    // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#2117523\n    return 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx'.replace(/[xy]/g, function(c) {\n      var r = (Math.random() * 16) | 0,\n        v = c === 'x' ? r : (r & 0x3) | 0x8;\n      return v.toString(16);\n    });\n  }\n}\n\n/**\n * Given a child DOM element, returns a query-selector statement describing that\n * and its ancestors\n * e.g. [HTMLElement] => body > div > input#foo.btn[name=baz]\n * @param elem\n * @returns {string}\n */\nfunction htmlTreeAsString(elem) {\n  /* eslint no-extra-parens:0*/\n  var MAX_TRAVERSE_HEIGHT = 5,\n    MAX_OUTPUT_LEN = 80,\n    out = [],\n    height = 0,\n    len = 0,\n    separator = ' > ',\n    sepLength = separator.length,\n    nextStr;\n\n  while (elem && height++ < MAX_TRAVERSE_HEIGHT) {\n    nextStr = htmlElementAsString(elem);\n    // bail out if\n    // - nextStr is the 'html' element\n    // - the length of the string that would be created exceeds MAX_OUTPUT_LEN\n    //   (ignore this limit if we are on the first iteration)\n    if (\n      nextStr === 'html' ||\n      (height > 1 && len + out.length * sepLength + nextStr.length >= MAX_OUTPUT_LEN)\n    ) {\n      break;\n    }\n\n    out.push(nextStr);\n\n    len += nextStr.length;\n    elem = elem.parentNode;\n  }\n\n  return out.reverse().join(separator);\n}\n\n/**\n * Returns a simple, query-selector representation of a DOM element\n * e.g. [HTMLElement] => input#foo.btn[name=baz]\n * @param HTMLElement\n * @returns {string}\n */\nfunction htmlElementAsString(elem) {\n  var out = [],\n    className,\n    classes,\n    key,\n    attr,\n    i;\n\n  if (!elem || !elem.tagName) {\n    return '';\n  }\n\n  out.push(elem.tagName.toLowerCase());\n  if (elem.id) {\n    out.push('#' + elem.id);\n  }\n\n  className = elem.className;\n  if (className && isString(className)) {\n    classes = className.split(/\\s+/);\n    for (i = 0; i < classes.length; i++) {\n      out.push('.' + classes[i]);\n    }\n  }\n  var attrWhitelist = ['type', 'name', 'title', 'alt'];\n  for (i = 0; i < attrWhitelist.length; i++) {\n    key = attrWhitelist[i];\n    attr = elem.getAttribute(key);\n    if (attr) {\n      out.push('[' + key + '=\"' + attr + '\"]');\n    }\n  }\n  return out.join('');\n}\n\n/**\n * Returns true if either a OR b is truthy, but not both\n */\nfunction isOnlyOneTruthy(a, b) {\n  return !!(!!a ^ !!b);\n}\n\n/**\n * Returns true if both parameters are undefined\n */\nfunction isBothUndefined(a, b) {\n  return isUndefined(a) && isUndefined(b);\n}\n\n/**\n * Returns true if the two input exception interfaces have the same content\n */\nfunction isSameException(ex1, ex2) {\n  if (isOnlyOneTruthy(ex1, ex2)) return false;\n\n  ex1 = ex1.values[0];\n  ex2 = ex2.values[0];\n\n  if (ex1.type !== ex2.type || ex1.value !== ex2.value) return false;\n\n  // in case both stacktraces are undefined, we can't decide so default to false\n  if (isBothUndefined(ex1.stacktrace, ex2.stacktrace)) return false;\n\n  return isSameStacktrace(ex1.stacktrace, ex2.stacktrace);\n}\n\n/**\n * Returns true if the two input stack trace interfaces have the same content\n */\nfunction isSameStacktrace(stack1, stack2) {\n  if (isOnlyOneTruthy(stack1, stack2)) return false;\n\n  var frames1 = stack1.frames;\n  var frames2 = stack2.frames;\n\n  // Exit early if stacktrace is malformed\n  if (frames1 === undefined || frames2 === undefined) return false;\n\n  // Exit early if frame count differs\n  if (frames1.length !== frames2.length) return false;\n\n  // Iterate through every frame; bail out if anything differs\n  var a, b;\n  for (var i = 0; i < frames1.length; i++) {\n    a = frames1[i];\n    b = frames2[i];\n    if (\n      a.filename !== b.filename ||\n      a.lineno !== b.lineno ||\n      a.colno !== b.colno ||\n      a['function'] !== b['function']\n    )\n      return false;\n  }\n  return true;\n}\n\n/**\n * Polyfill a method\n * @param obj object e.g. `document`\n * @param name method name present on object e.g. `addEventListener`\n * @param replacement replacement function\n * @param track {optional} record instrumentation to an array\n */\nfunction fill(obj, name, replacement, track) {\n  if (obj == null) return;\n  var orig = obj[name];\n  obj[name] = replacement(orig);\n  obj[name].__raven__ = true;\n  obj[name].__orig__ = orig;\n  if (track) {\n    track.push([obj, name, orig]);\n  }\n}\n\n/**\n * Join values in array\n * @param input array of values to be joined together\n * @param delimiter string to be placed in-between values\n * @returns {string}\n */\nfunction safeJoin(input, delimiter) {\n  if (!isArray(input)) return '';\n\n  var output = [];\n\n  for (var i = 0; i < input.length; i++) {\n    try {\n      output.push(String(input[i]));\n    } catch (e) {\n      output.push('[value cannot be serialized]');\n    }\n  }\n\n  return output.join(delimiter);\n}\n\n// Default Node.js REPL depth\nvar MAX_SERIALIZE_EXCEPTION_DEPTH = 3;\n// 50kB, as 100kB is max payload size, so half sounds reasonable\nvar MAX_SERIALIZE_EXCEPTION_SIZE = 50 * 1024;\nvar MAX_SERIALIZE_KEYS_LENGTH = 40;\n\nfunction utf8Length(value) {\n  return ~-encodeURI(value).split(/%..|./).length;\n}\n\nfunction jsonSize(value) {\n  return utf8Length(JSON.stringify(value));\n}\n\nfunction serializeValue(value) {\n  if (typeof value === 'string') {\n    var maxLength = 40;\n    return truncate(value, maxLength);\n  } else if (\n    typeof value === 'number' ||\n    typeof value === 'boolean' ||\n    typeof value === 'undefined'\n  ) {\n    return value;\n  }\n\n  var type = Object.prototype.toString.call(value);\n\n  // Node.js REPL notation\n  if (type === '[object Object]') return '[Object]';\n  if (type === '[object Array]') return '[Array]';\n  if (type === '[object Function]')\n    return value.name ? '[Function: ' + value.name + ']' : '[Function]';\n\n  return value;\n}\n\nfunction serializeObject(value, depth) {\n  if (depth === 0) return serializeValue(value);\n\n  if (isPlainObject(value)) {\n    return Object.keys(value).reduce(function(acc, key) {\n      acc[key] = serializeObject(value[key], depth - 1);\n      return acc;\n    }, {});\n  } else if (Array.isArray(value)) {\n    return value.map(function(val) {\n      return serializeObject(val, depth - 1);\n    });\n  }\n\n  return serializeValue(value);\n}\n\nfunction serializeException(ex, depth, maxSize) {\n  if (!isPlainObject(ex)) return ex;\n\n  depth = typeof depth !== 'number' ? MAX_SERIALIZE_EXCEPTION_DEPTH : depth;\n  maxSize = typeof depth !== 'number' ? MAX_SERIALIZE_EXCEPTION_SIZE : maxSize;\n\n  var serialized = serializeObject(ex, depth);\n\n  if (jsonSize(stringify(serialized)) > maxSize) {\n    return serializeException(ex, depth - 1);\n  }\n\n  return serialized;\n}\n\nfunction serializeKeysForMessage(keys, maxLength) {\n  if (typeof keys === 'number' || typeof keys === 'string') return keys.toString();\n  if (!Array.isArray(keys)) return '';\n\n  keys = keys.filter(function(key) {\n    return typeof key === 'string';\n  });\n  if (keys.length === 0) return '[object has no keys]';\n\n  maxLength = typeof maxLength !== 'number' ? MAX_SERIALIZE_KEYS_LENGTH : maxLength;\n  if (keys[0].length >= maxLength) return keys[0];\n\n  for (var usedKeys = keys.length; usedKeys > 0; usedKeys--) {\n    var serialized = keys.slice(0, usedKeys).join(', ');\n    if (serialized.length > maxLength) continue;\n    if (usedKeys === keys.length) return serialized;\n    return serialized + '\\u2026';\n  }\n\n  return '';\n}\n\nfunction sanitize(input, sanitizeKeys) {\n  if (!isArray(sanitizeKeys) || (isArray(sanitizeKeys) && sanitizeKeys.length === 0))\n    return input;\n\n  var sanitizeRegExp = joinRegExp(sanitizeKeys);\n  var sanitizeMask = '********';\n  var safeInput;\n\n  try {\n    safeInput = JSON.parse(stringify(input));\n  } catch (o_O) {\n    return input;\n  }\n\n  function sanitizeWorker(workerInput) {\n    if (isArray(workerInput)) {\n      return workerInput.map(function(val) {\n        return sanitizeWorker(val);\n      });\n    }\n\n    if (isPlainObject(workerInput)) {\n      return Object.keys(workerInput).reduce(function(acc, k) {\n        if (sanitizeRegExp.test(k)) {\n          acc[k] = sanitizeMask;\n        } else {\n          acc[k] = sanitizeWorker(workerInput[k]);\n        }\n        return acc;\n      }, {});\n    }\n\n    return workerInput;\n  }\n\n  return sanitizeWorker(safeInput);\n}\n\nmodule.exports = {\n  isObject: isObject,\n  isError: isError,\n  isErrorEvent: isErrorEvent,\n  isDOMError: isDOMError,\n  isDOMException: isDOMException,\n  isUndefined: isUndefined,\n  isFunction: isFunction,\n  isPlainObject: isPlainObject,\n  isString: isString,\n  isArray: isArray,\n  isEmptyObject: isEmptyObject,\n  supportsErrorEvent: supportsErrorEvent,\n  supportsDOMError: supportsDOMError,\n  supportsDOMException: supportsDOMException,\n  supportsFetch: supportsFetch,\n  supportsReferrerPolicy: supportsReferrerPolicy,\n  supportsPromiseRejectionEvent: supportsPromiseRejectionEvent,\n  wrappedCallback: wrappedCallback,\n  each: each,\n  objectMerge: objectMerge,\n  truncate: truncate,\n  objectFrozen: objectFrozen,\n  hasKey: hasKey,\n  joinRegExp: joinRegExp,\n  urlencode: urlencode,\n  uuid4: uuid4,\n  htmlTreeAsString: htmlTreeAsString,\n  htmlElementAsString: htmlElementAsString,\n  isSameException: isSameException,\n  isSameStacktrace: isSameStacktrace,\n  parseUrl: parseUrl,\n  fill: fill,\n  safeJoin: safeJoin,\n  serializeException: serializeException,\n  serializeKeysForMessage: serializeKeysForMessage,\n  sanitize: sanitize\n};\n","/*! Hammer.JS - v2.0.7 - 2016-04-22\n * http://hammerjs.github.io/\n *\n * Copyright (c) 2016 Jorik Tangelder;\n * Licensed under the MIT license */\n(function(window, document, exportName, undefined) {\n  'use strict';\n\nvar VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];\nvar TEST_ELEMENT = document.createElement('div');\n\nvar TYPE_FUNCTION = 'function';\n\nvar round = Math.round;\nvar abs = Math.abs;\nvar now = Date.now;\n\n/**\n * set a timeout with a given scope\n * @param {Function} fn\n * @param {Number} timeout\n * @param {Object} context\n * @returns {number}\n */\nfunction setTimeoutContext(fn, timeout, context) {\n    return setTimeout(bindFn(fn, context), timeout);\n}\n\n/**\n * if the argument is an array, we want to execute the fn on each entry\n * if it aint an array we don't want to do a thing.\n * this is used by all the methods that accept a single and array argument.\n * @param {*|Array} arg\n * @param {String} fn\n * @param {Object} [context]\n * @returns {Boolean}\n */\nfunction invokeArrayArg(arg, fn, context) {\n    if (Array.isArray(arg)) {\n        each(arg, context[fn], context);\n        return true;\n    }\n    return false;\n}\n\n/**\n * walk objects and arrays\n * @param {Object} obj\n * @param {Function} iterator\n * @param {Object} context\n */\nfunction each(obj, iterator, context) {\n    var i;\n\n    if (!obj) {\n        return;\n    }\n\n    if (obj.forEach) {\n        obj.forEach(iterator, context);\n    } else if (obj.length !== undefined) {\n        i = 0;\n        while (i < obj.length) {\n            iterator.call(context, obj[i], i, obj);\n            i++;\n        }\n    } else {\n        for (i in obj) {\n            obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj);\n        }\n    }\n}\n\n/**\n * wrap a method with a deprecation warning and stack trace\n * @param {Function} method\n * @param {String} name\n * @param {String} message\n * @returns {Function} A new function wrapping the supplied method.\n */\nfunction deprecate(method, name, message) {\n    var deprecationMessage = 'DEPRECATED METHOD: ' + name + '\\n' + message + ' AT \\n';\n    return function() {\n        var e = new Error('get-stack-trace');\n        var stack = e && e.stack ? e.stack.replace(/^[^\\(]+?[\\n$]/gm, '')\n            .replace(/^\\s+at\\s+/gm, '')\n            .replace(/^Object.<anonymous>\\s*\\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';\n\n        var log = window.console && (window.console.warn || window.console.log);\n        if (log) {\n            log.call(window.console, deprecationMessage, stack);\n        }\n        return method.apply(this, arguments);\n    };\n}\n\n/**\n * extend object.\n * means that properties in dest will be overwritten by the ones in src.\n * @param {Object} target\n * @param {...Object} objects_to_assign\n * @returns {Object} target\n */\nvar assign;\nif (typeof Object.assign !== 'function') {\n    assign = function assign(target) {\n        if (target === undefined || target === null) {\n            throw new TypeError('Cannot convert undefined or null to object');\n        }\n\n        var output = Object(target);\n        for (var index = 1; index < arguments.length; index++) {\n            var source = arguments[index];\n            if (source !== undefined && source !== null) {\n                for (var nextKey in source) {\n                    if (source.hasOwnProperty(nextKey)) {\n                        output[nextKey] = source[nextKey];\n                    }\n                }\n            }\n        }\n        return output;\n    };\n} else {\n    assign = Object.assign;\n}\n\n/**\n * extend object.\n * means that properties in dest will be overwritten by the ones in src.\n * @param {Object} dest\n * @param {Object} src\n * @param {Boolean} [merge=false]\n * @returns {Object} dest\n */\nvar extend = deprecate(function extend(dest, src, merge) {\n    var keys = Object.keys(src);\n    var i = 0;\n    while (i < keys.length) {\n        if (!merge || (merge && dest[keys[i]] === undefined)) {\n            dest[keys[i]] = src[keys[i]];\n        }\n        i++;\n    }\n    return dest;\n}, 'extend', 'Use `assign`.');\n\n/**\n * merge the values from src in the dest.\n * means that properties that exist in dest will not be overwritten by src\n * @param {Object} dest\n * @param {Object} src\n * @returns {Object} dest\n */\nvar merge = deprecate(function merge(dest, src) {\n    return extend(dest, src, true);\n}, 'merge', 'Use `assign`.');\n\n/**\n * simple class inheritance\n * @param {Function} child\n * @param {Function} base\n * @param {Object} [properties]\n */\nfunction inherit(child, base, properties) {\n    var baseP = base.prototype,\n        childP;\n\n    childP = child.prototype = Object.create(baseP);\n    childP.constructor = child;\n    childP._super = baseP;\n\n    if (properties) {\n        assign(childP, properties);\n    }\n}\n\n/**\n * simple function bind\n * @param {Function} fn\n * @param {Object} context\n * @returns {Function}\n */\nfunction bindFn(fn, context) {\n    return function boundFn() {\n        return fn.apply(context, arguments);\n    };\n}\n\n/**\n * let a boolean value also be a function that must return a boolean\n * this first item in args will be used as the context\n * @param {Boolean|Function} val\n * @param {Array} [args]\n * @returns {Boolean}\n */\nfunction boolOrFn(val, args) {\n    if (typeof val == TYPE_FUNCTION) {\n        return val.apply(args ? args[0] || undefined : undefined, args);\n    }\n    return val;\n}\n\n/**\n * use the val2 when val1 is undefined\n * @param {*} val1\n * @param {*} val2\n * @returns {*}\n */\nfunction ifUndefined(val1, val2) {\n    return (val1 === undefined) ? val2 : val1;\n}\n\n/**\n * addEventListener with multiple events at once\n * @param {EventTarget} target\n * @param {String} types\n * @param {Function} handler\n */\nfunction addEventListeners(target, types, handler) {\n    each(splitStr(types), function(type) {\n        target.addEventListener(type, handler, false);\n    });\n}\n\n/**\n * removeEventListener with multiple events at once\n * @param {EventTarget} target\n * @param {String} types\n * @param {Function} handler\n */\nfunction removeEventListeners(target, types, handler) {\n    each(splitStr(types), function(type) {\n        target.removeEventListener(type, handler, false);\n    });\n}\n\n/**\n * find if a node is in the given parent\n * @method hasParent\n * @param {HTMLElement} node\n * @param {HTMLElement} parent\n * @return {Boolean} found\n */\nfunction hasParent(node, parent) {\n    while (node) {\n        if (node == parent) {\n            return true;\n        }\n        node = node.parentNode;\n    }\n    return false;\n}\n\n/**\n * small indexOf wrapper\n * @param {String} str\n * @param {String} find\n * @returns {Boolean} found\n */\nfunction inStr(str, find) {\n    return str.indexOf(find) > -1;\n}\n\n/**\n * split string on whitespace\n * @param {String} str\n * @returns {Array} words\n */\nfunction splitStr(str) {\n    return str.trim().split(/\\s+/g);\n}\n\n/**\n * find if a array contains the object using indexOf or a simple polyFill\n * @param {Array} src\n * @param {String} find\n * @param {String} [findByKey]\n * @return {Boolean|Number} false when not found, or the index\n */\nfunction inArray(src, find, findByKey) {\n    if (src.indexOf && !findByKey) {\n        return src.indexOf(find);\n    } else {\n        var i = 0;\n        while (i < src.length) {\n            if ((findByKey && src[i][findByKey] == find) || (!findByKey && src[i] === find)) {\n                return i;\n            }\n            i++;\n        }\n        return -1;\n    }\n}\n\n/**\n * convert array-like objects to real arrays\n * @param {Object} obj\n * @returns {Array}\n */\nfunction toArray(obj) {\n    return Array.prototype.slice.call(obj, 0);\n}\n\n/**\n * unique array with objects based on a key (like 'id') or just by the array's value\n * @param {Array} src [{id:1},{id:2},{id:1}]\n * @param {String} [key]\n * @param {Boolean} [sort=False]\n * @returns {Array} [{id:1},{id:2}]\n */\nfunction uniqueArray(src, key, sort) {\n    var results = [];\n    var values = [];\n    var i = 0;\n\n    while (i < src.length) {\n        var val = key ? src[i][key] : src[i];\n        if (inArray(values, val) < 0) {\n            results.push(src[i]);\n        }\n        values[i] = val;\n        i++;\n    }\n\n    if (sort) {\n        if (!key) {\n            results = results.sort();\n        } else {\n            results = results.sort(function sortUniqueArray(a, b) {\n                return a[key] > b[key];\n            });\n        }\n    }\n\n    return results;\n}\n\n/**\n * get the prefixed property\n * @param {Object} obj\n * @param {String} property\n * @returns {String|Undefined} prefixed\n */\nfunction prefixed(obj, property) {\n    var prefix, prop;\n    var camelProp = property[0].toUpperCase() + property.slice(1);\n\n    var i = 0;\n    while (i < VENDOR_PREFIXES.length) {\n        prefix = VENDOR_PREFIXES[i];\n        prop = (prefix) ? prefix + camelProp : property;\n\n        if (prop in obj) {\n            return prop;\n        }\n        i++;\n    }\n    return undefined;\n}\n\n/**\n * get a unique id\n * @returns {number} uniqueId\n */\nvar _uniqueId = 1;\nfunction uniqueId() {\n    return _uniqueId++;\n}\n\n/**\n * get the window object of an element\n * @param {HTMLElement} element\n * @returns {DocumentView|Window}\n */\nfunction getWindowForElement(element) {\n    var doc = element.ownerDocument || element;\n    return (doc.defaultView || doc.parentWindow || window);\n}\n\nvar MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i;\n\nvar SUPPORT_TOUCH = ('ontouchstart' in window);\nvar SUPPORT_POINTER_EVENTS = prefixed(window, 'PointerEvent') !== undefined;\nvar SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent);\n\nvar INPUT_TYPE_TOUCH = 'touch';\nvar INPUT_TYPE_PEN = 'pen';\nvar INPUT_TYPE_MOUSE = 'mouse';\nvar INPUT_TYPE_KINECT = 'kinect';\n\nvar COMPUTE_INTERVAL = 25;\n\nvar INPUT_START = 1;\nvar INPUT_MOVE = 2;\nvar INPUT_END = 4;\nvar INPUT_CANCEL = 8;\n\nvar DIRECTION_NONE = 1;\nvar DIRECTION_LEFT = 2;\nvar DIRECTION_RIGHT = 4;\nvar DIRECTION_UP = 8;\nvar DIRECTION_DOWN = 16;\n\nvar DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT;\nvar DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN;\nvar DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL;\n\nvar PROPS_XY = ['x', 'y'];\nvar PROPS_CLIENT_XY = ['clientX', 'clientY'];\n\n/**\n * create new input type manager\n * @param {Manager} manager\n * @param {Function} callback\n * @returns {Input}\n * @constructor\n */\nfunction Input(manager, callback) {\n    var self = this;\n    this.manager = manager;\n    this.callback = callback;\n    this.element = manager.element;\n    this.target = manager.options.inputTarget;\n\n    // smaller wrapper around the handler, for the scope and the enabled state of the manager,\n    // so when disabled the input events are completely bypassed.\n    this.domHandler = function(ev) {\n        if (boolOrFn(manager.options.enable, [manager])) {\n            self.handler(ev);\n        }\n    };\n\n    this.init();\n\n}\n\nInput.prototype = {\n    /**\n     * should handle the inputEvent data and trigger the callback\n     * @virtual\n     */\n    handler: function() { },\n\n    /**\n     * bind the events\n     */\n    init: function() {\n        this.evEl && addEventListeners(this.element, this.evEl, this.domHandler);\n        this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler);\n        this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);\n    },\n\n    /**\n     * unbind the events\n     */\n    destroy: function() {\n        this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler);\n        this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler);\n        this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);\n    }\n};\n\n/**\n * create new input type manager\n * called by the Manager constructor\n * @param {Hammer} manager\n * @returns {Input}\n */\nfunction createInputInstance(manager) {\n    var Type;\n    var inputClass = manager.options.inputClass;\n\n    if (inputClass) {\n        Type = inputClass;\n    } else if (SUPPORT_POINTER_EVENTS) {\n        Type = PointerEventInput;\n    } else if (SUPPORT_ONLY_TOUCH) {\n        Type = TouchInput;\n    } else if (!SUPPORT_TOUCH) {\n        Type = MouseInput;\n    } else {\n        Type = TouchMouseInput;\n    }\n    return new (Type)(manager, inputHandler);\n}\n\n/**\n * handle input events\n * @param {Manager} manager\n * @param {String} eventType\n * @param {Object} input\n */\nfunction inputHandler(manager, eventType, input) {\n    var pointersLen = input.pointers.length;\n    var changedPointersLen = input.changedPointers.length;\n    var isFirst = (eventType & INPUT_START && (pointersLen - changedPointersLen === 0));\n    var isFinal = (eventType & (INPUT_END | INPUT_CANCEL) && (pointersLen - changedPointersLen === 0));\n\n    input.isFirst = !!isFirst;\n    input.isFinal = !!isFinal;\n\n    if (isFirst) {\n        manager.session = {};\n    }\n\n    // source event is the normalized value of the domEvents\n    // like 'touchstart, mouseup, pointerdown'\n    input.eventType = eventType;\n\n    // compute scale, rotation etc\n    computeInputData(manager, input);\n\n    // emit secret event\n    manager.emit('hammer.input', input);\n\n    manager.recognize(input);\n    manager.session.prevInput = input;\n}\n\n/**\n * extend the data with some usable properties like scale, rotate, velocity etc\n * @param {Object} manager\n * @param {Object} input\n */\nfunction computeInputData(manager, input) {\n    var session = manager.session;\n    var pointers = input.pointers;\n    var pointersLength = pointers.length;\n\n    // store the first input to calculate the distance and direction\n    if (!session.firstInput) {\n        session.firstInput = simpleCloneInputData(input);\n    }\n\n    // to compute scale and rotation we need to store the multiple touches\n    if (pointersLength > 1 && !session.firstMultiple) {\n        session.firstMultiple = simpleCloneInputData(input);\n    } else if (pointersLength === 1) {\n        session.firstMultiple = false;\n    }\n\n    var firstInput = session.firstInput;\n    var firstMultiple = session.firstMultiple;\n    var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;\n\n    var center = input.center = getCenter(pointers);\n    input.timeStamp = now();\n    input.deltaTime = input.timeStamp - firstInput.timeStamp;\n\n    input.angle = getAngle(offsetCenter, center);\n    input.distance = getDistance(offsetCenter, center);\n\n    computeDeltaXY(session, input);\n    input.offsetDirection = getDirection(input.deltaX, input.deltaY);\n\n    var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY);\n    input.overallVelocityX = overallVelocity.x;\n    input.overallVelocityY = overallVelocity.y;\n    input.overallVelocity = (abs(overallVelocity.x) > abs(overallVelocity.y)) ? overallVelocity.x : overallVelocity.y;\n\n    input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1;\n    input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0;\n\n    input.maxPointers = !session.prevInput ? input.pointers.length : ((input.pointers.length >\n        session.prevInput.maxPointers) ? input.pointers.length : session.prevInput.maxPointers);\n\n    computeIntervalInputData(session, input);\n\n    // find the correct target\n    var target = manager.element;\n    if (hasParent(input.srcEvent.target, target)) {\n        target = input.srcEvent.target;\n    }\n    input.target = target;\n}\n\nfunction computeDeltaXY(session, input) {\n    var center = input.center;\n    var offset = session.offsetDelta || {};\n    var prevDelta = session.prevDelta || {};\n    var prevInput = session.prevInput || {};\n\n    if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) {\n        prevDelta = session.prevDelta = {\n            x: prevInput.deltaX || 0,\n            y: prevInput.deltaY || 0\n        };\n\n        offset = session.offsetDelta = {\n            x: center.x,\n            y: center.y\n        };\n    }\n\n    input.deltaX = prevDelta.x + (center.x - offset.x);\n    input.deltaY = prevDelta.y + (center.y - offset.y);\n}\n\n/**\n * velocity is calculated every x ms\n * @param {Object} session\n * @param {Object} input\n */\nfunction computeIntervalInputData(session, input) {\n    var last = session.lastInterval || input,\n        deltaTime = input.timeStamp - last.timeStamp,\n        velocity, velocityX, velocityY, direction;\n\n    if (input.eventType != INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) {\n        var deltaX = input.deltaX - last.deltaX;\n        var deltaY = input.deltaY - last.deltaY;\n\n        var v = getVelocity(deltaTime, deltaX, deltaY);\n        velocityX = v.x;\n        velocityY = v.y;\n        velocity = (abs(v.x) > abs(v.y)) ? v.x : v.y;\n        direction = getDirection(deltaX, deltaY);\n\n        session.lastInterval = input;\n    } else {\n        // use latest velocity info if it doesn't overtake a minimum period\n        velocity = last.velocity;\n        velocityX = last.velocityX;\n        velocityY = last.velocityY;\n        direction = last.direction;\n    }\n\n    input.velocity = velocity;\n    input.velocityX = velocityX;\n    input.velocityY = velocityY;\n    input.direction = direction;\n}\n\n/**\n * create a simple clone from the input used for storage of firstInput and firstMultiple\n * @param {Object} input\n * @returns {Object} clonedInputData\n */\nfunction simpleCloneInputData(input) {\n    // make a simple copy of the pointers because we will get a reference if we don't\n    // we only need clientXY for the calculations\n    var pointers = [];\n    var i = 0;\n    while (i < input.pointers.length) {\n        pointers[i] = {\n            clientX: round(input.pointers[i].clientX),\n            clientY: round(input.pointers[i].clientY)\n        };\n        i++;\n    }\n\n    return {\n        timeStamp: now(),\n        pointers: pointers,\n        center: getCenter(pointers),\n        deltaX: input.deltaX,\n        deltaY: input.deltaY\n    };\n}\n\n/**\n * get the center of all the pointers\n * @param {Array} pointers\n * @return {Object} center contains `x` and `y` properties\n */\nfunction getCenter(pointers) {\n    var pointersLength = pointers.length;\n\n    // no need to loop when only one touch\n    if (pointersLength === 1) {\n        return {\n            x: round(pointers[0].clientX),\n            y: round(pointers[0].clientY)\n        };\n    }\n\n    var x = 0, y = 0, i = 0;\n    while (i < pointersLength) {\n        x += pointers[i].clientX;\n        y += pointers[i].clientY;\n        i++;\n    }\n\n    return {\n        x: round(x / pointersLength),\n        y: round(y / pointersLength)\n    };\n}\n\n/**\n * calculate the velocity between two points. unit is in px per ms.\n * @param {Number} deltaTime\n * @param {Number} x\n * @param {Number} y\n * @return {Object} velocity `x` and `y`\n */\nfunction getVelocity(deltaTime, x, y) {\n    return {\n        x: x / deltaTime || 0,\n        y: y / deltaTime || 0\n    };\n}\n\n/**\n * get the direction between two points\n * @param {Number} x\n * @param {Number} y\n * @return {Number} direction\n */\nfunction getDirection(x, y) {\n    if (x === y) {\n        return DIRECTION_NONE;\n    }\n\n    if (abs(x) >= abs(y)) {\n        return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;\n    }\n    return y < 0 ? DIRECTION_UP : DIRECTION_DOWN;\n}\n\n/**\n * calculate the absolute distance between two points\n * @param {Object} p1 {x, y}\n * @param {Object} p2 {x, y}\n * @param {Array} [props] containing x and y keys\n * @return {Number} distance\n */\nfunction getDistance(p1, p2, props) {\n    if (!props) {\n        props = PROPS_XY;\n    }\n    var x = p2[props[0]] - p1[props[0]],\n        y = p2[props[1]] - p1[props[1]];\n\n    return Math.sqrt((x * x) + (y * y));\n}\n\n/**\n * calculate the angle between two coordinates\n * @param {Object} p1\n * @param {Object} p2\n * @param {Array} [props] containing x and y keys\n * @return {Number} angle\n */\nfunction getAngle(p1, p2, props) {\n    if (!props) {\n        props = PROPS_XY;\n    }\n    var x = p2[props[0]] - p1[props[0]],\n        y = p2[props[1]] - p1[props[1]];\n    return Math.atan2(y, x) * 180 / Math.PI;\n}\n\n/**\n * calculate the rotation degrees between two pointersets\n * @param {Array} start array of pointers\n * @param {Array} end array of pointers\n * @return {Number} rotation\n */\nfunction getRotation(start, end) {\n    return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY);\n}\n\n/**\n * calculate the scale factor between two pointersets\n * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out\n * @param {Array} start array of pointers\n * @param {Array} end array of pointers\n * @return {Number} scale\n */\nfunction getScale(start, end) {\n    return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY);\n}\n\nvar MOUSE_INPUT_MAP = {\n    mousedown: INPUT_START,\n    mousemove: INPUT_MOVE,\n    mouseup: INPUT_END\n};\n\nvar MOUSE_ELEMENT_EVENTS = 'mousedown';\nvar MOUSE_WINDOW_EVENTS = 'mousemove mouseup';\n\n/**\n * Mouse events input\n * @constructor\n * @extends Input\n */\nfunction MouseInput() {\n    this.evEl = MOUSE_ELEMENT_EVENTS;\n    this.evWin = MOUSE_WINDOW_EVENTS;\n\n    this.pressed = false; // mousedown state\n\n    Input.apply(this, arguments);\n}\n\ninherit(MouseInput, Input, {\n    /**\n     * handle mouse events\n     * @param {Object} ev\n     */\n    handler: function MEhandler(ev) {\n        var eventType = MOUSE_INPUT_MAP[ev.type];\n\n        // on start we want to have the left mouse button down\n        if (eventType & INPUT_START && ev.button === 0) {\n            this.pressed = true;\n        }\n\n        if (eventType & INPUT_MOVE && ev.which !== 1) {\n            eventType = INPUT_END;\n        }\n\n        // mouse must be down\n        if (!this.pressed) {\n            return;\n        }\n\n        if (eventType & INPUT_END) {\n            this.pressed = false;\n        }\n\n        this.callback(this.manager, eventType, {\n            pointers: [ev],\n            changedPointers: [ev],\n            pointerType: INPUT_TYPE_MOUSE,\n            srcEvent: ev\n        });\n    }\n});\n\nvar POINTER_INPUT_MAP = {\n    pointerdown: INPUT_START,\n    pointermove: INPUT_MOVE,\n    pointerup: INPUT_END,\n    pointercancel: INPUT_CANCEL,\n    pointerout: INPUT_CANCEL\n};\n\n// in IE10 the pointer types is defined as an enum\nvar IE10_POINTER_TYPE_ENUM = {\n    2: INPUT_TYPE_TOUCH,\n    3: INPUT_TYPE_PEN,\n    4: INPUT_TYPE_MOUSE,\n    5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816\n};\n\nvar POINTER_ELEMENT_EVENTS = 'pointerdown';\nvar POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel';\n\n// IE10 has prefixed support, and case-sensitive\nif (window.MSPointerEvent && !window.PointerEvent) {\n    POINTER_ELEMENT_EVENTS = 'MSPointerDown';\n    POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';\n}\n\n/**\n * Pointer events input\n * @constructor\n * @extends Input\n */\nfunction PointerEventInput() {\n    this.evEl = POINTER_ELEMENT_EVENTS;\n    this.evWin = POINTER_WINDOW_EVENTS;\n\n    Input.apply(this, arguments);\n\n    this.store = (this.manager.session.pointerEvents = []);\n}\n\ninherit(PointerEventInput, Input, {\n    /**\n     * handle mouse events\n     * @param {Object} ev\n     */\n    handler: function PEhandler(ev) {\n        var store = this.store;\n        var removePointer = false;\n\n        var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');\n        var eventType = POINTER_INPUT_MAP[eventTypeNormalized];\n        var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType;\n\n        var isTouch = (pointerType == INPUT_TYPE_TOUCH);\n\n        // get index of the event in the store\n        var storeIndex = inArray(store, ev.pointerId, 'pointerId');\n\n        // start and mouse must be down\n        if (eventType & INPUT_START && (ev.button === 0 || isTouch)) {\n            if (storeIndex < 0) {\n                store.push(ev);\n                storeIndex = store.length - 1;\n            }\n        } else if (eventType & (INPUT_END | INPUT_CANCEL)) {\n            removePointer = true;\n        }\n\n        // it not found, so the pointer hasn't been down (so it's probably a hover)\n        if (storeIndex < 0) {\n            return;\n        }\n\n        // update the event in the store\n        store[storeIndex] = ev;\n\n        this.callback(this.manager, eventType, {\n            pointers: store,\n            changedPointers: [ev],\n            pointerType: pointerType,\n            srcEvent: ev\n        });\n\n        if (removePointer) {\n            // remove from the store\n            store.splice(storeIndex, 1);\n        }\n    }\n});\n\nvar SINGLE_TOUCH_INPUT_MAP = {\n    touchstart: INPUT_START,\n    touchmove: INPUT_MOVE,\n    touchend: INPUT_END,\n    touchcancel: INPUT_CANCEL\n};\n\nvar SINGLE_TOUCH_TARGET_EVENTS = 'touchstart';\nvar SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel';\n\n/**\n * Touch events input\n * @constructor\n * @extends Input\n */\nfunction SingleTouchInput() {\n    this.evTarget = SINGLE_TOUCH_TARGET_EVENTS;\n    this.evWin = SINGLE_TOUCH_WINDOW_EVENTS;\n    this.started = false;\n\n    Input.apply(this, arguments);\n}\n\ninherit(SingleTouchInput, Input, {\n    handler: function TEhandler(ev) {\n        var type = SINGLE_TOUCH_INPUT_MAP[ev.type];\n\n        // should we handle the touch events?\n        if (type === INPUT_START) {\n            this.started = true;\n        }\n\n        if (!this.started) {\n            return;\n        }\n\n        var touches = normalizeSingleTouches.call(this, ev, type);\n\n        // when done, reset the started state\n        if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) {\n            this.started = false;\n        }\n\n        this.callback(this.manager, type, {\n            pointers: touches[0],\n            changedPointers: touches[1],\n            pointerType: INPUT_TYPE_TOUCH,\n            srcEvent: ev\n        });\n    }\n});\n\n/**\n * @this {TouchInput}\n * @param {Object} ev\n * @param {Number} type flag\n * @returns {undefined|Array} [all, changed]\n */\nfunction normalizeSingleTouches(ev, type) {\n    var all = toArray(ev.touches);\n    var changed = toArray(ev.changedTouches);\n\n    if (type & (INPUT_END | INPUT_CANCEL)) {\n        all = uniqueArray(all.concat(changed), 'identifier', true);\n    }\n\n    return [all, changed];\n}\n\nvar TOUCH_INPUT_MAP = {\n    touchstart: INPUT_START,\n    touchmove: INPUT_MOVE,\n    touchend: INPUT_END,\n    touchcancel: INPUT_CANCEL\n};\n\nvar TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel';\n\n/**\n * Multi-user touch events input\n * @constructor\n * @extends Input\n */\nfunction TouchInput() {\n    this.evTarget = TOUCH_TARGET_EVENTS;\n    this.targetIds = {};\n\n    Input.apply(this, arguments);\n}\n\ninherit(TouchInput, Input, {\n    handler: function MTEhandler(ev) {\n        var type = TOUCH_INPUT_MAP[ev.type];\n        var touches = getTouches.call(this, ev, type);\n        if (!touches) {\n            return;\n        }\n\n        this.callback(this.manager, type, {\n            pointers: touches[0],\n            changedPointers: touches[1],\n            pointerType: INPUT_TYPE_TOUCH,\n            srcEvent: ev\n        });\n    }\n});\n\n/**\n * @this {TouchInput}\n * @param {Object} ev\n * @param {Number} type flag\n * @returns {undefined|Array} [all, changed]\n */\nfunction getTouches(ev, type) {\n    var allTouches = toArray(ev.touches);\n    var targetIds = this.targetIds;\n\n    // when there is only one touch, the process can be simplified\n    if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) {\n        targetIds[allTouches[0].identifier] = true;\n        return [allTouches, allTouches];\n    }\n\n    var i,\n        targetTouches,\n        changedTouches = toArray(ev.changedTouches),\n        changedTargetTouches = [],\n        target = this.target;\n\n    // get target touches from touches\n    targetTouches = allTouches.filter(function(touch) {\n        return hasParent(touch.target, target);\n    });\n\n    // collect touches\n    if (type === INPUT_START) {\n        i = 0;\n        while (i < targetTouches.length) {\n            targetIds[targetTouches[i].identifier] = true;\n            i++;\n        }\n    }\n\n    // filter changed touches to only contain touches that exist in the collected target ids\n    i = 0;\n    while (i < changedTouches.length) {\n        if (targetIds[changedTouches[i].identifier]) {\n            changedTargetTouches.push(changedTouches[i]);\n        }\n\n        // cleanup removed touches\n        if (type & (INPUT_END | INPUT_CANCEL)) {\n            delete targetIds[changedTouches[i].identifier];\n        }\n        i++;\n    }\n\n    if (!changedTargetTouches.length) {\n        return;\n    }\n\n    return [\n        // merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'\n        uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true),\n        changedTargetTouches\n    ];\n}\n\n/**\n * Combined touch and mouse input\n *\n * Touch has a higher priority then mouse, and while touching no mouse events are allowed.\n * This because touch devices also emit mouse events while doing a touch.\n *\n * @constructor\n * @extends Input\n */\n\nvar DEDUP_TIMEOUT = 2500;\nvar DEDUP_DISTANCE = 25;\n\nfunction TouchMouseInput() {\n    Input.apply(this, arguments);\n\n    var handler = bindFn(this.handler, this);\n    this.touch = new TouchInput(this.manager, handler);\n    this.mouse = new MouseInput(this.manager, handler);\n\n    this.primaryTouch = null;\n    this.lastTouches = [];\n}\n\ninherit(TouchMouseInput, Input, {\n    /**\n     * handle mouse and touch events\n     * @param {Hammer} manager\n     * @param {String} inputEvent\n     * @param {Object} inputData\n     */\n    handler: function TMEhandler(manager, inputEvent, inputData) {\n        var isTouch = (inputData.pointerType == INPUT_TYPE_TOUCH),\n            isMouse = (inputData.pointerType == INPUT_TYPE_MOUSE);\n\n        if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) {\n            return;\n        }\n\n        // when we're in a touch event, record touches to  de-dupe synthetic mouse event\n        if (isTouch) {\n            recordTouches.call(this, inputEvent, inputData);\n        } else if (isMouse && isSyntheticEvent.call(this, inputData)) {\n            return;\n        }\n\n        this.callback(manager, inputEvent, inputData);\n    },\n\n    /**\n     * remove the event listeners\n     */\n    destroy: function destroy() {\n        this.touch.destroy();\n        this.mouse.destroy();\n    }\n});\n\nfunction recordTouches(eventType, eventData) {\n    if (eventType & INPUT_START) {\n        this.primaryTouch = eventData.changedPointers[0].identifier;\n        setLastTouch.call(this, eventData);\n    } else if (eventType & (INPUT_END | INPUT_CANCEL)) {\n        setLastTouch.call(this, eventData);\n    }\n}\n\nfunction setLastTouch(eventData) {\n    var touch = eventData.changedPointers[0];\n\n    if (touch.identifier === this.primaryTouch) {\n        var lastTouch = {x: touch.clientX, y: touch.clientY};\n        this.lastTouches.push(lastTouch);\n        var lts = this.lastTouches;\n        var removeLastTouch = function() {\n            var i = lts.indexOf(lastTouch);\n            if (i > -1) {\n                lts.splice(i, 1);\n            }\n        };\n        setTimeout(removeLastTouch, DEDUP_TIMEOUT);\n    }\n}\n\nfunction isSyntheticEvent(eventData) {\n    var x = eventData.srcEvent.clientX, y = eventData.srcEvent.clientY;\n    for (var i = 0; i < this.lastTouches.length; i++) {\n        var t = this.lastTouches[i];\n        var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y);\n        if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) {\n            return true;\n        }\n    }\n    return false;\n}\n\nvar PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction');\nvar NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined;\n\n// magical touchAction value\nvar TOUCH_ACTION_COMPUTE = 'compute';\nvar TOUCH_ACTION_AUTO = 'auto';\nvar TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented\nvar TOUCH_ACTION_NONE = 'none';\nvar TOUCH_ACTION_PAN_X = 'pan-x';\nvar TOUCH_ACTION_PAN_Y = 'pan-y';\nvar TOUCH_ACTION_MAP = getTouchActionProps();\n\n/**\n * Touch Action\n * sets the touchAction property or uses the js alternative\n * @param {Manager} manager\n * @param {String} value\n * @constructor\n */\nfunction TouchAction(manager, value) {\n    this.manager = manager;\n    this.set(value);\n}\n\nTouchAction.prototype = {\n    /**\n     * set the touchAction value on the element or enable the polyfill\n     * @param {String} value\n     */\n    set: function(value) {\n        // find out the touch-action by the event handlers\n        if (value == TOUCH_ACTION_COMPUTE) {\n            value = this.compute();\n        }\n\n        if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) {\n            this.manager.element.style[PREFIXED_TOUCH_ACTION] = value;\n        }\n        this.actions = value.toLowerCase().trim();\n    },\n\n    /**\n     * just re-set the touchAction value\n     */\n    update: function() {\n        this.set(this.manager.options.touchAction);\n    },\n\n    /**\n     * compute the value for the touchAction property based on the recognizer's settings\n     * @returns {String} value\n     */\n    compute: function() {\n        var actions = [];\n        each(this.manager.recognizers, function(recognizer) {\n            if (boolOrFn(recognizer.options.enable, [recognizer])) {\n                actions = actions.concat(recognizer.getTouchAction());\n            }\n        });\n        return cleanTouchActions(actions.join(' '));\n    },\n\n    /**\n     * this method is called on each input cycle and provides the preventing of the browser behavior\n     * @param {Object} input\n     */\n    preventDefaults: function(input) {\n        var srcEvent = input.srcEvent;\n        var direction = input.offsetDirection;\n\n        // if the touch action did prevented once this session\n        if (this.manager.session.prevented) {\n            srcEvent.preventDefault();\n            return;\n        }\n\n        var actions = this.actions;\n        var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE];\n        var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y];\n        var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X];\n\n        if (hasNone) {\n            //do not prevent defaults if this is a tap gesture\n\n            var isTapPointer = input.pointers.length === 1;\n            var isTapMovement = input.distance < 2;\n            var isTapTouchTime = input.deltaTime < 250;\n\n            if (isTapPointer && isTapMovement && isTapTouchTime) {\n                return;\n            }\n        }\n\n        if (hasPanX && hasPanY) {\n            // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent\n            return;\n        }\n\n        if (hasNone ||\n            (hasPanY && direction & DIRECTION_HORIZONTAL) ||\n            (hasPanX && direction & DIRECTION_VERTICAL)) {\n            return this.preventSrc(srcEvent);\n        }\n    },\n\n    /**\n     * call preventDefault to prevent the browser's default behavior (scrolling in most cases)\n     * @param {Object} srcEvent\n     */\n    preventSrc: function(srcEvent) {\n        this.manager.session.prevented = true;\n        srcEvent.preventDefault();\n    }\n};\n\n/**\n * when the touchActions are collected they are not a valid value, so we need to clean things up. *\n * @param {String} actions\n * @returns {*}\n */\nfunction cleanTouchActions(actions) {\n    // none\n    if (inStr(actions, TOUCH_ACTION_NONE)) {\n        return TOUCH_ACTION_NONE;\n    }\n\n    var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X);\n    var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y);\n\n    // if both pan-x and pan-y are set (different recognizers\n    // for different directions, e.g. horizontal pan but vertical swipe?)\n    // we need none (as otherwise with pan-x pan-y combined none of these\n    // recognizers will work, since the browser would handle all panning\n    if (hasPanX && hasPanY) {\n        return TOUCH_ACTION_NONE;\n    }\n\n    // pan-x OR pan-y\n    if (hasPanX || hasPanY) {\n        return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y;\n    }\n\n    // manipulation\n    if (inStr(actions, TOUCH_ACTION_MANIPULATION)) {\n        return TOUCH_ACTION_MANIPULATION;\n    }\n\n    return TOUCH_ACTION_AUTO;\n}\n\nfunction getTouchActionProps() {\n    if (!NATIVE_TOUCH_ACTION) {\n        return false;\n    }\n    var touchMap = {};\n    var cssSupports = window.CSS && window.CSS.supports;\n    ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function(val) {\n\n        // If css.supports is not supported but there is native touch-action assume it supports\n        // all values. This is the case for IE 10 and 11.\n        touchMap[val] = cssSupports ? window.CSS.supports('touch-action', val) : true;\n    });\n    return touchMap;\n}\n\n/**\n * Recognizer flow explained; *\n * All recognizers have the initial state of POSSIBLE when a input session starts.\n * The definition of a input session is from the first input until the last input, with all it's movement in it. *\n * Example session for mouse-input: mousedown -> mousemove -> mouseup\n *\n * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed\n * which determines with state it should be.\n *\n * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to\n * POSSIBLE to give it another change on the next cycle.\n *\n *               Possible\n *                  |\n *            +-----+---------------+\n *            |                     |\n *      +-----+-----+               |\n *      |           |               |\n *   Failed      Cancelled          |\n *                          +-------+------+\n *                          |              |\n *                      Recognized       Began\n *                                         |\n *                                      Changed\n *                                         |\n *                                  Ended/Recognized\n */\nvar STATE_POSSIBLE = 1;\nvar STATE_BEGAN = 2;\nvar STATE_CHANGED = 4;\nvar STATE_ENDED = 8;\nvar STATE_RECOGNIZED = STATE_ENDED;\nvar STATE_CANCELLED = 16;\nvar STATE_FAILED = 32;\n\n/**\n * Recognizer\n * Every recognizer needs to extend from this class.\n * @constructor\n * @param {Object} options\n */\nfunction Recognizer(options) {\n    this.options = assign({}, this.defaults, options || {});\n\n    this.id = uniqueId();\n\n    this.manager = null;\n\n    // default is enable true\n    this.options.enable = ifUndefined(this.options.enable, true);\n\n    this.state = STATE_POSSIBLE;\n\n    this.simultaneous = {};\n    this.requireFail = [];\n}\n\nRecognizer.prototype = {\n    /**\n     * @virtual\n     * @type {Object}\n     */\n    defaults: {},\n\n    /**\n     * set options\n     * @param {Object} options\n     * @return {Recognizer}\n     */\n    set: function(options) {\n        assign(this.options, options);\n\n        // also update the touchAction, in case something changed about the directions/enabled state\n        this.manager && this.manager.touchAction.update();\n        return this;\n    },\n\n    /**\n     * recognize simultaneous with an other recognizer.\n     * @param {Recognizer} otherRecognizer\n     * @returns {Recognizer} this\n     */\n    recognizeWith: function(otherRecognizer) {\n        if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) {\n            return this;\n        }\n\n        var simultaneous = this.simultaneous;\n        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n        if (!simultaneous[otherRecognizer.id]) {\n            simultaneous[otherRecognizer.id] = otherRecognizer;\n            otherRecognizer.recognizeWith(this);\n        }\n        return this;\n    },\n\n    /**\n     * drop the simultaneous link. it doesnt remove the link on the other recognizer.\n     * @param {Recognizer} otherRecognizer\n     * @returns {Recognizer} this\n     */\n    dropRecognizeWith: function(otherRecognizer) {\n        if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) {\n            return this;\n        }\n\n        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n        delete this.simultaneous[otherRecognizer.id];\n        return this;\n    },\n\n    /**\n     * recognizer can only run when an other is failing\n     * @param {Recognizer} otherRecognizer\n     * @returns {Recognizer} this\n     */\n    requireFailure: function(otherRecognizer) {\n        if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) {\n            return this;\n        }\n\n        var requireFail = this.requireFail;\n        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n        if (inArray(requireFail, otherRecognizer) === -1) {\n            requireFail.push(otherRecognizer);\n            otherRecognizer.requireFailure(this);\n        }\n        return this;\n    },\n\n    /**\n     * drop the requireFailure link. it does not remove the link on the other recognizer.\n     * @param {Recognizer} otherRecognizer\n     * @returns {Recognizer} this\n     */\n    dropRequireFailure: function(otherRecognizer) {\n        if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) {\n            return this;\n        }\n\n        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n        var index = inArray(this.requireFail, otherRecognizer);\n        if (index > -1) {\n            this.requireFail.splice(index, 1);\n        }\n        return this;\n    },\n\n    /**\n     * has require failures boolean\n     * @returns {boolean}\n     */\n    hasRequireFailures: function() {\n        return this.requireFail.length > 0;\n    },\n\n    /**\n     * if the recognizer can recognize simultaneous with an other recognizer\n     * @param {Recognizer} otherRecognizer\n     * @returns {Boolean}\n     */\n    canRecognizeWith: function(otherRecognizer) {\n        return !!this.simultaneous[otherRecognizer.id];\n    },\n\n    /**\n     * You should use `tryEmit` instead of `emit` directly to check\n     * that all the needed recognizers has failed before emitting.\n     * @param {Object} input\n     */\n    emit: function(input) {\n        var self = this;\n        var state = this.state;\n\n        function emit(event) {\n            self.manager.emit(event, input);\n        }\n\n        // 'panstart' and 'panmove'\n        if (state < STATE_ENDED) {\n            emit(self.options.event + stateStr(state));\n        }\n\n        emit(self.options.event); // simple 'eventName' events\n\n        if (input.additionalEvent) { // additional event(panleft, panright, pinchin, pinchout...)\n            emit(input.additionalEvent);\n        }\n\n        // panend and pancancel\n        if (state >= STATE_ENDED) {\n            emit(self.options.event + stateStr(state));\n        }\n    },\n\n    /**\n     * Check that all the require failure recognizers has failed,\n     * if true, it emits a gesture event,\n     * otherwise, setup the state to FAILED.\n     * @param {Object} input\n     */\n    tryEmit: function(input) {\n        if (this.canEmit()) {\n            return this.emit(input);\n        }\n        // it's failing anyway\n        this.state = STATE_FAILED;\n    },\n\n    /**\n     * can we emit?\n     * @returns {boolean}\n     */\n    canEmit: function() {\n        var i = 0;\n        while (i < this.requireFail.length) {\n            if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) {\n                return false;\n            }\n            i++;\n        }\n        return true;\n    },\n\n    /**\n     * update the recognizer\n     * @param {Object} inputData\n     */\n    recognize: function(inputData) {\n        // make a new copy of the inputData\n        // so we can change the inputData without messing up the other recognizers\n        var inputDataClone = assign({}, inputData);\n\n        // is is enabled and allow recognizing?\n        if (!boolOrFn(this.options.enable, [this, inputDataClone])) {\n            this.reset();\n            this.state = STATE_FAILED;\n            return;\n        }\n\n        // reset when we've reached the end\n        if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) {\n            this.state = STATE_POSSIBLE;\n        }\n\n        this.state = this.process(inputDataClone);\n\n        // the recognizer has recognized a gesture\n        // so trigger an event\n        if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) {\n            this.tryEmit(inputDataClone);\n        }\n    },\n\n    /**\n     * return the state of the recognizer\n     * the actual recognizing happens in this method\n     * @virtual\n     * @param {Object} inputData\n     * @returns {Const} STATE\n     */\n    process: function(inputData) { }, // jshint ignore:line\n\n    /**\n     * return the preferred touch-action\n     * @virtual\n     * @returns {Array}\n     */\n    getTouchAction: function() { },\n\n    /**\n     * called when the gesture isn't allowed to recognize\n     * like when another is being recognized or it is disabled\n     * @virtual\n     */\n    reset: function() { }\n};\n\n/**\n * get a usable string, used as event postfix\n * @param {Const} state\n * @returns {String} state\n */\nfunction stateStr(state) {\n    if (state & STATE_CANCELLED) {\n        return 'cancel';\n    } else if (state & STATE_ENDED) {\n        return 'end';\n    } else if (state & STATE_CHANGED) {\n        return 'move';\n    } else if (state & STATE_BEGAN) {\n        return 'start';\n    }\n    return '';\n}\n\n/**\n * direction cons to string\n * @param {Const} direction\n * @returns {String}\n */\nfunction directionStr(direction) {\n    if (direction == DIRECTION_DOWN) {\n        return 'down';\n    } else if (direction == DIRECTION_UP) {\n        return 'up';\n    } else if (direction == DIRECTION_LEFT) {\n        return 'left';\n    } else if (direction == DIRECTION_RIGHT) {\n        return 'right';\n    }\n    return '';\n}\n\n/**\n * get a recognizer by name if it is bound to a manager\n * @param {Recognizer|String} otherRecognizer\n * @param {Recognizer} recognizer\n * @returns {Recognizer}\n */\nfunction getRecognizerByNameIfManager(otherRecognizer, recognizer) {\n    var manager = recognizer.manager;\n    if (manager) {\n        return manager.get(otherRecognizer);\n    }\n    return otherRecognizer;\n}\n\n/**\n * This recognizer is just used as a base for the simple attribute recognizers.\n * @constructor\n * @extends Recognizer\n */\nfunction AttrRecognizer() {\n    Recognizer.apply(this, arguments);\n}\n\ninherit(AttrRecognizer, Recognizer, {\n    /**\n     * @namespace\n     * @memberof AttrRecognizer\n     */\n    defaults: {\n        /**\n         * @type {Number}\n         * @default 1\n         */\n        pointers: 1\n    },\n\n    /**\n     * Used to check if it the recognizer receives valid input, like input.distance > 10.\n     * @memberof AttrRecognizer\n     * @param {Object} input\n     * @returns {Boolean} recognized\n     */\n    attrTest: function(input) {\n        var optionPointers = this.options.pointers;\n        return optionPointers === 0 || input.pointers.length === optionPointers;\n    },\n\n    /**\n     * Process the input and return the state for the recognizer\n     * @memberof AttrRecognizer\n     * @param {Object} input\n     * @returns {*} State\n     */\n    process: function(input) {\n        var state = this.state;\n        var eventType = input.eventType;\n\n        var isRecognized = state & (STATE_BEGAN | STATE_CHANGED);\n        var isValid = this.attrTest(input);\n\n        // on cancel input and we've recognized before, return STATE_CANCELLED\n        if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) {\n            return state | STATE_CANCELLED;\n        } else if (isRecognized || isValid) {\n            if (eventType & INPUT_END) {\n                return state | STATE_ENDED;\n            } else if (!(state & STATE_BEGAN)) {\n                return STATE_BEGAN;\n            }\n            return state | STATE_CHANGED;\n        }\n        return STATE_FAILED;\n    }\n});\n\n/**\n * Pan\n * Recognized when the pointer is down and moved in the allowed direction.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction PanRecognizer() {\n    AttrRecognizer.apply(this, arguments);\n\n    this.pX = null;\n    this.pY = null;\n}\n\ninherit(PanRecognizer, AttrRecognizer, {\n    /**\n     * @namespace\n     * @memberof PanRecognizer\n     */\n    defaults: {\n        event: 'pan',\n        threshold: 10,\n        pointers: 1,\n        direction: DIRECTION_ALL\n    },\n\n    getTouchAction: function() {\n        var direction = this.options.direction;\n        var actions = [];\n        if (direction & DIRECTION_HORIZONTAL) {\n            actions.push(TOUCH_ACTION_PAN_Y);\n        }\n        if (direction & DIRECTION_VERTICAL) {\n            actions.push(TOUCH_ACTION_PAN_X);\n        }\n        return actions;\n    },\n\n    directionTest: function(input) {\n        var options = this.options;\n        var hasMoved = true;\n        var distance = input.distance;\n        var direction = input.direction;\n        var x = input.deltaX;\n        var y = input.deltaY;\n\n        // lock to axis?\n        if (!(direction & options.direction)) {\n            if (options.direction & DIRECTION_HORIZONTAL) {\n                direction = (x === 0) ? DIRECTION_NONE : (x < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT;\n                hasMoved = x != this.pX;\n                distance = Math.abs(input.deltaX);\n            } else {\n                direction = (y === 0) ? DIRECTION_NONE : (y < 0) ? DIRECTION_UP : DIRECTION_DOWN;\n                hasMoved = y != this.pY;\n                distance = Math.abs(input.deltaY);\n            }\n        }\n        input.direction = direction;\n        return hasMoved && distance > options.threshold && direction & options.direction;\n    },\n\n    attrTest: function(input) {\n        return AttrRecognizer.prototype.attrTest.call(this, input) &&\n            (this.state & STATE_BEGAN || (!(this.state & STATE_BEGAN) && this.directionTest(input)));\n    },\n\n    emit: function(input) {\n\n        this.pX = input.deltaX;\n        this.pY = input.deltaY;\n\n        var direction = directionStr(input.direction);\n\n        if (direction) {\n            input.additionalEvent = this.options.event + direction;\n        }\n        this._super.emit.call(this, input);\n    }\n});\n\n/**\n * Pinch\n * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).\n * @constructor\n * @extends AttrRecognizer\n */\nfunction PinchRecognizer() {\n    AttrRecognizer.apply(this, arguments);\n}\n\ninherit(PinchRecognizer, AttrRecognizer, {\n    /**\n     * @namespace\n     * @memberof PinchRecognizer\n     */\n    defaults: {\n        event: 'pinch',\n        threshold: 0,\n        pointers: 2\n    },\n\n    getTouchAction: function() {\n        return [TOUCH_ACTION_NONE];\n    },\n\n    attrTest: function(input) {\n        return this._super.attrTest.call(this, input) &&\n            (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN);\n    },\n\n    emit: function(input) {\n        if (input.scale !== 1) {\n            var inOut = input.scale < 1 ? 'in' : 'out';\n            input.additionalEvent = this.options.event + inOut;\n        }\n        this._super.emit.call(this, input);\n    }\n});\n\n/**\n * Press\n * Recognized when the pointer is down for x ms without any movement.\n * @constructor\n * @extends Recognizer\n */\nfunction PressRecognizer() {\n    Recognizer.apply(this, arguments);\n\n    this._timer = null;\n    this._input = null;\n}\n\ninherit(PressRecognizer, Recognizer, {\n    /**\n     * @namespace\n     * @memberof PressRecognizer\n     */\n    defaults: {\n        event: 'press',\n        pointers: 1,\n        time: 251, // minimal time of the pointer to be pressed\n        threshold: 9 // a minimal movement is ok, but keep it low\n    },\n\n    getTouchAction: function() {\n        return [TOUCH_ACTION_AUTO];\n    },\n\n    process: function(input) {\n        var options = this.options;\n        var validPointers = input.pointers.length === options.pointers;\n        var validMovement = input.distance < options.threshold;\n        var validTime = input.deltaTime > options.time;\n\n        this._input = input;\n\n        // we only allow little movement\n        // and we've reached an end event, so a tap is possible\n        if (!validMovement || !validPointers || (input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime)) {\n            this.reset();\n        } else if (input.eventType & INPUT_START) {\n            this.reset();\n            this._timer = setTimeoutContext(function() {\n                this.state = STATE_RECOGNIZED;\n                this.tryEmit();\n            }, options.time, this);\n        } else if (input.eventType & INPUT_END) {\n            return STATE_RECOGNIZED;\n        }\n        return STATE_FAILED;\n    },\n\n    reset: function() {\n        clearTimeout(this._timer);\n    },\n\n    emit: function(input) {\n        if (this.state !== STATE_RECOGNIZED) {\n            return;\n        }\n\n        if (input && (input.eventType & INPUT_END)) {\n            this.manager.emit(this.options.event + 'up', input);\n        } else {\n            this._input.timeStamp = now();\n            this.manager.emit(this.options.event, this._input);\n        }\n    }\n});\n\n/**\n * Rotate\n * Recognized when two or more pointer are moving in a circular motion.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction RotateRecognizer() {\n    AttrRecognizer.apply(this, arguments);\n}\n\ninherit(RotateRecognizer, AttrRecognizer, {\n    /**\n     * @namespace\n     * @memberof RotateRecognizer\n     */\n    defaults: {\n        event: 'rotate',\n        threshold: 0,\n        pointers: 2\n    },\n\n    getTouchAction: function() {\n        return [TOUCH_ACTION_NONE];\n    },\n\n    attrTest: function(input) {\n        return this._super.attrTest.call(this, input) &&\n            (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN);\n    }\n});\n\n/**\n * Swipe\n * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction SwipeRecognizer() {\n    AttrRecognizer.apply(this, arguments);\n}\n\ninherit(SwipeRecognizer, AttrRecognizer, {\n    /**\n     * @namespace\n     * @memberof SwipeRecognizer\n     */\n    defaults: {\n        event: 'swipe',\n        threshold: 10,\n        velocity: 0.3,\n        direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL,\n        pointers: 1\n    },\n\n    getTouchAction: function() {\n        return PanRecognizer.prototype.getTouchAction.call(this);\n    },\n\n    attrTest: function(input) {\n        var direction = this.options.direction;\n        var velocity;\n\n        if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) {\n            velocity = input.overallVelocity;\n        } else if (direction & DIRECTION_HORIZONTAL) {\n            velocity = input.overallVelocityX;\n        } else if (direction & DIRECTION_VERTICAL) {\n            velocity = input.overallVelocityY;\n        }\n\n        return this._super.attrTest.call(this, input) &&\n            direction & input.offsetDirection &&\n            input.distance > this.options.threshold &&\n            input.maxPointers == this.options.pointers &&\n            abs(velocity) > this.options.velocity && input.eventType & INPUT_END;\n    },\n\n    emit: function(input) {\n        var direction = directionStr(input.offsetDirection);\n        if (direction) {\n            this.manager.emit(this.options.event + direction, input);\n        }\n\n        this.manager.emit(this.options.event, input);\n    }\n});\n\n/**\n * A tap is ecognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur\n * between the given interval and position. The delay option can be used to recognize multi-taps without firing\n * a single tap.\n *\n * The eventData from the emitted event contains the property `tapCount`, which contains the amount of\n * multi-taps being recognized.\n * @constructor\n * @extends Recognizer\n */\nfunction TapRecognizer() {\n    Recognizer.apply(this, arguments);\n\n    // previous time and center,\n    // used for tap counting\n    this.pTime = false;\n    this.pCenter = false;\n\n    this._timer = null;\n    this._input = null;\n    this.count = 0;\n}\n\ninherit(TapRecognizer, Recognizer, {\n    /**\n     * @namespace\n     * @memberof PinchRecognizer\n     */\n    defaults: {\n        event: 'tap',\n        pointers: 1,\n        taps: 1,\n        interval: 300, // max time between the multi-tap taps\n        time: 250, // max time of the pointer to be down (like finger on the screen)\n        threshold: 9, // a minimal movement is ok, but keep it low\n        posThreshold: 10 // a multi-tap can be a bit off the initial position\n    },\n\n    getTouchAction: function() {\n        return [TOUCH_ACTION_MANIPULATION];\n    },\n\n    process: function(input) {\n        var options = this.options;\n\n        var validPointers = input.pointers.length === options.pointers;\n        var validMovement = input.distance < options.threshold;\n        var validTouchTime = input.deltaTime < options.time;\n\n        this.reset();\n\n        if ((input.eventType & INPUT_START) && (this.count === 0)) {\n            return this.failTimeout();\n        }\n\n        // we only allow little movement\n        // and we've reached an end event, so a tap is possible\n        if (validMovement && validTouchTime && validPointers) {\n            if (input.eventType != INPUT_END) {\n                return this.failTimeout();\n            }\n\n            var validInterval = this.pTime ? (input.timeStamp - this.pTime < options.interval) : true;\n            var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold;\n\n            this.pTime = input.timeStamp;\n            this.pCenter = input.center;\n\n            if (!validMultiTap || !validInterval) {\n                this.count = 1;\n            } else {\n                this.count += 1;\n            }\n\n            this._input = input;\n\n            // if tap count matches we have recognized it,\n            // else it has began recognizing...\n            var tapCount = this.count % options.taps;\n            if (tapCount === 0) {\n                // no failing requirements, immediately trigger the tap event\n                // or wait as long as the multitap interval to trigger\n                if (!this.hasRequireFailures()) {\n                    return STATE_RECOGNIZED;\n                } else {\n                    this._timer = setTimeoutContext(function() {\n                        this.state = STATE_RECOGNIZED;\n                        this.tryEmit();\n                    }, options.interval, this);\n                    return STATE_BEGAN;\n                }\n            }\n        }\n        return STATE_FAILED;\n    },\n\n    failTimeout: function() {\n        this._timer = setTimeoutContext(function() {\n            this.state = STATE_FAILED;\n        }, this.options.interval, this);\n        return STATE_FAILED;\n    },\n\n    reset: function() {\n        clearTimeout(this._timer);\n    },\n\n    emit: function() {\n        if (this.state == STATE_RECOGNIZED) {\n            this._input.tapCount = this.count;\n            this.manager.emit(this.options.event, this._input);\n        }\n    }\n});\n\n/**\n * Simple way to create a manager with a default set of recognizers.\n * @param {HTMLElement} element\n * @param {Object} [options]\n * @constructor\n */\nfunction Hammer(element, options) {\n    options = options || {};\n    options.recognizers = ifUndefined(options.recognizers, Hammer.defaults.preset);\n    return new Manager(element, options);\n}\n\n/**\n * @const {string}\n */\nHammer.VERSION = '2.0.7';\n\n/**\n * default settings\n * @namespace\n */\nHammer.defaults = {\n    /**\n     * set if DOM events are being triggered.\n     * But this is slower and unused by simple implementations, so disabled by default.\n     * @type {Boolean}\n     * @default false\n     */\n    domEvents: false,\n\n    /**\n     * The value for the touchAction property/fallback.\n     * When set to `compute` it will magically set the correct value based on the added recognizers.\n     * @type {String}\n     * @default compute\n     */\n    touchAction: TOUCH_ACTION_COMPUTE,\n\n    /**\n     * @type {Boolean}\n     * @default true\n     */\n    enable: true,\n\n    /**\n     * EXPERIMENTAL FEATURE -- can be removed/changed\n     * Change the parent input target element.\n     * If Null, then it is being set the to main element.\n     * @type {Null|EventTarget}\n     * @default null\n     */\n    inputTarget: null,\n\n    /**\n     * force an input class\n     * @type {Null|Function}\n     * @default null\n     */\n    inputClass: null,\n\n    /**\n     * Default recognizer setup when calling `Hammer()`\n     * When creating a new Manager these will be skipped.\n     * @type {Array}\n     */\n    preset: [\n        // RecognizerClass, options, [recognizeWith, ...], [requireFailure, ...]\n        [RotateRecognizer, {enable: false}],\n        [PinchRecognizer, {enable: false}, ['rotate']],\n        [SwipeRecognizer, {direction: DIRECTION_HORIZONTAL}],\n        [PanRecognizer, {direction: DIRECTION_HORIZONTAL}, ['swipe']],\n        [TapRecognizer],\n        [TapRecognizer, {event: 'doubletap', taps: 2}, ['tap']],\n        [PressRecognizer]\n    ],\n\n    /**\n     * Some CSS properties can be used to improve the working of Hammer.\n     * Add them to this method and they will be set when creating a new Manager.\n     * @namespace\n     */\n    cssProps: {\n        /**\n         * Disables text selection to improve the dragging gesture. Mainly for desktop browsers.\n         * @type {String}\n         * @default 'none'\n         */\n        userSelect: 'none',\n\n        /**\n         * Disable the Windows Phone grippers when pressing an element.\n         * @type {String}\n         * @default 'none'\n         */\n        touchSelect: 'none',\n\n        /**\n         * Disables the default callout shown when you touch and hold a touch target.\n         * On iOS, when you touch and hold a touch target such as a link, Safari displays\n         * a callout containing information about the link. This property allows you to disable that callout.\n         * @type {String}\n         * @default 'none'\n         */\n        touchCallout: 'none',\n\n        /**\n         * Specifies whether zooming is enabled. Used by IE10>\n         * @type {String}\n         * @default 'none'\n         */\n        contentZooming: 'none',\n\n        /**\n         * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers.\n         * @type {String}\n         * @default 'none'\n         */\n        userDrag: 'none',\n\n        /**\n         * Overrides the highlight color shown when the user taps a link or a JavaScript\n         * clickable element in iOS. This property obeys the alpha value, if specified.\n         * @type {String}\n         * @default 'rgba(0,0,0,0)'\n         */\n        tapHighlightColor: 'rgba(0,0,0,0)'\n    }\n};\n\nvar STOP = 1;\nvar FORCED_STOP = 2;\n\n/**\n * Manager\n * @param {HTMLElement} element\n * @param {Object} [options]\n * @constructor\n */\nfunction Manager(element, options) {\n    this.options = assign({}, Hammer.defaults, options || {});\n\n    this.options.inputTarget = this.options.inputTarget || element;\n\n    this.handlers = {};\n    this.session = {};\n    this.recognizers = [];\n    this.oldCssProps = {};\n\n    this.element = element;\n    this.input = createInputInstance(this);\n    this.touchAction = new TouchAction(this, this.options.touchAction);\n\n    toggleCssProps(this, true);\n\n    each(this.options.recognizers, function(item) {\n        var recognizer = this.add(new (item[0])(item[1]));\n        item[2] && recognizer.recognizeWith(item[2]);\n        item[3] && recognizer.requireFailure(item[3]);\n    }, this);\n}\n\nManager.prototype = {\n    /**\n     * set options\n     * @param {Object} options\n     * @returns {Manager}\n     */\n    set: function(options) {\n        assign(this.options, options);\n\n        // Options that need a little more setup\n        if (options.touchAction) {\n            this.touchAction.update();\n        }\n        if (options.inputTarget) {\n            // Clean up existing event listeners and reinitialize\n            this.input.destroy();\n            this.input.target = options.inputTarget;\n            this.input.init();\n        }\n        return this;\n    },\n\n    /**\n     * stop recognizing for this session.\n     * This session will be discarded, when a new [input]start event is fired.\n     * When forced, the recognizer cycle is stopped immediately.\n     * @param {Boolean} [force]\n     */\n    stop: function(force) {\n        this.session.stopped = force ? FORCED_STOP : STOP;\n    },\n\n    /**\n     * run the recognizers!\n     * called by the inputHandler function on every movement of the pointers (touches)\n     * it walks through all the recognizers and tries to detect the gesture that is being made\n     * @param {Object} inputData\n     */\n    recognize: function(inputData) {\n        var session = this.session;\n        if (session.stopped) {\n            return;\n        }\n\n        // run the touch-action polyfill\n        this.touchAction.preventDefaults(inputData);\n\n        var recognizer;\n        var recognizers = this.recognizers;\n\n        // this holds the recognizer that is being recognized.\n        // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED\n        // if no recognizer is detecting a thing, it is set to `null`\n        var curRecognizer = session.curRecognizer;\n\n        // reset when the last recognizer is recognized\n        // or when we're in a new session\n        if (!curRecognizer || (curRecognizer && curRecognizer.state & STATE_RECOGNIZED)) {\n            curRecognizer = session.curRecognizer = null;\n        }\n\n        var i = 0;\n        while (i < recognizers.length) {\n            recognizer = recognizers[i];\n\n            // find out if we are allowed try to recognize the input for this one.\n            // 1.   allow if the session is NOT forced stopped (see the .stop() method)\n            // 2.   allow if we still haven't recognized a gesture in this session, or the this recognizer is the one\n            //      that is being recognized.\n            // 3.   allow if the recognizer is allowed to run simultaneous with the current recognized recognizer.\n            //      this can be setup with the `recognizeWith()` method on the recognizer.\n            if (session.stopped !== FORCED_STOP && ( // 1\n                    !curRecognizer || recognizer == curRecognizer || // 2\n                    recognizer.canRecognizeWith(curRecognizer))) { // 3\n                recognizer.recognize(inputData);\n            } else {\n                recognizer.reset();\n            }\n\n            // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the\n            // current active recognizer. but only if we don't already have an active recognizer\n            if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) {\n                curRecognizer = session.curRecognizer = recognizer;\n            }\n            i++;\n        }\n    },\n\n    /**\n     * get a recognizer by its event name.\n     * @param {Recognizer|String} recognizer\n     * @returns {Recognizer|Null}\n     */\n    get: function(recognizer) {\n        if (recognizer instanceof Recognizer) {\n            return recognizer;\n        }\n\n        var recognizers = this.recognizers;\n        for (var i = 0; i < recognizers.length; i++) {\n            if (recognizers[i].options.event == recognizer) {\n                return recognizers[i];\n            }\n        }\n        return null;\n    },\n\n    /**\n     * add a recognizer to the manager\n     * existing recognizers with the same event name will be removed\n     * @param {Recognizer} recognizer\n     * @returns {Recognizer|Manager}\n     */\n    add: function(recognizer) {\n        if (invokeArrayArg(recognizer, 'add', this)) {\n            return this;\n        }\n\n        // remove existing\n        var existing = this.get(recognizer.options.event);\n        if (existing) {\n            this.remove(existing);\n        }\n\n        this.recognizers.push(recognizer);\n        recognizer.manager = this;\n\n        this.touchAction.update();\n        return recognizer;\n    },\n\n    /**\n     * remove a recognizer by name or instance\n     * @param {Recognizer|String} recognizer\n     * @returns {Manager}\n     */\n    remove: function(recognizer) {\n        if (invokeArrayArg(recognizer, 'remove', this)) {\n            return this;\n        }\n\n        recognizer = this.get(recognizer);\n\n        // let's make sure this recognizer exists\n        if (recognizer) {\n            var recognizers = this.recognizers;\n            var index = inArray(recognizers, recognizer);\n\n            if (index !== -1) {\n                recognizers.splice(index, 1);\n                this.touchAction.update();\n            }\n        }\n\n        return this;\n    },\n\n    /**\n     * bind event\n     * @param {String} events\n     * @param {Function} handler\n     * @returns {EventEmitter} this\n     */\n    on: function(events, handler) {\n        if (events === undefined) {\n            return;\n        }\n        if (handler === undefined) {\n            return;\n        }\n\n        var handlers = this.handlers;\n        each(splitStr(events), function(event) {\n            handlers[event] = handlers[event] || [];\n            handlers[event].push(handler);\n        });\n        return this;\n    },\n\n    /**\n     * unbind event, leave emit blank to remove all handlers\n     * @param {String} events\n     * @param {Function} [handler]\n     * @returns {EventEmitter} this\n     */\n    off: function(events, handler) {\n        if (events === undefined) {\n            return;\n        }\n\n        var handlers = this.handlers;\n        each(splitStr(events), function(event) {\n            if (!handler) {\n                delete handlers[event];\n            } else {\n                handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1);\n            }\n        });\n        return this;\n    },\n\n    /**\n     * emit event to the listeners\n     * @param {String} event\n     * @param {Object} data\n     */\n    emit: function(event, data) {\n        // we also want to trigger dom events\n        if (this.options.domEvents) {\n            triggerDomEvent(event, data);\n        }\n\n        // no handlers, so skip it all\n        var handlers = this.handlers[event] && this.handlers[event].slice();\n        if (!handlers || !handlers.length) {\n            return;\n        }\n\n        data.type = event;\n        data.preventDefault = function() {\n            data.srcEvent.preventDefault();\n        };\n\n        var i = 0;\n        while (i < handlers.length) {\n            handlers[i](data);\n            i++;\n        }\n    },\n\n    /**\n     * destroy the manager and unbinds all events\n     * it doesn't unbind dom events, that is the user own responsibility\n     */\n    destroy: function() {\n        this.element && toggleCssProps(this, false);\n\n        this.handlers = {};\n        this.session = {};\n        this.input.destroy();\n        this.element = null;\n    }\n};\n\n/**\n * add/remove the css properties as defined in manager.options.cssProps\n * @param {Manager} manager\n * @param {Boolean} add\n */\nfunction toggleCssProps(manager, add) {\n    var element = manager.element;\n    if (!element.style) {\n        return;\n    }\n    var prop;\n    each(manager.options.cssProps, function(value, name) {\n        prop = prefixed(element.style, name);\n        if (add) {\n            manager.oldCssProps[prop] = element.style[prop];\n            element.style[prop] = value;\n        } else {\n            element.style[prop] = manager.oldCssProps[prop] || '';\n        }\n    });\n    if (!add) {\n        manager.oldCssProps = {};\n    }\n}\n\n/**\n * trigger dom event\n * @param {String} event\n * @param {Object} data\n */\nfunction triggerDomEvent(event, data) {\n    var gestureEvent = document.createEvent('Event');\n    gestureEvent.initEvent(event, true, true);\n    gestureEvent.gesture = data;\n    data.target.dispatchEvent(gestureEvent);\n}\n\nassign(Hammer, {\n    INPUT_START: INPUT_START,\n    INPUT_MOVE: INPUT_MOVE,\n    INPUT_END: INPUT_END,\n    INPUT_CANCEL: INPUT_CANCEL,\n\n    STATE_POSSIBLE: STATE_POSSIBLE,\n    STATE_BEGAN: STATE_BEGAN,\n    STATE_CHANGED: STATE_CHANGED,\n    STATE_ENDED: STATE_ENDED,\n    STATE_RECOGNIZED: STATE_RECOGNIZED,\n    STATE_CANCELLED: STATE_CANCELLED,\n    STATE_FAILED: STATE_FAILED,\n\n    DIRECTION_NONE: DIRECTION_NONE,\n    DIRECTION_LEFT: DIRECTION_LEFT,\n    DIRECTION_RIGHT: DIRECTION_RIGHT,\n    DIRECTION_UP: DIRECTION_UP,\n    DIRECTION_DOWN: DIRECTION_DOWN,\n    DIRECTION_HORIZONTAL: DIRECTION_HORIZONTAL,\n    DIRECTION_VERTICAL: DIRECTION_VERTICAL,\n    DIRECTION_ALL: DIRECTION_ALL,\n\n    Manager: Manager,\n    Input: Input,\n    TouchAction: TouchAction,\n\n    TouchInput: TouchInput,\n    MouseInput: MouseInput,\n    PointerEventInput: PointerEventInput,\n    TouchMouseInput: TouchMouseInput,\n    SingleTouchInput: SingleTouchInput,\n\n    Recognizer: Recognizer,\n    AttrRecognizer: AttrRecognizer,\n    Tap: TapRecognizer,\n    Pan: PanRecognizer,\n    Swipe: SwipeRecognizer,\n    Pinch: PinchRecognizer,\n    Rotate: RotateRecognizer,\n    Press: PressRecognizer,\n\n    on: addEventListeners,\n    off: removeEventListeners,\n    each: each,\n    merge: merge,\n    extend: extend,\n    assign: assign,\n    inherit: inherit,\n    bindFn: bindFn,\n    prefixed: prefixed\n});\n\n// this prevents errors when Hammer is loaded in the presence of an AMD\n//  style loader but by script tag, not by the loader.\nvar freeGlobal = (typeof window !== 'undefined' ? window : (typeof self !== 'undefined' ? self : {})); // jshint ignore:line\nfreeGlobal.Hammer = Hammer;\n\nif (typeof define === 'function' && define.amd) {\n    define(function() {\n        return Hammer;\n    });\n} else if (typeof module != 'undefined' && module.exports) {\n    module.exports = Hammer;\n} else {\n    window[exportName] = Hammer;\n}\n\n})(window, document, 'Hammer');\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nfunction identity(x) {\n    return x;\n}\nexports.identity = identity;\n//# sourceMappingURL=identity.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar Subscriber_1 = require(\"../Subscriber\");\nfunction canReportError(observer) {\n    while (observer) {\n        var _a = observer, closed_1 = _a.closed, destination = _a.destination, isStopped = _a.isStopped;\n        if (closed_1 || isStopped) {\n            return false;\n        }\n        else if (destination && destination instanceof Subscriber_1.Subscriber) {\n            observer = destination;\n        }\n        else {\n            observer = null;\n        }\n    }\n    return true;\n}\nexports.canReportError = canReportError;\n//# sourceMappingURL=canReportError.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nvar isArray_1 = require(\"./util/isArray\");\nvar isObject_1 = require(\"./util/isObject\");\nvar isFunction_1 = require(\"./util/isFunction\");\nvar UnsubscriptionError_1 = require(\"./util/UnsubscriptionError\");\nvar Subscription = (function () {\n    function Subscription(unsubscribe) {\n        this.closed = false;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (unsubscribe) {\n            this._unsubscribe = unsubscribe;\n        }\n    }\n    Subscription.prototype.unsubscribe = function () {\n        var errors;\n        if (this.closed) {\n            return;\n        }\n        var _a = this, _parentOrParents = _a._parentOrParents, _unsubscribe = _a._unsubscribe, _subscriptions = _a._subscriptions;\n        this.closed = true;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (_parentOrParents instanceof Subscription) {\n            _parentOrParents.remove(this);\n        }\n        else if (_parentOrParents !== null) {\n            for (var index = 0; index < _parentOrParents.length; ++index) {\n                var parent_1 = _parentOrParents[index];\n                parent_1.remove(this);\n            }\n        }\n        if (isFunction_1.isFunction(_unsubscribe)) {\n            try {\n                _unsubscribe.call(this);\n            }\n            catch (e) {\n                errors = e instanceof UnsubscriptionError_1.UnsubscriptionError ? flattenUnsubscriptionErrors(e.errors) : [e];\n            }\n        }\n        if (isArray_1.isArray(_subscriptions)) {\n            var index = -1;\n            var len = _subscriptions.length;\n            while (++index < len) {\n                var sub = _subscriptions[index];\n                if (isObject_1.isObject(sub)) {\n                    try {\n                        sub.unsubscribe();\n                    }\n                    catch (e) {\n                        errors = errors || [];\n                        if (e instanceof UnsubscriptionError_1.UnsubscriptionError) {\n                            errors = errors.concat(flattenUnsubscriptionErrors(e.errors));\n                        }\n                        else {\n                            errors.push(e);\n                        }\n                    }\n                }\n            }\n        }\n        if (errors) {\n            throw new UnsubscriptionError_1.UnsubscriptionError(errors);\n        }\n    };\n    Subscription.prototype.add = function (teardown) {\n        var subscription = teardown;\n        if (!teardown) {\n            return Subscription.EMPTY;\n        }\n        switch (typeof teardown) {\n            case 'function':\n                subscription = new Subscription(teardown);\n            case 'object':\n                if (subscription === this || subscription.closed || typeof subscription.unsubscribe !== 'function') {\n                    return subscription;\n                }\n                else if (this.closed) {\n                    subscription.unsubscribe();\n                    return subscription;\n                }\n                else if (!(subscription instanceof Subscription)) {\n                    var tmp = subscription;\n                    subscription = new Subscription();\n                    subscription._subscriptions = [tmp];\n                }\n                break;\n            default: {\n                throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');\n            }\n        }\n        var _parentOrParents = subscription._parentOrParents;\n        if (_parentOrParents === null) {\n            subscription._parentOrParents = this;\n        }\n        else if (_parentOrParents instanceof Subscription) {\n            if (_parentOrParents === this) {\n                return subscription;\n            }\n            subscription._parentOrParents = [_parentOrParents, this];\n        }\n        else if (_parentOrParents.indexOf(this) === -1) {\n            _parentOrParents.push(this);\n        }\n        else {\n            return subscription;\n        }\n        var subscriptions = this._subscriptions;\n        if (subscriptions === null) {\n            this._subscriptions = [subscription];\n        }\n        else {\n            subscriptions.push(subscription);\n        }\n        return subscription;\n    };\n    Subscription.prototype.remove = function (subscription) {\n        var subscriptions = this._subscriptions;\n        if (subscriptions) {\n            var subscriptionIndex = subscriptions.indexOf(subscription);\n            if (subscriptionIndex !== -1) {\n                subscriptions.splice(subscriptionIndex, 1);\n            }\n        }\n    };\n    Subscription.EMPTY = (function (empty) {\n        empty.closed = true;\n        return empty;\n    }(new Subscription()));\n    return Subscription;\n}());\nexports.Subscription = Subscription;\nfunction flattenUnsubscriptionErrors(errors) {\n    return errors.reduce(function (errs, err) { return errs.concat((err instanceof UnsubscriptionError_1.UnsubscriptionError) ? err.errors : err); }, []);\n}\n//# sourceMappingURL=Subscription.js.map","export function isFunction(x) {\n    return typeof x === 'function';\n}\n//# sourceMappingURL=isFunction.js.map","let _enable_super_gross_mode_that_will_cause_bad_things = false;\nexport const config = {\n    Promise: undefined,\n    set useDeprecatedSynchronousErrorHandling(value) {\n        if (value) {\n            const error = new Error();\n            console.warn('DEPRECATED! RxJS was set to use deprecated synchronous error handling behavior by code at: \\n' + error.stack);\n        }\n        else if (_enable_super_gross_mode_that_will_cause_bad_things) {\n            console.log('RxJS: Back to a better error behavior. Thank you. <3');\n        }\n        _enable_super_gross_mode_that_will_cause_bad_things = value;\n    },\n    get useDeprecatedSynchronousErrorHandling() {\n        return _enable_super_gross_mode_that_will_cause_bad_things;\n    },\n};\n//# sourceMappingURL=config.js.map","export function hostReportError(err) {\n    setTimeout(() => { throw err; }, 0);\n}\n//# sourceMappingURL=hostReportError.js.map","import { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport const empty = {\n    closed: true,\n    next(value) { },\n    error(err) {\n        if (config.useDeprecatedSynchronousErrorHandling) {\n            throw err;\n        }\n        else {\n            hostReportError(err);\n        }\n    },\n    complete() { }\n};\n//# sourceMappingURL=Observer.js.map","export const isArray = (() => Array.isArray || ((x) => x && typeof x.length === 'number'))();\n//# sourceMappingURL=isArray.js.map","export function isObject(x) {\n    return x !== null && typeof x === 'object';\n}\n//# sourceMappingURL=isObject.js.map","const UnsubscriptionErrorImpl = (() => {\n    function UnsubscriptionErrorImpl(errors) {\n        Error.call(this);\n        this.message = errors ?\n            `${errors.length} errors occurred during unsubscription:\n${errors.map((err, i) => `${i + 1}) ${err.toString()}`).join('\\n  ')}` : '';\n        this.name = 'UnsubscriptionError';\n        this.errors = errors;\n        return this;\n    }\n    UnsubscriptionErrorImpl.prototype = Object.create(Error.prototype);\n    return UnsubscriptionErrorImpl;\n})();\nexport const UnsubscriptionError = UnsubscriptionErrorImpl;\n//# sourceMappingURL=UnsubscriptionError.js.map","import { isArray } from './util/isArray';\nimport { isObject } from './util/isObject';\nimport { isFunction } from './util/isFunction';\nimport { UnsubscriptionError } from './util/UnsubscriptionError';\nexport class Subscription {\n    constructor(unsubscribe) {\n        this.closed = false;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (unsubscribe) {\n            this._unsubscribe = unsubscribe;\n        }\n    }\n    unsubscribe() {\n        let errors;\n        if (this.closed) {\n            return;\n        }\n        let { _parentOrParents, _unsubscribe, _subscriptions } = this;\n        this.closed = true;\n        this._parentOrParents = null;\n        this._subscriptions = null;\n        if (_parentOrParents instanceof Subscription) {\n            _parentOrParents.remove(this);\n        }\n        else if (_parentOrParents !== null) {\n            for (let index = 0; index < _parentOrParents.length; ++index) {\n                const parent = _parentOrParents[index];\n                parent.remove(this);\n            }\n        }\n        if (isFunction(_unsubscribe)) {\n            try {\n                _unsubscribe.call(this);\n            }\n            catch (e) {\n                errors = e instanceof UnsubscriptionError ? flattenUnsubscriptionErrors(e.errors) : [e];\n            }\n        }\n        if (isArray(_subscriptions)) {\n            let index = -1;\n            let len = _subscriptions.length;\n            while (++index < len) {\n                const sub = _subscriptions[index];\n                if (isObject(sub)) {\n                    try {\n                        sub.unsubscribe();\n                    }\n                    catch (e) {\n                        errors = errors || [];\n                        if (e instanceof UnsubscriptionError) {\n                            errors = errors.concat(flattenUnsubscriptionErrors(e.errors));\n                        }\n                        else {\n                            errors.push(e);\n                        }\n                    }\n                }\n            }\n        }\n        if (errors) {\n            throw new UnsubscriptionError(errors);\n        }\n    }\n    add(teardown) {\n        let subscription = teardown;\n        if (!teardown) {\n            return Subscription.EMPTY;\n        }\n        switch (typeof teardown) {\n            case 'function':\n                subscription = new Subscription(teardown);\n            case 'object':\n                if (subscription === this || subscription.closed || typeof subscription.unsubscribe !== 'function') {\n                    return subscription;\n                }\n                else if (this.closed) {\n                    subscription.unsubscribe();\n                    return subscription;\n                }\n                else if (!(subscription instanceof Subscription)) {\n                    const tmp = subscription;\n                    subscription = new Subscription();\n                    subscription._subscriptions = [tmp];\n                }\n                break;\n            default: {\n                throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');\n            }\n        }\n        let { _parentOrParents } = subscription;\n        if (_parentOrParents === null) {\n            subscription._parentOrParents = this;\n        }\n        else if (_parentOrParents instanceof Subscription) {\n            if (_parentOrParents === this) {\n                return subscription;\n            }\n            subscription._parentOrParents = [_parentOrParents, this];\n        }\n        else if (_parentOrParents.indexOf(this) === -1) {\n            _parentOrParents.push(this);\n        }\n        else {\n            return subscription;\n        }\n        const subscriptions = this._subscriptions;\n        if (subscriptions === null) {\n            this._subscriptions = [subscription];\n        }\n        else {\n            subscriptions.push(subscription);\n        }\n        return subscription;\n    }\n    remove(subscription) {\n        const subscriptions = this._subscriptions;\n        if (subscriptions) {\n            const subscriptionIndex = subscriptions.indexOf(subscription);\n            if (subscriptionIndex !== -1) {\n                subscriptions.splice(subscriptionIndex, 1);\n            }\n        }\n    }\n}\nSubscription.EMPTY = (function (empty) {\n    empty.closed = true;\n    return empty;\n}(new Subscription()));\nfunction flattenUnsubscriptionErrors(errors) {\n    return errors.reduce((errs, err) => errs.concat((err instanceof UnsubscriptionError) ? err.errors : err), []);\n}\n//# sourceMappingURL=Subscription.js.map","export const rxSubscriber = (() => typeof Symbol === 'function'\n    ? Symbol('rxSubscriber')\n    : '@@rxSubscriber_' + Math.random())();\nexport const $$rxSubscriber = rxSubscriber;\n//# sourceMappingURL=rxSubscriber.js.map","import { isFunction } from './util/isFunction';\nimport { empty as emptyObserver } from './Observer';\nimport { Subscription } from './Subscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nimport { config } from './config';\nimport { hostReportError } from './util/hostReportError';\nexport class Subscriber extends Subscription {\n    constructor(destinationOrNext, error, complete) {\n        super();\n        this.syncErrorValue = null;\n        this.syncErrorThrown = false;\n        this.syncErrorThrowable = false;\n        this.isStopped = false;\n        switch (arguments.length) {\n            case 0:\n                this.destination = emptyObserver;\n                break;\n            case 1:\n                if (!destinationOrNext) {\n                    this.destination = emptyObserver;\n                    break;\n                }\n                if (typeof destinationOrNext === 'object') {\n                    if (destinationOrNext instanceof Subscriber) {\n                        this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;\n                        this.destination = destinationOrNext;\n                        destinationOrNext.add(this);\n                    }\n                    else {\n                        this.syncErrorThrowable = true;\n                        this.destination = new SafeSubscriber(this, destinationOrNext);\n                    }\n                    break;\n                }\n            default:\n                this.syncErrorThrowable = true;\n                this.destination = new SafeSubscriber(this, destinationOrNext, error, complete);\n                break;\n        }\n    }\n    [rxSubscriberSymbol]() { return this; }\n    static create(next, error, complete) {\n        const subscriber = new Subscriber(next, error, complete);\n        subscriber.syncErrorThrowable = false;\n        return subscriber;\n    }\n    next(value) {\n        if (!this.isStopped) {\n            this._next(value);\n        }\n    }\n    error(err) {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._error(err);\n        }\n    }\n    complete() {\n        if (!this.isStopped) {\n            this.isStopped = true;\n            this._complete();\n        }\n    }\n    unsubscribe() {\n        if (this.closed) {\n            return;\n        }\n        this.isStopped = true;\n        super.unsubscribe();\n    }\n    _next(value) {\n        this.destination.next(value);\n    }\n    _error(err) {\n        this.destination.error(err);\n        this.unsubscribe();\n    }\n    _complete() {\n        this.destination.complete();\n        this.unsubscribe();\n    }\n    _unsubscribeAndRecycle() {\n        const { _parentOrParents } = this;\n        this._parentOrParents = null;\n        this.unsubscribe();\n        this.closed = false;\n        this.isStopped = false;\n        this._parentOrParents = _parentOrParents;\n        return this;\n    }\n}\nexport class SafeSubscriber extends Subscriber {\n    constructor(_parentSubscriber, observerOrNext, error, complete) {\n        super();\n        this._parentSubscriber = _parentSubscriber;\n        let next;\n        let context = this;\n        if (isFunction(observerOrNext)) {\n            next = observerOrNext;\n        }\n        else if (observerOrNext) {\n            next = observerOrNext.next;\n            error = observerOrNext.error;\n            complete = observerOrNext.complete;\n            if (observerOrNext !== emptyObserver) {\n                context = Object.create(observerOrNext);\n                if (isFunction(context.unsubscribe)) {\n                    this.add(context.unsubscribe.bind(context));\n                }\n                context.unsubscribe = this.unsubscribe.bind(this);\n            }\n        }\n        this._context = context;\n        this._next = next;\n        this._error = error;\n        this._complete = complete;\n    }\n    next(value) {\n        if (!this.isStopped && this._next) {\n            const { _parentSubscriber } = this;\n            if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                this.__tryOrUnsub(this._next, value);\n            }\n            else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {\n                this.unsubscribe();\n            }\n        }\n    }\n    error(err) {\n        if (!this.isStopped) {\n            const { _parentSubscriber } = this;\n            const { useDeprecatedSynchronousErrorHandling } = config;\n            if (this._error) {\n                if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(this._error, err);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, this._error, err);\n                    this.unsubscribe();\n                }\n            }\n            else if (!_parentSubscriber.syncErrorThrowable) {\n                this.unsubscribe();\n                if (useDeprecatedSynchronousErrorHandling) {\n                    throw err;\n                }\n                hostReportError(err);\n            }\n            else {\n                if (useDeprecatedSynchronousErrorHandling) {\n                    _parentSubscriber.syncErrorValue = err;\n                    _parentSubscriber.syncErrorThrown = true;\n                }\n                else {\n                    hostReportError(err);\n                }\n                this.unsubscribe();\n            }\n        }\n    }\n    complete() {\n        if (!this.isStopped) {\n            const { _parentSubscriber } = this;\n            if (this._complete) {\n                const wrappedComplete = () => this._complete.call(this._context);\n                if (!config.useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {\n                    this.__tryOrUnsub(wrappedComplete);\n                    this.unsubscribe();\n                }\n                else {\n                    this.__tryOrSetError(_parentSubscriber, wrappedComplete);\n                    this.unsubscribe();\n                }\n            }\n            else {\n                this.unsubscribe();\n            }\n        }\n    }\n    __tryOrUnsub(fn, value) {\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            this.unsubscribe();\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                throw err;\n            }\n            else {\n                hostReportError(err);\n            }\n        }\n    }\n    __tryOrSetError(parent, fn, value) {\n        if (!config.useDeprecatedSynchronousErrorHandling) {\n            throw new Error('bad call');\n        }\n        try {\n            fn.call(this._context, value);\n        }\n        catch (err) {\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                parent.syncErrorValue = err;\n                parent.syncErrorThrown = true;\n                return true;\n            }\n            else {\n                hostReportError(err);\n                return true;\n            }\n        }\n        return false;\n    }\n    _unsubscribe() {\n        const { _parentSubscriber } = this;\n        this._context = null;\n        this._parentSubscriber = null;\n        _parentSubscriber.unsubscribe();\n    }\n}\n//# sourceMappingURL=Subscriber.js.map","export const observable = (() => typeof Symbol === 'function' && Symbol.observable || '@@observable')();\n//# sourceMappingURL=observable.js.map","export function identity(x) {\n    return x;\n}\n//# sourceMappingURL=identity.js.map","import { canReportError } from './util/canReportError';\nimport { toSubscriber } from './util/toSubscriber';\nimport { observable as Symbol_observable } from './symbol/observable';\nimport { pipeFromArray } from './util/pipe';\nimport { config } from './config';\nexport class Observable {\n    constructor(subscribe) {\n        this._isScalar = false;\n        if (subscribe) {\n            this._subscribe = subscribe;\n        }\n    }\n    lift(operator) {\n        const observable = new Observable();\n        observable.source = this;\n        observable.operator = operator;\n        return observable;\n    }\n    subscribe(observerOrNext, error, complete) {\n        const { operator } = this;\n        const sink = toSubscriber(observerOrNext, error, complete);\n        if (operator) {\n            sink.add(operator.call(sink, this.source));\n        }\n        else {\n            sink.add(this.source || (config.useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable) ?\n                this._subscribe(sink) :\n                this._trySubscribe(sink));\n        }\n        if (config.useDeprecatedSynchronousErrorHandling) {\n            if (sink.syncErrorThrowable) {\n                sink.syncErrorThrowable = false;\n                if (sink.syncErrorThrown) {\n                    throw sink.syncErrorValue;\n                }\n            }\n        }\n        return sink;\n    }\n    _trySubscribe(sink) {\n        try {\n            return this._subscribe(sink);\n        }\n        catch (err) {\n            if (config.useDeprecatedSynchronousErrorHandling) {\n                sink.syncErrorThrown = true;\n                sink.syncErrorValue = err;\n            }\n            if (canReportError(sink)) {\n                sink.error(err);\n            }\n            else {\n                console.warn(err);\n            }\n        }\n    }\n    forEach(next, promiseCtor) {\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor((resolve, reject) => {\n            let subscription;\n            subscription = this.subscribe((value) => {\n                try {\n                    next(value);\n                }\n                catch (err) {\n                    reject(err);\n                    if (subscription) {\n                        subscription.unsubscribe();\n                    }\n                }\n            }, reject, resolve);\n        });\n    }\n    _subscribe(subscriber) {\n        const { source } = this;\n        return source && source.subscribe(subscriber);\n    }\n    [Symbol_observable]() {\n        return this;\n    }\n    pipe(...operations) {\n        if (operations.length === 0) {\n            return this;\n        }\n        return pipeFromArray(operations)(this);\n    }\n    toPromise(promiseCtor) {\n        promiseCtor = getPromiseCtor(promiseCtor);\n        return new promiseCtor((resolve, reject) => {\n            let value;\n            this.subscribe((x) => value = x, (err) => reject(err), () => resolve(value));\n        });\n    }\n}\nObservable.create = (subscribe) => {\n    return new Observable(subscribe);\n};\nfunction getPromiseCtor(promiseCtor) {\n    if (!promiseCtor) {\n        promiseCtor = config.Promise || Promise;\n    }\n    if (!promiseCtor) {\n        throw new Error('no Promise impl found');\n    }\n    return promiseCtor;\n}\n//# sourceMappingURL=Observable.js.map","import { Subscriber } from '../Subscriber';\nimport { rxSubscriber as rxSubscriberSymbol } from '../symbol/rxSubscriber';\nimport { empty as emptyObserver } from '../Observer';\nexport function toSubscriber(nextOrObserver, error, complete) {\n    if (nextOrObserver) {\n        if (nextOrObserver instanceof Subscriber) {\n            return nextOrObserver;\n        }\n        if (nextOrObserver[rxSubscriberSymbol]) {\n            return nextOrObserver[rxSubscriberSymbol]();\n        }\n    }\n    if (!nextOrObserver && !error && !complete) {\n        return new Subscriber(emptyObserver);\n    }\n    return new Subscriber(nextOrObserver, error, complete);\n}\n//# sourceMappingURL=toSubscriber.js.map","import { Subscriber } from '../Subscriber';\nexport function canReportError(observer) {\n    while (observer) {\n        const { closed, destination, isStopped } = observer;\n        if (closed || isStopped) {\n            return false;\n        }\n        else if (destination && destination instanceof Subscriber) {\n            observer = destination;\n        }\n        else {\n            observer = null;\n        }\n    }\n    return true;\n}\n//# sourceMappingURL=canReportError.js.map","import { identity } from './identity';\nexport function pipe(...fns) {\n    return pipeFromArray(fns);\n}\nexport function pipeFromArray(fns) {\n    if (fns.length === 0) {\n        return identity;\n    }\n    if (fns.length === 1) {\n        return fns[0];\n    }\n    return function piped(input) {\n        return fns.reduce((prev, fn) => fn(prev), input);\n    };\n}\n//# sourceMappingURL=pipe.js.map","const ObjectUnsubscribedErrorImpl = (() => {\n    function ObjectUnsubscribedErrorImpl() {\n        Error.call(this);\n        this.message = 'object unsubscribed';\n        this.name = 'ObjectUnsubscribedError';\n        return this;\n    }\n    ObjectUnsubscribedErrorImpl.prototype = Object.create(Error.prototype);\n    return ObjectUnsubscribedErrorImpl;\n})();\nexport const ObjectUnsubscribedError = ObjectUnsubscribedErrorImpl;\n//# sourceMappingURL=ObjectUnsubscribedError.js.map","import { Observable } from './Observable';\nimport { Subscriber } from './Subscriber';\nimport { Subscription } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nimport { rxSubscriber as rxSubscriberSymbol } from '../internal/symbol/rxSubscriber';\nexport class SubjectSubscriber extends Subscriber {\n    constructor(destination) {\n        super(destination);\n        this.destination = destination;\n    }\n}\nexport class Subject extends Observable {\n    constructor() {\n        super();\n        this.observers = [];\n        this.closed = false;\n        this.isStopped = false;\n        this.hasError = false;\n        this.thrownError = null;\n    }\n    [rxSubscriberSymbol]() {\n        return new SubjectSubscriber(this);\n    }\n    lift(operator) {\n        const subject = new AnonymousSubject(this, this);\n        subject.operator = operator;\n        return subject;\n    }\n    next(value) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        if (!this.isStopped) {\n            const { observers } = this;\n            const len = observers.length;\n            const copy = observers.slice();\n            for (let i = 0; i < len; i++) {\n                copy[i].next(value);\n            }\n        }\n    }\n    error(err) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        this.hasError = true;\n        this.thrownError = err;\n        this.isStopped = true;\n        const { observers } = this;\n        const len = observers.length;\n        const copy = observers.slice();\n        for (let i = 0; i < len; i++) {\n            copy[i].error(err);\n        }\n        this.observers.length = 0;\n    }\n    complete() {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        this.isStopped = true;\n        const { observers } = this;\n        const len = observers.length;\n        const copy = observers.slice();\n        for (let i = 0; i < len; i++) {\n            copy[i].complete();\n        }\n        this.observers.length = 0;\n    }\n    unsubscribe() {\n        this.isStopped = true;\n        this.closed = true;\n        this.observers = null;\n    }\n    _trySubscribe(subscriber) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else {\n            return super._trySubscribe(subscriber);\n        }\n    }\n    _subscribe(subscriber) {\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else if (this.hasError) {\n            subscriber.error(this.thrownError);\n            return Subscription.EMPTY;\n        }\n        else if (this.isStopped) {\n            subscriber.complete();\n            return Subscription.EMPTY;\n        }\n        else {\n            this.observers.push(subscriber);\n            return new SubjectSubscription(this, subscriber);\n        }\n    }\n    asObservable() {\n        const observable = new Observable();\n        observable.source = this;\n        return observable;\n    }\n}\nSubject.create = (destination, source) => {\n    return new AnonymousSubject(destination, source);\n};\nexport class AnonymousSubject extends Subject {\n    constructor(destination, source) {\n        super();\n        this.destination = destination;\n        this.source = source;\n    }\n    next(value) {\n        const { destination } = this;\n        if (destination && destination.next) {\n            destination.next(value);\n        }\n    }\n    error(err) {\n        const { destination } = this;\n        if (destination && destination.error) {\n            this.destination.error(err);\n        }\n    }\n    complete() {\n        const { destination } = this;\n        if (destination && destination.complete) {\n            this.destination.complete();\n        }\n    }\n    _subscribe(subscriber) {\n        const { source } = this;\n        if (source) {\n            return this.source.subscribe(subscriber);\n        }\n        else {\n            return Subscription.EMPTY;\n        }\n    }\n}\n//# sourceMappingURL=Subject.js.map","import { Subscription } from './Subscription';\nexport class SubjectSubscription extends Subscription {\n    constructor(subject, subscriber) {\n        super();\n        this.subject = subject;\n        this.subscriber = subscriber;\n        this.closed = false;\n    }\n    unsubscribe() {\n        if (this.closed) {\n            return;\n        }\n        this.closed = true;\n        const subject = this.subject;\n        const observers = subject.observers;\n        this.subject = null;\n        if (!observers || observers.length === 0 || subject.isStopped || subject.closed) {\n            return;\n        }\n        const subscriberIndex = observers.indexOf(this.subscriber);\n        if (subscriberIndex !== -1) {\n            observers.splice(subscriberIndex, 1);\n        }\n    }\n}\n//# sourceMappingURL=SubjectSubscription.js.map","export function isScheduler(value) {\n    return value && typeof value.schedule === 'function';\n}\n//# sourceMappingURL=isScheduler.js.map","import { Subscriber } from './Subscriber';\nexport class InnerSubscriber extends Subscriber {\n    constructor(parent, outerValue, outerIndex) {\n        super();\n        this.parent = parent;\n        this.outerValue = outerValue;\n        this.outerIndex = outerIndex;\n        this.index = 0;\n    }\n    _next(value) {\n        this.parent.notifyNext(this.outerValue, value, this.outerIndex, this.index++, this);\n    }\n    _error(error) {\n        this.parent.notifyError(error, this);\n        this.unsubscribe();\n    }\n    _complete() {\n        this.parent.notifyComplete(this);\n        this.unsubscribe();\n    }\n}\n//# sourceMappingURL=InnerSubscriber.js.map","export const subscribeToArray = (array) => (subscriber) => {\n    for (let i = 0, len = array.length; i < len && !subscriber.closed; i++) {\n        subscriber.next(array[i]);\n    }\n    subscriber.complete();\n};\n//# sourceMappingURL=subscribeToArray.js.map","export function getSymbolIterator() {\n    if (typeof Symbol !== 'function' || !Symbol.iterator) {\n        return '@@iterator';\n    }\n    return Symbol.iterator;\n}\nexport const iterator = getSymbolIterator();\nexport const $$iterator = iterator;\n//# sourceMappingURL=iterator.js.map","export const isArrayLike = ((x) => x && typeof x.length === 'number' && typeof x !== 'function');\n//# sourceMappingURL=isArrayLike.js.map","export function isPromise(value) {\n    return !!value && typeof value.subscribe !== 'function' && typeof value.then === 'function';\n}\n//# sourceMappingURL=isPromise.js.map","import { subscribeToArray } from './subscribeToArray';\nimport { subscribeToPromise } from './subscribeToPromise';\nimport { subscribeToIterable } from './subscribeToIterable';\nimport { subscribeToObservable } from './subscribeToObservable';\nimport { isArrayLike } from './isArrayLike';\nimport { isPromise } from './isPromise';\nimport { isObject } from './isObject';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport const subscribeTo = (result) => {\n    if (!!result && typeof result[Symbol_observable] === 'function') {\n        return subscribeToObservable(result);\n    }\n    else if (isArrayLike(result)) {\n        return subscribeToArray(result);\n    }\n    else if (isPromise(result)) {\n        return subscribeToPromise(result);\n    }\n    else if (!!result && typeof result[Symbol_iterator] === 'function') {\n        return subscribeToIterable(result);\n    }\n    else {\n        const value = isObject(result) ? 'an invalid object' : `'${result}'`;\n        const msg = `You provided ${value} where a stream was expected.`\n            + ' You can provide an Observable, Promise, Array, or Iterable.';\n        throw new TypeError(msg);\n    }\n};\n//# sourceMappingURL=subscribeTo.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport const subscribeToObservable = (obj) => (subscriber) => {\n    const obs = obj[Symbol_observable]();\n    if (typeof obs.subscribe !== 'function') {\n        throw new TypeError('Provided object does not correctly implement Symbol.observable');\n    }\n    else {\n        return obs.subscribe(subscriber);\n    }\n};\n//# sourceMappingURL=subscribeToObservable.js.map","import { hostReportError } from './hostReportError';\nexport const subscribeToPromise = (promise) => (subscriber) => {\n    promise.then((value) => {\n        if (!subscriber.closed) {\n            subscriber.next(value);\n            subscriber.complete();\n        }\n    }, (err) => subscriber.error(err))\n        .then(null, hostReportError);\n    return subscriber;\n};\n//# sourceMappingURL=subscribeToPromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport const subscribeToIterable = (iterable) => (subscriber) => {\n    const iterator = iterable[Symbol_iterator]();\n    do {\n        const item = iterator.next();\n        if (item.done) {\n            subscriber.complete();\n            break;\n        }\n        subscriber.next(item.value);\n        if (subscriber.closed) {\n            break;\n        }\n    } while (true);\n    if (typeof iterator.return === 'function') {\n        subscriber.add(() => {\n            if (iterator.return) {\n                iterator.return();\n            }\n        });\n    }\n    return subscriber;\n};\n//# sourceMappingURL=subscribeToIterable.js.map","import { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeTo } from './subscribeTo';\nimport { Observable } from '../Observable';\nexport function subscribeToResult(outerSubscriber, result, outerValue, outerIndex, innerSubscriber = new InnerSubscriber(outerSubscriber, outerValue, outerIndex)) {\n    if (innerSubscriber.closed) {\n        return undefined;\n    }\n    if (result instanceof Observable) {\n        return result.subscribe(innerSubscriber);\n    }\n    return subscribeTo(result)(innerSubscriber);\n}\n//# sourceMappingURL=subscribeToResult.js.map","import { Subscriber } from './Subscriber';\nexport class OuterSubscriber extends Subscriber {\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(innerValue);\n    }\n    notifyError(error, innerSub) {\n        this.destination.error(error);\n    }\n    notifyComplete(innerSub) {\n        this.destination.complete();\n    }\n}\n//# sourceMappingURL=OuterSubscriber.js.map","import { Subscriber } from '../Subscriber';\nexport function map(project, thisArg) {\n    return function mapOperation(source) {\n        if (typeof project !== 'function') {\n            throw new TypeError('argument is not a function. Are you looking for `mapTo()`?');\n        }\n        return source.lift(new MapOperator(project, thisArg));\n    };\n}\nexport class MapOperator {\n    constructor(project, thisArg) {\n        this.project = project;\n        this.thisArg = thisArg;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new MapSubscriber(subscriber, this.project, this.thisArg));\n    }\n}\nclass MapSubscriber extends Subscriber {\n    constructor(destination, project, thisArg) {\n        super(destination);\n        this.project = project;\n        this.count = 0;\n        this.thisArg = thisArg || this;\n    }\n    _next(value) {\n        let result;\n        try {\n            result = this.project.call(this.thisArg, value, this.count++);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    }\n}\n//# sourceMappingURL=map.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function scheduleArray(input, scheduler) {\n    return new Observable(subscriber => {\n        const sub = new Subscription();\n        let i = 0;\n        sub.add(scheduler.schedule(function () {\n            if (i === input.length) {\n                subscriber.complete();\n                return;\n            }\n            subscriber.next(input[i++]);\n            if (!subscriber.closed) {\n                sub.add(this.schedule());\n            }\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleArray.js.map","import { Observable } from '../Observable';\nimport { subscribeTo } from '../util/subscribeTo';\nimport { scheduled } from '../scheduled/scheduled';\nexport function from(input, scheduler) {\n    if (!scheduler) {\n        if (input instanceof Observable) {\n            return input;\n        }\n        return new Observable(subscribeTo(input));\n    }\n    else {\n        return scheduled(input, scheduler);\n    }\n}\n//# sourceMappingURL=from.js.map","import { scheduleObservable } from './scheduleObservable';\nimport { schedulePromise } from './schedulePromise';\nimport { scheduleArray } from './scheduleArray';\nimport { scheduleIterable } from './scheduleIterable';\nimport { isInteropObservable } from '../util/isInteropObservable';\nimport { isPromise } from '../util/isPromise';\nimport { isArrayLike } from '../util/isArrayLike';\nimport { isIterable } from '../util/isIterable';\nexport function scheduled(input, scheduler) {\n    if (input != null) {\n        if (isInteropObservable(input)) {\n            return scheduleObservable(input, scheduler);\n        }\n        else if (isPromise(input)) {\n            return schedulePromise(input, scheduler);\n        }\n        else if (isArrayLike(input)) {\n            return scheduleArray(input, scheduler);\n        }\n        else if (isIterable(input) || typeof input === 'string') {\n            return scheduleIterable(input, scheduler);\n        }\n    }\n    throw new TypeError((input !== null && typeof input || input) + ' is not observable');\n}\n//# sourceMappingURL=scheduled.js.map","import { observable as Symbol_observable } from '../symbol/observable';\nexport function isInteropObservable(input) {\n    return input && typeof input[Symbol_observable] === 'function';\n}\n//# sourceMappingURL=isInteropObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { observable as Symbol_observable } from '../symbol/observable';\nexport function scheduleObservable(input, scheduler) {\n    return new Observable(subscriber => {\n        const sub = new Subscription();\n        sub.add(scheduler.schedule(() => {\n            const observable = input[Symbol_observable]();\n            sub.add(observable.subscribe({\n                next(value) { sub.add(scheduler.schedule(() => subscriber.next(value))); },\n                error(err) { sub.add(scheduler.schedule(() => subscriber.error(err))); },\n                complete() { sub.add(scheduler.schedule(() => subscriber.complete())); },\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleObservable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nexport function schedulePromise(input, scheduler) {\n    return new Observable(subscriber => {\n        const sub = new Subscription();\n        sub.add(scheduler.schedule(() => input.then(value => {\n            sub.add(scheduler.schedule(() => {\n                subscriber.next(value);\n                sub.add(scheduler.schedule(() => subscriber.complete()));\n            }));\n        }, err => {\n            sub.add(scheduler.schedule(() => subscriber.error(err)));\n        })));\n        return sub;\n    });\n}\n//# sourceMappingURL=schedulePromise.js.map","import { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function isIterable(input) {\n    return input && typeof input[Symbol_iterator] === 'function';\n}\n//# sourceMappingURL=isIterable.js.map","import { Observable } from '../Observable';\nimport { Subscription } from '../Subscription';\nimport { iterator as Symbol_iterator } from '../symbol/iterator';\nexport function scheduleIterable(input, scheduler) {\n    if (!input) {\n        throw new Error('Iterable cannot be null');\n    }\n    return new Observable(subscriber => {\n        const sub = new Subscription();\n        let iterator;\n        sub.add(() => {\n            if (iterator && typeof iterator.return === 'function') {\n                iterator.return();\n            }\n        });\n        sub.add(scheduler.schedule(() => {\n            iterator = input[Symbol_iterator]();\n            sub.add(scheduler.schedule(function () {\n                if (subscriber.closed) {\n                    return;\n                }\n                let value;\n                let done;\n                try {\n                    const result = iterator.next();\n                    value = result.value;\n                    done = result.done;\n                }\n                catch (err) {\n                    subscriber.error(err);\n                    return;\n                }\n                if (done) {\n                    subscriber.complete();\n                }\n                else {\n                    subscriber.next(value);\n                    this.schedule();\n                }\n            }));\n        }));\n        return sub;\n    });\n}\n//# sourceMappingURL=scheduleIterable.js.map","import { subscribeToResult } from '../util/subscribeToResult';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { map } from './map';\nimport { from } from '../observable/from';\nexport function mergeMap(project, resultSelector, concurrent = Number.POSITIVE_INFINITY) {\n    if (typeof resultSelector === 'function') {\n        return (source) => source.pipe(mergeMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii))), concurrent));\n    }\n    else if (typeof resultSelector === 'number') {\n        concurrent = resultSelector;\n    }\n    return (source) => source.lift(new MergeMapOperator(project, concurrent));\n}\nexport class MergeMapOperator {\n    constructor(project, concurrent = Number.POSITIVE_INFINITY) {\n        this.project = project;\n        this.concurrent = concurrent;\n    }\n    call(observer, source) {\n        return source.subscribe(new MergeMapSubscriber(observer, this.project, this.concurrent));\n    }\n}\nexport class MergeMapSubscriber extends OuterSubscriber {\n    constructor(destination, project, concurrent = Number.POSITIVE_INFINITY) {\n        super(destination);\n        this.project = project;\n        this.concurrent = concurrent;\n        this.hasCompleted = false;\n        this.buffer = [];\n        this.active = 0;\n        this.index = 0;\n    }\n    _next(value) {\n        if (this.active < this.concurrent) {\n            this._tryNext(value);\n        }\n        else {\n            this.buffer.push(value);\n        }\n    }\n    _tryNext(value) {\n        let result;\n        const index = this.index++;\n        try {\n            result = this.project(value, index);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.active++;\n        this._innerSub(result, value, index);\n    }\n    _innerSub(ish, value, index) {\n        const innerSubscriber = new InnerSubscriber(this, value, index);\n        const destination = this.destination;\n        destination.add(innerSubscriber);\n        const innerSubscription = subscribeToResult(this, ish, undefined, undefined, innerSubscriber);\n        if (innerSubscription !== innerSubscriber) {\n            destination.add(innerSubscription);\n        }\n    }\n    _complete() {\n        this.hasCompleted = true;\n        if (this.active === 0 && this.buffer.length === 0) {\n            this.destination.complete();\n        }\n        this.unsubscribe();\n    }\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(innerValue);\n    }\n    notifyComplete(innerSub) {\n        const buffer = this.buffer;\n        this.remove(innerSub);\n        this.active--;\n        if (buffer.length > 0) {\n            this._next(buffer.shift());\n        }\n        else if (this.active === 0 && this.hasCompleted) {\n            this.destination.complete();\n        }\n    }\n}\n//# sourceMappingURL=mergeMap.js.map","import { mergeMap } from './mergeMap';\nimport { identity } from '../util/identity';\nexport function mergeAll(concurrent = Number.POSITIVE_INFINITY) {\n    return mergeMap(identity, concurrent);\n}\n//# sourceMappingURL=mergeAll.js.map","import { Observable } from '../Observable';\nimport { subscribeToArray } from '../util/subscribeToArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function fromArray(input, scheduler) {\n    if (!scheduler) {\n        return new Observable(subscribeToArray(input));\n    }\n    else {\n        return scheduleArray(input, scheduler);\n    }\n}\n//# sourceMappingURL=fromArray.js.map","import { Observable } from '../Observable';\nimport { isScheduler } from '../util/isScheduler';\nimport { mergeAll } from '../operators/mergeAll';\nimport { fromArray } from './fromArray';\nexport function merge(...observables) {\n    let concurrent = Number.POSITIVE_INFINITY;\n    let scheduler = null;\n    let last = observables[observables.length - 1];\n    if (isScheduler(last)) {\n        scheduler = observables.pop();\n        if (observables.length > 1 && typeof observables[observables.length - 1] === 'number') {\n            concurrent = observables.pop();\n        }\n    }\n    else if (typeof last === 'number') {\n        concurrent = observables.pop();\n    }\n    if (scheduler === null && observables.length === 1 && observables[0] instanceof Observable) {\n        return observables[0];\n    }\n    return mergeAll(concurrent)(fromArray(observables, scheduler));\n}\n//# sourceMappingURL=merge.js.map","import { Subscriber } from '../Subscriber';\nexport function refCount() {\n    return function refCountOperatorFunction(source) {\n        return source.lift(new RefCountOperator(source));\n    };\n}\nclass RefCountOperator {\n    constructor(connectable) {\n        this.connectable = connectable;\n    }\n    call(subscriber, source) {\n        const { connectable } = this;\n        connectable._refCount++;\n        const refCounter = new RefCountSubscriber(subscriber, connectable);\n        const subscription = source.subscribe(refCounter);\n        if (!refCounter.closed) {\n            refCounter.connection = connectable.connect();\n        }\n        return subscription;\n    }\n}\nclass RefCountSubscriber extends Subscriber {\n    constructor(destination, connectable) {\n        super(destination);\n        this.connectable = connectable;\n    }\n    _unsubscribe() {\n        const { connectable } = this;\n        if (!connectable) {\n            this.connection = null;\n            return;\n        }\n        this.connectable = null;\n        const refCount = connectable._refCount;\n        if (refCount <= 0) {\n            this.connection = null;\n            return;\n        }\n        connectable._refCount = refCount - 1;\n        if (refCount > 1) {\n            this.connection = null;\n            return;\n        }\n        const { connection } = this;\n        const sharedConnection = connectable._connection;\n        this.connection = null;\n        if (sharedConnection && (!connection || sharedConnection === connection)) {\n            sharedConnection.unsubscribe();\n        }\n    }\n}\n//# sourceMappingURL=refCount.js.map","import { SubjectSubscriber } from '../Subject';\nimport { Observable } from '../Observable';\nimport { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nimport { refCount as higherOrderRefCount } from '../operators/refCount';\nexport class ConnectableObservable extends Observable {\n    constructor(source, subjectFactory) {\n        super();\n        this.source = source;\n        this.subjectFactory = subjectFactory;\n        this._refCount = 0;\n        this._isComplete = false;\n    }\n    _subscribe(subscriber) {\n        return this.getSubject().subscribe(subscriber);\n    }\n    getSubject() {\n        const subject = this._subject;\n        if (!subject || subject.isStopped) {\n            this._subject = this.subjectFactory();\n        }\n        return this._subject;\n    }\n    connect() {\n        let connection = this._connection;\n        if (!connection) {\n            this._isComplete = false;\n            connection = this._connection = new Subscription();\n            connection.add(this.source\n                .subscribe(new ConnectableSubscriber(this.getSubject(), this)));\n            if (connection.closed) {\n                this._connection = null;\n                connection = Subscription.EMPTY;\n            }\n        }\n        return connection;\n    }\n    refCount() {\n        return higherOrderRefCount()(this);\n    }\n}\nexport const connectableObservableDescriptor = (() => {\n    const connectableProto = ConnectableObservable.prototype;\n    return {\n        operator: { value: null },\n        _refCount: { value: 0, writable: true },\n        _subject: { value: null, writable: true },\n        _connection: { value: null, writable: true },\n        _subscribe: { value: connectableProto._subscribe },\n        _isComplete: { value: connectableProto._isComplete, writable: true },\n        getSubject: { value: connectableProto.getSubject },\n        connect: { value: connectableProto.connect },\n        refCount: { value: connectableProto.refCount }\n    };\n})();\nclass ConnectableSubscriber extends SubjectSubscriber {\n    constructor(destination, connectable) {\n        super(destination);\n        this.connectable = connectable;\n    }\n    _error(err) {\n        this._unsubscribe();\n        super._error(err);\n    }\n    _complete() {\n        this.connectable._isComplete = true;\n        this._unsubscribe();\n        super._complete();\n    }\n    _unsubscribe() {\n        const connectable = this.connectable;\n        if (connectable) {\n            this.connectable = null;\n            const connection = connectable._connection;\n            connectable._refCount = 0;\n            connectable._subject = null;\n            connectable._connection = null;\n            if (connection) {\n                connection.unsubscribe();\n            }\n        }\n    }\n}\nclass RefCountOperator {\n    constructor(connectable) {\n        this.connectable = connectable;\n    }\n    call(subscriber, source) {\n        const { connectable } = this;\n        connectable._refCount++;\n        const refCounter = new RefCountSubscriber(subscriber, connectable);\n        const subscription = source.subscribe(refCounter);\n        if (!refCounter.closed) {\n            refCounter.connection = connectable.connect();\n        }\n        return subscription;\n    }\n}\nclass RefCountSubscriber extends Subscriber {\n    constructor(destination, connectable) {\n        super(destination);\n        this.connectable = connectable;\n    }\n    _unsubscribe() {\n        const { connectable } = this;\n        if (!connectable) {\n            this.connection = null;\n            return;\n        }\n        this.connectable = null;\n        const refCount = connectable._refCount;\n        if (refCount <= 0) {\n            this.connection = null;\n            return;\n        }\n        connectable._refCount = refCount - 1;\n        if (refCount > 1) {\n            this.connection = null;\n            return;\n        }\n        const { connection } = this;\n        const sharedConnection = connectable._connection;\n        this.connection = null;\n        if (sharedConnection && (!connection || sharedConnection === connection)) {\n            sharedConnection.unsubscribe();\n        }\n    }\n}\n//# sourceMappingURL=ConnectableObservable.js.map","import { multicast } from './multicast';\nimport { refCount } from './refCount';\nimport { Subject } from '../Subject';\nfunction shareSubjectFactory() {\n    return new Subject();\n}\nexport function share() {\n    return (source) => refCount()(multicast(shareSubjectFactory)(source));\n}\n//# sourceMappingURL=share.js.map","import { connectableObservableDescriptor } from '../observable/ConnectableObservable';\nexport function multicast(subjectOrSubjectFactory, selector) {\n    return function multicastOperatorFunction(source) {\n        let subjectFactory;\n        if (typeof subjectOrSubjectFactory === 'function') {\n            subjectFactory = subjectOrSubjectFactory;\n        }\n        else {\n            subjectFactory = function subjectFactory() {\n                return subjectOrSubjectFactory;\n            };\n        }\n        if (typeof selector === 'function') {\n            return source.lift(new MulticastOperator(subjectFactory, selector));\n        }\n        const connectable = Object.create(source, connectableObservableDescriptor);\n        connectable.source = source;\n        connectable.subjectFactory = subjectFactory;\n        return connectable;\n    };\n}\nexport class MulticastOperator {\n    constructor(subjectFactory, selector) {\n        this.subjectFactory = subjectFactory;\n        this.selector = selector;\n    }\n    call(subscriber, source) {\n        const { selector } = this;\n        const subject = this.subjectFactory();\n        const subscription = selector(subject).subscribe(subscriber);\n        subscription.add(source.subscribe(subject));\n        return subscription;\n    }\n}\n//# sourceMappingURL=multicast.js.map","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { Subject, Subscription, Observable, merge as merge$1 } from 'rxjs';\nimport { share } from 'rxjs/operators';\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Convince closure compiler that the wrapped function has no side-effects.\n *\n * Closure compiler always assumes that `toString` has no side-effects. We use this quirk to\n * allow us to execute a function but have closure compiler mark the call as no-side-effects.\n * It is important that the return value for the `noSideEffects` function be assigned\n * to something which is retained otherwise the call to `noSideEffects` will be removed by closure\n * compiler.\n */\nfunction noSideEffects(fn) {\n    return { toString: fn }.toString();\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst ANNOTATIONS = '__annotations__';\nconst PARAMETERS = '__parameters__';\nconst PROP_METADATA = '__prop__metadata__';\n/**\n * @suppress {globalThis}\n */\nfunction makeDecorator(name, props, parentClass, additionalProcessing, typeFn) {\n    return noSideEffects(() => {\n        const metaCtor = makeMetadataCtor(props);\n        function DecoratorFactory(...args) {\n            if (this instanceof DecoratorFactory) {\n                metaCtor.call(this, ...args);\n                return this;\n            }\n            const annotationInstance = new DecoratorFactory(...args);\n            return function TypeDecorator(cls) {\n                if (typeFn)\n                    typeFn(cls, ...args);\n                // Use of Object.defineProperty is important since it creates non-enumerable property which\n                // prevents the property is copied during subclassing.\n                const annotations = cls.hasOwnProperty(ANNOTATIONS) ?\n                    cls[ANNOTATIONS] :\n                    Object.defineProperty(cls, ANNOTATIONS, { value: [] })[ANNOTATIONS];\n                annotations.push(annotationInstance);\n                if (additionalProcessing)\n                    additionalProcessing(cls);\n                return cls;\n            };\n        }\n        if (parentClass) {\n            DecoratorFactory.prototype = Object.create(parentClass.prototype);\n        }\n        DecoratorFactory.prototype.ngMetadataName = name;\n        DecoratorFactory.annotationCls = DecoratorFactory;\n        return DecoratorFactory;\n    });\n}\nfunction makeMetadataCtor(props) {\n    return function ctor(...args) {\n        if (props) {\n            const values = props(...args);\n            for (const propName in values) {\n                this[propName] = values[propName];\n            }\n        }\n    };\n}\nfunction makeParamDecorator(name, props, parentClass) {\n    return noSideEffects(() => {\n        const metaCtor = makeMetadataCtor(props);\n        function ParamDecoratorFactory(...args) {\n            if (this instanceof ParamDecoratorFactory) {\n                metaCtor.apply(this, args);\n                return this;\n            }\n            const annotationInstance = new ParamDecoratorFactory(...args);\n            ParamDecorator.annotation = annotationInstance;\n            return ParamDecorator;\n            function ParamDecorator(cls, unusedKey, index) {\n                // Use of Object.defineProperty is important since it creates non-enumerable property which\n                // prevents the property is copied during subclassing.\n                const parameters = cls.hasOwnProperty(PARAMETERS) ?\n                    cls[PARAMETERS] :\n                    Object.defineProperty(cls, PARAMETERS, { value: [] })[PARAMETERS];\n                // there might be gaps if some in between parameters do not have annotations.\n                // we pad with nulls.\n                while (parameters.length <= index) {\n                    parameters.push(null);\n                }\n                (parameters[index] = parameters[index] || []).push(annotationInstance);\n                return cls;\n            }\n        }\n        if (parentClass) {\n            ParamDecoratorFactory.prototype = Object.create(parentClass.prototype);\n        }\n        ParamDecoratorFactory.prototype.ngMetadataName = name;\n        ParamDecoratorFactory.annotationCls = ParamDecoratorFactory;\n        return ParamDecoratorFactory;\n    });\n}\nfunction makePropDecorator(name, props, parentClass, additionalProcessing) {\n    return noSideEffects(() => {\n        const metaCtor = makeMetadataCtor(props);\n        function PropDecoratorFactory(...args) {\n            if (this instanceof PropDecoratorFactory) {\n                metaCtor.apply(this, args);\n                return this;\n            }\n            const decoratorInstance = new PropDecoratorFactory(...args);\n            function PropDecorator(target, name) {\n                const constructor = target.constructor;\n                // Use of Object.defineProperty is important since it creates non-enumerable property which\n                // prevents the property is copied during subclassing.\n                const meta = constructor.hasOwnProperty(PROP_METADATA) ?\n                    constructor[PROP_METADATA] :\n                    Object.defineProperty(constructor, PROP_METADATA, { value: {} })[PROP_METADATA];\n                meta[name] = meta.hasOwnProperty(name) && meta[name] || [];\n                meta[name].unshift(decoratorInstance);\n                if (additionalProcessing)\n                    additionalProcessing(target, name, ...args);\n            }\n            return PropDecorator;\n        }\n        if (parentClass) {\n            PropDecoratorFactory.prototype = Object.create(parentClass.prototype);\n        }\n        PropDecoratorFactory.prototype.ngMetadataName = name;\n        PropDecoratorFactory.annotationCls = PropDecoratorFactory;\n        return PropDecoratorFactory;\n    });\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/metadata.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Type of the Inject decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction InjectDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ0 = /**\n * @param {?} token\n * @return {?}\n */\n(token) => ({ token });\n/**\n * Inject decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Inject = makeParamDecorator('Inject', (ɵ0));\n/**\n * Type of the Optional decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction OptionalDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * Optional decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Optional = makeParamDecorator('Optional');\n/**\n * Type of the Self decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction SelfDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * Self decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Self = makeParamDecorator('Self');\n/**\n * Type of the SkipSelf decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction SkipSelfDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * SkipSelf decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst SkipSelf = makeParamDecorator('SkipSelf');\n/**\n * Type of the Host decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction HostDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * Host decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Host = makeParamDecorator('Host');\n/**\n * Type of the Attribute decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction AttributeDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ1 = /**\n * @param {?=} attributeName\n * @return {?}\n */\n(attributeName) => ({ attributeName });\n/**\n * Attribute decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Attribute = makeParamDecorator('Attribute', (ɵ1));\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Injection flags for DI.\n *\n * @publicApi\n */\nvar InjectFlags;\n(function (InjectFlags) {\n    // TODO(alxhub): make this 'const' when ngc no longer writes exports of it into ngfactory files.\n    /** Check self and check parent injector if needed */\n    InjectFlags[InjectFlags[\"Default\"] = 0] = \"Default\";\n    /**\n     * Specifies that an injector should retrieve a dependency from any injector until reaching the\n     * host element of the current component. (Only used with Element Injector)\n     */\n    InjectFlags[InjectFlags[\"Host\"] = 1] = \"Host\";\n    /** Don't ascend to ancestors of the node requesting injection. */\n    InjectFlags[InjectFlags[\"Self\"] = 2] = \"Self\";\n    /** Skip the node that is requesting injection. */\n    InjectFlags[InjectFlags[\"SkipSelf\"] = 4] = \"SkipSelf\";\n    /** Inject `defaultValue` instead if token not found. */\n    InjectFlags[InjectFlags[\"Optional\"] = 8] = \"Optional\";\n})(InjectFlags || (InjectFlags = {}));\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction getClosureSafeProperty(objWithPropertyToExtract) {\n    for (let key in objWithPropertyToExtract) {\n        if (objWithPropertyToExtract[key] === getClosureSafeProperty) {\n            return key;\n        }\n    }\n    throw Error('Could not find renamed property on target object.');\n}\n/**\n * Sets properties on a target object from a source object, but only if\n * the property doesn't already exist on the target object.\n * @param target The target to set properties on\n * @param source The source of the property keys and values to set\n */\nfunction fillProperties(target, source) {\n    for (const key in source) {\n        if (source.hasOwnProperty(key) && !target.hasOwnProperty(key)) {\n            target[key] = source[key];\n        }\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Construct an `InjectableDef` which defines how a token will be constructed by the DI system, and\n * in which injectors (if any) it will be available.\n *\n * This should be assigned to a static `ɵprov` field on a type, which will then be an\n * `InjectableType`.\n *\n * Options:\n * * `providedIn` determines which injectors will include the injectable, by either associating it\n *   with an `@NgModule` or other `InjectorType`, or by specifying that this injectable should be\n *   provided in the `'root'` injector, which will be the application-level injector in most apps.\n * * `factory` gives the zero argument function which will create an instance of the injectable.\n *   The factory can call `inject` to access the `Injector` and request injection of dependencies.\n *\n * @codeGenApi\n */\nfunction ɵɵdefineInjectable(opts) {\n    return {\n        token: opts.token,\n        providedIn: opts.providedIn || null,\n        factory: opts.factory,\n        value: undefined,\n    };\n}\n/**\n * @deprecated in v8, delete after v10. This API should be used only be generated code, and that\n * code should now use ɵɵdefineInjectable instead.\n * @publicApi\n */\nconst defineInjectable = ɵɵdefineInjectable;\n/**\n * Construct an `InjectorDef` which configures an injector.\n *\n * This should be assigned to a static injector def (`ɵinj`) field on a type, which will then be an\n * `InjectorType`.\n *\n * Options:\n *\n * * `factory`: an `InjectorType` is an instantiable type, so a zero argument `factory` function to\n *   create the type must be provided. If that factory function needs to inject arguments, it can\n *   use the `inject` function.\n * * `providers`: an optional array of providers to add to the injector. Each provider must\n *   either have a factory or point to a type which has a `ɵprov` static property (the\n *   type must be an `InjectableType`).\n * * `imports`: an optional array of imports of other `InjectorType`s or `InjectorTypeWithModule`s\n *   whose providers will also be added to the injector. Locally provided types will override\n *   providers from imports.\n *\n * @publicApi\n */\nfunction ɵɵdefineInjector(options) {\n    return {\n        factory: options.factory,\n        providers: options.providers || [],\n        imports: options.imports || [],\n    };\n}\n/**\n * Read the injectable def (`ɵprov`) for `type` in a way which is immune to accidentally reading\n * inherited value.\n *\n * @param type A type which may have its own (non-inherited) `ɵprov`.\n */\nfunction getInjectableDef(type) {\n    return getOwnDefinition(type, type[NG_PROV_DEF]) ||\n        getOwnDefinition(type, type[NG_INJECTABLE_DEF]);\n}\n/**\n * Return `def` only if it is defined directly on `type` and is not inherited from a base\n * class of `type`.\n *\n * The function `Object.hasOwnProperty` is not sufficient to distinguish this case because in older\n * browsers (e.g. IE10) static property inheritance is implemented by copying the properties.\n *\n * Instead, the definition's `token` is compared to the `type`, and if they don't match then the\n * property was not defined directly on the type itself, and was likely inherited. The definition\n * is only returned if the `type` matches the `def.token`.\n */\nfunction getOwnDefinition(type, def) {\n    return def && def.token === type ? def : null;\n}\n/**\n * Read the injectable def (`ɵprov`) for `type` or read the `ɵprov` from one of its ancestors.\n *\n * @param type A type which may have `ɵprov`, via inheritance.\n *\n * @deprecated Will be removed in v10, where an error will occur in the scenario if we find the\n * `ɵprov` on an ancestor only.\n */\nfunction getInheritedInjectableDef(type) {\n    // See `jit/injectable.ts#compileInjectable` for context on NG_PROV_DEF_FALLBACK.\n    const def = type &&\n        (type[NG_PROV_DEF] || type[NG_INJECTABLE_DEF] ||\n            (type[NG_PROV_DEF_FALLBACK] && type[NG_PROV_DEF_FALLBACK]()));\n    if (def) {\n        const typeName = getTypeName(type);\n        // TODO(FW-1307): Re-add ngDevMode when closure can handle it\n        // ngDevMode &&\n        console.warn(`DEPRECATED: DI is instantiating a token \"${typeName}\" that inherits its @Injectable decorator but does not provide one itself.\\n` +\n            `This will become an error in v10. Please add @Injectable() to the \"${typeName}\" class.`);\n        return def;\n    }\n    else {\n        return null;\n    }\n}\n/** Gets the name of a type, accounting for some cross-browser differences. */\nfunction getTypeName(type) {\n    // `Function.prototype.name` behaves differently between IE and other browsers. In most browsers\n    // it'll always return the name of the function itself, no matter how many other functions it\n    // inherits from. On IE the function doesn't have its own `name` property, but it takes it from\n    // the lowest level in the prototype chain. E.g. if we have `class Foo extends Parent` most\n    // browsers will evaluate `Foo.name` to `Foo` while IE will return `Parent`. We work around\n    // the issue by converting the function to a string and parsing its name out that way via a regex.\n    if (type.hasOwnProperty('name')) {\n        return type.name;\n    }\n    const match = ('' + type).match(/^function\\s*([^\\s(]+)/);\n    return match === null ? '' : match[1];\n}\n/**\n * Read the injector def type in a way which is immune to accidentally reading inherited value.\n *\n * @param type type which may have an injector def (`ɵinj`)\n */\nfunction getInjectorDef(type) {\n    return type && (type.hasOwnProperty(NG_INJ_DEF) || type.hasOwnProperty(NG_INJECTOR_DEF)) ?\n        type[NG_INJ_DEF] :\n        null;\n}\nconst NG_PROV_DEF = getClosureSafeProperty({ ɵprov: getClosureSafeProperty });\nconst NG_INJ_DEF = getClosureSafeProperty({ ɵinj: getClosureSafeProperty });\n// On IE10 properties defined via `defineProperty` won't be inherited by child classes,\n// which will break inheriting the injectable definition from a grandparent through an\n// undecorated parent class. We work around it by defining a fallback method which will be\n// used to retrieve the definition. This should only be a problem in JIT mode, because in\n// AOT TypeScript seems to have a workaround for static properties. When inheriting from an\n// undecorated parent is no longer supported in v10, this can safely be removed.\nconst NG_PROV_DEF_FALLBACK = getClosureSafeProperty({ ɵprovFallback: getClosureSafeProperty });\n// We need to keep these around so we can read off old defs if new defs are unavailable\nconst NG_INJECTABLE_DEF = getClosureSafeProperty({ ngInjectableDef: getClosureSafeProperty });\nconst NG_INJECTOR_DEF = getClosureSafeProperty({ ngInjectorDef: getClosureSafeProperty });\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction stringify(token) {\n    if (typeof token === 'string') {\n        return token;\n    }\n    if (Array.isArray(token)) {\n        return '[' + token.map(stringify).join(', ') + ']';\n    }\n    if (token == null) {\n        return '' + token;\n    }\n    if (token.overriddenName) {\n        return `${token.overriddenName}`;\n    }\n    if (token.name) {\n        return `${token.name}`;\n    }\n    const res = token.toString();\n    if (res == null) {\n        return '' + res;\n    }\n    const newLineIndex = res.indexOf('\\n');\n    return newLineIndex === -1 ? res : res.substring(0, newLineIndex);\n}\n/**\n * Concatenates two strings with separator, allocating new strings only when necessary.\n *\n * @param before before string.\n * @param separator separator string.\n * @param after after string.\n * @returns concatenated string.\n */\nfunction concatStringsWithSpace(before, after) {\n    return (before == null || before === '') ?\n        (after === null ? '' : after) :\n        ((after == null || after === '') ? before : before + ' ' + after);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/forward_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An interface that a function passed into {\\@link forwardRef} has to implement.\n *\n * \\@usageNotes\n * ### Example\n *\n * {\\@example core/di/ts/forward_ref/forward_ref_spec.ts region='forward_ref_fn'}\n * \\@publicApi\n * @record\n */\nfunction ForwardRefFn() { }\n/** @type {?} */\nconst __forward_ref__ = getClosureSafeProperty({ __forward_ref__: getClosureSafeProperty });\n/**\n * Allows to refer to references which are not yet defined.\n *\n * For instance, `forwardRef` is used when the `token` which we need to refer to for the purposes of\n * DI is declared, but not yet defined. It is also used when the `token` which we use when creating\n * a query is not yet defined.\n *\n * \\@usageNotes\n * ### Example\n * {\\@example core/di/ts/forward_ref/forward_ref_spec.ts region='forward_ref'}\n * \\@publicApi\n * @param {?} forwardRefFn\n * @return {?}\n */\nfunction forwardRef(forwardRefFn) {\n    ((/** @type {?} */ (forwardRefFn))).__forward_ref__ = forwardRef;\n    ((/** @type {?} */ (forwardRefFn))).toString = (/**\n     * @return {?}\n     */\n    function () {\n        return stringify(this());\n    });\n    return ((/** @type {?} */ ((/** @type {?} */ (forwardRefFn)))));\n}\n/**\n * Lazily retrieves the reference value from a forwardRef.\n *\n * Acts as the identity function when given a non-forward-ref value.\n *\n * \\@usageNotes\n * ### Example\n *\n * {\\@example core/di/ts/forward_ref/forward_ref_spec.ts region='resolve_forward_ref'}\n *\n * @see `forwardRef`\n * \\@publicApi\n * @template T\n * @param {?} type\n * @return {?}\n */\nfunction resolveForwardRef(type) {\n    return isForwardRef(type) ? type() : type;\n}\n/**\n * Checks whether a function is wrapped by a `forwardRef`.\n * @param {?} fn\n * @return {?}\n */\nfunction isForwardRef(fn) {\n    return typeof fn === 'function' && fn.hasOwnProperty(__forward_ref__) &&\n        fn.__forward_ref__ === forwardRef;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst __globalThis = typeof globalThis !== 'undefined' && globalThis;\nconst __window = typeof window !== 'undefined' && window;\nconst __self = typeof self !== 'undefined' && typeof WorkerGlobalScope !== 'undefined' &&\n    self instanceof WorkerGlobalScope && self;\nconst __global = typeof global !== 'undefined' && global;\n// Always use __globalThis if available, which is the spec-defined global variable across all\n// environments, then fallback to __global first, because in Node tests both __global and\n// __window may be defined and _global should be __global in that case.\nconst _global = __globalThis || __global || __window || __self;\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nvar R3ResolvedDependencyType;\n(function (R3ResolvedDependencyType) {\n    R3ResolvedDependencyType[R3ResolvedDependencyType[\"Token\"] = 0] = \"Token\";\n    R3ResolvedDependencyType[R3ResolvedDependencyType[\"Attribute\"] = 1] = \"Attribute\";\n    R3ResolvedDependencyType[R3ResolvedDependencyType[\"ChangeDetectorRef\"] = 2] = \"ChangeDetectorRef\";\n    R3ResolvedDependencyType[R3ResolvedDependencyType[\"Invalid\"] = 3] = \"Invalid\";\n})(R3ResolvedDependencyType || (R3ResolvedDependencyType = {}));\nvar R3FactoryTarget;\n(function (R3FactoryTarget) {\n    R3FactoryTarget[R3FactoryTarget[\"Directive\"] = 0] = \"Directive\";\n    R3FactoryTarget[R3FactoryTarget[\"Component\"] = 1] = \"Component\";\n    R3FactoryTarget[R3FactoryTarget[\"Injectable\"] = 2] = \"Injectable\";\n    R3FactoryTarget[R3FactoryTarget[\"Pipe\"] = 3] = \"Pipe\";\n    R3FactoryTarget[R3FactoryTarget[\"NgModule\"] = 4] = \"NgModule\";\n})(R3FactoryTarget || (R3FactoryTarget = {}));\nvar ViewEncapsulation;\n(function (ViewEncapsulation) {\n    ViewEncapsulation[ViewEncapsulation[\"Emulated\"] = 0] = \"Emulated\";\n    ViewEncapsulation[ViewEncapsulation[\"Native\"] = 1] = \"Native\";\n    ViewEncapsulation[ViewEncapsulation[\"None\"] = 2] = \"None\";\n    ViewEncapsulation[ViewEncapsulation[\"ShadowDom\"] = 3] = \"ShadowDom\";\n})(ViewEncapsulation || (ViewEncapsulation = {}));\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction getCompilerFacade() {\n    const globalNg = _global['ng'];\n    if (!globalNg || !globalNg.ɵcompilerFacade) {\n        throw new Error(`Angular JIT compilation failed: '@angular/compiler' not loaded!\\n` +\n            `  - JIT compilation is discouraged for production use-cases! Consider AOT mode instead.\\n` +\n            `  - Did you bootstrap using '@angular/platform-browser-dynamic' or '@angular/platform-server'?\\n` +\n            `  - Alternatively provide the compiler with 'import \"@angular/compiler\";' before bootstrapping.`);\n    }\n    return globalNg.ɵcompilerFacade;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/fields.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst NG_COMP_DEF = getClosureSafeProperty({ ɵcmp: getClosureSafeProperty });\n/** @type {?} */\nconst NG_DIR_DEF = getClosureSafeProperty({ ɵdir: getClosureSafeProperty });\n/** @type {?} */\nconst NG_PIPE_DEF = getClosureSafeProperty({ ɵpipe: getClosureSafeProperty });\n/** @type {?} */\nconst NG_MOD_DEF = getClosureSafeProperty({ ɵmod: getClosureSafeProperty });\n/** @type {?} */\nconst NG_LOC_ID_DEF = getClosureSafeProperty({ ɵloc: getClosureSafeProperty });\n/** @type {?} */\nconst NG_FACTORY_DEF = getClosureSafeProperty({ ɵfac: getClosureSafeProperty });\n// TODO(misko): This is wrong. The NG_ELEMENT_ID should never be minified.\n/**\n * If a directive is diPublic, bloomAdd sets a property on the type with this constant as\n * the key and the directive's unique ID as the value. This allows us to map directives to their\n * bloom filter bit for DI.\n * @type {?}\n */\nconst NG_ELEMENT_ID = getClosureSafeProperty({ __NG_ELEMENT_ID__: getClosureSafeProperty });\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction ngDevModeResetPerfCounters() {\n    const locationString = typeof location !== 'undefined' ? location.toString() : '';\n    const newCounters = {\n        namedConstructors: locationString.indexOf('ngDevMode=namedConstructors') != -1,\n        firstCreatePass: 0,\n        tNode: 0,\n        tView: 0,\n        rendererCreateTextNode: 0,\n        rendererSetText: 0,\n        rendererCreateElement: 0,\n        rendererAddEventListener: 0,\n        rendererSetAttribute: 0,\n        rendererRemoveAttribute: 0,\n        rendererSetProperty: 0,\n        rendererSetClassName: 0,\n        rendererAddClass: 0,\n        rendererRemoveClass: 0,\n        rendererSetStyle: 0,\n        rendererRemoveStyle: 0,\n        rendererDestroy: 0,\n        rendererDestroyNode: 0,\n        rendererMoveNode: 0,\n        rendererRemoveNode: 0,\n        rendererAppendChild: 0,\n        rendererInsertBefore: 0,\n        rendererCreateComment: 0,\n    };\n    // Make sure to refer to ngDevMode as ['ngDevMode'] for closure.\n    const allowNgDevModeTrue = locationString.indexOf('ngDevMode=false') === -1;\n    _global['ngDevMode'] = allowNgDevModeTrue && newCounters;\n    return newCounters;\n}\n/**\n * This function checks to see if the `ngDevMode` has been set. If yes,\n * then we honor it, otherwise we default to dev mode with additional checks.\n *\n * The idea is that unless we are doing production build where we explicitly\n * set `ngDevMode == false` we should be helping the developer by providing\n * as much early warning and errors as possible.\n *\n * `ɵɵdefineComponent` is guaranteed to have been called before any component template functions\n * (and thus Ivy instructions), so a single initialization there is sufficient to ensure ngDevMode\n * is defined for the entire instruction set.\n *\n * When using checking `ngDevMode` on toplevel, always init it before referencing it\n * (e.g. `((typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode())`), otherwise you can\n *  get a `ReferenceError` like in https://github.com/angular/angular/issues/31595.\n *\n * Details on possible values for `ngDevMode` can be found on its docstring.\n *\n * NOTE:\n * - changes to the `ngDevMode` name must be synced with `compiler-cli/src/tooling.ts`.\n */\nfunction initNgDevMode() {\n    // The below checks are to ensure that calling `initNgDevMode` multiple times does not\n    // reset the counters.\n    // If the `ngDevMode` is not an object, then it means we have not created the perf counters\n    // yet.\n    if (typeof ngDevMode === 'undefined' || ngDevMode) {\n        if (typeof ngDevMode !== 'object') {\n            ngDevModeResetPerfCounters();\n        }\n        return !!ngDevMode;\n    }\n    return false;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/injection_token.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Creates a token that can be used in a DI Provider.\n *\n * Use an `InjectionToken` whenever the type you are injecting is not reified (does not have a\n * runtime representation) such as when injecting an interface, callable type, array or\n * parameterized type.\n *\n * `InjectionToken` is parameterized on `T` which is the type of object which will be returned by\n * the `Injector`. This provides additional level of type safety.\n *\n * ```\n * interface MyInterface {...}\n * var myInterface = injector.get(new InjectionToken<MyInterface>('SomeToken'));\n * // myInterface is inferred to be MyInterface.\n * ```\n *\n * When creating an `InjectionToken`, you can optionally specify a factory function which returns\n * (possibly by creating) a default value of the parameterized type `T`. This sets up the\n * `InjectionToken` using this factory as a provider as if it was defined explicitly in the\n * application's root injector. If the factory function, which takes zero arguments, needs to inject\n * dependencies, it can do so using the `inject` function. See below for an example.\n *\n * Additionally, if a `factory` is specified you can also specify the `providedIn` option, which\n * overrides the above behavior and marks the token as belonging to a particular `\\@NgModule`. As\n * mentioned above, `'root'` is the default value for `providedIn`.\n *\n * \\@usageNotes\n * ### Basic Example\n *\n * ### Plain InjectionToken\n *\n * {\\@example core/di/ts/injector_spec.ts region='InjectionToken'}\n *\n * ### Tree-shakable InjectionToken\n *\n * {\\@example core/di/ts/injector_spec.ts region='ShakableInjectionToken'}\n *\n *\n * \\@publicApi\n * @template T\n */\nclass InjectionToken {\n    /**\n     * @param {?} _desc\n     * @param {?=} options\n     */\n    constructor(_desc, options) {\n        this._desc = _desc;\n        /**\n         * \\@internal\n         */\n        this.ngMetadataName = 'InjectionToken';\n        this.ɵprov = undefined;\n        if (typeof options == 'number') {\n            // This is a special hack to assign __NG_ELEMENT_ID__ to this instance.\n            // __NG_ELEMENT_ID__ is Used by Ivy to determine bloom filter id.\n            // We are using it to assign `-1` which is used to identify `Injector`.\n            ((/** @type {?} */ (this))).__NG_ELEMENT_ID__ = options;\n        }\n        else if (options !== undefined) {\n            this.ɵprov = ɵɵdefineInjectable({\n                token: this,\n                providedIn: options.providedIn || 'root',\n                factory: options.factory,\n            });\n        }\n    }\n    /**\n     * @return {?}\n     */\n    toString() {\n        return `InjectionToken ${this._desc}`;\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    InjectionToken.prototype.ngMetadataName;\n    /** @type {?} */\n    InjectionToken.prototype.ɵprov;\n    /**\n     * @type {?}\n     * @protected\n     */\n    InjectionToken.prototype._desc;\n}\n/**\n * @record\n * @template T\n */\nfunction InjectableDefToken() { }\nif (false) {\n    /** @type {?} */\n    InjectableDefToken.prototype.ɵprov;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/injector_compatibility.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An InjectionToken that gets the current `Injector` for `createInjector()`-style injectors.\n *\n * Requesting this token instead of `Injector` allows `StaticInjector` to be tree-shaken from a\n * project.\n *\n * \\@publicApi\n * @type {?}\n */\nconst INJECTOR = new InjectionToken('INJECTOR', (/** @type {?} */ (-1)));\n/** @type {?} */\nconst _THROW_IF_NOT_FOUND = {};\n/** @type {?} */\nconst THROW_IF_NOT_FOUND = _THROW_IF_NOT_FOUND;\n/** @type {?} */\nconst NG_TEMP_TOKEN_PATH = 'ngTempTokenPath';\n/** @type {?} */\nconst NG_TOKEN_PATH = 'ngTokenPath';\n/** @type {?} */\nconst NEW_LINE = /\\n/gm;\n/** @type {?} */\nconst NO_NEW_LINE = 'ɵ';\n/** @type {?} */\nconst SOURCE = '__source';\nconst ɵ0$1 = getClosureSafeProperty;\n/** @type {?} */\nconst USE_VALUE = getClosureSafeProperty({ provide: String, useValue: ɵ0$1 });\n/**\n * Current injector value used by `inject`.\n * - `undefined`: it is an error to call `inject`\n * - `null`: `inject` can be called but there is no injector (limp-mode).\n * - Injector instance: Use the injector for resolution.\n * @type {?}\n */\nlet _currentInjector = undefined;\n/**\n * @param {?} injector\n * @return {?}\n */\nfunction setCurrentInjector(injector) {\n    /** @type {?} */\n    const former = _currentInjector;\n    _currentInjector = injector;\n    return former;\n}\n/**\n * Current implementation of inject.\n *\n * By default, it is `injectInjectorOnly`, which makes it `Injector`-only aware. It can be changed\n * to `directiveInject`, which brings in the `NodeInjector` system of ivy. It is designed this\n * way for two reasons:\n *  1. `Injector` should not depend on ivy logic.\n *  2. To maintain tree shake-ability we don't want to bring in unnecessary code.\n * @type {?}\n */\nlet _injectImplementation;\n/**\n * Sets the current inject implementation.\n * @param {?} impl\n * @return {?}\n */\nfunction setInjectImplementation(impl) {\n    /** @type {?} */\n    const previous = _injectImplementation;\n    _injectImplementation = impl;\n    return previous;\n}\n/**\n * @template T\n * @param {?} token\n * @param {?=} flags\n * @return {?}\n */\nfunction injectInjectorOnly(token, flags = InjectFlags.Default) {\n    if (_currentInjector === undefined) {\n        throw new Error(`inject() must be called from an injection context`);\n    }\n    else if (_currentInjector === null) {\n        return injectRootLimpMode(token, undefined, flags);\n    }\n    else {\n        return _currentInjector.get(token, flags & InjectFlags.Optional ? null : undefined, flags);\n    }\n}\n/**\n * @template T\n * @param {?} token\n * @param {?=} flags\n * @return {?}\n */\nfunction ɵɵinject(token, flags = InjectFlags.Default) {\n    return (_injectImplementation || injectInjectorOnly)(resolveForwardRef(token), flags);\n}\n/**\n * Throws an error indicating that a factory function could not be generated by the compiler for a\n * particular class.\n *\n * This instruction allows the actual error message to be optimized away when ngDevMode is turned\n * off, saving bytes of generated code while still providing a good experience in dev mode.\n *\n * The name of the class is not mentioned here, but will be in the generated factory function name\n * and thus in the stack trace.\n *\n * \\@codeGenApi\n * @param {?} index\n * @return {?}\n */\nfunction ɵɵinvalidFactoryDep(index) {\n    /** @type {?} */\n    const msg = ngDevMode ?\n        `This constructor is not compatible with Angular Dependency Injection because its dependency at index ${index} of the parameter list is invalid.\nThis can happen if the dependency type is a primitive like a string or if an ancestor of this class is missing an Angular decorator.\n\nPlease check that 1) the type for the parameter at index ${index} is correct and 2) the correct Angular decorators are defined for this class and its ancestors.` :\n        'invalid';\n    throw new Error(msg);\n}\n/**\n * Injects a token from the currently active injector.\n *\n * Must be used in the context of a factory function such as one defined for an\n * `InjectionToken`. Throws an error if not called from such a context.\n *\n * Within such a factory function, using this function to request injection of a dependency\n * is faster and more type-safe than providing an additional array of dependencies\n * (as has been common with `useFactory` providers).\n *\n * \\@param token The injection token for the dependency to be injected.\n * \\@param flags Optional flags that control how injection is executed.\n * The flags correspond to injection strategies that can be specified with\n * parameter decorators `\\@Host`, `\\@Self`, `\\@SkipSef`, and `\\@Optional`.\n * \\@return True if injection is successful, null otherwise.\n *\n * \\@usageNotes\n *\n * ### Example\n *\n * {\\@example core/di/ts/injector_spec.ts region='ShakableInjectionToken'}\n *\n * \\@publicApi\n * @type {?}\n */\nconst inject = ɵɵinject;\n/**\n * Injects `root` tokens in limp mode.\n *\n * If no injector exists, we can still inject tree-shakable providers which have `providedIn` set to\n * `\"root\"`. This is known as the limp mode injection. In such case the value is stored in the\n * `InjectableDef`.\n * @template T\n * @param {?} token\n * @param {?} notFoundValue\n * @param {?} flags\n * @return {?}\n */\nfunction injectRootLimpMode(token, notFoundValue, flags) {\n    /** @type {?} */\n    const injectableDef = getInjectableDef(token);\n    if (injectableDef && injectableDef.providedIn == 'root') {\n        return injectableDef.value === undefined ? injectableDef.value = injectableDef.factory() :\n            injectableDef.value;\n    }\n    if (flags & InjectFlags.Optional)\n        return null;\n    if (notFoundValue !== undefined)\n        return notFoundValue;\n    throw new Error(`Injector: NOT_FOUND [${stringify(token)}]`);\n}\n/**\n * @param {?} types\n * @return {?}\n */\nfunction injectArgs(types) {\n    /** @type {?} */\n    const args = [];\n    for (let i = 0; i < types.length; i++) {\n        /** @type {?} */\n        const arg = resolveForwardRef(types[i]);\n        if (Array.isArray(arg)) {\n            if (arg.length === 0) {\n                throw new Error('Arguments array must have arguments.');\n            }\n            /** @type {?} */\n            let type = undefined;\n            /** @type {?} */\n            let flags = InjectFlags.Default;\n            for (let j = 0; j < arg.length; j++) {\n                /** @type {?} */\n                const meta = arg[j];\n                if (meta instanceof Optional || meta.ngMetadataName === 'Optional' || meta === Optional) {\n                    flags |= InjectFlags.Optional;\n                }\n                else if (meta instanceof SkipSelf || meta.ngMetadataName === 'SkipSelf' || meta === SkipSelf) {\n                    flags |= InjectFlags.SkipSelf;\n                }\n                else if (meta instanceof Self || meta.ngMetadataName === 'Self' || meta === Self) {\n                    flags |= InjectFlags.Self;\n                }\n                else if (meta instanceof Inject || meta === Inject) {\n                    type = meta.token;\n                }\n                else {\n                    type = meta;\n                }\n            }\n            args.push(ɵɵinject((/** @type {?} */ (type)), flags));\n        }\n        else {\n            args.push(ɵɵinject(arg));\n        }\n    }\n    return args;\n}\nclass NullInjector {\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @return {?}\n     */\n    get(token, notFoundValue = THROW_IF_NOT_FOUND) {\n        if (notFoundValue === THROW_IF_NOT_FOUND) {\n            // Intentionally left behind: With dev tools open the debugger will stop here. There is no\n            // reason why correctly written application should cause this exception.\n            // TODO(misko): uncomment the next line once `ngDevMode` works with closure.\n            // if (ngDevMode) debugger;\n            /** @type {?} */\n            const error = new Error(`NullInjectorError: No provider for ${stringify(token)}!`);\n            error.name = 'NullInjectorError';\n            throw error;\n        }\n        return notFoundValue;\n    }\n}\n/**\n * @param {?} e\n * @param {?} token\n * @param {?} injectorErrorName\n * @param {?} source\n * @return {?}\n */\nfunction catchInjectorError(e, token, injectorErrorName, source) {\n    /** @type {?} */\n    const tokenPath = e[NG_TEMP_TOKEN_PATH];\n    if (token[SOURCE]) {\n        tokenPath.unshift(token[SOURCE]);\n    }\n    e.message = formatError('\\n' + e.message, tokenPath, injectorErrorName, source);\n    e[NG_TOKEN_PATH] = tokenPath;\n    e[NG_TEMP_TOKEN_PATH] = null;\n    throw e;\n}\n/**\n * @param {?} text\n * @param {?} obj\n * @param {?} injectorErrorName\n * @param {?=} source\n * @return {?}\n */\nfunction formatError(text, obj, injectorErrorName, source = null) {\n    text = text && text.charAt(0) === '\\n' && text.charAt(1) == NO_NEW_LINE ? text.substr(2) : text;\n    /** @type {?} */\n    let context = stringify(obj);\n    if (Array.isArray(obj)) {\n        context = obj.map(stringify).join(' -> ');\n    }\n    else if (typeof obj === 'object') {\n        /** @type {?} */\n        let parts = (/** @type {?} */ ([]));\n        for (let key in obj) {\n            if (obj.hasOwnProperty(key)) {\n                /** @type {?} */\n                let value = obj[key];\n                parts.push(key + ':' + (typeof value === 'string' ? JSON.stringify(value) : stringify(value)));\n            }\n        }\n        context = `{${parts.join(', ')}}`;\n    }\n    return `${injectorErrorName}${source ? '(' + source + ')' : ''}[${context}]: ${text.replace(NEW_LINE, '\\n  ')}`;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/jit/environment.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A mapping of the \\@angular/core API surface used in generated expressions to the actual symbols.\n *\n * This should be kept up to date with the public exports of \\@angular/core.\n * @type {?}\n */\nconst angularCoreDiEnv = {\n    'ɵɵdefineInjectable': ɵɵdefineInjectable,\n    'ɵɵdefineInjector': ɵɵdefineInjector,\n    'ɵɵinject': ɵɵinject,\n    'ɵɵgetFactoryOf': getFactoryOf,\n    'ɵɵinvalidFactoryDep': ɵɵinvalidFactoryDep,\n};\n/**\n * @template T\n * @param {?} type\n * @return {?}\n */\nfunction getFactoryOf(type) {\n    /** @type {?} */\n    const typeAny = (/** @type {?} */ (type));\n    if (isForwardRef(type)) {\n        return (/** @type {?} */ (((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const factory = getFactoryOf(resolveForwardRef(typeAny));\n            return factory ? factory() : null;\n        }))));\n    }\n    /** @type {?} */\n    const def = getInjectableDef(typeAny) || getInjectorDef(typeAny);\n    if (!def || def.factory === undefined) {\n        return null;\n    }\n    return def.factory;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/ng_module_factory.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Represents an instance of an NgModule created via a {\\@link NgModuleFactory}.\n *\n * `NgModuleRef` provides access to the NgModule Instance as well other objects related to this\n * NgModule Instance.\n *\n * \\@publicApi\n * @abstract\n * @template T\n */\nclass NgModuleRef {\n}\nif (false) {\n    /**\n     * The injector that contains all of the providers of the NgModule.\n     * @abstract\n     * @return {?}\n     */\n    NgModuleRef.prototype.injector = function () { };\n    /**\n     * The ComponentFactoryResolver to get hold of the ComponentFactories\n     * declared in the `entryComponents` property of the module.\n     * @abstract\n     * @return {?}\n     */\n    NgModuleRef.prototype.componentFactoryResolver = function () { };\n    /**\n     * The NgModule instance.\n     * @abstract\n     * @return {?}\n     */\n    NgModuleRef.prototype.instance = function () { };\n    /**\n     * Destroys the module instance and all of the data structures associated with it.\n     * @abstract\n     * @return {?}\n     */\n    NgModuleRef.prototype.destroy = function () { };\n    /**\n     * Allows to register a callback that will be called when the module is destroyed.\n     * @abstract\n     * @param {?} callback\n     * @return {?}\n     */\n    NgModuleRef.prototype.onDestroy = function (callback) { };\n}\n/**\n * @record\n * @template T\n */\nfunction InternalNgModuleRef() { }\nif (false) {\n    /** @type {?} */\n    InternalNgModuleRef.prototype._bootstrapComponents;\n}\n/**\n * \\@publicApi\n * @abstract\n * @template T\n */\nclass NgModuleFactory {\n}\nif (false) {\n    /**\n     * @abstract\n     * @return {?}\n     */\n    NgModuleFactory.prototype.moduleType = function () { };\n    /**\n     * @abstract\n     * @param {?} parentInjector\n     * @return {?}\n     */\n    NgModuleFactory.prototype.create = function (parentInjector) { };\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction assertNumber(actual, msg) {\n    if (!(typeof actual === 'number')) {\n        throwError(msg, typeof actual, 'number', '===');\n    }\n}\nfunction assertNumberInRange(actual, minInclusive, maxInclusive) {\n    assertNumber(actual, 'Expected a number');\n    assertLessThanOrEqual(actual, maxInclusive, 'Expected number to be less than or equal to');\n    assertGreaterThanOrEqual(actual, minInclusive, 'Expected number to be greater than or equal to');\n}\nfunction assertString(actual, msg) {\n    if (!(typeof actual === 'string')) {\n        throwError(msg, actual === null ? 'null' : typeof actual, 'string', '===');\n    }\n}\nfunction assertEqual(actual, expected, msg) {\n    if (!(actual == expected)) {\n        throwError(msg, actual, expected, '==');\n    }\n}\nfunction assertNotEqual(actual, expected, msg) {\n    if (!(actual != expected)) {\n        throwError(msg, actual, expected, '!=');\n    }\n}\nfunction assertSame(actual, expected, msg) {\n    if (!(actual === expected)) {\n        throwError(msg, actual, expected, '===');\n    }\n}\nfunction assertNotSame(actual, expected, msg) {\n    if (!(actual !== expected)) {\n        throwError(msg, actual, expected, '!==');\n    }\n}\nfunction assertLessThan(actual, expected, msg) {\n    if (!(actual < expected)) {\n        throwError(msg, actual, expected, '<');\n    }\n}\nfunction assertLessThanOrEqual(actual, expected, msg) {\n    if (!(actual <= expected)) {\n        throwError(msg, actual, expected, '<=');\n    }\n}\nfunction assertGreaterThan(actual, expected, msg) {\n    if (!(actual > expected)) {\n        throwError(msg, actual, expected, '>');\n    }\n}\nfunction assertGreaterThanOrEqual(actual, expected, msg) {\n    if (!(actual >= expected)) {\n        throwError(msg, actual, expected, '>=');\n    }\n}\nfunction assertNotDefined(actual, msg) {\n    if (actual != null) {\n        throwError(msg, actual, null, '==');\n    }\n}\nfunction assertDefined(actual, msg) {\n    if (actual == null) {\n        throwError(msg, actual, null, '!=');\n    }\n}\nfunction throwError(msg, actual, expected, comparison) {\n    throw new Error(`ASSERTION ERROR: ${msg}` +\n        (comparison == null ? '' : ` [Expected=> ${expected} ${comparison} ${actual} <=Actual]`));\n}\nfunction assertDomNode(node) {\n    // If we're in a worker, `Node` will not be defined.\n    assertEqual((typeof Node !== 'undefined' && node instanceof Node) ||\n        (typeof node === 'object' && node != null &&\n            node.constructor.name === 'WebWorkerRenderNode'), true, `The provided value must be an instance of a DOM Node but got ${stringify(node)}`);\n}\nfunction assertDataInRange(arr, index) {\n    const maxLen = arr ? arr.length : 0;\n    assertLessThan(index, maxLen, `Index expected to be less than ${maxLen} but got ${index}`);\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Equivalent to ES6 spread, add each item to an array.\n *\n * @param items The items to add\n * @param arr The array to which you want to add the items\n */\nfunction addAllToArray(items, arr) {\n    for (let i = 0; i < items.length; i++) {\n        arr.push(items[i]);\n    }\n}\n/**\n * Flattens an array.\n */\nfunction flatten(list, dst) {\n    if (dst === undefined)\n        dst = list;\n    for (let i = 0; i < list.length; i++) {\n        let item = list[i];\n        if (Array.isArray(item)) {\n            // we need to inline it.\n            if (dst === list) {\n                // Our assumption that the list was already flat was wrong and\n                // we need to clone flat since we need to write to it.\n                dst = list.slice(0, i);\n            }\n            flatten(item, dst);\n        }\n        else if (dst !== list) {\n            dst.push(item);\n        }\n    }\n    return dst;\n}\nfunction deepForEach(input, fn) {\n    input.forEach(value => Array.isArray(value) ? deepForEach(value, fn) : fn(value));\n}\nfunction addToArray(arr, index, value) {\n    // perf: array.push is faster than array.splice!\n    if (index >= arr.length) {\n        arr.push(value);\n    }\n    else {\n        arr.splice(index, 0, value);\n    }\n}\nfunction removeFromArray(arr, index) {\n    // perf: array.pop is faster than array.splice!\n    if (index >= arr.length - 1) {\n        return arr.pop();\n    }\n    else {\n        return arr.splice(index, 1)[0];\n    }\n}\nfunction newArray(size, value) {\n    const list = [];\n    for (let i = 0; i < size; i++) {\n        list.push(value);\n    }\n    return list;\n}\n/**\n * Remove item from array (Same as `Array.splice()` but faster.)\n *\n * `Array.splice()` is not as fast because it has to allocate an array for the elements which were\n * removed. This causes memory pressure and slows down code when most of the time we don't\n * care about the deleted items array.\n *\n * https://jsperf.com/fast-array-splice (About 20x faster)\n *\n * @param array Array to splice\n * @param index Index of element in array to remove.\n * @param count Number of items to remove.\n */\nfunction arraySplice(array, index, count) {\n    const length = array.length - count;\n    while (index < length) {\n        array[index] = array[index + count];\n        index++;\n    }\n    while (count--) {\n        array.pop(); // shrink the array\n    }\n}\n/**\n * Same as `Array.splice(index, 0, value)` but faster.\n *\n * `Array.splice()` is not fast because it has to allocate an array for the elements which were\n * removed. This causes memory pressure and slows down code when most of the time we don't\n * care about the deleted items array.\n *\n * @param array Array to splice.\n * @param index Index in array where the `value` should be added.\n * @param value Value to add to array.\n */\nfunction arrayInsert(array, index, value) {\n    ngDevMode && assertLessThanOrEqual(index, array.length, 'Can\\'t insert past array end.');\n    let end = array.length;\n    while (end > index) {\n        const previousEnd = end - 1;\n        array[end] = array[previousEnd];\n        end = previousEnd;\n    }\n    array[index] = value;\n}\n/**\n * Same as `Array.splice2(index, 0, value1, value2)` but faster.\n *\n * `Array.splice()` is not fast because it has to allocate an array for the elements which were\n * removed. This causes memory pressure and slows down code when most of the time we don't\n * care about the deleted items array.\n *\n * @param array Array to splice.\n * @param index Index in array where the `value` should be added.\n * @param value1 Value to add to array.\n * @param value2 Value to add to array.\n */\nfunction arrayInsert2(array, index, value1, value2) {\n    ngDevMode && assertLessThanOrEqual(index, array.length, 'Can\\'t insert past array end.');\n    let end = array.length;\n    if (end == index) {\n        // inserting at the end.\n        array.push(value1, value2);\n    }\n    else if (end === 1) {\n        // corner case when we have less items in array than we have items to insert.\n        array.push(value2, array[0]);\n        array[0] = value1;\n    }\n    else {\n        end--;\n        array.push(array[end - 1], array[end]);\n        while (end > index) {\n            const previousEnd = end - 2;\n            array[end] = array[previousEnd];\n            end--;\n        }\n        array[index] = value1;\n        array[index + 1] = value2;\n    }\n}\n/**\n * Insert a `value` into an `array` so that the array remains sorted.\n *\n * NOTE:\n * - Duplicates are not allowed, and are ignored.\n * - This uses binary search algorithm for fast inserts.\n *\n * @param array A sorted array to insert into.\n * @param value The value to insert.\n * @returns index of the inserted value.\n */\nfunction arrayInsertSorted(array, value) {\n    let index = arrayIndexOfSorted(array, value);\n    if (index < 0) {\n        // if we did not find it insert it.\n        index = ~index;\n        arrayInsert(array, index, value);\n    }\n    return index;\n}\n/**\n * Remove `value` from a sorted `array`.\n *\n * NOTE:\n * - This uses binary search algorithm for fast removals.\n *\n * @param array A sorted array to remove from.\n * @param value The value to remove.\n * @returns index of the removed value.\n *   - positive index if value found and removed.\n *   - negative index if value not found. (`~index` to get the value where it should have been\n *     inserted)\n */\nfunction arrayRemoveSorted(array, value) {\n    const index = arrayIndexOfSorted(array, value);\n    if (index >= 0) {\n        arraySplice(array, index, 1);\n    }\n    return index;\n}\n/**\n * Get an index of an `value` in a sorted `array`.\n *\n * NOTE:\n * - This uses binary search algorithm for fast removals.\n *\n * @param array A sorted array to binary search.\n * @param value The value to look for.\n * @returns index of the value.\n *   - positive index if value found.\n *   - negative index if value not found. (`~index` to get the value where it should have been\n *     located)\n */\nfunction arrayIndexOfSorted(array, value) {\n    return _arrayIndexOfSorted(array, value, 0);\n}\n/**\n * Set a `value` for a `key`.\n *\n * @param keyValueArray to modify.\n * @param key The key to locate or create.\n * @param value The value to set for a `key`.\n * @returns index (always even) of where the value vas set.\n */\nfunction keyValueArraySet(keyValueArray, key, value) {\n    let index = keyValueArrayIndexOf(keyValueArray, key);\n    if (index >= 0) {\n        // if we found it set it.\n        keyValueArray[index | 1] = value;\n    }\n    else {\n        index = ~index;\n        arrayInsert2(keyValueArray, index, key, value);\n    }\n    return index;\n}\n/**\n * Retrieve a `value` for a `key` (on `undefined` if not found.)\n *\n * @param keyValueArray to search.\n * @param key The key to locate.\n * @return The `value` stored at the `key` location or `undefined if not found.\n */\nfunction keyValueArrayGet(keyValueArray, key) {\n    const index = keyValueArrayIndexOf(keyValueArray, key);\n    if (index >= 0) {\n        // if we found it retrieve it.\n        return keyValueArray[index | 1];\n    }\n    return undefined;\n}\n/**\n * Retrieve a `key` index value in the array or `-1` if not found.\n *\n * @param keyValueArray to search.\n * @param key The key to locate.\n * @returns index of where the key is (or should have been.)\n *   - positive (even) index if key found.\n *   - negative index if key not found. (`~index` (even) to get the index where it should have\n *     been inserted.)\n */\nfunction keyValueArrayIndexOf(keyValueArray, key) {\n    return _arrayIndexOfSorted(keyValueArray, key, 1);\n}\n/**\n * Delete a `key` (and `value`) from the `KeyValueArray`.\n *\n * @param keyValueArray to modify.\n * @param key The key to locate or delete (if exist).\n * @returns index of where the key was (or should have been.)\n *   - positive (even) index if key found and deleted.\n *   - negative index if key not found. (`~index` (even) to get the index where it should have\n *     been.)\n */\nfunction keyValueArrayDelete(keyValueArray, key) {\n    const index = keyValueArrayIndexOf(keyValueArray, key);\n    if (index >= 0) {\n        // if we found it remove it.\n        arraySplice(keyValueArray, index, 2);\n    }\n    return index;\n}\n/**\n * INTERNAL: Get an index of an `value` in a sorted `array` by grouping search by `shift`.\n *\n * NOTE:\n * - This uses binary search algorithm for fast removals.\n *\n * @param array A sorted array to binary search.\n * @param value The value to look for.\n * @param shift grouping shift.\n *   - `0` means look at every location\n *   - `1` means only look at every other (even) location (the odd locations are to be ignored as\n *         they are values.)\n * @returns index of the value.\n *   - positive index if value found.\n *   - negative index if value not found. (`~index` to get the value where it should have been\n * inserted)\n */\nfunction _arrayIndexOfSorted(array, value, shift) {\n    ngDevMode && assertEqual(Array.isArray(array), true, 'Expecting an array');\n    let start = 0;\n    let end = array.length >> shift;\n    while (end !== start) {\n        const middle = start + ((end - start) >> 1); // find the middle.\n        const current = array[middle << shift];\n        if (value === current) {\n            return (middle << shift);\n        }\n        else if (current > value) {\n            end = middle;\n        }\n        else {\n            start = middle + 1; // We already searched middle so make it non-inclusive by adding 1\n        }\n    }\n    return ~(end << shift);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/constants.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst ChangeDetectionStrategy = {\n    /**\n     * Use the `CheckOnce` strategy, meaning that automatic change detection is deactivated\n     * until reactivated by setting the strategy to `Default` (`CheckAlways`).\n     * Change detection can still be explicitly invoked.\n     * This strategy applies to all child directives and cannot be overridden.\n     */\n    OnPush: 0,\n    /**\n     * Use the default `CheckAlways` strategy, in which change detection is automatic until\n     * explicitly deactivated.\n     */\n    Default: 1,\n};\nChangeDetectionStrategy[ChangeDetectionStrategy.OnPush] = 'OnPush';\nChangeDetectionStrategy[ChangeDetectionStrategy.Default] = 'Default';\n/** @enum {number} */\nconst ChangeDetectorStatus = {\n    /**\n     * A state in which, after calling `detectChanges()`, the change detector\n     * state becomes `Checked`, and must be explicitly invoked or reactivated.\n     */\n    CheckOnce: 0,\n    /**\n     * A state in which change detection is skipped until the change detector mode\n     * becomes `CheckOnce`.\n     */\n    Checked: 1,\n    /**\n     * A state in which change detection continues automatically until explicitly\n     * deactivated.\n     */\n    CheckAlways: 2,\n    /**\n     * A state in which a change detector sub tree is not a part of the main tree and\n     * should be skipped.\n     */\n    Detached: 3,\n    /**\n     * Indicates that the change detector encountered an error checking a binding\n     * or calling a directive lifecycle method and is now in an inconsistent state. Change\n     * detectors in this state do not detect changes.\n     */\n    Errored: 4,\n    /**\n     * Indicates that the change detector has been destroyed.\n     */\n    Destroyed: 5,\n};\nChangeDetectorStatus[ChangeDetectorStatus.CheckOnce] = 'CheckOnce';\nChangeDetectorStatus[ChangeDetectorStatus.Checked] = 'Checked';\nChangeDetectorStatus[ChangeDetectorStatus.CheckAlways] = 'CheckAlways';\nChangeDetectorStatus[ChangeDetectorStatus.Detached] = 'Detached';\nChangeDetectorStatus[ChangeDetectorStatus.Errored] = 'Errored';\nChangeDetectorStatus[ChangeDetectorStatus.Destroyed] = 'Destroyed';\n/**\n * Reports whether a given strategy is currently the default for change detection.\n * @see `ChangeDetectorStatus` / `ChangeDetectorRef`\n * @param {?} changeDetectionStrategy The strategy to check.\n * @return {?} True if the given strategy is the current default, false otherwise.\n */\nfunction isDefaultChangeDetectionStrategy(changeDetectionStrategy) {\n    return changeDetectionStrategy == null ||\n        changeDetectionStrategy === ChangeDetectionStrategy.Default;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/metadata/view.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst ViewEncapsulation$1 = {\n    /**\n     * Emulate `Native` scoping of styles by adding an attribute containing surrogate id to the Host\n     * Element and pre-processing the style rules provided via {@link Component#styles styles} or\n     * {@link Component#styleUrls styleUrls}, and adding the new Host Element attribute to all\n     * selectors.\n     *\n     * This is the default option.\n     */\n    Emulated: 0,\n    /**\n     * @deprecated v6.1.0 - use {ViewEncapsulation.ShadowDom} instead.\n     * Use the native encapsulation mechanism of the renderer.\n     *\n     * For the DOM this means using the deprecated [Shadow DOM\n     * v0](https://w3c.github.io/webcomponents/spec/shadow/) and\n     * creating a ShadowRoot for Component's Host Element.\n     */\n    Native: 1,\n    /**\n     * Don't provide any template or style encapsulation.\n     */\n    None: 2,\n    /**\n     * Use Shadow DOM to encapsulate styles.\n     *\n     * For the DOM this means using modern [Shadow\n     * DOM](https://w3c.github.io/webcomponents/spec/shadow/) and\n     * creating a ShadowRoot for Component's Host Element.\n     */\n    ShadowDom: 3,\n};\nViewEncapsulation$1[ViewEncapsulation$1.Emulated] = 'Emulated';\nViewEncapsulation$1[ViewEncapsulation$1.Native] = 'Native';\nViewEncapsulation$1[ViewEncapsulation$1.None] = 'None';\nViewEncapsulation$1[ViewEncapsulation$1.ShadowDom] = 'ShadowDom';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/empty.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This file contains reuseable \"empty\" symbols that can be used as default return values\n * in different parts of the rendering code. Because the same symbols are returned, this\n * allows for identity checks against these values to be consistently used by the framework\n * code.\n * @type {?}\n */\nconst EMPTY_OBJ = {};\n/** @type {?} */\nconst EMPTY_ARRAY = [];\n// freezing the values prevents any code from accidentally inserting new values in\nif ((typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode()) {\n    // These property accesses can be ignored because ngDevMode will be set to false\n    // when optimizing code and the whole if statement will be dropped.\n    // tslint:disable-next-line:no-toplevel-property-access\n    Object.freeze(EMPTY_OBJ);\n    // tslint:disable-next-line:no-toplevel-property-access\n    Object.freeze(EMPTY_ARRAY);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/definition.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nlet _renderCompCount = 0;\n/**\n * Create a component definition object.\n *\n *\n * # Example\n * ```\n * class MyDirective {\n *   // Generated by Angular Template Compiler\n *   // [Symbol] syntax will not be supported by TypeScript until v2.7\n *   static ɵcmp = defineComponent({\n *     ...\n *   });\n * }\n * ```\n * \\@codeGenApi\n * @template T\n * @param {?} componentDefinition\n * @return {?}\n */\nfunction ɵɵdefineComponent(componentDefinition) {\n    return noSideEffects((/**\n     * @return {?}\n     */\n    () => {\n        // Initialize ngDevMode. This must be the first statement in ɵɵdefineComponent.\n        // See the `initNgDevMode` docstring for more information.\n        (typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode();\n        /** @type {?} */\n        const type = componentDefinition.type;\n        /** @type {?} */\n        const typePrototype = type.prototype;\n        /** @type {?} */\n        const declaredInputs = (/** @type {?} */ ({}));\n        /** @type {?} */\n        const def = {\n            type: type,\n            providersResolver: null,\n            decls: componentDefinition.decls,\n            vars: componentDefinition.vars,\n            factory: null,\n            template: componentDefinition.template || (/** @type {?} */ (null)),\n            consts: componentDefinition.consts || null,\n            ngContentSelectors: componentDefinition.ngContentSelectors,\n            hostBindings: componentDefinition.hostBindings || null,\n            hostVars: componentDefinition.hostVars || 0,\n            hostAttrs: componentDefinition.hostAttrs || null,\n            contentQueries: componentDefinition.contentQueries || null,\n            declaredInputs: declaredInputs,\n            inputs: (/** @type {?} */ (null)),\n            // assigned in noSideEffects\n            outputs: (/** @type {?} */ (null)),\n            // assigned in noSideEffects\n            exportAs: componentDefinition.exportAs || null,\n            onChanges: null,\n            onInit: typePrototype.ngOnInit || null,\n            doCheck: typePrototype.ngDoCheck || null,\n            afterContentInit: typePrototype.ngAfterContentInit || null,\n            afterContentChecked: typePrototype.ngAfterContentChecked || null,\n            afterViewInit: typePrototype.ngAfterViewInit || null,\n            afterViewChecked: typePrototype.ngAfterViewChecked || null,\n            onDestroy: typePrototype.ngOnDestroy || null,\n            onPush: componentDefinition.changeDetection === ChangeDetectionStrategy.OnPush,\n            directiveDefs: (/** @type {?} */ (null)),\n            // assigned in noSideEffects\n            pipeDefs: (/** @type {?} */ (null)),\n            // assigned in noSideEffects\n            selectors: componentDefinition.selectors || EMPTY_ARRAY,\n            viewQuery: componentDefinition.viewQuery || null,\n            features: (/** @type {?} */ (componentDefinition.features)) || null,\n            data: componentDefinition.data || {},\n            // TODO(misko): convert ViewEncapsulation into const enum so that it can be used directly in\n            // the next line. Also `None` should be 0 not 2.\n            encapsulation: componentDefinition.encapsulation || ViewEncapsulation$1.Emulated,\n            id: 'c',\n            styles: componentDefinition.styles || EMPTY_ARRAY,\n            _: (/** @type {?} */ (null)),\n            setInput: null,\n            schemas: componentDefinition.schemas || null,\n            tView: null,\n        };\n        /** @type {?} */\n        const directiveTypes = (/** @type {?} */ (componentDefinition.directives));\n        /** @type {?} */\n        const feature = componentDefinition.features;\n        /** @type {?} */\n        const pipeTypes = (/** @type {?} */ (componentDefinition.pipes));\n        def.id += _renderCompCount++;\n        def.inputs = invertObject(componentDefinition.inputs, declaredInputs),\n            def.outputs = invertObject(componentDefinition.outputs),\n            feature && feature.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            (fn) => fn(def)));\n        def.directiveDefs = directiveTypes ?\n            (/**\n             * @return {?}\n             */\n            () => (typeof directiveTypes === 'function' ? directiveTypes() : directiveTypes)\n                .map(extractDirectiveDef)) :\n            null;\n        def.pipeDefs = pipeTypes ?\n            (/**\n             * @return {?}\n             */\n            () => (typeof pipeTypes === 'function' ? pipeTypes() : pipeTypes).map(extractPipeDef)) :\n            null;\n        return (/** @type {?} */ (def));\n    }));\n}\n/**\n * \\@codeGenApi\n * @param {?} type\n * @param {?} directives\n * @param {?} pipes\n * @return {?}\n */\nfunction ɵɵsetComponentScope(type, directives, pipes) {\n    /** @type {?} */\n    const def = ((/** @type {?} */ (type.ɵcmp)));\n    def.directiveDefs = (/**\n     * @return {?}\n     */\n    () => directives.map(extractDirectiveDef));\n    def.pipeDefs = (/**\n     * @return {?}\n     */\n    () => pipes.map(extractPipeDef));\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction extractDirectiveDef(type) {\n    /** @type {?} */\n    const def = getComponentDef(type) || getDirectiveDef(type);\n    if (ngDevMode && !def) {\n        throw new Error(`'${type.name}' is neither 'ComponentType' or 'DirectiveType'.`);\n    }\n    return (/** @type {?} */ (def));\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction extractPipeDef(type) {\n    /** @type {?} */\n    const def = getPipeDef(type);\n    if (ngDevMode && !def) {\n        throw new Error(`'${type.name}' is not a 'PipeType'.`);\n    }\n    return (/** @type {?} */ (def));\n}\n/** @type {?} */\nconst autoRegisterModuleById = {};\n/**\n * \\@codeGenApi\n * @template T\n * @param {?} def\n * @return {?}\n */\nfunction ɵɵdefineNgModule(def) {\n    /** @type {?} */\n    const res = {\n        type: def.type,\n        bootstrap: def.bootstrap || EMPTY_ARRAY,\n        declarations: def.declarations || EMPTY_ARRAY,\n        imports: def.imports || EMPTY_ARRAY,\n        exports: def.exports || EMPTY_ARRAY,\n        transitiveCompileScopes: null,\n        schemas: def.schemas || null,\n        id: def.id || null,\n    };\n    if (def.id != null) {\n        noSideEffects((/**\n         * @return {?}\n         */\n        () => {\n            autoRegisterModuleById[(/** @type {?} */ (def.id))] = (/** @type {?} */ ((/** @type {?} */ (def.type))));\n        }));\n    }\n    return (/** @type {?} */ (res));\n}\n/**\n * Adds the module metadata that is necessary to compute the module's transitive scope to an\n * existing module definition.\n *\n * Scope metadata of modules is not used in production builds, so calls to this function can be\n * marked pure to tree-shake it from the bundle, allowing for all referenced declarations\n * to become eligible for tree-shaking as well.\n *\n * \\@codeGenApi\n * @param {?} type\n * @param {?} scope\n * @return {?}\n */\nfunction ɵɵsetNgModuleScope(type, scope) {\n    return (/** @type {?} */ (noSideEffects((/**\n     * @return {?}\n     */\n    () => {\n        /** @type {?} */\n        const ngModuleDef = getNgModuleDef(type, true);\n        ngModuleDef.declarations = scope.declarations || EMPTY_ARRAY;\n        ngModuleDef.imports = scope.imports || EMPTY_ARRAY;\n        ngModuleDef.exports = scope.exports || EMPTY_ARRAY;\n    }))));\n}\n/**\n * Inverts an inputs or outputs lookup such that the keys, which were the\n * minified keys, are part of the values, and the values are parsed so that\n * the publicName of the property is the new key\n *\n * e.g. for\n *\n * ```\n * class Comp {\n * \\@Input()\n *   propName1: string;\n *\n * \\@Input('publicName2')\n *   declaredPropName2: number;\n * }\n * ```\n *\n * will be serialized as\n *\n * ```\n * {\n *   propName1: 'propName1',\n *   declaredPropName2: ['publicName2', 'declaredPropName2'],\n * }\n * ```\n *\n * which is than translated by the minifier as:\n *\n * ```\n * {\n *   minifiedPropName1: 'propName1',\n *   minifiedPropName2: ['publicName2', 'declaredPropName2'],\n * }\n * ```\n *\n * becomes: (public name => minifiedName)\n *\n * ```\n * {\n *  'propName1': 'minifiedPropName1',\n *  'publicName2': 'minifiedPropName2',\n * }\n * ```\n *\n * Optionally the function can take `secondary` which will result in: (public name => declared name)\n *\n * ```\n * {\n *  'propName1': 'propName1',\n *  'publicName2': 'declaredPropName2',\n * }\n * ```\n *\n * @template T\n * @param {?=} obj\n * @param {?=} secondary\n * @return {?}\n */\nfunction invertObject(obj, secondary) {\n    if (obj == null)\n        return (/** @type {?} */ (EMPTY_OBJ));\n    /** @type {?} */\n    const newLookup = {};\n    for (const minifiedKey in obj) {\n        if (obj.hasOwnProperty(minifiedKey)) {\n            /** @type {?} */\n            let publicName = (/** @type {?} */ (obj[minifiedKey]));\n            /** @type {?} */\n            let declaredName = publicName;\n            if (Array.isArray(publicName)) {\n                declaredName = publicName[1];\n                publicName = publicName[0];\n            }\n            newLookup[publicName] = minifiedKey;\n            if (secondary) {\n                (secondary[publicName] = (/** @type {?} */ (declaredName)));\n            }\n        }\n    }\n    return newLookup;\n}\n/**\n * Create a directive definition object.\n *\n * # Example\n * ```ts\n * class MyDirective {\n *   // Generated by Angular Template Compiler\n *   // [Symbol] syntax will not be supported by TypeScript until v2.7\n *   static ɵdir = ɵɵdefineDirective({\n *     ...\n *   });\n * }\n * ```\n *\n * \\@codeGenApi\n * @type {?}\n */\nconst ɵɵdefineDirective = (/** @type {?} */ ((/** @type {?} */ (ɵɵdefineComponent))));\n/**\n * Create a pipe definition object.\n *\n * # Example\n * ```\n * class MyPipe implements PipeTransform {\n *   // Generated by Angular Template Compiler\n *   static ɵpipe = definePipe({\n *     ...\n *   });\n * }\n * ```\n * \\@codeGenApi\n * @template T\n * @param {?} pipeDef Pipe definition generated by the compiler\n *\n * @return {?}\n */\nfunction ɵɵdefinePipe(pipeDef) {\n    return (/** @type {?} */ (((/** @type {?} */ ({\n        type: pipeDef.type,\n        name: pipeDef.name,\n        factory: null,\n        pure: pipeDef.pure !== false,\n        onDestroy: pipeDef.type.prototype.ngOnDestroy || null\n    })))));\n}\n/**\n * The following getter methods retrieve the definition form the type. Currently the retrieval\n * honors inheritance, but in the future we may change the rule to require that definitions are\n * explicit. This would require some sort of migration strategy.\n * @template T\n * @param {?} type\n * @return {?}\n */\nfunction getComponentDef(type) {\n    return type[NG_COMP_DEF] || null;\n}\n/**\n * @template T\n * @param {?} type\n * @return {?}\n */\nfunction getDirectiveDef(type) {\n    return type[NG_DIR_DEF] || null;\n}\n/**\n * @template T\n * @param {?} type\n * @return {?}\n */\nfunction getPipeDef(type) {\n    return type[NG_PIPE_DEF] || null;\n}\n/**\n * @template T\n * @param {?} type\n * @param {?=} throwNotFound\n * @return {?}\n */\nfunction getFactoryDef(type, throwNotFound) {\n    /** @type {?} */\n    const hasFactoryDef = type.hasOwnProperty(NG_FACTORY_DEF);\n    if (!hasFactoryDef && throwNotFound === true && ngDevMode) {\n        throw new Error(`Type ${stringify(type)} does not have 'ɵfac' property.`);\n    }\n    return hasFactoryDef ? type[NG_FACTORY_DEF] : null;\n}\n/**\n * @template T\n * @param {?} type\n * @param {?=} throwNotFound\n * @return {?}\n */\nfunction getNgModuleDef(type, throwNotFound) {\n    /** @type {?} */\n    const ngModuleDef = type[NG_MOD_DEF] || null;\n    if (!ngModuleDef && throwNotFound === true) {\n        throw new Error(`Type ${stringify(type)} does not have 'ɵmod' property.`);\n    }\n    return ngModuleDef;\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction getNgLocaleIdDef(type) {\n    return ((/** @type {?} */ (type)))[NG_LOC_ID_DEF] || null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/view.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// Below are constants for LView indices to help us look up LView members\n// without having to remember the specific indices.\n// Uglify will inline these when minifying so there shouldn't be a cost.\n/** @type {?} */\nconst HOST = 0;\n/** @type {?} */\nconst TVIEW = 1;\n/** @type {?} */\nconst FLAGS = 2;\n/** @type {?} */\nconst PARENT = 3;\n/** @type {?} */\nconst NEXT = 4;\n/** @type {?} */\nconst TRANSPLANTED_VIEWS_TO_REFRESH = 5;\n/** @type {?} */\nconst T_HOST = 6;\n/** @type {?} */\nconst CLEANUP = 7;\n/** @type {?} */\nconst CONTEXT = 8;\n/** @type {?} */\nconst INJECTOR$1 = 9;\n/** @type {?} */\nconst RENDERER_FACTORY = 10;\n/** @type {?} */\nconst RENDERER = 11;\n/** @type {?} */\nconst SANITIZER = 12;\n/** @type {?} */\nconst CHILD_HEAD = 13;\n/** @type {?} */\nconst CHILD_TAIL = 14;\n/** @type {?} */\nconst DECLARATION_VIEW = 15;\n/** @type {?} */\nconst DECLARATION_COMPONENT_VIEW = 16;\n/** @type {?} */\nconst DECLARATION_LCONTAINER = 17;\n/** @type {?} */\nconst PREORDER_HOOK_FLAGS = 18;\n/** @type {?} */\nconst QUERIES = 19;\n/**\n * Size of LView's header. Necessary to adjust for it when setting slots.\n * @type {?}\n */\nconst HEADER_OFFSET = 20;\n/**\n * @record\n */\nfunction OpaqueViewState() { }\nif (false) {\n    /** @type {?} */\n    OpaqueViewState.prototype.__brand__;\n}\n/**\n * `LView` stores all of the information needed to process the instructions as\n * they are invoked from the template. Each embedded view and component view has its\n * own `LView`. When processing a particular view, we set the `viewData` to that\n * `LView`. When that view is done processing, the `viewData` is set back to\n * whatever the original `viewData` was before (the parent `LView`).\n *\n * Keeping separate state for each view facilities view insertion / deletion, so we\n * don't have to edit the data array based on which views are present.\n * @record\n */\nfunction LView() { }\nif (false) {\n    /* Skipping unnamed member:\n    [HOST]: RElement|null;*/\n    /* Skipping unnamed member:\n    readonly[TVIEW]: TView;*/\n    /* Skipping unnamed member:\n    [FLAGS]: LViewFlags;*/\n    /* Skipping unnamed member:\n    [PARENT]: LView|LContainer|null;*/\n    /* Skipping unnamed member:\n    [NEXT]: LView|LContainer|null;*/\n    /* Skipping unnamed member:\n    [QUERIES]: LQueries|null;*/\n    /* Skipping unnamed member:\n    [T_HOST]: TViewNode|TElementNode|null;*/\n    /* Skipping unnamed member:\n    [CLEANUP]: any[]|null;*/\n    /* Skipping unnamed member:\n    [CONTEXT]: {}|RootContext|null;*/\n    /* Skipping unnamed member:\n    readonly[INJECTOR]: Injector|null;*/\n    /* Skipping unnamed member:\n    [RENDERER_FACTORY]: RendererFactory3;*/\n    /* Skipping unnamed member:\n    [RENDERER]: Renderer3;*/\n    /* Skipping unnamed member:\n    [SANITIZER]: Sanitizer|null;*/\n    /* Skipping unnamed member:\n    [CHILD_HEAD]: LView|LContainer|null;*/\n    /* Skipping unnamed member:\n    [CHILD_TAIL]: LView|LContainer|null;*/\n    /* Skipping unnamed member:\n    [DECLARATION_VIEW]: LView|null;*/\n    /* Skipping unnamed member:\n    [DECLARATION_COMPONENT_VIEW]: LView;*/\n    /* Skipping unnamed member:\n    [DECLARATION_LCONTAINER]: LContainer|null;*/\n    /* Skipping unnamed member:\n    [PREORDER_HOOK_FLAGS]: PreOrderHookFlags;*/\n    /* Skipping unnamed member:\n    [TRANSPLANTED_VIEWS_TO_REFRESH]: number;*/\n}\n/** @enum {number} */\nconst LViewFlags = {\n    /** The state of the init phase on the first 2 bits */\n    InitPhaseStateIncrementer: 1,\n    InitPhaseStateMask: 3,\n    /**\n     * Whether or not the view is in creationMode.\n     *\n     * This must be stored in the view rather than using `data` as a marker so that\n     * we can properly support embedded views. Otherwise, when exiting a child view\n     * back into the parent view, `data` will be defined and `creationMode` will be\n     * improperly reported as false.\n     */\n    CreationMode: 4,\n    /**\n     * Whether or not this LView instance is on its first processing pass.\n     *\n     * An LView instance is considered to be on its \"first pass\" until it\n     * has completed one creation mode run and one update mode run. At this\n     * time, the flag is turned off.\n     */\n    FirstLViewPass: 8,\n    /** Whether this view has default change detection strategy (checks always) or onPush */\n    CheckAlways: 16,\n    /**\n     * Whether or not manual change detection is turned on for onPush components.\n     *\n     * This is a special mode that only marks components dirty in two cases:\n     * 1) There has been a change to an @Input property\n     * 2) `markDirty()` has been called manually by the user\n     *\n     * Note that in this mode, the firing of events does NOT mark components\n     * dirty automatically.\n     *\n     * Manual mode is turned off by default for backwards compatibility, as events\n     * automatically mark OnPush components dirty in View Engine.\n     *\n     * TODO: Add a public API to ChangeDetectionStrategy to turn this mode on\n     */\n    ManualOnPush: 32,\n    /** Whether or not this view is currently dirty (needing check) */\n    Dirty: 64,\n    /** Whether or not this view is currently attached to change detection tree. */\n    Attached: 128,\n    /** Whether or not this view is destroyed. */\n    Destroyed: 256,\n    /** Whether or not this view is the root view */\n    IsRoot: 512,\n    /**\n     * Whether this moved LView was needs to be refreshed at the insertion location because the\n     * declaration was dirty.\n     */\n    RefreshTransplantedView: 1024,\n    /**\n     * Index of the current init phase on last 21 bits\n     */\n    IndexWithinInitPhaseIncrementer: 2048,\n    IndexWithinInitPhaseShift: 11,\n    IndexWithinInitPhaseReset: 2047,\n};\n/** @enum {number} */\nconst InitPhaseState = {\n    OnInitHooksToBeRun: 0,\n    AfterContentInitHooksToBeRun: 1,\n    AfterViewInitHooksToBeRun: 2,\n    InitPhaseCompleted: 3,\n};\n/** @enum {number} */\nconst PreOrderHookFlags = {\n    /**\n       The index of the next pre-order hook to be called in the hooks array, on the first 16\n       bits\n     */\n    IndexOfTheNextPreOrderHookMaskMask: 65535,\n    /**\n     * The number of init hooks that have already been called, on the last 16 bits\n     */\n    NumberOfInitHooksCalledIncrementer: 65536,\n    NumberOfInitHooksCalledShift: 16,\n    NumberOfInitHooksCalledMask: 4294901760,\n};\n/**\n * Set of instructions used to process host bindings efficiently.\n *\n * See VIEW_DATA.md for more information.\n * @record\n */\nfunction ExpandoInstructions() { }\n/** @enum {number} */\nconst TViewType = {\n    /**\n     * Root `TView` is the used to bootstrap components into. It is used in conjunction with\n     * `LView` which takes an existing DOM node not owned by Angular and wraps it in `TView`/`LView`\n     * so that other components can be loaded into it.\n     */\n    Root: 0,\n    /**\n     * `TView` associated with a Component. This would be the `TView` directly associated with the\n     * component view (as opposed an `Embedded` `TView` which would be a child of `Component` `TView`)\n     */\n    Component: 1,\n    /**\n     * `TView` associated with a template. Such as `*ngIf`, `<ng-template>` etc... A `Component`\n     * can have zero or more `Embedede` `TView`s.\n     */\n    Embedded: 2,\n};\n/**\n * The static data for an LView (shared between all templates of a\n * given type).\n *\n * Stored on the `ComponentDef.tView`.\n * @record\n */\nfunction TView() { }\nif (false) {\n    /**\n     * Type of `TView` (`Root`|`Component`|`Embedded`).\n     * @type {?}\n     */\n    TView.prototype.type;\n    /**\n     * ID for inline views to determine whether a view is the same as the previous view\n     * in a certain position. If it's not, we know the new view needs to be inserted\n     * and the one that exists needs to be removed (e.g. if/else statements)\n     *\n     * If this is -1, then this is a component view or a dynamically created view.\n     * @type {?}\n     */\n    TView.prototype.id;\n    /**\n     * This is a blueprint used to generate LView instances for this TView. Copying this\n     * blueprint is faster than creating a new LView from scratch.\n     * @type {?}\n     */\n    TView.prototype.blueprint;\n    /**\n     * The template function used to refresh the view of dynamically created views\n     * and components. Will be null for inline views.\n     * @type {?}\n     */\n    TView.prototype.template;\n    /**\n     * A function containing query-related instructions.\n     * @type {?}\n     */\n    TView.prototype.viewQuery;\n    /**\n     * Pointer to the host `TNode` (not part of this TView).\n     *\n     * If this is a `TViewNode` for an `LViewNode`, this is an embedded view of a container.\n     * We need this pointer to be able to efficiently find this node when inserting the view\n     * into an anchor.\n     *\n     * If this is a `TElementNode`, this is the view of a root component. It has exactly one\n     * root TNode.\n     *\n     * If this is null, this is the view of a component that is not at root. We do not store\n     * the host TNodes for child component views because they can potentially have several\n     * different host TNodes, depending on where the component is being used. These host\n     * TNodes cannot be shared (due to different indices, etc).\n     * @type {?}\n     */\n    TView.prototype.node;\n    /**\n     * Whether or not this template has been processed in creation mode.\n     * @type {?}\n     */\n    TView.prototype.firstCreatePass;\n    /**\n     *  Whether or not this template has been processed in update mode (e.g. change detected)\n     *\n     * `firstUpdatePass` is used by styling to set up `TData` to contain metadata about the styling\n     * instructions. (Mainly to build up a linked list of styling priority order.)\n     *\n     * Typically this function gets cleared after first execution. If exception is thrown then this\n     * flag can remain turned un until there is first successful (no exception) pass. This means that\n     * individual styling instructions keep track of if they have already been added to the linked\n     * list to prevent double adding.\n     * @type {?}\n     */\n    TView.prototype.firstUpdatePass;\n    /**\n     * Static data equivalent of LView.data[]. Contains TNodes, PipeDefInternal or TI18n.\n     * @type {?}\n     */\n    TView.prototype.data;\n    /**\n     * The binding start index is the index at which the data array\n     * starts to store bindings only. Saving this value ensures that we\n     * will begin reading bindings at the correct point in the array when\n     * we are in update mode.\n     *\n     * -1 means that it has not been initialized.\n     * @type {?}\n     */\n    TView.prototype.bindingStartIndex;\n    /**\n     * The index where the \"expando\" section of `LView` begins. The expando\n     * section contains injectors, directive instances, and host binding values.\n     * Unlike the \"decls\" and \"vars\" sections of `LView`, the length of this\n     * section cannot be calculated at compile-time because directives are matched\n     * at runtime to preserve locality.\n     *\n     * We store this start index so we know where to start checking host bindings\n     * in `setHostBindings`.\n     * @type {?}\n     */\n    TView.prototype.expandoStartIndex;\n    /**\n     * Whether or not there are any static view queries tracked on this view.\n     *\n     * We store this so we know whether or not we should do a view query\n     * refresh after creation mode to collect static query results.\n     * @type {?}\n     */\n    TView.prototype.staticViewQueries;\n    /**\n     * Whether or not there are any static content queries tracked on this view.\n     *\n     * We store this so we know whether or not we should do a content query\n     * refresh after creation mode to collect static query results.\n     * @type {?}\n     */\n    TView.prototype.staticContentQueries;\n    /**\n     * A reference to the first child node located in the view.\n     * @type {?}\n     */\n    TView.prototype.firstChild;\n    /**\n     * Set of instructions used to process host bindings efficiently.\n     *\n     * See VIEW_DATA.md for more information.\n     * @type {?}\n     */\n    TView.prototype.expandoInstructions;\n    /**\n     * Full registry of directives and components that may be found in this view.\n     *\n     * It's necessary to keep a copy of the full def list on the TView so it's possible\n     * to render template functions without a host component.\n     * @type {?}\n     */\n    TView.prototype.directiveRegistry;\n    /**\n     * Full registry of pipes that may be found in this view.\n     *\n     * The property is either an array of `PipeDefs`s or a function which returns the array of\n     * `PipeDefs`s. The function is necessary to be able to support forward declarations.\n     *\n     * It's necessary to keep a copy of the full def list on the TView so it's possible\n     * to render template functions without a host component.\n     * @type {?}\n     */\n    TView.prototype.pipeRegistry;\n    /**\n     * Array of ngOnInit, ngOnChanges and ngDoCheck hooks that should be executed for this view in\n     * creation mode.\n     *\n     * Even indices: Directive index\n     * Odd indices: Hook function\n     * @type {?}\n     */\n    TView.prototype.preOrderHooks;\n    /**\n     * Array of ngOnChanges and ngDoCheck hooks that should be executed for this view in update mode.\n     *\n     * Even indices: Directive index\n     * Odd indices: Hook function\n     * @type {?}\n     */\n    TView.prototype.preOrderCheckHooks;\n    /**\n     * Array of ngAfterContentInit and ngAfterContentChecked hooks that should be executed\n     * for this view in creation mode.\n     *\n     * Even indices: Directive index\n     * Odd indices: Hook function\n     * @type {?}\n     */\n    TView.prototype.contentHooks;\n    /**\n     * Array of ngAfterContentChecked hooks that should be executed for this view in update\n     * mode.\n     *\n     * Even indices: Directive index\n     * Odd indices: Hook function\n     * @type {?}\n     */\n    TView.prototype.contentCheckHooks;\n    /**\n     * Array of ngAfterViewInit and ngAfterViewChecked hooks that should be executed for\n     * this view in creation mode.\n     *\n     * Even indices: Directive index\n     * Odd indices: Hook function\n     * @type {?}\n     */\n    TView.prototype.viewHooks;\n    /**\n     * Array of ngAfterViewChecked hooks that should be executed for this view in\n     * update mode.\n     *\n     * Even indices: Directive index\n     * Odd indices: Hook function\n     * @type {?}\n     */\n    TView.prototype.viewCheckHooks;\n    /**\n     * Array of ngOnDestroy hooks that should be executed when this view is destroyed.\n     *\n     * Even indices: Directive index\n     * Odd indices: Hook function\n     * @type {?}\n     */\n    TView.prototype.destroyHooks;\n    /**\n     * When a view is destroyed, listeners need to be released and outputs need to be\n     * unsubscribed. This cleanup array stores both listener data (in chunks of 4)\n     * and output data (in chunks of 2) for a particular view. Combining the arrays\n     * saves on memory (70 bytes per array) and on a few bytes of code size (for two\n     * separate for loops).\n     *\n     * If it's a native DOM listener or output subscription being stored:\n     * 1st index is: event name  `name = tView.cleanup[i+0]`\n     * 2nd index is: index of native element or a function that retrieves global target (window,\n     *               document or body) reference based on the native element:\n     *    `typeof idxOrTargetGetter === 'function'`: global target getter function\n     *    `typeof idxOrTargetGetter === 'number'`: index of native element\n     *\n     * 3rd index is: index of listener function `listener = lView[CLEANUP][tView.cleanup[i+2]]`\n     * 4th index is: `useCaptureOrIndx = tView.cleanup[i+3]`\n     *    `typeof useCaptureOrIndx == 'boolean' : useCapture boolean\n     *    `typeof useCaptureOrIndx == 'number':\n     *         `useCaptureOrIndx >= 0` `removeListener = LView[CLEANUP][useCaptureOrIndx]`\n     *         `useCaptureOrIndx <  0` `subscription = LView[CLEANUP][-useCaptureOrIndx]`\n     *\n     * If it's an output subscription or query list destroy hook:\n     * 1st index is: output unsubscribe function / query list destroy function\n     * 2nd index is: index of function context in LView.cleanupInstances[]\n     *               `tView.cleanup[i+0].call(lView[CLEANUP][tView.cleanup[i+1]])`\n     * @type {?}\n     */\n    TView.prototype.cleanup;\n    /**\n     * A list of element indices for child components that will need to be\n     * refreshed when the current view has finished its check. These indices have\n     * already been adjusted for the HEADER_OFFSET.\n     *\n     * @type {?}\n     */\n    TView.prototype.components;\n    /**\n     * A collection of queries tracked in a given view.\n     * @type {?}\n     */\n    TView.prototype.queries;\n    /**\n     * An array of indices pointing to directives with content queries alongside with the\n     * corresponding\n     * query index. Each entry in this array is a tuple of:\n     * - index of the first content query index declared by a given directive;\n     * - index of a directive.\n     *\n     * We are storing those indexes so we can refresh content queries as part of a view refresh\n     * process.\n     * @type {?}\n     */\n    TView.prototype.contentQueries;\n    /**\n     * Set of schemas that declare elements to be allowed inside the view.\n     * @type {?}\n     */\n    TView.prototype.schemas;\n    /**\n     * Array of constants for the view. Includes attribute arrays, local definition arrays etc.\n     * Used for directive matching, attribute bindings, local definitions and more.\n     * @type {?}\n     */\n    TView.prototype.consts;\n    /**\n     * Indicates that there was an error before we managed to complete the first create pass of the\n     * view. This means that the view is likely corrupted and we should try to recover it.\n     * @type {?}\n     */\n    TView.prototype.incompleteFirstPass;\n}\n/** @enum {number} */\nconst RootContextFlags = {\n    Empty: 0,\n    DetectChanges: 1,\n    FlushPlayers: 2,\n};\n/**\n * RootContext contains information which is shared for all components which\n * were bootstrapped with {\\@link renderComponent}.\n * @record\n */\nfunction RootContext() { }\nif (false) {\n    /**\n     * A function used for scheduling change detection in the future. Usually\n     * this is `requestAnimationFrame`.\n     * @type {?}\n     */\n    RootContext.prototype.scheduler;\n    /**\n     * A promise which is resolved when all components are considered clean (not dirty).\n     *\n     * This promise is overwritten every time a first call to {\\@link markDirty} is invoked.\n     * @type {?}\n     */\n    RootContext.prototype.clean;\n    /**\n     * RootComponents - The components that were instantiated by the call to\n     * {\\@link renderComponent}.\n     * @type {?}\n     */\n    RootContext.prototype.components;\n    /**\n     * The player flushing handler to kick off all animations\n     * @type {?}\n     */\n    RootContext.prototype.playerHandler;\n    /**\n     * What render-related operations to run once a scheduler has been set\n     * @type {?}\n     */\n    RootContext.prototype.flags;\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/container.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Special location which allows easy identification of type. If we have an array which was\n * retrieved from the `LView` and that array has `true` at `TYPE` location, we know it is\n * `LContainer`.\n * @type {?}\n */\nconst TYPE = 1;\n/**\n * Flag to signify that this `LContainer` may have transplanted views which need to be change\n * detected. (see: `LView[DECLARATION_COMPONENT_VIEW])`.\n *\n * This flag, once set, is never unset for the `LContainer`. This means that when unset we can skip\n * a lot of work in `refreshEmbeddedViews`. But when set we still need to verify\n * that the `MOVED_VIEWS` are transplanted and on-push.\n * @type {?}\n */\nconst HAS_TRANSPLANTED_VIEWS = 2;\n// PARENT, NEXT, TRANSPLANTED_VIEWS_TO_REFRESH are indices 3, 4, and 5\n// As we already have these constants in LView, we don't need to re-create them.\n// T_HOST is index 6\n// We already have this constants in LView, we don't need to re-create it.\n/** @type {?} */\nconst NATIVE = 7;\n/** @type {?} */\nconst VIEW_REFS = 8;\n/** @type {?} */\nconst MOVED_VIEWS = 9;\n/**\n * Size of LContainer's header. Represents the index after which all views in the\n * container will be inserted. We need to keep a record of current views so we know\n * which views are already in the DOM (and don't need to be re-added) and so we can\n * remove views from the DOM when they are no longer required.\n * @type {?}\n */\nconst CONTAINER_HEADER_OFFSET = 10;\n/**\n * The state associated with a container.\n *\n * This is an array so that its structure is closer to LView. This helps\n * when traversing the view tree (which is a mix of containers and component\n * views), so we can jump to viewOrContainer[NEXT] in the same way regardless\n * of type.\n * @record\n */\nfunction LContainer() { }\nif (false) {\n    /* Skipping unnamed member:\n    readonly[HOST]: RElement|RComment|LView;*/\n    /* Skipping unnamed member:\n    [TYPE]: true;*/\n    /* Skipping unnamed member:\n    [HAS_TRANSPLANTED_VIEWS]: boolean;*/\n    /* Skipping unnamed member:\n    [PARENT]: LView;*/\n    /* Skipping unnamed member:\n    [NEXT]: LView|LContainer|null;*/\n    /* Skipping unnamed member:\n    [TRANSPLANTED_VIEWS_TO_REFRESH]: number;*/\n    /* Skipping unnamed member:\n    [MOVED_VIEWS]: LView[]|null;*/\n    /* Skipping unnamed member:\n    [T_HOST]: TNode;*/\n    /* Skipping unnamed member:\n    readonly[NATIVE]:\n          RComment;*/\n    /* Skipping unnamed member:\n    [VIEW_REFS]: ViewRef[]|null;*/\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$1 = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/type_checks.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * True if `value` is `LView`.\n * @param {?} value wrapped value of `RNode`, `LView`, `LContainer`\n * @return {?}\n */\nfunction isLView(value) {\n    return Array.isArray(value) && typeof value[TYPE] === 'object';\n}\n/**\n * True if `value` is `LContainer`.\n * @param {?} value wrapped value of `RNode`, `LView`, `LContainer`\n * @return {?}\n */\nfunction isLContainer(value) {\n    return Array.isArray(value) && value[TYPE] === true;\n}\n/**\n * @param {?} tNode\n * @return {?}\n */\nfunction isContentQueryHost(tNode) {\n    return (tNode.flags & 8 /* hasContentQuery */) !== 0;\n}\n/**\n * @param {?} tNode\n * @return {?}\n */\nfunction isComponentHost(tNode) {\n    return (tNode.flags & 2 /* isComponentHost */) === 2 /* isComponentHost */;\n}\n/**\n * @param {?} tNode\n * @return {?}\n */\nfunction isDirectiveHost(tNode) {\n    return (tNode.flags & 1 /* isDirectiveHost */) === 1 /* isDirectiveHost */;\n}\n/**\n * @template T\n * @param {?} def\n * @return {?}\n */\nfunction isComponentDef(def) {\n    return ((/** @type {?} */ (def))).template !== null;\n}\n/**\n * @param {?} target\n * @return {?}\n */\nfunction isRootView(target) {\n    return (target[FLAGS] & 512 /* IsRoot */) !== 0;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/assert.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// [Assert functions do not constraint type when they are guarded by a truthy\n// expression.](https://github.com/microsoft/TypeScript/issues/37295)\n/**\n * @param {?} tNode\n * @param {?} lView\n * @return {?}\n */\nfunction assertTNodeForLView(tNode, lView) {\n    tNode.hasOwnProperty('tView_') &&\n        assertEqual(((/** @type {?} */ ((/** @type {?} */ (tNode))))).tView_, lView[TVIEW], 'This TNode does not belong to this LView.');\n}\n/**\n * @param {?} actual\n * @param {?=} msg\n * @return {?}\n */\nfunction assertComponentType(actual, msg = 'Type passed in is not ComponentType, it does not have \\'ɵcmp\\' property.') {\n    if (!getComponentDef(actual)) {\n        throwError(msg);\n    }\n}\n/**\n * @param {?} actual\n * @param {?=} msg\n * @return {?}\n */\nfunction assertNgModuleType(actual, msg = 'Type passed in is not NgModuleType, it does not have \\'ɵmod\\' property.') {\n    if (!getNgModuleDef(actual)) {\n        throwError(msg);\n    }\n}\n/**\n * @param {?} isParent\n * @return {?}\n */\nfunction assertPreviousIsParent(isParent) {\n    assertEqual(isParent, true, 'previousOrParentTNode should be a parent');\n}\n/**\n * @param {?} tNode\n * @return {?}\n */\nfunction assertHasParent(tNode) {\n    assertDefined(tNode, 'previousOrParentTNode should exist!');\n    assertDefined((/** @type {?} */ (tNode)).parent, 'previousOrParentTNode should have a parent');\n}\n/**\n * @param {?} lView\n * @param {?} index\n * @param {?=} arr\n * @return {?}\n */\nfunction assertDataNext(lView, index, arr) {\n    if (arr == null)\n        arr = lView;\n    assertEqual(arr.length, index, `index ${index} expected to be at the end of arr (length ${arr.length})`);\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction assertLContainer(value) {\n    assertDefined(value, 'LContainer must be defined');\n    assertEqual(isLContainer(value), true, 'Expecting LContainer');\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction assertLViewOrUndefined(value) {\n    value && assertEqual(isLView(value), true, 'Expecting LView or undefined or null');\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction assertLView(value) {\n    assertDefined(value, 'LView must be defined');\n    assertEqual(isLView(value), true, 'Expecting LView');\n}\n/**\n * @param {?} tView\n * @param {?=} errMessage\n * @return {?}\n */\nfunction assertFirstCreatePass(tView, errMessage) {\n    assertEqual(tView.firstCreatePass, true, errMessage || 'Should only be called in first create pass.');\n}\n/**\n * @param {?} tView\n * @param {?=} errMessage\n * @return {?}\n */\nfunction assertFirstUpdatePass(tView, errMessage) {\n    assertEqual(tView.firstUpdatePass, true, errMessage || 'Should only be called in first update pass.');\n}\n/**\n * This is a basic sanity check that an object is probably a directive def. DirectiveDef is\n * an interface, so we can't do a direct instanceof check.\n * @template T\n * @param {?} obj\n * @return {?}\n */\nfunction assertDirectiveDef(obj) {\n    if (obj.type === undefined || obj.selectors == undefined || obj.inputs === undefined) {\n        throwError(`Expected a DirectiveDef/ComponentDef and this object does not seem to have the expected shape.`);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/namespaces.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst SVG_NAMESPACE = 'http://www.w3.org/2000/svg';\n/** @type {?} */\nconst MATH_ML_NAMESPACE = 'http://www.w3.org/1998/MathML/';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/context.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This property will be monkey-patched on elements, components and directives\n * @type {?}\n */\nconst MONKEY_PATCH_KEY_NAME = '__ngContext__';\n/**\n * The internal view context which is specific to a given DOM element, directive or\n * component instance. Each value in here (besides the LView and element node details)\n * can be present, null or undefined. If undefined then it implies the value has not been\n * looked up yet, otherwise, if null, then a lookup was executed and nothing was found.\n *\n * Each value will get filled when the respective value is examined within the getContext\n * function. The component, element and each directive instance will share the same instance\n * of the context.\n * @record\n */\nfunction LContext() { }\nif (false) {\n    /**\n     * The component's parent view data.\n     * @type {?}\n     */\n    LContext.prototype.lView;\n    /**\n     * The index instance of the node.\n     * @type {?}\n     */\n    LContext.prototype.nodeIndex;\n    /**\n     * The instance of the DOM node that is attached to the lNode.\n     * @type {?}\n     */\n    LContext.prototype.native;\n    /**\n     * The instance of the Component node.\n     * @type {?}\n     */\n    LContext.prototype.component;\n    /**\n     * The list of active directives that exist on this element.\n     * @type {?}\n     */\n    LContext.prototype.directives;\n    /**\n     * The map of local references (local reference name => element or directive instance) that exist\n     * on this element.\n     * @type {?}\n     */\n    LContext.prototype.localRefs;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/document.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Most of the use of `document` in Angular is from within the DI system so it is possible to simply\n * inject the `DOCUMENT` token and are done.\n *\n * Ivy is special because it does not rely upon the DI and must get hold of the document some other\n * way.\n *\n * The solution is to define `getDocument()` and `setDocument()` top-level functions for ivy.\n * Wherever ivy needs the global document, it calls `getDocument()` instead.\n *\n * When running ivy outside of a browser environment, it is necessary to call `setDocument()` to\n * tell ivy what the global `document` is.\n *\n * Angular does this for us in each of the standard platforms (`Browser`, `Server`, and `WebWorker`)\n * by calling `setDocument()` when providing the `DOCUMENT` token.\n * @type {?}\n */\nlet DOCUMENT = undefined;\n/**\n * Tell ivy what the `document` is for this platform.\n *\n * It is only necessary to call this if the current platform is not a browser.\n *\n * @param {?} document The object representing the global `document` in this environment.\n * @return {?}\n */\nfunction setDocument(document) {\n    DOCUMENT = document;\n}\n/**\n * Access the object that represents the `document` for this platform.\n *\n * Ivy calls this whenever it needs to access the `document` object.\n * For example to create the renderer or to do sanitization.\n * @return {?}\n */\nfunction getDocument() {\n    if (DOCUMENT !== undefined) {\n        return DOCUMENT;\n    }\n    else if (typeof document !== 'undefined') {\n        return document;\n    }\n    // No \"document\" can be found. This should only happen if we are running ivy outside Angular and\n    // the current platform is not a browser. Since this is not a supported scenario at the moment\n    // this should not happen in Angular apps.\n    // Once we support running ivy outside of Angular we will need to publish `setDocument()` as a\n    // public API. Meanwhile we just return `undefined` and let the application fail.\n    return (/** @type {?} */ (undefined));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/renderer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @enum {number} */\nconst RendererStyleFlags3 = {\n    Important: 1,\n    DashCase: 2,\n};\nRendererStyleFlags3[RendererStyleFlags3.Important] = 'Important';\nRendererStyleFlags3[RendererStyleFlags3.DashCase] = 'DashCase';\n/**\n * Object Oriented style of API needed to create elements and text nodes.\n *\n * This is the native browser API style, e.g. operations are methods on individual objects\n * like HTMLElement. With this style, no additional code is needed as a facade\n * (reducing payload size).\n *\n * @record\n */\nfunction ObjectOrientedRenderer3() { }\nif (false) {\n    /**\n     * @param {?} data\n     * @return {?}\n     */\n    ObjectOrientedRenderer3.prototype.createComment = function (data) { };\n    /**\n     * @param {?} tagName\n     * @return {?}\n     */\n    ObjectOrientedRenderer3.prototype.createElement = function (tagName) { };\n    /**\n     * @param {?} namespace\n     * @param {?} tagName\n     * @return {?}\n     */\n    ObjectOrientedRenderer3.prototype.createElementNS = function (namespace, tagName) { };\n    /**\n     * @param {?} data\n     * @return {?}\n     */\n    ObjectOrientedRenderer3.prototype.createTextNode = function (data) { };\n    /**\n     * @param {?} selectors\n     * @return {?}\n     */\n    ObjectOrientedRenderer3.prototype.querySelector = function (selectors) { };\n}\n/**\n * Returns whether the `renderer` is a `ProceduralRenderer3`\n * @param {?} renderer\n * @return {?}\n */\nfunction isProceduralRenderer(renderer) {\n    return !!(((/** @type {?} */ (renderer))).listen);\n}\n/**\n * Procedural style of API needed to create elements and text nodes.\n *\n * In non-native browser environments (e.g. platforms such as web-workers), this is the\n * facade that enables element manipulation. This also facilitates backwards compatibility\n * with Renderer2.\n * @record\n */\nfunction ProceduralRenderer3() { }\nif (false) {\n    /**\n     * This property is allowed to be null / undefined,\n     * in which case the view engine won't call it.\n     * This is used as a performance optimization for production mode.\n     * @type {?|undefined}\n     */\n    ProceduralRenderer3.prototype.destroyNode;\n    /**\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.destroy = function () { };\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.createComment = function (value) { };\n    /**\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.createElement = function (name, namespace) { };\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.createText = function (value) { };\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.appendChild = function (parent, newChild) { };\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @param {?} refChild\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.insertBefore = function (parent, newChild, refChild) { };\n    /**\n     * @param {?} parent\n     * @param {?} oldChild\n     * @param {?=} isHostElement\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.removeChild = function (parent, oldChild, isHostElement) { };\n    /**\n     * @param {?} selectorOrNode\n     * @param {?=} preserveContent\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.selectRootElement = function (selectorOrNode, preserveContent) { };\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.parentNode = function (node) { };\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.nextSibling = function (node) { };\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @param {?=} namespace\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.setAttribute = function (el, name, value, namespace) { };\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.removeAttribute = function (el, name, namespace) { };\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.addClass = function (el, name) { };\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.removeClass = function (el, name) { };\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?} value\n     * @param {?=} flags\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.setStyle = function (el, style, value, flags) { };\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?=} flags\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.removeStyle = function (el, style, flags) { };\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.setProperty = function (el, name, value) { };\n    /**\n     * @param {?} node\n     * @param {?} value\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.setValue = function (node, value) { };\n    /**\n     * @param {?} target\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    ProceduralRenderer3.prototype.listen = function (target, eventName, callback) { };\n}\n/**\n * @record\n */\nfunction RendererFactory3() { }\nif (false) {\n    /**\n     * @param {?} hostElement\n     * @param {?} rendererType\n     * @return {?}\n     */\n    RendererFactory3.prototype.createRenderer = function (hostElement, rendererType) { };\n    /**\n     * @return {?}\n     */\n    RendererFactory3.prototype.begin = function () { };\n    /**\n     * @return {?}\n     */\n    RendererFactory3.prototype.end = function () { };\n}\nconst ɵ0$2 = /**\n * @param {?} hostElement\n * @param {?} rendererType\n * @return {?}\n */\n(hostElement, rendererType) => {\n    return getDocument();\n};\n/** @type {?} */\nconst domRendererFactory3 = {\n    createRenderer: (ɵ0$2)\n};\n/**\n * Subset of API needed for appending elements and text nodes.\n * @record\n */\nfunction RNode() { }\nif (false) {\n    /**\n     * Returns the parent Element, Document, or DocumentFragment\n     * @type {?}\n     */\n    RNode.prototype.parentNode;\n    /**\n     * Returns the parent Element if there is one\n     * @type {?}\n     */\n    RNode.prototype.parentElement;\n    /**\n     * Gets the Node immediately following this one in the parent's childNodes\n     * @type {?}\n     */\n    RNode.prototype.nextSibling;\n    /**\n     * Removes a child from the current node and returns the removed node\n     * @param {?} oldChild the child node to remove\n     * @return {?}\n     */\n    RNode.prototype.removeChild = function (oldChild) { };\n    /**\n     * Insert a child node.\n     *\n     * Used exclusively for adding View root nodes into ViewAnchor location.\n     * @param {?} newChild\n     * @param {?} refChild\n     * @param {?} isViewRoot\n     * @return {?}\n     */\n    RNode.prototype.insertBefore = function (newChild, refChild, isViewRoot) { };\n    /**\n     * Append a child node.\n     *\n     * Used exclusively for building up DOM which are static (ie not View roots)\n     * @param {?} newChild\n     * @return {?}\n     */\n    RNode.prototype.appendChild = function (newChild) { };\n}\n/**\n * Subset of API needed for writing attributes, properties, and setting up\n * listeners on Element.\n * @record\n */\nfunction RElement() { }\nif (false) {\n    /** @type {?} */\n    RElement.prototype.style;\n    /** @type {?} */\n    RElement.prototype.classList;\n    /** @type {?} */\n    RElement.prototype.className;\n    /** @type {?} */\n    RElement.prototype.textContent;\n    /**\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    RElement.prototype.setAttribute = function (name, value) { };\n    /**\n     * @param {?} name\n     * @return {?}\n     */\n    RElement.prototype.removeAttribute = function (name) { };\n    /**\n     * @param {?} namespaceURI\n     * @param {?} qualifiedName\n     * @param {?} value\n     * @return {?}\n     */\n    RElement.prototype.setAttributeNS = function (namespaceURI, qualifiedName, value) { };\n    /**\n     * @param {?} type\n     * @param {?} listener\n     * @param {?=} useCapture\n     * @return {?}\n     */\n    RElement.prototype.addEventListener = function (type, listener, useCapture) { };\n    /**\n     * @param {?} type\n     * @param {?=} listener\n     * @param {?=} options\n     * @return {?}\n     */\n    RElement.prototype.removeEventListener = function (type, listener, options) { };\n    /**\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    RElement.prototype.setProperty = function (name, value) { };\n}\n/**\n * @record\n */\nfunction RCssStyleDeclaration() { }\nif (false) {\n    /**\n     * @param {?} propertyName\n     * @return {?}\n     */\n    RCssStyleDeclaration.prototype.removeProperty = function (propertyName) { };\n    /**\n     * @param {?} propertyName\n     * @param {?} value\n     * @param {?=} priority\n     * @return {?}\n     */\n    RCssStyleDeclaration.prototype.setProperty = function (propertyName, value, priority) { };\n}\n/**\n * @record\n */\nfunction RDomTokenList() { }\nif (false) {\n    /**\n     * @param {?} token\n     * @return {?}\n     */\n    RDomTokenList.prototype.add = function (token) { };\n    /**\n     * @param {?} token\n     * @return {?}\n     */\n    RDomTokenList.prototype.remove = function (token) { };\n}\n/**\n * @record\n */\nfunction RText() { }\nif (false) {\n    /** @type {?} */\n    RText.prototype.textContent;\n}\n/**\n * @record\n */\nfunction RComment() { }\nif (false) {\n    /** @type {?} */\n    RComment.prototype.textContent;\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$2 = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/view_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * For efficiency reasons we often put several different data types (`RNode`, `LView`, `LContainer`)\n * in same location in `LView`. This is because we don't want to pre-allocate space for it\n * because the storage is sparse. This file contains utilities for dealing with such data types.\n *\n * How do we know what is stored at a given location in `LView`.\n * - `Array.isArray(value) === false` => `RNode` (The normal storage value)\n * - `Array.isArray(value) === true` => then the `value[0]` represents the wrapped value.\n *   - `typeof value[TYPE] === 'object'` => `LView`\n *      - This happens when we have a component at a given location\n *   - `typeof value[TYPE] === true` => `LContainer`\n *      - This happens when we have `LContainer` binding at a given location.\n *\n *\n * NOTE: it is assumed that `Array.isArray` and `typeof` operations are very efficient.\n */\n/**\n * Returns `RNode`.\n * @param {?} value wrapped value of `RNode`, `LView`, `LContainer`\n * @return {?}\n */\nfunction unwrapRNode(value) {\n    while (Array.isArray(value)) {\n        value = (/** @type {?} */ (value[HOST]));\n    }\n    return (/** @type {?} */ (value));\n}\n/**\n * Returns `LView` or `null` if not found.\n * @param {?} value wrapped value of `RNode`, `LView`, `LContainer`\n * @return {?}\n */\nfunction unwrapLView(value) {\n    while (Array.isArray(value)) {\n        // This check is same as `isLView()` but we don't call at as we don't want to call\n        // `Array.isArray()` twice and give JITer more work for inlining.\n        if (typeof value[TYPE] === 'object')\n            return (/** @type {?} */ (value));\n        value = (/** @type {?} */ (value[HOST]));\n    }\n    return null;\n}\n/**\n * Returns `LContainer` or `null` if not found.\n * @param {?} value wrapped value of `RNode`, `LView`, `LContainer`\n * @return {?}\n */\nfunction unwrapLContainer(value) {\n    while (Array.isArray(value)) {\n        // This check is same as `isLContainer()` but we don't call at as we don't want to call\n        // `Array.isArray()` twice and give JITer more work for inlining.\n        if (value[TYPE] === true)\n            return (/** @type {?} */ (value));\n        value = (/** @type {?} */ (value[HOST]));\n    }\n    return null;\n}\n/**\n * Retrieves an element value from the provided `viewData`, by unwrapping\n * from any containers, component views, or style contexts.\n * @param {?} index\n * @param {?} lView\n * @return {?}\n */\nfunction getNativeByIndex(index, lView) {\n    return unwrapRNode(lView[index + HEADER_OFFSET]);\n}\n/**\n * Retrieve an `RNode` for a given `TNode` and `LView`.\n *\n * This function guarantees in dev mode to retrieve a non-null `RNode`.\n *\n * @param {?} tNode\n * @param {?} lView\n * @return {?}\n */\nfunction getNativeByTNode(tNode, lView) {\n    ngDevMode && assertTNodeForLView(tNode, lView);\n    ngDevMode && assertDataInRange(lView, tNode.index);\n    /** @type {?} */\n    const node = unwrapRNode(lView[tNode.index]);\n    ngDevMode && !isProceduralRenderer(lView[RENDERER]) && assertDomNode(node);\n    return node;\n}\n/**\n * Retrieve an `RNode` or `null` for a given `TNode` and `LView`.\n *\n * Some `TNode`s don't have associated `RNode`s. For example `Projection`\n *\n * @param {?} tNode\n * @param {?} lView\n * @return {?}\n */\nfunction getNativeByTNodeOrNull(tNode, lView) {\n    /** @type {?} */\n    const index = tNode.index;\n    if (index !== -1) {\n        ngDevMode && assertTNodeForLView(tNode, lView);\n        /** @type {?} */\n        const node = unwrapRNode(lView[index]);\n        ngDevMode && node !== null && !isProceduralRenderer(lView[RENDERER]) && assertDomNode(node);\n        return node;\n    }\n    return null;\n}\n/**\n * @param {?} tView\n * @param {?} index\n * @return {?}\n */\nfunction getTNode(tView, index) {\n    ngDevMode && assertGreaterThan(index, -1, 'wrong index for TNode');\n    ngDevMode && assertLessThan(index, tView.data.length, 'wrong index for TNode');\n    return (/** @type {?} */ (tView.data[index + HEADER_OFFSET]));\n}\n/**\n * Retrieves a value from any `LView` or `TData`.\n * @template T\n * @param {?} view\n * @param {?} index\n * @return {?}\n */\nfunction load(view, index) {\n    ngDevMode && assertDataInRange(view, index + HEADER_OFFSET);\n    return view[index + HEADER_OFFSET];\n}\n/**\n * @param {?} nodeIndex\n * @param {?} hostView\n * @return {?}\n */\nfunction getComponentLViewByIndex(nodeIndex, hostView) {\n    // Could be an LView or an LContainer. If LContainer, unwrap to find LView.\n    ngDevMode && assertDataInRange(hostView, nodeIndex);\n    /** @type {?} */\n    const slotValue = hostView[nodeIndex];\n    /** @type {?} */\n    const lView = isLView(slotValue) ? slotValue : slotValue[HOST];\n    return lView;\n}\n/**\n * Returns the monkey-patch value data present on the target (which could be\n * a component, directive or a DOM node).\n * @param {?} target\n * @return {?}\n */\nfunction readPatchedData(target) {\n    ngDevMode && assertDefined(target, 'Target expected');\n    return target[MONKEY_PATCH_KEY_NAME] || null;\n}\n/**\n * @param {?} target\n * @return {?}\n */\nfunction readPatchedLView(target) {\n    /** @type {?} */\n    const value = readPatchedData(target);\n    if (value) {\n        return Array.isArray(value) ? value : ((/** @type {?} */ (value))).lView;\n    }\n    return null;\n}\n/**\n * Checks whether a given view is in creation mode\n * @param {?} view\n * @return {?}\n */\nfunction isCreationMode(view) {\n    return (view[FLAGS] & 4 /* CreationMode */) === 4 /* CreationMode */;\n}\n/**\n * Returns a boolean for whether the view is attached to the change detection tree.\n *\n * Note: This determines whether a view should be checked, not whether it's inserted\n * into a container. For that, you'll want `viewAttachedToContainer` below.\n * @param {?} view\n * @return {?}\n */\nfunction viewAttachedToChangeDetector(view) {\n    return (view[FLAGS] & 128 /* Attached */) === 128 /* Attached */;\n}\n/**\n * Returns a boolean for whether the view is attached to a container.\n * @param {?} view\n * @return {?}\n */\nfunction viewAttachedToContainer(view) {\n    return isLContainer(view[PARENT]);\n}\n/**\n * Returns a constant from `TConstants` instance.\n * @template T\n * @param {?} consts\n * @param {?} index\n * @return {?}\n */\nfunction getConstant(consts, index) {\n    return consts === null || index == null ? null : (/** @type {?} */ ((/** @type {?} */ (consts[index]))));\n}\n/**\n * Resets the pre-order hook flags of the view.\n * @param {?} lView the LView on which the flags are reset\n * @return {?}\n */\nfunction resetPreOrderHookFlags(lView) {\n    lView[PREORDER_HOOK_FLAGS] = 0;\n}\n/**\n * Updates the `TRANSPLANTED_VIEWS_TO_REFRESH` counter on the `LContainer` as well as the parents\n * whose\n *  1. counter goes from 0 to 1, indicating that there is a new child that has a view to refresh\n *  or\n *  2. counter goes from 1 to 0, indicating there are no more descendant views to refresh\n * @param {?} lContainer\n * @param {?} amount\n * @return {?}\n */\nfunction updateTransplantedViewCount(lContainer, amount) {\n    lContainer[TRANSPLANTED_VIEWS_TO_REFRESH] += amount;\n    /** @type {?} */\n    let viewOrContainer = lContainer;\n    /** @type {?} */\n    let parent = lContainer[PARENT];\n    while (parent !== null &&\n        ((amount === 1 && viewOrContainer[TRANSPLANTED_VIEWS_TO_REFRESH] === 1) ||\n            (amount === -1 && viewOrContainer[TRANSPLANTED_VIEWS_TO_REFRESH] === 0))) {\n        parent[TRANSPLANTED_VIEWS_TO_REFRESH] += amount;\n        viewOrContainer = parent;\n        parent = parent[PARENT];\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/state.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n *\n * @record\n */\nfunction LFrame() { }\nif (false) {\n    /**\n     * Parent LFrame.\n     *\n     * This is needed when `leaveView` is called to restore the previous state.\n     * @type {?}\n     */\n    LFrame.prototype.parent;\n    /**\n     * Child LFrame.\n     *\n     * This is used to cache existing LFrames to relieve the memory pressure.\n     * @type {?}\n     */\n    LFrame.prototype.child;\n    /**\n     * State of the current view being processed.\n     *\n     * An array of nodes (text, element, container, etc), pipes, their bindings, and\n     * any local variables that need to be stored between invocations.\n     * @type {?}\n     */\n    LFrame.prototype.lView;\n    /**\n     * Current `TView` associated with the `LFrame.lView`.\n     *\n     * One can get `TView` from `lFrame[TVIEW]` however because it is so common it makes sense to\n     * store it in `LFrame` for perf reasons.\n     * @type {?}\n     */\n    LFrame.prototype.tView;\n    /**\n     * Used to set the parent property when nodes are created and track query results.\n     *\n     * This is used in conjunction with `isParent`.\n     * @type {?}\n     */\n    LFrame.prototype.previousOrParentTNode;\n    /**\n     * If `isParent` is:\n     *  - `true`: then `previousOrParentTNode` points to a parent node.\n     *  - `false`: then `previousOrParentTNode` points to previous node (sibling).\n     * @type {?}\n     */\n    LFrame.prototype.isParent;\n    /**\n     * Index of currently selected element in LView.\n     *\n     * Used by binding instructions. Updated as part of advance instruction.\n     * @type {?}\n     */\n    LFrame.prototype.selectedIndex;\n    /**\n     * Current pointer to the binding index.\n     * @type {?}\n     */\n    LFrame.prototype.bindingIndex;\n    /**\n     * The last viewData retrieved by nextContext().\n     * Allows building nextContext() and reference() calls.\n     *\n     * e.g. const inner = x().$implicit; const outer = x().$implicit;\n     * @type {?}\n     */\n    LFrame.prototype.contextLView;\n    /**\n     * Store the element depth count. This is used to identify the root elements of the template\n     * so that we can then attach patch data `LView` to only those elements. We know that those\n     * are the only places where the patch data could change, this way we will save on number\n     * of places where tha patching occurs.\n     * @type {?}\n     */\n    LFrame.prototype.elementDepthCount;\n    /**\n     * Current namespace to be used when creating elements\n     * @type {?}\n     */\n    LFrame.prototype.currentNamespace;\n    /**\n     * Current sanitizer\n     * @type {?}\n     */\n    LFrame.prototype.currentSanitizer;\n    /**\n     * The root index from which pure function instructions should calculate their binding\n     * indices. In component views, this is TView.bindingStartIndex. In a host binding\n     * context, this is the TView.expandoStartIndex + any dirs/hostVars before the given dir.\n     * @type {?}\n     */\n    LFrame.prototype.bindingRootIndex;\n    /**\n     * Current index of a View or Content Query which needs to be processed next.\n     * We iterate over the list of Queries and increment current query index at every step.\n     * @type {?}\n     */\n    LFrame.prototype.currentQueryIndex;\n    /**\n     * When host binding is executing this points to the directive index.\n     * `TView.data[currentDirectiveIndex]` is `DirectiveDef`\n     * `LView[currentDirectiveIndex]` is directive instance.\n     * @type {?}\n     */\n    LFrame.prototype.currentDirectiveIndex;\n}\n/**\n * All implicit instruction state is stored here.\n *\n * It is useful to have a single object where all of the state is stored as a mental model\n * (rather it being spread across many different variables.)\n *\n * PERF NOTE: Turns out that writing to a true global variable is slower than\n * having an intermediate object with properties.\n * @record\n */\nfunction InstructionState() { }\nif (false) {\n    /**\n     * Current `LFrame`\n     *\n     * `null` if we have not called `enterView`\n     * @type {?}\n     */\n    InstructionState.prototype.lFrame;\n    /**\n     * Stores whether directives should be matched to elements.\n     *\n     * When template contains `ngNonBindable` then we need to prevent the runtime from matching\n     * directives on children of that element.\n     *\n     * Example:\n     * ```\n     * <my-comp my-directive>\n     *   Should match component / directive.\n     * </my-comp>\n     * <div ngNonBindable>\n     *   <my-comp my-directive>\n     *     Should not match component / directive because we are in ngNonBindable.\n     *   </my-comp>\n     * </div>\n     * ```\n     * @type {?}\n     */\n    InstructionState.prototype.bindingsEnabled;\n    /**\n     * In this mode, any changes in bindings will throw an ExpressionChangedAfterChecked error.\n     *\n     * Necessary to support ChangeDetectorRef.checkNoChanges().\n     * @type {?}\n     */\n    InstructionState.prototype.checkNoChangesMode;\n}\n/** @type {?} */\nconst instructionState = {\n    lFrame: createLFrame(null),\n    bindingsEnabled: true,\n    checkNoChangesMode: false,\n};\n/**\n * @return {?}\n */\nfunction getElementDepthCount() {\n    return instructionState.lFrame.elementDepthCount;\n}\n/**\n * @return {?}\n */\nfunction increaseElementDepthCount() {\n    instructionState.lFrame.elementDepthCount++;\n}\n/**\n * @return {?}\n */\nfunction decreaseElementDepthCount() {\n    instructionState.lFrame.elementDepthCount--;\n}\n/**\n * @return {?}\n */\nfunction getBindingsEnabled() {\n    return instructionState.bindingsEnabled;\n}\n/**\n * Enables directive matching on elements.\n *\n *  * Example:\n * ```\n * <my-comp my-directive>\n *   Should match component / directive.\n * </my-comp>\n * <div ngNonBindable>\n *   <!-- ɵɵdisableBindings() -->\n *   <my-comp my-directive>\n *     Should not match component / directive because we are in ngNonBindable.\n *   </my-comp>\n *   <!-- ɵɵenableBindings() -->\n * </div>\n * ```\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵenableBindings() {\n    instructionState.bindingsEnabled = true;\n}\n/**\n * Disables directive matching on element.\n *\n *  * Example:\n * ```\n * <my-comp my-directive>\n *   Should match component / directive.\n * </my-comp>\n * <div ngNonBindable>\n *   <!-- ɵɵdisableBindings() -->\n *   <my-comp my-directive>\n *     Should not match component / directive because we are in ngNonBindable.\n *   </my-comp>\n *   <!-- ɵɵenableBindings() -->\n * </div>\n * ```\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵdisableBindings() {\n    instructionState.bindingsEnabled = false;\n}\n/**\n * Return the current `LView`.\n * @return {?}\n */\nfunction getLView() {\n    return instructionState.lFrame.lView;\n}\n/**\n * Return the current `TView`.\n * @return {?}\n */\nfunction getTView() {\n    return instructionState.lFrame.tView;\n}\n/**\n * Restores `contextViewData` to the given OpaqueViewState instance.\n *\n * Used in conjunction with the getCurrentView() instruction to save a snapshot\n * of the current view and restore it when listeners are invoked. This allows\n * walking the declaration view tree in listeners to get vars from parent views.\n *\n * \\@codeGenApi\n * @param {?} viewToRestore The OpaqueViewState instance to restore.\n *\n * @return {?}\n */\nfunction ɵɵrestoreView(viewToRestore) {\n    instructionState.lFrame.contextLView = (/** @type {?} */ ((/** @type {?} */ (viewToRestore))));\n}\n/**\n * @return {?}\n */\nfunction getPreviousOrParentTNode() {\n    return instructionState.lFrame.previousOrParentTNode;\n}\n/**\n * @param {?} tNode\n * @param {?} isParent\n * @return {?}\n */\nfunction setPreviousOrParentTNode(tNode, isParent) {\n    instructionState.lFrame.previousOrParentTNode = tNode;\n    instructionState.lFrame.isParent = isParent;\n}\n/**\n * @return {?}\n */\nfunction getIsParent() {\n    return instructionState.lFrame.isParent;\n}\n/**\n * @return {?}\n */\nfunction setIsNotParent() {\n    instructionState.lFrame.isParent = false;\n}\n/**\n * @return {?}\n */\nfunction setIsParent() {\n    instructionState.lFrame.isParent = true;\n}\n/**\n * @return {?}\n */\nfunction getContextLView() {\n    return instructionState.lFrame.contextLView;\n}\n/**\n * @return {?}\n */\nfunction getCheckNoChangesMode() {\n    // TODO(misko): remove this from the LView since it is ngDevMode=true mode only.\n    return instructionState.checkNoChangesMode;\n}\n/**\n * @param {?} mode\n * @return {?}\n */\nfunction setCheckNoChangesMode(mode) {\n    instructionState.checkNoChangesMode = mode;\n}\n// top level variables should not be exported for performance reasons (PERF_NOTES.md)\n/**\n * @return {?}\n */\nfunction getBindingRoot() {\n    /** @type {?} */\n    const lFrame = instructionState.lFrame;\n    /** @type {?} */\n    let index = lFrame.bindingRootIndex;\n    if (index === -1) {\n        index = lFrame.bindingRootIndex = lFrame.tView.bindingStartIndex;\n    }\n    return index;\n}\n/**\n * @return {?}\n */\nfunction getBindingIndex() {\n    return instructionState.lFrame.bindingIndex;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction setBindingIndex(value) {\n    return instructionState.lFrame.bindingIndex = value;\n}\n/**\n * @return {?}\n */\nfunction nextBindingIndex() {\n    return instructionState.lFrame.bindingIndex++;\n}\n/**\n * @param {?} count\n * @return {?}\n */\nfunction incrementBindingIndex(count) {\n    /** @type {?} */\n    const lFrame = instructionState.lFrame;\n    /** @type {?} */\n    const index = lFrame.bindingIndex;\n    lFrame.bindingIndex = lFrame.bindingIndex + count;\n    return index;\n}\n/**\n * Set a new binding root index so that host template functions can execute.\n *\n * Bindings inside the host template are 0 index. But because we don't know ahead of time\n * how many host bindings we have we can't pre-compute them. For this reason they are all\n * 0 index and we just shift the root so that they match next available location in the LView.\n *\n * @param {?} bindingRootIndex Root index for `hostBindings`\n * @param {?} currentDirectiveIndex `TData[currentDirectiveIndex]` will point to the current directive\n *        whose `hostBindings` are being processed.\n * @return {?}\n */\nfunction setBindingRootForHostBindings(bindingRootIndex, currentDirectiveIndex) {\n    /** @type {?} */\n    const lFrame = instructionState.lFrame;\n    lFrame.bindingIndex = lFrame.bindingRootIndex = bindingRootIndex;\n    setCurrentDirectiveIndex(currentDirectiveIndex);\n}\n/**\n * When host binding is executing this points to the directive index.\n * `TView.data[getCurrentDirectiveIndex()]` is `DirectiveDef`\n * `LView[getCurrentDirectiveIndex()]` is directive instance.\n * @return {?}\n */\nfunction getCurrentDirectiveIndex() {\n    return instructionState.lFrame.currentDirectiveIndex;\n}\n/**\n * Sets an index of a directive whose `hostBindings` are being processed.\n *\n * @param {?} currentDirectiveIndex `TData` index where current directive instance can be found.\n * @return {?}\n */\nfunction setCurrentDirectiveIndex(currentDirectiveIndex) {\n    instructionState.lFrame.currentDirectiveIndex = currentDirectiveIndex;\n}\n/**\n * Retrieve the current `DirectiveDef` which is active when `hostBindings` instruction is being\n * executed.\n *\n * @param {?} tData Current `TData` where the `DirectiveDef` will be looked up at.\n * @return {?}\n */\nfunction getCurrentDirectiveDef(tData) {\n    /** @type {?} */\n    const currentDirectiveIndex = instructionState.lFrame.currentDirectiveIndex;\n    return currentDirectiveIndex === -1 ? null : (/** @type {?} */ (tData[currentDirectiveIndex]));\n}\n/**\n * @return {?}\n */\nfunction getCurrentQueryIndex() {\n    return instructionState.lFrame.currentQueryIndex;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction setCurrentQueryIndex(value) {\n    instructionState.lFrame.currentQueryIndex = value;\n}\n/**\n * This is a light weight version of the `enterView` which is needed by the DI system.\n * @param {?} newView\n * @param {?} tNode\n * @return {?}\n */\nfunction enterDI(newView, tNode) {\n    ngDevMode && assertLViewOrUndefined(newView);\n    /** @type {?} */\n    const newLFrame = allocLFrame();\n    instructionState.lFrame = newLFrame;\n    newLFrame.previousOrParentTNode = (/** @type {?} */ (tNode));\n    newLFrame.lView = newView;\n}\n/**\n * Swap the current lView with a new lView.\n *\n * For performance reasons we store the lView in the top level of the module.\n * This way we minimize the number of properties to read. Whenever a new view\n * is entered we have to store the lView for later, and when the view is\n * exited the state has to be restored\n *\n * @param {?} newView New lView to become active\n * @param {?} tNode Element to which the View is a child of\n * @return {?} the previously active lView;\n */\nfunction enterView(newView, tNode) {\n    ngDevMode && assertLViewOrUndefined(newView);\n    /** @type {?} */\n    const newLFrame = allocLFrame();\n    if (ngDevMode) {\n        assertEqual(newLFrame.isParent, true, 'Expected clean LFrame');\n        assertEqual(newLFrame.lView, null, 'Expected clean LFrame');\n        assertEqual(newLFrame.tView, null, 'Expected clean LFrame');\n        assertEqual(newLFrame.selectedIndex, 0, 'Expected clean LFrame');\n        assertEqual(newLFrame.elementDepthCount, 0, 'Expected clean LFrame');\n        assertEqual(newLFrame.currentDirectiveIndex, -1, 'Expected clean LFrame');\n        assertEqual(newLFrame.currentNamespace, null, 'Expected clean LFrame');\n        assertEqual(newLFrame.currentSanitizer, null, 'Expected clean LFrame');\n        assertEqual(newLFrame.bindingRootIndex, -1, 'Expected clean LFrame');\n        assertEqual(newLFrame.currentQueryIndex, 0, 'Expected clean LFrame');\n    }\n    /** @type {?} */\n    const tView = newView[TVIEW];\n    instructionState.lFrame = newLFrame;\n    newLFrame.previousOrParentTNode = (/** @type {?} */ (tNode));\n    newLFrame.lView = newView;\n    newLFrame.tView = tView;\n    newLFrame.contextLView = (/** @type {?} */ (newView));\n    newLFrame.bindingIndex = tView.bindingStartIndex;\n}\n/**\n * Allocates next free LFrame. This function tries to reuse the `LFrame`s to lower memory pressure.\n * @return {?}\n */\nfunction allocLFrame() {\n    /** @type {?} */\n    const currentLFrame = instructionState.lFrame;\n    /** @type {?} */\n    const childLFrame = currentLFrame === null ? null : currentLFrame.child;\n    /** @type {?} */\n    const newLFrame = childLFrame === null ? createLFrame(currentLFrame) : childLFrame;\n    return newLFrame;\n}\n/**\n * @param {?} parent\n * @return {?}\n */\nfunction createLFrame(parent) {\n    /** @type {?} */\n    const lFrame = {\n        previousOrParentTNode: (/** @type {?} */ (null)),\n        //\n        isParent: true,\n        //\n        lView: (/** @type {?} */ (null)),\n        //\n        tView: (/** @type {?} */ (null)),\n        //\n        selectedIndex: 0,\n        //\n        contextLView: (/** @type {?} */ (null)),\n        //\n        elementDepthCount: 0,\n        //\n        currentNamespace: null,\n        //\n        currentSanitizer: null,\n        //\n        currentDirectiveIndex: -1,\n        //\n        bindingRootIndex: -1,\n        //\n        bindingIndex: -1,\n        //\n        currentQueryIndex: 0,\n        //\n        parent: (/** @type {?} */ (parent)),\n        //\n        child: null,\n    };\n    parent !== null && (parent.child = lFrame); // link the new LFrame for reuse.\n    return lFrame;\n}\n/**\n * A lightweight version of leave which is used with DI.\n *\n * This function only resets `previousOrParentTNode` and `LView` as those are the only properties\n * used with DI (`enterDI()`).\n *\n * NOTE: This function is reexported as `leaveDI`. However `leaveDI` has return type of `void` where\n * as `leaveViewLight` has `LFrame`. This is so that `leaveViewLight` can be used in `leaveView`.\n * @return {?}\n */\nfunction leaveViewLight() {\n    /** @type {?} */\n    const oldLFrame = instructionState.lFrame;\n    instructionState.lFrame = oldLFrame.parent;\n    oldLFrame.previousOrParentTNode = (/** @type {?} */ (null));\n    oldLFrame.lView = (/** @type {?} */ (null));\n    return oldLFrame;\n}\n/**\n * This is a lightweight version of the `leaveView` which is needed by the DI system.\n *\n * NOTE: this function is an alias so that we can change the type of the function to have `void`\n * return type.\n * @type {?}\n */\nconst leaveDI = leaveViewLight;\n/**\n * Leave the current `LView`\n *\n * This pops the `LFrame` with the associated `LView` from the stack.\n *\n * IMPORTANT: We must zero out the `LFrame` values here otherwise they will be retained. This is\n * because for performance reasons we don't release `LFrame` but rather keep it for next use.\n * @return {?}\n */\nfunction leaveView() {\n    /** @type {?} */\n    const oldLFrame = leaveViewLight();\n    oldLFrame.isParent = true;\n    oldLFrame.tView = (/** @type {?} */ (null));\n    oldLFrame.selectedIndex = 0;\n    oldLFrame.contextLView = (/** @type {?} */ (null));\n    oldLFrame.elementDepthCount = 0;\n    oldLFrame.currentDirectiveIndex = -1;\n    oldLFrame.currentNamespace = null;\n    oldLFrame.currentSanitizer = null;\n    oldLFrame.bindingRootIndex = -1;\n    oldLFrame.bindingIndex = -1;\n    oldLFrame.currentQueryIndex = 0;\n}\n/**\n * @template T\n * @param {?} level\n * @return {?}\n */\nfunction nextContextImpl(level) {\n    /** @type {?} */\n    const contextLView = instructionState.lFrame.contextLView =\n        walkUpViews(level, (/** @type {?} */ (instructionState.lFrame.contextLView)));\n    return (/** @type {?} */ (contextLView[CONTEXT]));\n}\n/**\n * @param {?} nestingLevel\n * @param {?} currentView\n * @return {?}\n */\nfunction walkUpViews(nestingLevel, currentView) {\n    while (nestingLevel > 0) {\n        ngDevMode &&\n            assertDefined(currentView[DECLARATION_VIEW], 'Declaration view should be defined if nesting level is greater than 0.');\n        currentView = (/** @type {?} */ (currentView[DECLARATION_VIEW]));\n        nestingLevel--;\n    }\n    return currentView;\n}\n/**\n * Gets the currently selected element index.\n *\n * Used with {\\@link property} instruction (and more in the future) to identify the index in the\n * current `LView` to act on.\n * @return {?}\n */\nfunction getSelectedIndex() {\n    return instructionState.lFrame.selectedIndex;\n}\n/**\n * Sets the most recent index passed to {\\@link select}\n *\n * Used with {\\@link property} instruction (and more in the future) to identify the index in the\n * current `LView` to act on.\n *\n * (Note that if an \"exit function\" was set earlier (via `setElementExitFn()`) then that will be\n * run if and when the provided `index` value is different from the current selected index value.)\n * @param {?} index\n * @return {?}\n */\nfunction setSelectedIndex(index) {\n    instructionState.lFrame.selectedIndex = index;\n}\n/**\n * Gets the `tNode` that represents currently selected element.\n * @return {?}\n */\nfunction getSelectedTNode() {\n    /** @type {?} */\n    const lFrame = instructionState.lFrame;\n    return getTNode(lFrame.tView, lFrame.selectedIndex);\n}\n/**\n * Sets the namespace used to create elements to `'http://www.w3.org/2000/svg'` in global state.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵnamespaceSVG() {\n    instructionState.lFrame.currentNamespace = SVG_NAMESPACE;\n}\n/**\n * Sets the namespace used to create elements to `'http://www.w3.org/1998/MathML/'` in global state.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵnamespaceMathML() {\n    instructionState.lFrame.currentNamespace = MATH_ML_NAMESPACE;\n}\n/**\n * Sets the namespace used to create elements to `null`, which forces element creation to use\n * `createElement` rather than `createElementNS`.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵnamespaceHTML() {\n    namespaceHTMLInternal();\n}\n/**\n * Sets the namespace used to create elements to `null`, which forces element creation to use\n * `createElement` rather than `createElementNS`.\n * @return {?}\n */\nfunction namespaceHTMLInternal() {\n    instructionState.lFrame.currentNamespace = null;\n}\n/**\n * @return {?}\n */\nfunction getNamespace() {\n    return instructionState.lFrame.currentNamespace;\n}\n/**\n * @param {?} sanitizer\n * @return {?}\n */\nfunction setCurrentStyleSanitizer(sanitizer) {\n    instructionState.lFrame.currentSanitizer = sanitizer;\n}\n/**\n * @return {?}\n */\nfunction resetCurrentStyleSanitizer() {\n    setCurrentStyleSanitizer(null);\n}\n/**\n * @return {?}\n */\nfunction getCurrentStyleSanitizer() {\n    // TODO(misko): This should throw when there is no LView, but it turns out we can get here from\n    // `NodeStyleDebug` hence we return `null`. This should be fixed\n    /** @type {?} */\n    const lFrame = instructionState.lFrame;\n    return lFrame === null ? null : lFrame.currentSanitizer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/hooks.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Adds all directive lifecycle hooks from the given `DirectiveDef` to the given `TView`.\n *\n * Must be run *only* on the first template pass.\n *\n * Sets up the pre-order hooks on the provided `tView`,\n * see {\\@link HookData} for details about the data structure.\n *\n * @param {?} directiveIndex The index of the directive in LView\n * @param {?} directiveDef The definition containing the hooks to setup in tView\n * @param {?} tView The current TView\n * @return {?}\n */\nfunction registerPreOrderHooks(directiveIndex, directiveDef, tView) {\n    ngDevMode && assertFirstCreatePass(tView);\n    const { onChanges, onInit, doCheck } = directiveDef;\n    if (onChanges) {\n        (tView.preOrderHooks || (tView.preOrderHooks = [])).push(directiveIndex, onChanges);\n        (tView.preOrderCheckHooks || (tView.preOrderCheckHooks = [])).push(directiveIndex, onChanges);\n    }\n    if (onInit) {\n        (tView.preOrderHooks || (tView.preOrderHooks = [])).push(-directiveIndex, onInit);\n    }\n    if (doCheck) {\n        (tView.preOrderHooks || (tView.preOrderHooks = [])).push(directiveIndex, doCheck);\n        (tView.preOrderCheckHooks || (tView.preOrderCheckHooks = [])).push(directiveIndex, doCheck);\n    }\n}\n/**\n *\n * Loops through the directives on the provided `tNode` and queues hooks to be\n * run that are not initialization hooks.\n *\n * Should be executed during `elementEnd()` and similar to\n * preserve hook execution order. Content, view, and destroy hooks for projected\n * components and directives must be called *before* their hosts.\n *\n * Sets up the content, view, and destroy hooks on the provided `tView`,\n * see {\\@link HookData} for details about the data structure.\n *\n * NOTE: This does not set up `onChanges`, `onInit` or `doCheck`, those are set up\n * separately at `elementStart`.\n *\n * @param {?} tView The current TView\n * @param {?} tNode The TNode whose directives are to be searched for hooks to queue\n * @return {?}\n */\nfunction registerPostOrderHooks(tView, tNode) {\n    ngDevMode && assertFirstCreatePass(tView);\n    // It's necessary to loop through the directives at elementEnd() (rather than processing in\n    // directiveCreate) so we can preserve the current hook order. Content, view, and destroy\n    // hooks for projected components and directives must be called *before* their hosts.\n    for (let i = tNode.directiveStart, end = tNode.directiveEnd; i < end; i++) {\n        /** @type {?} */\n        const directiveDef = (/** @type {?} */ (tView.data[i]));\n        if (directiveDef.afterContentInit) {\n            (tView.contentHooks || (tView.contentHooks = [])).push(-i, directiveDef.afterContentInit);\n        }\n        if (directiveDef.afterContentChecked) {\n            (tView.contentHooks || (tView.contentHooks = [])).push(i, directiveDef.afterContentChecked);\n            (tView.contentCheckHooks || (tView.contentCheckHooks = []))\n                .push(i, directiveDef.afterContentChecked);\n        }\n        if (directiveDef.afterViewInit) {\n            (tView.viewHooks || (tView.viewHooks = [])).push(-i, directiveDef.afterViewInit);\n        }\n        if (directiveDef.afterViewChecked) {\n            (tView.viewHooks || (tView.viewHooks = [])).push(i, directiveDef.afterViewChecked);\n            (tView.viewCheckHooks || (tView.viewCheckHooks = [])).push(i, directiveDef.afterViewChecked);\n        }\n        if (directiveDef.onDestroy != null) {\n            (tView.destroyHooks || (tView.destroyHooks = [])).push(i, directiveDef.onDestroy);\n        }\n    }\n}\n/**\n * Executing hooks requires complex logic as we need to deal with 2 constraints.\n *\n * 1. Init hooks (ngOnInit, ngAfterContentInit, ngAfterViewInit) must all be executed once and only\n * once, across many change detection cycles. This must be true even if some hooks throw, or if\n * some recursively trigger a change detection cycle.\n * To solve that, it is required to track the state of the execution of these init hooks.\n * This is done by storing and maintaining flags in the view: the {@link InitPhaseState},\n * and the index within that phase. They can be seen as a cursor in the following structure:\n * [[onInit1, onInit2], [afterContentInit1], [afterViewInit1, afterViewInit2, afterViewInit3]]\n * They are are stored as flags in LView[FLAGS].\n *\n * 2. Pre-order hooks can be executed in batches, because of the select instruction.\n * To be able to pause and resume their execution, we also need some state about the hook's array\n * that is being processed:\n * - the index of the next hook to be executed\n * - the number of init hooks already found in the processed part of the  array\n * They are are stored as flags in LView[PREORDER_HOOK_FLAGS].\n */\n/**\n * Executes pre-order check hooks ( OnChanges, DoChanges) given a view where all the init hooks were\n * executed once. This is a light version of executeInitAndCheckPreOrderHooks where we can skip read\n * / write of the init-hooks related flags.\n * @param {?} lView The LView where hooks are defined\n * @param {?} hooks Hooks to be run\n * @param {?=} nodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n * @return {?}\n */\nfunction executeCheckHooks(lView, hooks, nodeIndex) {\n    callHooks(lView, hooks, 3 /* InitPhaseCompleted */, nodeIndex);\n}\n/**\n * Executes post-order init and check hooks (one of AfterContentInit, AfterContentChecked,\n * AfterViewInit, AfterViewChecked) given a view where there are pending init hooks to be executed.\n * @param {?} lView The LView where hooks are defined\n * @param {?} hooks Hooks to be run\n * @param {?} initPhase A phase for which hooks should be run\n * @param {?=} nodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n * @return {?}\n */\nfunction executeInitAndCheckHooks(lView, hooks, initPhase, nodeIndex) {\n    ngDevMode &&\n        assertNotEqual(initPhase, 3 /* InitPhaseCompleted */, 'Init pre-order hooks should not be called more than once');\n    if ((lView[FLAGS] & 3 /* InitPhaseStateMask */) === initPhase) {\n        callHooks(lView, hooks, initPhase, nodeIndex);\n    }\n}\n/**\n * @param {?} lView\n * @param {?} initPhase\n * @return {?}\n */\nfunction incrementInitPhaseFlags(lView, initPhase) {\n    ngDevMode &&\n        assertNotEqual(initPhase, 3 /* InitPhaseCompleted */, 'Init hooks phase should not be incremented after all init hooks have been run.');\n    /** @type {?} */\n    let flags = lView[FLAGS];\n    if ((flags & 3 /* InitPhaseStateMask */) === initPhase) {\n        flags &= 2047 /* IndexWithinInitPhaseReset */;\n        flags += 1 /* InitPhaseStateIncrementer */;\n        lView[FLAGS] = flags;\n    }\n}\n/**\n * Calls lifecycle hooks with their contexts, skipping init hooks if it's not\n * the first LView pass\n *\n * @param {?} currentView The current view\n * @param {?} arr The array in which the hooks are found\n * @param {?} initPhase\n * @param {?} currentNodeIndex 3 cases depending on the value:\n * - undefined: all hooks from the array should be executed (post-order case)\n * - null: execute hooks only from the saved index until the end of the array (pre-order case, when\n * flushing the remaining hooks)\n * - number: execute hooks only from the saved index until that node index exclusive (pre-order\n * case, when executing select(number))\n * @return {?}\n */\nfunction callHooks(currentView, arr, initPhase, currentNodeIndex) {\n    ngDevMode &&\n        assertEqual(getCheckNoChangesMode(), false, 'Hooks should never be run in the check no changes mode.');\n    /** @type {?} */\n    const startIndex = currentNodeIndex !== undefined ?\n        (currentView[PREORDER_HOOK_FLAGS] & 65535 /* IndexOfTheNextPreOrderHookMaskMask */) :\n        0;\n    /** @type {?} */\n    const nodeIndexLimit = currentNodeIndex != null ? currentNodeIndex : -1;\n    /** @type {?} */\n    let lastNodeIndexFound = 0;\n    for (let i = startIndex; i < arr.length; i++) {\n        /** @type {?} */\n        const hook = (/** @type {?} */ (arr[i + 1]));\n        if (typeof hook === 'number') {\n            lastNodeIndexFound = (/** @type {?} */ (arr[i]));\n            if (currentNodeIndex != null && lastNodeIndexFound >= currentNodeIndex) {\n                break;\n            }\n        }\n        else {\n            /** @type {?} */\n            const isInitHook = arr[i] < 0;\n            if (isInitHook)\n                currentView[PREORDER_HOOK_FLAGS] += 65536 /* NumberOfInitHooksCalledIncrementer */;\n            if (lastNodeIndexFound < nodeIndexLimit || nodeIndexLimit == -1) {\n                callHook(currentView, initPhase, arr, i);\n                currentView[PREORDER_HOOK_FLAGS] =\n                    (currentView[PREORDER_HOOK_FLAGS] & 4294901760 /* NumberOfInitHooksCalledMask */) + i +\n                        2;\n            }\n            i++;\n        }\n    }\n}\n/**\n * Execute one hook against the current `LView`.\n *\n * @param {?} currentView The current view\n * @param {?} initPhase\n * @param {?} arr The array in which the hooks are found\n * @param {?} i The current index within the hook data array\n * @return {?}\n */\nfunction callHook(currentView, initPhase, arr, i) {\n    /** @type {?} */\n    const isInitHook = arr[i] < 0;\n    /** @type {?} */\n    const hook = (/** @type {?} */ (arr[i + 1]));\n    /** @type {?} */\n    const directiveIndex = isInitHook ? -arr[i] : (/** @type {?} */ (arr[i]));\n    /** @type {?} */\n    const directive = currentView[directiveIndex];\n    if (isInitHook) {\n        /** @type {?} */\n        const indexWithintInitPhase = currentView[FLAGS] >> 11 /* IndexWithinInitPhaseShift */;\n        // The init phase state must be always checked here as it may have been recursively\n        // updated\n        if (indexWithintInitPhase <\n            (currentView[PREORDER_HOOK_FLAGS] >> 16 /* NumberOfInitHooksCalledShift */) &&\n            (currentView[FLAGS] & 3 /* InitPhaseStateMask */) === initPhase) {\n            currentView[FLAGS] += 2048 /* IndexWithinInitPhaseIncrementer */;\n            hook.call(directive);\n        }\n    }\n    else {\n        hook.call(directive);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/injector.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst TNODE = 8;\n/** @type {?} */\nconst PARENT_INJECTOR = 8;\n/** @type {?} */\nconst INJECTOR_BLOOM_PARENT_SIZE = 9;\n/**\n * Represents a relative location of parent injector.\n *\n * The interfaces encodes number of parents `LView`s to traverse and index in the `LView`\n * pointing to the parent injector.\n * @record\n */\nfunction RelativeInjectorLocation() { }\nif (false) {\n    /** @type {?} */\n    RelativeInjectorLocation.prototype.__brand__;\n}\n/** @enum {number} */\nconst RelativeInjectorLocationFlags = {\n    InjectorIndexMask: 32767,\n    ViewOffsetShift: 16,\n    NO_PARENT: -1,\n};\n/** @type {?} */\nconst NO_PARENT_INJECTOR = (/** @type {?} */ (-1));\n/**\n * Each injector is saved in 9 contiguous slots in `LView` and 9 contiguous slots in\n * `TView.data`. This allows us to store information about the current node's tokens (which\n * can be shared in `TView`) as well as the tokens of its ancestor nodes (which cannot be\n * shared, so they live in `LView`).\n *\n * Each of these slots (aside from the last slot) contains a bloom filter. This bloom filter\n * determines whether a directive is available on the associated node or not. This prevents us\n * from searching the directives array at this level unless it's probable the directive is in it.\n *\n * See: https://en.wikipedia.org/wiki/Bloom_filter for more about bloom filters.\n *\n * Because all injectors have been flattened into `LView` and `TViewData`, they cannot typed\n * using interfaces as they were previously. The start index of each `LInjector` and `TInjector`\n * will differ based on where it is flattened into the main array, so it's not possible to know\n * the indices ahead of time and save their types here. The interfaces are still included here\n * for documentation purposes.\n *\n * export interface LInjector extends Array<any> {\n *\n *    // Cumulative bloom for directive IDs 0-31  (IDs are % BLOOM_SIZE)\n *    [0]: number;\n *\n *    // Cumulative bloom for directive IDs 32-63\n *    [1]: number;\n *\n *    // Cumulative bloom for directive IDs 64-95\n *    [2]: number;\n *\n *    // Cumulative bloom for directive IDs 96-127\n *    [3]: number;\n *\n *    // Cumulative bloom for directive IDs 128-159\n *    [4]: number;\n *\n *    // Cumulative bloom for directive IDs 160 - 191\n *    [5]: number;\n *\n *    // Cumulative bloom for directive IDs 192 - 223\n *    [6]: number;\n *\n *    // Cumulative bloom for directive IDs 224 - 255\n *    [7]: number;\n *\n *    // We need to store a reference to the injector's parent so DI can keep looking up\n *    // the injector tree until it finds the dependency it's looking for.\n *    [PARENT_INJECTOR]: number;\n * }\n *\n * export interface TInjector extends Array<any> {\n *\n *    // Shared node bloom for directive IDs 0-31  (IDs are % BLOOM_SIZE)\n *    [0]: number;\n *\n *    // Shared node bloom for directive IDs 32-63\n *    [1]: number;\n *\n *    // Shared node bloom for directive IDs 64-95\n *    [2]: number;\n *\n *    // Shared node bloom for directive IDs 96-127\n *    [3]: number;\n *\n *    // Shared node bloom for directive IDs 128-159\n *    [4]: number;\n *\n *    // Shared node bloom for directive IDs 160 - 191\n *    [5]: number;\n *\n *    // Shared node bloom for directive IDs 192 - 223\n *    [6]: number;\n *\n *    // Shared node bloom for directive IDs 224 - 255\n *    [7]: number;\n *\n *    // Necessary to find directive indices for a particular node.\n *    [TNODE]: TElementNode|TElementContainerNode|TContainerNode;\n *  }\n */\n/**\n * Factory for creating instances of injectors in the NodeInjector.\n *\n * This factory is complicated by the fact that it can resolve `multi` factories as well.\n *\n * NOTE: Some of the fields are optional which means that this class has two hidden classes.\n * - One without `multi` support (most common)\n * - One with `multi` values, (rare).\n *\n * Since VMs can cache up to 4 inline hidden classes this is OK.\n *\n * - Single factory: Only `resolving` and `factory` is defined.\n * - `providers` factory: `componentProviders` is a number and `index = -1`.\n * - `viewProviders` factory: `componentProviders` is a number and `index` points to `providers`.\n */\nclass NodeInjectorFactory {\n    /**\n     * @param {?} factory\n     * @param {?} isViewProvider\n     * @param {?} injectImplementation\n     */\n    constructor(factory, \n    /**\n     * Set to `true` if the token is declared in `viewProviders` (or if it is component).\n     */\n    isViewProvider, injectImplementation) {\n        this.factory = factory;\n        /**\n         * Marker set to true during factory invocation to see if we get into recursive loop.\n         * Recursive loop causes an error to be displayed.\n         */\n        this.resolving = false;\n        this.canSeeViewProviders = isViewProvider;\n        this.injectImpl = injectImplementation;\n    }\n}\nif (false) {\n    /**\n     * The inject implementation to be activated when using the factory.\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.injectImpl;\n    /**\n     * Marker set to true during factory invocation to see if we get into recursive loop.\n     * Recursive loop causes an error to be displayed.\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.resolving;\n    /**\n     * Marks that the token can see other Tokens declared in `viewProviders` on the same node.\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.canSeeViewProviders;\n    /**\n     * An array of factories to use in case of `multi` provider.\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.multi;\n    /**\n     * Number of `multi`-providers which belong to the component.\n     *\n     * This is needed because when multiple components and directives declare the `multi` provider\n     * they have to be concatenated in the correct order.\n     *\n     * Example:\n     *\n     * If we have a component and directive active an a single element as declared here\n     * ```\n     * component:\n     *   provides: [ {provide: String, useValue: 'component', multi: true} ],\n     *   viewProvides: [ {provide: String, useValue: 'componentView', multi: true} ],\n     *\n     * directive:\n     *   provides: [ {provide: String, useValue: 'directive', multi: true} ],\n     * ```\n     *\n     * Then the expected results are:\n     *\n     * ```\n     * providers: ['component', 'directive']\n     * viewProviders: ['component', 'componentView', 'directive']\n     * ```\n     *\n     * The way to think about it is that the `viewProviders` have been inserted after the component\n     * but before the directives, which is why we need to know how many `multi`s have been declared by\n     * the component.\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.componentProviders;\n    /**\n     * Current index of the Factory in the `data`. Needed for `viewProviders` and `providers` merging.\n     * See `providerFactory`.\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.index;\n    /**\n     * Because the same `multi` provider can be declared in `provides` and `viewProvides` it is\n     * possible for `viewProvides` to shadow the `provides`. For this reason we store the\n     * `provideFactory` of the `providers` so that `providers` can be extended with `viewProviders`.\n     *\n     * Example:\n     *\n     * Given:\n     * ```\n     * provides: [ {provide: String, useValue: 'all', multi: true} ],\n     * viewProvides: [ {provide: String, useValue: 'viewOnly', multi: true} ],\n     * ```\n     *\n     * We have to return `['all']` in case of content injection, but `['all', 'viewOnly']` in case\n     * of view injection. We further have to make sure that the shared instances (in our case\n     * `all`) are the exact same instance in both the content as well as the view injection. (We\n     * have to make sure that we don't double instantiate.) For this reason the `viewProvides`\n     * `Factory` has a pointer to the shadowed `provides` factory so that it can instantiate the\n     * `providers` (`['all']`) and then extend it with `viewProviders` (`['all'] + ['viewOnly'] =\n     * ['all', 'viewOnly']`).\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.providerFactory;\n    /**\n     * Factory to invoke in order to create a new instance.\n     * @type {?}\n     */\n    NodeInjectorFactory.prototype.factory;\n}\n/**\n * @param {?} obj\n * @return {?}\n */\nfunction isFactory(obj) {\n    return obj instanceof NodeInjectorFactory;\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$3 = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/node_assert.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} tNode\n * @param {?} type\n * @return {?}\n */\nfunction assertNodeType(tNode, type) {\n    assertDefined(tNode, 'should be called with a TNode');\n    assertEqual(tNode.type, type, `should be a ${typeName(type)}`);\n}\n/**\n * @param {?} tNode\n * @param {...?} types\n * @return {?}\n */\nfunction assertNodeOfPossibleTypes(tNode, ...types) {\n    assertDefined(tNode, 'should be called with a TNode');\n    /** @type {?} */\n    const found = types.some((/**\n     * @param {?} type\n     * @return {?}\n     */\n    type => tNode.type === type));\n    assertEqual(found, true, `Should be one of ${types.map(typeName).join(', ')} but got ${typeName(tNode.type)}`);\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction typeName(type) {\n    if (type == 1 /* Projection */)\n        return 'Projection';\n    if (type == 0 /* Container */)\n        return 'Container';\n    if (type == 5 /* IcuContainer */)\n        return 'IcuContainer';\n    if (type == 2 /* View */)\n        return 'View';\n    if (type == 3 /* Element */)\n        return 'Element';\n    if (type == 4 /* ElementContainer */)\n        return 'ElementContainer';\n    return '<unknown>';\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/attrs_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Assigns all attribute values to the provided element via the inferred renderer.\n *\n * This function accepts two forms of attribute entries:\n *\n * default: (key, value):\n *  attrs = [key1, value1, key2, value2]\n *\n * namespaced: (NAMESPACE_MARKER, uri, name, value)\n *  attrs = [NAMESPACE_MARKER, uri, name, value, NAMESPACE_MARKER, uri, name, value]\n *\n * The `attrs` array can contain a mix of both the default and namespaced entries.\n * The \"default\" values are set without a marker, but if the function comes across\n * a marker value then it will attempt to set a namespaced value. If the marker is\n * not of a namespaced value then the function will quit and return the index value\n * where it stopped during the iteration of the attrs array.\n *\n * See [AttributeMarker] to understand what the namespace marker value is.\n *\n * Note that this instruction does not support assigning style and class values to\n * an element. See `elementStart` and `elementHostAttrs` to learn how styling values\n * are applied to an element.\n * @param {?} renderer The renderer to be used\n * @param {?} native The element that the attributes will be assigned to\n * @param {?} attrs The attribute array of values that will be assigned to the element\n * @return {?} the index value that was last accessed in the attributes array\n */\nfunction setUpAttributes(renderer, native, attrs) {\n    /** @type {?} */\n    const isProc = isProceduralRenderer(renderer);\n    /** @type {?} */\n    let i = 0;\n    while (i < attrs.length) {\n        /** @type {?} */\n        const value = attrs[i];\n        if (typeof value === 'number') {\n            // only namespaces are supported. Other value types (such as style/class\n            // entries) are not supported in this function.\n            if (value !== 0 /* NamespaceURI */) {\n                break;\n            }\n            // we just landed on the marker value ... therefore\n            // we should skip to the next entry\n            i++;\n            /** @type {?} */\n            const namespaceURI = (/** @type {?} */ (attrs[i++]));\n            /** @type {?} */\n            const attrName = (/** @type {?} */ (attrs[i++]));\n            /** @type {?} */\n            const attrVal = (/** @type {?} */ (attrs[i++]));\n            ngDevMode && ngDevMode.rendererSetAttribute++;\n            isProc ?\n                ((/** @type {?} */ (renderer))).setAttribute(native, attrName, attrVal, namespaceURI) :\n                native.setAttributeNS(namespaceURI, attrName, attrVal);\n        }\n        else {\n            // attrName is string;\n            /** @type {?} */\n            const attrName = (/** @type {?} */ (value));\n            /** @type {?} */\n            const attrVal = attrs[++i];\n            // Standard attributes\n            ngDevMode && ngDevMode.rendererSetAttribute++;\n            if (isAnimationProp(attrName)) {\n                if (isProc) {\n                    ((/** @type {?} */ (renderer))).setProperty(native, attrName, attrVal);\n                }\n            }\n            else {\n                isProc ?\n                    ((/** @type {?} */ (renderer))).setAttribute(native, attrName, (/** @type {?} */ (attrVal))) :\n                    native.setAttribute(attrName, (/** @type {?} */ (attrVal)));\n            }\n            i++;\n        }\n    }\n    // another piece of code may iterate over the same attributes array. Therefore\n    // it may be helpful to return the exact spot where the attributes array exited\n    // whether by running into an unsupported marker or if all the static values were\n    // iterated over.\n    return i;\n}\n/**\n * Test whether the given value is a marker that indicates that the following\n * attribute values in a `TAttributes` array are only the names of attributes,\n * and not name-value pairs.\n * @param {?} marker The attribute marker to test.\n * @return {?} true if the marker is a \"name-only\" marker (e.g. `Bindings`, `Template` or `I18n`).\n */\nfunction isNameOnlyAttributeMarker(marker) {\n    return marker === 3 /* Bindings */ || marker === 4 /* Template */ ||\n        marker === 6 /* I18n */;\n}\n/**\n * @param {?} name\n * @return {?}\n */\nfunction isAnimationProp(name) {\n    // Perf note: accessing charCodeAt to check for the first character of a string is faster as\n    // compared to accessing a character at index 0 (ex. name[0]). The main reason for this is that\n    // charCodeAt doesn't allocate memory to return a substring.\n    return name.charCodeAt(0) === 64 /* AT_SIGN */;\n}\n/**\n * Merges `src` `TAttributes` into `dst` `TAttributes` removing any duplicates in the process.\n *\n * This merge function keeps the order of attrs same.\n *\n * @param {?} dst Location of where the merged `TAttributes` should end up.\n * @param {?} src `TAttributes` which should be appended to `dst`\n * @return {?}\n */\nfunction mergeHostAttrs(dst, src) {\n    if (src === null || src.length === 0) {\n        // do nothing\n    }\n    else if (dst === null || dst.length === 0) {\n        // We have source, but dst is empty, just make a copy.\n        dst = src.slice();\n    }\n    else {\n        /** @type {?} */\n        let srcMarker = -1 /* ImplicitAttributes */;\n        for (let i = 0; i < src.length; i++) {\n            /** @type {?} */\n            const item = src[i];\n            if (typeof item === 'number') {\n                srcMarker = item;\n            }\n            else {\n                if (srcMarker === 0 /* NamespaceURI */) {\n                    // Case where we need to consume `key1`, `key2`, `value` items.\n                }\n                else if (srcMarker === -1 /* ImplicitAttributes */ ||\n                    srcMarker === 2 /* Styles */) {\n                    // Case where we have to consume `key1` and `value` only.\n                    mergeHostAttribute(dst, srcMarker, (/** @type {?} */ (item)), null, (/** @type {?} */ (src[++i])));\n                }\n                else {\n                    // Case where we have to consume `key1` only.\n                    mergeHostAttribute(dst, srcMarker, (/** @type {?} */ (item)), null, null);\n                }\n            }\n        }\n    }\n    return dst;\n}\n/**\n * Append `key`/`value` to existing `TAttributes` taking region marker and duplicates into account.\n *\n * @param {?} dst `TAttributes` to append to.\n * @param {?} marker Region where the `key`/`value` should be added.\n * @param {?} key1 Key to add to `TAttributes`\n * @param {?} key2 Key to add to `TAttributes` (in case of `AttributeMarker.NamespaceURI`)\n * @param {?} value Value to add or to overwrite to `TAttributes` Only used if `marker` is not Class.\n * @return {?}\n */\nfunction mergeHostAttribute(dst, marker, key1, key2, value) {\n    /** @type {?} */\n    let i = 0;\n    // Assume that new markers will be inserted at the end.\n    /** @type {?} */\n    let markerInsertPosition = dst.length;\n    // scan until correct type.\n    if (marker === -1 /* ImplicitAttributes */) {\n        markerInsertPosition = -1;\n    }\n    else {\n        while (i < dst.length) {\n            /** @type {?} */\n            const dstValue = dst[i++];\n            if (typeof dstValue === 'number') {\n                if (dstValue === marker) {\n                    markerInsertPosition = -1;\n                    break;\n                }\n                else if (dstValue > marker) {\n                    // We need to save this as we want the markers to be inserted in specific order.\n                    markerInsertPosition = i - 1;\n                    break;\n                }\n            }\n        }\n    }\n    // search until you find place of insertion\n    while (i < dst.length) {\n        /** @type {?} */\n        const item = dst[i];\n        if (typeof item === 'number') {\n            // since `i` started as the index after the marker, we did not find it if we are at the next\n            // marker\n            break;\n        }\n        else if (item === key1) {\n            // We already have same token\n            if (key2 === null) {\n                if (value !== null) {\n                    dst[i + 1] = value;\n                }\n                return;\n            }\n            else if (key2 === dst[i + 1]) {\n                dst[i + 2] = (/** @type {?} */ (value));\n                return;\n            }\n        }\n        // Increment counter.\n        i++;\n        if (key2 !== null)\n            i++;\n        if (value !== null)\n            i++;\n    }\n    // insert at location.\n    if (markerInsertPosition !== -1) {\n        dst.splice(markerInsertPosition, 0, marker);\n        i = markerInsertPosition + 1;\n    }\n    dst.splice(i++, 0, key1);\n    if (key2 !== null) {\n        dst.splice(i++, 0, key2);\n    }\n    if (value !== null) {\n        dst.splice(i++, 0, value);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/injector_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/// Parent Injector Utils ///////////////////////////////////////////////////////////////\n/**\n * @param {?} parentLocation\n * @return {?}\n */\nfunction hasParentInjector(parentLocation) {\n    return parentLocation !== NO_PARENT_INJECTOR;\n}\n/**\n * @param {?} parentLocation\n * @return {?}\n */\nfunction getParentInjectorIndex(parentLocation) {\n    return ((/** @type {?} */ ((/** @type {?} */ (parentLocation))))) & 32767 /* InjectorIndexMask */;\n}\n/**\n * @param {?} parentLocation\n * @return {?}\n */\nfunction getParentInjectorViewOffset(parentLocation) {\n    return ((/** @type {?} */ ((/** @type {?} */ (parentLocation))))) >> 16 /* ViewOffsetShift */;\n}\n/**\n * Unwraps a parent injector location number to find the view offset from the current injector,\n * then walks up the declaration view tree until the view is found that contains the parent\n * injector.\n *\n * @param {?} location The location of the parent injector, which contains the view offset\n * @param {?} startView The LView instance from which to start walking up the view tree\n * @return {?} The LView instance that contains the parent injector\n */\nfunction getParentInjectorView(location, startView) {\n    /** @type {?} */\n    let viewOffset = getParentInjectorViewOffset(location);\n    /** @type {?} */\n    let parentView = startView;\n    // For most cases, the parent injector can be found on the host node (e.g. for component\n    // or container), but we must keep the loop here to support the rarer case of deeply nested\n    // <ng-template> tags or inline views, where the parent injector might live many views\n    // above the child injector.\n    while (viewOffset > 0) {\n        parentView = (/** @type {?} */ (parentView[DECLARATION_VIEW]));\n        viewOffset--;\n    }\n    return parentView;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/misc_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Used for stringify render output in Ivy.\n * Important! This function is very performance-sensitive and we should\n * be extra careful not to introduce megamorphic reads in it.\n * @param {?} value\n * @return {?}\n */\nfunction renderStringify(value) {\n    if (typeof value === 'string')\n        return value;\n    if (value == null)\n        return '';\n    return '' + value;\n}\n/**\n * Used to stringify a value so that it can be displayed in an error message.\n * Important! This function contains a megamorphic read and should only be\n * used for error messages.\n * @param {?} value\n * @return {?}\n */\nfunction stringifyForError(value) {\n    if (typeof value === 'function')\n        return value.name || value.toString();\n    if (typeof value === 'object' && value != null && typeof value.type === 'function') {\n        return value.type.name || value.type.toString();\n    }\n    return renderStringify(value);\n}\nconst ɵ0$3 = /**\n * @return {?}\n */\n() => (typeof requestAnimationFrame !== 'undefined' &&\n    requestAnimationFrame || // browser only\n    setTimeout // everything else\n)\n    .bind(_global);\n/** @type {?} */\nconst defaultScheduler = ((ɵ0$3))();\n/**\n *\n * \\@codeGenApi\n * @param {?} element\n * @return {?}\n */\nfunction ɵɵresolveWindow(element) {\n    return { name: 'window', target: element.ownerDocument.defaultView };\n}\n/**\n *\n * \\@codeGenApi\n * @param {?} element\n * @return {?}\n */\nfunction ɵɵresolveDocument(element) {\n    return { name: 'document', target: element.ownerDocument };\n}\n/**\n *\n * \\@codeGenApi\n * @param {?} element\n * @return {?}\n */\nfunction ɵɵresolveBody(element) {\n    return { name: 'body', target: element.ownerDocument.body };\n}\n/**\n * The special delimiter we use to separate property names, prefixes, and suffixes\n * in property binding metadata. See storeBindingMetadata().\n *\n * We intentionally use the Unicode \"REPLACEMENT CHARACTER\" (U+FFFD) as a delimiter\n * because it is a very uncommon character that is unlikely to be part of a user's\n * property names or interpolation strings. If it is in fact used in a property\n * binding, DebugElement.properties will not return the correct value for that\n * binding. However, there should be no runtime effect for real applications.\n *\n * This character is typically rendered as a question mark inside of a diamond.\n * See https://en.wikipedia.org/wiki/Specials_(Unicode_block)\n *\n * @type {?}\n */\nconst INTERPOLATION_DELIMITER = `�`;\n/**\n * Unwrap a value which might be behind a closure (for forward declaration reasons).\n * @template T\n * @param {?} value\n * @return {?}\n */\nfunction maybeUnwrapFn(value) {\n    if (value instanceof Function) {\n        return value();\n    }\n    else {\n        return value;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/di.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Defines if the call to `inject` should include `viewProviders` in its resolution.\n *\n * This is set to true when we try to instantiate a component. This value is reset in\n * `getNodeInjectable` to a value which matches the declaration location of the token about to be\n * instantiated. This is done so that if we are injecting a token which was declared outside of\n * `viewProviders` we don't accidentally pull `viewProviders` in.\n *\n * Example:\n *\n * ```\n * \\@Injectable()\n * class MyService {\n *   constructor(public value: String) {}\n * }\n *\n * \\@Component({\n *   providers: [\n *     MyService,\n *     {provide: String, value: 'providers' }\n *   ]\n *   viewProviders: [\n *     {provide: String, value: 'viewProviders'}\n *   ]\n * })\n * class MyComponent {\n *   constructor(myService: MyService, value: String) {\n *     // We expect that Component can see into `viewProviders`.\n *     expect(value).toEqual('viewProviders');\n *     // `MyService` was not declared in `viewProviders` hence it can't see it.\n *     expect(myService.value).toEqual('providers');\n *   }\n * }\n *\n * ```\n * @type {?}\n */\nlet includeViewProviders = true;\n/**\n * @param {?} v\n * @return {?}\n */\nfunction setIncludeViewProviders(v) {\n    /** @type {?} */\n    const oldValue = includeViewProviders;\n    includeViewProviders = v;\n    return oldValue;\n}\n/**\n * The number of slots in each bloom filter (used by DI). The larger this number, the fewer\n * directives that will share slots, and thus, the fewer false positives when checking for\n * the existence of a directive.\n * @type {?}\n */\nconst BLOOM_SIZE = 256;\n/** @type {?} */\nconst BLOOM_MASK = BLOOM_SIZE - 1;\n/**\n * Counter used to generate unique IDs for directives.\n * @type {?}\n */\nlet nextNgElementId = 0;\n/**\n * Registers this directive as present in its node's injector by flipping the directive's\n * corresponding bit in the injector's bloom filter.\n *\n * @param {?} injectorIndex The index of the node injector where this token should be registered\n * @param {?} tView The TView for the injector's bloom filters\n * @param {?} type The directive token to register\n * @return {?}\n */\nfunction bloomAdd(injectorIndex, tView, type) {\n    ngDevMode && assertEqual(tView.firstCreatePass, true, 'expected firstCreatePass to be true');\n    /** @type {?} */\n    let id = typeof type !== 'string' ? ((/** @type {?} */ (type)))[NG_ELEMENT_ID] : type.charCodeAt(0) || 0;\n    // Set a unique ID on the directive type, so if something tries to inject the directive,\n    // we can easily retrieve the ID and hash it into the bloom bit that should be checked.\n    if (id == null) {\n        id = ((/** @type {?} */ (type)))[NG_ELEMENT_ID] = nextNgElementId++;\n    }\n    // We only have BLOOM_SIZE (256) slots in our bloom filter (8 buckets * 32 bits each),\n    // so all unique IDs must be modulo-ed into a number from 0 - 255 to fit into the filter.\n    /** @type {?} */\n    const bloomBit = id & BLOOM_MASK;\n    // Create a mask that targets the specific bit associated with the directive.\n    // JS bit operations are 32 bits, so this will be a number between 2^0 and 2^31, corresponding\n    // to bit positions 0 - 31 in a 32 bit integer.\n    /** @type {?} */\n    const mask = 1 << bloomBit;\n    // Use the raw bloomBit number to determine which bloom filter bucket we should check\n    // e.g: bf0 = [0 - 31], bf1 = [32 - 63], bf2 = [64 - 95], bf3 = [96 - 127], etc\n    /** @type {?} */\n    const b7 = bloomBit & 0x80;\n    /** @type {?} */\n    const b6 = bloomBit & 0x40;\n    /** @type {?} */\n    const b5 = bloomBit & 0x20;\n    /** @type {?} */\n    const tData = (/** @type {?} */ (tView.data));\n    if (b7) {\n        b6 ? (b5 ? (tData[injectorIndex + 7] |= mask) : (tData[injectorIndex + 6] |= mask)) :\n            (b5 ? (tData[injectorIndex + 5] |= mask) : (tData[injectorIndex + 4] |= mask));\n    }\n    else {\n        b6 ? (b5 ? (tData[injectorIndex + 3] |= mask) : (tData[injectorIndex + 2] |= mask)) :\n            (b5 ? (tData[injectorIndex + 1] |= mask) : (tData[injectorIndex] |= mask));\n    }\n}\n/**\n * Creates (or gets an existing) injector for a given element or container.\n *\n * @param {?} tNode for which an injector should be retrieved / created.\n * @param {?} hostView View where the node is stored\n * @return {?} Node injector\n */\nfunction getOrCreateNodeInjectorForNode(tNode, hostView) {\n    /** @type {?} */\n    const existingInjectorIndex = getInjectorIndex(tNode, hostView);\n    if (existingInjectorIndex !== -1) {\n        return existingInjectorIndex;\n    }\n    /** @type {?} */\n    const tView = hostView[TVIEW];\n    if (tView.firstCreatePass) {\n        tNode.injectorIndex = hostView.length;\n        insertBloom(tView.data, tNode); // foundation for node bloom\n        insertBloom(hostView, null); // foundation for cumulative bloom\n        insertBloom(tView.blueprint, null);\n    }\n    /** @type {?} */\n    const parentLoc = getParentInjectorLocation(tNode, hostView);\n    /** @type {?} */\n    const injectorIndex = tNode.injectorIndex;\n    // If a parent injector can't be found, its location is set to -1.\n    // In that case, we don't need to set up a cumulative bloom\n    if (hasParentInjector(parentLoc)) {\n        /** @type {?} */\n        const parentIndex = getParentInjectorIndex(parentLoc);\n        /** @type {?} */\n        const parentLView = getParentInjectorView(parentLoc, hostView);\n        /** @type {?} */\n        const parentData = (/** @type {?} */ (parentLView[TVIEW].data));\n        // Creates a cumulative bloom filter that merges the parent's bloom filter\n        // and its own cumulative bloom (which contains tokens for all ancestors)\n        for (let i = 0; i < 8; i++) {\n            hostView[injectorIndex + i] = parentLView[parentIndex + i] | parentData[parentIndex + i];\n        }\n    }\n    hostView[injectorIndex + PARENT_INJECTOR] = parentLoc;\n    return injectorIndex;\n}\n/**\n * @param {?} arr\n * @param {?} footer\n * @return {?}\n */\nfunction insertBloom(arr, footer) {\n    arr.push(0, 0, 0, 0, 0, 0, 0, 0, footer);\n}\n/**\n * @param {?} tNode\n * @param {?} hostView\n * @return {?}\n */\nfunction getInjectorIndex(tNode, hostView) {\n    if (tNode.injectorIndex === -1 ||\n        // If the injector index is the same as its parent's injector index, then the index has been\n        // copied down from the parent node. No injector has been created yet on this node.\n        (tNode.parent && tNode.parent.injectorIndex === tNode.injectorIndex) ||\n        // After the first template pass, the injector index might exist but the parent values\n        // might not have been calculated yet for this instance\n        hostView[tNode.injectorIndex + PARENT_INJECTOR] == null) {\n        return -1;\n    }\n    else {\n        return tNode.injectorIndex;\n    }\n}\n/**\n * Finds the index of the parent injector, with a view offset if applicable. Used to set the\n * parent injector initially.\n *\n * Returns a combination of number of `ViewData` we have to go up and index in that `Viewdata`\n * @param {?} tNode\n * @param {?} view\n * @return {?}\n */\nfunction getParentInjectorLocation(tNode, view) {\n    if (tNode.parent && tNode.parent.injectorIndex !== -1) {\n        return (/** @type {?} */ (tNode.parent.injectorIndex)); // ViewOffset is 0\n    }\n    // For most cases, the parent injector index can be found on the host node (e.g. for component\n    // or container), so this loop will be skipped, but we must keep the loop here to support\n    // the rarer case of deeply nested <ng-template> tags or inline views.\n    /** @type {?} */\n    let hostTNode = view[T_HOST];\n    /** @type {?} */\n    let viewOffset = 1;\n    while (hostTNode && hostTNode.injectorIndex === -1) {\n        view = (/** @type {?} */ (view[DECLARATION_VIEW]));\n        hostTNode = view ? view[T_HOST] : null;\n        viewOffset++;\n    }\n    return hostTNode ?\n        hostTNode.injectorIndex | (viewOffset << 16 /* ViewOffsetShift */) :\n        (/** @type {?} */ (-1));\n}\n/**\n * Makes a type or an injection token public to the DI system by adding it to an\n * injector's bloom filter.\n *\n * @param {?} injectorIndex\n * @param {?} tView\n * @param {?} token The type or the injection token to be made public\n * @return {?}\n */\nfunction diPublicInInjector(injectorIndex, tView, token) {\n    bloomAdd(injectorIndex, tView, token);\n}\n/**\n * Inject static attribute value into directive constructor.\n *\n * This method is used with `factory` functions which are generated as part of\n * `defineDirective` or `defineComponent`. The method retrieves the static value\n * of an attribute. (Dynamic attributes are not supported since they are not resolved\n *  at the time of injection and can change over time.)\n *\n * # Example\n * Given:\n * ```\n * \\@Component(...)\n * class MyComponent {\n *   constructor(\\@Attribute('title') title: string) { ... }\n * }\n * ```\n * When instantiated with\n * ```\n * <my-component title=\"Hello\"></my-component>\n * ```\n *\n * Then factory method generated is:\n * ```\n * MyComponent.ɵcmp = defineComponent({\n *   factory: () => new MyComponent(injectAttribute('title'))\n *   ...\n * })\n * ```\n *\n * \\@publicApi\n * @param {?} tNode\n * @param {?} attrNameToInject\n * @return {?}\n */\nfunction injectAttributeImpl(tNode, attrNameToInject) {\n    ngDevMode &&\n        assertNodeOfPossibleTypes(tNode, 0 /* Container */, 3 /* Element */, 4 /* ElementContainer */);\n    ngDevMode && assertDefined(tNode, 'expecting tNode');\n    if (attrNameToInject === 'class') {\n        return tNode.classes;\n    }\n    if (attrNameToInject === 'style') {\n        return tNode.styles;\n    }\n    /** @type {?} */\n    const attrs = tNode.attrs;\n    if (attrs) {\n        /** @type {?} */\n        const attrsLength = attrs.length;\n        /** @type {?} */\n        let i = 0;\n        while (i < attrsLength) {\n            /** @type {?} */\n            const value = attrs[i];\n            // If we hit a `Bindings` or `Template` marker then we are done.\n            if (isNameOnlyAttributeMarker(value))\n                break;\n            // Skip namespaced attributes\n            if (value === 0 /* NamespaceURI */) {\n                // we skip the next two values\n                // as namespaced attributes looks like\n                // [..., AttributeMarker.NamespaceURI, 'http://someuri.com/test', 'test:exist',\n                // 'existValue', ...]\n                i = i + 2;\n            }\n            else if (typeof value === 'number') {\n                // Skip to the first value of the marked attribute.\n                i++;\n                while (i < attrsLength && typeof attrs[i] === 'string') {\n                    i++;\n                }\n            }\n            else if (value === attrNameToInject) {\n                return (/** @type {?} */ (attrs[i + 1]));\n            }\n            else {\n                i = i + 2;\n            }\n        }\n    }\n    return null;\n}\n/**\n * Returns the value associated to the given token from the NodeInjectors => ModuleInjector.\n *\n * Look for the injector providing the token by walking up the node injector tree and then\n * the module injector tree.\n *\n * This function patches `token` with `__NG_ELEMENT_ID__` which contains the id for the bloom\n * filter. Negative values are reserved for special objects.\n *   - `-1` is reserved for injecting `Injector` (implemented by `NodeInjector`)\n *\n * @template T\n * @param {?} tNode The Node where the search for the injector should start\n * @param {?} lView The `LView` that contains the `tNode`\n * @param {?} token The token to look for\n * @param {?=} flags Injection flags\n * @param {?=} notFoundValue The value to return when the injection flags is `InjectFlags.Optional`\n * @return {?} the value from the injector, `null` when not found, or `notFoundValue` if provided\n */\nfunction getOrCreateInjectable(tNode, lView, token, flags = InjectFlags.Default, notFoundValue) {\n    if (tNode !== null) {\n        /** @type {?} */\n        const bloomHash = bloomHashBitOrFactory(token);\n        // If the ID stored here is a function, this is a special object like ElementRef or TemplateRef\n        // so just call the factory function to create it.\n        if (typeof bloomHash === 'function') {\n            enterDI(lView, tNode);\n            try {\n                /** @type {?} */\n                const value = bloomHash();\n                if (value == null && !(flags & InjectFlags.Optional)) {\n                    throw new Error(`No provider for ${stringifyForError(token)}!`);\n                }\n                else {\n                    return value;\n                }\n            }\n            finally {\n                leaveDI();\n            }\n        }\n        else if (typeof bloomHash == 'number') {\n            if (bloomHash === -1) {\n                // `-1` is a special value used to identify `Injector` types.\n                return (/** @type {?} */ (new NodeInjector(tNode, lView)));\n            }\n            // If the token has a bloom hash, then it is a token which could be in NodeInjector.\n            // A reference to the previous injector TView that was found while climbing the element\n            // injector tree. This is used to know if viewProviders can be accessed on the current\n            // injector.\n            /** @type {?} */\n            let previousTView = null;\n            /** @type {?} */\n            let injectorIndex = getInjectorIndex(tNode, lView);\n            /** @type {?} */\n            let parentLocation = NO_PARENT_INJECTOR;\n            /** @type {?} */\n            let hostTElementNode = flags & InjectFlags.Host ? lView[DECLARATION_COMPONENT_VIEW][T_HOST] : null;\n            // If we should skip this injector, or if there is no injector on this node, start by\n            // searching\n            // the parent injector.\n            if (injectorIndex === -1 || flags & InjectFlags.SkipSelf) {\n                parentLocation = injectorIndex === -1 ? getParentInjectorLocation(tNode, lView) :\n                    lView[injectorIndex + PARENT_INJECTOR];\n                if (!shouldSearchParent(flags, false)) {\n                    injectorIndex = -1;\n                }\n                else {\n                    previousTView = lView[TVIEW];\n                    injectorIndex = getParentInjectorIndex(parentLocation);\n                    lView = getParentInjectorView(parentLocation, lView);\n                }\n            }\n            // Traverse up the injector tree until we find a potential match or until we know there\n            // *isn't* a match.\n            while (injectorIndex !== -1) {\n                parentLocation = lView[injectorIndex + PARENT_INJECTOR];\n                // Check the current injector. If it matches, see if it contains token.\n                /** @type {?} */\n                const tView = lView[TVIEW];\n                if (bloomHasToken(bloomHash, injectorIndex, tView.data)) {\n                    // At this point, we have an injector which *may* contain the token, so we step through\n                    // the providers and directives associated with the injector's corresponding node to get\n                    // the instance.\n                    /** @type {?} */\n                    const instance = searchTokensOnInjector(injectorIndex, lView, token, previousTView, flags, hostTElementNode);\n                    if (instance !== NOT_FOUND) {\n                        return instance;\n                    }\n                }\n                if (shouldSearchParent(flags, lView[TVIEW].data[injectorIndex + TNODE] === hostTElementNode) &&\n                    bloomHasToken(bloomHash, injectorIndex, lView)) {\n                    // The def wasn't found anywhere on this node, so it was a false positive.\n                    // Traverse up the tree and continue searching.\n                    previousTView = tView;\n                    injectorIndex = getParentInjectorIndex(parentLocation);\n                    lView = getParentInjectorView(parentLocation, lView);\n                }\n                else {\n                    // If we should not search parent OR If the ancestor bloom filter value does not have the\n                    // bit corresponding to the directive we can give up on traversing up to find the specific\n                    // injector.\n                    injectorIndex = -1;\n                }\n            }\n        }\n    }\n    if (flags & InjectFlags.Optional && notFoundValue === undefined) {\n        // This must be set or the NullInjector will throw for optional deps\n        notFoundValue = null;\n    }\n    if ((flags & (InjectFlags.Self | InjectFlags.Host)) === 0) {\n        /** @type {?} */\n        const moduleInjector = lView[INJECTOR$1];\n        // switch to `injectInjectorOnly` implementation for module injector, since module injector\n        // should not have access to Component/Directive DI scope (that may happen through\n        // `directiveInject` implementation)\n        /** @type {?} */\n        const previousInjectImplementation = setInjectImplementation(undefined);\n        try {\n            if (moduleInjector) {\n                return moduleInjector.get(token, notFoundValue, flags & InjectFlags.Optional);\n            }\n            else {\n                return injectRootLimpMode(token, notFoundValue, flags & InjectFlags.Optional);\n            }\n        }\n        finally {\n            setInjectImplementation(previousInjectImplementation);\n        }\n    }\n    if (flags & InjectFlags.Optional) {\n        return notFoundValue;\n    }\n    else {\n        throw new Error(`NodeInjector: NOT_FOUND [${stringifyForError(token)}]`);\n    }\n}\n/** @type {?} */\nconst NOT_FOUND = {};\n/**\n * @template T\n * @param {?} injectorIndex\n * @param {?} lView\n * @param {?} token\n * @param {?} previousTView\n * @param {?} flags\n * @param {?} hostTElementNode\n * @return {?}\n */\nfunction searchTokensOnInjector(injectorIndex, lView, token, previousTView, flags, hostTElementNode) {\n    /** @type {?} */\n    const currentTView = lView[TVIEW];\n    /** @type {?} */\n    const tNode = (/** @type {?} */ (currentTView.data[injectorIndex + TNODE]));\n    // First, we need to determine if view providers can be accessed by the starting element.\n    // There are two possibities\n    /** @type {?} */\n    const canAccessViewProviders = previousTView == null ?\n        // 1) This is the first invocation `previousTView == null` which means that we are at the\n        // `TNode` of where injector is starting to look. In such a case the only time we are allowed\n        // to look into the ViewProviders is if:\n        // - we are on a component\n        // - AND the injector set `includeViewProviders` to true (implying that the token can see\n        // ViewProviders because it is the Component or a Service which itself was declared in\n        // ViewProviders)\n        (isComponentHost(tNode) && includeViewProviders) :\n        // 2) `previousTView != null` which means that we are now walking across the parent nodes.\n        // In such a case we are only allowed to look into the ViewProviders if:\n        // - We just crossed from child View to Parent View `previousTView != currentTView`\n        // - AND the parent TNode is an Element.\n        // This means that we just came from the Component's View and therefore are allowed to see\n        // into the ViewProviders.\n        (previousTView != currentTView && (tNode.type === 3 /* Element */));\n    // This special case happens when there is a @host on the inject and when we are searching\n    // on the host element node.\n    /** @type {?} */\n    const isHostSpecialCase = (flags & InjectFlags.Host) && hostTElementNode === tNode;\n    /** @type {?} */\n    const injectableIdx = locateDirectiveOrProvider(tNode, currentTView, token, canAccessViewProviders, isHostSpecialCase);\n    if (injectableIdx !== null) {\n        return getNodeInjectable(lView, currentTView, injectableIdx, (/** @type {?} */ (tNode)));\n    }\n    else {\n        return NOT_FOUND;\n    }\n}\n/**\n * Searches for the given token among the node's directives and providers.\n *\n * @template T\n * @param {?} tNode TNode on which directives are present.\n * @param {?} tView The tView we are currently processing\n * @param {?} token Provider token or type of a directive to look for.\n * @param {?} canAccessViewProviders Whether view providers should be considered.\n * @param {?} isHostSpecialCase Whether the host special case applies.\n * @return {?} Index of a found directive or provider, or null when none found.\n */\nfunction locateDirectiveOrProvider(tNode, tView, token, canAccessViewProviders, isHostSpecialCase) {\n    /** @type {?} */\n    const nodeProviderIndexes = tNode.providerIndexes;\n    /** @type {?} */\n    const tInjectables = tView.data;\n    /** @type {?} */\n    const injectablesStart = nodeProviderIndexes & 65535 /* ProvidersStartIndexMask */;\n    /** @type {?} */\n    const directivesStart = tNode.directiveStart;\n    /** @type {?} */\n    const directiveEnd = tNode.directiveEnd;\n    /** @type {?} */\n    const cptViewProvidersCount = nodeProviderIndexes >> 16 /* CptViewProvidersCountShift */;\n    /** @type {?} */\n    const startingIndex = canAccessViewProviders ? injectablesStart : injectablesStart + cptViewProvidersCount;\n    // When the host special case applies, only the viewProviders and the component are visible\n    /** @type {?} */\n    const endIndex = isHostSpecialCase ? injectablesStart + cptViewProvidersCount : directiveEnd;\n    for (let i = startingIndex; i < endIndex; i++) {\n        /** @type {?} */\n        const providerTokenOrDef = (/** @type {?} */ (tInjectables[i]));\n        if (i < directivesStart && token === providerTokenOrDef ||\n            i >= directivesStart && ((/** @type {?} */ (providerTokenOrDef))).type === token) {\n            return i;\n        }\n    }\n    if (isHostSpecialCase) {\n        /** @type {?} */\n        const dirDef = (/** @type {?} */ (tInjectables[directivesStart]));\n        if (dirDef && isComponentDef(dirDef) && dirDef.type === token) {\n            return directivesStart;\n        }\n    }\n    return null;\n}\n/**\n * Retrieve or instantiate the injectable from the `LView` at particular `index`.\n *\n * This function checks to see if the value has already been instantiated and if so returns the\n * cached `injectable`. Otherwise if it detects that the value is still a factory it\n * instantiates the `injectable` and caches the value.\n * @param {?} lView\n * @param {?} tView\n * @param {?} index\n * @param {?} tNode\n * @return {?}\n */\nfunction getNodeInjectable(lView, tView, index, tNode) {\n    /** @type {?} */\n    let value = lView[index];\n    /** @type {?} */\n    const tData = tView.data;\n    if (isFactory(value)) {\n        /** @type {?} */\n        const factory = value;\n        if (factory.resolving) {\n            throw new Error(`Circular dep for ${stringifyForError(tData[index])}`);\n        }\n        /** @type {?} */\n        const previousIncludeViewProviders = setIncludeViewProviders(factory.canSeeViewProviders);\n        factory.resolving = true;\n        /** @type {?} */\n        let previousInjectImplementation;\n        if (factory.injectImpl) {\n            previousInjectImplementation = setInjectImplementation(factory.injectImpl);\n        }\n        enterDI(lView, tNode);\n        try {\n            value = lView[index] = factory.factory(undefined, tData, lView, tNode);\n            // This code path is hit for both directives and providers.\n            // For perf reasons, we want to avoid searching for hooks on providers.\n            // It does no harm to try (the hooks just won't exist), but the extra\n            // checks are unnecessary and this is a hot path. So we check to see\n            // if the index of the dependency is in the directive range for this\n            // tNode. If it's not, we know it's a provider and skip hook registration.\n            if (tView.firstCreatePass && index >= tNode.directiveStart) {\n                ngDevMode && assertDirectiveDef(tData[index]);\n                registerPreOrderHooks(index, (/** @type {?} */ (tData[index])), tView);\n            }\n        }\n        finally {\n            if (factory.injectImpl)\n                setInjectImplementation(previousInjectImplementation);\n            setIncludeViewProviders(previousIncludeViewProviders);\n            factory.resolving = false;\n            leaveDI();\n        }\n    }\n    return value;\n}\n/**\n * Returns the bit in an injector's bloom filter that should be used to determine whether or not\n * the directive might be provided by the injector.\n *\n * When a directive is public, it is added to the bloom filter and given a unique ID that can be\n * retrieved on the Type. When the directive isn't public or the token is not a directive `null`\n * is returned as the node injector can not possibly provide that token.\n *\n * @param {?} token the injection token\n * @return {?} the matching bit to check in the bloom filter or `null` if the token is not known.\n *   When the returned value is negative then it represents special values such as `Injector`.\n */\nfunction bloomHashBitOrFactory(token) {\n    ngDevMode && assertDefined(token, 'token must be defined');\n    if (typeof token === 'string') {\n        return token.charCodeAt(0) || 0;\n    }\n    /** @type {?} */\n    const tokenId = ((/** @type {?} */ (token)))[NG_ELEMENT_ID];\n    // Negative token IDs are used for special objects such as `Injector`\n    return (typeof tokenId === 'number' && tokenId > 0) ? tokenId & BLOOM_MASK : tokenId;\n}\n/**\n * @param {?} bloomHash\n * @param {?} injectorIndex\n * @param {?} injectorView\n * @return {?}\n */\nfunction bloomHasToken(bloomHash, injectorIndex, injectorView) {\n    // Create a mask that targets the specific bit associated with the directive we're looking for.\n    // JS bit operations are 32 bits, so this will be a number between 2^0 and 2^31, corresponding\n    // to bit positions 0 - 31 in a 32 bit integer.\n    /** @type {?} */\n    const mask = 1 << bloomHash;\n    /** @type {?} */\n    const b7 = bloomHash & 0x80;\n    /** @type {?} */\n    const b6 = bloomHash & 0x40;\n    /** @type {?} */\n    const b5 = bloomHash & 0x20;\n    // Our bloom filter size is 256 bits, which is eight 32-bit bloom filter buckets:\n    // bf0 = [0 - 31], bf1 = [32 - 63], bf2 = [64 - 95], bf3 = [96 - 127], etc.\n    // Get the bloom filter value from the appropriate bucket based on the directive's bloomBit.\n    /** @type {?} */\n    let value;\n    if (b7) {\n        value = b6 ? (b5 ? injectorView[injectorIndex + 7] : injectorView[injectorIndex + 6]) :\n            (b5 ? injectorView[injectorIndex + 5] : injectorView[injectorIndex + 4]);\n    }\n    else {\n        value = b6 ? (b5 ? injectorView[injectorIndex + 3] : injectorView[injectorIndex + 2]) :\n            (b5 ? injectorView[injectorIndex + 1] : injectorView[injectorIndex]);\n    }\n    // If the bloom filter value has the bit corresponding to the directive's bloomBit flipped on,\n    // this injector is a potential match.\n    return !!(value & mask);\n}\n/**\n * Returns true if flags prevent parent injector from being searched for tokens\n * @param {?} flags\n * @param {?} isFirstHostTNode\n * @return {?}\n */\nfunction shouldSearchParent(flags, isFirstHostTNode) {\n    return !(flags & InjectFlags.Self) && !(flags & InjectFlags.Host && isFirstHostTNode);\n}\nclass NodeInjector {\n    /**\n     * @param {?} _tNode\n     * @param {?} _lView\n     */\n    constructor(_tNode, _lView) {\n        this._tNode = _tNode;\n        this._lView = _lView;\n    }\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @return {?}\n     */\n    get(token, notFoundValue) {\n        return getOrCreateInjectable(this._tNode, this._lView, token, undefined, notFoundValue);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NodeInjector.prototype._tNode;\n    /**\n     * @type {?}\n     * @private\n     */\n    NodeInjector.prototype._lView;\n}\n/**\n * \\@codeGenApi\n * @template T\n * @param {?} type\n * @return {?}\n */\nfunction ɵɵgetFactoryOf(type) {\n    /** @type {?} */\n    const typeAny = (/** @type {?} */ (type));\n    if (isForwardRef(type)) {\n        return (/** @type {?} */ (((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const factory = ɵɵgetFactoryOf(resolveForwardRef(typeAny));\n            return factory ? factory() : null;\n        }))));\n    }\n    /** @type {?} */\n    let factory = getFactoryDef(typeAny);\n    if (factory === null) {\n        /** @type {?} */\n        const injectorDef = getInjectorDef(typeAny);\n        factory = injectorDef && injectorDef.factory;\n    }\n    return factory || null;\n}\n/**\n * \\@codeGenApi\n * @template T\n * @param {?} type\n * @return {?}\n */\nfunction ɵɵgetInheritedFactory(type) {\n    return noSideEffects((/**\n     * @return {?}\n     */\n    () => {\n        /** @type {?} */\n        const proto = (/** @type {?} */ (Object.getPrototypeOf(type.prototype).constructor));\n        /** @type {?} */\n        const factory = ((/** @type {?} */ (proto)))[NG_FACTORY_DEF] || ɵɵgetFactoryOf(proto);\n        if (factory !== null) {\n            return factory;\n        }\n        else {\n            // There is no factory defined. Either this was improper usage of inheritance\n            // (no Angular decorator on the superclass) or there is no constructor at all\n            // in the inheritance chain. Since the two cases cannot be distinguished, the\n            // latter has to be assumed.\n            return (/**\n             * @param {?} t\n             * @return {?}\n             */\n            (t) => new t());\n        }\n    }));\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst ERROR_TYPE = 'ngType';\nconst ERROR_DEBUG_CONTEXT = 'ngDebugContext';\nconst ERROR_ORIGINAL_ERROR = 'ngOriginalError';\nconst ERROR_LOGGER = 'ngErrorLogger';\nfunction wrappedError(message, originalError) {\n    const msg = `${message} caused by: ${originalError instanceof Error ? originalError.message : originalError}`;\n    const error = Error(msg);\n    error[ERROR_ORIGINAL_ERROR] = originalError;\n    return error;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} error\n * @return {?}\n */\nfunction getType(error) {\n    return ((/** @type {?} */ (error)))[ERROR_TYPE];\n}\n/**\n * @param {?} error\n * @return {?}\n */\nfunction getDebugContext(error) {\n    return ((/** @type {?} */ (error)))[ERROR_DEBUG_CONTEXT];\n}\n/**\n * @param {?} error\n * @return {?}\n */\nfunction getOriginalError(error) {\n    return ((/** @type {?} */ (error)))[ERROR_ORIGINAL_ERROR];\n}\n/**\n * @param {?} error\n * @return {?}\n */\nfunction getErrorLogger(error) {\n    return ((/** @type {?} */ (error)))[ERROR_LOGGER] || defaultErrorLogger;\n}\n/**\n * @param {?} console\n * @param {...?} values\n * @return {?}\n */\nfunction defaultErrorLogger(console, ...values) {\n    ((/** @type {?} */ (console.error)))(...values);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/error_handler.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Provides a hook for centralized exception handling.\n *\n * The default implementation of `ErrorHandler` prints error messages to the `console`. To\n * intercept error handling, write a custom exception handler that replaces this default as\n * appropriate for your app.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```\n * class MyErrorHandler implements ErrorHandler {\n *   handleError(error) {\n *     // do something with the exception\n *   }\n * }\n *\n * \\@NgModule({\n *   providers: [{provide: ErrorHandler, useClass: MyErrorHandler}]\n * })\n * class MyModule {}\n * ```\n *\n * \\@publicApi\n */\nclass ErrorHandler {\n    constructor() {\n        /**\n         * \\@internal\n         */\n        this._console = console;\n    }\n    /**\n     * @param {?} error\n     * @return {?}\n     */\n    handleError(error) {\n        /** @type {?} */\n        const originalError = this._findOriginalError(error);\n        /** @type {?} */\n        const context = this._findContext(error);\n        // Note: Browser consoles show the place from where console.error was called.\n        // We can use this to give users additional information about the error.\n        /** @type {?} */\n        const errorLogger = getErrorLogger(error);\n        errorLogger(this._console, `ERROR`, error);\n        if (originalError) {\n            errorLogger(this._console, `ORIGINAL ERROR`, originalError);\n        }\n        if (context) {\n            errorLogger(this._console, 'ERROR CONTEXT', context);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} error\n     * @return {?}\n     */\n    _findContext(error) {\n        if (error) {\n            return getDebugContext(error) ? getDebugContext(error) :\n                this._findContext(getOriginalError(error));\n        }\n        return null;\n    }\n    /**\n     * \\@internal\n     * @param {?} error\n     * @return {?}\n     */\n    _findOriginalError(error) {\n        /** @type {?} */\n        let e = getOriginalError(error);\n        while (e && getOriginalError(e)) {\n            e = getOriginalError(e);\n        }\n        return e;\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    ErrorHandler.prototype._console;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/metadata/schema.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A schema definition associated with an NgModule.\n *\n * @see `\\@NgModule`, `CUSTOM_ELEMENTS_SCHEMA`, `NO_ERRORS_SCHEMA`\n *\n * @param name The name of a defined schema.\n *\n * \\@publicApi\n * @record\n */\nfunction SchemaMetadata() { }\nif (false) {\n    /** @type {?} */\n    SchemaMetadata.prototype.name;\n}\n/**\n * Defines a schema that allows an NgModule to contain the following:\n * - Non-Angular elements named with dash case (`-`).\n * - Element properties named with dash case (`-`).\n * Dash case is the naming convention for custom elements.\n *\n * \\@publicApi\n * @type {?}\n */\nconst CUSTOM_ELEMENTS_SCHEMA = {\n    name: 'custom-elements'\n};\n/**\n * Defines a schema that allows any property on any element.\n *\n * \\@publicApi\n * @type {?}\n */\nconst NO_ERRORS_SCHEMA = {\n    name: 'no-errors-schema'\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/bypass.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {string} */\nconst BypassType = {\n    Url: \"URL\",\n    Html: \"HTML\",\n    ResourceUrl: \"ResourceURL\",\n    Script: \"Script\",\n    Style: \"Style\",\n};\n/**\n * Marker interface for a value that's safe to use in a particular context.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeValue() { }\n/**\n * Marker interface for a value that's safe to use as HTML.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeHtml() { }\n/**\n * Marker interface for a value that's safe to use as style (CSS).\n *\n * \\@publicApi\n * @record\n */\nfunction SafeStyle() { }\n/**\n * Marker interface for a value that's safe to use as JavaScript.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeScript() { }\n/**\n * Marker interface for a value that's safe to use as a URL linking to a document.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeUrl() { }\n/**\n * Marker interface for a value that's safe to use as a URL to load executable code from.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeResourceUrl() { }\n/**\n * @abstract\n */\nclass SafeValueImpl {\n    /**\n     * @param {?} changingThisBreaksApplicationSecurity\n     */\n    constructor(changingThisBreaksApplicationSecurity) {\n        this.changingThisBreaksApplicationSecurity = changingThisBreaksApplicationSecurity;\n    }\n    /**\n     * @return {?}\n     */\n    toString() {\n        return `SafeValue must use [property]=binding: ${this.changingThisBreaksApplicationSecurity}` +\n            ` (see http://g.co/ng/security#xss)`;\n    }\n}\nif (false) {\n    /** @type {?} */\n    SafeValueImpl.prototype.changingThisBreaksApplicationSecurity;\n    /**\n     * @abstract\n     * @return {?}\n     */\n    SafeValueImpl.prototype.getTypeName = function () { };\n}\nclass SafeHtmlImpl extends SafeValueImpl {\n    /**\n     * @return {?}\n     */\n    getTypeName() {\n        return \"HTML\" /* Html */;\n    }\n}\nclass SafeStyleImpl extends SafeValueImpl {\n    /**\n     * @return {?}\n     */\n    getTypeName() {\n        return \"Style\" /* Style */;\n    }\n}\nclass SafeScriptImpl extends SafeValueImpl {\n    /**\n     * @return {?}\n     */\n    getTypeName() {\n        return \"Script\" /* Script */;\n    }\n}\nclass SafeUrlImpl extends SafeValueImpl {\n    /**\n     * @return {?}\n     */\n    getTypeName() {\n        return \"URL\" /* Url */;\n    }\n}\nclass SafeResourceUrlImpl extends SafeValueImpl {\n    /**\n     * @return {?}\n     */\n    getTypeName() {\n        return \"ResourceURL\" /* ResourceUrl */;\n    }\n}\n/**\n * @template T\n * @param {?} value\n * @return {?}\n */\nfunction unwrapSafeValue(value) {\n    return value instanceof SafeValueImpl ? (/** @type {?} */ ((/** @type {?} */ (value.changingThisBreaksApplicationSecurity)))) :\n        (/** @type {?} */ ((/** @type {?} */ (value))));\n}\n/**\n * @param {?} value\n * @param {?} type\n * @return {?}\n */\nfunction allowSanitizationBypassAndThrow(value, type) {\n    /** @type {?} */\n    const actualType = getSanitizationBypassType(value);\n    if (actualType != null && actualType !== type) {\n        // Allow ResourceURLs in URL contexts, they are strictly more trusted.\n        if (actualType === \"ResourceURL\" /* ResourceUrl */ && type === \"URL\" /* Url */)\n            return true;\n        throw new Error(`Required a safe ${type}, got a ${actualType} (see http://g.co/ng/security#xss)`);\n    }\n    return actualType === type;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction getSanitizationBypassType(value) {\n    return value instanceof SafeValueImpl && (/** @type {?} */ (value.getTypeName())) || null;\n}\n/**\n * Mark `html` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {\\@link htmlSanitizer} to be trusted implicitly.\n *\n * @param {?} trustedHtml `html` string which needs to be implicitly trusted.\n * @return {?} a `html` which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustHtml(trustedHtml) {\n    return new SafeHtmlImpl(trustedHtml);\n}\n/**\n * Mark `style` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {\\@link styleSanitizer} to be trusted implicitly.\n *\n * @param {?} trustedStyle `style` string which needs to be implicitly trusted.\n * @return {?} a `style` hich has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustStyle(trustedStyle) {\n    return new SafeStyleImpl(trustedStyle);\n}\n/**\n * Mark `script` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {\\@link scriptSanitizer} to be trusted implicitly.\n *\n * @param {?} trustedScript `script` string which needs to be implicitly trusted.\n * @return {?} a `script` which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustScript(trustedScript) {\n    return new SafeScriptImpl(trustedScript);\n}\n/**\n * Mark `url` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {\\@link urlSanitizer} to be trusted implicitly.\n *\n * @param {?} trustedUrl `url` string which needs to be implicitly trusted.\n * @return {?} a `url`  which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustUrl(trustedUrl) {\n    return new SafeUrlImpl(trustedUrl);\n}\n/**\n * Mark `url` string as trusted.\n *\n * This function wraps the trusted string in `String` and brands it in a way which makes it\n * recognizable to {\\@link resourceUrlSanitizer} to be trusted implicitly.\n *\n * @param {?} trustedResourceUrl `url` string which needs to be implicitly trusted.\n * @return {?} a `url` which has been branded to be implicitly trusted.\n */\nfunction bypassSanitizationTrustResourceUrl(trustedResourceUrl) {\n    return new SafeResourceUrlImpl(trustedResourceUrl);\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This file is used to control if the default rendering pipeline should be `ViewEngine` or `Ivy`.\n *\n * For more information on how to run and debug tests with either Ivy or View Engine (legacy),\n * please see [BAZEL.md](./docs/BAZEL.md).\n */\nlet _devMode = true;\nlet _runModeLocked = false;\n/**\n * Returns whether Angular is in development mode. After called once,\n * the value is locked and won't change any more.\n *\n * By default, this is true, unless a user calls `enableProdMode` before calling this.\n *\n * @publicApi\n */\nfunction isDevMode() {\n    _runModeLocked = true;\n    return _devMode;\n}\n/**\n * Disable Angular's development mode, which turns off assertions and other\n * checks within the framework.\n *\n * One important assertion this disables verifies that a change detection pass\n * does not result in additional changes to any bindings (also known as\n * unidirectional data flow).\n *\n * @publicApi\n */\nfunction enableProdMode() {\n    if (_runModeLocked) {\n        throw new Error('Cannot enable prod mode after platform setup.');\n    }\n    _devMode = false;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/inert_body.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This helper class is used to get hold of an inert tree of DOM elements containing dirty HTML\n * that needs sanitizing.\n * Depending upon browser support we must use one of three strategies for doing this.\n * Support: Safari 10.x -> XHR strategy\n * Support: Firefox -> DomParser strategy\n * Default: InertDocument strategy\n */\nclass InertBodyHelper {\n    /**\n     * @param {?} defaultDoc\n     */\n    constructor(defaultDoc) {\n        this.defaultDoc = defaultDoc;\n        this.inertDocument = this.defaultDoc.implementation.createHTMLDocument('sanitization-inert');\n        /** @type {?} */\n        let inertBodyElement = this.inertDocument.body;\n        if (inertBodyElement == null) {\n            // usually there should be only one body element in the document, but IE doesn't have any, so\n            // we need to create one.\n            /** @type {?} */\n            const inertHtml = this.inertDocument.createElement('html');\n            this.inertDocument.appendChild(inertHtml);\n            inertBodyElement = this.inertDocument.createElement('body');\n            inertHtml.appendChild(inertBodyElement);\n        }\n        inertBodyElement.innerHTML = '<svg><g onload=\"this.parentNode.remove()\"></g></svg>';\n        if (inertBodyElement.querySelector && !inertBodyElement.querySelector('svg')) {\n            // We just hit the Safari 10.1 bug - which allows JS to run inside the SVG G element\n            // so use the XHR strategy.\n            this.getInertBodyElement = this.getInertBodyElement_XHR;\n            return;\n        }\n        inertBodyElement.innerHTML = '<svg><p><style><img src=\"</style><img src=x onerror=alert(1)//\">';\n        if (inertBodyElement.querySelector && inertBodyElement.querySelector('svg img')) {\n            // We just hit the Firefox bug - which prevents the inner img JS from being sanitized\n            // so use the DOMParser strategy, if it is available.\n            // If the DOMParser is not available then we are not in Firefox (Server/WebWorker?) so we\n            // fall through to the default strategy below.\n            if (isDOMParserAvailable()) {\n                this.getInertBodyElement = this.getInertBodyElement_DOMParser;\n                return;\n            }\n        }\n        // None of the bugs were hit so it is safe for us to use the default InertDocument strategy\n        this.getInertBodyElement = this.getInertBodyElement_InertDocument;\n    }\n    /**\n     * Use XHR to create and fill an inert body element (on Safari 10.1)\n     * See\n     * https://github.com/cure53/DOMPurify/blob/a992d3a75031cb8bb032e5ea8399ba972bdf9a65/src/purify.js#L439-L449\n     * @private\n     * @param {?} html\n     * @return {?}\n     */\n    getInertBodyElement_XHR(html) {\n        // We add these extra elements to ensure that the rest of the content is parsed as expected\n        // e.g. leading whitespace is maintained and tags like `<meta>` do not get hoisted to the\n        // `<head>` tag.\n        html = '<body><remove></remove>' + html + '</body>';\n        try {\n            html = encodeURI(html);\n        }\n        catch (_a) {\n            return null;\n        }\n        /** @type {?} */\n        const xhr = new XMLHttpRequest();\n        xhr.responseType = 'document';\n        xhr.open('GET', 'data:text/html;charset=utf-8,' + html, false);\n        xhr.send(undefined);\n        /** @type {?} */\n        const body = xhr.response.body;\n        body.removeChild((/** @type {?} */ (body.firstChild)));\n        return body;\n    }\n    /**\n     * Use DOMParser to create and fill an inert body element (on Firefox)\n     * See https://github.com/cure53/DOMPurify/releases/tag/0.6.7\n     *\n     * @private\n     * @param {?} html\n     * @return {?}\n     */\n    getInertBodyElement_DOMParser(html) {\n        // We add these extra elements to ensure that the rest of the content is parsed as expected\n        // e.g. leading whitespace is maintained and tags like `<meta>` do not get hoisted to the\n        // `<head>` tag.\n        html = '<body><remove></remove>' + html + '</body>';\n        try {\n            /** @type {?} */\n            const body = (/** @type {?} */ (new ((/** @type {?} */ (window))).DOMParser().parseFromString(html, 'text/html').body));\n            body.removeChild((/** @type {?} */ (body.firstChild)));\n            return body;\n        }\n        catch (_a) {\n            return null;\n        }\n    }\n    /**\n     * Use an HTML5 `template` element, if supported, or an inert body element created via\n     * `createHtmlDocument` to create and fill an inert DOM element.\n     * This is the default sane strategy to use if the browser does not require one of the specialised\n     * strategies above.\n     * @private\n     * @param {?} html\n     * @return {?}\n     */\n    getInertBodyElement_InertDocument(html) {\n        // Prefer using <template> element if supported.\n        /** @type {?} */\n        const templateEl = this.inertDocument.createElement('template');\n        if ('content' in templateEl) {\n            templateEl.innerHTML = html;\n            return templateEl;\n        }\n        // Note that previously we used to do something like `this.inertDocument.body.innerHTML = html`\n        // and we returned the inert `body` node. This was changed, because IE seems to treat setting\n        // `innerHTML` on an inserted element differently, compared to one that hasn't been inserted\n        // yet. In particular, IE appears to split some of the text into multiple text nodes rather\n        // than keeping them in a single one which ends up messing with Ivy's i18n parsing further\n        // down the line. This has been worked around by creating a new inert `body` and using it as\n        // the root node in which we insert the HTML.\n        /** @type {?} */\n        const inertBody = this.inertDocument.createElement('body');\n        inertBody.innerHTML = html;\n        // Support: IE 9-11 only\n        // strip custom-namespaced attributes on IE<=11\n        if (((/** @type {?} */ (this.defaultDoc))).documentMode) {\n            this.stripCustomNsAttrs(inertBody);\n        }\n        return inertBody;\n    }\n    /**\n     * When IE9-11 comes across an unknown namespaced attribute e.g. 'xlink:foo' it adds 'xmlns:ns1'\n     * attribute to declare ns1 namespace and prefixes the attribute with 'ns1' (e.g.\n     * 'ns1:xlink:foo').\n     *\n     * This is undesirable since we don't want to allow any of these custom attributes. This method\n     * strips them all.\n     * @private\n     * @param {?} el\n     * @return {?}\n     */\n    stripCustomNsAttrs(el) {\n        /** @type {?} */\n        const elAttrs = el.attributes;\n        // loop backwards so that we can support removals.\n        for (let i = elAttrs.length - 1; 0 < i; i--) {\n            /** @type {?} */\n            const attrib = elAttrs.item(i);\n            /** @type {?} */\n            const attrName = (/** @type {?} */ (attrib)).name;\n            if (attrName === 'xmlns:ns1' || attrName.indexOf('ns1:') === 0) {\n                el.removeAttribute(attrName);\n            }\n        }\n        /** @type {?} */\n        let childNode = (/** @type {?} */ (el.firstChild));\n        while (childNode) {\n            if (childNode.nodeType === Node.ELEMENT_NODE)\n                this.stripCustomNsAttrs((/** @type {?} */ (childNode)));\n            childNode = childNode.nextSibling;\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    InertBodyHelper.prototype.inertDocument;\n    /**\n     * Get an inert DOM element containing DOM created from the dirty HTML string provided.\n     * The implementation of this is determined in the constructor, when the class is instantiated.\n     * @type {?}\n     */\n    InertBodyHelper.prototype.getInertBodyElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    InertBodyHelper.prototype.defaultDoc;\n}\n/**\n * We need to determine whether the DOMParser exists in the global context.\n * The try-catch is because, on some browsers, trying to access this property\n * on window can actually throw an error.\n *\n * @suppress {uselessCode}\n * @return {?}\n */\nfunction isDOMParserAvailable() {\n    try {\n        return !!((/** @type {?} */ (window))).DOMParser;\n    }\n    catch (_a) {\n        return false;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/url_sanitizer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A pattern that recognizes a commonly useful subset of URLs that are safe.\n *\n * This regular expression matches a subset of URLs that will not cause script\n * execution if used in URL context within a HTML document. Specifically, this\n * regular expression matches if (comment from here on and regex copied from\n * Soy's EscapingConventions):\n * (1) Either an allowed protocol (http, https, mailto or ftp).\n * (2) or no protocol.  A protocol must be followed by a colon. The below\n *     allows that by allowing colons only after one of the characters [/?#].\n *     A colon after a hash (#) must be in the fragment.\n *     Otherwise, a colon after a (?) must be in a query.\n *     Otherwise, a colon after a single solidus (/) must be in a path.\n *     Otherwise, a colon after a double solidus (//) must be in the authority\n *     (before port).\n *\n * The pattern disallows &, used in HTML entity declarations before\n * one of the characters in [/?#]. This disallows HTML entities used in the\n * protocol name, which should never happen, e.g. \"h&#116;tp\" for \"http\".\n * It also disallows HTML entities in the first path part of a relative path,\n * e.g. \"foo&lt;bar/baz\".  Our existing escaping functions should not produce\n * that. More importantly, it disallows masking of a colon,\n * e.g. \"javascript&#58;...\".\n *\n * This regular expression was taken from the Closure sanitization library.\n * @type {?}\n */\nconst SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^&:/?#]*(?:[/?#]|$))/gi;\n/* A pattern that matches safe srcset values */\n/** @type {?} */\nconst SAFE_SRCSET_PATTERN = /^(?:(?:https?|file):|[^&:/?#]*(?:[/?#]|$))/gi;\n/**\n * A pattern that matches safe data URLs. Only matches image, video and audio types.\n * @type {?}\n */\nconst DATA_URL_PATTERN = /^data:(?:image\\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\\/(?:mpeg|mp4|ogg|webm)|audio\\/(?:mp3|oga|ogg|opus));base64,[a-z0-9+\\/]+=*$/i;\n/**\n * @param {?} url\n * @return {?}\n */\nfunction _sanitizeUrl(url) {\n    url = String(url);\n    if (url.match(SAFE_URL_PATTERN) || url.match(DATA_URL_PATTERN))\n        return url;\n    if (isDevMode()) {\n        console.warn(`WARNING: sanitizing unsafe URL value ${url} (see http://g.co/ng/security#xss)`);\n    }\n    return 'unsafe:' + url;\n}\n/**\n * @param {?} srcset\n * @return {?}\n */\nfunction sanitizeSrcset(srcset) {\n    srcset = String(srcset);\n    return srcset.split(',').map((/**\n     * @param {?} srcset\n     * @return {?}\n     */\n    (srcset) => _sanitizeUrl(srcset.trim()))).join(', ');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/html_sanitizer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} tags\n * @return {?}\n */\nfunction tagSet(tags) {\n    /** @type {?} */\n    const res = {};\n    for (const t of tags.split(','))\n        res[t] = true;\n    return res;\n}\n/**\n * @param {...?} sets\n * @return {?}\n */\nfunction merge(...sets) {\n    /** @type {?} */\n    const res = {};\n    for (const s of sets) {\n        for (const v in s) {\n            if (s.hasOwnProperty(v))\n                res[v] = true;\n        }\n    }\n    return res;\n}\n// Good source of info about elements and attributes\n// http://dev.w3.org/html5/spec/Overview.html#semantics\n// http://simon.html5.org/html-elements\n// Safe Void Elements - HTML5\n// http://dev.w3.org/html5/spec/Overview.html#void-elements\n/** @type {?} */\nconst VOID_ELEMENTS = tagSet('area,br,col,hr,img,wbr');\n// Elements that you can, intentionally, leave open (and which close themselves)\n// http://dev.w3.org/html5/spec/Overview.html#optional-tags\n/** @type {?} */\nconst OPTIONAL_END_TAG_BLOCK_ELEMENTS = tagSet('colgroup,dd,dt,li,p,tbody,td,tfoot,th,thead,tr');\n/** @type {?} */\nconst OPTIONAL_END_TAG_INLINE_ELEMENTS = tagSet('rp,rt');\n/** @type {?} */\nconst OPTIONAL_END_TAG_ELEMENTS = merge(OPTIONAL_END_TAG_INLINE_ELEMENTS, OPTIONAL_END_TAG_BLOCK_ELEMENTS);\n// Safe Block Elements - HTML5\n/** @type {?} */\nconst BLOCK_ELEMENTS = merge(OPTIONAL_END_TAG_BLOCK_ELEMENTS, tagSet('address,article,' +\n    'aside,blockquote,caption,center,del,details,dialog,dir,div,dl,figure,figcaption,footer,h1,h2,h3,h4,h5,' +\n    'h6,header,hgroup,hr,ins,main,map,menu,nav,ol,pre,section,summary,table,ul'));\n// Inline Elements - HTML5\n/** @type {?} */\nconst INLINE_ELEMENTS = merge(OPTIONAL_END_TAG_INLINE_ELEMENTS, tagSet('a,abbr,acronym,audio,b,' +\n    'bdi,bdo,big,br,cite,code,del,dfn,em,font,i,img,ins,kbd,label,map,mark,picture,q,ruby,rp,rt,s,' +\n    'samp,small,source,span,strike,strong,sub,sup,time,track,tt,u,var,video'));\n/** @type {?} */\nconst VALID_ELEMENTS = merge(VOID_ELEMENTS, BLOCK_ELEMENTS, INLINE_ELEMENTS, OPTIONAL_END_TAG_ELEMENTS);\n// Attributes that have href and hence need to be sanitized\n/** @type {?} */\nconst URI_ATTRS = tagSet('background,cite,href,itemtype,longdesc,poster,src,xlink:href');\n// Attributes that have special href set hence need to be sanitized\n/** @type {?} */\nconst SRCSET_ATTRS = tagSet('srcset');\n/** @type {?} */\nconst HTML_ATTRS = tagSet('abbr,accesskey,align,alt,autoplay,axis,bgcolor,border,cellpadding,cellspacing,class,clear,color,cols,colspan,' +\n    'compact,controls,coords,datetime,default,dir,download,face,headers,height,hidden,hreflang,hspace,' +\n    'ismap,itemscope,itemprop,kind,label,lang,language,loop,media,muted,nohref,nowrap,open,preload,rel,rev,role,rows,rowspan,rules,' +\n    'scope,scrolling,shape,size,sizes,span,srclang,start,summary,tabindex,target,title,translate,type,usemap,' +\n    'valign,value,vspace,width');\n// Accessibility attributes as per WAI-ARIA 1.1 (W3C Working Draft 14 December 2018)\n/** @type {?} */\nconst ARIA_ATTRS = tagSet('aria-activedescendant,aria-atomic,aria-autocomplete,aria-busy,aria-checked,aria-colcount,aria-colindex,' +\n    'aria-colspan,aria-controls,aria-current,aria-describedby,aria-details,aria-disabled,aria-dropeffect,' +\n    'aria-errormessage,aria-expanded,aria-flowto,aria-grabbed,aria-haspopup,aria-hidden,aria-invalid,' +\n    'aria-keyshortcuts,aria-label,aria-labelledby,aria-level,aria-live,aria-modal,aria-multiline,' +\n    'aria-multiselectable,aria-orientation,aria-owns,aria-placeholder,aria-posinset,aria-pressed,aria-readonly,' +\n    'aria-relevant,aria-required,aria-roledescription,aria-rowcount,aria-rowindex,aria-rowspan,aria-selected,' +\n    'aria-setsize,aria-sort,aria-valuemax,aria-valuemin,aria-valuenow,aria-valuetext');\n// NB: This currently consciously doesn't support SVG. SVG sanitization has had several security\n// issues in the past, so it seems safer to leave it out if possible. If support for binding SVG via\n// innerHTML is required, SVG attributes should be added here.\n// NB: Sanitization does not allow <form> elements or other active elements (<button> etc). Those\n// can be sanitized, but they increase security surface area without a legitimate use case, so they\n// are left out here.\n/** @type {?} */\nconst VALID_ATTRS = merge(URI_ATTRS, SRCSET_ATTRS, HTML_ATTRS, ARIA_ATTRS);\n// Elements whose content should not be traversed/preserved, if the elements themselves are invalid.\n//\n// Typically, `<invalid>Some content</invalid>` would traverse (and in this case preserve)\n// `Some content`, but strip `invalid-element` opening/closing tags. For some elements, though, we\n// don't want to preserve the content, if the elements themselves are going to be removed.\n/** @type {?} */\nconst SKIP_TRAVERSING_CONTENT_IF_INVALID_ELEMENTS = tagSet('script,style,template');\n/**\n * SanitizingHtmlSerializer serializes a DOM fragment, stripping out any unsafe elements and unsafe\n * attributes.\n */\nclass SanitizingHtmlSerializer {\n    constructor() {\n        // Explicitly track if something was stripped, to avoid accidentally warning of sanitization just\n        // because characters were re-encoded.\n        this.sanitizedSomething = false;\n        this.buf = [];\n    }\n    /**\n     * @param {?} el\n     * @return {?}\n     */\n    sanitizeChildren(el) {\n        // This cannot use a TreeWalker, as it has to run on Angular's various DOM adapters.\n        // However this code never accesses properties off of `document` before deleting its contents\n        // again, so it shouldn't be vulnerable to DOM clobbering.\n        /** @type {?} */\n        let current = (/** @type {?} */ (el.firstChild));\n        /** @type {?} */\n        let traverseContent = true;\n        while (current) {\n            if (current.nodeType === Node.ELEMENT_NODE) {\n                traverseContent = this.startElement((/** @type {?} */ (current)));\n            }\n            else if (current.nodeType === Node.TEXT_NODE) {\n                this.chars((/** @type {?} */ (current.nodeValue)));\n            }\n            else {\n                // Strip non-element, non-text nodes.\n                this.sanitizedSomething = true;\n            }\n            if (traverseContent && current.firstChild) {\n                current = (/** @type {?} */ (current.firstChild));\n                continue;\n            }\n            while (current) {\n                // Leaving the element. Walk up and to the right, closing tags as we go.\n                if (current.nodeType === Node.ELEMENT_NODE) {\n                    this.endElement((/** @type {?} */ (current)));\n                }\n                /** @type {?} */\n                let next = this.checkClobberedElement(current, (/** @type {?} */ (current.nextSibling)));\n                if (next) {\n                    current = next;\n                    break;\n                }\n                current = this.checkClobberedElement(current, (/** @type {?} */ (current.parentNode)));\n            }\n        }\n        return this.buf.join('');\n    }\n    /**\n     * Sanitizes an opening element tag (if valid) and returns whether the element's contents should\n     * be traversed. Element content must always be traversed (even if the element itself is not\n     * valid/safe), unless the element is one of `SKIP_TRAVERSING_CONTENT_IF_INVALID_ELEMENTS`.\n     *\n     * @private\n     * @param {?} element The element to sanitize.\n     * @return {?} True if the element's contents should be traversed.\n     */\n    startElement(element) {\n        /** @type {?} */\n        const tagName = element.nodeName.toLowerCase();\n        if (!VALID_ELEMENTS.hasOwnProperty(tagName)) {\n            this.sanitizedSomething = true;\n            return !SKIP_TRAVERSING_CONTENT_IF_INVALID_ELEMENTS.hasOwnProperty(tagName);\n        }\n        this.buf.push('<');\n        this.buf.push(tagName);\n        /** @type {?} */\n        const elAttrs = element.attributes;\n        for (let i = 0; i < elAttrs.length; i++) {\n            /** @type {?} */\n            const elAttr = elAttrs.item(i);\n            /** @type {?} */\n            const attrName = (/** @type {?} */ (elAttr)).name;\n            /** @type {?} */\n            const lower = attrName.toLowerCase();\n            if (!VALID_ATTRS.hasOwnProperty(lower)) {\n                this.sanitizedSomething = true;\n                continue;\n            }\n            /** @type {?} */\n            let value = (/** @type {?} */ (elAttr)).value;\n            // TODO(martinprobst): Special case image URIs for data:image/...\n            if (URI_ATTRS[lower])\n                value = _sanitizeUrl(value);\n            if (SRCSET_ATTRS[lower])\n                value = sanitizeSrcset(value);\n            this.buf.push(' ', attrName, '=\"', encodeEntities(value), '\"');\n        }\n        this.buf.push('>');\n        return true;\n    }\n    /**\n     * @private\n     * @param {?} current\n     * @return {?}\n     */\n    endElement(current) {\n        /** @type {?} */\n        const tagName = current.nodeName.toLowerCase();\n        if (VALID_ELEMENTS.hasOwnProperty(tagName) && !VOID_ELEMENTS.hasOwnProperty(tagName)) {\n            this.buf.push('</');\n            this.buf.push(tagName);\n            this.buf.push('>');\n        }\n    }\n    /**\n     * @private\n     * @param {?} chars\n     * @return {?}\n     */\n    chars(chars) {\n        this.buf.push(encodeEntities(chars));\n    }\n    /**\n     * @param {?} node\n     * @param {?} nextNode\n     * @return {?}\n     */\n    checkClobberedElement(node, nextNode) {\n        if (nextNode &&\n            (node.compareDocumentPosition(nextNode) &\n                Node.DOCUMENT_POSITION_CONTAINED_BY) === Node.DOCUMENT_POSITION_CONTAINED_BY) {\n            throw new Error(`Failed to sanitize html because the element is clobbered: ${((/** @type {?} */ (node))).outerHTML}`);\n        }\n        return nextNode;\n    }\n}\nif (false) {\n    /** @type {?} */\n    SanitizingHtmlSerializer.prototype.sanitizedSomething;\n    /**\n     * @type {?}\n     * @private\n     */\n    SanitizingHtmlSerializer.prototype.buf;\n}\n// Regular Expressions for parsing tags and attributes\n/** @type {?} */\nconst SURROGATE_PAIR_REGEXP = /[\\uD800-\\uDBFF][\\uDC00-\\uDFFF]/g;\n// ! to ~ is the ASCII range.\n/** @type {?} */\nconst NON_ALPHANUMERIC_REGEXP = /([^\\#-~ |!])/g;\n/**\n * Escapes all potentially dangerous characters, so that the\n * resulting string can be safely inserted into attribute or\n * element text.\n * @param {?} value\n * @return {?}\n */\nfunction encodeEntities(value) {\n    return value.replace(/&/g, '&amp;')\n        .replace(SURROGATE_PAIR_REGEXP, (/**\n     * @param {?} match\n     * @return {?}\n     */\n    function (match) {\n        /** @type {?} */\n        const hi = match.charCodeAt(0);\n        /** @type {?} */\n        const low = match.charCodeAt(1);\n        return '&#' + (((hi - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000) + ';';\n    }))\n        .replace(NON_ALPHANUMERIC_REGEXP, (/**\n     * @param {?} match\n     * @return {?}\n     */\n    function (match) {\n        return '&#' + match.charCodeAt(0) + ';';\n    }))\n        .replace(/</g, '&lt;')\n        .replace(/>/g, '&gt;');\n}\n/** @type {?} */\nlet inertBodyHelper;\n/**\n * Sanitizes the given unsafe, untrusted HTML fragment, and returns HTML text that is safe to add to\n * the DOM in a browser environment.\n * @param {?} defaultDoc\n * @param {?} unsafeHtmlInput\n * @return {?}\n */\nfunction _sanitizeHtml(defaultDoc, unsafeHtmlInput) {\n    /** @type {?} */\n    let inertBodyElement = null;\n    try {\n        inertBodyHelper = inertBodyHelper || new InertBodyHelper(defaultDoc);\n        // Make sure unsafeHtml is actually a string (TypeScript types are not enforced at runtime).\n        /** @type {?} */\n        let unsafeHtml = unsafeHtmlInput ? String(unsafeHtmlInput) : '';\n        inertBodyElement = inertBodyHelper.getInertBodyElement(unsafeHtml);\n        // mXSS protection. Repeatedly parse the document to make sure it stabilizes, so that a browser\n        // trying to auto-correct incorrect HTML cannot cause formerly inert HTML to become dangerous.\n        /** @type {?} */\n        let mXSSAttempts = 5;\n        /** @type {?} */\n        let parsedHtml = unsafeHtml;\n        do {\n            if (mXSSAttempts === 0) {\n                throw new Error('Failed to sanitize html because the input is unstable');\n            }\n            mXSSAttempts--;\n            unsafeHtml = parsedHtml;\n            parsedHtml = (/** @type {?} */ (inertBodyElement)).innerHTML;\n            inertBodyElement = inertBodyHelper.getInertBodyElement(unsafeHtml);\n        } while (unsafeHtml !== parsedHtml);\n        /** @type {?} */\n        const sanitizer = new SanitizingHtmlSerializer();\n        /** @type {?} */\n        const safeHtml = sanitizer.sanitizeChildren((/** @type {?} */ (getTemplateContent((/** @type {?} */ (inertBodyElement))))) || inertBodyElement);\n        if (isDevMode() && sanitizer.sanitizedSomething) {\n            console.warn('WARNING: sanitizing HTML stripped some content, see http://g.co/ng/security#xss');\n        }\n        return safeHtml;\n    }\n    finally {\n        // In case anything goes wrong, clear out inertElement to reset the entire DOM structure.\n        if (inertBodyElement) {\n            /** @type {?} */\n            const parent = getTemplateContent(inertBodyElement) || inertBodyElement;\n            while (parent.firstChild) {\n                parent.removeChild(parent.firstChild);\n            }\n        }\n    }\n}\n/**\n * @param {?} el\n * @return {?}\n */\nfunction getTemplateContent(el) {\n    return 'content' in ((/** @type {?} */ (el))) && isTemplateElement(el) ?\n        el.content :\n        null;\n}\n/**\n * @param {?} el\n * @return {?}\n */\nfunction isTemplateElement(el) {\n    return el.nodeType === Node.ELEMENT_NODE && el.nodeName === 'TEMPLATE';\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/security.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst SecurityContext = {\n    NONE: 0,\n    HTML: 1,\n    STYLE: 2,\n    SCRIPT: 3,\n    URL: 4,\n    RESOURCE_URL: 5,\n};\nSecurityContext[SecurityContext.NONE] = 'NONE';\nSecurityContext[SecurityContext.HTML] = 'HTML';\nSecurityContext[SecurityContext.STYLE] = 'STYLE';\nSecurityContext[SecurityContext.SCRIPT] = 'SCRIPT';\nSecurityContext[SecurityContext.URL] = 'URL';\nSecurityContext[SecurityContext.RESOURCE_URL] = 'RESOURCE_URL';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/style_sanitizer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Regular expression for safe style values.\n *\n * Quotes (\" and ') are allowed, but a check must be done elsewhere to ensure they're balanced.\n *\n * ',' allows multiple values to be assigned to the same property (e.g. background-attachment or\n * font-family) and hence could allow multiple values to get injected, but that should pose no risk\n * of XSS.\n *\n * The function expression checks only for XSS safety, not for CSS validity.\n *\n * This regular expression was taken from the Closure sanitization library, and augmented for\n * transformation values.\n * @type {?}\n */\nconst VALUES = '[-,.\"\\'%_!# a-zA-Z0-9]+';\n/** @type {?} */\nconst TRANSFORMATION_FNS = '(?:matrix|translate|scale|rotate|skew|perspective)(?:X|Y|Z|3d)?';\n/** @type {?} */\nconst COLOR_FNS = '(?:rgb|hsl)a?';\n/** @type {?} */\nconst GRADIENTS = '(?:repeating-)?(?:linear|radial)-gradient';\n/** @type {?} */\nconst CSS3_FNS = '(?:attr|calc|var)';\n/** @type {?} */\nconst FN_ARGS = '\\\\([-0-9.%, #a-zA-Z]+\\\\)';\n/** @type {?} */\nconst SAFE_STYLE_VALUE = new RegExp(`^(${VALUES}|` +\n    `(?:${TRANSFORMATION_FNS}|${COLOR_FNS}|${GRADIENTS}|${CSS3_FNS})` +\n    `${FN_ARGS})$`, 'g');\n/**\n * Matches a `url(...)` value with an arbitrary argument as long as it does\n * not contain parentheses.\n *\n * The URL value still needs to be sanitized separately.\n *\n * `url(...)` values are a very common use case, e.g. for `background-image`. With carefully crafted\n * CSS style rules, it is possible to construct an information leak with `url` values in CSS, e.g.\n * by observing whether scroll bars are displayed, or character ranges used by a font face\n * definition.\n *\n * Angular only allows binding CSS values (as opposed to entire CSS rules), so it is unlikely that\n * binding a URL value without further cooperation from the page will cause an information leak, and\n * if so, it is just a leak, not a full blown XSS vulnerability.\n *\n * Given the common use case, low likelihood of attack vector, and low impact of an attack, this\n * code is permissive and allows URLs that sanitize otherwise.\n * @type {?}\n */\nconst URL_RE = /^url\\(([^)]+)\\)$/;\n/**\n * Checks that quotes (\" and ') are properly balanced inside a string. Assumes\n * that neither escape (\\) nor any other character that could result in\n * breaking out of a string parsing context are allowed;\n * see http://www.w3.org/TR/css3-syntax/#string-token-diagram.\n *\n * This code was taken from the Closure sanitization library.\n * @param {?} value\n * @return {?}\n */\nfunction hasBalancedQuotes(value) {\n    /** @type {?} */\n    let outsideSingle = true;\n    /** @type {?} */\n    let outsideDouble = true;\n    for (let i = 0; i < value.length; i++) {\n        /** @type {?} */\n        const c = value.charAt(i);\n        if (c === '\\'' && outsideDouble) {\n            outsideSingle = !outsideSingle;\n        }\n        else if (c === '\"' && outsideSingle) {\n            outsideDouble = !outsideDouble;\n        }\n    }\n    return outsideSingle && outsideDouble;\n}\n/**\n * Sanitizes the given untrusted CSS style property value (i.e. not an entire object, just a single\n * value) and returns a value that is safe to use in a browser environment.\n * @param {?} value\n * @return {?}\n */\nfunction _sanitizeStyle(value) {\n    value = String(value).trim(); // Make sure it's actually a string.\n    if (!value)\n        return '';\n    // Single url(...) values are supported, but only for URLs that sanitize cleanly. See above for\n    // reasoning behind this.\n    /** @type {?} */\n    const urlMatch = value.match(URL_RE);\n    if ((urlMatch && _sanitizeUrl(urlMatch[1]) === urlMatch[1]) ||\n        value.match(SAFE_STYLE_VALUE) && hasBalancedQuotes(value)) {\n        return value; // Safe style values.\n    }\n    if (isDevMode()) {\n        console.warn(`WARNING: sanitizing unsafe style value ${value} (see http://g.co/ng/security#xss).`);\n    }\n    return 'unsafe';\n}\n/** @enum {number} */\nconst StyleSanitizeMode = {\n    /** Just check to see if the property is required to be sanitized or not */\n    ValidateProperty: 1,\n    /** Skip checking the property; just sanitize the value */\n    SanitizeOnly: 2,\n    /** Check the property and (if true) then sanitize the value */\n    ValidateAndSanitize: 3,\n};\n/**\n * Used to intercept and sanitize style values before they are written to the renderer.\n *\n * This function is designed to be called in two modes. When a value is not provided\n * then the function will return a boolean whether a property will be sanitized later.\n * If a value is provided then the sanitized version of that will be returned.\n * @record\n */\nfunction StyleSanitizeFn() { }\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/sanitization.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An `html` sanitizer which converts untrusted `html` **string** into trusted string by removing\n * dangerous content.\n *\n * This method parses the `html` and locates potentially dangerous content (such as urls and\n * javascript) and removes it.\n *\n * It is possible to mark a string as trusted by calling {\\@link bypassSanitizationTrustHtml}.\n *\n * \\@publicApi\n * @param {?} unsafeHtml untrusted `html`, typically from the user.\n * @return {?} `html` string which is safe to display to user, because all of the dangerous javascript\n * and urls have been removed.\n *\n */\nfunction ɵɵsanitizeHtml(unsafeHtml) {\n    /** @type {?} */\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return sanitizer.sanitize(SecurityContext.HTML, unsafeHtml) || '';\n    }\n    if (allowSanitizationBypassAndThrow(unsafeHtml, \"HTML\" /* Html */)) {\n        return unwrapSafeValue(unsafeHtml);\n    }\n    return _sanitizeHtml(getDocument(), renderStringify(unsafeHtml));\n}\n/**\n * A `style` sanitizer which converts untrusted `style` **string** into trusted string by removing\n * dangerous content.\n *\n * This method parses the `style` and locates potentially dangerous content (such as urls and\n * javascript) and removes it.\n *\n * It is possible to mark a string as trusted by calling {\\@link bypassSanitizationTrustStyle}.\n *\n * \\@publicApi\n * @param {?} unsafeStyle untrusted `style`, typically from the user.\n * @return {?} `style` string which is safe to bind to the `style` properties, because all of the\n * dangerous javascript and urls have been removed.\n *\n */\nfunction ɵɵsanitizeStyle(unsafeStyle) {\n    /** @type {?} */\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return sanitizer.sanitize(SecurityContext.STYLE, unsafeStyle) || '';\n    }\n    if (allowSanitizationBypassAndThrow(unsafeStyle, \"Style\" /* Style */)) {\n        return unwrapSafeValue(unsafeStyle);\n    }\n    return _sanitizeStyle(renderStringify(unsafeStyle));\n}\n/**\n * A `url` sanitizer which converts untrusted `url` **string** into trusted string by removing\n * dangerous\n * content.\n *\n * This method parses the `url` and locates potentially dangerous content (such as javascript) and\n * removes it.\n *\n * It is possible to mark a string as trusted by calling {\\@link bypassSanitizationTrustUrl}.\n *\n * \\@publicApi\n * @param {?} unsafeUrl untrusted `url`, typically from the user.\n * @return {?} `url` string which is safe to bind to the `src` properties such as `<img src>`, because\n * all of the dangerous javascript has been removed.\n *\n */\nfunction ɵɵsanitizeUrl(unsafeUrl) {\n    /** @type {?} */\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return sanitizer.sanitize(SecurityContext.URL, unsafeUrl) || '';\n    }\n    if (allowSanitizationBypassAndThrow(unsafeUrl, \"URL\" /* Url */)) {\n        return unwrapSafeValue(unsafeUrl);\n    }\n    return _sanitizeUrl(renderStringify(unsafeUrl));\n}\n/**\n * A `url` sanitizer which only lets trusted `url`s through.\n *\n * This passes only `url`s marked trusted by calling {\\@link bypassSanitizationTrustResourceUrl}.\n *\n * \\@publicApi\n * @param {?} unsafeResourceUrl untrusted `url`, typically from the user.\n * @return {?} `url` string which is safe to bind to the `src` properties such as `<img src>`, because\n * only trusted `url`s have been allowed to pass.\n *\n */\nfunction ɵɵsanitizeResourceUrl(unsafeResourceUrl) {\n    /** @type {?} */\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return sanitizer.sanitize(SecurityContext.RESOURCE_URL, unsafeResourceUrl) || '';\n    }\n    if (allowSanitizationBypassAndThrow(unsafeResourceUrl, \"ResourceURL\" /* ResourceUrl */)) {\n        return unwrapSafeValue(unsafeResourceUrl);\n    }\n    throw new Error('unsafe value used in a resource URL context (see http://g.co/ng/security#xss)');\n}\n/**\n * A `script` sanitizer which only lets trusted javascript through.\n *\n * This passes only `script`s marked trusted by calling {\\@link\n * bypassSanitizationTrustScript}.\n *\n * \\@publicApi\n * @param {?} unsafeScript untrusted `script`, typically from the user.\n * @return {?} `url` string which is safe to bind to the `<script>` element such as `<img src>`,\n * because only trusted `scripts` have been allowed to pass.\n *\n */\nfunction ɵɵsanitizeScript(unsafeScript) {\n    /** @type {?} */\n    const sanitizer = getSanitizer();\n    if (sanitizer) {\n        return sanitizer.sanitize(SecurityContext.SCRIPT, unsafeScript) || '';\n    }\n    if (allowSanitizationBypassAndThrow(unsafeScript, \"Script\" /* Script */)) {\n        return unwrapSafeValue(unsafeScript);\n    }\n    throw new Error('unsafe value used in a script context');\n}\n/**\n * Detects which sanitizer to use for URL property, based on tag name and prop name.\n *\n * The rules are based on the RESOURCE_URL context config from\n * `packages/compiler/src/schema/dom_security_schema.ts`.\n * If tag and prop names don't match Resource URL schema, use URL sanitizer.\n * @param {?} tag\n * @param {?} prop\n * @return {?}\n */\nfunction getUrlSanitizer(tag, prop) {\n    if ((prop === 'src' &&\n        (tag === 'embed' || tag === 'frame' || tag === 'iframe' || tag === 'media' ||\n            tag === 'script')) ||\n        (prop === 'href' && (tag === 'base' || tag === 'link'))) {\n        return ɵɵsanitizeResourceUrl;\n    }\n    return ɵɵsanitizeUrl;\n}\n/**\n * Sanitizes URL, selecting sanitizer function based on tag and property names.\n *\n * This function is used in case we can't define security context at compile time, when only prop\n * name is available. This happens when we generate host bindings for Directives/Components. The\n * host element is unknown at compile time, so we defer calculation of specific sanitizer to\n * runtime.\n *\n * \\@publicApi\n * @param {?} unsafeUrl untrusted `url`, typically from the user.\n * @param {?} tag target element tag name.\n * @param {?} prop name of the property that contains the value.\n * @return {?} `url` string which is safe to bind.\n *\n */\nfunction ɵɵsanitizeUrlOrResourceUrl(unsafeUrl, tag, prop) {\n    return getUrlSanitizer(tag, prop)(unsafeUrl);\n}\n/**\n * The default style sanitizer will handle sanitization for style properties by\n * sanitizing any CSS property that can include a `url` value (usually image-based properties)\n *\n * \\@publicApi\n * @type {?}\n */\nconst ɵɵdefaultStyleSanitizer = ((/** @type {?} */ ((/**\n * @param {?} prop\n * @param {?} value\n * @param {?=} mode\n * @return {?}\n */\nfunction (prop, value, mode) {\n    if (value === undefined && mode === undefined) {\n        // This is a workaround for the fact that `StyleSanitizeFn` should not exist once PR#34480\n        // lands. For now the `StyleSanitizeFn` and should act like `(value: any) => string` as a\n        // work around.\n        return ɵɵsanitizeStyle(prop);\n    }\n    mode = mode || 3 /* ValidateAndSanitize */;\n    /** @type {?} */\n    let doSanitizeValue = true;\n    if (mode & 1 /* ValidateProperty */) {\n        doSanitizeValue = stylePropNeedsSanitization(prop);\n    }\n    if (mode & 2 /* SanitizeOnly */) {\n        return doSanitizeValue ? ɵɵsanitizeStyle(value) : unwrapSafeValue(value);\n    }\n    else {\n        return doSanitizeValue;\n    }\n}))));\n/**\n * @param {?} prop\n * @return {?}\n */\nfunction stylePropNeedsSanitization(prop) {\n    return prop === 'background-image' || prop === 'backgroundImage' || prop === 'background' ||\n        prop === 'border-image' || prop === 'borderImage' || prop === 'border-image-source' ||\n        prop === 'borderImageSource' || prop === 'filter' || prop === 'list-style' ||\n        prop === 'listStyle' || prop === 'list-style-image' || prop === 'listStyleImage' ||\n        prop === 'clip-path' || prop === 'clipPath';\n}\n/**\n * @param {?} name\n * @return {?}\n */\nfunction validateAgainstEventProperties(name) {\n    if (name.toLowerCase().startsWith('on')) {\n        /** @type {?} */\n        const msg = `Binding to event property '${name}' is disallowed for security reasons, ` +\n            `please use (${name.slice(2)})=...` +\n            `\\nIf '${name}' is a directive input, make sure the directive is imported by the` +\n            ` current module.`;\n        throw new Error(msg);\n    }\n}\n/**\n * @param {?} name\n * @return {?}\n */\nfunction validateAgainstEventAttributes(name) {\n    if (name.toLowerCase().startsWith('on')) {\n        /** @type {?} */\n        const msg = `Binding to event attribute '${name}' is disallowed for security reasons, ` +\n            `please use (${name.slice(2)})=...`;\n        throw new Error(msg);\n    }\n}\n/**\n * @return {?}\n */\nfunction getSanitizer() {\n    /** @type {?} */\n    const lView = getLView();\n    return lView && lView[SANITIZER];\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * THIS FILE CONTAINS CODE WHICH SHOULD BE TREE SHAKEN AND NEVER CALLED FROM PRODUCTION CODE!!!\n */\n/**\n * Creates an `Array` construction with a given name. This is useful when\n * looking for memory consumption to see what time of array it is.\n *\n *\n * @param name Name to give to the constructor\n * @returns A subclass of `Array` if possible. This can only be done in\n *          environments which support `class` construct.\n */\nfunction createNamedArrayType(name) {\n    // This should never be called in prod mode, so let's verify that is the case.\n    if (ngDevMode) {\n        try {\n            // We need to do it this way so that TypeScript does not down-level the below code.\n            const FunctionConstructor = createNamedArrayType.constructor;\n            return (new FunctionConstructor('Array', `return class ${name} extends Array{}`))(Array);\n        }\n        catch (e) {\n            // If it does not work just give up and fall back to regular Array.\n            return Array;\n        }\n    }\n    else {\n        throw new Error('Looks like we are in \\'prod mode\\', but we are creating a named Array type, which is wrong! Check your code');\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction normalizeDebugBindingName(name) {\n    // Attribute names with `$` (eg `x-y$`) are valid per spec, but unsupported by some browsers\n    name = camelCaseToDashCase(name.replace(/[$@]/g, '_'));\n    return `ng-reflect-${name}`;\n}\nconst CAMEL_CASE_REGEXP = /([A-Z])/g;\nfunction camelCaseToDashCase(input) {\n    return input.replace(CAMEL_CASE_REGEXP, (...m) => '-' + m[1].toLowerCase());\n}\nfunction normalizeDebugBindingValue(value) {\n    try {\n        // Limit the size of the value as otherwise the DOM just gets polluted.\n        return value != null ? value.toString().slice(0, 30) : value;\n    }\n    catch (e) {\n        return '[ERROR] Exception while trying to serialize the value';\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/context_discovery.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Returns the matching `LContext` data for a given DOM node, directive or component instance.\n *\n * This function will examine the provided DOM element, component, or directive instance\\'s\n * monkey-patched property to derive the `LContext` data. Once called then the monkey-patched\n * value will be that of the newly created `LContext`.\n *\n * If the monkey-patched value is the `LView` instance then the context value for that\n * target will be created and the monkey-patch reference will be updated. Therefore when this\n * function is called it may mutate the provided element\\'s, component\\'s or any of the associated\n * directive\\'s monkey-patch values.\n *\n * If the monkey-patch value is not detected then the code will walk up the DOM until an element\n * is found which contains a monkey-patch reference. When that occurs then the provided element\n * will be updated with a new context (which is then returned). If the monkey-patch value is not\n * detected for a component/directive instance then it will throw an error (all components and\n * directives should be automatically monkey-patched by ivy).\n *\n * @param {?} target Component, Directive or DOM Node.\n * @return {?}\n */\nfunction getLContext(target) {\n    /** @type {?} */\n    let mpValue = readPatchedData(target);\n    if (mpValue) {\n        // only when it's an array is it considered an LView instance\n        // ... otherwise it's an already constructed LContext instance\n        if (Array.isArray(mpValue)) {\n            /** @type {?} */\n            const lView = (/** @type {?} */ (mpValue));\n            /** @type {?} */\n            let nodeIndex;\n            /** @type {?} */\n            let component = undefined;\n            /** @type {?} */\n            let directives = undefined;\n            if (isComponentInstance(target)) {\n                nodeIndex = findViaComponent(lView, target);\n                if (nodeIndex == -1) {\n                    throw new Error('The provided component was not found in the application');\n                }\n                component = target;\n            }\n            else if (isDirectiveInstance(target)) {\n                nodeIndex = findViaDirective(lView, target);\n                if (nodeIndex == -1) {\n                    throw new Error('The provided directive was not found in the application');\n                }\n                directives = getDirectivesAtNodeIndex(nodeIndex, lView, false);\n            }\n            else {\n                nodeIndex = findViaNativeElement(lView, (/** @type {?} */ (target)));\n                if (nodeIndex == -1) {\n                    return null;\n                }\n            }\n            // the goal is not to fill the entire context full of data because the lookups\n            // are expensive. Instead, only the target data (the element, component, container, ICU\n            // expression or directive details) are filled into the context. If called multiple times\n            // with different target values then the missing target data will be filled in.\n            /** @type {?} */\n            const native = unwrapRNode(lView[nodeIndex]);\n            /** @type {?} */\n            const existingCtx = readPatchedData(native);\n            /** @type {?} */\n            const context = (existingCtx && !Array.isArray(existingCtx)) ?\n                existingCtx :\n                createLContext(lView, nodeIndex, native);\n            // only when the component has been discovered then update the monkey-patch\n            if (component && context.component === undefined) {\n                context.component = component;\n                attachPatchData(context.component, context);\n            }\n            // only when the directives have been discovered then update the monkey-patch\n            if (directives && context.directives === undefined) {\n                context.directives = directives;\n                for (let i = 0; i < directives.length; i++) {\n                    attachPatchData(directives[i], context);\n                }\n            }\n            attachPatchData(context.native, context);\n            mpValue = context;\n        }\n    }\n    else {\n        /** @type {?} */\n        const rElement = (/** @type {?} */ (target));\n        ngDevMode && assertDomNode(rElement);\n        // if the context is not found then we need to traverse upwards up the DOM\n        // to find the nearest element that has already been monkey patched with data\n        /** @type {?} */\n        let parent = (/** @type {?} */ (rElement));\n        while (parent = parent.parentNode) {\n            /** @type {?} */\n            const parentContext = readPatchedData(parent);\n            if (parentContext) {\n                /** @type {?} */\n                let lView;\n                if (Array.isArray(parentContext)) {\n                    lView = (/** @type {?} */ (parentContext));\n                }\n                else {\n                    lView = parentContext.lView;\n                }\n                // the edge of the app was also reached here through another means\n                // (maybe because the DOM was changed manually).\n                if (!lView) {\n                    return null;\n                }\n                /** @type {?} */\n                const index = findViaNativeElement(lView, rElement);\n                if (index >= 0) {\n                    /** @type {?} */\n                    const native = unwrapRNode(lView[index]);\n                    /** @type {?} */\n                    const context = createLContext(lView, index, native);\n                    attachPatchData(native, context);\n                    mpValue = context;\n                    break;\n                }\n            }\n        }\n    }\n    return ((/** @type {?} */ (mpValue))) || null;\n}\n/**\n * Creates an empty instance of a `LContext` context\n * @param {?} lView\n * @param {?} nodeIndex\n * @param {?} native\n * @return {?}\n */\nfunction createLContext(lView, nodeIndex, native) {\n    return {\n        lView,\n        nodeIndex,\n        native,\n        component: undefined,\n        directives: undefined,\n        localRefs: undefined,\n    };\n}\n/**\n * Takes a component instance and returns the view for that component.\n *\n * @param {?} componentInstance\n * @return {?} The component's view\n */\nfunction getComponentViewByInstance(componentInstance) {\n    /** @type {?} */\n    let lView = readPatchedData(componentInstance);\n    /** @type {?} */\n    let view;\n    if (Array.isArray(lView)) {\n        /** @type {?} */\n        const nodeIndex = findViaComponent(lView, componentInstance);\n        view = getComponentLViewByIndex(nodeIndex, lView);\n        /** @type {?} */\n        const context = createLContext(lView, nodeIndex, (/** @type {?} */ (view[HOST])));\n        context.component = componentInstance;\n        attachPatchData(componentInstance, context);\n        attachPatchData(context.native, context);\n    }\n    else {\n        /** @type {?} */\n        const context = (/** @type {?} */ ((/** @type {?} */ (lView))));\n        view = getComponentLViewByIndex(context.nodeIndex, context.lView);\n    }\n    return view;\n}\n/**\n * Assigns the given data to the given target (which could be a component,\n * directive or DOM node instance) using monkey-patching.\n * @param {?} target\n * @param {?} data\n * @return {?}\n */\nfunction attachPatchData(target, data) {\n    target[MONKEY_PATCH_KEY_NAME] = data;\n}\n/**\n * @param {?} instance\n * @return {?}\n */\nfunction isComponentInstance(instance) {\n    return instance && instance.constructor && instance.constructor.ɵcmp;\n}\n/**\n * @param {?} instance\n * @return {?}\n */\nfunction isDirectiveInstance(instance) {\n    return instance && instance.constructor && instance.constructor.ɵdir;\n}\n/**\n * Locates the element within the given LView and returns the matching index\n * @param {?} lView\n * @param {?} target\n * @return {?}\n */\nfunction findViaNativeElement(lView, target) {\n    /** @type {?} */\n    let tNode = lView[TVIEW].firstChild;\n    while (tNode) {\n        /** @type {?} */\n        const native = (/** @type {?} */ (getNativeByTNodeOrNull(tNode, lView)));\n        if (native === target) {\n            return tNode.index;\n        }\n        tNode = traverseNextElement(tNode);\n    }\n    return -1;\n}\n/**\n * Locates the next tNode (child, sibling or parent).\n * @param {?} tNode\n * @return {?}\n */\nfunction traverseNextElement(tNode) {\n    if (tNode.child) {\n        return tNode.child;\n    }\n    else if (tNode.next) {\n        return tNode.next;\n    }\n    else {\n        // Let's take the following template: <div><span>text</span></div><component/>\n        // After checking the text node, we need to find the next parent that has a \"next\" TNode,\n        // in this case the parent `div`, so that we can find the component.\n        while (tNode.parent && !tNode.parent.next) {\n            tNode = tNode.parent;\n        }\n        return tNode.parent && tNode.parent.next;\n    }\n}\n/**\n * Locates the component within the given LView and returns the matching index\n * @param {?} lView\n * @param {?} componentInstance\n * @return {?}\n */\nfunction findViaComponent(lView, componentInstance) {\n    /** @type {?} */\n    const componentIndices = lView[TVIEW].components;\n    if (componentIndices) {\n        for (let i = 0; i < componentIndices.length; i++) {\n            /** @type {?} */\n            const elementComponentIndex = componentIndices[i];\n            /** @type {?} */\n            const componentView = getComponentLViewByIndex(elementComponentIndex, lView);\n            if (componentView[CONTEXT] === componentInstance) {\n                return elementComponentIndex;\n            }\n        }\n    }\n    else {\n        /** @type {?} */\n        const rootComponentView = getComponentLViewByIndex(HEADER_OFFSET, lView);\n        /** @type {?} */\n        const rootComponent = rootComponentView[CONTEXT];\n        if (rootComponent === componentInstance) {\n            // we are dealing with the root element here therefore we know that the\n            // element is the very first element after the HEADER data in the lView\n            return HEADER_OFFSET;\n        }\n    }\n    return -1;\n}\n/**\n * Locates the directive within the given LView and returns the matching index\n * @param {?} lView\n * @param {?} directiveInstance\n * @return {?}\n */\nfunction findViaDirective(lView, directiveInstance) {\n    // if a directive is monkey patched then it will (by default)\n    // have a reference to the LView of the current view. The\n    // element bound to the directive being search lives somewhere\n    // in the view data. We loop through the nodes and check their\n    // list of directives for the instance.\n    /** @type {?} */\n    let tNode = lView[TVIEW].firstChild;\n    while (tNode) {\n        /** @type {?} */\n        const directiveIndexStart = tNode.directiveStart;\n        /** @type {?} */\n        const directiveIndexEnd = tNode.directiveEnd;\n        for (let i = directiveIndexStart; i < directiveIndexEnd; i++) {\n            if (lView[i] === directiveInstance) {\n                return tNode.index;\n            }\n        }\n        tNode = traverseNextElement(tNode);\n    }\n    return -1;\n}\n/**\n * Returns a list of directives extracted from the given view based on the\n * provided list of directive index values.\n *\n * @param {?} nodeIndex The node index\n * @param {?} lView The target view data\n * @param {?} includeComponents Whether or not to include components in returned directives\n * @return {?}\n */\nfunction getDirectivesAtNodeIndex(nodeIndex, lView, includeComponents) {\n    /** @type {?} */\n    const tNode = (/** @type {?} */ (lView[TVIEW].data[nodeIndex]));\n    /** @type {?} */\n    let directiveStartIndex = tNode.directiveStart;\n    if (directiveStartIndex == 0)\n        return EMPTY_ARRAY;\n    /** @type {?} */\n    const directiveEndIndex = tNode.directiveEnd;\n    if (!includeComponents && tNode.flags & 2 /* isComponentHost */)\n        directiveStartIndex++;\n    return lView.slice(directiveStartIndex, directiveEndIndex);\n}\n/**\n * @param {?} nodeIndex\n * @param {?} lView\n * @return {?}\n */\nfunction getComponentAtNodeIndex(nodeIndex, lView) {\n    /** @type {?} */\n    const tNode = (/** @type {?} */ (lView[TVIEW].data[nodeIndex]));\n    /** @type {?} */\n    let directiveStartIndex = tNode.directiveStart;\n    return tNode.flags & 2 /* isComponentHost */ ? lView[directiveStartIndex] : null;\n}\n/**\n * Returns a map of local references (local reference name => element or directive instance) that\n * exist on a given element.\n * @param {?} lView\n * @param {?} nodeIndex\n * @return {?}\n */\nfunction discoverLocalRefs(lView, nodeIndex) {\n    /** @type {?} */\n    const tNode = (/** @type {?} */ (lView[TVIEW].data[nodeIndex]));\n    if (tNode && tNode.localNames) {\n        /** @type {?} */\n        const result = {};\n        /** @type {?} */\n        let localIndex = tNode.index + 1;\n        for (let i = 0; i < tNode.localNames.length; i += 2) {\n            result[tNode.localNames[i]] = lView[localIndex];\n            localIndex++;\n        }\n        return result;\n    }\n    return null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Called when directives inject each other (creating a circular dependency)\n * @param {?} token\n * @return {?}\n */\nfunction throwCyclicDependencyError(token) {\n    throw new Error(`Cannot instantiate cyclic dependency! ${token}`);\n}\n/**\n * Called when there are multiple component selectors that match a given node\n * @param {?} tNode\n * @return {?}\n */\nfunction throwMultipleComponentError(tNode) {\n    throw new Error(`Multiple components match node with tagname ${tNode.tagName}`);\n}\n/**\n * @return {?}\n */\nfunction throwMixedMultiProviderError() {\n    throw new Error(`Cannot mix multi providers and regular providers`);\n}\n/**\n * @param {?=} ngModuleType\n * @param {?=} providers\n * @param {?=} provider\n * @return {?}\n */\nfunction throwInvalidProviderError(ngModuleType, providers, provider) {\n    /** @type {?} */\n    let ngModuleDetail = '';\n    if (ngModuleType && providers) {\n        /** @type {?} */\n        const providerDetail = providers.map((/**\n         * @param {?} v\n         * @return {?}\n         */\n        v => v == provider ? '?' + provider + '?' : '...'));\n        ngModuleDetail =\n            ` - only instances of Provider and Type are allowed, got: [${providerDetail.join(', ')}]`;\n    }\n    throw new Error(`Invalid provider for the NgModule '${stringify(ngModuleType)}'` + ngModuleDetail);\n}\n/**\n * Throws an ExpressionChangedAfterChecked error if checkNoChanges mode is on.\n * @param {?} creationMode\n * @param {?} oldValue\n * @param {?} currValue\n * @param {?=} propName\n * @return {?}\n */\nfunction throwErrorIfNoChangesMode(creationMode, oldValue, currValue, propName) {\n    /** @type {?} */\n    const field = propName ? ` for '${propName}'` : '';\n    /** @type {?} */\n    let msg = `ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value${field}: '${oldValue}'. Current value: '${currValue}'.`;\n    if (creationMode) {\n        msg +=\n            ` It seems like the view has been created after its parent and its children have been dirty checked.` +\n                ` Has it been created in a change detection hook?`;\n    }\n    // TODO: include debug context, see `viewDebugError` function in\n    // `packages/core/src/view/errors.ts` for reference.\n    throw new Error(msg);\n}\n/**\n * @param {?} lView\n * @param {?} rootIndex\n * @param {?} expressionIndex\n * @param {?} meta\n * @param {?} changedValue\n * @return {?}\n */\nfunction constructDetailsForInterpolation(lView, rootIndex, expressionIndex, meta, changedValue) {\n    const [propName, prefix, ...chunks] = meta.split(INTERPOLATION_DELIMITER);\n    /** @type {?} */\n    let oldValue = prefix;\n    /** @type {?} */\n    let newValue = prefix;\n    for (let i = 0; i < chunks.length; i++) {\n        /** @type {?} */\n        const slotIdx = rootIndex + i;\n        oldValue += `${lView[slotIdx]}${chunks[i]}`;\n        newValue += `${slotIdx === expressionIndex ? changedValue : lView[slotIdx]}${chunks[i]}`;\n    }\n    return { propName, oldValue, newValue };\n}\n/**\n * Constructs an object that contains details for the ExpressionChangedAfterItHasBeenCheckedError:\n * - property name (for property bindings or interpolations)\n * - old and new values, enriched using information from metadata\n *\n * More information on the metadata storage format can be found in `storePropertyBindingMetadata`\n * function description.\n * @param {?} lView\n * @param {?} bindingIndex\n * @param {?} oldValue\n * @param {?} newValue\n * @return {?}\n */\nfunction getExpressionChangedErrorDetails(lView, bindingIndex, oldValue, newValue) {\n    /** @type {?} */\n    const tData = lView[TVIEW].data;\n    /** @type {?} */\n    const metadata = tData[bindingIndex];\n    if (typeof metadata === 'string') {\n        // metadata for property interpolation\n        if (metadata.indexOf(INTERPOLATION_DELIMITER) > -1) {\n            return constructDetailsForInterpolation(lView, bindingIndex, bindingIndex, metadata, newValue);\n        }\n        // metadata for property binding\n        return { propName: metadata, oldValue, newValue };\n    }\n    // metadata is not available for this expression, check if this expression is a part of the\n    // property interpolation by going from the current binding index left and look for a string that\n    // contains INTERPOLATION_DELIMITER, the layout in tView.data for this case will look like this:\n    // [..., 'id�Prefix � and � suffix', null, null, null, ...]\n    if (metadata === null) {\n        /** @type {?} */\n        let idx = bindingIndex - 1;\n        while (typeof tData[idx] !== 'string' && tData[idx + 1] === null) {\n            idx--;\n        }\n        /** @type {?} */\n        const meta = tData[idx];\n        if (typeof meta === 'string') {\n            /** @type {?} */\n            const matches = meta.match(new RegExp(INTERPOLATION_DELIMITER, 'g'));\n            // first interpolation delimiter separates property name from interpolation parts (in case of\n            // property interpolations), so we subtract one from total number of found delimiters\n            if (matches && (matches.length - 1) > bindingIndex - idx) {\n                return constructDetailsForInterpolation(lView, idx, bindingIndex, meta, newValue);\n            }\n        }\n    }\n    return { propName: undefined, oldValue, newValue };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/node.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @enum {number} */\nconst TNodeType = {\n    /**\n     * The TNode contains information about an {@link LContainer} for embedded views.\n     */\n    Container: 0,\n    /**\n     * The TNode contains information about an `<ng-content>` projection\n     */\n    Projection: 1,\n    /**\n     * The TNode contains information about an {@link LView}\n     */\n    View: 2,\n    /**\n     * The TNode contains information about a DOM element aka {@link RNode}.\n     */\n    Element: 3,\n    /**\n     * The TNode contains information about an `<ng-container>` element {@link RNode}.\n     */\n    ElementContainer: 4,\n    /**\n     * The TNode contains information about an ICU comment used in `i18n`.\n     */\n    IcuContainer: 5,\n};\n/** @enum {number} */\nconst TNodeFlags = {\n    /** Bit #1 - This bit is set if the node is a host for any directive (including a component) */\n    isDirectiveHost: 1,\n    /**\n     * Bit #2 - This bit is set if the node is a host for a component.\n     *\n     * Setting this bit implies that the `isDirectiveHost` bit is set as well.\n     * */\n    isComponentHost: 2,\n    /** Bit #3 - This bit is set if the node has been projected */\n    isProjected: 4,\n    /** Bit #4 - This bit is set if any directive on this node has content queries */\n    hasContentQuery: 8,\n    /** Bit #5 - This bit is set if the node has any \"class\" inputs */\n    hasClassInput: 16,\n    /** Bit #6 - This bit is set if the node has any \"style\" inputs */\n    hasStyleInput: 32,\n    /** Bit #7 This bit is set if the node has been detached by i18n */\n    isDetached: 64,\n    /**\n     * Bit #8 - This bit is set if the node has directives with host bindings.\n     *\n     * This flags allows us to guard host-binding logic and invoke it only on nodes\n     * that actually have directives with host bindings.\n     */\n    hasHostBindings: 128,\n};\n/** @enum {number} */\nconst TNodeProviderIndexes = {\n    /** The index of the first provider on this node is encoded on the least significant bits */\n    ProvidersStartIndexMask: 65535,\n    /**\n       The count of view providers from the component on this node is encoded on the 16 most\n       significant bits\n     */\n    CptViewProvidersCountShift: 16,\n    CptViewProvidersCountShifter: 65536,\n};\n/** @enum {number} */\nconst AttributeMarker = {\n    /**\n     * An implicit marker which indicates that the value in the array are of `attributeKey`,\n     * `attributeValue` format.\n     *\n     * NOTE: This is implicit as it is the type when no marker is present in array. We indicate that\n     * it should not be present at runtime by the negative number.\n     */\n    ImplicitAttributes: -1,\n    /**\n     * Marker indicates that the following 3 values in the attributes array are:\n     * namespaceUri, attributeName, attributeValue\n     * in that order.\n     */\n    NamespaceURI: 0,\n    /**\n     * Signals class declaration.\n     *\n     * Each value following `Classes` designates a class name to include on the element.\n     * ## Example:\n     *\n     * Given:\n     * ```\n     * <div class=\"foo bar baz\">...<d/vi>\n     * ```\n     *\n     * the generated code is:\n     * ```\n     * var _c1 = [AttributeMarker.Classes, 'foo', 'bar', 'baz'];\n     * ```\n     */\n    Classes: 1,\n    /**\n     * Signals style declaration.\n     *\n     * Each pair of values following `Styles` designates a style name and value to include on the\n     * element.\n     * ## Example:\n     *\n     * Given:\n     * ```\n     * <div style=\"width:100px; height:200px; color:red\">...</div>\n     * ```\n     *\n     * the generated code is:\n     * ```\n     * var _c1 = [AttributeMarker.Styles, 'width', '100px', 'height'. '200px', 'color', 'red'];\n     * ```\n     */\n    Styles: 2,\n    /**\n     * Signals that the following attribute names were extracted from input or output bindings.\n     *\n     * For example, given the following HTML:\n     *\n     * ```\n     * <div moo=\"car\" [foo]=\"exp\" (bar)=\"doSth()\">\n     * ```\n     *\n     * the generated code is:\n     *\n     * ```\n     * var _c1 = ['moo', 'car', AttributeMarker.Bindings, 'foo', 'bar'];\n     * ```\n     */\n    Bindings: 3,\n    /**\n     * Signals that the following attribute names were hoisted from an inline-template declaration.\n     *\n     * For example, given the following HTML:\n     *\n     * ```\n     * <div *ngFor=\"let value of values; trackBy:trackBy\" dirA [dirB]=\"value\">\n     * ```\n     *\n     * the generated code for the `template()` instruction would include:\n     *\n     * ```\n     * ['dirA', '', AttributeMarker.Bindings, 'dirB', AttributeMarker.Template, 'ngFor', 'ngForOf',\n     * 'ngForTrackBy', 'let-value']\n     * ```\n     *\n     * while the generated code for the `element()` instruction inside the template function would\n     * include:\n     *\n     * ```\n     * ['dirA', '', AttributeMarker.Bindings, 'dirB']\n     * ```\n     */\n    Template: 4,\n    /**\n     * Signals that the following attribute is `ngProjectAs` and its value is a parsed `CssSelector`.\n     *\n     * For example, given the following HTML:\n     *\n     * ```\n     * <h1 attr=\"value\" ngProjectAs=\"[title]\">\n     * ```\n     *\n     * the generated code for the `element()` instruction would include:\n     *\n     * ```\n     * ['attr', 'value', AttributeMarker.ProjectAs, ['', 'title', '']]\n     * ```\n     */\n    ProjectAs: 5,\n    /**\n     * Signals that the following attribute will be translated by runtime i18n\n     *\n     * For example, given the following HTML:\n     *\n     * ```\n     * <div moo=\"car\" foo=\"value\" i18n-foo [bar]=\"binding\" i18n-bar>\n     * ```\n     *\n     * the generated code is:\n     *\n     * ```\n     * var _c1 = ['moo', 'car', AttributeMarker.I18n, 'foo', 'bar'];\n     */\n    I18n: 6,\n};\n/**\n * Binding data (flyweight) for a particular node that is shared between all templates\n * of a specific type.\n *\n * If a property is:\n *    - PropertyAliases: that property's data was generated and this is it\n *    - Null: that property's data was already generated and nothing was found.\n *    - Undefined: that property's data has not yet been generated\n *\n * see: https://en.wikipedia.org/wiki/Flyweight_pattern for more on the Flyweight pattern\n * @record\n */\nfunction TNode() { }\nif (false) {\n    /**\n     * The type of the TNode. See TNodeType.\n     * @type {?}\n     */\n    TNode.prototype.type;\n    /**\n     * Index of the TNode in TView.data and corresponding native element in LView.\n     *\n     * This is necessary to get from any TNode to its corresponding native element when\n     * traversing the node tree.\n     *\n     * If index is -1, this is a dynamically created container node or embedded view node.\n     * @type {?}\n     */\n    TNode.prototype.index;\n    /**\n     * The index of the closest injector in this node's LView.\n     *\n     * If the index === -1, there is no injector on this node or any ancestor node in this view.\n     *\n     * If the index !== -1, it is the index of this node's injector OR the index of a parent injector\n     * in the same view. We pass the parent injector index down the node tree of a view so it's\n     * possible to find the parent injector without walking a potentially deep node tree. Injector\n     * indices are not set across view boundaries because there could be multiple component hosts.\n     *\n     * If tNode.injectorIndex === tNode.parent.injectorIndex, then the index belongs to a parent\n     * injector.\n     * @type {?}\n     */\n    TNode.prototype.injectorIndex;\n    /**\n     * Stores starting index of the directives.\n     * @type {?}\n     */\n    TNode.prototype.directiveStart;\n    /**\n     * Stores final exclusive index of the directives.\n     * @type {?}\n     */\n    TNode.prototype.directiveEnd;\n    /**\n     * Stores the last directive which had a styling instruction.\n     *\n     * Initial value of this is `-1` which means that no `hostBindings` styling instruction has\n     * executed. As `hostBindings` instructions execute they set the value to the index of the\n     * `DirectiveDef` which contained the last `hostBindings` styling instruction.\n     *\n     * Valid values are:\n     * - `-1` No `hostBindings` instruction has executed.\n     * - `directiveStart <= directiveStylingLast < directiveEnd`: Points to the `DirectiveDef` of the\n     *   last styling instruction which executed in the `hostBindings`.\n     *\n     * This data is needed so that styling instructions know which static styling data needs to be\n     * collected from the `DirectiveDef.hostAttrs`. A styling instruction needs to collect all data\n     * since last styling instruction.\n     * @type {?}\n     */\n    TNode.prototype.directiveStylingLast;\n    /**\n     * Stores indexes of property bindings. This field is only set in the ngDevMode and holds indexes\n     * of property bindings so TestBed can get bound property metadata for a given node.\n     * @type {?}\n     */\n    TNode.prototype.propertyBindings;\n    /**\n     * Stores if Node isComponent, isProjected, hasContentQuery, hasClassInput and hasStyleInput etc.\n     * @type {?}\n     */\n    TNode.prototype.flags;\n    /**\n     * This number stores two values using its bits:\n     *\n     * - the index of the first provider on that node (first 16 bits)\n     * - the count of view providers from the component on this node (last 16 bits)\n     * @type {?}\n     */\n    TNode.prototype.providerIndexes;\n    /**\n     * The tag name associated with this node.\n     * @type {?}\n     */\n    TNode.prototype.tagName;\n    /**\n     * Attributes associated with an element. We need to store attributes to support various use-cases\n     * (attribute injection, content projection with selectors, directives matching).\n     * Attributes are stored statically because reading them from the DOM would be way too slow for\n     * content projection and queries.\n     *\n     * Since attrs will always be calculated first, they will never need to be marked undefined by\n     * other instructions.\n     *\n     * For regular attributes a name of an attribute and its value alternate in the array.\n     * e.g. ['role', 'checkbox']\n     * This array can contain flags that will indicate \"special attributes\" (attributes with\n     * namespaces, attributes extracted from bindings and outputs).\n     * @type {?}\n     */\n    TNode.prototype.attrs;\n    /**\n     * Same as `TNode.attrs` but contains merged data across all directive host bindings.\n     *\n     * We need to keep `attrs` as unmerged so that it can be used for attribute selectors.\n     * We merge attrs here so that it can be used in a performant way for initial rendering.\n     *\n     * The `attrs` are merged in first pass in following order:\n     * - Component's `hostAttrs`\n     * - Directives' `hostAttrs`\n     * - Template `TNode.attrs` associated with the current `TNode`.\n     * @type {?}\n     */\n    TNode.prototype.mergedAttrs;\n    /**\n     * A set of local names under which a given element is exported in a template and\n     * visible to queries. An entry in this array can be created for different reasons:\n     * - an element itself is referenced, ex.: `<div #foo>`\n     * - a component is referenced, ex.: `<my-cmpt #foo>`\n     * - a directive is referenced, ex.: `<my-cmpt #foo=\"directiveExportAs\">`.\n     *\n     * A given element might have different local names and those names can be associated\n     * with a directive. We store local names at even indexes while odd indexes are reserved\n     * for directive index in a view (or `-1` if there is no associated directive).\n     *\n     * Some examples:\n     * - `<div #foo>` => `[\"foo\", -1]`\n     * - `<my-cmpt #foo>` => `[\"foo\", myCmptIdx]`\n     * - `<my-cmpt #foo #bar=\"directiveExportAs\">` => `[\"foo\", myCmptIdx, \"bar\", directiveIdx]`\n     * - `<div #foo #bar=\"directiveExportAs\">` => `[\"foo\", -1, \"bar\", directiveIdx]`\n     * @type {?}\n     */\n    TNode.prototype.localNames;\n    /**\n     * Information about input properties that need to be set once from attribute data.\n     * @type {?}\n     */\n    TNode.prototype.initialInputs;\n    /**\n     * Input data for all directives on this node. `null` means that there are no directives with\n     * inputs on this node.\n     * @type {?}\n     */\n    TNode.prototype.inputs;\n    /**\n     * Output data for all directives on this node. `null` means that there are no directives with\n     * outputs on this node.\n     * @type {?}\n     */\n    TNode.prototype.outputs;\n    /**\n     * The TView or TViews attached to this node.\n     *\n     * If this TNode corresponds to an LContainer with inline views, the container will\n     * need to store separate static data for each of its view blocks (TView[]). Otherwise,\n     * nodes in inline views with the same index as nodes in their parent views will overwrite\n     * each other, as they are in the same template.\n     *\n     * Each index in this array corresponds to the static data for a certain\n     * view. So if you had V(0) and V(1) in a container, you might have:\n     *\n     * [\n     *   [{tagName: 'div', attrs: ...}, null],     // V(0) TView\n     *   [{tagName: 'button', attrs ...}, null]    // V(1) TView\n     *\n     * If this TNode corresponds to an LContainer with a template (e.g. structural\n     * directive), the template's TView will be stored here.\n     *\n     * If this TNode corresponds to an element, tViews will be null .\n     * @type {?}\n     */\n    TNode.prototype.tViews;\n    /**\n     * The next sibling node. Necessary so we can propagate through the root nodes of a view\n     * to insert them or remove them from the DOM.\n     * @type {?}\n     */\n    TNode.prototype.next;\n    /**\n     * The next projected sibling. Since in Angular content projection works on the node-by-node basis\n     * the act of projecting nodes might change nodes relationship at the insertion point (target\n     * view). At the same time we need to keep initial relationship between nodes as expressed in\n     * content view.\n     * @type {?}\n     */\n    TNode.prototype.projectionNext;\n    /**\n     * First child of the current node.\n     *\n     * For component nodes, the child will always be a ContentChild (in same view).\n     * For embedded view nodes, the child will be in their child view.\n     * @type {?}\n     */\n    TNode.prototype.child;\n    /**\n     * Parent node (in the same view only).\n     *\n     * We need a reference to a node's parent so we can append the node to its parent's native\n     * element at the appropriate time.\n     *\n     * If the parent would be in a different view (e.g. component host), this property will be null.\n     * It's important that we don't try to cross component boundaries when retrieving the parent\n     * because the parent will change (e.g. index, attrs) depending on where the component was\n     * used (and thus shouldn't be stored on TNode). In these cases, we retrieve the parent through\n     * LView.node instead (which will be instance-specific).\n     *\n     * If this is an inline view node (V), the parent will be its container.\n     * @type {?}\n     */\n    TNode.prototype.parent;\n    /**\n     * List of projected TNodes for a given component host element OR index into the said nodes.\n     *\n     * For easier discussion assume this example:\n     * `<parent>`'s view definition:\n     * ```\n     * <child id=\"c1\">content1</child>\n     * <child id=\"c2\"><span>content2</span></child>\n     * ```\n     * `<child>`'s view definition:\n     * ```\n     * <ng-content id=\"cont1\"></ng-content>\n     * ```\n     *\n     * If `Array.isArray(projection)` then `TNode` is a host element:\n     * - `projection` stores the content nodes which are to be projected.\n     *    - The nodes represent categories defined by the selector: For example:\n     *      `<ng-content/><ng-content select=\"abc\"/>` would represent the heads for `<ng-content/>`\n     *      and `<ng-content select=\"abc\"/>` respectively.\n     *    - The nodes we store in `projection` are heads only, we used `.next` to get their\n     *      siblings.\n     *    - The nodes `.next` is sorted/rewritten as part of the projection setup.\n     *    - `projection` size is equal to the number of projections `<ng-content>`. The size of\n     *      `c1` will be `1` because `<child>` has only one `<ng-content>`.\n     * - we store `projection` with the host (`c1`, `c2`) rather than the `<ng-content>` (`cont1`)\n     *   because the same component (`<child>`) can be used in multiple locations (`c1`, `c2`) and as\n     *   a result have different set of nodes to project.\n     * - without `projection` it would be difficult to efficiently traverse nodes to be projected.\n     *\n     * If `typeof projection == 'number'` then `TNode` is a `<ng-content>` element:\n     * - `projection` is an index of the host's `projection`Nodes.\n     *   - This would return the first head node to project:\n     *     `getHost(currentTNode).projection[currentTNode.projection]`.\n     * - When projecting nodes the parent node retrieved may be a `<ng-content>` node, in which case\n     *   the process is recursive in nature.\n     *\n     * If `projection` is of type `RNode[][]` than we have a collection of native nodes passed as\n     * projectable nodes during dynamic component creation.\n     * @type {?}\n     */\n    TNode.prototype.projection;\n    /**\n     * A collection of all `style` static values for an element (including from host).\n     *\n     * This field will be populated if and when:\n     *\n     * - There are one or more initial `style`s on an element (e.g. `<div style=\"width:200px;\">`)\n     * - There are one or more initial `style`s on a directive/component host\n     *   (e.g. `\\@Directive({host: {style: \"width:200px;\" } }`)\n     * @type {?}\n     */\n    TNode.prototype.styles;\n    /**\n     * A collection of all `style` static values for an element excluding host sources.\n     *\n     * Populated when there are one or more initial `style`s on an element\n     * (e.g. `<div style=\"width:200px;\">`)\n     * Must be stored separately from `tNode.styles` to facilitate setting directive\n     * inputs that shadow the `style` property. If we used `tNode.styles` as is for shadowed inputs,\n     * we would feed host styles back into directives as \"inputs\". If we used `tNode.attrs`, we would\n     * have to concatenate the attributes on every template pass. Instead, we process once on first\n     * create pass and store here.\n     * @type {?}\n     */\n    TNode.prototype.stylesWithoutHost;\n    /**\n     * A `KeyValueArray` version of residual `styles`.\n     *\n     * When there are styling instructions than each instruction stores the static styling\n     * which is of lower priority than itself. This means that there may be a higher priority styling\n     * than the instruction.\n     *\n     * Imagine:\n     * ```\n     * <div style=\"color: highest;\" my-dir>\n     *\n     * \\@Directive({\n     *   host: {\n     *     style: 'color: lowest; ',\n     *     '[styles.color]': 'exp' // ɵɵstyleProp('color', ctx.exp);\n     *   }\n     * })\n     * ```\n     *\n     * In the above case:\n     * - `color: lowest` is stored with `ɵɵstyleProp('color', ctx.exp);` instruction\n     * -  `color: highest` is the residual and is stored here.\n     *\n     * - `undefined': not initialized.\n     * - `null`: initialized but `styles` is `null`\n     * - `KeyValueArray`: parsed version of `styles`.\n     * @type {?}\n     */\n    TNode.prototype.residualStyles;\n    /**\n     * A collection of all class static values for an element (including from host).\n     *\n     * This field will be populated if and when:\n     *\n     * - There are one or more initial classes on an element (e.g. `<div class=\"one two three\">`)\n     * - There are one or more initial classes on an directive/component host\n     *   (e.g. `\\@Directive({host: {class: \"SOME_CLASS\" } }`)\n     * @type {?}\n     */\n    TNode.prototype.classes;\n    /**\n     * A collection of all class static values for an element excluding host sources.\n     *\n     * Populated when there are one or more initial classes on an element\n     * (e.g. `<div class=\"SOME_CLASS\">`)\n     * Must be stored separately from `tNode.classes` to facilitate setting directive\n     * inputs that shadow the `class` property. If we used `tNode.classes` as is for shadowed inputs,\n     * we would feed host classes back into directives as \"inputs\". If we used `tNode.attrs`, we would\n     * have to concatenate the attributes on every template pass. Instead, we process once on first\n     * create pass and store here.\n     * @type {?}\n     */\n    TNode.prototype.classesWithoutHost;\n    /**\n     * A `KeyValueArray` version of residual `classes`.\n     *\n     * Same as `TNode.residualStyles` but for classes.\n     *\n     * - `undefined': not initialized.\n     * - `null`: initialized but `classes` is `null`\n     * - `KeyValueArray`: parsed version of `classes`.\n     * @type {?}\n     */\n    TNode.prototype.residualClasses;\n    /**\n     * Stores the head/tail index of the class bindings.\n     *\n     * - If no bindings, the head and tail will both be 0.\n     * - If there are template bindings, stores the head/tail of the class bindings in the template.\n     * - If no template bindings but there are host bindings, the head value will point to the last\n     *   host binding for \"class\" (not the head of the linked list), tail will be 0.\n     *\n     * See: `style_binding_list.ts` for details.\n     *\n     * This is used by `insertTStylingBinding` to know where the next styling binding should be\n     * inserted so that they can be sorted in priority order.\n     * @type {?}\n     */\n    TNode.prototype.classBindings;\n    /**\n     * Stores the head/tail index of the class bindings.\n     *\n     * - If no bindings, the head and tail will both be 0.\n     * - If there are template bindings, stores the head/tail of the style bindings in the template.\n     * - If no template bindings but there are host bindings, the head value will point to the last\n     *   host binding for \"style\" (not the head of the linked list), tail will be 0.\n     *\n     * See: `style_binding_list.ts` for details.\n     *\n     * This is used by `insertTStylingBinding` to know where the next styling binding should be\n     * inserted so that they can be sorted in priority order.\n     * @type {?}\n     */\n    TNode.prototype.styleBindings;\n}\n/**\n * Static data for an element\n * @record\n */\nfunction TElementNode() { }\nif (false) {\n    /**\n     * Index in the data[] array\n     * @type {?}\n     */\n    TElementNode.prototype.index;\n    /** @type {?} */\n    TElementNode.prototype.child;\n    /**\n     * Element nodes will have parents unless they are the first node of a component or\n     * embedded view (which means their parent is in a different view and must be\n     * retrieved using viewData[HOST_NODE]).\n     * @type {?}\n     */\n    TElementNode.prototype.parent;\n    /** @type {?} */\n    TElementNode.prototype.tViews;\n    /**\n     * If this is a component TNode with projection, this will be an array of projected\n     * TNodes or native nodes (see TNode.projection for more info). If it's a regular element node or\n     * a component without projection, it will be null.\n     * @type {?}\n     */\n    TElementNode.prototype.projection;\n}\n/**\n * Static data for a text node\n * @record\n */\nfunction TTextNode() { }\nif (false) {\n    /**\n     * Index in the data[] array\n     * @type {?}\n     */\n    TTextNode.prototype.index;\n    /** @type {?} */\n    TTextNode.prototype.child;\n    /**\n     * Text nodes will have parents unless they are the first node of a component or\n     * embedded view (which means their parent is in a different view and must be\n     * retrieved using LView.node).\n     * @type {?}\n     */\n    TTextNode.prototype.parent;\n    /** @type {?} */\n    TTextNode.prototype.tViews;\n    /** @type {?} */\n    TTextNode.prototype.projection;\n}\n/**\n * Static data for an LContainer\n * @record\n */\nfunction TContainerNode() { }\nif (false) {\n    /**\n     * Index in the data[] array.\n     *\n     * If it's -1, this is a dynamically created container node that isn't stored in\n     * data[] (e.g. when you inject ViewContainerRef) .\n     * @type {?}\n     */\n    TContainerNode.prototype.index;\n    /** @type {?} */\n    TContainerNode.prototype.child;\n    /**\n     * Container nodes will have parents unless:\n     *\n     * - They are the first node of a component or embedded view\n     * - They are dynamically created\n     * @type {?}\n     */\n    TContainerNode.prototype.parent;\n    /** @type {?} */\n    TContainerNode.prototype.tViews;\n    /** @type {?} */\n    TContainerNode.prototype.projection;\n}\n/**\n * Static data for an <ng-container>\n * @record\n */\nfunction TElementContainerNode() { }\nif (false) {\n    /**\n     * Index in the LView[] array.\n     * @type {?}\n     */\n    TElementContainerNode.prototype.index;\n    /** @type {?} */\n    TElementContainerNode.prototype.child;\n    /** @type {?} */\n    TElementContainerNode.prototype.parent;\n    /** @type {?} */\n    TElementContainerNode.prototype.tViews;\n    /** @type {?} */\n    TElementContainerNode.prototype.projection;\n}\n/**\n * Static data for an ICU expression\n * @record\n */\nfunction TIcuContainerNode() { }\nif (false) {\n    /**\n     * Index in the LView[] array.\n     * @type {?}\n     */\n    TIcuContainerNode.prototype.index;\n    /** @type {?} */\n    TIcuContainerNode.prototype.child;\n    /** @type {?} */\n    TIcuContainerNode.prototype.parent;\n    /** @type {?} */\n    TIcuContainerNode.prototype.tViews;\n    /** @type {?} */\n    TIcuContainerNode.prototype.projection;\n    /**\n     * Indicates the current active case for an ICU expression.\n     * It is null when there is no active case.\n     * @type {?}\n     */\n    TIcuContainerNode.prototype.activeCaseIndex;\n}\n/**\n * Static data for a view\n * @record\n */\nfunction TViewNode() { }\nif (false) {\n    /**\n     * If -1, it's a dynamically created view. Otherwise, it is the view block ID.\n     * @type {?}\n     */\n    TViewNode.prototype.index;\n    /** @type {?} */\n    TViewNode.prototype.child;\n    /** @type {?} */\n    TViewNode.prototype.parent;\n    /** @type {?} */\n    TViewNode.prototype.tViews;\n    /** @type {?} */\n    TViewNode.prototype.projection;\n}\n/**\n * Static data for an LProjectionNode\n * @record\n */\nfunction TProjectionNode() { }\nif (false) {\n    /**\n     * Index in the data[] array\n     * @type {?}\n     */\n    TProjectionNode.prototype.child;\n    /**\n     * Projection nodes will have parents unless they are the first node of a component\n     * or embedded view (which means their parent is in a different view and must be\n     * retrieved using LView.node).\n     * @type {?}\n     */\n    TProjectionNode.prototype.parent;\n    /** @type {?} */\n    TProjectionNode.prototype.tViews;\n    /**\n     * Index of the projection node. (See TNode.projection for more info.)\n     * @type {?}\n     */\n    TProjectionNode.prototype.projection;\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$4 = 1;\n/**\n * Returns `true` if the `TNode` has a directive which has `\\@Input()` for `class` binding.\n *\n * ```\n * <div my-dir [class]=\"exp\"></div>\n * ```\n * and\n * ```\n * \\@Directive({\n * })\n * class MyDirective {\n * \\@Input()\n *   class: string;\n * }\n * ```\n *\n * In the above case it is necessary to write the reconciled styling information into the\n * directive's input.\n *\n * @param {?} tNode\n * @return {?}\n */\nfunction hasClassInput(tNode) {\n    return (tNode.flags & 16 /* hasClassInput */) !== 0;\n}\n/**\n * Returns `true` if the `TNode` has a directive which has `\\@Input()` for `style` binding.\n *\n * ```\n * <div my-dir [style]=\"exp\"></div>\n * ```\n * and\n * ```\n * \\@Directive({\n * })\n * class MyDirective {\n * \\@Input()\n *   class: string;\n * }\n * ```\n *\n * In the above case it is necessary to write the reconciled styling information into the\n * directive's input.\n *\n * @param {?} tNode\n * @return {?}\n */\nfunction hasStyleInput(tNode) {\n    return (tNode.flags & 32 /* hasStyleInput */) !== 0;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/projection.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst SelectorFlags = {\n    /** Indicates this is the beginning of a new negative selector */\n    NOT: 1,\n    /** Mode for matching attributes */\n    ATTRIBUTE: 2,\n    /** Mode for matching tag names */\n    ELEMENT: 4,\n    /** Mode for matching class names */\n    CLASS: 8,\n};\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$5 = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/styling/class_differ.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Returns an index of `classToSearch` in `className` taking token boundaries into account.\n *\n * `classIndexOf('AB A', 'A', 0)` will be 3 (not 0 since `AB!==A`)\n *\n * @param {?} className A string containing classes (whitespace separated)\n * @param {?} classToSearch A class name to locate\n * @param {?} startingIndex Starting location of search\n * @return {?} an index of the located class (or -1 if not found)\n */\nfunction classIndexOf(className, classToSearch, startingIndex) {\n    ngDevMode && assertNotEqual(classToSearch, '', 'can not look for \"\" string.');\n    /** @type {?} */\n    let end = className.length;\n    while (true) {\n        /** @type {?} */\n        const foundIndex = className.indexOf(classToSearch, startingIndex);\n        if (foundIndex === -1)\n            return foundIndex;\n        if (foundIndex === 0 || className.charCodeAt(foundIndex - 1) <= 32 /* SPACE */) {\n            // Ensure that it has leading whitespace\n            /** @type {?} */\n            const length = classToSearch.length;\n            if (foundIndex + length === end ||\n                className.charCodeAt(foundIndex + length) <= 32 /* SPACE */) {\n                // Ensure that it has trailing whitespace\n                return foundIndex;\n            }\n        }\n        // False positive, keep searching from where we left off.\n        startingIndex = foundIndex + 1;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/node_selector_matcher.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst unusedValueToPlacateAjd = unusedValueExportToPlacateAjd$4 + unusedValueExportToPlacateAjd$5;\n/** @type {?} */\nconst NG_TEMPLATE_SELECTOR = 'ng-template';\n/**\n * Search the `TAttributes` to see if it contains `cssClassToMatch` (case insensitive)\n *\n * @param {?} attrs `TAttributes` to search through.\n * @param {?} cssClassToMatch class to match (lowercase)\n * @param {?} isProjectionMode Whether or not class matching should look into the attribute `class` in\n *    addition to the `AttributeMarker.Classes`.\n * @return {?}\n */\nfunction isCssClassMatching(attrs, cssClassToMatch, isProjectionMode) {\n    // TODO(misko): The fact that this function needs to know about `isProjectionMode` seems suspect.\n    // It is strange to me that sometimes the class information comes in form of `class` attribute\n    // and sometimes in form of `AttributeMarker.Classes`. Some investigation is needed to determine\n    // if that is the right behavior.\n    ngDevMode &&\n        assertEqual(cssClassToMatch, cssClassToMatch.toLowerCase(), 'Class name expected to be lowercase.');\n    /** @type {?} */\n    let i = 0;\n    while (i < attrs.length) {\n        /** @type {?} */\n        let item = attrs[i++];\n        if (isProjectionMode && item === 'class') {\n            item = (/** @type {?} */ (attrs[i]));\n            if (classIndexOf(item.toLowerCase(), cssClassToMatch, 0) !== -1) {\n                return true;\n            }\n        }\n        else if (item === 1 /* Classes */) {\n            // We found the classes section. Start searching for the class.\n            while (i < attrs.length && typeof (item = attrs[i++]) == 'string') {\n                // while we have strings\n                if (item.toLowerCase() === cssClassToMatch)\n                    return true;\n            }\n            return false;\n        }\n    }\n    return false;\n}\n/**\n * Checks whether the `tNode` represents an inline template (e.g. `*ngFor`).\n *\n * @param {?} tNode current TNode\n * @return {?}\n */\nfunction isInlineTemplate(tNode) {\n    return tNode.type === 0 /* Container */ && tNode.tagName !== NG_TEMPLATE_SELECTOR;\n}\n/**\n * Function that checks whether a given tNode matches tag-based selector and has a valid type.\n *\n * Matching can be performed in 2 modes: projection mode (when we project nodes) and regular\n * directive matching mode:\n * - in the \"directive matching\" mode we do _not_ take TContainer's tagName into account if it is\n * different from NG_TEMPLATE_SELECTOR (value different from NG_TEMPLATE_SELECTOR indicates that a\n * tag name was extracted from * syntax so we would match the same directive twice);\n * - in the \"projection\" mode, we use a tag name potentially extracted from the * syntax processing\n * (applicable to TNodeType.Container only).\n * @param {?} tNode\n * @param {?} currentSelector\n * @param {?} isProjectionMode\n * @return {?}\n */\nfunction hasTagAndTypeMatch(tNode, currentSelector, isProjectionMode) {\n    /** @type {?} */\n    const tagNameToCompare = tNode.type === 0 /* Container */ && !isProjectionMode ?\n        NG_TEMPLATE_SELECTOR :\n        tNode.tagName;\n    return currentSelector === tagNameToCompare;\n}\n/**\n * A utility function to match an Ivy node static data against a simple CSS selector\n *\n * @param {?} tNode\n * @param {?} selector The selector to try matching against the node.\n * @param {?} isProjectionMode if `true` we are matching for content projection, otherwise we are doing\n * directive matching.\n * @return {?} true if node matches the selector.\n */\nfunction isNodeMatchingSelector(tNode, selector, isProjectionMode) {\n    ngDevMode && assertDefined(selector[0], 'Selector should have a tag name');\n    /** @type {?} */\n    let mode = 4 /* ELEMENT */;\n    /** @type {?} */\n    const nodeAttrs = tNode.attrs || [];\n    // Find the index of first attribute that has no value, only a name.\n    /** @type {?} */\n    const nameOnlyMarkerIdx = getNameOnlyMarkerIndex(nodeAttrs);\n    // When processing \":not\" selectors, we skip to the next \":not\" if the\n    // current one doesn't match\n    /** @type {?} */\n    let skipToNextSelector = false;\n    for (let i = 0; i < selector.length; i++) {\n        /** @type {?} */\n        const current = selector[i];\n        if (typeof current === 'number') {\n            // If we finish processing a :not selector and it hasn't failed, return false\n            if (!skipToNextSelector && !isPositive(mode) && !isPositive(current)) {\n                return false;\n            }\n            // If we are skipping to the next :not() and this mode flag is positive,\n            // it's a part of the current :not() selector, and we should keep skipping\n            if (skipToNextSelector && isPositive(current))\n                continue;\n            skipToNextSelector = false;\n            mode = ((/** @type {?} */ (current))) | (mode & 1 /* NOT */);\n            continue;\n        }\n        if (skipToNextSelector)\n            continue;\n        if (mode & 4 /* ELEMENT */) {\n            mode = 2 /* ATTRIBUTE */ | mode & 1 /* NOT */;\n            if (current !== '' && !hasTagAndTypeMatch(tNode, current, isProjectionMode) ||\n                current === '' && selector.length === 1) {\n                if (isPositive(mode))\n                    return false;\n                skipToNextSelector = true;\n            }\n        }\n        else {\n            /** @type {?} */\n            const selectorAttrValue = mode & 8 /* CLASS */ ? current : selector[++i];\n            // special case for matching against classes when a tNode has been instantiated with\n            // class and style values as separate attribute values (e.g. ['title', CLASS, 'foo'])\n            if ((mode & 8 /* CLASS */) && tNode.attrs !== null) {\n                if (!isCssClassMatching(tNode.attrs, (/** @type {?} */ (selectorAttrValue)), isProjectionMode)) {\n                    if (isPositive(mode))\n                        return false;\n                    skipToNextSelector = true;\n                }\n                continue;\n            }\n            /** @type {?} */\n            const attrName = (mode & 8 /* CLASS */) ? 'class' : current;\n            /** @type {?} */\n            const attrIndexInNode = findAttrIndexInNode(attrName, nodeAttrs, isInlineTemplate(tNode), isProjectionMode);\n            if (attrIndexInNode === -1) {\n                if (isPositive(mode))\n                    return false;\n                skipToNextSelector = true;\n                continue;\n            }\n            if (selectorAttrValue !== '') {\n                /** @type {?} */\n                let nodeAttrValue;\n                if (attrIndexInNode > nameOnlyMarkerIdx) {\n                    nodeAttrValue = '';\n                }\n                else {\n                    ngDevMode &&\n                        assertNotEqual(nodeAttrs[attrIndexInNode], 0 /* NamespaceURI */, 'We do not match directives on namespaced attributes');\n                    // we lowercase the attribute value to be able to match\n                    // selectors without case-sensitivity\n                    // (selectors are already in lowercase when generated)\n                    nodeAttrValue = ((/** @type {?} */ (nodeAttrs[attrIndexInNode + 1]))).toLowerCase();\n                }\n                /** @type {?} */\n                const compareAgainstClassName = mode & 8 /* CLASS */ ? nodeAttrValue : null;\n                if (compareAgainstClassName &&\n                    classIndexOf(compareAgainstClassName, (/** @type {?} */ (selectorAttrValue)), 0) !== -1 ||\n                    mode & 2 /* ATTRIBUTE */ && selectorAttrValue !== nodeAttrValue) {\n                    if (isPositive(mode))\n                        return false;\n                    skipToNextSelector = true;\n                }\n            }\n        }\n    }\n    return isPositive(mode) || skipToNextSelector;\n}\n/**\n * @param {?} mode\n * @return {?}\n */\nfunction isPositive(mode) {\n    return (mode & 1 /* NOT */) === 0;\n}\n/**\n * Examines the attribute's definition array for a node to find the index of the\n * attribute that matches the given `name`.\n *\n * NOTE: This will not match namespaced attributes.\n *\n * Attribute matching depends upon `isInlineTemplate` and `isProjectionMode`.\n * The following table summarizes which types of attributes we attempt to match:\n *\n * ===========================================================================================================\n * Modes                   | Normal Attributes | Bindings Attributes | Template Attributes | I18n\n * Attributes\n * ===========================================================================================================\n * Inline + Projection     | YES               | YES                 | NO                  | YES\n * -----------------------------------------------------------------------------------------------------------\n * Inline + Directive      | NO                | NO                  | YES                 | NO\n * -----------------------------------------------------------------------------------------------------------\n * Non-inline + Projection | YES               | YES                 | NO                  | YES\n * -----------------------------------------------------------------------------------------------------------\n * Non-inline + Directive  | YES               | YES                 | NO                  | YES\n * ===========================================================================================================\n *\n * @param {?} name the name of the attribute to find\n * @param {?} attrs the attribute array to examine\n * @param {?} isInlineTemplate true if the node being matched is an inline template (e.g. `*ngFor`)\n * rather than a manually expanded template node (e.g `<ng-template>`).\n * @param {?} isProjectionMode true if we are matching against content projection otherwise we are\n * matching against directives.\n * @return {?}\n */\nfunction findAttrIndexInNode(name, attrs, isInlineTemplate, isProjectionMode) {\n    if (attrs === null)\n        return -1;\n    /** @type {?} */\n    let i = 0;\n    if (isProjectionMode || !isInlineTemplate) {\n        /** @type {?} */\n        let bindingsMode = false;\n        while (i < attrs.length) {\n            /** @type {?} */\n            const maybeAttrName = attrs[i];\n            if (maybeAttrName === name) {\n                return i;\n            }\n            else if (maybeAttrName === 3 /* Bindings */ || maybeAttrName === 6 /* I18n */) {\n                bindingsMode = true;\n            }\n            else if (maybeAttrName === 1 /* Classes */ || maybeAttrName === 2 /* Styles */) {\n                /** @type {?} */\n                let value = attrs[++i];\n                // We should skip classes here because we have a separate mechanism for\n                // matching classes in projection mode.\n                while (typeof value === 'string') {\n                    value = attrs[++i];\n                }\n                continue;\n            }\n            else if (maybeAttrName === 4 /* Template */) {\n                // We do not care about Template attributes in this scenario.\n                break;\n            }\n            else if (maybeAttrName === 0 /* NamespaceURI */) {\n                // Skip the whole namespaced attribute and value. This is by design.\n                i += 4;\n                continue;\n            }\n            // In binding mode there are only names, rather than name-value pairs.\n            i += bindingsMode ? 1 : 2;\n        }\n        // We did not match the attribute\n        return -1;\n    }\n    else {\n        return matchTemplateAttribute(attrs, name);\n    }\n}\n/**\n * @param {?} tNode\n * @param {?} selector\n * @param {?=} isProjectionMode\n * @return {?}\n */\nfunction isNodeMatchingSelectorList(tNode, selector, isProjectionMode = false) {\n    for (let i = 0; i < selector.length; i++) {\n        if (isNodeMatchingSelector(tNode, selector[i], isProjectionMode)) {\n            return true;\n        }\n    }\n    return false;\n}\n/**\n * @param {?} tNode\n * @return {?}\n */\nfunction getProjectAsAttrValue(tNode) {\n    /** @type {?} */\n    const nodeAttrs = tNode.attrs;\n    if (nodeAttrs != null) {\n        /** @type {?} */\n        const ngProjectAsAttrIdx = nodeAttrs.indexOf(5 /* ProjectAs */);\n        // only check for ngProjectAs in attribute names, don't accidentally match attribute's value\n        // (attribute names are stored at even indexes)\n        if ((ngProjectAsAttrIdx & 1) === 0) {\n            return (/** @type {?} */ (nodeAttrs[ngProjectAsAttrIdx + 1]));\n        }\n    }\n    return null;\n}\n/**\n * @param {?} nodeAttrs\n * @return {?}\n */\nfunction getNameOnlyMarkerIndex(nodeAttrs) {\n    for (let i = 0; i < nodeAttrs.length; i++) {\n        /** @type {?} */\n        const nodeAttr = nodeAttrs[i];\n        if (isNameOnlyAttributeMarker(nodeAttr)) {\n            return i;\n        }\n    }\n    return nodeAttrs.length;\n}\n/**\n * @param {?} attrs\n * @param {?} name\n * @return {?}\n */\nfunction matchTemplateAttribute(attrs, name) {\n    /** @type {?} */\n    let i = attrs.indexOf(4 /* Template */);\n    if (i > -1) {\n        i++;\n        while (i < attrs.length) {\n            /** @type {?} */\n            const attr = attrs[i];\n            // Return in case we checked all template attrs and are switching to the next section in the\n            // attrs array (that starts with a number that represents an attribute marker).\n            if (typeof attr === 'number')\n                return -1;\n            if (attr === name)\n                return i;\n            i++;\n        }\n    }\n    return -1;\n}\n/**\n * Checks whether a selector is inside a CssSelectorList\n * @param {?} selector Selector to be checked.\n * @param {?} list List in which to look for the selector.\n * @return {?}\n */\nfunction isSelectorInSelectorList(selector, list) {\n    selectorListLoop: for (let i = 0; i < list.length; i++) {\n        /** @type {?} */\n        const currentSelectorInList = list[i];\n        if (selector.length !== currentSelectorInList.length) {\n            continue;\n        }\n        for (let j = 0; j < selector.length; j++) {\n            if (selector[j] !== currentSelectorInList[j]) {\n                continue selectorListLoop;\n            }\n        }\n        return true;\n    }\n    return false;\n}\n/**\n * @param {?} isNegativeMode\n * @param {?} chunk\n * @return {?}\n */\nfunction maybeWrapInNotSelector(isNegativeMode, chunk) {\n    return isNegativeMode ? ':not(' + chunk.trim() + ')' : chunk;\n}\n/**\n * @param {?} selector\n * @return {?}\n */\nfunction stringifyCSSSelector(selector) {\n    /** @type {?} */\n    let result = (/** @type {?} */ (selector[0]));\n    /** @type {?} */\n    let i = 1;\n    /** @type {?} */\n    let mode = 2 /* ATTRIBUTE */;\n    /** @type {?} */\n    let currentChunk = '';\n    /** @type {?} */\n    let isNegativeMode = false;\n    while (i < selector.length) {\n        /** @type {?} */\n        let valueOrMarker = selector[i];\n        if (typeof valueOrMarker === 'string') {\n            if (mode & 2 /* ATTRIBUTE */) {\n                /** @type {?} */\n                const attrValue = (/** @type {?} */ (selector[++i]));\n                currentChunk +=\n                    '[' + valueOrMarker + (attrValue.length > 0 ? '=\"' + attrValue + '\"' : '') + ']';\n            }\n            else if (mode & 8 /* CLASS */) {\n                currentChunk += '.' + valueOrMarker;\n            }\n            else if (mode & 4 /* ELEMENT */) {\n                currentChunk += ' ' + valueOrMarker;\n            }\n        }\n        else {\n            //\n            // Append current chunk to the final result in case we come across SelectorFlag, which\n            // indicates that the previous section of a selector is over. We need to accumulate content\n            // between flags to make sure we wrap the chunk later in :not() selector if needed, e.g.\n            // ```\n            //  ['', Flags.CLASS, '.classA', Flags.CLASS | Flags.NOT, '.classB', '.classC']\n            // ```\n            // should be transformed to `.classA :not(.classB .classC)`.\n            //\n            // Note: for negative selector part, we accumulate content between flags until we find the\n            // next negative flag. This is needed to support a case where `:not()` rule contains more than\n            // one chunk, e.g. the following selector:\n            // ```\n            //  ['', Flags.ELEMENT | Flags.NOT, 'p', Flags.CLASS, 'foo', Flags.CLASS | Flags.NOT, 'bar']\n            // ```\n            // should be stringified to `:not(p.foo) :not(.bar)`\n            //\n            if (currentChunk !== '' && !isPositive(valueOrMarker)) {\n                result += maybeWrapInNotSelector(isNegativeMode, currentChunk);\n                currentChunk = '';\n            }\n            mode = valueOrMarker;\n            // According to CssSelector spec, once we come across `SelectorFlags.NOT` flag, the negative\n            // mode is maintained for remaining chunks of a selector.\n            isNegativeMode = isNegativeMode || !isPositive(mode);\n        }\n        i++;\n    }\n    if (currentChunk !== '') {\n        result += maybeWrapInNotSelector(isNegativeMode, currentChunk);\n    }\n    return result;\n}\n/**\n * Generates string representation of CSS selector in parsed form.\n *\n * ComponentDef and DirectiveDef are generated with the selector in parsed form to avoid doing\n * additional parsing at runtime (for example, for directive matching). However in some cases (for\n * example, while bootstrapping a component), a string version of the selector is required to query\n * for the host element on the page. This function takes the parsed form of a selector and returns\n * its string representation.\n *\n * @param {?} selectorList selector in parsed form\n * @return {?} string representation of a given selector\n */\nfunction stringifyCSSSelectorList(selectorList) {\n    return selectorList.map(stringifyCSSSelector).join(',');\n}\n/**\n * Extracts attributes and classes information from a given CSS selector.\n *\n * This function is used while creating a component dynamically. In this case, the host element\n * (that is created dynamically) should contain attributes and classes specified in component's CSS\n * selector.\n *\n * @param {?} selector CSS selector in parsed form (in a form of array)\n * @return {?} object with `attrs` and `classes` fields that contain extracted information\n */\nfunction extractAttrsAndClassesFromSelector(selector) {\n    /** @type {?} */\n    const attrs = [];\n    /** @type {?} */\n    const classes = [];\n    /** @type {?} */\n    let i = 1;\n    /** @type {?} */\n    let mode = 2 /* ATTRIBUTE */;\n    while (i < selector.length) {\n        /** @type {?} */\n        let valueOrMarker = selector[i];\n        if (typeof valueOrMarker === 'string') {\n            if (mode === 2 /* ATTRIBUTE */) {\n                if (valueOrMarker !== '') {\n                    attrs.push(valueOrMarker, (/** @type {?} */ (selector[++i])));\n                }\n            }\n            else if (mode === 8 /* CLASS */) {\n                classes.push(valueOrMarker);\n            }\n        }\n        else {\n            // According to CssSelector spec, once we come across `SelectorFlags.NOT` flag, the negative\n            // mode is maintained for remaining chunks of a selector. Since attributes and classes are\n            // extracted only for \"positive\" part of the selector, we can stop here.\n            if (!isPositive(mode))\n                break;\n            mode = valueOrMarker;\n        }\n        i++;\n    }\n    return { attrs, classes };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/tokens.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * A special value which designates that a value has not changed.\n * @type {?}\n */\nconst NO_CHANGE = (typeof ngDevMode === 'undefined' || ngDevMode) ? { __brand__: 'NO_CHANGE' } : ((/** @type {?} */ ({})));\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/view_traversal_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Gets the parent LView of the passed LView, if the PARENT is an LContainer, will get the parent of\n * that LContainer, which is an LView\n * @param {?} lView the lView whose parent to get\n * @return {?}\n */\nfunction getLViewParent(lView) {\n    ngDevMode && assertLView(lView);\n    /** @type {?} */\n    const parent = lView[PARENT];\n    return isLContainer(parent) ? (/** @type {?} */ (parent[PARENT])) : parent;\n}\n/**\n * Retrieve the root view from any component or `LView` by walking the parent `LView` until\n * reaching the root `LView`.\n *\n * @param {?} componentOrLView any component or `LView`\n * @return {?}\n */\nfunction getRootView(componentOrLView) {\n    ngDevMode && assertDefined(componentOrLView, 'component');\n    /** @type {?} */\n    let lView = isLView(componentOrLView) ? componentOrLView : (/** @type {?} */ (readPatchedLView(componentOrLView)));\n    while (lView && !(lView[FLAGS] & 512 /* IsRoot */)) {\n        lView = (/** @type {?} */ (getLViewParent(lView)));\n    }\n    ngDevMode && assertLView(lView);\n    return lView;\n}\n/**\n * Returns the `RootContext` instance that is associated with\n * the application where the target is situated. It does this by walking the parent views until it\n * gets to the root view, then getting the context off of that.\n *\n * @param {?} viewOrComponent the `LView` or component to get the root context for.\n * @return {?}\n */\nfunction getRootContext(viewOrComponent) {\n    /** @type {?} */\n    const rootView = getRootView(viewOrComponent);\n    ngDevMode &&\n        assertDefined(rootView[CONTEXT], 'RootView has no context. Perhaps it is disconnected?');\n    return (/** @type {?} */ (rootView[CONTEXT]));\n}\n/**\n * Gets the first `LContainer` in the LView or `null` if none exists.\n * @param {?} lView\n * @return {?}\n */\nfunction getFirstLContainer(lView) {\n    return getNearestLContainer(lView[CHILD_HEAD]);\n}\n/**\n * Gets the next `LContainer` that is a sibling of the given container.\n * @param {?} container\n * @return {?}\n */\nfunction getNextLContainer(container) {\n    return getNearestLContainer(container[NEXT]);\n}\n/**\n * @param {?} viewOrContainer\n * @return {?}\n */\nfunction getNearestLContainer(viewOrContainer) {\n    while (viewOrContainer !== null && !isLContainer(viewOrContainer)) {\n        viewOrContainer = viewOrContainer[NEXT];\n    }\n    return viewOrContainer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/advance.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Advances to an element for later binding instructions.\n *\n * Used in conjunction with instructions like {\\@link property} to act on elements with specified\n * indices, for example those created with {\\@link element} or {\\@link elementStart}.\n *\n * ```ts\n * (rf: RenderFlags, ctx: any) => {\n *   if (rf & 1) {\n *     text(0, 'Hello');\n *     text(1, 'Goodbye')\n *     element(2, 'div');\n *   }\n *   if (rf & 2) {\n *     advance(2); // Advance twice to the <div>.\n *     property('title', 'test');\n *   }\n *  }\n * ```\n * \\@codeGenApi\n * @param {?} delta Number of elements to advance forwards by.\n *\n * @return {?}\n */\nfunction ɵɵadvance(delta) {\n    ngDevMode && assertGreaterThan(delta, 0, 'Can only advance forward');\n    selectIndexInternal(getTView(), getLView(), getSelectedIndex() + delta, getCheckNoChangesMode());\n}\n/**\n * Selects an element for later binding instructions.\n * @deprecated No longer being generated, but still used in unit tests.\n * \\@codeGenApi\n * @param {?} index\n * @return {?}\n */\nfunction ɵɵselect(index) {\n    // TODO(misko): Remove this function as it is no longer being used.\n    selectIndexInternal(getTView(), getLView(), index, getCheckNoChangesMode());\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} index\n * @param {?} checkNoChangesMode\n * @return {?}\n */\nfunction selectIndexInternal(tView, lView, index, checkNoChangesMode) {\n    ngDevMode && assertGreaterThan(index, -1, 'Invalid index');\n    ngDevMode && assertDataInRange(lView, index + HEADER_OFFSET);\n    // Flush the initial hooks for elements in the view that have been added up to this point.\n    // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n    if (!checkNoChangesMode) {\n        /** @type {?} */\n        const hooksInitPhaseCompleted = (lView[FLAGS] & 3 /* InitPhaseStateMask */) === 3 /* InitPhaseCompleted */;\n        if (hooksInitPhaseCompleted) {\n            /** @type {?} */\n            const preOrderCheckHooks = tView.preOrderCheckHooks;\n            if (preOrderCheckHooks !== null) {\n                executeCheckHooks(lView, preOrderCheckHooks, index);\n            }\n        }\n        else {\n            /** @type {?} */\n            const preOrderHooks = tView.preOrderHooks;\n            if (preOrderHooks !== null) {\n                executeInitAndCheckHooks(lView, preOrderHooks, 0 /* OnInitHooksToBeRun */, index);\n            }\n        }\n    }\n    // We must set the selected index *after* running the hooks, because hooks may have side-effects\n    // that cause other template functions to run, thus updating the selected index, which is global\n    // state. If we run `setSelectedIndex` *before* we run the hooks, in some cases the selected index\n    // will be altered by the time we leave the `ɵɵadvance` instruction.\n    setSelectedIndex(index);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/i18n.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst I18nMutateOpCode = {\n    /**\n     * Stores shift amount for bits 17-3 that contain reference index.\n     */\n    SHIFT_REF: 3,\n    /**\n     * Stores shift amount for bits 31-17 that contain parent index.\n     */\n    SHIFT_PARENT: 17,\n    /**\n     * Mask for OpCode\n     */\n    MASK_OPCODE: 7,\n    /**\n     * OpCode to select a node. (next OpCode will contain the operation.)\n     */\n    Select: 0,\n    /**\n     * OpCode to append the current node to `PARENT`.\n     */\n    AppendChild: 1,\n    /**\n     * OpCode to remove the `REF` node from `PARENT`.\n     */\n    Remove: 3,\n    /**\n     * OpCode to set the attribute of a node.\n     */\n    Attr: 4,\n    /**\n     * OpCode to simulate elementEnd()\n     */\n    ElementEnd: 5,\n    /**\n     * OpCode to read the remove OpCodes for the nested ICU\n     */\n    RemoveNestedIcu: 6,\n};\n/**\n * Marks that the next string is for element.\n *\n * See `I18nMutateOpCodes` documentation.\n * @type {?}\n */\nconst ELEMENT_MARKER = {\n    marker: 'element'\n};\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * Marks that the next string is for comment.\n *\n * See `I18nMutateOpCodes` documentation.\n * @type {?}\n */\nconst COMMENT_MARKER = {\n    marker: 'comment'\n};\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * Array storing OpCode for dynamically creating `i18n` blocks.\n *\n * Example:\n * ```ts\n * <I18nCreateOpCode>[\n *   // For adding text nodes\n *   // ---------------------\n *   // Equivalent to:\n *   //   const node = lView[index++] = document.createTextNode('abc');\n *   //   lView[1].insertBefore(node, lView[2]);\n *   'abc', 1 << SHIFT_PARENT | 2 << SHIFT_REF | InsertBefore,\n *\n *   // Equivalent to:\n *   //   const node = lView[index++] = document.createTextNode('xyz');\n *   //   lView[1].appendChild(node);\n *   'xyz', 1 << SHIFT_PARENT | AppendChild,\n *\n *   // For adding element nodes\n *   // ---------------------\n *   // Equivalent to:\n *   //   const node = lView[index++] = document.createElement('div');\n *   //   lView[1].insertBefore(node, lView[2]);\n *   ELEMENT_MARKER, 'div', 1 << SHIFT_PARENT | 2 << SHIFT_REF | InsertBefore,\n *\n *   // Equivalent to:\n *   //   const node = lView[index++] = document.createElement('div');\n *   //   lView[1].appendChild(node);\n *   ELEMENT_MARKER, 'div', 1 << SHIFT_PARENT | AppendChild,\n *\n *   // For adding comment nodes\n *   // ---------------------\n *   // Equivalent to:\n *   //   const node = lView[index++] = document.createComment('');\n *   //   lView[1].insertBefore(node, lView[2]);\n *   COMMENT_MARKER, '', 1 << SHIFT_PARENT | 2 << SHIFT_REF | InsertBefore,\n *\n *   // Equivalent to:\n *   //   const node = lView[index++] = document.createComment('');\n *   //   lView[1].appendChild(node);\n *   COMMENT_MARKER, '', 1 << SHIFT_PARENT | AppendChild,\n *\n *   // For moving existing nodes to a different location\n *   // --------------------------------------------------\n *   // Equivalent to:\n *   //   const node = lView[1];\n *   //   lView[2].insertBefore(node, lView[3]);\n *   1 << SHIFT_REF | Select, 2 << SHIFT_PARENT | 3 << SHIFT_REF | InsertBefore,\n *\n *   // Equivalent to:\n *   //   const node = lView[1];\n *   //   lView[2].appendChild(node);\n *   1 << SHIFT_REF | Select, 2 << SHIFT_PARENT | AppendChild,\n *\n *   // For removing existing nodes\n *   // --------------------------------------------------\n *   //   const node = lView[1];\n *   //   removeChild(tView.data(1), node, lView);\n *   1 << SHIFT_REF | Remove,\n *\n *   // For writing attributes\n *   // --------------------------------------------------\n *   //   const node = lView[1];\n *   //   node.setAttribute('attr', 'value');\n *   1 << SHIFT_REF | Select, 'attr', 'value'\n *            // NOTE: Select followed by two string (vs select followed by OpCode)\n * ];\n * ```\n * NOTE:\n *   - `index` is initial location where the extra nodes should be stored in the EXPANDO section of\n * `LVIewData`.\n *\n * See: `applyI18nCreateOpCodes`;\n * @record\n */\nfunction I18nMutateOpCodes() { }\n/** @enum {number} */\nconst I18nUpdateOpCode = {\n    /**\n     * Stores shift amount for bits 17-2 that contain reference index.\n     */\n    SHIFT_REF: 2,\n    /**\n     * Mask for OpCode\n     */\n    MASK_OPCODE: 3,\n    /**\n     * OpCode to update a text node.\n     */\n    Text: 0,\n    /**\n     * OpCode to update a attribute of a node.\n     */\n    Attr: 1,\n    /**\n     * OpCode to switch the current ICU case.\n     */\n    IcuSwitch: 2,\n    /**\n     * OpCode to update the current ICU case.\n     */\n    IcuUpdate: 3,\n};\n/**\n * Stores DOM operations which need to be applied to update DOM render tree due to changes in\n * expressions.\n *\n * The basic idea is that `i18nExp` OpCodes capture expression changes and update a change\n * mask bit. (Bit 1 for expression 1, bit 2 for expression 2 etc..., bit 32 for expression 32 and\n * higher.) The OpCodes then compare its own change mask against the expression change mask to\n * determine if the OpCodes should execute.\n *\n * These OpCodes can be used by both the i18n block as well as ICU sub-block.\n *\n * ## Example\n *\n * Assume\n * ```ts\n *   if (rf & RenderFlags.Update) {\n *    i18nExp(ctx.exp1); // If changed set mask bit 1\n *    i18nExp(ctx.exp2); // If changed set mask bit 2\n *    i18nExp(ctx.exp3); // If changed set mask bit 3\n *    i18nExp(ctx.exp4); // If changed set mask bit 4\n *    i18nApply(0);            // Apply all changes by executing the OpCodes.\n *  }\n * ```\n * We can assume that each call to `i18nExp` sets an internal `changeMask` bit depending on the\n * index of `i18nExp`.\n *\n * ### OpCodes\n * ```ts\n * <I18nUpdateOpCodes>[\n *   // The following OpCodes represent: `<div i18n-title=\"pre{{exp1}}in{{exp2}}post\">`\n *   // If `changeMask & 0b11`\n *   //        has changed then execute update OpCodes.\n *   //        has NOT changed then skip `7` values and start processing next OpCodes.\n *   0b11, 7,\n *   // Concatenate `newValue = 'pre'+lView[bindIndex-4]+'in'+lView[bindIndex-3]+'post';`.\n *   'pre', -4, 'in', -3, 'post',\n *   // Update attribute: `elementAttribute(1, 'title', sanitizerFn(newValue));`\n *   1 << SHIFT_REF | Attr, 'title', sanitizerFn,\n *\n *   // The following OpCodes represent: `<div i18n>Hello {{exp3}}!\">`\n *   // If `changeMask & 0b100`\n *   //        has changed then execute update OpCodes.\n *   //        has NOT changed then skip `4` values and start processing next OpCodes.\n *   0b100, 4,\n *   // Concatenate `newValue = 'Hello ' + lView[bindIndex -2] + '!';`.\n *   'Hello ', -2, '!',\n *   // Update text: `lView[1].textContent = newValue;`\n *   1 << SHIFT_REF | Text,\n *\n *   // The following OpCodes represent: `<div i18n>{exp4, plural, ... }\">`\n *   // If `changeMask & 0b1000`\n *   //        has changed then execute update OpCodes.\n *   //        has NOT changed then skip `4` values and start processing next OpCodes.\n *   0b1000, 4,\n *   // Concatenate `newValue = lView[bindIndex -1];`.\n *   -1,\n *   // Switch ICU: `icuSwitchCase(lView[1], 0, newValue);`\n *   0 << SHIFT_ICU | 1 << SHIFT_REF | IcuSwitch,\n *\n *   // Note `changeMask & -1` is always true, so the IcuUpdate will always execute.\n *   -1, 1,\n *   // Update ICU: `icuUpdateCase(lView[1], 0);`\n *   0 << SHIFT_ICU | 1 << SHIFT_REF | IcuUpdate,\n *\n * ];\n * ```\n *\n * @record\n */\nfunction I18nUpdateOpCodes() { }\n/**\n * Store information for the i18n translation block.\n * @record\n */\nfunction TI18n() { }\nif (false) {\n    /**\n     * Number of slots to allocate in expando.\n     *\n     * This is the max number of DOM elements which will be created by this i18n + ICU blocks. When\n     * the DOM elements are being created they are stored in the EXPANDO, so that update OpCodes can\n     * write into them.\n     * @type {?}\n     */\n    TI18n.prototype.vars;\n    /**\n     * A set of OpCodes which will create the Text Nodes and ICU anchors for the translation blocks.\n     *\n     * NOTE: The ICU anchors are filled in with ICU Update OpCode.\n     * @type {?}\n     */\n    TI18n.prototype.create;\n    /**\n     * A set of OpCodes which will be executed on each change detection to determine if any changes to\n     * DOM are required.\n     * @type {?}\n     */\n    TI18n.prototype.update;\n    /**\n     * A list of ICUs in a translation block (or `null` if block has no ICUs).\n     *\n     * Example:\n     * Given: `<div i18n>You have {count, plural, ...} and {state, switch, ...}</div>`\n     * There would be 2 ICUs in this array.\n     *   1. `{count, plural, ...}`\n     *   2. `{state, switch, ...}`\n     * @type {?}\n     */\n    TI18n.prototype.icus;\n}\n/** @enum {number} */\nconst IcuType = {\n    select: 0,\n    plural: 1,\n};\n/**\n * @record\n */\nfunction TIcu() { }\nif (false) {\n    /**\n     * Defines the ICU type of `select` or `plural`\n     * @type {?}\n     */\n    TIcu.prototype.type;\n    /**\n     * Number of slots to allocate in expando for each case.\n     *\n     * This is the max number of DOM elements which will be created by this i18n + ICU blocks. When\n     * the DOM elements are being created they are stored in the EXPANDO, so that update OpCodes can\n     * write into them.\n     * @type {?}\n     */\n    TIcu.prototype.vars;\n    /**\n     * An optional array of child/sub ICUs.\n     *\n     * In case of nested ICUs such as:\n     * ```\n     * {�0�, plural,\n     *   =0 {zero}\n     *   other {�0� {�1�, select,\n     *                     cat {cats}\n     *                     dog {dogs}\n     *                     other {animals}\n     *                   }!\n     *   }\n     * }\n     * ```\n     * When the parent ICU is changing it must clean up child ICUs as well. For this reason it needs\n     * to know which child ICUs to run clean up for as well.\n     *\n     * In the above example this would be:\n     * ```ts\n     * [\n     *   [],   // `=0` has no sub ICUs\n     *   [1],  // `other` has one subICU at `1`st index.\n     * ]\n     * ```\n     *\n     * The reason why it is Array of Arrays is because first array represents the case, and second\n     * represents the child ICUs to clean up. There may be more than one child ICUs per case.\n     * @type {?}\n     */\n    TIcu.prototype.childIcus;\n    /**\n     * A list of case values which the current ICU will try to match.\n     *\n     * The last value is `other`\n     * @type {?}\n     */\n    TIcu.prototype.cases;\n    /**\n     * A set of OpCodes to apply in order to build up the DOM render tree for the ICU\n     * @type {?}\n     */\n    TIcu.prototype.create;\n    /**\n     * A set of OpCodes to apply in order to destroy the DOM render tree for the ICU.\n     * @type {?}\n     */\n    TIcu.prototype.remove;\n    /**\n     * A set of OpCodes to apply in order to update the DOM render tree for the ICU bindings.\n     * @type {?}\n     */\n    TIcu.prototype.update;\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$6 = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/styling.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Store the static values for the styling binding.\n *\n * The `TStylingStatic` is just `KeyValueArray` where key `\"\"` (stored at location 0) contains the\n * `TStylingKey` (stored at location 1). In other words this wraps the `TStylingKey` such that the\n * `\"\"` contains the wrapped value.\n *\n * When instructions are resolving styling they may need to look forward or backwards in the linked\n * list to resolve the value. For this reason we have to make sure that he linked list also contains\n * the static values. However the list only has space for one item per styling instruction. For this\n * reason we store the static values here as part of the `TStylingKey`. This means that the\n * resolution function when looking for a value needs to first look at the binding value, and than\n * at `TStylingKey` (if it exists).\n *\n * Imagine we have:\n *\n * ```\n * <div class=\"TEMPLATE\" my-dir>\n *\n * \\@Directive({\n *   host: {\n *     class: 'DIR',\n *     '[class.dynamic]': 'exp' // ɵɵclassProp('dynamic', ctx.exp);\n *   }\n * })\n * ```\n *\n * In the above case the linked list will contain one item:\n *\n * ```\n *   // assume binding location: 10 for `ɵɵclassProp('dynamic', ctx.exp);`\n *   tData[10] = <TStylingStatic>[\n *     '': 'dynamic', // This is the wrapped value of `TStylingKey`\n *     'DIR': true,   // This is the default static value of directive binding.\n *   ];\n *   tData[10 + 1] = 0; // We don't have prev/next.\n *\n *   lView[10] = undefined;     // assume `ctx.exp` is `undefined`\n *   lView[10 + 1] = undefined; // Just normalized `lView[10]`\n * ```\n *\n * So when the function is resolving styling value, it first needs to look into the linked list\n * (there is none) and than into the static `TStylingStatic` too see if there is a default value for\n * `dynamic` (there is not). Therefore it is safe to remove it.\n *\n * If setting `true` case:\n * ```\n *   lView[10] = true;     // assume `ctx.exp` is `true`\n *   lView[10 + 1] = true; // Just normalized `lView[10]`\n * ```\n * So when the function is resolving styling value, it first needs to look into the linked list\n * (there is none) and than into `TNode.residualClass` (TNode.residualStyle) which contains\n * ```\n *   tNode.residualClass = [\n *     'TEMPLATE': true,\n *   ];\n * ```\n *\n * This means that it is safe to add class.\n * @record\n */\nfunction TStylingStatic() { }\n/**\n * This is a branded number which contains previous and next index.\n *\n * When we come across styling instructions we need to store the `TStylingKey` in the correct\n * order so that we can re-concatenate the styling value in the desired priority.\n *\n * The insertion can happen either at the:\n * - end of template as in the case of coming across additional styling instruction in the template\n * - in front of the template in the case of coming across additional instruction in the\n *   `hostBindings`.\n *\n * We use `TStylingRange` to store the previous and next index into the `TData` where the template\n * bindings can be found.\n *\n * - bit 0 is used to mark that the previous index has a duplicate for current value.\n * - bit 1 is used to mark that the next index has a duplicate for the current value.\n * - bits 2-16 are used to encode the next/tail of the template.\n * - bits 17-32 are used to encode the previous/head of template.\n *\n * NODE: *duplicate* false implies that it is statically known that this binding will not collide\n * with other bindings and therefore there is no need to check other bindings. For example the\n * bindings in `<div [style.color]=\"exp\" [style.width]=\"exp\">` will never collide and will have\n * their bits set accordingly. Previous duplicate means that we may need to check previous if the\n * current binding is `null`. Next duplicate means that we may need to check next bindings if the\n * current binding is not `null`.\n *\n * NOTE: `0` has special significance and represents `null` as in no additional pointer.\n * @record\n */\nfunction TStylingRange() { }\nif (false) {\n    /** @type {?} */\n    TStylingRange.prototype.__brand__;\n}\n/** @enum {number} */\nconst StylingRange = {\n    /// Number of bits to shift for the previous pointer\n    PREV_SHIFT: 17,\n    /// Previous pointer mask.\n    PREV_MASK: 4294836224,\n    /// Number of bits to shift for the next pointer\n    NEXT_SHIFT: 2,\n    /// Next pointer mask.\n    NEXT_MASK: 131068,\n    // Mask to remove nagative bit. (interpret number as positive)\n    UNSIGNED_MASK: 32767,\n    /**\n     * This bit is set if the previous bindings contains a binding which could possibly cause a\n     * duplicate. For example: `<div [style]=\"map\" [style.width]=\"width\">`, the `width` binding will\n     * have previous duplicate set. The implication is that if `width` binding becomes `null`, it is\n     * necessary to defer the value to `map.width`. (Because `width` overwrites `map.width`.)\n     */\n    PREV_DUPLICATE: 2,\n    /**\n     * This bit is set to if the next binding contains a binding which could possibly cause a\n     * duplicate. For example: `<div [style]=\"map\" [style.width]=\"width\">`, the `map` binding will\n     * have next duplicate set. The implication is that if `map.width` binding becomes not `null`, it\n     * is necessary to defer the value to `width`. (Because `width` overwrites `map.width`.)\n     */\n    NEXT_DUPLICATE: 1,\n};\n/**\n * @param {?} prev\n * @param {?} next\n * @return {?}\n */\nfunction toTStylingRange(prev, next) {\n    ngDevMode && assertNumberInRange(prev, 0, 32767 /* UNSIGNED_MASK */);\n    ngDevMode && assertNumberInRange(next, 0, 32767 /* UNSIGNED_MASK */);\n    return (/** @type {?} */ ((prev << 17 /* PREV_SHIFT */ | next << 2 /* NEXT_SHIFT */)));\n}\n/**\n * @param {?} tStylingRange\n * @return {?}\n */\nfunction getTStylingRangePrev(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) >> 17 /* PREV_SHIFT */) & 32767 /* UNSIGNED_MASK */;\n}\n/**\n * @param {?} tStylingRange\n * @return {?}\n */\nfunction getTStylingRangePrevDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) & 2 /* PREV_DUPLICATE */) ==\n        2 /* PREV_DUPLICATE */;\n}\n/**\n * @param {?} tStylingRange\n * @param {?} previous\n * @return {?}\n */\nfunction setTStylingRangePrev(tStylingRange, previous) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    ngDevMode && assertNumberInRange(previous, 0, 32767 /* UNSIGNED_MASK */);\n    return (/** @type {?} */ (((((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) & ~4294836224 /* PREV_MASK */) |\n        (previous << 17 /* PREV_SHIFT */))));\n}\n/**\n * @param {?} tStylingRange\n * @return {?}\n */\nfunction setTStylingRangePrevDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (/** @type {?} */ ((((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) | 2 /* PREV_DUPLICATE */)));\n}\n/**\n * @param {?} tStylingRange\n * @return {?}\n */\nfunction getTStylingRangeNext(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) & 131068 /* NEXT_MASK */) >> 2 /* NEXT_SHIFT */;\n}\n/**\n * @param {?} tStylingRange\n * @param {?} next\n * @return {?}\n */\nfunction setTStylingRangeNext(tStylingRange, next) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    ngDevMode && assertNumberInRange(next, 0, 32767 /* UNSIGNED_MASK */);\n    return (/** @type {?} */ (((((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) & ~131068 /* NEXT_MASK */) | //\n        next << 2 /* NEXT_SHIFT */)));\n}\n/**\n * @param {?} tStylingRange\n * @return {?}\n */\nfunction getTStylingRangeNextDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) & 1 /* NEXT_DUPLICATE */) ===\n        1 /* NEXT_DUPLICATE */;\n}\n/**\n * @param {?} tStylingRange\n * @return {?}\n */\nfunction setTStylingRangeNextDuplicate(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    return (/** @type {?} */ ((((/** @type {?} */ ((/** @type {?} */ (tStylingRange))))) | 1 /* NEXT_DUPLICATE */)));\n}\n/**\n * @param {?} tStylingRange\n * @return {?}\n */\nfunction getTStylingRangeTail(tStylingRange) {\n    ngDevMode && assertNumber(tStylingRange, 'expected number');\n    /** @type {?} */\n    const next = getTStylingRangeNext(tStylingRange);\n    return next === 0 ? getTStylingRangePrev(tStylingRange) : next;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/debug_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n * @param {?} obj\n * @param {?} debug\n * @return {?}\n */\nfunction attachDebugObject(obj, debug) {\n    Object.defineProperty(obj, 'debug', { value: debug, enumerable: false });\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/lview_debug.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst NG_DEV_MODE = ((typeof ngDevMode === 'undefined' || !!ngDevMode) && initNgDevMode());\n/*\n * This file contains conditionally attached classes which provide human readable (debug) level\n * information for `LView`, `LContainer` and other internal data structures. These data structures\n * are stored internally as array which makes it very difficult during debugging to reason about the\n * current state of the system.\n *\n * Patching the array with extra property does change the array's hidden class' but it does not\n * change the cost of access, therefore this patching should not have significant if any impact in\n * `ngDevMode` mode. (see: https://jsperf.com/array-vs-monkey-patch-array)\n *\n * So instead of seeing:\n * ```\n * Array(30) [Object, 659, null, …]\n * ```\n *\n * You get to see:\n * ```\n * LViewDebug {\n *   views: [...],\n *   flags: {attached: true, ...}\n *   nodes: [\n *     {html: '<div id=\"123\">', ..., nodes: [\n *       {html: '<span>', ..., nodes: null}\n *     ]}\n *   ]\n * }\n * ```\n */\n/** @type {?} */\nlet LVIEW_COMPONENT_CACHE;\n/** @type {?} */\nlet LVIEW_EMBEDDED_CACHE;\n/** @type {?} */\nlet LVIEW_ROOT;\n/**\n * @record\n */\nfunction TViewDebug() { }\nif (false) {\n    /** @type {?} */\n    TViewDebug.prototype.type;\n}\n/**\n * This function clones a blueprint and creates LView.\n *\n * Simple slice will keep the same type, and we need it to be LView\n * @param {?} tView\n * @return {?}\n */\nfunction cloneToLViewFromTViewBlueprint(tView) {\n    /** @type {?} */\n    const debugTView = (/** @type {?} */ (tView));\n    /** @type {?} */\n    const lView = getLViewToClone(debugTView.type, tView.template && tView.template.name);\n    return (/** @type {?} */ (lView.concat(tView.blueprint)));\n}\n/**\n * @param {?} type\n * @param {?} name\n * @return {?}\n */\nfunction getLViewToClone(type, name) {\n    switch (type) {\n        case 0 /* Root */:\n            if (LVIEW_ROOT === undefined)\n                LVIEW_ROOT = new (createNamedArrayType('LRootView'))();\n            return LVIEW_ROOT;\n        case 1 /* Component */:\n            if (LVIEW_COMPONENT_CACHE === undefined)\n                LVIEW_COMPONENT_CACHE = new Map();\n            /** @type {?} */\n            let componentArray = LVIEW_COMPONENT_CACHE.get(name);\n            if (componentArray === undefined) {\n                componentArray = new (createNamedArrayType('LComponentView' + nameSuffix(name)))();\n                LVIEW_COMPONENT_CACHE.set(name, componentArray);\n            }\n            return componentArray;\n        case 2 /* Embedded */:\n            if (LVIEW_EMBEDDED_CACHE === undefined)\n                LVIEW_EMBEDDED_CACHE = new Map();\n            /** @type {?} */\n            let embeddedArray = LVIEW_EMBEDDED_CACHE.get(name);\n            if (embeddedArray === undefined) {\n                embeddedArray = new (createNamedArrayType('LEmbeddedView' + nameSuffix(name)))();\n                LVIEW_EMBEDDED_CACHE.set(name, embeddedArray);\n            }\n            return embeddedArray;\n    }\n    throw new Error('unreachable code');\n}\n/**\n * @param {?} text\n * @return {?}\n */\nfunction nameSuffix(text) {\n    if (text == null)\n        return '';\n    /** @type {?} */\n    const index = text.lastIndexOf('_Template');\n    return '_' + (index === -1 ? text : text.substr(0, index));\n}\n/**\n * This class is a debug version of Object literal so that we can have constructor name show up\n * in\n * debug tools in ngDevMode.\n * @type {?}\n */\nconst TViewConstructor = class TView {\n    /**\n     * @param {?} type\n     * @param {?} id\n     * @param {?} blueprint\n     * @param {?} template\n     * @param {?} queries\n     * @param {?} viewQuery\n     * @param {?} node\n     * @param {?} data\n     * @param {?} bindingStartIndex\n     * @param {?} expandoStartIndex\n     * @param {?} expandoInstructions\n     * @param {?} firstCreatePass\n     * @param {?} firstUpdatePass\n     * @param {?} staticViewQueries\n     * @param {?} staticContentQueries\n     * @param {?} preOrderHooks\n     * @param {?} preOrderCheckHooks\n     * @param {?} contentHooks\n     * @param {?} contentCheckHooks\n     * @param {?} viewHooks\n     * @param {?} viewCheckHooks\n     * @param {?} destroyHooks\n     * @param {?} cleanup\n     * @param {?} contentQueries\n     * @param {?} components\n     * @param {?} directiveRegistry\n     * @param {?} pipeRegistry\n     * @param {?} firstChild\n     * @param {?} schemas\n     * @param {?} consts\n     * @param {?} incompleteFirstPass\n     */\n    constructor(type, //\n    id, //\n    blueprint, //\n    template, //\n    queries, //\n    viewQuery, //\n    node, //\n    data, //\n    bindingStartIndex, //\n    expandoStartIndex, //\n    expandoInstructions, //\n    firstCreatePass, //\n    firstUpdatePass, //\n    staticViewQueries, //\n    staticContentQueries, //\n    preOrderHooks, //\n    preOrderCheckHooks, //\n    contentHooks, //\n    contentCheckHooks, //\n    viewHooks, //\n    viewCheckHooks, //\n    destroyHooks, //\n    cleanup, //\n    contentQueries, //\n    components, //\n    directiveRegistry, //\n    pipeRegistry, //\n    firstChild, //\n    schemas, //\n    consts, //\n    incompleteFirstPass //\n    ) {\n        this.type = type;\n        this.id = id;\n        this.blueprint = blueprint;\n        this.template = template;\n        this.queries = queries;\n        this.viewQuery = viewQuery;\n        this.node = node;\n        this.data = data;\n        this.bindingStartIndex = bindingStartIndex;\n        this.expandoStartIndex = expandoStartIndex;\n        this.expandoInstructions = expandoInstructions;\n        this.firstCreatePass = firstCreatePass;\n        this.firstUpdatePass = firstUpdatePass;\n        this.staticViewQueries = staticViewQueries;\n        this.staticContentQueries = staticContentQueries;\n        this.preOrderHooks = preOrderHooks;\n        this.preOrderCheckHooks = preOrderCheckHooks;\n        this.contentHooks = contentHooks;\n        this.contentCheckHooks = contentCheckHooks;\n        this.viewHooks = viewHooks;\n        this.viewCheckHooks = viewCheckHooks;\n        this.destroyHooks = destroyHooks;\n        this.cleanup = cleanup;\n        this.contentQueries = contentQueries;\n        this.components = components;\n        this.directiveRegistry = directiveRegistry;\n        this.pipeRegistry = pipeRegistry;\n        this.firstChild = firstChild;\n        this.schemas = schemas;\n        this.consts = consts;\n        this.incompleteFirstPass = incompleteFirstPass;\n    }\n    /**\n     * @return {?}\n     */\n    get template_() {\n        /** @type {?} */\n        const buf = [];\n        processTNodeChildren(this.firstChild, buf);\n        return buf.join('');\n    }\n};\nclass TNode$1 {\n    /**\n     * @param {?} tView_\n     * @param {?} type\n     * @param {?} index\n     * @param {?} injectorIndex\n     * @param {?} directiveStart\n     * @param {?} directiveEnd\n     * @param {?} directiveStylingLast\n     * @param {?} propertyBindings\n     * @param {?} flags\n     * @param {?} providerIndexes\n     * @param {?} tagName\n     * @param {?} attrs\n     * @param {?} mergedAttrs\n     * @param {?} localNames\n     * @param {?} initialInputs\n     * @param {?} inputs\n     * @param {?} outputs\n     * @param {?} tViews\n     * @param {?} next\n     * @param {?} projectionNext\n     * @param {?} child\n     * @param {?} parent\n     * @param {?} projection\n     * @param {?} styles\n     * @param {?} stylesWithoutHost\n     * @param {?} residualStyles\n     * @param {?} classes\n     * @param {?} classesWithoutHost\n     * @param {?} residualClasses\n     * @param {?} classBindings\n     * @param {?} styleBindings\n     */\n    constructor(tView_, //\n    type, //\n    index, //\n    injectorIndex, //\n    directiveStart, //\n    directiveEnd, //\n    directiveStylingLast, //\n    propertyBindings, //\n    flags, //\n    providerIndexes, //\n    tagName, //\n    attrs, //\n    mergedAttrs, //\n    localNames, //\n    initialInputs, //\n    inputs, //\n    outputs, //\n    tViews, //\n    next, //\n    projectionNext, //\n    child, //\n    parent, //\n    projection, //\n    styles, //\n    stylesWithoutHost, //\n    residualStyles, //\n    classes, //\n    classesWithoutHost, //\n    residualClasses, //\n    classBindings, //\n    styleBindings) {\n        this.tView_ = tView_;\n        this.type = type;\n        this.index = index;\n        this.injectorIndex = injectorIndex;\n        this.directiveStart = directiveStart;\n        this.directiveEnd = directiveEnd;\n        this.directiveStylingLast = directiveStylingLast;\n        this.propertyBindings = propertyBindings;\n        this.flags = flags;\n        this.providerIndexes = providerIndexes;\n        this.tagName = tagName;\n        this.attrs = attrs;\n        this.mergedAttrs = mergedAttrs;\n        this.localNames = localNames;\n        this.initialInputs = initialInputs;\n        this.inputs = inputs;\n        this.outputs = outputs;\n        this.tViews = tViews;\n        this.next = next;\n        this.projectionNext = projectionNext;\n        this.child = child;\n        this.parent = parent;\n        this.projection = projection;\n        this.styles = styles;\n        this.stylesWithoutHost = stylesWithoutHost;\n        this.residualStyles = residualStyles;\n        this.classes = classes;\n        this.classesWithoutHost = classesWithoutHost;\n        this.residualClasses = residualClasses;\n        this.classBindings = classBindings;\n        this.styleBindings = styleBindings;\n    }\n    /**\n     * @return {?}\n     */\n    get type_() {\n        switch (this.type) {\n            case 0 /* Container */:\n                return 'TNodeType.Container';\n            case 3 /* Element */:\n                return 'TNodeType.Element';\n            case 4 /* ElementContainer */:\n                return 'TNodeType.ElementContainer';\n            case 5 /* IcuContainer */:\n                return 'TNodeType.IcuContainer';\n            case 1 /* Projection */:\n                return 'TNodeType.Projection';\n            case 2 /* View */:\n                return 'TNodeType.View';\n            default:\n                return 'TNodeType.???';\n        }\n    }\n    /**\n     * @return {?}\n     */\n    get flags_() {\n        /** @type {?} */\n        const flags = [];\n        if (this.flags & 16 /* hasClassInput */)\n            flags.push('TNodeFlags.hasClassInput');\n        if (this.flags & 8 /* hasContentQuery */)\n            flags.push('TNodeFlags.hasContentQuery');\n        if (this.flags & 32 /* hasStyleInput */)\n            flags.push('TNodeFlags.hasStyleInput');\n        if (this.flags & 128 /* hasHostBindings */)\n            flags.push('TNodeFlags.hasHostBindings');\n        if (this.flags & 2 /* isComponentHost */)\n            flags.push('TNodeFlags.isComponentHost');\n        if (this.flags & 1 /* isDirectiveHost */)\n            flags.push('TNodeFlags.isDirectiveHost');\n        if (this.flags & 64 /* isDetached */)\n            flags.push('TNodeFlags.isDetached');\n        if (this.flags & 4 /* isProjected */)\n            flags.push('TNodeFlags.isProjected');\n        return flags.join('|');\n    }\n    /**\n     * @return {?}\n     */\n    get template_() {\n        /** @type {?} */\n        const buf = [];\n        buf.push('<', this.tagName || this.type_);\n        if (this.attrs) {\n            for (let i = 0; i < this.attrs.length;) {\n                /** @type {?} */\n                const attrName = this.attrs[i++];\n                if (typeof attrName == 'number') {\n                    break;\n                }\n                /** @type {?} */\n                const attrValue = this.attrs[i++];\n                buf.push(' ', (/** @type {?} */ (attrName)), '=\"', (/** @type {?} */ (attrValue)), '\"');\n            }\n        }\n        buf.push('>');\n        processTNodeChildren(this.child, buf);\n        buf.push('</', this.tagName || this.type_, '>');\n        return buf.join('');\n    }\n    /**\n     * @return {?}\n     */\n    get styleBindings_() {\n        return toDebugStyleBinding(this, false);\n    }\n    /**\n     * @return {?}\n     */\n    get classBindings_() {\n        return toDebugStyleBinding(this, true);\n    }\n}\nif (false) {\n    /** @type {?} */\n    TNode$1.prototype.tView_;\n    /** @type {?} */\n    TNode$1.prototype.type;\n    /** @type {?} */\n    TNode$1.prototype.index;\n    /** @type {?} */\n    TNode$1.prototype.injectorIndex;\n    /** @type {?} */\n    TNode$1.prototype.directiveStart;\n    /** @type {?} */\n    TNode$1.prototype.directiveEnd;\n    /** @type {?} */\n    TNode$1.prototype.directiveStylingLast;\n    /** @type {?} */\n    TNode$1.prototype.propertyBindings;\n    /** @type {?} */\n    TNode$1.prototype.flags;\n    /** @type {?} */\n    TNode$1.prototype.providerIndexes;\n    /** @type {?} */\n    TNode$1.prototype.tagName;\n    /** @type {?} */\n    TNode$1.prototype.attrs;\n    /** @type {?} */\n    TNode$1.prototype.mergedAttrs;\n    /** @type {?} */\n    TNode$1.prototype.localNames;\n    /** @type {?} */\n    TNode$1.prototype.initialInputs;\n    /** @type {?} */\n    TNode$1.prototype.inputs;\n    /** @type {?} */\n    TNode$1.prototype.outputs;\n    /** @type {?} */\n    TNode$1.prototype.tViews;\n    /** @type {?} */\n    TNode$1.prototype.next;\n    /** @type {?} */\n    TNode$1.prototype.projectionNext;\n    /** @type {?} */\n    TNode$1.prototype.child;\n    /** @type {?} */\n    TNode$1.prototype.parent;\n    /** @type {?} */\n    TNode$1.prototype.projection;\n    /** @type {?} */\n    TNode$1.prototype.styles;\n    /** @type {?} */\n    TNode$1.prototype.stylesWithoutHost;\n    /** @type {?} */\n    TNode$1.prototype.residualStyles;\n    /** @type {?} */\n    TNode$1.prototype.classes;\n    /** @type {?} */\n    TNode$1.prototype.classesWithoutHost;\n    /** @type {?} */\n    TNode$1.prototype.residualClasses;\n    /** @type {?} */\n    TNode$1.prototype.classBindings;\n    /** @type {?} */\n    TNode$1.prototype.styleBindings;\n}\n/** @type {?} */\nconst TNodeDebug = TNode$1;\n/**\n * @record\n */\nfunction DebugStyleBindings() { }\n/**\n * @record\n */\nfunction DebugStyleBinding() { }\nif (false) {\n    /** @type {?} */\n    DebugStyleBinding.prototype.key;\n    /** @type {?} */\n    DebugStyleBinding.prototype.index;\n    /** @type {?} */\n    DebugStyleBinding.prototype.isTemplate;\n    /** @type {?} */\n    DebugStyleBinding.prototype.prevDuplicate;\n    /** @type {?} */\n    DebugStyleBinding.prototype.nextDuplicate;\n    /** @type {?} */\n    DebugStyleBinding.prototype.prevIndex;\n    /** @type {?} */\n    DebugStyleBinding.prototype.nextIndex;\n}\n/**\n * @param {?} tNode\n * @param {?} isClassBased\n * @return {?}\n */\nfunction toDebugStyleBinding(tNode, isClassBased) {\n    /** @type {?} */\n    const tData = tNode.tView_.data;\n    /** @type {?} */\n    const bindings = (/** @type {?} */ ([]));\n    /** @type {?} */\n    const range = isClassBased ? tNode.classBindings : tNode.styleBindings;\n    /** @type {?} */\n    const prev = getTStylingRangePrev(range);\n    /** @type {?} */\n    const next = getTStylingRangeNext(range);\n    /** @type {?} */\n    let isTemplate = next !== 0;\n    /** @type {?} */\n    let cursor = isTemplate ? next : prev;\n    while (cursor !== 0) {\n        /** @type {?} */\n        const itemKey = (/** @type {?} */ (tData[cursor]));\n        /** @type {?} */\n        const itemRange = (/** @type {?} */ (tData[cursor + 1]));\n        bindings.unshift({\n            key: itemKey,\n            index: cursor,\n            isTemplate: isTemplate,\n            prevDuplicate: getTStylingRangePrevDuplicate(itemRange),\n            nextDuplicate: getTStylingRangeNextDuplicate(itemRange),\n            nextIndex: getTStylingRangeNext(itemRange),\n            prevIndex: getTStylingRangePrev(itemRange),\n        });\n        if (cursor === prev)\n            isTemplate = false;\n        cursor = getTStylingRangePrev(itemRange);\n    }\n    bindings.push((isClassBased ? tNode.residualClasses : tNode.residualStyles) || null);\n    return bindings;\n}\n/**\n * @param {?} tNode\n * @param {?} buf\n * @return {?}\n */\nfunction processTNodeChildren(tNode, buf) {\n    while (tNode) {\n        buf.push(((/** @type {?} */ ((/** @type {?} */ (tNode))))).template_);\n        tNode = tNode.next;\n    }\n}\n/** @type {?} */\nconst TViewData = NG_DEV_MODE && createNamedArrayType('TViewData') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nlet TVIEWDATA_EMPTY;\n// can't initialize here or it will not be tree shaken, because\n// `LView` constructor could have side-effects.\n/**\n * This function clones a blueprint and creates TData.\n *\n * Simple slice will keep the same type, and we need it to be TData\n * @param {?} list\n * @return {?}\n */\nfunction cloneToTViewData(list) {\n    if (TVIEWDATA_EMPTY === undefined)\n        TVIEWDATA_EMPTY = new TViewData();\n    return (/** @type {?} */ (TVIEWDATA_EMPTY.concat(list)));\n}\n/** @type {?} */\nconst LViewBlueprint = NG_DEV_MODE && createNamedArrayType('LViewBlueprint') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nconst MatchesArray = NG_DEV_MODE && createNamedArrayType('MatchesArray') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nconst TViewComponents = NG_DEV_MODE && createNamedArrayType('TViewComponents') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nconst TNodeLocalNames = NG_DEV_MODE && createNamedArrayType('TNodeLocalNames') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nconst TNodeInitialInputs = NG_DEV_MODE && createNamedArrayType('TNodeInitialInputs') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nconst TNodeInitialData = NG_DEV_MODE && createNamedArrayType('TNodeInitialData') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nconst LCleanup = NG_DEV_MODE && createNamedArrayType('LCleanup') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/** @type {?} */\nconst TCleanup = NG_DEV_MODE && createNamedArrayType('TCleanup') || (/** @type {?} */ ((/** @type {?} */ (null))));\n/**\n * @param {?} lView\n * @return {?}\n */\nfunction attachLViewDebug(lView) {\n    attachDebugObject(lView, new LViewDebug(lView));\n}\n/**\n * @param {?} lContainer\n * @return {?}\n */\nfunction attachLContainerDebug(lContainer) {\n    attachDebugObject(lContainer, new LContainerDebug(lContainer));\n}\n/**\n * @param {?} obj\n * @return {?}\n */\nfunction toDebug(obj) {\n    if (obj) {\n        /** @type {?} */\n        const debug = ((/** @type {?} */ (obj))).debug;\n        assertDefined(debug, 'Object does not have a debug representation.');\n        return debug;\n    }\n    else {\n        return obj;\n    }\n}\n/**\n * Use this method to unwrap a native element in `LView` and convert it into HTML for easier\n * reading.\n *\n * @param {?} value possibly wrapped native DOM node.\n * @param {?=} includeChildren If `true` then the serialized HTML form will include child elements\n * (same\n * as `outerHTML`). If `false` then the serialized HTML form will only contain the element\n * itself\n * (will not serialize child elements).\n * @return {?}\n */\nfunction toHtml(value, includeChildren = false) {\n    /** @type {?} */\n    const node = (/** @type {?} */ (unwrapRNode(value)));\n    if (node) {\n        /** @type {?} */\n        const isTextNode = node.nodeType === Node.TEXT_NODE;\n        /** @type {?} */\n        const outerHTML = (isTextNode ? node.textContent : node.outerHTML) || '';\n        if (includeChildren || isTextNode) {\n            return outerHTML;\n        }\n        else {\n            /** @type {?} */\n            const innerHTML = '>' + node.innerHTML + '<';\n            return (outerHTML.split(innerHTML)[0]) + '>';\n        }\n    }\n    else {\n        return null;\n    }\n}\nclass LViewDebug {\n    /**\n     * @param {?} _raw_lView\n     */\n    constructor(_raw_lView) {\n        this._raw_lView = _raw_lView;\n    }\n    /**\n     * Flags associated with the `LView` unpacked into a more readable state.\n     * @return {?}\n     */\n    get flags() {\n        /** @type {?} */\n        const flags = this._raw_lView[FLAGS];\n        return {\n            __raw__flags__: flags,\n            initPhaseState: flags & 3 /* InitPhaseStateMask */,\n            creationMode: !!(flags & 4 /* CreationMode */),\n            firstViewPass: !!(flags & 8 /* FirstLViewPass */),\n            checkAlways: !!(flags & 16 /* CheckAlways */),\n            dirty: !!(flags & 64 /* Dirty */),\n            attached: !!(flags & 128 /* Attached */),\n            destroyed: !!(flags & 256 /* Destroyed */),\n            isRoot: !!(flags & 512 /* IsRoot */),\n            indexWithinInitPhase: flags >> 11 /* IndexWithinInitPhaseShift */,\n        };\n    }\n    /**\n     * @return {?}\n     */\n    get parent() {\n        return toDebug(this._raw_lView[PARENT]);\n    }\n    /**\n     * @return {?}\n     */\n    get host() {\n        return toHtml(this._raw_lView[HOST], true);\n    }\n    /**\n     * @return {?}\n     */\n    get html() {\n        return (this.nodes || []).map((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => toHtml(node.native, true))).join('');\n    }\n    /**\n     * @return {?}\n     */\n    get context() {\n        return this._raw_lView[CONTEXT];\n    }\n    /**\n     * The tree of nodes associated with the current `LView`. The nodes have been normalized into\n     * a\n     * tree structure with relevant details pulled out for readability.\n     * @return {?}\n     */\n    get nodes() {\n        /** @type {?} */\n        const lView = this._raw_lView;\n        /** @type {?} */\n        const tNode = lView[TVIEW].firstChild;\n        return toDebugNodes(tNode, lView);\n    }\n    /**\n     * @return {?}\n     */\n    get tView() {\n        return this._raw_lView[TVIEW];\n    }\n    /**\n     * @return {?}\n     */\n    get cleanup() {\n        return this._raw_lView[CLEANUP];\n    }\n    /**\n     * @return {?}\n     */\n    get injector() {\n        return this._raw_lView[INJECTOR$1];\n    }\n    /**\n     * @return {?}\n     */\n    get rendererFactory() {\n        return this._raw_lView[RENDERER_FACTORY];\n    }\n    /**\n     * @return {?}\n     */\n    get renderer() {\n        return this._raw_lView[RENDERER];\n    }\n    /**\n     * @return {?}\n     */\n    get sanitizer() {\n        return this._raw_lView[SANITIZER];\n    }\n    /**\n     * @return {?}\n     */\n    get childHead() {\n        return toDebug(this._raw_lView[CHILD_HEAD]);\n    }\n    /**\n     * @return {?}\n     */\n    get next() {\n        return toDebug(this._raw_lView[NEXT]);\n    }\n    /**\n     * @return {?}\n     */\n    get childTail() {\n        return toDebug(this._raw_lView[CHILD_TAIL]);\n    }\n    /**\n     * @return {?}\n     */\n    get declarationView() {\n        return toDebug(this._raw_lView[DECLARATION_VIEW]);\n    }\n    /**\n     * @return {?}\n     */\n    get queries() {\n        return this._raw_lView[QUERIES];\n    }\n    /**\n     * @return {?}\n     */\n    get tHost() {\n        return this._raw_lView[T_HOST];\n    }\n    /**\n     * Normalized view of child views (and containers) attached at this location.\n     * @return {?}\n     */\n    get childViews() {\n        /** @type {?} */\n        const childViews = [];\n        /** @type {?} */\n        let child = this.childHead;\n        while (child) {\n            childViews.push(child);\n            child = child.next;\n        }\n        return childViews;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    LViewDebug.prototype._raw_lView;\n}\n/**\n * @record\n */\nfunction DebugNode() { }\nif (false) {\n    /** @type {?} */\n    DebugNode.prototype.html;\n    /** @type {?} */\n    DebugNode.prototype.native;\n    /** @type {?} */\n    DebugNode.prototype.nodes;\n    /** @type {?} */\n    DebugNode.prototype.component;\n}\n/**\n * Turns a flat list of nodes into a tree by walking the associated `TNode` tree.\n *\n * @param {?} tNode\n * @param {?} lView\n * @return {?}\n */\nfunction toDebugNodes(tNode, lView) {\n    if (tNode) {\n        /** @type {?} */\n        const debugNodes = [];\n        /** @type {?} */\n        let tNodeCursor = tNode;\n        while (tNodeCursor) {\n            debugNodes.push(buildDebugNode(tNodeCursor, lView, tNodeCursor.index));\n            tNodeCursor = tNodeCursor.next;\n        }\n        return debugNodes;\n    }\n    else {\n        return null;\n    }\n}\n/**\n * @param {?} tNode\n * @param {?} lView\n * @param {?} nodeIndex\n * @return {?}\n */\nfunction buildDebugNode(tNode, lView, nodeIndex) {\n    /** @type {?} */\n    const rawValue = lView[nodeIndex];\n    /** @type {?} */\n    const native = unwrapRNode(rawValue);\n    /** @type {?} */\n    const componentLViewDebug = toDebug(readLViewValue(rawValue));\n    return {\n        html: toHtml(native),\n        native: (/** @type {?} */ (native)),\n        nodes: toDebugNodes(tNode.child, lView),\n        component: componentLViewDebug,\n    };\n}\nclass LContainerDebug {\n    /**\n     * @param {?} _raw_lContainer\n     */\n    constructor(_raw_lContainer) {\n        this._raw_lContainer = _raw_lContainer;\n    }\n    /**\n     * @return {?}\n     */\n    get hasTransplantedViews() {\n        return this._raw_lContainer[HAS_TRANSPLANTED_VIEWS];\n    }\n    /**\n     * @return {?}\n     */\n    get views() {\n        return this._raw_lContainer.slice(CONTAINER_HEADER_OFFSET)\n            .map((/** @type {?} */ (toDebug)));\n    }\n    /**\n     * @return {?}\n     */\n    get parent() {\n        return toDebug(this._raw_lContainer[PARENT]);\n    }\n    /**\n     * @return {?}\n     */\n    get movedViews() {\n        return this._raw_lContainer[MOVED_VIEWS];\n    }\n    /**\n     * @return {?}\n     */\n    get host() {\n        return this._raw_lContainer[HOST];\n    }\n    /**\n     * @return {?}\n     */\n    get native() {\n        return this._raw_lContainer[NATIVE];\n    }\n    /**\n     * @return {?}\n     */\n    get next() {\n        return toDebug(this._raw_lContainer[NEXT]);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    LContainerDebug.prototype._raw_lContainer;\n}\n/**\n * Return an `LView` value if found.\n *\n * @param {?} value `LView` if any\n * @return {?}\n */\nfunction readLViewValue(value) {\n    while (Array.isArray(value)) {\n        // This check is not quite right, as it does not take into account `StylingContext`\n        // This is why it is in debug, not in util.ts\n        if (value.length >= HEADER_OFFSET - 1)\n            return (/** @type {?} */ (value));\n        value = value[HOST];\n    }\n    return null;\n}\nclass I18NDebugItem {\n    /**\n     * @param {?} __raw_opCode\n     * @param {?} _lView\n     * @param {?} nodeIndex\n     * @param {?} type\n     */\n    constructor(__raw_opCode, _lView, nodeIndex, type) {\n        this.__raw_opCode = __raw_opCode;\n        this._lView = _lView;\n        this.nodeIndex = nodeIndex;\n        this.type = type;\n    }\n    /**\n     * @return {?}\n     */\n    get tNode() {\n        return getTNode(this._lView[TVIEW], this.nodeIndex);\n    }\n}\nif (false) {\n    /** @type {?} */\n    I18NDebugItem.prototype.__raw_opCode;\n    /**\n     * @type {?}\n     * @private\n     */\n    I18NDebugItem.prototype._lView;\n    /** @type {?} */\n    I18NDebugItem.prototype.nodeIndex;\n    /** @type {?} */\n    I18NDebugItem.prototype.type;\n    /* Skipping unhandled member: [key: string]: any;*/\n}\n/**\n * Turns a list of \"Create\" & \"Update\" OpCodes into a human-readable list of operations for\n * debugging purposes.\n * @param {?} mutateOpCodes mutation opCodes to read\n * @param {?} updateOpCodes update opCodes to read\n * @param {?} icus list of ICU expressions\n * @param {?} lView The view the opCodes are acting on\n * @return {?}\n */\nfunction attachI18nOpCodesDebug(mutateOpCodes, updateOpCodes, icus, lView) {\n    attachDebugObject(mutateOpCodes, new I18nMutateOpCodesDebug(mutateOpCodes, lView));\n    attachDebugObject(updateOpCodes, new I18nUpdateOpCodesDebug(updateOpCodes, icus, lView));\n    if (icus) {\n        icus.forEach((/**\n         * @param {?} icu\n         * @return {?}\n         */\n        icu => {\n            icu.create.forEach((/**\n             * @param {?} icuCase\n             * @return {?}\n             */\n            icuCase => {\n                attachDebugObject(icuCase, new I18nMutateOpCodesDebug(icuCase, lView));\n            }));\n            icu.update.forEach((/**\n             * @param {?} icuCase\n             * @return {?}\n             */\n            icuCase => {\n                attachDebugObject(icuCase, new I18nUpdateOpCodesDebug(icuCase, icus, lView));\n            }));\n        }));\n    }\n}\nclass I18nMutateOpCodesDebug {\n    /**\n     * @param {?} __raw_opCodes\n     * @param {?} __lView\n     */\n    constructor(__raw_opCodes, __lView) {\n        this.__raw_opCodes = __raw_opCodes;\n        this.__lView = __lView;\n    }\n    /**\n     * A list of operation information about how the OpCodes will act on the view.\n     * @return {?}\n     */\n    get operations() {\n        const { __lView, __raw_opCodes } = this;\n        /** @type {?} */\n        const results = [];\n        for (let i = 0; i < __raw_opCodes.length; i++) {\n            /** @type {?} */\n            const opCode = __raw_opCodes[i];\n            /** @type {?} */\n            let result;\n            if (typeof opCode === 'string') {\n                result = {\n                    __raw_opCode: opCode,\n                    type: 'Create Text Node',\n                    nodeIndex: __raw_opCodes[++i],\n                    text: opCode,\n                };\n            }\n            if (typeof opCode === 'number') {\n                switch (opCode & 7 /* MASK_OPCODE */) {\n                    case 1 /* AppendChild */:\n                        /** @type {?} */\n                        const destinationNodeIndex = opCode >>> 17 /* SHIFT_PARENT */;\n                        result = new I18NDebugItem(opCode, __lView, destinationNodeIndex, 'AppendChild');\n                        break;\n                    case 0 /* Select */:\n                        /** @type {?} */\n                        const nodeIndex = opCode >>> 3 /* SHIFT_REF */;\n                        result = new I18NDebugItem(opCode, __lView, nodeIndex, 'Select');\n                        break;\n                    case 5 /* ElementEnd */:\n                        /** @type {?} */\n                        let elementIndex = opCode >>> 3 /* SHIFT_REF */;\n                        result = new I18NDebugItem(opCode, __lView, elementIndex, 'ElementEnd');\n                        break;\n                    case 4 /* Attr */:\n                        elementIndex = opCode >>> 3 /* SHIFT_REF */;\n                        result = new I18NDebugItem(opCode, __lView, elementIndex, 'Attr');\n                        result['attrName'] = __raw_opCodes[++i];\n                        result['attrValue'] = __raw_opCodes[++i];\n                        break;\n                }\n            }\n            if (!result) {\n                switch (opCode) {\n                    case COMMENT_MARKER:\n                        result = {\n                            __raw_opCode: opCode,\n                            type: 'COMMENT_MARKER',\n                            commentValue: __raw_opCodes[++i],\n                            nodeIndex: __raw_opCodes[++i],\n                        };\n                        break;\n                    case ELEMENT_MARKER:\n                        result = {\n                            __raw_opCode: opCode,\n                            type: 'ELEMENT_MARKER',\n                        };\n                        break;\n                }\n            }\n            if (!result) {\n                result = {\n                    __raw_opCode: opCode,\n                    type: 'Unknown Op Code',\n                    code: opCode,\n                };\n            }\n            results.push(result);\n        }\n        return results;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    I18nMutateOpCodesDebug.prototype.__raw_opCodes;\n    /**\n     * @type {?}\n     * @private\n     */\n    I18nMutateOpCodesDebug.prototype.__lView;\n}\nclass I18nUpdateOpCodesDebug {\n    /**\n     * @param {?} __raw_opCodes\n     * @param {?} icus\n     * @param {?} __lView\n     */\n    constructor(__raw_opCodes, icus, __lView) {\n        this.__raw_opCodes = __raw_opCodes;\n        this.icus = icus;\n        this.__lView = __lView;\n    }\n    /**\n     * A list of operation information about how the OpCodes will act on the view.\n     * @return {?}\n     */\n    get operations() {\n        const { __lView, __raw_opCodes, icus } = this;\n        /** @type {?} */\n        const results = [];\n        for (let i = 0; i < __raw_opCodes.length; i++) {\n            // bit code to check if we should apply the next update\n            /** @type {?} */\n            const checkBit = (/** @type {?} */ (__raw_opCodes[i]));\n            // Number of opCodes to skip until next set of update codes\n            /** @type {?} */\n            const skipCodes = (/** @type {?} */ (__raw_opCodes[++i]));\n            /** @type {?} */\n            let value = '';\n            for (let j = i + 1; j <= (i + skipCodes); j++) {\n                /** @type {?} */\n                const opCode = __raw_opCodes[j];\n                if (typeof opCode === 'string') {\n                    value += opCode;\n                }\n                else if (typeof opCode == 'number') {\n                    if (opCode < 0) {\n                        // It's a binding index whose value is negative\n                        // We cannot know the value of the binding so we only show the index\n                        value += `�${-opCode - 1}�`;\n                    }\n                    else {\n                        /** @type {?} */\n                        const nodeIndex = opCode >>> 2 /* SHIFT_REF */;\n                        /** @type {?} */\n                        let tIcuIndex;\n                        /** @type {?} */\n                        let tIcu;\n                        switch (opCode & 3 /* MASK_OPCODE */) {\n                            case 1 /* Attr */:\n                                /** @type {?} */\n                                const attrName = (/** @type {?} */ (__raw_opCodes[++j]));\n                                /** @type {?} */\n                                const sanitizeFn = __raw_opCodes[++j];\n                                results.push({\n                                    __raw_opCode: opCode,\n                                    checkBit,\n                                    type: 'Attr',\n                                    attrValue: value,\n                                    attrName,\n                                    sanitizeFn,\n                                });\n                                break;\n                            case 0 /* Text */:\n                                results.push({\n                                    __raw_opCode: opCode,\n                                    checkBit,\n                                    type: 'Text',\n                                    nodeIndex,\n                                    text: value,\n                                });\n                                break;\n                            case 2 /* IcuSwitch */:\n                                tIcuIndex = (/** @type {?} */ (__raw_opCodes[++j]));\n                                tIcu = (/** @type {?} */ (icus))[tIcuIndex];\n                                /** @type {?} */\n                                let result = new I18NDebugItem(opCode, __lView, nodeIndex, 'IcuSwitch');\n                                result['tIcuIndex'] = tIcuIndex;\n                                result['checkBit'] = checkBit;\n                                result['mainBinding'] = value;\n                                result['tIcu'] = tIcu;\n                                results.push(result);\n                                break;\n                            case 3 /* IcuUpdate */:\n                                tIcuIndex = (/** @type {?} */ (__raw_opCodes[++j]));\n                                tIcu = (/** @type {?} */ (icus))[tIcuIndex];\n                                result = new I18NDebugItem(opCode, __lView, nodeIndex, 'IcuUpdate');\n                                result['tIcuIndex'] = tIcuIndex;\n                                result['checkBit'] = checkBit;\n                                result['tIcu'] = tIcu;\n                                results.push(result);\n                                break;\n                        }\n                    }\n                }\n            }\n            i += skipCodes;\n        }\n        return results;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    I18nUpdateOpCodesDebug.prototype.__raw_opCodes;\n    /**\n     * @type {?}\n     * @private\n     */\n    I18nUpdateOpCodesDebug.prototype.icus;\n    /**\n     * @type {?}\n     * @private\n     */\n    I18nUpdateOpCodesDebug.prototype.__lView;\n}\n/**\n * @record\n */\nfunction I18nOpCodesDebug() { }\nif (false) {\n    /** @type {?} */\n    I18nOpCodesDebug.prototype.operations;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/shared.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nconst ɵ0$4 = /**\n * @return {?}\n */\n() => Promise.resolve(null);\n/**\n * A permanent marker promise which signifies that the current CD tree is\n * clean.\n * @type {?}\n */\nconst _CLEAN_PROMISE = ((ɵ0$4))();\n/**\n * Process the `TView.expandoInstructions`. (Execute the `hostBindings`.)\n *\n * @param {?} tView `TView` containing the `expandoInstructions`\n * @param {?} lView `LView` associated with the `TView`\n * @return {?}\n */\nfunction setHostBindingsByExecutingExpandoInstructions(tView, lView) {\n    ngDevMode && assertSame(tView, lView[TVIEW], '`LView` is not associated with the `TView`!');\n    try {\n        /** @type {?} */\n        const expandoInstructions = tView.expandoInstructions;\n        if (expandoInstructions !== null) {\n            /** @type {?} */\n            let bindingRootIndex = tView.expandoStartIndex;\n            /** @type {?} */\n            let currentDirectiveIndex = -1;\n            /** @type {?} */\n            let currentElementIndex = -1;\n            // TODO(misko): PERF It is possible to get here with `TView.expandoInstructions` containing no\n            // functions to execute. This is wasteful as there is no work to be done, but we still need\n            // to iterate over the instructions.\n            // In example of this is in this test: `host_binding_spec.ts`\n            // `fit('should not cause problems if detectChanges is called when a property updates', ...`\n            // In the above test we get here with expando [0, 0, 1] which requires a lot of processing but\n            // there is no function to execute.\n            for (let i = 0; i < expandoInstructions.length; i++) {\n                /** @type {?} */\n                const instruction = expandoInstructions[i];\n                if (typeof instruction === 'number') {\n                    if (instruction <= 0) {\n                        // Negative numbers mean that we are starting new EXPANDO block and need to update\n                        // the current element and directive index.\n                        // Important: In JS `-x` and `0-x` is not the same! If `x===0` then `-x` will produce\n                        // `-0` which requires non standard math arithmetic and it can prevent VM optimizations.\n                        // `0-0` will always produce `0` and will not cause a potential deoptimization in VM.\n                        // TODO(misko): PERF This should be refactored to use `~instruction` as that does not\n                        // suffer from `-0` and it is faster/more compact.\n                        currentElementIndex = 0 - instruction;\n                        setSelectedIndex(currentElementIndex);\n                        // Injector block and providers are taken into account.\n                        /** @type {?} */\n                        const providerCount = ((/** @type {?} */ (expandoInstructions[++i])));\n                        bindingRootIndex += INJECTOR_BLOOM_PARENT_SIZE + providerCount;\n                        currentDirectiveIndex = bindingRootIndex;\n                    }\n                    else {\n                        // This is either the injector size (so the binding root can skip over directives\n                        // and get to the first set of host bindings on this node) or the host var count\n                        // (to get to the next set of host bindings on this node).\n                        bindingRootIndex += instruction;\n                    }\n                }\n                else {\n                    // If it's not a number, it's a host binding function that needs to be executed.\n                    if (instruction !== null) {\n                        setBindingRootForHostBindings(bindingRootIndex, currentDirectiveIndex);\n                        /** @type {?} */\n                        const hostCtx = lView[currentDirectiveIndex];\n                        instruction(2 /* Update */, hostCtx);\n                    }\n                    // TODO(misko): PERF Relying on incrementing the `currentDirectiveIndex` here is\n                    // sub-optimal. The implications are that if we have a lot of directives but none of them\n                    // have host bindings we nevertheless need to iterate over the expando instructions to\n                    // update the counter. It would be much better if we could encode the\n                    // `currentDirectiveIndex` into the `expandoInstruction` array so that we only need to\n                    // iterate over those directives which actually have `hostBindings`.\n                    currentDirectiveIndex++;\n                }\n            }\n        }\n    }\n    finally {\n        setSelectedIndex(-1);\n    }\n}\n/**\n * Refreshes all content queries declared by directives in a given view\n * @param {?} tView\n * @param {?} lView\n * @return {?}\n */\nfunction refreshContentQueries(tView, lView) {\n    /** @type {?} */\n    const contentQueries = tView.contentQueries;\n    if (contentQueries !== null) {\n        for (let i = 0; i < contentQueries.length; i += 2) {\n            /** @type {?} */\n            const queryStartIdx = contentQueries[i];\n            /** @type {?} */\n            const directiveDefIdx = contentQueries[i + 1];\n            if (directiveDefIdx !== -1) {\n                /** @type {?} */\n                const directiveDef = (/** @type {?} */ (tView.data[directiveDefIdx]));\n                ngDevMode &&\n                    assertDefined(directiveDef.contentQueries, 'contentQueries function should be defined');\n                setCurrentQueryIndex(queryStartIdx);\n                (/** @type {?} */ (directiveDef.contentQueries))(2 /* Update */, lView[directiveDefIdx], directiveDefIdx);\n            }\n        }\n    }\n}\n/**\n * Refreshes child components in the current view (update mode).\n * @param {?} hostLView\n * @param {?} components\n * @return {?}\n */\nfunction refreshChildComponents(hostLView, components) {\n    for (let i = 0; i < components.length; i++) {\n        refreshComponent(hostLView, components[i]);\n    }\n}\n/**\n * Renders child components in the current view (creation mode).\n * @param {?} hostLView\n * @param {?} components\n * @return {?}\n */\nfunction renderChildComponents(hostLView, components) {\n    for (let i = 0; i < components.length; i++) {\n        renderComponent(hostLView, components[i]);\n    }\n}\n/**\n * Creates a native element from a tag name, using a renderer.\n * @param {?} name the tag name\n * @param {?} renderer A renderer to use\n * @param {?} namespace\n * @return {?} the element created\n */\nfunction elementCreate(name, renderer, namespace) {\n    if (isProceduralRenderer(renderer)) {\n        return renderer.createElement(name, namespace);\n    }\n    else {\n        return namespace === null ? renderer.createElement(name) :\n            renderer.createElementNS(namespace, name);\n    }\n}\n/**\n * @template T\n * @param {?} parentLView\n * @param {?} tView\n * @param {?} context\n * @param {?} flags\n * @param {?} host\n * @param {?} tHostNode\n * @param {?=} rendererFactory\n * @param {?=} renderer\n * @param {?=} sanitizer\n * @param {?=} injector\n * @return {?}\n */\nfunction createLView(parentLView, tView, context, flags, host, tHostNode, rendererFactory, renderer, sanitizer, injector) {\n    /** @type {?} */\n    const lView = ngDevMode ? cloneToLViewFromTViewBlueprint(tView) : (/** @type {?} */ (tView.blueprint.slice()));\n    lView[HOST] = host;\n    lView[FLAGS] = flags | 4 /* CreationMode */ | 128 /* Attached */ | 8 /* FirstLViewPass */;\n    resetPreOrderHookFlags(lView);\n    lView[PARENT] = lView[DECLARATION_VIEW] = parentLView;\n    lView[CONTEXT] = context;\n    lView[RENDERER_FACTORY] = (/** @type {?} */ ((rendererFactory || parentLView && parentLView[RENDERER_FACTORY])));\n    ngDevMode && assertDefined(lView[RENDERER_FACTORY], 'RendererFactory is required');\n    lView[RENDERER] = (/** @type {?} */ ((renderer || parentLView && parentLView[RENDERER])));\n    ngDevMode && assertDefined(lView[RENDERER], 'Renderer is required');\n    lView[SANITIZER] = sanitizer || parentLView && parentLView[SANITIZER] || (/** @type {?} */ (null));\n    lView[(/** @type {?} */ (INJECTOR$1))] = injector || parentLView && parentLView[INJECTOR$1] || null;\n    lView[T_HOST] = tHostNode;\n    ngDevMode &&\n        assertEqual(tView.type == 2 /* Embedded */ ? parentLView !== null : true, true, 'Embedded views must have parentLView');\n    lView[DECLARATION_COMPONENT_VIEW] =\n        tView.type == 2 /* Embedded */ ? (/** @type {?} */ (parentLView))[DECLARATION_COMPONENT_VIEW] : lView;\n    ngDevMode && attachLViewDebug(lView);\n    return lView;\n}\n/**\n * @param {?} tView\n * @param {?} tHostNode\n * @param {?} index\n * @param {?} type\n * @param {?} name\n * @param {?} attrs\n * @return {?}\n */\nfunction getOrCreateTNode(tView, tHostNode, index, type, name, attrs) {\n    // Keep this function short, so that the VM will inline it.\n    /** @type {?} */\n    const adjustedIndex = index + HEADER_OFFSET;\n    /** @type {?} */\n    const tNode = (/** @type {?} */ (tView.data[adjustedIndex])) ||\n        createTNodeAtIndex(tView, tHostNode, adjustedIndex, type, name, attrs);\n    setPreviousOrParentTNode(tNode, true);\n    return (/** @type {?} */ (tNode));\n}\n/**\n * @param {?} tView\n * @param {?} tHostNode\n * @param {?} adjustedIndex\n * @param {?} type\n * @param {?} name\n * @param {?} attrs\n * @return {?}\n */\nfunction createTNodeAtIndex(tView, tHostNode, adjustedIndex, type, name, attrs) {\n    /** @type {?} */\n    const previousOrParentTNode = getPreviousOrParentTNode();\n    /** @type {?} */\n    const isParent = getIsParent();\n    /** @type {?} */\n    const parent = isParent ? previousOrParentTNode : previousOrParentTNode && previousOrParentTNode.parent;\n    // Parents cannot cross component boundaries because components will be used in multiple places,\n    // so it's only set if the view is the same.\n    /** @type {?} */\n    const parentInSameView = parent && parent !== tHostNode;\n    /** @type {?} */\n    const tParentNode = parentInSameView ? (/** @type {?} */ (parent)) : null;\n    /** @type {?} */\n    const tNode = tView.data[adjustedIndex] =\n        createTNode(tView, tParentNode, type, adjustedIndex, name, attrs);\n    // Assign a pointer to the first child node of a given view. The first node is not always the one\n    // at index 0, in case of i18n, index 0 can be the instruction `i18nStart` and the first node has\n    // the index 1 or more, so we can't just check node index.\n    if (tView.firstChild === null) {\n        tView.firstChild = tNode;\n    }\n    if (previousOrParentTNode) {\n        if (isParent && previousOrParentTNode.child == null &&\n            (tNode.parent !== null || previousOrParentTNode.type === 2 /* View */)) {\n            // We are in the same view, which means we are adding content node to the parent view.\n            previousOrParentTNode.child = tNode;\n        }\n        else if (!isParent) {\n            previousOrParentTNode.next = tNode;\n        }\n    }\n    return tNode;\n}\n/**\n * @param {?} tView\n * @param {?} tParentNode\n * @param {?} index\n * @param {?} lView\n * @return {?}\n */\nfunction assignTViewNodeToLView(tView, tParentNode, index, lView) {\n    // View nodes are not stored in data because they can be added / removed at runtime (which\n    // would cause indices to change). Their TNodes are instead stored in tView.node.\n    /** @type {?} */\n    let tNode = tView.node;\n    if (tNode == null) {\n        ngDevMode && tParentNode &&\n            assertNodeOfPossibleTypes(tParentNode, 3 /* Element */, 0 /* Container */);\n        tView.node = tNode = (/** @type {?} */ (createTNode(tView, (/** @type {?} */ (tParentNode)), //\n        2 /* View */, index, null, null)));\n    }\n    lView[T_HOST] = (/** @type {?} */ (tNode));\n}\n/**\n * When elements are created dynamically after a view blueprint is created (e.g. through\n * i18nApply() or ComponentFactory.create), we need to adjust the blueprint for future\n * template passes.\n *\n * @param {?} tView `TView` associated with `LView`\n * @param {?} lView\n * @param {?} numSlotsToAlloc The number of slots to alloc in the LView, should be >0\n * @return {?}\n */\nfunction allocExpando(tView, lView, numSlotsToAlloc) {\n    ngDevMode &&\n        assertGreaterThan(numSlotsToAlloc, 0, 'The number of slots to alloc should be greater than 0');\n    if (numSlotsToAlloc > 0) {\n        if (tView.firstCreatePass) {\n            for (let i = 0; i < numSlotsToAlloc; i++) {\n                tView.blueprint.push(null);\n                tView.data.push(null);\n                lView.push(null);\n            }\n            // We should only increment the expando start index if there aren't already directives\n            // and injectors saved in the \"expando\" section\n            if (!tView.expandoInstructions) {\n                tView.expandoStartIndex += numSlotsToAlloc;\n            }\n            else {\n                // Since we're adding the dynamic nodes into the expando section, we need to let the host\n                // bindings know that they should skip x slots\n                tView.expandoInstructions.push(numSlotsToAlloc);\n            }\n        }\n    }\n}\n//////////////////////////\n//// Render\n//////////////////////////\n/**\n * Processes a view in the creation mode. This includes a number of steps in a specific order:\n * - creating view query functions (if any);\n * - executing a template function in the creation mode;\n * - updating static queries (if any);\n * - creating child components defined in a given view.\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} context\n * @return {?}\n */\nfunction renderView(tView, lView, context) {\n    ngDevMode && assertEqual(isCreationMode(lView), true, 'Should be run in creation mode');\n    enterView(lView, lView[T_HOST]);\n    try {\n        /** @type {?} */\n        const viewQuery = tView.viewQuery;\n        if (viewQuery !== null) {\n            executeViewQueryFn(1 /* Create */, viewQuery, context);\n        }\n        // Execute a template associated with this view, if it exists. A template function might not be\n        // defined for the root component views.\n        /** @type {?} */\n        const templateFn = tView.template;\n        if (templateFn !== null) {\n            executeTemplate(tView, lView, templateFn, 1 /* Create */, context);\n        }\n        // This needs to be set before children are processed to support recursive components.\n        // This must be set to false immediately after the first creation run because in an\n        // ngFor loop, all the views will be created together before update mode runs and turns\n        // off firstCreatePass. If we don't set it here, instances will perform directive\n        // matching, etc again and again.\n        if (tView.firstCreatePass) {\n            tView.firstCreatePass = false;\n        }\n        // We resolve content queries specifically marked as `static` in creation mode. Dynamic\n        // content queries are resolved during change detection (i.e. update mode), after embedded\n        // views are refreshed (see block above).\n        if (tView.staticContentQueries) {\n            refreshContentQueries(tView, lView);\n        }\n        // We must materialize query results before child components are processed\n        // in case a child component has projected a container. The LContainer needs\n        // to exist so the embedded views are properly attached by the container.\n        if (tView.staticViewQueries) {\n            executeViewQueryFn(2 /* Update */, (/** @type {?} */ (tView.viewQuery)), context);\n        }\n        // Render child component views.\n        /** @type {?} */\n        const components = tView.components;\n        if (components !== null) {\n            renderChildComponents(lView, components);\n        }\n    }\n    catch (error) {\n        // If we didn't manage to get past the first template pass due to\n        // an error, mark the view as corrupted so we can try to recover.\n        if (tView.firstCreatePass) {\n            tView.incompleteFirstPass = true;\n        }\n        throw error;\n    }\n    finally {\n        lView[FLAGS] &= ~4 /* CreationMode */;\n        leaveView();\n    }\n}\n/**\n * Processes a view in update mode. This includes a number of steps in a specific order:\n * - executing a template function in update mode;\n * - executing hooks;\n * - refreshing queries;\n * - setting host bindings;\n * - refreshing child (embedded and component) views.\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} templateFn\n * @param {?} context\n * @return {?}\n */\nfunction refreshView(tView, lView, templateFn, context) {\n    ngDevMode && assertEqual(isCreationMode(lView), false, 'Should be run in update mode');\n    /** @type {?} */\n    const flags = lView[FLAGS];\n    if ((flags & 256 /* Destroyed */) === 256 /* Destroyed */)\n        return;\n    enterView(lView, lView[T_HOST]);\n    /** @type {?} */\n    const checkNoChangesMode = getCheckNoChangesMode();\n    try {\n        resetPreOrderHookFlags(lView);\n        setBindingIndex(tView.bindingStartIndex);\n        if (templateFn !== null) {\n            executeTemplate(tView, lView, templateFn, 2 /* Update */, context);\n        }\n        /** @type {?} */\n        const hooksInitPhaseCompleted = (flags & 3 /* InitPhaseStateMask */) === 3 /* InitPhaseCompleted */;\n        // execute pre-order hooks (OnInit, OnChanges, DoCheck)\n        // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n        if (!checkNoChangesMode) {\n            if (hooksInitPhaseCompleted) {\n                /** @type {?} */\n                const preOrderCheckHooks = tView.preOrderCheckHooks;\n                if (preOrderCheckHooks !== null) {\n                    executeCheckHooks(lView, preOrderCheckHooks, null);\n                }\n            }\n            else {\n                /** @type {?} */\n                const preOrderHooks = tView.preOrderHooks;\n                if (preOrderHooks !== null) {\n                    executeInitAndCheckHooks(lView, preOrderHooks, 0 /* OnInitHooksToBeRun */, null);\n                }\n                incrementInitPhaseFlags(lView, 0 /* OnInitHooksToBeRun */);\n            }\n        }\n        // First mark transplanted views that are declared in this lView as needing a refresh at their\n        // insertion points. This is needed to avoid the situation where the template is defined in this\n        // `LView` but its declaration appears after the insertion component.\n        markTransplantedViewsForRefresh(lView);\n        refreshEmbeddedViews(lView);\n        // Content query results must be refreshed before content hooks are called.\n        if (tView.contentQueries !== null) {\n            refreshContentQueries(tView, lView);\n        }\n        // execute content hooks (AfterContentInit, AfterContentChecked)\n        // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n        if (!checkNoChangesMode) {\n            if (hooksInitPhaseCompleted) {\n                /** @type {?} */\n                const contentCheckHooks = tView.contentCheckHooks;\n                if (contentCheckHooks !== null) {\n                    executeCheckHooks(lView, contentCheckHooks);\n                }\n            }\n            else {\n                /** @type {?} */\n                const contentHooks = tView.contentHooks;\n                if (contentHooks !== null) {\n                    executeInitAndCheckHooks(lView, contentHooks, 1 /* AfterContentInitHooksToBeRun */);\n                }\n                incrementInitPhaseFlags(lView, 1 /* AfterContentInitHooksToBeRun */);\n            }\n        }\n        setHostBindingsByExecutingExpandoInstructions(tView, lView);\n        // Refresh child component views.\n        /** @type {?} */\n        const components = tView.components;\n        if (components !== null) {\n            refreshChildComponents(lView, components);\n        }\n        // View queries must execute after refreshing child components because a template in this view\n        // could be inserted in a child component. If the view query executes before child component\n        // refresh, the template might not yet be inserted.\n        /** @type {?} */\n        const viewQuery = tView.viewQuery;\n        if (viewQuery !== null) {\n            executeViewQueryFn(2 /* Update */, viewQuery, context);\n        }\n        // execute view hooks (AfterViewInit, AfterViewChecked)\n        // PERF WARNING: do NOT extract this to a separate function without running benchmarks\n        if (!checkNoChangesMode) {\n            if (hooksInitPhaseCompleted) {\n                /** @type {?} */\n                const viewCheckHooks = tView.viewCheckHooks;\n                if (viewCheckHooks !== null) {\n                    executeCheckHooks(lView, viewCheckHooks);\n                }\n            }\n            else {\n                /** @type {?} */\n                const viewHooks = tView.viewHooks;\n                if (viewHooks !== null) {\n                    executeInitAndCheckHooks(lView, viewHooks, 2 /* AfterViewInitHooksToBeRun */);\n                }\n                incrementInitPhaseFlags(lView, 2 /* AfterViewInitHooksToBeRun */);\n            }\n        }\n        if (tView.firstUpdatePass === true) {\n            // We need to make sure that we only flip the flag on successful `refreshView` only\n            // Don't do this in `finally` block.\n            // If we did this in `finally` block then an exception could block the execution of styling\n            // instructions which in turn would be unable to insert themselves into the styling linked\n            // list. The result of this would be that if the exception would not be throw on subsequent CD\n            // the styling would be unable to process it data and reflect to the DOM.\n            tView.firstUpdatePass = false;\n        }\n        // Do not reset the dirty state when running in check no changes mode. We don't want components\n        // to behave differently depending on whether check no changes is enabled or not. For example:\n        // Marking an OnPush component as dirty from within the `ngAfterViewInit` hook in order to\n        // refresh a `NgClass` binding should work. If we would reset the dirty state in the check\n        // no changes cycle, the component would be not be dirty for the next update pass. This would\n        // be different in production mode where the component dirty state is not reset.\n        if (!checkNoChangesMode) {\n            lView[FLAGS] &= ~(64 /* Dirty */ | 8 /* FirstLViewPass */);\n        }\n        if (lView[FLAGS] & 1024 /* RefreshTransplantedView */) {\n            lView[FLAGS] &= ~1024 /* RefreshTransplantedView */;\n            updateTransplantedViewCount((/** @type {?} */ (lView[PARENT])), -1);\n        }\n    }\n    finally {\n        leaveView();\n    }\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} templateFn\n * @param {?} context\n * @return {?}\n */\nfunction renderComponentOrTemplate(tView, lView, templateFn, context) {\n    /** @type {?} */\n    const rendererFactory = lView[RENDERER_FACTORY];\n    /** @type {?} */\n    const normalExecutionPath = !getCheckNoChangesMode();\n    /** @type {?} */\n    const creationModeIsActive = isCreationMode(lView);\n    try {\n        if (normalExecutionPath && !creationModeIsActive && rendererFactory.begin) {\n            rendererFactory.begin();\n        }\n        if (creationModeIsActive) {\n            renderView(tView, lView, context);\n        }\n        refreshView(tView, lView, templateFn, context);\n    }\n    finally {\n        if (normalExecutionPath && !creationModeIsActive && rendererFactory.end) {\n            rendererFactory.end();\n        }\n    }\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} templateFn\n * @param {?} rf\n * @param {?} context\n * @return {?}\n */\nfunction executeTemplate(tView, lView, templateFn, rf, context) {\n    /** @type {?} */\n    const prevSelectedIndex = getSelectedIndex();\n    try {\n        setSelectedIndex(-1);\n        if (rf & 2 /* Update */ && lView.length > HEADER_OFFSET) {\n            // When we're updating, inherently select 0 so we don't\n            // have to generate that instruction for most update blocks.\n            selectIndexInternal(tView, lView, 0, getCheckNoChangesMode());\n        }\n        templateFn(rf, context);\n    }\n    finally {\n        setSelectedIndex(prevSelectedIndex);\n    }\n}\n//////////////////////////\n//// Element\n//////////////////////////\n/**\n * @param {?} tView\n * @param {?} tNode\n * @param {?} lView\n * @return {?}\n */\nfunction executeContentQueries(tView, tNode, lView) {\n    if (isContentQueryHost(tNode)) {\n        /** @type {?} */\n        const start = tNode.directiveStart;\n        /** @type {?} */\n        const end = tNode.directiveEnd;\n        for (let directiveIndex = start; directiveIndex < end; directiveIndex++) {\n            /** @type {?} */\n            const def = (/** @type {?} */ (tView.data[directiveIndex]));\n            if (def.contentQueries) {\n                def.contentQueries(1 /* Create */, lView[directiveIndex], directiveIndex);\n            }\n        }\n    }\n}\n/**\n * Creates directive instances.\n * @param {?} tView\n * @param {?} lView\n * @param {?} tNode\n * @return {?}\n */\nfunction createDirectivesInstances(tView, lView, tNode) {\n    if (!getBindingsEnabled())\n        return;\n    instantiateAllDirectives(tView, lView, tNode, getNativeByTNode(tNode, lView));\n    if ((tNode.flags & 128 /* hasHostBindings */) === 128 /* hasHostBindings */) {\n        invokeDirectivesHostBindings(tView, lView, tNode);\n    }\n}\n/**\n * Takes a list of local names and indices and pushes the resolved local variable values\n * to LView in the same order as they are loaded in the template with load().\n * @param {?} viewData\n * @param {?} tNode\n * @param {?=} localRefExtractor\n * @return {?}\n */\nfunction saveResolvedLocalsInData(viewData, tNode, localRefExtractor = getNativeByTNode) {\n    /** @type {?} */\n    const localNames = tNode.localNames;\n    if (localNames !== null) {\n        /** @type {?} */\n        let localIndex = tNode.index + 1;\n        for (let i = 0; i < localNames.length; i += 2) {\n            /** @type {?} */\n            const index = (/** @type {?} */ (localNames[i + 1]));\n            /** @type {?} */\n            const value = index === -1 ?\n                localRefExtractor((/** @type {?} */ (tNode)), viewData) :\n                viewData[index];\n            viewData[localIndex++] = value;\n        }\n    }\n}\n/**\n * Gets TView from a template function or creates a new TView\n * if it doesn't already exist.\n *\n * @param {?} def ComponentDef\n * @return {?} TView\n */\nfunction getOrCreateTComponentView(def) {\n    /** @type {?} */\n    const tView = def.tView;\n    // Create a TView if there isn't one, or recreate it if the first create pass didn't\n    // complete successfuly since we can't know for sure whether it's in a usable shape.\n    if (tView === null || tView.incompleteFirstPass) {\n        return def.tView = createTView(1 /* Component */, -1, def.template, def.decls, def.vars, def.directiveDefs, def.pipeDefs, def.viewQuery, def.schemas, def.consts);\n    }\n    return tView;\n}\n/**\n * Creates a TView instance\n *\n * @param {?} type\n * @param {?} viewIndex The viewBlockId for inline views, or -1 if it's a component/dynamic\n * @param {?} templateFn Template function\n * @param {?} decls The number of nodes, local refs, and pipes in this template\n * @param {?} vars\n * @param {?} directives Registry of directives for this view\n * @param {?} pipes Registry of pipes for this view\n * @param {?} viewQuery View queries for this view\n * @param {?} schemas Schemas for this view\n * @param {?} consts Constants for this view\n * @return {?}\n */\nfunction createTView(type, viewIndex, templateFn, decls, vars, directives, pipes, viewQuery, schemas, consts) {\n    ngDevMode && ngDevMode.tView++;\n    /** @type {?} */\n    const bindingStartIndex = HEADER_OFFSET + decls;\n    // This length does not yet contain host bindings from child directives because at this point,\n    // we don't know which directives are active on this template. As soon as a directive is matched\n    // that has a host binding, we will update the blueprint with that def's hostVars count.\n    /** @type {?} */\n    const initialViewLength = bindingStartIndex + vars;\n    /** @type {?} */\n    const blueprint = createViewBlueprint(bindingStartIndex, initialViewLength);\n    return blueprint[(/** @type {?} */ (TVIEW))] = ngDevMode ?\n        new TViewConstructor(type, viewIndex, // id: number,\n        blueprint, // blueprint: LView,\n        templateFn, // template: ComponentTemplate<{}>|null,\n        null, // queries: TQueries|null\n        viewQuery, (/** @type {?} */ (null)), // node: TViewNode|TElementNode|null,\n        cloneToTViewData(blueprint).fill(null, bindingStartIndex), // data: TData,\n        bindingStartIndex, // bindingStartIndex: number,\n        initialViewLength, // expandoStartIndex: number,\n        null, // expandoInstructions: ExpandoInstructions|null,\n        true, // firstCreatePass: boolean,\n        true, // firstUpdatePass: boolean,\n        false, // staticViewQueries: boolean,\n        false, // staticContentQueries: boolean,\n        null, // preOrderHooks: HookData|null,\n        null, // preOrderCheckHooks: HookData|null,\n        null, // contentHooks: HookData|null,\n        null, // contentCheckHooks: HookData|null,\n        null, // viewHooks: HookData|null,\n        null, // viewCheckHooks: HookData|null,\n        null, // destroyHooks: DestroyHookData|null,\n        null, // cleanup: any[]|null,\n        null, // contentQueries: number[]|null,\n        null, // components: number[]|null,\n        typeof directives === 'function' ?\n            directives() :\n            directives, // directiveRegistry: DirectiveDefList|null,\n        typeof pipes === 'function' ? pipes() : pipes, // pipeRegistry: PipeDefList|null,\n        null, // firstChild: TNode|null,\n        schemas, // schemas: SchemaMetadata[]|null,\n        consts, // consts: TConstants|null\n        false // incompleteFirstPass: boolean\n        ) :\n        {\n            type: type,\n            id: viewIndex,\n            blueprint: blueprint,\n            template: templateFn,\n            queries: null,\n            viewQuery: viewQuery,\n            node: (/** @type {?} */ (null)),\n            data: blueprint.slice().fill(null, bindingStartIndex),\n            bindingStartIndex: bindingStartIndex,\n            expandoStartIndex: initialViewLength,\n            expandoInstructions: null,\n            firstCreatePass: true,\n            firstUpdatePass: true,\n            staticViewQueries: false,\n            staticContentQueries: false,\n            preOrderHooks: null,\n            preOrderCheckHooks: null,\n            contentHooks: null,\n            contentCheckHooks: null,\n            viewHooks: null,\n            viewCheckHooks: null,\n            destroyHooks: null,\n            cleanup: null,\n            contentQueries: null,\n            components: null,\n            directiveRegistry: typeof directives === 'function' ? directives() : directives,\n            pipeRegistry: typeof pipes === 'function' ? pipes() : pipes,\n            firstChild: null,\n            schemas: schemas,\n            consts: consts,\n            incompleteFirstPass: false\n        };\n}\n/**\n * @param {?} bindingStartIndex\n * @param {?} initialViewLength\n * @return {?}\n */\nfunction createViewBlueprint(bindingStartIndex, initialViewLength) {\n    /** @type {?} */\n    const blueprint = ngDevMode ? new LViewBlueprint() : [];\n    for (let i = 0; i < initialViewLength; i++) {\n        blueprint.push(i < bindingStartIndex ? null : NO_CHANGE);\n    }\n    return (/** @type {?} */ (blueprint));\n}\n/**\n * @param {?} text\n * @param {?} token\n * @return {?}\n */\nfunction createError(text, token) {\n    return new Error(`Renderer: ${text} [${stringifyForError(token)}]`);\n}\n/**\n * @param {?} rElement\n * @param {?} elementOrSelector\n * @return {?}\n */\nfunction assertHostNodeExists(rElement, elementOrSelector) {\n    if (!rElement) {\n        if (typeof elementOrSelector === 'string') {\n            throw createError('Host node with selector not found:', elementOrSelector);\n        }\n        else {\n            throw createError('Host node is required:', elementOrSelector);\n        }\n    }\n}\n/**\n * Locates the host native element, used for bootstrapping existing nodes into rendering pipeline.\n *\n * @param {?} renderer\n * @param {?} elementOrSelector Render element or CSS selector to locate the element.\n * @param {?} encapsulation View Encapsulation defined for component that requests host element.\n * @return {?}\n */\nfunction locateHostElement(renderer, elementOrSelector, encapsulation) {\n    if (isProceduralRenderer(renderer)) {\n        // When using native Shadow DOM, do not clear host element to allow native slot projection\n        /** @type {?} */\n        const preserveContent = encapsulation === ViewEncapsulation$1.ShadowDom;\n        return renderer.selectRootElement(elementOrSelector, preserveContent);\n    }\n    /** @type {?} */\n    let rElement = typeof elementOrSelector === 'string' ?\n        (/** @type {?} */ (renderer.querySelector(elementOrSelector))) :\n        elementOrSelector;\n    ngDevMode && assertHostNodeExists(rElement, elementOrSelector);\n    // Always clear host element's content when Renderer3 is in use. For procedural renderer case we\n    // make it depend on whether ShadowDom encapsulation is used (in which case the content should be\n    // preserved to allow native slot projection). ShadowDom encapsulation requires procedural\n    // renderer, and procedural renderer case is handled above.\n    rElement.textContent = '';\n    return rElement;\n}\n/**\n * Saves context for this cleanup function in LView.cleanupInstances.\n *\n * On the first template pass, saves in TView:\n * - Cleanup function\n * - Index of context we just saved in LView.cleanupInstances\n * @param {?} tView\n * @param {?} lView\n * @param {?} context\n * @param {?} cleanupFn\n * @return {?}\n */\nfunction storeCleanupWithContext(tView, lView, context, cleanupFn) {\n    /** @type {?} */\n    const lCleanup = getLCleanup(lView);\n    lCleanup.push(context);\n    if (tView.firstCreatePass) {\n        getTViewCleanup(tView).push(cleanupFn, lCleanup.length - 1);\n    }\n}\n/**\n * Saves the cleanup function itself in LView.cleanupInstances.\n *\n * This is necessary for functions that are wrapped with their contexts, like in renderer2\n * listeners.\n *\n * On the first template pass, the index of the cleanup function is saved in TView.\n * @param {?} tView\n * @param {?} lView\n * @param {?} cleanupFn\n * @return {?}\n */\nfunction storeCleanupFn(tView, lView, cleanupFn) {\n    getLCleanup(lView).push(cleanupFn);\n    if (tView.firstCreatePass) {\n        getTViewCleanup(tView).push((/** @type {?} */ (lView[CLEANUP])).length - 1, null);\n    }\n}\n/**\n * Constructs a TNode object from the arguments.\n *\n * @param {?} tView `TView` to which this `TNode` belongs (used only in `ngDevMode`)\n * @param {?} tParent\n * @param {?} type The type of the node\n * @param {?} adjustedIndex The index of the TNode in TView.data, adjusted for HEADER_OFFSET\n * @param {?} tagName The tag name of the node\n * @param {?} attrs The attributes defined on this node\n * @return {?} the TNode object\n */\nfunction createTNode(tView, tParent, type, adjustedIndex, tagName, attrs) {\n    ngDevMode && ngDevMode.tNode++;\n    /** @type {?} */\n    let injectorIndex = tParent ? tParent.injectorIndex : -1;\n    return ngDevMode ? new TNodeDebug(tView, // tView_: TView\n    type, // type: TNodeType\n    adjustedIndex, // index: number\n    injectorIndex, // injectorIndex: number\n    -1, // directiveStart: number\n    -1, // directiveEnd: number\n    -1, // directiveStylingLast: number\n    null, // propertyBindings: number[]|null\n    0, // flags: TNodeFlags\n    0, // providerIndexes: TNodeProviderIndexes\n    tagName, // tagName: string|null\n    attrs, // attrs: (string|AttributeMarker|(string|SelectorFlags)[])[]|null\n    null, // mergedAttrs\n    null, // localNames: (string|number)[]|null\n    undefined, // initialInputs: (string[]|null)[]|null|undefined\n    null, // inputs: PropertyAliases|null\n    null, // outputs: PropertyAliases|null\n    null, // tViews: ITView|ITView[]|null\n    null, // next: ITNode|null\n    null, // projectionNext: ITNode|null\n    null, // child: ITNode|null\n    tParent, // parent: TElementNode|TContainerNode|null\n    null, // projection: number|(ITNode|RNode[])[]|null\n    null, // styles: string|null\n    null, // stylesWithoutHost: string|null\n    undefined, // residualStyles: string|null\n    null, // classes: string|null\n    null, // classesWithoutHost: string|null\n    undefined, (/** @type {?} */ (0)), (/** @type {?} */ (0))) :\n        {\n            type: type,\n            index: adjustedIndex,\n            injectorIndex: injectorIndex,\n            directiveStart: -1,\n            directiveEnd: -1,\n            directiveStylingLast: -1,\n            propertyBindings: null,\n            flags: 0,\n            providerIndexes: 0,\n            tagName: tagName,\n            attrs: attrs,\n            mergedAttrs: null,\n            localNames: null,\n            initialInputs: undefined,\n            inputs: null,\n            outputs: null,\n            tViews: null,\n            next: null,\n            projectionNext: null,\n            child: null,\n            parent: tParent,\n            projection: null,\n            styles: null,\n            stylesWithoutHost: null,\n            residualStyles: undefined,\n            classes: null,\n            classesWithoutHost: null,\n            residualClasses: undefined,\n            classBindings: (/** @type {?} */ (0)),\n            styleBindings: (/** @type {?} */ (0)),\n        };\n}\n/**\n * @param {?} inputAliasMap\n * @param {?} directiveDefIdx\n * @param {?} propStore\n * @return {?}\n */\nfunction generatePropertyAliases(inputAliasMap, directiveDefIdx, propStore) {\n    for (let publicName in inputAliasMap) {\n        if (inputAliasMap.hasOwnProperty(publicName)) {\n            propStore = propStore === null ? {} : propStore;\n            /** @type {?} */\n            const internalName = inputAliasMap[publicName];\n            if (propStore.hasOwnProperty(publicName)) {\n                propStore[publicName].push(directiveDefIdx, internalName);\n            }\n            else {\n                (propStore[publicName] = [directiveDefIdx, internalName]);\n            }\n        }\n    }\n    return propStore;\n}\n/**\n * Initializes data structures required to work with directive outputs and outputs.\n * Initialization is done for all directives matched on a given TNode.\n * @param {?} tView\n * @param {?} tNode\n * @return {?}\n */\nfunction initializeInputAndOutputAliases(tView, tNode) {\n    ngDevMode && assertFirstCreatePass(tView);\n    /** @type {?} */\n    const start = tNode.directiveStart;\n    /** @type {?} */\n    const end = tNode.directiveEnd;\n    /** @type {?} */\n    const defs = tView.data;\n    /** @type {?} */\n    const tNodeAttrs = tNode.attrs;\n    /** @type {?} */\n    const inputsFromAttrs = ngDevMode ? new TNodeInitialInputs() : [];\n    /** @type {?} */\n    let inputsStore = null;\n    /** @type {?} */\n    let outputsStore = null;\n    for (let i = start; i < end; i++) {\n        /** @type {?} */\n        const directiveDef = (/** @type {?} */ (defs[i]));\n        /** @type {?} */\n        const directiveInputs = directiveDef.inputs;\n        // Do not use unbound attributes as inputs to structural directives, since structural\n        // directive inputs can only be set using microsyntax (e.g. `<div *dir=\"exp\">`).\n        // TODO(FW-1930): microsyntax expressions may also contain unbound/static attributes, which\n        // should be set for inline templates.\n        /** @type {?} */\n        const initialInputs = (tNodeAttrs !== null && !isInlineTemplate(tNode)) ?\n            generateInitialInputs(directiveInputs, tNodeAttrs) :\n            null;\n        inputsFromAttrs.push(initialInputs);\n        inputsStore = generatePropertyAliases(directiveInputs, i, inputsStore);\n        outputsStore = generatePropertyAliases(directiveDef.outputs, i, outputsStore);\n    }\n    if (inputsStore !== null) {\n        if (inputsStore.hasOwnProperty('class')) {\n            tNode.flags |= 16 /* hasClassInput */;\n        }\n        if (inputsStore.hasOwnProperty('style')) {\n            tNode.flags |= 32 /* hasStyleInput */;\n        }\n    }\n    tNode.initialInputs = inputsFromAttrs;\n    tNode.inputs = inputsStore;\n    tNode.outputs = outputsStore;\n}\n/**\n * Mapping between attributes names that don't correspond to their element property names.\n *\n * Performance note: this function is written as a series of if checks (instead of, say, a property\n * object lookup) for performance reasons - the series of `if` checks seems to be the fastest way of\n * mapping property names. Do NOT change without benchmarking.\n *\n * Note: this mapping has to be kept in sync with the equally named mapping in the template\n * type-checking machinery of ngtsc.\n * @param {?} name\n * @return {?}\n */\nfunction mapPropName(name) {\n    if (name === 'class')\n        return 'className';\n    if (name === 'for')\n        return 'htmlFor';\n    if (name === 'formaction')\n        return 'formAction';\n    if (name === 'innerHtml')\n        return 'innerHTML';\n    if (name === 'readonly')\n        return 'readOnly';\n    if (name === 'tabindex')\n        return 'tabIndex';\n    return name;\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} tNode\n * @param {?} lView\n * @param {?} propName\n * @param {?} value\n * @param {?} renderer\n * @param {?} sanitizer\n * @param {?} nativeOnly\n * @return {?}\n */\nfunction elementPropertyInternal(tView, tNode, lView, propName, value, renderer, sanitizer, nativeOnly) {\n    ngDevMode && assertNotSame(value, (/** @type {?} */ (NO_CHANGE)), 'Incoming value should never be NO_CHANGE.');\n    /** @type {?} */\n    const element = (/** @type {?} */ (getNativeByTNode(tNode, lView)));\n    /** @type {?} */\n    let inputData = tNode.inputs;\n    /** @type {?} */\n    let dataValue;\n    if (!nativeOnly && inputData != null && (dataValue = inputData[propName])) {\n        setInputsForProperty(tView, lView, dataValue, propName, value);\n        if (isComponentHost(tNode))\n            markDirtyIfOnPush(lView, tNode.index);\n        if (ngDevMode) {\n            setNgReflectProperties(lView, element, tNode.type, dataValue, value);\n        }\n    }\n    else if (tNode.type === 3 /* Element */) {\n        propName = mapPropName(propName);\n        if (ngDevMode) {\n            validateAgainstEventProperties(propName);\n            if (!validateProperty(tView, lView, element, propName, tNode)) {\n                // Return here since we only log warnings for unknown properties.\n                warnAboutUnknownProperty(propName, tNode);\n                return;\n            }\n            ngDevMode.rendererSetProperty++;\n        }\n        // It is assumed that the sanitizer is only added when the compiler determines that the\n        // property is risky, so sanitization can be done without further checks.\n        value = sanitizer != null ? ((/** @type {?} */ (sanitizer(value, tNode.tagName || '', propName)))) : value;\n        if (isProceduralRenderer(renderer)) {\n            renderer.setProperty((/** @type {?} */ (element)), propName, value);\n        }\n        else if (!isAnimationProp(propName)) {\n            ((/** @type {?} */ (element))).setProperty ? ((/** @type {?} */ (element))).setProperty(propName, value) :\n                ((/** @type {?} */ (element)))[propName] = value;\n        }\n    }\n    else if (tNode.type === 0 /* Container */) {\n        // If the node is a container and the property didn't\n        // match any of the inputs or schemas we should throw.\n        if (ngDevMode && !matchingSchemas(tView, lView, tNode.tagName)) {\n            warnAboutUnknownProperty(propName, tNode);\n        }\n    }\n}\n/**\n * If node is an OnPush component, marks its LView dirty.\n * @param {?} lView\n * @param {?} viewIndex\n * @return {?}\n */\nfunction markDirtyIfOnPush(lView, viewIndex) {\n    ngDevMode && assertLView(lView);\n    /** @type {?} */\n    const childComponentLView = getComponentLViewByIndex(viewIndex, lView);\n    if (!(childComponentLView[FLAGS] & 16 /* CheckAlways */)) {\n        childComponentLView[FLAGS] |= 64 /* Dirty */;\n    }\n}\n/**\n * @param {?} lView\n * @param {?} element\n * @param {?} type\n * @param {?} attrName\n * @param {?} value\n * @return {?}\n */\nfunction setNgReflectProperty(lView, element, type, attrName, value) {\n    /** @type {?} */\n    const renderer = lView[RENDERER];\n    attrName = normalizeDebugBindingName(attrName);\n    /** @type {?} */\n    const debugValue = normalizeDebugBindingValue(value);\n    if (type === 3 /* Element */) {\n        if (value == null) {\n            isProceduralRenderer(renderer) ? renderer.removeAttribute(((/** @type {?} */ (element))), attrName) :\n                ((/** @type {?} */ (element))).removeAttribute(attrName);\n        }\n        else {\n            isProceduralRenderer(renderer) ?\n                renderer.setAttribute(((/** @type {?} */ (element))), attrName, debugValue) :\n                ((/** @type {?} */ (element))).setAttribute(attrName, debugValue);\n        }\n    }\n    else {\n        /** @type {?} */\n        const textContent = `bindings=${JSON.stringify({ [attrName]: debugValue }, null, 2)}`;\n        if (isProceduralRenderer(renderer)) {\n            renderer.setValue(((/** @type {?} */ (element))), textContent);\n        }\n        else {\n            ((/** @type {?} */ (element))).textContent = textContent;\n        }\n    }\n}\n/**\n * @param {?} lView\n * @param {?} element\n * @param {?} type\n * @param {?} dataValue\n * @param {?} value\n * @return {?}\n */\nfunction setNgReflectProperties(lView, element, type, dataValue, value) {\n    if (type === 3 /* Element */ || type === 0 /* Container */) {\n        /**\n         * dataValue is an array containing runtime input or output names for the directives:\n         * i+0: directive instance index\n         * i+1: privateName\n         *\n         * e.g. [0, 'change', 'change-minified']\n         * we want to set the reflected property with the privateName: dataValue[i+1]\n         */\n        for (let i = 0; i < dataValue.length; i += 2) {\n            setNgReflectProperty(lView, element, type, (/** @type {?} */ (dataValue[i + 1])), value);\n        }\n    }\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} element\n * @param {?} propName\n * @param {?} tNode\n * @return {?}\n */\nfunction validateProperty(tView, lView, element, propName, tNode) {\n    // If `schemas` is set to `null`, that's an indication that this Component was compiled in AOT\n    // mode where this check happens at compile time. In JIT mode, `schemas` is always present and\n    // defined as an array (as an empty array in case `schemas` field is not defined) and we should\n    // execute the check below.\n    if (tView.schemas === null)\n        return true;\n    // The property is considered valid if the element matches the schema, it exists on the element\n    // or it is synthetic, and we are in a browser context (web worker nodes should be skipped).\n    if (matchingSchemas(tView, lView, tNode.tagName) || propName in element ||\n        isAnimationProp(propName)) {\n        return true;\n    }\n    // Note: `typeof Node` returns 'function' in most browsers, but on IE it is 'object' so we\n    // need to account for both here, while being careful for `typeof null` also returning 'object'.\n    return typeof Node === 'undefined' || Node === null || !(element instanceof Node);\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} tagName\n * @return {?}\n */\nfunction matchingSchemas(tView, lView, tagName) {\n    /** @type {?} */\n    const schemas = tView.schemas;\n    if (schemas !== null) {\n        for (let i = 0; i < schemas.length; i++) {\n            /** @type {?} */\n            const schema = schemas[i];\n            if (schema === NO_ERRORS_SCHEMA ||\n                schema === CUSTOM_ELEMENTS_SCHEMA && tagName && tagName.indexOf('-') > -1) {\n                return true;\n            }\n        }\n    }\n    return false;\n}\n/**\n * Logs a warning that a property is not supported on an element.\n * @param {?} propName Name of the invalid property.\n * @param {?} tNode Node on which we encountered the property.\n * @return {?}\n */\nfunction warnAboutUnknownProperty(propName, tNode) {\n    console.warn(`Can't bind to '${propName}' since it isn't a known property of '${tNode.tagName}'.`);\n}\n/**\n * Instantiate a root component.\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} def\n * @return {?}\n */\nfunction instantiateRootComponent(tView, lView, def) {\n    /** @type {?} */\n    const rootTNode = getPreviousOrParentTNode();\n    if (tView.firstCreatePass) {\n        if (def.providersResolver)\n            def.providersResolver(def);\n        generateExpandoInstructionBlock(tView, rootTNode, 1);\n        baseResolveDirective(tView, lView, def);\n    }\n    /** @type {?} */\n    const directive = getNodeInjectable(lView, tView, lView.length - 1, (/** @type {?} */ (rootTNode)));\n    attachPatchData(directive, lView);\n    /** @type {?} */\n    const native = getNativeByTNode(rootTNode, lView);\n    if (native) {\n        attachPatchData(native, lView);\n    }\n    return directive;\n}\n/**\n * Resolve the matched directives on a node.\n * @param {?} tView\n * @param {?} lView\n * @param {?} tNode\n * @param {?} localRefs\n * @return {?}\n */\nfunction resolveDirectives(tView, lView, tNode, localRefs) {\n    // Please make sure to have explicit type for `exportsMap`. Inferred type triggers bug in\n    // tsickle.\n    ngDevMode && assertFirstCreatePass(tView);\n    /** @type {?} */\n    let hasDirectives = false;\n    if (getBindingsEnabled()) {\n        /** @type {?} */\n        const directiveDefs = findDirectiveDefMatches(tView, lView, tNode);\n        /** @type {?} */\n        const exportsMap = localRefs === null ? null : { '': -1 };\n        if (directiveDefs !== null) {\n            /** @type {?} */\n            let totalDirectiveHostVars = 0;\n            hasDirectives = true;\n            initTNodeFlags(tNode, tView.data.length, directiveDefs.length);\n            // When the same token is provided by several directives on the same node, some rules apply in\n            // the viewEngine:\n            // - viewProviders have priority over providers\n            // - the last directive in NgModule.declarations has priority over the previous one\n            // So to match these rules, the order in which providers are added in the arrays is very\n            // important.\n            for (let i = 0; i < directiveDefs.length; i++) {\n                /** @type {?} */\n                const def = directiveDefs[i];\n                if (def.providersResolver)\n                    def.providersResolver(def);\n            }\n            generateExpandoInstructionBlock(tView, tNode, directiveDefs.length);\n            /** @type {?} */\n            let preOrderHooksFound = false;\n            /** @type {?} */\n            let preOrderCheckHooksFound = false;\n            for (let i = 0; i < directiveDefs.length; i++) {\n                /** @type {?} */\n                const def = directiveDefs[i];\n                // Merge the attrs in the order of matches. This assumes that the first directive is the\n                // component itself, so that the component has the least priority.\n                tNode.mergedAttrs = mergeHostAttrs(tNode.mergedAttrs, def.hostAttrs);\n                baseResolveDirective(tView, lView, def);\n                saveNameToExportMap((/** @type {?} */ (tView.data)).length - 1, def, exportsMap);\n                if (def.contentQueries !== null)\n                    tNode.flags |= 8 /* hasContentQuery */;\n                if (def.hostBindings !== null || def.hostAttrs !== null || def.hostVars !== 0)\n                    tNode.flags |= 128 /* hasHostBindings */;\n                // Only push a node index into the preOrderHooks array if this is the first\n                // pre-order hook found on this node.\n                if (!preOrderHooksFound && (def.onChanges || def.onInit || def.doCheck)) {\n                    // We will push the actual hook function into this array later during dir instantiation.\n                    // We cannot do it now because we must ensure hooks are registered in the same\n                    // order that directives are created (i.e. injection order).\n                    (tView.preOrderHooks || (tView.preOrderHooks = [])).push(tNode.index - HEADER_OFFSET);\n                    preOrderHooksFound = true;\n                }\n                if (!preOrderCheckHooksFound && (def.onChanges || def.doCheck)) {\n                    (tView.preOrderCheckHooks || (tView.preOrderCheckHooks = []))\n                        .push(tNode.index - HEADER_OFFSET);\n                    preOrderCheckHooksFound = true;\n                }\n                addHostBindingsToExpandoInstructions(tView, def);\n                totalDirectiveHostVars += def.hostVars;\n            }\n            initializeInputAndOutputAliases(tView, tNode);\n            growHostVarsSpace(tView, lView, totalDirectiveHostVars);\n        }\n        if (exportsMap)\n            cacheMatchingLocalNames(tNode, localRefs, exportsMap);\n    }\n    // Merge the template attrs last so that they have the highest priority.\n    tNode.mergedAttrs = mergeHostAttrs(tNode.mergedAttrs, tNode.attrs);\n    return hasDirectives;\n}\n/**\n * Add `hostBindings` to the `TView.expandoInstructions`.\n *\n * @param {?} tView `TView` to which the `hostBindings` should be added.\n * @param {?} def `ComponentDef`/`DirectiveDef`, which contains the `hostVars`/`hostBindings` to add.\n * @return {?}\n */\nfunction addHostBindingsToExpandoInstructions(tView, def) {\n    ngDevMode && assertFirstCreatePass(tView);\n    /** @type {?} */\n    const expando = (/** @type {?} */ (tView.expandoInstructions));\n    // TODO(misko): PERF we are adding `hostBindings` even if there is nothing to add! This is\n    // suboptimal for performance. `def.hostBindings` may be null,\n    // but we still need to push null to the array as a placeholder\n    // to ensure the directive counter is incremented (so host\n    // binding functions always line up with the corrective directive).\n    // This is suboptimal for performance. See `currentDirectiveIndex`\n    //  comment in `setHostBindingsByExecutingExpandoInstructions` for more\n    // details.  expando.push(def.hostBindings);\n    expando.push(def.hostBindings);\n    /** @type {?} */\n    const hostVars = def.hostVars;\n    if (hostVars !== 0) {\n        expando.push(def.hostVars);\n    }\n}\n/**\n * Grow the `LView`, blueprint and `TView.data` to accommodate the `hostBindings`.\n *\n * To support locality we don't know ahead of time how many `hostVars` of the containing directives\n * we need to allocate. For this reason we allow growing these data structures as we discover more\n * directives to accommodate them.\n *\n * @param {?} tView `TView` which needs to be grown.\n * @param {?} lView `LView` which needs to be grown.\n * @param {?} count Size by which we need to grow the data structures.\n * @return {?}\n */\nfunction growHostVarsSpace(tView, lView, count) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode && assertSame(tView, lView[TVIEW], '`LView` must be associated with `TView`!');\n    for (let i = 0; i < count; i++) {\n        lView.push(NO_CHANGE);\n        tView.blueprint.push(NO_CHANGE);\n        tView.data.push(null);\n    }\n}\n/**\n * Instantiate all the directives that were previously resolved on the current node.\n * @param {?} tView\n * @param {?} lView\n * @param {?} tNode\n * @param {?} native\n * @return {?}\n */\nfunction instantiateAllDirectives(tView, lView, tNode, native) {\n    /** @type {?} */\n    const start = tNode.directiveStart;\n    /** @type {?} */\n    const end = tNode.directiveEnd;\n    if (!tView.firstCreatePass) {\n        getOrCreateNodeInjectorForNode(tNode, lView);\n    }\n    attachPatchData(native, lView);\n    /** @type {?} */\n    const initialInputs = tNode.initialInputs;\n    for (let i = start; i < end; i++) {\n        /** @type {?} */\n        const def = (/** @type {?} */ (tView.data[i]));\n        /** @type {?} */\n        const isComponent = isComponentDef(def);\n        if (isComponent) {\n            ngDevMode && assertNodeOfPossibleTypes(tNode, 3 /* Element */);\n            addComponentLogic(lView, (/** @type {?} */ (tNode)), (/** @type {?} */ (def)));\n        }\n        /** @type {?} */\n        const directive = getNodeInjectable(lView, tView, i, tNode);\n        attachPatchData(directive, lView);\n        if (initialInputs !== null) {\n            setInputsFromAttrs(lView, i - start, directive, def, tNode, (/** @type {?} */ (initialInputs)));\n        }\n        if (isComponent) {\n            /** @type {?} */\n            const componentView = getComponentLViewByIndex(tNode.index, lView);\n            componentView[CONTEXT] = directive;\n        }\n    }\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} tNode\n * @return {?}\n */\nfunction invokeDirectivesHostBindings(tView, lView, tNode) {\n    /** @type {?} */\n    const start = tNode.directiveStart;\n    /** @type {?} */\n    const end = tNode.directiveEnd;\n    /** @type {?} */\n    const expando = (/** @type {?} */ (tView.expandoInstructions));\n    /** @type {?} */\n    const firstCreatePass = tView.firstCreatePass;\n    /** @type {?} */\n    const elementIndex = tNode.index - HEADER_OFFSET;\n    /** @type {?} */\n    const currentDirectiveIndex = getCurrentDirectiveIndex();\n    try {\n        setSelectedIndex(elementIndex);\n        for (let dirIndex = start; dirIndex < end; dirIndex++) {\n            /** @type {?} */\n            const def = (/** @type {?} */ (tView.data[dirIndex]));\n            /** @type {?} */\n            const directive = lView[dirIndex];\n            setCurrentDirectiveIndex(dirIndex);\n            if (def.hostBindings !== null || def.hostVars !== 0 || def.hostAttrs !== null) {\n                invokeHostBindingsInCreationMode(def, directive);\n            }\n            else if (firstCreatePass) {\n                expando.push(null);\n            }\n        }\n    }\n    finally {\n        setSelectedIndex(-1);\n        setCurrentDirectiveIndex(currentDirectiveIndex);\n    }\n}\n/**\n * Invoke the host bindings in creation mode.\n *\n * @param {?} def `DirectiveDef` which may contain the `hostBindings` function.\n * @param {?} directive Instance of directive.\n * @return {?}\n */\nfunction invokeHostBindingsInCreationMode(def, directive) {\n    if (def.hostBindings !== null) {\n        (/** @type {?} */ (def.hostBindings))(1 /* Create */, directive);\n    }\n}\n/**\n * Generates a new block in TView.expandoInstructions for this node.\n *\n * Each expando block starts with the element index (turned negative so we can distinguish\n * it from the hostVar count) and the directive count. See more in VIEW_DATA.md.\n * @param {?} tView\n * @param {?} tNode\n * @param {?} directiveCount\n * @return {?}\n */\nfunction generateExpandoInstructionBlock(tView, tNode, directiveCount) {\n    ngDevMode &&\n        assertEqual(tView.firstCreatePass, true, 'Expando block should only be generated on first create pass.');\n    // Important: In JS `-x` and `0-x` is not the same! If `x===0` then `-x` will produce `-0` which\n    // requires non standard math arithmetic and it can prevent VM optimizations.\n    // `0-0` will always produce `0` and will not cause a potential deoptimization in VM.\n    /** @type {?} */\n    const elementIndex = HEADER_OFFSET - tNode.index;\n    /** @type {?} */\n    const providerStartIndex = tNode.providerIndexes & 65535 /* ProvidersStartIndexMask */;\n    /** @type {?} */\n    const providerCount = tView.data.length - providerStartIndex;\n    (tView.expandoInstructions || (tView.expandoInstructions = []))\n        .push(elementIndex, providerCount, directiveCount);\n}\n/**\n * Matches the current node against all available selectors.\n * If a component is matched (at most one), it is returned in first position in the array.\n * @param {?} tView\n * @param {?} viewData\n * @param {?} tNode\n * @return {?}\n */\nfunction findDirectiveDefMatches(tView, viewData, tNode) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode &&\n        assertNodeOfPossibleTypes(tNode, 3 /* Element */, 4 /* ElementContainer */, 0 /* Container */);\n    /** @type {?} */\n    const registry = tView.directiveRegistry;\n    /** @type {?} */\n    let matches = null;\n    if (registry) {\n        for (let i = 0; i < registry.length; i++) {\n            /** @type {?} */\n            const def = (/** @type {?} */ (registry[i]));\n            if (isNodeMatchingSelectorList(tNode, (/** @type {?} */ (def.selectors)), /* isProjectionMode */ false)) {\n                matches || (matches = ngDevMode ? new MatchesArray() : []);\n                diPublicInInjector(getOrCreateNodeInjectorForNode(tNode, viewData), tView, def.type);\n                if (isComponentDef(def)) {\n                    if (tNode.flags & 2 /* isComponentHost */)\n                        throwMultipleComponentError(tNode);\n                    markAsComponentHost(tView, tNode);\n                    // The component is always stored first with directives after.\n                    matches.unshift(def);\n                }\n                else {\n                    matches.push(def);\n                }\n            }\n        }\n    }\n    return matches;\n}\n/**\n * Marks a given TNode as a component's host. This consists of:\n * - setting appropriate TNode flags;\n * - storing index of component's host element so it will be queued for view refresh during CD.\n * @param {?} tView\n * @param {?} hostTNode\n * @return {?}\n */\nfunction markAsComponentHost(tView, hostTNode) {\n    ngDevMode && assertFirstCreatePass(tView);\n    hostTNode.flags |= 2 /* isComponentHost */;\n    (tView.components || (tView.components = ngDevMode ? new TViewComponents() : []))\n        .push(hostTNode.index);\n}\n/**\n * Caches local names and their matching directive indices for query and template lookups.\n * @param {?} tNode\n * @param {?} localRefs\n * @param {?} exportsMap\n * @return {?}\n */\nfunction cacheMatchingLocalNames(tNode, localRefs, exportsMap) {\n    if (localRefs) {\n        /** @type {?} */\n        const localNames = tNode.localNames = ngDevMode ? new TNodeLocalNames() : [];\n        // Local names must be stored in tNode in the same order that localRefs are defined\n        // in the template to ensure the data is loaded in the same slots as their refs\n        // in the template (for template queries).\n        for (let i = 0; i < localRefs.length; i += 2) {\n            /** @type {?} */\n            const index = exportsMap[localRefs[i + 1]];\n            if (index == null)\n                throw new Error(`Export of name '${localRefs[i + 1]}' not found!`);\n            localNames.push(localRefs[i], index);\n        }\n    }\n}\n/**\n * Builds up an export map as directives are created, so local refs can be quickly mapped\n * to their directive instances.\n * @param {?} index\n * @param {?} def\n * @param {?} exportsMap\n * @return {?}\n */\nfunction saveNameToExportMap(index, def, exportsMap) {\n    if (exportsMap) {\n        if (def.exportAs) {\n            for (let i = 0; i < def.exportAs.length; i++) {\n                exportsMap[def.exportAs[i]] = index;\n            }\n        }\n        if (isComponentDef(def))\n            exportsMap[''] = index;\n    }\n}\n/**\n * Initializes the flags on the current node, setting all indices to the initial index,\n * the directive count to 0, and adding the isComponent flag.\n * @param {?} tNode\n * @param {?} index the initial index\n * @param {?} numberOfDirectives\n * @return {?}\n */\nfunction initTNodeFlags(tNode, index, numberOfDirectives) {\n    ngDevMode &&\n        assertNotEqual(numberOfDirectives, tNode.directiveEnd - tNode.directiveStart, 'Reached the max number of directives');\n    tNode.flags |= 1 /* isDirectiveHost */;\n    // When the first directive is created on a node, save the index\n    tNode.directiveStart = index;\n    tNode.directiveEnd = index + numberOfDirectives;\n    tNode.providerIndexes = index;\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} viewData\n * @param {?} def\n * @return {?}\n */\nfunction baseResolveDirective(tView, viewData, def) {\n    tView.data.push(def);\n    /** @type {?} */\n    const directiveFactory = def.factory || (((/** @type {?} */ (def))).factory = getFactoryDef(def.type, true));\n    /** @type {?} */\n    const nodeInjectorFactory = new NodeInjectorFactory(directiveFactory, isComponentDef(def), null);\n    tView.blueprint.push(nodeInjectorFactory);\n    viewData.push(nodeInjectorFactory);\n}\n/**\n * @template T\n * @param {?} lView\n * @param {?} hostTNode\n * @param {?} def\n * @return {?}\n */\nfunction addComponentLogic(lView, hostTNode, def) {\n    /** @type {?} */\n    const native = (/** @type {?} */ (getNativeByTNode(hostTNode, lView)));\n    /** @type {?} */\n    const tView = getOrCreateTComponentView(def);\n    // Only component views should be added to the view tree directly. Embedded views are\n    // accessed through their containers because they may be removed / re-added later.\n    /** @type {?} */\n    const rendererFactory = lView[RENDERER_FACTORY];\n    /** @type {?} */\n    const componentView = addToViewTree(lView, createLView(lView, tView, null, def.onPush ? 64 /* Dirty */ : 16 /* CheckAlways */, native, (/** @type {?} */ (hostTNode)), rendererFactory, rendererFactory.createRenderer(native, def)));\n    // Component view will always be created before any injected LContainers,\n    // so this is a regular element, wrap it with the component view\n    lView[hostTNode.index] = componentView;\n}\n/**\n * @param {?} tNode\n * @param {?} lView\n * @param {?} name\n * @param {?} value\n * @param {?} sanitizer\n * @param {?} namespace\n * @return {?}\n */\nfunction elementAttributeInternal(tNode, lView, name, value, sanitizer, namespace) {\n    ngDevMode && assertNotSame(value, (/** @type {?} */ (NO_CHANGE)), 'Incoming value should never be NO_CHANGE.');\n    ngDevMode && validateAgainstEventAttributes(name);\n    /** @type {?} */\n    const element = (/** @type {?} */ (getNativeByTNode(tNode, lView)));\n    /** @type {?} */\n    const renderer = lView[RENDERER];\n    if (value == null) {\n        ngDevMode && ngDevMode.rendererRemoveAttribute++;\n        isProceduralRenderer(renderer) ? renderer.removeAttribute(element, name, namespace) :\n            element.removeAttribute(name);\n    }\n    else {\n        ngDevMode && ngDevMode.rendererSetAttribute++;\n        /** @type {?} */\n        const strValue = sanitizer == null ? renderStringify(value) : sanitizer(value, tNode.tagName || '', name);\n        if (isProceduralRenderer(renderer)) {\n            renderer.setAttribute(element, name, strValue, namespace);\n        }\n        else {\n            namespace ? element.setAttributeNS(namespace, name, strValue) :\n                element.setAttribute(name, strValue);\n        }\n    }\n}\n/**\n * Sets initial input properties on directive instances from attribute data\n *\n * @template T\n * @param {?} lView Current LView that is being processed.\n * @param {?} directiveIndex Index of the directive in directives array\n * @param {?} instance Instance of the directive on which to set the initial inputs\n * @param {?} def The directive def that contains the list of inputs\n * @param {?} tNode The static data for this node\n * @param {?} initialInputData\n * @return {?}\n */\nfunction setInputsFromAttrs(lView, directiveIndex, instance, def, tNode, initialInputData) {\n    /** @type {?} */\n    const initialInputs = (/** @type {?} */ (initialInputData))[directiveIndex];\n    if (initialInputs !== null) {\n        /** @type {?} */\n        const setInput = def.setInput;\n        for (let i = 0; i < initialInputs.length;) {\n            /** @type {?} */\n            const publicName = initialInputs[i++];\n            /** @type {?} */\n            const privateName = initialInputs[i++];\n            /** @type {?} */\n            const value = initialInputs[i++];\n            if (setInput !== null) {\n                (/** @type {?} */ (def.setInput))(instance, value, publicName, privateName);\n            }\n            else {\n                ((/** @type {?} */ (instance)))[privateName] = value;\n            }\n            if (ngDevMode) {\n                /** @type {?} */\n                const nativeElement = (/** @type {?} */ (getNativeByTNode(tNode, lView)));\n                setNgReflectProperty(lView, nativeElement, tNode.type, privateName, value);\n            }\n        }\n    }\n}\n/**\n * Generates initialInputData for a node and stores it in the template's static storage\n * so subsequent template invocations don't have to recalculate it.\n *\n * initialInputData is an array containing values that need to be set as input properties\n * for directives on this node, but only once on creation. We need this array to support\n * the case where you set an \\@Input property of a directive using attribute-like syntax.\n * e.g. if you have a `name` \\@Input, you can set it once like this:\n *\n * <my-component name=\"Bess\"></my-component>\n *\n * @param {?} inputs The list of inputs from the directive def\n * @param {?} attrs The static attrs on this node\n * @return {?}\n */\nfunction generateInitialInputs(inputs, attrs) {\n    /** @type {?} */\n    let inputsToStore = null;\n    /** @type {?} */\n    let i = 0;\n    while (i < attrs.length) {\n        /** @type {?} */\n        const attrName = attrs[i];\n        if (attrName === 0 /* NamespaceURI */) {\n            // We do not allow inputs on namespaced attributes.\n            i += 4;\n            continue;\n        }\n        else if (attrName === 5 /* ProjectAs */) {\n            // Skip over the `ngProjectAs` value.\n            i += 2;\n            continue;\n        }\n        // If we hit any other attribute markers, we're done anyway. None of those are valid inputs.\n        if (typeof attrName === 'number')\n            break;\n        if (inputs.hasOwnProperty((/** @type {?} */ (attrName)))) {\n            if (inputsToStore === null)\n                inputsToStore = [];\n            inputsToStore.push((/** @type {?} */ (attrName)), inputs[(/** @type {?} */ (attrName))], (/** @type {?} */ (attrs[i + 1])));\n        }\n        i += 2;\n    }\n    return inputsToStore;\n}\n//////////////////////////\n//// ViewContainer & View\n//////////////////////////\n// Not sure why I need to do `any` here but TS complains later.\n/** @type {?} */\nconst LContainerArray = ((typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode()) &&\n    createNamedArrayType('LContainer');\n/**\n * Creates a LContainer, either from a container instruction, or for a ViewContainerRef.\n *\n * @param {?} hostNative The host element for the LContainer\n * @param {?} currentView The parent view of the LContainer\n * @param {?} native The native comment element\n * @param {?} tNode\n * @return {?} LContainer\n */\nfunction createLContainer(hostNative, currentView, native, tNode) {\n    ngDevMode && assertLView(currentView);\n    ngDevMode && !isProceduralRenderer(currentView[RENDERER]) && assertDomNode(native);\n    // https://jsperf.com/array-literal-vs-new-array-really\n    /** @type {?} */\n    const lContainer = new (ngDevMode ? LContainerArray : Array)(hostNative, // host native\n    true, // Boolean `true` in this position signifies that this is an `LContainer`\n    false, // has transplanted views\n    currentView, // parent\n    null, // next\n    0, // transplanted views to refresh count\n    tNode, // t_host\n    native, // native,\n    null, // view refs\n    null);\n    ngDevMode &&\n        assertEqual(lContainer.length, CONTAINER_HEADER_OFFSET, 'Should allocate correct number of slots for LContainer header.');\n    ngDevMode && attachLContainerDebug(lContainer);\n    return lContainer;\n}\n/**\n * Goes over embedded views (ones created through ViewContainerRef APIs) and refreshes\n * them by executing an associated template function.\n * @param {?} lView\n * @return {?}\n */\nfunction refreshEmbeddedViews(lView) {\n    for (let lContainer = getFirstLContainer(lView); lContainer !== null; lContainer = getNextLContainer(lContainer)) {\n        for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n            /** @type {?} */\n            const embeddedLView = lContainer[i];\n            /** @type {?} */\n            const embeddedTView = embeddedLView[TVIEW];\n            ngDevMode && assertDefined(embeddedTView, 'TView must be allocated');\n            if (viewAttachedToChangeDetector(embeddedLView)) {\n                refreshView(embeddedTView, embeddedLView, embeddedTView.template, (/** @type {?} */ (embeddedLView[CONTEXT])));\n            }\n        }\n    }\n}\n/**\n * Mark transplanted views as needing to be refreshed at their insertion points.\n *\n * @param {?} lView The `LView` that may have transplanted views.\n * @return {?}\n */\nfunction markTransplantedViewsForRefresh(lView) {\n    for (let lContainer = getFirstLContainer(lView); lContainer !== null; lContainer = getNextLContainer(lContainer)) {\n        if (!lContainer[HAS_TRANSPLANTED_VIEWS])\n            continue;\n        /** @type {?} */\n        const movedViews = (/** @type {?} */ (lContainer[MOVED_VIEWS]));\n        ngDevMode && assertDefined(movedViews, 'Transplanted View flags set but missing MOVED_VIEWS');\n        for (let i = 0; i < movedViews.length; i++) {\n            /** @type {?} */\n            const movedLView = (/** @type {?} */ (movedViews[i]));\n            /** @type {?} */\n            const insertionLContainer = (/** @type {?} */ (movedLView[PARENT]));\n            ngDevMode && assertLContainer(insertionLContainer);\n            // We don't want to increment the counter if the moved LView was already marked for\n            // refresh.\n            if ((movedLView[FLAGS] & 1024 /* RefreshTransplantedView */) === 0) {\n                updateTransplantedViewCount(insertionLContainer, 1);\n            }\n            // Note, it is possible that the `movedViews` is tracking views that are transplanted *and*\n            // those that aren't (declaration component === insertion component). In the latter case,\n            // it's fine to add the flag, as we will clear it immediately in\n            // `refreshEmbeddedViews` for the view currently being refreshed.\n            movedLView[FLAGS] |= 1024 /* RefreshTransplantedView */;\n        }\n    }\n}\n/////////////\n/**\n * Refreshes components by entering the component view and processing its bindings, queries, etc.\n *\n * @param {?} hostLView\n * @param {?} componentHostIdx  Element index in LView[] (adjusted for HEADER_OFFSET)\n * @return {?}\n */\nfunction refreshComponent(hostLView, componentHostIdx) {\n    ngDevMode && assertEqual(isCreationMode(hostLView), false, 'Should be run in update mode');\n    /** @type {?} */\n    const componentView = getComponentLViewByIndex(componentHostIdx, hostLView);\n    // Only attached components that are CheckAlways or OnPush and dirty should be refreshed\n    if (viewAttachedToChangeDetector(componentView)) {\n        /** @type {?} */\n        const tView = componentView[TVIEW];\n        if (componentView[FLAGS] & (16 /* CheckAlways */ | 64 /* Dirty */)) {\n            refreshView(tView, componentView, tView.template, componentView[CONTEXT]);\n        }\n        else if (componentView[TRANSPLANTED_VIEWS_TO_REFRESH] > 0) {\n            // Only attached components that are CheckAlways or OnPush and dirty should be refreshed\n            refreshContainsDirtyView(componentView);\n        }\n    }\n}\n/**\n * Refreshes all transplanted views marked with `LViewFlags.RefreshTransplantedView` that are\n * children or descendants of the given lView.\n *\n * @param {?} lView The lView which contains descendant transplanted views that need to be refreshed.\n * @return {?}\n */\nfunction refreshContainsDirtyView(lView) {\n    for (let lContainer = getFirstLContainer(lView); lContainer !== null; lContainer = getNextLContainer(lContainer)) {\n        for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n            /** @type {?} */\n            const embeddedLView = lContainer[i];\n            if (embeddedLView[FLAGS] & 1024 /* RefreshTransplantedView */) {\n                /** @type {?} */\n                const embeddedTView = embeddedLView[TVIEW];\n                ngDevMode && assertDefined(embeddedTView, 'TView must be allocated');\n                refreshView(embeddedTView, embeddedLView, embeddedTView.template, (/** @type {?} */ (embeddedLView[CONTEXT])));\n            }\n            else if (embeddedLView[TRANSPLANTED_VIEWS_TO_REFRESH] > 0) {\n                refreshContainsDirtyView(embeddedLView);\n            }\n        }\n    }\n    /** @type {?} */\n    const tView = lView[TVIEW];\n    // Refresh child component views.\n    /** @type {?} */\n    const components = tView.components;\n    if (components !== null) {\n        for (let i = 0; i < components.length; i++) {\n            /** @type {?} */\n            const componentView = getComponentLViewByIndex(components[i], lView);\n            // Only attached components that are CheckAlways or OnPush and dirty should be refreshed\n            if (viewAttachedToChangeDetector(componentView) &&\n                componentView[TRANSPLANTED_VIEWS_TO_REFRESH] > 0) {\n                refreshContainsDirtyView(componentView);\n            }\n        }\n    }\n}\n/**\n * @param {?} hostLView\n * @param {?} componentHostIdx\n * @return {?}\n */\nfunction renderComponent(hostLView, componentHostIdx) {\n    ngDevMode && assertEqual(isCreationMode(hostLView), true, 'Should be run in creation mode');\n    /** @type {?} */\n    const componentView = getComponentLViewByIndex(componentHostIdx, hostLView);\n    /** @type {?} */\n    const componentTView = componentView[TVIEW];\n    syncViewWithBlueprint(componentTView, componentView);\n    renderView(componentTView, componentView, componentView[CONTEXT]);\n}\n/**\n * Syncs an LView instance with its blueprint if they have gotten out of sync.\n *\n * Typically, blueprints and their view instances should always be in sync, so the loop here\n * will be skipped. However, consider this case of two components side-by-side:\n *\n * App template:\n * ```\n * <comp></comp>\n * <comp></comp>\n * ```\n *\n * The following will happen:\n * 1. App template begins processing.\n * 2. First <comp> is matched as a component and its LView is created.\n * 3. Second <comp> is matched as a component and its LView is created.\n * 4. App template completes processing, so it's time to check child templates.\n * 5. First <comp> template is checked. It has a directive, so its def is pushed to blueprint.\n * 6. Second <comp> template is checked. Its blueprint has been updated by the first\n * <comp> template, but its LView was created before this update, so it is out of sync.\n *\n * Note that embedded views inside ngFor loops will never be out of sync because these views\n * are processed as soon as they are created.\n *\n * @param {?} tView The `TView` that contains the blueprint for syncing\n * @param {?} lView The view to sync\n * @return {?}\n */\nfunction syncViewWithBlueprint(tView, lView) {\n    for (let i = lView.length; i < tView.blueprint.length; i++) {\n        lView.push(tView.blueprint[i]);\n    }\n}\n/**\n * Adds LView or LContainer to the end of the current view tree.\n *\n * This structure will be used to traverse through nested views to remove listeners\n * and call onDestroy callbacks.\n *\n * @template T\n * @param {?} lView The view where LView or LContainer should be added\n * @param {?} lViewOrLContainer The LView or LContainer to add to the view tree\n * @return {?} The state passed in\n */\nfunction addToViewTree(lView, lViewOrLContainer) {\n    // TODO(benlesh/misko): This implementation is incorrect, because it always adds the LContainer\n    // to the end of the queue, which means if the developer retrieves the LContainers from RNodes out\n    // of order, the change detection will run out of order, as the act of retrieving the the\n    // LContainer from the RNode is what adds it to the queue.\n    if (lView[CHILD_HEAD]) {\n        (/** @type {?} */ (lView[CHILD_TAIL]))[NEXT] = lViewOrLContainer;\n    }\n    else {\n        lView[CHILD_HEAD] = lViewOrLContainer;\n    }\n    lView[CHILD_TAIL] = lViewOrLContainer;\n    return lViewOrLContainer;\n}\n///////////////////////////////\n//// Change detection\n///////////////////////////////\n/**\n * Marks current view and all ancestors dirty.\n *\n * Returns the root view because it is found as a byproduct of marking the view tree\n * dirty, and can be used by methods that consume markViewDirty() to easily schedule\n * change detection. Otherwise, such methods would need to traverse up the view tree\n * an additional time to get the root view and schedule a tick on it.\n *\n * @param {?} lView The starting LView to mark dirty\n * @return {?} the root LView\n */\nfunction markViewDirty(lView) {\n    while (lView) {\n        lView[FLAGS] |= 64 /* Dirty */;\n        /** @type {?} */\n        const parent = getLViewParent(lView);\n        // Stop traversing up as soon as you find a root view that wasn't attached to any container\n        if (isRootView(lView) && !parent) {\n            return lView;\n        }\n        // continue otherwise\n        lView = (/** @type {?} */ (parent));\n    }\n    return null;\n}\n/**\n * Used to schedule change detection on the whole application.\n *\n * Unlike `tick`, `scheduleTick` coalesces multiple calls into one change detection run.\n * It is usually called indirectly by calling `markDirty` when the view needs to be\n * re-rendered.\n *\n * Typically `scheduleTick` uses `requestAnimationFrame` to coalesce multiple\n * `scheduleTick` requests. The scheduling function can be overridden in\n * `renderComponent`'s `scheduler` option.\n * @param {?} rootContext\n * @param {?} flags\n * @return {?}\n */\nfunction scheduleTick(rootContext, flags) {\n    /** @type {?} */\n    const nothingScheduled = rootContext.flags === 0 /* Empty */;\n    rootContext.flags |= flags;\n    if (nothingScheduled && rootContext.clean == _CLEAN_PROMISE) {\n        /** @type {?} */\n        let res;\n        rootContext.clean = new Promise((/**\n         * @param {?} r\n         * @return {?}\n         */\n        (r) => res = r));\n        rootContext.scheduler((/**\n         * @return {?}\n         */\n        () => {\n            if (rootContext.flags & 1 /* DetectChanges */) {\n                rootContext.flags &= ~1 /* DetectChanges */;\n                tickRootContext(rootContext);\n            }\n            if (rootContext.flags & 2 /* FlushPlayers */) {\n                rootContext.flags &= ~2 /* FlushPlayers */;\n                /** @type {?} */\n                const playerHandler = rootContext.playerHandler;\n                if (playerHandler) {\n                    playerHandler.flushPlayers();\n                }\n            }\n            rootContext.clean = _CLEAN_PROMISE;\n            (/** @type {?} */ (res))(null);\n        }));\n    }\n}\n/**\n * @param {?} rootContext\n * @return {?}\n */\nfunction tickRootContext(rootContext) {\n    for (let i = 0; i < rootContext.components.length; i++) {\n        /** @type {?} */\n        const rootComponent = rootContext.components[i];\n        /** @type {?} */\n        const lView = (/** @type {?} */ (readPatchedLView(rootComponent)));\n        /** @type {?} */\n        const tView = lView[TVIEW];\n        renderComponentOrTemplate(tView, lView, tView.template, rootComponent);\n    }\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} context\n * @return {?}\n */\nfunction detectChangesInternal(tView, lView, context) {\n    /** @type {?} */\n    const rendererFactory = lView[RENDERER_FACTORY];\n    if (rendererFactory.begin)\n        rendererFactory.begin();\n    try {\n        refreshView(tView, lView, tView.template, context);\n    }\n    catch (error) {\n        handleError(lView, error);\n        throw error;\n    }\n    finally {\n        if (rendererFactory.end)\n            rendererFactory.end();\n    }\n}\n/**\n * Synchronously perform change detection on a root view and its components.\n *\n * @param {?} lView The view which the change detection should be performed on.\n * @return {?}\n */\nfunction detectChangesInRootView(lView) {\n    tickRootContext((/** @type {?} */ (lView[CONTEXT])));\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} view\n * @param {?} context\n * @return {?}\n */\nfunction checkNoChangesInternal(tView, view, context) {\n    setCheckNoChangesMode(true);\n    try {\n        detectChangesInternal(tView, view, context);\n    }\n    finally {\n        setCheckNoChangesMode(false);\n    }\n}\n/**\n * Checks the change detector on a root view and its components, and throws if any changes are\n * detected.\n *\n * This is used in development mode to verify that running change detection doesn't\n * introduce other changes.\n *\n * @param {?} lView The view which the change detection should be checked on.\n * @return {?}\n */\nfunction checkNoChangesInRootView(lView) {\n    setCheckNoChangesMode(true);\n    try {\n        detectChangesInRootView(lView);\n    }\n    finally {\n        setCheckNoChangesMode(false);\n    }\n}\n/**\n * @template T\n * @param {?} flags\n * @param {?} viewQueryFn\n * @param {?} component\n * @return {?}\n */\nfunction executeViewQueryFn(flags, viewQueryFn, component) {\n    ngDevMode && assertDefined(viewQueryFn, 'View queries function to execute must be defined.');\n    setCurrentQueryIndex(0);\n    viewQueryFn(flags, component);\n}\n///////////////////////////////\n//// Bindings & interpolations\n///////////////////////////////\n/**\n * Stores meta-data for a property binding to be used by TestBed's `DebugElement.properties`.\n *\n * In order to support TestBed's `DebugElement.properties` we need to save, for each binding:\n * - a bound property name;\n * - a static parts of interpolated strings;\n *\n * A given property metadata is saved at the binding's index in the `TView.data` (in other words, a\n * property binding metadata will be stored in `TView.data` at the same index as a bound value in\n * `LView`). Metadata are represented as `INTERPOLATION_DELIMITER`-delimited string with the\n * following format:\n * - `propertyName` for bound properties;\n * - `propertyName�prefix�interpolation_static_part1�..interpolation_static_partN�suffix` for\n * interpolated properties.\n *\n * @param {?} tData `TData` where meta-data will be saved;\n * @param {?} tNode `TNode` that is a target of the binding;\n * @param {?} propertyName bound property name;\n * @param {?} bindingIndex binding index in `LView`\n * @param {...?} interpolationParts static interpolation parts (for property interpolations)\n * @return {?}\n */\nfunction storePropertyBindingMetadata(tData, tNode, propertyName, bindingIndex, ...interpolationParts) {\n    // Binding meta-data are stored only the first time a given property instruction is processed.\n    // Since we don't have a concept of the \"first update pass\" we need to check for presence of the\n    // binding meta-data to decide if one should be stored (or if was stored already).\n    if (tData[bindingIndex] === null) {\n        if (tNode.inputs == null || !tNode.inputs[propertyName]) {\n            /** @type {?} */\n            const propBindingIdxs = tNode.propertyBindings || (tNode.propertyBindings = []);\n            propBindingIdxs.push(bindingIndex);\n            /** @type {?} */\n            let bindingMetadata = propertyName;\n            if (interpolationParts.length > 0) {\n                bindingMetadata +=\n                    INTERPOLATION_DELIMITER + interpolationParts.join(INTERPOLATION_DELIMITER);\n            }\n            tData[bindingIndex] = bindingMetadata;\n        }\n    }\n}\n/** @type {?} */\nconst CLEAN_PROMISE = _CLEAN_PROMISE;\n/**\n * @param {?} view\n * @return {?}\n */\nfunction getLCleanup(view) {\n    // top level variables should not be exported for performance reasons (PERF_NOTES.md)\n    return view[CLEANUP] || (view[CLEANUP] = ngDevMode ? new LCleanup() : []);\n}\n/**\n * @param {?} tView\n * @return {?}\n */\nfunction getTViewCleanup(tView) {\n    return tView.cleanup || (tView.cleanup = ngDevMode ? new TCleanup() : []);\n}\n/**\n * There are cases where the sub component's renderer needs to be included\n * instead of the current renderer (see the componentSyntheticHost* instructions).\n * @param {?} currentDef\n * @param {?} tNode\n * @param {?} lView\n * @return {?}\n */\nfunction loadComponentRenderer(currentDef, tNode, lView) {\n    // TODO(FW-2043): the `currentDef` is null when host bindings are invoked while creating root\n    // component (see packages/core/src/render3/component.ts). This is not consistent with the process\n    // of creating inner components, when current directive index is available in the state. In order\n    // to avoid relying on current def being `null` (thus special-casing root component creation), the\n    // process of creating root component should be unified with the process of creating inner\n    // components.\n    if (currentDef === null || isComponentDef(currentDef)) {\n        lView = (/** @type {?} */ (unwrapLView(lView[tNode.index])));\n    }\n    return lView[RENDERER];\n}\n/**\n * Handles an error thrown in an LView.\n * @param {?} lView\n * @param {?} error\n * @return {?}\n */\nfunction handleError(lView, error) {\n    /** @type {?} */\n    const injector = lView[INJECTOR$1];\n    /** @type {?} */\n    const errorHandler = injector ? injector.get(ErrorHandler, null) : null;\n    errorHandler && errorHandler.handleError(error);\n}\n/**\n * Set the inputs of directives at the current node to corresponding value.\n *\n * @param {?} tView The current TView\n * @param {?} lView the `LView` which contains the directives.\n * @param {?} inputs mapping between the public \"input\" name and privately-known,\n *        possibly minified, property names to write to.\n * @param {?} publicName\n * @param {?} value Value to set.\n * @return {?}\n */\nfunction setInputsForProperty(tView, lView, inputs, publicName, value) {\n    for (let i = 0; i < inputs.length;) {\n        /** @type {?} */\n        const index = (/** @type {?} */ (inputs[i++]));\n        /** @type {?} */\n        const privateName = (/** @type {?} */ (inputs[i++]));\n        /** @type {?} */\n        const instance = lView[index];\n        ngDevMode && assertDataInRange(lView, index);\n        /** @type {?} */\n        const def = (/** @type {?} */ (tView.data[index]));\n        if (def.setInput !== null) {\n            (/** @type {?} */ (def.setInput))(instance, value, publicName, privateName);\n        }\n        else {\n            instance[privateName] = value;\n        }\n    }\n}\n/**\n * Updates a text binding at a given index in a given LView.\n * @param {?} lView\n * @param {?} index\n * @param {?} value\n * @return {?}\n */\nfunction textBindingInternal(lView, index, value) {\n    ngDevMode && assertNotSame(value, (/** @type {?} */ (NO_CHANGE)), 'value should not be NO_CHANGE');\n    ngDevMode && assertDataInRange(lView, index + HEADER_OFFSET);\n    /** @type {?} */\n    const element = (/** @type {?} */ ((/** @type {?} */ (getNativeByIndex(index, lView)))));\n    ngDevMode && assertDefined(element, 'native element should exist');\n    ngDevMode && ngDevMode.rendererSetText++;\n    /** @type {?} */\n    const renderer = lView[RENDERER];\n    isProceduralRenderer(renderer) ? renderer.setValue(element, value) : element.textContent = value;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/node_manipulation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst unusedValueToPlacateAjd$1 = unusedValueExportToPlacateAjd$1 + unusedValueExportToPlacateAjd$4 + unusedValueExportToPlacateAjd$5 + unusedValueExportToPlacateAjd$2 + unusedValueExportToPlacateAjd;\n/**\n * @param {?} tNode\n * @param {?} embeddedView\n * @return {?}\n */\nfunction getLContainer(tNode, embeddedView) {\n    ngDevMode && assertLView(embeddedView);\n    /** @type {?} */\n    const container = (/** @type {?} */ (embeddedView[PARENT]));\n    if (tNode.index === -1) {\n        // This is a dynamically created view inside a dynamic container.\n        // The parent isn't an LContainer if the embedded view hasn't been attached yet.\n        return isLContainer(container) ? container : null;\n    }\n    else {\n        ngDevMode && assertLContainer(container);\n        // This is a inline view node (e.g. embeddedViewStart)\n        return container;\n    }\n}\n/**\n * Retrieves render parent for a given view.\n * Might be null if a view is not yet attached to any container.\n * @param {?} tViewNode\n * @param {?} view\n * @return {?}\n */\nfunction getContainerRenderParent(tViewNode, view) {\n    /** @type {?} */\n    const container = getLContainer(tViewNode, view);\n    return container ? nativeParentNode(view[RENDERER], container[NATIVE]) : null;\n}\n/** @enum {number} */\nconst WalkTNodeTreeAction = {\n    /** node create in the native environment. Run on initial creation. */\n    Create: 0,\n    /**\n     * node insert in the native environment.\n     * Run when existing node has been detached and needs to be re-attached.\n     */\n    Insert: 1,\n    /** node detach from the native environment */\n    Detach: 2,\n    /** node destruction using the renderer's API */\n    Destroy: 3,\n};\n/**\n * NOTE: for performance reasons, the possible actions are inlined within the function instead of\n * being passed as an argument.\n * @param {?} action\n * @param {?} renderer\n * @param {?} parent\n * @param {?} lNodeToHandle\n * @param {?=} beforeNode\n * @return {?}\n */\nfunction applyToElementOrContainer(action, renderer, parent, lNodeToHandle, beforeNode) {\n    // If this slot was allocated for a text node dynamically created by i18n, the text node itself\n    // won't be created until i18nApply() in the update block, so this node should be skipped.\n    // For more info, see \"ICU expressions should work inside an ngTemplateOutlet inside an ngFor\"\n    // in `i18n_spec.ts`.\n    if (lNodeToHandle != null) {\n        /** @type {?} */\n        let lContainer;\n        /** @type {?} */\n        let isComponent = false;\n        // We are expecting an RNode, but in the case of a component or LContainer the `RNode` is\n        // wrapped in an array which needs to be unwrapped. We need to know if it is a component and if\n        // it has LContainer so that we can process all of those cases appropriately.\n        if (isLContainer(lNodeToHandle)) {\n            lContainer = lNodeToHandle;\n        }\n        else if (isLView(lNodeToHandle)) {\n            isComponent = true;\n            ngDevMode && assertDefined(lNodeToHandle[HOST], 'HOST must be defined for a component LView');\n            lNodeToHandle = (/** @type {?} */ (lNodeToHandle[HOST]));\n        }\n        /** @type {?} */\n        const rNode = unwrapRNode(lNodeToHandle);\n        ngDevMode && !isProceduralRenderer(renderer) && assertDomNode(rNode);\n        if (action === 0 /* Create */ && parent !== null) {\n            if (beforeNode == null) {\n                nativeAppendChild(renderer, parent, rNode);\n            }\n            else {\n                nativeInsertBefore(renderer, parent, rNode, beforeNode || null);\n            }\n        }\n        else if (action === 1 /* Insert */ && parent !== null) {\n            nativeInsertBefore(renderer, parent, rNode, beforeNode || null);\n        }\n        else if (action === 2 /* Detach */) {\n            nativeRemoveNode(renderer, rNode, isComponent);\n        }\n        else if (action === 3 /* Destroy */) {\n            ngDevMode && ngDevMode.rendererDestroyNode++;\n            (/** @type {?} */ (((/** @type {?} */ (renderer))).destroyNode))(rNode);\n        }\n        if (lContainer != null) {\n            applyContainer(renderer, action, lContainer, parent, beforeNode);\n        }\n    }\n}\n/**\n * @param {?} value\n * @param {?} renderer\n * @return {?}\n */\nfunction createTextNode(value, renderer) {\n    ngDevMode && ngDevMode.rendererCreateTextNode++;\n    ngDevMode && ngDevMode.rendererSetText++;\n    return isProceduralRenderer(renderer) ? renderer.createText(value) :\n        renderer.createTextNode(value);\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} insertMode\n * @param {?} beforeNode\n * @return {?}\n */\nfunction addRemoveViewFromContainer(tView, lView, insertMode, beforeNode) {\n    /** @type {?} */\n    const renderParent = getContainerRenderParent((/** @type {?} */ (tView.node)), lView);\n    ngDevMode && assertNodeType((/** @type {?} */ (tView.node)), 2 /* View */);\n    if (renderParent) {\n        /** @type {?} */\n        const renderer = lView[RENDERER];\n        /** @type {?} */\n        const action = insertMode ? 1 /* Insert */ : 2 /* Detach */;\n        applyView(tView, lView, renderer, action, renderParent, beforeNode);\n    }\n}\n/**\n * Detach a `LView` from the DOM by detaching its nodes.\n *\n * @param {?} tView The `TView' of the `LView` to be detached\n * @param {?} lView the `LView` to be detached.\n * @return {?}\n */\nfunction renderDetachView(tView, lView) {\n    applyView(tView, lView, lView[RENDERER], 2 /* Detach */, null, null);\n}\n/**\n * Traverses down and up the tree of views and containers to remove listeners and\n * call onDestroy callbacks.\n *\n * Notes:\n *  - Because it's used for onDestroy calls, it needs to be bottom-up.\n *  - Must process containers instead of their views to avoid splicing\n *  when views are destroyed and re-added.\n *  - Using a while loop because it's faster than recursion\n *  - Destroy only called on movement to sibling or movement to parent (laterally or up)\n *\n * @param {?} rootView The view to destroy\n * @return {?}\n */\nfunction destroyViewTree(rootView) {\n    // If the view has no children, we can clean it up and return early.\n    /** @type {?} */\n    let lViewOrLContainer = rootView[CHILD_HEAD];\n    if (!lViewOrLContainer) {\n        return cleanUpView(rootView[TVIEW], rootView);\n    }\n    while (lViewOrLContainer) {\n        /** @type {?} */\n        let next = null;\n        if (isLView(lViewOrLContainer)) {\n            // If LView, traverse down to child.\n            next = lViewOrLContainer[CHILD_HEAD];\n        }\n        else {\n            ngDevMode && assertLContainer(lViewOrLContainer);\n            // If container, traverse down to its first LView.\n            /** @type {?} */\n            const firstView = lViewOrLContainer[CONTAINER_HEADER_OFFSET];\n            if (firstView)\n                next = firstView;\n        }\n        if (!next) {\n            // Only clean up view when moving to the side or up, as destroy hooks\n            // should be called in order from the bottom up.\n            while (lViewOrLContainer && !(/** @type {?} */ (lViewOrLContainer))[NEXT] && lViewOrLContainer !== rootView) {\n                isLView(lViewOrLContainer) && cleanUpView(lViewOrLContainer[TVIEW], lViewOrLContainer);\n                lViewOrLContainer = getParentState(lViewOrLContainer, rootView);\n            }\n            if (lViewOrLContainer === null)\n                lViewOrLContainer = rootView;\n            isLView(lViewOrLContainer) && cleanUpView(lViewOrLContainer[TVIEW], lViewOrLContainer);\n            next = lViewOrLContainer && (/** @type {?} */ (lViewOrLContainer))[NEXT];\n        }\n        lViewOrLContainer = next;\n    }\n}\n/**\n * Inserts a view into a container.\n *\n * This adds the view to the container's array of active views in the correct\n * position. It also adds the view's elements to the DOM if the container isn't a\n * root node of another view (in that case, the view's elements will be added when\n * the container's parent view is added later).\n *\n * @param {?} tView The `TView' of the `LView` to insert\n * @param {?} lView The view to insert\n * @param {?} lContainer The container into which the view should be inserted\n * @param {?} index Which index in the container to insert the child view into\n * @return {?}\n */\nfunction insertView(tView, lView, lContainer, index) {\n    ngDevMode && assertLView(lView);\n    ngDevMode && assertLContainer(lContainer);\n    /** @type {?} */\n    const indexInContainer = CONTAINER_HEADER_OFFSET + index;\n    /** @type {?} */\n    const containerLength = lContainer.length;\n    if (index > 0) {\n        // This is a new view, we need to add it to the children.\n        lContainer[indexInContainer - 1][NEXT] = lView;\n    }\n    if (index < containerLength - CONTAINER_HEADER_OFFSET) {\n        lView[NEXT] = lContainer[indexInContainer];\n        addToArray(lContainer, CONTAINER_HEADER_OFFSET + index, lView);\n    }\n    else {\n        lContainer.push(lView);\n        lView[NEXT] = null;\n    }\n    lView[PARENT] = lContainer;\n    // track views where declaration and insertion points are different\n    /** @type {?} */\n    const declarationLContainer = lView[DECLARATION_LCONTAINER];\n    if (declarationLContainer !== null && lContainer !== declarationLContainer) {\n        trackMovedView(declarationLContainer, lView);\n    }\n    // notify query that a new view has been added\n    /** @type {?} */\n    const lQueries = lView[QUERIES];\n    if (lQueries !== null) {\n        lQueries.insertView(tView);\n    }\n    // Sets the attached flag\n    lView[FLAGS] |= 128 /* Attached */;\n}\n/**\n * Track views created from the declaration container (TemplateRef) and inserted into a\n * different LContainer.\n * @param {?} declarationContainer\n * @param {?} lView\n * @return {?}\n */\nfunction trackMovedView(declarationContainer, lView) {\n    ngDevMode && assertDefined(lView, 'LView required');\n    ngDevMode && assertLContainer(declarationContainer);\n    /** @type {?} */\n    const movedViews = declarationContainer[MOVED_VIEWS];\n    /** @type {?} */\n    const insertedLContainer = (/** @type {?} */ (lView[PARENT]));\n    ngDevMode && assertLContainer(insertedLContainer);\n    /** @type {?} */\n    const insertedComponentLView = (/** @type {?} */ (insertedLContainer[PARENT]))[DECLARATION_COMPONENT_VIEW];\n    ngDevMode && assertDefined(insertedComponentLView, 'Missing insertedComponentLView');\n    /** @type {?} */\n    const declaredComponentLView = lView[DECLARATION_COMPONENT_VIEW];\n    ngDevMode && assertDefined(declaredComponentLView, 'Missing declaredComponentLView');\n    if (declaredComponentLView !== insertedComponentLView) {\n        // At this point the declaration-component is not same as insertion-component; this means that\n        // this is a transplanted view. Mark the declared lView as having transplanted views so that\n        // those views can participate in CD.\n        declarationContainer[HAS_TRANSPLANTED_VIEWS] = true;\n    }\n    if (movedViews === null) {\n        declarationContainer[MOVED_VIEWS] = [lView];\n    }\n    else {\n        movedViews.push(lView);\n    }\n}\n/**\n * @param {?} declarationContainer\n * @param {?} lView\n * @return {?}\n */\nfunction detachMovedView(declarationContainer, lView) {\n    ngDevMode && assertLContainer(declarationContainer);\n    ngDevMode &&\n        assertDefined(declarationContainer[MOVED_VIEWS], 'A projected view should belong to a non-empty projected views collection');\n    /** @type {?} */\n    const movedViews = (/** @type {?} */ (declarationContainer[MOVED_VIEWS]));\n    /** @type {?} */\n    const declarationViewIndex = movedViews.indexOf(lView);\n    /** @type {?} */\n    const insertionLContainer = (/** @type {?} */ (lView[PARENT]));\n    ngDevMode && assertLContainer(insertionLContainer);\n    // If the view was marked for refresh but then detached before it was checked (where the flag\n    // would be cleared and the counter decremented), we need to decrement the view counter here\n    // instead.\n    if (lView[FLAGS] & 1024 /* RefreshTransplantedView */) {\n        updateTransplantedViewCount(insertionLContainer, -1);\n    }\n    movedViews.splice(declarationViewIndex, 1);\n}\n/**\n * Detaches a view from a container.\n *\n * This method removes the view from the container's array of active views. It also\n * removes the view's elements from the DOM.\n *\n * @param {?} lContainer The container from which to detach a view\n * @param {?} removeIndex The index of the view to detach\n * @return {?} Detached LView instance.\n */\nfunction detachView(lContainer, removeIndex) {\n    if (lContainer.length <= CONTAINER_HEADER_OFFSET)\n        return;\n    /** @type {?} */\n    const indexInContainer = CONTAINER_HEADER_OFFSET + removeIndex;\n    /** @type {?} */\n    const viewToDetach = lContainer[indexInContainer];\n    if (viewToDetach) {\n        /** @type {?} */\n        const declarationLContainer = viewToDetach[DECLARATION_LCONTAINER];\n        if (declarationLContainer !== null && declarationLContainer !== lContainer) {\n            detachMovedView(declarationLContainer, viewToDetach);\n        }\n        if (removeIndex > 0) {\n            lContainer[indexInContainer - 1][NEXT] = (/** @type {?} */ (viewToDetach[NEXT]));\n        }\n        /** @type {?} */\n        const removedLView = removeFromArray(lContainer, CONTAINER_HEADER_OFFSET + removeIndex);\n        addRemoveViewFromContainer(viewToDetach[TVIEW], viewToDetach, false, null);\n        // notify query that a view has been removed\n        /** @type {?} */\n        const lQueries = removedLView[QUERIES];\n        if (lQueries !== null) {\n            lQueries.detachView(removedLView[TVIEW]);\n        }\n        viewToDetach[PARENT] = null;\n        viewToDetach[NEXT] = null;\n        // Unsets the attached flag\n        viewToDetach[FLAGS] &= ~128 /* Attached */;\n    }\n    return viewToDetach;\n}\n/**\n * Removes a view from a container, i.e. detaches it and then destroys the underlying LView.\n *\n * @param {?} lContainer The container from which to remove a view\n * @param {?} removeIndex The index of the view to remove\n * @return {?}\n */\nfunction removeView(lContainer, removeIndex) {\n    /** @type {?} */\n    const detachedView = detachView(lContainer, removeIndex);\n    detachedView && destroyLView(detachedView[TVIEW], detachedView);\n}\n/**\n * A standalone function which destroys an LView,\n * conducting clean up (e.g. removing listeners, calling onDestroys).\n *\n * @param {?} tView The `TView' of the `LView` to be destroyed\n * @param {?} lView The view to be destroyed.\n * @return {?}\n */\nfunction destroyLView(tView, lView) {\n    if (!(lView[FLAGS] & 256 /* Destroyed */)) {\n        /** @type {?} */\n        const renderer = lView[RENDERER];\n        if (isProceduralRenderer(renderer) && renderer.destroyNode) {\n            applyView(tView, lView, renderer, 3 /* Destroy */, null, null);\n        }\n        destroyViewTree(lView);\n    }\n}\n/**\n * Determines which LViewOrLContainer to jump to when traversing back up the\n * tree in destroyViewTree.\n *\n * Normally, the view's parent LView should be checked, but in the case of\n * embedded views, the container (which is the view node's parent, but not the\n * LView's parent) needs to be checked for a possible next property.\n *\n * @param {?} lViewOrLContainer The LViewOrLContainer for which we need a parent state\n * @param {?} rootView The rootView, so we don't propagate too far up the view tree\n * @return {?} The correct parent LViewOrLContainer\n */\nfunction getParentState(lViewOrLContainer, rootView) {\n    /** @type {?} */\n    let tNode;\n    if (isLView(lViewOrLContainer) && (tNode = lViewOrLContainer[T_HOST]) &&\n        tNode.type === 2 /* View */) {\n        // if it's an embedded view, the state needs to go up to the container, in case the\n        // container has a next\n        return getLContainer((/** @type {?} */ (tNode)), lViewOrLContainer);\n    }\n    else {\n        // otherwise, use parent view for containers or component views\n        return lViewOrLContainer[PARENT] === rootView ? null : lViewOrLContainer[PARENT];\n    }\n}\n/**\n * Calls onDestroys hooks for all directives and pipes in a given view and then removes all\n * listeners. Listeners are removed as the last step so events delivered in the onDestroys hooks\n * can be propagated to \\@Output listeners.\n *\n * @param {?} tView `TView` for the `LView` to clean up.\n * @param {?} lView The LView to clean up\n * @return {?}\n */\nfunction cleanUpView(tView, lView) {\n    if (!(lView[FLAGS] & 256 /* Destroyed */)) {\n        // Usually the Attached flag is removed when the view is detached from its parent, however\n        // if it's a root view, the flag won't be unset hence why we're also removing on destroy.\n        lView[FLAGS] &= ~128 /* Attached */;\n        // Mark the LView as destroyed *before* executing the onDestroy hooks. An onDestroy hook\n        // runs arbitrary user code, which could include its own `viewRef.destroy()` (or similar). If\n        // We don't flag the view as destroyed before the hooks, this could lead to an infinite loop.\n        // This also aligns with the ViewEngine behavior. It also means that the onDestroy hook is\n        // really more of an \"afterDestroy\" hook if you think about it.\n        lView[FLAGS] |= 256 /* Destroyed */;\n        executeOnDestroys(tView, lView);\n        removeListeners(tView, lView);\n        /** @type {?} */\n        const hostTNode = lView[T_HOST];\n        // For component views only, the local renderer is destroyed as clean up time.\n        if (hostTNode && hostTNode.type === 3 /* Element */ &&\n            isProceduralRenderer(lView[RENDERER])) {\n            ngDevMode && ngDevMode.rendererDestroy++;\n            ((/** @type {?} */ (lView[RENDERER]))).destroy();\n        }\n        /** @type {?} */\n        const declarationContainer = lView[DECLARATION_LCONTAINER];\n        // we are dealing with an embedded view that is still inserted into a container\n        if (declarationContainer !== null && isLContainer(lView[PARENT])) {\n            // and this is a projected view\n            if (declarationContainer !== lView[PARENT]) {\n                detachMovedView(declarationContainer, lView);\n            }\n            // For embedded views still attached to a container: remove query result from this view.\n            /** @type {?} */\n            const lQueries = lView[QUERIES];\n            if (lQueries !== null) {\n                lQueries.detachView(tView);\n            }\n        }\n    }\n}\n/**\n * Removes listeners and unsubscribes from output subscriptions\n * @param {?} tView\n * @param {?} lView\n * @return {?}\n */\nfunction removeListeners(tView, lView) {\n    /** @type {?} */\n    const tCleanup = tView.cleanup;\n    if (tCleanup !== null) {\n        /** @type {?} */\n        const lCleanup = (/** @type {?} */ (lView[CLEANUP]));\n        for (let i = 0; i < tCleanup.length - 1; i += 2) {\n            if (typeof tCleanup[i] === 'string') {\n                // This is a native DOM listener\n                /** @type {?} */\n                const idxOrTargetGetter = tCleanup[i + 1];\n                /** @type {?} */\n                const target = typeof idxOrTargetGetter === 'function' ?\n                    idxOrTargetGetter(lView) :\n                    unwrapRNode(lView[idxOrTargetGetter]);\n                /** @type {?} */\n                const listener = lCleanup[tCleanup[i + 2]];\n                /** @type {?} */\n                const useCaptureOrSubIdx = tCleanup[i + 3];\n                if (typeof useCaptureOrSubIdx === 'boolean') {\n                    // native DOM listener registered with Renderer3\n                    target.removeEventListener(tCleanup[i], listener, useCaptureOrSubIdx);\n                }\n                else {\n                    if (useCaptureOrSubIdx >= 0) {\n                        // unregister\n                        lCleanup[useCaptureOrSubIdx]();\n                    }\n                    else {\n                        // Subscription\n                        lCleanup[-useCaptureOrSubIdx].unsubscribe();\n                    }\n                }\n                i += 2;\n            }\n            else {\n                // This is a cleanup function that is grouped with the index of its context\n                /** @type {?} */\n                const context = lCleanup[tCleanup[i + 1]];\n                tCleanup[i].call(context);\n            }\n        }\n        lView[CLEANUP] = null;\n    }\n}\n/**\n * Calls onDestroy hooks for this view\n * @param {?} tView\n * @param {?} lView\n * @return {?}\n */\nfunction executeOnDestroys(tView, lView) {\n    /** @type {?} */\n    let destroyHooks;\n    if (tView != null && (destroyHooks = tView.destroyHooks) != null) {\n        for (let i = 0; i < destroyHooks.length; i += 2) {\n            /** @type {?} */\n            const context = lView[(/** @type {?} */ (destroyHooks[i]))];\n            // Only call the destroy hook if the context has been requested.\n            if (!(context instanceof NodeInjectorFactory)) {\n                /** @type {?} */\n                const toCall = (/** @type {?} */ (destroyHooks[i + 1]));\n                if (Array.isArray(toCall)) {\n                    for (let j = 0; j < toCall.length; j += 2) {\n                        ((/** @type {?} */ (toCall[j + 1]))).call(context[(/** @type {?} */ (toCall[j]))]);\n                    }\n                }\n                else {\n                    toCall.call(context);\n                }\n            }\n        }\n    }\n}\n/**\n * Returns a native element if a node can be inserted into the given parent.\n *\n * There are two reasons why we may not be able to insert a element immediately.\n * - Projection: When creating a child content element of a component, we have to skip the\n *   insertion because the content of a component will be projected.\n *   `<component><content>delayed due to projection</content></component>`\n * - Parent container is disconnected: This can happen when we are inserting a view into\n *   parent container, which itself is disconnected. For example the parent container is part\n *   of a View which has not be inserted or is made for projection but has not been inserted\n *   into destination.\n * @param {?} tView\n * @param {?} tNode\n * @param {?} currentView\n * @return {?}\n */\nfunction getRenderParent(tView, tNode, currentView) {\n    // Skip over element and ICU containers as those are represented by a comment node and\n    // can't be used as a render parent.\n    /** @type {?} */\n    let parentTNode = tNode.parent;\n    while (parentTNode != null &&\n        (parentTNode.type === 4 /* ElementContainer */ ||\n            parentTNode.type === 5 /* IcuContainer */)) {\n        tNode = parentTNode;\n        parentTNode = tNode.parent;\n    }\n    // If the parent tNode is null, then we are inserting across views: either into an embedded view\n    // or a component view.\n    if (parentTNode == null) {\n        /** @type {?} */\n        const hostTNode = (/** @type {?} */ (currentView[T_HOST]));\n        if (hostTNode.type === 2 /* View */) {\n            // We are inserting a root element of an embedded view We might delay insertion of children\n            // for a given view if it is disconnected. This might happen for 2 main reasons:\n            // - view is not inserted into any container(view was created but not inserted yet)\n            // - view is inserted into a container but the container itself is not inserted into the DOM\n            // (container might be part of projection or child of a view that is not inserted yet).\n            // In other words we can insert children of a given view if this view was inserted into a\n            // container and the container itself has its render parent determined.\n            return getContainerRenderParent((/** @type {?} */ (hostTNode)), currentView);\n        }\n        else {\n            // We are inserting a root element of the component view into the component host element and\n            // it should always be eager.\n            ngDevMode && assertNodeOfPossibleTypes(hostTNode, 3 /* Element */);\n            return currentView[HOST];\n        }\n    }\n    else {\n        /** @type {?} */\n        const isIcuCase = tNode && tNode.type === 5 /* IcuContainer */;\n        // If the parent of this node is an ICU container, then it is represented by comment node and we\n        // need to use it as an anchor. If it is projected then it's direct parent node is the renderer.\n        if (isIcuCase && tNode.flags & 4 /* isProjected */) {\n            return (/** @type {?} */ (getNativeByTNode(tNode, currentView).parentNode));\n        }\n        ngDevMode && assertNodeType(parentTNode, 3 /* Element */);\n        if (parentTNode.flags & 2 /* isComponentHost */) {\n            /** @type {?} */\n            const tData = tView.data;\n            /** @type {?} */\n            const tNode = (/** @type {?} */ (tData[parentTNode.index]));\n            /** @type {?} */\n            const encapsulation = ((/** @type {?} */ (tData[tNode.directiveStart]))).encapsulation;\n            // We've got a parent which is an element in the current view. We just need to verify if the\n            // parent element is not a component. Component's content nodes are not inserted immediately\n            // because they will be projected, and so doing insert at this point would be wasteful.\n            // Since the projection would then move it to its final destination. Note that we can't\n            // make this assumption when using the Shadow DOM, because the native projection placeholders\n            // (<content> or <slot>) have to be in place as elements are being inserted.\n            if (encapsulation !== ViewEncapsulation$1.ShadowDom &&\n                encapsulation !== ViewEncapsulation$1.Native) {\n                return null;\n            }\n        }\n        return (/** @type {?} */ (getNativeByTNode(parentTNode, currentView)));\n    }\n}\n/**\n * Inserts a native node before another native node for a given parent using {\\@link Renderer3}.\n * This is a utility function that can be used when native nodes were determined - it abstracts an\n * actual renderer being used.\n * @param {?} renderer\n * @param {?} parent\n * @param {?} child\n * @param {?} beforeNode\n * @return {?}\n */\nfunction nativeInsertBefore(renderer, parent, child, beforeNode) {\n    ngDevMode && ngDevMode.rendererInsertBefore++;\n    if (isProceduralRenderer(renderer)) {\n        renderer.insertBefore(parent, child, beforeNode);\n    }\n    else {\n        parent.insertBefore(child, beforeNode, true);\n    }\n}\n/**\n * @param {?} renderer\n * @param {?} parent\n * @param {?} child\n * @return {?}\n */\nfunction nativeAppendChild(renderer, parent, child) {\n    ngDevMode && ngDevMode.rendererAppendChild++;\n    ngDevMode && assertDefined(parent, 'parent node must be defined');\n    if (isProceduralRenderer(renderer)) {\n        renderer.appendChild(parent, child);\n    }\n    else {\n        parent.appendChild(child);\n    }\n}\n/**\n * @param {?} renderer\n * @param {?} parent\n * @param {?} child\n * @param {?} beforeNode\n * @return {?}\n */\nfunction nativeAppendOrInsertBefore(renderer, parent, child, beforeNode) {\n    if (beforeNode !== null) {\n        nativeInsertBefore(renderer, parent, child, beforeNode);\n    }\n    else {\n        nativeAppendChild(renderer, parent, child);\n    }\n}\n/**\n * Removes a node from the DOM given its native parent.\n * @param {?} renderer\n * @param {?} parent\n * @param {?} child\n * @param {?=} isHostElement\n * @return {?}\n */\nfunction nativeRemoveChild(renderer, parent, child, isHostElement) {\n    if (isProceduralRenderer(renderer)) {\n        renderer.removeChild(parent, child, isHostElement);\n    }\n    else {\n        parent.removeChild(child);\n    }\n}\n/**\n * Returns a native parent of a given native node.\n * @param {?} renderer\n * @param {?} node\n * @return {?}\n */\nfunction nativeParentNode(renderer, node) {\n    return (/** @type {?} */ ((isProceduralRenderer(renderer) ? renderer.parentNode(node) : node.parentNode)));\n}\n/**\n * Returns a native sibling of a given native node.\n * @param {?} renderer\n * @param {?} node\n * @return {?}\n */\nfunction nativeNextSibling(renderer, node) {\n    return isProceduralRenderer(renderer) ? renderer.nextSibling(node) : node.nextSibling;\n}\n/**\n * Finds a native \"anchor\" node for cases where we can't append a native child directly\n * (`appendChild`) and need to use a reference (anchor) node for the `insertBefore` operation.\n * @param {?} parentTNode\n * @param {?} lView\n * @return {?}\n */\nfunction getNativeAnchorNode(parentTNode, lView) {\n    if (parentTNode.type === 2 /* View */) {\n        /** @type {?} */\n        const lContainer = getLContainer((/** @type {?} */ (parentTNode)), lView);\n        if (lContainer === null)\n            return null;\n        /** @type {?} */\n        const index = lContainer.indexOf(lView, CONTAINER_HEADER_OFFSET) - CONTAINER_HEADER_OFFSET;\n        return getBeforeNodeForView(index, lContainer);\n    }\n    else if (parentTNode.type === 4 /* ElementContainer */ ||\n        parentTNode.type === 5 /* IcuContainer */) {\n        return getNativeByTNode(parentTNode, lView);\n    }\n    return null;\n}\n/**\n * Appends the `child` native node (or a collection of nodes) to the `parent`.\n *\n * The element insertion might be delayed {\\@link canInsertNativeNode}.\n *\n * @param {?} tView The `TView' to be appended\n * @param {?} lView The current LView\n * @param {?} childEl The native child (or children) that should be appended\n * @param {?} childTNode The TNode of the child element\n * @return {?} Whether or not the child was appended\n */\nfunction appendChild(tView, lView, childEl, childTNode) {\n    /** @type {?} */\n    const renderParent = getRenderParent(tView, childTNode, lView);\n    if (renderParent != null) {\n        /** @type {?} */\n        const renderer = lView[RENDERER];\n        /** @type {?} */\n        const parentTNode = childTNode.parent || (/** @type {?} */ (lView[T_HOST]));\n        /** @type {?} */\n        const anchorNode = getNativeAnchorNode(parentTNode, lView);\n        if (Array.isArray(childEl)) {\n            for (let i = 0; i < childEl.length; i++) {\n                nativeAppendOrInsertBefore(renderer, renderParent, childEl[i], anchorNode);\n            }\n        }\n        else {\n            nativeAppendOrInsertBefore(renderer, renderParent, childEl, anchorNode);\n        }\n    }\n}\n/**\n * Returns the first native node for a given LView, starting from the provided TNode.\n *\n * Native nodes are returned in the order in which those appear in the native tree (DOM).\n * @param {?} lView\n * @param {?} tNode\n * @return {?}\n */\nfunction getFirstNativeNode(lView, tNode) {\n    if (tNode !== null) {\n        ngDevMode &&\n            assertNodeOfPossibleTypes(tNode, 3 /* Element */, 0 /* Container */, 4 /* ElementContainer */, 5 /* IcuContainer */, 1 /* Projection */);\n        /** @type {?} */\n        const tNodeType = tNode.type;\n        if (tNodeType === 3 /* Element */) {\n            return getNativeByTNode(tNode, lView);\n        }\n        else if (tNodeType === 0 /* Container */) {\n            return getBeforeNodeForView(-1, lView[tNode.index]);\n        }\n        else if (tNodeType === 4 /* ElementContainer */ || tNodeType === 5 /* IcuContainer */) {\n            /** @type {?} */\n            const elIcuContainerChild = tNode.child;\n            if (elIcuContainerChild !== null) {\n                return getFirstNativeNode(lView, elIcuContainerChild);\n            }\n            else {\n                /** @type {?} */\n                const rNodeOrLContainer = lView[tNode.index];\n                if (isLContainer(rNodeOrLContainer)) {\n                    return getBeforeNodeForView(-1, rNodeOrLContainer);\n                }\n                else {\n                    return unwrapRNode(rNodeOrLContainer);\n                }\n            }\n        }\n        else {\n            /** @type {?} */\n            const componentView = lView[DECLARATION_COMPONENT_VIEW];\n            /** @type {?} */\n            const componentHost = (/** @type {?} */ (componentView[T_HOST]));\n            /** @type {?} */\n            const parentView = getLViewParent(componentView);\n            /** @type {?} */\n            const firstProjectedTNode = ((/** @type {?} */ (componentHost.projection)))[(/** @type {?} */ (tNode.projection))];\n            if (firstProjectedTNode != null) {\n                return getFirstNativeNode((/** @type {?} */ (parentView)), firstProjectedTNode);\n            }\n            else {\n                return getFirstNativeNode(lView, tNode.next);\n            }\n        }\n    }\n    return null;\n}\n/**\n * @param {?} viewIndexInContainer\n * @param {?} lContainer\n * @return {?}\n */\nfunction getBeforeNodeForView(viewIndexInContainer, lContainer) {\n    /** @type {?} */\n    const nextViewIndex = CONTAINER_HEADER_OFFSET + viewIndexInContainer + 1;\n    if (nextViewIndex < lContainer.length) {\n        /** @type {?} */\n        const lView = (/** @type {?} */ (lContainer[nextViewIndex]));\n        /** @type {?} */\n        const firstTNodeOfView = lView[TVIEW].firstChild;\n        if (firstTNodeOfView !== null) {\n            return getFirstNativeNode(lView, firstTNodeOfView);\n        }\n    }\n    return lContainer[NATIVE];\n}\n/**\n * Removes a native node itself using a given renderer. To remove the node we are looking up its\n * parent from the native tree as not all platforms / browsers support the equivalent of\n * node.remove().\n *\n * @param {?} renderer A renderer to be used\n * @param {?} rNode The native node that should be removed\n * @param {?=} isHostElement A flag indicating if a node to be removed is a host of a component.\n * @return {?}\n */\nfunction nativeRemoveNode(renderer, rNode, isHostElement) {\n    /** @type {?} */\n    const nativeParent = nativeParentNode(renderer, rNode);\n    if (nativeParent) {\n        nativeRemoveChild(renderer, nativeParent, rNode, isHostElement);\n    }\n}\n/**\n * Performs the operation of `action` on the node. Typically this involves inserting or removing\n * nodes on the LView or projection boundary.\n * @param {?} renderer\n * @param {?} action\n * @param {?} tNode\n * @param {?} lView\n * @param {?} renderParent\n * @param {?} beforeNode\n * @param {?} isProjection\n * @return {?}\n */\nfunction applyNodes(renderer, action, tNode, lView, renderParent, beforeNode, isProjection) {\n    while (tNode != null) {\n        ngDevMode && assertTNodeForLView(tNode, lView);\n        ngDevMode &&\n            assertNodeOfPossibleTypes(tNode, 0 /* Container */, 3 /* Element */, 4 /* ElementContainer */, 1 /* Projection */, 1 /* Projection */, 5 /* IcuContainer */);\n        /** @type {?} */\n        const rawSlotValue = lView[tNode.index];\n        /** @type {?} */\n        const tNodeType = tNode.type;\n        if (isProjection) {\n            if (action === 0 /* Create */) {\n                rawSlotValue && attachPatchData(unwrapRNode(rawSlotValue), lView);\n                tNode.flags |= 4 /* isProjected */;\n            }\n        }\n        if ((tNode.flags & 64 /* isDetached */) !== 64 /* isDetached */) {\n            if (tNodeType === 4 /* ElementContainer */ || tNodeType === 5 /* IcuContainer */) {\n                applyNodes(renderer, action, tNode.child, lView, renderParent, beforeNode, false);\n                applyToElementOrContainer(action, renderer, renderParent, rawSlotValue, beforeNode);\n            }\n            else if (tNodeType === 1 /* Projection */) {\n                applyProjectionRecursive(renderer, action, lView, (/** @type {?} */ (tNode)), renderParent, beforeNode);\n            }\n            else {\n                ngDevMode && assertNodeOfPossibleTypes(tNode, 3 /* Element */, 0 /* Container */);\n                applyToElementOrContainer(action, renderer, renderParent, rawSlotValue, beforeNode);\n            }\n        }\n        tNode = isProjection ? tNode.projectionNext : tNode.next;\n    }\n}\n/**\n * `applyView` performs operation on the view as specified in `action` (insert, detach, destroy)\n *\n * Inserting a view without projection or containers at top level is simple. Just iterate over the\n * root nodes of the View, and for each node perform the `action`.\n *\n * Things get more complicated with containers and projections. That is because coming across:\n * - Container: implies that we have to insert/remove/destroy the views of that container as well\n *              which in turn can have their own Containers at the View roots.\n * - Projection: implies that we have to insert/remove/destroy the nodes of the projection. The\n *               complication is that the nodes we are projecting can themselves have Containers\n *               or other Projections.\n *\n * As you can see this is a very recursive problem. Yes recursion is not most efficient but the\n * code is complicated enough that trying to implemented with recursion becomes unmaintainable.\n *\n * @param {?} tView The `TView' which needs to be inserted, detached, destroyed\n * @param {?} lView The LView which needs to be inserted, detached, destroyed.\n * @param {?} renderer Renderer to use\n * @param {?} action action to perform (insert, detach, destroy)\n * @param {?} renderParent parent DOM element for insertion/removal.\n * @param {?} beforeNode Before which node the insertions should happen.\n * @return {?}\n */\nfunction applyView(tView, lView, renderer, action, renderParent, beforeNode) {\n    ngDevMode && assertNodeType((/** @type {?} */ (tView.node)), 2 /* View */);\n    /** @type {?} */\n    const viewRootTNode = (/** @type {?} */ (tView.node)).child;\n    applyNodes(renderer, action, viewRootTNode, lView, renderParent, beforeNode, false);\n}\n/**\n * `applyProjection` performs operation on the projection.\n *\n * Inserting a projection requires us to locate the projected nodes from the parent component. The\n * complication is that those nodes themselves could be re-projected from their parent component.\n *\n * @param {?} tView The `TView` of `LView` which needs to be inserted, detached, destroyed\n * @param {?} lView The `LView` which needs to be inserted, detached, destroyed.\n * @param {?} tProjectionNode node to project\n * @return {?}\n */\nfunction applyProjection(tView, lView, tProjectionNode) {\n    /** @type {?} */\n    const renderer = lView[RENDERER];\n    /** @type {?} */\n    const renderParent = getRenderParent(tView, tProjectionNode, lView);\n    /** @type {?} */\n    const parentTNode = tProjectionNode.parent || (/** @type {?} */ (lView[T_HOST]));\n    /** @type {?} */\n    let beforeNode = getNativeAnchorNode(parentTNode, lView);\n    applyProjectionRecursive(renderer, 0 /* Create */, lView, tProjectionNode, renderParent, beforeNode);\n}\n/**\n * `applyProjectionRecursive` performs operation on the projection specified by `action` (insert,\n * detach, destroy)\n *\n * Inserting a projection requires us to locate the projected nodes from the parent component. The\n * complication is that those nodes themselves could be re-projected from their parent component.\n *\n * @param {?} renderer Render to use\n * @param {?} action action to perform (insert, detach, destroy)\n * @param {?} lView The LView which needs to be inserted, detached, destroyed.\n * @param {?} tProjectionNode node to project\n * @param {?} renderParent parent DOM element for insertion/removal.\n * @param {?} beforeNode Before which node the insertions should happen.\n * @return {?}\n */\nfunction applyProjectionRecursive(renderer, action, lView, tProjectionNode, renderParent, beforeNode) {\n    /** @type {?} */\n    const componentLView = lView[DECLARATION_COMPONENT_VIEW];\n    /** @type {?} */\n    const componentNode = (/** @type {?} */ (componentLView[T_HOST]));\n    ngDevMode &&\n        assertEqual(typeof tProjectionNode.projection, 'number', 'expecting projection index');\n    /** @type {?} */\n    const nodeToProjectOrRNodes = (/** @type {?} */ ((/** @type {?} */ (componentNode.projection))[tProjectionNode.projection]));\n    if (Array.isArray(nodeToProjectOrRNodes)) {\n        // This should not exist, it is a bit of a hack. When we bootstrap a top level node and we\n        // need to support passing projectable nodes, so we cheat and put them in the TNode\n        // of the Host TView. (Yes we put instance info at the T Level). We can get away with it\n        // because we know that that TView is not shared and therefore it will not be a problem.\n        // This should be refactored and cleaned up.\n        for (let i = 0; i < nodeToProjectOrRNodes.length; i++) {\n            /** @type {?} */\n            const rNode = nodeToProjectOrRNodes[i];\n            applyToElementOrContainer(action, renderer, renderParent, rNode, beforeNode);\n        }\n    }\n    else {\n        /** @type {?} */\n        let nodeToProject = nodeToProjectOrRNodes;\n        /** @type {?} */\n        const projectedComponentLView = (/** @type {?} */ (componentLView[PARENT]));\n        applyNodes(renderer, action, nodeToProject, projectedComponentLView, renderParent, beforeNode, true);\n    }\n}\n/**\n * `applyContainer` performs an operation on the container and its views as specified by\n * `action` (insert, detach, destroy)\n *\n * Inserting a Container is complicated by the fact that the container may have Views which\n * themselves have containers or projections.\n *\n * @param {?} renderer Renderer to use\n * @param {?} action action to perform (insert, detach, destroy)\n * @param {?} lContainer The LContainer which needs to be inserted, detached, destroyed.\n * @param {?} renderParent parent DOM element for insertion/removal.\n * @param {?} beforeNode Before which node the insertions should happen.\n * @return {?}\n */\nfunction applyContainer(renderer, action, lContainer, renderParent, beforeNode) {\n    ngDevMode && assertLContainer(lContainer);\n    /** @type {?} */\n    const anchor = lContainer[NATIVE];\n    // LContainer has its own before node.\n    /** @type {?} */\n    const native = unwrapRNode(lContainer);\n    // An LContainer can be created dynamically on any node by injecting ViewContainerRef.\n    // Asking for a ViewContainerRef on an element will result in a creation of a separate anchor node\n    // (comment in the DOM) that will be different from the LContainer's host node. In this particular\n    // case we need to execute action on 2 nodes:\n    // - container's host node (this is done in the executeActionOnElementOrContainer)\n    // - container's host node (this is done here)\n    if (anchor !== native) {\n        // This is very strange to me (Misko). I would expect that the native is same as anchor. I don't\n        // see a reason why they should be different, but they are.\n        //\n        // If they are we need to process the second anchor as well.\n        applyToElementOrContainer(action, renderer, renderParent, anchor, beforeNode);\n    }\n    for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n        /** @type {?} */\n        const lView = (/** @type {?} */ (lContainer[i]));\n        applyView(lView[TVIEW], lView, renderer, action, renderParent, anchor);\n    }\n}\n/**\n * Writes class/style to element.\n *\n * @param {?} renderer Renderer to use.\n * @param {?} isClassBased `true` if it should be written to `class` (`false` to write to `style`)\n * @param {?} rNode The Node to write to.\n * @param {?} prop Property to write to. This would be the class/style name.\n * @param {?} value Value to write. If `null`/`undefined`/`false` this is considered a remove (set/add\n *        otherwise).\n * @return {?}\n */\nfunction applyStyling(renderer, isClassBased, rNode, prop, value) {\n    /** @type {?} */\n    const isProcedural = isProceduralRenderer(renderer);\n    if (isClassBased) {\n        // We actually want JS true/false here because any truthy value should add the class\n        if (!value) {\n            ngDevMode && ngDevMode.rendererRemoveClass++;\n            if (isProcedural) {\n                ((/** @type {?} */ (renderer))).removeClass(rNode, prop);\n            }\n            else {\n                ((/** @type {?} */ (rNode))).classList.remove(prop);\n            }\n        }\n        else {\n            ngDevMode && ngDevMode.rendererAddClass++;\n            if (isProcedural) {\n                ((/** @type {?} */ (renderer))).addClass(rNode, prop);\n            }\n            else {\n                ngDevMode && assertDefined(((/** @type {?} */ (rNode))).classList, 'HTMLElement expected');\n                ((/** @type {?} */ (rNode))).classList.add(prop);\n            }\n        }\n    }\n    else {\n        // TODO(misko): Can't import RendererStyleFlags2.DashCase as it causes imports to be resolved in\n        // different order which causes failures. Using direct constant as workaround for now.\n        /** @type {?} */\n        const flags = prop.indexOf('-') == -1 ? undefined : 2 /* RendererStyleFlags2.DashCase */;\n        if (value == null /** || value === undefined */) {\n            ngDevMode && ngDevMode.rendererRemoveStyle++;\n            if (isProcedural) {\n                ((/** @type {?} */ (renderer))).removeStyle(rNode, prop, flags);\n            }\n            else {\n                ((/** @type {?} */ (rNode))).style.removeProperty(prop);\n            }\n        }\n        else {\n            ngDevMode && ngDevMode.rendererSetStyle++;\n            if (isProcedural) {\n                ((/** @type {?} */ (renderer))).setStyle(rNode, prop, value, flags);\n            }\n            else {\n                ngDevMode && assertDefined(((/** @type {?} */ (rNode))).style, 'HTMLElement expected');\n                ((/** @type {?} */ (rNode))).style.setProperty(prop, value);\n            }\n        }\n    }\n}\n/**\n * Write `cssText` to `RElement`.\n *\n * This function does direct write without any reconciliation. Used for writing initial values, so\n * that static styling values do not pull in the style parser.\n *\n * @param {?} renderer Renderer to use\n * @param {?} element The element which needs to be updated.\n * @param {?} newValue The new class list to write.\n * @return {?}\n */\nfunction writeDirectStyle(renderer, element, newValue) {\n    ngDevMode && assertString(newValue, '\\'newValue\\' should be a string');\n    if (isProceduralRenderer(renderer)) {\n        renderer.setAttribute(element, 'style', newValue);\n    }\n    else {\n        ((/** @type {?} */ (element))).style.cssText = newValue;\n    }\n    ngDevMode && ngDevMode.rendererSetStyle++;\n}\n/**\n * Write `className` to `RElement`.\n *\n * This function does direct write without any reconciliation. Used for writing initial values, so\n * that static styling values do not pull in the style parser.\n *\n * @param {?} renderer Renderer to use\n * @param {?} element The element which needs to be updated.\n * @param {?} newValue The new class list to write.\n * @return {?}\n */\nfunction writeDirectClass(renderer, element, newValue) {\n    ngDevMode && assertString(newValue, '\\'newValue\\' should be a string');\n    if (isProceduralRenderer(renderer)) {\n        if (newValue === '') {\n            // There are tests in `google3` which expect `element.getAttribute('class')` to be `null`.\n            renderer.removeAttribute(element, 'class');\n        }\n        else {\n            renderer.setAttribute(element, 'class', newValue);\n        }\n    }\n    else {\n        element.className = newValue;\n    }\n    ngDevMode && ngDevMode.rendererSetClassName++;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/node_util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * If `startTNode.parent` exists and has an injector, returns TNode for that injector.\n * Otherwise, unwraps a parent injector location number to find the view offset from the current\n * injector, then walks up the declaration view tree until the TNode of the parent injector is\n * found.\n *\n * @param {?} location The location of the parent injector, which contains the view offset\n * @param {?} startView The LView instance from which to start walking up the view tree\n * @param {?} startTNode The TNode instance of the starting element\n * @return {?} The TNode of the parent injector\n */\nfunction getParentInjectorTNode(location, startView, startTNode) {\n    // If there is an injector on the parent TNode, retrieve the TNode for that injector.\n    if (startTNode.parent && startTNode.parent.injectorIndex !== -1) {\n        // view offset is 0\n        /** @type {?} */\n        const injectorIndex = startTNode.parent.injectorIndex;\n        /** @type {?} */\n        let tNode = startTNode.parent;\n        // If tNode.injectorIndex === tNode.parent.injectorIndex, then the index belongs to a parent\n        // injector.\n        while (tNode.parent != null && injectorIndex == tNode.parent.injectorIndex) {\n            tNode = tNode.parent;\n        }\n        return tNode;\n    }\n    /** @type {?} */\n    let viewOffset = getParentInjectorViewOffset(location);\n    // view offset is 1\n    /** @type {?} */\n    let parentView = startView;\n    /** @type {?} */\n    let parentTNode = (/** @type {?} */ (startView[T_HOST]));\n    // view offset is superior to 1\n    while (viewOffset > 1) {\n        parentView = (/** @type {?} */ (parentView[DECLARATION_VIEW]));\n        parentTNode = (/** @type {?} */ (parentView[T_HOST]));\n        viewOffset--;\n    }\n    return parentTNode;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/view_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction viewEngine_ChangeDetectorRef_interface() { }\n/**\n * @template T\n */\nclass ViewRef {\n    /**\n     * @param {?} _lView\n     * @param {?=} _cdRefInjectingView\n     */\n    constructor(_lView, _cdRefInjectingView) {\n        this._lView = _lView;\n        this._cdRefInjectingView = _cdRefInjectingView;\n        this._appRef = null;\n        this._viewContainerRef = null;\n    }\n    /**\n     * @return {?}\n     */\n    get rootNodes() {\n        /** @type {?} */\n        const lView = this._lView;\n        if (lView[HOST] == null) {\n            /** @type {?} */\n            const hostTView = (/** @type {?} */ (lView[T_HOST]));\n            return collectNativeNodes(lView[TVIEW], lView, hostTView.child, []);\n        }\n        return [];\n    }\n    /**\n     * @return {?}\n     */\n    get context() {\n        return (/** @type {?} */ (this._lView[CONTEXT]));\n    }\n    /**\n     * @return {?}\n     */\n    get destroyed() {\n        return (this._lView[FLAGS] & 256 /* Destroyed */) === 256 /* Destroyed */;\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (this._appRef) {\n            this._appRef.detachView(this);\n        }\n        else if (this._viewContainerRef) {\n            /** @type {?} */\n            const index = this._viewContainerRef.indexOf(this);\n            if (index > -1) {\n                this._viewContainerRef.detach(index);\n            }\n            this._viewContainerRef = null;\n        }\n        destroyLView(this._lView[TVIEW], this._lView);\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    onDestroy(callback) {\n        storeCleanupFn(this._lView[TVIEW], this._lView, callback);\n    }\n    /**\n     * Marks a view and all of its ancestors dirty.\n     *\n     * It also triggers change detection by calling `scheduleTick` internally, which coalesces\n     * multiple `markForCheck` calls to into one change detection run.\n     *\n     * This can be used to ensure an {\\@link ChangeDetectionStrategy#OnPush OnPush} component is\n     * checked when it needs to be re-rendered but the two normal triggers haven't marked it\n     * dirty (i.e. inputs haven't changed and events haven't fired in the view).\n     *\n     * <!-- TODO: Add a link to a chapter on OnPush components -->\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * \\@Component({\n     *   selector: 'my-app',\n     *   template: `Number of ticks: {{numberOfTicks}}`\n     *   changeDetection: ChangeDetectionStrategy.OnPush,\n     * })\n     * class AppComponent {\n     *   numberOfTicks = 0;\n     *\n     *   constructor(private ref: ChangeDetectorRef) {\n     *     setInterval(() => {\n     *       this.numberOfTicks++;\n     *       // the following is required, otherwise the view will not be updated\n     *       this.ref.markForCheck();\n     *     }, 1000);\n     *   }\n     * }\n     * ```\n     * @return {?}\n     */\n    markForCheck() {\n        markViewDirty(this._cdRefInjectingView || this._lView);\n    }\n    /**\n     * Detaches the view from the change detection tree.\n     *\n     * Detached views will not be checked during change detection runs until they are\n     * re-attached, even if they are dirty. `detach` can be used in combination with\n     * {\\@link ChangeDetectorRef#detectChanges detectChanges} to implement local change\n     * detection checks.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     * <!-- TODO: Add a live demo once ref.detectChanges is merged into master -->\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * The following example defines a component with a large list of readonly data.\n     * Imagine the data changes constantly, many times per second. For performance reasons,\n     * we want to check and update the list every five seconds. We can do that by detaching\n     * the component's change detector and doing a local check every five seconds.\n     *\n     * ```typescript\n     * class DataProvider {\n     *   // in a real application the returned data will be different every time\n     *   get data() {\n     *     return [1,2,3,4,5];\n     *   }\n     * }\n     *\n     * \\@Component({\n     *   selector: 'giant-list',\n     *   template: `\n     *     <li *ngFor=\"let d of dataProvider.data\">Data {{d}}</li>\n     *   `,\n     * })\n     * class GiantList {\n     *   constructor(private ref: ChangeDetectorRef, private dataProvider: DataProvider) {\n     *     ref.detach();\n     *     setInterval(() => {\n     *       this.ref.detectChanges();\n     *     }, 5000);\n     *   }\n     * }\n     *  /\n     *   selector: 'app',\n     *   providers: [DataProvider],\n     *   template: `\n     *     <giant-list><giant-list>\n     *   `,\n     * })\n     * class App {\n     * }\n     * ```\n     * @return {?}\n     */\n    detach() {\n        this._lView[FLAGS] &= ~128 /* Attached */;\n    }\n    /**\n     * Re-attaches a view to the change detection tree.\n     *\n     * This can be used to re-attach views that were previously detached from the tree\n     * using {\\@link ChangeDetectorRef#detach detach}. Views are attached to the tree by default.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * The following example creates a component displaying `live` data. The component will detach\n     * its change detector from the main change detector tree when the component's live property\n     * is set to false.\n     *\n     * ```typescript\n     * class DataProvider {\n     *   data = 1;\n     *\n     *   constructor() {\n     *     setInterval(() => {\n     *       this.data = this.data * 2;\n     *     }, 500);\n     *   }\n     * }\n     *\n     * \\@Component({\n     *   selector: 'live-data',\n     *   inputs: ['live'],\n     *   template: 'Data: {{dataProvider.data}}'\n     * })\n     * class LiveData {\n     *   constructor(private ref: ChangeDetectorRef, private dataProvider: DataProvider) {}\n     *\n     *   set live(value) {\n     *     if (value) {\n     *       this.ref.reattach();\n     *     } else {\n     *       this.ref.detach();\n     *     }\n     *   }\n     * }\n     *  /\n     *   selector: 'my-app',\n     *   providers: [DataProvider],\n     *   template: `\n     *     Live Update: <input type=\"checkbox\" [(ngModel)]=\"live\">\n     *     <live-data [live]=\"live\"><live-data>\n     *   `,\n     * })\n     * class AppComponent {\n     *   live = true;\n     * }\n     * ```\n     * @return {?}\n     */\n    reattach() {\n        this._lView[FLAGS] |= 128 /* Attached */;\n    }\n    /**\n     * Checks the view and its children.\n     *\n     * This can also be used in combination with {\\@link ChangeDetectorRef#detach detach} to implement\n     * local change detection checks.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     * <!-- TODO: Add a live demo once ref.detectChanges is merged into master -->\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * The following example defines a component with a large list of readonly data.\n     * Imagine, the data changes constantly, many times per second. For performance reasons,\n     * we want to check and update the list every five seconds.\n     *\n     * We can do that by detaching the component's change detector and doing a local change detection\n     * check every five seconds.\n     *\n     * See {\\@link ChangeDetectorRef#detach detach} for more information.\n     * @return {?}\n     */\n    detectChanges() {\n        detectChangesInternal(this._lView[TVIEW], this._lView, this.context);\n    }\n    /**\n     * Checks the change detector and its children, and throws if any changes are detected.\n     *\n     * This is used in development mode to verify that running change detection doesn't\n     * introduce other changes.\n     * @return {?}\n     */\n    checkNoChanges() {\n        checkNoChangesInternal(this._lView[TVIEW], this._lView, this.context);\n    }\n    /**\n     * @param {?} vcRef\n     * @return {?}\n     */\n    attachToViewContainerRef(vcRef) {\n        if (this._appRef) {\n            throw new Error('This view is already attached directly to the ApplicationRef!');\n        }\n        this._viewContainerRef = vcRef;\n    }\n    /**\n     * @return {?}\n     */\n    detachFromAppRef() {\n        this._appRef = null;\n        renderDetachView(this._lView[TVIEW], this._lView);\n    }\n    /**\n     * @param {?} appRef\n     * @return {?}\n     */\n    attachToAppRef(appRef) {\n        if (this._viewContainerRef) {\n            throw new Error('This view is already attached to a ViewContainer!');\n        }\n        this._appRef = appRef;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewRef.prototype._appRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewRef.prototype._viewContainerRef;\n    /**\n     * This represents `LView` associated with the component when ViewRef is a ChangeDetectorRef.\n     *\n     * When ViewRef is created for a dynamic component, this also represents the `LView` for the\n     * component.\n     *\n     * For a \"regular\" ViewRef created for an embedded view, this is the `LView` for the embedded\n     * view.\n     *\n     * \\@internal\n     * @type {?}\n     */\n    ViewRef.prototype._lView;\n    /**\n     * This represents the `LView` associated with the point where `ChangeDetectorRef` was\n     * requested.\n     *\n     * This may be different from `_lView` if the `_cdRefInjectingView` is an embedded view.\n     * @type {?}\n     * @private\n     */\n    ViewRef.prototype._cdRefInjectingView;\n}\n/**\n * \\@internal\n * @template T\n */\nclass RootViewRef extends ViewRef {\n    /**\n     * @param {?} _view\n     */\n    constructor(_view) {\n        super(_view);\n        this._view = _view;\n    }\n    /**\n     * @return {?}\n     */\n    detectChanges() {\n        detectChangesInRootView(this._view);\n    }\n    /**\n     * @return {?}\n     */\n    checkNoChanges() {\n        checkNoChangesInRootView(this._view);\n    }\n    /**\n     * @return {?}\n     */\n    get context() {\n        return (/** @type {?} */ (null));\n    }\n}\nif (false) {\n    /** @type {?} */\n    RootViewRef.prototype._view;\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} tNode\n * @param {?} result\n * @param {?=} isProjection\n * @return {?}\n */\nfunction collectNativeNodes(tView, lView, tNode, result, isProjection = false) {\n    while (tNode !== null) {\n        ngDevMode &&\n            assertNodeOfPossibleTypes(tNode, 3 /* Element */, 0 /* Container */, 1 /* Projection */, 4 /* ElementContainer */, 5 /* IcuContainer */);\n        /** @type {?} */\n        const lNode = lView[tNode.index];\n        if (lNode !== null) {\n            result.push(unwrapRNode(lNode));\n        }\n        // A given lNode can represent either a native node or a LContainer (when it is a host of a\n        // ViewContainerRef). When we find a LContainer we need to descend into it to collect root nodes\n        // from the views in this container.\n        if (isLContainer(lNode)) {\n            for (let i = CONTAINER_HEADER_OFFSET; i < lNode.length; i++) {\n                /** @type {?} */\n                const lViewInAContainer = lNode[i];\n                /** @type {?} */\n                const lViewFirstChildTNode = lViewInAContainer[TVIEW].firstChild;\n                if (lViewFirstChildTNode !== null) {\n                    collectNativeNodes(lViewInAContainer[TVIEW], lViewInAContainer, lViewFirstChildTNode, result);\n                }\n            }\n        }\n        /** @type {?} */\n        const tNodeType = tNode.type;\n        if (tNodeType === 4 /* ElementContainer */ || tNodeType === 5 /* IcuContainer */) {\n            collectNativeNodes(tView, lView, tNode.child, result);\n        }\n        else if (tNodeType === 1 /* Projection */) {\n            /** @type {?} */\n            const componentView = lView[DECLARATION_COMPONENT_VIEW];\n            /** @type {?} */\n            const componentHost = (/** @type {?} */ (componentView[T_HOST]));\n            /** @type {?} */\n            const slotIdx = (/** @type {?} */ (tNode.projection));\n            ngDevMode &&\n                assertDefined(componentHost.projection, 'Components with projection nodes (<ng-content>) must have projection slots defined.');\n            /** @type {?} */\n            const nodesInSlot = (/** @type {?} */ (componentHost.projection))[slotIdx];\n            if (Array.isArray(nodesInSlot)) {\n                result.push(...nodesInSlot);\n            }\n            else {\n                /** @type {?} */\n                const parentView = (/** @type {?} */ (getLViewParent(componentView)));\n                ngDevMode &&\n                    assertDefined(parentView, 'Component views should always have a parent view (component\\'s host view)');\n                collectNativeNodes(parentView[TVIEW], parentView, nodesInSlot, result, true);\n            }\n        }\n        tNode = isProjection ? tNode.projectionNext : tNode.next;\n    }\n    return result;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/view_engine_compatibility.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Creates an ElementRef from the most recent node.\n *\n * @param {?} ElementRefToken\n * @return {?} The ElementRef instance to use\n */\nfunction injectElementRef(ElementRefToken) {\n    return createElementRef(ElementRefToken, getPreviousOrParentTNode(), getLView());\n}\n/** @type {?} */\nlet R3ElementRef;\n/**\n * Creates an ElementRef given a node.\n *\n * @param {?} ElementRefToken The ElementRef type\n * @param {?} tNode The node for which you'd like an ElementRef\n * @param {?} view The view to which the node belongs\n * @return {?} The ElementRef instance to use\n */\nfunction createElementRef(ElementRefToken, tNode, view) {\n    if (!R3ElementRef) {\n        R3ElementRef = class ElementRef extends ElementRefToken {\n        };\n    }\n    return new R3ElementRef((/** @type {?} */ (getNativeByTNode(tNode, view))));\n}\n/** @type {?} */\nlet R3TemplateRef;\n/**\n * Creates a TemplateRef given a node.\n *\n * @template T\n * @param {?} TemplateRefToken\n * @param {?} ElementRefToken\n * @return {?} The TemplateRef instance to use\n */\nfunction injectTemplateRef(TemplateRefToken, ElementRefToken) {\n    return createTemplateRef(TemplateRefToken, ElementRefToken, getPreviousOrParentTNode(), getLView());\n}\n/**\n * Creates a TemplateRef and stores it on the injector.\n *\n * @template T\n * @param {?} TemplateRefToken The TemplateRef type\n * @param {?} ElementRefToken The ElementRef type\n * @param {?} hostTNode The node on which a TemplateRef is requested\n * @param {?} hostView The view to which the node belongs\n * @return {?} The TemplateRef instance or null if we can't create a TemplateRef on a given node type\n */\nfunction createTemplateRef(TemplateRefToken, ElementRefToken, hostTNode, hostView) {\n    if (!R3TemplateRef) {\n        R3TemplateRef = class TemplateRef extends TemplateRefToken {\n            /**\n             * @param {?} _declarationView\n             * @param {?} _declarationTContainer\n             * @param {?} elementRef\n             */\n            constructor(_declarationView, _declarationTContainer, elementRef) {\n                super();\n                this._declarationView = _declarationView;\n                this._declarationTContainer = _declarationTContainer;\n                this.elementRef = elementRef;\n            }\n            /**\n             * @param {?} context\n             * @return {?}\n             */\n            createEmbeddedView(context) {\n                /** @type {?} */\n                const embeddedTView = (/** @type {?} */ (this._declarationTContainer.tViews));\n                /** @type {?} */\n                const embeddedLView = createLView(this._declarationView, embeddedTView, context, 16 /* CheckAlways */, null, embeddedTView.node);\n                /** @type {?} */\n                const declarationLContainer = this._declarationView[this._declarationTContainer.index];\n                ngDevMode && assertLContainer(declarationLContainer);\n                embeddedLView[DECLARATION_LCONTAINER] = declarationLContainer;\n                /** @type {?} */\n                const declarationViewLQueries = this._declarationView[QUERIES];\n                if (declarationViewLQueries !== null) {\n                    embeddedLView[QUERIES] = declarationViewLQueries.createEmbeddedView(embeddedTView);\n                }\n                renderView(embeddedTView, embeddedLView, context);\n                return new ViewRef(embeddedLView);\n            }\n        };\n    }\n    if (hostTNode.type === 0 /* Container */) {\n        ngDevMode && assertDefined(hostTNode.tViews, 'TView must be allocated');\n        return new R3TemplateRef(hostView, (/** @type {?} */ (hostTNode)), createElementRef(ElementRefToken, hostTNode, hostView));\n    }\n    else {\n        return null;\n    }\n}\n/** @type {?} */\nlet R3ViewContainerRef;\n/**\n * Creates a ViewContainerRef and stores it on the injector. Or, if the ViewContainerRef\n * already exists, retrieves the existing ViewContainerRef.\n *\n * @param {?} ViewContainerRefToken\n * @param {?} ElementRefToken\n * @return {?} The ViewContainerRef instance to use\n */\nfunction injectViewContainerRef(ViewContainerRefToken, ElementRefToken) {\n    /** @type {?} */\n    const previousTNode = (/** @type {?} */ (getPreviousOrParentTNode()));\n    return createContainerRef(ViewContainerRefToken, ElementRefToken, previousTNode, getLView());\n}\n/**\n * Creates a ViewContainerRef and stores it on the injector.\n *\n * @param {?} ViewContainerRefToken The ViewContainerRef type\n * @param {?} ElementRefToken The ElementRef type\n * @param {?} hostTNode The node that is requesting a ViewContainerRef\n * @param {?} hostView The view to which the node belongs\n * @return {?} The ViewContainerRef instance to use\n */\nfunction createContainerRef(ViewContainerRefToken, ElementRefToken, hostTNode, hostView) {\n    if (!R3ViewContainerRef) {\n        R3ViewContainerRef = class ViewContainerRef extends ViewContainerRefToken {\n            /**\n             * @param {?} _lContainer\n             * @param {?} _hostTNode\n             * @param {?} _hostView\n             */\n            constructor(_lContainer, _hostTNode, _hostView) {\n                super();\n                this._lContainer = _lContainer;\n                this._hostTNode = _hostTNode;\n                this._hostView = _hostView;\n            }\n            /**\n             * @return {?}\n             */\n            get element() {\n                return createElementRef(ElementRefToken, this._hostTNode, this._hostView);\n            }\n            /**\n             * @return {?}\n             */\n            get injector() {\n                return new NodeInjector(this._hostTNode, this._hostView);\n            }\n            /**\n             * @deprecated No replacement\n             * @return {?}\n             */\n            get parentInjector() {\n                /** @type {?} */\n                const parentLocation = getParentInjectorLocation(this._hostTNode, this._hostView);\n                /** @type {?} */\n                const parentView = getParentInjectorView(parentLocation, this._hostView);\n                /** @type {?} */\n                const parentTNode = getParentInjectorTNode(parentLocation, this._hostView, this._hostTNode);\n                return !hasParentInjector(parentLocation) || parentTNode == null ?\n                    new NodeInjector(null, this._hostView) :\n                    new NodeInjector(parentTNode, parentView);\n            }\n            /**\n             * @return {?}\n             */\n            clear() {\n                while (this.length > 0) {\n                    this.remove(this.length - 1);\n                }\n            }\n            /**\n             * @param {?} index\n             * @return {?}\n             */\n            get(index) {\n                return this._lContainer[VIEW_REFS] !== null && (/** @type {?} */ (this._lContainer[VIEW_REFS]))[index] || null;\n            }\n            /**\n             * @return {?}\n             */\n            get length() {\n                return this._lContainer.length - CONTAINER_HEADER_OFFSET;\n            }\n            /**\n             * @template C\n             * @param {?} templateRef\n             * @param {?=} context\n             * @param {?=} index\n             * @return {?}\n             */\n            createEmbeddedView(templateRef, context, index) {\n                /** @type {?} */\n                const viewRef = templateRef.createEmbeddedView(context || (/** @type {?} */ ({})));\n                this.insert(viewRef, index);\n                return viewRef;\n            }\n            /**\n             * @template C\n             * @param {?} componentFactory\n             * @param {?=} index\n             * @param {?=} injector\n             * @param {?=} projectableNodes\n             * @param {?=} ngModuleRef\n             * @return {?}\n             */\n            createComponent(componentFactory, index, injector, projectableNodes, ngModuleRef) {\n                /** @type {?} */\n                const contextInjector = injector || this.parentInjector;\n                if (!ngModuleRef && ((/** @type {?} */ (componentFactory))).ngModule == null && contextInjector) {\n                    // DO NOT REFACTOR. The code here used to have a `value || undefined` expression\n                    // which seems to cause internal google apps to fail. This is documented in the\n                    // following internal bug issue: go/b/142967802\n                    /** @type {?} */\n                    const result = contextInjector.get(NgModuleRef, null);\n                    if (result) {\n                        ngModuleRef = result;\n                    }\n                }\n                /** @type {?} */\n                const componentRef = componentFactory.create(contextInjector, projectableNodes, undefined, ngModuleRef);\n                this.insert(componentRef.hostView, index);\n                return componentRef;\n            }\n            /**\n             * @param {?} viewRef\n             * @param {?=} index\n             * @return {?}\n             */\n            insert(viewRef, index) {\n                /** @type {?} */\n                const lView = (/** @type {?} */ (((/** @type {?} */ (viewRef)))._lView));\n                /** @type {?} */\n                const tView = lView[TVIEW];\n                if (viewRef.destroyed) {\n                    throw new Error('Cannot insert a destroyed View in a ViewContainer!');\n                }\n                this.allocateContainerIfNeeded();\n                if (viewAttachedToContainer(lView)) {\n                    // If view is already attached, detach it first so we clean up references appropriately.\n                    /** @type {?} */\n                    const prevIdx = this.indexOf(viewRef);\n                    // A view might be attached either to this or a different container. The `prevIdx` for\n                    // those cases will be:\n                    // equal to -1 for views attached to this ViewContainerRef\n                    // >= 0 for views attached to a different ViewContainerRef\n                    if (prevIdx !== -1) {\n                        this.detach(prevIdx);\n                    }\n                    else {\n                        /** @type {?} */\n                        const prevLContainer = (/** @type {?} */ (lView[PARENT]));\n                        ngDevMode &&\n                            assertEqual(isLContainer(prevLContainer), true, 'An attached view should have its PARENT point to a container.');\n                        // We need to re-create a R3ViewContainerRef instance since those are not stored on\n                        // LView (nor anywhere else).\n                        /** @type {?} */\n                        const prevVCRef = new R3ViewContainerRef(prevLContainer, (/** @type {?} */ (prevLContainer[T_HOST])), prevLContainer[PARENT]);\n                        prevVCRef.detach(prevVCRef.indexOf(viewRef));\n                    }\n                }\n                /** @type {?} */\n                const adjustedIdx = this._adjustIndex(index);\n                insertView(tView, lView, this._lContainer, adjustedIdx);\n                /** @type {?} */\n                const beforeNode = getBeforeNodeForView(adjustedIdx, this._lContainer);\n                addRemoveViewFromContainer(tView, lView, true, beforeNode);\n                ((/** @type {?} */ (viewRef))).attachToViewContainerRef(this);\n                addToArray((/** @type {?} */ (this._lContainer[VIEW_REFS])), adjustedIdx, viewRef);\n                return viewRef;\n            }\n            /**\n             * @param {?} viewRef\n             * @param {?} newIndex\n             * @return {?}\n             */\n            move(viewRef, newIndex) {\n                if (viewRef.destroyed) {\n                    throw new Error('Cannot move a destroyed View in a ViewContainer!');\n                }\n                return this.insert(viewRef, newIndex);\n            }\n            /**\n             * @param {?} viewRef\n             * @return {?}\n             */\n            indexOf(viewRef) {\n                /** @type {?} */\n                const viewRefsArr = this._lContainer[VIEW_REFS];\n                return viewRefsArr !== null ? viewRefsArr.indexOf(viewRef) : -1;\n            }\n            /**\n             * @param {?=} index\n             * @return {?}\n             */\n            remove(index) {\n                this.allocateContainerIfNeeded();\n                /** @type {?} */\n                const adjustedIdx = this._adjustIndex(index, -1);\n                removeView(this._lContainer, adjustedIdx);\n                removeFromArray((/** @type {?} */ (this._lContainer[VIEW_REFS])), adjustedIdx);\n            }\n            /**\n             * @param {?=} index\n             * @return {?}\n             */\n            detach(index) {\n                this.allocateContainerIfNeeded();\n                /** @type {?} */\n                const adjustedIdx = this._adjustIndex(index, -1);\n                /** @type {?} */\n                const view = detachView(this._lContainer, adjustedIdx);\n                /** @type {?} */\n                const wasDetached = view && removeFromArray((/** @type {?} */ (this._lContainer[VIEW_REFS])), adjustedIdx) != null;\n                return wasDetached ? new ViewRef((/** @type {?} */ (view))) : null;\n            }\n            /**\n             * @private\n             * @param {?=} index\n             * @param {?=} shift\n             * @return {?}\n             */\n            _adjustIndex(index, shift = 0) {\n                if (index == null) {\n                    return this.length + shift;\n                }\n                if (ngDevMode) {\n                    assertGreaterThan(index, -1, `ViewRef index must be positive, got ${index}`);\n                    // +1 because it's legal to insert at the end.\n                    assertLessThan(index, this.length + 1 + shift, 'index');\n                }\n                return index;\n            }\n            /**\n             * @private\n             * @return {?}\n             */\n            allocateContainerIfNeeded() {\n                if (this._lContainer[VIEW_REFS] === null) {\n                    this._lContainer[VIEW_REFS] = [];\n                }\n            }\n        };\n    }\n    ngDevMode &&\n        assertNodeOfPossibleTypes(hostTNode, 0 /* Container */, 3 /* Element */, 4 /* ElementContainer */);\n    /** @type {?} */\n    let lContainer;\n    /** @type {?} */\n    const slotValue = hostView[hostTNode.index];\n    if (isLContainer(slotValue)) {\n        // If the host is a container, we don't need to create a new LContainer\n        lContainer = slotValue;\n    }\n    else {\n        /** @type {?} */\n        let commentNode;\n        // If the host is an element container, the native host element is guaranteed to be a\n        // comment and we can reuse that comment as anchor element for the new LContainer.\n        // The comment node in question is already part of the DOM structure so we don't need to append\n        // it again.\n        if (hostTNode.type === 4 /* ElementContainer */) {\n            commentNode = (/** @type {?} */ (unwrapRNode(slotValue)));\n        }\n        else {\n            ngDevMode && ngDevMode.rendererCreateComment++;\n            commentNode = hostView[RENDERER].createComment(ngDevMode ? 'container' : '');\n            // A `ViewContainerRef` can be injected by the root (topmost / bootstrapped) component. In\n            // this case we can't use TView / TNode data structures to insert container's marker node\n            // (both a parent of a comment node and the comment node itself are not part of any view). In\n            // this specific case we use low-level DOM manipulation to insert container's marker (comment)\n            // node.\n            if (isRootView(hostView)) {\n                /** @type {?} */\n                const renderer = hostView[RENDERER];\n                /** @type {?} */\n                const hostNative = (/** @type {?} */ (getNativeByTNode(hostTNode, hostView)));\n                /** @type {?} */\n                const parentOfHostNative = nativeParentNode(renderer, hostNative);\n                nativeInsertBefore(renderer, (/** @type {?} */ (parentOfHostNative)), commentNode, nativeNextSibling(renderer, hostNative));\n            }\n            else {\n                appendChild(hostView[TVIEW], hostView, commentNode, hostTNode);\n            }\n        }\n        hostView[hostTNode.index] = lContainer =\n            createLContainer(slotValue, hostView, commentNode, hostTNode);\n        addToViewTree(hostView, lContainer);\n    }\n    return new R3ViewContainerRef(lContainer, hostTNode, hostView);\n}\n/**\n * Returns a ChangeDetectorRef (a.k.a. a ViewRef)\n * @param {?=} isPipe\n * @return {?}\n */\nfunction injectChangeDetectorRef(isPipe = false) {\n    return createViewRef(getPreviousOrParentTNode(), getLView(), isPipe);\n}\n/**\n * Creates a ViewRef and stores it on the injector as ChangeDetectorRef (public alias).\n *\n * @param {?} tNode The node that is requesting a ChangeDetectorRef\n * @param {?} lView The view to which the node belongs\n * @param {?} isPipe Whether the view is being injected into a pipe.\n * @return {?} The ChangeDetectorRef to use\n */\nfunction createViewRef(tNode, lView, isPipe) {\n    // `isComponentView` will be true for Component and Directives (but not for Pipes).\n    // See https://github.com/angular/angular/pull/33072 for proper fix\n    /** @type {?} */\n    const isComponentView = !isPipe && isComponentHost(tNode);\n    if (isComponentView) {\n        // The LView represents the location where the component is declared.\n        // Instead we want the LView for the component View and so we need to look it up.\n        /** @type {?} */\n        const componentView = getComponentLViewByIndex(tNode.index, lView);\n        return new ViewRef(componentView, componentView);\n    }\n    else if (tNode.type === 3 /* Element */ || tNode.type === 0 /* Container */ ||\n        tNode.type === 4 /* ElementContainer */ || tNode.type === 5 /* IcuContainer */) {\n        // The LView represents the location where the injection is requested from.\n        // We need to locate the containing LView (in case where the `lView` is an embedded view)\n        /** @type {?} */\n        const hostComponentView = lView[DECLARATION_COMPONENT_VIEW];\n        return new ViewRef(hostComponentView, lView);\n    }\n    return (/** @type {?} */ (null));\n}\n/**\n * Returns a Renderer2 (or throws when application was bootstrapped with Renderer3)\n * @param {?} view\n * @return {?}\n */\nfunction getOrCreateRenderer2(view) {\n    /** @type {?} */\n    const renderer = view[RENDERER];\n    if (isProceduralRenderer(renderer)) {\n        return (/** @type {?} */ (renderer));\n    }\n    else {\n        throw new Error('Cannot inject Renderer2 when the application uses Renderer3!');\n    }\n}\n/**\n * Injects a Renderer2 for the current component.\n * @return {?}\n */\nfunction injectRenderer2() {\n    // We need the Renderer to be based on the component that it's being injected into, however since\n    // DI happens before we've entered its view, `getLView` will return the parent view instead.\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tNode = getPreviousOrParentTNode();\n    /** @type {?} */\n    const nodeAtIndex = getComponentLViewByIndex(tNode.index, lView);\n    return getOrCreateRenderer2(isLView(nodeAtIndex) ? nodeAtIndex : lView);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/change_detector_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Base class for Angular Views, provides change detection functionality.\n * A change-detection tree collects all views that are to be checked for changes.\n * Use the methods to add and remove views from the tree, initiate change-detection,\n * and explicitly mark views as _dirty_, meaning that they have changed and need to be rerendered.\n *\n * \\@usageNotes\n *\n * The following examples demonstrate how to modify default change-detection behavior\n * to perform explicit detection when needed.\n *\n * ### Use `markForCheck()` with `CheckOnce` strategy\n *\n * The following example sets the `OnPush` change-detection strategy for a component\n * (`CheckOnce`, rather than the default `CheckAlways`), then forces a second check\n * after an interval. See [live demo](http://plnkr.co/edit/GC512b?p=preview).\n *\n * <code-example path=\"core/ts/change_detect/change-detection.ts\"\n * region=\"mark-for-check\"></code-example>\n *\n * ### Detach change detector to limit how often check occurs\n *\n * The following example defines a component with a large list of read-only data\n * that is expected to change constantly, many times per second.\n * To improve performance, we want to check and update the list\n * less often than the changes actually occur. To do that, we detach\n * the component's change detector and perform an explicit local check every five seconds.\n *\n * <code-example path=\"core/ts/change_detect/change-detection.ts\" region=\"detach\"></code-example>\n *\n *\n * ### Reattaching a detached component\n *\n * The following example creates a component displaying live data.\n * The component detaches its change detector from the main change detector tree\n * when the `live` property is set to false, and reattaches it when the property\n * becomes true.\n *\n * <code-example path=\"core/ts/change_detect/change-detection.ts\" region=\"reattach\"></code-example>\n *\n * \\@publicApi\n * @abstract\n */\nclass ChangeDetectorRef {\n}\n/**\n * \\@internal\n * @nocollapse\n */\nChangeDetectorRef.__NG_ELEMENT_ID__ = (/**\n * @return {?}\n */\n() => SWITCH_CHANGE_DETECTOR_REF_FACTORY());\nif (false) {\n    /**\n     * \\@internal\n     * @nocollapse\n     * @type {?}\n     */\n    ChangeDetectorRef.__NG_ELEMENT_ID__;\n    /**\n     * When a view uses the {\\@link ChangeDetectionStrategy#OnPush OnPush} (checkOnce)\n     * change detection strategy, explicitly marks the view as changed so that\n     * it can be checked again.\n     *\n     * Components are normally marked as dirty (in need of rerendering) when inputs\n     * have changed or events have fired in the view. Call this method to ensure that\n     * a component is checked even if these triggers have not occured.\n     *\n     * <!-- TODO: Add a link to a chapter on OnPush components -->\n     *\n     * @abstract\n     * @return {?}\n     */\n    ChangeDetectorRef.prototype.markForCheck = function () { };\n    /**\n     * Detaches this view from the change-detection tree.\n     * A detached view is  not checked until it is reattached.\n     * Use in combination with `detectChanges()` to implement local change detection checks.\n     *\n     * Detached views are not checked during change detection runs until they are\n     * re-attached, even if they are marked as dirty.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     * <!-- TODO: Add a live demo once ref.detectChanges is merged into master -->\n     *\n     * @abstract\n     * @return {?}\n     */\n    ChangeDetectorRef.prototype.detach = function () { };\n    /**\n     * Checks this view and its children. Use in combination with {\\@link ChangeDetectorRef#detach\n     * detach}\n     * to implement local change detection checks.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     * <!-- TODO: Add a live demo once ref.detectChanges is merged into master -->\n     *\n     * @abstract\n     * @return {?}\n     */\n    ChangeDetectorRef.prototype.detectChanges = function () { };\n    /**\n     * Checks the change detector and its children, and throws if any changes are detected.\n     *\n     * Use in development mode to verify that running change detection doesn't introduce\n     * other changes.\n     * @abstract\n     * @return {?}\n     */\n    ChangeDetectorRef.prototype.checkNoChanges = function () { };\n    /**\n     * Re-attaches the previously detached view to the change detection tree.\n     * Views are attached to the tree by default.\n     *\n     * <!-- TODO: Add a link to a chapter on detach/reattach/local digest -->\n     *\n     * @abstract\n     * @return {?}\n     */\n    ChangeDetectorRef.prototype.reattach = function () { };\n}\n/** @type {?} */\nconst SWITCH_CHANGE_DETECTOR_REF_FACTORY__POST_R3__ = injectChangeDetectorRef;\n/** @type {?} */\nconst SWITCH_CHANGE_DETECTOR_REF_FACTORY__PRE_R3__ = (/**\n * @param {...?} args\n * @return {?}\n */\n(...args) => { });\nconst ɵ0$5 = SWITCH_CHANGE_DETECTOR_REF_FACTORY__POST_R3__;\n/** @type {?} */\nconst SWITCH_CHANGE_DETECTOR_REF_FACTORY = SWITCH_CHANGE_DETECTOR_REF_FACTORY__POST_R3__;\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @description\n *\n * Represents a type that a Component or other object is instances of.\n *\n * An example of a `Type` is `MyCustomComponent` class, which in JavaScript is be represented by\n * the `MyCustomComponent` constructor function.\n *\n * @publicApi\n */\nconst Type = Function;\nfunction isType(v) {\n    return typeof v === 'function';\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Attention: These regex has to hold even if the code is minified!\n */\nconst DELEGATE_CTOR = /^function\\s+\\S+\\(\\)\\s*{[\\s\\S]+\\.apply\\(this,\\s*arguments\\)/;\nconst INHERITED_CLASS = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{/;\nconst INHERITED_CLASS_WITH_CTOR = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{[\\s\\S]*constructor\\s*\\(/;\nconst INHERITED_CLASS_WITH_DELEGATE_CTOR = /^class\\s+[A-Za-z\\d$_]*\\s*extends\\s+[^{]+{[\\s\\S]*constructor\\s*\\(\\)\\s*{\\s*super\\(\\.\\.\\.arguments\\)/;\n/**\n * Determine whether a stringified type is a class which delegates its constructor\n * to its parent.\n *\n * This is not trivial since compiled code can actually contain a constructor function\n * even if the original source code did not. For instance, when the child class contains\n * an initialized instance property.\n */\nfunction isDelegateCtor(typeStr) {\n    return DELEGATE_CTOR.test(typeStr) || INHERITED_CLASS_WITH_DELEGATE_CTOR.test(typeStr) ||\n        (INHERITED_CLASS.test(typeStr) && !INHERITED_CLASS_WITH_CTOR.test(typeStr));\n}\nclass ReflectionCapabilities {\n    constructor(reflect) {\n        this._reflect = reflect || _global['Reflect'];\n    }\n    isReflectionEnabled() {\n        return true;\n    }\n    factory(t) {\n        return (...args) => new t(...args);\n    }\n    /** @internal */\n    _zipTypesAndAnnotations(paramTypes, paramAnnotations) {\n        let result;\n        if (typeof paramTypes === 'undefined') {\n            result = newArray(paramAnnotations.length);\n        }\n        else {\n            result = newArray(paramTypes.length);\n        }\n        for (let i = 0; i < result.length; i++) {\n            // TS outputs Object for parameters without types, while Traceur omits\n            // the annotations. For now we preserve the Traceur behavior to aid\n            // migration, but this can be revisited.\n            if (typeof paramTypes === 'undefined') {\n                result[i] = [];\n            }\n            else if (paramTypes[i] && paramTypes[i] != Object) {\n                result[i] = [paramTypes[i]];\n            }\n            else {\n                result[i] = [];\n            }\n            if (paramAnnotations && paramAnnotations[i] != null) {\n                result[i] = result[i].concat(paramAnnotations[i]);\n            }\n        }\n        return result;\n    }\n    _ownParameters(type, parentCtor) {\n        const typeStr = type.toString();\n        // If we have no decorators, we only have function.length as metadata.\n        // In that case, to detect whether a child class declared an own constructor or not,\n        // we need to look inside of that constructor to check whether it is\n        // just calling the parent.\n        // This also helps to work around for https://github.com/Microsoft/TypeScript/issues/12439\n        // that sets 'design:paramtypes' to []\n        // if a class inherits from another class but has no ctor declared itself.\n        if (isDelegateCtor(typeStr)) {\n            return null;\n        }\n        // Prefer the direct API.\n        if (type.parameters && type.parameters !== parentCtor.parameters) {\n            return type.parameters;\n        }\n        // API of tsickle for lowering decorators to properties on the class.\n        const tsickleCtorParams = type.ctorParameters;\n        if (tsickleCtorParams && tsickleCtorParams !== parentCtor.ctorParameters) {\n            // Newer tsickle uses a function closure\n            // Retain the non-function case for compatibility with older tsickle\n            const ctorParameters = typeof tsickleCtorParams === 'function' ? tsickleCtorParams() : tsickleCtorParams;\n            const paramTypes = ctorParameters.map((ctorParam) => ctorParam && ctorParam.type);\n            const paramAnnotations = ctorParameters.map((ctorParam) => ctorParam && convertTsickleDecoratorIntoMetadata(ctorParam.decorators));\n            return this._zipTypesAndAnnotations(paramTypes, paramAnnotations);\n        }\n        // API for metadata created by invoking the decorators.\n        const paramAnnotations = type.hasOwnProperty(PARAMETERS) && type[PARAMETERS];\n        const paramTypes = this._reflect && this._reflect.getOwnMetadata &&\n            this._reflect.getOwnMetadata('design:paramtypes', type);\n        if (paramTypes || paramAnnotations) {\n            return this._zipTypesAndAnnotations(paramTypes, paramAnnotations);\n        }\n        // If a class has no decorators, at least create metadata\n        // based on function.length.\n        // Note: We know that this is a real constructor as we checked\n        // the content of the constructor above.\n        return newArray(type.length);\n    }\n    parameters(type) {\n        // Note: only report metadata if we have at least one class decorator\n        // to stay in sync with the static reflector.\n        if (!isType(type)) {\n            return [];\n        }\n        const parentCtor = getParentCtor(type);\n        let parameters = this._ownParameters(type, parentCtor);\n        if (!parameters && parentCtor !== Object) {\n            parameters = this.parameters(parentCtor);\n        }\n        return parameters || [];\n    }\n    _ownAnnotations(typeOrFunc, parentCtor) {\n        // Prefer the direct API.\n        if (typeOrFunc.annotations && typeOrFunc.annotations !== parentCtor.annotations) {\n            let annotations = typeOrFunc.annotations;\n            if (typeof annotations === 'function' && annotations.annotations) {\n                annotations = annotations.annotations;\n            }\n            return annotations;\n        }\n        // API of tsickle for lowering decorators to properties on the class.\n        if (typeOrFunc.decorators && typeOrFunc.decorators !== parentCtor.decorators) {\n            return convertTsickleDecoratorIntoMetadata(typeOrFunc.decorators);\n        }\n        // API for metadata created by invoking the decorators.\n        if (typeOrFunc.hasOwnProperty(ANNOTATIONS)) {\n            return typeOrFunc[ANNOTATIONS];\n        }\n        return null;\n    }\n    annotations(typeOrFunc) {\n        if (!isType(typeOrFunc)) {\n            return [];\n        }\n        const parentCtor = getParentCtor(typeOrFunc);\n        const ownAnnotations = this._ownAnnotations(typeOrFunc, parentCtor) || [];\n        const parentAnnotations = parentCtor !== Object ? this.annotations(parentCtor) : [];\n        return parentAnnotations.concat(ownAnnotations);\n    }\n    _ownPropMetadata(typeOrFunc, parentCtor) {\n        // Prefer the direct API.\n        if (typeOrFunc.propMetadata &&\n            typeOrFunc.propMetadata !== parentCtor.propMetadata) {\n            let propMetadata = typeOrFunc.propMetadata;\n            if (typeof propMetadata === 'function' && propMetadata.propMetadata) {\n                propMetadata = propMetadata.propMetadata;\n            }\n            return propMetadata;\n        }\n        // API of tsickle for lowering decorators to properties on the class.\n        if (typeOrFunc.propDecorators &&\n            typeOrFunc.propDecorators !== parentCtor.propDecorators) {\n            const propDecorators = typeOrFunc.propDecorators;\n            const propMetadata = {};\n            Object.keys(propDecorators).forEach(prop => {\n                propMetadata[prop] = convertTsickleDecoratorIntoMetadata(propDecorators[prop]);\n            });\n            return propMetadata;\n        }\n        // API for metadata created by invoking the decorators.\n        if (typeOrFunc.hasOwnProperty(PROP_METADATA)) {\n            return typeOrFunc[PROP_METADATA];\n        }\n        return null;\n    }\n    propMetadata(typeOrFunc) {\n        if (!isType(typeOrFunc)) {\n            return {};\n        }\n        const parentCtor = getParentCtor(typeOrFunc);\n        const propMetadata = {};\n        if (parentCtor !== Object) {\n            const parentPropMetadata = this.propMetadata(parentCtor);\n            Object.keys(parentPropMetadata).forEach((propName) => {\n                propMetadata[propName] = parentPropMetadata[propName];\n            });\n        }\n        const ownPropMetadata = this._ownPropMetadata(typeOrFunc, parentCtor);\n        if (ownPropMetadata) {\n            Object.keys(ownPropMetadata).forEach((propName) => {\n                const decorators = [];\n                if (propMetadata.hasOwnProperty(propName)) {\n                    decorators.push(...propMetadata[propName]);\n                }\n                decorators.push(...ownPropMetadata[propName]);\n                propMetadata[propName] = decorators;\n            });\n        }\n        return propMetadata;\n    }\n    ownPropMetadata(typeOrFunc) {\n        if (!isType(typeOrFunc)) {\n            return {};\n        }\n        return this._ownPropMetadata(typeOrFunc, getParentCtor(typeOrFunc)) || {};\n    }\n    hasLifecycleHook(type, lcProperty) {\n        return type instanceof Type && lcProperty in type.prototype;\n    }\n    guards(type) {\n        return {};\n    }\n    getter(name) {\n        return new Function('o', 'return o.' + name + ';');\n    }\n    setter(name) {\n        return new Function('o', 'v', 'return o.' + name + ' = v;');\n    }\n    method(name) {\n        const functionBody = `if (!o.${name}) throw new Error('\"${name}\" is undefined');\n        return o.${name}.apply(o, args);`;\n        return new Function('o', 'args', functionBody);\n    }\n    // There is not a concept of import uri in Js, but this is useful in developing Dart applications.\n    importUri(type) {\n        // StaticSymbol\n        if (typeof type === 'object' && type['filePath']) {\n            return type['filePath'];\n        }\n        // Runtime type\n        return `./${stringify(type)}`;\n    }\n    resourceUri(type) {\n        return `./${stringify(type)}`;\n    }\n    resolveIdentifier(name, moduleUrl, members, runtime) {\n        return runtime;\n    }\n    resolveEnum(enumIdentifier, name) {\n        return enumIdentifier[name];\n    }\n}\nfunction convertTsickleDecoratorIntoMetadata(decoratorInvocations) {\n    if (!decoratorInvocations) {\n        return [];\n    }\n    return decoratorInvocations.map(decoratorInvocation => {\n        const decoratorType = decoratorInvocation.type;\n        const annotationCls = decoratorType.annotationCls;\n        const annotationArgs = decoratorInvocation.args ? decoratorInvocation.args : [];\n        return new annotationCls(...annotationArgs);\n    });\n}\nfunction getParentCtor(ctor) {\n    const parentProto = ctor.prototype ? Object.getPrototypeOf(ctor.prototype) : null;\n    const parentCtor = parentProto ? parentProto.constructor : null;\n    // Note: We always use `Object` as the null value\n    // to simplify checking later on.\n    return parentCtor || Object;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/jit/util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nlet _reflect = null;\n/**\n * @return {?}\n */\nfunction getReflect() {\n    return (_reflect = _reflect || new ReflectionCapabilities());\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction reflectDependencies(type) {\n    return convertDependencies(getReflect().parameters(type));\n}\n/**\n * @param {?} deps\n * @return {?}\n */\nfunction convertDependencies(deps) {\n    /** @type {?} */\n    const compiler = getCompilerFacade();\n    return deps.map((/**\n     * @param {?} dep\n     * @return {?}\n     */\n    dep => reflectDependency(compiler, dep)));\n}\n/**\n * @param {?} compiler\n * @param {?} dep\n * @return {?}\n */\nfunction reflectDependency(compiler, dep) {\n    /** @type {?} */\n    const meta = {\n        token: null,\n        host: false,\n        optional: false,\n        resolved: compiler.R3ResolvedDependencyType.Token,\n        self: false,\n        skipSelf: false,\n    };\n    /**\n     * @param {?} token\n     * @return {?}\n     */\n    function setTokenAndResolvedType(token) {\n        meta.resolved = compiler.R3ResolvedDependencyType.Token;\n        meta.token = token;\n    }\n    if (Array.isArray(dep) && dep.length > 0) {\n        for (let j = 0; j < dep.length; j++) {\n            /** @type {?} */\n            const param = dep[j];\n            if (param === undefined) {\n                // param may be undefined if type of dep is not set by ngtsc\n                continue;\n            }\n            /** @type {?} */\n            const proto = Object.getPrototypeOf(param);\n            if (param instanceof Optional || proto.ngMetadataName === 'Optional') {\n                meta.optional = true;\n            }\n            else if (param instanceof SkipSelf || proto.ngMetadataName === 'SkipSelf') {\n                meta.skipSelf = true;\n            }\n            else if (param instanceof Self || proto.ngMetadataName === 'Self') {\n                meta.self = true;\n            }\n            else if (param instanceof Host || proto.ngMetadataName === 'Host') {\n                meta.host = true;\n            }\n            else if (param instanceof Inject) {\n                meta.token = param.token;\n            }\n            else if (param instanceof Attribute) {\n                if (param.attributeName === undefined) {\n                    throw new Error(`Attribute name must be defined.`);\n                }\n                meta.token = param.attributeName;\n                meta.resolved = compiler.R3ResolvedDependencyType.Attribute;\n            }\n            else if (param === ChangeDetectorRef) {\n                meta.token = param;\n                meta.resolved = compiler.R3ResolvedDependencyType.ChangeDetectorRef;\n            }\n            else {\n                setTokenAndResolvedType(param);\n            }\n        }\n    }\n    else if (dep === undefined || (Array.isArray(dep) && dep.length === 0)) {\n        meta.token = undefined;\n        meta.resolved = R3ResolvedDependencyType.Invalid;\n    }\n    else {\n        setTokenAndResolvedType(dep);\n    }\n    return meta;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/jit/injectable.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Compile an Angular injectable according to its `Injectable` metadata, and patch the resulting\n * injectable def (`ɵprov`) onto the injectable type.\n * @param {?} type\n * @param {?=} srcMeta\n * @return {?}\n */\nfunction compileInjectable(type, srcMeta) {\n    /** @type {?} */\n    let ngInjectableDef = null;\n    /** @type {?} */\n    let ngFactoryDef = null;\n    // if NG_PROV_DEF is already defined on this class then don't overwrite it\n    if (!type.hasOwnProperty(NG_PROV_DEF)) {\n        Object.defineProperty(type, NG_PROV_DEF, {\n            get: (/**\n             * @return {?}\n             */\n            () => {\n                if (ngInjectableDef === null) {\n                    ngInjectableDef = getCompilerFacade().compileInjectable(angularCoreDiEnv, `ng:///${type.name}/ɵprov.js`, getInjectableMetadata(type, srcMeta));\n                }\n                return ngInjectableDef;\n            }),\n        });\n        // On IE10 properties defined via `defineProperty` won't be inherited by child classes,\n        // which will break inheriting the injectable definition from a grandparent through an\n        // undecorated parent class. We work around it by defining a method which should be used\n        // as a fallback. This should only be a problem in JIT mode, because in AOT TypeScript\n        // seems to have a workaround for static properties. When inheriting from an undecorated\n        // parent is no longer supported in v10, this can safely be removed.\n        if (!type.hasOwnProperty(NG_PROV_DEF_FALLBACK)) {\n            ((/** @type {?} */ (type)))[NG_PROV_DEF_FALLBACK] = (/**\n             * @return {?}\n             */\n            () => ((/** @type {?} */ (type)))[NG_PROV_DEF]);\n        }\n    }\n    // if NG_FACTORY_DEF is already defined on this class then don't overwrite it\n    if (!type.hasOwnProperty(NG_FACTORY_DEF)) {\n        Object.defineProperty(type, NG_FACTORY_DEF, {\n            get: (/**\n             * @return {?}\n             */\n            () => {\n                if (ngFactoryDef === null) {\n                    /** @type {?} */\n                    const metadata = getInjectableMetadata(type, srcMeta);\n                    /** @type {?} */\n                    const compiler = getCompilerFacade();\n                    ngFactoryDef = compiler.compileFactory(angularCoreDiEnv, `ng:///${type.name}/ɵfac.js`, {\n                        name: metadata.name,\n                        type: metadata.type,\n                        typeArgumentCount: metadata.typeArgumentCount,\n                        deps: reflectDependencies(type),\n                        injectFn: 'inject',\n                        target: compiler.R3FactoryTarget.Injectable\n                    });\n                }\n                return ngFactoryDef;\n            }),\n            // Leave this configurable so that the factories from directives or pipes can take precedence.\n            configurable: true\n        });\n    }\n}\nconst ɵ0$6 = getClosureSafeProperty;\n/** @type {?} */\nconst USE_VALUE$1 = getClosureSafeProperty({ provide: String, useValue: ɵ0$6 });\n/**\n * @param {?} meta\n * @return {?}\n */\nfunction isUseClassProvider(meta) {\n    return ((/** @type {?} */ (meta))).useClass !== undefined;\n}\n/**\n * @param {?} meta\n * @return {?}\n */\nfunction isUseValueProvider(meta) {\n    return USE_VALUE$1 in meta;\n}\n/**\n * @param {?} meta\n * @return {?}\n */\nfunction isUseFactoryProvider(meta) {\n    return ((/** @type {?} */ (meta))).useFactory !== undefined;\n}\n/**\n * @param {?} meta\n * @return {?}\n */\nfunction isUseExistingProvider(meta) {\n    return ((/** @type {?} */ (meta))).useExisting !== undefined;\n}\n/**\n * @param {?} type\n * @param {?=} srcMeta\n * @return {?}\n */\nfunction getInjectableMetadata(type, srcMeta) {\n    // Allow the compilation of a class with a `@Injectable()` decorator without parameters\n    /** @type {?} */\n    const meta = srcMeta || { providedIn: null };\n    /** @type {?} */\n    const compilerMeta = {\n        name: type.name,\n        type: type,\n        typeArgumentCount: 0,\n        providedIn: meta.providedIn,\n        userDeps: undefined,\n    };\n    if ((isUseClassProvider(meta) || isUseFactoryProvider(meta)) && meta.deps !== undefined) {\n        compilerMeta.userDeps = convertDependencies(meta.deps);\n    }\n    if (isUseClassProvider(meta)) {\n        // The user explicitly specified useClass, and may or may not have provided deps.\n        compilerMeta.useClass = resolveForwardRef(meta.useClass);\n    }\n    else if (isUseValueProvider(meta)) {\n        // The user explicitly specified useValue.\n        compilerMeta.useValue = resolveForwardRef(meta.useValue);\n    }\n    else if (isUseFactoryProvider(meta)) {\n        // The user explicitly specified useFactory.\n        compilerMeta.useFactory = meta.useFactory;\n    }\n    else if (isUseExistingProvider(meta)) {\n        // The user explicitly specified useExisting.\n        compilerMeta.useExisting = resolveForwardRef(meta.useExisting);\n    }\n    return compilerMeta;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nconst ɵ0$7 = getClosureSafeProperty;\n/** @type {?} */\nconst USE_VALUE$2 = getClosureSafeProperty({ provide: String, useValue: ɵ0$7 });\n/** @type {?} */\nconst EMPTY_ARRAY$1 = [];\n/**\n * @param {?} type\n * @param {?=} provider\n * @return {?}\n */\nfunction convertInjectableProviderToFactory(type, provider) {\n    if (!provider) {\n        /** @type {?} */\n        const reflectionCapabilities = new ReflectionCapabilities();\n        /** @type {?} */\n        const deps = reflectionCapabilities.parameters(type);\n        // TODO - convert to flags.\n        return (/**\n         * @return {?}\n         */\n        () => new type(...injectArgs((/** @type {?} */ (deps)))));\n    }\n    if (USE_VALUE$2 in provider) {\n        /** @type {?} */\n        const valueProvider = ((/** @type {?} */ (provider)));\n        return (/**\n         * @return {?}\n         */\n        () => valueProvider.useValue);\n    }\n    else if (((/** @type {?} */ (provider))).useExisting) {\n        /** @type {?} */\n        const existingProvider = ((/** @type {?} */ (provider)));\n        return (/**\n         * @return {?}\n         */\n        () => ɵɵinject(resolveForwardRef(existingProvider.useExisting)));\n    }\n    else if (((/** @type {?} */ (provider))).useFactory) {\n        /** @type {?} */\n        const factoryProvider = ((/** @type {?} */ (provider)));\n        return (/**\n         * @return {?}\n         */\n        () => factoryProvider.useFactory(...injectArgs(factoryProvider.deps || EMPTY_ARRAY$1)));\n    }\n    else if (((/** @type {?} */ (provider))).useClass) {\n        /** @type {?} */\n        const classProvider = ((/** @type {?} */ (provider)));\n        /** @type {?} */\n        let deps = ((/** @type {?} */ (provider))).deps;\n        if (!deps) {\n            /** @type {?} */\n            const reflectionCapabilities = new ReflectionCapabilities();\n            deps = reflectionCapabilities.parameters(type);\n        }\n        return (/**\n         * @return {?}\n         */\n        () => new (resolveForwardRef(classProvider.useClass))(...injectArgs(deps)));\n    }\n    else {\n        /** @type {?} */\n        let deps = ((/** @type {?} */ (provider))).deps;\n        if (!deps) {\n            /** @type {?} */\n            const reflectionCapabilities = new ReflectionCapabilities();\n            deps = reflectionCapabilities.parameters(type);\n        }\n        return (/**\n         * @return {?}\n         */\n        () => new type(...injectArgs((/** @type {?} */ (deps)))));\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/injectable.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Type of the Injectable decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction InjectableDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ0$8 = /**\n * @param {?} type\n * @param {?} meta\n * @return {?}\n */\n(type, meta) => SWITCH_COMPILE_INJECTABLE((/** @type {?} */ (type)), meta);\n/**\n * Injectable decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Injectable = makeDecorator('Injectable', undefined, undefined, undefined, (ɵ0$8));\n/**\n * Supports \\@Injectable() in JIT mode for Render2.\n * @param {?} injectableType\n * @param {?=} options\n * @return {?}\n */\nfunction render2CompileInjectable(injectableType, options) {\n    if (options && options.providedIn !== undefined && !getInjectableDef(injectableType)) {\n        ((/** @type {?} */ (injectableType))).ɵprov = ɵɵdefineInjectable({\n            token: injectableType,\n            providedIn: options.providedIn,\n            factory: convertInjectableProviderToFactory(injectableType, options),\n        });\n    }\n}\n/** @type {?} */\nconst SWITCH_COMPILE_INJECTABLE__POST_R3__ = compileInjectable;\n/** @type {?} */\nconst SWITCH_COMPILE_INJECTABLE__PRE_R3__ = render2CompileInjectable;\n/** @type {?} */\nconst SWITCH_COMPILE_INJECTABLE = SWITCH_COMPILE_INJECTABLE__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/scope.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An internal token whose presence in an injector indicates that the injector should treat itself\n * as a root scoped injector when processing requests for unknown tokens which may indicate\n * they are provided in the root scope.\n * @type {?}\n */\nconst INJECTOR_SCOPE = new InjectionToken('Set Injector scope.');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/r3_injector.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Marker which indicates that a value has not yet been created from the factory function.\n * @type {?}\n */\nconst NOT_YET = {};\n/**\n * Marker which indicates that the factory function for a token is in the process of being called.\n *\n * If the injector is asked to inject a token with its value set to CIRCULAR, that indicates\n * injection of a dependency has recursively attempted to inject the original token, and there is\n * a circular dependency among the providers.\n * @type {?}\n */\nconst CIRCULAR = {};\n/** @type {?} */\nconst EMPTY_ARRAY$2 = (/** @type {?} */ ([]));\n/**\n * A lazily initialized NullInjector.\n * @type {?}\n */\nlet NULL_INJECTOR = undefined;\n/**\n * @return {?}\n */\nfunction getNullInjector() {\n    if (NULL_INJECTOR === undefined) {\n        NULL_INJECTOR = new NullInjector();\n    }\n    return NULL_INJECTOR;\n}\n/**\n * An entry in the injector which tracks information about the given token, including a possible\n * current value.\n * @record\n * @template T\n */\nfunction Record() { }\nif (false) {\n    /** @type {?} */\n    Record.prototype.factory;\n    /** @type {?} */\n    Record.prototype.value;\n    /** @type {?} */\n    Record.prototype.multi;\n}\n/**\n * Create a new `Injector` which is configured using a `defType` of `InjectorType<any>`s.\n *\n * \\@publicApi\n * @param {?} defType\n * @param {?=} parent\n * @param {?=} additionalProviders\n * @param {?=} name\n * @return {?}\n */\nfunction createInjector(defType, parent = null, additionalProviders = null, name) {\n    /** @type {?} */\n    const injector = createInjectorWithoutInjectorInstances(defType, parent, additionalProviders, name);\n    injector._resolveInjectorDefTypes();\n    return injector;\n}\n/**\n * Creates a new injector without eagerly resolving its injector types. Can be used in places\n * where resolving the injector types immediately can lead to an infinite loop. The injector types\n * should be resolved at a later point by calling `_resolveInjectorDefTypes`.\n * @param {?} defType\n * @param {?=} parent\n * @param {?=} additionalProviders\n * @param {?=} name\n * @return {?}\n */\nfunction createInjectorWithoutInjectorInstances(defType, parent = null, additionalProviders = null, name) {\n    return new R3Injector(defType, additionalProviders, parent || getNullInjector(), name);\n}\nclass R3Injector {\n    /**\n     * @param {?} def\n     * @param {?} additionalProviders\n     * @param {?} parent\n     * @param {?=} source\n     */\n    constructor(def, additionalProviders, parent, source = null) {\n        this.parent = parent;\n        /**\n         * Map of tokens to records which contain the instances of those tokens.\n         * - `null` value implies that we don't have the record. Used by tree-shakable injectors\n         * to prevent further searches.\n         */\n        this.records = new Map();\n        /**\n         * The transitive set of `InjectorType`s which define this injector.\n         */\n        this.injectorDefTypes = new Set();\n        /**\n         * Set of values instantiated by this injector which contain `ngOnDestroy` lifecycle hooks.\n         */\n        this.onDestroy = new Set();\n        this._destroyed = false;\n        /** @type {?} */\n        const dedupStack = [];\n        // Start off by creating Records for every provider declared in every InjectorType\n        // included transitively in additional providers then do the same for `def`. This order is\n        // important because `def` may include providers that override ones in additionalProviders.\n        additionalProviders &&\n            deepForEach(additionalProviders, (/**\n             * @param {?} provider\n             * @return {?}\n             */\n            provider => this.processProvider(provider, def, additionalProviders)));\n        deepForEach([def], (/**\n         * @param {?} injectorDef\n         * @return {?}\n         */\n        injectorDef => this.processInjectorType(injectorDef, [], dedupStack)));\n        // Make sure the INJECTOR token provides this injector.\n        this.records.set(INJECTOR, makeRecord(undefined, this));\n        // Detect whether this injector has the APP_ROOT_SCOPE token and thus should provide\n        // any injectable scoped to APP_ROOT_SCOPE.\n        /** @type {?} */\n        const record = this.records.get(INJECTOR_SCOPE);\n        this.scope = record != null ? record.value : null;\n        // Source name, used for debugging\n        this.source = source || (typeof def === 'object' ? null : stringify(def));\n    }\n    /**\n     * Flag indicating that this injector was previously destroyed.\n     * @return {?}\n     */\n    get destroyed() {\n        return this._destroyed;\n    }\n    /**\n     * Destroy the injector and release references to every instance or provider associated with it.\n     *\n     * Also calls the `OnDestroy` lifecycle hooks of every instance that was created for which a\n     * hook was found.\n     * @return {?}\n     */\n    destroy() {\n        this.assertNotDestroyed();\n        // Set destroyed = true first, in case lifecycle hooks re-enter destroy().\n        this._destroyed = true;\n        try {\n            // Call all the lifecycle hooks.\n            this.onDestroy.forEach((/**\n             * @param {?} service\n             * @return {?}\n             */\n            service => service.ngOnDestroy()));\n        }\n        finally {\n            // Release all references.\n            this.records.clear();\n            this.onDestroy.clear();\n            this.injectorDefTypes.clear();\n        }\n    }\n    /**\n     * @template T\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @param {?=} flags\n     * @return {?}\n     */\n    get(token, notFoundValue = THROW_IF_NOT_FOUND, flags = InjectFlags.Default) {\n        this.assertNotDestroyed();\n        // Set the injection context.\n        /** @type {?} */\n        const previousInjector = setCurrentInjector(this);\n        try {\n            // Check for the SkipSelf flag.\n            if (!(flags & InjectFlags.SkipSelf)) {\n                // SkipSelf isn't set, check if the record belongs to this injector.\n                /** @type {?} */\n                let record = this.records.get(token);\n                if (record === undefined) {\n                    // No record, but maybe the token is scoped to this injector. Look for an injectable\n                    // def with a scope matching this injector.\n                    /** @type {?} */\n                    const def = couldBeInjectableType(token) && getInjectableDef(token);\n                    if (def && this.injectableDefInScope(def)) {\n                        // Found an injectable def and it's scoped to this injector. Pretend as if it was here\n                        // all along.\n                        record = makeRecord(injectableDefOrInjectorDefFactory(token), NOT_YET);\n                    }\n                    else {\n                        record = null;\n                    }\n                    this.records.set(token, record);\n                }\n                // If a record was found, get the instance for it and return it.\n                if (record != null /* NOT null || undefined */) {\n                    return this.hydrate(token, record);\n                }\n            }\n            // Select the next injector based on the Self flag - if self is set, the next injector is\n            // the NullInjector, otherwise it's the parent.\n            /** @type {?} */\n            const nextInjector = !(flags & InjectFlags.Self) ? this.parent : getNullInjector();\n            // Set the notFoundValue based on the Optional flag - if optional is set and notFoundValue\n            // is undefined, the value is null, otherwise it's the notFoundValue.\n            notFoundValue = (flags & InjectFlags.Optional) && notFoundValue === THROW_IF_NOT_FOUND ?\n                null :\n                notFoundValue;\n            return nextInjector.get(token, notFoundValue);\n        }\n        catch (e) {\n            if (e.name === 'NullInjectorError') {\n                /** @type {?} */\n                const path = e[NG_TEMP_TOKEN_PATH] = e[NG_TEMP_TOKEN_PATH] || [];\n                path.unshift(stringify(token));\n                if (previousInjector) {\n                    // We still have a parent injector, keep throwing\n                    throw e;\n                }\n                else {\n                    // Format & throw the final error message when we don't have any previous injector\n                    return catchInjectorError(e, token, 'R3InjectorError', this.source);\n                }\n            }\n            else {\n                throw e;\n            }\n        }\n        finally {\n            // Lastly, clean up the state by restoring the previous injector.\n            setCurrentInjector(previousInjector);\n        }\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _resolveInjectorDefTypes() {\n        this.injectorDefTypes.forEach((/**\n         * @param {?} defType\n         * @return {?}\n         */\n        defType => this.get(defType)));\n    }\n    /**\n     * @return {?}\n     */\n    toString() {\n        /** @type {?} */\n        const tokens = (/** @type {?} */ ([]));\n        /** @type {?} */\n        const records = this.records;\n        records.forEach((/**\n         * @param {?} v\n         * @param {?} token\n         * @return {?}\n         */\n        (v, token) => tokens.push(stringify(token))));\n        return `R3Injector[${tokens.join(', ')}]`;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    assertNotDestroyed() {\n        if (this._destroyed) {\n            throw new Error('Injector has already been destroyed.');\n        }\n    }\n    /**\n     * Add an `InjectorType` or `InjectorTypeWithProviders` and all of its transitive providers\n     * to this injector.\n     *\n     * If an `InjectorTypeWithProviders` that declares providers besides the type is specified,\n     * the function will return \"true\" to indicate that the providers of the type definition need\n     * to be processed. This allows us to process providers of injector types after all imports of\n     * an injector definition are processed. (following View Engine semantics: see FW-1349)\n     * @private\n     * @param {?} defOrWrappedDef\n     * @param {?} parents\n     * @param {?} dedupStack\n     * @return {?}\n     */\n    processInjectorType(defOrWrappedDef, parents, dedupStack) {\n        defOrWrappedDef = resolveForwardRef(defOrWrappedDef);\n        if (!defOrWrappedDef)\n            return false;\n        // Either the defOrWrappedDef is an InjectorType (with injector def) or an\n        // InjectorDefTypeWithProviders (aka ModuleWithProviders). Detecting either is a megamorphic\n        // read, so care is taken to only do the read once.\n        // First attempt to read the injector def (`ɵinj`).\n        /** @type {?} */\n        let def = getInjectorDef(defOrWrappedDef);\n        // If that's not present, then attempt to read ngModule from the InjectorDefTypeWithProviders.\n        /** @type {?} */\n        const ngModule = (def == null) && ((/** @type {?} */ (defOrWrappedDef))).ngModule || undefined;\n        // Determine the InjectorType. In the case where `defOrWrappedDef` is an `InjectorType`,\n        // then this is easy. In the case of an InjectorDefTypeWithProviders, then the definition type\n        // is the `ngModule`.\n        /** @type {?} */\n        const defType = (ngModule === undefined) ? ((/** @type {?} */ (defOrWrappedDef))) : ngModule;\n        // Check for circular dependencies.\n        if (ngDevMode && parents.indexOf(defType) !== -1) {\n            /** @type {?} */\n            const defName = stringify(defType);\n            throw new Error(`Circular dependency in DI detected for type ${defName}. Dependency path: ${parents.map((/**\n             * @param {?} defType\n             * @return {?}\n             */\n            defType => stringify(defType))).join(' > ')} > ${defName}.`);\n        }\n        // Check for multiple imports of the same module\n        /** @type {?} */\n        const isDuplicate = dedupStack.indexOf(defType) !== -1;\n        // Finally, if defOrWrappedType was an `InjectorDefTypeWithProviders`, then the actual\n        // `InjectorDef` is on its `ngModule`.\n        if (ngModule !== undefined) {\n            def = getInjectorDef(ngModule);\n        }\n        // If no definition was found, it might be from exports. Remove it.\n        if (def == null) {\n            return false;\n        }\n        // Add providers in the same way that @NgModule resolution did:\n        // First, include providers from any imports.\n        if (def.imports != null && !isDuplicate) {\n            // Before processing defType's imports, add it to the set of parents. This way, if it ends\n            // up deeply importing itself, this can be detected.\n            ngDevMode && parents.push(defType);\n            // Add it to the set of dedups. This way we can detect multiple imports of the same module\n            dedupStack.push(defType);\n            /** @type {?} */\n            let importTypesWithProviders;\n            try {\n                deepForEach(def.imports, (/**\n                 * @param {?} imported\n                 * @return {?}\n                 */\n                imported => {\n                    if (this.processInjectorType(imported, parents, dedupStack)) {\n                        if (importTypesWithProviders === undefined)\n                            importTypesWithProviders = [];\n                        // If the processed import is an injector type with providers, we store it in the\n                        // list of import types with providers, so that we can process those afterwards.\n                        importTypesWithProviders.push(imported);\n                    }\n                }));\n            }\n            finally {\n                // Remove it from the parents set when finished.\n                ngDevMode && parents.pop();\n            }\n            // Imports which are declared with providers (TypeWithProviders) need to be processed\n            // after all imported modules are processed. This is similar to how View Engine\n            // processes/merges module imports in the metadata resolver. See: FW-1349.\n            if (importTypesWithProviders !== undefined) {\n                for (let i = 0; i < importTypesWithProviders.length; i++) {\n                    const { ngModule, providers } = importTypesWithProviders[i];\n                    deepForEach((/** @type {?} */ (providers)), (/**\n                     * @param {?} provider\n                     * @return {?}\n                     */\n                    provider => this.processProvider(provider, ngModule, providers || EMPTY_ARRAY$2)));\n                }\n            }\n        }\n        // Track the InjectorType and add a provider for it. It's important that this is done after the\n        // def's imports.\n        this.injectorDefTypes.add(defType);\n        this.records.set(defType, makeRecord(def.factory, NOT_YET));\n        // Next, include providers listed on the definition itself.\n        /** @type {?} */\n        const defProviders = def.providers;\n        if (defProviders != null && !isDuplicate) {\n            /** @type {?} */\n            const injectorType = (/** @type {?} */ (defOrWrappedDef));\n            deepForEach(defProviders, (/**\n             * @param {?} provider\n             * @return {?}\n             */\n            provider => this.processProvider(provider, injectorType, defProviders)));\n        }\n        return (ngModule !== undefined &&\n            ((/** @type {?} */ (defOrWrappedDef))).providers !== undefined);\n    }\n    /**\n     * Process a `SingleProvider` and add it.\n     * @private\n     * @param {?} provider\n     * @param {?} ngModuleType\n     * @param {?} providers\n     * @return {?}\n     */\n    processProvider(provider, ngModuleType, providers) {\n        // Determine the token from the provider. Either it's its own token, or has a {provide: ...}\n        // property.\n        provider = resolveForwardRef(provider);\n        /** @type {?} */\n        let token = isTypeProvider(provider) ? provider : resolveForwardRef(provider && provider.provide);\n        // Construct a `Record` for the provider.\n        /** @type {?} */\n        const record = providerToRecord(provider, ngModuleType, providers);\n        if (!isTypeProvider(provider) && provider.multi === true) {\n            // If the provider indicates that it's a multi-provider, process it specially.\n            // First check whether it's been defined already.\n            /** @type {?} */\n            let multiRecord = this.records.get(token);\n            if (multiRecord) {\n                // It has. Throw a nice error if\n                if (multiRecord.multi === undefined) {\n                    throwMixedMultiProviderError();\n                }\n            }\n            else {\n                multiRecord = makeRecord(undefined, NOT_YET, true);\n                multiRecord.factory = (/**\n                 * @return {?}\n                 */\n                () => injectArgs((/** @type {?} */ ((/** @type {?} */ (multiRecord)).multi))));\n                this.records.set(token, multiRecord);\n            }\n            token = provider;\n            (/** @type {?} */ (multiRecord.multi)).push(provider);\n        }\n        else {\n            /** @type {?} */\n            const existing = this.records.get(token);\n            if (existing && existing.multi !== undefined) {\n                throwMixedMultiProviderError();\n            }\n        }\n        this.records.set(token, record);\n    }\n    /**\n     * @private\n     * @template T\n     * @param {?} token\n     * @param {?} record\n     * @return {?}\n     */\n    hydrate(token, record) {\n        if (record.value === CIRCULAR) {\n            throwCyclicDependencyError(stringify(token));\n        }\n        else if (record.value === NOT_YET) {\n            record.value = CIRCULAR;\n            record.value = (/** @type {?} */ (record.factory))();\n        }\n        if (typeof record.value === 'object' && record.value && hasOnDestroy(record.value)) {\n            this.onDestroy.add(record.value);\n        }\n        return (/** @type {?} */ (record.value));\n    }\n    /**\n     * @private\n     * @param {?} def\n     * @return {?}\n     */\n    injectableDefInScope(def) {\n        if (!def.providedIn) {\n            return false;\n        }\n        else if (typeof def.providedIn === 'string') {\n            return def.providedIn === 'any' || (def.providedIn === this.scope);\n        }\n        else {\n            return this.injectorDefTypes.has(def.providedIn);\n        }\n    }\n}\nif (false) {\n    /**\n     * Map of tokens to records which contain the instances of those tokens.\n     * - `null` value implies that we don't have the record. Used by tree-shakable injectors\n     * to prevent further searches.\n     * @type {?}\n     * @private\n     */\n    R3Injector.prototype.records;\n    /**\n     * The transitive set of `InjectorType`s which define this injector.\n     * @type {?}\n     * @private\n     */\n    R3Injector.prototype.injectorDefTypes;\n    /**\n     * Set of values instantiated by this injector which contain `ngOnDestroy` lifecycle hooks.\n     * @type {?}\n     * @private\n     */\n    R3Injector.prototype.onDestroy;\n    /**\n     * Flag indicating this injector provides the APP_ROOT_SCOPE token, and thus counts as the\n     * root scope.\n     * @type {?}\n     * @private\n     */\n    R3Injector.prototype.scope;\n    /** @type {?} */\n    R3Injector.prototype.source;\n    /**\n     * @type {?}\n     * @private\n     */\n    R3Injector.prototype._destroyed;\n    /** @type {?} */\n    R3Injector.prototype.parent;\n}\n/**\n * @param {?} token\n * @return {?}\n */\nfunction injectableDefOrInjectorDefFactory(token) {\n    // Most tokens will have an injectable def directly on them, which specifies a factory directly.\n    /** @type {?} */\n    const injectableDef = getInjectableDef(token);\n    /** @type {?} */\n    const factory = injectableDef !== null ? injectableDef.factory : getFactoryDef(token);\n    if (factory !== null) {\n        return factory;\n    }\n    // If the token is an NgModule, it's also injectable but the factory is on its injector def\n    // (`ɵinj`)\n    /** @type {?} */\n    const injectorDef = getInjectorDef(token);\n    if (injectorDef !== null) {\n        return injectorDef.factory;\n    }\n    // InjectionTokens should have an injectable def (ɵprov) and thus should be handled above.\n    // If it's missing that, it's an error.\n    if (token instanceof InjectionToken) {\n        throw new Error(`Token ${stringify(token)} is missing a ɵprov definition.`);\n    }\n    // Undecorated types can sometimes be created if they have no constructor arguments.\n    if (token instanceof Function) {\n        return getUndecoratedInjectableFactory(token);\n    }\n    // There was no way to resolve a factory for this token.\n    throw new Error('unreachable');\n}\n/**\n * @param {?} token\n * @return {?}\n */\nfunction getUndecoratedInjectableFactory(token) {\n    // If the token has parameters then it has dependencies that we cannot resolve implicitly.\n    /** @type {?} */\n    const paramLength = token.length;\n    if (paramLength > 0) {\n        /** @type {?} */\n        const args = newArray(paramLength, '?');\n        throw new Error(`Can't resolve all parameters for ${stringify(token)}: (${args.join(', ')}).`);\n    }\n    // The constructor function appears to have no parameters.\n    // This might be because it inherits from a super-class. In which case, use an injectable\n    // def from an ancestor if there is one.\n    // Otherwise this really is a simple class with no dependencies, so return a factory that\n    // just instantiates the zero-arg constructor.\n    /** @type {?} */\n    const inheritedInjectableDef = getInheritedInjectableDef(token);\n    if (inheritedInjectableDef !== null) {\n        return (/**\n         * @return {?}\n         */\n        () => inheritedInjectableDef.factory((/** @type {?} */ (token))));\n    }\n    else {\n        return (/**\n         * @return {?}\n         */\n        () => new ((/** @type {?} */ (token)))());\n    }\n}\n/**\n * @param {?} provider\n * @param {?} ngModuleType\n * @param {?} providers\n * @return {?}\n */\nfunction providerToRecord(provider, ngModuleType, providers) {\n    if (isValueProvider(provider)) {\n        return makeRecord(undefined, provider.useValue);\n    }\n    else {\n        /** @type {?} */\n        const factory = providerToFactory(provider, ngModuleType, providers);\n        return makeRecord(factory, NOT_YET);\n    }\n}\n/**\n * Converts a `SingleProvider` into a factory function.\n *\n * @param {?} provider provider to convert to factory\n * @param {?=} ngModuleType\n * @param {?=} providers\n * @return {?}\n */\nfunction providerToFactory(provider, ngModuleType, providers) {\n    /** @type {?} */\n    let factory = undefined;\n    if (isTypeProvider(provider)) {\n        /** @type {?} */\n        const unwrappedProvider = resolveForwardRef(provider);\n        return getFactoryDef(unwrappedProvider) || injectableDefOrInjectorDefFactory(unwrappedProvider);\n    }\n    else {\n        if (isValueProvider(provider)) {\n            factory = (/**\n             * @return {?}\n             */\n            () => resolveForwardRef(provider.useValue));\n        }\n        else if (isFactoryProvider(provider)) {\n            factory = (/**\n             * @return {?}\n             */\n            () => provider.useFactory(...injectArgs(provider.deps || [])));\n        }\n        else if (isExistingProvider(provider)) {\n            factory = (/**\n             * @return {?}\n             */\n            () => ɵɵinject(resolveForwardRef(provider.useExisting)));\n        }\n        else {\n            /** @type {?} */\n            const classRef = resolveForwardRef(provider &&\n                (((/** @type {?} */ (provider))).useClass || provider.provide));\n            if (!classRef) {\n                throwInvalidProviderError(ngModuleType, providers, provider);\n            }\n            if (hasDeps(provider)) {\n                factory = (/**\n                 * @return {?}\n                 */\n                () => new (classRef)(...injectArgs(provider.deps)));\n            }\n            else {\n                return getFactoryDef(classRef) || injectableDefOrInjectorDefFactory(classRef);\n            }\n        }\n    }\n    return factory;\n}\n/**\n * @template T\n * @param {?} factory\n * @param {?} value\n * @param {?=} multi\n * @return {?}\n */\nfunction makeRecord(factory, value, multi = false) {\n    return {\n        factory: factory,\n        value: value,\n        multi: multi ? [] : undefined,\n    };\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isValueProvider(value) {\n    return value !== null && typeof value == 'object' && USE_VALUE in value;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isExistingProvider(value) {\n    return !!(value && ((/** @type {?} */ (value))).useExisting);\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isFactoryProvider(value) {\n    return !!(value && ((/** @type {?} */ (value))).useFactory);\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isTypeProvider(value) {\n    return typeof value === 'function';\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isClassProvider(value) {\n    return !!((/** @type {?} */ (value))).useClass;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction hasDeps(value) {\n    return !!((/** @type {?} */ (value))).deps;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction hasOnDestroy(value) {\n    return value !== null && typeof value === 'object' &&\n        typeof ((/** @type {?} */ (value))).ngOnDestroy === 'function';\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction couldBeInjectableType(value) {\n    return (typeof value === 'function') ||\n        (typeof value === 'object' && value instanceof InjectionToken);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/injector.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} providers\n * @param {?} parent\n * @param {?} name\n * @return {?}\n */\nfunction INJECTOR_IMPL__PRE_R3__(providers, parent, name) {\n    return new StaticInjector(providers, parent, name);\n}\n/**\n * @param {?} providers\n * @param {?} parent\n * @param {?} name\n * @return {?}\n */\nfunction INJECTOR_IMPL__POST_R3__(providers, parent, name) {\n    return createInjector({ name: name }, parent, providers, name);\n}\n/** @type {?} */\nconst INJECTOR_IMPL = INJECTOR_IMPL__POST_R3__;\n/**\n * Concrete injectors implement this interface. Injectors are configured\n * with [providers](guide/glossary#provider) that associate\n * dependencies of various types with [injection tokens](guide/glossary#di-token).\n *\n * @see [\"DI Providers\"](guide/dependency-injection-providers).\n * @see `StaticProvider`\n *\n * \\@usageNotes\n *\n *  The following example creates a service injector instance.\n *\n * {\\@example core/di/ts/provider_spec.ts region='ConstructorProvider'}\n *\n * ### Usage example\n *\n * {\\@example core/di/ts/injector_spec.ts region='Injector'}\n *\n * `Injector` returns itself when given `Injector` as a token:\n *\n * {\\@example core/di/ts/injector_spec.ts region='injectInjector'}\n *\n * \\@publicApi\n * @abstract\n */\nclass Injector {\n    /**\n     * @param {?} options\n     * @param {?=} parent\n     * @return {?}\n     */\n    static create(options, parent) {\n        if (Array.isArray(options)) {\n            return INJECTOR_IMPL(options, parent, '');\n        }\n        else {\n            return INJECTOR_IMPL(options.providers, options.parent, options.name || '');\n        }\n    }\n}\nInjector.THROW_IF_NOT_FOUND = THROW_IF_NOT_FOUND;\nInjector.NULL = new NullInjector();\n/** @nocollapse */\nInjector.ɵprov = ɵɵdefineInjectable({\n    token: Injector,\n    providedIn: (/** @type {?} */ ('any')),\n    factory: (/**\n     * @return {?}\n     */\n    () => ɵɵinject(INJECTOR)),\n});\n/**\n * \\@internal\n * @nocollapse\n */\nInjector.__NG_ELEMENT_ID__ = -1;\nif (false) {\n    /** @type {?} */\n    Injector.THROW_IF_NOT_FOUND;\n    /** @type {?} */\n    Injector.NULL;\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    Injector.ɵprov;\n    /**\n     * \\@internal\n     * @nocollapse\n     * @type {?}\n     */\n    Injector.__NG_ELEMENT_ID__;\n    /**\n     * Retrieves an instance from the injector based on the provided token.\n     * @throws When the `notFoundValue` is `undefined` or `Injector.THROW_IF_NOT_FOUND`.\n     * @abstract\n     * @template T\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @param {?=} flags\n     * @return {?} The instance from the injector if defined, otherwise the `notFoundValue`.\n     */\n    Injector.prototype.get = function (token, notFoundValue, flags) { };\n    /**\n     * @deprecated from v4.0.0 use Type<T> or InjectionToken<T>\n     * @suppress {duplicate}\n     * @abstract\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @return {?}\n     */\n    Injector.prototype.get = function (token, notFoundValue) { };\n}\n/** @type {?} */\nconst IDENT = (/**\n * @template T\n * @param {?} value\n * @return {?}\n */\nfunction (value) {\n    return value;\n});\nconst ɵ0$9 = IDENT;\n/** @type {?} */\nconst EMPTY = (/** @type {?} */ ([]));\n/** @type {?} */\nconst CIRCULAR$1 = IDENT;\n/** @type {?} */\nconst MULTI_PROVIDER_FN = (/**\n * @return {?}\n */\nfunction () {\n    return Array.prototype.slice.call(arguments);\n});\nconst ɵ1$1 = MULTI_PROVIDER_FN;\n/** @enum {number} */\nconst OptionFlags = {\n    Optional: 1,\n    CheckSelf: 2,\n    CheckParent: 4,\n    Default: 6,\n};\n/** @type {?} */\nconst NO_NEW_LINE$1 = 'ɵ';\nclass StaticInjector {\n    /**\n     * @param {?} providers\n     * @param {?=} parent\n     * @param {?=} source\n     */\n    constructor(providers, parent = Injector.NULL, source = null) {\n        this.parent = parent;\n        this.source = source;\n        /** @type {?} */\n        const records = this._records = new Map();\n        records.set(Injector, (/** @type {?} */ ({ token: Injector, fn: IDENT, deps: EMPTY, value: this, useNew: false })));\n        records.set(INJECTOR, (/** @type {?} */ ({ token: INJECTOR, fn: IDENT, deps: EMPTY, value: this, useNew: false })));\n        this.scope = recursivelyProcessProviders(records, providers);\n    }\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @param {?=} flags\n     * @return {?}\n     */\n    get(token, notFoundValue, flags = InjectFlags.Default) {\n        /** @type {?} */\n        const records = this._records;\n        /** @type {?} */\n        let record = records.get(token);\n        if (record === undefined) {\n            // This means we have never seen this record, see if it is tree shakable provider.\n            /** @type {?} */\n            const injectableDef = getInjectableDef(token);\n            if (injectableDef) {\n                /** @type {?} */\n                const providedIn = injectableDef && injectableDef.providedIn;\n                if (providedIn === 'any' || providedIn != null && providedIn === this.scope) {\n                    records.set(token, record = resolveProvider({ provide: token, useFactory: injectableDef.factory, deps: EMPTY }));\n                }\n            }\n            if (record === undefined) {\n                // Set record to null to make sure that we don't go through expensive lookup above again.\n                records.set(token, null);\n            }\n        }\n        /** @type {?} */\n        let lastInjector = setCurrentInjector(this);\n        try {\n            return tryResolveToken(token, record, records, this.parent, notFoundValue, flags);\n        }\n        catch (e) {\n            return catchInjectorError(e, token, 'StaticInjectorError', this.source);\n        }\n        finally {\n            setCurrentInjector(lastInjector);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    toString() {\n        /** @type {?} */\n        const tokens = (/** @type {?} */ ([]));\n        /** @type {?} */\n        const records = this._records;\n        records.forEach((/**\n         * @param {?} v\n         * @param {?} token\n         * @return {?}\n         */\n        (v, token) => tokens.push(stringify(token))));\n        return `StaticInjector[${tokens.join(', ')}]`;\n    }\n}\nif (false) {\n    /** @type {?} */\n    StaticInjector.prototype.parent;\n    /** @type {?} */\n    StaticInjector.prototype.source;\n    /** @type {?} */\n    StaticInjector.prototype.scope;\n    /**\n     * @type {?}\n     * @private\n     */\n    StaticInjector.prototype._records;\n}\n/**\n * @record\n */\nfunction Record$1() { }\nif (false) {\n    /** @type {?} */\n    Record$1.prototype.fn;\n    /** @type {?} */\n    Record$1.prototype.useNew;\n    /** @type {?} */\n    Record$1.prototype.deps;\n    /** @type {?} */\n    Record$1.prototype.value;\n}\n/**\n * @record\n */\nfunction DependencyRecord() { }\nif (false) {\n    /** @type {?} */\n    DependencyRecord.prototype.token;\n    /** @type {?} */\n    DependencyRecord.prototype.options;\n}\n/**\n * @param {?} provider\n * @return {?}\n */\nfunction resolveProvider(provider) {\n    /** @type {?} */\n    const deps = computeDeps(provider);\n    /** @type {?} */\n    let fn = IDENT;\n    /** @type {?} */\n    let value = EMPTY;\n    /** @type {?} */\n    let useNew = false;\n    /** @type {?} */\n    let provide = resolveForwardRef(provider.provide);\n    if (USE_VALUE in provider) {\n        // We need to use USE_VALUE in provider since provider.useValue could be defined as undefined.\n        value = ((/** @type {?} */ (provider))).useValue;\n    }\n    else if (((/** @type {?} */ (provider))).useFactory) {\n        fn = ((/** @type {?} */ (provider))).useFactory;\n    }\n    else if (((/** @type {?} */ (provider))).useExisting) {\n        // Just use IDENT\n    }\n    else if (((/** @type {?} */ (provider))).useClass) {\n        useNew = true;\n        fn = resolveForwardRef(((/** @type {?} */ (provider))).useClass);\n    }\n    else if (typeof provide == 'function') {\n        useNew = true;\n        fn = provide;\n    }\n    else {\n        throw staticError('StaticProvider does not have [useValue|useFactory|useExisting|useClass] or [provide] is not newable', provider);\n    }\n    return { deps, fn, useNew, value };\n}\n/**\n * @param {?} token\n * @return {?}\n */\nfunction multiProviderMixError(token) {\n    return staticError('Cannot mix multi providers and regular providers', token);\n}\n/**\n * @param {?} records\n * @param {?} provider\n * @return {?}\n */\nfunction recursivelyProcessProviders(records, provider) {\n    /** @type {?} */\n    let scope = null;\n    if (provider) {\n        provider = resolveForwardRef(provider);\n        if (Array.isArray(provider)) {\n            // if we have an array recurse into the array\n            for (let i = 0; i < provider.length; i++) {\n                scope = recursivelyProcessProviders(records, provider[i]) || scope;\n            }\n        }\n        else if (typeof provider === 'function') {\n            // Functions were supported in ReflectiveInjector, but are not here. For safety give useful\n            // error messages\n            throw staticError('Function/Class not supported', provider);\n        }\n        else if (provider && typeof provider === 'object' && provider.provide) {\n            // At this point we have what looks like a provider: {provide: ?, ....}\n            /** @type {?} */\n            let token = resolveForwardRef(provider.provide);\n            /** @type {?} */\n            const resolvedProvider = resolveProvider(provider);\n            if (provider.multi === true) {\n                // This is a multi provider.\n                /** @type {?} */\n                let multiProvider = records.get(token);\n                if (multiProvider) {\n                    if (multiProvider.fn !== MULTI_PROVIDER_FN) {\n                        throw multiProviderMixError(token);\n                    }\n                }\n                else {\n                    // Create a placeholder factory which will look up the constituents of the multi provider.\n                    records.set(token, multiProvider = (/** @type {?} */ ({\n                        token: provider.provide,\n                        deps: [],\n                        useNew: false,\n                        fn: MULTI_PROVIDER_FN,\n                        value: EMPTY\n                    })));\n                }\n                // Treat the provider as the token.\n                token = provider;\n                multiProvider.deps.push({ token, options: 6 /* Default */ });\n            }\n            /** @type {?} */\n            const record = records.get(token);\n            if (record && record.fn == MULTI_PROVIDER_FN) {\n                throw multiProviderMixError(token);\n            }\n            if (token === INJECTOR_SCOPE) {\n                scope = resolvedProvider.value;\n            }\n            records.set(token, resolvedProvider);\n        }\n        else {\n            throw staticError('Unexpected provider', provider);\n        }\n    }\n    return scope;\n}\n/**\n * @param {?} token\n * @param {?} record\n * @param {?} records\n * @param {?} parent\n * @param {?} notFoundValue\n * @param {?} flags\n * @return {?}\n */\nfunction tryResolveToken(token, record, records, parent, notFoundValue, flags) {\n    try {\n        return resolveToken(token, record, records, parent, notFoundValue, flags);\n    }\n    catch (e) {\n        // ensure that 'e' is of type Error.\n        if (!(e instanceof Error)) {\n            e = new Error(e);\n        }\n        /** @type {?} */\n        const path = e[NG_TEMP_TOKEN_PATH] = e[NG_TEMP_TOKEN_PATH] || [];\n        path.unshift(token);\n        if (record && record.value == CIRCULAR$1) {\n            // Reset the Circular flag.\n            record.value = EMPTY;\n        }\n        throw e;\n    }\n}\n/**\n * @param {?} token\n * @param {?} record\n * @param {?} records\n * @param {?} parent\n * @param {?} notFoundValue\n * @param {?} flags\n * @return {?}\n */\nfunction resolveToken(token, record, records, parent, notFoundValue, flags) {\n    /** @type {?} */\n    let value;\n    if (record && !(flags & InjectFlags.SkipSelf)) {\n        // If we don't have a record, this implies that we don't own the provider hence don't know how\n        // to resolve it.\n        value = record.value;\n        if (value == CIRCULAR$1) {\n            throw Error(NO_NEW_LINE$1 + 'Circular dependency');\n        }\n        else if (value === EMPTY) {\n            record.value = CIRCULAR$1;\n            /** @type {?} */\n            let obj = undefined;\n            /** @type {?} */\n            let useNew = record.useNew;\n            /** @type {?} */\n            let fn = record.fn;\n            /** @type {?} */\n            let depRecords = record.deps;\n            /** @type {?} */\n            let deps = EMPTY;\n            if (depRecords.length) {\n                deps = [];\n                for (let i = 0; i < depRecords.length; i++) {\n                    /** @type {?} */\n                    const depRecord = depRecords[i];\n                    /** @type {?} */\n                    const options = depRecord.options;\n                    /** @type {?} */\n                    const childRecord = options & 2 /* CheckSelf */ ? records.get(depRecord.token) : undefined;\n                    deps.push(tryResolveToken(\n                    // Current Token to resolve\n                    depRecord.token, \n                    // A record which describes how to resolve the token.\n                    // If undefined, this means we don't have such a record\n                    childRecord, \n                    // Other records we know about.\n                    records, \n                    // If we don't know how to resolve dependency and we should not check parent for it,\n                    // than pass in Null injector.\n                    !childRecord && !(options & 4 /* CheckParent */) ? Injector.NULL : parent, options & 1 /* Optional */ ? null : Injector.THROW_IF_NOT_FOUND, InjectFlags.Default));\n                }\n            }\n            record.value = value = useNew ? new ((/** @type {?} */ (fn)))(...deps) : fn.apply(obj, deps);\n        }\n    }\n    else if (!(flags & InjectFlags.Self)) {\n        value = parent.get(token, notFoundValue, InjectFlags.Default);\n    }\n    else if (!(flags & InjectFlags.Optional)) {\n        value = Injector.NULL.get(token, notFoundValue);\n    }\n    else {\n        value = Injector.NULL.get(token, typeof notFoundValue !== 'undefined' ? notFoundValue : null);\n    }\n    return value;\n}\n/**\n * @param {?} provider\n * @return {?}\n */\nfunction computeDeps(provider) {\n    /** @type {?} */\n    let deps = EMPTY;\n    /** @type {?} */\n    const providerDeps = ((/** @type {?} */ (provider))).deps;\n    if (providerDeps && providerDeps.length) {\n        deps = [];\n        for (let i = 0; i < providerDeps.length; i++) {\n            /** @type {?} */\n            let options = 6 /* Default */;\n            /** @type {?} */\n            let token = resolveForwardRef(providerDeps[i]);\n            if (Array.isArray(token)) {\n                for (let j = 0, annotations = token; j < annotations.length; j++) {\n                    /** @type {?} */\n                    const annotation = annotations[j];\n                    if (annotation instanceof Optional || annotation == Optional) {\n                        options = options | 1 /* Optional */;\n                    }\n                    else if (annotation instanceof SkipSelf || annotation == SkipSelf) {\n                        options = options & ~2 /* CheckSelf */;\n                    }\n                    else if (annotation instanceof Self || annotation == Self) {\n                        options = options & ~4 /* CheckParent */;\n                    }\n                    else if (annotation instanceof Inject) {\n                        token = ((/** @type {?} */ (annotation))).token;\n                    }\n                    else {\n                        token = resolveForwardRef(annotation);\n                    }\n                }\n            }\n            deps.push({ token, options });\n        }\n    }\n    else if (((/** @type {?} */ (provider))).useExisting) {\n        /** @type {?} */\n        const token = resolveForwardRef(((/** @type {?} */ (provider))).useExisting);\n        deps = [{ token, options: 6 /* Default */ }];\n    }\n    else if (!providerDeps && !(USE_VALUE in provider)) {\n        // useValue & useExisting are the only ones which are exempt from deps all others need it.\n        throw staticError('\\'deps\\' required', provider);\n    }\n    return deps;\n}\n/**\n * @param {?} text\n * @param {?} obj\n * @return {?}\n */\nfunction staticError(text, obj) {\n    return new Error(formatError(text, obj, 'StaticInjectorError'));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/reflective_errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} keys\n * @return {?}\n */\nfunction findFirstClosedCycle(keys) {\n    /** @type {?} */\n    const res = [];\n    for (let i = 0; i < keys.length; ++i) {\n        if (res.indexOf(keys[i]) > -1) {\n            res.push(keys[i]);\n            return res;\n        }\n        res.push(keys[i]);\n    }\n    return res;\n}\n/**\n * @param {?} keys\n * @return {?}\n */\nfunction constructResolvingPath(keys) {\n    if (keys.length > 1) {\n        /** @type {?} */\n        const reversed = findFirstClosedCycle(keys.slice().reverse());\n        /** @type {?} */\n        const tokenStrs = reversed.map((/**\n         * @param {?} k\n         * @return {?}\n         */\n        k => stringify(k.token)));\n        return ' (' + tokenStrs.join(' -> ') + ')';\n    }\n    return '';\n}\n/**\n * @record\n */\nfunction InjectionError() { }\nif (false) {\n    /** @type {?} */\n    InjectionError.prototype.keys;\n    /** @type {?} */\n    InjectionError.prototype.injectors;\n    /** @type {?} */\n    InjectionError.prototype.constructResolvingMessage;\n    /**\n     * @param {?} injector\n     * @param {?} key\n     * @return {?}\n     */\n    InjectionError.prototype.addKey = function (injector, key) { };\n}\n/**\n * @param {?} injector\n * @param {?} key\n * @param {?} constructResolvingMessage\n * @param {?=} originalError\n * @return {?}\n */\nfunction injectionError(injector, key, constructResolvingMessage, originalError) {\n    /** @type {?} */\n    const keys = [key];\n    /** @type {?} */\n    const errMsg = constructResolvingMessage(keys);\n    /** @type {?} */\n    const error = (/** @type {?} */ ((originalError ? wrappedError(errMsg, originalError) : Error(errMsg))));\n    error.addKey = addKey;\n    error.keys = keys;\n    error.injectors = [injector];\n    error.constructResolvingMessage = constructResolvingMessage;\n    ((/** @type {?} */ (error)))[ERROR_ORIGINAL_ERROR] = originalError;\n    return error;\n}\n/**\n * @this {?}\n * @param {?} injector\n * @param {?} key\n * @return {?}\n */\nfunction addKey(injector, key) {\n    this.injectors.push(injector);\n    this.keys.push(key);\n    // Note: This updated message won't be reflected in the `.stack` property\n    this.message = this.constructResolvingMessage(this.keys);\n}\n/**\n * Thrown when trying to retrieve a dependency by key from {\\@link Injector}, but the\n * {\\@link Injector} does not have a {\\@link Provider} for the given key.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * class A {\n *   constructor(b:B) {}\n * }\n *\n * expect(() => Injector.resolveAndCreate([A])).toThrowError();\n * ```\n * @param {?} injector\n * @param {?} key\n * @return {?}\n */\nfunction noProviderError(injector, key) {\n    return injectionError(injector, key, (/**\n     * @param {?} keys\n     * @return {?}\n     */\n    function (keys) {\n        /** @type {?} */\n        const first = stringify(keys[0].token);\n        return `No provider for ${first}!${constructResolvingPath(keys)}`;\n    }));\n}\n/**\n * Thrown when dependencies form a cycle.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * var injector = Injector.resolveAndCreate([\n *   {provide: \"one\", useFactory: (two) => \"two\", deps: [[new Inject(\"two\")]]},\n *   {provide: \"two\", useFactory: (one) => \"one\", deps: [[new Inject(\"one\")]]}\n * ]);\n *\n * expect(() => injector.get(\"one\")).toThrowError();\n * ```\n *\n * Retrieving `A` or `B` throws a `CyclicDependencyError` as the graph above cannot be constructed.\n * @param {?} injector\n * @param {?} key\n * @return {?}\n */\nfunction cyclicDependencyError(injector, key) {\n    return injectionError(injector, key, (/**\n     * @param {?} keys\n     * @return {?}\n     */\n    function (keys) {\n        return `Cannot instantiate cyclic dependency!${constructResolvingPath(keys)}`;\n    }));\n}\n/**\n * Thrown when a constructing type returns with an Error.\n *\n * The `InstantiationError` class contains the original error plus the dependency graph which caused\n * this object to be instantiated.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * class A {\n *   constructor() {\n *     throw new Error('message');\n *   }\n * }\n *\n * var injector = Injector.resolveAndCreate([A]);\n * try {\n *   injector.get(A);\n * } catch (e) {\n *   expect(e instanceof InstantiationError).toBe(true);\n *   expect(e.originalException.message).toEqual(\"message\");\n *   expect(e.originalStack).toBeDefined();\n * }\n * ```\n * @param {?} injector\n * @param {?} originalException\n * @param {?} originalStack\n * @param {?} key\n * @return {?}\n */\nfunction instantiationError(injector, originalException, originalStack, key) {\n    return injectionError(injector, key, (/**\n     * @param {?} keys\n     * @return {?}\n     */\n    function (keys) {\n        /** @type {?} */\n        const first = stringify(keys[0].token);\n        return `${originalException.message}: Error during instantiation of ${first}!${constructResolvingPath(keys)}.`;\n    }), originalException);\n}\n/**\n * Thrown when an object other then {\\@link Provider} (or `Type`) is passed to {\\@link Injector}\n * creation.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * expect(() => Injector.resolveAndCreate([\"not a type\"])).toThrowError();\n * ```\n * @param {?} provider\n * @return {?}\n */\nfunction invalidProviderError(provider) {\n    return Error(`Invalid provider - only instances of Provider and Type are allowed, got: ${provider}`);\n}\n/**\n * Thrown when the class has no annotation information.\n *\n * Lack of annotation information prevents the {\\@link Injector} from determining which dependencies\n * need to be injected into the constructor.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * class A {\n *   constructor(b) {}\n * }\n *\n * expect(() => Injector.resolveAndCreate([A])).toThrowError();\n * ```\n *\n * This error is also thrown when the class not marked with {\\@link Injectable} has parameter types.\n *\n * ```typescript\n * class B {}\n *\n * class A {\n *   constructor(b:B) {} // no information about the parameter types of A is available at runtime.\n * }\n *\n * expect(() => Injector.resolveAndCreate([A,B])).toThrowError();\n * ```\n *\n * @param {?} typeOrFunc\n * @param {?} params\n * @return {?}\n */\nfunction noAnnotationError(typeOrFunc, params) {\n    /** @type {?} */\n    const signature = [];\n    for (let i = 0, ii = params.length; i < ii; i++) {\n        /** @type {?} */\n        const parameter = params[i];\n        if (!parameter || parameter.length == 0) {\n            signature.push('?');\n        }\n        else {\n            signature.push(parameter.map(stringify).join(' '));\n        }\n    }\n    return Error('Cannot resolve all parameters for \\'' + stringify(typeOrFunc) + '\\'(' +\n        signature.join(', ') + '). ' +\n        'Make sure that all the parameters are decorated with Inject or have valid type annotations and that \\'' +\n        stringify(typeOrFunc) + '\\' is decorated with Injectable.');\n}\n/**\n * Thrown when getting an object by index.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * class A {}\n *\n * var injector = Injector.resolveAndCreate([A]);\n *\n * expect(() => injector.getAt(100)).toThrowError();\n * ```\n *\n * @param {?} index\n * @return {?}\n */\nfunction outOfBoundsError(index) {\n    return Error(`Index ${index} is out-of-bounds.`);\n}\n// TODO: add a working example after alpha38 is released\n/**\n * Thrown when a multi provider and a regular provider are bound to the same token.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * expect(() => Injector.resolveAndCreate([\n *   { provide: \"Strings\", useValue: \"string1\", multi: true},\n *   { provide: \"Strings\", useValue: \"string2\", multi: false}\n * ])).toThrowError();\n * ```\n * @param {?} provider1\n * @param {?} provider2\n * @return {?}\n */\nfunction mixingMultiProvidersWithRegularProvidersError(provider1, provider2) {\n    return Error(`Cannot mix multi providers and regular providers, got: ${provider1} ${provider2}`);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/reflective_key.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A unique object used for retrieving items from the {\\@link ReflectiveInjector}.\n *\n * Keys have:\n * - a system-wide unique `id`.\n * - a `token`.\n *\n * `Key` is used internally by {\\@link ReflectiveInjector} because its system-wide unique `id` allows\n * the\n * injector to store created objects in a more efficient way.\n *\n * `Key` should not be created directly. {\\@link ReflectiveInjector} creates keys automatically when\n * resolving\n * providers.\n *\n * @deprecated No replacement\n * \\@publicApi\n */\nclass ReflectiveKey {\n    /**\n     * Private\n     * @param {?} token\n     * @param {?} id\n     */\n    constructor(token, id) {\n        this.token = token;\n        this.id = id;\n        if (!token) {\n            throw new Error('Token must be defined!');\n        }\n        this.displayName = stringify(this.token);\n    }\n    /**\n     * Retrieves a `Key` for a token.\n     * @param {?} token\n     * @return {?}\n     */\n    static get(token) {\n        return _globalKeyRegistry.get(resolveForwardRef(token));\n    }\n    /**\n     * @return {?} the number of keys registered in the system.\n     */\n    static get numberOfKeys() {\n        return _globalKeyRegistry.numberOfKeys;\n    }\n}\nif (false) {\n    /** @type {?} */\n    ReflectiveKey.prototype.displayName;\n    /** @type {?} */\n    ReflectiveKey.prototype.token;\n    /** @type {?} */\n    ReflectiveKey.prototype.id;\n}\nclass KeyRegistry {\n    constructor() {\n        this._allKeys = new Map();\n    }\n    /**\n     * @param {?} token\n     * @return {?}\n     */\n    get(token) {\n        if (token instanceof ReflectiveKey)\n            return token;\n        if (this._allKeys.has(token)) {\n            return (/** @type {?} */ (this._allKeys.get(token)));\n        }\n        /** @type {?} */\n        const newKey = new ReflectiveKey(token, ReflectiveKey.numberOfKeys);\n        this._allKeys.set(token, newKey);\n        return newKey;\n    }\n    /**\n     * @return {?}\n     */\n    get numberOfKeys() {\n        return this._allKeys.size;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    KeyRegistry.prototype._allKeys;\n}\n/** @type {?} */\nconst _globalKeyRegistry = new KeyRegistry();\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Provides access to reflection data about symbols. Used internally by Angular\n * to power dependency injection and compilation.\n */\nclass Reflector {\n    constructor(reflectionCapabilities) {\n        this.reflectionCapabilities = reflectionCapabilities;\n    }\n    updateCapabilities(caps) {\n        this.reflectionCapabilities = caps;\n    }\n    factory(type) {\n        return this.reflectionCapabilities.factory(type);\n    }\n    parameters(typeOrFunc) {\n        return this.reflectionCapabilities.parameters(typeOrFunc);\n    }\n    annotations(typeOrFunc) {\n        return this.reflectionCapabilities.annotations(typeOrFunc);\n    }\n    propMetadata(typeOrFunc) {\n        return this.reflectionCapabilities.propMetadata(typeOrFunc);\n    }\n    hasLifecycleHook(type, lcProperty) {\n        return this.reflectionCapabilities.hasLifecycleHook(type, lcProperty);\n    }\n    getter(name) {\n        return this.reflectionCapabilities.getter(name);\n    }\n    setter(name) {\n        return this.reflectionCapabilities.setter(name);\n    }\n    method(name) {\n        return this.reflectionCapabilities.method(name);\n    }\n    importUri(type) {\n        return this.reflectionCapabilities.importUri(type);\n    }\n    resourceUri(type) {\n        return this.reflectionCapabilities.resourceUri(type);\n    }\n    resolveIdentifier(name, moduleUrl, members, runtime) {\n        return this.reflectionCapabilities.resolveIdentifier(name, moduleUrl, members, runtime);\n    }\n    resolveEnum(identifier, name) {\n        return this.reflectionCapabilities.resolveEnum(identifier, name);\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * The {@link Reflector} used internally in Angular to access metadata\n * about symbols.\n */\nconst reflector = new Reflector(new ReflectionCapabilities());\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/reflective_provider.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction NormalizedProvider() { }\n/**\n * `Dependency` is used by the framework to extend DI.\n * This is internal to Angular and should not be used directly.\n */\nclass ReflectiveDependency {\n    /**\n     * @param {?} key\n     * @param {?} optional\n     * @param {?} visibility\n     */\n    constructor(key, optional, visibility) {\n        this.key = key;\n        this.optional = optional;\n        this.visibility = visibility;\n    }\n    /**\n     * @param {?} key\n     * @return {?}\n     */\n    static fromKey(key) {\n        return new ReflectiveDependency(key, false, null);\n    }\n}\nif (false) {\n    /** @type {?} */\n    ReflectiveDependency.prototype.key;\n    /** @type {?} */\n    ReflectiveDependency.prototype.optional;\n    /** @type {?} */\n    ReflectiveDependency.prototype.visibility;\n}\n/** @type {?} */\nconst _EMPTY_LIST = [];\n/**\n * An internal resolved representation of a `Provider` used by the `Injector`.\n *\n * \\@usageNotes\n * This is usually created automatically by `Injector.resolveAndCreate`.\n *\n * It can be created manually, as follows:\n *\n * ### Example\n *\n * ```typescript\n * var resolvedProviders = Injector.resolve([{ provide: 'message', useValue: 'Hello' }]);\n * var injector = Injector.fromResolvedProviders(resolvedProviders);\n *\n * expect(injector.get('message')).toEqual('Hello');\n * ```\n *\n * \\@publicApi\n * @record\n */\nfunction ResolvedReflectiveProvider() { }\nif (false) {\n    /**\n     * A key, usually a `Type<any>`.\n     * @type {?}\n     */\n    ResolvedReflectiveProvider.prototype.key;\n    /**\n     * Factory function which can return an instance of an object represented by a key.\n     * @type {?}\n     */\n    ResolvedReflectiveProvider.prototype.resolvedFactories;\n    /**\n     * Indicates if the provider is a multi-provider or a regular provider.\n     * @type {?}\n     */\n    ResolvedReflectiveProvider.prototype.multiProvider;\n}\nclass ResolvedReflectiveProvider_ {\n    /**\n     * @param {?} key\n     * @param {?} resolvedFactories\n     * @param {?} multiProvider\n     */\n    constructor(key, resolvedFactories, multiProvider) {\n        this.key = key;\n        this.resolvedFactories = resolvedFactories;\n        this.multiProvider = multiProvider;\n        this.resolvedFactory = this.resolvedFactories[0];\n    }\n}\nif (false) {\n    /** @type {?} */\n    ResolvedReflectiveProvider_.prototype.resolvedFactory;\n    /** @type {?} */\n    ResolvedReflectiveProvider_.prototype.key;\n    /** @type {?} */\n    ResolvedReflectiveProvider_.prototype.resolvedFactories;\n    /** @type {?} */\n    ResolvedReflectiveProvider_.prototype.multiProvider;\n}\n/**\n * An internal resolved representation of a factory function created by resolving `Provider`.\n * \\@publicApi\n */\nclass ResolvedReflectiveFactory {\n    /**\n     * @param {?} factory\n     * @param {?} dependencies\n     */\n    constructor(factory, dependencies) {\n        this.factory = factory;\n        this.dependencies = dependencies;\n    }\n}\nif (false) {\n    /**\n     * Factory function which can return an instance of an object represented by a key.\n     * @type {?}\n     */\n    ResolvedReflectiveFactory.prototype.factory;\n    /**\n     * Arguments (dependencies) to the `factory` function.\n     * @type {?}\n     */\n    ResolvedReflectiveFactory.prototype.dependencies;\n}\n/**\n * Resolve a single provider.\n * @param {?} provider\n * @return {?}\n */\nfunction resolveReflectiveFactory(provider) {\n    /** @type {?} */\n    let factoryFn;\n    /** @type {?} */\n    let resolvedDeps;\n    if (provider.useClass) {\n        /** @type {?} */\n        const useClass = resolveForwardRef(provider.useClass);\n        factoryFn = reflector.factory(useClass);\n        resolvedDeps = _dependenciesFor(useClass);\n    }\n    else if (provider.useExisting) {\n        factoryFn = (/**\n         * @param {?} aliasInstance\n         * @return {?}\n         */\n        (aliasInstance) => aliasInstance);\n        resolvedDeps = [ReflectiveDependency.fromKey(ReflectiveKey.get(provider.useExisting))];\n    }\n    else if (provider.useFactory) {\n        factoryFn = provider.useFactory;\n        resolvedDeps = constructDependencies(provider.useFactory, provider.deps);\n    }\n    else {\n        factoryFn = (/**\n         * @return {?}\n         */\n        () => provider.useValue);\n        resolvedDeps = _EMPTY_LIST;\n    }\n    return new ResolvedReflectiveFactory(factoryFn, resolvedDeps);\n}\n/**\n * Converts the `Provider` into `ResolvedProvider`.\n *\n * `Injector` internally only uses `ResolvedProvider`, `Provider` contains convenience provider\n * syntax.\n * @param {?} provider\n * @return {?}\n */\nfunction resolveReflectiveProvider(provider) {\n    return new ResolvedReflectiveProvider_(ReflectiveKey.get(provider.provide), [resolveReflectiveFactory(provider)], provider.multi || false);\n}\n/**\n * Resolve a list of Providers.\n * @param {?} providers\n * @return {?}\n */\nfunction resolveReflectiveProviders(providers) {\n    /** @type {?} */\n    const normalized = _normalizeProviders(providers, []);\n    /** @type {?} */\n    const resolved = normalized.map(resolveReflectiveProvider);\n    /** @type {?} */\n    const resolvedProviderMap = mergeResolvedReflectiveProviders(resolved, new Map());\n    return Array.from(resolvedProviderMap.values());\n}\n/**\n * Merges a list of ResolvedProviders into a list where each key is contained exactly once and\n * multi providers have been merged.\n * @param {?} providers\n * @param {?} normalizedProvidersMap\n * @return {?}\n */\nfunction mergeResolvedReflectiveProviders(providers, normalizedProvidersMap) {\n    for (let i = 0; i < providers.length; i++) {\n        /** @type {?} */\n        const provider = providers[i];\n        /** @type {?} */\n        const existing = normalizedProvidersMap.get(provider.key.id);\n        if (existing) {\n            if (provider.multiProvider !== existing.multiProvider) {\n                throw mixingMultiProvidersWithRegularProvidersError(existing, provider);\n            }\n            if (provider.multiProvider) {\n                for (let j = 0; j < provider.resolvedFactories.length; j++) {\n                    existing.resolvedFactories.push(provider.resolvedFactories[j]);\n                }\n            }\n            else {\n                normalizedProvidersMap.set(provider.key.id, provider);\n            }\n        }\n        else {\n            /** @type {?} */\n            let resolvedProvider;\n            if (provider.multiProvider) {\n                resolvedProvider = new ResolvedReflectiveProvider_(provider.key, provider.resolvedFactories.slice(), provider.multiProvider);\n            }\n            else {\n                resolvedProvider = provider;\n            }\n            normalizedProvidersMap.set(provider.key.id, resolvedProvider);\n        }\n    }\n    return normalizedProvidersMap;\n}\n/**\n * @param {?} providers\n * @param {?} res\n * @return {?}\n */\nfunction _normalizeProviders(providers, res) {\n    providers.forEach((/**\n     * @param {?} b\n     * @return {?}\n     */\n    b => {\n        if (b instanceof Type) {\n            res.push((/** @type {?} */ ({ provide: b, useClass: b })));\n        }\n        else if (b && typeof b == 'object' && ((/** @type {?} */ (b))).provide !== undefined) {\n            res.push((/** @type {?} */ (b)));\n        }\n        else if (Array.isArray(b)) {\n            _normalizeProviders(b, res);\n        }\n        else {\n            throw invalidProviderError(b);\n        }\n    }));\n    return res;\n}\n/**\n * @param {?} typeOrFunc\n * @param {?=} dependencies\n * @return {?}\n */\nfunction constructDependencies(typeOrFunc, dependencies) {\n    if (!dependencies) {\n        return _dependenciesFor(typeOrFunc);\n    }\n    else {\n        /** @type {?} */\n        const params = dependencies.map((/**\n         * @param {?} t\n         * @return {?}\n         */\n        t => [t]));\n        return dependencies.map((/**\n         * @param {?} t\n         * @return {?}\n         */\n        t => _extractToken(typeOrFunc, t, params)));\n    }\n}\n/**\n * @param {?} typeOrFunc\n * @return {?}\n */\nfunction _dependenciesFor(typeOrFunc) {\n    /** @type {?} */\n    const params = reflector.parameters(typeOrFunc);\n    if (!params)\n        return [];\n    if (params.some((/**\n     * @param {?} p\n     * @return {?}\n     */\n    p => p == null))) {\n        throw noAnnotationError(typeOrFunc, params);\n    }\n    return params.map((/**\n     * @param {?} p\n     * @return {?}\n     */\n    p => _extractToken(typeOrFunc, p, params)));\n}\n/**\n * @param {?} typeOrFunc\n * @param {?} metadata\n * @param {?} params\n * @return {?}\n */\nfunction _extractToken(typeOrFunc, metadata, params) {\n    /** @type {?} */\n    let token = null;\n    /** @type {?} */\n    let optional = false;\n    if (!Array.isArray(metadata)) {\n        if (metadata instanceof Inject) {\n            return _createDependency(metadata.token, optional, null);\n        }\n        else {\n            return _createDependency(metadata, optional, null);\n        }\n    }\n    /** @type {?} */\n    let visibility = null;\n    for (let i = 0; i < metadata.length; ++i) {\n        /** @type {?} */\n        const paramMetadata = metadata[i];\n        if (paramMetadata instanceof Type) {\n            token = paramMetadata;\n        }\n        else if (paramMetadata instanceof Inject) {\n            token = paramMetadata.token;\n        }\n        else if (paramMetadata instanceof Optional) {\n            optional = true;\n        }\n        else if (paramMetadata instanceof Self || paramMetadata instanceof SkipSelf) {\n            visibility = paramMetadata;\n        }\n        else if (paramMetadata instanceof InjectionToken) {\n            token = paramMetadata;\n        }\n    }\n    token = resolveForwardRef(token);\n    if (token != null) {\n        return _createDependency(token, optional, visibility);\n    }\n    else {\n        throw noAnnotationError(typeOrFunc, params);\n    }\n}\n/**\n * @param {?} token\n * @param {?} optional\n * @param {?} visibility\n * @return {?}\n */\nfunction _createDependency(token, optional, visibility) {\n    return new ReflectiveDependency(ReflectiveKey.get(token), optional, visibility);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/reflective_injector.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Threshold for the dynamic version\n/** @type {?} */\nconst UNDEFINED = {};\n/**\n * A ReflectiveDependency injection container used for instantiating objects and resolving\n * dependencies.\n *\n * An `Injector` is a replacement for a `new` operator, which can automatically resolve the\n * constructor dependencies.\n *\n * In typical use, application code asks for the dependencies in the constructor and they are\n * resolved by the `Injector`.\n *\n * \\@usageNotes\n * ### Example\n *\n * The following example creates an `Injector` configured to create `Engine` and `Car`.\n *\n * ```typescript\n * \\@Injectable()\n * class Engine {\n * }\n *\n * \\@Injectable()\n * class Car {\n *   constructor(public engine:Engine) {}\n * }\n *\n * var injector = ReflectiveInjector.resolveAndCreate([Car, Engine]);\n * var car = injector.get(Car);\n * expect(car instanceof Car).toBe(true);\n * expect(car.engine instanceof Engine).toBe(true);\n * ```\n *\n * Notice, we don't use the `new` operator because we explicitly want to have the `Injector`\n * resolve all of the object's dependencies automatically.\n *\n * @deprecated from v5 - slow and brings in a lot of code, Use `Injector.create` instead.\n * \\@publicApi\n * @abstract\n */\nclass ReflectiveInjector {\n    /**\n     * Turns an array of provider definitions into an array of resolved providers.\n     *\n     * A resolution is a process of flattening multiple nested arrays and converting individual\n     * providers into an array of `ResolvedReflectiveProvider`s.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * \\@Injectable()\n     * class Engine {\n     * }\n     *  /\n     * class Car {\n     *   constructor(public engine:Engine) {}\n     * }\n     *\n     * var providers = ReflectiveInjector.resolve([Car, [[Engine]]]);\n     *\n     * expect(providers.length).toEqual(2);\n     *\n     * expect(providers[0] instanceof ResolvedReflectiveProvider).toBe(true);\n     * expect(providers[0].key.displayName).toBe(\"Car\");\n     * expect(providers[0].dependencies.length).toEqual(1);\n     * expect(providers[0].factory).toBeDefined();\n     *\n     * expect(providers[1].key.displayName).toBe(\"Engine\");\n     * });\n     * ```\n     *\n     * @param {?} providers\n     * @return {?}\n     */\n    static resolve(providers) {\n        return resolveReflectiveProviders(providers);\n    }\n    /**\n     * Resolves an array of providers and creates an injector from those providers.\n     *\n     * The passed-in providers can be an array of `Type`, `Provider`,\n     * or a recursive array of more providers.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * \\@Injectable()\n     * class Engine {\n     * }\n     *  /\n     * class Car {\n     *   constructor(public engine:Engine) {}\n     * }\n     *\n     * var injector = ReflectiveInjector.resolveAndCreate([Car, Engine]);\n     * expect(injector.get(Car) instanceof Car).toBe(true);\n     * ```\n     * @param {?} providers\n     * @param {?=} parent\n     * @return {?}\n     */\n    static resolveAndCreate(providers, parent) {\n        /** @type {?} */\n        const ResolvedReflectiveProviders = ReflectiveInjector.resolve(providers);\n        return ReflectiveInjector.fromResolvedProviders(ResolvedReflectiveProviders, parent);\n    }\n    /**\n     * Creates an injector from previously resolved providers.\n     *\n     * This API is the recommended way to construct injectors in performance-sensitive parts.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * \\@Injectable()\n     * class Engine {\n     * }\n     *  /\n     * class Car {\n     *   constructor(public engine:Engine) {}\n     * }\n     *\n     * var providers = ReflectiveInjector.resolve([Car, Engine]);\n     * var injector = ReflectiveInjector.fromResolvedProviders(providers);\n     * expect(injector.get(Car) instanceof Car).toBe(true);\n     * ```\n     * @param {?} providers\n     * @param {?=} parent\n     * @return {?}\n     */\n    static fromResolvedProviders(providers, parent) {\n        return new ReflectiveInjector_(providers, parent);\n    }\n}\nif (false) {\n    /**\n     * Parent of this injector.\n     *\n     * <!-- TODO: Add a link to the section of the user guide talking about hierarchical injection.\n     * -->\n     * @abstract\n     * @return {?}\n     */\n    ReflectiveInjector.prototype.parent = function () { };\n    /**\n     * Resolves an array of providers and creates a child injector from those providers.\n     *\n     * <!-- TODO: Add a link to the section of the user guide talking about hierarchical injection.\n     * -->\n     *\n     * The passed-in providers can be an array of `Type`, `Provider`,\n     * or a recursive array of more providers.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * class ParentProvider {}\n     * class ChildProvider {}\n     *\n     * var parent = ReflectiveInjector.resolveAndCreate([ParentProvider]);\n     * var child = parent.resolveAndCreateChild([ChildProvider]);\n     *\n     * expect(child.get(ParentProvider) instanceof ParentProvider).toBe(true);\n     * expect(child.get(ChildProvider) instanceof ChildProvider).toBe(true);\n     * expect(child.get(ParentProvider)).toBe(parent.get(ParentProvider));\n     * ```\n     * @abstract\n     * @param {?} providers\n     * @return {?}\n     */\n    ReflectiveInjector.prototype.resolveAndCreateChild = function (providers) { };\n    /**\n     * Creates a child injector from previously resolved providers.\n     *\n     * <!-- TODO: Add a link to the section of the user guide talking about hierarchical injection.\n     * -->\n     *\n     * This API is the recommended way to construct injectors in performance-sensitive parts.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * class ParentProvider {}\n     * class ChildProvider {}\n     *\n     * var parentProviders = ReflectiveInjector.resolve([ParentProvider]);\n     * var childProviders = ReflectiveInjector.resolve([ChildProvider]);\n     *\n     * var parent = ReflectiveInjector.fromResolvedProviders(parentProviders);\n     * var child = parent.createChildFromResolved(childProviders);\n     *\n     * expect(child.get(ParentProvider) instanceof ParentProvider).toBe(true);\n     * expect(child.get(ChildProvider) instanceof ChildProvider).toBe(true);\n     * expect(child.get(ParentProvider)).toBe(parent.get(ParentProvider));\n     * ```\n     * @abstract\n     * @param {?} providers\n     * @return {?}\n     */\n    ReflectiveInjector.prototype.createChildFromResolved = function (providers) { };\n    /**\n     * Resolves a provider and instantiates an object in the context of the injector.\n     *\n     * The created object does not get cached by the injector.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * \\@Injectable()\n     * class Engine {\n     * }\n     *  /\n     * class Car {\n     *   constructor(public engine:Engine) {}\n     * }\n     *\n     * var injector = ReflectiveInjector.resolveAndCreate([Engine]);\n     *\n     * var car = injector.resolveAndInstantiate(Car);\n     * expect(car.engine).toBe(injector.get(Engine));\n     * expect(car).not.toBe(injector.resolveAndInstantiate(Car));\n     * ```\n     * @abstract\n     * @param {?} provider\n     * @return {?}\n     */\n    ReflectiveInjector.prototype.resolveAndInstantiate = function (provider) { };\n    /**\n     * Instantiates an object using a resolved provider in the context of the injector.\n     *\n     * The created object does not get cached by the injector.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * ```typescript\n     * \\@Injectable()\n     * class Engine {\n     * }\n     *  /\n     * class Car {\n     *   constructor(public engine:Engine) {}\n     * }\n     *\n     * var injector = ReflectiveInjector.resolveAndCreate([Engine]);\n     * var carProvider = ReflectiveInjector.resolve([Car])[0];\n     * var car = injector.instantiateResolved(carProvider);\n     * expect(car.engine).toBe(injector.get(Engine));\n     * expect(car).not.toBe(injector.instantiateResolved(carProvider));\n     * ```\n     * @abstract\n     * @param {?} provider\n     * @return {?}\n     */\n    ReflectiveInjector.prototype.instantiateResolved = function (provider) { };\n    /**\n     * @abstract\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @return {?}\n     */\n    ReflectiveInjector.prototype.get = function (token, notFoundValue) { };\n}\nclass ReflectiveInjector_ {\n    /**\n     * Private\n     * @param {?} _providers\n     * @param {?=} _parent\n     */\n    constructor(_providers, _parent) {\n        /**\n         * \\@internal\n         */\n        this._constructionCounter = 0;\n        this._providers = _providers;\n        this.parent = _parent || null;\n        /** @type {?} */\n        const len = _providers.length;\n        this.keyIds = [];\n        this.objs = [];\n        for (let i = 0; i < len; i++) {\n            this.keyIds[i] = _providers[i].key.id;\n            this.objs[i] = UNDEFINED;\n        }\n    }\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @return {?}\n     */\n    get(token, notFoundValue = THROW_IF_NOT_FOUND) {\n        return this._getByKey(ReflectiveKey.get(token), null, notFoundValue);\n    }\n    /**\n     * @param {?} providers\n     * @return {?}\n     */\n    resolveAndCreateChild(providers) {\n        /** @type {?} */\n        const ResolvedReflectiveProviders = ReflectiveInjector.resolve(providers);\n        return this.createChildFromResolved(ResolvedReflectiveProviders);\n    }\n    /**\n     * @param {?} providers\n     * @return {?}\n     */\n    createChildFromResolved(providers) {\n        /** @type {?} */\n        const inj = new ReflectiveInjector_(providers);\n        ((/** @type {?} */ (inj))).parent = this;\n        return inj;\n    }\n    /**\n     * @param {?} provider\n     * @return {?}\n     */\n    resolveAndInstantiate(provider) {\n        return this.instantiateResolved(ReflectiveInjector.resolve([provider])[0]);\n    }\n    /**\n     * @param {?} provider\n     * @return {?}\n     */\n    instantiateResolved(provider) {\n        return this._instantiateProvider(provider);\n    }\n    /**\n     * @param {?} index\n     * @return {?}\n     */\n    getProviderAtIndex(index) {\n        if (index < 0 || index >= this._providers.length) {\n            throw outOfBoundsError(index);\n        }\n        return this._providers[index];\n    }\n    /**\n     * \\@internal\n     * @param {?} provider\n     * @return {?}\n     */\n    _new(provider) {\n        if (this._constructionCounter++ > this._getMaxNumberOfObjects()) {\n            throw cyclicDependencyError(this, provider.key);\n        }\n        return this._instantiateProvider(provider);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _getMaxNumberOfObjects() {\n        return this.objs.length;\n    }\n    /**\n     * @private\n     * @param {?} provider\n     * @return {?}\n     */\n    _instantiateProvider(provider) {\n        if (provider.multiProvider) {\n            /** @type {?} */\n            const res = [];\n            for (let i = 0; i < provider.resolvedFactories.length; ++i) {\n                res[i] = this._instantiate(provider, provider.resolvedFactories[i]);\n            }\n            return res;\n        }\n        else {\n            return this._instantiate(provider, provider.resolvedFactories[0]);\n        }\n    }\n    /**\n     * @private\n     * @param {?} provider\n     * @param {?} ResolvedReflectiveFactory\n     * @return {?}\n     */\n    _instantiate(provider, ResolvedReflectiveFactory) {\n        /** @type {?} */\n        const factory = ResolvedReflectiveFactory.factory;\n        /** @type {?} */\n        let deps;\n        try {\n            deps =\n                ResolvedReflectiveFactory.dependencies.map((/**\n                 * @param {?} dep\n                 * @return {?}\n                 */\n                dep => this._getByReflectiveDependency(dep)));\n        }\n        catch (e) {\n            if (e.addKey) {\n                e.addKey(this, provider.key);\n            }\n            throw e;\n        }\n        /** @type {?} */\n        let obj;\n        try {\n            obj = factory(...deps);\n        }\n        catch (e) {\n            throw instantiationError(this, e, e.stack, provider.key);\n        }\n        return obj;\n    }\n    /**\n     * @private\n     * @param {?} dep\n     * @return {?}\n     */\n    _getByReflectiveDependency(dep) {\n        return this._getByKey(dep.key, dep.visibility, dep.optional ? null : THROW_IF_NOT_FOUND);\n    }\n    /**\n     * @private\n     * @param {?} key\n     * @param {?} visibility\n     * @param {?} notFoundValue\n     * @return {?}\n     */\n    _getByKey(key, visibility, notFoundValue) {\n        if (key === ReflectiveInjector_.INJECTOR_KEY) {\n            return this;\n        }\n        if (visibility instanceof Self) {\n            return this._getByKeySelf(key, notFoundValue);\n        }\n        else {\n            return this._getByKeyDefault(key, notFoundValue, visibility);\n        }\n    }\n    /**\n     * @private\n     * @param {?} keyId\n     * @return {?}\n     */\n    _getObjByKeyId(keyId) {\n        for (let i = 0; i < this.keyIds.length; i++) {\n            if (this.keyIds[i] === keyId) {\n                if (this.objs[i] === UNDEFINED) {\n                    this.objs[i] = this._new(this._providers[i]);\n                }\n                return this.objs[i];\n            }\n        }\n        return UNDEFINED;\n    }\n    /**\n     * \\@internal\n     * @param {?} key\n     * @param {?} notFoundValue\n     * @return {?}\n     */\n    _throwOrNull(key, notFoundValue) {\n        if (notFoundValue !== THROW_IF_NOT_FOUND) {\n            return notFoundValue;\n        }\n        else {\n            throw noProviderError(this, key);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} key\n     * @param {?} notFoundValue\n     * @return {?}\n     */\n    _getByKeySelf(key, notFoundValue) {\n        /** @type {?} */\n        const obj = this._getObjByKeyId(key.id);\n        return (obj !== UNDEFINED) ? obj : this._throwOrNull(key, notFoundValue);\n    }\n    /**\n     * \\@internal\n     * @param {?} key\n     * @param {?} notFoundValue\n     * @param {?} visibility\n     * @return {?}\n     */\n    _getByKeyDefault(key, notFoundValue, visibility) {\n        /** @type {?} */\n        let inj;\n        if (visibility instanceof SkipSelf) {\n            inj = this.parent;\n        }\n        else {\n            inj = this;\n        }\n        while (inj instanceof ReflectiveInjector_) {\n            /** @type {?} */\n            const inj_ = (/** @type {?} */ (inj));\n            /** @type {?} */\n            const obj = inj_._getObjByKeyId(key.id);\n            if (obj !== UNDEFINED)\n                return obj;\n            inj = inj_.parent;\n        }\n        if (inj !== null) {\n            return inj.get(key.token, notFoundValue);\n        }\n        else {\n            return this._throwOrNull(key, notFoundValue);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    get displayName() {\n        /** @type {?} */\n        const providers = _mapProviders(this, (/**\n         * @param {?} b\n         * @return {?}\n         */\n        (b) => ' \"' + b.key.displayName + '\" '))\n            .join(', ');\n        return `ReflectiveInjector(providers: [${providers}])`;\n    }\n    /**\n     * @return {?}\n     */\n    toString() {\n        return this.displayName;\n    }\n}\nReflectiveInjector_.INJECTOR_KEY = ReflectiveKey.get(Injector);\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ReflectiveInjector_.INJECTOR_KEY;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    ReflectiveInjector_.prototype._constructionCounter;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    ReflectiveInjector_.prototype._providers;\n    /** @type {?} */\n    ReflectiveInjector_.prototype.parent;\n    /** @type {?} */\n    ReflectiveInjector_.prototype.keyIds;\n    /** @type {?} */\n    ReflectiveInjector_.prototype.objs;\n}\n/**\n * @param {?} injector\n * @param {?} fn\n * @return {?}\n */\nfunction _mapProviders(injector, fn) {\n    /** @type {?} */\n    const res = [];\n    for (let i = 0; i < injector._providers.length; ++i) {\n        res[i] = fn(injector.getProviderAtIndex(i));\n    }\n    return res;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/di.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/metadata/di.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A DI token that you can use to create a virtual [provider](guide/glossary#provider)\n * that will populate the `entryComponents` field of components and NgModules\n * based on its `useValue` property value.\n * All components that are referenced in the `useValue` value (either directly\n * or in a nested array or map) are added to the `entryComponents` property.\n *\n * \\@usageNotes\n *\n * The following example shows how the router can populate the `entryComponents`\n * field of an NgModule based on a router configuration that refers\n * to components.\n *\n * ```typescript\n * // helper function inside the router\n * function provideRoutes(routes) {\n *   return [\n *     {provide: ROUTES, useValue: routes},\n *     {provide: ANALYZE_FOR_ENTRY_COMPONENTS, useValue: routes, multi: true}\n *   ];\n * }\n *\n * // user code\n * let routes = [\n *   {path: '/root', component: RootComp},\n *   {path: '/teams', component: TeamsComp}\n * ];\n *\n * \\@NgModule({\n *   providers: [provideRoutes(routes)]\n * })\n * class ModuleWithRoutes {}\n * ```\n *\n * \\@publicApi\n * @deprecated Since 9.0.0. With Ivy, this property is no longer necessary.\n * @type {?}\n */\nconst ANALYZE_FOR_ENTRY_COMPONENTS = new InjectionToken('AnalyzeForEntryComponents');\n/**\n * Type of the `Attribute` decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction AttributeDecorator$1() { }\n/**\n * Type of the Attribute metadata.\n *\n * \\@publicApi\n * @record\n */\nfunction Attribute$1() { }\nif (false) {\n    /**\n     * The name of the attribute to be injected into the constructor.\n     * @type {?|undefined}\n     */\n    Attribute$1.prototype.attributeName;\n}\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * Base class for query metadata.\n *\n * @see `ContentChildren`.\n * @see `ContentChild`.\n * @see `ViewChildren`.\n * @see `ViewChild`.\n *\n * \\@publicApi\n * @abstract\n */\nclass Query {\n}\n/**\n * Type of the ContentChildren decorator / constructor function.\n *\n * @see `ContentChildren`.\n * \\@publicApi\n * @record\n */\nfunction ContentChildrenDecorator() { }\nconst ɵ0$a = /**\n * @param {?=} selector\n * @param {?=} data\n * @return {?}\n */\n(selector, data = {}) => (Object.assign({ selector, first: false, isViewQuery: false, descendants: false }, data));\n/**\n * ContentChildren decorator and metadata.\n *\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst ContentChildren = makePropDecorator('ContentChildren', (ɵ0$a), Query);\n/**\n * Type of the ContentChild decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction ContentChildDecorator() { }\nconst ɵ1$2 = /**\n * @param {?=} selector\n * @param {?=} data\n * @return {?}\n */\n(selector, data = {}) => (Object.assign({ selector, first: true, isViewQuery: false, descendants: true }, data));\n/**\n * ContentChild decorator and metadata.\n *\n *\n * \\@Annotation\n *\n * \\@publicApi\n * @type {?}\n */\nconst ContentChild = makePropDecorator('ContentChild', (ɵ1$2), Query);\n/**\n * Type of the ViewChildren decorator / constructor function.\n *\n * @see `ViewChildren`.\n *\n * \\@publicApi\n * @record\n */\nfunction ViewChildrenDecorator() { }\nconst ɵ2 = /**\n * @param {?=} selector\n * @param {?=} data\n * @return {?}\n */\n(selector, data = {}) => (Object.assign({ selector, first: false, isViewQuery: true, descendants: true }, data));\n/**\n * ViewChildren decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst ViewChildren = makePropDecorator('ViewChildren', (ɵ2), Query);\n/**\n * Type of the ViewChild decorator / constructor function.\n *\n * @see `ViewChild`.\n * \\@publicApi\n * @record\n */\nfunction ViewChildDecorator() { }\nconst ɵ3 = /**\n * @param {?} selector\n * @param {?} data\n * @return {?}\n */\n(selector, data) => (Object.assign({ selector, first: true, isViewQuery: true, descendants: true }, data));\n/**\n * ViewChild decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst ViewChild = makePropDecorator('ViewChild', (ɵ3), Query);\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/metadata/resource_loading.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Used to resolve resource URLs on `\\@Component` when used with JIT compilation.\n *\n * Example:\n * ```\n * \\@Component({\n *   selector: 'my-comp',\n *   templateUrl: 'my-comp.html', // This requires asynchronous resolution\n * })\n * class MyComponent{\n * }\n *\n * // Calling `renderComponent` will fail because `renderComponent` is a synchronous process\n * // and `MyComponent`'s `\\@Component.templateUrl` needs to be resolved asynchronously.\n *\n * // Calling `resolveComponentResources()` will resolve `\\@Component.templateUrl` into\n * // `\\@Component.template`, which allows `renderComponent` to proceed in a synchronous manner.\n *\n * // Use browser's `fetch()` function as the default resource resolution strategy.\n * resolveComponentResources(fetch).then(() => {\n *   // After resolution all URLs have been converted into `template` strings.\n *   renderComponent(MyComponent);\n * });\n *\n * ```\n *\n * NOTE: In AOT the resolution happens during compilation, and so there should be no need\n * to call this method outside JIT mode.\n *\n * @param {?} resourceResolver a function which is responsible for returning a `Promise` to the\n * contents of the resolved URL. Browser's `fetch()` method is a good default implementation.\n * @return {?}\n */\nfunction resolveComponentResources(resourceResolver) {\n    // Store all promises which are fetching the resources.\n    /** @type {?} */\n    const componentResolved = [];\n    // Cache so that we don't fetch the same resource more than once.\n    /** @type {?} */\n    const urlMap = new Map();\n    /**\n     * @param {?} url\n     * @return {?}\n     */\n    function cachedResourceResolve(url) {\n        /** @type {?} */\n        let promise = urlMap.get(url);\n        if (!promise) {\n            /** @type {?} */\n            const resp = resourceResolver(url);\n            urlMap.set(url, promise = resp.then(unwrapResponse));\n        }\n        return promise;\n    }\n    componentResourceResolutionQueue.forEach((/**\n     * @param {?} component\n     * @param {?} type\n     * @return {?}\n     */\n    (component, type) => {\n        /** @type {?} */\n        const promises = [];\n        if (component.templateUrl) {\n            promises.push(cachedResourceResolve(component.templateUrl).then((/**\n             * @param {?} template\n             * @return {?}\n             */\n            (template) => {\n                component.template = template;\n            })));\n        }\n        /** @type {?} */\n        const styleUrls = component.styleUrls;\n        /** @type {?} */\n        const styles = component.styles || (component.styles = []);\n        /** @type {?} */\n        const styleOffset = component.styles.length;\n        styleUrls && styleUrls.forEach((/**\n         * @param {?} styleUrl\n         * @param {?} index\n         * @return {?}\n         */\n        (styleUrl, index) => {\n            styles.push(''); // pre-allocate array.\n            promises.push(cachedResourceResolve(styleUrl).then((/**\n             * @param {?} style\n             * @return {?}\n             */\n            (style) => {\n                styles[styleOffset + index] = style;\n                styleUrls.splice(styleUrls.indexOf(styleUrl), 1);\n                if (styleUrls.length == 0) {\n                    component.styleUrls = undefined;\n                }\n            })));\n        }));\n        /** @type {?} */\n        const fullyResolved = Promise.all(promises).then((/**\n         * @return {?}\n         */\n        () => componentDefResolved(type)));\n        componentResolved.push(fullyResolved);\n    }));\n    clearResolutionOfComponentResourcesQueue();\n    return Promise.all(componentResolved).then((/**\n     * @return {?}\n     */\n    () => undefined));\n}\n/** @type {?} */\nlet componentResourceResolutionQueue = new Map();\n// Track when existing ɵcmp for a Type is waiting on resources.\n/** @type {?} */\nconst componentDefPendingResolution = new Set();\n/**\n * @param {?} type\n * @param {?} metadata\n * @return {?}\n */\nfunction maybeQueueResolutionOfComponentResources(type, metadata) {\n    if (componentNeedsResolution(metadata)) {\n        componentResourceResolutionQueue.set(type, metadata);\n        componentDefPendingResolution.add(type);\n    }\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction isComponentDefPendingResolution(type) {\n    return componentDefPendingResolution.has(type);\n}\n/**\n * @param {?} component\n * @return {?}\n */\nfunction componentNeedsResolution(component) {\n    return !!((component.templateUrl && !component.hasOwnProperty('template')) ||\n        component.styleUrls && component.styleUrls.length);\n}\n/**\n * @return {?}\n */\nfunction clearResolutionOfComponentResourcesQueue() {\n    /** @type {?} */\n    const old = componentResourceResolutionQueue;\n    componentResourceResolutionQueue = new Map();\n    return old;\n}\n/**\n * @param {?} queue\n * @return {?}\n */\nfunction restoreComponentResolutionQueue(queue) {\n    componentDefPendingResolution.clear();\n    queue.forEach((/**\n     * @param {?} _\n     * @param {?} type\n     * @return {?}\n     */\n    (_, type) => componentDefPendingResolution.add(type)));\n    componentResourceResolutionQueue = queue;\n}\n/**\n * @return {?}\n */\nfunction isComponentResourceResolutionQueueEmpty() {\n    return componentResourceResolutionQueue.size === 0;\n}\n/**\n * @param {?} response\n * @return {?}\n */\nfunction unwrapResponse(response) {\n    return typeof response == 'string' ? response : response.text();\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction componentDefResolved(type) {\n    componentDefPendingResolution.delete(type);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/styling/static_styling.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Compute the static styling (class/style) from `TAttributes`.\n *\n * This function should be called during `firstCreatePass` only.\n *\n * @param {?} tNode The `TNode` into which the styling information should be loaded.\n * @param {?} attrs `TAttributes` containing the styling information.\n * @param {?} writeToHost Where should the resulting static styles be written?\n *   - `false` Write to `TNode.stylesWithoutHost` / `TNode.classesWithoutHost`\n *   - `true` Write to `TNode.styles` / `TNode.classes`\n * @return {?}\n */\nfunction computeStaticStyling(tNode, attrs, writeToHost) {\n    ngDevMode &&\n        assertFirstCreatePass(getTView(), 'Expecting to be called in first template pass only');\n    /** @type {?} */\n    let styles = writeToHost ? tNode.styles : null;\n    /** @type {?} */\n    let classes = writeToHost ? tNode.classes : null;\n    /** @type {?} */\n    let mode = 0;\n    if (attrs !== null) {\n        for (let i = 0; i < attrs.length; i++) {\n            /** @type {?} */\n            const value = attrs[i];\n            if (typeof value === 'number') {\n                mode = value;\n            }\n            else if (mode == 1 /* Classes */) {\n                classes = concatStringsWithSpace(classes, (/** @type {?} */ (value)));\n            }\n            else if (mode == 2 /* Styles */) {\n                /** @type {?} */\n                const style = (/** @type {?} */ (value));\n                /** @type {?} */\n                const styleValue = (/** @type {?} */ (attrs[++i]));\n                styles = concatStringsWithSpace(styles, style + ': ' + styleValue + ';');\n            }\n        }\n    }\n    writeToHost ? tNode.styles = styles : tNode.stylesWithoutHost = styles;\n    writeToHost ? tNode.classes = classes : tNode.classesWithoutHost = classes;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nlet _symbolIterator = null;\nfunction getSymbolIterator() {\n    if (!_symbolIterator) {\n        const Symbol = _global['Symbol'];\n        if (Symbol && Symbol.iterator) {\n            _symbolIterator = Symbol.iterator;\n        }\n        else {\n            // es6-shim specific logic\n            const keys = Object.getOwnPropertyNames(Map.prototype);\n            for (let i = 0; i < keys.length; ++i) {\n                const key = keys[i];\n                if (key !== 'entries' && key !== 'size' &&\n                    Map.prototype[key] === Map.prototype['entries']) {\n                    _symbolIterator = key;\n                }\n            }\n        }\n    }\n    return _symbolIterator;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction isIterable(obj) {\n    return obj !== null && typeof obj === 'object' && obj[getSymbolIterator()] !== undefined;\n}\nfunction isListLikeIterable(obj) {\n    if (!isJsObject(obj))\n        return false;\n    return Array.isArray(obj) ||\n        (!(obj instanceof Map) && // JS Map are iterables but return entries as [k, v]\n            getSymbolIterator() in obj); // JS Iterable have a Symbol.iterator prop\n}\nfunction areIterablesEqual(a, b, comparator) {\n    const iterator1 = a[getSymbolIterator()]();\n    const iterator2 = b[getSymbolIterator()]();\n    while (true) {\n        const item1 = iterator1.next();\n        const item2 = iterator2.next();\n        if (item1.done && item2.done)\n            return true;\n        if (item1.done || item2.done)\n            return false;\n        if (!comparator(item1.value, item2.value))\n            return false;\n    }\n}\nfunction iterateListLike(obj, fn) {\n    if (Array.isArray(obj)) {\n        for (let i = 0; i < obj.length; i++) {\n            fn(obj[i]);\n        }\n    }\n    else {\n        const iterator = obj[getSymbolIterator()]();\n        let item;\n        while (!((item = iterator.next()).done)) {\n            fn(item.value);\n        }\n    }\n}\nfunction isJsObject(o) {\n    return o !== null && (typeof o === 'function' || typeof o === 'object');\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// JS has NaN !== NaN\nfunction looseIdentical(a, b) {\n    return a === b || typeof a === 'number' && typeof b === 'number' && isNaN(a) && isNaN(b);\n}\nfunction devModeEqual(a, b) {\n    const isListLikeIterableA = isListLikeIterable(a);\n    const isListLikeIterableB = isListLikeIterable(b);\n    if (isListLikeIterableA && isListLikeIterableB) {\n        return areIterablesEqual(a, b, devModeEqual);\n    }\n    else {\n        const isAObject = a && (typeof a === 'object' || typeof a === 'function');\n        const isBObject = b && (typeof b === 'object' || typeof b === 'function');\n        if (!isListLikeIterableA && isAObject && !isListLikeIterableB && isBObject) {\n            return true;\n        }\n        else {\n            return looseIdentical(a, b);\n        }\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/change_detection_util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} a\n * @param {?} b\n * @return {?}\n */\nfunction devModeEqual$1(a, b) {\n    /** @type {?} */\n    const isListLikeIterableA = isListLikeIterable$1(a);\n    /** @type {?} */\n    const isListLikeIterableB = isListLikeIterable$1(b);\n    if (isListLikeIterableA && isListLikeIterableB) {\n        return areIterablesEqual$1(a, b, devModeEqual$1);\n    }\n    else {\n        /** @type {?} */\n        const isAObject = a && (typeof a === 'object' || typeof a === 'function');\n        /** @type {?} */\n        const isBObject = b && (typeof b === 'object' || typeof b === 'function');\n        if (!isListLikeIterableA && isAObject && !isListLikeIterableB && isBObject) {\n            return true;\n        }\n        else {\n            return looseIdentical(a, b);\n        }\n    }\n}\n/**\n * Indicates that the result of a {\\@link Pipe} transformation has changed even though the\n * reference has not changed.\n *\n * Wrapped values are unwrapped automatically during the change detection, and the unwrapped value\n * is stored.\n *\n * Example:\n *\n * ```\n * if (this._latestValue === this._latestReturnedValue) {\n *    return this._latestReturnedValue;\n *  } else {\n *    this._latestReturnedValue = this._latestValue;\n *    return WrappedValue.wrap(this._latestValue); // this will force update\n *  }\n * ```\n *\n * \\@publicApi\n */\nclass WrappedValue {\n    /**\n     * @param {?} value\n     */\n    constructor(value) {\n        this.wrapped = value;\n    }\n    /**\n     * Creates a wrapped value.\n     * @param {?} value\n     * @return {?}\n     */\n    static wrap(value) {\n        return new WrappedValue(value);\n    }\n    /**\n     * Returns the underlying value of a wrapped value.\n     * Returns the given `value` when it is not wrapped.\n     *\n     * @param {?} value\n     * @return {?}\n     */\n    static unwrap(value) {\n        return WrappedValue.isWrapped(value) ? value.wrapped : value;\n    }\n    /**\n     * Returns true if `value` is a wrapped value.\n     * @param {?} value\n     * @return {?}\n     */\n    static isWrapped(value) {\n        return value instanceof WrappedValue;\n    }\n}\nif (false) {\n    /**\n     * @deprecated from 5.3, use `unwrap()` instead - will switch to protected\n     * @type {?}\n     */\n    WrappedValue.prototype.wrapped;\n}\n/**\n * @param {?} obj\n * @return {?}\n */\nfunction isListLikeIterable$1(obj) {\n    if (!isJsObject$1(obj))\n        return false;\n    return Array.isArray(obj) ||\n        (!(obj instanceof Map) && // JS Map are iterables but return entries as [k, v]\n            getSymbolIterator() in obj); // JS Iterable have a Symbol.iterator prop\n}\n/**\n * @param {?} a\n * @param {?} b\n * @param {?} comparator\n * @return {?}\n */\nfunction areIterablesEqual$1(a, b, comparator) {\n    /** @type {?} */\n    const iterator1 = a[getSymbolIterator()]();\n    /** @type {?} */\n    const iterator2 = b[getSymbolIterator()]();\n    while (true) {\n        /** @type {?} */\n        const item1 = iterator1.next();\n        /** @type {?} */\n        const item2 = iterator2.next();\n        if (item1.done && item2.done)\n            return true;\n        if (item1.done || item2.done)\n            return false;\n        if (!comparator(item1.value, item2.value))\n            return false;\n    }\n}\n/**\n * @param {?} obj\n * @param {?} fn\n * @return {?}\n */\nfunction iterateListLike$1(obj, fn) {\n    if (Array.isArray(obj)) {\n        for (let i = 0; i < obj.length; i++) {\n            fn(obj[i]);\n        }\n    }\n    else {\n        /** @type {?} */\n        const iterator = obj[getSymbolIterator()]();\n        /** @type {?} */\n        let item;\n        while (!((item = iterator.next()).done)) {\n            fn(item.value);\n        }\n    }\n}\n/**\n * @param {?} o\n * @return {?}\n */\nfunction isJsObject$1(o) {\n    return o !== null && (typeof o === 'function' || typeof o === 'object');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/bindings.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// TODO(misko): consider inlining\n/**\n * Updates binding and returns the value.\n * @param {?} lView\n * @param {?} bindingIndex\n * @param {?} value\n * @return {?}\n */\nfunction updateBinding(lView, bindingIndex, value) {\n    return lView[bindingIndex] = value;\n}\n/**\n * Gets the current binding value.\n * @param {?} lView\n * @param {?} bindingIndex\n * @return {?}\n */\nfunction getBinding(lView, bindingIndex) {\n    ngDevMode && assertDataInRange(lView, bindingIndex);\n    ngDevMode &&\n        assertNotSame(lView[bindingIndex], NO_CHANGE, 'Stored value should never be NO_CHANGE.');\n    return lView[bindingIndex];\n}\n/**\n * Updates binding if changed, then returns whether it was updated.\n *\n * This function also checks the `CheckNoChangesMode` and throws if changes are made.\n * Some changes (Objects/iterables) during `CheckNoChangesMode` are exempt to comply with VE\n * behavior.\n *\n * @param {?} lView current `LView`\n * @param {?} bindingIndex The binding in the `LView` to check\n * @param {?} value New value to check against `lView[bindingIndex]`\n * @return {?} `true` if the bindings has changed. (Throws if binding has changed during\n *          `CheckNoChangesMode`)\n */\nfunction bindingUpdated(lView, bindingIndex, value) {\n    ngDevMode && assertNotSame(value, NO_CHANGE, 'Incoming value should never be NO_CHANGE.');\n    ngDevMode &&\n        assertLessThan(bindingIndex, lView.length, `Slot should have been initialized to NO_CHANGE`);\n    /** @type {?} */\n    const oldValue = lView[bindingIndex];\n    if (Object.is(oldValue, value)) {\n        return false;\n    }\n    else {\n        if (ngDevMode && getCheckNoChangesMode()) {\n            // View engine didn't report undefined values as changed on the first checkNoChanges pass\n            // (before the change detection was run).\n            /** @type {?} */\n            const oldValueToCompare = oldValue !== NO_CHANGE ? oldValue : undefined;\n            if (!devModeEqual$1(oldValueToCompare, value)) {\n                /** @type {?} */\n                const details = getExpressionChangedErrorDetails(lView, bindingIndex, oldValueToCompare, value);\n                throwErrorIfNoChangesMode(oldValue === NO_CHANGE, details.oldValue, details.newValue, details.propName);\n            }\n            // There was a change, but the `devModeEqual` decided that the change is exempt from an error.\n            // For this reason we exit as if no change. The early exit is needed to prevent the changed\n            // value to be written into `LView` (If we would write the new value that we would not see it\n            // as change on next CD.)\n            return false;\n        }\n        lView[bindingIndex] = value;\n        return true;\n    }\n}\n/**\n * Updates 2 bindings if changed, then returns whether either was updated.\n * @param {?} lView\n * @param {?} bindingIndex\n * @param {?} exp1\n * @param {?} exp2\n * @return {?}\n */\nfunction bindingUpdated2(lView, bindingIndex, exp1, exp2) {\n    /** @type {?} */\n    const different = bindingUpdated(lView, bindingIndex, exp1);\n    return bindingUpdated(lView, bindingIndex + 1, exp2) || different;\n}\n/**\n * Updates 3 bindings if changed, then returns whether any was updated.\n * @param {?} lView\n * @param {?} bindingIndex\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @return {?}\n */\nfunction bindingUpdated3(lView, bindingIndex, exp1, exp2, exp3) {\n    /** @type {?} */\n    const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);\n    return bindingUpdated(lView, bindingIndex + 2, exp3) || different;\n}\n/**\n * Updates 4 bindings if changed, then returns whether any was updated.\n * @param {?} lView\n * @param {?} bindingIndex\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?} exp4\n * @return {?}\n */\nfunction bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4) {\n    /** @type {?} */\n    const different = bindingUpdated2(lView, bindingIndex, exp1, exp2);\n    return bindingUpdated2(lView, bindingIndex + 2, exp3, exp4) || different;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/attribute.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Updates the value of or removes a bound attribute on an Element.\n *\n * Used in the case of `[attr.title]=\"value\"`\n *\n * \\@codeGenApi\n * @param {?} name name The name of the attribute.\n * @param {?} value value The attribute is removed when value is `null` or `undefined`.\n *                  Otherwise the attribute value is set to the stringified value.\n * @param {?=} sanitizer An optional function used to sanitize the value.\n * @param {?=} namespace Optional namespace to use when setting the attribute.\n *\n * @return {?}\n */\nfunction ɵɵattribute(name, value, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, name, value, sanitizer, namespace);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, 'attr.' + name, bindingIndex);\n    }\n    return ɵɵattribute;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/interpolation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Create interpolation bindings with a variable number of expressions.\n *\n * If there are 1 to 8 expressions `interpolation1()` to `interpolation8()` should be used instead.\n * Those are faster because there is no need to create an array of expressions and iterate over it.\n *\n * `values`:\n * - has static text at even indexes,\n * - has evaluated expressions at odd indexes.\n *\n * Returns the concatenated string when any of the arguments changes, `NO_CHANGE` otherwise.\n * @param {?} lView\n * @param {?} values\n * @return {?}\n */\nfunction interpolationV(lView, values) {\n    ngDevMode && assertLessThan(2, values.length, 'should have at least 3 values');\n    ngDevMode && assertEqual(values.length % 2, 1, 'should have an odd number of values');\n    /** @type {?} */\n    let isBindingUpdated = false;\n    /** @type {?} */\n    let bindingIndex = getBindingIndex();\n    for (let i = 1; i < values.length; i += 2) {\n        // Check if bindings (odd indexes) have changed\n        isBindingUpdated = bindingUpdated(lView, bindingIndex++, values[i]) || isBindingUpdated;\n    }\n    setBindingIndex(bindingIndex);\n    if (!isBindingUpdated) {\n        return NO_CHANGE;\n    }\n    // Build the updated content\n    /** @type {?} */\n    let content = values[0];\n    for (let i = 1; i < values.length; i += 2) {\n        content += renderStringify(values[i]) + values[i + 1];\n    }\n    return content;\n}\n/**\n * Creates an interpolation binding with 1 expression.\n *\n * @param {?} lView\n * @param {?} prefix static value used for concatenation only.\n * @param {?} v0 value checked for change.\n * @param {?} suffix static value used for concatenation only.\n * @return {?}\n */\nfunction interpolation1(lView, prefix, v0, suffix) {\n    /** @type {?} */\n    const different = bindingUpdated(lView, nextBindingIndex(), v0);\n    return different ? prefix + renderStringify(v0) + suffix : NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 2 expressions.\n * @param {?} lView\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} suffix\n * @return {?}\n */\nfunction interpolation2(lView, prefix, v0, i0, v1, suffix) {\n    /** @type {?} */\n    const bindingIndex = getBindingIndex();\n    /** @type {?} */\n    const different = bindingUpdated2(lView, bindingIndex, v0, v1);\n    incrementBindingIndex(2);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + suffix : NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 3 expressions.\n * @param {?} lView\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} suffix\n * @return {?}\n */\nfunction interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix) {\n    /** @type {?} */\n    const bindingIndex = getBindingIndex();\n    /** @type {?} */\n    const different = bindingUpdated3(lView, bindingIndex, v0, v1, v2);\n    incrementBindingIndex(3);\n    return different ?\n        prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + suffix :\n        NO_CHANGE;\n}\n/**\n * Create an interpolation binding with 4 expressions.\n * @param {?} lView\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} suffix\n * @return {?}\n */\nfunction interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    /** @type {?} */\n    const bindingIndex = getBindingIndex();\n    /** @type {?} */\n    const different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    incrementBindingIndex(4);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 5 expressions.\n * @param {?} lView\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} suffix\n * @return {?}\n */\nfunction interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    /** @type {?} */\n    const bindingIndex = getBindingIndex();\n    /** @type {?} */\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated(lView, bindingIndex + 4, v4) || different;\n    incrementBindingIndex(5);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + i3 + renderStringify(v4) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 6 expressions.\n * @param {?} lView\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} i4\n * @param {?} v5\n * @param {?} suffix\n * @return {?}\n */\nfunction interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    /** @type {?} */\n    const bindingIndex = getBindingIndex();\n    /** @type {?} */\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated2(lView, bindingIndex + 4, v4, v5) || different;\n    incrementBindingIndex(6);\n    return different ?\n        prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 + renderStringify(v2) + i2 +\n            renderStringify(v3) + i3 + renderStringify(v4) + i4 + renderStringify(v5) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 7 expressions.\n * @param {?} lView\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} i4\n * @param {?} v5\n * @param {?} i5\n * @param {?} v6\n * @param {?} suffix\n * @return {?}\n */\nfunction interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    /** @type {?} */\n    const bindingIndex = getBindingIndex();\n    /** @type {?} */\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated3(lView, bindingIndex + 4, v4, v5, v6) || different;\n    incrementBindingIndex(7);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + i3 + renderStringify(v4) + i4 +\n        renderStringify(v5) + i5 + renderStringify(v6) + suffix :\n        NO_CHANGE;\n}\n/**\n * Creates an interpolation binding with 8 expressions.\n * @param {?} lView\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} i4\n * @param {?} v5\n * @param {?} i5\n * @param {?} v6\n * @param {?} i6\n * @param {?} v7\n * @param {?} suffix\n * @return {?}\n */\nfunction interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    /** @type {?} */\n    const bindingIndex = getBindingIndex();\n    /** @type {?} */\n    let different = bindingUpdated4(lView, bindingIndex, v0, v1, v2, v3);\n    different = bindingUpdated4(lView, bindingIndex + 4, v4, v5, v6, v7) || different;\n    incrementBindingIndex(8);\n    return different ? prefix + renderStringify(v0) + i0 + renderStringify(v1) + i1 +\n        renderStringify(v2) + i2 + renderStringify(v3) + i3 + renderStringify(v4) + i4 +\n        renderStringify(v5) + i5 + renderStringify(v6) + i6 + renderStringify(v7) + suffix :\n        NO_CHANGE;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/attribute_interpolation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n *\n * Update an interpolated attribute on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate1('title', 'prefix', v0, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate1(attrName, prefix, v0, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 1, prefix, suffix);\n    }\n    return ɵɵattributeInterpolate1;\n}\n/**\n *\n * Update an interpolated attribute on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate2('title', 'prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate2(attrName, prefix, v0, i0, v1, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 2, prefix, i0, suffix);\n    }\n    return ɵɵattributeInterpolate2;\n}\n/**\n *\n * Update an interpolated attribute on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate3(\n * 'title', 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate3(attrName, prefix, v0, i0, v1, i1, v2, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 3, prefix, i0, i1, suffix);\n    }\n    return ɵɵattributeInterpolate3;\n}\n/**\n *\n * Update an interpolated attribute on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate4(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate4(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 4, prefix, i0, i1, i2, suffix);\n    }\n    return ɵɵattributeInterpolate4;\n}\n/**\n *\n * Update an interpolated attribute on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate5(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate5(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 5, prefix, i0, i1, i2, i3, suffix);\n    }\n    return ɵɵattributeInterpolate5;\n}\n/**\n *\n * Update an interpolated attribute on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate6(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate6(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 6, prefix, i0, i1, i2, i3, i4, suffix);\n    }\n    return ɵɵattributeInterpolate6;\n}\n/**\n *\n * Update an interpolated attribute on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate7(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate7(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 7, prefix, i0, i1, i2, i3, i4, i5, suffix);\n    }\n    return ɵɵattributeInterpolate7;\n}\n/**\n *\n * Update an interpolated attribute on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div attr.title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolate8(\n *  'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} i6 Static value used for concatenation only.\n * @param {?} v7 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolate8(attrName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolatedValue, sanitizer, namespace);\n        ngDevMode &&\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - 8, prefix, i0, i1, i2, i3, i4, i5, i6, suffix);\n    }\n    return ɵɵattributeInterpolate8;\n}\n/**\n * Update an interpolated attribute on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵattributeInterpolateV(\n *  'title', ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *\n * \\@codeGenApi\n * @param {?} attrName The name of the attribute to update.\n * @param {?} values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @param {?=} sanitizer An optional sanitizer function\n * @param {?=} namespace\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵattributeInterpolateV(attrName, values, sanitizer, namespace) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolationV(lView, values);\n    if (interpolated !== NO_CHANGE) {\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementAttributeInternal(tNode, lView, attrName, interpolated, sanitizer, namespace);\n        if (ngDevMode) {\n            /** @type {?} */\n            const interpolationInBetween = [values[0]];\n            for (let i = 2; i < values.length; i += 2) {\n                interpolationInBetween.push(values[i]);\n            }\n            storePropertyBindingMetadata(getTView().data, tNode, 'attr.' + attrName, getBindingIndex() - interpolationInBetween.length + 1, ...interpolationInBetween);\n        }\n    }\n    return ɵɵattributeInterpolateV;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/change_detection.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Synchronously perform change detection on a component (and possibly its sub-components).\n *\n * This function triggers change detection in a synchronous way on a component.\n *\n * @param {?} component The component which the change detection should be performed on.\n * @return {?}\n */\nfunction detectChanges(component) {\n    /** @type {?} */\n    const view = getComponentViewByInstance(component);\n    detectChangesInternal(view[TVIEW], view, component);\n}\n/**\n * Marks the component as dirty (needing change detection). Marking a component dirty will\n * schedule a change detection on it at some point in the future.\n *\n * Marking an already dirty component as dirty won't do anything. Only one outstanding change\n * detection can be scheduled per component tree.\n *\n * @param {?} component Component to mark as dirty.\n * @return {?}\n */\nfunction markDirty(component) {\n    ngDevMode && assertDefined(component, 'component');\n    /** @type {?} */\n    const rootView = (/** @type {?} */ (markViewDirty(getComponentViewByInstance(component))));\n    ngDevMode && assertDefined(rootView[CONTEXT], 'rootContext should be defined');\n    scheduleTick((/** @type {?} */ (rootView[CONTEXT])), 1 /* DetectChanges */);\n}\n/**\n * Used to perform change detection on the whole application.\n *\n * This is equivalent to `detectChanges`, but invoked on root component. Additionally, `tick`\n * executes lifecycle hooks and conditionally checks components based on their\n * `ChangeDetectionStrategy` and dirtiness.\n *\n * The preferred way to trigger change detection is to call `markDirty`. `markDirty` internally\n * schedules `tick` using a scheduler in order to coalesce multiple `markDirty` calls into a\n * single change detection run. By default, the scheduler is `requestAnimationFrame`, but can\n * be changed when calling `renderComponent` and providing the `scheduler` option.\n * @template T\n * @param {?} component\n * @return {?}\n */\nfunction tick(component) {\n    /** @type {?} */\n    const rootView = getRootView(component);\n    /** @type {?} */\n    const rootContext = (/** @type {?} */ (rootView[CONTEXT]));\n    tickRootContext(rootContext);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/template.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} index\n * @param {?} tView\n * @param {?} lView\n * @param {?} templateFn\n * @param {?} decls\n * @param {?} vars\n * @param {?=} tagName\n * @param {?=} attrsIndex\n * @param {?=} localRefsIndex\n * @return {?}\n */\nfunction templateFirstCreatePass(index, tView, lView, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode && ngDevMode.firstCreatePass++;\n    /** @type {?} */\n    const tViewConsts = tView.consts;\n    // TODO(pk): refactor getOrCreateTNode to have the \"create\" only version\n    /** @type {?} */\n    const tNode = getOrCreateTNode(tView, lView[T_HOST], index, 0 /* Container */, tagName || null, getConstant(tViewConsts, attrsIndex));\n    resolveDirectives(tView, lView, tNode, getConstant(tViewConsts, localRefsIndex));\n    registerPostOrderHooks(tView, tNode);\n    /** @type {?} */\n    const embeddedTView = tNode.tViews = createTView(2 /* Embedded */, -1, templateFn, decls, vars, tView.directiveRegistry, tView.pipeRegistry, null, tView.schemas, tViewConsts);\n    /** @type {?} */\n    const embeddedTViewNode = (/** @type {?} */ (createTNode(tView, null, 2 /* View */, -1, null, null)));\n    embeddedTViewNode.injectorIndex = tNode.injectorIndex;\n    embeddedTView.node = embeddedTViewNode;\n    if (tView.queries !== null) {\n        tView.queries.template(tView, tNode);\n        embeddedTView.queries = tView.queries.embeddedTView(tNode);\n    }\n    return tNode;\n}\n/**\n * Creates an LContainer for an ng-template (dynamically-inserted view), e.g.\n *\n * <ng-template #foo>\n *    <div></div>\n * </ng-template>\n *\n * \\@codeGenApi\n * @param {?} index The index of the container in the data array\n * @param {?} templateFn Inline template\n * @param {?} decls The number of nodes, local refs, and pipes for this template\n * @param {?} vars The number of bindings for this template\n * @param {?=} tagName The name of the container element, if applicable\n * @param {?=} attrsIndex Index of template attributes in the `consts` array.\n * @param {?=} localRefsIndex\n * @param {?=} localRefExtractor A function which extracts local-refs values from the template.\n *        Defaults to the current element associated with the local-ref.\n *\n * @return {?}\n */\nfunction ɵɵtemplate(index, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex, localRefExtractor) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const adjustedIndex = index + HEADER_OFFSET;\n    /** @type {?} */\n    const tNode = tView.firstCreatePass ?\n        templateFirstCreatePass(index, tView, lView, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex) :\n        (/** @type {?} */ (tView.data[adjustedIndex]));\n    setPreviousOrParentTNode(tNode, false);\n    /** @type {?} */\n    const comment = lView[RENDERER].createComment(ngDevMode ? 'container' : '');\n    appendChild(tView, lView, comment, tNode);\n    attachPatchData(comment, lView);\n    addToViewTree(lView, lView[adjustedIndex] = createLContainer(comment, lView, comment, tNode));\n    if (isDirectiveHost(tNode)) {\n        createDirectivesInstances(tView, lView, tNode);\n    }\n    if (localRefsIndex != null) {\n        saveResolvedLocalsInData(lView, tNode, localRefExtractor);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/storage.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Store a value in the `data` at a given `index`.\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} index\n * @param {?} value\n * @return {?}\n */\nfunction store(tView, lView, index, value) {\n    // We don't store any static data for local variables, so the first time\n    // we see the template, we should store as null to avoid a sparse array\n    /** @type {?} */\n    const adjustedIndex = index + HEADER_OFFSET;\n    if (adjustedIndex >= tView.data.length) {\n        tView.data[adjustedIndex] = null;\n        tView.blueprint[adjustedIndex] = null;\n    }\n    lView[adjustedIndex] = value;\n}\n/**\n * Retrieves a local reference from the current contextViewData.\n *\n * If the reference to retrieve is in a parent view, this instruction is used in conjunction\n * with a nextContext() call, which walks up the tree and updates the contextViewData instance.\n *\n * \\@codeGenApi\n * @template T\n * @param {?} index The index of the local ref in contextViewData.\n *\n * @return {?}\n */\nfunction ɵɵreference(index) {\n    /** @type {?} */\n    const contextLView = getContextLView();\n    return load(contextLView, index);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/di.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @template T\n * @param {?} token\n * @param {?=} flags\n * @return {?}\n */\nfunction ɵɵdirectiveInject(token, flags = InjectFlags.Default) {\n    /** @type {?} */\n    const lView = getLView();\n    // Fall back to inject() if view hasn't been created. This situation can happen in tests\n    // if inject utilities are used before bootstrapping.\n    if (lView == null)\n        return ɵɵinject(token, flags);\n    /** @type {?} */\n    const tNode = getPreviousOrParentTNode();\n    return getOrCreateInjectable((/** @type {?} */ (tNode)), lView, resolveForwardRef(token), flags);\n}\n/**\n * Facade for the attribute injection from DI.\n *\n * \\@codeGenApi\n * @param {?} attrNameToInject\n * @return {?}\n */\nfunction ɵɵinjectAttribute(attrNameToInject) {\n    return injectAttributeImpl(getPreviousOrParentTNode(), attrNameToInject);\n}\n/**\n * Throws an error indicating that a factory function could not be generated by the compiler for a\n * particular class.\n *\n * This instruction allows the actual error message to be optimized away when ngDevMode is turned\n * off, saving bytes of generated code while still providing a good experience in dev mode.\n *\n * The name of the class is not mentioned here, but will be in the generated factory function name\n * and thus in the stack trace.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵinvalidFactory() {\n    /** @type {?} */\n    const msg = ngDevMode ? `This constructor was not compatible with Dependency Injection.` : 'invalid';\n    throw new Error(msg);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/property.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Update a property on a selected element.\n *\n * Operates on the element selected by index via the {\\@link select} instruction.\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled\n *\n * \\@codeGenApi\n * @template T\n * @param {?} propName Name of property. Because it is going to DOM, this is not subject to\n *        renaming as part of minification.\n * @param {?} value New value to write.\n * @param {?=} sanitizer An optional function used to sanitize the value.\n * @return {?} This function returns itself so that it may be chained\n * (e.g. `property('name', ctx.name)('title', ctx.title)`)\n *\n */\nfunction ɵɵproperty(propName, value, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, value, lView[RENDERER], sanitizer, false);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, propName, bindingIndex);\n    }\n    return ɵɵproperty;\n}\n/**\n * Given `<div style=\"...\" my-dir>` and `MyDir` with `\\@Input('style')` we need to write to\n * directive input.\n * @param {?} tView\n * @param {?} tNode\n * @param {?} lView\n * @param {?} value\n * @param {?} isClassBased\n * @return {?}\n */\nfunction setDirectiveInputsWhichShadowsStyling(tView, tNode, lView, value, isClassBased) {\n    /** @type {?} */\n    const inputs = (/** @type {?} */ (tNode.inputs));\n    /** @type {?} */\n    const property = isClassBased ? 'class' : 'style';\n    // We support both 'class' and `className` hence the fallback.\n    setInputsForProperty(tView, lView, inputs[property], property, value);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/element.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} index\n * @param {?} tView\n * @param {?} lView\n * @param {?} native\n * @param {?} name\n * @param {?=} attrsIndex\n * @param {?=} localRefsIndex\n * @return {?}\n */\nfunction elementStartFirstCreatePass(index, tView, lView, native, name, attrsIndex, localRefsIndex) {\n    ngDevMode && assertFirstCreatePass(tView);\n    ngDevMode && ngDevMode.firstCreatePass++;\n    /** @type {?} */\n    const tViewConsts = tView.consts;\n    /** @type {?} */\n    const attrs = getConstant(tViewConsts, attrsIndex);\n    /** @type {?} */\n    const tNode = getOrCreateTNode(tView, lView[T_HOST], index, 3 /* Element */, name, attrs);\n    /** @type {?} */\n    const hasDirectives = resolveDirectives(tView, lView, tNode, getConstant(tViewConsts, localRefsIndex));\n    ngDevMode && warnAboutUnknownElement(tView, lView, native, tNode, hasDirectives);\n    if (tNode.attrs !== null) {\n        computeStaticStyling(tNode, tNode.attrs, false);\n    }\n    if (tNode.mergedAttrs !== null) {\n        computeStaticStyling(tNode, tNode.mergedAttrs, true);\n    }\n    if (tView.queries !== null) {\n        tView.queries.elementStart(tView, tNode);\n    }\n    return tNode;\n}\n/**\n * Create DOM element. The instruction must later be followed by `elementEnd()` call.\n *\n * \\@codeGenApi\n * @param {?} index Index of the element in the LView array\n * @param {?} name Name of the DOM Node\n * @param {?=} attrsIndex Index of the element's attributes in the `consts` array.\n * @param {?=} localRefsIndex Index of the element's local references in the `consts` array.\n *\n * Attributes and localRefs are passed as an array of strings where elements with an even index\n * hold an attribute name and elements with an odd index hold an attribute value, ex.:\n * ['id', 'warning5', 'class', 'alert']\n *\n * @return {?}\n */\nfunction ɵɵelementStart(index, name, attrsIndex, localRefsIndex) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const adjustedIndex = HEADER_OFFSET + index;\n    ngDevMode &&\n        assertEqual(getBindingIndex(), tView.bindingStartIndex, 'elements should be created before any bindings');\n    ngDevMode && ngDevMode.rendererCreateElement++;\n    ngDevMode && assertDataInRange(lView, adjustedIndex);\n    /** @type {?} */\n    const renderer = lView[RENDERER];\n    /** @type {?} */\n    const native = lView[adjustedIndex] = elementCreate(name, renderer, getNamespace());\n    /** @type {?} */\n    const tNode = tView.firstCreatePass ?\n        elementStartFirstCreatePass(index, tView, lView, native, name, attrsIndex, localRefsIndex) :\n        (/** @type {?} */ (tView.data[adjustedIndex]));\n    setPreviousOrParentTNode(tNode, true);\n    /** @type {?} */\n    const mergedAttrs = tNode.mergedAttrs;\n    if (mergedAttrs !== null) {\n        setUpAttributes(renderer, native, mergedAttrs);\n    }\n    /** @type {?} */\n    const classes = tNode.classes;\n    if (classes !== null) {\n        writeDirectClass(renderer, native, classes);\n    }\n    /** @type {?} */\n    const styles = tNode.styles;\n    if (styles !== null) {\n        writeDirectStyle(renderer, native, styles);\n    }\n    appendChild(tView, lView, native, tNode);\n    // any immediate children of a component or template container must be pre-emptively\n    // monkey-patched with the component view data so that the element can be inspected\n    // later on using any element discovery utility methods (see `element_discovery.ts`)\n    if (getElementDepthCount() === 0) {\n        attachPatchData(native, lView);\n    }\n    increaseElementDepthCount();\n    if (isDirectiveHost(tNode)) {\n        createDirectivesInstances(tView, lView, tNode);\n        executeContentQueries(tView, tNode, lView);\n    }\n    if (localRefsIndex !== null) {\n        saveResolvedLocalsInData(lView, tNode);\n    }\n}\n/**\n * Mark the end of the element.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵelementEnd() {\n    /** @type {?} */\n    let previousOrParentTNode = getPreviousOrParentTNode();\n    ngDevMode && assertDefined(previousOrParentTNode, 'No parent node to close.');\n    if (getIsParent()) {\n        setIsNotParent();\n    }\n    else {\n        ngDevMode && assertHasParent(getPreviousOrParentTNode());\n        previousOrParentTNode = (/** @type {?} */ (previousOrParentTNode.parent));\n        setPreviousOrParentTNode(previousOrParentTNode, false);\n    }\n    /** @type {?} */\n    const tNode = previousOrParentTNode;\n    ngDevMode && assertNodeType(tNode, 3 /* Element */);\n    decreaseElementDepthCount();\n    /** @type {?} */\n    const tView = getTView();\n    if (tView.firstCreatePass) {\n        registerPostOrderHooks(tView, previousOrParentTNode);\n        if (isContentQueryHost(previousOrParentTNode)) {\n            (/** @type {?} */ (tView.queries)).elementEnd(previousOrParentTNode);\n        }\n    }\n    if (tNode.classesWithoutHost != null && hasClassInput(tNode)) {\n        setDirectiveInputsWhichShadowsStyling(tView, tNode, getLView(), tNode.classesWithoutHost, true);\n    }\n    if (tNode.stylesWithoutHost != null && hasStyleInput(tNode)) {\n        setDirectiveInputsWhichShadowsStyling(tView, tNode, getLView(), tNode.stylesWithoutHost, false);\n    }\n}\n/**\n * Creates an empty element using {\\@link elementStart} and {\\@link elementEnd}\n *\n * \\@codeGenApi\n * @param {?} index Index of the element in the data array\n * @param {?} name Name of the DOM Node\n * @param {?=} attrsIndex Index of the element's attributes in the `consts` array.\n * @param {?=} localRefsIndex Index of the element's local references in the `consts` array.\n *\n * @return {?}\n */\nfunction ɵɵelement(index, name, attrsIndex, localRefsIndex) {\n    ɵɵelementStart(index, name, attrsIndex, localRefsIndex);\n    ɵɵelementEnd();\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} element\n * @param {?} tNode\n * @param {?} hasDirectives\n * @return {?}\n */\nfunction warnAboutUnknownElement(tView, lView, element, tNode, hasDirectives) {\n    /** @type {?} */\n    const schemas = tView.schemas;\n    // If `schemas` is set to `null`, that's an indication that this Component was compiled in AOT\n    // mode where this check happens at compile time. In JIT mode, `schemas` is always present and\n    // defined as an array (as an empty array in case `schemas` field is not defined) and we should\n    // execute the check below.\n    if (schemas === null)\n        return;\n    /** @type {?} */\n    const tagName = tNode.tagName;\n    // If the element matches any directive, it's considered as valid.\n    if (!hasDirectives && tagName !== null) {\n        // The element is unknown if it's an instance of HTMLUnknownElement or it isn't registered\n        // as a custom element. Note that unknown elements with a dash in their name won't be instances\n        // of HTMLUnknownElement in browsers that support web components.\n        /** @type {?} */\n        const isUnknown = \n        // Note that we can't check for `typeof HTMLUnknownElement === 'function'`,\n        // because while most browsers return 'function', IE returns 'object'.\n        (typeof HTMLUnknownElement !== 'undefined' && HTMLUnknownElement &&\n            element instanceof HTMLUnknownElement) ||\n            (typeof customElements !== 'undefined' && tagName.indexOf('-') > -1 &&\n                !customElements.get(tagName));\n        if (isUnknown && !matchingSchemas(tView, lView, tagName)) {\n            /** @type {?} */\n            let warning = `'${tagName}' is not a known element:\\n`;\n            warning += `1. If '${tagName}' is an Angular component, then verify that it is part of this module.\\n`;\n            if (tagName && tagName.indexOf('-') > -1) {\n                warning += `2. If '${tagName}' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.`;\n            }\n            else {\n                warning +=\n                    `2. To allow any element add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component.`;\n            }\n            console.warn(warning);\n        }\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/element_container.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} index\n * @param {?} tView\n * @param {?} lView\n * @param {?=} attrsIndex\n * @param {?=} localRefsIndex\n * @return {?}\n */\nfunction elementContainerStartFirstCreatePass(index, tView, lView, attrsIndex, localRefsIndex) {\n    ngDevMode && ngDevMode.firstCreatePass++;\n    /** @type {?} */\n    const tViewConsts = tView.consts;\n    /** @type {?} */\n    const attrs = getConstant(tViewConsts, attrsIndex);\n    /** @type {?} */\n    const tNode = getOrCreateTNode(tView, lView[T_HOST], index, 4 /* ElementContainer */, 'ng-container', attrs);\n    // While ng-container doesn't necessarily support styling, we use the style context to identify\n    // and execute directives on the ng-container.\n    if (attrs !== null) {\n        computeStaticStyling(tNode, attrs, true);\n    }\n    /** @type {?} */\n    const localRefs = getConstant(tViewConsts, localRefsIndex);\n    resolveDirectives(tView, lView, tNode, localRefs);\n    if (tView.queries !== null) {\n        tView.queries.elementStart(tView, tNode);\n    }\n    return tNode;\n}\n/**\n * Creates a logical container for other nodes (<ng-container>) backed by a comment node in the DOM.\n * The instruction must later be followed by `elementContainerEnd()` call.\n *\n * \\@codeGenApi\n * @param {?} index Index of the element in the LView array\n * @param {?=} attrsIndex Index of the container attributes in the `consts` array.\n * @param {?=} localRefsIndex Index of the container's local references in the `consts` array.\n *\n * Even if this instruction accepts a set of attributes no actual attribute values are propagated to\n * the DOM (as a comment node can't have attributes). Attributes are here only for directive\n * matching purposes and setting initial inputs of directives.\n *\n * @return {?}\n */\nfunction ɵɵelementContainerStart(index, attrsIndex, localRefsIndex) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const adjustedIndex = index + HEADER_OFFSET;\n    ngDevMode && assertDataInRange(lView, adjustedIndex);\n    ngDevMode &&\n        assertEqual(getBindingIndex(), tView.bindingStartIndex, 'element containers should be created before any bindings');\n    /** @type {?} */\n    const tNode = tView.firstCreatePass ?\n        elementContainerStartFirstCreatePass(index, tView, lView, attrsIndex, localRefsIndex) :\n        (/** @type {?} */ (tView.data[adjustedIndex]));\n    setPreviousOrParentTNode(tNode, true);\n    ngDevMode && ngDevMode.rendererCreateComment++;\n    /** @type {?} */\n    const native = lView[adjustedIndex] =\n        lView[RENDERER].createComment(ngDevMode ? 'ng-container' : '');\n    appendChild(tView, lView, native, tNode);\n    attachPatchData(native, lView);\n    if (isDirectiveHost(tNode)) {\n        createDirectivesInstances(tView, lView, tNode);\n        executeContentQueries(tView, tNode, lView);\n    }\n    if (localRefsIndex != null) {\n        saveResolvedLocalsInData(lView, tNode);\n    }\n}\n/**\n * Mark the end of the <ng-container>.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵelementContainerEnd() {\n    /** @type {?} */\n    let previousOrParentTNode = getPreviousOrParentTNode();\n    /** @type {?} */\n    const tView = getTView();\n    if (getIsParent()) {\n        setIsNotParent();\n    }\n    else {\n        ngDevMode && assertHasParent(previousOrParentTNode);\n        previousOrParentTNode = (/** @type {?} */ (previousOrParentTNode.parent));\n        setPreviousOrParentTNode(previousOrParentTNode, false);\n    }\n    ngDevMode && assertNodeType(previousOrParentTNode, 4 /* ElementContainer */);\n    if (tView.firstCreatePass) {\n        registerPostOrderHooks(tView, previousOrParentTNode);\n        if (isContentQueryHost(previousOrParentTNode)) {\n            (/** @type {?} */ (tView.queries)).elementEnd(previousOrParentTNode);\n        }\n    }\n}\n/**\n * Creates an empty logical container using {\\@link elementContainerStart}\n * and {\\@link elementContainerEnd}\n *\n * \\@codeGenApi\n * @param {?} index Index of the element in the LView array\n * @param {?=} attrsIndex Index of the container attributes in the `consts` array.\n * @param {?=} localRefsIndex Index of the container's local references in the `consts` array.\n *\n * @return {?}\n */\nfunction ɵɵelementContainer(index, attrsIndex, localRefsIndex) {\n    ɵɵelementContainerStart(index, attrsIndex, localRefsIndex);\n    ɵɵelementContainerEnd();\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/get_current_view.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Returns the current OpaqueViewState instance.\n *\n * Used in conjunction with the restoreView() instruction to save a snapshot\n * of the current view and restore it when listeners are invoked. This allows\n * walking the declaration view tree in listeners to get vars from parent views.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵgetCurrentView() {\n    return (/** @type {?} */ ((/** @type {?} */ (getLView()))));\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Determine if the argument is shaped like a Promise\n */\nfunction isPromise(obj) {\n    // allow any Promise/A+ compliant thenable.\n    // It's up to the caller to ensure that obj.then conforms to the spec\n    return !!obj && typeof obj.then === 'function';\n}\n/**\n * Determine if the argument is an Observable\n */\nfunction isObservable(obj) {\n    // TODO: use isObservable once we update pass rxjs 6.1\n    // https://github.com/ReactiveX/rxjs/blob/master/CHANGELOG.md#610-2018-05-03\n    return !!obj && typeof obj.subscribe === 'function';\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/listener.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Adds an event listener to the current node.\n *\n * If an output exists on one of the node's directives, it also subscribes to the output\n * and saves the subscription for later cleanup.\n *\n * \\@codeGenApi\n * @param {?} eventName Name of the event\n * @param {?} listenerFn The function to be called when event emits\n * @param {?=} useCapture Whether or not to use capture in event listener\n * @param {?=} eventTargetResolver Function that returns global target information in case this listener\n * should be attached to a global object like window, document or body\n *\n * @return {?}\n */\nfunction ɵɵlistener(eventName, listenerFn, useCapture = false, eventTargetResolver) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const tNode = getPreviousOrParentTNode();\n    listenerInternal(tView, lView, lView[RENDERER], tNode, eventName, listenerFn, useCapture, eventTargetResolver);\n    return ɵɵlistener;\n}\n/**\n * Registers a synthetic host listener (e.g. `(\\@foo.start)`) on a component or directive.\n *\n * This instruction is for compatibility purposes and is designed to ensure that a\n * synthetic host listener (e.g. `\\@HostListener('\\@foo.start')`) properly gets rendered\n * in the component's renderer. Normally all host listeners are evaluated with the\n * parent component's renderer, but, in the case of animation \\@triggers, they need\n * to be evaluated with the sub component's renderer (because that's where the\n * animation triggers are defined).\n *\n * Do not use this instruction as a replacement for `listener`. This instruction\n * only exists to ensure compatibility with the ViewEngine's host binding behavior.\n *\n * \\@codeGenApi\n * @param {?} eventName Name of the event\n * @param {?} listenerFn The function to be called when event emits\n * @param {?=} useCapture Whether or not to use capture in event listener\n * @param {?=} eventTargetResolver Function that returns global target information in case this listener\n * should be attached to a global object like window, document or body\n *\n * @return {?}\n */\nfunction ɵɵcomponentHostSyntheticListener(eventName, listenerFn, useCapture = false, eventTargetResolver) {\n    /** @type {?} */\n    const tNode = getPreviousOrParentTNode();\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const currentDef = getCurrentDirectiveDef(tView.data);\n    /** @type {?} */\n    const renderer = loadComponentRenderer(currentDef, tNode, lView);\n    listenerInternal(tView, lView, renderer, tNode, eventName, listenerFn, useCapture, eventTargetResolver);\n    return ɵɵcomponentHostSyntheticListener;\n}\n/**\n * A utility function that checks if a given element has already an event handler registered for an\n * event with a specified name. The TView.cleanup data structure is used to find out which events\n * are registered for a given element.\n * @param {?} tView\n * @param {?} lView\n * @param {?} eventName\n * @param {?} tNodeIdx\n * @return {?}\n */\nfunction findExistingListener(tView, lView, eventName, tNodeIdx) {\n    /** @type {?} */\n    const tCleanup = tView.cleanup;\n    if (tCleanup != null) {\n        for (let i = 0; i < tCleanup.length - 1; i += 2) {\n            /** @type {?} */\n            const cleanupEventName = tCleanup[i];\n            if (cleanupEventName === eventName && tCleanup[i + 1] === tNodeIdx) {\n                // We have found a matching event name on the same node but it might not have been\n                // registered yet, so we must explicitly verify entries in the LView cleanup data\n                // structures.\n                /** @type {?} */\n                const lCleanup = (/** @type {?} */ (lView[CLEANUP]));\n                /** @type {?} */\n                const listenerIdxInLCleanup = tCleanup[i + 2];\n                return lCleanup.length > listenerIdxInLCleanup ? lCleanup[listenerIdxInLCleanup] : null;\n            }\n            // TView.cleanup can have a mix of 4-elements entries (for event handler cleanups) or\n            // 2-element entries (for directive and queries destroy hooks). As such we can encounter\n            // blocks of 4 or 2 items in the tView.cleanup and this is why we iterate over 2 elements\n            // first and jump another 2 elements if we detect listeners cleanup (4 elements). Also check\n            // documentation of TView.cleanup for more details of this data structure layout.\n            if (typeof cleanupEventName === 'string') {\n                i += 2;\n            }\n        }\n    }\n    return null;\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} renderer\n * @param {?} tNode\n * @param {?} eventName\n * @param {?} listenerFn\n * @param {?=} useCapture\n * @param {?=} eventTargetResolver\n * @return {?}\n */\nfunction listenerInternal(tView, lView, renderer, tNode, eventName, listenerFn, useCapture = false, eventTargetResolver) {\n    /** @type {?} */\n    const isTNodeDirectiveHost = isDirectiveHost(tNode);\n    /** @type {?} */\n    const firstCreatePass = tView.firstCreatePass;\n    /** @type {?} */\n    const tCleanup = firstCreatePass && (tView.cleanup || (tView.cleanup = []));\n    // When the ɵɵlistener instruction was generated and is executed we know that there is either a\n    // native listener or a directive output on this element. As such we we know that we will have to\n    // register a listener and store its cleanup function on LView.\n    /** @type {?} */\n    const lCleanup = getLCleanup(lView);\n    ngDevMode &&\n        assertNodeOfPossibleTypes(tNode, 3 /* Element */, 0 /* Container */, 4 /* ElementContainer */);\n    /** @type {?} */\n    let processOutputs = true;\n    // add native event listener - applicable to elements only\n    if (tNode.type === 3 /* Element */) {\n        /** @type {?} */\n        const native = (/** @type {?} */ (getNativeByTNode(tNode, lView)));\n        /** @type {?} */\n        const resolved = eventTargetResolver ? eventTargetResolver(native) : (/** @type {?} */ (EMPTY_OBJ));\n        /** @type {?} */\n        const target = resolved.target || native;\n        /** @type {?} */\n        const lCleanupIndex = lCleanup.length;\n        /** @type {?} */\n        const idxOrTargetGetter = eventTargetResolver ?\n            (/**\n             * @param {?} _lView\n             * @return {?}\n             */\n            (_lView) => eventTargetResolver(unwrapRNode(_lView[tNode.index])).target) :\n            tNode.index;\n        // In order to match current behavior, native DOM event listeners must be added for all\n        // events (including outputs).\n        if (isProceduralRenderer(renderer)) {\n            // There might be cases where multiple directives on the same element try to register an event\n            // handler function for the same event. In this situation we want to avoid registration of\n            // several native listeners as each registration would be intercepted by NgZone and\n            // trigger change detection. This would mean that a single user action would result in several\n            // change detections being invoked. To avoid this situation we want to have only one call to\n            // native handler registration (for the same element and same type of event).\n            //\n            // In order to have just one native event handler in presence of multiple handler functions,\n            // we just register a first handler function as a native event listener and then chain\n            // (coalesce) other handler functions on top of the first native handler function.\n            /** @type {?} */\n            let existingListener = null;\n            // Please note that the coalescing described here doesn't happen for events specifying an\n            // alternative target (ex. (document:click)) - this is to keep backward compatibility with the\n            // view engine.\n            // Also, we don't have to search for existing listeners is there are no directives\n            // matching on a given node as we can't register multiple event handlers for the same event in\n            // a template (this would mean having duplicate attributes).\n            if (!eventTargetResolver && isTNodeDirectiveHost) {\n                existingListener = findExistingListener(tView, lView, eventName, tNode.index);\n            }\n            if (existingListener !== null) {\n                // Attach a new listener to coalesced listeners list, maintaining the order in which\n                // listeners are registered. For performance reasons, we keep a reference to the last\n                // listener in that list (in `__ngLastListenerFn__` field), so we can avoid going through\n                // the entire set each time we need to add a new listener.\n                /** @type {?} */\n                const lastListenerFn = ((/** @type {?} */ (existingListener))).__ngLastListenerFn__ || existingListener;\n                lastListenerFn.__ngNextListenerFn__ = listenerFn;\n                ((/** @type {?} */ (existingListener))).__ngLastListenerFn__ = listenerFn;\n                processOutputs = false;\n            }\n            else {\n                // The first argument of `listen` function in Procedural Renderer is:\n                // - either a target name (as a string) in case of global target (window, document, body)\n                // - or element reference (in all other cases)\n                listenerFn = wrapListener(tNode, lView, listenerFn, false /** preventDefault */);\n                /** @type {?} */\n                const cleanupFn = renderer.listen(resolved.name || target, eventName, listenerFn);\n                ngDevMode && ngDevMode.rendererAddEventListener++;\n                lCleanup.push(listenerFn, cleanupFn);\n                tCleanup && tCleanup.push(eventName, idxOrTargetGetter, lCleanupIndex, lCleanupIndex + 1);\n            }\n        }\n        else {\n            listenerFn = wrapListener(tNode, lView, listenerFn, true /** preventDefault */);\n            target.addEventListener(eventName, listenerFn, useCapture);\n            ngDevMode && ngDevMode.rendererAddEventListener++;\n            lCleanup.push(listenerFn);\n            tCleanup && tCleanup.push(eventName, idxOrTargetGetter, lCleanupIndex, useCapture);\n        }\n    }\n    // subscribe to directive outputs\n    /** @type {?} */\n    const outputs = tNode.outputs;\n    /** @type {?} */\n    let props;\n    if (processOutputs && outputs !== null && (props = outputs[eventName])) {\n        /** @type {?} */\n        const propsLength = props.length;\n        if (propsLength) {\n            for (let i = 0; i < propsLength; i += 2) {\n                /** @type {?} */\n                const index = (/** @type {?} */ (props[i]));\n                ngDevMode && assertDataInRange(lView, index);\n                /** @type {?} */\n                const minifiedName = props[i + 1];\n                /** @type {?} */\n                const directiveInstance = lView[index];\n                /** @type {?} */\n                const output = directiveInstance[minifiedName];\n                if (ngDevMode && !isObservable(output)) {\n                    throw new Error(`@Output ${minifiedName} not initialized in '${directiveInstance.constructor.name}'.`);\n                }\n                /** @type {?} */\n                const subscription = output.subscribe(listenerFn);\n                /** @type {?} */\n                const idx = lCleanup.length;\n                lCleanup.push(listenerFn, subscription);\n                tCleanup && tCleanup.push(eventName, tNode.index, idx, -(idx + 1));\n            }\n        }\n    }\n}\n/**\n * @param {?} lView\n * @param {?} listenerFn\n * @param {?} e\n * @return {?}\n */\nfunction executeListenerWithErrorHandling(lView, listenerFn, e) {\n    try {\n        // Only explicitly returning false from a listener should preventDefault\n        return listenerFn(e) !== false;\n    }\n    catch (error) {\n        handleError(lView, error);\n        return false;\n    }\n}\n/**\n * Wraps an event listener with a function that marks ancestors dirty and prevents default behavior,\n * if applicable.\n *\n * @param {?} tNode The TNode associated with this listener\n * @param {?} lView The LView that contains this listener\n * @param {?} listenerFn The listener function to call\n * @param {?} wrapWithPreventDefault Whether or not to prevent default behavior\n * (the procedural renderer does this already, so in those cases, we should skip)\n * @return {?}\n */\nfunction wrapListener(tNode, lView, listenerFn, wrapWithPreventDefault) {\n    // Note: we are performing most of the work in the listener function itself\n    // to optimize listener registration.\n    return (/**\n     * @param {?} e\n     * @return {?}\n     */\n    function wrapListenerIn_markDirtyAndPreventDefault(e) {\n        // Ivy uses `Function` as a special token that allows us to unwrap the function\n        // so that it can be invoked programmatically by `DebugNode.triggerEventHandler`.\n        if (e === Function) {\n            return listenerFn;\n        }\n        // In order to be backwards compatible with View Engine, events on component host nodes\n        // must also mark the component view itself dirty (i.e. the view that it owns).\n        /** @type {?} */\n        const startView = tNode.flags & 2 /* isComponentHost */ ?\n            getComponentLViewByIndex(tNode.index, lView) :\n            lView;\n        // See interfaces/view.ts for more on LViewFlags.ManualOnPush\n        if ((lView[FLAGS] & 32 /* ManualOnPush */) === 0) {\n            markViewDirty(startView);\n        }\n        /** @type {?} */\n        let result = executeListenerWithErrorHandling(lView, listenerFn, e);\n        // A just-invoked listener function might have coalesced listeners so we need to check for\n        // their presence and invoke as needed.\n        /** @type {?} */\n        let nextListenerFn = ((/** @type {?} */ (wrapListenerIn_markDirtyAndPreventDefault))).__ngNextListenerFn__;\n        while (nextListenerFn) {\n            // We should prevent default if any of the listeners explicitly return false\n            result = executeListenerWithErrorHandling(lView, nextListenerFn, e) && result;\n            nextListenerFn = ((/** @type {?} */ (nextListenerFn))).__ngNextListenerFn__;\n        }\n        if (wrapWithPreventDefault && result === false) {\n            e.preventDefault();\n            // Necessary for legacy browsers that don't support preventDefault (e.g. IE)\n            e.returnValue = false;\n        }\n        return result;\n    });\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/namespace.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/next_context.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Retrieves a context at the level specified and saves it as the global, contextViewData.\n * Will get the next level up if level is not specified.\n *\n * This is used to save contexts of parent views so they can be bound in embedded views, or\n * in conjunction with reference() to bind a ref from a parent view.\n *\n * \\@codeGenApi\n * @template T\n * @param {?=} level The relative level of the view from which to grab context compared to contextVewData\n * @return {?} context\n *\n */\nfunction ɵɵnextContext(level = 1) {\n    return nextContextImpl(level);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/projection.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Checks a given node against matching projection slots and returns the\n * determined slot index. Returns \"null\" if no slot matched the given node.\n *\n * This function takes into account the parsed ngProjectAs selector from the\n * node's attributes. If present, it will check whether the ngProjectAs selector\n * matches any of the projection slot selectors.\n * @param {?} tNode\n * @param {?} projectionSlots\n * @return {?}\n */\nfunction matchingProjectionSlotIndex(tNode, projectionSlots) {\n    /** @type {?} */\n    let wildcardNgContentIndex = null;\n    /** @type {?} */\n    const ngProjectAsAttrVal = getProjectAsAttrValue(tNode);\n    for (let i = 0; i < projectionSlots.length; i++) {\n        /** @type {?} */\n        const slotValue = projectionSlots[i];\n        // The last wildcard projection slot should match all nodes which aren't matching\n        // any selector. This is necessary to be backwards compatible with view engine.\n        if (slotValue === '*') {\n            wildcardNgContentIndex = i;\n            continue;\n        }\n        // If we ran into an `ngProjectAs` attribute, we should match its parsed selector\n        // to the list of selectors, otherwise we fall back to matching against the node.\n        if (ngProjectAsAttrVal === null ?\n            isNodeMatchingSelectorList(tNode, slotValue, /* isProjectionMode */ true) :\n            isSelectorInSelectorList(ngProjectAsAttrVal, slotValue)) {\n            return i; // first matching selector \"captures\" a given node\n        }\n    }\n    return wildcardNgContentIndex;\n}\n/**\n * Instruction to distribute projectable nodes among <ng-content> occurrences in a given template.\n * It takes all the selectors from the entire component's template and decides where\n * each projected node belongs (it re-distributes nodes among \"buckets\" where each \"bucket\" is\n * backed by a selector).\n *\n * This function requires CSS selectors to be provided in 2 forms: parsed (by a compiler) and text,\n * un-parsed form.\n *\n * The parsed form is needed for efficient matching of a node against a given CSS selector.\n * The un-parsed, textual form is needed for support of the ngProjectAs attribute.\n *\n * Having a CSS selector in 2 different formats is not ideal, but alternatives have even more\n * drawbacks:\n * - having only a textual form would require runtime parsing of CSS selectors;\n * - we can't have only a parsed as we can't re-construct textual form from it (as entered by a\n * template author).\n *\n * \\@codeGenApi\n * @param {?=} projectionSlots\n * @return {?}\n */\nfunction ɵɵprojectionDef(projectionSlots) {\n    /** @type {?} */\n    const componentNode = (/** @type {?} */ (getLView()[DECLARATION_COMPONENT_VIEW][T_HOST]));\n    if (!componentNode.projection) {\n        // If no explicit projection slots are defined, fall back to a single\n        // projection slot with the wildcard selector.\n        /** @type {?} */\n        const numProjectionSlots = projectionSlots ? projectionSlots.length : 1;\n        /** @type {?} */\n        const projectionHeads = componentNode.projection =\n            newArray(numProjectionSlots, (/** @type {?} */ ((/** @type {?} */ (null)))));\n        /** @type {?} */\n        const tails = projectionHeads.slice();\n        /** @type {?} */\n        let componentChild = componentNode.child;\n        while (componentChild !== null) {\n            /** @type {?} */\n            const slotIndex = projectionSlots ? matchingProjectionSlotIndex(componentChild, projectionSlots) : 0;\n            if (slotIndex !== null) {\n                if (tails[slotIndex]) {\n                    (/** @type {?} */ (tails[slotIndex])).projectionNext = componentChild;\n                }\n                else {\n                    projectionHeads[slotIndex] = componentChild;\n                }\n                tails[slotIndex] = componentChild;\n            }\n            componentChild = componentChild.next;\n        }\n    }\n}\n/** @type {?} */\nlet delayProjection = false;\n/**\n * @param {?} value\n * @return {?}\n */\nfunction setDelayProjection(value) {\n    delayProjection = value;\n}\n/**\n * Inserts previously re-distributed projected nodes. This instruction must be preceded by a call\n * to the projectionDef instruction.\n *\n * \\@codeGenApi\n * @param {?} nodeIndex\n * @param {?=} selectorIndex\n * @param {?=} attrs\n * @return {?}\n */\nfunction ɵɵprojection(nodeIndex, selectorIndex = 0, attrs) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const tProjectionNode = getOrCreateTNode(tView, lView[T_HOST], nodeIndex, 1 /* Projection */, null, attrs || null);\n    // We can't use viewData[HOST_NODE] because projection nodes can be nested in embedded views.\n    if (tProjectionNode.projection === null)\n        tProjectionNode.projection = selectorIndex;\n    // `<ng-content>` has no content\n    setIsNotParent();\n    // We might need to delay the projection of nodes if they are in the middle of an i18n block\n    if (!delayProjection) {\n        // re-distribution of projectable nodes is stored on a component's view level\n        applyProjection(tView, lView, tProjectionNode);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/property_interpolation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n *\n * Update an interpolated property on an element with a lone bound value\n *\n * Used when the value passed to a property has 1 interpolated value in it, an no additional text\n * surrounds that interpolated value:\n *\n * ```html\n * <div title=\"{{v0}}\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate('title', v0);\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} v0 Value checked for change.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate(propName, v0, sanitizer) {\n    ɵɵpropertyInterpolate1(propName, '', v0, '', sanitizer);\n    return ɵɵpropertyInterpolate;\n}\n/**\n *\n * Update an interpolated property on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate1('title', 'prefix', v0, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate1(propName, prefix, v0, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 1, prefix, suffix);\n    }\n    return ɵɵpropertyInterpolate1;\n}\n/**\n *\n * Update an interpolated property on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate2('title', 'prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate2(propName, prefix, v0, i0, v1, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 2, prefix, i0, suffix);\n    }\n    return ɵɵpropertyInterpolate2;\n}\n/**\n *\n * Update an interpolated property on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate3(\n * 'title', 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate3(propName, prefix, v0, i0, v1, i1, v2, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 3, prefix, i0, i1, suffix);\n    }\n    return ɵɵpropertyInterpolate3;\n}\n/**\n *\n * Update an interpolated property on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate4(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate4(propName, prefix, v0, i0, v1, i1, v2, i2, v3, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 4, prefix, i0, i1, i2, suffix);\n    }\n    return ɵɵpropertyInterpolate4;\n}\n/**\n *\n * Update an interpolated property on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate5(\n * 'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate5(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 5, prefix, i0, i1, i2, i3, suffix);\n    }\n    return ɵɵpropertyInterpolate5;\n}\n/**\n *\n * Update an interpolated property on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate6(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate6(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 6, prefix, i0, i1, i2, i3, i4, suffix);\n    }\n    return ɵɵpropertyInterpolate6;\n}\n/**\n *\n * Update an interpolated property on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate7(\n *    'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate7(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 7, prefix, i0, i1, i2, i3, i4, i5, suffix);\n    }\n    return ɵɵpropertyInterpolate7;\n}\n/**\n *\n * Update an interpolated property on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolate8(\n *  'title', 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} i6 Static value used for concatenation only.\n * @param {?} v7 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolate8(propName, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        ngDevMode &&\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - 8, prefix, i0, i1, i2, i3, i4, i5, i6, suffix);\n    }\n    return ɵɵpropertyInterpolate8;\n}\n/**\n * Update an interpolated property on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  title=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is::\n *\n * ```ts\n * ɵɵpropertyInterpolateV(\n *  'title', ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *\n * If the property name also exists as an input property on one of the element's directives,\n * the component property will be set instead of the element property. This check must\n * be conducted at runtime so child components that add new `\\@Inputs` don't have to be re-compiled.\n *\n * \\@codeGenApi\n * @param {?} propName The name of the property to update.\n * @param {?} values The collection of values and the strings inbetween those values, beginning with a\n * string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @param {?=} sanitizer An optional sanitizer function\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵpropertyInterpolateV(propName, values, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolationV(lView, values);\n    if (interpolatedValue !== NO_CHANGE) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, interpolatedValue, lView[RENDERER], sanitizer, false);\n        if (ngDevMode) {\n            /** @type {?} */\n            const interpolationInBetween = [values[0]];\n            for (let i = 2; i < values.length; i += 2) {\n                interpolationInBetween.push(values[i]);\n            }\n            storePropertyBindingMetadata(tView.data, tNode, propName, getBindingIndex() - interpolationInBetween.length + 1, ...interpolationInBetween);\n        }\n    }\n    return ɵɵpropertyInterpolateV;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * This file contains reuseable \"empty\" symbols that can be used as default return values\n * in different parts of the rendering code. Because the same symbols are returned, this\n * allows for identity checks against these values to be consistently used by the framework\n * code.\n */\nconst EMPTY_OBJ$1 = {};\nconst EMPTY_ARRAY$3 = [];\n// freezing the values prevents any code from accidentally inserting new values in\nif ((typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode()) {\n    // These property accesses can be ignored because ngDevMode will be set to false\n    // when optimizing code and the whole if statement will be dropped.\n    // tslint:disable-next-line:no-toplevel-property-access\n    Object.freeze(EMPTY_OBJ$1);\n    // tslint:disable-next-line:no-toplevel-property-access\n    Object.freeze(EMPTY_ARRAY$3);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/styling/style_binding_list.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * NOTE: The word `styling` is used interchangeably as style or class styling.\n *\n * This file contains code to link styling instructions together so that they can be replayed in\n * priority order. The file exists because Ivy styling instruction execution order does not match\n * that of the priority order. The purpose of this code is to create a linked list so that the\n * instructions can be traversed in priority order when computing the styles.\n *\n * Assume we are dealing with the following code:\n * ```\n * \\@Component({\n *   template: `\n *     <my-cmp [style]=\" {color: '#001'} \"\n *             [style.color]=\" #002 \"\n *             dir-style-color-1\n *             dir-style-color-2> `\n * })\n * class ExampleComponent {\n *   static ngComp = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#001'});\n *     ɵɵstyleProp('color', '#002');\n *     ...\n *   }\n * }\n *\n * \\@Directive({\n *   selector: `[dir-style-color-1]',\n * })\n * class Style1Directive {\n * \\@HostBinding('style') style = {color: '#005'};\n * \\@HostBinding('style.color') color = '#006';\n *\n *   static ngDir = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#005'});\n *     ɵɵstyleProp('color', '#006');\n *     ...\n *   }\n * }\n *\n * \\@Directive({\n *   selector: `[dir-style-color-2]',\n * })\n * class Style2Directive {\n * \\@HostBinding('style') style = {color: '#007'};\n * \\@HostBinding('style.color') color = '#008';\n *\n *   static ngDir = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#007'});\n *     ɵɵstyleProp('color', '#008');\n *     ...\n *   }\n * }\n *\n * \\@Directive({\n *   selector: `my-cmp',\n * })\n * class MyComponent {\n * \\@HostBinding('style') style = {color: '#003'};\n * \\@HostBinding('style.color') color = '#004';\n *\n *   static ngComp = ... {\n *     ...\n *     // Compiler ensures that `ɵɵstyleProp` is after `ɵɵstyleMap`\n *     ɵɵstyleMap({color: '#003'});\n *     ɵɵstyleProp('color', '#004');\n *     ...\n *   }\n * }\n * ```\n *\n * The Order of instruction execution is:\n *\n * NOTE: the comment binding location is for illustrative purposes only.\n *\n * ```\n * // Template: (ExampleComponent)\n *     ɵɵstyleMap({color: '#001'});   // Binding index: 10\n *     ɵɵstyleProp('color', '#002');  // Binding index: 12\n * // MyComponent\n *     ɵɵstyleMap({color: '#003'});   // Binding index: 20\n *     ɵɵstyleProp('color', '#004');  // Binding index: 22\n * // Style1Directive\n *     ɵɵstyleMap({color: '#005'});   // Binding index: 24\n *     ɵɵstyleProp('color', '#006');  // Binding index: 26\n * // Style2Directive\n *     ɵɵstyleMap({color: '#007'});   // Binding index: 28\n *     ɵɵstyleProp('color', '#008');  // Binding index: 30\n * ```\n *\n * The correct priority order of concatenation is:\n *\n * ```\n * // MyComponent\n *     ɵɵstyleMap({color: '#003'});   // Binding index: 20\n *     ɵɵstyleProp('color', '#004');  // Binding index: 22\n * // Style1Directive\n *     ɵɵstyleMap({color: '#005'});   // Binding index: 24\n *     ɵɵstyleProp('color', '#006');  // Binding index: 26\n * // Style2Directive\n *     ɵɵstyleMap({color: '#007'});   // Binding index: 28\n *     ɵɵstyleProp('color', '#008');  // Binding index: 30\n * // Template: (ExampleComponent)\n *     ɵɵstyleMap({color: '#001'});   // Binding index: 10\n *     ɵɵstyleProp('color', '#002');  // Binding index: 12\n * ```\n *\n * What color should be rendered?\n *\n * Once the items are correctly sorted in the list, the answer is simply the last item in the\n * concatenation list which is `#002`.\n *\n * To do so we keep a linked list of all of the bindings which pertain to this element.\n * Notice that the bindings are inserted in the order of execution, but the `TView.data` allows\n * us to traverse them in the order of priority.\n *\n * |Idx|`TView.data`|`LView`          | Notes\n * |---|------------|-----------------|--------------\n * |...|            |                 |\n * |10 |`null`      |`{color: '#001'}`| `ɵɵstyleMap('color', {color: '#001'})`\n * |11 |`30 | 12`   | ...             |\n * |12 |`color`     |`'#002'`         | `ɵɵstyleProp('color', '#002')`\n * |13 |`10 | 0`    | ...             |\n * |...|            |                 |\n * |20 |`null`      |`{color: '#003'}`| `ɵɵstyleMap('color', {color: '#003'})`\n * |21 |`0 | 22`    | ...             |\n * |22 |`color`     |`'#004'`         | `ɵɵstyleProp('color', '#004')`\n * |23 |`20 | 24`   | ...             |\n * |24 |`null`      |`{color: '#005'}`| `ɵɵstyleMap('color', {color: '#005'})`\n * |25 |`22 | 26`   | ...             |\n * |26 |`color`     |`'#006'`         | `ɵɵstyleProp('color', '#006')`\n * |27 |`24 | 28`   | ...             |\n * |28 |`null`      |`{color: '#007'}`| `ɵɵstyleMap('color', {color: '#007'})`\n * |29 |`26 | 30`   | ...             |\n * |30 |`color`     |`'#008'`         | `ɵɵstyleProp('color', '#008')`\n * |31 |`28 | 10`   | ...             |\n *\n * The above data structure allows us to re-concatenate the styling no matter which data binding\n * changes.\n *\n * NOTE: in addition to keeping track of next/previous index the `TView.data` also stores prev/next\n * duplicate bit. The duplicate bit if true says there either is a binding with the same name or\n * there is a map (which may contain the name). This information is useful in knowing if other\n * styles with higher priority need to be searched for overwrites.\n *\n * NOTE: See `should support example in 'tnode_linked_list.ts' documentation` in\n * `tnode_linked_list_spec.ts` for working example.\n * @type {?}\n */\nlet __unused_const_as_closure_does_not_like_standalone_comment_blocks__;\n/**\n * Insert new `tStyleValue` at `TData` and link existing style bindings such that we maintain linked\n * list of styles and compute the duplicate flag.\n *\n * Note: this function is executed during `firstUpdatePass` only to populate the `TView.data`.\n *\n * The function works by keeping track of `tStylingRange` which contains two pointers pointing to\n * the head/tail of the template portion of the styles.\n *  - if `isHost === false` (we are template) then insertion is at tail of `TStylingRange`\n *  - if `isHost === true` (we are host binding) then insertion is at head of `TStylingRange`\n *\n * @param {?} tData The `TData` to insert into.\n * @param {?} tNode `TNode` associated with the styling element.\n * @param {?} tStylingKeyWithStatic\n * @param {?} index location of where `tStyleValue` should be stored (and linked into list.)\n * @param {?} isHostBinding `true` if the insertion is for a `hostBinding`. (insertion is in front of\n *               template.)\n * @param {?} isClassBinding True if the associated `tStylingKey` as a `class` styling.\n *                       `tNode.classBindings` should be used (or `tNode.styleBindings` otherwise.)\n * @return {?}\n */\nfunction insertTStylingBinding(tData, tNode, tStylingKeyWithStatic, index, isHostBinding, isClassBinding) {\n    ngDevMode && assertFirstUpdatePass(getTView());\n    /** @type {?} */\n    let tBindings = isClassBinding ? tNode.classBindings : tNode.styleBindings;\n    /** @type {?} */\n    let tmplHead = getTStylingRangePrev(tBindings);\n    /** @type {?} */\n    let tmplTail = getTStylingRangeNext(tBindings);\n    tData[index] = tStylingKeyWithStatic;\n    /** @type {?} */\n    let isKeyDuplicateOfStatic = false;\n    /** @type {?} */\n    let tStylingKey;\n    if (Array.isArray(tStylingKeyWithStatic)) {\n        // We are case when the `TStylingKey` contains static fields as well.\n        /** @type {?} */\n        const staticKeyValueArray = (/** @type {?} */ (tStylingKeyWithStatic));\n        tStylingKey = staticKeyValueArray[1]; // unwrap.\n        // We need to check if our key is present in the static so that we can mark it as duplicate.\n        if (tStylingKey === null ||\n            keyValueArrayIndexOf(staticKeyValueArray, (/** @type {?} */ (tStylingKey))) > 0) {\n            // tStylingKey is present in the statics, need to mark it as duplicate.\n            isKeyDuplicateOfStatic = true;\n        }\n    }\n    else {\n        tStylingKey = tStylingKeyWithStatic;\n    }\n    if (isHostBinding) {\n        // We are inserting host bindings\n        // If we don't have template bindings then `tail` is 0.\n        /** @type {?} */\n        const hasTemplateBindings = tmplTail !== 0;\n        // This is important to know because that means that the `head` can't point to the first\n        // template bindings (there are none.) Instead the head points to the tail of the template.\n        if (hasTemplateBindings) {\n            // template head's \"prev\" will point to last host binding or to 0 if no host bindings yet\n            /** @type {?} */\n            const previousNode = getTStylingRangePrev((/** @type {?} */ (tData[tmplHead + 1])));\n            tData[index + 1] = toTStylingRange(previousNode, tmplHead);\n            // if a host binding has already been registered, we need to update the next of that host\n            // binding to point to this one\n            if (previousNode !== 0) {\n                // We need to update the template-tail value to point to us.\n                tData[previousNode + 1] =\n                    setTStylingRangeNext((/** @type {?} */ (tData[previousNode + 1])), index);\n            }\n            // The \"previous\" of the template binding head should point to this host binding\n            tData[tmplHead + 1] = setTStylingRangePrev((/** @type {?} */ (tData[tmplHead + 1])), index);\n        }\n        else {\n            tData[index + 1] = toTStylingRange(tmplHead, 0);\n            // if a host binding has already been registered, we need to update the next of that host\n            // binding to point to this one\n            if (tmplHead !== 0) {\n                // We need to update the template-tail value to point to us.\n                tData[tmplHead + 1] = setTStylingRangeNext((/** @type {?} */ (tData[tmplHead + 1])), index);\n            }\n            // if we don't have template, the head points to template-tail, and needs to be advanced.\n            tmplHead = index;\n        }\n    }\n    else {\n        // We are inserting in template section.\n        // We need to set this binding's \"previous\" to the current template tail\n        tData[index + 1] = toTStylingRange(tmplTail, 0);\n        ngDevMode &&\n            assertEqual(tmplHead !== 0 && tmplTail === 0, false, 'Adding template bindings after hostBindings is not allowed.');\n        if (tmplHead === 0) {\n            tmplHead = index;\n        }\n        else {\n            // We need to update the previous value \"next\" to point to this binding\n            tData[tmplTail + 1] = setTStylingRangeNext((/** @type {?} */ (tData[tmplTail + 1])), index);\n        }\n        tmplTail = index;\n    }\n    // Now we need to update / compute the duplicates.\n    // Starting with our location search towards head (least priority)\n    if (isKeyDuplicateOfStatic) {\n        tData[index + 1] = setTStylingRangePrevDuplicate((/** @type {?} */ (tData[index + 1])));\n    }\n    markDuplicates(tData, tStylingKey, index, true, isClassBinding);\n    markDuplicates(tData, tStylingKey, index, false, isClassBinding);\n    markDuplicateOfResidualStyling(tNode, tStylingKey, tData, index, isClassBinding);\n    tBindings = toTStylingRange(tmplHead, tmplTail);\n    if (isClassBinding) {\n        tNode.classBindings = tBindings;\n    }\n    else {\n        tNode.styleBindings = tBindings;\n    }\n}\n/**\n * Look into the residual styling to see if the current `tStylingKey` is duplicate of residual.\n *\n * @param {?} tNode `TNode` where the residual is stored.\n * @param {?} tStylingKey `TStylingKey` to store.\n * @param {?} tData `TData` associated with the current `LView`.\n * @param {?} index location of where `tStyleValue` should be stored (and linked into list.)\n * @param {?} isClassBinding True if the associated `tStylingKey` as a `class` styling.\n *                       `tNode.classBindings` should be used (or `tNode.styleBindings` otherwise.)\n * @return {?}\n */\nfunction markDuplicateOfResidualStyling(tNode, tStylingKey, tData, index, isClassBinding) {\n    /** @type {?} */\n    const residual = isClassBinding ? tNode.residualClasses : tNode.residualStyles;\n    if (residual != null /* or undefined */ && typeof tStylingKey == 'string' &&\n        keyValueArrayIndexOf(residual, tStylingKey) >= 0) {\n        // We have duplicate in the residual so mark ourselves as duplicate.\n        tData[index + 1] = setTStylingRangeNextDuplicate((/** @type {?} */ (tData[index + 1])));\n    }\n}\n/**\n * Marks `TStyleValue`s as duplicates if another style binding in the list has the same\n * `TStyleValue`.\n *\n * NOTE: this function is intended to be called twice once with `isPrevDir` set to `true` and once\n * with it set to `false` to search both the previous as well as next items in the list.\n *\n * No duplicate case\n * ```\n *   [style.color]\n *   [style.width.px] <<- index\n *   [style.height.px]\n * ```\n *\n * In the above case adding `[style.width.px]` to the existing `[style.color]` produces no\n * duplicates because `width` is not found in any other part of the linked list.\n *\n * Duplicate case\n * ```\n *   [style.color]\n *   [style.width.em]\n *   [style.width.px] <<- index\n * ```\n * In the above case adding `[style.width.px]` will produce a duplicate with `[style.width.em]`\n * because `width` is found in the chain.\n *\n * Map case 1\n * ```\n *   [style.width.px]\n *   [style.color]\n *   [style]  <<- index\n * ```\n * In the above case adding `[style]` will produce a duplicate with any other bindings because\n * `[style]` is a Map and as such is fully dynamic and could produce `color` or `width`.\n *\n * Map case 2\n * ```\n *   [style]\n *   [style.width.px]\n *   [style.color]  <<- index\n * ```\n * In the above case adding `[style.color]` will produce a duplicate because there is already a\n * `[style]` binding which is a Map and as such is fully dynamic and could produce `color` or\n * `width`.\n *\n * NOTE: Once `[style]` (Map) is added into the system all things are mapped as duplicates.\n * NOTE: We use `style` as example, but same logic is applied to `class`es as well.\n *\n * @param {?} tData `TData` where the linked list is stored.\n * @param {?} tStylingKey `TStylingKeyPrimitive` which contains the value to compare to other keys in\n *        the linked list.\n * @param {?} index Starting location in the linked list to search from\n * @param {?} isPrevDir Direction.\n *        - `true` for previous (lower priority);\n *        - `false` for next (higher priority).\n * @param {?} isClassBinding\n * @return {?}\n */\nfunction markDuplicates(tData, tStylingKey, index, isPrevDir, isClassBinding) {\n    /** @type {?} */\n    const tStylingAtIndex = (/** @type {?} */ (tData[index + 1]));\n    /** @type {?} */\n    const isMap = tStylingKey === null;\n    /** @type {?} */\n    let cursor = isPrevDir ? getTStylingRangePrev(tStylingAtIndex) : getTStylingRangeNext(tStylingAtIndex);\n    /** @type {?} */\n    let foundDuplicate = false;\n    // We keep iterating as long as we have a cursor\n    // AND either:\n    // - we found what we are looking for, OR\n    // - we are a map in which case we have to continue searching even after we find what we were\n    //   looking for since we are a wild card and everything needs to be flipped to duplicate.\n    while (cursor !== 0 && (foundDuplicate === false || isMap)) {\n        ngDevMode && assertDataInRange(tData, cursor);\n        /** @type {?} */\n        const tStylingValueAtCursor = (/** @type {?} */ (tData[cursor]));\n        /** @type {?} */\n        const tStyleRangeAtCursor = (/** @type {?} */ (tData[cursor + 1]));\n        if (isStylingMatch(tStylingValueAtCursor, tStylingKey)) {\n            foundDuplicate = true;\n            tData[cursor + 1] = isPrevDir ? setTStylingRangeNextDuplicate(tStyleRangeAtCursor) :\n                setTStylingRangePrevDuplicate(tStyleRangeAtCursor);\n        }\n        cursor = isPrevDir ? getTStylingRangePrev(tStyleRangeAtCursor) :\n            getTStylingRangeNext(tStyleRangeAtCursor);\n    }\n    if (foundDuplicate) {\n        // if we found a duplicate, than mark ourselves.\n        tData[index + 1] = isPrevDir ? setTStylingRangePrevDuplicate(tStylingAtIndex) :\n            setTStylingRangeNextDuplicate(tStylingAtIndex);\n    }\n}\n/**\n * Determines if two `TStylingKey`s are a match.\n *\n * When computing weather a binding contains a duplicate, we need to compare if the instruction\n * `TStylingKey` has a match.\n *\n * Here are examples of `TStylingKey`s which match given `tStylingKeyCursor` is:\n * - `color`\n *    - `color`    // Match another color\n *    - `null`     // That means that `tStylingKey` is a `classMap`/`styleMap` instruction\n *    - `['', 'color', 'other', true]` // wrapped `color` so match\n *    - `['', null, 'other', true]`       // wrapped `null` so match\n *    - `['', 'width', 'color', 'value']` // wrapped static value contains a match on `'color'`\n * - `null`       // `tStylingKeyCursor` always match as it is `classMap`/`styleMap` instruction\n *\n * @param {?} tStylingKeyCursor\n * @param {?} tStylingKey\n * @return {?}\n */\nfunction isStylingMatch(tStylingKeyCursor, tStylingKey) {\n    ngDevMode &&\n        assertNotEqual(Array.isArray(tStylingKey), true, 'Expected that \\'tStylingKey\\' has been unwrapped');\n    if (tStylingKeyCursor === null || // If the cursor is `null` it means that we have map at that\n        // location so we must assume that we have a match.\n        tStylingKey == null || // If `tStylingKey` is `null` then it is a map therefor assume that it\n        // contains a match.\n        (Array.isArray(tStylingKeyCursor) ? tStylingKeyCursor[1] : tStylingKeyCursor) ===\n            tStylingKey // If the keys match explicitly than we are a match.\n    ) {\n        return true;\n    }\n    else if (Array.isArray(tStylingKeyCursor) && typeof tStylingKey === 'string') {\n        // if we did not find a match, but `tStylingKeyCursor` is `KeyValueArray` that means cursor has\n        // statics and we need to check those as well.\n        return keyValueArrayIndexOf(tStylingKeyCursor, tStylingKey) >=\n            0; // see if we are matching the key\n    }\n    return false;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/styling/styling_parser.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Stores the locations of key/value indexes while parsing styling.\n *\n * In case of `cssText` parsing the indexes are like so:\n * ```\n *   \"key1: value1; key2: value2; key3: value3\"\n *                  ^   ^ ^     ^             ^\n *                  |   | |     |             +-- textEnd\n *                  |   | |     +---------------- valueEnd\n *                  |   | +---------------------- value\n *                  |   +------------------------ keyEnd\n *                  +---------------------------- key\n * ```\n *\n * In case of `className` parsing the indexes are like so:\n * ```\n *   \"key1 key2 key3\"\n *         ^   ^    ^\n *         |   |    +-- textEnd\n *         |   +------------------------ keyEnd\n *         +---------------------------- key\n * ```\n * NOTE: `value` and `valueEnd` are used only for styles, not classes.\n * @record\n */\nfunction ParserState() { }\nif (false) {\n    /** @type {?} */\n    ParserState.prototype.textEnd;\n    /** @type {?} */\n    ParserState.prototype.key;\n    /** @type {?} */\n    ParserState.prototype.keyEnd;\n    /** @type {?} */\n    ParserState.prototype.value;\n    /** @type {?} */\n    ParserState.prototype.valueEnd;\n}\n// Global state of the parser. (This makes parser non-reentrant, but that is not an issue)\n/** @type {?} */\nconst parserState = {\n    textEnd: 0,\n    key: 0,\n    keyEnd: 0,\n    value: 0,\n    valueEnd: 0,\n};\n/**\n * Retrieves the last parsed `key` of style.\n * @param {?} text the text to substring the key from.\n * @return {?}\n */\nfunction getLastParsedKey(text) {\n    return text.substring(parserState.key, parserState.keyEnd);\n}\n/**\n * Retrieves the last parsed `value` of style.\n * @param {?} text the text to substring the key from.\n * @return {?}\n */\nfunction getLastParsedValue(text) {\n    return text.substring(parserState.value, parserState.valueEnd);\n}\n/**\n * Initializes `className` string for parsing and parses the first token.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseClassName(text); i >= 0; i = parseClassNameNext(text, i)) {\n *   const key = getLastParsedKey();\n *   ...\n * }\n * ```\n * @param {?} text `className` to parse\n * @return {?} index where the next invocation of `parseClassNameNext` should resume.\n */\nfunction parseClassName(text) {\n    resetParserState(text);\n    return parseClassNameNext(text, consumeWhitespace(text, 0, parserState.textEnd));\n}\n/**\n * Parses next `className` token.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseClassName(text); i >= 0; i = parseClassNameNext(text, i)) {\n *   const key = getLastParsedKey();\n *   ...\n * }\n * ```\n *\n * @param {?} text `className` to parse\n * @param {?} index where the parsing should resume.\n * @return {?} index where the next invocation of `parseClassNameNext` should resume.\n */\nfunction parseClassNameNext(text, index) {\n    /** @type {?} */\n    const end = parserState.textEnd;\n    if (end === index) {\n        return -1;\n    }\n    index = parserState.keyEnd = consumeClassToken(text, parserState.key = index, end);\n    return consumeWhitespace(text, index, end);\n}\n/**\n * Initializes `cssText` string for parsing and parses the first key/values.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseStyle(text); i >= 0; i = parseStyleNext(text, i))) {\n *   const key = getLastParsedKey();\n *   const value = getLastParsedValue();\n *   ...\n * }\n * ```\n * @param {?} text `cssText` to parse\n * @return {?} index where the next invocation of `parseStyleNext` should resume.\n */\nfunction parseStyle(text) {\n    resetParserState(text);\n    return parseStyleNext(text, consumeWhitespace(text, 0, parserState.textEnd));\n}\n/**\n * Parses the next `cssText` key/values.\n *\n * This function is intended to be used in this format:\n * ```\n * for (let i = parseStyle(text); i >= 0; i = parseStyleNext(text, i))) {\n *   const key = getLastParsedKey();\n *   const value = getLastParsedValue();\n *   ...\n * }\n *\n * @param {?} text `cssText` to parse\n * @param {?} startIndex\n * @return {?} index where the next invocation of `parseStyleNext` should resume.\n */\nfunction parseStyleNext(text, startIndex) {\n    /** @type {?} */\n    const end = parserState.textEnd;\n    /** @type {?} */\n    let index = parserState.key = consumeWhitespace(text, startIndex, end);\n    if (end === index) {\n        // we reached an end so just quit\n        return -1;\n    }\n    index = parserState.keyEnd = consumeStyleKey(text, index, end);\n    index = consumeSeparator(text, index, end, 58 /* COLON */);\n    index = parserState.value = consumeWhitespace(text, index, end);\n    index = parserState.valueEnd = consumeStyleValue(text, index, end);\n    return consumeSeparator(text, index, end, 59 /* SEMI_COLON */);\n}\n/**\n * Reset the global state of the styling parser.\n * @param {?} text The styling text to parse.\n * @return {?}\n */\nfunction resetParserState(text) {\n    parserState.key = 0;\n    parserState.keyEnd = 0;\n    parserState.value = 0;\n    parserState.valueEnd = 0;\n    parserState.textEnd = text.length;\n}\n/**\n * Returns index of next non-whitespace character.\n *\n * @param {?} text Text to scan\n * @param {?} startIndex Starting index of character where the scan should start.\n * @param {?} endIndex Ending index of character where the scan should end.\n * @return {?} Index of next non-whitespace character (May be the same as `start` if no whitespace at\n *          that location.)\n */\nfunction consumeWhitespace(text, startIndex, endIndex) {\n    while (startIndex < endIndex && text.charCodeAt(startIndex) <= 32 /* SPACE */) {\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Returns index of last char in class token.\n *\n * @param {?} text Text to scan\n * @param {?} startIndex Starting index of character where the scan should start.\n * @param {?} endIndex Ending index of character where the scan should end.\n * @return {?} Index after last char in class token.\n */\nfunction consumeClassToken(text, startIndex, endIndex) {\n    while (startIndex < endIndex && text.charCodeAt(startIndex) > 32 /* SPACE */) {\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Consumes all of the characters belonging to style key and token.\n *\n * @param {?} text Text to scan\n * @param {?} startIndex Starting index of character where the scan should start.\n * @param {?} endIndex Ending index of character where the scan should end.\n * @return {?} Index after last style key character.\n */\nfunction consumeStyleKey(text, startIndex, endIndex) {\n    /** @type {?} */\n    let ch;\n    while (startIndex < endIndex &&\n        ((ch = text.charCodeAt(startIndex)) === 45 /* DASH */ || ch === 95 /* UNDERSCORE */ ||\n            ((ch & -33 /* UPPER_CASE */) >= 65 /* A */ && (ch & -33 /* UPPER_CASE */) <= 90 /* Z */))) {\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Consumes all whitespace and the separator `:` after the style key.\n *\n * @param {?} text Text to scan\n * @param {?} startIndex Starting index of character where the scan should start.\n * @param {?} endIndex Ending index of character where the scan should end.\n * @param {?} separator\n * @return {?} Index after separator and surrounding whitespace.\n */\nfunction consumeSeparator(text, startIndex, endIndex, separator) {\n    startIndex = consumeWhitespace(text, startIndex, endIndex);\n    if (startIndex < endIndex) {\n        if (ngDevMode && text.charCodeAt(startIndex) !== separator) {\n            malformedStyleError(text, String.fromCharCode(separator), startIndex);\n        }\n        startIndex++;\n    }\n    return startIndex;\n}\n/**\n * Consumes style value honoring `url()` and `\"\"` text.\n *\n * @param {?} text Text to scan\n * @param {?} startIndex Starting index of character where the scan should start.\n * @param {?} endIndex Ending index of character where the scan should end.\n * @return {?} Index after last style value character.\n */\nfunction consumeStyleValue(text, startIndex, endIndex) {\n    /** @type {?} */\n    let ch1 = -1;\n    // 1st previous character\n    /** @type {?} */\n    let ch2 = -1;\n    // 2nd previous character\n    /** @type {?} */\n    let ch3 = -1;\n    // 3rd previous character\n    /** @type {?} */\n    let i = startIndex;\n    /** @type {?} */\n    let lastChIndex = i;\n    while (i < endIndex) {\n        /** @type {?} */\n        const ch = text.charCodeAt(i++);\n        if (ch === 59 /* SEMI_COLON */) {\n            return lastChIndex;\n        }\n        else if (ch === 34 /* DOUBLE_QUOTE */ || ch === 39 /* SINGLE_QUOTE */) {\n            lastChIndex = i = consumeQuotedText(text, ch, i, endIndex);\n        }\n        else if (startIndex ===\n            i - 4 && // We have seen only 4 characters so far \"URL(\" (Ignore \"foo_URL()\")\n            ch3 === 85 /* U */ &&\n            ch2 === 82 /* R */ && ch1 === 76 /* L */ && ch === 40 /* OPEN_PAREN */) {\n            lastChIndex = i = consumeQuotedText(text, 41 /* CLOSE_PAREN */, i, endIndex);\n        }\n        else if (ch > 32 /* SPACE */) {\n            // if we have a non-whitespace character then capture its location\n            lastChIndex = i;\n        }\n        ch3 = ch2;\n        ch2 = ch1;\n        ch1 = ch & -33 /* UPPER_CASE */;\n    }\n    return lastChIndex;\n}\n/**\n * Consumes all of the quoted characters.\n *\n * @param {?} text Text to scan\n * @param {?} quoteCharCode CharCode of either `\"` or `'` quote or `)` for `url(...)`.\n * @param {?} startIndex Starting index of character where the scan should start.\n * @param {?} endIndex Ending index of character where the scan should end.\n * @return {?} Index after quoted characters.\n */\nfunction consumeQuotedText(text, quoteCharCode, startIndex, endIndex) {\n    /** @type {?} */\n    let ch1 = -1;\n    // 1st previous character\n    /** @type {?} */\n    let index = startIndex;\n    while (index < endIndex) {\n        /** @type {?} */\n        const ch = text.charCodeAt(index++);\n        if (ch == quoteCharCode && ch1 !== 92 /* BACK_SLASH */) {\n            return index;\n        }\n        if (ch == 92 /* BACK_SLASH */ && ch1 === 92 /* BACK_SLASH */) {\n            // two back slashes cancel each other out. For example `\"\\\\\"` should properly end the\n            // quotation. (It should not assume that the last `\"` is escaped.)\n            ch1 = 0;\n        }\n        else {\n            ch1 = ch;\n        }\n    }\n    throw ngDevMode ? malformedStyleError(text, String.fromCharCode(quoteCharCode), endIndex) :\n        new Error();\n}\n/**\n * @param {?} text\n * @param {?} expecting\n * @param {?} index\n * @return {?}\n */\nfunction malformedStyleError(text, expecting, index) {\n    ngDevMode && assertEqual(typeof text === 'string', true, 'String expected here');\n    throw throwError(`Malformed style at location ${index} in string '` + text.substring(0, index) + '[>>' +\n        text.substring(index, index + 1) + '<<]' + text.substr(index + 1) +\n        `'. Expecting '${expecting}'.`);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/styling.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Sets the current style sanitizer function which will then be used\n * within all follow-up prop and map-based style binding instructions\n * for the given element.\n *\n * Note that once styling has been applied to the element (i.e. once\n * `advance(n)` is executed or the hostBindings/template function exits)\n * then the active `sanitizerFn` will be set to `null`. This means that\n * once styling is applied to another element then a another call to\n * `styleSanitizer` will need to be made.\n *\n * \\@codeGenApi\n * @param {?} sanitizer\n * @return {?}\n */\nfunction ɵɵstyleSanitizer(sanitizer) {\n    setCurrentStyleSanitizer(sanitizer);\n}\n/**\n * Update a style binding on an element with the provided value.\n *\n * If the style value is falsy then it will be removed from the element\n * (or assigned a different value depending if there are any styles placed\n * on the element with `styleMap` or any static styles that are\n * present from when the element was created with `styling`).\n *\n * Note that the styling element is updated as part of `stylingApply`.\n *\n * \\@codeGenApi\n * @param {?} prop A valid CSS property.\n * @param {?} value New value to write (`null` or an empty string to remove).\n * @param {?=} suffix Optional suffix. Used with scalar values to add unit such as `px`.\n *        Note that when a suffix is provided then the underlying sanitizer will\n *        be ignored.\n *\n * Note that this will apply the provided style value to the host element if this function is called\n * within a host binding function.\n *\n * @return {?}\n */\nfunction ɵɵstyleProp(prop, value, suffix) {\n    checkStylingProperty(prop, value, suffix, false);\n    return ɵɵstyleProp;\n}\n/**\n * Update a class binding on an element with the provided value.\n *\n * This instruction is meant to handle the `[class.foo]=\"exp\"` case and,\n * therefore, the class binding itself must already be allocated using\n * `styling` within the creation block.\n *\n * \\@codeGenApi\n * @param {?} className\n * @param {?} value A true/false value which will turn the class on or off.\n *\n * Note that this will apply the provided class value to the host element if this function\n * is called within a host binding function.\n *\n * @return {?}\n */\nfunction ɵɵclassProp(className, value) {\n    checkStylingProperty(className, value, null, true);\n    return ɵɵclassProp;\n}\n/**\n * Update style bindings using an object literal on an element.\n *\n * This instruction is meant to apply styling via the `[style]=\"exp\"` template bindings.\n * When styles are applied to the element they will then be updated with respect to\n * any styles/classes set via `styleProp`. If any styles are set to falsy\n * then they will be removed from the element.\n *\n * Note that the styling instruction will not be applied until `stylingApply` is called.\n *\n * \\@codeGenApi\n * @param {?} styles A key/value style map of the styles that will be applied to the given element.\n *        Any missing styles (that have already been applied to the element beforehand) will be\n *        removed (unset) from the element's styling.\n *\n * Note that this will apply the provided styleMap value to the host element if this function\n * is called within a host binding.\n *\n * @return {?}\n */\nfunction ɵɵstyleMap(styles) {\n    checkStylingMap(styleKeyValueArraySet, styleStringParser, styles, false);\n}\n/**\n * Parse text as style and add values to KeyValueArray.\n *\n * This code is pulled out to a separate function so that it can be tree shaken away if it is not\n * needed. It is only referenced from `ɵɵstyleMap`.\n *\n * @param {?} keyValueArray KeyValueArray to add parsed values to.\n * @param {?} text text to parse.\n * @return {?}\n */\nfunction styleStringParser(keyValueArray, text) {\n    for (let i = parseStyle(text); i >= 0; i = parseStyleNext(text, i)) {\n        styleKeyValueArraySet(keyValueArray, getLastParsedKey(text), getLastParsedValue(text));\n    }\n}\n/**\n * Update class bindings using an object literal or class-string on an element.\n *\n * This instruction is meant to apply styling via the `[class]=\"exp\"` template bindings.\n * When classes are applied to the element they will then be updated with\n * respect to any styles/classes set via `classProp`. If any\n * classes are set to falsy then they will be removed from the element.\n *\n * Note that the styling instruction will not be applied until `stylingApply` is called.\n * Note that this will the provided classMap value to the host element if this function is called\n * within a host binding.\n *\n * \\@codeGenApi\n * @param {?} classes A key/value map or string of CSS classes that will be added to the\n *        given element. Any missing classes (that have already been applied to the element\n *        beforehand) will be removed (unset) from the element's list of CSS classes.\n *\n * @return {?}\n */\nfunction ɵɵclassMap(classes) {\n    checkStylingMap(keyValueArraySet, classStringParser, classes, true);\n}\n/**\n * Parse text as class and add values to KeyValueArray.\n *\n * This code is pulled out to a separate function so that it can be tree shaken away if it is not\n * needed. It is only referenced from `ɵɵclassMap`.\n *\n * @param {?} keyValueArray KeyValueArray to add parsed values to.\n * @param {?} text text to parse.\n * @return {?}\n */\nfunction classStringParser(keyValueArray, text) {\n    for (let i = parseClassName(text); i >= 0; i = parseClassNameNext(text, i)) {\n        keyValueArraySet(keyValueArray, getLastParsedKey(text), true);\n    }\n}\n/**\n * Common code between `ɵɵclassProp` and `ɵɵstyleProp`.\n *\n * @param {?} prop property name.\n * @param {?} value binding value.\n * @param {?} suffixOrSanitizer suffix or sanitization function\n * @param {?} isClassBased `true` if `class` change (`false` if `style`)\n * @return {?}\n */\nfunction checkStylingProperty(prop, value, suffixOrSanitizer, isClassBased) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    // Styling instructions use 2 slots per binding.\n    // 1. one for the value / TStylingKey\n    // 2. one for the intermittent-value / TStylingRange\n    /** @type {?} */\n    const bindingIndex = incrementBindingIndex(2);\n    if (tView.firstUpdatePass) {\n        stylingFirstUpdatePass(tView, prop, bindingIndex, isClassBased);\n    }\n    if (value !== NO_CHANGE && bindingUpdated(lView, bindingIndex, value)) {\n        // This is a work around. Once PR#34480 lands the sanitizer is passed explicitly and this line\n        // can be removed.\n        /** @type {?} */\n        let styleSanitizer;\n        if (suffixOrSanitizer == null) {\n            if (styleSanitizer = getCurrentStyleSanitizer()) {\n                suffixOrSanitizer = (/** @type {?} */ (styleSanitizer));\n            }\n        }\n        /** @type {?} */\n        const tNode = (/** @type {?} */ (tView.data[getSelectedIndex() + HEADER_OFFSET]));\n        updateStyling(tView, tNode, lView, lView[RENDERER], prop, lView[bindingIndex + 1] = normalizeAndApplySuffixOrSanitizer(value, suffixOrSanitizer), isClassBased, bindingIndex);\n    }\n}\n/**\n * Common code between `ɵɵclassMap` and `ɵɵstyleMap`.\n *\n * @param {?} keyValueArraySet (See `keyValueArraySet` in \"util/array_utils\") Gets passed in as a\n * function so that\n *        `style` can pass in version which does sanitization. This is done for tree shaking\n *        purposes.\n * @param {?} stringParser Parser used to parse `value` if `string`. (Passed in as `style` and `class`\n *        have different parsers.)\n * @param {?} value bound value from application\n * @param {?} isClassBased `true` if `class` change (`false` if `style`)\n * @return {?}\n */\nfunction checkStylingMap(keyValueArraySet, stringParser, value, isClassBased) {\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const bindingIndex = incrementBindingIndex(2);\n    if (tView.firstUpdatePass) {\n        stylingFirstUpdatePass(tView, null, bindingIndex, isClassBased);\n    }\n    /** @type {?} */\n    const lView = getLView();\n    if (value !== NO_CHANGE && bindingUpdated(lView, bindingIndex, value)) {\n        // `getSelectedIndex()` should be here (rather than in instruction) so that it is guarded by the\n        // if so as not to read unnecessarily.\n        /** @type {?} */\n        const tNode = (/** @type {?} */ (tView.data[getSelectedIndex() + HEADER_OFFSET]));\n        if (hasStylingInputShadow(tNode, isClassBased) && !isInHostBindings(tView, bindingIndex)) {\n            if (ngDevMode) {\n                // verify that if we are shadowing then `TData` is appropriately marked so that we skip\n                // processing this binding in styling resolution.\n                /** @type {?} */\n                const tStylingKey = tView.data[bindingIndex];\n                assertEqual(Array.isArray(tStylingKey) ? tStylingKey[1] : tStylingKey, false, 'Styling linked list shadow input should be marked as \\'false\\'');\n            }\n            // VE does not concatenate the static portion like we are doing here.\n            // Instead VE just ignores the static completely if dynamic binding is present.\n            // Because of locality we have already set the static portion because we don't know if there\n            // is a dynamic portion until later. If we would ignore the static portion it would look like\n            // the binding has removed it. This would confuse `[ngStyle]`/`[ngClass]` to do the wrong\n            // thing as it would think that the static portion was removed. For this reason we\n            // concatenate it so that `[ngStyle]`/`[ngClass]`  can continue to work on changed.\n            /** @type {?} */\n            let staticPrefix = isClassBased ? tNode.classesWithoutHost : tNode.stylesWithoutHost;\n            ngDevMode && isClassBased === false && staticPrefix !== null &&\n                assertEqual(staticPrefix.endsWith(';'), true, 'Expecting static portion to end with \\';\\'');\n            if (staticPrefix !== null) {\n                // We want to make sure that falsy values of `value` become empty strings.\n                value = concatStringsWithSpace(staticPrefix, value ? value : '');\n            }\n            // Given `<div [style] my-dir>` such that `my-dir` has `@Input('style')`.\n            // This takes over the `[style]` binding. (Same for `[class]`)\n            setDirectiveInputsWhichShadowsStyling(tView, tNode, lView, value, isClassBased);\n        }\n        else {\n            updateStylingMap(tView, tNode, lView, lView[RENDERER], lView[bindingIndex + 1], lView[bindingIndex + 1] = toStylingKeyValueArray(keyValueArraySet, stringParser, value), isClassBased, bindingIndex);\n        }\n    }\n}\n/**\n * Determines when the binding is in `hostBindings` section\n *\n * @param {?} tView Current `TView`\n * @param {?} bindingIndex index of binding which we would like if it is in `hostBindings`\n * @return {?}\n */\nfunction isInHostBindings(tView, bindingIndex) {\n    // All host bindings are placed after the expando section.\n    return bindingIndex >= tView.expandoStartIndex;\n}\n/**\n * Collects the necessary information to insert the binding into a linked list of style bindings\n * using `insertTStylingBinding`.\n *\n * @param {?} tView `TView` where the binding linked list will be stored.\n * @param {?} tStylingKey Property/key of the binding.\n * @param {?} bindingIndex Index of binding associated with the `prop`\n * @param {?} isClassBased `true` if `class` change (`false` if `style`)\n * @return {?}\n */\nfunction stylingFirstUpdatePass(tView, tStylingKey, bindingIndex, isClassBased) {\n    ngDevMode && assertFirstUpdatePass(tView);\n    /** @type {?} */\n    const tData = tView.data;\n    if (tData[bindingIndex + 1] === null) {\n        // The above check is necessary because we don't clear first update pass until first successful\n        // (no exception) template execution. This prevents the styling instruction from double adding\n        // itself to the list.\n        // `getSelectedIndex()` should be here (rather than in instruction) so that it is guarded by the\n        // if so as not to read unnecessarily.\n        /** @type {?} */\n        const tNode = (/** @type {?} */ (tData[getSelectedIndex() + HEADER_OFFSET]));\n        /** @type {?} */\n        const isHostBindings = isInHostBindings(tView, bindingIndex);\n        if (hasStylingInputShadow(tNode, isClassBased) && tStylingKey === null && !isHostBindings) {\n            // `tStylingKey === null` implies that we are either `[style]` or `[class]` binding.\n            // If there is a directive which uses `@Input('style')` or `@Input('class')` than\n            // we need to neutralize this binding since that directive is shadowing it.\n            // We turn this into a noop by setting the key to `false`\n            tStylingKey = false;\n        }\n        tStylingKey = wrapInStaticStylingKey(tData, tNode, tStylingKey, isClassBased);\n        insertTStylingBinding(tData, tNode, tStylingKey, bindingIndex, isHostBindings, isClassBased);\n    }\n}\n/**\n * Adds static styling information to the binding if applicable.\n *\n * The linked list of styles not only stores the list and keys, but also stores static styling\n * information on some of the keys. This function determines if the key should contain the styling\n * information and computes it.\n *\n * See `TStylingStatic` for more details.\n *\n * @param {?} tData `TData` where the linked list is stored.\n * @param {?} tNode `TNode` for which the styling is being computed.\n * @param {?} stylingKey `TStylingKeyPrimitive` which may need to be wrapped into `TStylingKey`\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @return {?}\n */\nfunction wrapInStaticStylingKey(tData, tNode, stylingKey, isClassBased) {\n    /** @type {?} */\n    const hostDirectiveDef = getCurrentDirectiveDef(tData);\n    /** @type {?} */\n    let residual = isClassBased ? tNode.residualClasses : tNode.residualStyles;\n    if (hostDirectiveDef === null) {\n        // We are in template node.\n        // If template node already had styling instruction then it has already collected the static\n        // styling and there is no need to collect them again. We know that we are the first styling\n        // instruction because the `TNode.*Bindings` points to 0 (nothing has been inserted yet).\n        /** @type {?} */\n        const isFirstStylingInstructionInTemplate = (/** @type {?} */ ((/** @type {?} */ ((isClassBased ? tNode.classBindings : tNode.styleBindings))))) === 0;\n        if (isFirstStylingInstructionInTemplate) {\n            // It would be nice to be able to get the statics from `mergeAttrs`, however, at this point\n            // they are already merged and it would not be possible to figure which property belongs where\n            // in the priority.\n            stylingKey = collectStylingFromDirectives(null, tData, tNode, stylingKey, isClassBased);\n            stylingKey = collectStylingFromTAttrs(stylingKey, tNode.attrs, isClassBased);\n            // We know that if we have styling binding in template we can't have residual.\n            residual = null;\n        }\n    }\n    else {\n        // We are in host binding node and there was no binding instruction in template node.\n        // This means that we need to compute the residual.\n        /** @type {?} */\n        const directiveStylingLast = tNode.directiveStylingLast;\n        /** @type {?} */\n        const isFirstStylingInstructionInHostBinding = directiveStylingLast === -1 || tData[directiveStylingLast] !== hostDirectiveDef;\n        if (isFirstStylingInstructionInHostBinding) {\n            stylingKey =\n                collectStylingFromDirectives(hostDirectiveDef, tData, tNode, stylingKey, isClassBased);\n            if (residual === null) {\n                // - If `null` than either:\n                //    - Template styling instruction already ran and it has consumed the static\n                //      styling into its `TStylingKey` and so there is no need to update residual. Instead\n                //      we need to update the `TStylingKey` associated with the first template node\n                //      instruction. OR\n                //    - Some other styling instruction ran and determined that there are no residuals\n                /** @type {?} */\n                let templateStylingKey = getTemplateHeadTStylingKey(tData, tNode, isClassBased);\n                if (templateStylingKey !== undefined && Array.isArray(templateStylingKey)) {\n                    // Only recompute if `templateStylingKey` had static values. (If no static value found\n                    // then there is nothing to do since this operation can only produce less static keys, not\n                    // more.)\n                    templateStylingKey = collectStylingFromDirectives(null, tData, tNode, templateStylingKey[1] /* unwrap previous statics */, isClassBased);\n                    templateStylingKey =\n                        collectStylingFromTAttrs(templateStylingKey, tNode.attrs, isClassBased);\n                    setTemplateHeadTStylingKey(tData, tNode, isClassBased, templateStylingKey);\n                }\n            }\n            else {\n                // We only need to recompute residual if it is not `null`.\n                // - If existing residual (implies there was no template styling). This means that some of\n                //   the statics may have moved from the residual to the `stylingKey` and so we have to\n                //   recompute.\n                // - If `undefined` this is the first time we are running.\n                residual = collectResidual(tData, tNode, isClassBased);\n            }\n        }\n    }\n    if (residual !== undefined) {\n        isClassBased ? (tNode.residualClasses = residual) : (tNode.residualStyles = residual);\n    }\n    return stylingKey;\n}\n/**\n * Retrieve the `TStylingKey` for the template styling instruction.\n *\n * This is needed since `hostBinding` styling instructions are inserted after the template\n * instruction. While the template instruction needs to update the residual in `TNode` the\n * `hostBinding` instructions need to update the `TStylingKey` of the template instruction because\n * the template instruction is downstream from the `hostBindings` instructions.\n *\n * @param {?} tData `TData` where the linked list is stored.\n * @param {?} tNode `TNode` for which the styling is being computed.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @return {?} `TStylingKey` if found or `undefined` if not found.\n */\nfunction getTemplateHeadTStylingKey(tData, tNode, isClassBased) {\n    /** @type {?} */\n    const bindings = isClassBased ? tNode.classBindings : tNode.styleBindings;\n    if (getTStylingRangeNext(bindings) === 0) {\n        // There does not seem to be a styling instruction in the `template`.\n        return undefined;\n    }\n    return (/** @type {?} */ (tData[getTStylingRangePrev(bindings)]));\n}\n/**\n * Update the `TStylingKey` of the first template instruction in `TNode`.\n *\n * Logically `hostBindings` styling instructions are of lower priority than that of the template.\n * However, they execute after the template styling instructions. This means that they get inserted\n * in front of the template styling instructions.\n *\n * If we have a template styling instruction and a new `hostBindings` styling instruction is\n * executed it means that it may need to steal static fields from the template instruction. This\n * method allows us to update the first template instruction `TStylingKey` with a new value.\n *\n * Assume:\n * ```\n * <div my-dir style=\"color: red\" [style.color]=\"tmplExp\"></div>\n *\n * \\@Directive({\n *   host: {\n *     'style': 'width: 100px',\n *     '[style.color]': 'dirExp',\n *   }\n * })\n * class MyDir {}\n * ```\n *\n * when `[style.color]=\"tmplExp\"` executes it creates this data structure.\n * ```\n *  ['', 'color', 'color', 'red', 'width', '100px'],\n * ```\n *\n * The reason for this is that the template instruction does not know if there are styling\n * instructions and must assume that there are none and must collect all of the static styling.\n * (both\n * `color' and 'width`)\n *\n * When `'[style.color]': 'dirExp',` executes we need to insert a new data into the linked list.\n * ```\n *  ['', 'color', 'width', '100px'],  // newly inserted\n *  ['', 'color', 'color', 'red', 'width', '100px'], // this is wrong\n * ```\n *\n * Notice that the template statics is now wrong as it incorrectly contains `width` so we need to\n * update it like so:\n * ```\n *  ['', 'color', 'width', '100px'],\n *  ['', 'color', 'color', 'red'],    // UPDATE\n * ```\n *\n * @param {?} tData `TData` where the linked list is stored.\n * @param {?} tNode `TNode` for which the styling is being computed.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @param {?} tStylingKey New `TStylingKey` which is replacing the old one.\n * @return {?}\n */\nfunction setTemplateHeadTStylingKey(tData, tNode, isClassBased, tStylingKey) {\n    /** @type {?} */\n    const bindings = isClassBased ? tNode.classBindings : tNode.styleBindings;\n    ngDevMode &&\n        assertNotEqual(getTStylingRangeNext(bindings), 0, 'Expecting to have at least one template styling binding.');\n    tData[getTStylingRangePrev(bindings)] = tStylingKey;\n}\n/**\n * Collect all static values after the current `TNode.directiveStylingLast` index.\n *\n * Collect the remaining styling information which has not yet been collected by an existing\n * styling instruction.\n *\n * @param {?} tData `TData` where the `DirectiveDefs` are stored.\n * @param {?} tNode `TNode` which contains the directive range.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @return {?}\n */\nfunction collectResidual(tData, tNode, isClassBased) {\n    /** @type {?} */\n    let residual = undefined;\n    /** @type {?} */\n    const directiveEnd = tNode.directiveEnd;\n    ngDevMode &&\n        assertNotEqual(tNode.directiveStylingLast, -1, 'By the time this function gets called at least one hostBindings-node styling instruction must have executed.');\n    // We add `1 + tNode.directiveStart` because we need to skip the current directive (as we are\n    // collecting things after the last `hostBindings` directive which had a styling instruction.)\n    for (let i = 1 + tNode.directiveStylingLast; i < directiveEnd; i++) {\n        /** @type {?} */\n        const attrs = ((/** @type {?} */ (tData[i]))).hostAttrs;\n        residual = (/** @type {?} */ (collectStylingFromTAttrs(residual, attrs, isClassBased)));\n    }\n    return (/** @type {?} */ (collectStylingFromTAttrs(residual, tNode.attrs, isClassBased)));\n}\n/**\n * Collect the static styling information with lower priority than `hostDirectiveDef`.\n *\n * (This is opposite of residual styling.)\n *\n * @param {?} hostDirectiveDef `DirectiveDef` for which we want to collect lower priority static\n *        styling. (Or `null` if template styling)\n * @param {?} tData `TData` where the linked list is stored.\n * @param {?} tNode `TNode` for which the styling is being computed.\n * @param {?} stylingKey Existing `TStylingKey` to update or wrap.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @return {?}\n */\nfunction collectStylingFromDirectives(hostDirectiveDef, tData, tNode, stylingKey, isClassBased) {\n    // We need to loop because there can be directives which have `hostAttrs` but don't have\n    // `hostBindings` so this loop catches up to the current directive..\n    /** @type {?} */\n    let currentDirective = null;\n    /** @type {?} */\n    const directiveEnd = tNode.directiveEnd;\n    /** @type {?} */\n    let directiveStylingLast = tNode.directiveStylingLast;\n    if (directiveStylingLast === -1) {\n        directiveStylingLast = tNode.directiveStart;\n    }\n    else {\n        directiveStylingLast++;\n    }\n    while (directiveStylingLast < directiveEnd) {\n        currentDirective = (/** @type {?} */ (tData[directiveStylingLast]));\n        ngDevMode && assertDefined(currentDirective, 'expected to be defined');\n        stylingKey = collectStylingFromTAttrs(stylingKey, currentDirective.hostAttrs, isClassBased);\n        if (currentDirective === hostDirectiveDef)\n            break;\n        directiveStylingLast++;\n    }\n    if (hostDirectiveDef !== null) {\n        // we only advance the styling cursor if we are collecting data from host bindings.\n        // Template executes before host bindings and so if we would update the index,\n        // host bindings would not get their statics.\n        tNode.directiveStylingLast = directiveStylingLast;\n    }\n    return stylingKey;\n}\n/**\n * Convert `TAttrs` into `TStylingStatic`.\n *\n * @param {?} stylingKey existing `TStylingKey` to update or wrap.\n * @param {?} attrs `TAttributes` to process.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @return {?}\n */\nfunction collectStylingFromTAttrs(stylingKey, attrs, isClassBased) {\n    /** @type {?} */\n    const desiredMarker = isClassBased ? 1 /* Classes */ : 2 /* Styles */;\n    /** @type {?} */\n    let currentMarker = -1 /* ImplicitAttributes */;\n    if (attrs !== null) {\n        for (let i = 0; i < attrs.length; i++) {\n            /** @type {?} */\n            const item = (/** @type {?} */ (attrs[i]));\n            if (typeof item === 'number') {\n                currentMarker = item;\n            }\n            else {\n                if (currentMarker === desiredMarker) {\n                    if (!Array.isArray(stylingKey)) {\n                        stylingKey = stylingKey === undefined ? [] : (/** @type {?} */ (['', stylingKey]));\n                    }\n                    keyValueArraySet((/** @type {?} */ (stylingKey)), item, isClassBased ? true : attrs[++i]);\n                }\n            }\n        }\n    }\n    return stylingKey === undefined ? null : stylingKey;\n}\n/**\n * Convert user input to `KeyValueArray`.\n *\n * This function takes user input which could be `string`, Object literal, or iterable and converts\n * it into a consistent representation. The output of this is `KeyValueArray` (which is an array\n * where\n * even indexes contain keys and odd indexes contain values for those keys).\n *\n * The advantage of converting to `KeyValueArray` is that we can perform diff in an input\n * independent\n * way.\n * (ie we can compare `foo bar` to `['bar', 'baz'] and determine a set of changes which need to be\n * applied)\n *\n * The fact that `KeyValueArray` is sorted is very important because it allows us to compute the\n * difference in linear fashion without the need to allocate any additional data.\n *\n * For example if we kept this as a `Map` we would have to iterate over previous `Map` to determine\n * which values need to be deleted, over the new `Map` to determine additions, and we would have to\n * keep additional `Map` to keep track of duplicates or items which have not yet been visited.\n *\n * @param {?} keyValueArraySet (See `keyValueArraySet` in \"util/array_utils\") Gets passed in as a\n * function so that\n *        `style` can pass in version which does sanitization. This is done for tree shaking\n *        purposes.\n * @param {?} stringParser The parser is passed in so that it will be tree shakable. See\n *        `styleStringParser` and `classStringParser`\n * @param {?} value The value to parse/convert to `KeyValueArray`\n * @return {?}\n */\nfunction toStylingKeyValueArray(keyValueArraySet, stringParser, value) {\n    if (value == null /*|| value === undefined */ || value === '')\n        return (/** @type {?} */ (EMPTY_ARRAY$3));\n    /** @type {?} */\n    const styleKeyValueArray = (/** @type {?} */ ([]));\n    /** @type {?} */\n    const unwrappedValue = (/** @type {?} */ (unwrapSafeValue(value)));\n    if (Array.isArray(unwrappedValue)) {\n        for (let i = 0; i < unwrappedValue.length; i++) {\n            keyValueArraySet(styleKeyValueArray, unwrappedValue[i], true);\n        }\n    }\n    else if (typeof unwrappedValue === 'object') {\n        for (const key in unwrappedValue) {\n            if (unwrappedValue.hasOwnProperty(key)) {\n                keyValueArraySet(styleKeyValueArray, key, unwrappedValue[key]);\n            }\n        }\n    }\n    else if (typeof unwrappedValue === 'string') {\n        stringParser(styleKeyValueArray, unwrappedValue);\n    }\n    else {\n        ngDevMode &&\n            throwError('Unsupported styling type ' + typeof unwrappedValue + ': ' + unwrappedValue);\n    }\n    return styleKeyValueArray;\n}\n/**\n * Set a `value` for a `key` taking style sanitization into account.\n *\n * See: `keyValueArraySet` for details\n *\n * @param {?} keyValueArray KeyValueArray to add to.\n * @param {?} key Style key to add. (This key will be checked if it needs sanitization)\n * @param {?} value The value to set (If key needs sanitization it will be sanitized)\n * @return {?}\n */\nfunction styleKeyValueArraySet(keyValueArray, key, value) {\n    if (stylePropNeedsSanitization(key)) {\n        value = ɵɵsanitizeStyle(value);\n    }\n    keyValueArraySet(keyValueArray, key, value);\n}\n/**\n * Update map based styling.\n *\n * Map based styling could be anything which contains more than one binding. For example `string`,\n * or object literal. Dealing with all of these types would complicate the logic so\n * instead this function expects that the complex input is first converted into normalized\n * `KeyValueArray`. The advantage of normalization is that we get the values sorted, which makes it\n * very cheap to compute deltas between the previous and current value.\n *\n * @param {?} tView Associated `TView.data` contains the linked list of binding priorities.\n * @param {?} tNode `TNode` where the binding is located.\n * @param {?} lView `LView` contains the values associated with other styling binding at this `TNode`.\n * @param {?} renderer Renderer to use if any updates.\n * @param {?} oldKeyValueArray Previous value represented as `KeyValueArray`\n * @param {?} newKeyValueArray Current value represented as `KeyValueArray`\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @param {?} bindingIndex Binding index of the binding.\n * @return {?}\n */\nfunction updateStylingMap(tView, tNode, lView, renderer, oldKeyValueArray, newKeyValueArray, isClassBased, bindingIndex) {\n    if ((/** @type {?} */ (oldKeyValueArray)) === NO_CHANGE) {\n        // On first execution the oldKeyValueArray is NO_CHANGE => treat it as empty KeyValueArray.\n        oldKeyValueArray = (/** @type {?} */ (EMPTY_ARRAY$3));\n    }\n    /** @type {?} */\n    let oldIndex = 0;\n    /** @type {?} */\n    let newIndex = 0;\n    /** @type {?} */\n    let oldKey = 0 < oldKeyValueArray.length ? oldKeyValueArray[0] : null;\n    /** @type {?} */\n    let newKey = 0 < newKeyValueArray.length ? newKeyValueArray[0] : null;\n    while (oldKey !== null || newKey !== null) {\n        ngDevMode && assertLessThan(oldIndex, 999, 'Are we stuck in infinite loop?');\n        ngDevMode && assertLessThan(newIndex, 999, 'Are we stuck in infinite loop?');\n        /** @type {?} */\n        const oldValue = oldIndex < oldKeyValueArray.length ? oldKeyValueArray[oldIndex + 1] : undefined;\n        /** @type {?} */\n        const newValue = newIndex < newKeyValueArray.length ? newKeyValueArray[newIndex + 1] : undefined;\n        /** @type {?} */\n        let setKey = null;\n        /** @type {?} */\n        let setValue = undefined;\n        if (oldKey === newKey) {\n            // UPDATE: Keys are equal => new value is overwriting old value.\n            oldIndex += 2;\n            newIndex += 2;\n            if (oldValue !== newValue) {\n                setKey = newKey;\n                setValue = newValue;\n            }\n        }\n        else if (newKey === null || oldKey !== null && oldKey < (/** @type {?} */ (newKey))) {\n            // DELETE: oldKey key is missing or we did not find the oldKey in the newValue\n            // (because the keyValueArray is sorted and `newKey` is found later alphabetically).\n            // `\"background\" < \"color\"` so we need to delete `\"background\"` because it is not found in the\n            // new array.\n            oldIndex += 2;\n            setKey = oldKey;\n        }\n        else {\n            // CREATE: newKey's is earlier alphabetically than oldKey's (or no oldKey) => we have new key.\n            // `\"color\" > \"background\"` so we need to add `color` because it is in new array but not in\n            // old array.\n            ngDevMode && assertDefined(newKey, 'Expecting to have a valid key');\n            newIndex += 2;\n            setKey = newKey;\n            setValue = newValue;\n        }\n        if (setKey !== null) {\n            updateStyling(tView, tNode, lView, renderer, setKey, setValue, isClassBased, bindingIndex);\n        }\n        oldKey = oldIndex < oldKeyValueArray.length ? oldKeyValueArray[oldIndex] : null;\n        newKey = newIndex < newKeyValueArray.length ? newKeyValueArray[newIndex] : null;\n    }\n}\n/**\n * Update a simple (property name) styling.\n *\n * This function takes `prop` and updates the DOM to that value. The function takes the binding\n * value as well as binding priority into consideration to determine which value should be written\n * to DOM. (For example it may be determined that there is a higher priority overwrite which blocks\n * the DOM write, or if the value goes to `undefined` a lower priority overwrite may be consulted.)\n *\n * @param {?} tView Associated `TView.data` contains the linked list of binding priorities.\n * @param {?} tNode `TNode` where the binding is located.\n * @param {?} lView `LView` contains the values associated with other styling binding at this `TNode`.\n * @param {?} renderer Renderer to use if any updates.\n * @param {?} prop Either style property name or a class name.\n * @param {?} value Either style value for `prop` or `true`/`false` if `prop` is class.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @param {?} bindingIndex Binding index of the binding.\n * @return {?}\n */\nfunction updateStyling(tView, tNode, lView, renderer, prop, value, isClassBased, bindingIndex) {\n    if (tNode.type !== 3 /* Element */) {\n        // It is possible to have styling on non-elements (such as ng-container).\n        // This is rare, but it does happen. In such a case, just ignore the binding.\n        return;\n    }\n    /** @type {?} */\n    const tData = tView.data;\n    /** @type {?} */\n    const tRange = (/** @type {?} */ (tData[bindingIndex + 1]));\n    /** @type {?} */\n    const higherPriorityValue = getTStylingRangeNextDuplicate(tRange) ?\n        findStylingValue(tData, tNode, lView, prop, getTStylingRangeNext(tRange), isClassBased) :\n        undefined;\n    if (!isStylingValuePresent(higherPriorityValue)) {\n        // We don't have a next duplicate, or we did not find a duplicate value.\n        if (!isStylingValuePresent(value)) {\n            // We should delete current value or restore to lower priority value.\n            if (getTStylingRangePrevDuplicate(tRange)) {\n                // We have a possible prev duplicate, let's retrieve it.\n                value = findStylingValue(tData, null, lView, prop, bindingIndex, isClassBased);\n            }\n        }\n        /** @type {?} */\n        const rNode = (/** @type {?} */ (getNativeByIndex(getSelectedIndex(), lView)));\n        applyStyling(renderer, isClassBased, rNode, prop, value);\n    }\n}\n/**\n * Search for styling value with higher priority which is overwriting current value, or a\n * value of lower priority to which we should fall back if the value is `undefined`.\n *\n * When value is being applied at a location, related values need to be consulted.\n * - If there is a higher priority binding, we should be using that one instead.\n *   For example `<div  [style]=\"{color:exp1}\" [style.color]=\"exp2\">` change to `exp1`\n *   requires that we check `exp2` to see if it is set to value other than `undefined`.\n * - If there is a lower priority binding and we are changing to `undefined`\n *   For example `<div  [style]=\"{color:exp1}\" [style.color]=\"exp2\">` change to `exp2` to\n *   `undefined` requires that we check `exp1` (and static values) and use that as new value.\n *\n * NOTE: The styling stores two values.\n * 1. The raw value which came from the application is stored at `index + 0` location. (This value\n *    is used for dirty checking).\n * 2. The normalized value (converted to `KeyValueArray` if map and sanitized) is stored at `index +\n * 1`.\n *    The advantage of storing the sanitized value is that once the value is written we don't need\n *    to worry about sanitizing it later or keeping track of the sanitizer.\n *\n * @param {?} tData `TData` used for traversing the priority.\n * @param {?} tNode `TNode` to use for resolving static styling. Also controls search direction.\n *   - `TNode` search next and quit as soon as `isStylingValuePresent(value)` is true.\n *      If no value found consult `tNode.residualStyle`/`tNode.residualClass` for default value.\n *   - `null` search prev and go all the way to end. Return last value where\n *     `isStylingValuePresent(value)` is true.\n * @param {?} lView `LView` used for retrieving the actual values.\n * @param {?} prop Property which we are interested in.\n * @param {?} index Starting index in the linked list of styling bindings where the search should start.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @return {?}\n */\nfunction findStylingValue(tData, tNode, lView, prop, index, isClassBased) {\n    // `TNode` to use for resolving static styling. Also controls search direction.\n    //   - `TNode` search next and quit as soon as `isStylingValuePresent(value)` is true.\n    //      If no value found consult `tNode.residualStyle`/`tNode.residualClass` for default value.\n    //   - `null` search prev and go all the way to end. Return last value where\n    //     `isStylingValuePresent(value)` is true.\n    /** @type {?} */\n    const isPrevDirection = tNode === null;\n    /** @type {?} */\n    let value = undefined;\n    while (index > 0) {\n        /** @type {?} */\n        const rawKey = (/** @type {?} */ (tData[index]));\n        /** @type {?} */\n        const containsStatics = Array.isArray(rawKey);\n        // Unwrap the key if we contain static values.\n        /** @type {?} */\n        const key = containsStatics ? ((/** @type {?} */ (rawKey)))[1] : rawKey;\n        /** @type {?} */\n        const isStylingMap = key === null;\n        /** @type {?} */\n        let valueAtLViewIndex = lView[index + 1];\n        if (valueAtLViewIndex === NO_CHANGE) {\n            // In firstUpdatePass the styling instructions create a linked list of styling.\n            // On subsequent passes it is possible for a styling instruction to try to read a binding\n            // which\n            // has not yet executed. In that case we will find `NO_CHANGE` and we should assume that\n            // we have `undefined` (or empty array in case of styling-map instruction) instead. This\n            // allows the resolution to apply the value (which may later be overwritten when the\n            // binding actually executes.)\n            valueAtLViewIndex = isStylingMap ? EMPTY_ARRAY$3 : undefined;\n        }\n        /** @type {?} */\n        let currentValue = isStylingMap ? keyValueArrayGet(valueAtLViewIndex, prop) :\n            key === prop ? valueAtLViewIndex : undefined;\n        if (containsStatics && !isStylingValuePresent(currentValue)) {\n            currentValue = keyValueArrayGet((/** @type {?} */ (rawKey)), prop);\n        }\n        if (isStylingValuePresent(currentValue)) {\n            value = currentValue;\n            if (isPrevDirection) {\n                return value;\n            }\n        }\n        /** @type {?} */\n        const tRange = (/** @type {?} */ (tData[index + 1]));\n        index = isPrevDirection ? getTStylingRangePrev(tRange) : getTStylingRangeNext(tRange);\n    }\n    if (tNode !== null) {\n        // in case where we are going in next direction AND we did not find anything, we need to\n        // consult residual styling\n        /** @type {?} */\n        let residual = isClassBased ? tNode.residualClasses : tNode.residualStyles;\n        if (residual != null /** OR residual !=== undefined */) {\n            value = keyValueArrayGet((/** @type {?} */ (residual)), prop);\n        }\n    }\n    return value;\n}\n/**\n * Determines if the binding value should be used (or if the value is 'undefined' and hence priority\n * resolution should be used.)\n *\n * @param {?} value Binding style value.\n * @return {?}\n */\nfunction isStylingValuePresent(value) {\n    // Currently only `undefined` value is considered non-binding. That is `undefined` says I don't\n    // have an opinion as to what this binding should be and you should consult other bindings by\n    // priority to determine the valid value.\n    // This is extracted into a single function so that we have a single place to control this.\n    return value !== undefined;\n}\n/**\n * Sanitizes or adds suffix to the value.\n *\n * If value is `null`/`undefined` no suffix is added\n * @param {?} value\n * @param {?} suffixOrSanitizer\n * @return {?}\n */\nfunction normalizeAndApplySuffixOrSanitizer(value, suffixOrSanitizer) {\n    if (value == null /** || value === undefined */) {\n        // do nothing\n    }\n    else if (typeof suffixOrSanitizer === 'function') {\n        // sanitize the value.\n        value = suffixOrSanitizer(value);\n    }\n    else if (typeof suffixOrSanitizer === 'string') {\n        value = value + suffixOrSanitizer;\n    }\n    else if (typeof value === 'object') {\n        value = stringify(unwrapSafeValue(value));\n    }\n    return value;\n}\n/**\n * Tests if the `TNode` has input shadow.\n *\n * An input shadow is when a directive steals (shadows) the input by using `\\@Input('style')` or\n * `\\@Input('class')` as input.\n *\n * @param {?} tNode `TNode` which we would like to see if it has shadow.\n * @param {?} isClassBased `true` if `class` (`false` if `style`)\n * @return {?}\n */\nfunction hasStylingInputShadow(tNode, isClassBased) {\n    return (tNode.flags & (isClassBased ? 16 /* hasClassInput */ : 32 /* hasStyleInput */)) !== 0;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/text.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Create static text node\n *\n * \\@codeGenApi\n * @param {?} index Index of the node in the data array\n * @param {?=} value Static string value to write.\n *\n * @return {?}\n */\nfunction ɵɵtext(index, value = '') {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const adjustedIndex = index + HEADER_OFFSET;\n    ngDevMode &&\n        assertEqual(getBindingIndex(), tView.bindingStartIndex, 'text nodes should be created before any bindings');\n    ngDevMode && assertDataInRange(lView, adjustedIndex);\n    /** @type {?} */\n    const tNode = tView.firstCreatePass ?\n        getOrCreateTNode(tView, lView[T_HOST], index, 3 /* Element */, null, null) :\n        (/** @type {?} */ (tView.data[adjustedIndex]));\n    /** @type {?} */\n    const textNative = lView[adjustedIndex] = createTextNode(value, lView[RENDERER]);\n    appendChild(tView, lView, textNative, tNode);\n    // Text nodes are self closing.\n    setPreviousOrParentTNode(tNode, false);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/text_interpolation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n *\n * Update text content with a lone bound value\n *\n * Used when a text node has 1 interpolated value in it, an no additional text\n * surrounds that interpolated value:\n *\n * ```html\n * <div>{{v0}}</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate(v0);\n * ```\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} v0\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate(v0) {\n    ɵɵtextInterpolate1('', v0, '');\n    return ɵɵtextInterpolate;\n}\n/**\n *\n * Update text content with single bound value surrounded by other text.\n *\n * Used when a text node has 1 interpolated value in it:\n *\n * ```html\n * <div>prefix{{v0}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate1('prefix', v0, 'suffix');\n * ```\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} suffix\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate1(prefix, v0, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation1(lView, prefix, v0, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate1;\n}\n/**\n *\n * Update text content with 2 bound values surrounded by other text.\n *\n * Used when a text node has 2 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate2('prefix', v0, '-', v1, 'suffix');\n * ```\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} suffix\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate2(prefix, v0, i0, v1, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate2;\n}\n/**\n *\n * Update text content with 3 bound values surrounded by other text.\n *\n * Used when a text node has 3 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate3(\n * 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} suffix\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate3(prefix, v0, i0, v1, i1, v2, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate3;\n}\n/**\n *\n * Update text content with 4 bound values surrounded by other text.\n *\n * Used when a text node has 4 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate4(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n * @see ɵɵtextInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} suffix\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate4(prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate4;\n}\n/**\n *\n * Update text content with 5 bound values surrounded by other text.\n *\n * Used when a text node has 5 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate5(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} suffix\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate5(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate5;\n}\n/**\n *\n * Update text content with 6 bound values surrounded by other text.\n *\n * Used when a text node has 6 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate6(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change. \\@returns itself, so that it may be chained.\n * @param {?} suffix\n * @return {?}\n */\nfunction ɵɵtextInterpolate6(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate6;\n}\n/**\n *\n * Update text content with 7 bound values surrounded by other text.\n *\n * Used when a text node has 7 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate7(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} i4\n * @param {?} v5\n * @param {?} i5\n * @param {?} v6\n * @param {?} suffix\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate7(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate7;\n}\n/**\n *\n * Update text content with 8 bound values surrounded by other text.\n *\n * Used when a text node has 8 interpolated values in it:\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolate8(\n *  'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n * @see textInterpolateV\n * \\@codeGenApi\n * @param {?} prefix\n * @param {?} v0\n * @param {?} i0\n * @param {?} v1\n * @param {?} i1\n * @param {?} v2\n * @param {?} i2\n * @param {?} v3\n * @param {?} i3\n * @param {?} v4\n * @param {?} i4\n * @param {?} v5\n * @param {?} i5\n * @param {?} v6\n * @param {?} i6\n * @param {?} v7\n * @param {?} suffix\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolate8(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolate8;\n}\n/**\n * Update text content with 9 or more bound values other surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div>prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix</div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵtextInterpolateV(\n *  ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n * .\n * \\@codeGenApi\n * @param {?} values The collection of values and the strings in between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n *\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵtextInterpolateV(values) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolated = interpolationV(lView, values);\n    if (interpolated !== NO_CHANGE) {\n        textBindingInternal(lView, getSelectedIndex(), (/** @type {?} */ (interpolated)));\n    }\n    return ɵɵtextInterpolateV;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/class_map_interpolation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n *\n * Update an interpolated class on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate1('prefix', v0, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate1(prefix, v0, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate2('prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate2(prefix, v0, i0, v1, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate3(\n * 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate3(prefix, v0, i0, v1, i1, v2, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate4(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate4(prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate5(\n * 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate5(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate6(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate6(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate7(\n *    'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate7(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n *\n * Update an interpolated class on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolate8(\n *  'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} i6 Static value used for concatenation only.\n * @param {?} v7 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵclassMapInterpolate8(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n/**\n * Update an interpolated class on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  class=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵclassMapInterpolateV(\n *  ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n * .\n * \\@codeGenApi\n * @param {?} values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @return {?}\n */\nfunction ɵɵclassMapInterpolateV(values) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolationV(lView, values);\n    checkStylingMap(keyValueArraySet, classStringParser, interpolatedValue, true);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/style_map_interpolation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n *\n * Update an interpolated style on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div style=\"key: {{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate1('key: ', v0, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate1(prefix, v0, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate2('key: ', v0, '; key1: ', v1, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate2(prefix, v0, i0, v1, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key2: {{v1}}; key2: {{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate3(\n *     'key: ', v0, '; key1: ', v1, '; key2: ', v2, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate3(prefix, v0, i0, v1, i1, v2, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate4(\n *     'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate4(prefix, v0, i0, v1, i1, v2, i2, v3, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate5(\n *     'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate5(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}};\n *             key5: {{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate6(\n *    'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *    'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate6(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}; key5: {{v5}};\n *             key6: {{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate7(\n *    'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *    '; key6: ', v6, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate7(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n *\n * Update an interpolated style on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div style=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}; key5: {{v5}};\n *             key6: {{v6}}; key7: {{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolate8(\n *    'key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *    '; key6: ', v6, '; key7: ', v7, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} i6 Static value used for concatenation only.\n * @param {?} v7 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolate8(prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    ɵɵstyleMap(interpolatedValue);\n}\n/**\n * Update an interpolated style on an element with 9 or more bound values surrounded by text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  class=\"key: {{v0}}; key1: {{v1}}; key2: {{v2}}; key3: {{v3}}; key4: {{v4}}; key5: {{v5}};\n *         key6: {{v6}}; key7: {{v7}}; key8: {{v8}}; key9: {{v9}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstyleMapInterpolateV(\n *    ['key: ', v0, '; key1: ', v1, '; key2: ', v2, '; key3: ', v3, '; key4: ', v4, '; key5: ', v5,\n *     '; key6: ', v6, '; key7: ', v7, '; key8: ', v8, '; key9: ', v9, 'suffix']);\n * ```\n * .\n * \\@codeGenApi\n * @param {?} values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '; key2: ', value1, '; key2: ', value2, ..., value99, 'suffix']`)\n * @return {?}\n */\nfunction ɵɵstyleMapInterpolateV(values) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolationV(lView, values);\n    ɵɵstyleMap(interpolatedValue);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/style_prop_interpolation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n *\n * Update an interpolated style property on an element with single bound value surrounded by text.\n *\n * Used when the value passed to a property has 1 interpolated value in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate1(0, 'prefix', v0, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate1(prop, prefix, v0, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation1(lView, prefix, v0, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate1;\n}\n/**\n *\n * Update an interpolated style property on an element with 2 bound values surrounded by text.\n *\n * Used when the value passed to a property has 2 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate2(0, 'prefix', v0, '-', v1, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate2(prop, prefix, v0, i0, v1, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation2(lView, prefix, v0, i0, v1, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate2;\n}\n/**\n *\n * Update an interpolated style property on an element with 3 bound values surrounded by text.\n *\n * Used when the value passed to a property has 3 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate3(0, 'prefix', v0, '-', v1, '-', v2, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate3(prop, prefix, v0, i0, v1, i1, v2, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation3(lView, prefix, v0, i0, v1, i1, v2, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate3;\n}\n/**\n *\n * Update an interpolated style property on an element with 4 bound values surrounded by text.\n *\n * Used when the value passed to a property has 4 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate4(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate4(prop, prefix, v0, i0, v1, i1, v2, i2, v3, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation4(lView, prefix, v0, i0, v1, i1, v2, i2, v3, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate4;\n}\n/**\n *\n * Update an interpolated style property on an element with 5 bound values surrounded by text.\n *\n * Used when the value passed to a property has 5 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate5(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate5(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation5(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate5;\n}\n/**\n *\n * Update an interpolated style property on an element with 6 bound values surrounded by text.\n *\n * Used when the value passed to a property has 6 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate6(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate6(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation6(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate6;\n}\n/**\n *\n * Update an interpolated style property on an element with 7 bound values surrounded by text.\n *\n * Used when the value passed to a property has 7 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate7(\n *    0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate7(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation7(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate7;\n}\n/**\n *\n * Update an interpolated style property on an element with 8 bound values surrounded by text.\n *\n * Used when the value passed to a property has 8 interpolated values in it:\n *\n * ```html\n * <div style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}suffix\"></div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolate8(0, 'prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6,\n * '-', v7, 'suffix');\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} prefix Static value used for concatenation only.\n * @param {?} v0 Value checked for change.\n * @param {?} i0 Static value used for concatenation only.\n * @param {?} v1 Value checked for change.\n * @param {?} i1 Static value used for concatenation only.\n * @param {?} v2 Value checked for change.\n * @param {?} i2 Static value used for concatenation only.\n * @param {?} v3 Value checked for change.\n * @param {?} i3 Static value used for concatenation only.\n * @param {?} v4 Value checked for change.\n * @param {?} i4 Static value used for concatenation only.\n * @param {?} v5 Value checked for change.\n * @param {?} i5 Static value used for concatenation only.\n * @param {?} v6 Value checked for change.\n * @param {?} i6 Static value used for concatenation only.\n * @param {?} v7 Value checked for change.\n * @param {?} suffix Static value used for concatenation only.\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolate8(prop, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolation8(lView, prefix, v0, i0, v1, i1, v2, i2, v3, i3, v4, i4, v5, i5, v6, i6, v7, suffix);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolate8;\n}\n/**\n * Update an interpolated style property on an element with 9 or more bound values surrounded by\n * text.\n *\n * Used when the number of interpolated values exceeds 8.\n *\n * ```html\n * <div\n *  style.color=\"prefix{{v0}}-{{v1}}-{{v2}}-{{v3}}-{{v4}}-{{v5}}-{{v6}}-{{v7}}-{{v8}}-{{v9}}suffix\">\n * </div>\n * ```\n *\n * Its compiled representation is:\n *\n * ```ts\n * ɵɵstylePropInterpolateV(\n *  0, ['prefix', v0, '-', v1, '-', v2, '-', v3, '-', v4, '-', v5, '-', v6, '-', v7, '-', v9,\n *  'suffix']);\n * ```\n *\n * \\@codeGenApi\n * @param {?} prop\n * @param {?} values The collection of values and the strings in-between those values, beginning with\n * a string prefix and ending with a string suffix.\n * (e.g. `['prefix', value0, '-', value1, '-', value2, ..., value99, 'suffix']`)\n * @param {?=} valueSuffix Optional suffix. Used with scalar values to add unit such as `px`.\n * @return {?} itself, so that it may be chained.\n */\nfunction ɵɵstylePropInterpolateV(prop, values, valueSuffix) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const interpolatedValue = interpolationV(lView, values);\n    checkStylingProperty(prop, interpolatedValue, valueSuffix, false);\n    return ɵɵstylePropInterpolateV;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/host_property.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Update a property on a host element. Only applies to native node properties, not inputs.\n *\n * Operates on the element selected by index via the {\\@link select} instruction.\n *\n * \\@codeGenApi\n * @template T\n * @param {?} propName Name of property. Because it is going to DOM, this is not subject to\n *        renaming as part of minification.\n * @param {?} value New value to write.\n * @param {?=} sanitizer An optional function used to sanitize the value.\n * @return {?} This function returns itself so that it may be chained\n * (e.g. `property('name', ctx.name)('title', ctx.title)`)\n *\n */\nfunction ɵɵhostProperty(propName, value, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        elementPropertyInternal(tView, tNode, lView, propName, value, lView[RENDERER], sanitizer, true);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, propName, bindingIndex);\n    }\n    return ɵɵhostProperty;\n}\n/**\n * Updates a synthetic host binding (e.g. `[\\@foo]`) on a component or directive.\n *\n * This instruction is for compatibility purposes and is designed to ensure that a\n * synthetic host binding (e.g. `\\@HostBinding('\\@foo')`) properly gets rendered in\n * the component's renderer. Normally all host bindings are evaluated with the parent\n * component's renderer, but, in the case of animation \\@triggers, they need to be\n * evaluated with the sub component's renderer (because that's where the animation\n * triggers are defined).\n *\n * Do not use this instruction as a replacement for `elementProperty`. This instruction\n * only exists to ensure compatibility with the ViewEngine's host binding behavior.\n *\n * \\@codeGenApi\n * @template T\n * @param {?} propName Name of property. Because it is going to DOM, this is not subject to\n *        renaming as part of minification.\n * @param {?} value New value to write.\n * @param {?=} sanitizer An optional function used to sanitize the value.\n *\n * @return {?}\n */\nfunction ɵɵupdateSyntheticHostBinding(propName, value, sanitizer) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const bindingIndex = nextBindingIndex();\n    if (bindingUpdated(lView, bindingIndex, value)) {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const tNode = getSelectedTNode();\n        /** @type {?} */\n        const currentDef = getCurrentDirectiveDef(tView.data);\n        /** @type {?} */\n        const renderer = loadComponentRenderer(currentDef, tNode, lView);\n        elementPropertyInternal(tView, tNode, lView, propName, value, renderer, sanitizer, true);\n        ngDevMode && storePropertyBindingMetadata(tView.data, tNode, propName, bindingIndex);\n    }\n    return ɵɵupdateSyntheticHostBinding;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/instructions/all.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/discovery_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Retrieves the component instance associated with a given DOM element.\n *\n * \\@usageNotes\n * Given the following DOM structure:\n * ```html\n * <my-app>\n *   <div>\n *     <child-comp></child-comp>\n *   </div>\n * </my-app>\n * ```\n * Calling `getComponent` on `<child-comp>` will return the instance of `ChildComponent`\n * associated with this DOM element.\n *\n * Calling the function on `<my-app>` will return the `MyApp` instance.\n *\n *\n * \\@publicApi\n * \\@globalApi ng\n * @template T\n * @param {?} element DOM element from which the component should be retrieved.\n * @return {?} Component instance associated with the element or `null` if there\n *    is no component associated with it.\n *\n */\nfunction getComponent(element) {\n    assertDomElement(element);\n    /** @type {?} */\n    const context = loadLContext(element, false);\n    if (context === null)\n        return null;\n    if (context.component === undefined) {\n        context.component = getComponentAtNodeIndex(context.nodeIndex, context.lView);\n    }\n    return (/** @type {?} */ (context.component));\n}\n/**\n * If inside an embedded view (e.g. `*ngIf` or `*ngFor`), retrieves the context of the embedded\n * view that the element is part of. Otherwise retrieves the instance of the component whose view\n * owns the element (in this case, the result is the same as calling `getOwningComponent`).\n *\n * \\@publicApi\n * \\@globalApi ng\n * @template T\n * @param {?} element Element for which to get the surrounding component instance.\n * @return {?} Instance of the component that is around the element or null if the element isn't\n *    inside any component.\n *\n */\nfunction getContext(element) {\n    assertDomElement(element);\n    /** @type {?} */\n    const context = loadLContext(element, false);\n    return context === null ? null : (/** @type {?} */ (context.lView[CONTEXT]));\n}\n/**\n * Retrieves the component instance whose view contains the DOM element.\n *\n * For example, if `<child-comp>` is used in the template of `<app-comp>`\n * (i.e. a `ViewChild` of `<app-comp>`), calling `getOwningComponent` on `<child-comp>`\n * would return `<app-comp>`.\n *\n * \\@publicApi\n * \\@globalApi ng\n * @template T\n * @param {?} elementOrDir DOM element, component or directive instance\n *    for which to retrieve the root components.\n * @return {?} Component instance whose view owns the DOM element or null if the element is not\n *    part of a component view.\n *\n */\nfunction getOwningComponent(elementOrDir) {\n    /** @type {?} */\n    const context = loadLContext(elementOrDir, false);\n    if (context === null)\n        return null;\n    /** @type {?} */\n    let lView = context.lView;\n    /** @type {?} */\n    let parent;\n    ngDevMode && assertLView(lView);\n    while (lView[HOST] === null && (parent = (/** @type {?} */ (getLViewParent(lView))))) {\n        // As long as lView[HOST] is null we know we are part of sub-template such as `*ngIf`\n        lView = parent;\n    }\n    return lView[FLAGS] & 512 /* IsRoot */ ? null : (/** @type {?} */ (lView[CONTEXT]));\n}\n/**\n * Retrieves all root components associated with a DOM element, directive or component instance.\n * Root components are those which have been bootstrapped by Angular.\n *\n * \\@publicApi\n * \\@globalApi ng\n * @param {?} elementOrDir DOM element, component or directive instance\n *    for which to retrieve the root components.\n * @return {?} Root components associated with the target object.\n *\n */\nfunction getRootComponents(elementOrDir) {\n    return [...getRootContext(elementOrDir).components];\n}\n/**\n * Retrieves an `Injector` associated with an element, component or directive instance.\n *\n * \\@publicApi\n * \\@globalApi ng\n * @param {?} elementOrDir DOM element, component or directive instance for which to\n *    retrieve the injector.\n * @return {?} Injector associated with the element, component or directive instance.\n *\n */\nfunction getInjector(elementOrDir) {\n    /** @type {?} */\n    const context = loadLContext(elementOrDir, false);\n    if (context === null)\n        return Injector.NULL;\n    /** @type {?} */\n    const tNode = (/** @type {?} */ (context.lView[TVIEW].data[context.nodeIndex]));\n    return new NodeInjector(tNode, context.lView);\n}\n/**\n * Retrieve a set of injection tokens at a given DOM node.\n *\n * @param {?} element Element for which the injection tokens should be retrieved.\n * @return {?}\n */\nfunction getInjectionTokens(element) {\n    /** @type {?} */\n    const context = loadLContext(element, false);\n    if (context === null)\n        return [];\n    /** @type {?} */\n    const lView = context.lView;\n    /** @type {?} */\n    const tView = lView[TVIEW];\n    /** @type {?} */\n    const tNode = (/** @type {?} */ (tView.data[context.nodeIndex]));\n    /** @type {?} */\n    const providerTokens = [];\n    /** @type {?} */\n    const startIndex = tNode.providerIndexes & 65535 /* ProvidersStartIndexMask */;\n    /** @type {?} */\n    const endIndex = tNode.directiveEnd;\n    for (let i = startIndex; i < endIndex; i++) {\n        /** @type {?} */\n        let value = tView.data[i];\n        if (isDirectiveDefHack(value)) {\n            // The fact that we sometimes store Type and sometimes DirectiveDef in this location is a\n            // design flaw.  We should always store same type so that we can be monomorphic. The issue\n            // is that for Components/Directives we store the def instead the type. The correct behavior\n            // is that we should always be storing injectable type in this location.\n            value = value.type;\n        }\n        providerTokens.push(value);\n    }\n    return providerTokens;\n}\n/**\n * Retrieves directive instances associated with a given DOM element. Does not include\n * component instances.\n *\n * \\@usageNotes\n * Given the following DOM structure:\n * ```\n * <my-app>\n *   <button my-button></button>\n *   <my-comp></my-comp>\n * </my-app>\n * ```\n * Calling `getDirectives` on `<button>` will return an array with an instance of the `MyButton`\n * directive that is associated with the DOM element.\n *\n * Calling `getDirectives` on `<my-comp>` will return an empty array.\n *\n * \\@publicApi\n * \\@globalApi ng\n * @param {?} element DOM element for which to get the directives.\n * @return {?} Array of directives associated with the element.\n *\n */\nfunction getDirectives(element) {\n    /** @type {?} */\n    const context = (/** @type {?} */ (loadLContext(element)));\n    if (context.directives === undefined) {\n        context.directives = getDirectivesAtNodeIndex(context.nodeIndex, context.lView, false);\n    }\n    // The `directives` in this case are a named array called `LComponentView`. Clone the\n    // result so we don't expose an internal data structure in the user's console.\n    return context.directives === null ? [] : [...context.directives];\n}\n/**\n * @param {?} target\n * @param {?=} throwOnNotFound\n * @return {?}\n */\nfunction loadLContext(target, throwOnNotFound = true) {\n    /** @type {?} */\n    const context = getLContext(target);\n    if (!context && throwOnNotFound) {\n        throw new Error(ngDevMode ? `Unable to find context associated with ${stringifyForError(target)}` :\n            'Invalid ng target');\n    }\n    return context;\n}\n/**\n * Retrieve map of local references.\n *\n * The references are retrieved as a map of local reference name to element or directive instance.\n *\n * @param {?} target DOM element, component or directive instance for which to retrieve\n *    the local references.\n * @return {?}\n */\nfunction getLocalRefs(target) {\n    /** @type {?} */\n    const context = loadLContext(target, false);\n    if (context === null)\n        return {};\n    if (context.localRefs === undefined) {\n        context.localRefs = discoverLocalRefs(context.lView, context.nodeIndex);\n    }\n    return context.localRefs || {};\n}\n/**\n * Retrieves the host element of a component or directive instance.\n * The host element is the DOM element that matched the selector of the directive.\n *\n * \\@publicApi\n * \\@globalApi ng\n * @param {?} componentOrDirective Component or directive instance for which the host\n *     element should be retrieved.\n * @return {?} Host element of the target.\n *\n */\nfunction getHostElement(componentOrDirective) {\n    return (/** @type {?} */ ((/** @type {?} */ ((/** @type {?} */ (getLContext(componentOrDirective))).native))));\n}\n/**\n * Retrieves the rendered text for a given component.\n *\n * This function retrieves the host element of a component and\n * and then returns the `textContent` for that element. This implies\n * that the text returned will include re-projected content of\n * the component as well.\n *\n * @param {?} component The component to return the content text for.\n * @return {?}\n */\nfunction getRenderedText(component) {\n    /** @type {?} */\n    const hostElement = getHostElement(component);\n    return hostElement.textContent || '';\n}\n/**\n * @param {?} node\n * @return {?}\n */\nfunction loadLContextFromNode(node) {\n    if (!(node instanceof Node))\n        throw new Error('Expecting instance of DOM Element');\n    return (/** @type {?} */ (loadLContext(node)));\n}\n/**\n * Event listener configuration returned from `getListeners`.\n * \\@publicApi\n * @record\n */\nfunction Listener() { }\nif (false) {\n    /**\n     * Name of the event listener.\n     * @type {?}\n     */\n    Listener.prototype.name;\n    /**\n     * Element that the listener is bound to.\n     * @type {?}\n     */\n    Listener.prototype.element;\n    /**\n     * Callback that is invoked when the event is triggered.\n     * @type {?}\n     */\n    Listener.prototype.callback;\n    /**\n     * Whether the listener is using event capturing.\n     * @type {?}\n     */\n    Listener.prototype.useCapture;\n    /**\n     * Type of the listener (e.g. a native DOM event or a custom \\@Output).\n     * @type {?}\n     */\n    Listener.prototype.type;\n}\n/**\n * Retrieves a list of event listeners associated with a DOM element. The list does include host\n * listeners, but it does not include event listeners defined outside of the Angular context\n * (e.g. through `addEventListener`).\n *\n * \\@usageNotes\n * Given the following DOM structure:\n * ```\n * <my-app>\n *   <div (click)=\"doSomething()\"></div>\n * </my-app>\n *\n * ```\n * Calling `getListeners` on `<div>` will return an object that looks as follows:\n * ```\n * {\n *   name: 'click',\n *   element: <div>,\n *   callback: () => doSomething(),\n *   useCapture: false\n * }\n * ```\n *\n * \\@publicApi\n * \\@globalApi ng\n * @param {?} element Element for which the DOM listeners should be retrieved.\n * @return {?} Array of event listeners on the DOM element.\n *\n */\nfunction getListeners(element) {\n    assertDomElement(element);\n    /** @type {?} */\n    const lContext = loadLContext(element, false);\n    if (lContext === null)\n        return [];\n    /** @type {?} */\n    const lView = lContext.lView;\n    /** @type {?} */\n    const tView = lView[TVIEW];\n    /** @type {?} */\n    const lCleanup = lView[CLEANUP];\n    /** @type {?} */\n    const tCleanup = tView.cleanup;\n    /** @type {?} */\n    const listeners = [];\n    if (tCleanup && lCleanup) {\n        for (let i = 0; i < tCleanup.length;) {\n            /** @type {?} */\n            const firstParam = tCleanup[i++];\n            /** @type {?} */\n            const secondParam = tCleanup[i++];\n            if (typeof firstParam === 'string') {\n                /** @type {?} */\n                const name = firstParam;\n                /** @type {?} */\n                const listenerElement = (/** @type {?} */ ((/** @type {?} */ (unwrapRNode(lView[secondParam])))));\n                /** @type {?} */\n                const callback = lCleanup[tCleanup[i++]];\n                /** @type {?} */\n                const useCaptureOrIndx = tCleanup[i++];\n                // if useCaptureOrIndx is boolean then report it as is.\n                // if useCaptureOrIndx is positive number then it in unsubscribe method\n                // if useCaptureOrIndx is negative number then it is a Subscription\n                /** @type {?} */\n                const type = (typeof useCaptureOrIndx === 'boolean' || useCaptureOrIndx >= 0) ? 'dom' : 'output';\n                /** @type {?} */\n                const useCapture = typeof useCaptureOrIndx === 'boolean' ? useCaptureOrIndx : false;\n                if (element == listenerElement) {\n                    listeners.push({ element, name, callback, useCapture, type });\n                }\n            }\n        }\n    }\n    listeners.sort(sortListeners);\n    return listeners;\n}\n/**\n * @param {?} a\n * @param {?} b\n * @return {?}\n */\nfunction sortListeners(a, b) {\n    if (a.name == b.name)\n        return 0;\n    return a.name < b.name ? -1 : 1;\n}\n/**\n * This function should not exist because it is megamorphic and only mostly correct.\n *\n * See call site for more info.\n * @param {?} obj\n * @return {?}\n */\nfunction isDirectiveDefHack(obj) {\n    return obj.type !== undefined && obj.template !== undefined && obj.declaredInputs !== undefined;\n}\n/**\n * Returns the attached `DebugNode` instance for an element in the DOM.\n *\n * @param {?} element DOM element which is owned by an existing component's view.\n * @return {?}\n */\nfunction getDebugNode(element) {\n    /** @type {?} */\n    let debugNode = null;\n    /** @type {?} */\n    const lContext = loadLContextFromNode(element);\n    /** @type {?} */\n    const lView = lContext.lView;\n    /** @type {?} */\n    const nodeIndex = lContext.nodeIndex;\n    if (nodeIndex !== -1) {\n        /** @type {?} */\n        const valueInLView = lView[nodeIndex];\n        // this means that value in the lView is a component with its own\n        // data. In this situation the TNode is not accessed at the same spot.\n        /** @type {?} */\n        const tNode = isLView(valueInLView) ? ((/** @type {?} */ (valueInLView[T_HOST]))) :\n            getTNode(lView[TVIEW], nodeIndex - HEADER_OFFSET);\n        debugNode = buildDebugNode(tNode, lView, nodeIndex);\n    }\n    return debugNode;\n}\n/**\n * Retrieve the component `LView` from component/element.\n *\n * NOTE: `LView` is a private and should not be leaked outside.\n *       Don't export this method to `ng.*` on window.\n *\n * @param {?} target DOM element or component instance for which to retrieve the LView.\n * @return {?}\n */\nfunction getComponentLView(target) {\n    /** @type {?} */\n    const lContext = loadLContext(target);\n    /** @type {?} */\n    const nodeIndx = lContext.nodeIndex;\n    /** @type {?} */\n    const lView = lContext.lView;\n    /** @type {?} */\n    const componentLView = lView[nodeIndx];\n    ngDevMode && assertLView(componentLView);\n    return componentLView;\n}\n/**\n * Asserts that a value is a DOM Element.\n * @param {?} value\n * @return {?}\n */\nfunction assertDomElement(value) {\n    if (typeof Element !== 'undefined' && !(value instanceof Element)) {\n        throw new Error('Expecting instance of DOM Element');\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/change_detection_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Marks a component for check (in case of OnPush components) and synchronously\n * performs change detection on the application this component belongs to.\n *\n * \\@publicApi\n * \\@globalApi ng\n * @param {?} component Component to {\\@link ChangeDetectorRef#markForCheck mark for check}.\n *\n * @return {?}\n */\nfunction applyChanges(component) {\n    markDirty(component);\n    getRootComponents(component).forEach((/**\n     * @param {?} rootComponent\n     * @return {?}\n     */\n    rootComponent => detectChanges(rootComponent)));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/util/global_utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This value reflects the property on the window where the dev\n * tools are patched (window.ng).\n *\n * @type {?}\n */\nconst GLOBAL_PUBLISH_EXPANDO_KEY = 'ng';\n/** @type {?} */\nlet _published = false;\n/**\n * Publishes a collection of default debug tools onto`window.ng`.\n *\n * These functions are available globally when Angular is in development\n * mode and are automatically stripped away from prod mode is on.\n * @return {?}\n */\nfunction publishDefaultGlobalUtils() {\n    if (!_published) {\n        _published = true;\n        publishGlobalUtil('getComponent', getComponent);\n        publishGlobalUtil('getContext', getContext);\n        publishGlobalUtil('getListeners', getListeners);\n        publishGlobalUtil('getOwningComponent', getOwningComponent);\n        publishGlobalUtil('getHostElement', getHostElement);\n        publishGlobalUtil('getInjector', getInjector);\n        publishGlobalUtil('getRootComponents', getRootComponents);\n        publishGlobalUtil('getDirectives', getDirectives);\n        publishGlobalUtil('applyChanges', applyChanges);\n    }\n}\n/**\n * Publishes the given function to `window.ng` so that it can be\n * used from the browser console when an application is not in production.\n * @param {?} name\n * @param {?} fn\n * @return {?}\n */\nfunction publishGlobalUtil(name, fn) {\n    if (typeof COMPILED === 'undefined' || !COMPILED) {\n        // Note: we can't export `ng` when using closure enhanced optimization as:\n        // - closure declares globals itself for minified names, which sometimes clobber our `ng` global\n        // - we can't declare a closure extern as the namespace `ng` is already used within Google\n        //   for typings for AngularJS (via `goog.provide('ng....')`).\n        /** @type {?} */\n        const w = (/** @type {?} */ ((/** @type {?} */ (_global))));\n        ngDevMode && assertDefined(fn, 'function not defined');\n        if (w) {\n            /** @type {?} */\n            let container = w[GLOBAL_PUBLISH_EXPANDO_KEY];\n            if (!container) {\n                container = w[GLOBAL_PUBLISH_EXPANDO_KEY] = {};\n            }\n            container[name] = fn;\n        }\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/component.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Options that control how the component should be bootstrapped.\n * @record\n */\nfunction CreateComponentOptions() { }\nif (false) {\n    /**\n     * Which renderer factory to use.\n     * @type {?|undefined}\n     */\n    CreateComponentOptions.prototype.rendererFactory;\n    /**\n     * A custom sanitizer instance\n     * @type {?|undefined}\n     */\n    CreateComponentOptions.prototype.sanitizer;\n    /**\n     * A custom animation player handler\n     * @type {?|undefined}\n     */\n    CreateComponentOptions.prototype.playerHandler;\n    /**\n     * Host element on which the component will be bootstrapped. If not specified,\n     * the component definition's `tag` is used to query the existing DOM for the\n     * element to bootstrap.\n     * @type {?|undefined}\n     */\n    CreateComponentOptions.prototype.host;\n    /**\n     * Module injector for the component. If unspecified, the injector will be NULL_INJECTOR.\n     * @type {?|undefined}\n     */\n    CreateComponentOptions.prototype.injector;\n    /**\n     * List of features to be applied to the created component. Features are simply\n     * functions that decorate a component with a certain behavior.\n     *\n     * Typically, the features in this list are features that cannot be added to the\n     * other features list in the component definition because they rely on other factors.\n     *\n     * Example: `LifecycleHooksFeature` is a function that adds lifecycle hook capabilities\n     * to root components in a tree-shakable way. It cannot be added to the component\n     * features list because there's no way of knowing when the component will be used as\n     * a root component.\n     * @type {?|undefined}\n     */\n    CreateComponentOptions.prototype.hostFeatures;\n    /**\n     * A function which is used to schedule change detection work in the future.\n     *\n     * When marking components as dirty, it is necessary to schedule the work of\n     * change detection in the future. This is done to coalesce multiple\n     * {\\@link markDirty} calls into a single changed detection processing.\n     *\n     * The default value of the scheduler is the `requestAnimationFrame` function.\n     *\n     * It is also useful to override this function for testing purposes.\n     * @type {?|undefined}\n     */\n    CreateComponentOptions.prototype.scheduler;\n}\n// TODO: A hack to not pull in the NullInjector from @angular/core.\nconst ɵ0$b = /**\n * @param {?} token\n * @param {?=} notFoundValue\n * @return {?}\n */\n(token, notFoundValue) => {\n    throw new Error('NullInjector: Not found: ' + stringifyForError(token));\n};\n/** @type {?} */\nconst NULL_INJECTOR$1 = {\n    get: (ɵ0$b)\n};\n/**\n * Bootstraps a Component into an existing host element and returns an instance\n * of the component.\n *\n * Use this function to bootstrap a component into the DOM tree. Each invocation\n * of this function will create a separate tree of components, injectors and\n * change detection cycles and lifetimes. To dynamically insert a new component\n * into an existing tree such that it shares the same injection, change detection\n * and object lifetime, use {\\@link ViewContainer#createComponent}.\n *\n * @template T\n * @param {?} componentType Component to bootstrap\n * @param {?=} opts\n * @return {?}\n */\nfunction renderComponent$1(componentType /* Type as workaround for: Microsoft/TypeScript/issues/4881 */, opts = {}) {\n    ngDevMode && publishDefaultGlobalUtils();\n    ngDevMode && assertComponentType(componentType);\n    /** @type {?} */\n    const rendererFactory = opts.rendererFactory || domRendererFactory3;\n    /** @type {?} */\n    const sanitizer = opts.sanitizer || null;\n    /** @type {?} */\n    const componentDef = (/** @type {?} */ (getComponentDef(componentType)));\n    if (componentDef.type != componentType)\n        ((/** @type {?} */ (componentDef))).type = componentType;\n    // The first index of the first selector is the tag name.\n    /** @type {?} */\n    const componentTag = (/** @type {?} */ ((/** @type {?} */ ((/** @type {?} */ (componentDef.selectors))[0]))[0]));\n    /** @type {?} */\n    const hostRenderer = rendererFactory.createRenderer(null, null);\n    /** @type {?} */\n    const hostRNode = locateHostElement(hostRenderer, opts.host || componentTag, componentDef.encapsulation);\n    /** @type {?} */\n    const rootFlags = componentDef.onPush ? 64 /* Dirty */ | 512 /* IsRoot */ :\n        16 /* CheckAlways */ | 512 /* IsRoot */;\n    /** @type {?} */\n    const rootContext = createRootContext(opts.scheduler, opts.playerHandler);\n    /** @type {?} */\n    const renderer = rendererFactory.createRenderer(hostRNode, componentDef);\n    /** @type {?} */\n    const rootTView = createTView(0 /* Root */, -1, null, 1, 0, null, null, null, null, null);\n    /** @type {?} */\n    const rootView = createLView(null, rootTView, rootContext, rootFlags, null, null, rendererFactory, renderer, undefined, opts.injector || null);\n    enterView(rootView, null);\n    /** @type {?} */\n    let component;\n    try {\n        if (rendererFactory.begin)\n            rendererFactory.begin();\n        /** @type {?} */\n        const componentView = createRootComponentView(hostRNode, componentDef, rootView, rendererFactory, renderer, sanitizer);\n        component = createRootComponent(componentView, componentDef, rootView, rootContext, opts.hostFeatures || null);\n        // create mode pass\n        renderView(rootTView, rootView, null);\n        // update mode pass\n        refreshView(rootTView, rootView, null, null);\n    }\n    finally {\n        leaveView();\n        if (rendererFactory.end)\n            rendererFactory.end();\n    }\n    return component;\n}\n/**\n * Creates the root component view and the root component node.\n *\n * @param {?} rNode Render host element.\n * @param {?} def ComponentDef\n * @param {?} rootView The parent view where the host node is stored\n * @param {?} rendererFactory\n * @param {?} hostRenderer The current renderer\n * @param {?=} sanitizer The sanitizer, if provided\n *\n * @return {?} Component view created\n */\nfunction createRootComponentView(rNode, def, rootView, rendererFactory, hostRenderer, sanitizer) {\n    /** @type {?} */\n    const tView = rootView[TVIEW];\n    ngDevMode && assertDataInRange(rootView, 0 + HEADER_OFFSET);\n    rootView[0 + HEADER_OFFSET] = rNode;\n    /** @type {?} */\n    const tNode = getOrCreateTNode(tView, null, 0, 3 /* Element */, null, null);\n    /** @type {?} */\n    const mergedAttrs = tNode.mergedAttrs = def.hostAttrs;\n    if (mergedAttrs !== null) {\n        computeStaticStyling(tNode, mergedAttrs, true);\n        if (rNode !== null) {\n            setUpAttributes(hostRenderer, rNode, mergedAttrs);\n            if (tNode.classes !== null) {\n                writeDirectClass(hostRenderer, rNode, tNode.classes);\n            }\n            if (tNode.styles !== null) {\n                writeDirectStyle(hostRenderer, rNode, tNode.styles);\n            }\n        }\n    }\n    /** @type {?} */\n    const viewRenderer = rendererFactory.createRenderer(rNode, def);\n    /** @type {?} */\n    const componentView = createLView(rootView, getOrCreateTComponentView(def), null, def.onPush ? 64 /* Dirty */ : 16 /* CheckAlways */, rootView[HEADER_OFFSET], tNode, rendererFactory, viewRenderer, sanitizer);\n    if (tView.firstCreatePass) {\n        diPublicInInjector(getOrCreateNodeInjectorForNode(tNode, rootView), tView, def.type);\n        markAsComponentHost(tView, tNode);\n        initTNodeFlags(tNode, rootView.length, 1);\n    }\n    addToViewTree(rootView, componentView);\n    // Store component view at node index, with node as the HOST\n    return rootView[HEADER_OFFSET] = componentView;\n}\n/**\n * Creates a root component and sets it up with features and host bindings. Shared by\n * renderComponent() and ViewContainerRef.createComponent().\n * @template T\n * @param {?} componentView\n * @param {?} componentDef\n * @param {?} rootLView\n * @param {?} rootContext\n * @param {?} hostFeatures\n * @return {?}\n */\nfunction createRootComponent(componentView, componentDef, rootLView, rootContext, hostFeatures) {\n    /** @type {?} */\n    const tView = rootLView[TVIEW];\n    // Create directive instance with factory() and store at next index in viewData\n    /** @type {?} */\n    const component = instantiateRootComponent(tView, rootLView, componentDef);\n    rootContext.components.push(component);\n    componentView[CONTEXT] = component;\n    hostFeatures && hostFeatures.forEach((/**\n     * @param {?} feature\n     * @return {?}\n     */\n    (feature) => feature(component, componentDef)));\n    // We want to generate an empty QueryList for root content queries for backwards\n    // compatibility with ViewEngine.\n    if (componentDef.contentQueries) {\n        componentDef.contentQueries(1 /* Create */, component, rootLView.length - 1);\n    }\n    /** @type {?} */\n    const rootTNode = getPreviousOrParentTNode();\n    if (tView.firstCreatePass &&\n        (componentDef.hostBindings !== null || componentDef.hostAttrs !== null)) {\n        /** @type {?} */\n        const elementIndex = rootTNode.index - HEADER_OFFSET;\n        setSelectedIndex(elementIndex);\n        /** @type {?} */\n        const rootTView = rootLView[TVIEW];\n        addHostBindingsToExpandoInstructions(rootTView, componentDef);\n        growHostVarsSpace(rootTView, rootLView, componentDef.hostVars);\n        invokeHostBindingsInCreationMode(componentDef, component);\n    }\n    return component;\n}\n/**\n * @param {?=} scheduler\n * @param {?=} playerHandler\n * @return {?}\n */\nfunction createRootContext(scheduler, playerHandler) {\n    return {\n        components: [],\n        scheduler: scheduler || defaultScheduler,\n        clean: CLEAN_PROMISE,\n        playerHandler: playerHandler || null,\n        flags: 0 /* Empty */\n    };\n}\n/**\n * Used to enable lifecycle hooks on the root component.\n *\n * Include this feature when calling `renderComponent` if the root component\n * you are rendering has lifecycle hooks defined. Otherwise, the hooks won't\n * be called properly.\n *\n * Example:\n *\n * ```\n * renderComponent(AppComponent, {hostFeatures: [LifecycleHooksFeature]});\n * ```\n * @param {?} component\n * @param {?} def\n * @return {?}\n */\nfunction LifecycleHooksFeature(component, def) {\n    /** @type {?} */\n    const rootTView = (/** @type {?} */ (readPatchedLView(component)))[TVIEW];\n    /** @type {?} */\n    const dirIndex = rootTView.data.length - 1;\n    // TODO(misko): replace `as TNode` with createTNode call. (needs refactoring to lose dep on\n    // LNode).\n    registerPostOrderHooks(rootTView, (/** @type {?} */ ({ directiveStart: dirIndex, directiveEnd: dirIndex + 1 })));\n}\n/**\n * Wait on component until it is rendered.\n *\n * This function returns a `Promise` which is resolved when the component's\n * change detection is executed. This is determined by finding the scheduler\n * associated with the `component`'s render tree and waiting until the scheduler\n * flushes. If nothing is scheduled, the function returns a resolved promise.\n *\n * Example:\n * ```\n * await whenRendered(myComponent);\n * ```\n *\n * @param {?} component Component to wait upon\n * @return {?} Promise which resolves when the component is rendered.\n */\nfunction whenRendered(component) {\n    return getRootContext(component).clean;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/features/inherit_definition_feature.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} type\n * @return {?}\n */\nfunction getSuperType(type) {\n    return Object.getPrototypeOf(type.prototype).constructor;\n}\n/**\n * Merges the definition from a super class to a sub class.\n * \\@codeGenApi\n * @param {?} definition The definition that is a SubClass of another directive of component\n *\n * @return {?}\n */\nfunction ɵɵInheritDefinitionFeature(definition) {\n    /** @type {?} */\n    let superType = getSuperType(definition.type);\n    /** @type {?} */\n    let shouldInheritFields = true;\n    /** @type {?} */\n    const inheritanceChain = [definition];\n    while (superType) {\n        /** @type {?} */\n        let superDef = undefined;\n        if (isComponentDef(definition)) {\n            // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n            superDef = superType.ɵcmp || superType.ɵdir;\n        }\n        else {\n            if (superType.ɵcmp) {\n                throw new Error('Directives cannot inherit Components');\n            }\n            // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n            superDef = superType.ɵdir;\n        }\n        if (superDef) {\n            if (shouldInheritFields) {\n                inheritanceChain.push(superDef);\n                // Some fields in the definition may be empty, if there were no values to put in them that\n                // would've justified object creation. Unwrap them if necessary.\n                /** @type {?} */\n                const writeableDef = (/** @type {?} */ (definition));\n                writeableDef.inputs = maybeUnwrapEmpty(definition.inputs);\n                writeableDef.declaredInputs = maybeUnwrapEmpty(definition.declaredInputs);\n                writeableDef.outputs = maybeUnwrapEmpty(definition.outputs);\n                // Merge hostBindings\n                /** @type {?} */\n                const superHostBindings = superDef.hostBindings;\n                superHostBindings && inheritHostBindings(definition, superHostBindings);\n                // Merge queries\n                /** @type {?} */\n                const superViewQuery = superDef.viewQuery;\n                /** @type {?} */\n                const superContentQueries = superDef.contentQueries;\n                superViewQuery && inheritViewQuery(definition, superViewQuery);\n                superContentQueries && inheritContentQueries(definition, superContentQueries);\n                // Merge inputs and outputs\n                fillProperties(definition.inputs, superDef.inputs);\n                fillProperties(definition.declaredInputs, superDef.declaredInputs);\n                fillProperties(definition.outputs, superDef.outputs);\n                // Merge animations metadata.\n                // If `superDef` is a Component, the `data` field is present (defaults to an empty object).\n                if (isComponentDef(superDef) && superDef.data.animation) {\n                    // If super def is a Component, the `definition` is also a Component, since Directives can\n                    // not inherit Components (we throw an error above and cannot reach this code).\n                    /** @type {?} */\n                    const defData = ((/** @type {?} */ (definition))).data;\n                    defData.animation = (defData.animation || []).concat(superDef.data.animation);\n                }\n                // Inherit hooks\n                // Assume super class inheritance feature has already run.\n                writeableDef.afterContentChecked =\n                    writeableDef.afterContentChecked || superDef.afterContentChecked;\n                writeableDef.afterContentInit = definition.afterContentInit || superDef.afterContentInit;\n                writeableDef.afterViewChecked = definition.afterViewChecked || superDef.afterViewChecked;\n                writeableDef.afterViewInit = definition.afterViewInit || superDef.afterViewInit;\n                writeableDef.doCheck = definition.doCheck || superDef.doCheck;\n                writeableDef.onDestroy = definition.onDestroy || superDef.onDestroy;\n                writeableDef.onInit = definition.onInit || superDef.onInit;\n            }\n            // Run parent features\n            /** @type {?} */\n            const features = superDef.features;\n            if (features) {\n                for (let i = 0; i < features.length; i++) {\n                    /** @type {?} */\n                    const feature = features[i];\n                    if (feature && feature.ngInherit) {\n                        ((/** @type {?} */ (feature)))(definition);\n                    }\n                    // If `InheritDefinitionFeature` is a part of the current `superDef`, it means that this\n                    // def already has all the necessary information inherited from its super class(es), so we\n                    // can stop merging fields from super classes. However we need to iterate through the\n                    // prototype chain to look for classes that might contain other \"features\" (like\n                    // NgOnChanges), which we should invoke for the original `definition`. We set the\n                    // `shouldInheritFields` flag to indicate that, essentially skipping fields inheritance\n                    // logic and only invoking functions from the \"features\" list.\n                    if (feature === ɵɵInheritDefinitionFeature) {\n                        shouldInheritFields = false;\n                    }\n                }\n            }\n        }\n        superType = Object.getPrototypeOf(superType);\n    }\n    mergeHostAttrsAcrossInheritance(inheritanceChain);\n}\n/**\n * Merge the `hostAttrs` and `hostVars` from the inherited parent to the base class.\n *\n * @param {?} inheritanceChain A list of `WritableDefs` starting at the top most type and listing\n * sub-types in order. For each type take the `hostAttrs` and `hostVars` and merge it with the child\n * type.\n * @return {?}\n */\nfunction mergeHostAttrsAcrossInheritance(inheritanceChain) {\n    /** @type {?} */\n    let hostVars = 0;\n    /** @type {?} */\n    let hostAttrs = null;\n    // We process the inheritance order from the base to the leaves here.\n    for (let i = inheritanceChain.length - 1; i >= 0; i--) {\n        /** @type {?} */\n        const def = inheritanceChain[i];\n        // For each `hostVars`, we need to add the superclass amount.\n        def.hostVars = (hostVars += def.hostVars);\n        // for each `hostAttrs` we need to merge it with superclass.\n        def.hostAttrs =\n            mergeHostAttrs(def.hostAttrs, hostAttrs = mergeHostAttrs(hostAttrs, def.hostAttrs));\n    }\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction maybeUnwrapEmpty(value) {\n    if (value === EMPTY_OBJ) {\n        return {};\n    }\n    else if (value === EMPTY_ARRAY) {\n        return [];\n    }\n    else {\n        return value;\n    }\n}\n/**\n * @param {?} definition\n * @param {?} superViewQuery\n * @return {?}\n */\nfunction inheritViewQuery(definition, superViewQuery) {\n    /** @type {?} */\n    const prevViewQuery = definition.viewQuery;\n    if (prevViewQuery) {\n        definition.viewQuery = (/**\n         * @param {?} rf\n         * @param {?} ctx\n         * @return {?}\n         */\n        (rf, ctx) => {\n            superViewQuery(rf, ctx);\n            prevViewQuery(rf, ctx);\n        });\n    }\n    else {\n        definition.viewQuery = superViewQuery;\n    }\n}\n/**\n * @param {?} definition\n * @param {?} superContentQueries\n * @return {?}\n */\nfunction inheritContentQueries(definition, superContentQueries) {\n    /** @type {?} */\n    const prevContentQueries = definition.contentQueries;\n    if (prevContentQueries) {\n        definition.contentQueries = (/**\n         * @param {?} rf\n         * @param {?} ctx\n         * @param {?} directiveIndex\n         * @return {?}\n         */\n        (rf, ctx, directiveIndex) => {\n            superContentQueries(rf, ctx, directiveIndex);\n            prevContentQueries(rf, ctx, directiveIndex);\n        });\n    }\n    else {\n        definition.contentQueries = superContentQueries;\n    }\n}\n/**\n * @param {?} definition\n * @param {?} superHostBindings\n * @return {?}\n */\nfunction inheritHostBindings(definition, superHostBindings) {\n    /** @type {?} */\n    const prevHostBindings = definition.hostBindings;\n    if (prevHostBindings) {\n        definition.hostBindings = (/**\n         * @param {?} rf\n         * @param {?} ctx\n         * @return {?}\n         */\n        (rf, ctx) => {\n            superHostBindings(rf, ctx);\n            prevHostBindings(rf, ctx);\n        });\n    }\n    else {\n        definition.hostBindings = superHostBindings;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/features/copy_definition_feature.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Fields which exist on either directive or component definitions, and need to be copied from\n * parent to child classes by the `ɵɵCopyDefinitionFeature`.\n * @type {?}\n */\nconst COPY_DIRECTIVE_FIELDS = [\n    // The child class should use the providers of its parent.\n    'providersResolver',\n];\n/**\n * Fields which exist only on component definitions, and need to be copied from parent to child\n * classes by the `ɵɵCopyDefinitionFeature`.\n *\n * The type here allows any field of `ComponentDef` which is not also a property of `DirectiveDef`,\n * since those should go in `COPY_DIRECTIVE_FIELDS` above.\n * @type {?}\n */\nconst COPY_COMPONENT_FIELDS = [\n    // The child class should use the template function of its parent, including all template\n    // semantics.\n    'template',\n    'decls',\n    'consts',\n    'vars',\n    'onPush',\n    'ngContentSelectors',\n    // The child class should use the CSS styles of its parent, including all styling semantics.\n    'styles',\n    'encapsulation',\n    // The child class should be checked by the runtime in the same way as its parent.\n    'schemas',\n];\n/**\n * Copies the fields not handled by the `ɵɵInheritDefinitionFeature` from the supertype of a\n * definition.\n *\n * This exists primarily to support ngcc migration of an existing View Engine pattern, where an\n * entire decorator is inherited from a parent to a child class. When ngcc detects this case, it\n * generates a skeleton definition on the child class, and applies this feature.\n *\n * The `ɵɵCopyDefinitionFeature` then copies any needed fields from the parent class' definition,\n * including things like the component template function.\n *\n * \\@codeGenApi\n * @param {?} definition The definition of a child class which inherits from a parent class with its\n * own definition.\n *\n * @return {?}\n */\nfunction ɵɵCopyDefinitionFeature(definition) {\n    /** @type {?} */\n    let superType = (/** @type {?} */ (getSuperType(definition.type)));\n    /** @type {?} */\n    let superDef = undefined;\n    if (isComponentDef(definition)) {\n        // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n        superDef = (/** @type {?} */ (superType.ɵcmp));\n    }\n    else {\n        // Don't use getComponentDef/getDirectiveDef. This logic relies on inheritance.\n        superDef = (/** @type {?} */ (superType.ɵdir));\n    }\n    // Needed because `definition` fields are readonly.\n    /** @type {?} */\n    const defAny = ((/** @type {?} */ (definition)));\n    // Copy over any fields that apply to either directives or components.\n    for (const field of COPY_DIRECTIVE_FIELDS) {\n        defAny[field] = superDef[field];\n    }\n    if (isComponentDef(superDef)) {\n        // Copy over any component-specific fields.\n        for (const field of COPY_COMPONENT_FIELDS) {\n            defAny[field] = superDef[field];\n        }\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Represents a basic change from a previous to a new value for a single\n * property on a directive instance. Passed as a value in a\n * {@link SimpleChanges} object to the `ngOnChanges` hook.\n *\n * @see `OnChanges`\n *\n * @publicApi\n */\nclass SimpleChange {\n    constructor(previousValue, currentValue, firstChange) {\n        this.previousValue = previousValue;\n        this.currentValue = currentValue;\n        this.firstChange = firstChange;\n    }\n    /**\n     * Check whether the new value is the first value assigned.\n     */\n    isFirstChange() {\n        return this.firstChange;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/features/ng_onchanges_feature.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst PRIVATE_PREFIX = '__ngOnChanges_';\n/**\n * The NgOnChangesFeature decorates a component with support for the ngOnChanges\n * lifecycle hook, so it should be included in any component that implements\n * that hook.\n *\n * If the component or directive uses inheritance, the NgOnChangesFeature MUST\n * be included as a feature AFTER {\\@link InheritDefinitionFeature}, otherwise\n * inherited properties will not be propagated to the ngOnChanges lifecycle\n * hook.\n *\n * Example usage:\n *\n * ```\n * static ɵcmp = defineComponent({\n *   ...\n *   inputs: {name: 'publicName'},\n *   features: [NgOnChangesFeature]\n * });\n * ```\n *\n * \\@codeGenApi\n * @template T\n * @param {?} definition\n * @return {?}\n */\nfunction ɵɵNgOnChangesFeature(definition) {\n    if (definition.type.prototype.ngOnChanges) {\n        definition.setInput = ngOnChangesSetInput;\n        ((/** @type {?} */ (definition))).onChanges = wrapOnChanges();\n    }\n}\n// This option ensures that the ngOnChanges lifecycle hook will be inherited\n// from superclasses (in InheritDefinitionFeature).\n/** @nocollapse */\n// tslint:disable-next-line:no-toplevel-property-access\n((/** @type {?} */ (ɵɵNgOnChangesFeature))).ngInherit = true;\n/**\n * @return {?}\n */\nfunction wrapOnChanges() {\n    return (/**\n     * @this {?}\n     * @return {?}\n     */\n    function wrapOnChangesHook_inPreviousChangesStorage() {\n        /** @type {?} */\n        const simpleChangesStore = getSimpleChangesStore(this);\n        /** @type {?} */\n        const current = simpleChangesStore && simpleChangesStore.current;\n        if (current) {\n            /** @type {?} */\n            const previous = (/** @type {?} */ (simpleChangesStore)).previous;\n            if (previous === EMPTY_OBJ) {\n                (/** @type {?} */ (simpleChangesStore)).previous = current;\n            }\n            else {\n                // New changes are copied to the previous store, so that we don't lose history for inputs\n                // which were not changed this time\n                for (let key in current) {\n                    previous[key] = current[key];\n                }\n            }\n            (/** @type {?} */ (simpleChangesStore)).current = null;\n            this.ngOnChanges(current);\n        }\n    });\n}\n/**\n * @template T\n * @this {?}\n * @param {?} instance\n * @param {?} value\n * @param {?} publicName\n * @param {?} privateName\n * @return {?}\n */\nfunction ngOnChangesSetInput(instance, value, publicName, privateName) {\n    /** @type {?} */\n    const simpleChangesStore = getSimpleChangesStore(instance) ||\n        setSimpleChangesStore(instance, { previous: EMPTY_OBJ, current: null });\n    /** @type {?} */\n    const current = simpleChangesStore.current || (simpleChangesStore.current = {});\n    /** @type {?} */\n    const previous = simpleChangesStore.previous;\n    /** @type {?} */\n    const declaredName = ((/** @type {?} */ (this.declaredInputs)))[publicName];\n    /** @type {?} */\n    const previousChange = previous[declaredName];\n    current[declaredName] = new SimpleChange(previousChange && previousChange.currentValue, value, previous === EMPTY_OBJ);\n    ((/** @type {?} */ (instance)))[privateName] = value;\n}\n/** @type {?} */\nconst SIMPLE_CHANGES_STORE = '__ngSimpleChanges__';\n/**\n * @param {?} instance\n * @return {?}\n */\nfunction getSimpleChangesStore(instance) {\n    return instance[SIMPLE_CHANGES_STORE] || null;\n}\n/**\n * @param {?} instance\n * @param {?} store\n * @return {?}\n */\nfunction setSimpleChangesStore(instance, store) {\n    return instance[SIMPLE_CHANGES_STORE] = store;\n}\n/**\n * @record\n */\nfunction NgSimpleChangesStore() { }\nif (false) {\n    /** @type {?} */\n    NgSimpleChangesStore.prototype.previous;\n    /** @type {?} */\n    NgSimpleChangesStore.prototype.current;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/di_setup.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Resolves the providers which are defined in the DirectiveDef.\n *\n * When inserting the tokens and the factories in their respective arrays, we can assume that\n * this method is called first for the component (if any), and then for other directives on the same\n * node.\n * As a consequence,the providers are always processed in that order:\n * 1) The view providers of the component\n * 2) The providers of the component\n * 3) The providers of the other directives\n * This matches the structure of the injectables arrays of a view (for each node).\n * So the tokens and the factories can be pushed at the end of the arrays, except\n * in one case for multi providers.\n *\n * @template T\n * @param {?} def the directive definition\n * @param {?} providers\n * @param {?} viewProviders\n * @return {?}\n */\nfunction providersResolver(def, providers, viewProviders) {\n    /** @type {?} */\n    const tView = getTView();\n    if (tView.firstCreatePass) {\n        /** @type {?} */\n        const isComponent = isComponentDef(def);\n        // The list of view providers is processed first, and the flags are updated\n        resolveProvider$1(viewProviders, tView.data, tView.blueprint, isComponent, true);\n        // Then, the list of providers is processed, and the flags are updated\n        resolveProvider$1(providers, tView.data, tView.blueprint, isComponent, false);\n    }\n}\n/**\n * Resolves a provider and publishes it to the DI system.\n * @param {?} provider\n * @param {?} tInjectables\n * @param {?} lInjectablesBlueprint\n * @param {?} isComponent\n * @param {?} isViewProvider\n * @return {?}\n */\nfunction resolveProvider$1(provider, tInjectables, lInjectablesBlueprint, isComponent, isViewProvider) {\n    provider = resolveForwardRef(provider);\n    if (Array.isArray(provider)) {\n        // Recursively call `resolveProvider`\n        // Recursion is OK in this case because this code will not be in hot-path once we implement\n        // cloning of the initial state.\n        for (let i = 0; i < provider.length; i++) {\n            resolveProvider$1(provider[i], tInjectables, lInjectablesBlueprint, isComponent, isViewProvider);\n        }\n    }\n    else {\n        /** @type {?} */\n        const tView = getTView();\n        /** @type {?} */\n        const lView = getLView();\n        /** @type {?} */\n        let token = isTypeProvider(provider) ? provider : resolveForwardRef(provider.provide);\n        /** @type {?} */\n        let providerFactory = providerToFactory(provider);\n        /** @type {?} */\n        const tNode = getPreviousOrParentTNode();\n        /** @type {?} */\n        const beginIndex = tNode.providerIndexes & 65535 /* ProvidersStartIndexMask */;\n        /** @type {?} */\n        const endIndex = tNode.directiveStart;\n        /** @type {?} */\n        const cptViewProvidersCount = tNode.providerIndexes >> 16 /* CptViewProvidersCountShift */;\n        if (isTypeProvider(provider) || !provider.multi) {\n            // Single provider case: the factory is created and pushed immediately\n            /** @type {?} */\n            const factory = new NodeInjectorFactory(providerFactory, isViewProvider, ɵɵdirectiveInject);\n            /** @type {?} */\n            const existingFactoryIndex = indexOf(token, tInjectables, isViewProvider ? beginIndex : beginIndex + cptViewProvidersCount, endIndex);\n            if (existingFactoryIndex === -1) {\n                diPublicInInjector(getOrCreateNodeInjectorForNode((/** @type {?} */ (tNode)), lView), tView, token);\n                registerDestroyHooksIfSupported(tView, provider, tInjectables.length);\n                tInjectables.push(token);\n                tNode.directiveStart++;\n                tNode.directiveEnd++;\n                if (isViewProvider) {\n                    tNode.providerIndexes += 65536 /* CptViewProvidersCountShifter */;\n                }\n                lInjectablesBlueprint.push(factory);\n                lView.push(factory);\n            }\n            else {\n                lInjectablesBlueprint[existingFactoryIndex] = factory;\n                lView[existingFactoryIndex] = factory;\n            }\n        }\n        else {\n            // Multi provider case:\n            // We create a multi factory which is going to aggregate all the values.\n            // Since the output of such a factory depends on content or view injection,\n            // we create two of them, which are linked together.\n            //\n            // The first one (for view providers) is always in the first block of the injectables array,\n            // and the second one (for providers) is always in the second block.\n            // This is important because view providers have higher priority. When a multi token\n            // is being looked up, the view providers should be found first.\n            // Note that it is not possible to have a multi factory in the third block (directive block).\n            //\n            // The algorithm to process multi providers is as follows:\n            // 1) If the multi provider comes from the `viewProviders` of the component:\n            //   a) If the special view providers factory doesn't exist, it is created and pushed.\n            //   b) Else, the multi provider is added to the existing multi factory.\n            // 2) If the multi provider comes from the `providers` of the component or of another\n            // directive:\n            //   a) If the multi factory doesn't exist, it is created and provider pushed into it.\n            //      It is also linked to the multi factory for view providers, if it exists.\n            //   b) Else, the multi provider is added to the existing multi factory.\n            /** @type {?} */\n            const existingProvidersFactoryIndex = indexOf(token, tInjectables, beginIndex + cptViewProvidersCount, endIndex);\n            /** @type {?} */\n            const existingViewProvidersFactoryIndex = indexOf(token, tInjectables, beginIndex, beginIndex + cptViewProvidersCount);\n            /** @type {?} */\n            const doesProvidersFactoryExist = existingProvidersFactoryIndex >= 0 &&\n                lInjectablesBlueprint[existingProvidersFactoryIndex];\n            /** @type {?} */\n            const doesViewProvidersFactoryExist = existingViewProvidersFactoryIndex >= 0 &&\n                lInjectablesBlueprint[existingViewProvidersFactoryIndex];\n            if (isViewProvider && !doesViewProvidersFactoryExist ||\n                !isViewProvider && !doesProvidersFactoryExist) {\n                // Cases 1.a and 2.a\n                diPublicInInjector(getOrCreateNodeInjectorForNode((/** @type {?} */ (tNode)), lView), tView, token);\n                /** @type {?} */\n                const factory = multiFactory(isViewProvider ? multiViewProvidersFactoryResolver : multiProvidersFactoryResolver, lInjectablesBlueprint.length, isViewProvider, isComponent, providerFactory);\n                if (!isViewProvider && doesViewProvidersFactoryExist) {\n                    lInjectablesBlueprint[existingViewProvidersFactoryIndex].providerFactory = factory;\n                }\n                registerDestroyHooksIfSupported(tView, provider, tInjectables.length, 0);\n                tInjectables.push(token);\n                tNode.directiveStart++;\n                tNode.directiveEnd++;\n                if (isViewProvider) {\n                    tNode.providerIndexes += 65536 /* CptViewProvidersCountShifter */;\n                }\n                lInjectablesBlueprint.push(factory);\n                lView.push(factory);\n            }\n            else {\n                // Cases 1.b and 2.b\n                /** @type {?} */\n                const indexInFactory = multiFactoryAdd((/** @type {?} */ (lInjectablesBlueprint))[isViewProvider ? existingViewProvidersFactoryIndex :\n                    existingProvidersFactoryIndex], providerFactory, !isViewProvider && isComponent);\n                registerDestroyHooksIfSupported(tView, provider, existingProvidersFactoryIndex > -1 ? existingProvidersFactoryIndex :\n                    existingViewProvidersFactoryIndex, indexInFactory);\n            }\n            if (!isViewProvider && isComponent && doesViewProvidersFactoryExist) {\n                (/** @type {?} */ (lInjectablesBlueprint[existingViewProvidersFactoryIndex].componentProviders))++;\n            }\n        }\n    }\n}\n/**\n * Registers the `ngOnDestroy` hook of a provider, if the provider supports destroy hooks.\n * @param {?} tView `TView` in which to register the hook.\n * @param {?} provider Provider whose hook should be registered.\n * @param {?} contextIndex Index under which to find the context for the hook when it's being invoked.\n * @param {?=} indexInFactory Only required for `multi` providers. Index of the provider in the multi\n * provider factory.\n * @return {?}\n */\nfunction registerDestroyHooksIfSupported(tView, provider, contextIndex, indexInFactory) {\n    /** @type {?} */\n    const providerIsTypeProvider = isTypeProvider(provider);\n    if (providerIsTypeProvider || isClassProvider(provider)) {\n        /** @type {?} */\n        const prototype = (((/** @type {?} */ (provider))).useClass || provider).prototype;\n        /** @type {?} */\n        const ngOnDestroy = prototype.ngOnDestroy;\n        if (ngOnDestroy) {\n            /** @type {?} */\n            const hooks = tView.destroyHooks || (tView.destroyHooks = []);\n            if (!providerIsTypeProvider && (((/** @type {?} */ (provider)))).multi) {\n                ngDevMode &&\n                    assertDefined(indexInFactory, 'indexInFactory when registering multi factory destroy hook');\n                /** @type {?} */\n                const existingCallbacksIndex = hooks.indexOf(contextIndex);\n                if (existingCallbacksIndex === -1) {\n                    hooks.push(contextIndex, [indexInFactory, ngOnDestroy]);\n                }\n                else {\n                    ((/** @type {?} */ (hooks[existingCallbacksIndex + 1]))).push((/** @type {?} */ (indexInFactory)), ngOnDestroy);\n                }\n            }\n            else {\n                hooks.push(contextIndex, ngOnDestroy);\n            }\n        }\n    }\n}\n/**\n * Add a factory in a multi factory.\n * @param {?} multiFactory\n * @param {?} factory\n * @param {?} isComponentProvider\n * @return {?} Index at which the factory was inserted.\n */\nfunction multiFactoryAdd(multiFactory, factory, isComponentProvider) {\n    if (isComponentProvider) {\n        (/** @type {?} */ (multiFactory.componentProviders))++;\n    }\n    return (/** @type {?} */ (multiFactory.multi)).push(factory) - 1;\n}\n/**\n * Returns the index of item in the array, but only in the begin to end range.\n * @param {?} item\n * @param {?} arr\n * @param {?} begin\n * @param {?} end\n * @return {?}\n */\nfunction indexOf(item, arr, begin, end) {\n    for (let i = begin; i < end; i++) {\n        if (arr[i] === item)\n            return i;\n    }\n    return -1;\n}\n/**\n * Use this with `multi` `providers`.\n * @this {?}\n * @param {?} _\n * @param {?} tData\n * @param {?} lData\n * @param {?} tNode\n * @return {?}\n */\nfunction multiProvidersFactoryResolver(_, tData, lData, tNode) {\n    return multiResolve((/** @type {?} */ (this.multi)), []);\n}\n/**\n * Use this with `multi` `viewProviders`.\n *\n * This factory knows how to concatenate itself with the existing `multi` `providers`.\n * @this {?}\n * @param {?} _\n * @param {?} tData\n * @param {?} lView\n * @param {?} tNode\n * @return {?}\n */\nfunction multiViewProvidersFactoryResolver(_, tData, lView, tNode) {\n    /** @type {?} */\n    const factories = (/** @type {?} */ (this.multi));\n    /** @type {?} */\n    let result;\n    if (this.providerFactory) {\n        /** @type {?} */\n        const componentCount = (/** @type {?} */ (this.providerFactory.componentProviders));\n        /** @type {?} */\n        const multiProviders = getNodeInjectable(lView, lView[TVIEW], (/** @type {?} */ ((/** @type {?} */ (this.providerFactory)).index)), tNode);\n        // Copy the section of the array which contains `multi` `providers` from the component\n        result = multiProviders.slice(0, componentCount);\n        // Insert the `viewProvider` instances.\n        multiResolve(factories, result);\n        // Copy the section of the array which contains `multi` `providers` from other directives\n        for (let i = componentCount; i < multiProviders.length; i++) {\n            result.push(multiProviders[i]);\n        }\n    }\n    else {\n        result = [];\n        // Insert the `viewProvider` instances.\n        multiResolve(factories, result);\n    }\n    return result;\n}\n/**\n * Maps an array of factories into an array of values.\n * @param {?} factories\n * @param {?} result\n * @return {?}\n */\nfunction multiResolve(factories, result) {\n    for (let i = 0; i < factories.length; i++) {\n        /** @type {?} */\n        const factory = (/** @type {?} */ ((/** @type {?} */ (factories[i]))));\n        result.push(factory());\n    }\n    return result;\n}\n/**\n * Creates a multi factory.\n * @param {?} factoryFn\n * @param {?} index\n * @param {?} isViewProvider\n * @param {?} isComponent\n * @param {?} f\n * @return {?}\n */\nfunction multiFactory(factoryFn, index, isViewProvider, isComponent, f) {\n    /** @type {?} */\n    const factory = new NodeInjectorFactory(factoryFn, isViewProvider, ɵɵdirectiveInject);\n    factory.multi = [];\n    factory.index = index;\n    factory.componentProviders = 0;\n    multiFactoryAdd(factory, f, isComponent && !isViewProvider);\n    return factory;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/features/providers_feature.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This feature resolves the providers of a directive (or component),\n * and publish them into the DI system, making it visible to others for injection.\n *\n * For example:\n * ```ts\n * class ComponentWithProviders {\n *   constructor(private greeter: GreeterDE) {}\n *\n *   static ɵcmp = defineComponent({\n *     type: ComponentWithProviders,\n *     selectors: [['component-with-providers']],\n *    factory: () => new ComponentWithProviders(directiveInject(GreeterDE as any)),\n *    decls: 1,\n *    vars: 1,\n *    template: function(fs: RenderFlags, ctx: ComponentWithProviders) {\n *      if (fs & RenderFlags.Create) {\n *        ɵɵtext(0);\n *      }\n *      if (fs & RenderFlags.Update) {\n *        ɵɵtextInterpolate(ctx.greeter.greet());\n *      }\n *    },\n *    features: [ProvidersFeature([GreeterDE])]\n *  });\n * }\n * ```\n *\n * \\@codeGenApi\n * @template T\n * @param {?} providers\n * @param {?=} viewProviders\n * @return {?}\n */\nfunction ɵɵProvidersFeature(providers, viewProviders = []) {\n    return (/**\n     * @param {?} definition\n     * @return {?}\n     */\n    (definition) => {\n        definition.providersResolver =\n            (/**\n             * @param {?} def\n             * @param {?=} processProvidersFn\n             * @return {?}\n             */\n            (def, processProvidersFn) => {\n                return providersResolver(def, //\n                processProvidersFn ? processProvidersFn(providers) : providers, //\n                viewProviders);\n            });\n    });\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/component_factory.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Represents a component created by a `ComponentFactory`.\n * Provides access to the component instance and related objects,\n * and provides the means of destroying the instance.\n *\n * \\@publicApi\n * @abstract\n * @template C\n */\nclass ComponentRef {\n}\nif (false) {\n    /**\n     * The host or anchor [element](guide/glossary#element) for this component instance.\n     * @abstract\n     * @return {?}\n     */\n    ComponentRef.prototype.location = function () { };\n    /**\n     * The [dependency injector](guide/glossary#injector) for this component instance.\n     * @abstract\n     * @return {?}\n     */\n    ComponentRef.prototype.injector = function () { };\n    /**\n     * This component instance.\n     * @abstract\n     * @return {?}\n     */\n    ComponentRef.prototype.instance = function () { };\n    /**\n     * The [host view](guide/glossary#view-tree) defined by the template\n     * for this component instance.\n     * @abstract\n     * @return {?}\n     */\n    ComponentRef.prototype.hostView = function () { };\n    /**\n     * The change detector for this component instance.\n     * @abstract\n     * @return {?}\n     */\n    ComponentRef.prototype.changeDetectorRef = function () { };\n    /**\n     * The type of this component (as created by a `ComponentFactory` class).\n     * @abstract\n     * @return {?}\n     */\n    ComponentRef.prototype.componentType = function () { };\n    /**\n     * Destroys the component instance and all of the data structures associated with it.\n     * @abstract\n     * @return {?}\n     */\n    ComponentRef.prototype.destroy = function () { };\n    /**\n     * A lifecycle hook that provides additional developer-defined cleanup\n     * functionality for the component.\n     * @abstract\n     * @param {?} callback A handler function that cleans up developer-defined data\n     * associated with this component. Called when the `destroy()` method is invoked.\n     * @return {?}\n     */\n    ComponentRef.prototype.onDestroy = function (callback) { };\n}\n/**\n * Base class for a factory that can create a component dynamically.\n * Instantiate a factory for a given type of component with `resolveComponentFactory()`.\n * Use the resulting `ComponentFactory.create()` method to create a component of that type.\n *\n * @see [Dynamic Components](guide/dynamic-component-loader)\n *\n * \\@publicApi\n * @abstract\n * @template C\n */\nclass ComponentFactory {\n}\nif (false) {\n    /**\n     * The component's HTML selector.\n     * @abstract\n     * @return {?}\n     */\n    ComponentFactory.prototype.selector = function () { };\n    /**\n     * The type of component the factory will create.\n     * @abstract\n     * @return {?}\n     */\n    ComponentFactory.prototype.componentType = function () { };\n    /**\n     * Selector for all <ng-content> elements in the component.\n     * @abstract\n     * @return {?}\n     */\n    ComponentFactory.prototype.ngContentSelectors = function () { };\n    /**\n     * The inputs of the component.\n     * @abstract\n     * @return {?}\n     */\n    ComponentFactory.prototype.inputs = function () { };\n    /**\n     * The outputs of the component.\n     * @abstract\n     * @return {?}\n     */\n    ComponentFactory.prototype.outputs = function () { };\n    /**\n     * Creates a new component.\n     * @abstract\n     * @param {?} injector\n     * @param {?=} projectableNodes\n     * @param {?=} rootSelectorOrNode\n     * @param {?=} ngModule\n     * @return {?}\n     */\n    ComponentFactory.prototype.create = function (injector, projectableNodes, rootSelectorOrNode, ngModule) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/component_factory_resolver.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} component\n * @return {?}\n */\nfunction noComponentFactoryError(component) {\n    /** @type {?} */\n    const error = Error(`No component factory found for ${stringify(component)}. Did you add it to @NgModule.entryComponents?`);\n    ((/** @type {?} */ (error)))[ERROR_COMPONENT] = component;\n    return error;\n}\n/** @type {?} */\nconst ERROR_COMPONENT = 'ngComponent';\n/**\n * @param {?} error\n * @return {?}\n */\nfunction getComponent$1(error) {\n    return ((/** @type {?} */ (error)))[ERROR_COMPONENT];\n}\nclass _NullComponentFactoryResolver {\n    /**\n     * @template T\n     * @param {?} component\n     * @return {?}\n     */\n    resolveComponentFactory(component) {\n        throw noComponentFactoryError(component);\n    }\n}\n/**\n * A simple registry that maps `Components` to generated `ComponentFactory` classes\n * that can be used to create instances of components.\n * Use to obtain the factory for a given component type,\n * then use the factory's `create()` method to create a component of that type.\n *\n * @see [Dynamic Components](guide/dynamic-component-loader)\n * \\@publicApi\n * @abstract\n */\nclass ComponentFactoryResolver {\n}\nComponentFactoryResolver.NULL = new _NullComponentFactoryResolver();\nif (false) {\n    /** @type {?} */\n    ComponentFactoryResolver.NULL;\n    /**\n     * Retrieves the factory object that creates a component of the given type.\n     * @abstract\n     * @template T\n     * @param {?} component The component type.\n     * @return {?}\n     */\n    ComponentFactoryResolver.prototype.resolveComponentFactory = function (component) { };\n}\nclass CodegenComponentFactoryResolver {\n    /**\n     * @param {?} factories\n     * @param {?} _parent\n     * @param {?} _ngModule\n     */\n    constructor(factories, _parent, _ngModule) {\n        this._parent = _parent;\n        this._ngModule = _ngModule;\n        this._factories = new Map();\n        for (let i = 0; i < factories.length; i++) {\n            /** @type {?} */\n            const factory = factories[i];\n            this._factories.set(factory.componentType, factory);\n        }\n    }\n    /**\n     * @template T\n     * @param {?} component\n     * @return {?}\n     */\n    resolveComponentFactory(component) {\n        /** @type {?} */\n        let factory = this._factories.get(component);\n        if (!factory && this._parent) {\n            factory = this._parent.resolveComponentFactory(component);\n        }\n        if (!factory) {\n            throw noComponentFactoryError(component);\n        }\n        return new ComponentFactoryBoundToModule(factory, this._ngModule);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CodegenComponentFactoryResolver.prototype._factories;\n    /**\n     * @type {?}\n     * @private\n     */\n    CodegenComponentFactoryResolver.prototype._parent;\n    /**\n     * @type {?}\n     * @private\n     */\n    CodegenComponentFactoryResolver.prototype._ngModule;\n}\n/**\n * @template C\n */\nclass ComponentFactoryBoundToModule extends ComponentFactory {\n    /**\n     * @param {?} factory\n     * @param {?} ngModule\n     */\n    constructor(factory, ngModule) {\n        super();\n        this.factory = factory;\n        this.ngModule = ngModule;\n        this.selector = factory.selector;\n        this.componentType = factory.componentType;\n        this.ngContentSelectors = factory.ngContentSelectors;\n        this.inputs = factory.inputs;\n        this.outputs = factory.outputs;\n    }\n    /**\n     * @param {?} injector\n     * @param {?=} projectableNodes\n     * @param {?=} rootSelectorOrNode\n     * @param {?=} ngModule\n     * @return {?}\n     */\n    create(injector, projectableNodes, rootSelectorOrNode, ngModule) {\n        return this.factory.create(injector, projectableNodes, rootSelectorOrNode, ngModule || this.ngModule);\n    }\n}\nif (false) {\n    /** @type {?} */\n    ComponentFactoryBoundToModule.prototype.selector;\n    /** @type {?} */\n    ComponentFactoryBoundToModule.prototype.componentType;\n    /** @type {?} */\n    ComponentFactoryBoundToModule.prototype.ngContentSelectors;\n    /** @type {?} */\n    ComponentFactoryBoundToModule.prototype.inputs;\n    /** @type {?} */\n    ComponentFactoryBoundToModule.prototype.outputs;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentFactoryBoundToModule.prototype.factory;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentFactoryBoundToModule.prototype.ngModule;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction noop(...args) {\n    // Do nothing.\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/element_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A wrapper around a native element inside of a View.\n *\n * An `ElementRef` is backed by a render-specific element. In the browser, this is usually a DOM\n * element.\n *\n * \\@security Permitting direct access to the DOM can make your application more vulnerable to\n * XSS attacks. Carefully review any use of `ElementRef` in your code. For more detail, see the\n * [Security Guide](http://g.co/ng/security).\n *\n * \\@publicApi\n * @template T\n */\n// Note: We don't expose things like `Injector`, `ViewContainer`, ... here,\n// i.e. users have to ask for what they need. With that, we can build better analysis tools\n// and could do better codegen in the future.\nclass ElementRef {\n    /**\n     * @param {?} nativeElement\n     */\n    constructor(nativeElement) {\n        this.nativeElement = nativeElement;\n    }\n}\n/**\n * \\@internal\n * @nocollapse\n */\nElementRef.__NG_ELEMENT_ID__ = (/**\n * @return {?}\n */\n() => SWITCH_ELEMENT_REF_FACTORY(ElementRef));\nif (false) {\n    /**\n     * \\@internal\n     * @nocollapse\n     * @type {?}\n     */\n    ElementRef.__NG_ELEMENT_ID__;\n    /**\n     * The underlying native element or `null` if direct access to native elements is not supported\n     * (e.g. when the application runs in a web worker).\n     *\n     * <div class=\"callout is-critical\">\n     *   <header>Use with caution</header>\n     *   <p>\n     *    Use this API as the last resort when direct access to DOM is needed. Use templating and\n     *    data-binding provided by Angular instead. Alternatively you can take a look at {\\@link\n     * Renderer2}\n     *    which provides API that can safely be used even when direct access to native elements is not\n     *    supported.\n     *   </p>\n     *   <p>\n     *    Relying on direct DOM access creates tight coupling between your application and rendering\n     *    layers which will make it impossible to separate the two and deploy your application into a\n     *    web worker.\n     *   </p>\n     * </div>\n     *\n     * @type {?}\n     */\n    ElementRef.prototype.nativeElement;\n}\n/** @type {?} */\nconst SWITCH_ELEMENT_REF_FACTORY__POST_R3__ = injectElementRef;\n/** @type {?} */\nconst SWITCH_ELEMENT_REF_FACTORY__PRE_R3__ = noop;\n/** @type {?} */\nconst SWITCH_ELEMENT_REF_FACTORY = SWITCH_ELEMENT_REF_FACTORY__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render/api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst Renderer2Interceptor = new InjectionToken('Renderer2Interceptor');\n/**\n * Used by `RendererFactory2` to associate custom rendering data and styles\n * with a rendering implementation.\n * \\@publicApi\n * @record\n */\nfunction RendererType2() { }\nif (false) {\n    /**\n     * A unique identifying string for the new renderer, used when creating\n     * unique styles for encapsulation.\n     * @type {?}\n     */\n    RendererType2.prototype.id;\n    /**\n     * The view encapsulation type, which determines how styles are applied to\n     * DOM elements. One of\n     * - `Emulated` (default): Emulate native scoping of styles.\n     * - `Native`: Use the native encapsulation mechanism of the renderer.\n     * - `ShadowDom`: Use modern [Shadow\n     * DOM](https://w3c.github.io/webcomponents/spec/shadow/) and\n     * create a ShadowRoot for component's host element.\n     * - `None`: Do not provide any template or style encapsulation.\n     * @type {?}\n     */\n    RendererType2.prototype.encapsulation;\n    /**\n     * Defines CSS styles to be stored on a renderer instance.\n     * @type {?}\n     */\n    RendererType2.prototype.styles;\n    /**\n     * Defines arbitrary developer-defined data to be stored on a renderer instance.\n     * This is useful for renderers that delegate to other renderers.\n     * @type {?}\n     */\n    RendererType2.prototype.data;\n}\n/**\n * Creates and initializes a custom renderer that implements the `Renderer2` base class.\n *\n * \\@publicApi\n * @abstract\n */\nclass RendererFactory2 {\n}\nif (false) {\n    /**\n     * Creates and initializes a custom renderer for a host DOM element.\n     * @abstract\n     * @param {?} hostElement The element to render.\n     * @param {?} type The base class to implement.\n     * @return {?} The new custom renderer instance.\n     */\n    RendererFactory2.prototype.createRenderer = function (hostElement, type) { };\n    /**\n     * A callback invoked when rendering has begun.\n     * @abstract\n     * @return {?}\n     */\n    RendererFactory2.prototype.begin = function () { };\n    /**\n     * A callback invoked when rendering has completed.\n     * @abstract\n     * @return {?}\n     */\n    RendererFactory2.prototype.end = function () { };\n    /**\n     * Use with animations test-only mode. Notifies the test when rendering has completed.\n     * @abstract\n     * @return {?} The asynchronous result of the developer-defined function.\n     */\n    RendererFactory2.prototype.whenRenderingDone = function () { };\n}\n/** @enum {number} */\nconst RendererStyleFlags2 = {\n    // TODO(misko): This needs to be refactored into a separate file so that it can be imported from\n    // `node_manipulation.ts` Currently doing the import cause resolution order to change and fails\n    // the tests. The work around is to have hard coded value in `node_manipulation.ts` for now.\n    /**\n     * Marks a style as important.\n     */\n    Important: 1,\n    /**\n     * Marks a style as using dash case naming (this-is-dash-case).\n     */\n    DashCase: 2,\n};\nRendererStyleFlags2[RendererStyleFlags2.Important] = 'Important';\nRendererStyleFlags2[RendererStyleFlags2.DashCase] = 'DashCase';\n/**\n * Extend this base class to implement custom rendering. By default, Angular\n * renders a template into DOM. You can use custom rendering to intercept\n * rendering calls, or to render to something other than DOM.\n *\n * Create your custom renderer using `RendererFactory2`.\n *\n * Use a custom renderer to bypass Angular's templating and\n * make custom UI changes that can't be expressed declaratively.\n * For example if you need to set a property or an attribute whose name is\n * not statically known, use the `setProperty()` or\n * `setAttribute()` method.\n *\n * \\@publicApi\n * @abstract\n */\nclass Renderer2 {\n}\n/**\n * \\@internal\n * @nocollapse\n */\nRenderer2.__NG_ELEMENT_ID__ = (/**\n * @return {?}\n */\n() => SWITCH_RENDERER2_FACTORY());\nif (false) {\n    /**\n     * \\@internal\n     * @nocollapse\n     * @type {?}\n     */\n    Renderer2.__NG_ELEMENT_ID__;\n    /**\n     * If null or undefined, the view engine won't call it.\n     * This is used as a performance optimization for production mode.\n     * @type {?}\n     */\n    Renderer2.prototype.destroyNode;\n    /**\n     * Use to store arbitrary developer-defined data on a renderer instance,\n     * as an object containing key-value pairs.\n     * This is useful for renderers that delegate to other renderers.\n     * @abstract\n     * @return {?}\n     */\n    Renderer2.prototype.data = function () { };\n    /**\n     * Implement this callback to destroy the renderer or the host element.\n     * @abstract\n     * @return {?}\n     */\n    Renderer2.prototype.destroy = function () { };\n    /**\n     * Implement this callback to create an instance of the host element.\n     * @abstract\n     * @param {?} name An identifying name for the new element, unique within the namespace.\n     * @param {?=} namespace The namespace for the new element.\n     * @return {?} The new element.\n     */\n    Renderer2.prototype.createElement = function (name, namespace) { };\n    /**\n     * Implement this callback to add a comment to the DOM of the host element.\n     * @abstract\n     * @param {?} value The comment text.\n     * @return {?} The modified element.\n     */\n    Renderer2.prototype.createComment = function (value) { };\n    /**\n     * Implement this callback to add text to the DOM of the host element.\n     * @abstract\n     * @param {?} value The text string.\n     * @return {?} The modified element.\n     */\n    Renderer2.prototype.createText = function (value) { };\n    /**\n     * Appends a child to a given parent node in the host element DOM.\n     * @abstract\n     * @param {?} parent The parent node.\n     * @param {?} newChild The new child node.\n     * @return {?}\n     */\n    Renderer2.prototype.appendChild = function (parent, newChild) { };\n    /**\n     * Implement this callback to insert a child node at a given position in a parent node\n     * in the host element DOM.\n     * @abstract\n     * @param {?} parent The parent node.\n     * @param {?} newChild The new child nodes.\n     * @param {?} refChild The existing child node before which `newChild` is inserted.\n     * @return {?}\n     */\n    Renderer2.prototype.insertBefore = function (parent, newChild, refChild) { };\n    /**\n     * Implement this callback to remove a child node from the host element's DOM.\n     * @abstract\n     * @param {?} parent The parent node.\n     * @param {?} oldChild The child node to remove.\n     * @param {?=} isHostElement Optionally signal to the renderer whether this element is a host element\n     * or not\n     * @return {?}\n     */\n    Renderer2.prototype.removeChild = function (parent, oldChild, isHostElement) { };\n    /**\n     * Implement this callback to prepare an element to be bootstrapped\n     * as a root element, and return the element instance.\n     * @abstract\n     * @param {?} selectorOrNode The DOM element.\n     * @param {?=} preserveContent Whether the contents of the root element\n     * should be preserved, or cleared upon bootstrap (default behavior).\n     * Use with `ViewEncapsulation.ShadowDom` to allow simple native\n     * content projection via `<slot>` elements.\n     * @return {?} The root element.\n     */\n    Renderer2.prototype.selectRootElement = function (selectorOrNode, preserveContent) { };\n    /**\n     * Implement this callback to get the parent of a given node\n     * in the host element's DOM.\n     * @abstract\n     * @param {?} node The child node to query.\n     * @return {?} The parent node, or null if there is no parent.\n     * For WebWorkers, always returns true.\n     * This is because the check is synchronous,\n     * and the caller can't rely on checking for null.\n     */\n    Renderer2.prototype.parentNode = function (node) { };\n    /**\n     * Implement this callback to get the next sibling node of a given node\n     * in the host element's DOM.\n     * @abstract\n     * @param {?} node\n     * @return {?} The sibling node, or null if there is no sibling.\n     * For WebWorkers, always returns a value.\n     * This is because the check is synchronous,\n     * and the caller can't rely on checking for null.\n     */\n    Renderer2.prototype.nextSibling = function (node) { };\n    /**\n     * Implement this callback to set an attribute value for an element in the DOM.\n     * @abstract\n     * @param {?} el The element.\n     * @param {?} name The attribute name.\n     * @param {?} value The new value.\n     * @param {?=} namespace The namespace.\n     * @return {?}\n     */\n    Renderer2.prototype.setAttribute = function (el, name, value, namespace) { };\n    /**\n     * Implement this callback to remove an attribute from an element in the DOM.\n     * @abstract\n     * @param {?} el The element.\n     * @param {?} name The attribute name.\n     * @param {?=} namespace The namespace.\n     * @return {?}\n     */\n    Renderer2.prototype.removeAttribute = function (el, name, namespace) { };\n    /**\n     * Implement this callback to add a class to an element in the DOM.\n     * @abstract\n     * @param {?} el The element.\n     * @param {?} name The class name.\n     * @return {?}\n     */\n    Renderer2.prototype.addClass = function (el, name) { };\n    /**\n     * Implement this callback to remove a class from an element in the DOM.\n     * @abstract\n     * @param {?} el The element.\n     * @param {?} name The class name.\n     * @return {?}\n     */\n    Renderer2.prototype.removeClass = function (el, name) { };\n    /**\n     * Implement this callback to set a CSS style for an element in the DOM.\n     * @abstract\n     * @param {?} el The element.\n     * @param {?} style The name of the style.\n     * @param {?} value The new value.\n     * @param {?=} flags Flags for style variations. No flags are set by default.\n     * @return {?}\n     */\n    Renderer2.prototype.setStyle = function (el, style, value, flags) { };\n    /**\n     * Implement this callback to remove the value from a CSS style for an element in the DOM.\n     * @abstract\n     * @param {?} el The element.\n     * @param {?} style The name of the style.\n     * @param {?=} flags Flags for style variations to remove, if set. ???\n     * @return {?}\n     */\n    Renderer2.prototype.removeStyle = function (el, style, flags) { };\n    /**\n     * Implement this callback to set the value of a property of an element in the DOM.\n     * @abstract\n     * @param {?} el The element.\n     * @param {?} name The property name.\n     * @param {?} value The new value.\n     * @return {?}\n     */\n    Renderer2.prototype.setProperty = function (el, name, value) { };\n    /**\n     * Implement this callback to set the value of a node in the host element.\n     * @abstract\n     * @param {?} node The node.\n     * @param {?} value The new value.\n     * @return {?}\n     */\n    Renderer2.prototype.setValue = function (node, value) { };\n    /**\n     * Implement this callback to start an event listener.\n     * @abstract\n     * @param {?} target The context in which to listen for events. Can be\n     * the entire window or document, the body of the document, or a specific\n     * DOM element.\n     * @param {?} eventName The event to listen for.\n     * @param {?} callback A handler function to invoke when the event occurs.\n     * @return {?} An \"unlisten\" function for disposing of this handler.\n     */\n    Renderer2.prototype.listen = function (target, eventName, callback) { };\n}\n/** @type {?} */\nconst SWITCH_RENDERER2_FACTORY__POST_R3__ = injectRenderer2;\n/** @type {?} */\nconst SWITCH_RENDERER2_FACTORY__PRE_R3__ = noop;\n/** @type {?} */\nconst SWITCH_RENDERER2_FACTORY = SWITCH_RENDERER2_FACTORY__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/sanitization/sanitizer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Sanitizer is used by the views to sanitize potentially dangerous values.\n *\n * \\@publicApi\n * @abstract\n */\nclass Sanitizer {\n}\n/** @nocollapse */\nSanitizer.ɵprov = ɵɵdefineInjectable({\n    token: Sanitizer,\n    providedIn: 'root',\n    factory: (/**\n     * @return {?}\n     */\n    () => null),\n});\nif (false) {\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    Sanitizer.ɵprov;\n    /**\n     * @abstract\n     * @param {?} context\n     * @param {?} value\n     * @return {?}\n     */\n    Sanitizer.prototype.sanitize = function (context, value) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/version.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * \\@description Represents the version of Angular\n *\n * \\@publicApi\n */\nclass Version {\n    /**\n     * @param {?} full\n     */\n    constructor(full) {\n        this.full = full;\n        this.major = full.split('.')[0];\n        this.minor = full.split('.')[1];\n        this.patch = full.split('.').slice(2).join('.');\n    }\n}\nif (false) {\n    /** @type {?} */\n    Version.prototype.major;\n    /** @type {?} */\n    Version.prototype.minor;\n    /** @type {?} */\n    Version.prototype.patch;\n    /** @type {?} */\n    Version.prototype.full;\n}\n/**\n * \\@publicApi\n * @type {?}\n */\nconst VERSION = new Version('9.1.9');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/differs/default_iterable_differ.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass DefaultIterableDifferFactory {\n    constructor() { }\n    /**\n     * @param {?} obj\n     * @return {?}\n     */\n    supports(obj) {\n        return isListLikeIterable$1(obj);\n    }\n    /**\n     * @template V\n     * @param {?=} trackByFn\n     * @return {?}\n     */\n    create(trackByFn) {\n        return new DefaultIterableDiffer(trackByFn);\n    }\n}\n/** @type {?} */\nconst trackByIdentity = (/**\n * @param {?} index\n * @param {?} item\n * @return {?}\n */\n(index, item) => item);\nconst ɵ0$c = trackByIdentity;\n/**\n * @deprecated v4.0.0 - Should not be part of public API.\n * \\@publicApi\n * @template V\n */\nclass DefaultIterableDiffer {\n    /**\n     * @param {?=} trackByFn\n     */\n    constructor(trackByFn) {\n        this.length = 0;\n        // Keeps track of the used records at any point in time (during & across `_check()` calls)\n        this._linkedRecords = null;\n        // Keeps track of the removed records at any point in time during `_check()` calls.\n        this._unlinkedRecords = null;\n        this._previousItHead = null;\n        this._itHead = null;\n        this._itTail = null;\n        this._additionsHead = null;\n        this._additionsTail = null;\n        this._movesHead = null;\n        this._movesTail = null;\n        this._removalsHead = null;\n        this._removalsTail = null;\n        // Keeps track of records where custom track by is the same, but item identity has changed\n        this._identityChangesHead = null;\n        this._identityChangesTail = null;\n        this._trackByFn = trackByFn || trackByIdentity;\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._itHead; record !== null; record = record._next) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachOperation(fn) {\n        /** @type {?} */\n        let nextIt = this._itHead;\n        /** @type {?} */\n        let nextRemove = this._removalsHead;\n        /** @type {?} */\n        let addRemoveOffset = 0;\n        /** @type {?} */\n        let moveOffsets = null;\n        while (nextIt || nextRemove) {\n            // Figure out which is the next record to process\n            // Order: remove, add, move\n            /** @type {?} */\n            const record = !nextRemove ||\n                nextIt &&\n                    (/** @type {?} */ (nextIt.currentIndex)) <\n                        getPreviousIndex(nextRemove, addRemoveOffset, moveOffsets) ?\n                (/** @type {?} */ (nextIt)) :\n                nextRemove;\n            /** @type {?} */\n            const adjPreviousIndex = getPreviousIndex(record, addRemoveOffset, moveOffsets);\n            /** @type {?} */\n            const currentIndex = record.currentIndex;\n            // consume the item, and adjust the addRemoveOffset and update moveDistance if necessary\n            if (record === nextRemove) {\n                addRemoveOffset--;\n                nextRemove = nextRemove._nextRemoved;\n            }\n            else {\n                nextIt = (/** @type {?} */ (nextIt))._next;\n                if (record.previousIndex == null) {\n                    addRemoveOffset++;\n                }\n                else {\n                    // INVARIANT:  currentIndex < previousIndex\n                    if (!moveOffsets)\n                        moveOffsets = [];\n                    /** @type {?} */\n                    const localMovePreviousIndex = adjPreviousIndex - addRemoveOffset;\n                    /** @type {?} */\n                    const localCurrentIndex = (/** @type {?} */ (currentIndex)) - addRemoveOffset;\n                    if (localMovePreviousIndex != localCurrentIndex) {\n                        for (let i = 0; i < localMovePreviousIndex; i++) {\n                            /** @type {?} */\n                            const offset = i < moveOffsets.length ? moveOffsets[i] : (moveOffsets[i] = 0);\n                            /** @type {?} */\n                            const index = offset + i;\n                            if (localCurrentIndex <= index && index < localMovePreviousIndex) {\n                                moveOffsets[i] = offset + 1;\n                            }\n                        }\n                        /** @type {?} */\n                        const previousIndex = record.previousIndex;\n                        moveOffsets[previousIndex] = localCurrentIndex - localMovePreviousIndex;\n                    }\n                }\n            }\n            if (adjPreviousIndex !== currentIndex) {\n                fn(record, adjPreviousIndex, currentIndex);\n            }\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachPreviousItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._previousItHead; record !== null; record = record._nextPrevious) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachAddedItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._additionsHead; record !== null; record = record._nextAdded) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachMovedItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._movesHead; record !== null; record = record._nextMoved) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachRemovedItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._removalsHead; record !== null; record = record._nextRemoved) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachIdentityChange(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._identityChangesHead; record !== null; record = record._nextIdentityChange) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} collection\n     * @return {?}\n     */\n    diff(collection) {\n        if (collection == null)\n            collection = [];\n        if (!isListLikeIterable$1(collection)) {\n            throw new Error(`Error trying to diff '${stringify(collection)}'. Only arrays and iterables are allowed`);\n        }\n        if (this.check(collection)) {\n            return this;\n        }\n        else {\n            return null;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    onDestroy() { }\n    /**\n     * @param {?} collection\n     * @return {?}\n     */\n    check(collection) {\n        this._reset();\n        /** @type {?} */\n        let record = this._itHead;\n        /** @type {?} */\n        let mayBeDirty = false;\n        /** @type {?} */\n        let index;\n        /** @type {?} */\n        let item;\n        /** @type {?} */\n        let itemTrackBy;\n        if (Array.isArray(collection)) {\n            ((/** @type {?} */ (this))).length = collection.length;\n            for (let index = 0; index < this.length; index++) {\n                item = collection[index];\n                itemTrackBy = this._trackByFn(index, item);\n                if (record === null || !looseIdentical(record.trackById, itemTrackBy)) {\n                    record = this._mismatch(record, item, itemTrackBy, index);\n                    mayBeDirty = true;\n                }\n                else {\n                    if (mayBeDirty) {\n                        // TODO(misko): can we limit this to duplicates only?\n                        record = this._verifyReinsertion(record, item, itemTrackBy, index);\n                    }\n                    if (!looseIdentical(record.item, item))\n                        this._addIdentityChange(record, item);\n                }\n                record = record._next;\n            }\n        }\n        else {\n            index = 0;\n            iterateListLike$1(collection, (/**\n             * @param {?} item\n             * @return {?}\n             */\n            (item) => {\n                itemTrackBy = this._trackByFn(index, item);\n                if (record === null || !looseIdentical(record.trackById, itemTrackBy)) {\n                    record = this._mismatch(record, item, itemTrackBy, index);\n                    mayBeDirty = true;\n                }\n                else {\n                    if (mayBeDirty) {\n                        // TODO(misko): can we limit this to duplicates only?\n                        record = this._verifyReinsertion(record, item, itemTrackBy, index);\n                    }\n                    if (!looseIdentical(record.item, item))\n                        this._addIdentityChange(record, item);\n                }\n                record = record._next;\n                index++;\n            }));\n            ((/** @type {?} */ (this))).length = index;\n        }\n        this._truncate(record);\n        ((/** @type {?} */ (this))).collection = collection;\n        return this.isDirty;\n    }\n    /* CollectionChanges is considered dirty if it has any additions, moves, removals, or identity\n       * changes.\n       */\n    /**\n     * @return {?}\n     */\n    get isDirty() {\n        return this._additionsHead !== null || this._movesHead !== null ||\n            this._removalsHead !== null || this._identityChangesHead !== null;\n    }\n    /**\n     * Reset the state of the change objects to show no changes. This means set previousKey to\n     * currentKey, and clear all of the queues (additions, moves, removals).\n     * Set the previousIndexes of moved and added items to their currentIndexes\n     * Reset the list of additions, moves and removals\n     *\n     * \\@internal\n     * @return {?}\n     */\n    _reset() {\n        if (this.isDirty) {\n            /** @type {?} */\n            let record;\n            /** @type {?} */\n            let nextRecord;\n            for (record = this._previousItHead = this._itHead; record !== null; record = record._next) {\n                record._nextPrevious = record._next;\n            }\n            for (record = this._additionsHead; record !== null; record = record._nextAdded) {\n                record.previousIndex = record.currentIndex;\n            }\n            this._additionsHead = this._additionsTail = null;\n            for (record = this._movesHead; record !== null; record = nextRecord) {\n                record.previousIndex = record.currentIndex;\n                nextRecord = record._nextMoved;\n            }\n            this._movesHead = this._movesTail = null;\n            this._removalsHead = this._removalsTail = null;\n            this._identityChangesHead = this._identityChangesTail = null;\n            // TODO(vicb): when assert gets supported\n            // assert(!this.isDirty);\n        }\n    }\n    /**\n     * This is the core function which handles differences between collections.\n     *\n     * - `record` is the record which we saw at this position last time. If null then it is a new\n     *   item.\n     * - `item` is the current item in the collection\n     * - `index` is the position of the item in the collection\n     *\n     * \\@internal\n     * @param {?} record\n     * @param {?} item\n     * @param {?} itemTrackBy\n     * @param {?} index\n     * @return {?}\n     */\n    _mismatch(record, item, itemTrackBy, index) {\n        // The previous record after which we will append the current one.\n        /** @type {?} */\n        let previousRecord;\n        if (record === null) {\n            previousRecord = this._itTail;\n        }\n        else {\n            previousRecord = record._prev;\n            // Remove the record from the collection since we know it does not match the item.\n            this._remove(record);\n        }\n        // Attempt to see if we have seen the item before.\n        record = this._linkedRecords === null ? null : this._linkedRecords.get(itemTrackBy, index);\n        if (record !== null) {\n            // We have seen this before, we need to move it forward in the collection.\n            // But first we need to check if identity changed, so we can update in view if necessary\n            if (!looseIdentical(record.item, item))\n                this._addIdentityChange(record, item);\n            this._moveAfter(record, previousRecord, index);\n        }\n        else {\n            // Never seen it, check evicted list.\n            record = this._unlinkedRecords === null ? null : this._unlinkedRecords.get(itemTrackBy, null);\n            if (record !== null) {\n                // It is an item which we have evicted earlier: reinsert it back into the list.\n                // But first we need to check if identity changed, so we can update in view if necessary\n                if (!looseIdentical(record.item, item))\n                    this._addIdentityChange(record, item);\n                this._reinsertAfter(record, previousRecord, index);\n            }\n            else {\n                // It is a new item: add it.\n                record =\n                    this._addAfter(new IterableChangeRecord_(item, itemTrackBy), previousRecord, index);\n            }\n        }\n        return record;\n    }\n    /**\n     * This check is only needed if an array contains duplicates. (Short circuit of nothing dirty)\n     *\n     * Use case: `[a, a]` => `[b, a, a]`\n     *\n     * If we did not have this check then the insertion of `b` would:\n     *   1) evict first `a`\n     *   2) insert `b` at `0` index.\n     *   3) leave `a` at index `1` as is. <-- this is wrong!\n     *   3) reinsert `a` at index 2. <-- this is wrong!\n     *\n     * The correct behavior is:\n     *   1) evict first `a`\n     *   2) insert `b` at `0` index.\n     *   3) reinsert `a` at index 1.\n     *   3) move `a` at from `1` to `2`.\n     *\n     *\n     * Double check that we have not evicted a duplicate item. We need to check if the item type may\n     * have already been removed:\n     * The insertion of b will evict the first 'a'. If we don't reinsert it now it will be reinserted\n     * at the end. Which will show up as the two 'a's switching position. This is incorrect, since a\n     * better way to think of it is as insert of 'b' rather then switch 'a' with 'b' and then add 'a'\n     * at the end.\n     *\n     * \\@internal\n     * @param {?} record\n     * @param {?} item\n     * @param {?} itemTrackBy\n     * @param {?} index\n     * @return {?}\n     */\n    _verifyReinsertion(record, item, itemTrackBy, index) {\n        /** @type {?} */\n        let reinsertRecord = this._unlinkedRecords === null ? null : this._unlinkedRecords.get(itemTrackBy, null);\n        if (reinsertRecord !== null) {\n            record = this._reinsertAfter(reinsertRecord, (/** @type {?} */ (record._prev)), index);\n        }\n        else if (record.currentIndex != index) {\n            record.currentIndex = index;\n            this._addToMoves(record, index);\n        }\n        return record;\n    }\n    /**\n     * Get rid of any excess {\\@link IterableChangeRecord_}s from the previous collection\n     *\n     * - `record` The first excess {\\@link IterableChangeRecord_}.\n     *\n     * \\@internal\n     * @param {?} record\n     * @return {?}\n     */\n    _truncate(record) {\n        // Anything after that needs to be removed;\n        while (record !== null) {\n            /** @type {?} */\n            const nextRecord = record._next;\n            this._addToRemovals(this._unlink(record));\n            record = nextRecord;\n        }\n        if (this._unlinkedRecords !== null) {\n            this._unlinkedRecords.clear();\n        }\n        if (this._additionsTail !== null) {\n            this._additionsTail._nextAdded = null;\n        }\n        if (this._movesTail !== null) {\n            this._movesTail._nextMoved = null;\n        }\n        if (this._itTail !== null) {\n            this._itTail._next = null;\n        }\n        if (this._removalsTail !== null) {\n            this._removalsTail._nextRemoved = null;\n        }\n        if (this._identityChangesTail !== null) {\n            this._identityChangesTail._nextIdentityChange = null;\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @param {?} prevRecord\n     * @param {?} index\n     * @return {?}\n     */\n    _reinsertAfter(record, prevRecord, index) {\n        if (this._unlinkedRecords !== null) {\n            this._unlinkedRecords.remove(record);\n        }\n        /** @type {?} */\n        const prev = record._prevRemoved;\n        /** @type {?} */\n        const next = record._nextRemoved;\n        if (prev === null) {\n            this._removalsHead = next;\n        }\n        else {\n            prev._nextRemoved = next;\n        }\n        if (next === null) {\n            this._removalsTail = prev;\n        }\n        else {\n            next._prevRemoved = prev;\n        }\n        this._insertAfter(record, prevRecord, index);\n        this._addToMoves(record, index);\n        return record;\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @param {?} prevRecord\n     * @param {?} index\n     * @return {?}\n     */\n    _moveAfter(record, prevRecord, index) {\n        this._unlink(record);\n        this._insertAfter(record, prevRecord, index);\n        this._addToMoves(record, index);\n        return record;\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @param {?} prevRecord\n     * @param {?} index\n     * @return {?}\n     */\n    _addAfter(record, prevRecord, index) {\n        this._insertAfter(record, prevRecord, index);\n        if (this._additionsTail === null) {\n            // TODO(vicb):\n            // assert(this._additionsHead === null);\n            this._additionsTail = this._additionsHead = record;\n        }\n        else {\n            // TODO(vicb):\n            // assert(_additionsTail._nextAdded === null);\n            // assert(record._nextAdded === null);\n            this._additionsTail = this._additionsTail._nextAdded = record;\n        }\n        return record;\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @param {?} prevRecord\n     * @param {?} index\n     * @return {?}\n     */\n    _insertAfter(record, prevRecord, index) {\n        // TODO(vicb):\n        // assert(record != prevRecord);\n        // assert(record._next === null);\n        // assert(record._prev === null);\n        // TODO(vicb):\n        // assert(record != prevRecord);\n        // assert(record._next === null);\n        // assert(record._prev === null);\n        /** @type {?} */\n        const next = prevRecord === null ? this._itHead : prevRecord._next;\n        // TODO(vicb):\n        // assert(next != record);\n        // assert(prevRecord != record);\n        record._next = next;\n        record._prev = prevRecord;\n        if (next === null) {\n            this._itTail = record;\n        }\n        else {\n            next._prev = record;\n        }\n        if (prevRecord === null) {\n            this._itHead = record;\n        }\n        else {\n            prevRecord._next = record;\n        }\n        if (this._linkedRecords === null) {\n            this._linkedRecords = new _DuplicateMap();\n        }\n        this._linkedRecords.put(record);\n        record.currentIndex = index;\n        return record;\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @return {?}\n     */\n    _remove(record) {\n        return this._addToRemovals(this._unlink(record));\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @return {?}\n     */\n    _unlink(record) {\n        if (this._linkedRecords !== null) {\n            this._linkedRecords.remove(record);\n        }\n        /** @type {?} */\n        const prev = record._prev;\n        /** @type {?} */\n        const next = record._next;\n        // TODO(vicb):\n        // assert((record._prev = null) === null);\n        // assert((record._next = null) === null);\n        if (prev === null) {\n            this._itHead = next;\n        }\n        else {\n            prev._next = next;\n        }\n        if (next === null) {\n            this._itTail = prev;\n        }\n        else {\n            next._prev = prev;\n        }\n        return record;\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @param {?} toIndex\n     * @return {?}\n     */\n    _addToMoves(record, toIndex) {\n        // TODO(vicb):\n        // assert(record._nextMoved === null);\n        if (record.previousIndex === toIndex) {\n            return record;\n        }\n        if (this._movesTail === null) {\n            // TODO(vicb):\n            // assert(_movesHead === null);\n            this._movesTail = this._movesHead = record;\n        }\n        else {\n            // TODO(vicb):\n            // assert(_movesTail._nextMoved === null);\n            this._movesTail = this._movesTail._nextMoved = record;\n        }\n        return record;\n    }\n    /**\n     * @private\n     * @param {?} record\n     * @return {?}\n     */\n    _addToRemovals(record) {\n        if (this._unlinkedRecords === null) {\n            this._unlinkedRecords = new _DuplicateMap();\n        }\n        this._unlinkedRecords.put(record);\n        record.currentIndex = null;\n        record._nextRemoved = null;\n        if (this._removalsTail === null) {\n            // TODO(vicb):\n            // assert(_removalsHead === null);\n            this._removalsTail = this._removalsHead = record;\n            record._prevRemoved = null;\n        }\n        else {\n            // TODO(vicb):\n            // assert(_removalsTail._nextRemoved === null);\n            // assert(record._nextRemoved === null);\n            record._prevRemoved = this._removalsTail;\n            this._removalsTail = this._removalsTail._nextRemoved = record;\n        }\n        return record;\n    }\n    /**\n     * \\@internal\n     * @param {?} record\n     * @param {?} item\n     * @return {?}\n     */\n    _addIdentityChange(record, item) {\n        record.item = item;\n        if (this._identityChangesTail === null) {\n            this._identityChangesTail = this._identityChangesHead = record;\n        }\n        else {\n            this._identityChangesTail = this._identityChangesTail._nextIdentityChange = record;\n        }\n        return record;\n    }\n}\nif (false) {\n    /** @type {?} */\n    DefaultIterableDiffer.prototype.length;\n    /** @type {?} */\n    DefaultIterableDiffer.prototype.collection;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._linkedRecords;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._unlinkedRecords;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._previousItHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._itHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._itTail;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._additionsHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._additionsTail;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._movesHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._movesTail;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._removalsHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._removalsTail;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._identityChangesHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._identityChangesTail;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultIterableDiffer.prototype._trackByFn;\n}\n/**\n * @template V\n */\nclass IterableChangeRecord_ {\n    /**\n     * @param {?} item\n     * @param {?} trackById\n     */\n    constructor(item, trackById) {\n        this.item = item;\n        this.trackById = trackById;\n        this.currentIndex = null;\n        this.previousIndex = null;\n        /**\n         * \\@internal\n         */\n        this._nextPrevious = null;\n        /**\n         * \\@internal\n         */\n        this._prev = null;\n        /**\n         * \\@internal\n         */\n        this._next = null;\n        /**\n         * \\@internal\n         */\n        this._prevDup = null;\n        /**\n         * \\@internal\n         */\n        this._nextDup = null;\n        /**\n         * \\@internal\n         */\n        this._prevRemoved = null;\n        /**\n         * \\@internal\n         */\n        this._nextRemoved = null;\n        /**\n         * \\@internal\n         */\n        this._nextAdded = null;\n        /**\n         * \\@internal\n         */\n        this._nextMoved = null;\n        /**\n         * \\@internal\n         */\n        this._nextIdentityChange = null;\n    }\n}\nif (false) {\n    /** @type {?} */\n    IterableChangeRecord_.prototype.currentIndex;\n    /** @type {?} */\n    IterableChangeRecord_.prototype.previousIndex;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._nextPrevious;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._prev;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._next;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._prevDup;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._nextDup;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._prevRemoved;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._nextRemoved;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._nextAdded;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._nextMoved;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    IterableChangeRecord_.prototype._nextIdentityChange;\n    /** @type {?} */\n    IterableChangeRecord_.prototype.item;\n    /** @type {?} */\n    IterableChangeRecord_.prototype.trackById;\n}\n// A linked list of CollectionChangeRecords with the same IterableChangeRecord_.item\n/**\n * @template V\n */\nclass _DuplicateItemRecordList {\n    constructor() {\n        /**\n         * \\@internal\n         */\n        this._head = null;\n        /**\n         * \\@internal\n         */\n        this._tail = null;\n    }\n    /**\n     * Append the record to the list of duplicates.\n     *\n     * Note: by design all records in the list of duplicates hold the same value in record.item.\n     * @param {?} record\n     * @return {?}\n     */\n    add(record) {\n        if (this._head === null) {\n            this._head = this._tail = record;\n            record._nextDup = null;\n            record._prevDup = null;\n        }\n        else {\n            // TODO(vicb):\n            // assert(record.item ==  _head.item ||\n            //       record.item is num && record.item.isNaN && _head.item is num && _head.item.isNaN);\n            (/** @type {?} */ (this._tail))._nextDup = record;\n            record._prevDup = this._tail;\n            record._nextDup = null;\n            this._tail = record;\n        }\n    }\n    // Returns a IterableChangeRecord_ having IterableChangeRecord_.trackById == trackById and\n    // IterableChangeRecord_.currentIndex >= atOrAfterIndex\n    /**\n     * @param {?} trackById\n     * @param {?} atOrAfterIndex\n     * @return {?}\n     */\n    get(trackById, atOrAfterIndex) {\n        /** @type {?} */\n        let record;\n        for (record = this._head; record !== null; record = record._nextDup) {\n            if ((atOrAfterIndex === null || atOrAfterIndex <= (/** @type {?} */ (record.currentIndex))) &&\n                looseIdentical(record.trackById, trackById)) {\n                return record;\n            }\n        }\n        return null;\n    }\n    /**\n     * Remove one {\\@link IterableChangeRecord_} from the list of duplicates.\n     *\n     * Returns whether the list of duplicates is empty.\n     * @param {?} record\n     * @return {?}\n     */\n    remove(record) {\n        // TODO(vicb):\n        // assert(() {\n        //  // verify that the record being removed is in the list.\n        //  for (IterableChangeRecord_ cursor = _head; cursor != null; cursor = cursor._nextDup) {\n        //    if (identical(cursor, record)) return true;\n        //  }\n        //  return false;\n        //});\n        // TODO(vicb):\n        // assert(() {\n        //  // verify that the record being removed is in the list.\n        //  for (IterableChangeRecord_ cursor = _head; cursor != null; cursor = cursor._nextDup) {\n        //    if (identical(cursor, record)) return true;\n        //  }\n        //  return false;\n        //});\n        /** @type {?} */\n        const prev = record._prevDup;\n        /** @type {?} */\n        const next = record._nextDup;\n        if (prev === null) {\n            this._head = next;\n        }\n        else {\n            prev._nextDup = next;\n        }\n        if (next === null) {\n            this._tail = prev;\n        }\n        else {\n            next._prevDup = prev;\n        }\n        return this._head === null;\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    _DuplicateItemRecordList.prototype._head;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    _DuplicateItemRecordList.prototype._tail;\n}\n/**\n * @template V\n */\nclass _DuplicateMap {\n    constructor() {\n        this.map = new Map();\n    }\n    /**\n     * @param {?} record\n     * @return {?}\n     */\n    put(record) {\n        /** @type {?} */\n        const key = record.trackById;\n        /** @type {?} */\n        let duplicates = this.map.get(key);\n        if (!duplicates) {\n            duplicates = new _DuplicateItemRecordList();\n            this.map.set(key, duplicates);\n        }\n        duplicates.add(record);\n    }\n    /**\n     * Retrieve the `value` using key. Because the IterableChangeRecord_ value may be one which we\n     * have already iterated over, we use the `atOrAfterIndex` to pretend it is not there.\n     *\n     * Use case: `[a, b, c, a, a]` if we are at index `3` which is the second `a` then asking if we\n     * have any more `a`s needs to return the second `a`.\n     * @param {?} trackById\n     * @param {?} atOrAfterIndex\n     * @return {?}\n     */\n    get(trackById, atOrAfterIndex) {\n        /** @type {?} */\n        const key = trackById;\n        /** @type {?} */\n        const recordList = this.map.get(key);\n        return recordList ? recordList.get(trackById, atOrAfterIndex) : null;\n    }\n    /**\n     * Removes a {\\@link IterableChangeRecord_} from the list of duplicates.\n     *\n     * The list of duplicates also is removed from the map if it gets empty.\n     * @param {?} record\n     * @return {?}\n     */\n    remove(record) {\n        /** @type {?} */\n        const key = record.trackById;\n        /** @type {?} */\n        const recordList = (/** @type {?} */ (this.map.get(key)));\n        // Remove the list of duplicates when it gets empty\n        if (recordList.remove(record)) {\n            this.map.delete(key);\n        }\n        return record;\n    }\n    /**\n     * @return {?}\n     */\n    get isEmpty() {\n        return this.map.size === 0;\n    }\n    /**\n     * @return {?}\n     */\n    clear() {\n        this.map.clear();\n    }\n}\nif (false) {\n    /** @type {?} */\n    _DuplicateMap.prototype.map;\n}\n/**\n * @param {?} item\n * @param {?} addRemoveOffset\n * @param {?} moveOffsets\n * @return {?}\n */\nfunction getPreviousIndex(item, addRemoveOffset, moveOffsets) {\n    /** @type {?} */\n    const previousIndex = item.previousIndex;\n    if (previousIndex === null)\n        return previousIndex;\n    /** @type {?} */\n    let moveOffset = 0;\n    if (moveOffsets && previousIndex < moveOffsets.length) {\n        moveOffset = moveOffsets[previousIndex];\n    }\n    return previousIndex + addRemoveOffset + moveOffset;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/differs/default_keyvalue_differ.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @template K, V\n */\nclass DefaultKeyValueDifferFactory {\n    constructor() { }\n    /**\n     * @param {?} obj\n     * @return {?}\n     */\n    supports(obj) {\n        return obj instanceof Map || isJsObject$1(obj);\n    }\n    /**\n     * @template K, V\n     * @return {?}\n     */\n    create() {\n        return new DefaultKeyValueDiffer();\n    }\n}\n/**\n * @template K, V\n */\nclass DefaultKeyValueDiffer {\n    constructor() {\n        this._records = new Map();\n        this._mapHead = null;\n        // _appendAfter is used in the check loop\n        this._appendAfter = null;\n        this._previousMapHead = null;\n        this._changesHead = null;\n        this._changesTail = null;\n        this._additionsHead = null;\n        this._additionsTail = null;\n        this._removalsHead = null;\n        this._removalsTail = null;\n    }\n    /**\n     * @return {?}\n     */\n    get isDirty() {\n        return this._additionsHead !== null || this._changesHead !== null ||\n            this._removalsHead !== null;\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._mapHead; record !== null; record = record._next) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachPreviousItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._previousMapHead; record !== null; record = record._nextPrevious) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachChangedItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._changesHead; record !== null; record = record._nextChanged) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachAddedItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._additionsHead; record !== null; record = record._nextAdded) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    forEachRemovedItem(fn) {\n        /** @type {?} */\n        let record;\n        for (record = this._removalsHead; record !== null; record = record._nextRemoved) {\n            fn(record);\n        }\n    }\n    /**\n     * @param {?=} map\n     * @return {?}\n     */\n    diff(map) {\n        if (!map) {\n            map = new Map();\n        }\n        else if (!(map instanceof Map || isJsObject$1(map))) {\n            throw new Error(`Error trying to diff '${stringify(map)}'. Only maps and objects are allowed`);\n        }\n        return this.check(map) ? this : null;\n    }\n    /**\n     * @return {?}\n     */\n    onDestroy() { }\n    /**\n     * Check the current state of the map vs the previous.\n     * The algorithm is optimised for when the keys do no change.\n     * @param {?} map\n     * @return {?}\n     */\n    check(map) {\n        this._reset();\n        /** @type {?} */\n        let insertBefore = this._mapHead;\n        this._appendAfter = null;\n        this._forEach(map, (/**\n         * @param {?} value\n         * @param {?} key\n         * @return {?}\n         */\n        (value, key) => {\n            if (insertBefore && insertBefore.key === key) {\n                this._maybeAddToChanges(insertBefore, value);\n                this._appendAfter = insertBefore;\n                insertBefore = insertBefore._next;\n            }\n            else {\n                /** @type {?} */\n                const record = this._getOrCreateRecordForKey(key, value);\n                insertBefore = this._insertBeforeOrAppend(insertBefore, record);\n            }\n        }));\n        // Items remaining at the end of the list have been deleted\n        if (insertBefore) {\n            if (insertBefore._prev) {\n                insertBefore._prev._next = null;\n            }\n            this._removalsHead = insertBefore;\n            for (let record = insertBefore; record !== null; record = record._nextRemoved) {\n                if (record === this._mapHead) {\n                    this._mapHead = null;\n                }\n                this._records.delete(record.key);\n                record._nextRemoved = record._next;\n                record.previousValue = record.currentValue;\n                record.currentValue = null;\n                record._prev = null;\n                record._next = null;\n            }\n        }\n        // Make sure tails have no next records from previous runs\n        if (this._changesTail)\n            this._changesTail._nextChanged = null;\n        if (this._additionsTail)\n            this._additionsTail._nextAdded = null;\n        return this.isDirty;\n    }\n    /**\n     * Inserts a record before `before` or append at the end of the list when `before` is null.\n     *\n     * Notes:\n     * - This method appends at `this._appendAfter`,\n     * - This method updates `this._appendAfter`,\n     * - The return value is the new value for the insertion pointer.\n     * @private\n     * @param {?} before\n     * @param {?} record\n     * @return {?}\n     */\n    _insertBeforeOrAppend(before, record) {\n        if (before) {\n            /** @type {?} */\n            const prev = before._prev;\n            record._next = before;\n            record._prev = prev;\n            before._prev = record;\n            if (prev) {\n                prev._next = record;\n            }\n            if (before === this._mapHead) {\n                this._mapHead = record;\n            }\n            this._appendAfter = before;\n            return before;\n        }\n        if (this._appendAfter) {\n            this._appendAfter._next = record;\n            record._prev = this._appendAfter;\n        }\n        else {\n            this._mapHead = record;\n        }\n        this._appendAfter = record;\n        return null;\n    }\n    /**\n     * @private\n     * @param {?} key\n     * @param {?} value\n     * @return {?}\n     */\n    _getOrCreateRecordForKey(key, value) {\n        if (this._records.has(key)) {\n            /** @type {?} */\n            const record = (/** @type {?} */ (this._records.get(key)));\n            this._maybeAddToChanges(record, value);\n            /** @type {?} */\n            const prev = record._prev;\n            /** @type {?} */\n            const next = record._next;\n            if (prev) {\n                prev._next = next;\n            }\n            if (next) {\n                next._prev = prev;\n            }\n            record._next = null;\n            record._prev = null;\n            return record;\n        }\n        /** @type {?} */\n        const record = new KeyValueChangeRecord_(key);\n        this._records.set(key, record);\n        record.currentValue = value;\n        this._addToAdditions(record);\n        return record;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _reset() {\n        if (this.isDirty) {\n            /** @type {?} */\n            let record;\n            // let `_previousMapHead` contain the state of the map before the changes\n            this._previousMapHead = this._mapHead;\n            for (record = this._previousMapHead; record !== null; record = record._next) {\n                record._nextPrevious = record._next;\n            }\n            // Update `record.previousValue` with the value of the item before the changes\n            // We need to update all changed items (that's those which have been added and changed)\n            for (record = this._changesHead; record !== null; record = record._nextChanged) {\n                record.previousValue = record.currentValue;\n            }\n            for (record = this._additionsHead; record != null; record = record._nextAdded) {\n                record.previousValue = record.currentValue;\n            }\n            this._changesHead = this._changesTail = null;\n            this._additionsHead = this._additionsTail = null;\n            this._removalsHead = null;\n        }\n    }\n    // Add the record or a given key to the list of changes only when the value has actually changed\n    /**\n     * @private\n     * @param {?} record\n     * @param {?} newValue\n     * @return {?}\n     */\n    _maybeAddToChanges(record, newValue) {\n        if (!looseIdentical(newValue, record.currentValue)) {\n            record.previousValue = record.currentValue;\n            record.currentValue = newValue;\n            this._addToChanges(record);\n        }\n    }\n    /**\n     * @private\n     * @param {?} record\n     * @return {?}\n     */\n    _addToAdditions(record) {\n        if (this._additionsHead === null) {\n            this._additionsHead = this._additionsTail = record;\n        }\n        else {\n            (/** @type {?} */ (this._additionsTail))._nextAdded = record;\n            this._additionsTail = record;\n        }\n    }\n    /**\n     * @private\n     * @param {?} record\n     * @return {?}\n     */\n    _addToChanges(record) {\n        if (this._changesHead === null) {\n            this._changesHead = this._changesTail = record;\n        }\n        else {\n            (/** @type {?} */ (this._changesTail))._nextChanged = record;\n            this._changesTail = record;\n        }\n    }\n    /**\n     * \\@internal\n     * @private\n     * @template K, V\n     * @param {?} obj\n     * @param {?} fn\n     * @return {?}\n     */\n    _forEach(obj, fn) {\n        if (obj instanceof Map) {\n            obj.forEach(fn);\n        }\n        else {\n            Object.keys(obj).forEach((/**\n             * @param {?} k\n             * @return {?}\n             */\n            k => fn(obj[k], k)));\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._records;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._mapHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._appendAfter;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._previousMapHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._changesHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._changesTail;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._additionsHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._additionsTail;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._removalsHead;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultKeyValueDiffer.prototype._removalsTail;\n}\n/**\n * @template K, V\n */\nclass KeyValueChangeRecord_ {\n    /**\n     * @param {?} key\n     */\n    constructor(key) {\n        this.key = key;\n        this.previousValue = null;\n        this.currentValue = null;\n        /**\n         * \\@internal\n         */\n        this._nextPrevious = null;\n        /**\n         * \\@internal\n         */\n        this._next = null;\n        /**\n         * \\@internal\n         */\n        this._prev = null;\n        /**\n         * \\@internal\n         */\n        this._nextAdded = null;\n        /**\n         * \\@internal\n         */\n        this._nextRemoved = null;\n        /**\n         * \\@internal\n         */\n        this._nextChanged = null;\n    }\n}\nif (false) {\n    /** @type {?} */\n    KeyValueChangeRecord_.prototype.previousValue;\n    /** @type {?} */\n    KeyValueChangeRecord_.prototype.currentValue;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    KeyValueChangeRecord_.prototype._nextPrevious;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    KeyValueChangeRecord_.prototype._next;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    KeyValueChangeRecord_.prototype._prev;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    KeyValueChangeRecord_.prototype._nextAdded;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    KeyValueChangeRecord_.prototype._nextRemoved;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    KeyValueChangeRecord_.prototype._nextChanged;\n    /** @type {?} */\n    KeyValueChangeRecord_.prototype.key;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/differs/iterable_differs.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A strategy for tracking changes over time to an iterable. Used by {\\@link NgForOf} to\n * respond to changes in an iterable by effecting equivalent changes in the DOM.\n *\n * \\@publicApi\n * @record\n * @template V\n */\nfunction IterableDiffer() { }\nif (false) {\n    /**\n     * Compute a difference between the previous state and the new `object` state.\n     *\n     * @param {?} object containing the new value.\n     * @return {?} an object describing the difference. The return value is only valid until the next\n     * `diff()` invocation.\n     */\n    IterableDiffer.prototype.diff = function (object) { };\n}\n/**\n * An object describing the changes in the `Iterable` collection since last time\n * `IterableDiffer#diff()` was invoked.\n *\n * \\@publicApi\n * @record\n * @template V\n */\nfunction IterableChanges() { }\nif (false) {\n    /**\n     * Iterate over all changes. `IterableChangeRecord` will contain information about changes\n     * to each item.\n     * @param {?} fn\n     * @return {?}\n     */\n    IterableChanges.prototype.forEachItem = function (fn) { };\n    /**\n     * Iterate over a set of operations which when applied to the original `Iterable` will produce the\n     * new `Iterable`.\n     *\n     * NOTE: These are not necessarily the actual operations which were applied to the original\n     * `Iterable`, rather these are a set of computed operations which may not be the same as the\n     * ones applied.\n     *\n     * @param {?} fn\n     * @return {?}\n     */\n    IterableChanges.prototype.forEachOperation = function (fn) { };\n    /**\n     * Iterate over changes in the order of original `Iterable` showing where the original items\n     * have moved.\n     * @param {?} fn\n     * @return {?}\n     */\n    IterableChanges.prototype.forEachPreviousItem = function (fn) { };\n    /**\n     * Iterate over all added items.\n     * @param {?} fn\n     * @return {?}\n     */\n    IterableChanges.prototype.forEachAddedItem = function (fn) { };\n    /**\n     * Iterate over all moved items.\n     * @param {?} fn\n     * @return {?}\n     */\n    IterableChanges.prototype.forEachMovedItem = function (fn) { };\n    /**\n     * Iterate over all removed items.\n     * @param {?} fn\n     * @return {?}\n     */\n    IterableChanges.prototype.forEachRemovedItem = function (fn) { };\n    /**\n     * Iterate over all items which had their identity (as computed by the `TrackByFunction`)\n     * changed.\n     * @param {?} fn\n     * @return {?}\n     */\n    IterableChanges.prototype.forEachIdentityChange = function (fn) { };\n}\n/**\n * Record representing the item change information.\n *\n * \\@publicApi\n * @record\n * @template V\n */\nfunction IterableChangeRecord() { }\nif (false) {\n    /**\n     * Current index of the item in `Iterable` or null if removed.\n     * @type {?}\n     */\n    IterableChangeRecord.prototype.currentIndex;\n    /**\n     * Previous index of the item in `Iterable` or null if added.\n     * @type {?}\n     */\n    IterableChangeRecord.prototype.previousIndex;\n    /**\n     * The item.\n     * @type {?}\n     */\n    IterableChangeRecord.prototype.item;\n    /**\n     * Track by identity as computed by the `TrackByFunction`.\n     * @type {?}\n     */\n    IterableChangeRecord.prototype.trackById;\n}\n/**\n * @deprecated v4.0.0 - Use IterableChangeRecord instead.\n * \\@publicApi\n * @record\n * @template V\n */\nfunction CollectionChangeRecord() { }\n/**\n * An optional function passed into the `NgForOf` directive that defines how to track\n * changes for items in an iterable.\n * The function takes the iteration index and item ID.\n * When supplied, Angular tracks changes by the return value of the function.\n *\n * \\@publicApi\n * @record\n * @template T\n */\nfunction TrackByFunction() { }\n/**\n * Provides a factory for {\\@link IterableDiffer}.\n *\n * \\@publicApi\n * @record\n */\nfunction IterableDifferFactory() { }\nif (false) {\n    /**\n     * @param {?} objects\n     * @return {?}\n     */\n    IterableDifferFactory.prototype.supports = function (objects) { };\n    /**\n     * @template V\n     * @param {?=} trackByFn\n     * @return {?}\n     */\n    IterableDifferFactory.prototype.create = function (trackByFn) { };\n}\n/**\n * A repository of different iterable diffing strategies used by NgFor, NgClass, and others.\n *\n * \\@publicApi\n */\nclass IterableDiffers {\n    /**\n     * @param {?} factories\n     */\n    constructor(factories) {\n        this.factories = factories;\n    }\n    /**\n     * @param {?} factories\n     * @param {?=} parent\n     * @return {?}\n     */\n    static create(factories, parent) {\n        if (parent != null) {\n            /** @type {?} */\n            const copied = parent.factories.slice();\n            factories = factories.concat(copied);\n        }\n        return new IterableDiffers(factories);\n    }\n    /**\n     * Takes an array of {\\@link IterableDifferFactory} and returns a provider used to extend the\n     * inherited {\\@link IterableDiffers} instance with the provided factories and return a new\n     * {\\@link IterableDiffers} instance.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * The following example shows how to extend an existing list of factories,\n     * which will only be applied to the injector for this component and its children.\n     * This step is all that's required to make a new {\\@link IterableDiffer} available.\n     *\n     * ```\n     * \\@Component({\n     *   viewProviders: [\n     *     IterableDiffers.extend([new ImmutableListDiffer()])\n     *   ]\n     * })\n     * ```\n     * @param {?} factories\n     * @return {?}\n     */\n    static extend(factories) {\n        return {\n            provide: IterableDiffers,\n            useFactory: (/**\n             * @param {?} parent\n             * @return {?}\n             */\n            (parent) => {\n                if (!parent) {\n                    // Typically would occur when calling IterableDiffers.extend inside of dependencies passed\n                    // to\n                    // bootstrap(), which would override default pipes instead of extending them.\n                    throw new Error('Cannot extend IterableDiffers without a parent injector');\n                }\n                return IterableDiffers.create(factories, parent);\n            }),\n            // Dependency technically isn't optional, but we can provide a better error message this way.\n            deps: [[IterableDiffers, new SkipSelf(), new Optional()]]\n        };\n    }\n    /**\n     * @param {?} iterable\n     * @return {?}\n     */\n    find(iterable) {\n        /** @type {?} */\n        const factory = this.factories.find((/**\n         * @param {?} f\n         * @return {?}\n         */\n        f => f.supports(iterable)));\n        if (factory != null) {\n            return factory;\n        }\n        else {\n            throw new Error(`Cannot find a differ supporting object '${iterable}' of type '${getTypeNameForDebugging(iterable)}'`);\n        }\n    }\n}\n/** @nocollapse */\nIterableDiffers.ɵprov = ɵɵdefineInjectable({\n    token: IterableDiffers,\n    providedIn: 'root',\n    factory: (/**\n     * @return {?}\n     */\n    () => new IterableDiffers([new DefaultIterableDifferFactory()]))\n});\nif (false) {\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    IterableDiffers.ɵprov;\n    /**\n     * @deprecated v4.0.0 - Should be private\n     * @type {?}\n     */\n    IterableDiffers.prototype.factories;\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction getTypeNameForDebugging(type) {\n    return type['name'] || typeof type;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/differs/keyvalue_differs.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A differ that tracks changes made to an object over time.\n *\n * \\@publicApi\n * @record\n * @template K, V\n */\nfunction KeyValueDiffer() { }\nif (false) {\n    /**\n     * Compute a difference between the previous state and the new `object` state.\n     *\n     * @param {?} object containing the new value.\n     * @return {?} an object describing the difference. The return value is only valid until the next\n     * `diff()` invocation.\n     */\n    KeyValueDiffer.prototype.diff = function (object) { };\n    /**\n     * Compute a difference between the previous state and the new `object` state.\n     *\n     * @param {?} object containing the new value.\n     * @return {?} an object describing the difference. The return value is only valid until the next\n     * `diff()` invocation.\n     */\n    KeyValueDiffer.prototype.diff = function (object) { };\n}\n/**\n * An object describing the changes in the `Map` or `{[k:string]: string}` since last time\n * `KeyValueDiffer#diff()` was invoked.\n *\n * \\@publicApi\n * @record\n * @template K, V\n */\nfunction KeyValueChanges() { }\nif (false) {\n    /**\n     * Iterate over all changes. `KeyValueChangeRecord` will contain information about changes\n     * to each item.\n     * @param {?} fn\n     * @return {?}\n     */\n    KeyValueChanges.prototype.forEachItem = function (fn) { };\n    /**\n     * Iterate over changes in the order of original Map showing where the original items\n     * have moved.\n     * @param {?} fn\n     * @return {?}\n     */\n    KeyValueChanges.prototype.forEachPreviousItem = function (fn) { };\n    /**\n     * Iterate over all keys for which values have changed.\n     * @param {?} fn\n     * @return {?}\n     */\n    KeyValueChanges.prototype.forEachChangedItem = function (fn) { };\n    /**\n     * Iterate over all added items.\n     * @param {?} fn\n     * @return {?}\n     */\n    KeyValueChanges.prototype.forEachAddedItem = function (fn) { };\n    /**\n     * Iterate over all removed items.\n     * @param {?} fn\n     * @return {?}\n     */\n    KeyValueChanges.prototype.forEachRemovedItem = function (fn) { };\n}\n/**\n * Record representing the item change information.\n *\n * \\@publicApi\n * @record\n * @template K, V\n */\nfunction KeyValueChangeRecord() { }\nif (false) {\n    /**\n     * Current key in the Map.\n     * @type {?}\n     */\n    KeyValueChangeRecord.prototype.key;\n    /**\n     * Current value for the key or `null` if removed.\n     * @type {?}\n     */\n    KeyValueChangeRecord.prototype.currentValue;\n    /**\n     * Previous value for the key or `null` if added.\n     * @type {?}\n     */\n    KeyValueChangeRecord.prototype.previousValue;\n}\n/**\n * Provides a factory for {\\@link KeyValueDiffer}.\n *\n * \\@publicApi\n * @record\n */\nfunction KeyValueDifferFactory() { }\nif (false) {\n    /**\n     * Test to see if the differ knows how to diff this kind of object.\n     * @param {?} objects\n     * @return {?}\n     */\n    KeyValueDifferFactory.prototype.supports = function (objects) { };\n    /**\n     * Create a `KeyValueDiffer`.\n     * @template K, V\n     * @return {?}\n     */\n    KeyValueDifferFactory.prototype.create = function () { };\n}\n/**\n * A repository of different Map diffing strategies used by NgClass, NgStyle, and others.\n *\n * \\@publicApi\n */\nclass KeyValueDiffers {\n    /**\n     * @param {?} factories\n     */\n    constructor(factories) {\n        this.factories = factories;\n    }\n    /**\n     * @template S\n     * @param {?} factories\n     * @param {?=} parent\n     * @return {?}\n     */\n    static create(factories, parent) {\n        if (parent) {\n            /** @type {?} */\n            const copied = parent.factories.slice();\n            factories = factories.concat(copied);\n        }\n        return new KeyValueDiffers(factories);\n    }\n    /**\n     * Takes an array of {\\@link KeyValueDifferFactory} and returns a provider used to extend the\n     * inherited {\\@link KeyValueDiffers} instance with the provided factories and return a new\n     * {\\@link KeyValueDiffers} instance.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * The following example shows how to extend an existing list of factories,\n     * which will only be applied to the injector for this component and its children.\n     * This step is all that's required to make a new {\\@link KeyValueDiffer} available.\n     *\n     * ```\n     * \\@Component({\n     *   viewProviders: [\n     *     KeyValueDiffers.extend([new ImmutableMapDiffer()])\n     *   ]\n     * })\n     * ```\n     * @template S\n     * @param {?} factories\n     * @return {?}\n     */\n    static extend(factories) {\n        return {\n            provide: KeyValueDiffers,\n            useFactory: (/**\n             * @param {?} parent\n             * @return {?}\n             */\n            (parent) => {\n                if (!parent) {\n                    // Typically would occur when calling KeyValueDiffers.extend inside of dependencies passed\n                    // to bootstrap(), which would override default pipes instead of extending them.\n                    throw new Error('Cannot extend KeyValueDiffers without a parent injector');\n                }\n                return KeyValueDiffers.create(factories, parent);\n            }),\n            // Dependency technically isn't optional, but we can provide a better error message this way.\n            deps: [[KeyValueDiffers, new SkipSelf(), new Optional()]]\n        };\n    }\n    /**\n     * @param {?} kv\n     * @return {?}\n     */\n    find(kv) {\n        /** @type {?} */\n        const factory = this.factories.find((/**\n         * @param {?} f\n         * @return {?}\n         */\n        f => f.supports(kv)));\n        if (factory) {\n            return factory;\n        }\n        throw new Error(`Cannot find a differ supporting object '${kv}'`);\n    }\n}\n/** @nocollapse */\nKeyValueDiffers.ɵprov = ɵɵdefineInjectable({\n    token: KeyValueDiffers,\n    providedIn: 'root',\n    factory: (/**\n     * @return {?}\n     */\n    () => new KeyValueDiffers([new DefaultKeyValueDifferFactory()]))\n});\nif (false) {\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    KeyValueDiffers.ɵprov;\n    /**\n     * @deprecated v4.0.0 - Should be private.\n     * @type {?}\n     */\n    KeyValueDiffers.prototype.factories;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection/change_detection.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Structural diffing for `Object`s and `Map`s.\n * @type {?}\n */\nconst keyValDiff = [new DefaultKeyValueDifferFactory()];\n/**\n * Structural diffing for `Iterable` types such as `Array`s.\n * @type {?}\n */\nconst iterableDiff = [new DefaultIterableDifferFactory()];\n/** @type {?} */\nconst defaultIterableDiffers = new IterableDiffers(iterableDiff);\n/** @type {?} */\nconst defaultKeyValueDiffers = new KeyValueDiffers(keyValDiff);\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/template_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Represents an embedded template that can be used to instantiate embedded views.\n * To instantiate embedded views based on a template, use the `ViewContainerRef`\n * method `createEmbeddedView()`.\n *\n * Access a `TemplateRef` instance by placing a directive on an `<ng-template>`\n * element (or directive prefixed with `*`). The `TemplateRef` for the embedded view\n * is injected into the constructor of the directive,\n * using the `TemplateRef` token.\n *\n * You can also use a `Query` to find a `TemplateRef` associated with\n * a component or a directive.\n *\n * @see `ViewContainerRef`\n * @see [Navigate the Component Tree with DI](guide/dependency-injection-navtree)\n *\n * \\@publicApi\n * @abstract\n * @template C\n */\nclass TemplateRef {\n}\n/**\n * \\@internal\n * @nocollapse\n */\nTemplateRef.__NG_ELEMENT_ID__ = (/**\n * @return {?}\n */\n() => SWITCH_TEMPLATE_REF_FACTORY(TemplateRef, ElementRef));\nif (false) {\n    /**\n     * \\@internal\n     * @nocollapse\n     * @type {?}\n     */\n    TemplateRef.__NG_ELEMENT_ID__;\n    /**\n     * The anchor element in the parent view for this embedded view.\n     *\n     * The data-binding and injection contexts of embedded views created from this `TemplateRef`\n     * inherit from the contexts of this location.\n     *\n     * Typically new embedded views are attached to the view container of this location, but in\n     * advanced use-cases, the view can be attached to a different container while keeping the\n     * data-binding and injection context from the original location.\n     *\n     * @abstract\n     * @return {?}\n     */\n    TemplateRef.prototype.elementRef = function () { };\n    /**\n     * Instantiates an embedded view based on this template,\n     * and attaches it to the view container.\n     * @abstract\n     * @param {?} context The data-binding context of the embedded view, as declared\n     * in the `<ng-template>` usage.\n     * @return {?} The new embedded view object.\n     */\n    TemplateRef.prototype.createEmbeddedView = function (context) { };\n}\n/** @type {?} */\nconst SWITCH_TEMPLATE_REF_FACTORY__POST_R3__ = injectTemplateRef;\n/** @type {?} */\nconst SWITCH_TEMPLATE_REF_FACTORY__PRE_R3__ = noop;\n/** @type {?} */\nconst SWITCH_TEMPLATE_REF_FACTORY = SWITCH_TEMPLATE_REF_FACTORY__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/view_container_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Represents a container where one or more views can be attached to a component.\n *\n * Can contain *host views* (created by instantiating a\n * component with the `createComponent()` method), and *embedded views*\n * (created by instantiating a `TemplateRef` with the `createEmbeddedView()` method).\n *\n * A view container instance can contain other view containers,\n * creating a [view hierarchy](guide/glossary#view-tree).\n *\n * @see `ComponentRef`\n * @see `EmbeddedViewRef`\n *\n * \\@publicApi\n * @abstract\n */\nclass ViewContainerRef {\n}\n/**\n * \\@internal\n * @nocollapse\n */\nViewContainerRef.__NG_ELEMENT_ID__ = (/**\n * @return {?}\n */\n() => SWITCH_VIEW_CONTAINER_REF_FACTORY(ViewContainerRef, ElementRef));\nif (false) {\n    /**\n     * \\@internal\n     * @nocollapse\n     * @type {?}\n     */\n    ViewContainerRef.__NG_ELEMENT_ID__;\n    /**\n     * Anchor element that specifies the location of this container in the containing view.\n     * Each view container can have only one anchor element, and each anchor element\n     * can have only a single view container.\n     *\n     * Root elements of views attached to this container become siblings of the anchor element in\n     * the rendered view.\n     *\n     * Access the `ViewContainerRef` of an element by placing a `Directive` injected\n     * with `ViewContainerRef` on the element, or use a `ViewChild` query.\n     *\n     * <!-- TODO: rename to anchorElement -->\n     * @abstract\n     * @return {?}\n     */\n    ViewContainerRef.prototype.element = function () { };\n    /**\n     * The [dependency injector](guide/glossary#injector) for this view container.\n     * @abstract\n     * @return {?}\n     */\n    ViewContainerRef.prototype.injector = function () { };\n    /**\n     * @deprecated No replacement\n     * @abstract\n     * @return {?}\n     */\n    ViewContainerRef.prototype.parentInjector = function () { };\n    /**\n     * Destroys all views in this container.\n     * @abstract\n     * @return {?}\n     */\n    ViewContainerRef.prototype.clear = function () { };\n    /**\n     * Retrieves a view from this container.\n     * @abstract\n     * @param {?} index The 0-based index of the view to retrieve.\n     * @return {?} The `ViewRef` instance, or null if the index is out of range.\n     */\n    ViewContainerRef.prototype.get = function (index) { };\n    /**\n     * Reports how many views are currently attached to this container.\n     * @abstract\n     * @return {?} The number of views.\n     */\n    ViewContainerRef.prototype.length = function () { };\n    /**\n     * Instantiates an embedded view and inserts it\n     * into this container.\n     * @abstract\n     * @template C\n     * @param {?} templateRef The HTML template that defines the view.\n     * @param {?=} context\n     * @param {?=} index The 0-based index at which to insert the new view into this container.\n     * If not specified, appends the new view as the last entry.\n     *\n     * @return {?} The `ViewRef` instance for the newly created view.\n     */\n    ViewContainerRef.prototype.createEmbeddedView = function (templateRef, context, index) { };\n    /**\n     * Instantiates a single component and inserts its host view into this container.\n     *\n     * @abstract\n     * @template C\n     * @param {?} componentFactory The factory to use.\n     * @param {?=} index The index at which to insert the new component's host view into this container.\n     * If not specified, appends the new view as the last entry.\n     * @param {?=} injector The injector to use as the parent for the new component.\n     * @param {?=} projectableNodes\n     * @param {?=} ngModule\n     *\n     * @return {?} The new component instance, containing the host view.\n     *\n     */\n    ViewContainerRef.prototype.createComponent = function (componentFactory, index, injector, projectableNodes, ngModule) { };\n    /**\n     * Inserts a view into this container.\n     * @abstract\n     * @param {?} viewRef The view to insert.\n     * @param {?=} index The 0-based index at which to insert the view.\n     * If not specified, appends the new view as the last entry.\n     * @return {?} The inserted `ViewRef` instance.\n     *\n     */\n    ViewContainerRef.prototype.insert = function (viewRef, index) { };\n    /**\n     * Moves a view to a new location in this container.\n     * @abstract\n     * @param {?} viewRef The view to move.\n     * @param {?} currentIndex\n     * @return {?} The moved `ViewRef` instance.\n     */\n    ViewContainerRef.prototype.move = function (viewRef, currentIndex) { };\n    /**\n     * Returns the index of a view within the current container.\n     * @abstract\n     * @param {?} viewRef The view to query.\n     * @return {?} The 0-based index of the view's position in this container,\n     * or `-1` if this container doesn't contain the view.\n     */\n    ViewContainerRef.prototype.indexOf = function (viewRef) { };\n    /**\n     * Destroys a view attached to this container\n     * @abstract\n     * @param {?=} index The 0-based index of the view to destroy.\n     * If not specified, the last view in the container is removed.\n     * @return {?}\n     */\n    ViewContainerRef.prototype.remove = function (index) { };\n    /**\n     * Detaches a view from this container without destroying it.\n     * Use along with `insert()` to move a view within the current container.\n     * @abstract\n     * @param {?=} index The 0-based index of the view to detach.\n     * If not specified, the last view in the container is detached.\n     * @return {?}\n     */\n    ViewContainerRef.prototype.detach = function (index) { };\n}\n/** @type {?} */\nconst SWITCH_VIEW_CONTAINER_REF_FACTORY__POST_R3__ = injectViewContainerRef;\n/** @type {?} */\nconst SWITCH_VIEW_CONTAINER_REF_FACTORY__PRE_R3__ = noop;\n/** @type {?} */\nconst SWITCH_VIEW_CONTAINER_REF_FACTORY = SWITCH_VIEW_CONTAINER_REF_FACTORY__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} context\n * @param {?} oldValue\n * @param {?} currValue\n * @param {?} isFirstCheck\n * @return {?}\n */\nfunction expressionChangedAfterItHasBeenCheckedError(context, oldValue, currValue, isFirstCheck) {\n    /** @type {?} */\n    let msg = `ExpressionChangedAfterItHasBeenCheckedError: Expression has changed after it was checked. Previous value: '${oldValue}'. Current value: '${currValue}'.`;\n    if (isFirstCheck) {\n        msg +=\n            ` It seems like the view has been created after its parent and its children have been dirty checked.` +\n                ` Has it been created in a change detection hook ?`;\n    }\n    return viewDebugError(msg, context);\n}\n/**\n * @param {?} err\n * @param {?} context\n * @return {?}\n */\nfunction viewWrappedDebugError(err, context) {\n    if (!(err instanceof Error)) {\n        // errors that are not Error instances don't have a stack,\n        // so it is ok to wrap them into a new Error object...\n        err = new Error(err.toString());\n    }\n    _addDebugContext(err, context);\n    return err;\n}\n/**\n * @param {?} msg\n * @param {?} context\n * @return {?}\n */\nfunction viewDebugError(msg, context) {\n    /** @type {?} */\n    const err = new Error(msg);\n    _addDebugContext(err, context);\n    return err;\n}\n/**\n * @param {?} err\n * @param {?} context\n * @return {?}\n */\nfunction _addDebugContext(err, context) {\n    ((/** @type {?} */ (err)))[ERROR_DEBUG_CONTEXT] = context;\n    ((/** @type {?} */ (err)))[ERROR_LOGGER] = context.logError.bind(context);\n}\n/**\n * @param {?} err\n * @return {?}\n */\nfunction isViewDebugError(err) {\n    return !!getDebugContext(err);\n}\n/**\n * @param {?} action\n * @return {?}\n */\nfunction viewDestroyedError(action) {\n    return new Error(`ViewDestroyedError: Attempt to use a destroyed view: ${action}`);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/types.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Factory for ViewDefinitions/NgModuleDefinitions.\n * We use a function so we can reexeute it in case an error happens and use the given logger\n * function to log the error from the definition of the node, which is shown in all browser\n * logs.\n * @record\n * @template D\n */\nfunction DefinitionFactory() { }\n/**\n * Function to call console.error at the right source location. This is an indirection\n * via another function as browser will log the location that actually called\n * `console.error`.\n * @record\n */\nfunction NodeLogger() { }\n/**\n * @record\n * @template DF\n */\nfunction Definition() { }\nif (false) {\n    /** @type {?} */\n    Definition.prototype.factory;\n}\n/**\n * @record\n */\nfunction NgModuleDefinition() { }\nif (false) {\n    /** @type {?} */\n    NgModuleDefinition.prototype.providers;\n    /** @type {?} */\n    NgModuleDefinition.prototype.providersByKey;\n    /** @type {?} */\n    NgModuleDefinition.prototype.modules;\n    /** @type {?} */\n    NgModuleDefinition.prototype.scope;\n}\n/**\n * @record\n */\nfunction NgModuleDefinitionFactory() { }\n/**\n * @record\n */\nfunction ViewDefinition() { }\nif (false) {\n    /** @type {?} */\n    ViewDefinition.prototype.flags;\n    /** @type {?} */\n    ViewDefinition.prototype.updateDirectives;\n    /** @type {?} */\n    ViewDefinition.prototype.updateRenderer;\n    /** @type {?} */\n    ViewDefinition.prototype.handleEvent;\n    /**\n     * Order: Depth first.\n     * Especially providers are before elements / anchors.\n     * @type {?}\n     */\n    ViewDefinition.prototype.nodes;\n    /**\n     * aggregated NodeFlags for all nodes *\n     * @type {?}\n     */\n    ViewDefinition.prototype.nodeFlags;\n    /** @type {?} */\n    ViewDefinition.prototype.rootNodeFlags;\n    /** @type {?} */\n    ViewDefinition.prototype.lastRenderRootNode;\n    /** @type {?} */\n    ViewDefinition.prototype.bindingCount;\n    /** @type {?} */\n    ViewDefinition.prototype.outputCount;\n    /**\n     * Binary or of all query ids that are matched by one of the nodes.\n     * This includes query ids from templates as well.\n     * Used as a bloom filter.\n     * @type {?}\n     */\n    ViewDefinition.prototype.nodeMatchedQueries;\n}\n/**\n * @record\n */\nfunction ViewDefinitionFactory() { }\n/**\n * @record\n */\nfunction ViewUpdateFn() { }\n/**\n * @record\n */\nfunction NodeCheckFn() { }\n/** @enum {number} */\nconst ArgumentType = {\n    Inline: 0,\n    Dynamic: 1,\n};\n/**\n * @record\n */\nfunction ViewHandleEventFn() { }\n/** @enum {number} */\nconst ViewFlags = {\n    None: 0,\n    OnPush: 2,\n};\n/**\n * A node definition in the view.\n *\n * Note: We use one type for all nodes so that loops that loop over all nodes\n * of a ViewDefinition stay monomorphic!\n * @record\n */\nfunction NodeDef() { }\nif (false) {\n    /** @type {?} */\n    NodeDef.prototype.flags;\n    /** @type {?} */\n    NodeDef.prototype.nodeIndex;\n    /** @type {?} */\n    NodeDef.prototype.checkIndex;\n    /** @type {?} */\n    NodeDef.prototype.parent;\n    /** @type {?} */\n    NodeDef.prototype.renderParent;\n    /**\n     * this is checked against NgContentDef.index to find matched nodes\n     * @type {?}\n     */\n    NodeDef.prototype.ngContentIndex;\n    /**\n     * number of transitive children\n     * @type {?}\n     */\n    NodeDef.prototype.childCount;\n    /**\n     * aggregated NodeFlags for all transitive children (does not include self) *\n     * @type {?}\n     */\n    NodeDef.prototype.childFlags;\n    /**\n     * aggregated NodeFlags for all direct children (does not include self) *\n     * @type {?}\n     */\n    NodeDef.prototype.directChildFlags;\n    /** @type {?} */\n    NodeDef.prototype.bindingIndex;\n    /** @type {?} */\n    NodeDef.prototype.bindings;\n    /** @type {?} */\n    NodeDef.prototype.bindingFlags;\n    /** @type {?} */\n    NodeDef.prototype.outputIndex;\n    /** @type {?} */\n    NodeDef.prototype.outputs;\n    /**\n     * references that the user placed on the element\n     * @type {?}\n     */\n    NodeDef.prototype.references;\n    /**\n     * ids and value types of all queries that are matched by this node.\n     * @type {?}\n     */\n    NodeDef.prototype.matchedQueries;\n    /**\n     * Binary or of all matched query ids of this node.\n     * @type {?}\n     */\n    NodeDef.prototype.matchedQueryIds;\n    /**\n     * Binary or of all query ids that are matched by one of the children.\n     * This includes query ids from templates as well.\n     * Used as a bloom filter.\n     * @type {?}\n     */\n    NodeDef.prototype.childMatchedQueries;\n    /** @type {?} */\n    NodeDef.prototype.element;\n    /** @type {?} */\n    NodeDef.prototype.provider;\n    /** @type {?} */\n    NodeDef.prototype.text;\n    /** @type {?} */\n    NodeDef.prototype.query;\n    /** @type {?} */\n    NodeDef.prototype.ngContent;\n}\n/** @enum {number} */\nconst NodeFlags = {\n    None: 0,\n    TypeElement: 1,\n    TypeText: 2,\n    ProjectedTemplate: 4,\n    CatRenderNode: 3,\n    TypeNgContent: 8,\n    TypePipe: 16,\n    TypePureArray: 32,\n    TypePureObject: 64,\n    TypePurePipe: 128,\n    CatPureExpression: 224,\n    TypeValueProvider: 256,\n    TypeClassProvider: 512,\n    TypeFactoryProvider: 1024,\n    TypeUseExistingProvider: 2048,\n    LazyProvider: 4096,\n    PrivateProvider: 8192,\n    TypeDirective: 16384,\n    Component: 32768,\n    CatProviderNoDirective: 3840,\n    CatProvider: 20224,\n    OnInit: 65536,\n    OnDestroy: 131072,\n    DoCheck: 262144,\n    OnChanges: 524288,\n    AfterContentInit: 1048576,\n    AfterContentChecked: 2097152,\n    AfterViewInit: 4194304,\n    AfterViewChecked: 8388608,\n    EmbeddedViews: 16777216,\n    ComponentView: 33554432,\n    TypeContentQuery: 67108864,\n    TypeViewQuery: 134217728,\n    StaticQuery: 268435456,\n    DynamicQuery: 536870912,\n    TypeNgModule: 1073741824,\n    CatQuery: 201326592,\n    // mutually exclusive values...\n    Types: 201347067,\n};\n/**\n * @record\n */\nfunction BindingDef() { }\nif (false) {\n    /** @type {?} */\n    BindingDef.prototype.flags;\n    /** @type {?} */\n    BindingDef.prototype.ns;\n    /** @type {?} */\n    BindingDef.prototype.name;\n    /** @type {?} */\n    BindingDef.prototype.nonMinifiedName;\n    /** @type {?} */\n    BindingDef.prototype.securityContext;\n    /** @type {?} */\n    BindingDef.prototype.suffix;\n}\n/** @enum {number} */\nconst BindingFlags = {\n    TypeElementAttribute: 1,\n    TypeElementClass: 2,\n    TypeElementStyle: 4,\n    TypeProperty: 8,\n    SyntheticProperty: 16,\n    SyntheticHostProperty: 32,\n    CatSyntheticProperty: 48,\n    // mutually exclusive values...\n    Types: 15,\n};\n/**\n * @record\n */\nfunction OutputDef() { }\nif (false) {\n    /** @type {?} */\n    OutputDef.prototype.type;\n    /** @type {?} */\n    OutputDef.prototype.target;\n    /** @type {?} */\n    OutputDef.prototype.eventName;\n    /** @type {?} */\n    OutputDef.prototype.propName;\n}\n/** @enum {number} */\nconst OutputType = {\n    ElementOutput: 0,\n    DirectiveOutput: 1,\n};\n/** @enum {number} */\nconst QueryValueType = {\n    ElementRef: 0,\n    RenderElement: 1,\n    TemplateRef: 2,\n    ViewContainerRef: 3,\n    Provider: 4,\n};\n/**\n * @record\n */\nfunction ElementDef() { }\nif (false) {\n    /** @type {?} */\n    ElementDef.prototype.name;\n    /** @type {?} */\n    ElementDef.prototype.ns;\n    /**\n     * ns, name, value\n     * @type {?}\n     */\n    ElementDef.prototype.attrs;\n    /** @type {?} */\n    ElementDef.prototype.template;\n    /** @type {?} */\n    ElementDef.prototype.componentProvider;\n    /** @type {?} */\n    ElementDef.prototype.componentRendererType;\n    /** @type {?} */\n    ElementDef.prototype.componentView;\n    /**\n     * visible public providers for DI in the view,\n     * as see from this element. This does not include private providers.\n     * @type {?}\n     */\n    ElementDef.prototype.publicProviders;\n    /**\n     * same as visiblePublicProviders, but also includes private providers\n     * that are located on this element.\n     * @type {?}\n     */\n    ElementDef.prototype.allProviders;\n    /** @type {?} */\n    ElementDef.prototype.handleEvent;\n}\n/**\n * @record\n */\nfunction ElementHandleEventFn() { }\n/**\n * @record\n */\nfunction ProviderDef() { }\nif (false) {\n    /** @type {?} */\n    ProviderDef.prototype.token;\n    /** @type {?} */\n    ProviderDef.prototype.value;\n    /** @type {?} */\n    ProviderDef.prototype.deps;\n}\n/**\n * @record\n */\nfunction NgModuleProviderDef() { }\nif (false) {\n    /** @type {?} */\n    NgModuleProviderDef.prototype.flags;\n    /** @type {?} */\n    NgModuleProviderDef.prototype.index;\n    /** @type {?} */\n    NgModuleProviderDef.prototype.token;\n    /** @type {?} */\n    NgModuleProviderDef.prototype.value;\n    /** @type {?} */\n    NgModuleProviderDef.prototype.deps;\n}\n/**\n * @record\n */\nfunction DepDef() { }\nif (false) {\n    /** @type {?} */\n    DepDef.prototype.flags;\n    /** @type {?} */\n    DepDef.prototype.token;\n    /** @type {?} */\n    DepDef.prototype.tokenKey;\n}\n/** @enum {number} */\nconst DepFlags = {\n    None: 0,\n    SkipSelf: 1,\n    Optional: 2,\n    Self: 4,\n    Value: 8,\n};\n/**\n * @record\n */\nfunction TextDef() { }\nif (false) {\n    /** @type {?} */\n    TextDef.prototype.prefix;\n}\n/**\n * @record\n */\nfunction QueryDef() { }\nif (false) {\n    /** @type {?} */\n    QueryDef.prototype.id;\n    /** @type {?} */\n    QueryDef.prototype.filterId;\n    /** @type {?} */\n    QueryDef.prototype.bindings;\n}\n/**\n * @record\n */\nfunction QueryBindingDef() { }\nif (false) {\n    /** @type {?} */\n    QueryBindingDef.prototype.propName;\n    /** @type {?} */\n    QueryBindingDef.prototype.bindingType;\n}\n/** @enum {number} */\nconst QueryBindingType = {\n    First: 0,\n    All: 1,\n};\n/**\n * @record\n */\nfunction NgContentDef() { }\nif (false) {\n    /**\n     * this index is checked against NodeDef.ngContentIndex to find the nodes\n     * that are matched by this ng-content.\n     * Note that a NodeDef with an ng-content can be reprojected, i.e.\n     * have a ngContentIndex on its own.\n     * @type {?}\n     */\n    NgContentDef.prototype.index;\n}\n/**\n * @record\n */\nfunction NgModuleData() { }\nif (false) {\n    /** @type {?} */\n    NgModuleData.prototype._def;\n    /** @type {?} */\n    NgModuleData.prototype._parent;\n    /** @type {?} */\n    NgModuleData.prototype._providers;\n}\n/**\n * View instance data.\n * Attention: Adding fields to this is performance sensitive!\n * @record\n */\nfunction ViewData() { }\nif (false) {\n    /** @type {?} */\n    ViewData.prototype.def;\n    /** @type {?} */\n    ViewData.prototype.root;\n    /** @type {?} */\n    ViewData.prototype.renderer;\n    /** @type {?} */\n    ViewData.prototype.parentNodeDef;\n    /** @type {?} */\n    ViewData.prototype.parent;\n    /** @type {?} */\n    ViewData.prototype.viewContainerParent;\n    /** @type {?} */\n    ViewData.prototype.component;\n    /** @type {?} */\n    ViewData.prototype.context;\n    /** @type {?} */\n    ViewData.prototype.nodes;\n    /** @type {?} */\n    ViewData.prototype.state;\n    /** @type {?} */\n    ViewData.prototype.oldValues;\n    /** @type {?} */\n    ViewData.prototype.disposables;\n    /** @type {?} */\n    ViewData.prototype.initIndex;\n}\n/** @enum {number} */\nconst ViewState = {\n    BeforeFirstCheck: 1,\n    FirstCheck: 2,\n    Attached: 4,\n    ChecksEnabled: 8,\n    IsProjectedView: 16,\n    CheckProjectedView: 32,\n    CheckProjectedViews: 64,\n    Destroyed: 128,\n    // InitState Uses 3 bits\n    InitState_Mask: 1792,\n    InitState_BeforeInit: 0,\n    InitState_CallingOnInit: 256,\n    InitState_CallingAfterContentInit: 512,\n    InitState_CallingAfterViewInit: 768,\n    InitState_AfterInit: 1024,\n    CatDetectChanges: 12,\n    CatInit: 13,\n};\n// Called before each cycle of a view's check to detect whether this is in the\n// initState for which we need to call ngOnInit, ngAfterContentInit or ngAfterViewInit\n// lifecycle methods. Returns true if this check cycle should call lifecycle\n// methods.\n/**\n * @param {?} view\n * @param {?} priorInitState\n * @param {?} newInitState\n * @return {?}\n */\nfunction shiftInitState(view, priorInitState, newInitState) {\n    // Only update the InitState if we are currently in the prior state.\n    // For example, only move into CallingInit if we are in BeforeInit. Only\n    // move into CallingContentInit if we are in CallingInit. Normally this will\n    // always be true because of how checkCycle is called in checkAndUpdateView.\n    // However, if checkAndUpdateView is called recursively or if an exception is\n    // thrown while checkAndUpdateView is running, checkAndUpdateView starts over\n    // from the beginning. This ensures the state is monotonically increasing,\n    // terminating in the AfterInit state, which ensures the Init methods are called\n    // at least once and only once.\n    /** @type {?} */\n    const state = view.state;\n    /** @type {?} */\n    const initState = state & 1792 /* InitState_Mask */;\n    if (initState === priorInitState) {\n        view.state = (state & ~1792 /* InitState_Mask */) | newInitState;\n        view.initIndex = -1;\n        return true;\n    }\n    return initState === newInitState;\n}\n// Returns true if the lifecycle init method should be called for the node with\n// the given init index.\n/**\n * @param {?} view\n * @param {?} initState\n * @param {?} index\n * @return {?}\n */\nfunction shouldCallLifecycleInitHook(view, initState, index) {\n    if ((view.state & 1792 /* InitState_Mask */) === initState && view.initIndex <= index) {\n        view.initIndex = index + 1;\n        return true;\n    }\n    return false;\n}\n/**\n * @record\n */\nfunction DisposableFn() { }\n/**\n * Node instance data.\n *\n * We have a separate type per NodeType to save memory\n * (TextData | ElementData | ProviderData | PureExpressionData | QueryList<any>)\n *\n * To keep our code monomorphic,\n * we prohibit using `NodeData` directly but enforce the use of accessors (`asElementData`, ...).\n * This way, no usage site can get a `NodeData` from view.nodes and then use it for different\n * purposes.\n */\nclass NodeData {\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NodeData.prototype.__brand;\n}\n/**\n * Data for an instantiated NodeType.Text.\n *\n * Attention: Adding fields to this is performance sensitive!\n * @record\n */\nfunction TextData() { }\nif (false) {\n    /** @type {?} */\n    TextData.prototype.renderText;\n}\n/**\n * Accessor for view.nodes, enforcing that every usage site stays monomorphic.\n * @param {?} view\n * @param {?} index\n * @return {?}\n */\nfunction asTextData(view, index) {\n    return (/** @type {?} */ (view.nodes[index]));\n}\n/**\n * Data for an instantiated NodeType.Element.\n *\n * Attention: Adding fields to this is performance sensitive!\n * @record\n */\nfunction ElementData() { }\nif (false) {\n    /** @type {?} */\n    ElementData.prototype.renderElement;\n    /** @type {?} */\n    ElementData.prototype.componentView;\n    /** @type {?} */\n    ElementData.prototype.viewContainer;\n    /** @type {?} */\n    ElementData.prototype.template;\n}\n/**\n * @record\n */\nfunction ViewContainerData() { }\nif (false) {\n    /** @type {?} */\n    ViewContainerData.prototype._embeddedViews;\n}\n/**\n * @record\n */\nfunction TemplateData() { }\nif (false) {\n    /** @type {?} */\n    TemplateData.prototype._projectedViews;\n}\n/**\n * Accessor for view.nodes, enforcing that every usage site stays monomorphic.\n * @param {?} view\n * @param {?} index\n * @return {?}\n */\nfunction asElementData(view, index) {\n    return (/** @type {?} */ (view.nodes[index]));\n}\n/**\n * Data for an instantiated NodeType.Provider.\n *\n * Attention: Adding fields to this is performance sensitive!\n * @record\n */\nfunction ProviderData() { }\nif (false) {\n    /** @type {?} */\n    ProviderData.prototype.instance;\n}\n/**\n * Accessor for view.nodes, enforcing that every usage site stays monomorphic.\n * @param {?} view\n * @param {?} index\n * @return {?}\n */\nfunction asProviderData(view, index) {\n    return (/** @type {?} */ (view.nodes[index]));\n}\n/**\n * Data for an instantiated NodeType.PureExpression.\n *\n * Attention: Adding fields to this is performance sensitive!\n * @record\n */\nfunction PureExpressionData() { }\nif (false) {\n    /** @type {?} */\n    PureExpressionData.prototype.value;\n}\n/**\n * Accessor for view.nodes, enforcing that every usage site stays monomorphic.\n * @param {?} view\n * @param {?} index\n * @return {?}\n */\nfunction asPureExpressionData(view, index) {\n    return (/** @type {?} */ (view.nodes[index]));\n}\n/**\n * Accessor for view.nodes, enforcing that every usage site stays monomorphic.\n * @param {?} view\n * @param {?} index\n * @return {?}\n */\nfunction asQueryList(view, index) {\n    return (/** @type {?} */ (view.nodes[index]));\n}\n/**\n * @record\n */\nfunction RootData() { }\nif (false) {\n    /** @type {?} */\n    RootData.prototype.injector;\n    /** @type {?} */\n    RootData.prototype.ngModule;\n    /** @type {?} */\n    RootData.prototype.projectableNodes;\n    /** @type {?} */\n    RootData.prototype.selectorOrNode;\n    /** @type {?} */\n    RootData.prototype.renderer;\n    /** @type {?} */\n    RootData.prototype.rendererFactory;\n    /** @type {?} */\n    RootData.prototype.errorHandler;\n    /** @type {?} */\n    RootData.prototype.sanitizer;\n}\n/**\n * @abstract\n */\nclass DebugContext {\n}\nif (false) {\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.view = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.nodeIndex = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.injector = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.component = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.providerTokens = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.references = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.context = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.componentRenderElement = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DebugContext.prototype.renderNode = function () { };\n    /**\n     * @abstract\n     * @param {?} console\n     * @param {...?} values\n     * @return {?}\n     */\n    DebugContext.prototype.logError = function (console, values) { };\n}\n/** @enum {number} */\nconst CheckType = {\n    CheckAndUpdate: 0,\n    CheckNoChanges: 1,\n};\n/**\n * @record\n */\nfunction ProviderOverride() { }\nif (false) {\n    /** @type {?} */\n    ProviderOverride.prototype.token;\n    /** @type {?} */\n    ProviderOverride.prototype.flags;\n    /** @type {?} */\n    ProviderOverride.prototype.value;\n    /** @type {?} */\n    ProviderOverride.prototype.deps;\n    /** @type {?} */\n    ProviderOverride.prototype.deprecatedBehavior;\n}\n// WARNING: interface has both a type and a value, skipping emit\n/**\n * This object is used to prevent cycles in the source files and to have a place where\n * debug mode can hook it. It is lazily filled when `isDevMode` is known.\n * @type {?}\n */\nconst Services = {\n    setCurrentNode: (/** @type {?} */ (undefined)),\n    createRootView: (/** @type {?} */ (undefined)),\n    createEmbeddedView: (/** @type {?} */ (undefined)),\n    createComponentView: (/** @type {?} */ (undefined)),\n    createNgModuleRef: (/** @type {?} */ (undefined)),\n    overrideProvider: (/** @type {?} */ (undefined)),\n    overrideComponentView: (/** @type {?} */ (undefined)),\n    clearOverrides: (/** @type {?} */ (undefined)),\n    checkAndUpdateView: (/** @type {?} */ (undefined)),\n    checkNoChangesView: (/** @type {?} */ (undefined)),\n    destroyView: (/** @type {?} */ (undefined)),\n    resolveDep: (/** @type {?} */ (undefined)),\n    createDebugContext: (/** @type {?} */ (undefined)),\n    handleEvent: (/** @type {?} */ (undefined)),\n    updateDirectives: (/** @type {?} */ (undefined)),\n    updateRenderer: (/** @type {?} */ (undefined)),\n    dirtyParentQueries: (/** @type {?} */ (undefined)),\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst NOOP = (/**\n * @return {?}\n */\n() => { });\n/** @type {?} */\nconst _tokenKeyCache = new Map();\n/**\n * @param {?} token\n * @return {?}\n */\nfunction tokenKey(token) {\n    /** @type {?} */\n    let key = _tokenKeyCache.get(token);\n    if (!key) {\n        key = stringify(token) + '_' + _tokenKeyCache.size;\n        _tokenKeyCache.set(token, key);\n    }\n    return key;\n}\n/**\n * @param {?} view\n * @param {?} nodeIdx\n * @param {?} bindingIdx\n * @param {?} value\n * @return {?}\n */\nfunction unwrapValue(view, nodeIdx, bindingIdx, value) {\n    if (WrappedValue.isWrapped(value)) {\n        value = WrappedValue.unwrap(value);\n        /** @type {?} */\n        const globalBindingIdx = view.def.nodes[nodeIdx].bindingIndex + bindingIdx;\n        /** @type {?} */\n        const oldValue = WrappedValue.unwrap(view.oldValues[globalBindingIdx]);\n        view.oldValues[globalBindingIdx] = new WrappedValue(oldValue);\n    }\n    return value;\n}\n/** @type {?} */\nconst UNDEFINED_RENDERER_TYPE_ID = '$$undefined';\n/** @type {?} */\nconst EMPTY_RENDERER_TYPE_ID = '$$empty';\n// Attention: this function is called as top level function.\n// Putting any logic in here will destroy closure tree shaking!\n/**\n * @param {?} values\n * @return {?}\n */\nfunction createRendererType2(values) {\n    return {\n        id: UNDEFINED_RENDERER_TYPE_ID,\n        styles: values.styles,\n        encapsulation: values.encapsulation,\n        data: values.data\n    };\n}\n/** @type {?} */\nlet _renderCompCount$1 = 0;\n/**\n * @param {?=} type\n * @return {?}\n */\nfunction resolveRendererType2(type) {\n    if (type && type.id === UNDEFINED_RENDERER_TYPE_ID) {\n        // first time we see this RendererType2. Initialize it...\n        /** @type {?} */\n        const isFilled = ((type.encapsulation != null && type.encapsulation !== ViewEncapsulation$1.None) ||\n            type.styles.length || Object.keys(type.data).length);\n        if (isFilled) {\n            type.id = `c${_renderCompCount$1++}`;\n        }\n        else {\n            type.id = EMPTY_RENDERER_TYPE_ID;\n        }\n    }\n    if (type && type.id === EMPTY_RENDERER_TYPE_ID) {\n        type = null;\n    }\n    return type || null;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} bindingIdx\n * @param {?} value\n * @return {?}\n */\nfunction checkBinding(view, def, bindingIdx, value) {\n    /** @type {?} */\n    const oldValues = view.oldValues;\n    if ((view.state & 2 /* FirstCheck */) ||\n        !looseIdentical(oldValues[def.bindingIndex + bindingIdx], value)) {\n        return true;\n    }\n    return false;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} bindingIdx\n * @param {?} value\n * @return {?}\n */\nfunction checkAndUpdateBinding(view, def, bindingIdx, value) {\n    if (checkBinding(view, def, bindingIdx, value)) {\n        view.oldValues[def.bindingIndex + bindingIdx] = value;\n        return true;\n    }\n    return false;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} bindingIdx\n * @param {?} value\n * @return {?}\n */\nfunction checkBindingNoChanges(view, def, bindingIdx, value) {\n    /** @type {?} */\n    const oldValue = view.oldValues[def.bindingIndex + bindingIdx];\n    if ((view.state & 1 /* BeforeFirstCheck */) || !devModeEqual$1(oldValue, value)) {\n        /** @type {?} */\n        const bindingName = def.bindings[bindingIdx].name;\n        throw expressionChangedAfterItHasBeenCheckedError(Services.createDebugContext(view, def.nodeIndex), `${bindingName}: ${oldValue}`, `${bindingName}: ${value}`, (view.state & 1 /* BeforeFirstCheck */) !== 0);\n    }\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction markParentViewsForCheck(view) {\n    /** @type {?} */\n    let currView = view;\n    while (currView) {\n        if (currView.def.flags & 2 /* OnPush */) {\n            currView.state |= 8 /* ChecksEnabled */;\n        }\n        currView = currView.viewContainerParent || currView.parent;\n    }\n}\n/**\n * @param {?} view\n * @param {?} endView\n * @return {?}\n */\nfunction markParentViewsForCheckProjectedViews(view, endView) {\n    /** @type {?} */\n    let currView = view;\n    while (currView && currView !== endView) {\n        currView.state |= 64 /* CheckProjectedViews */;\n        currView = currView.viewContainerParent || currView.parent;\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeIndex\n * @param {?} eventName\n * @param {?} event\n * @return {?}\n */\nfunction dispatchEvent(view, nodeIndex, eventName, event) {\n    try {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[nodeIndex];\n        /** @type {?} */\n        const startView = nodeDef.flags & 33554432 /* ComponentView */ ?\n            asElementData(view, nodeIndex).componentView :\n            view;\n        markParentViewsForCheck(startView);\n        return Services.handleEvent(view, nodeIndex, eventName, event);\n    }\n    catch (e) {\n        // Attention: Don't rethrow, as it would cancel Observable subscriptions!\n        view.root.errorHandler.handleError(e);\n    }\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction declaredViewContainer(view) {\n    if (view.parent) {\n        /** @type {?} */\n        const parentView = view.parent;\n        return asElementData(parentView, (/** @type {?} */ (view.parentNodeDef)).nodeIndex);\n    }\n    return null;\n}\n/**\n * for component views, this is the host element.\n * for embedded views, this is the index of the parent node\n * that contains the view container.\n * @param {?} view\n * @return {?}\n */\nfunction viewParentEl(view) {\n    /** @type {?} */\n    const parentView = view.parent;\n    if (parentView) {\n        return (/** @type {?} */ (view.parentNodeDef)).parent;\n    }\n    else {\n        return null;\n    }\n}\n/**\n * @param {?} view\n * @param {?} def\n * @return {?}\n */\nfunction renderNode(view, def) {\n    switch (def.flags & 201347067 /* Types */) {\n        case 1 /* TypeElement */:\n            return asElementData(view, def.nodeIndex).renderElement;\n        case 2 /* TypeText */:\n            return asTextData(view, def.nodeIndex).renderText;\n    }\n}\n/**\n * @param {?} target\n * @param {?} name\n * @return {?}\n */\nfunction elementEventFullName(target, name) {\n    return target ? `${target}:${name}` : name;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction isComponentView(view) {\n    return !!view.parent && !!((/** @type {?} */ (view.parentNodeDef)).flags & 32768 /* Component */);\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction isEmbeddedView(view) {\n    return !!view.parent && !((/** @type {?} */ (view.parentNodeDef)).flags & 32768 /* Component */);\n}\n/**\n * @param {?} queryId\n * @return {?}\n */\nfunction filterQueryId(queryId) {\n    return 1 << (queryId % 32);\n}\n/**\n * @param {?} matchedQueriesDsl\n * @return {?}\n */\nfunction splitMatchedQueriesDsl(matchedQueriesDsl) {\n    /** @type {?} */\n    const matchedQueries = {};\n    /** @type {?} */\n    let matchedQueryIds = 0;\n    /** @type {?} */\n    const references = {};\n    if (matchedQueriesDsl) {\n        matchedQueriesDsl.forEach((/**\n         * @param {?} __0\n         * @return {?}\n         */\n        ([queryId, valueType]) => {\n            if (typeof queryId === 'number') {\n                matchedQueries[queryId] = valueType;\n                matchedQueryIds |= filterQueryId(queryId);\n            }\n            else {\n                references[queryId] = valueType;\n            }\n        }));\n    }\n    return { matchedQueries, references, matchedQueryIds };\n}\n/**\n * @param {?} deps\n * @param {?=} sourceName\n * @return {?}\n */\nfunction splitDepsDsl(deps, sourceName) {\n    return deps.map((/**\n     * @param {?} value\n     * @return {?}\n     */\n    value => {\n        /** @type {?} */\n        let token;\n        /** @type {?} */\n        let flags;\n        if (Array.isArray(value)) {\n            [flags, token] = value;\n        }\n        else {\n            flags = 0 /* None */;\n            token = value;\n        }\n        if (token && (typeof token === 'function' || typeof token === 'object') && sourceName) {\n            Object.defineProperty(token, SOURCE, { value: sourceName, configurable: true });\n        }\n        return { flags, token, tokenKey: tokenKey(token) };\n    }));\n}\n/**\n * @param {?} view\n * @param {?} renderHost\n * @param {?} def\n * @return {?}\n */\nfunction getParentRenderElement(view, renderHost, def) {\n    /** @type {?} */\n    let renderParent = def.renderParent;\n    if (renderParent) {\n        if ((renderParent.flags & 1 /* TypeElement */) === 0 ||\n            (renderParent.flags & 33554432 /* ComponentView */) === 0 ||\n            ((/** @type {?} */ (renderParent.element)).componentRendererType &&\n                (/** @type {?} */ ((/** @type {?} */ (renderParent.element)).componentRendererType)).encapsulation === ViewEncapsulation$1.Native)) {\n            // only children of non components, or children of components with native encapsulation should\n            // be attached.\n            return asElementData(view, (/** @type {?} */ (def.renderParent)).nodeIndex).renderElement;\n        }\n    }\n    else {\n        return renderHost;\n    }\n}\n/** @type {?} */\nconst DEFINITION_CACHE = new WeakMap();\n/**\n * @template D\n * @param {?} factory\n * @return {?}\n */\nfunction resolveDefinition(factory) {\n    /** @type {?} */\n    let value = (/** @type {?} */ ((/** @type {?} */ (DEFINITION_CACHE.get(factory)))));\n    if (!value) {\n        value = factory((/**\n         * @return {?}\n         */\n        () => NOOP));\n        value.factory = factory;\n        DEFINITION_CACHE.set(factory, value);\n    }\n    return value;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction rootRenderNodes(view) {\n    /** @type {?} */\n    const renderNodes = [];\n    visitRootRenderNodes(view, 0 /* Collect */, undefined, undefined, renderNodes);\n    return renderNodes;\n}\n/** @enum {number} */\nconst RenderNodeAction = {\n    Collect: 0,\n    AppendChild: 1,\n    InsertBefore: 2,\n    RemoveChild: 3,\n};\n/**\n * @param {?} view\n * @param {?} action\n * @param {?} parentNode\n * @param {?} nextSibling\n * @param {?=} target\n * @return {?}\n */\nfunction visitRootRenderNodes(view, action, parentNode, nextSibling, target) {\n    // We need to re-compute the parent node in case the nodes have been moved around manually\n    if (action === 3 /* RemoveChild */) {\n        parentNode = view.renderer.parentNode(renderNode(view, (/** @type {?} */ (view.def.lastRenderRootNode))));\n    }\n    visitSiblingRenderNodes(view, action, 0, view.def.nodes.length - 1, parentNode, nextSibling, target);\n}\n/**\n * @param {?} view\n * @param {?} action\n * @param {?} startIndex\n * @param {?} endIndex\n * @param {?} parentNode\n * @param {?} nextSibling\n * @param {?=} target\n * @return {?}\n */\nfunction visitSiblingRenderNodes(view, action, startIndex, endIndex, parentNode, nextSibling, target) {\n    for (let i = startIndex; i <= endIndex; i++) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[i];\n        if (nodeDef.flags & (1 /* TypeElement */ | 2 /* TypeText */ | 8 /* TypeNgContent */)) {\n            visitRenderNode(view, nodeDef, action, parentNode, nextSibling, target);\n        }\n        // jump to next sibling\n        i += nodeDef.childCount;\n    }\n}\n/**\n * @param {?} view\n * @param {?} ngContentIndex\n * @param {?} action\n * @param {?} parentNode\n * @param {?} nextSibling\n * @param {?=} target\n * @return {?}\n */\nfunction visitProjectedRenderNodes(view, ngContentIndex, action, parentNode, nextSibling, target) {\n    /** @type {?} */\n    let compView = view;\n    while (compView && !isComponentView(compView)) {\n        compView = compView.parent;\n    }\n    /** @type {?} */\n    const hostView = (/** @type {?} */ (compView)).parent;\n    /** @type {?} */\n    const hostElDef = viewParentEl((/** @type {?} */ (compView)));\n    /** @type {?} */\n    const startIndex = (/** @type {?} */ (hostElDef)).nodeIndex + 1;\n    /** @type {?} */\n    const endIndex = (/** @type {?} */ (hostElDef)).nodeIndex + (/** @type {?} */ (hostElDef)).childCount;\n    for (let i = startIndex; i <= endIndex; i++) {\n        /** @type {?} */\n        const nodeDef = (/** @type {?} */ (hostView)).def.nodes[i];\n        if (nodeDef.ngContentIndex === ngContentIndex) {\n            visitRenderNode((/** @type {?} */ (hostView)), nodeDef, action, parentNode, nextSibling, target);\n        }\n        // jump to next sibling\n        i += nodeDef.childCount;\n    }\n    if (!(/** @type {?} */ (hostView)).parent) {\n        // a root view\n        /** @type {?} */\n        const projectedNodes = view.root.projectableNodes[ngContentIndex];\n        if (projectedNodes) {\n            for (let i = 0; i < projectedNodes.length; i++) {\n                execRenderNodeAction(view, projectedNodes[i], action, parentNode, nextSibling, target);\n            }\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} action\n * @param {?} parentNode\n * @param {?} nextSibling\n * @param {?=} target\n * @return {?}\n */\nfunction visitRenderNode(view, nodeDef, action, parentNode, nextSibling, target) {\n    if (nodeDef.flags & 8 /* TypeNgContent */) {\n        visitProjectedRenderNodes(view, (/** @type {?} */ (nodeDef.ngContent)).index, action, parentNode, nextSibling, target);\n    }\n    else {\n        /** @type {?} */\n        const rn = renderNode(view, nodeDef);\n        if (action === 3 /* RemoveChild */ && (nodeDef.flags & 33554432 /* ComponentView */) &&\n            (nodeDef.bindingFlags & 48 /* CatSyntheticProperty */)) {\n            // Note: we might need to do both actions.\n            if (nodeDef.bindingFlags & (16 /* SyntheticProperty */)) {\n                execRenderNodeAction(view, rn, action, parentNode, nextSibling, target);\n            }\n            if (nodeDef.bindingFlags & (32 /* SyntheticHostProperty */)) {\n                /** @type {?} */\n                const compView = asElementData(view, nodeDef.nodeIndex).componentView;\n                execRenderNodeAction(compView, rn, action, parentNode, nextSibling, target);\n            }\n        }\n        else {\n            execRenderNodeAction(view, rn, action, parentNode, nextSibling, target);\n        }\n        if (nodeDef.flags & 16777216 /* EmbeddedViews */) {\n            /** @type {?} */\n            const embeddedViews = (/** @type {?} */ (asElementData(view, nodeDef.nodeIndex).viewContainer))._embeddedViews;\n            for (let k = 0; k < embeddedViews.length; k++) {\n                visitRootRenderNodes(embeddedViews[k], action, parentNode, nextSibling, target);\n            }\n        }\n        if (nodeDef.flags & 1 /* TypeElement */ && !(/** @type {?} */ (nodeDef.element)).name) {\n            visitSiblingRenderNodes(view, action, nodeDef.nodeIndex + 1, nodeDef.nodeIndex + nodeDef.childCount, parentNode, nextSibling, target);\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} renderNode\n * @param {?} action\n * @param {?} parentNode\n * @param {?} nextSibling\n * @param {?=} target\n * @return {?}\n */\nfunction execRenderNodeAction(view, renderNode, action, parentNode, nextSibling, target) {\n    /** @type {?} */\n    const renderer = view.renderer;\n    switch (action) {\n        case 1 /* AppendChild */:\n            renderer.appendChild(parentNode, renderNode);\n            break;\n        case 2 /* InsertBefore */:\n            renderer.insertBefore(parentNode, renderNode, nextSibling);\n            break;\n        case 3 /* RemoveChild */:\n            renderer.removeChild(parentNode, renderNode);\n            break;\n        case 0 /* Collect */:\n            (/** @type {?} */ (target)).push(renderNode);\n            break;\n    }\n}\n/** @type {?} */\nconst NS_PREFIX_RE = /^:([^:]+):(.+)$/;\n/**\n * @param {?} name\n * @return {?}\n */\nfunction splitNamespace(name) {\n    if (name[0] === ':') {\n        /** @type {?} */\n        const match = (/** @type {?} */ (name.match(NS_PREFIX_RE)));\n        return [match[1], match[2]];\n    }\n    return ['', name];\n}\n/**\n * @param {?} bindings\n * @return {?}\n */\nfunction calcBindingFlags(bindings) {\n    /** @type {?} */\n    let flags = 0;\n    for (let i = 0; i < bindings.length; i++) {\n        flags |= bindings[i].flags;\n    }\n    return flags;\n}\n/**\n * @param {?} valueCount\n * @param {?} constAndInterp\n * @return {?}\n */\nfunction interpolate(valueCount, constAndInterp) {\n    /** @type {?} */\n    let result = '';\n    for (let i = 0; i < valueCount * 2; i = i + 2) {\n        result = result + constAndInterp[i] + _toStringWithNull(constAndInterp[i + 1]);\n    }\n    return result + constAndInterp[valueCount * 2];\n}\n/**\n * @param {?} valueCount\n * @param {?} c0\n * @param {?} a1\n * @param {?} c1\n * @param {?=} a2\n * @param {?=} c2\n * @param {?=} a3\n * @param {?=} c3\n * @param {?=} a4\n * @param {?=} c4\n * @param {?=} a5\n * @param {?=} c5\n * @param {?=} a6\n * @param {?=} c6\n * @param {?=} a7\n * @param {?=} c7\n * @param {?=} a8\n * @param {?=} c8\n * @param {?=} a9\n * @param {?=} c9\n * @return {?}\n */\nfunction inlineInterpolate(valueCount, c0, a1, c1, a2, c2, a3, c3, a4, c4, a5, c5, a6, c6, a7, c7, a8, c8, a9, c9) {\n    switch (valueCount) {\n        case 1:\n            return c0 + _toStringWithNull(a1) + c1;\n        case 2:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2;\n        case 3:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2 + _toStringWithNull(a3) +\n                c3;\n        case 4:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2 + _toStringWithNull(a3) +\n                c3 + _toStringWithNull(a4) + c4;\n        case 5:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2 + _toStringWithNull(a3) +\n                c3 + _toStringWithNull(a4) + c4 + _toStringWithNull(a5) + c5;\n        case 6:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2 + _toStringWithNull(a3) +\n                c3 + _toStringWithNull(a4) + c4 + _toStringWithNull(a5) + c5 + _toStringWithNull(a6) + c6;\n        case 7:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2 + _toStringWithNull(a3) +\n                c3 + _toStringWithNull(a4) + c4 + _toStringWithNull(a5) + c5 + _toStringWithNull(a6) +\n                c6 + _toStringWithNull(a7) + c7;\n        case 8:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2 + _toStringWithNull(a3) +\n                c3 + _toStringWithNull(a4) + c4 + _toStringWithNull(a5) + c5 + _toStringWithNull(a6) +\n                c6 + _toStringWithNull(a7) + c7 + _toStringWithNull(a8) + c8;\n        case 9:\n            return c0 + _toStringWithNull(a1) + c1 + _toStringWithNull(a2) + c2 + _toStringWithNull(a3) +\n                c3 + _toStringWithNull(a4) + c4 + _toStringWithNull(a5) + c5 + _toStringWithNull(a6) +\n                c6 + _toStringWithNull(a7) + c7 + _toStringWithNull(a8) + c8 + _toStringWithNull(a9) + c9;\n        default:\n            throw new Error(`Does not support more than 9 expressions`);\n    }\n}\n/**\n * @param {?} v\n * @return {?}\n */\nfunction _toStringWithNull(v) {\n    return v != null ? v.toString() : '';\n}\n/** @type {?} */\nconst EMPTY_ARRAY$4 = [];\n/** @type {?} */\nconst EMPTY_MAP = {};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/ng_module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst UNDEFINED_VALUE = {};\n/** @type {?} */\nconst InjectorRefTokenKey = tokenKey(Injector);\n/** @type {?} */\nconst INJECTORRefTokenKey = tokenKey(INJECTOR);\n/** @type {?} */\nconst NgModuleRefTokenKey = tokenKey(NgModuleRef);\n/**\n * @param {?} flags\n * @param {?} token\n * @param {?} value\n * @param {?} deps\n * @return {?}\n */\nfunction moduleProvideDef(flags, token, value, deps) {\n    // Need to resolve forwardRefs as e.g. for `useValue` we\n    // lowered the expression and then stopped evaluating it,\n    // i.e. also didn't unwrap it.\n    value = resolveForwardRef(value);\n    /** @type {?} */\n    const depDefs = splitDepsDsl(deps, stringify(token));\n    return {\n        // will bet set by the module definition\n        index: -1,\n        deps: depDefs,\n        flags,\n        token,\n        value\n    };\n}\n/**\n * @param {?} providers\n * @return {?}\n */\nfunction moduleDef(providers) {\n    /** @type {?} */\n    const providersByKey = {};\n    /** @type {?} */\n    const modules = [];\n    /** @type {?} */\n    let scope = null;\n    for (let i = 0; i < providers.length; i++) {\n        /** @type {?} */\n        const provider = providers[i];\n        if (provider.token === INJECTOR_SCOPE) {\n            scope = provider.value;\n        }\n        if (provider.flags & 1073741824 /* TypeNgModule */) {\n            modules.push(provider.token);\n        }\n        provider.index = i;\n        providersByKey[tokenKey(provider.token)] = provider;\n    }\n    return {\n        // Will be filled later...\n        factory: null,\n        providersByKey,\n        providers,\n        modules,\n        scope: scope,\n    };\n}\n/**\n * @param {?} data\n * @return {?}\n */\nfunction initNgModule(data) {\n    /** @type {?} */\n    const def = data._def;\n    /** @type {?} */\n    const providers = data._providers = newArray(def.providers.length);\n    for (let i = 0; i < def.providers.length; i++) {\n        /** @type {?} */\n        const provDef = def.providers[i];\n        if (!(provDef.flags & 4096 /* LazyProvider */)) {\n            // Make sure the provider has not been already initialized outside this loop.\n            if (providers[i] === undefined) {\n                providers[i] = _createProviderInstance(data, provDef);\n            }\n        }\n    }\n}\n/**\n * @param {?} data\n * @param {?} depDef\n * @param {?=} notFoundValue\n * @return {?}\n */\nfunction resolveNgModuleDep(data, depDef, notFoundValue = Injector.THROW_IF_NOT_FOUND) {\n    /** @type {?} */\n    const former = setCurrentInjector(data);\n    try {\n        if (depDef.flags & 8 /* Value */) {\n            return depDef.token;\n        }\n        if (depDef.flags & 2 /* Optional */) {\n            notFoundValue = null;\n        }\n        if (depDef.flags & 1 /* SkipSelf */) {\n            return data._parent.get(depDef.token, notFoundValue);\n        }\n        /** @type {?} */\n        const tokenKey = depDef.tokenKey;\n        switch (tokenKey) {\n            case InjectorRefTokenKey:\n            case INJECTORRefTokenKey:\n            case NgModuleRefTokenKey:\n                return data;\n        }\n        /** @type {?} */\n        const providerDef = data._def.providersByKey[tokenKey];\n        /** @type {?} */\n        let injectableDef;\n        if (providerDef) {\n            /** @type {?} */\n            let providerInstance = data._providers[providerDef.index];\n            if (providerInstance === undefined) {\n                providerInstance = data._providers[providerDef.index] =\n                    _createProviderInstance(data, providerDef);\n            }\n            return providerInstance === UNDEFINED_VALUE ? undefined : providerInstance;\n        }\n        else if ((injectableDef = getInjectableDef(depDef.token)) && targetsModule(data, injectableDef)) {\n            /** @type {?} */\n            const index = data._providers.length;\n            data._def.providers[index] = data._def.providersByKey[depDef.tokenKey] = {\n                flags: 1024 /* TypeFactoryProvider */ | 4096 /* LazyProvider */,\n                value: injectableDef.factory,\n                deps: [],\n                index,\n                token: depDef.token,\n            };\n            data._providers[index] = UNDEFINED_VALUE;\n            return (data._providers[index] =\n                _createProviderInstance(data, data._def.providersByKey[depDef.tokenKey]));\n        }\n        else if (depDef.flags & 4 /* Self */) {\n            return notFoundValue;\n        }\n        return data._parent.get(depDef.token, notFoundValue);\n    }\n    finally {\n        setCurrentInjector(former);\n    }\n}\n/**\n * @param {?} ngModule\n * @param {?} scope\n * @return {?}\n */\nfunction moduleTransitivelyPresent(ngModule, scope) {\n    return ngModule._def.modules.indexOf(scope) > -1;\n}\n/**\n * @param {?} ngModule\n * @param {?} def\n * @return {?}\n */\nfunction targetsModule(ngModule, def) {\n    /** @type {?} */\n    const providedIn = def.providedIn;\n    return providedIn != null &&\n        (providedIn === 'any' || providedIn === ngModule._def.scope ||\n            moduleTransitivelyPresent(ngModule, providedIn));\n}\n/**\n * @param {?} ngModule\n * @param {?} providerDef\n * @return {?}\n */\nfunction _createProviderInstance(ngModule, providerDef) {\n    /** @type {?} */\n    let injectable;\n    switch (providerDef.flags & 201347067 /* Types */) {\n        case 512 /* TypeClassProvider */:\n            injectable = _createClass(ngModule, providerDef.value, providerDef.deps);\n            break;\n        case 1024 /* TypeFactoryProvider */:\n            injectable = _callFactory(ngModule, providerDef.value, providerDef.deps);\n            break;\n        case 2048 /* TypeUseExistingProvider */:\n            injectable = resolveNgModuleDep(ngModule, providerDef.deps[0]);\n            break;\n        case 256 /* TypeValueProvider */:\n            injectable = providerDef.value;\n            break;\n    }\n    // The read of `ngOnDestroy` here is slightly expensive as it's megamorphic, so it should be\n    // avoided if possible. The sequence of checks here determines whether ngOnDestroy needs to be\n    // checked. It might not if the `injectable` isn't an object or if NodeFlags.OnDestroy is already\n    // set (ngOnDestroy was detected statically).\n    if (injectable !== UNDEFINED_VALUE && injectable !== null && typeof injectable === 'object' &&\n        !(providerDef.flags & 131072 /* OnDestroy */) && typeof injectable.ngOnDestroy === 'function') {\n        providerDef.flags |= 131072 /* OnDestroy */;\n    }\n    return injectable === undefined ? UNDEFINED_VALUE : injectable;\n}\n/**\n * @param {?} ngModule\n * @param {?} ctor\n * @param {?} deps\n * @return {?}\n */\nfunction _createClass(ngModule, ctor, deps) {\n    /** @type {?} */\n    const len = deps.length;\n    switch (len) {\n        case 0:\n            return new ctor();\n        case 1:\n            return new ctor(resolveNgModuleDep(ngModule, deps[0]));\n        case 2:\n            return new ctor(resolveNgModuleDep(ngModule, deps[0]), resolveNgModuleDep(ngModule, deps[1]));\n        case 3:\n            return new ctor(resolveNgModuleDep(ngModule, deps[0]), resolveNgModuleDep(ngModule, deps[1]), resolveNgModuleDep(ngModule, deps[2]));\n        default:\n            /** @type {?} */\n            const depValues = [];\n            for (let i = 0; i < len; i++) {\n                depValues[i] = resolveNgModuleDep(ngModule, deps[i]);\n            }\n            return new ctor(...depValues);\n    }\n}\n/**\n * @param {?} ngModule\n * @param {?} factory\n * @param {?} deps\n * @return {?}\n */\nfunction _callFactory(ngModule, factory, deps) {\n    /** @type {?} */\n    const len = deps.length;\n    switch (len) {\n        case 0:\n            return factory();\n        case 1:\n            return factory(resolveNgModuleDep(ngModule, deps[0]));\n        case 2:\n            return factory(resolveNgModuleDep(ngModule, deps[0]), resolveNgModuleDep(ngModule, deps[1]));\n        case 3:\n            return factory(resolveNgModuleDep(ngModule, deps[0]), resolveNgModuleDep(ngModule, deps[1]), resolveNgModuleDep(ngModule, deps[2]));\n        default:\n            /** @type {?} */\n            const depValues = [];\n            for (let i = 0; i < len; i++) {\n                depValues[i] = resolveNgModuleDep(ngModule, deps[i]);\n            }\n            return factory(...depValues);\n    }\n}\n/**\n * @param {?} ngModule\n * @param {?} lifecycles\n * @return {?}\n */\nfunction callNgModuleLifecycle(ngModule, lifecycles) {\n    /** @type {?} */\n    const def = ngModule._def;\n    /** @type {?} */\n    const destroyed = new Set();\n    for (let i = 0; i < def.providers.length; i++) {\n        /** @type {?} */\n        const provDef = def.providers[i];\n        if (provDef.flags & 131072 /* OnDestroy */) {\n            /** @type {?} */\n            const instance = ngModule._providers[i];\n            if (instance && instance !== UNDEFINED_VALUE) {\n                /** @type {?} */\n                const onDestroy = instance.ngOnDestroy;\n                if (typeof onDestroy === 'function' && !destroyed.has(instance)) {\n                    onDestroy.apply(instance);\n                    destroyed.add(instance);\n                }\n            }\n        }\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/view_attach.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} parentView\n * @param {?} elementData\n * @param {?} viewIndex\n * @param {?} view\n * @return {?}\n */\nfunction attachEmbeddedView(parentView, elementData, viewIndex, view) {\n    /** @type {?} */\n    let embeddedViews = (/** @type {?} */ (elementData.viewContainer))._embeddedViews;\n    if (viewIndex === null || viewIndex === undefined) {\n        viewIndex = embeddedViews.length;\n    }\n    view.viewContainerParent = parentView;\n    addToArray(embeddedViews, (/** @type {?} */ (viewIndex)), view);\n    attachProjectedView(elementData, view);\n    Services.dirtyParentQueries(view);\n    /** @type {?} */\n    const prevView = (/** @type {?} */ (viewIndex)) > 0 ? embeddedViews[(/** @type {?} */ (viewIndex)) - 1] : null;\n    renderAttachEmbeddedView(elementData, prevView, view);\n}\n/**\n * @param {?} vcElementData\n * @param {?} view\n * @return {?}\n */\nfunction attachProjectedView(vcElementData, view) {\n    /** @type {?} */\n    const dvcElementData = declaredViewContainer(view);\n    if (!dvcElementData || dvcElementData === vcElementData ||\n        view.state & 16 /* IsProjectedView */) {\n        return;\n    }\n    // Note: For performance reasons, we\n    // - add a view to template._projectedViews only 1x throughout its lifetime,\n    //   and remove it not until the view is destroyed.\n    //   (hard, as when a parent view is attached/detached we would need to attach/detach all\n    //    nested projected views as well, even across component boundaries).\n    // - don't track the insertion order of views in the projected views array\n    //   (hard, as when the views of the same template are inserted different view containers)\n    view.state |= 16 /* IsProjectedView */;\n    /** @type {?} */\n    let projectedViews = dvcElementData.template._projectedViews;\n    if (!projectedViews) {\n        projectedViews = dvcElementData.template._projectedViews = [];\n    }\n    projectedViews.push(view);\n    // Note: we are changing the NodeDef here as we cannot calculate\n    // the fact whether a template is used for projection during compilation.\n    markNodeAsProjectedTemplate((/** @type {?} */ (view.parent)).def, (/** @type {?} */ (view.parentNodeDef)));\n}\n/**\n * @param {?} viewDef\n * @param {?} nodeDef\n * @return {?}\n */\nfunction markNodeAsProjectedTemplate(viewDef, nodeDef) {\n    if (nodeDef.flags & 4 /* ProjectedTemplate */) {\n        return;\n    }\n    viewDef.nodeFlags |= 4 /* ProjectedTemplate */;\n    nodeDef.flags |= 4 /* ProjectedTemplate */;\n    /** @type {?} */\n    let parentNodeDef = nodeDef.parent;\n    while (parentNodeDef) {\n        parentNodeDef.childFlags |= 4 /* ProjectedTemplate */;\n        parentNodeDef = parentNodeDef.parent;\n    }\n}\n/**\n * @param {?} elementData\n * @param {?=} viewIndex\n * @return {?}\n */\nfunction detachEmbeddedView(elementData, viewIndex) {\n    /** @type {?} */\n    const embeddedViews = (/** @type {?} */ (elementData.viewContainer))._embeddedViews;\n    if (viewIndex == null || viewIndex >= embeddedViews.length) {\n        viewIndex = embeddedViews.length - 1;\n    }\n    if (viewIndex < 0) {\n        return null;\n    }\n    /** @type {?} */\n    const view = embeddedViews[viewIndex];\n    view.viewContainerParent = null;\n    removeFromArray(embeddedViews, viewIndex);\n    // See attachProjectedView for why we don't update projectedViews here.\n    Services.dirtyParentQueries(view);\n    renderDetachView$1(view);\n    return view;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction detachProjectedView(view) {\n    if (!(view.state & 16 /* IsProjectedView */)) {\n        return;\n    }\n    /** @type {?} */\n    const dvcElementData = declaredViewContainer(view);\n    if (dvcElementData) {\n        /** @type {?} */\n        const projectedViews = dvcElementData.template._projectedViews;\n        if (projectedViews) {\n            removeFromArray(projectedViews, projectedViews.indexOf(view));\n            Services.dirtyParentQueries(view);\n        }\n    }\n}\n/**\n * @param {?} elementData\n * @param {?} oldViewIndex\n * @param {?} newViewIndex\n * @return {?}\n */\nfunction moveEmbeddedView(elementData, oldViewIndex, newViewIndex) {\n    /** @type {?} */\n    const embeddedViews = (/** @type {?} */ (elementData.viewContainer))._embeddedViews;\n    /** @type {?} */\n    const view = embeddedViews[oldViewIndex];\n    removeFromArray(embeddedViews, oldViewIndex);\n    if (newViewIndex == null) {\n        newViewIndex = embeddedViews.length;\n    }\n    addToArray(embeddedViews, newViewIndex, view);\n    // Note: Don't need to change projectedViews as the order in there\n    // as always invalid...\n    Services.dirtyParentQueries(view);\n    renderDetachView$1(view);\n    /** @type {?} */\n    const prevView = newViewIndex > 0 ? embeddedViews[newViewIndex - 1] : null;\n    renderAttachEmbeddedView(elementData, prevView, view);\n    return view;\n}\n/**\n * @param {?} elementData\n * @param {?} prevView\n * @param {?} view\n * @return {?}\n */\nfunction renderAttachEmbeddedView(elementData, prevView, view) {\n    /** @type {?} */\n    const prevRenderNode = prevView ? renderNode(prevView, (/** @type {?} */ (prevView.def.lastRenderRootNode))) : elementData.renderElement;\n    /** @type {?} */\n    const parentNode = view.renderer.parentNode(prevRenderNode);\n    /** @type {?} */\n    const nextSibling = view.renderer.nextSibling(prevRenderNode);\n    // Note: We can't check if `nextSibling` is present, as on WebWorkers it will always be!\n    // However, browsers automatically do `appendChild` when there is no `nextSibling`.\n    visitRootRenderNodes(view, 2 /* InsertBefore */, parentNode, nextSibling, undefined);\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction renderDetachView$1(view) {\n    visitRootRenderNodes(view, 3 /* RemoveChild */, null, null, undefined);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/refs.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst EMPTY_CONTEXT = {};\n// Attention: this function is called as top level function.\n// Putting any logic in here will destroy closure tree shaking!\n/**\n * @param {?} selector\n * @param {?} componentType\n * @param {?} viewDefFactory\n * @param {?} inputs\n * @param {?} outputs\n * @param {?} ngContentSelectors\n * @return {?}\n */\nfunction createComponentFactory(selector, componentType, viewDefFactory, inputs, outputs, ngContentSelectors) {\n    return new ComponentFactory_(selector, componentType, viewDefFactory, inputs, outputs, ngContentSelectors);\n}\n/**\n * @param {?} componentFactory\n * @return {?}\n */\nfunction getComponentViewDefinitionFactory(componentFactory) {\n    return ((/** @type {?} */ (componentFactory))).viewDefFactory;\n}\nclass ComponentFactory_ extends ComponentFactory {\n    /**\n     * @param {?} selector\n     * @param {?} componentType\n     * @param {?} viewDefFactory\n     * @param {?} _inputs\n     * @param {?} _outputs\n     * @param {?} ngContentSelectors\n     */\n    constructor(selector, componentType, viewDefFactory, _inputs, _outputs, ngContentSelectors) {\n        // Attention: this ctor is called as top level function.\n        // Putting any logic in here will destroy closure tree shaking!\n        super();\n        this.selector = selector;\n        this.componentType = componentType;\n        this._inputs = _inputs;\n        this._outputs = _outputs;\n        this.ngContentSelectors = ngContentSelectors;\n        this.viewDefFactory = viewDefFactory;\n    }\n    /**\n     * @return {?}\n     */\n    get inputs() {\n        /** @type {?} */\n        const inputsArr = [];\n        /** @type {?} */\n        const inputs = (/** @type {?} */ (this._inputs));\n        for (let propName in inputs) {\n            /** @type {?} */\n            const templateName = inputs[propName];\n            inputsArr.push({ propName, templateName });\n        }\n        return inputsArr;\n    }\n    /**\n     * @return {?}\n     */\n    get outputs() {\n        /** @type {?} */\n        const outputsArr = [];\n        for (let propName in this._outputs) {\n            /** @type {?} */\n            const templateName = this._outputs[propName];\n            outputsArr.push({ propName, templateName });\n        }\n        return outputsArr;\n    }\n    /**\n     * Creates a new component.\n     * @param {?} injector\n     * @param {?=} projectableNodes\n     * @param {?=} rootSelectorOrNode\n     * @param {?=} ngModule\n     * @return {?}\n     */\n    create(injector, projectableNodes, rootSelectorOrNode, ngModule) {\n        if (!ngModule) {\n            throw new Error('ngModule should be provided');\n        }\n        /** @type {?} */\n        const viewDef = resolveDefinition(this.viewDefFactory);\n        /** @type {?} */\n        const componentNodeIndex = (/** @type {?} */ ((/** @type {?} */ (viewDef.nodes[0].element)).componentProvider)).nodeIndex;\n        /** @type {?} */\n        const view = Services.createRootView(injector, projectableNodes || [], rootSelectorOrNode, viewDef, ngModule, EMPTY_CONTEXT);\n        /** @type {?} */\n        const component = asProviderData(view, componentNodeIndex).instance;\n        if (rootSelectorOrNode) {\n            view.renderer.setAttribute(asElementData(view, 0).renderElement, 'ng-version', VERSION.full);\n        }\n        return new ComponentRef_(view, new ViewRef_(view), component);\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    ComponentFactory_.prototype.viewDefFactory;\n    /** @type {?} */\n    ComponentFactory_.prototype.selector;\n    /** @type {?} */\n    ComponentFactory_.prototype.componentType;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentFactory_.prototype._inputs;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentFactory_.prototype._outputs;\n    /** @type {?} */\n    ComponentFactory_.prototype.ngContentSelectors;\n}\nclass ComponentRef_ extends ComponentRef {\n    /**\n     * @param {?} _view\n     * @param {?} _viewRef\n     * @param {?} _component\n     */\n    constructor(_view, _viewRef, _component) {\n        super();\n        this._view = _view;\n        this._viewRef = _viewRef;\n        this._component = _component;\n        this._elDef = this._view.def.nodes[0];\n        this.hostView = _viewRef;\n        this.changeDetectorRef = _viewRef;\n        this.instance = _component;\n    }\n    /**\n     * @return {?}\n     */\n    get location() {\n        return new ElementRef(asElementData(this._view, this._elDef.nodeIndex).renderElement);\n    }\n    /**\n     * @return {?}\n     */\n    get injector() {\n        return new Injector_(this._view, this._elDef);\n    }\n    /**\n     * @return {?}\n     */\n    get componentType() {\n        return (/** @type {?} */ (this._component.constructor));\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this._viewRef.destroy();\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    onDestroy(callback) {\n        this._viewRef.onDestroy(callback);\n    }\n}\nif (false) {\n    /** @type {?} */\n    ComponentRef_.prototype.hostView;\n    /** @type {?} */\n    ComponentRef_.prototype.instance;\n    /** @type {?} */\n    ComponentRef_.prototype.changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentRef_.prototype._elDef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentRef_.prototype._view;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentRef_.prototype._viewRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentRef_.prototype._component;\n}\n/**\n * @param {?} view\n * @param {?} elDef\n * @param {?} elData\n * @return {?}\n */\nfunction createViewContainerData(view, elDef, elData) {\n    return new ViewContainerRef_(view, elDef, elData);\n}\nclass ViewContainerRef_ {\n    /**\n     * @param {?} _view\n     * @param {?} _elDef\n     * @param {?} _data\n     */\n    constructor(_view, _elDef, _data) {\n        this._view = _view;\n        this._elDef = _elDef;\n        this._data = _data;\n        /**\n         * \\@internal\n         */\n        this._embeddedViews = [];\n    }\n    /**\n     * @return {?}\n     */\n    get element() {\n        return new ElementRef(this._data.renderElement);\n    }\n    /**\n     * @return {?}\n     */\n    get injector() {\n        return new Injector_(this._view, this._elDef);\n    }\n    /**\n     * @deprecated No replacement\n     * @return {?}\n     */\n    get parentInjector() {\n        /** @type {?} */\n        let view = this._view;\n        /** @type {?} */\n        let elDef = this._elDef.parent;\n        while (!elDef && view) {\n            elDef = viewParentEl(view);\n            view = (/** @type {?} */ (view.parent));\n        }\n        return view ? new Injector_(view, elDef) : new Injector_(this._view, null);\n    }\n    /**\n     * @return {?}\n     */\n    clear() {\n        /** @type {?} */\n        const len = this._embeddedViews.length;\n        for (let i = len - 1; i >= 0; i--) {\n            /** @type {?} */\n            const view = (/** @type {?} */ (detachEmbeddedView(this._data, i)));\n            Services.destroyView(view);\n        }\n    }\n    /**\n     * @param {?} index\n     * @return {?}\n     */\n    get(index) {\n        /** @type {?} */\n        const view = this._embeddedViews[index];\n        if (view) {\n            /** @type {?} */\n            const ref = new ViewRef_(view);\n            ref.attachToViewContainerRef(this);\n            return ref;\n        }\n        return null;\n    }\n    /**\n     * @return {?}\n     */\n    get length() {\n        return this._embeddedViews.length;\n    }\n    /**\n     * @template C\n     * @param {?} templateRef\n     * @param {?=} context\n     * @param {?=} index\n     * @return {?}\n     */\n    createEmbeddedView(templateRef, context, index) {\n        /** @type {?} */\n        const viewRef = templateRef.createEmbeddedView(context || (/** @type {?} */ ({})));\n        this.insert(viewRef, index);\n        return viewRef;\n    }\n    /**\n     * @template C\n     * @param {?} componentFactory\n     * @param {?=} index\n     * @param {?=} injector\n     * @param {?=} projectableNodes\n     * @param {?=} ngModuleRef\n     * @return {?}\n     */\n    createComponent(componentFactory, index, injector, projectableNodes, ngModuleRef) {\n        /** @type {?} */\n        const contextInjector = injector || this.parentInjector;\n        if (!ngModuleRef && !(componentFactory instanceof ComponentFactoryBoundToModule)) {\n            ngModuleRef = contextInjector.get(NgModuleRef);\n        }\n        /** @type {?} */\n        const componentRef = componentFactory.create(contextInjector, projectableNodes, undefined, ngModuleRef);\n        this.insert(componentRef.hostView, index);\n        return componentRef;\n    }\n    /**\n     * @param {?} viewRef\n     * @param {?=} index\n     * @return {?}\n     */\n    insert(viewRef, index) {\n        if (viewRef.destroyed) {\n            throw new Error('Cannot insert a destroyed View in a ViewContainer!');\n        }\n        /** @type {?} */\n        const viewRef_ = (/** @type {?} */ (viewRef));\n        /** @type {?} */\n        const viewData = viewRef_._view;\n        attachEmbeddedView(this._view, this._data, index, viewData);\n        viewRef_.attachToViewContainerRef(this);\n        return viewRef;\n    }\n    /**\n     * @param {?} viewRef\n     * @param {?} currentIndex\n     * @return {?}\n     */\n    move(viewRef, currentIndex) {\n        if (viewRef.destroyed) {\n            throw new Error('Cannot move a destroyed View in a ViewContainer!');\n        }\n        /** @type {?} */\n        const previousIndex = this._embeddedViews.indexOf(viewRef._view);\n        moveEmbeddedView(this._data, previousIndex, currentIndex);\n        return viewRef;\n    }\n    /**\n     * @param {?} viewRef\n     * @return {?}\n     */\n    indexOf(viewRef) {\n        return this._embeddedViews.indexOf(((/** @type {?} */ (viewRef)))._view);\n    }\n    /**\n     * @param {?=} index\n     * @return {?}\n     */\n    remove(index) {\n        /** @type {?} */\n        const viewData = detachEmbeddedView(this._data, index);\n        if (viewData) {\n            Services.destroyView(viewData);\n        }\n    }\n    /**\n     * @param {?=} index\n     * @return {?}\n     */\n    detach(index) {\n        /** @type {?} */\n        const view = detachEmbeddedView(this._data, index);\n        return view ? new ViewRef_(view) : null;\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    ViewContainerRef_.prototype._embeddedViews;\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewContainerRef_.prototype._view;\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewContainerRef_.prototype._elDef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewContainerRef_.prototype._data;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction createChangeDetectorRef(view) {\n    return new ViewRef_(view);\n}\nclass ViewRef_ {\n    /**\n     * @param {?} _view\n     */\n    constructor(_view) {\n        this._view = _view;\n        this._viewContainerRef = null;\n        this._appRef = null;\n    }\n    /**\n     * @return {?}\n     */\n    get rootNodes() {\n        return rootRenderNodes(this._view);\n    }\n    /**\n     * @return {?}\n     */\n    get context() {\n        return this._view.context;\n    }\n    /**\n     * @return {?}\n     */\n    get destroyed() {\n        return (this._view.state & 128 /* Destroyed */) !== 0;\n    }\n    /**\n     * @return {?}\n     */\n    markForCheck() {\n        markParentViewsForCheck(this._view);\n    }\n    /**\n     * @return {?}\n     */\n    detach() {\n        this._view.state &= ~4 /* Attached */;\n    }\n    /**\n     * @return {?}\n     */\n    detectChanges() {\n        /** @type {?} */\n        const fs = this._view.root.rendererFactory;\n        if (fs.begin) {\n            fs.begin();\n        }\n        try {\n            Services.checkAndUpdateView(this._view);\n        }\n        finally {\n            if (fs.end) {\n                fs.end();\n            }\n        }\n    }\n    /**\n     * @return {?}\n     */\n    checkNoChanges() {\n        Services.checkNoChangesView(this._view);\n    }\n    /**\n     * @return {?}\n     */\n    reattach() {\n        this._view.state |= 4 /* Attached */;\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    onDestroy(callback) {\n        if (!this._view.disposables) {\n            this._view.disposables = [];\n        }\n        this._view.disposables.push((/** @type {?} */ (callback)));\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (this._appRef) {\n            this._appRef.detachView(this);\n        }\n        else if (this._viewContainerRef) {\n            this._viewContainerRef.detach(this._viewContainerRef.indexOf(this));\n        }\n        Services.destroyView(this._view);\n    }\n    /**\n     * @return {?}\n     */\n    detachFromAppRef() {\n        this._appRef = null;\n        renderDetachView$1(this._view);\n        Services.dirtyParentQueries(this._view);\n    }\n    /**\n     * @param {?} appRef\n     * @return {?}\n     */\n    attachToAppRef(appRef) {\n        if (this._viewContainerRef) {\n            throw new Error('This view is already attached to a ViewContainer!');\n        }\n        this._appRef = appRef;\n    }\n    /**\n     * @param {?} vcRef\n     * @return {?}\n     */\n    attachToViewContainerRef(vcRef) {\n        if (this._appRef) {\n            throw new Error('This view is already attached directly to the ApplicationRef!');\n        }\n        this._viewContainerRef = vcRef;\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    ViewRef_.prototype._view;\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewRef_.prototype._viewContainerRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewRef_.prototype._appRef;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @return {?}\n */\nfunction createTemplateData(view, def) {\n    return new TemplateRef_(view, def);\n}\nclass TemplateRef_ extends TemplateRef {\n    /**\n     * @param {?} _parentView\n     * @param {?} _def\n     */\n    constructor(_parentView, _def) {\n        super();\n        this._parentView = _parentView;\n        this._def = _def;\n    }\n    /**\n     * @param {?} context\n     * @return {?}\n     */\n    createEmbeddedView(context) {\n        return new ViewRef_(Services.createEmbeddedView(this._parentView, this._def, (/** @type {?} */ ((/** @type {?} */ (this._def.element)).template)), context));\n    }\n    /**\n     * @return {?}\n     */\n    get elementRef() {\n        return new ElementRef(asElementData(this._parentView, this._def.nodeIndex).renderElement);\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    TemplateRef_.prototype._projectedViews;\n    /**\n     * @type {?}\n     * @private\n     */\n    TemplateRef_.prototype._parentView;\n    /**\n     * @type {?}\n     * @private\n     */\n    TemplateRef_.prototype._def;\n}\n/**\n * @param {?} view\n * @param {?} elDef\n * @return {?}\n */\nfunction createInjector$1(view, elDef) {\n    return new Injector_(view, elDef);\n}\nclass Injector_ {\n    /**\n     * @param {?} view\n     * @param {?} elDef\n     */\n    constructor(view, elDef) {\n        this.view = view;\n        this.elDef = elDef;\n    }\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @return {?}\n     */\n    get(token, notFoundValue = Injector.THROW_IF_NOT_FOUND) {\n        /** @type {?} */\n        const allowPrivateServices = this.elDef ? (this.elDef.flags & 33554432 /* ComponentView */) !== 0 : false;\n        return Services.resolveDep(this.view, this.elDef, allowPrivateServices, { flags: 0 /* None */, token, tokenKey: tokenKey(token) }, notFoundValue);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    Injector_.prototype.view;\n    /**\n     * @type {?}\n     * @private\n     */\n    Injector_.prototype.elDef;\n}\n/**\n * @param {?} view\n * @param {?} index\n * @return {?}\n */\nfunction nodeValue(view, index) {\n    /** @type {?} */\n    const def = view.def.nodes[index];\n    if (def.flags & 1 /* TypeElement */) {\n        /** @type {?} */\n        const elData = asElementData(view, def.nodeIndex);\n        return (/** @type {?} */ (def.element)).template ? elData.template : elData.renderElement;\n    }\n    else if (def.flags & 2 /* TypeText */) {\n        return asTextData(view, def.nodeIndex).renderText;\n    }\n    else if (def.flags & (20224 /* CatProvider */ | 16 /* TypePipe */)) {\n        return asProviderData(view, def.nodeIndex).instance;\n    }\n    throw new Error(`Illegal state: read nodeValue for node index ${index}`);\n}\n/**\n * @param {?} moduleType\n * @param {?} parent\n * @param {?} bootstrapComponents\n * @param {?} def\n * @return {?}\n */\nfunction createNgModuleRef(moduleType, parent, bootstrapComponents, def) {\n    return new NgModuleRef_(moduleType, parent, bootstrapComponents, def);\n}\nclass NgModuleRef_ {\n    /**\n     * @param {?} _moduleType\n     * @param {?} _parent\n     * @param {?} _bootstrapComponents\n     * @param {?} _def\n     */\n    constructor(_moduleType, _parent, _bootstrapComponents, _def) {\n        this._moduleType = _moduleType;\n        this._parent = _parent;\n        this._bootstrapComponents = _bootstrapComponents;\n        this._def = _def;\n        this._destroyListeners = [];\n        this._destroyed = false;\n        this.injector = this;\n        initNgModule(this);\n    }\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @param {?=} injectFlags\n     * @return {?}\n     */\n    get(token, notFoundValue = Injector.THROW_IF_NOT_FOUND, injectFlags = InjectFlags.Default) {\n        /** @type {?} */\n        let flags = 0 /* None */;\n        if (injectFlags & InjectFlags.SkipSelf) {\n            flags |= 1 /* SkipSelf */;\n        }\n        else if (injectFlags & InjectFlags.Self) {\n            flags |= 4 /* Self */;\n        }\n        return resolveNgModuleDep(this, { token: token, tokenKey: tokenKey(token), flags: flags }, notFoundValue);\n    }\n    /**\n     * @return {?}\n     */\n    get instance() {\n        return this.get(this._moduleType);\n    }\n    /**\n     * @return {?}\n     */\n    get componentFactoryResolver() {\n        return this.get(ComponentFactoryResolver);\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (this._destroyed) {\n            throw new Error(`The ng module ${stringify(this.instance.constructor)} has already been destroyed.`);\n        }\n        this._destroyed = true;\n        callNgModuleLifecycle(this, 131072 /* OnDestroy */);\n        this._destroyListeners.forEach((/**\n         * @param {?} listener\n         * @return {?}\n         */\n        (listener) => listener()));\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    onDestroy(callback) {\n        this._destroyListeners.push(callback);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgModuleRef_.prototype._destroyListeners;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgModuleRef_.prototype._destroyed;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    NgModuleRef_.prototype._providers;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    NgModuleRef_.prototype._modules;\n    /** @type {?} */\n    NgModuleRef_.prototype.injector;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgModuleRef_.prototype._moduleType;\n    /** @type {?} */\n    NgModuleRef_.prototype._parent;\n    /** @type {?} */\n    NgModuleRef_.prototype._bootstrapComponents;\n    /** @type {?} */\n    NgModuleRef_.prototype._def;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/provider.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst Renderer2TokenKey = tokenKey(Renderer2);\n/** @type {?} */\nconst ElementRefTokenKey = tokenKey(ElementRef);\n/** @type {?} */\nconst ViewContainerRefTokenKey = tokenKey(ViewContainerRef);\n/** @type {?} */\nconst TemplateRefTokenKey = tokenKey(TemplateRef);\n/** @type {?} */\nconst ChangeDetectorRefTokenKey = tokenKey(ChangeDetectorRef);\n/** @type {?} */\nconst InjectorRefTokenKey$1 = tokenKey(Injector);\n/** @type {?} */\nconst INJECTORRefTokenKey$1 = tokenKey(INJECTOR);\n/**\n * @param {?} checkIndex\n * @param {?} flags\n * @param {?} matchedQueries\n * @param {?} childCount\n * @param {?} ctor\n * @param {?} deps\n * @param {?=} props\n * @param {?=} outputs\n * @return {?}\n */\nfunction directiveDef(checkIndex, flags, matchedQueries, childCount, ctor, deps, props, outputs) {\n    /** @type {?} */\n    const bindings = [];\n    if (props) {\n        for (let prop in props) {\n            const [bindingIndex, nonMinifiedName] = props[prop];\n            bindings[bindingIndex] = {\n                flags: 8 /* TypeProperty */,\n                name: prop,\n                nonMinifiedName,\n                ns: null,\n                securityContext: null,\n                suffix: null\n            };\n        }\n    }\n    /** @type {?} */\n    const outputDefs = [];\n    if (outputs) {\n        for (let propName in outputs) {\n            outputDefs.push({ type: 1 /* DirectiveOutput */, propName, target: null, eventName: outputs[propName] });\n        }\n    }\n    flags |= 16384 /* TypeDirective */;\n    return _def(checkIndex, flags, matchedQueries, childCount, ctor, ctor, deps, bindings, outputDefs);\n}\n/**\n * @param {?} flags\n * @param {?} ctor\n * @param {?} deps\n * @return {?}\n */\nfunction pipeDef(flags, ctor, deps) {\n    flags |= 16 /* TypePipe */;\n    return _def(-1, flags, null, 0, ctor, ctor, deps);\n}\n/**\n * @param {?} flags\n * @param {?} matchedQueries\n * @param {?} token\n * @param {?} value\n * @param {?} deps\n * @return {?}\n */\nfunction providerDef(flags, matchedQueries, token, value, deps) {\n    return _def(-1, flags, matchedQueries, 0, token, value, deps);\n}\n/**\n * @param {?} checkIndex\n * @param {?} flags\n * @param {?} matchedQueriesDsl\n * @param {?} childCount\n * @param {?} token\n * @param {?} value\n * @param {?} deps\n * @param {?=} bindings\n * @param {?=} outputs\n * @return {?}\n */\nfunction _def(checkIndex, flags, matchedQueriesDsl, childCount, token, value, deps, bindings, outputs) {\n    const { matchedQueries, references, matchedQueryIds } = splitMatchedQueriesDsl(matchedQueriesDsl);\n    if (!outputs) {\n        outputs = [];\n    }\n    if (!bindings) {\n        bindings = [];\n    }\n    // Need to resolve forwardRefs as e.g. for `useValue` we\n    // lowered the expression and then stopped evaluating it,\n    // i.e. also didn't unwrap it.\n    value = resolveForwardRef(value);\n    /** @type {?} */\n    const depDefs = splitDepsDsl(deps, stringify(token));\n    return {\n        // will bet set by the view definition\n        nodeIndex: -1,\n        parent: null,\n        renderParent: null,\n        bindingIndex: -1,\n        outputIndex: -1,\n        // regular values\n        checkIndex,\n        flags,\n        childFlags: 0,\n        directChildFlags: 0,\n        childMatchedQueries: 0,\n        matchedQueries,\n        matchedQueryIds,\n        references,\n        ngContentIndex: -1,\n        childCount,\n        bindings,\n        bindingFlags: calcBindingFlags(bindings),\n        outputs,\n        element: null,\n        provider: { token, value, deps: depDefs },\n        text: null,\n        query: null,\n        ngContent: null\n    };\n}\n/**\n * @param {?} view\n * @param {?} def\n * @return {?}\n */\nfunction createProviderInstance(view, def) {\n    return _createProviderInstance$1(view, def);\n}\n/**\n * @param {?} view\n * @param {?} def\n * @return {?}\n */\nfunction createPipeInstance(view, def) {\n    // deps are looked up from component.\n    /** @type {?} */\n    let compView = view;\n    while (compView.parent && !isComponentView(compView)) {\n        compView = compView.parent;\n    }\n    // pipes can see the private services of the component\n    /** @type {?} */\n    const allowPrivateServices = true;\n    // pipes are always eager and classes!\n    return createClass((/** @type {?} */ (compView.parent)), (/** @type {?} */ (viewParentEl(compView))), allowPrivateServices, (/** @type {?} */ (def.provider)).value, (/** @type {?} */ (def.provider)).deps);\n}\n/**\n * @param {?} view\n * @param {?} def\n * @return {?}\n */\nfunction createDirectiveInstance(view, def) {\n    // components can see other private services, other directives can't.\n    /** @type {?} */\n    const allowPrivateServices = (def.flags & 32768 /* Component */) > 0;\n    // directives are always eager and classes!\n    /** @type {?} */\n    const instance = createClass(view, (/** @type {?} */ (def.parent)), allowPrivateServices, (/** @type {?} */ (def.provider)).value, (/** @type {?} */ (def.provider)).deps);\n    if (def.outputs.length) {\n        for (let i = 0; i < def.outputs.length; i++) {\n            /** @type {?} */\n            const output = def.outputs[i];\n            /** @type {?} */\n            const outputObservable = instance[(/** @type {?} */ (output.propName))];\n            if (isObservable(outputObservable)) {\n                /** @type {?} */\n                const subscription = outputObservable.subscribe(eventHandlerClosure(view, (/** @type {?} */ (def.parent)).nodeIndex, output.eventName));\n                (/** @type {?} */ (view.disposables))[def.outputIndex + i] = subscription.unsubscribe.bind(subscription);\n            }\n            else {\n                throw new Error(`@Output ${output.propName} not initialized in '${instance.constructor.name}'.`);\n            }\n        }\n    }\n    return instance;\n}\n/**\n * @param {?} view\n * @param {?} index\n * @param {?} eventName\n * @return {?}\n */\nfunction eventHandlerClosure(view, index, eventName) {\n    return (/**\n     * @param {?} event\n     * @return {?}\n     */\n    (event) => dispatchEvent(view, index, eventName, event));\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} v0\n * @param {?} v1\n * @param {?} v2\n * @param {?} v3\n * @param {?} v4\n * @param {?} v5\n * @param {?} v6\n * @param {?} v7\n * @param {?} v8\n * @param {?} v9\n * @return {?}\n */\nfunction checkAndUpdateDirectiveInline(view, def, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    /** @type {?} */\n    const providerData = asProviderData(view, def.nodeIndex);\n    /** @type {?} */\n    const directive = providerData.instance;\n    /** @type {?} */\n    let changed = false;\n    /** @type {?} */\n    let changes = (/** @type {?} */ (undefined));\n    /** @type {?} */\n    const bindLen = def.bindings.length;\n    if (bindLen > 0 && checkBinding(view, def, 0, v0)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 0, v0, changes);\n    }\n    if (bindLen > 1 && checkBinding(view, def, 1, v1)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 1, v1, changes);\n    }\n    if (bindLen > 2 && checkBinding(view, def, 2, v2)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 2, v2, changes);\n    }\n    if (bindLen > 3 && checkBinding(view, def, 3, v3)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 3, v3, changes);\n    }\n    if (bindLen > 4 && checkBinding(view, def, 4, v4)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 4, v4, changes);\n    }\n    if (bindLen > 5 && checkBinding(view, def, 5, v5)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 5, v5, changes);\n    }\n    if (bindLen > 6 && checkBinding(view, def, 6, v6)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 6, v6, changes);\n    }\n    if (bindLen > 7 && checkBinding(view, def, 7, v7)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 7, v7, changes);\n    }\n    if (bindLen > 8 && checkBinding(view, def, 8, v8)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 8, v8, changes);\n    }\n    if (bindLen > 9 && checkBinding(view, def, 9, v9)) {\n        changed = true;\n        changes = updateProp(view, providerData, def, 9, v9, changes);\n    }\n    if (changes) {\n        directive.ngOnChanges(changes);\n    }\n    if ((def.flags & 65536 /* OnInit */) &&\n        shouldCallLifecycleInitHook(view, 256 /* InitState_CallingOnInit */, def.nodeIndex)) {\n        directive.ngOnInit();\n    }\n    if (def.flags & 262144 /* DoCheck */) {\n        directive.ngDoCheck();\n    }\n    return changed;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} values\n * @return {?}\n */\nfunction checkAndUpdateDirectiveDynamic(view, def, values) {\n    /** @type {?} */\n    const providerData = asProviderData(view, def.nodeIndex);\n    /** @type {?} */\n    const directive = providerData.instance;\n    /** @type {?} */\n    let changed = false;\n    /** @type {?} */\n    let changes = (/** @type {?} */ (undefined));\n    for (let i = 0; i < values.length; i++) {\n        if (checkBinding(view, def, i, values[i])) {\n            changed = true;\n            changes = updateProp(view, providerData, def, i, values[i], changes);\n        }\n    }\n    if (changes) {\n        directive.ngOnChanges(changes);\n    }\n    if ((def.flags & 65536 /* OnInit */) &&\n        shouldCallLifecycleInitHook(view, 256 /* InitState_CallingOnInit */, def.nodeIndex)) {\n        directive.ngOnInit();\n    }\n    if (def.flags & 262144 /* DoCheck */) {\n        directive.ngDoCheck();\n    }\n    return changed;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @return {?}\n */\nfunction _createProviderInstance$1(view, def) {\n    // private services can see other private services\n    /** @type {?} */\n    const allowPrivateServices = (def.flags & 8192 /* PrivateProvider */) > 0;\n    /** @type {?} */\n    const providerDef = def.provider;\n    switch (def.flags & 201347067 /* Types */) {\n        case 512 /* TypeClassProvider */:\n            return createClass(view, (/** @type {?} */ (def.parent)), allowPrivateServices, (/** @type {?} */ (providerDef)).value, (/** @type {?} */ (providerDef)).deps);\n        case 1024 /* TypeFactoryProvider */:\n            return callFactory(view, (/** @type {?} */ (def.parent)), allowPrivateServices, (/** @type {?} */ (providerDef)).value, (/** @type {?} */ (providerDef)).deps);\n        case 2048 /* TypeUseExistingProvider */:\n            return resolveDep(view, (/** @type {?} */ (def.parent)), allowPrivateServices, (/** @type {?} */ (providerDef)).deps[0]);\n        case 256 /* TypeValueProvider */:\n            return (/** @type {?} */ (providerDef)).value;\n    }\n}\n/**\n * @param {?} view\n * @param {?} elDef\n * @param {?} allowPrivateServices\n * @param {?} ctor\n * @param {?} deps\n * @return {?}\n */\nfunction createClass(view, elDef, allowPrivateServices, ctor, deps) {\n    /** @type {?} */\n    const len = deps.length;\n    switch (len) {\n        case 0:\n            return new ctor();\n        case 1:\n            return new ctor(resolveDep(view, elDef, allowPrivateServices, deps[0]));\n        case 2:\n            return new ctor(resolveDep(view, elDef, allowPrivateServices, deps[0]), resolveDep(view, elDef, allowPrivateServices, deps[1]));\n        case 3:\n            return new ctor(resolveDep(view, elDef, allowPrivateServices, deps[0]), resolveDep(view, elDef, allowPrivateServices, deps[1]), resolveDep(view, elDef, allowPrivateServices, deps[2]));\n        default:\n            /** @type {?} */\n            const depValues = [];\n            for (let i = 0; i < len; i++) {\n                depValues.push(resolveDep(view, elDef, allowPrivateServices, deps[i]));\n            }\n            return new ctor(...depValues);\n    }\n}\n/**\n * @param {?} view\n * @param {?} elDef\n * @param {?} allowPrivateServices\n * @param {?} factory\n * @param {?} deps\n * @return {?}\n */\nfunction callFactory(view, elDef, allowPrivateServices, factory, deps) {\n    /** @type {?} */\n    const len = deps.length;\n    switch (len) {\n        case 0:\n            return factory();\n        case 1:\n            return factory(resolveDep(view, elDef, allowPrivateServices, deps[0]));\n        case 2:\n            return factory(resolveDep(view, elDef, allowPrivateServices, deps[0]), resolveDep(view, elDef, allowPrivateServices, deps[1]));\n        case 3:\n            return factory(resolveDep(view, elDef, allowPrivateServices, deps[0]), resolveDep(view, elDef, allowPrivateServices, deps[1]), resolveDep(view, elDef, allowPrivateServices, deps[2]));\n        default:\n            /** @type {?} */\n            const depValues = [];\n            for (let i = 0; i < len; i++) {\n                depValues.push(resolveDep(view, elDef, allowPrivateServices, deps[i]));\n            }\n            return factory(...depValues);\n    }\n}\n// This default value is when checking the hierarchy for a token.\n//\n// It means both:\n// - the token is not provided by the current injector,\n// - only the element injectors should be checked (ie do not check module injectors\n//\n//          mod1\n//         /\n//       el1   mod2\n//         \\  /\n//         el2\n//\n// When requesting el2.injector.get(token), we should check in the following order and return the\n// first found value:\n// - el2.injector.get(token, default)\n// - el1.injector.get(token, NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR) -> do not check the module\n// - mod2.injector.get(token, default)\n/** @type {?} */\nconst NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR = {};\n/**\n * @param {?} view\n * @param {?} elDef\n * @param {?} allowPrivateServices\n * @param {?} depDef\n * @param {?=} notFoundValue\n * @return {?}\n */\nfunction resolveDep(view, elDef, allowPrivateServices, depDef, notFoundValue = Injector.THROW_IF_NOT_FOUND) {\n    if (depDef.flags & 8 /* Value */) {\n        return depDef.token;\n    }\n    /** @type {?} */\n    const startView = view;\n    if (depDef.flags & 2 /* Optional */) {\n        notFoundValue = null;\n    }\n    /** @type {?} */\n    const tokenKey = depDef.tokenKey;\n    if (tokenKey === ChangeDetectorRefTokenKey) {\n        // directives on the same element as a component should be able to control the change detector\n        // of that component as well.\n        allowPrivateServices = !!(elDef && (/** @type {?} */ (elDef.element)).componentView);\n    }\n    if (elDef && (depDef.flags & 1 /* SkipSelf */)) {\n        allowPrivateServices = false;\n        elDef = (/** @type {?} */ (elDef.parent));\n    }\n    /** @type {?} */\n    let searchView = view;\n    while (searchView) {\n        if (elDef) {\n            switch (tokenKey) {\n                case Renderer2TokenKey: {\n                    /** @type {?} */\n                    const compView = findCompView(searchView, elDef, allowPrivateServices);\n                    return compView.renderer;\n                }\n                case ElementRefTokenKey:\n                    return new ElementRef(asElementData(searchView, elDef.nodeIndex).renderElement);\n                case ViewContainerRefTokenKey:\n                    return asElementData(searchView, elDef.nodeIndex).viewContainer;\n                case TemplateRefTokenKey: {\n                    if ((/** @type {?} */ (elDef.element)).template) {\n                        return asElementData(searchView, elDef.nodeIndex).template;\n                    }\n                    break;\n                }\n                case ChangeDetectorRefTokenKey: {\n                    /** @type {?} */\n                    let cdView = findCompView(searchView, elDef, allowPrivateServices);\n                    return createChangeDetectorRef(cdView);\n                }\n                case InjectorRefTokenKey$1:\n                case INJECTORRefTokenKey$1:\n                    return createInjector$1(searchView, elDef);\n                default:\n                    /** @type {?} */\n                    const providerDef = (/** @type {?} */ ((allowPrivateServices ? (/** @type {?} */ (elDef.element)).allProviders :\n                        (/** @type {?} */ (elDef.element)).publicProviders)))[tokenKey];\n                    if (providerDef) {\n                        /** @type {?} */\n                        let providerData = asProviderData(searchView, providerDef.nodeIndex);\n                        if (!providerData) {\n                            providerData = { instance: _createProviderInstance$1(searchView, providerDef) };\n                            searchView.nodes[providerDef.nodeIndex] = (/** @type {?} */ (providerData));\n                        }\n                        return providerData.instance;\n                    }\n            }\n        }\n        allowPrivateServices = isComponentView(searchView);\n        elDef = (/** @type {?} */ (viewParentEl(searchView)));\n        searchView = (/** @type {?} */ (searchView.parent));\n        if (depDef.flags & 4 /* Self */) {\n            searchView = null;\n        }\n    }\n    /** @type {?} */\n    const value = startView.root.injector.get(depDef.token, NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR);\n    if (value !== NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR ||\n        notFoundValue === NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR) {\n        // Return the value from the root element injector when\n        // - it provides it\n        //   (value !== NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR)\n        // - the module injector should not be checked\n        //   (notFoundValue === NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR)\n        return value;\n    }\n    return startView.root.ngModule.injector.get(depDef.token, notFoundValue);\n}\n/**\n * @param {?} view\n * @param {?} elDef\n * @param {?} allowPrivateServices\n * @return {?}\n */\nfunction findCompView(view, elDef, allowPrivateServices) {\n    /** @type {?} */\n    let compView;\n    if (allowPrivateServices) {\n        compView = asElementData(view, elDef.nodeIndex).componentView;\n    }\n    else {\n        compView = view;\n        while (compView.parent && !isComponentView(compView)) {\n            compView = compView.parent;\n        }\n    }\n    return compView;\n}\n/**\n * @param {?} view\n * @param {?} providerData\n * @param {?} def\n * @param {?} bindingIdx\n * @param {?} value\n * @param {?} changes\n * @return {?}\n */\nfunction updateProp(view, providerData, def, bindingIdx, value, changes) {\n    if (def.flags & 32768 /* Component */) {\n        /** @type {?} */\n        const compView = asElementData(view, (/** @type {?} */ (def.parent)).nodeIndex).componentView;\n        if (compView.def.flags & 2 /* OnPush */) {\n            compView.state |= 8 /* ChecksEnabled */;\n        }\n    }\n    /** @type {?} */\n    const binding = def.bindings[bindingIdx];\n    /** @type {?} */\n    const propName = (/** @type {?} */ (binding.name));\n    // Note: This is still safe with Closure Compiler as\n    // the user passed in the property name as an object has to `providerDef`,\n    // so Closure Compiler will have renamed the property correctly already.\n    providerData.instance[propName] = value;\n    if (def.flags & 524288 /* OnChanges */) {\n        changes = changes || {};\n        /** @type {?} */\n        const oldValue = WrappedValue.unwrap(view.oldValues[def.bindingIndex + bindingIdx]);\n        /** @type {?} */\n        const binding = def.bindings[bindingIdx];\n        changes[(/** @type {?} */ (binding.nonMinifiedName))] =\n            new SimpleChange(oldValue, value, (view.state & 2 /* FirstCheck */) !== 0);\n    }\n    view.oldValues[def.bindingIndex + bindingIdx] = value;\n    return changes;\n}\n// This function calls the ngAfterContentCheck, ngAfterContentInit,\n// ngAfterViewCheck, and ngAfterViewInit lifecycle hooks (depending on the node\n// flags in lifecycle). Unlike ngDoCheck, ngOnChanges and ngOnInit, which are\n// called during a pre-order traversal of the view tree (that is calling the\n// parent hooks before the child hooks) these events are sent in using a\n// post-order traversal of the tree (children before parents). This changes the\n// meaning of initIndex in the view state. For ngOnInit, initIndex tracks the\n// expected nodeIndex which a ngOnInit should be called. When sending\n// ngAfterContentInit and ngAfterViewInit it is the expected count of\n// ngAfterContentInit or ngAfterViewInit methods that have been called. This\n// ensure that despite being called recursively or after picking up after an\n// exception, the ngAfterContentInit or ngAfterViewInit will be called on the\n// correct nodes. Consider for example, the following (where E is an element\n// and D is a directive)\n//  Tree:       pre-order index  post-order index\n//    E1        0                6\n//      E2      1                1\n//       D3     2                0\n//      E4      3                5\n//       E5     4                4\n//        E6    5                2\n//        E7    6                3\n// As can be seen, the post-order index has an unclear relationship to the\n// pre-order index (postOrderIndex === preOrderIndex - parentCount +\n// childCount). Since number of calls to ngAfterContentInit and ngAfterViewInit\n// are stable (will be the same for the same view regardless of exceptions or\n// recursion) we just need to count them which will roughly correspond to the\n// post-order index (it skips elements and directives that do not have\n// lifecycle hooks).\n//\n// For example, if an exception is raised in the E6.onAfterViewInit() the\n// initIndex is left at 3 (by shouldCallLifecycleInitHook() which set it to\n// initIndex + 1). When checkAndUpdateView() is called again D3, E2 and E6 will\n// not have their ngAfterViewInit() called but, starting with E7, the rest of\n// the view will begin getting ngAfterViewInit() called until a check and\n// pass is complete.\n//\n// This algorthim also handles recursion. Consider if E4's ngAfterViewInit()\n// indirectly calls E1's ChangeDetectorRef.detectChanges(). The expected\n// initIndex is set to 6, the recusive checkAndUpdateView() starts walk again.\n// D3, E2, E6, E7, E5 and E4 are skipped, ngAfterViewInit() is called on E1.\n// When the recursion returns the initIndex will be 7 so E1 is skipped as it\n// has already been called in the recursively called checkAnUpdateView().\n/**\n * @param {?} view\n * @param {?} lifecycles\n * @return {?}\n */\nfunction callLifecycleHooksChildrenFirst(view, lifecycles) {\n    if (!(view.def.nodeFlags & lifecycles)) {\n        return;\n    }\n    /** @type {?} */\n    const nodes = view.def.nodes;\n    /** @type {?} */\n    let initIndex = 0;\n    for (let i = 0; i < nodes.length; i++) {\n        /** @type {?} */\n        const nodeDef = nodes[i];\n        /** @type {?} */\n        let parent = nodeDef.parent;\n        if (!parent && nodeDef.flags & lifecycles) {\n            // matching root node (e.g. a pipe)\n            callProviderLifecycles(view, i, nodeDef.flags & lifecycles, initIndex++);\n        }\n        if ((nodeDef.childFlags & lifecycles) === 0) {\n            // no child matches one of the lifecycles\n            i += nodeDef.childCount;\n        }\n        while (parent && (parent.flags & 1 /* TypeElement */) &&\n            i === parent.nodeIndex + parent.childCount) {\n            // last child of an element\n            if (parent.directChildFlags & lifecycles) {\n                initIndex = callElementProvidersLifecycles(view, parent, lifecycles, initIndex);\n            }\n            parent = parent.parent;\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} elDef\n * @param {?} lifecycles\n * @param {?} initIndex\n * @return {?}\n */\nfunction callElementProvidersLifecycles(view, elDef, lifecycles, initIndex) {\n    for (let i = elDef.nodeIndex + 1; i <= elDef.nodeIndex + elDef.childCount; i++) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[i];\n        if (nodeDef.flags & lifecycles) {\n            callProviderLifecycles(view, i, nodeDef.flags & lifecycles, initIndex++);\n        }\n        // only visit direct children\n        i += nodeDef.childCount;\n    }\n    return initIndex;\n}\n/**\n * @param {?} view\n * @param {?} index\n * @param {?} lifecycles\n * @param {?} initIndex\n * @return {?}\n */\nfunction callProviderLifecycles(view, index, lifecycles, initIndex) {\n    /** @type {?} */\n    const providerData = asProviderData(view, index);\n    if (!providerData) {\n        return;\n    }\n    /** @type {?} */\n    const provider = providerData.instance;\n    if (!provider) {\n        return;\n    }\n    Services.setCurrentNode(view, index);\n    if (lifecycles & 1048576 /* AfterContentInit */ &&\n        shouldCallLifecycleInitHook(view, 512 /* InitState_CallingAfterContentInit */, initIndex)) {\n        provider.ngAfterContentInit();\n    }\n    if (lifecycles & 2097152 /* AfterContentChecked */) {\n        provider.ngAfterContentChecked();\n    }\n    if (lifecycles & 4194304 /* AfterViewInit */ &&\n        shouldCallLifecycleInitHook(view, 768 /* InitState_CallingAfterViewInit */, initIndex)) {\n        provider.ngAfterViewInit();\n    }\n    if (lifecycles & 8388608 /* AfterViewChecked */) {\n        provider.ngAfterViewChecked();\n    }\n    if (lifecycles & 131072 /* OnDestroy */) {\n        provider.ngOnDestroy();\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/component_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass ComponentFactoryResolver$1 extends ComponentFactoryResolver {\n    /**\n     * @param {?=} ngModule The NgModuleRef to which all resolved factories are bound.\n     */\n    constructor(ngModule) {\n        super();\n        this.ngModule = ngModule;\n    }\n    /**\n     * @template T\n     * @param {?} component\n     * @return {?}\n     */\n    resolveComponentFactory(component) {\n        ngDevMode && assertComponentType(component);\n        /** @type {?} */\n        const componentDef = (/** @type {?} */ (getComponentDef(component)));\n        return new ComponentFactory$1(componentDef, this.ngModule);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentFactoryResolver$1.prototype.ngModule;\n}\n/**\n * @param {?} map\n * @return {?}\n */\nfunction toRefArray(map) {\n    /** @type {?} */\n    const array = [];\n    for (let nonMinified in map) {\n        if (map.hasOwnProperty(nonMinified)) {\n            /** @type {?} */\n            const minified = map[nonMinified];\n            array.push({ propName: minified, templateName: nonMinified });\n        }\n    }\n    return array;\n}\n/**\n * @param {?} elementName\n * @return {?}\n */\nfunction getNamespace$1(elementName) {\n    /** @type {?} */\n    const name = elementName.toLowerCase();\n    return name === 'svg' ? SVG_NAMESPACE : (name === 'math' ? MATH_ML_NAMESPACE : null);\n}\n/**\n * A change detection scheduler token for {\\@link RootContext}. This token is the default value used\n * for the default `RootContext` found in the {\\@link ROOT_CONTEXT} token.\n * @type {?}\n */\nconst SCHEDULER = new InjectionToken('SCHEDULER_TOKEN', {\n    providedIn: 'root',\n    factory: (/**\n     * @return {?}\n     */\n    () => defaultScheduler),\n});\n/**\n * @param {?} rootViewInjector\n * @param {?} moduleInjector\n * @return {?}\n */\nfunction createChainedInjector(rootViewInjector, moduleInjector) {\n    return {\n        get: (/**\n         * @template T\n         * @param {?} token\n         * @param {?=} notFoundValue\n         * @param {?=} flags\n         * @return {?}\n         */\n        (token, notFoundValue, flags) => {\n            /** @type {?} */\n            const value = rootViewInjector.get(token, (/** @type {?} */ (NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR)), flags);\n            if (value !== NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR ||\n                notFoundValue === NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR) {\n                // Return the value from the root element injector when\n                // - it provides it\n                //   (value !== NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR)\n                // - the module injector should not be checked\n                //   (notFoundValue === NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR)\n                return value;\n            }\n            return moduleInjector.get(token, notFoundValue, flags);\n        })\n    };\n}\n/**\n * Render3 implementation of {\\@link viewEngine_ComponentFactory}.\n * @template T\n */\nclass ComponentFactory$1 extends ComponentFactory {\n    /**\n     * @param {?} componentDef The component definition.\n     * @param {?=} ngModule The NgModuleRef to which the factory is bound.\n     */\n    constructor(componentDef, ngModule) {\n        super();\n        this.componentDef = componentDef;\n        this.ngModule = ngModule;\n        this.componentType = componentDef.type;\n        this.selector = stringifyCSSSelectorList(componentDef.selectors);\n        this.ngContentSelectors =\n            componentDef.ngContentSelectors ? componentDef.ngContentSelectors : [];\n        this.isBoundToModule = !!ngModule;\n    }\n    /**\n     * @return {?}\n     */\n    get inputs() {\n        return toRefArray(this.componentDef.inputs);\n    }\n    /**\n     * @return {?}\n     */\n    get outputs() {\n        return toRefArray(this.componentDef.outputs);\n    }\n    /**\n     * @param {?} injector\n     * @param {?=} projectableNodes\n     * @param {?=} rootSelectorOrNode\n     * @param {?=} ngModule\n     * @return {?}\n     */\n    create(injector, projectableNodes, rootSelectorOrNode, ngModule) {\n        ngModule = ngModule || this.ngModule;\n        /** @type {?} */\n        const rootViewInjector = ngModule ? createChainedInjector(injector, ngModule.injector) : injector;\n        /** @type {?} */\n        const rendererFactory = (/** @type {?} */ (rootViewInjector.get(RendererFactory2, domRendererFactory3)));\n        /** @type {?} */\n        const sanitizer = rootViewInjector.get(Sanitizer, null);\n        /** @type {?} */\n        const hostRenderer = rendererFactory.createRenderer(null, this.componentDef);\n        // Determine a tag name used for creating host elements when this component is created\n        // dynamically. Default to 'div' if this component did not specify any tag name in its selector.\n        /** @type {?} */\n        const elementName = (/** @type {?} */ (this.componentDef.selectors[0][0])) || 'div';\n        /** @type {?} */\n        const hostRNode = rootSelectorOrNode ?\n            locateHostElement(hostRenderer, rootSelectorOrNode, this.componentDef.encapsulation) :\n            elementCreate(elementName, rendererFactory.createRenderer(null, this.componentDef), getNamespace$1(elementName));\n        /** @type {?} */\n        const rootFlags = this.componentDef.onPush ? 64 /* Dirty */ | 512 /* IsRoot */ :\n            16 /* CheckAlways */ | 512 /* IsRoot */;\n        // Check whether this Component needs to be isolated from other components, i.e. whether it\n        // should be placed into its own (empty) root context or existing root context should be used.\n        // Note: this is internal-only convention and might change in the future, so it should not be\n        // relied upon externally.\n        /** @type {?} */\n        const isIsolated = typeof rootSelectorOrNode === 'string' &&\n            /^#root-ng-internal-isolated-\\d+/.test(rootSelectorOrNode);\n        /** @type {?} */\n        const rootContext = createRootContext();\n        // Create the root view. Uses empty TView and ContentTemplate.\n        /** @type {?} */\n        const rootTView = createTView(0 /* Root */, -1, null, 1, 0, null, null, null, null, null);\n        /** @type {?} */\n        const rootLView = createLView(null, rootTView, rootContext, rootFlags, null, null, rendererFactory, hostRenderer, sanitizer, rootViewInjector);\n        // rootView is the parent when bootstrapping\n        // TODO(misko): it looks like we are entering view here but we don't really need to as\n        // `renderView` does that. However as the code is written it is needed because\n        // `createRootComponentView` and `createRootComponent` both read global state. Fixing those\n        // issues would allow us to drop this.\n        enterView(rootLView, null);\n        /** @type {?} */\n        let component;\n        /** @type {?} */\n        let tElementNode;\n        try {\n            /** @type {?} */\n            const componentView = createRootComponentView(hostRNode, this.componentDef, rootLView, rendererFactory, hostRenderer);\n            if (hostRNode) {\n                if (rootSelectorOrNode) {\n                    setUpAttributes(hostRenderer, hostRNode, ['ng-version', VERSION.full]);\n                }\n                else {\n                    // If host element is created as a part of this function call (i.e. `rootSelectorOrNode`\n                    // is not defined), also apply attributes and classes extracted from component selector.\n                    // Extract attributes and classes from the first selector only to match VE behavior.\n                    const { attrs, classes } = extractAttrsAndClassesFromSelector(this.componentDef.selectors[0]);\n                    if (attrs) {\n                        setUpAttributes(hostRenderer, hostRNode, attrs);\n                    }\n                    if (classes && classes.length > 0) {\n                        writeDirectClass(hostRenderer, hostRNode, classes.join(' '));\n                    }\n                }\n            }\n            tElementNode = (/** @type {?} */ (getTNode(rootTView, 0)));\n            if (projectableNodes !== undefined) {\n                /** @type {?} */\n                const projection = tElementNode.projection = [];\n                for (let i = 0; i < this.ngContentSelectors.length; i++) {\n                    /** @type {?} */\n                    const nodesforSlot = projectableNodes[i];\n                    // Projectable nodes can be passed as array of arrays or an array of iterables (ngUpgrade\n                    // case). Here we do normalize passed data structure to be an array of arrays to avoid\n                    // complex checks down the line.\n                    // We also normalize the length of the passed in projectable nodes (to match the number of\n                    // <ng-container> slots defined by a component).\n                    projection.push(nodesforSlot != null ? Array.from(nodesforSlot) : null);\n                }\n            }\n            // TODO: should LifecycleHooksFeature and other host features be generated by the compiler and\n            // executed here?\n            // Angular 5 reference: https://stackblitz.com/edit/lifecycle-hooks-vcref\n            component = createRootComponent(componentView, this.componentDef, rootLView, rootContext, [LifecycleHooksFeature]);\n            renderView(rootTView, rootLView, null);\n        }\n        finally {\n            leaveView();\n        }\n        /** @type {?} */\n        const componentRef = new ComponentRef$1(this.componentType, component, createElementRef(ElementRef, tElementNode, rootLView), rootLView, tElementNode);\n        if (!rootSelectorOrNode || isIsolated) {\n            // The host element of the internal or isolated root view is attached to the component's host\n            // view node.\n            ngDevMode && assertNodeOfPossibleTypes(rootTView.node, 2 /* View */);\n            (/** @type {?} */ (rootTView.node)).child = tElementNode;\n        }\n        return componentRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    ComponentFactory$1.prototype.selector;\n    /** @type {?} */\n    ComponentFactory$1.prototype.componentType;\n    /** @type {?} */\n    ComponentFactory$1.prototype.ngContentSelectors;\n    /** @type {?} */\n    ComponentFactory$1.prototype.isBoundToModule;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentFactory$1.prototype.componentDef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentFactory$1.prototype.ngModule;\n}\n/** @type {?} */\nconst componentFactoryResolver = new ComponentFactoryResolver$1();\n/**\n * Creates a ComponentFactoryResolver and stores it on the injector. Or, if the\n * ComponentFactoryResolver\n * already exists, retrieves the existing ComponentFactoryResolver.\n *\n * @return {?} The ComponentFactoryResolver instance to use\n */\nfunction injectComponentFactoryResolver() {\n    return componentFactoryResolver;\n}\n/**\n * Represents an instance of a Component created via a {\\@link ComponentFactory}.\n *\n * `ComponentRef` provides access to the Component Instance as well other objects related to this\n * Component Instance and allows you to destroy the Component Instance via the {\\@link #destroy}\n * method.\n *\n * @template T\n */\nclass ComponentRef$1 extends ComponentRef {\n    /**\n     * @param {?} componentType\n     * @param {?} instance\n     * @param {?} location\n     * @param {?} _rootLView\n     * @param {?} _tNode\n     */\n    constructor(componentType, instance, location, _rootLView, _tNode) {\n        super();\n        this.location = location;\n        this._rootLView = _rootLView;\n        this._tNode = _tNode;\n        this.destroyCbs = [];\n        this.instance = instance;\n        this.hostView = this.changeDetectorRef = new RootViewRef(_rootLView);\n        assignTViewNodeToLView(_rootLView[TVIEW], null, -1, _rootLView);\n        this.componentType = componentType;\n    }\n    /**\n     * @return {?}\n     */\n    get injector() {\n        return new NodeInjector(this._tNode, this._rootLView);\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (this.destroyCbs) {\n            this.destroyCbs.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this.destroyCbs = null;\n            !this.hostView.destroyed && this.hostView.destroy();\n        }\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    onDestroy(callback) {\n        if (this.destroyCbs) {\n            this.destroyCbs.push(callback);\n        }\n    }\n}\nif (false) {\n    /** @type {?} */\n    ComponentRef$1.prototype.destroyCbs;\n    /** @type {?} */\n    ComponentRef$1.prototype.instance;\n    /** @type {?} */\n    ComponentRef$1.prototype.hostView;\n    /** @type {?} */\n    ComponentRef$1.prototype.changeDetectorRef;\n    /** @type {?} */\n    ComponentRef$1.prototype.componentType;\n    /** @type {?} */\n    ComponentRef$1.prototype.location;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentRef$1.prototype._rootLView;\n    /**\n     * @type {?}\n     * @private\n     */\n    ComponentRef$1.prototype._tNode;\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * NOTE: changes to the `ngI18nClosureMode` name must be synced with `compiler-cli/src/tooling.ts`.\n */\nif (typeof ngI18nClosureMode === 'undefined') {\n    // These property accesses can be ignored because ngI18nClosureMode will be set to false\n    // when optimizing code and the whole if statement will be dropped.\n    // Make sure to refer to ngI18nClosureMode as ['ngI18nClosureMode'] for closure.\n    // NOTE: we need to have it in IIFE so that the tree-shaker is happy.\n    (function () {\n        // tslint:disable-next-line:no-toplevel-property-access\n        _global['ngI18nClosureMode'] =\n            // TODO(FW-1250): validate that this actually, you know, works.\n            // tslint:disable-next-line:no-toplevel-property-access\n            typeof goog !== 'undefined' && typeof goog.getMsg === 'function';\n    })();\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/i18n/locale_en.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// THIS CODE IS GENERATED - DO NOT MODIFY\n// See angular/tools/gulp-tasks/cldr/extract.js\n/** @type {?} */\nconst u = undefined;\n/**\n * @param {?} n\n * @return {?}\n */\nfunction plural(n) {\n    /** @type {?} */\n    let i = Math.floor(Math.abs(n));\n    /** @type {?} */\n    let v = n.toString().replace(/^[^.]*\\.?/, '').length;\n    if (i === 1 && v === 0)\n        return 1;\n    return 5;\n}\nvar localeEn = [\n    'en',\n    [['a', 'p'], ['AM', 'PM'], u],\n    [['AM', 'PM'], u, u],\n    [\n        ['S', 'M', 'T', 'W', 'T', 'F', 'S'], ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],\n        ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],\n        ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa']\n    ],\n    u,\n    [\n        ['J', 'F', 'M', 'A', 'M', 'J', 'J', 'A', 'S', 'O', 'N', 'D'],\n        ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],\n        [\n            'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September',\n            'October', 'November', 'December'\n        ]\n    ],\n    u,\n    [['B', 'A'], ['BC', 'AD'], ['Before Christ', 'Anno Domini']],\n    0,\n    [6, 0],\n    ['M/d/yy', 'MMM d, y', 'MMMM d, y', 'EEEE, MMMM d, y'],\n    ['h:mm a', 'h:mm:ss a', 'h:mm:ss a z', 'h:mm:ss a zzzz'],\n    ['{1}, {0}', u, '{1} \\'at\\' {0}', u],\n    ['.', ',', ';', '%', '+', '-', 'E', '×', '‰', '∞', 'NaN', ':'],\n    ['#,##0.###', '#,##0%', '¤#,##0.00', '#E0'],\n    'USD',\n    '$',\n    'US Dollar',\n    {},\n    'ltr',\n    plural\n];\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/i18n/locale_data_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This const is used to store the locale data registered with `registerLocaleData`\n * @type {?}\n */\nlet LOCALE_DATA = {};\n/**\n * Register locale data to be used internally by Angular. See the\n * [\"I18n guide\"](guide/i18n#i18n-pipes) to know how to import additional locale data.\n *\n * The signature `registerLocaleData(data: any, extraData?: any)` is deprecated since v5.1\n * @param {?} data\n * @param {?=} localeId\n * @param {?=} extraData\n * @return {?}\n */\nfunction registerLocaleData(data, localeId, extraData) {\n    if (typeof localeId !== 'string') {\n        extraData = localeId;\n        localeId = data[LocaleDataIndex.LocaleId];\n    }\n    localeId = localeId.toLowerCase().replace(/_/g, '-');\n    LOCALE_DATA[localeId] = data;\n    if (extraData) {\n        LOCALE_DATA[localeId][LocaleDataIndex.ExtraData] = extraData;\n    }\n}\n/**\n * Finds the locale data for a given locale.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * @param {?} locale The locale code.\n * @return {?} The locale data.\n */\nfunction findLocaleData(locale) {\n    /** @type {?} */\n    const normalizedLocale = normalizeLocale(locale);\n    /** @type {?} */\n    let match = getLocaleData(normalizedLocale);\n    if (match) {\n        return match;\n    }\n    // let's try to find a parent locale\n    /** @type {?} */\n    const parentLocale = normalizedLocale.split('-')[0];\n    match = getLocaleData(parentLocale);\n    if (match) {\n        return match;\n    }\n    if (parentLocale === 'en') {\n        return localeEn;\n    }\n    throw new Error(`Missing locale data for the locale \"${locale}\".`);\n}\n/**\n * Retrieves the default currency code for the given locale.\n *\n * The default is defined as the first currency which is still in use.\n *\n * @param {?} locale The code of the locale whose currency code we want.\n * @return {?} The code of the default currency for the given locale.\n *\n */\nfunction getLocaleCurrencyCode(locale) {\n    /** @type {?} */\n    const data = findLocaleData(locale);\n    return data[LocaleDataIndex.CurrencyCode] || null;\n}\n/**\n * Retrieves the plural function used by ICU expressions to determine the plural case to use\n * for a given locale.\n * @see `NgPlural` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} The plural function for the locale.\n */\nfunction getLocalePluralCase(locale) {\n    /** @type {?} */\n    const data = findLocaleData(locale);\n    return data[LocaleDataIndex.PluralCase];\n}\n/**\n * Helper function to get the given `normalizedLocale` from `LOCALE_DATA`\n * or from the global `ng.common.locale`.\n * @param {?} normalizedLocale\n * @return {?}\n */\nfunction getLocaleData(normalizedLocale) {\n    if (!(normalizedLocale in LOCALE_DATA)) {\n        LOCALE_DATA[normalizedLocale] = _global.ng && _global.ng.common && _global.ng.common.locales &&\n            _global.ng.common.locales[normalizedLocale];\n    }\n    return LOCALE_DATA[normalizedLocale];\n}\n/**\n * Helper function to remove all the locale data from `LOCALE_DATA`.\n * @return {?}\n */\nfunction unregisterAllLocaleData() {\n    LOCALE_DATA = {};\n}\n/** @enum {number} */\nconst LocaleDataIndex = {\n    LocaleId: 0,\n    DayPeriodsFormat: 1,\n    DayPeriodsStandalone: 2,\n    DaysFormat: 3,\n    DaysStandalone: 4,\n    MonthsFormat: 5,\n    MonthsStandalone: 6,\n    Eras: 7,\n    FirstDayOfWeek: 8,\n    WeekendRange: 9,\n    DateFormat: 10,\n    TimeFormat: 11,\n    DateTimeFormat: 12,\n    NumberSymbols: 13,\n    NumberFormats: 14,\n    CurrencyCode: 15,\n    CurrencySymbol: 16,\n    CurrencyName: 17,\n    Currencies: 18,\n    Directionality: 19,\n    PluralCase: 20,\n    ExtraData: 21,\n};\nLocaleDataIndex[LocaleDataIndex.LocaleId] = 'LocaleId';\nLocaleDataIndex[LocaleDataIndex.DayPeriodsFormat] = 'DayPeriodsFormat';\nLocaleDataIndex[LocaleDataIndex.DayPeriodsStandalone] = 'DayPeriodsStandalone';\nLocaleDataIndex[LocaleDataIndex.DaysFormat] = 'DaysFormat';\nLocaleDataIndex[LocaleDataIndex.DaysStandalone] = 'DaysStandalone';\nLocaleDataIndex[LocaleDataIndex.MonthsFormat] = 'MonthsFormat';\nLocaleDataIndex[LocaleDataIndex.MonthsStandalone] = 'MonthsStandalone';\nLocaleDataIndex[LocaleDataIndex.Eras] = 'Eras';\nLocaleDataIndex[LocaleDataIndex.FirstDayOfWeek] = 'FirstDayOfWeek';\nLocaleDataIndex[LocaleDataIndex.WeekendRange] = 'WeekendRange';\nLocaleDataIndex[LocaleDataIndex.DateFormat] = 'DateFormat';\nLocaleDataIndex[LocaleDataIndex.TimeFormat] = 'TimeFormat';\nLocaleDataIndex[LocaleDataIndex.DateTimeFormat] = 'DateTimeFormat';\nLocaleDataIndex[LocaleDataIndex.NumberSymbols] = 'NumberSymbols';\nLocaleDataIndex[LocaleDataIndex.NumberFormats] = 'NumberFormats';\nLocaleDataIndex[LocaleDataIndex.CurrencyCode] = 'CurrencyCode';\nLocaleDataIndex[LocaleDataIndex.CurrencySymbol] = 'CurrencySymbol';\nLocaleDataIndex[LocaleDataIndex.CurrencyName] = 'CurrencyName';\nLocaleDataIndex[LocaleDataIndex.Currencies] = 'Currencies';\nLocaleDataIndex[LocaleDataIndex.Directionality] = 'Directionality';\nLocaleDataIndex[LocaleDataIndex.PluralCase] = 'PluralCase';\nLocaleDataIndex[LocaleDataIndex.ExtraData] = 'ExtraData';\n/** @enum {number} */\nconst ExtraLocaleDataIndex = {\n    ExtraDayPeriodFormats: 0,\n    ExtraDayPeriodStandalone: 1,\n    ExtraDayPeriodsRules: 2,\n};\n/** @enum {number} */\nconst CurrencyIndex = {\n    Symbol: 0,\n    SymbolNarrow: 1,\n    NbOfDigits: 2,\n};\n/**\n * Returns the canonical form of a locale name - lowercase with `_` replaced with `-`.\n * @param {?} locale\n * @return {?}\n */\nfunction normalizeLocale(locale) {\n    return locale.toLowerCase().replace(/_/g, '-');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/i18n/localization.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst pluralMapping = ['zero', 'one', 'two', 'few', 'many'];\n/**\n * Returns the plural case based on the locale\n * @param {?} value\n * @param {?} locale\n * @return {?}\n */\nfunction getPluralCase(value, locale) {\n    /** @type {?} */\n    const plural = getLocalePluralCase(locale)(parseInt(value, 10));\n    /** @type {?} */\n    const result = pluralMapping[plural];\n    return (result !== undefined) ? result : 'other';\n}\n/**\n * The locale id that the application is using by default (for translations and ICU expressions).\n * @type {?}\n */\nconst DEFAULT_LOCALE_ID = 'en-US';\n/**\n * USD currency code that the application uses by default for CurrencyPipe when no\n * DEFAULT_CURRENCY_CODE is provided.\n * @type {?}\n */\nconst USD_CURRENCY_CODE = 'USD';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/i18n.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst MARKER = `�`;\n/** @type {?} */\nconst ICU_BLOCK_REGEXP = /^\\s*(�\\d+:?\\d*�)\\s*,\\s*(select|plural)\\s*,/;\n/** @type {?} */\nconst SUBTEMPLATE_REGEXP = /�\\/?\\*(\\d+:\\d+)�/gi;\n/** @type {?} */\nconst PH_REGEXP = /�(\\/?[#*!]\\d+):?\\d*�/gi;\n/** @type {?} */\nconst BINDING_REGEXP = /�(\\d+):?\\d*�/gi;\n/** @type {?} */\nconst ICU_REGEXP = /({\\s*�\\d+:?\\d*�\\s*,\\s*\\S{6}\\s*,[\\s\\S]*})/gi;\n/** @enum {string} */\nconst TagType = {\n    ELEMENT: \"#\",\n    TEMPLATE: \"*\",\n    PROJECTION: \"!\",\n};\n// i18nPostprocess consts\n/** @type {?} */\nconst ROOT_TEMPLATE_ID = 0;\n/** @type {?} */\nconst PP_MULTI_VALUE_PLACEHOLDERS_REGEXP = /\\[(�.+?�?)\\]/;\n/** @type {?} */\nconst PP_PLACEHOLDERS_REGEXP = /\\[(�.+?�?)\\]|(�\\/?\\*\\d+:\\d+�)/g;\n/** @type {?} */\nconst PP_ICU_VARS_REGEXP = /({\\s*)(VAR_(PLURAL|SELECT)(_\\d+)?)(\\s*,)/g;\n/** @type {?} */\nconst PP_ICU_PLACEHOLDERS_REGEXP = /{([A-Z0-9_]+)}/g;\n/** @type {?} */\nconst PP_ICUS_REGEXP = /�I18N_EXP_(ICU(_\\d+)?)�/g;\n/** @type {?} */\nconst PP_CLOSE_TEMPLATE_REGEXP = /\\/\\*/;\n/** @type {?} */\nconst PP_TEMPLATE_ID_REGEXP = /\\d+\\:(\\d+)/;\n/**\n * @record\n */\nfunction IcuExpression() { }\nif (false) {\n    /** @type {?} */\n    IcuExpression.prototype.type;\n    /** @type {?} */\n    IcuExpression.prototype.mainBinding;\n    /** @type {?} */\n    IcuExpression.prototype.cases;\n    /** @type {?} */\n    IcuExpression.prototype.values;\n}\n/**\n * @record\n */\nfunction IcuCase() { }\nif (false) {\n    /**\n     * Number of slots to allocate in expando for this case.\n     *\n     * This is the max number of DOM elements which will be created by this i18n + ICU blocks. When\n     * the DOM elements are being created they are stored in the EXPANDO, so that update OpCodes can\n     * write into them.\n     * @type {?}\n     */\n    IcuCase.prototype.vars;\n    /**\n     * An optional array of child/sub ICUs.\n     * @type {?}\n     */\n    IcuCase.prototype.childIcus;\n    /**\n     * A set of OpCodes to apply in order to build up the DOM render tree for the ICU\n     * @type {?}\n     */\n    IcuCase.prototype.create;\n    /**\n     * A set of OpCodes to apply in order to destroy the DOM render tree for the ICU.\n     * @type {?}\n     */\n    IcuCase.prototype.remove;\n    /**\n     * A set of OpCodes to apply in order to update the DOM render tree for the ICU bindings.\n     * @type {?}\n     */\n    IcuCase.prototype.update;\n}\n/**\n * Breaks pattern into strings and top level {...} blocks.\n * Can be used to break a message into text and ICU expressions, or to break an ICU expression into\n * keys and cases.\n * Original code from closure library, modified for Angular.\n *\n * @param {?} pattern (sub)Pattern to be broken.\n *\n * @return {?}\n */\nfunction extractParts(pattern) {\n    if (!pattern) {\n        return [];\n    }\n    /** @type {?} */\n    let prevPos = 0;\n    /** @type {?} */\n    const braceStack = [];\n    /** @type {?} */\n    const results = [];\n    /** @type {?} */\n    const braces = /[{}]/g;\n    // lastIndex doesn't get set to 0 so we have to.\n    braces.lastIndex = 0;\n    /** @type {?} */\n    let match;\n    while (match = braces.exec(pattern)) {\n        /** @type {?} */\n        const pos = match.index;\n        if (match[0] == '}') {\n            braceStack.pop();\n            if (braceStack.length == 0) {\n                // End of the block.\n                /** @type {?} */\n                const block = pattern.substring(prevPos, pos);\n                if (ICU_BLOCK_REGEXP.test(block)) {\n                    results.push(parseICUBlock(block));\n                }\n                else {\n                    results.push(block);\n                }\n                prevPos = pos + 1;\n            }\n        }\n        else {\n            if (braceStack.length == 0) {\n                /** @type {?} */\n                const substring = pattern.substring(prevPos, pos);\n                results.push(substring);\n                prevPos = pos + 1;\n            }\n            braceStack.push('{');\n        }\n    }\n    /** @type {?} */\n    const substring = pattern.substring(prevPos);\n    results.push(substring);\n    return results;\n}\n/**\n * Parses text containing an ICU expression and produces a JSON object for it.\n * Original code from closure library, modified for Angular.\n *\n * @param {?} pattern Text containing an ICU expression that needs to be parsed.\n *\n * @return {?}\n */\nfunction parseICUBlock(pattern) {\n    /** @type {?} */\n    const cases = [];\n    /** @type {?} */\n    const values = [];\n    /** @type {?} */\n    let icuType = 1 /* plural */;\n    /** @type {?} */\n    let mainBinding = 0;\n    pattern = pattern.replace(ICU_BLOCK_REGEXP, (/**\n     * @param {?} str\n     * @param {?} binding\n     * @param {?} type\n     * @return {?}\n     */\n    function (str, binding, type) {\n        if (type === 'select') {\n            icuType = 0 /* select */;\n        }\n        else {\n            icuType = 1 /* plural */;\n        }\n        mainBinding = parseInt(binding.substr(1), 10);\n        return '';\n    }));\n    /** @type {?} */\n    const parts = (/** @type {?} */ (extractParts(pattern)));\n    // Looking for (key block)+ sequence. One of the keys has to be \"other\".\n    for (let pos = 0; pos < parts.length;) {\n        /** @type {?} */\n        let key = parts[pos++].trim();\n        if (icuType === 1 /* plural */) {\n            // Key can be \"=x\", we just want \"x\"\n            key = key.replace(/\\s*(?:=)?(\\w+)\\s*/, '$1');\n        }\n        if (key.length) {\n            cases.push(key);\n        }\n        /** @type {?} */\n        const blocks = (/** @type {?} */ (extractParts(parts[pos++])));\n        if (cases.length > values.length) {\n            values.push(blocks);\n        }\n    }\n    // TODO(ocombe): support ICU expressions in attributes, see #21615\n    return { type: icuType, mainBinding: mainBinding, cases, values };\n}\n/**\n * Removes everything inside the sub-templates of a message.\n * @param {?} message\n * @return {?}\n */\nfunction removeInnerTemplateTranslation(message) {\n    /** @type {?} */\n    let match;\n    /** @type {?} */\n    let res = '';\n    /** @type {?} */\n    let index = 0;\n    /** @type {?} */\n    let inTemplate = false;\n    /** @type {?} */\n    let tagMatched;\n    while ((match = SUBTEMPLATE_REGEXP.exec(message)) !== null) {\n        if (!inTemplate) {\n            res += message.substring(index, match.index + match[0].length);\n            tagMatched = match[1];\n            inTemplate = true;\n        }\n        else {\n            if (match[0] === `${MARKER}/*${tagMatched}${MARKER}`) {\n                index = match.index;\n                inTemplate = false;\n            }\n        }\n    }\n    ngDevMode &&\n        assertEqual(inTemplate, false, `Tag mismatch: unable to find the end of the sub-template in the translation \"${message}\"`);\n    res += message.substr(index);\n    return res;\n}\n/**\n * Extracts a part of a message and removes the rest.\n *\n * This method is used for extracting a part of the message associated with a template. A translated\n * message can span multiple templates.\n *\n * Example:\n * ```\n * <div i18n>Translate <span *ngIf>me</span>!</div>\n * ```\n *\n * @param {?} message The message to crop\n * @param {?=} subTemplateIndex Index of the sub-template to extract. If undefined it returns the\n * external template and removes all sub-templates.\n * @return {?}\n */\nfunction getTranslationForTemplate(message, subTemplateIndex) {\n    if (isRootTemplateMessage(subTemplateIndex)) {\n        // We want the root template message, ignore all sub-templates\n        return removeInnerTemplateTranslation(message);\n    }\n    else {\n        // We want a specific sub-template\n        /** @type {?} */\n        const start = message.indexOf(`:${subTemplateIndex}${MARKER}`) + 2 + subTemplateIndex.toString().length;\n        /** @type {?} */\n        const end = message.search(new RegExp(`${MARKER}\\\\/\\\\*\\\\d+:${subTemplateIndex}${MARKER}`));\n        return removeInnerTemplateTranslation(message.substring(start, end));\n    }\n}\n/**\n * Generate the OpCodes to update the bindings of a string.\n *\n * @param {?} str The string containing the bindings.\n * @param {?} destinationNode Index of the destination node which will receive the binding.\n * @param {?=} attrName Name of the attribute, if the string belongs to an attribute.\n * @param {?=} sanitizeFn Sanitization function used to sanitize the string after update, if necessary.\n * @return {?}\n */\nfunction generateBindingUpdateOpCodes(str, destinationNode, attrName, sanitizeFn = null) {\n    /** @type {?} */\n    const updateOpCodes = [null, null];\n    // Alloc space for mask and size\n    /** @type {?} */\n    const textParts = str.split(BINDING_REGEXP);\n    /** @type {?} */\n    let mask = 0;\n    for (let j = 0; j < textParts.length; j++) {\n        /** @type {?} */\n        const textValue = textParts[j];\n        if (j & 1) {\n            // Odd indexes are bindings\n            /** @type {?} */\n            const bindingIndex = parseInt(textValue, 10);\n            updateOpCodes.push(-1 - bindingIndex);\n            mask = mask | toMaskBit(bindingIndex);\n        }\n        else if (textValue !== '') {\n            // Even indexes are text\n            updateOpCodes.push(textValue);\n        }\n    }\n    updateOpCodes.push(destinationNode << 2 /* SHIFT_REF */ |\n        (attrName ? 1 /* Attr */ : 0 /* Text */));\n    if (attrName) {\n        updateOpCodes.push(attrName, sanitizeFn);\n    }\n    updateOpCodes[0] = mask;\n    updateOpCodes[1] = updateOpCodes.length - 2;\n    return updateOpCodes;\n}\n/**\n * @param {?} icuExpression\n * @param {?=} mask\n * @return {?}\n */\nfunction getBindingMask(icuExpression, mask = 0) {\n    mask = mask | toMaskBit(icuExpression.mainBinding);\n    /** @type {?} */\n    let match;\n    for (let i = 0; i < icuExpression.values.length; i++) {\n        /** @type {?} */\n        const valueArr = icuExpression.values[i];\n        for (let j = 0; j < valueArr.length; j++) {\n            /** @type {?} */\n            const value = valueArr[j];\n            if (typeof value === 'string') {\n                while (match = BINDING_REGEXP.exec(value)) {\n                    mask = mask | toMaskBit(parseInt(match[1], 10));\n                }\n            }\n            else {\n                mask = getBindingMask((/** @type {?} */ (value)), mask);\n            }\n        }\n    }\n    return mask;\n}\n/** @type {?} */\nconst i18nIndexStack = [];\n/** @type {?} */\nlet i18nIndexStackPointer = -1;\n/**\n * Convert binding index to mask bit.\n *\n * Each index represents a single bit on the bit-mask. Because bit-mask only has 32 bits, we make\n * the 32nd bit share all masks for all bindings higher than 32. Since it is extremely rare to have\n * more than 32 bindings this will be hit very rarely. The downside of hitting this corner case is\n * that we will execute binding code more often than necessary. (penalty of performance)\n * @param {?} bindingIndex\n * @return {?}\n */\nfunction toMaskBit(bindingIndex) {\n    return 1 << Math.min(bindingIndex, 31);\n}\n/** @type {?} */\nconst parentIndexStack = [];\n/**\n * Marks a block of text as translatable.\n *\n * The instructions `i18nStart` and `i18nEnd` mark the translation block in the template.\n * The translation `message` is the value which is locale specific. The translation string may\n * contain placeholders which associate inner elements and sub-templates within the translation.\n *\n * The translation `message` placeholders are:\n * - `�{index}(:{block})�`: *Binding Placeholder*: Marks a location where an expression will be\n *   interpolated into. The placeholder `index` points to the expression binding index. An optional\n *   `block` that matches the sub-template in which it was declared.\n * - `�#{index}(:{block})�`/`�/#{index}(:{block})�`: *Element Placeholder*:  Marks the beginning\n *   and end of DOM element that were embedded in the original translation block. The placeholder\n *   `index` points to the element index in the template instructions set. An optional `block` that\n *   matches the sub-template in which it was declared.\n * - `�!{index}(:{block})�`/`�/!{index}(:{block})�`: *Projection Placeholder*:  Marks the\n *   beginning and end of <ng-content> that was embedded in the original translation block.\n *   The placeholder `index` points to the element index in the template instructions set.\n *   An optional `block` that matches the sub-template in which it was declared.\n * - `�*{index}:{block}�`/`�/*{index}:{block}�`: *Sub-template Placeholder*: Sub-templates must be\n *   split up and translated separately in each angular template function. The `index` points to the\n *   `template` instruction index. A `block` that matches the sub-template in which it was declared.\n *\n * \\@codeGenApi\n * @param {?} index A unique index of the translation in the static block.\n * @param {?} message The translation message.\n * @param {?=} subTemplateIndex Optional sub-template index in the `message`.\n *\n * @return {?}\n */\nfunction ɵɵi18nStart(index, message, subTemplateIndex) {\n    /** @type {?} */\n    const tView = getTView();\n    ngDevMode && assertDefined(tView, `tView should be defined`);\n    i18nIndexStack[++i18nIndexStackPointer] = index;\n    // We need to delay projections until `i18nEnd`\n    setDelayProjection(true);\n    if (tView.firstCreatePass && tView.data[index + HEADER_OFFSET] === null) {\n        i18nStartFirstPass(getLView(), tView, index, message, subTemplateIndex);\n    }\n}\n// Count for the number of vars that will be allocated for each i18n block.\n// It is global because this is used in multiple functions that include loops and recursive calls.\n// This is reset to 0 when `i18nStartFirstPass` is called.\n/** @type {?} */\nlet i18nVarsCount;\n/**\n * @param {?} startIndex\n * @return {?}\n */\nfunction allocNodeIndex(startIndex) {\n    return startIndex + i18nVarsCount++;\n}\n/**\n * See `i18nStart` above.\n * @param {?} lView\n * @param {?} tView\n * @param {?} index\n * @param {?} message\n * @param {?=} subTemplateIndex\n * @return {?}\n */\nfunction i18nStartFirstPass(lView, tView, index, message, subTemplateIndex) {\n    /** @type {?} */\n    const startIndex = tView.blueprint.length - HEADER_OFFSET;\n    i18nVarsCount = 0;\n    /** @type {?} */\n    const previousOrParentTNode = getPreviousOrParentTNode();\n    /** @type {?} */\n    const parentTNode = getIsParent() ? previousOrParentTNode : previousOrParentTNode && previousOrParentTNode.parent;\n    /** @type {?} */\n    let parentIndex = parentTNode && parentTNode !== lView[T_HOST] ? parentTNode.index - HEADER_OFFSET : index;\n    /** @type {?} */\n    let parentIndexPointer = 0;\n    parentIndexStack[parentIndexPointer] = parentIndex;\n    /** @type {?} */\n    const createOpCodes = [];\n    // If the previous node wasn't the direct parent then we have a translation without top level\n    // element and we need to keep a reference of the previous element if there is one. We should also\n    // keep track whether an element was a parent node or not, so that the logic that consumes\n    // the generated `I18nMutateOpCode`s can leverage this information to properly set TNode state\n    // (whether it's a parent or sibling).\n    if (index > 0 && previousOrParentTNode !== parentTNode) {\n        /** @type {?} */\n        let previousTNodeIndex = previousOrParentTNode.index - HEADER_OFFSET;\n        // If current TNode is a sibling node, encode it using a negative index. This information is\n        // required when the `Select` action is processed (see the `readCreateOpCodes` function).\n        if (!getIsParent()) {\n            previousTNodeIndex = ~previousTNodeIndex;\n        }\n        // Create an OpCode to select the previous TNode\n        createOpCodes.push(previousTNodeIndex << 3 /* SHIFT_REF */ | 0 /* Select */);\n    }\n    /** @type {?} */\n    const updateOpCodes = [];\n    /** @type {?} */\n    const icuExpressions = [];\n    if (message === '' && isRootTemplateMessage(subTemplateIndex)) {\n        // If top level translation is an empty string, do not invoke additional processing\n        // and just create op codes for empty text node instead.\n        createOpCodes.push(message, allocNodeIndex(startIndex), parentIndex << 17 /* SHIFT_PARENT */ | 1 /* AppendChild */);\n    }\n    else {\n        /** @type {?} */\n        const templateTranslation = getTranslationForTemplate(message, subTemplateIndex);\n        /** @type {?} */\n        const msgParts = replaceNgsp(templateTranslation).split(PH_REGEXP);\n        for (let i = 0; i < msgParts.length; i++) {\n            /** @type {?} */\n            let value = msgParts[i];\n            if (i & 1) {\n                // Odd indexes are placeholders (elements and sub-templates)\n                if (value.charAt(0) === '/') {\n                    // It is a closing tag\n                    if (value.charAt(1) === \"#\" /* ELEMENT */) {\n                        /** @type {?} */\n                        const phIndex = parseInt(value.substr(2), 10);\n                        parentIndex = parentIndexStack[--parentIndexPointer];\n                        createOpCodes.push(phIndex << 3 /* SHIFT_REF */ | 5 /* ElementEnd */);\n                    }\n                }\n                else {\n                    /** @type {?} */\n                    const phIndex = parseInt(value.substr(1), 10);\n                    /** @type {?} */\n                    const isElement = value.charAt(0) === \"#\" /* ELEMENT */;\n                    // The value represents a placeholder that we move to the designated index.\n                    // Note: positive indicies indicate that a TNode with a given index should also be marked\n                    // as parent while executing `Select` instruction.\n                    createOpCodes.push((isElement ? phIndex : ~phIndex) << 3 /* SHIFT_REF */ |\n                        0 /* Select */, parentIndex << 17 /* SHIFT_PARENT */ | 1 /* AppendChild */);\n                    if (isElement) {\n                        parentIndexStack[++parentIndexPointer] = parentIndex = phIndex;\n                    }\n                }\n            }\n            else {\n                // Even indexes are text (including bindings & ICU expressions)\n                /** @type {?} */\n                const parts = extractParts(value);\n                for (let j = 0; j < parts.length; j++) {\n                    if (j & 1) {\n                        // Odd indexes are ICU expressions\n                        /** @type {?} */\n                        const icuExpression = (/** @type {?} */ (parts[j]));\n                        // Verify that ICU expression has the right shape. Translations might contain invalid\n                        // constructions (while original messages were correct), so ICU parsing at runtime may\n                        // not succeed (thus `icuExpression` remains a string).\n                        if (typeof icuExpression !== 'object') {\n                            throw new Error(`Unable to parse ICU expression in \"${templateTranslation}\" message.`);\n                        }\n                        // Create the comment node that will anchor the ICU expression\n                        /** @type {?} */\n                        const icuNodeIndex = allocNodeIndex(startIndex);\n                        createOpCodes.push(COMMENT_MARKER, ngDevMode ? `ICU ${icuNodeIndex}` : '', icuNodeIndex, parentIndex << 17 /* SHIFT_PARENT */ | 1 /* AppendChild */);\n                        // Update codes for the ICU expression\n                        /** @type {?} */\n                        const mask = getBindingMask(icuExpression);\n                        icuStart(icuExpressions, icuExpression, icuNodeIndex, icuNodeIndex);\n                        // Since this is recursive, the last TIcu that was pushed is the one we want\n                        /** @type {?} */\n                        const tIcuIndex = icuExpressions.length - 1;\n                        updateOpCodes.push(toMaskBit(icuExpression.mainBinding), // mask of the main binding\n                        3, // skip 3 opCodes if not changed\n                        -1 - icuExpression.mainBinding, icuNodeIndex << 2 /* SHIFT_REF */ | 2 /* IcuSwitch */, tIcuIndex, mask, // mask of all the bindings of this ICU expression\n                        2, // skip 2 opCodes if not changed\n                        icuNodeIndex << 2 /* SHIFT_REF */ | 3 /* IcuUpdate */, tIcuIndex);\n                    }\n                    else if (parts[j] !== '') {\n                        /** @type {?} */\n                        const text = (/** @type {?} */ (parts[j]));\n                        // Even indexes are text (including bindings)\n                        /** @type {?} */\n                        const hasBinding = text.match(BINDING_REGEXP);\n                        // Create text nodes\n                        /** @type {?} */\n                        const textNodeIndex = allocNodeIndex(startIndex);\n                        createOpCodes.push(\n                        // If there is a binding, the value will be set during update\n                        hasBinding ? '' : text, textNodeIndex, parentIndex << 17 /* SHIFT_PARENT */ | 1 /* AppendChild */);\n                        if (hasBinding) {\n                            addAllToArray(generateBindingUpdateOpCodes(text, textNodeIndex), updateOpCodes);\n                        }\n                    }\n                }\n            }\n        }\n    }\n    if (i18nVarsCount > 0) {\n        allocExpando(tView, lView, i18nVarsCount);\n    }\n    ngDevMode &&\n        attachI18nOpCodesDebug(createOpCodes, updateOpCodes, icuExpressions.length ? icuExpressions : null, lView);\n    // NOTE: local var needed to properly assert the type of `TI18n`.\n    /** @type {?} */\n    const tI18n = {\n        vars: i18nVarsCount,\n        create: createOpCodes,\n        update: updateOpCodes,\n        icus: icuExpressions.length ? icuExpressions : null,\n    };\n    tView.data[index + HEADER_OFFSET] = tI18n;\n}\n/**\n * @param {?} tView\n * @param {?} tNode\n * @param {?} parentTNode\n * @param {?} previousTNode\n * @param {?} lView\n * @return {?}\n */\nfunction appendI18nNode(tView, tNode, parentTNode, previousTNode, lView) {\n    ngDevMode && ngDevMode.rendererMoveNode++;\n    /** @type {?} */\n    const nextNode = tNode.next;\n    if (!previousTNode) {\n        previousTNode = parentTNode;\n    }\n    // Re-organize node tree to put this node in the correct position.\n    if (previousTNode === parentTNode && tNode !== parentTNode.child) {\n        tNode.next = parentTNode.child;\n        parentTNode.child = tNode;\n    }\n    else if (previousTNode !== parentTNode && tNode !== previousTNode.next) {\n        tNode.next = previousTNode.next;\n        previousTNode.next = tNode;\n    }\n    else {\n        tNode.next = null;\n    }\n    if (parentTNode !== lView[T_HOST]) {\n        tNode.parent = (/** @type {?} */ (parentTNode));\n    }\n    // If tNode was moved around, we might need to fix a broken link.\n    /** @type {?} */\n    let cursor = tNode.next;\n    while (cursor) {\n        if (cursor.next === tNode) {\n            cursor.next = nextNode;\n        }\n        cursor = cursor.next;\n    }\n    // If the placeholder to append is a projection, we need to move the projected nodes instead\n    if (tNode.type === 1 /* Projection */) {\n        applyProjection(tView, lView, (/** @type {?} */ (tNode)));\n        return tNode;\n    }\n    appendChild(tView, lView, getNativeByTNode(tNode, lView), tNode);\n    /** @type {?} */\n    const slotValue = lView[tNode.index];\n    if (tNode.type !== 0 /* Container */ && isLContainer(slotValue)) {\n        // Nodes that inject ViewContainerRef also have a comment node that should be moved\n        appendChild(tView, lView, slotValue[NATIVE], tNode);\n    }\n    return tNode;\n}\n/**\n * @param {?} subTemplateIndex\n * @return {?}\n */\nfunction isRootTemplateMessage(subTemplateIndex) {\n    return subTemplateIndex === undefined;\n}\n/**\n * Handles message string post-processing for internationalization.\n *\n * Handles message string post-processing by transforming it from intermediate\n * format (that might contain some markers that we need to replace) to the final\n * form, consumable by i18nStart instruction. Post processing steps include:\n *\n * 1. Resolve all multi-value cases (like [�*1:1��#2:1�|�#4:1�|�5�])\n * 2. Replace all ICU vars (like \"VAR_PLURAL\")\n * 3. Replace all placeholders used inside ICUs in a form of {PLACEHOLDER}\n * 4. Replace all ICU references with corresponding values (like �ICU_EXP_ICU_1�)\n *    in case multiple ICUs have the same placeholder name\n *\n * \\@codeGenApi\n * @param {?} message Raw translation string for post processing\n * @param {?=} replacements Set of replacements that should be applied\n *\n * @return {?} Transformed string that can be consumed by i18nStart instruction\n *\n */\nfunction ɵɵi18nPostprocess(message, replacements = {}) {\n    /**\n     * Step 1: resolve all multi-value placeholders like [�#5�|�*1:1��#2:1�|�#4:1�]\n     *\n     * Note: due to the way we process nested templates (BFS), multi-value placeholders are typically\n     * grouped by templates, for example: [�#5�|�#6�|�#1:1�|�#3:2�] where �#5� and �#6� belong to root\n     * template, �#1:1� belong to nested template with index 1 and �#1:2� - nested template with index\n     * 3. However in real templates the order might be different: i.e. �#1:1� and/or �#3:2� may go in\n     * front of �#6�. The post processing step restores the right order by keeping track of the\n     * template id stack and looks for placeholders that belong to the currently active template.\n     * @type {?}\n     */\n    let result = message;\n    if (PP_MULTI_VALUE_PLACEHOLDERS_REGEXP.test(message)) {\n        /** @type {?} */\n        const matches = {};\n        /** @type {?} */\n        const templateIdsStack = [ROOT_TEMPLATE_ID];\n        result = result.replace(PP_PLACEHOLDERS_REGEXP, (/**\n         * @param {?} m\n         * @param {?} phs\n         * @param {?} tmpl\n         * @return {?}\n         */\n        (m, phs, tmpl) => {\n            /** @type {?} */\n            const content = phs || tmpl;\n            /** @type {?} */\n            const placeholders = matches[content] || [];\n            if (!placeholders.length) {\n                content.split('|').forEach((/**\n                 * @param {?} placeholder\n                 * @return {?}\n                 */\n                (placeholder) => {\n                    /** @type {?} */\n                    const match = placeholder.match(PP_TEMPLATE_ID_REGEXP);\n                    /** @type {?} */\n                    const templateId = match ? parseInt(match[1], 10) : ROOT_TEMPLATE_ID;\n                    /** @type {?} */\n                    const isCloseTemplateTag = PP_CLOSE_TEMPLATE_REGEXP.test(placeholder);\n                    placeholders.push([templateId, isCloseTemplateTag, placeholder]);\n                }));\n                matches[content] = placeholders;\n            }\n            if (!placeholders.length) {\n                throw new Error(`i18n postprocess: unmatched placeholder - ${content}`);\n            }\n            /** @type {?} */\n            const currentTemplateId = templateIdsStack[templateIdsStack.length - 1];\n            /** @type {?} */\n            let idx = 0;\n            // find placeholder index that matches current template id\n            for (let i = 0; i < placeholders.length; i++) {\n                if (placeholders[i][0] === currentTemplateId) {\n                    idx = i;\n                    break;\n                }\n            }\n            // update template id stack based on the current tag extracted\n            const [templateId, isCloseTemplateTag, placeholder] = placeholders[idx];\n            if (isCloseTemplateTag) {\n                templateIdsStack.pop();\n            }\n            else if (currentTemplateId !== templateId) {\n                templateIdsStack.push(templateId);\n            }\n            // remove processed tag from the list\n            placeholders.splice(idx, 1);\n            return placeholder;\n        }));\n    }\n    // return current result if no replacements specified\n    if (!Object.keys(replacements).length) {\n        return result;\n    }\n    /**\n     * Step 2: replace all ICU vars (like \"VAR_PLURAL\")\n     */\n    result = result.replace(PP_ICU_VARS_REGEXP, (/**\n     * @param {?} match\n     * @param {?} start\n     * @param {?} key\n     * @param {?} _type\n     * @param {?} _idx\n     * @param {?} end\n     * @return {?}\n     */\n    (match, start, key, _type, _idx, end) => {\n        return replacements.hasOwnProperty(key) ? `${start}${replacements[key]}${end}` : match;\n    }));\n    /**\n     * Step 3: replace all placeholders used inside ICUs in a form of {PLACEHOLDER}\n     */\n    result = result.replace(PP_ICU_PLACEHOLDERS_REGEXP, (/**\n     * @param {?} match\n     * @param {?} key\n     * @return {?}\n     */\n    (match, key) => {\n        return replacements.hasOwnProperty(key) ? (/** @type {?} */ (replacements[key])) : match;\n    }));\n    /**\n     * Step 4: replace all ICU references with corresponding values (like �ICU_EXP_ICU_1�) in case\n     * multiple ICUs have the same placeholder name\n     */\n    result = result.replace(PP_ICUS_REGEXP, (/**\n     * @param {?} match\n     * @param {?} key\n     * @return {?}\n     */\n    (match, key) => {\n        if (replacements.hasOwnProperty(key)) {\n            /** @type {?} */\n            const list = (/** @type {?} */ (replacements[key]));\n            if (!list.length) {\n                throw new Error(`i18n postprocess: unmatched ICU - ${match} with key: ${key}`);\n            }\n            return (/** @type {?} */ (list.shift()));\n        }\n        return match;\n    }));\n    return result;\n}\n/**\n * Translates a translation block marked by `i18nStart` and `i18nEnd`. It inserts the text/ICU nodes\n * into the render tree, moves the placeholder nodes and removes the deleted nodes.\n *\n * \\@codeGenApi\n * @return {?}\n */\nfunction ɵɵi18nEnd() {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    ngDevMode && assertDefined(tView, `tView should be defined`);\n    i18nEndFirstPass(tView, lView);\n    // Stop delaying projections\n    setDelayProjection(false);\n}\n/**\n * See `i18nEnd` above.\n * @param {?} tView\n * @param {?} lView\n * @return {?}\n */\nfunction i18nEndFirstPass(tView, lView) {\n    ngDevMode &&\n        assertEqual(getBindingIndex(), tView.bindingStartIndex, 'i18nEnd should be called before any binding');\n    /** @type {?} */\n    const rootIndex = i18nIndexStack[i18nIndexStackPointer--];\n    /** @type {?} */\n    const tI18n = (/** @type {?} */ (tView.data[rootIndex + HEADER_OFFSET]));\n    ngDevMode && assertDefined(tI18n, `You should call i18nStart before i18nEnd`);\n    // Find the last node that was added before `i18nEnd`\n    /** @type {?} */\n    const lastCreatedNode = getPreviousOrParentTNode();\n    // Read the instructions to insert/move/remove DOM elements\n    /** @type {?} */\n    const visitedNodes = readCreateOpCodes(rootIndex, tI18n.create, tView, lView);\n    // Remove deleted nodes\n    /** @type {?} */\n    let index = rootIndex + 1;\n    while (index <= lastCreatedNode.index - HEADER_OFFSET) {\n        if (visitedNodes.indexOf(index) === -1) {\n            removeNode(tView, lView, index, /* markAsDetached */ true);\n        }\n        // Check if an element has any local refs and skip them\n        /** @type {?} */\n        const tNode = getTNode(tView, index);\n        if (tNode &&\n            (tNode.type === 0 /* Container */ || tNode.type === 3 /* Element */ ||\n                tNode.type === 4 /* ElementContainer */) &&\n            tNode.localNames !== null) {\n            // Divide by 2 to get the number of local refs,\n            // since they are stored as an array that also includes directive indexes,\n            // i.e. [\"localRef\", directiveIndex, ...]\n            index += tNode.localNames.length >> 1;\n        }\n        index++;\n    }\n}\n/**\n * Creates and stores the dynamic TNode, and unhooks it from the tree for now.\n * @param {?} tView\n * @param {?} lView\n * @param {?} index\n * @param {?} type\n * @param {?} native\n * @param {?} name\n * @return {?}\n */\nfunction createDynamicNodeAtIndex(tView, lView, index, type, native, name) {\n    /** @type {?} */\n    const previousOrParentTNode = getPreviousOrParentTNode();\n    ngDevMode && assertDataInRange(lView, index + HEADER_OFFSET);\n    lView[index + HEADER_OFFSET] = native;\n    /** @type {?} */\n    const tNode = getOrCreateTNode(tView, lView[T_HOST], index, (/** @type {?} */ (type)), name, null);\n    // We are creating a dynamic node, the previous tNode might not be pointing at this node.\n    // We will link ourselves into the tree later with `appendI18nNode`.\n    if (previousOrParentTNode && previousOrParentTNode.next === tNode) {\n        previousOrParentTNode.next = null;\n    }\n    return tNode;\n}\n/**\n * @param {?} index\n * @param {?} createOpCodes\n * @param {?} tView\n * @param {?} lView\n * @return {?}\n */\nfunction readCreateOpCodes(index, createOpCodes, tView, lView) {\n    /** @type {?} */\n    const renderer = lView[RENDERER];\n    /** @type {?} */\n    let currentTNode = null;\n    /** @type {?} */\n    let previousTNode = null;\n    /** @type {?} */\n    const visitedNodes = [];\n    for (let i = 0; i < createOpCodes.length; i++) {\n        /** @type {?} */\n        const opCode = createOpCodes[i];\n        if (typeof opCode == 'string') {\n            /** @type {?} */\n            const textRNode = createTextNode(opCode, renderer);\n            /** @type {?} */\n            const textNodeIndex = (/** @type {?} */ (createOpCodes[++i]));\n            ngDevMode && ngDevMode.rendererCreateTextNode++;\n            previousTNode = currentTNode;\n            currentTNode =\n                createDynamicNodeAtIndex(tView, lView, textNodeIndex, 3 /* Element */, textRNode, null);\n            visitedNodes.push(textNodeIndex);\n            setIsNotParent();\n        }\n        else if (typeof opCode == 'number') {\n            switch (opCode & 7 /* MASK_OPCODE */) {\n                case 1 /* AppendChild */:\n                    /** @type {?} */\n                    const destinationNodeIndex = opCode >>> 17 /* SHIFT_PARENT */;\n                    /** @type {?} */\n                    let destinationTNode;\n                    if (destinationNodeIndex === index) {\n                        // If the destination node is `i18nStart`, we don't have a\n                        // top-level node and we should use the host node instead\n                        destinationTNode = (/** @type {?} */ (lView[T_HOST]));\n                    }\n                    else {\n                        destinationTNode = getTNode(tView, destinationNodeIndex);\n                    }\n                    ngDevMode &&\n                        assertDefined((/** @type {?} */ (currentTNode)), `You need to create or select a node before you can insert it into the DOM`);\n                    previousTNode =\n                        appendI18nNode(tView, (/** @type {?} */ (currentTNode)), destinationTNode, previousTNode, lView);\n                    break;\n                case 0 /* Select */:\n                    // Negative indicies indicate that a given TNode is a sibling node, not a parent node\n                    // (see `i18nStartFirstPass` for additional information).\n                    /** @type {?} */\n                    const isParent = opCode >= 0;\n                    /** @type {?} */\n                    const nodeIndex = (isParent ? opCode : ~opCode) >>> 3 /* SHIFT_REF */;\n                    visitedNodes.push(nodeIndex);\n                    previousTNode = currentTNode;\n                    currentTNode = getTNode(tView, nodeIndex);\n                    if (currentTNode) {\n                        setPreviousOrParentTNode(currentTNode, isParent);\n                    }\n                    break;\n                case 5 /* ElementEnd */:\n                    /** @type {?} */\n                    const elementIndex = opCode >>> 3 /* SHIFT_REF */;\n                    previousTNode = currentTNode = getTNode(tView, elementIndex);\n                    setPreviousOrParentTNode(currentTNode, false);\n                    break;\n                case 4 /* Attr */:\n                    /** @type {?} */\n                    const elementNodeIndex = opCode >>> 3 /* SHIFT_REF */;\n                    /** @type {?} */\n                    const attrName = (/** @type {?} */ (createOpCodes[++i]));\n                    /** @type {?} */\n                    const attrValue = (/** @type {?} */ (createOpCodes[++i]));\n                    // This code is used for ICU expressions only, since we don't support\n                    // directives/components in ICUs, we don't need to worry about inputs here\n                    elementAttributeInternal(getTNode(tView, elementNodeIndex), lView, attrName, attrValue, null, null);\n                    break;\n                default:\n                    throw new Error(`Unable to determine the type of mutate operation for \"${opCode}\"`);\n            }\n        }\n        else {\n            switch (opCode) {\n                case COMMENT_MARKER:\n                    /** @type {?} */\n                    const commentValue = (/** @type {?} */ (createOpCodes[++i]));\n                    /** @type {?} */\n                    const commentNodeIndex = (/** @type {?} */ (createOpCodes[++i]));\n                    ngDevMode &&\n                        assertEqual(typeof commentValue, 'string', `Expected \"${commentValue}\" to be a comment node value`);\n                    /** @type {?} */\n                    const commentRNode = renderer.createComment(commentValue);\n                    ngDevMode && ngDevMode.rendererCreateComment++;\n                    previousTNode = currentTNode;\n                    currentTNode = createDynamicNodeAtIndex(tView, lView, commentNodeIndex, 5 /* IcuContainer */, commentRNode, null);\n                    visitedNodes.push(commentNodeIndex);\n                    attachPatchData(commentRNode, lView);\n                    ((/** @type {?} */ (currentTNode))).activeCaseIndex = null;\n                    // We will add the case nodes later, during the update phase\n                    setIsNotParent();\n                    break;\n                case ELEMENT_MARKER:\n                    /** @type {?} */\n                    const tagNameValue = (/** @type {?} */ (createOpCodes[++i]));\n                    /** @type {?} */\n                    const elementNodeIndex = (/** @type {?} */ (createOpCodes[++i]));\n                    ngDevMode &&\n                        assertEqual(typeof tagNameValue, 'string', `Expected \"${tagNameValue}\" to be an element node tag name`);\n                    /** @type {?} */\n                    const elementRNode = renderer.createElement(tagNameValue);\n                    ngDevMode && ngDevMode.rendererCreateElement++;\n                    previousTNode = currentTNode;\n                    currentTNode = createDynamicNodeAtIndex(tView, lView, elementNodeIndex, 3 /* Element */, elementRNode, tagNameValue);\n                    visitedNodes.push(elementNodeIndex);\n                    break;\n                default:\n                    throw new Error(`Unable to determine the type of mutate operation for \"${opCode}\"`);\n            }\n        }\n    }\n    setIsNotParent();\n    return visitedNodes;\n}\n/**\n * @param {?} updateOpCodes\n * @param {?} icus\n * @param {?} bindingsStartIndex\n * @param {?} changeMask\n * @param {?} tView\n * @param {?} lView\n * @param {?=} bypassCheckBit\n * @return {?}\n */\nfunction readUpdateOpCodes(updateOpCodes, icus, bindingsStartIndex, changeMask, tView, lView, bypassCheckBit = false) {\n    /** @type {?} */\n    let caseCreated = false;\n    for (let i = 0; i < updateOpCodes.length; i++) {\n        // bit code to check if we should apply the next update\n        /** @type {?} */\n        const checkBit = (/** @type {?} */ (updateOpCodes[i]));\n        // Number of opCodes to skip until next set of update codes\n        /** @type {?} */\n        const skipCodes = (/** @type {?} */ (updateOpCodes[++i]));\n        if (bypassCheckBit || (checkBit & changeMask)) {\n            // The value has been updated since last checked\n            /** @type {?} */\n            let value = '';\n            for (let j = i + 1; j <= (i + skipCodes); j++) {\n                /** @type {?} */\n                const opCode = updateOpCodes[j];\n                if (typeof opCode == 'string') {\n                    value += opCode;\n                }\n                else if (typeof opCode == 'number') {\n                    if (opCode < 0) {\n                        // It's a binding index whose value is negative\n                        value += renderStringify(lView[bindingsStartIndex - opCode]);\n                    }\n                    else {\n                        /** @type {?} */\n                        const nodeIndex = opCode >>> 2 /* SHIFT_REF */;\n                        /** @type {?} */\n                        let tIcuIndex;\n                        /** @type {?} */\n                        let tIcu;\n                        /** @type {?} */\n                        let icuTNode;\n                        switch (opCode & 3 /* MASK_OPCODE */) {\n                            case 1 /* Attr */:\n                                /** @type {?} */\n                                const propName = (/** @type {?} */ (updateOpCodes[++j]));\n                                /** @type {?} */\n                                const sanitizeFn = (/** @type {?} */ (updateOpCodes[++j]));\n                                elementPropertyInternal(tView, getTNode(tView, nodeIndex), lView, propName, value, lView[RENDERER], sanitizeFn, false);\n                                break;\n                            case 0 /* Text */:\n                                textBindingInternal(lView, nodeIndex, value);\n                                break;\n                            case 2 /* IcuSwitch */:\n                                tIcuIndex = (/** @type {?} */ (updateOpCodes[++j]));\n                                tIcu = (/** @type {?} */ (icus))[tIcuIndex];\n                                icuTNode = (/** @type {?} */ (getTNode(tView, nodeIndex)));\n                                // If there is an active case, delete the old nodes\n                                if (icuTNode.activeCaseIndex !== null) {\n                                    /** @type {?} */\n                                    const removeCodes = tIcu.remove[icuTNode.activeCaseIndex];\n                                    for (let k = 0; k < removeCodes.length; k++) {\n                                        /** @type {?} */\n                                        const removeOpCode = (/** @type {?} */ (removeCodes[k]));\n                                        switch (removeOpCode & 7 /* MASK_OPCODE */) {\n                                            case 3 /* Remove */:\n                                                /** @type {?} */\n                                                const nodeIndex = removeOpCode >>> 3 /* SHIFT_REF */;\n                                                // Remove DOM element, but do *not* mark TNode as detached, since we are\n                                                // just switching ICU cases (while keeping the same TNode), so a DOM element\n                                                // representing a new ICU case will be re-created.\n                                                removeNode(tView, lView, nodeIndex, /* markAsDetached */ false);\n                                                break;\n                                            case 6 /* RemoveNestedIcu */:\n                                                /** @type {?} */\n                                                const nestedIcuNodeIndex = (/** @type {?} */ (removeCodes[k + 1])) >>> 3 /* SHIFT_REF */;\n                                                /** @type {?} */\n                                                const nestedIcuTNode = (/** @type {?} */ (getTNode(tView, nestedIcuNodeIndex)));\n                                                /** @type {?} */\n                                                const activeIndex = nestedIcuTNode.activeCaseIndex;\n                                                if (activeIndex !== null) {\n                                                    /** @type {?} */\n                                                    const nestedIcuTIndex = removeOpCode >>> 3 /* SHIFT_REF */;\n                                                    /** @type {?} */\n                                                    const nestedTIcu = (/** @type {?} */ (icus))[nestedIcuTIndex];\n                                                    addAllToArray(nestedTIcu.remove[activeIndex], removeCodes);\n                                                }\n                                                break;\n                                        }\n                                    }\n                                }\n                                // Update the active caseIndex\n                                /** @type {?} */\n                                const caseIndex = getCaseIndex(tIcu, value);\n                                icuTNode.activeCaseIndex = caseIndex !== -1 ? caseIndex : null;\n                                if (caseIndex > -1) {\n                                    // Add the nodes for the new case\n                                    readCreateOpCodes(-1, tIcu.create[caseIndex], tView, lView);\n                                    caseCreated = true;\n                                }\n                                break;\n                            case 3 /* IcuUpdate */:\n                                tIcuIndex = (/** @type {?} */ (updateOpCodes[++j]));\n                                tIcu = (/** @type {?} */ (icus))[tIcuIndex];\n                                icuTNode = (/** @type {?} */ (getTNode(tView, nodeIndex)));\n                                if (icuTNode.activeCaseIndex !== null) {\n                                    readUpdateOpCodes(tIcu.update[icuTNode.activeCaseIndex], icus, bindingsStartIndex, changeMask, tView, lView, caseCreated);\n                                }\n                                break;\n                        }\n                    }\n                }\n            }\n        }\n        i += skipCodes;\n    }\n}\n/**\n * @param {?} tView\n * @param {?} lView\n * @param {?} index\n * @param {?} markAsDetached\n * @return {?}\n */\nfunction removeNode(tView, lView, index, markAsDetached) {\n    /** @type {?} */\n    const removedPhTNode = getTNode(tView, index);\n    /** @type {?} */\n    const removedPhRNode = getNativeByIndex(index, lView);\n    if (removedPhRNode) {\n        nativeRemoveNode(lView[RENDERER], removedPhRNode);\n    }\n    /** @type {?} */\n    const slotValue = (/** @type {?} */ (load(lView, index)));\n    if (isLContainer(slotValue)) {\n        /** @type {?} */\n        const lContainer = (/** @type {?} */ (slotValue));\n        if (removedPhTNode.type !== 0 /* Container */) {\n            nativeRemoveNode(lView[RENDERER], lContainer[NATIVE]);\n        }\n    }\n    if (markAsDetached) {\n        // Define this node as detached to avoid projecting it later\n        removedPhTNode.flags |= 64 /* isDetached */;\n    }\n    ngDevMode && ngDevMode.rendererRemoveNode++;\n}\n/**\n *\n * Use this instruction to create a translation block that doesn't contain any placeholder.\n * It calls both {\\@link i18nStart} and {\\@link i18nEnd} in one instruction.\n *\n * The translation `message` is the value which is locale specific. The translation string may\n * contain placeholders which associate inner elements and sub-templates within the translation.\n *\n * The translation `message` placeholders are:\n * - `�{index}(:{block})�`: *Binding Placeholder*: Marks a location where an expression will be\n *   interpolated into. The placeholder `index` points to the expression binding index. An optional\n *   `block` that matches the sub-template in which it was declared.\n * - `�#{index}(:{block})�`/`�/#{index}(:{block})�`: *Element Placeholder*:  Marks the beginning\n *   and end of DOM element that were embedded in the original translation block. The placeholder\n *   `index` points to the element index in the template instructions set. An optional `block` that\n *   matches the sub-template in which it was declared.\n * - `�*{index}:{block}�`/`�/*{index}:{block}�`: *Sub-template Placeholder*: Sub-templates must be\n *   split up and translated separately in each angular template function. The `index` points to the\n *   `template` instruction index. A `block` that matches the sub-template in which it was declared.\n *\n * \\@codeGenApi\n * @param {?} index A unique index of the translation in the static block.\n * @param {?} message The translation message.\n * @param {?=} subTemplateIndex Optional sub-template index in the `message`.\n *\n * @return {?}\n */\nfunction ɵɵi18n(index, message, subTemplateIndex) {\n    ɵɵi18nStart(index, message, subTemplateIndex);\n    ɵɵi18nEnd();\n}\n/**\n * Marks a list of attributes as translatable.\n *\n * \\@codeGenApi\n * @param {?} index A unique index in the static block\n * @param {?} values\n *\n * @return {?}\n */\nfunction ɵɵi18nAttributes(index, values) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    ngDevMode && assertDefined(tView, `tView should be defined`);\n    i18nAttributesFirstPass(lView, tView, index, values);\n}\n/**\n * See `i18nAttributes` above.\n * @param {?} lView\n * @param {?} tView\n * @param {?} index\n * @param {?} values\n * @return {?}\n */\nfunction i18nAttributesFirstPass(lView, tView, index, values) {\n    /** @type {?} */\n    const previousElement = getPreviousOrParentTNode();\n    /** @type {?} */\n    const previousElementIndex = previousElement.index - HEADER_OFFSET;\n    /** @type {?} */\n    const updateOpCodes = [];\n    for (let i = 0; i < values.length; i += 2) {\n        /** @type {?} */\n        const attrName = values[i];\n        /** @type {?} */\n        const message = values[i + 1];\n        /** @type {?} */\n        const parts = message.split(ICU_REGEXP);\n        for (let j = 0; j < parts.length; j++) {\n            /** @type {?} */\n            const value = parts[j];\n            if (j & 1) {\n                // Odd indexes are ICU expressions\n                // TODO(ocombe): support ICU expressions in attributes\n                throw new Error('ICU expressions are not yet supported in attributes');\n            }\n            else if (value !== '') {\n                // Even indexes are text (including bindings)\n                /** @type {?} */\n                const hasBinding = !!value.match(BINDING_REGEXP);\n                if (hasBinding) {\n                    if (tView.firstCreatePass && tView.data[index + HEADER_OFFSET] === null) {\n                        addAllToArray(generateBindingUpdateOpCodes(value, previousElementIndex, attrName), updateOpCodes);\n                    }\n                }\n                else {\n                    /** @type {?} */\n                    const tNode = getTNode(tView, previousElementIndex);\n                    // Set attributes for Elements only, for other types (like ElementContainer),\n                    // only set inputs below\n                    if (tNode.type === 3 /* Element */) {\n                        elementAttributeInternal(tNode, lView, attrName, value, null, null);\n                    }\n                    // Check if that attribute is a directive input\n                    /** @type {?} */\n                    const dataValue = tNode.inputs !== null && tNode.inputs[attrName];\n                    if (dataValue) {\n                        setInputsForProperty(tView, lView, dataValue, attrName, value);\n                        if (ngDevMode) {\n                            /** @type {?} */\n                            const element = (/** @type {?} */ (getNativeByIndex(previousElementIndex, lView)));\n                            setNgReflectProperties(lView, element, tNode.type, dataValue, value);\n                        }\n                    }\n                }\n            }\n        }\n    }\n    if (tView.firstCreatePass && tView.data[index + HEADER_OFFSET] === null) {\n        tView.data[index + HEADER_OFFSET] = updateOpCodes;\n    }\n}\n/** @type {?} */\nlet changeMask = 0b0;\n/** @type {?} */\nlet shiftsCounter = 0;\n/**\n * Stores the values of the bindings during each update cycle in order to determine if we need to\n * update the translated nodes.\n *\n * \\@codeGenApi\n * @template T\n * @param {?} value The binding's value\n * @return {?} This function returns itself so that it may be chained\n * (e.g. `i18nExp(ctx.name)(ctx.title)`)\n *\n */\nfunction ɵɵi18nExp(value) {\n    /** @type {?} */\n    const lView = getLView();\n    if (bindingUpdated(lView, nextBindingIndex(), value)) {\n        changeMask = changeMask | (1 << shiftsCounter);\n    }\n    shiftsCounter++;\n    return ɵɵi18nExp;\n}\n/**\n * Updates a translation block or an i18n attribute when the bindings have changed.\n *\n * \\@codeGenApi\n * @param {?} index Index of either {\\@link i18nStart} (translation block) or {\\@link i18nAttributes}\n * (i18n attribute) on which it should update the content.\n *\n * @return {?}\n */\nfunction ɵɵi18nApply(index) {\n    if (shiftsCounter) {\n        /** @type {?} */\n        const tView = getTView();\n        ngDevMode && assertDefined(tView, `tView should be defined`);\n        /** @type {?} */\n        const tI18n = tView.data[index + HEADER_OFFSET];\n        /** @type {?} */\n        let updateOpCodes;\n        /** @type {?} */\n        let icus = null;\n        if (Array.isArray(tI18n)) {\n            updateOpCodes = (/** @type {?} */ (tI18n));\n        }\n        else {\n            updateOpCodes = ((/** @type {?} */ (tI18n))).update;\n            icus = ((/** @type {?} */ (tI18n))).icus;\n        }\n        /** @type {?} */\n        const bindingsStartIndex = getBindingIndex() - shiftsCounter - 1;\n        /** @type {?} */\n        const lView = getLView();\n        readUpdateOpCodes(updateOpCodes, icus, bindingsStartIndex, changeMask, tView, lView);\n        // Reset changeMask & maskBit to default for the next update cycle\n        changeMask = 0b0;\n        shiftsCounter = 0;\n    }\n}\n/**\n * Returns the index of the current case of an ICU expression depending on the main binding value\n *\n * @param {?} icuExpression\n * @param {?} bindingValue The value of the main binding used by this ICU expression\n * @return {?}\n */\nfunction getCaseIndex(icuExpression, bindingValue) {\n    /** @type {?} */\n    let index = icuExpression.cases.indexOf(bindingValue);\n    if (index === -1) {\n        switch (icuExpression.type) {\n            case 1 /* plural */: {\n                /** @type {?} */\n                const resolvedCase = getPluralCase(bindingValue, getLocaleId());\n                index = icuExpression.cases.indexOf(resolvedCase);\n                if (index === -1 && resolvedCase !== 'other') {\n                    index = icuExpression.cases.indexOf('other');\n                }\n                break;\n            }\n            case 0 /* select */: {\n                index = icuExpression.cases.indexOf('other');\n                break;\n            }\n        }\n    }\n    return index;\n}\n/**\n * Generate the OpCodes for ICU expressions.\n *\n * @param {?} tIcus\n * @param {?} icuExpression\n * @param {?} startIndex\n * @param {?} expandoStartIndex\n * @return {?}\n */\nfunction icuStart(tIcus, icuExpression, startIndex, expandoStartIndex) {\n    /** @type {?} */\n    const createCodes = [];\n    /** @type {?} */\n    const removeCodes = [];\n    /** @type {?} */\n    const updateCodes = [];\n    /** @type {?} */\n    const vars = [];\n    /** @type {?} */\n    const childIcus = [];\n    for (let i = 0; i < icuExpression.values.length; i++) {\n        // Each value is an array of strings & other ICU expressions\n        /** @type {?} */\n        const valueArr = icuExpression.values[i];\n        /** @type {?} */\n        const nestedIcus = [];\n        for (let j = 0; j < valueArr.length; j++) {\n            /** @type {?} */\n            const value = valueArr[j];\n            if (typeof value !== 'string') {\n                // It is an nested ICU expression\n                /** @type {?} */\n                const icuIndex = nestedIcus.push((/** @type {?} */ (value))) - 1;\n                // Replace nested ICU expression by a comment node\n                valueArr[j] = `<!--�${icuIndex}�-->`;\n            }\n        }\n        /** @type {?} */\n        const icuCase = parseIcuCase(valueArr.join(''), startIndex, nestedIcus, tIcus, expandoStartIndex);\n        createCodes.push(icuCase.create);\n        removeCodes.push(icuCase.remove);\n        updateCodes.push(icuCase.update);\n        vars.push(icuCase.vars);\n        childIcus.push(icuCase.childIcus);\n    }\n    /** @type {?} */\n    const tIcu = {\n        type: icuExpression.type,\n        vars,\n        childIcus,\n        cases: icuExpression.cases,\n        create: createCodes,\n        remove: removeCodes,\n        update: updateCodes\n    };\n    tIcus.push(tIcu);\n    // Adding the maximum possible of vars needed (based on the cases with the most vars)\n    i18nVarsCount += Math.max(...vars);\n}\n/**\n * Transforms a string template into an HTML template and a list of instructions used to update\n * attributes or nodes that contain bindings.\n *\n * @param {?} unsafeHtml The string to parse\n * @param {?} parentIndex\n * @param {?} nestedIcus\n * @param {?} tIcus\n * @param {?} expandoStartIndex\n * @return {?}\n */\nfunction parseIcuCase(unsafeHtml, parentIndex, nestedIcus, tIcus, expandoStartIndex) {\n    /** @type {?} */\n    const inertBodyHelper = new InertBodyHelper(getDocument());\n    /** @type {?} */\n    const inertBodyElement = inertBodyHelper.getInertBodyElement(unsafeHtml);\n    if (!inertBodyElement) {\n        throw new Error('Unable to generate inert body element');\n    }\n    /** @type {?} */\n    const wrapper = (/** @type {?} */ (getTemplateContent((/** @type {?} */ (inertBodyElement))))) || inertBodyElement;\n    /** @type {?} */\n    const opCodes = { vars: 0, childIcus: [], create: [], remove: [], update: [] };\n    parseNodes(wrapper.firstChild, opCodes, parentIndex, nestedIcus, tIcus, expandoStartIndex);\n    return opCodes;\n}\n/** @type {?} */\nconst NESTED_ICU = /�(\\d+)�/;\n/**\n * Parses a node, its children and its siblings, and generates the mutate & update OpCodes.\n *\n * @param {?} currentNode The first node to parse\n * @param {?} icuCase The data for the ICU expression case that contains those nodes\n * @param {?} parentIndex Index of the current node's parent\n * @param {?} nestedIcus Data for the nested ICU expressions that this case contains\n * @param {?} tIcus Data for all ICU expressions of the current message\n * @param {?} expandoStartIndex Expando start index for the current ICU expression\n * @return {?}\n */\nfunction parseNodes(currentNode, icuCase, parentIndex, nestedIcus, tIcus, expandoStartIndex) {\n    if (currentNode) {\n        /** @type {?} */\n        const nestedIcusToCreate = [];\n        while (currentNode) {\n            /** @type {?} */\n            const nextNode = currentNode.nextSibling;\n            /** @type {?} */\n            const newIndex = expandoStartIndex + ++icuCase.vars;\n            switch (currentNode.nodeType) {\n                case Node.ELEMENT_NODE:\n                    /** @type {?} */\n                    const element = (/** @type {?} */ (currentNode));\n                    /** @type {?} */\n                    const tagName = element.tagName.toLowerCase();\n                    if (!VALID_ELEMENTS.hasOwnProperty(tagName)) {\n                        // This isn't a valid element, we won't create an element for it\n                        icuCase.vars--;\n                    }\n                    else {\n                        icuCase.create.push(ELEMENT_MARKER, tagName, newIndex, parentIndex << 17 /* SHIFT_PARENT */ | 1 /* AppendChild */);\n                        /** @type {?} */\n                        const elAttrs = element.attributes;\n                        for (let i = 0; i < elAttrs.length; i++) {\n                            /** @type {?} */\n                            const attr = (/** @type {?} */ (elAttrs.item(i)));\n                            /** @type {?} */\n                            const lowerAttrName = attr.name.toLowerCase();\n                            /** @type {?} */\n                            const hasBinding = !!attr.value.match(BINDING_REGEXP);\n                            // we assume the input string is safe, unless it's using a binding\n                            if (hasBinding) {\n                                if (VALID_ATTRS.hasOwnProperty(lowerAttrName)) {\n                                    if (URI_ATTRS[lowerAttrName]) {\n                                        addAllToArray(generateBindingUpdateOpCodes(attr.value, newIndex, attr.name, _sanitizeUrl), icuCase.update);\n                                    }\n                                    else if (SRCSET_ATTRS[lowerAttrName]) {\n                                        addAllToArray(generateBindingUpdateOpCodes(attr.value, newIndex, attr.name, sanitizeSrcset), icuCase.update);\n                                    }\n                                    else {\n                                        addAllToArray(generateBindingUpdateOpCodes(attr.value, newIndex, attr.name), icuCase.update);\n                                    }\n                                }\n                                else {\n                                    ngDevMode &&\n                                        console.warn(`WARNING: ignoring unsafe attribute value ${lowerAttrName} on element ${tagName} (see http://g.co/ng/security#xss)`);\n                                }\n                            }\n                            else {\n                                icuCase.create.push(newIndex << 3 /* SHIFT_REF */ | 4 /* Attr */, attr.name, attr.value);\n                            }\n                        }\n                        // Parse the children of this node (if any)\n                        parseNodes(currentNode.firstChild, icuCase, newIndex, nestedIcus, tIcus, expandoStartIndex);\n                        // Remove the parent node after the children\n                        icuCase.remove.push(newIndex << 3 /* SHIFT_REF */ | 3 /* Remove */);\n                    }\n                    break;\n                case Node.TEXT_NODE:\n                    /** @type {?} */\n                    const value = currentNode.textContent || '';\n                    /** @type {?} */\n                    const hasBinding = value.match(BINDING_REGEXP);\n                    icuCase.create.push(hasBinding ? '' : value, newIndex, parentIndex << 17 /* SHIFT_PARENT */ | 1 /* AppendChild */);\n                    icuCase.remove.push(newIndex << 3 /* SHIFT_REF */ | 3 /* Remove */);\n                    if (hasBinding) {\n                        addAllToArray(generateBindingUpdateOpCodes(value, newIndex), icuCase.update);\n                    }\n                    break;\n                case Node.COMMENT_NODE:\n                    // Check if the comment node is a placeholder for a nested ICU\n                    /** @type {?} */\n                    const match = NESTED_ICU.exec(currentNode.textContent || '');\n                    if (match) {\n                        /** @type {?} */\n                        const nestedIcuIndex = parseInt(match[1], 10);\n                        /** @type {?} */\n                        const newLocal = ngDevMode ? `nested ICU ${nestedIcuIndex}` : '';\n                        // Create the comment node that will anchor the ICU expression\n                        icuCase.create.push(COMMENT_MARKER, newLocal, newIndex, parentIndex << 17 /* SHIFT_PARENT */ | 1 /* AppendChild */);\n                        /** @type {?} */\n                        const nestedIcu = nestedIcus[nestedIcuIndex];\n                        nestedIcusToCreate.push([nestedIcu, newIndex]);\n                    }\n                    else {\n                        // We do not handle any other type of comment\n                        icuCase.vars--;\n                    }\n                    break;\n                default:\n                    // We do not handle any other type of element\n                    icuCase.vars--;\n            }\n            currentNode = (/** @type {?} */ (nextNode));\n        }\n        for (let i = 0; i < nestedIcusToCreate.length; i++) {\n            /** @type {?} */\n            const nestedIcu = nestedIcusToCreate[i][0];\n            /** @type {?} */\n            const nestedIcuNodeIndex = nestedIcusToCreate[i][1];\n            icuStart(tIcus, nestedIcu, nestedIcuNodeIndex, expandoStartIndex + icuCase.vars);\n            // Since this is recursive, the last TIcu that was pushed is the one we want\n            /** @type {?} */\n            const nestTIcuIndex = tIcus.length - 1;\n            icuCase.vars += Math.max(...tIcus[nestTIcuIndex].vars);\n            icuCase.childIcus.push(nestTIcuIndex);\n            /** @type {?} */\n            const mask = getBindingMask(nestedIcu);\n            icuCase.update.push(toMaskBit(nestedIcu.mainBinding), // mask of the main binding\n            3, // skip 3 opCodes if not changed\n            -1 - nestedIcu.mainBinding, nestedIcuNodeIndex << 2 /* SHIFT_REF */ | 2 /* IcuSwitch */, nestTIcuIndex, mask, // mask of all the bindings of this ICU expression\n            2, // skip 2 opCodes if not changed\n            nestedIcuNodeIndex << 2 /* SHIFT_REF */ | 3 /* IcuUpdate */, nestTIcuIndex);\n            icuCase.remove.push(nestTIcuIndex << 3 /* SHIFT_REF */ | 6 /* RemoveNestedIcu */, nestedIcuNodeIndex << 3 /* SHIFT_REF */ | 3 /* Remove */);\n        }\n    }\n}\n/**\n * Angular Dart introduced &ngsp; as a placeholder for non-removable space, see:\n * https://github.com/dart-lang/angular/blob/0bb611387d29d65b5af7f9d2515ab571fd3fbee4/_tests/test/compiler/preserve_whitespace_test.dart#L25-L32\n * In Angular Dart &ngsp; is converted to the 0xE500 PUA (Private Use Areas) unicode character\n * and later on replaced by a space. We are re-implementing the same idea here, since translations\n * might contain this special character.\n * @type {?}\n */\nconst NGSP_UNICODE_REGEXP = /\\uE500/g;\n/**\n * @param {?} value\n * @return {?}\n */\nfunction replaceNgsp(value) {\n    return value.replace(NGSP_UNICODE_REGEXP, ' ');\n}\n/**\n * The locale id that the application is currently using (for translations and ICU expressions).\n * This is the ivy version of `LOCALE_ID` that was defined as an injection token for the view engine\n * but is now defined as a global value.\n * @type {?}\n */\nlet LOCALE_ID = DEFAULT_LOCALE_ID;\n/**\n * Sets the locale id that will be used for translations and ICU expressions.\n * This is the ivy version of `LOCALE_ID` that was defined as an injection token for the view engine\n * but is now defined as a global value.\n *\n * @param {?} localeId\n * @return {?}\n */\nfunction setLocaleId(localeId) {\n    assertDefined(localeId, `Expected localeId to be defined`);\n    if (typeof localeId === 'string') {\n        LOCALE_ID = localeId.toLowerCase().replace(/_/g, '-');\n    }\n}\n/**\n * Gets the locale id that will be used for translations and ICU expressions.\n * This is the ivy version of `LOCALE_ID` that was defined as an injection token for the view engine\n * but is now defined as a global value.\n * @return {?}\n */\nfunction getLocaleId() {\n    return LOCALE_ID;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/metadata.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction TypeWithMetadata() { }\nif (false) {\n    /** @type {?|undefined} */\n    TypeWithMetadata.prototype.decorators;\n    /** @type {?|undefined} */\n    TypeWithMetadata.prototype.ctorParameters;\n    /** @type {?|undefined} */\n    TypeWithMetadata.prototype.propDecorators;\n}\n/**\n * Adds decorator, constructor, and property metadata to a given type via static metadata fields\n * on the type.\n *\n * These metadata fields can later be read with Angular's `ReflectionCapabilities` API.\n *\n * Calls to `setClassMetadata` can be marked as pure, resulting in the metadata assignments being\n * tree-shaken away during production builds.\n * @param {?} type\n * @param {?} decorators\n * @param {?} ctorParameters\n * @param {?} propDecorators\n * @return {?}\n */\nfunction setClassMetadata(type, decorators, ctorParameters, propDecorators) {\n    return (/** @type {?} */ (noSideEffects((/**\n     * @return {?}\n     */\n    () => {\n        /** @type {?} */\n        const clazz = (/** @type {?} */ (type));\n        // We determine whether a class has its own metadata by taking the metadata from the\n        // parent constructor and checking whether it's the same as the subclass metadata below.\n        // We can't use `hasOwnProperty` here because it doesn't work correctly in IE10 for\n        // static fields that are defined by TS. See\n        // https://github.com/angular/angular/pull/28439#issuecomment-459349218.\n        /** @type {?} */\n        const parentPrototype = clazz.prototype ? Object.getPrototypeOf(clazz.prototype) : null;\n        /** @type {?} */\n        const parentConstructor = parentPrototype && parentPrototype.constructor;\n        if (decorators !== null) {\n            if (clazz.decorators !== undefined &&\n                (!parentConstructor || parentConstructor.decorators !== clazz.decorators)) {\n                clazz.decorators.push(...decorators);\n            }\n            else {\n                clazz.decorators = decorators;\n            }\n        }\n        if (ctorParameters !== null) {\n            // Rather than merging, clobber the existing parameters. If other projects exist which\n            // use tsickle-style annotations and reflect over them in the same way, this could\n            // cause issues, but that is vanishingly unlikely.\n            clazz.ctorParameters = ctorParameters;\n        }\n        if (propDecorators !== null) {\n            // The property decorator objects are merged as it is possible different fields have\n            // different decorator types. Decorators on individual fields are not merged, as it's\n            // also incredibly unlikely that a field will be decorated both with an Angular\n            // decorator and a non-Angular decorator that's also been downleveled.\n            if (clazz.propDecorators !== undefined &&\n                (!parentConstructor ||\n                    parentConstructor.propDecorators !== clazz.propDecorators)) {\n                clazz.propDecorators = Object.assign(Object.assign({}, clazz.propDecorators), propDecorators);\n            }\n            else {\n                clazz.propDecorators = propDecorators;\n            }\n        }\n    }))));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/ng_module_factory_registration.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Map of module-id to the corresponding NgModule.\n * - In pre Ivy we track NgModuleFactory,\n * - In post Ivy we track the NgModuleType\n * @type {?}\n */\nconst modules = new Map();\n/**\n * Registers a loaded module. Should only be called from generated NgModuleFactory code.\n * \\@publicApi\n * @param {?} id\n * @param {?} factory\n * @return {?}\n */\nfunction registerModuleFactory(id, factory) {\n    /** @type {?} */\n    const existing = (/** @type {?} */ (modules.get(id)));\n    assertSameOrNotExisting(id, existing && existing.moduleType, factory.moduleType);\n    modules.set(id, factory);\n}\n/**\n * @param {?} id\n * @param {?} type\n * @param {?} incoming\n * @return {?}\n */\nfunction assertSameOrNotExisting(id, type, incoming) {\n    if (type && type !== incoming) {\n        throw new Error(`Duplicate module registered for ${id} - ${stringify(type)} vs ${stringify(type.name)}`);\n    }\n}\n/**\n * @param {?} ngModuleType\n * @return {?}\n */\nfunction registerNgModuleType(ngModuleType) {\n    if (ngModuleType.ɵmod.id !== null) {\n        /** @type {?} */\n        const id = ngModuleType.ɵmod.id;\n        /** @type {?} */\n        const existing = (/** @type {?} */ (modules.get(id)));\n        assertSameOrNotExisting(id, existing, ngModuleType);\n        modules.set(id, ngModuleType);\n    }\n    /** @type {?} */\n    let imports = ngModuleType.ɵmod.imports;\n    if (imports instanceof Function) {\n        imports = imports();\n    }\n    if (imports) {\n        imports.forEach((/**\n         * @param {?} i\n         * @return {?}\n         */\n        i => registerNgModuleType((/** @type {?} */ (i)))));\n    }\n}\n/**\n * @return {?}\n */\nfunction clearModulesForTest() {\n    modules.clear();\n}\n/**\n * @param {?} id\n * @return {?}\n */\nfunction getRegisteredNgModuleType(id) {\n    return modules.get(id) || autoRegisterModuleById[id];\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/ng_module_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n * @template T\n */\nfunction NgModuleType() { }\nif (false) {\n    /** @type {?} */\n    NgModuleType.prototype.ɵmod;\n}\n/**\n * @template T\n */\nclass NgModuleRef$1 extends NgModuleRef {\n    /**\n     * @param {?} ngModuleType\n     * @param {?} _parent\n     */\n    constructor(ngModuleType, _parent) {\n        super();\n        this._parent = _parent;\n        // tslint:disable-next-line:require-internal-with-underscore\n        this._bootstrapComponents = [];\n        this.injector = this;\n        this.destroyCbs = [];\n        // When bootstrapping a module we have a dependency graph that looks like this:\n        // ApplicationRef -> ComponentFactoryResolver -> NgModuleRef. The problem is that if the\n        // module being resolved tries to inject the ComponentFactoryResolver, it'll create a\n        // circular dependency which will result in a runtime error, because the injector doesn't\n        // exist yet. We work around the issue by creating the ComponentFactoryResolver ourselves\n        // and providing it, rather than letting the injector resolve it.\n        this.componentFactoryResolver = new ComponentFactoryResolver$1(this);\n        /** @type {?} */\n        const ngModuleDef = getNgModuleDef(ngModuleType);\n        ngDevMode &&\n            assertDefined(ngModuleDef, `NgModule '${stringify(ngModuleType)}' is not a subtype of 'NgModuleType'.`);\n        /** @type {?} */\n        const ngLocaleIdDef = getNgLocaleIdDef(ngModuleType);\n        ngLocaleIdDef && setLocaleId(ngLocaleIdDef);\n        this._bootstrapComponents = maybeUnwrapFn((/** @type {?} */ (ngModuleDef)).bootstrap);\n        this._r3Injector = (/** @type {?} */ (createInjectorWithoutInjectorInstances(ngModuleType, _parent, [\n            { provide: NgModuleRef, useValue: this }, {\n                provide: ComponentFactoryResolver,\n                useValue: this.componentFactoryResolver\n            }\n        ], stringify(ngModuleType))));\n        // We need to resolve the injector types separately from the injector creation, because\n        // the module might be trying to use this ref in its contructor for DI which will cause a\n        // circular error that will eventually error out, because the injector isn't created yet.\n        this._r3Injector._resolveInjectorDefTypes();\n        this.instance = this.get(ngModuleType);\n    }\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @param {?=} injectFlags\n     * @return {?}\n     */\n    get(token, notFoundValue = Injector.THROW_IF_NOT_FOUND, injectFlags = InjectFlags.Default) {\n        if (token === Injector || token === NgModuleRef || token === INJECTOR) {\n            return this;\n        }\n        return this._r3Injector.get(token, notFoundValue, injectFlags);\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        ngDevMode && assertDefined(this.destroyCbs, 'NgModule already destroyed');\n        /** @type {?} */\n        const injector = this._r3Injector;\n        !injector.destroyed && injector.destroy();\n        (/** @type {?} */ (this.destroyCbs)).forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        this.destroyCbs = null;\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    onDestroy(callback) {\n        ngDevMode && assertDefined(this.destroyCbs, 'NgModule already destroyed');\n        (/** @type {?} */ (this.destroyCbs)).push(callback);\n    }\n}\nif (false) {\n    /** @type {?} */\n    NgModuleRef$1.prototype._bootstrapComponents;\n    /** @type {?} */\n    NgModuleRef$1.prototype._r3Injector;\n    /** @type {?} */\n    NgModuleRef$1.prototype.injector;\n    /** @type {?} */\n    NgModuleRef$1.prototype.instance;\n    /** @type {?} */\n    NgModuleRef$1.prototype.destroyCbs;\n    /** @type {?} */\n    NgModuleRef$1.prototype.componentFactoryResolver;\n    /** @type {?} */\n    NgModuleRef$1.prototype._parent;\n}\n/**\n * @template T\n */\nclass NgModuleFactory$1 extends NgModuleFactory {\n    /**\n     * @param {?} moduleType\n     */\n    constructor(moduleType) {\n        super();\n        this.moduleType = moduleType;\n        /** @type {?} */\n        const ngModuleDef = getNgModuleDef(moduleType);\n        if (ngModuleDef !== null) {\n            // Register the NgModule with Angular's module registry. The location (and hence timing) of\n            // this call is critical to ensure this works correctly (modules get registered when expected)\n            // without bloating bundles (modules are registered when otherwise not referenced).\n            //\n            // In View Engine, registration occurs in the .ngfactory.js file as a side effect. This has\n            // several practical consequences:\n            //\n            // - If an .ngfactory file is not imported from, the module won't be registered (and can be\n            //   tree shaken).\n            // - If an .ngfactory file is imported from, the module will be registered even if an instance\n            //   is not actually created (via `create` below).\n            // - Since an .ngfactory file in View Engine references the .ngfactory files of the NgModule's\n            //   imports,\n            //\n            // In Ivy, things are a bit different. .ngfactory files still exist for compatibility, but are\n            // not a required API to use - there are other ways to obtain an NgModuleFactory for a given\n            // NgModule. Thus, relying on a side effect in the .ngfactory file is not sufficient. Instead,\n            // the side effect of registration is added here, in the constructor of NgModuleFactory,\n            // ensuring no matter how a factory is created, the module is registered correctly.\n            //\n            // An alternative would be to include the registration side effect inline following the actual\n            // NgModule definition. This also has the correct timing, but breaks tree-shaking - modules\n            // will be registered and retained even if they're otherwise never referenced.\n            registerNgModuleType((/** @type {?} */ (moduleType)));\n        }\n    }\n    /**\n     * @param {?} parentInjector\n     * @return {?}\n     */\n    create(parentInjector) {\n        return new NgModuleRef$1(this.moduleType, parentInjector);\n    }\n}\nif (false) {\n    /** @type {?} */\n    NgModuleFactory$1.prototype.moduleType;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/pure_function.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Bindings for pure functions are stored after regular bindings.\n *\n * |-------decls------|---------vars---------|                 |----- hostVars (dir1) ------|\n * ------------------------------------------------------------------------------------------\n * | nodes/refs/pipes | bindings | fn slots  | injector | dir1 | host bindings | host slots |\n * ------------------------------------------------------------------------------------------\n *                    ^                      ^\n *      TView.bindingStartIndex      TView.expandoStartIndex\n *\n * Pure function instructions are given an offset from the binding root. Adding the offset to the\n * binding root gives the first index where the bindings are stored. In component views, the binding\n * root is the bindingStartIndex. In host bindings, the binding root is the expandoStartIndex +\n * any directive instances + any hostVars in directives evaluated before it.\n *\n * See VIEW_DATA.md for more information about host binding resolution.\n */\n/**\n * If the value hasn't been saved, calls the pure function to store and return the\n * value. If it has been saved, returns the saved value.\n *\n * \\@codeGenApi\n * @template T\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn Function that returns a value\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} value\n *\n */\nfunction ɵɵpureFunction0(slotOffset, pureFn, thisArg) {\n    /** @type {?} */\n    const bindingIndex = getBindingRoot() + slotOffset;\n    /** @type {?} */\n    const lView = getLView();\n    return lView[bindingIndex] === NO_CHANGE ?\n        updateBinding(lView, bindingIndex, thisArg ? pureFn.call(thisArg) : pureFn()) :\n        getBinding(lView, bindingIndex);\n}\n/**\n * If the value of the provided exp has changed, calls the pure function to return\n * an updated value. Or if the value has not changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn Function that returns an updated value\n * @param {?} exp Updated expression value\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction1(slotOffset, pureFn, exp, thisArg) {\n    return pureFunction1Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction2(slotOffset, pureFn, exp1, exp2, thisArg) {\n    return pureFunction2Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp1, exp2, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction3(slotOffset, pureFn, exp1, exp2, exp3, thisArg) {\n    return pureFunction3Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp1, exp2, exp3, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?} exp4\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction4(slotOffset, pureFn, exp1, exp2, exp3, exp4, thisArg) {\n    return pureFunction4Internal(getLView(), getBindingRoot(), slotOffset, pureFn, exp1, exp2, exp3, exp4, thisArg);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?} exp4\n * @param {?} exp5\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction5(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, thisArg) {\n    /** @type {?} */\n    const bindingIndex = getBindingRoot() + slotOffset;\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated(lView, bindingIndex + 4, exp5) || different ?\n        updateBinding(lView, bindingIndex + 5, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5) :\n            pureFn(exp1, exp2, exp3, exp4, exp5)) :\n        getBinding(lView, bindingIndex + 5);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?} exp4\n * @param {?} exp5\n * @param {?} exp6\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction6(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, exp6, thisArg) {\n    /** @type {?} */\n    const bindingIndex = getBindingRoot() + slotOffset;\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated2(lView, bindingIndex + 4, exp5, exp6) || different ?\n        updateBinding(lView, bindingIndex + 6, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6) :\n            pureFn(exp1, exp2, exp3, exp4, exp5, exp6)) :\n        getBinding(lView, bindingIndex + 6);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?} exp4\n * @param {?} exp5\n * @param {?} exp6\n * @param {?} exp7\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction7(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, exp6, exp7, thisArg) {\n    /** @type {?} */\n    const bindingIndex = getBindingRoot() + slotOffset;\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    let different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated3(lView, bindingIndex + 4, exp5, exp6, exp7) || different ?\n        updateBinding(lView, bindingIndex + 7, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6, exp7) :\n            pureFn(exp1, exp2, exp3, exp4, exp5, exp6, exp7)) :\n        getBinding(lView, bindingIndex + 7);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?} exp4\n * @param {?} exp5\n * @param {?} exp6\n * @param {?} exp7\n * @param {?} exp8\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunction8(slotOffset, pureFn, exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8, thisArg) {\n    /** @type {?} */\n    const bindingIndex = getBindingRoot() + slotOffset;\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const different = bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4);\n    return bindingUpdated4(lView, bindingIndex + 4, exp5, exp6, exp7, exp8) || different ?\n        updateBinding(lView, bindingIndex + 8, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8) :\n            pureFn(exp1, exp2, exp3, exp4, exp5, exp6, exp7, exp8)) :\n        getBinding(lView, bindingIndex + 8);\n}\n/**\n * pureFunction instruction that can support any number of bindings.\n *\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * \\@codeGenApi\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn A pure function that takes binding values and builds an object or array\n * containing those values.\n * @param {?} exps An array of binding values\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction ɵɵpureFunctionV(slotOffset, pureFn, exps, thisArg) {\n    return pureFunctionVInternal(getLView(), getBindingRoot(), slotOffset, pureFn, exps, thisArg);\n}\n/**\n * Results of a pure function invocation are stored in LView in a dedicated slot that is initialized\n * to NO_CHANGE. In rare situations a pure pipe might throw an exception on the very first\n * invocation and not produce any valid results. In this case LView would keep holding the NO_CHANGE\n * value. The NO_CHANGE is not something that we can use in expressions / bindings thus we convert\n * it to `undefined`.\n * @param {?} lView\n * @param {?} returnValueIndex\n * @return {?}\n */\nfunction getPureFunctionReturnValue(lView, returnValueIndex) {\n    ngDevMode && assertDataInRange(lView, returnValueIndex);\n    /** @type {?} */\n    const lastReturnValue = lView[returnValueIndex];\n    return lastReturnValue === NO_CHANGE ? undefined : lastReturnValue;\n}\n/**\n * If the value of the provided exp has changed, calls the pure function to return\n * an updated value. Or if the value has not changed, returns cached value.\n *\n * @param {?} lView LView in which the function is being executed.\n * @param {?} bindingRoot Binding root index.\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn Function that returns an updated value\n * @param {?} exp Updated expression value\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n */\nfunction pureFunction1Internal(lView, bindingRoot, slotOffset, pureFn, exp, thisArg) {\n    /** @type {?} */\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated(lView, bindingIndex, exp) ?\n        updateBinding(lView, bindingIndex + 1, thisArg ? pureFn.call(thisArg, exp) : pureFn(exp)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 1);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param {?} lView LView in which the function is being executed.\n * @param {?} bindingRoot Binding root index.\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n */\nfunction pureFunction2Internal(lView, bindingRoot, slotOffset, pureFn, exp1, exp2, thisArg) {\n    /** @type {?} */\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated2(lView, bindingIndex, exp1, exp2) ?\n        updateBinding(lView, bindingIndex + 2, thisArg ? pureFn.call(thisArg, exp1, exp2) : pureFn(exp1, exp2)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 2);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param {?} lView LView in which the function is being executed.\n * @param {?} bindingRoot Binding root index.\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n */\nfunction pureFunction3Internal(lView, bindingRoot, slotOffset, pureFn, exp1, exp2, exp3, thisArg) {\n    /** @type {?} */\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated3(lView, bindingIndex, exp1, exp2, exp3) ?\n        updateBinding(lView, bindingIndex + 3, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3) : pureFn(exp1, exp2, exp3)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 3);\n}\n/**\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param {?} lView LView in which the function is being executed.\n * @param {?} bindingRoot Binding root index.\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn\n * @param {?} exp1\n * @param {?} exp2\n * @param {?} exp3\n * @param {?} exp4\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n *\n */\nfunction pureFunction4Internal(lView, bindingRoot, slotOffset, pureFn, exp1, exp2, exp3, exp4, thisArg) {\n    /** @type {?} */\n    const bindingIndex = bindingRoot + slotOffset;\n    return bindingUpdated4(lView, bindingIndex, exp1, exp2, exp3, exp4) ?\n        updateBinding(lView, bindingIndex + 4, thisArg ? pureFn.call(thisArg, exp1, exp2, exp3, exp4) : pureFn(exp1, exp2, exp3, exp4)) :\n        getPureFunctionReturnValue(lView, bindingIndex + 4);\n}\n/**\n * pureFunction instruction that can support any number of bindings.\n *\n * If the value of any provided exp has changed, calls the pure function to return\n * an updated value. Or if no values have changed, returns cached value.\n *\n * @param {?} lView LView in which the function is being executed.\n * @param {?} bindingRoot Binding root index.\n * @param {?} slotOffset the offset from binding root to the reserved slot\n * @param {?} pureFn A pure function that takes binding values and builds an object or array\n * containing those values.\n * @param {?} exps An array of binding values\n * @param {?=} thisArg Optional calling context of pureFn\n * @return {?} Updated or cached value\n */\nfunction pureFunctionVInternal(lView, bindingRoot, slotOffset, pureFn, exps, thisArg) {\n    /** @type {?} */\n    let bindingIndex = bindingRoot + slotOffset;\n    /** @type {?} */\n    let different = false;\n    for (let i = 0; i < exps.length; i++) {\n        bindingUpdated(lView, bindingIndex++, exps[i]) && (different = true);\n    }\n    return different ? updateBinding(lView, bindingIndex, pureFn.apply(thisArg, exps)) :\n        getPureFunctionReturnValue(lView, bindingIndex);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Create a pipe.\n *\n * \\@codeGenApi\n * @param {?} index Pipe index where the pipe will be stored.\n * @param {?} pipeName The name of the pipe\n * @return {?} T the instance of the pipe.\n *\n */\nfunction ɵɵpipe(index, pipeName) {\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    let pipeDef;\n    /** @type {?} */\n    const adjustedIndex = index + HEADER_OFFSET;\n    if (tView.firstCreatePass) {\n        pipeDef = getPipeDef$1(pipeName, tView.pipeRegistry);\n        tView.data[adjustedIndex] = pipeDef;\n        if (pipeDef.onDestroy) {\n            (tView.destroyHooks || (tView.destroyHooks = [])).push(adjustedIndex, pipeDef.onDestroy);\n        }\n    }\n    else {\n        pipeDef = (/** @type {?} */ (tView.data[adjustedIndex]));\n    }\n    /** @type {?} */\n    const pipeFactory = pipeDef.factory || (pipeDef.factory = getFactoryDef(pipeDef.type, true));\n    /** @type {?} */\n    const previousInjectImplementation = setInjectImplementation(ɵɵdirectiveInject);\n    // DI for pipes is supposed to behave like directives when placed on a component\n    // host node, which means that we have to disable access to `viewProviders`.\n    /** @type {?} */\n    const previousIncludeViewProviders = setIncludeViewProviders(false);\n    /** @type {?} */\n    const pipeInstance = pipeFactory();\n    setIncludeViewProviders(previousIncludeViewProviders);\n    setInjectImplementation(previousInjectImplementation);\n    store(tView, getLView(), index, pipeInstance);\n    return pipeInstance;\n}\n/**\n * Searches the pipe registry for a pipe with the given name. If one is found,\n * returns the pipe. Otherwise, an error is thrown because the pipe cannot be resolved.\n *\n * @param {?} name Name of pipe to resolve\n * @param {?} registry Full list of available pipes\n * @return {?} Matching PipeDef\n */\nfunction getPipeDef$1(name, registry) {\n    if (registry) {\n        for (let i = registry.length - 1; i >= 0; i--) {\n            /** @type {?} */\n            const pipeDef = registry[i];\n            if (name === pipeDef.name) {\n                return pipeDef;\n            }\n        }\n    }\n    throw new Error(`The pipe '${name}' could not be found!`);\n}\n/**\n * Invokes a pipe with 1 arguments.\n *\n * This instruction acts as a guard to {\\@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * \\@codeGenApi\n * @param {?} index Pipe index where the pipe was stored on creation.\n * @param {?} slotOffset the offset in the reserved slot space\n * @param {?} v1 1st argument to {\\@link PipeTransform#transform}.\n *\n * @return {?}\n */\nfunction ɵɵpipeBind1(index, slotOffset, v1) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const pipeInstance = load(lView, index);\n    return unwrapValue$1(lView, isPure(lView, index) ?\n        pureFunction1Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, pipeInstance) :\n        pipeInstance.transform(v1));\n}\n/**\n * Invokes a pipe with 2 arguments.\n *\n * This instruction acts as a guard to {\\@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * \\@codeGenApi\n * @param {?} index Pipe index where the pipe was stored on creation.\n * @param {?} slotOffset the offset in the reserved slot space\n * @param {?} v1 1st argument to {\\@link PipeTransform#transform}.\n * @param {?} v2 2nd argument to {\\@link PipeTransform#transform}.\n *\n * @return {?}\n */\nfunction ɵɵpipeBind2(index, slotOffset, v1, v2) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const pipeInstance = load(lView, index);\n    return unwrapValue$1(lView, isPure(lView, index) ?\n        pureFunction2Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, v2, pipeInstance) :\n        pipeInstance.transform(v1, v2));\n}\n/**\n * Invokes a pipe with 3 arguments.\n *\n * This instruction acts as a guard to {\\@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * \\@codeGenApi\n * @param {?} index Pipe index where the pipe was stored on creation.\n * @param {?} slotOffset the offset in the reserved slot space\n * @param {?} v1 1st argument to {\\@link PipeTransform#transform}.\n * @param {?} v2 2nd argument to {\\@link PipeTransform#transform}.\n * @param {?} v3 4rd argument to {\\@link PipeTransform#transform}.\n *\n * @return {?}\n */\nfunction ɵɵpipeBind3(index, slotOffset, v1, v2, v3) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const pipeInstance = load(lView, index);\n    return unwrapValue$1(lView, isPure(lView, index) ? pureFunction3Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, v2, v3, pipeInstance) :\n        pipeInstance.transform(v1, v2, v3));\n}\n/**\n * Invokes a pipe with 4 arguments.\n *\n * This instruction acts as a guard to {\\@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * \\@codeGenApi\n * @param {?} index Pipe index where the pipe was stored on creation.\n * @param {?} slotOffset the offset in the reserved slot space\n * @param {?} v1 1st argument to {\\@link PipeTransform#transform}.\n * @param {?} v2 2nd argument to {\\@link PipeTransform#transform}.\n * @param {?} v3 3rd argument to {\\@link PipeTransform#transform}.\n * @param {?} v4 4th argument to {\\@link PipeTransform#transform}.\n *\n * @return {?}\n */\nfunction ɵɵpipeBind4(index, slotOffset, v1, v2, v3, v4) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const pipeInstance = load(lView, index);\n    return unwrapValue$1(lView, isPure(lView, index) ? pureFunction4Internal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, v1, v2, v3, v4, pipeInstance) :\n        pipeInstance.transform(v1, v2, v3, v4));\n}\n/**\n * Invokes a pipe with variable number of arguments.\n *\n * This instruction acts as a guard to {\\@link PipeTransform#transform} invoking\n * the pipe only when an input to the pipe changes.\n *\n * \\@codeGenApi\n * @param {?} index Pipe index where the pipe was stored on creation.\n * @param {?} slotOffset the offset in the reserved slot space\n * @param {?} values Array of arguments to pass to {\\@link PipeTransform#transform} method.\n *\n * @return {?}\n */\nfunction ɵɵpipeBindV(index, slotOffset, values) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const pipeInstance = load(lView, index);\n    return unwrapValue$1(lView, isPure(lView, index) ?\n        pureFunctionVInternal(lView, getBindingRoot(), slotOffset, pipeInstance.transform, values, pipeInstance) :\n        pipeInstance.transform.apply(pipeInstance, values));\n}\n/**\n * @param {?} lView\n * @param {?} index\n * @return {?}\n */\nfunction isPure(lView, index) {\n    return ((/** @type {?} */ (lView[TVIEW].data[index + HEADER_OFFSET]))).pure;\n}\n/**\n * Unwrap the output of a pipe transformation.\n * In order to trick change detection into considering that the new value is always different from\n * the old one, the old value is overwritten by NO_CHANGE.\n *\n * @param {?} lView\n * @param {?} newValue the pipe transformation output.\n * @return {?}\n */\nfunction unwrapValue$1(lView, newValue) {\n    if (WrappedValue.isWrapped(newValue)) {\n        newValue = WrappedValue.unwrap(newValue);\n        // The NO_CHANGE value needs to be written at the index where the impacted binding value is\n        // stored\n        /** @type {?} */\n        const bindingToInvalidateIdx = getBindingIndex();\n        lView[bindingToInvalidateIdx] = NO_CHANGE;\n    }\n    return newValue;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/event_emitter.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Use in components with the `\\@Output` directive to emit custom events\n * synchronously or asynchronously, and register handlers for those events\n * by subscribing to an instance.\n *\n * \\@usageNotes\n *\n * Extends\n * [RxJS `Subject`](https://rxjs.dev/api/index/class/Subject)\n * for Angular by adding the `emit()` method.\n *\n * In the following example, a component defines two output properties\n * that create event emitters. When the title is clicked, the emitter\n * emits an open or close event to toggle the current visibility state.\n *\n * ```html\n * \\@Component({\n *   selector: 'zippy',\n *   template: `\n *   <div class=\"zippy\">\n *     <div (click)=\"toggle()\">Toggle</div>\n *     <div [hidden]=\"!visible\">\n *       <ng-content></ng-content>\n *     </div>\n *  </div>`})\n * export class Zippy {\n *   visible: boolean = true;\n * \\@Output() open: EventEmitter<any> = new EventEmitter();\n * \\@Output() close: EventEmitter<any> = new EventEmitter();\n *\n *   toggle() {\n *     this.visible = !this.visible;\n *     if (this.visible) {\n *       this.open.emit(null);\n *     } else {\n *       this.close.emit(null);\n *     }\n *   }\n * }\n * ```\n *\n * Access the event object with the `$event` argument passed to the output event\n * handler:\n *\n * ```html\n * <zippy (open)=\"onOpen($event)\" (close)=\"onClose($event)\"></zippy>\n * ```\n *\n * @see [Observables in Angular](guide/observables-in-angular)\n * \\@publicApi\n * @template T\n */\nclass EventEmitter extends Subject {\n    // tslint:disable-line\n    /**\n     * Creates an instance of this class that can\n     * deliver events synchronously or asynchronously.\n     *\n     * @param {?=} isAsync When true, deliver events asynchronously.\n     *\n     */\n    constructor(isAsync = false) {\n        super();\n        this.__isAsync = isAsync;\n    }\n    /**\n     * Emits an event containing a given value.\n     * @param {?=} value The value to emit.\n     * @return {?}\n     */\n    emit(value) {\n        super.next(value);\n    }\n    /**\n     * Registers handlers for events emitted by this instance.\n     * @param {?=} generatorOrNext When supplied, a custom handler for emitted events.\n     * @param {?=} error When supplied, a custom handler for an error notification\n     * from this emitter.\n     * @param {?=} complete When supplied, a custom handler for a completion\n     * notification from this emitter.\n     * @return {?}\n     */\n    subscribe(generatorOrNext, error, complete) {\n        /** @type {?} */\n        let schedulerFn;\n        /** @type {?} */\n        let errorFn = (/**\n         * @param {?} err\n         * @return {?}\n         */\n        (err) => null);\n        /** @type {?} */\n        let completeFn = (/**\n         * @return {?}\n         */\n        () => null);\n        if (generatorOrNext && typeof generatorOrNext === 'object') {\n            schedulerFn = this.__isAsync ? (/**\n             * @param {?} value\n             * @return {?}\n             */\n            (value) => {\n                setTimeout((/**\n                 * @return {?}\n                 */\n                () => generatorOrNext.next(value)));\n            }) : (/**\n             * @param {?} value\n             * @return {?}\n             */\n            (value) => {\n                generatorOrNext.next(value);\n            });\n            if (generatorOrNext.error) {\n                errorFn = this.__isAsync ? (/**\n                 * @param {?} err\n                 * @return {?}\n                 */\n                (err) => {\n                    setTimeout((/**\n                     * @return {?}\n                     */\n                    () => generatorOrNext.error(err)));\n                }) : (/**\n                 * @param {?} err\n                 * @return {?}\n                 */\n                (err) => {\n                    generatorOrNext.error(err);\n                });\n            }\n            if (generatorOrNext.complete) {\n                completeFn = this.__isAsync ? (/**\n                 * @return {?}\n                 */\n                () => {\n                    setTimeout((/**\n                     * @return {?}\n                     */\n                    () => generatorOrNext.complete()));\n                }) : (/**\n                 * @return {?}\n                 */\n                () => {\n                    generatorOrNext.complete();\n                });\n            }\n        }\n        else {\n            schedulerFn = this.__isAsync ? (/**\n             * @param {?} value\n             * @return {?}\n             */\n            (value) => {\n                setTimeout((/**\n                 * @return {?}\n                 */\n                () => generatorOrNext(value)));\n            }) : (/**\n             * @param {?} value\n             * @return {?}\n             */\n            (value) => {\n                generatorOrNext(value);\n            });\n            if (error) {\n                errorFn = this.__isAsync ? (/**\n                 * @param {?} err\n                 * @return {?}\n                 */\n                (err) => {\n                    setTimeout((/**\n                     * @return {?}\n                     */\n                    () => error(err)));\n                }) : (/**\n                 * @param {?} err\n                 * @return {?}\n                 */\n                (err) => {\n                    error(err);\n                });\n            }\n            if (complete) {\n                completeFn = this.__isAsync ? (/**\n                 * @return {?}\n                 */\n                () => {\n                    setTimeout((/**\n                     * @return {?}\n                     */\n                    () => complete()));\n                }) : (/**\n                 * @return {?}\n                 */\n                () => {\n                    complete();\n                });\n            }\n        }\n        /** @type {?} */\n        const sink = super.subscribe(schedulerFn, errorFn, completeFn);\n        if (generatorOrNext instanceof Subscription) {\n            generatorOrNext.add(sink);\n        }\n        return sink;\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    EventEmitter.prototype.__isAsync;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/query_list.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @template T\n * @this {?}\n * @return {?}\n */\nfunction symbolIterator() {\n    return ((/** @type {?} */ (((/** @type {?} */ ((/** @type {?} */ (this)))))._results)))[getSymbolIterator()]();\n}\n/**\n * An unmodifiable list of items that Angular keeps up to date when the state\n * of the application changes.\n *\n * The type of object that {\\@link ViewChildren}, {\\@link ContentChildren}, and {\\@link QueryList}\n * provide.\n *\n * Implements an iterable interface, therefore it can be used in both ES6\n * javascript `for (var i of items)` loops as well as in Angular templates with\n * `*ngFor=\"let i of myList\"`.\n *\n * Changes can be observed by subscribing to the changes `Observable`.\n *\n * NOTE: In the future this class will implement an `Observable` interface.\n *\n * \\@usageNotes\n * ### Example\n * ```typescript\n * \\@Component({...})\n * class Container {\n * \\@ViewChildren(Item) items:QueryList<Item>;\n * }\n * ```\n *\n * \\@publicApi\n * @template T\n */\nclass QueryList {\n    constructor() {\n        this.dirty = true;\n        this._results = [];\n        this.changes = new EventEmitter();\n        this.length = 0;\n        // This function should be declared on the prototype, but doing so there will cause the class\n        // declaration to have side-effects and become not tree-shakable. For this reason we do it in\n        // the constructor.\n        // [getSymbolIterator()](): Iterator<T> { ... }\n        /** @type {?} */\n        const symbol = getSymbolIterator();\n        /** @type {?} */\n        const proto = (/** @type {?} */ (QueryList.prototype));\n        if (!proto[symbol])\n            proto[symbol] = symbolIterator;\n    }\n    /**\n     * See\n     * [Array.map](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map)\n     * @template U\n     * @param {?} fn\n     * @return {?}\n     */\n    map(fn) {\n        return this._results.map(fn);\n    }\n    /**\n     * See\n     * [Array.filter](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter)\n     * @param {?} fn\n     * @return {?}\n     */\n    filter(fn) {\n        return this._results.filter(fn);\n    }\n    /**\n     * See\n     * [Array.find](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find)\n     * @param {?} fn\n     * @return {?}\n     */\n    find(fn) {\n        return this._results.find(fn);\n    }\n    /**\n     * See\n     * [Array.reduce](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/reduce)\n     * @template U\n     * @param {?} fn\n     * @param {?} init\n     * @return {?}\n     */\n    reduce(fn, init) {\n        return this._results.reduce(fn, init);\n    }\n    /**\n     * See\n     * [Array.forEach](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/forEach)\n     * @param {?} fn\n     * @return {?}\n     */\n    forEach(fn) {\n        this._results.forEach(fn);\n    }\n    /**\n     * See\n     * [Array.some](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/some)\n     * @param {?} fn\n     * @return {?}\n     */\n    some(fn) {\n        return this._results.some(fn);\n    }\n    /**\n     * Returns a copy of the internal results list as an Array.\n     * @return {?}\n     */\n    toArray() {\n        return this._results.slice();\n    }\n    /**\n     * @return {?}\n     */\n    toString() {\n        return this._results.toString();\n    }\n    /**\n     * Updates the stored data of the query list, and resets the `dirty` flag to `false`, so that\n     * on change detection, it will not notify of changes to the queries, unless a new change\n     * occurs.\n     *\n     * @param {?} resultsTree The query results to store\n     * @return {?}\n     */\n    reset(resultsTree) {\n        this._results = flatten(resultsTree);\n        ((/** @type {?} */ (this))).dirty = false;\n        ((/** @type {?} */ (this))).length = this._results.length;\n        ((/** @type {?} */ (this))).last = this._results[this.length - 1];\n        ((/** @type {?} */ (this))).first = this._results[0];\n    }\n    /**\n     * Triggers a change event by emitting on the `changes` {\\@link EventEmitter}.\n     * @return {?}\n     */\n    notifyOnChanges() {\n        ((/** @type {?} */ (this.changes))).emit(this);\n    }\n    /**\n     * internal\n     * @return {?}\n     */\n    setDirty() {\n        ((/** @type {?} */ (this))).dirty = true;\n    }\n    /**\n     * internal\n     * @return {?}\n     */\n    destroy() {\n        ((/** @type {?} */ (this.changes))).complete();\n        ((/** @type {?} */ (this.changes))).unsubscribe();\n    }\n}\nif (false) {\n    /** @type {?} */\n    QueryList.prototype.dirty;\n    /**\n     * @type {?}\n     * @private\n     */\n    QueryList.prototype._results;\n    /** @type {?} */\n    QueryList.prototype.changes;\n    /** @type {?} */\n    QueryList.prototype.length;\n    /** @type {?} */\n    QueryList.prototype.first;\n    /** @type {?} */\n    QueryList.prototype.last;\n    /* Skipping unnamed member:\n    [Symbol.iterator]!: () => Iterator<T>;*/\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/definition.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst RenderFlags = {\n    /* Whether to run the creation block (e.g. create elements and directives) */\n    Create: 1,\n    /* Whether to run the update block (e.g. refresh bindings) */\n    Update: 2,\n};\n/**\n * A subclass of `Type` which has a static `ɵcmp`:`ComponentDef` field making it\n * consumable for rendering.\n * @record\n * @template T\n */\nfunction ComponentType() { }\nif (false) {\n    /** @type {?} */\n    ComponentType.prototype.ɵcmp;\n}\n/**\n * A subclass of `Type` which has a static `ɵdir`:`DirectiveDef` field making it\n * consumable for rendering.\n * @record\n * @template T\n */\nfunction DirectiveType() { }\nif (false) {\n    /** @type {?} */\n    DirectiveType.prototype.ɵdir;\n    /** @type {?} */\n    DirectiveType.prototype.ɵfac;\n}\n/**\n * A subclass of `Type` which has a static `ɵpipe`:`PipeDef` field making it\n * consumable for rendering.\n * @record\n * @template T\n */\nfunction PipeType() { }\nif (false) {\n    /** @type {?} */\n    PipeType.prototype.ɵpipe;\n}\n/**\n * Runtime link information for Directives.\n *\n * This is an internal data structure used by the render to link\n * directives into templates.\n *\n * NOTE: Always use `defineDirective` function to create this object,\n * never create the object directly since the shape of this object\n * can change between versions.\n *\n * @param Selector type metadata specifying the selector of the directive or component\n *\n * See: {\\@link defineDirective}\n * @record\n * @template T\n */\nfunction DirectiveDef() { }\nif (false) {\n    /**\n     * A dictionary mapping the inputs' minified property names to their public API names, which\n     * are their aliases if any, or their original unminified property names\n     * (as in `\\@Input('alias') propertyName: any;`).\n     * @type {?}\n     */\n    DirectiveDef.prototype.inputs;\n    /**\n     * @deprecated This is only here because `NgOnChanges` incorrectly uses declared name instead of\n     * public or minified name.\n     * @type {?}\n     */\n    DirectiveDef.prototype.declaredInputs;\n    /**\n     * A dictionary mapping the outputs' minified property names to their public API names, which\n     * are their aliases if any, or their original unminified property names\n     * (as in `\\@Output('alias') propertyName: any;`).\n     * @type {?}\n     */\n    DirectiveDef.prototype.outputs;\n    /**\n     * Function to create and refresh content queries associated with a given directive.\n     * @type {?}\n     */\n    DirectiveDef.prototype.contentQueries;\n    /**\n     * Query-related instructions for a directive. Note that while directives don't have a\n     * view and as such view queries won't necessarily do anything, there might be\n     * components that extend the directive.\n     * @type {?}\n     */\n    DirectiveDef.prototype.viewQuery;\n    /**\n     * Refreshes host bindings on the associated directive.\n     * @type {?}\n     */\n    DirectiveDef.prototype.hostBindings;\n    /**\n     * The number of bindings in this directive `hostBindings` (including pure fn bindings).\n     *\n     * Used to calculate the length of the component's LView array, so we\n     * can pre-fill the array and set the host binding start index.\n     * @type {?}\n     */\n    DirectiveDef.prototype.hostVars;\n    /**\n     * Assign static attribute values to a host element.\n     *\n     * This property will assign static attribute values as well as class and style\n     * values to a host element. Since attribute values can consist of different types of values, the\n     * `hostAttrs` array must include the values in the following format:\n     *\n     * attrs = [\n     *   // static attributes (like `title`, `name`, `id`...)\n     *   attr1, value1, attr2, value,\n     *\n     *   // a single namespace value (like `x:id`)\n     *   NAMESPACE_MARKER, namespaceUri1, name1, value1,\n     *\n     *   // another single namespace value (like `x:name`)\n     *   NAMESPACE_MARKER, namespaceUri2, name2, value2,\n     *\n     *   // a series of CSS classes that will be applied to the element (no spaces)\n     *   CLASSES_MARKER, class1, class2, class3,\n     *\n     *   // a series of CSS styles (property + value) that will be applied to the element\n     *   STYLES_MARKER, prop1, value1, prop2, value2\n     * ]\n     *\n     * All non-class and non-style attributes must be defined at the start of the list\n     * first before all class and style values are set. When there is a change in value\n     * type (like when classes and styles are introduced) a marker must be used to separate\n     * the entries. The marker values themselves are set via entries found in the\n     * [AttributeMarker] enum.\n     * @type {?}\n     */\n    DirectiveDef.prototype.hostAttrs;\n    /**\n     * Token representing the directive. Used by DI.\n     * @type {?}\n     */\n    DirectiveDef.prototype.type;\n    /**\n     * Function that resolves providers and publishes them into the DI system.\n     * @type {?}\n     */\n    DirectiveDef.prototype.providersResolver;\n    /**\n     * The selectors that will be used to match nodes to this directive.\n     * @type {?}\n     */\n    DirectiveDef.prototype.selectors;\n    /**\n     * Name under which the directive is exported (for use with local references in template)\n     * @type {?}\n     */\n    DirectiveDef.prototype.exportAs;\n    /**\n     * Factory function used to create a new directive instance. Will be null initially.\n     * Populated when the factory is first requested by directive instantiation logic.\n     * @type {?}\n     */\n    DirectiveDef.prototype.factory;\n    /** @type {?} */\n    DirectiveDef.prototype.onChanges;\n    /** @type {?} */\n    DirectiveDef.prototype.onInit;\n    /** @type {?} */\n    DirectiveDef.prototype.doCheck;\n    /** @type {?} */\n    DirectiveDef.prototype.afterContentInit;\n    /** @type {?} */\n    DirectiveDef.prototype.afterContentChecked;\n    /** @type {?} */\n    DirectiveDef.prototype.afterViewInit;\n    /** @type {?} */\n    DirectiveDef.prototype.afterViewChecked;\n    /** @type {?} */\n    DirectiveDef.prototype.onDestroy;\n    /**\n     * The features applied to this directive\n     * @type {?}\n     */\n    DirectiveDef.prototype.features;\n    /** @type {?} */\n    DirectiveDef.prototype.setInput;\n}\n/**\n * Runtime link information for Components.\n *\n * This is an internal data structure used by the render to link\n * components into templates.\n *\n * NOTE: Always use `defineComponent` function to create this object,\n * never create the object directly since the shape of this object\n * can change between versions.\n *\n * See: {\\@link defineComponent}\n * @record\n * @template T\n */\nfunction ComponentDef() { }\nif (false) {\n    /**\n     * Runtime unique component ID.\n     * @type {?}\n     */\n    ComponentDef.prototype.id;\n    /**\n     * The View template of the component.\n     * @type {?}\n     */\n    ComponentDef.prototype.template;\n    /**\n     * Constants associated with the component's view.\n     * @type {?}\n     */\n    ComponentDef.prototype.consts;\n    /**\n     * An array of `ngContent[selector]` values that were found in the template.\n     * @type {?|undefined}\n     */\n    ComponentDef.prototype.ngContentSelectors;\n    /**\n     * A set of styles that the component needs to be present for component to render correctly.\n     * @type {?}\n     */\n    ComponentDef.prototype.styles;\n    /**\n     * The number of nodes, local refs, and pipes in this component template.\n     *\n     * Used to calculate the length of the component's LView array, so we\n     * can pre-fill the array and set the binding start index.\n     * @type {?}\n     */\n    ComponentDef.prototype.decls;\n    /**\n     * The number of bindings in this component template (including pure fn bindings).\n     *\n     * Used to calculate the length of the component's LView array, so we\n     * can pre-fill the array and set the host binding start index.\n     * @type {?}\n     */\n    ComponentDef.prototype.vars;\n    /**\n     * Query-related instructions for a component.\n     * @type {?}\n     */\n    ComponentDef.prototype.viewQuery;\n    /**\n     * The view encapsulation type, which determines how styles are applied to\n     * DOM elements. One of\n     * - `Emulated` (default): Emulate native scoping of styles.\n     * - `Native`: Use the native encapsulation mechanism of the renderer.\n     * - `ShadowDom`: Use modern [ShadowDOM](https://w3c.github.io/webcomponents/spec/shadow/) and\n     *   create a ShadowRoot for component's host element.\n     * - `None`: Do not provide any template or style encapsulation.\n     * @type {?}\n     */\n    ComponentDef.prototype.encapsulation;\n    /**\n     * Defines arbitrary developer-defined data to be stored on a renderer instance.\n     * This is useful for renderers that delegate to other renderers.\n     * @type {?}\n     */\n    ComponentDef.prototype.data;\n    /**\n     * Whether or not this component's ChangeDetectionStrategy is OnPush\n     * @type {?}\n     */\n    ComponentDef.prototype.onPush;\n    /**\n     * Registry of directives and components that may be found in this view.\n     *\n     * The property is either an array of `DirectiveDef`s or a function which returns the array of\n     * `DirectiveDef`s. The function is necessary to be able to support forward declarations.\n     * @type {?}\n     */\n    ComponentDef.prototype.directiveDefs;\n    /**\n     * Registry of pipes that may be found in this view.\n     *\n     * The property is either an array of `PipeDefs`s or a function which returns the array of\n     * `PipeDefs`s. The function is necessary to be able to support forward declarations.\n     * @type {?}\n     */\n    ComponentDef.prototype.pipeDefs;\n    /**\n     * The set of schemas that declare elements to be allowed in the component's template.\n     * @type {?}\n     */\n    ComponentDef.prototype.schemas;\n    /**\n     * Ivy runtime uses this place to store the computed tView for the component. This gets filled on\n     * the first run of component.\n     * @type {?}\n     */\n    ComponentDef.prototype.tView;\n    /**\n     * Used to store the result of `noSideEffects` function so that it is not removed by closure\n     * compiler. The property should never be read.\n     * @type {?|undefined}\n     */\n    ComponentDef.prototype._;\n}\n/**\n * Runtime link information for Pipes.\n *\n * This is an internal data structure used by the renderer to link\n * pipes into templates.\n *\n * NOTE: Always use `definePipe` function to create this object,\n * never create the object directly since the shape of this object\n * can change between versions.\n *\n * See: {\\@link definePipe}\n * @record\n * @template T\n */\nfunction PipeDef() { }\nif (false) {\n    /**\n     * Token representing the pipe.\n     * @type {?}\n     */\n    PipeDef.prototype.type;\n    /**\n     * Pipe name.\n     *\n     * Used to resolve pipe in templates.\n     * @type {?}\n     */\n    PipeDef.prototype.name;\n    /**\n     * Factory function used to create a new pipe instance. Will be null initially.\n     * Populated when the factory is first requested by pipe instantiation logic.\n     * @type {?}\n     */\n    PipeDef.prototype.factory;\n    /**\n     * Whether or not the pipe is pure.\n     *\n     * Pure pipes result only depends on the pipe input and not on internal\n     * state of the pipe.\n     * @type {?}\n     */\n    PipeDef.prototype.pure;\n    /** @type {?} */\n    PipeDef.prototype.onDestroy;\n}\n/**\n * @record\n */\nfunction DirectiveDefFeature() { }\nif (false) {\n    /**\n     * Marks a feature as something that {\\@link InheritDefinitionFeature} will execute\n     * during inheritance.\n     *\n     * NOTE: DO NOT SET IN ROOT OF MODULE! Doing so will result in tree-shakers/bundlers\n     * identifying the change as a side effect, and the feature will be included in\n     * every bundle.\n     * @type {?|undefined}\n     */\n    DirectiveDefFeature.prototype.ngInherit;\n    /* Skipping unhandled member: <T>(directiveDef: DirectiveDef<T>): void;*/\n}\n/**\n * @record\n */\nfunction ComponentDefFeature() { }\nif (false) {\n    /**\n     * Marks a feature as something that {\\@link InheritDefinitionFeature} will execute\n     * during inheritance.\n     *\n     * NOTE: DO NOT SET IN ROOT OF MODULE! Doing so will result in tree-shakers/bundlers\n     * identifying the change as a side effect, and the feature will be included in\n     * every bundle.\n     * @type {?|undefined}\n     */\n    ComponentDefFeature.prototype.ngInherit;\n    /* Skipping unhandled member: <T>(componentDef: ComponentDef<T>): void;*/\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$7 = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/interfaces/query.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * An object representing query metadata extracted from query annotations.\n * @record\n */\nfunction TQueryMetadata() { }\nif (false) {\n    /** @type {?} */\n    TQueryMetadata.prototype.predicate;\n    /** @type {?} */\n    TQueryMetadata.prototype.descendants;\n    /** @type {?} */\n    TQueryMetadata.prototype.read;\n    /** @type {?} */\n    TQueryMetadata.prototype.isStatic;\n}\n/**\n * TQuery objects represent all the query-related data that remain the same from one view instance\n * to another and can be determined on the very first template pass. Most notably TQuery holds all\n * the matches for a given view.\n * @record\n */\nfunction TQuery() { }\nif (false) {\n    /**\n     * Query metadata extracted from query annotations.\n     * @type {?}\n     */\n    TQuery.prototype.metadata;\n    /**\n     * Index of a query in a declaration view in case of queries propagated to en embedded view, -1\n     * for queries declared in a given view. We are storing this index so we can find a parent query\n     * to clone for an embedded view (when an embedded view is created).\n     * @type {?}\n     */\n    TQuery.prototype.indexInDeclarationView;\n    /**\n     * Matches collected on the first template pass. Each match is a pair of:\n     * - TNode index;\n     * - match index;\n     *\n     * A TNode index can be either:\n     * - a positive number (the most common case) to indicate a matching TNode;\n     * - a negative number to indicate that a given query is crossing a <ng-template> element and\n     * results from views created based on TemplateRef should be inserted at this place.\n     *\n     * A match index is a number used to find an actual value (for a given node) when query results\n     * are materialized. This index can have one of the following values:\n     * - -2 - indicates that we need to read a special token (TemplateRef, ViewContainerRef etc.);\n     * - -1 - indicates that we need to read a default value based on the node type (TemplateRef for\n     * ng-template and ElementRef for other elements);\n     * - a positive number - index of an injectable to be read from the element injector.\n     * @type {?}\n     */\n    TQuery.prototype.matches;\n    /**\n     * A flag indicating if a given query crosses an <ng-template> element. This flag exists for\n     * performance reasons: we can notice that queries not crossing any <ng-template> elements will\n     * have matches from a given view only (and adapt processing accordingly).\n     * @type {?}\n     */\n    TQuery.prototype.crossesNgTemplate;\n    /**\n     * A method call when a given query is crossing an element (or element container). This is where a\n     * given TNode is matched against a query predicate.\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    TQuery.prototype.elementStart = function (tView, tNode) { };\n    /**\n     * A method called when processing the elementEnd instruction - this is mostly useful to determine\n     * if a given content query should match any nodes past this point.\n     * @param {?} tNode\n     * @return {?}\n     */\n    TQuery.prototype.elementEnd = function (tNode) { };\n    /**\n     * A method called when processing the template instruction. This is where a\n     * given TContainerNode is matched against a query predicate.\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    TQuery.prototype.template = function (tView, tNode) { };\n    /**\n     * A query-related method called when an embedded TView is created based on the content of a\n     * <ng-template> element. We call this method to determine if a given query should be propagated\n     * to the embedded view and if so - return a cloned TQuery for this embedded view.\n     * @param {?} tNode\n     * @param {?} childQueryIndex\n     * @return {?}\n     */\n    TQuery.prototype.embeddedTView = function (tNode, childQueryIndex) { };\n}\n/**\n * TQueries represent a collection of individual TQuery objects tracked in a given view. Most of the\n * methods on this interface are simple proxy methods to the corresponding functionality on TQuery.\n * @record\n */\nfunction TQueries() { }\nif (false) {\n    /**\n     * Returns the number of queries tracked in a given view.\n     * @type {?}\n     */\n    TQueries.prototype.length;\n    /**\n     * Adds a new TQuery to a collection of queries tracked in a given view.\n     * @param {?} tQuery\n     * @return {?}\n     */\n    TQueries.prototype.track = function (tQuery) { };\n    /**\n     * Returns a TQuery instance for at the given index  in the queries array.\n     * @param {?} index\n     * @return {?}\n     */\n    TQueries.prototype.getByIndex = function (index) { };\n    /**\n     * A proxy method that iterates over all the TQueries in a given TView and calls the corresponding\n     * `elementStart` on each and every TQuery.\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    TQueries.prototype.elementStart = function (tView, tNode) { };\n    /**\n     * A proxy method that iterates over all the TQueries in a given TView and calls the corresponding\n     * `elementEnd` on each and every TQuery.\n     * @param {?} tNode\n     * @return {?}\n     */\n    TQueries.prototype.elementEnd = function (tNode) { };\n    /**\n     * A proxy method that iterates over all the TQueries in a given TView and calls the corresponding\n     * `template` on each and every TQuery.\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    TQueries.prototype.template = function (tView, tNode) { };\n    /**\n     * A proxy method that iterates over all the TQueries in a given TView and calls the corresponding\n     * `embeddedTView` on each and every TQuery.\n     * @param {?} tNode\n     * @return {?}\n     */\n    TQueries.prototype.embeddedTView = function (tNode) { };\n}\n/**\n * An interface that represents query-related information specific to a view instance. Most notably\n * it contains:\n * - materialized query matches;\n * - a pointer to a QueryList where materialized query results should be reported.\n * @record\n * @template T\n */\nfunction LQuery() { }\nif (false) {\n    /**\n     * Materialized query matches for a given view only (!). Results are initialized lazily so the\n     * array of matches is set to `null` initially.\n     * @type {?}\n     */\n    LQuery.prototype.matches;\n    /**\n     * A QueryList where materialized query results should be reported.\n     * @type {?}\n     */\n    LQuery.prototype.queryList;\n    /**\n     * Clones an LQuery for an embedded view. A cloned query shares the same `QueryList` but has a\n     * separate collection of materialized matches.\n     * @return {?}\n     */\n    LQuery.prototype.clone = function () { };\n    /**\n     * Called when an embedded view, impacting results of this query, is inserted or removed.\n     * @return {?}\n     */\n    LQuery.prototype.setDirty = function () { };\n}\n/**\n * lQueries represent a collection of individual LQuery objects tracked in a given view.\n * @record\n */\nfunction LQueries() { }\nif (false) {\n    /**\n     * A collection of queries tracked in a given view.\n     * @type {?}\n     */\n    LQueries.prototype.queries;\n    /**\n     * A method called when a new embedded view is created. As a result a set of LQueries applicable\n     * for a new embedded view is instantiated (cloned) from the declaration view.\n     * @param {?} tView\n     * @return {?}\n     */\n    LQueries.prototype.createEmbeddedView = function (tView) { };\n    /**\n     * A method called when an embedded view is inserted into a container. As a result all impacted\n     * `LQuery` objects (and associated `QueryList`) are marked as dirty.\n     * @param {?} tView\n     * @return {?}\n     */\n    LQueries.prototype.insertView = function (tView) { };\n    /**\n     * A method called when an embedded view is detached from a container. As a result all impacted\n     * `LQuery` objects (and associated `QueryList`) are marked as dirty.\n     * @param {?} tView\n     * @return {?}\n     */\n    LQueries.prototype.detachView = function (tView) { };\n}\n// Note: This hack is necessary so we don't erroneously get a circular dependency\n// failure based on types.\n/** @type {?} */\nconst unusedValueExportToPlacateAjd$8 = 1;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/query.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst unusedValueToPlacateAjd$2 = unusedValueExportToPlacateAjd$7 + unusedValueExportToPlacateAjd$3 + unusedValueExportToPlacateAjd$4 + unusedValueExportToPlacateAjd$8;\n/**\n * @template T\n */\nclass LQuery_ {\n    /**\n     * @param {?} queryList\n     */\n    constructor(queryList) {\n        this.queryList = queryList;\n        this.matches = null;\n    }\n    /**\n     * @return {?}\n     */\n    clone() {\n        return new LQuery_(this.queryList);\n    }\n    /**\n     * @return {?}\n     */\n    setDirty() {\n        this.queryList.setDirty();\n    }\n}\nif (false) {\n    /** @type {?} */\n    LQuery_.prototype.matches;\n    /** @type {?} */\n    LQuery_.prototype.queryList;\n}\nclass LQueries_ {\n    /**\n     * @param {?=} queries\n     */\n    constructor(queries = []) {\n        this.queries = queries;\n    }\n    /**\n     * @param {?} tView\n     * @return {?}\n     */\n    createEmbeddedView(tView) {\n        /** @type {?} */\n        const tQueries = tView.queries;\n        if (tQueries !== null) {\n            /** @type {?} */\n            const noOfInheritedQueries = tView.contentQueries !== null ? tView.contentQueries[0] : tQueries.length;\n            /** @type {?} */\n            const viewLQueries = [];\n            // An embedded view has queries propagated from a declaration view at the beginning of the\n            // TQueries collection and up until a first content query declared in the embedded view. Only\n            // propagated LQueries are created at this point (LQuery corresponding to declared content\n            // queries will be instantiated from the content query instructions for each directive).\n            for (let i = 0; i < noOfInheritedQueries; i++) {\n                /** @type {?} */\n                const tQuery = tQueries.getByIndex(i);\n                /** @type {?} */\n                const parentLQuery = this.queries[tQuery.indexInDeclarationView];\n                viewLQueries.push(parentLQuery.clone());\n            }\n            return new LQueries_(viewLQueries);\n        }\n        return null;\n    }\n    /**\n     * @param {?} tView\n     * @return {?}\n     */\n    insertView(tView) {\n        this.dirtyQueriesWithMatches(tView);\n    }\n    /**\n     * @param {?} tView\n     * @return {?}\n     */\n    detachView(tView) {\n        this.dirtyQueriesWithMatches(tView);\n    }\n    /**\n     * @private\n     * @param {?} tView\n     * @return {?}\n     */\n    dirtyQueriesWithMatches(tView) {\n        for (let i = 0; i < this.queries.length; i++) {\n            if (getTQuery(tView, i).matches !== null) {\n                this.queries[i].setDirty();\n            }\n        }\n    }\n}\nif (false) {\n    /** @type {?} */\n    LQueries_.prototype.queries;\n}\nclass TQueryMetadata_ {\n    /**\n     * @param {?} predicate\n     * @param {?} descendants\n     * @param {?} isStatic\n     * @param {?=} read\n     */\n    constructor(predicate, descendants, isStatic, read = null) {\n        this.predicate = predicate;\n        this.descendants = descendants;\n        this.isStatic = isStatic;\n        this.read = read;\n    }\n}\nif (false) {\n    /** @type {?} */\n    TQueryMetadata_.prototype.predicate;\n    /** @type {?} */\n    TQueryMetadata_.prototype.descendants;\n    /** @type {?} */\n    TQueryMetadata_.prototype.isStatic;\n    /** @type {?} */\n    TQueryMetadata_.prototype.read;\n}\nclass TQueries_ {\n    /**\n     * @param {?=} queries\n     */\n    constructor(queries = []) {\n        this.queries = queries;\n    }\n    /**\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    elementStart(tView, tNode) {\n        ngDevMode &&\n            assertFirstCreatePass(tView, 'Queries should collect results on the first template pass only');\n        for (let i = 0; i < this.queries.length; i++) {\n            this.queries[i].elementStart(tView, tNode);\n        }\n    }\n    /**\n     * @param {?} tNode\n     * @return {?}\n     */\n    elementEnd(tNode) {\n        for (let i = 0; i < this.queries.length; i++) {\n            this.queries[i].elementEnd(tNode);\n        }\n    }\n    /**\n     * @param {?} tNode\n     * @return {?}\n     */\n    embeddedTView(tNode) {\n        /** @type {?} */\n        let queriesForTemplateRef = null;\n        for (let i = 0; i < this.length; i++) {\n            /** @type {?} */\n            const childQueryIndex = queriesForTemplateRef !== null ? queriesForTemplateRef.length : 0;\n            /** @type {?} */\n            const tqueryClone = this.getByIndex(i).embeddedTView(tNode, childQueryIndex);\n            if (tqueryClone) {\n                tqueryClone.indexInDeclarationView = i;\n                if (queriesForTemplateRef !== null) {\n                    queriesForTemplateRef.push(tqueryClone);\n                }\n                else {\n                    queriesForTemplateRef = [tqueryClone];\n                }\n            }\n        }\n        return queriesForTemplateRef !== null ? new TQueries_(queriesForTemplateRef) : null;\n    }\n    /**\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    template(tView, tNode) {\n        ngDevMode &&\n            assertFirstCreatePass(tView, 'Queries should collect results on the first template pass only');\n        for (let i = 0; i < this.queries.length; i++) {\n            this.queries[i].template(tView, tNode);\n        }\n    }\n    /**\n     * @param {?} index\n     * @return {?}\n     */\n    getByIndex(index) {\n        ngDevMode && assertDataInRange(this.queries, index);\n        return this.queries[index];\n    }\n    /**\n     * @return {?}\n     */\n    get length() {\n        return this.queries.length;\n    }\n    /**\n     * @param {?} tquery\n     * @return {?}\n     */\n    track(tquery) {\n        this.queries.push(tquery);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    TQueries_.prototype.queries;\n}\nclass TQuery_ {\n    /**\n     * @param {?} metadata\n     * @param {?=} nodeIndex\n     */\n    constructor(metadata, nodeIndex = -1) {\n        this.metadata = metadata;\n        this.matches = null;\n        this.indexInDeclarationView = -1;\n        this.crossesNgTemplate = false;\n        /**\n         * A flag indicating if a given query still applies to nodes it is crossing. We use this flag\n         * (alongside with _declarationNodeIndex) to know when to stop applying content queries to\n         * elements in a template.\n         */\n        this._appliesToNextNode = true;\n        this._declarationNodeIndex = nodeIndex;\n    }\n    /**\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    elementStart(tView, tNode) {\n        if (this.isApplyingToNode(tNode)) {\n            this.matchTNode(tView, tNode);\n        }\n    }\n    /**\n     * @param {?} tNode\n     * @return {?}\n     */\n    elementEnd(tNode) {\n        if (this._declarationNodeIndex === tNode.index) {\n            this._appliesToNextNode = false;\n        }\n    }\n    /**\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    template(tView, tNode) {\n        this.elementStart(tView, tNode);\n    }\n    /**\n     * @param {?} tNode\n     * @param {?} childQueryIndex\n     * @return {?}\n     */\n    embeddedTView(tNode, childQueryIndex) {\n        if (this.isApplyingToNode(tNode)) {\n            this.crossesNgTemplate = true;\n            // A marker indicating a `<ng-template>` element (a placeholder for query results from\n            // embedded views created based on this `<ng-template>`).\n            this.addMatch(-tNode.index, childQueryIndex);\n            return new TQuery_(this.metadata);\n        }\n        return null;\n    }\n    /**\n     * @private\n     * @param {?} tNode\n     * @return {?}\n     */\n    isApplyingToNode(tNode) {\n        if (this._appliesToNextNode && this.metadata.descendants === false) {\n            /** @type {?} */\n            const declarationNodeIdx = this._declarationNodeIndex;\n            /** @type {?} */\n            let parent = tNode.parent;\n            // Determine if a given TNode is a \"direct\" child of a node on which a content query was\n            // declared (only direct children of query's host node can match with the descendants: false\n            // option). There are 3 main use-case / conditions to consider here:\n            // - <needs-target><i #target></i></needs-target>: here <i #target> parent node is a query\n            // host node;\n            // - <needs-target><ng-template [ngIf]=\"true\"><i #target></i></ng-template></needs-target>:\n            // here <i #target> parent node is null;\n            // - <needs-target><ng-container><i #target></i></ng-container></needs-target>: here we need\n            // to go past `<ng-container>` to determine <i #target> parent node (but we shouldn't traverse\n            // up past the query's host node!).\n            while (parent !== null && parent.type === 4 /* ElementContainer */ &&\n                parent.index !== declarationNodeIdx) {\n                parent = parent.parent;\n            }\n            return declarationNodeIdx === (parent !== null ? parent.index : -1);\n        }\n        return this._appliesToNextNode;\n    }\n    /**\n     * @private\n     * @param {?} tView\n     * @param {?} tNode\n     * @return {?}\n     */\n    matchTNode(tView, tNode) {\n        if (Array.isArray(this.metadata.predicate)) {\n            /** @type {?} */\n            const localNames = this.metadata.predicate;\n            for (let i = 0; i < localNames.length; i++) {\n                this.matchTNodeWithReadOption(tView, tNode, getIdxOfMatchingSelector(tNode, localNames[i]));\n            }\n        }\n        else {\n            /** @type {?} */\n            const typePredicate = (/** @type {?} */ (this.metadata.predicate));\n            if (typePredicate === TemplateRef) {\n                if (tNode.type === 0 /* Container */) {\n                    this.matchTNodeWithReadOption(tView, tNode, -1);\n                }\n            }\n            else {\n                this.matchTNodeWithReadOption(tView, tNode, locateDirectiveOrProvider(tNode, tView, typePredicate, false, false));\n            }\n        }\n    }\n    /**\n     * @private\n     * @param {?} tView\n     * @param {?} tNode\n     * @param {?} nodeMatchIdx\n     * @return {?}\n     */\n    matchTNodeWithReadOption(tView, tNode, nodeMatchIdx) {\n        if (nodeMatchIdx !== null) {\n            /** @type {?} */\n            const read = this.metadata.read;\n            if (read !== null) {\n                if (read === ElementRef || read === ViewContainerRef ||\n                    read === TemplateRef && tNode.type === 0 /* Container */) {\n                    this.addMatch(tNode.index, -2);\n                }\n                else {\n                    /** @type {?} */\n                    const directiveOrProviderIdx = locateDirectiveOrProvider(tNode, tView, read, false, false);\n                    if (directiveOrProviderIdx !== null) {\n                        this.addMatch(tNode.index, directiveOrProviderIdx);\n                    }\n                }\n            }\n            else {\n                this.addMatch(tNode.index, nodeMatchIdx);\n            }\n        }\n    }\n    /**\n     * @private\n     * @param {?} tNodeIdx\n     * @param {?} matchIdx\n     * @return {?}\n     */\n    addMatch(tNodeIdx, matchIdx) {\n        if (this.matches === null) {\n            this.matches = [tNodeIdx, matchIdx];\n        }\n        else {\n            this.matches.push(tNodeIdx, matchIdx);\n        }\n    }\n}\nif (false) {\n    /** @type {?} */\n    TQuery_.prototype.matches;\n    /** @type {?} */\n    TQuery_.prototype.indexInDeclarationView;\n    /** @type {?} */\n    TQuery_.prototype.crossesNgTemplate;\n    /**\n     * A node index on which a query was declared (-1 for view queries and ones inherited from the\n     * declaration template). We use this index (alongside with _appliesToNextNode flag) to know\n     * when to apply content queries to elements in a template.\n     * @type {?}\n     * @private\n     */\n    TQuery_.prototype._declarationNodeIndex;\n    /**\n     * A flag indicating if a given query still applies to nodes it is crossing. We use this flag\n     * (alongside with _declarationNodeIndex) to know when to stop applying content queries to\n     * elements in a template.\n     * @type {?}\n     * @private\n     */\n    TQuery_.prototype._appliesToNextNode;\n    /** @type {?} */\n    TQuery_.prototype.metadata;\n}\n/**\n * Iterates over local names for a given node and returns directive index\n * (or -1 if a local name points to an element).\n *\n * @param {?} tNode static data of a node to check\n * @param {?} selector selector to match\n * @return {?} directive index, -1 or null if a selector didn't match any of the local names\n */\nfunction getIdxOfMatchingSelector(tNode, selector) {\n    /** @type {?} */\n    const localNames = tNode.localNames;\n    if (localNames !== null) {\n        for (let i = 0; i < localNames.length; i += 2) {\n            if (localNames[i] === selector) {\n                return (/** @type {?} */ (localNames[i + 1]));\n            }\n        }\n    }\n    return null;\n}\n/**\n * @param {?} tNode\n * @param {?} currentView\n * @return {?}\n */\nfunction createResultByTNodeType(tNode, currentView) {\n    if (tNode.type === 3 /* Element */ || tNode.type === 4 /* ElementContainer */) {\n        return createElementRef(ElementRef, tNode, currentView);\n    }\n    else if (tNode.type === 0 /* Container */) {\n        return createTemplateRef(TemplateRef, ElementRef, tNode, currentView);\n    }\n    return null;\n}\n/**\n * @param {?} lView\n * @param {?} tNode\n * @param {?} matchingIdx\n * @param {?} read\n * @return {?}\n */\nfunction createResultForNode(lView, tNode, matchingIdx, read) {\n    if (matchingIdx === -1) {\n        // if read token and / or strategy is not specified, detect it using appropriate tNode type\n        return createResultByTNodeType(tNode, lView);\n    }\n    else if (matchingIdx === -2) {\n        // read a special token from a node injector\n        return createSpecialToken(lView, tNode, read);\n    }\n    else {\n        // read a token\n        return getNodeInjectable(lView, lView[TVIEW], matchingIdx, (/** @type {?} */ (tNode)));\n    }\n}\n/**\n * @param {?} lView\n * @param {?} tNode\n * @param {?} read\n * @return {?}\n */\nfunction createSpecialToken(lView, tNode, read) {\n    if (read === ElementRef) {\n        return createElementRef(ElementRef, tNode, lView);\n    }\n    else if (read === TemplateRef) {\n        return createTemplateRef(TemplateRef, ElementRef, tNode, lView);\n    }\n    else if (read === ViewContainerRef) {\n        ngDevMode &&\n            assertNodeOfPossibleTypes(tNode, 3 /* Element */, 0 /* Container */, 4 /* ElementContainer */);\n        return createContainerRef(ViewContainerRef, ElementRef, (/** @type {?} */ (tNode)), lView);\n    }\n    else {\n        ngDevMode &&\n            throwError(`Special token to read should be one of ElementRef, TemplateRef or ViewContainerRef but got ${stringify(read)}.`);\n    }\n}\n/**\n * A helper function that creates query results for a given view. This function is meant to do the\n * processing once and only once for a given view instance (a set of results for a given view\n * doesn't change).\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} tQuery\n * @param {?} queryIndex\n * @return {?}\n */\nfunction materializeViewResults(tView, lView, tQuery, queryIndex) {\n    /** @type {?} */\n    const lQuery = (/** @type {?} */ ((/** @type {?} */ (lView[QUERIES])).queries))[queryIndex];\n    if (lQuery.matches === null) {\n        /** @type {?} */\n        const tViewData = tView.data;\n        /** @type {?} */\n        const tQueryMatches = (/** @type {?} */ (tQuery.matches));\n        /** @type {?} */\n        const result = [];\n        for (let i = 0; i < tQueryMatches.length; i += 2) {\n            /** @type {?} */\n            const matchedNodeIdx = tQueryMatches[i];\n            if (matchedNodeIdx < 0) {\n                // we at the <ng-template> marker which might have results in views created based on this\n                // <ng-template> - those results will be in separate views though, so here we just leave\n                // null as a placeholder\n                result.push(null);\n            }\n            else {\n                ngDevMode && assertDataInRange(tViewData, matchedNodeIdx);\n                /** @type {?} */\n                const tNode = (/** @type {?} */ (tViewData[matchedNodeIdx]));\n                result.push(createResultForNode(lView, tNode, tQueryMatches[i + 1], tQuery.metadata.read));\n            }\n        }\n        lQuery.matches = result;\n    }\n    return lQuery.matches;\n}\n/**\n * A helper function that collects (already materialized) query results from a tree of views,\n * starting with a provided LView.\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} queryIndex\n * @param {?} result\n * @return {?}\n */\nfunction collectQueryResults(tView, lView, queryIndex, result) {\n    /** @type {?} */\n    const tQuery = (/** @type {?} */ (tView.queries)).getByIndex(queryIndex);\n    /** @type {?} */\n    const tQueryMatches = tQuery.matches;\n    if (tQueryMatches !== null) {\n        /** @type {?} */\n        const lViewResults = materializeViewResults(tView, lView, tQuery, queryIndex);\n        for (let i = 0; i < tQueryMatches.length; i += 2) {\n            /** @type {?} */\n            const tNodeIdx = tQueryMatches[i];\n            if (tNodeIdx > 0) {\n                result.push((/** @type {?} */ (lViewResults[i / 2])));\n            }\n            else {\n                /** @type {?} */\n                const childQueryIndex = tQueryMatches[i + 1];\n                /** @type {?} */\n                const declarationLContainer = (/** @type {?} */ (lView[-tNodeIdx]));\n                ngDevMode && assertLContainer(declarationLContainer);\n                // collect matches for views inserted in this container\n                for (let i = CONTAINER_HEADER_OFFSET; i < declarationLContainer.length; i++) {\n                    /** @type {?} */\n                    const embeddedLView = declarationLContainer[i];\n                    if (embeddedLView[DECLARATION_LCONTAINER] === embeddedLView[PARENT]) {\n                        collectQueryResults(embeddedLView[TVIEW], embeddedLView, childQueryIndex, result);\n                    }\n                }\n                // collect matches for views created from this declaration container and inserted into\n                // different containers\n                if (declarationLContainer[MOVED_VIEWS] !== null) {\n                    /** @type {?} */\n                    const embeddedLViews = (/** @type {?} */ (declarationLContainer[MOVED_VIEWS]));\n                    for (let i = 0; i < embeddedLViews.length; i++) {\n                        /** @type {?} */\n                        const embeddedLView = embeddedLViews[i];\n                        collectQueryResults(embeddedLView[TVIEW], embeddedLView, childQueryIndex, result);\n                    }\n                }\n            }\n        }\n    }\n    return result;\n}\n/**\n * Refreshes a query by combining matches from all active views and removing matches from deleted\n * views.\n *\n * \\@codeGenApi\n * @param {?} queryList\n * @return {?} `true` if a query got dirty during change detection or if this is a static query\n * resolving in creation mode, `false` otherwise.\n *\n */\nfunction ɵɵqueryRefresh(queryList) {\n    /** @type {?} */\n    const lView = getLView();\n    /** @type {?} */\n    const tView = getTView();\n    /** @type {?} */\n    const queryIndex = getCurrentQueryIndex();\n    setCurrentQueryIndex(queryIndex + 1);\n    /** @type {?} */\n    const tQuery = getTQuery(tView, queryIndex);\n    if (queryList.dirty && (isCreationMode(lView) === tQuery.metadata.isStatic)) {\n        if (tQuery.matches === null) {\n            queryList.reset([]);\n        }\n        else {\n            /** @type {?} */\n            const result = tQuery.crossesNgTemplate ?\n                collectQueryResults(tView, lView, queryIndex, []) :\n                materializeViewResults(tView, lView, tQuery, queryIndex);\n            queryList.reset(result);\n            queryList.notifyOnChanges();\n        }\n        return true;\n    }\n    return false;\n}\n/**\n * Creates new QueryList for a static view query.\n *\n * \\@codeGenApi\n * @template T\n * @param {?} predicate The type for which the query will search\n * @param {?} descend Whether or not to descend into children\n * @param {?=} read What to save in the query\n *\n * @return {?}\n */\nfunction ɵɵstaticViewQuery(predicate, descend, read) {\n    viewQueryInternal(getTView(), getLView(), predicate, descend, read, true);\n}\n/**\n * Creates new QueryList, stores the reference in LView and returns QueryList.\n *\n * \\@codeGenApi\n * @template T\n * @param {?} predicate The type for which the query will search\n * @param {?} descend Whether or not to descend into children\n * @param {?=} read What to save in the query\n *\n * @return {?}\n */\nfunction ɵɵviewQuery(predicate, descend, read) {\n    viewQueryInternal(getTView(), getLView(), predicate, descend, read, false);\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} predicate\n * @param {?} descend\n * @param {?} read\n * @param {?} isStatic\n * @return {?}\n */\nfunction viewQueryInternal(tView, lView, predicate, descend, read, isStatic) {\n    if (tView.firstCreatePass) {\n        createTQuery(tView, new TQueryMetadata_(predicate, descend, isStatic, read), -1);\n        if (isStatic) {\n            tView.staticViewQueries = true;\n        }\n    }\n    createLQuery(tView, lView);\n}\n/**\n * Registers a QueryList, associated with a content query, for later refresh (part of a view\n * refresh).\n *\n * \\@codeGenApi\n * @template T\n * @param {?} directiveIndex Current directive index\n * @param {?} predicate The type for which the query will search\n * @param {?} descend Whether or not to descend into children\n * @param {?=} read What to save in the query\n * @return {?} QueryList<T>\n *\n */\nfunction ɵɵcontentQuery(directiveIndex, predicate, descend, read) {\n    contentQueryInternal(getTView(), getLView(), predicate, descend, read, false, getPreviousOrParentTNode(), directiveIndex);\n}\n/**\n * Registers a QueryList, associated with a static content query, for later refresh\n * (part of a view refresh).\n *\n * \\@codeGenApi\n * @template T\n * @param {?} directiveIndex Current directive index\n * @param {?} predicate The type for which the query will search\n * @param {?} descend Whether or not to descend into children\n * @param {?=} read What to save in the query\n * @return {?} QueryList<T>\n *\n */\nfunction ɵɵstaticContentQuery(directiveIndex, predicate, descend, read) {\n    contentQueryInternal(getTView(), getLView(), predicate, descend, read, true, getPreviousOrParentTNode(), directiveIndex);\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @param {?} predicate\n * @param {?} descend\n * @param {?} read\n * @param {?} isStatic\n * @param {?} tNode\n * @param {?} directiveIndex\n * @return {?}\n */\nfunction contentQueryInternal(tView, lView, predicate, descend, read, isStatic, tNode, directiveIndex) {\n    if (tView.firstCreatePass) {\n        createTQuery(tView, new TQueryMetadata_(predicate, descend, isStatic, read), tNode.index);\n        saveContentQueryAndDirectiveIndex(tView, directiveIndex);\n        if (isStatic) {\n            tView.staticContentQueries = true;\n        }\n    }\n    createLQuery(tView, lView);\n}\n/**\n * Loads a QueryList corresponding to the current view or content query.\n *\n * \\@codeGenApi\n * @template T\n * @return {?}\n */\nfunction ɵɵloadQuery() {\n    return loadQueryInternal(getLView(), getCurrentQueryIndex());\n}\n/**\n * @template T\n * @param {?} lView\n * @param {?} queryIndex\n * @return {?}\n */\nfunction loadQueryInternal(lView, queryIndex) {\n    ngDevMode &&\n        assertDefined(lView[QUERIES], 'LQueries should be defined when trying to load a query');\n    ngDevMode && assertDataInRange((/** @type {?} */ (lView[QUERIES])).queries, queryIndex);\n    return (/** @type {?} */ (lView[QUERIES])).queries[queryIndex].queryList;\n}\n/**\n * @template T\n * @param {?} tView\n * @param {?} lView\n * @return {?}\n */\nfunction createLQuery(tView, lView) {\n    /** @type {?} */\n    const queryList = new QueryList();\n    storeCleanupWithContext(tView, lView, queryList, queryList.destroy);\n    if (lView[QUERIES] === null)\n        lView[QUERIES] = new LQueries_();\n    (/** @type {?} */ (lView[QUERIES])).queries.push(new LQuery_(queryList));\n}\n/**\n * @param {?} tView\n * @param {?} metadata\n * @param {?} nodeIndex\n * @return {?}\n */\nfunction createTQuery(tView, metadata, nodeIndex) {\n    if (tView.queries === null)\n        tView.queries = new TQueries_();\n    tView.queries.track(new TQuery_(metadata, nodeIndex));\n}\n/**\n * @param {?} tView\n * @param {?} directiveIndex\n * @return {?}\n */\nfunction saveContentQueryAndDirectiveIndex(tView, directiveIndex) {\n    /** @type {?} */\n    const tViewContentQueries = tView.contentQueries || (tView.contentQueries = []);\n    /** @type {?} */\n    const lastSavedDirectiveIndex = tView.contentQueries.length ? tViewContentQueries[tViewContentQueries.length - 1] : -1;\n    if (directiveIndex !== lastSavedDirectiveIndex) {\n        tViewContentQueries.push((/** @type {?} */ (tView.queries)).length - 1, directiveIndex);\n    }\n}\n/**\n * @param {?} tView\n * @param {?} index\n * @return {?}\n */\nfunction getTQuery(tView, index) {\n    ngDevMode && assertDefined(tView.queries, 'TQueries must be defined to retrieve a TQuery');\n    return (/** @type {?} */ (tView.queries)).getByIndex(index);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/view_engine_compatibility_prebound.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Retrieves `TemplateRef` instance from `Injector` when a local reference is placed on the\n * `<ng-template>` element.\n *\n * \\@codeGenApi\n * @param {?} tNode\n * @param {?} currentView\n * @return {?}\n */\nfunction ɵɵtemplateRefExtractor(tNode, currentView) {\n    return createTemplateRef(TemplateRef, ElementRef, tNode, currentView);\n}\n/**\n * Returns the appropriate `ChangeDetectorRef` for a pipe.\n *\n * \\@codeGenApi\n * @param {?=} flags\n * @return {?}\n */\nfunction ɵɵinjectPipeChangeDetectorRef(flags = InjectFlags.Default) {\n    /** @type {?} */\n    const value = injectChangeDetectorRef(true);\n    if (value == null && !(flags & InjectFlags.Optional)) {\n        throw new Error(`No provider for ChangeDetectorRef!`);\n    }\n    else {\n        return value;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/jit/environment.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nconst ɵ0$d = /**\n * @return {?}\n */\n() => ({\n    'ɵɵattribute': ɵɵattribute,\n    'ɵɵattributeInterpolate1': ɵɵattributeInterpolate1,\n    'ɵɵattributeInterpolate2': ɵɵattributeInterpolate2,\n    'ɵɵattributeInterpolate3': ɵɵattributeInterpolate3,\n    'ɵɵattributeInterpolate4': ɵɵattributeInterpolate4,\n    'ɵɵattributeInterpolate5': ɵɵattributeInterpolate5,\n    'ɵɵattributeInterpolate6': ɵɵattributeInterpolate6,\n    'ɵɵattributeInterpolate7': ɵɵattributeInterpolate7,\n    'ɵɵattributeInterpolate8': ɵɵattributeInterpolate8,\n    'ɵɵattributeInterpolateV': ɵɵattributeInterpolateV,\n    'ɵɵdefineComponent': ɵɵdefineComponent,\n    'ɵɵdefineDirective': ɵɵdefineDirective,\n    'ɵɵdefineInjectable': ɵɵdefineInjectable,\n    'ɵɵdefineInjector': ɵɵdefineInjector,\n    'ɵɵdefineNgModule': ɵɵdefineNgModule,\n    'ɵɵdefinePipe': ɵɵdefinePipe,\n    'ɵɵdirectiveInject': ɵɵdirectiveInject,\n    'ɵɵgetFactoryOf': ɵɵgetFactoryOf,\n    'ɵɵgetInheritedFactory': ɵɵgetInheritedFactory,\n    'ɵɵinject': ɵɵinject,\n    'ɵɵinjectAttribute': ɵɵinjectAttribute,\n    'ɵɵinvalidFactory': ɵɵinvalidFactory,\n    'ɵɵinvalidFactoryDep': ɵɵinvalidFactoryDep,\n    'ɵɵinjectPipeChangeDetectorRef': ɵɵinjectPipeChangeDetectorRef,\n    'ɵɵtemplateRefExtractor': ɵɵtemplateRefExtractor,\n    'ɵɵNgOnChangesFeature': ɵɵNgOnChangesFeature,\n    'ɵɵProvidersFeature': ɵɵProvidersFeature,\n    'ɵɵCopyDefinitionFeature': ɵɵCopyDefinitionFeature,\n    'ɵɵInheritDefinitionFeature': ɵɵInheritDefinitionFeature,\n    'ɵɵnextContext': ɵɵnextContext,\n    'ɵɵnamespaceHTML': ɵɵnamespaceHTML,\n    'ɵɵnamespaceMathML': ɵɵnamespaceMathML,\n    'ɵɵnamespaceSVG': ɵɵnamespaceSVG,\n    'ɵɵenableBindings': ɵɵenableBindings,\n    'ɵɵdisableBindings': ɵɵdisableBindings,\n    'ɵɵelementStart': ɵɵelementStart,\n    'ɵɵelementEnd': ɵɵelementEnd,\n    'ɵɵelement': ɵɵelement,\n    'ɵɵelementContainerStart': ɵɵelementContainerStart,\n    'ɵɵelementContainerEnd': ɵɵelementContainerEnd,\n    'ɵɵelementContainer': ɵɵelementContainer,\n    'ɵɵpureFunction0': ɵɵpureFunction0,\n    'ɵɵpureFunction1': ɵɵpureFunction1,\n    'ɵɵpureFunction2': ɵɵpureFunction2,\n    'ɵɵpureFunction3': ɵɵpureFunction3,\n    'ɵɵpureFunction4': ɵɵpureFunction4,\n    'ɵɵpureFunction5': ɵɵpureFunction5,\n    'ɵɵpureFunction6': ɵɵpureFunction6,\n    'ɵɵpureFunction7': ɵɵpureFunction7,\n    'ɵɵpureFunction8': ɵɵpureFunction8,\n    'ɵɵpureFunctionV': ɵɵpureFunctionV,\n    'ɵɵgetCurrentView': ɵɵgetCurrentView,\n    'ɵɵrestoreView': ɵɵrestoreView,\n    'ɵɵlistener': ɵɵlistener,\n    'ɵɵprojection': ɵɵprojection,\n    'ɵɵupdateSyntheticHostBinding': ɵɵupdateSyntheticHostBinding,\n    'ɵɵcomponentHostSyntheticListener': ɵɵcomponentHostSyntheticListener,\n    'ɵɵpipeBind1': ɵɵpipeBind1,\n    'ɵɵpipeBind2': ɵɵpipeBind2,\n    'ɵɵpipeBind3': ɵɵpipeBind3,\n    'ɵɵpipeBind4': ɵɵpipeBind4,\n    'ɵɵpipeBindV': ɵɵpipeBindV,\n    'ɵɵprojectionDef': ɵɵprojectionDef,\n    'ɵɵhostProperty': ɵɵhostProperty,\n    'ɵɵproperty': ɵɵproperty,\n    'ɵɵpropertyInterpolate': ɵɵpropertyInterpolate,\n    'ɵɵpropertyInterpolate1': ɵɵpropertyInterpolate1,\n    'ɵɵpropertyInterpolate2': ɵɵpropertyInterpolate2,\n    'ɵɵpropertyInterpolate3': ɵɵpropertyInterpolate3,\n    'ɵɵpropertyInterpolate4': ɵɵpropertyInterpolate4,\n    'ɵɵpropertyInterpolate5': ɵɵpropertyInterpolate5,\n    'ɵɵpropertyInterpolate6': ɵɵpropertyInterpolate6,\n    'ɵɵpropertyInterpolate7': ɵɵpropertyInterpolate7,\n    'ɵɵpropertyInterpolate8': ɵɵpropertyInterpolate8,\n    'ɵɵpropertyInterpolateV': ɵɵpropertyInterpolateV,\n    'ɵɵpipe': ɵɵpipe,\n    'ɵɵqueryRefresh': ɵɵqueryRefresh,\n    'ɵɵviewQuery': ɵɵviewQuery,\n    'ɵɵstaticViewQuery': ɵɵstaticViewQuery,\n    'ɵɵstaticContentQuery': ɵɵstaticContentQuery,\n    'ɵɵloadQuery': ɵɵloadQuery,\n    'ɵɵcontentQuery': ɵɵcontentQuery,\n    'ɵɵreference': ɵɵreference,\n    'ɵɵclassMap': ɵɵclassMap,\n    'ɵɵclassMapInterpolate1': ɵɵclassMapInterpolate1,\n    'ɵɵclassMapInterpolate2': ɵɵclassMapInterpolate2,\n    'ɵɵclassMapInterpolate3': ɵɵclassMapInterpolate3,\n    'ɵɵclassMapInterpolate4': ɵɵclassMapInterpolate4,\n    'ɵɵclassMapInterpolate5': ɵɵclassMapInterpolate5,\n    'ɵɵclassMapInterpolate6': ɵɵclassMapInterpolate6,\n    'ɵɵclassMapInterpolate7': ɵɵclassMapInterpolate7,\n    'ɵɵclassMapInterpolate8': ɵɵclassMapInterpolate8,\n    'ɵɵclassMapInterpolateV': ɵɵclassMapInterpolateV,\n    'ɵɵstyleMap': ɵɵstyleMap,\n    'ɵɵstyleMapInterpolate1': ɵɵstyleMapInterpolate1,\n    'ɵɵstyleMapInterpolate2': ɵɵstyleMapInterpolate2,\n    'ɵɵstyleMapInterpolate3': ɵɵstyleMapInterpolate3,\n    'ɵɵstyleMapInterpolate4': ɵɵstyleMapInterpolate4,\n    'ɵɵstyleMapInterpolate5': ɵɵstyleMapInterpolate5,\n    'ɵɵstyleMapInterpolate6': ɵɵstyleMapInterpolate6,\n    'ɵɵstyleMapInterpolate7': ɵɵstyleMapInterpolate7,\n    'ɵɵstyleMapInterpolate8': ɵɵstyleMapInterpolate8,\n    'ɵɵstyleMapInterpolateV': ɵɵstyleMapInterpolateV,\n    'ɵɵstyleProp': ɵɵstyleProp,\n    'ɵɵstylePropInterpolate1': ɵɵstylePropInterpolate1,\n    'ɵɵstylePropInterpolate2': ɵɵstylePropInterpolate2,\n    'ɵɵstylePropInterpolate3': ɵɵstylePropInterpolate3,\n    'ɵɵstylePropInterpolate4': ɵɵstylePropInterpolate4,\n    'ɵɵstylePropInterpolate5': ɵɵstylePropInterpolate5,\n    'ɵɵstylePropInterpolate6': ɵɵstylePropInterpolate6,\n    'ɵɵstylePropInterpolate7': ɵɵstylePropInterpolate7,\n    'ɵɵstylePropInterpolate8': ɵɵstylePropInterpolate8,\n    'ɵɵstylePropInterpolateV': ɵɵstylePropInterpolateV,\n    'ɵɵstyleSanitizer': ɵɵstyleSanitizer,\n    'ɵɵclassProp': ɵɵclassProp,\n    'ɵɵselect': ɵɵselect,\n    'ɵɵadvance': ɵɵadvance,\n    'ɵɵtemplate': ɵɵtemplate,\n    'ɵɵtext': ɵɵtext,\n    'ɵɵtextInterpolate': ɵɵtextInterpolate,\n    'ɵɵtextInterpolate1': ɵɵtextInterpolate1,\n    'ɵɵtextInterpolate2': ɵɵtextInterpolate2,\n    'ɵɵtextInterpolate3': ɵɵtextInterpolate3,\n    'ɵɵtextInterpolate4': ɵɵtextInterpolate4,\n    'ɵɵtextInterpolate5': ɵɵtextInterpolate5,\n    'ɵɵtextInterpolate6': ɵɵtextInterpolate6,\n    'ɵɵtextInterpolate7': ɵɵtextInterpolate7,\n    'ɵɵtextInterpolate8': ɵɵtextInterpolate8,\n    'ɵɵtextInterpolateV': ɵɵtextInterpolateV,\n    'ɵɵi18n': ɵɵi18n,\n    'ɵɵi18nAttributes': ɵɵi18nAttributes,\n    'ɵɵi18nExp': ɵɵi18nExp,\n    'ɵɵi18nStart': ɵɵi18nStart,\n    'ɵɵi18nEnd': ɵɵi18nEnd,\n    'ɵɵi18nApply': ɵɵi18nApply,\n    'ɵɵi18nPostprocess': ɵɵi18nPostprocess,\n    'ɵɵresolveWindow': ɵɵresolveWindow,\n    'ɵɵresolveDocument': ɵɵresolveDocument,\n    'ɵɵresolveBody': ɵɵresolveBody,\n    'ɵɵsetComponentScope': ɵɵsetComponentScope,\n    'ɵɵsetNgModuleScope': ɵɵsetNgModuleScope,\n    'ɵɵsanitizeHtml': ɵɵsanitizeHtml,\n    'ɵɵsanitizeStyle': ɵɵsanitizeStyle,\n    'ɵɵdefaultStyleSanitizer': ɵɵdefaultStyleSanitizer,\n    'ɵɵsanitizeResourceUrl': ɵɵsanitizeResourceUrl,\n    'ɵɵsanitizeScript': ɵɵsanitizeScript,\n    'ɵɵsanitizeUrl': ɵɵsanitizeUrl,\n    'ɵɵsanitizeUrlOrResourceUrl': ɵɵsanitizeUrlOrResourceUrl,\n});\n/**\n * A mapping of the \\@angular/core API surface used in generated expressions to the actual symbols.\n *\n * This should be kept up to date with the public exports of \\@angular/core.\n * @type {?}\n */\nconst angularCoreEnv = ((ɵ0$d))();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/jit/jit_options.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction JitCompilerOptions() { }\nif (false) {\n    /** @type {?|undefined} */\n    JitCompilerOptions.prototype.defaultEncapsulation;\n    /** @type {?|undefined} */\n    JitCompilerOptions.prototype.preserveWhitespaces;\n}\n/** @type {?} */\nlet jitOptions = null;\n/**\n * @param {?} options\n * @return {?}\n */\nfunction setJitOptions(options) {\n    if (jitOptions !== null) {\n        if (options.defaultEncapsulation !== jitOptions.defaultEncapsulation) {\n            ngDevMode &&\n                console.error('Provided value for `defaultEncapsulation` can not be changed once it has been set.');\n            return;\n        }\n        if (options.preserveWhitespaces !== jitOptions.preserveWhitespaces) {\n            ngDevMode &&\n                console.error('Provided value for `preserveWhitespaces` can not be changed once it has been set.');\n            return;\n        }\n    }\n    jitOptions = options;\n}\n/**\n * @return {?}\n */\nfunction getJitOptions() {\n    return jitOptions;\n}\n/**\n * @return {?}\n */\nfunction resetJitOptions() {\n    jitOptions = null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/jit/module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst EMPTY_ARRAY$5 = [];\n/**\n * @record\n */\nfunction ModuleQueueItem() { }\nif (false) {\n    /** @type {?} */\n    ModuleQueueItem.prototype.moduleType;\n    /** @type {?} */\n    ModuleQueueItem.prototype.ngModule;\n}\n/** @type {?} */\nconst moduleQueue = [];\n/**\n * Enqueues moduleDef to be checked later to see if scope can be set on its\n * component declarations.\n * @param {?} moduleType\n * @param {?} ngModule\n * @return {?}\n */\nfunction enqueueModuleForDelayedScoping(moduleType, ngModule) {\n    moduleQueue.push({ moduleType, ngModule });\n}\n/** @type {?} */\nlet flushingModuleQueue = false;\n/**\n * Loops over queued module definitions, if a given module definition has all of its\n * declarations resolved, it dequeues that module definition and sets the scope on\n * its declarations.\n * @return {?}\n */\nfunction flushModuleScopingQueueAsMuchAsPossible() {\n    if (!flushingModuleQueue) {\n        flushingModuleQueue = true;\n        try {\n            for (let i = moduleQueue.length - 1; i >= 0; i--) {\n                const { moduleType, ngModule } = moduleQueue[i];\n                if (ngModule.declarations && ngModule.declarations.every(isResolvedDeclaration)) {\n                    // dequeue\n                    moduleQueue.splice(i, 1);\n                    setScopeOnDeclaredComponents(moduleType, ngModule);\n                }\n            }\n        }\n        finally {\n            flushingModuleQueue = false;\n        }\n    }\n}\n/**\n * Returns truthy if a declaration has resolved. If the declaration happens to be\n * an array of declarations, it will recurse to check each declaration in that array\n * (which may also be arrays).\n * @param {?} declaration\n * @return {?}\n */\nfunction isResolvedDeclaration(declaration) {\n    if (Array.isArray(declaration)) {\n        return declaration.every(isResolvedDeclaration);\n    }\n    return !!resolveForwardRef(declaration);\n}\n/**\n * Compiles a module in JIT mode.\n *\n * This function automatically gets called when a class has a `\\@NgModule` decorator.\n * @param {?} moduleType\n * @param {?=} ngModule\n * @return {?}\n */\nfunction compileNgModule(moduleType, ngModule = {}) {\n    compileNgModuleDefs((/** @type {?} */ (moduleType)), ngModule);\n    // Because we don't know if all declarations have resolved yet at the moment the\n    // NgModule decorator is executing, we're enqueueing the setting of module scope\n    // on its declarations to be run at a later time when all declarations for the module,\n    // including forward refs, have resolved.\n    enqueueModuleForDelayedScoping(moduleType, ngModule);\n}\n/**\n * Compiles and adds the `ɵmod` and `ɵinj` properties to the module class.\n *\n * It's possible to compile a module via this API which will allow duplicate declarations in its\n * root.\n * @param {?} moduleType\n * @param {?} ngModule\n * @param {?=} allowDuplicateDeclarationsInRoot\n * @return {?}\n */\nfunction compileNgModuleDefs(moduleType, ngModule, allowDuplicateDeclarationsInRoot = false) {\n    ngDevMode && assertDefined(moduleType, 'Required value moduleType');\n    ngDevMode && assertDefined(ngModule, 'Required value ngModule');\n    /** @type {?} */\n    const declarations = flatten(ngModule.declarations || EMPTY_ARRAY$5);\n    /** @type {?} */\n    let ngModuleDef = null;\n    Object.defineProperty(moduleType, NG_MOD_DEF, {\n        configurable: true,\n        get: (/**\n         * @return {?}\n         */\n        () => {\n            if (ngModuleDef === null) {\n                if (ngDevMode && ngModule.imports && ngModule.imports.indexOf(moduleType) > -1) {\n                    // We need to assert this immediately, because allowing it to continue will cause it to\n                    // go into an infinite loop before we've reached the point where we throw all the errors.\n                    throw new Error(`'${stringifyForError(moduleType)}' module can't import itself`);\n                }\n                ngModuleDef = getCompilerFacade().compileNgModule(angularCoreEnv, `ng:///${moduleType.name}/ɵmod.js`, {\n                    type: moduleType,\n                    bootstrap: flatten(ngModule.bootstrap || EMPTY_ARRAY$5).map(resolveForwardRef),\n                    declarations: declarations.map(resolveForwardRef),\n                    imports: flatten(ngModule.imports || EMPTY_ARRAY$5)\n                        .map(resolveForwardRef)\n                        .map(expandModuleWithProviders),\n                    exports: flatten(ngModule.exports || EMPTY_ARRAY$5)\n                        .map(resolveForwardRef)\n                        .map(expandModuleWithProviders),\n                    schemas: ngModule.schemas ? flatten(ngModule.schemas) : null,\n                    id: ngModule.id || null,\n                });\n                // Set `schemas` on ngModuleDef to an empty array in JIT mode to indicate that runtime\n                // should verify that there are no unknown elements in a template. In AOT mode, that check\n                // happens at compile time and `schemas` information is not present on Component and Module\n                // defs after compilation (so the check doesn't happen the second time at runtime).\n                if (!ngModuleDef.schemas) {\n                    ngModuleDef.schemas = [];\n                }\n            }\n            return ngModuleDef;\n        })\n    });\n    /** @type {?} */\n    let ngInjectorDef = null;\n    Object.defineProperty(moduleType, NG_INJ_DEF, {\n        get: (/**\n         * @return {?}\n         */\n        () => {\n            if (ngInjectorDef === null) {\n                ngDevMode &&\n                    verifySemanticsOfNgModuleDef((/** @type {?} */ ((/** @type {?} */ (moduleType)))), allowDuplicateDeclarationsInRoot);\n                /** @type {?} */\n                const meta = {\n                    name: moduleType.name,\n                    type: moduleType,\n                    deps: reflectDependencies(moduleType),\n                    providers: ngModule.providers || EMPTY_ARRAY$5,\n                    imports: [\n                        (ngModule.imports || EMPTY_ARRAY$5).map(resolveForwardRef),\n                        (ngModule.exports || EMPTY_ARRAY$5).map(resolveForwardRef),\n                    ],\n                };\n                ngInjectorDef = getCompilerFacade().compileInjector(angularCoreEnv, `ng:///${moduleType.name}/ɵinj.js`, meta);\n            }\n            return ngInjectorDef;\n        }),\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\n/**\n * @param {?} moduleType\n * @param {?} allowDuplicateDeclarationsInRoot\n * @param {?=} importingModule\n * @return {?}\n */\nfunction verifySemanticsOfNgModuleDef(moduleType, allowDuplicateDeclarationsInRoot, importingModule) {\n    if (verifiedNgModule.get(moduleType))\n        return;\n    verifiedNgModule.set(moduleType, true);\n    moduleType = resolveForwardRef(moduleType);\n    /** @type {?} */\n    let ngModuleDef;\n    if (importingModule) {\n        ngModuleDef = (/** @type {?} */ (getNgModuleDef(moduleType)));\n        if (!ngModuleDef) {\n            throw new Error(`Unexpected value '${moduleType.name}' imported by the module '${importingModule.name}'. Please add an @NgModule annotation.`);\n        }\n    }\n    else {\n        ngModuleDef = getNgModuleDef(moduleType, true);\n    }\n    /** @type {?} */\n    const errors = [];\n    /** @type {?} */\n    const declarations = maybeUnwrapFn(ngModuleDef.declarations);\n    /** @type {?} */\n    const imports = maybeUnwrapFn(ngModuleDef.imports);\n    flatten(imports).map(unwrapModuleWithProvidersImports).forEach((/**\n     * @param {?} mod\n     * @return {?}\n     */\n    mod => {\n        verifySemanticsOfNgModuleImport(mod, moduleType);\n        verifySemanticsOfNgModuleDef(mod, false, moduleType);\n    }));\n    /** @type {?} */\n    const exports = maybeUnwrapFn(ngModuleDef.exports);\n    declarations.forEach(verifyDeclarationsHaveDefinitions);\n    declarations.forEach(verifyDirectivesHaveSelector);\n    /** @type {?} */\n    const combinedDeclarations = [\n        ...declarations.map(resolveForwardRef),\n        ...flatten(imports.map(computeCombinedExports)).map(resolveForwardRef),\n    ];\n    exports.forEach(verifyExportsAreDeclaredOrReExported);\n    declarations.forEach((/**\n     * @param {?} decl\n     * @return {?}\n     */\n    decl => verifyDeclarationIsUnique(decl, allowDuplicateDeclarationsInRoot)));\n    declarations.forEach(verifyComponentEntryComponentsIsPartOfNgModule);\n    /** @type {?} */\n    const ngModule = getAnnotation(moduleType, 'NgModule');\n    if (ngModule) {\n        ngModule.imports &&\n            flatten(ngModule.imports).map(unwrapModuleWithProvidersImports).forEach((/**\n             * @param {?} mod\n             * @return {?}\n             */\n            mod => {\n                verifySemanticsOfNgModuleImport(mod, moduleType);\n                verifySemanticsOfNgModuleDef(mod, false, moduleType);\n            }));\n        ngModule.bootstrap && deepForEach(ngModule.bootstrap, verifyCorrectBootstrapType);\n        ngModule.bootstrap && deepForEach(ngModule.bootstrap, verifyComponentIsPartOfNgModule);\n        ngModule.entryComponents &&\n            deepForEach(ngModule.entryComponents, verifyComponentIsPartOfNgModule);\n    }\n    // Throw Error if any errors were detected.\n    if (errors.length) {\n        throw new Error(errors.join('\\n'));\n    }\n    ////////////////////////////////////////////////////////////////////////////////////////////////\n    /**\n     * @param {?} type\n     * @return {?}\n     */\n    function verifyDeclarationsHaveDefinitions(type) {\n        type = resolveForwardRef(type);\n        /** @type {?} */\n        const def = getComponentDef(type) || getDirectiveDef(type) || getPipeDef(type);\n        if (!def) {\n            errors.push(`Unexpected value '${stringifyForError(type)}' declared by the module '${stringifyForError(moduleType)}'. Please add a @Pipe/@Directive/@Component annotation.`);\n        }\n    }\n    /**\n     * @param {?} type\n     * @return {?}\n     */\n    function verifyDirectivesHaveSelector(type) {\n        type = resolveForwardRef(type);\n        /** @type {?} */\n        const def = getDirectiveDef(type);\n        if (!getComponentDef(type) && def && def.selectors.length == 0) {\n            errors.push(`Directive ${stringifyForError(type)} has no selector, please add it!`);\n        }\n    }\n    /**\n     * @param {?} type\n     * @return {?}\n     */\n    function verifyExportsAreDeclaredOrReExported(type) {\n        type = resolveForwardRef(type);\n        /** @type {?} */\n        const kind = getComponentDef(type) && 'component' || getDirectiveDef(type) && 'directive' ||\n            getPipeDef(type) && 'pipe';\n        if (kind) {\n            // only checked if we are declared as Component, Directive, or Pipe\n            // Modules don't need to be declared or imported.\n            if (combinedDeclarations.lastIndexOf(type) === -1) {\n                // We are exporting something which we don't explicitly declare or import.\n                errors.push(`Can't export ${kind} ${stringifyForError(type)} from ${stringifyForError(moduleType)} as it was neither declared nor imported!`);\n            }\n        }\n    }\n    /**\n     * @param {?} type\n     * @param {?} suppressErrors\n     * @return {?}\n     */\n    function verifyDeclarationIsUnique(type, suppressErrors) {\n        type = resolveForwardRef(type);\n        /** @type {?} */\n        const existingModule = ownerNgModule.get(type);\n        if (existingModule && existingModule !== moduleType) {\n            if (!suppressErrors) {\n                /** @type {?} */\n                const modules = [existingModule, moduleType].map(stringifyForError).sort();\n                errors.push(`Type ${stringifyForError(type)} is part of the declarations of 2 modules: ${modules[0]} and ${modules[1]}! ` +\n                    `Please consider moving ${stringifyForError(type)} to a higher module that imports ${modules[0]} and ${modules[1]}. ` +\n                    `You can also create a new NgModule that exports and includes ${stringifyForError(type)} then import that NgModule in ${modules[0]} and ${modules[1]}.`);\n            }\n        }\n        else {\n            // Mark type as having owner.\n            ownerNgModule.set(type, moduleType);\n        }\n    }\n    /**\n     * @param {?} type\n     * @return {?}\n     */\n    function verifyComponentIsPartOfNgModule(type) {\n        type = resolveForwardRef(type);\n        /** @type {?} */\n        const existingModule = ownerNgModule.get(type);\n        if (!existingModule) {\n            errors.push(`Component ${stringifyForError(type)} is not part of any NgModule or the module has not been imported into your module.`);\n        }\n    }\n    /**\n     * @param {?} type\n     * @return {?}\n     */\n    function verifyCorrectBootstrapType(type) {\n        type = resolveForwardRef(type);\n        if (!getComponentDef(type)) {\n            errors.push(`${stringifyForError(type)} cannot be used as an entry component.`);\n        }\n    }\n    /**\n     * @param {?} type\n     * @return {?}\n     */\n    function verifyComponentEntryComponentsIsPartOfNgModule(type) {\n        type = resolveForwardRef(type);\n        if (getComponentDef(type)) {\n            // We know we are component\n            /** @type {?} */\n            const component = getAnnotation(type, 'Component');\n            if (component && component.entryComponents) {\n                deepForEach(component.entryComponents, verifyComponentIsPartOfNgModule);\n            }\n        }\n    }\n    /**\n     * @param {?} type\n     * @param {?} importingModule\n     * @return {?}\n     */\n    function verifySemanticsOfNgModuleImport(type, importingModule) {\n        type = resolveForwardRef(type);\n        if (getComponentDef(type) || getDirectiveDef(type)) {\n            throw new Error(`Unexpected directive '${type.name}' imported by the module '${importingModule.name}'. Please add an @NgModule annotation.`);\n        }\n        if (getPipeDef(type)) {\n            throw new Error(`Unexpected pipe '${type.name}' imported by the module '${importingModule.name}'. Please add an @NgModule annotation.`);\n        }\n    }\n}\n/**\n * @param {?} typeOrWithProviders\n * @return {?}\n */\nfunction unwrapModuleWithProvidersImports(typeOrWithProviders) {\n    typeOrWithProviders = resolveForwardRef(typeOrWithProviders);\n    return ((/** @type {?} */ (typeOrWithProviders))).ngModule || typeOrWithProviders;\n}\n/**\n * @template T\n * @param {?} type\n * @param {?} name\n * @return {?}\n */\nfunction getAnnotation(type, name) {\n    /** @type {?} */\n    let annotation = null;\n    collect(type.__annotations__);\n    collect(type.decorators);\n    return annotation;\n    /**\n     * @param {?} annotations\n     * @return {?}\n     */\n    function collect(annotations) {\n        if (annotations) {\n            annotations.forEach(readAnnotation);\n        }\n    }\n    /**\n     * @param {?} decorator\n     * @return {?}\n     */\n    function readAnnotation(decorator) {\n        if (!annotation) {\n            /** @type {?} */\n            const proto = Object.getPrototypeOf(decorator);\n            if (proto.ngMetadataName == name) {\n                annotation = (/** @type {?} */ (decorator));\n            }\n            else if (decorator.type) {\n                /** @type {?} */\n                const proto = Object.getPrototypeOf(decorator.type);\n                if (proto.ngMetadataName == name) {\n                    annotation = decorator.args[0];\n                }\n            }\n        }\n    }\n}\n/**\n * Keep track of compiled components. This is needed because in tests we often want to compile the\n * same component with more than one NgModule. This would cause an error unless we reset which\n * NgModule the component belongs to. We keep the list of compiled components here so that the\n * TestBed can reset it later.\n * @type {?}\n */\nlet ownerNgModule = new Map();\n/** @type {?} */\nlet verifiedNgModule = new Map();\n/**\n * @return {?}\n */\nfunction resetCompiledComponents() {\n    ownerNgModule = new Map();\n    verifiedNgModule = new Map();\n    moduleQueue.length = 0;\n}\n/**\n * Computes the combined declarations of explicit declarations, as well as declarations inherited by\n * traversing the exports of imported modules.\n * @param {?} type\n * @return {?}\n */\nfunction computeCombinedExports(type) {\n    type = resolveForwardRef(type);\n    /** @type {?} */\n    const ngModuleDef = getNgModuleDef(type, true);\n    return [...flatten(maybeUnwrapFn(ngModuleDef.exports).map((/**\n         * @param {?} type\n         * @return {?}\n         */\n        (type) => {\n            /** @type {?} */\n            const ngModuleDef = getNgModuleDef(type);\n            if (ngModuleDef) {\n                verifySemanticsOfNgModuleDef((/** @type {?} */ ((/** @type {?} */ (type)))), false);\n                return computeCombinedExports(type);\n            }\n            else {\n                return type;\n            }\n        })))];\n}\n/**\n * Some declared components may be compiled asynchronously, and thus may not have their\n * ɵcmp set yet. If this is the case, then a reference to the module is written into\n * the `ngSelectorScope` property of the declared type.\n * @param {?} moduleType\n * @param {?} ngModule\n * @return {?}\n */\nfunction setScopeOnDeclaredComponents(moduleType, ngModule) {\n    /** @type {?} */\n    const declarations = flatten(ngModule.declarations || EMPTY_ARRAY$5);\n    /** @type {?} */\n    const transitiveScopes = transitiveScopesFor(moduleType);\n    declarations.forEach((/**\n     * @param {?} declaration\n     * @return {?}\n     */\n    declaration => {\n        if (declaration.hasOwnProperty(NG_COMP_DEF)) {\n            // A `ɵcmp` field exists - go ahead and patch the component directly.\n            /** @type {?} */\n            const component = (/** @type {?} */ (declaration));\n            /** @type {?} */\n            const componentDef = (/** @type {?} */ (getComponentDef(component)));\n            patchComponentDefWithScope(componentDef, transitiveScopes);\n        }\n        else if (!declaration.hasOwnProperty(NG_DIR_DEF) && !declaration.hasOwnProperty(NG_PIPE_DEF)) {\n            // Set `ngSelectorScope` for future reference when the component compilation finishes.\n            ((/** @type {?} */ (declaration))).ngSelectorScope = moduleType;\n        }\n    }));\n}\n/**\n * Patch the definition of a component with directives and pipes from the compilation scope of\n * a given module.\n * @template C\n * @param {?} componentDef\n * @param {?} transitiveScopes\n * @return {?}\n */\nfunction patchComponentDefWithScope(componentDef, transitiveScopes) {\n    componentDef.directiveDefs = (/**\n     * @return {?}\n     */\n    () => Array.from(transitiveScopes.compilation.directives)\n        .map((/**\n     * @param {?} dir\n     * @return {?}\n     */\n    dir => dir.hasOwnProperty(NG_COMP_DEF) ? (/** @type {?} */ (getComponentDef(dir))) : (/** @type {?} */ (getDirectiveDef(dir)))))\n        .filter((/**\n     * @param {?} def\n     * @return {?}\n     */\n    def => !!def)));\n    componentDef.pipeDefs = (/**\n     * @return {?}\n     */\n    () => Array.from(transitiveScopes.compilation.pipes).map((/**\n     * @param {?} pipe\n     * @return {?}\n     */\n    pipe => (/** @type {?} */ (getPipeDef(pipe))))));\n    componentDef.schemas = transitiveScopes.schemas;\n    // Since we avoid Components/Directives/Pipes recompiling in case there are no overrides, we\n    // may face a problem where previously compiled defs available to a given Component/Directive\n    // are cached in TView and may become stale (in case any of these defs gets recompiled). In\n    // order to avoid this problem, we force fresh TView to be created.\n    componentDef.tView = null;\n}\n/**\n * Compute the pair of transitive scopes (compilation scope and exported scope) for a given module.\n *\n * This operation is memoized and the result is cached on the module's definition. This function can\n * be called on modules with components that have not fully compiled yet, but the result should not\n * be used until they have.\n *\n * @template T\n * @param {?} moduleType module that transitive scope should be calculated for.\n * @return {?}\n */\nfunction transitiveScopesFor(moduleType) {\n    if (!isNgModule(moduleType)) {\n        throw new Error(`${moduleType.name} does not have a module def (ɵmod property)`);\n    }\n    /** @type {?} */\n    const def = (/** @type {?} */ (getNgModuleDef(moduleType)));\n    if (def.transitiveCompileScopes !== null) {\n        return def.transitiveCompileScopes;\n    }\n    /** @type {?} */\n    const scopes = {\n        schemas: def.schemas || null,\n        compilation: {\n            directives: new Set(),\n            pipes: new Set(),\n        },\n        exported: {\n            directives: new Set(),\n            pipes: new Set(),\n        },\n    };\n    maybeUnwrapFn(def.imports).forEach((/**\n     * @template I\n     * @param {?} imported\n     * @return {?}\n     */\n    (imported) => {\n        /** @type {?} */\n        const importedType = (/** @type {?} */ (imported));\n        if (!isNgModule(importedType)) {\n            throw new Error(`Importing ${importedType.name} which does not have a ɵmod property`);\n        }\n        // When this module imports another, the imported module's exported directives and pipes are\n        // added to the compilation scope of this module.\n        /** @type {?} */\n        const importedScope = transitiveScopesFor(importedType);\n        importedScope.exported.directives.forEach((/**\n         * @param {?} entry\n         * @return {?}\n         */\n        entry => scopes.compilation.directives.add(entry)));\n        importedScope.exported.pipes.forEach((/**\n         * @param {?} entry\n         * @return {?}\n         */\n        entry => scopes.compilation.pipes.add(entry)));\n    }));\n    maybeUnwrapFn(def.declarations).forEach((/**\n     * @param {?} declared\n     * @return {?}\n     */\n    declared => {\n        /** @type {?} */\n        const declaredWithDefs = (/** @type {?} */ (declared));\n        if (getPipeDef(declaredWithDefs)) {\n            scopes.compilation.pipes.add(declared);\n        }\n        else {\n            // Either declared has a ɵcmp or ɵdir, or it's a component which hasn't\n            // had its template compiled yet. In either case, it gets added to the compilation's\n            // directives.\n            scopes.compilation.directives.add(declared);\n        }\n    }));\n    maybeUnwrapFn(def.exports).forEach((/**\n     * @template E\n     * @param {?} exported\n     * @return {?}\n     */\n    (exported) => {\n        /** @type {?} */\n        const exportedType = (/** @type {?} */ (exported));\n        // Either the type is a module, a pipe, or a component/directive (which may not have a\n        // ɵcmp as it might be compiled asynchronously).\n        if (isNgModule(exportedType)) {\n            // When this module exports another, the exported module's exported directives and pipes are\n            // added to both the compilation and exported scopes of this module.\n            /** @type {?} */\n            const exportedScope = transitiveScopesFor(exportedType);\n            exportedScope.exported.directives.forEach((/**\n             * @param {?} entry\n             * @return {?}\n             */\n            entry => {\n                scopes.compilation.directives.add(entry);\n                scopes.exported.directives.add(entry);\n            }));\n            exportedScope.exported.pipes.forEach((/**\n             * @param {?} entry\n             * @return {?}\n             */\n            entry => {\n                scopes.compilation.pipes.add(entry);\n                scopes.exported.pipes.add(entry);\n            }));\n        }\n        else if (getPipeDef(exportedType)) {\n            scopes.exported.pipes.add(exportedType);\n        }\n        else {\n            scopes.exported.directives.add(exportedType);\n        }\n    }));\n    def.transitiveCompileScopes = scopes;\n    return scopes;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction expandModuleWithProviders(value) {\n    if (isModuleWithProviders(value)) {\n        return value.ngModule;\n    }\n    return value;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isModuleWithProviders(value) {\n    return ((/** @type {?} */ (value))).ngModule !== undefined;\n}\n/**\n * @template T\n * @param {?} value\n * @return {?}\n */\nfunction isNgModule(value) {\n    return !!getNgModuleDef(value);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/jit/directive.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Compile an Angular component according to its decorator metadata, and patch the resulting\n * component def (ɵcmp) onto the component type.\n *\n * Compilation may be asynchronous (due to the need to resolve URLs for the component template or\n * other resources, for example). In the event that compilation is not immediate, `compileComponent`\n * will enqueue resource resolution into a global queue and will fail to return the `ɵcmp`\n * until the global queue has been resolved with a call to `resolveComponentResources`.\n * @param {?} type\n * @param {?} metadata\n * @return {?}\n */\nfunction compileComponent(type, metadata) {\n    // Initialize ngDevMode. This must be the first statement in compileComponent.\n    // See the `initNgDevMode` docstring for more information.\n    (typeof ngDevMode === 'undefined' || ngDevMode) && initNgDevMode();\n    /** @type {?} */\n    let ngComponentDef = null;\n    // Metadata may have resources which need to be resolved.\n    maybeQueueResolutionOfComponentResources(type, metadata);\n    // Note that we're using the same function as `Directive`, because that's only subset of metadata\n    // that we need to create the ngFactoryDef. We're avoiding using the component metadata\n    // because we'd have to resolve the asynchronous templates.\n    addDirectiveFactoryDef(type, metadata);\n    Object.defineProperty(type, NG_COMP_DEF, {\n        get: (/**\n         * @return {?}\n         */\n        () => {\n            if (ngComponentDef === null) {\n                /** @type {?} */\n                const compiler = getCompilerFacade();\n                if (componentNeedsResolution(metadata)) {\n                    /** @type {?} */\n                    const error = [`Component '${type.name}' is not resolved:`];\n                    if (metadata.templateUrl) {\n                        error.push(` - templateUrl: ${metadata.templateUrl}`);\n                    }\n                    if (metadata.styleUrls && metadata.styleUrls.length) {\n                        error.push(` - styleUrls: ${JSON.stringify(metadata.styleUrls)}`);\n                    }\n                    error.push(`Did you run and wait for 'resolveComponentResources()'?`);\n                    throw new Error(error.join('\\n'));\n                }\n                // This const was called `jitOptions` previously but had to be renamed to `options` because\n                // of a bug with Terser that caused optimized JIT builds to throw a `ReferenceError`.\n                // This bug was investigated in https://github.com/angular/angular-cli/issues/17264.\n                // We should not rename it back until https://github.com/terser/terser/issues/615 is fixed.\n                /** @type {?} */\n                const options = getJitOptions();\n                /** @type {?} */\n                let preserveWhitespaces = metadata.preserveWhitespaces;\n                if (preserveWhitespaces === undefined) {\n                    if (options !== null && options.preserveWhitespaces !== undefined) {\n                        preserveWhitespaces = options.preserveWhitespaces;\n                    }\n                    else {\n                        preserveWhitespaces = false;\n                    }\n                }\n                /** @type {?} */\n                let encapsulation = metadata.encapsulation;\n                if (encapsulation === undefined) {\n                    if (options !== null && options.defaultEncapsulation !== undefined) {\n                        encapsulation = options.defaultEncapsulation;\n                    }\n                    else {\n                        encapsulation = ViewEncapsulation$1.Emulated;\n                    }\n                }\n                /** @type {?} */\n                const templateUrl = metadata.templateUrl || `ng:///${type.name}/template.html`;\n                /** @type {?} */\n                const meta = Object.assign(Object.assign({}, directiveMetadata(type, metadata)), { typeSourceSpan: compiler.createParseSourceSpan('Component', type.name, templateUrl), template: metadata.template || '', preserveWhitespaces, styles: metadata.styles || EMPTY_ARRAY, animations: metadata.animations, directives: [], changeDetection: metadata.changeDetection, pipes: new Map(), encapsulation, interpolation: metadata.interpolation, viewProviders: metadata.viewProviders || null });\n                if (meta.usesInheritance) {\n                    addDirectiveDefToUndecoratedParents(type);\n                }\n                ngComponentDef = compiler.compileComponent(angularCoreEnv, templateUrl, meta);\n                // When NgModule decorator executed, we enqueued the module definition such that\n                // it would only dequeue and add itself as module scope to all of its declarations,\n                // but only if  if all of its declarations had resolved. This call runs the check\n                // to see if any modules that are in the queue can be dequeued and add scope to\n                // their declarations.\n                flushModuleScopingQueueAsMuchAsPossible();\n                // If component compilation is async, then the @NgModule annotation which declares the\n                // component may execute and set an ngSelectorScope property on the component type. This\n                // allows the component to patch itself with directiveDefs from the module after it\n                // finishes compiling.\n                if (hasSelectorScope(type)) {\n                    /** @type {?} */\n                    const scopes = transitiveScopesFor(type.ngSelectorScope);\n                    patchComponentDefWithScope(ngComponentDef, scopes);\n                }\n            }\n            return ngComponentDef;\n        }),\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\n/**\n * @template T\n * @param {?} component\n * @return {?}\n */\nfunction hasSelectorScope(component) {\n    return ((/** @type {?} */ (component))).ngSelectorScope !== undefined;\n}\n/**\n * Compile an Angular directive according to its decorator metadata, and patch the resulting\n * directive def onto the component type.\n *\n * In the event that compilation is not immediate, `compileDirective` will return a `Promise` which\n * will resolve when compilation completes and the directive becomes usable.\n * @param {?} type\n * @param {?} directive\n * @return {?}\n */\nfunction compileDirective(type, directive) {\n    /** @type {?} */\n    let ngDirectiveDef = null;\n    addDirectiveFactoryDef(type, directive || {});\n    Object.defineProperty(type, NG_DIR_DEF, {\n        get: (/**\n         * @return {?}\n         */\n        () => {\n            if (ngDirectiveDef === null) {\n                // `directive` can be null in the case of abstract directives as a base class\n                // that use `@Directive()` with no selector. In that case, pass empty object to the\n                // `directiveMetadata` function instead of null.\n                /** @type {?} */\n                const meta = getDirectiveMetadata(type, directive || {});\n                ngDirectiveDef =\n                    getCompilerFacade().compileDirective(angularCoreEnv, meta.sourceMapUrl, meta.metadata);\n            }\n            return ngDirectiveDef;\n        }),\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\n/**\n * @param {?} type\n * @param {?} metadata\n * @return {?}\n */\nfunction getDirectiveMetadata(type, metadata) {\n    /** @type {?} */\n    const name = type && type.name;\n    /** @type {?} */\n    const sourceMapUrl = `ng:///${name}/ɵdir.js`;\n    /** @type {?} */\n    const compiler = getCompilerFacade();\n    /** @type {?} */\n    const facade = directiveMetadata((/** @type {?} */ (type)), metadata);\n    facade.typeSourceSpan = compiler.createParseSourceSpan('Directive', name, sourceMapUrl);\n    if (facade.usesInheritance) {\n        addDirectiveDefToUndecoratedParents(type);\n    }\n    return { metadata: facade, sourceMapUrl };\n}\n/**\n * @param {?} type\n * @param {?} metadata\n * @return {?}\n */\nfunction addDirectiveFactoryDef(type, metadata) {\n    /** @type {?} */\n    let ngFactoryDef = null;\n    Object.defineProperty(type, NG_FACTORY_DEF, {\n        get: (/**\n         * @return {?}\n         */\n        () => {\n            if (ngFactoryDef === null) {\n                /** @type {?} */\n                const meta = getDirectiveMetadata(type, metadata);\n                /** @type {?} */\n                const compiler = getCompilerFacade();\n                ngFactoryDef = compiler.compileFactory(angularCoreEnv, `ng:///${type.name}/ɵfac.js`, Object.assign(Object.assign({}, meta.metadata), { injectFn: 'directiveInject', target: compiler.R3FactoryTarget.Directive }));\n            }\n            return ngFactoryDef;\n        }),\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction extendsDirectlyFromObject(type) {\n    return Object.getPrototypeOf(type.prototype) === Object.prototype;\n}\n/**\n * Extract the `R3DirectiveMetadata` for a particular directive (either a `Directive` or a\n * `Component`).\n * @param {?} type\n * @param {?} metadata\n * @return {?}\n */\nfunction directiveMetadata(type, metadata) {\n    // Reflect inputs and outputs.\n    /** @type {?} */\n    const reflect = getReflect();\n    /** @type {?} */\n    const propMetadata = reflect.ownPropMetadata(type);\n    return {\n        name: type.name,\n        type: type,\n        typeArgumentCount: 0,\n        selector: metadata.selector !== undefined ? metadata.selector : null,\n        deps: reflectDependencies(type),\n        host: metadata.host || EMPTY_OBJ,\n        propMetadata: propMetadata,\n        inputs: metadata.inputs || EMPTY_ARRAY,\n        outputs: metadata.outputs || EMPTY_ARRAY,\n        queries: extractQueriesMetadata(type, propMetadata, isContentQuery),\n        lifecycle: { usesOnChanges: reflect.hasLifecycleHook(type, 'ngOnChanges') },\n        typeSourceSpan: (/** @type {?} */ (null)),\n        usesInheritance: !extendsDirectlyFromObject(type),\n        exportAs: extractExportAs(metadata.exportAs),\n        providers: metadata.providers || null,\n        viewQueries: extractQueriesMetadata(type, propMetadata, isViewQuery)\n    };\n}\n/**\n * Adds a directive definition to all parent classes of a type that don't have an Angular decorator.\n * @param {?} type\n * @return {?}\n */\nfunction addDirectiveDefToUndecoratedParents(type) {\n    /** @type {?} */\n    const objPrototype = Object.prototype;\n    /** @type {?} */\n    let parent = Object.getPrototypeOf(type.prototype).constructor;\n    // Go up the prototype until we hit `Object`.\n    while (parent && parent !== objPrototype) {\n        // Since inheritance works if the class was annotated already, we only need to add\n        // the def if there are no annotations and the def hasn't been created already.\n        if (!getDirectiveDef(parent) && !getComponentDef(parent) &&\n            shouldAddAbstractDirective(parent)) {\n            compileDirective(parent, null);\n        }\n        parent = Object.getPrototypeOf(parent);\n    }\n}\n/**\n * @param {?} selector\n * @return {?}\n */\nfunction convertToR3QueryPredicate(selector) {\n    return typeof selector === 'string' ? splitByComma(selector) : resolveForwardRef(selector);\n}\n/**\n * @param {?} propertyName\n * @param {?} ann\n * @return {?}\n */\nfunction convertToR3QueryMetadata(propertyName, ann) {\n    return {\n        propertyName: propertyName,\n        predicate: convertToR3QueryPredicate(ann.selector),\n        descendants: ann.descendants,\n        first: ann.first,\n        read: ann.read ? ann.read : null,\n        static: !!ann.static\n    };\n}\n/**\n * @param {?} type\n * @param {?} propMetadata\n * @param {?} isQueryAnn\n * @return {?}\n */\nfunction extractQueriesMetadata(type, propMetadata, isQueryAnn) {\n    /** @type {?} */\n    const queriesMeta = [];\n    for (const field in propMetadata) {\n        if (propMetadata.hasOwnProperty(field)) {\n            /** @type {?} */\n            const annotations = propMetadata[field];\n            annotations.forEach((/**\n             * @param {?} ann\n             * @return {?}\n             */\n            ann => {\n                if (isQueryAnn(ann)) {\n                    if (!ann.selector) {\n                        throw new Error(`Can't construct a query for the property \"${field}\" of ` +\n                            `\"${stringifyForError(type)}\" since the query selector wasn't defined.`);\n                    }\n                    if (annotations.some(isInputAnnotation)) {\n                        throw new Error(`Cannot combine @Input decorators with query decorators`);\n                    }\n                    queriesMeta.push(convertToR3QueryMetadata(field, ann));\n                }\n            }));\n        }\n    }\n    return queriesMeta;\n}\n/**\n * @param {?} exportAs\n * @return {?}\n */\nfunction extractExportAs(exportAs) {\n    return exportAs === undefined ? null : splitByComma(exportAs);\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isContentQuery(value) {\n    /** @type {?} */\n    const name = value.ngMetadataName;\n    return name === 'ContentChild' || name === 'ContentChildren';\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isViewQuery(value) {\n    /** @type {?} */\n    const name = value.ngMetadataName;\n    return name === 'ViewChild' || name === 'ViewChildren';\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isInputAnnotation(value) {\n    return value.ngMetadataName === 'Input';\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction splitByComma(value) {\n    return value.split(',').map((/**\n     * @param {?} piece\n     * @return {?}\n     */\n    piece => piece.trim()));\n}\n/** @type {?} */\nconst LIFECYCLE_HOOKS = [\n    'ngOnChanges', 'ngOnInit', 'ngOnDestroy', 'ngDoCheck', 'ngAfterViewInit', 'ngAfterViewChecked',\n    'ngAfterContentInit', 'ngAfterContentChecked'\n];\n/**\n * @param {?} type\n * @return {?}\n */\nfunction shouldAddAbstractDirective(type) {\n    /** @type {?} */\n    const reflect = getReflect();\n    if (LIFECYCLE_HOOKS.some((/**\n     * @param {?} hookName\n     * @return {?}\n     */\n    hookName => reflect.hasLifecycleHook(type, hookName)))) {\n        return true;\n    }\n    /** @type {?} */\n    const propMetadata = reflect.propMetadata(type);\n    for (const field in propMetadata) {\n        /** @type {?} */\n        const annotations = propMetadata[field];\n        for (let i = 0; i < annotations.length; i++) {\n            /** @type {?} */\n            const current = annotations[i];\n            /** @type {?} */\n            const metadataName = current.ngMetadataName;\n            if (isInputAnnotation(current) || isContentQuery(current) || isViewQuery(current) ||\n                metadataName === 'Output' || metadataName === 'HostBinding' ||\n                metadataName === 'HostListener') {\n                return true;\n            }\n        }\n    }\n    return false;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render3/jit/pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} type\n * @param {?} meta\n * @return {?}\n */\nfunction compilePipe(type, meta) {\n    /** @type {?} */\n    let ngPipeDef = null;\n    /** @type {?} */\n    let ngFactoryDef = null;\n    Object.defineProperty(type, NG_FACTORY_DEF, {\n        get: (/**\n         * @return {?}\n         */\n        () => {\n            if (ngFactoryDef === null) {\n                /** @type {?} */\n                const metadata = getPipeMetadata(type, meta);\n                /** @type {?} */\n                const compiler = getCompilerFacade();\n                ngFactoryDef = compiler.compileFactory(angularCoreEnv, `ng:///${metadata.name}/ɵfac.js`, Object.assign(Object.assign({}, metadata), { injectFn: 'directiveInject', target: compiler.R3FactoryTarget.Pipe }));\n            }\n            return ngFactoryDef;\n        }),\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n    Object.defineProperty(type, NG_PIPE_DEF, {\n        get: (/**\n         * @return {?}\n         */\n        () => {\n            if (ngPipeDef === null) {\n                /** @type {?} */\n                const metadata = getPipeMetadata(type, meta);\n                ngPipeDef = getCompilerFacade().compilePipe(angularCoreEnv, `ng:///${metadata.name}/ɵpipe.js`, metadata);\n            }\n            return ngPipeDef;\n        }),\n        // Make the property configurable in dev mode to allow overriding in tests\n        configurable: !!ngDevMode,\n    });\n}\n/**\n * @param {?} type\n * @param {?} meta\n * @return {?}\n */\nfunction getPipeMetadata(type, meta) {\n    return {\n        type: type,\n        typeArgumentCount: 0,\n        name: type.name,\n        deps: reflectDependencies(type),\n        pipeName: meta.name,\n        pure: meta.pure !== undefined ? meta.pure : true\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/metadata/directives.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Type of the Directive decorator / constructor function.\n * \\@publicApi\n * @record\n */\nfunction DirectiveDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ0$e = /**\n * @param {?=} dir\n * @return {?}\n */\n(dir = {}) => dir, ɵ1$3 = /**\n * @param {?} type\n * @param {?} meta\n * @return {?}\n */\n(type, meta) => SWITCH_COMPILE_DIRECTIVE(type, meta);\n/**\n * Type of the Directive metadata.\n *\n * \\@publicApi\n * @type {?}\n */\nconst Directive = makeDecorator('Directive', (ɵ0$e), undefined, undefined, (ɵ1$3));\n/**\n * Component decorator interface\n *\n * \\@publicApi\n * @record\n */\nfunction ComponentDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ2$1 = /**\n * @param {?=} c\n * @return {?}\n */\n(c = {}) => (Object.assign({ changeDetection: ChangeDetectionStrategy.Default }, c)), ɵ3$1 = /**\n * @param {?} type\n * @param {?} meta\n * @return {?}\n */\n(type, meta) => SWITCH_COMPILE_COMPONENT(type, meta);\n/**\n * Component decorator and metadata.\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Component = makeDecorator('Component', (ɵ2$1), Directive, undefined, (ɵ3$1));\n/**\n * Type of the Pipe decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction PipeDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ4 = /**\n * @param {?} p\n * @return {?}\n */\n(p) => (Object.assign({ pure: true }, p)), ɵ5 = /**\n * @param {?} type\n * @param {?} meta\n * @return {?}\n */\n(type, meta) => SWITCH_COMPILE_PIPE(type, meta);\n/**\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Pipe = makeDecorator('Pipe', (ɵ4), undefined, undefined, (ɵ5));\n/**\n * \\@publicApi\n * @record\n */\nfunction InputDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ6 = /**\n * @param {?=} bindingPropertyName\n * @return {?}\n */\n(bindingPropertyName) => ({ bindingPropertyName });\n/**\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Input = makePropDecorator('Input', (ɵ6));\n/**\n * Type of the Output decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction OutputDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ7 = /**\n * @param {?=} bindingPropertyName\n * @return {?}\n */\n(bindingPropertyName) => ({ bindingPropertyName });\n/**\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst Output = makePropDecorator('Output', (ɵ7));\n/**\n * Type of the HostBinding decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction HostBindingDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ8 = /**\n * @param {?=} hostPropertyName\n * @return {?}\n */\n(hostPropertyName) => ({ hostPropertyName });\n/**\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst HostBinding = makePropDecorator('HostBinding', (ɵ8));\n/**\n * Type of the HostListener decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction HostListenerDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ9 = /**\n * @param {?=} eventName\n * @param {?=} args\n * @return {?}\n */\n(eventName, args) => ({ eventName, args });\n/**\n * Decorator that binds a DOM event to a host listener and supplies configuration metadata.\n * Angular invokes the supplied handler method when the host element emits the specified event,\n * and updates the bound element with the result.\n *\n * If the handler method returns false, applies `preventDefault` on the bound element.\n *\n * \\@usageNotes\n *\n * The following example declares a directive\n * that attaches a click listener to a button and counts clicks.\n *\n * ```ts\n * \\@Directive({selector: 'button[counting]'})\n * class CountClicks {\n *   numberOfClicks = 0;\n *\n * \\@HostListener('click', ['$event.target'])\n *   onClick(btn) {\n *     console.log('button', btn, 'number of clicks:', this.numberOfClicks++);\n *  }\n * }\n *\n * \\@Component({\n *   selector: 'app',\n *   template: '<button counting>Increment</button>',\n * })\n * class App {}\n *\n * ```\n *\n * The following example registers another DOM event handler that listens for key-press events.\n * ``` ts\n * import { HostListener, Component } from \"\\@angular/core\";\n *\n * \\@Component({\n *   selector: 'app',\n *   template: `<h1>Hello, you have pressed keys {{counter}} number of times!</h1> Press any key to\n * increment the counter.\n *   <button (click)=\"resetCounter()\">Reset Counter</button>`\n * })\n * class AppComponent {\n *   counter = 0;\n * \\@HostListener('window:keydown', ['$event'])\n *   handleKeyDown(event: KeyboardEvent) {\n *     this.counter++;\n *   }\n *   resetCounter() {\n *     this.counter = 0;\n *   }\n * }\n * ```\n *\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst HostListener = makePropDecorator('HostListener', (ɵ9));\n/** @type {?} */\nconst SWITCH_COMPILE_COMPONENT__POST_R3__ = compileComponent;\n/** @type {?} */\nconst SWITCH_COMPILE_DIRECTIVE__POST_R3__ = compileDirective;\n/** @type {?} */\nconst SWITCH_COMPILE_PIPE__POST_R3__ = compilePipe;\n/** @type {?} */\nconst SWITCH_COMPILE_COMPONENT__PRE_R3__ = noop;\n/** @type {?} */\nconst SWITCH_COMPILE_DIRECTIVE__PRE_R3__ = noop;\n/** @type {?} */\nconst SWITCH_COMPILE_PIPE__PRE_R3__ = noop;\n/** @type {?} */\nconst SWITCH_COMPILE_COMPONENT = SWITCH_COMPILE_COMPONENT__POST_R3__;\n/** @type {?} */\nconst SWITCH_COMPILE_DIRECTIVE = SWITCH_COMPILE_DIRECTIVE__POST_R3__;\n/** @type {?} */\nconst SWITCH_COMPILE_PIPE = SWITCH_COMPILE_PIPE__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/metadata/ng_module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Represents the expansion of an `NgModule` into its scopes.\n *\n * A scope is a set of directives and pipes that are visible in a particular context. Each\n * `NgModule` has two scopes. The `compilation` scope is the set of directives and pipes that will\n * be recognized in the templates of components declared by the module. The `exported` scope is the\n * set of directives and pipes exported by a module (that is, module B's exported scope gets added\n * to module A's compilation scope when module A imports B).\n * @record\n */\nfunction NgModuleTransitiveScopes() { }\nif (false) {\n    /** @type {?} */\n    NgModuleTransitiveScopes.prototype.compilation;\n    /** @type {?} */\n    NgModuleTransitiveScopes.prototype.exported;\n    /** @type {?} */\n    NgModuleTransitiveScopes.prototype.schemas;\n}\n/**\n * Runtime link information for NgModules.\n *\n * This is the internal data structure used by the runtime to assemble components, directives,\n * pipes, and injectors.\n *\n * NOTE: Always use `ɵɵdefineNgModule` function to create this object,\n * never create the object directly since the shape of this object\n * can change between versions.\n * @record\n * @template T\n */\nfunction NgModuleDef() { }\nif (false) {\n    /**\n     * Token representing the module. Used by DI.\n     * @type {?}\n     */\n    NgModuleDef.prototype.type;\n    /**\n     * List of components to bootstrap.\n     * @type {?}\n     */\n    NgModuleDef.prototype.bootstrap;\n    /**\n     * List of components, directives, and pipes declared by this module.\n     * @type {?}\n     */\n    NgModuleDef.prototype.declarations;\n    /**\n     * List of modules or `ModuleWithProviders` imported by this module.\n     * @type {?}\n     */\n    NgModuleDef.prototype.imports;\n    /**\n     * List of modules, `ModuleWithProviders`, components, directives, or pipes exported by this\n     * module.\n     * @type {?}\n     */\n    NgModuleDef.prototype.exports;\n    /**\n     * Cached value of computed `transitiveCompileScopes` for this module.\n     *\n     * This should never be read directly, but accessed via `transitiveScopesFor`.\n     * @type {?}\n     */\n    NgModuleDef.prototype.transitiveCompileScopes;\n    /**\n     * The set of schemas that declare elements to be allowed in the NgModule.\n     * @type {?}\n     */\n    NgModuleDef.prototype.schemas;\n    /**\n     * Unique ID for the module with which it should be registered.\n     * @type {?}\n     */\n    NgModuleDef.prototype.id;\n}\n/**\n * A wrapper around an NgModule that associates it with the providers.\n *\n * @param T the module type. In Ivy applications, this must be explicitly\n * provided.\n *\n * Note that using ModuleWithProviders without a generic type is deprecated.\n * The generic will become required in a future version of Angular.\n *\n * \\@publicApi\n * @record\n * @template T\n */\nfunction ModuleWithProviders() { }\nif (false) {\n    /** @type {?} */\n    ModuleWithProviders.prototype.ngModule;\n    /** @type {?|undefined} */\n    ModuleWithProviders.prototype.providers;\n}\n/**\n * Type of the NgModule decorator / constructor function.\n *\n * \\@publicApi\n * @record\n */\nfunction NgModuleDecorator() { }\n// WARNING: interface has both a type and a value, skipping emit\nconst ɵ0$f = /**\n * @param {?} ngModule\n * @return {?}\n */\n(ngModule) => ngModule, ɵ1$4 = /**\n * Decorator that marks the following class as an NgModule, and supplies\n * configuration metadata for it.\n *\n * * The `declarations` and `entryComponents` options configure the compiler\n * with information about what belongs to the NgModule.\n * * The `providers` options configures the NgModule's injector to provide\n * dependencies the NgModule members.\n * * The `imports` and `exports` options bring in members from other modules, and make\n * this module's members available to others.\n * @param {?} type\n * @param {?} meta\n * @return {?}\n */\n(type, meta) => SWITCH_COMPILE_NGMODULE(type, meta);\n/**\n * \\@Annotation\n * \\@publicApi\n * @type {?}\n */\nconst NgModule = makeDecorator('NgModule', (ɵ0$f), undefined, undefined, (ɵ1$4));\n/**\n * \\@description\n * Hook for manual bootstrapping of the application instead of using bootstrap array in \\@NgModule\n * annotation.\n *\n * Reference to the current application is provided as a parameter.\n *\n * See [\"Bootstrapping\"](guide/bootstrapping) and [\"Entry components\"](guide/entry-components).\n *\n * \\@usageNotes\n * ```typescript\n * class AppModule implements DoBootstrap {\n *   ngDoBootstrap(appRef: ApplicationRef) {\n *     appRef.bootstrap(AppComponent); // Or some other component\n *   }\n * }\n * ```\n *\n * \\@publicApi\n * @record\n */\nfunction DoBootstrap() { }\nif (false) {\n    /**\n     * @param {?} appRef\n     * @return {?}\n     */\n    DoBootstrap.prototype.ngDoBootstrap = function (appRef) { };\n}\n/**\n * @param {?} moduleType\n * @param {?=} metadata\n * @return {?}\n */\nfunction preR3NgModuleCompile(moduleType, metadata) {\n    /** @type {?} */\n    let imports = (metadata && metadata.imports) || [];\n    if (metadata && metadata.exports) {\n        imports = [...imports, metadata.exports];\n    }\n    ((/** @type {?} */ (moduleType))).ɵinj = ɵɵdefineInjector({\n        factory: convertInjectableProviderToFactory(moduleType, { useClass: moduleType }),\n        providers: metadata && metadata.providers,\n        imports: imports,\n    });\n}\n/** @type {?} */\nconst SWITCH_COMPILE_NGMODULE__POST_R3__ = compileNgModule;\n/** @type {?} */\nconst SWITCH_COMPILE_NGMODULE__PRE_R3__ = preR3NgModuleCompile;\n/** @type {?} */\nconst SWITCH_COMPILE_NGMODULE = SWITCH_COMPILE_NGMODULE__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/metadata.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/application_init.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An injection token that allows you to provide one or more initialization functions.\n * These function are injected at application startup and executed during\n * app initialization. If any of these functions returns a Promise, initialization\n * does not complete until the Promise is resolved.\n *\n * You can, for example, create a factory function that loads language data\n * or an external configuration, and provide that function to the `APP_INITIALIZER` token.\n * That way, the function is executed during the application bootstrap process,\n * and the needed data is available on startup.\n *\n * \\@publicApi\n * @type {?}\n */\nconst APP_INITIALIZER = new InjectionToken('Application Initializer');\n/**\n * A class that reflects the state of running {\\@link APP_INITIALIZER}s.\n *\n * \\@publicApi\n */\nclass ApplicationInitStatus {\n    /**\n     * @param {?} appInits\n     */\n    constructor(appInits) {\n        this.appInits = appInits;\n        this.initialized = false;\n        this.done = false;\n        this.donePromise = new Promise((/**\n         * @param {?} res\n         * @param {?} rej\n         * @return {?}\n         */\n        (res, rej) => {\n            this.resolve = res;\n            this.reject = rej;\n        }));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    runInitializers() {\n        if (this.initialized) {\n            return;\n        }\n        /** @type {?} */\n        const asyncInitPromises = [];\n        /** @type {?} */\n        const complete = (/**\n         * @return {?}\n         */\n        () => {\n            ((/** @type {?} */ (this))).done = true;\n            this.resolve();\n        });\n        if (this.appInits) {\n            for (let i = 0; i < this.appInits.length; i++) {\n                /** @type {?} */\n                const initResult = this.appInits[i]();\n                if (isPromise(initResult)) {\n                    asyncInitPromises.push(initResult);\n                }\n            }\n        }\n        Promise.all(asyncInitPromises)\n            .then((/**\n         * @return {?}\n         */\n        () => {\n            complete();\n        }))\n            .catch((/**\n         * @param {?} e\n         * @return {?}\n         */\n        e => {\n            this.reject(e);\n        }));\n        if (asyncInitPromises.length === 0) {\n            complete();\n        }\n        this.initialized = true;\n    }\n}\nApplicationInitStatus.ɵfac = function ApplicationInitStatus_Factory(t) { return new (t || ApplicationInitStatus)(ɵɵinject(APP_INITIALIZER, 8)); };\nApplicationInitStatus.ɵprov = ɵɵdefineInjectable({ token: ApplicationInitStatus, factory: ApplicationInitStatus.ɵfac });\n/** @nocollapse */\nApplicationInitStatus.ctorParameters = () => [\n    { type: Array, decorators: [{ type: Inject, args: [APP_INITIALIZER,] }, { type: Optional }] }\n];\n/*@__PURE__*/ (function () { setClassMetadata(ApplicationInitStatus, [{\n        type: Injectable\n    }], function () { return [{ type: Array, decorators: [{\n                type: Inject,\n                args: [APP_INITIALIZER]\n            }, {\n                type: Optional\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationInitStatus.prototype.resolve;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationInitStatus.prototype.reject;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationInitStatus.prototype.initialized;\n    /** @type {?} */\n    ApplicationInitStatus.prototype.donePromise;\n    /** @type {?} */\n    ApplicationInitStatus.prototype.done;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationInitStatus.prototype.appInits;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/application_tokens.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A DI Token representing a unique string id assigned to the application by Angular and used\n * primarily for prefixing application attributes and CSS styles when\n * {\\@link ViewEncapsulation#Emulated ViewEncapsulation.Emulated} is being used.\n *\n * If you need to avoid randomly generated value to be used as an application id, you can provide\n * a custom value via a DI provider <!-- TODO: provider --> configuring the root {\\@link Injector}\n * using this token.\n * \\@publicApi\n * @type {?}\n */\nconst APP_ID = new InjectionToken('AppId');\n/**\n * @return {?}\n */\nfunction _appIdRandomProviderFactory() {\n    return `${_randomChar()}${_randomChar()}${_randomChar()}`;\n}\n/**\n * Providers that will generate a random APP_ID_TOKEN.\n * \\@publicApi\n * @type {?}\n */\nconst APP_ID_RANDOM_PROVIDER = {\n    provide: APP_ID,\n    useFactory: _appIdRandomProviderFactory,\n    deps: (/** @type {?} */ ([])),\n};\n/**\n * @return {?}\n */\nfunction _randomChar() {\n    return String.fromCharCode(97 + Math.floor(Math.random() * 25));\n}\n/**\n * A function that will be executed when a platform is initialized.\n * \\@publicApi\n * @type {?}\n */\nconst PLATFORM_INITIALIZER = new InjectionToken('Platform Initializer');\n/**\n * A token that indicates an opaque platform id.\n * \\@publicApi\n * @type {?}\n */\nconst PLATFORM_ID = new InjectionToken('Platform ID');\n/**\n * All callbacks provided via this token will be called for every component that is bootstrapped.\n * Signature of the callback:\n *\n * `(componentRef: ComponentRef) => void`.\n *\n * \\@publicApi\n * @type {?}\n */\nconst APP_BOOTSTRAP_LISTENER = new InjectionToken('appBootstrapListener');\n/**\n * A token which indicates the root directory of the application\n * \\@publicApi\n * @type {?}\n */\nconst PACKAGE_ROOT_URL = new InjectionToken('Application Packages Root URL');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/console.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass Console {\n    /**\n     * @param {?} message\n     * @return {?}\n     */\n    log(message) {\n        // tslint:disable-next-line:no-console\n        console.log(message);\n    }\n    // Note: for reporting errors use `DOM.logError()` as it is platform specific\n    /**\n     * @param {?} message\n     * @return {?}\n     */\n    warn(message) {\n        // tslint:disable-next-line:no-console\n        console.warn(message);\n    }\n}\nConsole.ɵfac = function Console_Factory(t) { return new (t || Console)(); };\nConsole.ɵprov = ɵɵdefineInjectable({ token: Console, factory: Console.ɵfac });\n/*@__PURE__*/ (function () { setClassMetadata(Console, [{\n        type: Injectable\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/i18n/tokens.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Provide this token to set the locale of your application.\n * It is used for i18n extraction, by i18n pipes (DatePipe, I18nPluralPipe, CurrencyPipe,\n * DecimalPipe and PercentPipe) and by ICU expressions.\n *\n * See the [i18n guide](guide/i18n#setting-up-locale) for more information.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * import { LOCALE_ID } from '\\@angular/core';\n * import { platformBrowserDynamic } from '\\@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: LOCALE_ID, useValue: 'en-US' }]\n * });\n * ```\n *\n * \\@publicApi\n * @type {?}\n */\nconst LOCALE_ID$1 = new InjectionToken('LocaleId');\n/**\n * Provide this token to set the default currency code your application uses for\n * CurrencyPipe when there is no currency code passed into it. This is only used by\n * CurrencyPipe and has no relation to locale currency. Defaults to USD if not configured.\n *\n * See the [i18n guide](guide/i18n#setting-up-locale) for more information.\n *\n * <div class=\"alert is-helpful\">\n *\n * **Deprecation notice:**\n *\n * The default currency code is currently always `USD` but this is deprecated from v9.\n *\n * **In v10 the default currency code will be taken from the current locale.**\n *\n * If you need the previous behavior then set it by creating a `DEFAULT_CURRENCY_CODE` provider in\n * your application `NgModule`:\n *\n * ```ts\n * {provide: DEFAULT_CURRENCY_CODE, useValue: 'USD'}\n * ```\n *\n * </div>\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * import { platformBrowserDynamic } from '\\@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: DEFAULT_CURRENCY_CODE, useValue: 'EUR' }]\n * });\n * ```\n *\n * \\@publicApi\n * @type {?}\n */\nconst DEFAULT_CURRENCY_CODE = new InjectionToken('DefaultCurrencyCode');\n/**\n * Use this token at bootstrap to provide the content of your translation file (`xtb`,\n * `xlf` or `xlf2`) when you want to translate your application in another language.\n *\n * See the [i18n guide](guide/i18n#merge) for more information.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * import { TRANSLATIONS } from '\\@angular/core';\n * import { platformBrowserDynamic } from '\\@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * // content of your translation file\n * const translations = '....';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: TRANSLATIONS, useValue: translations }]\n * });\n * ```\n *\n * \\@publicApi\n * @type {?}\n */\nconst TRANSLATIONS = new InjectionToken('Translations');\n/**\n * Provide this token at bootstrap to set the format of your {\\@link TRANSLATIONS}: `xtb`,\n * `xlf` or `xlf2`.\n *\n * See the [i18n guide](guide/i18n#merge) for more information.\n *\n * \\@usageNotes\n * ### Example\n *\n * ```typescript\n * import { TRANSLATIONS_FORMAT } from '\\@angular/core';\n * import { platformBrowserDynamic } from '\\@angular/platform-browser-dynamic';\n * import { AppModule } from './app/app.module';\n *\n * platformBrowserDynamic().bootstrapModule(AppModule, {\n *   providers: [{provide: TRANSLATIONS_FORMAT, useValue: 'xlf' }]\n * });\n * ```\n *\n * \\@publicApi\n * @type {?}\n */\nconst TRANSLATIONS_FORMAT = new InjectionToken('TranslationsFormat');\n/** @enum {number} */\nconst MissingTranslationStrategy = {\n    Error: 0,\n    Warning: 1,\n    Ignore: 2,\n};\nMissingTranslationStrategy[MissingTranslationStrategy.Error] = 'Error';\nMissingTranslationStrategy[MissingTranslationStrategy.Warning] = 'Warning';\nMissingTranslationStrategy[MissingTranslationStrategy.Ignore] = 'Ignore';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/ivy_switch.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst SWITCH_IVY_ENABLED__POST_R3__ = true;\n/** @type {?} */\nconst SWITCH_IVY_ENABLED__PRE_R3__ = false;\n/** @type {?} */\nconst ivyEnabled = SWITCH_IVY_ENABLED__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/compiler.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Combination of NgModuleFactory and ComponentFactorys.\n *\n * \\@publicApi\n * @template T\n */\nclass ModuleWithComponentFactories {\n    /**\n     * @param {?} ngModuleFactory\n     * @param {?} componentFactories\n     */\n    constructor(ngModuleFactory, componentFactories) {\n        this.ngModuleFactory = ngModuleFactory;\n        this.componentFactories = componentFactories;\n    }\n}\nif (false) {\n    /** @type {?} */\n    ModuleWithComponentFactories.prototype.ngModuleFactory;\n    /** @type {?} */\n    ModuleWithComponentFactories.prototype.componentFactories;\n}\n/**\n * @return {?}\n */\nfunction _throwError() {\n    throw new Error(`Runtime compiler is not loaded`);\n}\n/** @type {?} */\nconst Compiler_compileModuleSync__PRE_R3__ = (/** @type {?} */ (_throwError));\n/** @type {?} */\nconst Compiler_compileModuleSync__POST_R3__ = (/**\n * @template T\n * @param {?} moduleType\n * @return {?}\n */\nfunction (moduleType) {\n    return new NgModuleFactory$1(moduleType);\n});\n/** @type {?} */\nconst Compiler_compileModuleSync = Compiler_compileModuleSync__POST_R3__;\n/** @type {?} */\nconst Compiler_compileModuleAsync__PRE_R3__ = (/** @type {?} */ (_throwError));\n/** @type {?} */\nconst Compiler_compileModuleAsync__POST_R3__ = (/**\n * @template T\n * @param {?} moduleType\n * @return {?}\n */\nfunction (moduleType) {\n    return Promise.resolve(Compiler_compileModuleSync__POST_R3__(moduleType));\n});\n/** @type {?} */\nconst Compiler_compileModuleAsync = Compiler_compileModuleAsync__POST_R3__;\n/** @type {?} */\nconst Compiler_compileModuleAndAllComponentsSync__PRE_R3__ = (/** @type {?} */ (_throwError));\n/** @type {?} */\nconst Compiler_compileModuleAndAllComponentsSync__POST_R3__ = (/**\n * @template T\n * @param {?} moduleType\n * @return {?}\n */\nfunction (moduleType) {\n    /** @type {?} */\n    const ngModuleFactory = Compiler_compileModuleSync__POST_R3__(moduleType);\n    /** @type {?} */\n    const moduleDef = (/** @type {?} */ (getNgModuleDef(moduleType)));\n    /** @type {?} */\n    const componentFactories = maybeUnwrapFn(moduleDef.declarations)\n        .reduce((/**\n     * @param {?} factories\n     * @param {?} declaration\n     * @return {?}\n     */\n    (factories, declaration) => {\n        /** @type {?} */\n        const componentDef = getComponentDef(declaration);\n        componentDef && factories.push(new ComponentFactory$1(componentDef));\n        return factories;\n    }), (/** @type {?} */ ([])));\n    return new ModuleWithComponentFactories(ngModuleFactory, componentFactories);\n});\n/** @type {?} */\nconst Compiler_compileModuleAndAllComponentsSync = Compiler_compileModuleAndAllComponentsSync__POST_R3__;\n/** @type {?} */\nconst Compiler_compileModuleAndAllComponentsAsync__PRE_R3__ = (/** @type {?} */ (_throwError));\n/** @type {?} */\nconst Compiler_compileModuleAndAllComponentsAsync__POST_R3__ = (/**\n * @template T\n * @param {?} moduleType\n * @return {?}\n */\nfunction (moduleType) {\n    return Promise.resolve(Compiler_compileModuleAndAllComponentsSync__POST_R3__(moduleType));\n});\n/** @type {?} */\nconst Compiler_compileModuleAndAllComponentsAsync = Compiler_compileModuleAndAllComponentsAsync__POST_R3__;\n/**\n * Low-level service for running the angular compiler during runtime\n * to create {\\@link ComponentFactory}s, which\n * can later be used to create and render a Component instance.\n *\n * Each `\\@NgModule` provides an own `Compiler` to its injector,\n * that will use the directives/pipes of the ng module for compilation\n * of components.\n *\n * \\@publicApi\n */\nclass Compiler {\n    constructor() {\n        /**\n         * Compiles the given NgModule and all of its components. All templates of the components listed\n         * in `entryComponents` have to be inlined.\n         */\n        this.compileModuleSync = Compiler_compileModuleSync;\n        /**\n         * Compiles the given NgModule and all of its components\n         */\n        this.compileModuleAsync = Compiler_compileModuleAsync;\n        /**\n         * Same as {\\@link #compileModuleSync} but also creates ComponentFactories for all components.\n         */\n        this.compileModuleAndAllComponentsSync = Compiler_compileModuleAndAllComponentsSync;\n        /**\n         * Same as {\\@link #compileModuleAsync} but also creates ComponentFactories for all components.\n         */\n        this.compileModuleAndAllComponentsAsync = Compiler_compileModuleAndAllComponentsAsync;\n    }\n    /**\n     * Clears all caches.\n     * @return {?}\n     */\n    clearCache() { }\n    /**\n     * Clears the cache for the given component/ngModule.\n     * @param {?} type\n     * @return {?}\n     */\n    clearCacheFor(type) { }\n    /**\n     * Returns the id for a given NgModule, if one is defined and known to the compiler.\n     * @param {?} moduleType\n     * @return {?}\n     */\n    getModuleId(moduleType) {\n        return undefined;\n    }\n}\nCompiler.ɵfac = function Compiler_Factory(t) { return new (t || Compiler)(); };\nCompiler.ɵprov = ɵɵdefineInjectable({ token: Compiler, factory: Compiler.ɵfac });\n/*@__PURE__*/ (function () { setClassMetadata(Compiler, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * Compiles the given NgModule and all of its components. All templates of the components listed\n     * in `entryComponents` have to be inlined.\n     * @type {?}\n     */\n    Compiler.prototype.compileModuleSync;\n    /**\n     * Compiles the given NgModule and all of its components\n     * @type {?}\n     */\n    Compiler.prototype.compileModuleAsync;\n    /**\n     * Same as {\\@link #compileModuleSync} but also creates ComponentFactories for all components.\n     * @type {?}\n     */\n    Compiler.prototype.compileModuleAndAllComponentsSync;\n    /**\n     * Same as {\\@link #compileModuleAsync} but also creates ComponentFactories for all components.\n     * @type {?}\n     */\n    Compiler.prototype.compileModuleAndAllComponentsAsync;\n}\n/**\n * Token to provide CompilerOptions in the platform injector.\n *\n * \\@publicApi\n * @type {?}\n */\nconst COMPILER_OPTIONS = new InjectionToken('compilerOptions');\n/**\n * A factory for creating a Compiler\n *\n * \\@publicApi\n * @abstract\n */\nclass CompilerFactory {\n}\nif (false) {\n    /**\n     * @abstract\n     * @param {?=} options\n     * @return {?}\n     */\n    CompilerFactory.prototype.createCompiler = function (options) { };\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nconst promise = (() => Promise.resolve(0))();\nfunction scheduleMicroTask(fn) {\n    if (typeof Zone === 'undefined') {\n        // use promise to schedule microTask instead of use Zone\n        promise.then(() => {\n            fn && fn.apply(null, null);\n        });\n    }\n    else {\n        Zone.current.scheduleMicroTask('scheduleMicrotask', fn);\n    }\n}\n\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction getNativeRequestAnimationFrame() {\n    let nativeRequestAnimationFrame = _global['requestAnimationFrame'];\n    let nativeCancelAnimationFrame = _global['cancelAnimationFrame'];\n    if (typeof Zone !== 'undefined' && nativeRequestAnimationFrame && nativeCancelAnimationFrame) {\n        // use unpatched version of requestAnimationFrame(native delegate) if possible\n        // to avoid another Change detection\n        const unpatchedRequestAnimationFrame = nativeRequestAnimationFrame[Zone.__symbol__('OriginalDelegate')];\n        if (unpatchedRequestAnimationFrame) {\n            nativeRequestAnimationFrame = unpatchedRequestAnimationFrame;\n        }\n        const unpatchedCancelAnimationFrame = nativeCancelAnimationFrame[Zone.__symbol__('OriginalDelegate')];\n        if (unpatchedCancelAnimationFrame) {\n            nativeCancelAnimationFrame = unpatchedCancelAnimationFrame;\n        }\n    }\n    return { nativeRequestAnimationFrame, nativeCancelAnimationFrame };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/zone/ng_zone.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An injectable service for executing work inside or outside of the Angular zone.\n *\n * The most common use of this service is to optimize performance when starting a work consisting of\n * one or more asynchronous tasks that don't require UI updates or error handling to be handled by\n * Angular. Such tasks can be kicked off via {\\@link #runOutsideAngular} and if needed, these tasks\n * can reenter the Angular zone via {\\@link #run}.\n *\n * <!-- TODO: add/fix links to:\n *   - docs explaining zones and the use of zones in Angular and change-detection\n *   - link to runOutsideAngular/run (throughout this file!)\n *   -->\n *\n * \\@usageNotes\n * ### Example\n *\n * ```\n * import {Component, NgZone} from '\\@angular/core';\n * import {NgIf} from '\\@angular/common';\n *\n * \\@Component({\n *   selector: 'ng-zone-demo',\n *   template: `\n *     <h2>Demo: NgZone</h2>\n *\n *     <p>Progress: {{progress}}%</p>\n *     <p *ngIf=\"progress >= 100\">Done processing {{label}} of Angular zone!</p>\n *\n *     <button (click)=\"processWithinAngularZone()\">Process within Angular zone</button>\n *     <button (click)=\"processOutsideOfAngularZone()\">Process outside of Angular zone</button>\n *   `,\n * })\n * export class NgZoneDemo {\n *   progress: number = 0;\n *   label: string;\n *\n *   constructor(private _ngZone: NgZone) {}\n *\n *   // Loop inside the Angular zone\n *   // so the UI DOES refresh after each setTimeout cycle\n *   processWithinAngularZone() {\n *     this.label = 'inside';\n *     this.progress = 0;\n *     this._increaseProgress(() => console.log('Inside Done!'));\n *   }\n *\n *   // Loop outside of the Angular zone\n *   // so the UI DOES NOT refresh after each setTimeout cycle\n *   processOutsideOfAngularZone() {\n *     this.label = 'outside';\n *     this.progress = 0;\n *     this._ngZone.runOutsideAngular(() => {\n *       this._increaseProgress(() => {\n *         // reenter the Angular zone and display done\n *         this._ngZone.run(() => { console.log('Outside Done!'); });\n *       });\n *     });\n *   }\n *\n *   _increaseProgress(doneCallback: () => void) {\n *     this.progress += 1;\n *     console.log(`Current progress: ${this.progress}%`);\n *\n *     if (this.progress < 100) {\n *       window.setTimeout(() => this._increaseProgress(doneCallback), 10);\n *     } else {\n *       doneCallback();\n *     }\n *   }\n * }\n * ```\n *\n * \\@publicApi\n */\nclass NgZone {\n    /**\n     * @param {?} __0\n     */\n    constructor({ enableLongStackTrace = false, shouldCoalesceEventChangeDetection = false }) {\n        this.hasPendingMacrotasks = false;\n        this.hasPendingMicrotasks = false;\n        /**\n         * Whether there are no outstanding microtasks or macrotasks.\n         */\n        this.isStable = true;\n        /**\n         * Notifies when code enters Angular Zone. This gets fired first on VM Turn.\n         */\n        this.onUnstable = new EventEmitter(false);\n        /**\n         * Notifies when there is no more microtasks enqueued in the current VM Turn.\n         * This is a hint for Angular to do change detection, which may enqueue more microtasks.\n         * For this reason this event can fire multiple times per VM Turn.\n         */\n        this.onMicrotaskEmpty = new EventEmitter(false);\n        /**\n         * Notifies when the last `onMicrotaskEmpty` has run and there are no more microtasks, which\n         * implies we are about to relinquish VM turn.\n         * This event gets called just once.\n         */\n        this.onStable = new EventEmitter(false);\n        /**\n         * Notifies that an error has been delivered.\n         */\n        this.onError = new EventEmitter(false);\n        if (typeof Zone == 'undefined') {\n            throw new Error(`In this configuration Angular requires Zone.js`);\n        }\n        Zone.assertZonePatched();\n        /** @type {?} */\n        const self = (/** @type {?} */ ((/** @type {?} */ (this))));\n        self._nesting = 0;\n        self._outer = self._inner = Zone.current;\n        if (((/** @type {?} */ (Zone)))['wtfZoneSpec']) {\n            self._inner = self._inner.fork(((/** @type {?} */ (Zone)))['wtfZoneSpec']);\n        }\n        if (((/** @type {?} */ (Zone)))['TaskTrackingZoneSpec']) {\n            self._inner = self._inner.fork(new ((/** @type {?} */ (((/** @type {?} */ (Zone)))['TaskTrackingZoneSpec']))));\n        }\n        if (enableLongStackTrace && ((/** @type {?} */ (Zone)))['longStackTraceZoneSpec']) {\n            self._inner = self._inner.fork(((/** @type {?} */ (Zone)))['longStackTraceZoneSpec']);\n        }\n        self.shouldCoalesceEventChangeDetection = shouldCoalesceEventChangeDetection;\n        self.lastRequestAnimationFrameId = -1;\n        self.nativeRequestAnimationFrame = getNativeRequestAnimationFrame().nativeRequestAnimationFrame;\n        forkInnerZoneWithAngularBehavior(self);\n    }\n    /**\n     * @return {?}\n     */\n    static isInAngularZone() {\n        return Zone.current.get('isAngularZone') === true;\n    }\n    /**\n     * @return {?}\n     */\n    static assertInAngularZone() {\n        if (!NgZone.isInAngularZone()) {\n            throw new Error('Expected to be in Angular Zone, but it is not!');\n        }\n    }\n    /**\n     * @return {?}\n     */\n    static assertNotInAngularZone() {\n        if (NgZone.isInAngularZone()) {\n            throw new Error('Expected to not be in Angular Zone, but it is!');\n        }\n    }\n    /**\n     * Executes the `fn` function synchronously within the Angular zone and returns value returned by\n     * the function.\n     *\n     * Running functions via `run` allows you to reenter Angular zone from a task that was executed\n     * outside of the Angular zone (typically started via {\\@link #runOutsideAngular}).\n     *\n     * Any future tasks or microtasks scheduled from within this function will continue executing from\n     * within the Angular zone.\n     *\n     * If a synchronous error happens it will be rethrown and not reported via `onError`.\n     * @template T\n     * @param {?} fn\n     * @param {?=} applyThis\n     * @param {?=} applyArgs\n     * @return {?}\n     */\n    run(fn, applyThis, applyArgs) {\n        return (/** @type {?} */ (((/** @type {?} */ ((/** @type {?} */ (this)))))._inner.run(fn, applyThis, applyArgs)));\n    }\n    /**\n     * Executes the `fn` function synchronously within the Angular zone as a task and returns value\n     * returned by the function.\n     *\n     * Running functions via `run` allows you to reenter Angular zone from a task that was executed\n     * outside of the Angular zone (typically started via {\\@link #runOutsideAngular}).\n     *\n     * Any future tasks or microtasks scheduled from within this function will continue executing from\n     * within the Angular zone.\n     *\n     * If a synchronous error happens it will be rethrown and not reported via `onError`.\n     * @template T\n     * @param {?} fn\n     * @param {?=} applyThis\n     * @param {?=} applyArgs\n     * @param {?=} name\n     * @return {?}\n     */\n    runTask(fn, applyThis, applyArgs, name) {\n        /** @type {?} */\n        const zone = ((/** @type {?} */ ((/** @type {?} */ (this)))))._inner;\n        /** @type {?} */\n        const task = zone.scheduleEventTask('NgZoneEvent: ' + name, fn, EMPTY_PAYLOAD, noop$1, noop$1);\n        try {\n            return (/** @type {?} */ (zone.runTask(task, applyThis, applyArgs)));\n        }\n        finally {\n            zone.cancelTask(task);\n        }\n    }\n    /**\n     * Same as `run`, except that synchronous errors are caught and forwarded via `onError` and not\n     * rethrown.\n     * @template T\n     * @param {?} fn\n     * @param {?=} applyThis\n     * @param {?=} applyArgs\n     * @return {?}\n     */\n    runGuarded(fn, applyThis, applyArgs) {\n        return (/** @type {?} */ (((/** @type {?} */ ((/** @type {?} */ (this)))))._inner.runGuarded(fn, applyThis, applyArgs)));\n    }\n    /**\n     * Executes the `fn` function synchronously in Angular's parent zone and returns value returned by\n     * the function.\n     *\n     * Running functions via {\\@link #runOutsideAngular} allows you to escape Angular's zone and do\n     * work that\n     * doesn't trigger Angular change-detection or is subject to Angular's error handling.\n     *\n     * Any future tasks or microtasks scheduled from within this function will continue executing from\n     * outside of the Angular zone.\n     *\n     * Use {\\@link #run} to reenter the Angular zone and do work that updates the application model.\n     * @template T\n     * @param {?} fn\n     * @return {?}\n     */\n    runOutsideAngular(fn) {\n        return (/** @type {?} */ (((/** @type {?} */ ((/** @type {?} */ (this)))))._outer.run(fn)));\n    }\n}\nif (false) {\n    /** @type {?} */\n    NgZone.prototype.hasPendingMacrotasks;\n    /** @type {?} */\n    NgZone.prototype.hasPendingMicrotasks;\n    /**\n     * Whether there are no outstanding microtasks or macrotasks.\n     * @type {?}\n     */\n    NgZone.prototype.isStable;\n    /**\n     * Notifies when code enters Angular Zone. This gets fired first on VM Turn.\n     * @type {?}\n     */\n    NgZone.prototype.onUnstable;\n    /**\n     * Notifies when there is no more microtasks enqueued in the current VM Turn.\n     * This is a hint for Angular to do change detection, which may enqueue more microtasks.\n     * For this reason this event can fire multiple times per VM Turn.\n     * @type {?}\n     */\n    NgZone.prototype.onMicrotaskEmpty;\n    /**\n     * Notifies when the last `onMicrotaskEmpty` has run and there are no more microtasks, which\n     * implies we are about to relinquish VM turn.\n     * This event gets called just once.\n     * @type {?}\n     */\n    NgZone.prototype.onStable;\n    /**\n     * Notifies that an error has been delivered.\n     * @type {?}\n     */\n    NgZone.prototype.onError;\n}\n/**\n * @return {?}\n */\nfunction noop$1() { }\n/** @type {?} */\nconst EMPTY_PAYLOAD = {};\n/**\n * @record\n */\nfunction NgZonePrivate() { }\nif (false) {\n    /** @type {?} */\n    NgZonePrivate.prototype._outer;\n    /** @type {?} */\n    NgZonePrivate.prototype._inner;\n    /** @type {?} */\n    NgZonePrivate.prototype._nesting;\n    /** @type {?} */\n    NgZonePrivate.prototype._hasPendingMicrotasks;\n    /** @type {?} */\n    NgZonePrivate.prototype.hasPendingMacrotasks;\n    /** @type {?} */\n    NgZonePrivate.prototype.hasPendingMicrotasks;\n    /** @type {?} */\n    NgZonePrivate.prototype.lastRequestAnimationFrameId;\n    /** @type {?} */\n    NgZonePrivate.prototype.isStable;\n    /** @type {?} */\n    NgZonePrivate.prototype.shouldCoalesceEventChangeDetection;\n    /** @type {?} */\n    NgZonePrivate.prototype.nativeRequestAnimationFrame;\n}\n/**\n * @param {?} zone\n * @return {?}\n */\nfunction checkStable(zone) {\n    if (zone._nesting == 0 && !zone.hasPendingMicrotasks && !zone.isStable) {\n        try {\n            zone._nesting++;\n            zone.onMicrotaskEmpty.emit(null);\n        }\n        finally {\n            zone._nesting--;\n            if (!zone.hasPendingMicrotasks) {\n                try {\n                    zone.runOutsideAngular((/**\n                     * @return {?}\n                     */\n                    () => zone.onStable.emit(null)));\n                }\n                finally {\n                    zone.isStable = true;\n                }\n            }\n        }\n    }\n}\n/**\n * @param {?} zone\n * @return {?}\n */\nfunction delayChangeDetectionForEvents(zone) {\n    if (zone.lastRequestAnimationFrameId !== -1) {\n        return;\n    }\n    zone.lastRequestAnimationFrameId = zone.nativeRequestAnimationFrame.call(_global, (/**\n     * @return {?}\n     */\n    () => {\n        zone.lastRequestAnimationFrameId = -1;\n        updateMicroTaskStatus(zone);\n        checkStable(zone);\n    }));\n    updateMicroTaskStatus(zone);\n}\n/**\n * @param {?} zone\n * @return {?}\n */\nfunction forkInnerZoneWithAngularBehavior(zone) {\n    /** @type {?} */\n    const delayChangeDetectionForEventsDelegate = (/**\n     * @return {?}\n     */\n    () => {\n        delayChangeDetectionForEvents(zone);\n    });\n    /** @type {?} */\n    const maybeDelayChangeDetection = !!zone.shouldCoalesceEventChangeDetection &&\n        zone.nativeRequestAnimationFrame && delayChangeDetectionForEventsDelegate;\n    zone._inner = zone._inner.fork({\n        name: 'angular',\n        properties: (/** @type {?} */ ({ 'isAngularZone': true, 'maybeDelayChangeDetection': maybeDelayChangeDetection })),\n        onInvokeTask: (/**\n         * @param {?} delegate\n         * @param {?} current\n         * @param {?} target\n         * @param {?} task\n         * @param {?} applyThis\n         * @param {?} applyArgs\n         * @return {?}\n         */\n        (delegate, current, target, task, applyThis, applyArgs) => {\n            try {\n                onEnter(zone);\n                return delegate.invokeTask(target, task, applyThis, applyArgs);\n            }\n            finally {\n                if (maybeDelayChangeDetection && task.type === 'eventTask') {\n                    maybeDelayChangeDetection();\n                }\n                onLeave(zone);\n            }\n        }),\n        onInvoke: (/**\n         * @param {?} delegate\n         * @param {?} current\n         * @param {?} target\n         * @param {?} callback\n         * @param {?} applyThis\n         * @param {?=} applyArgs\n         * @param {?=} source\n         * @return {?}\n         */\n        (delegate, current, target, callback, applyThis, applyArgs, source) => {\n            try {\n                onEnter(zone);\n                return delegate.invoke(target, callback, applyThis, applyArgs, source);\n            }\n            finally {\n                onLeave(zone);\n            }\n        }),\n        onHasTask: (/**\n         * @param {?} delegate\n         * @param {?} current\n         * @param {?} target\n         * @param {?} hasTaskState\n         * @return {?}\n         */\n        (delegate, current, target, hasTaskState) => {\n            delegate.hasTask(target, hasTaskState);\n            if (current === target) {\n                // We are only interested in hasTask events which originate from our zone\n                // (A child hasTask event is not interesting to us)\n                if (hasTaskState.change == 'microTask') {\n                    zone._hasPendingMicrotasks = hasTaskState.microTask;\n                    updateMicroTaskStatus(zone);\n                    checkStable(zone);\n                }\n                else if (hasTaskState.change == 'macroTask') {\n                    zone.hasPendingMacrotasks = hasTaskState.macroTask;\n                }\n            }\n        }),\n        onHandleError: (/**\n         * @param {?} delegate\n         * @param {?} current\n         * @param {?} target\n         * @param {?} error\n         * @return {?}\n         */\n        (delegate, current, target, error) => {\n            delegate.handleError(target, error);\n            zone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => zone.onError.emit(error)));\n            return false;\n        })\n    });\n}\n/**\n * @param {?} zone\n * @return {?}\n */\nfunction updateMicroTaskStatus(zone) {\n    if (zone._hasPendingMicrotasks ||\n        (zone.shouldCoalesceEventChangeDetection && zone.lastRequestAnimationFrameId !== -1)) {\n        zone.hasPendingMicrotasks = true;\n    }\n    else {\n        zone.hasPendingMicrotasks = false;\n    }\n}\n/**\n * @param {?} zone\n * @return {?}\n */\nfunction onEnter(zone) {\n    zone._nesting++;\n    if (zone.isStable) {\n        zone.isStable = false;\n        zone.onUnstable.emit(null);\n    }\n}\n/**\n * @param {?} zone\n * @return {?}\n */\nfunction onLeave(zone) {\n    zone._nesting--;\n    checkStable(zone);\n}\n/**\n * Provides a noop implementation of `NgZone` which does nothing. This zone requires explicit calls\n * to framework to perform rendering.\n */\nclass NoopNgZone {\n    constructor() {\n        this.hasPendingMicrotasks = false;\n        this.hasPendingMacrotasks = false;\n        this.isStable = true;\n        this.onUnstable = new EventEmitter();\n        this.onMicrotaskEmpty = new EventEmitter();\n        this.onStable = new EventEmitter();\n        this.onError = new EventEmitter();\n    }\n    /**\n     * @param {?} fn\n     * @param {?=} applyThis\n     * @param {?=} applyArgs\n     * @return {?}\n     */\n    run(fn, applyThis, applyArgs) {\n        return fn.apply(applyThis, applyArgs);\n    }\n    /**\n     * @param {?} fn\n     * @param {?=} applyThis\n     * @param {?=} applyArgs\n     * @return {?}\n     */\n    runGuarded(fn, applyThis, applyArgs) {\n        return fn.apply(applyThis, applyArgs);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    runOutsideAngular(fn) {\n        return fn();\n    }\n    /**\n     * @param {?} fn\n     * @param {?=} applyThis\n     * @param {?=} applyArgs\n     * @param {?=} name\n     * @return {?}\n     */\n    runTask(fn, applyThis, applyArgs, name) {\n        return fn.apply(applyThis, applyArgs);\n    }\n}\nif (false) {\n    /** @type {?} */\n    NoopNgZone.prototype.hasPendingMicrotasks;\n    /** @type {?} */\n    NoopNgZone.prototype.hasPendingMacrotasks;\n    /** @type {?} */\n    NoopNgZone.prototype.isStable;\n    /** @type {?} */\n    NoopNgZone.prototype.onUnstable;\n    /** @type {?} */\n    NoopNgZone.prototype.onMicrotaskEmpty;\n    /** @type {?} */\n    NoopNgZone.prototype.onStable;\n    /** @type {?} */\n    NoopNgZone.prototype.onError;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/testability/testability.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction PendingMacrotask() { }\nif (false) {\n    /** @type {?} */\n    PendingMacrotask.prototype.source;\n    /** @type {?} */\n    PendingMacrotask.prototype.creationLocation;\n    /** @type {?|undefined} */\n    PendingMacrotask.prototype.runCount;\n    /** @type {?|undefined} */\n    PendingMacrotask.prototype.data;\n}\n/**\n * @record\n */\nfunction TaskData() { }\nif (false) {\n    /** @type {?|undefined} */\n    TaskData.prototype.target;\n    /** @type {?|undefined} */\n    TaskData.prototype.delay;\n    /** @type {?|undefined} */\n    TaskData.prototype.isPeriodic;\n}\n/**\n * @record\n */\nfunction WaitCallback() { }\nif (false) {\n    /** @type {?} */\n    WaitCallback.prototype.timeoutId;\n    /** @type {?} */\n    WaitCallback.prototype.doneCb;\n    /** @type {?|undefined} */\n    WaitCallback.prototype.updateCb;\n}\n/**\n * The Testability service provides testing hooks that can be accessed from\n * the browser and by services such as Protractor. Each bootstrapped Angular\n * application on the page will have an instance of Testability.\n * \\@publicApi\n */\nclass Testability {\n    /**\n     * @param {?} _ngZone\n     */\n    constructor(_ngZone) {\n        this._ngZone = _ngZone;\n        this._pendingCount = 0;\n        this._isZoneStable = true;\n        /**\n         * Whether any work was done since the last 'whenStable' callback. This is\n         * useful to detect if this could have potentially destabilized another\n         * component while it is stabilizing.\n         * \\@internal\n         */\n        this._didWork = false;\n        this._callbacks = [];\n        this.taskTrackingZone = null;\n        this._watchAngularEvents();\n        _ngZone.run((/**\n         * @return {?}\n         */\n        () => {\n            this.taskTrackingZone =\n                typeof Zone == 'undefined' ? null : Zone.current.get('TaskTrackingZone');\n        }));\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _watchAngularEvents() {\n        this._ngZone.onUnstable.subscribe({\n            next: (/**\n             * @return {?}\n             */\n            () => {\n                this._didWork = true;\n                this._isZoneStable = false;\n            })\n        });\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            this._ngZone.onStable.subscribe({\n                next: (/**\n                 * @return {?}\n                 */\n                () => {\n                    NgZone.assertNotInAngularZone();\n                    scheduleMicroTask((/**\n                     * @return {?}\n                     */\n                    () => {\n                        this._isZoneStable = true;\n                        this._runCallbacksIfReady();\n                    }));\n                })\n            });\n        }));\n    }\n    /**\n     * Increases the number of pending request\n     * @deprecated pending requests are now tracked with zones.\n     * @return {?}\n     */\n    increasePendingRequestCount() {\n        this._pendingCount += 1;\n        this._didWork = true;\n        return this._pendingCount;\n    }\n    /**\n     * Decreases the number of pending request\n     * @deprecated pending requests are now tracked with zones\n     * @return {?}\n     */\n    decreasePendingRequestCount() {\n        this._pendingCount -= 1;\n        if (this._pendingCount < 0) {\n            throw new Error('pending async requests below zero');\n        }\n        this._runCallbacksIfReady();\n        return this._pendingCount;\n    }\n    /**\n     * Whether an associated application is stable\n     * @return {?}\n     */\n    isStable() {\n        return this._isZoneStable && this._pendingCount === 0 && !this._ngZone.hasPendingMacrotasks;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _runCallbacksIfReady() {\n        if (this.isStable()) {\n            // Schedules the call backs in a new frame so that it is always async.\n            scheduleMicroTask((/**\n             * @return {?}\n             */\n            () => {\n                while (this._callbacks.length !== 0) {\n                    /** @type {?} */\n                    let cb = (/** @type {?} */ (this._callbacks.pop()));\n                    clearTimeout(cb.timeoutId);\n                    cb.doneCb(this._didWork);\n                }\n                this._didWork = false;\n            }));\n        }\n        else {\n            // Still not stable, send updates.\n            /** @type {?} */\n            let pending = this.getPendingTasks();\n            this._callbacks = this._callbacks.filter((/**\n             * @param {?} cb\n             * @return {?}\n             */\n            (cb) => {\n                if (cb.updateCb && cb.updateCb(pending)) {\n                    clearTimeout(cb.timeoutId);\n                    return false;\n                }\n                return true;\n            }));\n            this._didWork = true;\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    getPendingTasks() {\n        if (!this.taskTrackingZone) {\n            return [];\n        }\n        // Copy the tasks data so that we don't leak tasks.\n        return this.taskTrackingZone.macroTasks.map((/**\n         * @param {?} t\n         * @return {?}\n         */\n        (t) => {\n            return {\n                source: t.source,\n                // From TaskTrackingZone:\n                // https://github.com/angular/zone.js/blob/master/lib/zone-spec/task-tracking.ts#L40\n                creationLocation: (/** @type {?} */ (((/** @type {?} */ (t))).creationLocation)),\n                data: t.data\n            };\n        }));\n    }\n    /**\n     * @private\n     * @param {?} cb\n     * @param {?=} timeout\n     * @param {?=} updateCb\n     * @return {?}\n     */\n    addCallback(cb, timeout, updateCb) {\n        /** @type {?} */\n        let timeoutId = -1;\n        if (timeout && timeout > 0) {\n            timeoutId = setTimeout((/**\n             * @return {?}\n             */\n            () => {\n                this._callbacks = this._callbacks.filter((/**\n                 * @param {?} cb\n                 * @return {?}\n                 */\n                (cb) => cb.timeoutId !== timeoutId));\n                cb(this._didWork, this.getPendingTasks());\n            }), timeout);\n        }\n        this._callbacks.push((/** @type {?} */ ({ doneCb: cb, timeoutId: timeoutId, updateCb: updateCb })));\n    }\n    /**\n     * Wait for the application to be stable with a timeout. If the timeout is reached before that\n     * happens, the callback receives a list of the macro tasks that were pending, otherwise null.\n     *\n     * @param {?} doneCb The callback to invoke when Angular is stable or the timeout expires\n     *    whichever comes first.\n     * @param {?=} timeout Optional. The maximum time to wait for Angular to become stable. If not\n     *    specified, whenStable() will wait forever.\n     * @param {?=} updateCb Optional. If specified, this callback will be invoked whenever the set of\n     *    pending macrotasks changes. If this callback returns true doneCb will not be invoked\n     *    and no further updates will be issued.\n     * @return {?}\n     */\n    whenStable(doneCb, timeout, updateCb) {\n        if (updateCb && !this.taskTrackingZone) {\n            throw new Error('Task tracking zone is required when passing an update callback to ' +\n                'whenStable(). Is \"zone.js/dist/task-tracking.js\" loaded?');\n        }\n        // These arguments are 'Function' above to keep the public API simple.\n        this.addCallback((/** @type {?} */ (doneCb)), timeout, (/** @type {?} */ (updateCb)));\n        this._runCallbacksIfReady();\n    }\n    /**\n     * Get the number of pending requests\n     * @deprecated pending requests are now tracked with zones\n     * @return {?}\n     */\n    getPendingRequestCount() {\n        return this._pendingCount;\n    }\n    /**\n     * Find providers by name\n     * @param {?} using The root element to search from\n     * @param {?} provider The name of binding variable\n     * @param {?} exactMatch Whether using exactMatch\n     * @return {?}\n     */\n    findProviders(using, provider, exactMatch) {\n        // TODO(juliemr): implement.\n        return [];\n    }\n}\nTestability.ɵfac = function Testability_Factory(t) { return new (t || Testability)(ɵɵinject(NgZone)); };\nTestability.ɵprov = ɵɵdefineInjectable({ token: Testability, factory: Testability.ɵfac });\n/** @nocollapse */\nTestability.ctorParameters = () => [\n    { type: NgZone }\n];\n/*@__PURE__*/ (function () { setClassMetadata(Testability, [{\n        type: Injectable\n    }], function () { return [{ type: NgZone }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    Testability.prototype._pendingCount;\n    /**\n     * @type {?}\n     * @private\n     */\n    Testability.prototype._isZoneStable;\n    /**\n     * Whether any work was done since the last 'whenStable' callback. This is\n     * useful to detect if this could have potentially destabilized another\n     * component while it is stabilizing.\n     * \\@internal\n     * @type {?}\n     * @private\n     */\n    Testability.prototype._didWork;\n    /**\n     * @type {?}\n     * @private\n     */\n    Testability.prototype._callbacks;\n    /**\n     * @type {?}\n     * @private\n     */\n    Testability.prototype.taskTrackingZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    Testability.prototype._ngZone;\n}\n/**\n * A global registry of {\\@link Testability} instances for specific elements.\n * \\@publicApi\n */\nclass TestabilityRegistry {\n    constructor() {\n        /**\n         * \\@internal\n         */\n        this._applications = new Map();\n        _testabilityGetter.addToWindow(this);\n    }\n    /**\n     * Registers an application with a testability hook so that it can be tracked\n     * @param {?} token token of application, root element\n     * @param {?} testability Testability hook\n     * @return {?}\n     */\n    registerApplication(token, testability) {\n        this._applications.set(token, testability);\n    }\n    /**\n     * Unregisters an application.\n     * @param {?} token token of application, root element\n     * @return {?}\n     */\n    unregisterApplication(token) {\n        this._applications.delete(token);\n    }\n    /**\n     * Unregisters all applications\n     * @return {?}\n     */\n    unregisterAllApplications() {\n        this._applications.clear();\n    }\n    /**\n     * Get a testability hook associated with the application\n     * @param {?} elem root element\n     * @return {?}\n     */\n    getTestability(elem) {\n        return this._applications.get(elem) || null;\n    }\n    /**\n     * Get all registered testabilities\n     * @return {?}\n     */\n    getAllTestabilities() {\n        return Array.from(this._applications.values());\n    }\n    /**\n     * Get all registered applications(root elements)\n     * @return {?}\n     */\n    getAllRootElements() {\n        return Array.from(this._applications.keys());\n    }\n    /**\n     * Find testability of a node in the Tree\n     * @param {?} elem node\n     * @param {?=} findInAncestors whether finding testability in ancestors if testability was not found in\n     * current node\n     * @return {?}\n     */\n    findTestabilityInTree(elem, findInAncestors = true) {\n        return _testabilityGetter.findTestabilityInTree(this, elem, findInAncestors);\n    }\n}\nTestabilityRegistry.ɵfac = function TestabilityRegistry_Factory(t) { return new (t || TestabilityRegistry)(); };\nTestabilityRegistry.ɵprov = ɵɵdefineInjectable({ token: TestabilityRegistry, factory: TestabilityRegistry.ɵfac });\n/** @nocollapse */\nTestabilityRegistry.ctorParameters = () => [];\n/*@__PURE__*/ (function () { setClassMetadata(TestabilityRegistry, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    TestabilityRegistry.prototype._applications;\n}\n/**\n * Adapter interface for retrieving the `Testability` service associated for a\n * particular context.\n *\n * \\@publicApi\n * @record\n */\nfunction GetTestability() { }\nif (false) {\n    /**\n     * @param {?} registry\n     * @return {?}\n     */\n    GetTestability.prototype.addToWindow = function (registry) { };\n    /**\n     * @param {?} registry\n     * @param {?} elem\n     * @param {?} findInAncestors\n     * @return {?}\n     */\n    GetTestability.prototype.findTestabilityInTree = function (registry, elem, findInAncestors) { };\n}\nclass _NoopGetTestability {\n    /**\n     * @param {?} registry\n     * @return {?}\n     */\n    addToWindow(registry) { }\n    /**\n     * @param {?} registry\n     * @param {?} elem\n     * @param {?} findInAncestors\n     * @return {?}\n     */\n    findTestabilityInTree(registry, elem, findInAncestors) {\n        return null;\n    }\n}\n/**\n * Set the {\\@link GetTestability} implementation used by the Angular testing framework.\n * \\@publicApi\n * @param {?} getter\n * @return {?}\n */\nfunction setTestabilityGetter(getter) {\n    _testabilityGetter = getter;\n}\n/** @type {?} */\nlet _testabilityGetter = new _NoopGetTestability();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/application_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nlet _platform;\n/** @type {?} */\nlet compileNgModuleFactory = compileNgModuleFactory__POST_R3__;\n/**\n * @template M\n * @param {?} injector\n * @param {?} options\n * @param {?} moduleType\n * @return {?}\n */\nfunction compileNgModuleFactory__PRE_R3__(injector, options, moduleType) {\n    /** @type {?} */\n    const compilerFactory = injector.get(CompilerFactory);\n    /** @type {?} */\n    const compiler = compilerFactory.createCompiler([options]);\n    return compiler.compileModuleAsync(moduleType);\n}\n/**\n * @template M\n * @param {?} injector\n * @param {?} options\n * @param {?} moduleType\n * @return {?}\n */\nfunction compileNgModuleFactory__POST_R3__(injector, options, moduleType) {\n    ngDevMode && assertNgModuleType(moduleType);\n    /** @type {?} */\n    const compilerOptions = injector.get(COMPILER_OPTIONS, []).concat(options);\n    if (typeof ngJitMode === 'undefined' || ngJitMode) {\n        // Configure the compiler to use the provided options. This call may fail when multiple modules\n        // are bootstrapped with incompatible options, as a component can only be compiled according to\n        // a single set of options.\n        setJitOptions({\n            defaultEncapsulation: _lastDefined(compilerOptions.map((/**\n             * @param {?} options\n             * @return {?}\n             */\n            options => options.defaultEncapsulation))),\n            preserveWhitespaces: _lastDefined(compilerOptions.map((/**\n             * @param {?} options\n             * @return {?}\n             */\n            options => options.preserveWhitespaces))),\n        });\n    }\n    /** @type {?} */\n    const moduleFactory = new NgModuleFactory$1(moduleType);\n    if (isComponentResourceResolutionQueueEmpty()) {\n        return Promise.resolve(moduleFactory);\n    }\n    /** @type {?} */\n    const compilerProviders = _mergeArrays(compilerOptions.map((/**\n     * @param {?} o\n     * @return {?}\n     */\n    o => (/** @type {?} */ (o.providers)))));\n    // In case there are no compiler providers, we just return the module factory as\n    // there won't be any resource loader. This can happen with Ivy, because AOT compiled\n    // modules can be still passed through \"bootstrapModule\". In that case we shouldn't\n    // unnecessarily require the JIT compiler.\n    if (compilerProviders.length === 0) {\n        return Promise.resolve(moduleFactory);\n    }\n    /** @type {?} */\n    const compiler = getCompilerFacade();\n    /** @type {?} */\n    const compilerInjector = Injector.create({ providers: compilerProviders });\n    /** @type {?} */\n    const resourceLoader = compilerInjector.get(compiler.ResourceLoader);\n    // The resource loader can also return a string while the \"resolveComponentResources\"\n    // always expects a promise. Therefore we need to wrap the returned value in a promise.\n    return resolveComponentResources((/**\n     * @param {?} url\n     * @return {?}\n     */\n    url => Promise.resolve(resourceLoader.get(url))))\n        .then((/**\n     * @return {?}\n     */\n    () => moduleFactory));\n}\n// the `window.ng` global utilities are only available in non-VE versions of\n// Angular. The function switch below will make sure that the code is not\n// included into Angular when PRE mode is active.\n/**\n * @return {?}\n */\nfunction publishDefaultGlobalUtils__PRE_R3__() { }\n/**\n * @return {?}\n */\nfunction publishDefaultGlobalUtils__POST_R3__() {\n    ngDevMode && publishDefaultGlobalUtils();\n}\n/** @type {?} */\nlet publishDefaultGlobalUtils$1 = publishDefaultGlobalUtils__POST_R3__;\n/** @type {?} */\nlet isBoundToModule = isBoundToModule__POST_R3__;\n/**\n * @template C\n * @param {?} cf\n * @return {?}\n */\nfunction isBoundToModule__PRE_R3__(cf) {\n    return cf instanceof ComponentFactoryBoundToModule;\n}\n/**\n * @template C\n * @param {?} cf\n * @return {?}\n */\nfunction isBoundToModule__POST_R3__(cf) {\n    return ((/** @type {?} */ (cf))).isBoundToModule;\n}\n/** @type {?} */\nconst ALLOW_MULTIPLE_PLATFORMS = new InjectionToken('AllowMultipleToken');\n/**\n * A token for third-party components that can register themselves with NgProbe.\n *\n * \\@publicApi\n */\nclass NgProbeToken {\n    /**\n     * @param {?} name\n     * @param {?} token\n     */\n    constructor(name, token) {\n        this.name = name;\n        this.token = token;\n    }\n}\nif (false) {\n    /** @type {?} */\n    NgProbeToken.prototype.name;\n    /** @type {?} */\n    NgProbeToken.prototype.token;\n}\n/**\n * Creates a platform.\n * Platforms have to be eagerly created via this function.\n *\n * \\@publicApi\n * @param {?} injector\n * @return {?}\n */\nfunction createPlatform(injector) {\n    if (_platform && !_platform.destroyed &&\n        !_platform.injector.get(ALLOW_MULTIPLE_PLATFORMS, false)) {\n        throw new Error('There can be only one platform. Destroy the previous one to create a new one.');\n    }\n    publishDefaultGlobalUtils$1();\n    _platform = injector.get(PlatformRef);\n    /** @type {?} */\n    const inits = injector.get(PLATFORM_INITIALIZER, null);\n    if (inits)\n        inits.forEach((/**\n         * @param {?} init\n         * @return {?}\n         */\n        (init) => init()));\n    return _platform;\n}\n/**\n * Creates a factory for a platform\n *\n * \\@publicApi\n * @param {?} parentPlatformFactory\n * @param {?} name\n * @param {?=} providers\n * @return {?}\n */\nfunction createPlatformFactory(parentPlatformFactory, name, providers = []) {\n    /** @type {?} */\n    const desc = `Platform: ${name}`;\n    /** @type {?} */\n    const marker = new InjectionToken(desc);\n    return (/**\n     * @param {?=} extraProviders\n     * @return {?}\n     */\n    (extraProviders = []) => {\n        /** @type {?} */\n        let platform = getPlatform();\n        if (!platform || platform.injector.get(ALLOW_MULTIPLE_PLATFORMS, false)) {\n            if (parentPlatformFactory) {\n                parentPlatformFactory(providers.concat(extraProviders).concat({ provide: marker, useValue: true }));\n            }\n            else {\n                /** @type {?} */\n                const injectedProviders = providers.concat(extraProviders).concat({ provide: marker, useValue: true }, {\n                    provide: INJECTOR_SCOPE,\n                    useValue: 'platform'\n                });\n                createPlatform(Injector.create({ providers: injectedProviders, name: desc }));\n            }\n        }\n        return assertPlatform(marker);\n    });\n}\n/**\n * Checks that there currently is a platform which contains the given token as a provider.\n *\n * \\@publicApi\n * @param {?} requiredToken\n * @return {?}\n */\nfunction assertPlatform(requiredToken) {\n    /** @type {?} */\n    const platform = getPlatform();\n    if (!platform) {\n        throw new Error('No platform exists!');\n    }\n    if (!platform.injector.get(requiredToken, null)) {\n        throw new Error('A platform with a different configuration has been created. Please destroy it first.');\n    }\n    return platform;\n}\n/**\n * Destroy the existing platform.\n *\n * \\@publicApi\n * @return {?}\n */\nfunction destroyPlatform() {\n    if (_platform && !_platform.destroyed) {\n        _platform.destroy();\n    }\n}\n/**\n * Returns the current platform.\n *\n * \\@publicApi\n * @return {?}\n */\nfunction getPlatform() {\n    return _platform && !_platform.destroyed ? _platform : null;\n}\n/**\n * Provides additional options to the bootstraping process.\n *\n *\n * @record\n */\nfunction BootstrapOptions() { }\nif (false) {\n    /**\n     * Optionally specify which `NgZone` should be used.\n     *\n     * - Provide your own `NgZone` instance.\n     * - `zone.js` - Use default `NgZone` which requires `Zone.js`.\n     * - `noop` - Use `NoopNgZone` which does nothing.\n     * @type {?|undefined}\n     */\n    BootstrapOptions.prototype.ngZone;\n    /**\n     * Optionally specify coalescing event change detections or not.\n     * Consider the following case.\n     *\n     * <div (click)=\"doSomething()\">\n     *   <button (click)=\"doSomethingElse()\"></button>\n     * </div>\n     *\n     * When button is clicked, because of the event bubbling, both\n     * event handlers will be called and 2 change detections will be\n     * triggered. We can colesce such kind of events to only trigger\n     * change detection only once.\n     *\n     * By default, this option will be false. So the events will not be\n     * coalesced and the change detection will be triggered multiple times.\n     * And if this option be set to true, the change detection will be\n     * triggered async by scheduling a animation frame. So in the case above,\n     * the change detection will only be trigged once.\n     * @type {?|undefined}\n     */\n    BootstrapOptions.prototype.ngZoneEventCoalescing;\n}\n/**\n * The Angular platform is the entry point for Angular on a web page. Each page\n * has exactly one platform, and services (such as reflection) which are common\n * to every Angular application running on the page are bound in its scope.\n *\n * A page's platform is initialized implicitly when a platform is created via a platform factory\n * (e.g. {\\@link platformBrowser}), or explicitly by calling the {\\@link createPlatform} function.\n *\n * \\@publicApi\n */\nclass PlatformRef {\n    /**\n     * \\@internal\n     * @param {?} _injector\n     */\n    constructor(_injector) {\n        this._injector = _injector;\n        this._modules = [];\n        this._destroyListeners = [];\n        this._destroyed = false;\n    }\n    /**\n     * Creates an instance of an `\\@NgModule` for the given platform\n     * for offline compilation.\n     *\n     * \\@usageNotes\n     * ### Simple Example\n     *\n     * ```typescript\n     * my_module.ts:\n     *\n     * \\@NgModule({\n     *   imports: [BrowserModule]\n     * })\n     * class MyModule {}\n     *\n     * main.ts:\n     * import {MyModuleNgFactory} from './my_module.ngfactory';\n     * import {platformBrowser} from '\\@angular/platform-browser';\n     *\n     * let moduleRef = platformBrowser().bootstrapModuleFactory(MyModuleNgFactory);\n     * ```\n     * @template M\n     * @param {?} moduleFactory\n     * @param {?=} options\n     * @return {?}\n     */\n    bootstrapModuleFactory(moduleFactory, options) {\n        // Note: We need to create the NgZone _before_ we instantiate the module,\n        // as instantiating the module creates some providers eagerly.\n        // So we create a mini parent injector that just contains the new NgZone and\n        // pass that as parent to the NgModuleFactory.\n        /** @type {?} */\n        const ngZoneOption = options ? options.ngZone : undefined;\n        /** @type {?} */\n        const ngZoneEventCoalescing = (options && options.ngZoneEventCoalescing) || false;\n        /** @type {?} */\n        const ngZone = getNgZone(ngZoneOption, ngZoneEventCoalescing);\n        /** @type {?} */\n        const providers = [{ provide: NgZone, useValue: ngZone }];\n        // Attention: Don't use ApplicationRef.run here,\n        // as we want to be sure that all possible constructor calls are inside `ngZone.run`!\n        return ngZone.run((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const ngZoneInjector = Injector.create({ providers: providers, parent: this.injector, name: moduleFactory.moduleType.name });\n            /** @type {?} */\n            const moduleRef = (/** @type {?} */ (moduleFactory.create(ngZoneInjector)));\n            /** @type {?} */\n            const exceptionHandler = moduleRef.injector.get(ErrorHandler, null);\n            if (!exceptionHandler) {\n                throw new Error('No ErrorHandler. Is platform module (BrowserModule) included?');\n            }\n            moduleRef.onDestroy((/**\n             * @return {?}\n             */\n            () => remove(this._modules, moduleRef)));\n            (/** @type {?} */ (ngZone)).runOutsideAngular((/**\n             * @return {?}\n             */\n            () => (/** @type {?} */ (ngZone)).onError.subscribe({\n                next: (/**\n                 * @param {?} error\n                 * @return {?}\n                 */\n                (error) => {\n                    exceptionHandler.handleError(error);\n                })\n            })));\n            return _callAndReportToErrorHandler(exceptionHandler, (/** @type {?} */ (ngZone)), (/**\n             * @return {?}\n             */\n            () => {\n                /** @type {?} */\n                const initStatus = moduleRef.injector.get(ApplicationInitStatus);\n                initStatus.runInitializers();\n                return initStatus.donePromise.then((/**\n                 * @return {?}\n                 */\n                () => {\n                    if (ivyEnabled) {\n                        // If the `LOCALE_ID` provider is defined at bootstrap then we set the value for ivy\n                        /** @type {?} */\n                        const localeId = moduleRef.injector.get(LOCALE_ID$1, DEFAULT_LOCALE_ID);\n                        setLocaleId(localeId || DEFAULT_LOCALE_ID);\n                    }\n                    this._moduleDoBootstrap(moduleRef);\n                    return moduleRef;\n                }));\n            }));\n        }));\n    }\n    /**\n     * Creates an instance of an `\\@NgModule` for a given platform using the given runtime compiler.\n     *\n     * \\@usageNotes\n     * ### Simple Example\n     *\n     * ```typescript\n     * \\@NgModule({\n     *   imports: [BrowserModule]\n     * })\n     * class MyModule {}\n     *\n     * let moduleRef = platformBrowser().bootstrapModule(MyModule);\n     * ```\n     *\n     * @template M\n     * @param {?} moduleType\n     * @param {?=} compilerOptions\n     * @return {?}\n     */\n    bootstrapModule(moduleType, compilerOptions = []) {\n        /** @type {?} */\n        const options = optionsReducer({}, compilerOptions);\n        return compileNgModuleFactory(this.injector, options, moduleType)\n            .then((/**\n         * @param {?} moduleFactory\n         * @return {?}\n         */\n        moduleFactory => this.bootstrapModuleFactory(moduleFactory, options)));\n    }\n    /**\n     * @private\n     * @param {?} moduleRef\n     * @return {?}\n     */\n    _moduleDoBootstrap(moduleRef) {\n        /** @type {?} */\n        const appRef = (/** @type {?} */ (moduleRef.injector.get(ApplicationRef)));\n        if (moduleRef._bootstrapComponents.length > 0) {\n            moduleRef._bootstrapComponents.forEach((/**\n             * @param {?} f\n             * @return {?}\n             */\n            f => appRef.bootstrap(f)));\n        }\n        else if (moduleRef.instance.ngDoBootstrap) {\n            moduleRef.instance.ngDoBootstrap(appRef);\n        }\n        else {\n            throw new Error(`The module ${stringify(moduleRef.instance\n                .constructor)} was bootstrapped, but it does not declare \"@NgModule.bootstrap\" components nor a \"ngDoBootstrap\" method. ` +\n                `Please define one of these.`);\n        }\n        this._modules.push(moduleRef);\n    }\n    /**\n     * Register a listener to be called when the platform is disposed.\n     * @param {?} callback\n     * @return {?}\n     */\n    onDestroy(callback) {\n        this._destroyListeners.push(callback);\n    }\n    /**\n     * Retrieve the platform {\\@link Injector}, which is the parent injector for\n     * every Angular application on the page and provides singleton providers.\n     * @return {?}\n     */\n    get injector() {\n        return this._injector;\n    }\n    /**\n     * Destroy the Angular platform and all Angular applications on the page.\n     * @return {?}\n     */\n    destroy() {\n        if (this._destroyed) {\n            throw new Error('The platform has already been destroyed!');\n        }\n        this._modules.slice().forEach((/**\n         * @param {?} module\n         * @return {?}\n         */\n        module => module.destroy()));\n        this._destroyListeners.forEach((/**\n         * @param {?} listener\n         * @return {?}\n         */\n        listener => listener()));\n        this._destroyed = true;\n    }\n    /**\n     * @return {?}\n     */\n    get destroyed() {\n        return this._destroyed;\n    }\n}\nPlatformRef.ɵfac = function PlatformRef_Factory(t) { return new (t || PlatformRef)(ɵɵinject(Injector)); };\nPlatformRef.ɵprov = ɵɵdefineInjectable({ token: PlatformRef, factory: PlatformRef.ɵfac });\n/** @nocollapse */\nPlatformRef.ctorParameters = () => [\n    { type: Injector }\n];\n/*@__PURE__*/ (function () { setClassMetadata(PlatformRef, [{\n        type: Injectable\n    }], function () { return [{ type: Injector }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    PlatformRef.prototype._modules;\n    /**\n     * @type {?}\n     * @private\n     */\n    PlatformRef.prototype._destroyListeners;\n    /**\n     * @type {?}\n     * @private\n     */\n    PlatformRef.prototype._destroyed;\n    /**\n     * @type {?}\n     * @private\n     */\n    PlatformRef.prototype._injector;\n}\n/**\n * @param {?} ngZoneOption\n * @param {?} ngZoneEventCoalescing\n * @return {?}\n */\nfunction getNgZone(ngZoneOption, ngZoneEventCoalescing) {\n    /** @type {?} */\n    let ngZone;\n    if (ngZoneOption === 'noop') {\n        ngZone = new NoopNgZone();\n    }\n    else {\n        ngZone = (ngZoneOption === 'zone.js' ? undefined : ngZoneOption) || new NgZone({\n            enableLongStackTrace: isDevMode(),\n            shouldCoalesceEventChangeDetection: ngZoneEventCoalescing\n        });\n    }\n    return ngZone;\n}\n/**\n * @param {?} errorHandler\n * @param {?} ngZone\n * @param {?} callback\n * @return {?}\n */\nfunction _callAndReportToErrorHandler(errorHandler, ngZone, callback) {\n    try {\n        /** @type {?} */\n        const result = callback();\n        if (isPromise(result)) {\n            return result.catch((/**\n             * @param {?} e\n             * @return {?}\n             */\n            (e) => {\n                ngZone.runOutsideAngular((/**\n                 * @return {?}\n                 */\n                () => errorHandler.handleError(e)));\n                // rethrow as the exception handler might not do it\n                throw e;\n            }));\n        }\n        return result;\n    }\n    catch (e) {\n        ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => errorHandler.handleError(e)));\n        // rethrow as the exception handler might not do it\n        throw e;\n    }\n}\n/**\n * @template T\n * @param {?} dst\n * @param {?} objs\n * @return {?}\n */\nfunction optionsReducer(dst, objs) {\n    if (Array.isArray(objs)) {\n        dst = objs.reduce(optionsReducer, dst);\n    }\n    else {\n        dst = Object.assign(Object.assign({}, dst), ((/** @type {?} */ (objs))));\n    }\n    return dst;\n}\n/**\n * A reference to an Angular application running on a page.\n *\n * \\@usageNotes\n *\n * {\\@a is-stable-examples}\n * ### isStable examples and caveats\n *\n * Note two important points about `isStable`, demonstrated in the examples below:\n * - the application will never be stable if you start any kind\n * of recurrent asynchronous task when the application starts\n * (for example for a polling process, started with a `setInterval`, a `setTimeout`\n * or using RxJS operators like `interval`);\n * - the `isStable` Observable runs outside of the Angular zone.\n *\n * Let's imagine that you start a recurrent task\n * (here incrementing a counter, using RxJS `interval`),\n * and at the same time subscribe to `isStable`.\n *\n * ```\n * constructor(appRef: ApplicationRef) {\n *   appRef.isStable.pipe(\n *      filter(stable => stable)\n *   ).subscribe(() => console.log('App is stable now');\n *   interval(1000).subscribe(counter => console.log(counter));\n * }\n * ```\n * In this example, `isStable` will never emit `true`,\n * and the trace \"App is stable now\" will never get logged.\n *\n * If you want to execute something when the app is stable,\n * you have to wait for the application to be stable\n * before starting your polling process.\n *\n * ```\n * constructor(appRef: ApplicationRef) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     tap(stable => console.log('App is stable now')),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => console.log(counter));\n * }\n * ```\n * In this example, the trace \"App is stable now\" will be logged\n * and then the counter starts incrementing every second.\n *\n * Note also that this Observable runs outside of the Angular zone,\n * which means that the code in the subscription\n * to this Observable will not trigger the change detection.\n *\n * Let's imagine that instead of logging the counter value,\n * you update a field of your component\n * and display it in its template.\n *\n * ```\n * constructor(appRef: ApplicationRef) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => this.value = counter);\n * }\n * ```\n * As the `isStable` Observable runs outside the zone,\n * the `value` field will be updated properly,\n * but the template will not be refreshed!\n *\n * You'll have to manually trigger the change detection to update the template.\n *\n * ```\n * constructor(appRef: ApplicationRef, cd: ChangeDetectorRef) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => {\n *     this.value = counter;\n *     cd.detectChanges();\n *   });\n * }\n * ```\n *\n * Or make the subscription callback run inside the zone.\n *\n * ```\n * constructor(appRef: ApplicationRef, zone: NgZone) {\n *   appRef.isStable.pipe(\n *     first(stable => stable),\n *     switchMap(() => interval(1000))\n *   ).subscribe(counter => zone.run(() => this.value = counter));\n * }\n * ```\n *\n * \\@publicApi\n */\nclass ApplicationRef {\n    /**\n     * \\@internal\n     * @param {?} _zone\n     * @param {?} _console\n     * @param {?} _injector\n     * @param {?} _exceptionHandler\n     * @param {?} _componentFactoryResolver\n     * @param {?} _initStatus\n     */\n    constructor(_zone, _console, _injector, _exceptionHandler, _componentFactoryResolver, _initStatus) {\n        this._zone = _zone;\n        this._console = _console;\n        this._injector = _injector;\n        this._exceptionHandler = _exceptionHandler;\n        this._componentFactoryResolver = _componentFactoryResolver;\n        this._initStatus = _initStatus;\n        /**\n         * \\@internal\n         */\n        this._bootstrapListeners = [];\n        this._views = [];\n        this._runningTick = false;\n        this._enforceNoNewChanges = false;\n        this._stable = true;\n        /**\n         * Get a list of component types registered to this application.\n         * This list is populated even before the component is created.\n         */\n        this.componentTypes = [];\n        /**\n         * Get a list of components registered to this application.\n         */\n        this.components = [];\n        this._enforceNoNewChanges = isDevMode();\n        this._zone.onMicrotaskEmpty.subscribe({\n            next: (/**\n             * @return {?}\n             */\n            () => {\n                this._zone.run((/**\n                 * @return {?}\n                 */\n                () => {\n                    this.tick();\n                }));\n            })\n        });\n        /** @type {?} */\n        const isCurrentlyStable = new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            this._stable = this._zone.isStable && !this._zone.hasPendingMacrotasks &&\n                !this._zone.hasPendingMicrotasks;\n            this._zone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                observer.next(this._stable);\n                observer.complete();\n            }));\n        }));\n        /** @type {?} */\n        const isStable = new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            // Create the subscription to onStable outside the Angular Zone so that\n            // the callback is run outside the Angular Zone.\n            /** @type {?} */\n            let stableSub;\n            this._zone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                stableSub = this._zone.onStable.subscribe((/**\n                 * @return {?}\n                 */\n                () => {\n                    NgZone.assertNotInAngularZone();\n                    // Check whether there are no pending macro/micro tasks in the next tick\n                    // to allow for NgZone to update the state.\n                    scheduleMicroTask((/**\n                     * @return {?}\n                     */\n                    () => {\n                        if (!this._stable && !this._zone.hasPendingMacrotasks &&\n                            !this._zone.hasPendingMicrotasks) {\n                            this._stable = true;\n                            observer.next(true);\n                        }\n                    }));\n                }));\n            }));\n            /** @type {?} */\n            const unstableSub = this._zone.onUnstable.subscribe((/**\n             * @return {?}\n             */\n            () => {\n                NgZone.assertInAngularZone();\n                if (this._stable) {\n                    this._stable = false;\n                    this._zone.runOutsideAngular((/**\n                     * @return {?}\n                     */\n                    () => {\n                        observer.next(false);\n                    }));\n                }\n            }));\n            return (/**\n             * @return {?}\n             */\n            () => {\n                stableSub.unsubscribe();\n                unstableSub.unsubscribe();\n            });\n        }));\n        ((/** @type {?} */ (this))).isStable =\n            merge$1(isCurrentlyStable, isStable.pipe(share()));\n    }\n    /**\n     * Bootstrap a new component at the root level of the application.\n     *\n     * \\@usageNotes\n     * ### Bootstrap process\n     *\n     * When bootstrapping a new root component into an application, Angular mounts the\n     * specified application component onto DOM elements identified by the componentType's\n     * selector and kicks off automatic change detection to finish initializing the component.\n     *\n     * Optionally, a component can be mounted onto a DOM element that does not match the\n     * componentType's selector.\n     *\n     * ### Example\n     * {\\@example core/ts/platform/platform.ts region='longform'}\n     * @template C\n     * @param {?} componentOrFactory\n     * @param {?=} rootSelectorOrNode\n     * @return {?}\n     */\n    bootstrap(componentOrFactory, rootSelectorOrNode) {\n        if (!this._initStatus.done) {\n            throw new Error('Cannot bootstrap as there are still asynchronous initializers running. Bootstrap components in the `ngDoBootstrap` method of the root module.');\n        }\n        /** @type {?} */\n        let componentFactory;\n        if (componentOrFactory instanceof ComponentFactory) {\n            componentFactory = componentOrFactory;\n        }\n        else {\n            componentFactory =\n                (/** @type {?} */ (this._componentFactoryResolver.resolveComponentFactory(componentOrFactory)));\n        }\n        this.componentTypes.push(componentFactory.componentType);\n        // Create a factory associated with the current module if it's not bound to some other\n        /** @type {?} */\n        const ngModule = isBoundToModule(componentFactory) ? undefined : this._injector.get(NgModuleRef);\n        /** @type {?} */\n        const selectorOrNode = rootSelectorOrNode || componentFactory.selector;\n        /** @type {?} */\n        const compRef = componentFactory.create(Injector.NULL, [], selectorOrNode, ngModule);\n        compRef.onDestroy((/**\n         * @return {?}\n         */\n        () => {\n            this._unloadComponent(compRef);\n        }));\n        /** @type {?} */\n        const testability = compRef.injector.get(Testability, null);\n        if (testability) {\n            compRef.injector.get(TestabilityRegistry)\n                .registerApplication(compRef.location.nativeElement, testability);\n        }\n        this._loadComponent(compRef);\n        if (isDevMode()) {\n            this._console.log(`Angular is running in the development mode. Call enableProdMode() to enable the production mode.`);\n        }\n        return compRef;\n    }\n    /**\n     * Invoke this method to explicitly process change detection and its side-effects.\n     *\n     * In development mode, `tick()` also performs a second change detection cycle to ensure that no\n     * further changes are detected. If additional changes are picked up during this second cycle,\n     * bindings in the app have side-effects that cannot be resolved in a single change detection\n     * pass.\n     * In this case, Angular throws an error, since an Angular application can only have one change\n     * detection pass during which all change detection must complete.\n     * @return {?}\n     */\n    tick() {\n        if (this._runningTick) {\n            throw new Error('ApplicationRef.tick is called recursively');\n        }\n        try {\n            this._runningTick = true;\n            for (let view of this._views) {\n                view.detectChanges();\n            }\n            if (this._enforceNoNewChanges) {\n                for (let view of this._views) {\n                    view.checkNoChanges();\n                }\n            }\n        }\n        catch (e) {\n            // Attention: Don't rethrow as it could cancel subscriptions to Observables!\n            this._zone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => this._exceptionHandler.handleError(e)));\n        }\n        finally {\n            this._runningTick = false;\n        }\n    }\n    /**\n     * Attaches a view so that it will be dirty checked.\n     * The view will be automatically detached when it is destroyed.\n     * This will throw if the view is already attached to a ViewContainer.\n     * @param {?} viewRef\n     * @return {?}\n     */\n    attachView(viewRef) {\n        /** @type {?} */\n        const view = ((/** @type {?} */ (viewRef)));\n        this._views.push(view);\n        view.attachToAppRef(this);\n    }\n    /**\n     * Detaches a view from dirty checking again.\n     * @param {?} viewRef\n     * @return {?}\n     */\n    detachView(viewRef) {\n        /** @type {?} */\n        const view = ((/** @type {?} */ (viewRef)));\n        remove(this._views, view);\n        view.detachFromAppRef();\n    }\n    /**\n     * @private\n     * @param {?} componentRef\n     * @return {?}\n     */\n    _loadComponent(componentRef) {\n        this.attachView(componentRef.hostView);\n        this.tick();\n        this.components.push(componentRef);\n        // Get the listeners lazily to prevent DI cycles.\n        /** @type {?} */\n        const listeners = this._injector.get(APP_BOOTSTRAP_LISTENER, []).concat(this._bootstrapListeners);\n        listeners.forEach((/**\n         * @param {?} listener\n         * @return {?}\n         */\n        (listener) => listener(componentRef)));\n    }\n    /**\n     * @private\n     * @param {?} componentRef\n     * @return {?}\n     */\n    _unloadComponent(componentRef) {\n        this.detachView(componentRef.hostView);\n        remove(this.components, componentRef);\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    ngOnDestroy() {\n        // TODO(alxhub): Dispose of the NgZone.\n        this._views.slice().forEach((/**\n         * @param {?} view\n         * @return {?}\n         */\n        (view) => view.destroy()));\n    }\n    /**\n     * Returns the number of attached views.\n     * @return {?}\n     */\n    get viewCount() {\n        return this._views.length;\n    }\n}\nApplicationRef.ɵfac = function ApplicationRef_Factory(t) { return new (t || ApplicationRef)(ɵɵinject(NgZone), ɵɵinject(Console), ɵɵinject(Injector), ɵɵinject(ErrorHandler), ɵɵinject(ComponentFactoryResolver), ɵɵinject(ApplicationInitStatus)); };\nApplicationRef.ɵprov = ɵɵdefineInjectable({ token: ApplicationRef, factory: ApplicationRef.ɵfac });\n/** @nocollapse */\nApplicationRef.ctorParameters = () => [\n    { type: NgZone },\n    { type: Console },\n    { type: Injector },\n    { type: ErrorHandler },\n    { type: ComponentFactoryResolver },\n    { type: ApplicationInitStatus }\n];\n/*@__PURE__*/ (function () { setClassMetadata(ApplicationRef, [{\n        type: Injectable\n    }], function () { return [{ type: NgZone }, { type: Console }, { type: Injector }, { type: ErrorHandler }, { type: ComponentFactoryResolver }, { type: ApplicationInitStatus }]; }, null); })();\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._bootstrapListeners;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._views;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._runningTick;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._enforceNoNewChanges;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._stable;\n    /**\n     * Get a list of component types registered to this application.\n     * This list is populated even before the component is created.\n     * @type {?}\n     */\n    ApplicationRef.prototype.componentTypes;\n    /**\n     * Get a list of components registered to this application.\n     * @type {?}\n     */\n    ApplicationRef.prototype.components;\n    /**\n     * Returns an Observable that indicates when the application is stable or unstable.\n     *\n     * @see [Usage notes](#is-stable-examples) for examples and caveats when using this API.\n     * @type {?}\n     */\n    ApplicationRef.prototype.isStable;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._zone;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._console;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._injector;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._exceptionHandler;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._componentFactoryResolver;\n    /**\n     * @type {?}\n     * @private\n     */\n    ApplicationRef.prototype._initStatus;\n}\n/**\n * @template T\n * @param {?} list\n * @param {?} el\n * @return {?}\n */\nfunction remove(list, el) {\n    /** @type {?} */\n    const index = list.indexOf(el);\n    if (index > -1) {\n        list.splice(index, 1);\n    }\n}\n/**\n * @template T\n * @param {?} args\n * @return {?}\n */\nfunction _lastDefined(args) {\n    for (let i = args.length - 1; i >= 0; i--) {\n        if (args[i] !== undefined) {\n            return args[i];\n        }\n    }\n    return undefined;\n}\n/**\n * @param {?} parts\n * @return {?}\n */\nfunction _mergeArrays(parts) {\n    /** @type {?} */\n    const result = [];\n    parts.forEach((/**\n     * @param {?} part\n     * @return {?}\n     */\n    (part) => part && result.push(...part)));\n    return result;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/zone.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/render.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/ng_module_factory_loader.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Used to load ng module factories.\n *\n * \\@publicApi\n * @deprecated the `string` form of `loadChildren` is deprecated, and `NgModuleFactoryLoader` is\n * part of its implementation. See `LoadChildren` for more details.\n * @abstract\n */\nclass NgModuleFactoryLoader {\n}\nif (false) {\n    /**\n     * @abstract\n     * @param {?} path\n     * @return {?}\n     */\n    NgModuleFactoryLoader.prototype.load = function (path) { };\n}\n/**\n * @param {?} id\n * @return {?}\n */\nfunction getModuleFactory__PRE_R3__(id) {\n    /** @type {?} */\n    const factory = (/** @type {?} */ (getRegisteredNgModuleType(id)));\n    if (!factory)\n        throw noModuleError(id);\n    return factory;\n}\n/**\n * @param {?} id\n * @return {?}\n */\nfunction getModuleFactory__POST_R3__(id) {\n    /** @type {?} */\n    const type = (/** @type {?} */ (getRegisteredNgModuleType(id)));\n    if (!type)\n        throw noModuleError(id);\n    return new NgModuleFactory$1(type);\n}\n/**\n * Returns the NgModuleFactory with the given id, if it exists and has been loaded.\n * Factories for modules that do not specify an `id` cannot be retrieved. Throws if the module\n * cannot be found.\n * \\@publicApi\n * @type {?}\n */\nconst getModuleFactory = getModuleFactory__POST_R3__;\n/**\n * @param {?} id\n * @return {?}\n */\nfunction noModuleError(id) {\n    return new Error(`No module with ID ${id} loaded`);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/system_js_ng_module_factory_loader.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst _SEPARATOR = '#';\n/** @type {?} */\nconst FACTORY_CLASS_SUFFIX = 'NgFactory';\n/**\n * Configuration for SystemJsNgModuleLoader.\n * token.\n *\n * \\@publicApi\n * @deprecated the `string` form of `loadChildren` is deprecated, and `SystemJsNgModuleLoaderConfig`\n * is part of its implementation. See `LoadChildren` for more details.\n * @abstract\n */\nclass SystemJsNgModuleLoaderConfig {\n}\nif (false) {\n    /**\n     * Prefix to add when computing the name of the factory module for a given module name.\n     * @type {?}\n     */\n    SystemJsNgModuleLoaderConfig.prototype.factoryPathPrefix;\n    /**\n     * Suffix to add when computing the name of the factory module for a given module name.\n     * @type {?}\n     */\n    SystemJsNgModuleLoaderConfig.prototype.factoryPathSuffix;\n}\n/** @type {?} */\nconst DEFAULT_CONFIG = {\n    factoryPathPrefix: '',\n    factoryPathSuffix: '.ngfactory',\n};\n/**\n * NgModuleFactoryLoader that uses SystemJS to load NgModuleFactory\n * \\@publicApi\n * @deprecated the `string` form of `loadChildren` is deprecated, and `SystemJsNgModuleLoader` is\n * part of its implementation. See `LoadChildren` for more details.\n */\nclass SystemJsNgModuleLoader {\n    /**\n     * @param {?} _compiler\n     * @param {?=} config\n     */\n    constructor(_compiler, config) {\n        this._compiler = _compiler;\n        this._config = config || DEFAULT_CONFIG;\n    }\n    /**\n     * @param {?} path\n     * @return {?}\n     */\n    load(path) {\n        /** @type {?} */\n        const legacyOfflineMode = !ivyEnabled && this._compiler instanceof Compiler;\n        return legacyOfflineMode ? this.loadFactory(path) : this.loadAndCompile(path);\n    }\n    /**\n     * @private\n     * @param {?} path\n     * @return {?}\n     */\n    loadAndCompile(path) {\n        let [module, exportName] = path.split(_SEPARATOR);\n        if (exportName === undefined) {\n            exportName = 'default';\n        }\n        return System.import(module)\n            .then((/**\n         * @param {?} module\n         * @return {?}\n         */\n        (module) => module[exportName]))\n            .then((/**\n         * @param {?} type\n         * @return {?}\n         */\n        (type) => checkNotEmpty(type, module, exportName)))\n            .then((/**\n         * @param {?} type\n         * @return {?}\n         */\n        (type) => this._compiler.compileModuleAsync(type)));\n    }\n    /**\n     * @private\n     * @param {?} path\n     * @return {?}\n     */\n    loadFactory(path) {\n        let [module, exportName] = path.split(_SEPARATOR);\n        /** @type {?} */\n        let factoryClassSuffix = FACTORY_CLASS_SUFFIX;\n        if (exportName === undefined) {\n            exportName = 'default';\n            factoryClassSuffix = '';\n        }\n        return System.import(this._config.factoryPathPrefix + module + this._config.factoryPathSuffix)\n            .then((/**\n         * @param {?} module\n         * @return {?}\n         */\n        (module) => module[exportName + factoryClassSuffix]))\n            .then((/**\n         * @param {?} factory\n         * @return {?}\n         */\n        (factory) => checkNotEmpty(factory, module, exportName)));\n    }\n}\nSystemJsNgModuleLoader.ɵfac = function SystemJsNgModuleLoader_Factory(t) { return new (t || SystemJsNgModuleLoader)(ɵɵinject(Compiler), ɵɵinject(SystemJsNgModuleLoaderConfig, 8)); };\nSystemJsNgModuleLoader.ɵprov = ɵɵdefineInjectable({ token: SystemJsNgModuleLoader, factory: SystemJsNgModuleLoader.ɵfac });\n/** @nocollapse */\nSystemJsNgModuleLoader.ctorParameters = () => [\n    { type: Compiler },\n    { type: SystemJsNgModuleLoaderConfig, decorators: [{ type: Optional }] }\n];\n/*@__PURE__*/ (function () { setClassMetadata(SystemJsNgModuleLoader, [{\n        type: Injectable\n    }], function () { return [{ type: Compiler }, { type: SystemJsNgModuleLoaderConfig, decorators: [{\n                type: Optional\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    SystemJsNgModuleLoader.prototype._config;\n    /**\n     * @type {?}\n     * @private\n     */\n    SystemJsNgModuleLoader.prototype._compiler;\n}\n/**\n * @param {?} value\n * @param {?} modulePath\n * @param {?} exportName\n * @return {?}\n */\nfunction checkNotEmpty(value, modulePath, exportName) {\n    if (!value) {\n        throw new Error(`Cannot find '${exportName}' in '${modulePath}'`);\n    }\n    return value;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker/view_ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Represents an Angular [view](guide/glossary#view),\n * specifically the [host view](guide/glossary#view-tree) that is defined by a component.\n * Also serves as the base class\n * that adds destroy methods for [embedded views](guide/glossary#view-tree).\n *\n * @see `EmbeddedViewRef`\n *\n * \\@publicApi\n * @abstract\n */\nclass ViewRef$1 extends ChangeDetectorRef {\n}\nif (false) {\n    /**\n     * Destroys this view and all of the data structures associated with it.\n     * @abstract\n     * @return {?}\n     */\n    ViewRef$1.prototype.destroy = function () { };\n    /**\n     * Reports whether this view has been destroyed.\n     * @abstract\n     * @return {?} True after the `destroy()` method has been called, false otherwise.\n     */\n    ViewRef$1.prototype.destroyed = function () { };\n    /**\n     * A lifecycle hook that provides additional developer-defined cleanup\n     * functionality for views.\n     * @abstract\n     * @param {?} callback A handler function that cleans up developer-defined data\n     * associated with a view. Called when the `destroy()` method is invoked.\n     * @return {?}\n     */\n    ViewRef$1.prototype.onDestroy = function (callback) { };\n}\n/**\n * Represents an Angular [view](guide/glossary#view) in a view container.\n * An [embedded view](guide/glossary#view-tree) can be referenced from a component\n * other than the hosting component whose template defines it, or it can be defined\n * independently by a `TemplateRef`.\n *\n * Properties of elements in a view can change, but the structure (number and order) of elements in\n * a view cannot. Change the structure of elements by inserting, moving, or\n * removing nested views in a view container.\n *\n * @see `ViewContainerRef`\n *\n * \\@usageNotes\n *\n * The following template breaks down into two separate `TemplateRef` instances,\n * an outer one and an inner one.\n *\n * ```\n * Count: {{items.length}}\n * <ul>\n *   <li *ngFor=\"let  item of items\">{{item}}</li>\n * </ul>\n * ```\n *\n * This is the outer `TemplateRef`:\n *\n * ```\n * Count: {{items.length}}\n * <ul>\n *   <ng-template ngFor let-item [ngForOf]=\"items\"></ng-template>\n * </ul>\n * ```\n *\n * This is the inner `TemplateRef`:\n *\n * ```\n *   <li>{{item}}</li>\n * ```\n *\n * The outer and inner `TemplateRef` instances are assembled into views as follows:\n *\n * ```\n * <!-- ViewRef: outer-0 -->\n * Count: 2\n * <ul>\n *   <ng-template view-container-ref></ng-template>\n *   <!-- ViewRef: inner-1 --><li>first</li><!-- /ViewRef: inner-1 -->\n *   <!-- ViewRef: inner-2 --><li>second</li><!-- /ViewRef: inner-2 -->\n * </ul>\n * <!-- /ViewRef: outer-0 -->\n * ```\n * \\@publicApi\n * @abstract\n * @template C\n */\nclass EmbeddedViewRef extends ViewRef$1 {\n}\nif (false) {\n    /**\n     * The context for this view, inherited from the anchor element.\n     * @abstract\n     * @return {?}\n     */\n    EmbeddedViewRef.prototype.context = function () { };\n    /**\n     * The root nodes for this embedded view.\n     * @abstract\n     * @return {?}\n     */\n    EmbeddedViewRef.prototype.rootNodes = function () { };\n}\n/**\n * @record\n */\nfunction InternalViewRef() { }\nif (false) {\n    /**\n     * @return {?}\n     */\n    InternalViewRef.prototype.detachFromAppRef = function () { };\n    /**\n     * @param {?} appRef\n     * @return {?}\n     */\n    InternalViewRef.prototype.attachToAppRef = function (appRef) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/linker.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/debug/debug_node.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n */\nclass DebugEventListener {\n    /**\n     * @param {?} name\n     * @param {?} callback\n     */\n    constructor(name, callback) {\n        this.name = name;\n        this.callback = callback;\n    }\n}\nif (false) {\n    /** @type {?} */\n    DebugEventListener.prototype.name;\n    /** @type {?} */\n    DebugEventListener.prototype.callback;\n}\n// WARNING: interface has both a type and a value, skipping emit\nclass DebugNode__PRE_R3__ {\n    /**\n     * @param {?} nativeNode\n     * @param {?} parent\n     * @param {?} _debugContext\n     */\n    constructor(nativeNode, parent, _debugContext) {\n        this.listeners = [];\n        this.parent = null;\n        this._debugContext = _debugContext;\n        this.nativeNode = nativeNode;\n        if (parent && parent instanceof DebugElement__PRE_R3__) {\n            parent.addChild(this);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    get injector() {\n        return this._debugContext.injector;\n    }\n    /**\n     * @return {?}\n     */\n    get componentInstance() {\n        return this._debugContext.component;\n    }\n    /**\n     * @return {?}\n     */\n    get context() {\n        return this._debugContext.context;\n    }\n    /**\n     * @return {?}\n     */\n    get references() {\n        return this._debugContext.references;\n    }\n    /**\n     * @return {?}\n     */\n    get providerTokens() {\n        return this._debugContext.providerTokens;\n    }\n}\nif (false) {\n    /** @type {?} */\n    DebugNode__PRE_R3__.prototype.listeners;\n    /** @type {?} */\n    DebugNode__PRE_R3__.prototype.parent;\n    /** @type {?} */\n    DebugNode__PRE_R3__.prototype.nativeNode;\n    /**\n     * @type {?}\n     * @private\n     */\n    DebugNode__PRE_R3__.prototype._debugContext;\n}\n// WARNING: interface has both a type and a value, skipping emit\nclass DebugElement__PRE_R3__ extends DebugNode__PRE_R3__ {\n    /**\n     * @param {?} nativeNode\n     * @param {?} parent\n     * @param {?} _debugContext\n     */\n    constructor(nativeNode, parent, _debugContext) {\n        super(nativeNode, parent, _debugContext);\n        this.properties = {};\n        this.attributes = {};\n        this.classes = {};\n        this.styles = {};\n        this.childNodes = [];\n        this.nativeElement = nativeNode;\n    }\n    /**\n     * @param {?} child\n     * @return {?}\n     */\n    addChild(child) {\n        if (child) {\n            this.childNodes.push(child);\n            ((/** @type {?} */ (child))).parent = this;\n        }\n    }\n    /**\n     * @param {?} child\n     * @return {?}\n     */\n    removeChild(child) {\n        /** @type {?} */\n        const childIndex = this.childNodes.indexOf(child);\n        if (childIndex !== -1) {\n            ((/** @type {?} */ (child))).parent = null;\n            this.childNodes.splice(childIndex, 1);\n        }\n    }\n    /**\n     * @param {?} child\n     * @param {?} newChildren\n     * @return {?}\n     */\n    insertChildrenAfter(child, newChildren) {\n        /** @type {?} */\n        const siblingIndex = this.childNodes.indexOf(child);\n        if (siblingIndex !== -1) {\n            this.childNodes.splice(siblingIndex + 1, 0, ...newChildren);\n            newChildren.forEach((/**\n             * @param {?} c\n             * @return {?}\n             */\n            c => {\n                if (c.parent) {\n                    ((/** @type {?} */ (c.parent))).removeChild(c);\n                }\n                ((/** @type {?} */ (child))).parent = this;\n            }));\n        }\n    }\n    /**\n     * @param {?} refChild\n     * @param {?} newChild\n     * @return {?}\n     */\n    insertBefore(refChild, newChild) {\n        /** @type {?} */\n        const refIndex = this.childNodes.indexOf(refChild);\n        if (refIndex === -1) {\n            this.addChild(newChild);\n        }\n        else {\n            if (newChild.parent) {\n                ((/** @type {?} */ (newChild.parent))).removeChild(newChild);\n            }\n            ((/** @type {?} */ (newChild))).parent = this;\n            this.childNodes.splice(refIndex, 0, newChild);\n        }\n    }\n    /**\n     * @param {?} predicate\n     * @return {?}\n     */\n    query(predicate) {\n        /** @type {?} */\n        const results = this.queryAll(predicate);\n        return results[0] || null;\n    }\n    /**\n     * @param {?} predicate\n     * @return {?}\n     */\n    queryAll(predicate) {\n        /** @type {?} */\n        const matches = [];\n        _queryElementChildren(this, predicate, matches);\n        return matches;\n    }\n    /**\n     * @param {?} predicate\n     * @return {?}\n     */\n    queryAllNodes(predicate) {\n        /** @type {?} */\n        const matches = [];\n        _queryNodeChildren(this, predicate, matches);\n        return matches;\n    }\n    /**\n     * @return {?}\n     */\n    get children() {\n        return (/** @type {?} */ (this.childNodes //\n            .filter((/**\n         * @param {?} node\n         * @return {?}\n         */\n        (node) => node instanceof DebugElement__PRE_R3__))));\n    }\n    /**\n     * @param {?} eventName\n     * @param {?} eventObj\n     * @return {?}\n     */\n    triggerEventHandler(eventName, eventObj) {\n        this.listeners.forEach((/**\n         * @param {?} listener\n         * @return {?}\n         */\n        (listener) => {\n            if (listener.name == eventName) {\n                listener.callback(eventObj);\n            }\n        }));\n    }\n}\nif (false) {\n    /** @type {?} */\n    DebugElement__PRE_R3__.prototype.name;\n    /** @type {?} */\n    DebugElement__PRE_R3__.prototype.properties;\n    /** @type {?} */\n    DebugElement__PRE_R3__.prototype.attributes;\n    /** @type {?} */\n    DebugElement__PRE_R3__.prototype.classes;\n    /** @type {?} */\n    DebugElement__PRE_R3__.prototype.styles;\n    /** @type {?} */\n    DebugElement__PRE_R3__.prototype.childNodes;\n    /** @type {?} */\n    DebugElement__PRE_R3__.prototype.nativeElement;\n}\n/**\n * \\@publicApi\n * @param {?} debugEls\n * @return {?}\n */\nfunction asNativeElements(debugEls) {\n    return debugEls.map((/**\n     * @param {?} el\n     * @return {?}\n     */\n    (el) => el.nativeElement));\n}\n/**\n * @param {?} element\n * @param {?} predicate\n * @param {?} matches\n * @return {?}\n */\nfunction _queryElementChildren(element, predicate, matches) {\n    element.childNodes.forEach((/**\n     * @param {?} node\n     * @return {?}\n     */\n    node => {\n        if (node instanceof DebugElement__PRE_R3__) {\n            if (predicate(node)) {\n                matches.push(node);\n            }\n            _queryElementChildren(node, predicate, matches);\n        }\n    }));\n}\n/**\n * @param {?} parentNode\n * @param {?} predicate\n * @param {?} matches\n * @return {?}\n */\nfunction _queryNodeChildren(parentNode, predicate, matches) {\n    if (parentNode instanceof DebugElement__PRE_R3__) {\n        parentNode.childNodes.forEach((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => {\n            if (predicate(node)) {\n                matches.push(node);\n            }\n            if (node instanceof DebugElement__PRE_R3__) {\n                _queryNodeChildren(node, predicate, matches);\n            }\n        }));\n    }\n}\nclass DebugNode__POST_R3__ {\n    /**\n     * @param {?} nativeNode\n     */\n    constructor(nativeNode) {\n        this.nativeNode = nativeNode;\n    }\n    /**\n     * @return {?}\n     */\n    get parent() {\n        /** @type {?} */\n        const parent = (/** @type {?} */ (this.nativeNode.parentNode));\n        return parent ? new DebugElement__POST_R3__(parent) : null;\n    }\n    /**\n     * @return {?}\n     */\n    get injector() {\n        return getInjector(this.nativeNode);\n    }\n    /**\n     * @return {?}\n     */\n    get componentInstance() {\n        /** @type {?} */\n        const nativeElement = this.nativeNode;\n        return nativeElement &&\n            (getComponent((/** @type {?} */ (nativeElement))) || getOwningComponent(nativeElement));\n    }\n    /**\n     * @return {?}\n     */\n    get context() {\n        return getComponent((/** @type {?} */ (this.nativeNode))) || getContext((/** @type {?} */ (this.nativeNode)));\n    }\n    /**\n     * @return {?}\n     */\n    get listeners() {\n        return getListeners((/** @type {?} */ (this.nativeNode))).filter((/**\n         * @param {?} listener\n         * @return {?}\n         */\n        listener => listener.type === 'dom'));\n    }\n    /**\n     * @return {?}\n     */\n    get references() {\n        return getLocalRefs(this.nativeNode);\n    }\n    /**\n     * @return {?}\n     */\n    get providerTokens() {\n        return getInjectionTokens((/** @type {?} */ (this.nativeNode)));\n    }\n}\nif (false) {\n    /** @type {?} */\n    DebugNode__POST_R3__.prototype.nativeNode;\n}\nclass DebugElement__POST_R3__ extends DebugNode__POST_R3__ {\n    /**\n     * @param {?} nativeNode\n     */\n    constructor(nativeNode) {\n        ngDevMode && assertDomNode(nativeNode);\n        super(nativeNode);\n    }\n    /**\n     * @return {?}\n     */\n    get nativeElement() {\n        return this.nativeNode.nodeType == Node.ELEMENT_NODE ? (/** @type {?} */ (this.nativeNode)) : null;\n    }\n    /**\n     * @return {?}\n     */\n    get name() {\n        try {\n            /** @type {?} */\n            const context = (/** @type {?} */ (loadLContext(this.nativeNode)));\n            /** @type {?} */\n            const lView = context.lView;\n            /** @type {?} */\n            const tData = lView[TVIEW].data;\n            /** @type {?} */\n            const tNode = (/** @type {?} */ (tData[context.nodeIndex]));\n            return (/** @type {?} */ (tNode.tagName));\n        }\n        catch (e) {\n            return this.nativeNode.nodeName;\n        }\n    }\n    /**\n     *  Gets a map of property names to property values for an element.\n     *\n     *  This map includes:\n     *  - Regular property bindings (e.g. `[id]=\"id\"`)\n     *  - Host property bindings (e.g. `host: { '[id]': \"id\" }`)\n     *  - Interpolated property bindings (e.g. `id=\"{{ value }}\")\n     *\n     *  It does not include:\n     *  - input property bindings (e.g. `[myCustomInput]=\"value\"`)\n     *  - attribute bindings (e.g. `[attr.role]=\"menu\"`)\n     * @return {?}\n     */\n    get properties() {\n        /** @type {?} */\n        const context = loadLContext(this.nativeNode, false);\n        if (context == null) {\n            return {};\n        }\n        /** @type {?} */\n        const lView = context.lView;\n        /** @type {?} */\n        const tData = lView[TVIEW].data;\n        /** @type {?} */\n        const tNode = (/** @type {?} */ (tData[context.nodeIndex]));\n        /** @type {?} */\n        const properties = {};\n        // Collect properties from the DOM.\n        copyDomProperties(this.nativeElement, properties);\n        // Collect properties from the bindings. This is needed for animation renderer which has\n        // synthetic properties which don't get reflected into the DOM.\n        collectPropertyBindings(properties, tNode, lView, tData);\n        return properties;\n    }\n    /**\n     * @return {?}\n     */\n    get attributes() {\n        /** @type {?} */\n        const attributes = {};\n        /** @type {?} */\n        const element = this.nativeElement;\n        if (!element) {\n            return attributes;\n        }\n        /** @type {?} */\n        const context = loadLContext(element, false);\n        if (context == null) {\n            return {};\n        }\n        /** @type {?} */\n        const lView = context.lView;\n        /** @type {?} */\n        const tNodeAttrs = ((/** @type {?} */ (lView[TVIEW].data[context.nodeIndex]))).attrs;\n        /** @type {?} */\n        const lowercaseTNodeAttrs = [];\n        // For debug nodes we take the element's attribute directly from the DOM since it allows us\n        // to account for ones that weren't set via bindings (e.g. ViewEngine keeps track of the ones\n        // that are set through `Renderer2`). The problem is that the browser will lowercase all names,\n        // however since we have the attributes already on the TNode, we can preserve the case by going\n        // through them once, adding them to the `attributes` map and putting their lower-cased name\n        // into an array. Afterwards when we're going through the native DOM attributes, we can check\n        // whether we haven't run into an attribute already through the TNode.\n        if (tNodeAttrs) {\n            /** @type {?} */\n            let i = 0;\n            while (i < tNodeAttrs.length) {\n                /** @type {?} */\n                const attrName = tNodeAttrs[i];\n                // Stop as soon as we hit a marker. We only care about the regular attributes. Everything\n                // else will be handled below when we read the final attributes off the DOM.\n                if (typeof attrName !== 'string')\n                    break;\n                /** @type {?} */\n                const attrValue = tNodeAttrs[i + 1];\n                attributes[attrName] = (/** @type {?} */ (attrValue));\n                lowercaseTNodeAttrs.push(attrName.toLowerCase());\n                i += 2;\n            }\n        }\n        /** @type {?} */\n        const eAttrs = element.attributes;\n        for (let i = 0; i < eAttrs.length; i++) {\n            /** @type {?} */\n            const attr = eAttrs[i];\n            /** @type {?} */\n            const lowercaseName = attr.name.toLowerCase();\n            // Make sure that we don't assign the same attribute both in its\n            // case-sensitive form and the lower-cased one from the browser.\n            if (lowercaseTNodeAttrs.indexOf(lowercaseName) === -1) {\n                // Save the lowercase name to align the behavior between browsers.\n                // IE preserves the case, while all other browser convert it to lower case.\n                attributes[lowercaseName] = attr.value;\n            }\n        }\n        return attributes;\n    }\n    /**\n     * @return {?}\n     */\n    get styles() {\n        if (this.nativeElement && ((/** @type {?} */ (this.nativeElement))).style) {\n            return (/** @type {?} */ (((/** @type {?} */ (this.nativeElement))).style));\n        }\n        return {};\n    }\n    /**\n     * @return {?}\n     */\n    get classes() {\n        /** @type {?} */\n        const result = {};\n        /** @type {?} */\n        const element = (/** @type {?} */ (this.nativeElement));\n        // SVG elements return an `SVGAnimatedString` instead of a plain string for the `className`.\n        /** @type {?} */\n        const className = (/** @type {?} */ (element.className));\n        /** @type {?} */\n        const classes = className && typeof className !== 'string' ? className.baseVal.split(' ') :\n            className.split(' ');\n        classes.forEach((/**\n         * @param {?} value\n         * @return {?}\n         */\n        (value) => result[value] = true));\n        return result;\n    }\n    /**\n     * @return {?}\n     */\n    get childNodes() {\n        /** @type {?} */\n        const childNodes = this.nativeNode.childNodes;\n        /** @type {?} */\n        const children = [];\n        for (let i = 0; i < childNodes.length; i++) {\n            /** @type {?} */\n            const element = childNodes[i];\n            children.push(getDebugNode__POST_R3__(element));\n        }\n        return children;\n    }\n    /**\n     * @return {?}\n     */\n    get children() {\n        /** @type {?} */\n        const nativeElement = this.nativeElement;\n        if (!nativeElement)\n            return [];\n        /** @type {?} */\n        const childNodes = nativeElement.children;\n        /** @type {?} */\n        const children = [];\n        for (let i = 0; i < childNodes.length; i++) {\n            /** @type {?} */\n            const element = childNodes[i];\n            children.push(getDebugNode__POST_R3__(element));\n        }\n        return children;\n    }\n    /**\n     * @param {?} predicate\n     * @return {?}\n     */\n    query(predicate) {\n        /** @type {?} */\n        const results = this.queryAll(predicate);\n        return results[0] || null;\n    }\n    /**\n     * @param {?} predicate\n     * @return {?}\n     */\n    queryAll(predicate) {\n        /** @type {?} */\n        const matches = [];\n        _queryAllR3(this, predicate, matches, true);\n        return matches;\n    }\n    /**\n     * @param {?} predicate\n     * @return {?}\n     */\n    queryAllNodes(predicate) {\n        /** @type {?} */\n        const matches = [];\n        _queryAllR3(this, predicate, matches, false);\n        return matches;\n    }\n    /**\n     * @param {?} eventName\n     * @param {?} eventObj\n     * @return {?}\n     */\n    triggerEventHandler(eventName, eventObj) {\n        /** @type {?} */\n        const node = (/** @type {?} */ (this.nativeNode));\n        /** @type {?} */\n        const invokedListeners = [];\n        this.listeners.forEach((/**\n         * @param {?} listener\n         * @return {?}\n         */\n        listener => {\n            if (listener.name === eventName) {\n                /** @type {?} */\n                const callback = listener.callback;\n                callback.call(node, eventObj);\n                invokedListeners.push(callback);\n            }\n        }));\n        // We need to check whether `eventListeners` exists, because it's something\n        // that Zone.js only adds to `EventTarget` in browser environments.\n        if (typeof node.eventListeners === 'function') {\n            // Note that in Ivy we wrap event listeners with a call to `event.preventDefault` in some\n            // cases. We use '__ngUnwrap__' as a special token that gives us access to the actual event\n            // listener.\n            node.eventListeners(eventName).forEach((/**\n             * @param {?} listener\n             * @return {?}\n             */\n            (listener) => {\n                // In order to ensure that we can detect the special __ngUnwrap__ token described above, we\n                // use `toString` on the listener and see if it contains the token. We use this approach to\n                // ensure that it still worked with compiled code since it cannot remove or rename string\n                // literals. We also considered using a special function name (i.e. if(listener.name ===\n                // special)) but that was more cumbersome and we were also concerned the compiled code could\n                // strip the name, turning the condition in to (\"\" === \"\") and always returning true.\n                if (listener.toString().indexOf('__ngUnwrap__') !== -1) {\n                    /** @type {?} */\n                    const unwrappedListener = listener('__ngUnwrap__');\n                    return invokedListeners.indexOf(unwrappedListener) === -1 &&\n                        unwrappedListener.call(node, eventObj);\n                }\n            }));\n        }\n    }\n}\n/**\n * @param {?} element\n * @param {?} properties\n * @return {?}\n */\nfunction copyDomProperties(element, properties) {\n    if (element) {\n        // Skip own properties (as those are patched)\n        /** @type {?} */\n        let obj = Object.getPrototypeOf(element);\n        /** @type {?} */\n        const NodePrototype = Node.prototype;\n        while (obj !== null && obj !== NodePrototype) {\n            /** @type {?} */\n            const descriptors = Object.getOwnPropertyDescriptors(obj);\n            for (let key in descriptors) {\n                if (!key.startsWith('__') && !key.startsWith('on')) {\n                    // don't include properties starting with `__` and `on`.\n                    // `__` are patched values which should not be included.\n                    // `on` are listeners which also should not be included.\n                    /** @type {?} */\n                    const value = ((/** @type {?} */ (element)))[key];\n                    if (isPrimitiveValue(value)) {\n                        properties[key] = value;\n                    }\n                }\n            }\n            obj = Object.getPrototypeOf(obj);\n        }\n    }\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isPrimitiveValue(value) {\n    return typeof value === 'string' || typeof value === 'boolean' || typeof value === 'number' ||\n        value === null;\n}\n/**\n * @param {?} parentElement\n * @param {?} predicate\n * @param {?} matches\n * @param {?} elementsOnly\n * @return {?}\n */\nfunction _queryAllR3(parentElement, predicate, matches, elementsOnly) {\n    /** @type {?} */\n    const context = loadLContext(parentElement.nativeNode, false);\n    if (context !== null) {\n        /** @type {?} */\n        const parentTNode = (/** @type {?} */ (context.lView[TVIEW].data[context.nodeIndex]));\n        _queryNodeChildrenR3(parentTNode, context.lView, predicate, matches, elementsOnly, parentElement.nativeNode);\n    }\n    else {\n        // If the context is null, then `parentElement` was either created with Renderer2 or native DOM\n        // APIs.\n        _queryNativeNodeDescendants(parentElement.nativeNode, predicate, matches, elementsOnly);\n    }\n}\n/**\n * Recursively match the current TNode against the predicate, and goes on with the next ones.\n *\n * @param {?} tNode the current TNode\n * @param {?} lView the LView of this TNode\n * @param {?} predicate the predicate to match\n * @param {?} matches the list of positive matches\n * @param {?} elementsOnly whether only elements should be searched\n * @param {?} rootNativeNode the root native node on which predicate should not be matched\n * @return {?}\n */\nfunction _queryNodeChildrenR3(tNode, lView, predicate, matches, elementsOnly, rootNativeNode) {\n    /** @type {?} */\n    const nativeNode = getNativeByTNodeOrNull(tNode, lView);\n    // For each type of TNode, specific logic is executed.\n    if (tNode.type === 3 /* Element */ || tNode.type === 4 /* ElementContainer */) {\n        // Case 1: the TNode is an element\n        // The native node has to be checked.\n        _addQueryMatchR3(nativeNode, predicate, matches, elementsOnly, rootNativeNode);\n        if (isComponentHost(tNode)) {\n            // If the element is the host of a component, then all nodes in its view have to be processed.\n            // Note: the component's content (tNode.child) will be processed from the insertion points.\n            /** @type {?} */\n            const componentView = getComponentLViewByIndex(tNode.index, lView);\n            if (componentView && componentView[TVIEW].firstChild) {\n                _queryNodeChildrenR3((/** @type {?} */ (componentView[TVIEW].firstChild)), componentView, predicate, matches, elementsOnly, rootNativeNode);\n            }\n        }\n        else {\n            if (tNode.child) {\n                // Otherwise, its children have to be processed.\n                _queryNodeChildrenR3(tNode.child, lView, predicate, matches, elementsOnly, rootNativeNode);\n            }\n            // We also have to query the DOM directly in order to catch elements inserted through\n            // Renderer2. Note that this is __not__ optimal, because we're walking similar trees multiple\n            // times. ViewEngine could do it more efficiently, because all the insertions go through\n            // Renderer2, however that's not the case in Ivy. This approach is being used because:\n            // 1. Matching the ViewEngine behavior would mean potentially introducing a depedency\n            //    from `Renderer2` to Ivy which could bring Ivy code into ViewEngine.\n            // 2. We would have to make `Renderer3` \"know\" about debug nodes.\n            // 3. It allows us to capture nodes that were inserted directly via the DOM.\n            nativeNode && _queryNativeNodeDescendants(nativeNode, predicate, matches, elementsOnly);\n        }\n        // In all cases, if a dynamic container exists for this node, each view inside it has to be\n        // processed.\n        /** @type {?} */\n        const nodeOrContainer = lView[tNode.index];\n        if (isLContainer(nodeOrContainer)) {\n            _queryNodeChildrenInContainerR3(nodeOrContainer, predicate, matches, elementsOnly, rootNativeNode);\n        }\n    }\n    else if (tNode.type === 0 /* Container */) {\n        // Case 2: the TNode is a container\n        // The native node has to be checked.\n        /** @type {?} */\n        const lContainer = lView[tNode.index];\n        _addQueryMatchR3(lContainer[NATIVE], predicate, matches, elementsOnly, rootNativeNode);\n        // Each view inside the container has to be processed.\n        _queryNodeChildrenInContainerR3(lContainer, predicate, matches, elementsOnly, rootNativeNode);\n    }\n    else if (tNode.type === 1 /* Projection */) {\n        // Case 3: the TNode is a projection insertion point (i.e. a <ng-content>).\n        // The nodes projected at this location all need to be processed.\n        /** @type {?} */\n        const componentView = (/** @type {?} */ (lView))[DECLARATION_COMPONENT_VIEW];\n        /** @type {?} */\n        const componentHost = (/** @type {?} */ (componentView[T_HOST]));\n        /** @type {?} */\n        const head = ((/** @type {?} */ (componentHost.projection)))[(/** @type {?} */ (tNode.projection))];\n        if (Array.isArray(head)) {\n            for (let nativeNode of head) {\n                _addQueryMatchR3(nativeNode, predicate, matches, elementsOnly, rootNativeNode);\n            }\n        }\n        else if (head) {\n            /** @type {?} */\n            const nextLView = (/** @type {?} */ ((/** @type {?} */ (componentView[PARENT]))));\n            /** @type {?} */\n            const nextTNode = (/** @type {?} */ (nextLView[TVIEW].data[head.index]));\n            _queryNodeChildrenR3(nextTNode, nextLView, predicate, matches, elementsOnly, rootNativeNode);\n        }\n    }\n    else if (tNode.child) {\n        // Case 4: the TNode is a view.\n        _queryNodeChildrenR3(tNode.child, lView, predicate, matches, elementsOnly, rootNativeNode);\n    }\n    // We don't want to go to the next sibling of the root node.\n    if (rootNativeNode !== nativeNode) {\n        // To determine the next node to be processed, we need to use the next or the projectionNext\n        // link, depending on whether the current node has been projected.\n        /** @type {?} */\n        const nextTNode = (tNode.flags & 4 /* isProjected */) ? tNode.projectionNext : tNode.next;\n        if (nextTNode) {\n            _queryNodeChildrenR3(nextTNode, lView, predicate, matches, elementsOnly, rootNativeNode);\n        }\n    }\n}\n/**\n * Process all TNodes in a given container.\n *\n * @param {?} lContainer the container to be processed\n * @param {?} predicate the predicate to match\n * @param {?} matches the list of positive matches\n * @param {?} elementsOnly whether only elements should be searched\n * @param {?} rootNativeNode the root native node on which predicate should not be matched\n * @return {?}\n */\nfunction _queryNodeChildrenInContainerR3(lContainer, predicate, matches, elementsOnly, rootNativeNode) {\n    for (let i = CONTAINER_HEADER_OFFSET; i < lContainer.length; i++) {\n        /** @type {?} */\n        const childView = lContainer[i];\n        _queryNodeChildrenR3((/** @type {?} */ (childView[TVIEW].node)), childView, predicate, matches, elementsOnly, rootNativeNode);\n    }\n}\n/**\n * Match the current native node against the predicate.\n *\n * @param {?} nativeNode the current native node\n * @param {?} predicate the predicate to match\n * @param {?} matches the list of positive matches\n * @param {?} elementsOnly whether only elements should be searched\n * @param {?} rootNativeNode the root native node on which predicate should not be matched\n * @return {?}\n */\nfunction _addQueryMatchR3(nativeNode, predicate, matches, elementsOnly, rootNativeNode) {\n    if (rootNativeNode !== nativeNode) {\n        /** @type {?} */\n        const debugNode = getDebugNode$1(nativeNode);\n        if (!debugNode) {\n            return;\n        }\n        // Type of the \"predicate and \"matches\" array are set based on the value of\n        // the \"elementsOnly\" parameter. TypeScript is not able to properly infer these\n        // types with generics, so we manually cast the parameters accordingly.\n        if (elementsOnly && debugNode instanceof DebugElement__POST_R3__ && predicate(debugNode) &&\n            matches.indexOf(debugNode) === -1) {\n            matches.push(debugNode);\n        }\n        else if (!elementsOnly && ((/** @type {?} */ (predicate)))(debugNode) &&\n            ((/** @type {?} */ (matches))).indexOf(debugNode) === -1) {\n            ((/** @type {?} */ (matches))).push(debugNode);\n        }\n    }\n}\n/**\n * Match all the descendants of a DOM node against a predicate.\n *\n * @param {?} parentNode\n * @param {?} predicate the predicate to match\n * @param {?} matches the list of positive matches\n * @param {?} elementsOnly whether only elements should be searched\n * @return {?}\n */\nfunction _queryNativeNodeDescendants(parentNode, predicate, matches, elementsOnly) {\n    /** @type {?} */\n    const nodes = parentNode.childNodes;\n    /** @type {?} */\n    const length = nodes.length;\n    for (let i = 0; i < length; i++) {\n        /** @type {?} */\n        const node = nodes[i];\n        /** @type {?} */\n        const debugNode = getDebugNode$1(node);\n        if (debugNode) {\n            if (elementsOnly && debugNode instanceof DebugElement__POST_R3__ && predicate(debugNode) &&\n                matches.indexOf(debugNode) === -1) {\n                matches.push(debugNode);\n            }\n            else if (!elementsOnly && ((/** @type {?} */ (predicate)))(debugNode) &&\n                ((/** @type {?} */ (matches))).indexOf(debugNode) === -1) {\n                ((/** @type {?} */ (matches))).push(debugNode);\n            }\n            _queryNativeNodeDescendants(node, predicate, matches, elementsOnly);\n        }\n    }\n}\n/**\n * Iterates through the property bindings for a given node and generates\n * a map of property names to values. This map only contains property bindings\n * defined in templates, not in host bindings.\n * @param {?} properties\n * @param {?} tNode\n * @param {?} lView\n * @param {?} tData\n * @return {?}\n */\nfunction collectPropertyBindings(properties, tNode, lView, tData) {\n    /** @type {?} */\n    let bindingIndexes = tNode.propertyBindings;\n    if (bindingIndexes !== null) {\n        for (let i = 0; i < bindingIndexes.length; i++) {\n            /** @type {?} */\n            const bindingIndex = bindingIndexes[i];\n            /** @type {?} */\n            const propMetadata = (/** @type {?} */ (tData[bindingIndex]));\n            /** @type {?} */\n            const metadataParts = propMetadata.split(INTERPOLATION_DELIMITER);\n            /** @type {?} */\n            const propertyName = metadataParts[0];\n            if (metadataParts.length > 1) {\n                /** @type {?} */\n                let value = metadataParts[1];\n                for (let j = 1; j < metadataParts.length - 1; j++) {\n                    value += renderStringify(lView[bindingIndex + j - 1]) + metadataParts[j + 1];\n                }\n                properties[propertyName] = value;\n            }\n            else {\n                properties[propertyName] = lView[bindingIndex];\n            }\n        }\n    }\n}\n// Need to keep the nodes in a global Map so that multiple angular apps are supported.\n/** @type {?} */\nconst _nativeNodeToDebugNode = new Map();\n/**\n * @param {?} nativeNode\n * @return {?}\n */\nfunction getDebugNode__PRE_R3__(nativeNode) {\n    return _nativeNodeToDebugNode.get(nativeNode) || null;\n}\n/** @type {?} */\nconst NG_DEBUG_PROPERTY = '__ng_debug__';\n/**\n * @param {?} nativeNode\n * @return {?}\n */\nfunction getDebugNode__POST_R3__(nativeNode) {\n    if (nativeNode instanceof Node) {\n        if (!(nativeNode.hasOwnProperty(NG_DEBUG_PROPERTY))) {\n            ((/** @type {?} */ (nativeNode)))[NG_DEBUG_PROPERTY] = nativeNode.nodeType == Node.ELEMENT_NODE ?\n                new DebugElement__POST_R3__((/** @type {?} */ (nativeNode))) :\n                new DebugNode__POST_R3__(nativeNode);\n        }\n        return ((/** @type {?} */ (nativeNode)))[NG_DEBUG_PROPERTY];\n    }\n    return null;\n}\n/**\n * \\@publicApi\n * @type {?}\n */\nconst getDebugNode$1 = getDebugNode__POST_R3__;\n/**\n * @param {?} nativeNode\n * @return {?}\n */\nfunction getDebugNodeR2__PRE_R3__(nativeNode) {\n    return getDebugNode__PRE_R3__(nativeNode);\n}\n/**\n * @param {?} _nativeNode\n * @return {?}\n */\nfunction getDebugNodeR2__POST_R3__(_nativeNode) {\n    return null;\n}\n/** @type {?} */\nconst getDebugNodeR2 = getDebugNodeR2__POST_R3__;\n/**\n * @return {?}\n */\nfunction getAllDebugNodes() {\n    return Array.from(_nativeNodeToDebugNode.values());\n}\n/**\n * @param {?} node\n * @return {?}\n */\nfunction indexDebugNode(node) {\n    _nativeNodeToDebugNode.set(node.nativeNode, node);\n}\n/**\n * @param {?} node\n * @return {?}\n */\nfunction removeDebugNodeFromIndex(node) {\n    _nativeNodeToDebugNode.delete(node.nativeNode);\n}\n/**\n * A boolean-valued function over a value, possibly including context information\n * regarding that value's position in an array.\n *\n * \\@publicApi\n * @record\n * @template T\n */\nfunction Predicate() { }\n/**\n * \\@publicApi\n * @type {?}\n */\nconst DebugNode$1 = DebugNode__POST_R3__;\n/**\n * \\@publicApi\n * @type {?}\n */\nconst DebugElement = DebugElement__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/change_detection.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/platform_core_providers.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst _CORE_PLATFORM_PROVIDERS = [\n    // Set a default platform name for platforms that don't set it explicitly.\n    { provide: PLATFORM_ID, useValue: 'unknown' },\n    { provide: PlatformRef, deps: [Injector] },\n    { provide: TestabilityRegistry, deps: [] },\n    { provide: Console, deps: [] },\n];\n/**\n * This platform has to be included in any other platform\n *\n * \\@publicApi\n * @type {?}\n */\nconst platformCore = createPlatformFactory(null, 'core', _CORE_PLATFORM_PROVIDERS);\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/application_module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @return {?}\n */\nfunction _iterableDiffersFactory() {\n    return defaultIterableDiffers;\n}\n/**\n * @return {?}\n */\nfunction _keyValueDiffersFactory() {\n    return defaultKeyValueDiffers;\n}\n/**\n * @param {?=} locale\n * @return {?}\n */\nfunction _localeFactory(locale) {\n    locale = locale || getGlobalLocale();\n    if (ivyEnabled) {\n        setLocaleId(locale);\n    }\n    return locale;\n}\n/**\n * Work out the locale from the potential global properties.\n *\n * * Closure Compiler: use `goog.LOCALE`.\n * * Ivy enabled: use `$localize.locale`\n * @return {?}\n */\nfunction getGlobalLocale() {\n    if (typeof ngI18nClosureMode !== 'undefined' && ngI18nClosureMode &&\n        typeof goog !== 'undefined' && goog.LOCALE !== 'en') {\n        // * The default `goog.LOCALE` value is `en`, while Angular used `en-US`.\n        // * In order to preserve backwards compatibility, we use Angular default value over\n        //   Closure Compiler's one.\n        return goog.LOCALE;\n    }\n    else {\n        // KEEP `typeof $localize !== 'undefined' && $localize.locale` IN SYNC WITH THE LOCALIZE\n        // COMPILE-TIME INLINER.\n        //\n        // * During compile time inlining of translations the expression will be replaced\n        //   with a string literal that is the current locale. Other forms of this expression are not\n        //   guaranteed to be replaced.\n        //\n        // * During runtime translation evaluation, the developer is required to set `$localize.locale`\n        //   if required, or just to provide their own `LOCALE_ID` provider.\n        return (ivyEnabled && typeof $localize !== 'undefined' && $localize.locale) ||\n            DEFAULT_LOCALE_ID;\n    }\n}\nconst ɵ0$g = USD_CURRENCY_CODE;\n/**\n * A built-in [dependency injection token](guide/glossary#di-token)\n * that is used to configure the root injector for bootstrapping.\n * @type {?}\n */\nconst APPLICATION_MODULE_PROVIDERS = [\n    {\n        provide: ApplicationRef,\n        useClass: ApplicationRef,\n        deps: [NgZone, Console, Injector, ErrorHandler, ComponentFactoryResolver, ApplicationInitStatus]\n    },\n    { provide: SCHEDULER, deps: [NgZone], useFactory: zoneSchedulerFactory },\n    {\n        provide: ApplicationInitStatus,\n        useClass: ApplicationInitStatus,\n        deps: [[new Optional(), APP_INITIALIZER]]\n    },\n    { provide: Compiler, useClass: Compiler, deps: [] },\n    APP_ID_RANDOM_PROVIDER,\n    { provide: IterableDiffers, useFactory: _iterableDiffersFactory, deps: [] },\n    { provide: KeyValueDiffers, useFactory: _keyValueDiffersFactory, deps: [] },\n    {\n        provide: LOCALE_ID$1,\n        useFactory: _localeFactory,\n        deps: [[new Inject(LOCALE_ID$1), new Optional(), new SkipSelf()]]\n    },\n    { provide: DEFAULT_CURRENCY_CODE, useValue: ɵ0$g },\n];\n/**\n * Schedule work at next available slot.\n *\n * In Ivy this is just `requestAnimationFrame`. For compatibility reasons when bootstrapped\n * using `platformRef.bootstrap` we need to use `NgZone.onStable` as the scheduling mechanism.\n * This overrides the scheduling mechanism in Ivy to `NgZone.onStable`.\n *\n * @param {?} ngZone NgZone to use for scheduling.\n * @return {?}\n */\nfunction zoneSchedulerFactory(ngZone) {\n    /** @type {?} */\n    let queue = [];\n    ngZone.onStable.subscribe((/**\n     * @return {?}\n     */\n    () => {\n        while (queue.length) {\n            (/** @type {?} */ (queue.pop()))();\n        }\n    }));\n    return (/**\n     * @param {?} fn\n     * @return {?}\n     */\n    function (fn) {\n        queue.push(fn);\n    });\n}\n/**\n * Configures the root injector for an app with\n * providers of `\\@angular/core` dependencies that `ApplicationRef` needs\n * to bootstrap components.\n *\n * Re-exported by `BrowserModule`, which is included automatically in the root\n * `AppModule` when you create a new app with the CLI `new` command.\n *\n * \\@publicApi\n */\nclass ApplicationModule {\n    // Inject ApplicationRef to make it eager...\n    /**\n     * @param {?} appRef\n     */\n    constructor(appRef) { }\n}\nApplicationModule.ɵmod = ɵɵdefineNgModule({ type: ApplicationModule });\nApplicationModule.ɵinj = ɵɵdefineInjector({ factory: function ApplicationModule_Factory(t) { return new (t || ApplicationModule)(ɵɵinject(ApplicationRef)); }, providers: APPLICATION_MODULE_PROVIDERS });\n/** @nocollapse */\nApplicationModule.ctorParameters = () => [\n    { type: ApplicationRef }\n];\n/*@__PURE__*/ (function () { setClassMetadata(ApplicationModule, [{\n        type: NgModule,\n        args: [{ providers: APPLICATION_MODULE_PROVIDERS }]\n    }], function () { return [{ type: ApplicationRef }]; }, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/element.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} flags\n * @param {?} matchedQueriesDsl\n * @param {?} ngContentIndex\n * @param {?} childCount\n * @param {?=} handleEvent\n * @param {?=} templateFactory\n * @return {?}\n */\nfunction anchorDef(flags, matchedQueriesDsl, ngContentIndex, childCount, handleEvent, templateFactory) {\n    flags |= 1 /* TypeElement */;\n    const { matchedQueries, references, matchedQueryIds } = splitMatchedQueriesDsl(matchedQueriesDsl);\n    /** @type {?} */\n    const template = templateFactory ? resolveDefinition(templateFactory) : null;\n    return {\n        // will bet set by the view definition\n        nodeIndex: -1,\n        parent: null,\n        renderParent: null,\n        bindingIndex: -1,\n        outputIndex: -1,\n        // regular values\n        flags,\n        checkIndex: -1,\n        childFlags: 0,\n        directChildFlags: 0,\n        childMatchedQueries: 0,\n        matchedQueries,\n        matchedQueryIds,\n        references,\n        ngContentIndex,\n        childCount,\n        bindings: [],\n        bindingFlags: 0,\n        outputs: [],\n        element: {\n            ns: null,\n            name: null,\n            attrs: null,\n            template,\n            componentProvider: null,\n            componentView: null,\n            componentRendererType: null,\n            publicProviders: null,\n            allProviders: null,\n            handleEvent: handleEvent || NOOP\n        },\n        provider: null,\n        text: null,\n        query: null,\n        ngContent: null\n    };\n}\n/**\n * @param {?} checkIndex\n * @param {?} flags\n * @param {?} matchedQueriesDsl\n * @param {?} ngContentIndex\n * @param {?} childCount\n * @param {?} namespaceAndName\n * @param {?=} fixedAttrs\n * @param {?=} bindings\n * @param {?=} outputs\n * @param {?=} handleEvent\n * @param {?=} componentView\n * @param {?=} componentRendererType\n * @return {?}\n */\nfunction elementDef(checkIndex, flags, matchedQueriesDsl, ngContentIndex, childCount, namespaceAndName, fixedAttrs = [], bindings, outputs, handleEvent, componentView, componentRendererType) {\n    if (!handleEvent) {\n        handleEvent = NOOP;\n    }\n    const { matchedQueries, references, matchedQueryIds } = splitMatchedQueriesDsl(matchedQueriesDsl);\n    /** @type {?} */\n    let ns = (/** @type {?} */ (null));\n    /** @type {?} */\n    let name = (/** @type {?} */ (null));\n    if (namespaceAndName) {\n        [ns, name] = splitNamespace(namespaceAndName);\n    }\n    bindings = bindings || [];\n    /** @type {?} */\n    const bindingDefs = [];\n    for (let i = 0; i < bindings.length; i++) {\n        const [bindingFlags, namespaceAndName, suffixOrSecurityContext] = bindings[i];\n        const [ns, name] = splitNamespace(namespaceAndName);\n        /** @type {?} */\n        let securityContext = (/** @type {?} */ (undefined));\n        /** @type {?} */\n        let suffix = (/** @type {?} */ (undefined));\n        switch (bindingFlags & 15 /* Types */) {\n            case 4 /* TypeElementStyle */:\n                suffix = (/** @type {?} */ (suffixOrSecurityContext));\n                break;\n            case 1 /* TypeElementAttribute */:\n            case 8 /* TypeProperty */:\n                securityContext = (/** @type {?} */ (suffixOrSecurityContext));\n                break;\n        }\n        bindingDefs[i] =\n            { flags: bindingFlags, ns, name, nonMinifiedName: name, securityContext, suffix };\n    }\n    outputs = outputs || [];\n    /** @type {?} */\n    const outputDefs = [];\n    for (let i = 0; i < outputs.length; i++) {\n        const [target, eventName] = outputs[i];\n        outputDefs[i] =\n            { type: 0 /* ElementOutput */, target: (/** @type {?} */ (target)), eventName, propName: null };\n    }\n    fixedAttrs = fixedAttrs || [];\n    /** @type {?} */\n    const attrs = (/** @type {?} */ (fixedAttrs.map((/**\n     * @param {?} __0\n     * @return {?}\n     */\n    ([namespaceAndName, value]) => {\n        const [ns, name] = splitNamespace(namespaceAndName);\n        return [ns, name, value];\n    }))));\n    componentRendererType = resolveRendererType2(componentRendererType);\n    if (componentView) {\n        flags |= 33554432 /* ComponentView */;\n    }\n    flags |= 1 /* TypeElement */;\n    return {\n        // will bet set by the view definition\n        nodeIndex: -1,\n        parent: null,\n        renderParent: null,\n        bindingIndex: -1,\n        outputIndex: -1,\n        // regular values\n        checkIndex,\n        flags,\n        childFlags: 0,\n        directChildFlags: 0,\n        childMatchedQueries: 0,\n        matchedQueries,\n        matchedQueryIds,\n        references,\n        ngContentIndex,\n        childCount,\n        bindings: bindingDefs,\n        bindingFlags: calcBindingFlags(bindingDefs),\n        outputs: outputDefs,\n        element: {\n            ns,\n            name,\n            attrs,\n            template: null,\n            // will bet set by the view definition\n            componentProvider: null,\n            componentView: componentView || null,\n            componentRendererType: componentRendererType,\n            publicProviders: null,\n            allProviders: null,\n            handleEvent: handleEvent || NOOP,\n        },\n        provider: null,\n        text: null,\n        query: null,\n        ngContent: null\n    };\n}\n/**\n * @param {?} view\n * @param {?} renderHost\n * @param {?} def\n * @return {?}\n */\nfunction createElement(view, renderHost, def) {\n    /** @type {?} */\n    const elDef = (/** @type {?} */ (def.element));\n    /** @type {?} */\n    const rootSelectorOrNode = view.root.selectorOrNode;\n    /** @type {?} */\n    const renderer = view.renderer;\n    /** @type {?} */\n    let el;\n    if (view.parent || !rootSelectorOrNode) {\n        if (elDef.name) {\n            el = renderer.createElement(elDef.name, elDef.ns);\n        }\n        else {\n            el = renderer.createComment('');\n        }\n        /** @type {?} */\n        const parentEl = getParentRenderElement(view, renderHost, def);\n        if (parentEl) {\n            renderer.appendChild(parentEl, el);\n        }\n    }\n    else {\n        // when using native Shadow DOM, do not clear the root element contents to allow slot projection\n        /** @type {?} */\n        const preserveContent = (!!elDef.componentRendererType &&\n            elDef.componentRendererType.encapsulation === ViewEncapsulation$1.ShadowDom);\n        el = renderer.selectRootElement(rootSelectorOrNode, preserveContent);\n    }\n    if (elDef.attrs) {\n        for (let i = 0; i < elDef.attrs.length; i++) {\n            const [ns, name, value] = elDef.attrs[i];\n            renderer.setAttribute(el, name, value, ns);\n        }\n    }\n    return el;\n}\n/**\n * @param {?} view\n * @param {?} compView\n * @param {?} def\n * @param {?} el\n * @return {?}\n */\nfunction listenToElementOutputs(view, compView, def, el) {\n    for (let i = 0; i < def.outputs.length; i++) {\n        /** @type {?} */\n        const output = def.outputs[i];\n        /** @type {?} */\n        const handleEventClosure = renderEventHandlerClosure(view, def.nodeIndex, elementEventFullName(output.target, output.eventName));\n        /** @type {?} */\n        let listenTarget = output.target;\n        /** @type {?} */\n        let listenerView = view;\n        if (output.target === 'component') {\n            listenTarget = null;\n            listenerView = compView;\n        }\n        /** @type {?} */\n        const disposable = (/** @type {?} */ (listenerView.renderer.listen(listenTarget || el, output.eventName, handleEventClosure)));\n        (/** @type {?} */ (view.disposables))[def.outputIndex + i] = disposable;\n    }\n}\n/**\n * @param {?} view\n * @param {?} index\n * @param {?} eventName\n * @return {?}\n */\nfunction renderEventHandlerClosure(view, index, eventName) {\n    return (/**\n     * @param {?} event\n     * @return {?}\n     */\n    (event) => dispatchEvent(view, index, eventName, event));\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} v0\n * @param {?} v1\n * @param {?} v2\n * @param {?} v3\n * @param {?} v4\n * @param {?} v5\n * @param {?} v6\n * @param {?} v7\n * @param {?} v8\n * @param {?} v9\n * @return {?}\n */\nfunction checkAndUpdateElementInline(view, def, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    /** @type {?} */\n    const bindLen = def.bindings.length;\n    /** @type {?} */\n    let changed = false;\n    if (bindLen > 0 && checkAndUpdateElementValue(view, def, 0, v0))\n        changed = true;\n    if (bindLen > 1 && checkAndUpdateElementValue(view, def, 1, v1))\n        changed = true;\n    if (bindLen > 2 && checkAndUpdateElementValue(view, def, 2, v2))\n        changed = true;\n    if (bindLen > 3 && checkAndUpdateElementValue(view, def, 3, v3))\n        changed = true;\n    if (bindLen > 4 && checkAndUpdateElementValue(view, def, 4, v4))\n        changed = true;\n    if (bindLen > 5 && checkAndUpdateElementValue(view, def, 5, v5))\n        changed = true;\n    if (bindLen > 6 && checkAndUpdateElementValue(view, def, 6, v6))\n        changed = true;\n    if (bindLen > 7 && checkAndUpdateElementValue(view, def, 7, v7))\n        changed = true;\n    if (bindLen > 8 && checkAndUpdateElementValue(view, def, 8, v8))\n        changed = true;\n    if (bindLen > 9 && checkAndUpdateElementValue(view, def, 9, v9))\n        changed = true;\n    return changed;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} values\n * @return {?}\n */\nfunction checkAndUpdateElementDynamic(view, def, values) {\n    /** @type {?} */\n    let changed = false;\n    for (let i = 0; i < values.length; i++) {\n        if (checkAndUpdateElementValue(view, def, i, values[i]))\n            changed = true;\n    }\n    return changed;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} bindingIdx\n * @param {?} value\n * @return {?}\n */\nfunction checkAndUpdateElementValue(view, def, bindingIdx, value) {\n    if (!checkAndUpdateBinding(view, def, bindingIdx, value)) {\n        return false;\n    }\n    /** @type {?} */\n    const binding = def.bindings[bindingIdx];\n    /** @type {?} */\n    const elData = asElementData(view, def.nodeIndex);\n    /** @type {?} */\n    const renderNode = elData.renderElement;\n    /** @type {?} */\n    const name = (/** @type {?} */ (binding.name));\n    switch (binding.flags & 15 /* Types */) {\n        case 1 /* TypeElementAttribute */:\n            setElementAttribute(view, binding, renderNode, binding.ns, name, value);\n            break;\n        case 2 /* TypeElementClass */:\n            setElementClass(view, renderNode, name, value);\n            break;\n        case 4 /* TypeElementStyle */:\n            setElementStyle(view, binding, renderNode, name, value);\n            break;\n        case 8 /* TypeProperty */:\n            /** @type {?} */\n            const bindView = (def.flags & 33554432 /* ComponentView */ &&\n                binding.flags & 32 /* SyntheticHostProperty */) ?\n                elData.componentView :\n                view;\n            setElementProperty(bindView, binding, renderNode, name, value);\n            break;\n    }\n    return true;\n}\n/**\n * @param {?} view\n * @param {?} binding\n * @param {?} renderNode\n * @param {?} ns\n * @param {?} name\n * @param {?} value\n * @return {?}\n */\nfunction setElementAttribute(view, binding, renderNode, ns, name, value) {\n    /** @type {?} */\n    const securityContext = binding.securityContext;\n    /** @type {?} */\n    let renderValue = securityContext ? view.root.sanitizer.sanitize(securityContext, value) : value;\n    renderValue = renderValue != null ? renderValue.toString() : null;\n    /** @type {?} */\n    const renderer = view.renderer;\n    if (value != null) {\n        renderer.setAttribute(renderNode, name, renderValue, ns);\n    }\n    else {\n        renderer.removeAttribute(renderNode, name, ns);\n    }\n}\n/**\n * @param {?} view\n * @param {?} renderNode\n * @param {?} name\n * @param {?} value\n * @return {?}\n */\nfunction setElementClass(view, renderNode, name, value) {\n    /** @type {?} */\n    const renderer = view.renderer;\n    if (value) {\n        renderer.addClass(renderNode, name);\n    }\n    else {\n        renderer.removeClass(renderNode, name);\n    }\n}\n/**\n * @param {?} view\n * @param {?} binding\n * @param {?} renderNode\n * @param {?} name\n * @param {?} value\n * @return {?}\n */\nfunction setElementStyle(view, binding, renderNode, name, value) {\n    /** @type {?} */\n    let renderValue = view.root.sanitizer.sanitize(SecurityContext.STYLE, (/** @type {?} */ (value)));\n    if (renderValue != null) {\n        renderValue = renderValue.toString();\n        /** @type {?} */\n        const unit = binding.suffix;\n        if (unit != null) {\n            renderValue = renderValue + unit;\n        }\n    }\n    else {\n        renderValue = null;\n    }\n    /** @type {?} */\n    const renderer = view.renderer;\n    if (renderValue != null) {\n        renderer.setStyle(renderNode, name, renderValue);\n    }\n    else {\n        renderer.removeStyle(renderNode, name);\n    }\n}\n/**\n * @param {?} view\n * @param {?} binding\n * @param {?} renderNode\n * @param {?} name\n * @param {?} value\n * @return {?}\n */\nfunction setElementProperty(view, binding, renderNode, name, value) {\n    /** @type {?} */\n    const securityContext = binding.securityContext;\n    /** @type {?} */\n    let renderValue = securityContext ? view.root.sanitizer.sanitize(securityContext, value) : value;\n    view.renderer.setProperty(renderNode, name, renderValue);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/query.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} flags\n * @param {?} id\n * @param {?} bindings\n * @return {?}\n */\nfunction queryDef(flags, id, bindings) {\n    /** @type {?} */\n    let bindingDefs = [];\n    for (let propName in bindings) {\n        /** @type {?} */\n        const bindingType = bindings[propName];\n        bindingDefs.push({ propName, bindingType });\n    }\n    return {\n        // will bet set by the view definition\n        nodeIndex: -1,\n        parent: null,\n        renderParent: null,\n        bindingIndex: -1,\n        outputIndex: -1,\n        // regular values\n        // TODO(vicb): check\n        checkIndex: -1,\n        flags,\n        childFlags: 0,\n        directChildFlags: 0,\n        childMatchedQueries: 0,\n        ngContentIndex: -1,\n        matchedQueries: {},\n        matchedQueryIds: 0,\n        references: {},\n        childCount: 0,\n        bindings: [],\n        bindingFlags: 0,\n        outputs: [],\n        element: null,\n        provider: null,\n        text: null,\n        query: { id, filterId: filterQueryId(id), bindings: bindingDefs },\n        ngContent: null\n    };\n}\n/**\n * @return {?}\n */\nfunction createQuery() {\n    return new QueryList();\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction dirtyParentQueries(view) {\n    /** @type {?} */\n    const queryIds = view.def.nodeMatchedQueries;\n    while (view.parent && isEmbeddedView(view)) {\n        /** @type {?} */\n        let tplDef = (/** @type {?} */ (view.parentNodeDef));\n        view = view.parent;\n        // content queries\n        /** @type {?} */\n        const end = tplDef.nodeIndex + tplDef.childCount;\n        for (let i = 0; i <= end; i++) {\n            /** @type {?} */\n            const nodeDef = view.def.nodes[i];\n            if ((nodeDef.flags & 67108864 /* TypeContentQuery */) &&\n                (nodeDef.flags & 536870912 /* DynamicQuery */) &&\n                ((/** @type {?} */ (nodeDef.query)).filterId & queryIds) === (/** @type {?} */ (nodeDef.query)).filterId) {\n                asQueryList(view, i).setDirty();\n            }\n            if ((nodeDef.flags & 1 /* TypeElement */ && i + nodeDef.childCount < tplDef.nodeIndex) ||\n                !(nodeDef.childFlags & 67108864 /* TypeContentQuery */) ||\n                !(nodeDef.childFlags & 536870912 /* DynamicQuery */)) {\n                // skip elements that don't contain the template element or no query.\n                i += nodeDef.childCount;\n            }\n        }\n    }\n    // view queries\n    if (view.def.nodeFlags & 134217728 /* TypeViewQuery */) {\n        for (let i = 0; i < view.def.nodes.length; i++) {\n            /** @type {?} */\n            const nodeDef = view.def.nodes[i];\n            if ((nodeDef.flags & 134217728 /* TypeViewQuery */) && (nodeDef.flags & 536870912 /* DynamicQuery */)) {\n                asQueryList(view, i).setDirty();\n            }\n            // only visit the root nodes\n            i += nodeDef.childCount;\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @return {?}\n */\nfunction checkAndUpdateQuery(view, nodeDef) {\n    /** @type {?} */\n    const queryList = asQueryList(view, nodeDef.nodeIndex);\n    if (!queryList.dirty) {\n        return;\n    }\n    /** @type {?} */\n    let directiveInstance;\n    /** @type {?} */\n    let newValues = (/** @type {?} */ (undefined));\n    if (nodeDef.flags & 67108864 /* TypeContentQuery */) {\n        /** @type {?} */\n        const elementDef = (/** @type {?} */ ((/** @type {?} */ (nodeDef.parent)).parent));\n        newValues = calcQueryValues(view, elementDef.nodeIndex, elementDef.nodeIndex + elementDef.childCount, (/** @type {?} */ (nodeDef.query)), []);\n        directiveInstance = asProviderData(view, (/** @type {?} */ (nodeDef.parent)).nodeIndex).instance;\n    }\n    else if (nodeDef.flags & 134217728 /* TypeViewQuery */) {\n        newValues = calcQueryValues(view, 0, view.def.nodes.length - 1, (/** @type {?} */ (nodeDef.query)), []);\n        directiveInstance = view.component;\n    }\n    queryList.reset(newValues);\n    /** @type {?} */\n    const bindings = (/** @type {?} */ (nodeDef.query)).bindings;\n    /** @type {?} */\n    let notify = false;\n    for (let i = 0; i < bindings.length; i++) {\n        /** @type {?} */\n        const binding = bindings[i];\n        /** @type {?} */\n        let boundValue;\n        switch (binding.bindingType) {\n            case 0 /* First */:\n                boundValue = queryList.first;\n                break;\n            case 1 /* All */:\n                boundValue = queryList;\n                notify = true;\n                break;\n        }\n        directiveInstance[binding.propName] = boundValue;\n    }\n    if (notify) {\n        queryList.notifyOnChanges();\n    }\n}\n/**\n * @param {?} view\n * @param {?} startIndex\n * @param {?} endIndex\n * @param {?} queryDef\n * @param {?} values\n * @return {?}\n */\nfunction calcQueryValues(view, startIndex, endIndex, queryDef, values) {\n    for (let i = startIndex; i <= endIndex; i++) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[i];\n        /** @type {?} */\n        const valueType = nodeDef.matchedQueries[queryDef.id];\n        if (valueType != null) {\n            values.push(getQueryValue(view, nodeDef, valueType));\n        }\n        if (nodeDef.flags & 1 /* TypeElement */ && (/** @type {?} */ (nodeDef.element)).template &&\n            ((/** @type {?} */ ((/** @type {?} */ (nodeDef.element)).template)).nodeMatchedQueries & queryDef.filterId) ===\n                queryDef.filterId) {\n            /** @type {?} */\n            const elementData = asElementData(view, i);\n            // check embedded views that were attached at the place of their template,\n            // but process child nodes first if some match the query (see issue #16568)\n            if ((nodeDef.childMatchedQueries & queryDef.filterId) === queryDef.filterId) {\n                calcQueryValues(view, i + 1, i + nodeDef.childCount, queryDef, values);\n                i += nodeDef.childCount;\n            }\n            if (nodeDef.flags & 16777216 /* EmbeddedViews */) {\n                /** @type {?} */\n                const embeddedViews = (/** @type {?} */ (elementData.viewContainer))._embeddedViews;\n                for (let k = 0; k < embeddedViews.length; k++) {\n                    /** @type {?} */\n                    const embeddedView = embeddedViews[k];\n                    /** @type {?} */\n                    const dvc = declaredViewContainer(embeddedView);\n                    if (dvc && dvc === elementData) {\n                        calcQueryValues(embeddedView, 0, embeddedView.def.nodes.length - 1, queryDef, values);\n                    }\n                }\n            }\n            /** @type {?} */\n            const projectedViews = elementData.template._projectedViews;\n            if (projectedViews) {\n                for (let k = 0; k < projectedViews.length; k++) {\n                    /** @type {?} */\n                    const projectedView = projectedViews[k];\n                    calcQueryValues(projectedView, 0, projectedView.def.nodes.length - 1, queryDef, values);\n                }\n            }\n        }\n        if ((nodeDef.childMatchedQueries & queryDef.filterId) !== queryDef.filterId) {\n            // if no child matches the query, skip the children.\n            i += nodeDef.childCount;\n        }\n    }\n    return values;\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} queryValueType\n * @return {?}\n */\nfunction getQueryValue(view, nodeDef, queryValueType) {\n    if (queryValueType != null) {\n        // a match\n        switch (queryValueType) {\n            case 1 /* RenderElement */:\n                return asElementData(view, nodeDef.nodeIndex).renderElement;\n            case 0 /* ElementRef */:\n                return new ElementRef(asElementData(view, nodeDef.nodeIndex).renderElement);\n            case 2 /* TemplateRef */:\n                return asElementData(view, nodeDef.nodeIndex).template;\n            case 3 /* ViewContainerRef */:\n                return asElementData(view, nodeDef.nodeIndex).viewContainer;\n            case 4 /* Provider */:\n                return asProviderData(view, nodeDef.nodeIndex).instance;\n        }\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/ng_content.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} ngContentIndex\n * @param {?} index\n * @return {?}\n */\nfunction ngContentDef(ngContentIndex, index) {\n    return {\n        // will bet set by the view definition\n        nodeIndex: -1,\n        parent: null,\n        renderParent: null,\n        bindingIndex: -1,\n        outputIndex: -1,\n        // regular values\n        checkIndex: -1,\n        flags: 8 /* TypeNgContent */,\n        childFlags: 0,\n        directChildFlags: 0,\n        childMatchedQueries: 0,\n        matchedQueries: {},\n        matchedQueryIds: 0,\n        references: {},\n        ngContentIndex,\n        childCount: 0,\n        bindings: [],\n        bindingFlags: 0,\n        outputs: [],\n        element: null,\n        provider: null,\n        text: null,\n        query: null,\n        ngContent: { index }\n    };\n}\n/**\n * @param {?} view\n * @param {?} renderHost\n * @param {?} def\n * @return {?}\n */\nfunction appendNgContent(view, renderHost, def) {\n    /** @type {?} */\n    const parentEl = getParentRenderElement(view, renderHost, def);\n    if (!parentEl) {\n        // Nothing to do if there is no parent element.\n        return;\n    }\n    /** @type {?} */\n    const ngContentIndex = (/** @type {?} */ (def.ngContent)).index;\n    visitProjectedRenderNodes(view, ngContentIndex, 1 /* AppendChild */, parentEl, null, undefined);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/pure_expression.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} checkIndex\n * @param {?} argCount\n * @return {?}\n */\nfunction purePipeDef(checkIndex, argCount) {\n    // argCount + 1 to include the pipe as first arg\n    return _pureExpressionDef(128 /* TypePurePipe */, checkIndex, newArray(argCount + 1));\n}\n/**\n * @param {?} checkIndex\n * @param {?} argCount\n * @return {?}\n */\nfunction pureArrayDef(checkIndex, argCount) {\n    return _pureExpressionDef(32 /* TypePureArray */, checkIndex, newArray(argCount));\n}\n/**\n * @param {?} checkIndex\n * @param {?} propToIndex\n * @return {?}\n */\nfunction pureObjectDef(checkIndex, propToIndex) {\n    /** @type {?} */\n    const keys = Object.keys(propToIndex);\n    /** @type {?} */\n    const nbKeys = keys.length;\n    /** @type {?} */\n    const propertyNames = [];\n    for (let i = 0; i < nbKeys; i++) {\n        /** @type {?} */\n        const key = keys[i];\n        /** @type {?} */\n        const index = propToIndex[key];\n        propertyNames.push(key);\n    }\n    return _pureExpressionDef(64 /* TypePureObject */, checkIndex, propertyNames);\n}\n/**\n * @param {?} flags\n * @param {?} checkIndex\n * @param {?} propertyNames\n * @return {?}\n */\nfunction _pureExpressionDef(flags, checkIndex, propertyNames) {\n    /** @type {?} */\n    const bindings = [];\n    for (let i = 0; i < propertyNames.length; i++) {\n        /** @type {?} */\n        const prop = propertyNames[i];\n        bindings.push({\n            flags: 8 /* TypeProperty */,\n            name: prop,\n            ns: null,\n            nonMinifiedName: prop,\n            securityContext: null,\n            suffix: null\n        });\n    }\n    return {\n        // will bet set by the view definition\n        nodeIndex: -1,\n        parent: null,\n        renderParent: null,\n        bindingIndex: -1,\n        outputIndex: -1,\n        // regular values\n        checkIndex,\n        flags,\n        childFlags: 0,\n        directChildFlags: 0,\n        childMatchedQueries: 0,\n        matchedQueries: {},\n        matchedQueryIds: 0,\n        references: {},\n        ngContentIndex: -1,\n        childCount: 0,\n        bindings,\n        bindingFlags: calcBindingFlags(bindings),\n        outputs: [],\n        element: null,\n        provider: null,\n        text: null,\n        query: null,\n        ngContent: null\n    };\n}\n/**\n * @param {?} view\n * @param {?} def\n * @return {?}\n */\nfunction createPureExpression(view, def) {\n    return { value: undefined };\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} v0\n * @param {?} v1\n * @param {?} v2\n * @param {?} v3\n * @param {?} v4\n * @param {?} v5\n * @param {?} v6\n * @param {?} v7\n * @param {?} v8\n * @param {?} v9\n * @return {?}\n */\nfunction checkAndUpdatePureExpressionInline(view, def, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    /** @type {?} */\n    const bindings = def.bindings;\n    /** @type {?} */\n    let changed = false;\n    /** @type {?} */\n    const bindLen = bindings.length;\n    if (bindLen > 0 && checkAndUpdateBinding(view, def, 0, v0))\n        changed = true;\n    if (bindLen > 1 && checkAndUpdateBinding(view, def, 1, v1))\n        changed = true;\n    if (bindLen > 2 && checkAndUpdateBinding(view, def, 2, v2))\n        changed = true;\n    if (bindLen > 3 && checkAndUpdateBinding(view, def, 3, v3))\n        changed = true;\n    if (bindLen > 4 && checkAndUpdateBinding(view, def, 4, v4))\n        changed = true;\n    if (bindLen > 5 && checkAndUpdateBinding(view, def, 5, v5))\n        changed = true;\n    if (bindLen > 6 && checkAndUpdateBinding(view, def, 6, v6))\n        changed = true;\n    if (bindLen > 7 && checkAndUpdateBinding(view, def, 7, v7))\n        changed = true;\n    if (bindLen > 8 && checkAndUpdateBinding(view, def, 8, v8))\n        changed = true;\n    if (bindLen > 9 && checkAndUpdateBinding(view, def, 9, v9))\n        changed = true;\n    if (changed) {\n        /** @type {?} */\n        const data = asPureExpressionData(view, def.nodeIndex);\n        /** @type {?} */\n        let value;\n        switch (def.flags & 201347067 /* Types */) {\n            case 32 /* TypePureArray */:\n                value = [];\n                if (bindLen > 0)\n                    value.push(v0);\n                if (bindLen > 1)\n                    value.push(v1);\n                if (bindLen > 2)\n                    value.push(v2);\n                if (bindLen > 3)\n                    value.push(v3);\n                if (bindLen > 4)\n                    value.push(v4);\n                if (bindLen > 5)\n                    value.push(v5);\n                if (bindLen > 6)\n                    value.push(v6);\n                if (bindLen > 7)\n                    value.push(v7);\n                if (bindLen > 8)\n                    value.push(v8);\n                if (bindLen > 9)\n                    value.push(v9);\n                break;\n            case 64 /* TypePureObject */:\n                value = {};\n                if (bindLen > 0)\n                    value[(/** @type {?} */ (bindings[0].name))] = v0;\n                if (bindLen > 1)\n                    value[(/** @type {?} */ (bindings[1].name))] = v1;\n                if (bindLen > 2)\n                    value[(/** @type {?} */ (bindings[2].name))] = v2;\n                if (bindLen > 3)\n                    value[(/** @type {?} */ (bindings[3].name))] = v3;\n                if (bindLen > 4)\n                    value[(/** @type {?} */ (bindings[4].name))] = v4;\n                if (bindLen > 5)\n                    value[(/** @type {?} */ (bindings[5].name))] = v5;\n                if (bindLen > 6)\n                    value[(/** @type {?} */ (bindings[6].name))] = v6;\n                if (bindLen > 7)\n                    value[(/** @type {?} */ (bindings[7].name))] = v7;\n                if (bindLen > 8)\n                    value[(/** @type {?} */ (bindings[8].name))] = v8;\n                if (bindLen > 9)\n                    value[(/** @type {?} */ (bindings[9].name))] = v9;\n                break;\n            case 128 /* TypePurePipe */:\n                /** @type {?} */\n                const pipe = v0;\n                switch (bindLen) {\n                    case 1:\n                        value = pipe.transform(v0);\n                        break;\n                    case 2:\n                        value = pipe.transform(v1);\n                        break;\n                    case 3:\n                        value = pipe.transform(v1, v2);\n                        break;\n                    case 4:\n                        value = pipe.transform(v1, v2, v3);\n                        break;\n                    case 5:\n                        value = pipe.transform(v1, v2, v3, v4);\n                        break;\n                    case 6:\n                        value = pipe.transform(v1, v2, v3, v4, v5);\n                        break;\n                    case 7:\n                        value = pipe.transform(v1, v2, v3, v4, v5, v6);\n                        break;\n                    case 8:\n                        value = pipe.transform(v1, v2, v3, v4, v5, v6, v7);\n                        break;\n                    case 9:\n                        value = pipe.transform(v1, v2, v3, v4, v5, v6, v7, v8);\n                        break;\n                    case 10:\n                        value = pipe.transform(v1, v2, v3, v4, v5, v6, v7, v8, v9);\n                        break;\n                }\n                break;\n        }\n        data.value = value;\n    }\n    return changed;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} values\n * @return {?}\n */\nfunction checkAndUpdatePureExpressionDynamic(view, def, values) {\n    /** @type {?} */\n    const bindings = def.bindings;\n    /** @type {?} */\n    let changed = false;\n    for (let i = 0; i < values.length; i++) {\n        // Note: We need to loop over all values, so that\n        // the old values are updates as well!\n        if (checkAndUpdateBinding(view, def, i, values[i])) {\n            changed = true;\n        }\n    }\n    if (changed) {\n        /** @type {?} */\n        const data = asPureExpressionData(view, def.nodeIndex);\n        /** @type {?} */\n        let value;\n        switch (def.flags & 201347067 /* Types */) {\n            case 32 /* TypePureArray */:\n                value = values;\n                break;\n            case 64 /* TypePureObject */:\n                value = {};\n                for (let i = 0; i < values.length; i++) {\n                    value[(/** @type {?} */ (bindings[i].name))] = values[i];\n                }\n                break;\n            case 128 /* TypePurePipe */:\n                /** @type {?} */\n                const pipe = values[0];\n                /** @type {?} */\n                const params = values.slice(1);\n                value = ((/** @type {?} */ (pipe.transform)))(...params);\n                break;\n        }\n        data.value = value;\n    }\n    return changed;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/text.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} checkIndex\n * @param {?} ngContentIndex\n * @param {?} staticText\n * @return {?}\n */\nfunction textDef(checkIndex, ngContentIndex, staticText) {\n    /** @type {?} */\n    const bindings = [];\n    for (let i = 1; i < staticText.length; i++) {\n        bindings[i - 1] = {\n            flags: 8 /* TypeProperty */,\n            name: null,\n            ns: null,\n            nonMinifiedName: null,\n            securityContext: null,\n            suffix: staticText[i],\n        };\n    }\n    return {\n        // will bet set by the view definition\n        nodeIndex: -1,\n        parent: null,\n        renderParent: null,\n        bindingIndex: -1,\n        outputIndex: -1,\n        // regular values\n        checkIndex,\n        flags: 2 /* TypeText */,\n        childFlags: 0,\n        directChildFlags: 0,\n        childMatchedQueries: 0,\n        matchedQueries: {},\n        matchedQueryIds: 0,\n        references: {},\n        ngContentIndex,\n        childCount: 0,\n        bindings,\n        bindingFlags: 8 /* TypeProperty */,\n        outputs: [],\n        element: null,\n        provider: null,\n        text: { prefix: staticText[0] },\n        query: null,\n        ngContent: null,\n    };\n}\n/**\n * @param {?} view\n * @param {?} renderHost\n * @param {?} def\n * @return {?}\n */\nfunction createText(view, renderHost, def) {\n    /** @type {?} */\n    let renderNode;\n    /** @type {?} */\n    const renderer = view.renderer;\n    renderNode = renderer.createText((/** @type {?} */ (def.text)).prefix);\n    /** @type {?} */\n    const parentEl = getParentRenderElement(view, renderHost, def);\n    if (parentEl) {\n        renderer.appendChild(parentEl, renderNode);\n    }\n    return { renderText: renderNode };\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} v0\n * @param {?} v1\n * @param {?} v2\n * @param {?} v3\n * @param {?} v4\n * @param {?} v5\n * @param {?} v6\n * @param {?} v7\n * @param {?} v8\n * @param {?} v9\n * @return {?}\n */\nfunction checkAndUpdateTextInline(view, def, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    /** @type {?} */\n    let changed = false;\n    /** @type {?} */\n    const bindings = def.bindings;\n    /** @type {?} */\n    const bindLen = bindings.length;\n    if (bindLen > 0 && checkAndUpdateBinding(view, def, 0, v0))\n        changed = true;\n    if (bindLen > 1 && checkAndUpdateBinding(view, def, 1, v1))\n        changed = true;\n    if (bindLen > 2 && checkAndUpdateBinding(view, def, 2, v2))\n        changed = true;\n    if (bindLen > 3 && checkAndUpdateBinding(view, def, 3, v3))\n        changed = true;\n    if (bindLen > 4 && checkAndUpdateBinding(view, def, 4, v4))\n        changed = true;\n    if (bindLen > 5 && checkAndUpdateBinding(view, def, 5, v5))\n        changed = true;\n    if (bindLen > 6 && checkAndUpdateBinding(view, def, 6, v6))\n        changed = true;\n    if (bindLen > 7 && checkAndUpdateBinding(view, def, 7, v7))\n        changed = true;\n    if (bindLen > 8 && checkAndUpdateBinding(view, def, 8, v8))\n        changed = true;\n    if (bindLen > 9 && checkAndUpdateBinding(view, def, 9, v9))\n        changed = true;\n    if (changed) {\n        /** @type {?} */\n        let value = (/** @type {?} */ (def.text)).prefix;\n        if (bindLen > 0)\n            value += _addInterpolationPart(v0, bindings[0]);\n        if (bindLen > 1)\n            value += _addInterpolationPart(v1, bindings[1]);\n        if (bindLen > 2)\n            value += _addInterpolationPart(v2, bindings[2]);\n        if (bindLen > 3)\n            value += _addInterpolationPart(v3, bindings[3]);\n        if (bindLen > 4)\n            value += _addInterpolationPart(v4, bindings[4]);\n        if (bindLen > 5)\n            value += _addInterpolationPart(v5, bindings[5]);\n        if (bindLen > 6)\n            value += _addInterpolationPart(v6, bindings[6]);\n        if (bindLen > 7)\n            value += _addInterpolationPart(v7, bindings[7]);\n        if (bindLen > 8)\n            value += _addInterpolationPart(v8, bindings[8]);\n        if (bindLen > 9)\n            value += _addInterpolationPart(v9, bindings[9]);\n        /** @type {?} */\n        const renderNode = asTextData(view, def.nodeIndex).renderText;\n        view.renderer.setValue(renderNode, value);\n    }\n    return changed;\n}\n/**\n * @param {?} view\n * @param {?} def\n * @param {?} values\n * @return {?}\n */\nfunction checkAndUpdateTextDynamic(view, def, values) {\n    /** @type {?} */\n    const bindings = def.bindings;\n    /** @type {?} */\n    let changed = false;\n    for (let i = 0; i < values.length; i++) {\n        // Note: We need to loop over all values, so that\n        // the old values are updates as well!\n        if (checkAndUpdateBinding(view, def, i, values[i])) {\n            changed = true;\n        }\n    }\n    if (changed) {\n        /** @type {?} */\n        let value = '';\n        for (let i = 0; i < values.length; i++) {\n            value = value + _addInterpolationPart(values[i], bindings[i]);\n        }\n        value = (/** @type {?} */ (def.text)).prefix + value;\n        /** @type {?} */\n        const renderNode = asTextData(view, def.nodeIndex).renderText;\n        view.renderer.setValue(renderNode, value);\n    }\n    return changed;\n}\n/**\n * @param {?} value\n * @param {?} binding\n * @return {?}\n */\nfunction _addInterpolationPart(value, binding) {\n    /** @type {?} */\n    const valueStr = value != null ? value.toString() : '';\n    return valueStr + binding.suffix;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/view.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} flags\n * @param {?} nodes\n * @param {?=} updateDirectives\n * @param {?=} updateRenderer\n * @return {?}\n */\nfunction viewDef(flags, nodes, updateDirectives, updateRenderer) {\n    // clone nodes and set auto calculated values\n    /** @type {?} */\n    let viewBindingCount = 0;\n    /** @type {?} */\n    let viewDisposableCount = 0;\n    /** @type {?} */\n    let viewNodeFlags = 0;\n    /** @type {?} */\n    let viewRootNodeFlags = 0;\n    /** @type {?} */\n    let viewMatchedQueries = 0;\n    /** @type {?} */\n    let currentParent = null;\n    /** @type {?} */\n    let currentRenderParent = null;\n    /** @type {?} */\n    let currentElementHasPublicProviders = false;\n    /** @type {?} */\n    let currentElementHasPrivateProviders = false;\n    /** @type {?} */\n    let lastRenderRootNode = null;\n    for (let i = 0; i < nodes.length; i++) {\n        /** @type {?} */\n        const node = nodes[i];\n        node.nodeIndex = i;\n        node.parent = currentParent;\n        node.bindingIndex = viewBindingCount;\n        node.outputIndex = viewDisposableCount;\n        node.renderParent = currentRenderParent;\n        viewNodeFlags |= node.flags;\n        viewMatchedQueries |= node.matchedQueryIds;\n        if (node.element) {\n            /** @type {?} */\n            const elDef = node.element;\n            elDef.publicProviders =\n                currentParent ? (/** @type {?} */ (currentParent.element)).publicProviders : Object.create(null);\n            elDef.allProviders = elDef.publicProviders;\n            // Note: We assume that all providers of an element are before any child element!\n            currentElementHasPublicProviders = false;\n            currentElementHasPrivateProviders = false;\n            if (node.element.template) {\n                viewMatchedQueries |= node.element.template.nodeMatchedQueries;\n            }\n        }\n        validateNode(currentParent, node, nodes.length);\n        viewBindingCount += node.bindings.length;\n        viewDisposableCount += node.outputs.length;\n        if (!currentRenderParent && (node.flags & 3 /* CatRenderNode */)) {\n            lastRenderRootNode = node;\n        }\n        if (node.flags & 20224 /* CatProvider */) {\n            if (!currentElementHasPublicProviders) {\n                currentElementHasPublicProviders = true;\n                // Use prototypical inheritance to not get O(n^2) complexity...\n                (/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).publicProviders =\n                    Object.create((/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).publicProviders);\n                (/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).allProviders = (/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).publicProviders;\n            }\n            /** @type {?} */\n            const isPrivateService = (node.flags & 8192 /* PrivateProvider */) !== 0;\n            /** @type {?} */\n            const isComponent = (node.flags & 32768 /* Component */) !== 0;\n            if (!isPrivateService || isComponent) {\n                (/** @type {?} */ ((/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).publicProviders))[tokenKey((/** @type {?} */ (node.provider)).token)] = node;\n            }\n            else {\n                if (!currentElementHasPrivateProviders) {\n                    currentElementHasPrivateProviders = true;\n                    // Use prototypical inheritance to not get O(n^2) complexity...\n                    (/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).allProviders =\n                        Object.create((/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).publicProviders);\n                }\n                (/** @type {?} */ ((/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).allProviders))[tokenKey((/** @type {?} */ (node.provider)).token)] = node;\n            }\n            if (isComponent) {\n                (/** @type {?} */ ((/** @type {?} */ (currentParent)).element)).componentProvider = node;\n            }\n        }\n        if (currentParent) {\n            currentParent.childFlags |= node.flags;\n            currentParent.directChildFlags |= node.flags;\n            currentParent.childMatchedQueries |= node.matchedQueryIds;\n            if (node.element && node.element.template) {\n                currentParent.childMatchedQueries |= node.element.template.nodeMatchedQueries;\n            }\n        }\n        else {\n            viewRootNodeFlags |= node.flags;\n        }\n        if (node.childCount > 0) {\n            currentParent = node;\n            if (!isNgContainer(node)) {\n                currentRenderParent = node;\n            }\n        }\n        else {\n            // When the current node has no children, check if it is the last children of its parent.\n            // When it is, propagate the flags up.\n            // The loop is required because an element could be the last transitive children of several\n            // elements. We loop to either the root or the highest opened element (= with remaining\n            // children)\n            while (currentParent && i === currentParent.nodeIndex + currentParent.childCount) {\n                /** @type {?} */\n                const newParent = currentParent.parent;\n                if (newParent) {\n                    newParent.childFlags |= currentParent.childFlags;\n                    newParent.childMatchedQueries |= currentParent.childMatchedQueries;\n                }\n                currentParent = newParent;\n                // We also need to update the render parent & account for ng-container\n                if (currentParent && isNgContainer(currentParent)) {\n                    currentRenderParent = currentParent.renderParent;\n                }\n                else {\n                    currentRenderParent = currentParent;\n                }\n            }\n        }\n    }\n    /** @type {?} */\n    const handleEvent = (/**\n     * @param {?} view\n     * @param {?} nodeIndex\n     * @param {?} eventName\n     * @param {?} event\n     * @return {?}\n     */\n    (view, nodeIndex, eventName, event) => (/** @type {?} */ ((/** @type {?} */ (nodes[nodeIndex].element)).handleEvent))(view, eventName, event));\n    return {\n        // Will be filled later...\n        factory: null,\n        nodeFlags: viewNodeFlags,\n        rootNodeFlags: viewRootNodeFlags,\n        nodeMatchedQueries: viewMatchedQueries,\n        flags,\n        nodes: nodes,\n        updateDirectives: updateDirectives || NOOP,\n        updateRenderer: updateRenderer || NOOP,\n        handleEvent,\n        bindingCount: viewBindingCount,\n        outputCount: viewDisposableCount,\n        lastRenderRootNode\n    };\n}\n/**\n * @param {?} node\n * @return {?}\n */\nfunction isNgContainer(node) {\n    return (node.flags & 1 /* TypeElement */) !== 0 && (/** @type {?} */ (node.element)).name === null;\n}\n/**\n * @param {?} parent\n * @param {?} node\n * @param {?} nodeCount\n * @return {?}\n */\nfunction validateNode(parent, node, nodeCount) {\n    /** @type {?} */\n    const template = node.element && node.element.template;\n    if (template) {\n        if (!template.lastRenderRootNode) {\n            throw new Error(`Illegal State: Embedded templates without nodes are not allowed!`);\n        }\n        if (template.lastRenderRootNode &&\n            template.lastRenderRootNode.flags & 16777216 /* EmbeddedViews */) {\n            throw new Error(`Illegal State: Last root node of a template can't have embedded views, at index ${node.nodeIndex}!`);\n        }\n    }\n    if (node.flags & 20224 /* CatProvider */) {\n        /** @type {?} */\n        const parentFlags = parent ? parent.flags : 0;\n        if ((parentFlags & 1 /* TypeElement */) === 0) {\n            throw new Error(`Illegal State: StaticProvider/Directive nodes need to be children of elements or anchors, at index ${node.nodeIndex}!`);\n        }\n    }\n    if (node.query) {\n        if (node.flags & 67108864 /* TypeContentQuery */ &&\n            (!parent || (parent.flags & 16384 /* TypeDirective */) === 0)) {\n            throw new Error(`Illegal State: Content Query nodes need to be children of directives, at index ${node.nodeIndex}!`);\n        }\n        if (node.flags & 134217728 /* TypeViewQuery */ && parent) {\n            throw new Error(`Illegal State: View Query nodes have to be top level nodes, at index ${node.nodeIndex}!`);\n        }\n    }\n    if (node.childCount) {\n        /** @type {?} */\n        const parentEnd = parent ? parent.nodeIndex + parent.childCount : nodeCount - 1;\n        if (node.nodeIndex <= parentEnd && node.nodeIndex + node.childCount > parentEnd) {\n            throw new Error(`Illegal State: childCount of node leads outside of parent, at index ${node.nodeIndex}!`);\n        }\n    }\n}\n/**\n * @param {?} parent\n * @param {?} anchorDef\n * @param {?} viewDef\n * @param {?=} context\n * @return {?}\n */\nfunction createEmbeddedView(parent, anchorDef, viewDef, context) {\n    // embedded views are seen as siblings to the anchor, so we need\n    // to get the parent of the anchor and use it as parentIndex.\n    /** @type {?} */\n    const view = createView(parent.root, parent.renderer, parent, anchorDef, viewDef);\n    initView(view, parent.component, context);\n    createViewNodes(view);\n    return view;\n}\n/**\n * @param {?} root\n * @param {?} def\n * @param {?=} context\n * @return {?}\n */\nfunction createRootView(root, def, context) {\n    /** @type {?} */\n    const view = createView(root, root.renderer, null, null, def);\n    initView(view, context, context);\n    createViewNodes(view);\n    return view;\n}\n/**\n * @param {?} parentView\n * @param {?} nodeDef\n * @param {?} viewDef\n * @param {?} hostElement\n * @return {?}\n */\nfunction createComponentView(parentView, nodeDef, viewDef, hostElement) {\n    /** @type {?} */\n    const rendererType = (/** @type {?} */ (nodeDef.element)).componentRendererType;\n    /** @type {?} */\n    let compRenderer;\n    if (!rendererType) {\n        compRenderer = parentView.root.renderer;\n    }\n    else {\n        compRenderer = parentView.root.rendererFactory.createRenderer(hostElement, rendererType);\n    }\n    return createView(parentView.root, compRenderer, parentView, (/** @type {?} */ (nodeDef.element)).componentProvider, viewDef);\n}\n/**\n * @param {?} root\n * @param {?} renderer\n * @param {?} parent\n * @param {?} parentNodeDef\n * @param {?} def\n * @return {?}\n */\nfunction createView(root, renderer, parent, parentNodeDef, def) {\n    /** @type {?} */\n    const nodes = new Array(def.nodes.length);\n    /** @type {?} */\n    const disposables = def.outputCount ? new Array(def.outputCount) : null;\n    /** @type {?} */\n    const view = {\n        def,\n        parent,\n        viewContainerParent: null,\n        parentNodeDef,\n        context: null,\n        component: null,\n        nodes,\n        state: 13 /* CatInit */,\n        root,\n        renderer,\n        oldValues: new Array(def.bindingCount),\n        disposables,\n        initIndex: -1\n    };\n    return view;\n}\n/**\n * @param {?} view\n * @param {?} component\n * @param {?} context\n * @return {?}\n */\nfunction initView(view, component, context) {\n    view.component = component;\n    view.context = context;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction createViewNodes(view) {\n    /** @type {?} */\n    let renderHost;\n    if (isComponentView(view)) {\n        /** @type {?} */\n        const hostDef = view.parentNodeDef;\n        renderHost = asElementData((/** @type {?} */ (view.parent)), (/** @type {?} */ ((/** @type {?} */ (hostDef)).parent)).nodeIndex).renderElement;\n    }\n    /** @type {?} */\n    const def = view.def;\n    /** @type {?} */\n    const nodes = view.nodes;\n    for (let i = 0; i < def.nodes.length; i++) {\n        /** @type {?} */\n        const nodeDef = def.nodes[i];\n        Services.setCurrentNode(view, i);\n        /** @type {?} */\n        let nodeData;\n        switch (nodeDef.flags & 201347067 /* Types */) {\n            case 1 /* TypeElement */:\n                /** @type {?} */\n                const el = (/** @type {?} */ (createElement(view, renderHost, nodeDef)));\n                /** @type {?} */\n                let componentView = (/** @type {?} */ (undefined));\n                if (nodeDef.flags & 33554432 /* ComponentView */) {\n                    /** @type {?} */\n                    const compViewDef = resolveDefinition((/** @type {?} */ ((/** @type {?} */ (nodeDef.element)).componentView)));\n                    componentView = Services.createComponentView(view, nodeDef, compViewDef, el);\n                }\n                listenToElementOutputs(view, componentView, nodeDef, el);\n                nodeData = (/** @type {?} */ ({\n                    renderElement: el,\n                    componentView,\n                    viewContainer: null,\n                    template: (/** @type {?} */ (nodeDef.element)).template ? createTemplateData(view, nodeDef) : undefined\n                }));\n                if (nodeDef.flags & 16777216 /* EmbeddedViews */) {\n                    nodeData.viewContainer = createViewContainerData(view, nodeDef, nodeData);\n                }\n                break;\n            case 2 /* TypeText */:\n                nodeData = (/** @type {?} */ (createText(view, renderHost, nodeDef)));\n                break;\n            case 512 /* TypeClassProvider */:\n            case 1024 /* TypeFactoryProvider */:\n            case 2048 /* TypeUseExistingProvider */:\n            case 256 /* TypeValueProvider */: {\n                nodeData = nodes[i];\n                if (!nodeData && !(nodeDef.flags & 4096 /* LazyProvider */)) {\n                    /** @type {?} */\n                    const instance = createProviderInstance(view, nodeDef);\n                    nodeData = (/** @type {?} */ ({ instance }));\n                }\n                break;\n            }\n            case 16 /* TypePipe */: {\n                /** @type {?} */\n                const instance = createPipeInstance(view, nodeDef);\n                nodeData = (/** @type {?} */ ({ instance }));\n                break;\n            }\n            case 16384 /* TypeDirective */: {\n                nodeData = nodes[i];\n                if (!nodeData) {\n                    /** @type {?} */\n                    const instance = createDirectiveInstance(view, nodeDef);\n                    nodeData = (/** @type {?} */ ({ instance }));\n                }\n                if (nodeDef.flags & 32768 /* Component */) {\n                    /** @type {?} */\n                    const compView = asElementData(view, (/** @type {?} */ (nodeDef.parent)).nodeIndex).componentView;\n                    initView(compView, nodeData.instance, nodeData.instance);\n                }\n                break;\n            }\n            case 32 /* TypePureArray */:\n            case 64 /* TypePureObject */:\n            case 128 /* TypePurePipe */:\n                nodeData = (/** @type {?} */ (createPureExpression(view, nodeDef)));\n                break;\n            case 67108864 /* TypeContentQuery */:\n            case 134217728 /* TypeViewQuery */:\n                nodeData = (/** @type {?} */ (createQuery()));\n                break;\n            case 8 /* TypeNgContent */:\n                appendNgContent(view, renderHost, nodeDef);\n                // no runtime data needed for NgContent...\n                nodeData = undefined;\n                break;\n        }\n        nodes[i] = nodeData;\n    }\n    // Create the ViewData.nodes of component views after we created everything else,\n    // so that e.g. ng-content works\n    execComponentViewsAction(view, ViewAction.CreateViewNodes);\n    // fill static content and view queries\n    execQueriesAction(view, 67108864 /* TypeContentQuery */ | 134217728 /* TypeViewQuery */, 268435456 /* StaticQuery */, 0 /* CheckAndUpdate */);\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction checkNoChangesView(view) {\n    markProjectedViewsForCheck(view);\n    Services.updateDirectives(view, 1 /* CheckNoChanges */);\n    execEmbeddedViewsAction(view, ViewAction.CheckNoChanges);\n    Services.updateRenderer(view, 1 /* CheckNoChanges */);\n    execComponentViewsAction(view, ViewAction.CheckNoChanges);\n    // Note: We don't check queries for changes as we didn't do this in v2.x.\n    // TODO(tbosch): investigate if we can enable the check again in v5.x with a nicer error message.\n    view.state &= ~(64 /* CheckProjectedViews */ | 32 /* CheckProjectedView */);\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction checkAndUpdateView(view) {\n    if (view.state & 1 /* BeforeFirstCheck */) {\n        view.state &= ~1 /* BeforeFirstCheck */;\n        view.state |= 2 /* FirstCheck */;\n    }\n    else {\n        view.state &= ~2 /* FirstCheck */;\n    }\n    shiftInitState(view, 0 /* InitState_BeforeInit */, 256 /* InitState_CallingOnInit */);\n    markProjectedViewsForCheck(view);\n    Services.updateDirectives(view, 0 /* CheckAndUpdate */);\n    execEmbeddedViewsAction(view, ViewAction.CheckAndUpdate);\n    execQueriesAction(view, 67108864 /* TypeContentQuery */, 536870912 /* DynamicQuery */, 0 /* CheckAndUpdate */);\n    /** @type {?} */\n    let callInit = shiftInitState(view, 256 /* InitState_CallingOnInit */, 512 /* InitState_CallingAfterContentInit */);\n    callLifecycleHooksChildrenFirst(view, 2097152 /* AfterContentChecked */ | (callInit ? 1048576 /* AfterContentInit */ : 0));\n    Services.updateRenderer(view, 0 /* CheckAndUpdate */);\n    execComponentViewsAction(view, ViewAction.CheckAndUpdate);\n    execQueriesAction(view, 134217728 /* TypeViewQuery */, 536870912 /* DynamicQuery */, 0 /* CheckAndUpdate */);\n    callInit = shiftInitState(view, 512 /* InitState_CallingAfterContentInit */, 768 /* InitState_CallingAfterViewInit */);\n    callLifecycleHooksChildrenFirst(view, 8388608 /* AfterViewChecked */ | (callInit ? 4194304 /* AfterViewInit */ : 0));\n    if (view.def.flags & 2 /* OnPush */) {\n        view.state &= ~8 /* ChecksEnabled */;\n    }\n    view.state &= ~(64 /* CheckProjectedViews */ | 32 /* CheckProjectedView */);\n    shiftInitState(view, 768 /* InitState_CallingAfterViewInit */, 1024 /* InitState_AfterInit */);\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} argStyle\n * @param {?=} v0\n * @param {?=} v1\n * @param {?=} v2\n * @param {?=} v3\n * @param {?=} v4\n * @param {?=} v5\n * @param {?=} v6\n * @param {?=} v7\n * @param {?=} v8\n * @param {?=} v9\n * @return {?}\n */\nfunction checkAndUpdateNode(view, nodeDef, argStyle, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    if (argStyle === 0 /* Inline */) {\n        return checkAndUpdateNodeInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n    }\n    else {\n        return checkAndUpdateNodeDynamic(view, nodeDef, v0);\n    }\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction markProjectedViewsForCheck(view) {\n    /** @type {?} */\n    const def = view.def;\n    if (!(def.nodeFlags & 4 /* ProjectedTemplate */)) {\n        return;\n    }\n    for (let i = 0; i < def.nodes.length; i++) {\n        /** @type {?} */\n        const nodeDef = def.nodes[i];\n        if (nodeDef.flags & 4 /* ProjectedTemplate */) {\n            /** @type {?} */\n            const projectedViews = asElementData(view, i).template._projectedViews;\n            if (projectedViews) {\n                for (let i = 0; i < projectedViews.length; i++) {\n                    /** @type {?} */\n                    const projectedView = projectedViews[i];\n                    projectedView.state |= 32 /* CheckProjectedView */;\n                    markParentViewsForCheckProjectedViews(projectedView, view);\n                }\n            }\n        }\n        else if ((nodeDef.childFlags & 4 /* ProjectedTemplate */) === 0) {\n            // a parent with leafs\n            // no child is a component,\n            // then skip the children\n            i += nodeDef.childCount;\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?=} v0\n * @param {?=} v1\n * @param {?=} v2\n * @param {?=} v3\n * @param {?=} v4\n * @param {?=} v5\n * @param {?=} v6\n * @param {?=} v7\n * @param {?=} v8\n * @param {?=} v9\n * @return {?}\n */\nfunction checkAndUpdateNodeInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    switch (nodeDef.flags & 201347067 /* Types */) {\n        case 1 /* TypeElement */:\n            return checkAndUpdateElementInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n        case 2 /* TypeText */:\n            return checkAndUpdateTextInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n        case 16384 /* TypeDirective */:\n            return checkAndUpdateDirectiveInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n        case 32 /* TypePureArray */:\n        case 64 /* TypePureObject */:\n        case 128 /* TypePurePipe */:\n            return checkAndUpdatePureExpressionInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n        default:\n            throw 'unreachable';\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} values\n * @return {?}\n */\nfunction checkAndUpdateNodeDynamic(view, nodeDef, values) {\n    switch (nodeDef.flags & 201347067 /* Types */) {\n        case 1 /* TypeElement */:\n            return checkAndUpdateElementDynamic(view, nodeDef, values);\n        case 2 /* TypeText */:\n            return checkAndUpdateTextDynamic(view, nodeDef, values);\n        case 16384 /* TypeDirective */:\n            return checkAndUpdateDirectiveDynamic(view, nodeDef, values);\n        case 32 /* TypePureArray */:\n        case 64 /* TypePureObject */:\n        case 128 /* TypePurePipe */:\n            return checkAndUpdatePureExpressionDynamic(view, nodeDef, values);\n        default:\n            throw 'unreachable';\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} argStyle\n * @param {?=} v0\n * @param {?=} v1\n * @param {?=} v2\n * @param {?=} v3\n * @param {?=} v4\n * @param {?=} v5\n * @param {?=} v6\n * @param {?=} v7\n * @param {?=} v8\n * @param {?=} v9\n * @return {?}\n */\nfunction checkNoChangesNode(view, nodeDef, argStyle, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    if (argStyle === 0 /* Inline */) {\n        checkNoChangesNodeInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n    }\n    else {\n        checkNoChangesNodeDynamic(view, nodeDef, v0);\n    }\n    // Returning false is ok here as we would have thrown in case of a change.\n    return false;\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} v0\n * @param {?} v1\n * @param {?} v2\n * @param {?} v3\n * @param {?} v4\n * @param {?} v5\n * @param {?} v6\n * @param {?} v7\n * @param {?} v8\n * @param {?} v9\n * @return {?}\n */\nfunction checkNoChangesNodeInline(view, nodeDef, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    /** @type {?} */\n    const bindLen = nodeDef.bindings.length;\n    if (bindLen > 0)\n        checkBindingNoChanges(view, nodeDef, 0, v0);\n    if (bindLen > 1)\n        checkBindingNoChanges(view, nodeDef, 1, v1);\n    if (bindLen > 2)\n        checkBindingNoChanges(view, nodeDef, 2, v2);\n    if (bindLen > 3)\n        checkBindingNoChanges(view, nodeDef, 3, v3);\n    if (bindLen > 4)\n        checkBindingNoChanges(view, nodeDef, 4, v4);\n    if (bindLen > 5)\n        checkBindingNoChanges(view, nodeDef, 5, v5);\n    if (bindLen > 6)\n        checkBindingNoChanges(view, nodeDef, 6, v6);\n    if (bindLen > 7)\n        checkBindingNoChanges(view, nodeDef, 7, v7);\n    if (bindLen > 8)\n        checkBindingNoChanges(view, nodeDef, 8, v8);\n    if (bindLen > 9)\n        checkBindingNoChanges(view, nodeDef, 9, v9);\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} values\n * @return {?}\n */\nfunction checkNoChangesNodeDynamic(view, nodeDef, values) {\n    for (let i = 0; i < values.length; i++) {\n        checkBindingNoChanges(view, nodeDef, i, values[i]);\n    }\n}\n/**\n * Workaround https://github.com/angular/tsickle/issues/497\n * @suppress {misplacedTypeAnnotation}\n * @param {?} view\n * @param {?} nodeDef\n * @return {?}\n */\nfunction checkNoChangesQuery(view, nodeDef) {\n    /** @type {?} */\n    const queryList = asQueryList(view, nodeDef.nodeIndex);\n    if (queryList.dirty) {\n        throw expressionChangedAfterItHasBeenCheckedError(Services.createDebugContext(view, nodeDef.nodeIndex), `Query ${(/** @type {?} */ (nodeDef.query)).id} not dirty`, `Query ${(/** @type {?} */ (nodeDef.query)).id} dirty`, (view.state & 1 /* BeforeFirstCheck */) !== 0);\n    }\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction destroyView(view) {\n    if (view.state & 128 /* Destroyed */) {\n        return;\n    }\n    execEmbeddedViewsAction(view, ViewAction.Destroy);\n    execComponentViewsAction(view, ViewAction.Destroy);\n    callLifecycleHooksChildrenFirst(view, 131072 /* OnDestroy */);\n    if (view.disposables) {\n        for (let i = 0; i < view.disposables.length; i++) {\n            view.disposables[i]();\n        }\n    }\n    detachProjectedView(view);\n    if (view.renderer.destroyNode) {\n        destroyViewNodes(view);\n    }\n    if (isComponentView(view)) {\n        view.renderer.destroy();\n    }\n    view.state |= 128 /* Destroyed */;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction destroyViewNodes(view) {\n    /** @type {?} */\n    const len = view.def.nodes.length;\n    for (let i = 0; i < len; i++) {\n        /** @type {?} */\n        const def = view.def.nodes[i];\n        if (def.flags & 1 /* TypeElement */) {\n            (/** @type {?} */ (view.renderer.destroyNode))(asElementData(view, i).renderElement);\n        }\n        else if (def.flags & 2 /* TypeText */) {\n            (/** @type {?} */ (view.renderer.destroyNode))(asTextData(view, i).renderText);\n        }\n        else if (def.flags & 67108864 /* TypeContentQuery */ || def.flags & 134217728 /* TypeViewQuery */) {\n            asQueryList(view, i).destroy();\n        }\n    }\n}\n/** @enum {number} */\nconst ViewAction = {\n    CreateViewNodes: 0,\n    CheckNoChanges: 1,\n    CheckNoChangesProjectedViews: 2,\n    CheckAndUpdate: 3,\n    CheckAndUpdateProjectedViews: 4,\n    Destroy: 5,\n};\nViewAction[ViewAction.CreateViewNodes] = 'CreateViewNodes';\nViewAction[ViewAction.CheckNoChanges] = 'CheckNoChanges';\nViewAction[ViewAction.CheckNoChangesProjectedViews] = 'CheckNoChangesProjectedViews';\nViewAction[ViewAction.CheckAndUpdate] = 'CheckAndUpdate';\nViewAction[ViewAction.CheckAndUpdateProjectedViews] = 'CheckAndUpdateProjectedViews';\nViewAction[ViewAction.Destroy] = 'Destroy';\n/**\n * @param {?} view\n * @param {?} action\n * @return {?}\n */\nfunction execComponentViewsAction(view, action) {\n    /** @type {?} */\n    const def = view.def;\n    if (!(def.nodeFlags & 33554432 /* ComponentView */)) {\n        return;\n    }\n    for (let i = 0; i < def.nodes.length; i++) {\n        /** @type {?} */\n        const nodeDef = def.nodes[i];\n        if (nodeDef.flags & 33554432 /* ComponentView */) {\n            // a leaf\n            callViewAction(asElementData(view, i).componentView, action);\n        }\n        else if ((nodeDef.childFlags & 33554432 /* ComponentView */) === 0) {\n            // a parent with leafs\n            // no child is a component,\n            // then skip the children\n            i += nodeDef.childCount;\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} action\n * @return {?}\n */\nfunction execEmbeddedViewsAction(view, action) {\n    /** @type {?} */\n    const def = view.def;\n    if (!(def.nodeFlags & 16777216 /* EmbeddedViews */)) {\n        return;\n    }\n    for (let i = 0; i < def.nodes.length; i++) {\n        /** @type {?} */\n        const nodeDef = def.nodes[i];\n        if (nodeDef.flags & 16777216 /* EmbeddedViews */) {\n            // a leaf\n            /** @type {?} */\n            const embeddedViews = (/** @type {?} */ (asElementData(view, i).viewContainer))._embeddedViews;\n            for (let k = 0; k < embeddedViews.length; k++) {\n                callViewAction(embeddedViews[k], action);\n            }\n        }\n        else if ((nodeDef.childFlags & 16777216 /* EmbeddedViews */) === 0) {\n            // a parent with leafs\n            // no child is a component,\n            // then skip the children\n            i += nodeDef.childCount;\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} action\n * @return {?}\n */\nfunction callViewAction(view, action) {\n    /** @type {?} */\n    const viewState = view.state;\n    switch (action) {\n        case ViewAction.CheckNoChanges:\n            if ((viewState & 128 /* Destroyed */) === 0) {\n                if ((viewState & 12 /* CatDetectChanges */) === 12 /* CatDetectChanges */) {\n                    checkNoChangesView(view);\n                }\n                else if (viewState & 64 /* CheckProjectedViews */) {\n                    execProjectedViewsAction(view, ViewAction.CheckNoChangesProjectedViews);\n                }\n            }\n            break;\n        case ViewAction.CheckNoChangesProjectedViews:\n            if ((viewState & 128 /* Destroyed */) === 0) {\n                if (viewState & 32 /* CheckProjectedView */) {\n                    checkNoChangesView(view);\n                }\n                else if (viewState & 64 /* CheckProjectedViews */) {\n                    execProjectedViewsAction(view, action);\n                }\n            }\n            break;\n        case ViewAction.CheckAndUpdate:\n            if ((viewState & 128 /* Destroyed */) === 0) {\n                if ((viewState & 12 /* CatDetectChanges */) === 12 /* CatDetectChanges */) {\n                    checkAndUpdateView(view);\n                }\n                else if (viewState & 64 /* CheckProjectedViews */) {\n                    execProjectedViewsAction(view, ViewAction.CheckAndUpdateProjectedViews);\n                }\n            }\n            break;\n        case ViewAction.CheckAndUpdateProjectedViews:\n            if ((viewState & 128 /* Destroyed */) === 0) {\n                if (viewState & 32 /* CheckProjectedView */) {\n                    checkAndUpdateView(view);\n                }\n                else if (viewState & 64 /* CheckProjectedViews */) {\n                    execProjectedViewsAction(view, action);\n                }\n            }\n            break;\n        case ViewAction.Destroy:\n            // Note: destroyView recurses over all views,\n            // so we don't need to special case projected views here.\n            destroyView(view);\n            break;\n        case ViewAction.CreateViewNodes:\n            createViewNodes(view);\n            break;\n    }\n}\n/**\n * @param {?} view\n * @param {?} action\n * @return {?}\n */\nfunction execProjectedViewsAction(view, action) {\n    execEmbeddedViewsAction(view, action);\n    execComponentViewsAction(view, action);\n}\n/**\n * @param {?} view\n * @param {?} queryFlags\n * @param {?} staticDynamicQueryFlag\n * @param {?} checkType\n * @return {?}\n */\nfunction execQueriesAction(view, queryFlags, staticDynamicQueryFlag, checkType) {\n    if (!(view.def.nodeFlags & queryFlags) || !(view.def.nodeFlags & staticDynamicQueryFlag)) {\n        return;\n    }\n    /** @type {?} */\n    const nodeCount = view.def.nodes.length;\n    for (let i = 0; i < nodeCount; i++) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[i];\n        if ((nodeDef.flags & queryFlags) && (nodeDef.flags & staticDynamicQueryFlag)) {\n            Services.setCurrentNode(view, nodeDef.nodeIndex);\n            switch (checkType) {\n                case 0 /* CheckAndUpdate */:\n                    checkAndUpdateQuery(view, nodeDef);\n                    break;\n                case 1 /* CheckNoChanges */:\n                    checkNoChangesQuery(view, nodeDef);\n                    break;\n            }\n        }\n        if (!(nodeDef.childFlags & queryFlags) || !(nodeDef.childFlags & staticDynamicQueryFlag)) {\n            // no child has a matching query\n            // then skip the children\n            i += nodeDef.childCount;\n        }\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/services.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nlet initialized = false;\n/**\n * @return {?}\n */\nfunction initServicesIfNeeded() {\n    if (initialized) {\n        return;\n    }\n    initialized = true;\n    /** @type {?} */\n    const services = isDevMode() ? createDebugServices() : createProdServices();\n    Services.setCurrentNode = services.setCurrentNode;\n    Services.createRootView = services.createRootView;\n    Services.createEmbeddedView = services.createEmbeddedView;\n    Services.createComponentView = services.createComponentView;\n    Services.createNgModuleRef = services.createNgModuleRef;\n    Services.overrideProvider = services.overrideProvider;\n    Services.overrideComponentView = services.overrideComponentView;\n    Services.clearOverrides = services.clearOverrides;\n    Services.checkAndUpdateView = services.checkAndUpdateView;\n    Services.checkNoChangesView = services.checkNoChangesView;\n    Services.destroyView = services.destroyView;\n    Services.resolveDep = resolveDep;\n    Services.createDebugContext = services.createDebugContext;\n    Services.handleEvent = services.handleEvent;\n    Services.updateDirectives = services.updateDirectives;\n    Services.updateRenderer = services.updateRenderer;\n    Services.dirtyParentQueries = dirtyParentQueries;\n}\n/**\n * @return {?}\n */\nfunction createProdServices() {\n    return {\n        setCurrentNode: (/**\n         * @return {?}\n         */\n        () => { }),\n        createRootView: createProdRootView,\n        createEmbeddedView: createEmbeddedView,\n        createComponentView: createComponentView,\n        createNgModuleRef: createNgModuleRef,\n        overrideProvider: NOOP,\n        overrideComponentView: NOOP,\n        clearOverrides: NOOP,\n        checkAndUpdateView: checkAndUpdateView,\n        checkNoChangesView: checkNoChangesView,\n        destroyView: destroyView,\n        createDebugContext: (/**\n         * @param {?} view\n         * @param {?} nodeIndex\n         * @return {?}\n         */\n        (view, nodeIndex) => new DebugContext_(view, nodeIndex)),\n        handleEvent: (/**\n         * @param {?} view\n         * @param {?} nodeIndex\n         * @param {?} eventName\n         * @param {?} event\n         * @return {?}\n         */\n        (view, nodeIndex, eventName, event) => view.def.handleEvent(view, nodeIndex, eventName, event)),\n        updateDirectives: (/**\n         * @param {?} view\n         * @param {?} checkType\n         * @return {?}\n         */\n        (view, checkType) => view.def.updateDirectives(checkType === 0 /* CheckAndUpdate */ ? prodCheckAndUpdateNode : prodCheckNoChangesNode, view)),\n        updateRenderer: (/**\n         * @param {?} view\n         * @param {?} checkType\n         * @return {?}\n         */\n        (view, checkType) => view.def.updateRenderer(checkType === 0 /* CheckAndUpdate */ ? prodCheckAndUpdateNode : prodCheckNoChangesNode, view)),\n    };\n}\n/**\n * @return {?}\n */\nfunction createDebugServices() {\n    return {\n        setCurrentNode: debugSetCurrentNode,\n        createRootView: debugCreateRootView,\n        createEmbeddedView: debugCreateEmbeddedView,\n        createComponentView: debugCreateComponentView,\n        createNgModuleRef: debugCreateNgModuleRef,\n        overrideProvider: debugOverrideProvider,\n        overrideComponentView: debugOverrideComponentView,\n        clearOverrides: debugClearOverrides,\n        checkAndUpdateView: debugCheckAndUpdateView,\n        checkNoChangesView: debugCheckNoChangesView,\n        destroyView: debugDestroyView,\n        createDebugContext: (/**\n         * @param {?} view\n         * @param {?} nodeIndex\n         * @return {?}\n         */\n        (view, nodeIndex) => new DebugContext_(view, nodeIndex)),\n        handleEvent: debugHandleEvent,\n        updateDirectives: debugUpdateDirectives,\n        updateRenderer: debugUpdateRenderer,\n    };\n}\n/**\n * @param {?} elInjector\n * @param {?} projectableNodes\n * @param {?} rootSelectorOrNode\n * @param {?} def\n * @param {?} ngModule\n * @param {?=} context\n * @return {?}\n */\nfunction createProdRootView(elInjector, projectableNodes, rootSelectorOrNode, def, ngModule, context) {\n    /** @type {?} */\n    const rendererFactory = ngModule.injector.get(RendererFactory2);\n    return createRootView(createRootData(elInjector, ngModule, rendererFactory, projectableNodes, rootSelectorOrNode), def, context);\n}\n/**\n * @param {?} elInjector\n * @param {?} projectableNodes\n * @param {?} rootSelectorOrNode\n * @param {?} def\n * @param {?} ngModule\n * @param {?=} context\n * @return {?}\n */\nfunction debugCreateRootView(elInjector, projectableNodes, rootSelectorOrNode, def, ngModule, context) {\n    /** @type {?} */\n    const rendererFactory = ngModule.injector.get(RendererFactory2);\n    /** @type {?} */\n    const root = createRootData(elInjector, ngModule, new DebugRendererFactory2(rendererFactory), projectableNodes, rootSelectorOrNode);\n    /** @type {?} */\n    const defWithOverride = applyProviderOverridesToView(def);\n    return callWithDebugContext(DebugAction.create, createRootView, null, [root, defWithOverride, context]);\n}\n/**\n * @param {?} elInjector\n * @param {?} ngModule\n * @param {?} rendererFactory\n * @param {?} projectableNodes\n * @param {?} rootSelectorOrNode\n * @return {?}\n */\nfunction createRootData(elInjector, ngModule, rendererFactory, projectableNodes, rootSelectorOrNode) {\n    /** @type {?} */\n    const sanitizer = ngModule.injector.get(Sanitizer);\n    /** @type {?} */\n    const errorHandler = ngModule.injector.get(ErrorHandler);\n    /** @type {?} */\n    const renderer = rendererFactory.createRenderer(null, null);\n    return {\n        ngModule,\n        injector: elInjector,\n        projectableNodes,\n        selectorOrNode: rootSelectorOrNode,\n        sanitizer,\n        rendererFactory,\n        renderer,\n        errorHandler\n    };\n}\n/**\n * @param {?} parentView\n * @param {?} anchorDef\n * @param {?} viewDef\n * @param {?=} context\n * @return {?}\n */\nfunction debugCreateEmbeddedView(parentView, anchorDef, viewDef, context) {\n    /** @type {?} */\n    const defWithOverride = applyProviderOverridesToView(viewDef);\n    return callWithDebugContext(DebugAction.create, createEmbeddedView, null, [parentView, anchorDef, defWithOverride, context]);\n}\n/**\n * @param {?} parentView\n * @param {?} nodeDef\n * @param {?} viewDef\n * @param {?} hostElement\n * @return {?}\n */\nfunction debugCreateComponentView(parentView, nodeDef, viewDef, hostElement) {\n    /** @type {?} */\n    const overrideComponentView = viewDefOverrides.get((/** @type {?} */ ((/** @type {?} */ ((/** @type {?} */ (nodeDef.element)).componentProvider)).provider)).token);\n    if (overrideComponentView) {\n        viewDef = overrideComponentView;\n    }\n    else {\n        viewDef = applyProviderOverridesToView(viewDef);\n    }\n    return callWithDebugContext(DebugAction.create, createComponentView, null, [parentView, nodeDef, viewDef, hostElement]);\n}\n/**\n * @param {?} moduleType\n * @param {?} parentInjector\n * @param {?} bootstrapComponents\n * @param {?} def\n * @return {?}\n */\nfunction debugCreateNgModuleRef(moduleType, parentInjector, bootstrapComponents, def) {\n    /** @type {?} */\n    const defWithOverride = applyProviderOverridesToNgModule(def);\n    return createNgModuleRef(moduleType, parentInjector, bootstrapComponents, defWithOverride);\n}\n/** @type {?} */\nconst providerOverrides = new Map();\n/** @type {?} */\nconst providerOverridesWithScope = new Map();\n/** @type {?} */\nconst viewDefOverrides = new Map();\n/**\n * @param {?} override\n * @return {?}\n */\nfunction debugOverrideProvider(override) {\n    providerOverrides.set(override.token, override);\n    /** @type {?} */\n    let injectableDef;\n    if (typeof override.token === 'function' && (injectableDef = getInjectableDef(override.token)) &&\n        typeof injectableDef.providedIn === 'function') {\n        providerOverridesWithScope.set((/** @type {?} */ (override.token)), override);\n    }\n}\n/**\n * @param {?} comp\n * @param {?} compFactory\n * @return {?}\n */\nfunction debugOverrideComponentView(comp, compFactory) {\n    /** @type {?} */\n    const hostViewDef = resolveDefinition(getComponentViewDefinitionFactory(compFactory));\n    /** @type {?} */\n    const compViewDef = resolveDefinition((/** @type {?} */ ((/** @type {?} */ (hostViewDef.nodes[0].element)).componentView)));\n    viewDefOverrides.set(comp, compViewDef);\n}\n/**\n * @return {?}\n */\nfunction debugClearOverrides() {\n    providerOverrides.clear();\n    providerOverridesWithScope.clear();\n    viewDefOverrides.clear();\n}\n// Notes about the algorithm:\n// 1) Locate the providers of an element and check if one of them was overwritten\n// 2) Change the providers of that element\n//\n// We only create new datastructures if we need to, to keep perf impact\n// reasonable.\n/**\n * @param {?} def\n * @return {?}\n */\nfunction applyProviderOverridesToView(def) {\n    if (providerOverrides.size === 0) {\n        return def;\n    }\n    /** @type {?} */\n    const elementIndicesWithOverwrittenProviders = findElementIndicesWithOverwrittenProviders(def);\n    if (elementIndicesWithOverwrittenProviders.length === 0) {\n        return def;\n    }\n    // clone the whole view definition,\n    // as it maintains references between the nodes that are hard to update.\n    def = (/** @type {?} */ (def.factory))((/**\n     * @return {?}\n     */\n    () => NOOP));\n    for (let i = 0; i < elementIndicesWithOverwrittenProviders.length; i++) {\n        applyProviderOverridesToElement(def, elementIndicesWithOverwrittenProviders[i]);\n    }\n    return def;\n    /**\n     * @param {?} def\n     * @return {?}\n     */\n    function findElementIndicesWithOverwrittenProviders(def) {\n        /** @type {?} */\n        const elIndicesWithOverwrittenProviders = [];\n        /** @type {?} */\n        let lastElementDef = null;\n        for (let i = 0; i < def.nodes.length; i++) {\n            /** @type {?} */\n            const nodeDef = def.nodes[i];\n            if (nodeDef.flags & 1 /* TypeElement */) {\n                lastElementDef = nodeDef;\n            }\n            if (lastElementDef && nodeDef.flags & 3840 /* CatProviderNoDirective */ &&\n                providerOverrides.has((/** @type {?} */ (nodeDef.provider)).token)) {\n                elIndicesWithOverwrittenProviders.push((/** @type {?} */ (lastElementDef)).nodeIndex);\n                lastElementDef = null;\n            }\n        }\n        return elIndicesWithOverwrittenProviders;\n    }\n    /**\n     * @param {?} viewDef\n     * @param {?} elIndex\n     * @return {?}\n     */\n    function applyProviderOverridesToElement(viewDef, elIndex) {\n        for (let i = elIndex + 1; i < viewDef.nodes.length; i++) {\n            /** @type {?} */\n            const nodeDef = viewDef.nodes[i];\n            if (nodeDef.flags & 1 /* TypeElement */) {\n                // stop at the next element\n                return;\n            }\n            if (nodeDef.flags & 3840 /* CatProviderNoDirective */) {\n                /** @type {?} */\n                const provider = (/** @type {?} */ (nodeDef.provider));\n                /** @type {?} */\n                const override = providerOverrides.get(provider.token);\n                if (override) {\n                    nodeDef.flags = (nodeDef.flags & ~3840 /* CatProviderNoDirective */) | override.flags;\n                    provider.deps = splitDepsDsl(override.deps);\n                    provider.value = override.value;\n                }\n            }\n        }\n    }\n}\n// Notes about the algorithm:\n// We only create new datastructures if we need to, to keep perf impact\n// reasonable.\n/**\n * @param {?} def\n * @return {?}\n */\nfunction applyProviderOverridesToNgModule(def) {\n    const { hasOverrides, hasDeprecatedOverrides } = calcHasOverrides(def);\n    if (!hasOverrides) {\n        return def;\n    }\n    // clone the whole view definition,\n    // as it maintains references between the nodes that are hard to update.\n    def = (/** @type {?} */ (def.factory))((/**\n     * @return {?}\n     */\n    () => NOOP));\n    applyProviderOverrides(def);\n    return def;\n    /**\n     * @param {?} def\n     * @return {?}\n     */\n    function calcHasOverrides(def) {\n        /** @type {?} */\n        let hasOverrides = false;\n        /** @type {?} */\n        let hasDeprecatedOverrides = false;\n        if (providerOverrides.size === 0) {\n            return { hasOverrides, hasDeprecatedOverrides };\n        }\n        def.providers.forEach((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => {\n            /** @type {?} */\n            const override = providerOverrides.get(node.token);\n            if ((node.flags & 3840 /* CatProviderNoDirective */) && override) {\n                hasOverrides = true;\n                hasDeprecatedOverrides = hasDeprecatedOverrides || override.deprecatedBehavior;\n            }\n        }));\n        def.modules.forEach((/**\n         * @param {?} module\n         * @return {?}\n         */\n        module => {\n            providerOverridesWithScope.forEach((/**\n             * @param {?} override\n             * @param {?} token\n             * @return {?}\n             */\n            (override, token) => {\n                if ((/** @type {?} */ (getInjectableDef(token))).providedIn === module) {\n                    hasOverrides = true;\n                    hasDeprecatedOverrides = hasDeprecatedOverrides || override.deprecatedBehavior;\n                }\n            }));\n        }));\n        return { hasOverrides, hasDeprecatedOverrides };\n    }\n    /**\n     * @param {?} def\n     * @return {?}\n     */\n    function applyProviderOverrides(def) {\n        for (let i = 0; i < def.providers.length; i++) {\n            /** @type {?} */\n            const provider = def.providers[i];\n            if (hasDeprecatedOverrides) {\n                // We had a bug where me made\n                // all providers lazy. Keep this logic behind a flag\n                // for migrating existing users.\n                provider.flags |= 4096 /* LazyProvider */;\n            }\n            /** @type {?} */\n            const override = providerOverrides.get(provider.token);\n            if (override) {\n                provider.flags = (provider.flags & ~3840 /* CatProviderNoDirective */) | override.flags;\n                provider.deps = splitDepsDsl(override.deps);\n                provider.value = override.value;\n            }\n        }\n        if (providerOverridesWithScope.size > 0) {\n            /** @type {?} */\n            let moduleSet = new Set(def.modules);\n            providerOverridesWithScope.forEach((/**\n             * @param {?} override\n             * @param {?} token\n             * @return {?}\n             */\n            (override, token) => {\n                if (moduleSet.has((/** @type {?} */ (getInjectableDef(token))).providedIn)) {\n                    /** @type {?} */\n                    let provider = {\n                        token: token,\n                        flags: override.flags | (hasDeprecatedOverrides ? 4096 /* LazyProvider */ : 0 /* None */),\n                        deps: splitDepsDsl(override.deps),\n                        value: override.value,\n                        index: def.providers.length,\n                    };\n                    def.providers.push(provider);\n                    def.providersByKey[tokenKey(token)] = provider;\n                }\n            }));\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} checkIndex\n * @param {?} argStyle\n * @param {?=} v0\n * @param {?=} v1\n * @param {?=} v2\n * @param {?=} v3\n * @param {?=} v4\n * @param {?=} v5\n * @param {?=} v6\n * @param {?=} v7\n * @param {?=} v8\n * @param {?=} v9\n * @return {?}\n */\nfunction prodCheckAndUpdateNode(view, checkIndex, argStyle, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    /** @type {?} */\n    const nodeDef = view.def.nodes[checkIndex];\n    checkAndUpdateNode(view, nodeDef, argStyle, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n    return (nodeDef.flags & 224 /* CatPureExpression */) ?\n        asPureExpressionData(view, checkIndex).value :\n        undefined;\n}\n/**\n * @param {?} view\n * @param {?} checkIndex\n * @param {?} argStyle\n * @param {?=} v0\n * @param {?=} v1\n * @param {?=} v2\n * @param {?=} v3\n * @param {?=} v4\n * @param {?=} v5\n * @param {?=} v6\n * @param {?=} v7\n * @param {?=} v8\n * @param {?=} v9\n * @return {?}\n */\nfunction prodCheckNoChangesNode(view, checkIndex, argStyle, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9) {\n    /** @type {?} */\n    const nodeDef = view.def.nodes[checkIndex];\n    checkNoChangesNode(view, nodeDef, argStyle, v0, v1, v2, v3, v4, v5, v6, v7, v8, v9);\n    return (nodeDef.flags & 224 /* CatPureExpression */) ?\n        asPureExpressionData(view, checkIndex).value :\n        undefined;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction debugCheckAndUpdateView(view) {\n    return callWithDebugContext(DebugAction.detectChanges, checkAndUpdateView, null, [view]);\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction debugCheckNoChangesView(view) {\n    return callWithDebugContext(DebugAction.checkNoChanges, checkNoChangesView, null, [view]);\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction debugDestroyView(view) {\n    return callWithDebugContext(DebugAction.destroy, destroyView, null, [view]);\n}\n/** @enum {number} */\nconst DebugAction = {\n    create: 0,\n    detectChanges: 1,\n    checkNoChanges: 2,\n    destroy: 3,\n    handleEvent: 4,\n};\nDebugAction[DebugAction.create] = 'create';\nDebugAction[DebugAction.detectChanges] = 'detectChanges';\nDebugAction[DebugAction.checkNoChanges] = 'checkNoChanges';\nDebugAction[DebugAction.destroy] = 'destroy';\nDebugAction[DebugAction.handleEvent] = 'handleEvent';\n/** @type {?} */\nlet _currentAction;\n/** @type {?} */\nlet _currentView;\n/** @type {?} */\nlet _currentNodeIndex;\n/**\n * @param {?} view\n * @param {?} nodeIndex\n * @return {?}\n */\nfunction debugSetCurrentNode(view, nodeIndex) {\n    _currentView = view;\n    _currentNodeIndex = nodeIndex;\n}\n/**\n * @param {?} view\n * @param {?} nodeIndex\n * @param {?} eventName\n * @param {?} event\n * @return {?}\n */\nfunction debugHandleEvent(view, nodeIndex, eventName, event) {\n    debugSetCurrentNode(view, nodeIndex);\n    return callWithDebugContext(DebugAction.handleEvent, view.def.handleEvent, null, [view, nodeIndex, eventName, event]);\n}\n/**\n * @param {?} view\n * @param {?} checkType\n * @return {?}\n */\nfunction debugUpdateDirectives(view, checkType) {\n    if (view.state & 128 /* Destroyed */) {\n        throw viewDestroyedError(DebugAction[_currentAction]);\n    }\n    debugSetCurrentNode(view, nextDirectiveWithBinding(view, 0));\n    return view.def.updateDirectives(debugCheckDirectivesFn, view);\n    /**\n     * @param {?} view\n     * @param {?} nodeIndex\n     * @param {?} argStyle\n     * @param {...?} values\n     * @return {?}\n     */\n    function debugCheckDirectivesFn(view, nodeIndex, argStyle, ...values) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[nodeIndex];\n        if (checkType === 0 /* CheckAndUpdate */) {\n            debugCheckAndUpdateNode(view, nodeDef, argStyle, values);\n        }\n        else {\n            debugCheckNoChangesNode(view, nodeDef, argStyle, values);\n        }\n        if (nodeDef.flags & 16384 /* TypeDirective */) {\n            debugSetCurrentNode(view, nextDirectiveWithBinding(view, nodeIndex));\n        }\n        return (nodeDef.flags & 224 /* CatPureExpression */) ?\n            asPureExpressionData(view, nodeDef.nodeIndex).value :\n            undefined;\n    }\n}\n/**\n * @param {?} view\n * @param {?} checkType\n * @return {?}\n */\nfunction debugUpdateRenderer(view, checkType) {\n    if (view.state & 128 /* Destroyed */) {\n        throw viewDestroyedError(DebugAction[_currentAction]);\n    }\n    debugSetCurrentNode(view, nextRenderNodeWithBinding(view, 0));\n    return view.def.updateRenderer(debugCheckRenderNodeFn, view);\n    /**\n     * @param {?} view\n     * @param {?} nodeIndex\n     * @param {?} argStyle\n     * @param {...?} values\n     * @return {?}\n     */\n    function debugCheckRenderNodeFn(view, nodeIndex, argStyle, ...values) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[nodeIndex];\n        if (checkType === 0 /* CheckAndUpdate */) {\n            debugCheckAndUpdateNode(view, nodeDef, argStyle, values);\n        }\n        else {\n            debugCheckNoChangesNode(view, nodeDef, argStyle, values);\n        }\n        if (nodeDef.flags & 3 /* CatRenderNode */) {\n            debugSetCurrentNode(view, nextRenderNodeWithBinding(view, nodeIndex));\n        }\n        return (nodeDef.flags & 224 /* CatPureExpression */) ?\n            asPureExpressionData(view, nodeDef.nodeIndex).value :\n            undefined;\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} argStyle\n * @param {?} givenValues\n * @return {?}\n */\nfunction debugCheckAndUpdateNode(view, nodeDef, argStyle, givenValues) {\n    /** @type {?} */\n    const changed = ((/** @type {?} */ (checkAndUpdateNode)))(view, nodeDef, argStyle, ...givenValues);\n    if (changed) {\n        /** @type {?} */\n        const values = argStyle === 1 /* Dynamic */ ? givenValues[0] : givenValues;\n        if (nodeDef.flags & 16384 /* TypeDirective */) {\n            /** @type {?} */\n            const bindingValues = {};\n            for (let i = 0; i < nodeDef.bindings.length; i++) {\n                /** @type {?} */\n                const binding = nodeDef.bindings[i];\n                /** @type {?} */\n                const value = values[i];\n                if (binding.flags & 8 /* TypeProperty */) {\n                    bindingValues[normalizeDebugBindingName((/** @type {?} */ (binding.nonMinifiedName)))] =\n                        normalizeDebugBindingValue(value);\n                }\n            }\n            /** @type {?} */\n            const elDef = (/** @type {?} */ (nodeDef.parent));\n            /** @type {?} */\n            const el = asElementData(view, elDef.nodeIndex).renderElement;\n            if (!(/** @type {?} */ (elDef.element)).name) {\n                // a comment.\n                view.renderer.setValue(el, `bindings=${JSON.stringify(bindingValues, null, 2)}`);\n            }\n            else {\n                // a regular element.\n                for (let attr in bindingValues) {\n                    /** @type {?} */\n                    const value = bindingValues[attr];\n                    if (value != null) {\n                        view.renderer.setAttribute(el, attr, value);\n                    }\n                    else {\n                        view.renderer.removeAttribute(el, attr);\n                    }\n                }\n            }\n        }\n    }\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} argStyle\n * @param {?} values\n * @return {?}\n */\nfunction debugCheckNoChangesNode(view, nodeDef, argStyle, values) {\n    ((/** @type {?} */ (checkNoChangesNode)))(view, nodeDef, argStyle, ...values);\n}\n/**\n * @param {?} view\n * @param {?} nodeIndex\n * @return {?}\n */\nfunction nextDirectiveWithBinding(view, nodeIndex) {\n    for (let i = nodeIndex; i < view.def.nodes.length; i++) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[i];\n        if (nodeDef.flags & 16384 /* TypeDirective */ && nodeDef.bindings && nodeDef.bindings.length) {\n            return i;\n        }\n    }\n    return null;\n}\n/**\n * @param {?} view\n * @param {?} nodeIndex\n * @return {?}\n */\nfunction nextRenderNodeWithBinding(view, nodeIndex) {\n    for (let i = nodeIndex; i < view.def.nodes.length; i++) {\n        /** @type {?} */\n        const nodeDef = view.def.nodes[i];\n        if ((nodeDef.flags & 3 /* CatRenderNode */) && nodeDef.bindings && nodeDef.bindings.length) {\n            return i;\n        }\n    }\n    return null;\n}\nclass DebugContext_ {\n    /**\n     * @param {?} view\n     * @param {?} nodeIndex\n     */\n    constructor(view, nodeIndex) {\n        this.view = view;\n        this.nodeIndex = nodeIndex;\n        if (nodeIndex == null) {\n            this.nodeIndex = nodeIndex = 0;\n        }\n        this.nodeDef = view.def.nodes[nodeIndex];\n        /** @type {?} */\n        let elDef = this.nodeDef;\n        /** @type {?} */\n        let elView = view;\n        while (elDef && (elDef.flags & 1 /* TypeElement */) === 0) {\n            elDef = (/** @type {?} */ (elDef.parent));\n        }\n        if (!elDef) {\n            while (!elDef && elView) {\n                elDef = (/** @type {?} */ (viewParentEl(elView)));\n                elView = (/** @type {?} */ (elView.parent));\n            }\n        }\n        this.elDef = elDef;\n        this.elView = elView;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    get elOrCompView() {\n        // Has to be done lazily as we use the DebugContext also during creation of elements...\n        return asElementData(this.elView, this.elDef.nodeIndex).componentView || this.view;\n    }\n    /**\n     * @return {?}\n     */\n    get injector() {\n        return createInjector$1(this.elView, this.elDef);\n    }\n    /**\n     * @return {?}\n     */\n    get component() {\n        return this.elOrCompView.component;\n    }\n    /**\n     * @return {?}\n     */\n    get context() {\n        return this.elOrCompView.context;\n    }\n    /**\n     * @return {?}\n     */\n    get providerTokens() {\n        /** @type {?} */\n        const tokens = [];\n        if (this.elDef) {\n            for (let i = this.elDef.nodeIndex + 1; i <= this.elDef.nodeIndex + this.elDef.childCount; i++) {\n                /** @type {?} */\n                const childDef = this.elView.def.nodes[i];\n                if (childDef.flags & 20224 /* CatProvider */) {\n                    tokens.push((/** @type {?} */ (childDef.provider)).token);\n                }\n                i += childDef.childCount;\n            }\n        }\n        return tokens;\n    }\n    /**\n     * @return {?}\n     */\n    get references() {\n        /** @type {?} */\n        const references = {};\n        if (this.elDef) {\n            collectReferences(this.elView, this.elDef, references);\n            for (let i = this.elDef.nodeIndex + 1; i <= this.elDef.nodeIndex + this.elDef.childCount; i++) {\n                /** @type {?} */\n                const childDef = this.elView.def.nodes[i];\n                if (childDef.flags & 20224 /* CatProvider */) {\n                    collectReferences(this.elView, childDef, references);\n                }\n                i += childDef.childCount;\n            }\n        }\n        return references;\n    }\n    /**\n     * @return {?}\n     */\n    get componentRenderElement() {\n        /** @type {?} */\n        const elData = findHostElement(this.elOrCompView);\n        return elData ? elData.renderElement : undefined;\n    }\n    /**\n     * @return {?}\n     */\n    get renderNode() {\n        return this.nodeDef.flags & 2 /* TypeText */ ? renderNode(this.view, this.nodeDef) :\n            renderNode(this.elView, this.elDef);\n    }\n    /**\n     * @param {?} console\n     * @param {...?} values\n     * @return {?}\n     */\n    logError(console, ...values) {\n        /** @type {?} */\n        let logViewDef;\n        /** @type {?} */\n        let logNodeIndex;\n        if (this.nodeDef.flags & 2 /* TypeText */) {\n            logViewDef = this.view.def;\n            logNodeIndex = this.nodeDef.nodeIndex;\n        }\n        else {\n            logViewDef = this.elView.def;\n            logNodeIndex = this.elDef.nodeIndex;\n        }\n        // Note: we only generate a log function for text and element nodes\n        // to make the generated code as small as possible.\n        /** @type {?} */\n        const renderNodeIndex = getRenderNodeIndex(logViewDef, logNodeIndex);\n        /** @type {?} */\n        let currRenderNodeIndex = -1;\n        /** @type {?} */\n        let nodeLogger = (/**\n         * @return {?}\n         */\n        () => {\n            currRenderNodeIndex++;\n            if (currRenderNodeIndex === renderNodeIndex) {\n                return console.error.bind(console, ...values);\n            }\n            else {\n                return NOOP;\n            }\n        });\n        (/** @type {?} */ (logViewDef.factory))(nodeLogger);\n        if (currRenderNodeIndex < renderNodeIndex) {\n            console.error('Illegal state: the ViewDefinitionFactory did not call the logger!');\n            ((/** @type {?} */ (console.error)))(...values);\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DebugContext_.prototype.nodeDef;\n    /**\n     * @type {?}\n     * @private\n     */\n    DebugContext_.prototype.elView;\n    /**\n     * @type {?}\n     * @private\n     */\n    DebugContext_.prototype.elDef;\n    /** @type {?} */\n    DebugContext_.prototype.view;\n    /** @type {?} */\n    DebugContext_.prototype.nodeIndex;\n}\n/**\n * @param {?} viewDef\n * @param {?} nodeIndex\n * @return {?}\n */\nfunction getRenderNodeIndex(viewDef, nodeIndex) {\n    /** @type {?} */\n    let renderNodeIndex = -1;\n    for (let i = 0; i <= nodeIndex; i++) {\n        /** @type {?} */\n        const nodeDef = viewDef.nodes[i];\n        if (nodeDef.flags & 3 /* CatRenderNode */) {\n            renderNodeIndex++;\n        }\n    }\n    return renderNodeIndex;\n}\n/**\n * @param {?} view\n * @return {?}\n */\nfunction findHostElement(view) {\n    while (view && !isComponentView(view)) {\n        view = (/** @type {?} */ (view.parent));\n    }\n    if (view.parent) {\n        return asElementData(view.parent, (/** @type {?} */ (viewParentEl(view))).nodeIndex);\n    }\n    return null;\n}\n/**\n * @param {?} view\n * @param {?} nodeDef\n * @param {?} references\n * @return {?}\n */\nfunction collectReferences(view, nodeDef, references) {\n    for (let refName in nodeDef.references) {\n        references[refName] = getQueryValue(view, nodeDef, nodeDef.references[refName]);\n    }\n}\n/**\n * @param {?} action\n * @param {?} fn\n * @param {?} self\n * @param {?} args\n * @return {?}\n */\nfunction callWithDebugContext(action, fn, self, args) {\n    /** @type {?} */\n    const oldAction = _currentAction;\n    /** @type {?} */\n    const oldView = _currentView;\n    /** @type {?} */\n    const oldNodeIndex = _currentNodeIndex;\n    try {\n        _currentAction = action;\n        /** @type {?} */\n        const result = fn.apply(self, args);\n        _currentView = oldView;\n        _currentNodeIndex = oldNodeIndex;\n        _currentAction = oldAction;\n        return result;\n    }\n    catch (e) {\n        if (isViewDebugError(e) || !_currentView) {\n            throw e;\n        }\n        throw viewWrappedDebugError(e, (/** @type {?} */ (getCurrentDebugContext())));\n    }\n}\n/**\n * @return {?}\n */\nfunction getCurrentDebugContext() {\n    return _currentView ? new DebugContext_(_currentView, _currentNodeIndex) : null;\n}\nclass DebugRendererFactory2 {\n    /**\n     * @param {?} delegate\n     */\n    constructor(delegate) {\n        this.delegate = delegate;\n    }\n    /**\n     * @param {?} element\n     * @param {?} renderData\n     * @return {?}\n     */\n    createRenderer(element, renderData) {\n        return new DebugRenderer2(this.delegate.createRenderer(element, renderData));\n    }\n    /**\n     * @return {?}\n     */\n    begin() {\n        if (this.delegate.begin) {\n            this.delegate.begin();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    end() {\n        if (this.delegate.end) {\n            this.delegate.end();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    whenRenderingDone() {\n        if (this.delegate.whenRenderingDone) {\n            return this.delegate.whenRenderingDone();\n        }\n        return Promise.resolve(null);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DebugRendererFactory2.prototype.delegate;\n}\nclass DebugRenderer2 {\n    /**\n     * @param {?} delegate\n     */\n    constructor(delegate) {\n        this.delegate = delegate;\n        /**\n         * Factory function used to create a `DebugContext` when a node is created.\n         *\n         * The `DebugContext` allows to retrieve information about the nodes that are useful in tests.\n         *\n         * The factory is configurable so that the `DebugRenderer2` could instantiate either a View Engine\n         * or a Render context.\n         */\n        this.debugContextFactory = getCurrentDebugContext;\n        this.data = this.delegate.data;\n    }\n    /**\n     * @private\n     * @param {?} nativeElement\n     * @return {?}\n     */\n    createDebugContext(nativeElement) {\n        return this.debugContextFactory(nativeElement);\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    destroyNode(node) {\n        /** @type {?} */\n        const debugNode = (/** @type {?} */ (getDebugNode$1(node)));\n        removeDebugNodeFromIndex(debugNode);\n        if (debugNode instanceof DebugNode__PRE_R3__) {\n            debugNode.listeners.length = 0;\n        }\n        if (this.delegate.destroyNode) {\n            this.delegate.destroyNode(node);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this.delegate.destroy();\n    }\n    /**\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    createElement(name, namespace) {\n        /** @type {?} */\n        const el = this.delegate.createElement(name, namespace);\n        /** @type {?} */\n        const debugCtx = this.createDebugContext(el);\n        if (debugCtx) {\n            /** @type {?} */\n            const debugEl = new DebugElement__PRE_R3__(el, null, debugCtx);\n            ((/** @type {?} */ (debugEl))).name = name;\n            indexDebugNode(debugEl);\n        }\n        return el;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    createComment(value) {\n        /** @type {?} */\n        const comment = this.delegate.createComment(value);\n        /** @type {?} */\n        const debugCtx = this.createDebugContext(comment);\n        if (debugCtx) {\n            indexDebugNode(new DebugNode__PRE_R3__(comment, null, debugCtx));\n        }\n        return comment;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    createText(value) {\n        /** @type {?} */\n        const text = this.delegate.createText(value);\n        /** @type {?} */\n        const debugCtx = this.createDebugContext(text);\n        if (debugCtx) {\n            indexDebugNode(new DebugNode__PRE_R3__(text, null, debugCtx));\n        }\n        return text;\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @return {?}\n     */\n    appendChild(parent, newChild) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(parent);\n        /** @type {?} */\n        const debugChildEl = getDebugNode$1(newChild);\n        if (debugEl && debugChildEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.addChild(debugChildEl);\n        }\n        this.delegate.appendChild(parent, newChild);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @param {?} refChild\n     * @return {?}\n     */\n    insertBefore(parent, newChild, refChild) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(parent);\n        /** @type {?} */\n        const debugChildEl = getDebugNode$1(newChild);\n        /** @type {?} */\n        const debugRefEl = (/** @type {?} */ (getDebugNode$1(refChild)));\n        if (debugEl && debugChildEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.insertBefore(debugRefEl, debugChildEl);\n        }\n        this.delegate.insertBefore(parent, newChild, refChild);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} oldChild\n     * @return {?}\n     */\n    removeChild(parent, oldChild) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(parent);\n        /** @type {?} */\n        const debugChildEl = getDebugNode$1(oldChild);\n        if (debugEl && debugChildEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.removeChild(debugChildEl);\n        }\n        this.delegate.removeChild(parent, oldChild);\n    }\n    /**\n     * @param {?} selectorOrNode\n     * @param {?=} preserveContent\n     * @return {?}\n     */\n    selectRootElement(selectorOrNode, preserveContent) {\n        /** @type {?} */\n        const el = this.delegate.selectRootElement(selectorOrNode, preserveContent);\n        /** @type {?} */\n        const debugCtx = getCurrentDebugContext();\n        if (debugCtx) {\n            indexDebugNode(new DebugElement__PRE_R3__(el, null, debugCtx));\n        }\n        return el;\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @param {?=} namespace\n     * @return {?}\n     */\n    setAttribute(el, name, value, namespace) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(el);\n        if (debugEl && debugEl instanceof DebugElement__PRE_R3__) {\n            /** @type {?} */\n            const fullName = namespace ? namespace + ':' + name : name;\n            debugEl.attributes[fullName] = value;\n        }\n        this.delegate.setAttribute(el, name, value, namespace);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    removeAttribute(el, name, namespace) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(el);\n        if (debugEl && debugEl instanceof DebugElement__PRE_R3__) {\n            /** @type {?} */\n            const fullName = namespace ? namespace + ':' + name : name;\n            debugEl.attributes[fullName] = null;\n        }\n        this.delegate.removeAttribute(el, name, namespace);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    addClass(el, name) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(el);\n        if (debugEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.classes[name] = true;\n        }\n        this.delegate.addClass(el, name);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    removeClass(el, name) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(el);\n        if (debugEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.classes[name] = false;\n        }\n        this.delegate.removeClass(el, name);\n    }\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?} value\n     * @param {?} flags\n     * @return {?}\n     */\n    setStyle(el, style, value, flags) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(el);\n        if (debugEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.styles[style] = value;\n        }\n        this.delegate.setStyle(el, style, value, flags);\n    }\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?} flags\n     * @return {?}\n     */\n    removeStyle(el, style, flags) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(el);\n        if (debugEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.styles[style] = null;\n        }\n        this.delegate.removeStyle(el, style, flags);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    setProperty(el, name, value) {\n        /** @type {?} */\n        const debugEl = getDebugNode$1(el);\n        if (debugEl && debugEl instanceof DebugElement__PRE_R3__) {\n            debugEl.properties[name] = value;\n        }\n        this.delegate.setProperty(el, name, value);\n    }\n    /**\n     * @param {?} target\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(target, eventName, callback) {\n        if (typeof target !== 'string') {\n            /** @type {?} */\n            const debugEl = getDebugNode$1(target);\n            if (debugEl) {\n                debugEl.listeners.push(new DebugEventListener(eventName, callback));\n            }\n        }\n        return this.delegate.listen(target, eventName, callback);\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    parentNode(node) {\n        return this.delegate.parentNode(node);\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    nextSibling(node) {\n        return this.delegate.nextSibling(node);\n    }\n    /**\n     * @param {?} node\n     * @param {?} value\n     * @return {?}\n     */\n    setValue(node, value) {\n        return this.delegate.setValue(node, value);\n    }\n}\nif (false) {\n    /** @type {?} */\n    DebugRenderer2.prototype.data;\n    /**\n     * Factory function used to create a `DebugContext` when a node is created.\n     *\n     * The `DebugContext` allows to retrieve information about the nodes that are useful in tests.\n     *\n     * The factory is configurable so that the `DebugRenderer2` could instantiate either a View Engine\n     * or a Render context.\n     * @type {?}\n     */\n    DebugRenderer2.prototype.debugContextFactory;\n    /**\n     * @type {?}\n     * @private\n     */\n    DebugRenderer2.prototype.delegate;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/entrypoint.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} override\n * @return {?}\n */\nfunction overrideProvider(override) {\n    initServicesIfNeeded();\n    return Services.overrideProvider(override);\n}\n/**\n * @param {?} comp\n * @param {?} componentFactory\n * @return {?}\n */\nfunction overrideComponentView(comp, componentFactory) {\n    initServicesIfNeeded();\n    return Services.overrideComponentView(comp, componentFactory);\n}\n/**\n * @return {?}\n */\nfunction clearOverrides() {\n    initServicesIfNeeded();\n    return Services.clearOverrides();\n}\n// Attention: this function is called as top level function.\n// Putting any logic in here will destroy closure tree shaking!\n/**\n * @param {?} ngModuleType\n * @param {?} bootstrapComponents\n * @param {?} defFactory\n * @return {?}\n */\nfunction createNgModuleFactory(ngModuleType, bootstrapComponents, defFactory) {\n    return new NgModuleFactory_(ngModuleType, bootstrapComponents, defFactory);\n}\n/**\n * @param {?} def\n * @return {?}\n */\nfunction cloneNgModuleDefinition(def) {\n    /** @type {?} */\n    const providers = Array.from(def.providers);\n    /** @type {?} */\n    const modules = Array.from(def.modules);\n    /** @type {?} */\n    const providersByKey = {};\n    for (const key in def.providersByKey) {\n        providersByKey[key] = def.providersByKey[key];\n    }\n    return {\n        factory: def.factory,\n        scope: def.scope,\n        providers,\n        modules,\n        providersByKey,\n    };\n}\nclass NgModuleFactory_ extends NgModuleFactory {\n    /**\n     * @param {?} moduleType\n     * @param {?} _bootstrapComponents\n     * @param {?} _ngModuleDefFactory\n     */\n    constructor(moduleType, _bootstrapComponents, _ngModuleDefFactory) {\n        // Attention: this ctor is called as top level function.\n        // Putting any logic in here will destroy closure tree shaking!\n        super();\n        this.moduleType = moduleType;\n        this._bootstrapComponents = _bootstrapComponents;\n        this._ngModuleDefFactory = _ngModuleDefFactory;\n    }\n    /**\n     * @param {?} parentInjector\n     * @return {?}\n     */\n    create(parentInjector) {\n        initServicesIfNeeded();\n        // Clone the NgModuleDefinition so that any tree shakeable provider definition\n        // added to this instance of the NgModuleRef doesn't affect the cached copy.\n        // See https://github.com/angular/angular/issues/25018.\n        /** @type {?} */\n        const def = cloneNgModuleDefinition(resolveDefinition(this._ngModuleDefFactory));\n        return Services.createNgModuleRef(this.moduleType, parentInjector || Injector.NULL, this._bootstrapComponents, def);\n    }\n}\nif (false) {\n    /** @type {?} */\n    NgModuleFactory_.prototype.moduleType;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgModuleFactory_.prototype._bootstrapComponents;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgModuleFactory_.prototype._ngModuleDefFactory;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/view/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/core_private_export.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/core_render3_private_export.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/codegen_private_exports.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/src/core.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nif (ngDevMode) {\n    // This helper is to give a reasonable error message to people upgrading to v9 that have not yet\n    // installed `@angular/localize` in their app.\n    // tslint:disable-next-line: no-toplevel-property-access\n    _global.$localize = _global.$localize || (/**\n     * @return {?}\n     */\n    function () {\n        throw new Error('It looks like your application or one of its dependencies is using i18n.\\n' +\n            'Angular 9 introduced a global `$localize()` function that needs to be loaded.\\n' +\n            'Please run `ng add @angular/localize` from the Angular CLI.\\n' +\n            '(For non-CLI projects, add `import \\'@angular/localize/init\\';` to your `polyfills.ts` file.\\n' +\n            'For server-side rendering applications add the import to your `main.server.ts` file.)');\n    });\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/core/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ANALYZE_FOR_ENTRY_COMPONENTS, APP_BOOTSTRAP_LISTENER, APP_ID, APP_INITIALIZER, ApplicationInitStatus, ApplicationModule, ApplicationRef, Attribute, COMPILER_OPTIONS, CUSTOM_ELEMENTS_SCHEMA, ChangeDetectionStrategy, ChangeDetectorRef, Compiler, CompilerFactory, Component, ComponentFactory, ComponentFactoryResolver, ComponentRef, ContentChild, ContentChildren, DEFAULT_CURRENCY_CODE, DebugElement, DebugEventListener, DebugNode$1 as DebugNode, DefaultIterableDiffer, Directive, ElementRef, EmbeddedViewRef, ErrorHandler, EventEmitter, Host, HostBinding, HostListener, INJECTOR, Inject, InjectFlags, Injectable, InjectionToken, Injector, Input, IterableDiffers, KeyValueDiffers, LOCALE_ID$1 as LOCALE_ID, MissingTranslationStrategy, ModuleWithComponentFactories, NO_ERRORS_SCHEMA, NgModule, NgModuleFactory, NgModuleFactoryLoader, NgModuleRef, NgProbeToken, NgZone, Optional, Output, PACKAGE_ROOT_URL, PLATFORM_ID, PLATFORM_INITIALIZER, Pipe, PlatformRef, Query, QueryList, ReflectiveInjector, ReflectiveKey, Renderer2, RendererFactory2, RendererStyleFlags2, ResolvedReflectiveFactory, Sanitizer, SecurityContext, Self, SimpleChange, SkipSelf, SystemJsNgModuleLoader, SystemJsNgModuleLoaderConfig, TRANSLATIONS, TRANSLATIONS_FORMAT, TemplateRef, Testability, TestabilityRegistry, Type, VERSION, Version, ViewChild, ViewChildren, ViewContainerRef, ViewEncapsulation$1 as ViewEncapsulation, ViewRef$1 as ViewRef, WrappedValue, asNativeElements, assertPlatform, createPlatform, createPlatformFactory, defineInjectable, destroyPlatform, enableProdMode, forwardRef, getDebugNode$1 as getDebugNode, getModuleFactory, getPlatform, inject, isDevMode, platformCore, resolveForwardRef, setTestabilityGetter, ALLOW_MULTIPLE_PLATFORMS as ɵALLOW_MULTIPLE_PLATFORMS, APP_ID_RANDOM_PROVIDER as ɵAPP_ID_RANDOM_PROVIDER, ChangeDetectorStatus as ɵChangeDetectorStatus, CodegenComponentFactoryResolver as ɵCodegenComponentFactoryResolver, Compiler_compileModuleAndAllComponentsAsync__POST_R3__ as ɵCompiler_compileModuleAndAllComponentsAsync__POST_R3__, Compiler_compileModuleAndAllComponentsSync__POST_R3__ as ɵCompiler_compileModuleAndAllComponentsSync__POST_R3__, Compiler_compileModuleAsync__POST_R3__ as ɵCompiler_compileModuleAsync__POST_R3__, Compiler_compileModuleSync__POST_R3__ as ɵCompiler_compileModuleSync__POST_R3__, ComponentFactory as ɵComponentFactory, Console as ɵConsole, DEFAULT_LOCALE_ID as ɵDEFAULT_LOCALE_ID, EMPTY_ARRAY$4 as ɵEMPTY_ARRAY, EMPTY_MAP as ɵEMPTY_MAP, INJECTOR_IMPL__POST_R3__ as ɵINJECTOR_IMPL__POST_R3__, INJECTOR_SCOPE as ɵINJECTOR_SCOPE, LifecycleHooksFeature as ɵLifecycleHooksFeature, LocaleDataIndex as ɵLocaleDataIndex, NG_COMP_DEF as ɵNG_COMP_DEF, NG_DIR_DEF as ɵNG_DIR_DEF, NG_ELEMENT_ID as ɵNG_ELEMENT_ID, NG_INJ_DEF as ɵNG_INJ_DEF, NG_MOD_DEF as ɵNG_MOD_DEF, NG_PIPE_DEF as ɵNG_PIPE_DEF, NG_PROV_DEF as ɵNG_PROV_DEF, NOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR as ɵNOT_FOUND_CHECK_ONLY_ELEMENT_INJECTOR, NO_CHANGE as ɵNO_CHANGE, NgModuleFactory$1 as ɵNgModuleFactory, NoopNgZone as ɵNoopNgZone, ReflectionCapabilities as ɵReflectionCapabilities, ComponentFactory$1 as ɵRender3ComponentFactory, ComponentRef$1 as ɵRender3ComponentRef, NgModuleRef$1 as ɵRender3NgModuleRef, SWITCH_CHANGE_DETECTOR_REF_FACTORY__POST_R3__ as ɵSWITCH_CHANGE_DETECTOR_REF_FACTORY__POST_R3__, SWITCH_COMPILE_COMPONENT__POST_R3__ as ɵSWITCH_COMPILE_COMPONENT__POST_R3__, SWITCH_COMPILE_DIRECTIVE__POST_R3__ as ɵSWITCH_COMPILE_DIRECTIVE__POST_R3__, SWITCH_COMPILE_INJECTABLE__POST_R3__ as ɵSWITCH_COMPILE_INJECTABLE__POST_R3__, SWITCH_COMPILE_NGMODULE__POST_R3__ as ɵSWITCH_COMPILE_NGMODULE__POST_R3__, SWITCH_COMPILE_PIPE__POST_R3__ as ɵSWITCH_COMPILE_PIPE__POST_R3__, SWITCH_ELEMENT_REF_FACTORY__POST_R3__ as ɵSWITCH_ELEMENT_REF_FACTORY__POST_R3__, SWITCH_IVY_ENABLED__POST_R3__ as ɵSWITCH_IVY_ENABLED__POST_R3__, SWITCH_RENDERER2_FACTORY__POST_R3__ as ɵSWITCH_RENDERER2_FACTORY__POST_R3__, SWITCH_TEMPLATE_REF_FACTORY__POST_R3__ as ɵSWITCH_TEMPLATE_REF_FACTORY__POST_R3__, SWITCH_VIEW_CONTAINER_REF_FACTORY__POST_R3__ as ɵSWITCH_VIEW_CONTAINER_REF_FACTORY__POST_R3__, _sanitizeHtml as ɵ_sanitizeHtml, _sanitizeStyle as ɵ_sanitizeStyle, _sanitizeUrl as ɵ_sanitizeUrl, allowSanitizationBypassAndThrow as ɵallowSanitizationBypassAndThrow, anchorDef as ɵand, isForwardRef as ɵangular_packages_core_core_a, injectInjectorOnly as ɵangular_packages_core_core_b, getLView as ɵangular_packages_core_core_ba, getPreviousOrParentTNode as ɵangular_packages_core_core_bb, getBindingRoot as ɵangular_packages_core_core_bc, nextContextImpl as ɵangular_packages_core_core_bd, pureFunction1Internal as ɵangular_packages_core_core_bf, pureFunction2Internal as ɵangular_packages_core_core_bg, pureFunction3Internal as ɵangular_packages_core_core_bh, pureFunction4Internal as ɵangular_packages_core_core_bi, pureFunctionVInternal as ɵangular_packages_core_core_bj, getUrlSanitizer as ɵangular_packages_core_core_bk, makeParamDecorator as ɵangular_packages_core_core_bl, makePropDecorator as ɵangular_packages_core_core_bm, getClosureSafeProperty as ɵangular_packages_core_core_bn, noSideEffects as ɵangular_packages_core_core_bp, getRootContext as ɵangular_packages_core_core_bq, NullInjector as ɵangular_packages_core_core_c, ReflectiveInjector_ as ɵangular_packages_core_core_d, ReflectiveDependency as ɵangular_packages_core_core_e, resolveReflectiveProviders as ɵangular_packages_core_core_f, _appIdRandomProviderFactory as ɵangular_packages_core_core_g, createElementRef as ɵangular_packages_core_core_h, createTemplateRef as ɵangular_packages_core_core_i, getModuleFactory__PRE_R3__ as ɵangular_packages_core_core_j, DebugNode__PRE_R3__ as ɵangular_packages_core_core_k, DebugElement__PRE_R3__ as ɵangular_packages_core_core_l, getDebugNodeR2__PRE_R3__ as ɵangular_packages_core_core_m, DefaultIterableDifferFactory as ɵangular_packages_core_core_n, DefaultKeyValueDifferFactory as ɵangular_packages_core_core_o, _iterableDiffersFactory as ɵangular_packages_core_core_p, _keyValueDiffersFactory as ɵangular_packages_core_core_q, _localeFactory as ɵangular_packages_core_core_r, APPLICATION_MODULE_PROVIDERS as ɵangular_packages_core_core_s, zoneSchedulerFactory as ɵangular_packages_core_core_t, USD_CURRENCY_CODE as ɵangular_packages_core_core_u, _def as ɵangular_packages_core_core_v, DebugContext as ɵangular_packages_core_core_w, SCHEDULER as ɵangular_packages_core_core_x, injectAttributeImpl as ɵangular_packages_core_core_y, instructionState as ɵangular_packages_core_core_z, bypassSanitizationTrustHtml as ɵbypassSanitizationTrustHtml, bypassSanitizationTrustResourceUrl as ɵbypassSanitizationTrustResourceUrl, bypassSanitizationTrustScript as ɵbypassSanitizationTrustScript, bypassSanitizationTrustStyle as ɵbypassSanitizationTrustStyle, bypassSanitizationTrustUrl as ɵbypassSanitizationTrustUrl, createComponentFactory as ɵccf, clearOverrides as ɵclearOverrides, clearResolutionOfComponentResourcesQueue as ɵclearResolutionOfComponentResourcesQueue, createNgModuleFactory as ɵcmf, compileComponent as ɵcompileComponent, compileDirective as ɵcompileDirective, compileNgModule as ɵcompileNgModule, compileNgModuleDefs as ɵcompileNgModuleDefs, compileNgModuleFactory__POST_R3__ as ɵcompileNgModuleFactory__POST_R3__, compilePipe as ɵcompilePipe, createInjector as ɵcreateInjector, createRendererType2 as ɵcrt, defaultIterableDiffers as ɵdefaultIterableDiffers, defaultKeyValueDiffers as ɵdefaultKeyValueDiffers, detectChanges as ɵdetectChanges, devModeEqual$1 as ɵdevModeEqual, directiveDef as ɵdid, elementDef as ɵeld, findLocaleData as ɵfindLocaleData, flushModuleScopingQueueAsMuchAsPossible as ɵflushModuleScopingQueueAsMuchAsPossible, getComponentViewDefinitionFactory as ɵgetComponentViewDefinitionFactory, getDebugNodeR2 as ɵgetDebugNodeR2, getDebugNode__POST_R3__ as ɵgetDebugNode__POST_R3__, getDirectives as ɵgetDirectives, getHostElement as ɵgetHostElement, getInjectableDef as ɵgetInjectableDef, getLContext as ɵgetLContext, getLocaleCurrencyCode as ɵgetLocaleCurrencyCode, getLocalePluralCase as ɵgetLocalePluralCase, getModuleFactory__POST_R3__ as ɵgetModuleFactory__POST_R3__, getSanitizationBypassType as ɵgetSanitizationBypassType, _global as ɵglobal, initServicesIfNeeded as ɵinitServicesIfNeeded, inlineInterpolate as ɵinlineInterpolate, interpolate as ɵinterpolate, isBoundToModule__POST_R3__ as ɵisBoundToModule__POST_R3__, isDefaultChangeDetectionStrategy as ɵisDefaultChangeDetectionStrategy, isListLikeIterable$1 as ɵisListLikeIterable, isObservable as ɵisObservable, isPromise as ɵisPromise, ivyEnabled as ɵivyEnabled, looseIdentical as ɵlooseIdentical, makeDecorator as ɵmakeDecorator, markDirty as ɵmarkDirty, moduleDef as ɵmod, moduleProvideDef as ɵmpd, ngContentDef as ɵncd, nodeValue as ɵnov, overrideComponentView as ɵoverrideComponentView, overrideProvider as ɵoverrideProvider, pureArrayDef as ɵpad, patchComponentDefWithScope as ɵpatchComponentDefWithScope, pipeDef as ɵpid, pureObjectDef as ɵpod, purePipeDef as ɵppd, providerDef as ɵprd, publishDefaultGlobalUtils as ɵpublishDefaultGlobalUtils, publishGlobalUtil as ɵpublishGlobalUtil, queryDef as ɵqud, registerLocaleData as ɵregisterLocaleData, registerModuleFactory as ɵregisterModuleFactory, registerNgModuleType as ɵregisterNgModuleType, renderComponent$1 as ɵrenderComponent, resetCompiledComponents as ɵresetCompiledComponents, resetJitOptions as ɵresetJitOptions, resolveComponentResources as ɵresolveComponentResources, setClassMetadata as ɵsetClassMetadata, setCurrentInjector as ɵsetCurrentInjector, setDocument as ɵsetDocument, setLocaleId as ɵsetLocaleId, store as ɵstore, stringify as ɵstringify, textDef as ɵted, transitiveScopesFor as ɵtransitiveScopesFor, unregisterAllLocaleData as ɵunregisterLocaleData, unwrapValue as ɵunv, unwrapSafeValue as ɵunwrapSafeValue, viewDef as ɵvid, whenRendered as ɵwhenRendered, ɵɵCopyDefinitionFeature, ɵɵInheritDefinitionFeature, ɵɵNgOnChangesFeature, ɵɵProvidersFeature, ɵɵadvance, ɵɵattribute, ɵɵattributeInterpolate1, ɵɵattributeInterpolate2, ɵɵattributeInterpolate3, ɵɵattributeInterpolate4, ɵɵattributeInterpolate5, ɵɵattributeInterpolate6, ɵɵattributeInterpolate7, ɵɵattributeInterpolate8, ɵɵattributeInterpolateV, ɵɵclassMap, ɵɵclassMapInterpolate1, ɵɵclassMapInterpolate2, ɵɵclassMapInterpolate3, ɵɵclassMapInterpolate4, ɵɵclassMapInterpolate5, ɵɵclassMapInterpolate6, ɵɵclassMapInterpolate7, ɵɵclassMapInterpolate8, ɵɵclassMapInterpolateV, ɵɵclassProp, ɵɵcomponentHostSyntheticListener, ɵɵcontentQuery, ɵɵdefaultStyleSanitizer, ɵɵdefineComponent, ɵɵdefineDirective, ɵɵdefineInjectable, ɵɵdefineInjector, ɵɵdefineNgModule, ɵɵdefinePipe, ɵɵdirectiveInject, ɵɵdisableBindings, ɵɵelement, ɵɵelementContainer, ɵɵelementContainerEnd, ɵɵelementContainerStart, ɵɵelementEnd, ɵɵelementStart, ɵɵenableBindings, ɵɵgetCurrentView, ɵɵgetFactoryOf, ɵɵgetInheritedFactory, ɵɵhostProperty, ɵɵi18n, ɵɵi18nApply, ɵɵi18nAttributes, ɵɵi18nEnd, ɵɵi18nExp, ɵɵi18nPostprocess, ɵɵi18nStart, ɵɵinject, ɵɵinjectAttribute, ɵɵinjectPipeChangeDetectorRef, ɵɵinvalidFactory, ɵɵinvalidFactoryDep, ɵɵlistener, ɵɵloadQuery, ɵɵnamespaceHTML, ɵɵnamespaceMathML, ɵɵnamespaceSVG, ɵɵnextContext, ɵɵpipe, ɵɵpipeBind1, ɵɵpipeBind2, ɵɵpipeBind3, ɵɵpipeBind4, ɵɵpipeBindV, ɵɵprojection, ɵɵprojectionDef, ɵɵproperty, ɵɵpropertyInterpolate, ɵɵpropertyInterpolate1, ɵɵpropertyInterpolate2, ɵɵpropertyInterpolate3, ɵɵpropertyInterpolate4, ɵɵpropertyInterpolate5, ɵɵpropertyInterpolate6, ɵɵpropertyInterpolate7, ɵɵpropertyInterpolate8, ɵɵpropertyInterpolateV, ɵɵpureFunction0, ɵɵpureFunction1, ɵɵpureFunction2, ɵɵpureFunction3, ɵɵpureFunction4, ɵɵpureFunction5, ɵɵpureFunction6, ɵɵpureFunction7, ɵɵpureFunction8, ɵɵpureFunctionV, ɵɵqueryRefresh, ɵɵreference, ɵɵresolveBody, ɵɵresolveDocument, ɵɵresolveWindow, ɵɵrestoreView, ɵɵsanitizeHtml, ɵɵsanitizeResourceUrl, ɵɵsanitizeScript, ɵɵsanitizeStyle, ɵɵsanitizeUrl, ɵɵsanitizeUrlOrResourceUrl, ɵɵselect, ɵɵsetComponentScope, ɵɵsetNgModuleScope, ɵɵstaticContentQuery, ɵɵstaticViewQuery, ɵɵstyleMap, ɵɵstyleMapInterpolate1, ɵɵstyleMapInterpolate2, ɵɵstyleMapInterpolate3, ɵɵstyleMapInterpolate4, ɵɵstyleMapInterpolate5, ɵɵstyleMapInterpolate6, ɵɵstyleMapInterpolate7, ɵɵstyleMapInterpolate8, ɵɵstyleMapInterpolateV, ɵɵstyleProp, ɵɵstylePropInterpolate1, ɵɵstylePropInterpolate2, ɵɵstylePropInterpolate3, ɵɵstylePropInterpolate4, ɵɵstylePropInterpolate5, ɵɵstylePropInterpolate6, ɵɵstylePropInterpolate7, ɵɵstylePropInterpolate8, ɵɵstylePropInterpolateV, ɵɵstyleSanitizer, ɵɵtemplate, ɵɵtemplateRefExtractor, ɵɵtext, ɵɵtextInterpolate, ɵɵtextInterpolate1, ɵɵtextInterpolate2, ɵɵtextInterpolate3, ɵɵtextInterpolate4, ɵɵtextInterpolate5, ɵɵtextInterpolate6, ɵɵtextInterpolate7, ɵɵtextInterpolate8, ɵɵtextInterpolateV, ɵɵupdateSyntheticHostBinding, ɵɵviewQuery };\n\n//# sourceMappingURL=core.js.map","\r\nexport interface BasicShape {\r\n    name: string;\r\n    type: string;\r\n    options?: {[k: string]: any};\r\n}\r\n\r\nexport const defaultShapes: BasicShape[] = [\r\n    {\r\n        name: 'circle',\r\n        type: 'Circle',\r\n    },\r\n    {\r\n        name: 'rectangle',\r\n        type: 'Rect',\r\n        options: {\r\n            lockUniScaling: false,\r\n        }\r\n    },\r\n    {\r\n        name: 'triangle',\r\n        type: 'Triangle',\r\n    },\r\n    {\r\n        name: 'ellipse',\r\n        type: 'Ellipse',\r\n        options: {\r\n            lockUniScaling: false,\r\n        },\r\n    },\r\n    {\r\n        name: 'Arrow #1',\r\n        type: 'Path',\r\n        options: {\r\n            path: 'M 294.9 16.4 l 15.7 42.2 c -171.4 70.3 -294 242.3 -289.1 437.4 l 14.7 -1 c 9.1 -0.6 18.1 -1.2 27.1 -1.9 l 14.7 -1 c -4.3 -170.1 102.5 -320 252 -381.3 l 15.7 42.2 c 34.7 -40.5 83.1 -76.6 144.8 -99.8 c -58.1 -26.2 -124.9 -39.6 -195.6 -36.8 z'\r\n        }\r\n    },\r\n    {\r\n        name: 'Arrow #2',\r\n        type: 'Path',\r\n        options: {\r\n            path: 'M 16 248.4 v 14.9 h 447.5 l -93.2 82.5 l 11.9 10.5 l 113.8 -100.2 l -113.6 -100.4 l -11.8 10.5 l 92.9 82.2 z',\r\n        }\r\n    },\r\n    {\r\n        name: 'Arrow #3',\r\n        type: 'Path',\r\n        options: {\r\n            path: 'M 496 256 l -118.6 -66 v 40.8 h -361.4 v 50.4 h 361.4 v 40.8 l 118.6 -66 z',\r\n        }\r\n    },\r\n    {\r\n        name: 'Line',\r\n        type: 'Path',\r\n        options: {\r\n            path: 'M 16 256 h 480',\r\n            strokeWidth: 10,\r\n            stroke: '#000'\r\n        }\r\n    },\r\n    {\r\n        name: 'Star',\r\n        type: 'Path',\r\n        options: {\r\n            path: 'M 256 406.3 l 148.3 78 l -28.3 -165.2 l 120 -117 l -165.8 -24.1 l -74.2 -150.3 l -74.2 150.3 l -165.8 24.1 l 120 117 l -28.3 165.2 z',\r\n        }\r\n    },\r\n    {\r\n        name: 'Polygon',\r\n        type: 'Path',\r\n        options: {\r\n            path: 'M 256 19.6 l 156.6 57.1 l 83.4 144.3 l -28.9 164.2 l -127.7 107.2 h -166.8 l -127.7 -107.2 l -28.9 -164.2 l 83.4 -144.3 z',\r\n        }\r\n    },\r\n    {\r\n        name: 'Badge',\r\n        type: 'Path',\r\n        options: {\r\n            path: 'M 257.3 16.2 s -148 58.2 -204.4 81.4 c 0 75.7 -16.8 303.5 204.4 398.2 c 218.7 -94.6 201.9 -322.4 201.9 -398.2 c -62.1 -23.6 -201.9 -81.4 -201.9 -81.4 z',\r\n        }\r\n    },\r\n];\r\n","export const BrushTypes = [\r\n    'PencilBrush',\r\n    'VLineBrush',\r\n    'HLineBrush',\r\n    'CircleBrush',\r\n    'SquareBrush',\r\n    'SprayBrush',\r\n];\r\n\r\nexport const BrushSizes = [1, 8, 15, 20, 25];\r\n","export enum EditorMode {\r\n    INLINE = 'inline',\r\n    OVERLAY = 'overlay',\r\n}\r\n","export enum EditorTheme {\r\n    DARK = 'dark',\r\n    LIGHT = 'light',\r\n}","export enum NavPosition {\r\n    TOP = 'top',\r\n    BOTTOM = 'bottom',\r\n    NONE = 'none',\r\n}\r\n","export enum DrawerName {\n    NAVIGATION = 'navigation',\n    FILTER = 'filter',\n    RESIZE = 'resize',\n    CROP = 'crop',\n    TRANSFORM = 'transform',\n    DRAW = 'draw',\n    TEXT = 'text',\n    SHAPES = 'shapes',\n    STICKERS = 'stickers',\n    FRAME = 'frame',\n    CORNERS = 'corners',\n    BACKGROUND = 'background',\n    MERGE = 'merge',\n    OBJECT_SETTINGS = 'objectSettings',\n}\n","export const defaultObjectProps = {\r\n    fill: 'rgb(30, 139, 195)',\r\n    opacity: 1,\r\n    backgroundColor: null,\r\n    strokeWidth: 0.1,\r\n    stroke: '#000',\r\n    shadow: {\r\n        color: '#000',\r\n        blur: 3,\r\n        offsetX: -1,\r\n        offsetY: 0,\r\n    },\r\n};\r\n","import {InjectionToken} from '@angular/core';\r\nimport {Frame} from './tools/frame/frame';\r\nimport {BasicShape, defaultShapes} from './tools/shapes/default-shapes';\r\nimport {defaultStickers, StickerCategory} from './tools/shapes/default-stickers';\r\nimport {BrushSizes, BrushTypes} from './tools/draw/draw-defaults';\r\nimport {FontItem} from '../image-editor-ui/toolbar-controls/widgets/google-fonts-panel/font-item';\r\nimport {EditorMode} from './enums/editor-mode.enum';\r\nimport {EditorTheme} from './enums/editor-theme.enum';\r\nimport {NavPosition} from './enums/control-positions.enum';\r\nimport {DrawerName} from '../image-editor-ui/toolbar-controls/drawers/drawer-name.enum';\r\nimport {defaultObjectProps} from './objects/default-object-props';\r\nimport {SampleImage} from '../image-editor-ui/panels/open-sample-image-panel/sample-image';\r\n\r\nexport const MERGED_CONFIG = new InjectionToken<PixieConfig>('MERGED_CONFIG');\r\n\r\nexport const PIXIE_VERSION = '2.2.2';\r\n\r\nexport interface NavItem {\r\n    /**\r\n     * unique identifier for this navigation item.\r\n     */\r\n    name?: string;\r\n\r\n    /**\r\n     * Human readable name for this navigation item.\r\n     */\r\n    display_name?: string;\r\n\r\n    /**\r\n     * Action to perform when this nav item is clicked. Either name of panel to open or custom function.\r\n     */\r\n    action?: Function|DrawerName;\r\n\r\n    /**\r\n     * Name or url of icon for this navigation item.\r\n     */\r\n    icon?: string;\r\n\r\n    /**\r\n     * Whether this item is navigation button or separator.\r\n     */\r\n    type?: 'button'|'separator';\r\n}\r\n\r\nexport type ToolbarItemAction = Function|'openBackgroundImage'|'openOverlayImage'|'openStateFile'|'exportImage'|'toggleHistory'|'toggleObjects'|'closeEditor';\r\n\r\nexport interface ToolbarItem {\r\n    /**\r\n     * Whether this item should be shown when editor is in compact mode.\r\n     * https://support.vebto.com/help-center/articles/10/13/51/interface#compact-mode\r\n     */\r\n    showInCompactMode?: boolean;\r\n\r\n    /**\r\n     * Whether this item should only be shown when editor is in compact mode.\r\n     * https://support.vebto.com/help-center/articles/10/13/51/interface#compact-mode\r\n     */\r\n    compactModeOnly?: boolean;\r\n\r\n    /**\r\n     * Type for this toolbar item.\r\n     */\r\n    type: 'button'|'zoomWidget'|'undoWidget'|'panelNameWidget'|'image';\r\n\r\n    /**\r\n     * Url for image when toolbar item type is set to \"image\".\r\n     */\r\n    src?: string;\r\n\r\n    /**\r\n     * Icon that should be shown for this item.\r\n     */\r\n    icon?: string;\r\n\r\n    /**\r\n     * Text that should be shown for this item.\r\n     */\r\n    text?: string;\r\n\r\n    /**\r\n     * Action that should be performed when user clicks on this item.\r\n     */\r\n    action?: ToolbarItemAction;\r\n\r\n    /**\r\n     * List of dropdown menu items that will be shown when this button is clicked.\r\n     */\r\n    dropdownItems?: {label: string, action: ToolbarItemAction}[];\r\n\r\n    /**\r\n     * Left margin for this toolbar in pixels.\r\n     */\r\n    marginLeft?: string;\r\n\r\n    /**\r\n     * Right margin for this toolbar in pixels.\r\n     */\r\n    marginRight?: string;\r\n\r\n    /**\r\n     * Condition that must be true for this item to show. Accepts config key and value.\r\n     * For example: {'tools.zoom.allowUserZoom': true}\r\n     */\r\n    condition?: {[key: string]: string|boolean};\r\n}\r\n\r\nexport interface ObjectDefaults {\r\n    /**\r\n     * Whether object resize handles should be solid or not.\r\n     */\r\n    transparentCorners?: boolean;\r\n\r\n    /**\r\n     * Whether object can be resized via corner handle (will change object aspect ratio).\r\n     */\r\n    lockUniScaling?: boolean;\r\n\r\n    /**\r\n     * Whether resize handles should be hidden when object is being dragged. 0 to 1.\r\n     */\r\n    borderOpacityWhenMoving?: number;\r\n\r\n    /**\r\n     * Whether resize handles should be round or square.\r\n     */\r\n    cornerStyle?: 'circle'|'rect';\r\n\r\n    /**\r\n     * Color for resize handles.\r\n     */\r\n    cornerColor?: string;\r\n\r\n    /**\r\n     * Color for border of resize handles.\r\n     */\r\n    cornerStrokeColor?: string;\r\n\r\n    /**\r\n     * Size for border of resize handles.\r\n     */\r\n    cornerSize?: number;\r\n\r\n    /**\r\n     * Object border color.\r\n     */\r\n    stroke?: string;\r\n\r\n    /**\r\n     * Object border width.\r\n     */\r\n    strokeWidth?: number;\r\n\r\n    /**\r\n     * Default object background color.\r\n     */\r\n    fill?: string;\r\n\r\n    /**\r\n     * Default align for text added via pixie.\r\n     */\r\n    textAlign?: 'initial'|'left'|'center'|'right'|'justify'|'justify-left'|'justify-center'|'justify-right';\r\n\r\n    /**\r\n     * Whether text should have an underline.\r\n     */\r\n    underline?: false;\r\n\r\n    /**\r\n     * Whether text should have a strikethrough line.\r\n     */\r\n    linethrough?: false;\r\n\r\n    /**\r\n     * Default font style for text added via pixie.\r\n     */\r\n    fontStyle?: 'normal'|'italic'|'oblique';\r\n\r\n    /**\r\n     * Default font family for text added via pixie.\r\n     */\r\n    fontFamily?: 'Times New Roman';\r\n\r\n    /**\r\n     * Default font weight text added via pixie.\r\n     */\r\n    fontWeight?: 'bold'|'normal'|100|200|300|400|500|600|700|800|900;\r\n}\r\n\r\nexport interface PixieConfig {\r\n    selector?: string;\r\n\r\n    /**\r\n     * Image or pixie state that should be loaded into editor with initial load.\r\n     * Will accept url or image/state data.\r\n    */\r\n    image?: string|HTMLImageElement;\r\n\r\n    /**\r\n     * Whether images loaded into pixie will be hosted on another domain from where pixie is hosted.\r\n     */\r\n    crossOrigin?: boolean;\r\n\r\n    /**\r\n     * Opens new empty canvas at specified size. Alternative to image or pixie state.\r\n     */\r\n    blankCanvasSize?: {width: number; height: number};\r\n\r\n    /**\r\n     * Adds specified text as watermark on downloaded or exported image.\r\n     */\r\n    watermarkText?: string;\r\n\r\n    /**\r\n     * Maximum memory pixie will use when applying filters.\r\n     * https://support.vebto.com/help-center/articles/10/45/164/filter-texture-size\r\n     */\r\n    textureSize?: number;\r\n\r\n    /**\r\n     * From where should pixie assets be loaded.\r\n     * https://support.vebto.com/help-center/articles/10/45/150/specifying-base-url\r\n     */\r\n    baseUrl?: string;\r\n\r\n    ui?: {\r\n        /**\r\n         * Whether pixie should be visible initially.\r\n         */\r\n        visible: boolean;\r\n\r\n        /**\r\n         * Pixie theme that should be used by default.\r\n         */\r\n        defaultTheme: string,\r\n\r\n        /**\r\n         * Whether inline or overlay mode should be used.\r\n         */\r\n        mode: EditorMode,\r\n\r\n        /**\r\n         * Whether user should be able to close editor while in overlay mode.\r\n         */\r\n        allowEditorClose?: boolean,\r\n\r\n        /**\r\n         * Width of pixie editor in pixels or percentages.\r\n         */\r\n        width?: string,\r\n\r\n        /**\r\n         * Height of pixie editor in pixels or percentages.\r\n         */\r\n        height?: string,\r\n\r\n        /**\r\n         * Whether compact mode should be used initially.\r\n         * Compact mode will activate automatically if there is not enough screen space.\r\n         */\r\n        compact?: boolean,\r\n\r\n        /**\r\n         * When enabled, keyboard on mobile devices will not push pixie up on the screen.\r\n         */\r\n        ignoreMobileKeyboard?: boolean;\r\n\r\n        /**\r\n         * When user clicks on \"save\" button, show panel where image format, name and quality can be selected before download.\r\n         */\r\n        showExportPanel?: boolean,\r\n\r\n        /**\r\n         * Preset colors that will be shown in pixie color widgets.\r\n         */\r\n        colorPresets?: {\r\n            /**\r\n             * Lists of colors in hex or rgba format.\r\n             */\r\n            items: string[],\r\n\r\n            /**\r\n             * Whether default pixie colors should be overwritten with specified ones.\r\n             */\r\n            replaceDefault: boolean,\r\n        },\r\n\r\n        /**\r\n         * Navigation bar configuration.\r\n         */\r\n        nav: {\r\n            /**\r\n             * At which predefined position should navigation bar be displayed.\r\n             */\r\n            position: NavPosition,\r\n\r\n            /**\r\n             * Whether specified navigation items should replace default ones.\r\n             */\r\n            replaceDefault?: boolean,\r\n\r\n            /**\r\n             * What Items should be shown in the navigation bar.\r\n             */\r\n            items: NavItem[],\r\n        },\r\n\r\n        /**\r\n         * If not image or state is loaded into pixie, this panel can be opened to allow\r\n         * user to select from sample images, upload new image, or enter blank canvas size.\r\n         */\r\n        openImageDialog?: {\r\n            /**\r\n             * Whether this panel should be shown.\r\n             */\r\n            show: boolean,\r\n\r\n            /**\r\n             * Sample images that user should be able to pick from.\r\n             */\r\n            sampleImages?: SampleImage[],\r\n        },\r\n\r\n        /**\r\n         * Toolbar appearance and items configuration.\r\n         */\r\n        toolbar?: {\r\n            /**\r\n             * Whether toolbar should be visible.\r\n             */\r\n            hide?: boolean,\r\n\r\n            /**\r\n             * What items should appear on the left side of toolbar.\r\n             */\r\n            leftItems?: ToolbarItem[];\r\n\r\n            /**\r\n             * Which items should appear in toolbar center.\r\n             */\r\n            centerItems?: ToolbarItem[];\r\n\r\n            /**\r\n             * Which items should appear on the right side of toolbar.\r\n             */\r\n            rightItems?: ToolbarItem[];\r\n        },\r\n    };\r\n\r\n    /**\r\n     * Localization configuration.\r\n     */\r\n    languages?: {\r\n        /**\r\n         * Currently active language for the editor.\r\n         */\r\n        active: string,\r\n\r\n        /**\r\n         * List of custom language objects.\r\n         */\r\n        custom?: {[key: string]: {[key: string]: string}[]},\r\n    };\r\n\r\n    /**\r\n     * On \"save\" button click pixie will automatically send image data to specified url.\r\n     */\r\n    saveUrl?: string;\r\n\r\n    /**\r\n     * Called when image is saved via save button, export panel or pixie API.\r\n     */\r\n    onSave?: Function;\r\n\r\n    /**\r\n     * Called when pixie editor is fully loaded.\r\n     */\r\n    onLoad?: Function;\r\n\r\n    /**\r\n     * Called when editor is closed (via pixie API or close button click)\r\n     */\r\n    onClose?: Function;\r\n\r\n    /**\r\n     * Called when editor is opened (via pixie API or custom open button)\r\n     */\r\n    onOpen?: Function;\r\n\r\n    /**\r\n     * Called whenever a new file (image or state) is opened via file picker.\r\n     */\r\n    onFileOpen?: Function;\r\n\r\n    /**\r\n     * Called when main image is loaded (or changed) in the editor.\r\n     */\r\n    onMainImageLoaded?: Function;\r\n\r\n    /**\r\n     * Google Fonts API key for font selector.\r\n     */\r\n    googleFontsApiKey?: string;\r\n\r\n    tools?: {\r\n        /**\r\n         * Filter tool configuration.\r\n         */\r\n        filter?: {\r\n            /**\r\n             * Whether specified filters should replace default ones.\r\n             */\r\n            replaceDefault?: boolean,\r\n\r\n            /**\r\n             * Filters that should be shown in filter panel.\r\n             */\r\n            items: string[],\r\n        },\r\n\r\n        /**\r\n         * Resize tool configuration.\r\n         */\r\n        resize?: {\r\n            /**\r\n             * Minimum width user should be able to resize image to.\r\n             */\r\n            minWidth?: number;\r\n\r\n            /**\r\n             * Maximum width user should be able to resize image to.\r\n             */\r\n            maxWidth?: number;\r\n\r\n            /**\r\n             * Minimum height user should be able to resize image to.\r\n             */\r\n            minHeight?: number;\r\n\r\n            /**\r\n             * Maximum height user should be able to resize image to.\r\n             */\r\n            maxHeight?: number;\r\n        }\r\n\r\n        crop?: {\r\n            /**\r\n             * Initial aspect ratio for cropzone.\r\n             */\r\n            defaultRatio?: string,\r\n\r\n            /**\r\n             * Whether user should be able to manually enter cropzone width and height.\r\n             */\r\n            hideCustomControls?: boolean,\r\n\r\n            /**\r\n             * Whether built-in cropzone aspect ratios should be overwritten with specified ones.\r\n             */\r\n            replaceDefaultPresets?: boolean,\r\n\r\n            /**\r\n             * Custom cropzone aspect ratios.\r\n             */\r\n            presets: {ratio: string, name: string}[],\r\n\r\n            /**\r\n             * Cropzone appearance and functionality configuration.\r\n             */\r\n            cropZone?: {\r\n                /**\r\n                 * Whether cropzone should be selectable by clicking on it.\r\n                 */\r\n                selectable: boolean,\r\n\r\n                /**\r\n                 * Whether cropzone can be moved horizontally.\r\n                 */\r\n                lockMovementX: boolean,\r\n\r\n                /**\r\n                 * Whether cropzone can be moved vertically.\r\n                 */\r\n                lockMovementY: boolean,\r\n\r\n                /**\r\n                 * Whether cropzone's width can changed by dragging its left or right side.\r\n                 */\r\n                lockScalingX: boolean,\r\n\r\n                /**\r\n                 * Whether cropzone's height can changed by dragging its top or bottom.\r\n                 */\r\n                lockScalingY: boolean,\r\n\r\n                /**\r\n                 * Whether cropzone's size can be changed by dragging its corners.\r\n                 */\r\n                lockUniScaling: boolean,\r\n\r\n                /**\r\n                 * Whether corner handles for changing cropzone size are visible.\r\n                 */\r\n                hasControls: boolean,\r\n\r\n                /**\r\n                 * Whether cropzone borders are visible.\r\n                 */\r\n                hasBorders: boolean,\r\n            },\r\n        },\r\n\r\n        /**\r\n         * Draw tool configuration.\r\n         */\r\n        draw: {\r\n            /**\r\n             * Whether default brush sizes should be replaced.\r\n             */\r\n            replaceDefaultBrushSizes?: boolean,\r\n\r\n            /**\r\n             * Whether default brush types should be replaced.\r\n             */\r\n            replaceDefaultBrushTypes?: boolean,\r\n\r\n            /**\r\n             * Brush sizes that user should be able to pick from.\r\n             */\r\n            brushSizes: number[],\r\n\r\n            /**\r\n             * Brush types that user should be able to pick from.\r\n             */\r\n            brushTypes: string[],\r\n        }\r\n        text?: {\r\n            /**\r\n             * Whether default fonts should be replaced with specified custom ones.\r\n             */\r\n            replaceDefaultItems?: boolean,\r\n\r\n            /**\r\n             * Text that should be added by default when clicking on \"add text\" button.\r\n             */\r\n            defaultText?: string,\r\n\r\n            /**\r\n             * Initially selected category in font picker.\r\n             */\r\n            defaultCategory?: string,\r\n\r\n            /**\r\n             * Custom fonts that should be shown in font picker.\r\n             */\r\n            items?: FontItem[],\r\n        }\r\n\r\n        frame?: {\r\n            /**\r\n             * Whether default frames should be replaced with specified custom ones.\r\n             */\r\n            replaceDefault?: boolean,\r\n\r\n            /**\r\n             * Custom frames that user should be able to add to the image.\r\n             */\r\n            items?: Frame[],\r\n        },\r\n\r\n        shapes?: {\r\n            /**\r\n             * Whether default shapes should be replaced with specified custom ones.\r\n             */\r\n            replaceDefault?: boolean,\r\n\r\n            /**\r\n             * Custom shapes that user should be able to add to the image.\r\n             */\r\n            items?: BasicShape[],\r\n        },\r\n\r\n        stickers?: {\r\n            /**\r\n             * Whether default sticker categories should be replaced with specified custom ones.\r\n             */\r\n            replaceDefault?: boolean,\r\n\r\n            /**\r\n             * Custom sticker categories and their stickers that should appear in stickers panel.\r\n             */\r\n            items?: StickerCategory[],\r\n        },\r\n\r\n        import?: {\r\n            /**\r\n             * File extensions user should be able to select when opening new image.\r\n             */\r\n            validExtensions?: string[],\r\n\r\n            /**\r\n             * Maximum file size when opening new image or state file.\r\n             */\r\n            maxFileSize?: number; // in bytes\r\n\r\n            /**\r\n             * Whether new image overlays should be automatically resized to fit available canvas space.\r\n             */\r\n            fitOverlayToScreen?: boolean;\r\n\r\n            /**\r\n             * When user drags image from desktop onto pixie, should that image be opened as background or overlay.\r\n             */\r\n            openDroppedImageAsBackground?: boolean;\r\n        },\r\n\r\n        export?: {\r\n            /**\r\n             * Which format should images be downloaded in by default.\r\n             */\r\n            defaultFormat: 'png'|'jpeg'|'json',\r\n\r\n            /**\r\n             * What compression level should be applied to downloaded images. 0 to 1.\r\n             */\r\n            defaultQuality: number,\r\n\r\n            /**\r\n             * Default file name for downloaded images.\r\n             */\r\n            defaultName: string,\r\n        },\r\n\r\n        zoom?: {\r\n            /**\r\n             * Whether user should be able to manually zoom in and out via toolbar buttons.\r\n             */\r\n            allowUserZoom?: boolean;\r\n\r\n            /**\r\n             * Whether new image should be automatically zoomed so it fits into available screen space.\r\n             */\r\n            fitImageToScreen?: boolean;\r\n\r\n            /**\r\n             * Whether user should be able to zoom out below original image size.\r\n             */\r\n            disableMinimumZoom?: boolean;\r\n        }\r\n    };\r\n\r\n    /**\r\n     * Default styles and behaviour for various objects in pixie.\r\n     */\r\n    objectDefaults?: {\r\n        /**\r\n         * Styles and behaviour for all objects.\r\n         */\r\n        global?: ObjectDefaults;\r\n\r\n        /**\r\n         * Styles and behaviour for new basic shapes (circle, triangle etc.)\r\n         */\r\n        basicShape?: ObjectDefaults;\r\n\r\n        /**\r\n         * Styles and behaviour for new stickers.\r\n         */\r\n        sticker?: ObjectDefaults;\r\n\r\n        /**\r\n         * Styles and behaviour for text added to image via pixie.\r\n         */\r\n        text?: ObjectDefaults;\r\n    };\r\n}\r\n\r\nexport const DEFAULT_CONFIG: PixieConfig = {\r\n    selector: 'pixie-editor',\r\n    textureSize: 4096,\r\n    ui: {\r\n        visible: true,\r\n        mode: EditorMode.INLINE,\r\n        defaultTheme: EditorTheme.LIGHT,\r\n        ignoreMobileKeyboard: true,\r\n        allowEditorClose: true,\r\n        toolbar: {\r\n            leftItems: [\r\n                {\r\n                    type: 'button',\r\n                    icon: 'photo-library',\r\n                    text: 'Open',\r\n                    showInCompactMode: true,\r\n                    dropdownItems: [\r\n                        {action: 'openBackgroundImage', label: 'Background Image'},\r\n                        {action: 'openOverlayImage', label: 'Overlay Image'},\r\n                        {action: 'openStateFile', label: 'Editor Project File'},\r\n                    ]\r\n                },\r\n                {\r\n                    type: 'button',\r\n                    icon: 'file-download',\r\n                    text: 'Save',\r\n                    action: 'exportImage',\r\n                }\r\n            ],\r\n            centerItems: [\r\n                {\r\n                    type: 'zoomWidget',\r\n                    condition: {'tools.zoom.allowUserZoom': true},\r\n                },\r\n                {\r\n                    type: 'panelNameWidget',\r\n                    compactModeOnly: true,\r\n                }\r\n            ],\r\n            rightItems: [\r\n                {\r\n                    type: 'undoWidget'\r\n                },\r\n                {\r\n                    type: 'button',\r\n                    icon: 'history',\r\n                    action: 'toggleHistory',\r\n                    marginLeft: '40px',\r\n                },\r\n                {\r\n                    type: 'button',\r\n                    icon: 'layers',\r\n                    action: 'toggleObjects',\r\n                },\r\n                {\r\n                    type: 'button',\r\n                    icon: 'close',\r\n                    action: 'closeEditor',\r\n                    marginLeft: '25px',\r\n                    condition: {'ui.mode': 'overlay'},\r\n                },\r\n                {\r\n                    type: 'button',\r\n                    icon: 'file-download',\r\n                    action: 'exportImage',\r\n                    compactModeOnly: true,\r\n                }\r\n            ]\r\n        },\r\n        nav: {\r\n            position: NavPosition.TOP,\r\n            replaceDefault: false,\r\n            items: [\r\n                {name: 'filter', icon: 'filter-custom', action: DrawerName.FILTER},\r\n                {type: 'separator'},\r\n                {name: 'resize', icon: 'resize-custom', action: DrawerName.RESIZE},\r\n                {name: 'crop', icon: 'crop-custom', action: DrawerName.CROP},\r\n                {name: 'transform', icon: 'transform-custom', action: DrawerName.TRANSFORM},\r\n                {type: 'separator'},\r\n                {name: 'draw', icon: 'pencil-custom', action: DrawerName.DRAW},\r\n                {name: 'text', icon: 'text-box-custom', action: DrawerName.TEXT},\r\n                {name: 'shapes', icon: 'polygon-custom', action: DrawerName.SHAPES},\r\n                {name: 'stickers', icon: 'sticker-custom', action: DrawerName.STICKERS},\r\n                {name: 'frame', icon: 'frame-custom', action: DrawerName.FRAME},\r\n                {type: 'separator'},\r\n                {name: 'corners', icon: 'rounded-corner-custom', action: DrawerName.CORNERS},\r\n                {name: 'background', icon: 'background-custom', action: DrawerName.BACKGROUND},\r\n                {name: 'merge', icon: 'merge-custom', action: DrawerName.MERGE},\r\n            ]\r\n        },\r\n        openImageDialog: {\r\n            show: true,\r\n            sampleImages: [\r\n                {\r\n                    url: 'images/samples/sample1.jpg',\r\n                    thumbnail: 'images/samples/sample1_thumbnail.jpg',\r\n                },\r\n                {\r\n                    url: 'images/samples/sample2.jpg',\r\n                    thumbnail: 'images/samples/sample2_thumbnail.jpg',\r\n                },\r\n                {\r\n                    url: 'images/samples/sample3.jpg',\r\n                    thumbnail: 'images/samples/sample3_thumbnail.jpg',\r\n                },\r\n            ]\r\n        },\r\n        colorPresets: {\r\n            replaceDefault: false,\r\n            items: [\r\n                'rgb(0,0,0)',\r\n                'rgb(255, 255, 255)',\r\n                'rgb(242, 38, 19)',\r\n                'rgb(249, 105, 14)',\r\n                'rgb(253, 227, 167)',\r\n                'rgb(4, 147, 114)',\r\n                'rgb(30, 139, 195)',\r\n                'rgb(142, 68, 173)',\r\n            ],\r\n        }\r\n    },\r\n    languages: {\r\n        active: 'default',\r\n    },\r\n    googleFontsApiKey: 'AIzaSyDOrI6VJiMbR6XLvlp3CdCPZj1T2PzVkKs',\r\n    objectDefaults: {\r\n        global: {\r\n            transparentCorners: false,\r\n            borderOpacityWhenMoving: 1,\r\n            cornerStyle: 'circle',\r\n            cornerColor: '#ccc',\r\n            cornerStrokeColor: '#fff',\r\n            cornerSize: 16,\r\n            strokeWidth: 0.05,\r\n            lockUniScaling: true,\r\n            ...defaultObjectProps,\r\n        },\r\n        text: {\r\n            textAlign: 'initial',\r\n            underline: false,\r\n            linethrough: false,\r\n            fontStyle: 'normal',\r\n            fontFamily: 'Times New Roman',\r\n            fontWeight: 400,\r\n        }\r\n    },\r\n    tools: {\r\n        filter: {\r\n            replaceDefault: false,\r\n            items: [\r\n                'grayscale',\r\n                'blackWhite',\r\n                'sharpen',\r\n                'invert',\r\n                'vintage',\r\n                'polaroid',\r\n                'kodachrome',\r\n                'technicolor',\r\n                'brownie',\r\n                'sepia',\r\n                'removeColor',\r\n                'brightness',\r\n                'gamma',\r\n                'noise',\r\n                'pixelate',\r\n                'blur',\r\n                'emboss',\r\n                'blendColor',\r\n            ]\r\n        },\r\n        zoom: {\r\n            allowUserZoom: true,\r\n            fitImageToScreen: true,\r\n        },\r\n        crop: {\r\n            replaceDefaultPresets: false,\r\n            hideCustomControls: false,\r\n            defaultRatio: '16:9',\r\n            presets: [\r\n                {ratio: '3:2', name: '3:2'},\r\n                {ratio: '5:3', name: '5:3'},\r\n                {ratio: '4:3', name: '4:3'},\r\n                {ratio: '5:4', name: '5:4'},\r\n                {ratio: '6:4', name: '6:4'},\r\n                {ratio: '7:5', name: '7:5'},\r\n                {ratio: '10:8', name: '10:8'},\r\n                {ratio: '16:9', name: '16:9'},\r\n            ]\r\n        },\r\n        text: {\r\n            defaultCategory: 'handwriting',\r\n            defaultText: 'Double click to edit',\r\n        },\r\n        draw: {\r\n            brushSizes: BrushSizes,\r\n            brushTypes: BrushTypes,\r\n        },\r\n        shapes: {\r\n            replaceDefault: false,\r\n            items: defaultShapes.slice(),\r\n        },\r\n        stickers: {\r\n            replaceDefault: false,\r\n            items: defaultStickers,\r\n        },\r\n        import: {\r\n            validExtensions: ['png', 'jpg', 'jpeg', 'svg', 'json', 'gif'],\r\n            fitOverlayToScreen: true,\r\n            openDroppedImageAsBackground: false,\r\n        },\r\n        export: {\r\n            defaultFormat: 'png',\r\n            defaultQuality: 0.8,\r\n            defaultName: 'image',\r\n        },\r\n        frame: {\r\n            replaceDefault: false,\r\n            items: [\r\n                {\r\n                    name: 'basic',\r\n                    mode: 'basic',\r\n                    size: {\r\n                        min: 1,\r\n                        max: 35,\r\n                        default: 10,\r\n                    }\r\n                },\r\n                {\r\n                    name: 'pine',\r\n                    mode: 'stretch',\r\n                    size: {\r\n                        min: 1,\r\n                        max: 35,\r\n                        default: 15,\r\n                    }\r\n                },\r\n                {\r\n                    name: 'oak',\r\n                    mode: 'stretch',\r\n                    size: {\r\n                        min: 1,\r\n                        max: 35,\r\n                        default: 15,\r\n                    }\r\n                },\r\n                {\r\n                    name: 'rainbow',\r\n                    mode: 'stretch',\r\n                    size: {\r\n                        min: 1,\r\n                        max: 35,\r\n                        default: 15,\r\n                    }\r\n                },\r\n                {\r\n                    name: 'grunge1',\r\n                    display_name: 'grunge #1',\r\n                    mode: 'stretch',\r\n                    size: {\r\n                        min: 1,\r\n                        max: 35,\r\n                        default: 15,\r\n                    }\r\n                },\r\n                {\r\n                    name: 'grunge2',\r\n                    display_name: 'grunge #2',\r\n                    mode: 'stretch',\r\n                    size: {\r\n                        min: 1,\r\n                        max: 35,\r\n                        default: 20,\r\n                    }\r\n                },\r\n                {\r\n                    name: 'ebony',\r\n                    mode: 'stretch',\r\n                    size: {\r\n                        min: 1,\r\n                        max: 35,\r\n                        default: 15,\r\n                    }\r\n                },\r\n                {\r\n                    name: 'art1',\r\n                    display_name: 'Art #1',\r\n                    mode: 'repeat',\r\n                    size: {\r\n                        min: 10,\r\n                        max: 70,\r\n                        default: 55,\r\n                    },\r\n                },\r\n                {\r\n                    name: 'art2',\r\n                    display_name: 'Art #2',\r\n                    mode: 'repeat',\r\n                    size: {\r\n                        min: 10,\r\n                        max: 70,\r\n                        default: 55,\r\n                    },\r\n                }\r\n            ]\r\n        }\r\n    }\r\n};\r\n","import {emoticonsList} from './emoticons';\r\n\r\nexport interface StickerCategory {\r\n    name: string;\r\n    items?: number;\r\n    list?: string[];\r\n    type: 'svg' | 'png';\r\n    thumbnailUrl?: string;\r\n    darkBg?: boolean;\r\n}\r\n\r\nexport const defaultStickers: StickerCategory[] = [\r\n    {name: 'emoticons', list: emoticonsList, type: 'svg', thumbnailUrl: 'images/ui/emoticon.svg'},\r\n    {name: 'doodles', items: 100, type: 'svg', thumbnailUrl: 'images/ui/doodles.svg'},\r\n    {name: 'landmarks', items: 100, type: 'svg', thumbnailUrl: 'images/ui/landmark.svg'},\r\n    {name: 'stars', items: 6, type: 'png', darkBg: true, thumbnailUrl: 'images/ui/star.svg'},\r\n    {name: 'clouds', items: 15, type: 'png', darkBg: true, thumbnailUrl: 'images/ui/clouds.svg'},\r\n    {name: 'bubbles', items: 104, type: 'png', thumbnailUrl: 'images/ui/speech-bubble.svg'},\r\n    {name: 'transportation', items: 22, type: 'svg', thumbnailUrl: 'images/ui/transportation.svg'},\r\n    {name: 'beach', items: 22, type: 'svg', thumbnailUrl: 'images/ui/beach.svg'},\r\n];\r\n","export const emoticonsList = ['afro-1','afro','agent','alien-1','alien','angel','angry-1','angry-2','angry-3','angry-4','angry-5','angry','arguing','arrogant','asian-1','asian','avatar','baby-1','baby-2','baby','bully','burglar','businessman','cheeky-1','cheeky','clown','confused-1','confused-2','confused-3','confused','creepy','crying-1','crying-2','crying-3','crying','dazed-1','dazed-2','dazed-3','dazed','dead-1','dead-2','dead-3','dead-4','dead-5','dead-6','dead','desperate-1','desperate','detective','dissapointment','doctor','drunk','dumb','emo-1','emo-2','emo','emoticon','evil','faint-1','faint','flirt-1','flirt-2','flirt','flirty','gangster','geek-1','geek','gentleman-1','gentleman-2','gentleman-3','gentleman-4','gentleman','ginger','girl-1','girl','goofy-1','goofy-2','goofy-3','goofy-4','goofy','grubby-1','grubby','happy-1','happy-10','happy-11','happy-12','happy-13','happy-14','happy-15','happy-16','happy-2','happy-3','happy-4','happy-5','happy-6','happy-7','happy-8','happy-9','happy','harry-potter','heisenberg','hipster-1','hipster-2','hipster','in-love-1','in-love-2','in-love-3','in-love-4','in-love-5','in-love-6','in-love','japan','jew','joyful-1','joyful-2','joyful','kiss-1','kiss-2','kiss-3','kiss-4','kiss','laughing-1','laughing-2','laughing-3','laughing','listening','love','manly','miserly-1','miserly','nerd-1','nerd-2','nerd-3','nerd-4','nerd','ninja','pirate-1','pirate-2','pirate','punk-1','punk-2','punk','rapper','relieved','rich-1','rich-2','rich','rockstar','sad-1','sad-2','sad-3','sad-4','sad-5','sad-6','sad','scared-1','scared-2','scared-3','scared','sceptic-1','sceptic-2','sceptic-3','sceptic-4','sceptic-5','sceptic-6','sceptic-7','sceptic','secret','shocked-1','shocked-2','shocked-3','shocked','sick-1','sick-2','sick-3','sick-4','sick','silent','skeleton','smile','smiling-1','smiling','smoked','smug-1','smug-2','smug-3','smug-4','smug-5','smug-6','smug','sporty','stunned','superhero-1','superhero-2','superhero-3','superhero-4','superhero','surprised-1','surprised','thinking','tired-1','tired-2','tired-3','tired','tough-1','tough','trendy','vampire-1','vampire','wink-1','wink-2','wink','winking-1','winking','yawning-1','yawning-2','yawning-3','yawning','yelling','zombie'];","import {DrawerName} from '../../image-editor-ui/toolbar-controls/drawers/drawer-name.enum';\r\n\r\nexport class OpenEditor {\r\n    static readonly type = '[Editor] Open';\r\n}\r\n\r\nexport class CloseEditor {\r\n    static readonly type = '[Editor] Close';\r\n    constructor(public executeCallback = true) {}\r\n}\r\n\r\nexport class OpenPanel {\r\n    static readonly type = '[Editor] Open Panel';\r\n    constructor(public panel: DrawerName) {}\r\n}\r\n\r\nexport class CloseForePanel {\r\n    static readonly type = '[Editor] Close Fore Panel';\r\n}\r\n\r\nexport class ResetToolState {\r\n    static readonly type = '[Editor] Reset Tool State';\r\n}\r\n\r\nexport class ApplyChanges {\r\n    static readonly type = '[Editor] Apply Changes';\r\n    public constructor(public panel: DrawerName, public closePanel = true) {}\r\n}\r\n\r\nexport class CancelChanges {\r\n    static readonly type = '[Editor] Cancel Changes';\r\n    public constructor(public panel: DrawerName) {}\r\n}\r\n\r\nexport class ObjectSelected {\r\n    static readonly type = '[Editor] Object Selected';\r\n    // \"fromUserAction\" is true if event originated from user action (click, tap etc.)\r\n    constructor(public objectType: string, public fromUserAction: boolean) {}\r\n}\r\n\r\nexport class ObjectDeselected {\r\n    static readonly type = '[Editor] Object Deselected';\r\n    // \"fromUserAction\" is true if event originated from user action (click, tap etc.)\r\n    constructor(public fromUserAction: boolean) {}\r\n}\r\n\r\nexport class ContentLoaded {\r\n    static readonly type = '[Editor] Content Loaded';\r\n    constructor(public status = true) {}\r\n}\r\n\r\nexport class ObjectsSynced {\r\n    static readonly type = '[Editor] Objects Synced';\r\n}\r\n\r\nexport class SetZoom {\r\n    static readonly type = '[Editor] Set Zoom';\r\n    constructor(public zoom: number) {}\r\n}\r\n","import { Action } from './Action';\nexport class AsyncAction extends Action {\n    constructor(scheduler, work) {\n        super(scheduler, work);\n        this.scheduler = scheduler;\n        this.work = work;\n        this.pending = false;\n    }\n    schedule(state, delay = 0) {\n        if (this.closed) {\n            return this;\n        }\n        this.state = state;\n        const id = this.id;\n        const scheduler = this.scheduler;\n        if (id != null) {\n            this.id = this.recycleAsyncId(scheduler, id, delay);\n        }\n        this.pending = true;\n        this.delay = delay;\n        this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);\n        return this;\n    }\n    requestAsyncId(scheduler, id, delay = 0) {\n        return setInterval(scheduler.flush.bind(scheduler, this), delay);\n    }\n    recycleAsyncId(scheduler, id, delay = 0) {\n        if (delay !== null && this.delay === delay && this.pending === false) {\n            return id;\n        }\n        clearInterval(id);\n        return undefined;\n    }\n    execute(state, delay) {\n        if (this.closed) {\n            return new Error('executing a cancelled action');\n        }\n        this.pending = false;\n        const error = this._execute(state, delay);\n        if (error) {\n            return error;\n        }\n        else if (this.pending === false && this.id != null) {\n            this.id = this.recycleAsyncId(this.scheduler, this.id, null);\n        }\n    }\n    _execute(state, delay) {\n        let errored = false;\n        let errorValue = undefined;\n        try {\n            this.work(state);\n        }\n        catch (e) {\n            errored = true;\n            errorValue = !!e && e || new Error(e);\n        }\n        if (errored) {\n            this.unsubscribe();\n            return errorValue;\n        }\n    }\n    _unsubscribe() {\n        const id = this.id;\n        const scheduler = this.scheduler;\n        const actions = scheduler.actions;\n        const index = actions.indexOf(this);\n        this.work = null;\n        this.state = null;\n        this.pending = false;\n        this.scheduler = null;\n        if (index !== -1) {\n            actions.splice(index, 1);\n        }\n        if (id != null) {\n            this.id = this.recycleAsyncId(scheduler, id, null);\n        }\n        this.delay = null;\n    }\n}\n//# sourceMappingURL=AsyncAction.js.map","import { Subscription } from '../Subscription';\nexport class Action extends Subscription {\n    constructor(scheduler, work) {\n        super();\n    }\n    schedule(state, delay = 0) {\n        return this;\n    }\n}\n//# sourceMappingURL=Action.js.map","export class Scheduler {\n    constructor(SchedulerAction, now = Scheduler.now) {\n        this.SchedulerAction = SchedulerAction;\n        this.now = now;\n    }\n    schedule(work, delay = 0, state) {\n        return new this.SchedulerAction(this, work).schedule(state, delay);\n    }\n}\nScheduler.now = () => Date.now();\n//# sourceMappingURL=Scheduler.js.map","import { Scheduler } from '../Scheduler';\nexport class AsyncScheduler extends Scheduler {\n    constructor(SchedulerAction, now = Scheduler.now) {\n        super(SchedulerAction, () => {\n            if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n                return AsyncScheduler.delegate.now();\n            }\n            else {\n                return now();\n            }\n        });\n        this.actions = [];\n        this.active = false;\n        this.scheduled = undefined;\n    }\n    schedule(work, delay = 0, state) {\n        if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {\n            return AsyncScheduler.delegate.schedule(work, delay, state);\n        }\n        else {\n            return super.schedule(work, delay, state);\n        }\n    }\n    flush(action) {\n        const { actions } = this;\n        if (this.active) {\n            actions.push(action);\n            return;\n        }\n        let error;\n        this.active = true;\n        do {\n            if (error = action.execute(action.state, action.delay)) {\n                break;\n            }\n        } while (action = actions.shift());\n        this.active = false;\n        if (error) {\n            while (action = actions.shift()) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    }\n}\n//# sourceMappingURL=AsyncScheduler.js.map","import { AsyncAction } from './AsyncAction';\nimport { AsyncScheduler } from './AsyncScheduler';\nexport const async = new AsyncScheduler(AsyncAction);\n//# sourceMappingURL=async.js.map","import { Observable } from '../Observable';\nexport const EMPTY = new Observable(subscriber => subscriber.complete());\nexport function empty(scheduler) {\n    return scheduler ? emptyScheduled(scheduler) : EMPTY;\n}\nfunction emptyScheduled(scheduler) {\n    return new Observable(subscriber => scheduler.schedule(() => subscriber.complete()));\n}\n//# sourceMappingURL=empty.js.map","import { isScheduler } from '../util/isScheduler';\nimport { fromArray } from './fromArray';\nimport { scheduleArray } from '../scheduled/scheduleArray';\nexport function of(...args) {\n    let scheduler = args[args.length - 1];\n    if (isScheduler(scheduler)) {\n        args.pop();\n        return scheduleArray(args, scheduler);\n    }\n    else {\n        return fromArray(args);\n    }\n}\n//# sourceMappingURL=of.js.map","import { Observable } from '../Observable';\nexport function throwError(error, scheduler) {\n    if (!scheduler) {\n        return new Observable(subscriber => subscriber.error(error));\n    }\n    else {\n        return new Observable(subscriber => scheduler.schedule(dispatch, 0, { error, subscriber }));\n    }\n}\nfunction dispatch({ error, subscriber }) {\n    subscriber.error(error);\n}\n//# sourceMappingURL=throwError.js.map","import { empty } from './observable/empty';\nimport { of } from './observable/of';\nimport { throwError } from './observable/throwError';\nexport var NotificationKind;\n(function (NotificationKind) {\n    NotificationKind[\"NEXT\"] = \"N\";\n    NotificationKind[\"ERROR\"] = \"E\";\n    NotificationKind[\"COMPLETE\"] = \"C\";\n})(NotificationKind || (NotificationKind = {}));\nexport class Notification {\n    constructor(kind, value, error) {\n        this.kind = kind;\n        this.value = value;\n        this.error = error;\n        this.hasValue = kind === 'N';\n    }\n    observe(observer) {\n        switch (this.kind) {\n            case 'N':\n                return observer.next && observer.next(this.value);\n            case 'E':\n                return observer.error && observer.error(this.error);\n            case 'C':\n                return observer.complete && observer.complete();\n        }\n    }\n    do(next, error, complete) {\n        const kind = this.kind;\n        switch (kind) {\n            case 'N':\n                return next && next(this.value);\n            case 'E':\n                return error && error(this.error);\n            case 'C':\n                return complete && complete();\n        }\n    }\n    accept(nextOrObserver, error, complete) {\n        if (nextOrObserver && typeof nextOrObserver.next === 'function') {\n            return this.observe(nextOrObserver);\n        }\n        else {\n            return this.do(nextOrObserver, error, complete);\n        }\n    }\n    toObservable() {\n        const kind = this.kind;\n        switch (kind) {\n            case 'N':\n                return of(this.value);\n            case 'E':\n                return throwError(this.error);\n            case 'C':\n                return empty();\n        }\n        throw new Error('unexpected notification kind value');\n    }\n    static createNext(value) {\n        if (typeof value !== 'undefined') {\n            return new Notification('N', value);\n        }\n        return Notification.undefinedValueNotification;\n    }\n    static createError(err) {\n        return new Notification('E', undefined, err);\n    }\n    static createComplete() {\n        return Notification.completeNotification;\n    }\n}\nNotification.completeNotification = new Notification('C');\nNotification.undefinedValueNotification = new Notification('N', undefined);\n//# sourceMappingURL=Notification.js.map","import { async } from '../scheduler/async';\nimport { isDate } from '../util/isDate';\nimport { Subscriber } from '../Subscriber';\nimport { Notification } from '../Notification';\nexport function delay(delay, scheduler = async) {\n    const absoluteDelay = isDate(delay);\n    const delayFor = absoluteDelay ? (+delay - scheduler.now()) : Math.abs(delay);\n    return (source) => source.lift(new DelayOperator(delayFor, scheduler));\n}\nclass DelayOperator {\n    constructor(delay, scheduler) {\n        this.delay = delay;\n        this.scheduler = scheduler;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new DelaySubscriber(subscriber, this.delay, this.scheduler));\n    }\n}\nclass DelaySubscriber extends Subscriber {\n    constructor(destination, delay, scheduler) {\n        super(destination);\n        this.delay = delay;\n        this.scheduler = scheduler;\n        this.queue = [];\n        this.active = false;\n        this.errored = false;\n    }\n    static dispatch(state) {\n        const source = state.source;\n        const queue = source.queue;\n        const scheduler = state.scheduler;\n        const destination = state.destination;\n        while (queue.length > 0 && (queue[0].time - scheduler.now()) <= 0) {\n            queue.shift().notification.observe(destination);\n        }\n        if (queue.length > 0) {\n            const delay = Math.max(0, queue[0].time - scheduler.now());\n            this.schedule(state, delay);\n        }\n        else {\n            this.unsubscribe();\n            source.active = false;\n        }\n    }\n    _schedule(scheduler) {\n        this.active = true;\n        const destination = this.destination;\n        destination.add(scheduler.schedule(DelaySubscriber.dispatch, this.delay, {\n            source: this, destination: this.destination, scheduler: scheduler\n        }));\n    }\n    scheduleNotification(notification) {\n        if (this.errored === true) {\n            return;\n        }\n        const scheduler = this.scheduler;\n        const message = new DelayMessage(scheduler.now() + this.delay, notification);\n        this.queue.push(message);\n        if (this.active === false) {\n            this._schedule(scheduler);\n        }\n    }\n    _next(value) {\n        this.scheduleNotification(Notification.createNext(value));\n    }\n    _error(err) {\n        this.errored = true;\n        this.queue = [];\n        this.destination.error(err);\n        this.unsubscribe();\n    }\n    _complete() {\n        this.scheduleNotification(Notification.createComplete());\n        this.unsubscribe();\n    }\n}\nclass DelayMessage {\n    constructor(time, notification) {\n        this.time = time;\n        this.notification = notification;\n    }\n}\n//# sourceMappingURL=delay.js.map","export function isDate(value) {\n    return value instanceof Date && !isNaN(+value);\n}\n//# sourceMappingURL=isDate.js.map","/*! *****************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n/* global Reflect, Promise */\r\n\r\nvar extendStatics = function(d, b) {\r\n    extendStatics = Object.setPrototypeOf ||\r\n        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||\r\n        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };\r\n    return extendStatics(d, b);\r\n};\r\n\r\nexport function __extends(d, b) {\r\n    extendStatics(d, b);\r\n    function __() { this.constructor = d; }\r\n    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());\r\n}\r\n\r\nexport var __assign = function() {\r\n    __assign = Object.assign || function __assign(t) {\r\n        for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n            s = arguments[i];\r\n            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n        }\r\n        return t;\r\n    }\r\n    return __assign.apply(this, arguments);\r\n}\r\n\r\nexport function __rest(s, e) {\r\n    var t = {};\r\n    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)\r\n        t[p] = s[p];\r\n    if (s != null && typeof Object.getOwnPropertySymbols === \"function\")\r\n        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {\r\n            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))\r\n                t[p[i]] = s[p[i]];\r\n        }\r\n    return t;\r\n}\r\n\r\nexport function __decorate(decorators, target, key, desc) {\r\n    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;\r\n    if (typeof Reflect === \"object\" && typeof Reflect.decorate === \"function\") r = Reflect.decorate(decorators, target, key, desc);\r\n    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;\r\n    return c > 3 && r && Object.defineProperty(target, key, r), r;\r\n}\r\n\r\nexport function __param(paramIndex, decorator) {\r\n    return function (target, key) { decorator(target, key, paramIndex); }\r\n}\r\n\r\nexport function __metadata(metadataKey, metadataValue) {\r\n    if (typeof Reflect === \"object\" && typeof Reflect.metadata === \"function\") return Reflect.metadata(metadataKey, metadataValue);\r\n}\r\n\r\nexport function __awaiter(thisArg, _arguments, P, generator) {\r\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\r\n    return new (P || (P = Promise))(function (resolve, reject) {\r\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\r\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\r\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\r\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\r\n    });\r\n}\r\n\r\nexport function __generator(thisArg, body) {\r\n    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;\r\n    return g = { next: verb(0), \"throw\": verb(1), \"return\": verb(2) }, typeof Symbol === \"function\" && (g[Symbol.iterator] = function() { return this; }), g;\r\n    function verb(n) { return function (v) { return step([n, v]); }; }\r\n    function step(op) {\r\n        if (f) throw new TypeError(\"Generator is already executing.\");\r\n        while (_) try {\r\n            if (f = 1, y && (t = op[0] & 2 ? y[\"return\"] : op[0] ? y[\"throw\"] || ((t = y[\"return\"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;\r\n            if (y = 0, t) op = [op[0] & 2, t.value];\r\n            switch (op[0]) {\r\n                case 0: case 1: t = op; break;\r\n                case 4: _.label++; return { value: op[1], done: false };\r\n                case 5: _.label++; y = op[1]; op = [0]; continue;\r\n                case 7: op = _.ops.pop(); _.trys.pop(); continue;\r\n                default:\r\n                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }\r\n                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }\r\n                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }\r\n                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }\r\n                    if (t[2]) _.ops.pop();\r\n                    _.trys.pop(); continue;\r\n            }\r\n            op = body.call(thisArg, _);\r\n        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }\r\n        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };\r\n    }\r\n}\r\n\r\nexport var __createBinding = Object.create ? (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\r\n}) : (function(o, m, k, k2) {\r\n    if (k2 === undefined) k2 = k;\r\n    o[k2] = m[k];\r\n});\r\n\r\nexport function __exportStar(m, exports) {\r\n    for (var p in m) if (p !== \"default\" && !exports.hasOwnProperty(p)) __createBinding(exports, m, p);\r\n}\r\n\r\nexport function __values(o) {\r\n    var s = typeof Symbol === \"function\" && Symbol.iterator, m = s && o[s], i = 0;\r\n    if (m) return m.call(o);\r\n    if (o && typeof o.length === \"number\") return {\r\n        next: function () {\r\n            if (o && i >= o.length) o = void 0;\r\n            return { value: o && o[i++], done: !o };\r\n        }\r\n    };\r\n    throw new TypeError(s ? \"Object is not iterable.\" : \"Symbol.iterator is not defined.\");\r\n}\r\n\r\nexport function __read(o, n) {\r\n    var m = typeof Symbol === \"function\" && o[Symbol.iterator];\r\n    if (!m) return o;\r\n    var i = m.call(o), r, ar = [], e;\r\n    try {\r\n        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);\r\n    }\r\n    catch (error) { e = { error: error }; }\r\n    finally {\r\n        try {\r\n            if (r && !r.done && (m = i[\"return\"])) m.call(i);\r\n        }\r\n        finally { if (e) throw e.error; }\r\n    }\r\n    return ar;\r\n}\r\n\r\nexport function __spread() {\r\n    for (var ar = [], i = 0; i < arguments.length; i++)\r\n        ar = ar.concat(__read(arguments[i]));\r\n    return ar;\r\n}\r\n\r\nexport function __spreadArrays() {\r\n    for (var s = 0, i = 0, il = arguments.length; i < il; i++) s += arguments[i].length;\r\n    for (var r = Array(s), k = 0, i = 0; i < il; i++)\r\n        for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)\r\n            r[k] = a[j];\r\n    return r;\r\n};\r\n\r\nexport function __await(v) {\r\n    return this instanceof __await ? (this.v = v, this) : new __await(v);\r\n}\r\n\r\nexport function __asyncGenerator(thisArg, _arguments, generator) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var g = generator.apply(thisArg, _arguments || []), i, q = [];\r\n    return i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i;\r\n    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }\r\n    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }\r\n    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }\r\n    function fulfill(value) { resume(\"next\", value); }\r\n    function reject(value) { resume(\"throw\", value); }\r\n    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }\r\n}\r\n\r\nexport function __asyncDelegator(o) {\r\n    var i, p;\r\n    return i = {}, verb(\"next\"), verb(\"throw\", function (e) { throw e; }), verb(\"return\"), i[Symbol.iterator] = function () { return this; }, i;\r\n    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === \"return\" } : f ? f(v) : v; } : f; }\r\n}\r\n\r\nexport function __asyncValues(o) {\r\n    if (!Symbol.asyncIterator) throw new TypeError(\"Symbol.asyncIterator is not defined.\");\r\n    var m = o[Symbol.asyncIterator], i;\r\n    return m ? m.call(o) : (o = typeof __values === \"function\" ? __values(o) : o[Symbol.iterator](), i = {}, verb(\"next\"), verb(\"throw\"), verb(\"return\"), i[Symbol.asyncIterator] = function () { return this; }, i);\r\n    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }\r\n    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }\r\n}\r\n\r\nexport function __makeTemplateObject(cooked, raw) {\r\n    if (Object.defineProperty) { Object.defineProperty(cooked, \"raw\", { value: raw }); } else { cooked.raw = raw; }\r\n    return cooked;\r\n};\r\n\r\nvar __setModuleDefault = Object.create ? (function(o, v) {\r\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\r\n}) : function(o, v) {\r\n    o[\"default\"] = v;\r\n};\r\n\r\nexport function __importStar(mod) {\r\n    if (mod && mod.__esModule) return mod;\r\n    var result = {};\r\n    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\r\n    __setModuleDefault(result, mod);\r\n    return result;\r\n}\r\n\r\nexport function __importDefault(mod) {\r\n    return (mod && mod.__esModule) ? mod : { default: mod };\r\n}\r\n\r\nexport function __classPrivateFieldGet(receiver, privateMap) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to get private field on non-instance\");\r\n    }\r\n    return privateMap.get(receiver);\r\n}\r\n\r\nexport function __classPrivateFieldSet(receiver, privateMap, value) {\r\n    if (!privateMap.has(receiver)) {\r\n        throw new TypeError(\"attempted to set private field on non-instance\");\r\n    }\r\n    privateMap.set(receiver, value);\r\n    return value;\r\n}\r\n","import { AsyncAction } from './AsyncAction';\nexport class QueueAction extends AsyncAction {\n    constructor(scheduler, work) {\n        super(scheduler, work);\n        this.scheduler = scheduler;\n        this.work = work;\n    }\n    schedule(state, delay = 0) {\n        if (delay > 0) {\n            return super.schedule(state, delay);\n        }\n        this.delay = delay;\n        this.state = state;\n        this.scheduler.flush(this);\n        return this;\n    }\n    execute(state, delay) {\n        return (delay > 0 || this.closed) ?\n            super.execute(state, delay) :\n            this._execute(state, delay);\n    }\n    requestAsyncId(scheduler, id, delay = 0) {\n        if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n            return super.requestAsyncId(scheduler, id, delay);\n        }\n        return scheduler.flush(this);\n    }\n}\n//# sourceMappingURL=QueueAction.js.map","import { QueueAction } from './QueueAction';\nimport { QueueScheduler } from './QueueScheduler';\nexport const queue = new QueueScheduler(QueueAction);\n//# sourceMappingURL=queue.js.map","import { AsyncScheduler } from './AsyncScheduler';\nexport class QueueScheduler extends AsyncScheduler {\n}\n//# sourceMappingURL=QueueScheduler.js.map","import { Subscriber } from '../Subscriber';\nimport { Notification } from '../Notification';\nexport function observeOn(scheduler, delay = 0) {\n    return function observeOnOperatorFunction(source) {\n        return source.lift(new ObserveOnOperator(scheduler, delay));\n    };\n}\nexport class ObserveOnOperator {\n    constructor(scheduler, delay = 0) {\n        this.scheduler = scheduler;\n        this.delay = delay;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new ObserveOnSubscriber(subscriber, this.scheduler, this.delay));\n    }\n}\nexport class ObserveOnSubscriber extends Subscriber {\n    constructor(destination, scheduler, delay = 0) {\n        super(destination);\n        this.scheduler = scheduler;\n        this.delay = delay;\n    }\n    static dispatch(arg) {\n        const { notification, destination } = arg;\n        notification.observe(destination);\n        this.unsubscribe();\n    }\n    scheduleMessage(notification) {\n        const destination = this.destination;\n        destination.add(this.scheduler.schedule(ObserveOnSubscriber.dispatch, this.delay, new ObserveOnMessage(notification, this.destination)));\n    }\n    _next(value) {\n        this.scheduleMessage(Notification.createNext(value));\n    }\n    _error(err) {\n        this.scheduleMessage(Notification.createError(err));\n        this.unsubscribe();\n    }\n    _complete() {\n        this.scheduleMessage(Notification.createComplete());\n        this.unsubscribe();\n    }\n}\nexport class ObserveOnMessage {\n    constructor(notification, destination) {\n        this.notification = notification;\n        this.destination = destination;\n    }\n}\n//# sourceMappingURL=observeOn.js.map","import { Subject } from './Subject';\nimport { queue } from './scheduler/queue';\nimport { Subscription } from './Subscription';\nimport { ObserveOnSubscriber } from './operators/observeOn';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { SubjectSubscription } from './SubjectSubscription';\nexport class ReplaySubject extends Subject {\n    constructor(bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, scheduler) {\n        super();\n        this.scheduler = scheduler;\n        this._events = [];\n        this._infiniteTimeWindow = false;\n        this._bufferSize = bufferSize < 1 ? 1 : bufferSize;\n        this._windowTime = windowTime < 1 ? 1 : windowTime;\n        if (windowTime === Number.POSITIVE_INFINITY) {\n            this._infiniteTimeWindow = true;\n            this.next = this.nextInfiniteTimeWindow;\n        }\n        else {\n            this.next = this.nextTimeWindow;\n        }\n    }\n    nextInfiniteTimeWindow(value) {\n        const _events = this._events;\n        _events.push(value);\n        if (_events.length > this._bufferSize) {\n            _events.shift();\n        }\n        super.next(value);\n    }\n    nextTimeWindow(value) {\n        this._events.push(new ReplayEvent(this._getNow(), value));\n        this._trimBufferThenGetEvents();\n        super.next(value);\n    }\n    _subscribe(subscriber) {\n        const _infiniteTimeWindow = this._infiniteTimeWindow;\n        const _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();\n        const scheduler = this.scheduler;\n        const len = _events.length;\n        let subscription;\n        if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else if (this.isStopped || this.hasError) {\n            subscription = Subscription.EMPTY;\n        }\n        else {\n            this.observers.push(subscriber);\n            subscription = new SubjectSubscription(this, subscriber);\n        }\n        if (scheduler) {\n            subscriber.add(subscriber = new ObserveOnSubscriber(subscriber, scheduler));\n        }\n        if (_infiniteTimeWindow) {\n            for (let i = 0; i < len && !subscriber.closed; i++) {\n                subscriber.next(_events[i]);\n            }\n        }\n        else {\n            for (let i = 0; i < len && !subscriber.closed; i++) {\n                subscriber.next(_events[i].value);\n            }\n        }\n        if (this.hasError) {\n            subscriber.error(this.thrownError);\n        }\n        else if (this.isStopped) {\n            subscriber.complete();\n        }\n        return subscription;\n    }\n    _getNow() {\n        return (this.scheduler || queue).now();\n    }\n    _trimBufferThenGetEvents() {\n        const now = this._getNow();\n        const _bufferSize = this._bufferSize;\n        const _windowTime = this._windowTime;\n        const _events = this._events;\n        const eventsCount = _events.length;\n        let spliceCount = 0;\n        while (spliceCount < eventsCount) {\n            if ((now - _events[spliceCount].time) < _windowTime) {\n                break;\n            }\n            spliceCount++;\n        }\n        if (eventsCount > _bufferSize) {\n            spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);\n        }\n        if (spliceCount > 0) {\n            _events.splice(0, spliceCount);\n        }\n        return _events;\n    }\n}\nclass ReplayEvent {\n    constructor(time, value) {\n        this.time = time;\n        this.value = value;\n    }\n}\n//# sourceMappingURL=ReplaySubject.js.map","import { getPlatform, COMPILER_OPTIONS, Injectable, InjectionToken } from '@angular/core';\nimport { ReplaySubject } from 'rxjs';\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @param {?} a\r\n * @param {?} b\r\n * @return {?}\r\n */\r\nimport * as ɵngcc0 from '@angular/core';\nfunction defaultEqualityCheck(a, b) {\r\n    return a === b;\r\n}\r\n/**\r\n * @param {?} equalityCheck\r\n * @param {?} prev\r\n * @param {?} next\r\n * @return {?}\r\n */\r\nfunction areArgumentsShallowlyEqual(equalityCheck, prev, next) {\r\n    if (prev === null || next === null || prev.length !== next.length) {\r\n        return false;\r\n    }\r\n    // Do this in a for loop (and not a `forEach` or an `every`) so we can determine equality as fast as possible.\r\n    /** @type {?} */\r\n    const length = prev.length;\r\n    for (let i = 0; i < length; i++) {\r\n        if (!equalityCheck(prev[i], next[i])) {\r\n            return false;\r\n        }\r\n    }\r\n    return true;\r\n}\r\n/**\r\n * Memoize a function on its last inputs only.\r\n * Originally from: https://github.com/reduxjs/reselect/blob/master/src/index.js\r\n *\r\n * @ignore\r\n * @template T\r\n * @param {?} func\r\n * @param {?=} equalityCheck\r\n * @return {?}\r\n */\r\nfunction memoize(func, equalityCheck = defaultEqualityCheck) {\r\n    /** @type {?} */\r\n    let lastArgs = null;\r\n    /** @type {?} */\r\n    let lastResult = null;\r\n    // we reference arguments instead of spreading them for performance reasons\r\n    /**\r\n     * @return {?}\r\n     */\r\n    function memoized() {\r\n        if (!areArgumentsShallowlyEqual(equalityCheck, lastArgs, arguments)) {\r\n            // apply arguments instead of spreading for performance.\r\n            lastResult = ((/** @type {?} */ (func))).apply(null, arguments);\r\n        }\r\n        lastArgs = arguments;\r\n        return lastResult;\r\n    }\r\n    ((/** @type {?} */ (memoized))).reset = (/**\r\n     * @return {?}\r\n     */\r\n    function () {\r\n        // The hidden (for now) ability to reset the memoization\r\n        lastArgs = null;\r\n        lastResult = null;\r\n    });\r\n    return (/** @type {?} */ (memoized));\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @return {?}\r\n */\r\nfunction _isAngularInTestMode() {\r\n    /** @type {?} */\r\n    const platformRef = getPlatform();\r\n    if (!platformRef)\r\n        return false;\r\n    /** @type {?} */\r\n    const compilerOptions = platformRef.injector.get(COMPILER_OPTIONS, null);\r\n    if (!compilerOptions)\r\n        return false;\r\n    /** @type {?} */\r\n    const isInTestMode = compilerOptions.some((/**\r\n     * @param {?} item\r\n     * @return {?}\r\n     */\r\n    (item) => {\r\n        /** @type {?} */\r\n        const providers = (item && item.providers) || [];\r\n        return providers.some((/**\r\n         * @param {?} provider\r\n         * @return {?}\r\n         */\r\n        (provider) => {\r\n            return ((provider && provider.provide && provider.provide.name === 'MockNgModuleResolver') ||\r\n                false);\r\n        }));\r\n    }));\r\n    return isInTestMode;\r\n}\r\n/** @type {?} */\r\nconst isAngularInTestMode = memoize(_isAngularInTestMode);\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass NgxsBootstrapper {\r\n    constructor() {\r\n        /**\r\n         * Use `ReplaySubject`, thus we can get cached value even if the stream is completed\r\n         */\r\n        this.bootstrap$ = new ReplaySubject(1);\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    get appBootstrapped$() {\r\n        return this.bootstrap$.asObservable();\r\n    }\r\n    /**\r\n     * This event will be emitted after attaching `ComponentRef` of the root component\r\n     * to the tree of views, that's a signal that application has been fully rendered\r\n     * @return {?}\r\n     */\r\n    bootstrap() {\r\n        this.bootstrap$.next(true);\r\n        this.bootstrap$.complete();\r\n    }\r\n}\nNgxsBootstrapper.ɵfac = function NgxsBootstrapper_Factory(t) { return new (t || NgxsBootstrapper)(); };\nNgxsBootstrapper.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: NgxsBootstrapper, factory: NgxsBootstrapper.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgxsBootstrapper, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\r\nif (false) {\r\n    /**\r\n     * Use `ReplaySubject`, thus we can get cached value even if the stream is completed\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    NgxsBootstrapper.prototype.bootstrap$;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/** @type {?} */\r\nconst INITIAL_STATE_TOKEN = new InjectionToken('INITIAL_STATE_TOKEN');\r\nclass InitialState {\r\n    /**\r\n     * @param {?} state\r\n     * @return {?}\r\n     */\r\n    static set(state) {\r\n        this.value = state;\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    static pop() {\r\n        /** @type {?} */\r\n        const state = this.value;\r\n        this.value = {};\r\n        return state;\r\n    }\r\n}\r\nInitialState.value = {};\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InitialState.value;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @see StateContextFactory as it's referenced by this token to be accessed by plugins internally\r\n * @type {?}\r\n */\r\nconst NGXS_STATE_CONTEXT_FACTORY = new InjectionToken('Internals.StateContextFactory');\r\n/**\r\n * @see StateFactory as it's referenced by this token to be accessed by plugins internally\r\n * @type {?}\r\n */\r\nconst NGXS_STATE_FACTORY = new InjectionToken('Internals.StateFactory');\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\n\nexport { INITIAL_STATE_TOKEN, InitialState, NGXS_STATE_CONTEXT_FACTORY, NGXS_STATE_FACTORY, NgxsBootstrapper, isAngularInTestMode, memoize };\n\n//# sourceMappingURL=ngxs-store-internals.js.map","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { InjectionToken, Injectable, ɵɵdefineInjectable, ɵɵinject, Inject, Optional, EventEmitter, ɵfindLocaleData, ɵLocaleDataIndex, ɵgetLocaleCurrencyCode, ɵgetLocalePluralCase, LOCALE_ID, ɵregisterLocaleData, ɵisListLikeIterable, ɵstringify, Directive, IterableDiffers, KeyValueDiffers, ElementRef, Renderer2, Input, NgModuleRef, ComponentFactoryResolver, ViewContainerRef, isDevMode, TemplateRef, Host, Attribute, ɵlooseIdentical, WrappedValue, ɵisPromise, ɵisObservable, Pipe, ChangeDetectorRef, DEFAULT_CURRENCY_CODE, NgModule, Version, ErrorHandler } from '@angular/core';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/dom_adapter.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nimport * as ɵngcc0 from '@angular/core';\nlet _DOM = (/** @type {?} */ (null));\n/**\n * @return {?}\n */\nfunction getDOM() {\n    return _DOM;\n}\n/**\n * @param {?} adapter\n * @return {?}\n */\nfunction setDOM(adapter) {\n    _DOM = adapter;\n}\n/**\n * @param {?} adapter\n * @return {?}\n */\nfunction setRootDomAdapter(adapter) {\n    if (!_DOM) {\n        _DOM = adapter;\n    }\n}\n/* tslint:disable:requireParameterType */\n/**\n * Provides DOM operations in an environment-agnostic way.\n *\n * \\@security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n * @abstract\n */\nclass DomAdapter {\n}\nif (false) {\n    /**\n     * @abstract\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    DomAdapter.prototype.getProperty = function (el, name) { };\n    /**\n     * @abstract\n     * @param {?} el\n     * @param {?} evt\n     * @return {?}\n     */\n    DomAdapter.prototype.dispatchEvent = function (el, evt) { };\n    /**\n     * @abstract\n     * @param {?} error\n     * @return {?}\n     */\n    DomAdapter.prototype.log = function (error) { };\n    /**\n     * @abstract\n     * @param {?} error\n     * @return {?}\n     */\n    DomAdapter.prototype.logGroup = function (error) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.logGroupEnd = function () { };\n    /**\n     * @abstract\n     * @param {?} el\n     * @return {?}\n     */\n    DomAdapter.prototype.remove = function (el) { };\n    /**\n     * @abstract\n     * @param {?} tagName\n     * @param {?=} doc\n     * @return {?}\n     */\n    DomAdapter.prototype.createElement = function (tagName, doc) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.createHtmlDocument = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.getDefaultDocument = function () { };\n    /**\n     * @abstract\n     * @param {?} node\n     * @return {?}\n     */\n    DomAdapter.prototype.isElementNode = function (node) { };\n    /**\n     * @abstract\n     * @param {?} node\n     * @return {?}\n     */\n    DomAdapter.prototype.isShadowRoot = function (node) { };\n    /**\n     * @abstract\n     * @param {?} el\n     * @param {?} evt\n     * @param {?} listener\n     * @return {?}\n     */\n    DomAdapter.prototype.onAndCancel = function (el, evt, listener) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.supportsDOMEvents = function () { };\n    /**\n     * @abstract\n     * @param {?} doc\n     * @param {?} target\n     * @return {?}\n     */\n    DomAdapter.prototype.getGlobalEventTarget = function (doc, target) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.getHistory = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.getLocation = function () { };\n    /**\n     * This is the ambient Location definition, NOT Location from \\@angular/common.\n     * @abstract\n     * @param {?} doc\n     * @return {?}\n     */\n    DomAdapter.prototype.getBaseHref = function (doc) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.resetBaseElement = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.getUserAgent = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.performanceNow = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    DomAdapter.prototype.supportsCookies = function () { };\n    /**\n     * @abstract\n     * @param {?} name\n     * @return {?}\n     */\n    DomAdapter.prototype.getCookie = function (name) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/dom_tokens.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A DI Token representing the main rendering context. In a browser this is the DOM Document.\n *\n * Note: Document might not be available in the Application Context when Application and Rendering\n * Contexts are not the same (e.g. when running the application in a Web Worker).\n *\n * \\@publicApi\n * @type {?}\n */\nconst DOCUMENT = new InjectionToken('DocumentToken');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/location/platform_location.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This class should not be used directly by an application developer. Instead, use\n * {\\@link Location}.\n *\n * `PlatformLocation` encapsulates all calls to DOM APIs, which allows the Router to be\n * platform-agnostic.\n * This means that we can have different implementation of `PlatformLocation` for the different\n * platforms that Angular supports. For example, `\\@angular/platform-browser` provides an\n * implementation specific to the browser environment, while `\\@angular/platform-server` provides\n * one suitable for use with server-side rendering.\n *\n * The `PlatformLocation` class is used directly by all implementations of {\\@link LocationStrategy}\n * when they need to interact with the DOM APIs like pushState, popState, etc.\n *\n * {\\@link LocationStrategy} in turn is used by the {\\@link Location} service which is used directly\n * by the {\\@link Router} in order to navigate between routes. Since all interactions between {\\@link\n * Router} /\n * {\\@link Location} / {\\@link LocationStrategy} and DOM APIs flow through the `PlatformLocation`\n * class, they are all platform-agnostic.\n *\n * \\@publicApi\n * @abstract\n */\nclass PlatformLocation {\n}\nPlatformLocation.ɵfac = function PlatformLocation_Factory(t) { return new (t || PlatformLocation)(); };\n/** @nocollapse */ PlatformLocation.ɵprov = ɵɵdefineInjectable({ factory: useBrowserPlatformLocation, token: PlatformLocation, providedIn: \"platform\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PlatformLocation, [{\n        type: Injectable,\n        args: [{\n                providedIn: 'platform',\n                // See #23917\n                useFactory: useBrowserPlatformLocation\n            }]\n    }], null, null); })();\nif (false) {\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.getBaseHrefFromDOM = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.getState = function () { };\n    /**\n     * @abstract\n     * @param {?} fn\n     * @return {?}\n     */\n    PlatformLocation.prototype.onPopState = function (fn) { };\n    /**\n     * @abstract\n     * @param {?} fn\n     * @return {?}\n     */\n    PlatformLocation.prototype.onHashChange = function (fn) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.href = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.protocol = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.hostname = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.port = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.pathname = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.search = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.hash = function () { };\n    /**\n     * @abstract\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @return {?}\n     */\n    PlatformLocation.prototype.replaceState = function (state, title, url) { };\n    /**\n     * @abstract\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @return {?}\n     */\n    PlatformLocation.prototype.pushState = function (state, title, url) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.forward = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    PlatformLocation.prototype.back = function () { };\n}\n/**\n * @return {?}\n */\nfunction useBrowserPlatformLocation() {\n    return ɵɵinject(BrowserPlatformLocation);\n}\n/**\n * \\@description\n * Indicates when a location is initialized.\n *\n * \\@publicApi\n * @type {?}\n */\nconst LOCATION_INITIALIZED = new InjectionToken('Location Initialized');\n/**\n * \\@description\n * A serializable version of the event from `onPopState` or `onHashChange`\n *\n * \\@publicApi\n * @record\n */\nfunction LocationChangeEvent() { }\nif (false) {\n    /** @type {?} */\n    LocationChangeEvent.prototype.type;\n    /** @type {?} */\n    LocationChangeEvent.prototype.state;\n}\n/**\n * \\@publicApi\n * @record\n */\nfunction LocationChangeListener() { }\n/**\n * `PlatformLocation` encapsulates all of the direct calls to platform APIs.\n * This class should not be used directly by an application developer. Instead, use\n * {\\@link Location}.\n */\nclass BrowserPlatformLocation extends PlatformLocation {\n    /**\n     * @param {?} _doc\n     */\n    constructor(_doc) {\n        super();\n        this._doc = _doc;\n        this._init();\n    }\n    // This is moved to its own method so that `MockPlatformLocationStrategy` can overwrite it\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _init() {\n        ((/** @type {?} */ (this))).location = getDOM().getLocation();\n        this._history = getDOM().getHistory();\n    }\n    /**\n     * @return {?}\n     */\n    getBaseHrefFromDOM() {\n        return (/** @type {?} */ (getDOM().getBaseHref(this._doc)));\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onPopState(fn) {\n        getDOM().getGlobalEventTarget(this._doc, 'window').addEventListener('popstate', fn, false);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onHashChange(fn) {\n        getDOM().getGlobalEventTarget(this._doc, 'window').addEventListener('hashchange', fn, false);\n    }\n    /**\n     * @return {?}\n     */\n    get href() {\n        return this.location.href;\n    }\n    /**\n     * @return {?}\n     */\n    get protocol() {\n        return this.location.protocol;\n    }\n    /**\n     * @return {?}\n     */\n    get hostname() {\n        return this.location.hostname;\n    }\n    /**\n     * @return {?}\n     */\n    get port() {\n        return this.location.port;\n    }\n    /**\n     * @return {?}\n     */\n    get pathname() {\n        return this.location.pathname;\n    }\n    /**\n     * @return {?}\n     */\n    get search() {\n        return this.location.search;\n    }\n    /**\n     * @return {?}\n     */\n    get hash() {\n        return this.location.hash;\n    }\n    /**\n     * @param {?} newPath\n     * @return {?}\n     */\n    set pathname(newPath) {\n        this.location.pathname = newPath;\n    }\n    /**\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @return {?}\n     */\n    pushState(state, title, url) {\n        if (supportsState()) {\n            this._history.pushState(state, title, url);\n        }\n        else {\n            this.location.hash = url;\n        }\n    }\n    /**\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @return {?}\n     */\n    replaceState(state, title, url) {\n        if (supportsState()) {\n            this._history.replaceState(state, title, url);\n        }\n        else {\n            this.location.hash = url;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    forward() {\n        this._history.forward();\n    }\n    /**\n     * @return {?}\n     */\n    back() {\n        this._history.back();\n    }\n    /**\n     * @return {?}\n     */\n    getState() {\n        return this._history.state;\n    }\n}\nBrowserPlatformLocation.ɵfac = function BrowserPlatformLocation_Factory(t) { return new (t || BrowserPlatformLocation)(ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nBrowserPlatformLocation.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ BrowserPlatformLocation.ɵprov = ɵɵdefineInjectable({ factory: createBrowserPlatformLocation, token: BrowserPlatformLocation, providedIn: \"platform\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BrowserPlatformLocation, [{\n        type: Injectable,\n        args: [{\n                providedIn: 'platform',\n                // See #23917\n                useFactory: createBrowserPlatformLocation\n            }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /** @type {?} */\n    BrowserPlatformLocation.prototype.location;\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserPlatformLocation.prototype._history;\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserPlatformLocation.prototype._doc;\n}\n/**\n * @return {?}\n */\nfunction supportsState() {\n    return !!window.history.pushState;\n}\n/**\n * @return {?}\n */\nfunction createBrowserPlatformLocation() {\n    return new BrowserPlatformLocation(ɵɵinject(DOCUMENT));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/private_export.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/location/util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Joins two parts of a URL with a slash if needed.\n *\n * @param {?} start  URL string\n * @param {?} end    URL string\n *\n *\n * @return {?} The joined URL string.\n */\nfunction joinWithSlash(start, end) {\n    if (start.length == 0) {\n        return end;\n    }\n    if (end.length == 0) {\n        return start;\n    }\n    /** @type {?} */\n    let slashes = 0;\n    if (start.endsWith('/')) {\n        slashes++;\n    }\n    if (end.startsWith('/')) {\n        slashes++;\n    }\n    if (slashes == 2) {\n        return start + end.substring(1);\n    }\n    if (slashes == 1) {\n        return start + end;\n    }\n    return start + '/' + end;\n}\n/**\n * Removes a trailing slash from a URL string if needed.\n * Looks for the first occurrence of either `#`, `?`, or the end of the\n * line as `/` characters and removes the trailing slash if one exists.\n *\n * @param {?} url URL string.\n *\n * @return {?} The URL string, modified if needed.\n */\nfunction stripTrailingSlash(url) {\n    /** @type {?} */\n    const match = url.match(/#|\\?|$/);\n    /** @type {?} */\n    const pathEndIdx = match && match.index || url.length;\n    /** @type {?} */\n    const droppedSlashIdx = pathEndIdx - (url[pathEndIdx - 1] === '/' ? 1 : 0);\n    return url.slice(0, droppedSlashIdx) + url.slice(pathEndIdx);\n}\n/**\n * Normalizes URL parameters by prepending with `?` if needed.\n *\n * @param {?} params String of URL parameters.\n *\n * @return {?} The normalized URL parameters string.\n */\nfunction normalizeQueryParams(params) {\n    return params && params[0] !== '?' ? '?' + params : params;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/location/location_strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Enables the `Location` service to read route state from the browser's URL.\n * Angular provides two strategies:\n * `HashLocationStrategy` and `PathLocationStrategy`.\n *\n * Applications should use the `Router` or `Location` services to\n * interact with application route state.\n *\n * For instance, `HashLocationStrategy` produces URLs like\n * <code class=\"no-auto-link\">http://example.com#/foo</code>,\n * and `PathLocationStrategy` produces\n * <code class=\"no-auto-link\">http://example.com/foo</code> as an equivalent URL.\n *\n * See these two classes for more.\n *\n * \\@publicApi\n * @abstract\n */\nclass LocationStrategy {\n}\nLocationStrategy.ɵfac = function LocationStrategy_Factory(t) { return new (t || LocationStrategy)(); };\n/** @nocollapse */ LocationStrategy.ɵprov = ɵɵdefineInjectable({ factory: provideLocationStrategy, token: LocationStrategy, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(LocationStrategy, [{\n        type: Injectable,\n        args: [{ providedIn: 'root', useFactory: provideLocationStrategy }]\n    }], null, null); })();\nif (false) {\n    /**\n     * @abstract\n     * @param {?=} includeHash\n     * @return {?}\n     */\n    LocationStrategy.prototype.path = function (includeHash) { };\n    /**\n     * @abstract\n     * @param {?} internal\n     * @return {?}\n     */\n    LocationStrategy.prototype.prepareExternalUrl = function (internal) { };\n    /**\n     * @abstract\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @param {?} queryParams\n     * @return {?}\n     */\n    LocationStrategy.prototype.pushState = function (state, title, url, queryParams) { };\n    /**\n     * @abstract\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @param {?} queryParams\n     * @return {?}\n     */\n    LocationStrategy.prototype.replaceState = function (state, title, url, queryParams) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    LocationStrategy.prototype.forward = function () { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    LocationStrategy.prototype.back = function () { };\n    /**\n     * @abstract\n     * @param {?} fn\n     * @return {?}\n     */\n    LocationStrategy.prototype.onPopState = function (fn) { };\n    /**\n     * @abstract\n     * @return {?}\n     */\n    LocationStrategy.prototype.getBaseHref = function () { };\n}\n/**\n * @param {?} platformLocation\n * @return {?}\n */\nfunction provideLocationStrategy(platformLocation) {\n    // See #23917\n    /** @type {?} */\n    const location = ɵɵinject(DOCUMENT).location;\n    return new PathLocationStrategy(ɵɵinject((/** @type {?} */ (PlatformLocation))), location && location.origin || '');\n}\n/**\n * A predefined [DI token](guide/glossary#di-token) for the base href\n * to be used with the `PathLocationStrategy`.\n * The base href is the URL prefix that should be preserved when generating\n * and recognizing URLs.\n *\n * \\@usageNotes\n *\n * The following example shows how to use this token to configure the root app injector\n * with a base href value, so that the DI framework can supply the dependency anywhere in the app.\n *\n * ```typescript\n * import {Component, NgModule} from '\\@angular/core';\n * import {APP_BASE_HREF} from '\\@angular/common';\n *\n * \\@NgModule({\n *   providers: [{provide: APP_BASE_HREF, useValue: '/my/app'}]\n * })\n * class AppModule {}\n * ```\n *\n * \\@publicApi\n * @type {?}\n */\nconst APP_BASE_HREF = new InjectionToken('appBaseHref');\n/**\n * \\@description\n * A {\\@link LocationStrategy} used to configure the {\\@link Location} service to\n * represent its state in the\n * [path](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax) of the\n * browser's URL.\n *\n * If you're using `PathLocationStrategy`, you must provide a {\\@link APP_BASE_HREF}\n * or add a base element to the document. This URL prefix that will be preserved\n * when generating and recognizing URLs.\n *\n * For instance, if you provide an `APP_BASE_HREF` of `'/my/app'` and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`.\n *\n * Similarly, if you add `<base href='/my/app'/>` to the document and call\n * `location.go('/foo')`, the browser's URL will become\n * `example.com/my/app/foo`.\n *\n * \\@usageNotes\n *\n * ### Example\n *\n * {\\@example common/location/ts/path_location_component.ts region='LocationComponent'}\n *\n * \\@publicApi\n */\nclass PathLocationStrategy extends LocationStrategy {\n    /**\n     * @param {?} _platformLocation\n     * @param {?=} href\n     */\n    constructor(_platformLocation, href) {\n        super();\n        this._platformLocation = _platformLocation;\n        if (href == null) {\n            href = this._platformLocation.getBaseHrefFromDOM();\n        }\n        if (href == null) {\n            throw new Error(`No base href set. Please provide a value for the APP_BASE_HREF token or add a base element to the document.`);\n        }\n        this._baseHref = href;\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onPopState(fn) {\n        this._platformLocation.onPopState(fn);\n        this._platformLocation.onHashChange(fn);\n    }\n    /**\n     * @return {?}\n     */\n    getBaseHref() {\n        return this._baseHref;\n    }\n    /**\n     * @param {?} internal\n     * @return {?}\n     */\n    prepareExternalUrl(internal) {\n        return joinWithSlash(this._baseHref, internal);\n    }\n    /**\n     * @param {?=} includeHash\n     * @return {?}\n     */\n    path(includeHash = false) {\n        /** @type {?} */\n        const pathname = this._platformLocation.pathname + normalizeQueryParams(this._platformLocation.search);\n        /** @type {?} */\n        const hash = this._platformLocation.hash;\n        return hash && includeHash ? `${pathname}${hash}` : pathname;\n    }\n    /**\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @param {?} queryParams\n     * @return {?}\n     */\n    pushState(state, title, url, queryParams) {\n        /** @type {?} */\n        const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n        this._platformLocation.pushState(state, title, externalUrl);\n    }\n    /**\n     * @param {?} state\n     * @param {?} title\n     * @param {?} url\n     * @param {?} queryParams\n     * @return {?}\n     */\n    replaceState(state, title, url, queryParams) {\n        /** @type {?} */\n        const externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));\n        this._platformLocation.replaceState(state, title, externalUrl);\n    }\n    /**\n     * @return {?}\n     */\n    forward() {\n        this._platformLocation.forward();\n    }\n    /**\n     * @return {?}\n     */\n    back() {\n        this._platformLocation.back();\n    }\n}\nPathLocationStrategy.ɵfac = function PathLocationStrategy_Factory(t) { return new (t || PathLocationStrategy)(ɵngcc0.ɵɵinject(PlatformLocation), ɵngcc0.ɵɵinject(APP_BASE_HREF, 8)); };\nPathLocationStrategy.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: PathLocationStrategy, factory: PathLocationStrategy.ɵfac });\n/** @nocollapse */\nPathLocationStrategy.ctorParameters = () => [\n    { type: PlatformLocation },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [APP_BASE_HREF,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PathLocationStrategy, [{\n        type: Injectable\n    }], function () { return [{ type: PlatformLocation }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [APP_BASE_HREF]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    PathLocationStrategy.prototype._baseHref;\n    /**\n     * @type {?}\n     * @private\n     */\n    PathLocationStrategy.prototype._platformLocation;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/location/hash_location_strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@description\n * A {\\@link LocationStrategy} used to configure the {\\@link Location} service to\n * represent its state in the\n * [hash fragment](https://en.wikipedia.org/wiki/Uniform_Resource_Locator#Syntax)\n * of the browser's URL.\n *\n * For instance, if you call `location.go('/foo')`, the browser's URL will become\n * `example.com#/foo`.\n *\n * \\@usageNotes\n *\n * ### Example\n *\n * {\\@example common/location/ts/hash_location_component.ts region='LocationComponent'}\n *\n * \\@publicApi\n */\nclass HashLocationStrategy extends LocationStrategy {\n    /**\n     * @param {?} _platformLocation\n     * @param {?=} _baseHref\n     */\n    constructor(_platformLocation, _baseHref) {\n        super();\n        this._platformLocation = _platformLocation;\n        this._baseHref = '';\n        if (_baseHref != null) {\n            this._baseHref = _baseHref;\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onPopState(fn) {\n        this._platformLocation.onPopState(fn);\n        this._platformLocation.onHashChange(fn);\n    }\n    /**\n     * @return {?}\n     */\n    getBaseHref() {\n        return this._baseHref;\n    }\n    /**\n     * @param {?=} includeHash\n     * @return {?}\n     */\n    path(includeHash = false) {\n        // the hash value is always prefixed with a `#`\n        // and if it is empty then it will stay empty\n        /** @type {?} */\n        let path = this._platformLocation.hash;\n        if (path == null)\n            path = '#';\n        return path.length > 0 ? path.substring(1) : path;\n    }\n    /**\n     * @param {?} internal\n     * @return {?}\n     */\n    prepareExternalUrl(internal) {\n        /** @type {?} */\n        const url = joinWithSlash(this._baseHref, internal);\n        return url.length > 0 ? ('#' + url) : url;\n    }\n    /**\n     * @param {?} state\n     * @param {?} title\n     * @param {?} path\n     * @param {?} queryParams\n     * @return {?}\n     */\n    pushState(state, title, path, queryParams) {\n        /** @type {?} */\n        let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));\n        if (url.length == 0) {\n            url = this._platformLocation.pathname;\n        }\n        this._platformLocation.pushState(state, title, url);\n    }\n    /**\n     * @param {?} state\n     * @param {?} title\n     * @param {?} path\n     * @param {?} queryParams\n     * @return {?}\n     */\n    replaceState(state, title, path, queryParams) {\n        /** @type {?} */\n        let url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));\n        if (url.length == 0) {\n            url = this._platformLocation.pathname;\n        }\n        this._platformLocation.replaceState(state, title, url);\n    }\n    /**\n     * @return {?}\n     */\n    forward() {\n        this._platformLocation.forward();\n    }\n    /**\n     * @return {?}\n     */\n    back() {\n        this._platformLocation.back();\n    }\n}\nHashLocationStrategy.ɵfac = function HashLocationStrategy_Factory(t) { return new (t || HashLocationStrategy)(ɵngcc0.ɵɵinject(PlatformLocation), ɵngcc0.ɵɵinject(APP_BASE_HREF, 8)); };\nHashLocationStrategy.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HashLocationStrategy, factory: HashLocationStrategy.ɵfac });\n/** @nocollapse */\nHashLocationStrategy.ctorParameters = () => [\n    { type: PlatformLocation },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [APP_BASE_HREF,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HashLocationStrategy, [{\n        type: Injectable\n    }], function () { return [{ type: PlatformLocation }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [APP_BASE_HREF]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HashLocationStrategy.prototype._baseHref;\n    /**\n     * @type {?}\n     * @private\n     */\n    HashLocationStrategy.prototype._platformLocation;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/location/location.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n * @record\n */\nfunction PopStateEvent() { }\nif (false) {\n    /** @type {?|undefined} */\n    PopStateEvent.prototype.pop;\n    /** @type {?|undefined} */\n    PopStateEvent.prototype.state;\n    /** @type {?|undefined} */\n    PopStateEvent.prototype.type;\n    /** @type {?|undefined} */\n    PopStateEvent.prototype.url;\n}\n/**\n * \\@description\n *\n * A service that applications can use to interact with a browser's URL.\n *\n * Depending on the `LocationStrategy` used, `Location` persists\n * to the URL's path or the URL's hash segment.\n *\n * \\@usageNotes\n *\n * It's better to use the `Router#navigate` service to trigger route changes. Use\n * `Location` only if you need to interact with or create normalized URLs outside of\n * routing.\n *\n * `Location` is responsible for normalizing the URL against the application's base href.\n * A normalized URL is absolute from the URL host, includes the application's base href, and has no\n * trailing slash:\n * - `/my/app/user/123` is normalized\n * - `my/app/user/123` **is not** normalized\n * - `/my/app/user/123/` **is not** normalized\n *\n * ### Example\n *\n * <code-example path='common/location/ts/path_location_component.ts'\n * region='LocationComponent'></code-example>\n *\n * \\@publicApi\n */\nclass Location {\n    /**\n     * @param {?} platformStrategy\n     * @param {?} platformLocation\n     */\n    constructor(platformStrategy, platformLocation) {\n        /**\n         * \\@internal\n         */\n        this._subject = new EventEmitter();\n        /**\n         * \\@internal\n         */\n        this._urlChangeListeners = [];\n        this._platformStrategy = platformStrategy;\n        /** @type {?} */\n        const browserBaseHref = this._platformStrategy.getBaseHref();\n        this._platformLocation = platformLocation;\n        this._baseHref = stripTrailingSlash(_stripIndexHtml(browserBaseHref));\n        this._platformStrategy.onPopState((/**\n         * @param {?} ev\n         * @return {?}\n         */\n        (ev) => {\n            this._subject.emit({\n                'url': this.path(true),\n                'pop': true,\n                'state': ev.state,\n                'type': ev.type,\n            });\n        }));\n    }\n    /**\n     * Normalizes the URL path for this location.\n     *\n     * @param {?=} includeHash True to include an anchor fragment in the path.\n     *\n     * @return {?} The normalized URL path.\n     */\n    // TODO: vsavkin. Remove the boolean flag and always include hash once the deprecated router is\n    // removed.\n    path(includeHash = false) {\n        return this.normalize(this._platformStrategy.path(includeHash));\n    }\n    /**\n     * Reports the current state of the location history.\n     * @return {?} The current value of the `history.state` object.\n     */\n    getState() {\n        return this._platformLocation.getState();\n    }\n    /**\n     * Normalizes the given path and compares to the current normalized path.\n     *\n     * @param {?} path The given URL path.\n     * @param {?=} query Query parameters.\n     *\n     * @return {?} True if the given URL path is equal to the current normalized path, false\n     * otherwise.\n     */\n    isCurrentPathEqualTo(path, query = '') {\n        return this.path() == this.normalize(path + normalizeQueryParams(query));\n    }\n    /**\n     * Normalizes a URL path by stripping any trailing slashes.\n     *\n     * @param {?} url String representing a URL.\n     *\n     * @return {?} The normalized URL string.\n     */\n    normalize(url) {\n        return Location.stripTrailingSlash(_stripBaseHref(this._baseHref, _stripIndexHtml(url)));\n    }\n    /**\n     * Normalizes an external URL path.\n     * If the given URL doesn't begin with a leading slash (`'/'`), adds one\n     * before normalizing. Adds a hash if `HashLocationStrategy` is\n     * in use, or the `APP_BASE_HREF` if the `PathLocationStrategy` is in use.\n     *\n     * @param {?} url String representing a URL.\n     *\n     * @return {?} A normalized platform-specific URL.\n     */\n    prepareExternalUrl(url) {\n        if (url && url[0] !== '/') {\n            url = '/' + url;\n        }\n        return this._platformStrategy.prepareExternalUrl(url);\n    }\n    // TODO: rename this method to pushState\n    /**\n     * Changes the browser's URL to a normalized version of a given URL, and pushes a\n     * new item onto the platform's history.\n     *\n     * @param {?} path  URL path to normalize.\n     * @param {?=} query Query parameters.\n     * @param {?=} state Location history state.\n     *\n     * @return {?}\n     */\n    go(path, query = '', state = null) {\n        this._platformStrategy.pushState(state, '', path, query);\n        this._notifyUrlChangeListeners(this.prepareExternalUrl(path + normalizeQueryParams(query)), state);\n    }\n    /**\n     * Changes the browser's URL to a normalized version of the given URL, and replaces\n     * the top item on the platform's history stack.\n     *\n     * @param {?} path  URL path to normalize.\n     * @param {?=} query Query parameters.\n     * @param {?=} state Location history state.\n     * @return {?}\n     */\n    replaceState(path, query = '', state = null) {\n        this._platformStrategy.replaceState(state, '', path, query);\n        this._notifyUrlChangeListeners(this.prepareExternalUrl(path + normalizeQueryParams(query)), state);\n    }\n    /**\n     * Navigates forward in the platform's history.\n     * @return {?}\n     */\n    forward() {\n        this._platformStrategy.forward();\n    }\n    /**\n     * Navigates back in the platform's history.\n     * @return {?}\n     */\n    back() {\n        this._platformStrategy.back();\n    }\n    /**\n     * Registers a URL change listener. Use to catch updates performed by the Angular\n     * framework that are not detectible through \"popstate\" or \"hashchange\" events.\n     *\n     * @param {?} fn The change handler function, which take a URL and a location history state.\n     * @return {?}\n     */\n    onUrlChange(fn) {\n        this._urlChangeListeners.push(fn);\n        this.subscribe((/**\n         * @param {?} v\n         * @return {?}\n         */\n        v => {\n            this._notifyUrlChangeListeners(v.url, v.state);\n        }));\n    }\n    /**\n     * \\@internal\n     * @param {?=} url\n     * @param {?=} state\n     * @return {?}\n     */\n    _notifyUrlChangeListeners(url = '', state) {\n        this._urlChangeListeners.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn(url, state)));\n    }\n    /**\n     * Subscribes to the platform's `popState` events.\n     *\n     * @param {?} onNext\n     * @param {?=} onThrow\n     * @param {?=} onReturn\n     * @return {?} Subscribed events.\n     */\n    subscribe(onNext, onThrow, onReturn) {\n        return this._subject.subscribe({ next: onNext, error: onThrow, complete: onReturn });\n    }\n}\nLocation.ɵfac = function Location_Factory(t) { return new (t || Location)(ɵngcc0.ɵɵinject(LocationStrategy), ɵngcc0.ɵɵinject(PlatformLocation)); };\n/**\n * Normalizes URL parameters by prepending with `?` if needed.\n *\n * @param params String of URL parameters.\n *\n * @return The normalized URL parameters string.\n */\nLocation.normalizeQueryParams = normalizeQueryParams;\n/**\n * Joins two parts of a URL with a slash if needed.\n *\n * @param start  URL string\n * @param end    URL string\n *\n *\n * @return The joined URL string.\n */\nLocation.joinWithSlash = joinWithSlash;\n/**\n * Removes a trailing slash from a URL string if needed.\n * Looks for the first occurrence of either `#`, `?`, or the end of the\n * line as `/` characters and removes the trailing slash if one exists.\n *\n * @param url URL string.\n *\n * @return The URL string, modified if needed.\n */\nLocation.stripTrailingSlash = stripTrailingSlash;\n/** @nocollapse */\nLocation.ctorParameters = () => [\n    { type: LocationStrategy },\n    { type: PlatformLocation }\n];\n/** @nocollapse */ Location.ɵprov = ɵɵdefineInjectable({ factory: createLocation, token: Location, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Location, [{\n        type: Injectable,\n        args: [{\n                providedIn: 'root',\n                // See #23917\n                useFactory: createLocation\n            }]\n    }], function () { return [{ type: LocationStrategy }, { type: PlatformLocation }]; }, null); })();\nif (false) {\n    /**\n     * Normalizes URL parameters by prepending with `?` if needed.\n     *\n     * \\@param params String of URL parameters.\n     *\n     * \\@return The normalized URL parameters string.\n     * @type {?}\n     */\n    Location.normalizeQueryParams;\n    /**\n     * Joins two parts of a URL with a slash if needed.\n     *\n     * \\@param start  URL string\n     * \\@param end    URL string\n     *\n     *\n     * \\@return The joined URL string.\n     * @type {?}\n     */\n    Location.joinWithSlash;\n    /**\n     * Removes a trailing slash from a URL string if needed.\n     * Looks for the first occurrence of either `#`, `?`, or the end of the\n     * line as `/` characters and removes the trailing slash if one exists.\n     *\n     * \\@param url URL string.\n     *\n     * \\@return The URL string, modified if needed.\n     * @type {?}\n     */\n    Location.stripTrailingSlash;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    Location.prototype._subject;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    Location.prototype._baseHref;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    Location.prototype._platformStrategy;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    Location.prototype._platformLocation;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    Location.prototype._urlChangeListeners;\n}\n/**\n * @return {?}\n */\nfunction createLocation() {\n    return new Location(ɵɵinject((/** @type {?} */ (LocationStrategy))), ɵɵinject((/** @type {?} */ (PlatformLocation))));\n}\n/**\n * @param {?} baseHref\n * @param {?} url\n * @return {?}\n */\nfunction _stripBaseHref(baseHref, url) {\n    return baseHref && url.startsWith(baseHref) ? url.substring(baseHref.length) : url;\n}\n/**\n * @param {?} url\n * @return {?}\n */\nfunction _stripIndexHtml(url) {\n    return url.replace(/\\/index.html$/, '');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/location/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/i18n/currencies.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// THIS CODE IS GENERATED - DO NOT MODIFY\n// See angular/tools/gulp-tasks/cldr/extract.js\n/**\n * \\@internal\n * @type {?}\n */\nconst CURRENCIES_EN = {\n    'ADP': [undefined, undefined, 0],\n    'AFN': [undefined, undefined, 0],\n    'ALL': [undefined, undefined, 0],\n    'AMD': [undefined, undefined, 2],\n    'AOA': [undefined, 'Kz'],\n    'ARS': [undefined, '$'],\n    'AUD': ['A$', '$'],\n    'BAM': [undefined, 'KM'],\n    'BBD': [undefined, '$'],\n    'BDT': [undefined, '৳'],\n    'BHD': [undefined, undefined, 3],\n    'BIF': [undefined, undefined, 0],\n    'BMD': [undefined, '$'],\n    'BND': [undefined, '$'],\n    'BOB': [undefined, 'Bs'],\n    'BRL': ['R$'],\n    'BSD': [undefined, '$'],\n    'BWP': [undefined, 'P'],\n    'BYN': [undefined, 'р.', 2],\n    'BYR': [undefined, undefined, 0],\n    'BZD': [undefined, '$'],\n    'CAD': ['CA$', '$', 2],\n    'CHF': [undefined, undefined, 2],\n    'CLF': [undefined, undefined, 4],\n    'CLP': [undefined, '$', 0],\n    'CNY': ['CN¥', '¥'],\n    'COP': [undefined, '$', 2],\n    'CRC': [undefined, '₡', 2],\n    'CUC': [undefined, '$'],\n    'CUP': [undefined, '$'],\n    'CZK': [undefined, 'Kč', 2],\n    'DJF': [undefined, undefined, 0],\n    'DKK': [undefined, 'kr', 2],\n    'DOP': [undefined, '$'],\n    'EGP': [undefined, 'E£'],\n    'ESP': [undefined, '₧', 0],\n    'EUR': ['€'],\n    'FJD': [undefined, '$'],\n    'FKP': [undefined, '£'],\n    'GBP': ['£'],\n    'GEL': [undefined, '₾'],\n    'GIP': [undefined, '£'],\n    'GNF': [undefined, 'FG', 0],\n    'GTQ': [undefined, 'Q'],\n    'GYD': [undefined, '$', 2],\n    'HKD': ['HK$', '$'],\n    'HNL': [undefined, 'L'],\n    'HRK': [undefined, 'kn'],\n    'HUF': [undefined, 'Ft', 2],\n    'IDR': [undefined, 'Rp', 2],\n    'ILS': ['₪'],\n    'INR': ['₹'],\n    'IQD': [undefined, undefined, 0],\n    'IRR': [undefined, undefined, 0],\n    'ISK': [undefined, 'kr', 0],\n    'ITL': [undefined, undefined, 0],\n    'JMD': [undefined, '$'],\n    'JOD': [undefined, undefined, 3],\n    'JPY': ['¥', undefined, 0],\n    'KHR': [undefined, '៛'],\n    'KMF': [undefined, 'CF', 0],\n    'KPW': [undefined, '₩', 0],\n    'KRW': ['₩', undefined, 0],\n    'KWD': [undefined, undefined, 3],\n    'KYD': [undefined, '$'],\n    'KZT': [undefined, '₸'],\n    'LAK': [undefined, '₭', 0],\n    'LBP': [undefined, 'L£', 0],\n    'LKR': [undefined, 'Rs'],\n    'LRD': [undefined, '$'],\n    'LTL': [undefined, 'Lt'],\n    'LUF': [undefined, undefined, 0],\n    'LVL': [undefined, 'Ls'],\n    'LYD': [undefined, undefined, 3],\n    'MGA': [undefined, 'Ar', 0],\n    'MGF': [undefined, undefined, 0],\n    'MMK': [undefined, 'K', 0],\n    'MNT': [undefined, '₮', 2],\n    'MRO': [undefined, undefined, 0],\n    'MUR': [undefined, 'Rs', 2],\n    'MXN': ['MX$', '$'],\n    'MYR': [undefined, 'RM'],\n    'NAD': [undefined, '$'],\n    'NGN': [undefined, '₦'],\n    'NIO': [undefined, 'C$'],\n    'NOK': [undefined, 'kr', 2],\n    'NPR': [undefined, 'Rs'],\n    'NZD': ['NZ$', '$'],\n    'OMR': [undefined, undefined, 3],\n    'PHP': [undefined, '₱'],\n    'PKR': [undefined, 'Rs', 2],\n    'PLN': [undefined, 'zł'],\n    'PYG': [undefined, '₲', 0],\n    'RON': [undefined, 'lei'],\n    'RSD': [undefined, undefined, 0],\n    'RUB': [undefined, '₽'],\n    'RUR': [undefined, 'р.'],\n    'RWF': [undefined, 'RF', 0],\n    'SBD': [undefined, '$'],\n    'SEK': [undefined, 'kr', 2],\n    'SGD': [undefined, '$'],\n    'SHP': [undefined, '£'],\n    'SLL': [undefined, undefined, 0],\n    'SOS': [undefined, undefined, 0],\n    'SRD': [undefined, '$'],\n    'SSP': [undefined, '£'],\n    'STD': [undefined, undefined, 0],\n    'STN': [undefined, 'Db'],\n    'SYP': [undefined, '£', 0],\n    'THB': [undefined, '฿'],\n    'TMM': [undefined, undefined, 0],\n    'TND': [undefined, undefined, 3],\n    'TOP': [undefined, 'T$'],\n    'TRL': [undefined, undefined, 0],\n    'TRY': [undefined, '₺'],\n    'TTD': [undefined, '$'],\n    'TWD': ['NT$', '$', 2],\n    'TZS': [undefined, undefined, 2],\n    'UAH': [undefined, '₴'],\n    'UGX': [undefined, undefined, 0],\n    'USD': ['$'],\n    'UYI': [undefined, undefined, 0],\n    'UYU': [undefined, '$'],\n    'UYW': [undefined, undefined, 4],\n    'UZS': [undefined, undefined, 2],\n    'VEF': [undefined, 'Bs', 2],\n    'VND': ['₫', undefined, 0],\n    'VUV': [undefined, undefined, 0],\n    'XAF': ['FCFA', undefined, 0],\n    'XCD': ['EC$', '$'],\n    'XOF': ['CFA', undefined, 0],\n    'XPF': ['CFPF', undefined, 0],\n    'XXX': ['¤'],\n    'YER': [undefined, undefined, 0],\n    'ZAR': [undefined, 'R'],\n    'ZMK': [undefined, undefined, 0],\n    'ZMW': [undefined, 'ZK'],\n    'ZWD': [undefined, undefined, 0]\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/i18n/locale_data_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @enum {number} */\nconst NumberFormatStyle = {\n    Decimal: 0,\n    Percent: 1,\n    Currency: 2,\n    Scientific: 3,\n};\nNumberFormatStyle[NumberFormatStyle.Decimal] = 'Decimal';\nNumberFormatStyle[NumberFormatStyle.Percent] = 'Percent';\nNumberFormatStyle[NumberFormatStyle.Currency] = 'Currency';\nNumberFormatStyle[NumberFormatStyle.Scientific] = 'Scientific';\n/** @enum {number} */\nconst Plural = {\n    Zero: 0,\n    One: 1,\n    Two: 2,\n    Few: 3,\n    Many: 4,\n    Other: 5,\n};\nPlural[Plural.Zero] = 'Zero';\nPlural[Plural.One] = 'One';\nPlural[Plural.Two] = 'Two';\nPlural[Plural.Few] = 'Few';\nPlural[Plural.Many] = 'Many';\nPlural[Plural.Other] = 'Other';\n/** @enum {number} */\nconst FormStyle = {\n    Format: 0,\n    Standalone: 1,\n};\nFormStyle[FormStyle.Format] = 'Format';\nFormStyle[FormStyle.Standalone] = 'Standalone';\n/** @enum {number} */\nconst TranslationWidth = {\n    /** 1 character for `en-US`. For example: 'S' */\n    Narrow: 0,\n    /** 3 characters for `en-US`. For example: 'Sun' */\n    Abbreviated: 1,\n    /** Full length for `en-US`. For example: \"Sunday\" */\n    Wide: 2,\n    /** 2 characters for `en-US`, For example: \"Su\" */\n    Short: 3,\n};\nTranslationWidth[TranslationWidth.Narrow] = 'Narrow';\nTranslationWidth[TranslationWidth.Abbreviated] = 'Abbreviated';\nTranslationWidth[TranslationWidth.Wide] = 'Wide';\nTranslationWidth[TranslationWidth.Short] = 'Short';\n/** @enum {number} */\nconst FormatWidth = {\n    /**\n     * For `en-US`, 'M/d/yy, h:mm a'`\n     * (Example: `6/15/15, 9:03 AM`)\n     */\n    Short: 0,\n    /**\n     * For `en-US`, `'MMM d, y, h:mm:ss a'`\n     * (Example: `Jun 15, 2015, 9:03:01 AM`)\n     */\n    Medium: 1,\n    /**\n     * For `en-US`, `'MMMM d, y, h:mm:ss a z'`\n     * (Example: `June 15, 2015 at 9:03:01 AM GMT+1`)\n     */\n    Long: 2,\n    /**\n     * For `en-US`, `'EEEE, MMMM d, y, h:mm:ss a zzzz'`\n     * (Example: `Monday, June 15, 2015 at 9:03:01 AM GMT+01:00`)\n     */\n    Full: 3,\n};\nFormatWidth[FormatWidth.Short] = 'Short';\nFormatWidth[FormatWidth.Medium] = 'Medium';\nFormatWidth[FormatWidth.Long] = 'Long';\nFormatWidth[FormatWidth.Full] = 'Full';\n/** @enum {number} */\nconst NumberSymbol = {\n    /**\n     * Decimal separator.\n     * For `en-US`, the dot character.\n     * Example : 2,345`.`67\n     */\n    Decimal: 0,\n    /**\n     * Grouping separator, typically for thousands.\n     * For `en-US`, the comma character.\n     * Example: 2`,`345.67\n     */\n    Group: 1,\n    /**\n     * List-item separator.\n     * Example: \"one, two, and three\"\n     */\n    List: 2,\n    /**\n     * Sign for percentage (out of 100).\n     * Example: 23.4%\n     */\n    PercentSign: 3,\n    /**\n     * Sign for positive numbers.\n     * Example: +23\n     */\n    PlusSign: 4,\n    /**\n     * Sign for negative numbers.\n     * Example: -23\n     */\n    MinusSign: 5,\n    /**\n     * Computer notation for exponential value (n times a power of 10).\n     * Example: 1.2E3\n     */\n    Exponential: 6,\n    /**\n     * Human-readable format of exponential.\n     * Example: 1.2x103\n     */\n    SuperscriptingExponent: 7,\n    /**\n     * Sign for permille (out of 1000).\n     * Example: 23.4‰\n     */\n    PerMille: 8,\n    /**\n     * Infinity, can be used with plus and minus.\n     * Example: ∞, +∞, -∞\n     */\n    Infinity: 9,\n    /**\n     * Not a number.\n     * Example: NaN\n     */\n    NaN: 10,\n    /**\n     * Symbol used between time units.\n     * Example: 10:52\n     */\n    TimeSeparator: 11,\n    /**\n     * Decimal separator for currency values (fallback to `Decimal`).\n     * Example: $2,345.67\n     */\n    CurrencyDecimal: 12,\n    /**\n     * Group separator for currency values (fallback to `Group`).\n     * Example: $2,345.67\n     */\n    CurrencyGroup: 13,\n};\nNumberSymbol[NumberSymbol.Decimal] = 'Decimal';\nNumberSymbol[NumberSymbol.Group] = 'Group';\nNumberSymbol[NumberSymbol.List] = 'List';\nNumberSymbol[NumberSymbol.PercentSign] = 'PercentSign';\nNumberSymbol[NumberSymbol.PlusSign] = 'PlusSign';\nNumberSymbol[NumberSymbol.MinusSign] = 'MinusSign';\nNumberSymbol[NumberSymbol.Exponential] = 'Exponential';\nNumberSymbol[NumberSymbol.SuperscriptingExponent] = 'SuperscriptingExponent';\nNumberSymbol[NumberSymbol.PerMille] = 'PerMille';\nNumberSymbol[NumberSymbol.Infinity] = 'Infinity';\nNumberSymbol[NumberSymbol.NaN] = 'NaN';\nNumberSymbol[NumberSymbol.TimeSeparator] = 'TimeSeparator';\nNumberSymbol[NumberSymbol.CurrencyDecimal] = 'CurrencyDecimal';\nNumberSymbol[NumberSymbol.CurrencyGroup] = 'CurrencyGroup';\n/** @enum {number} */\nconst WeekDay = {\n    Sunday: 0,\n    Monday: 1,\n    Tuesday: 2,\n    Wednesday: 3,\n    Thursday: 4,\n    Friday: 5,\n    Saturday: 6,\n};\nWeekDay[WeekDay.Sunday] = 'Sunday';\nWeekDay[WeekDay.Monday] = 'Monday';\nWeekDay[WeekDay.Tuesday] = 'Tuesday';\nWeekDay[WeekDay.Wednesday] = 'Wednesday';\nWeekDay[WeekDay.Thursday] = 'Thursday';\nWeekDay[WeekDay.Friday] = 'Friday';\nWeekDay[WeekDay.Saturday] = 'Saturday';\n/**\n * Retrieves the locale ID from the currently loaded locale.\n * The loaded locale could be, for example, a global one rather than a regional one.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code, such as `fr-FR`.\n * @return {?} The locale code. For example, `fr`.\n */\nfunction getLocaleId(locale) {\n    return ɵfindLocaleData(locale)[ɵLocaleDataIndex.LocaleId];\n}\n/**\n * Retrieves day period strings for the given locale.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} formStyle The required grammatical form.\n * @param {?} width The required character width.\n * @return {?} An array of localized period strings. For example, `[AM, PM]` for `en-US`.\n */\nfunction getLocaleDayPeriods(locale, formStyle, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    /** @type {?} */\n    const amPmData = (/** @type {?} */ ([\n        data[ɵLocaleDataIndex.DayPeriodsFormat], data[ɵLocaleDataIndex.DayPeriodsStandalone]\n    ]));\n    /** @type {?} */\n    const amPm = getLastDefinedValue(amPmData, formStyle);\n    return getLastDefinedValue(amPm, width);\n}\n/**\n * Retrieves days of the week for the given locale, using the Gregorian calendar.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} formStyle The required grammatical form.\n * @param {?} width The required character width.\n * @return {?} An array of localized name strings.\n * For example,`[Sunday, Monday, ... Saturday]` for `en-US`.\n */\nfunction getLocaleDayNames(locale, formStyle, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    /** @type {?} */\n    const daysData = (/** @type {?} */ ([data[ɵLocaleDataIndex.DaysFormat], data[ɵLocaleDataIndex.DaysStandalone]]));\n    /** @type {?} */\n    const days = getLastDefinedValue(daysData, formStyle);\n    return getLastDefinedValue(days, width);\n}\n/**\n * Retrieves months of the year for the given locale, using the Gregorian calendar.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} formStyle The required grammatical form.\n * @param {?} width The required character width.\n * @return {?} An array of localized name strings.\n * For example,  `[January, February, ...]` for `en-US`.\n */\nfunction getLocaleMonthNames(locale, formStyle, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    /** @type {?} */\n    const monthsData = (/** @type {?} */ ([data[ɵLocaleDataIndex.MonthsFormat], data[ɵLocaleDataIndex.MonthsStandalone]]));\n    /** @type {?} */\n    const months = getLastDefinedValue(monthsData, formStyle);\n    return getLastDefinedValue(months, width);\n}\n/**\n * Retrieves Gregorian-calendar eras for the given locale.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} width The required character width.\n * @return {?} An array of localized era strings.\n * For example, `[AD, BC]` for `en-US`.\n */\nfunction getLocaleEraNames(locale, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    /** @type {?} */\n    const erasData = (/** @type {?} */ (data[ɵLocaleDataIndex.Eras]));\n    return getLastDefinedValue(erasData, width);\n}\n/**\n * Retrieves the first day of the week for the given locale.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} A day index number, using the 0-based week-day index for `en-US`\n * (Sunday = 0, Monday = 1, ...).\n * For example, for `fr-FR`, returns 1 to indicate that the first day is Monday.\n */\nfunction getLocaleFirstDayOfWeek(locale) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.FirstDayOfWeek];\n}\n/**\n * Range of week days that are considered the week-end for the given locale.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} The range of day values, `[startDay, endDay]`.\n */\nfunction getLocaleWeekEndRange(locale) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.WeekendRange];\n}\n/**\n * Retrieves a localized date-value formating string.\n *\n * @see `FormatWidth` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} width The format type.\n * @return {?} The localized formating string.\n */\nfunction getLocaleDateFormat(locale, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return getLastDefinedValue(data[ɵLocaleDataIndex.DateFormat], width);\n}\n/**\n * Retrieves a localized time-value formatting string.\n *\n * @see `FormatWidth` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} width The format type.\n * @return {?} The localized formatting string.\n */\nfunction getLocaleTimeFormat(locale, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return getLastDefinedValue(data[ɵLocaleDataIndex.TimeFormat], width);\n}\n/**\n * Retrieves a localized date-time formatting string.\n *\n * @see `FormatWidth` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} width The format type.\n * @return {?} The localized formatting string.\n */\nfunction getLocaleDateTimeFormat(locale, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    /** @type {?} */\n    const dateTimeFormatData = (/** @type {?} */ (data[ɵLocaleDataIndex.DateTimeFormat]));\n    return getLastDefinedValue(dateTimeFormatData, width);\n}\n/**\n * Retrieves a localized number symbol that can be used to replace placeholders in number formats.\n * @see `NumberSymbol` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale The locale code.\n * @param {?} symbol The symbol to localize.\n * @return {?} The character for the localized symbol.\n */\nfunction getLocaleNumberSymbol(locale, symbol) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    /** @type {?} */\n    const res = data[ɵLocaleDataIndex.NumberSymbols][symbol];\n    if (typeof res === 'undefined') {\n        if (symbol === NumberSymbol.CurrencyDecimal) {\n            return data[ɵLocaleDataIndex.NumberSymbols][NumberSymbol.Decimal];\n        }\n        else if (symbol === NumberSymbol.CurrencyGroup) {\n            return data[ɵLocaleDataIndex.NumberSymbols][NumberSymbol.Group];\n        }\n    }\n    return res;\n}\n/**\n * Retrieves a number format for a given locale.\n *\n * Numbers are formatted using patterns, like `#,###.00`. For example, the pattern `#,###.00`\n * when used to format the number 12345.678 could result in \"12'345,678\". That would happen if the\n * grouping separator for your language is an apostrophe, and the decimal separator is a comma.\n *\n * <b>Important:</b> The characters `.` `,` `0` `#` (and others below) are special placeholders\n * that stand for the decimal separator, and so on, and are NOT real characters.\n * You must NOT \"translate\" the placeholders. For example, don't change `.` to `,` even though in\n * your language the decimal point is written with a comma. The symbols should be replaced by the\n * local equivalents, using the appropriate `NumberSymbol` for your language.\n *\n * Here are the special characters used in number patterns:\n *\n * | Symbol | Meaning |\n * |--------|---------|\n * | . | Replaced automatically by the character used for the decimal point. |\n * | , | Replaced by the \"grouping\" (thousands) separator. |\n * | 0 | Replaced by a digit (or zero if there aren't enough digits). |\n * | # | Replaced by a digit (or nothing if there aren't enough). |\n * | ¤ | Replaced by a currency symbol, such as $ or USD. |\n * | % | Marks a percent format. The % symbol may change position, but must be retained. |\n * | E | Marks a scientific format. The E symbol may change position, but must be retained. |\n * | ' | Special characters used as literal characters are quoted with ASCII single quotes. |\n *\n * @see `NumberFormatStyle` / [CLDR website](http://cldr.unicode.org/translation/number-patterns) / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} type The type of numeric value to be formatted (such as `Decimal` or `Currency`.)\n * @return {?} The localized format string.\n */\nfunction getLocaleNumberFormat(locale, type) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.NumberFormats][type];\n}\n/**\n * Retrieves the symbol used to represent the currency for the main country\n * corresponding to a given locale. For example, '$' for `en-US`.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} The localized symbol character,\n * or `null` if the main country cannot be determined.\n */\nfunction getLocaleCurrencySymbol(locale) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.CurrencySymbol] || null;\n}\n/**\n * Retrieves the name of the currency for the main country corresponding\n * to a given locale. For example, 'US Dollar' for `en-US`.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} The currency name,\n * or `null` if the main country cannot be determined.\n */\nfunction getLocaleCurrencyName(locale) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.CurrencyName] || null;\n}\n/**\n * Retrieves the default currency code for the given locale.\n *\n * The default is defined as the first currency which is still in use.\n *\n * \\@publicApi\n * @param {?} locale The code of the locale whose currency code we want.\n * @return {?} The code of the default currency for the given locale.\n *\n */\nfunction getLocaleCurrencyCode(locale) {\n    return ɵgetLocaleCurrencyCode(locale);\n}\n/**\n * Retrieves the currency values for a given locale.\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} The currency values.\n */\nfunction getLocaleCurrencies(locale) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.Currencies];\n}\n/**\n * \\@alias core/ɵgetLocalePluralCase\n * \\@publicApi\n * @type {?}\n */\nconst getLocalePluralCase = ɵgetLocalePluralCase;\n/**\n * @param {?} data\n * @return {?}\n */\nfunction checkFullData(data) {\n    if (!data[ɵLocaleDataIndex.ExtraData]) {\n        throw new Error(`Missing extra locale data for the locale \"${data[ɵLocaleDataIndex\n            .LocaleId]}\". Use \"registerLocaleData\" to load new data. See the \"I18n guide\" on angular.io to know more.`);\n    }\n}\n/**\n * Retrieves locale-specific rules used to determine which day period to use\n * when more than one period is defined for a locale.\n *\n * There is a rule for each defined day period. The\n * first rule is applied to the first day period and so on.\n * Fall back to AM/PM when no rules are available.\n *\n * A rule can specify a period as time range, or as a single time value.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n#i18n-pipes).\n *\n * @see `getLocaleExtraDayPeriods()` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} The rules for the locale, a single time value or array of *from-time, to-time*,\n * or null if no periods are available.\n *\n */\nfunction getLocaleExtraDayPeriodRules(locale) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    checkFullData(data);\n    /** @type {?} */\n    const rules = data[ɵLocaleDataIndex.ExtraData][2 /* ExtraDayPeriodsRules */] || [];\n    return rules.map((/**\n     * @param {?} rule\n     * @return {?}\n     */\n    (rule) => {\n        if (typeof rule === 'string') {\n            return extractTime(rule);\n        }\n        return [extractTime(rule[0]), extractTime(rule[1])];\n    }));\n}\n/**\n * Retrieves locale-specific day periods, which indicate roughly how a day is broken up\n * in different languages.\n * For example, for `en-US`, periods are morning, noon, afternoon, evening, and midnight.\n *\n * This functionality is only available when you have loaded the full locale data.\n * See the [\"I18n guide\"](guide/i18n#i18n-pipes).\n *\n * @see `getLocaleExtraDayPeriodRules()` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} formStyle The required grammatical form.\n * @param {?} width The required character width.\n * @return {?} The translated day-period strings.\n */\nfunction getLocaleExtraDayPeriods(locale, formStyle, width) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    checkFullData(data);\n    /** @type {?} */\n    const dayPeriodsData = (/** @type {?} */ ([\n        data[ɵLocaleDataIndex.ExtraData][0 /* ExtraDayPeriodFormats */],\n        data[ɵLocaleDataIndex.ExtraData][1 /* ExtraDayPeriodStandalone */]\n    ]));\n    /** @type {?} */\n    const dayPeriods = getLastDefinedValue(dayPeriodsData, formStyle) || [];\n    return getLastDefinedValue(dayPeriods, width) || [];\n}\n/**\n * Retrieves the writing direction of a specified locale\n * \\@publicApi\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * @param {?} locale A locale code for the locale format rules to use.\n * @return {?} 'rtl' or 'ltr'\n */\nfunction getLocaleDirection(locale) {\n    /** @type {?} */\n    const data = ɵfindLocaleData(locale);\n    return data[ɵLocaleDataIndex.Directionality];\n}\n/**\n * Retrieves the first value that is defined in an array, going backwards from an index position.\n *\n * To avoid repeating the same data (as when the \"format\" and \"standalone\" forms are the same)\n * add the first value to the locale data arrays, and add other values only if they are different.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @template T\n * @param {?} data The data array to retrieve from.\n * @param {?} index A 0-based index into the array to start from.\n * @return {?} The value immediately before the given index position.\n */\nfunction getLastDefinedValue(data, index) {\n    for (let i = index; i > -1; i--) {\n        if (typeof data[i] !== 'undefined') {\n            return data[i];\n        }\n    }\n    throw new Error('Locale data API: locale data undefined');\n}\n/**\n * Extracts the hours and minutes from a string like \"15:45\"\n * @param {?} time\n * @return {?}\n */\nfunction extractTime(time) {\n    const [h, m] = time.split(':');\n    return { hours: +h, minutes: +m };\n}\n/**\n * Retrieves the currency symbol for a given currency code.\n *\n * For example, for the default `en-US` locale, the code `USD` can\n * be represented by the narrow symbol `$` or the wide symbol `US$`.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} code The currency code.\n * @param {?} format The format, `wide` or `narrow`.\n * @param {?=} locale A locale code for the locale format rules to use.\n *\n * @return {?} The symbol, or the currency code if no symbol is available.\n */\nfunction getCurrencySymbol(code, format, locale = 'en') {\n    /** @type {?} */\n    const currency = getLocaleCurrencies(locale)[code] || CURRENCIES_EN[code] || [];\n    /** @type {?} */\n    const symbolNarrow = currency[1 /* SymbolNarrow */];\n    if (format === 'narrow' && typeof symbolNarrow === 'string') {\n        return symbolNarrow;\n    }\n    return currency[0 /* Symbol */] || code;\n}\n// Most currencies have cents, that's why the default is 2\n/** @type {?} */\nconst DEFAULT_NB_OF_CURRENCY_DIGITS = 2;\n/**\n * Reports the number of decimal digits for a given currency.\n * The value depends upon the presence of cents in that particular currency.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} code The currency code.\n * @return {?} The number of decimal digits, typically 0 or 2.\n */\nfunction getNumberOfCurrencyDigits(code) {\n    /** @type {?} */\n    let digits;\n    /** @type {?} */\n    const currency = CURRENCIES_EN[code];\n    if (currency) {\n        digits = currency[2 /* NbOfDigits */];\n    }\n    return typeof digits === 'number' ? digits : DEFAULT_NB_OF_CURRENCY_DIGITS;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/i18n/format_date.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst ISO8601_DATE_REGEX = /^(\\d{4})-?(\\d\\d)-?(\\d\\d)(?:T(\\d\\d)(?::?(\\d\\d)(?::?(\\d\\d)(?:\\.(\\d+))?)?)?(Z|([+-])(\\d\\d):?(\\d\\d))?)?$/;\n//    1        2       3         4          5          6          7          8  9     10      11\n/** @type {?} */\nconst NAMED_FORMATS = {};\n/** @type {?} */\nconst DATE_FORMATS_SPLIT = /((?:[^GyMLwWdEabBhHmsSzZO']+)|(?:'(?:[^']|'')*')|(?:G{1,5}|y{1,4}|M{1,5}|L{1,5}|w{1,2}|W{1}|d{1,2}|E{1,6}|a{1,5}|b{1,5}|B{1,5}|h{1,2}|H{1,2}|m{1,2}|s{1,2}|S{1,3}|z{1,4}|Z{1,5}|O{1,4}))([\\s\\S]*)/;\n/** @enum {number} */\nconst ZoneWidth = {\n    Short: 0,\n    ShortGMT: 1,\n    Long: 2,\n    Extended: 3,\n};\nZoneWidth[ZoneWidth.Short] = 'Short';\nZoneWidth[ZoneWidth.ShortGMT] = 'ShortGMT';\nZoneWidth[ZoneWidth.Long] = 'Long';\nZoneWidth[ZoneWidth.Extended] = 'Extended';\n/** @enum {number} */\nconst DateType = {\n    FullYear: 0,\n    Month: 1,\n    Date: 2,\n    Hours: 3,\n    Minutes: 4,\n    Seconds: 5,\n    FractionalSeconds: 6,\n    Day: 7,\n};\nDateType[DateType.FullYear] = 'FullYear';\nDateType[DateType.Month] = 'Month';\nDateType[DateType.Date] = 'Date';\nDateType[DateType.Hours] = 'Hours';\nDateType[DateType.Minutes] = 'Minutes';\nDateType[DateType.Seconds] = 'Seconds';\nDateType[DateType.FractionalSeconds] = 'FractionalSeconds';\nDateType[DateType.Day] = 'Day';\n/** @enum {number} */\nconst TranslationType = {\n    DayPeriods: 0,\n    Days: 1,\n    Months: 2,\n    Eras: 3,\n};\nTranslationType[TranslationType.DayPeriods] = 'DayPeriods';\nTranslationType[TranslationType.Days] = 'Days';\nTranslationType[TranslationType.Months] = 'Months';\nTranslationType[TranslationType.Eras] = 'Eras';\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Formats a date according to locale rules.\n *\n * @see `DatePipe` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} value The date to format, as a Date, or a number (milliseconds since UTC epoch)\n * or an [ISO date-time string](https://www.w3.org/TR/NOTE-datetime).\n * @param {?} format The date-time components to include. See `DatePipe` for details.\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?=} timezone The time zone. A time zone offset from GMT (such as `'+0430'`),\n * or a standard UTC/GMT or continental US time zone abbreviation.\n * If not specified, uses host system settings.\n *\n * @return {?} The formatted date string.\n *\n */\nfunction formatDate(value, format, locale, timezone) {\n    /** @type {?} */\n    let date = toDate(value);\n    /** @type {?} */\n    const namedFormat = getNamedFormat(locale, format);\n    format = namedFormat || format;\n    /** @type {?} */\n    let parts = [];\n    /** @type {?} */\n    let match;\n    while (format) {\n        match = DATE_FORMATS_SPLIT.exec(format);\n        if (match) {\n            parts = parts.concat(match.slice(1));\n            /** @type {?} */\n            const part = parts.pop();\n            if (!part) {\n                break;\n            }\n            format = part;\n        }\n        else {\n            parts.push(format);\n            break;\n        }\n    }\n    /** @type {?} */\n    let dateTimezoneOffset = date.getTimezoneOffset();\n    if (timezone) {\n        dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n        date = convertTimezoneToLocal(date, timezone, true);\n    }\n    /** @type {?} */\n    let text = '';\n    parts.forEach((/**\n     * @param {?} value\n     * @return {?}\n     */\n    value => {\n        /** @type {?} */\n        const dateFormatter = getDateFormatter(value);\n        text += dateFormatter ?\n            dateFormatter(date, locale, dateTimezoneOffset) :\n            value === '\\'\\'' ? '\\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\\'');\n    }));\n    return text;\n}\n/**\n * @param {?} locale\n * @param {?} format\n * @return {?}\n */\nfunction getNamedFormat(locale, format) {\n    /** @type {?} */\n    const localeId = getLocaleId(locale);\n    NAMED_FORMATS[localeId] = NAMED_FORMATS[localeId] || {};\n    if (NAMED_FORMATS[localeId][format]) {\n        return NAMED_FORMATS[localeId][format];\n    }\n    /** @type {?} */\n    let formatValue = '';\n    switch (format) {\n        case 'shortDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Short);\n            break;\n        case 'mediumDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Medium);\n            break;\n        case 'longDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Long);\n            break;\n        case 'fullDate':\n            formatValue = getLocaleDateFormat(locale, FormatWidth.Full);\n            break;\n        case 'shortTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Short);\n            break;\n        case 'mediumTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Medium);\n            break;\n        case 'longTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Long);\n            break;\n        case 'fullTime':\n            formatValue = getLocaleTimeFormat(locale, FormatWidth.Full);\n            break;\n        case 'short':\n            /** @type {?} */\n            const shortTime = getNamedFormat(locale, 'shortTime');\n            /** @type {?} */\n            const shortDate = getNamedFormat(locale, 'shortDate');\n            formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Short), [shortTime, shortDate]);\n            break;\n        case 'medium':\n            /** @type {?} */\n            const mediumTime = getNamedFormat(locale, 'mediumTime');\n            /** @type {?} */\n            const mediumDate = getNamedFormat(locale, 'mediumDate');\n            formatValue = formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Medium), [mediumTime, mediumDate]);\n            break;\n        case 'long':\n            /** @type {?} */\n            const longTime = getNamedFormat(locale, 'longTime');\n            /** @type {?} */\n            const longDate = getNamedFormat(locale, 'longDate');\n            formatValue =\n                formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Long), [longTime, longDate]);\n            break;\n        case 'full':\n            /** @type {?} */\n            const fullTime = getNamedFormat(locale, 'fullTime');\n            /** @type {?} */\n            const fullDate = getNamedFormat(locale, 'fullDate');\n            formatValue =\n                formatDateTime(getLocaleDateTimeFormat(locale, FormatWidth.Full), [fullTime, fullDate]);\n            break;\n    }\n    if (formatValue) {\n        NAMED_FORMATS[localeId][format] = formatValue;\n    }\n    return formatValue;\n}\n/**\n * @param {?} str\n * @param {?} opt_values\n * @return {?}\n */\nfunction formatDateTime(str, opt_values) {\n    if (opt_values) {\n        str = str.replace(/\\{([^}]+)}/g, (/**\n         * @param {?} match\n         * @param {?} key\n         * @return {?}\n         */\n        function (match, key) {\n            return (opt_values != null && key in opt_values) ? opt_values[key] : match;\n        }));\n    }\n    return str;\n}\n/**\n * @param {?} num\n * @param {?} digits\n * @param {?=} minusSign\n * @param {?=} trim\n * @param {?=} negWrap\n * @return {?}\n */\nfunction padNumber(num, digits, minusSign = '-', trim, negWrap) {\n    /** @type {?} */\n    let neg = '';\n    if (num < 0 || (negWrap && num <= 0)) {\n        if (negWrap) {\n            num = -num + 1;\n        }\n        else {\n            num = -num;\n            neg = minusSign;\n        }\n    }\n    /** @type {?} */\n    let strNum = String(num);\n    while (strNum.length < digits) {\n        strNum = '0' + strNum;\n    }\n    if (trim) {\n        strNum = strNum.substr(strNum.length - digits);\n    }\n    return neg + strNum;\n}\n/**\n * @param {?} milliseconds\n * @param {?} digits\n * @return {?}\n */\nfunction formatFractionalSeconds(milliseconds, digits) {\n    /** @type {?} */\n    const strMs = padNumber(milliseconds, 3);\n    return strMs.substr(0, digits);\n}\n/**\n * Returns a date formatter that transforms a date into its locale digit representation\n * @param {?} name\n * @param {?} size\n * @param {?=} offset\n * @param {?=} trim\n * @param {?=} negWrap\n * @return {?}\n */\nfunction dateGetter(name, size, offset = 0, trim = false, negWrap = false) {\n    return (/**\n     * @param {?} date\n     * @param {?} locale\n     * @return {?}\n     */\n    function (date, locale) {\n        /** @type {?} */\n        let part = getDatePart(name, date);\n        if (offset > 0 || part > -offset) {\n            part += offset;\n        }\n        if (name === DateType.Hours) {\n            if (part === 0 && offset === -12) {\n                part = 12;\n            }\n        }\n        else if (name === DateType.FractionalSeconds) {\n            return formatFractionalSeconds(part, size);\n        }\n        /** @type {?} */\n        const localeMinus = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n        return padNumber(part, size, localeMinus, trim, negWrap);\n    });\n}\n/**\n * @param {?} part\n * @param {?} date\n * @return {?}\n */\nfunction getDatePart(part, date) {\n    switch (part) {\n        case DateType.FullYear:\n            return date.getFullYear();\n        case DateType.Month:\n            return date.getMonth();\n        case DateType.Date:\n            return date.getDate();\n        case DateType.Hours:\n            return date.getHours();\n        case DateType.Minutes:\n            return date.getMinutes();\n        case DateType.Seconds:\n            return date.getSeconds();\n        case DateType.FractionalSeconds:\n            return date.getMilliseconds();\n        case DateType.Day:\n            return date.getDay();\n        default:\n            throw new Error(`Unknown DateType value \"${part}\".`);\n    }\n}\n/**\n * Returns a date formatter that transforms a date into its locale string representation\n * @param {?} name\n * @param {?} width\n * @param {?=} form\n * @param {?=} extended\n * @return {?}\n */\nfunction dateStrGetter(name, width, form = FormStyle.Format, extended = false) {\n    return (/**\n     * @param {?} date\n     * @param {?} locale\n     * @return {?}\n     */\n    function (date, locale) {\n        return getDateTranslation(date, locale, name, width, form, extended);\n    });\n}\n/**\n * Returns the locale translation of a date for a given form, type and width\n * @param {?} date\n * @param {?} locale\n * @param {?} name\n * @param {?} width\n * @param {?} form\n * @param {?} extended\n * @return {?}\n */\nfunction getDateTranslation(date, locale, name, width, form, extended) {\n    switch (name) {\n        case TranslationType.Months:\n            return getLocaleMonthNames(locale, form, width)[date.getMonth()];\n        case TranslationType.Days:\n            return getLocaleDayNames(locale, form, width)[date.getDay()];\n        case TranslationType.DayPeriods:\n            /** @type {?} */\n            const currentHours = date.getHours();\n            /** @type {?} */\n            const currentMinutes = date.getMinutes();\n            if (extended) {\n                /** @type {?} */\n                const rules = getLocaleExtraDayPeriodRules(locale);\n                /** @type {?} */\n                const dayPeriods = getLocaleExtraDayPeriods(locale, form, width);\n                /** @type {?} */\n                let result;\n                rules.forEach((/**\n                 * @param {?} rule\n                 * @param {?} index\n                 * @return {?}\n                 */\n                (rule, index) => {\n                    if (Array.isArray(rule)) {\n                        // morning, afternoon, evening, night\n                        const { hours: hoursFrom, minutes: minutesFrom } = rule[0];\n                        const { hours: hoursTo, minutes: minutesTo } = rule[1];\n                        if (currentHours >= hoursFrom && currentMinutes >= minutesFrom &&\n                            (currentHours < hoursTo ||\n                                (currentHours === hoursTo && currentMinutes < minutesTo))) {\n                            result = dayPeriods[index];\n                        }\n                    }\n                    else { // noon or midnight\n                        // noon or midnight\n                        const { hours, minutes } = rule;\n                        if (hours === currentHours && minutes === currentMinutes) {\n                            result = dayPeriods[index];\n                        }\n                    }\n                }));\n                if (result) {\n                    return result;\n                }\n            }\n            // if no rules for the day periods, we use am/pm by default\n            return getLocaleDayPeriods(locale, form, (/** @type {?} */ (width)))[currentHours < 12 ? 0 : 1];\n        case TranslationType.Eras:\n            return getLocaleEraNames(locale, (/** @type {?} */ (width)))[date.getFullYear() <= 0 ? 0 : 1];\n        default:\n            // This default case is not needed by TypeScript compiler, as the switch is exhaustive.\n            // However Closure Compiler does not understand that and reports an error in typed mode.\n            // The `throw new Error` below works around the problem, and the unexpected: never variable\n            // makes sure tsc still checks this code is unreachable.\n            /** @type {?} */\n            const unexpected = name;\n            throw new Error(`unexpected translation type ${unexpected}`);\n    }\n}\n/**\n * Returns a date formatter that transforms a date and an offset into a timezone with ISO8601 or\n * GMT format depending on the width (eg: short = +0430, short:GMT = GMT+4, long = GMT+04:30,\n * extended = +04:30)\n * @param {?} width\n * @return {?}\n */\nfunction timeZoneGetter(width) {\n    return (/**\n     * @param {?} date\n     * @param {?} locale\n     * @param {?} offset\n     * @return {?}\n     */\n    function (date, locale, offset) {\n        /** @type {?} */\n        const zone = -1 * offset;\n        /** @type {?} */\n        const minusSign = getLocaleNumberSymbol(locale, NumberSymbol.MinusSign);\n        /** @type {?} */\n        const hours = zone > 0 ? Math.floor(zone / 60) : Math.ceil(zone / 60);\n        switch (width) {\n            case ZoneWidth.Short:\n                return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) +\n                    padNumber(Math.abs(zone % 60), 2, minusSign);\n            case ZoneWidth.ShortGMT:\n                return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 1, minusSign);\n            case ZoneWidth.Long:\n                return 'GMT' + ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n                    padNumber(Math.abs(zone % 60), 2, minusSign);\n            case ZoneWidth.Extended:\n                if (offset === 0) {\n                    return 'Z';\n                }\n                else {\n                    return ((zone >= 0) ? '+' : '') + padNumber(hours, 2, minusSign) + ':' +\n                        padNumber(Math.abs(zone % 60), 2, minusSign);\n                }\n            default:\n                throw new Error(`Unknown zone width \"${width}\"`);\n        }\n    });\n}\n/** @type {?} */\nconst JANUARY = 0;\n/** @type {?} */\nconst THURSDAY = 4;\n/**\n * @param {?} year\n * @return {?}\n */\nfunction getFirstThursdayOfYear(year) {\n    /** @type {?} */\n    const firstDayOfYear = (new Date(year, JANUARY, 1)).getDay();\n    return new Date(year, 0, 1 + ((firstDayOfYear <= THURSDAY) ? THURSDAY : THURSDAY + 7) - firstDayOfYear);\n}\n/**\n * @param {?} datetime\n * @return {?}\n */\nfunction getThursdayThisWeek(datetime) {\n    return new Date(datetime.getFullYear(), datetime.getMonth(), datetime.getDate() + (THURSDAY - datetime.getDay()));\n}\n/**\n * @param {?} size\n * @param {?=} monthBased\n * @return {?}\n */\nfunction weekGetter(size, monthBased = false) {\n    return (/**\n     * @param {?} date\n     * @param {?} locale\n     * @return {?}\n     */\n    function (date, locale) {\n        /** @type {?} */\n        let result;\n        if (monthBased) {\n            /** @type {?} */\n            const nbDaysBefore1stDayOfMonth = new Date(date.getFullYear(), date.getMonth(), 1).getDay() - 1;\n            /** @type {?} */\n            const today = date.getDate();\n            result = 1 + Math.floor((today + nbDaysBefore1stDayOfMonth) / 7);\n        }\n        else {\n            /** @type {?} */\n            const firstThurs = getFirstThursdayOfYear(date.getFullYear());\n            /** @type {?} */\n            const thisThurs = getThursdayThisWeek(date);\n            /** @type {?} */\n            const diff = thisThurs.getTime() - firstThurs.getTime();\n            result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week\n        }\n        return padNumber(result, size, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    });\n}\n/** @type {?} */\nconst DATE_FORMATS = {};\n// Based on CLDR formats:\n// See complete list: http://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table\n// See also explanations: http://cldr.unicode.org/translation/date-time\n// TODO(ocombe): support all missing cldr formats: Y, U, Q, D, F, e, c, j, J, C, A, v, V, X, x\n/**\n * @param {?} format\n * @return {?}\n */\nfunction getDateFormatter(format) {\n    if (DATE_FORMATS[format]) {\n        return DATE_FORMATS[format];\n    }\n    /** @type {?} */\n    let formatter;\n    switch (format) {\n        // Era name (AD/BC)\n        case 'G':\n        case 'GG':\n        case 'GGG':\n            formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Abbreviated);\n            break;\n        case 'GGGG':\n            formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Wide);\n            break;\n        case 'GGGGG':\n            formatter = dateStrGetter(TranslationType.Eras, TranslationWidth.Narrow);\n            break;\n        // 1 digit representation of the year, e.g. (AD 1 => 1, AD 199 => 199)\n        case 'y':\n            formatter = dateGetter(DateType.FullYear, 1, 0, false, true);\n            break;\n        // 2 digit representation of the year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10)\n        case 'yy':\n            formatter = dateGetter(DateType.FullYear, 2, 0, true, true);\n            break;\n        // 3 digit representation of the year, padded (000-999). (e.g. AD 2001 => 01, AD 2010 => 10)\n        case 'yyy':\n            formatter = dateGetter(DateType.FullYear, 3, 0, false, true);\n            break;\n        // 4 digit representation of the year (e.g. AD 1 => 0001, AD 2010 => 2010)\n        case 'yyyy':\n            formatter = dateGetter(DateType.FullYear, 4, 0, false, true);\n            break;\n        // Month of the year (1-12), numeric\n        case 'M':\n        case 'L':\n            formatter = dateGetter(DateType.Month, 1, 1);\n            break;\n        case 'MM':\n        case 'LL':\n            formatter = dateGetter(DateType.Month, 2, 1);\n            break;\n        // Month of the year (January, ...), string, format\n        case 'MMM':\n            formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated);\n            break;\n        case 'MMMM':\n            formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Wide);\n            break;\n        case 'MMMMM':\n            formatter = dateStrGetter(TranslationType.Months, TranslationWidth.Narrow);\n            break;\n        // Month of the year (January, ...), string, standalone\n        case 'LLL':\n            formatter =\n                dateStrGetter(TranslationType.Months, TranslationWidth.Abbreviated, FormStyle.Standalone);\n            break;\n        case 'LLLL':\n            formatter =\n                dateStrGetter(TranslationType.Months, TranslationWidth.Wide, FormStyle.Standalone);\n            break;\n        case 'LLLLL':\n            formatter =\n                dateStrGetter(TranslationType.Months, TranslationWidth.Narrow, FormStyle.Standalone);\n            break;\n        // Week of the year (1, ... 52)\n        case 'w':\n            formatter = weekGetter(1);\n            break;\n        case 'ww':\n            formatter = weekGetter(2);\n            break;\n        // Week of the month (1, ...)\n        case 'W':\n            formatter = weekGetter(1, true);\n            break;\n        // Day of the month (1-31)\n        case 'd':\n            formatter = dateGetter(DateType.Date, 1);\n            break;\n        case 'dd':\n            formatter = dateGetter(DateType.Date, 2);\n            break;\n        // Day of the Week\n        case 'E':\n        case 'EE':\n        case 'EEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Abbreviated);\n            break;\n        case 'EEEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Wide);\n            break;\n        case 'EEEEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Narrow);\n            break;\n        case 'EEEEEE':\n            formatter = dateStrGetter(TranslationType.Days, TranslationWidth.Short);\n            break;\n        // Generic period of the day (am-pm)\n        case 'a':\n        case 'aa':\n        case 'aaa':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated);\n            break;\n        case 'aaaa':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide);\n            break;\n        case 'aaaaa':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow);\n            break;\n        // Extended period of the day (midnight, at night, ...), standalone\n        case 'b':\n        case 'bb':\n        case 'bbb':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Standalone, true);\n            break;\n        case 'bbbb':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Standalone, true);\n            break;\n        case 'bbbbb':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Standalone, true);\n            break;\n        // Extended period of the day (midnight, night, ...), standalone\n        case 'B':\n        case 'BB':\n        case 'BBB':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Abbreviated, FormStyle.Format, true);\n            break;\n        case 'BBBB':\n            formatter =\n                dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Wide, FormStyle.Format, true);\n            break;\n        case 'BBBBB':\n            formatter = dateStrGetter(TranslationType.DayPeriods, TranslationWidth.Narrow, FormStyle.Format, true);\n            break;\n        // Hour in AM/PM, (1-12)\n        case 'h':\n            formatter = dateGetter(DateType.Hours, 1, -12);\n            break;\n        case 'hh':\n            formatter = dateGetter(DateType.Hours, 2, -12);\n            break;\n        // Hour of the day (0-23)\n        case 'H':\n            formatter = dateGetter(DateType.Hours, 1);\n            break;\n        // Hour in day, padded (00-23)\n        case 'HH':\n            formatter = dateGetter(DateType.Hours, 2);\n            break;\n        // Minute of the hour (0-59)\n        case 'm':\n            formatter = dateGetter(DateType.Minutes, 1);\n            break;\n        case 'mm':\n            formatter = dateGetter(DateType.Minutes, 2);\n            break;\n        // Second of the minute (0-59)\n        case 's':\n            formatter = dateGetter(DateType.Seconds, 1);\n            break;\n        case 'ss':\n            formatter = dateGetter(DateType.Seconds, 2);\n            break;\n        // Fractional second\n        case 'S':\n            formatter = dateGetter(DateType.FractionalSeconds, 1);\n            break;\n        case 'SS':\n            formatter = dateGetter(DateType.FractionalSeconds, 2);\n            break;\n        case 'SSS':\n            formatter = dateGetter(DateType.FractionalSeconds, 3);\n            break;\n        // Timezone ISO8601 short format (-0430)\n        case 'Z':\n        case 'ZZ':\n        case 'ZZZ':\n            formatter = timeZoneGetter(ZoneWidth.Short);\n            break;\n        // Timezone ISO8601 extended format (-04:30)\n        case 'ZZZZZ':\n            formatter = timeZoneGetter(ZoneWidth.Extended);\n            break;\n        // Timezone GMT short format (GMT+4)\n        case 'O':\n        case 'OO':\n        case 'OOO':\n        // Should be location, but fallback to format O instead because we don't have the data yet\n        case 'z':\n        case 'zz':\n        case 'zzz':\n            formatter = timeZoneGetter(ZoneWidth.ShortGMT);\n            break;\n        // Timezone GMT long format (GMT+0430)\n        case 'OOOO':\n        case 'ZZZZ':\n        // Should be location, but fallback to format O instead because we don't have the data yet\n        case 'zzzz':\n            formatter = timeZoneGetter(ZoneWidth.Long);\n            break;\n        default:\n            return null;\n    }\n    DATE_FORMATS[format] = formatter;\n    return formatter;\n}\n/**\n * @param {?} timezone\n * @param {?} fallback\n * @return {?}\n */\nfunction timezoneToOffset(timezone, fallback) {\n    // Support: IE 9-11 only, Edge 13-15+\n    // IE/Edge do not \"understand\" colon (`:`) in timezone\n    timezone = timezone.replace(/:/g, '');\n    /** @type {?} */\n    const requestedTimezoneOffset = Date.parse('Jan 01, 1970 00:00:00 ' + timezone) / 60000;\n    return isNaN(requestedTimezoneOffset) ? fallback : requestedTimezoneOffset;\n}\n/**\n * @param {?} date\n * @param {?} minutes\n * @return {?}\n */\nfunction addDateMinutes(date, minutes) {\n    date = new Date(date.getTime());\n    date.setMinutes(date.getMinutes() + minutes);\n    return date;\n}\n/**\n * @param {?} date\n * @param {?} timezone\n * @param {?} reverse\n * @return {?}\n */\nfunction convertTimezoneToLocal(date, timezone, reverse) {\n    /** @type {?} */\n    const reverseValue = reverse ? -1 : 1;\n    /** @type {?} */\n    const dateTimezoneOffset = date.getTimezoneOffset();\n    /** @type {?} */\n    const timezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset);\n    return addDateMinutes(date, reverseValue * (timezoneOffset - dateTimezoneOffset));\n}\n/**\n * Converts a value to date.\n *\n * Supported input formats:\n * - `Date`\n * - number: timestamp\n * - string: numeric (e.g. \"1234\"), ISO and date strings in a format supported by\n *   [Date.parse()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse).\n *   Note: ISO strings without time return a date without timeoffset.\n *\n * Throws if unable to convert to a date.\n * @param {?} value\n * @return {?}\n */\nfunction toDate(value) {\n    if (isDate(value)) {\n        return value;\n    }\n    if (typeof value === 'number' && !isNaN(value)) {\n        return new Date(value);\n    }\n    if (typeof value === 'string') {\n        value = value.trim();\n        /** @type {?} */\n        const parsedNb = parseFloat(value);\n        // any string that only contains numbers, like \"1234\" but not like \"1234hello\"\n        if (!isNaN((/** @type {?} */ (value)) - parsedNb)) {\n            return new Date(parsedNb);\n        }\n        if (/^(\\d{4}-\\d{1,2}-\\d{1,2})$/.test(value)) {\n            /* For ISO Strings without time the day, month and year must be extracted from the ISO String\n                  before Date creation to avoid time offset and errors in the new Date.\n                  If we only replace '-' with ',' in the ISO String (\"2015,01,01\"), and try to create a new\n                  date, some browsers (e.g. IE 9) will throw an invalid Date error.\n                  If we leave the '-' (\"2015-01-01\") and try to create a new Date(\"2015-01-01\") the timeoffset\n                  is applied.\n                  Note: ISO months are 0 for January, 1 for February, ... */\n            const [y, m, d] = value.split('-').map((/**\n             * @param {?} val\n             * @return {?}\n             */\n            (val) => +val));\n            return new Date(y, m - 1, d);\n        }\n        /** @type {?} */\n        let match;\n        if (match = value.match(ISO8601_DATE_REGEX)) {\n            return isoStringToDate(match);\n        }\n    }\n    /** @type {?} */\n    const date = new Date((/** @type {?} */ (value)));\n    if (!isDate(date)) {\n        throw new Error(`Unable to convert \"${value}\" into a date`);\n    }\n    return date;\n}\n/**\n * Converts a date in ISO8601 to a Date.\n * Used instead of `Date.parse` because of browser discrepancies.\n * @param {?} match\n * @return {?}\n */\nfunction isoStringToDate(match) {\n    /** @type {?} */\n    const date = new Date(0);\n    /** @type {?} */\n    let tzHour = 0;\n    /** @type {?} */\n    let tzMin = 0;\n    // match[8] means that the string contains \"Z\" (UTC) or a timezone like \"+01:00\" or \"+0100\"\n    /** @type {?} */\n    const dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear;\n    /** @type {?} */\n    const timeSetter = match[8] ? date.setUTCHours : date.setHours;\n    // if there is a timezone defined like \"+01:00\" or \"+0100\"\n    if (match[9]) {\n        tzHour = Number(match[9] + match[10]);\n        tzMin = Number(match[9] + match[11]);\n    }\n    dateSetter.call(date, Number(match[1]), Number(match[2]) - 1, Number(match[3]));\n    /** @type {?} */\n    const h = Number(match[4] || 0) - tzHour;\n    /** @type {?} */\n    const m = Number(match[5] || 0) - tzMin;\n    /** @type {?} */\n    const s = Number(match[6] || 0);\n    /** @type {?} */\n    const ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);\n    timeSetter.call(date, h, m, s, ms);\n    return date;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isDate(value) {\n    return value instanceof Date && !isNaN(value.valueOf());\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/i18n/format_number.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst NUMBER_FORMAT_REGEXP = /^(\\d+)?\\.((\\d+)(-(\\d+))?)?$/;\n/** @type {?} */\nconst MAX_DIGITS = 22;\n/** @type {?} */\nconst DECIMAL_SEP = '.';\n/** @type {?} */\nconst ZERO_CHAR = '0';\n/** @type {?} */\nconst PATTERN_SEP = ';';\n/** @type {?} */\nconst GROUP_SEP = ',';\n/** @type {?} */\nconst DIGIT_CHAR = '#';\n/** @type {?} */\nconst CURRENCY_CHAR = '¤';\n/** @type {?} */\nconst PERCENT_CHAR = '%';\n/**\n * Transforms a number to a locale string based on a style and a format.\n * @param {?} value\n * @param {?} pattern\n * @param {?} locale\n * @param {?} groupSymbol\n * @param {?} decimalSymbol\n * @param {?=} digitsInfo\n * @param {?=} isPercent\n * @return {?}\n */\nfunction formatNumberToLocaleString(value, pattern, locale, groupSymbol, decimalSymbol, digitsInfo, isPercent = false) {\n    /** @type {?} */\n    let formattedText = '';\n    /** @type {?} */\n    let isZero = false;\n    if (!isFinite(value)) {\n        formattedText = getLocaleNumberSymbol(locale, NumberSymbol.Infinity);\n    }\n    else {\n        /** @type {?} */\n        let parsedNumber = parseNumber(value);\n        if (isPercent) {\n            parsedNumber = toPercent(parsedNumber);\n        }\n        /** @type {?} */\n        let minInt = pattern.minInt;\n        /** @type {?} */\n        let minFraction = pattern.minFrac;\n        /** @type {?} */\n        let maxFraction = pattern.maxFrac;\n        if (digitsInfo) {\n            /** @type {?} */\n            const parts = digitsInfo.match(NUMBER_FORMAT_REGEXP);\n            if (parts === null) {\n                throw new Error(`${digitsInfo} is not a valid digit info`);\n            }\n            /** @type {?} */\n            const minIntPart = parts[1];\n            /** @type {?} */\n            const minFractionPart = parts[3];\n            /** @type {?} */\n            const maxFractionPart = parts[5];\n            if (minIntPart != null) {\n                minInt = parseIntAutoRadix(minIntPart);\n            }\n            if (minFractionPart != null) {\n                minFraction = parseIntAutoRadix(minFractionPart);\n            }\n            if (maxFractionPart != null) {\n                maxFraction = parseIntAutoRadix(maxFractionPart);\n            }\n            else if (minFractionPart != null && minFraction > maxFraction) {\n                maxFraction = minFraction;\n            }\n        }\n        roundNumber(parsedNumber, minFraction, maxFraction);\n        /** @type {?} */\n        let digits = parsedNumber.digits;\n        /** @type {?} */\n        let integerLen = parsedNumber.integerLen;\n        /** @type {?} */\n        const exponent = parsedNumber.exponent;\n        /** @type {?} */\n        let decimals = [];\n        isZero = digits.every((/**\n         * @param {?} d\n         * @return {?}\n         */\n        d => !d));\n        // pad zeros for small numbers\n        for (; integerLen < minInt; integerLen++) {\n            digits.unshift(0);\n        }\n        // pad zeros for small numbers\n        for (; integerLen < 0; integerLen++) {\n            digits.unshift(0);\n        }\n        // extract decimals digits\n        if (integerLen > 0) {\n            decimals = digits.splice(integerLen, digits.length);\n        }\n        else {\n            decimals = digits;\n            digits = [0];\n        }\n        // format the integer digits with grouping separators\n        /** @type {?} */\n        const groups = [];\n        if (digits.length >= pattern.lgSize) {\n            groups.unshift(digits.splice(-pattern.lgSize, digits.length).join(''));\n        }\n        while (digits.length > pattern.gSize) {\n            groups.unshift(digits.splice(-pattern.gSize, digits.length).join(''));\n        }\n        if (digits.length) {\n            groups.unshift(digits.join(''));\n        }\n        formattedText = groups.join(getLocaleNumberSymbol(locale, groupSymbol));\n        // append the decimal digits\n        if (decimals.length) {\n            formattedText += getLocaleNumberSymbol(locale, decimalSymbol) + decimals.join('');\n        }\n        if (exponent) {\n            formattedText += getLocaleNumberSymbol(locale, NumberSymbol.Exponential) + '+' + exponent;\n        }\n    }\n    if (value < 0 && !isZero) {\n        formattedText = pattern.negPre + formattedText + pattern.negSuf;\n    }\n    else {\n        formattedText = pattern.posPre + formattedText + pattern.posSuf;\n    }\n    return formattedText;\n}\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Formats a number as currency using locale rules.\n *\n * @see `formatNumber()` / `DecimalPipe` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} value The number to format.\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?} currency A string containing the currency symbol or its name,\n * such as \"$\" or \"Canadian Dollar\". Used in output string, but does not affect the operation\n * of the function.\n * @param {?=} currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217)\n * currency code, such as `USD` for the US dollar and `EUR` for the euro.\n * Used to determine the number of digits in the decimal part.\n * @param {?=} digitsInfo\n * @return {?} The formatted currency value.\n *\n */\nfunction formatCurrency(value, locale, currency, currencyCode, digitsInfo) {\n    /** @type {?} */\n    const format = getLocaleNumberFormat(locale, NumberFormatStyle.Currency);\n    /** @type {?} */\n    const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    pattern.minFrac = getNumberOfCurrencyDigits((/** @type {?} */ (currencyCode)));\n    pattern.maxFrac = pattern.minFrac;\n    /** @type {?} */\n    const res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.CurrencyGroup, NumberSymbol.CurrencyDecimal, digitsInfo);\n    return res\n        .replace(CURRENCY_CHAR, currency)\n        // if we have 2 time the currency character, the second one is ignored\n        .replace(CURRENCY_CHAR, '')\n        // If there is a spacing between currency character and the value and\n        // the currency character is supressed by passing an empty string, the\n        // spacing character would remain as part of the string. Then we\n        // should remove it.\n        .trim();\n}\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Formats a number as a percentage according to locale rules.\n *\n * @see `formatNumber()` / `DecimalPipe` / [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n * \\@publicApi\n *\n * @param {?} value The number to format.\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?=} digitsInfo\n * @return {?} The formatted percentage value.\n *\n */\nfunction formatPercent(value, locale, digitsInfo) {\n    /** @type {?} */\n    const format = getLocaleNumberFormat(locale, NumberFormatStyle.Percent);\n    /** @type {?} */\n    const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    /** @type {?} */\n    const res = formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo, true);\n    return res.replace(new RegExp(PERCENT_CHAR, 'g'), getLocaleNumberSymbol(locale, NumberSymbol.PercentSign));\n}\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Formats a number as text, with group sizing, separator, and other\n * parameters based on the locale.\n *\n * @see [Internationalization (i18n) Guide](https://angular.io/guide/i18n)\n *\n * \\@publicApi\n * @param {?} value The number to format.\n * @param {?} locale A locale code for the locale format rules to use.\n * @param {?=} digitsInfo\n * @return {?} The formatted text string.\n */\nfunction formatNumber(value, locale, digitsInfo) {\n    /** @type {?} */\n    const format = getLocaleNumberFormat(locale, NumberFormatStyle.Decimal);\n    /** @type {?} */\n    const pattern = parseNumberFormat(format, getLocaleNumberSymbol(locale, NumberSymbol.MinusSign));\n    return formatNumberToLocaleString(value, pattern, locale, NumberSymbol.Group, NumberSymbol.Decimal, digitsInfo);\n}\n/**\n * @record\n */\nfunction ParsedNumberFormat() { }\nif (false) {\n    /** @type {?} */\n    ParsedNumberFormat.prototype.minInt;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.minFrac;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.maxFrac;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.posPre;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.posSuf;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.negPre;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.negSuf;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.gSize;\n    /** @type {?} */\n    ParsedNumberFormat.prototype.lgSize;\n}\n/**\n * @param {?} format\n * @param {?=} minusSign\n * @return {?}\n */\nfunction parseNumberFormat(format, minusSign = '-') {\n    /** @type {?} */\n    const p = {\n        minInt: 1,\n        minFrac: 0,\n        maxFrac: 0,\n        posPre: '',\n        posSuf: '',\n        negPre: '',\n        negSuf: '',\n        gSize: 0,\n        lgSize: 0\n    };\n    /** @type {?} */\n    const patternParts = format.split(PATTERN_SEP);\n    /** @type {?} */\n    const positive = patternParts[0];\n    /** @type {?} */\n    const negative = patternParts[1];\n    /** @type {?} */\n    const positiveParts = positive.indexOf(DECIMAL_SEP) !== -1 ?\n        positive.split(DECIMAL_SEP) :\n        [\n            positive.substring(0, positive.lastIndexOf(ZERO_CHAR) + 1),\n            positive.substring(positive.lastIndexOf(ZERO_CHAR) + 1)\n        ];\n    /** @type {?} */\n    const integer = positiveParts[0];\n    /** @type {?} */\n    const fraction = positiveParts[1] || '';\n    p.posPre = integer.substr(0, integer.indexOf(DIGIT_CHAR));\n    for (let i = 0; i < fraction.length; i++) {\n        /** @type {?} */\n        const ch = fraction.charAt(i);\n        if (ch === ZERO_CHAR) {\n            p.minFrac = p.maxFrac = i + 1;\n        }\n        else if (ch === DIGIT_CHAR) {\n            p.maxFrac = i + 1;\n        }\n        else {\n            p.posSuf += ch;\n        }\n    }\n    /** @type {?} */\n    const groups = integer.split(GROUP_SEP);\n    p.gSize = groups[1] ? groups[1].length : 0;\n    p.lgSize = (groups[2] || groups[1]) ? (groups[2] || groups[1]).length : 0;\n    if (negative) {\n        /** @type {?} */\n        const trunkLen = positive.length - p.posPre.length - p.posSuf.length;\n        /** @type {?} */\n        const pos = negative.indexOf(DIGIT_CHAR);\n        p.negPre = negative.substr(0, pos).replace(/'/g, '');\n        p.negSuf = negative.substr(pos + trunkLen).replace(/'/g, '');\n    }\n    else {\n        p.negPre = minusSign + p.posPre;\n        p.negSuf = p.posSuf;\n    }\n    return p;\n}\n/**\n * @record\n */\nfunction ParsedNumber() { }\nif (false) {\n    /** @type {?} */\n    ParsedNumber.prototype.digits;\n    /** @type {?} */\n    ParsedNumber.prototype.exponent;\n    /** @type {?} */\n    ParsedNumber.prototype.integerLen;\n}\n// Transforms a parsed number into a percentage by multiplying it by 100\n/**\n * @param {?} parsedNumber\n * @return {?}\n */\nfunction toPercent(parsedNumber) {\n    // if the number is 0, don't do anything\n    if (parsedNumber.digits[0] === 0) {\n        return parsedNumber;\n    }\n    // Getting the current number of decimals\n    /** @type {?} */\n    const fractionLen = parsedNumber.digits.length - parsedNumber.integerLen;\n    if (parsedNumber.exponent) {\n        parsedNumber.exponent += 2;\n    }\n    else {\n        if (fractionLen === 0) {\n            parsedNumber.digits.push(0, 0);\n        }\n        else if (fractionLen === 1) {\n            parsedNumber.digits.push(0);\n        }\n        parsedNumber.integerLen += 2;\n    }\n    return parsedNumber;\n}\n/**\n * Parses a number.\n * Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/\n * @param {?} num\n * @return {?}\n */\nfunction parseNumber(num) {\n    /** @type {?} */\n    let numStr = Math.abs(num) + '';\n    /** @type {?} */\n    let exponent = 0;\n    /** @type {?} */\n    let digits;\n    /** @type {?} */\n    let integerLen;\n    /** @type {?} */\n    let i;\n    /** @type {?} */\n    let j;\n    /** @type {?} */\n    let zeros;\n    // Decimal point?\n    if ((integerLen = numStr.indexOf(DECIMAL_SEP)) > -1) {\n        numStr = numStr.replace(DECIMAL_SEP, '');\n    }\n    // Exponential form?\n    if ((i = numStr.search(/e/i)) > 0) {\n        // Work out the exponent.\n        if (integerLen < 0)\n            integerLen = i;\n        integerLen += +numStr.slice(i + 1);\n        numStr = numStr.substring(0, i);\n    }\n    else if (integerLen < 0) {\n        // There was no decimal point or exponent so it is an integer.\n        integerLen = numStr.length;\n    }\n    // Count the number of leading zeros.\n    for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */\n    }\n    if (i === (zeros = numStr.length)) {\n        // The digits are all zero.\n        digits = [0];\n        integerLen = 1;\n    }\n    else {\n        // Count the number of trailing zeros\n        zeros--;\n        while (numStr.charAt(zeros) === ZERO_CHAR)\n            zeros--;\n        // Trailing zeros are insignificant so ignore them\n        integerLen -= i;\n        digits = [];\n        // Convert string to array of digits without leading/trailing zeros.\n        for (j = 0; i <= zeros; i++, j++) {\n            digits[j] = Number(numStr.charAt(i));\n        }\n    }\n    // If the number overflows the maximum allowed digits then use an exponent.\n    if (integerLen > MAX_DIGITS) {\n        digits = digits.splice(0, MAX_DIGITS - 1);\n        exponent = integerLen - 1;\n        integerLen = 1;\n    }\n    return { digits, exponent, integerLen };\n}\n/**\n * Round the parsed number to the specified number of decimal places\n * This function changes the parsedNumber in-place\n * @param {?} parsedNumber\n * @param {?} minFrac\n * @param {?} maxFrac\n * @return {?}\n */\nfunction roundNumber(parsedNumber, minFrac, maxFrac) {\n    if (minFrac > maxFrac) {\n        throw new Error(`The minimum number of digits after fraction (${minFrac}) is higher than the maximum (${maxFrac}).`);\n    }\n    /** @type {?} */\n    let digits = parsedNumber.digits;\n    /** @type {?} */\n    let fractionLen = digits.length - parsedNumber.integerLen;\n    /** @type {?} */\n    const fractionSize = Math.min(Math.max(minFrac, fractionLen), maxFrac);\n    // The index of the digit to where rounding is to occur\n    /** @type {?} */\n    let roundAt = fractionSize + parsedNumber.integerLen;\n    /** @type {?} */\n    let digit = digits[roundAt];\n    if (roundAt > 0) {\n        // Drop fractional digits beyond `roundAt`\n        digits.splice(Math.max(parsedNumber.integerLen, roundAt));\n        // Set non-fractional digits beyond `roundAt` to 0\n        for (let j = roundAt; j < digits.length; j++) {\n            digits[j] = 0;\n        }\n    }\n    else {\n        // We rounded to zero so reset the parsedNumber\n        fractionLen = Math.max(0, fractionLen);\n        parsedNumber.integerLen = 1;\n        digits.length = Math.max(1, roundAt = fractionSize + 1);\n        digits[0] = 0;\n        for (let i = 1; i < roundAt; i++)\n            digits[i] = 0;\n    }\n    if (digit >= 5) {\n        if (roundAt - 1 < 0) {\n            for (let k = 0; k > roundAt; k--) {\n                digits.unshift(0);\n                parsedNumber.integerLen++;\n            }\n            digits.unshift(1);\n            parsedNumber.integerLen++;\n        }\n        else {\n            digits[roundAt - 1]++;\n        }\n    }\n    // Pad out with zeros to get the required fraction length\n    for (; fractionLen < Math.max(0, fractionSize); fractionLen++)\n        digits.push(0);\n    /** @type {?} */\n    let dropTrailingZeros = fractionSize !== 0;\n    // Minimal length = nb of decimals required + current nb of integers\n    // Any number besides that is optional and can be removed if it's a trailing 0\n    /** @type {?} */\n    const minLen = minFrac + parsedNumber.integerLen;\n    // Do any carrying, e.g. a digit was rounded up to 10\n    /** @type {?} */\n    const carry = digits.reduceRight((/**\n     * @param {?} carry\n     * @param {?} d\n     * @param {?} i\n     * @param {?} digits\n     * @return {?}\n     */\n    function (carry, d, i, digits) {\n        d = d + carry;\n        digits[i] = d < 10 ? d : d - 10; // d % 10\n        if (dropTrailingZeros) {\n            // Do not keep meaningless fractional trailing zeros (e.g. 15.52000 --> 15.52)\n            if (digits[i] === 0 && i >= minLen) {\n                digits.pop();\n            }\n            else {\n                dropTrailingZeros = false;\n            }\n        }\n        return d >= 10 ? 1 : 0; // Math.floor(d / 10);\n    }), 0);\n    if (carry) {\n        digits.unshift(carry);\n        parsedNumber.integerLen++;\n    }\n}\n/**\n * @param {?} text\n * @return {?}\n */\nfunction parseIntAutoRadix(text) {\n    /** @type {?} */\n    const result = parseInt(text);\n    if (isNaN(result)) {\n        throw new Error('Invalid integer literal when parsing ' + text);\n    }\n    return result;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/i18n/localization.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n * @abstract\n */\nclass NgLocalization {\n}\nif (false) {\n    /**\n     * @abstract\n     * @param {?} value\n     * @param {?=} locale\n     * @return {?}\n     */\n    NgLocalization.prototype.getPluralCategory = function (value, locale) { };\n}\n/**\n * Returns the plural category for a given value.\n * - \"=value\" when the case exists,\n * - the plural category otherwise\n * @param {?} value\n * @param {?} cases\n * @param {?} ngLocalization\n * @param {?=} locale\n * @return {?}\n */\nfunction getPluralCategory(value, cases, ngLocalization, locale) {\n    /** @type {?} */\n    let key = `=${value}`;\n    if (cases.indexOf(key) > -1) {\n        return key;\n    }\n    key = ngLocalization.getPluralCategory(value, locale);\n    if (cases.indexOf(key) > -1) {\n        return key;\n    }\n    if (cases.indexOf('other') > -1) {\n        return 'other';\n    }\n    throw new Error(`No plural message found for value \"${value}\"`);\n}\n/**\n * Returns the plural case based on the locale\n *\n * \\@publicApi\n */\nclass NgLocaleLocalization extends NgLocalization {\n    /**\n     * @param {?} locale\n     */\n    constructor(locale) {\n        super();\n        this.locale = locale;\n    }\n    /**\n     * @param {?} value\n     * @param {?=} locale\n     * @return {?}\n     */\n    getPluralCategory(value, locale) {\n        /** @type {?} */\n        const plural = getLocalePluralCase(locale || this.locale)(value);\n        switch (plural) {\n            case Plural.Zero:\n                return 'zero';\n            case Plural.One:\n                return 'one';\n            case Plural.Two:\n                return 'two';\n            case Plural.Few:\n                return 'few';\n            case Plural.Many:\n                return 'many';\n            default:\n                return 'other';\n        }\n    }\n}\nNgLocaleLocalization.ɵfac = function NgLocaleLocalization_Factory(t) { return new (t || NgLocaleLocalization)(ɵngcc0.ɵɵinject(LOCALE_ID)); };\nNgLocaleLocalization.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: NgLocaleLocalization, factory: NgLocaleLocalization.ɵfac });\n/** @nocollapse */\nNgLocaleLocalization.ctorParameters = () => [\n    { type: String, decorators: [{ type: Inject, args: [LOCALE_ID,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgLocaleLocalization, [{\n        type: Injectable\n    }], function () { return [{ type: String, decorators: [{\n                type: Inject,\n                args: [LOCALE_ID]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @protected\n     */\n    NgLocaleLocalization.prototype.locale;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/i18n/locale_data.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Register global data to be used internally by Angular. See the\n * [\"I18n guide\"](guide/i18n#i18n-pipes) to know how to import additional locale data.\n *\n * The signature registerLocaleData(data: any, extraData?: any) is deprecated since v5.1\n *\n * \\@publicApi\n * @param {?} data\n * @param {?=} localeId\n * @param {?=} extraData\n * @return {?}\n */\nfunction registerLocaleData(data, localeId, extraData) {\n    return ɵregisterLocaleData(data, localeId, extraData);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/cookie.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @param {?} cookieStr\n * @param {?} name\n * @return {?}\n */\nfunction parseCookieValue(cookieStr, name) {\n    name = encodeURIComponent(name);\n    for (const cookie of cookieStr.split(';')) {\n        /** @type {?} */\n        const eqIndex = cookie.indexOf('=');\n        const [cookieName, cookieValue] = eqIndex == -1 ? [cookie, ''] : [cookie.slice(0, eqIndex), cookie.slice(eqIndex + 1)];\n        if (cookieName.trim() === name) {\n            return decodeURIComponent(cookieValue);\n        }\n    }\n    return null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_class.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n *\n * \\@usageNotes\n * ```\n *     <some-element [ngClass]=\"'first second'\">...</some-element>\n *\n *     <some-element [ngClass]=\"['first', 'second']\">...</some-element>\n *\n *     <some-element [ngClass]=\"{'first': true, 'second': true, 'third': false}\">...</some-element>\n *\n *     <some-element [ngClass]=\"stringExp|arrayExp|objExp\">...</some-element>\n *\n *     <some-element [ngClass]=\"{'class1 class2 class3' : true}\">...</some-element>\n * ```\n *\n * \\@description\n *\n * Adds and removes CSS classes on an HTML element.\n *\n * The CSS classes are updated as follows, depending on the type of the expression evaluation:\n * - `string` - the CSS classes listed in the string (space delimited) are added,\n * - `Array` - the CSS classes declared as Array elements are added,\n * - `Object` - keys are CSS classes that get added when the expression given in the value\n *              evaluates to a truthy value, otherwise they are removed.\n *\n * \\@publicApi\n */\nclass NgClass {\n    /**\n     * @param {?} _iterableDiffers\n     * @param {?} _keyValueDiffers\n     * @param {?} _ngEl\n     * @param {?} _renderer\n     */\n    constructor(_iterableDiffers, _keyValueDiffers, _ngEl, _renderer) {\n        this._iterableDiffers = _iterableDiffers;\n        this._keyValueDiffers = _keyValueDiffers;\n        this._ngEl = _ngEl;\n        this._renderer = _renderer;\n        this._iterableDiffer = null;\n        this._keyValueDiffer = null;\n        this._initialClasses = [];\n        this._rawClass = null;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set klass(value) {\n        this._removeClasses(this._initialClasses);\n        this._initialClasses = typeof value === 'string' ? value.split(/\\s+/) : [];\n        this._applyClasses(this._initialClasses);\n        this._applyClasses(this._rawClass);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set ngClass(value) {\n        this._removeClasses(this._rawClass);\n        this._applyClasses(this._initialClasses);\n        this._iterableDiffer = null;\n        this._keyValueDiffer = null;\n        this._rawClass = typeof value === 'string' ? value.split(/\\s+/) : value;\n        if (this._rawClass) {\n            if (ɵisListLikeIterable(this._rawClass)) {\n                this._iterableDiffer = this._iterableDiffers.find(this._rawClass).create();\n            }\n            else {\n                this._keyValueDiffer = this._keyValueDiffers.find(this._rawClass).create();\n            }\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngDoCheck() {\n        if (this._iterableDiffer) {\n            /** @type {?} */\n            const iterableChanges = this._iterableDiffer.diff((/** @type {?} */ (this._rawClass)));\n            if (iterableChanges) {\n                this._applyIterableChanges(iterableChanges);\n            }\n        }\n        else if (this._keyValueDiffer) {\n            /** @type {?} */\n            const keyValueChanges = this._keyValueDiffer.diff((/** @type {?} */ (this._rawClass)));\n            if (keyValueChanges) {\n                this._applyKeyValueChanges(keyValueChanges);\n            }\n        }\n    }\n    /**\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _applyKeyValueChanges(changes) {\n        changes.forEachAddedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => this._toggleClass(record.key, record.currentValue)));\n        changes.forEachChangedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => this._toggleClass(record.key, record.currentValue)));\n        changes.forEachRemovedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => {\n            if (record.previousValue) {\n                this._toggleClass(record.key, false);\n            }\n        }));\n    }\n    /**\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _applyIterableChanges(changes) {\n        changes.forEachAddedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => {\n            if (typeof record.item === 'string') {\n                this._toggleClass(record.item, true);\n            }\n            else {\n                throw new Error(`NgClass can only toggle CSS classes expressed as strings, got ${ɵstringify(record.item)}`);\n            }\n        }));\n        changes.forEachRemovedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => this._toggleClass(record.item, false)));\n    }\n    /**\n     * Applies a collection of CSS classes to the DOM element.\n     *\n     * For argument of type Set and Array CSS class names contained in those collections are always\n     * added.\n     * For argument of type Map CSS class name in the map's key is toggled based on the value (added\n     * for truthy and removed for falsy).\n     * @private\n     * @param {?} rawClassVal\n     * @return {?}\n     */\n    _applyClasses(rawClassVal) {\n        if (rawClassVal) {\n            if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {\n                ((/** @type {?} */ (rawClassVal))).forEach((/**\n                 * @param {?} klass\n                 * @return {?}\n                 */\n                (klass) => this._toggleClass(klass, true)));\n            }\n            else {\n                Object.keys(rawClassVal).forEach((/**\n                 * @param {?} klass\n                 * @return {?}\n                 */\n                klass => this._toggleClass(klass, !!rawClassVal[klass])));\n            }\n        }\n    }\n    /**\n     * Removes a collection of CSS classes from the DOM element. This is mostly useful for cleanup\n     * purposes.\n     * @private\n     * @param {?} rawClassVal\n     * @return {?}\n     */\n    _removeClasses(rawClassVal) {\n        if (rawClassVal) {\n            if (Array.isArray(rawClassVal) || rawClassVal instanceof Set) {\n                ((/** @type {?} */ (rawClassVal))).forEach((/**\n                 * @param {?} klass\n                 * @return {?}\n                 */\n                (klass) => this._toggleClass(klass, false)));\n            }\n            else {\n                Object.keys(rawClassVal).forEach((/**\n                 * @param {?} klass\n                 * @return {?}\n                 */\n                klass => this._toggleClass(klass, false)));\n            }\n        }\n    }\n    /**\n     * @private\n     * @param {?} klass\n     * @param {?} enabled\n     * @return {?}\n     */\n    _toggleClass(klass, enabled) {\n        klass = klass.trim();\n        if (klass) {\n            klass.split(/\\s+/g).forEach((/**\n             * @param {?} klass\n             * @return {?}\n             */\n            klass => {\n                if (enabled) {\n                    this._renderer.addClass(this._ngEl.nativeElement, klass);\n                }\n                else {\n                    this._renderer.removeClass(this._ngEl.nativeElement, klass);\n                }\n            }));\n        }\n    }\n}\nNgClass.ɵfac = function NgClass_Factory(t) { return new (t || NgClass)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.IterableDiffers), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.KeyValueDiffers), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2)); };\nNgClass.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgClass, selectors: [[\"\", \"ngClass\", \"\"]], inputs: { klass: [\"class\", \"klass\"], ngClass: \"ngClass\" } });\n/** @nocollapse */\nNgClass.ctorParameters = () => [\n    { type: IterableDiffers },\n    { type: KeyValueDiffers },\n    { type: ElementRef },\n    { type: Renderer2 }\n];\nNgClass.propDecorators = {\n    klass: [{ type: Input, args: ['class',] }],\n    ngClass: [{ type: Input, args: ['ngClass',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgClass, [{\n        type: Directive,\n        args: [{ selector: '[ngClass]' }]\n    }], function () { return [{ type: ɵngcc0.IterableDiffers }, { type: ɵngcc0.KeyValueDiffers }, { type: ɵngcc0.ElementRef }, { type: ɵngcc0.Renderer2 }]; }, { klass: [{\n            type: Input,\n            args: ['class']\n        }], ngClass: [{\n            type: Input,\n            args: ['ngClass']\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._iterableDiffer;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._keyValueDiffer;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._initialClasses;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._rawClass;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._iterableDiffers;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._keyValueDiffers;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._ngEl;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgClass.prototype._renderer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_component_outlet.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Instantiates a single {\\@link Component} type and inserts its Host View into current View.\n * `NgComponentOutlet` provides a declarative approach for dynamic component creation.\n *\n * `NgComponentOutlet` requires a component type, if a falsy value is set the view will clear and\n * any existing component will get destroyed.\n *\n * \\@usageNotes\n *\n * ### Fine tune control\n *\n * You can control the component creation process by using the following optional attributes:\n *\n * * `ngComponentOutletInjector`: Optional custom {\\@link Injector} that will be used as parent for\n * the Component. Defaults to the injector of the current view container.\n *\n * * `ngComponentOutletContent`: Optional list of projectable nodes to insert into the content\n * section of the component, if exists.\n *\n * * `ngComponentOutletNgModuleFactory`: Optional module factory to allow dynamically loading other\n * module, then load a component from that module.\n *\n * ### Syntax\n *\n * Simple\n * ```\n * <ng-container *ngComponentOutlet=\"componentTypeExpression\"></ng-container>\n * ```\n *\n * Customized injector/content\n * ```\n * <ng-container *ngComponentOutlet=\"componentTypeExpression;\n *                                   injector: injectorExpression;\n *                                   content: contentNodesExpression;\">\n * </ng-container>\n * ```\n *\n * Customized ngModuleFactory\n * ```\n * <ng-container *ngComponentOutlet=\"componentTypeExpression;\n *                                   ngModuleFactory: moduleFactory;\">\n * </ng-container>\n * ```\n *\n * ### A simple example\n *\n * {\\@example common/ngComponentOutlet/ts/module.ts region='SimpleExample'}\n *\n * A more complete example with additional options:\n *\n * {\\@example common/ngComponentOutlet/ts/module.ts region='CompleteExample'}\n *\n * \\@publicApi\n * \\@ngModule CommonModule\n */\nclass NgComponentOutlet {\n    /**\n     * @param {?} _viewContainerRef\n     */\n    constructor(_viewContainerRef) {\n        this._viewContainerRef = _viewContainerRef;\n        this._componentRef = null;\n        this._moduleRef = null;\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        this._viewContainerRef.clear();\n        this._componentRef = null;\n        if (this.ngComponentOutlet) {\n            /** @type {?} */\n            const elInjector = this.ngComponentOutletInjector || this._viewContainerRef.parentInjector;\n            if (changes['ngComponentOutletNgModuleFactory']) {\n                if (this._moduleRef)\n                    this._moduleRef.destroy();\n                if (this.ngComponentOutletNgModuleFactory) {\n                    /** @type {?} */\n                    const parentModule = elInjector.get(NgModuleRef);\n                    this._moduleRef = this.ngComponentOutletNgModuleFactory.create(parentModule.injector);\n                }\n                else {\n                    this._moduleRef = null;\n                }\n            }\n            /** @type {?} */\n            const componentFactoryResolver = this._moduleRef ? this._moduleRef.componentFactoryResolver :\n                elInjector.get(ComponentFactoryResolver);\n            /** @type {?} */\n            const componentFactory = componentFactoryResolver.resolveComponentFactory(this.ngComponentOutlet);\n            this._componentRef = this._viewContainerRef.createComponent(componentFactory, this._viewContainerRef.length, elInjector, this.ngComponentOutletContent);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._moduleRef)\n            this._moduleRef.destroy();\n    }\n}\nNgComponentOutlet.ɵfac = function NgComponentOutlet_Factory(t) { return new (t || NgComponentOutlet)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef)); };\nNgComponentOutlet.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgComponentOutlet, selectors: [[\"\", \"ngComponentOutlet\", \"\"]], inputs: { ngComponentOutlet: \"ngComponentOutlet\", ngComponentOutletInjector: \"ngComponentOutletInjector\", ngComponentOutletContent: \"ngComponentOutletContent\", ngComponentOutletNgModuleFactory: \"ngComponentOutletNgModuleFactory\" }, features: [ɵngcc0.ɵɵNgOnChangesFeature] });\n/** @nocollapse */\nNgComponentOutlet.ctorParameters = () => [\n    { type: ViewContainerRef }\n];\nNgComponentOutlet.propDecorators = {\n    ngComponentOutlet: [{ type: Input }],\n    ngComponentOutletInjector: [{ type: Input }],\n    ngComponentOutletContent: [{ type: Input }],\n    ngComponentOutletNgModuleFactory: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgComponentOutlet, [{\n        type: Directive,\n        args: [{ selector: '[ngComponentOutlet]' }]\n    }], function () { return [{ type: ɵngcc0.ViewContainerRef }]; }, { ngComponentOutlet: [{\n            type: Input\n        }], ngComponentOutletInjector: [{\n            type: Input\n        }], ngComponentOutletContent: [{\n            type: Input\n        }], ngComponentOutletNgModuleFactory: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    NgComponentOutlet.prototype.ngComponentOutlet;\n    /** @type {?} */\n    NgComponentOutlet.prototype.ngComponentOutletInjector;\n    /** @type {?} */\n    NgComponentOutlet.prototype.ngComponentOutletContent;\n    /** @type {?} */\n    NgComponentOutlet.prototype.ngComponentOutletNgModuleFactory;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgComponentOutlet.prototype._componentRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgComponentOutlet.prototype._moduleRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgComponentOutlet.prototype._viewContainerRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_for_of.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n * @template T, U\n */\nclass NgForOfContext {\n    /**\n     * @param {?} $implicit\n     * @param {?} ngForOf\n     * @param {?} index\n     * @param {?} count\n     */\n    constructor($implicit, ngForOf, index, count) {\n        this.$implicit = $implicit;\n        this.ngForOf = ngForOf;\n        this.index = index;\n        this.count = count;\n    }\n    /**\n     * @return {?}\n     */\n    get first() {\n        return this.index === 0;\n    }\n    /**\n     * @return {?}\n     */\n    get last() {\n        return this.index === this.count - 1;\n    }\n    /**\n     * @return {?}\n     */\n    get even() {\n        return this.index % 2 === 0;\n    }\n    /**\n     * @return {?}\n     */\n    get odd() {\n        return !this.even;\n    }\n}\nif (false) {\n    /** @type {?} */\n    NgForOfContext.prototype.$implicit;\n    /** @type {?} */\n    NgForOfContext.prototype.ngForOf;\n    /** @type {?} */\n    NgForOfContext.prototype.index;\n    /** @type {?} */\n    NgForOfContext.prototype.count;\n}\n/**\n * A [structural directive](guide/structural-directives) that renders\n * a template for each item in a collection.\n * The directive is placed on an element, which becomes the parent\n * of the cloned templates.\n *\n * The `ngForOf` directive is generally used in the\n * [shorthand form](guide/structural-directives#the-asterisk--prefix) `*ngFor`.\n * In this form, the template to be rendered for each iteration is the content\n * of an anchor element containing the directive.\n *\n * The following example shows the shorthand syntax with some options,\n * contained in an `<li>` element.\n *\n * ```\n * <li *ngFor=\"let item of items; index as i; trackBy: trackByFn\">...</li>\n * ```\n *\n * The shorthand form expands into a long form that uses the `ngForOf` selector\n * on an `<ng-template>` element.\n * The content of the `<ng-template>` element is the `<li>` element that held the\n * short-form directive.\n *\n * Here is the expanded version of the short-form example.\n *\n * ```\n * <ng-template ngFor let-item [ngForOf]=\"items\" let-i=\"index\" [ngForTrackBy]=\"trackByFn\">\n *   <li>...</li>\n * </ng-template>\n * ```\n *\n * Angular automatically expands the shorthand syntax as it compiles the template.\n * The context for each embedded view is logically merged to the current component\n * context according to its lexical position.\n *\n * When using the shorthand syntax, Angular allows only [one structural directive\n * on an element](guide/structural-directives#one-structural-directive-per-host-element).\n * If you want to iterate conditionally, for example,\n * put the `*ngIf` on a container element that wraps the `*ngFor` element.\n * For futher discussion, see\n * [Structural Directives](guide/structural-directives#one-per-element).\n *\n * \\@usageNotes\n *\n * ### Local variables\n *\n * `NgForOf` provides exported values that can be aliased to local variables.\n * For example:\n *\n *  ```\n * <li *ngFor=\"let user of users; index as i; first as isFirst\">\n *    {{i}}/{{users.length}}. {{user}} <span *ngIf=\"isFirst\">default</span>\n * </li>\n * ```\n *\n * The following exported values can be aliased to local variables:\n *\n * - `$implicit: T`: The value of the individual items in the iterable (`ngForOf`).\n * - `ngForOf: NgIterable<T>`: The value of the iterable expression. Useful when the expression is\n * more complex then a property access, for example when using the async pipe (`userStreams |\n * async`).\n * - `index: number`: The index of the current item in the iterable.\n * - `count: number`: The length of the iterable.\n * - `first: boolean`: True when the item is the first item in the iterable.\n * - `last: boolean`: True when the item is the last item in the iterable.\n * - `even: boolean`: True when the item has an even index in the iterable.\n * - `odd: boolean`: True when the item has an odd index in the iterable.\n *\n * ### Change propagation\n *\n * When the contents of the iterator changes, `NgForOf` makes the corresponding changes to the DOM:\n *\n * * When an item is added, a new instance of the template is added to the DOM.\n * * When an item is removed, its template instance is removed from the DOM.\n * * When items are reordered, their respective templates are reordered in the DOM.\n *\n * Angular uses object identity to track insertions and deletions within the iterator and reproduce\n * those changes in the DOM. This has important implications for animations and any stateful\n * controls that are present, such as `<input>` elements that accept user input. Inserted rows can\n * be animated in, deleted rows can be animated out, and unchanged rows retain any unsaved state\n * such as user input.\n * For more on animations, see [Transitions and Triggers](guide/transition-and-triggers).\n *\n * The identities of elements in the iterator can change while the data does not.\n * This can happen, for example, if the iterator is produced from an RPC to the server, and that\n * RPC is re-run. Even if the data hasn't changed, the second response produces objects with\n * different identities, and Angular must tear down the entire DOM and rebuild it (as if all old\n * elements were deleted and all new elements inserted).\n *\n * To avoid this expensive operation, you can customize the default tracking algorithm.\n * by supplying the `trackBy` option to `NgForOf`.\n * `trackBy` takes a function that has two arguments: `index` and `item`.\n * If `trackBy` is given, Angular tracks changes by the return value of the function.\n *\n * @see [Structural Directives](guide/structural-directives)\n * \\@ngModule CommonModule\n * \\@publicApi\n * @template T, U\n */\nclass NgForOf {\n    /**\n     * @param {?} _viewContainer\n     * @param {?} _template\n     * @param {?} _differs\n     */\n    constructor(_viewContainer, _template, _differs) {\n        this._viewContainer = _viewContainer;\n        this._template = _template;\n        this._differs = _differs;\n        this._ngForOf = null;\n        this._ngForOfDirty = true;\n        this._differ = null;\n    }\n    /**\n     * The value of the iterable expression, which can be used as a\n     * [template input variable](guide/structural-directives#template-input-variable).\n     * @param {?} ngForOf\n     * @return {?}\n     */\n    set ngForOf(ngForOf) {\n        this._ngForOf = ngForOf;\n        this._ngForOfDirty = true;\n    }\n    /**\n     * A function that defines how to track changes for items in the iterable.\n     *\n     * When items are added, moved, or removed in the iterable,\n     * the directive must re-render the appropriate DOM nodes.\n     * To minimize churn in the DOM, only nodes that have changed\n     * are re-rendered.\n     *\n     * By default, the change detector assumes that\n     * the object instance identifies the node in the iterable.\n     * When this function is supplied, the directive uses\n     * the result of calling this function to identify the item node,\n     * rather than the identity of the object itself.\n     *\n     * The function receives two inputs,\n     * the iteration index and the node object ID.\n     * @param {?} fn\n     * @return {?}\n     */\n    set ngForTrackBy(fn) {\n        if (isDevMode() && fn != null && typeof fn !== 'function') {\n            // TODO(vicb): use a log service once there is a public one available\n            if ((/** @type {?} */ (console)) && (/** @type {?} */ (console.warn))) {\n                console.warn(`trackBy must be a function, but received ${JSON.stringify(fn)}. ` +\n                    `See https://angular.io/api/common/NgForOf#change-propagation for more information.`);\n            }\n        }\n        this._trackByFn = fn;\n    }\n    /**\n     * @return {?}\n     */\n    get ngForTrackBy() {\n        return this._trackByFn;\n    }\n    /**\n     * A reference to the template that is stamped out for each item in the iterable.\n     * @see [template reference variable](guide/template-syntax#template-reference-variables--var-)\n     * @param {?} value\n     * @return {?}\n     */\n    set ngForTemplate(value) {\n        // TODO(TS2.1): make TemplateRef<Partial<NgForRowOf<T>>> once we move to TS v2.1\n        // The current type is too restrictive; a template that just uses index, for example,\n        // should be acceptable.\n        if (value) {\n            this._template = value;\n        }\n    }\n    /**\n     * Applies the changes when needed.\n     * @return {?}\n     */\n    ngDoCheck() {\n        if (this._ngForOfDirty) {\n            this._ngForOfDirty = false;\n            // React on ngForOf changes only once all inputs have been initialized\n            /** @type {?} */\n            const value = this._ngForOf;\n            if (!this._differ && value) {\n                try {\n                    this._differ = this._differs.find(value).create(this.ngForTrackBy);\n                }\n                catch (_a) {\n                    throw new Error(`Cannot find a differ supporting object '${value}' of type '${getTypeName(value)}'. NgFor only supports binding to Iterables such as Arrays.`);\n                }\n            }\n        }\n        if (this._differ) {\n            /** @type {?} */\n            const changes = this._differ.diff(this._ngForOf);\n            if (changes)\n                this._applyChanges(changes);\n        }\n    }\n    /**\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _applyChanges(changes) {\n        /** @type {?} */\n        const insertTuples = [];\n        changes.forEachOperation((/**\n         * @param {?} item\n         * @param {?} adjustedPreviousIndex\n         * @param {?} currentIndex\n         * @return {?}\n         */\n        (item, adjustedPreviousIndex, currentIndex) => {\n            if (item.previousIndex == null) {\n                // NgForOf is never \"null\" or \"undefined\" here because the differ detected\n                // that a new item needs to be inserted from the iterable. This implies that\n                // there is an iterable value for \"_ngForOf\".\n                /** @type {?} */\n                const view = this._viewContainer.createEmbeddedView(this._template, new NgForOfContext((/** @type {?} */ (null)), (/** @type {?} */ (this._ngForOf)), -1, -1), currentIndex === null ? undefined : currentIndex);\n                /** @type {?} */\n                const tuple = new RecordViewTuple(item, view);\n                insertTuples.push(tuple);\n            }\n            else if (currentIndex == null) {\n                this._viewContainer.remove(adjustedPreviousIndex === null ? undefined : adjustedPreviousIndex);\n            }\n            else if (adjustedPreviousIndex !== null) {\n                /** @type {?} */\n                const view = (/** @type {?} */ (this._viewContainer.get(adjustedPreviousIndex)));\n                this._viewContainer.move(view, currentIndex);\n                /** @type {?} */\n                const tuple = new RecordViewTuple(item, (/** @type {?} */ (view)));\n                insertTuples.push(tuple);\n            }\n        }));\n        for (let i = 0; i < insertTuples.length; i++) {\n            this._perViewChange(insertTuples[i].view, insertTuples[i].record);\n        }\n        for (let i = 0, ilen = this._viewContainer.length; i < ilen; i++) {\n            /** @type {?} */\n            const viewRef = (/** @type {?} */ (this._viewContainer.get(i)));\n            viewRef.context.index = i;\n            viewRef.context.count = ilen;\n            viewRef.context.ngForOf = (/** @type {?} */ (this._ngForOf));\n        }\n        changes.forEachIdentityChange((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => {\n            /** @type {?} */\n            const viewRef = (/** @type {?} */ (this._viewContainer.get(record.currentIndex)));\n            viewRef.context.$implicit = record.item;\n        }));\n    }\n    /**\n     * @private\n     * @param {?} view\n     * @param {?} record\n     * @return {?}\n     */\n    _perViewChange(view, record) {\n        view.context.$implicit = record.item;\n    }\n    /**\n     * Asserts the correct type of the context for the template that `NgForOf` will render.\n     *\n     * The presence of this method is a signal to the Ivy template type-check compiler that the\n     * `NgForOf` structural directive renders its template with a specific context type.\n     * @template T, U\n     * @param {?} dir\n     * @param {?} ctx\n     * @return {?}\n     */\n    static ngTemplateContextGuard(dir, ctx) {\n        return true;\n    }\n}\nNgForOf.ɵfac = function NgForOf_Factory(t) { return new (t || NgForOf)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.IterableDiffers)); };\nNgForOf.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgForOf, selectors: [[\"\", \"ngFor\", \"\", \"ngForOf\", \"\"]], inputs: { ngForOf: \"ngForOf\", ngForTrackBy: \"ngForTrackBy\", ngForTemplate: \"ngForTemplate\" } });\n/** @nocollapse */\nNgForOf.ctorParameters = () => [\n    { type: ViewContainerRef },\n    { type: TemplateRef },\n    { type: IterableDiffers }\n];\nNgForOf.propDecorators = {\n    ngForOf: [{ type: Input }],\n    ngForTrackBy: [{ type: Input }],\n    ngForTemplate: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgForOf, [{\n        type: Directive,\n        args: [{ selector: '[ngFor][ngForOf]' }]\n    }], function () { return [{ type: ɵngcc0.ViewContainerRef }, { type: ɵngcc0.TemplateRef }, { type: ɵngcc0.IterableDiffers }]; }, { ngForOf: [{\n            type: Input\n        }], ngForTrackBy: [{\n            type: Input\n        }], ngForTemplate: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForOf.prototype._ngForOf;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForOf.prototype._ngForOfDirty;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForOf.prototype._differ;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForOf.prototype._trackByFn;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForOf.prototype._viewContainer;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForOf.prototype._template;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForOf.prototype._differs;\n}\n/**\n * @template T, U\n */\nclass RecordViewTuple {\n    /**\n     * @param {?} record\n     * @param {?} view\n     */\n    constructor(record, view) {\n        this.record = record;\n        this.view = view;\n    }\n}\nif (false) {\n    /** @type {?} */\n    RecordViewTuple.prototype.record;\n    /** @type {?} */\n    RecordViewTuple.prototype.view;\n}\n/**\n * @param {?} type\n * @return {?}\n */\nfunction getTypeName(type) {\n    return type['name'] || typeof type;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_if.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A structural directive that conditionally includes a template based on the value of\n * an expression coerced to Boolean.\n * When the expression evaluates to true, Angular renders the template\n * provided in a `then` clause, and when  false or null,\n * Angular renders the template provided in an optional `else` clause. The default\n * template for the `else` clause is blank.\n *\n * A [shorthand form](guide/structural-directives#the-asterisk--prefix) of the directive,\n * `*ngIf=\"condition\"`, is generally used, provided\n * as an attribute of the anchor element for the inserted template.\n * Angular expands this into a more explicit version, in which the anchor element\n * is contained in an `<ng-template>` element.\n *\n * Simple form with shorthand syntax:\n *\n * ```\n * <div *ngIf=\"condition\">Content to render when condition is true.</div>\n * ```\n *\n * Simple form with expanded syntax:\n *\n * ```\n * <ng-template [ngIf]=\"condition\"><div>Content to render when condition is\n * true.</div></ng-template>\n * ```\n *\n * Form with an \"else\" block:\n *\n * ```\n * <div *ngIf=\"condition; else elseBlock\">Content to render when condition is true.</div>\n * <ng-template #elseBlock>Content to render when condition is false.</ng-template>\n * ```\n *\n * Shorthand form with \"then\" and \"else\" blocks:\n *\n * ```\n * <div *ngIf=\"condition; then thenBlock else elseBlock\"></div>\n * <ng-template #thenBlock>Content to render when condition is true.</ng-template>\n * <ng-template #elseBlock>Content to render when condition is false.</ng-template>\n * ```\n *\n * Form with storing the value locally:\n *\n * ```\n * <div *ngIf=\"condition as value; else elseBlock\">{{value}}</div>\n * <ng-template #elseBlock>Content to render when value is null.</ng-template>\n * ```\n *\n * \\@usageNotes\n *\n * The `*ngIf` directive is most commonly used to conditionally show an inline template,\n * as seen in the following  example.\n * The default `else` template is blank.\n *\n * {\\@example common/ngIf/ts/module.ts region='NgIfSimple'}\n *\n * ### Showing an alternative template using `else`\n *\n * To display a template when `expression` evaluates to false, use an `else` template\n * binding as shown in the following example.\n * The `else` binding points to an `<ng-template>`  element labeled `#elseBlock`.\n * The template can be defined anywhere in the component view, but is typically placed right after\n * `ngIf` for readability.\n *\n * {\\@example common/ngIf/ts/module.ts region='NgIfElse'}\n *\n * ### Using an external `then` template\n *\n * In the previous example, the then-clause template is specified inline, as the content of the\n * tag that contains the `ngIf` directive. You can also specify a template that is defined\n * externally, by referencing a labeled `<ng-template>` element. When you do this, you can\n * change which template to use at runtime, as shown in the following example.\n *\n * {\\@example common/ngIf/ts/module.ts region='NgIfThenElse'}\n *\n * ### Storing a conditional result in a variable\n *\n * You might want to show a set of properties from the same object. If you are waiting\n * for asynchronous data, the object can be undefined.\n * In this case, you can use `ngIf` and store the result of the condition in a local\n * variable as shown in the the following example.\n *\n * {\\@example common/ngIf/ts/module.ts region='NgIfAs'}\n *\n * This code uses only one `AsyncPipe`, so only one subscription is created.\n * The conditional statement stores the result of `userStream|async` in the local variable `user`.\n * You can then bind the local `user` repeatedly.\n *\n * The conditional displays the data only if `userStream` returns a value,\n * so you don't need to use the\n * [safe-navigation-operator](guide/template-syntax#safe-navigation-operator) (`?.`)\n * to guard against null values when accessing properties.\n * You can display an alternative template while waiting for the data.\n *\n * ### Shorthand syntax\n *\n * The shorthand syntax `*ngIf` expands into two separate template specifications\n * for the \"then\" and \"else\" clauses. For example, consider the following shorthand statement,\n * that is meant to show a loading page while waiting for data to be loaded.\n *\n * ```\n * <div class=\"hero-list\" *ngIf=\"heroes else loading\">\n *  ...\n * </div>\n *\n * <ng-template #loading>\n *  <div>Loading...</div>\n * </ng-template>\n * ```\n *\n * You can see that the \"else\" clause references the `<ng-template>`\n * with the `#loading` label, and the template for the \"then\" clause\n * is provided as the content of the anchor element.\n *\n * However, when Angular expands the shorthand syntax, it creates\n * another `<ng-template>` tag, with `ngIf` and `ngIfElse` directives.\n * The anchor element containing the template for the \"then\" clause becomes\n * the content of this unlabeled `<ng-template>` tag.\n *\n * ```\n * <ng-template [ngIf]=\"heroes\" [ngIfElse]=\"loading\">\n *  <div class=\"hero-list\">\n *   ...\n *  </div>\n * </ng-template>\n *\n * <ng-template #loading>\n *  <div>Loading...</div>\n * </ng-template>\n * ```\n *\n * The presence of the implicit template object has implications for the nesting of\n * structural directives. For more on this subject, see\n * [Structural Directives](https://angular.io/guide/structural-directives#one-per-element).\n *\n * \\@ngModule CommonModule\n * \\@publicApi\n * @template T\n */\nclass NgIf {\n    /**\n     * @param {?} _viewContainer\n     * @param {?} templateRef\n     */\n    constructor(_viewContainer, templateRef) {\n        this._viewContainer = _viewContainer;\n        this._context = new NgIfContext();\n        this._thenTemplateRef = null;\n        this._elseTemplateRef = null;\n        this._thenViewRef = null;\n        this._elseViewRef = null;\n        this._thenTemplateRef = templateRef;\n    }\n    /**\n     * The Boolean expression to evaluate as the condition for showing a template.\n     * @param {?} condition\n     * @return {?}\n     */\n    set ngIf(condition) {\n        this._context.$implicit = this._context.ngIf = condition;\n        this._updateView();\n    }\n    /**\n     * A template to show if the condition expression evaluates to true.\n     * @param {?} templateRef\n     * @return {?}\n     */\n    set ngIfThen(templateRef) {\n        assertTemplate('ngIfThen', templateRef);\n        this._thenTemplateRef = templateRef;\n        this._thenViewRef = null; // clear previous view if any.\n        this._updateView();\n    }\n    /**\n     * A template to show if the condition expression evaluates to false.\n     * @param {?} templateRef\n     * @return {?}\n     */\n    set ngIfElse(templateRef) {\n        assertTemplate('ngIfElse', templateRef);\n        this._elseTemplateRef = templateRef;\n        this._elseViewRef = null; // clear previous view if any.\n        this._updateView();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _updateView() {\n        if (this._context.$implicit) {\n            if (!this._thenViewRef) {\n                this._viewContainer.clear();\n                this._elseViewRef = null;\n                if (this._thenTemplateRef) {\n                    this._thenViewRef =\n                        this._viewContainer.createEmbeddedView(this._thenTemplateRef, this._context);\n                }\n            }\n        }\n        else {\n            if (!this._elseViewRef) {\n                this._viewContainer.clear();\n                this._thenViewRef = null;\n                if (this._elseTemplateRef) {\n                    this._elseViewRef =\n                        this._viewContainer.createEmbeddedView(this._elseTemplateRef, this._context);\n                }\n            }\n        }\n    }\n    /**\n     * Asserts the correct type of the context for the template that `NgIf` will render.\n     *\n     * The presence of this method is a signal to the Ivy template type-check compiler that the\n     * `NgIf` structural directive renders its template with a specific context type.\n     * @template T\n     * @param {?} dir\n     * @param {?} ctx\n     * @return {?}\n     */\n    static ngTemplateContextGuard(dir, ctx) {\n        return true;\n    }\n}\nNgIf.ɵfac = function NgIf_Factory(t) { return new (t || NgIf)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef)); };\nNgIf.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgIf, selectors: [[\"\", \"ngIf\", \"\"]], inputs: { ngIf: \"ngIf\", ngIfThen: \"ngIfThen\", ngIfElse: \"ngIfElse\" } });\n/** @nocollapse */\nNgIf.ctorParameters = () => [\n    { type: ViewContainerRef },\n    { type: TemplateRef }\n];\nNgIf.propDecorators = {\n    ngIf: [{ type: Input }],\n    ngIfThen: [{ type: Input }],\n    ngIfElse: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgIf, [{\n        type: Directive,\n        args: [{ selector: '[ngIf]' }]\n    }], function () { return [{ type: ɵngcc0.ViewContainerRef }, { type: ɵngcc0.TemplateRef }]; }, { ngIf: [{\n            type: Input\n        }], ngIfThen: [{\n            type: Input\n        }], ngIfElse: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    NgIf.ngIfUseIfTypeGuard;\n    /**\n     * Assert the correct type of the expression bound to the `ngIf` input within the template.\n     *\n     * The presence of this static field is a signal to the Ivy template type check compiler that\n     * when the `NgIf` structural directive renders its template, the type of the expression bound\n     * to `ngIf` should be narrowed in some way. For `NgIf`, the binding expression itself is used to\n     * narrow its type, which allows the strictNullChecks feature of TypeScript to work with `NgIf`.\n     * @type {?}\n     */\n    NgIf.ngTemplateGuard_ngIf;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgIf.prototype._context;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgIf.prototype._thenTemplateRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgIf.prototype._elseTemplateRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgIf.prototype._thenViewRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgIf.prototype._elseViewRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgIf.prototype._viewContainer;\n}\n/**\n * \\@publicApi\n * @template T\n */\nclass NgIfContext {\n    constructor() {\n        this.$implicit = (/** @type {?} */ (null));\n        this.ngIf = (/** @type {?} */ (null));\n    }\n}\nif (false) {\n    /** @type {?} */\n    NgIfContext.prototype.$implicit;\n    /** @type {?} */\n    NgIfContext.prototype.ngIf;\n}\n/**\n * @param {?} property\n * @param {?} templateRef\n * @return {?}\n */\nfunction assertTemplate(property, templateRef) {\n    /** @type {?} */\n    const isTemplateRefOrNull = !!(!templateRef || templateRef.createEmbeddedView);\n    if (!isTemplateRefOrNull) {\n        throw new Error(`${property} must be a TemplateRef, but received '${ɵstringify(templateRef)}'.`);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_switch.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass SwitchView {\n    /**\n     * @param {?} _viewContainerRef\n     * @param {?} _templateRef\n     */\n    constructor(_viewContainerRef, _templateRef) {\n        this._viewContainerRef = _viewContainerRef;\n        this._templateRef = _templateRef;\n        this._created = false;\n    }\n    /**\n     * @return {?}\n     */\n    create() {\n        this._created = true;\n        this._viewContainerRef.createEmbeddedView(this._templateRef);\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this._created = false;\n        this._viewContainerRef.clear();\n    }\n    /**\n     * @param {?} created\n     * @return {?}\n     */\n    enforceState(created) {\n        if (created && !this._created) {\n            this.create();\n        }\n        else if (!created && this._created) {\n            this.destroy();\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    SwitchView.prototype._created;\n    /**\n     * @type {?}\n     * @private\n     */\n    SwitchView.prototype._viewContainerRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    SwitchView.prototype._templateRef;\n}\n/**\n * \\@ngModule CommonModule\n *\n * \\@description\n * The `[ngSwitch]` directive on a container specifies an expression to match against.\n * The expressions to match are provided by `ngSwitchCase` directives on views within the container.\n * - Every view that matches is rendered.\n * - If there are no matches, a view with the `ngSwitchDefault` directive is rendered.\n * - Elements within the `[NgSwitch]` statement but outside of any `NgSwitchCase`\n * or `ngSwitchDefault` directive are preserved at the location.\n *\n * \\@usageNotes\n * Define a container element for the directive, and specify the switch expression\n * to match against as an attribute:\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n * ```\n *\n * Within the container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *    <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n * ...\n *    <some-element *ngSwitchDefault>...</some-element>\n * </container-element>\n * ```\n *\n * ### Usage Examples\n *\n * The following example shows how to use more than one case to display the same view:\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *   <!-- the same view can be shown in more than one case -->\n *   <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n *   <some-element *ngSwitchCase=\"match_expression_2\">...</some-element>\n *   <some-other-element *ngSwitchCase=\"match_expression_3\">...</some-other-element>\n *   <!--default case when there are no matches -->\n *   <some-element *ngSwitchDefault>...</some-element>\n * </container-element>\n * ```\n *\n * The following example shows how cases can be nested:\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *       <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n *       <some-element *ngSwitchCase=\"match_expression_2\">...</some-element>\n *       <some-other-element *ngSwitchCase=\"match_expression_3\">...</some-other-element>\n *       <ng-container *ngSwitchCase=\"match_expression_3\">\n *         <!-- use a ng-container to group multiple root nodes -->\n *         <inner-element></inner-element>\n *         <inner-other-element></inner-other-element>\n *       </ng-container>\n *       <some-element *ngSwitchDefault>...</some-element>\n *     </container-element>\n * ```\n *\n * \\@publicApi\n * @see `NgSwitchCase`\n * @see `NgSwitchDefault`\n * @see [Structural Directives](guide/structural-directives)\n *\n */\nclass NgSwitch {\n    constructor() {\n        this._defaultUsed = false;\n        this._caseCount = 0;\n        this._lastCaseCheckIndex = 0;\n        this._lastCasesMatched = false;\n    }\n    /**\n     * @param {?} newValue\n     * @return {?}\n     */\n    set ngSwitch(newValue) {\n        this._ngSwitch = newValue;\n        if (this._caseCount === 0) {\n            this._updateDefaultCases(true);\n        }\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _addCase() {\n        return this._caseCount++;\n    }\n    /**\n     * \\@internal\n     * @param {?} view\n     * @return {?}\n     */\n    _addDefault(view) {\n        if (!this._defaultViews) {\n            this._defaultViews = [];\n        }\n        this._defaultViews.push(view);\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _matchCase(value) {\n        /** @type {?} */\n        const matched = value == this._ngSwitch;\n        this._lastCasesMatched = this._lastCasesMatched || matched;\n        this._lastCaseCheckIndex++;\n        if (this._lastCaseCheckIndex === this._caseCount) {\n            this._updateDefaultCases(!this._lastCasesMatched);\n            this._lastCaseCheckIndex = 0;\n            this._lastCasesMatched = false;\n        }\n        return matched;\n    }\n    /**\n     * @private\n     * @param {?} useDefault\n     * @return {?}\n     */\n    _updateDefaultCases(useDefault) {\n        if (this._defaultViews && useDefault !== this._defaultUsed) {\n            this._defaultUsed = useDefault;\n            for (let i = 0; i < this._defaultViews.length; i++) {\n                /** @type {?} */\n                const defaultView = this._defaultViews[i];\n                defaultView.enforceState(useDefault);\n            }\n        }\n    }\n}\nNgSwitch.ɵfac = function NgSwitch_Factory(t) { return new (t || NgSwitch)(); };\nNgSwitch.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgSwitch, selectors: [[\"\", \"ngSwitch\", \"\"]], inputs: { ngSwitch: \"ngSwitch\" } });\nNgSwitch.propDecorators = {\n    ngSwitch: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgSwitch, [{\n        type: Directive,\n        args: [{ selector: '[ngSwitch]' }]\n    }], function () { return []; }, { ngSwitch: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitch.prototype._defaultViews;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitch.prototype._defaultUsed;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitch.prototype._caseCount;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitch.prototype._lastCaseCheckIndex;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitch.prototype._lastCasesMatched;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitch.prototype._ngSwitch;\n}\n/**\n * \\@ngModule CommonModule\n *\n * \\@description\n * Provides a switch case expression to match against an enclosing `ngSwitch` expression.\n * When the expressions match, the given `NgSwitchCase` template is rendered.\n * If multiple match expressions match the switch expression value, all of them are displayed.\n *\n * \\@usageNotes\n *\n * Within a switch container, `*ngSwitchCase` statements specify the match expressions\n * as attributes. Include `*ngSwitchDefault` as the final case.\n *\n * ```\n * <container-element [ngSwitch]=\"switch_expression\">\n *   <some-element *ngSwitchCase=\"match_expression_1\">...</some-element>\n *   ...\n *   <some-element *ngSwitchDefault>...</some-element>\n * </container-element>\n * ```\n *\n * Each switch-case statement contains an in-line HTML template or template reference\n * that defines the subtree to be selected if the value of the match expression\n * matches the value of the switch expression.\n *\n * Unlike JavaScript, which uses strict equality, Angular uses loose equality.\n * This means that the empty string, `\"\"` matches 0.\n *\n * \\@publicApi\n * @see `NgSwitch`\n * @see `NgSwitchDefault`\n *\n */\nclass NgSwitchCase {\n    /**\n     * @param {?} viewContainer\n     * @param {?} templateRef\n     * @param {?} ngSwitch\n     */\n    constructor(viewContainer, templateRef, ngSwitch) {\n        this.ngSwitch = ngSwitch;\n        ngSwitch._addCase();\n        this._view = new SwitchView(viewContainer, templateRef);\n    }\n    /**\n     * Performs case matching. For internal use only.\n     * @return {?}\n     */\n    ngDoCheck() {\n        this._view.enforceState(this.ngSwitch._matchCase(this.ngSwitchCase));\n    }\n}\nNgSwitchCase.ɵfac = function NgSwitchCase_Factory(t) { return new (t || NgSwitchCase)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(NgSwitch, 1)); };\nNgSwitchCase.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgSwitchCase, selectors: [[\"\", \"ngSwitchCase\", \"\"]], inputs: { ngSwitchCase: \"ngSwitchCase\" } });\n/** @nocollapse */\nNgSwitchCase.ctorParameters = () => [\n    { type: ViewContainerRef },\n    { type: TemplateRef },\n    { type: NgSwitch, decorators: [{ type: Host }] }\n];\nNgSwitchCase.propDecorators = {\n    ngSwitchCase: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgSwitchCase, [{\n        type: Directive,\n        args: [{ selector: '[ngSwitchCase]' }]\n    }], function () { return [{ type: ɵngcc0.ViewContainerRef }, { type: ɵngcc0.TemplateRef }, { type: NgSwitch, decorators: [{\n                type: Host\n            }] }]; }, { ngSwitchCase: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitchCase.prototype._view;\n    /**\n     * Stores the HTML template to be selected on match.\n     * @type {?}\n     */\n    NgSwitchCase.prototype.ngSwitchCase;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSwitchCase.prototype.ngSwitch;\n}\n/**\n * \\@ngModule CommonModule\n *\n * \\@description\n *\n * Creates a view that is rendered when no `NgSwitchCase` expressions\n * match the `NgSwitch` expression.\n * This statement should be the final case in an `NgSwitch`.\n *\n * \\@publicApi\n * @see `NgSwitch`\n * @see `NgSwitchCase`\n *\n */\nclass NgSwitchDefault {\n    /**\n     * @param {?} viewContainer\n     * @param {?} templateRef\n     * @param {?} ngSwitch\n     */\n    constructor(viewContainer, templateRef, ngSwitch) {\n        ngSwitch._addDefault(new SwitchView(viewContainer, templateRef));\n    }\n}\nNgSwitchDefault.ɵfac = function NgSwitchDefault_Factory(t) { return new (t || NgSwitchDefault)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(NgSwitch, 1)); };\nNgSwitchDefault.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgSwitchDefault, selectors: [[\"\", \"ngSwitchDefault\", \"\"]] });\n/** @nocollapse */\nNgSwitchDefault.ctorParameters = () => [\n    { type: ViewContainerRef },\n    { type: TemplateRef },\n    { type: NgSwitch, decorators: [{ type: Host }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgSwitchDefault, [{\n        type: Directive,\n        args: [{ selector: '[ngSwitchDefault]' }]\n    }], function () { return [{ type: ɵngcc0.ViewContainerRef }, { type: ɵngcc0.TemplateRef }, { type: NgSwitch, decorators: [{\n                type: Host\n            }] }]; }, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_plural.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n *\n * \\@usageNotes\n * ```\n * <some-element [ngPlural]=\"value\">\n *   <ng-template ngPluralCase=\"=0\">there is nothing</ng-template>\n *   <ng-template ngPluralCase=\"=1\">there is one</ng-template>\n *   <ng-template ngPluralCase=\"few\">there are a few</ng-template>\n * </some-element>\n * ```\n *\n * \\@description\n *\n * Adds / removes DOM sub-trees based on a numeric value. Tailored for pluralization.\n *\n * Displays DOM sub-trees that match the switch expression value, or failing that, DOM sub-trees\n * that match the switch expression's pluralization category.\n *\n * To use this directive you must provide a container element that sets the `[ngPlural]` attribute\n * to a switch expression. Inner elements with a `[ngPluralCase]` will display based on their\n * expression:\n * - if `[ngPluralCase]` is set to a value starting with `=`, it will only display if the value\n *   matches the switch expression exactly,\n * - otherwise, the view will be treated as a \"category match\", and will only display if exact\n *   value matches aren't found and the value maps to its category for the defined locale.\n *\n * See http://cldr.unicode.org/index/cldr-spec/plural-rules\n *\n * \\@publicApi\n */\nclass NgPlural {\n    /**\n     * @param {?} _localization\n     */\n    constructor(_localization) {\n        this._localization = _localization;\n        this._caseViews = {};\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set ngPlural(value) {\n        this._switchValue = value;\n        this._updateView();\n    }\n    /**\n     * @param {?} value\n     * @param {?} switchView\n     * @return {?}\n     */\n    addCase(value, switchView) {\n        this._caseViews[value] = switchView;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _updateView() {\n        this._clearViews();\n        /** @type {?} */\n        const cases = Object.keys(this._caseViews);\n        /** @type {?} */\n        const key = getPluralCategory(this._switchValue, cases, this._localization);\n        this._activateView(this._caseViews[key]);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _clearViews() {\n        if (this._activeView)\n            this._activeView.destroy();\n    }\n    /**\n     * @private\n     * @param {?} view\n     * @return {?}\n     */\n    _activateView(view) {\n        if (view) {\n            this._activeView = view;\n            this._activeView.create();\n        }\n    }\n}\nNgPlural.ɵfac = function NgPlural_Factory(t) { return new (t || NgPlural)(ɵngcc0.ɵɵdirectiveInject(NgLocalization)); };\nNgPlural.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgPlural, selectors: [[\"\", \"ngPlural\", \"\"]], inputs: { ngPlural: \"ngPlural\" } });\n/** @nocollapse */\nNgPlural.ctorParameters = () => [\n    { type: NgLocalization }\n];\nNgPlural.propDecorators = {\n    ngPlural: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgPlural, [{\n        type: Directive,\n        args: [{ selector: '[ngPlural]' }]\n    }], function () { return [{ type: NgLocalization }]; }, { ngPlural: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgPlural.prototype._switchValue;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgPlural.prototype._activeView;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgPlural.prototype._caseViews;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgPlural.prototype._localization;\n}\n/**\n * \\@ngModule CommonModule\n *\n * \\@description\n *\n * Creates a view that will be added/removed from the parent {\\@link NgPlural} when the\n * given expression matches the plural expression according to CLDR rules.\n *\n * \\@usageNotes\n * ```\n * <some-element [ngPlural]=\"value\">\n *   <ng-template ngPluralCase=\"=0\">...</ng-template>\n *   <ng-template ngPluralCase=\"other\">...</ng-template>\n * </some-element>\n * ```\n *\n * See {\\@link NgPlural} for more details and example.\n *\n * \\@publicApi\n */\nclass NgPluralCase {\n    /**\n     * @param {?} value\n     * @param {?} template\n     * @param {?} viewContainer\n     * @param {?} ngPlural\n     */\n    constructor(value, template, viewContainer, ngPlural) {\n        this.value = value;\n        /** @type {?} */\n        const isANumber = !isNaN(Number(value));\n        ngPlural.addCase(isANumber ? `=${value}` : value, new SwitchView(viewContainer, template));\n    }\n}\nNgPluralCase.ɵfac = function NgPluralCase_Factory(t) { return new (t || NgPluralCase)(ɵngcc0.ɵɵinjectAttribute('ngPluralCase'), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(NgPlural, 1)); };\nNgPluralCase.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgPluralCase, selectors: [[\"\", \"ngPluralCase\", \"\"]] });\n/** @nocollapse */\nNgPluralCase.ctorParameters = () => [\n    { type: String, decorators: [{ type: Attribute, args: ['ngPluralCase',] }] },\n    { type: TemplateRef },\n    { type: ViewContainerRef },\n    { type: NgPlural, decorators: [{ type: Host }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgPluralCase, [{\n        type: Directive,\n        args: [{ selector: '[ngPluralCase]' }]\n    }], function () { return [{ type: String, decorators: [{\n                type: Attribute,\n                args: ['ngPluralCase']\n            }] }, { type: ɵngcc0.TemplateRef }, { type: ɵngcc0.ViewContainerRef }, { type: NgPlural, decorators: [{\n                type: Host\n            }] }]; }, null); })();\nif (false) {\n    /** @type {?} */\n    NgPluralCase.prototype.value;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_style.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n *\n * \\@usageNotes\n *\n * Set the font of the containing element to the result of an expression.\n *\n * ```\n * <some-element [ngStyle]=\"{'font-style': styleExp}\">...</some-element>\n * ```\n *\n * Set the width of the containing element to a pixel value returned by an expression.\n *\n * ```\n * <some-element [ngStyle]=\"{'max-width.px': widthExp}\">...</some-element>\n * ```\n *\n * Set a collection of style values using an expression that returns key-value pairs.\n *\n * ```\n * <some-element [ngStyle]=\"objExp\">...</some-element>\n * ```\n *\n * \\@description\n *\n * An attribute directive that updates styles for the containing HTML element.\n * Sets one or more style properties, specified as colon-separated key-value pairs.\n * The key is a style name, with an optional `.<unit>` suffix\n * (such as 'top.px', 'font-style.em').\n * The value is an expression to be evaluated.\n * The resulting non-null value, expressed in the given unit,\n * is assigned to the given style property.\n * If the result of evaluation is null, the corresponding style is removed.\n *\n * \\@publicApi\n */\nclass NgStyle {\n    /**\n     * @param {?} _ngEl\n     * @param {?} _differs\n     * @param {?} _renderer\n     */\n    constructor(_ngEl, _differs, _renderer) {\n        this._ngEl = _ngEl;\n        this._differs = _differs;\n        this._renderer = _renderer;\n        this._ngStyle = null;\n        this._differ = null;\n    }\n    /**\n     * @param {?} values\n     * @return {?}\n     */\n    set ngStyle(values) {\n        this._ngStyle = values;\n        if (!this._differ && values) {\n            this._differ = this._differs.find(values).create();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngDoCheck() {\n        if (this._differ) {\n            /** @type {?} */\n            const changes = this._differ.diff((/** @type {?} */ (this._ngStyle)));\n            if (changes) {\n                this._applyChanges(changes);\n            }\n        }\n    }\n    /**\n     * @private\n     * @param {?} nameAndUnit\n     * @param {?} value\n     * @return {?}\n     */\n    _setStyle(nameAndUnit, value) {\n        const [name, unit] = nameAndUnit.split('.');\n        value = value != null && unit ? `${value}${unit}` : value;\n        if (value != null) {\n            this._renderer.setStyle(this._ngEl.nativeElement, name, (/** @type {?} */ (value)));\n        }\n        else {\n            this._renderer.removeStyle(this._ngEl.nativeElement, name);\n        }\n    }\n    /**\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _applyChanges(changes) {\n        changes.forEachRemovedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => this._setStyle(record.key, null)));\n        changes.forEachAddedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => this._setStyle(record.key, record.currentValue)));\n        changes.forEachChangedItem((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => this._setStyle(record.key, record.currentValue)));\n    }\n}\nNgStyle.ɵfac = function NgStyle_Factory(t) { return new (t || NgStyle)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.KeyValueDiffers), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2)); };\nNgStyle.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgStyle, selectors: [[\"\", \"ngStyle\", \"\"]], inputs: { ngStyle: \"ngStyle\" } });\n/** @nocollapse */\nNgStyle.ctorParameters = () => [\n    { type: ElementRef },\n    { type: KeyValueDiffers },\n    { type: Renderer2 }\n];\nNgStyle.propDecorators = {\n    ngStyle: [{ type: Input, args: ['ngStyle',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgStyle, [{\n        type: Directive,\n        args: [{ selector: '[ngStyle]' }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.KeyValueDiffers }, { type: ɵngcc0.Renderer2 }]; }, { ngStyle: [{\n            type: Input,\n            args: ['ngStyle']\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgStyle.prototype._ngStyle;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgStyle.prototype._differ;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgStyle.prototype._ngEl;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgStyle.prototype._differs;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgStyle.prototype._renderer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/ng_template_outlet.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n *\n * \\@description\n *\n * Inserts an embedded view from a prepared `TemplateRef`.\n *\n * You can attach a context object to the `EmbeddedViewRef` by setting `[ngTemplateOutletContext]`.\n * `[ngTemplateOutletContext]` should be an object, the object's keys will be available for binding\n * by the local template `let` declarations.\n *\n * \\@usageNotes\n * ```\n * <ng-container *ngTemplateOutlet=\"templateRefExp; context: contextExp\"></ng-container>\n * ```\n *\n * Using the key `$implicit` in the context object will set its value as default.\n *\n * ### Example\n *\n * {\\@example common/ngTemplateOutlet/ts/module.ts region='NgTemplateOutlet'}\n *\n * \\@publicApi\n */\nclass NgTemplateOutlet {\n    /**\n     * @param {?} _viewContainerRef\n     */\n    constructor(_viewContainerRef) {\n        this._viewContainerRef = _viewContainerRef;\n        this._viewRef = null;\n        /**\n         * A context object to attach to the {\\@link EmbeddedViewRef}. This should be an\n         * object, the object's keys will be available for binding by the local template `let`\n         * declarations.\n         * Using the key `$implicit` in the context object will set its value as default.\n         */\n        this.ngTemplateOutletContext = null;\n        /**\n         * A string defining the template reference and optionally the context object for the template.\n         */\n        this.ngTemplateOutlet = null;\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        /** @type {?} */\n        const recreateView = this._shouldRecreateView(changes);\n        if (recreateView) {\n            /** @type {?} */\n            const viewContainerRef = this._viewContainerRef;\n            if (this._viewRef) {\n                viewContainerRef.remove(viewContainerRef.indexOf(this._viewRef));\n            }\n            this._viewRef = this.ngTemplateOutlet ?\n                viewContainerRef.createEmbeddedView(this.ngTemplateOutlet, this.ngTemplateOutletContext) :\n                null;\n        }\n        else if (this._viewRef && this.ngTemplateOutletContext) {\n            this._updateExistingContext(this.ngTemplateOutletContext);\n        }\n    }\n    /**\n     * We need to re-create existing embedded view if:\n     * - templateRef has changed\n     * - context has changes\n     *\n     * We mark context object as changed when the corresponding object\n     * shape changes (new properties are added or existing properties are removed).\n     * In other words we consider context with the same properties as \"the same\" even\n     * if object reference changes (see https://github.com/angular/angular/issues/13407).\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _shouldRecreateView(changes) {\n        /** @type {?} */\n        const ctxChange = changes['ngTemplateOutletContext'];\n        return !!changes['ngTemplateOutlet'] || (ctxChange && this._hasContextShapeChanged(ctxChange));\n    }\n    /**\n     * @private\n     * @param {?} ctxChange\n     * @return {?}\n     */\n    _hasContextShapeChanged(ctxChange) {\n        /** @type {?} */\n        const prevCtxKeys = Object.keys(ctxChange.previousValue || {});\n        /** @type {?} */\n        const currCtxKeys = Object.keys(ctxChange.currentValue || {});\n        if (prevCtxKeys.length === currCtxKeys.length) {\n            for (let propName of currCtxKeys) {\n                if (prevCtxKeys.indexOf(propName) === -1) {\n                    return true;\n                }\n            }\n            return false;\n        }\n        return true;\n    }\n    /**\n     * @private\n     * @param {?} ctx\n     * @return {?}\n     */\n    _updateExistingContext(ctx) {\n        for (let propName of Object.keys(ctx)) {\n            ((/** @type {?} */ ((/** @type {?} */ (this._viewRef)).context)))[propName] = ((/** @type {?} */ (this.ngTemplateOutletContext)))[propName];\n        }\n    }\n}\nNgTemplateOutlet.ɵfac = function NgTemplateOutlet_Factory(t) { return new (t || NgTemplateOutlet)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef)); };\nNgTemplateOutlet.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgTemplateOutlet, selectors: [[\"\", \"ngTemplateOutlet\", \"\"]], inputs: { ngTemplateOutletContext: \"ngTemplateOutletContext\", ngTemplateOutlet: \"ngTemplateOutlet\" }, features: [ɵngcc0.ɵɵNgOnChangesFeature] });\n/** @nocollapse */\nNgTemplateOutlet.ctorParameters = () => [\n    { type: ViewContainerRef }\n];\nNgTemplateOutlet.propDecorators = {\n    ngTemplateOutletContext: [{ type: Input }],\n    ngTemplateOutlet: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgTemplateOutlet, [{\n        type: Directive,\n        args: [{ selector: '[ngTemplateOutlet]' }]\n    }], function () { return [{ type: ɵngcc0.ViewContainerRef }]; }, { ngTemplateOutletContext: [{\n            type: Input\n        }], ngTemplateOutlet: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NgTemplateOutlet.prototype._viewRef;\n    /**\n     * A context object to attach to the {\\@link EmbeddedViewRef}. This should be an\n     * object, the object's keys will be available for binding by the local template `let`\n     * declarations.\n     * Using the key `$implicit` in the context object will set its value as default.\n     * @type {?}\n     */\n    NgTemplateOutlet.prototype.ngTemplateOutletContext;\n    /**\n     * A string defining the template reference and optionally the context object for the template.\n     * @type {?}\n     */\n    NgTemplateOutlet.prototype.ngTemplateOutlet;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgTemplateOutlet.prototype._viewContainerRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/directives/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A collection of Angular directives that are likely to be used in each and every Angular\n * application.\n * @type {?}\n */\nconst COMMON_DIRECTIVES = [\n    NgClass,\n    NgComponentOutlet,\n    NgForOf,\n    NgIf,\n    NgTemplateOutlet,\n    NgStyle,\n    NgSwitch,\n    NgSwitchCase,\n    NgSwitchDefault,\n    NgPlural,\n    NgPluralCase,\n];\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/invalid_pipe_argument_error.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} type\n * @param {?} value\n * @return {?}\n */\nfunction invalidPipeArgumentError(type, value) {\n    return Error(`InvalidPipeArgument: '${value}' for pipe '${ɵstringify(type)}'`);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/async_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction SubscriptionStrategy() { }\nif (false) {\n    /**\n     * @param {?} async\n     * @param {?} updateLatestValue\n     * @return {?}\n     */\n    SubscriptionStrategy.prototype.createSubscription = function (async, updateLatestValue) { };\n    /**\n     * @param {?} subscription\n     * @return {?}\n     */\n    SubscriptionStrategy.prototype.dispose = function (subscription) { };\n    /**\n     * @param {?} subscription\n     * @return {?}\n     */\n    SubscriptionStrategy.prototype.onDestroy = function (subscription) { };\n}\nclass ObservableStrategy {\n    /**\n     * @param {?} async\n     * @param {?} updateLatestValue\n     * @return {?}\n     */\n    createSubscription(async, updateLatestValue) {\n        return async.subscribe({\n            next: updateLatestValue,\n            error: (/**\n             * @param {?} e\n             * @return {?}\n             */\n            (e) => {\n                throw e;\n            })\n        });\n    }\n    /**\n     * @param {?} subscription\n     * @return {?}\n     */\n    dispose(subscription) {\n        subscription.unsubscribe();\n    }\n    /**\n     * @param {?} subscription\n     * @return {?}\n     */\n    onDestroy(subscription) {\n        subscription.unsubscribe();\n    }\n}\nclass PromiseStrategy {\n    /**\n     * @param {?} async\n     * @param {?} updateLatestValue\n     * @return {?}\n     */\n    createSubscription(async, updateLatestValue) {\n        return async.then(updateLatestValue, (/**\n         * @param {?} e\n         * @return {?}\n         */\n        e => {\n            throw e;\n        }));\n    }\n    /**\n     * @param {?} subscription\n     * @return {?}\n     */\n    dispose(subscription) { }\n    /**\n     * @param {?} subscription\n     * @return {?}\n     */\n    onDestroy(subscription) { }\n}\n/** @type {?} */\nconst _promiseStrategy = new PromiseStrategy();\n/** @type {?} */\nconst _observableStrategy = new ObservableStrategy();\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Unwraps a value from an asynchronous primitive.\n *\n * The `async` pipe subscribes to an `Observable` or `Promise` and returns the latest value it has\n * emitted. When a new value is emitted, the `async` pipe marks the component to be checked for\n * changes. When the component gets destroyed, the `async` pipe unsubscribes automatically to avoid\n * potential memory leaks.\n *\n * \\@usageNotes\n *\n * ### Examples\n *\n * This example binds a `Promise` to the view. Clicking the `Resolve` button resolves the\n * promise.\n *\n * {\\@example common/pipes/ts/async_pipe.ts region='AsyncPipePromise'}\n *\n * It's also possible to use `async` with Observables. The example below binds the `time` Observable\n * to the view. The Observable continuously updates the view with the current time.\n *\n * {\\@example common/pipes/ts/async_pipe.ts region='AsyncPipeObservable'}\n *\n * \\@publicApi\n */\nclass AsyncPipe {\n    /**\n     * @param {?} _ref\n     */\n    constructor(_ref) {\n        this._ref = _ref;\n        this._latestValue = null;\n        this._latestReturnedValue = null;\n        this._subscription = null;\n        this._obj = null;\n        this._strategy = (/** @type {?} */ (null));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._subscription) {\n            this._dispose();\n        }\n    }\n    /**\n     * @param {?} obj\n     * @return {?}\n     */\n    transform(obj) {\n        if (!this._obj) {\n            if (obj) {\n                this._subscribe(obj);\n            }\n            this._latestReturnedValue = this._latestValue;\n            return this._latestValue;\n        }\n        if (obj !== this._obj) {\n            this._dispose();\n            return this.transform((/** @type {?} */ (obj)));\n        }\n        if (ɵlooseIdentical(this._latestValue, this._latestReturnedValue)) {\n            return this._latestReturnedValue;\n        }\n        this._latestReturnedValue = this._latestValue;\n        return WrappedValue.wrap(this._latestValue);\n    }\n    /**\n     * @private\n     * @param {?} obj\n     * @return {?}\n     */\n    _subscribe(obj) {\n        this._obj = obj;\n        this._strategy = this._selectStrategy(obj);\n        this._subscription = this._strategy.createSubscription(obj, (/**\n         * @param {?} value\n         * @return {?}\n         */\n        (value) => this._updateLatestValue(obj, value)));\n    }\n    /**\n     * @private\n     * @param {?} obj\n     * @return {?}\n     */\n    _selectStrategy(obj) {\n        if (ɵisPromise(obj)) {\n            return _promiseStrategy;\n        }\n        if (ɵisObservable(obj)) {\n            return _observableStrategy;\n        }\n        throw invalidPipeArgumentError(AsyncPipe, obj);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _dispose() {\n        this._strategy.dispose((/** @type {?} */ (this._subscription)));\n        this._latestValue = null;\n        this._latestReturnedValue = null;\n        this._subscription = null;\n        this._obj = null;\n    }\n    /**\n     * @private\n     * @param {?} async\n     * @param {?} value\n     * @return {?}\n     */\n    _updateLatestValue(async, value) {\n        if (async === this._obj) {\n            this._latestValue = value;\n            this._ref.markForCheck();\n        }\n    }\n}\nAsyncPipe.ɵfac = function AsyncPipe_Factory(t) { return new (t || AsyncPipe)(ɵngcc0.ɵɵinjectPipeChangeDetectorRef()); };\nAsyncPipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"async\", type: AsyncPipe, pure: false });\n/** @nocollapse */\nAsyncPipe.ctorParameters = () => [\n    { type: ChangeDetectorRef }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(AsyncPipe, [{\n        type: Pipe,\n        args: [{ name: 'async', pure: false }]\n    }], function () { return [{ type: ɵngcc0.ChangeDetectorRef }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AsyncPipe.prototype._latestValue;\n    /**\n     * @type {?}\n     * @private\n     */\n    AsyncPipe.prototype._latestReturnedValue;\n    /**\n     * @type {?}\n     * @private\n     */\n    AsyncPipe.prototype._subscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    AsyncPipe.prototype._obj;\n    /**\n     * @type {?}\n     * @private\n     */\n    AsyncPipe.prototype._strategy;\n    /**\n     * @type {?}\n     * @private\n     */\n    AsyncPipe.prototype._ref;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/case_conversion_pipes.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Transforms text to all lower case.\n *\n * @see `UpperCasePipe`\n * @see `TitleCasePipe`\n * \\@usageNotes\n *\n * The following example defines a view that allows the user to enter\n * text, and then uses the pipe to convert the input text to all lower case.\n *\n * <code-example path=\"common/pipes/ts/lowerupper_pipe.ts\" region='LowerUpperPipe'></code-example>\n *\n * \\@ngModule CommonModule\n * \\@publicApi\n */\nclass LowerCasePipe {\n    /**\n     * @param {?} value The string to transform to lower case.\n     * @return {?}\n     */\n    transform(value) {\n        if (!value)\n            return value;\n        if (typeof value !== 'string') {\n            throw invalidPipeArgumentError(LowerCasePipe, value);\n        }\n        return value.toLowerCase();\n    }\n}\nLowerCasePipe.ɵfac = function LowerCasePipe_Factory(t) { return new (t || LowerCasePipe)(); };\nLowerCasePipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"lowercase\", type: LowerCasePipe, pure: true });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(LowerCasePipe, [{\n        type: Pipe,\n        args: [{ name: 'lowercase' }]\n    }], null, null); })();\n//\n// Regex below matches any Unicode word and compatible with ES5. In ES2018 the same result\n// can be achieved by using /\\p{L}\\S*/gu and also known as Unicode Property Escapes\n// (http://2ality.com/2017/07/regexp-unicode-property-escapes.html). Since there is no\n// transpilation of this functionality down to ES5 without external tool, the only solution is\n// to use already transpiled form. Example can be found here -\n// https://mothereff.in/regexpu#input=var+regex+%3D+/%5Cp%7BL%7D/u%3B&unicodePropertyEscape=1\n//\n/** @type {?} */\nconst unicodeWordMatch = 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|\\uD800[\\uDC00-\\uDC0B\\uDC0D-\\uDC26\\uDC28-\\uDC3A\\uDC3C\\uDC3D\\uDC3F-\\uDC4D\\uDC50-\\uDC5D\\uDC80-\\uDCFA\\uDE80-\\uDE9C\\uDEA0-\\uDED0\\uDF00-\\uDF1F\\uDF2D-\\uDF40\\uDF42-\\uDF49\\uDF50-\\uDF75\\uDF80-\\uDF9D\\uDFA0-\\uDFC3\\uDFC8-\\uDFCF]|\\uD801[\\uDC00-\\uDC9D\\uDCB0-\\uDCD3\\uDCD8-\\uDCFB\\uDD00-\\uDD27\\uDD30-\\uDD63\\uDE00-\\uDF36\\uDF40-\\uDF55\\uDF60-\\uDF67]|\\uD802[\\uDC00-\\uDC05\\uDC08\\uDC0A-\\uDC35\\uDC37\\uDC38\\uDC3C\\uDC3F-\\uDC55\\uDC60-\\uDC76\\uDC80-\\uDC9E\\uDCE0-\\uDCF2\\uDCF4\\uDCF5\\uDD00-\\uDD15\\uDD20-\\uDD39\\uDD80-\\uDDB7\\uDDBE\\uDDBF\\uDE00\\uDE10-\\uDE13\\uDE15-\\uDE17\\uDE19-\\uDE33\\uDE60-\\uDE7C\\uDE80-\\uDE9C\\uDEC0-\\uDEC7\\uDEC9-\\uDEE4\\uDF00-\\uDF35\\uDF40-\\uDF55\\uDF60-\\uDF72\\uDF80-\\uDF91]|\\uD803[\\uDC00-\\uDC48\\uDC80-\\uDCB2\\uDCC0-\\uDCF2]|\\uD804[\\uDC03-\\uDC37\\uDC83-\\uDCAF\\uDCD0-\\uDCE8\\uDD03-\\uDD26\\uDD50-\\uDD72\\uDD76\\uDD83-\\uDDB2\\uDDC1-\\uDDC4\\uDDDA\\uDDDC\\uDE00-\\uDE11\\uDE13-\\uDE2B\\uDE80-\\uDE86\\uDE88\\uDE8A-\\uDE8D\\uDE8F-\\uDE9D\\uDE9F-\\uDEA8\\uDEB0-\\uDEDE\\uDF05-\\uDF0C\\uDF0F\\uDF10\\uDF13-\\uDF28\\uDF2A-\\uDF30\\uDF32\\uDF33\\uDF35-\\uDF39\\uDF3D\\uDF50\\uDF5D-\\uDF61]|\\uD805[\\uDC00-\\uDC34\\uDC47-\\uDC4A\\uDC80-\\uDCAF\\uDCC4\\uDCC5\\uDCC7\\uDD80-\\uDDAE\\uDDD8-\\uDDDB\\uDE00-\\uDE2F\\uDE44\\uDE80-\\uDEAA\\uDF00-\\uDF19]|\\uD806[\\uDCA0-\\uDCDF\\uDCFF\\uDE00\\uDE0B-\\uDE32\\uDE3A\\uDE50\\uDE5C-\\uDE83\\uDE86-\\uDE89\\uDEC0-\\uDEF8]|\\uD807[\\uDC00-\\uDC08\\uDC0A-\\uDC2E\\uDC40\\uDC72-\\uDC8F\\uDD00-\\uDD06\\uDD08\\uDD09\\uDD0B-\\uDD30\\uDD46]|\\uD808[\\uDC00-\\uDF99]|\\uD809[\\uDC80-\\uDD43]|[\\uD80C\\uD81C-\\uD820\\uD840-\\uD868\\uD86A-\\uD86C\\uD86F-\\uD872\\uD874-\\uD879][\\uDC00-\\uDFFF]|\\uD80D[\\uDC00-\\uDC2E]|\\uD811[\\uDC00-\\uDE46]|\\uD81A[\\uDC00-\\uDE38\\uDE40-\\uDE5E\\uDED0-\\uDEED\\uDF00-\\uDF2F\\uDF40-\\uDF43\\uDF63-\\uDF77\\uDF7D-\\uDF8F]|\\uD81B[\\uDF00-\\uDF44\\uDF50\\uDF93-\\uDF9F\\uDFE0\\uDFE1]|\\uD821[\\uDC00-\\uDFEC]|\\uD822[\\uDC00-\\uDEF2]|\\uD82C[\\uDC00-\\uDD1E\\uDD70-\\uDEFB]|\\uD82F[\\uDC00-\\uDC6A\\uDC70-\\uDC7C\\uDC80-\\uDC88\\uDC90-\\uDC99]|\\uD835[\\uDC00-\\uDC54\\uDC56-\\uDC9C\\uDC9E\\uDC9F\\uDCA2\\uDCA5\\uDCA6\\uDCA9-\\uDCAC\\uDCAE-\\uDCB9\\uDCBB\\uDCBD-\\uDCC3\\uDCC5-\\uDD05\\uDD07-\\uDD0A\\uDD0D-\\uDD14\\uDD16-\\uDD1C\\uDD1E-\\uDD39\\uDD3B-\\uDD3E\\uDD40-\\uDD44\\uDD46\\uDD4A-\\uDD50\\uDD52-\\uDEA5\\uDEA8-\\uDEC0\\uDEC2-\\uDEDA\\uDEDC-\\uDEFA\\uDEFC-\\uDF14\\uDF16-\\uDF34\\uDF36-\\uDF4E\\uDF50-\\uDF6E\\uDF70-\\uDF88\\uDF8A-\\uDFA8\\uDFAA-\\uDFC2\\uDFC4-\\uDFCB]|\\uD83A[\\uDC00-\\uDCC4\\uDD00-\\uDD43]|\\uD83B[\\uDE00-\\uDE03\\uDE05-\\uDE1F\\uDE21\\uDE22\\uDE24\\uDE27\\uDE29-\\uDE32\\uDE34-\\uDE37\\uDE39\\uDE3B\\uDE42\\uDE47\\uDE49\\uDE4B\\uDE4D-\\uDE4F\\uDE51\\uDE52\\uDE54\\uDE57\\uDE59\\uDE5B\\uDE5D\\uDE5F\\uDE61\\uDE62\\uDE64\\uDE67-\\uDE6A\\uDE6C-\\uDE72\\uDE74-\\uDE77\\uDE79-\\uDE7C\\uDE7E\\uDE80-\\uDE89\\uDE8B-\\uDE9B\\uDEA1-\\uDEA3\\uDEA5-\\uDEA9\\uDEAB-\\uDEBB]|\\uD869[\\uDC00-\\uDED6\\uDF00-\\uDFFF]|\\uD86D[\\uDC00-\\uDF34\\uDF40-\\uDFFF]|\\uD86E[\\uDC00-\\uDC1D\\uDC20-\\uDFFF]|\\uD873[\\uDC00-\\uDEA1\\uDEB0-\\uDFFF]|\\uD87A[\\uDC00-\\uDFE0]|\\uD87E[\\uDC00-\\uDE1D])\\S*/g;\n/**\n * Transforms text to title case.\n * Capitalizes the first letter of each word and transforms the\n * rest of the word to lower case.\n * Words are delimited by any whitespace character, such as a space, tab, or line-feed character.\n *\n * @see `LowerCasePipe`\n * @see `UpperCasePipe`\n *\n * \\@usageNotes\n * The following example shows the result of transforming various strings into title case.\n *\n * <code-example path=\"common/pipes/ts/titlecase_pipe.ts\" region='TitleCasePipe'></code-example>\n *\n * \\@ngModule CommonModule\n * \\@publicApi\n */\nclass TitleCasePipe {\n    /**\n     * @param {?} value The string to transform to title case.\n     * @return {?}\n     */\n    transform(value) {\n        if (!value)\n            return value;\n        if (typeof value !== 'string') {\n            throw invalidPipeArgumentError(TitleCasePipe, value);\n        }\n        return value.replace(unicodeWordMatch, ((/**\n         * @param {?} txt\n         * @return {?}\n         */\n        txt => txt[0].toUpperCase() + txt.substr(1).toLowerCase())));\n    }\n}\nTitleCasePipe.ɵfac = function TitleCasePipe_Factory(t) { return new (t || TitleCasePipe)(); };\nTitleCasePipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"titlecase\", type: TitleCasePipe, pure: true });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(TitleCasePipe, [{\n        type: Pipe,\n        args: [{ name: 'titlecase' }]\n    }], null, null); })();\n/**\n * Transforms text to all upper case.\n * @see `LowerCasePipe`\n * @see `TitleCasePipe`\n *\n * \\@ngModule CommonModule\n * \\@publicApi\n */\nclass UpperCasePipe {\n    /**\n     * @param {?} value The string to transform to upper case.\n     * @return {?}\n     */\n    transform(value) {\n        if (!value)\n            return value;\n        if (typeof value !== 'string') {\n            throw invalidPipeArgumentError(UpperCasePipe, value);\n        }\n        return value.toUpperCase();\n    }\n}\nUpperCasePipe.ɵfac = function UpperCasePipe_Factory(t) { return new (t || UpperCasePipe)(); };\nUpperCasePipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"uppercase\", type: UpperCasePipe, pure: true });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(UpperCasePipe, [{\n        type: Pipe,\n        args: [{ name: 'uppercase' }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/date_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// clang-format off\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Formats a date value according to locale rules.\n *\n * Only the `en-US` locale data comes with Angular. To localize dates\n * in another language, you must import the corresponding locale data.\n * See the [I18n guide](guide/i18n#i18n-pipes) for more information.\n *\n * @see `formatDate()`\n *\n *\n * \\@usageNotes\n *\n * The result of this pipe is not reevaluated when the input is mutated. To avoid the need to\n * reformat the date on every change-detection cycle, treat the date as an immutable object\n * and change the reference when the pipe needs to run again.\n *\n * ### Pre-defined format options\n *\n * Examples are given in `en-US` locale.\n *\n * - `'short'`: equivalent to `'M/d/yy, h:mm a'` (`6/15/15, 9:03 AM`).\n * - `'medium'`: equivalent to `'MMM d, y, h:mm:ss a'` (`Jun 15, 2015, 9:03:01 AM`).\n * - `'long'`: equivalent to `'MMMM d, y, h:mm:ss a z'` (`June 15, 2015 at 9:03:01 AM\n * GMT+1`).\n * - `'full'`: equivalent to `'EEEE, MMMM d, y, h:mm:ss a zzzz'` (`Monday, June 15, 2015 at\n * 9:03:01 AM GMT+01:00`).\n * - `'shortDate'`: equivalent to `'M/d/yy'` (`6/15/15`).\n * - `'mediumDate'`: equivalent to `'MMM d, y'` (`Jun 15, 2015`).\n * - `'longDate'`: equivalent to `'MMMM d, y'` (`June 15, 2015`).\n * - `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` (`Monday, June 15, 2015`).\n * - `'shortTime'`: equivalent to `'h:mm a'` (`9:03 AM`).\n * - `'mediumTime'`: equivalent to `'h:mm:ss a'` (`9:03:01 AM`).\n * - `'longTime'`: equivalent to `'h:mm:ss a z'` (`9:03:01 AM GMT+1`).\n * - `'fullTime'`: equivalent to `'h:mm:ss a zzzz'` (`9:03:01 AM GMT+01:00`).\n *\n * ### Custom format options\n *\n * You can construct a format string using symbols to specify the components\n * of a date-time value, as described in the following table.\n * Format details depend on the locale.\n * Fields marked with (*) are only available in the extra data set for the given locale.\n *\n *  | Field type         | Format      | Description                                                   | Example Value                                              |\n *  |--------------------|-------------|---------------------------------------------------------------|------------------------------------------------------------|\n *  | Era                | G, GG & GGG | Abbreviated                                                   | AD                                                         |\n *  |                    | GGGG        | Wide                                                          | Anno Domini                                                |\n *  |                    | GGGGG       | Narrow                                                        | A                                                          |\n *  | Year               | y           | Numeric: minimum digits                                       | 2, 20, 201, 2017, 20173                                    |\n *  |                    | yy          | Numeric: 2 digits + zero padded                               | 02, 20, 01, 17, 73                                         |\n *  |                    | yyy         | Numeric: 3 digits + zero padded                               | 002, 020, 201, 2017, 20173                                 |\n *  |                    | yyyy        | Numeric: 4 digits or more + zero padded                       | 0002, 0020, 0201, 2017, 20173                              |\n *  | Month              | M           | Numeric: 1 digit                                              | 9, 12                                                      |\n *  |                    | MM          | Numeric: 2 digits + zero padded                               | 09, 12                                                     |\n *  |                    | MMM         | Abbreviated                                                   | Sep                                                        |\n *  |                    | MMMM        | Wide                                                          | September                                                  |\n *  |                    | MMMMM       | Narrow                                                        | S                                                          |\n *  | Month standalone   | L           | Numeric: 1 digit                                              | 9, 12                                                      |\n *  |                    | LL          | Numeric: 2 digits + zero padded                               | 09, 12                                                     |\n *  |                    | LLL         | Abbreviated                                                   | Sep                                                        |\n *  |                    | LLLL        | Wide                                                          | September                                                  |\n *  |                    | LLLLL       | Narrow                                                        | S                                                          |\n *  | Week of year       | w           | Numeric: minimum digits                                       | 1... 53                                                    |\n *  |                    | ww          | Numeric: 2 digits + zero padded                               | 01... 53                                                   |\n *  | Week of month      | W           | Numeric: 1 digit                                              | 1... 5                                                     |\n *  | Day of month       | d           | Numeric: minimum digits                                       | 1                                                          |\n *  |                    | dd          | Numeric: 2 digits + zero padded                               | 01                                                          |\n *  | Week day           | E, EE & EEE | Abbreviated                                                   | Tue                                                        |\n *  |                    | EEEE        | Wide                                                          | Tuesday                                                    |\n *  |                    | EEEEE       | Narrow                                                        | T                                                          |\n *  |                    | EEEEEE      | Short                                                         | Tu                                                         |\n *  | Period             | a, aa & aaa | Abbreviated                                                   | am/pm or AM/PM                                             |\n *  |                    | aaaa        | Wide (fallback to `a` when missing)                           | ante meridiem/post meridiem                                |\n *  |                    | aaaaa       | Narrow                                                        | a/p                                                        |\n *  | Period*            | B, BB & BBB | Abbreviated                                                   | mid.                                                       |\n *  |                    | BBBB        | Wide                                                          | am, pm, midnight, noon, morning, afternoon, evening, night |\n *  |                    | BBBBB       | Narrow                                                        | md                                                         |\n *  | Period standalone* | b, bb & bbb | Abbreviated                                                   | mid.                                                       |\n *  |                    | bbbb        | Wide                                                          | am, pm, midnight, noon, morning, afternoon, evening, night |\n *  |                    | bbbbb       | Narrow                                                        | md                                                         |\n *  | Hour 1-12          | h           | Numeric: minimum digits                                       | 1, 12                                                      |\n *  |                    | hh          | Numeric: 2 digits + zero padded                               | 01, 12                                                     |\n *  | Hour 0-23          | H           | Numeric: minimum digits                                       | 0, 23                                                      |\n *  |                    | HH          | Numeric: 2 digits + zero padded                               | 00, 23                                                     |\n *  | Minute             | m           | Numeric: minimum digits                                       | 8, 59                                                      |\n *  |                    | mm          | Numeric: 2 digits + zero padded                               | 08, 59                                                     |\n *  | Second             | s           | Numeric: minimum digits                                       | 0... 59                                                    |\n *  |                    | ss          | Numeric: 2 digits + zero padded                               | 00... 59                                                   |\n *  | Fractional seconds | S           | Numeric: 1 digit                                              | 0... 9                                                     |\n *  |                    | SS          | Numeric: 2 digits + zero padded                               | 00... 99                                                   |\n *  |                    | SSS         | Numeric: 3 digits + zero padded (= milliseconds)              | 000... 999                                                 |\n *  | Zone               | z, zz & zzz | Short specific non location format (fallback to O)            | GMT-8                                                      |\n *  |                    | zzzz        | Long specific non location format (fallback to OOOO)          | GMT-08:00                                                  |\n *  |                    | Z, ZZ & ZZZ | ISO8601 basic format                                          | -0800                                                      |\n *  |                    | ZZZZ        | Long localized GMT format                                     | GMT-8:00                                                   |\n *  |                    | ZZZZZ       | ISO8601 extended format + Z indicator for offset 0 (= XXXXX)  | -08:00                                                     |\n *  |                    | O, OO & OOO | Short localized GMT format                                    | GMT-8                                                      |\n *  |                    | OOOO        | Long localized GMT format                                     | GMT-08:00                                                  |\n *\n * Note that timezone correction is not applied to an ISO string that has no time component, such as \"2016-09-19\"\n *\n * ### Format examples\n *\n * These examples transform a date into various formats,\n * assuming that `dateObj` is a JavaScript `Date` object for\n * year: 2015, month: 6, day: 15, hour: 21, minute: 43, second: 11,\n * given in the local time for the `en-US` locale.\n *\n * ```\n * {{ dateObj | date }}               // output is 'Jun 15, 2015'\n * {{ dateObj | date:'medium' }}      // output is 'Jun 15, 2015, 9:43:11 PM'\n * {{ dateObj | date:'shortTime' }}   // output is '9:43 PM'\n * {{ dateObj | date:'mm:ss' }}       // output is '43:11'\n * ```\n *\n * ### Usage example\n *\n * The following component uses a date pipe to display the current date in different formats.\n *\n * ```\n * \\@Component({\n *  selector: 'date-pipe',\n *  template: `<div>\n *    <p>Today is {{today | date}}</p>\n *    <p>Or if you prefer, {{today | date:'fullDate'}}</p>\n *    <p>The time is {{today | date:'h:mm a z'}}</p>\n *  </div>`\n * })\n * // Get the current date and time as a date-time value.\n * export class DatePipeComponent {\n *   today: number = Date.now();\n * }\n * ```\n *\n * \\@publicApi\n */\n// clang-format on\nclass DatePipe {\n    /**\n     * @param {?} locale\n     */\n    constructor(locale) {\n        this.locale = locale;\n    }\n    /**\n     * @param {?} value The date expression: a `Date` object,  a number\n     * (milliseconds since UTC epoch), or an ISO string (https://www.w3.org/TR/NOTE-datetime).\n     * @param {?=} format The date/time components to include, using predefined options or a\n     * custom format string.\n     * @param {?=} timezone A timezone offset (such as `'+0430'`), or a standard\n     * UTC/GMT or continental US timezone abbreviation.\n     * When not supplied, uses the end-user's local system timezone.\n     * @param {?=} locale A locale code for the locale format rules to use.\n     * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n     * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n     * @return {?} A date string in the desired format.\n     */\n    transform(value, format = 'mediumDate', timezone, locale) {\n        if (value == null || value === '' || value !== value)\n            return null;\n        try {\n            return formatDate(value, format, locale || this.locale, timezone);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(DatePipe, error.message);\n        }\n    }\n}\nDatePipe.ɵfac = function DatePipe_Factory(t) { return new (t || DatePipe)(ɵngcc0.ɵɵdirectiveInject(LOCALE_ID)); };\nDatePipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"date\", type: DatePipe, pure: true });\n/** @nocollapse */\nDatePipe.ctorParameters = () => [\n    { type: String, decorators: [{ type: Inject, args: [LOCALE_ID,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DatePipe, [{\n        type: Pipe,\n        args: [{ name: 'date', pure: true }]\n    }], function () { return [{ type: String, decorators: [{\n                type: Inject,\n                args: [LOCALE_ID]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DatePipe.prototype.locale;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/i18n_plural_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst _INTERPOLATION_REGEXP = /#/g;\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Maps a value to a string that pluralizes the value according to locale rules.\n *\n * \\@usageNotes\n *\n * ### Example\n *\n * {\\@example common/pipes/ts/i18n_pipe.ts region='I18nPluralPipeComponent'}\n *\n * \\@publicApi\n */\nclass I18nPluralPipe {\n    /**\n     * @param {?} _localization\n     */\n    constructor(_localization) {\n        this._localization = _localization;\n    }\n    /**\n     * @param {?} value the number to be formatted\n     * @param {?} pluralMap an object that mimics the ICU format, see\n     * http://userguide.icu-project.org/formatparse/messages.\n     * @param {?=} locale a `string` defining the locale to use (uses the current {\\@link LOCALE_ID} by\n     * default).\n     * @return {?}\n     */\n    transform(value, pluralMap, locale) {\n        if (value == null)\n            return '';\n        if (typeof pluralMap !== 'object' || pluralMap === null) {\n            throw invalidPipeArgumentError(I18nPluralPipe, pluralMap);\n        }\n        /** @type {?} */\n        const key = getPluralCategory(value, Object.keys(pluralMap), this._localization, locale);\n        return pluralMap[key].replace(_INTERPOLATION_REGEXP, value.toString());\n    }\n}\nI18nPluralPipe.ɵfac = function I18nPluralPipe_Factory(t) { return new (t || I18nPluralPipe)(ɵngcc0.ɵɵdirectiveInject(NgLocalization)); };\nI18nPluralPipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"i18nPlural\", type: I18nPluralPipe, pure: true });\n/** @nocollapse */\nI18nPluralPipe.ctorParameters = () => [\n    { type: NgLocalization }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(I18nPluralPipe, [{\n        type: Pipe,\n        args: [{ name: 'i18nPlural', pure: true }]\n    }], function () { return [{ type: NgLocalization }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    I18nPluralPipe.prototype._localization;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/i18n_select_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Generic selector that displays the string that matches the current value.\n *\n * If none of the keys of the `mapping` match the `value`, then the content\n * of the `other` key is returned when present, otherwise an empty string is returned.\n *\n * \\@usageNotes\n *\n * ### Example\n *\n * {\\@example common/pipes/ts/i18n_pipe.ts region='I18nSelectPipeComponent'}\n *\n * \\@publicApi\n */\nclass I18nSelectPipe {\n    /**\n     * @param {?} value a string to be internationalized.\n     * @param {?} mapping an object that indicates the text that should be displayed\n     * for different values of the provided `value`.\n     * @return {?}\n     */\n    transform(value, mapping) {\n        if (value == null)\n            return '';\n        if (typeof mapping !== 'object' || typeof value !== 'string') {\n            throw invalidPipeArgumentError(I18nSelectPipe, mapping);\n        }\n        if (mapping.hasOwnProperty(value)) {\n            return mapping[value];\n        }\n        if (mapping.hasOwnProperty('other')) {\n            return mapping['other'];\n        }\n        return '';\n    }\n}\nI18nSelectPipe.ɵfac = function I18nSelectPipe_Factory(t) { return new (t || I18nSelectPipe)(); };\nI18nSelectPipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"i18nSelect\", type: I18nSelectPipe, pure: true });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(I18nSelectPipe, [{\n        type: Pipe,\n        args: [{ name: 'i18nSelect', pure: true }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/json_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Converts a value into its JSON-format representation.  Useful for debugging.\n *\n * \\@usageNotes\n *\n * The following component uses a JSON pipe to convert an object\n * to JSON format, and displays the string in both formats for comparison.\n *\n * {\\@example common/pipes/ts/json_pipe.ts region='JsonPipe'}\n *\n * \\@publicApi\n */\nclass JsonPipe {\n    /**\n     * @param {?} value A value of any type to convert into a JSON-format string.\n     * @return {?}\n     */\n    transform(value) {\n        return JSON.stringify(value, null, 2);\n    }\n}\nJsonPipe.ɵfac = function JsonPipe_Factory(t) { return new (t || JsonPipe)(); };\nJsonPipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"json\", type: JsonPipe, pure: false });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(JsonPipe, [{\n        type: Pipe,\n        args: [{ name: 'json', pure: false }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/keyvalue_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @template K, V\n * @param {?} key\n * @param {?} value\n * @return {?}\n */\nfunction makeKeyValuePair(key, value) {\n    return { key: key, value: value };\n}\n/**\n * A key value pair.\n * Usually used to represent the key value pairs from a Map or Object.\n *\n * \\@publicApi\n * @record\n * @template K, V\n */\nfunction KeyValue() { }\nif (false) {\n    /** @type {?} */\n    KeyValue.prototype.key;\n    /** @type {?} */\n    KeyValue.prototype.value;\n}\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Transforms Object or Map into an array of key value pairs.\n *\n * The output array will be ordered by keys.\n * By default the comparator will be by Unicode point value.\n * You can optionally pass a compareFn if your keys are complex types.\n *\n * \\@usageNotes\n * ### Examples\n *\n * This examples show how an Object or a Map can be iterated by ngFor with the use of this keyvalue\n * pipe.\n *\n * {\\@example common/pipes/ts/keyvalue_pipe.ts region='KeyValuePipe'}\n *\n * \\@publicApi\n */\nclass KeyValuePipe {\n    /**\n     * @param {?} differs\n     */\n    constructor(differs) {\n        this.differs = differs;\n        this.keyValues = [];\n    }\n    /**\n     * @template K, V\n     * @param {?} input\n     * @param {?=} compareFn\n     * @return {?}\n     */\n    transform(input, compareFn = defaultComparator) {\n        if (!input || (!(input instanceof Map) && typeof input !== 'object')) {\n            return null;\n        }\n        if (!this.differ) {\n            // make a differ for whatever type we've been passed in\n            this.differ = this.differs.find(input).create();\n        }\n        /** @type {?} */\n        const differChanges = this.differ.diff((/** @type {?} */ (input)));\n        if (differChanges) {\n            this.keyValues = [];\n            differChanges.forEachItem((/**\n             * @param {?} r\n             * @return {?}\n             */\n            (r) => {\n                this.keyValues.push(makeKeyValuePair(r.key, (/** @type {?} */ (r.currentValue))));\n            }));\n            this.keyValues.sort(compareFn);\n        }\n        return this.keyValues;\n    }\n}\nKeyValuePipe.ɵfac = function KeyValuePipe_Factory(t) { return new (t || KeyValuePipe)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.KeyValueDiffers)); };\nKeyValuePipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"keyvalue\", type: KeyValuePipe, pure: false });\n/** @nocollapse */\nKeyValuePipe.ctorParameters = () => [\n    { type: KeyValueDiffers }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(KeyValuePipe, [{\n        type: Pipe,\n        args: [{ name: 'keyvalue', pure: false }]\n    }], function () { return [{ type: ɵngcc0.KeyValueDiffers }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    KeyValuePipe.prototype.differ;\n    /**\n     * @type {?}\n     * @private\n     */\n    KeyValuePipe.prototype.keyValues;\n    /**\n     * @type {?}\n     * @private\n     */\n    KeyValuePipe.prototype.differs;\n}\n/**\n * @template K, V\n * @param {?} keyValueA\n * @param {?} keyValueB\n * @return {?}\n */\nfunction defaultComparator(keyValueA, keyValueB) {\n    /** @type {?} */\n    const a = keyValueA.key;\n    /** @type {?} */\n    const b = keyValueB.key;\n    // if same exit with 0;\n    if (a === b)\n        return 0;\n    // make sure that undefined are at the end of the sort.\n    if (a === undefined)\n        return 1;\n    if (b === undefined)\n        return -1;\n    // make sure that nulls are at the end of the sort.\n    if (a === null)\n        return 1;\n    if (b === null)\n        return -1;\n    if (typeof a == 'string' && typeof b == 'string') {\n        return a < b ? -1 : 1;\n    }\n    if (typeof a == 'number' && typeof b == 'number') {\n        return a - b;\n    }\n    if (typeof a == 'boolean' && typeof b == 'boolean') {\n        return a < b ? -1 : 1;\n    }\n    // `a` and `b` are of different types. Compare their string values.\n    /** @type {?} */\n    const aString = String(a);\n    /** @type {?} */\n    const bString = String(b);\n    return aString == bString ? 0 : aString < bString ? -1 : 1;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/number_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Transforms a number into a string,\n * formatted according to locale rules that determine group sizing and\n * separator, decimal-point character, and other locale-specific\n * configurations.\n *\n * If no parameters are specified, the function rounds off to the nearest value using this\n * [rounding method](https://en.wikibooks.org/wiki/Arithmetic/Rounding).\n * The behavior differs from that of the JavaScript ```Math.round()``` function.\n * In the following case for example, the pipe rounds down where\n * ```Math.round()``` rounds up:\n *\n * ```html\n * -2.5 | number:'1.0-0'\n * > -3\n * Math.round(-2.5)\n * > -2\n * ```\n *\n * @see `formatNumber()`\n *\n * \\@usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * ### Example\n *\n * <code-example path=\"common/pipes/ts/number_pipe.ts\" region='NumberPipe'></code-example>\n *\n * \\@publicApi\n */\nclass DecimalPipe {\n    /**\n     * @param {?} _locale\n     */\n    constructor(_locale) {\n        this._locale = _locale;\n    }\n    /**\n     * @param {?} value The number to be formatted.\n     * @param {?=} digitsInfo Decimal representation options, specified by a string\n     * in the following format:<br>\n     * <code>{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}</code>.\n     *   - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n     * Default is `1`.\n     *   - `minFractionDigits`: The minimum number of digits after the decimal point.\n     * Default is `0`.\n     *   - `maxFractionDigits`: The maximum number of digits after the decimal point.\n     * Default is `3`.\n     * @param {?=} locale A locale code for the locale format rules to use.\n     * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n     * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n     * @return {?}\n     */\n    transform(value, digitsInfo, locale) {\n        if (isEmpty(value))\n            return null;\n        locale = locale || this._locale;\n        try {\n            /** @type {?} */\n            const num = strToNumber(value);\n            return formatNumber(num, locale, digitsInfo);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(DecimalPipe, error.message);\n        }\n    }\n}\nDecimalPipe.ɵfac = function DecimalPipe_Factory(t) { return new (t || DecimalPipe)(ɵngcc0.ɵɵdirectiveInject(LOCALE_ID)); };\nDecimalPipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"number\", type: DecimalPipe, pure: true });\n/** @nocollapse */\nDecimalPipe.ctorParameters = () => [\n    { type: String, decorators: [{ type: Inject, args: [LOCALE_ID,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DecimalPipe, [{\n        type: Pipe,\n        args: [{ name: 'number' }]\n    }], function () { return [{ type: String, decorators: [{\n                type: Inject,\n                args: [LOCALE_ID]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DecimalPipe.prototype._locale;\n}\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Transforms a number to a percentage\n * string, formatted according to locale rules that determine group sizing and\n * separator, decimal-point character, and other locale-specific\n * configurations.\n *\n * @see `formatPercent()`\n *\n * \\@usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * <code-example path=\"common/pipes/ts/percent_pipe.ts\" region='PercentPipe'></code-example>\n *\n * \\@publicApi\n */\nclass PercentPipe {\n    /**\n     * @param {?} _locale\n     */\n    constructor(_locale) {\n        this._locale = _locale;\n    }\n    /**\n     *\n     * @param {?} value The number to be formatted as a percentage.\n     * @param {?=} digitsInfo Decimal representation options, specified by a string\n     * in the following format:<br>\n     * <code>{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}</code>.\n     *   - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n     * Default is `1`.\n     *   - `minFractionDigits`: The minimum number of digits after the decimal point.\n     * Default is `0`.\n     *   - `maxFractionDigits`: The maximum number of digits after the decimal point.\n     * Default is `0`.\n     * @param {?=} locale A locale code for the locale format rules to use.\n     * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n     * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n     * @return {?}\n     */\n    transform(value, digitsInfo, locale) {\n        if (isEmpty(value))\n            return null;\n        locale = locale || this._locale;\n        try {\n            /** @type {?} */\n            const num = strToNumber(value);\n            return formatPercent(num, locale, digitsInfo);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(PercentPipe, error.message);\n        }\n    }\n}\nPercentPipe.ɵfac = function PercentPipe_Factory(t) { return new (t || PercentPipe)(ɵngcc0.ɵɵdirectiveInject(LOCALE_ID)); };\nPercentPipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"percent\", type: PercentPipe, pure: true });\n/** @nocollapse */\nPercentPipe.ctorParameters = () => [\n    { type: String, decorators: [{ type: Inject, args: [LOCALE_ID,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PercentPipe, [{\n        type: Pipe,\n        args: [{ name: 'percent' }]\n    }], function () { return [{ type: String, decorators: [{\n                type: Inject,\n                args: [LOCALE_ID]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    PercentPipe.prototype._locale;\n}\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Transforms a number to a currency string, formatted according to locale rules\n * that determine group sizing and separator, decimal-point character,\n * and other locale-specific configurations.\n *\n * {\\@a currency-code-deprecation}\n * <div class=\"alert is-helpful\">\n *\n * **Deprecation notice:**\n *\n * The default currency code is currently always `USD` but this is deprecated from v9.\n *\n * **In v11 the default currency code will be taken from the current locale identified by\n * the `LOCAL_ID` token. See the [i18n guide](guide/i18n#setting-up-the-locale-of-your-app) for\n * more information.**\n *\n * If you need the previous behavior then set it by creating a `DEFAULT_CURRENCY_CODE` provider in\n * your application `NgModule`:\n *\n * ```ts\n * {provide: DEFAULT_CURRENCY_CODE, useValue: 'USD'}\n * ```\n *\n * </div>\n *\n * @see `getCurrencySymbol()`\n * @see `formatCurrency()`\n *\n * \\@usageNotes\n * The following code shows how the pipe transforms numbers\n * into text strings, according to various format specifications,\n * where the caller's default locale is `en-US`.\n *\n * <code-example path=\"common/pipes/ts/currency_pipe.ts\" region='CurrencyPipe'></code-example>\n *\n * \\@publicApi\n */\nclass CurrencyPipe {\n    /**\n     * @param {?} _locale\n     * @param {?=} _defaultCurrencyCode\n     */\n    constructor(_locale, _defaultCurrencyCode = 'USD') {\n        this._locale = _locale;\n        this._defaultCurrencyCode = _defaultCurrencyCode;\n    }\n    /**\n     *\n     * @param {?} value The number to be formatted as currency.\n     * @param {?=} currencyCode The [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) currency code,\n     * such as `USD` for the US dollar and `EUR` for the euro. The default currency code can be\n     * configured using the `DEFAULT_CURRENCY_CODE` injection token.\n     * @param {?=} display The format for the currency indicator. One of the following:\n     *   - `code`: Show the code (such as `USD`).\n     *   - `symbol`(default): Show the symbol (such as `$`).\n     *   - `symbol-narrow`: Use the narrow symbol for locales that have two symbols for their\n     * currency.\n     * For example, the Canadian dollar CAD has the symbol `CA$` and the symbol-narrow `$`. If the\n     * locale has no narrow symbol, uses the standard symbol for the locale.\n     *   - String: Use the given string value instead of a code or a symbol.\n     * For example, an empty string will suppress the currency & symbol.\n     *   - Boolean (marked deprecated in v5): `true` for symbol and false for `code`.\n     *\n     * @param {?=} digitsInfo Decimal representation options, specified by a string\n     * in the following format:<br>\n     * <code>{minIntegerDigits}.{minFractionDigits}-{maxFractionDigits}</code>.\n     *   - `minIntegerDigits`: The minimum number of integer digits before the decimal point.\n     * Default is `1`.\n     *   - `minFractionDigits`: The minimum number of digits after the decimal point.\n     * Default is `2`.\n     *   - `maxFractionDigits`: The maximum number of digits after the decimal point.\n     * Default is `2`.\n     * If not provided, the number will be formatted with the proper amount of digits,\n     * depending on what the [ISO 4217](https://en.wikipedia.org/wiki/ISO_4217) specifies.\n     * For example, the Canadian dollar has 2 digits, whereas the Chilean peso has none.\n     * @param {?=} locale A locale code for the locale format rules to use.\n     * When not supplied, uses the value of `LOCALE_ID`, which is `en-US` by default.\n     * See [Setting your app locale](guide/i18n#setting-up-the-locale-of-your-app).\n     * @return {?}\n     */\n    transform(value, currencyCode, display = 'symbol', digitsInfo, locale) {\n        if (isEmpty(value))\n            return null;\n        locale = locale || this._locale;\n        if (typeof display === 'boolean') {\n            if ((/** @type {?} */ (console)) && (/** @type {?} */ (console.warn))) {\n                console.warn(`Warning: the currency pipe has been changed in Angular v5. The symbolDisplay option (third parameter) is now a string instead of a boolean. The accepted values are \"code\", \"symbol\" or \"symbol-narrow\".`);\n            }\n            display = display ? 'symbol' : 'code';\n        }\n        /** @type {?} */\n        let currency = currencyCode || this._defaultCurrencyCode;\n        if (display !== 'code') {\n            if (display === 'symbol' || display === 'symbol-narrow') {\n                currency = getCurrencySymbol(currency, display === 'symbol' ? 'wide' : 'narrow', locale);\n            }\n            else {\n                currency = display;\n            }\n        }\n        try {\n            /** @type {?} */\n            const num = strToNumber(value);\n            return formatCurrency(num, locale, currency, currencyCode, digitsInfo);\n        }\n        catch (error) {\n            throw invalidPipeArgumentError(CurrencyPipe, error.message);\n        }\n    }\n}\nCurrencyPipe.ɵfac = function CurrencyPipe_Factory(t) { return new (t || CurrencyPipe)(ɵngcc0.ɵɵdirectiveInject(LOCALE_ID), ɵngcc0.ɵɵdirectiveInject(DEFAULT_CURRENCY_CODE)); };\nCurrencyPipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"currency\", type: CurrencyPipe, pure: true });\n/** @nocollapse */\nCurrencyPipe.ctorParameters = () => [\n    { type: String, decorators: [{ type: Inject, args: [LOCALE_ID,] }] },\n    { type: String, decorators: [{ type: Inject, args: [DEFAULT_CURRENCY_CODE,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CurrencyPipe, [{\n        type: Pipe,\n        args: [{ name: 'currency' }]\n    }], function () { return [{ type: String, decorators: [{\n                type: Inject,\n                args: [LOCALE_ID]\n            }] }, { type: String, decorators: [{\n                type: Inject,\n                args: [DEFAULT_CURRENCY_CODE]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CurrencyPipe.prototype._locale;\n    /**\n     * @type {?}\n     * @private\n     */\n    CurrencyPipe.prototype._defaultCurrencyCode;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isEmpty(value) {\n    return value == null || value === '' || value !== value;\n}\n/**\n * Transforms a string into a number (if needed).\n * @param {?} value\n * @return {?}\n */\nfunction strToNumber(value) {\n    // Convert strings to numbers\n    if (typeof value === 'string' && !isNaN(Number(value) - parseFloat(value))) {\n        return Number(value);\n    }\n    if (typeof value !== 'number') {\n        throw new Error(`${value} is not a number`);\n    }\n    return value;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/slice_pipe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@ngModule CommonModule\n * \\@description\n *\n * Creates a new `Array` or `String` containing a subset (slice) of the elements.\n *\n * \\@usageNotes\n *\n * All behavior is based on the expected behavior of the JavaScript API `Array.prototype.slice()`\n * and `String.prototype.slice()`.\n *\n * When operating on an `Array`, the returned `Array` is always a copy even when all\n * the elements are being returned.\n *\n * When operating on a blank value, the pipe returns the blank value.\n *\n * ### List Example\n *\n * This `ngFor` example:\n *\n * {\\@example common/pipes/ts/slice_pipe.ts region='SlicePipe_list'}\n *\n * produces the following:\n *\n * ```html\n * <li>b</li>\n * <li>c</li>\n * ```\n *\n * ### String Examples\n *\n * {\\@example common/pipes/ts/slice_pipe.ts region='SlicePipe_string'}\n *\n * \\@publicApi\n */\nclass SlicePipe {\n    /**\n     * @param {?} value\n     * @param {?} start\n     * @param {?=} end\n     * @return {?}\n     */\n    transform(value, start, end) {\n        if (value == null)\n            return value;\n        if (!this.supports(value)) {\n            throw invalidPipeArgumentError(SlicePipe, value);\n        }\n        return value.slice(start, end);\n    }\n    /**\n     * @private\n     * @param {?} obj\n     * @return {?}\n     */\n    supports(obj) {\n        return typeof obj === 'string' || Array.isArray(obj);\n    }\n}\nSlicePipe.ɵfac = function SlicePipe_Factory(t) { return new (t || SlicePipe)(); };\nSlicePipe.ɵpipe = ɵngcc0.ɵɵdefinePipe({ name: \"slice\", type: SlicePipe, pure: false });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(SlicePipe, [{\n        type: Pipe,\n        args: [{ name: 'slice', pure: false }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/pipes/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A collection of Angular pipes that are likely to be used in each and every application.\n * @type {?}\n */\nconst COMMON_PIPES = [\n    AsyncPipe,\n    UpperCasePipe,\n    LowerCasePipe,\n    JsonPipe,\n    SlicePipe,\n    DecimalPipe,\n    PercentPipe,\n    TitleCasePipe,\n    CurrencyPipe,\n    DatePipe,\n    I18nPluralPipe,\n    I18nSelectPipe,\n    KeyValuePipe,\n];\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/common_module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Note: This does not contain the location providers,\n// as they need some platform specific implementations to work.\n/**\n * Exports all the basic Angular directives and pipes,\n * such as `NgIf`, `NgForOf`, `DecimalPipe`, and so on.\n * Re-exported by `BrowserModule`, which is included automatically in the root\n * `AppModule` when you create a new app with the CLI `new` command.\n *\n * * The `providers` options configure the NgModule's injector to provide\n * localization dependencies to members.\n * * The `exports` options make the declared directives and pipes available for import\n * by other NgModules.\n *\n * \\@publicApi\n */\nclass CommonModule {\n}\nCommonModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: CommonModule });\nCommonModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function CommonModule_Factory(t) { return new (t || CommonModule)(); }, providers: [\n        { provide: NgLocalization, useClass: NgLocaleLocalization },\n    ] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(CommonModule, { declarations: [NgClass, NgComponentOutlet, NgForOf, NgIf, NgTemplateOutlet, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgPlural, NgPluralCase, AsyncPipe, UpperCasePipe, LowerCasePipe, JsonPipe, SlicePipe, DecimalPipe, PercentPipe, TitleCasePipe, CurrencyPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, KeyValuePipe], exports: [NgClass, NgComponentOutlet, NgForOf, NgIf, NgTemplateOutlet, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgPlural, NgPluralCase, AsyncPipe, UpperCasePipe, LowerCasePipe, JsonPipe, SlicePipe, DecimalPipe, PercentPipe, TitleCasePipe, CurrencyPipe, DatePipe, I18nPluralPipe, I18nSelectPipe, KeyValuePipe] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CommonModule, [{\n        type: NgModule,\n        args: [{\n                declarations: [COMMON_DIRECTIVES, COMMON_PIPES],\n                exports: [COMMON_DIRECTIVES, COMMON_PIPES],\n                providers: [\n                    { provide: NgLocalization, useClass: NgLocaleLocalization },\n                ]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/platform_id.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst PLATFORM_BROWSER_ID = 'browser';\n/** @type {?} */\nconst PLATFORM_SERVER_ID = 'server';\n/** @type {?} */\nconst PLATFORM_WORKER_APP_ID = 'browserWorkerApp';\n/** @type {?} */\nconst PLATFORM_WORKER_UI_ID = 'browserWorkerUi';\n/**\n * Returns whether a platform id represents a browser platform.\n * \\@publicApi\n * @param {?} platformId\n * @return {?}\n */\nfunction isPlatformBrowser(platformId) {\n    return platformId === PLATFORM_BROWSER_ID;\n}\n/**\n * Returns whether a platform id represents a server platform.\n * \\@publicApi\n * @param {?} platformId\n * @return {?}\n */\nfunction isPlatformServer(platformId) {\n    return platformId === PLATFORM_SERVER_ID;\n}\n/**\n * Returns whether a platform id represents a web worker app platform.\n * \\@publicApi\n * @param {?} platformId\n * @return {?}\n */\nfunction isPlatformWorkerApp(platformId) {\n    return platformId === PLATFORM_WORKER_APP_ID;\n}\n/**\n * Returns whether a platform id represents a web worker UI platform.\n * \\@publicApi\n * @param {?} platformId\n * @return {?}\n */\nfunction isPlatformWorkerUi(platformId) {\n    return platformId === PLATFORM_WORKER_UI_ID;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/version.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n * @type {?}\n */\nconst VERSION = new Version('9.1.9');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/viewport_scroller.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Defines a scroll position manager. Implemented by `BrowserViewportScroller`.\n *\n * \\@publicApi\n * @abstract\n */\nclass ViewportScroller {\n}\n// De-sugared tree-shakable injection\n// See #23917\n/** @nocollapse */\nViewportScroller.ɵprov = ɵɵdefineInjectable({\n    token: ViewportScroller,\n    providedIn: 'root',\n    factory: (/**\n     * @return {?}\n     */\n    () => new BrowserViewportScroller(ɵɵinject(DOCUMENT), window, ɵɵinject(ErrorHandler)))\n});\nif (false) {\n    /**\n     * @nocollapse\n     * @type {?}\n     */\n    ViewportScroller.ɵprov;\n    /**\n     * Configures the top offset used when scrolling to an anchor.\n     * @abstract\n     * @param {?} offset A position in screen coordinates (a tuple with x and y values)\n     * or a function that returns the top offset position.\n     *\n     * @return {?}\n     */\n    ViewportScroller.prototype.setOffset = function (offset) { };\n    /**\n     * Retrieves the current scroll position.\n     * @abstract\n     * @return {?} A position in screen coordinates (a tuple with x and y values).\n     */\n    ViewportScroller.prototype.getScrollPosition = function () { };\n    /**\n     * Scrolls to a specified position.\n     * @abstract\n     * @param {?} position A position in screen coordinates (a tuple with x and y values).\n     * @return {?}\n     */\n    ViewportScroller.prototype.scrollToPosition = function (position) { };\n    /**\n     * Scrolls to an anchor element.\n     * @abstract\n     * @param {?} anchor The ID of the anchor element.\n     * @return {?}\n     */\n    ViewportScroller.prototype.scrollToAnchor = function (anchor) { };\n    /**\n     * Disables automatic scroll restoration provided by the browser.\n     * See also [window.history.scrollRestoration\n     * info](https://developers.google.com/web/updates/2015/09/history-api-scroll-restoration).\n     * @abstract\n     * @param {?} scrollRestoration\n     * @return {?}\n     */\n    ViewportScroller.prototype.setHistoryScrollRestoration = function (scrollRestoration) { };\n}\n/**\n * Manages the scroll position for a browser window.\n */\nclass BrowserViewportScroller {\n    /**\n     * @param {?} document\n     * @param {?} window\n     * @param {?} errorHandler\n     */\n    constructor(document, window, errorHandler) {\n        this.document = document;\n        this.window = window;\n        this.errorHandler = errorHandler;\n        this.offset = (/**\n         * @return {?}\n         */\n        () => [0, 0]);\n    }\n    /**\n     * Configures the top offset used when scrolling to an anchor.\n     * @param {?} offset A position in screen coordinates (a tuple with x and y values)\n     * or a function that returns the top offset position.\n     *\n     * @return {?}\n     */\n    setOffset(offset) {\n        if (Array.isArray(offset)) {\n            this.offset = (/**\n             * @return {?}\n             */\n            () => offset);\n        }\n        else {\n            this.offset = offset;\n        }\n    }\n    /**\n     * Retrieves the current scroll position.\n     * @return {?} The position in screen coordinates.\n     */\n    getScrollPosition() {\n        if (this.supportScrollRestoration()) {\n            return [this.window.scrollX, this.window.scrollY];\n        }\n        else {\n            return [0, 0];\n        }\n    }\n    /**\n     * Sets the scroll position.\n     * @param {?} position The new position in screen coordinates.\n     * @return {?}\n     */\n    scrollToPosition(position) {\n        if (this.supportScrollRestoration()) {\n            this.window.scrollTo(position[0], position[1]);\n        }\n    }\n    /**\n     * Scrolls to an anchor element.\n     * @param {?} anchor The ID of the anchor element.\n     * @return {?}\n     */\n    scrollToAnchor(anchor) {\n        if (this.supportScrollRestoration()) {\n            // Escape anything passed to `querySelector` as it can throw errors and stop the application\n            // from working if invalid values are passed.\n            if (this.window.CSS && this.window.CSS.escape) {\n                anchor = this.window.CSS.escape(anchor);\n            }\n            else {\n                anchor = anchor.replace(/(\\\"|\\'\\ |:|\\.|\\[|\\]|,|=)/g, '\\\\$1');\n            }\n            try {\n                /** @type {?} */\n                const elSelectedById = this.document.querySelector(`#${anchor}`);\n                if (elSelectedById) {\n                    this.scrollToElement(elSelectedById);\n                    return;\n                }\n                /** @type {?} */\n                const elSelectedByName = this.document.querySelector(`[name='${anchor}']`);\n                if (elSelectedByName) {\n                    this.scrollToElement(elSelectedByName);\n                    return;\n                }\n            }\n            catch (e) {\n                this.errorHandler.handleError(e);\n            }\n        }\n    }\n    /**\n     * Disables automatic scroll restoration provided by the browser.\n     * @param {?} scrollRestoration\n     * @return {?}\n     */\n    setHistoryScrollRestoration(scrollRestoration) {\n        if (this.supportScrollRestoration()) {\n            /** @type {?} */\n            const history = this.window.history;\n            if (history && history.scrollRestoration) {\n                history.scrollRestoration = scrollRestoration;\n            }\n        }\n    }\n    /**\n     * @private\n     * @param {?} el\n     * @return {?}\n     */\n    scrollToElement(el) {\n        /** @type {?} */\n        const rect = el.getBoundingClientRect();\n        /** @type {?} */\n        const left = rect.left + this.window.pageXOffset;\n        /** @type {?} */\n        const top = rect.top + this.window.pageYOffset;\n        /** @type {?} */\n        const offset = this.offset();\n        this.window.scrollTo(left - offset[0], top - offset[1]);\n    }\n    /**\n     * We only support scroll restoration when we can get a hold of window.\n     * This means that we do not support this behavior when running in a web worker.\n     *\n     * Lifting this restriction right now would require more changes in the dom adapter.\n     * Since webworkers aren't widely used, we will lift it once RouterScroller is\n     * battle-tested.\n     * @private\n     * @return {?}\n     */\n    supportScrollRestoration() {\n        try {\n            return !!this.window && !!this.window.scrollTo;\n        }\n        catch (_a) {\n            return false;\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserViewportScroller.prototype.offset;\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserViewportScroller.prototype.document;\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserViewportScroller.prototype.window;\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserViewportScroller.prototype.errorHandler;\n}\n/**\n * Provides an empty implementation of the viewport scroller. This will\n * live in \\@angular/common as it will be used by both platform-server and platform-webworker.\n */\nclass NullViewportScroller {\n    /**\n     * Empty implementation\n     * @param {?} offset\n     * @return {?}\n     */\n    setOffset(offset) { }\n    /**\n     * Empty implementation\n     * @return {?}\n     */\n    getScrollPosition() {\n        return [0, 0];\n    }\n    /**\n     * Empty implementation\n     * @param {?} position\n     * @return {?}\n     */\n    scrollToPosition(position) { }\n    /**\n     * Empty implementation\n     * @param {?} anchor\n     * @return {?}\n     */\n    scrollToAnchor(anchor) { }\n    /**\n     * Empty implementation\n     * @param {?} scrollRestoration\n     * @return {?}\n     */\n    setHistoryScrollRestoration(scrollRestoration) { }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/src/common.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { APP_BASE_HREF, AsyncPipe, CommonModule, CurrencyPipe, DOCUMENT, DatePipe, DecimalPipe, FormStyle, FormatWidth, HashLocationStrategy, I18nPluralPipe, I18nSelectPipe, JsonPipe, KeyValuePipe, LOCATION_INITIALIZED, Location, LocationStrategy, LowerCasePipe, NgClass, NgComponentOutlet, NgForOf, NgForOfContext, NgIf, NgIfContext, NgLocaleLocalization, NgLocalization, NgPlural, NgPluralCase, NgStyle, NgSwitch, NgSwitchCase, NgSwitchDefault, NgTemplateOutlet, NumberFormatStyle, NumberSymbol, PathLocationStrategy, PercentPipe, PlatformLocation, Plural, SlicePipe, TitleCasePipe, TranslationWidth, UpperCasePipe, VERSION, ViewportScroller, WeekDay, formatCurrency, formatDate, formatNumber, formatPercent, getCurrencySymbol, getLocaleCurrencyCode, getLocaleCurrencyName, getLocaleCurrencySymbol, getLocaleDateFormat, getLocaleDateTimeFormat, getLocaleDayNames, getLocaleDayPeriods, getLocaleDirection, getLocaleEraNames, getLocaleExtraDayPeriodRules, getLocaleExtraDayPeriods, getLocaleFirstDayOfWeek, getLocaleId, getLocaleMonthNames, getLocaleNumberFormat, getLocaleNumberSymbol, getLocalePluralCase, getLocaleTimeFormat, getLocaleWeekEndRange, getNumberOfCurrencyDigits, isPlatformBrowser, isPlatformServer, isPlatformWorkerApp, isPlatformWorkerUi, registerLocaleData, BrowserPlatformLocation as ɵBrowserPlatformLocation, DomAdapter as ɵDomAdapter, NullViewportScroller as ɵNullViewportScroller, PLATFORM_BROWSER_ID as ɵPLATFORM_BROWSER_ID, PLATFORM_SERVER_ID as ɵPLATFORM_SERVER_ID, PLATFORM_WORKER_APP_ID as ɵPLATFORM_WORKER_APP_ID, PLATFORM_WORKER_UI_ID as ɵPLATFORM_WORKER_UI_ID, useBrowserPlatformLocation as ɵangular_packages_common_common_a, createBrowserPlatformLocation as ɵangular_packages_common_common_b, createLocation as ɵangular_packages_common_common_c, provideLocationStrategy as ɵangular_packages_common_common_d, COMMON_DIRECTIVES as ɵangular_packages_common_common_e, COMMON_PIPES as ɵangular_packages_common_common_f, getDOM as ɵgetDOM, parseCookieValue as ɵparseCookieValue, setRootDomAdapter as ɵsetRootDomAdapter };\n\n//# sourceMappingURL=common.js.map","import { Subject } from './Subject';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nexport class BehaviorSubject extends Subject {\n    constructor(_value) {\n        super();\n        this._value = _value;\n    }\n    get value() {\n        return this.getValue();\n    }\n    _subscribe(subscriber) {\n        const subscription = super._subscribe(subscriber);\n        if (subscription && !subscription.closed) {\n            subscriber.next(this._value);\n        }\n        return subscription;\n    }\n    getValue() {\n        if (this.hasError) {\n            throw this.thrownError;\n        }\n        else if (this.closed) {\n            throw new ObjectUnsubscribedError();\n        }\n        else {\n            return this._value;\n        }\n    }\n    next(value) {\n        super.next(this._value = value);\n    }\n}\n//# sourceMappingURL=BehaviorSubject.js.map","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { map } from '../operators/map';\nimport { isObject } from '../util/isObject';\nimport { from } from './from';\nexport function forkJoin(...sources) {\n    if (sources.length === 1) {\n        const first = sources[0];\n        if (isArray(first)) {\n            return forkJoinInternal(first, null);\n        }\n        if (isObject(first) && Object.getPrototypeOf(first) === Object.prototype) {\n            const keys = Object.keys(first);\n            return forkJoinInternal(keys.map(key => first[key]), keys);\n        }\n    }\n    if (typeof sources[sources.length - 1] === 'function') {\n        const resultSelector = sources.pop();\n        sources = (sources.length === 1 && isArray(sources[0])) ? sources[0] : sources;\n        return forkJoinInternal(sources, null).pipe(map((args) => resultSelector(...args)));\n    }\n    return forkJoinInternal(sources, null);\n}\nfunction forkJoinInternal(sources, keys) {\n    return new Observable(subscriber => {\n        const len = sources.length;\n        if (len === 0) {\n            subscriber.complete();\n            return;\n        }\n        const values = new Array(len);\n        let completed = 0;\n        let emitted = 0;\n        for (let i = 0; i < len; i++) {\n            const source = from(sources[i]);\n            let hasValue = false;\n            subscriber.add(source.subscribe({\n                next: value => {\n                    if (!hasValue) {\n                        hasValue = true;\n                        emitted++;\n                    }\n                    values[i] = value;\n                },\n                error: err => subscriber.error(err),\n                complete: () => {\n                    completed++;\n                    if (completed === len || !hasValue) {\n                        if (emitted === len) {\n                            subscriber.next(keys ?\n                                keys.reduce((result, key, i) => (result[key] = values[i], result), {}) :\n                                values);\n                        }\n                        subscriber.complete();\n                    }\n                }\n            }));\n        }\n    });\n}\n//# sourceMappingURL=forkJoin.js.map","import { Subscriber } from '../Subscriber';\nexport function filter(predicate, thisArg) {\n    return function filterOperatorFunction(source) {\n        return source.lift(new FilterOperator(predicate, thisArg));\n    };\n}\nclass FilterOperator {\n    constructor(predicate, thisArg) {\n        this.predicate = predicate;\n        this.thisArg = thisArg;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new FilterSubscriber(subscriber, this.predicate, this.thisArg));\n    }\n}\nclass FilterSubscriber extends Subscriber {\n    constructor(destination, predicate, thisArg) {\n        super(destination);\n        this.predicate = predicate;\n        this.thisArg = thisArg;\n        this.count = 0;\n    }\n    _next(value) {\n        let result;\n        try {\n            result = this.predicate.call(this.thisArg, value, this.count++);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        if (result) {\n            this.destination.next(value);\n        }\n    }\n}\n//# sourceMappingURL=filter.js.map","import { ReplaySubject } from '../ReplaySubject';\nexport function shareReplay(configOrBufferSize, windowTime, scheduler) {\n    let config;\n    if (configOrBufferSize && typeof configOrBufferSize === 'object') {\n        config = configOrBufferSize;\n    }\n    else {\n        config = {\n            bufferSize: configOrBufferSize,\n            windowTime,\n            refCount: false,\n            scheduler\n        };\n    }\n    return (source) => source.lift(shareReplayOperator(config));\n}\nfunction shareReplayOperator({ bufferSize = Number.POSITIVE_INFINITY, windowTime = Number.POSITIVE_INFINITY, refCount: useRefCount, scheduler }) {\n    let subject;\n    let refCount = 0;\n    let subscription;\n    let hasError = false;\n    let isComplete = false;\n    return function shareReplayOperation(source) {\n        refCount++;\n        if (!subject || hasError) {\n            hasError = false;\n            subject = new ReplaySubject(bufferSize, windowTime, scheduler);\n            subscription = source.subscribe({\n                next(value) { subject.next(value); },\n                error(err) {\n                    hasError = true;\n                    subject.error(err);\n                },\n                complete() {\n                    isComplete = true;\n                    subscription = undefined;\n                    subject.complete();\n                },\n            });\n        }\n        const innerSub = subject.subscribe(this);\n        this.add(() => {\n            refCount--;\n            innerSub.unsubscribe();\n            if (subscription && !isComplete && useRefCount && refCount === 0) {\n                subscription.unsubscribe();\n                subscription = undefined;\n                subject = undefined;\n            }\n        });\n    };\n}\n//# sourceMappingURL=shareReplay.js.map","const ArgumentOutOfRangeErrorImpl = (() => {\n    function ArgumentOutOfRangeErrorImpl() {\n        Error.call(this);\n        this.message = 'argument out of range';\n        this.name = 'ArgumentOutOfRangeError';\n        return this;\n    }\n    ArgumentOutOfRangeErrorImpl.prototype = Object.create(Error.prototype);\n    return ArgumentOutOfRangeErrorImpl;\n})();\nexport const ArgumentOutOfRangeError = ArgumentOutOfRangeErrorImpl;\n//# sourceMappingURL=ArgumentOutOfRangeError.js.map","import { Subscriber } from '../Subscriber';\nimport { ArgumentOutOfRangeError } from '../util/ArgumentOutOfRangeError';\nimport { empty } from '../observable/empty';\nexport function take(count) {\n    return (source) => {\n        if (count === 0) {\n            return empty();\n        }\n        else {\n            return source.lift(new TakeOperator(count));\n        }\n    };\n}\nclass TakeOperator {\n    constructor(total) {\n        this.total = total;\n        if (this.total < 0) {\n            throw new ArgumentOutOfRangeError;\n        }\n    }\n    call(subscriber, source) {\n        return source.subscribe(new TakeSubscriber(subscriber, this.total));\n    }\n}\nclass TakeSubscriber extends Subscriber {\n    constructor(destination, total) {\n        super(destination);\n        this.total = total;\n        this.count = 0;\n    }\n    _next(value) {\n        const total = this.total;\n        const count = ++this.count;\n        if (count <= total) {\n            this.destination.next(value);\n            if (count === total) {\n                this.destination.complete();\n                this.unsubscribe();\n            }\n        }\n    }\n}\n//# sourceMappingURL=take.js.map","import { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { map } from './map';\nimport { from } from '../observable/from';\nexport function exhaustMap(project, resultSelector) {\n    if (resultSelector) {\n        return (source) => source.pipe(exhaustMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii)))));\n    }\n    return (source) => source.lift(new ExhaustMapOperator(project));\n}\nclass ExhaustMapOperator {\n    constructor(project) {\n        this.project = project;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new ExhaustMapSubscriber(subscriber, this.project));\n    }\n}\nclass ExhaustMapSubscriber extends OuterSubscriber {\n    constructor(destination, project) {\n        super(destination);\n        this.project = project;\n        this.hasSubscription = false;\n        this.hasCompleted = false;\n        this.index = 0;\n    }\n    _next(value) {\n        if (!this.hasSubscription) {\n            this.tryNext(value);\n        }\n    }\n    tryNext(value) {\n        let result;\n        const index = this.index++;\n        try {\n            result = this.project(value, index);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.hasSubscription = true;\n        this._innerSub(result, value, index);\n    }\n    _innerSub(result, value, index) {\n        const innerSubscriber = new InnerSubscriber(this, value, index);\n        const destination = this.destination;\n        destination.add(innerSubscriber);\n        const innerSubscription = subscribeToResult(this, result, undefined, undefined, innerSubscriber);\n        if (innerSubscription !== innerSubscriber) {\n            destination.add(innerSubscription);\n        }\n    }\n    _complete() {\n        this.hasCompleted = true;\n        if (!this.hasSubscription) {\n            this.destination.complete();\n        }\n        this.unsubscribe();\n    }\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(innerValue);\n    }\n    notifyError(err) {\n        this.destination.error(err);\n    }\n    notifyComplete(innerSub) {\n        const destination = this.destination;\n        destination.remove(innerSub);\n        this.hasSubscription = false;\n        if (this.hasCompleted) {\n            this.destination.complete();\n        }\n    }\n}\n//# sourceMappingURL=exhaustMap.js.map","import { Subscriber } from '../Subscriber';\nexport function defaultIfEmpty(defaultValue = null) {\n    return (source) => source.lift(new DefaultIfEmptyOperator(defaultValue));\n}\nclass DefaultIfEmptyOperator {\n    constructor(defaultValue) {\n        this.defaultValue = defaultValue;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new DefaultIfEmptySubscriber(subscriber, this.defaultValue));\n    }\n}\nclass DefaultIfEmptySubscriber extends Subscriber {\n    constructor(destination, defaultValue) {\n        super(destination);\n        this.defaultValue = defaultValue;\n        this.isEmpty = true;\n    }\n    _next(value) {\n        this.isEmpty = false;\n        this.destination.next(value);\n    }\n    _complete() {\n        if (this.isEmpty) {\n            this.destination.next(this.defaultValue);\n        }\n        this.destination.complete();\n    }\n}\n//# sourceMappingURL=defaultIfEmpty.js.map","import { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function catchError(selector) {\n    return function catchErrorOperatorFunction(source) {\n        const operator = new CatchOperator(selector);\n        const caught = source.lift(operator);\n        return (operator.caught = caught);\n    };\n}\nclass CatchOperator {\n    constructor(selector) {\n        this.selector = selector;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new CatchSubscriber(subscriber, this.selector, this.caught));\n    }\n}\nclass CatchSubscriber extends OuterSubscriber {\n    constructor(destination, selector, caught) {\n        super(destination);\n        this.selector = selector;\n        this.caught = caught;\n    }\n    error(err) {\n        if (!this.isStopped) {\n            let result;\n            try {\n                result = this.selector(err, this.caught);\n            }\n            catch (err2) {\n                super.error(err2);\n                return;\n            }\n            this._unsubscribeAndRecycle();\n            const innerSubscriber = new InnerSubscriber(this, undefined, undefined);\n            this.add(innerSubscriber);\n            const innerSubscription = subscribeToResult(this, result, undefined, undefined, innerSubscriber);\n            if (innerSubscription !== innerSubscriber) {\n                this.add(innerSubscription);\n            }\n        }\n    }\n}\n//# sourceMappingURL=catchError.js.map","import { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function takeUntil(notifier) {\n    return (source) => source.lift(new TakeUntilOperator(notifier));\n}\nclass TakeUntilOperator {\n    constructor(notifier) {\n        this.notifier = notifier;\n    }\n    call(subscriber, source) {\n        const takeUntilSubscriber = new TakeUntilSubscriber(subscriber);\n        const notifierSubscription = subscribeToResult(takeUntilSubscriber, this.notifier);\n        if (notifierSubscription && !takeUntilSubscriber.seenValue) {\n            takeUntilSubscriber.add(notifierSubscription);\n            return source.subscribe(takeUntilSubscriber);\n        }\n        return takeUntilSubscriber;\n    }\n}\nclass TakeUntilSubscriber extends OuterSubscriber {\n    constructor(destination) {\n        super(destination);\n        this.seenValue = false;\n    }\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.seenValue = true;\n        this.complete();\n    }\n    notifyComplete() {\n    }\n}\n//# sourceMappingURL=takeUntil.js.map","export function noop() { }\n//# sourceMappingURL=noop.js.map","import { Subscriber } from '../Subscriber';\nimport { noop } from '../util/noop';\nimport { isFunction } from '../util/isFunction';\nexport function tap(nextOrObserver, error, complete) {\n    return function tapOperatorFunction(source) {\n        return source.lift(new DoOperator(nextOrObserver, error, complete));\n    };\n}\nclass DoOperator {\n    constructor(nextOrObserver, error, complete) {\n        this.nextOrObserver = nextOrObserver;\n        this.error = error;\n        this.complete = complete;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete));\n    }\n}\nclass TapSubscriber extends Subscriber {\n    constructor(destination, observerOrNext, error, complete) {\n        super(destination);\n        this._tapNext = noop;\n        this._tapError = noop;\n        this._tapComplete = noop;\n        this._tapError = error || noop;\n        this._tapComplete = complete || noop;\n        if (isFunction(observerOrNext)) {\n            this._context = this;\n            this._tapNext = observerOrNext;\n        }\n        else if (observerOrNext) {\n            this._context = observerOrNext;\n            this._tapNext = observerOrNext.next || noop;\n            this._tapError = observerOrNext.error || noop;\n            this._tapComplete = observerOrNext.complete || noop;\n        }\n    }\n    _next(value) {\n        try {\n            this._tapNext.call(this._context, value);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(value);\n    }\n    _error(err) {\n        try {\n            this._tapError.call(this._context, err);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.error(err);\n    }\n    _complete() {\n        try {\n            this._tapComplete.call(this._context);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        return this.destination.complete();\n    }\n}\n//# sourceMappingURL=tap.js.map","import { Subscriber } from '../Subscriber';\nexport function distinctUntilChanged(compare, keySelector) {\n    return (source) => source.lift(new DistinctUntilChangedOperator(compare, keySelector));\n}\nclass DistinctUntilChangedOperator {\n    constructor(compare, keySelector) {\n        this.compare = compare;\n        this.keySelector = keySelector;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new DistinctUntilChangedSubscriber(subscriber, this.compare, this.keySelector));\n    }\n}\nclass DistinctUntilChangedSubscriber extends Subscriber {\n    constructor(destination, compare, keySelector) {\n        super(destination);\n        this.keySelector = keySelector;\n        this.hasKey = false;\n        if (typeof compare === 'function') {\n            this.compare = compare;\n        }\n    }\n    compare(x, y) {\n        return x === y;\n    }\n    _next(value) {\n        let key;\n        try {\n            const { keySelector } = this;\n            key = keySelector ? keySelector(value) : value;\n        }\n        catch (err) {\n            return this.destination.error(err);\n        }\n        let result = false;\n        if (this.hasKey) {\n            try {\n                const { compare } = this;\n                result = compare(this.key, key);\n            }\n            catch (err) {\n                return this.destination.error(err);\n            }\n        }\n        else {\n            this.hasKey = true;\n        }\n        if (!result) {\n            this.key = key;\n            this.destination.next(value);\n        }\n    }\n}\n//# sourceMappingURL=distinctUntilChanged.js.map","import { NgZone, Injectable, Inject, PLATFORM_ID, InjectionToken, Optional, SkipSelf, ErrorHandler, Injector, isDevMode, NgModule, APP_BOOTSTRAP_LISTENER } from '@angular/core';\nimport { memoize, INITIAL_STATE_TOKEN, NgxsBootstrapper, isAngularInTestMode, NGXS_STATE_CONTEXT_FACTORY, NGXS_STATE_FACTORY, InitialState } from '@ngxs/store/internals';\nimport { isPlatformServer } from '@angular/common';\nimport { Observable, Subject, BehaviorSubject, of, forkJoin, throwError, EMPTY, from, ReplaySubject } from 'rxjs';\nimport { filter, map, shareReplay, take, exhaustMap, mergeMap, defaultIfEmpty, catchError, takeUntil, tap, distinctUntilChanged } from 'rxjs/operators';\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/** @enum {string} */\r\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@ngxs/store/internals';\nconst VALIDATION_CODE = {\r\n    STATE_NAME: 'STATE_NAME',\r\n    STATE_UNIQUE: 'STATE_UNIQUE',\r\n    STATE_NAME_PROPERTY: 'STATE_NAME_PROPERTY',\r\n    STATE_DECORATOR: 'STATE_DECORATOR',\r\n    INCORRECT_PRODUCTION: 'INCORRECT_PRODUCTION',\r\n    INCORRECT_DEVELOPMENT: 'INCORRECT_DEVELOPMENT',\r\n    SELECT_FACTORY_NOT_CONNECTED: 'SELECT_FACTORY_NOT_CONNECTED',\r\n    ACTION_DECORATOR: 'ACTION_DECORATOR',\r\n    SELECTOR_DECORATOR: 'SELECTOR_DECORATOR',\r\n    ZONE_WARNING: 'ZONE_WARNING',\r\n    PATCHING_ARRAY: 'PATCHING_ARRAY',\r\n    PATCHING_PRIMITIVE: 'PATCHING_PRIMITIVE',\r\n    UNDECORATED_STATE_IN_IVY: 'UNDECORATED_STATE_IN_IVY',\r\n};\r\n/** @type {?} */\r\nconst CONFIG_MESSAGES = {\r\n    [VALIDATION_CODE.STATE_NAME]: (/**\r\n     * @param {?} name\r\n     * @return {?}\r\n     */\r\n    (name) => `${name} is not a valid state name. It needs to be a valid object property name.`),\r\n    [VALIDATION_CODE.STATE_NAME_PROPERTY]: (/**\r\n     * @return {?}\r\n     */\r\n    () => `States must register a 'name' property`),\r\n    [VALIDATION_CODE.STATE_UNIQUE]: (/**\r\n     * @param {?} current\r\n     * @param {?} newName\r\n     * @param {?} oldName\r\n     * @return {?}\r\n     */\r\n    (current, newName, oldName) => `State name '${current}' from ${newName} already exists in ${oldName}`),\r\n    [VALIDATION_CODE.STATE_DECORATOR]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'States must be decorated with @State() decorator'),\r\n    [VALIDATION_CODE.INCORRECT_PRODUCTION]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'Angular is running in production mode but NGXS is still running in the development mode!\\n' +\r\n        'Please set developmentMode to false on the NgxsModule options when in production mode.\\n' +\r\n        'NgxsModule.forRoot(states, { developmentMode: !environment.production })'),\r\n    [VALIDATION_CODE.INCORRECT_DEVELOPMENT]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'RECOMMENDATION: Set developmentMode to true on the NgxsModule when Angular is running in development mode.\\n' +\r\n        'NgxsModule.forRoot(states, { developmentMode: !environment.production })'),\r\n    [VALIDATION_CODE.SELECT_FACTORY_NOT_CONNECTED]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'You have forgotten to import the NGXS module!'),\r\n    [VALIDATION_CODE.ACTION_DECORATOR]: (/**\r\n     * @return {?}\r\n     */\r\n    () => '@Action() decorator cannot be used with static methods'),\r\n    [VALIDATION_CODE.SELECTOR_DECORATOR]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'Selectors only work on methods'),\r\n    [VALIDATION_CODE.ZONE_WARNING]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'Your application was bootstrapped with nooped zone and your execution strategy requires an actual NgZone!\\n' +\r\n        'Please set the value of the executionStrategy property to NoopNgxsExecutionStrategy.\\n' +\r\n        'NgxsModule.forRoot(states, { executionStrategy: NoopNgxsExecutionStrategy })'),\r\n    [VALIDATION_CODE.PATCHING_ARRAY]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'Patching arrays is not supported.'),\r\n    [VALIDATION_CODE.PATCHING_PRIMITIVE]: (/**\r\n     * @return {?}\r\n     */\r\n    () => 'Patching primitives is not supported.'),\r\n    [VALIDATION_CODE.UNDECORATED_STATE_IN_IVY]: (/**\r\n     * @param {?} name\r\n     * @return {?}\r\n     */\r\n    (name) => `'${name}' class should be decorated with @Injectable() right after the @State() decorator`)\r\n};\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass DispatchOutsideZoneNgxsExecutionStrategy {\r\n    /**\r\n     * @param {?} _ngZone\r\n     * @param {?} _platformId\r\n     */\r\n    constructor(_ngZone, _platformId) {\r\n        this._ngZone = _ngZone;\r\n        this._platformId = _platformId;\r\n        this.verifyZoneIsNotNooped(this._ngZone);\r\n    }\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    enter(func) {\r\n        if (isPlatformServer(this._platformId)) {\r\n            return this.runInsideAngular(func);\r\n        }\r\n        return this.runOutsideAngular(func);\r\n    }\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    leave(func) {\r\n        return this.runInsideAngular(func);\r\n    }\r\n    /**\r\n     * @private\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    runInsideAngular(func) {\r\n        if (NgZone.isInAngularZone()) {\r\n            return func();\r\n        }\r\n        return this._ngZone.run(func);\r\n    }\r\n    /**\r\n     * @private\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    runOutsideAngular(func) {\r\n        if (NgZone.isInAngularZone()) {\r\n            return this._ngZone.runOutsideAngular(func);\r\n        }\r\n        return func();\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} ngZone\r\n     * @return {?}\r\n     */\r\n    verifyZoneIsNotNooped(ngZone) {\r\n        // `NoopNgZone` is not exposed publicly as it doesn't expect\r\n        // to be used outside of the core Angular code, thus we just have\r\n        // to check if the zone doesn't extend or instanceof `NgZone`\r\n        if (ngZone instanceof NgZone) {\r\n            return;\r\n        }\r\n        console.warn(CONFIG_MESSAGES[VALIDATION_CODE.ZONE_WARNING]());\r\n    }\r\n}\nDispatchOutsideZoneNgxsExecutionStrategy.ɵfac = function DispatchOutsideZoneNgxsExecutionStrategy_Factory(t) { return new (t || DispatchOutsideZoneNgxsExecutionStrategy)(ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(PLATFORM_ID)); };\nDispatchOutsideZoneNgxsExecutionStrategy.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: DispatchOutsideZoneNgxsExecutionStrategy, factory: DispatchOutsideZoneNgxsExecutionStrategy.ɵfac });\r\n/** @nocollapse */\r\nDispatchOutsideZoneNgxsExecutionStrategy.ctorParameters = () => [\r\n    { type: NgZone },\r\n    { type: String, decorators: [{ type: Inject, args: [PLATFORM_ID,] }] }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DispatchOutsideZoneNgxsExecutionStrategy, [{\n        type: Injectable\n    }], function () { return [{ type: ɵngcc0.NgZone }, { type: String, decorators: [{\n                type: Inject,\n                args: [PLATFORM_ID]\n            }] }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    DispatchOutsideZoneNgxsExecutionStrategy.prototype._ngZone;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    DispatchOutsideZoneNgxsExecutionStrategy.prototype._platformId;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/** @type {?} */\r\nconst ROOT_STATE_TOKEN = new InjectionToken('ROOT_STATE_TOKEN');\r\n/** @type {?} */\r\nconst FEATURE_STATE_TOKEN = new InjectionToken('FEATURE_STATE_TOKEN');\r\n/** @type {?} */\r\nconst NGXS_PLUGINS = new InjectionToken('NGXS_PLUGINS');\r\n/** @type {?} */\r\nconst NG_TEST_MODE = new InjectionToken('NG_TEST_MODE');\r\n/** @type {?} */\r\nconst NG_DEV_MODE = new InjectionToken('NG_DEV_MODE');\r\n/** @type {?} */\r\nconst META_KEY = 'NGXS_META';\r\n/** @type {?} */\r\nconst META_OPTIONS_KEY = 'NGXS_OPTIONS_META';\r\n/** @type {?} */\r\nconst SELECTOR_META_KEY = 'NGXS_SELECTOR_META';\r\n/**\r\n * The NGXS config settings.\r\n */\r\nclass NgxsConfig {\r\n    constructor() {\r\n        /**\r\n         * Defining the default state before module initialization\r\n         * This is convenient if we need to create a define our own set of states.\r\n         * @deprecated will be removed after v4\r\n         * (default: {})\r\n         */\r\n        this.defaultsState = {};\r\n        /**\r\n         * Defining shared selector options\r\n         */\r\n        this.selectorOptions = {\r\n            injectContainerState: true,\r\n            // TODO: default is true in v3, will change in v4\r\n            suppressErrors: true // TODO: default is true in v3, will change in v4\r\n        };\r\n        this.compatibility = {\r\n            strictContentSecurityPolicy: false\r\n        };\r\n        this.executionStrategy = DispatchOutsideZoneNgxsExecutionStrategy;\r\n    }\r\n}\nNgxsConfig.ɵfac = function NgxsConfig_Factory(t) { return new (t || NgxsConfig)(); };\nNgxsConfig.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: NgxsConfig, factory: NgxsConfig.ɵfac });\r\n/** @nocollapse */\r\nNgxsConfig.ctorParameters = () => [];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgxsConfig, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\r\nif (false) {\r\n    /**\r\n     * Run in development mode. This will add additional debugging features:\r\n     * - Object.freeze on the state and actions to guarantee immutability\r\n     * (default: false)\r\n     * @type {?}\r\n     */\r\n    NgxsConfig.prototype.developmentMode;\r\n    /** @type {?} */\r\n    NgxsConfig.prototype.compatibility;\r\n    /**\r\n     * Determines the execution context to perform async operations inside. An implementation can be\r\n     * provided to override the default behaviour where the async operations are run\r\n     * outside Angular's zone but all observable behaviours of NGXS are run back inside Angular's zone.\r\n     * These observable behaviours are from:\r\n     *   `\\@Select(...)`, `store.select(...)`, `actions.subscribe(...)` or `store.dispatch(...).subscribe(...)`\r\n     * Every `zone.run` causes Angular to run change detection on the whole tree (`app.tick()`) so of your\r\n     * application doesn't rely on zone.js running change detection then you can switch to the\r\n     * `NoopNgxsExecutionStrategy` that doesn't interact with zones.\r\n     * (default: null)\r\n     * @type {?}\r\n     */\r\n    NgxsConfig.prototype.executionStrategy;\r\n    /**\r\n     * Defining the default state before module initialization\r\n     * This is convenient if we need to create a define our own set of states.\r\n     * @deprecated will be removed after v4\r\n     * (default: {})\r\n     * @type {?}\r\n     */\r\n    NgxsConfig.prototype.defaultsState;\r\n    /**\r\n     * Defining shared selector options\r\n     * @type {?}\r\n     */\r\n    NgxsConfig.prototype.selectorOptions;\r\n}\r\n/**\r\n * State context provided to the actions in the state.\r\n * @record\r\n * @template T\r\n */\r\nfunction StateContext() { }\r\nif (false) {\r\n    /**\r\n     * Get the current state.\r\n     * @return {?}\r\n     */\r\n    StateContext.prototype.getState = function () { };\r\n    /**\r\n     * Reset the state to a new value.\r\n     * @param {?} val\r\n     * @return {?}\r\n     */\r\n    StateContext.prototype.setState = function (val) { };\r\n    /**\r\n     * Patch the existing state with the provided value.\r\n     * @param {?} val\r\n     * @return {?}\r\n     */\r\n    StateContext.prototype.patchState = function (val) { };\r\n    /**\r\n     * Dispatch a new action and return the dispatched observable.\r\n     * @param {?} actions\r\n     * @return {?}\r\n     */\r\n    StateContext.prototype.dispatch = function (actions) { };\r\n}\r\n/**\r\n * Plugin interface\r\n * @record\r\n */\r\nfunction NgxsPlugin() { }\r\nif (false) {\r\n    /**\r\n     * Handle the state/action before its submitted to the state handlers.\r\n     * @param {?} state\r\n     * @param {?} action\r\n     * @param {?} next\r\n     * @return {?}\r\n     */\r\n    NgxsPlugin.prototype.handle = function (state, action, next) { };\r\n}\r\n/**\r\n * Options that can be provided to the store.\r\n * @record\r\n * @template T\r\n */\r\nfunction StoreOptions() { }\r\nif (false) {\r\n    /**\r\n     * Name of the state. Required.\r\n     * @type {?}\r\n     */\r\n    StoreOptions.prototype.name;\r\n    /**\r\n     * Default values for the state. If not provided, uses empty object.\r\n     * @type {?|undefined}\r\n     */\r\n    StoreOptions.prototype.defaults;\r\n    /**\r\n     * Sub states for the given state.\r\n     * @type {?|undefined}\r\n     */\r\n    StoreOptions.prototype.children;\r\n}\r\n/**\r\n * Represents a basic change from a previous to a new value for a single state instance.\r\n * Passed as a value in a NgxsSimpleChanges object to the ngxsOnChanges hook.\r\n * @template T\r\n */\r\nclass NgxsSimpleChange {\r\n    /**\r\n     * @param {?} previousValue\r\n     * @param {?} currentValue\r\n     * @param {?} firstChange\r\n     */\r\n    constructor(previousValue, currentValue, firstChange) {\r\n        this.previousValue = previousValue;\r\n        this.currentValue = currentValue;\r\n        this.firstChange = firstChange;\r\n    }\r\n}\r\nif (false) {\r\n    /** @type {?} */\r\n    NgxsSimpleChange.prototype.previousValue;\r\n    /** @type {?} */\r\n    NgxsSimpleChange.prototype.currentValue;\r\n    /** @type {?} */\r\n    NgxsSimpleChange.prototype.firstChange;\r\n}\r\n/**\r\n * On init interface\r\n * @record\r\n */\r\nfunction NgxsOnInit() { }\r\nif (false) {\r\n    /**\r\n     * @param {?=} ctx\r\n     * @return {?}\r\n     */\r\n    NgxsOnInit.prototype.ngxsOnInit = function (ctx) { };\r\n}\r\n/**\r\n * On change interface\r\n * @record\r\n */\r\nfunction NgxsOnChanges() { }\r\nif (false) {\r\n    /**\r\n     * @param {?} change\r\n     * @return {?}\r\n     */\r\n    NgxsOnChanges.prototype.ngxsOnChanges = function (change) { };\r\n}\r\n/**\r\n * After bootstrap interface\r\n * @record\r\n */\r\nfunction NgxsAfterBootstrap() { }\r\nif (false) {\r\n    /**\r\n     * @param {?=} ctx\r\n     * @return {?}\r\n     */\r\n    NgxsAfterBootstrap.prototype.ngxsAfterBootstrap = function (ctx) { };\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/*\r\n * Internal execution strategy injection token\r\n */\r\n/** @type {?} */\r\nconst NGXS_EXECUTION_STRATEGY = new InjectionToken('NGXS_EXECUTION_STRATEGY');\r\n/**\r\n * @record\r\n */\r\nfunction NgxsExecutionStrategy() { }\r\nif (false) {\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    NgxsExecutionStrategy.prototype.enter = function (func) { };\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    NgxsExecutionStrategy.prototype.leave = function (func) { };\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Returns the type from an action instance/class.\r\n * @ignore\r\n * @param {?} action\r\n * @return {?}\r\n */\r\nfunction getActionTypeFromInstance(action) {\r\n    if (action.constructor && action.constructor.type) {\r\n        return action.constructor.type;\r\n    }\r\n    return action.type;\r\n}\r\n/**\r\n * Matches a action\r\n * @ignore\r\n * @param {?} action1\r\n * @return {?}\r\n */\r\nfunction actionMatcher(action1) {\r\n    /** @type {?} */\r\n    const type1 = getActionTypeFromInstance(action1);\r\n    return (/**\r\n     * @param {?} action2\r\n     * @return {?}\r\n     */\r\n    function (action2) {\r\n        return type1 === getActionTypeFromInstance(action2);\r\n    });\r\n}\r\n/**\r\n * Set a deeply nested value. Example:\r\n *\r\n *   setValue({ foo: { bar: { eat: false } } },\r\n *      'foo.bar.eat', true) //=> { foo: { bar: { eat: true } } }\r\n *\r\n * While it traverses it also creates new objects from top down.\r\n *\r\n * @ignore\r\n * @type {?}\r\n */\r\nconst setValue = (/**\r\n * @param {?} obj\r\n * @param {?} prop\r\n * @param {?} val\r\n * @return {?}\r\n */\r\n(obj, prop, val) => {\r\n    obj = Object.assign({}, obj);\r\n    /** @type {?} */\r\n    const split = prop.split('.');\r\n    /** @type {?} */\r\n    const lastIndex = split.length - 1;\r\n    split.reduce((/**\r\n     * @param {?} acc\r\n     * @param {?} part\r\n     * @param {?} index\r\n     * @return {?}\r\n     */\r\n    (acc, part, index) => {\r\n        if (index === lastIndex) {\r\n            acc[part] = val;\r\n        }\r\n        else {\r\n            acc[part] = Array.isArray(acc[part]) ? acc[part].slice() : Object.assign({}, acc[part]);\r\n        }\r\n        return acc && acc[part];\r\n    }), obj);\r\n    return obj;\r\n});\r\n/**\r\n * Get a deeply nested value. Example:\r\n *\r\n *    getValue({ foo: bar: [] }, 'foo.bar') //=> []\r\n *\r\n * @ignore\r\n * @type {?}\r\n */\r\nconst getValue = (/**\r\n * @param {?} obj\r\n * @param {?} prop\r\n * @return {?}\r\n */\r\n(obj, prop) => prop.split('.').reduce((/**\r\n * @param {?} acc\r\n * @param {?} part\r\n * @return {?}\r\n */\r\n(acc, part) => acc && acc[part]), obj));\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @record\r\n * @template T, U\r\n */\r\nfunction StateClassInternal() { }\r\nif (false) {\r\n    /* Skipping unnamed member:\r\n    [META_KEY]?: MetaDataModel;*/\r\n    /* Skipping unnamed member:\r\n    [META_OPTIONS_KEY]?: StoreOptions<U>;*/\r\n}\r\n/**\r\n * @record\r\n * @template T\r\n */\r\nfunction StateOperations() { }\r\nif (false) {\r\n    /**\r\n     * @return {?}\r\n     */\r\n    StateOperations.prototype.getState = function () { };\r\n    /**\r\n     * @param {?} val\r\n     * @return {?}\r\n     */\r\n    StateOperations.prototype.setState = function (val) { };\r\n    /**\r\n     * @param {?} actions\r\n     * @return {?}\r\n     */\r\n    StateOperations.prototype.dispatch = function (actions) { };\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction MetaDataModel() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    MetaDataModel.prototype.name;\r\n    /** @type {?} */\r\n    MetaDataModel.prototype.actions;\r\n    /** @type {?} */\r\n    MetaDataModel.prototype.defaults;\r\n    /** @type {?} */\r\n    MetaDataModel.prototype.path;\r\n    /** @type {?} */\r\n    MetaDataModel.prototype.makeRootSelector;\r\n    /** @type {?|undefined} */\r\n    MetaDataModel.prototype.children;\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction RuntimeSelectorContext() { }\r\nif (false) {\r\n    /**\r\n     * @param {?} key\r\n     * @return {?}\r\n     */\r\n    RuntimeSelectorContext.prototype.getStateGetter = function (key) { };\r\n    /**\r\n     * @param {?=} localOptions\r\n     * @return {?}\r\n     */\r\n    RuntimeSelectorContext.prototype.getSelectorOptions = function (localOptions) { };\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction SharedSelectorOptions() { }\r\nif (false) {\r\n    /** @type {?|undefined} */\r\n    SharedSelectorOptions.prototype.injectContainerState;\r\n    /** @type {?|undefined} */\r\n    SharedSelectorOptions.prototype.suppressErrors;\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction SelectorMetaDataModel() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    SelectorMetaDataModel.prototype.makeRootSelector;\r\n    /** @type {?} */\r\n    SelectorMetaDataModel.prototype.originalFn;\r\n    /** @type {?} */\r\n    SelectorMetaDataModel.prototype.containerClass;\r\n    /** @type {?} */\r\n    SelectorMetaDataModel.prototype.selectorName;\r\n    /** @type {?} */\r\n    SelectorMetaDataModel.prototype.getSelectorOptions;\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction MappedStore() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    MappedStore.prototype.name;\r\n    /** @type {?} */\r\n    MappedStore.prototype.isInitialised;\r\n    /** @type {?} */\r\n    MappedStore.prototype.actions;\r\n    /** @type {?} */\r\n    MappedStore.prototype.defaults;\r\n    /** @type {?} */\r\n    MappedStore.prototype.instance;\r\n    /** @type {?} */\r\n    MappedStore.prototype.path;\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction StatesAndDefaults() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    StatesAndDefaults.prototype.defaults;\r\n    /** @type {?} */\r\n    StatesAndDefaults.prototype.states;\r\n}\r\n/**\r\n * @record\r\n * @template T\r\n */\r\nfunction RootStateDiff() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    RootStateDiff.prototype.currentAppState;\r\n    /** @type {?} */\r\n    RootStateDiff.prototype.newAppState;\r\n}\r\n/**\r\n * Ensures metadata is attached to the class and returns it.\r\n *\r\n * @ignore\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction ensureStoreMetadata(target) {\r\n    if (!target.hasOwnProperty(META_KEY)) {\r\n        /** @type {?} */\r\n        const defaultMetadata = {\r\n            name: null,\r\n            actions: {},\r\n            defaults: {},\r\n            path: null,\r\n            /**\r\n             * @param {?} context\r\n             * @return {?}\r\n             */\r\n            makeRootSelector(context) {\r\n                return context.getStateGetter(defaultMetadata.name);\r\n            },\r\n            children: []\r\n        };\r\n        Object.defineProperty(target, META_KEY, { value: defaultMetadata });\r\n    }\r\n    return getStoreMetadata(target);\r\n}\r\n/**\r\n * Get the metadata attached to the state class if it exists.\r\n *\r\n * @ignore\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction getStoreMetadata(target) {\r\n    return (/** @type {?} */ (target[META_KEY]));\r\n}\r\n/**\r\n * Ensures metadata is attached to the selector and returns it.\r\n *\r\n * @ignore\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction ensureSelectorMetadata(target) {\r\n    if (!target.hasOwnProperty(SELECTOR_META_KEY)) {\r\n        /** @type {?} */\r\n        const defaultMetadata = {\r\n            makeRootSelector: null,\r\n            originalFn: null,\r\n            containerClass: null,\r\n            selectorName: null,\r\n            getSelectorOptions: (/**\r\n             * @return {?}\r\n             */\r\n            () => ({}))\r\n        };\r\n        Object.defineProperty(target, SELECTOR_META_KEY, { value: defaultMetadata });\r\n    }\r\n    return getSelectorMetadata(target);\r\n}\r\n/**\r\n * Get the metadata attached to the selector if it exists.\r\n *\r\n * @ignore\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction getSelectorMetadata(target) {\r\n    return target[SELECTOR_META_KEY];\r\n}\r\n/**\r\n * Get a deeply nested value. Example:\r\n *\r\n *    getValue({ foo: bar: [] }, 'foo.bar') //=> []\r\n *\r\n * Note: This is not as fast as the `fastPropGetter` but is strict Content Security Policy compliant.\r\n * See perf hit: https://jsperf.com/fast-value-getter-given-path/1\r\n *\r\n * @ignore\r\n * @param {?} paths\r\n * @return {?}\r\n */\r\nfunction compliantPropGetter(paths) {\r\n    /** @type {?} */\r\n    const copyOfPaths = paths.slice();\r\n    return (/**\r\n     * @param {?} obj\r\n     * @return {?}\r\n     */\r\n    obj => copyOfPaths.reduce((/**\r\n     * @param {?} acc\r\n     * @param {?} part\r\n     * @return {?}\r\n     */\r\n    (acc, part) => acc && acc[part]), obj));\r\n}\r\n/**\r\n * The generated function is faster than:\r\n * - pluck (Observable operator)\r\n * - memoize\r\n *\r\n * @ignore\r\n * @param {?} paths\r\n * @return {?}\r\n */\r\nfunction fastPropGetter(paths) {\r\n    /** @type {?} */\r\n    const segments = paths;\r\n    /** @type {?} */\r\n    let seg = 'store.' + segments[0];\r\n    /** @type {?} */\r\n    let i = 0;\r\n    /** @type {?} */\r\n    const l = segments.length;\r\n    /** @type {?} */\r\n    let expr = seg;\r\n    while (++i < l) {\r\n        expr = expr + ' && ' + (seg = seg + '.' + segments[i]);\r\n    }\r\n    /** @type {?} */\r\n    const fn = new Function('store', 'return ' + expr + ';');\r\n    return (/** @type {?} */ (fn));\r\n}\r\n/**\r\n * Get a deeply nested value. Example:\r\n *\r\n *    getValue({ foo: bar: [] }, 'foo.bar') //=> []\r\n *\r\n * @ignore\r\n * @param {?} paths\r\n * @param {?} config\r\n * @return {?}\r\n */\r\nfunction propGetter(paths, config) {\r\n    if (config && config.compatibility && config.compatibility.strictContentSecurityPolicy) {\r\n        return compliantPropGetter(paths);\r\n    }\r\n    else {\r\n        return fastPropGetter(paths);\r\n    }\r\n}\r\n/**\r\n * Given an array of states, it will return a object graph. Example:\r\n *    const states = [\r\n *      Cart,\r\n *      CartSaved,\r\n *      CartSavedItems\r\n *    ]\r\n *\r\n * would return:\r\n *\r\n *  const graph = {\r\n *    cart: ['saved'],\r\n *    saved: ['items'],\r\n *    items: []\r\n *  };\r\n *\r\n * @ignore\r\n * @param {?} stateClasses\r\n * @return {?}\r\n */\r\nfunction buildGraph(stateClasses) {\r\n    /** @type {?} */\r\n    const findName = (/**\r\n     * @param {?} stateClass\r\n     * @return {?}\r\n     */\r\n    (stateClass) => {\r\n        /** @type {?} */\r\n        const meta = stateClasses.find((/**\r\n         * @param {?} g\r\n         * @return {?}\r\n         */\r\n        g => g === stateClass));\r\n        if (!meta) {\r\n            throw new Error(`Child state not found: ${stateClass}. \\r\\nYou may have forgotten to add states to module`);\r\n        }\r\n        return (/** @type {?} */ ((/** @type {?} */ (meta[META_KEY])).name));\r\n    });\r\n    return stateClasses.reduce((/**\r\n     * @param {?} result\r\n     * @param {?} stateClass\r\n     * @return {?}\r\n     */\r\n    (result, stateClass) => {\r\n        const { name, children } = (/** @type {?} */ (stateClass[META_KEY]));\r\n        result[(/** @type {?} */ (name))] = (children || []).map(findName);\r\n        return result;\r\n    }), {});\r\n}\r\n/**\r\n * Given a states array, returns object graph\r\n * returning the name and state metadata. Example:\r\n *\r\n *  const graph = {\r\n *    cart: { metadata }\r\n *  };\r\n *\r\n * @ignore\r\n * @param {?} states\r\n * @return {?}\r\n */\r\nfunction nameToState(states) {\r\n    return states.reduce((/**\r\n     * @param {?} result\r\n     * @param {?} stateClass\r\n     * @return {?}\r\n     */\r\n    (result, stateClass) => {\r\n        /** @type {?} */\r\n        const meta = (/** @type {?} */ (stateClass[META_KEY]));\r\n        result[(/** @type {?} */ (meta.name))] = stateClass;\r\n        return result;\r\n    }), {});\r\n}\r\n/**\r\n * Given a object relationship graph will return the full path\r\n * for the child items. Example:\r\n *\r\n *  const graph = {\r\n *    cart: ['saved'],\r\n *    saved: ['items'],\r\n *    items: []\r\n *  };\r\n *\r\n * would return:\r\n *\r\n *  const r = {\r\n *    cart: 'cart',\r\n *    saved: 'cart.saved',\r\n *    items: 'cart.saved.items'\r\n *  };\r\n *\r\n * @ignore\r\n * @param {?} obj\r\n * @param {?=} newObj\r\n * @return {?}\r\n */\r\nfunction findFullParentPath(obj, newObj = {}) {\r\n    /** @type {?} */\r\n    const visit = (/**\r\n     * @param {?} child\r\n     * @param {?} keyToFind\r\n     * @return {?}\r\n     */\r\n    (child, keyToFind) => {\r\n        for (const key in child) {\r\n            if (child.hasOwnProperty(key) && child[key].indexOf(keyToFind) >= 0) {\r\n                /** @type {?} */\r\n                const parent = visit(child, key);\r\n                return parent !== null ? `${parent}.${key}` : key;\r\n            }\r\n        }\r\n        return null;\r\n    });\r\n    for (const key in obj) {\r\n        if (obj.hasOwnProperty(key)) {\r\n            /** @type {?} */\r\n            const parent = visit(obj, key);\r\n            newObj[key] = parent ? `${parent}.${key}` : key;\r\n        }\r\n    }\r\n    return newObj;\r\n}\r\n/**\r\n * Given a object graph, it will return the items topologically sorted Example:\r\n *\r\n *  const graph = {\r\n *    cart: ['saved'],\r\n *    saved: ['items'],\r\n *    items: []\r\n *  };\r\n *\r\n * would return:\r\n *\r\n *  const results = [\r\n *    'items',\r\n *    'saved',\r\n *    'cart'\r\n *  ];\r\n *\r\n * @ignore\r\n * @param {?} graph\r\n * @return {?}\r\n */\r\nfunction topologicalSort(graph) {\r\n    /** @type {?} */\r\n    const sorted = [];\r\n    /** @type {?} */\r\n    const visited = {};\r\n    /** @type {?} */\r\n    const visit = (/**\r\n     * @param {?} name\r\n     * @param {?=} ancestors\r\n     * @return {?}\r\n     */\r\n    (name, ancestors = []) => {\r\n        if (!Array.isArray(ancestors)) {\r\n            ancestors = [];\r\n        }\r\n        ancestors.push(name);\r\n        visited[name] = true;\r\n        graph[name].forEach((/**\r\n         * @param {?} dep\r\n         * @return {?}\r\n         */\r\n        (dep) => {\r\n            if (ancestors.indexOf(dep) >= 0) {\r\n                throw new Error(`Circular dependency '${dep}' is required by '${name}': ${ancestors.join(' -> ')}`);\r\n            }\r\n            if (visited[dep]) {\r\n                return;\r\n            }\r\n            visit(dep, ancestors.slice(0));\r\n        }));\r\n        if (sorted.indexOf(name) < 0) {\r\n            sorted.push(name);\r\n        }\r\n    });\r\n    Object.keys(graph).forEach((/**\r\n     * @param {?} k\r\n     * @return {?}\r\n     */\r\n    k => visit(k)));\r\n    return sorted.reverse();\r\n}\r\n/**\r\n * Returns if the parameter is a object or not.\r\n *\r\n * @ignore\r\n * @param {?} obj\r\n * @return {?}\r\n */\r\nfunction isObject(obj) {\r\n    return (typeof obj === 'object' && obj !== null) || typeof obj === 'function';\r\n}\r\n/**\r\n * @template T\r\n * @param {?} mappedStore\r\n * @param {?} diff\r\n * @return {?}\r\n */\r\nfunction getStateDiffChanges(mappedStore, diff) {\r\n    /** @type {?} */\r\n    const previousValue = getValue(diff.currentAppState, mappedStore.path);\r\n    /** @type {?} */\r\n    const currentValue = getValue(diff.newAppState, mappedStore.path);\r\n    return new NgxsSimpleChange(previousValue, currentValue, !mappedStore.isInitialised);\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @record\r\n * @template T, E\r\n */\r\nfunction ActionCompletion() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    ActionCompletion.prototype.action;\r\n    /** @type {?} */\r\n    ActionCompletion.prototype.result;\r\n}\r\n/**\r\n * RxJS operator for selecting out specific actions.\r\n *\r\n * This will grab actions that have just been dispatched as well as actions that have completed\r\n * @param {...?} allowedTypes\r\n * @return {?}\r\n */\r\nfunction ofAction(...allowedTypes) {\r\n    return ofActionOperator(allowedTypes);\r\n}\r\n/**\r\n * RxJS operator for selecting out specific actions.\r\n *\r\n * This will ONLY grab actions that have just been dispatched\r\n * @param {...?} allowedTypes\r\n * @return {?}\r\n */\r\nfunction ofActionDispatched(...allowedTypes) {\r\n    return ofActionOperator(allowedTypes, [\"DISPATCHED\" /* Dispatched */]);\r\n}\r\n/**\r\n * RxJS operator for selecting out specific actions.\r\n *\r\n * This will ONLY grab actions that have just been successfully completed\r\n * @param {...?} allowedTypes\r\n * @return {?}\r\n */\r\nfunction ofActionSuccessful(...allowedTypes) {\r\n    return ofActionOperator(allowedTypes, [\"SUCCESSFUL\" /* Successful */]);\r\n}\r\n/**\r\n * RxJS operator for selecting out specific actions.\r\n *\r\n * This will ONLY grab actions that have just been canceled\r\n * @param {...?} allowedTypes\r\n * @return {?}\r\n */\r\nfunction ofActionCanceled(...allowedTypes) {\r\n    return ofActionOperator(allowedTypes, [\"CANCELED\" /* Canceled */]);\r\n}\r\n/**\r\n * RxJS operator for selecting out specific actions.\r\n *\r\n * This will ONLY grab actions that have just been completed\r\n * @param {...?} allowedTypes\r\n * @return {?}\r\n */\r\nfunction ofActionCompleted(...allowedTypes) {\r\n    /** @type {?} */\r\n    const allowedStatuses = [\r\n        \"SUCCESSFUL\" /* Successful */,\r\n        \"CANCELED\" /* Canceled */,\r\n        \"ERRORED\" /* Errored */\r\n    ];\r\n    return ofActionOperator(allowedTypes, allowedStatuses, mapActionResult);\r\n}\r\n/**\r\n * RxJS operator for selecting out specific actions.\r\n *\r\n * This will ONLY grab actions that have just thrown an error\r\n * @param {...?} allowedTypes\r\n * @return {?}\r\n */\r\nfunction ofActionErrored(...allowedTypes) {\r\n    return ofActionOperator(allowedTypes, [\"ERRORED\" /* Errored */]);\r\n}\r\n/**\r\n * @template T\r\n * @param {?} allowedTypes\r\n * @param {?=} statuses\r\n * @param {?=} mapOperator\r\n * @return {?}\r\n */\r\nfunction ofActionOperator(allowedTypes, statuses, mapOperator = mapAction) {\r\n    /** @type {?} */\r\n    const allowedMap = createAllowedActionTypesMap(allowedTypes);\r\n    /** @type {?} */\r\n    const allowedStatusMap = statuses && createAllowedStatusesMap(statuses);\r\n    return (/**\r\n     * @param {?} o\r\n     * @return {?}\r\n     */\r\n    function (o) {\r\n        return o.pipe(filterStatus(allowedMap, allowedStatusMap), mapOperator());\r\n    });\r\n}\r\n/**\r\n * @param {?} allowedTypes\r\n * @param {?=} allowedStatuses\r\n * @return {?}\r\n */\r\nfunction filterStatus(allowedTypes, allowedStatuses) {\r\n    return filter((/**\r\n     * @param {?} ctx\r\n     * @return {?}\r\n     */\r\n    (ctx) => {\r\n        /** @type {?} */\r\n        const actionType = (/** @type {?} */ (getActionTypeFromInstance(ctx.action)));\r\n        /** @type {?} */\r\n        const typeMatch = allowedTypes[actionType];\r\n        /** @type {?} */\r\n        const statusMatch = allowedStatuses ? allowedStatuses[ctx.status] : true;\r\n        return typeMatch && statusMatch;\r\n    }));\r\n}\r\n/**\r\n * @return {?}\r\n */\r\nfunction mapActionResult() {\r\n    return map((/**\r\n     * @param {?} __0\r\n     * @return {?}\r\n     */\r\n    ({ action, status, error }) => {\r\n        return (/** @type {?} */ ({\r\n            action,\r\n            result: {\r\n                successful: \"SUCCESSFUL\" /* Successful */ === status,\r\n                canceled: \"CANCELED\" /* Canceled */ === status,\r\n                error\r\n            }\r\n        }));\r\n    }));\r\n}\r\n/**\r\n * @template T\r\n * @return {?}\r\n */\r\nfunction mapAction() {\r\n    return map((/**\r\n     * @param {?} ctx\r\n     * @return {?}\r\n     */\r\n    (ctx) => (/** @type {?} */ (ctx.action))));\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction FilterMap() { }\r\n/**\r\n * @param {?} types\r\n * @return {?}\r\n */\r\nfunction createAllowedActionTypesMap(types) {\r\n    return types.reduce((/**\r\n     * @param {?} filterMap\r\n     * @param {?} klass\r\n     * @return {?}\r\n     */\r\n    (filterMap, klass) => {\r\n        filterMap[(/** @type {?} */ (getActionTypeFromInstance(klass)))] = true;\r\n        return filterMap;\r\n    }), (/** @type {?} */ ({})));\r\n}\r\n/**\r\n * @param {?} statuses\r\n * @return {?}\r\n */\r\nfunction createAllowedStatusesMap(statuses) {\r\n    return statuses.reduce((/**\r\n     * @param {?} filterMap\r\n     * @param {?} status\r\n     * @return {?}\r\n     */\r\n    (filterMap, status) => {\r\n        filterMap[status] = true;\r\n        return filterMap;\r\n    }), (/** @type {?} */ ({})));\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Returns operator that will run\r\n * `subscribe` outside of the ngxs execution context\r\n * @template T\r\n * @param {?} ngxsExecutionStrategy\r\n * @return {?}\r\n */\r\nfunction leaveNgxs(ngxsExecutionStrategy) {\r\n    return (/**\r\n     * @param {?} source\r\n     * @return {?}\r\n     */\r\n    (source) => {\r\n        return new Observable((/**\r\n         * @param {?} sink\r\n         * @return {?}\r\n         */\r\n        (sink) => {\r\n            return source.subscribe({\r\n                /**\r\n                 * @param {?} value\r\n                 * @return {?}\r\n                 */\r\n                next(value) {\r\n                    ngxsExecutionStrategy.leave((/**\r\n                     * @return {?}\r\n                     */\r\n                    () => sink.next(value)));\r\n                },\r\n                /**\r\n                 * @param {?} error\r\n                 * @return {?}\r\n                 */\r\n                error(error) {\r\n                    ngxsExecutionStrategy.leave((/**\r\n                     * @return {?}\r\n                     */\r\n                    () => sink.error(error)));\r\n                },\r\n                /**\r\n                 * @return {?}\r\n                 */\r\n                complete() {\r\n                    ngxsExecutionStrategy.leave((/**\r\n                     * @return {?}\r\n                     */\r\n                    () => sink.complete()));\r\n                }\r\n            });\r\n        }));\r\n    });\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass InternalNgxsExecutionStrategy {\r\n    /**\r\n     * @param {?} _executionStrategy\r\n     */\r\n    constructor(_executionStrategy) {\r\n        this._executionStrategy = _executionStrategy;\r\n    }\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    enter(func) {\r\n        return this._executionStrategy.enter(func);\r\n    }\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    leave(func) {\r\n        return this._executionStrategy.leave(func);\r\n    }\r\n}\nInternalNgxsExecutionStrategy.ɵfac = function InternalNgxsExecutionStrategy_Factory(t) { return new (t || InternalNgxsExecutionStrategy)(ɵngcc0.ɵɵinject(NGXS_EXECUTION_STRATEGY)); };\nInternalNgxsExecutionStrategy.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: InternalNgxsExecutionStrategy, factory: InternalNgxsExecutionStrategy.ɵfac });\r\n/** @nocollapse */\r\nInternalNgxsExecutionStrategy.ctorParameters = () => [\r\n    { type: undefined, decorators: [{ type: Inject, args: [NGXS_EXECUTION_STRATEGY,] }] }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(InternalNgxsExecutionStrategy, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [NGXS_EXECUTION_STRATEGY]\n            }] }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalNgxsExecutionStrategy.prototype._executionStrategy;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/** @enum {string} */\r\nconst ActionStatus = {\r\n    Dispatched: 'DISPATCHED',\r\n    Successful: 'SUCCESSFUL',\r\n    Canceled: 'CANCELED',\r\n    Errored: 'ERRORED',\r\n};\r\n/**\r\n * @record\r\n * @template T\r\n */\r\nfunction ActionContext() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    ActionContext.prototype.status;\r\n    /** @type {?} */\r\n    ActionContext.prototype.action;\r\n    /** @type {?|undefined} */\r\n    ActionContext.prototype.error;\r\n}\r\n/**\r\n * Custom Subject that ensures that subscribers are notified of values in the order that they arrived.\r\n * A standard Subject does not have this guarantee.\r\n * For example, given the following code:\r\n * ```typescript\r\n *   const subject = new Subject<string>();\r\n * subject.subscribe(value => {\r\n * if (value === 'start') subject.next('end');\r\n * });\r\n * subject.subscribe(value => { });\r\n * subject.next('start');\r\n * ```\r\n * When `subject` is a standard `Subject<T>` the second subscriber would recieve `end` and then `start`.\r\n * When `subject` is a `OrderedSubject<T>` the second subscriber would recieve `start` and then `end`.\r\n * @template T\r\n */\r\nclass OrderedSubject extends Subject {\r\n    constructor() {\r\n        super(...arguments);\r\n        this._itemQueue = [];\r\n        this._busyPushingNext = false;\r\n    }\r\n    /**\r\n     * @param {?=} value\r\n     * @return {?}\r\n     */\r\n    next(value) {\r\n        if (this._busyPushingNext) {\r\n            this._itemQueue.unshift((/** @type {?} */ (value)));\r\n            return;\r\n        }\r\n        this._busyPushingNext = true;\r\n        super.next(value);\r\n        while (this._itemQueue.length > 0) {\r\n            /** @type {?} */\r\n            const nextValue = this._itemQueue.pop();\r\n            super.next(nextValue);\r\n        }\r\n        this._busyPushingNext = false;\r\n    }\r\n}\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    OrderedSubject.prototype._itemQueue;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    OrderedSubject.prototype._busyPushingNext;\r\n}\r\n/**\r\n * Internal Action stream that is emitted anytime an action is dispatched.\r\n */\r\nclass InternalActions extends OrderedSubject {\r\n}\nInternalActions.ɵfac = function InternalActions_Factory(t) { return ɵInternalActions_BaseFactory(t || InternalActions); };\nInternalActions.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: InternalActions, factory: InternalActions.ɵfac });\nconst ɵInternalActions_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(InternalActions);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(InternalActions, [{\n        type: Injectable\n    }], null, null); })();\r\n/**\r\n * Action stream that is emitted anytime an action is dispatched.\r\n *\r\n * You can listen to this in services to react without stores.\r\n */\r\nclass Actions extends Observable {\r\n    // This has to be `Observable<ActionContext>` in the v4. Because `InternalActions`\r\n    // is a `Subject<ActionContext>`. Leave it as `any` to avoid breaking changes\r\n    /**\r\n     * @param {?} internalActions$\r\n     * @param {?} internalExecutionStrategy\r\n     */\r\n    constructor(internalActions$, internalExecutionStrategy) {\r\n        super((/**\r\n         * @param {?} observer\r\n         * @return {?}\r\n         */\r\n        observer => {\r\n            /** @type {?} */\r\n            const childSubscription = internalActions$\r\n                .pipe(leaveNgxs(internalExecutionStrategy))\r\n                .subscribe({\r\n                next: (/**\r\n                 * @param {?} ctx\r\n                 * @return {?}\r\n                 */\r\n                ctx => observer.next(ctx)),\r\n                error: (/**\r\n                 * @param {?} error\r\n                 * @return {?}\r\n                 */\r\n                error => observer.error(error)),\r\n                complete: (/**\r\n                 * @return {?}\r\n                 */\r\n                () => observer.complete())\r\n            });\r\n            observer.add(childSubscription);\r\n        }));\r\n    }\r\n}\nActions.ɵfac = function Actions_Factory(t) { return new (t || Actions)(ɵngcc0.ɵɵinject(InternalActions), ɵngcc0.ɵɵinject(InternalNgxsExecutionStrategy)); };\nActions.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: Actions, factory: Actions.ɵfac });\r\n/** @nocollapse */\r\nActions.ctorParameters = () => [\r\n    { type: InternalActions },\r\n    { type: InternalNgxsExecutionStrategy }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Actions, [{\n        type: Injectable\n    }], function () { return [{ type: InternalActions }, { type: InternalNgxsExecutionStrategy }]; }, null); })();\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Composes a array of functions from left to right. Example:\r\n *\r\n *      compose([fn, final])(state, action);\r\n *\r\n * then the funcs have a signature like:\r\n *\r\n *      function fn (state, action, next) {\r\n *          console.log('here', state, action, next);\r\n *          return next(state, action);\r\n *      }\r\n *\r\n *      function final (state, action) {\r\n *          console.log('here', state, action);\r\n *          return state;\r\n *      }\r\n *\r\n * the last function should not call `next`.\r\n *\r\n * @ignore\r\n * @type {?}\r\n */\r\nconst compose = (/**\r\n * @param {?} funcs\r\n * @return {?}\r\n */\r\n(funcs) => (/**\r\n * @param {...?} args\r\n * @return {?}\r\n */\r\n(...args) => {\r\n    /** @type {?} */\r\n    const curr = (/** @type {?} */ (funcs.shift()));\r\n    return curr(...args, (/**\r\n     * @param {...?} nextArgs\r\n     * @return {?}\r\n     */\r\n    (...nextArgs) => compose(funcs)(...nextArgs)));\r\n}));\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * BehaviorSubject of the entire state.\r\n * @ignore\r\n */\r\nclass StateStream extends BehaviorSubject {\r\n    constructor() {\r\n        super({});\r\n    }\r\n}\nStateStream.ɵfac = function StateStream_Factory(t) { return new (t || StateStream)(); };\nStateStream.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: StateStream, factory: StateStream.ɵfac });\r\n/** @nocollapse */\r\nStateStream.ctorParameters = () => [];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(StateStream, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass PluginManager {\r\n    /**\r\n     * @param {?} _parentManager\r\n     * @param {?} _pluginHandlers\r\n     */\r\n    constructor(_parentManager, _pluginHandlers) {\r\n        this._parentManager = _parentManager;\r\n        this._pluginHandlers = _pluginHandlers;\r\n        this.plugins = [];\r\n        this.registerHandlers();\r\n    }\r\n    /**\r\n     * @private\r\n     * @return {?}\r\n     */\r\n    get rootPlugins() {\r\n        return (this._parentManager && this._parentManager.plugins) || this.plugins;\r\n    }\r\n    /**\r\n     * @private\r\n     * @return {?}\r\n     */\r\n    registerHandlers() {\r\n        /** @type {?} */\r\n        const pluginHandlers = this.getPluginHandlers();\r\n        this.rootPlugins.push(...pluginHandlers);\r\n    }\r\n    /**\r\n     * @private\r\n     * @return {?}\r\n     */\r\n    getPluginHandlers() {\r\n        /** @type {?} */\r\n        const handlers = this._pluginHandlers || [];\r\n        return handlers.map((/**\r\n         * @param {?} plugin\r\n         * @return {?}\r\n         */\r\n        (plugin) => (/** @type {?} */ ((plugin.handle ? plugin.handle.bind(plugin) : plugin)))));\r\n    }\r\n}\nPluginManager.ɵfac = function PluginManager_Factory(t) { return new (t || PluginManager)(ɵngcc0.ɵɵinject(PluginManager, 12), ɵngcc0.ɵɵinject(NGXS_PLUGINS, 8)); };\nPluginManager.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: PluginManager, factory: PluginManager.ɵfac });\r\n/** @nocollapse */\r\nPluginManager.ctorParameters = () => [\r\n    { type: PluginManager, decorators: [{ type: Optional }, { type: SkipSelf }] },\r\n    { type: Array, decorators: [{ type: Inject, args: [NGXS_PLUGINS,] }, { type: Optional }] }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PluginManager, [{\n        type: Injectable\n    }], function () { return [{ type: PluginManager, decorators: [{\n                type: Optional\n            }, {\n                type: SkipSelf\n            }] }, { type: Array, decorators: [{\n                type: Inject,\n                args: [NGXS_PLUGINS]\n            }, {\n                type: Optional\n            }] }]; }, null); })();\r\nif (false) {\r\n    /** @type {?} */\r\n    PluginManager.prototype.plugins;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    PluginManager.prototype._parentManager;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    PluginManager.prototype._pluginHandlers;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Internal Action result stream that is emitted when an action is completed.\r\n * This is used as a method of returning the action result to the dispatcher\r\n * for the observable returned by the dispatch(...) call.\r\n * The dispatcher then asynchronously pushes the result from this stream onto the main action stream as a result.\r\n */\r\nclass InternalDispatchedActionResults extends Subject {\r\n}\nInternalDispatchedActionResults.ɵfac = function InternalDispatchedActionResults_Factory(t) { return ɵInternalDispatchedActionResults_BaseFactory(t || InternalDispatchedActionResults); };\nInternalDispatchedActionResults.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: InternalDispatchedActionResults, factory: InternalDispatchedActionResults.ɵfac });\nconst ɵInternalDispatchedActionResults_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(InternalDispatchedActionResults);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(InternalDispatchedActionResults, [{\n        type: Injectable\n    }], null, null); })();\r\nclass InternalDispatcher {\r\n    /**\r\n     * @param {?} _errorHandler\r\n     * @param {?} _actions\r\n     * @param {?} _actionResults\r\n     * @param {?} _pluginManager\r\n     * @param {?} _stateStream\r\n     * @param {?} _ngxsExecutionStrategy\r\n     */\r\n    constructor(_errorHandler, _actions, _actionResults, _pluginManager, _stateStream, _ngxsExecutionStrategy) {\r\n        this._errorHandler = _errorHandler;\r\n        this._actions = _actions;\r\n        this._actionResults = _actionResults;\r\n        this._pluginManager = _pluginManager;\r\n        this._stateStream = _stateStream;\r\n        this._ngxsExecutionStrategy = _ngxsExecutionStrategy;\r\n    }\r\n    /**\r\n     * Dispatches event(s).\r\n     * @param {?} actionOrActions\r\n     * @return {?}\r\n     */\r\n    dispatch(actionOrActions) {\r\n        /** @type {?} */\r\n        const result = this._ngxsExecutionStrategy.enter((/**\r\n         * @return {?}\r\n         */\r\n        () => this.dispatchByEvents(actionOrActions)));\r\n        result.subscribe({\r\n            error: (/**\r\n             * @param {?} error\r\n             * @return {?}\r\n             */\r\n            error => this._ngxsExecutionStrategy.leave((/**\r\n             * @return {?}\r\n             */\r\n            () => {\r\n                try {\r\n                    this._errorHandler.handleError(error);\r\n                }\r\n                catch (_a) { }\r\n            })))\r\n        });\r\n        return result.pipe(leaveNgxs(this._ngxsExecutionStrategy));\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} actionOrActions\r\n     * @return {?}\r\n     */\r\n    dispatchByEvents(actionOrActions) {\r\n        if (Array.isArray(actionOrActions)) {\r\n            if (actionOrActions.length === 0)\r\n                return of(this._stateStream.getValue());\r\n            return forkJoin(actionOrActions.map((/**\r\n             * @param {?} action\r\n             * @return {?}\r\n             */\r\n            action => this.dispatchSingle(action))));\r\n        }\r\n        else {\r\n            return this.dispatchSingle(actionOrActions);\r\n        }\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} action\r\n     * @return {?}\r\n     */\r\n    dispatchSingle(action) {\r\n        /** @type {?} */\r\n        const prevState = this._stateStream.getValue();\r\n        /** @type {?} */\r\n        const plugins = this._pluginManager.plugins;\r\n        return ((/** @type {?} */ (compose([\r\n            ...plugins,\r\n            (/**\r\n             * @param {?} nextState\r\n             * @param {?} nextAction\r\n             * @return {?}\r\n             */\r\n            (nextState, nextAction) => {\r\n                if (nextState !== prevState) {\r\n                    this._stateStream.next(nextState);\r\n                }\r\n                /** @type {?} */\r\n                const actionResult$ = this.getActionResultStream(nextAction);\r\n                actionResult$.subscribe((/**\r\n                 * @param {?} ctx\r\n                 * @return {?}\r\n                 */\r\n                ctx => this._actions.next(ctx)));\r\n                this._actions.next({ action: nextAction, status: \"DISPATCHED\" /* Dispatched */ });\r\n                return this.createDispatchObservable(actionResult$);\r\n            })\r\n        ])(prevState, action)))).pipe(shareReplay());\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} action\r\n     * @return {?}\r\n     */\r\n    getActionResultStream(action) {\r\n        return this._actionResults.pipe(filter((/**\r\n         * @param {?} ctx\r\n         * @return {?}\r\n         */\r\n        (ctx) => ctx.action === action && ctx.status !== \"DISPATCHED\" /* Dispatched */)), take(1), shareReplay());\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} actionResult$\r\n     * @return {?}\r\n     */\r\n    createDispatchObservable(actionResult$) {\r\n        return actionResult$\r\n            .pipe(exhaustMap((/**\r\n         * @param {?} ctx\r\n         * @return {?}\r\n         */\r\n        (ctx) => {\r\n            switch (ctx.status) {\r\n                case \"SUCCESSFUL\" /* Successful */:\r\n                    return of(this._stateStream.getValue());\r\n                case \"ERRORED\" /* Errored */:\r\n                    return throwError(ctx.error);\r\n                default:\r\n                    return EMPTY;\r\n            }\r\n        })))\r\n            .pipe(shareReplay());\r\n    }\r\n}\nInternalDispatcher.ɵfac = function InternalDispatcher_Factory(t) { return new (t || InternalDispatcher)(ɵngcc0.ɵɵinject(ɵngcc0.ErrorHandler), ɵngcc0.ɵɵinject(InternalActions), ɵngcc0.ɵɵinject(InternalDispatchedActionResults), ɵngcc0.ɵɵinject(PluginManager), ɵngcc0.ɵɵinject(StateStream), ɵngcc0.ɵɵinject(InternalNgxsExecutionStrategy)); };\nInternalDispatcher.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: InternalDispatcher, factory: InternalDispatcher.ɵfac });\r\n/** @nocollapse */\r\nInternalDispatcher.ctorParameters = () => [\r\n    { type: ErrorHandler },\r\n    { type: InternalActions },\r\n    { type: InternalDispatchedActionResults },\r\n    { type: PluginManager },\r\n    { type: StateStream },\r\n    { type: InternalNgxsExecutionStrategy }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(InternalDispatcher, [{\n        type: Injectable\n    }], function () { return [{ type: ɵngcc0.ErrorHandler }, { type: InternalActions }, { type: InternalDispatchedActionResults }, { type: PluginManager }, { type: StateStream }, { type: InternalNgxsExecutionStrategy }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalDispatcher.prototype._errorHandler;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalDispatcher.prototype._actions;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalDispatcher.prototype._actionResults;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalDispatcher.prototype._pluginManager;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalDispatcher.prototype._stateStream;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalDispatcher.prototype._ngxsExecutionStrategy;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Object freeze code\r\n * https://github.com/jsdf/deep-freeze\r\n * @type {?}\r\n */\r\nconst deepFreeze = (/**\r\n * @param {?} o\r\n * @return {?}\r\n */\r\n(o) => {\r\n    Object.freeze(o);\r\n    /** @type {?} */\r\n    const oIsFunction = typeof o === 'function';\r\n    /** @type {?} */\r\n    const hasOwnProp = Object.prototype.hasOwnProperty;\r\n    Object.getOwnPropertyNames(o).forEach((/**\r\n     * @param {?} prop\r\n     * @return {?}\r\n     */\r\n    function (prop) {\r\n        if (hasOwnProp.call(o, prop) &&\r\n            (oIsFunction ? prop !== 'caller' && prop !== 'callee' && prop !== 'arguments' : true) &&\r\n            o[prop] !== null &&\r\n            (typeof o[prop] === 'object' || typeof o[prop] === 'function') &&\r\n            !Object.isFrozen(o[prop])) {\r\n            deepFreeze(o[prop]);\r\n        }\r\n    }));\r\n    return o;\r\n});\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass HostEnvironment {\r\n    /**\r\n     * @param {?} isDevMode\r\n     * @param {?} isTestMode\r\n     */\r\n    constructor(isDevMode, isTestMode) {\r\n        this.isDevMode = isDevMode;\r\n        this.isTestMode = isTestMode;\r\n    }\r\n}\nHostEnvironment.ɵfac = function HostEnvironment_Factory(t) { return new (t || HostEnvironment)(ɵngcc0.ɵɵinject(NG_DEV_MODE), ɵngcc0.ɵɵinject(NG_TEST_MODE)); };\nHostEnvironment.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HostEnvironment, factory: HostEnvironment.ɵfac });\r\n/** @nocollapse */\r\nHostEnvironment.ctorParameters = () => [\r\n    { type: undefined, decorators: [{ type: Inject, args: [NG_DEV_MODE,] }] },\r\n    { type: undefined, decorators: [{ type: Inject, args: [NG_TEST_MODE,] }] }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HostEnvironment, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [NG_DEV_MODE]\n            }] }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [NG_TEST_MODE]\n            }] }]; }, null); })();\r\nif (false) {\r\n    /** @type {?} */\r\n    HostEnvironment.prototype.isDevMode;\r\n    /** @type {?} */\r\n    HostEnvironment.prototype.isTestMode;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass ConfigValidator {\r\n    /**\r\n     * @param {?} _host\r\n     * @param {?} _config\r\n     */\r\n    constructor(_host, _config) {\r\n        this._host = _host;\r\n        this._config = _config;\r\n    }\r\n    /**\r\n     * @private\r\n     * @return {?}\r\n     */\r\n    get isIncorrectProduction() {\r\n        return !this._host.isDevMode() && this._config.developmentMode;\r\n    }\r\n    /**\r\n     * @private\r\n     * @return {?}\r\n     */\r\n    get isIncorrectDevelopment() {\r\n        return this._host.isDevMode() && !this._config.developmentMode;\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    verifyDevMode() {\r\n        if (this._host.isTestMode()) {\r\n            return;\r\n        }\r\n        if (this.isIncorrectProduction) {\r\n            console.warn(CONFIG_MESSAGES[VALIDATION_CODE.INCORRECT_PRODUCTION]());\r\n        }\r\n        else if (this.isIncorrectDevelopment) {\r\n            console.warn(CONFIG_MESSAGES[VALIDATION_CODE.INCORRECT_DEVELOPMENT]());\r\n        }\r\n    }\r\n}\nConfigValidator.ɵfac = function ConfigValidator_Factory(t) { return new (t || ConfigValidator)(ɵngcc0.ɵɵinject(HostEnvironment), ɵngcc0.ɵɵinject(NgxsConfig)); };\nConfigValidator.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: ConfigValidator, factory: ConfigValidator.ɵfac });\r\n/** @nocollapse */\r\nConfigValidator.ctorParameters = () => [\r\n    { type: HostEnvironment },\r\n    { type: NgxsConfig }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ConfigValidator, [{\n        type: Injectable\n    }], function () { return [{ type: HostEnvironment }, { type: NgxsConfig }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    ConfigValidator.prototype._host;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    ConfigValidator.prototype._config;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * State Context factory class\r\n * @ignore\r\n */\r\nclass InternalStateOperations {\r\n    /**\r\n     * @param {?} _stateStream\r\n     * @param {?} _dispatcher\r\n     * @param {?} _config\r\n     * @param {?} configValidator\r\n     */\r\n    constructor(_stateStream, _dispatcher, _config, configValidator) {\r\n        this._stateStream = _stateStream;\r\n        this._dispatcher = _dispatcher;\r\n        this._config = _config;\r\n        configValidator.verifyDevMode();\r\n    }\r\n    /**\r\n     * Returns the root state operators.\r\n     * @return {?}\r\n     */\r\n    getRootStateOperations() {\r\n        /** @type {?} */\r\n        const rootStateOperations = {\r\n            getState: (/**\r\n             * @return {?}\r\n             */\r\n            () => this._stateStream.getValue()),\r\n            setState: (/**\r\n             * @param {?} newState\r\n             * @return {?}\r\n             */\r\n            (newState) => this._stateStream.next(newState)),\r\n            dispatch: (/**\r\n             * @param {?} actions\r\n             * @return {?}\r\n             */\r\n            (actions) => this._dispatcher.dispatch(actions))\r\n        };\r\n        if (this._config.developmentMode) {\r\n            return this.ensureStateAndActionsAreImmutable(rootStateOperations);\r\n        }\r\n        return rootStateOperations;\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} root\r\n     * @return {?}\r\n     */\r\n    ensureStateAndActionsAreImmutable(root) {\r\n        return {\r\n            getState: (/**\r\n             * @return {?}\r\n             */\r\n            () => root.getState()),\r\n            setState: (/**\r\n             * @param {?} value\r\n             * @return {?}\r\n             */\r\n            value => {\r\n                /** @type {?} */\r\n                const frozenValue = deepFreeze(value);\r\n                return root.setState(frozenValue);\r\n            }),\r\n            dispatch: (/**\r\n             * @param {?} actions\r\n             * @return {?}\r\n             */\r\n            actions => {\r\n                return root.dispatch(actions);\r\n            })\r\n        };\r\n    }\r\n    /**\r\n     * @param {?} results\r\n     * @return {?}\r\n     */\r\n    setStateToTheCurrentWithNew(results) {\r\n        /** @type {?} */\r\n        const stateOperations = this.getRootStateOperations();\r\n        // Get our current stream\r\n        /** @type {?} */\r\n        const currentState = stateOperations.getState();\r\n        // Set the state to the current + new\r\n        stateOperations.setState(Object.assign({}, currentState, results.defaults));\r\n    }\r\n}\nInternalStateOperations.ɵfac = function InternalStateOperations_Factory(t) { return new (t || InternalStateOperations)(ɵngcc0.ɵɵinject(StateStream), ɵngcc0.ɵɵinject(InternalDispatcher), ɵngcc0.ɵɵinject(NgxsConfig), ɵngcc0.ɵɵinject(ConfigValidator)); };\nInternalStateOperations.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: InternalStateOperations, factory: InternalStateOperations.ɵfac });\r\n/** @nocollapse */\r\nInternalStateOperations.ctorParameters = () => [\r\n    { type: StateStream },\r\n    { type: InternalDispatcher },\r\n    { type: NgxsConfig },\r\n    { type: ConfigValidator }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(InternalStateOperations, [{\n        type: Injectable\n    }], function () { return [{ type: StateStream }, { type: InternalDispatcher }, { type: NgxsConfig }, { type: ConfigValidator }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalStateOperations.prototype._stateStream;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalStateOperations.prototype._dispatcher;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    InternalStateOperations.prototype._config;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @template T\r\n * @param {?} val\r\n * @return {?}\r\n */\r\nfunction simplePatch(val) {\r\n    return (/**\r\n     * @param {?} existingState\r\n     * @return {?}\r\n     */\r\n    (existingState) => {\r\n        if (Array.isArray(val)) {\r\n            throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.PATCHING_ARRAY]());\r\n        }\r\n        else if (typeof val !== 'object') {\r\n            throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.PATCHING_PRIMITIVE]());\r\n        }\r\n        /** @type {?} */\r\n        const newState = Object.assign({}, ((/** @type {?} */ (existingState))));\r\n        for (const key in val) {\r\n            // deep clone for patch compatibility\r\n            // noinspection JSUnfilteredForInLoop (IDE)\r\n            newState[key] = ((/** @type {?} */ (val)))[key];\r\n        }\r\n        return (/** @type {?} */ (newState));\r\n    });\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * State Context factory class\r\n * @ignore\r\n */\r\nclass StateContextFactory {\r\n    /**\r\n     * @param {?} _internalStateOperations\r\n     */\r\n    constructor(_internalStateOperations) {\r\n        this._internalStateOperations = _internalStateOperations;\r\n    }\r\n    /**\r\n     * Create the state context\r\n     * @template T\r\n     * @param {?} mappedStore\r\n     * @return {?}\r\n     */\r\n    createStateContext(mappedStore) {\r\n        /** @type {?} */\r\n        const root = this._internalStateOperations.getRootStateOperations();\r\n        /**\r\n         * @param {?} currentAppState\r\n         * @return {?}\r\n         */\r\n        function getState(currentAppState) {\r\n            return getValue(currentAppState, mappedStore.path);\r\n        }\r\n        /**\r\n         * @param {?} currentAppState\r\n         * @param {?} newValue\r\n         * @return {?}\r\n         */\r\n        function setStateValue(currentAppState, newValue) {\r\n            /** @type {?} */\r\n            const newAppState = setValue(currentAppState, mappedStore.path, newValue);\r\n            /** @type {?} */\r\n            const instance = mappedStore.instance;\r\n            if (instance.ngxsOnChanges) {\r\n                /** @type {?} */\r\n                const change = getStateDiffChanges(mappedStore, {\r\n                    currentAppState,\r\n                    newAppState\r\n                });\r\n                instance.ngxsOnChanges(change);\r\n            }\r\n            root.setState(newAppState);\r\n            return newAppState;\r\n            // In doing this refactoring I noticed that there is a 'bug' where the\r\n            // application state is returned instead of this state slice.\r\n            // This has worked this way since the beginning see:\r\n            // https://github.com/ngxs/store/blame/324c667b4b7debd8eb979006c67ca0ae347d88cd/src/state-factory.ts\r\n            // This needs to be fixed, but is a 'breaking' change.\r\n            // I will do this fix in a subsequent PR and we can decide how to handle it.\r\n        }\r\n        /**\r\n         * @param {?} currentAppState\r\n         * @param {?} stateOperator\r\n         * @return {?}\r\n         */\r\n        function setStateFromOperator(currentAppState, stateOperator) {\r\n            /** @type {?} */\r\n            const local = getState(currentAppState);\r\n            /** @type {?} */\r\n            const newValue = stateOperator(local);\r\n            return setStateValue(currentAppState, newValue);\r\n        }\r\n        /**\r\n         * @param {?} value\r\n         * @return {?}\r\n         */\r\n        function isStateOperator(value) {\r\n            return typeof value === 'function';\r\n        }\r\n        return {\r\n            /**\r\n             * @return {?}\r\n             */\r\n            getState() {\r\n                /** @type {?} */\r\n                const currentAppState = root.getState();\r\n                return getState(currentAppState);\r\n            },\r\n            /**\r\n             * @param {?} val\r\n             * @return {?}\r\n             */\r\n            patchState(val) {\r\n                /** @type {?} */\r\n                const currentAppState = root.getState();\r\n                /** @type {?} */\r\n                const patchOperator = simplePatch(val);\r\n                return setStateFromOperator(currentAppState, patchOperator);\r\n            },\r\n            /**\r\n             * @param {?} val\r\n             * @return {?}\r\n             */\r\n            setState(val) {\r\n                /** @type {?} */\r\n                const currentAppState = root.getState();\r\n                return isStateOperator(val)\r\n                    ? setStateFromOperator(currentAppState, val)\r\n                    : setStateValue(currentAppState, val);\r\n            },\r\n            /**\r\n             * @param {?} actions\r\n             * @return {?}\r\n             */\r\n            dispatch(actions) {\r\n                return root.dispatch(actions);\r\n            }\r\n        };\r\n    }\r\n}\nStateContextFactory.ɵfac = function StateContextFactory_Factory(t) { return new (t || StateContextFactory)(ɵngcc0.ɵɵinject(InternalStateOperations)); };\nStateContextFactory.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: StateContextFactory, factory: StateContextFactory.ɵfac });\r\n/** @nocollapse */\r\nStateContextFactory.ctorParameters = () => [\r\n    { type: InternalStateOperations }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(StateContextFactory, [{\n        type: Injectable\n    }], function () { return [{ type: InternalStateOperations }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateContextFactory.prototype._internalStateOperations;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @abstract\r\n */\r\nclass StoreValidators {\r\n    /**\r\n     * @param {?} name\r\n     * @return {?}\r\n     */\r\n    static stateNameErrorMessage(name) {\r\n        return CONFIG_MESSAGES[VALIDATION_CODE.STATE_NAME](name);\r\n    }\r\n    /**\r\n     * @param {?} name\r\n     * @return {?}\r\n     */\r\n    static checkCorrectStateName(name) {\r\n        if (!name) {\r\n            throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.STATE_NAME_PROPERTY]());\r\n        }\r\n        if (!this.stateNameRegex.test(name)) {\r\n            throw new Error(this.stateNameErrorMessage(name));\r\n        }\r\n    }\r\n    /**\r\n     * @param {?} state\r\n     * @param {?} statesByName\r\n     * @return {?}\r\n     */\r\n    static checkStateNameIsUnique(state, statesByName) {\r\n        /** @type {?} */\r\n        const meta = this.getValidStateMeta(state);\r\n        /** @type {?} */\r\n        const stateName = (/** @type {?} */ ((/** @type {?} */ (meta)).name));\r\n        /** @type {?} */\r\n        const existingState = statesByName[stateName];\r\n        if (existingState && existingState !== state) {\r\n            throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.STATE_UNIQUE](stateName, state.name, existingState.name));\r\n        }\r\n        return stateName;\r\n    }\r\n    /**\r\n     * @param {?} state\r\n     * @return {?}\r\n     */\r\n    static getValidStateMeta(state) {\r\n        /** @type {?} */\r\n        const meta = getStoreMetadata(state);\r\n        if (!meta) {\r\n            throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.STATE_DECORATOR]());\r\n        }\r\n        return meta;\r\n    }\r\n}\r\nStoreValidators.stateNameRegex = new RegExp('^[a-zA-Z0-9_]+$');\r\nif (false) {\r\n    /** @type {?} */\r\n    StoreValidators.stateNameRegex;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * State factory class\r\n * @ignore\r\n */\r\nclass StateFactory {\r\n    /**\r\n     * @param {?} _injector\r\n     * @param {?} _config\r\n     * @param {?} _parentFactory\r\n     * @param {?} _actions\r\n     * @param {?} _actionResults\r\n     * @param {?} _stateContextFactory\r\n     * @param {?} _initialState\r\n     */\r\n    constructor(_injector, _config, _parentFactory, _actions, _actionResults, _stateContextFactory, _initialState) {\r\n        this._injector = _injector;\r\n        this._config = _config;\r\n        this._parentFactory = _parentFactory;\r\n        this._actions = _actions;\r\n        this._actionResults = _actionResults;\r\n        this._stateContextFactory = _stateContextFactory;\r\n        this._initialState = _initialState;\r\n        this._connected = false;\r\n        this._states = [];\r\n        this._statesByName = {};\r\n        this._statePaths = {};\r\n        this.getRuntimeSelectorContext = memoize((/**\r\n         * @return {?}\r\n         */\r\n        () => {\r\n            /** @type {?} */\r\n            const stateFactory = this;\r\n            /** @type {?} */\r\n            const context = this._parentFactory\r\n                ? this._parentFactory.getRuntimeSelectorContext()\r\n                : {\r\n                    /**\r\n                     * @param {?} key\r\n                     * @return {?}\r\n                     */\r\n                    getStateGetter(key) {\r\n                        /** @type {?} */\r\n                        const path = stateFactory.statePaths[key];\r\n                        return path ? propGetter(path.split('.'), stateFactory._config) : (/**\r\n                         * @return {?}\r\n                         */\r\n                        () => undefined);\r\n                    },\r\n                    /**\r\n                     * @param {?=} localOptions\r\n                     * @return {?}\r\n                     */\r\n                    getSelectorOptions(localOptions) {\r\n                        /** @type {?} */\r\n                        const globalSelectorOptions = stateFactory._config.selectorOptions;\r\n                        return Object.assign({}, globalSelectorOptions, (localOptions || {}));\r\n                    }\r\n                };\r\n            return context;\r\n        }));\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    get states() {\r\n        return this._parentFactory ? this._parentFactory.states : this._states;\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    get statesByName() {\r\n        return this._parentFactory ? this._parentFactory.statesByName : this._statesByName;\r\n    }\r\n    /**\r\n     * @private\r\n     * @return {?}\r\n     */\r\n    get statePaths() {\r\n        return this._parentFactory ? this._parentFactory.statePaths : this._statePaths;\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} defaults\r\n     * @return {?}\r\n     */\r\n    static cloneDefaults(defaults) {\r\n        /** @type {?} */\r\n        let value = {};\r\n        if (Array.isArray(defaults)) {\r\n            value = defaults.slice();\r\n        }\r\n        else if (isObject(defaults)) {\r\n            value = Object.assign({}, defaults);\r\n        }\r\n        else if (defaults === undefined) {\r\n            value = {};\r\n        }\r\n        else {\r\n            value = defaults;\r\n        }\r\n        return value;\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} stateClasses\r\n     * @return {?}\r\n     */\r\n    static checkStatesAreValid(stateClasses) {\r\n        stateClasses.forEach(StoreValidators.getValidStateMeta);\r\n    }\r\n    /**\r\n     * Add a new state to the global defs.\r\n     * @param {?} stateClasses\r\n     * @return {?}\r\n     */\r\n    add(stateClasses) {\r\n        StateFactory.checkStatesAreValid(stateClasses);\r\n        const { newStates } = this.addToStatesMap(stateClasses);\r\n        if (!newStates.length)\r\n            return [];\r\n        /** @type {?} */\r\n        const stateGraph = buildGraph(newStates);\r\n        /** @type {?} */\r\n        const sortedStates = topologicalSort(stateGraph);\r\n        /** @type {?} */\r\n        const paths = findFullParentPath(stateGraph);\r\n        /** @type {?} */\r\n        const nameGraph = nameToState(newStates);\r\n        /** @type {?} */\r\n        const bootstrappedStores = [];\r\n        for (const name of sortedStates) {\r\n            /** @type {?} */\r\n            const stateClass = nameGraph[name];\r\n            /** @type {?} */\r\n            const path = paths[name];\r\n            /** @type {?} */\r\n            const meta = (/** @type {?} */ (stateClass[META_KEY]));\r\n            this.addRuntimeInfoToMeta(meta, path);\r\n            /** @type {?} */\r\n            const stateMap = {\r\n                name,\r\n                path,\r\n                isInitialised: false,\r\n                actions: meta.actions,\r\n                instance: this._injector.get(stateClass),\r\n                defaults: StateFactory.cloneDefaults(meta.defaults)\r\n            };\r\n            // ensure our store hasn't already been added\r\n            // but don't throw since it could be lazy\r\n            // loaded from different paths\r\n            if (!this.hasBeenMountedAndBootstrapped(name, path)) {\r\n                bootstrappedStores.push(stateMap);\r\n            }\r\n            this.states.push(stateMap);\r\n        }\r\n        return bootstrappedStores;\r\n    }\r\n    /**\r\n     * Add a set of states to the store and return the defaults\r\n     * @param {?} stateClasses\r\n     * @return {?}\r\n     */\r\n    addAndReturnDefaults(stateClasses) {\r\n        /** @type {?} */\r\n        const classes = stateClasses || [];\r\n        /** @type {?} */\r\n        const mappedStores = this.add(classes);\r\n        /** @type {?} */\r\n        const defaults = mappedStores.reduce((/**\r\n         * @param {?} result\r\n         * @param {?} mappedStore\r\n         * @return {?}\r\n         */\r\n        (result, mappedStore) => setValue(result, mappedStore.path, mappedStore.defaults)), {});\r\n        return { defaults, states: mappedStores };\r\n    }\r\n    /**\r\n     * Bind the actions to the handlers\r\n     * @return {?}\r\n     */\r\n    connectActionHandlers() {\r\n        if (this._connected)\r\n            return;\r\n        this._actions\r\n            .pipe(filter((/**\r\n         * @param {?} ctx\r\n         * @return {?}\r\n         */\r\n        (ctx) => ctx.status === \"DISPATCHED\" /* Dispatched */)), mergeMap((/**\r\n         * @param {?} __0\r\n         * @return {?}\r\n         */\r\n        ({ action }) => this.invokeActions(this._actions, (/** @type {?} */ (action))).pipe(map((/**\r\n         * @return {?}\r\n         */\r\n        () => (/** @type {?} */ ({ action, status: \"SUCCESSFUL\" /* Successful */ })))), defaultIfEmpty((/** @type {?} */ ({ action, status: \"CANCELED\" /* Canceled */ }))), catchError((/**\r\n         * @param {?} error\r\n         * @return {?}\r\n         */\r\n        error => of((/** @type {?} */ ({ action, status: \"ERRORED\" /* Errored */, error })))))))))\r\n            .subscribe((/**\r\n         * @param {?} ctx\r\n         * @return {?}\r\n         */\r\n        ctx => this._actionResults.next(ctx)));\r\n        this._connected = true;\r\n    }\r\n    /**\r\n     * Invoke actions on the states.\r\n     * @param {?} actions$\r\n     * @param {?} action\r\n     * @return {?}\r\n     */\r\n    invokeActions(actions$, action) {\r\n        /** @type {?} */\r\n        const results = [];\r\n        for (const metadata of this.states) {\r\n            /** @type {?} */\r\n            const type = (/** @type {?} */ (getActionTypeFromInstance(action)));\r\n            /** @type {?} */\r\n            const actionMetas = metadata.actions[type];\r\n            if (actionMetas) {\r\n                for (const actionMeta of actionMetas) {\r\n                    /** @type {?} */\r\n                    const stateContext = this._stateContextFactory.createStateContext(metadata);\r\n                    try {\r\n                        /** @type {?} */\r\n                        let result = metadata.instance[actionMeta.fn](stateContext, action);\r\n                        if (result instanceof Promise) {\r\n                            result = from(result);\r\n                        }\r\n                        if (result instanceof Observable) {\r\n                            if (actionMeta.options.cancelUncompleted) {\r\n                                // todo: ofActionDispatched should be used with action class\r\n                                result = result.pipe(takeUntil(actions$.pipe(ofActionDispatched((/** @type {?} */ (action))))));\r\n                            }\r\n                        }\r\n                        else {\r\n                            result = of({}).pipe(shareReplay());\r\n                        }\r\n                        results.push(result);\r\n                    }\r\n                    catch (e) {\r\n                        results.push(throwError(e));\r\n                    }\r\n                }\r\n            }\r\n        }\r\n        if (!results.length) {\r\n            results.push(of({}));\r\n        }\r\n        return forkJoin(results);\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} stateClasses\r\n     * @return {?}\r\n     */\r\n    addToStatesMap(stateClasses) {\r\n        /** @type {?} */\r\n        const newStates = [];\r\n        /** @type {?} */\r\n        const statesMap = this.statesByName;\r\n        for (const stateClass of stateClasses) {\r\n            /** @type {?} */\r\n            const stateName = StoreValidators.checkStateNameIsUnique(stateClass, statesMap);\r\n            /** @type {?} */\r\n            const unmountedState = !statesMap[stateName];\r\n            if (unmountedState) {\r\n                newStates.push(stateClass);\r\n                statesMap[stateName] = stateClass;\r\n            }\r\n        }\r\n        return { newStates };\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} meta\r\n     * @param {?} path\r\n     * @return {?}\r\n     */\r\n    addRuntimeInfoToMeta(meta, path) {\r\n        this.statePaths[(/** @type {?} */ (meta.name))] = path;\r\n        // TODO: v4 - we plan to get rid of the path property because it is non-deterministic\r\n        // we can do this when we get rid of the incorrectly exposed getStoreMetadata\r\n        // We will need to come up with an alternative in v4 because this is used by many plugins\r\n        meta.path = path;\r\n    }\r\n    /**\r\n     * \\@description\r\n     * the method checks if the state has already been added to the tree\r\n     * and completed the life cycle\r\n     * @private\r\n     * @param {?} name\r\n     * @param {?} path\r\n     * @return {?}\r\n     */\r\n    hasBeenMountedAndBootstrapped(name, path) {\r\n        /** @type {?} */\r\n        const valueIsBootstrappedInInitialState = getValue(this._initialState, path) !== undefined;\r\n        return this.statesByName[name] && valueIsBootstrappedInInitialState;\r\n    }\r\n}\nStateFactory.ɵfac = function StateFactory_Factory(t) { return new (t || StateFactory)(ɵngcc0.ɵɵinject(ɵngcc0.Injector), ɵngcc0.ɵɵinject(NgxsConfig), ɵngcc0.ɵɵinject(StateFactory, 12), ɵngcc0.ɵɵinject(InternalActions), ɵngcc0.ɵɵinject(InternalDispatchedActionResults), ɵngcc0.ɵɵinject(StateContextFactory), ɵngcc0.ɵɵinject(INITIAL_STATE_TOKEN, 8)); };\nStateFactory.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: StateFactory, factory: StateFactory.ɵfac });\r\n/** @nocollapse */\r\nStateFactory.ctorParameters = () => [\r\n    { type: Injector },\r\n    { type: NgxsConfig },\r\n    { type: StateFactory, decorators: [{ type: Optional }, { type: SkipSelf }] },\r\n    { type: InternalActions },\r\n    { type: InternalDispatchedActionResults },\r\n    { type: StateContextFactory },\r\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [INITIAL_STATE_TOKEN,] }] }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(StateFactory, [{\n        type: Injectable\n    }], function () { return [{ type: ɵngcc0.Injector }, { type: NgxsConfig }, { type: StateFactory, decorators: [{\n                type: Optional\n            }, {\n                type: SkipSelf\n            }] }, { type: InternalActions }, { type: InternalDispatchedActionResults }, { type: StateContextFactory }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [INITIAL_STATE_TOKEN]\n            }] }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._connected;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._states;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._statesByName;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._statePaths;\r\n    /** @type {?} */\r\n    StateFactory.prototype.getRuntimeSelectorContext;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._injector;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._config;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._parentFactory;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._actions;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._actionResults;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._stateContextFactory;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateFactory.prototype._initialState;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass LifecycleStateManager {\r\n    /**\r\n     * @param {?} internalStateOperations\r\n     * @param {?} stateContextFactory\r\n     * @param {?} bootstrapper\r\n     */\r\n    constructor(internalStateOperations, stateContextFactory, bootstrapper) {\r\n        this.internalStateOperations = internalStateOperations;\r\n        this.stateContextFactory = stateContextFactory;\r\n        this.bootstrapper = bootstrapper;\r\n    }\r\n    /**\r\n     * @template T\r\n     * @param {?} action\r\n     * @param {?} results\r\n     * @return {?}\r\n     */\r\n    ngxsBootstrap(action, results) {\r\n        this.internalStateOperations\r\n            .getRootStateOperations()\r\n            .dispatch(action)\r\n            .pipe(filter((/**\r\n         * @return {?}\r\n         */\r\n        () => !!results)), tap((/**\r\n         * @return {?}\r\n         */\r\n        () => this.invokeInit((/** @type {?} */ (results)).states))), mergeMap((/**\r\n         * @return {?}\r\n         */\r\n        () => this.bootstrapper.appBootstrapped$)), filter((/**\r\n         * @param {?} appBootstrapped\r\n         * @return {?}\r\n         */\r\n        appBootstrapped => !!appBootstrapped)))\r\n            .subscribe((/**\r\n         * @return {?}\r\n         */\r\n        () => this.invokeBootstrap((/** @type {?} */ (results)).states)));\r\n    }\r\n    /**\r\n     * Invoke the init function on the states.\r\n     * @param {?} mappedStores\r\n     * @return {?}\r\n     */\r\n    invokeInit(mappedStores) {\r\n        for (const mappedStore of mappedStores) {\r\n            /** @type {?} */\r\n            const instance = mappedStore.instance;\r\n            if (instance.ngxsOnChanges) {\r\n                /** @type {?} */\r\n                const currentAppState = {};\r\n                /** @type {?} */\r\n                const newAppState = this.internalStateOperations\r\n                    .getRootStateOperations()\r\n                    .getState();\r\n                /** @type {?} */\r\n                const firstDiffChange = getStateDiffChanges(mappedStore, {\r\n                    currentAppState,\r\n                    newAppState\r\n                });\r\n                instance.ngxsOnChanges(firstDiffChange);\r\n            }\r\n            if (instance.ngxsOnInit) {\r\n                instance.ngxsOnInit(this.getStateContext(mappedStore));\r\n            }\r\n            mappedStore.isInitialised = true;\r\n        }\r\n    }\r\n    /**\r\n     * Invoke the bootstrap function on the states.\r\n     * @param {?} mappedStores\r\n     * @return {?}\r\n     */\r\n    invokeBootstrap(mappedStores) {\r\n        for (const mappedStore of mappedStores) {\r\n            /** @type {?} */\r\n            const instance = mappedStore.instance;\r\n            if (instance.ngxsAfterBootstrap) {\r\n                instance.ngxsAfterBootstrap(this.getStateContext(mappedStore));\r\n            }\r\n        }\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} mappedStore\r\n     * @return {?}\r\n     */\r\n    getStateContext(mappedStore) {\r\n        return this.stateContextFactory.createStateContext(mappedStore);\r\n    }\r\n}\nLifecycleStateManager.ɵfac = function LifecycleStateManager_Factory(t) { return new (t || LifecycleStateManager)(ɵngcc0.ɵɵinject(InternalStateOperations), ɵngcc0.ɵɵinject(StateContextFactory), ɵngcc0.ɵɵinject(ɵngcc1.NgxsBootstrapper)); };\nLifecycleStateManager.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: LifecycleStateManager, factory: LifecycleStateManager.ɵfac });\r\n/** @nocollapse */\r\nLifecycleStateManager.ctorParameters = () => [\r\n    { type: InternalStateOperations },\r\n    { type: StateContextFactory },\r\n    { type: NgxsBootstrapper }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(LifecycleStateManager, [{\n        type: Injectable\n    }], function () { return [{ type: InternalStateOperations }, { type: StateContextFactory }, { type: ɵngcc1.NgxsBootstrapper }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    LifecycleStateManager.prototype.internalStateOperations;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    LifecycleStateManager.prototype.stateContextFactory;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    LifecycleStateManager.prototype.bootstrapper;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/** @type {?} */\r\nconst SELECTOR_OPTIONS_META_KEY = 'NGXS_SELECTOR_OPTIONS_META';\r\n/** @type {?} */\r\nconst selectorOptionsMetaAccessor = {\r\n    getOptions: (/**\r\n     * @param {?} target\r\n     * @return {?}\r\n     */\r\n    (target) => {\r\n        return (target && ((/** @type {?} */ (target)))[SELECTOR_OPTIONS_META_KEY]) || {};\r\n    }),\r\n    defineOptions: (/**\r\n     * @param {?} target\r\n     * @param {?} options\r\n     * @return {?}\r\n     */\r\n    (target, options) => {\r\n        if (!target)\r\n            return;\r\n        ((/** @type {?} */ (target)))[SELECTOR_OPTIONS_META_KEY] = options;\r\n    })\r\n};\r\n/**\r\n * @record\r\n */\r\nfunction CreationMetadata() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    CreationMetadata.prototype.containerClass;\r\n    /** @type {?} */\r\n    CreationMetadata.prototype.selectorName;\r\n    /** @type {?|undefined} */\r\n    CreationMetadata.prototype.getSelectorOptions;\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction RuntimeSelectorInfo() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    RuntimeSelectorInfo.prototype.selectorOptions;\r\n    /** @type {?} */\r\n    RuntimeSelectorInfo.prototype.argumentSelectorFunctions;\r\n}\r\n/**\r\n * Function for creating a selector\r\n * @template T\r\n * @param {?} selectors The selectors to use to create the arguments of this function\r\n * @param {?} originalFn The original function being made into a selector\r\n * @param {?=} creationMetadata\r\n * @return {?}\r\n */\r\nfunction createSelector(selectors, originalFn, creationMetadata) {\r\n    /** @type {?} */\r\n    const containerClass = creationMetadata && creationMetadata.containerClass;\r\n    /** @type {?} */\r\n    const wrappedFn = (/** @type {?} */ ((/**\r\n     * @param {...?} args\r\n     * @return {?}\r\n     */\r\n    function wrappedSelectorFn(...args) {\r\n        /** @type {?} */\r\n        const returnValue = originalFn.apply(containerClass, args);\r\n        if (returnValue instanceof Function) {\r\n            /** @type {?} */\r\n            const innerMemoizedFn = memoize.apply(null, [returnValue]);\r\n            return innerMemoizedFn;\r\n        }\r\n        return returnValue;\r\n    })));\r\n    /** @type {?} */\r\n    const memoizedFn = memoize(wrappedFn);\r\n    Object.setPrototypeOf(memoizedFn, originalFn);\r\n    /** @type {?} */\r\n    const selectorMetaData = setupSelectorMetadata(originalFn, creationMetadata);\r\n    /** @type {?} */\r\n    const makeRootSelector = (/**\r\n     * @param {?} context\r\n     * @return {?}\r\n     */\r\n    (context) => {\r\n        const { argumentSelectorFunctions, selectorOptions } = getRuntimeSelectorInfo(context, selectorMetaData, selectors);\r\n        return (/**\r\n         * @param {?} rootState\r\n         * @return {?}\r\n         */\r\n        function selectFromRoot(rootState) {\r\n            // Determine arguments from the app state using the selectors\r\n            /** @type {?} */\r\n            const results = argumentSelectorFunctions.map((/**\r\n             * @param {?} argFn\r\n             * @return {?}\r\n             */\r\n            argFn => argFn(rootState)));\r\n            // if the lambda tries to access a something on the\r\n            // state that doesn't exist, it will throw a TypeError.\r\n            // since this is quite usual behaviour, we simply return undefined if so.\r\n            try {\r\n                return memoizedFn(...results);\r\n            }\r\n            catch (ex) {\r\n                if (ex instanceof TypeError && selectorOptions.suppressErrors) {\r\n                    return undefined;\r\n                }\r\n                throw ex;\r\n            }\r\n        });\r\n    });\r\n    selectorMetaData.makeRootSelector = makeRootSelector;\r\n    return memoizedFn;\r\n}\r\n/**\r\n * @template T\r\n * @param {?} originalFn\r\n * @param {?} creationMetadata\r\n * @return {?}\r\n */\r\nfunction setupSelectorMetadata(originalFn, creationMetadata) {\r\n    /** @type {?} */\r\n    const selectorMetaData = ensureSelectorMetadata(originalFn);\r\n    selectorMetaData.originalFn = originalFn;\r\n    /** @type {?} */\r\n    let getExplicitSelectorOptions = (/**\r\n     * @return {?}\r\n     */\r\n    () => ({}));\r\n    if (creationMetadata) {\r\n        selectorMetaData.containerClass = creationMetadata.containerClass;\r\n        selectorMetaData.selectorName = creationMetadata.selectorName;\r\n        getExplicitSelectorOptions =\r\n            creationMetadata.getSelectorOptions || getExplicitSelectorOptions;\r\n    }\r\n    /** @type {?} */\r\n    const selectorMetaDataClone = Object.assign({}, selectorMetaData);\r\n    selectorMetaData.getSelectorOptions = (/**\r\n     * @return {?}\r\n     */\r\n    () => getLocalSelectorOptions(selectorMetaDataClone, getExplicitSelectorOptions()));\r\n    return selectorMetaData;\r\n}\r\n/**\r\n * @param {?} context\r\n * @param {?} selectorMetaData\r\n * @param {?=} selectors\r\n * @return {?}\r\n */\r\nfunction getRuntimeSelectorInfo(context, selectorMetaData, selectors = []) {\r\n    /** @type {?} */\r\n    const localSelectorOptions = selectorMetaData.getSelectorOptions();\r\n    /** @type {?} */\r\n    const selectorOptions = context.getSelectorOptions(localSelectorOptions);\r\n    /** @type {?} */\r\n    const selectorsToApply = getSelectorsToApply(selectors, selectorOptions, selectorMetaData.containerClass);\r\n    /** @type {?} */\r\n    const argumentSelectorFunctions = selectorsToApply.map((/**\r\n     * @param {?} selector\r\n     * @return {?}\r\n     */\r\n    selector => {\r\n        /** @type {?} */\r\n        const factory = getRootSelectorFactory(selector);\r\n        return factory(context);\r\n    }));\r\n    return {\r\n        selectorOptions,\r\n        argumentSelectorFunctions\r\n    };\r\n}\r\n/**\r\n * @param {?} selectorMetaData\r\n * @param {?} explicitOptions\r\n * @return {?}\r\n */\r\nfunction getLocalSelectorOptions(selectorMetaData, explicitOptions) {\r\n    return Object.assign({}, (selectorOptionsMetaAccessor.getOptions(selectorMetaData.containerClass) || {}), (selectorOptionsMetaAccessor.getOptions(selectorMetaData.originalFn) || {}), (selectorMetaData.getSelectorOptions() || {}), explicitOptions);\r\n}\r\n/**\r\n * @param {?=} selectors\r\n * @param {?=} selectorOptions\r\n * @param {?=} containerClass\r\n * @return {?}\r\n */\r\nfunction getSelectorsToApply(selectors = [], selectorOptions, containerClass) {\r\n    /** @type {?} */\r\n    const selectorsToApply = [];\r\n    /** @type {?} */\r\n    const canInjectContainerState = selectors.length === 0 || selectorOptions.injectContainerState;\r\n    if (containerClass && canInjectContainerState) {\r\n        // If we are on a state class, add it as the first selector parameter\r\n        /** @type {?} */\r\n        const metadata = getStoreMetadata(containerClass);\r\n        if (metadata) {\r\n            selectorsToApply.push(containerClass);\r\n        }\r\n    }\r\n    if (selectors) {\r\n        selectorsToApply.push(...selectors);\r\n    }\r\n    return selectorsToApply;\r\n}\r\n/**\r\n * This function gets the factory function to create the selector to get the selected slice from the app state\r\n * @ignore\r\n * @param {?} selector\r\n * @return {?}\r\n */\r\nfunction getRootSelectorFactory(selector) {\r\n    /** @type {?} */\r\n    const metadata = getSelectorMetadata(selector) || getStoreMetadata(selector);\r\n    return (metadata && metadata.makeRootSelector) || ((/**\r\n     * @return {?}\r\n     */\r\n    () => selector));\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass Store {\r\n    /**\r\n     * @param {?} _stateStream\r\n     * @param {?} _internalStateOperations\r\n     * @param {?} _config\r\n     * @param {?} _internalExecutionStrategy\r\n     * @param {?} _stateFactory\r\n     * @param {?} initialStateValue\r\n     */\r\n    constructor(_stateStream, _internalStateOperations, _config, _internalExecutionStrategy, _stateFactory, initialStateValue) {\r\n        this._stateStream = _stateStream;\r\n        this._internalStateOperations = _internalStateOperations;\r\n        this._config = _config;\r\n        this._internalExecutionStrategy = _internalExecutionStrategy;\r\n        this._stateFactory = _stateFactory;\r\n        this.initStateStream(initialStateValue);\r\n    }\r\n    /**\r\n     * Dispatches event(s).\r\n     * @param {?} event\r\n     * @return {?}\r\n     */\r\n    dispatch(event) {\r\n        return this._internalStateOperations.getRootStateOperations().dispatch(event);\r\n    }\r\n    /**\r\n     * @param {?} selector\r\n     * @return {?}\r\n     */\r\n    select(selector) {\r\n        /** @type {?} */\r\n        const selectorFn = this.getStoreBoundSelectorFn(selector);\r\n        return this._stateStream.pipe(map(selectorFn), catchError((/**\r\n         * @param {?} err\r\n         * @return {?}\r\n         */\r\n        (err) => {\r\n            // if error is TypeError we swallow it to prevent usual errors with property access\r\n            const { suppressErrors } = this._config.selectorOptions;\r\n            if (err instanceof TypeError && suppressErrors) {\r\n                return of(undefined);\r\n            }\r\n            // rethrow other errors\r\n            return throwError(err);\r\n        })), distinctUntilChanged(), leaveNgxs(this._internalExecutionStrategy));\r\n    }\r\n    /**\r\n     * @param {?} selector\r\n     * @return {?}\r\n     */\r\n    selectOnce(selector) {\r\n        return this.select(selector).pipe(take(1));\r\n    }\r\n    /**\r\n     * @param {?} selector\r\n     * @return {?}\r\n     */\r\n    selectSnapshot(selector) {\r\n        /** @type {?} */\r\n        const selectorFn = this.getStoreBoundSelectorFn(selector);\r\n        return selectorFn(this._stateStream.getValue());\r\n    }\r\n    /**\r\n     * Allow the user to subscribe to the root of the state\r\n     * @param {?=} fn\r\n     * @return {?}\r\n     */\r\n    subscribe(fn) {\r\n        return this._stateStream.pipe(leaveNgxs(this._internalExecutionStrategy)).subscribe(fn);\r\n    }\r\n    /**\r\n     * Return the raw value of the state.\r\n     * @return {?}\r\n     */\r\n    snapshot() {\r\n        return this._internalStateOperations.getRootStateOperations().getState();\r\n    }\r\n    /**\r\n     * Reset the state to a specific point in time. This method is useful\r\n     * for plugin's who need to modify the state directly or unit testing.\r\n     * @param {?} state\r\n     * @return {?}\r\n     */\r\n    reset(state) {\r\n        return this._internalStateOperations.getRootStateOperations().setState(state);\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} selector\r\n     * @return {?}\r\n     */\r\n    getStoreBoundSelectorFn(selector) {\r\n        /** @type {?} */\r\n        const makeSelectorFn = getRootSelectorFactory(selector);\r\n        /** @type {?} */\r\n        const runtimeContext = this._stateFactory.getRuntimeSelectorContext();\r\n        return makeSelectorFn(runtimeContext);\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} initialStateValue\r\n     * @return {?}\r\n     */\r\n    initStateStream(initialStateValue) {\r\n        /** @type {?} */\r\n        const value = this._stateStream.value;\r\n        /** @type {?} */\r\n        const storeIsEmpty = !value || Object.keys(value).length === 0;\r\n        if (storeIsEmpty) {\r\n            /** @type {?} */\r\n            const defaultStateNotEmpty = Object.keys(this._config.defaultsState).length > 0;\r\n            /** @type {?} */\r\n            const storeValues = defaultStateNotEmpty\r\n                ? Object.assign({}, this._config.defaultsState, initialStateValue) : initialStateValue;\r\n            this._stateStream.next(storeValues);\r\n        }\r\n    }\r\n}\nStore.ɵfac = function Store_Factory(t) { return new (t || Store)(ɵngcc0.ɵɵinject(StateStream), ɵngcc0.ɵɵinject(InternalStateOperations), ɵngcc0.ɵɵinject(NgxsConfig), ɵngcc0.ɵɵinject(InternalNgxsExecutionStrategy), ɵngcc0.ɵɵinject(StateFactory), ɵngcc0.ɵɵinject(INITIAL_STATE_TOKEN, 8)); };\nStore.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: Store, factory: Store.ɵfac });\r\n/** @nocollapse */\r\nStore.ctorParameters = () => [\r\n    { type: StateStream },\r\n    { type: InternalStateOperations },\r\n    { type: NgxsConfig },\r\n    { type: InternalNgxsExecutionStrategy },\r\n    { type: StateFactory },\r\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [INITIAL_STATE_TOKEN,] }] }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Store, [{\n        type: Injectable\n    }], function () { return [{ type: StateStream }, { type: InternalStateOperations }, { type: NgxsConfig }, { type: InternalNgxsExecutionStrategy }, { type: StateFactory }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [INITIAL_STATE_TOKEN]\n            }] }]; }, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    Store.prototype._stateStream;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    Store.prototype._internalStateOperations;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    Store.prototype._config;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    Store.prototype._internalExecutionStrategy;\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    Store.prototype._stateFactory;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Allows the select decorator to get access to the DI store.\r\n * \\@internal only use in \\@Select decorator\r\n * @ignore\r\n */\r\nclass SelectFactory {\r\n    /**\r\n     * @param {?} store\r\n     * @param {?} config\r\n     */\r\n    constructor(store, config) {\r\n        SelectFactory.store = store;\r\n        SelectFactory.config = config;\r\n    }\r\n}\nSelectFactory.ɵfac = function SelectFactory_Factory(t) { return new (t || SelectFactory)(ɵngcc0.ɵɵinject(Store), ɵngcc0.ɵɵinject(NgxsConfig)); };\nSelectFactory.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: SelectFactory, factory: SelectFactory.ɵfac });\r\nSelectFactory.store = null;\r\nSelectFactory.config = null;\r\n/** @nocollapse */\r\nSelectFactory.ctorParameters = () => [\r\n    { type: Store },\r\n    { type: NgxsConfig }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(SelectFactory, [{\n        type: Injectable\n    }], function () { return [{ type: Store }, { type: NgxsConfig }]; }, null); })();\r\nif (false) {\r\n    /** @type {?} */\r\n    SelectFactory.store;\r\n    /** @type {?} */\r\n    SelectFactory.config;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Init action\r\n */\r\nclass InitState {\r\n    /**\r\n     * @return {?}\r\n     */\r\n    static get type() {\r\n        // NOTE: Not necessary to declare the type in this way in your code. See https://github.com/ngxs/store/pull/644#issuecomment-436003138\r\n        return '@@INIT';\r\n    }\r\n}\r\n/**\r\n * Update action\r\n */\r\nclass UpdateState {\r\n    /**\r\n     * @param {?=} addedStates\r\n     */\r\n    constructor(addedStates) {\r\n        this.addedStates = addedStates;\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    static get type() {\r\n        // NOTE: Not necessary to declare the type in this way in your code. See https://github.com/ngxs/store/pull/644#issuecomment-436003138\r\n        return '@@UPDATE_STATE';\r\n    }\r\n}\r\nif (false) {\r\n    /** @type {?} */\r\n    UpdateState.prototype.addedStates;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Keep it as a single `const` variable since this `ReplaySubject`\r\n * will be private and accessible only within this file.\r\n * @type {?}\r\n */\r\nconst _ivyEnabledInDevMode$ = new ReplaySubject(1);\r\n/**\r\n * Ivy exposes helper functions to the global `window.ng` object.\r\n * Those functions are `getComponent, getContext,\r\n * getListeners, getViewComponent, getHostElement, getInjector,\r\n * getRootComponents, getDirectives, getDebugNode`\r\n * Previously, old view engine exposed `window.ng.coreTokens` and\r\n * `window.ng.probe` if an application was in development/production.\r\n * Ivy doesn't expose these functions in production. Developers will be able\r\n * to see warnings in both JIT/AOT modes, but only if an application\r\n * is in development.\r\n * @return {?}\r\n */\r\nfunction setIvyEnabledInDevMode() {\r\n    try {\r\n        // `try-catch` will also handle server-side rendering, as\r\n        // `window is not defined` will not be thrown.\r\n        /** @type {?} */\r\n        const ng = ((/** @type {?} */ (window))).ng;\r\n        /** @type {?} */\r\n        const _viewEngineEnabled = !!ng.probe && !!ng.coreTokens;\r\n        /** @type {?} */\r\n        const _ivyEnabledInDevMode = !_viewEngineEnabled && isDevMode();\r\n        _ivyEnabledInDevMode$.next(_ivyEnabledInDevMode);\r\n    }\r\n    catch (_a) {\r\n        _ivyEnabledInDevMode$.next(false);\r\n    }\r\n    finally {\r\n        _ivyEnabledInDevMode$.complete();\r\n    }\r\n}\r\n/**\r\n * @return {?}\r\n */\r\nfunction ivyEnabledInDevMode() {\r\n    return _ivyEnabledInDevMode$.asObservable();\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Root module\r\n * @ignore\r\n */\r\nclass NgxsRootModule {\r\n    /**\r\n     * @param {?} factory\r\n     * @param {?} internalStateOperations\r\n     * @param {?} _store\r\n     * @param {?} _select\r\n     * @param {?=} states\r\n     * @param {?=} lifecycleStateManager\r\n     */\r\n    constructor(factory, internalStateOperations, _store, _select, states = [], lifecycleStateManager) {\r\n        // Validate states on having the `@Injectable()` decorator in Ivy\r\n        setIvyEnabledInDevMode();\r\n        // Add stores to the state graph and return their defaults\r\n        /** @type {?} */\r\n        const results = factory.addAndReturnDefaults(states);\r\n        internalStateOperations.setStateToTheCurrentWithNew(results);\r\n        // Connect our actions stream\r\n        factory.connectActionHandlers();\r\n        // Dispatch the init action and invoke init and bootstrap functions after\r\n        lifecycleStateManager.ngxsBootstrap(new InitState(), results);\r\n    }\r\n}\nNgxsRootModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: NgxsRootModule });\nNgxsRootModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function NgxsRootModule_Factory(t) { return new (t || NgxsRootModule)(ɵngcc0.ɵɵinject(StateFactory), ɵngcc0.ɵɵinject(InternalStateOperations), ɵngcc0.ɵɵinject(Store), ɵngcc0.ɵɵinject(SelectFactory), ɵngcc0.ɵɵinject(ROOT_STATE_TOKEN, 8), ɵngcc0.ɵɵinject(LifecycleStateManager)); } });\r\n/** @nocollapse */\r\nNgxsRootModule.ctorParameters = () => [\r\n    { type: StateFactory },\r\n    { type: InternalStateOperations },\r\n    { type: Store },\r\n    { type: SelectFactory },\r\n    { type: Array, decorators: [{ type: Optional }, { type: Inject, args: [ROOT_STATE_TOKEN,] }] },\r\n    { type: LifecycleStateManager }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgxsRootModule, [{\n        type: NgModule\n    }], function () { return [{ type: StateFactory }, { type: InternalStateOperations }, { type: Store }, { type: SelectFactory }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ROOT_STATE_TOKEN]\n            }] }, { type: LifecycleStateManager }]; }, null); })();\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Feature module\r\n * @ignore\r\n */\r\nclass NgxsFeatureModule {\r\n    /**\r\n     * @param {?} _store\r\n     * @param {?} internalStateOperations\r\n     * @param {?} factory\r\n     * @param {?=} states\r\n     * @param {?=} lifecycleStateManager\r\n     */\r\n    constructor(_store, internalStateOperations, factory, states = [], lifecycleStateManager) {\r\n        // Since FEATURE_STATE_TOKEN is a multi token, we need to\r\n        // flatten it [[Feature1State, Feature2State], [Feature3State]]\r\n        /** @type {?} */\r\n        const flattenedStates = NgxsFeatureModule.flattenStates(states);\r\n        // add stores to the state graph and return their defaults\r\n        /** @type {?} */\r\n        const results = factory.addAndReturnDefaults(flattenedStates);\r\n        if (results.states.length) {\r\n            internalStateOperations.setStateToTheCurrentWithNew(results);\r\n            // dispatch the update action and invoke init and bootstrap functions after\r\n            lifecycleStateManager.ngxsBootstrap(new UpdateState(results.defaults), results);\r\n        }\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?=} states\r\n     * @return {?}\r\n     */\r\n    static flattenStates(states = []) {\r\n        return states.reduce((/**\r\n         * @param {?} total\r\n         * @param {?} values\r\n         * @return {?}\r\n         */\r\n        (total, values) => total.concat(values)), []);\r\n    }\r\n}\nNgxsFeatureModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: NgxsFeatureModule });\nNgxsFeatureModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function NgxsFeatureModule_Factory(t) { return new (t || NgxsFeatureModule)(ɵngcc0.ɵɵinject(Store), ɵngcc0.ɵɵinject(InternalStateOperations), ɵngcc0.ɵɵinject(StateFactory), ɵngcc0.ɵɵinject(FEATURE_STATE_TOKEN, 8), ɵngcc0.ɵɵinject(LifecycleStateManager)); } });\r\n/** @nocollapse */\r\nNgxsFeatureModule.ctorParameters = () => [\r\n    { type: Store },\r\n    { type: InternalStateOperations },\r\n    { type: StateFactory },\r\n    { type: Array, decorators: [{ type: Optional }, { type: Inject, args: [FEATURE_STATE_TOKEN,] }] },\r\n    { type: LifecycleStateManager }\r\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgxsFeatureModule, [{\n        type: NgModule\n    }], function () { return [{ type: Store }, { type: InternalStateOperations }, { type: StateFactory }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [FEATURE_STATE_TOKEN]\n            }] }, { type: LifecycleStateManager }]; }, null); })();\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Ngxs Module\r\n */\r\nclass NgxsModule {\r\n    /**\r\n     * Root module factory\r\n     * @param {?=} states\r\n     * @param {?=} options\r\n     * @return {?}\r\n     */\r\n    static forRoot(states = [], options = {}) {\r\n        return {\r\n            ngModule: NgxsRootModule,\r\n            providers: [\r\n                StateFactory,\r\n                StateContextFactory,\r\n                Actions,\r\n                InternalActions,\r\n                NgxsBootstrapper,\r\n                ConfigValidator,\r\n                HostEnvironment,\r\n                LifecycleStateManager,\r\n                InternalDispatcher,\r\n                InternalDispatchedActionResults,\r\n                InternalStateOperations,\r\n                InternalNgxsExecutionStrategy,\r\n                Store,\r\n                StateStream,\r\n                SelectFactory,\r\n                PluginManager,\r\n                ...states,\r\n                ...NgxsModule.ngxsTokenProviders(states, options)\r\n            ]\r\n        };\r\n    }\r\n    /**\r\n     * Feature module factory\r\n     * @param {?=} states\r\n     * @return {?}\r\n     */\r\n    static forFeature(states = []) {\r\n        return {\r\n            ngModule: NgxsFeatureModule,\r\n            providers: [\r\n                StateFactory,\r\n                PluginManager,\r\n                ...states,\r\n                {\r\n                    provide: FEATURE_STATE_TOKEN,\r\n                    multi: true,\r\n                    useValue: states\r\n                }\r\n            ]\r\n        };\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} states\r\n     * @param {?} options\r\n     * @return {?}\r\n     */\r\n    static ngxsTokenProviders(states, options) {\r\n        return [\r\n            {\r\n                provide: NG_TEST_MODE,\r\n                useValue: isAngularInTestMode\r\n            },\r\n            {\r\n                provide: NG_DEV_MODE,\r\n                useValue: isDevMode\r\n            },\r\n            {\r\n                provide: NGXS_EXECUTION_STRATEGY,\r\n                useClass: options.executionStrategy || DispatchOutsideZoneNgxsExecutionStrategy\r\n            },\r\n            {\r\n                provide: ROOT_STATE_TOKEN,\r\n                useValue: states\r\n            },\r\n            {\r\n                provide: NgxsModule.ROOT_OPTIONS,\r\n                useValue: options\r\n            },\r\n            {\r\n                provide: NgxsConfig,\r\n                useFactory: NgxsModule.ngxsConfigFactory,\r\n                deps: [NgxsModule.ROOT_OPTIONS]\r\n            },\r\n            {\r\n                provide: APP_BOOTSTRAP_LISTENER,\r\n                useFactory: NgxsModule.appBootstrapListenerFactory,\r\n                multi: true,\r\n                deps: [NgxsBootstrapper]\r\n            },\r\n            {\r\n                provide: INITIAL_STATE_TOKEN,\r\n                useFactory: NgxsModule.getInitialState\r\n            },\r\n            {\r\n                provide: NGXS_STATE_CONTEXT_FACTORY,\r\n                useExisting: StateContextFactory\r\n            },\r\n            {\r\n                provide: NGXS_STATE_FACTORY,\r\n                useExisting: StateFactory\r\n            }\r\n        ];\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} options\r\n     * @return {?}\r\n     */\r\n    static ngxsConfigFactory(options) {\r\n        return Object.assign(new NgxsConfig(), options);\r\n    }\r\n    /**\r\n     * @private\r\n     * @param {?} bootstrapper\r\n     * @return {?}\r\n     */\r\n    static appBootstrapListenerFactory(bootstrapper) {\r\n        return (/**\r\n         * @return {?}\r\n         */\r\n        () => bootstrapper.bootstrap());\r\n    }\r\n    /**\r\n     * @private\r\n     * @return {?}\r\n     */\r\n    static getInitialState() {\r\n        return InitialState.pop();\r\n    }\r\n}\nNgxsModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: NgxsModule });\nNgxsModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function NgxsModule_Factory(t) { return new (t || NgxsModule)(); } });\r\nNgxsModule.ROOT_OPTIONS = new InjectionToken('ROOT_OPTIONS');\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgxsModule, [{\n        type: NgModule\n    }], null, null); })();\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    NgxsModule.ROOT_OPTIONS;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Decorates a method with a action information.\r\n * @param {?} actions\r\n * @param {?=} options\r\n * @return {?}\r\n */\r\nfunction Action(actions, options) {\r\n    return (/**\r\n     * @param {?} target\r\n     * @param {?} name\r\n     * @return {?}\r\n     */\r\n    (target, name) => {\r\n        /** @type {?} */\r\n        const isStaticMethod = target.hasOwnProperty('prototype');\r\n        if (isStaticMethod) {\r\n            throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.ACTION_DECORATOR]());\r\n        }\r\n        /** @type {?} */\r\n        const meta = ensureStoreMetadata(target.constructor);\r\n        if (!Array.isArray(actions)) {\r\n            actions = [actions];\r\n        }\r\n        for (const action of actions) {\r\n            /** @type {?} */\r\n            const type = action.type;\r\n            if (!meta.actions[type]) {\r\n                meta.actions[type] = [];\r\n            }\r\n            meta.actions[type].push({\r\n                fn: name,\r\n                options: options || {},\r\n                type\r\n            });\r\n        }\r\n    });\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * All provided or injected tokens must have `\\@Injectable` decorator\r\n * (previously, injected tokens without `\\@Injectable` were allowed\r\n * if another decorator was used, e.g. pipes).\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction ensureStateClassIsInjectable(target) {\r\n    // `ɵprov` is a static property added by the NGCC compiler. It always exists in\r\n    // AOT mode because this property is added before runtime. If an application is running in\r\n    // JIT mode then this property can be added by the `@Injectable()` decorator. The `@Injectable()`\r\n    // decorator has to go after the `@State()` decorator, thus we prevent users from unwanted DI errors.\r\n    ivyEnabledInDevMode().subscribe((/**\r\n     * @param {?} _ivyEnabledInDevMode\r\n     * @return {?}\r\n     */\r\n    _ivyEnabledInDevMode => {\r\n        if (_ivyEnabledInDevMode) {\r\n            /** @type {?} */\r\n            /** @nocollapse */ const ngInjectableDef = target.ɵprov;\r\n            if (!ngInjectableDef) {\r\n                // Don't warn if Ivy is disabled or `ɵprov` exists on the class\r\n                console.warn(CONFIG_MESSAGES[VALIDATION_CODE.UNDECORATED_STATE_IN_IVY](target.name));\r\n            }\r\n        }\r\n    }));\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @record\r\n * @template T\r\n */\r\nfunction MutateMetaOptions() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    MutateMetaOptions.prototype.meta;\r\n    /** @type {?} */\r\n    MutateMetaOptions.prototype.inheritedStateClass;\r\n    /** @type {?} */\r\n    MutateMetaOptions.prototype.optionsWithInheritance;\r\n}\r\n/**\r\n * Decorates a class with ngxs state information.\r\n * @template T\r\n * @param {?} options\r\n * @return {?}\r\n */\r\nfunction State(options) {\r\n    /**\r\n     * @param {?} inheritedStateClass\r\n     * @return {?}\r\n     */\r\n    function getStateOptions(inheritedStateClass) {\r\n        /** @type {?} */\r\n        const inheritanceOptions = inheritedStateClass[META_OPTIONS_KEY] || {};\r\n        return (/** @type {?} */ (Object.assign({}, inheritanceOptions, options)));\r\n    }\r\n    /**\r\n     * @param {?} params\r\n     * @return {?}\r\n     */\r\n    function mutateMetaData(params) {\r\n        const { meta, inheritedStateClass, optionsWithInheritance } = params;\r\n        const { children, defaults, name } = optionsWithInheritance;\r\n        /** @type {?} */\r\n        const stateName = typeof name === 'string' ? name : (name && name.getName()) || null;\r\n        StoreValidators.checkCorrectStateName(stateName);\r\n        if (inheritedStateClass.hasOwnProperty(META_KEY)) {\r\n            /** @type {?} */\r\n            const inheritedMeta = inheritedStateClass[META_KEY] || {};\r\n            meta.actions = Object.assign({}, meta.actions, inheritedMeta.actions);\r\n        }\r\n        meta.children = children;\r\n        meta.defaults = defaults;\r\n        meta.name = stateName;\r\n    }\r\n    return (/**\r\n     * @param {?} target\r\n     * @return {?}\r\n     */\r\n    (target) => {\r\n        ensureStateClassIsInjectable(target);\r\n        /** @type {?} */\r\n        const stateClass = target;\r\n        /** @type {?} */\r\n        const meta = ensureStoreMetadata(stateClass);\r\n        /** @type {?} */\r\n        const inheritedStateClass = Object.getPrototypeOf(stateClass);\r\n        /** @type {?} */\r\n        const optionsWithInheritance = getStateOptions(inheritedStateClass);\r\n        mutateMetaData({ meta, inheritedStateClass, optionsWithInheritance });\r\n        stateClass[META_OPTIONS_KEY] = optionsWithInheritance;\r\n    });\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/** @type {?} */\r\nconst DOLLAR_CHAR_CODE = 36;\r\n/**\r\n * @template T\r\n * @param {?} selector\r\n * @return {?}\r\n */\r\nfunction createSelectObservable(selector) {\r\n    if (!SelectFactory.store) {\r\n        throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.SELECT_FACTORY_NOT_CONNECTED]());\r\n    }\r\n    return SelectFactory.store.select(selector);\r\n}\r\n/**\r\n * @param {?} name\r\n * @param {?=} rawSelector\r\n * @param {?=} paths\r\n * @return {?}\r\n */\r\nfunction createSelectorFn(name, rawSelector, paths = []) {\r\n    rawSelector = !rawSelector ? removeDollarAtTheEnd(name) : rawSelector;\r\n    if (typeof rawSelector === 'string') {\r\n        /** @type {?} */\r\n        const propsArray = paths.length\r\n            ? [rawSelector, ...paths]\r\n            : rawSelector.split('.');\r\n        return propGetter(propsArray, (/** @type {?} */ (SelectFactory.config)));\r\n    }\r\n    return rawSelector;\r\n}\r\n/**\r\n * \\@example If `foo$` => make it just `foo`\r\n * @param {?} name\r\n * @return {?}\r\n */\r\nfunction removeDollarAtTheEnd(name) {\r\n    /** @type {?} */\r\n    const lastCharIndex = name.length - 1;\r\n    /** @type {?} */\r\n    const dollarAtTheEnd = name.charCodeAt(lastCharIndex) === DOLLAR_CHAR_CODE;\r\n    return dollarAtTheEnd ? name.slice(0, lastCharIndex) : name;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Decorator for selecting a slice of state from the store.\r\n * @template T\r\n * @param {?=} rawSelector\r\n * @param {...?} paths\r\n * @return {?}\r\n */\r\nfunction Select(rawSelector, ...paths) {\r\n    return (/**\r\n     * @template U, K\r\n     * @param {?} target\r\n     * @param {?} key\r\n     * @return {?}\r\n     */\r\n    function (target, key) {\r\n        /** @type {?} */\r\n        const name = key.toString();\r\n        /** @type {?} */\r\n        const selectorId = `__${name}__selector`;\r\n        /** @type {?} */\r\n        const selector = createSelectorFn(name, rawSelector, paths);\r\n        Object.defineProperties(target, {\r\n            [selectorId]: {\r\n                writable: true,\r\n                enumerable: false,\r\n                configurable: true\r\n            },\r\n            [name]: {\r\n                enumerable: true,\r\n                configurable: true,\r\n                /**\r\n                 * @return {?}\r\n                 */\r\n                get() {\r\n                    return this[selectorId] || (this[selectorId] = createSelectObservable(selector));\r\n                }\r\n            }\r\n        });\r\n    });\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Decorator for setting selector options at a method or class level.\r\n * @param {?} options\r\n * @return {?}\r\n */\r\nfunction SelectorOptions(options) {\r\n    return (/** @type {?} */ (((/**\r\n     * @template T\r\n     * @param {?} target\r\n     * @param {?} methodName\r\n     * @param {?} descriptor\r\n     * @return {?}\r\n     */\r\n    function decorate(target, methodName, descriptor) {\r\n        if (methodName) {\r\n            // Method Decorator\r\n            /** @type {?} */\r\n            const originalFn = descriptor.value || ((/** @type {?} */ (descriptor))).originalFn;\r\n            if (originalFn) {\r\n                selectorOptionsMetaAccessor.defineOptions(originalFn, options);\r\n            }\r\n        }\r\n        else {\r\n            // Class Decorator\r\n            selectorOptionsMetaAccessor.defineOptions(target, options);\r\n        }\r\n    }))));\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @record\r\n */\r\nfunction MetaDataModel$1() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    MetaDataModel$1.prototype.name;\r\n    /** @type {?} */\r\n    MetaDataModel$1.prototype.actions;\r\n    /** @type {?} */\r\n    MetaDataModel$1.prototype.defaults;\r\n    /** @type {?} */\r\n    MetaDataModel$1.prototype.path;\r\n    /** @type {?|undefined} */\r\n    MetaDataModel$1.prototype.children;\r\n}\r\n/**\r\n * @record\r\n */\r\nfunction SelectorMetaDataModel$1() { }\r\nif (false) {\r\n    /** @type {?} */\r\n    SelectorMetaDataModel$1.prototype.originalFn;\r\n    /** @type {?} */\r\n    SelectorMetaDataModel$1.prototype.containerClass;\r\n    /** @type {?} */\r\n    SelectorMetaDataModel$1.prototype.selectorName;\r\n    /** @type {?} */\r\n    SelectorMetaDataModel$1.prototype.getSelectorOptions;\r\n}\r\n/**\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction ensureStoreMetadata$1(target) {\r\n    return ensureStoreMetadata(target);\r\n}\r\n/**\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction getStoreMetadata$1(target) {\r\n    return getStoreMetadata(target);\r\n}\r\n/**\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction ensureSelectorMetadata$1(target) {\r\n    return ensureSelectorMetadata(target);\r\n}\r\n/**\r\n * @param {?} target\r\n * @return {?}\r\n */\r\nfunction getSelectorMetadata$1(target) {\r\n    return getSelectorMetadata(target);\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * Decorator for memoizing a state selector.\r\n * @template T\r\n * @param {?=} selectors\r\n * @return {?}\r\n */\r\nfunction Selector(selectors) {\r\n    return (/**\r\n     * @template U\r\n     * @param {?} target\r\n     * @param {?} key\r\n     * @param {?} descriptor\r\n     * @return {?}\r\n     */\r\n    (target, key, descriptor) => {\r\n        /** @type {?} */\r\n        const isNotMethod = !(descriptor && descriptor.value !== null);\r\n        if (isNotMethod) {\r\n            throw new Error(CONFIG_MESSAGES[VALIDATION_CODE.SELECTOR_DECORATOR]());\r\n        }\r\n        /** @type {?} */\r\n        const originalFn = descriptor.value;\r\n        /** @type {?} */\r\n        const memoizedFn = createSelector(selectors, (/** @type {?} */ (originalFn)), {\r\n            containerClass: target,\r\n            selectorName: key.toString(),\r\n            /**\r\n             * @return {?}\r\n             */\r\n            getSelectorOptions() {\r\n                return {};\r\n            }\r\n        });\r\n        /** @type {?} */\r\n        const newDescriptor = {\r\n            configurable: true,\r\n            /**\r\n             * @return {?}\r\n             */\r\n            get() {\r\n                return memoizedFn;\r\n            }\r\n        };\r\n        // Add hidden property to descriptor\r\n        ((/** @type {?} */ (newDescriptor)))['originalFn'] = originalFn;\r\n        return newDescriptor;\r\n    });\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\nclass NoopNgxsExecutionStrategy {\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    enter(func) {\r\n        return func();\r\n    }\r\n    /**\r\n     * @template T\r\n     * @param {?} func\r\n     * @return {?}\r\n     */\r\n    leave(func) {\r\n        return func();\r\n    }\r\n}\nNoopNgxsExecutionStrategy.ɵfac = function NoopNgxsExecutionStrategy_Factory(t) { return new (t || NoopNgxsExecutionStrategy)(); };\nNoopNgxsExecutionStrategy.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: NoopNgxsExecutionStrategy, factory: NoopNgxsExecutionStrategy.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NoopNgxsExecutionStrategy, [{\n        type: Injectable\n    }], null, null); })();\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\r\n/**\r\n * @template T\r\n */\r\nclass StateToken {\r\n    /**\r\n     * @param {?} name\r\n     */\r\n    constructor(name) {\r\n        this.name = name;\r\n        /** @type {?} */\r\n        const selectorMetadata = ensureSelectorMetadata((/** @type {?} */ (this)));\r\n        selectorMetadata.makeRootSelector = (/**\r\n         * @param {?} runtimeContext\r\n         * @return {?}\r\n         */\r\n        (runtimeContext) => {\r\n            return runtimeContext.getStateGetter(this.name);\r\n        });\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    getName() {\r\n        return this.name;\r\n    }\r\n    /**\r\n     * @return {?}\r\n     */\r\n    toString() {\r\n        return `StateToken[${this.name}]`;\r\n    }\r\n}\r\nif (false) {\r\n    /**\r\n     * @type {?}\r\n     * @private\r\n     */\r\n    StateToken.prototype.name;\r\n}\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\n\n/**\r\n * @fileoverview added by tsickle\r\n * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\r\n */\n\nexport { Action, Actions, InitState, NGXS_PLUGINS, NgxsModule, NgxsSimpleChange, NoopNgxsExecutionStrategy, Select, Selector, SelectorOptions, State, StateStream, StateToken, Store, UpdateState, actionMatcher, createSelector, ensureSelectorMetadata$1 as ensureSelectorMetadata, ensureStoreMetadata$1 as ensureStoreMetadata, getActionTypeFromInstance, getSelectorMetadata$1 as getSelectorMetadata, getStoreMetadata$1 as getStoreMetadata, getValue, ofAction, ofActionCanceled, ofActionCompleted, ofActionDispatched, ofActionErrored, ofActionSuccessful, setValue, OrderedSubject as ɵa, InternalActions as ɵb, LifecycleStateManager as ɵba, NgxsFeatureModule as ɵbb, DispatchOutsideZoneNgxsExecutionStrategy as ɵbc, ROOT_STATE_TOKEN as ɵc, FEATURE_STATE_TOKEN as ɵd, NG_TEST_MODE as ɵe, NG_DEV_MODE as ɵf, SELECTOR_META_KEY as ɵg, NgxsConfig as ɵh, NGXS_EXECUTION_STRATEGY as ɵi, NgxsRootModule as ɵj, StateFactory as ɵk, InternalDispatchedActionResults as ɵl, InternalDispatcher as ɵm, StateContextFactory as ɵn, InternalStateOperations as ɵo, PluginManager as ɵp, InternalNgxsExecutionStrategy as ɵq, ConfigValidator as ɵr, HostEnvironment as ɵs, ensureStoreMetadata as ɵv, getStoreMetadata as ɵw, ensureSelectorMetadata as ɵx, getSelectorMetadata as ɵy, SelectFactory as ɵz };\n\n//# sourceMappingURL=ngxs-store.js.map","export class OpenObjectSettingsPanel {\r\n    static readonly type = '[Editor.Objects] Open Object Settings Panel';\r\n    constructor(public panel: string) {}\r\n}\r\n\r\nexport class MarkAsDirty {\r\n    static readonly type = '[Editor.Objects] Mark as Dirty';\r\n}","import {ITextOptions, Shadow} from 'fabric/fabric-impl';\r\nimport {FontItem} from '../../image-editor-ui/toolbar-controls/widgets/google-fonts-panel/font-item';\r\n\r\nexport interface PixieObjOptions extends Omit<ITextOptions, 'fontFamily'> {\r\n    fontFamily?: FontItem|string;\r\n    activeFont?: FontItem;\r\n}\r\n\r\nexport function normalizeObjectProps(obj: PixieObjOptions): ITextOptions {\r\n    const copy = {...obj};\r\n    // no need to apply shadow, if it won't be visible\r\n    if (copy.shadow && (copy.shadow as Shadow).offsetX === -1) {\r\n        delete copy.shadow;\r\n    }\r\n\r\n    if (typeof copy.fontFamily === 'object') {\r\n        copy.activeFont = copy.fontFamily;\r\n        copy.fontFamily = copy.activeFont.family;\r\n    }\r\n\r\n    return copy as ITextOptions;\r\n}\r\n","export class ObjectNames {\r\n    static text = {name: 'text', icon: 'text-box-custom'};\r\n    static shape = {name: 'shape', icon: 'polygon-custom'};\r\n    static sticker = {name: 'sticker', icon: 'sticker-custom'};\r\n    static drawing = {name: 'drawing', icon: 'pencil-custom'};\r\n    static image = {name: 'image', icon: 'photo-library'};\r\n    static mainImage = {name: 'mainImage', icon: 'photo-library'};\r\n}\r\n\r\n","export function randomString(length: number = 36) {\r\n    let random = '';\r\n    let possible = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';\r\n\r\n    for (let i = 0; i < length; i++) {\r\n        random += possible.charAt(Math.floor(Math.random() * possible.length));\r\n    }\r\n\r\n    return random;\r\n}","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { InjectionToken, forwardRef, Directive, Renderer2, ElementRef, Optional, Inject, Self, ɵisPromise, ɵisObservable, Injectable, Injector, Input, ɵlooseIdentical, Host, isDevMode, EventEmitter, SkipSelf, Output, NgModule, Version } from '@angular/core';\nimport { ɵgetDOM } from '@angular/common';\nimport { forkJoin, from } from 'rxjs';\nimport { map } from 'rxjs/operators';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/control_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@description\n * Defines an interface that acts as a bridge between the Angular forms API and a\n * native element in the DOM.\n *\n * Implement this interface to create a custom form control directive\n * that integrates with Angular forms.\n *\n * @see DefaultValueAccessor\n *\n * \\@publicApi\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nfunction ControlValueAccessor() { }\nif (false) {\n    /**\n     * \\@description\n     * Writes a new value to the element.\n     *\n     * This method is called by the forms API to write to the view when programmatic\n     * changes from model to view are requested.\n     *\n     * \\@usageNotes\n     * ### Write a value to the element\n     *\n     * The following example writes a value to the native DOM element.\n     *\n     * ```ts\n     * writeValue(value: any): void {\n     *   this._renderer.setProperty(this._elementRef.nativeElement, 'value', value);\n     * }\n     * ```\n     *\n     * @param {?} obj The new value for the element\n     * @return {?}\n     */\n    ControlValueAccessor.prototype.writeValue = function (obj) { };\n    /**\n     * \\@description\n     * Registers a callback function that is called when the control's value\n     * changes in the UI.\n     *\n     * This method is called by the forms API on initialization to update the form\n     * model when values propagate from the view to the model.\n     *\n     * When implementing the `registerOnChange` method in your own value accessor,\n     * save the given function so your class calls it at the appropriate time.\n     *\n     * \\@usageNotes\n     * ### Store the change function\n     *\n     * The following example stores the provided function as an internal method.\n     *\n     * ```ts\n     * registerOnChange(fn: (_: any) => void): void {\n     *   this._onChange = fn;\n     * }\n     * ```\n     *\n     * When the value changes in the UI, call the registered\n     * function to allow the forms API to update itself:\n     *\n     * ```ts\n     * host: {\n     *    '(change)': '_onChange($event.target.value)'\n     * }\n     * ```\n     *\n     * @param {?} fn The callback function to register\n     * @return {?}\n     */\n    ControlValueAccessor.prototype.registerOnChange = function (fn) { };\n    /**\n     * \\@description\n     * Registers a callback function is called by the forms API on initialization\n     * to update the form model on blur.\n     *\n     * When implementing `registerOnTouched` in your own value accessor, save the given\n     * function so your class calls it when the control should be considered\n     * blurred or \"touched\".\n     *\n     * \\@usageNotes\n     * ### Store the callback function\n     *\n     * The following example stores the provided function as an internal method.\n     *\n     * ```ts\n     * registerOnTouched(fn: any): void {\n     *   this._onTouched = fn;\n     * }\n     * ```\n     *\n     * On blur (or equivalent), your class should call the registered function to allow\n     * the forms API to update itself:\n     *\n     * ```ts\n     * host: {\n     *    '(blur)': '_onTouched()'\n     * }\n     * ```\n     *\n     * @param {?} fn The callback function to register\n     * @return {?}\n     */\n    ControlValueAccessor.prototype.registerOnTouched = function (fn) { };\n    /**\n     * \\@description\n     * Function that is called by the forms API when the control status changes to\n     * or from 'DISABLED'. Depending on the status, it enables or disables the\n     * appropriate DOM element.\n     *\n     * \\@usageNotes\n     * The following is an example of writing the disabled property to a native DOM element:\n     *\n     * ```ts\n     * setDisabledState(isDisabled: boolean): void {\n     *   this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n     * }\n     * ```\n     *\n     * @param {?} isDisabled The disabled status to set on the element\n     * @return {?}\n     */\n    ControlValueAccessor.prototype.setDisabledState = function (isDisabled) { };\n}\n/**\n * Used to provide a `ControlValueAccessor` for form controls.\n *\n * See `DefaultValueAccessor` for how to implement one.\n *\n * \\@publicApi\n * @type {?}\n */\nconst NG_VALUE_ACCESSOR = new InjectionToken('NgValueAccessor');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/checkbox_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst CHECKBOX_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => CheckboxControlValueAccessor)),\n    multi: true,\n};\n/**\n * \\@description\n * A `ControlValueAccessor` for writing a value and listening to changes on a checkbox input\n * element.\n *\n * \\@usageNotes\n *\n * ### Using a checkbox with a reactive form.\n *\n * The following example shows how to use a checkbox with a reactive form.\n *\n * ```ts\n * const rememberLoginControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"checkbox\" [formControl]=\"rememberLoginControl\">\n * ```\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass CheckboxControlValueAccessor {\n    /**\n     * @param {?} _renderer\n     * @param {?} _elementRef\n     */\n    constructor(_renderer, _elementRef) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        /**\n         * \\@description\n         * The registered callback function called when a change event occurs on the input element.\n         */\n        this.onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => { });\n        /**\n         * \\@description\n         * The registered callback function called when a blur event occurs on the input element.\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n    }\n    /**\n     * Sets the \"checked\" property on the input element.\n     *\n     * @param {?} value The checked value\n     * @return {?}\n     */\n    writeValue(value) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'checked', value);\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control value changes.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this.onChange = fn;\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control is touched.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the input element.\n     *\n     * @param {?} isDisabled The disabled value\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n    }\n}\nCheckboxControlValueAccessor.ɵfac = function CheckboxControlValueAccessor_Factory(t) { return new (t || CheckboxControlValueAccessor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef)); };\nCheckboxControlValueAccessor.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CheckboxControlValueAccessor, selectors: [[\"input\", \"type\", \"checkbox\", \"formControlName\", \"\"], [\"input\", \"type\", \"checkbox\", \"formControl\", \"\"], [\"input\", \"type\", \"checkbox\", \"ngModel\", \"\"]], hostBindings: function CheckboxControlValueAccessor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"change\", function CheckboxControlValueAccessor_change_HostBindingHandler($event) { return ctx.onChange($event.target.checked); })(\"blur\", function CheckboxControlValueAccessor_blur_HostBindingHandler() { return ctx.onTouched(); });\n    } }, features: [ɵngcc0.ɵɵProvidersFeature([CHECKBOX_VALUE_ACCESSOR])] });\n/** @nocollapse */\nCheckboxControlValueAccessor.ctorParameters = () => [\n    { type: Renderer2 },\n    { type: ElementRef }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CheckboxControlValueAccessor, [{\n        type: Directive,\n        args: [{\n                selector: 'input[type=checkbox][formControlName],input[type=checkbox][formControl],input[type=checkbox][ngModel]',\n                host: { '(change)': 'onChange($event.target.checked)', '(blur)': 'onTouched()' },\n                providers: [CHECKBOX_VALUE_ACCESSOR]\n            }]\n    }], function () { return [{ type: ɵngcc0.Renderer2 }, { type: ɵngcc0.ElementRef }]; }, null); })();\nif (false) {\n    /**\n     * \\@description\n     * The registered callback function called when a change event occurs on the input element.\n     * @type {?}\n     */\n    CheckboxControlValueAccessor.prototype.onChange;\n    /**\n     * \\@description\n     * The registered callback function called when a blur event occurs on the input element.\n     * @type {?}\n     */\n    CheckboxControlValueAccessor.prototype.onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    CheckboxControlValueAccessor.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    CheckboxControlValueAccessor.prototype._elementRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/default_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst DEFAULT_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => DefaultValueAccessor)),\n    multi: true\n};\n/**\n * We must check whether the agent is Android because composition events\n * behave differently between iOS and Android.\n * @return {?}\n */\nfunction _isAndroid() {\n    /** @type {?} */\n    const userAgent = ɵgetDOM() ? ɵgetDOM().getUserAgent() : '';\n    return /android (\\d+)/.test(userAgent.toLowerCase());\n}\n/**\n * \\@description\n * Provide this token to control if form directives buffer IME input until\n * the \"compositionend\" event occurs.\n * \\@publicApi\n * @type {?}\n */\nconst COMPOSITION_BUFFER_MODE = new InjectionToken('CompositionEventMode');\n/**\n * \\@description\n * The default `ControlValueAccessor` for writing a value and listening to changes on input\n * elements. The accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * \\@usageNotes\n *\n * ### Using the default value accessor\n *\n * The following example shows how to use an input element that activates the default value accessor\n * (in this case, a text field).\n *\n * ```ts\n * const firstNameControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"text\" [formControl]=\"firstNameControl\">\n * ```\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass DefaultValueAccessor {\n    /**\n     * @param {?} _renderer\n     * @param {?} _elementRef\n     * @param {?} _compositionMode\n     */\n    constructor(_renderer, _elementRef, _compositionMode) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        this._compositionMode = _compositionMode;\n        /**\n         * \\@description\n         * The registered callback function called when an input event occurs on the input element.\n         */\n        this.onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => { });\n        /**\n         * \\@description\n         * The registered callback function called when a blur event occurs on the input element.\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * Whether the user is creating a composition string (IME events).\n         */\n        this._composing = false;\n        if (this._compositionMode == null) {\n            this._compositionMode = !_isAndroid();\n        }\n    }\n    /**\n     * Sets the \"value\" property on the input element.\n     *\n     * @param {?} value The checked value\n     * @return {?}\n     */\n    writeValue(value) {\n        /** @type {?} */\n        const normalizedValue = value == null ? '' : value;\n        this._renderer.setProperty(this._elementRef.nativeElement, 'value', normalizedValue);\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control value changes.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this.onChange = fn;\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control is touched.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the input element.\n     *\n     * @param {?} isDisabled The disabled value\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _handleInput(value) {\n        if (!this._compositionMode || (this._compositionMode && !this._composing)) {\n            this.onChange(value);\n        }\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _compositionStart() {\n        this._composing = true;\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _compositionEnd(value) {\n        this._composing = false;\n        this._compositionMode && this.onChange(value);\n    }\n}\nDefaultValueAccessor.ɵfac = function DefaultValueAccessor_Factory(t) { return new (t || DefaultValueAccessor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(COMPOSITION_BUFFER_MODE, 8)); };\nDefaultValueAccessor.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: DefaultValueAccessor, selectors: [[\"input\", \"formControlName\", \"\", 3, \"type\", \"checkbox\"], [\"textarea\", \"formControlName\", \"\"], [\"input\", \"formControl\", \"\", 3, \"type\", \"checkbox\"], [\"textarea\", \"formControl\", \"\"], [\"input\", \"ngModel\", \"\", 3, \"type\", \"checkbox\"], [\"textarea\", \"ngModel\", \"\"], [\"\", \"ngDefaultControl\", \"\"]], hostBindings: function DefaultValueAccessor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"input\", function DefaultValueAccessor_input_HostBindingHandler($event) { return ctx._handleInput($event.target.value); })(\"blur\", function DefaultValueAccessor_blur_HostBindingHandler() { return ctx.onTouched(); })(\"compositionstart\", function DefaultValueAccessor_compositionstart_HostBindingHandler() { return ctx._compositionStart(); })(\"compositionend\", function DefaultValueAccessor_compositionend_HostBindingHandler($event) { return ctx._compositionEnd($event.target.value); });\n    } }, features: [ɵngcc0.ɵɵProvidersFeature([DEFAULT_VALUE_ACCESSOR])] });\n/** @nocollapse */\nDefaultValueAccessor.ctorParameters = () => [\n    { type: Renderer2 },\n    { type: ElementRef },\n    { type: Boolean, decorators: [{ type: Optional }, { type: Inject, args: [COMPOSITION_BUFFER_MODE,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DefaultValueAccessor, [{\n        type: Directive,\n        args: [{\n                selector: 'input:not([type=checkbox])[formControlName],textarea[formControlName],input:not([type=checkbox])[formControl],textarea[formControl],input:not([type=checkbox])[ngModel],textarea[ngModel],[ngDefaultControl]',\n                // TODO: vsavkin replace the above selector with the one below it once\n                // https://github.com/angular/angular/issues/3011 is implemented\n                // selector: '[ngModel],[formControl],[formControlName]',\n                host: {\n                    '(input)': '$any(this)._handleInput($event.target.value)',\n                    '(blur)': 'onTouched()',\n                    '(compositionstart)': '$any(this)._compositionStart()',\n                    '(compositionend)': '$any(this)._compositionEnd($event.target.value)'\n                },\n                providers: [DEFAULT_VALUE_ACCESSOR]\n            }]\n    }], function () { return [{ type: ɵngcc0.Renderer2 }, { type: ɵngcc0.ElementRef }, { type: Boolean, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [COMPOSITION_BUFFER_MODE]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * \\@description\n     * The registered callback function called when an input event occurs on the input element.\n     * @type {?}\n     */\n    DefaultValueAccessor.prototype.onChange;\n    /**\n     * \\@description\n     * The registered callback function called when a blur event occurs on the input element.\n     * @type {?}\n     */\n    DefaultValueAccessor.prototype.onTouched;\n    /**\n     * Whether the user is creating a composition string (IME events).\n     * @type {?}\n     * @private\n     */\n    DefaultValueAccessor.prototype._composing;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultValueAccessor.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultValueAccessor.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultValueAccessor.prototype._compositionMode;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/abstract_control_directive.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * \\@description\n * Base class for control directives.\n *\n * This class is only used internally in the `ReactiveFormsModule` and the `FormsModule`.\n *\n * \\@publicApi\n * @abstract\n */\nclass AbstractControlDirective {\n    /**\n     * \\@description\n     * Reports the value of the control if it is present, otherwise null.\n     * @return {?}\n     */\n    get value() {\n        return this.control ? this.control.value : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is valid. A control is considered valid if no\n     * validation errors exist with the current value.\n     * If the control is not present, null is returned.\n     * @return {?}\n     */\n    get valid() {\n        return this.control ? this.control.valid : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is invalid, meaning that an error exists in the input value.\n     * If the control is not present, null is returned.\n     * @return {?}\n     */\n    get invalid() {\n        return this.control ? this.control.invalid : null;\n    }\n    /**\n     * \\@description\n     * Reports whether a control is pending, meaning that that async validation is occurring and\n     * errors are not yet available for the input value. If the control is not present, null is\n     * returned.\n     * @return {?}\n     */\n    get pending() {\n        return this.control ? this.control.pending : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is disabled, meaning that the control is disabled\n     * in the UI and is exempt from validation checks and excluded from aggregate\n     * values of ancestor controls. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get disabled() {\n        return this.control ? this.control.disabled : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is enabled, meaning that the control is included in ancestor\n     * calculations of validity or value. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get enabled() {\n        return this.control ? this.control.enabled : null;\n    }\n    /**\n     * \\@description\n     * Reports the control's validation errors. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get errors() {\n        return this.control ? this.control.errors : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is pristine, meaning that the user has not yet changed\n     * the value in the UI. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get pristine() {\n        return this.control ? this.control.pristine : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is dirty, meaning that the user has changed\n     * the value in the UI. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get dirty() {\n        return this.control ? this.control.dirty : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is touched, meaning that the user has triggered\n     * a `blur` event on it. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get touched() {\n        return this.control ? this.control.touched : null;\n    }\n    /**\n     * \\@description\n     * Reports the validation status of the control. Possible values include:\n     * 'VALID', 'INVALID', 'DISABLED', and 'PENDING'.\n     * If the control is not present, null is returned.\n     * @return {?}\n     */\n    get status() {\n        return this.control ? this.control.status : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control is untouched, meaning that the user has not yet triggered\n     * a `blur` event on it. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get untouched() {\n        return this.control ? this.control.untouched : null;\n    }\n    /**\n     * \\@description\n     * Returns a multicasting observable that emits a validation status whenever it is\n     * calculated for the control. If the control is not present, null is returned.\n     * @return {?}\n     */\n    get statusChanges() {\n        return this.control ? this.control.statusChanges : null;\n    }\n    /**\n     * \\@description\n     * Returns a multicasting observable of value changes for the control that emits every time the\n     * value of the control changes in the UI or programmatically.\n     * If the control is not present, null is returned.\n     * @return {?}\n     */\n    get valueChanges() {\n        return this.control ? this.control.valueChanges : null;\n    }\n    /**\n     * \\@description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     * @return {?}\n     */\n    get path() {\n        return null;\n    }\n    /**\n     * \\@description\n     * Resets the control with the provided value if the control is present.\n     * @param {?=} value\n     * @return {?}\n     */\n    reset(value = undefined) {\n        if (this.control)\n            this.control.reset(value);\n    }\n    /**\n     * \\@description\n     * Reports whether the control with the given path has the error specified.\n     *\n     * \\@usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * If no path is given, this method checks for the error on the current control.\n     *\n     * @param {?} errorCode The code of the error to check\n     * @param {?=} path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @return {?} whether the given error is present in the control at the given path.\n     *\n     * If the control is not present, false is returned.\n     */\n    hasError(errorCode, path) {\n        return this.control ? this.control.hasError(errorCode, path) : false;\n    }\n    /**\n     * \\@description\n     * Reports error data for the control with the given path.\n     *\n     * \\@usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * @param {?} errorCode The code of the error to check\n     * @param {?=} path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @return {?} error data for that particular error. If the control or error is not present,\n     * null is returned.\n     */\n    getError(errorCode, path) {\n        return this.control ? this.control.getError(errorCode, path) : null;\n    }\n}\nAbstractControlDirective.ɵfac = function AbstractControlDirective_Factory(t) { return new (t || AbstractControlDirective)(); };\nAbstractControlDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: AbstractControlDirective });\n\nif (false) {\n    /**\n     * \\@description\n     * A reference to the underlying control.\n     *\n     * @abstract\n     * @return {?} the control that backs this directive. Most properties fall through to that instance.\n     */\n    AbstractControlDirective.prototype.control = function () { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/control_container.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@description\n * A base class for directives that contain multiple registered instances of `NgControl`.\n * Only used by the forms module.\n *\n * \\@publicApi\n * @abstract\n */\nclass ControlContainer extends AbstractControlDirective {\n    /**\n     * \\@description\n     * The top-level form directive for the control.\n     * @return {?}\n     */\n    get formDirective() {\n        return null;\n    }\n    /**\n     * \\@description\n     * The path to this group.\n     * @return {?}\n     */\n    get path() {\n        return null;\n    }\n}\nControlContainer.ɵfac = function ControlContainer_Factory(t) { return ɵControlContainer_BaseFactory(t || ControlContainer); };\nControlContainer.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: ControlContainer, features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵControlContainer_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(ControlContainer);\nif (false) {\n    /**\n     * \\@description\n     * The name for the control\n     * @type {?}\n     */\n    ControlContainer.prototype.name;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/ng_control.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @return {?}\n */\nfunction unimplemented() {\n    throw new Error('unimplemented');\n}\n/**\n * \\@description\n * A base class that all control `FormControl`-based directives extend. It binds a `FormControl`\n * object to a DOM element.\n *\n * \\@publicApi\n * @abstract\n */\nclass NgControl extends AbstractControlDirective {\n    constructor() {\n        super(...arguments);\n        /**\n         * \\@description\n         * The parent form for the control.\n         *\n         * \\@internal\n         */\n        this._parent = null;\n        /**\n         * \\@description\n         * The name for the control\n         */\n        this.name = null;\n        /**\n         * \\@description\n         * The value accessor for the control\n         */\n        this.valueAccessor = null;\n        /**\n         * \\@description\n         * The uncomposed array of synchronous validators for the control\n         *\n         * \\@internal\n         */\n        this._rawValidators = [];\n        /**\n         * \\@description\n         * The uncomposed array of async validators for the control\n         *\n         * \\@internal\n         */\n        this._rawAsyncValidators = [];\n    }\n    /**\n     * \\@description\n     * The registered synchronous validator function for the control\n     *\n     * @throws An exception that this method is not implemented\n     * @return {?}\n     */\n    get validator() {\n        return (/** @type {?} */ (unimplemented()));\n    }\n    /**\n     * \\@description\n     * The registered async validator function for the control\n     *\n     * @throws An exception that this method is not implemented\n     * @return {?}\n     */\n    get asyncValidator() {\n        return (/** @type {?} */ (unimplemented()));\n    }\n}\nif (false) {\n    /**\n     * \\@description\n     * The parent form for the control.\n     *\n     * \\@internal\n     * @type {?}\n     */\n    NgControl.prototype._parent;\n    /**\n     * \\@description\n     * The name for the control\n     * @type {?}\n     */\n    NgControl.prototype.name;\n    /**\n     * \\@description\n     * The value accessor for the control\n     * @type {?}\n     */\n    NgControl.prototype.valueAccessor;\n    /**\n     * \\@description\n     * The uncomposed array of synchronous validators for the control\n     *\n     * \\@internal\n     * @type {?}\n     */\n    NgControl.prototype._rawValidators;\n    /**\n     * \\@description\n     * The uncomposed array of async validators for the control\n     *\n     * \\@internal\n     * @type {?}\n     */\n    NgControl.prototype._rawAsyncValidators;\n    /**\n     * \\@description\n     * The callback method to update the model from the view when requested\n     *\n     * @abstract\n     * @param {?} newValue The new value for the view\n     * @return {?}\n     */\n    NgControl.prototype.viewToModelUpdate = function (newValue) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/ng_control_status.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass AbstractControlStatus {\n    /**\n     * @param {?} cd\n     */\n    constructor(cd) {\n        this._cd = cd;\n    }\n    /**\n     * @return {?}\n     */\n    get ngClassUntouched() {\n        return this._cd.control ? this._cd.control.untouched : false;\n    }\n    /**\n     * @return {?}\n     */\n    get ngClassTouched() {\n        return this._cd.control ? this._cd.control.touched : false;\n    }\n    /**\n     * @return {?}\n     */\n    get ngClassPristine() {\n        return this._cd.control ? this._cd.control.pristine : false;\n    }\n    /**\n     * @return {?}\n     */\n    get ngClassDirty() {\n        return this._cd.control ? this._cd.control.dirty : false;\n    }\n    /**\n     * @return {?}\n     */\n    get ngClassValid() {\n        return this._cd.control ? this._cd.control.valid : false;\n    }\n    /**\n     * @return {?}\n     */\n    get ngClassInvalid() {\n        return this._cd.control ? this._cd.control.invalid : false;\n    }\n    /**\n     * @return {?}\n     */\n    get ngClassPending() {\n        return this._cd.control ? this._cd.control.pending : false;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AbstractControlStatus.prototype._cd;\n}\n/** @type {?} */\nconst ngControlStatusHost = {\n    '[class.ng-untouched]': 'ngClassUntouched',\n    '[class.ng-touched]': 'ngClassTouched',\n    '[class.ng-pristine]': 'ngClassPristine',\n    '[class.ng-dirty]': 'ngClassDirty',\n    '[class.ng-valid]': 'ngClassValid',\n    '[class.ng-invalid]': 'ngClassInvalid',\n    '[class.ng-pending]': 'ngClassPending',\n};\n/**\n * \\@description\n * Directive automatically applied to Angular form controls that sets CSS classes\n * based on control status.\n *\n * \\@usageNotes\n *\n * ### CSS classes applied\n *\n * The following classes are applied as the properties become true:\n *\n * * ng-valid\n * * ng-invalid\n * * ng-pending\n * * ng-pristine\n * * ng-dirty\n * * ng-untouched\n * * ng-touched\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass NgControlStatus extends AbstractControlStatus {\n    /**\n     * @param {?} cd\n     */\n    constructor(cd) {\n        super(cd);\n    }\n}\nNgControlStatus.ɵfac = function NgControlStatus_Factory(t) { return new (t || NgControlStatus)(ɵngcc0.ɵɵdirectiveInject(NgControl, 2)); };\nNgControlStatus.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgControlStatus, selectors: [[\"\", \"formControlName\", \"\"], [\"\", \"ngModel\", \"\"], [\"\", \"formControl\", \"\"]], hostVars: 14, hostBindings: function NgControlStatus_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"ng-untouched\", ctx.ngClassUntouched)(\"ng-touched\", ctx.ngClassTouched)(\"ng-pristine\", ctx.ngClassPristine)(\"ng-dirty\", ctx.ngClassDirty)(\"ng-valid\", ctx.ngClassValid)(\"ng-invalid\", ctx.ngClassInvalid)(\"ng-pending\", ctx.ngClassPending);\n    } }, features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nNgControlStatus.ctorParameters = () => [\n    { type: NgControl, decorators: [{ type: Self }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgControlStatus, [{\n        type: Directive,\n        args: [{ selector: '[formControlName],[ngModel],[formControl]', host: ngControlStatusHost }]\n    }], function () { return [{ type: NgControl, decorators: [{\n                type: Self\n            }] }]; }, null); })();\n/**\n * \\@description\n * Directive automatically applied to Angular form groups that sets CSS classes\n * based on control status (valid/invalid/dirty/etc).\n *\n * @see `NgControlStatus`\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass NgControlStatusGroup extends AbstractControlStatus {\n    /**\n     * @param {?} cd\n     */\n    constructor(cd) {\n        super(cd);\n    }\n}\nNgControlStatusGroup.ɵfac = function NgControlStatusGroup_Factory(t) { return new (t || NgControlStatusGroup)(ɵngcc0.ɵɵdirectiveInject(ControlContainer, 2)); };\nNgControlStatusGroup.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgControlStatusGroup, selectors: [[\"\", \"formGroupName\", \"\"], [\"\", \"formArrayName\", \"\"], [\"\", \"ngModelGroup\", \"\"], [\"\", \"formGroup\", \"\"], [\"form\", 3, \"ngNoForm\", \"\"], [\"\", \"ngForm\", \"\"]], hostVars: 14, hostBindings: function NgControlStatusGroup_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"ng-untouched\", ctx.ngClassUntouched)(\"ng-touched\", ctx.ngClassTouched)(\"ng-pristine\", ctx.ngClassPristine)(\"ng-dirty\", ctx.ngClassDirty)(\"ng-valid\", ctx.ngClassValid)(\"ng-invalid\", ctx.ngClassInvalid)(\"ng-pending\", ctx.ngClassPending);\n    } }, features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nNgControlStatusGroup.ctorParameters = () => [\n    { type: ControlContainer, decorators: [{ type: Self }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgControlStatusGroup, [{\n        type: Directive,\n        args: [{\n                selector: '[formGroupName],[formArrayName],[ngModelGroup],[formGroup],form:not([ngNoForm]),[ngForm]',\n                host: ngControlStatusHost\n            }]\n    }], function () { return [{ type: ControlContainer, decorators: [{\n                type: Self\n            }] }]; }, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/validators.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isEmptyInputValue(value) {\n    // we don't check for string here so it also works with arrays\n    return value == null || value.length === 0;\n}\n/**\n * \\@description\n * An `InjectionToken` for registering additional synchronous validators used with\n * `AbstractControl`s.\n *\n * @see `NG_ASYNC_VALIDATORS`\n *\n * \\@usageNotes\n *\n * ### Providing a custom validator\n *\n * The following example registers a custom validator directive. Adding the validator to the\n * existing collection of validators requires the `multi: true` option.\n *\n * ```typescript\n * \\@Directive({\n *   selector: '[customValidator]',\n *   providers: [{provide: NG_VALIDATORS, useExisting: CustomValidatorDirective, multi: true}]\n * })\n * class CustomValidatorDirective implements Validator {\n *   validate(control: AbstractControl): ValidationErrors | null {\n *     return { 'custom': true };\n *   }\n * }\n * ```\n *\n * \\@publicApi\n * @type {?}\n */\nconst NG_VALIDATORS = new InjectionToken('NgValidators');\n/**\n * \\@description\n * An `InjectionToken` for registering additional asynchronous validators used with\n * `AbstractControl`s.\n *\n * @see `NG_VALIDATORS`\n *\n * \\@publicApi\n * @type {?}\n */\nconst NG_ASYNC_VALIDATORS = new InjectionToken('NgAsyncValidators');\n/**\n * A regular expression that matches valid e-mail addresses.\n *\n * At a high level, this regexp matches e-mail addresses of the format `local-part\\@tld`, where:\n * - `local-part` consists of one or more of the allowed characters (alphanumeric and some\n *   punctuation symbols).\n * - `local-part` cannot begin or end with a period (`.`).\n * - `local-part` cannot be longer than 64 characters.\n * - `tld` consists of one or more `labels` separated by periods (`.`). For example `localhost` or\n *   `foo.com`.\n * - A `label` consists of one or more of the allowed characters (alphanumeric, dashes (`-`) and\n *   periods (`.`)).\n * - A `label` cannot begin or end with a dash (`-`) or a period (`.`).\n * - A `label` cannot be longer than 63 characters.\n * - The whole address cannot be longer than 254 characters.\n *\n * ## Implementation background\n *\n * This regexp was ported over from AngularJS (see there for git history):\n * https://github.com/angular/angular.js/blob/c133ef836/src/ng/directive/input.js#L27\n * It is based on the\n * [WHATWG version](https://html.spec.whatwg.org/multipage/input.html#valid-e-mail-address) with\n * some enhancements to incorporate more RFC rules (such as rules related to domain names and the\n * lengths of different parts of the address). The main differences from the WHATWG version are:\n *   - Disallow `local-part` to begin or end with a period (`.`).\n *   - Disallow `local-part` length to exceed 64 characters.\n *   - Disallow total address length to exceed 254 characters.\n *\n * See [this commit](https://github.com/angular/angular.js/commit/f3f5cf72e) for more details.\n * @type {?}\n */\nconst EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+(?:\\.[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+)*@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;\n/**\n * \\@description\n * Provides a set of built-in validators that can be used by form controls.\n *\n * A validator is a function that processes a `FormControl` or collection of\n * controls and returns an error map or null. A null map means that validation has passed.\n *\n * @see [Form Validation](/guide/form-validation)\n *\n * \\@publicApi\n */\nclass Validators {\n    /**\n     * \\@description\n     * Validator that requires the control's value to be greater than or equal to the provided number.\n     * The validator exists only as a function and not as a directive.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate against a minimum of 3\n     *\n     * ```typescript\n     * const control = new FormControl(2, Validators.min(3));\n     *\n     * console.log(control.errors); // {min: {min: 3, actual: 2}}\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} min\n     * @return {?} A validator function that returns an error map with the\n     * `min` property if the validation check fails, otherwise `null`.\n     *\n     */\n    static min(min) {\n        return (/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            if (isEmptyInputValue(control.value) || isEmptyInputValue(min)) {\n                return null; // don't validate empty values to allow optional controls\n            }\n            /** @type {?} */\n            const value = parseFloat(control.value);\n            // Controls with NaN values after parsing should be treated as not having a\n            // minimum, per the HTML forms spec: https://www.w3.org/TR/html5/forms.html#attr-input-min\n            return !isNaN(value) && value < min ? { 'min': { 'min': min, 'actual': control.value } } : null;\n        });\n    }\n    /**\n     * \\@description\n     * Validator that requires the control's value to be less than or equal to the provided number.\n     * The validator exists only as a function and not as a directive.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate against a maximum of 15\n     *\n     * ```typescript\n     * const control = new FormControl(16, Validators.max(15));\n     *\n     * console.log(control.errors); // {max: {max: 15, actual: 16}}\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} max\n     * @return {?} A validator function that returns an error map with the\n     * `max` property if the validation check fails, otherwise `null`.\n     *\n     */\n    static max(max) {\n        return (/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            if (isEmptyInputValue(control.value) || isEmptyInputValue(max)) {\n                return null; // don't validate empty values to allow optional controls\n            }\n            /** @type {?} */\n            const value = parseFloat(control.value);\n            // Controls with NaN values after parsing should be treated as not having a\n            // maximum, per the HTML forms spec: https://www.w3.org/TR/html5/forms.html#attr-input-max\n            return !isNaN(value) && value > max ? { 'max': { 'max': max, 'actual': control.value } } : null;\n        });\n    }\n    /**\n     * \\@description\n     * Validator that requires the control have a non-empty value.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate that the field is non-empty\n     *\n     * ```typescript\n     * const control = new FormControl('', Validators.required);\n     *\n     * console.log(control.errors); // {required: true}\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} control\n     * @return {?} An error map with the `required` property\n     * if the validation check fails, otherwise `null`.\n     *\n     */\n    static required(control) {\n        return isEmptyInputValue(control.value) ? { 'required': true } : null;\n    }\n    /**\n     * \\@description\n     * Validator that requires the control's value be true. This validator is commonly\n     * used for required checkboxes.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate that the field value is true\n     *\n     * ```typescript\n     * const control = new FormControl('', Validators.requiredTrue);\n     *\n     * console.log(control.errors); // {required: true}\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} control\n     * @return {?} An error map that contains the `required` property\n     * set to `true` if the validation check fails, otherwise `null`.\n     *\n     */\n    static requiredTrue(control) {\n        return control.value === true ? null : { 'required': true };\n    }\n    /**\n     * \\@description\n     * Validator that requires the control's value pass an email validation test.\n     *\n     * Tests the value using a [regular\n     * expression](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions)\n     * pattern suitable for common usecases. The pattern is based on the definition of a valid email\n     * address in the [WHATWG HTML\n     * specification](https://html.spec.whatwg.org/multipage/input.html#valid-e-mail-address) with\n     * some enhancements to incorporate more RFC rules (such as rules related to domain names and the\n     * lengths of different parts of the address).\n     *\n     * The differences from the WHATWG version include:\n     * - Disallow `local-part` (the part before the `\\@` symbol) to begin or end with a period (`.`).\n     * - Disallow `local-part` to be longer than 64 characters.\n     * - Disallow the whole address to be longer than 254 characters.\n     *\n     * If this pattern does not satisfy your business needs, you can use `Validators.pattern()` to\n     * validate the value against a different pattern.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate that the field matches a valid email pattern\n     *\n     * ```typescript\n     * const control = new FormControl('bad\\@', Validators.email);\n     *\n     * console.log(control.errors); // {email: true}\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} control\n     * @return {?} An error map with the `email` property\n     * if the validation check fails, otherwise `null`.\n     *\n     */\n    static email(control) {\n        if (isEmptyInputValue(control.value)) {\n            return null; // don't validate empty values to allow optional controls\n        }\n        return EMAIL_REGEXP.test(control.value) ? null : { 'email': true };\n    }\n    /**\n     * \\@description\n     * Validator that requires the length of the control's value to be greater than or equal\n     * to the provided minimum length. This validator is also provided by default if you use the\n     * the HTML5 `minlength` attribute. Note that the `minLength` validator is intended to be used\n     * only for types that have a numeric `length` property, such as strings or arrays. The\n     * `minLength` validator logic is also not invoked for values when their `length` property is 0\n     * (for example in case of an empty string or an empty array), to support optional controls. You\n     * can use the standard `required` validator if empty values should not be considered valid.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate that the field has a minimum of 3 characters\n     *\n     * ```typescript\n     * const control = new FormControl('ng', Validators.minLength(3));\n     *\n     * console.log(control.errors); // {minlength: {requiredLength: 3, actualLength: 2}}\n     * ```\n     *\n     * ```html\n     * <input minlength=\"5\">\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} minLength\n     * @return {?} A validator function that returns an error map with the\n     * `minlength` if the validation check fails, otherwise `null`.\n     *\n     */\n    static minLength(minLength) {\n        return (/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            if (isEmptyInputValue(control.value)) {\n                return null; // don't validate empty values to allow optional controls\n            }\n            /** @type {?} */\n            const length = control.value ? control.value.length : 0;\n            return length < minLength ?\n                { 'minlength': { 'requiredLength': minLength, 'actualLength': length } } :\n                null;\n        });\n    }\n    /**\n     * \\@description\n     * Validator that requires the length of the control's value to be less than or equal\n     * to the provided maximum length. This validator is also provided by default if you use the\n     * the HTML5 `maxlength` attribute. Note that the `maxLength` validator is intended to be used\n     * only for types that have a numeric `length` property, such as strings or arrays.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate that the field has maximum of 5 characters\n     *\n     * ```typescript\n     * const control = new FormControl('Angular', Validators.maxLength(5));\n     *\n     * console.log(control.errors); // {maxlength: {requiredLength: 5, actualLength: 7}}\n     * ```\n     *\n     * ```html\n     * <input maxlength=\"5\">\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} maxLength\n     * @return {?} A validator function that returns an error map with the\n     * `maxlength` property if the validation check fails, otherwise `null`.\n     *\n     */\n    static maxLength(maxLength) {\n        return (/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            /** @type {?} */\n            const length = control.value ? control.value.length : 0;\n            return length > maxLength ?\n                { 'maxlength': { 'requiredLength': maxLength, 'actualLength': length } } :\n                null;\n        });\n    }\n    /**\n     * \\@description\n     * Validator that requires the control's value to match a regex pattern. This validator is also\n     * provided by default if you use the HTML5 `pattern` attribute.\n     *\n     * \\@usageNotes\n     *\n     * ### Validate that the field only contains letters or spaces\n     *\n     * ```typescript\n     * const control = new FormControl('1', Validators.pattern('[a-zA-Z ]*'));\n     *\n     * console.log(control.errors); // {pattern: {requiredPattern: '^[a-zA-Z ]*$', actualValue: '1'}}\n     * ```\n     *\n     * ```html\n     * <input pattern=\"[a-zA-Z ]*\">\n     * ```\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} pattern A regular expression to be used as is to test the values, or a string.\n     * If a string is passed, the `^` character is prepended and the `$` character is\n     * appended to the provided string (if not already present), and the resulting regular\n     * expression is used to test the values.\n     *\n     * @return {?} A validator function that returns an error map with the\n     * `pattern` property if the validation check fails, otherwise `null`.\n     *\n     */\n    static pattern(pattern) {\n        if (!pattern)\n            return Validators.nullValidator;\n        /** @type {?} */\n        let regex;\n        /** @type {?} */\n        let regexStr;\n        if (typeof pattern === 'string') {\n            regexStr = '';\n            if (pattern.charAt(0) !== '^')\n                regexStr += '^';\n            regexStr += pattern;\n            if (pattern.charAt(pattern.length - 1) !== '$')\n                regexStr += '$';\n            regex = new RegExp(regexStr);\n        }\n        else {\n            regexStr = pattern.toString();\n            regex = pattern;\n        }\n        return (/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            if (isEmptyInputValue(control.value)) {\n                return null; // don't validate empty values to allow optional controls\n            }\n            /** @type {?} */\n            const value = control.value;\n            return regex.test(value) ? null :\n                { 'pattern': { 'requiredPattern': regexStr, 'actualValue': value } };\n        });\n    }\n    /**\n     * \\@description\n     * Validator that performs no operation.\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} control\n     * @return {?}\n     */\n    static nullValidator(control) {\n        return null;\n    }\n    /**\n     * @param {?} validators\n     * @return {?}\n     */\n    static compose(validators) {\n        if (!validators)\n            return null;\n        /** @type {?} */\n        const presentValidators = (/** @type {?} */ (validators.filter(isPresent)));\n        if (presentValidators.length == 0)\n            return null;\n        return (/**\n         * @param {?} control\n         * @return {?}\n         */\n        function (control) {\n            return _mergeErrors(_executeValidators(control, presentValidators));\n        });\n    }\n    /**\n     * \\@description\n     * Compose multiple async validators into a single function that returns the union\n     * of the individual error objects for the provided control.\n     *\n     * @see `updateValueAndValidity()`\n     *\n     * @param {?} validators\n     * @return {?} A validator function that returns an error map with the\n     * merged error objects of the async validators if the validation check fails, otherwise `null`.\n     *\n     */\n    static composeAsync(validators) {\n        if (!validators)\n            return null;\n        /** @type {?} */\n        const presentValidators = (/** @type {?} */ (validators.filter(isPresent)));\n        if (presentValidators.length == 0)\n            return null;\n        return (/**\n         * @param {?} control\n         * @return {?}\n         */\n        function (control) {\n            /** @type {?} */\n            const observables = _executeAsyncValidators(control, presentValidators).map(toObservable);\n            return forkJoin(observables).pipe(map(_mergeErrors));\n        });\n    }\n}\n/**\n * @param {?} o\n * @return {?}\n */\nfunction isPresent(o) {\n    return o != null;\n}\n/**\n * @param {?} r\n * @return {?}\n */\nfunction toObservable(r) {\n    /** @type {?} */\n    const obs = ɵisPromise(r) ? from(r) : r;\n    if (!(ɵisObservable(obs))) {\n        throw new Error(`Expected validator to return Promise or Observable.`);\n    }\n    return obs;\n}\n/**\n * @param {?} control\n * @param {?} validators\n * @return {?}\n */\nfunction _executeValidators(control, validators) {\n    return validators.map((/**\n     * @param {?} v\n     * @return {?}\n     */\n    v => v(control)));\n}\n/**\n * @param {?} control\n * @param {?} validators\n * @return {?}\n */\nfunction _executeAsyncValidators(control, validators) {\n    return validators.map((/**\n     * @param {?} v\n     * @return {?}\n     */\n    v => v(control)));\n}\n/**\n * @param {?} arrayOfErrors\n * @return {?}\n */\nfunction _mergeErrors(arrayOfErrors) {\n    /** @type {?} */\n    let res = {};\n    // Not using Array.reduce here due to a Chrome 80 bug\n    // https://bugs.chromium.org/p/chromium/issues/detail?id=1049982\n    arrayOfErrors.forEach((/**\n     * @param {?} errors\n     * @return {?}\n     */\n    (errors) => {\n        res = errors != null ? Object.assign(Object.assign({}, (/** @type {?} */ (res))), errors) : (/** @type {?} */ (res));\n    }));\n    return Object.keys(res).length === 0 ? null : res;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/normalize_validator.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @param {?} validator\n * @return {?}\n */\nfunction normalizeValidator(validator) {\n    if (((/** @type {?} */ (validator))).validate) {\n        return (/**\n         * @param {?} c\n         * @return {?}\n         */\n        (c) => ((/** @type {?} */ (validator))).validate(c));\n    }\n    else {\n        return (/** @type {?} */ (validator));\n    }\n}\n/**\n * @param {?} validator\n * @return {?}\n */\nfunction normalizeAsyncValidator(validator) {\n    if (((/** @type {?} */ (validator))).validate) {\n        return (/**\n         * @param {?} c\n         * @return {?}\n         */\n        (c) => ((/** @type {?} */ (validator))).validate(c));\n    }\n    else {\n        return (/** @type {?} */ (validator));\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/number_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst NUMBER_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => NumberValueAccessor)),\n    multi: true\n};\n/**\n * \\@description\n * The `ControlValueAccessor` for writing a number value and listening to number input changes.\n * The value accessor is used by the `FormControlDirective`, `FormControlName`, and  `NgModel`\n * directives.\n *\n * \\@usageNotes\n *\n * ### Using a number input with a reactive form.\n *\n * The following example shows how to use a number input with a reactive form.\n *\n * ```ts\n * const totalCountControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"number\" [formControl]=\"totalCountControl\">\n * ```\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass NumberValueAccessor {\n    /**\n     * @param {?} _renderer\n     * @param {?} _elementRef\n     */\n    constructor(_renderer, _elementRef) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        /**\n         * \\@description\n         * The registered callback function called when a change or input event occurs on the input\n         * element.\n         */\n        this.onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => { });\n        /**\n         * \\@description\n         * The registered callback function called when a blur event occurs on the input element.\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n    }\n    /**\n     * Sets the \"value\" property on the input element.\n     *\n     * @param {?} value The checked value\n     * @return {?}\n     */\n    writeValue(value) {\n        // The value needs to be normalized for IE9, otherwise it is set to 'null' when null\n        /** @type {?} */\n        const normalizedValue = value == null ? '' : value;\n        this._renderer.setProperty(this._elementRef.nativeElement, 'value', normalizedValue);\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control value changes.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this.onChange = (/**\n         * @param {?} value\n         * @return {?}\n         */\n        (value) => {\n            fn(value == '' ? null : parseFloat(value));\n        });\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control is touched.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the input element.\n     *\n     * @param {?} isDisabled The disabled value\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n    }\n}\nNumberValueAccessor.ɵfac = function NumberValueAccessor_Factory(t) { return new (t || NumberValueAccessor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef)); };\nNumberValueAccessor.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NumberValueAccessor, selectors: [[\"input\", \"type\", \"number\", \"formControlName\", \"\"], [\"input\", \"type\", \"number\", \"formControl\", \"\"], [\"input\", \"type\", \"number\", \"ngModel\", \"\"]], hostBindings: function NumberValueAccessor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"change\", function NumberValueAccessor_change_HostBindingHandler($event) { return ctx.onChange($event.target.value); })(\"input\", function NumberValueAccessor_input_HostBindingHandler($event) { return ctx.onChange($event.target.value); })(\"blur\", function NumberValueAccessor_blur_HostBindingHandler() { return ctx.onTouched(); });\n    } }, features: [ɵngcc0.ɵɵProvidersFeature([NUMBER_VALUE_ACCESSOR])] });\n/** @nocollapse */\nNumberValueAccessor.ctorParameters = () => [\n    { type: Renderer2 },\n    { type: ElementRef }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NumberValueAccessor, [{\n        type: Directive,\n        args: [{\n                selector: 'input[type=number][formControlName],input[type=number][formControl],input[type=number][ngModel]',\n                host: {\n                    '(change)': 'onChange($event.target.value)',\n                    '(input)': 'onChange($event.target.value)',\n                    '(blur)': 'onTouched()'\n                },\n                providers: [NUMBER_VALUE_ACCESSOR]\n            }]\n    }], function () { return [{ type: ɵngcc0.Renderer2 }, { type: ɵngcc0.ElementRef }]; }, null); })();\nif (false) {\n    /**\n     * \\@description\n     * The registered callback function called when a change or input event occurs on the input\n     * element.\n     * @type {?}\n     */\n    NumberValueAccessor.prototype.onChange;\n    /**\n     * \\@description\n     * The registered callback function called when a blur event occurs on the input element.\n     * @type {?}\n     */\n    NumberValueAccessor.prototype.onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    NumberValueAccessor.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    NumberValueAccessor.prototype._elementRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/radio_control_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst RADIO_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => RadioControlValueAccessor)),\n    multi: true\n};\n/**\n * \\@description\n * Class used by Angular to track radio buttons. For internal use only.\n */\nclass RadioControlRegistry {\n    constructor() {\n        this._accessors = [];\n    }\n    /**\n     * \\@description\n     * Adds a control to the internal registry. For internal use only.\n     * @param {?} control\n     * @param {?} accessor\n     * @return {?}\n     */\n    add(control, accessor) {\n        this._accessors.push([control, accessor]);\n    }\n    /**\n     * \\@description\n     * Removes a control from the internal registry. For internal use only.\n     * @param {?} accessor\n     * @return {?}\n     */\n    remove(accessor) {\n        for (let i = this._accessors.length - 1; i >= 0; --i) {\n            if (this._accessors[i][1] === accessor) {\n                this._accessors.splice(i, 1);\n                return;\n            }\n        }\n    }\n    /**\n     * \\@description\n     * Selects a radio button. For internal use only.\n     * @param {?} accessor\n     * @return {?}\n     */\n    select(accessor) {\n        this._accessors.forEach((/**\n         * @param {?} c\n         * @return {?}\n         */\n        (c) => {\n            if (this._isSameGroup(c, accessor) && c[1] !== accessor) {\n                c[1].fireUncheck(accessor.value);\n            }\n        }));\n    }\n    /**\n     * @private\n     * @param {?} controlPair\n     * @param {?} accessor\n     * @return {?}\n     */\n    _isSameGroup(controlPair, accessor) {\n        if (!controlPair[0].control)\n            return false;\n        return controlPair[0]._parent === accessor._control._parent &&\n            controlPair[1].name === accessor.name;\n    }\n}\nRadioControlRegistry.ɵfac = function RadioControlRegistry_Factory(t) { return new (t || RadioControlRegistry)(); };\nRadioControlRegistry.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: RadioControlRegistry, factory: RadioControlRegistry.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(RadioControlRegistry, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    RadioControlRegistry.prototype._accessors;\n}\n/**\n * \\@description\n * The `ControlValueAccessor` for writing radio control values and listening to radio control\n * changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * \\@usageNotes\n *\n * ### Using radio buttons with reactive form directives\n *\n * The follow example shows how to use radio buttons in a reactive form. When using radio buttons in\n * a reactive form, radio buttons in the same group should have the same `formControlName`.\n * Providing a `name` attribute is optional.\n *\n * {\\@example forms/ts/reactiveRadioButtons/reactive_radio_button_example.ts region='Reactive'}\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass RadioControlValueAccessor {\n    /**\n     * @param {?} _renderer\n     * @param {?} _elementRef\n     * @param {?} _registry\n     * @param {?} _injector\n     */\n    constructor(_renderer, _elementRef, _registry, _injector) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        this._registry = _registry;\n        this._injector = _injector;\n        /**\n         * \\@description\n         * The registered callback function called when a change event occurs on the input element.\n         */\n        this.onChange = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * \\@description\n         * The registered callback function called when a blur event occurs on the input element.\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n    }\n    /**\n     * \\@description\n     * A lifecycle method called when the directive is initialized. For internal use only.\n     * @return {?}\n     */\n    ngOnInit() {\n        this._control = this._injector.get(NgControl);\n        this._checkName();\n        this._registry.add(this._control, this);\n    }\n    /**\n     * \\@description\n     * Lifecycle method called before the directive's instance is destroyed. For internal use only.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._registry.remove(this);\n    }\n    /**\n     * \\@description\n     * Sets the \"checked\" property value on the radio input element.\n     *\n     * @param {?} value The checked value\n     * @return {?}\n     */\n    writeValue(value) {\n        this._state = value === this.value;\n        this._renderer.setProperty(this._elementRef.nativeElement, 'checked', this._state);\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control value changes.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._fn = fn;\n        this.onChange = (/**\n         * @return {?}\n         */\n        () => {\n            fn(this.value);\n            this._registry.select(this);\n        });\n    }\n    /**\n     * Sets the \"value\" on the radio input element and unchecks it.\n     *\n     * @param {?} value\n     * @return {?}\n     */\n    fireUncheck(value) {\n        this.writeValue(value);\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control is touched.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the input element.\n     *\n     * @param {?} isDisabled The disabled value\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkName() {\n        if (this.name && this.formControlName && this.name !== this.formControlName) {\n            this._throwNameError();\n        }\n        if (!this.name && this.formControlName)\n            this.name = this.formControlName;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _throwNameError() {\n        throw new Error(`\n      If you define both a name and a formControlName attribute on your radio button, their values\n      must match. Ex: <input type=\"radio\" formControlName=\"food\" name=\"food\">\n    `);\n    }\n}\nRadioControlValueAccessor.ɵfac = function RadioControlValueAccessor_Factory(t) { return new (t || RadioControlValueAccessor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(RadioControlRegistry), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Injector)); };\nRadioControlValueAccessor.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: RadioControlValueAccessor, selectors: [[\"input\", \"type\", \"radio\", \"formControlName\", \"\"], [\"input\", \"type\", \"radio\", \"formControl\", \"\"], [\"input\", \"type\", \"radio\", \"ngModel\", \"\"]], hostBindings: function RadioControlValueAccessor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"change\", function RadioControlValueAccessor_change_HostBindingHandler() { return ctx.onChange(); })(\"blur\", function RadioControlValueAccessor_blur_HostBindingHandler() { return ctx.onTouched(); });\n    } }, inputs: { name: \"name\", formControlName: \"formControlName\", value: \"value\" }, features: [ɵngcc0.ɵɵProvidersFeature([RADIO_VALUE_ACCESSOR])] });\n/** @nocollapse */\nRadioControlValueAccessor.ctorParameters = () => [\n    { type: Renderer2 },\n    { type: ElementRef },\n    { type: RadioControlRegistry },\n    { type: Injector }\n];\nRadioControlValueAccessor.propDecorators = {\n    name: [{ type: Input }],\n    formControlName: [{ type: Input }],\n    value: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(RadioControlValueAccessor, [{\n        type: Directive,\n        args: [{\n                selector: 'input[type=radio][formControlName],input[type=radio][formControl],input[type=radio][ngModel]',\n                host: { '(change)': 'onChange()', '(blur)': 'onTouched()' },\n                providers: [RADIO_VALUE_ACCESSOR]\n            }]\n    }], function () { return [{ type: ɵngcc0.Renderer2 }, { type: ɵngcc0.ElementRef }, { type: RadioControlRegistry }, { type: ɵngcc0.Injector }]; }, { name: [{\n            type: Input\n        }], formControlName: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype._state;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype._control;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype._fn;\n    /**\n     * \\@description\n     * The registered callback function called when a change event occurs on the input element.\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype.onChange;\n    /**\n     * \\@description\n     * The registered callback function called when a blur event occurs on the input element.\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype.onTouched;\n    /**\n     * \\@description\n     * Tracks the name of the radio input element.\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype.name;\n    /**\n     * \\@description\n     * Tracks the name of the `FormControl` bound to the directive. The name corresponds\n     * to a key in the parent `FormGroup` or `FormArray`.\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype.formControlName;\n    /**\n     * \\@description\n     * Tracks the value of the radio input element\n     * @type {?}\n     */\n    RadioControlValueAccessor.prototype.value;\n    /**\n     * @type {?}\n     * @private\n     */\n    RadioControlValueAccessor.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    RadioControlValueAccessor.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    RadioControlValueAccessor.prototype._registry;\n    /**\n     * @type {?}\n     * @private\n     */\n    RadioControlValueAccessor.prototype._injector;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/range_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst RANGE_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => RangeValueAccessor)),\n    multi: true\n};\n/**\n * \\@description\n * The `ControlValueAccessor` for writing a range value and listening to range input changes.\n * The value accessor is used by the `FormControlDirective`, `FormControlName`, and  `NgModel`\n * directives.\n *\n * \\@usageNotes\n *\n * ### Using a range input with a reactive form\n *\n * The following example shows how to use a range input with a reactive form.\n *\n * ```ts\n * const ageControl = new FormControl();\n * ```\n *\n * ```\n * <input type=\"range\" [formControl]=\"ageControl\">\n * ```\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass RangeValueAccessor {\n    /**\n     * @param {?} _renderer\n     * @param {?} _elementRef\n     */\n    constructor(_renderer, _elementRef) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        /**\n         * \\@description\n         * The registered callback function called when a change or input event occurs on the input\n         * element.\n         */\n        this.onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => { });\n        /**\n         * \\@description\n         * The registered callback function called when a blur event occurs on the input element.\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n    }\n    /**\n     * Sets the \"value\" property on the input element.\n     *\n     * @param {?} value The checked value\n     * @return {?}\n     */\n    writeValue(value) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'value', parseFloat(value));\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control value changes.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this.onChange = (/**\n         * @param {?} value\n         * @return {?}\n         */\n        (value) => {\n            fn(value == '' ? null : parseFloat(value));\n        });\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control is touched.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the range input element.\n     *\n     * @param {?} isDisabled The disabled value\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n    }\n}\nRangeValueAccessor.ɵfac = function RangeValueAccessor_Factory(t) { return new (t || RangeValueAccessor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef)); };\nRangeValueAccessor.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: RangeValueAccessor, selectors: [[\"input\", \"type\", \"range\", \"formControlName\", \"\"], [\"input\", \"type\", \"range\", \"formControl\", \"\"], [\"input\", \"type\", \"range\", \"ngModel\", \"\"]], hostBindings: function RangeValueAccessor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"change\", function RangeValueAccessor_change_HostBindingHandler($event) { return ctx.onChange($event.target.value); })(\"input\", function RangeValueAccessor_input_HostBindingHandler($event) { return ctx.onChange($event.target.value); })(\"blur\", function RangeValueAccessor_blur_HostBindingHandler() { return ctx.onTouched(); });\n    } }, features: [ɵngcc0.ɵɵProvidersFeature([RANGE_VALUE_ACCESSOR])] });\n/** @nocollapse */\nRangeValueAccessor.ctorParameters = () => [\n    { type: Renderer2 },\n    { type: ElementRef }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(RangeValueAccessor, [{\n        type: Directive,\n        args: [{\n                selector: 'input[type=range][formControlName],input[type=range][formControl],input[type=range][ngModel]',\n                host: {\n                    '(change)': 'onChange($event.target.value)',\n                    '(input)': 'onChange($event.target.value)',\n                    '(blur)': 'onTouched()'\n                },\n                providers: [RANGE_VALUE_ACCESSOR]\n            }]\n    }], function () { return [{ type: ɵngcc0.Renderer2 }, { type: ɵngcc0.ElementRef }]; }, null); })();\nif (false) {\n    /**\n     * \\@description\n     * The registered callback function called when a change or input event occurs on the input\n     * element.\n     * @type {?}\n     */\n    RangeValueAccessor.prototype.onChange;\n    /**\n     * \\@description\n     * The registered callback function called when a blur event occurs on the input element.\n     * @type {?}\n     */\n    RangeValueAccessor.prototype.onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    RangeValueAccessor.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    RangeValueAccessor.prototype._elementRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/error_examples.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst FormErrorExamples = {\n    formControlName: `\n    <div [formGroup]=\"myGroup\">\n      <input formControlName=\"firstName\">\n    </div>\n\n    In your class:\n\n    this.myGroup = new FormGroup({\n       firstName: new FormControl()\n    });`,\n    formGroupName: `\n    <div [formGroup]=\"myGroup\">\n       <div formGroupName=\"person\">\n          <input formControlName=\"firstName\">\n       </div>\n    </div>\n\n    In your class:\n\n    this.myGroup = new FormGroup({\n       person: new FormGroup({ firstName: new FormControl() })\n    });`,\n    formArrayName: `\n    <div [formGroup]=\"myGroup\">\n      <div formArrayName=\"cities\">\n        <div *ngFor=\"let city of cityArray.controls; index as i\">\n          <input [formControlName]=\"i\">\n        </div>\n      </div>\n    </div>\n\n    In your class:\n\n    this.cityArray = new FormArray([new FormControl('SF')]);\n    this.myGroup = new FormGroup({\n      cities: this.cityArray\n    });`,\n    ngModelGroup: `\n    <form>\n       <div ngModelGroup=\"person\">\n          <input [(ngModel)]=\"person.name\" name=\"firstName\">\n       </div>\n    </form>`,\n    ngModelWithFormGroup: `\n    <div [formGroup]=\"myGroup\">\n       <input formControlName=\"firstName\">\n       <input [(ngModel)]=\"showMoreControls\" [ngModelOptions]=\"{standalone: true}\">\n    </div>\n  `\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/reactive_errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass ReactiveErrors {\n    /**\n     * @return {?}\n     */\n    static controlParentException() {\n        throw new Error(`formControlName must be used with a parent formGroup directive.  You'll want to add a formGroup\n       directive and pass it an existing FormGroup instance (you can create one in your class).\n\n      Example:\n\n      ${FormErrorExamples.formControlName}`);\n    }\n    /**\n     * @return {?}\n     */\n    static ngModelGroupException() {\n        throw new Error(`formControlName cannot be used with an ngModelGroup parent. It is only compatible with parents\n       that also have a \"form\" prefix: formGroupName, formArrayName, or formGroup.\n\n       Option 1:  Update the parent to be formGroupName (reactive form strategy)\n\n        ${FormErrorExamples.formGroupName}\n\n        Option 2: Use ngModel instead of formControlName (template-driven strategy)\n\n        ${FormErrorExamples.ngModelGroup}`);\n    }\n    /**\n     * @return {?}\n     */\n    static missingFormException() {\n        throw new Error(`formGroup expects a FormGroup instance. Please pass one in.\n\n       Example:\n\n       ${FormErrorExamples.formControlName}`);\n    }\n    /**\n     * @return {?}\n     */\n    static groupParentException() {\n        throw new Error(`formGroupName must be used with a parent formGroup directive.  You'll want to add a formGroup\n      directive and pass it an existing FormGroup instance (you can create one in your class).\n\n      Example:\n\n      ${FormErrorExamples.formGroupName}`);\n    }\n    /**\n     * @return {?}\n     */\n    static arrayParentException() {\n        throw new Error(`formArrayName must be used with a parent formGroup directive.  You'll want to add a formGroup\n       directive and pass it an existing FormGroup instance (you can create one in your class).\n\n        Example:\n\n        ${FormErrorExamples.formArrayName}`);\n    }\n    /**\n     * @return {?}\n     */\n    static disabledAttrWarning() {\n        console.warn(`\n      It looks like you're using the disabled attribute with a reactive form directive. If you set disabled to true\n      when you set up this control in your component class, the disabled attribute will actually be set in the DOM for\n      you. We recommend using this approach to avoid 'changed after checked' errors.\n       \n      Example: \n      form = new FormGroup({\n        first: new FormControl({value: 'Nancy', disabled: true}, Validators.required),\n        last: new FormControl('Drew', Validators.required)\n      });\n    `);\n    }\n    /**\n     * @param {?} directiveName\n     * @return {?}\n     */\n    static ngModelWarning(directiveName) {\n        console.warn(`\n    It looks like you're using ngModel on the same form field as ${directiveName}. \n    Support for using the ngModel input property and ngModelChange event with \n    reactive form directives has been deprecated in Angular v6 and will be removed \n    in Angular v7.\n    \n    For more information on this, see our API docs here:\n    https://angular.io/api/forms/${directiveName === 'formControl' ? 'FormControlDirective' :\n            'FormControlName'}#use-with-ngmodel\n    `);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/select_control_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst SELECT_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => SelectControlValueAccessor)),\n    multi: true\n};\n/**\n * @param {?} id\n * @param {?} value\n * @return {?}\n */\nfunction _buildValueString(id, value) {\n    if (id == null)\n        return `${value}`;\n    if (value && typeof value === 'object')\n        value = 'Object';\n    return `${id}: ${value}`.slice(0, 50);\n}\n/**\n * @param {?} valueString\n * @return {?}\n */\nfunction _extractId(valueString) {\n    return valueString.split(':')[0];\n}\n/**\n * \\@description\n * The `ControlValueAccessor` for writing select control values and listening to select control\n * changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * \\@usageNotes\n *\n * ### Using select controls in a reactive form\n *\n * The following examples show how to use a select control in a reactive form.\n *\n * {\\@example forms/ts/reactiveSelectControl/reactive_select_control_example.ts region='Component'}\n *\n * ### Using select controls in a template-driven form\n *\n * To use a select in a template-driven form, simply add an `ngModel` and a `name`\n * attribute to the main `<select>` tag.\n *\n * {\\@example forms/ts/selectControl/select_control_example.ts region='Component'}\n *\n * ### Customizing option selection\n *\n * Angular uses object identity to select option. It's possible for the identities of items\n * to change while the data does not. This can happen, for example, if the items are produced\n * from an RPC to the server, and that RPC is re-run. Even if the data hasn't changed, the\n * second response will produce objects with different identities.\n *\n * To customize the default option comparison algorithm, `<select>` supports `compareWith` input.\n * `compareWith` takes a **function** which has two arguments: `option1` and `option2`.\n * If `compareWith` is given, Angular selects option by the return value of the function.\n *\n * ```ts\n * const selectedCountriesControl = new FormControl();\n * ```\n *\n * ```\n * <select [compareWith]=\"compareFn\"  [formControl]=\"selectedCountriesControl\">\n *     <option *ngFor=\"let country of countries\" [ngValue]=\"country\">\n *         {{country.name}}\n *     </option>\n * </select>\n *\n * compareFn(c1: Country, c2: Country): boolean {\n *     return c1 && c2 ? c1.id === c2.id : c1 === c2;\n * }\n * ```\n *\n * **Note:** We listen to the 'change' event because 'input' events aren't fired\n * for selects in Firefox and IE:\n * https://bugzilla.mozilla.org/show_bug.cgi?id=1024350\n * https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/4660045/\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass SelectControlValueAccessor {\n    /**\n     * @param {?} _renderer\n     * @param {?} _elementRef\n     */\n    constructor(_renderer, _elementRef) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        /**\n         * \\@internal\n         */\n        this._optionMap = new Map();\n        /**\n         * \\@internal\n         */\n        this._idCounter = 0;\n        /**\n         * \\@description\n         * The registered callback function called when a change event occurs on the input element.\n         */\n        this.onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => { });\n        /**\n         * \\@description\n         * The registered callback function called when a blur event occurs on the input element.\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        this._compareWith = ɵlooseIdentical;\n    }\n    /**\n     * \\@description\n     * Tracks the option comparison algorithm for tracking identities when\n     * checking for changes.\n     * @param {?} fn\n     * @return {?}\n     */\n    set compareWith(fn) {\n        if (typeof fn !== 'function') {\n            throw new Error(`compareWith must be a function, but received ${JSON.stringify(fn)}`);\n        }\n        this._compareWith = fn;\n    }\n    /**\n     * Sets the \"value\" property on the input element. The \"selectedIndex\"\n     * property is also set if an ID is provided on the option element.\n     *\n     * @param {?} value The checked value\n     * @return {?}\n     */\n    writeValue(value) {\n        this.value = value;\n        /** @type {?} */\n        const id = this._getOptionId(value);\n        if (id == null) {\n            this._renderer.setProperty(this._elementRef.nativeElement, 'selectedIndex', -1);\n        }\n        /** @type {?} */\n        const valueString = _buildValueString(id, value);\n        this._renderer.setProperty(this._elementRef.nativeElement, 'value', valueString);\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control value changes.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this.onChange = (/**\n         * @param {?} valueString\n         * @return {?}\n         */\n        (valueString) => {\n            this.value = this._getOptionValue(valueString);\n            fn(this.value);\n        });\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control is touched.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the select input element.\n     *\n     * @param {?} isDisabled The disabled value\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _registerOption() {\n        return (this._idCounter++).toString();\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _getOptionId(value) {\n        for (const id of Array.from(this._optionMap.keys())) {\n            if (this._compareWith(this._optionMap.get(id), value))\n                return id;\n        }\n        return null;\n    }\n    /**\n     * \\@internal\n     * @param {?} valueString\n     * @return {?}\n     */\n    _getOptionValue(valueString) {\n        /** @type {?} */\n        const id = _extractId(valueString);\n        return this._optionMap.has(id) ? this._optionMap.get(id) : valueString;\n    }\n}\nSelectControlValueAccessor.ɵfac = function SelectControlValueAccessor_Factory(t) { return new (t || SelectControlValueAccessor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef)); };\nSelectControlValueAccessor.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: SelectControlValueAccessor, selectors: [[\"select\", \"formControlName\", \"\", 3, \"multiple\", \"\"], [\"select\", \"formControl\", \"\", 3, \"multiple\", \"\"], [\"select\", \"ngModel\", \"\", 3, \"multiple\", \"\"]], hostBindings: function SelectControlValueAccessor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"change\", function SelectControlValueAccessor_change_HostBindingHandler($event) { return ctx.onChange($event.target.value); })(\"blur\", function SelectControlValueAccessor_blur_HostBindingHandler() { return ctx.onTouched(); });\n    } }, inputs: { compareWith: \"compareWith\" }, features: [ɵngcc0.ɵɵProvidersFeature([SELECT_VALUE_ACCESSOR])] });\n/** @nocollapse */\nSelectControlValueAccessor.ctorParameters = () => [\n    { type: Renderer2 },\n    { type: ElementRef }\n];\nSelectControlValueAccessor.propDecorators = {\n    compareWith: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(SelectControlValueAccessor, [{\n        type: Directive,\n        args: [{\n                selector: 'select:not([multiple])[formControlName],select:not([multiple])[formControl],select:not([multiple])[ngModel]',\n                host: { '(change)': 'onChange($event.target.value)', '(blur)': 'onTouched()' },\n                providers: [SELECT_VALUE_ACCESSOR]\n            }]\n    }], function () { return [{ type: ɵngcc0.Renderer2 }, { type: ɵngcc0.ElementRef }]; }, { compareWith: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    SelectControlValueAccessor.prototype.value;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    SelectControlValueAccessor.prototype._optionMap;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    SelectControlValueAccessor.prototype._idCounter;\n    /**\n     * \\@description\n     * The registered callback function called when a change event occurs on the input element.\n     * @type {?}\n     */\n    SelectControlValueAccessor.prototype.onChange;\n    /**\n     * \\@description\n     * The registered callback function called when a blur event occurs on the input element.\n     * @type {?}\n     */\n    SelectControlValueAccessor.prototype.onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectControlValueAccessor.prototype._compareWith;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectControlValueAccessor.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectControlValueAccessor.prototype._elementRef;\n}\n/**\n * \\@description\n * Marks `<option>` as dynamic, so Angular can be notified when options change.\n *\n * @see `SelectControlValueAccessor`\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass NgSelectOption {\n    /**\n     * @param {?} _element\n     * @param {?} _renderer\n     * @param {?} _select\n     */\n    constructor(_element, _renderer, _select) {\n        this._element = _element;\n        this._renderer = _renderer;\n        this._select = _select;\n        if (this._select)\n            this.id = this._select._registerOption();\n    }\n    /**\n     * \\@description\n     * Tracks the value bound to the option element. Unlike the value binding,\n     * ngValue supports binding to objects.\n     * @param {?} value\n     * @return {?}\n     */\n    set ngValue(value) {\n        if (this._select == null)\n            return;\n        this._select._optionMap.set(this.id, value);\n        this._setElementValue(_buildValueString(this.id, value));\n        this._select.writeValue(this._select.value);\n    }\n    /**\n     * \\@description\n     * Tracks simple string values bound to the option element.\n     * For objects, use the `ngValue` input binding.\n     * @param {?} value\n     * @return {?}\n     */\n    set value(value) {\n        this._setElementValue(value);\n        if (this._select)\n            this._select.writeValue(this._select.value);\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _setElementValue(value) {\n        this._renderer.setProperty(this._element.nativeElement, 'value', value);\n    }\n    /**\n     * \\@description\n     * Lifecycle method called before the directive's instance is destroyed. For internal use only.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._select) {\n            this._select._optionMap.delete(this.id);\n            this._select.writeValue(this._select.value);\n        }\n    }\n}\nNgSelectOption.ɵfac = function NgSelectOption_Factory(t) { return new (t || NgSelectOption)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(SelectControlValueAccessor, 9)); };\nNgSelectOption.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgSelectOption, selectors: [[\"option\"]], inputs: { ngValue: \"ngValue\", value: \"value\" } });\n/** @nocollapse */\nNgSelectOption.ctorParameters = () => [\n    { type: ElementRef },\n    { type: Renderer2 },\n    { type: SelectControlValueAccessor, decorators: [{ type: Optional }, { type: Host }] }\n];\nNgSelectOption.propDecorators = {\n    ngValue: [{ type: Input, args: ['ngValue',] }],\n    value: [{ type: Input, args: ['value',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgSelectOption, [{\n        type: Directive,\n        args: [{ selector: 'option' }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.Renderer2 }, { type: SelectControlValueAccessor, decorators: [{\n                type: Optional\n            }, {\n                type: Host\n            }] }]; }, { ngValue: [{\n            type: Input,\n            args: ['ngValue']\n        }], value: [{\n            type: Input,\n            args: ['value']\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * ID of the option element\n     * @type {?}\n     */\n    NgSelectOption.prototype.id;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSelectOption.prototype._element;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSelectOption.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgSelectOption.prototype._select;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/select_multiple_control_value_accessor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst SELECT_MULTIPLE_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => SelectMultipleControlValueAccessor)),\n    multi: true\n};\n/**\n * @param {?} id\n * @param {?} value\n * @return {?}\n */\nfunction _buildValueString$1(id, value) {\n    if (id == null)\n        return `${value}`;\n    if (typeof value === 'string')\n        value = `'${value}'`;\n    if (value && typeof value === 'object')\n        value = 'Object';\n    return `${id}: ${value}`.slice(0, 50);\n}\n/**\n * @param {?} valueString\n * @return {?}\n */\nfunction _extractId$1(valueString) {\n    return valueString.split(':')[0];\n}\n/**\n * Mock interface for HTML Options\n * @record\n */\nfunction HTMLOption() { }\nif (false) {\n    /** @type {?} */\n    HTMLOption.prototype.value;\n    /** @type {?} */\n    HTMLOption.prototype.selected;\n}\n/**\n * Mock interface for HTMLCollection\n * @abstract\n */\nclass HTMLCollection {\n}\nif (false) {\n    /** @type {?} */\n    HTMLCollection.prototype.length;\n    /**\n     * @abstract\n     * @param {?} _\n     * @return {?}\n     */\n    HTMLCollection.prototype.item = function (_) { };\n}\n/**\n * \\@description\n * The `ControlValueAccessor` for writing multi-select control values and listening to multi-select\n * control changes. The value accessor is used by the `FormControlDirective`, `FormControlName`, and\n * `NgModel` directives.\n *\n * @see `SelectControlValueAccessor`\n *\n * \\@usageNotes\n *\n * ### Using a multi-select control\n *\n * The follow example shows you how to use a multi-select control with a reactive form.\n *\n * ```ts\n * const countryControl = new FormControl();\n * ```\n *\n * ```\n * <select multiple name=\"countries\" [formControl]=\"countryControl\">\n *   <option *ngFor=\"let country of countries\" [ngValue]=\"country\">\n *     {{ country.name }}\n *   </option>\n * </select>\n * ```\n *\n * ### Customizing option selection\n *\n * To customize the default option comparison algorithm, `<select>` supports `compareWith` input.\n * See the `SelectControlValueAccessor` for usage.\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass SelectMultipleControlValueAccessor {\n    /**\n     * @param {?} _renderer\n     * @param {?} _elementRef\n     */\n    constructor(_renderer, _elementRef) {\n        this._renderer = _renderer;\n        this._elementRef = _elementRef;\n        /**\n         * \\@internal\n         */\n        this._optionMap = new Map();\n        /**\n         * \\@internal\n         */\n        this._idCounter = 0;\n        /**\n         * \\@description\n         * The registered callback function called when a change event occurs on the input element.\n         */\n        this.onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => { });\n        /**\n         * \\@description\n         * The registered callback function called when a blur event occurs on the input element.\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        this._compareWith = ɵlooseIdentical;\n    }\n    /**\n     * \\@description\n     * Tracks the option comparison algorithm for tracking identities when\n     * checking for changes.\n     * @param {?} fn\n     * @return {?}\n     */\n    set compareWith(fn) {\n        if (typeof fn !== 'function') {\n            throw new Error(`compareWith must be a function, but received ${JSON.stringify(fn)}`);\n        }\n        this._compareWith = fn;\n    }\n    /**\n     * \\@description\n     * Sets the \"value\" property on one or of more\n     * of the select's options.\n     *\n     * @param {?} value The value\n     * @return {?}\n     */\n    writeValue(value) {\n        this.value = value;\n        /** @type {?} */\n        let optionSelectedStateSetter;\n        if (Array.isArray(value)) {\n            // convert values to ids\n            /** @type {?} */\n            const ids = value.map((/**\n             * @param {?} v\n             * @return {?}\n             */\n            (v) => this._getOptionId(v)));\n            optionSelectedStateSetter = (/**\n             * @param {?} opt\n             * @param {?} o\n             * @return {?}\n             */\n            (opt, o) => {\n                opt._setSelected(ids.indexOf(o.toString()) > -1);\n            });\n        }\n        else {\n            optionSelectedStateSetter = (/**\n             * @param {?} opt\n             * @param {?} o\n             * @return {?}\n             */\n            (opt, o) => {\n                opt._setSelected(false);\n            });\n        }\n        this._optionMap.forEach(optionSelectedStateSetter);\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control value changes\n     * and writes an array of the selected options.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this.onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => {\n            /** @type {?} */\n            const selected = [];\n            if (_.hasOwnProperty('selectedOptions')) {\n                /** @type {?} */\n                const options = _.selectedOptions;\n                for (let i = 0; i < options.length; i++) {\n                    /** @type {?} */\n                    const opt = options.item(i);\n                    /** @type {?} */\n                    const val = this._getOptionValue(opt.value);\n                    selected.push(val);\n                }\n            }\n            // Degrade on IE\n            else {\n                /** @type {?} */\n                const options = (/** @type {?} */ (_.options));\n                for (let i = 0; i < options.length; i++) {\n                    /** @type {?} */\n                    const opt = options.item(i);\n                    if (opt.selected) {\n                        /** @type {?} */\n                        const val = this._getOptionValue(opt.value);\n                        selected.push(val);\n                    }\n                }\n            }\n            this.value = selected;\n            fn(selected);\n        });\n    }\n    /**\n     * \\@description\n     * Registers a function called when the control is touched.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the \"disabled\" property on the select input element.\n     *\n     * @param {?} isDisabled The disabled value\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this._renderer.setProperty(this._elementRef.nativeElement, 'disabled', isDisabled);\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _registerOption(value) {\n        /** @type {?} */\n        const id = (this._idCounter++).toString();\n        this._optionMap.set(id, value);\n        return id;\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _getOptionId(value) {\n        for (const id of Array.from(this._optionMap.keys())) {\n            if (this._compareWith((/** @type {?} */ (this._optionMap.get(id)))._value, value))\n                return id;\n        }\n        return null;\n    }\n    /**\n     * \\@internal\n     * @param {?} valueString\n     * @return {?}\n     */\n    _getOptionValue(valueString) {\n        /** @type {?} */\n        const id = _extractId$1(valueString);\n        return this._optionMap.has(id) ? (/** @type {?} */ (this._optionMap.get(id)))._value : valueString;\n    }\n}\nSelectMultipleControlValueAccessor.ɵfac = function SelectMultipleControlValueAccessor_Factory(t) { return new (t || SelectMultipleControlValueAccessor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef)); };\nSelectMultipleControlValueAccessor.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: SelectMultipleControlValueAccessor, selectors: [[\"select\", \"multiple\", \"\", \"formControlName\", \"\"], [\"select\", \"multiple\", \"\", \"formControl\", \"\"], [\"select\", \"multiple\", \"\", \"ngModel\", \"\"]], hostBindings: function SelectMultipleControlValueAccessor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"change\", function SelectMultipleControlValueAccessor_change_HostBindingHandler($event) { return ctx.onChange($event.target); })(\"blur\", function SelectMultipleControlValueAccessor_blur_HostBindingHandler() { return ctx.onTouched(); });\n    } }, inputs: { compareWith: \"compareWith\" }, features: [ɵngcc0.ɵɵProvidersFeature([SELECT_MULTIPLE_VALUE_ACCESSOR])] });\n/** @nocollapse */\nSelectMultipleControlValueAccessor.ctorParameters = () => [\n    { type: Renderer2 },\n    { type: ElementRef }\n];\nSelectMultipleControlValueAccessor.propDecorators = {\n    compareWith: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(SelectMultipleControlValueAccessor, [{\n        type: Directive,\n        args: [{\n                selector: 'select[multiple][formControlName],select[multiple][formControl],select[multiple][ngModel]',\n                host: { '(change)': 'onChange($event.target)', '(blur)': 'onTouched()' },\n                providers: [SELECT_MULTIPLE_VALUE_ACCESSOR]\n            }]\n    }], function () { return [{ type: ɵngcc0.Renderer2 }, { type: ɵngcc0.ElementRef }]; }, { compareWith: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * The current value\n     * @type {?}\n     */\n    SelectMultipleControlValueAccessor.prototype.value;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    SelectMultipleControlValueAccessor.prototype._optionMap;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    SelectMultipleControlValueAccessor.prototype._idCounter;\n    /**\n     * \\@description\n     * The registered callback function called when a change event occurs on the input element.\n     * @type {?}\n     */\n    SelectMultipleControlValueAccessor.prototype.onChange;\n    /**\n     * \\@description\n     * The registered callback function called when a blur event occurs on the input element.\n     * @type {?}\n     */\n    SelectMultipleControlValueAccessor.prototype.onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectMultipleControlValueAccessor.prototype._compareWith;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectMultipleControlValueAccessor.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectMultipleControlValueAccessor.prototype._elementRef;\n}\n/**\n * \\@description\n * Marks `<option>` as dynamic, so Angular can be notified when options change.\n *\n * @see `SelectMultipleControlValueAccessor`\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass ɵNgSelectMultipleOption {\n    /**\n     * @param {?} _element\n     * @param {?} _renderer\n     * @param {?} _select\n     */\n    constructor(_element, _renderer, _select) {\n        this._element = _element;\n        this._renderer = _renderer;\n        this._select = _select;\n        if (this._select) {\n            this.id = this._select._registerOption(this);\n        }\n    }\n    /**\n     * \\@description\n     * Tracks the value bound to the option element. Unlike the value binding,\n     * ngValue supports binding to objects.\n     * @param {?} value\n     * @return {?}\n     */\n    set ngValue(value) {\n        if (this._select == null)\n            return;\n        this._value = value;\n        this._setElementValue(_buildValueString$1(this.id, value));\n        this._select.writeValue(this._select.value);\n    }\n    /**\n     * \\@description\n     * Tracks simple string values bound to the option element.\n     * For objects, use the `ngValue` input binding.\n     * @param {?} value\n     * @return {?}\n     */\n    set value(value) {\n        if (this._select) {\n            this._value = value;\n            this._setElementValue(_buildValueString$1(this.id, value));\n            this._select.writeValue(this._select.value);\n        }\n        else {\n            this._setElementValue(value);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _setElementValue(value) {\n        this._renderer.setProperty(this._element.nativeElement, 'value', value);\n    }\n    /**\n     * \\@internal\n     * @param {?} selected\n     * @return {?}\n     */\n    _setSelected(selected) {\n        this._renderer.setProperty(this._element.nativeElement, 'selected', selected);\n    }\n    /**\n     * \\@description\n     * Lifecycle method called before the directive's instance is destroyed. For internal use only.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._select) {\n            this._select._optionMap.delete(this.id);\n            this._select.writeValue(this._select.value);\n        }\n    }\n}\nɵNgSelectMultipleOption.ɵfac = function ɵNgSelectMultipleOption_Factory(t) { return new (t || ɵNgSelectMultipleOption)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Renderer2), ɵngcc0.ɵɵdirectiveInject(SelectMultipleControlValueAccessor, 9)); };\nɵNgSelectMultipleOption.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: ɵNgSelectMultipleOption, selectors: [[\"option\"]], inputs: { ngValue: \"ngValue\", value: \"value\" } });\n/** @nocollapse */\nɵNgSelectMultipleOption.ctorParameters = () => [\n    { type: ElementRef },\n    { type: Renderer2 },\n    { type: SelectMultipleControlValueAccessor, decorators: [{ type: Optional }, { type: Host }] }\n];\nɵNgSelectMultipleOption.propDecorators = {\n    ngValue: [{ type: Input, args: ['ngValue',] }],\n    value: [{ type: Input, args: ['value',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ɵNgSelectMultipleOption, [{\n        type: Directive,\n        args: [{ selector: 'option' }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.Renderer2 }, { type: SelectMultipleControlValueAccessor, decorators: [{\n                type: Optional\n            }, {\n                type: Host\n            }] }]; }, { ngValue: [{\n            type: Input,\n            args: ['ngValue']\n        }], value: [{\n            type: Input,\n            args: ['value']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    ɵNgSelectMultipleOption.prototype.id;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    ɵNgSelectMultipleOption.prototype._value;\n    /**\n     * @type {?}\n     * @private\n     */\n    ɵNgSelectMultipleOption.prototype._element;\n    /**\n     * @type {?}\n     * @private\n     */\n    ɵNgSelectMultipleOption.prototype._renderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    ɵNgSelectMultipleOption.prototype._select;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/shared.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} name\n * @param {?} parent\n * @return {?}\n */\nfunction controlPath(name, parent) {\n    return [...(/** @type {?} */ (parent.path)), (/** @type {?} */ (name))];\n}\n/**\n * @param {?} control\n * @param {?} dir\n * @return {?}\n */\nfunction setUpControl(control, dir) {\n    if (!control)\n        _throwError(dir, 'Cannot find control with');\n    if (!dir.valueAccessor)\n        _throwError(dir, 'No value accessor for form control with');\n    control.validator = Validators.compose([(/** @type {?} */ (control.validator)), dir.validator]);\n    control.asyncValidator = Validators.composeAsync([(/** @type {?} */ (control.asyncValidator)), dir.asyncValidator]);\n    (/** @type {?} */ (dir.valueAccessor)).writeValue(control.value);\n    setUpViewChangePipeline(control, dir);\n    setUpModelChangePipeline(control, dir);\n    setUpBlurPipeline(control, dir);\n    if ((/** @type {?} */ (dir.valueAccessor)).setDisabledState) {\n        control.registerOnDisabledChange((/**\n         * @param {?} isDisabled\n         * @return {?}\n         */\n        (isDisabled) => {\n            (/** @type {?} */ ((/** @type {?} */ (dir.valueAccessor)).setDisabledState))(isDisabled);\n        }));\n    }\n    // re-run validation when validator binding changes, e.g. minlength=3 -> minlength=4\n    dir._rawValidators.forEach((/**\n     * @param {?} validator\n     * @return {?}\n     */\n    (validator) => {\n        if (((/** @type {?} */ (validator))).registerOnValidatorChange)\n            (/** @type {?} */ (((/** @type {?} */ (validator))).registerOnValidatorChange))((/**\n             * @return {?}\n             */\n            () => control.updateValueAndValidity()));\n    }));\n    dir._rawAsyncValidators.forEach((/**\n     * @param {?} validator\n     * @return {?}\n     */\n    (validator) => {\n        if (((/** @type {?} */ (validator))).registerOnValidatorChange)\n            (/** @type {?} */ (((/** @type {?} */ (validator))).registerOnValidatorChange))((/**\n             * @return {?}\n             */\n            () => control.updateValueAndValidity()));\n    }));\n}\n/**\n * @param {?} control\n * @param {?} dir\n * @return {?}\n */\nfunction cleanUpControl(control, dir) {\n    (/** @type {?} */ (dir.valueAccessor)).registerOnChange((/**\n     * @return {?}\n     */\n    () => _noControlError(dir)));\n    (/** @type {?} */ (dir.valueAccessor)).registerOnTouched((/**\n     * @return {?}\n     */\n    () => _noControlError(dir)));\n    dir._rawValidators.forEach((/**\n     * @param {?} validator\n     * @return {?}\n     */\n    (validator) => {\n        if (validator.registerOnValidatorChange) {\n            validator.registerOnValidatorChange(null);\n        }\n    }));\n    dir._rawAsyncValidators.forEach((/**\n     * @param {?} validator\n     * @return {?}\n     */\n    (validator) => {\n        if (validator.registerOnValidatorChange) {\n            validator.registerOnValidatorChange(null);\n        }\n    }));\n    if (control)\n        control._clearChangeFns();\n}\n/**\n * @param {?} control\n * @param {?} dir\n * @return {?}\n */\nfunction setUpViewChangePipeline(control, dir) {\n    (/** @type {?} */ (dir.valueAccessor)).registerOnChange((/**\n     * @param {?} newValue\n     * @return {?}\n     */\n    (newValue) => {\n        control._pendingValue = newValue;\n        control._pendingChange = true;\n        control._pendingDirty = true;\n        if (control.updateOn === 'change')\n            updateControl(control, dir);\n    }));\n}\n/**\n * @param {?} control\n * @param {?} dir\n * @return {?}\n */\nfunction setUpBlurPipeline(control, dir) {\n    (/** @type {?} */ (dir.valueAccessor)).registerOnTouched((/**\n     * @return {?}\n     */\n    () => {\n        control._pendingTouched = true;\n        if (control.updateOn === 'blur' && control._pendingChange)\n            updateControl(control, dir);\n        if (control.updateOn !== 'submit')\n            control.markAsTouched();\n    }));\n}\n/**\n * @param {?} control\n * @param {?} dir\n * @return {?}\n */\nfunction updateControl(control, dir) {\n    if (control._pendingDirty)\n        control.markAsDirty();\n    control.setValue(control._pendingValue, { emitModelToViewChange: false });\n    dir.viewToModelUpdate(control._pendingValue);\n    control._pendingChange = false;\n}\n/**\n * @param {?} control\n * @param {?} dir\n * @return {?}\n */\nfunction setUpModelChangePipeline(control, dir) {\n    control.registerOnChange((/**\n     * @param {?} newValue\n     * @param {?} emitModelEvent\n     * @return {?}\n     */\n    (newValue, emitModelEvent) => {\n        // control -> view\n        (/** @type {?} */ (dir.valueAccessor)).writeValue(newValue);\n        // control -> ngModel\n        if (emitModelEvent)\n            dir.viewToModelUpdate(newValue);\n    }));\n}\n/**\n * @param {?} control\n * @param {?} dir\n * @return {?}\n */\nfunction setUpFormContainer(control, dir) {\n    if (control == null)\n        _throwError(dir, 'Cannot find control with');\n    control.validator = Validators.compose([control.validator, dir.validator]);\n    control.asyncValidator = Validators.composeAsync([control.asyncValidator, dir.asyncValidator]);\n}\n/**\n * @param {?} dir\n * @return {?}\n */\nfunction _noControlError(dir) {\n    return _throwError(dir, 'There is no FormControl instance attached to form control element with');\n}\n/**\n * @param {?} dir\n * @param {?} message\n * @return {?}\n */\nfunction _throwError(dir, message) {\n    /** @type {?} */\n    let messageEnd;\n    if ((/** @type {?} */ (dir.path)).length > 1) {\n        messageEnd = `path: '${(/** @type {?} */ (dir.path)).join(' -> ')}'`;\n    }\n    else if ((/** @type {?} */ (dir.path))[0]) {\n        messageEnd = `name: '${dir.path}'`;\n    }\n    else {\n        messageEnd = 'unspecified name attribute';\n    }\n    throw new Error(`${message} ${messageEnd}`);\n}\n/**\n * @param {?} validators\n * @return {?}\n */\nfunction composeValidators(validators) {\n    return validators != null ? Validators.compose(validators.map(normalizeValidator)) : null;\n}\n/**\n * @param {?} validators\n * @return {?}\n */\nfunction composeAsyncValidators(validators) {\n    return validators != null ? Validators.composeAsync(validators.map(normalizeAsyncValidator)) :\n        null;\n}\n/**\n * @param {?} changes\n * @param {?} viewModel\n * @return {?}\n */\nfunction isPropertyUpdated(changes, viewModel) {\n    if (!changes.hasOwnProperty('model'))\n        return false;\n    /** @type {?} */\n    const change = changes['model'];\n    if (change.isFirstChange())\n        return true;\n    return !ɵlooseIdentical(viewModel, change.currentValue);\n}\n/** @type {?} */\nconst BUILTIN_ACCESSORS = [\n    CheckboxControlValueAccessor,\n    RangeValueAccessor,\n    NumberValueAccessor,\n    SelectControlValueAccessor,\n    SelectMultipleControlValueAccessor,\n    RadioControlValueAccessor,\n];\n/**\n * @param {?} valueAccessor\n * @return {?}\n */\nfunction isBuiltInAccessor(valueAccessor) {\n    return BUILTIN_ACCESSORS.some((/**\n     * @param {?} a\n     * @return {?}\n     */\n    a => valueAccessor.constructor === a));\n}\n/**\n * @param {?} form\n * @param {?} directives\n * @return {?}\n */\nfunction syncPendingControls(form, directives) {\n    form._syncPendingControls();\n    directives.forEach((/**\n     * @param {?} dir\n     * @return {?}\n     */\n    dir => {\n        /** @type {?} */\n        const control = (/** @type {?} */ (dir.control));\n        if (control.updateOn === 'submit' && control._pendingChange) {\n            dir.viewToModelUpdate(control._pendingValue);\n            control._pendingChange = false;\n        }\n    }));\n}\n// TODO: vsavkin remove it once https://github.com/angular/angular/issues/3011 is implemented\n/**\n * @param {?} dir\n * @param {?} valueAccessors\n * @return {?}\n */\nfunction selectValueAccessor(dir, valueAccessors) {\n    if (!valueAccessors)\n        return null;\n    if (!Array.isArray(valueAccessors))\n        _throwError(dir, 'Value accessor was not provided as an array for form control with');\n    /** @type {?} */\n    let defaultAccessor = undefined;\n    /** @type {?} */\n    let builtinAccessor = undefined;\n    /** @type {?} */\n    let customAccessor = undefined;\n    valueAccessors.forEach((/**\n     * @param {?} v\n     * @return {?}\n     */\n    (v) => {\n        if (v.constructor === DefaultValueAccessor) {\n            defaultAccessor = v;\n        }\n        else if (isBuiltInAccessor(v)) {\n            if (builtinAccessor)\n                _throwError(dir, 'More than one built-in value accessor matches form control with');\n            builtinAccessor = v;\n        }\n        else {\n            if (customAccessor)\n                _throwError(dir, 'More than one custom value accessor matches form control with');\n            customAccessor = v;\n        }\n    }));\n    if (customAccessor)\n        return customAccessor;\n    if (builtinAccessor)\n        return builtinAccessor;\n    if (defaultAccessor)\n        return defaultAccessor;\n    _throwError(dir, 'No valid value accessor for form control with');\n    return null;\n}\n/**\n * @template T\n * @param {?} list\n * @param {?} el\n * @return {?}\n */\nfunction removeDir(list, el) {\n    /** @type {?} */\n    const index = list.indexOf(el);\n    if (index > -1)\n        list.splice(index, 1);\n}\n// TODO(kara): remove after deprecation period\n/**\n * @param {?} name\n * @param {?} type\n * @param {?} instance\n * @param {?} warningConfig\n * @return {?}\n */\nfunction _ngModelWarning(name, type, instance, warningConfig) {\n    if (!isDevMode() || warningConfig === 'never')\n        return;\n    if (((warningConfig === null || warningConfig === 'once') && !type._ngModelWarningSentOnce) ||\n        (warningConfig === 'always' && !instance._ngModelWarningSent)) {\n        ReactiveErrors.ngModelWarning(name);\n        type._ngModelWarningSentOnce = true;\n        instance._ngModelWarningSent = true;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/model.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Reports that a FormControl is valid, meaning that no errors exist in the input value.\n *\n * @see `status`\n * @type {?}\n */\nconst VALID = 'VALID';\n/**\n * Reports that a FormControl is invalid, meaning that an error exists in the input value.\n *\n * @see `status`\n * @type {?}\n */\nconst INVALID = 'INVALID';\n/**\n * Reports that a FormControl is pending, meaning that that async validation is occurring and\n * errors are not yet available for the input value.\n *\n * @see `markAsPending`\n * @see `status`\n * @type {?}\n */\nconst PENDING = 'PENDING';\n/**\n * Reports that a FormControl is disabled, meaning that the control is exempt from ancestor\n * calculations of validity or value.\n *\n * @see `markAsDisabled`\n * @see `status`\n * @type {?}\n */\nconst DISABLED = 'DISABLED';\n/**\n * @param {?} control\n * @param {?} path\n * @param {?} delimiter\n * @return {?}\n */\nfunction _find(control, path, delimiter) {\n    if (path == null)\n        return null;\n    if (!Array.isArray(path)) {\n        path = path.split(delimiter);\n    }\n    if (Array.isArray(path) && path.length === 0)\n        return null;\n    // Not using Array.reduce here due to a Chrome 80 bug\n    // https://bugs.chromium.org/p/chromium/issues/detail?id=1049982\n    /** @type {?} */\n    let controlToFind = control;\n    path.forEach((/**\n     * @param {?} name\n     * @return {?}\n     */\n    (name) => {\n        if (controlToFind instanceof FormGroup) {\n            controlToFind = controlToFind.controls.hasOwnProperty((/** @type {?} */ (name))) ?\n                controlToFind.controls[name] :\n                null;\n        }\n        else if (controlToFind instanceof FormArray) {\n            controlToFind = controlToFind.at((/** @type {?} */ (name))) || null;\n        }\n        else {\n            controlToFind = null;\n        }\n    }));\n    return controlToFind;\n}\n/**\n * @param {?=} validatorOrOpts\n * @return {?}\n */\nfunction coerceToValidator(validatorOrOpts) {\n    /** @type {?} */\n    const validator = (/** @type {?} */ ((isOptionsObj(validatorOrOpts) ? ((/** @type {?} */ (validatorOrOpts))).validators :\n        validatorOrOpts)));\n    return Array.isArray(validator) ? composeValidators(validator) : validator || null;\n}\n/**\n * @param {?=} asyncValidator\n * @param {?=} validatorOrOpts\n * @return {?}\n */\nfunction coerceToAsyncValidator(asyncValidator, validatorOrOpts) {\n    /** @type {?} */\n    const origAsyncValidator = (/** @type {?} */ ((isOptionsObj(validatorOrOpts) ? ((/** @type {?} */ (validatorOrOpts))).asyncValidators :\n        asyncValidator)));\n    return Array.isArray(origAsyncValidator) ? composeAsyncValidators(origAsyncValidator) :\n        origAsyncValidator || null;\n}\n/**\n * Interface for options provided to an `AbstractControl`.\n *\n * \\@publicApi\n * @record\n */\nfunction AbstractControlOptions() { }\nif (false) {\n    /**\n     * \\@description\n     * The list of validators applied to a control.\n     * @type {?|undefined}\n     */\n    AbstractControlOptions.prototype.validators;\n    /**\n     * \\@description\n     * The list of async validators applied to control.\n     * @type {?|undefined}\n     */\n    AbstractControlOptions.prototype.asyncValidators;\n    /**\n     * \\@description\n     * The event name for control to update upon.\n     * @type {?|undefined}\n     */\n    AbstractControlOptions.prototype.updateOn;\n}\n/**\n * @param {?=} validatorOrOpts\n * @return {?}\n */\nfunction isOptionsObj(validatorOrOpts) {\n    return validatorOrOpts != null && !Array.isArray(validatorOrOpts) &&\n        typeof validatorOrOpts === 'object';\n}\n/**\n * This is the base class for `FormControl`, `FormGroup`, and `FormArray`.\n *\n * It provides some of the shared behavior that all controls and groups of controls have, like\n * running validators, calculating status, and resetting state. It also defines the properties\n * that are shared between all sub-classes, like `value`, `valid`, and `dirty`. It shouldn't be\n * instantiated directly.\n *\n * @see [Forms Guide](/guide/forms)\n * @see [Reactive Forms Guide](/guide/reactive-forms)\n * @see [Dynamic Forms Guide](/guide/dynamic-form)\n *\n * \\@publicApi\n * @abstract\n */\nclass AbstractControl {\n    /**\n     * Initialize the AbstractControl instance.\n     *\n     * @param {?} validator The function that determines the synchronous validity of this control.\n     * @param {?} asyncValidator The function that determines the asynchronous validity of this\n     * control.\n     */\n    constructor(validator, asyncValidator) {\n        this.validator = validator;\n        this.asyncValidator = asyncValidator;\n        /**\n         * \\@internal\n         */\n        this._onCollectionChange = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * A control is `pristine` if the user has not yet changed\n         * the value in the UI.\n         *\n         * @return True if the user has not yet changed the value in the UI; compare `dirty`.\n         * Programmatic changes to a control's value do not mark it dirty.\n         */\n        this.pristine = true;\n        /**\n         * True if the control is marked as `touched`.\n         *\n         * A control is marked `touched` once the user has triggered\n         * a `blur` event on it.\n         */\n        this.touched = false;\n        /**\n         * \\@internal\n         */\n        this._onDisabledChange = [];\n    }\n    /**\n     * The parent control.\n     * @return {?}\n     */\n    get parent() {\n        return this._parent;\n    }\n    /**\n     * A control is `valid` when its `status` is `VALID`.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @return {?} True if the control has passed all of its validation tests,\n     * false otherwise.\n     */\n    get valid() {\n        return this.status === VALID;\n    }\n    /**\n     * A control is `invalid` when its `status` is `INVALID`.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @return {?} True if this control has failed one or more of its validation checks,\n     * false otherwise.\n     */\n    get invalid() {\n        return this.status === INVALID;\n    }\n    /**\n     * A control is `pending` when its `status` is `PENDING`.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @return {?} True if this control is in the process of conducting a validation check,\n     * false otherwise.\n     */\n    get pending() {\n        return this.status == PENDING;\n    }\n    /**\n     * A control is `disabled` when its `status` is `DISABLED`.\n     *\n     * Disabled controls are exempt from validation checks and\n     * are not included in the aggregate value of their ancestor\n     * controls.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @return {?} True if the control is disabled, false otherwise.\n     */\n    get disabled() {\n        return this.status === DISABLED;\n    }\n    /**\n     * A control is `enabled` as long as its `status` is not `DISABLED`.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @return {?} True if the control has any status other than 'DISABLED',\n     * false if the status is 'DISABLED'.\n     *\n     */\n    get enabled() {\n        return this.status !== DISABLED;\n    }\n    /**\n     * A control is `dirty` if the user has changed the value\n     * in the UI.\n     *\n     * @return {?} True if the user has changed the value of this control in the UI; compare `pristine`.\n     * Programmatic changes to a control's value do not mark it dirty.\n     */\n    get dirty() {\n        return !this.pristine;\n    }\n    /**\n     * True if the control has not been marked as touched\n     *\n     * A control is `untouched` if the user has not yet triggered\n     * a `blur` event on it.\n     * @return {?}\n     */\n    get untouched() {\n        return !this.touched;\n    }\n    /**\n     * Reports the update strategy of the `AbstractControl` (meaning\n     * the event on which the control updates itself).\n     * Possible values: `'change'` | `'blur'` | `'submit'`\n     * Default value: `'change'`\n     * @return {?}\n     */\n    get updateOn() {\n        return this._updateOn ? this._updateOn : (this.parent ? this.parent.updateOn : 'change');\n    }\n    /**\n     * Sets the synchronous validators that are active on this control.  Calling\n     * this overwrites any existing sync validators.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * @param {?} newValidator\n     * @return {?}\n     */\n    setValidators(newValidator) {\n        this.validator = coerceToValidator(newValidator);\n    }\n    /**\n     * Sets the async validators that are active on this control. Calling this\n     * overwrites any existing async validators.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * @param {?} newValidator\n     * @return {?}\n     */\n    setAsyncValidators(newValidator) {\n        this.asyncValidator = coerceToAsyncValidator(newValidator);\n    }\n    /**\n     * Empties out the sync validator list.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * @return {?}\n     */\n    clearValidators() {\n        this.validator = null;\n    }\n    /**\n     * Empties out the async validator list.\n     *\n     * When you add or remove a validator at run time, you must call\n     * `updateValueAndValidity()` for the new validation to take effect.\n     *\n     * @return {?}\n     */\n    clearAsyncValidators() {\n        this.asyncValidator = null;\n    }\n    /**\n     * Marks the control as `touched`. A control is touched by focus and\n     * blur events that do not change the value.\n     *\n     * @see `markAsUntouched()` / `markAsDirty()` / `markAsPristine()`\n     *\n     * @param {?=} opts Configuration options that determine how the control propagates changes\n     * and emits events after marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * @return {?}\n     */\n    markAsTouched(opts = {}) {\n        ((/** @type {?} */ (this))).touched = true;\n        if (this._parent && !opts.onlySelf) {\n            this._parent.markAsTouched(opts);\n        }\n    }\n    /**\n     * Marks the control and all its descendant controls as `touched`.\n     * @see `markAsTouched()`\n     * @return {?}\n     */\n    markAllAsTouched() {\n        this.markAsTouched({ onlySelf: true });\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => control.markAllAsTouched()));\n    }\n    /**\n     * Marks the control as `untouched`.\n     *\n     * If the control has any children, also marks all children as `untouched`\n     * and recalculates the `touched` status of all parent controls.\n     *\n     * @see `markAsTouched()` / `markAsDirty()` / `markAsPristine()`\n     *\n     * @param {?=} opts Configuration options that determine how the control propagates changes\n     * and emits events after the marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * @return {?}\n     */\n    markAsUntouched(opts = {}) {\n        ((/** @type {?} */ (this))).touched = false;\n        this._pendingTouched = false;\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            control.markAsUntouched({ onlySelf: true });\n        }));\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updateTouched(opts);\n        }\n    }\n    /**\n     * Marks the control as `dirty`. A control becomes dirty when\n     * the control's value is changed through the UI; compare `markAsTouched`.\n     *\n     * @see `markAsTouched()` / `markAsUntouched()` / `markAsPristine()`\n     *\n     * @param {?=} opts Configuration options that determine how the control propagates changes\n     * and emits events after marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * @return {?}\n     */\n    markAsDirty(opts = {}) {\n        ((/** @type {?} */ (this))).pristine = false;\n        if (this._parent && !opts.onlySelf) {\n            this._parent.markAsDirty(opts);\n        }\n    }\n    /**\n     * Marks the control as `pristine`.\n     *\n     * If the control has any children, marks all children as `pristine`,\n     * and recalculates the `pristine` status of all parent\n     * controls.\n     *\n     * @see `markAsTouched()` / `markAsUntouched()` / `markAsDirty()`\n     *\n     * @param {?=} opts Configuration options that determine how the control emits events after\n     * marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * @return {?}\n     */\n    markAsPristine(opts = {}) {\n        ((/** @type {?} */ (this))).pristine = true;\n        this._pendingDirty = false;\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            control.markAsPristine({ onlySelf: true });\n        }));\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updatePristine(opts);\n        }\n    }\n    /**\n     * Marks the control as `pending`.\n     *\n     * A control is pending while the control performs async validation.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @param {?=} opts Configuration options that determine how the control propagates changes and\n     * emits events after marking is applied.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), the `statusChanges`\n     * observable emits an event with the latest status the control is marked pending.\n     * When false, no events are emitted.\n     *\n     * @return {?}\n     */\n    markAsPending(opts = {}) {\n        ((/** @type {?} */ (this))).status = PENDING;\n        if (opts.emitEvent !== false) {\n            ((/** @type {?} */ (this.statusChanges))).emit(this.status);\n        }\n        if (this._parent && !opts.onlySelf) {\n            this._parent.markAsPending(opts);\n        }\n    }\n    /**\n     * Disables the control. This means the control is exempt from validation checks and\n     * excluded from the aggregate value of any parent. Its status is `DISABLED`.\n     *\n     * If the control has children, all children are also disabled.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @param {?=} opts Configuration options that determine how the control propagates\n     * changes and emits events after the control is disabled.\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is disabled.\n     * When false, no events are emitted.\n     * @return {?}\n     */\n    disable(opts = {}) {\n        // If parent has been marked artificially dirty we don't want to re-calculate the\n        // parent's dirtiness based on the children.\n        /** @type {?} */\n        const skipPristineCheck = this._parentMarkedDirty(opts.onlySelf);\n        ((/** @type {?} */ (this))).status = DISABLED;\n        ((/** @type {?} */ (this))).errors = null;\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            control.disable(Object.assign(Object.assign({}, opts), { onlySelf: true }));\n        }));\n        this._updateValue();\n        if (opts.emitEvent !== false) {\n            ((/** @type {?} */ (this.valueChanges))).emit(this.value);\n            ((/** @type {?} */ (this.statusChanges))).emit(this.status);\n        }\n        this._updateAncestors(Object.assign(Object.assign({}, opts), { skipPristineCheck }));\n        this._onDisabledChange.forEach((/**\n         * @param {?} changeFn\n         * @return {?}\n         */\n        (changeFn) => changeFn(true)));\n    }\n    /**\n     * Enables the control. This means the control is included in validation checks and\n     * the aggregate value of its parent. Its status recalculates based on its value and\n     * its validators.\n     *\n     * By default, if the control has children, all children are enabled.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @param {?=} opts Configure options that control how the control propagates changes and\n     * emits events when marked as untouched\n     * * `onlySelf`: When true, mark only this control. When false or not supplied,\n     * marks all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is enabled.\n     * When false, no events are emitted.\n     * @return {?}\n     */\n    enable(opts = {}) {\n        // If parent has been marked artificially dirty we don't want to re-calculate the\n        // parent's dirtiness based on the children.\n        /** @type {?} */\n        const skipPristineCheck = this._parentMarkedDirty(opts.onlySelf);\n        ((/** @type {?} */ (this))).status = VALID;\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            control.enable(Object.assign(Object.assign({}, opts), { onlySelf: true }));\n        }));\n        this.updateValueAndValidity({ onlySelf: true, emitEvent: opts.emitEvent });\n        this._updateAncestors(Object.assign(Object.assign({}, opts), { skipPristineCheck }));\n        this._onDisabledChange.forEach((/**\n         * @param {?} changeFn\n         * @return {?}\n         */\n        (changeFn) => changeFn(false)));\n    }\n    /**\n     * @private\n     * @param {?} opts\n     * @return {?}\n     */\n    _updateAncestors(opts) {\n        if (this._parent && !opts.onlySelf) {\n            this._parent.updateValueAndValidity(opts);\n            if (!opts.skipPristineCheck) {\n                this._parent._updatePristine();\n            }\n            this._parent._updateTouched();\n        }\n    }\n    /**\n     * @param {?} parent Sets the parent of the control\n     * @return {?}\n     */\n    setParent(parent) {\n        this._parent = parent;\n    }\n    /**\n     * Recalculates the value and validation status of the control.\n     *\n     * By default, it also updates the value and validity of its ancestors.\n     *\n     * @param {?=} opts Configuration options determine how the control propagates changes and emits events\n     * after updates and validity checks are applied.\n     * * `onlySelf`: When true, only update this control. When false or not supplied,\n     * update all direct ancestors. Default is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is updated.\n     * When false, no events are emitted.\n     * @return {?}\n     */\n    updateValueAndValidity(opts = {}) {\n        this._setInitialStatus();\n        this._updateValue();\n        if (this.enabled) {\n            this._cancelExistingSubscription();\n            ((/** @type {?} */ (this))).errors = this._runValidator();\n            ((/** @type {?} */ (this))).status = this._calculateStatus();\n            if (this.status === VALID || this.status === PENDING) {\n                this._runAsyncValidator(opts.emitEvent);\n            }\n        }\n        if (opts.emitEvent !== false) {\n            ((/** @type {?} */ (this.valueChanges))).emit(this.value);\n            ((/** @type {?} */ (this.statusChanges))).emit(this.status);\n        }\n        if (this._parent && !opts.onlySelf) {\n            this._parent.updateValueAndValidity(opts);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?=} opts\n     * @return {?}\n     */\n    _updateTreeValidity(opts = { emitEvent: true }) {\n        this._forEachChild((/**\n         * @param {?} ctrl\n         * @return {?}\n         */\n        (ctrl) => ctrl._updateTreeValidity(opts)));\n        this.updateValueAndValidity({ onlySelf: true, emitEvent: opts.emitEvent });\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _setInitialStatus() {\n        ((/** @type {?} */ (this))).status = this._allControlsDisabled() ? DISABLED : VALID;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _runValidator() {\n        return this.validator ? this.validator(this) : null;\n    }\n    /**\n     * @private\n     * @param {?=} emitEvent\n     * @return {?}\n     */\n    _runAsyncValidator(emitEvent) {\n        if (this.asyncValidator) {\n            ((/** @type {?} */ (this))).status = PENDING;\n            /** @type {?} */\n            const obs = toObservable(this.asyncValidator(this));\n            this._asyncValidationSubscription =\n                obs.subscribe((/**\n                 * @param {?} errors\n                 * @return {?}\n                 */\n                (errors) => this.setErrors(errors, { emitEvent })));\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _cancelExistingSubscription() {\n        if (this._asyncValidationSubscription) {\n            this._asyncValidationSubscription.unsubscribe();\n        }\n    }\n    /**\n     * Sets errors on a form control when running validations manually, rather than automatically.\n     *\n     * Calling `setErrors` also updates the validity of the parent control.\n     *\n     * \\@usageNotes\n     *\n     * ### Manually set the errors for a control\n     *\n     * ```\n     * const login = new FormControl('someLogin');\n     * login.setErrors({\n     *   notUnique: true\n     * });\n     *\n     * expect(login.valid).toEqual(false);\n     * expect(login.errors).toEqual({ notUnique: true });\n     *\n     * login.setValue('someOtherLogin');\n     *\n     * expect(login.valid).toEqual(true);\n     * ```\n     * @param {?} errors\n     * @param {?=} opts\n     * @return {?}\n     */\n    setErrors(errors, opts = {}) {\n        ((/** @type {?} */ (this))).errors = errors;\n        this._updateControlsErrors(opts.emitEvent !== false);\n    }\n    /**\n     * Retrieves a child control given the control's name or path.\n     *\n     * \\@usageNotes\n     * ### Retrieve a nested control\n     *\n     * For example, to get a `name` control nested within a `person` sub-group:\n     *\n     * * `this.form.get('person.name');`\n     *\n     * -OR-\n     *\n     * * `this.form.get(['person', 'name']);`\n     * @param {?} path A dot-delimited string or array of string/number values that define the path to the\n     * control.\n     *\n     * @return {?}\n     */\n    get(path) {\n        return _find(this, path, '.');\n    }\n    /**\n     * \\@description\n     * Reports error data for the control with the given path.\n     *\n     * \\@usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * @param {?} errorCode The code of the error to check\n     * @param {?=} path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @return {?} error data for that particular error. If the control or error is not present,\n     * null is returned.\n     */\n    getError(errorCode, path) {\n        /** @type {?} */\n        const control = path ? this.get(path) : this;\n        return control && control.errors ? control.errors[errorCode] : null;\n    }\n    /**\n     * \\@description\n     * Reports whether the control with the given path has the error specified.\n     *\n     * \\@usageNotes\n     * For example, for the following `FormGroup`:\n     *\n     * ```\n     * form = new FormGroup({\n     *   address: new FormGroup({ street: new FormControl() })\n     * });\n     * ```\n     *\n     * The path to the 'street' control from the root form would be 'address' -> 'street'.\n     *\n     * It can be provided to this method in one of two formats:\n     *\n     * 1. An array of string control names, e.g. `['address', 'street']`\n     * 1. A period-delimited list of control names in one string, e.g. `'address.street'`\n     *\n     * If no path is given, this method checks for the error on the current control.\n     *\n     * @param {?} errorCode The code of the error to check\n     * @param {?=} path A list of control names that designates how to move from the current control\n     * to the control that should be queried for errors.\n     *\n     * @return {?} whether the given error is present in the control at the given path.\n     *\n     * If the control is not present, false is returned.\n     */\n    hasError(errorCode, path) {\n        return !!this.getError(errorCode, path);\n    }\n    /**\n     * Retrieves the top-level ancestor of this control.\n     * @return {?}\n     */\n    get root() {\n        /** @type {?} */\n        let x = this;\n        while (x._parent) {\n            x = x._parent;\n        }\n        return x;\n    }\n    /**\n     * \\@internal\n     * @param {?} emitEvent\n     * @return {?}\n     */\n    _updateControlsErrors(emitEvent) {\n        ((/** @type {?} */ (this))).status = this._calculateStatus();\n        if (emitEvent) {\n            ((/** @type {?} */ (this.statusChanges))).emit(this.status);\n        }\n        if (this._parent) {\n            this._parent._updateControlsErrors(emitEvent);\n        }\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _initObservables() {\n        ((/** @type {?} */ (this))).valueChanges = new EventEmitter();\n        ((/** @type {?} */ (this))).statusChanges = new EventEmitter();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _calculateStatus() {\n        if (this._allControlsDisabled())\n            return DISABLED;\n        if (this.errors)\n            return INVALID;\n        if (this._anyControlsHaveStatus(PENDING))\n            return PENDING;\n        if (this._anyControlsHaveStatus(INVALID))\n            return INVALID;\n        return VALID;\n    }\n    /**\n     * \\@internal\n     * @param {?} status\n     * @return {?}\n     */\n    _anyControlsHaveStatus(status) {\n        return this._anyControls((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => control.status === status));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _anyControlsDirty() {\n        return this._anyControls((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => control.dirty));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _anyControlsTouched() {\n        return this._anyControls((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => control.touched));\n    }\n    /**\n     * \\@internal\n     * @param {?=} opts\n     * @return {?}\n     */\n    _updatePristine(opts = {}) {\n        ((/** @type {?} */ (this))).pristine = !this._anyControlsDirty();\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updatePristine(opts);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?=} opts\n     * @return {?}\n     */\n    _updateTouched(opts = {}) {\n        ((/** @type {?} */ (this))).touched = this._anyControlsTouched();\n        if (this._parent && !opts.onlySelf) {\n            this._parent._updateTouched(opts);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} formState\n     * @return {?}\n     */\n    _isBoxedValue(formState) {\n        return typeof formState === 'object' && formState !== null &&\n            Object.keys(formState).length === 2 && 'value' in formState && 'disabled' in formState;\n    }\n    /**\n     * \\@internal\n     * @param {?} fn\n     * @return {?}\n     */\n    _registerOnCollectionChange(fn) {\n        this._onCollectionChange = fn;\n    }\n    /**\n     * \\@internal\n     * @param {?=} opts\n     * @return {?}\n     */\n    _setUpdateStrategy(opts) {\n        if (isOptionsObj(opts) && ((/** @type {?} */ (opts))).updateOn != null) {\n            this._updateOn = (/** @type {?} */ (((/** @type {?} */ (opts))).updateOn));\n        }\n    }\n    /**\n     * Check to see if parent has been marked artificially dirty.\n     *\n     * \\@internal\n     * @private\n     * @param {?=} onlySelf\n     * @return {?}\n     */\n    _parentMarkedDirty(onlySelf) {\n        /** @type {?} */\n        const parentDirty = this._parent && this._parent.dirty;\n        return !onlySelf && parentDirty && !this._parent._anyControlsDirty();\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    AbstractControl.prototype._pendingDirty;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    AbstractControl.prototype._pendingTouched;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    AbstractControl.prototype._onCollectionChange;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    AbstractControl.prototype._updateOn;\n    /**\n     * @type {?}\n     * @private\n     */\n    AbstractControl.prototype._parent;\n    /**\n     * @type {?}\n     * @private\n     */\n    AbstractControl.prototype._asyncValidationSubscription;\n    /**\n     * The current value of the control.\n     *\n     * * For a `FormControl`, the current value.\n     * * For an enabled `FormGroup`, the values of enabled controls as an object\n     * with a key-value pair for each member of the group.\n     * * For a disabled `FormGroup`, the values of all controls as an object\n     * with a key-value pair for each member of the group.\n     * * For a `FormArray`, the values of enabled controls as an array.\n     *\n     * @type {?}\n     */\n    AbstractControl.prototype.value;\n    /**\n     * The validation status of the control. There are four possible\n     * validation status values:\n     *\n     * * **VALID**: This control has passed all validation checks.\n     * * **INVALID**: This control has failed at least one validation check.\n     * * **PENDING**: This control is in the midst of conducting a validation check.\n     * * **DISABLED**: This control is exempt from validation checks.\n     *\n     * These status values are mutually exclusive, so a control cannot be\n     * both valid AND invalid or invalid AND disabled.\n     * @type {?}\n     */\n    AbstractControl.prototype.status;\n    /**\n     * An object containing any errors generated by failing validation,\n     * or null if there are no errors.\n     * @type {?}\n     */\n    AbstractControl.prototype.errors;\n    /**\n     * A control is `pristine` if the user has not yet changed\n     * the value in the UI.\n     *\n     * \\@return True if the user has not yet changed the value in the UI; compare `dirty`.\n     * Programmatic changes to a control's value do not mark it dirty.\n     * @type {?}\n     */\n    AbstractControl.prototype.pristine;\n    /**\n     * True if the control is marked as `touched`.\n     *\n     * A control is marked `touched` once the user has triggered\n     * a `blur` event on it.\n     * @type {?}\n     */\n    AbstractControl.prototype.touched;\n    /**\n     * A multicasting observable that emits an event every time the value of the control changes, in\n     * the UI or programmatically. It also emits an event each time you call enable() or disable()\n     * without passing along {emitEvent: false} as a function argument.\n     * @type {?}\n     */\n    AbstractControl.prototype.valueChanges;\n    /**\n     * A multicasting observable that emits an event every time the validation `status` of the control\n     * recalculates.\n     *\n     * @see {\\@link AbstractControl.status}\n     *\n     * @type {?}\n     */\n    AbstractControl.prototype.statusChanges;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    AbstractControl.prototype._onDisabledChange;\n    /** @type {?} */\n    AbstractControl.prototype.validator;\n    /** @type {?} */\n    AbstractControl.prototype.asyncValidator;\n    /**\n     * Sets the value of the control. Abstract method (implemented in sub-classes).\n     * @abstract\n     * @param {?} value\n     * @param {?=} options\n     * @return {?}\n     */\n    AbstractControl.prototype.setValue = function (value, options) { };\n    /**\n     * Patches the value of the control. Abstract method (implemented in sub-classes).\n     * @abstract\n     * @param {?} value\n     * @param {?=} options\n     * @return {?}\n     */\n    AbstractControl.prototype.patchValue = function (value, options) { };\n    /**\n     * Resets the control. Abstract method (implemented in sub-classes).\n     * @abstract\n     * @param {?=} value\n     * @param {?=} options\n     * @return {?}\n     */\n    AbstractControl.prototype.reset = function (value, options) { };\n    /**\n     * \\@internal\n     * @abstract\n     * @return {?}\n     */\n    AbstractControl.prototype._updateValue = function () { };\n    /**\n     * \\@internal\n     * @abstract\n     * @param {?} cb\n     * @return {?}\n     */\n    AbstractControl.prototype._forEachChild = function (cb) { };\n    /**\n     * \\@internal\n     * @abstract\n     * @param {?} condition\n     * @return {?}\n     */\n    AbstractControl.prototype._anyControls = function (condition) { };\n    /**\n     * \\@internal\n     * @abstract\n     * @return {?}\n     */\n    AbstractControl.prototype._allControlsDisabled = function () { };\n    /**\n     * \\@internal\n     * @abstract\n     * @return {?}\n     */\n    AbstractControl.prototype._syncPendingControls = function () { };\n}\n/**\n * Tracks the value and validation status of an individual form control.\n *\n * This is one of the three fundamental building blocks of Angular forms, along with\n * `FormGroup` and `FormArray`. It extends the `AbstractControl` class that\n * implements most of the base functionality for accessing the value, validation status,\n * user interactions and events. See [usage examples below](#usage-notes).\n *\n * @see `AbstractControl`\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see [Usage Notes](#usage-notes)\n *\n * \\@usageNotes\n *\n * ### Initializing Form Controls\n *\n * Instantiate a `FormControl`, with an initial value.\n *\n * ```ts\n * const control = new FormControl('some value');\n * console.log(control.value);     // 'some value'\n * ```\n *\n * The following example initializes the control with a form state object. The `value`\n * and `disabled` keys are required in this case.\n *\n * ```ts\n * const control = new FormControl({ value: 'n/a', disabled: true });\n * console.log(control.value);     // 'n/a'\n * console.log(control.status);    // 'DISABLED'\n * ```\n *\n * The following example initializes the control with a sync validator.\n *\n * ```ts\n * const control = new FormControl('', Validators.required);\n * console.log(control.value);      // ''\n * console.log(control.status);     // 'INVALID'\n * ```\n *\n * The following example initializes the control using an options object.\n *\n * ```ts\n * const control = new FormControl('', {\n *    validators: Validators.required,\n *    asyncValidators: myAsyncValidator\n * });\n * ```\n *\n * ### Configure the control to update on a blur event\n *\n * Set the `updateOn` option to `'blur'` to update on the blur `event`.\n *\n * ```ts\n * const control = new FormControl('', { updateOn: 'blur' });\n * ```\n *\n * ### Configure the control to update on a submit event\n *\n * Set the `updateOn` option to `'submit'` to update on a submit `event`.\n *\n * ```ts\n * const control = new FormControl('', { updateOn: 'submit' });\n * ```\n *\n * ### Reset the control back to an initial value\n *\n * You reset to a specific form state by passing through a standalone\n * value or a form state object that contains both a value and a disabled state\n * (these are the only two properties that cannot be calculated).\n *\n * ```ts\n * const control = new FormControl('Nancy');\n *\n * console.log(control.value); // 'Nancy'\n *\n * control.reset('Drew');\n *\n * console.log(control.value); // 'Drew'\n * ```\n *\n * ### Reset the control back to an initial value and disabled\n *\n * ```\n * const control = new FormControl('Nancy');\n *\n * console.log(control.value); // 'Nancy'\n * console.log(control.status); // 'VALID'\n *\n * control.reset({ value: 'Drew', disabled: true });\n *\n * console.log(control.value); // 'Drew'\n * console.log(control.status); // 'DISABLED'\n * ```\n *\n * \\@publicApi\n */\nclass FormControl extends AbstractControl {\n    /**\n     * Creates a new `FormControl` instance.\n     *\n     * @param {?=} formState Initializes the control with an initial value,\n     * or an object that defines the initial value and disabled state.\n     *\n     * @param {?=} validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or an `AbstractControlOptions` object that contains validation functions\n     * and a validation trigger.\n     *\n     * @param {?=} asyncValidator A single async validator or array of async validator functions\n     *\n     */\n    constructor(formState = null, validatorOrOpts, asyncValidator) {\n        super(coerceToValidator(validatorOrOpts), coerceToAsyncValidator(asyncValidator, validatorOrOpts));\n        /**\n         * \\@internal\n         */\n        this._onChange = [];\n        this._applyFormState(formState);\n        this._setUpdateStrategy(validatorOrOpts);\n        this.updateValueAndValidity({ onlySelf: true, emitEvent: false });\n        this._initObservables();\n    }\n    /**\n     * Sets a new value for the form control.\n     *\n     * @param {?} value The new value for the control.\n     * @param {?=} options Configuration options that determine how the control propagates changes\n     * and emits events when the value changes.\n     * The configuration options are passed to the {\\@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default is\n     * false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control value is updated.\n     * When false, no events are emitted.\n     * * `emitModelToViewChange`: When true or not supplied  (the default), each change triggers an\n     * `onChange` event to\n     * update the view.\n     * * `emitViewToModelChange`: When true or not supplied (the default), each change triggers an\n     * `ngModelChange`\n     * event to update the model.\n     *\n     * @return {?}\n     */\n    setValue(value, options = {}) {\n        ((/** @type {?} */ (this))).value = this._pendingValue = value;\n        if (this._onChange.length && options.emitModelToViewChange !== false) {\n            this._onChange.forEach((/**\n             * @param {?} changeFn\n             * @return {?}\n             */\n            (changeFn) => changeFn(this.value, options.emitViewToModelChange !== false)));\n        }\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Patches the value of a control.\n     *\n     * This function is functionally the same as {\\@link FormControl#setValue setValue} at this level.\n     * It exists for symmetry with {\\@link FormGroup#patchValue patchValue} on `FormGroups` and\n     * `FormArrays`, where it does behave differently.\n     *\n     * @see `setValue` for options\n     * @param {?} value\n     * @param {?=} options\n     * @return {?}\n     */\n    patchValue(value, options = {}) {\n        this.setValue(value, options);\n    }\n    /**\n     * Resets the form control, marking it `pristine` and `untouched`, and setting\n     * the value to null.\n     *\n     * @param {?=} formState Resets the control with an initial value,\n     * or an object that defines the initial value and disabled state.\n     *\n     * @param {?=} options Configuration options that determine how the control propagates changes\n     * and emits events after the value changes.\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default is\n     * false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is reset.\n     * When false, no events are emitted.\n     *\n     * @return {?}\n     */\n    reset(formState = null, options = {}) {\n        this._applyFormState(formState);\n        this.markAsPristine(options);\n        this.markAsUntouched(options);\n        this.setValue(this.value, options);\n        this._pendingChange = false;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _updateValue() { }\n    /**\n     * \\@internal\n     * @param {?} condition\n     * @return {?}\n     */\n    _anyControls(condition) {\n        return false;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _allControlsDisabled() {\n        return this.disabled;\n    }\n    /**\n     * Register a listener for change events.\n     *\n     * @param {?} fn The method that is called when the value changes\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._onChange.push(fn);\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _clearChangeFns() {\n        this._onChange = [];\n        this._onDisabledChange = [];\n        this._onCollectionChange = (/**\n         * @return {?}\n         */\n        () => { });\n    }\n    /**\n     * Register a listener for disabled events.\n     *\n     * @param {?} fn The method that is called when the disabled status changes.\n     * @return {?}\n     */\n    registerOnDisabledChange(fn) {\n        this._onDisabledChange.push(fn);\n    }\n    /**\n     * \\@internal\n     * @param {?} cb\n     * @return {?}\n     */\n    _forEachChild(cb) { }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _syncPendingControls() {\n        if (this.updateOn === 'submit') {\n            if (this._pendingDirty)\n                this.markAsDirty();\n            if (this._pendingTouched)\n                this.markAsTouched();\n            if (this._pendingChange) {\n                this.setValue(this._pendingValue, { onlySelf: true, emitModelToViewChange: false });\n                return true;\n            }\n        }\n        return false;\n    }\n    /**\n     * @private\n     * @param {?} formState\n     * @return {?}\n     */\n    _applyFormState(formState) {\n        if (this._isBoxedValue(formState)) {\n            ((/** @type {?} */ (this))).value = this._pendingValue = formState.value;\n            formState.disabled ? this.disable({ onlySelf: true, emitEvent: false }) :\n                this.enable({ onlySelf: true, emitEvent: false });\n        }\n        else {\n            ((/** @type {?} */ (this))).value = this._pendingValue = formState;\n        }\n    }\n}\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    FormControl.prototype._onChange;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    FormControl.prototype._pendingValue;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    FormControl.prototype._pendingChange;\n}\n/**\n * Tracks the value and validity state of a group of `FormControl` instances.\n *\n * A `FormGroup` aggregates the values of each child `FormControl` into one object,\n * with each control name as the key.  It calculates its status by reducing the status values\n * of its children. For example, if one of the controls in a group is invalid, the entire\n * group becomes invalid.\n *\n * `FormGroup` is one of the three fundamental building blocks used to define forms in Angular,\n * along with `FormControl` and `FormArray`.\n *\n * When instantiating a `FormGroup`, pass in a collection of child controls as the first\n * argument. The key for each child registers the name for the control.\n *\n * \\@usageNotes\n *\n * ### Create a form group with 2 controls\n *\n * ```\n * const form = new FormGroup({\n *   first: new FormControl('Nancy', Validators.minLength(2)),\n *   last: new FormControl('Drew'),\n * });\n *\n * console.log(form.value);   // {first: 'Nancy', last; 'Drew'}\n * console.log(form.status);  // 'VALID'\n * ```\n *\n * ### Create a form group with a group-level validator\n *\n * You include group-level validators as the second arg, or group-level async\n * validators as the third arg. These come in handy when you want to perform validation\n * that considers the value of more than one child control.\n *\n * ```\n * const form = new FormGroup({\n *   password: new FormControl('', Validators.minLength(2)),\n *   passwordConfirm: new FormControl('', Validators.minLength(2)),\n * }, passwordMatchValidator);\n *\n *\n * function passwordMatchValidator(g: FormGroup) {\n *    return g.get('password').value === g.get('passwordConfirm').value\n *       ? null : {'mismatch': true};\n * }\n * ```\n *\n * Like `FormControl` instances, you choose to pass in\n * validators and async validators as part of an options object.\n *\n * ```\n * const form = new FormGroup({\n *   password: new FormControl('')\n *   passwordConfirm: new FormControl('')\n * }, { validators: passwordMatchValidator, asyncValidators: otherValidator });\n * ```\n *\n * ### Set the updateOn property for all controls in a form group\n *\n * The options object is used to set a default value for each child\n * control's `updateOn` property. If you set `updateOn` to `'blur'` at the\n * group level, all child controls default to 'blur', unless the child\n * has explicitly specified a different `updateOn` value.\n *\n * ```ts\n * const c = new FormGroup({\n *   one: new FormControl()\n * }, { updateOn: 'blur' });\n * ```\n *\n * \\@publicApi\n */\nclass FormGroup extends AbstractControl {\n    /**\n     * Creates a new `FormGroup` instance.\n     *\n     * @param {?} controls A collection of child controls. The key for each child is the name\n     * under which it is registered.\n     *\n     * @param {?=} validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or an `AbstractControlOptions` object that contains validation functions\n     * and a validation trigger.\n     *\n     * @param {?=} asyncValidator A single async validator or array of async validator functions\n     *\n     */\n    constructor(controls, validatorOrOpts, asyncValidator) {\n        super(coerceToValidator(validatorOrOpts), coerceToAsyncValidator(asyncValidator, validatorOrOpts));\n        this.controls = controls;\n        this._initObservables();\n        this._setUpdateStrategy(validatorOrOpts);\n        this._setUpControls();\n        this.updateValueAndValidity({ onlySelf: true, emitEvent: false });\n    }\n    /**\n     * Registers a control with the group's list of controls.\n     *\n     * This method does not update the value or validity of the control.\n     * Use {\\@link FormGroup#addControl addControl} instead.\n     *\n     * @param {?} name The control name to register in the collection\n     * @param {?} control Provides the control for the given name\n     * @return {?}\n     */\n    registerControl(name, control) {\n        if (this.controls[name])\n            return this.controls[name];\n        this.controls[name] = control;\n        control.setParent(this);\n        control._registerOnCollectionChange(this._onCollectionChange);\n        return control;\n    }\n    /**\n     * Add a control to this group.\n     *\n     * This method also updates the value and validity of the control.\n     *\n     * @param {?} name The control name to add to the collection\n     * @param {?} control Provides the control for the given name\n     * @return {?}\n     */\n    addControl(name, control) {\n        this.registerControl(name, control);\n        this.updateValueAndValidity();\n        this._onCollectionChange();\n    }\n    /**\n     * Remove a control from this group.\n     *\n     * @param {?} name The control name to remove from the collection\n     * @return {?}\n     */\n    removeControl(name) {\n        if (this.controls[name])\n            this.controls[name]._registerOnCollectionChange((/**\n             * @return {?}\n             */\n            () => { }));\n        delete (this.controls[name]);\n        this.updateValueAndValidity();\n        this._onCollectionChange();\n    }\n    /**\n     * Replace an existing control.\n     *\n     * @param {?} name The control name to replace in the collection\n     * @param {?} control Provides the control for the given name\n     * @return {?}\n     */\n    setControl(name, control) {\n        if (this.controls[name])\n            this.controls[name]._registerOnCollectionChange((/**\n             * @return {?}\n             */\n            () => { }));\n        delete (this.controls[name]);\n        if (control)\n            this.registerControl(name, control);\n        this.updateValueAndValidity();\n        this._onCollectionChange();\n    }\n    /**\n     * Check whether there is an enabled control with the given name in the group.\n     *\n     * Reports false for disabled controls. If you'd like to check for existence in the group\n     * only, use {\\@link AbstractControl#get get} instead.\n     *\n     * @param {?} controlName The control name to check for existence in the collection\n     *\n     * @return {?} false for disabled controls, true otherwise.\n     */\n    contains(controlName) {\n        return this.controls.hasOwnProperty(controlName) && this.controls[controlName].enabled;\n    }\n    /**\n     * Sets the value of the `FormGroup`. It accepts an object that matches\n     * the structure of the group, with control names as keys.\n     *\n     * \\@usageNotes\n     * ### Set the complete value for the form group\n     *\n     * ```\n     * const form = new FormGroup({\n     *   first: new FormControl(),\n     *   last: new FormControl()\n     * });\n     *\n     * console.log(form.value);   // {first: null, last: null}\n     *\n     * form.setValue({first: 'Nancy', last: 'Drew'});\n     * console.log(form.value);   // {first: 'Nancy', last: 'Drew'}\n     * ```\n     *\n     * @throws When strict checks fail, such as setting the value of a control\n     * that doesn't exist or if you exclude a value of a control that does exist.\n     *\n     * @param {?} value The new value for the control that matches the structure of the group.\n     * @param {?=} options Configuration options that determine how the control propagates changes\n     * and emits events after the value changes.\n     * The configuration options are passed to the {\\@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default is\n     * false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control value is updated.\n     * When false, no events are emitted.\n     * @return {?}\n     */\n    setValue(value, options = {}) {\n        this._checkAllValuesPresent(value);\n        Object.keys(value).forEach((/**\n         * @param {?} name\n         * @return {?}\n         */\n        name => {\n            this._throwIfControlMissing(name);\n            this.controls[name].setValue(value[name], { onlySelf: true, emitEvent: options.emitEvent });\n        }));\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Patches the value of the `FormGroup`. It accepts an object with control\n     * names as keys, and does its best to match the values to the correct controls\n     * in the group.\n     *\n     * It accepts both super-sets and sub-sets of the group without throwing an error.\n     *\n     * \\@usageNotes\n     * ### Patch the value for a form group\n     *\n     * ```\n     * const form = new FormGroup({\n     *    first: new FormControl(),\n     *    last: new FormControl()\n     * });\n     * console.log(form.value);   // {first: null, last: null}\n     *\n     * form.patchValue({first: 'Nancy'});\n     * console.log(form.value);   // {first: 'Nancy', last: null}\n     * ```\n     *\n     * @param {?} value The object that matches the structure of the group.\n     * @param {?=} options Configuration options that determine how the control propagates changes and\n     * emits events after the value is patched.\n     * * `onlySelf`: When true, each change only affects this control and not its parent. Default is\n     * true.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control value is updated.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {\\@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     * @return {?}\n     */\n    patchValue(value, options = {}) {\n        Object.keys(value).forEach((/**\n         * @param {?} name\n         * @return {?}\n         */\n        name => {\n            if (this.controls[name]) {\n                this.controls[name].patchValue(value[name], { onlySelf: true, emitEvent: options.emitEvent });\n            }\n        }));\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Resets the `FormGroup`, marks all descendants are marked `pristine` and `untouched`, and\n     * the value of all descendants to null.\n     *\n     * You reset to a specific form state by passing in a map of states\n     * that matches the structure of your form, with control names as keys. The state\n     * is a standalone value or a form state object with both a value and a disabled\n     * status.\n     *\n     * \\@usageNotes\n     *\n     * ### Reset the form group values\n     *\n     * ```ts\n     * const form = new FormGroup({\n     *   first: new FormControl('first name'),\n     *   last: new FormControl('last name')\n     * });\n     *\n     * console.log(form.value);  // {first: 'first name', last: 'last name'}\n     *\n     * form.reset({ first: 'name', last: 'last name' });\n     *\n     * console.log(form.value);  // {first: 'name', last: 'last name'}\n     * ```\n     *\n     * ### Reset the form group values and disabled status\n     *\n     * ```\n     * const form = new FormGroup({\n     *   first: new FormControl('first name'),\n     *   last: new FormControl('last name')\n     * });\n     *\n     * form.reset({\n     *   first: {value: 'name', disabled: true},\n     *   last: 'last'\n     * });\n     *\n     * console.log(this.form.value);  // {first: 'name', last: 'last name'}\n     * console.log(this.form.get('first').status);  // 'DISABLED'\n     * ```\n     * @param {?=} value Resets the control with an initial value,\n     * or an object that defines the initial value and disabled state.\n     *\n     * @param {?=} options Configuration options that determine how the control propagates changes\n     * and emits events when the group is reset.\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default is\n     * false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is reset.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {\\@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     *\n     * @return {?}\n     */\n    reset(value = {}, options = {}) {\n        this._forEachChild((/**\n         * @param {?} control\n         * @param {?} name\n         * @return {?}\n         */\n        (control, name) => {\n            control.reset(value[name], { onlySelf: true, emitEvent: options.emitEvent });\n        }));\n        this._updatePristine(options);\n        this._updateTouched(options);\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * The aggregate value of the `FormGroup`, including any disabled controls.\n     *\n     * Retrieves all values regardless of disabled status.\n     * The `value` property is the best way to get the value of the group, because\n     * it excludes disabled controls in the `FormGroup`.\n     * @return {?}\n     */\n    getRawValue() {\n        return this._reduceChildren({}, (/**\n         * @param {?} acc\n         * @param {?} control\n         * @param {?} name\n         * @return {?}\n         */\n        (acc, control, name) => {\n            acc[name] = control instanceof FormControl ? control.value : ((/** @type {?} */ (control))).getRawValue();\n            return acc;\n        }));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _syncPendingControls() {\n        /** @type {?} */\n        let subtreeUpdated = this._reduceChildren(false, (/**\n         * @param {?} updated\n         * @param {?} child\n         * @return {?}\n         */\n        (updated, child) => {\n            return child._syncPendingControls() ? true : updated;\n        }));\n        if (subtreeUpdated)\n            this.updateValueAndValidity({ onlySelf: true });\n        return subtreeUpdated;\n    }\n    /**\n     * \\@internal\n     * @param {?} name\n     * @return {?}\n     */\n    _throwIfControlMissing(name) {\n        if (!Object.keys(this.controls).length) {\n            throw new Error(`\n        There are no form controls registered with this group yet.  If you're using ngModel,\n        you may want to check next tick (e.g. use setTimeout).\n      `);\n        }\n        if (!this.controls[name]) {\n            throw new Error(`Cannot find form control with name: ${name}.`);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} cb\n     * @return {?}\n     */\n    _forEachChild(cb) {\n        Object.keys(this.controls).forEach((/**\n         * @param {?} k\n         * @return {?}\n         */\n        k => cb(this.controls[k], k)));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _setUpControls() {\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            control.setParent(this);\n            control._registerOnCollectionChange(this._onCollectionChange);\n        }));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _updateValue() {\n        ((/** @type {?} */ (this))).value = this._reduceValue();\n    }\n    /**\n     * \\@internal\n     * @param {?} condition\n     * @return {?}\n     */\n    _anyControls(condition) {\n        /** @type {?} */\n        let res = false;\n        this._forEachChild((/**\n         * @param {?} control\n         * @param {?} name\n         * @return {?}\n         */\n        (control, name) => {\n            res = res || (this.contains(name) && condition(control));\n        }));\n        return res;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _reduceValue() {\n        return this._reduceChildren({}, (/**\n         * @param {?} acc\n         * @param {?} control\n         * @param {?} name\n         * @return {?}\n         */\n        (acc, control, name) => {\n            if (control.enabled || this.disabled) {\n                acc[name] = control.value;\n            }\n            return acc;\n        }));\n    }\n    /**\n     * \\@internal\n     * @param {?} initValue\n     * @param {?} fn\n     * @return {?}\n     */\n    _reduceChildren(initValue, fn) {\n        /** @type {?} */\n        let res = initValue;\n        this._forEachChild((/**\n         * @param {?} control\n         * @param {?} name\n         * @return {?}\n         */\n        (control, name) => {\n            res = fn(res, control, name);\n        }));\n        return res;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _allControlsDisabled() {\n        for (const controlName of Object.keys(this.controls)) {\n            if (this.controls[controlName].enabled) {\n                return false;\n            }\n        }\n        return Object.keys(this.controls).length > 0 || this.disabled;\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _checkAllValuesPresent(value) {\n        this._forEachChild((/**\n         * @param {?} control\n         * @param {?} name\n         * @return {?}\n         */\n        (control, name) => {\n            if (value[name] === undefined) {\n                throw new Error(`Must supply a value for form control with name: '${name}'.`);\n            }\n        }));\n    }\n}\nif (false) {\n    /** @type {?} */\n    FormGroup.prototype.controls;\n}\n/**\n * Tracks the value and validity state of an array of `FormControl`,\n * `FormGroup` or `FormArray` instances.\n *\n * A `FormArray` aggregates the values of each child `FormControl` into an array.\n * It calculates its status by reducing the status values of its children. For example, if one of\n * the controls in a `FormArray` is invalid, the entire array becomes invalid.\n *\n * `FormArray` is one of the three fundamental building blocks used to define forms in Angular,\n * along with `FormControl` and `FormGroup`.\n *\n * \\@usageNotes\n *\n * ### Create an array of form controls\n *\n * ```\n * const arr = new FormArray([\n *   new FormControl('Nancy', Validators.minLength(2)),\n *   new FormControl('Drew'),\n * ]);\n *\n * console.log(arr.value);   // ['Nancy', 'Drew']\n * console.log(arr.status);  // 'VALID'\n * ```\n *\n * ### Create a form array with array-level validators\n *\n * You include array-level validators and async validators. These come in handy\n * when you want to perform validation that considers the value of more than one child\n * control.\n *\n * The two types of validators are passed in separately as the second and third arg\n * respectively, or together as part of an options object.\n *\n * ```\n * const arr = new FormArray([\n *   new FormControl('Nancy'),\n *   new FormControl('Drew')\n * ], {validators: myValidator, asyncValidators: myAsyncValidator});\n * ```\n *\n * ### Set the updateOn property for all controls in a form array\n *\n * The options object is used to set a default value for each child\n * control's `updateOn` property. If you set `updateOn` to `'blur'` at the\n * array level, all child controls default to 'blur', unless the child\n * has explicitly specified a different `updateOn` value.\n *\n * ```ts\n * const arr = new FormArray([\n *    new FormControl()\n * ], {updateOn: 'blur'});\n * ```\n *\n * ### Adding or removing controls from a form array\n *\n * To change the controls in the array, use the `push`, `insert`, `removeAt` or `clear` methods\n * in `FormArray` itself. These methods ensure the controls are properly tracked in the\n * form's hierarchy. Do not modify the array of `AbstractControl`s used to instantiate\n * the `FormArray` directly, as that result in strange and unexpected behavior such\n * as broken change detection.\n *\n * \\@publicApi\n */\nclass FormArray extends AbstractControl {\n    /**\n     * Creates a new `FormArray` instance.\n     *\n     * @param {?} controls An array of child controls. Each child control is given an index\n     * where it is registered.\n     *\n     * @param {?=} validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or an `AbstractControlOptions` object that contains validation functions\n     * and a validation trigger.\n     *\n     * @param {?=} asyncValidator A single async validator or array of async validator functions\n     *\n     */\n    constructor(controls, validatorOrOpts, asyncValidator) {\n        super(coerceToValidator(validatorOrOpts), coerceToAsyncValidator(asyncValidator, validatorOrOpts));\n        this.controls = controls;\n        this._initObservables();\n        this._setUpdateStrategy(validatorOrOpts);\n        this._setUpControls();\n        this.updateValueAndValidity({ onlySelf: true, emitEvent: false });\n    }\n    /**\n     * Get the `AbstractControl` at the given `index` in the array.\n     *\n     * @param {?} index Index in the array to retrieve the control\n     * @return {?}\n     */\n    at(index) {\n        return this.controls[index];\n    }\n    /**\n     * Insert a new `AbstractControl` at the end of the array.\n     *\n     * @param {?} control Form control to be inserted\n     * @return {?}\n     */\n    push(control) {\n        this.controls.push(control);\n        this._registerControl(control);\n        this.updateValueAndValidity();\n        this._onCollectionChange();\n    }\n    /**\n     * Insert a new `AbstractControl` at the given `index` in the array.\n     *\n     * @param {?} index Index in the array to insert the control\n     * @param {?} control Form control to be inserted\n     * @return {?}\n     */\n    insert(index, control) {\n        this.controls.splice(index, 0, control);\n        this._registerControl(control);\n        this.updateValueAndValidity();\n    }\n    /**\n     * Remove the control at the given `index` in the array.\n     *\n     * @param {?} index Index in the array to remove the control\n     * @return {?}\n     */\n    removeAt(index) {\n        if (this.controls[index])\n            this.controls[index]._registerOnCollectionChange((/**\n             * @return {?}\n             */\n            () => { }));\n        this.controls.splice(index, 1);\n        this.updateValueAndValidity();\n    }\n    /**\n     * Replace an existing control.\n     *\n     * @param {?} index Index in the array to replace the control\n     * @param {?} control The `AbstractControl` control to replace the existing control\n     * @return {?}\n     */\n    setControl(index, control) {\n        if (this.controls[index])\n            this.controls[index]._registerOnCollectionChange((/**\n             * @return {?}\n             */\n            () => { }));\n        this.controls.splice(index, 1);\n        if (control) {\n            this.controls.splice(index, 0, control);\n            this._registerControl(control);\n        }\n        this.updateValueAndValidity();\n        this._onCollectionChange();\n    }\n    /**\n     * Length of the control array.\n     * @return {?}\n     */\n    get length() {\n        return this.controls.length;\n    }\n    /**\n     * Sets the value of the `FormArray`. It accepts an array that matches\n     * the structure of the control.\n     *\n     * This method performs strict checks, and throws an error if you try\n     * to set the value of a control that doesn't exist or if you exclude the\n     * value of a control.\n     *\n     * \\@usageNotes\n     * ### Set the values for the controls in the form array\n     *\n     * ```\n     * const arr = new FormArray([\n     *   new FormControl(),\n     *   new FormControl()\n     * ]);\n     * console.log(arr.value);   // [null, null]\n     *\n     * arr.setValue(['Nancy', 'Drew']);\n     * console.log(arr.value);   // ['Nancy', 'Drew']\n     * ```\n     *\n     * @param {?} value Array of values for the controls\n     * @param {?=} options Configure options that determine how the control propagates changes and\n     * emits events after the value changes\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default\n     * is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control value is updated.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {\\@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     * @return {?}\n     */\n    setValue(value, options = {}) {\n        this._checkAllValuesPresent(value);\n        value.forEach((/**\n         * @param {?} newValue\n         * @param {?} index\n         * @return {?}\n         */\n        (newValue, index) => {\n            this._throwIfControlMissing(index);\n            this.at(index).setValue(newValue, { onlySelf: true, emitEvent: options.emitEvent });\n        }));\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Patches the value of the `FormArray`. It accepts an array that matches the\n     * structure of the control, and does its best to match the values to the correct\n     * controls in the group.\n     *\n     * It accepts both super-sets and sub-sets of the array without throwing an error.\n     *\n     * \\@usageNotes\n     * ### Patch the values for controls in a form array\n     *\n     * ```\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     * console.log(arr.value);   // [null, null]\n     *\n     * arr.patchValue(['Nancy']);\n     * console.log(arr.value);   // ['Nancy', null]\n     * ```\n     *\n     * @param {?} value Array of latest values for the controls\n     * @param {?=} options Configure options that determine how the control propagates changes and\n     * emits events after the value changes\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default\n     * is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control value is updated.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {\\@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     * @return {?}\n     */\n    patchValue(value, options = {}) {\n        value.forEach((/**\n         * @param {?} newValue\n         * @param {?} index\n         * @return {?}\n         */\n        (newValue, index) => {\n            if (this.at(index)) {\n                this.at(index).patchValue(newValue, { onlySelf: true, emitEvent: options.emitEvent });\n            }\n        }));\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * Resets the `FormArray` and all descendants are marked `pristine` and `untouched`, and the\n     * value of all descendants to null or null maps.\n     *\n     * You reset to a specific form state by passing in an array of states\n     * that matches the structure of the control. The state is a standalone value\n     * or a form state object with both a value and a disabled status.\n     *\n     * \\@usageNotes\n     * ### Reset the values in a form array\n     *\n     * ```ts\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     * arr.reset(['name', 'last name']);\n     *\n     * console.log(this.arr.value);  // ['name', 'last name']\n     * ```\n     *\n     * ### Reset the values in a form array and the disabled status for the first control\n     *\n     * ```\n     * this.arr.reset([\n     *   {value: 'name', disabled: true},\n     *   'last'\n     * ]);\n     *\n     * console.log(this.arr.value);  // ['name', 'last name']\n     * console.log(this.arr.get(0).status);  // 'DISABLED'\n     * ```\n     *\n     * @param {?=} value Array of values for the controls\n     * @param {?=} options Configure options that determine how the control propagates changes and\n     * emits events after the value changes\n     *\n     * * `onlySelf`: When true, each change only affects this control, and not its parent. Default\n     * is false.\n     * * `emitEvent`: When true or not supplied (the default), both the `statusChanges` and\n     * `valueChanges`\n     * observables emit events with the latest status and value when the control is reset.\n     * When false, no events are emitted.\n     * The configuration options are passed to the {\\@link AbstractControl#updateValueAndValidity\n     * updateValueAndValidity} method.\n     * @return {?}\n     */\n    reset(value = [], options = {}) {\n        this._forEachChild((/**\n         * @param {?} control\n         * @param {?} index\n         * @return {?}\n         */\n        (control, index) => {\n            control.reset(value[index], { onlySelf: true, emitEvent: options.emitEvent });\n        }));\n        this._updatePristine(options);\n        this._updateTouched(options);\n        this.updateValueAndValidity(options);\n    }\n    /**\n     * The aggregate value of the array, including any disabled controls.\n     *\n     * Reports all values regardless of disabled status.\n     * For enabled controls only, the `value` property is the best way to get the value of the array.\n     * @return {?}\n     */\n    getRawValue() {\n        return this.controls.map((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => {\n            return control instanceof FormControl ? control.value : ((/** @type {?} */ (control))).getRawValue();\n        }));\n    }\n    /**\n     * Remove all controls in the `FormArray`.\n     *\n     * \\@usageNotes\n     * ### Remove all elements from a FormArray\n     *\n     * ```ts\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     * console.log(arr.length);  // 2\n     *\n     * arr.clear();\n     * console.log(arr.length);  // 0\n     * ```\n     *\n     * It's a simpler and more efficient alternative to removing all elements one by one:\n     *\n     * ```ts\n     * const arr = new FormArray([\n     *    new FormControl(),\n     *    new FormControl()\n     * ]);\n     *\n     * while (arr.length) {\n     *    arr.removeAt(0);\n     * }\n     * ```\n     * @return {?}\n     */\n    clear() {\n        if (this.controls.length < 1)\n            return;\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => control._registerOnCollectionChange((/**\n         * @return {?}\n         */\n        () => { }))));\n        this.controls.splice(0);\n        this.updateValueAndValidity();\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _syncPendingControls() {\n        /** @type {?} */\n        let subtreeUpdated = this.controls.reduce((/**\n         * @param {?} updated\n         * @param {?} child\n         * @return {?}\n         */\n        (updated, child) => {\n            return child._syncPendingControls() ? true : updated;\n        }), false);\n        if (subtreeUpdated)\n            this.updateValueAndValidity({ onlySelf: true });\n        return subtreeUpdated;\n    }\n    /**\n     * \\@internal\n     * @param {?} index\n     * @return {?}\n     */\n    _throwIfControlMissing(index) {\n        if (!this.controls.length) {\n            throw new Error(`\n        There are no form controls registered with this array yet.  If you're using ngModel,\n        you may want to check next tick (e.g. use setTimeout).\n      `);\n        }\n        if (!this.at(index)) {\n            throw new Error(`Cannot find form control at index ${index}`);\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} cb\n     * @return {?}\n     */\n    _forEachChild(cb) {\n        this.controls.forEach((/**\n         * @param {?} control\n         * @param {?} index\n         * @return {?}\n         */\n        (control, index) => {\n            cb(control, index);\n        }));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _updateValue() {\n        ((/** @type {?} */ (this))).value =\n            this.controls.filter((/**\n             * @param {?} control\n             * @return {?}\n             */\n            (control) => control.enabled || this.disabled))\n                .map((/**\n             * @param {?} control\n             * @return {?}\n             */\n            (control) => control.value));\n    }\n    /**\n     * \\@internal\n     * @param {?} condition\n     * @return {?}\n     */\n    _anyControls(condition) {\n        return this.controls.some((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => control.enabled && condition(control)));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _setUpControls() {\n        this._forEachChild((/**\n         * @param {?} control\n         * @return {?}\n         */\n        (control) => this._registerControl(control)));\n    }\n    /**\n     * \\@internal\n     * @param {?} value\n     * @return {?}\n     */\n    _checkAllValuesPresent(value) {\n        this._forEachChild((/**\n         * @param {?} control\n         * @param {?} i\n         * @return {?}\n         */\n        (control, i) => {\n            if (value[i] === undefined) {\n                throw new Error(`Must supply a value for form control at index: ${i}.`);\n            }\n        }));\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _allControlsDisabled() {\n        for (const control of this.controls) {\n            if (control.enabled)\n                return false;\n        }\n        return this.controls.length > 0 || this.disabled;\n    }\n    /**\n     * @private\n     * @param {?} control\n     * @return {?}\n     */\n    _registerControl(control) {\n        control.setParent(this);\n        control._registerOnCollectionChange(this._onCollectionChange);\n    }\n}\nif (false) {\n    /** @type {?} */\n    FormArray.prototype.controls;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/ng_form.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst formDirectiveProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => NgForm))\n};\nconst ɵ0 = /**\n * @return {?}\n */\n() => Promise.resolve(null);\n/** @type {?} */\nconst resolvedPromise = ((ɵ0))();\n/**\n * \\@description\n * Creates a top-level `FormGroup` instance and binds it to a form\n * to track aggregate form value and validation status.\n *\n * As soon as you import the `FormsModule`, this directive becomes active by default on\n * all `<form>` tags.  You don't need to add a special selector.\n *\n * You optionally export the directive into a local template variable using `ngForm` as the key\n * (ex: `#myForm=\"ngForm\"`). This is optional, but useful.  Many properties from the underlying\n * `FormGroup` instance are duplicated on the directive itself, so a reference to it\n * gives you access to the aggregate value and validity status of the form, as well as\n * user interaction properties like `dirty` and `touched`.\n *\n * To register child controls with the form, use `NgModel` with a `name`\n * attribute. You may use `NgModelGroup` to create sub-groups within the form.\n *\n * If necessary, listen to the directive's `ngSubmit` event to be notified when the user has\n * triggered a form submission. The `ngSubmit` event emits the original form\n * submission event.\n *\n * In template driven forms, all `<form>` tags are automatically tagged as `NgForm`.\n * To import the `FormsModule` but skip its usage in some forms,\n * for example, to use native HTML5 validation, add the `ngNoForm` and the `<form>`\n * tags won't create an `NgForm` directive. In reactive forms, using `ngNoForm` is\n * unnecessary because the `<form>` tags are inert. In that case, you would\n * refrain from using the `formGroup` directive.\n *\n * \\@usageNotes\n *\n * ### Listening for form submission\n *\n * The following example shows how to capture the form values from the \"ngSubmit\" event.\n *\n * {\\@example forms/ts/simpleForm/simple_form_example.ts region='Component'}\n *\n * ### Setting the update options\n *\n * The following example shows you how to change the \"updateOn\" option from its default using\n * ngFormOptions.\n *\n * ```html\n * <form [ngFormOptions]=\"{updateOn: 'blur'}\">\n *    <input name=\"one\" ngModel>  <!-- this ngModel will update on blur -->\n * </form>\n * ```\n *\n * ### Native DOM validation UI\n *\n * In order to prevent the native DOM form validation UI from interfering with Angular's form\n * validation, Angular automatically adds the `novalidate` attribute on any `<form>` whenever\n * `FormModule` or `ReactiveFormModule` are imported into the application.\n * If you want to explicitly enable native DOM validation UI with Angular forms, you can add the\n * `ngNativeValidate` attribute to the `<form>` element:\n *\n * ```html\n * <form ngNativeValidate>\n *   ...\n * </form>\n * ```\n *\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass NgForm extends ControlContainer {\n    /**\n     * @param {?} validators\n     * @param {?} asyncValidators\n     */\n    constructor(validators, asyncValidators) {\n        super();\n        /**\n         * \\@description\n         * Returns whether the form submission has been triggered.\n         */\n        this.submitted = false;\n        this._directives = [];\n        /**\n         * \\@description\n         * Event emitter for the \"ngSubmit\" event\n         */\n        this.ngSubmit = new EventEmitter();\n        this.form =\n            new FormGroup({}, composeValidators(validators), composeAsyncValidators(asyncValidators));\n    }\n    /**\n     * \\@description\n     * Lifecycle method called after the view is initialized. For internal use only.\n     * @return {?}\n     */\n    ngAfterViewInit() {\n        this._setUpdateStrategy();\n    }\n    /**\n     * \\@description\n     * The directive instance.\n     * @return {?}\n     */\n    get formDirective() {\n        return this;\n    }\n    /**\n     * \\@description\n     * The internal `FormGroup` instance.\n     * @return {?}\n     */\n    get control() {\n        return this.form;\n    }\n    /**\n     * \\@description\n     * Returns an array representing the path to this group. Because this directive\n     * always lives at the top level of a form, it is always an empty array.\n     * @return {?}\n     */\n    get path() {\n        return [];\n    }\n    /**\n     * \\@description\n     * Returns a map of the controls in this group.\n     * @return {?}\n     */\n    get controls() {\n        return this.form.controls;\n    }\n    /**\n     * \\@description\n     * Method that sets up the control directive in this group, re-calculates its value\n     * and validity, and adds the instance to the internal list of directives.\n     *\n     * @param {?} dir The `NgModel` directive instance.\n     * @return {?}\n     */\n    addControl(dir) {\n        resolvedPromise.then((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const container = this._findContainer(dir.path);\n            ((/** @type {?} */ (dir))).control =\n                (/** @type {?} */ (container.registerControl(dir.name, dir.control)));\n            setUpControl(dir.control, dir);\n            dir.control.updateValueAndValidity({ emitEvent: false });\n            this._directives.push(dir);\n        }));\n    }\n    /**\n     * \\@description\n     * Retrieves the `FormControl` instance from the provided `NgModel` directive.\n     *\n     * @param {?} dir The `NgModel` directive instance.\n     * @return {?}\n     */\n    getControl(dir) {\n        return (/** @type {?} */ (this.form.get(dir.path)));\n    }\n    /**\n     * \\@description\n     * Removes the `NgModel` instance from the internal list of directives\n     *\n     * @param {?} dir The `NgModel` directive instance.\n     * @return {?}\n     */\n    removeControl(dir) {\n        resolvedPromise.then((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const container = this._findContainer(dir.path);\n            if (container) {\n                container.removeControl(dir.name);\n            }\n            removeDir(this._directives, dir);\n        }));\n    }\n    /**\n     * \\@description\n     * Adds a new `NgModelGroup` directive instance to the form.\n     *\n     * @param {?} dir The `NgModelGroup` directive instance.\n     * @return {?}\n     */\n    addFormGroup(dir) {\n        resolvedPromise.then((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const container = this._findContainer(dir.path);\n            /** @type {?} */\n            const group = new FormGroup({});\n            setUpFormContainer(group, dir);\n            container.registerControl(dir.name, group);\n            group.updateValueAndValidity({ emitEvent: false });\n        }));\n    }\n    /**\n     * \\@description\n     * Removes the `NgModelGroup` directive instance from the form.\n     *\n     * @param {?} dir The `NgModelGroup` directive instance.\n     * @return {?}\n     */\n    removeFormGroup(dir) {\n        resolvedPromise.then((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const container = this._findContainer(dir.path);\n            if (container) {\n                container.removeControl(dir.name);\n            }\n        }));\n    }\n    /**\n     * \\@description\n     * Retrieves the `FormGroup` for a provided `NgModelGroup` directive instance\n     *\n     * @param {?} dir The `NgModelGroup` directive instance.\n     * @return {?}\n     */\n    getFormGroup(dir) {\n        return (/** @type {?} */ (this.form.get(dir.path)));\n    }\n    /**\n     * Sets the new value for the provided `NgControl` directive.\n     *\n     * @param {?} dir The `NgControl` directive instance.\n     * @param {?} value The new value for the directive's control.\n     * @return {?}\n     */\n    updateModel(dir, value) {\n        resolvedPromise.then((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const ctrl = (/** @type {?} */ (this.form.get((/** @type {?} */ (dir.path)))));\n            ctrl.setValue(value);\n        }));\n    }\n    /**\n     * \\@description\n     * Sets the value for this `FormGroup`.\n     *\n     * @param {?} value The new value\n     * @return {?}\n     */\n    setValue(value) {\n        this.control.setValue(value);\n    }\n    /**\n     * \\@description\n     * Method called when the \"submit\" event is triggered on the form.\n     * Triggers the `ngSubmit` emitter to emit the \"submit\" event as its payload.\n     *\n     * @param {?} $event The \"submit\" event object\n     * @return {?}\n     */\n    onSubmit($event) {\n        ((/** @type {?} */ (this))).submitted = true;\n        syncPendingControls(this.form, this._directives);\n        this.ngSubmit.emit($event);\n        return false;\n    }\n    /**\n     * \\@description\n     * Method called when the \"reset\" event is triggered on the form.\n     * @return {?}\n     */\n    onReset() {\n        this.resetForm();\n    }\n    /**\n     * \\@description\n     * Resets the form to an initial value and resets its submitted status.\n     *\n     * @param {?=} value The new value for the form.\n     * @return {?}\n     */\n    resetForm(value = undefined) {\n        this.form.reset(value);\n        ((/** @type {?} */ (this))).submitted = false;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _setUpdateStrategy() {\n        if (this.options && this.options.updateOn != null) {\n            this.form._updateOn = this.options.updateOn;\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} path\n     * @return {?}\n     */\n    _findContainer(path) {\n        path.pop();\n        return path.length ? (/** @type {?} */ (this.form.get(path))) : this.form;\n    }\n}\nNgForm.ɵfac = function NgForm_Factory(t) { return new (t || NgForm)(ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10)); };\nNgForm.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgForm, selectors: [[\"form\", 3, \"ngNoForm\", \"\", 3, \"formGroup\", \"\"], [\"ng-form\"], [\"\", \"ngForm\", \"\"]], hostBindings: function NgForm_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"submit\", function NgForm_submit_HostBindingHandler($event) { return ctx.onSubmit($event); })(\"reset\", function NgForm_reset_HostBindingHandler() { return ctx.onReset(); });\n    } }, inputs: { options: [\"ngFormOptions\", \"options\"] }, outputs: { ngSubmit: \"ngSubmit\" }, exportAs: [\"ngForm\"], features: [ɵngcc0.ɵɵProvidersFeature([formDirectiveProvider]), ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nNgForm.ctorParameters = () => [\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] }\n];\nNgForm.propDecorators = {\n    options: [{ type: Input, args: ['ngFormOptions',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgForm, [{\n        type: Directive,\n        args: [{\n                selector: 'form:not([ngNoForm]):not([formGroup]),ng-form,[ngForm]',\n                providers: [formDirectiveProvider],\n                host: { '(submit)': 'onSubmit($event)', '(reset)': 'onReset()' },\n                outputs: ['ngSubmit'],\n                exportAs: 'ngForm'\n            }]\n    }], function () { return [{ type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }]; }, { options: [{\n            type: Input,\n            args: ['ngFormOptions']\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * Returns whether the form submission has been triggered.\n     * @type {?}\n     */\n    NgForm.prototype.submitted;\n    /**\n     * @type {?}\n     * @private\n     */\n    NgForm.prototype._directives;\n    /**\n     * \\@description\n     * The `FormGroup` instance created for this form.\n     * @type {?}\n     */\n    NgForm.prototype.form;\n    /**\n     * \\@description\n     * Event emitter for the \"ngSubmit\" event\n     * @type {?}\n     */\n    NgForm.prototype.ngSubmit;\n    /**\n     * \\@description\n     * Tracks options for the `NgForm` instance.\n     *\n     * **updateOn**: Sets the default `updateOn` value for all child `NgModels` below it\n     * unless explicitly set by a child `NgModel` using `ngModelOptions`). Defaults to 'change'.\n     * Possible values: `'change'` | `'blur'` | `'submit'`.\n     *\n     * @type {?}\n     */\n    NgForm.prototype.options;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/abstract_form_group_directive.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@description\n * A base class for code shared between the `NgModelGroup` and `FormGroupName` directives.\n *\n * \\@publicApi\n */\nclass AbstractFormGroupDirective extends ControlContainer {\n    /**\n     * \\@description\n     * An internal callback method triggered on the instance after the inputs are set.\n     * Registers the group with its parent group.\n     * @return {?}\n     */\n    ngOnInit() {\n        this._checkParentType();\n        (/** @type {?} */ (this.formDirective)).addFormGroup(this);\n    }\n    /**\n     * \\@description\n     * An internal callback method triggered before the instance is destroyed.\n     * Removes the group from its parent group.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this.formDirective) {\n            this.formDirective.removeFormGroup(this);\n        }\n    }\n    /**\n     * \\@description\n     * The `FormGroup` bound to this directive.\n     * @return {?}\n     */\n    get control() {\n        return (/** @type {?} */ (this.formDirective)).getFormGroup(this);\n    }\n    /**\n     * \\@description\n     * The path to this group from the top-level directive.\n     * @return {?}\n     */\n    get path() {\n        return controlPath(this.name == null ? this.name : this.name.toString(), this._parent);\n    }\n    /**\n     * \\@description\n     * The top-level directive for this group if present, otherwise null.\n     * @return {?}\n     */\n    get formDirective() {\n        return this._parent ? this._parent.formDirective : null;\n    }\n    /**\n     * \\@description\n     * The synchronous validators registered with this group.\n     * @return {?}\n     */\n    get validator() {\n        return composeValidators(this._validators);\n    }\n    /**\n     * \\@description\n     * The async validators registered with this group.\n     * @return {?}\n     */\n    get asyncValidator() {\n        return composeAsyncValidators(this._asyncValidators);\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _checkParentType() { }\n}\nAbstractFormGroupDirective.ɵfac = function AbstractFormGroupDirective_Factory(t) { return ɵAbstractFormGroupDirective_BaseFactory(t || AbstractFormGroupDirective); };\nAbstractFormGroupDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: AbstractFormGroupDirective, features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵAbstractFormGroupDirective_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(AbstractFormGroupDirective);\nif (false) {\n    /**\n     * \\@description\n     * The parent control for the group\n     *\n     * \\@internal\n     * @type {?}\n     */\n    AbstractFormGroupDirective.prototype._parent;\n    /**\n     * \\@description\n     * An array of synchronous validators for the group\n     *\n     * \\@internal\n     * @type {?}\n     */\n    AbstractFormGroupDirective.prototype._validators;\n    /**\n     * \\@description\n     * An array of async validators for the group\n     *\n     * \\@internal\n     * @type {?}\n     */\n    AbstractFormGroupDirective.prototype._asyncValidators;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/template_driven_errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass TemplateDrivenErrors {\n    /**\n     * @return {?}\n     */\n    static modelParentException() {\n        throw new Error(`\n      ngModel cannot be used to register form controls with a parent formGroup directive.  Try using\n      formGroup's partner directive \"formControlName\" instead.  Example:\n\n      ${FormErrorExamples.formControlName}\n\n      Or, if you'd like to avoid registering this form control, indicate that it's standalone in ngModelOptions:\n\n      Example:\n\n      ${FormErrorExamples.ngModelWithFormGroup}`);\n    }\n    /**\n     * @return {?}\n     */\n    static formGroupNameException() {\n        throw new Error(`\n      ngModel cannot be used to register form controls with a parent formGroupName or formArrayName directive.\n\n      Option 1: Use formControlName instead of ngModel (reactive strategy):\n\n      ${FormErrorExamples.formGroupName}\n\n      Option 2:  Update ngModel's parent be ngModelGroup (template-driven strategy):\n\n      ${FormErrorExamples.ngModelGroup}`);\n    }\n    /**\n     * @return {?}\n     */\n    static missingNameException() {\n        throw new Error(`If ngModel is used within a form tag, either the name attribute must be set or the form\n      control must be defined as 'standalone' in ngModelOptions.\n\n      Example 1: <input [(ngModel)]=\"person.firstName\" name=\"first\">\n      Example 2: <input [(ngModel)]=\"person.firstName\" [ngModelOptions]=\"{standalone: true}\">`);\n    }\n    /**\n     * @return {?}\n     */\n    static modelGroupParentException() {\n        throw new Error(`\n      ngModelGroup cannot be used with a parent formGroup directive.\n\n      Option 1: Use formGroupName instead of ngModelGroup (reactive strategy):\n\n      ${FormErrorExamples.formGroupName}\n\n      Option 2:  Use a regular form tag instead of the formGroup directive (template-driven strategy):\n\n      ${FormErrorExamples.ngModelGroup}`);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/ng_model_group.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst modelGroupProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => NgModelGroup))\n};\n/**\n * \\@description\n * Creates and binds a `FormGroup` instance to a DOM element.\n *\n * This directive can only be used as a child of `NgForm` (within `<form>` tags).\n *\n * Use this directive to validate a sub-group of your form separately from the\n * rest of your form, or if some values in your domain model make more sense\n * to consume together in a nested object.\n *\n * Provide a name for the sub-group and it will become the key\n * for the sub-group in the form's full value. If you need direct access, export the directive into\n * a local template variable using `ngModelGroup` (ex: `#myGroup=\"ngModelGroup\"`).\n *\n * \\@usageNotes\n *\n * ### Consuming controls in a grouping\n *\n * The following example shows you how to combine controls together in a sub-group\n * of the form.\n *\n * {\\@example forms/ts/ngModelGroup/ng_model_group_example.ts region='Component'}\n *\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass NgModelGroup extends AbstractFormGroupDirective {\n    /**\n     * @param {?} parent\n     * @param {?} validators\n     * @param {?} asyncValidators\n     */\n    constructor(parent, validators, asyncValidators) {\n        super();\n        this._parent = parent;\n        this._validators = validators;\n        this._asyncValidators = asyncValidators;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _checkParentType() {\n        if (!(this._parent instanceof NgModelGroup) && !(this._parent instanceof NgForm)) {\n            TemplateDrivenErrors.modelGroupParentException();\n        }\n    }\n}\nNgModelGroup.ɵfac = function NgModelGroup_Factory(t) { return new (t || NgModelGroup)(ɵngcc0.ɵɵdirectiveInject(ControlContainer, 5), ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10)); };\nNgModelGroup.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgModelGroup, selectors: [[\"\", \"ngModelGroup\", \"\"]], inputs: { name: [\"ngModelGroup\", \"name\"] }, exportAs: [\"ngModelGroup\"], features: [ɵngcc0.ɵɵProvidersFeature([modelGroupProvider]), ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nNgModelGroup.ctorParameters = () => [\n    { type: ControlContainer, decorators: [{ type: Host }, { type: SkipSelf }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] }\n];\nNgModelGroup.propDecorators = {\n    name: [{ type: Input, args: ['ngModelGroup',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgModelGroup, [{\n        type: Directive,\n        args: [{ selector: '[ngModelGroup]', providers: [modelGroupProvider], exportAs: 'ngModelGroup' }]\n    }], function () { return [{ type: ControlContainer, decorators: [{\n                type: Host\n            }, {\n                type: SkipSelf\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }]; }, { name: [{\n            type: Input,\n            args: ['ngModelGroup']\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * Tracks the name of the `NgModelGroup` bound to the directive. The name corresponds\n     * to a key in the parent `NgForm`.\n     * @type {?}\n     */\n    NgModelGroup.prototype.name;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/ng_model.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst formControlBinding = {\n    provide: NgControl,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => NgModel))\n};\nconst ɵ0$1 = /**\n * @return {?}\n */\n() => Promise.resolve(null);\n/**\n * `ngModel` forces an additional change detection run when its inputs change:\n * E.g.:\n * ```\n * <div>{{myModel.valid}}</div>\n * <input [(ngModel)]=\"myValue\" #myModel=\"ngModel\">\n * ```\n * I.e. `ngModel` can export itself on the element and then be used in the template.\n * Normally, this would result in expressions before the `input` that use the exported directive\n * to have and old value as they have been\n * dirty checked before. As this is a very common case for `ngModel`, we added this second change\n * detection run.\n *\n * Notes:\n * - this is just one extra run no matter how many `ngModel` have been changed.\n * - this is a general problem when using `exportAs` for directives!\n * @type {?}\n */\nconst resolvedPromise$1 = ((ɵ0$1))();\n/**\n * \\@description\n * Creates a `FormControl` instance from a domain model and binds it\n * to a form control element.\n *\n * The `FormControl` instance tracks the value, user interaction, and\n * validation status of the control and keeps the view synced with the model. If used\n * within a parent form, the directive also registers itself with the form as a child\n * control.\n *\n * This directive is used by itself or as part of a larger form. Use the\n * `ngModel` selector to activate it.\n *\n * It accepts a domain model as an optional `Input`. If you have a one-way binding\n * to `ngModel` with `[]` syntax, changing the value of the domain model in the component\n * class sets the value in the view. If you have a two-way binding with `[()]` syntax\n * (also known as 'banana-box syntax'), the value in the UI always syncs back to\n * the domain model in your class.\n *\n * To inspect the properties of the associated `FormControl` (like validity state),\n * export the directive into a local template variable using `ngModel` as the key (ex:\n * `#myVar=\"ngModel\"`). You then access the control using the directive's `control` property, but\n * most properties used (like `valid` and `dirty`) fall through to the control anyway for direct\n * access. See a full list of properties directly available in `AbstractControlDirective`.\n *\n * @see `RadioControlValueAccessor`\n * @see `SelectControlValueAccessor`\n *\n * \\@usageNotes\n *\n * ### Using ngModel on a standalone control\n *\n * The following examples show a simple standalone control using `ngModel`:\n *\n * {\\@example forms/ts/simpleNgModel/simple_ng_model_example.ts region='Component'}\n *\n * When using the `ngModel` within `<form>` tags, you'll also need to supply a `name` attribute\n * so that the control can be registered with the parent form under that name.\n *\n * In the context of a parent form, it's often unnecessary to include one-way or two-way binding,\n * as the parent form syncs the value for you. You access its properties by exporting it into a\n * local template variable using `ngForm` such as (`#f=\"ngForm\"`). Use the variable where\n * needed on form submission.\n *\n * If you do need to populate initial values into your form, using a one-way binding for\n * `ngModel` tends to be sufficient as long as you use the exported form's value rather\n * than the domain model's value on submit.\n *\n * ### Using ngModel within a form\n *\n * The following example shows controls using `ngModel` within a form:\n *\n * {\\@example forms/ts/simpleForm/simple_form_example.ts region='Component'}\n *\n * ### Using a standalone ngModel within a group\n *\n * The following example shows you how to use a standalone ngModel control\n * within a form. This controls the display of the form, but doesn't contain form data.\n *\n * ```html\n * <form>\n *   <input name=\"login\" ngModel placeholder=\"Login\">\n *   <input type=\"checkbox\" ngModel [ngModelOptions]=\"{standalone: true}\"> Show more options?\n * </form>\n * <!-- form value: {login: ''} -->\n * ```\n *\n * ### Setting the ngModel name attribute through options\n *\n * The following example shows you an alternate way to set the name attribute. The name attribute is\n * used within a custom form component, and the name `\\@Input` property serves a different purpose.\n *\n * ```html\n * <form>\n *   <my-person-control name=\"Nancy\" ngModel [ngModelOptions]=\"{name: 'user'}\">\n *   </my-person-control>\n * </form>\n * <!-- form value: {user: ''} -->\n * ```\n *\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass NgModel extends NgControl {\n    /**\n     * @param {?} parent\n     * @param {?} validators\n     * @param {?} asyncValidators\n     * @param {?} valueAccessors\n     */\n    constructor(parent, validators, asyncValidators, valueAccessors) {\n        super();\n        this.control = new FormControl();\n        /**\n         * \\@internal\n         */\n        this._registered = false;\n        /**\n         * \\@description\n         * Event emitter for producing the `ngModelChange` event after\n         * the view model updates.\n         */\n        this.update = new EventEmitter();\n        this._parent = parent;\n        this._rawValidators = validators || [];\n        this._rawAsyncValidators = asyncValidators || [];\n        this.valueAccessor = selectValueAccessor(this, valueAccessors);\n    }\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs change. For internal use\n     * only.\n     *\n     * @param {?} changes A object of key/value pairs for the set of changed inputs.\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        this._checkForErrors();\n        if (!this._registered)\n            this._setUpControl();\n        if ('isDisabled' in changes) {\n            this._updateDisabled(changes);\n        }\n        if (isPropertyUpdated(changes, this.viewModel)) {\n            this._updateValue(this.model);\n            this.viewModel = this.model;\n        }\n    }\n    /**\n     * \\@description\n     * Lifecycle method called before the directive's instance is destroyed. For internal\n     * use only.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this.formDirective && this.formDirective.removeControl(this);\n    }\n    /**\n     * \\@description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     * @return {?}\n     */\n    get path() {\n        return this._parent ? controlPath(this.name, this._parent) : [this.name];\n    }\n    /**\n     * \\@description\n     * The top-level directive for this control if present, otherwise null.\n     * @return {?}\n     */\n    get formDirective() {\n        return this._parent ? this._parent.formDirective : null;\n    }\n    /**\n     * \\@description\n     * Synchronous validator function composed of all the synchronous validators\n     * registered with this directive.\n     * @return {?}\n     */\n    get validator() {\n        return composeValidators(this._rawValidators);\n    }\n    /**\n     * \\@description\n     * Async validator function composed of all the async validators registered with this\n     * directive.\n     * @return {?}\n     */\n    get asyncValidator() {\n        return composeAsyncValidators(this._rawAsyncValidators);\n    }\n    /**\n     * \\@description\n     * Sets the new value for the view model and emits an `ngModelChange` event.\n     *\n     * @param {?} newValue The new value emitted by `ngModelChange`.\n     * @return {?}\n     */\n    viewToModelUpdate(newValue) {\n        this.viewModel = newValue;\n        this.update.emit(newValue);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _setUpControl() {\n        this._setUpdateStrategy();\n        this._isStandalone() ? this._setUpStandalone() : this.formDirective.addControl(this);\n        this._registered = true;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _setUpdateStrategy() {\n        if (this.options && this.options.updateOn != null) {\n            this.control._updateOn = this.options.updateOn;\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _isStandalone() {\n        return !this._parent || !!(this.options && this.options.standalone);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _setUpStandalone() {\n        setUpControl(this.control, this);\n        this.control.updateValueAndValidity({ emitEvent: false });\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkForErrors() {\n        if (!this._isStandalone()) {\n            this._checkParentType();\n        }\n        this._checkName();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkParentType() {\n        if (!(this._parent instanceof NgModelGroup) &&\n            this._parent instanceof AbstractFormGroupDirective) {\n            TemplateDrivenErrors.formGroupNameException();\n        }\n        else if (!(this._parent instanceof NgModelGroup) && !(this._parent instanceof NgForm)) {\n            TemplateDrivenErrors.modelParentException();\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkName() {\n        if (this.options && this.options.name)\n            this.name = this.options.name;\n        if (!this._isStandalone() && !this.name) {\n            TemplateDrivenErrors.missingNameException();\n        }\n    }\n    /**\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _updateValue(value) {\n        resolvedPromise$1.then((/**\n         * @return {?}\n         */\n        () => {\n            this.control.setValue(value, { emitViewToModelChange: false });\n        }));\n    }\n    /**\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _updateDisabled(changes) {\n        /** @type {?} */\n        const disabledValue = changes['isDisabled'].currentValue;\n        /** @type {?} */\n        const isDisabled = disabledValue === '' || (disabledValue && disabledValue !== 'false');\n        resolvedPromise$1.then((/**\n         * @return {?}\n         */\n        () => {\n            if (isDisabled && !this.control.disabled) {\n                this.control.disable();\n            }\n            else if (!isDisabled && this.control.disabled) {\n                this.control.enable();\n            }\n        }));\n    }\n}\nNgModel.ɵfac = function NgModel_Factory(t) { return new (t || NgModel)(ɵngcc0.ɵɵdirectiveInject(ControlContainer, 9), ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_VALUE_ACCESSOR, 10)); };\nNgModel.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: NgModel, selectors: [[\"\", \"ngModel\", \"\", 3, \"formControlName\", \"\", 3, \"formControl\", \"\"]], inputs: { name: \"name\", isDisabled: [\"disabled\", \"isDisabled\"], model: [\"ngModel\", \"model\"], options: [\"ngModelOptions\", \"options\"] }, outputs: { update: \"ngModelChange\" }, exportAs: [\"ngModel\"], features: [ɵngcc0.ɵɵProvidersFeature([formControlBinding]), ɵngcc0.ɵɵInheritDefinitionFeature, ɵngcc0.ɵɵNgOnChangesFeature] });\n/** @nocollapse */\nNgModel.ctorParameters = () => [\n    { type: ControlContainer, decorators: [{ type: Optional }, { type: Host }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALUE_ACCESSOR,] }] }\n];\nNgModel.propDecorators = {\n    name: [{ type: Input }],\n    isDisabled: [{ type: Input, args: ['disabled',] }],\n    model: [{ type: Input, args: ['ngModel',] }],\n    options: [{ type: Input, args: ['ngModelOptions',] }],\n    update: [{ type: Output, args: ['ngModelChange',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NgModel, [{\n        type: Directive,\n        args: [{\n                selector: '[ngModel]:not([formControlName]):not([formControl])',\n                providers: [formControlBinding],\n                exportAs: 'ngModel'\n            }]\n    }], function () { return [{ type: ControlContainer, decorators: [{\n                type: Optional\n            }, {\n                type: Host\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALUE_ACCESSOR]\n            }] }]; }, { update: [{\n            type: Output,\n            args: ['ngModelChange']\n        }], name: [{\n            type: Input\n        }], isDisabled: [{\n            type: Input,\n            args: ['disabled']\n        }], model: [{\n            type: Input,\n            args: ['ngModel']\n        }], options: [{\n            type: Input,\n            args: ['ngModelOptions']\n        }] }); })();\nif (false) {\n    /**\n     * \\@nodoc\n     * @type {?}\n     */\n    NgModel.ngAcceptInputType_isDisabled;\n    /** @type {?} */\n    NgModel.prototype.control;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    NgModel.prototype._registered;\n    /**\n     * \\@description\n     * Internal reference to the view model value.\n     * @type {?}\n     */\n    NgModel.prototype.viewModel;\n    /**\n     * \\@description\n     * Tracks the name bound to the directive. The parent form\n     * uses this name as a key to retrieve this control's value.\n     * @type {?}\n     */\n    NgModel.prototype.name;\n    /**\n     * \\@description\n     * Tracks whether the control is disabled.\n     * @type {?}\n     */\n    NgModel.prototype.isDisabled;\n    /**\n     * \\@description\n     * Tracks the value bound to this directive.\n     * @type {?}\n     */\n    NgModel.prototype.model;\n    /**\n     * \\@description\n     * Tracks the configuration options for this `ngModel` instance.\n     *\n     * **name**: An alternative to setting the name attribute on the form control element. See\n     * the [example](api/forms/NgModel#using-ngmodel-on-a-standalone-control) for using `NgModel`\n     * as a standalone control.\n     *\n     * **standalone**: When set to true, the `ngModel` will not register itself with its parent form,\n     * and acts as if it's not in the form. Defaults to false.\n     *\n     * **updateOn**: Defines the event upon which the form control value and validity update.\n     * Defaults to 'change'. Possible values: `'change'` | `'blur'` | `'submit'`.\n     *\n     * @type {?}\n     */\n    NgModel.prototype.options;\n    /**\n     * \\@description\n     * Event emitter for producing the `ngModelChange` event after\n     * the view model updates.\n     * @type {?}\n     */\n    NgModel.prototype.update;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/ng_no_validate_directive.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@description\n *\n * Adds `novalidate` attribute to all forms by default.\n *\n * `novalidate` is used to disable browser's native form validation.\n *\n * If you want to use native validation with Angular forms, just add `ngNativeValidate` attribute:\n *\n * ```\n * <form ngNativeValidate></form>\n * ```\n *\n * \\@publicApi\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n */\nclass ɵNgNoValidate {\n}\nɵNgNoValidate.ɵfac = function ɵNgNoValidate_Factory(t) { return new (t || ɵNgNoValidate)(); };\nɵNgNoValidate.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: ɵNgNoValidate, selectors: [[\"form\", 3, \"ngNoForm\", \"\", 3, \"ngNativeValidate\", \"\"]], hostAttrs: [\"novalidate\", \"\"] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ɵNgNoValidate, [{\n        type: Directive,\n        args: [{\n                selector: 'form:not([ngNoForm]):not([ngNativeValidate])',\n                host: { 'novalidate': '' }\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/reactive_directives/form_control_directive.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Token to provide to turn off the ngModel warning on formControl and formControlName.\n * @type {?}\n */\nconst NG_MODEL_WITH_FORM_CONTROL_WARNING = new InjectionToken('NgModelWithFormControlWarning');\n/** @type {?} */\nconst formControlBinding$1 = {\n    provide: NgControl,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => FormControlDirective))\n};\n/**\n * \\@description\n * Synchronizes a standalone `FormControl` instance to a form control element.\n *\n * Note that support for using the `ngModel` input property and `ngModelChange` event with reactive\n * form directives was deprecated in Angular v6 and is scheduled for removal in\n * a future version of Angular.\n * For details, see [Deprecated features](guide/deprecations#ngmodel-with-reactive-forms).\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see `FormControl`\n * @see `AbstractControl`\n *\n * \\@usageNotes\n *\n * The following example shows how to register a standalone control and set its value.\n *\n * {\\@example forms/ts/simpleFormControl/simple_form_control_example.ts region='Component'}\n *\n * \\@ngModule ReactiveFormsModule\n * \\@publicApi\n */\nclass FormControlDirective extends NgControl {\n    /**\n     * @param {?} validators\n     * @param {?} asyncValidators\n     * @param {?} valueAccessors\n     * @param {?} _ngModelWarningConfig\n     */\n    constructor(validators, asyncValidators, valueAccessors, _ngModelWarningConfig) {\n        super();\n        this._ngModelWarningConfig = _ngModelWarningConfig;\n        /**\n         * @deprecated as of v6\n         */\n        this.update = new EventEmitter();\n        /**\n         * \\@description\n         * Instance property used to track whether an ngModel warning has been sent out for this\n         * particular `FormControlDirective` instance. Used to support warning config of \"always\".\n         *\n         * \\@internal\n         */\n        this._ngModelWarningSent = false;\n        this._rawValidators = validators || [];\n        this._rawAsyncValidators = asyncValidators || [];\n        this.valueAccessor = selectValueAccessor(this, valueAccessors);\n    }\n    /**\n     * \\@description\n     * Triggers a warning that this input should not be used with reactive forms.\n     * @param {?} isDisabled\n     * @return {?}\n     */\n    set isDisabled(isDisabled) {\n        ReactiveErrors.disabledAttrWarning();\n    }\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs change. For internal use\n     * only.\n     *\n     * @param {?} changes A object of key/value pairs for the set of changed inputs.\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        if (this._isControlChanged(changes)) {\n            setUpControl(this.form, this);\n            if (this.control.disabled && (/** @type {?} */ (this.valueAccessor)).setDisabledState) {\n                (/** @type {?} */ ((/** @type {?} */ (this.valueAccessor)).setDisabledState))(true);\n            }\n            this.form.updateValueAndValidity({ emitEvent: false });\n        }\n        if (isPropertyUpdated(changes, this.viewModel)) {\n            _ngModelWarning('formControl', FormControlDirective, this, this._ngModelWarningConfig);\n            this.form.setValue(this.model);\n            this.viewModel = this.model;\n        }\n    }\n    /**\n     * \\@description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     * @return {?}\n     */\n    get path() {\n        return [];\n    }\n    /**\n     * \\@description\n     * Synchronous validator function composed of all the synchronous validators\n     * registered with this directive.\n     * @return {?}\n     */\n    get validator() {\n        return composeValidators(this._rawValidators);\n    }\n    /**\n     * \\@description\n     * Async validator function composed of all the async validators registered with this\n     * directive.\n     * @return {?}\n     */\n    get asyncValidator() {\n        return composeAsyncValidators(this._rawAsyncValidators);\n    }\n    /**\n     * \\@description\n     * The `FormControl` bound to this directive.\n     * @return {?}\n     */\n    get control() {\n        return this.form;\n    }\n    /**\n     * \\@description\n     * Sets the new value for the view model and emits an `ngModelChange` event.\n     *\n     * @param {?} newValue The new value for the view model.\n     * @return {?}\n     */\n    viewToModelUpdate(newValue) {\n        this.viewModel = newValue;\n        this.update.emit(newValue);\n    }\n    /**\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _isControlChanged(changes) {\n        return changes.hasOwnProperty('form');\n    }\n}\nFormControlDirective.ɵfac = function FormControlDirective_Factory(t) { return new (t || FormControlDirective)(ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_VALUE_ACCESSOR, 10), ɵngcc0.ɵɵdirectiveInject(NG_MODEL_WITH_FORM_CONTROL_WARNING, 8)); };\nFormControlDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: FormControlDirective, selectors: [[\"\", \"formControl\", \"\"]], inputs: { isDisabled: [\"disabled\", \"isDisabled\"], form: [\"formControl\", \"form\"], model: [\"ngModel\", \"model\"] }, outputs: { update: \"ngModelChange\" }, exportAs: [\"ngForm\"], features: [ɵngcc0.ɵɵProvidersFeature([formControlBinding$1]), ɵngcc0.ɵɵInheritDefinitionFeature, ɵngcc0.ɵɵNgOnChangesFeature] });\n/**\n * \\@description\n * Static property used to track whether any ngModel warnings have been sent across\n * all instances of FormControlDirective. Used to support warning config of \"once\".\n *\n * \\@internal\n */\nFormControlDirective._ngModelWarningSentOnce = false;\n/** @nocollapse */\nFormControlDirective.ctorParameters = () => [\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALUE_ACCESSOR,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [NG_MODEL_WITH_FORM_CONTROL_WARNING,] }] }\n];\nFormControlDirective.propDecorators = {\n    form: [{ type: Input, args: ['formControl',] }],\n    isDisabled: [{ type: Input, args: ['disabled',] }],\n    model: [{ type: Input, args: ['ngModel',] }],\n    update: [{ type: Output, args: ['ngModelChange',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FormControlDirective, [{\n        type: Directive,\n        args: [{ selector: '[formControl]', providers: [formControlBinding$1], exportAs: 'ngForm' }]\n    }], function () { return [{ type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALUE_ACCESSOR]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [NG_MODEL_WITH_FORM_CONTROL_WARNING]\n            }] }]; }, { update: [{\n            type: Output,\n            args: ['ngModelChange']\n        }], isDisabled: [{\n            type: Input,\n            args: ['disabled']\n        }], form: [{\n            type: Input,\n            args: ['formControl']\n        }], model: [{\n            type: Input,\n            args: ['ngModel']\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * Static property used to track whether any ngModel warnings have been sent across\n     * all instances of FormControlDirective. Used to support warning config of \"once\".\n     *\n     * \\@internal\n     * @type {?}\n     */\n    FormControlDirective._ngModelWarningSentOnce;\n    /**\n     * \\@description\n     * Internal reference to the view model value.\n     * @type {?}\n     */\n    FormControlDirective.prototype.viewModel;\n    /**\n     * \\@description\n     * Tracks the `FormControl` instance bound to the directive.\n     * @type {?}\n     */\n    FormControlDirective.prototype.form;\n    /**\n     * @deprecated as of v6\n     * @type {?}\n     */\n    FormControlDirective.prototype.model;\n    /**\n     * @deprecated as of v6\n     * @type {?}\n     */\n    FormControlDirective.prototype.update;\n    /**\n     * \\@description\n     * Instance property used to track whether an ngModel warning has been sent out for this\n     * particular `FormControlDirective` instance. Used to support warning config of \"always\".\n     *\n     * \\@internal\n     * @type {?}\n     */\n    FormControlDirective.prototype._ngModelWarningSent;\n    /**\n     * @type {?}\n     * @private\n     */\n    FormControlDirective.prototype._ngModelWarningConfig;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/reactive_directives/form_group_directive.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst formDirectiveProvider$1 = {\n    provide: ControlContainer,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => FormGroupDirective))\n};\n/**\n * \\@description\n *\n * Binds an existing `FormGroup` to a DOM element.\n *\n * This directive accepts an existing `FormGroup` instance. It will then use this\n * `FormGroup` instance to match any child `FormControl`, `FormGroup`,\n * and `FormArray` instances to child `FormControlName`, `FormGroupName`,\n * and `FormArrayName` directives.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see `AbstractControl`\n *\n * ### Register Form Group\n *\n * The following example registers a `FormGroup` with first name and last name controls,\n * and listens for the *ngSubmit* event when the button is clicked.\n *\n * {\\@example forms/ts/simpleFormGroup/simple_form_group_example.ts region='Component'}\n *\n * \\@ngModule ReactiveFormsModule\n * \\@publicApi\n */\nclass FormGroupDirective extends ControlContainer {\n    /**\n     * @param {?} _validators\n     * @param {?} _asyncValidators\n     */\n    constructor(_validators, _asyncValidators) {\n        super();\n        this._validators = _validators;\n        this._asyncValidators = _asyncValidators;\n        /**\n         * \\@description\n         * Reports whether the form submission has been triggered.\n         */\n        this.submitted = false;\n        /**\n         * \\@description\n         * Tracks the list of added `FormControlName` instances\n         */\n        this.directives = [];\n        /**\n         * \\@description\n         * Tracks the `FormGroup` bound to this directive.\n         */\n        this.form = (/** @type {?} */ (null));\n        /**\n         * \\@description\n         * Emits an event when the form submission has been triggered.\n         */\n        this.ngSubmit = new EventEmitter();\n    }\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs change. For internal use only.\n     *\n     * @param {?} changes A object of key/value pairs for the set of changed inputs.\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        this._checkFormPresent();\n        if (changes.hasOwnProperty('form')) {\n            this._updateValidators();\n            this._updateDomValue();\n            this._updateRegistrations();\n        }\n    }\n    /**\n     * \\@description\n     * Returns this directive's instance.\n     * @return {?}\n     */\n    get formDirective() {\n        return this;\n    }\n    /**\n     * \\@description\n     * Returns the `FormGroup` bound to this directive.\n     * @return {?}\n     */\n    get control() {\n        return this.form;\n    }\n    /**\n     * \\@description\n     * Returns an array representing the path to this group. Because this directive\n     * always lives at the top level of a form, it always an empty array.\n     * @return {?}\n     */\n    get path() {\n        return [];\n    }\n    /**\n     * \\@description\n     * Method that sets up the control directive in this group, re-calculates its value\n     * and validity, and adds the instance to the internal list of directives.\n     *\n     * @param {?} dir The `FormControlName` directive instance.\n     * @return {?}\n     */\n    addControl(dir) {\n        /** @type {?} */\n        const ctrl = this.form.get(dir.path);\n        setUpControl(ctrl, dir);\n        ctrl.updateValueAndValidity({ emitEvent: false });\n        this.directives.push(dir);\n        return ctrl;\n    }\n    /**\n     * \\@description\n     * Retrieves the `FormControl` instance from the provided `FormControlName` directive\n     *\n     * @param {?} dir The `FormControlName` directive instance.\n     * @return {?}\n     */\n    getControl(dir) {\n        return (/** @type {?} */ (this.form.get(dir.path)));\n    }\n    /**\n     * \\@description\n     * Removes the `FormControlName` instance from the internal list of directives\n     *\n     * @param {?} dir The `FormControlName` directive instance.\n     * @return {?}\n     */\n    removeControl(dir) {\n        removeDir(this.directives, dir);\n    }\n    /**\n     * Adds a new `FormGroupName` directive instance to the form.\n     *\n     * @param {?} dir The `FormGroupName` directive instance.\n     * @return {?}\n     */\n    addFormGroup(dir) {\n        /** @type {?} */\n        const ctrl = this.form.get(dir.path);\n        setUpFormContainer(ctrl, dir);\n        ctrl.updateValueAndValidity({ emitEvent: false });\n    }\n    /**\n     * No-op method to remove the form group.\n     *\n     * @param {?} dir The `FormGroupName` directive instance.\n     * @return {?}\n     */\n    removeFormGroup(dir) { }\n    /**\n     * \\@description\n     * Retrieves the `FormGroup` for a provided `FormGroupName` directive instance\n     *\n     * @param {?} dir The `FormGroupName` directive instance.\n     * @return {?}\n     */\n    getFormGroup(dir) {\n        return (/** @type {?} */ (this.form.get(dir.path)));\n    }\n    /**\n     * Adds a new `FormArrayName` directive instance to the form.\n     *\n     * @param {?} dir The `FormArrayName` directive instance.\n     * @return {?}\n     */\n    addFormArray(dir) {\n        /** @type {?} */\n        const ctrl = this.form.get(dir.path);\n        setUpFormContainer(ctrl, dir);\n        ctrl.updateValueAndValidity({ emitEvent: false });\n    }\n    /**\n     * No-op method to remove the form array.\n     *\n     * @param {?} dir The `FormArrayName` directive instance.\n     * @return {?}\n     */\n    removeFormArray(dir) { }\n    /**\n     * \\@description\n     * Retrieves the `FormArray` for a provided `FormArrayName` directive instance.\n     *\n     * @param {?} dir The `FormArrayName` directive instance.\n     * @return {?}\n     */\n    getFormArray(dir) {\n        return (/** @type {?} */ (this.form.get(dir.path)));\n    }\n    /**\n     * Sets the new value for the provided `FormControlName` directive.\n     *\n     * @param {?} dir The `FormControlName` directive instance.\n     * @param {?} value The new value for the directive's control.\n     * @return {?}\n     */\n    updateModel(dir, value) {\n        /** @type {?} */\n        const ctrl = (/** @type {?} */ (this.form.get(dir.path)));\n        ctrl.setValue(value);\n    }\n    /**\n     * \\@description\n     * Method called with the \"submit\" event is triggered on the form.\n     * Triggers the `ngSubmit` emitter to emit the \"submit\" event as its payload.\n     *\n     * @param {?} $event The \"submit\" event object\n     * @return {?}\n     */\n    onSubmit($event) {\n        ((/** @type {?} */ (this))).submitted = true;\n        syncPendingControls(this.form, this.directives);\n        this.ngSubmit.emit($event);\n        return false;\n    }\n    /**\n     * \\@description\n     * Method called when the \"reset\" event is triggered on the form.\n     * @return {?}\n     */\n    onReset() {\n        this.resetForm();\n    }\n    /**\n     * \\@description\n     * Resets the form to an initial value and resets its submitted status.\n     *\n     * @param {?=} value The new value for the form.\n     * @return {?}\n     */\n    resetForm(value = undefined) {\n        this.form.reset(value);\n        ((/** @type {?} */ (this))).submitted = false;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _updateDomValue() {\n        this.directives.forEach((/**\n         * @param {?} dir\n         * @return {?}\n         */\n        dir => {\n            /** @type {?} */\n            const newCtrl = this.form.get(dir.path);\n            if (dir.control !== newCtrl) {\n                cleanUpControl(dir.control, dir);\n                if (newCtrl)\n                    setUpControl(newCtrl, dir);\n                ((/** @type {?} */ (dir))).control = newCtrl;\n            }\n        }));\n        this.form._updateTreeValidity({ emitEvent: false });\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _updateRegistrations() {\n        this.form._registerOnCollectionChange((/**\n         * @return {?}\n         */\n        () => this._updateDomValue()));\n        if (this._oldForm)\n            this._oldForm._registerOnCollectionChange((/**\n             * @return {?}\n             */\n            () => { }));\n        this._oldForm = this.form;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _updateValidators() {\n        /** @type {?} */\n        const sync = composeValidators(this._validators);\n        this.form.validator = Validators.compose([(/** @type {?} */ (this.form.validator)), (/** @type {?} */ (sync))]);\n        /** @type {?} */\n        const async = composeAsyncValidators(this._asyncValidators);\n        this.form.asyncValidator = Validators.composeAsync([(/** @type {?} */ (this.form.asyncValidator)), (/** @type {?} */ (async))]);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkFormPresent() {\n        if (!this.form) {\n            ReactiveErrors.missingFormException();\n        }\n    }\n}\nFormGroupDirective.ɵfac = function FormGroupDirective_Factory(t) { return new (t || FormGroupDirective)(ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10)); };\nFormGroupDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: FormGroupDirective, selectors: [[\"\", \"formGroup\", \"\"]], hostBindings: function FormGroupDirective_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"submit\", function FormGroupDirective_submit_HostBindingHandler($event) { return ctx.onSubmit($event); })(\"reset\", function FormGroupDirective_reset_HostBindingHandler() { return ctx.onReset(); });\n    } }, inputs: { form: [\"formGroup\", \"form\"] }, outputs: { ngSubmit: \"ngSubmit\" }, exportAs: [\"ngForm\"], features: [ɵngcc0.ɵɵProvidersFeature([formDirectiveProvider$1]), ɵngcc0.ɵɵInheritDefinitionFeature, ɵngcc0.ɵɵNgOnChangesFeature] });\n/** @nocollapse */\nFormGroupDirective.ctorParameters = () => [\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] }\n];\nFormGroupDirective.propDecorators = {\n    form: [{ type: Input, args: ['formGroup',] }],\n    ngSubmit: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FormGroupDirective, [{\n        type: Directive,\n        args: [{\n                selector: '[formGroup]',\n                providers: [formDirectiveProvider$1],\n                host: { '(submit)': 'onSubmit($event)', '(reset)': 'onReset()' },\n                exportAs: 'ngForm'\n            }]\n    }], function () { return [{ type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }]; }, { form: [{\n            type: Input,\n            args: ['formGroup']\n        }], ngSubmit: [{\n            type: Output\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * Reports whether the form submission has been triggered.\n     * @type {?}\n     */\n    FormGroupDirective.prototype.submitted;\n    /**\n     * @type {?}\n     * @private\n     */\n    FormGroupDirective.prototype._oldForm;\n    /**\n     * \\@description\n     * Tracks the list of added `FormControlName` instances\n     * @type {?}\n     */\n    FormGroupDirective.prototype.directives;\n    /**\n     * \\@description\n     * Tracks the `FormGroup` bound to this directive.\n     * @type {?}\n     */\n    FormGroupDirective.prototype.form;\n    /**\n     * \\@description\n     * Emits an event when the form submission has been triggered.\n     * @type {?}\n     */\n    FormGroupDirective.prototype.ngSubmit;\n    /**\n     * @type {?}\n     * @private\n     */\n    FormGroupDirective.prototype._validators;\n    /**\n     * @type {?}\n     * @private\n     */\n    FormGroupDirective.prototype._asyncValidators;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/reactive_directives/form_group_name.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst formGroupNameProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => FormGroupName))\n};\n/**\n * \\@description\n *\n * Syncs a nested `FormGroup` to a DOM element.\n *\n * This directive can only be used with a parent `FormGroupDirective`.\n *\n * It accepts the string name of the nested `FormGroup` to link, and\n * looks for a `FormGroup` registered with that name in the parent\n * `FormGroup` instance you passed into `FormGroupDirective`.\n *\n * Use nested form groups to validate a sub-group of a\n * form separately from the rest or to group the values of certain\n * controls into their own nested object.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n *\n * \\@usageNotes\n *\n * ### Access the group by name\n *\n * The following example uses the {\\@link AbstractControl#get get} method to access the\n * associated `FormGroup`\n *\n * ```ts\n *   this.form.get('name');\n * ```\n *\n * ### Access individual controls in the group\n *\n * The following example uses the {\\@link AbstractControl#get get} method to access\n * individual controls within the group using dot syntax.\n *\n * ```ts\n *   this.form.get('name.first');\n * ```\n *\n * ### Register a nested `FormGroup`.\n *\n * The following example registers a nested *name* `FormGroup` within an existing `FormGroup`,\n * and provides methods to retrieve the nested `FormGroup` and individual controls.\n *\n * {\\@example forms/ts/nestedFormGroup/nested_form_group_example.ts region='Component'}\n *\n * \\@ngModule ReactiveFormsModule\n * \\@publicApi\n */\nclass FormGroupName extends AbstractFormGroupDirective {\n    /**\n     * @param {?} parent\n     * @param {?} validators\n     * @param {?} asyncValidators\n     */\n    constructor(parent, validators, asyncValidators) {\n        super();\n        this._parent = parent;\n        this._validators = validators;\n        this._asyncValidators = asyncValidators;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    _checkParentType() {\n        if (_hasInvalidParent(this._parent)) {\n            ReactiveErrors.groupParentException();\n        }\n    }\n}\nFormGroupName.ɵfac = function FormGroupName_Factory(t) { return new (t || FormGroupName)(ɵngcc0.ɵɵdirectiveInject(ControlContainer, 13), ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10)); };\nFormGroupName.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: FormGroupName, selectors: [[\"\", \"formGroupName\", \"\"]], inputs: { name: [\"formGroupName\", \"name\"] }, features: [ɵngcc0.ɵɵProvidersFeature([formGroupNameProvider]), ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nFormGroupName.ctorParameters = () => [\n    { type: ControlContainer, decorators: [{ type: Optional }, { type: Host }, { type: SkipSelf }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] }\n];\nFormGroupName.propDecorators = {\n    name: [{ type: Input, args: ['formGroupName',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FormGroupName, [{\n        type: Directive,\n        args: [{ selector: '[formGroupName]', providers: [formGroupNameProvider] }]\n    }], function () { return [{ type: ControlContainer, decorators: [{\n                type: Optional\n            }, {\n                type: Host\n            }, {\n                type: SkipSelf\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }]; }, { name: [{\n            type: Input,\n            args: ['formGroupName']\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * Tracks the name of the `FormGroup` bound to the directive. The name corresponds\n     * to a key in the parent `FormGroup` or `FormArray`.\n     * Accepts a name as a string or a number.\n     * The name in the form of a string is useful for individual forms,\n     * while the numerical form allows for form groups to be bound\n     * to indices when iterating over groups in a `FormArray`.\n     * @type {?}\n     */\n    FormGroupName.prototype.name;\n}\n/** @type {?} */\nconst formArrayNameProvider = {\n    provide: ControlContainer,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => FormArrayName))\n};\n/**\n * \\@description\n *\n * Syncs a nested `FormArray` to a DOM element.\n *\n * This directive is designed to be used with a parent `FormGroupDirective` (selector:\n * `[formGroup]`).\n *\n * It accepts the string name of the nested `FormArray` you want to link, and\n * will look for a `FormArray` registered with that name in the parent\n * `FormGroup` instance you passed into `FormGroupDirective`.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see `AbstractControl`\n *\n * \\@usageNotes\n *\n * ### Example\n *\n * {\\@example forms/ts/nestedFormArray/nested_form_array_example.ts region='Component'}\n *\n * \\@ngModule ReactiveFormsModule\n * \\@publicApi\n */\nclass FormArrayName extends ControlContainer {\n    /**\n     * @param {?} parent\n     * @param {?} validators\n     * @param {?} asyncValidators\n     */\n    constructor(parent, validators, asyncValidators) {\n        super();\n        this._parent = parent;\n        this._validators = validators;\n        this._asyncValidators = asyncValidators;\n    }\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs are initialized. For internal use only.\n     *\n     * @throws If the directive does not have a valid parent.\n     * @return {?}\n     */\n    ngOnInit() {\n        this._checkParentType();\n        (/** @type {?} */ (this.formDirective)).addFormArray(this);\n    }\n    /**\n     * \\@description\n     * A lifecycle method called before the directive's instance is destroyed. For internal use only.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this.formDirective) {\n            this.formDirective.removeFormArray(this);\n        }\n    }\n    /**\n     * \\@description\n     * The `FormArray` bound to this directive.\n     * @return {?}\n     */\n    get control() {\n        return (/** @type {?} */ (this.formDirective)).getFormArray(this);\n    }\n    /**\n     * \\@description\n     * The top-level directive for this group if present, otherwise null.\n     * @return {?}\n     */\n    get formDirective() {\n        return this._parent ? (/** @type {?} */ (this._parent.formDirective)) : null;\n    }\n    /**\n     * \\@description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     * @return {?}\n     */\n    get path() {\n        return controlPath(this.name == null ? this.name : this.name.toString(), this._parent);\n    }\n    /**\n     * \\@description\n     * Synchronous validator function composed of all the synchronous validators registered with this\n     * directive.\n     * @return {?}\n     */\n    get validator() {\n        return composeValidators(this._validators);\n    }\n    /**\n     * \\@description\n     * Async validator function composed of all the async validators registered with this directive.\n     * @return {?}\n     */\n    get asyncValidator() {\n        return composeAsyncValidators(this._asyncValidators);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkParentType() {\n        if (_hasInvalidParent(this._parent)) {\n            ReactiveErrors.arrayParentException();\n        }\n    }\n}\nFormArrayName.ɵfac = function FormArrayName_Factory(t) { return new (t || FormArrayName)(ɵngcc0.ɵɵdirectiveInject(ControlContainer, 13), ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10)); };\nFormArrayName.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: FormArrayName, selectors: [[\"\", \"formArrayName\", \"\"]], inputs: { name: [\"formArrayName\", \"name\"] }, features: [ɵngcc0.ɵɵProvidersFeature([formArrayNameProvider]), ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nFormArrayName.ctorParameters = () => [\n    { type: ControlContainer, decorators: [{ type: Optional }, { type: Host }, { type: SkipSelf }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] }\n];\nFormArrayName.propDecorators = {\n    name: [{ type: Input, args: ['formArrayName',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FormArrayName, [{\n        type: Directive,\n        args: [{ selector: '[formArrayName]', providers: [formArrayNameProvider] }]\n    }], function () { return [{ type: ControlContainer, decorators: [{\n                type: Optional\n            }, {\n                type: Host\n            }, {\n                type: SkipSelf\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }]; }, { name: [{\n            type: Input,\n            args: ['formArrayName']\n        }] }); })();\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    FormArrayName.prototype._parent;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    FormArrayName.prototype._validators;\n    /**\n     * \\@internal\n     * @type {?}\n     */\n    FormArrayName.prototype._asyncValidators;\n    /**\n     * \\@description\n     * Tracks the name of the `FormArray` bound to the directive. The name corresponds\n     * to a key in the parent `FormGroup` or `FormArray`.\n     * Accepts a name as a string or a number.\n     * The name in the form of a string is useful for individual forms,\n     * while the numerical form allows for form arrays to be bound\n     * to indices when iterating over arrays in a `FormArray`.\n     * @type {?}\n     */\n    FormArrayName.prototype.name;\n}\n/**\n * @param {?} parent\n * @return {?}\n */\nfunction _hasInvalidParent(parent) {\n    return !(parent instanceof FormGroupName) && !(parent instanceof FormGroupDirective) &&\n        !(parent instanceof FormArrayName);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/reactive_directives/form_control_name.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst controlNameBinding = {\n    provide: NgControl,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => FormControlName))\n};\n/**\n * \\@description\n * Syncs a `FormControl` in an existing `FormGroup` to a form control\n * element by name.\n *\n * @see [Reactive Forms Guide](guide/reactive-forms)\n * @see `FormControl`\n * @see `AbstractControl`\n *\n * \\@usageNotes\n *\n * ### Register `FormControl` within a group\n *\n * The following example shows how to register multiple form controls within a form group\n * and set their value.\n *\n * {\\@example forms/ts/simpleFormGroup/simple_form_group_example.ts region='Component'}\n *\n * To see `formControlName` examples with different form control types, see:\n *\n * * Radio buttons: `RadioControlValueAccessor`\n * * Selects: `SelectControlValueAccessor`\n *\n * ### Use with ngModel is deprecated\n *\n * Support for using the `ngModel` input property and `ngModelChange` event with reactive\n * form directives has been deprecated in Angular v6 and is scheduled for removal in\n * a future version of Angular.\n *\n * For details, see [Deprecated features](guide/deprecations#ngmodel-with-reactive-forms).\n *\n * \\@ngModule ReactiveFormsModule\n * \\@publicApi\n */\nclass FormControlName extends NgControl {\n    /**\n     * @param {?} parent\n     * @param {?} validators\n     * @param {?} asyncValidators\n     * @param {?} valueAccessors\n     * @param {?} _ngModelWarningConfig\n     */\n    constructor(parent, validators, asyncValidators, valueAccessors, _ngModelWarningConfig) {\n        super();\n        this._ngModelWarningConfig = _ngModelWarningConfig;\n        this._added = false;\n        /**\n         * @deprecated as of v6\n         */\n        this.update = new EventEmitter();\n        /**\n         * \\@description\n         * Instance property used to track whether an ngModel warning has been sent out for this\n         * particular FormControlName instance. Used to support warning config of \"always\".\n         *\n         * \\@internal\n         */\n        this._ngModelWarningSent = false;\n        this._parent = parent;\n        this._rawValidators = validators || [];\n        this._rawAsyncValidators = asyncValidators || [];\n        this.valueAccessor = selectValueAccessor(this, valueAccessors);\n    }\n    /**\n     * \\@description\n     * Triggers a warning that this input should not be used with reactive forms.\n     * @param {?} isDisabled\n     * @return {?}\n     */\n    set isDisabled(isDisabled) {\n        ReactiveErrors.disabledAttrWarning();\n    }\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs change. For internal use only.\n     *\n     * @param {?} changes A object of key/value pairs for the set of changed inputs.\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        if (!this._added)\n            this._setUpControl();\n        if (isPropertyUpdated(changes, this.viewModel)) {\n            _ngModelWarning('formControlName', FormControlName, this, this._ngModelWarningConfig);\n            this.viewModel = this.model;\n            this.formDirective.updateModel(this, this.model);\n        }\n    }\n    /**\n     * \\@description\n     * Lifecycle method called before the directive's instance is destroyed. For internal use only.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this.formDirective) {\n            this.formDirective.removeControl(this);\n        }\n    }\n    /**\n     * \\@description\n     * Sets the new value for the view model and emits an `ngModelChange` event.\n     *\n     * @param {?} newValue The new value for the view model.\n     * @return {?}\n     */\n    viewToModelUpdate(newValue) {\n        this.viewModel = newValue;\n        this.update.emit(newValue);\n    }\n    /**\n     * \\@description\n     * Returns an array that represents the path from the top-level form to this control.\n     * Each index is the string name of the control on that level.\n     * @return {?}\n     */\n    get path() {\n        return controlPath(this.name == null ? this.name : this.name.toString(), (/** @type {?} */ (this._parent)));\n    }\n    /**\n     * \\@description\n     * The top-level directive for this group if present, otherwise null.\n     * @return {?}\n     */\n    get formDirective() {\n        return this._parent ? this._parent.formDirective : null;\n    }\n    /**\n     * \\@description\n     * Synchronous validator function composed of all the synchronous validators\n     * registered with this directive.\n     * @return {?}\n     */\n    get validator() {\n        return composeValidators(this._rawValidators);\n    }\n    /**\n     * \\@description\n     * Async validator function composed of all the async validators registered with this\n     * directive.\n     * @return {?}\n     */\n    get asyncValidator() {\n        return (/** @type {?} */ (composeAsyncValidators(this._rawAsyncValidators)));\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkParentType() {\n        if (!(this._parent instanceof FormGroupName) &&\n            this._parent instanceof AbstractFormGroupDirective) {\n            ReactiveErrors.ngModelGroupException();\n        }\n        else if (!(this._parent instanceof FormGroupName) && !(this._parent instanceof FormGroupDirective) &&\n            !(this._parent instanceof FormArrayName)) {\n            ReactiveErrors.controlParentException();\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _setUpControl() {\n        this._checkParentType();\n        ((/** @type {?} */ (this))).control = this.formDirective.addControl(this);\n        if (this.control.disabled && (/** @type {?} */ (this.valueAccessor)).setDisabledState) {\n            (/** @type {?} */ ((/** @type {?} */ (this.valueAccessor)).setDisabledState))(true);\n        }\n        this._added = true;\n    }\n}\nFormControlName.ɵfac = function FormControlName_Factory(t) { return new (t || FormControlName)(ɵngcc0.ɵɵdirectiveInject(ControlContainer, 13), ɵngcc0.ɵɵdirectiveInject(NG_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_ASYNC_VALIDATORS, 10), ɵngcc0.ɵɵdirectiveInject(NG_VALUE_ACCESSOR, 10), ɵngcc0.ɵɵdirectiveInject(NG_MODEL_WITH_FORM_CONTROL_WARNING, 8)); };\nFormControlName.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: FormControlName, selectors: [[\"\", \"formControlName\", \"\"]], inputs: { isDisabled: [\"disabled\", \"isDisabled\"], name: [\"formControlName\", \"name\"], model: [\"ngModel\", \"model\"] }, outputs: { update: \"ngModelChange\" }, features: [ɵngcc0.ɵɵProvidersFeature([controlNameBinding]), ɵngcc0.ɵɵInheritDefinitionFeature, ɵngcc0.ɵɵNgOnChangesFeature] });\n/**\n * \\@description\n * Static property used to track whether any ngModel warnings have been sent across\n * all instances of FormControlName. Used to support warning config of \"once\".\n *\n * \\@internal\n */\nFormControlName._ngModelWarningSentOnce = false;\n/** @nocollapse */\nFormControlName.ctorParameters = () => [\n    { type: ControlContainer, decorators: [{ type: Optional }, { type: Host }, { type: SkipSelf }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_ASYNC_VALIDATORS,] }] },\n    { type: Array, decorators: [{ type: Optional }, { type: Self }, { type: Inject, args: [NG_VALUE_ACCESSOR,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [NG_MODEL_WITH_FORM_CONTROL_WARNING,] }] }\n];\nFormControlName.propDecorators = {\n    name: [{ type: Input, args: ['formControlName',] }],\n    isDisabled: [{ type: Input, args: ['disabled',] }],\n    model: [{ type: Input, args: ['ngModel',] }],\n    update: [{ type: Output, args: ['ngModelChange',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FormControlName, [{\n        type: Directive,\n        args: [{ selector: '[formControlName]', providers: [controlNameBinding] }]\n    }], function () { return [{ type: ControlContainer, decorators: [{\n                type: Optional\n            }, {\n                type: Host\n            }, {\n                type: SkipSelf\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_ASYNC_VALIDATORS]\n            }] }, { type: Array, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }, {\n                type: Inject,\n                args: [NG_VALUE_ACCESSOR]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [NG_MODEL_WITH_FORM_CONTROL_WARNING]\n            }] }]; }, { update: [{\n            type: Output,\n            args: ['ngModelChange']\n        }], isDisabled: [{\n            type: Input,\n            args: ['disabled']\n        }], name: [{\n            type: Input,\n            args: ['formControlName']\n        }], model: [{\n            type: Input,\n            args: ['ngModel']\n        }] }); })();\nif (false) {\n    /**\n     * \\@description\n     * Static property used to track whether any ngModel warnings have been sent across\n     * all instances of FormControlName. Used to support warning config of \"once\".\n     *\n     * \\@internal\n     * @type {?}\n     */\n    FormControlName._ngModelWarningSentOnce;\n    /**\n     * @type {?}\n     * @private\n     */\n    FormControlName.prototype._added;\n    /**\n     * \\@description\n     * Internal reference to the view model value.\n     * \\@internal\n     * @type {?}\n     */\n    FormControlName.prototype.viewModel;\n    /**\n     * \\@description\n     * Tracks the `FormControl` instance bound to the directive.\n     * @type {?}\n     */\n    FormControlName.prototype.control;\n    /**\n     * \\@description\n     * Tracks the name of the `FormControl` bound to the directive. The name corresponds\n     * to a key in the parent `FormGroup` or `FormArray`.\n     * Accepts a name as a string or a number.\n     * The name in the form of a string is useful for individual forms,\n     * while the numerical form allows for form controls to be bound\n     * to indices when iterating over controls in a `FormArray`.\n     * @type {?}\n     */\n    FormControlName.prototype.name;\n    /**\n     * @deprecated as of v6\n     * @type {?}\n     */\n    FormControlName.prototype.model;\n    /**\n     * @deprecated as of v6\n     * @type {?}\n     */\n    FormControlName.prototype.update;\n    /**\n     * \\@description\n     * Instance property used to track whether an ngModel warning has been sent out for this\n     * particular FormControlName instance. Used to support warning config of \"always\".\n     *\n     * \\@internal\n     * @type {?}\n     */\n    FormControlName.prototype._ngModelWarningSent;\n    /**\n     * @type {?}\n     * @private\n     */\n    FormControlName.prototype._ngModelWarningConfig;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives/validators.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@description\n * An interface implemented by classes that perform synchronous validation.\n *\n * \\@usageNotes\n *\n * ### Provide a custom validator\n *\n * The following example implements the `Validator` interface to create a\n * validator directive with a custom error key.\n *\n * ```typescript\n * \\@Directive({\n *   selector: '[customValidator]',\n *   providers: [{provide: NG_VALIDATORS, useExisting: CustomValidatorDirective, multi: true}]\n * })\n * class CustomValidatorDirective implements Validator {\n *   validate(control: AbstractControl): ValidationErrors|null {\n *     return {'custom': true};\n *   }\n * }\n * ```\n *\n * \\@publicApi\n * @record\n */\nfunction Validator() { }\nif (false) {\n    /**\n     * \\@description\n     * Method that performs synchronous validation against the provided control.\n     *\n     * @param {?} control The control to validate against.\n     *\n     * @return {?} A map of validation errors if validation fails,\n     * otherwise null.\n     */\n    Validator.prototype.validate = function (control) { };\n    /**\n     * \\@description\n     * Registers a callback function to call when the validator inputs change.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    Validator.prototype.registerOnValidatorChange = function (fn) { };\n}\n/**\n * \\@description\n * An interface implemented by classes that perform asynchronous validation.\n *\n * \\@usageNotes\n *\n * ### Provide a custom async validator directive\n *\n * The following example implements the `AsyncValidator` interface to create an\n * async validator directive with a custom error key.\n *\n * ```typescript\n * import { of } from 'rxjs';\n *\n * \\@Directive({\n *   selector: '[customAsyncValidator]',\n *   providers: [{provide: NG_ASYNC_VALIDATORS, useExisting: CustomAsyncValidatorDirective, multi:\n * true}]\n * })\n * class CustomAsyncValidatorDirective implements AsyncValidator {\n *   validate(control: AbstractControl): Observable<ValidationErrors|null> {\n *     return of({'custom': true});\n *   }\n * }\n * ```\n *\n * \\@publicApi\n * @record\n */\nfunction AsyncValidator() { }\nif (false) {\n    /**\n     * \\@description\n     * Method that performs async validation against the provided control.\n     *\n     * @param {?} control The control to validate against.\n     *\n     * @return {?} A promise or observable that resolves a map of validation errors\n     * if validation fails, otherwise null.\n     */\n    AsyncValidator.prototype.validate = function (control) { };\n}\n/**\n * \\@description\n * Provider which adds `RequiredValidator` to the `NG_VALIDATORS` multi-provider list.\n * @type {?}\n */\nconst REQUIRED_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => RequiredValidator)),\n    multi: true\n};\n/**\n * \\@description\n * Provider which adds `CheckboxRequiredValidator` to the `NG_VALIDATORS` multi-provider list.\n * @type {?}\n */\nconst CHECKBOX_REQUIRED_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => CheckboxRequiredValidator)),\n    multi: true\n};\n/**\n * \\@description\n * A directive that adds the `required` validator to any controls marked with the\n * `required` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * \\@usageNotes\n *\n * ### Adding a required validator using template-driven forms\n *\n * ```\n * <input name=\"fullName\" ngModel required>\n * ```\n *\n * \\@ngModule FormsModule\n * \\@ngModule ReactiveFormsModule\n * \\@publicApi\n */\nclass RequiredValidator {\n    /**\n     * \\@description\n     * Tracks changes to the required attribute bound to this directive.\n     * @return {?}\n     */\n    get required() {\n        return this._required;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set required(value) {\n        this._required = value != null && value !== false && `${value}` !== 'false';\n        if (this._onChange)\n            this._onChange();\n    }\n    /**\n     * \\@description\n     * Method that validates whether the control is empty.\n     * Returns the validation result if enabled, otherwise null.\n     * @param {?} control\n     * @return {?}\n     */\n    validate(control) {\n        return this.required ? Validators.required(control) : null;\n    }\n    /**\n     * \\@description\n     * Registers a callback function to call when the validator inputs change.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnValidatorChange(fn) {\n        this._onChange = fn;\n    }\n}\nRequiredValidator.ɵfac = function RequiredValidator_Factory(t) { return new (t || RequiredValidator)(); };\nRequiredValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: RequiredValidator, selectors: [[\"\", \"required\", \"\", \"formControlName\", \"\", 3, \"type\", \"checkbox\"], [\"\", \"required\", \"\", \"formControl\", \"\", 3, \"type\", \"checkbox\"], [\"\", \"required\", \"\", \"ngModel\", \"\", 3, \"type\", \"checkbox\"]], hostVars: 1, hostBindings: function RequiredValidator_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"required\", ctx.required ? \"\" : null);\n    } }, inputs: { required: \"required\" }, features: [ɵngcc0.ɵɵProvidersFeature([REQUIRED_VALIDATOR])] });\nRequiredValidator.propDecorators = {\n    required: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(RequiredValidator, [{\n        type: Directive,\n        args: [{\n                selector: ':not([type=checkbox])[required][formControlName],:not([type=checkbox])[required][formControl],:not([type=checkbox])[required][ngModel]',\n                providers: [REQUIRED_VALIDATOR],\n                host: { '[attr.required]': 'required ? \"\" : null' }\n            }]\n    }], null, { required: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    RequiredValidator.prototype._required;\n    /**\n     * @type {?}\n     * @private\n     */\n    RequiredValidator.prototype._onChange;\n}\n/**\n * A Directive that adds the `required` validator to checkbox controls marked with the\n * `required` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * \\@usageNotes\n *\n * ### Adding a required checkbox validator using template-driven forms\n *\n * The following example shows how to add a checkbox required validator to an input attached to an\n * ngModel binding.\n *\n * ```\n * <input type=\"checkbox\" name=\"active\" ngModel required>\n * ```\n *\n * \\@publicApi\n * \\@ngModule FormsModule\n * \\@ngModule ReactiveFormsModule\n */\nclass CheckboxRequiredValidator extends RequiredValidator {\n    /**\n     * \\@description\n     * Method that validates whether or not the checkbox has been checked.\n     * Returns the validation result if enabled, otherwise null.\n     * @param {?} control\n     * @return {?}\n     */\n    validate(control) {\n        return this.required ? Validators.requiredTrue(control) : null;\n    }\n}\nCheckboxRequiredValidator.ɵfac = function CheckboxRequiredValidator_Factory(t) { return ɵCheckboxRequiredValidator_BaseFactory(t || CheckboxRequiredValidator); };\nCheckboxRequiredValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CheckboxRequiredValidator, selectors: [[\"input\", \"type\", \"checkbox\", \"required\", \"\", \"formControlName\", \"\"], [\"input\", \"type\", \"checkbox\", \"required\", \"\", \"formControl\", \"\"], [\"input\", \"type\", \"checkbox\", \"required\", \"\", \"ngModel\", \"\"]], hostVars: 1, hostBindings: function CheckboxRequiredValidator_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"required\", ctx.required ? \"\" : null);\n    } }, features: [ɵngcc0.ɵɵProvidersFeature([CHECKBOX_REQUIRED_VALIDATOR]), ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵCheckboxRequiredValidator_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(CheckboxRequiredValidator);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CheckboxRequiredValidator, [{\n        type: Directive,\n        args: [{\n                selector: 'input[type=checkbox][required][formControlName],input[type=checkbox][required][formControl],input[type=checkbox][required][ngModel]',\n                providers: [CHECKBOX_REQUIRED_VALIDATOR],\n                host: { '[attr.required]': 'required ? \"\" : null' }\n            }]\n    }], null, null); })();\n/**\n * \\@description\n * Provider which adds `EmailValidator` to the `NG_VALIDATORS` multi-provider list.\n * @type {?}\n */\nconst EMAIL_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => EmailValidator)),\n    multi: true\n};\n/**\n * A directive that adds the `email` validator to controls marked with the\n * `email` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * \\@usageNotes\n *\n * ### Adding an email validator\n *\n * The following example shows how to add an email validator to an input attached to an ngModel\n * binding.\n *\n * ```\n * <input type=\"email\" name=\"email\" ngModel email>\n * <input type=\"email\" name=\"email\" ngModel email=\"true\">\n * <input type=\"email\" name=\"email\" ngModel [email]=\"true\">\n * ```\n *\n * \\@publicApi\n * \\@ngModule FormsModule\n * \\@ngModule ReactiveFormsModule\n */\nclass EmailValidator {\n    /**\n     * \\@description\n     * Tracks changes to the email attribute bound to this directive.\n     * @param {?} value\n     * @return {?}\n     */\n    set email(value) {\n        this._enabled = value === '' || value === true || value === 'true';\n        if (this._onChange)\n            this._onChange();\n    }\n    /**\n     * \\@description\n     * Method that validates whether an email address is valid.\n     * Returns the validation result if enabled, otherwise null.\n     * @param {?} control\n     * @return {?}\n     */\n    validate(control) {\n        return this._enabled ? Validators.email(control) : null;\n    }\n    /**\n     * \\@description\n     * Registers a callback function to call when the validator inputs change.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnValidatorChange(fn) {\n        this._onChange = fn;\n    }\n}\nEmailValidator.ɵfac = function EmailValidator_Factory(t) { return new (t || EmailValidator)(); };\nEmailValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: EmailValidator, selectors: [[\"\", \"email\", \"\", \"formControlName\", \"\"], [\"\", \"email\", \"\", \"formControl\", \"\"], [\"\", \"email\", \"\", \"ngModel\", \"\"]], inputs: { email: \"email\" }, features: [ɵngcc0.ɵɵProvidersFeature([EMAIL_VALIDATOR])] });\nEmailValidator.propDecorators = {\n    email: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(EmailValidator, [{\n        type: Directive,\n        args: [{\n                selector: '[email][formControlName],[email][formControl],[email][ngModel]',\n                providers: [EMAIL_VALIDATOR]\n            }]\n    }], null, { email: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    EmailValidator.prototype._enabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    EmailValidator.prototype._onChange;\n}\n/**\n * \\@description\n * A function that receives a control and synchronously returns a map of\n * validation errors if present, otherwise null.\n *\n * \\@publicApi\n * @record\n */\nfunction ValidatorFn() { }\n/**\n * \\@description\n * A function that receives a control and returns a Promise or observable\n * that emits validation errors if present, otherwise null.\n *\n * \\@publicApi\n * @record\n */\nfunction AsyncValidatorFn() { }\n/**\n * \\@description\n * Provider which adds `MinLengthValidator` to the `NG_VALIDATORS` multi-provider list.\n * @type {?}\n */\nconst MIN_LENGTH_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MinLengthValidator)),\n    multi: true\n};\n/**\n * A directive that adds minimum length validation to controls marked with the\n * `minlength` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * \\@usageNotes\n *\n * ### Adding a minimum length validator\n *\n * The following example shows how to add a minimum length validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input name=\"firstName\" ngModel minlength=\"4\">\n * ```\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass MinLengthValidator {\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs change. For internal use\n     * only.\n     *\n     * @param {?} changes A object of key/value pairs for the set of changed inputs.\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        if ('minlength' in changes) {\n            this._createValidator();\n            if (this._onChange)\n                this._onChange();\n        }\n    }\n    /**\n     * \\@description\n     * Method that validates whether the value meets a minimum length\n     * requirement. Returns the validation result if enabled, otherwise null.\n     * @param {?} control\n     * @return {?}\n     */\n    validate(control) {\n        return this.minlength == null ? null : this._validator(control);\n    }\n    /**\n     * \\@description\n     * Registers a callback function to call when the validator inputs change.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnValidatorChange(fn) {\n        this._onChange = fn;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _createValidator() {\n        this._validator = Validators.minLength(typeof this.minlength === 'number' ? this.minlength : parseInt(this.minlength, 10));\n    }\n}\nMinLengthValidator.ɵfac = function MinLengthValidator_Factory(t) { return new (t || MinLengthValidator)(); };\nMinLengthValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MinLengthValidator, selectors: [[\"\", \"minlength\", \"\", \"formControlName\", \"\"], [\"\", \"minlength\", \"\", \"formControl\", \"\"], [\"\", \"minlength\", \"\", \"ngModel\", \"\"]], hostVars: 1, hostBindings: function MinLengthValidator_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"minlength\", ctx.minlength ? ctx.minlength : null);\n    } }, inputs: { minlength: \"minlength\" }, features: [ɵngcc0.ɵɵProvidersFeature([MIN_LENGTH_VALIDATOR]), ɵngcc0.ɵɵNgOnChangesFeature] });\nMinLengthValidator.propDecorators = {\n    minlength: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MinLengthValidator, [{\n        type: Directive,\n        args: [{\n                selector: '[minlength][formControlName],[minlength][formControl],[minlength][ngModel]',\n                providers: [MIN_LENGTH_VALIDATOR],\n                host: { '[attr.minlength]': 'minlength ? minlength : null' }\n            }]\n    }], null, { minlength: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    MinLengthValidator.prototype._validator;\n    /**\n     * @type {?}\n     * @private\n     */\n    MinLengthValidator.prototype._onChange;\n    /**\n     * \\@description\n     * Tracks changes to the the minimum length bound to this directive.\n     * @type {?}\n     */\n    MinLengthValidator.prototype.minlength;\n}\n/**\n * \\@description\n * Provider which adds `MaxLengthValidator` to the `NG_VALIDATORS` multi-provider list.\n * @type {?}\n */\nconst MAX_LENGTH_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MaxLengthValidator)),\n    multi: true\n};\n/**\n * A directive that adds max length validation to controls marked with the\n * `maxlength` attribute. The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * \\@usageNotes\n *\n * ### Adding a maximum length validator\n *\n * The following example shows how to add a maximum length validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input name=\"firstName\" ngModel maxlength=\"25\">\n * ```\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass MaxLengthValidator {\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs change. For internal use\n     * only.\n     *\n     * @param {?} changes A object of key/value pairs for the set of changed inputs.\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        if ('maxlength' in changes) {\n            this._createValidator();\n            if (this._onChange)\n                this._onChange();\n        }\n    }\n    /**\n     * \\@description\n     * Method that validates whether the value exceeds\n     * the maximum length requirement.\n     * @param {?} control\n     * @return {?}\n     */\n    validate(control) {\n        return this.maxlength != null ? this._validator(control) : null;\n    }\n    /**\n     * \\@description\n     * Registers a callback function to call when the validator inputs change.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnValidatorChange(fn) {\n        this._onChange = fn;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _createValidator() {\n        this._validator = Validators.maxLength(typeof this.maxlength === 'number' ? this.maxlength : parseInt(this.maxlength, 10));\n    }\n}\nMaxLengthValidator.ɵfac = function MaxLengthValidator_Factory(t) { return new (t || MaxLengthValidator)(); };\nMaxLengthValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MaxLengthValidator, selectors: [[\"\", \"maxlength\", \"\", \"formControlName\", \"\"], [\"\", \"maxlength\", \"\", \"formControl\", \"\"], [\"\", \"maxlength\", \"\", \"ngModel\", \"\"]], hostVars: 1, hostBindings: function MaxLengthValidator_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"maxlength\", ctx.maxlength ? ctx.maxlength : null);\n    } }, inputs: { maxlength: \"maxlength\" }, features: [ɵngcc0.ɵɵProvidersFeature([MAX_LENGTH_VALIDATOR]), ɵngcc0.ɵɵNgOnChangesFeature] });\nMaxLengthValidator.propDecorators = {\n    maxlength: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MaxLengthValidator, [{\n        type: Directive,\n        args: [{\n                selector: '[maxlength][formControlName],[maxlength][formControl],[maxlength][ngModel]',\n                providers: [MAX_LENGTH_VALIDATOR],\n                host: { '[attr.maxlength]': 'maxlength ? maxlength : null' }\n            }]\n    }], null, { maxlength: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    MaxLengthValidator.prototype._validator;\n    /**\n     * @type {?}\n     * @private\n     */\n    MaxLengthValidator.prototype._onChange;\n    /**\n     * \\@description\n     * Tracks changes to the the maximum length bound to this directive.\n     * @type {?}\n     */\n    MaxLengthValidator.prototype.maxlength;\n}\n/**\n * \\@description\n * Provider which adds `PatternValidator` to the `NG_VALIDATORS` multi-provider list.\n * @type {?}\n */\nconst PATTERN_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => PatternValidator)),\n    multi: true\n};\n/**\n * \\@description\n * A directive that adds regex pattern validation to controls marked with the\n * `pattern` attribute. The regex must match the entire control value.\n * The directive is provided with the `NG_VALIDATORS` multi-provider list.\n *\n * @see [Form Validation](guide/form-validation)\n *\n * \\@usageNotes\n *\n * ### Adding a pattern validator\n *\n * The following example shows how to add a pattern validator to an input attached to an\n * ngModel binding.\n *\n * ```html\n * <input name=\"firstName\" ngModel pattern=\"[a-zA-Z ]*\">\n * ```\n *\n * \\@ngModule ReactiveFormsModule\n * \\@ngModule FormsModule\n * \\@publicApi\n */\nclass PatternValidator {\n    /**\n     * \\@description\n     * A lifecycle method called when the directive's inputs change. For internal use\n     * only.\n     *\n     * @param {?} changes A object of key/value pairs for the set of changed inputs.\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        if ('pattern' in changes) {\n            this._createValidator();\n            if (this._onChange)\n                this._onChange();\n        }\n    }\n    /**\n     * \\@description\n     * Method that validates whether the value matches the\n     * the pattern requirement.\n     * @param {?} control\n     * @return {?}\n     */\n    validate(control) {\n        return this._validator(control);\n    }\n    /**\n     * \\@description\n     * Registers a callback function to call when the validator inputs change.\n     *\n     * @param {?} fn The callback function\n     * @return {?}\n     */\n    registerOnValidatorChange(fn) {\n        this._onChange = fn;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _createValidator() {\n        this._validator = Validators.pattern(this.pattern);\n    }\n}\nPatternValidator.ɵfac = function PatternValidator_Factory(t) { return new (t || PatternValidator)(); };\nPatternValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: PatternValidator, selectors: [[\"\", \"pattern\", \"\", \"formControlName\", \"\"], [\"\", \"pattern\", \"\", \"formControl\", \"\"], [\"\", \"pattern\", \"\", \"ngModel\", \"\"]], hostVars: 1, hostBindings: function PatternValidator_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"pattern\", ctx.pattern ? ctx.pattern : null);\n    } }, inputs: { pattern: \"pattern\" }, features: [ɵngcc0.ɵɵProvidersFeature([PATTERN_VALIDATOR]), ɵngcc0.ɵɵNgOnChangesFeature] });\nPatternValidator.propDecorators = {\n    pattern: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PatternValidator, [{\n        type: Directive,\n        args: [{\n                selector: '[pattern][formControlName],[pattern][formControl],[pattern][ngModel]',\n                providers: [PATTERN_VALIDATOR],\n                host: { '[attr.pattern]': 'pattern ? pattern : null' }\n            }]\n    }], null, { pattern: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    PatternValidator.prototype._validator;\n    /**\n     * @type {?}\n     * @private\n     */\n    PatternValidator.prototype._onChange;\n    /**\n     * \\@description\n     * Tracks changes to the pattern bound to this directive.\n     * @type {?}\n     */\n    PatternValidator.prototype.pattern;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/directives.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst SHARED_FORM_DIRECTIVES = [\n    ɵNgNoValidate,\n    NgSelectOption,\n    ɵNgSelectMultipleOption,\n    DefaultValueAccessor,\n    NumberValueAccessor,\n    RangeValueAccessor,\n    CheckboxControlValueAccessor,\n    SelectControlValueAccessor,\n    SelectMultipleControlValueAccessor,\n    RadioControlValueAccessor,\n    NgControlStatus,\n    NgControlStatusGroup,\n    RequiredValidator,\n    MinLengthValidator,\n    MaxLengthValidator,\n    PatternValidator,\n    CheckboxRequiredValidator,\n    EmailValidator,\n];\n/** @type {?} */\nconst TEMPLATE_DRIVEN_DIRECTIVES = [NgModel, NgModelGroup, NgForm];\n/** @type {?} */\nconst REACTIVE_DRIVEN_DIRECTIVES = [FormControlDirective, FormGroupDirective, FormControlName, FormGroupName, FormArrayName];\n/**\n * Internal module used for sharing directives between FormsModule and ReactiveFormsModule\n */\nclass ɵInternalFormsSharedModule {\n}\nɵInternalFormsSharedModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: ɵInternalFormsSharedModule });\nɵInternalFormsSharedModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function ɵInternalFormsSharedModule_Factory(t) { return new (t || ɵInternalFormsSharedModule)(); } });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(ɵInternalFormsSharedModule, { declarations: [ɵNgNoValidate, NgSelectOption, ɵNgSelectMultipleOption, DefaultValueAccessor, NumberValueAccessor, RangeValueAccessor, CheckboxControlValueAccessor, SelectControlValueAccessor, SelectMultipleControlValueAccessor, RadioControlValueAccessor, NgControlStatus, NgControlStatusGroup, RequiredValidator, MinLengthValidator, MaxLengthValidator, PatternValidator, CheckboxRequiredValidator, EmailValidator], exports: [ɵNgNoValidate, NgSelectOption, ɵNgSelectMultipleOption, DefaultValueAccessor, NumberValueAccessor, RangeValueAccessor, CheckboxControlValueAccessor, SelectControlValueAccessor, SelectMultipleControlValueAccessor, RadioControlValueAccessor, NgControlStatus, NgControlStatusGroup, RequiredValidator, MinLengthValidator, MaxLengthValidator, PatternValidator, CheckboxRequiredValidator, EmailValidator] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ɵInternalFormsSharedModule, [{\n        type: NgModule,\n        args: [{\n                declarations: SHARED_FORM_DIRECTIVES,\n                exports: SHARED_FORM_DIRECTIVES\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/form_builder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} options\n * @return {?}\n */\nfunction isAbstractControlOptions(options) {\n    return ((/** @type {?} */ (options))).asyncValidators !== undefined ||\n        ((/** @type {?} */ (options))).validators !== undefined ||\n        ((/** @type {?} */ (options))).updateOn !== undefined;\n}\n/**\n * \\@description\n * Creates an `AbstractControl` from a user-specified configuration.\n *\n * The `FormBuilder` provides syntactic sugar that shortens creating instances of a `FormControl`,\n * `FormGroup`, or `FormArray`. It reduces the amount of boilerplate needed to build complex\n * forms.\n *\n * @see [Reactive Forms Guide](/guide/reactive-forms)\n *\n * \\@publicApi\n */\nclass FormBuilder {\n    /**\n     * \\@description\n     * Construct a new `FormGroup` instance.\n     *\n     * @param {?} controlsConfig A collection of child controls. The key for each child is the name\n     * under which it is registered.\n     *\n     * @param {?=} options Configuration options object for the `FormGroup`. The object can\n     * have two shapes:\n     *\n     * 1) `AbstractControlOptions` object (preferred), which consists of:\n     * * `validators`: A synchronous validator function, or an array of validator functions\n     * * `asyncValidators`: A single async validator or array of async validator functions\n     * * `updateOn`: The event upon which the control should be updated (options: 'change' | 'blur' |\n     * submit')\n     *\n     * 2) Legacy configuration object, which consists of:\n     * * `validator`: A synchronous validator function, or an array of validator functions\n     * * `asyncValidator`: A single async validator or array of async validator functions\n     *\n     * @return {?}\n     */\n    group(controlsConfig, options = null) {\n        /** @type {?} */\n        const controls = this._reduceControls(controlsConfig);\n        /** @type {?} */\n        let validators = null;\n        /** @type {?} */\n        let asyncValidators = null;\n        /** @type {?} */\n        let updateOn = undefined;\n        if (options != null) {\n            if (isAbstractControlOptions(options)) {\n                // `options` are `AbstractControlOptions`\n                validators = options.validators != null ? options.validators : null;\n                asyncValidators = options.asyncValidators != null ? options.asyncValidators : null;\n                updateOn = options.updateOn != null ? options.updateOn : undefined;\n            }\n            else {\n                // `options` are legacy form group options\n                validators = options['validator'] != null ? options['validator'] : null;\n                asyncValidators = options['asyncValidator'] != null ? options['asyncValidator'] : null;\n            }\n        }\n        return new FormGroup(controls, { asyncValidators, updateOn, validators });\n    }\n    /**\n     * \\@description\n     * Construct a new `FormControl` with the given state, validators and options.\n     *\n     * \\@usageNotes\n     *\n     * ### Initialize a control as disabled\n     *\n     * The following example returns a control with an initial value in a disabled state.\n     *\n     * <code-example path=\"forms/ts/formBuilder/form_builder_example.ts\" region=\"disabled-control\">\n     * </code-example>\n     * @param {?} formState Initializes the control with an initial state value, or\n     * with an object that contains both a value and a disabled status.\n     *\n     * @param {?=} validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or an `AbstractControlOptions` object that contains\n     * validation functions and a validation trigger.\n     *\n     * @param {?=} asyncValidator A single async validator or array of async validator\n     * functions.\n     *\n     * @return {?}\n     */\n    control(formState, validatorOrOpts, asyncValidator) {\n        return new FormControl(formState, validatorOrOpts, asyncValidator);\n    }\n    /**\n     * Constructs a new `FormArray` from the given array of configurations,\n     * validators and options.\n     *\n     * @param {?} controlsConfig An array of child controls or control configs. Each\n     * child control is given an index when it is registered.\n     *\n     * @param {?=} validatorOrOpts A synchronous validator function, or an array of\n     * such functions, or an `AbstractControlOptions` object that contains\n     * validation functions and a validation trigger.\n     *\n     * @param {?=} asyncValidator A single async validator or array of async validator\n     * functions.\n     * @return {?}\n     */\n    array(controlsConfig, validatorOrOpts, asyncValidator) {\n        /** @type {?} */\n        const controls = controlsConfig.map((/**\n         * @param {?} c\n         * @return {?}\n         */\n        c => this._createControl(c)));\n        return new FormArray(controls, validatorOrOpts, asyncValidator);\n    }\n    /**\n     * \\@internal\n     * @param {?} controlsConfig\n     * @return {?}\n     */\n    _reduceControls(controlsConfig) {\n        /** @type {?} */\n        const controls = {};\n        Object.keys(controlsConfig).forEach((/**\n         * @param {?} controlName\n         * @return {?}\n         */\n        controlName => {\n            controls[controlName] = this._createControl(controlsConfig[controlName]);\n        }));\n        return controls;\n    }\n    /**\n     * \\@internal\n     * @param {?} controlConfig\n     * @return {?}\n     */\n    _createControl(controlConfig) {\n        if (controlConfig instanceof FormControl || controlConfig instanceof FormGroup ||\n            controlConfig instanceof FormArray) {\n            return controlConfig;\n        }\n        else if (Array.isArray(controlConfig)) {\n            /** @type {?} */\n            const value = controlConfig[0];\n            /** @type {?} */\n            const validator = controlConfig.length > 1 ? controlConfig[1] : null;\n            /** @type {?} */\n            const asyncValidator = controlConfig.length > 2 ? controlConfig[2] : null;\n            return this.control(value, validator, asyncValidator);\n        }\n        else {\n            return this.control(controlConfig);\n        }\n    }\n}\nFormBuilder.ɵfac = function FormBuilder_Factory(t) { return new (t || FormBuilder)(); };\nFormBuilder.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: FormBuilder, factory: FormBuilder.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FormBuilder, [{\n        type: Injectable\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/version.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n * @type {?}\n */\nconst VERSION = new Version('9.1.9');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/form_providers.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Exports the required providers and directives for template-driven forms,\n * making them available for import by NgModules that import this module.\n *\n * @see [Forms Overview](/guide/forms-overview)\n * @see [Template-driven Forms Guide](/guide/forms)\n *\n * \\@publicApi\n */\nclass FormsModule {\n}\nFormsModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: FormsModule });\nFormsModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function FormsModule_Factory(t) { return new (t || FormsModule)(); }, providers: [RadioControlRegistry], imports: [ɵInternalFormsSharedModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(FormsModule, { declarations: [NgModel, NgModelGroup, NgForm], exports: [ɵInternalFormsSharedModule, NgModel, NgModelGroup, NgForm] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FormsModule, [{\n        type: NgModule,\n        args: [{\n                declarations: TEMPLATE_DRIVEN_DIRECTIVES,\n                providers: [RadioControlRegistry],\n                exports: [ɵInternalFormsSharedModule, TEMPLATE_DRIVEN_DIRECTIVES]\n            }]\n    }], null, null); })();\n/**\n * Exports the required infrastructure and directives for reactive forms,\n * making them available for import by NgModules that import this module.\n *\n * @see [Forms Overview](guide/forms-overview)\n * @see [Reactive Forms Guide](guide/reactive-forms)\n *\n * \\@publicApi\n */\nclass ReactiveFormsModule {\n    /**\n     * \\@description\n     * Provides options for configuring the reactive forms module.\n     *\n     * @param {?} opts An object of configuration options\n     * * `warnOnNgModelWithFormControl` Configures when to emit a warning when an `ngModel`\n     * binding is used with reactive form directives.\n     * @return {?}\n     */\n    static withConfig(opts) {\n        return {\n            ngModule: ReactiveFormsModule,\n            providers: [\n                { provide: NG_MODEL_WITH_FORM_CONTROL_WARNING, useValue: opts.warnOnNgModelWithFormControl }\n            ]\n        };\n    }\n}\nReactiveFormsModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: ReactiveFormsModule });\nReactiveFormsModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function ReactiveFormsModule_Factory(t) { return new (t || ReactiveFormsModule)(); }, providers: [FormBuilder, RadioControlRegistry], imports: [ɵInternalFormsSharedModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(ReactiveFormsModule, { declarations: [FormControlDirective, FormGroupDirective, FormControlName, FormGroupName, FormArrayName], exports: [ɵInternalFormsSharedModule, FormControlDirective, FormGroupDirective, FormControlName, FormGroupName, FormArrayName] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ReactiveFormsModule, [{\n        type: NgModule,\n        args: [{\n                declarations: [REACTIVE_DRIVEN_DIRECTIVES],\n                providers: [FormBuilder, RadioControlRegistry],\n                exports: [ɵInternalFormsSharedModule, REACTIVE_DRIVEN_DIRECTIVES]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/src/forms.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/forms/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { AbstractControl, AbstractControlDirective, AbstractFormGroupDirective, COMPOSITION_BUFFER_MODE, CheckboxControlValueAccessor, CheckboxRequiredValidator, ControlContainer, DefaultValueAccessor, EmailValidator, FormArray, FormArrayName, FormBuilder, FormControl, FormControlDirective, FormControlName, FormGroup, FormGroupDirective, FormGroupName, FormsModule, MaxLengthValidator, MinLengthValidator, NG_ASYNC_VALIDATORS, NG_VALIDATORS, NG_VALUE_ACCESSOR, NgControl, NgControlStatus, NgControlStatusGroup, NgForm, NgModel, NgModelGroup, NgSelectOption, NumberValueAccessor, PatternValidator, RadioControlValueAccessor, RangeValueAccessor, ReactiveFormsModule, RequiredValidator, SelectControlValueAccessor, SelectMultipleControlValueAccessor, VERSION, Validators, ɵInternalFormsSharedModule, ɵNgNoValidate, ɵNgSelectMultipleOption, SHARED_FORM_DIRECTIVES as ɵangular_packages_forms_forms_a, TEMPLATE_DRIVEN_DIRECTIVES as ɵangular_packages_forms_forms_b, CHECKBOX_REQUIRED_VALIDATOR as ɵangular_packages_forms_forms_ba, EMAIL_VALIDATOR as ɵangular_packages_forms_forms_bb, MIN_LENGTH_VALIDATOR as ɵangular_packages_forms_forms_bc, MAX_LENGTH_VALIDATOR as ɵangular_packages_forms_forms_bd, PATTERN_VALIDATOR as ɵangular_packages_forms_forms_be, REACTIVE_DRIVEN_DIRECTIVES as ɵangular_packages_forms_forms_c, ɵInternalFormsSharedModule as ɵangular_packages_forms_forms_d, CHECKBOX_VALUE_ACCESSOR as ɵangular_packages_forms_forms_e, DEFAULT_VALUE_ACCESSOR as ɵangular_packages_forms_forms_f, AbstractControlStatus as ɵangular_packages_forms_forms_g, ngControlStatusHost as ɵangular_packages_forms_forms_h, formDirectiveProvider as ɵangular_packages_forms_forms_i, formControlBinding as ɵangular_packages_forms_forms_j, modelGroupProvider as ɵangular_packages_forms_forms_k, NUMBER_VALUE_ACCESSOR as ɵangular_packages_forms_forms_l, RADIO_VALUE_ACCESSOR as ɵangular_packages_forms_forms_m, RadioControlRegistry as ɵangular_packages_forms_forms_n, RANGE_VALUE_ACCESSOR as ɵangular_packages_forms_forms_o, NG_MODEL_WITH_FORM_CONTROL_WARNING as ɵangular_packages_forms_forms_p, formControlBinding$1 as ɵangular_packages_forms_forms_q, controlNameBinding as ɵangular_packages_forms_forms_r, formDirectiveProvider$1 as ɵangular_packages_forms_forms_s, formGroupNameProvider as ɵangular_packages_forms_forms_t, formArrayNameProvider as ɵangular_packages_forms_forms_u, SELECT_VALUE_ACCESSOR as ɵangular_packages_forms_forms_v, SELECT_MULTIPLE_VALUE_ACCESSOR as ɵangular_packages_forms_forms_w, ɵNgSelectMultipleOption as ɵangular_packages_forms_forms_x, ɵNgNoValidate as ɵangular_packages_forms_forms_y, REQUIRED_VALIDATOR as ɵangular_packages_forms_forms_z };\n\n//# sourceMappingURL=forms.js.map","interface DefaultOptions {\r\n    showLeafArrayIndexes?: boolean;\r\n    includeNullValues?: boolean;\r\n    mapping?: Function;\r\n}\r\n\r\nconst defaultOptions: DefaultOptions = {\r\n    showLeafArrayIndexes: true,\r\n    includeNullValues: true,\r\n    mapping: function(value) {\r\n        if (typeof value === 'boolean') {\r\n            return +value ? '1' : '0';\r\n        }\r\n        return value;\r\n    }\r\n};\r\n\r\nfunction isJsonObject(val) {\r\n    return !Array.isArray(val) && typeof val === 'object' && !!val && !(val instanceof Blob);\r\n}\r\n\r\nexport function objToFormData(jsonObject, options: DefaultOptions = {}) {\r\n    const mergedOptions = {...defaultOptions, ...options};\r\n    return convertRecursively(jsonObject, mergedOptions);\r\n}\r\n\r\nfunction convertRecursively(jsonObject: object, options: DefaultOptions, parentKey?: string, carryFormData?: FormData) {\r\n    const formData = carryFormData || new FormData();\r\n\r\n    let index = 0;\r\n\r\n    for (const key in jsonObject) {\r\n        if (jsonObject.hasOwnProperty(key)) {\r\n            let propName = parentKey || key;\r\n            const value = options.mapping(jsonObject[key]);\r\n\r\n            if (parentKey && isJsonObject(jsonObject)) {\r\n                propName = parentKey + '[' + key + ']';\r\n            }\r\n\r\n            if (parentKey && Array.isArray(jsonObject)) {\r\n                if (Array.isArray(value) || options.showLeafArrayIndexes ) {\r\n                    propName = parentKey + '[' + index + ']';\r\n                } else {\r\n                    propName = parentKey + '[]';\r\n                }\r\n            }\r\n\r\n            if (Array.isArray(value) || isJsonObject(value)) {\r\n                convertRecursively(value, options, propName, formData);\r\n            } else if (value instanceof FileList) {\r\n                for (let j = 0; j < value.length; j++) {\r\n                    formData.append(propName + '[' + j + ']', value.item(j));\r\n                }\r\n            } else if (value instanceof Blob) {\r\n                formData.append(propName, value, value['name']);\r\n            } else if (((value === null && options.includeNullValues) || value !== null) && value !== undefined) {\r\n                formData.append(propName, value);\r\n            }\r\n        }\r\n\r\n        index++;\r\n    }\r\n\r\n    return formData;\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {AppConfig} from './app-config';\r\nimport * as Dot from 'dot-object';\r\nimport merge from 'deepmerge';\r\nimport {AppHttpClient} from '../http/app-http-client.service';\r\nimport {objToFormData} from '../utils/obj-to-form-data';\r\nimport {SettingsJsonPayload, SettingsPayload} from './settings-payload';\r\nimport {BehaviorSubject} from 'rxjs';\r\n\r\n@Injectable({\r\n    providedIn: 'root',\r\n})\r\nexport class Settings {\r\n    private http: AppHttpClient;\r\n    private config$ = new BehaviorSubject<AppConfig>({});\r\n    public csrfToken: string;\r\n\r\n    public setMultiple(settings: AppConfig) {\r\n        if ( ! settings) return;\r\n        const newConfig = {...this.config$.value};\r\n        Object.entries(settings).forEach(([key, value]) => {\r\n            if (value === '0' || value === '1') {\r\n                value = parseInt(value);\r\n            }\r\n            Dot.set(key, value, newConfig);\r\n        });\r\n        this.config$.next(newConfig);\r\n    }\r\n\r\n    public merge(config: object) {\r\n        this.config$.next(merge(this.config$.value, config));\r\n    }\r\n\r\n    public set(name: keyof AppConfig|any, value: AppConfig[keyof AppConfig]|any) {\r\n        const newConfig = {...this.config$.value};\r\n        Dot.set(name, value, newConfig);\r\n        this.config$.next(newConfig);\r\n    }\r\n\r\n    public replace(config: AppConfig) {\r\n        this.config$.next(config);\r\n    }\r\n\r\n    public get(name: keyof AppConfig|any, defaultValue: any = null): any {\r\n        const value = Dot.pick(name, this.config$.value);\r\n        if (value == null) {\r\n            return defaultValue;\r\n        } else {\r\n            return value;\r\n        }\r\n    }\r\n\r\n    public getFlat(name?: string) {\r\n        return Dot.dot(name ? this.config$.value[name] : this.config$.value);\r\n    }\r\n\r\n    public all$() {\r\n        return this.config$.asObservable();\r\n    }\r\n\r\n    public getAll() {\r\n        return this.config$.value;\r\n    }\r\n\r\n    public has(name: keyof AppConfig): boolean {\r\n        return !!Dot.pick(name as string, this.config$.value);\r\n    }\r\n\r\n    /**\r\n     * Get a json setting by key and decode it.\r\n     */\r\n    public getJson(name: keyof AppConfig, defaultValue: any = null) {\r\n        const value = this.get(name, defaultValue);\r\n        if (typeof value !== 'string') return value;\r\n        return JSON.parse(value);\r\n    }\r\n\r\n    /**\r\n     * Get base url for the app.\r\n     */\r\n    public getBaseUrl(forceServerUrl = false): string {\r\n        // sometimes we might need to get base url supplied by backend\r\n        // even in development environment, for example, to prevent\r\n        // uploaded images from having proxy urls like \"localhost:4200\"\r\n        if (this.has('base_url') && (this.get('vebto.environment') === 'production' || forceServerUrl)) {\r\n            return this.get('base_url') + '/';\r\n        } else if (document.querySelector('base')) {\r\n            return document.querySelector('base')['href'];\r\n        } else {\r\n            // 'https://site.com/subdomain/index.html/\" => 'https://site.com/subdomain/'\r\n            const url = window.location.href.split('?')[0];\r\n            return url.replace(/([^\\/]+\\.\\w+($|\\/$))/, '');\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Get app's asset base url.\r\n     */\r\n    public getAssetUrl(suffix?: string, forceServerUrl = false): string {\r\n        let uri = (this.get('vebto.assetsUrl') || this.getBaseUrl(forceServerUrl));\r\n        const prefix = this.get('vebto.assetsPrefix');\r\n\r\n        // in production assets will be in \"client\" sub-folder\r\n        if (this.get('vebto.environment') === 'production' && prefix) {\r\n            uri += prefix + '/';\r\n        }\r\n\r\n        uri += 'assets/';\r\n\r\n        if (suffix) uri += suffix;\r\n\r\n        return uri;\r\n    }\r\n\r\n    /**\r\n     * Save specified setting on the server.\r\n     */\r\n    public save(settings: SettingsPayload) {\r\n        this.setMultiple(settings.client);\r\n        const jsonSettings = {files: settings.files} as SettingsJsonPayload;\r\n        // need to encode settings as json to preserve\r\n        // booleans as form data will always be a string\r\n        // also need to encode as base64 to make sure requests\r\n        // are not blocked when setting contains <scripts>\r\n        jsonSettings.client = JSON.stringify(settings.client);\r\n        jsonSettings.server = JSON.stringify(settings.server);\r\n        const data = objToFormData(jsonSettings);\r\n        return this.http.post('settings', data);\r\n    }\r\n\r\n    /**\r\n     * Check if any social login is enabled.\r\n     */\r\n    public anySocialLoginEnabled() {\r\n        const names = ['facebook', 'google', 'twitter'];\r\n        return names.filter(name => this.get('social.' + name + '.enable')).length > -1;\r\n    }\r\n\r\n    /**\r\n     * Set HttpClient instance.\r\n     */\r\n    public setHttpClient(http: AppHttpClient) {\r\n        this.http = http;\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {Group, IEvent, IObjectOptions, IText, ITextOptions, Object} from 'fabric/fabric-impl';\r\nimport {CanvasStateService} from '../canvas-state.service';\r\nimport {Subject} from 'rxjs';\r\nimport {FormBuilder} from '@angular/forms';\r\nimport {ActiveObjectForm} from './active-object.form';\r\nimport {getFabricObjectProps} from '../../utils/get-fabric-object-props';\r\nimport {normalizeObjectProps} from '../../utils/normalize-object-props';\r\nimport {ObjectNames} from '../../objects/object-names.enum';\r\nimport {Settings} from '@common/core/config/settings.service';\r\nimport {randomString} from '@common/core/utils/random-string';\r\n\r\n@Injectable()\r\nexport class ActiveObjectService {\r\n    public propsChanged$ = new Subject();\r\n    public form = ActiveObjectForm.build(this.fb);\r\n\r\n    constructor(\r\n        private fb: FormBuilder,\r\n        private config: Settings,\r\n        private canvasState: CanvasStateService,\r\n    ) {}\r\n\r\n    /**\r\n     * @hidden\r\n     */\r\n    public init() {\r\n        // set default values before subscribing to changes\r\n        this.syncForm();\r\n        this.form.valueChanges\r\n            .subscribe(values => {\r\n                this.setValues(values);\r\n            });\r\n    }\r\n\r\n    /**\r\n     * Check if active object (like text) is currently being edited by user.\r\n     */\r\n    public isEditing() {\r\n        const text = this.get() as IText;\r\n        return text && text.isEditing;\r\n    }\r\n\r\n    /**\r\n     * Set specified options on currently active object.\r\n     */\r\n    public setValues(values: ITextOptions) {\r\n        const obj = this.get();\r\n        if ( ! obj) return;\r\n\r\n        // apply fill color to each svg line separately, so sticker\r\n        // is not recolored when other values like shadow change\r\n        if (obj.name === ObjectNames.sticker.name && values.fill !== obj.fill) {\r\n            if ((obj as Group).forEachObject) {\r\n                (obj as Group).forEachObject(path => path.set('fill', values.fill));\r\n            }\r\n        }\r\n\r\n        this.propsChanged$.next();\r\n        obj.set(normalizeObjectProps(values));\r\n        this.canvasState.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Get value for specified object option.\r\n     */\r\n    public getValue(name: keyof IObjectOptions) {\r\n        return this.get().get(name);\r\n    }\r\n\r\n    /**\r\n     * Get currently active object.\r\n     */\r\n    public get() {\r\n        const obj = this.canvasState.fabric && this.canvasState.fabric.getActiveObject();\r\n        if ( ! obj || ! obj.name) return null;\r\n        if (obj.name.indexOf('crop.') > -1 || obj.name.indexOf('round.') > -1) return null;\r\n        return obj;\r\n    }\r\n\r\n    /**\r\n     * Move currently active object on canvas in specified direction.\r\n     */\r\n    public move(direction: 'top'|'right'|'bottom'|'left', amount: number) {\r\n        const obj = this.get();\r\n        if ( ! obj) return;\r\n        obj.set(direction as any, obj[direction] + amount);\r\n        this.canvasState.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Bring active object to front of canvas.\r\n     */\r\n    public bringToFront() {\r\n        const obj = this.get(); if ( ! obj) return;\r\n        obj.bringToFront();\r\n        this.canvasState.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Send active object to the back of canvas.\r\n     */\r\n    public sendToBack() {\r\n        const obj = this.get(); if ( ! obj) return;\r\n        obj.sendToBack();\r\n        this.canvasState.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Flip active object horizontally.\r\n     */\r\n    public flipHorizontal() {\r\n        const obj = this.get();\r\n        if ( ! obj) return;\r\n        obj.flipX = !obj.flipX;\r\n        this.canvasState.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Duplicate active object.\r\n     */\r\n    public duplicate() {\r\n        const original = this.get();\r\n        if ( ! original) return;\r\n\r\n        this.deselect();\r\n\r\n        original.clone(clonedObj => {\r\n            clonedObj.set({\r\n                left: original.left + 10,\r\n                top: original.top + 10,\r\n                data: {...original.data, id: randomString(10)},\r\n                name: original.name,\r\n            });\r\n\r\n            this.canvasState.fabric.add(clonedObj);\r\n            this.select(clonedObj);\r\n            this.canvasState.fabric.requestRenderAll();\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Get ID for currently active object.\r\n     */\r\n    public getId() {\r\n        const obj = this.get();\r\n        return obj && obj.data ? obj.data.id : null;\r\n    }\r\n\r\n    /**\r\n     * Listen to specified object event.\r\n     */\r\n    public on(eventName: string, handler: (e: IEvent) => void) {\r\n        const obj = this.get();\r\n        if (obj) {\r\n            obj.on(eventName, handler);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Delete currently active object.\r\n     */\r\n    public delete() {\r\n        const obj = this.get();\r\n        if ( ! obj) return;\r\n        this.canvasState.fabric.remove(obj);\r\n        this.canvasState.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Deselect active object.\r\n     */\r\n    public deselect() {\r\n        this.canvasState.fabric.discardActiveObject();\r\n        this.canvasState.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Set specified object as new active object.\r\n     */\r\n    public select(obj: Object) {\r\n        this.canvasState.fabric.setActiveObject(obj);\r\n    }\r\n\r\n    /**\r\n     * @hidden\r\n     */\r\n    public syncForm() {\r\n        if (this.get()) {\r\n            this.form.patchValue(getFabricObjectProps(this.get()), {emitEvent: false});\r\n        } else {\r\n            this.form.patchValue({\r\n                ...this.config.get('pixie.objectDefaults.global'),\r\n                fontFamily: this.config.get('pixie.objectDefaults.text.fontFamily'),\r\n            });\r\n        }\r\n    }\r\n}\r\n","import {fabric} from 'fabric';\r\nimport {ReplaySubject} from 'rxjs';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {Injectable} from '@angular/core';\r\n\r\nexport enum ContentLoadingStateDisplayName {\r\n    blank = 'Loading Canvas',\r\n    overlayImage = 'Loading Image',\r\n    mainImage = 'Loading Image',\r\n    state = 'Loading State',\r\n    merge = 'Processing Image'\r\n}\r\n\r\nexport type ContentLoadingStateName = 'blank'|'overlayImage'|'mainImage'|'state'|'merge';\r\n\r\nexport interface ContentLoadingState {\r\n    name: ContentLoadingStateName;\r\n    loading: boolean;\r\n}\r\n\r\n@Injectable()\r\nexport class CanvasStateService {\r\n    public original: {\r\n        width: number;\r\n        height: number;\r\n    } = {width: 0, height: 0};\r\n\r\n    /**\r\n     * Fired when canvas and fabric.js are fully loaded and ready for interaction.\r\n     */\r\n    public loaded = new ReplaySubject(1);\r\n\r\n    /**\r\n     * Canvas wrapper el, centers the canvas vertically and horizontally.\r\n     */\r\n    public wrapperEl: HTMLElement;\r\n\r\n    /**\r\n     * Inner canvas wrapper el, same size as canvas itself.\r\n     */\r\n    public maskWrapperEl: HTMLElement;\r\n\r\n    public fabric: fabric.Canvas;\r\n\r\n    public contentLoadingState$ = new ReplaySubject<ContentLoadingState>(1);\r\n\r\n    constructor(private config: Settings) {}\r\n\r\n    /**\r\n     * Check if nothing to open was specified via config.\r\n     */\r\n    public isEmpty(): boolean {\r\n        return !this.config.get('pixie.image') &&\r\n            !this.config.get('pixie.blankCanvasSize') &&\r\n            (!this.fabric || this.fabric.getObjects().length === 0);\r\n    }\r\n\r\n    /**\r\n     * Calculate canvas wrapper size including margins.\r\n     */\r\n    public calcWrapperSize() {\r\n        const rect = this.wrapperEl.getBoundingClientRect();\r\n        return {width: rect.width, height: rect.height};\r\n    }\r\n}\r\n","import {HistoryItem} from '../../../image-editor/history/history-item.interface';\r\n\r\nexport class HistoryChanged {\r\n  public static readonly type = '[History] Changed';\r\n}\r\n\r\nexport class UpdatePointerById {\r\n  public static readonly type = '[History] Update Pointer By History Item ID';\r\n  constructor(public id: string) {}\r\n}\r\n\r\nexport class AddHistoryItem {\r\n  public static readonly type = '[History] Add Item';\r\n  constructor(public item: HistoryItem) {}\r\n}\r\n\r\nexport class ReplaceCurrentItem {\r\n  public static readonly type = '[History] Replace Current Item';\r\n  constructor(public item: HistoryItem) {}\r\n}\r\n\r\nexport class ResetHistory {\r\n  public static readonly type = '[History] Reset';\r\n}\r\n","import {State, Action, Selector, StateContext, createSelector} from '@ngxs/store';\r\nimport {HistoryItem} from '../../../image-editor/history/history-item.interface';\r\nimport {AddHistoryItem, ReplaceCurrentItem, ResetHistory, UpdatePointerById} from './history.actions';\r\nimport {Injectable} from '@angular/core';\r\n\r\nexport interface HistoryStateModel {\r\n    items: HistoryItem[];\r\n    pointer: number;\r\n}\r\n\r\n@State<HistoryStateModel>({\r\n    name: 'history',\r\n    defaults: {\r\n        items: [],\r\n        pointer: 0,\r\n    }\r\n})\r\n@Injectable()\r\nexport class HistoryState {\r\n    @Selector()\r\n    public static canUndo({pointer}: HistoryStateModel) {\r\n        return  pointer - 1 > -1;\r\n    }\r\n\r\n    @Selector()\r\n    public static canRedo({items, pointer}: HistoryStateModel) {\r\n        return items.length > (pointer + 1);\r\n    }\r\n\r\n    @Selector()\r\n    public static items(state: HistoryStateModel) {\r\n        return state.items;\r\n    }\r\n\r\n    @Selector()\r\n    public static activeItemId(state: HistoryStateModel) {\r\n        return state.items[state.pointer].id;\r\n    }\r\n\r\n    static item(which: 'previous'|'next'|'current') {\r\n        return createSelector([HistoryState], (state: HistoryStateModel) => {\r\n            let index = state.pointer;\r\n            switch (which) {\r\n                case 'previous':\r\n                    index = state.pointer - 1;\r\n                    break;\r\n                case 'next':\r\n                    index = state.pointer + 1;\r\n                    break;\r\n                default:\r\n                    index = state.pointer;\r\n            }\r\n            return state.items[index];\r\n        });\r\n    }\r\n\r\n    @Action(AddHistoryItem)\r\n    addItem(ctx: StateContext<HistoryStateModel>, {item}: AddHistoryItem) {\r\n        const stateUntilCurrentPointer = ctx.getState().items.slice(0, ctx.getState().pointer + 1);\r\n        const newItems = [...stateUntilCurrentPointer, item];\r\n        ctx.patchState({\r\n            items: newItems,\r\n            pointer: newItems.length - 1\r\n        });\r\n    }\r\n\r\n    @Action(ReplaceCurrentItem)\r\n    replaceCurrentItem(ctx: StateContext<HistoryStateModel>, action: ReplaceCurrentItem) {\r\n        const items = ctx.getState().items.slice();\r\n        items[ctx.getState().pointer] = action.item;\r\n        ctx.patchState({items});\r\n    }\r\n\r\n    @Action(UpdatePointerById)\r\n    updatePointerById(ctx: StateContext<HistoryStateModel>, {id}: UpdatePointerById) {\r\n        const index = ctx.getState().items.findIndex(item => item.id === id);\r\n        ctx.patchState({pointer: index});\r\n    }\r\n\r\n    @Action(ResetHistory)\r\n    resetHistory(ctx: StateContext<HistoryStateModel>) {\r\n        ctx.patchState({\r\n            items: [],\r\n            pointer: 0\r\n        });\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {CanvasService} from '../../canvas/canvas.service';\nimport {Settings} from 'common/core/config/settings.service';\nimport {FramePatternsService} from './frame-patterns.service';\nimport {ActiveFrameService} from './active-frame.service';\nimport {FrameBuilderService} from './frame-builder.service';\nimport {Frame} from './frame';\n\n@Injectable({\n    providedIn: 'root'\n})\nexport class FrameToolService {\n    private frames: Frame[] = [];\n\n    constructor(\n        private config: Settings,\n        private canvas: CanvasService,\n        public patterns: FramePatternsService,\n        private activeFrame: ActiveFrameService,\n        private frameBuilder: FrameBuilderService,\n    ) {\n        this.config.all$().subscribe(() => {\n            this.frames = this.config.get('pixie.tools.frame.items');\n        });\n\n        this.canvas.state.loaded.subscribe(() => {\n            this.canvas.fabric().on('object:added', () => {\n                this.activeFrame.group && this.activeFrame.group.moveTo(98);\n            });\n        });\n    }\n\n    /**\n     * Add a new frame to canvas.\n     */\n    public add(frameName: string) {\n        const frame = this.getByName(frameName);\n        if (this.activeFrame.is(frame)) return;\n\n        if (this.activeFrame.exists()) {\n            this.activeFrame.remove();\n        }\n\n        const size = this.calcFrameSize(frame.size.default);\n        this.frameBuilder.build(frame, size);\n    }\n\n    /**\n     * Resize active frame to specified value.\n     */\n    public resize(value: number) {\n        const size = this.calcFrameSize(value);\n        this.frameBuilder.resize(size);\n        this.patterns.scale(size);\n        this.canvas.render();\n    }\n\n    /**\n     * Change active \"basic\" frame color.\n     */\n    public changeColor(value: string) {\n        this.activeFrame.changeColor(value);\n    }\n\n    public remove() {\n        this.activeFrame.remove();\n    }\n\n    /**\n     * Get frame by specified name.\n     */\n    public getByName(frameName: string) {\n        return this.getAll().find(frame => frame.name === frameName);\n    }\n\n    /**\n     * Get config of currently active frame.\n     */\n    public getActive(): Frame|null {\n        return this.activeFrame.config;\n    }\n\n    public getAll() {\n        return this.frames;\n    }\n\n    /**\n     * Calculate frame size based on canvas size and specified percentage.\n     */\n    private calcFrameSize(percentage: number) {\n        const min = Math.min(this.canvas.state.original.width, this.canvas.state.original.height);\n        return ((percentage / 100) * min);\n    }\n}\n","import {Injectable} from '@angular/core';\r\nimport {fabric} from 'fabric';\r\nimport {staticObjectConfig} from '../../objects/static-object-config';\r\nimport {ActiveFrameService} from './active-frame.service';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {FramePatternsService} from './frame-patterns.service';\r\nimport {Frame} from './frame';\r\n\r\ninterface FrameRect {\r\n    top?: number;\r\n    left?: number;\r\n    width?: number;\r\n    height?: number;\r\n    fill?: string;\r\n}\r\n\r\n@Injectable()\r\nexport class FrameBuilderService {\r\n    constructor(\r\n        private config: Settings,\r\n        private activeFrame: ActiveFrameService,\r\n        private canvas: CanvasService,\r\n        private patterns: FramePatternsService,\r\n    ) {}\r\n\r\n    /**\r\n     * Build a new canvas frame group.\r\n     */\r\n    public build(frame: Frame, size: number) {\r\n        this.createGroup(frame);\r\n        this.createParts(frame);\r\n        this.resize(size);\r\n        this.activeFrame.config = frame;\r\n        this.canvas.fabric().add(this.activeFrame.group);\r\n\r\n        // basic frame has no pattern fill\r\n        if (frame.mode === 'basic') {\r\n            return this.canvas.render();\r\n        }\r\n\r\n        this.patterns.load(frame).then(() => {\r\n            this.patterns.scale(size);\r\n            this.canvas.render();\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Create group for frame objects.\r\n     */\r\n    private createGroup(frame: Frame) {\r\n        this.activeFrame.group = new fabric.Group([], Object.assign({\r\n            name: 'frame.group',\r\n            excludeFromExport: true,\r\n            width: this.canvas.state.original.width,\r\n            height: this.canvas.state.original.height,\r\n            data: {frameName: frame.name}\r\n        }, staticObjectConfig));\r\n    }\r\n\r\n    /**\r\n     * Create rect object for each frame part.\r\n     */\r\n    private createParts(frame: Frame) {\r\n        this.activeFrame.getPartNames().forEach(part => {\r\n            const fill = frame.mode === 'basic' ? this.config.get('pixie.objectDefaults.global.fill') : null;\r\n            this.activeFrame[part] = new fabric.Rect({...staticObjectConfig, fill, name: 'frame.rect.' + part});\r\n            this.activeFrame.group.add(this.activeFrame[part]);\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Position and resize all frame parts.\r\n     */\r\n    public resize(value: number) {\r\n        const fullWidth = this.canvas.state.original.width,\r\n            fullHeight = this.canvas.state.original.height,\r\n            frame = this.activeFrame,\r\n            cornerSize = value;\r\n\r\n        this.positionPart('topLeft', {\r\n            width: cornerSize, height: cornerSize,\r\n        });\r\n\r\n        this.positionPart('topRight', {\r\n            left: fullWidth - frame.topLeft.getScaledWidth(),\r\n            width: cornerSize, height: cornerSize,\r\n        });\r\n\r\n        this.positionPart('top', {\r\n            left: frame.topLeft.getScaledWidth() - 2,\r\n            width: fullWidth - frame.topLeft.getScaledWidth() - frame.topRight.getScaledWidth() + 4,\r\n            height: cornerSize,\r\n        });\r\n\r\n        this.positionPart('bottomLeft', {\r\n            top: fullHeight - frame.topLeft.getScaledHeight(),\r\n            width: cornerSize, height: cornerSize,\r\n        });\r\n\r\n        this.positionPart('left', {\r\n            top: frame.topLeft.getScaledHeight() - 2,\r\n            width: cornerSize,\r\n            height: fullHeight - frame.topLeft.getScaledHeight() - frame.bottomLeft.getScaledHeight() + 4,\r\n        });\r\n\r\n        this.positionPart('bottomRight', {\r\n            left: fullWidth - frame.bottomLeft.getScaledWidth(),\r\n            top: fullHeight - frame.topRight.getScaledWidth(),\r\n            width: cornerSize,\r\n            height: cornerSize,\r\n        });\r\n\r\n        this.positionPart('bottom', {\r\n            left: frame.bottomLeft.getScaledWidth() - 2,\r\n            top: fullHeight - frame.top.getScaledHeight(),\r\n            width: frame.top.getScaledWidth() + 4,\r\n            height: cornerSize,\r\n        });\r\n\r\n        this.positionPart('right', {\r\n            left: fullWidth - frame.left.getScaledWidth(),\r\n            top: frame.topRight.getScaledHeight() - 2,\r\n            width: frame.left.width,\r\n            height: fullHeight - frame.topRight.getScaledHeight() - frame.bottomRight.getScaledHeight() + 4,\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Position specified frame part within canvas group.\r\n     */\r\n    private positionPart(part: string, rect: FrameRect) {\r\n        // make sure we're positioning from top left corner instead of center\r\n        rect.top = -(this.activeFrame.group.height / 2) + (rect.top || 0);\r\n        rect.left = -(this.activeFrame.group.width / 2) + (rect.left || 0);\r\n        this.activeFrame[part].set(rect);\r\n    }\r\n}\r\n","import {fabric} from 'fabric';\r\nimport {IImageOptions, Image as IImage, IObjectOptions} from 'fabric/fabric-impl';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {Injectable} from '@angular/core';\r\nimport {ActiveFrameService} from './active-frame.service';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {Frame} from './frame';\r\nimport {staticObjectConfig} from '../../objects/static-object-config';\r\n\r\n@Injectable()\r\nexport class FramePatternsService {\r\n\r\n    public patternCache: {name: string, img: IImage}[];\r\n\r\n    constructor(\r\n        private config: Settings,\r\n        private activeFrame: ActiveFrameService,\r\n        private canvas: CanvasService,\r\n    ) {}\r\n\r\n    /**\r\n     * Fill frame part objects with matching pattern images.\r\n     */\r\n    private fillParts(mode: 'stretch'|'repeat'|'basic') {\r\n        this.patternCache.forEach(part => {\r\n            this.fillPartWithPattern(part, mode);\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Fill specified frame part with matching pattern.\r\n     */\r\n    private fillPartWithPattern(part: {name: string, img: IImage}, mode: 'stretch'|'repeat'|'basic') {\r\n        const patternSourceCanvas = new fabric.StaticCanvas();\r\n        patternSourceCanvas.add(part.img);\r\n\r\n        const pattern = new fabric.Pattern({\r\n            source: () => {\r\n                const width = part.img.getScaledWidth(),\r\n                    height = part.img.getScaledHeight();\r\n\r\n                if (width > 1 && height > 1) {\r\n                    patternSourceCanvas.setDimensions({width, height});\r\n                    patternSourceCanvas.renderAll();\r\n                }\r\n\r\n                return patternSourceCanvas.getElement();\r\n            },\r\n            repeat: mode === 'repeat' ? 'repeat' : 'no-repeat'\r\n        });\r\n\r\n        if (this.activeFrame[part.name]) {\r\n            this.activeFrame[part.name].set('fill', pattern);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Scale all frame patterns to fill their container rect objects.\r\n     */\r\n    public scale(value: number) {\r\n        const mode = this.activeFrame.config.mode;\r\n\r\n        if ( ! this.patternCache) return;\r\n\r\n        value = value / this.canvas.fabric().getRetinaScaling();\r\n\r\n        this.patternCache.forEach(part => {\r\n            // scale or repeat top and bottom sides\r\n            if (part.name === 'top' || part.name === 'bottom') {\r\n                if (mode === 'stretch') {\r\n                    this.scalePatternToWidth(part.img, this.canvas.state.original.width - (value * 2) + 4); // minus width of left and right corners\r\n                    this.scalePatternToHeight(part.img, value);\r\n                } else {\r\n                    part.img.scaleToHeight(value);\r\n                }\r\n            }\r\n\r\n            // scale or repeat left and right sides\r\n            else if (part.name === 'left' || part.name === 'right') {\r\n                if (mode === 'stretch') {\r\n                    this.scalePatternToWidth(part.img, value);\r\n                    this.scalePatternToHeight(part.img, this.canvas.state.original.height - (value * 2) + 4); // minus width of left and right corners\r\n                } else {\r\n                    part.img.scaleToWidth(value);\r\n                }\r\n            }\r\n\r\n            // scale corners\r\n            else {\r\n                part.img.scaleToWidth(value);\r\n            }\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Scale pattern image to specified width.\r\n     */\r\n    private scalePatternToWidth(pattern: IImage, value: number) {\r\n        const boundingRectFactor = pattern.getBoundingRect().width / pattern.getScaledWidth();\r\n        pattern.set('scaleX', value / pattern.width / boundingRectFactor);\r\n        pattern.setCoords();\r\n    }\r\n\r\n    /**\r\n     * Scale pattern image to specified height.\r\n     */\r\n    private scalePatternToHeight(pattern: IImage, value: number) {\r\n        const boundingRectFactor = pattern.getBoundingRect().height / pattern.getScaledHeight();\r\n        pattern.set('scaleY', value / pattern.height / boundingRectFactor);\r\n        pattern.setCoords();\r\n    }\r\n\r\n    /**\r\n     * Load all images needed to build specified frame.\r\n     */\r\n    public load(frame: Frame) {\r\n        const promises = this.activeFrame.getPartNames().map(part => {\r\n           return new Promise(resolve => {\r\n               const config = {...staticObjectConfig} as any;\r\n               if (this.config.get('pixie.crossOrigin')) {\r\n                   config.crossOrigin = 'anonymous';\r\n               }\r\n               fabric.Image.fromURL(this.getPartUrl(frame, part), img => {\r\n                   resolve({name: part, img});\r\n               }, config);\r\n           });\r\n        });\r\n\r\n        return Promise.all(promises).then(images => {\r\n            this.patternCache = images as any;\r\n            this.fillParts(frame.mode);\r\n        });\r\n    }\r\n\r\n    private getPartUrl(frame: Frame, part: string): string {\r\n        return this.getBaseUrl(frame) + '/' + part + '.png';\r\n    }\r\n\r\n    public getBaseUrl(frame: Frame): string {\r\n        return this.config.getAssetUrl('images/frames/' + frame.name, true);\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {Group, Rect} from 'fabric/fabric-impl';\r\nimport {Frame} from './frame';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\n\r\n@Injectable()\r\nexport class ActiveFrameService {\r\n\r\n    /**\r\n     * List of frame corner names.\r\n     */\r\n    public readonly corners = [\r\n        'topLeft', 'topRight', 'bottomLeft', 'bottomRight'\r\n    ];\r\n\r\n    /**\r\n     * List of frame side names.\r\n     */\r\n    public readonly sides = [\r\n        'top', 'right', 'bottom', 'left'\r\n    ];\r\n\r\n    public group: Group;\r\n    topLeft: Rect;\r\n    top: Rect;\r\n    topRight: Rect;\r\n    right: Rect;\r\n    bottomRight: Rect;\r\n    bottom: Rect;\r\n    bottomLeft: Rect;\r\n    left: Rect;\r\n\r\n    /**\r\n     * Configuration for currently active frame.\r\n     */\r\n    public config: Frame;\r\n\r\n    constructor(\r\n        private canvas: CanvasService\r\n    ) {}\r\n\r\n    public getPartNames() {\r\n        return this.corners.concat(this.sides);\r\n    }\r\n\r\n    /**\r\n     * Check if frame is added to canvas.\r\n     */\r\n    public exists(): boolean {\r\n        return this.config != null;\r\n    }\r\n\r\n    /**\r\n     * Remove currently active frame.\r\n     */\r\n    public remove() {\r\n        if ( ! this.exists()) return;\r\n\r\n        this.canvas.fabric().remove(this.group);\r\n\r\n        // delete all fabric object references\r\n        this.group.off();\r\n        this.group = null;\r\n        this.config = null;\r\n        this.getPartNames().forEach(part => {\r\n            this[part] = null;\r\n        });\r\n        this.canvas.render();\r\n    }\r\n\r\n    /**\r\n     * Check if specified frame is active.\r\n     */\r\n    public is(frame: Frame): boolean {\r\n        if ( ! this.config) return false;\r\n        return this.config.name === frame.name;\r\n    }\r\n\r\n    /**\r\n     * Change color of basic frame.\r\n     */\r\n    public changeColor(value: string) {\r\n        if (this.config.mode !== 'basic') return;\r\n\r\n        this.getPartNames().forEach(part => {\r\n            this[part].set('fill', value);\r\n        });\r\n\r\n        this.canvas.render();\r\n    }\r\n\r\n    /**\r\n     * Check if current frame is \"basic\".\r\n     */\r\n    public isBasic() {\r\n        return this.config && this.config.mode === 'basic';\r\n    }\r\n\r\n    public getMinSize() {\r\n        if ( ! this.exists()) return;\r\n        return this.config.size.min || 1;\r\n    }\r\n\r\n    public getMaxSize() {\r\n        if ( ! this.exists()) return;\r\n        return this.config.size.max || 35;\r\n    }\r\n\r\n    public getDefaultSize() {\r\n        if ( ! this.exists()) return;\r\n        return this.config.size.default || 15;\r\n    }\r\n}\r\n","import {Injectable, NgZone} from '@angular/core';\r\nimport {Object} from 'fabric/fabric-impl';\r\nimport {CanvasService} from '../canvas/canvas.service';\r\nimport {ActiveObjectService} from '../canvas/active-object/active-object.service';\r\nimport {Store} from '@ngxs/store';\r\nimport {ObjectsSynced} from '../state/editor-state-actions';\r\n\r\n@Injectable()\r\nexport class ObjectListService {\r\n    private objects: Object[] = [];\r\n\r\n    constructor(\r\n        private canvas: CanvasService,\r\n        private activeObject: ActiveObjectService,\r\n        private store: Store,\r\n        private zone: NgZone,\r\n    ) {\r\n        this.init();\r\n    }\r\n\r\n    /**\r\n     * Get all objects that are currently on canvas.\r\n     */\r\n    public getAll() {\r\n        return this.objects;\r\n    }\r\n\r\n    /**\r\n     * Get object with specified name from canvas.\r\n     */\r\n    public get(name: string) {\r\n        return this.objects.find(obj => obj.name === name);\r\n    }\r\n\r\n    /**\r\n     * Get object with specified id from canvas.\r\n     */\r\n    public getById(id: string) {\r\n        return this.objects.find(obj => obj.data.id === id);\r\n    }\r\n\r\n    /**\r\n     * Check whether specified object is currently selected.\r\n     */\r\n    public isActive(objectOrId: Object|string): boolean {\r\n        const objId = typeof objectOrId === 'string' ? objectOrId : objectOrId.data.id;\r\n        return this.activeObject.getId() === objId;\r\n    }\r\n\r\n    /**\r\n     * Check if object with specified name exists on canvas.\r\n     */\r\n    public has(name: string) {\r\n        return this.objects.findIndex(obj => obj.name === name) > -1;\r\n    }\r\n\r\n    /**\r\n     * Select specified object.\r\n     */\r\n    public select(object: Object) {\r\n        this.canvas.state.fabric.setActiveObject(object);\r\n        this.canvas.state.fabric.requestRenderAll();\r\n    }\r\n\r\n    /**\r\n     * Sync layers list with fabric.js objects.\r\n     * @hidden\r\n     */\r\n    public syncObjects() {\r\n        this.objects = this.canvas.fabric().getObjects()\r\n            .filter(obj => {\r\n                return obj.name && !obj.name.includes('crop.') &&\r\n                    !obj.name.includes('round.') && !obj.name.includes('frame.');\r\n            }).reverse();\r\n        this.store.dispatch(new ObjectsSynced());\r\n    }\r\n\r\n    /**\r\n     * @hidden\r\n     */\r\n    public init() {\r\n        this.canvas.state.loaded.subscribe(() => {\r\n            this.syncObjects();\r\n\r\n            this.canvas.fabric().on('object:added', (a) => {\r\n                this.zone.run(() => this.syncObjects());\r\n            });\r\n\r\n            this.canvas.fabric().on('object:removed', () => {\r\n                this.zone.run(() => this.syncObjects());\r\n            });\r\n        });\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {fabric} from 'fabric';\nimport {IEvent, Image, Image as FImage, Object} from 'fabric/fabric-impl';\nimport {CanvasPanService} from './canvas-pan.service';\nimport {ActiveObjectService} from './active-object/active-object.service';\nimport {CanvasZoomService} from './canvas-zoom.service';\nimport {Settings} from 'common/core/config/settings.service';\nimport {staticObjectConfig} from '../objects/static-object-config';\nimport {CanvasStateService, ContentLoadingStateName} from './canvas-state.service';\nimport {ObjectNames} from '../objects/object-names.enum';\n\n@Injectable()\nexport class CanvasService {\n    private readonly minWidth: number = 50;\n    private readonly minHeight: number = 50;\n\n    constructor(\n        public pan: CanvasPanService,\n        public zoom: CanvasZoomService,\n        public state: CanvasStateService,\n        public activeObject: ActiveObjectService,\n        private config: Settings,\n    ) {}\n\n    public render() {\n        this.state.fabric.requestRenderAll();\n    }\n\n    public fabric(): fabric.Canvas {\n        return this.state.fabric;\n    }\n\n    public getObjectById(id: string): Object|null {\n        return this.state.fabric.getObjects().find(obj => {\n            return obj.data && obj.data.id === id;\n        });\n    }\n\n    public resize(width: number, height: number) {\n        this.state.fabric.setWidth(width * this.zoom.getScaleFactor());\n        this.state.fabric.setHeight(height * this.zoom.getScaleFactor());\n        this.state.original.width = width;\n        this.state.original.height = height;\n    }\n\n    public loadMainImage(url: string, clearCanvas = true, loadStateName: ContentLoadingStateName = 'mainImage'): Promise<Image> {\n        return new Promise(resolve => {\n            this.state.contentLoadingState$.next({name: loadStateName, loading: true});\n            this.loadImage(url).then(img => {\n                if ( ! clearCanvas) {\n                    const bgImage = this.getMainImage();\n                    this.fabric().remove(bgImage);\n                } else {\n                    this.fabric().clear();\n                }\n                img.set(staticObjectConfig);\n                img.name = ObjectNames.mainImage.name;\n                this.state.fabric.add(img);\n                this.resize(img.width, img.height);\n                this.zoom.fitToScreen();\n                this.state.contentLoadingState$.next({name: loadStateName, loading: false});\n                resolve(img);\n                const callback = this.config.get('pixie.onMainImageLoaded');\n                if (callback) callback(img);\n            });\n        });\n    }\n\n    public loadImage(data: string): Promise<Image> {\n        return new Promise(resolve => {\n            fabric.util.loadImage(\n                data,\n                img => resolve(new fabric.Image(img)),\n                null,\n                this.config.get('pixie.crossOrigin')\n            );\n        });\n    }\n\n    public openNew(width: number, height: number): Promise<{width: number, height: number}> {\n        width = width < this.minWidth ? this.minWidth : width;\n        height = height < this.minHeight ? this.minHeight : height;\n\n        this.state.fabric.clear();\n        this.resize(width, height);\n\n        return new Promise(resolve => {\n            setTimeout(() => {\n                this.zoom.fitToScreen();\n                this.state.contentLoadingState$.next({name: 'blank', loading: false});\n                resolve({width, height});\n            });\n        });\n    }\n\n    /**\n     * Open image at given url in canvas.\n     */\n    public openImage(url, fitToScreen = true): Promise<Image> {\n        return new Promise(resolve => {\n            fabric.util.loadImage(url, image => {\n                if ( ! image) return;\n\n                const object = new fabric.Image(image);\n                object.name = ObjectNames.image.name;\n                object.opacity = 0;\n\n                // use either main image or canvas dimensions as outer boundaries for scaling new image\n                const maxWidth  = this.state.original.width,\n                    maxHeight = this.state.original.height;\n\n                // if image is wider or higher then the current canvas, we'll scale it down\n                if (fitToScreen && (object.width >= maxWidth || object.height >= maxHeight)) {\n\n                    // calc new image dimensions (main image height - 10% and width - 10%)\n                    const newWidth  = maxWidth - (0.1 * maxWidth),\n                        newHeight = maxHeight - (0.1 * maxHeight),\n                        scale     = 1 / (Math.min(newHeight / object.getScaledHeight(), newWidth / object.getScaledWidth()));\n\n                    // scale newly uploaded image to the above dimensions\n                    object.scaleX = object.scaleX * (1 / scale);\n                    object.scaleY = object.scaleY * (1 / scale);\n                }\n\n                // center and render newly uploaded image on the canvas\n                this.state.fabric.add(object);\n                object.viewportCenter();\n                object.setCoords();\n                this.render();\n                this.zoom.fitToScreen();\n\n                object.animate('opacity', '1', {\n                    duration: 425,\n                    onChange: () => {\n                        this.render();\n                    },\n                    onComplete: () => {\n                        resolve(object);\n                    }\n                });\n            });\n        });\n    }\n\n    /**\n     * Get main image object, if it exists.\n     */\n    public getMainImage(): FImage {\n        return this.state.fabric.getObjects()\n            .find(obj => obj.name === ObjectNames.mainImage.name) as FImage;\n    }\n\n    /**\n     * Listen to specified canvas event.\n     */\n    public on(eventName: string, handler: (e: IEvent) => void) {\n        this.fabric().on(eventName, handler);\n    }\n}\n","import {Injectable} from '@angular/core';\r\nimport {CanvasPanService} from './canvas-pan.service';\r\nimport {CanvasStateService} from './canvas-state.service';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {Store} from '@ngxs/store';\r\nimport {SetZoom} from '../state/editor-state-actions';\r\n\r\n@Injectable()\r\nexport class CanvasZoomService {\r\n    protected maxZoom = 200;\r\n    protected minZoom = 100;\r\n    protected zoomStep = 5;\r\n    protected currentZoom = 100;\r\n\r\n    constructor(\r\n        private state: CanvasStateService,\r\n        private pan: CanvasPanService,\r\n        private config: Settings,\r\n        private store: Store,\r\n    ) {}\r\n\r\n    public get() {\r\n        return this.currentZoom;\r\n    }\r\n\r\n    public getScaleFactor() {\r\n        return this.state.fabric.getZoom();\r\n    }\r\n\r\n    public zoomIn(amount = this.zoomStep) {\r\n        this.set(this.currentZoom + amount);\r\n    }\r\n\r\n    public canZoomIn(amount = this.zoomStep): boolean {\r\n        return (this.currentZoom + amount) <= this.maxZoom;\r\n    }\r\n\r\n    public canZoomOut(amount = this.zoomStep): boolean {\r\n        return (this.currentZoom - amount) >= this.minZoom;\r\n    }\r\n\r\n    public zoomOut(amount = this.zoomStep) {\r\n        this.set(this.currentZoom - amount);\r\n    }\r\n\r\n    /**\r\n     * Zoom canvas to specified scale.\r\n     */\r\n    public set(zoomPercentage: number, resize: boolean = true) {\r\n        zoomPercentage = Math.trunc(zoomPercentage); // remove any decimals integer might have\r\n        if (zoomPercentage < this.minZoom || zoomPercentage > this.maxZoom) return;\r\n        const fabricZoomFactor = zoomPercentage / 100;\r\n\r\n        const width = this.state.original.width * fabricZoomFactor,\r\n            height = this.state.original.height * fabricZoomFactor;\r\n\r\n        this.state.fabric.setZoom(fabricZoomFactor);\r\n\r\n        if (resize) {\r\n            this.state.fabric.setHeight(height);\r\n            this.state.fabric.setWidth(width);\r\n        }\r\n\r\n        this.currentZoom = zoomPercentage;\r\n        this.store.dispatch(new SetZoom(this.currentZoom));\r\n    }\r\n\r\n    /**\r\n     * Resize canvas to fit available screen space.\r\n     */\r\n    public fitToScreen() {\r\n        if ( ! this.config.get('pixie.tools.zoom.fitImageToScreen')) return;\r\n        const size = this.state.calcWrapperSize();\r\n\r\n        // editor might be closed or open animation has not completed yet\r\n        if ( ! size.width || ! size.height) {\r\n            return;\r\n        }\r\n\r\n        const maxWidth = size.width - 40, maxHeight = size.height - 40;\r\n\r\n        // image won't fit into current space available to canvas\r\n        if (this.state.original.height > maxHeight || this.state.original.width > maxWidth) {\r\n            const scale = Math.min(maxHeight / this.state.original.height, maxWidth / this.state.original.width);\r\n            // no need to allow zooming out beyond maximum size that fits into canvas\r\n            const fittedZoom = Math.trunc(scale * 100);\r\n            // round to nearest zoom step\r\n            this.minZoom = Math.floor(fittedZoom / this.zoomStep) * this.zoomStep;\r\n\r\n        // image will fit, so we can just load it in original size\r\n        } else {\r\n            this.minZoom = 100;\r\n        }\r\n\r\n        if (this.currentZoom !== this.minZoom) {\r\n            this.set(this.minZoom);\r\n        }\r\n    }\r\n\r\n    public init() {\r\n        if ( ! this.config.get('pixie.tools.zoom.allowUserZoom')) return;\r\n        this.bindMouseWheel();\r\n        this.bindToPinchZoom();\r\n    }\r\n\r\n    private bindMouseWheel() {\r\n        this.state.fabric.on('mouse:wheel', opt => {\r\n            opt.e.preventDefault();\r\n            opt.e.stopPropagation();\r\n\r\n            if (opt.e.deltaY < 0) {\r\n                this.zoomIn();\r\n            } else {\r\n                this.zoomOut();\r\n            }\r\n\r\n            this.pan.set();\r\n            this.state.fabric.requestRenderAll();\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Resize canvas when pinch zooming on mobile.\r\n     */\r\n    private bindToPinchZoom() {\r\n        const mc = new Hammer.Manager(this.state.maskWrapperEl);\r\n        const pinch = new Hammer.Pinch();\r\n        mc.add([pinch]);\r\n\r\n        mc.on('pinch', (ev: HammerInput) => {\r\n            const step = Math.abs(ev['overallVelocity']);\r\n\r\n            if (ev['additionalEvent'] === 'pinchout') {\r\n                this.zoomIn(step);\r\n            } else {\r\n                this.zoomOut(step);\r\n            }\r\n\r\n            this.pan.set();\r\n            this.state.fabric.requestRenderAll();\r\n        });\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {CanvasStateService} from './canvas-state.service';\r\n\r\n@Injectable()\r\nexport class CanvasPanService {\r\n    private lastPosX = 0;\r\n    private lastPosY = 0;\r\n    private lastE: MouseEvent|TouchEvent;\r\n    private isDragging  = false;\r\n\r\n    constructor(private state: CanvasStateService) {}\r\n\r\n    public set(e?: MouseEvent|TouchEvent) {\r\n        // use last stored event, if no event is given\r\n        // used for re-adjusting pan during zoom\r\n        if ( ! e) e = this.lastE;\r\n        if ( ! e) return;\r\n\r\n        const wrapper = this.state.calcWrapperSize();\r\n\r\n        const fabricWidth = this.state.fabric.getWidth(),\r\n            fabricHeight = this.state.fabric.getHeight();\r\n\r\n        const coords = this.getClientCoords(e);\r\n\r\n        let left = this.state.fabric.viewportTransform[4] + coords.clientX - this.lastPosX;\r\n        let top = this.state.fabric.viewportTransform[5] + coords.clientY - this.lastPosY;\r\n\r\n        if (left > 0 || wrapper.width > fabricWidth) {\r\n            left = 0;\r\n        } else if (left + Math.floor(fabricWidth) - wrapper.width < 0) {\r\n            left = wrapper.width - Math.floor(fabricWidth);\r\n        }\r\n\r\n        if (top > 0 || wrapper.height > fabricHeight) {\r\n            top = 0;\r\n        } else if (top + Math.floor(fabricHeight) - wrapper.height < 0) {\r\n            top = wrapper.height - Math.floor(fabricHeight);\r\n        }\r\n\r\n        this.state.fabric.viewportTransform[4] = left;\r\n        this.state.fabric.viewportTransform[5] = top;\r\n        this.state.fabric.requestRenderAll();\r\n\r\n        this.lastPosX = coords.clientX;\r\n        this.lastPosY = coords.clientY;\r\n        this.lastE = e;\r\n    }\r\n\r\n    /**\r\n     * Reset canvas pan to original state.\r\n     */\r\n    public reset() {\r\n        this.lastPosX = 0;\r\n        this.lastPosY = 0;\r\n        this.lastE = null;\r\n        this.state.fabric.viewportTransform[4] = 0;\r\n        this.state.fabric.viewportTransform[5] = 0;\r\n    }\r\n\r\n    public init() {\r\n        this.state.fabric.on('mouse:down', opt => {\r\n            // if object is being dragged or draw mode is enabled, bail\r\n            if (opt.target || this.state.fabric.isDrawingMode) {\r\n                return this.isDragging = false;\r\n            }\r\n\r\n            const coords = this.getClientCoords(opt.e);\r\n            this.isDragging = true;\r\n            this.lastPosX = coords.clientX;\r\n            this.lastPosY = coords.clientY;\r\n        });\r\n\r\n        this.state.fabric.on('mouse:move', opt => {\r\n            if (this.isDragging) {\r\n                this.set(opt.e);\r\n            }\r\n        });\r\n\r\n        this.state.fabric.on('mouse:up', () => {\r\n            this.isDragging = false;\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Get client coordinates from touch or mouse event.\r\n     */\r\n    private getClientCoords(e: MouseEvent|TouchEvent) {\r\n        let clientX = 0,\r\n            clientY = 0;\r\n\r\n        e = e as TouchEvent;\r\n\r\n        if (e.touches && e.touches[0]) {\r\n            clientX = e.touches[0].clientX;\r\n            clientY = e.touches[0].clientY;\r\n        } else {\r\n            clientX = e['clientX'];\r\n            clientY = e['clientY'];\r\n        }\r\n\r\n        return {clientX, clientY};\r\n    }\r\n}","import {FormBuilder} from '@angular/forms';\r\n\r\nexport class ActiveObjectForm {\r\n    static build(fb: FormBuilder) {\r\n        return fb.group({\r\n            fill: [],\r\n            backgroundColor: [],\r\n            stroke: [],\r\n            strokeWidth: [],\r\n            opacity: [],\r\n            shadow: fb.group({\r\n                color: [],\r\n                blur: [],\r\n                offsetX: [],\r\n                offsetY: [],\r\n            }),\r\n            textAlign: [],\r\n            underline: [],\r\n            linethrough: [],\r\n            fontStyle: [],\r\n            fontFamily: [],\r\n            fontWeight: [],\r\n        });\r\n    }\r\n}\r\n","import {IObjectOptions, IText, ITextOptions, Object, Shadow} from 'fabric/fabric-impl';\r\nimport {defaultObjectProps} from '../objects/default-object-props';\r\n\r\nexport function getFabricObjectProps(obj: Object) {\r\n    if ( ! obj) return {};\r\n    const shadow = obj.shadow as Shadow;\r\n\r\n    const props = {\r\n        fill: obj.fill,\r\n        opacity: obj.opacity,\r\n        backgroundColor: obj.backgroundColor,\r\n        stroke: obj.stroke,\r\n        strokeWidth: obj.strokeWidth,\r\n    } as ITextOptions;\r\n\r\n    if (shadow) {\r\n        props.shadow = {\r\n            color: shadow.color || defaultObjectProps.shadow.color,\r\n            blur: shadow.blur || defaultObjectProps.shadow.blur,\r\n            offsetX: shadow.offsetX || defaultObjectProps.shadow.offsetX,\r\n            offsetY: shadow.offsetY || defaultObjectProps.shadow.offsetY,\r\n        };\r\n    }\r\n\r\n    if (obj.type === 'i-text') {\r\n        const text = obj as IText;\r\n        props.textAlign = text.textAlign;\r\n        props.underline = text.underline;\r\n        props.linethrough = text.linethrough;\r\n        props.fontStyle = text.fontStyle;\r\n        props.fontFamily = text.fontFamily;\r\n        props.fontWeight = text.fontWeight;\r\n    }\r\n\r\n    return props;\r\n}\r\n","import {Frame} from '../tools/frame/frame';\r\nimport {FontItem} from '../../image-editor-ui/toolbar-controls/widgets/google-fonts-panel/font-item';\r\n\r\nexport interface SerializedCanvas {\r\n    canvas: object|string;\r\n    state?: object|string; // legacy, same as \"canvas\" prop above\r\n    editor: {\r\n        frame: Frame|null,\r\n        fonts: FontItem[]\r\n    };\r\n    canvasWidth: number;\r\n    canvasHeight: number;\r\n}\r\n\r\nexport const DEFAULT_SERIALIZED_EDITOR_STATE = {\r\n    frame: null,\r\n    fonts: [],\r\n};\r\n\r\n","export class HistoryNames {\r\n    static FILTER = {name: 'Applied: filter', icon: 'filter-custom'};\r\n    static RESIZE = {name: 'Applied: resize', icon: 'resize-custom'};\r\n    static CROP = {name: 'Applied: crop', icon: 'crop-custom'};\r\n    static TRANSFORM = {name: 'Applied: transform', icon: 'transform-custom'};\r\n    static DRAW = {name: 'Added: drawing', icon: 'pencil-custom'};\r\n    static TEXT = {name: 'Added: text', icon: 'text-box-custom'};\r\n    static SHAPES = {name: 'Added: shape', icon: 'polygon-custom'};\r\n    static STICKERS = {name: 'Added: sticker', icon: 'sticker-custom'};\r\n    static FRAME = {name: 'Added: frame', icon: 'frame-custom'};\r\n    static MERGE = {name: 'Objects: merged', icon: 'merge-custom'};\r\n    static CORNERS = {name: 'Applied: rounded corners', icon: 'rounded-corners-custom'};\r\n    static BACKGROUND = {name: 'Changed: background', icon: 'background-custom'};\r\n    static BG_IMAGE = {name: 'Changed: background Image', icon: 'photo-library'};\r\n    static OVERLAY_IMAGE = {name: 'Added: overlay Image', icon: 'photo-library'};\r\n    static INITIAL = {name: 'Initial', icon: 'home'};\r\n    static LOADED_STATE = {name: 'Loaded: state', icon: 'history'};\r\n    static OBJECT_STYLE = {name: 'Changed: style', icon: 'color-custom'};\r\n}\r\n","import {IObjectOptions} from 'fabric/fabric-impl';\r\n\r\nexport const staticObjectConfig: IObjectOptions = {\r\n    selectable: false,\r\n    evented: false,\r\n    lockMovementX: true,\r\n    lockMovementY: true,\r\n    lockRotation: true,\r\n    lockScalingX: true,\r\n    lockScalingY: true,\r\n    lockUniScaling: true,\r\n    hasControls: false,\r\n    hasBorders: false,\r\n    hasRotatingPoint: false,\r\n    strokeWidth: 0,\r\n};\r\n","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { Injectable, InjectionToken, Inject, PLATFORM_ID, Injector, NgModule } from '@angular/core';\nimport { of, Observable } from 'rxjs';\nimport { concatMap, filter, map } from 'rxjs/operators';\nimport { DOCUMENT, ɵparseCookieValue } from '@angular/common';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/backend.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Transforms an `HttpRequest` into a stream of `HttpEvent`s, one of which will likely be a\n * `HttpResponse`.\n *\n * `HttpHandler` is injectable. When injected, the handler instance dispatches requests to the\n * first interceptor in the chain, which dispatches to the second, etc, eventually reaching the\n * `HttpBackend`.\n *\n * In an `HttpInterceptor`, the `HttpHandler` parameter is the next interceptor in the chain.\n *\n * \\@publicApi\n * @abstract\n */\nimport * as ɵngcc0 from '@angular/core';\nclass HttpHandler {\n}\nif (false) {\n    /**\n     * @abstract\n     * @param {?} req\n     * @return {?}\n     */\n    HttpHandler.prototype.handle = function (req) { };\n}\n/**\n * A final `HttpHandler` which will dispatch the request via browser HTTP APIs to a backend.\n *\n * Interceptors sit between the `HttpClient` interface and the `HttpBackend`.\n *\n * When injected, `HttpBackend` dispatches requests directly to the backend, without going\n * through the interceptor chain.\n *\n * \\@publicApi\n * @abstract\n */\nclass HttpBackend {\n}\nif (false) {\n    /**\n     * @abstract\n     * @param {?} req\n     * @return {?}\n     */\n    HttpBackend.prototype.handle = function (req) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/headers.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @record\n */\nfunction Update() { }\nif (false) {\n    /** @type {?} */\n    Update.prototype.name;\n    /** @type {?|undefined} */\n    Update.prototype.value;\n    /** @type {?} */\n    Update.prototype.op;\n}\n/**\n * Represents the header configuration options for an HTTP request.\n * Instances are immutable. Modifying methods return a cloned\n * instance with the change. The original object is never changed.\n *\n * \\@publicApi\n */\nclass HttpHeaders {\n    /**\n     * Constructs a new HTTP header object with the given values.\n     * @param {?=} headers\n     */\n    constructor(headers) {\n        /**\n         * Internal map of lowercased header names to the normalized\n         * form of the name (the form seen first).\n         */\n        this.normalizedNames = new Map();\n        /**\n         * Queued updates to be materialized the next initialization.\n         */\n        this.lazyUpdate = null;\n        if (!headers) {\n            this.headers = new Map();\n        }\n        else if (typeof headers === 'string') {\n            this.lazyInit = (/**\n             * @return {?}\n             */\n            () => {\n                this.headers = new Map();\n                headers.split('\\n').forEach((/**\n                 * @param {?} line\n                 * @return {?}\n                 */\n                line => {\n                    /** @type {?} */\n                    const index = line.indexOf(':');\n                    if (index > 0) {\n                        /** @type {?} */\n                        const name = line.slice(0, index);\n                        /** @type {?} */\n                        const key = name.toLowerCase();\n                        /** @type {?} */\n                        const value = line.slice(index + 1).trim();\n                        this.maybeSetNormalizedName(name, key);\n                        if (this.headers.has(key)) {\n                            (/** @type {?} */ (this.headers.get(key))).push(value);\n                        }\n                        else {\n                            this.headers.set(key, [value]);\n                        }\n                    }\n                }));\n            });\n        }\n        else {\n            this.lazyInit = (/**\n             * @return {?}\n             */\n            () => {\n                this.headers = new Map();\n                Object.keys(headers).forEach((/**\n                 * @param {?} name\n                 * @return {?}\n                 */\n                name => {\n                    /** @type {?} */\n                    let values = headers[name];\n                    /** @type {?} */\n                    const key = name.toLowerCase();\n                    if (typeof values === 'string') {\n                        values = [values];\n                    }\n                    if (values.length > 0) {\n                        this.headers.set(key, values);\n                        this.maybeSetNormalizedName(name, key);\n                    }\n                }));\n            });\n        }\n    }\n    /**\n     * Checks for existence of a given header.\n     *\n     * @param {?} name The header name to check for existence.\n     *\n     * @return {?} True if the header exists, false otherwise.\n     */\n    has(name) {\n        this.init();\n        return this.headers.has(name.toLowerCase());\n    }\n    /**\n     * Retrieves the first value of a given header.\n     *\n     * @param {?} name The header name.\n     *\n     * @return {?} The value string if the header exists, null otherwise\n     */\n    get(name) {\n        this.init();\n        /** @type {?} */\n        const values = this.headers.get(name.toLowerCase());\n        return values && values.length > 0 ? values[0] : null;\n    }\n    /**\n     * Retrieves the names of the headers.\n     *\n     * @return {?} A list of header names.\n     */\n    keys() {\n        this.init();\n        return Array.from(this.normalizedNames.values());\n    }\n    /**\n     * Retrieves a list of values for a given header.\n     *\n     * @param {?} name The header name from which to retrieve values.\n     *\n     * @return {?} A string of values if the header exists, null otherwise.\n     */\n    getAll(name) {\n        this.init();\n        return this.headers.get(name.toLowerCase()) || null;\n    }\n    /**\n     * Appends a new value to the existing set of values for a header\n     * and returns them in a clone of the original instance.\n     *\n     * @param {?} name The header name for which to append the values.\n     * @param {?} value The value to append.\n     *\n     * @return {?} A clone of the HTTP headers object with the value appended to the given header.\n     */\n    append(name, value) {\n        return this.clone({ name, value, op: 'a' });\n    }\n    /**\n     * Sets or modifies a value for a given header in a clone of the original instance.\n     * If the header already exists, its value is replaced with the given value\n     * in the returned object.\n     *\n     * @param {?} name The header name.\n     * @param {?} value The value or values to set or overide for the given header.\n     *\n     * @return {?} A clone of the HTTP headers object with the newly set header value.\n     */\n    set(name, value) {\n        return this.clone({ name, value, op: 's' });\n    }\n    /**\n     * Deletes values for a given header in a clone of the original instance.\n     *\n     * @param {?} name The header name.\n     * @param {?=} value The value or values to delete for the given header.\n     *\n     * @return {?} A clone of the HTTP headers object with the given value deleted.\n     */\n    delete(name, value) {\n        return this.clone({ name, value, op: 'd' });\n    }\n    /**\n     * @private\n     * @param {?} name\n     * @param {?} lcName\n     * @return {?}\n     */\n    maybeSetNormalizedName(name, lcName) {\n        if (!this.normalizedNames.has(lcName)) {\n            this.normalizedNames.set(lcName, name);\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    init() {\n        if (!!this.lazyInit) {\n            if (this.lazyInit instanceof HttpHeaders) {\n                this.copyFrom(this.lazyInit);\n            }\n            else {\n                this.lazyInit();\n            }\n            this.lazyInit = null;\n            if (!!this.lazyUpdate) {\n                this.lazyUpdate.forEach((/**\n                 * @param {?} update\n                 * @return {?}\n                 */\n                update => this.applyUpdate(update)));\n                this.lazyUpdate = null;\n            }\n        }\n    }\n    /**\n     * @private\n     * @param {?} other\n     * @return {?}\n     */\n    copyFrom(other) {\n        other.init();\n        Array.from(other.headers.keys()).forEach((/**\n         * @param {?} key\n         * @return {?}\n         */\n        key => {\n            this.headers.set(key, (/** @type {?} */ (other.headers.get(key))));\n            this.normalizedNames.set(key, (/** @type {?} */ (other.normalizedNames.get(key))));\n        }));\n    }\n    /**\n     * @private\n     * @param {?} update\n     * @return {?}\n     */\n    clone(update) {\n        /** @type {?} */\n        const clone = new HttpHeaders();\n        clone.lazyInit =\n            (!!this.lazyInit && this.lazyInit instanceof HttpHeaders) ? this.lazyInit : this;\n        clone.lazyUpdate = (this.lazyUpdate || []).concat([update]);\n        return clone;\n    }\n    /**\n     * @private\n     * @param {?} update\n     * @return {?}\n     */\n    applyUpdate(update) {\n        /** @type {?} */\n        const key = update.name.toLowerCase();\n        switch (update.op) {\n            case 'a':\n            case 's':\n                /** @type {?} */\n                let value = (/** @type {?} */ (update.value));\n                if (typeof value === 'string') {\n                    value = [value];\n                }\n                if (value.length === 0) {\n                    return;\n                }\n                this.maybeSetNormalizedName(update.name, key);\n                /** @type {?} */\n                const base = (update.op === 'a' ? this.headers.get(key) : undefined) || [];\n                base.push(...value);\n                this.headers.set(key, base);\n                break;\n            case 'd':\n                /** @type {?} */\n                const toDelete = (/** @type {?} */ (update.value));\n                if (!toDelete) {\n                    this.headers.delete(key);\n                    this.normalizedNames.delete(key);\n                }\n                else {\n                    /** @type {?} */\n                    let existing = this.headers.get(key);\n                    if (!existing) {\n                        return;\n                    }\n                    existing = existing.filter((/**\n                     * @param {?} value\n                     * @return {?}\n                     */\n                    value => toDelete.indexOf(value) === -1));\n                    if (existing.length === 0) {\n                        this.headers.delete(key);\n                        this.normalizedNames.delete(key);\n                    }\n                    else {\n                        this.headers.set(key, existing);\n                    }\n                }\n                break;\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} fn\n     * @return {?}\n     */\n    forEach(fn) {\n        this.init();\n        Array.from(this.normalizedNames.keys())\n            .forEach((/**\n         * @param {?} key\n         * @return {?}\n         */\n        key => fn((/** @type {?} */ (this.normalizedNames.get(key))), (/** @type {?} */ (this.headers.get(key))))));\n    }\n}\nif (false) {\n    /**\n     * Internal map of lowercase header names to values.\n     * @type {?}\n     * @private\n     */\n    HttpHeaders.prototype.headers;\n    /**\n     * Internal map of lowercased header names to the normalized\n     * form of the name (the form seen first).\n     * @type {?}\n     * @private\n     */\n    HttpHeaders.prototype.normalizedNames;\n    /**\n     * Complete the lazy initialization of this object (needed before reading).\n     * @type {?}\n     * @private\n     */\n    HttpHeaders.prototype.lazyInit;\n    /**\n     * Queued updates to be materialized the next initialization.\n     * @type {?}\n     * @private\n     */\n    HttpHeaders.prototype.lazyUpdate;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/params.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * A codec for encoding and decoding parameters in URLs.\n *\n * Used by `HttpParams`.\n *\n * \\@publicApi\n *\n * @record\n */\nfunction HttpParameterCodec() { }\nif (false) {\n    /**\n     * @param {?} key\n     * @return {?}\n     */\n    HttpParameterCodec.prototype.encodeKey = function (key) { };\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    HttpParameterCodec.prototype.encodeValue = function (value) { };\n    /**\n     * @param {?} key\n     * @return {?}\n     */\n    HttpParameterCodec.prototype.decodeKey = function (key) { };\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    HttpParameterCodec.prototype.decodeValue = function (value) { };\n}\n/**\n * Provides encoding and decoding of URL parameter and query-string values.\n *\n * Serializes and parses URL parameter keys and values to encode and decode them.\n * If you pass URL query parameters without encoding,\n * the query parameters can be misinterpreted at the receiving end.\n *\n *\n * \\@publicApi\n */\nclass HttpUrlEncodingCodec {\n    /**\n     * Encodes a key name for a URL parameter or query-string.\n     * @param {?} key The key name.\n     * @return {?} The encoded key name.\n     */\n    encodeKey(key) {\n        return standardEncoding(key);\n    }\n    /**\n     * Encodes the value of a URL parameter or query-string.\n     * @param {?} value The value.\n     * @return {?} The encoded value.\n     */\n    encodeValue(value) {\n        return standardEncoding(value);\n    }\n    /**\n     * Decodes an encoded URL parameter or query-string key.\n     * @param {?} key The encoded key name.\n     * @return {?} The decoded key name.\n     */\n    decodeKey(key) {\n        return decodeURIComponent(key);\n    }\n    /**\n     * Decodes an encoded URL parameter or query-string value.\n     * @param {?} value The encoded value.\n     * @return {?} The decoded value.\n     */\n    decodeValue(value) {\n        return decodeURIComponent(value);\n    }\n}\n/**\n * @param {?} rawParams\n * @param {?} codec\n * @return {?}\n */\nfunction paramParser(rawParams, codec) {\n    /** @type {?} */\n    const map = new Map();\n    if (rawParams.length > 0) {\n        /** @type {?} */\n        const params = rawParams.split('&');\n        params.forEach((/**\n         * @param {?} param\n         * @return {?}\n         */\n        (param) => {\n            /** @type {?} */\n            const eqIdx = param.indexOf('=');\n            const [key, val] = eqIdx == -1 ?\n                [codec.decodeKey(param), ''] :\n                [codec.decodeKey(param.slice(0, eqIdx)), codec.decodeValue(param.slice(eqIdx + 1))];\n            /** @type {?} */\n            const list = map.get(key) || [];\n            list.push(val);\n            map.set(key, list);\n        }));\n    }\n    return map;\n}\n/**\n * @param {?} v\n * @return {?}\n */\nfunction standardEncoding(v) {\n    return encodeURIComponent(v)\n        .replace(/%40/gi, '@')\n        .replace(/%3A/gi, ':')\n        .replace(/%24/gi, '$')\n        .replace(/%2C/gi, ',')\n        .replace(/%3B/gi, ';')\n        .replace(/%2B/gi, '+')\n        .replace(/%3D/gi, '=')\n        .replace(/%3F/gi, '?')\n        .replace(/%2F/gi, '/');\n}\n/**\n * @record\n */\nfunction Update$1() { }\nif (false) {\n    /** @type {?} */\n    Update$1.prototype.param;\n    /** @type {?|undefined} */\n    Update$1.prototype.value;\n    /** @type {?} */\n    Update$1.prototype.op;\n}\n/**\n * Options used to construct an `HttpParams` instance.\n *\n * \\@publicApi\n * @record\n */\nfunction HttpParamsOptions() { }\nif (false) {\n    /**\n     * String representation of the HTTP parameters in URL-query-string format.\n     * Mutually exclusive with `fromObject`.\n     * @type {?|undefined}\n     */\n    HttpParamsOptions.prototype.fromString;\n    /**\n     * Object map of the HTTP parameters. Mutually exclusive with `fromString`.\n     * @type {?|undefined}\n     */\n    HttpParamsOptions.prototype.fromObject;\n    /**\n     * Encoding codec used to parse and serialize the parameters.\n     * @type {?|undefined}\n     */\n    HttpParamsOptions.prototype.encoder;\n}\n/**\n * An HTTP request/response body that represents serialized parameters,\n * per the MIME type `application/x-www-form-urlencoded`.\n *\n * This class is immutable; all mutation operations return a new instance.\n *\n * \\@publicApi\n */\nclass HttpParams {\n    /**\n     * @param {?=} options\n     */\n    constructor(options = (/** @type {?} */ ({}))) {\n        this.updates = null;\n        this.cloneFrom = null;\n        this.encoder = options.encoder || new HttpUrlEncodingCodec();\n        if (!!options.fromString) {\n            if (!!options.fromObject) {\n                throw new Error(`Cannot specify both fromString and fromObject.`);\n            }\n            this.map = paramParser(options.fromString, this.encoder);\n        }\n        else if (!!options.fromObject) {\n            this.map = new Map();\n            Object.keys(options.fromObject).forEach((/**\n             * @param {?} key\n             * @return {?}\n             */\n            key => {\n                /** @type {?} */\n                const value = ((/** @type {?} */ (options.fromObject)))[key];\n                (/** @type {?} */ (this.map)).set(key, Array.isArray(value) ? value : [value]);\n            }));\n        }\n        else {\n            this.map = null;\n        }\n    }\n    /**\n     * Reports whether the body includes one or more values for a given parameter.\n     * @param {?} param The parameter name.\n     * @return {?} True if the parameter has one or more values,\n     * false if it has no value or is not present.\n     */\n    has(param) {\n        this.init();\n        return (/** @type {?} */ (this.map)).has(param);\n    }\n    /**\n     * Retrieves the first value for a parameter.\n     * @param {?} param The parameter name.\n     * @return {?} The first value of the given parameter,\n     * or `null` if the parameter is not present.\n     */\n    get(param) {\n        this.init();\n        /** @type {?} */\n        const res = (/** @type {?} */ (this.map)).get(param);\n        return !!res ? res[0] : null;\n    }\n    /**\n     * Retrieves all values for a  parameter.\n     * @param {?} param The parameter name.\n     * @return {?} All values in a string array,\n     * or `null` if the parameter not present.\n     */\n    getAll(param) {\n        this.init();\n        return (/** @type {?} */ (this.map)).get(param) || null;\n    }\n    /**\n     * Retrieves all the parameters for this body.\n     * @return {?} The parameter names in a string array.\n     */\n    keys() {\n        this.init();\n        return Array.from((/** @type {?} */ (this.map)).keys());\n    }\n    /**\n     * Appends a new value to existing values for a parameter.\n     * @param {?} param The parameter name.\n     * @param {?} value The new value to add.\n     * @return {?} A new body with the appended value.\n     */\n    append(param, value) {\n        return this.clone({ param, value, op: 'a' });\n    }\n    /**\n     * Replaces the value for a parameter.\n     * @param {?} param The parameter name.\n     * @param {?} value The new value.\n     * @return {?} A new body with the new value.\n     */\n    set(param, value) {\n        return this.clone({ param, value, op: 's' });\n    }\n    /**\n     * Removes a given value or all values from a parameter.\n     * @param {?} param The parameter name.\n     * @param {?=} value The value to remove, if provided.\n     * @return {?} A new body with the given value removed, or with all values\n     * removed if no value is specified.\n     */\n    delete(param, value) {\n        return this.clone({ param, value, op: 'd' });\n    }\n    /**\n     * Serializes the body to an encoded string, where key-value pairs (separated by `=`) are\n     * separated by `&`s.\n     * @return {?}\n     */\n    toString() {\n        this.init();\n        return this.keys()\n            .map((/**\n         * @param {?} key\n         * @return {?}\n         */\n        key => {\n            /** @type {?} */\n            const eKey = this.encoder.encodeKey(key);\n            // `a: ['1']` produces `'a=1'`\n            // `b: []` produces `''`\n            // `c: ['1', '2']` produces `'c=1&c=2'`\n            return (/** @type {?} */ ((/** @type {?} */ (this.map)).get(key))).map((/**\n             * @param {?} value\n             * @return {?}\n             */\n            value => eKey + '=' + this.encoder.encodeValue(value)))\n                .join('&');\n        }))\n            // filter out empty values because `b: []` produces `''`\n            // which results in `a=1&&c=1&c=2` instead of `a=1&c=1&c=2` if we don't\n            .filter((/**\n         * @param {?} param\n         * @return {?}\n         */\n        param => param !== ''))\n            .join('&');\n    }\n    /**\n     * @private\n     * @param {?} update\n     * @return {?}\n     */\n    clone(update) {\n        /** @type {?} */\n        const clone = new HttpParams((/** @type {?} */ ({ encoder: this.encoder })));\n        clone.cloneFrom = this.cloneFrom || this;\n        clone.updates = (this.updates || []).concat([update]);\n        return clone;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    init() {\n        if (this.map === null) {\n            this.map = new Map();\n        }\n        if (this.cloneFrom !== null) {\n            this.cloneFrom.init();\n            this.cloneFrom.keys().forEach((/**\n             * @param {?} key\n             * @return {?}\n             */\n            key => (/** @type {?} */ (this.map)).set(key, (/** @type {?} */ ((/** @type {?} */ ((/** @type {?} */ (this.cloneFrom)).map)).get(key))))));\n            (/** @type {?} */ (this.updates)).forEach((/**\n             * @param {?} update\n             * @return {?}\n             */\n            update => {\n                switch (update.op) {\n                    case 'a':\n                    case 's':\n                        /** @type {?} */\n                        const base = (update.op === 'a' ? (/** @type {?} */ (this.map)).get(update.param) : undefined) || [];\n                        base.push((/** @type {?} */ (update.value)));\n                        (/** @type {?} */ (this.map)).set(update.param, base);\n                        break;\n                    case 'd':\n                        if (update.value !== undefined) {\n                            /** @type {?} */\n                            let base = (/** @type {?} */ (this.map)).get(update.param) || [];\n                            /** @type {?} */\n                            const idx = base.indexOf(update.value);\n                            if (idx !== -1) {\n                                base.splice(idx, 1);\n                            }\n                            if (base.length > 0) {\n                                (/** @type {?} */ (this.map)).set(update.param, base);\n                            }\n                            else {\n                                (/** @type {?} */ (this.map)).delete(update.param);\n                            }\n                        }\n                        else {\n                            (/** @type {?} */ (this.map)).delete(update.param);\n                            break;\n                        }\n                }\n            }));\n            this.cloneFrom = this.updates = null;\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpParams.prototype.map;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpParams.prototype.encoder;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpParams.prototype.updates;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpParams.prototype.cloneFrom;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/request.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Construction interface for `HttpRequest`s.\n *\n * All values are optional and will override default values if provided.\n * @record\n */\nfunction HttpRequestInit() { }\nif (false) {\n    /** @type {?|undefined} */\n    HttpRequestInit.prototype.headers;\n    /** @type {?|undefined} */\n    HttpRequestInit.prototype.reportProgress;\n    /** @type {?|undefined} */\n    HttpRequestInit.prototype.params;\n    /** @type {?|undefined} */\n    HttpRequestInit.prototype.responseType;\n    /** @type {?|undefined} */\n    HttpRequestInit.prototype.withCredentials;\n}\n/**\n * Determine whether the given HTTP method may include a body.\n * @param {?} method\n * @return {?}\n */\nfunction mightHaveBody(method) {\n    switch (method) {\n        case 'DELETE':\n        case 'GET':\n        case 'HEAD':\n        case 'OPTIONS':\n        case 'JSONP':\n            return false;\n        default:\n            return true;\n    }\n}\n/**\n * Safely assert whether the given value is an ArrayBuffer.\n *\n * In some execution environments ArrayBuffer is not defined.\n * @param {?} value\n * @return {?}\n */\nfunction isArrayBuffer(value) {\n    return typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer;\n}\n/**\n * Safely assert whether the given value is a Blob.\n *\n * In some execution environments Blob is not defined.\n * @param {?} value\n * @return {?}\n */\nfunction isBlob(value) {\n    return typeof Blob !== 'undefined' && value instanceof Blob;\n}\n/**\n * Safely assert whether the given value is a FormData instance.\n *\n * In some execution environments FormData is not defined.\n * @param {?} value\n * @return {?}\n */\nfunction isFormData(value) {\n    return typeof FormData !== 'undefined' && value instanceof FormData;\n}\n/**\n * An outgoing HTTP request with an optional typed body.\n *\n * `HttpRequest` represents an outgoing request, including URL, method,\n * headers, body, and other request configuration options. Instances should be\n * assumed to be immutable. To modify a `HttpRequest`, the `clone`\n * method should be used.\n *\n * \\@publicApi\n * @template T\n */\nclass HttpRequest {\n    /**\n     * @param {?} method\n     * @param {?} url\n     * @param {?=} third\n     * @param {?=} fourth\n     */\n    constructor(method, url, third, fourth) {\n        this.url = url;\n        /**\n         * The request body, or `null` if one isn't set.\n         *\n         * Bodies are not enforced to be immutable, as they can include a reference to any\n         * user-defined data type. However, interceptors should take care to preserve\n         * idempotence by treating them as such.\n         */\n        this.body = null;\n        /**\n         * Whether this request should be made in a way that exposes progress events.\n         *\n         * Progress events are expensive (change detection runs on each event) and so\n         * they should only be requested if the consumer intends to monitor them.\n         */\n        this.reportProgress = false;\n        /**\n         * Whether this request should be sent with outgoing credentials (cookies).\n         */\n        this.withCredentials = false;\n        /**\n         * The expected response type of the server.\n         *\n         * This is used to parse the response appropriately before returning it to\n         * the requestee.\n         */\n        this.responseType = 'json';\n        this.method = method.toUpperCase();\n        // Next, need to figure out which argument holds the HttpRequestInit\n        // options, if any.\n        /** @type {?} */\n        let options;\n        // Check whether a body argument is expected. The only valid way to omit\n        // the body argument is to use a known no-body method like GET.\n        if (mightHaveBody(this.method) || !!fourth) {\n            // Body is the third argument, options are the fourth.\n            this.body = (third !== undefined) ? (/** @type {?} */ (third)) : null;\n            options = fourth;\n        }\n        else {\n            // No body required, options are the third argument. The body stays null.\n            options = (/** @type {?} */ (third));\n        }\n        // If options have been passed, interpret them.\n        if (options) {\n            // Normalize reportProgress and withCredentials.\n            this.reportProgress = !!options.reportProgress;\n            this.withCredentials = !!options.withCredentials;\n            // Override default response type of 'json' if one is provided.\n            if (!!options.responseType) {\n                this.responseType = options.responseType;\n            }\n            // Override headers if they're provided.\n            if (!!options.headers) {\n                this.headers = options.headers;\n            }\n            if (!!options.params) {\n                this.params = options.params;\n            }\n        }\n        // If no headers have been passed in, construct a new HttpHeaders instance.\n        if (!this.headers) {\n            this.headers = new HttpHeaders();\n        }\n        // If no parameters have been passed in, construct a new HttpUrlEncodedParams instance.\n        if (!this.params) {\n            this.params = new HttpParams();\n            this.urlWithParams = url;\n        }\n        else {\n            // Encode the parameters to a string in preparation for inclusion in the URL.\n            /** @type {?} */\n            const params = this.params.toString();\n            if (params.length === 0) {\n                // No parameters, the visible URL is just the URL given at creation time.\n                this.urlWithParams = url;\n            }\n            else {\n                // Does the URL already have query parameters? Look for '?'.\n                /** @type {?} */\n                const qIdx = url.indexOf('?');\n                // There are 3 cases to handle:\n                // 1) No existing parameters -> append '?' followed by params.\n                // 2) '?' exists and is followed by existing query string ->\n                //    append '&' followed by params.\n                // 3) '?' exists at the end of the url -> append params directly.\n                // This basically amounts to determining the character, if any, with\n                // which to join the URL and parameters.\n                /** @type {?} */\n                const sep = qIdx === -1 ? '?' : (qIdx < url.length - 1 ? '&' : '');\n                this.urlWithParams = url + sep + params;\n            }\n        }\n    }\n    /**\n     * Transform the free-form body into a serialized format suitable for\n     * transmission to the server.\n     * @return {?}\n     */\n    serializeBody() {\n        // If no body is present, no need to serialize it.\n        if (this.body === null) {\n            return null;\n        }\n        // Check whether the body is already in a serialized form. If so,\n        // it can just be returned directly.\n        if (isArrayBuffer(this.body) || isBlob(this.body) || isFormData(this.body) ||\n            typeof this.body === 'string') {\n            return this.body;\n        }\n        // Check whether the body is an instance of HttpUrlEncodedParams.\n        if (this.body instanceof HttpParams) {\n            return this.body.toString();\n        }\n        // Check whether the body is an object or array, and serialize with JSON if so.\n        if (typeof this.body === 'object' || typeof this.body === 'boolean' ||\n            Array.isArray(this.body)) {\n            return JSON.stringify(this.body);\n        }\n        // Fall back on toString() for everything else.\n        return ((/** @type {?} */ (this.body))).toString();\n    }\n    /**\n     * Examine the body and attempt to infer an appropriate MIME type\n     * for it.\n     *\n     * If no such type can be inferred, this method will return `null`.\n     * @return {?}\n     */\n    detectContentTypeHeader() {\n        // An empty body has no content type.\n        if (this.body === null) {\n            return null;\n        }\n        // FormData bodies rely on the browser's content type assignment.\n        if (isFormData(this.body)) {\n            return null;\n        }\n        // Blobs usually have their own content type. If it doesn't, then\n        // no type can be inferred.\n        if (isBlob(this.body)) {\n            return this.body.type || null;\n        }\n        // Array buffers have unknown contents and thus no type can be inferred.\n        if (isArrayBuffer(this.body)) {\n            return null;\n        }\n        // Technically, strings could be a form of JSON data, but it's safe enough\n        // to assume they're plain strings.\n        if (typeof this.body === 'string') {\n            return 'text/plain';\n        }\n        // `HttpUrlEncodedParams` has its own content-type.\n        if (this.body instanceof HttpParams) {\n            return 'application/x-www-form-urlencoded;charset=UTF-8';\n        }\n        // Arrays, objects, and numbers will be encoded as JSON.\n        if (typeof this.body === 'object' || typeof this.body === 'number' ||\n            Array.isArray(this.body)) {\n            return 'application/json';\n        }\n        // No type could be inferred.\n        return null;\n    }\n    /**\n     * @param {?=} update\n     * @return {?}\n     */\n    clone(update = {}) {\n        // For method, url, and responseType, take the current value unless\n        // it is overridden in the update hash.\n        /** @type {?} */\n        const method = update.method || this.method;\n        /** @type {?} */\n        const url = update.url || this.url;\n        /** @type {?} */\n        const responseType = update.responseType || this.responseType;\n        // The body is somewhat special - a `null` value in update.body means\n        // whatever current body is present is being overridden with an empty\n        // body, whereas an `undefined` value in update.body implies no\n        // override.\n        /** @type {?} */\n        const body = (update.body !== undefined) ? update.body : this.body;\n        // Carefully handle the boolean options to differentiate between\n        // `false` and `undefined` in the update args.\n        /** @type {?} */\n        const withCredentials = (update.withCredentials !== undefined) ? update.withCredentials : this.withCredentials;\n        /** @type {?} */\n        const reportProgress = (update.reportProgress !== undefined) ? update.reportProgress : this.reportProgress;\n        // Headers and params may be appended to if `setHeaders` or\n        // `setParams` are used.\n        /** @type {?} */\n        let headers = update.headers || this.headers;\n        /** @type {?} */\n        let params = update.params || this.params;\n        // Check whether the caller has asked to add headers.\n        if (update.setHeaders !== undefined) {\n            // Set every requested header.\n            headers =\n                Object.keys(update.setHeaders)\n                    .reduce((/**\n                 * @param {?} headers\n                 * @param {?} name\n                 * @return {?}\n                 */\n                (headers, name) => headers.set(name, (/** @type {?} */ (update.setHeaders))[name])), headers);\n        }\n        // Check whether the caller has asked to set params.\n        if (update.setParams) {\n            // Set every requested param.\n            params = Object.keys(update.setParams)\n                .reduce((/**\n             * @param {?} params\n             * @param {?} param\n             * @return {?}\n             */\n            (params, param) => params.set(param, (/** @type {?} */ (update.setParams))[param])), params);\n        }\n        // Finally, construct the new HttpRequest using the pieces from above.\n        return new HttpRequest(method, url, body, {\n            params,\n            headers,\n            reportProgress,\n            responseType,\n            withCredentials,\n        });\n    }\n}\nif (false) {\n    /**\n     * The request body, or `null` if one isn't set.\n     *\n     * Bodies are not enforced to be immutable, as they can include a reference to any\n     * user-defined data type. However, interceptors should take care to preserve\n     * idempotence by treating them as such.\n     * @type {?}\n     */\n    HttpRequest.prototype.body;\n    /**\n     * Outgoing headers for this request.\n     * @type {?}\n     */\n    HttpRequest.prototype.headers;\n    /**\n     * Whether this request should be made in a way that exposes progress events.\n     *\n     * Progress events are expensive (change detection runs on each event) and so\n     * they should only be requested if the consumer intends to monitor them.\n     * @type {?}\n     */\n    HttpRequest.prototype.reportProgress;\n    /**\n     * Whether this request should be sent with outgoing credentials (cookies).\n     * @type {?}\n     */\n    HttpRequest.prototype.withCredentials;\n    /**\n     * The expected response type of the server.\n     *\n     * This is used to parse the response appropriately before returning it to\n     * the requestee.\n     * @type {?}\n     */\n    HttpRequest.prototype.responseType;\n    /**\n     * The outgoing HTTP request method.\n     * @type {?}\n     */\n    HttpRequest.prototype.method;\n    /**\n     * Outgoing URL parameters.\n     * @type {?}\n     */\n    HttpRequest.prototype.params;\n    /**\n     * The outgoing URL with all URL parameters set.\n     * @type {?}\n     */\n    HttpRequest.prototype.urlWithParams;\n    /** @type {?} */\n    HttpRequest.prototype.url;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/response.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @enum {number} */\nconst HttpEventType = {\n    /**\n     * The request was sent out over the wire.\n     */\n    Sent: 0,\n    /**\n     * An upload progress event was received.\n     */\n    UploadProgress: 1,\n    /**\n     * The response status code and headers were received.\n     */\n    ResponseHeader: 2,\n    /**\n     * A download progress event was received.\n     */\n    DownloadProgress: 3,\n    /**\n     * The full response including the body was received.\n     */\n    Response: 4,\n    /**\n     * A custom event from an interceptor or a backend.\n     */\n    User: 5,\n};\nHttpEventType[HttpEventType.Sent] = 'Sent';\nHttpEventType[HttpEventType.UploadProgress] = 'UploadProgress';\nHttpEventType[HttpEventType.ResponseHeader] = 'ResponseHeader';\nHttpEventType[HttpEventType.DownloadProgress] = 'DownloadProgress';\nHttpEventType[HttpEventType.Response] = 'Response';\nHttpEventType[HttpEventType.User] = 'User';\n/**\n * Base interface for progress events.\n *\n * \\@publicApi\n * @record\n */\nfunction HttpProgressEvent() { }\nif (false) {\n    /**\n     * Progress event type is either upload or download.\n     * @type {?}\n     */\n    HttpProgressEvent.prototype.type;\n    /**\n     * Number of bytes uploaded or downloaded.\n     * @type {?}\n     */\n    HttpProgressEvent.prototype.loaded;\n    /**\n     * Total number of bytes to upload or download. Depending on the request or\n     * response, this may not be computable and thus may not be present.\n     * @type {?|undefined}\n     */\n    HttpProgressEvent.prototype.total;\n}\n/**\n * A download progress event.\n *\n * \\@publicApi\n * @record\n */\nfunction HttpDownloadProgressEvent() { }\nif (false) {\n    /** @type {?} */\n    HttpDownloadProgressEvent.prototype.type;\n    /**\n     * The partial response body as downloaded so far.\n     *\n     * Only present if the responseType was `text`.\n     * @type {?|undefined}\n     */\n    HttpDownloadProgressEvent.prototype.partialText;\n}\n/**\n * An upload progress event.\n *\n * \\@publicApi\n * @record\n */\nfunction HttpUploadProgressEvent() { }\nif (false) {\n    /** @type {?} */\n    HttpUploadProgressEvent.prototype.type;\n}\n/**\n * An event indicating that the request was sent to the server. Useful\n * when a request may be retried multiple times, to distinguish between\n * retries on the final event stream.\n *\n * \\@publicApi\n * @record\n */\nfunction HttpSentEvent() { }\nif (false) {\n    /** @type {?} */\n    HttpSentEvent.prototype.type;\n}\n/**\n * A user-defined event.\n *\n * Grouping all custom events under this type ensures they will be handled\n * and forwarded by all implementations of interceptors.\n *\n * \\@publicApi\n * @record\n * @template T\n */\nfunction HttpUserEvent() { }\nif (false) {\n    /** @type {?} */\n    HttpUserEvent.prototype.type;\n}\n/**\n * An error that represents a failed attempt to JSON.parse text coming back\n * from the server.\n *\n * It bundles the Error object with the actual response body that failed to parse.\n *\n *\n * @record\n */\nfunction HttpJsonParseError() { }\nif (false) {\n    /** @type {?} */\n    HttpJsonParseError.prototype.error;\n    /** @type {?} */\n    HttpJsonParseError.prototype.text;\n}\n/**\n * Base class for both `HttpResponse` and `HttpHeaderResponse`.\n *\n * \\@publicApi\n * @abstract\n */\nclass HttpResponseBase {\n    /**\n     * Super-constructor for all responses.\n     *\n     * The single parameter accepted is an initialization hash. Any properties\n     * of the response passed there will override the default values.\n     * @param {?} init\n     * @param {?=} defaultStatus\n     * @param {?=} defaultStatusText\n     */\n    constructor(init, defaultStatus = 200, defaultStatusText = 'OK') {\n        // If the hash has values passed, use them to initialize the response.\n        // Otherwise use the default values.\n        this.headers = init.headers || new HttpHeaders();\n        this.status = init.status !== undefined ? init.status : defaultStatus;\n        this.statusText = init.statusText || defaultStatusText;\n        this.url = init.url || null;\n        // Cache the ok value to avoid defining a getter.\n        this.ok = this.status >= 200 && this.status < 300;\n    }\n}\nif (false) {\n    /**\n     * All response headers.\n     * @type {?}\n     */\n    HttpResponseBase.prototype.headers;\n    /**\n     * Response status code.\n     * @type {?}\n     */\n    HttpResponseBase.prototype.status;\n    /**\n     * Textual description of response status code.\n     *\n     * Do not depend on this.\n     * @type {?}\n     */\n    HttpResponseBase.prototype.statusText;\n    /**\n     * URL of the resource retrieved, or null if not available.\n     * @type {?}\n     */\n    HttpResponseBase.prototype.url;\n    /**\n     * Whether the status code falls in the 2xx range.\n     * @type {?}\n     */\n    HttpResponseBase.prototype.ok;\n    /**\n     * Type of the response, narrowed to either the full response or the header.\n     * @type {?}\n     */\n    HttpResponseBase.prototype.type;\n}\n/**\n * A partial HTTP response which only includes the status and header data,\n * but no response body.\n *\n * `HttpHeaderResponse` is a `HttpEvent` available on the response\n * event stream, only when progress events are requested.\n *\n * \\@publicApi\n */\nclass HttpHeaderResponse extends HttpResponseBase {\n    /**\n     * Create a new `HttpHeaderResponse` with the given parameters.\n     * @param {?=} init\n     */\n    constructor(init = {}) {\n        super(init);\n        this.type = HttpEventType.ResponseHeader;\n    }\n    /**\n     * Copy this `HttpHeaderResponse`, overriding its contents with the\n     * given parameter hash.\n     * @param {?=} update\n     * @return {?}\n     */\n    clone(update = {}) {\n        // Perform a straightforward initialization of the new HttpHeaderResponse,\n        // overriding the current parameters with new ones if given.\n        return new HttpHeaderResponse({\n            headers: update.headers || this.headers,\n            status: update.status !== undefined ? update.status : this.status,\n            statusText: update.statusText || this.statusText,\n            url: update.url || this.url || undefined,\n        });\n    }\n}\nif (false) {\n    /** @type {?} */\n    HttpHeaderResponse.prototype.type;\n}\n/**\n * A full HTTP response, including a typed response body (which may be `null`\n * if one was not returned).\n *\n * `HttpResponse` is a `HttpEvent` available on the response event\n * stream.\n *\n * \\@publicApi\n * @template T\n */\nclass HttpResponse extends HttpResponseBase {\n    /**\n     * Construct a new `HttpResponse`.\n     * @param {?=} init\n     */\n    constructor(init = {}) {\n        super(init);\n        this.type = HttpEventType.Response;\n        this.body = init.body !== undefined ? init.body : null;\n    }\n    /**\n     * @param {?=} update\n     * @return {?}\n     */\n    clone(update = {}) {\n        return new HttpResponse({\n            body: (update.body !== undefined) ? update.body : this.body,\n            headers: update.headers || this.headers,\n            status: (update.status !== undefined) ? update.status : this.status,\n            statusText: update.statusText || this.statusText,\n            url: update.url || this.url || undefined,\n        });\n    }\n}\nif (false) {\n    /**\n     * The response body, or `null` if one was not returned.\n     * @type {?}\n     */\n    HttpResponse.prototype.body;\n    /** @type {?} */\n    HttpResponse.prototype.type;\n}\n/**\n * A response that represents an error or failure, either from a\n * non-successful HTTP status, an error while executing the request,\n * or some other failure which occurred during the parsing of the response.\n *\n * Any error returned on the `Observable` response stream will be\n * wrapped in an `HttpErrorResponse` to provide additional context about\n * the state of the HTTP layer when the error occurred. The error property\n * will contain either a wrapped Error object or the error response returned\n * from the server.\n *\n * \\@publicApi\n */\nclass HttpErrorResponse extends HttpResponseBase {\n    /**\n     * @param {?} init\n     */\n    constructor(init) {\n        // Initialize with a default status of 0 / Unknown Error.\n        super(init, 0, 'Unknown Error');\n        this.name = 'HttpErrorResponse';\n        /**\n         * Errors are never okay, even when the status code is in the 2xx success range.\n         */\n        this.ok = false;\n        // If the response was successful, then this was a parse error. Otherwise, it was\n        // a protocol-level failure of some sort. Either the request failed in transit\n        // or the server returned an unsuccessful status code.\n        if (this.status >= 200 && this.status < 300) {\n            this.message = `Http failure during parsing for ${init.url || '(unknown url)'}`;\n        }\n        else {\n            this.message = `Http failure response for ${init.url || '(unknown url)'}: ${init.status} ${init.statusText}`;\n        }\n        this.error = init.error || null;\n    }\n}\nif (false) {\n    /** @type {?} */\n    HttpErrorResponse.prototype.name;\n    /** @type {?} */\n    HttpErrorResponse.prototype.message;\n    /** @type {?} */\n    HttpErrorResponse.prototype.error;\n    /**\n     * Errors are never okay, even when the status code is in the 2xx success range.\n     * @type {?}\n     */\n    HttpErrorResponse.prototype.ok;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/client.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Constructs an instance of `HttpRequestOptions<T>` from a source `HttpMethodOptions` and\n * the given `body`. This function clones the object and adds the body.\n *\n * Note that the `responseType` *options* value is a String that identifies the\n * single data type of the response.\n * A single overload version of the method handles each response type.\n * The value of `responseType` cannot be a union, as the combined signature could imply.\n *\n * @template T\n * @param {?} options\n * @param {?} body\n * @return {?}\n */\nfunction addBody(options, body) {\n    return {\n        body,\n        headers: options.headers,\n        observe: options.observe,\n        params: options.params,\n        reportProgress: options.reportProgress,\n        responseType: options.responseType,\n        withCredentials: options.withCredentials,\n    };\n}\n/**\n * Performs HTTP requests.\n * This service is available as an injectable class, with methods to perform HTTP requests.\n * Each request method has multiple signatures, and the return type varies based on\n * the signature that is called (mainly the values of `observe` and `responseType`).\n *\n * Note that the `responseType` *options* value is a String that identifies the\n * single data type of the response.\n * A single overload version of the method handles each response type.\n * The value of `responseType` cannot be a union, as the combined signature could imply.\n *\n * \\@usageNotes\n * Sample HTTP requests for the [Tour of Heroes](/tutorial/toh-pt0) application.\n *\n * ### HTTP Request Example\n *\n * ```\n *  // GET heroes whose name contains search term\n * searchHeroes(term: string): observable<Hero[]>{\n *\n *  const params = new HttpParams({fromString: 'name=term'});\n *    return this.httpClient.request('GET', this.heroesUrl, {responseType:'json', params});\n * }\n * ```\n * ### JSONP Example\n * ```\n * requestJsonp(url, callback = 'callback') {\n *  return this.httpClient.jsonp(this.heroesURL, callback);\n * }\n * ```\n *\n * ### PATCH Example\n * ```\n * // PATCH one of the heroes' name\n * patchHero (id: number, heroName: string): Observable<{}> {\n * const url = `${this.heroesUrl}/${id}`;   // PATCH api/heroes/42\n *  return this.httpClient.patch(url, {name: heroName}, httpOptions)\n *    .pipe(catchError(this.handleError('patchHero')));\n * }\n * ```\n *\n * @see [HTTP Guide](guide/http)\n *\n * \\@publicApi\n */\nclass HttpClient {\n    /**\n     * @param {?} handler\n     */\n    constructor(handler) {\n        this.handler = handler;\n    }\n    /**\n     * Constructs an observable for a generic HTTP request that, when subscribed,\n     * fires the request through the chain of registered interceptors and on to the\n     * server.\n     *\n     * You can pass an `HttpRequest` directly as the only parameter. In this case,\n     * the call returns an observable of the raw `HttpEvent` stream.\n     *\n     * Alternatively you can pass an HTTP method as the first parameter,\n     * a URL string as the second, and an options hash containing the request body as the third.\n     * See `addBody()`. In this case, the specified `responseType` and `observe` options determine the\n     * type of returned observable.\n     *   * The `responseType` value determines how a successful response body is parsed.\n     *   * If `responseType` is the default `json`, you can pass a type interface for the resulting\n     * object as a type parameter to the call.\n     *\n     * The `observe` value determines the return type, according to what you are interested in\n     * observing.\n     *   * An `observe` value of events returns an observable of the raw `HttpEvent` stream, including\n     * progress events by default.\n     *   * An `observe` value of response returns an observable of `HttpResponse<T>`,\n     * where the `T` parameter depends on the `responseType` and any optionally provided type\n     * parameter.\n     *   * An `observe` value of body returns an observable of `<T>` with the same `T` body type.\n     *\n     * @param {?} first\n     * @param {?=} url\n     * @param {?=} options\n     * @return {?}\n     */\n    request(first, url, options = {}) {\n        /** @type {?} */\n        let req;\n        // First, check whether the primary argument is an instance of `HttpRequest`.\n        if (first instanceof HttpRequest) {\n            // It is. The other arguments must be undefined (per the signatures) and can be\n            // ignored.\n            req = first;\n        }\n        else {\n            // It's a string, so it represents a URL. Construct a request based on it,\n            // and incorporate the remaining arguments (assuming `GET` unless a method is\n            // provided.\n            // Figure out the headers.\n            /** @type {?} */\n            let headers = undefined;\n            if (options.headers instanceof HttpHeaders) {\n                headers = options.headers;\n            }\n            else {\n                headers = new HttpHeaders(options.headers);\n            }\n            // Sort out parameters.\n            /** @type {?} */\n            let params = undefined;\n            if (!!options.params) {\n                if (options.params instanceof HttpParams) {\n                    params = options.params;\n                }\n                else {\n                    params = new HttpParams((/** @type {?} */ ({ fromObject: options.params })));\n                }\n            }\n            // Construct the request.\n            req = new HttpRequest(first, (/** @type {?} */ (url)), (options.body !== undefined ? options.body : null), {\n                headers,\n                params,\n                reportProgress: options.reportProgress,\n                // By default, JSON is assumed to be returned for all calls.\n                responseType: options.responseType || 'json',\n                withCredentials: options.withCredentials,\n            });\n        }\n        // Start with an Observable.of() the initial request, and run the handler (which\n        // includes all interceptors) inside a concatMap(). This way, the handler runs\n        // inside an Observable chain, which causes interceptors to be re-run on every\n        // subscription (this also makes retries re-run the handler, including interceptors).\n        /** @type {?} */\n        const events$ = of(req).pipe(concatMap((/**\n         * @param {?} req\n         * @return {?}\n         */\n        (req) => this.handler.handle(req))));\n        // If coming via the API signature which accepts a previously constructed HttpRequest,\n        // the only option is to get the event stream. Otherwise, return the event stream if\n        // that is what was requested.\n        if (first instanceof HttpRequest || options.observe === 'events') {\n            return events$;\n        }\n        // The requested stream contains either the full response or the body. In either\n        // case, the first step is to filter the event stream to extract a stream of\n        // responses(s).\n        /** @type {?} */\n        const res$ = (/** @type {?} */ (events$.pipe(filter((/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => event instanceof HttpResponse)))));\n        // Decide which stream to return.\n        switch (options.observe || 'body') {\n            case 'body':\n                // The requested stream is the body. Map the response stream to the response\n                // body. This could be done more simply, but a misbehaving interceptor might\n                // transform the response body into a different format and ignore the requested\n                // responseType. Guard against this by validating that the response is of the\n                // requested type.\n                switch (req.responseType) {\n                    case 'arraybuffer':\n                        return res$.pipe(map((/**\n                         * @param {?} res\n                         * @return {?}\n                         */\n                        (res) => {\n                            // Validate that the body is an ArrayBuffer.\n                            if (res.body !== null && !(res.body instanceof ArrayBuffer)) {\n                                throw new Error('Response is not an ArrayBuffer.');\n                            }\n                            return res.body;\n                        })));\n                    case 'blob':\n                        return res$.pipe(map((/**\n                         * @param {?} res\n                         * @return {?}\n                         */\n                        (res) => {\n                            // Validate that the body is a Blob.\n                            if (res.body !== null && !(res.body instanceof Blob)) {\n                                throw new Error('Response is not a Blob.');\n                            }\n                            return res.body;\n                        })));\n                    case 'text':\n                        return res$.pipe(map((/**\n                         * @param {?} res\n                         * @return {?}\n                         */\n                        (res) => {\n                            // Validate that the body is a string.\n                            if (res.body !== null && typeof res.body !== 'string') {\n                                throw new Error('Response is not a string.');\n                            }\n                            return res.body;\n                        })));\n                    case 'json':\n                    default:\n                        // No validation needed for JSON responses, as they can be of any type.\n                        return res$.pipe(map((/**\n                         * @param {?} res\n                         * @return {?}\n                         */\n                        (res) => res.body)));\n                }\n            case 'response':\n                // The response stream was requested directly, so return it.\n                return res$;\n            default:\n                // Guard against new future observe types being added.\n                throw new Error(`Unreachable: unhandled observe type ${options.observe}}`);\n        }\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `DELETE` request to execute on the server. See the individual overloads for\n     * details on the return type.\n     *\n     * @param {?} url     The endpoint URL.\n     * @param {?=} options The HTTP options to send with the request.\n     *\n     * @return {?}\n     */\n    delete(url, options = {}) {\n        return this.request('DELETE', url, (/** @type {?} */ (options)));\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `GET` request to execute on the server. See the individual overloads for\n     * details on the return type.\n     * @param {?} url\n     * @param {?=} options\n     * @return {?}\n     */\n    get(url, options = {}) {\n        return this.request('GET', url, (/** @type {?} */ (options)));\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `HEAD` request to execute on the server. The `HEAD` method returns\n     * meta information about the resource without transferring the\n     * resource itself. See the individual overloads for\n     * details on the return type.\n     * @param {?} url\n     * @param {?=} options\n     * @return {?}\n     */\n    head(url, options = {}) {\n        return this.request('HEAD', url, (/** @type {?} */ (options)));\n    }\n    /**\n     * Constructs an `Observable` that, when subscribed, causes a request with the special method\n     * `JSONP` to be dispatched via the interceptor pipeline.\n     * The [JSONP pattern](https://en.wikipedia.org/wiki/JSONP) works around limitations of certain\n     * API endpoints that don't support newer,\n     * and preferable [CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) protocol.\n     * JSONP treats the endpoint API as a JavaScript file and tricks the browser to process the\n     * requests even if the API endpoint is not located on the same domain (origin) as the client-side\n     * application making the request.\n     * The endpoint API must support JSONP callback for JSONP requests to work.\n     * The resource API returns the JSON response wrapped in a callback function.\n     * You can pass the callback function name as one of the query parameters.\n     * Note that JSONP requests can only be used with `GET` requests.\n     *\n     * @template T\n     * @param {?} url The resource URL.\n     * @param {?} callbackParam The callback function name.\n     *\n     * @return {?}\n     */\n    jsonp(url, callbackParam) {\n        return this.request('JSONP', url, {\n            params: new HttpParams().append(callbackParam, 'JSONP_CALLBACK'),\n            observe: 'body',\n            responseType: 'json',\n        });\n    }\n    /**\n     * Constructs an `Observable` that, when subscribed, causes the configured\n     * `OPTIONS` request to execute on the server. This method allows the client\n     * to determine the supported HTTP methods and other capabilites of an endpoint,\n     * without implying a resource action. See the individual overloads for\n     * details on the return type.\n     * @param {?} url\n     * @param {?=} options\n     * @return {?}\n     */\n    options(url, options = {}) {\n        return this.request('OPTIONS', url, (/** @type {?} */ (options)));\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `PATCH` request to execute on the server. See the individual overloads for\n     * details on the return type.\n     * @param {?} url\n     * @param {?} body\n     * @param {?=} options\n     * @return {?}\n     */\n    patch(url, body, options = {}) {\n        return this.request('PATCH', url, addBody(options, body));\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `POST` request to execute on the server. The server responds with the location of\n     * the replaced resource. See the individual overloads for\n     * details on the return type.\n     * @param {?} url\n     * @param {?} body\n     * @param {?=} options\n     * @return {?}\n     */\n    post(url, body, options = {}) {\n        return this.request('POST', url, addBody(options, body));\n    }\n    /**\n     * Constructs an observable that, when subscribed, causes the configured\n     * `PUT` request to execute on the server. The `PUT` method replaces an existing resource\n     * with a new set of values.\n     * See the individual overloads for details on the return type.\n     * @param {?} url\n     * @param {?} body\n     * @param {?=} options\n     * @return {?}\n     */\n    put(url, body, options = {}) {\n        return this.request('PUT', url, addBody(options, body));\n    }\n}\nHttpClient.ɵfac = function HttpClient_Factory(t) { return new (t || HttpClient)(ɵngcc0.ɵɵinject(HttpHandler)); };\nHttpClient.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HttpClient, factory: HttpClient.ɵfac });\n/** @nocollapse */\nHttpClient.ctorParameters = () => [\n    { type: HttpHandler }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpClient, [{\n        type: Injectable\n    }], function () { return [{ type: HttpHandler }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpClient.prototype.handler;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/interceptor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Intercepts and handles an `HttpRequest` or `HttpResponse`.\n *\n * Most interceptors transform the outgoing request before passing it to the\n * next interceptor in the chain, by calling `next.handle(transformedReq)`.\n * An interceptor may transform the\n * response event stream as well, by applying additional RxJS operators on the stream\n * returned by `next.handle()`.\n *\n * More rarely, an interceptor may handle the request entirely,\n * and compose a new event stream instead of invoking `next.handle()`. This is an\n * acceptable behavior, but keep in mind that further interceptors will be skipped entirely.\n *\n * It is also rare but valid for an interceptor to return multiple responses on the\n * event stream for a single request.\n *\n * \\@publicApi\n *\n * @see [HTTP Guide](guide/http#intercepting-requests-and-responses)\n *\n * \\@usageNotes\n *\n * To use the same instance of `HttpInterceptors` for the entire app, import the `HttpClientModule`\n * only in your `AppModule`, and add the interceptors to the root application injector .\n * If you import `HttpClientModule` multiple times across different modules (for example, in lazy\n * loading modules), each import creates a new copy of the `HttpClientModule`, which overwrites the\n * interceptors provided in the root module.\n *\n * @record\n */\nfunction HttpInterceptor() { }\nif (false) {\n    /**\n     * Identifies and handles a given HTTP request.\n     * @param {?} req The outgoing request object to handle.\n     * @param {?} next The next interceptor in the chain, or the backend\n     * if no interceptors remain in the chain.\n     * @return {?} An observable of the event stream.\n     */\n    HttpInterceptor.prototype.intercept = function (req, next) { };\n}\n/**\n * `HttpHandler` which applies an `HttpInterceptor` to an `HttpRequest`.\n *\n *\n */\nclass HttpInterceptorHandler {\n    /**\n     * @param {?} next\n     * @param {?} interceptor\n     */\n    constructor(next, interceptor) {\n        this.next = next;\n        this.interceptor = interceptor;\n    }\n    /**\n     * @param {?} req\n     * @return {?}\n     */\n    handle(req) {\n        return this.interceptor.intercept(req, this.next);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpInterceptorHandler.prototype.next;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpInterceptorHandler.prototype.interceptor;\n}\n/**\n * A multi-provider token that represents the array of registered\n * `HttpInterceptor` objects.\n *\n * \\@publicApi\n * @type {?}\n */\nconst HTTP_INTERCEPTORS = new InjectionToken('HTTP_INTERCEPTORS');\nclass NoopInterceptor {\n    /**\n     * @param {?} req\n     * @param {?} next\n     * @return {?}\n     */\n    intercept(req, next) {\n        return next.handle(req);\n    }\n}\nNoopInterceptor.ɵfac = function NoopInterceptor_Factory(t) { return new (t || NoopInterceptor)(); };\nNoopInterceptor.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: NoopInterceptor, factory: NoopInterceptor.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NoopInterceptor, [{\n        type: Injectable\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/jsonp.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Every request made through JSONP needs a callback name that's unique across the\n// whole page. Each request is assigned an id and the callback name is constructed\n// from that. The next id to be assigned is tracked in a global variable here that\n// is shared among all applications on the page.\n/** @type {?} */\nlet nextRequestId = 0;\n// Error text given when a JSONP script is injected, but doesn't invoke the callback\n// passed in its URL.\n/** @type {?} */\nconst JSONP_ERR_NO_CALLBACK = 'JSONP injected script did not invoke callback.';\n// Error text given when a request is passed to the JsonpClientBackend that doesn't\n// have a request method JSONP.\n/** @type {?} */\nconst JSONP_ERR_WRONG_METHOD = 'JSONP requests must use JSONP request method.';\n/** @type {?} */\nconst JSONP_ERR_WRONG_RESPONSE_TYPE = 'JSONP requests must use Json response type.';\n/**\n * DI token/abstract type representing a map of JSONP callbacks.\n *\n * In the browser, this should always be the `window` object.\n *\n *\n * @abstract\n */\nclass JsonpCallbackContext {\n}\n/**\n * Processes an `HttpRequest` with the JSONP method,\n * by performing JSONP style requests.\n * @see `HttpHandler`\n * @see `HttpXhrBackend`\n *\n * \\@publicApi\n */\nclass JsonpClientBackend {\n    /**\n     * @param {?} callbackMap\n     * @param {?} document\n     */\n    constructor(callbackMap, document) {\n        this.callbackMap = callbackMap;\n        this.document = document;\n    }\n    /**\n     * Get the name of the next callback method, by incrementing the global `nextRequestId`.\n     * @private\n     * @return {?}\n     */\n    nextCallback() {\n        return `ng_jsonp_callback_${nextRequestId++}`;\n    }\n    /**\n     * Processes a JSONP request and returns an event stream of the results.\n     * @param {?} req The request object.\n     * @return {?} An observable of the response events.\n     *\n     */\n    handle(req) {\n        // Firstly, check both the method and response type. If either doesn't match\n        // then the request was improperly routed here and cannot be handled.\n        if (req.method !== 'JSONP') {\n            throw new Error(JSONP_ERR_WRONG_METHOD);\n        }\n        else if (req.responseType !== 'json') {\n            throw new Error(JSONP_ERR_WRONG_RESPONSE_TYPE);\n        }\n        // Everything else happens inside the Observable boundary.\n        return new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            // The first step to make a request is to generate the callback name, and replace the\n            // callback placeholder in the URL with the name. Care has to be taken here to ensure\n            // a trailing &, if matched, gets inserted back into the URL in the correct place.\n            /** @type {?} */\n            const callback = this.nextCallback();\n            /** @type {?} */\n            const url = req.urlWithParams.replace(/=JSONP_CALLBACK(&|$)/, `=${callback}$1`);\n            // Construct the <script> tag and point it at the URL.\n            /** @type {?} */\n            const node = this.document.createElement('script');\n            node.src = url;\n            // A JSONP request requires waiting for multiple callbacks. These variables\n            // are closed over and track state across those callbacks.\n            // The response object, if one has been received, or null otherwise.\n            /** @type {?} */\n            let body = null;\n            // Whether the response callback has been called.\n            /** @type {?} */\n            let finished = false;\n            // Whether the request has been cancelled (and thus any other callbacks)\n            // should be ignored.\n            /** @type {?} */\n            let cancelled = false;\n            // Set the response callback in this.callbackMap (which will be the window\n            // object in the browser. The script being loaded via the <script> tag will\n            // eventually call this callback.\n            this.callbackMap[callback] = (/**\n             * @param {?=} data\n             * @return {?}\n             */\n            (data) => {\n                // Data has been received from the JSONP script. Firstly, delete this callback.\n                delete this.callbackMap[callback];\n                // Next, make sure the request wasn't cancelled in the meantime.\n                if (cancelled) {\n                    return;\n                }\n                // Set state to indicate data was received.\n                body = data;\n                finished = true;\n            });\n            // cleanup() is a utility closure that removes the <script> from the page and\n            // the response callback from the window. This logic is used in both the\n            // success, error, and cancellation paths, so it's extracted out for convenience.\n            /** @type {?} */\n            const cleanup = (/**\n             * @return {?}\n             */\n            () => {\n                // Remove the <script> tag if it's still on the page.\n                if (node.parentNode) {\n                    node.parentNode.removeChild(node);\n                }\n                // Remove the response callback from the callbackMap (window object in the\n                // browser).\n                delete this.callbackMap[callback];\n            });\n            // onLoad() is the success callback which runs after the response callback\n            // if the JSONP script loads successfully. The event itself is unimportant.\n            // If something went wrong, onLoad() may run without the response callback\n            // having been invoked.\n            /** @type {?} */\n            const onLoad = (/**\n             * @param {?} event\n             * @return {?}\n             */\n            (event) => {\n                // Do nothing if the request has been cancelled.\n                if (cancelled) {\n                    return;\n                }\n                // Cleanup the page.\n                cleanup();\n                // Check whether the response callback has run.\n                if (!finished) {\n                    // It hasn't, something went wrong with the request. Return an error via\n                    // the Observable error path. All JSONP errors have status 0.\n                    observer.error(new HttpErrorResponse({\n                        url,\n                        status: 0,\n                        statusText: 'JSONP Error',\n                        error: new Error(JSONP_ERR_NO_CALLBACK),\n                    }));\n                    return;\n                }\n                // Success. body either contains the response body or null if none was\n                // returned.\n                observer.next(new HttpResponse({\n                    body,\n                    status: 200,\n                    statusText: 'OK',\n                    url,\n                }));\n                // Complete the stream, the response is over.\n                observer.complete();\n            });\n            // onError() is the error callback, which runs if the script returned generates\n            // a Javascript error. It emits the error via the Observable error channel as\n            // a HttpErrorResponse.\n            /** @type {?} */\n            const onError = (/**\n             * @param {?} error\n             * @return {?}\n             */\n            (error) => {\n                // If the request was already cancelled, no need to emit anything.\n                if (cancelled) {\n                    return;\n                }\n                cleanup();\n                // Wrap the error in a HttpErrorResponse.\n                observer.error(new HttpErrorResponse({\n                    error,\n                    status: 0,\n                    statusText: 'JSONP Error',\n                    url,\n                }));\n            });\n            // Subscribe to both the success (load) and error events on the <script> tag,\n            // and add it to the page.\n            node.addEventListener('load', onLoad);\n            node.addEventListener('error', onError);\n            this.document.body.appendChild(node);\n            // The request has now been successfully sent.\n            observer.next({ type: HttpEventType.Sent });\n            // Cancellation handler.\n            return (/**\n             * @return {?}\n             */\n            () => {\n                // Track the cancellation so event listeners won't do anything even if already scheduled.\n                cancelled = true;\n                // Remove the event listeners so they won't run if the events later fire.\n                node.removeEventListener('load', onLoad);\n                node.removeEventListener('error', onError);\n                // And finally, clean up the page.\n                cleanup();\n            });\n        }));\n    }\n}\nJsonpClientBackend.ɵfac = function JsonpClientBackend_Factory(t) { return new (t || JsonpClientBackend)(ɵngcc0.ɵɵinject(JsonpCallbackContext), ɵngcc0.ɵɵinject(DOCUMENT)); };\nJsonpClientBackend.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: JsonpClientBackend, factory: JsonpClientBackend.ɵfac });\n/** @nocollapse */\nJsonpClientBackend.ctorParameters = () => [\n    { type: JsonpCallbackContext },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(JsonpClientBackend, [{\n        type: Injectable\n    }], function () { return [{ type: JsonpCallbackContext }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    JsonpClientBackend.prototype.callbackMap;\n    /**\n     * @type {?}\n     * @private\n     */\n    JsonpClientBackend.prototype.document;\n}\n/**\n * Identifies requests with the method JSONP and\n * shifts them to the `JsonpClientBackend`.\n *\n * @see `HttpInterceptor`\n *\n * \\@publicApi\n */\nclass JsonpInterceptor {\n    /**\n     * @param {?} jsonp\n     */\n    constructor(jsonp) {\n        this.jsonp = jsonp;\n    }\n    /**\n     * Identifies and handles a given JSONP request.\n     * @param {?} req The outgoing request object to handle.\n     * @param {?} next The next interceptor in the chain, or the backend\n     * if no interceptors remain in the chain.\n     * @return {?} An observable of the event stream.\n     */\n    intercept(req, next) {\n        if (req.method === 'JSONP') {\n            return this.jsonp.handle((/** @type {?} */ (req)));\n        }\n        // Fall through for normal HTTP requests.\n        return next.handle(req);\n    }\n}\nJsonpInterceptor.ɵfac = function JsonpInterceptor_Factory(t) { return new (t || JsonpInterceptor)(ɵngcc0.ɵɵinject(JsonpClientBackend)); };\nJsonpInterceptor.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: JsonpInterceptor, factory: JsonpInterceptor.ɵfac });\n/** @nocollapse */\nJsonpInterceptor.ctorParameters = () => [\n    { type: JsonpClientBackend }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(JsonpInterceptor, [{\n        type: Injectable\n    }], function () { return [{ type: JsonpClientBackend }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    JsonpInterceptor.prototype.jsonp;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/xhr.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst XSSI_PREFIX = /^\\)\\]\\}',?\\n/;\n/**\n * Determine an appropriate URL for the response, by checking either\n * XMLHttpRequest.responseURL or the X-Request-URL header.\n * @param {?} xhr\n * @return {?}\n */\nfunction getResponseUrl(xhr) {\n    if ('responseURL' in xhr && xhr.responseURL) {\n        return xhr.responseURL;\n    }\n    if (/^X-Request-URL:/m.test(xhr.getAllResponseHeaders())) {\n        return xhr.getResponseHeader('X-Request-URL');\n    }\n    return null;\n}\n/**\n * A wrapper around the `XMLHttpRequest` constructor.\n *\n * \\@publicApi\n * @abstract\n */\nclass XhrFactory {\n}\nif (false) {\n    /**\n     * @abstract\n     * @return {?}\n     */\n    XhrFactory.prototype.build = function () { };\n}\n/**\n * A factory for `HttpXhrBackend` that uses the `XMLHttpRequest` browser API.\n *\n */\nclass BrowserXhr {\n    constructor() { }\n    /**\n     * @return {?}\n     */\n    build() {\n        return (/** @type {?} */ ((new XMLHttpRequest())));\n    }\n}\nBrowserXhr.ɵfac = function BrowserXhr_Factory(t) { return new (t || BrowserXhr)(); };\nBrowserXhr.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: BrowserXhr, factory: BrowserXhr.ɵfac });\n/** @nocollapse */\nBrowserXhr.ctorParameters = () => [];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BrowserXhr, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\n/**\n * Tracks a response from the server that does not yet have a body.\n * @record\n */\nfunction PartialResponse() { }\nif (false) {\n    /** @type {?} */\n    PartialResponse.prototype.headers;\n    /** @type {?} */\n    PartialResponse.prototype.status;\n    /** @type {?} */\n    PartialResponse.prototype.statusText;\n    /** @type {?} */\n    PartialResponse.prototype.url;\n}\n/**\n * Uses `XMLHttpRequest` to send requests to a backend server.\n * @see `HttpHandler`\n * @see `JsonpClientBackend`\n *\n * \\@publicApi\n */\nclass HttpXhrBackend {\n    /**\n     * @param {?} xhrFactory\n     */\n    constructor(xhrFactory) {\n        this.xhrFactory = xhrFactory;\n    }\n    /**\n     * Processes a request and returns a stream of response events.\n     * @param {?} req The request object.\n     * @return {?} An observable of the response events.\n     */\n    handle(req) {\n        // Quick check to give a better error message when a user attempts to use\n        // HttpClient.jsonp() without installing the JsonpClientModule\n        if (req.method === 'JSONP') {\n            throw new Error(`Attempted to construct Jsonp request without JsonpClientModule installed.`);\n        }\n        // Everything happens on Observable subscription.\n        return new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            // Start by setting up the XHR object with request method, URL, and withCredentials flag.\n            /** @type {?} */\n            const xhr = this.xhrFactory.build();\n            xhr.open(req.method, req.urlWithParams);\n            if (!!req.withCredentials) {\n                xhr.withCredentials = true;\n            }\n            // Add all the requested headers.\n            req.headers.forEach((/**\n             * @param {?} name\n             * @param {?} values\n             * @return {?}\n             */\n            (name, values) => xhr.setRequestHeader(name, values.join(','))));\n            // Add an Accept header if one isn't present already.\n            if (!req.headers.has('Accept')) {\n                xhr.setRequestHeader('Accept', 'application/json, text/plain, */*');\n            }\n            // Auto-detect the Content-Type header if one isn't present already.\n            if (!req.headers.has('Content-Type')) {\n                /** @type {?} */\n                const detectedType = req.detectContentTypeHeader();\n                // Sometimes Content-Type detection fails.\n                if (detectedType !== null) {\n                    xhr.setRequestHeader('Content-Type', detectedType);\n                }\n            }\n            // Set the responseType if one was requested.\n            if (req.responseType) {\n                /** @type {?} */\n                const responseType = req.responseType.toLowerCase();\n                // JSON responses need to be processed as text. This is because if the server\n                // returns an XSSI-prefixed JSON response, the browser will fail to parse it,\n                // xhr.response will be null, and xhr.responseText cannot be accessed to\n                // retrieve the prefixed JSON data in order to strip the prefix. Thus, all JSON\n                // is parsed by first requesting text and then applying JSON.parse.\n                xhr.responseType = (/** @type {?} */ (((responseType !== 'json') ? responseType : 'text')));\n            }\n            // Serialize the request body if one is present. If not, this will be set to null.\n            /** @type {?} */\n            const reqBody = req.serializeBody();\n            // If progress events are enabled, response headers will be delivered\n            // in two events - the HttpHeaderResponse event and the full HttpResponse\n            // event. However, since response headers don't change in between these\n            // two events, it doesn't make sense to parse them twice. So headerResponse\n            // caches the data extracted from the response whenever it's first parsed,\n            // to ensure parsing isn't duplicated.\n            /** @type {?} */\n            let headerResponse = null;\n            // partialFromXhr extracts the HttpHeaderResponse from the current XMLHttpRequest\n            // state, and memoizes it into headerResponse.\n            /** @type {?} */\n            const partialFromXhr = (/**\n             * @return {?}\n             */\n            () => {\n                if (headerResponse !== null) {\n                    return headerResponse;\n                }\n                // Read status and normalize an IE9 bug (http://bugs.jquery.com/ticket/1450).\n                /** @type {?} */\n                const status = xhr.status === 1223 ? 204 : xhr.status;\n                /** @type {?} */\n                const statusText = xhr.statusText || 'OK';\n                // Parse headers from XMLHttpRequest - this step is lazy.\n                /** @type {?} */\n                const headers = new HttpHeaders(xhr.getAllResponseHeaders());\n                // Read the response URL from the XMLHttpResponse instance and fall back on the\n                // request URL.\n                /** @type {?} */\n                const url = getResponseUrl(xhr) || req.url;\n                // Construct the HttpHeaderResponse and memoize it.\n                headerResponse = new HttpHeaderResponse({ headers, status, statusText, url });\n                return headerResponse;\n            });\n            // Next, a few closures are defined for the various events which XMLHttpRequest can\n            // emit. This allows them to be unregistered as event listeners later.\n            // First up is the load event, which represents a response being fully available.\n            /** @type {?} */\n            const onLoad = (/**\n             * @return {?}\n             */\n            () => {\n                // Read response state from the memoized partial data.\n                let { headers, status, statusText, url } = partialFromXhr();\n                // The body will be read out if present.\n                /** @type {?} */\n                let body = null;\n                if (status !== 204) {\n                    // Use XMLHttpRequest.response if set, responseText otherwise.\n                    body = (typeof xhr.response === 'undefined') ? xhr.responseText : xhr.response;\n                }\n                // Normalize another potential bug (this one comes from CORS).\n                if (status === 0) {\n                    status = !!body ? 200 : 0;\n                }\n                // ok determines whether the response will be transmitted on the event or\n                // error channel. Unsuccessful status codes (not 2xx) will always be errors,\n                // but a successful status code can still result in an error if the user\n                // asked for JSON data and the body cannot be parsed as such.\n                /** @type {?} */\n                let ok = status >= 200 && status < 300;\n                // Check whether the body needs to be parsed as JSON (in many cases the browser\n                // will have done that already).\n                if (req.responseType === 'json' && typeof body === 'string') {\n                    // Save the original body, before attempting XSSI prefix stripping.\n                    /** @type {?} */\n                    const originalBody = body;\n                    body = body.replace(XSSI_PREFIX, '');\n                    try {\n                        // Attempt the parse. If it fails, a parse error should be delivered to the user.\n                        body = body !== '' ? JSON.parse(body) : null;\n                    }\n                    catch (error) {\n                        // Since the JSON.parse failed, it's reasonable to assume this might not have been a\n                        // JSON response. Restore the original body (including any XSSI prefix) to deliver\n                        // a better error response.\n                        body = originalBody;\n                        // If this was an error request to begin with, leave it as a string, it probably\n                        // just isn't JSON. Otherwise, deliver the parsing error to the user.\n                        if (ok) {\n                            // Even though the response status was 2xx, this is still an error.\n                            ok = false;\n                            // The parse error contains the text of the body that failed to parse.\n                            body = (/** @type {?} */ ({ error, text: body }));\n                        }\n                    }\n                }\n                if (ok) {\n                    // A successful response is delivered on the event stream.\n                    observer.next(new HttpResponse({\n                        body,\n                        headers,\n                        status,\n                        statusText,\n                        url: url || undefined,\n                    }));\n                    // The full body has been received and delivered, no further events\n                    // are possible. This request is complete.\n                    observer.complete();\n                }\n                else {\n                    // An unsuccessful request is delivered on the error channel.\n                    observer.error(new HttpErrorResponse({\n                        // The error in this case is the response body (error from the server).\n                        error: body,\n                        headers,\n                        status,\n                        statusText,\n                        url: url || undefined,\n                    }));\n                }\n            });\n            // The onError callback is called when something goes wrong at the network level.\n            // Connection timeout, DNS error, offline, etc. These are actual errors, and are\n            // transmitted on the error channel.\n            /** @type {?} */\n            const onError = (/**\n             * @param {?} error\n             * @return {?}\n             */\n            (error) => {\n                const { url } = partialFromXhr();\n                /** @type {?} */\n                const res = new HttpErrorResponse({\n                    error,\n                    status: xhr.status || 0,\n                    statusText: xhr.statusText || 'Unknown Error',\n                    url: url || undefined,\n                });\n                observer.error(res);\n            });\n            // The sentHeaders flag tracks whether the HttpResponseHeaders event\n            // has been sent on the stream. This is necessary to track if progress\n            // is enabled since the event will be sent on only the first download\n            // progerss event.\n            /** @type {?} */\n            let sentHeaders = false;\n            // The download progress event handler, which is only registered if\n            // progress events are enabled.\n            /** @type {?} */\n            const onDownProgress = (/**\n             * @param {?} event\n             * @return {?}\n             */\n            (event) => {\n                // Send the HttpResponseHeaders event if it hasn't been sent already.\n                if (!sentHeaders) {\n                    observer.next(partialFromXhr());\n                    sentHeaders = true;\n                }\n                // Start building the download progress event to deliver on the response\n                // event stream.\n                /** @type {?} */\n                let progressEvent = {\n                    type: HttpEventType.DownloadProgress,\n                    loaded: event.loaded,\n                };\n                // Set the total number of bytes in the event if it's available.\n                if (event.lengthComputable) {\n                    progressEvent.total = event.total;\n                }\n                // If the request was for text content and a partial response is\n                // available on XMLHttpRequest, include it in the progress event\n                // to allow for streaming reads.\n                if (req.responseType === 'text' && !!xhr.responseText) {\n                    progressEvent.partialText = xhr.responseText;\n                }\n                // Finally, fire the event.\n                observer.next(progressEvent);\n            });\n            // The upload progress event handler, which is only registered if\n            // progress events are enabled.\n            /** @type {?} */\n            const onUpProgress = (/**\n             * @param {?} event\n             * @return {?}\n             */\n            (event) => {\n                // Upload progress events are simpler. Begin building the progress\n                // event.\n                /** @type {?} */\n                let progress = {\n                    type: HttpEventType.UploadProgress,\n                    loaded: event.loaded,\n                };\n                // If the total number of bytes being uploaded is available, include\n                // it.\n                if (event.lengthComputable) {\n                    progress.total = event.total;\n                }\n                // Send the event.\n                observer.next(progress);\n            });\n            // By default, register for load and error events.\n            xhr.addEventListener('load', onLoad);\n            xhr.addEventListener('error', onError);\n            // Progress events are only enabled if requested.\n            if (req.reportProgress) {\n                // Download progress is always enabled if requested.\n                xhr.addEventListener('progress', onDownProgress);\n                // Upload progress depends on whether there is a body to upload.\n                if (reqBody !== null && xhr.upload) {\n                    xhr.upload.addEventListener('progress', onUpProgress);\n                }\n            }\n            // Fire the request, and notify the event stream that it was fired.\n            xhr.send((/** @type {?} */ (reqBody)));\n            observer.next({ type: HttpEventType.Sent });\n            // This is the return from the Observable function, which is the\n            // request cancellation handler.\n            return (/**\n             * @return {?}\n             */\n            () => {\n                // On a cancellation, remove all registered event listeners.\n                xhr.removeEventListener('error', onError);\n                xhr.removeEventListener('load', onLoad);\n                if (req.reportProgress) {\n                    xhr.removeEventListener('progress', onDownProgress);\n                    if (reqBody !== null && xhr.upload) {\n                        xhr.upload.removeEventListener('progress', onUpProgress);\n                    }\n                }\n                // Finally, abort the in-flight request.\n                xhr.abort();\n            });\n        }));\n    }\n}\nHttpXhrBackend.ɵfac = function HttpXhrBackend_Factory(t) { return new (t || HttpXhrBackend)(ɵngcc0.ɵɵinject(XhrFactory)); };\nHttpXhrBackend.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HttpXhrBackend, factory: HttpXhrBackend.ɵfac });\n/** @nocollapse */\nHttpXhrBackend.ctorParameters = () => [\n    { type: XhrFactory }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpXhrBackend, [{\n        type: Injectable\n    }], function () { return [{ type: XhrFactory }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXhrBackend.prototype.xhrFactory;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/xsrf.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst XSRF_COOKIE_NAME = new InjectionToken('XSRF_COOKIE_NAME');\n/** @type {?} */\nconst XSRF_HEADER_NAME = new InjectionToken('XSRF_HEADER_NAME');\n/**\n * Retrieves the current XSRF token to use with the next outgoing request.\n *\n * \\@publicApi\n * @abstract\n */\nclass HttpXsrfTokenExtractor {\n}\nif (false) {\n    /**\n     * Get the XSRF token to use with an outgoing request.\n     *\n     * Will be called for every request, so the token may change between requests.\n     * @abstract\n     * @return {?}\n     */\n    HttpXsrfTokenExtractor.prototype.getToken = function () { };\n}\n/**\n * `HttpXsrfTokenExtractor` which retrieves the token from a cookie.\n */\nclass HttpXsrfCookieExtractor {\n    /**\n     * @param {?} doc\n     * @param {?} platform\n     * @param {?} cookieName\n     */\n    constructor(doc, platform, cookieName) {\n        this.doc = doc;\n        this.platform = platform;\n        this.cookieName = cookieName;\n        this.lastCookieString = '';\n        this.lastToken = null;\n        /**\n         * \\@internal for testing\n         */\n        this.parseCount = 0;\n    }\n    /**\n     * @return {?}\n     */\n    getToken() {\n        if (this.platform === 'server') {\n            return null;\n        }\n        /** @type {?} */\n        const cookieString = this.doc.cookie || '';\n        if (cookieString !== this.lastCookieString) {\n            this.parseCount++;\n            this.lastToken = ɵparseCookieValue(cookieString, this.cookieName);\n            this.lastCookieString = cookieString;\n        }\n        return this.lastToken;\n    }\n}\nHttpXsrfCookieExtractor.ɵfac = function HttpXsrfCookieExtractor_Factory(t) { return new (t || HttpXsrfCookieExtractor)(ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(PLATFORM_ID), ɵngcc0.ɵɵinject(XSRF_COOKIE_NAME)); };\nHttpXsrfCookieExtractor.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HttpXsrfCookieExtractor, factory: HttpXsrfCookieExtractor.ɵfac });\n/** @nocollapse */\nHttpXsrfCookieExtractor.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: String, decorators: [{ type: Inject, args: [PLATFORM_ID,] }] },\n    { type: String, decorators: [{ type: Inject, args: [XSRF_COOKIE_NAME,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpXsrfCookieExtractor, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: String, decorators: [{\n                type: Inject,\n                args: [PLATFORM_ID]\n            }] }, { type: String, decorators: [{\n                type: Inject,\n                args: [XSRF_COOKIE_NAME]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXsrfCookieExtractor.prototype.lastCookieString;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXsrfCookieExtractor.prototype.lastToken;\n    /**\n     * \\@internal for testing\n     * @type {?}\n     */\n    HttpXsrfCookieExtractor.prototype.parseCount;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXsrfCookieExtractor.prototype.doc;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXsrfCookieExtractor.prototype.platform;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXsrfCookieExtractor.prototype.cookieName;\n}\n/**\n * `HttpInterceptor` which adds an XSRF token to eligible outgoing requests.\n */\nclass HttpXsrfInterceptor {\n    /**\n     * @param {?} tokenService\n     * @param {?} headerName\n     */\n    constructor(tokenService, headerName) {\n        this.tokenService = tokenService;\n        this.headerName = headerName;\n    }\n    /**\n     * @param {?} req\n     * @param {?} next\n     * @return {?}\n     */\n    intercept(req, next) {\n        /** @type {?} */\n        const lcUrl = req.url.toLowerCase();\n        // Skip both non-mutating requests and absolute URLs.\n        // Non-mutating requests don't require a token, and absolute URLs require special handling\n        // anyway as the cookie set\n        // on our origin is not the same as the token expected by another origin.\n        if (req.method === 'GET' || req.method === 'HEAD' || lcUrl.startsWith('http://') ||\n            lcUrl.startsWith('https://')) {\n            return next.handle(req);\n        }\n        /** @type {?} */\n        const token = this.tokenService.getToken();\n        // Be careful not to overwrite an existing header of the same name.\n        if (token !== null && !req.headers.has(this.headerName)) {\n            req = req.clone({ headers: req.headers.set(this.headerName, token) });\n        }\n        return next.handle(req);\n    }\n}\nHttpXsrfInterceptor.ɵfac = function HttpXsrfInterceptor_Factory(t) { return new (t || HttpXsrfInterceptor)(ɵngcc0.ɵɵinject(HttpXsrfTokenExtractor), ɵngcc0.ɵɵinject(XSRF_HEADER_NAME)); };\nHttpXsrfInterceptor.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HttpXsrfInterceptor, factory: HttpXsrfInterceptor.ɵfac });\n/** @nocollapse */\nHttpXsrfInterceptor.ctorParameters = () => [\n    { type: HttpXsrfTokenExtractor },\n    { type: String, decorators: [{ type: Inject, args: [XSRF_HEADER_NAME,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpXsrfInterceptor, [{\n        type: Injectable\n    }], function () { return [{ type: HttpXsrfTokenExtractor }, { type: String, decorators: [{\n                type: Inject,\n                args: [XSRF_HEADER_NAME]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXsrfInterceptor.prototype.tokenService;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpXsrfInterceptor.prototype.headerName;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/src/module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An injectable `HttpHandler` that applies multiple interceptors\n * to a request before passing it to the given `HttpBackend`.\n *\n * The interceptors are loaded lazily from the injector, to allow\n * interceptors to themselves inject classes depending indirectly\n * on `HttpInterceptingHandler` itself.\n * @see `HttpInterceptor`\n */\nclass HttpInterceptingHandler {\n    /**\n     * @param {?} backend\n     * @param {?} injector\n     */\n    constructor(backend, injector) {\n        this.backend = backend;\n        this.injector = injector;\n        this.chain = null;\n    }\n    /**\n     * @param {?} req\n     * @return {?}\n     */\n    handle(req) {\n        if (this.chain === null) {\n            /** @type {?} */\n            const interceptors = this.injector.get(HTTP_INTERCEPTORS, []);\n            this.chain = interceptors.reduceRight((/**\n             * @param {?} next\n             * @param {?} interceptor\n             * @return {?}\n             */\n            (next, interceptor) => new HttpInterceptorHandler(next, interceptor)), this.backend);\n        }\n        return this.chain.handle(req);\n    }\n}\nHttpInterceptingHandler.ɵfac = function HttpInterceptingHandler_Factory(t) { return new (t || HttpInterceptingHandler)(ɵngcc0.ɵɵinject(HttpBackend), ɵngcc0.ɵɵinject(ɵngcc0.Injector)); };\nHttpInterceptingHandler.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HttpInterceptingHandler, factory: HttpInterceptingHandler.ɵfac });\n/** @nocollapse */\nHttpInterceptingHandler.ctorParameters = () => [\n    { type: HttpBackend },\n    { type: Injector }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpInterceptingHandler, [{\n        type: Injectable\n    }], function () { return [{ type: HttpBackend }, { type: ɵngcc0.Injector }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpInterceptingHandler.prototype.chain;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpInterceptingHandler.prototype.backend;\n    /**\n     * @type {?}\n     * @private\n     */\n    HttpInterceptingHandler.prototype.injector;\n}\n/**\n * Constructs an `HttpHandler` that applies interceptors\n * to a request before passing it to the given `HttpBackend`.\n *\n * Use as a factory function within `HttpClientModule`.\n *\n *\n * @param {?} backend\n * @param {?=} interceptors\n * @return {?}\n */\nfunction interceptingHandler(backend, interceptors = []) {\n    if (!interceptors) {\n        return backend;\n    }\n    return interceptors.reduceRight((/**\n     * @param {?} next\n     * @param {?} interceptor\n     * @return {?}\n     */\n    (next, interceptor) => new HttpInterceptorHandler(next, interceptor)), backend);\n}\n/**\n * Factory function that determines where to store JSONP callbacks.\n *\n * Ordinarily JSONP callbacks are stored on the `window` object, but this may not exist\n * in test environments. In that case, callbacks are stored on an anonymous object instead.\n *\n *\n * @return {?}\n */\nfunction jsonpCallbackContext() {\n    if (typeof window === 'object') {\n        return window;\n    }\n    return {};\n}\n/**\n * Configures XSRF protection support for outgoing requests.\n *\n * For a server that supports a cookie-based XSRF protection system,\n * use directly to configure XSRF protection with the correct\n * cookie and header names.\n *\n * If no names are supplied, the default cookie name is `XSRF-TOKEN`\n * and the default header name is `X-XSRF-TOKEN`.\n *\n * \\@publicApi\n */\nclass HttpClientXsrfModule {\n    /**\n     * Disable the default XSRF protection.\n     * @return {?}\n     */\n    static disable() {\n        return {\n            ngModule: HttpClientXsrfModule,\n            providers: [\n                { provide: HttpXsrfInterceptor, useClass: NoopInterceptor },\n            ],\n        };\n    }\n    /**\n     * Configure XSRF protection.\n     * @param {?=} options An object that can specify either or both\n     * cookie name or header name.\n     * - Cookie name default is `XSRF-TOKEN`.\n     * - Header name default is `X-XSRF-TOKEN`.\n     *\n     * @return {?}\n     */\n    static withOptions(options = {}) {\n        return {\n            ngModule: HttpClientXsrfModule,\n            providers: [\n                options.cookieName ? { provide: XSRF_COOKIE_NAME, useValue: options.cookieName } : [],\n                options.headerName ? { provide: XSRF_HEADER_NAME, useValue: options.headerName } : [],\n            ],\n        };\n    }\n}\nHttpClientXsrfModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: HttpClientXsrfModule });\nHttpClientXsrfModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function HttpClientXsrfModule_Factory(t) { return new (t || HttpClientXsrfModule)(); }, providers: [\n        HttpXsrfInterceptor,\n        { provide: HTTP_INTERCEPTORS, useExisting: HttpXsrfInterceptor, multi: true },\n        { provide: HttpXsrfTokenExtractor, useClass: HttpXsrfCookieExtractor },\n        { provide: XSRF_COOKIE_NAME, useValue: 'XSRF-TOKEN' },\n        { provide: XSRF_HEADER_NAME, useValue: 'X-XSRF-TOKEN' },\n    ] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpClientXsrfModule, [{\n        type: NgModule,\n        args: [{\n                providers: [\n                    HttpXsrfInterceptor,\n                    { provide: HTTP_INTERCEPTORS, useExisting: HttpXsrfInterceptor, multi: true },\n                    { provide: HttpXsrfTokenExtractor, useClass: HttpXsrfCookieExtractor },\n                    { provide: XSRF_COOKIE_NAME, useValue: 'XSRF-TOKEN' },\n                    { provide: XSRF_HEADER_NAME, useValue: 'X-XSRF-TOKEN' },\n                ]\n            }]\n    }], null, null); })();\n/**\n * Configures the [dependency injector](guide/glossary#injector) for `HttpClient`\n * with supporting services for XSRF. Automatically imported by `HttpClientModule`.\n *\n * You can add interceptors to the chain behind `HttpClient` by binding them to the\n * multiprovider for built-in [DI token](guide/glossary#di-token) `HTTP_INTERCEPTORS`.\n *\n * \\@publicApi\n */\nclass HttpClientModule {\n}\nHttpClientModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: HttpClientModule });\nHttpClientModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function HttpClientModule_Factory(t) { return new (t || HttpClientModule)(); }, providers: [\n        HttpClient,\n        { provide: HttpHandler, useClass: HttpInterceptingHandler },\n        HttpXhrBackend,\n        { provide: HttpBackend, useExisting: HttpXhrBackend },\n        BrowserXhr,\n        { provide: XhrFactory, useExisting: BrowserXhr },\n    ], imports: [[\n            HttpClientXsrfModule.withOptions({\n                cookieName: 'XSRF-TOKEN',\n                headerName: 'X-XSRF-TOKEN'\n            }),\n        ]] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(HttpClientModule, { imports: [HttpClientXsrfModule] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpClientModule, [{\n        type: NgModule,\n        args: [{\n                /**\n                 * Optional configuration for XSRF protection.\n                 */\n                imports: [\n                    HttpClientXsrfModule.withOptions({\n                        cookieName: 'XSRF-TOKEN',\n                        headerName: 'X-XSRF-TOKEN'\n                    }),\n                ],\n                /**\n                 * Configures the [dependency injector](guide/glossary#injector) where it is imported\n                 * with supporting services for HTTP communications.\n                 */\n                providers: [\n                    HttpClient,\n                    { provide: HttpHandler, useClass: HttpInterceptingHandler },\n                    HttpXhrBackend,\n                    { provide: HttpBackend, useExisting: HttpXhrBackend },\n                    BrowserXhr,\n                    { provide: XhrFactory, useExisting: BrowserXhr },\n                ]\n            }]\n    }], null, null); })();\n/**\n * Configures the [dependency injector](guide/glossary#injector) for `HttpClient`\n * with supporting services for JSONP.\n * Without this module, Jsonp requests reach the backend\n * with method JSONP, where they are rejected.\n *\n * You can add interceptors to the chain behind `HttpClient` by binding them to the\n * multiprovider for built-in [DI token](guide/glossary#di-token) `HTTP_INTERCEPTORS`.\n *\n * \\@publicApi\n */\nclass HttpClientJsonpModule {\n}\nHttpClientJsonpModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: HttpClientJsonpModule });\nHttpClientJsonpModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function HttpClientJsonpModule_Factory(t) { return new (t || HttpClientJsonpModule)(); }, providers: [\n        JsonpClientBackend,\n        { provide: JsonpCallbackContext, useFactory: jsonpCallbackContext },\n        { provide: HTTP_INTERCEPTORS, useClass: JsonpInterceptor, multi: true },\n    ] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HttpClientJsonpModule, [{\n        type: NgModule,\n        args: [{\n                providers: [\n                    JsonpClientBackend,\n                    { provide: JsonpCallbackContext, useFactory: jsonpCallbackContext },\n                    { provide: HTTP_INTERCEPTORS, useClass: JsonpInterceptor, multi: true },\n                ]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/common/http/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { HTTP_INTERCEPTORS, HttpBackend, HttpClient, HttpClientJsonpModule, HttpClientModule, HttpClientXsrfModule, HttpErrorResponse, HttpEventType, HttpHandler, HttpHeaderResponse, HttpHeaders, HttpParams, HttpRequest, HttpResponse, HttpResponseBase, HttpUrlEncodingCodec, HttpXhrBackend, HttpXsrfTokenExtractor, JsonpClientBackend, JsonpInterceptor, XhrFactory, HttpInterceptingHandler as ɵHttpInterceptingHandler, NoopInterceptor as ɵangular_packages_common_http_http_a, JsonpCallbackContext as ɵangular_packages_common_http_http_b, jsonpCallbackContext as ɵangular_packages_common_http_http_c, BrowserXhr as ɵangular_packages_common_http_http_d, XSRF_COOKIE_NAME as ɵangular_packages_common_http_http_e, XSRF_HEADER_NAME as ɵangular_packages_common_http_http_f, HttpXsrfCookieExtractor as ɵangular_packages_common_http_http_g, HttpXsrfInterceptor as ɵangular_packages_common_http_http_h };\n\n//# sourceMappingURL=http.js.map","import { EventEmitter, Injectable } from '@angular/core';\r\nimport { Localization } from '../types/models/Localization';\r\nimport { Settings } from '../config/settings.service';\r\nimport { LocalizationWithLines } from '../types/localization-with-lines';\r\n\r\n@Injectable({\r\n    providedIn: 'root',\r\n})\r\nexport class Translations {\r\n\r\n    /**\r\n     * Fired when active localization changes.\r\n     */\r\n    public localizationChange = new EventEmitter();\r\n\r\n    /**\r\n     * Currently active localization.\r\n     */\r\n    private localization: LocalizationWithLines = {model: new Localization(), name: '', lines: {}};\r\n\r\n    constructor(private settings: Settings) {}\r\n\r\n    /**\r\n     * Translate specified key.\r\n     */\r\n    public t(transKey: string, values?: object): string {\r\n        if ( ! transKey) return '';\r\n        if ( ! this.translationsEnabled()) {\r\n            return this.replacePlaceholders(transKey, values);\r\n        }\r\n        const translation = this.localization.lines[transKey.toLowerCase().trim()] || transKey;\r\n        return this.replacePlaceholders(translation, values);\r\n    }\r\n\r\n    private replacePlaceholders(message: string, values: object): string {\r\n        if ( ! values) return message;\r\n\r\n        const keys = Object.keys(values);\r\n\r\n        keys.forEach(key => {\r\n            const regex = new RegExp(':' + key, 'g');\r\n            message = message.replace(regex, values[key]);\r\n        });\r\n\r\n        return message;\r\n    }\r\n\r\n    /**\r\n     * Get currently active localization.\r\n     */\r\n    public getActive(): LocalizationWithLines {\r\n        return this.localization;\r\n    }\r\n\r\n    /**\r\n     * Set active localization.\r\n     */\r\n    public setLocalization(localization: LocalizationWithLines) {\r\n        if (!localization || !localization.lines || !localization.model) return;\r\n        if (this.localization.model.name === localization.model.name) return;\r\n\r\n        localization.lines = this.objectKeysToLowerCase(localization.lines);\r\n        this.localization = localization;\r\n\r\n        this.localizationChange.emit();\r\n    }\r\n\r\n    private objectKeysToLowerCase(object: object) {\r\n        const newObject = {};\r\n\r\n        Object.keys(object).forEach(key => {\r\n            newObject[key.toLowerCase()] = object[key];\r\n        });\r\n\r\n        return newObject;\r\n    }\r\n\r\n    /**\r\n     * Check if i18n functionality is enabled.\r\n     */\r\n    private translationsEnabled(): boolean {\r\n        return this.settings.get('i18n.enable');\r\n    }\r\n}\r\n","import { mergeMap } from './mergeMap';\nexport function concatMap(project, resultSelector) {\n    return mergeMap(project, resultSelector, 1);\n}\n//# sourceMappingURL=concatMap.js.map","export enum HttpErrors {\r\n    Default = 'There was an issue. Please try again later.',\r\n    DefaultUpload = 'Could not upload file. Please try again later.'\r\n}\r\n\r\nexport const UPLOAD_FAIL_LEARN_MORE_LINK = 'https://support.vebto.com/help-center/articles/180/how-to-increase-file-maximum-upload-size';\r\n","export class Localization {\r\n\tid: number;\r\n\tname: string;\r\n\tlanguage: string;\r\n\tcreated_at?: string;\r\n\tupdated_at?: string;\r\n\r\n\tconstructor(params: Object = {}) {\r\n        for (const name in params) {\r\n            this[name] = params[name];\r\n        }\r\n    }\r\n}\r\n","import { ElementRef } from '@angular/core';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Coerces a data-bound value (typically a string) to a boolean. */\nfunction coerceBooleanProperty(value) {\n    return value != null && `${value}` !== 'false';\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction coerceNumberProperty(value, fallbackValue = 0) {\n    return _isNumberValue(value) ? Number(value) : fallbackValue;\n}\n/**\n * Whether the provided value is considered a number.\n * @docs-private\n */\nfunction _isNumberValue(value) {\n    // parseFloat(value) handles most of the cases we're interested in (it treats null, empty string,\n    // and other non-number values as NaN, where Number just uses 0) but it considers the string\n    // '123hello' to be a valid number. Therefore we also check if Number(value) is NaN.\n    return !isNaN(parseFloat(value)) && !isNaN(Number(value));\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nfunction coerceArray(value) {\n    return Array.isArray(value) ? value : [value];\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Coerces a value to a CSS pixel value. */\nfunction coerceCssPixelValue(value) {\n    if (value == null) {\n        return '';\n    }\n    return typeof value === 'string' ? value : `${value}px`;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Coerces an ElementRef or an Element into an element.\n * Useful for APIs that can accept either a ref or the native element itself.\n */\nfunction coerceElement(elementOrRef) {\n    return elementOrRef instanceof ElementRef ? elementOrRef.nativeElement : elementOrRef;\n}\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nexport { _isNumberValue, coerceArray, coerceBooleanProperty, coerceCssPixelValue, coerceElement, coerceNumberProperty };\n//# sourceMappingURL=coercion.js.map\n","import { Observable } from '../Observable';\nimport { isArray } from '../util/isArray';\nimport { isFunction } from '../util/isFunction';\nimport { map } from '../operators/map';\nconst toString = (() => Object.prototype.toString)();\nexport function fromEvent(target, eventName, options, resultSelector) {\n    if (isFunction(options)) {\n        resultSelector = options;\n        options = undefined;\n    }\n    if (resultSelector) {\n        return fromEvent(target, eventName, options).pipe(map(args => isArray(args) ? resultSelector(...args) : resultSelector(args)));\n    }\n    return new Observable(subscriber => {\n        function handler(e) {\n            if (arguments.length > 1) {\n                subscriber.next(Array.prototype.slice.call(arguments));\n            }\n            else {\n                subscriber.next(e);\n            }\n        }\n        setupSubscription(target, eventName, handler, subscriber, options);\n    });\n}\nfunction setupSubscription(sourceObj, eventName, handler, subscriber, options) {\n    let unsubscribe;\n    if (isEventTarget(sourceObj)) {\n        const source = sourceObj;\n        sourceObj.addEventListener(eventName, handler, options);\n        unsubscribe = () => source.removeEventListener(eventName, handler, options);\n    }\n    else if (isJQueryStyleEventEmitter(sourceObj)) {\n        const source = sourceObj;\n        sourceObj.on(eventName, handler);\n        unsubscribe = () => source.off(eventName, handler);\n    }\n    else if (isNodeStyleEventEmitter(sourceObj)) {\n        const source = sourceObj;\n        sourceObj.addListener(eventName, handler);\n        unsubscribe = () => source.removeListener(eventName, handler);\n    }\n    else if (sourceObj && sourceObj.length) {\n        for (let i = 0, len = sourceObj.length; i < len; i++) {\n            setupSubscription(sourceObj[i], eventName, handler, subscriber, options);\n        }\n    }\n    else {\n        throw new TypeError('Invalid event target');\n    }\n    subscriber.add(unsubscribe);\n}\nfunction isNodeStyleEventEmitter(sourceObj) {\n    return sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';\n}\nfunction isJQueryStyleEventEmitter(sourceObj) {\n    return sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';\n}\nfunction isEventTarget(sourceObj) {\n    return sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';\n}\n//# sourceMappingURL=fromEvent.js.map","import { AsyncAction } from './AsyncAction';\nexport class AnimationFrameAction extends AsyncAction {\n    constructor(scheduler, work) {\n        super(scheduler, work);\n        this.scheduler = scheduler;\n        this.work = work;\n    }\n    requestAsyncId(scheduler, id, delay = 0) {\n        if (delay !== null && delay > 0) {\n            return super.requestAsyncId(scheduler, id, delay);\n        }\n        scheduler.actions.push(this);\n        return scheduler.scheduled || (scheduler.scheduled = requestAnimationFrame(() => scheduler.flush(null)));\n    }\n    recycleAsyncId(scheduler, id, delay = 0) {\n        if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n            return super.recycleAsyncId(scheduler, id, delay);\n        }\n        if (scheduler.actions.length === 0) {\n            cancelAnimationFrame(id);\n            scheduler.scheduled = undefined;\n        }\n        return undefined;\n    }\n}\n//# sourceMappingURL=AnimationFrameAction.js.map","import { AnimationFrameAction } from './AnimationFrameAction';\nimport { AnimationFrameScheduler } from './AnimationFrameScheduler';\nexport const animationFrame = new AnimationFrameScheduler(AnimationFrameAction);\n//# sourceMappingURL=animationFrame.js.map","import { AsyncScheduler } from './AsyncScheduler';\nexport class AnimationFrameScheduler extends AsyncScheduler {\n    flush(action) {\n        this.active = true;\n        this.scheduled = undefined;\n        const { actions } = this;\n        let error;\n        let index = -1;\n        let count = actions.length;\n        action = action || actions.shift();\n        do {\n            if (error = action.execute(action.state, action.delay)) {\n                break;\n            }\n        } while (++index < count && (action = actions.shift()));\n        this.active = false;\n        if (error) {\n            while (++index < count && (action = actions.shift())) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    }\n}\n//# sourceMappingURL=AnimationFrameScheduler.js.map","let nextHandle = 1;\nconst RESOLVED = (() => Promise.resolve())();\nconst activeHandles = {};\nfunction findAndClearHandle(handle) {\n    if (handle in activeHandles) {\n        delete activeHandles[handle];\n        return true;\n    }\n    return false;\n}\nexport const Immediate = {\n    setImmediate(cb) {\n        const handle = nextHandle++;\n        activeHandles[handle] = true;\n        RESOLVED.then(() => findAndClearHandle(handle) && cb());\n        return handle;\n    },\n    clearImmediate(handle) {\n        findAndClearHandle(handle);\n    },\n};\nexport const TestTools = {\n    pending() {\n        return Object.keys(activeHandles).length;\n    }\n};\n//# sourceMappingURL=Immediate.js.map","import { Immediate } from '../util/Immediate';\nimport { AsyncAction } from './AsyncAction';\nexport class AsapAction extends AsyncAction {\n    constructor(scheduler, work) {\n        super(scheduler, work);\n        this.scheduler = scheduler;\n        this.work = work;\n    }\n    requestAsyncId(scheduler, id, delay = 0) {\n        if (delay !== null && delay > 0) {\n            return super.requestAsyncId(scheduler, id, delay);\n        }\n        scheduler.actions.push(this);\n        return scheduler.scheduled || (scheduler.scheduled = Immediate.setImmediate(scheduler.flush.bind(scheduler, null)));\n    }\n    recycleAsyncId(scheduler, id, delay = 0) {\n        if ((delay !== null && delay > 0) || (delay === null && this.delay > 0)) {\n            return super.recycleAsyncId(scheduler, id, delay);\n        }\n        if (scheduler.actions.length === 0) {\n            Immediate.clearImmediate(id);\n            scheduler.scheduled = undefined;\n        }\n        return undefined;\n    }\n}\n//# sourceMappingURL=AsapAction.js.map","import { AsapAction } from './AsapAction';\nimport { AsapScheduler } from './AsapScheduler';\nexport const asap = new AsapScheduler(AsapAction);\n//# sourceMappingURL=asap.js.map","import { AsyncScheduler } from './AsyncScheduler';\nexport class AsapScheduler extends AsyncScheduler {\n    flush(action) {\n        this.active = true;\n        this.scheduled = undefined;\n        const { actions } = this;\n        let error;\n        let index = -1;\n        let count = actions.length;\n        action = action || actions.shift();\n        do {\n            if (error = action.execute(action.state, action.delay)) {\n                break;\n            }\n        } while (++index < count && (action = actions.shift()));\n        this.active = false;\n        if (error) {\n            while (++index < count && (action = actions.shift())) {\n                action.unsubscribe();\n            }\n            throw error;\n        }\n    }\n}\n//# sourceMappingURL=AsapScheduler.js.map","import { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function audit(durationSelector) {\n    return function auditOperatorFunction(source) {\n        return source.lift(new AuditOperator(durationSelector));\n    };\n}\nclass AuditOperator {\n    constructor(durationSelector) {\n        this.durationSelector = durationSelector;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new AuditSubscriber(subscriber, this.durationSelector));\n    }\n}\nclass AuditSubscriber extends OuterSubscriber {\n    constructor(destination, durationSelector) {\n        super(destination);\n        this.durationSelector = durationSelector;\n        this.hasValue = false;\n    }\n    _next(value) {\n        this.value = value;\n        this.hasValue = true;\n        if (!this.throttled) {\n            let duration;\n            try {\n                const { durationSelector } = this;\n                duration = durationSelector(value);\n            }\n            catch (err) {\n                return this.destination.error(err);\n            }\n            const innerSubscription = subscribeToResult(this, duration);\n            if (!innerSubscription || innerSubscription.closed) {\n                this.clearThrottle();\n            }\n            else {\n                this.add(this.throttled = innerSubscription);\n            }\n        }\n    }\n    clearThrottle() {\n        const { value, hasValue, throttled } = this;\n        if (throttled) {\n            this.remove(throttled);\n            this.throttled = null;\n            throttled.unsubscribe();\n        }\n        if (hasValue) {\n            this.value = null;\n            this.hasValue = false;\n            this.destination.next(value);\n        }\n    }\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex) {\n        this.clearThrottle();\n    }\n    notifyComplete() {\n        this.clearThrottle();\n    }\n}\n//# sourceMappingURL=audit.js.map","import { isArray } from './isArray';\nexport function isNumeric(val) {\n    return !isArray(val) && (val - parseFloat(val) + 1) >= 0;\n}\n//# sourceMappingURL=isNumeric.js.map","import { Observable } from '../Observable';\nimport { async } from '../scheduler/async';\nimport { isNumeric } from '../util/isNumeric';\nimport { isScheduler } from '../util/isScheduler';\nexport function timer(dueTime = 0, periodOrScheduler, scheduler) {\n    let period = -1;\n    if (isNumeric(periodOrScheduler)) {\n        period = Number(periodOrScheduler) < 1 && 1 || Number(periodOrScheduler);\n    }\n    else if (isScheduler(periodOrScheduler)) {\n        scheduler = periodOrScheduler;\n    }\n    if (!isScheduler(scheduler)) {\n        scheduler = async;\n    }\n    return new Observable(subscriber => {\n        const due = isNumeric(dueTime)\n            ? dueTime\n            : (+dueTime - scheduler.now());\n        return scheduler.schedule(dispatch, due, {\n            index: 0, period, subscriber\n        });\n    });\n}\nfunction dispatch(state) {\n    const { index, period, subscriber } = state;\n    subscriber.next(index);\n    if (subscriber.closed) {\n        return;\n    }\n    else if (period === -1) {\n        return subscriber.complete();\n    }\n    state.index = index + 1;\n    this.schedule(state, period);\n}\n//# sourceMappingURL=timer.js.map","import { async } from '../scheduler/async';\nimport { audit } from './audit';\nimport { timer } from '../observable/timer';\nexport function auditTime(duration, scheduler = async) {\n    return audit(() => timer(duration, scheduler));\n}\n//# sourceMappingURL=auditTime.js.map","import { of } from './of';\nimport { concatAll } from '../operators/concatAll';\nexport function concat(...observables) {\n    return concatAll()(of(...observables));\n}\n//# sourceMappingURL=concat.js.map","import { mergeAll } from './mergeAll';\nexport function concatAll() {\n    return mergeAll(1);\n}\n//# sourceMappingURL=concatAll.js.map","import { concat } from '../observable/concat';\nimport { isScheduler } from '../util/isScheduler';\nexport function startWith(...array) {\n    const scheduler = array[array.length - 1];\n    if (isScheduler(scheduler)) {\n        array.pop();\n        return (source) => concat(array, source, scheduler);\n    }\n    else {\n        return (source) => concat(array, source);\n    }\n}\n//# sourceMappingURL=startWith.js.map","import { Subscriber } from '../Subscriber';\nexport function pairwise() {\n    return (source) => source.lift(new PairwiseOperator());\n}\nclass PairwiseOperator {\n    call(subscriber, source) {\n        return source.subscribe(new PairwiseSubscriber(subscriber));\n    }\n}\nclass PairwiseSubscriber extends Subscriber {\n    constructor(destination) {\n        super(destination);\n        this.hasPrev = false;\n    }\n    _next(value) {\n        let pair;\n        if (this.hasPrev) {\n            pair = [this.prev, value];\n        }\n        else {\n            this.hasPrev = true;\n        }\n        this.prev = value;\n        if (pair) {\n            this.destination.next(pair);\n        }\n    }\n}\n//# sourceMappingURL=pairwise.js.map","import { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { map } from './map';\nimport { from } from '../observable/from';\nexport function switchMap(project, resultSelector) {\n    if (typeof resultSelector === 'function') {\n        return (source) => source.pipe(switchMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii)))));\n    }\n    return (source) => source.lift(new SwitchMapOperator(project));\n}\nclass SwitchMapOperator {\n    constructor(project) {\n        this.project = project;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new SwitchMapSubscriber(subscriber, this.project));\n    }\n}\nclass SwitchMapSubscriber extends OuterSubscriber {\n    constructor(destination, project) {\n        super(destination);\n        this.project = project;\n        this.index = 0;\n    }\n    _next(value) {\n        let result;\n        const index = this.index++;\n        try {\n            result = this.project(value, index);\n        }\n        catch (error) {\n            this.destination.error(error);\n            return;\n        }\n        this._innerSub(result, value, index);\n    }\n    _innerSub(result, value, index) {\n        const innerSubscription = this.innerSubscription;\n        if (innerSubscription) {\n            innerSubscription.unsubscribe();\n        }\n        const innerSubscriber = new InnerSubscriber(this, value, index);\n        const destination = this.destination;\n        destination.add(innerSubscriber);\n        this.innerSubscription = subscribeToResult(this, result, undefined, undefined, innerSubscriber);\n        if (this.innerSubscription !== innerSubscriber) {\n            destination.add(this.innerSubscription);\n        }\n    }\n    _complete() {\n        const { innerSubscription } = this;\n        if (!innerSubscription || innerSubscription.closed) {\n            super._complete();\n        }\n        this.unsubscribe();\n    }\n    _unsubscribe() {\n        this.innerSubscription = null;\n    }\n    notifyComplete(innerSub) {\n        const destination = this.destination;\n        destination.remove(innerSub);\n        this.innerSubscription = null;\n        if (this.isStopped) {\n            super._complete();\n        }\n    }\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(innerValue);\n    }\n}\n//# sourceMappingURL=switchMap.js.map","import { Injectable, Optional, Inject, PLATFORM_ID, ɵɵdefineInjectable, ɵɵinject, NgModule } from '@angular/core';\nimport { isPlatformBrowser } from '@angular/common';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/platform/platform.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Whether the current platform supports the V8 Break Iterator. The V8 check\n// is necessary to detect all Blink based browsers.\n/** @type {?} */\nimport * as ɵngcc0 from '@angular/core';\nlet hasV8BreakIterator;\n// We need a try/catch around the reference to `Intl`, because accessing it in some cases can\n// cause IE to throw. These cases are tied to particular versions of Windows and can happen if\n// the consumer is providing a polyfilled `Map`. See:\n// https://github.com/Microsoft/ChakraCore/issues/3189\n// https://github.com/angular/components/issues/15687\ntry {\n    hasV8BreakIterator = (typeof Intl !== 'undefined' && ((/** @type {?} */ (Intl))).v8BreakIterator);\n}\ncatch (_a) {\n    hasV8BreakIterator = false;\n}\n/**\n * Service to detect the current platform by comparing the userAgent strings and\n * checking browser-specific global properties.\n */\nclass Platform {\n    /**\n     * \\@breaking-change 8.0.0 remove optional decorator\n     * @param {?=} _platformId\n     */\n    constructor(_platformId) {\n        this._platformId = _platformId;\n        // We want to use the Angular platform check because if the Document is shimmed\n        // without the navigator, the following checks will fail. This is preferred because\n        // sometimes the Document may be shimmed without the user's knowledge or intention\n        /**\n         * Whether the Angular application is being rendered in the browser.\n         */\n        this.isBrowser = this._platformId ?\n            isPlatformBrowser(this._platformId) : typeof document === 'object' && !!document;\n        /**\n         * Whether the current browser is Microsoft Edge.\n         */\n        this.EDGE = this.isBrowser && /(edge)/i.test(navigator.userAgent);\n        /**\n         * Whether the current rendering engine is Microsoft Trident.\n         */\n        this.TRIDENT = this.isBrowser && /(msie|trident)/i.test(navigator.userAgent);\n        // EdgeHTML and Trident mock Blink specific things and need to be excluded from this check.\n        /**\n         * Whether the current rendering engine is Blink.\n         */\n        this.BLINK = this.isBrowser && (!!(((/** @type {?} */ (window))).chrome || hasV8BreakIterator) &&\n            typeof CSS !== 'undefined' && !this.EDGE && !this.TRIDENT);\n        // Webkit is part of the userAgent in EdgeHTML, Blink and Trident. Therefore we need to\n        // ensure that Webkit runs standalone and is not used as another engine's base.\n        /**\n         * Whether the current rendering engine is WebKit.\n         */\n        this.WEBKIT = this.isBrowser &&\n            /AppleWebKit/i.test(navigator.userAgent) && !this.BLINK && !this.EDGE && !this.TRIDENT;\n        /**\n         * Whether the current platform is Apple iOS.\n         */\n        this.IOS = this.isBrowser && /iPad|iPhone|iPod/.test(navigator.userAgent) &&\n            !('MSStream' in window);\n        // It's difficult to detect the plain Gecko engine, because most of the browsers identify\n        // them self as Gecko-like browsers and modify the userAgent's according to that.\n        // Since we only cover one explicit Firefox case, we can simply check for Firefox\n        // instead of having an unstable check for Gecko.\n        /**\n         * Whether the current browser is Firefox.\n         */\n        this.FIREFOX = this.isBrowser && /(firefox|minefield)/i.test(navigator.userAgent);\n        /**\n         * Whether the current platform is Android.\n         */\n        // Trident on mobile adds the android platform to the userAgent to trick detections.\n        this.ANDROID = this.isBrowser && /android/i.test(navigator.userAgent) && !this.TRIDENT;\n        // Safari browsers will include the Safari keyword in their userAgent. Some browsers may fake\n        // this and just place the Safari keyword in the userAgent. To be more safe about Safari every\n        // Safari browser should also use Webkit as its layout engine.\n        /**\n         * Whether the current browser is Safari.\n         */\n        this.SAFARI = this.isBrowser && /safari/i.test(navigator.userAgent) && this.WEBKIT;\n    }\n}\nPlatform.ɵfac = function Platform_Factory(t) { return new (t || Platform)(ɵngcc0.ɵɵinject(PLATFORM_ID, 8)); };\n/** @nocollapse */\nPlatform.ctorParameters = () => [\n    { type: Object, decorators: [{ type: Optional }, { type: Inject, args: [PLATFORM_ID,] }] }\n];\n/** @nocollapse */ Platform.ɵprov = ɵɵdefineInjectable({ factory: function Platform_Factory() { return new Platform(ɵɵinject(PLATFORM_ID, 8)); }, token: Platform, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Platform, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: Object, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [PLATFORM_ID]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * Whether the Angular application is being rendered in the browser.\n     * @type {?}\n     */\n    Platform.prototype.isBrowser;\n    /**\n     * Whether the current browser is Microsoft Edge.\n     * @type {?}\n     */\n    Platform.prototype.EDGE;\n    /**\n     * Whether the current rendering engine is Microsoft Trident.\n     * @type {?}\n     */\n    Platform.prototype.TRIDENT;\n    /**\n     * Whether the current rendering engine is Blink.\n     * @type {?}\n     */\n    Platform.prototype.BLINK;\n    /**\n     * Whether the current rendering engine is WebKit.\n     * @type {?}\n     */\n    Platform.prototype.WEBKIT;\n    /**\n     * Whether the current platform is Apple iOS.\n     * @type {?}\n     */\n    Platform.prototype.IOS;\n    /**\n     * Whether the current browser is Firefox.\n     * @type {?}\n     */\n    Platform.prototype.FIREFOX;\n    /**\n     * Whether the current platform is Android.\n     * @type {?}\n     */\n    Platform.prototype.ANDROID;\n    /**\n     * Whether the current browser is Safari.\n     * @type {?}\n     */\n    Platform.prototype.SAFARI;\n    /**\n     * @type {?}\n     * @private\n     */\n    Platform.prototype._platformId;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/platform/platform-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass PlatformModule {\n}\nPlatformModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: PlatformModule });\nPlatformModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function PlatformModule_Factory(t) { return new (t || PlatformModule)(); } });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PlatformModule, [{\n        type: NgModule,\n        args: [{}]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/platform/features/input-types.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Cached result Set of input types support by the current browser.\n * @type {?}\n */\nlet supportedInputTypes;\n/**\n * Types of `<input>` that *might* be supported.\n * @type {?}\n */\nconst candidateInputTypes = [\n    // `color` must come first. Chrome 56 shows a warning if we change the type to `color` after\n    // first changing it to something else:\n    // The specified value \"\" does not conform to the required format.\n    // The format is \"#rrggbb\" where rr, gg, bb are two-digit hexadecimal numbers.\n    'color',\n    'button',\n    'checkbox',\n    'date',\n    'datetime-local',\n    'email',\n    'file',\n    'hidden',\n    'image',\n    'month',\n    'number',\n    'password',\n    'radio',\n    'range',\n    'reset',\n    'search',\n    'submit',\n    'tel',\n    'text',\n    'time',\n    'url',\n    'week',\n];\n/**\n * @return {?} The input types supported by this browser.\n */\nfunction getSupportedInputTypes() {\n    // Result is cached.\n    if (supportedInputTypes) {\n        return supportedInputTypes;\n    }\n    // We can't check if an input type is not supported until we're on the browser, so say that\n    // everything is supported when not on the browser. We don't use `Platform` here since it's\n    // just a helper function and can't inject it.\n    if (typeof document !== 'object' || !document) {\n        supportedInputTypes = new Set(candidateInputTypes);\n        return supportedInputTypes;\n    }\n    /** @type {?} */\n    let featureTestInput = document.createElement('input');\n    supportedInputTypes = new Set(candidateInputTypes.filter((/**\n     * @param {?} value\n     * @return {?}\n     */\n    value => {\n        featureTestInput.setAttribute('type', value);\n        return featureTestInput.type === value;\n    })));\n    return supportedInputTypes;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/platform/features/passive-listeners.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Cached result of whether the user's browser supports passive event listeners.\n * @type {?}\n */\nlet supportsPassiveEvents;\n/**\n * Checks whether the user's browser supports passive event listeners.\n * See: https://github.com/WICG/EventListenerOptions/blob/gh-pages/explainer.md\n * @return {?}\n */\nfunction supportsPassiveEventListeners() {\n    if (supportsPassiveEvents == null && typeof window !== 'undefined') {\n        try {\n            window.addEventListener('test', (/** @type {?} */ (null)), Object.defineProperty({}, 'passive', {\n                get: (/**\n                 * @return {?}\n                 */\n                () => supportsPassiveEvents = true)\n            }));\n        }\n        finally {\n            supportsPassiveEvents = supportsPassiveEvents || false;\n        }\n    }\n    return supportsPassiveEvents;\n}\n/**\n * Normalizes an `AddEventListener` object to something that can be passed\n * to `addEventListener` on any browser, no matter whether it supports the\n * `options` parameter.\n * @param {?} options Object to be normalized.\n * @return {?}\n */\nfunction normalizePassiveListenerOptions(options) {\n    return supportsPassiveEventListeners() ? options : !!options.capture;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/platform/features/scrolling.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst RtlScrollAxisType = {\n    /**\n     * scrollLeft is 0 when scrolled all the way left and (scrollWidth - clientWidth) when scrolled\n     * all the way right.\n     */\n    NORMAL: 0,\n    /**\n     * scrollLeft is -(scrollWidth - clientWidth) when scrolled all the way left and 0 when scrolled\n     * all the way right.\n     */\n    NEGATED: 1,\n    /**\n     * scrollLeft is (scrollWidth - clientWidth) when scrolled all the way left and 0 when scrolled\n     * all the way right.\n     */\n    INVERTED: 2,\n};\n/**\n * Cached result of the way the browser handles the horizontal scroll axis in RTL mode.\n * @type {?}\n */\nlet rtlScrollAxisType;\n/**\n * Check whether the browser supports scroll behaviors.\n * @return {?}\n */\nfunction supportsScrollBehavior() {\n    return !!(typeof document == 'object' && 'scrollBehavior' in (/** @type {?} */ (document.documentElement)).style);\n}\n/**\n * Checks the type of RTL scroll axis used by this browser. As of time of writing, Chrome is NORMAL,\n * Firefox & Safari are NEGATED, and IE & Edge are INVERTED.\n * @return {?}\n */\nfunction getRtlScrollAxisType() {\n    // We can't check unless we're on the browser. Just assume 'normal' if we're not.\n    if (typeof document !== 'object' || !document) {\n        return 0 /* NORMAL */;\n    }\n    if (rtlScrollAxisType == null) {\n        // Create a 1px wide scrolling container and a 2px wide content element.\n        /** @type {?} */\n        const scrollContainer = document.createElement('div');\n        /** @type {?} */\n        const containerStyle = scrollContainer.style;\n        scrollContainer.dir = 'rtl';\n        containerStyle.height = '1px';\n        containerStyle.width = '1px';\n        containerStyle.overflow = 'auto';\n        containerStyle.visibility = 'hidden';\n        containerStyle.pointerEvents = 'none';\n        containerStyle.position = 'absolute';\n        /** @type {?} */\n        const content = document.createElement('div');\n        /** @type {?} */\n        const contentStyle = content.style;\n        contentStyle.width = '2px';\n        contentStyle.height = '1px';\n        scrollContainer.appendChild(content);\n        document.body.appendChild(scrollContainer);\n        rtlScrollAxisType = 0 /* NORMAL */;\n        // The viewport starts scrolled all the way to the right in RTL mode. If we are in a NORMAL\n        // browser this would mean that the scrollLeft should be 1. If it's zero instead we know we're\n        // dealing with one of the other two types of browsers.\n        if (scrollContainer.scrollLeft === 0) {\n            // In a NEGATED browser the scrollLeft is always somewhere in [-maxScrollAmount, 0]. For an\n            // INVERTED browser it is always somewhere in [0, maxScrollAmount]. We can determine which by\n            // setting to the scrollLeft to 1. This is past the max for a NEGATED browser, so it will\n            // return 0 when we read it again.\n            scrollContainer.scrollLeft = 1;\n            rtlScrollAxisType =\n                scrollContainer.scrollLeft === 0 ? 1 /* NEGATED */ : 2 /* INVERTED */;\n        }\n        (/** @type {?} */ (scrollContainer.parentNode)).removeChild(scrollContainer);\n    }\n    return rtlScrollAxisType;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/platform/features/shadow-dom.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nlet shadowDomIsSupported;\n/**\n * Checks whether the user's browser support Shadow DOM.\n * @return {?}\n */\nfunction _supportsShadowDom() {\n    if (shadowDomIsSupported == null) {\n        /** @type {?} */\n        const head = typeof document !== 'undefined' ? document.head : null;\n        shadowDomIsSupported = !!(head && (((/** @type {?} */ (head))).createShadowRoot || head.attachShadow));\n    }\n    return shadowDomIsSupported;\n}\n/**\n * Gets the shadow root of an element, if supported and the element is inside the Shadow DOM.\n * @param {?} element\n * @return {?}\n */\nfunction _getShadowRoot(element) {\n    if (_supportsShadowDom()) {\n        /** @type {?} */\n        const rootNode = element.getRootNode ? element.getRootNode() : null;\n        // Note that this should be caught by `_supportsShadowDom`, but some\n        // teams have been able to hit this code path on unsupported browsers.\n        if (typeof ShadowRoot !== 'undefined' && ShadowRoot && rootNode instanceof ShadowRoot) {\n            return rootNode;\n        }\n    }\n    return null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/platform/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Platform, PlatformModule, _getShadowRoot, _supportsShadowDom, getRtlScrollAxisType, getSupportedInputTypes, normalizePassiveListenerOptions, supportsPassiveEventListeners, supportsScrollBehavior };\n\n//# sourceMappingURL=platform.js.map","import { InjectionToken, inject, EventEmitter, Injectable, Optional, Inject, ɵɵdefineInjectable, ɵɵinject, Directive, Output, Input, NgModule } from '@angular/core';\nimport { DOCUMENT } from '@angular/common';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/bidi/dir-document-token.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token used to inject the document into Directionality.\n * This is used so that the value can be faked in tests.\n *\n * We can't use the real document in tests because changing the real `dir` causes geometry-based\n * tests in Safari to fail.\n *\n * We also can't re-provide the DOCUMENT token from platform-brower because the unit tests\n * themselves use things like `querySelector` in test code.\n *\n * This token is defined in a separate file from Directionality as a workaround for\n * https://github.com/angular/angular/issues/22559\n *\n * \\@docs-private\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nconst DIR_DOCUMENT = new InjectionToken('cdk-dir-doc', {\n    providedIn: 'root',\n    factory: DIR_DOCUMENT_FACTORY,\n});\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction DIR_DOCUMENT_FACTORY() {\n    return inject(DOCUMENT);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/bidi/directionality.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The directionality (LTR / RTL) context for the application (or a subtree of it).\n * Exposes the current direction and a stream of direction changes.\n */\nclass Directionality {\n    /**\n     * @param {?=} _document\n     */\n    constructor(_document) {\n        /**\n         * The current 'ltr' or 'rtl' value.\n         */\n        this.value = 'ltr';\n        /**\n         * Stream that emits whenever the 'ltr' / 'rtl' state changes.\n         */\n        this.change = new EventEmitter();\n        if (_document) {\n            // TODO: handle 'auto' value -\n            // We still need to account for dir=\"auto\".\n            // It looks like HTMLElemenet.dir is also \"auto\" when that's set to the attribute,\n            // but getComputedStyle return either \"ltr\" or \"rtl\". avoiding getComputedStyle for now\n            /** @type {?} */\n            const bodyDir = _document.body ? _document.body.dir : null;\n            /** @type {?} */\n            const htmlDir = _document.documentElement ? _document.documentElement.dir : null;\n            /** @type {?} */\n            const value = bodyDir || htmlDir;\n            this.value = (value === 'ltr' || value === 'rtl') ? value : 'ltr';\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this.change.complete();\n    }\n}\nDirectionality.ɵfac = function Directionality_Factory(t) { return new (t || Directionality)(ɵngcc0.ɵɵinject(DIR_DOCUMENT, 8)); };\n/** @nocollapse */\nDirectionality.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DIR_DOCUMENT,] }] }\n];\n/** @nocollapse */ Directionality.ɵprov = ɵɵdefineInjectable({ factory: function Directionality_Factory() { return new Directionality(ɵɵinject(DIR_DOCUMENT, 8)); }, token: Directionality, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Directionality, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DIR_DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * The current 'ltr' or 'rtl' value.\n     * @type {?}\n     */\n    Directionality.prototype.value;\n    /**\n     * Stream that emits whenever the 'ltr' / 'rtl' state changes.\n     * @type {?}\n     */\n    Directionality.prototype.change;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/bidi/dir.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Directive to listen for changes of direction of part of the DOM.\n *\n * Provides itself as Directionality such that descendant directives only need to ever inject\n * Directionality to get the closest direction.\n */\nclass Dir {\n    constructor() {\n        /**\n         * Normalized direction that accounts for invalid/unsupported values.\n         */\n        this._dir = 'ltr';\n        /**\n         * Whether the `value` has been set to its initial value.\n         */\n        this._isInitialized = false;\n        /**\n         * Event emitted when the direction changes.\n         */\n        this.change = new EventEmitter();\n    }\n    /**\n     * \\@docs-private\n     * @return {?}\n     */\n    get dir() { return this._dir; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set dir(value) {\n        /** @type {?} */\n        const old = this._dir;\n        /** @type {?} */\n        const normalizedValue = value ? value.toLowerCase() : value;\n        this._rawDir = value;\n        this._dir = (normalizedValue === 'ltr' || normalizedValue === 'rtl') ? normalizedValue : 'ltr';\n        if (old !== this._dir && this._isInitialized) {\n            this.change.emit(this._dir);\n        }\n    }\n    /**\n     * Current layout direction of the element.\n     * @return {?}\n     */\n    get value() { return this.dir; }\n    /**\n     * Initialize once default value has been set.\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this._isInitialized = true;\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this.change.complete();\n    }\n}\nDir.ɵfac = function Dir_Factory(t) { return new (t || Dir)(); };\nDir.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: Dir, selectors: [[\"\", \"dir\", \"\"]], hostVars: 1, hostBindings: function Dir_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"dir\", ctx._rawDir);\n    } }, inputs: { dir: \"dir\" }, outputs: { change: \"dirChange\" }, exportAs: [\"dir\"], features: [ɵngcc0.ɵɵProvidersFeature([{ provide: Directionality, useExisting: Dir }])] });\nDir.propDecorators = {\n    change: [{ type: Output, args: ['dirChange',] }],\n    dir: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Dir, [{\n        type: Directive,\n        args: [{\n                selector: '[dir]',\n                providers: [{ provide: Directionality, useExisting: Dir }],\n                host: { '[attr.dir]': '_rawDir' },\n                exportAs: 'dir'\n            }]\n    }], function () { return []; }, { change: [{\n            type: Output,\n            args: ['dirChange']\n        }], dir: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * Normalized direction that accounts for invalid/unsupported values.\n     * @type {?}\n     * @private\n     */\n    Dir.prototype._dir;\n    /**\n     * Whether the `value` has been set to its initial value.\n     * @type {?}\n     * @private\n     */\n    Dir.prototype._isInitialized;\n    /**\n     * Direction as passed in by the consumer.\n     * @type {?}\n     */\n    Dir.prototype._rawDir;\n    /**\n     * Event emitted when the direction changes.\n     * @type {?}\n     */\n    Dir.prototype.change;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/bidi/bidi-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass BidiModule {\n}\nBidiModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: BidiModule });\nBidiModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function BidiModule_Factory(t) { return new (t || BidiModule)(); } });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(BidiModule, { declarations: [Dir], exports: [Dir] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BidiModule, [{\n        type: NgModule,\n        args: [{\n                exports: [Dir],\n                declarations: [Dir]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/bidi/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BidiModule, DIR_DOCUMENT, Dir, Directionality, DIR_DOCUMENT_FACTORY as ɵangular_material_src_cdk_bidi_bidi_a };\n\n//# sourceMappingURL=bidi.js.map","import { coerceNumberProperty } from '@angular/cdk/coercion';\nimport { InjectionToken, Directive, forwardRef, Input, Injectable, NgZone, Optional, Inject, ɵɵdefineInjectable, ɵɵinject, ElementRef, Component, ViewEncapsulation, ChangeDetectionStrategy, ChangeDetectorRef, Output, ViewChild, ViewContainerRef, TemplateRef, IterableDiffers, SkipSelf, NgModule } from '@angular/core';\nimport { Subject, of, Observable, fromEvent, merge, animationFrameScheduler, asapScheduler, Subscription, isObservable } from 'rxjs';\nimport { distinctUntilChanged, auditTime, filter, takeUntil, startWith, pairwise, switchMap, shareReplay } from 'rxjs/operators';\nimport { Platform, getRtlScrollAxisType, supportsScrollBehavior, PlatformModule } from '@angular/cdk/platform';\nimport { DOCUMENT } from '@angular/common';\nimport { Directionality, BidiModule } from '@angular/cdk/bidi';\nimport { isDataSource, ArrayDataSource } from '@angular/cdk/collections';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/virtual-scroll-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The injection token used to specify the virtual scrolling strategy.\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/platform';\nimport * as ɵngcc2 from '@angular/cdk/bidi';\n\nconst _c0 = [\"contentWrapper\"];\nconst _c1 = [\"*\"];\nconst VIRTUAL_SCROLL_STRATEGY = new InjectionToken('VIRTUAL_SCROLL_STRATEGY');\n/**\n * A strategy that dictates which items should be rendered in the viewport.\n * @record\n */\nfunction VirtualScrollStrategy() { }\nif (false) {\n    /**\n     * Emits when the index of the first element visible in the viewport changes.\n     * @type {?}\n     */\n    VirtualScrollStrategy.prototype.scrolledIndexChange;\n    /**\n     * Attaches this scroll strategy to a viewport.\n     * @param {?} viewport The viewport to attach this strategy to.\n     * @return {?}\n     */\n    VirtualScrollStrategy.prototype.attach = function (viewport) { };\n    /**\n     * Detaches this scroll strategy from the currently attached viewport.\n     * @return {?}\n     */\n    VirtualScrollStrategy.prototype.detach = function () { };\n    /**\n     * Called when the viewport is scrolled (debounced using requestAnimationFrame).\n     * @return {?}\n     */\n    VirtualScrollStrategy.prototype.onContentScrolled = function () { };\n    /**\n     * Called when the length of the data changes.\n     * @return {?}\n     */\n    VirtualScrollStrategy.prototype.onDataLengthChanged = function () { };\n    /**\n     * Called when the range of items rendered in the DOM has changed.\n     * @return {?}\n     */\n    VirtualScrollStrategy.prototype.onContentRendered = function () { };\n    /**\n     * Called when the offset of the rendered items changed.\n     * @return {?}\n     */\n    VirtualScrollStrategy.prototype.onRenderedOffsetChanged = function () { };\n    /**\n     * Scroll to the offset for the given index.\n     * @param {?} index The index of the element to scroll to.\n     * @param {?} behavior The ScrollBehavior to use when scrolling.\n     * @return {?}\n     */\n    VirtualScrollStrategy.prototype.scrollToIndex = function (index, behavior) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/fixed-size-virtual-scroll.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Virtual scrolling strategy for lists with items of known fixed size.\n */\nclass FixedSizeVirtualScrollStrategy {\n    /**\n     * @param {?} itemSize The size of the items in the virtually scrolling list.\n     * @param {?} minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n     * @param {?} maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n     */\n    constructor(itemSize, minBufferPx, maxBufferPx) {\n        this._scrolledIndexChange = new Subject();\n        /**\n         * \\@docs-private Implemented as part of VirtualScrollStrategy.\n         */\n        this.scrolledIndexChange = this._scrolledIndexChange.pipe(distinctUntilChanged());\n        /**\n         * The attached viewport.\n         */\n        this._viewport = null;\n        this._itemSize = itemSize;\n        this._minBufferPx = minBufferPx;\n        this._maxBufferPx = maxBufferPx;\n    }\n    /**\n     * Attaches this scroll strategy to a viewport.\n     * @param {?} viewport The viewport to attach this strategy to.\n     * @return {?}\n     */\n    attach(viewport) {\n        this._viewport = viewport;\n        this._updateTotalContentSize();\n        this._updateRenderedRange();\n    }\n    /**\n     * Detaches this scroll strategy from the currently attached viewport.\n     * @return {?}\n     */\n    detach() {\n        this._scrolledIndexChange.complete();\n        this._viewport = null;\n    }\n    /**\n     * Update the item size and buffer size.\n     * @param {?} itemSize The size of the items in the virtually scrolling list.\n     * @param {?} minBufferPx The minimum amount of buffer (in pixels) before needing to render more\n     * @param {?} maxBufferPx The amount of buffer (in pixels) to render when rendering more.\n     * @return {?}\n     */\n    updateItemAndBufferSize(itemSize, minBufferPx, maxBufferPx) {\n        if (maxBufferPx < minBufferPx) {\n            throw Error('CDK virtual scroll: maxBufferPx must be greater than or equal to minBufferPx');\n        }\n        this._itemSize = itemSize;\n        this._minBufferPx = minBufferPx;\n        this._maxBufferPx = maxBufferPx;\n        this._updateTotalContentSize();\n        this._updateRenderedRange();\n    }\n    /**\n     * \\@docs-private Implemented as part of VirtualScrollStrategy.\n     * @return {?}\n     */\n    onContentScrolled() {\n        this._updateRenderedRange();\n    }\n    /**\n     * \\@docs-private Implemented as part of VirtualScrollStrategy.\n     * @return {?}\n     */\n    onDataLengthChanged() {\n        this._updateTotalContentSize();\n        this._updateRenderedRange();\n    }\n    /**\n     * \\@docs-private Implemented as part of VirtualScrollStrategy.\n     * @return {?}\n     */\n    onContentRendered() { }\n    /**\n     * \\@docs-private Implemented as part of VirtualScrollStrategy.\n     * @return {?}\n     */\n    onRenderedOffsetChanged() { }\n    /**\n     * Scroll to the offset for the given index.\n     * @param {?} index The index of the element to scroll to.\n     * @param {?} behavior The ScrollBehavior to use when scrolling.\n     * @return {?}\n     */\n    scrollToIndex(index, behavior) {\n        if (this._viewport) {\n            this._viewport.scrollToOffset(index * this._itemSize, behavior);\n        }\n    }\n    /**\n     * Update the viewport's total content size.\n     * @private\n     * @return {?}\n     */\n    _updateTotalContentSize() {\n        if (!this._viewport) {\n            return;\n        }\n        this._viewport.setTotalContentSize(this._viewport.getDataLength() * this._itemSize);\n    }\n    /**\n     * Update the viewport's rendered range.\n     * @private\n     * @return {?}\n     */\n    _updateRenderedRange() {\n        if (!this._viewport) {\n            return;\n        }\n        /** @type {?} */\n        const scrollOffset = this._viewport.measureScrollOffset();\n        /** @type {?} */\n        const firstVisibleIndex = scrollOffset / this._itemSize;\n        /** @type {?} */\n        const renderedRange = this._viewport.getRenderedRange();\n        /** @type {?} */\n        const newRange = { start: renderedRange.start, end: renderedRange.end };\n        /** @type {?} */\n        const viewportSize = this._viewport.getViewportSize();\n        /** @type {?} */\n        const dataLength = this._viewport.getDataLength();\n        /** @type {?} */\n        const startBuffer = scrollOffset - newRange.start * this._itemSize;\n        if (startBuffer < this._minBufferPx && newRange.start != 0) {\n            /** @type {?} */\n            const expandStart = Math.ceil((this._maxBufferPx - startBuffer) / this._itemSize);\n            newRange.start = Math.max(0, newRange.start - expandStart);\n            newRange.end = Math.min(dataLength, Math.ceil(firstVisibleIndex + (viewportSize + this._minBufferPx) / this._itemSize));\n        }\n        else {\n            /** @type {?} */\n            const endBuffer = newRange.end * this._itemSize - (scrollOffset + viewportSize);\n            if (endBuffer < this._minBufferPx && newRange.end != dataLength) {\n                /** @type {?} */\n                const expandEnd = Math.ceil((this._maxBufferPx - endBuffer) / this._itemSize);\n                if (expandEnd > 0) {\n                    newRange.end = Math.min(dataLength, newRange.end + expandEnd);\n                    newRange.start = Math.max(0, Math.floor(firstVisibleIndex - this._minBufferPx / this._itemSize));\n                }\n            }\n        }\n        this._viewport.setRenderedRange(newRange);\n        this._viewport.setRenderedContentOffset(this._itemSize * newRange.start);\n        this._scrolledIndexChange.next(Math.floor(firstVisibleIndex));\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    FixedSizeVirtualScrollStrategy.prototype._scrolledIndexChange;\n    /**\n     * \\@docs-private Implemented as part of VirtualScrollStrategy.\n     * @type {?}\n     */\n    FixedSizeVirtualScrollStrategy.prototype.scrolledIndexChange;\n    /**\n     * The attached viewport.\n     * @type {?}\n     * @private\n     */\n    FixedSizeVirtualScrollStrategy.prototype._viewport;\n    /**\n     * The size of the items in the virtually scrolling list.\n     * @type {?}\n     * @private\n     */\n    FixedSizeVirtualScrollStrategy.prototype._itemSize;\n    /**\n     * The minimum amount of buffer rendered beyond the viewport (in pixels).\n     * @type {?}\n     * @private\n     */\n    FixedSizeVirtualScrollStrategy.prototype._minBufferPx;\n    /**\n     * The number of buffer items to render beyond the edge of the viewport (in pixels).\n     * @type {?}\n     * @private\n     */\n    FixedSizeVirtualScrollStrategy.prototype._maxBufferPx;\n}\n/**\n * Provider factory for `FixedSizeVirtualScrollStrategy` that simply extracts the already created\n * `FixedSizeVirtualScrollStrategy` from the given directive.\n * @param {?} fixedSizeDir The instance of `CdkFixedSizeVirtualScroll` to extract the\n *     `FixedSizeVirtualScrollStrategy` from.\n * @return {?}\n */\nfunction _fixedSizeVirtualScrollStrategyFactory(fixedSizeDir) {\n    return fixedSizeDir._scrollStrategy;\n}\n/**\n * A virtual scroll strategy that supports fixed-size items.\n */\nclass CdkFixedSizeVirtualScroll {\n    constructor() {\n        this._itemSize = 20;\n        this._minBufferPx = 100;\n        this._maxBufferPx = 200;\n        /**\n         * The scroll strategy used by this directive.\n         */\n        this._scrollStrategy = new FixedSizeVirtualScrollStrategy(this.itemSize, this.minBufferPx, this.maxBufferPx);\n    }\n    /**\n     * The size of the items in the list (in pixels).\n     * @return {?}\n     */\n    get itemSize() { return this._itemSize; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set itemSize(value) { this._itemSize = coerceNumberProperty(value); }\n    /**\n     * The minimum amount of buffer rendered beyond the viewport (in pixels).\n     * If the amount of buffer dips below this number, more items will be rendered. Defaults to 100px.\n     * @return {?}\n     */\n    get minBufferPx() { return this._minBufferPx; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set minBufferPx(value) { this._minBufferPx = coerceNumberProperty(value); }\n    /**\n     * The number of pixels worth of buffer to render for when rendering new items. Defaults to 200px.\n     * @return {?}\n     */\n    get maxBufferPx() { return this._maxBufferPx; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set maxBufferPx(value) { this._maxBufferPx = coerceNumberProperty(value); }\n    /**\n     * @return {?}\n     */\n    ngOnChanges() {\n        this._scrollStrategy.updateItemAndBufferSize(this.itemSize, this.minBufferPx, this.maxBufferPx);\n    }\n}\nCdkFixedSizeVirtualScroll.ɵfac = function CdkFixedSizeVirtualScroll_Factory(t) { return new (t || CdkFixedSizeVirtualScroll)(); };\nCdkFixedSizeVirtualScroll.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkFixedSizeVirtualScroll, selectors: [[\"cdk-virtual-scroll-viewport\", \"itemSize\", \"\"]], inputs: { itemSize: \"itemSize\", minBufferPx: \"minBufferPx\", maxBufferPx: \"maxBufferPx\" }, features: [ɵngcc0.ɵɵProvidersFeature([{\n                provide: VIRTUAL_SCROLL_STRATEGY,\n                useFactory: _fixedSizeVirtualScrollStrategyFactory,\n                deps: [forwardRef(( /**\n                         * @return {?}\n                         */() => CdkFixedSizeVirtualScroll))]\n            }]), ɵngcc0.ɵɵNgOnChangesFeature] });\nCdkFixedSizeVirtualScroll.propDecorators = {\n    itemSize: [{ type: Input }],\n    minBufferPx: [{ type: Input }],\n    maxBufferPx: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkFixedSizeVirtualScroll, [{\n        type: Directive,\n        args: [{\n                selector: 'cdk-virtual-scroll-viewport[itemSize]',\n                providers: [{\n                        provide: VIRTUAL_SCROLL_STRATEGY,\n                        useFactory: _fixedSizeVirtualScrollStrategyFactory,\n                        deps: [forwardRef(( /**\n                                 * @return {?}\n                                 */() => CdkFixedSizeVirtualScroll))]\n                    }]\n            }]\n    }], function () { return []; }, { itemSize: [{\n            type: Input\n        }], minBufferPx: [{\n            type: Input\n        }], maxBufferPx: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkFixedSizeVirtualScroll.ngAcceptInputType_itemSize;\n    /** @type {?} */\n    CdkFixedSizeVirtualScroll.ngAcceptInputType_minBufferPx;\n    /** @type {?} */\n    CdkFixedSizeVirtualScroll.ngAcceptInputType_maxBufferPx;\n    /** @type {?} */\n    CdkFixedSizeVirtualScroll.prototype._itemSize;\n    /** @type {?} */\n    CdkFixedSizeVirtualScroll.prototype._minBufferPx;\n    /** @type {?} */\n    CdkFixedSizeVirtualScroll.prototype._maxBufferPx;\n    /**\n     * The scroll strategy used by this directive.\n     * @type {?}\n     */\n    CdkFixedSizeVirtualScroll.prototype._scrollStrategy;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/scroll-dispatcher.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Time in ms to throttle the scrolling events by default.\n * @type {?}\n */\nconst DEFAULT_SCROLL_TIME = 20;\n/**\n * Service contained all registered Scrollable references and emits an event when any one of the\n * Scrollable references emit a scrolled event.\n */\nclass ScrollDispatcher {\n    /**\n     * @param {?} _ngZone\n     * @param {?} _platform\n     * @param {?=} document\n     */\n    constructor(_ngZone, _platform, \n    /** @breaking-change 11.0.0 make document required */\n    document) {\n        this._ngZone = _ngZone;\n        this._platform = _platform;\n        /**\n         * Subject for notifying that a registered scrollable reference element has been scrolled.\n         */\n        this._scrolled = new Subject();\n        /**\n         * Keeps track of the global `scroll` and `resize` subscriptions.\n         */\n        this._globalSubscription = null;\n        /**\n         * Keeps track of the amount of subscriptions to `scrolled`. Used for cleaning up afterwards.\n         */\n        this._scrolledCount = 0;\n        /**\n         * Map of all the scrollable references that are registered with the service and their\n         * scroll event subscriptions.\n         */\n        this.scrollContainers = new Map();\n        this._document = document;\n    }\n    /**\n     * Registers a scrollable instance with the service and listens for its scrolled events. When the\n     * scrollable is scrolled, the service emits the event to its scrolled observable.\n     * @param {?} scrollable Scrollable instance to be registered.\n     * @return {?}\n     */\n    register(scrollable) {\n        if (!this.scrollContainers.has(scrollable)) {\n            this.scrollContainers.set(scrollable, scrollable.elementScrolled()\n                .subscribe((/**\n             * @return {?}\n             */\n            () => this._scrolled.next(scrollable))));\n        }\n    }\n    /**\n     * Deregisters a Scrollable reference and unsubscribes from its scroll event observable.\n     * @param {?} scrollable Scrollable instance to be deregistered.\n     * @return {?}\n     */\n    deregister(scrollable) {\n        /** @type {?} */\n        const scrollableReference = this.scrollContainers.get(scrollable);\n        if (scrollableReference) {\n            scrollableReference.unsubscribe();\n            this.scrollContainers.delete(scrollable);\n        }\n    }\n    /**\n     * Returns an observable that emits an event whenever any of the registered Scrollable\n     * references (or window, document, or body) fire a scrolled event. Can provide a time in ms\n     * to override the default \"throttle\" time.\n     *\n     * **Note:** in order to avoid hitting change detection for every scroll event,\n     * all of the events emitted from this stream will be run outside the Angular zone.\n     * If you need to update any data bindings as a result of a scroll event, you have\n     * to run the callback using `NgZone.run`.\n     * @param {?=} auditTimeInMs\n     * @return {?}\n     */\n    scrolled(auditTimeInMs = DEFAULT_SCROLL_TIME) {\n        if (!this._platform.isBrowser) {\n            return of();\n        }\n        return new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            if (!this._globalSubscription) {\n                this._addGlobalListener();\n            }\n            // In the case of a 0ms delay, use an observable without auditTime\n            // since it does add a perceptible delay in processing overhead.\n            /** @type {?} */\n            const subscription = auditTimeInMs > 0 ?\n                this._scrolled.pipe(auditTime(auditTimeInMs)).subscribe(observer) :\n                this._scrolled.subscribe(observer);\n            this._scrolledCount++;\n            return (/**\n             * @return {?}\n             */\n            () => {\n                subscription.unsubscribe();\n                this._scrolledCount--;\n                if (!this._scrolledCount) {\n                    this._removeGlobalListener();\n                }\n            });\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._removeGlobalListener();\n        this.scrollContainers.forEach((/**\n         * @param {?} _\n         * @param {?} container\n         * @return {?}\n         */\n        (_, container) => this.deregister(container)));\n        this._scrolled.complete();\n    }\n    /**\n     * Returns an observable that emits whenever any of the\n     * scrollable ancestors of an element are scrolled.\n     * @param {?} elementRef Element whose ancestors to listen for.\n     * @param {?=} auditTimeInMs Time to throttle the scroll events.\n     * @return {?}\n     */\n    ancestorScrolled(elementRef, auditTimeInMs) {\n        /** @type {?} */\n        const ancestors = this.getAncestorScrollContainers(elementRef);\n        return this.scrolled(auditTimeInMs).pipe(filter((/**\n         * @param {?} target\n         * @return {?}\n         */\n        target => {\n            return !target || ancestors.indexOf(target) > -1;\n        })));\n    }\n    /**\n     * Returns all registered Scrollables that contain the provided element.\n     * @param {?} elementRef\n     * @return {?}\n     */\n    getAncestorScrollContainers(elementRef) {\n        /** @type {?} */\n        const scrollingContainers = [];\n        this.scrollContainers.forEach((/**\n         * @param {?} _subscription\n         * @param {?} scrollable\n         * @return {?}\n         */\n        (_subscription, scrollable) => {\n            if (this._scrollableContainsElement(scrollable, elementRef)) {\n                scrollingContainers.push(scrollable);\n            }\n        }));\n        return scrollingContainers;\n    }\n    /**\n     * Access injected document if available or fallback to global document reference\n     * @private\n     * @return {?}\n     */\n    _getDocument() {\n        return this._document || document;\n    }\n    /**\n     * Use defaultView of injected document if available or fallback to global window reference\n     * @private\n     * @return {?}\n     */\n    _getWindow() {\n        /** @type {?} */\n        const doc = this._getDocument();\n        return doc.defaultView || window;\n    }\n    /**\n     * Returns true if the element is contained within the provided Scrollable.\n     * @private\n     * @param {?} scrollable\n     * @param {?} elementRef\n     * @return {?}\n     */\n    _scrollableContainsElement(scrollable, elementRef) {\n        /** @type {?} */\n        let element = elementRef.nativeElement;\n        /** @type {?} */\n        let scrollableElement = scrollable.getElementRef().nativeElement;\n        // Traverse through the element parents until we reach null, checking if any of the elements\n        // are the scrollable's element.\n        do {\n            if (element == scrollableElement) {\n                return true;\n            }\n        } while (element = (/** @type {?} */ (element)).parentElement);\n        return false;\n    }\n    /**\n     * Sets up the global scroll listeners.\n     * @private\n     * @return {?}\n     */\n    _addGlobalListener() {\n        this._globalSubscription = this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const window = this._getWindow();\n            return fromEvent(window.document, 'scroll').subscribe((/**\n             * @return {?}\n             */\n            () => this._scrolled.next()));\n        }));\n    }\n    /**\n     * Cleans up the global scroll listener.\n     * @private\n     * @return {?}\n     */\n    _removeGlobalListener() {\n        if (this._globalSubscription) {\n            this._globalSubscription.unsubscribe();\n            this._globalSubscription = null;\n        }\n    }\n}\nScrollDispatcher.ɵfac = function ScrollDispatcher_Factory(t) { return new (t || ScrollDispatcher)(ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(ɵngcc1.Platform), ɵngcc0.ɵɵinject(DOCUMENT, 8)); };\n/** @nocollapse */\nScrollDispatcher.ctorParameters = () => [\n    { type: NgZone },\n    { type: Platform },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ ScrollDispatcher.ɵprov = ɵɵdefineInjectable({ factory: function ScrollDispatcher_Factory() { return new ScrollDispatcher(ɵɵinject(NgZone), ɵɵinject(Platform), ɵɵinject(DOCUMENT, 8)); }, token: ScrollDispatcher, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ScrollDispatcher, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc0.NgZone }, { type: ɵngcc1.Platform }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * Used to reference correct document/window\n     * @type {?}\n     * @protected\n     */\n    ScrollDispatcher.prototype._document;\n    /**\n     * Subject for notifying that a registered scrollable reference element has been scrolled.\n     * @type {?}\n     * @private\n     */\n    ScrollDispatcher.prototype._scrolled;\n    /**\n     * Keeps track of the global `scroll` and `resize` subscriptions.\n     * @type {?}\n     */\n    ScrollDispatcher.prototype._globalSubscription;\n    /**\n     * Keeps track of the amount of subscriptions to `scrolled`. Used for cleaning up afterwards.\n     * @type {?}\n     * @private\n     */\n    ScrollDispatcher.prototype._scrolledCount;\n    /**\n     * Map of all the scrollable references that are registered with the service and their\n     * scroll event subscriptions.\n     * @type {?}\n     */\n    ScrollDispatcher.prototype.scrollContainers;\n    /**\n     * @type {?}\n     * @private\n     */\n    ScrollDispatcher.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    ScrollDispatcher.prototype._platform;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/scrollable.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Sends an event when the directive's element is scrolled. Registers itself with the\n * ScrollDispatcher service to include itself as part of its collection of scrolling events that it\n * can be listened to through the service.\n */\nclass CdkScrollable {\n    /**\n     * @param {?} elementRef\n     * @param {?} scrollDispatcher\n     * @param {?} ngZone\n     * @param {?=} dir\n     */\n    constructor(elementRef, scrollDispatcher, ngZone, dir) {\n        this.elementRef = elementRef;\n        this.scrollDispatcher = scrollDispatcher;\n        this.ngZone = ngZone;\n        this.dir = dir;\n        this._destroyed = new Subject();\n        this._elementScrolled = new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => this.ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => fromEvent(this.elementRef.nativeElement, 'scroll').pipe(takeUntil(this._destroyed))\n            .subscribe(observer)))));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this.scrollDispatcher.register(this);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this.scrollDispatcher.deregister(this);\n        this._destroyed.next();\n        this._destroyed.complete();\n    }\n    /**\n     * Returns observable that emits when a scroll event is fired on the host element.\n     * @return {?}\n     */\n    elementScrolled() {\n        return this._elementScrolled;\n    }\n    /**\n     * Gets the ElementRef for the viewport.\n     * @return {?}\n     */\n    getElementRef() {\n        return this.elementRef;\n    }\n    /**\n     * Scrolls to the specified offsets. This is a normalized version of the browser's native scrollTo\n     * method, since browsers are not consistent about what scrollLeft means in RTL. For this method\n     * left and right always refer to the left and right side of the scrolling container irrespective\n     * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n     * in an RTL context.\n     * @param {?} options specified the offsets to scroll to.\n     * @return {?}\n     */\n    scrollTo(options) {\n        /** @type {?} */\n        const el = this.elementRef.nativeElement;\n        /** @type {?} */\n        const isRtl = this.dir && this.dir.value == 'rtl';\n        // Rewrite start & end offsets as right or left offsets.\n        if (options.left == null) {\n            options.left = isRtl ? options.end : options.start;\n        }\n        if (options.right == null) {\n            options.right = isRtl ? options.start : options.end;\n        }\n        // Rewrite the bottom offset as a top offset.\n        if (options.bottom != null) {\n            ((/** @type {?} */ (options))).top =\n                el.scrollHeight - el.clientHeight - options.bottom;\n        }\n        // Rewrite the right offset as a left offset.\n        if (isRtl && getRtlScrollAxisType() != 0 /* NORMAL */) {\n            if (options.left != null) {\n                ((/** @type {?} */ (options))).right =\n                    el.scrollWidth - el.clientWidth - options.left;\n            }\n            if (getRtlScrollAxisType() == 2 /* INVERTED */) {\n                options.left = options.right;\n            }\n            else if (getRtlScrollAxisType() == 1 /* NEGATED */) {\n                options.left = options.right ? -options.right : options.right;\n            }\n        }\n        else {\n            if (options.right != null) {\n                ((/** @type {?} */ (options))).left =\n                    el.scrollWidth - el.clientWidth - options.right;\n            }\n        }\n        this._applyScrollToOptions(options);\n    }\n    /**\n     * @private\n     * @param {?} options\n     * @return {?}\n     */\n    _applyScrollToOptions(options) {\n        /** @type {?} */\n        const el = this.elementRef.nativeElement;\n        if (supportsScrollBehavior()) {\n            el.scrollTo(options);\n        }\n        else {\n            if (options.top != null) {\n                el.scrollTop = options.top;\n            }\n            if (options.left != null) {\n                el.scrollLeft = options.left;\n            }\n        }\n    }\n    /**\n     * Measures the scroll offset relative to the specified edge of the viewport. This method can be\n     * used instead of directly checking scrollLeft or scrollTop, since browsers are not consistent\n     * about what scrollLeft means in RTL. The values returned by this method are normalized such that\n     * left and right always refer to the left and right side of the scrolling container irrespective\n     * of the layout direction. start and end refer to left and right in an LTR context and vice-versa\n     * in an RTL context.\n     * @param {?} from The edge to measure from.\n     * @return {?}\n     */\n    measureScrollOffset(from) {\n        /** @type {?} */\n        const LEFT = 'left';\n        /** @type {?} */\n        const RIGHT = 'right';\n        /** @type {?} */\n        const el = this.elementRef.nativeElement;\n        if (from == 'top') {\n            return el.scrollTop;\n        }\n        if (from == 'bottom') {\n            return el.scrollHeight - el.clientHeight - el.scrollTop;\n        }\n        // Rewrite start & end as left or right offsets.\n        /** @type {?} */\n        const isRtl = this.dir && this.dir.value == 'rtl';\n        if (from == 'start') {\n            from = isRtl ? RIGHT : LEFT;\n        }\n        else if (from == 'end') {\n            from = isRtl ? LEFT : RIGHT;\n        }\n        if (isRtl && getRtlScrollAxisType() == 2 /* INVERTED */) {\n            // For INVERTED, scrollLeft is (scrollWidth - clientWidth) when scrolled all the way left and\n            // 0 when scrolled all the way right.\n            if (from == LEFT) {\n                return el.scrollWidth - el.clientWidth - el.scrollLeft;\n            }\n            else {\n                return el.scrollLeft;\n            }\n        }\n        else if (isRtl && getRtlScrollAxisType() == 1 /* NEGATED */) {\n            // For NEGATED, scrollLeft is -(scrollWidth - clientWidth) when scrolled all the way left and\n            // 0 when scrolled all the way right.\n            if (from == LEFT) {\n                return el.scrollLeft + el.scrollWidth - el.clientWidth;\n            }\n            else {\n                return -el.scrollLeft;\n            }\n        }\n        else {\n            // For NORMAL, as well as non-RTL contexts, scrollLeft is 0 when scrolled all the way left and\n            // (scrollWidth - clientWidth) when scrolled all the way right.\n            if (from == LEFT) {\n                return el.scrollLeft;\n            }\n            else {\n                return el.scrollWidth - el.clientWidth - el.scrollLeft;\n            }\n        }\n    }\n}\nCdkScrollable.ɵfac = function CdkScrollable_Factory(t) { return new (t || CdkScrollable)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ScrollDispatcher), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8)); };\nCdkScrollable.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkScrollable, selectors: [[\"\", \"cdk-scrollable\", \"\"], [\"\", \"cdkScrollable\", \"\"]] });\n/** @nocollapse */\nCdkScrollable.ctorParameters = () => [\n    { type: ElementRef },\n    { type: ScrollDispatcher },\n    { type: NgZone },\n    { type: Directionality, decorators: [{ type: Optional }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkScrollable, [{\n        type: Directive,\n        args: [{\n                selector: '[cdk-scrollable], [cdkScrollable]'\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ScrollDispatcher }, { type: ɵngcc0.NgZone }, { type: ɵngcc2.Directionality, decorators: [{\n                type: Optional\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkScrollable.prototype._destroyed;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkScrollable.prototype._elementScrolled;\n    /**\n     * @type {?}\n     * @protected\n     */\n    CdkScrollable.prototype.elementRef;\n    /**\n     * @type {?}\n     * @protected\n     */\n    CdkScrollable.prototype.scrollDispatcher;\n    /**\n     * @type {?}\n     * @protected\n     */\n    CdkScrollable.prototype.ngZone;\n    /**\n     * @type {?}\n     * @protected\n     */\n    CdkScrollable.prototype.dir;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/viewport-ruler.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Time in ms to throttle the resize events by default.\n * @type {?}\n */\nconst DEFAULT_RESIZE_TIME = 20;\n/**\n * Object that holds the scroll position of the viewport in each direction.\n * @record\n */\nfunction ViewportScrollPosition() { }\nif (false) {\n    /** @type {?} */\n    ViewportScrollPosition.prototype.top;\n    /** @type {?} */\n    ViewportScrollPosition.prototype.left;\n}\n/**\n * Simple utility for getting the bounds of the browser viewport.\n * \\@docs-private\n */\nclass ViewportRuler {\n    /**\n     * @param {?} _platform\n     * @param {?} ngZone\n     * @param {?=} document\n     */\n    constructor(_platform, ngZone, \n    /** @breaking-change 11.0.0 make document required */\n    document) {\n        this._platform = _platform;\n        this._document = document;\n        ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const window = this._getWindow();\n            this._change = _platform.isBrowser ?\n                merge(fromEvent(window, 'resize'), fromEvent(window, 'orientationchange')) :\n                of();\n            // Note that we need to do the subscription inside `runOutsideAngular`\n            // since subscribing is what causes the event listener to be added.\n            this._invalidateCache = this.change().subscribe((/**\n             * @return {?}\n             */\n            () => this._updateViewportSize()));\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._invalidateCache.unsubscribe();\n    }\n    /**\n     * Returns the viewport's width and height.\n     * @return {?}\n     */\n    getViewportSize() {\n        if (!this._viewportSize) {\n            this._updateViewportSize();\n        }\n        /** @type {?} */\n        const output = { width: this._viewportSize.width, height: this._viewportSize.height };\n        // If we're not on a browser, don't cache the size since it'll be mocked out anyway.\n        if (!this._platform.isBrowser) {\n            this._viewportSize = (/** @type {?} */ (null));\n        }\n        return output;\n    }\n    /**\n     * Gets a ClientRect for the viewport's bounds.\n     * @return {?}\n     */\n    getViewportRect() {\n        // Use the document element's bounding rect rather than the window scroll properties\n        // (e.g. pageYOffset, scrollY) due to in issue in Chrome and IE where window scroll\n        // properties and client coordinates (boundingClientRect, clientX/Y, etc.) are in different\n        // conceptual viewports. Under most circumstances these viewports are equivalent, but they\n        // can disagree when the page is pinch-zoomed (on devices that support touch).\n        // See https://bugs.chromium.org/p/chromium/issues/detail?id=489206#c4\n        // We use the documentElement instead of the body because, by default (without a css reset)\n        // browsers typically give the document body an 8px margin, which is not included in\n        // getBoundingClientRect().\n        /** @type {?} */\n        const scrollPosition = this.getViewportScrollPosition();\n        const { width, height } = this.getViewportSize();\n        return {\n            top: scrollPosition.top,\n            left: scrollPosition.left,\n            bottom: scrollPosition.top + height,\n            right: scrollPosition.left + width,\n            height,\n            width,\n        };\n    }\n    /**\n     * Gets the (top, left) scroll position of the viewport.\n     * @return {?}\n     */\n    getViewportScrollPosition() {\n        // While we can get a reference to the fake document\n        // during SSR, it doesn't have getBoundingClientRect.\n        if (!this._platform.isBrowser) {\n            return { top: 0, left: 0 };\n        }\n        // The top-left-corner of the viewport is determined by the scroll position of the document\n        // body, normally just (scrollLeft, scrollTop). However, Chrome and Firefox disagree about\n        // whether `document.body` or `document.documentElement` is the scrolled element, so reading\n        // `scrollTop` and `scrollLeft` is inconsistent. However, using the bounding rect of\n        // `document.documentElement` works consistently, where the `top` and `left` values will\n        // equal negative the scroll position.\n        /** @type {?} */\n        const document = this._getDocument();\n        /** @type {?} */\n        const window = this._getWindow();\n        /** @type {?} */\n        const documentElement = (/** @type {?} */ (document.documentElement));\n        /** @type {?} */\n        const documentRect = documentElement.getBoundingClientRect();\n        /** @type {?} */\n        const top = -documentRect.top || document.body.scrollTop || window.scrollY ||\n            documentElement.scrollTop || 0;\n        /** @type {?} */\n        const left = -documentRect.left || document.body.scrollLeft || window.scrollX ||\n            documentElement.scrollLeft || 0;\n        return { top, left };\n    }\n    /**\n     * Returns a stream that emits whenever the size of the viewport changes.\n     * @param {?=} throttleTime Time in milliseconds to throttle the stream.\n     * @return {?}\n     */\n    change(throttleTime = DEFAULT_RESIZE_TIME) {\n        return throttleTime > 0 ? this._change.pipe(auditTime(throttleTime)) : this._change;\n    }\n    /**\n     * Access injected document if available or fallback to global document reference\n     * @private\n     * @return {?}\n     */\n    _getDocument() {\n        return this._document || document;\n    }\n    /**\n     * Use defaultView of injected document if available or fallback to global window reference\n     * @private\n     * @return {?}\n     */\n    _getWindow() {\n        /** @type {?} */\n        const doc = this._getDocument();\n        return doc.defaultView || window;\n    }\n    /**\n     * Updates the cached viewport size.\n     * @private\n     * @return {?}\n     */\n    _updateViewportSize() {\n        /** @type {?} */\n        const window = this._getWindow();\n        this._viewportSize = this._platform.isBrowser ?\n            { width: window.innerWidth, height: window.innerHeight } :\n            { width: 0, height: 0 };\n    }\n}\nViewportRuler.ɵfac = function ViewportRuler_Factory(t) { return new (t || ViewportRuler)(ɵngcc0.ɵɵinject(ɵngcc1.Platform), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(DOCUMENT, 8)); };\n/** @nocollapse */\nViewportRuler.ctorParameters = () => [\n    { type: Platform },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ ViewportRuler.ɵprov = ɵɵdefineInjectable({ factory: function ViewportRuler_Factory() { return new ViewportRuler(ɵɵinject(Platform), ɵɵinject(NgZone), ɵɵinject(DOCUMENT, 8)); }, token: ViewportRuler, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ViewportRuler, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc1.Platform }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * Cached viewport dimensions.\n     * @type {?}\n     * @private\n     */\n    ViewportRuler.prototype._viewportSize;\n    /**\n     * Stream of viewport change events.\n     * @type {?}\n     * @private\n     */\n    ViewportRuler.prototype._change;\n    /**\n     * Subscription to streams that invalidate the cached viewport dimensions.\n     * @type {?}\n     * @private\n     */\n    ViewportRuler.prototype._invalidateCache;\n    /**\n     * Used to reference correct document/window\n     * @type {?}\n     * @protected\n     */\n    ViewportRuler.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    ViewportRuler.prototype._platform;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/virtual-scroll-viewport.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Checks if the given ranges are equal.\n * @param {?} r1\n * @param {?} r2\n * @return {?}\n */\nfunction rangesEqual(r1, r2) {\n    return r1.start == r2.start && r1.end == r2.end;\n}\n/**\n * Scheduler to be used for scroll events. Needs to fall back to\n * something that doesn't rely on requestAnimationFrame on environments\n * that don't support it (e.g. server-side rendering).\n * @type {?}\n */\nconst SCROLL_SCHEDULER = typeof requestAnimationFrame !== 'undefined' ? animationFrameScheduler : asapScheduler;\n/**\n * A viewport that virtualizes its scrolling with the help of `CdkVirtualForOf`.\n */\nclass CdkVirtualScrollViewport extends CdkScrollable {\n    /**\n     * @param {?} elementRef\n     * @param {?} _changeDetectorRef\n     * @param {?} ngZone\n     * @param {?} _scrollStrategy\n     * @param {?} dir\n     * @param {?} scrollDispatcher\n     * @param {?=} viewportRuler\n     */\n    constructor(elementRef, _changeDetectorRef, ngZone, _scrollStrategy, dir, scrollDispatcher, \n    /**\n     * @deprecated `viewportRuler` parameter to become required.\n     * @breaking-change 11.0.0\n     */\n    viewportRuler) {\n        super(elementRef, scrollDispatcher, ngZone, dir);\n        this.elementRef = elementRef;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._scrollStrategy = _scrollStrategy;\n        /**\n         * Emits when the viewport is detached from a CdkVirtualForOf.\n         */\n        this._detachedSubject = new Subject();\n        /**\n         * Emits when the rendered range changes.\n         */\n        this._renderedRangeSubject = new Subject();\n        this._orientation = 'vertical';\n        // Note: we don't use the typical EventEmitter here because we need to subscribe to the scroll\n        // strategy lazily (i.e. only if the user is actually listening to the events). We do this because\n        // depending on how the strategy calculates the scrolled index, it may come at a cost to\n        // performance.\n        /**\n         * Emits when the index of the first element visible in the viewport changes.\n         */\n        this.scrolledIndexChange = new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => this._scrollStrategy.scrolledIndexChange.subscribe((/**\n         * @param {?} index\n         * @return {?}\n         */\n        index => Promise.resolve().then((/**\n         * @return {?}\n         */\n        () => this.ngZone.run((/**\n         * @return {?}\n         */\n        () => observer.next(index)))))))));\n        /**\n         * A stream that emits whenever the rendered range changes.\n         */\n        this.renderedRangeStream = this._renderedRangeSubject.asObservable();\n        /**\n         * The total size of all content (in pixels), including content that is not currently rendered.\n         */\n        this._totalContentSize = 0;\n        /**\n         * A string representing the `style.width` property value to be used for the spacer element.\n         */\n        this._totalContentWidth = '';\n        /**\n         * A string representing the `style.height` property value to be used for the spacer element.\n         */\n        this._totalContentHeight = '';\n        /**\n         * The currently rendered range of indices.\n         */\n        this._renderedRange = { start: 0, end: 0 };\n        /**\n         * The length of the data bound to this viewport (in number of items).\n         */\n        this._dataLength = 0;\n        /**\n         * The size of the viewport (in pixels).\n         */\n        this._viewportSize = 0;\n        /**\n         * The last rendered content offset that was set.\n         */\n        this._renderedContentOffset = 0;\n        /**\n         * Whether the last rendered content offset was to the end of the content (and therefore needs to\n         * be rewritten as an offset to the start of the content).\n         */\n        this._renderedContentOffsetNeedsRewrite = false;\n        /**\n         * Whether there is a pending change detection cycle.\n         */\n        this._isChangeDetectionPending = false;\n        /**\n         * A list of functions to run after the next change detection cycle.\n         */\n        this._runAfterChangeDetection = [];\n        /**\n         * Subscription to changes in the viewport size.\n         */\n        this._viewportChanges = Subscription.EMPTY;\n        if (!_scrollStrategy) {\n            throw Error('Error: cdk-virtual-scroll-viewport requires the \"itemSize\" property to be set.');\n        }\n        // @breaking-change 11.0.0 Remove null check for `viewportRuler`.\n        if (viewportRuler) {\n            this._viewportChanges = viewportRuler.change().subscribe((/**\n             * @return {?}\n             */\n            () => {\n                this.checkViewportSize();\n            }));\n        }\n    }\n    /**\n     * The direction the viewport scrolls.\n     * @return {?}\n     */\n    get orientation() {\n        return this._orientation;\n    }\n    /**\n     * @param {?} orientation\n     * @return {?}\n     */\n    set orientation(orientation) {\n        if (this._orientation !== orientation) {\n            this._orientation = orientation;\n            this._calculateSpacerSize();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        super.ngOnInit();\n        // It's still too early to measure the viewport at this point. Deferring with a promise allows\n        // the Viewport to be rendered with the correct size before we measure. We run this outside the\n        // zone to avoid causing more change detection cycles. We handle the change detection loop\n        // ourselves instead.\n        this.ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => Promise.resolve().then((/**\n         * @return {?}\n         */\n        () => {\n            this._measureViewportSize();\n            this._scrollStrategy.attach(this);\n            this.elementScrolled()\n                .pipe(\n            // Start off with a fake scroll event so we properly detect our initial position.\n            startWith((/** @type {?} */ (null))), \n            // Collect multiple events into one until the next animation frame. This way if\n            // there are multiple scroll events in the same frame we only need to recheck\n            // our layout once.\n            auditTime(0, SCROLL_SCHEDULER))\n                .subscribe((/**\n             * @return {?}\n             */\n            () => this._scrollStrategy.onContentScrolled()));\n            this._markChangeDetectionNeeded();\n        }))));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this.detach();\n        this._scrollStrategy.detach();\n        // Complete all subjects\n        this._renderedRangeSubject.complete();\n        this._detachedSubject.complete();\n        this._viewportChanges.unsubscribe();\n        super.ngOnDestroy();\n    }\n    /**\n     * Attaches a `CdkVirtualForOf` to this viewport.\n     * @param {?} forOf\n     * @return {?}\n     */\n    attach(forOf) {\n        if (this._forOf) {\n            throw Error('CdkVirtualScrollViewport is already attached.');\n        }\n        // Subscribe to the data stream of the CdkVirtualForOf to keep track of when the data length\n        // changes. Run outside the zone to avoid triggering change detection, since we're managing the\n        // change detection loop ourselves.\n        this.ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            this._forOf = forOf;\n            this._forOf.dataStream.pipe(takeUntil(this._detachedSubject)).subscribe((/**\n             * @param {?} data\n             * @return {?}\n             */\n            data => {\n                /** @type {?} */\n                const newLength = data.length;\n                if (newLength !== this._dataLength) {\n                    this._dataLength = newLength;\n                    this._scrollStrategy.onDataLengthChanged();\n                }\n                this._doChangeDetection();\n            }));\n        }));\n    }\n    /**\n     * Detaches the current `CdkVirtualForOf`.\n     * @return {?}\n     */\n    detach() {\n        this._forOf = null;\n        this._detachedSubject.next();\n    }\n    /**\n     * Gets the length of the data bound to this viewport (in number of items).\n     * @return {?}\n     */\n    getDataLength() {\n        return this._dataLength;\n    }\n    /**\n     * Gets the size of the viewport (in pixels).\n     * @return {?}\n     */\n    getViewportSize() {\n        return this._viewportSize;\n    }\n    // TODO(mmalerba): This is technically out of sync with what's really rendered until a render\n    // cycle happens. I'm being careful to only call it after the render cycle is complete and before\n    // setting it to something else, but its error prone and should probably be split into\n    // `pendingRange` and `renderedRange`, the latter reflecting whats actually in the DOM.\n    /**\n     * Get the current rendered range of items.\n     * @return {?}\n     */\n    getRenderedRange() {\n        return this._renderedRange;\n    }\n    /**\n     * Sets the total size of all content (in pixels), including content that is not currently\n     * rendered.\n     * @param {?} size\n     * @return {?}\n     */\n    setTotalContentSize(size) {\n        if (this._totalContentSize !== size) {\n            this._totalContentSize = size;\n            this._calculateSpacerSize();\n            this._markChangeDetectionNeeded();\n        }\n    }\n    /**\n     * Sets the currently rendered range of indices.\n     * @param {?} range\n     * @return {?}\n     */\n    setRenderedRange(range) {\n        if (!rangesEqual(this._renderedRange, range)) {\n            this._renderedRangeSubject.next(this._renderedRange = range);\n            this._markChangeDetectionNeeded((/**\n             * @return {?}\n             */\n            () => this._scrollStrategy.onContentRendered()));\n        }\n    }\n    /**\n     * Gets the offset from the start of the viewport to the start of the rendered data (in pixels).\n     * @return {?}\n     */\n    getOffsetToRenderedContentStart() {\n        return this._renderedContentOffsetNeedsRewrite ? null : this._renderedContentOffset;\n    }\n    /**\n     * Sets the offset from the start of the viewport to either the start or end of the rendered data\n     * (in pixels).\n     * @param {?} offset\n     * @param {?=} to\n     * @return {?}\n     */\n    setRenderedContentOffset(offset, to = 'to-start') {\n        // For a horizontal viewport in a right-to-left language we need to translate along the x-axis\n        // in the negative direction.\n        /** @type {?} */\n        const isRtl = this.dir && this.dir.value == 'rtl';\n        /** @type {?} */\n        const isHorizontal = this.orientation == 'horizontal';\n        /** @type {?} */\n        const axis = isHorizontal ? 'X' : 'Y';\n        /** @type {?} */\n        const axisDirection = isHorizontal && isRtl ? -1 : 1;\n        /** @type {?} */\n        let transform = `translate${axis}(${Number(axisDirection * offset)}px)`;\n        this._renderedContentOffset = offset;\n        if (to === 'to-end') {\n            transform += ` translate${axis}(-100%)`;\n            // The viewport should rewrite this as a `to-start` offset on the next render cycle. Otherwise\n            // elements will appear to expand in the wrong direction (e.g. `mat-expansion-panel` would\n            // expand upward).\n            this._renderedContentOffsetNeedsRewrite = true;\n        }\n        if (this._renderedContentTransform != transform) {\n            // We know this value is safe because we parse `offset` with `Number()` before passing it\n            // into the string.\n            this._renderedContentTransform = transform;\n            this._markChangeDetectionNeeded((/**\n             * @return {?}\n             */\n            () => {\n                if (this._renderedContentOffsetNeedsRewrite) {\n                    this._renderedContentOffset -= this.measureRenderedContentSize();\n                    this._renderedContentOffsetNeedsRewrite = false;\n                    this.setRenderedContentOffset(this._renderedContentOffset);\n                }\n                else {\n                    this._scrollStrategy.onRenderedOffsetChanged();\n                }\n            }));\n        }\n    }\n    /**\n     * Scrolls to the given offset from the start of the viewport. Please note that this is not always\n     * the same as setting `scrollTop` or `scrollLeft`. In a horizontal viewport with right-to-left\n     * direction, this would be the equivalent of setting a fictional `scrollRight` property.\n     * @param {?} offset The offset to scroll to.\n     * @param {?=} behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n     * @return {?}\n     */\n    scrollToOffset(offset, behavior = 'auto') {\n        /** @type {?} */\n        const options = { behavior };\n        if (this.orientation === 'horizontal') {\n            options.start = offset;\n        }\n        else {\n            options.top = offset;\n        }\n        this.scrollTo(options);\n    }\n    /**\n     * Scrolls to the offset for the given index.\n     * @param {?} index The index of the element to scroll to.\n     * @param {?=} behavior The ScrollBehavior to use when scrolling. Default is behavior is `auto`.\n     * @return {?}\n     */\n    scrollToIndex(index, behavior = 'auto') {\n        this._scrollStrategy.scrollToIndex(index, behavior);\n    }\n    /**\n     * Gets the current scroll offset from the start of the viewport (in pixels).\n     * @param {?=} from The edge to measure the offset from. Defaults to 'top' in vertical mode and 'start'\n     *     in horizontal mode.\n     * @return {?}\n     */\n    measureScrollOffset(from) {\n        return from ?\n            super.measureScrollOffset(from) :\n            super.measureScrollOffset(this.orientation === 'horizontal' ? 'start' : 'top');\n    }\n    /**\n     * Measure the combined size of all of the rendered items.\n     * @return {?}\n     */\n    measureRenderedContentSize() {\n        /** @type {?} */\n        const contentEl = this._contentWrapper.nativeElement;\n        return this.orientation === 'horizontal' ? contentEl.offsetWidth : contentEl.offsetHeight;\n    }\n    /**\n     * Measure the total combined size of the given range. Throws if the range includes items that are\n     * not rendered.\n     * @param {?} range\n     * @return {?}\n     */\n    measureRangeSize(range) {\n        if (!this._forOf) {\n            return 0;\n        }\n        return this._forOf.measureRangeSize(range, this.orientation);\n    }\n    /**\n     * Update the viewport dimensions and re-render.\n     * @return {?}\n     */\n    checkViewportSize() {\n        // TODO: Cleanup later when add logic for handling content resize\n        this._measureViewportSize();\n        this._scrollStrategy.onDataLengthChanged();\n    }\n    /**\n     * Measure the viewport size.\n     * @private\n     * @return {?}\n     */\n    _measureViewportSize() {\n        /** @type {?} */\n        const viewportEl = this.elementRef.nativeElement;\n        this._viewportSize = this.orientation === 'horizontal' ?\n            viewportEl.clientWidth : viewportEl.clientHeight;\n    }\n    /**\n     * Queue up change detection to run.\n     * @private\n     * @param {?=} runAfter\n     * @return {?}\n     */\n    _markChangeDetectionNeeded(runAfter) {\n        if (runAfter) {\n            this._runAfterChangeDetection.push(runAfter);\n        }\n        // Use a Promise to batch together calls to `_doChangeDetection`. This way if we set a bunch of\n        // properties sequentially we only have to run `_doChangeDetection` once at the end.\n        if (!this._isChangeDetectionPending) {\n            this._isChangeDetectionPending = true;\n            this.ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => Promise.resolve().then((/**\n             * @return {?}\n             */\n            () => {\n                this._doChangeDetection();\n            }))));\n        }\n    }\n    /**\n     * Run change detection.\n     * @private\n     * @return {?}\n     */\n    _doChangeDetection() {\n        this._isChangeDetectionPending = false;\n        // Apply the content transform. The transform can't be set via an Angular binding because\n        // bypassSecurityTrustStyle is banned in Google. However the value is safe, it's composed of\n        // string literals, a variable that can only be 'X' or 'Y', and user input that is run through\n        // the `Number` function first to coerce it to a numeric value.\n        this._contentWrapper.nativeElement.style.transform = this._renderedContentTransform;\n        // Apply changes to Angular bindings. Note: We must call `markForCheck` to run change detection\n        // from the root, since the repeated items are content projected in. Calling `detectChanges`\n        // instead does not properly check the projected content.\n        this.ngZone.run((/**\n         * @return {?}\n         */\n        () => this._changeDetectorRef.markForCheck()));\n        /** @type {?} */\n        const runAfterChangeDetection = this._runAfterChangeDetection;\n        this._runAfterChangeDetection = [];\n        for (const fn of runAfterChangeDetection) {\n            fn();\n        }\n    }\n    /**\n     * Calculates the `style.width` and `style.height` for the spacer element.\n     * @private\n     * @return {?}\n     */\n    _calculateSpacerSize() {\n        this._totalContentHeight =\n            this.orientation === 'horizontal' ? '' : `${this._totalContentSize}px`;\n        this._totalContentWidth =\n            this.orientation === 'horizontal' ? `${this._totalContentSize}px` : '';\n    }\n}\nCdkVirtualScrollViewport.ɵfac = function CdkVirtualScrollViewport_Factory(t) { return new (t || CdkVirtualScrollViewport)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(VIRTUAL_SCROLL_STRATEGY, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(ScrollDispatcher), ɵngcc0.ɵɵdirectiveInject(ViewportRuler, 8)); };\nCdkVirtualScrollViewport.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: CdkVirtualScrollViewport, selectors: [[\"cdk-virtual-scroll-viewport\"]], viewQuery: function CdkVirtualScrollViewport_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵstaticViewQuery(_c0, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._contentWrapper = _t.first);\n    } }, hostAttrs: [1, \"cdk-virtual-scroll-viewport\"], hostVars: 4, hostBindings: function CdkVirtualScrollViewport_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"cdk-virtual-scroll-orientation-horizontal\", ctx.orientation === \"horizontal\")(\"cdk-virtual-scroll-orientation-vertical\", ctx.orientation !== \"horizontal\");\n    } }, inputs: { orientation: \"orientation\" }, outputs: { scrolledIndexChange: \"scrolledIndexChange\" }, features: [ɵngcc0.ɵɵProvidersFeature([{\n                provide: CdkScrollable,\n                useExisting: CdkVirtualScrollViewport\n            }]), ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c1, decls: 4, vars: 4, consts: [[1, \"cdk-virtual-scroll-content-wrapper\"], [\"contentWrapper\", \"\"], [1, \"cdk-virtual-scroll-spacer\"]], template: function CdkVirtualScrollViewport_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵelementStart(0, \"div\", 0, 1);\n        ɵngcc0.ɵɵprojection(2);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelement(3, \"div\", 2);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵstyleProp(\"width\", ctx._totalContentWidth)(\"height\", ctx._totalContentHeight);\n    } }, styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:none}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:none}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nCdkVirtualScrollViewport.ctorParameters = () => [\n    { type: ElementRef },\n    { type: ChangeDetectorRef },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [VIRTUAL_SCROLL_STRATEGY,] }] },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: ScrollDispatcher },\n    { type: ViewportRuler, decorators: [{ type: Optional }] }\n];\nCdkVirtualScrollViewport.propDecorators = {\n    orientation: [{ type: Input }],\n    scrolledIndexChange: [{ type: Output }],\n    _contentWrapper: [{ type: ViewChild, args: ['contentWrapper', { static: true },] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkVirtualScrollViewport, [{\n        type: Component,\n        args: [{\n                selector: 'cdk-virtual-scroll-viewport',\n                template: \"<!--\\n  Wrap the rendered content in an element that will be used to offset it based on the scroll\\n  position.\\n-->\\n<div #contentWrapper class=\\\"cdk-virtual-scroll-content-wrapper\\\">\\n  <ng-content></ng-content>\\n</div>\\n<!--\\n  Spacer used to force the scrolling container to the correct size for the *total* number of items\\n  so that the scrollbar captures the size of the entire data set.\\n-->\\n<div class=\\\"cdk-virtual-scroll-spacer\\\"\\n     [style.width]=\\\"_totalContentWidth\\\" [style.height]=\\\"_totalContentHeight\\\"></div>\\n\",\n                host: {\n                    'class': 'cdk-virtual-scroll-viewport',\n                    '[class.cdk-virtual-scroll-orientation-horizontal]': 'orientation === \"horizontal\"',\n                    '[class.cdk-virtual-scroll-orientation-vertical]': 'orientation !== \"horizontal\"'\n                },\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                providers: [{\n                        provide: CdkScrollable,\n                        useExisting: CdkVirtualScrollViewport\n                    }],\n                styles: [\"cdk-virtual-scroll-viewport{display:block;position:relative;overflow:auto;contain:strict;transform:translateZ(0);will-change:scroll-position;-webkit-overflow-scrolling:touch}.cdk-virtual-scroll-content-wrapper{position:absolute;top:0;left:0;contain:content}[dir=rtl] .cdk-virtual-scroll-content-wrapper{right:0;left:auto}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper{min-height:100%}.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-horizontal .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-left:0;padding-right:0;margin-left:0;margin-right:0;border-left-width:0;border-right-width:0;outline:none}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper{min-width:100%}.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>dl:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ol:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>table:not([cdkVirtualFor]),.cdk-virtual-scroll-orientation-vertical .cdk-virtual-scroll-content-wrapper>ul:not([cdkVirtualFor]){padding-top:0;padding-bottom:0;margin-top:0;margin-bottom:0;border-top-width:0;border-bottom-width:0;outline:none}.cdk-virtual-scroll-spacer{position:absolute;top:0;left:0;height:1px;width:1px;transform-origin:0 0}[dir=rtl] .cdk-virtual-scroll-spacer{right:0;left:auto;transform-origin:100% 0}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [VIRTUAL_SCROLL_STRATEGY]\n            }] }, { type: ɵngcc2.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: ScrollDispatcher }, { type: ViewportRuler, decorators: [{\n                type: Optional\n            }] }]; }, { scrolledIndexChange: [{\n            type: Output\n        }], orientation: [{\n            type: Input\n        }], _contentWrapper: [{\n            type: ViewChild,\n            args: ['contentWrapper', { static: true }]\n        }] }); })();\nif (false) {\n    /**\n     * Emits when the viewport is detached from a CdkVirtualForOf.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._detachedSubject;\n    /**\n     * Emits when the rendered range changes.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._renderedRangeSubject;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._orientation;\n    /**\n     * Emits when the index of the first element visible in the viewport changes.\n     * @type {?}\n     */\n    CdkVirtualScrollViewport.prototype.scrolledIndexChange;\n    /**\n     * The element that wraps the rendered content.\n     * @type {?}\n     */\n    CdkVirtualScrollViewport.prototype._contentWrapper;\n    /**\n     * A stream that emits whenever the rendered range changes.\n     * @type {?}\n     */\n    CdkVirtualScrollViewport.prototype.renderedRangeStream;\n    /**\n     * The total size of all content (in pixels), including content that is not currently rendered.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._totalContentSize;\n    /**\n     * A string representing the `style.width` property value to be used for the spacer element.\n     * @type {?}\n     */\n    CdkVirtualScrollViewport.prototype._totalContentWidth;\n    /**\n     * A string representing the `style.height` property value to be used for the spacer element.\n     * @type {?}\n     */\n    CdkVirtualScrollViewport.prototype._totalContentHeight;\n    /**\n     * The CSS transform applied to the rendered subset of items so that they appear within the bounds\n     * of the visible viewport.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._renderedContentTransform;\n    /**\n     * The currently rendered range of indices.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._renderedRange;\n    /**\n     * The length of the data bound to this viewport (in number of items).\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._dataLength;\n    /**\n     * The size of the viewport (in pixels).\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._viewportSize;\n    /**\n     * the currently attached CdkVirtualForOf.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._forOf;\n    /**\n     * The last rendered content offset that was set.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._renderedContentOffset;\n    /**\n     * Whether the last rendered content offset was to the end of the content (and therefore needs to\n     * be rewritten as an offset to the start of the content).\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._renderedContentOffsetNeedsRewrite;\n    /**\n     * Whether there is a pending change detection cycle.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._isChangeDetectionPending;\n    /**\n     * A list of functions to run after the next change detection cycle.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._runAfterChangeDetection;\n    /**\n     * Subscription to changes in the viewport size.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._viewportChanges;\n    /** @type {?} */\n    CdkVirtualScrollViewport.prototype.elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkVirtualScrollViewport.prototype._scrollStrategy;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/virtual-for-of.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Helper to extract size from a DOM Node.\n * @param {?} orientation\n * @param {?} node\n * @return {?}\n */\nfunction getSize(orientation, node) {\n    /** @type {?} */\n    const el = (/** @type {?} */ (node));\n    if (!el.getBoundingClientRect) {\n        return 0;\n    }\n    /** @type {?} */\n    const rect = el.getBoundingClientRect();\n    return orientation == 'horizontal' ? rect.width : rect.height;\n}\n/**\n * A directive similar to `ngForOf` to be used for rendering data inside a virtual scrolling\n * container.\n * @template T\n */\nclass CdkVirtualForOf {\n    /**\n     * @param {?} _viewContainerRef\n     * @param {?} _template\n     * @param {?} _differs\n     * @param {?} _viewport\n     * @param {?} ngZone\n     */\n    constructor(_viewContainerRef, _template, _differs, _viewport, ngZone) {\n        this._viewContainerRef = _viewContainerRef;\n        this._template = _template;\n        this._differs = _differs;\n        this._viewport = _viewport;\n        /**\n         * Emits when the rendered view of the data changes.\n         */\n        this.viewChange = new Subject();\n        /**\n         * Subject that emits when a new DataSource instance is given.\n         */\n        this._dataSourceChanges = new Subject();\n        /**\n         * The size of the cache used to store templates that are not being used for re-use later.\n         * Setting the cache size to `0` will disable caching. Defaults to 20 templates.\n         */\n        this.cdkVirtualForTemplateCacheSize = 20;\n        /**\n         * Emits whenever the data in the current DataSource changes.\n         */\n        this.dataStream = this._dataSourceChanges\n            .pipe(\n        // Start off with null `DataSource`.\n        startWith((/** @type {?} */ (null))), \n        // Bundle up the previous and current data sources so we can work with both.\n        pairwise(), \n        // Use `_changeDataSource` to disconnect from the previous data source and connect to the\n        // new one, passing back a stream of data changes which we run through `switchMap` to give\n        // us a data stream that emits the latest data from whatever the current `DataSource` is.\n        switchMap((/**\n         * @param {?} __0\n         * @return {?}\n         */\n        ([prev, cur]) => this._changeDataSource(prev, cur))), \n        // Replay the last emitted data when someone subscribes.\n        shareReplay(1));\n        /**\n         * The differ used to calculate changes to the data.\n         */\n        this._differ = null;\n        /**\n         * The template cache used to hold on ot template instancess that have been stamped out, but don't\n         * currently need to be rendered. These instances will be reused in the future rather than\n         * stamping out brand new ones.\n         */\n        this._templateCache = [];\n        /**\n         * Whether the rendered data should be updated during the next ngDoCheck cycle.\n         */\n        this._needsUpdate = false;\n        this._destroyed = new Subject();\n        this.dataStream.subscribe((/**\n         * @param {?} data\n         * @return {?}\n         */\n        data => {\n            this._data = data;\n            this._onRenderedDataChange();\n        }));\n        this._viewport.renderedRangeStream.pipe(takeUntil(this._destroyed)).subscribe((/**\n         * @param {?} range\n         * @return {?}\n         */\n        range => {\n            this._renderedRange = range;\n            ngZone.run((/**\n             * @return {?}\n             */\n            () => this.viewChange.next(this._renderedRange)));\n            this._onRenderedDataChange();\n        }));\n        this._viewport.attach(this);\n    }\n    /**\n     * The DataSource to display.\n     * @return {?}\n     */\n    get cdkVirtualForOf() {\n        return this._cdkVirtualForOf;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set cdkVirtualForOf(value) {\n        this._cdkVirtualForOf = value;\n        if (isDataSource(value)) {\n            this._dataSourceChanges.next(value);\n        }\n        else {\n            // Slice the value if its an NgIterable to ensure we're working with an array.\n            this._dataSourceChanges.next(new ArrayDataSource(isObservable(value) ? value : Array.prototype.slice.call(value || [])));\n        }\n    }\n    /**\n     * The `TrackByFunction` to use for tracking changes. The `TrackByFunction` takes the index and\n     * the item and produces a value to be used as the item's identity when tracking changes.\n     * @return {?}\n     */\n    get cdkVirtualForTrackBy() {\n        return this._cdkVirtualForTrackBy;\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    set cdkVirtualForTrackBy(fn) {\n        this._needsUpdate = true;\n        this._cdkVirtualForTrackBy = fn ?\n            (/**\n             * @param {?} index\n             * @param {?} item\n             * @return {?}\n             */\n            (index, item) => fn(index + (this._renderedRange ? this._renderedRange.start : 0), item)) :\n            undefined;\n    }\n    /**\n     * The template used to stamp out new elements.\n     * @param {?} value\n     * @return {?}\n     */\n    set cdkVirtualForTemplate(value) {\n        if (value) {\n            this._needsUpdate = true;\n            this._template = value;\n        }\n    }\n    /**\n     * Measures the combined size (width for horizontal orientation, height for vertical) of all items\n     * in the specified range. Throws an error if the range includes items that are not currently\n     * rendered.\n     * @param {?} range\n     * @param {?} orientation\n     * @return {?}\n     */\n    measureRangeSize(range, orientation) {\n        if (range.start >= range.end) {\n            return 0;\n        }\n        if (range.start < this._renderedRange.start || range.end > this._renderedRange.end) {\n            throw Error(`Error: attempted to measure an item that isn't rendered.`);\n        }\n        // The index into the list of rendered views for the first item in the range.\n        /** @type {?} */\n        const renderedStartIndex = range.start - this._renderedRange.start;\n        // The length of the range we're measuring.\n        /** @type {?} */\n        const rangeLen = range.end - range.start;\n        // Loop over all root nodes for all items in the range and sum up their size.\n        /** @type {?} */\n        let totalSize = 0;\n        /** @type {?} */\n        let i = rangeLen;\n        while (i--) {\n            /** @type {?} */\n            const view = (/** @type {?} */ (this._viewContainerRef.get(i + renderedStartIndex)));\n            /** @type {?} */\n            let j = view ? view.rootNodes.length : 0;\n            while (j--) {\n                totalSize += getSize(orientation, (/** @type {?} */ (view)).rootNodes[j]);\n            }\n        }\n        return totalSize;\n    }\n    /**\n     * @return {?}\n     */\n    ngDoCheck() {\n        if (this._differ && this._needsUpdate) {\n            // TODO(mmalerba): We should differentiate needs update due to scrolling and a new portion of\n            // this list being rendered (can use simpler algorithm) vs needs update due to data actually\n            // changing (need to do this diff).\n            /** @type {?} */\n            const changes = this._differ.diff(this._renderedItems);\n            if (!changes) {\n                this._updateContext();\n            }\n            else {\n                this._applyChanges(changes);\n            }\n            this._needsUpdate = false;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._viewport.detach();\n        this._dataSourceChanges.next();\n        this._dataSourceChanges.complete();\n        this.viewChange.complete();\n        this._destroyed.next();\n        this._destroyed.complete();\n        for (let view of this._templateCache) {\n            view.destroy();\n        }\n    }\n    /**\n     * React to scroll state changes in the viewport.\n     * @private\n     * @return {?}\n     */\n    _onRenderedDataChange() {\n        if (!this._renderedRange) {\n            return;\n        }\n        this._renderedItems = this._data.slice(this._renderedRange.start, this._renderedRange.end);\n        if (!this._differ) {\n            this._differ = this._differs.find(this._renderedItems).create(this.cdkVirtualForTrackBy);\n        }\n        this._needsUpdate = true;\n    }\n    /**\n     * Swap out one `DataSource` for another.\n     * @private\n     * @param {?} oldDs\n     * @param {?} newDs\n     * @return {?}\n     */\n    _changeDataSource(oldDs, newDs) {\n        if (oldDs) {\n            oldDs.disconnect(this);\n        }\n        this._needsUpdate = true;\n        return newDs ? newDs.connect(this) : of();\n    }\n    /**\n     * Update the `CdkVirtualForOfContext` for all views.\n     * @private\n     * @return {?}\n     */\n    _updateContext() {\n        /** @type {?} */\n        const count = this._data.length;\n        /** @type {?} */\n        let i = this._viewContainerRef.length;\n        while (i--) {\n            /** @type {?} */\n            let view = (/** @type {?} */ (this._viewContainerRef.get(i)));\n            view.context.index = this._renderedRange.start + i;\n            view.context.count = count;\n            this._updateComputedContextProperties(view.context);\n            view.detectChanges();\n        }\n    }\n    /**\n     * Apply changes to the DOM.\n     * @private\n     * @param {?} changes\n     * @return {?}\n     */\n    _applyChanges(changes) {\n        // Rearrange the views to put them in the right location.\n        changes.forEachOperation((/**\n         * @param {?} record\n         * @param {?} adjustedPreviousIndex\n         * @param {?} currentIndex\n         * @return {?}\n         */\n        (record, adjustedPreviousIndex, currentIndex) => {\n            if (record.previousIndex == null) { // Item added.\n                // Item added.\n                /** @type {?} */\n                const view = this._insertViewForNewItem((/** @type {?} */ (currentIndex)));\n                view.context.$implicit = record.item;\n            }\n            else if (currentIndex == null) { // Item removed.\n                this._cacheView(this._detachView((/** @type {?} */ (adjustedPreviousIndex))));\n            }\n            else { // Item moved.\n                // Item moved.\n                /** @type {?} */\n                const view = (/** @type {?} */ (this._viewContainerRef.get((/** @type {?} */ (adjustedPreviousIndex)))));\n                this._viewContainerRef.move(view, currentIndex);\n                view.context.$implicit = record.item;\n            }\n        }));\n        // Update $implicit for any items that had an identity change.\n        changes.forEachIdentityChange((/**\n         * @param {?} record\n         * @return {?}\n         */\n        (record) => {\n            /** @type {?} */\n            const view = (/** @type {?} */ (this._viewContainerRef.get((/** @type {?} */ (record.currentIndex)))));\n            view.context.$implicit = record.item;\n        }));\n        // Update the context variables on all items.\n        /** @type {?} */\n        const count = this._data.length;\n        /** @type {?} */\n        let i = this._viewContainerRef.length;\n        while (i--) {\n            /** @type {?} */\n            const view = (/** @type {?} */ (this._viewContainerRef.get(i)));\n            view.context.index = this._renderedRange.start + i;\n            view.context.count = count;\n            this._updateComputedContextProperties(view.context);\n        }\n    }\n    /**\n     * Cache the given detached view.\n     * @private\n     * @param {?} view\n     * @return {?}\n     */\n    _cacheView(view) {\n        if (this._templateCache.length < this.cdkVirtualForTemplateCacheSize) {\n            this._templateCache.push(view);\n        }\n        else {\n            /** @type {?} */\n            const index = this._viewContainerRef.indexOf(view);\n            // It's very unlikely that the index will ever be -1, but just in case,\n            // destroy the view on its own, otherwise destroy it through the\n            // container to ensure that all the references are removed.\n            if (index === -1) {\n                view.destroy();\n            }\n            else {\n                this._viewContainerRef.remove(index);\n            }\n        }\n    }\n    /**\n     * Inserts a view for a new item, either from the cache or by creating a new one.\n     * @private\n     * @param {?} index\n     * @return {?}\n     */\n    _insertViewForNewItem(index) {\n        return this._insertViewFromCache(index) || this._createEmbeddedViewAt(index);\n    }\n    /**\n     * Update the computed properties on the `CdkVirtualForOfContext`.\n     * @private\n     * @param {?} context\n     * @return {?}\n     */\n    _updateComputedContextProperties(context) {\n        context.first = context.index === 0;\n        context.last = context.index === context.count - 1;\n        context.even = context.index % 2 === 0;\n        context.odd = !context.even;\n    }\n    /**\n     * Creates a new embedded view and moves it to the given index\n     * @private\n     * @param {?} index\n     * @return {?}\n     */\n    _createEmbeddedViewAt(index) {\n        // Note that it's important that we insert the item directly at the proper index,\n        // rather than inserting it and the moving it in place, because if there's a directive\n        // on the same node that injects the `ViewContainerRef`, Angular will insert another\n        // comment node which can throw off the move when it's being repeated for all items.\n        return this._viewContainerRef.createEmbeddedView(this._template, {\n            $implicit: (/** @type {?} */ (null)),\n            // It's guaranteed that the iterable is not \"undefined\" or \"null\" because we only\n            // generate views for elements if the \"cdkVirtualForOf\" iterable has elements.\n            cdkVirtualForOf: (/** @type {?} */ (this._cdkVirtualForOf)),\n            index: -1,\n            count: -1,\n            first: false,\n            last: false,\n            odd: false,\n            even: false\n        }, index);\n    }\n    /**\n     * Inserts a recycled view from the cache at the given index.\n     * @private\n     * @param {?} index\n     * @return {?}\n     */\n    _insertViewFromCache(index) {\n        /** @type {?} */\n        const cachedView = this._templateCache.pop();\n        if (cachedView) {\n            this._viewContainerRef.insert(cachedView, index);\n        }\n        return cachedView || null;\n    }\n    /**\n     * Detaches the embedded view at the given index.\n     * @private\n     * @param {?} index\n     * @return {?}\n     */\n    _detachView(index) {\n        return (/** @type {?} */ (this._viewContainerRef.detach(index)));\n    }\n}\nCdkVirtualForOf.ɵfac = function CdkVirtualForOf_Factory(t) { return new (t || CdkVirtualForOf)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.IterableDiffers), ɵngcc0.ɵɵdirectiveInject(CdkVirtualScrollViewport, 4), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone)); };\nCdkVirtualForOf.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkVirtualForOf, selectors: [[\"\", \"cdkVirtualFor\", \"\", \"cdkVirtualForOf\", \"\"]], inputs: { cdkVirtualForTemplateCacheSize: \"cdkVirtualForTemplateCacheSize\", cdkVirtualForOf: \"cdkVirtualForOf\", cdkVirtualForTrackBy: \"cdkVirtualForTrackBy\", cdkVirtualForTemplate: \"cdkVirtualForTemplate\" } });\n/** @nocollapse */\nCdkVirtualForOf.ctorParameters = () => [\n    { type: ViewContainerRef },\n    { type: TemplateRef },\n    { type: IterableDiffers },\n    { type: CdkVirtualScrollViewport, decorators: [{ type: SkipSelf }] },\n    { type: NgZone }\n];\nCdkVirtualForOf.propDecorators = {\n    cdkVirtualForOf: [{ type: Input }],\n    cdkVirtualForTrackBy: [{ type: Input }],\n    cdkVirtualForTemplate: [{ type: Input }],\n    cdkVirtualForTemplateCacheSize: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkVirtualForOf, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkVirtualFor][cdkVirtualForOf]'\n            }]\n    }], function () { return [{ type: ɵngcc0.ViewContainerRef }, { type: ɵngcc0.TemplateRef }, { type: ɵngcc0.IterableDiffers }, { type: CdkVirtualScrollViewport, decorators: [{\n                type: SkipSelf\n            }] }, { type: ɵngcc0.NgZone }]; }, { cdkVirtualForTemplateCacheSize: [{\n            type: Input\n        }], cdkVirtualForOf: [{\n            type: Input\n        }], cdkVirtualForTrackBy: [{\n            type: Input\n        }], cdkVirtualForTemplate: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * Emits when the rendered view of the data changes.\n     * @type {?}\n     */\n    CdkVirtualForOf.prototype.viewChange;\n    /**\n     * Subject that emits when a new DataSource instance is given.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._dataSourceChanges;\n    /** @type {?} */\n    CdkVirtualForOf.prototype._cdkVirtualForOf;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._cdkVirtualForTrackBy;\n    /**\n     * The size of the cache used to store templates that are not being used for re-use later.\n     * Setting the cache size to `0` will disable caching. Defaults to 20 templates.\n     * @type {?}\n     */\n    CdkVirtualForOf.prototype.cdkVirtualForTemplateCacheSize;\n    /**\n     * Emits whenever the data in the current DataSource changes.\n     * @type {?}\n     */\n    CdkVirtualForOf.prototype.dataStream;\n    /**\n     * The differ used to calculate changes to the data.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._differ;\n    /**\n     * The most recent data emitted from the DataSource.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._data;\n    /**\n     * The currently rendered items.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._renderedItems;\n    /**\n     * The currently rendered range of indices.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._renderedRange;\n    /**\n     * The template cache used to hold on ot template instancess that have been stamped out, but don't\n     * currently need to be rendered. These instances will be reused in the future rather than\n     * stamping out brand new ones.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._templateCache;\n    /**\n     * Whether the rendered data should be updated during the next ngDoCheck cycle.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._needsUpdate;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._destroyed;\n    /**\n     * The view container to add items to.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._viewContainerRef;\n    /**\n     * The template to use when stamping out new items.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._template;\n    /**\n     * The set of available differs.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._differs;\n    /**\n     * The virtual scrolling viewport that these items are being rendered in.\n     * @type {?}\n     * @private\n     */\n    CdkVirtualForOf.prototype._viewport;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/scrolling-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass CdkScrollableModule {\n}\nCdkScrollableModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: CdkScrollableModule });\nCdkScrollableModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function CdkScrollableModule_Factory(t) { return new (t || CdkScrollableModule)(); } });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(CdkScrollableModule, { declarations: [CdkScrollable], exports: [CdkScrollable] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkScrollableModule, [{\n        type: NgModule,\n        args: [{\n                exports: [CdkScrollable],\n                declarations: [CdkScrollable]\n            }]\n    }], null, null); })();\nclass ScrollingModule {\n}\nScrollingModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: ScrollingModule });\nScrollingModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function ScrollingModule_Factory(t) { return new (t || ScrollingModule)(); }, imports: [[\n            BidiModule,\n            PlatformModule,\n            CdkScrollableModule\n        ], BidiModule, CdkScrollableModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(ScrollingModule, { declarations: function () { return [CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport]; }, imports: function () { return [BidiModule,\n        PlatformModule, CdkScrollableModule]; }, exports: function () { return [BidiModule, CdkScrollableModule, CdkFixedSizeVirtualScroll, CdkVirtualForOf, CdkVirtualScrollViewport]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ScrollingModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    BidiModule,\n                    PlatformModule,\n                    CdkScrollableModule\n                ],\n                exports: [\n                    BidiModule,\n                    CdkScrollableModule,\n                    CdkFixedSizeVirtualScroll,\n                    CdkVirtualForOf,\n                    CdkVirtualScrollViewport,\n                ],\n                declarations: [\n                    CdkFixedSizeVirtualScroll,\n                    CdkVirtualForOf,\n                    CdkVirtualScrollViewport,\n                ]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/scrolling/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { CdkFixedSizeVirtualScroll, CdkScrollable, CdkScrollableModule, CdkVirtualForOf, CdkVirtualScrollViewport, DEFAULT_RESIZE_TIME, DEFAULT_SCROLL_TIME, FixedSizeVirtualScrollStrategy, ScrollDispatcher, ScrollingModule, VIRTUAL_SCROLL_STRATEGY, ViewportRuler, _fixedSizeVirtualScrollStrategyFactory };\n\n//# sourceMappingURL=scrolling.js.map","import { isObservable, of, Subject } from 'rxjs';\nimport { Injectable, ɵɵdefineInjectable } from '@angular/core';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/collections/data-source.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * @abstract\n * @template T\n */\nimport * as ɵngcc0 from '@angular/core';\nclass DataSource {\n}\nif (false) {\n    /**\n     * Connects a collection viewer (such as a data-table) to this data source. Note that\n     * the stream provided will be accessed during change detection and should not directly change\n     * values that are bound in template views.\n     * @abstract\n     * @param {?} collectionViewer The component that exposes a view over the data provided by this\n     *     data source.\n     * @return {?} Observable that emits a new value when the data changes.\n     */\n    DataSource.prototype.connect = function (collectionViewer) { };\n    /**\n     * Disconnects a collection viewer (such as a data-table) from this data source. Can be used\n     * to perform any clean-up or tear-down operations when a view is being destroyed.\n     *\n     * @abstract\n     * @param {?} collectionViewer The component that exposes a view over the data provided by this\n     *     data source.\n     * @return {?}\n     */\n    DataSource.prototype.disconnect = function (collectionViewer) { };\n}\n/**\n * Checks whether an object is a data source.\n * @param {?} value\n * @return {?}\n */\nfunction isDataSource(value) {\n    // Check if the value is a DataSource by observing if it has a connect function. Cannot\n    // be checked as an `instanceof DataSource` since people could create their own sources\n    // that match the interface, but don't extend DataSource.\n    return value && typeof value.connect === 'function';\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/collections/array-data-source.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * DataSource wrapper for a native array.\n * @template T\n */\nclass ArrayDataSource extends DataSource {\n    /**\n     * @param {?} _data\n     */\n    constructor(_data) {\n        super();\n        this._data = _data;\n    }\n    /**\n     * @return {?}\n     */\n    connect() {\n        return isObservable(this._data) ? this._data : of(this._data);\n    }\n    /**\n     * @return {?}\n     */\n    disconnect() { }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ArrayDataSource.prototype._data;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/collections/collection-viewer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Interface for any component that provides a view of some data collection and wants to provide\n * information regarding the view and any changes made.\n * @record\n */\nfunction CollectionViewer() { }\nif (false) {\n    /**\n     * A stream that emits whenever the `CollectionViewer` starts looking at a new portion of the\n     * data. The `start` index is inclusive, while the `end` is exclusive.\n     * @type {?}\n     */\n    CollectionViewer.prototype.viewChange;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/collections/selection-model.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Class to be used to power selecting one or more options from a list.\n * @template T\n */\nclass SelectionModel {\n    /**\n     * @param {?=} _multiple\n     * @param {?=} initiallySelectedValues\n     * @param {?=} _emitChanges\n     */\n    constructor(_multiple = false, initiallySelectedValues, _emitChanges = true) {\n        this._multiple = _multiple;\n        this._emitChanges = _emitChanges;\n        /**\n         * Currently-selected values.\n         */\n        this._selection = new Set();\n        /**\n         * Keeps track of the deselected options that haven't been emitted by the change event.\n         */\n        this._deselectedToEmit = [];\n        /**\n         * Keeps track of the selected options that haven't been emitted by the change event.\n         */\n        this._selectedToEmit = [];\n        /**\n         * Event emitted when the value has changed.\n         */\n        this.changed = new Subject();\n        if (initiallySelectedValues && initiallySelectedValues.length) {\n            if (_multiple) {\n                initiallySelectedValues.forEach((/**\n                 * @param {?} value\n                 * @return {?}\n                 */\n                value => this._markSelected(value)));\n            }\n            else {\n                this._markSelected(initiallySelectedValues[0]);\n            }\n            // Clear the array in order to avoid firing the change event for preselected values.\n            this._selectedToEmit.length = 0;\n        }\n    }\n    /**\n     * Selected values.\n     * @return {?}\n     */\n    get selected() {\n        if (!this._selected) {\n            this._selected = Array.from(this._selection.values());\n        }\n        return this._selected;\n    }\n    /**\n     * Selects a value or an array of values.\n     * @param {...?} values\n     * @return {?}\n     */\n    select(...values) {\n        this._verifyValueAssignment(values);\n        values.forEach((/**\n         * @param {?} value\n         * @return {?}\n         */\n        value => this._markSelected(value)));\n        this._emitChangeEvent();\n    }\n    /**\n     * Deselects a value or an array of values.\n     * @param {...?} values\n     * @return {?}\n     */\n    deselect(...values) {\n        this._verifyValueAssignment(values);\n        values.forEach((/**\n         * @param {?} value\n         * @return {?}\n         */\n        value => this._unmarkSelected(value)));\n        this._emitChangeEvent();\n    }\n    /**\n     * Toggles a value between selected and deselected.\n     * @param {?} value\n     * @return {?}\n     */\n    toggle(value) {\n        this.isSelected(value) ? this.deselect(value) : this.select(value);\n    }\n    /**\n     * Clears all of the selected values.\n     * @return {?}\n     */\n    clear() {\n        this._unmarkAll();\n        this._emitChangeEvent();\n    }\n    /**\n     * Determines whether a value is selected.\n     * @param {?} value\n     * @return {?}\n     */\n    isSelected(value) {\n        return this._selection.has(value);\n    }\n    /**\n     * Determines whether the model does not have a value.\n     * @return {?}\n     */\n    isEmpty() {\n        return this._selection.size === 0;\n    }\n    /**\n     * Determines whether the model has a value.\n     * @return {?}\n     */\n    hasValue() {\n        return !this.isEmpty();\n    }\n    /**\n     * Sorts the selected values based on a predicate function.\n     * @param {?=} predicate\n     * @return {?}\n     */\n    sort(predicate) {\n        if (this._multiple && this.selected) {\n            (/** @type {?} */ (this._selected)).sort(predicate);\n        }\n    }\n    /**\n     * Gets whether multiple values can be selected.\n     * @return {?}\n     */\n    isMultipleSelection() {\n        return this._multiple;\n    }\n    /**\n     * Emits a change event and clears the records of selected and deselected values.\n     * @private\n     * @return {?}\n     */\n    _emitChangeEvent() {\n        // Clear the selected values so they can be re-cached.\n        this._selected = null;\n        if (this._selectedToEmit.length || this._deselectedToEmit.length) {\n            this.changed.next({\n                source: this,\n                added: this._selectedToEmit,\n                removed: this._deselectedToEmit\n            });\n            this._deselectedToEmit = [];\n            this._selectedToEmit = [];\n        }\n    }\n    /**\n     * Selects a value.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _markSelected(value) {\n        if (!this.isSelected(value)) {\n            if (!this._multiple) {\n                this._unmarkAll();\n            }\n            this._selection.add(value);\n            if (this._emitChanges) {\n                this._selectedToEmit.push(value);\n            }\n        }\n    }\n    /**\n     * Deselects a value.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _unmarkSelected(value) {\n        if (this.isSelected(value)) {\n            this._selection.delete(value);\n            if (this._emitChanges) {\n                this._deselectedToEmit.push(value);\n            }\n        }\n    }\n    /**\n     * Clears out the selected values.\n     * @private\n     * @return {?}\n     */\n    _unmarkAll() {\n        if (!this.isEmpty()) {\n            this._selection.forEach((/**\n             * @param {?} value\n             * @return {?}\n             */\n            value => this._unmarkSelected(value)));\n        }\n    }\n    /**\n     * Verifies the value assignment and throws an error if the specified value array is\n     * including multiple values while the selection model is not supporting multiple values.\n     * @private\n     * @param {?} values\n     * @return {?}\n     */\n    _verifyValueAssignment(values) {\n        if (values.length > 1 && !this._multiple) {\n            throw getMultipleValuesInSingleSelectionError();\n        }\n    }\n}\nif (false) {\n    /**\n     * Currently-selected values.\n     * @type {?}\n     * @private\n     */\n    SelectionModel.prototype._selection;\n    /**\n     * Keeps track of the deselected options that haven't been emitted by the change event.\n     * @type {?}\n     * @private\n     */\n    SelectionModel.prototype._deselectedToEmit;\n    /**\n     * Keeps track of the selected options that haven't been emitted by the change event.\n     * @type {?}\n     * @private\n     */\n    SelectionModel.prototype._selectedToEmit;\n    /**\n     * Cache for the array value of the selected items.\n     * @type {?}\n     * @private\n     */\n    SelectionModel.prototype._selected;\n    /**\n     * Event emitted when the value has changed.\n     * @type {?}\n     */\n    SelectionModel.prototype.changed;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectionModel.prototype._multiple;\n    /**\n     * @type {?}\n     * @private\n     */\n    SelectionModel.prototype._emitChanges;\n}\n/**\n * Event emitted when the value of a MatSelectionModel has changed.\n * \\@docs-private\n * @record\n * @template T\n */\nfunction SelectionChange() { }\nif (false) {\n    /**\n     * Model that dispatched the event.\n     * @type {?}\n     */\n    SelectionChange.prototype.source;\n    /**\n     * Options that were added to the model.\n     * @type {?}\n     */\n    SelectionChange.prototype.added;\n    /**\n     * Options that were removed from the model.\n     * @type {?}\n     */\n    SelectionChange.prototype.removed;\n}\n/**\n * Returns an error that reports that multiple values are passed into a selection model\n * with a single value.\n * \\@docs-private\n * @return {?}\n */\nfunction getMultipleValuesInSingleSelectionError() {\n    return Error('Cannot pass multiple values into SelectionModel with single-value mode.');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/collections/unique-selection-dispatcher.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Class to coordinate unique selection based on name.\n * Intended to be consumed as an Angular service.\n * This service is needed because native radio change events are only fired on the item currently\n * being selected, and we still need to uncheck the previous selection.\n *\n * This service does not *store* any IDs and names because they may change at any time, so it is\n * less error-prone if they are simply passed through when the events occur.\n */\nclass UniqueSelectionDispatcher {\n    constructor() {\n        this._listeners = [];\n    }\n    /**\n     * Notify other items that selection for the given name has been set.\n     * @param {?} id ID of the item.\n     * @param {?} name Name of the item.\n     * @return {?}\n     */\n    notify(id, name) {\n        for (let listener of this._listeners) {\n            listener(id, name);\n        }\n    }\n    /**\n     * Listen for future changes to item selection.\n     * @param {?} listener\n     * @return {?} Function used to deregister listener\n     */\n    listen(listener) {\n        this._listeners.push(listener);\n        return (/**\n         * @return {?}\n         */\n        () => {\n            this._listeners = this._listeners.filter((/**\n             * @param {?} registered\n             * @return {?}\n             */\n            (registered) => {\n                return listener !== registered;\n            }));\n        });\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._listeners = [];\n    }\n}\nUniqueSelectionDispatcher.ɵfac = function UniqueSelectionDispatcher_Factory(t) { return new (t || UniqueSelectionDispatcher)(); };\n/** @nocollapse */ UniqueSelectionDispatcher.ɵprov = ɵɵdefineInjectable({ factory: function UniqueSelectionDispatcher_Factory() { return new UniqueSelectionDispatcher(); }, token: UniqueSelectionDispatcher, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(UniqueSelectionDispatcher, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    UniqueSelectionDispatcher.prototype._listeners;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/collections/tree-adapter.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Interface for a class that can flatten hierarchical structured data and re-expand the flattened\n * data back into its original structure. Should be used in conjunction with the cdk-tree.\n * @record\n * @template T\n */\nfunction TreeDataNodeFlattener() { }\nif (false) {\n    /**\n     * Transforms a set of hierarchical structured data into a flattened data array.\n     * @param {?} structuredData\n     * @return {?}\n     */\n    TreeDataNodeFlattener.prototype.flattenNodes = function (structuredData) { };\n    /**\n     * Expands a flattened array of data into its hierarchical form using the provided expansion\n     * model.\n     * @param {?} nodes\n     * @param {?} expansionModel\n     * @return {?}\n     */\n    TreeDataNodeFlattener.prototype.expandFlattenedNodes = function (nodes, expansionModel) { };\n    /**\n     * Put node descendants of node in array.\n     * If `onlyExpandable` is true, then only process expandable descendants.\n     * @param {?} node\n     * @param {?} nodes\n     * @param {?} onlyExpandable\n     * @return {?}\n     */\n    TreeDataNodeFlattener.prototype.nodeDescendents = function (node, nodes, onlyExpandable) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/collections/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ArrayDataSource, DataSource, SelectionModel, UniqueSelectionDispatcher, getMultipleValuesInSingleSelectionError, isDataSource };\n\n//# sourceMappingURL=collections.js.map","import { ElementRef, Directive, TemplateRef, ViewContainerRef, EventEmitter, ComponentFactoryResolver, Inject, Output, NgModule } from '@angular/core';\nimport { DOCUMENT } from '@angular/common';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/portal/portal-errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Throws an exception when attempting to attach a null portal to a host.\n * \\@docs-private\n * @return {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nfunction throwNullPortalError() {\n    throw Error('Must provide a portal to attach');\n}\n/**\n * Throws an exception when attempting to attach a portal to a host that is already attached.\n * \\@docs-private\n * @return {?}\n */\nfunction throwPortalAlreadyAttachedError() {\n    throw Error('Host already has a portal attached');\n}\n/**\n * Throws an exception when attempting to attach a portal to an already-disposed host.\n * \\@docs-private\n * @return {?}\n */\nfunction throwPortalOutletAlreadyDisposedError() {\n    throw Error('This PortalOutlet has already been disposed');\n}\n/**\n * Throws an exception when attempting to attach an unknown portal type.\n * \\@docs-private\n * @return {?}\n */\nfunction throwUnknownPortalTypeError() {\n    throw Error('Attempting to attach an unknown Portal type. BasePortalOutlet accepts either ' +\n        'a ComponentPortal or a TemplatePortal.');\n}\n/**\n * Throws an exception when attempting to attach a portal to a null host.\n * \\@docs-private\n * @return {?}\n */\nfunction throwNullPortalOutletError() {\n    throw Error('Attempting to attach a portal to a null PortalOutlet');\n}\n/**\n * Throws an exception when attempting to detach a portal that is not attached.\n * \\@docs-private\n * @return {?}\n */\nfunction throwNoPortalAttachedError() {\n    throw Error('Attempting to detach a portal that is not attached to a host');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/portal/portal.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Interface that can be used to generically type a class.\n * @record\n * @template T\n */\nfunction ComponentType() { }\n/**\n * A `Portal` is something that you want to render somewhere else.\n * It can be attach to / detached from a `PortalOutlet`.\n * @abstract\n * @template T\n */\nclass Portal {\n    /**\n     * Attach this portal to a host.\n     * @param {?} host\n     * @return {?}\n     */\n    attach(host) {\n        if (host == null) {\n            throwNullPortalOutletError();\n        }\n        if (host.hasAttached()) {\n            throwPortalAlreadyAttachedError();\n        }\n        this._attachedHost = host;\n        return (/** @type {?} */ (host.attach(this)));\n    }\n    /**\n     * Detach this portal from its host\n     * @return {?}\n     */\n    detach() {\n        /** @type {?} */\n        let host = this._attachedHost;\n        if (host == null) {\n            throwNoPortalAttachedError();\n        }\n        else {\n            this._attachedHost = null;\n            host.detach();\n        }\n    }\n    /**\n     * Whether this portal is attached to a host.\n     * @return {?}\n     */\n    get isAttached() {\n        return this._attachedHost != null;\n    }\n    /**\n     * Sets the PortalOutlet reference without performing `attach()`. This is used directly by\n     * the PortalOutlet when it is performing an `attach()` or `detach()`.\n     * @param {?} host\n     * @return {?}\n     */\n    setAttachedHost(host) {\n        this._attachedHost = host;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    Portal.prototype._attachedHost;\n}\n/**\n * A `ComponentPortal` is a portal that instantiates some Component upon attachment.\n * @template T\n */\nclass ComponentPortal extends Portal {\n    /**\n     * @param {?} component\n     * @param {?=} viewContainerRef\n     * @param {?=} injector\n     * @param {?=} componentFactoryResolver\n     */\n    constructor(component, viewContainerRef, injector, componentFactoryResolver) {\n        super();\n        this.component = component;\n        this.viewContainerRef = viewContainerRef;\n        this.injector = injector;\n        this.componentFactoryResolver = componentFactoryResolver;\n    }\n}\nif (false) {\n    /**\n     * The type of the component that will be instantiated for attachment.\n     * @type {?}\n     */\n    ComponentPortal.prototype.component;\n    /**\n     * [Optional] Where the attached component should live in Angular's *logical* component tree.\n     * This is different from where the component *renders*, which is determined by the PortalOutlet.\n     * The origin is necessary when the host is outside of the Angular application context.\n     * @type {?}\n     */\n    ComponentPortal.prototype.viewContainerRef;\n    /**\n     * [Optional] Injector used for the instantiation of the component.\n     * @type {?}\n     */\n    ComponentPortal.prototype.injector;\n    /**\n     * Alternate `ComponentFactoryResolver` to use when resolving the associated component.\n     * Defaults to using the resolver from the outlet that the portal is attached to.\n     * @type {?}\n     */\n    ComponentPortal.prototype.componentFactoryResolver;\n}\n/**\n * A `TemplatePortal` is a portal that represents some embedded template (TemplateRef).\n * @template C\n */\nclass TemplatePortal extends Portal {\n    /**\n     * @param {?} template\n     * @param {?} viewContainerRef\n     * @param {?=} context\n     */\n    constructor(template, viewContainerRef, context) {\n        super();\n        this.templateRef = template;\n        this.viewContainerRef = viewContainerRef;\n        this.context = context;\n    }\n    /**\n     * @return {?}\n     */\n    get origin() {\n        return this.templateRef.elementRef;\n    }\n    /**\n     * Attach the portal to the provided `PortalOutlet`.\n     * When a context is provided it will override the `context` property of the `TemplatePortal`\n     * instance.\n     * @param {?} host\n     * @param {?=} context\n     * @return {?}\n     */\n    attach(host, context = this.context) {\n        this.context = context;\n        return super.attach(host);\n    }\n    /**\n     * @return {?}\n     */\n    detach() {\n        this.context = undefined;\n        return super.detach();\n    }\n}\nif (false) {\n    /**\n     * The embedded template that will be used to instantiate an embedded View in the host.\n     * @type {?}\n     */\n    TemplatePortal.prototype.templateRef;\n    /**\n     * Reference to the ViewContainer into which the template will be stamped out.\n     * @type {?}\n     */\n    TemplatePortal.prototype.viewContainerRef;\n    /**\n     * Contextual data to be passed in to the embedded view.\n     * @type {?}\n     */\n    TemplatePortal.prototype.context;\n}\n/**\n * A `DomPortal` is a portal whose DOM element will be taken from its current position\n * in the DOM and moved into a portal outlet, when it is attached. On detach, the content\n * will be restored to its original position.\n * @template T\n */\nclass DomPortal extends Portal {\n    /**\n     * @param {?} element\n     */\n    constructor(element) {\n        super();\n        this.element = element instanceof ElementRef ? element.nativeElement : element;\n    }\n}\nif (false) {\n    /**\n     * DOM node hosting the portal's content.\n     * @type {?}\n     */\n    DomPortal.prototype.element;\n}\n/**\n * A `PortalOutlet` is an space that can contain a single `Portal`.\n * @record\n */\nfunction PortalOutlet() { }\nif (false) {\n    /**\n     * Attaches a portal to this outlet.\n     * @param {?} portal\n     * @return {?}\n     */\n    PortalOutlet.prototype.attach = function (portal) { };\n    /**\n     * Detaches the currently attached portal from this outlet.\n     * @return {?}\n     */\n    PortalOutlet.prototype.detach = function () { };\n    /**\n     * Performs cleanup before the outlet is destroyed.\n     * @return {?}\n     */\n    PortalOutlet.prototype.dispose = function () { };\n    /**\n     * Whether there is currently a portal attached to this outlet.\n     * @return {?}\n     */\n    PortalOutlet.prototype.hasAttached = function () { };\n}\n/**\n * Partial implementation of PortalOutlet that handles attaching\n * ComponentPortal and TemplatePortal.\n * @abstract\n */\nclass BasePortalOutlet {\n    constructor() {\n        /**\n         * Whether this host has already been permanently disposed.\n         */\n        this._isDisposed = false;\n        // @breaking-change 10.0.0 `attachDomPortal` to become a required abstract method.\n        this.attachDomPortal = null;\n    }\n    /**\n     * Whether this host has an attached portal.\n     * @return {?}\n     */\n    hasAttached() {\n        return !!this._attachedPortal;\n    }\n    /**\n     * Attaches a portal.\n     * @param {?} portal\n     * @return {?}\n     */\n    attach(portal) {\n        if (!portal) {\n            throwNullPortalError();\n        }\n        if (this.hasAttached()) {\n            throwPortalAlreadyAttachedError();\n        }\n        if (this._isDisposed) {\n            throwPortalOutletAlreadyDisposedError();\n        }\n        if (portal instanceof ComponentPortal) {\n            this._attachedPortal = portal;\n            return this.attachComponentPortal(portal);\n        }\n        else if (portal instanceof TemplatePortal) {\n            this._attachedPortal = portal;\n            return this.attachTemplatePortal(portal);\n            // @breaking-change 10.0.0 remove null check for `this.attachDomPortal`.\n        }\n        else if (this.attachDomPortal && portal instanceof DomPortal) {\n            this._attachedPortal = portal;\n            return this.attachDomPortal(portal);\n        }\n        throwUnknownPortalTypeError();\n    }\n    /**\n     * Detaches a previously attached portal.\n     * @return {?}\n     */\n    detach() {\n        if (this._attachedPortal) {\n            this._attachedPortal.setAttachedHost(null);\n            this._attachedPortal = null;\n        }\n        this._invokeDisposeFn();\n    }\n    /**\n     * Permanently dispose of this portal host.\n     * @return {?}\n     */\n    dispose() {\n        if (this.hasAttached()) {\n            this.detach();\n        }\n        this._invokeDisposeFn();\n        this._isDisposed = true;\n    }\n    /**\n     * \\@docs-private\n     * @param {?} fn\n     * @return {?}\n     */\n    setDisposeFn(fn) {\n        this._disposeFn = fn;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _invokeDisposeFn() {\n        if (this._disposeFn) {\n            this._disposeFn();\n            this._disposeFn = null;\n        }\n    }\n}\nif (false) {\n    /**\n     * The portal currently attached to the host.\n     * @type {?}\n     * @protected\n     */\n    BasePortalOutlet.prototype._attachedPortal;\n    /**\n     * A function that will permanently dispose this host.\n     * @type {?}\n     * @private\n     */\n    BasePortalOutlet.prototype._disposeFn;\n    /**\n     * Whether this host has already been permanently disposed.\n     * @type {?}\n     * @private\n     */\n    BasePortalOutlet.prototype._isDisposed;\n    /** @type {?} */\n    BasePortalOutlet.prototype.attachDomPortal;\n    /**\n     * @abstract\n     * @template T\n     * @param {?} portal\n     * @return {?}\n     */\n    BasePortalOutlet.prototype.attachComponentPortal = function (portal) { };\n    /**\n     * @abstract\n     * @template C\n     * @param {?} portal\n     * @return {?}\n     */\n    BasePortalOutlet.prototype.attachTemplatePortal = function (portal) { };\n}\n/**\n * @deprecated Use `BasePortalOutlet` instead.\n * \\@breaking-change 9.0.0\n * @abstract\n */\nclass BasePortalHost extends BasePortalOutlet {\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/portal/dom-portal-outlet.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A PortalOutlet for attaching portals to an arbitrary DOM element outside of the Angular\n * application context.\n */\nclass DomPortalOutlet extends BasePortalOutlet {\n    /**\n     * @param {?} outletElement\n     * @param {?} _componentFactoryResolver\n     * @param {?} _appRef\n     * @param {?} _defaultInjector\n     * @param {?=} _document\n     */\n    constructor(outletElement, _componentFactoryResolver, _appRef, _defaultInjector, \n    /**\n     * @deprecated `_document` Parameter to be made required.\n     * @breaking-change 10.0.0\n     */\n    _document) {\n        super();\n        this.outletElement = outletElement;\n        this._componentFactoryResolver = _componentFactoryResolver;\n        this._appRef = _appRef;\n        this._defaultInjector = _defaultInjector;\n        /**\n         * Attaches a DOM portal by transferring its content into the outlet.\n         * @param portal Portal to be attached.\n         * @deprecated To be turned into a method.\n         * \\@breaking-change 10.0.0\n         */\n        this.attachDomPortal = (/**\n         * @param {?} portal\n         * @return {?}\n         */\n        (portal) => {\n            // @breaking-change 10.0.0 Remove check and error once the\n            // `_document` constructor parameter is required.\n            if (!this._document) {\n                throw Error('Cannot attach DOM portal without _document constructor parameter');\n            }\n            /** @type {?} */\n            const element = portal.element;\n            if (!element.parentNode) {\n                throw Error('DOM portal content must be attached to a parent node.');\n            }\n            // Anchor used to save the element's previous position so\n            // that we can restore it when the portal is detached.\n            /** @type {?} */\n            const anchorNode = this._document.createComment('dom-portal');\n            element.parentNode.insertBefore(anchorNode, element);\n            this.outletElement.appendChild(element);\n            super.setDisposeFn((/**\n             * @return {?}\n             */\n            () => {\n                // We can't use `replaceWith` here because IE doesn't support it.\n                if (anchorNode.parentNode) {\n                    anchorNode.parentNode.replaceChild(element, anchorNode);\n                }\n            }));\n        });\n        this._document = _document;\n    }\n    /**\n     * Attach the given ComponentPortal to DOM element using the ComponentFactoryResolver.\n     * @template T\n     * @param {?} portal Portal to be attached\n     * @return {?} Reference to the created component.\n     */\n    attachComponentPortal(portal) {\n        /** @type {?} */\n        const resolver = portal.componentFactoryResolver || this._componentFactoryResolver;\n        /** @type {?} */\n        const componentFactory = resolver.resolveComponentFactory(portal.component);\n        /** @type {?} */\n        let componentRef;\n        // If the portal specifies a ViewContainerRef, we will use that as the attachment point\n        // for the component (in terms of Angular's component tree, not rendering).\n        // When the ViewContainerRef is missing, we use the factory to create the component directly\n        // and then manually attach the view to the application.\n        if (portal.viewContainerRef) {\n            componentRef = portal.viewContainerRef.createComponent(componentFactory, portal.viewContainerRef.length, portal.injector || portal.viewContainerRef.injector);\n            this.setDisposeFn((/**\n             * @return {?}\n             */\n            () => componentRef.destroy()));\n        }\n        else {\n            componentRef = componentFactory.create(portal.injector || this._defaultInjector);\n            this._appRef.attachView(componentRef.hostView);\n            this.setDisposeFn((/**\n             * @return {?}\n             */\n            () => {\n                this._appRef.detachView(componentRef.hostView);\n                componentRef.destroy();\n            }));\n        }\n        // At this point the component has been instantiated, so we move it to the location in the DOM\n        // where we want it to be rendered.\n        this.outletElement.appendChild(this._getComponentRootNode(componentRef));\n        return componentRef;\n    }\n    /**\n     * Attaches a template portal to the DOM as an embedded view.\n     * @template C\n     * @param {?} portal Portal to be attached.\n     * @return {?} Reference to the created embedded view.\n     */\n    attachTemplatePortal(portal) {\n        /** @type {?} */\n        let viewContainer = portal.viewContainerRef;\n        /** @type {?} */\n        let viewRef = viewContainer.createEmbeddedView(portal.templateRef, portal.context);\n        viewRef.detectChanges();\n        // The method `createEmbeddedView` will add the view as a child of the viewContainer.\n        // But for the DomPortalOutlet the view can be added everywhere in the DOM\n        // (e.g Overlay Container) To move the view to the specified host element. We just\n        // re-append the existing root nodes.\n        viewRef.rootNodes.forEach((/**\n         * @param {?} rootNode\n         * @return {?}\n         */\n        rootNode => this.outletElement.appendChild(rootNode)));\n        this.setDisposeFn(((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            let index = viewContainer.indexOf(viewRef);\n            if (index !== -1) {\n                viewContainer.remove(index);\n            }\n        })));\n        // TODO(jelbourn): Return locals from view.\n        return viewRef;\n    }\n    /**\n     * Clears out a portal from the DOM.\n     * @return {?}\n     */\n    dispose() {\n        super.dispose();\n        if (this.outletElement.parentNode != null) {\n            this.outletElement.parentNode.removeChild(this.outletElement);\n        }\n    }\n    /**\n     * Gets the root HTMLElement for an instantiated component.\n     * @private\n     * @param {?} componentRef\n     * @return {?}\n     */\n    _getComponentRootNode(componentRef) {\n        return (/** @type {?} */ (((/** @type {?} */ (componentRef.hostView))).rootNodes[0]));\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DomPortalOutlet.prototype._document;\n    /**\n     * Attaches a DOM portal by transferring its content into the outlet.\n     * \\@param portal Portal to be attached.\n     * @deprecated To be turned into a method.\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     */\n    DomPortalOutlet.prototype.attachDomPortal;\n    /**\n     * Element into which the content is projected.\n     * @type {?}\n     */\n    DomPortalOutlet.prototype.outletElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomPortalOutlet.prototype._componentFactoryResolver;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomPortalOutlet.prototype._appRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomPortalOutlet.prototype._defaultInjector;\n}\n/**\n * @deprecated Use `DomPortalOutlet` instead.\n * \\@breaking-change 9.0.0\n */\nclass DomPortalHost extends DomPortalOutlet {\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/portal/portal-directives.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Directive version of a `TemplatePortal`. Because the directive *is* a TemplatePortal,\n * the directive instance itself can be attached to a host, enabling declarative use of portals.\n */\nclass CdkPortal extends TemplatePortal {\n    /**\n     * @param {?} templateRef\n     * @param {?} viewContainerRef\n     */\n    constructor(templateRef, viewContainerRef) {\n        super(templateRef, viewContainerRef);\n    }\n}\nCdkPortal.ɵfac = function CdkPortal_Factory(t) { return new (t || CdkPortal)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef)); };\nCdkPortal.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkPortal, selectors: [[\"\", \"cdkPortal\", \"\"]], exportAs: [\"cdkPortal\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nCdkPortal.ctorParameters = () => [\n    { type: TemplateRef },\n    { type: ViewContainerRef }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkPortal, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkPortal]',\n                exportAs: 'cdkPortal'\n            }]\n    }], function () { return [{ type: ɵngcc0.TemplateRef }, { type: ɵngcc0.ViewContainerRef }]; }, null); })();\n/**\n * @deprecated Use `CdkPortal` instead.\n * \\@breaking-change 9.0.0\n */\nclass TemplatePortalDirective extends CdkPortal {\n}\nTemplatePortalDirective.ɵfac = function TemplatePortalDirective_Factory(t) { return ɵTemplatePortalDirective_BaseFactory(t || TemplatePortalDirective); };\nTemplatePortalDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: TemplatePortalDirective, selectors: [[\"\", \"cdk-portal\", \"\"], [\"\", \"portal\", \"\"]], exportAs: [\"cdkPortal\"], features: [ɵngcc0.ɵɵProvidersFeature([{\n                provide: CdkPortal,\n                useExisting: TemplatePortalDirective\n            }]), ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵTemplatePortalDirective_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(TemplatePortalDirective);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(TemplatePortalDirective, [{\n        type: Directive,\n        args: [{\n                selector: '[cdk-portal], [portal]',\n                exportAs: 'cdkPortal',\n                providers: [{\n                        provide: CdkPortal,\n                        useExisting: TemplatePortalDirective\n                    }]\n            }]\n    }], null, null); })();\n/**\n * Directive version of a PortalOutlet. Because the directive *is* a PortalOutlet, portals can be\n * directly attached to it, enabling declarative use.\n *\n * Usage:\n * `<ng-template [cdkPortalOutlet]=\"greeting\"></ng-template>`\n */\nclass CdkPortalOutlet extends BasePortalOutlet {\n    /**\n     * @param {?} _componentFactoryResolver\n     * @param {?} _viewContainerRef\n     * @param {?=} _document\n     */\n    constructor(_componentFactoryResolver, _viewContainerRef, \n    /**\n     * @deprecated `_document` parameter to be made required.\n     * @breaking-change 9.0.0\n     */\n    _document) {\n        super();\n        this._componentFactoryResolver = _componentFactoryResolver;\n        this._viewContainerRef = _viewContainerRef;\n        /**\n         * Whether the portal component is initialized.\n         */\n        this._isInitialized = false;\n        /**\n         * Emits when a portal is attached to the outlet.\n         */\n        this.attached = new EventEmitter();\n        /**\n         * Attaches the given DomPortal to this PortalHost by moving all of the portal content into it.\n         * @param portal Portal to be attached.\n         * @deprecated To be turned into a method.\n         * \\@breaking-change 10.0.0\n         */\n        this.attachDomPortal = (/**\n         * @param {?} portal\n         * @return {?}\n         */\n        (portal) => {\n            // @breaking-change 9.0.0 Remove check and error once the\n            // `_document` constructor parameter is required.\n            if (!this._document) {\n                throw Error('Cannot attach DOM portal without _document constructor parameter');\n            }\n            /** @type {?} */\n            const element = portal.element;\n            if (!element.parentNode) {\n                throw Error('DOM portal content must be attached to a parent node.');\n            }\n            // Anchor used to save the element's previous position so\n            // that we can restore it when the portal is detached.\n            /** @type {?} */\n            const anchorNode = this._document.createComment('dom-portal');\n            portal.setAttachedHost(this);\n            element.parentNode.insertBefore(anchorNode, element);\n            this._getRootNode().appendChild(element);\n            super.setDisposeFn((/**\n             * @return {?}\n             */\n            () => {\n                if (anchorNode.parentNode) {\n                    (/** @type {?} */ (anchorNode.parentNode)).replaceChild(element, anchorNode);\n                }\n            }));\n        });\n        this._document = _document;\n    }\n    /**\n     * Portal associated with the Portal outlet.\n     * @return {?}\n     */\n    get portal() {\n        return this._attachedPortal;\n    }\n    /**\n     * @param {?} portal\n     * @return {?}\n     */\n    set portal(portal) {\n        // Ignore the cases where the `portal` is set to a falsy value before the lifecycle hooks have\n        // run. This handles the cases where the user might do something like `<div cdkPortalOutlet>`\n        // and attach a portal programmatically in the parent component. When Angular does the first CD\n        // round, it will fire the setter with empty string, causing the user's content to be cleared.\n        if (this.hasAttached() && !portal && !this._isInitialized) {\n            return;\n        }\n        if (this.hasAttached()) {\n            super.detach();\n        }\n        if (portal) {\n            super.attach(portal);\n        }\n        this._attachedPortal = portal;\n    }\n    /**\n     * Component or view reference that is attached to the portal.\n     * @return {?}\n     */\n    get attachedRef() {\n        return this._attachedRef;\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this._isInitialized = true;\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        super.dispose();\n        this._attachedPortal = null;\n        this._attachedRef = null;\n    }\n    /**\n     * Attach the given ComponentPortal to this PortalOutlet using the ComponentFactoryResolver.\n     *\n     * @template T\n     * @param {?} portal Portal to be attached to the portal outlet.\n     * @return {?} Reference to the created component.\n     */\n    attachComponentPortal(portal) {\n        portal.setAttachedHost(this);\n        // If the portal specifies an origin, use that as the logical location of the component\n        // in the application tree. Otherwise use the location of this PortalOutlet.\n        /** @type {?} */\n        const viewContainerRef = portal.viewContainerRef != null ?\n            portal.viewContainerRef :\n            this._viewContainerRef;\n        /** @type {?} */\n        const resolver = portal.componentFactoryResolver || this._componentFactoryResolver;\n        /** @type {?} */\n        const componentFactory = resolver.resolveComponentFactory(portal.component);\n        /** @type {?} */\n        const ref = viewContainerRef.createComponent(componentFactory, viewContainerRef.length, portal.injector || viewContainerRef.injector);\n        // If we're using a view container that's different from the injected one (e.g. when the portal\n        // specifies its own) we need to move the component into the outlet, otherwise it'll be rendered\n        // inside of the alternate view container.\n        if (viewContainerRef !== this._viewContainerRef) {\n            this._getRootNode().appendChild(((/** @type {?} */ (ref.hostView))).rootNodes[0]);\n        }\n        super.setDisposeFn((/**\n         * @return {?}\n         */\n        () => ref.destroy()));\n        this._attachedPortal = portal;\n        this._attachedRef = ref;\n        this.attached.emit(ref);\n        return ref;\n    }\n    /**\n     * Attach the given TemplatePortal to this PortalHost as an embedded View.\n     * @template C\n     * @param {?} portal Portal to be attached.\n     * @return {?} Reference to the created embedded view.\n     */\n    attachTemplatePortal(portal) {\n        portal.setAttachedHost(this);\n        /** @type {?} */\n        const viewRef = this._viewContainerRef.createEmbeddedView(portal.templateRef, portal.context);\n        super.setDisposeFn((/**\n         * @return {?}\n         */\n        () => this._viewContainerRef.clear()));\n        this._attachedPortal = portal;\n        this._attachedRef = viewRef;\n        this.attached.emit(viewRef);\n        return viewRef;\n    }\n    /**\n     * Gets the root node of the portal outlet.\n     * @private\n     * @return {?}\n     */\n    _getRootNode() {\n        /** @type {?} */\n        const nativeElement = this._viewContainerRef.element.nativeElement;\n        // The directive could be set on a template which will result in a comment\n        // node being the root. Use the comment's parent node if that is the case.\n        return (/** @type {?} */ ((nativeElement.nodeType === nativeElement.ELEMENT_NODE ?\n            nativeElement : (/** @type {?} */ (nativeElement.parentNode)))));\n    }\n}\nCdkPortalOutlet.ɵfac = function CdkPortalOutlet_Factory(t) { return new (t || CdkPortalOutlet)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ComponentFactoryResolver), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(DOCUMENT)); };\nCdkPortalOutlet.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkPortalOutlet, selectors: [[\"\", \"cdkPortalOutlet\", \"\"]], inputs: { portal: [\"cdkPortalOutlet\", \"portal\"] }, outputs: { attached: \"attached\" }, exportAs: [\"cdkPortalOutlet\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\nCdkPortalOutlet.ctorParameters = () => [\n    { type: ComponentFactoryResolver },\n    { type: ViewContainerRef },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\nCdkPortalOutlet.propDecorators = {\n    attached: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkPortalOutlet, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkPortalOutlet]',\n                exportAs: 'cdkPortalOutlet',\n                inputs: ['portal: cdkPortalOutlet']\n            }]\n    }], function () { return [{ type: ɵngcc0.ComponentFactoryResolver }, { type: ɵngcc0.ViewContainerRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, { attached: [{\n            type: Output\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkPortalOutlet.ngAcceptInputType_portal;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkPortalOutlet.prototype._document;\n    /**\n     * Whether the portal component is initialized.\n     * @type {?}\n     * @private\n     */\n    CdkPortalOutlet.prototype._isInitialized;\n    /**\n     * Reference to the currently-attached component/view ref.\n     * @type {?}\n     * @private\n     */\n    CdkPortalOutlet.prototype._attachedRef;\n    /**\n     * Emits when a portal is attached to the outlet.\n     * @type {?}\n     */\n    CdkPortalOutlet.prototype.attached;\n    /**\n     * Attaches the given DomPortal to this PortalHost by moving all of the portal content into it.\n     * \\@param portal Portal to be attached.\n     * @deprecated To be turned into a method.\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     */\n    CdkPortalOutlet.prototype.attachDomPortal;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkPortalOutlet.prototype._componentFactoryResolver;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkPortalOutlet.prototype._viewContainerRef;\n}\n/**\n * @deprecated Use `CdkPortalOutlet` instead.\n * \\@breaking-change 9.0.0\n */\nclass PortalHostDirective extends CdkPortalOutlet {\n}\nPortalHostDirective.ɵfac = function PortalHostDirective_Factory(t) { return ɵPortalHostDirective_BaseFactory(t || PortalHostDirective); };\nPortalHostDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: PortalHostDirective, selectors: [[\"\", \"cdkPortalHost\", \"\"], [\"\", \"portalHost\", \"\"]], inputs: { portal: [\"cdkPortalHost\", \"portal\"] }, exportAs: [\"cdkPortalHost\"], features: [ɵngcc0.ɵɵProvidersFeature([{\n                provide: CdkPortalOutlet,\n                useExisting: PortalHostDirective\n            }]), ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵPortalHostDirective_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(PortalHostDirective);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PortalHostDirective, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkPortalHost], [portalHost]',\n                exportAs: 'cdkPortalHost',\n                inputs: ['portal: cdkPortalHost'],\n                providers: [{\n                        provide: CdkPortalOutlet,\n                        useExisting: PortalHostDirective\n                    }]\n            }]\n    }], null, null); })();\nclass PortalModule {\n}\nPortalModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: PortalModule });\nPortalModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function PortalModule_Factory(t) { return new (t || PortalModule)(); } });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(PortalModule, { declarations: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective], exports: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(PortalModule, [{\n        type: NgModule,\n        args: [{\n                exports: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective],\n                declarations: [CdkPortal, CdkPortalOutlet, TemplatePortalDirective, PortalHostDirective]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/portal/portal-injector.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Custom injector to be used when providing custom\n * injection tokens to components inside a portal.\n * \\@docs-private\n */\nclass PortalInjector {\n    /**\n     * @param {?} _parentInjector\n     * @param {?} _customTokens\n     */\n    constructor(_parentInjector, _customTokens) {\n        this._parentInjector = _parentInjector;\n        this._customTokens = _customTokens;\n    }\n    /**\n     * @param {?} token\n     * @param {?=} notFoundValue\n     * @return {?}\n     */\n    get(token, notFoundValue) {\n        /** @type {?} */\n        const value = this._customTokens.get(token);\n        if (typeof value !== 'undefined') {\n            return value;\n        }\n        return this._parentInjector.get(token, notFoundValue);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    PortalInjector.prototype._parentInjector;\n    /**\n     * @type {?}\n     * @private\n     */\n    PortalInjector.prototype._customTokens;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/portal/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BasePortalHost, BasePortalOutlet, CdkPortal, CdkPortalOutlet, ComponentPortal, DomPortal, DomPortalHost, DomPortalOutlet, Portal, PortalHostDirective, PortalInjector, PortalModule, TemplatePortal, TemplatePortalDirective };\n\n//# sourceMappingURL=portal.js.map","/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/keycodes/keycodes.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst MAC_ENTER = 3;\n/** @type {?} */\nconst BACKSPACE = 8;\n/** @type {?} */\nconst TAB = 9;\n/** @type {?} */\nconst NUM_CENTER = 12;\n/** @type {?} */\nconst ENTER = 13;\n/** @type {?} */\nconst SHIFT = 16;\n/** @type {?} */\nconst CONTROL = 17;\n/** @type {?} */\nconst ALT = 18;\n/** @type {?} */\nconst PAUSE = 19;\n/** @type {?} */\nconst CAPS_LOCK = 20;\n/** @type {?} */\nconst ESCAPE = 27;\n/** @type {?} */\nconst SPACE = 32;\n/** @type {?} */\nconst PAGE_UP = 33;\n/** @type {?} */\nconst PAGE_DOWN = 34;\n/** @type {?} */\nconst END = 35;\n/** @type {?} */\nconst HOME = 36;\n/** @type {?} */\nconst LEFT_ARROW = 37;\n/** @type {?} */\nconst UP_ARROW = 38;\n/** @type {?} */\nconst RIGHT_ARROW = 39;\n/** @type {?} */\nconst DOWN_ARROW = 40;\n/** @type {?} */\nconst PLUS_SIGN = 43;\n/** @type {?} */\nconst PRINT_SCREEN = 44;\n/** @type {?} */\nconst INSERT = 45;\n/** @type {?} */\nconst DELETE = 46;\n/** @type {?} */\nconst ZERO = 48;\n/** @type {?} */\nconst ONE = 49;\n/** @type {?} */\nconst TWO = 50;\n/** @type {?} */\nconst THREE = 51;\n/** @type {?} */\nconst FOUR = 52;\n/** @type {?} */\nconst FIVE = 53;\n/** @type {?} */\nconst SIX = 54;\n/** @type {?} */\nconst SEVEN = 55;\n/** @type {?} */\nconst EIGHT = 56;\n/** @type {?} */\nconst NINE = 57;\n/** @type {?} */\nconst FF_SEMICOLON = 59;\n// Firefox (Gecko) fires this for semicolon instead of 186\n/** @type {?} */\nconst FF_EQUALS = 61;\n// Firefox (Gecko) fires this for equals instead of 187\n/** @type {?} */\nconst QUESTION_MARK = 63;\n/** @type {?} */\nconst AT_SIGN = 64;\n/** @type {?} */\nconst A = 65;\n/** @type {?} */\nconst B = 66;\n/** @type {?} */\nconst C = 67;\n/** @type {?} */\nconst D = 68;\n/** @type {?} */\nconst E = 69;\n/** @type {?} */\nconst F = 70;\n/** @type {?} */\nconst G = 71;\n/** @type {?} */\nconst H = 72;\n/** @type {?} */\nconst I = 73;\n/** @type {?} */\nconst J = 74;\n/** @type {?} */\nconst K = 75;\n/** @type {?} */\nconst L = 76;\n/** @type {?} */\nconst M = 77;\n/** @type {?} */\nconst N = 78;\n/** @type {?} */\nconst O = 79;\n/** @type {?} */\nconst P = 80;\n/** @type {?} */\nconst Q = 81;\n/** @type {?} */\nconst R = 82;\n/** @type {?} */\nconst S = 83;\n/** @type {?} */\nconst T = 84;\n/** @type {?} */\nconst U = 85;\n/** @type {?} */\nconst V = 86;\n/** @type {?} */\nconst W = 87;\n/** @type {?} */\nconst X = 88;\n/** @type {?} */\nconst Y = 89;\n/** @type {?} */\nconst Z = 90;\n/** @type {?} */\nconst META = 91;\n// WIN_KEY_LEFT\n/** @type {?} */\nconst MAC_WK_CMD_LEFT = 91;\n/** @type {?} */\nconst MAC_WK_CMD_RIGHT = 93;\n/** @type {?} */\nconst CONTEXT_MENU = 93;\n/** @type {?} */\nconst NUMPAD_ZERO = 96;\n/** @type {?} */\nconst NUMPAD_ONE = 97;\n/** @type {?} */\nconst NUMPAD_TWO = 98;\n/** @type {?} */\nconst NUMPAD_THREE = 99;\n/** @type {?} */\nconst NUMPAD_FOUR = 100;\n/** @type {?} */\nconst NUMPAD_FIVE = 101;\n/** @type {?} */\nconst NUMPAD_SIX = 102;\n/** @type {?} */\nconst NUMPAD_SEVEN = 103;\n/** @type {?} */\nconst NUMPAD_EIGHT = 104;\n/** @type {?} */\nconst NUMPAD_NINE = 105;\n/** @type {?} */\nconst NUMPAD_MULTIPLY = 106;\n/** @type {?} */\nconst NUMPAD_PLUS = 107;\n/** @type {?} */\nconst NUMPAD_MINUS = 109;\n/** @type {?} */\nconst NUMPAD_PERIOD = 110;\n/** @type {?} */\nconst NUMPAD_DIVIDE = 111;\n/** @type {?} */\nconst F1 = 112;\n/** @type {?} */\nconst F2 = 113;\n/** @type {?} */\nconst F3 = 114;\n/** @type {?} */\nconst F4 = 115;\n/** @type {?} */\nconst F5 = 116;\n/** @type {?} */\nconst F6 = 117;\n/** @type {?} */\nconst F7 = 118;\n/** @type {?} */\nconst F8 = 119;\n/** @type {?} */\nconst F9 = 120;\n/** @type {?} */\nconst F10 = 121;\n/** @type {?} */\nconst F11 = 122;\n/** @type {?} */\nconst F12 = 123;\n/** @type {?} */\nconst NUM_LOCK = 144;\n/** @type {?} */\nconst SCROLL_LOCK = 145;\n/** @type {?} */\nconst FIRST_MEDIA = 166;\n/** @type {?} */\nconst FF_MINUS = 173;\n/** @type {?} */\nconst MUTE = 173;\n// Firefox (Gecko) fires 181 for MUTE\n/** @type {?} */\nconst VOLUME_DOWN = 174;\n// Firefox (Gecko) fires 182 for VOLUME_DOWN\n/** @type {?} */\nconst VOLUME_UP = 175;\n// Firefox (Gecko) fires 183 for VOLUME_UP\n/** @type {?} */\nconst FF_MUTE = 181;\n/** @type {?} */\nconst FF_VOLUME_DOWN = 182;\n/** @type {?} */\nconst LAST_MEDIA = 183;\n/** @type {?} */\nconst FF_VOLUME_UP = 183;\n/** @type {?} */\nconst SEMICOLON = 186;\n// Firefox (Gecko) fires 59 for SEMICOLON\n/** @type {?} */\nconst EQUALS = 187;\n// Firefox (Gecko) fires 61 for EQUALS\n/** @type {?} */\nconst COMMA = 188;\n/** @type {?} */\nconst DASH = 189;\n// Firefox (Gecko) fires 173 for DASH/MINUS\n/** @type {?} */\nconst SLASH = 191;\n/** @type {?} */\nconst APOSTROPHE = 192;\n/** @type {?} */\nconst TILDE = 192;\n/** @type {?} */\nconst OPEN_SQUARE_BRACKET = 219;\n/** @type {?} */\nconst BACKSLASH = 220;\n/** @type {?} */\nconst CLOSE_SQUARE_BRACKET = 221;\n/** @type {?} */\nconst SINGLE_QUOTE = 222;\n/** @type {?} */\nconst MAC_META = 224;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/keycodes/modifiers.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Checks whether a modifier key is pressed.\n * @param {?} event Event to be checked.\n * @param {...?} modifiers\n * @return {?}\n */\nfunction hasModifierKey(event, ...modifiers) {\n    if (modifiers.length) {\n        return modifiers.some((/**\n         * @param {?} modifier\n         * @return {?}\n         */\n        modifier => event[modifier]));\n    }\n    return event.altKey || event.shiftKey || event.ctrlKey || event.metaKey;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/keycodes/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { A, ALT, APOSTROPHE, AT_SIGN, B, BACKSLASH, BACKSPACE, C, CAPS_LOCK, CLOSE_SQUARE_BRACKET, COMMA, CONTEXT_MENU, CONTROL, D, DASH, DELETE, DOWN_ARROW, E, EIGHT, END, ENTER, EQUALS, ESCAPE, F, F1, F10, F11, F12, F2, F3, F4, F5, F6, F7, F8, F9, FF_EQUALS, FF_MINUS, FF_MUTE, FF_SEMICOLON, FF_VOLUME_DOWN, FF_VOLUME_UP, FIRST_MEDIA, FIVE, FOUR, G, H, HOME, I, INSERT, J, K, L, LAST_MEDIA, LEFT_ARROW, M, MAC_ENTER, MAC_META, MAC_WK_CMD_LEFT, MAC_WK_CMD_RIGHT, META, MUTE, N, NINE, NUMPAD_DIVIDE, NUMPAD_EIGHT, NUMPAD_FIVE, NUMPAD_FOUR, NUMPAD_MINUS, NUMPAD_MULTIPLY, NUMPAD_NINE, NUMPAD_ONE, NUMPAD_PERIOD, NUMPAD_PLUS, NUMPAD_SEVEN, NUMPAD_SIX, NUMPAD_THREE, NUMPAD_TWO, NUMPAD_ZERO, NUM_CENTER, NUM_LOCK, O, ONE, OPEN_SQUARE_BRACKET, P, PAGE_DOWN, PAGE_UP, PAUSE, PLUS_SIGN, PRINT_SCREEN, Q, QUESTION_MARK, R, RIGHT_ARROW, S, SCROLL_LOCK, SEMICOLON, SEVEN, SHIFT, SINGLE_QUOTE, SIX, SLASH, SPACE, T, TAB, THREE, TILDE, TWO, U, UP_ARROW, V, VOLUME_DOWN, VOLUME_UP, W, X, Y, Z, ZERO, hasModifierKey };\n\n//# sourceMappingURL=keycodes.js.map","import { ScrollDispatcher, ViewportRuler, ScrollingModule } from '@angular/cdk/scrolling';\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/scrolling';\nimport * as ɵngcc2 from '@angular/cdk/platform';\nimport * as ɵngcc3 from '@angular/cdk/bidi';\nimport * as ɵngcc4 from '@angular/common';\nexport { CdkScrollable, ScrollDispatcher, ViewportRuler } from '@angular/cdk/scrolling';\nimport { DOCUMENT, Location } from '@angular/common';\nimport { Injectable, NgZone, Inject, ɵɵdefineInjectable, ɵɵinject, Optional, SkipSelf, ElementRef, ApplicationRef, ComponentFactoryResolver, Injector, InjectionToken, Directive, EventEmitter, TemplateRef, ViewContainerRef, Input, Output, NgModule } from '@angular/core';\nimport { coerceCssPixelValue, coerceArray, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { Directionality, BidiModule } from '@angular/cdk/bidi';\nimport { DomPortalOutlet, TemplatePortal, PortalModule } from '@angular/cdk/portal';\nimport { Platform } from '@angular/cdk/platform';\nimport { Subject, Subscription, merge } from 'rxjs';\nimport { take, takeUntil } from 'rxjs/operators';\nimport { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/scroll/block-scroll-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Strategy that will prevent the user from scrolling while the overlay is visible.\n */\nclass BlockScrollStrategy {\n    /**\n     * @param {?} _viewportRuler\n     * @param {?} document\n     */\n    constructor(_viewportRuler, document) {\n        this._viewportRuler = _viewportRuler;\n        this._previousHTMLStyles = { top: '', left: '' };\n        this._isEnabled = false;\n        this._document = document;\n    }\n    /**\n     * Attaches this scroll strategy to an overlay.\n     * @return {?}\n     */\n    attach() { }\n    /**\n     * Blocks page-level scroll while the attached overlay is open.\n     * @return {?}\n     */\n    enable() {\n        if (this._canBeEnabled()) {\n            /** @type {?} */\n            const root = (/** @type {?} */ (this._document.documentElement));\n            this._previousScrollPosition = this._viewportRuler.getViewportScrollPosition();\n            // Cache the previous inline styles in case the user had set them.\n            this._previousHTMLStyles.left = root.style.left || '';\n            this._previousHTMLStyles.top = root.style.top || '';\n            // Note: we're using the `html` node, instead of the `body`, because the `body` may\n            // have the user agent margin, whereas the `html` is guaranteed not to have one.\n            root.style.left = coerceCssPixelValue(-this._previousScrollPosition.left);\n            root.style.top = coerceCssPixelValue(-this._previousScrollPosition.top);\n            root.classList.add('cdk-global-scrollblock');\n            this._isEnabled = true;\n        }\n    }\n    /**\n     * Unblocks page-level scroll while the attached overlay is open.\n     * @return {?}\n     */\n    disable() {\n        if (this._isEnabled) {\n            /** @type {?} */\n            const html = (/** @type {?} */ (this._document.documentElement));\n            /** @type {?} */\n            const body = (/** @type {?} */ (this._document.body));\n            /** @type {?} */\n            const htmlStyle = (/** @type {?} */ (html.style));\n            /** @type {?} */\n            const bodyStyle = (/** @type {?} */ (body.style));\n            /** @type {?} */\n            const previousHtmlScrollBehavior = htmlStyle.scrollBehavior || '';\n            /** @type {?} */\n            const previousBodyScrollBehavior = bodyStyle.scrollBehavior || '';\n            this._isEnabled = false;\n            htmlStyle.left = this._previousHTMLStyles.left;\n            htmlStyle.top = this._previousHTMLStyles.top;\n            html.classList.remove('cdk-global-scrollblock');\n            // Disable user-defined smooth scrolling temporarily while we restore the scroll position.\n            // See https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-behavior\n            htmlStyle.scrollBehavior = bodyStyle.scrollBehavior = 'auto';\n            window.scroll(this._previousScrollPosition.left, this._previousScrollPosition.top);\n            htmlStyle.scrollBehavior = previousHtmlScrollBehavior;\n            bodyStyle.scrollBehavior = previousBodyScrollBehavior;\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _canBeEnabled() {\n        // Since the scroll strategies can't be singletons, we have to use a global CSS class\n        // (`cdk-global-scrollblock`) to make sure that we don't try to disable global\n        // scrolling multiple times.\n        /** @type {?} */\n        const html = (/** @type {?} */ (this._document.documentElement));\n        if (html.classList.contains('cdk-global-scrollblock') || this._isEnabled) {\n            return false;\n        }\n        /** @type {?} */\n        const body = this._document.body;\n        /** @type {?} */\n        const viewport = this._viewportRuler.getViewportSize();\n        return body.scrollHeight > viewport.height || body.scrollWidth > viewport.width;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    BlockScrollStrategy.prototype._previousHTMLStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    BlockScrollStrategy.prototype._previousScrollPosition;\n    /**\n     * @type {?}\n     * @private\n     */\n    BlockScrollStrategy.prototype._isEnabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    BlockScrollStrategy.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    BlockScrollStrategy.prototype._viewportRuler;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/scroll/scroll-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Describes a strategy that will be used by an overlay to handle scroll events while it is open.\n * @record\n */\nfunction ScrollStrategy() { }\nif (false) {\n    /**\n     * Enable this scroll strategy (called when the attached overlay is attached to a portal).\n     * @type {?}\n     */\n    ScrollStrategy.prototype.enable;\n    /**\n     * Disable this scroll strategy (called when the attached overlay is detached from a portal).\n     * @type {?}\n     */\n    ScrollStrategy.prototype.disable;\n    /**\n     * Attaches this `ScrollStrategy` to an overlay.\n     * @type {?}\n     */\n    ScrollStrategy.prototype.attach;\n    /**\n     * Detaches the scroll strategy from the current overlay.\n     * @type {?|undefined}\n     */\n    ScrollStrategy.prototype.detach;\n}\n/**\n * Returns an error to be thrown when attempting to attach an already-attached scroll strategy.\n * @return {?}\n */\nfunction getMatScrollStrategyAlreadyAttachedError() {\n    return Error(`Scroll strategy has already been attached.`);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/scroll/close-scroll-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Config options for the CloseScrollStrategy.\n * @record\n */\nfunction CloseScrollStrategyConfig() { }\nif (false) {\n    /**\n     * Amount of pixels the user has to scroll before the overlay is closed.\n     * @type {?|undefined}\n     */\n    CloseScrollStrategyConfig.prototype.threshold;\n}\n/**\n * Strategy that will close the overlay as soon as the user starts scrolling.\n */\nclass CloseScrollStrategy {\n    /**\n     * @param {?} _scrollDispatcher\n     * @param {?} _ngZone\n     * @param {?} _viewportRuler\n     * @param {?=} _config\n     */\n    constructor(_scrollDispatcher, _ngZone, _viewportRuler, _config) {\n        this._scrollDispatcher = _scrollDispatcher;\n        this._ngZone = _ngZone;\n        this._viewportRuler = _viewportRuler;\n        this._config = _config;\n        this._scrollSubscription = null;\n        /**\n         * Detaches the overlay ref and disables the scroll strategy.\n         */\n        this._detach = (/**\n         * @return {?}\n         */\n        () => {\n            this.disable();\n            if (this._overlayRef.hasAttached()) {\n                this._ngZone.run((/**\n                 * @return {?}\n                 */\n                () => this._overlayRef.detach()));\n            }\n        });\n    }\n    /**\n     * Attaches this scroll strategy to an overlay.\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        if (this._overlayRef) {\n            throw getMatScrollStrategyAlreadyAttachedError();\n        }\n        this._overlayRef = overlayRef;\n    }\n    /**\n     * Enables the closing of the attached overlay on scroll.\n     * @return {?}\n     */\n    enable() {\n        if (this._scrollSubscription) {\n            return;\n        }\n        /** @type {?} */\n        const stream = this._scrollDispatcher.scrolled(0);\n        if (this._config && this._config.threshold && this._config.threshold > 1) {\n            this._initialScrollPosition = this._viewportRuler.getViewportScrollPosition().top;\n            this._scrollSubscription = stream.subscribe((/**\n             * @return {?}\n             */\n            () => {\n                /** @type {?} */\n                const scrollPosition = this._viewportRuler.getViewportScrollPosition().top;\n                if (Math.abs(scrollPosition - this._initialScrollPosition) > (/** @type {?} */ ((/** @type {?} */ (this._config)).threshold))) {\n                    this._detach();\n                }\n                else {\n                    this._overlayRef.updatePosition();\n                }\n            }));\n        }\n        else {\n            this._scrollSubscription = stream.subscribe(this._detach);\n        }\n    }\n    /**\n     * Disables the closing the attached overlay on scroll.\n     * @return {?}\n     */\n    disable() {\n        if (this._scrollSubscription) {\n            this._scrollSubscription.unsubscribe();\n            this._scrollSubscription = null;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    detach() {\n        this.disable();\n        this._overlayRef = (/** @type {?} */ (null));\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._scrollSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._overlayRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._initialScrollPosition;\n    /**\n     * Detaches the overlay ref and disables the scroll strategy.\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._detach;\n    /**\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._scrollDispatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    CloseScrollStrategy.prototype._config;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/scroll/noop-scroll-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Scroll strategy that doesn't do anything.\n */\nclass NoopScrollStrategy {\n    /**\n     * Does nothing, as this scroll strategy is a no-op.\n     * @return {?}\n     */\n    enable() { }\n    /**\n     * Does nothing, as this scroll strategy is a no-op.\n     * @return {?}\n     */\n    disable() { }\n    /**\n     * Does nothing, as this scroll strategy is a no-op.\n     * @return {?}\n     */\n    attach() { }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/position/scroll-clip.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n// TODO(jelbourn): move this to live with the rest of the scrolling code\n// TODO(jelbourn): someday replace this with IntersectionObservers\n/**\n * Gets whether an element is scrolled outside of view by any of its parent scrolling containers.\n * \\@docs-private\n * @param {?} element Dimensions of the element (from getBoundingClientRect)\n * @param {?} scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect)\n * @return {?} Whether the element is scrolled out of view\n */\nfunction isElementScrolledOutsideView(element, scrollContainers) {\n    return scrollContainers.some((/**\n     * @param {?} containerBounds\n     * @return {?}\n     */\n    containerBounds => {\n        /** @type {?} */\n        const outsideAbove = element.bottom < containerBounds.top;\n        /** @type {?} */\n        const outsideBelow = element.top > containerBounds.bottom;\n        /** @type {?} */\n        const outsideLeft = element.right < containerBounds.left;\n        /** @type {?} */\n        const outsideRight = element.left > containerBounds.right;\n        return outsideAbove || outsideBelow || outsideLeft || outsideRight;\n    }));\n}\n/**\n * Gets whether an element is clipped by any of its scrolling containers.\n * \\@docs-private\n * @param {?} element Dimensions of the element (from getBoundingClientRect)\n * @param {?} scrollContainers Dimensions of element's scrolling containers (from getBoundingClientRect)\n * @return {?} Whether the element is clipped\n */\nfunction isElementClippedByScrolling(element, scrollContainers) {\n    return scrollContainers.some((/**\n     * @param {?} scrollContainerRect\n     * @return {?}\n     */\n    scrollContainerRect => {\n        /** @type {?} */\n        const clippedAbove = element.top < scrollContainerRect.top;\n        /** @type {?} */\n        const clippedBelow = element.bottom > scrollContainerRect.bottom;\n        /** @type {?} */\n        const clippedLeft = element.left < scrollContainerRect.left;\n        /** @type {?} */\n        const clippedRight = element.right > scrollContainerRect.right;\n        return clippedAbove || clippedBelow || clippedLeft || clippedRight;\n    }));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/scroll/reposition-scroll-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Config options for the RepositionScrollStrategy.\n * @record\n */\nfunction RepositionScrollStrategyConfig() { }\nif (false) {\n    /**\n     * Time in milliseconds to throttle the scroll events.\n     * @type {?|undefined}\n     */\n    RepositionScrollStrategyConfig.prototype.scrollThrottle;\n    /**\n     * Whether to close the overlay once the user has scrolled away completely.\n     * @type {?|undefined}\n     */\n    RepositionScrollStrategyConfig.prototype.autoClose;\n}\n/**\n * Strategy that will update the element position as the user is scrolling.\n */\nclass RepositionScrollStrategy {\n    /**\n     * @param {?} _scrollDispatcher\n     * @param {?} _viewportRuler\n     * @param {?} _ngZone\n     * @param {?=} _config\n     */\n    constructor(_scrollDispatcher, _viewportRuler, _ngZone, _config) {\n        this._scrollDispatcher = _scrollDispatcher;\n        this._viewportRuler = _viewportRuler;\n        this._ngZone = _ngZone;\n        this._config = _config;\n        this._scrollSubscription = null;\n    }\n    /**\n     * Attaches this scroll strategy to an overlay.\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        if (this._overlayRef) {\n            throw getMatScrollStrategyAlreadyAttachedError();\n        }\n        this._overlayRef = overlayRef;\n    }\n    /**\n     * Enables repositioning of the attached overlay on scroll.\n     * @return {?}\n     */\n    enable() {\n        if (!this._scrollSubscription) {\n            /** @type {?} */\n            const throttle = this._config ? this._config.scrollThrottle : 0;\n            this._scrollSubscription = this._scrollDispatcher.scrolled(throttle).subscribe((/**\n             * @return {?}\n             */\n            () => {\n                this._overlayRef.updatePosition();\n                // TODO(crisbeto): make `close` on by default once all components can handle it.\n                if (this._config && this._config.autoClose) {\n                    /** @type {?} */\n                    const overlayRect = this._overlayRef.overlayElement.getBoundingClientRect();\n                    const { width, height } = this._viewportRuler.getViewportSize();\n                    // TODO(crisbeto): include all ancestor scroll containers here once\n                    // we have a way of exposing the trigger element to the scroll strategy.\n                    /** @type {?} */\n                    const parentRects = [{ width, height, bottom: height, right: width, top: 0, left: 0 }];\n                    if (isElementScrolledOutsideView(overlayRect, parentRects)) {\n                        this.disable();\n                        this._ngZone.run((/**\n                         * @return {?}\n                         */\n                        () => this._overlayRef.detach()));\n                    }\n                }\n            }));\n        }\n    }\n    /**\n     * Disables repositioning of the attached overlay on scroll.\n     * @return {?}\n     */\n    disable() {\n        if (this._scrollSubscription) {\n            this._scrollSubscription.unsubscribe();\n            this._scrollSubscription = null;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    detach() {\n        this.disable();\n        this._overlayRef = (/** @type {?} */ (null));\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    RepositionScrollStrategy.prototype._scrollSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    RepositionScrollStrategy.prototype._overlayRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    RepositionScrollStrategy.prototype._scrollDispatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    RepositionScrollStrategy.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    RepositionScrollStrategy.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    RepositionScrollStrategy.prototype._config;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/scroll/scroll-strategy-options.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Options for how an overlay will handle scrolling.\n *\n * Users can provide a custom value for `ScrollStrategyOptions` to replace the default\n * behaviors. This class primarily acts as a factory for ScrollStrategy instances.\n */\nclass ScrollStrategyOptions {\n    /**\n     * @param {?} _scrollDispatcher\n     * @param {?} _viewportRuler\n     * @param {?} _ngZone\n     * @param {?} document\n     */\n    constructor(_scrollDispatcher, _viewportRuler, _ngZone, document) {\n        this._scrollDispatcher = _scrollDispatcher;\n        this._viewportRuler = _viewportRuler;\n        this._ngZone = _ngZone;\n        /**\n         * Do nothing on scroll.\n         */\n        this.noop = (/**\n         * @return {?}\n         */\n        () => new NoopScrollStrategy());\n        /**\n         * Close the overlay as soon as the user scrolls.\n         * @param config Configuration to be used inside the scroll strategy.\n         */\n        this.close = (/**\n         * @param {?=} config\n         * @return {?}\n         */\n        (config) => new CloseScrollStrategy(this._scrollDispatcher, this._ngZone, this._viewportRuler, config));\n        /**\n         * Block scrolling.\n         */\n        this.block = (/**\n         * @return {?}\n         */\n        () => new BlockScrollStrategy(this._viewportRuler, this._document));\n        /**\n         * Update the overlay's position on scroll.\n         * @param config Configuration to be used inside the scroll strategy.\n         * Allows debouncing the reposition calls.\n         */\n        this.reposition = (/**\n         * @param {?=} config\n         * @return {?}\n         */\n        (config) => new RepositionScrollStrategy(this._scrollDispatcher, this._viewportRuler, this._ngZone, config));\n        this._document = document;\n    }\n}\nScrollStrategyOptions.ɵfac = function ScrollStrategyOptions_Factory(t) { return new (t || ScrollStrategyOptions)(ɵngcc0.ɵɵinject(ɵngcc1.ScrollDispatcher), ɵngcc0.ɵɵinject(ɵngcc1.ViewportRuler), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nScrollStrategyOptions.ctorParameters = () => [\n    { type: ScrollDispatcher },\n    { type: ViewportRuler },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ ScrollStrategyOptions.ɵprov = ɵɵdefineInjectable({ factory: function ScrollStrategyOptions_Factory() { return new ScrollStrategyOptions(ɵɵinject(ScrollDispatcher), ɵɵinject(ViewportRuler), ɵɵinject(NgZone), ɵɵinject(DOCUMENT)); }, token: ScrollStrategyOptions, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ScrollStrategyOptions, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc1.ScrollDispatcher }, { type: ɵngcc1.ViewportRuler }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ScrollStrategyOptions.prototype._document;\n    /**\n     * Do nothing on scroll.\n     * @type {?}\n     */\n    ScrollStrategyOptions.prototype.noop;\n    /**\n     * Close the overlay as soon as the user scrolls.\n     * \\@param config Configuration to be used inside the scroll strategy.\n     * @type {?}\n     */\n    ScrollStrategyOptions.prototype.close;\n    /**\n     * Block scrolling.\n     * @type {?}\n     */\n    ScrollStrategyOptions.prototype.block;\n    /**\n     * Update the overlay's position on scroll.\n     * \\@param config Configuration to be used inside the scroll strategy.\n     * Allows debouncing the reposition calls.\n     * @type {?}\n     */\n    ScrollStrategyOptions.prototype.reposition;\n    /**\n     * @type {?}\n     * @private\n     */\n    ScrollStrategyOptions.prototype._scrollDispatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    ScrollStrategyOptions.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    ScrollStrategyOptions.prototype._ngZone;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/scroll/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/overlay-config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Initial configuration used when creating an overlay.\n */\nclass OverlayConfig {\n    /**\n     * @param {?=} config\n     */\n    constructor(config) {\n        /**\n         * Strategy to be used when handling scroll events while the overlay is open.\n         */\n        this.scrollStrategy = new NoopScrollStrategy();\n        /**\n         * Custom class to add to the overlay pane.\n         */\n        this.panelClass = '';\n        /**\n         * Whether the overlay has a backdrop.\n         */\n        this.hasBackdrop = false;\n        /**\n         * Custom class to add to the backdrop\n         */\n        this.backdropClass = 'cdk-overlay-dark-backdrop';\n        /**\n         * Whether the overlay should be disposed of when the user goes backwards/forwards in history.\n         * Note that this usually doesn't include clicking on links (unless the user is using\n         * the `HashLocationStrategy`).\n         */\n        this.disposeOnNavigation = false;\n        if (config) {\n            // Use `Iterable` instead of `Array` because TypeScript, as of 3.6.3,\n            // loses the array generic type in the `for of`. But we *also* have to use `Array` because\n            // typescript won't iterate over an `Iterable` unless you compile with `--downlevelIteration`\n            /** @type {?} */\n            const configKeys = (/** @type {?} */ (Object.keys(config)));\n            for (const key of configKeys) {\n                if (config[key] !== undefined) {\n                    // TypeScript, as of version 3.5, sees the left-hand-side of this expression\n                    // as \"I don't know *which* key this is, so the only valid value is the intersection\n                    // of all the posible values.\" In this case, that happens to be `undefined`. TypeScript\n                    // is not smart enough to see that the right-hand-side is actually an access of the same\n                    // exact type with the same exact key, meaning that the value type must be identical.\n                    // So we use `any` to work around this.\n                    this[key] = (/** @type {?} */ (config[key]));\n                }\n            }\n        }\n    }\n}\nif (false) {\n    /**\n     * Strategy with which to position the overlay.\n     * @type {?}\n     */\n    OverlayConfig.prototype.positionStrategy;\n    /**\n     * Strategy to be used when handling scroll events while the overlay is open.\n     * @type {?}\n     */\n    OverlayConfig.prototype.scrollStrategy;\n    /**\n     * Custom class to add to the overlay pane.\n     * @type {?}\n     */\n    OverlayConfig.prototype.panelClass;\n    /**\n     * Whether the overlay has a backdrop.\n     * @type {?}\n     */\n    OverlayConfig.prototype.hasBackdrop;\n    /**\n     * Custom class to add to the backdrop\n     * @type {?}\n     */\n    OverlayConfig.prototype.backdropClass;\n    /**\n     * The width of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.width;\n    /**\n     * The height of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.height;\n    /**\n     * The min-width of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.minWidth;\n    /**\n     * The min-height of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.minHeight;\n    /**\n     * The max-width of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.maxWidth;\n    /**\n     * The max-height of the overlay panel. If a number is provided, pixel units are assumed.\n     * @type {?}\n     */\n    OverlayConfig.prototype.maxHeight;\n    /**\n     * Direction of the text in the overlay panel. If a `Directionality` instance\n     * is passed in, the overlay will handle changes to its value automatically.\n     * @type {?}\n     */\n    OverlayConfig.prototype.direction;\n    /**\n     * Whether the overlay should be disposed of when the user goes backwards/forwards in history.\n     * Note that this usually doesn't include clicking on links (unless the user is using\n     * the `HashLocationStrategy`).\n     * @type {?}\n     */\n    OverlayConfig.prototype.disposeOnNavigation;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/position/connected-position.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A connection point on the origin element.\n * @record\n */\nfunction OriginConnectionPosition() { }\nif (false) {\n    /** @type {?} */\n    OriginConnectionPosition.prototype.originX;\n    /** @type {?} */\n    OriginConnectionPosition.prototype.originY;\n}\n/**\n * A connection point on the overlay element.\n * @record\n */\nfunction OverlayConnectionPosition() { }\nif (false) {\n    /** @type {?} */\n    OverlayConnectionPosition.prototype.overlayX;\n    /** @type {?} */\n    OverlayConnectionPosition.prototype.overlayY;\n}\n/**\n * The points of the origin element and the overlay element to connect.\n */\nclass ConnectionPositionPair {\n    /**\n     * @param {?} origin\n     * @param {?} overlay\n     * @param {?=} offsetX\n     * @param {?=} offsetY\n     * @param {?=} panelClass\n     */\n    constructor(origin, overlay, offsetX, offsetY, panelClass) {\n        this.offsetX = offsetX;\n        this.offsetY = offsetY;\n        this.panelClass = panelClass;\n        this.originX = origin.originX;\n        this.originY = origin.originY;\n        this.overlayX = overlay.overlayX;\n        this.overlayY = overlay.overlayY;\n    }\n}\nif (false) {\n    /**\n     * X-axis attachment point for connected overlay origin. Can be 'start', 'end', or 'center'.\n     * @type {?}\n     */\n    ConnectionPositionPair.prototype.originX;\n    /**\n     * Y-axis attachment point for connected overlay origin. Can be 'top', 'bottom', or 'center'.\n     * @type {?}\n     */\n    ConnectionPositionPair.prototype.originY;\n    /**\n     * X-axis attachment point for connected overlay. Can be 'start', 'end', or 'center'.\n     * @type {?}\n     */\n    ConnectionPositionPair.prototype.overlayX;\n    /**\n     * Y-axis attachment point for connected overlay. Can be 'top', 'bottom', or 'center'.\n     * @type {?}\n     */\n    ConnectionPositionPair.prototype.overlayY;\n    /**\n     * Offset along the X axis.\n     * @type {?}\n     */\n    ConnectionPositionPair.prototype.offsetX;\n    /**\n     * Offset along the Y axis.\n     * @type {?}\n     */\n    ConnectionPositionPair.prototype.offsetY;\n    /**\n     * Class(es) to be applied to the panel while this position is active.\n     * @type {?}\n     */\n    ConnectionPositionPair.prototype.panelClass;\n}\n/**\n * Set of properties regarding the position of the origin and overlay relative to the viewport\n * with respect to the containing Scrollable elements.\n *\n * The overlay and origin are clipped if any part of their bounding client rectangle exceeds the\n * bounds of any one of the strategy's Scrollable's bounding client rectangle.\n *\n * The overlay and origin are outside view if there is no overlap between their bounding client\n * rectangle and any one of the strategy's Scrollable's bounding client rectangle.\n *\n *       -----------                    -----------\n *       | outside |                    | clipped |\n *       |  view   |              --------------------------\n *       |         |              |     |         |        |\n *       ----------               |     -----------        |\n *  --------------------------    |                        |\n *  |                        |    |      Scrollable        |\n *  |                        |    |                        |\n *  |                        |     --------------------------\n *  |      Scrollable        |\n *  |                        |\n *  --------------------------\n *\n * \\@docs-private\n */\nclass ScrollingVisibility {\n}\nif (false) {\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOriginClipped;\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOriginOutsideView;\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOverlayClipped;\n    /** @type {?} */\n    ScrollingVisibility.prototype.isOverlayOutsideView;\n}\n/**\n * The change event emitted by the strategy when a fallback position is used.\n */\nclass ConnectedOverlayPositionChange {\n    /**\n     * @param {?} connectionPair\n     * @param {?} scrollableViewProperties\n     */\n    constructor(connectionPair, scrollableViewProperties) {\n        this.connectionPair = connectionPair;\n        this.scrollableViewProperties = scrollableViewProperties;\n    }\n}\n/** @nocollapse */\nConnectedOverlayPositionChange.ctorParameters = () => [\n    { type: ConnectionPositionPair },\n    { type: ScrollingVisibility, decorators: [{ type: Optional }] }\n];\nif (false) {\n    /**\n     * The position used as a result of this change.\n     * @type {?}\n     */\n    ConnectedOverlayPositionChange.prototype.connectionPair;\n    /**\n     * \\@docs-private\n     * @type {?}\n     */\n    ConnectedOverlayPositionChange.prototype.scrollableViewProperties;\n}\n/**\n * Validates whether a vertical position property matches the expected values.\n * \\@docs-private\n * @param {?} property Name of the property being validated.\n * @param {?} value Value of the property being validated.\n * @return {?}\n */\nfunction validateVerticalPosition(property, value) {\n    if (value !== 'top' && value !== 'bottom' && value !== 'center') {\n        throw Error(`ConnectedPosition: Invalid ${property} \"${value}\". ` +\n            `Expected \"top\", \"bottom\" or \"center\".`);\n    }\n}\n/**\n * Validates whether a horizontal position property matches the expected values.\n * \\@docs-private\n * @param {?} property Name of the property being validated.\n * @param {?} value Value of the property being validated.\n * @return {?}\n */\nfunction validateHorizontalPosition(property, value) {\n    if (value !== 'start' && value !== 'end' && value !== 'center') {\n        throw Error(`ConnectedPosition: Invalid ${property} \"${value}\". ` +\n            `Expected \"start\", \"end\" or \"center\".`);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/keyboard/overlay-keyboard-dispatcher.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Service for dispatching keyboard events that land on the body to appropriate overlay ref,\n * if any. It maintains a list of attached overlays to determine best suited overlay based\n * on event target and order of overlay opens.\n */\nclass OverlayKeyboardDispatcher {\n    /**\n     * @param {?} document\n     */\n    constructor(document) {\n        /**\n         * Currently attached overlays in the order they were attached.\n         */\n        this._attachedOverlays = [];\n        /**\n         * Keyboard event listener that will be attached to the body.\n         */\n        this._keydownListener = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            /** @type {?} */\n            const overlays = this._attachedOverlays;\n            for (let i = overlays.length - 1; i > -1; i--) {\n                // Dispatch the keydown event to the top overlay which has subscribers to its keydown events.\n                // We want to target the most recent overlay, rather than trying to match where the event came\n                // from, because some components might open an overlay, but keep focus on a trigger element\n                // (e.g. for select and autocomplete). We skip overlays without keydown event subscriptions,\n                // because we don't want overlays that don't handle keyboard events to block the ones below\n                // them that do.\n                if (overlays[i]._keydownEvents.observers.length > 0) {\n                    overlays[i]._keydownEvents.next(event);\n                    break;\n                }\n            }\n        });\n        this._document = document;\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._detach();\n    }\n    /**\n     * Add a new overlay to the list of attached overlay refs.\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    add(overlayRef) {\n        // Ensure that we don't get the same overlay multiple times.\n        this.remove(overlayRef);\n        // Lazily start dispatcher once first overlay is added\n        if (!this._isAttached) {\n            this._document.body.addEventListener('keydown', this._keydownListener);\n            this._isAttached = true;\n        }\n        this._attachedOverlays.push(overlayRef);\n    }\n    /**\n     * Remove an overlay from the list of attached overlay refs.\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    remove(overlayRef) {\n        /** @type {?} */\n        const index = this._attachedOverlays.indexOf(overlayRef);\n        if (index > -1) {\n            this._attachedOverlays.splice(index, 1);\n        }\n        // Remove the global listener once there are no more overlays.\n        if (this._attachedOverlays.length === 0) {\n            this._detach();\n        }\n    }\n    /**\n     * Detaches the global keyboard event listener.\n     * @private\n     * @return {?}\n     */\n    _detach() {\n        if (this._isAttached) {\n            this._document.body.removeEventListener('keydown', this._keydownListener);\n            this._isAttached = false;\n        }\n    }\n}\nOverlayKeyboardDispatcher.ɵfac = function OverlayKeyboardDispatcher_Factory(t) { return new (t || OverlayKeyboardDispatcher)(ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nOverlayKeyboardDispatcher.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ OverlayKeyboardDispatcher.ɵprov = ɵɵdefineInjectable({ factory: function OverlayKeyboardDispatcher_Factory() { return new OverlayKeyboardDispatcher(ɵɵinject(DOCUMENT)); }, token: OverlayKeyboardDispatcher, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(OverlayKeyboardDispatcher, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * Currently attached overlays in the order they were attached.\n     * @type {?}\n     */\n    OverlayKeyboardDispatcher.prototype._attachedOverlays;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayKeyboardDispatcher.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayKeyboardDispatcher.prototype._isAttached;\n    /**\n     * Keyboard event listener that will be attached to the body.\n     * @type {?}\n     * @private\n     */\n    OverlayKeyboardDispatcher.prototype._keydownListener;\n}\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @param {?} dispatcher\n * @param {?} _document\n * @return {?}\n */\nfunction OVERLAY_KEYBOARD_DISPATCHER_PROVIDER_FACTORY(dispatcher, _document) {\n    return dispatcher || new OverlayKeyboardDispatcher(_document);\n}\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @type {?}\n */\nconst OVERLAY_KEYBOARD_DISPATCHER_PROVIDER = {\n    // If there is already an OverlayKeyboardDispatcher available, use that.\n    // Otherwise, provide a new one.\n    provide: OverlayKeyboardDispatcher,\n    deps: [\n        [new Optional(), new SkipSelf(), OverlayKeyboardDispatcher],\n        (/** @type {?} */ (\n        // Coerce to `InjectionToken` so that the `deps` match the \"shape\"\n        // of the type expected by Angular\n        DOCUMENT))\n    ],\n    useFactory: OVERLAY_KEYBOARD_DISPATCHER_PROVIDER_FACTORY\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/overlay-container.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Whether we're in a testing environment.\n * TODO(crisbeto): remove this once we have an overlay testing module.\n * @type {?}\n */\nconst isTestEnvironment = typeof window !== 'undefined' && !!window &&\n    !!(((/** @type {?} */ (window))).__karma__ || ((/** @type {?} */ (window))).jasmine);\n/**\n * Container inside which all overlays will render.\n */\nclass OverlayContainer {\n    /**\n     * @param {?} document\n     * @param {?=} _platform\n     */\n    constructor(document, _platform) {\n        this._platform = _platform;\n        this._document = document;\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        /** @type {?} */\n        const container = this._containerElement;\n        if (container && container.parentNode) {\n            container.parentNode.removeChild(container);\n        }\n    }\n    /**\n     * This method returns the overlay container element. It will lazily\n     * create the element the first time  it is called to facilitate using\n     * the container in non-browser environments.\n     * @return {?} the container element\n     */\n    getContainerElement() {\n        if (!this._containerElement) {\n            this._createContainer();\n        }\n        return this._containerElement;\n    }\n    /**\n     * Create the overlay container element, which is simply a div\n     * with the 'cdk-overlay-container' class on the document body.\n     * @protected\n     * @return {?}\n     */\n    _createContainer() {\n        // @breaking-change 10.0.0 Remove null check for `_platform`.\n        /** @type {?} */\n        const isBrowser = this._platform ? this._platform.isBrowser : typeof window !== 'undefined';\n        /** @type {?} */\n        const containerClass = 'cdk-overlay-container';\n        if (isBrowser || isTestEnvironment) {\n            /** @type {?} */\n            const oppositePlatformContainers = this._document.querySelectorAll(`.${containerClass}[platform=\"server\"], ` +\n                `.${containerClass}[platform=\"test\"]`);\n            // Remove any old containers from the opposite platform.\n            // This can happen when transitioning from the server to the client.\n            for (let i = 0; i < oppositePlatformContainers.length; i++) {\n                (/** @type {?} */ (oppositePlatformContainers[i].parentNode)).removeChild(oppositePlatformContainers[i]);\n            }\n        }\n        /** @type {?} */\n        const container = this._document.createElement('div');\n        container.classList.add(containerClass);\n        // A long time ago we kept adding new overlay containers whenever a new app was instantiated,\n        // but at some point we added logic which clears the duplicate ones in order to avoid leaks.\n        // The new logic was a little too aggressive since it was breaking some legitimate use cases.\n        // To mitigate the problem we made it so that only containers from a different platform are\n        // cleared, but the side-effect was that people started depending on the overly-aggressive\n        // logic to clean up their tests for them. Until we can introduce an overlay-specific testing\n        // module which does the cleanup, we try to detect that we're in a test environment and we\n        // always clear the container. See #17006.\n        // TODO(crisbeto): remove the test environment check once we have an overlay testing module.\n        if (isTestEnvironment) {\n            container.setAttribute('platform', 'test');\n        }\n        else if (!isBrowser) {\n            container.setAttribute('platform', 'server');\n        }\n        this._document.body.appendChild(container);\n        this._containerElement = container;\n    }\n}\nOverlayContainer.ɵfac = function OverlayContainer_Factory(t) { return new (t || OverlayContainer)(ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(ɵngcc2.Platform)); };\n/** @nocollapse */\nOverlayContainer.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: Platform }\n];\n/** @nocollapse */ OverlayContainer.ɵprov = ɵɵdefineInjectable({ factory: function OverlayContainer_Factory() { return new OverlayContainer(ɵɵinject(DOCUMENT), ɵɵinject(Platform)); }, token: OverlayContainer, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(OverlayContainer, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc2.Platform }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @protected\n     */\n    OverlayContainer.prototype._containerElement;\n    /**\n     * @type {?}\n     * @protected\n     */\n    OverlayContainer.prototype._document;\n    /**\n     * @deprecated `platform` parameter to become required.\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     * @protected\n     */\n    OverlayContainer.prototype._platform;\n}\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @param {?} parentContainer\n * @param {?} _document\n * @return {?}\n */\nfunction OVERLAY_CONTAINER_PROVIDER_FACTORY(parentContainer, _document) {\n    return parentContainer || new OverlayContainer(_document);\n}\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @type {?}\n */\nconst OVERLAY_CONTAINER_PROVIDER = {\n    // If there is already an OverlayContainer available, use that. Otherwise, provide a new one.\n    provide: OverlayContainer,\n    deps: [\n        [new Optional(), new SkipSelf(), OverlayContainer],\n        (/** @type {?} */ (DOCUMENT))\n    ],\n    useFactory: OVERLAY_CONTAINER_PROVIDER_FACTORY\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/overlay-ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Reference to an overlay that has been created with the Overlay service.\n * Used to manipulate or dispose of said overlay.\n */\nclass OverlayRef {\n    /**\n     * @param {?} _portalOutlet\n     * @param {?} _host\n     * @param {?} _pane\n     * @param {?} _config\n     * @param {?} _ngZone\n     * @param {?} _keyboardDispatcher\n     * @param {?} _document\n     * @param {?=} _location\n     */\n    constructor(_portalOutlet, _host, _pane, _config, _ngZone, _keyboardDispatcher, _document, _location) {\n        this._portalOutlet = _portalOutlet;\n        this._host = _host;\n        this._pane = _pane;\n        this._config = _config;\n        this._ngZone = _ngZone;\n        this._keyboardDispatcher = _keyboardDispatcher;\n        this._document = _document;\n        this._location = _location;\n        this._backdropElement = null;\n        this._backdropClick = new Subject();\n        this._attachments = new Subject();\n        this._detachments = new Subject();\n        this._locationChanges = Subscription.EMPTY;\n        this._backdropClickHandler = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => this._backdropClick.next(event));\n        /**\n         * Stream of keydown events dispatched to this overlay.\n         */\n        this._keydownEvents = new Subject();\n        if (_config.scrollStrategy) {\n            this._scrollStrategy = _config.scrollStrategy;\n            this._scrollStrategy.attach(this);\n        }\n        this._positionStrategy = _config.positionStrategy;\n    }\n    /**\n     * The overlay's HTML element\n     * @return {?}\n     */\n    get overlayElement() {\n        return this._pane;\n    }\n    /**\n     * The overlay's backdrop HTML element.\n     * @return {?}\n     */\n    get backdropElement() {\n        return this._backdropElement;\n    }\n    /**\n     * Wrapper around the panel element. Can be used for advanced\n     * positioning where a wrapper with specific styling is\n     * required around the overlay pane.\n     * @return {?}\n     */\n    get hostElement() {\n        return this._host;\n    }\n    /**\n     * Attaches content, given via a Portal, to the overlay.\n     * If the overlay is configured to have a backdrop, it will be created.\n     *\n     * @param {?} portal Portal instance to which to attach the overlay.\n     * @return {?} The portal attachment result.\n     */\n    attach(portal) {\n        /** @type {?} */\n        let attachResult = this._portalOutlet.attach(portal);\n        // Update the pane element with the given configuration.\n        if (!this._host.parentElement && this._previousHostParent) {\n            this._previousHostParent.appendChild(this._host);\n        }\n        if (this._positionStrategy) {\n            this._positionStrategy.attach(this);\n        }\n        this._updateStackingOrder();\n        this._updateElementSize();\n        this._updateElementDirection();\n        if (this._scrollStrategy) {\n            this._scrollStrategy.enable();\n        }\n        // Update the position once the zone is stable so that the overlay will be fully rendered\n        // before attempting to position it, as the position may depend on the size of the rendered\n        // content.\n        this._ngZone.onStable\n            .asObservable()\n            .pipe(take(1))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => {\n            // The overlay could've been detached before the zone has stabilized.\n            if (this.hasAttached()) {\n                this.updatePosition();\n            }\n        }));\n        // Enable pointer events for the overlay pane element.\n        this._togglePointerEvents(true);\n        if (this._config.hasBackdrop) {\n            this._attachBackdrop();\n        }\n        if (this._config.panelClass) {\n            this._toggleClasses(this._pane, this._config.panelClass, true);\n        }\n        // Only emit the `attachments` event once all other setup is done.\n        this._attachments.next();\n        // Track this overlay by the keyboard dispatcher\n        this._keyboardDispatcher.add(this);\n        // @breaking-change 8.0.0 remove the null check for `_location`\n        // once the constructor parameter is made required.\n        if (this._config.disposeOnNavigation && this._location) {\n            this._locationChanges = this._location.subscribe((/**\n             * @return {?}\n             */\n            () => this.dispose()));\n        }\n        return attachResult;\n    }\n    /**\n     * Detaches an overlay from a portal.\n     * @return {?} The portal detachment result.\n     */\n    detach() {\n        if (!this.hasAttached()) {\n            return;\n        }\n        this.detachBackdrop();\n        // When the overlay is detached, the pane element should disable pointer events.\n        // This is necessary because otherwise the pane element will cover the page and disable\n        // pointer events therefore. Depends on the position strategy and the applied pane boundaries.\n        this._togglePointerEvents(false);\n        if (this._positionStrategy && this._positionStrategy.detach) {\n            this._positionStrategy.detach();\n        }\n        if (this._scrollStrategy) {\n            this._scrollStrategy.disable();\n        }\n        /** @type {?} */\n        const detachmentResult = this._portalOutlet.detach();\n        // Only emit after everything is detached.\n        this._detachments.next();\n        // Remove this overlay from keyboard dispatcher tracking.\n        this._keyboardDispatcher.remove(this);\n        // Keeping the host element in the DOM can cause scroll jank, because it still gets\n        // rendered, even though it's transparent and unclickable which is why we remove it.\n        this._detachContentWhenStable();\n        // Stop listening for location changes.\n        this._locationChanges.unsubscribe();\n        return detachmentResult;\n    }\n    /**\n     * Cleans up the overlay from the DOM.\n     * @return {?}\n     */\n    dispose() {\n        /** @type {?} */\n        const isAttached = this.hasAttached();\n        if (this._positionStrategy) {\n            this._positionStrategy.dispose();\n        }\n        this._disposeScrollStrategy();\n        this.detachBackdrop();\n        this._locationChanges.unsubscribe();\n        this._keyboardDispatcher.remove(this);\n        this._portalOutlet.dispose();\n        this._attachments.complete();\n        this._backdropClick.complete();\n        this._keydownEvents.complete();\n        if (this._host && this._host.parentNode) {\n            this._host.parentNode.removeChild(this._host);\n            this._host = (/** @type {?} */ (null));\n        }\n        this._previousHostParent = this._pane = (/** @type {?} */ (null));\n        if (isAttached) {\n            this._detachments.next();\n        }\n        this._detachments.complete();\n    }\n    /**\n     * Whether the overlay has attached content.\n     * @return {?}\n     */\n    hasAttached() {\n        return this._portalOutlet.hasAttached();\n    }\n    /**\n     * Gets an observable that emits when the backdrop has been clicked.\n     * @return {?}\n     */\n    backdropClick() {\n        return this._backdropClick.asObservable();\n    }\n    /**\n     * Gets an observable that emits when the overlay has been attached.\n     * @return {?}\n     */\n    attachments() {\n        return this._attachments.asObservable();\n    }\n    /**\n     * Gets an observable that emits when the overlay has been detached.\n     * @return {?}\n     */\n    detachments() {\n        return this._detachments.asObservable();\n    }\n    /**\n     * Gets an observable of keydown events targeted to this overlay.\n     * @return {?}\n     */\n    keydownEvents() {\n        return this._keydownEvents.asObservable();\n    }\n    /**\n     * Gets the current overlay configuration, which is immutable.\n     * @return {?}\n     */\n    getConfig() {\n        return this._config;\n    }\n    /**\n     * Updates the position of the overlay based on the position strategy.\n     * @return {?}\n     */\n    updatePosition() {\n        if (this._positionStrategy) {\n            this._positionStrategy.apply();\n        }\n    }\n    /**\n     * Switches to a new position strategy and updates the overlay position.\n     * @param {?} strategy\n     * @return {?}\n     */\n    updatePositionStrategy(strategy) {\n        if (strategy === this._positionStrategy) {\n            return;\n        }\n        if (this._positionStrategy) {\n            this._positionStrategy.dispose();\n        }\n        this._positionStrategy = strategy;\n        if (this.hasAttached()) {\n            strategy.attach(this);\n            this.updatePosition();\n        }\n    }\n    /**\n     * Update the size properties of the overlay.\n     * @param {?} sizeConfig\n     * @return {?}\n     */\n    updateSize(sizeConfig) {\n        this._config = Object.assign(Object.assign({}, this._config), sizeConfig);\n        this._updateElementSize();\n    }\n    /**\n     * Sets the LTR/RTL direction for the overlay.\n     * @param {?} dir\n     * @return {?}\n     */\n    setDirection(dir) {\n        this._config = Object.assign(Object.assign({}, this._config), { direction: dir });\n        this._updateElementDirection();\n    }\n    /**\n     * Add a CSS class or an array of classes to the overlay pane.\n     * @param {?} classes\n     * @return {?}\n     */\n    addPanelClass(classes) {\n        if (this._pane) {\n            this._toggleClasses(this._pane, classes, true);\n        }\n    }\n    /**\n     * Remove a CSS class or an array of classes from the overlay pane.\n     * @param {?} classes\n     * @return {?}\n     */\n    removePanelClass(classes) {\n        if (this._pane) {\n            this._toggleClasses(this._pane, classes, false);\n        }\n    }\n    /**\n     * Returns the layout direction of the overlay panel.\n     * @return {?}\n     */\n    getDirection() {\n        /** @type {?} */\n        const direction = this._config.direction;\n        if (!direction) {\n            return 'ltr';\n        }\n        return typeof direction === 'string' ? direction : direction.value;\n    }\n    /**\n     * Switches to a new scroll strategy.\n     * @param {?} strategy\n     * @return {?}\n     */\n    updateScrollStrategy(strategy) {\n        if (strategy === this._scrollStrategy) {\n            return;\n        }\n        this._disposeScrollStrategy();\n        this._scrollStrategy = strategy;\n        if (this.hasAttached()) {\n            strategy.attach(this);\n            strategy.enable();\n        }\n    }\n    /**\n     * Updates the text direction of the overlay panel.\n     * @private\n     * @return {?}\n     */\n    _updateElementDirection() {\n        this._host.setAttribute('dir', this.getDirection());\n    }\n    /**\n     * Updates the size of the overlay element based on the overlay config.\n     * @private\n     * @return {?}\n     */\n    _updateElementSize() {\n        if (!this._pane) {\n            return;\n        }\n        /** @type {?} */\n        const style = this._pane.style;\n        style.width = coerceCssPixelValue(this._config.width);\n        style.height = coerceCssPixelValue(this._config.height);\n        style.minWidth = coerceCssPixelValue(this._config.minWidth);\n        style.minHeight = coerceCssPixelValue(this._config.minHeight);\n        style.maxWidth = coerceCssPixelValue(this._config.maxWidth);\n        style.maxHeight = coerceCssPixelValue(this._config.maxHeight);\n    }\n    /**\n     * Toggles the pointer events for the overlay pane element.\n     * @private\n     * @param {?} enablePointer\n     * @return {?}\n     */\n    _togglePointerEvents(enablePointer) {\n        this._pane.style.pointerEvents = enablePointer ? 'auto' : 'none';\n    }\n    /**\n     * Attaches a backdrop for this overlay.\n     * @private\n     * @return {?}\n     */\n    _attachBackdrop() {\n        /** @type {?} */\n        const showingClass = 'cdk-overlay-backdrop-showing';\n        this._backdropElement = this._document.createElement('div');\n        this._backdropElement.classList.add('cdk-overlay-backdrop');\n        if (this._config.backdropClass) {\n            this._toggleClasses(this._backdropElement, this._config.backdropClass, true);\n        }\n        // Insert the backdrop before the pane in the DOM order,\n        // in order to handle stacked overlays properly.\n        (/** @type {?} */ (this._host.parentElement)).insertBefore(this._backdropElement, this._host);\n        // Forward backdrop clicks such that the consumer of the overlay can perform whatever\n        // action desired when such a click occurs (usually closing the overlay).\n        this._backdropElement.addEventListener('click', this._backdropClickHandler);\n        // Add class to fade-in the backdrop after one frame.\n        if (typeof requestAnimationFrame !== 'undefined') {\n            this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                requestAnimationFrame((/**\n                 * @return {?}\n                 */\n                () => {\n                    if (this._backdropElement) {\n                        this._backdropElement.classList.add(showingClass);\n                    }\n                }));\n            }));\n        }\n        else {\n            this._backdropElement.classList.add(showingClass);\n        }\n    }\n    /**\n     * Updates the stacking order of the element, moving it to the top if necessary.\n     * This is required in cases where one overlay was detached, while another one,\n     * that should be behind it, was destroyed. The next time both of them are opened,\n     * the stacking will be wrong, because the detached element's pane will still be\n     * in its original DOM position.\n     * @private\n     * @return {?}\n     */\n    _updateStackingOrder() {\n        if (this._host.nextSibling) {\n            (/** @type {?} */ (this._host.parentNode)).appendChild(this._host);\n        }\n    }\n    /**\n     * Detaches the backdrop (if any) associated with the overlay.\n     * @return {?}\n     */\n    detachBackdrop() {\n        /** @type {?} */\n        let backdropToDetach = this._backdropElement;\n        if (!backdropToDetach) {\n            return;\n        }\n        /** @type {?} */\n        let timeoutId;\n        /** @type {?} */\n        let finishDetach = (/**\n         * @return {?}\n         */\n        () => {\n            // It may not be attached to anything in certain cases (e.g. unit tests).\n            if (backdropToDetach) {\n                backdropToDetach.removeEventListener('click', this._backdropClickHandler);\n                backdropToDetach.removeEventListener('transitionend', finishDetach);\n                if (backdropToDetach.parentNode) {\n                    backdropToDetach.parentNode.removeChild(backdropToDetach);\n                }\n            }\n            // It is possible that a new portal has been attached to this overlay since we started\n            // removing the backdrop. If that is the case, only clear the backdrop reference if it\n            // is still the same instance that we started to remove.\n            if (this._backdropElement == backdropToDetach) {\n                this._backdropElement = null;\n            }\n            if (this._config.backdropClass) {\n                this._toggleClasses((/** @type {?} */ (backdropToDetach)), this._config.backdropClass, false);\n            }\n            clearTimeout(timeoutId);\n        });\n        backdropToDetach.classList.remove('cdk-overlay-backdrop-showing');\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            (/** @type {?} */ (backdropToDetach)).addEventListener('transitionend', finishDetach);\n        }));\n        // If the backdrop doesn't have a transition, the `transitionend` event won't fire.\n        // In this case we make it unclickable and we try to remove it after a delay.\n        backdropToDetach.style.pointerEvents = 'none';\n        // Run this outside the Angular zone because there's nothing that Angular cares about.\n        // If it were to run inside the Angular zone, every test that used Overlay would have to be\n        // either async or fakeAsync.\n        timeoutId = this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => setTimeout(finishDetach, 500)));\n    }\n    /**\n     * Toggles a single CSS class or an array of classes on an element.\n     * @private\n     * @param {?} element\n     * @param {?} cssClasses\n     * @param {?} isAdd\n     * @return {?}\n     */\n    _toggleClasses(element, cssClasses, isAdd) {\n        /** @type {?} */\n        const classList = element.classList;\n        coerceArray(cssClasses).forEach((/**\n         * @param {?} cssClass\n         * @return {?}\n         */\n        cssClass => {\n            // We can't do a spread here, because IE doesn't support setting multiple classes.\n            // Also trying to add an empty string to a DOMTokenList will throw.\n            if (cssClass) {\n                isAdd ? classList.add(cssClass) : classList.remove(cssClass);\n            }\n        }));\n    }\n    /**\n     * Detaches the overlay content next time the zone stabilizes.\n     * @private\n     * @return {?}\n     */\n    _detachContentWhenStable() {\n        // Normally we wouldn't have to explicitly run this outside the `NgZone`, however\n        // if the consumer is using `zone-patch-rxjs`, the `Subscription.unsubscribe` call will\n        // be patched to run inside the zone, which will throw us into an infinite loop.\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            // We can't remove the host here immediately, because the overlay pane's content\n            // might still be animating. This stream helps us avoid interrupting the animation\n            // by waiting for the pane to become empty.\n            /** @type {?} */\n            const subscription = this._ngZone.onStable\n                .asObservable()\n                .pipe(takeUntil(merge(this._attachments, this._detachments)))\n                .subscribe((/**\n             * @return {?}\n             */\n            () => {\n                // Needs a couple of checks for the pane and host, because\n                // they may have been removed by the time the zone stabilizes.\n                if (!this._pane || !this._host || this._pane.children.length === 0) {\n                    if (this._pane && this._config.panelClass) {\n                        this._toggleClasses(this._pane, this._config.panelClass, false);\n                    }\n                    if (this._host && this._host.parentElement) {\n                        this._previousHostParent = this._host.parentElement;\n                        this._previousHostParent.removeChild(this._host);\n                    }\n                    subscription.unsubscribe();\n                }\n            }));\n        }));\n    }\n    /**\n     * Disposes of a scroll strategy.\n     * @private\n     * @return {?}\n     */\n    _disposeScrollStrategy() {\n        /** @type {?} */\n        const scrollStrategy = this._scrollStrategy;\n        if (scrollStrategy) {\n            scrollStrategy.disable();\n            if (scrollStrategy.detach) {\n                scrollStrategy.detach();\n            }\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._backdropElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._backdropClick;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._attachments;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._detachments;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._positionStrategy;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._scrollStrategy;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._locationChanges;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._backdropClickHandler;\n    /**\n     * Reference to the parent of the `_host` at the time it was detached. Used to restore\n     * the `_host` to its original position in the DOM when it gets re-attached.\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._previousHostParent;\n    /**\n     * Stream of keydown events dispatched to this overlay.\n     * @type {?}\n     */\n    OverlayRef.prototype._keydownEvents;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._portalOutlet;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._host;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._pane;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._config;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._keyboardDispatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayRef.prototype._location;\n}\n/**\n * Size properties for an overlay.\n * @record\n */\nfunction OverlaySizeConfig() { }\nif (false) {\n    /** @type {?|undefined} */\n    OverlaySizeConfig.prototype.width;\n    /** @type {?|undefined} */\n    OverlaySizeConfig.prototype.height;\n    /** @type {?|undefined} */\n    OverlaySizeConfig.prototype.minWidth;\n    /** @type {?|undefined} */\n    OverlaySizeConfig.prototype.minHeight;\n    /** @type {?|undefined} */\n    OverlaySizeConfig.prototype.maxWidth;\n    /** @type {?|undefined} */\n    OverlaySizeConfig.prototype.maxHeight;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/position/flexible-connected-position-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// TODO: refactor clipping detection into a separate thing (part of scrolling module)\n// TODO: doesn't handle both flexible width and height when it has to scroll along both axis.\n/**\n * Class to be added to the overlay bounding box.\n * @type {?}\n */\nconst boundingBoxClass = 'cdk-overlay-connected-position-bounding-box';\n/**\n * Regex used to split a string on its CSS units.\n * @type {?}\n */\nconst cssUnitPattern = /([A-Za-z%]+)$/;\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * implicit position relative some origin element. The relative position is defined in terms of\n * a point on the origin element that is connected to a point on the overlay element. For example,\n * a basic dropdown is connecting the bottom-left corner of the origin to the top-left corner\n * of the overlay.\n */\nclass FlexibleConnectedPositionStrategy {\n    /**\n     * @param {?} connectedTo\n     * @param {?} _viewportRuler\n     * @param {?} _document\n     * @param {?} _platform\n     * @param {?} _overlayContainer\n     */\n    constructor(connectedTo, _viewportRuler, _document, _platform, _overlayContainer) {\n        this._viewportRuler = _viewportRuler;\n        this._document = _document;\n        this._platform = _platform;\n        this._overlayContainer = _overlayContainer;\n        /**\n         * Last size used for the bounding box. Used to avoid resizing the overlay after open.\n         */\n        this._lastBoundingBoxSize = { width: 0, height: 0 };\n        /**\n         * Whether the overlay was pushed in a previous positioning.\n         */\n        this._isPushed = false;\n        /**\n         * Whether the overlay can be pushed on-screen on the initial open.\n         */\n        this._canPush = true;\n        /**\n         * Whether the overlay can grow via flexible width/height after the initial open.\n         */\n        this._growAfterOpen = false;\n        /**\n         * Whether the overlay's width and height can be constrained to fit within the viewport.\n         */\n        this._hasFlexibleDimensions = true;\n        /**\n         * Whether the overlay position is locked.\n         */\n        this._positionLocked = false;\n        /**\n         * Amount of space that must be maintained between the overlay and the edge of the viewport.\n         */\n        this._viewportMargin = 0;\n        /**\n         * The Scrollable containers used to check scrollable view properties on position change.\n         */\n        this._scrollables = [];\n        /**\n         * Ordered list of preferred positions, from most to least desirable.\n         */\n        this._preferredPositions = [];\n        /**\n         * Subject that emits whenever the position changes.\n         */\n        this._positionChanges = new Subject();\n        /**\n         * Subscription to viewport size changes.\n         */\n        this._resizeSubscription = Subscription.EMPTY;\n        /**\n         * Default offset for the overlay along the x axis.\n         */\n        this._offsetX = 0;\n        /**\n         * Default offset for the overlay along the y axis.\n         */\n        this._offsetY = 0;\n        /**\n         * Keeps track of the CSS classes that the position strategy has applied on the overlay panel.\n         */\n        this._appliedPanelClasses = [];\n        /**\n         * Observable sequence of position changes.\n         */\n        this.positionChanges = this._positionChanges.asObservable();\n        this.setOrigin(connectedTo);\n    }\n    /**\n     * Ordered list of preferred positions, from most to least desirable.\n     * @return {?}\n     */\n    get positions() {\n        return this._preferredPositions;\n    }\n    /**\n     * Attaches this position strategy to an overlay.\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        if (this._overlayRef && overlayRef !== this._overlayRef) {\n            throw Error('This position strategy is already attached to an overlay');\n        }\n        this._validatePositions();\n        overlayRef.hostElement.classList.add(boundingBoxClass);\n        this._overlayRef = overlayRef;\n        this._boundingBox = overlayRef.hostElement;\n        this._pane = overlayRef.overlayElement;\n        this._isDisposed = false;\n        this._isInitialRender = true;\n        this._lastPosition = null;\n        this._resizeSubscription.unsubscribe();\n        this._resizeSubscription = this._viewportRuler.change().subscribe((/**\n         * @return {?}\n         */\n        () => {\n            // When the window is resized, we want to trigger the next reposition as if it\n            // was an initial render, in order for the strategy to pick a new optimal position,\n            // otherwise position locking will cause it to stay at the old one.\n            this._isInitialRender = true;\n            this.apply();\n        }));\n    }\n    /**\n     * Updates the position of the overlay element, using whichever preferred position relative\n     * to the origin best fits on-screen.\n     *\n     * The selection of a position goes as follows:\n     *  - If any positions fit completely within the viewport as-is,\n     *      choose the first position that does so.\n     *  - If flexible dimensions are enabled and at least one satifies the given minimum width/height,\n     *      choose the position with the greatest available size modified by the positions' weight.\n     *  - If pushing is enabled, take the position that went off-screen the least and push it\n     *      on-screen.\n     *  - If none of the previous criteria were met, use the position that goes off-screen the least.\n     * \\@docs-private\n     * @return {?}\n     */\n    apply() {\n        // We shouldn't do anything if the strategy was disposed or we're on the server.\n        if (this._isDisposed || !this._platform.isBrowser) {\n            return;\n        }\n        // If the position has been applied already (e.g. when the overlay was opened) and the\n        // consumer opted into locking in the position, re-use the old position, in order to\n        // prevent the overlay from jumping around.\n        if (!this._isInitialRender && this._positionLocked && this._lastPosition) {\n            this.reapplyLastPosition();\n            return;\n        }\n        this._clearPanelClasses();\n        this._resetOverlayElementStyles();\n        this._resetBoundingBoxStyles();\n        // We need the bounding rects for the origin and the overlay to determine how to position\n        // the overlay relative to the origin.\n        // We use the viewport rect to determine whether a position would go off-screen.\n        this._viewportRect = this._getNarrowedViewportRect();\n        this._originRect = this._getOriginRect();\n        this._overlayRect = this._pane.getBoundingClientRect();\n        /** @type {?} */\n        const originRect = this._originRect;\n        /** @type {?} */\n        const overlayRect = this._overlayRect;\n        /** @type {?} */\n        const viewportRect = this._viewportRect;\n        // Positions where the overlay will fit with flexible dimensions.\n        /** @type {?} */\n        const flexibleFits = [];\n        // Fallback if none of the preferred positions fit within the viewport.\n        /** @type {?} */\n        let fallback;\n        // Go through each of the preferred positions looking for a good fit.\n        // If a good fit is found, it will be applied immediately.\n        for (let pos of this._preferredPositions) {\n            // Get the exact (x, y) coordinate for the point-of-origin on the origin element.\n            /** @type {?} */\n            let originPoint = this._getOriginPoint(originRect, pos);\n            // From that point-of-origin, get the exact (x, y) coordinate for the top-left corner of the\n            // overlay in this position. We use the top-left corner for calculations and later translate\n            // this into an appropriate (top, left, bottom, right) style.\n            /** @type {?} */\n            let overlayPoint = this._getOverlayPoint(originPoint, overlayRect, pos);\n            // Calculate how well the overlay would fit into the viewport with this point.\n            /** @type {?} */\n            let overlayFit = this._getOverlayFit(overlayPoint, overlayRect, viewportRect, pos);\n            // If the overlay, without any further work, fits into the viewport, use this position.\n            if (overlayFit.isCompletelyWithinViewport) {\n                this._isPushed = false;\n                this._applyPosition(pos, originPoint);\n                return;\n            }\n            // If the overlay has flexible dimensions, we can use this position\n            // so long as there's enough space for the minimum dimensions.\n            if (this._canFitWithFlexibleDimensions(overlayFit, overlayPoint, viewportRect)) {\n                // Save positions where the overlay will fit with flexible dimensions. We will use these\n                // if none of the positions fit *without* flexible dimensions.\n                flexibleFits.push({\n                    position: pos,\n                    origin: originPoint,\n                    overlayRect,\n                    boundingBoxRect: this._calculateBoundingBoxRect(originPoint, pos)\n                });\n                continue;\n            }\n            // If the current preferred position does not fit on the screen, remember the position\n            // if it has more visible area on-screen than we've seen and move onto the next preferred\n            // position.\n            if (!fallback || fallback.overlayFit.visibleArea < overlayFit.visibleArea) {\n                fallback = { overlayFit, overlayPoint, originPoint, position: pos, overlayRect };\n            }\n        }\n        // If there are any positions where the overlay would fit with flexible dimensions, choose the\n        // one that has the greatest area available modified by the position's weight\n        if (flexibleFits.length) {\n            /** @type {?} */\n            let bestFit = null;\n            /** @type {?} */\n            let bestScore = -1;\n            for (const fit of flexibleFits) {\n                /** @type {?} */\n                const score = fit.boundingBoxRect.width * fit.boundingBoxRect.height * (fit.position.weight || 1);\n                if (score > bestScore) {\n                    bestScore = score;\n                    bestFit = fit;\n                }\n            }\n            this._isPushed = false;\n            this._applyPosition((/** @type {?} */ (bestFit)).position, (/** @type {?} */ (bestFit)).origin);\n            return;\n        }\n        // When none of the preferred positions fit within the viewport, take the position\n        // that went off-screen the least and attempt to push it on-screen.\n        if (this._canPush) {\n            // TODO(jelbourn): after pushing, the opening \"direction\" of the overlay might not make sense.\n            this._isPushed = true;\n            this._applyPosition((/** @type {?} */ (fallback)).position, (/** @type {?} */ (fallback)).originPoint);\n            return;\n        }\n        // All options for getting the overlay within the viewport have been exhausted, so go with the\n        // position that went off-screen the least.\n        this._applyPosition((/** @type {?} */ (fallback)).position, (/** @type {?} */ (fallback)).originPoint);\n    }\n    /**\n     * @return {?}\n     */\n    detach() {\n        this._clearPanelClasses();\n        this._lastPosition = null;\n        this._previousPushAmount = null;\n        this._resizeSubscription.unsubscribe();\n    }\n    /**\n     * Cleanup after the element gets destroyed.\n     * @return {?}\n     */\n    dispose() {\n        if (this._isDisposed) {\n            return;\n        }\n        // We can't use `_resetBoundingBoxStyles` here, because it resets\n        // some properties to zero, rather than removing them.\n        if (this._boundingBox) {\n            extendStyles(this._boundingBox.style, (/** @type {?} */ ({\n                top: '',\n                left: '',\n                right: '',\n                bottom: '',\n                height: '',\n                width: '',\n                alignItems: '',\n                justifyContent: '',\n            })));\n        }\n        if (this._pane) {\n            this._resetOverlayElementStyles();\n        }\n        if (this._overlayRef) {\n            this._overlayRef.hostElement.classList.remove(boundingBoxClass);\n        }\n        this.detach();\n        this._positionChanges.complete();\n        this._overlayRef = this._boundingBox = (/** @type {?} */ (null));\n        this._isDisposed = true;\n    }\n    /**\n     * This re-aligns the overlay element with the trigger in its last calculated position,\n     * even if a position higher in the \"preferred positions\" list would now fit. This\n     * allows one to re-align the panel without changing the orientation of the panel.\n     * @return {?}\n     */\n    reapplyLastPosition() {\n        if (!this._isDisposed && (!this._platform || this._platform.isBrowser)) {\n            this._originRect = this._getOriginRect();\n            this._overlayRect = this._pane.getBoundingClientRect();\n            this._viewportRect = this._getNarrowedViewportRect();\n            /** @type {?} */\n            const lastPosition = this._lastPosition || this._preferredPositions[0];\n            /** @type {?} */\n            const originPoint = this._getOriginPoint(this._originRect, lastPosition);\n            this._applyPosition(lastPosition, originPoint);\n        }\n    }\n    /**\n     * Sets the list of Scrollable containers that host the origin element so that\n     * on reposition we can evaluate if it or the overlay has been clipped or outside view. Every\n     * Scrollable must be an ancestor element of the strategy's origin element.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} scrollables\n     * @return {THIS}\n     */\n    withScrollableContainers(scrollables) {\n        (/** @type {?} */ (this))._scrollables = scrollables;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Adds new preferred positions.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} positions List of positions options for this overlay.\n     * @return {THIS}\n     */\n    withPositions(positions) {\n        (/** @type {?} */ (this))._preferredPositions = positions;\n        // If the last calculated position object isn't part of the positions anymore, clear\n        // it in order to avoid it being picked up if the consumer tries to re-apply.\n        if (positions.indexOf((/** @type {?} */ ((/** @type {?} */ (this))._lastPosition))) === -1) {\n            (/** @type {?} */ (this))._lastPosition = null;\n        }\n        (/** @type {?} */ (this))._validatePositions();\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets a minimum distance the overlay may be positioned to the edge of the viewport.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} margin Required margin between the overlay and the viewport edge in pixels.\n     * @return {THIS}\n     */\n    withViewportMargin(margin) {\n        (/** @type {?} */ (this))._viewportMargin = margin;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets whether the overlay's width and height can be constrained to fit within the viewport.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} flexibleDimensions\n     * @return {THIS}\n     */\n    withFlexibleDimensions(flexibleDimensions = true) {\n        (/** @type {?} */ (this))._hasFlexibleDimensions = flexibleDimensions;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets whether the overlay can grow after the initial open via flexible width/height.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} growAfterOpen\n     * @return {THIS}\n     */\n    withGrowAfterOpen(growAfterOpen = true) {\n        (/** @type {?} */ (this))._growAfterOpen = growAfterOpen;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets whether the overlay can be pushed on-screen if none of the provided positions fit.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} canPush\n     * @return {THIS}\n     */\n    withPush(canPush = true) {\n        (/** @type {?} */ (this))._canPush = canPush;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets whether the overlay's position should be locked in after it is positioned\n     * initially. When an overlay is locked in, it won't attempt to reposition itself\n     * when the position is re-applied (e.g. when the user scrolls away).\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} isLocked Whether the overlay should locked in.\n     * @return {THIS}\n     */\n    withLockedPosition(isLocked = true) {\n        (/** @type {?} */ (this))._positionLocked = isLocked;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the origin, relative to which to position the overlay.\n     * Using an element origin is useful for building components that need to be positioned\n     * relatively to a trigger (e.g. dropdown menus or tooltips), whereas using a point can be\n     * used for cases like contextual menus which open relative to the user's pointer.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} origin Reference to the new origin.\n     * @return {THIS}\n     */\n    setOrigin(origin) {\n        (/** @type {?} */ (this))._origin = origin;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the default offset for the overlay's connection point on the x-axis.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} offset New offset in the X axis.\n     * @return {THIS}\n     */\n    withDefaultOffsetX(offset) {\n        (/** @type {?} */ (this))._offsetX = offset;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the default offset for the overlay's connection point on the y-axis.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} offset New offset in the Y axis.\n     * @return {THIS}\n     */\n    withDefaultOffsetY(offset) {\n        (/** @type {?} */ (this))._offsetY = offset;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Configures that the position strategy should set a `transform-origin` on some elements\n     * inside the overlay, depending on the current position that is being applied. This is\n     * useful for the cases where the origin of an animation can change depending on the\n     * alignment of the overlay.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} selector CSS selector that will be used to find the target\n     *    elements onto which to set the transform origin.\n     * @return {THIS}\n     */\n    withTransformOriginOn(selector) {\n        (/** @type {?} */ (this))._transformOriginSelector = selector;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Gets the (x, y) coordinate of a connection point on the origin based on a relative position.\n     * @private\n     * @param {?} originRect\n     * @param {?} pos\n     * @return {?}\n     */\n    _getOriginPoint(originRect, pos) {\n        /** @type {?} */\n        let x;\n        if (pos.originX == 'center') {\n            // Note: when centering we should always use the `left`\n            // offset, otherwise the position will be wrong in RTL.\n            x = originRect.left + (originRect.width / 2);\n        }\n        else {\n            /** @type {?} */\n            const startX = this._isRtl() ? originRect.right : originRect.left;\n            /** @type {?} */\n            const endX = this._isRtl() ? originRect.left : originRect.right;\n            x = pos.originX == 'start' ? startX : endX;\n        }\n        /** @type {?} */\n        let y;\n        if (pos.originY == 'center') {\n            y = originRect.top + (originRect.height / 2);\n        }\n        else {\n            y = pos.originY == 'top' ? originRect.top : originRect.bottom;\n        }\n        return { x, y };\n    }\n    /**\n     * Gets the (x, y) coordinate of the top-left corner of the overlay given a given position and\n     * origin point to which the overlay should be connected.\n     * @private\n     * @param {?} originPoint\n     * @param {?} overlayRect\n     * @param {?} pos\n     * @return {?}\n     */\n    _getOverlayPoint(originPoint, overlayRect, pos) {\n        // Calculate the (overlayStartX, overlayStartY), the start of the\n        // potential overlay position relative to the origin point.\n        /** @type {?} */\n        let overlayStartX;\n        if (pos.overlayX == 'center') {\n            overlayStartX = -overlayRect.width / 2;\n        }\n        else if (pos.overlayX === 'start') {\n            overlayStartX = this._isRtl() ? -overlayRect.width : 0;\n        }\n        else {\n            overlayStartX = this._isRtl() ? 0 : -overlayRect.width;\n        }\n        /** @type {?} */\n        let overlayStartY;\n        if (pos.overlayY == 'center') {\n            overlayStartY = -overlayRect.height / 2;\n        }\n        else {\n            overlayStartY = pos.overlayY == 'top' ? 0 : -overlayRect.height;\n        }\n        // The (x, y) coordinates of the overlay.\n        return {\n            x: originPoint.x + overlayStartX,\n            y: originPoint.y + overlayStartY,\n        };\n    }\n    /**\n     * Gets how well an overlay at the given point will fit within the viewport.\n     * @private\n     * @param {?} point\n     * @param {?} overlay\n     * @param {?} viewport\n     * @param {?} position\n     * @return {?}\n     */\n    _getOverlayFit(point, overlay, viewport, position) {\n        let { x, y } = point;\n        /** @type {?} */\n        let offsetX = this._getOffset(position, 'x');\n        /** @type {?} */\n        let offsetY = this._getOffset(position, 'y');\n        // Account for the offsets since they could push the overlay out of the viewport.\n        if (offsetX) {\n            x += offsetX;\n        }\n        if (offsetY) {\n            y += offsetY;\n        }\n        // How much the overlay would overflow at this position, on each side.\n        /** @type {?} */\n        let leftOverflow = 0 - x;\n        /** @type {?} */\n        let rightOverflow = (x + overlay.width) - viewport.width;\n        /** @type {?} */\n        let topOverflow = 0 - y;\n        /** @type {?} */\n        let bottomOverflow = (y + overlay.height) - viewport.height;\n        // Visible parts of the element on each axis.\n        /** @type {?} */\n        let visibleWidth = this._subtractOverflows(overlay.width, leftOverflow, rightOverflow);\n        /** @type {?} */\n        let visibleHeight = this._subtractOverflows(overlay.height, topOverflow, bottomOverflow);\n        /** @type {?} */\n        let visibleArea = visibleWidth * visibleHeight;\n        return {\n            visibleArea,\n            isCompletelyWithinViewport: (overlay.width * overlay.height) === visibleArea,\n            fitsInViewportVertically: visibleHeight === overlay.height,\n            fitsInViewportHorizontally: visibleWidth == overlay.width,\n        };\n    }\n    /**\n     * Whether the overlay can fit within the viewport when it may resize either its width or height.\n     * @private\n     * @param {?} fit How well the overlay fits in the viewport at some position.\n     * @param {?} point The (x, y) coordinates of the overlat at some position.\n     * @param {?} viewport The geometry of the viewport.\n     * @return {?}\n     */\n    _canFitWithFlexibleDimensions(fit, point, viewport) {\n        if (this._hasFlexibleDimensions) {\n            /** @type {?} */\n            const availableHeight = viewport.bottom - point.y;\n            /** @type {?} */\n            const availableWidth = viewport.right - point.x;\n            /** @type {?} */\n            const minHeight = getPixelValue(this._overlayRef.getConfig().minHeight);\n            /** @type {?} */\n            const minWidth = getPixelValue(this._overlayRef.getConfig().minWidth);\n            /** @type {?} */\n            const verticalFit = fit.fitsInViewportVertically ||\n                (minHeight != null && minHeight <= availableHeight);\n            /** @type {?} */\n            const horizontalFit = fit.fitsInViewportHorizontally ||\n                (minWidth != null && minWidth <= availableWidth);\n            return verticalFit && horizontalFit;\n        }\n        return false;\n    }\n    /**\n     * Gets the point at which the overlay can be \"pushed\" on-screen. If the overlay is larger than\n     * the viewport, the top-left corner will be pushed on-screen (with overflow occuring on the\n     * right and bottom).\n     *\n     * @private\n     * @param {?} start Starting point from which the overlay is pushed.\n     * @param {?} overlay Dimensions of the overlay.\n     * @param {?} scrollPosition Current viewport scroll position.\n     * @return {?} The point at which to position the overlay after pushing. This is effectively a new\n     *     originPoint.\n     */\n    _pushOverlayOnScreen(start, overlay, scrollPosition) {\n        // If the position is locked and we've pushed the overlay already, reuse the previous push\n        // amount, rather than pushing it again. If we were to continue pushing, the element would\n        // remain in the viewport, which goes against the expectations when position locking is enabled.\n        if (this._previousPushAmount && this._positionLocked) {\n            return {\n                x: start.x + this._previousPushAmount.x,\n                y: start.y + this._previousPushAmount.y\n            };\n        }\n        /** @type {?} */\n        const viewport = this._viewportRect;\n        // Determine how much the overlay goes outside the viewport on each\n        // side, which we'll use to decide which direction to push it.\n        /** @type {?} */\n        const overflowRight = Math.max(start.x + overlay.width - viewport.right, 0);\n        /** @type {?} */\n        const overflowBottom = Math.max(start.y + overlay.height - viewport.bottom, 0);\n        /** @type {?} */\n        const overflowTop = Math.max(viewport.top - scrollPosition.top - start.y, 0);\n        /** @type {?} */\n        const overflowLeft = Math.max(viewport.left - scrollPosition.left - start.x, 0);\n        // Amount by which to push the overlay in each axis such that it remains on-screen.\n        /** @type {?} */\n        let pushX = 0;\n        /** @type {?} */\n        let pushY = 0;\n        // If the overlay fits completely within the bounds of the viewport, push it from whichever\n        // direction is goes off-screen. Otherwise, push the top-left corner such that its in the\n        // viewport and allow for the trailing end of the overlay to go out of bounds.\n        if (overlay.width <= viewport.width) {\n            pushX = overflowLeft || -overflowRight;\n        }\n        else {\n            pushX = start.x < this._viewportMargin ? (viewport.left - scrollPosition.left) - start.x : 0;\n        }\n        if (overlay.height <= viewport.height) {\n            pushY = overflowTop || -overflowBottom;\n        }\n        else {\n            pushY = start.y < this._viewportMargin ? (viewport.top - scrollPosition.top) - start.y : 0;\n        }\n        this._previousPushAmount = { x: pushX, y: pushY };\n        return {\n            x: start.x + pushX,\n            y: start.y + pushY,\n        };\n    }\n    /**\n     * Applies a computed position to the overlay and emits a position change.\n     * @private\n     * @param {?} position The position preference\n     * @param {?} originPoint The point on the origin element where the overlay is connected.\n     * @return {?}\n     */\n    _applyPosition(position, originPoint) {\n        this._setTransformOrigin(position);\n        this._setOverlayElementStyles(originPoint, position);\n        this._setBoundingBoxStyles(originPoint, position);\n        if (position.panelClass) {\n            this._addPanelClasses(position.panelClass);\n        }\n        // Save the last connected position in case the position needs to be re-calculated.\n        this._lastPosition = position;\n        // Notify that the position has been changed along with its change properties.\n        // We only emit if we've got any subscriptions, because the scroll visibility\n        // calculcations can be somewhat expensive.\n        if (this._positionChanges.observers.length) {\n            /** @type {?} */\n            const scrollableViewProperties = this._getScrollVisibility();\n            /** @type {?} */\n            const changeEvent = new ConnectedOverlayPositionChange(position, scrollableViewProperties);\n            this._positionChanges.next(changeEvent);\n        }\n        this._isInitialRender = false;\n    }\n    /**\n     * Sets the transform origin based on the configured selector and the passed-in position.\n     * @private\n     * @param {?} position\n     * @return {?}\n     */\n    _setTransformOrigin(position) {\n        if (!this._transformOriginSelector) {\n            return;\n        }\n        /** @type {?} */\n        const elements = (/** @type {?} */ (this._boundingBox)).querySelectorAll(this._transformOriginSelector);\n        /** @type {?} */\n        let xOrigin;\n        /** @type {?} */\n        let yOrigin = position.overlayY;\n        if (position.overlayX === 'center') {\n            xOrigin = 'center';\n        }\n        else if (this._isRtl()) {\n            xOrigin = position.overlayX === 'start' ? 'right' : 'left';\n        }\n        else {\n            xOrigin = position.overlayX === 'start' ? 'left' : 'right';\n        }\n        for (let i = 0; i < elements.length; i++) {\n            elements[i].style.transformOrigin = `${xOrigin} ${yOrigin}`;\n        }\n    }\n    /**\n     * Gets the position and size of the overlay's sizing container.\n     *\n     * This method does no measuring and applies no styles so that we can cheaply compute the\n     * bounds for all positions and choose the best fit based on these results.\n     * @private\n     * @param {?} origin\n     * @param {?} position\n     * @return {?}\n     */\n    _calculateBoundingBoxRect(origin, position) {\n        /** @type {?} */\n        const viewport = this._viewportRect;\n        /** @type {?} */\n        const isRtl = this._isRtl();\n        /** @type {?} */\n        let height;\n        /** @type {?} */\n        let top;\n        /** @type {?} */\n        let bottom;\n        if (position.overlayY === 'top') {\n            // Overlay is opening \"downward\" and thus is bound by the bottom viewport edge.\n            top = origin.y;\n            height = viewport.height - top + this._viewportMargin;\n        }\n        else if (position.overlayY === 'bottom') {\n            // Overlay is opening \"upward\" and thus is bound by the top viewport edge. We need to add\n            // the viewport margin back in, because the viewport rect is narrowed down to remove the\n            // margin, whereas the `origin` position is calculated based on its `ClientRect`.\n            bottom = viewport.height - origin.y + this._viewportMargin * 2;\n            height = viewport.height - bottom + this._viewportMargin;\n        }\n        else {\n            // If neither top nor bottom, it means that the overlay is vertically centered on the\n            // origin point. Note that we want the position relative to the viewport, rather than\n            // the page, which is why we don't use something like `viewport.bottom - origin.y` and\n            // `origin.y - viewport.top`.\n            /** @type {?} */\n            const smallestDistanceToViewportEdge = Math.min(viewport.bottom - origin.y + viewport.top, origin.y);\n            /** @type {?} */\n            const previousHeight = this._lastBoundingBoxSize.height;\n            height = smallestDistanceToViewportEdge * 2;\n            top = origin.y - smallestDistanceToViewportEdge;\n            if (height > previousHeight && !this._isInitialRender && !this._growAfterOpen) {\n                top = origin.y - (previousHeight / 2);\n            }\n        }\n        // The overlay is opening 'right-ward' (the content flows to the right).\n        /** @type {?} */\n        const isBoundedByRightViewportEdge = (position.overlayX === 'start' && !isRtl) ||\n            (position.overlayX === 'end' && isRtl);\n        // The overlay is opening 'left-ward' (the content flows to the left).\n        /** @type {?} */\n        const isBoundedByLeftViewportEdge = (position.overlayX === 'end' && !isRtl) ||\n            (position.overlayX === 'start' && isRtl);\n        /** @type {?} */\n        let width;\n        /** @type {?} */\n        let left;\n        /** @type {?} */\n        let right;\n        if (isBoundedByLeftViewportEdge) {\n            right = viewport.width - origin.x + this._viewportMargin;\n            width = origin.x - this._viewportMargin;\n        }\n        else if (isBoundedByRightViewportEdge) {\n            left = origin.x;\n            width = viewport.right - origin.x;\n        }\n        else {\n            // If neither start nor end, it means that the overlay is horizontally centered on the\n            // origin point. Note that we want the position relative to the viewport, rather than\n            // the page, which is why we don't use something like `viewport.right - origin.x` and\n            // `origin.x - viewport.left`.\n            /** @type {?} */\n            const smallestDistanceToViewportEdge = Math.min(viewport.right - origin.x + viewport.left, origin.x);\n            /** @type {?} */\n            const previousWidth = this._lastBoundingBoxSize.width;\n            width = smallestDistanceToViewportEdge * 2;\n            left = origin.x - smallestDistanceToViewportEdge;\n            if (width > previousWidth && !this._isInitialRender && !this._growAfterOpen) {\n                left = origin.x - (previousWidth / 2);\n            }\n        }\n        return { top: (/** @type {?} */ (top)), left: (/** @type {?} */ (left)), bottom: (/** @type {?} */ (bottom)), right: (/** @type {?} */ (right)), width, height };\n    }\n    /**\n     * Sets the position and size of the overlay's sizing wrapper. The wrapper is positioned on the\n     * origin's connection point and stetches to the bounds of the viewport.\n     *\n     * @private\n     * @param {?} origin The point on the origin element where the overlay is connected.\n     * @param {?} position The position preference\n     * @return {?}\n     */\n    _setBoundingBoxStyles(origin, position) {\n        /** @type {?} */\n        const boundingBoxRect = this._calculateBoundingBoxRect(origin, position);\n        // It's weird if the overlay *grows* while scrolling, so we take the last size into account\n        // when applying a new size.\n        if (!this._isInitialRender && !this._growAfterOpen) {\n            boundingBoxRect.height = Math.min(boundingBoxRect.height, this._lastBoundingBoxSize.height);\n            boundingBoxRect.width = Math.min(boundingBoxRect.width, this._lastBoundingBoxSize.width);\n        }\n        /** @type {?} */\n        const styles = (/** @type {?} */ ({}));\n        if (this._hasExactPosition()) {\n            styles.top = styles.left = '0';\n            styles.bottom = styles.right = styles.maxHeight = styles.maxWidth = '';\n            styles.width = styles.height = '100%';\n        }\n        else {\n            /** @type {?} */\n            const maxHeight = this._overlayRef.getConfig().maxHeight;\n            /** @type {?} */\n            const maxWidth = this._overlayRef.getConfig().maxWidth;\n            styles.height = coerceCssPixelValue(boundingBoxRect.height);\n            styles.top = coerceCssPixelValue(boundingBoxRect.top);\n            styles.bottom = coerceCssPixelValue(boundingBoxRect.bottom);\n            styles.width = coerceCssPixelValue(boundingBoxRect.width);\n            styles.left = coerceCssPixelValue(boundingBoxRect.left);\n            styles.right = coerceCssPixelValue(boundingBoxRect.right);\n            // Push the pane content towards the proper direction.\n            if (position.overlayX === 'center') {\n                styles.alignItems = 'center';\n            }\n            else {\n                styles.alignItems = position.overlayX === 'end' ? 'flex-end' : 'flex-start';\n            }\n            if (position.overlayY === 'center') {\n                styles.justifyContent = 'center';\n            }\n            else {\n                styles.justifyContent = position.overlayY === 'bottom' ? 'flex-end' : 'flex-start';\n            }\n            if (maxHeight) {\n                styles.maxHeight = coerceCssPixelValue(maxHeight);\n            }\n            if (maxWidth) {\n                styles.maxWidth = coerceCssPixelValue(maxWidth);\n            }\n        }\n        this._lastBoundingBoxSize = boundingBoxRect;\n        extendStyles((/** @type {?} */ (this._boundingBox)).style, styles);\n    }\n    /**\n     * Resets the styles for the bounding box so that a new positioning can be computed.\n     * @private\n     * @return {?}\n     */\n    _resetBoundingBoxStyles() {\n        extendStyles((/** @type {?} */ (this._boundingBox)).style, (/** @type {?} */ ({\n            top: '0',\n            left: '0',\n            right: '0',\n            bottom: '0',\n            height: '',\n            width: '',\n            alignItems: '',\n            justifyContent: '',\n        })));\n    }\n    /**\n     * Resets the styles for the overlay pane so that a new positioning can be computed.\n     * @private\n     * @return {?}\n     */\n    _resetOverlayElementStyles() {\n        extendStyles(this._pane.style, (/** @type {?} */ ({\n            top: '',\n            left: '',\n            bottom: '',\n            right: '',\n            position: '',\n            transform: '',\n        })));\n    }\n    /**\n     * Sets positioning styles to the overlay element.\n     * @private\n     * @param {?} originPoint\n     * @param {?} position\n     * @return {?}\n     */\n    _setOverlayElementStyles(originPoint, position) {\n        /** @type {?} */\n        const styles = (/** @type {?} */ ({}));\n        /** @type {?} */\n        const hasExactPosition = this._hasExactPosition();\n        /** @type {?} */\n        const hasFlexibleDimensions = this._hasFlexibleDimensions;\n        /** @type {?} */\n        const config = this._overlayRef.getConfig();\n        if (hasExactPosition) {\n            /** @type {?} */\n            const scrollPosition = this._viewportRuler.getViewportScrollPosition();\n            extendStyles(styles, this._getExactOverlayY(position, originPoint, scrollPosition));\n            extendStyles(styles, this._getExactOverlayX(position, originPoint, scrollPosition));\n        }\n        else {\n            styles.position = 'static';\n        }\n        // Use a transform to apply the offsets. We do this because the `center` positions rely on\n        // being in the normal flex flow and setting a `top` / `left` at all will completely throw\n        // off the position. We also can't use margins, because they won't have an effect in some\n        // cases where the element doesn't have anything to \"push off of\". Finally, this works\n        // better both with flexible and non-flexible positioning.\n        /** @type {?} */\n        let transformString = '';\n        /** @type {?} */\n        let offsetX = this._getOffset(position, 'x');\n        /** @type {?} */\n        let offsetY = this._getOffset(position, 'y');\n        if (offsetX) {\n            transformString += `translateX(${offsetX}px) `;\n        }\n        if (offsetY) {\n            transformString += `translateY(${offsetY}px)`;\n        }\n        styles.transform = transformString.trim();\n        // If a maxWidth or maxHeight is specified on the overlay, we remove them. We do this because\n        // we need these values to both be set to \"100%\" for the automatic flexible sizing to work.\n        // The maxHeight and maxWidth are set on the boundingBox in order to enforce the constraint.\n        // Note that this doesn't apply when we have an exact position, in which case we do want to\n        // apply them because they'll be cleared from the bounding box.\n        if (config.maxHeight) {\n            if (hasExactPosition) {\n                styles.maxHeight = coerceCssPixelValue(config.maxHeight);\n            }\n            else if (hasFlexibleDimensions) {\n                styles.maxHeight = '';\n            }\n        }\n        if (config.maxWidth) {\n            if (hasExactPosition) {\n                styles.maxWidth = coerceCssPixelValue(config.maxWidth);\n            }\n            else if (hasFlexibleDimensions) {\n                styles.maxWidth = '';\n            }\n        }\n        extendStyles(this._pane.style, styles);\n    }\n    /**\n     * Gets the exact top/bottom for the overlay when not using flexible sizing or when pushing.\n     * @private\n     * @param {?} position\n     * @param {?} originPoint\n     * @param {?} scrollPosition\n     * @return {?}\n     */\n    _getExactOverlayY(position, originPoint, scrollPosition) {\n        // Reset any existing styles. This is necessary in case the\n        // preferred position has changed since the last `apply`.\n        /** @type {?} */\n        let styles = (/** @type {?} */ ({ top: '', bottom: '' }));\n        /** @type {?} */\n        let overlayPoint = this._getOverlayPoint(originPoint, this._overlayRect, position);\n        if (this._isPushed) {\n            overlayPoint = this._pushOverlayOnScreen(overlayPoint, this._overlayRect, scrollPosition);\n        }\n        /** @type {?} */\n        let virtualKeyboardOffset = this._overlayContainer.getContainerElement().getBoundingClientRect().top;\n        // Normally this would be zero, however when the overlay is attached to an input (e.g. in an\n        // autocomplete), mobile browsers will shift everything in order to put the input in the middle\n        // of the screen and to make space for the virtual keyboard. We need to account for this offset,\n        // otherwise our positioning will be thrown off.\n        overlayPoint.y -= virtualKeyboardOffset;\n        // We want to set either `top` or `bottom` based on whether the overlay wants to appear\n        // above or below the origin and the direction in which the element will expand.\n        if (position.overlayY === 'bottom') {\n            // When using `bottom`, we adjust the y position such that it is the distance\n            // from the bottom of the viewport rather than the top.\n            /** @type {?} */\n            const documentHeight = (/** @type {?} */ (this._document.documentElement)).clientHeight;\n            styles.bottom = `${documentHeight - (overlayPoint.y + this._overlayRect.height)}px`;\n        }\n        else {\n            styles.top = coerceCssPixelValue(overlayPoint.y);\n        }\n        return styles;\n    }\n    /**\n     * Gets the exact left/right for the overlay when not using flexible sizing or when pushing.\n     * @private\n     * @param {?} position\n     * @param {?} originPoint\n     * @param {?} scrollPosition\n     * @return {?}\n     */\n    _getExactOverlayX(position, originPoint, scrollPosition) {\n        // Reset any existing styles. This is necessary in case the preferred position has\n        // changed since the last `apply`.\n        /** @type {?} */\n        let styles = (/** @type {?} */ ({ left: '', right: '' }));\n        /** @type {?} */\n        let overlayPoint = this._getOverlayPoint(originPoint, this._overlayRect, position);\n        if (this._isPushed) {\n            overlayPoint = this._pushOverlayOnScreen(overlayPoint, this._overlayRect, scrollPosition);\n        }\n        // We want to set either `left` or `right` based on whether the overlay wants to appear \"before\"\n        // or \"after\" the origin, which determines the direction in which the element will expand.\n        // For the horizontal axis, the meaning of \"before\" and \"after\" change based on whether the\n        // page is in RTL or LTR.\n        /** @type {?} */\n        let horizontalStyleProperty;\n        if (this._isRtl()) {\n            horizontalStyleProperty = position.overlayX === 'end' ? 'left' : 'right';\n        }\n        else {\n            horizontalStyleProperty = position.overlayX === 'end' ? 'right' : 'left';\n        }\n        // When we're setting `right`, we adjust the x position such that it is the distance\n        // from the right edge of the viewport rather than the left edge.\n        if (horizontalStyleProperty === 'right') {\n            /** @type {?} */\n            const documentWidth = (/** @type {?} */ (this._document.documentElement)).clientWidth;\n            styles.right = `${documentWidth - (overlayPoint.x + this._overlayRect.width)}px`;\n        }\n        else {\n            styles.left = coerceCssPixelValue(overlayPoint.x);\n        }\n        return styles;\n    }\n    /**\n     * Gets the view properties of the trigger and overlay, including whether they are clipped\n     * or completely outside the view of any of the strategy's scrollables.\n     * @private\n     * @return {?}\n     */\n    _getScrollVisibility() {\n        // Note: needs fresh rects since the position could've changed.\n        /** @type {?} */\n        const originBounds = this._getOriginRect();\n        /** @type {?} */\n        const overlayBounds = this._pane.getBoundingClientRect();\n        // TODO(jelbourn): instead of needing all of the client rects for these scrolling containers\n        // every time, we should be able to use the scrollTop of the containers if the size of those\n        // containers hasn't changed.\n        /** @type {?} */\n        const scrollContainerBounds = this._scrollables.map((/**\n         * @param {?} scrollable\n         * @return {?}\n         */\n        scrollable => {\n            return scrollable.getElementRef().nativeElement.getBoundingClientRect();\n        }));\n        return {\n            isOriginClipped: isElementClippedByScrolling(originBounds, scrollContainerBounds),\n            isOriginOutsideView: isElementScrolledOutsideView(originBounds, scrollContainerBounds),\n            isOverlayClipped: isElementClippedByScrolling(overlayBounds, scrollContainerBounds),\n            isOverlayOutsideView: isElementScrolledOutsideView(overlayBounds, scrollContainerBounds),\n        };\n    }\n    /**\n     * Subtracts the amount that an element is overflowing on an axis from its length.\n     * @private\n     * @param {?} length\n     * @param {...?} overflows\n     * @return {?}\n     */\n    _subtractOverflows(length, ...overflows) {\n        return overflows.reduce((/**\n         * @param {?} currentValue\n         * @param {?} currentOverflow\n         * @return {?}\n         */\n        (currentValue, currentOverflow) => {\n            return currentValue - Math.max(currentOverflow, 0);\n        }), length);\n    }\n    /**\n     * Narrows the given viewport rect by the current _viewportMargin.\n     * @private\n     * @return {?}\n     */\n    _getNarrowedViewportRect() {\n        // We recalculate the viewport rect here ourselves, rather than using the ViewportRuler,\n        // because we want to use the `clientWidth` and `clientHeight` as the base. The difference\n        // being that the client properties don't include the scrollbar, as opposed to `innerWidth`\n        // and `innerHeight` that do. This is necessary, because the overlay container uses\n        // 100% `width` and `height` which don't include the scrollbar either.\n        /** @type {?} */\n        const width = (/** @type {?} */ (this._document.documentElement)).clientWidth;\n        /** @type {?} */\n        const height = (/** @type {?} */ (this._document.documentElement)).clientHeight;\n        /** @type {?} */\n        const scrollPosition = this._viewportRuler.getViewportScrollPosition();\n        return {\n            top: scrollPosition.top + this._viewportMargin,\n            left: scrollPosition.left + this._viewportMargin,\n            right: scrollPosition.left + width - this._viewportMargin,\n            bottom: scrollPosition.top + height - this._viewportMargin,\n            width: width - (2 * this._viewportMargin),\n            height: height - (2 * this._viewportMargin),\n        };\n    }\n    /**\n     * Whether the we're dealing with an RTL context\n     * @private\n     * @return {?}\n     */\n    _isRtl() {\n        return this._overlayRef.getDirection() === 'rtl';\n    }\n    /**\n     * Determines whether the overlay uses exact or flexible positioning.\n     * @private\n     * @return {?}\n     */\n    _hasExactPosition() {\n        return !this._hasFlexibleDimensions || this._isPushed;\n    }\n    /**\n     * Retrieves the offset of a position along the x or y axis.\n     * @private\n     * @param {?} position\n     * @param {?} axis\n     * @return {?}\n     */\n    _getOffset(position, axis) {\n        if (axis === 'x') {\n            // We don't do something like `position['offset' + axis]` in\n            // order to avoid breking minifiers that rename properties.\n            return position.offsetX == null ? this._offsetX : position.offsetX;\n        }\n        return position.offsetY == null ? this._offsetY : position.offsetY;\n    }\n    /**\n     * Validates that the current position match the expected values.\n     * @private\n     * @return {?}\n     */\n    _validatePositions() {\n        if (!this._preferredPositions.length) {\n            throw Error('FlexibleConnectedPositionStrategy: At least one position is required.');\n        }\n        // TODO(crisbeto): remove these once Angular's template type\n        // checking is advanced enough to catch these cases.\n        this._preferredPositions.forEach((/**\n         * @param {?} pair\n         * @return {?}\n         */\n        pair => {\n            validateHorizontalPosition('originX', pair.originX);\n            validateVerticalPosition('originY', pair.originY);\n            validateHorizontalPosition('overlayX', pair.overlayX);\n            validateVerticalPosition('overlayY', pair.overlayY);\n        }));\n    }\n    /**\n     * Adds a single CSS class or an array of classes on the overlay panel.\n     * @private\n     * @param {?} cssClasses\n     * @return {?}\n     */\n    _addPanelClasses(cssClasses) {\n        if (this._pane) {\n            coerceArray(cssClasses).forEach((/**\n             * @param {?} cssClass\n             * @return {?}\n             */\n            cssClass => {\n                if (cssClass !== '' && this._appliedPanelClasses.indexOf(cssClass) === -1) {\n                    this._appliedPanelClasses.push(cssClass);\n                    this._pane.classList.add(cssClass);\n                }\n            }));\n        }\n    }\n    /**\n     * Clears the classes that the position strategy has applied from the overlay panel.\n     * @private\n     * @return {?}\n     */\n    _clearPanelClasses() {\n        if (this._pane) {\n            this._appliedPanelClasses.forEach((/**\n             * @param {?} cssClass\n             * @return {?}\n             */\n            cssClass => {\n                this._pane.classList.remove(cssClass);\n            }));\n            this._appliedPanelClasses = [];\n        }\n    }\n    /**\n     * Returns the ClientRect of the current origin.\n     * @private\n     * @return {?}\n     */\n    _getOriginRect() {\n        /** @type {?} */\n        const origin = this._origin;\n        if (origin instanceof ElementRef) {\n            return origin.nativeElement.getBoundingClientRect();\n        }\n        // Check for Element so SVG elements are also supported.\n        if (origin instanceof Element) {\n            return origin.getBoundingClientRect();\n        }\n        /** @type {?} */\n        const width = origin.width || 0;\n        /** @type {?} */\n        const height = origin.height || 0;\n        // If the origin is a point, return a client rect as if it was a 0x0 element at the point.\n        return {\n            top: origin.y,\n            bottom: origin.y + height,\n            left: origin.x,\n            right: origin.x + width,\n            height,\n            width\n        };\n    }\n}\nif (false) {\n    /**\n     * The overlay to which this strategy is attached.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._overlayRef;\n    /**\n     * Whether we're performing the very first positioning of the overlay.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._isInitialRender;\n    /**\n     * Last size used for the bounding box. Used to avoid resizing the overlay after open.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._lastBoundingBoxSize;\n    /**\n     * Whether the overlay was pushed in a previous positioning.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._isPushed;\n    /**\n     * Whether the overlay can be pushed on-screen on the initial open.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._canPush;\n    /**\n     * Whether the overlay can grow via flexible width/height after the initial open.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._growAfterOpen;\n    /**\n     * Whether the overlay's width and height can be constrained to fit within the viewport.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._hasFlexibleDimensions;\n    /**\n     * Whether the overlay position is locked.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._positionLocked;\n    /**\n     * Cached origin dimensions\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._originRect;\n    /**\n     * Cached overlay dimensions\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._overlayRect;\n    /**\n     * Cached viewport dimensions\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._viewportRect;\n    /**\n     * Amount of space that must be maintained between the overlay and the edge of the viewport.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._viewportMargin;\n    /**\n     * The Scrollable containers used to check scrollable view properties on position change.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._scrollables;\n    /**\n     * Ordered list of preferred positions, from most to least desirable.\n     * @type {?}\n     */\n    FlexibleConnectedPositionStrategy.prototype._preferredPositions;\n    /**\n     * The origin element against which the overlay will be positioned.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._origin;\n    /**\n     * The overlay pane element.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._pane;\n    /**\n     * Whether the strategy has been disposed of already.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._isDisposed;\n    /**\n     * Parent element for the overlay panel used to constrain the overlay panel's size to fit\n     * within the viewport.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._boundingBox;\n    /**\n     * The last position to have been calculated as the best fit position.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._lastPosition;\n    /**\n     * Subject that emits whenever the position changes.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._positionChanges;\n    /**\n     * Subscription to viewport size changes.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._resizeSubscription;\n    /**\n     * Default offset for the overlay along the x axis.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._offsetX;\n    /**\n     * Default offset for the overlay along the y axis.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._offsetY;\n    /**\n     * Selector to be used when finding the elements on which to set the transform origin.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._transformOriginSelector;\n    /**\n     * Keeps track of the CSS classes that the position strategy has applied on the overlay panel.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._appliedPanelClasses;\n    /**\n     * Amount by which the overlay was pushed in each axis during the last time it was positioned.\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._previousPushAmount;\n    /**\n     * Observable sequence of position changes.\n     * @type {?}\n     */\n    FlexibleConnectedPositionStrategy.prototype.positionChanges;\n    /**\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._platform;\n    /**\n     * @type {?}\n     * @private\n     */\n    FlexibleConnectedPositionStrategy.prototype._overlayContainer;\n}\n/**\n * A simple (x, y) coordinate.\n * @record\n */\nfunction Point() { }\nif (false) {\n    /** @type {?} */\n    Point.prototype.x;\n    /** @type {?} */\n    Point.prototype.y;\n}\n/**\n * Record of measurements for how an overlay (at a given position) fits into the viewport.\n * @record\n */\nfunction OverlayFit() { }\nif (false) {\n    /**\n     * Whether the overlay fits completely in the viewport.\n     * @type {?}\n     */\n    OverlayFit.prototype.isCompletelyWithinViewport;\n    /**\n     * Whether the overlay fits in the viewport on the y-axis.\n     * @type {?}\n     */\n    OverlayFit.prototype.fitsInViewportVertically;\n    /**\n     * Whether the overlay fits in the viewport on the x-axis.\n     * @type {?}\n     */\n    OverlayFit.prototype.fitsInViewportHorizontally;\n    /**\n     * The total visible area (in px^2) of the overlay inside the viewport.\n     * @type {?}\n     */\n    OverlayFit.prototype.visibleArea;\n}\n/**\n * Record of the measurments determining whether an overlay will fit in a specific position.\n * @record\n */\nfunction FallbackPosition() { }\nif (false) {\n    /** @type {?} */\n    FallbackPosition.prototype.position;\n    /** @type {?} */\n    FallbackPosition.prototype.originPoint;\n    /** @type {?} */\n    FallbackPosition.prototype.overlayPoint;\n    /** @type {?} */\n    FallbackPosition.prototype.overlayFit;\n    /** @type {?} */\n    FallbackPosition.prototype.overlayRect;\n}\n/**\n * Position and size of the overlay sizing wrapper for a specific position.\n * @record\n */\nfunction BoundingBoxRect() { }\nif (false) {\n    /** @type {?} */\n    BoundingBoxRect.prototype.top;\n    /** @type {?} */\n    BoundingBoxRect.prototype.left;\n    /** @type {?} */\n    BoundingBoxRect.prototype.bottom;\n    /** @type {?} */\n    BoundingBoxRect.prototype.right;\n    /** @type {?} */\n    BoundingBoxRect.prototype.height;\n    /** @type {?} */\n    BoundingBoxRect.prototype.width;\n}\n/**\n * Record of measures determining how well a given position will fit with flexible dimensions.\n * @record\n */\nfunction FlexibleFit() { }\nif (false) {\n    /** @type {?} */\n    FlexibleFit.prototype.position;\n    /** @type {?} */\n    FlexibleFit.prototype.origin;\n    /** @type {?} */\n    FlexibleFit.prototype.overlayRect;\n    /** @type {?} */\n    FlexibleFit.prototype.boundingBoxRect;\n}\n/**\n * A connected position as specified by the user.\n * @record\n */\nfunction ConnectedPosition() { }\nif (false) {\n    /** @type {?} */\n    ConnectedPosition.prototype.originX;\n    /** @type {?} */\n    ConnectedPosition.prototype.originY;\n    /** @type {?} */\n    ConnectedPosition.prototype.overlayX;\n    /** @type {?} */\n    ConnectedPosition.prototype.overlayY;\n    /** @type {?|undefined} */\n    ConnectedPosition.prototype.weight;\n    /** @type {?|undefined} */\n    ConnectedPosition.prototype.offsetX;\n    /** @type {?|undefined} */\n    ConnectedPosition.prototype.offsetY;\n    /** @type {?|undefined} */\n    ConnectedPosition.prototype.panelClass;\n}\n/**\n * Shallow-extends a stylesheet object with another stylesheet object.\n * @param {?} destination\n * @param {?} source\n * @return {?}\n */\nfunction extendStyles(destination, source) {\n    for (let key in source) {\n        if (source.hasOwnProperty(key)) {\n            destination[key] = source[key];\n        }\n    }\n    return destination;\n}\n/**\n * Extracts the pixel value as a number from a value, if it's a number\n * or a CSS pixel string (e.g. `1337px`). Otherwise returns null.\n * @param {?} input\n * @return {?}\n */\nfunction getPixelValue(input) {\n    if (typeof input !== 'number' && input != null) {\n        const [value, units] = input.split(cssUnitPattern);\n        return (!units || units === 'px') ? parseFloat(value) : null;\n    }\n    return input || null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/position/connected-position-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * implicit position relative to some origin element. The relative position is defined in terms of\n * a point on the origin element that is connected to a point on the overlay element. For example,\n * a basic dropdown is connecting the bottom-left corner of the origin to the top-left corner\n * of the overlay.\n * @deprecated Use `FlexibleConnectedPositionStrategy` instead.\n * \\@breaking-change 8.0.0\n */\nclass ConnectedPositionStrategy {\n    /**\n     * @param {?} originPos\n     * @param {?} overlayPos\n     * @param {?} connectedTo\n     * @param {?} viewportRuler\n     * @param {?} document\n     * @param {?} platform\n     * @param {?} overlayContainer\n     */\n    constructor(originPos, overlayPos, connectedTo, viewportRuler, document, platform, overlayContainer) {\n        /**\n         * Ordered list of preferred positions, from most to least desirable.\n         */\n        this._preferredPositions = [];\n        // Since the `ConnectedPositionStrategy` is deprecated and we don't want to maintain\n        // the extra logic, we create an instance of the positioning strategy that has some\n        // defaults that make it behave as the old position strategy and to which we'll\n        // proxy all of the API calls.\n        this._positionStrategy = new FlexibleConnectedPositionStrategy(connectedTo, viewportRuler, document, platform, overlayContainer)\n            .withFlexibleDimensions(false)\n            .withPush(false)\n            .withViewportMargin(0);\n        this.withFallbackPosition(originPos, overlayPos);\n    }\n    /**\n     * Whether the we're dealing with an RTL context\n     * @return {?}\n     */\n    get _isRtl() {\n        return this._overlayRef.getDirection() === 'rtl';\n    }\n    /**\n     * Emits an event when the connection point changes.\n     * @return {?}\n     */\n    get onPositionChange() {\n        return this._positionStrategy.positionChanges;\n    }\n    /**\n     * Ordered list of preferred positions, from most to least desirable.\n     * @return {?}\n     */\n    get positions() {\n        return this._preferredPositions;\n    }\n    /**\n     * Attach this position strategy to an overlay.\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        this._overlayRef = overlayRef;\n        this._positionStrategy.attach(overlayRef);\n        if (this._direction) {\n            overlayRef.setDirection(this._direction);\n            this._direction = null;\n        }\n    }\n    /**\n     * Disposes all resources used by the position strategy.\n     * @return {?}\n     */\n    dispose() {\n        this._positionStrategy.dispose();\n    }\n    /**\n     * \\@docs-private\n     * @return {?}\n     */\n    detach() {\n        this._positionStrategy.detach();\n    }\n    /**\n     * Updates the position of the overlay element, using whichever preferred position relative\n     * to the origin fits on-screen.\n     * \\@docs-private\n     * @return {?}\n     */\n    apply() {\n        this._positionStrategy.apply();\n    }\n    /**\n     * Re-positions the overlay element with the trigger in its last calculated position,\n     * even if a position higher in the \"preferred positions\" list would now fit. This\n     * allows one to re-align the panel without changing the orientation of the panel.\n     * @return {?}\n     */\n    recalculateLastPosition() {\n        this._positionStrategy.reapplyLastPosition();\n    }\n    /**\n     * Sets the list of Scrollable containers that host the origin element so that\n     * on reposition we can evaluate if it or the overlay has been clipped or outside view. Every\n     * Scrollable must be an ancestor element of the strategy's origin element.\n     * @param {?} scrollables\n     * @return {?}\n     */\n    withScrollableContainers(scrollables) {\n        this._positionStrategy.withScrollableContainers(scrollables);\n    }\n    /**\n     * Adds a new preferred fallback position.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} originPos\n     * @param {?} overlayPos\n     * @param {?=} offsetX\n     * @param {?=} offsetY\n     * @return {THIS}\n     */\n    withFallbackPosition(originPos, overlayPos, offsetX, offsetY) {\n        /** @type {?} */\n        const position = new ConnectionPositionPair(originPos, overlayPos, offsetX, offsetY);\n        (/** @type {?} */ (this))._preferredPositions.push(position);\n        (/** @type {?} */ (this))._positionStrategy.withPositions((/** @type {?} */ (this))._preferredPositions);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the layout direction so the overlay's position can be adjusted to match.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} dir New layout direction.\n     * @return {THIS}\n     */\n    withDirection(dir) {\n        // Since the direction might be declared before the strategy is attached,\n        // we save the value in a temporary property and we'll transfer it to the\n        // overlay ref on attachment.\n        if ((/** @type {?} */ (this))._overlayRef) {\n            (/** @type {?} */ (this))._overlayRef.setDirection(dir);\n        }\n        else {\n            (/** @type {?} */ (this))._direction = dir;\n        }\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets an offset for the overlay's connection point on the x-axis\n     * @template THIS\n     * @this {THIS}\n     * @param {?} offset New offset in the X axis.\n     * @return {THIS}\n     */\n    withOffsetX(offset) {\n        (/** @type {?} */ (this))._positionStrategy.withDefaultOffsetX(offset);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets an offset for the overlay's connection point on the y-axis\n     * @template THIS\n     * @this {THIS}\n     * @param {?} offset New offset in the Y axis.\n     * @return {THIS}\n     */\n    withOffsetY(offset) {\n        (/** @type {?} */ (this))._positionStrategy.withDefaultOffsetY(offset);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets whether the overlay's position should be locked in after it is positioned\n     * initially. When an overlay is locked in, it won't attempt to reposition itself\n     * when the position is re-applied (e.g. when the user scrolls away).\n     * @template THIS\n     * @this {THIS}\n     * @param {?} isLocked Whether the overlay should locked in.\n     * @return {THIS}\n     */\n    withLockedPosition(isLocked) {\n        (/** @type {?} */ (this))._positionStrategy.withLockedPosition(isLocked);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Overwrites the current set of positions with an array of new ones.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} positions Position pairs to be set on the strategy.\n     * @return {THIS}\n     */\n    withPositions(positions) {\n        (/** @type {?} */ (this))._preferredPositions = positions.slice();\n        (/** @type {?} */ (this))._positionStrategy.withPositions((/** @type {?} */ (this))._preferredPositions);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the origin element, relative to which to position the overlay.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} origin Reference to the new origin element.\n     * @return {THIS}\n     */\n    setOrigin(origin) {\n        (/** @type {?} */ (this))._positionStrategy.setOrigin(origin);\n        return (/** @type {?} */ (this));\n    }\n}\nif (false) {\n    /**\n     * Reference to the underlying position strategy to which all the API calls are proxied.\n     * \\@docs-private\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._positionStrategy;\n    /**\n     * The overlay to which this strategy is attached.\n     * @type {?}\n     * @private\n     */\n    ConnectedPositionStrategy.prototype._overlayRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    ConnectedPositionStrategy.prototype._direction;\n    /**\n     * Ordered list of preferred positions, from most to least desirable.\n     * @type {?}\n     */\n    ConnectedPositionStrategy.prototype._preferredPositions;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/position/global-position-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Class to be added to the overlay pane wrapper.\n * @type {?}\n */\nconst wrapperClass = 'cdk-global-overlay-wrapper';\n/**\n * A strategy for positioning overlays. Using this strategy, an overlay is given an\n * explicit position relative to the browser's viewport. We use flexbox, instead of\n * transforms, in order to avoid issues with subpixel rendering which can cause the\n * element to become blurry.\n */\nclass GlobalPositionStrategy {\n    constructor() {\n        this._cssPosition = 'static';\n        this._topOffset = '';\n        this._bottomOffset = '';\n        this._leftOffset = '';\n        this._rightOffset = '';\n        this._alignItems = '';\n        this._justifyContent = '';\n        this._width = '';\n        this._height = '';\n    }\n    /**\n     * @param {?} overlayRef\n     * @return {?}\n     */\n    attach(overlayRef) {\n        /** @type {?} */\n        const config = overlayRef.getConfig();\n        this._overlayRef = overlayRef;\n        if (this._width && !config.width) {\n            overlayRef.updateSize({ width: this._width });\n        }\n        if (this._height && !config.height) {\n            overlayRef.updateSize({ height: this._height });\n        }\n        overlayRef.hostElement.classList.add(wrapperClass);\n        this._isDisposed = false;\n    }\n    /**\n     * Sets the top position of the overlay. Clears any previously set vertical position.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} value New top offset.\n     * @return {THIS}\n     */\n    top(value = '') {\n        (/** @type {?} */ (this))._bottomOffset = '';\n        (/** @type {?} */ (this))._topOffset = value;\n        (/** @type {?} */ (this))._alignItems = 'flex-start';\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the left position of the overlay. Clears any previously set horizontal position.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} value New left offset.\n     * @return {THIS}\n     */\n    left(value = '') {\n        (/** @type {?} */ (this))._rightOffset = '';\n        (/** @type {?} */ (this))._leftOffset = value;\n        (/** @type {?} */ (this))._justifyContent = 'flex-start';\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the bottom position of the overlay. Clears any previously set vertical position.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} value New bottom offset.\n     * @return {THIS}\n     */\n    bottom(value = '') {\n        (/** @type {?} */ (this))._topOffset = '';\n        (/** @type {?} */ (this))._bottomOffset = value;\n        (/** @type {?} */ (this))._alignItems = 'flex-end';\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the right position of the overlay. Clears any previously set horizontal position.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} value New right offset.\n     * @return {THIS}\n     */\n    right(value = '') {\n        (/** @type {?} */ (this))._leftOffset = '';\n        (/** @type {?} */ (this))._rightOffset = value;\n        (/** @type {?} */ (this))._justifyContent = 'flex-end';\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the overlay width and clears any previously set width.\n     * @deprecated Pass the `width` through the `OverlayConfig`.\n     * \\@breaking-change 8.0.0\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} value New width for the overlay\n     * @return {THIS}\n     */\n    width(value = '') {\n        if ((/** @type {?} */ (this))._overlayRef) {\n            (/** @type {?} */ (this))._overlayRef.updateSize({ width: value });\n        }\n        else {\n            (/** @type {?} */ (this))._width = value;\n        }\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the overlay height and clears any previously set height.\n     * @deprecated Pass the `height` through the `OverlayConfig`.\n     * \\@breaking-change 8.0.0\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} value New height for the overlay\n     * @return {THIS}\n     */\n    height(value = '') {\n        if ((/** @type {?} */ (this))._overlayRef) {\n            (/** @type {?} */ (this))._overlayRef.updateSize({ height: value });\n        }\n        else {\n            (/** @type {?} */ (this))._height = value;\n        }\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Centers the overlay horizontally with an optional offset.\n     * Clears any previously set horizontal position.\n     *\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} offset Overlay offset from the horizontal center.\n     * @return {THIS}\n     */\n    centerHorizontally(offset = '') {\n        (/** @type {?} */ (this)).left(offset);\n        (/** @type {?} */ (this))._justifyContent = 'center';\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Centers the overlay vertically with an optional offset.\n     * Clears any previously set vertical position.\n     *\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} offset Overlay offset from the vertical center.\n     * @return {THIS}\n     */\n    centerVertically(offset = '') {\n        (/** @type {?} */ (this)).top(offset);\n        (/** @type {?} */ (this))._alignItems = 'center';\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Apply the position to the element.\n     * \\@docs-private\n     * @return {?}\n     */\n    apply() {\n        // Since the overlay ref applies the strategy asynchronously, it could\n        // have been disposed before it ends up being applied. If that is the\n        // case, we shouldn't do anything.\n        if (!this._overlayRef || !this._overlayRef.hasAttached()) {\n            return;\n        }\n        /** @type {?} */\n        const styles = this._overlayRef.overlayElement.style;\n        /** @type {?} */\n        const parentStyles = this._overlayRef.hostElement.style;\n        /** @type {?} */\n        const config = this._overlayRef.getConfig();\n        const { width, height, maxWidth, maxHeight } = config;\n        /** @type {?} */\n        const shouldBeFlushHorizontally = (width === '100%' || width === '100vw') &&\n            (!maxWidth || maxWidth === '100%' || maxWidth === '100vw');\n        /** @type {?} */\n        const shouldBeFlushVertically = (height === '100%' || height === '100vh') &&\n            (!maxHeight || maxHeight === '100%' || maxHeight === '100vh');\n        styles.position = this._cssPosition;\n        styles.marginLeft = shouldBeFlushHorizontally ? '0' : this._leftOffset;\n        styles.marginTop = shouldBeFlushVertically ? '0' : this._topOffset;\n        styles.marginBottom = this._bottomOffset;\n        styles.marginRight = this._rightOffset;\n        if (shouldBeFlushHorizontally) {\n            parentStyles.justifyContent = 'flex-start';\n        }\n        else if (this._justifyContent === 'center') {\n            parentStyles.justifyContent = 'center';\n        }\n        else if (this._overlayRef.getConfig().direction === 'rtl') {\n            // In RTL the browser will invert `flex-start` and `flex-end` automatically, but we\n            // don't want that because our positioning is explicitly `left` and `right`, hence\n            // why we do another inversion to ensure that the overlay stays in the same position.\n            // TODO: reconsider this if we add `start` and `end` methods.\n            if (this._justifyContent === 'flex-start') {\n                parentStyles.justifyContent = 'flex-end';\n            }\n            else if (this._justifyContent === 'flex-end') {\n                parentStyles.justifyContent = 'flex-start';\n            }\n        }\n        else {\n            parentStyles.justifyContent = this._justifyContent;\n        }\n        parentStyles.alignItems = shouldBeFlushVertically ? 'flex-start' : this._alignItems;\n    }\n    /**\n     * Cleans up the DOM changes from the position strategy.\n     * \\@docs-private\n     * @return {?}\n     */\n    dispose() {\n        if (this._isDisposed || !this._overlayRef) {\n            return;\n        }\n        /** @type {?} */\n        const styles = this._overlayRef.overlayElement.style;\n        /** @type {?} */\n        const parent = this._overlayRef.hostElement;\n        /** @type {?} */\n        const parentStyles = parent.style;\n        parent.classList.remove(wrapperClass);\n        parentStyles.justifyContent = parentStyles.alignItems = styles.marginTop =\n            styles.marginBottom = styles.marginLeft = styles.marginRight = styles.position = '';\n        this._overlayRef = (/** @type {?} */ (null));\n        this._isDisposed = true;\n    }\n}\nif (false) {\n    /**\n     * The overlay to which this strategy is attached.\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._overlayRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._cssPosition;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._topOffset;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._bottomOffset;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._leftOffset;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._rightOffset;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._alignItems;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._justifyContent;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._width;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._height;\n    /**\n     * @type {?}\n     * @private\n     */\n    GlobalPositionStrategy.prototype._isDisposed;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/position/overlay-position-builder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Builder for overlay position strategy.\n */\nclass OverlayPositionBuilder {\n    /**\n     * @param {?} _viewportRuler\n     * @param {?} _document\n     * @param {?} _platform\n     * @param {?} _overlayContainer\n     */\n    constructor(_viewportRuler, _document, _platform, _overlayContainer) {\n        this._viewportRuler = _viewportRuler;\n        this._document = _document;\n        this._platform = _platform;\n        this._overlayContainer = _overlayContainer;\n    }\n    /**\n     * Creates a global position strategy.\n     * @return {?}\n     */\n    global() {\n        return new GlobalPositionStrategy();\n    }\n    /**\n     * Creates a relative position strategy.\n     * @deprecated Use `flexibleConnectedTo` instead.\n     * \\@breaking-change 8.0.0\n     * @param {?} elementRef\n     * @param {?} originPos\n     * @param {?} overlayPos\n     * @return {?}\n     */\n    connectedTo(elementRef, originPos, overlayPos) {\n        return new ConnectedPositionStrategy(originPos, overlayPos, elementRef, this._viewportRuler, this._document, this._platform, this._overlayContainer);\n    }\n    /**\n     * Creates a flexible position strategy.\n     * @param {?} origin Origin relative to which to position the overlay.\n     * @return {?}\n     */\n    flexibleConnectedTo(origin) {\n        return new FlexibleConnectedPositionStrategy(origin, this._viewportRuler, this._document, this._platform, this._overlayContainer);\n    }\n}\nOverlayPositionBuilder.ɵfac = function OverlayPositionBuilder_Factory(t) { return new (t || OverlayPositionBuilder)(ɵngcc0.ɵɵinject(ɵngcc1.ViewportRuler), ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(ɵngcc2.Platform), ɵngcc0.ɵɵinject(OverlayContainer)); };\n/** @nocollapse */\nOverlayPositionBuilder.ctorParameters = () => [\n    { type: ViewportRuler },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: Platform },\n    { type: OverlayContainer }\n];\n/** @nocollapse */ OverlayPositionBuilder.ɵprov = ɵɵdefineInjectable({ factory: function OverlayPositionBuilder_Factory() { return new OverlayPositionBuilder(ɵɵinject(ViewportRuler), ɵɵinject(DOCUMENT), ɵɵinject(Platform), ɵɵinject(OverlayContainer)); }, token: OverlayPositionBuilder, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(OverlayPositionBuilder, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc1.ViewportRuler }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc2.Platform }, { type: OverlayContainer }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayPositionBuilder.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayPositionBuilder.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayPositionBuilder.prototype._platform;\n    /**\n     * @type {?}\n     * @private\n     */\n    OverlayPositionBuilder.prototype._overlayContainer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/overlay.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Next overlay unique ID.\n * @type {?}\n */\nlet nextUniqueId = 0;\n// Note that Overlay is *not* scoped to the app root because of the ComponentFactoryResolver\n// which needs to be different depending on where OverlayModule is imported.\n/**\n * Service to create Overlays. Overlays are dynamically added pieces of floating UI, meant to be\n * used as a low-level building block for other components. Dialogs, tooltips, menus,\n * selects, etc. can all be built using overlays. The service should primarily be used by authors\n * of re-usable components rather than developers building end-user applications.\n *\n * An overlay *is* a PortalOutlet, so any kind of Portal can be loaded into one.\n */\nclass Overlay {\n    /**\n     * @param {?} scrollStrategies\n     * @param {?} _overlayContainer\n     * @param {?} _componentFactoryResolver\n     * @param {?} _positionBuilder\n     * @param {?} _keyboardDispatcher\n     * @param {?} _injector\n     * @param {?} _ngZone\n     * @param {?} _document\n     * @param {?} _directionality\n     * @param {?=} _location\n     */\n    constructor(scrollStrategies, _overlayContainer, _componentFactoryResolver, _positionBuilder, _keyboardDispatcher, _injector, _ngZone, _document, _directionality, _location) {\n        this.scrollStrategies = scrollStrategies;\n        this._overlayContainer = _overlayContainer;\n        this._componentFactoryResolver = _componentFactoryResolver;\n        this._positionBuilder = _positionBuilder;\n        this._keyboardDispatcher = _keyboardDispatcher;\n        this._injector = _injector;\n        this._ngZone = _ngZone;\n        this._document = _document;\n        this._directionality = _directionality;\n        this._location = _location;\n    }\n    /**\n     * Creates an overlay.\n     * @param {?=} config Configuration applied to the overlay.\n     * @return {?} Reference to the created overlay.\n     */\n    create(config) {\n        /** @type {?} */\n        const host = this._createHostElement();\n        /** @type {?} */\n        const pane = this._createPaneElement(host);\n        /** @type {?} */\n        const portalOutlet = this._createPortalOutlet(pane);\n        /** @type {?} */\n        const overlayConfig = new OverlayConfig(config);\n        overlayConfig.direction = overlayConfig.direction || this._directionality.value;\n        return new OverlayRef(portalOutlet, host, pane, overlayConfig, this._ngZone, this._keyboardDispatcher, this._document, this._location);\n    }\n    /**\n     * Gets a position builder that can be used, via fluent API,\n     * to construct and configure a position strategy.\n     * @return {?} An overlay position builder.\n     */\n    position() {\n        return this._positionBuilder;\n    }\n    /**\n     * Creates the DOM element for an overlay and appends it to the overlay container.\n     * @private\n     * @param {?} host\n     * @return {?} Newly-created pane element\n     */\n    _createPaneElement(host) {\n        /** @type {?} */\n        const pane = this._document.createElement('div');\n        pane.id = `cdk-overlay-${nextUniqueId++}`;\n        pane.classList.add('cdk-overlay-pane');\n        host.appendChild(pane);\n        return pane;\n    }\n    /**\n     * Creates the host element that wraps around an overlay\n     * and can be used for advanced positioning.\n     * @private\n     * @return {?} Newly-create host element.\n     */\n    _createHostElement() {\n        /** @type {?} */\n        const host = this._document.createElement('div');\n        this._overlayContainer.getContainerElement().appendChild(host);\n        return host;\n    }\n    /**\n     * Create a DomPortalOutlet into which the overlay content can be loaded.\n     * @private\n     * @param {?} pane The DOM element to turn into a portal outlet.\n     * @return {?} A portal outlet for the given DOM element.\n     */\n    _createPortalOutlet(pane) {\n        // We have to resolve the ApplicationRef later in order to allow people\n        // to use overlay-based providers during app initialization.\n        if (!this._appRef) {\n            this._appRef = this._injector.get(ApplicationRef);\n        }\n        return new DomPortalOutlet(pane, this._componentFactoryResolver, this._appRef, this._injector, this._document);\n    }\n}\nOverlay.ɵfac = function Overlay_Factory(t) { return new (t || Overlay)(ɵngcc0.ɵɵinject(ScrollStrategyOptions), ɵngcc0.ɵɵinject(OverlayContainer), ɵngcc0.ɵɵinject(ɵngcc0.ComponentFactoryResolver), ɵngcc0.ɵɵinject(OverlayPositionBuilder), ɵngcc0.ɵɵinject(OverlayKeyboardDispatcher), ɵngcc0.ɵɵinject(ɵngcc0.Injector), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(ɵngcc3.Directionality), ɵngcc0.ɵɵinject(ɵngcc4.Location, 8)); };\nOverlay.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: Overlay, factory: Overlay.ɵfac });\n/** @nocollapse */\nOverlay.ctorParameters = () => [\n    { type: ScrollStrategyOptions },\n    { type: OverlayContainer },\n    { type: ComponentFactoryResolver },\n    { type: OverlayPositionBuilder },\n    { type: OverlayKeyboardDispatcher },\n    { type: Injector },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: Directionality },\n    { type: Location, decorators: [{ type: Optional }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Overlay, [{\n        type: Injectable\n    }], function () { return [{ type: ScrollStrategyOptions }, { type: OverlayContainer }, { type: ɵngcc0.ComponentFactoryResolver }, { type: OverlayPositionBuilder }, { type: OverlayKeyboardDispatcher }, { type: ɵngcc0.Injector }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc3.Directionality }, { type: ɵngcc4.Location, decorators: [{\n                type: Optional\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._appRef;\n    /**\n     * Scrolling strategies that can be used when creating an overlay.\n     * @type {?}\n     */\n    Overlay.prototype.scrollStrategies;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._overlayContainer;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._componentFactoryResolver;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._positionBuilder;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._keyboardDispatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._injector;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._directionality;\n    /**\n     * @type {?}\n     * @private\n     */\n    Overlay.prototype._location;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/overlay-directives.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Default set of positions for the overlay. Follows the behavior of a dropdown.\n * @type {?}\n */\nconst defaultPositionList = [\n    {\n        originX: 'start',\n        originY: 'bottom',\n        overlayX: 'start',\n        overlayY: 'top'\n    },\n    {\n        originX: 'start',\n        originY: 'top',\n        overlayX: 'start',\n        overlayY: 'bottom'\n    },\n    {\n        originX: 'end',\n        originY: 'top',\n        overlayX: 'end',\n        overlayY: 'bottom'\n    },\n    {\n        originX: 'end',\n        originY: 'bottom',\n        overlayX: 'end',\n        overlayY: 'top'\n    }\n];\n/**\n * Injection token that determines the scroll handling while the connected overlay is open.\n * @type {?}\n */\nconst CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY = new InjectionToken('cdk-connected-overlay-scroll-strategy');\n/**\n * \\@docs-private \\@deprecated \\@breaking-change 8.0.0\n * @param {?} overlay\n * @return {?}\n */\nfunction CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_FACTORY(overlay) {\n    return (/**\n     * @param {?=} config\n     * @return {?}\n     */\n    (config) => overlay.scrollStrategies.reposition(config));\n}\n/**\n * Directive applied to an element to make it usable as an origin for an Overlay using a\n * ConnectedPositionStrategy.\n */\nclass CdkOverlayOrigin {\n    /**\n     * @param {?} elementRef\n     */\n    constructor(elementRef) {\n        this.elementRef = elementRef;\n    }\n}\nCdkOverlayOrigin.ɵfac = function CdkOverlayOrigin_Factory(t) { return new (t || CdkOverlayOrigin)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef)); };\nCdkOverlayOrigin.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkOverlayOrigin, selectors: [[\"\", \"cdk-overlay-origin\", \"\"], [\"\", \"overlay-origin\", \"\"], [\"\", \"cdkOverlayOrigin\", \"\"]], exportAs: [\"cdkOverlayOrigin\"] });\n/** @nocollapse */\nCdkOverlayOrigin.ctorParameters = () => [\n    { type: ElementRef }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkOverlayOrigin, [{\n        type: Directive,\n        args: [{\n                selector: '[cdk-overlay-origin], [overlay-origin], [cdkOverlayOrigin]',\n                exportAs: 'cdkOverlayOrigin'\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }]; }, null); })();\nif (false) {\n    /**\n     * Reference to the element on which the directive is applied.\n     * @type {?}\n     */\n    CdkOverlayOrigin.prototype.elementRef;\n}\n/**\n * Directive to facilitate declarative creation of an\n * Overlay using a FlexibleConnectedPositionStrategy.\n */\nclass CdkConnectedOverlay {\n    // TODO(jelbourn): inputs for size, scroll behavior, animation, etc.\n    /**\n     * @param {?} _overlay\n     * @param {?} templateRef\n     * @param {?} viewContainerRef\n     * @param {?} scrollStrategyFactory\n     * @param {?} _dir\n     */\n    constructor(_overlay, templateRef, viewContainerRef, scrollStrategyFactory, _dir) {\n        this._overlay = _overlay;\n        this._dir = _dir;\n        this._hasBackdrop = false;\n        this._lockPosition = false;\n        this._growAfterOpen = false;\n        this._flexibleDimensions = false;\n        this._push = false;\n        this._backdropSubscription = Subscription.EMPTY;\n        /**\n         * Margin between the overlay and the viewport edges.\n         */\n        this.viewportMargin = 0;\n        /**\n         * Whether the overlay is open.\n         */\n        this.open = false;\n        /**\n         * Event emitted when the backdrop is clicked.\n         */\n        this.backdropClick = new EventEmitter();\n        /**\n         * Event emitted when the position has changed.\n         */\n        this.positionChange = new EventEmitter();\n        /**\n         * Event emitted when the overlay has been attached.\n         */\n        this.attach = new EventEmitter();\n        /**\n         * Event emitted when the overlay has been detached.\n         */\n        this.detach = new EventEmitter();\n        /**\n         * Emits when there are keyboard events that are targeted at the overlay.\n         */\n        this.overlayKeydown = new EventEmitter();\n        this._templatePortal = new TemplatePortal(templateRef, viewContainerRef);\n        this._scrollStrategyFactory = scrollStrategyFactory;\n        this.scrollStrategy = this._scrollStrategyFactory();\n    }\n    /**\n     * The offset in pixels for the overlay connection point on the x-axis\n     * @return {?}\n     */\n    get offsetX() { return this._offsetX; }\n    /**\n     * @param {?} offsetX\n     * @return {?}\n     */\n    set offsetX(offsetX) {\n        this._offsetX = offsetX;\n        if (this._position) {\n            this._updatePositionStrategy(this._position);\n        }\n    }\n    /**\n     * The offset in pixels for the overlay connection point on the y-axis\n     * @return {?}\n     */\n    get offsetY() { return this._offsetY; }\n    /**\n     * @param {?} offsetY\n     * @return {?}\n     */\n    set offsetY(offsetY) {\n        this._offsetY = offsetY;\n        if (this._position) {\n            this._updatePositionStrategy(this._position);\n        }\n    }\n    /**\n     * Whether or not the overlay should attach a backdrop.\n     * @return {?}\n     */\n    get hasBackdrop() { return this._hasBackdrop; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set hasBackdrop(value) { this._hasBackdrop = coerceBooleanProperty(value); }\n    /**\n     * Whether or not the overlay should be locked when scrolling.\n     * @return {?}\n     */\n    get lockPosition() { return this._lockPosition; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set lockPosition(value) { this._lockPosition = coerceBooleanProperty(value); }\n    /**\n     * Whether the overlay's width and height can be constrained to fit within the viewport.\n     * @return {?}\n     */\n    get flexibleDimensions() { return this._flexibleDimensions; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set flexibleDimensions(value) {\n        this._flexibleDimensions = coerceBooleanProperty(value);\n    }\n    /**\n     * Whether the overlay can grow after the initial open when flexible positioning is turned on.\n     * @return {?}\n     */\n    get growAfterOpen() { return this._growAfterOpen; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set growAfterOpen(value) { this._growAfterOpen = coerceBooleanProperty(value); }\n    /**\n     * Whether the overlay can be pushed on-screen if none of the provided positions fit.\n     * @return {?}\n     */\n    get push() { return this._push; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set push(value) { this._push = coerceBooleanProperty(value); }\n    /**\n     * The associated overlay reference.\n     * @return {?}\n     */\n    get overlayRef() {\n        return this._overlayRef;\n    }\n    /**\n     * The element's layout direction.\n     * @return {?}\n     */\n    get dir() {\n        return this._dir ? this._dir.value : 'ltr';\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._overlayRef) {\n            this._overlayRef.dispose();\n        }\n        this._backdropSubscription.unsubscribe();\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        if (this._position) {\n            this._updatePositionStrategy(this._position);\n            this._overlayRef.updateSize({\n                width: this.width,\n                minWidth: this.minWidth,\n                height: this.height,\n                minHeight: this.minHeight,\n            });\n            if (changes['origin'] && this.open) {\n                this._position.apply();\n            }\n        }\n        if (changes['open']) {\n            this.open ? this._attachOverlay() : this._detachOverlay();\n        }\n    }\n    /**\n     * Creates an overlay\n     * @private\n     * @return {?}\n     */\n    _createOverlay() {\n        if (!this.positions || !this.positions.length) {\n            this.positions = defaultPositionList;\n        }\n        this._overlayRef = this._overlay.create(this._buildConfig());\n        this._overlayRef.keydownEvents().subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            this.overlayKeydown.next(event);\n            if (event.keyCode === ESCAPE && !hasModifierKey(event)) {\n                event.preventDefault();\n                this._detachOverlay();\n            }\n        }));\n    }\n    /**\n     * Builds the overlay config based on the directive's inputs\n     * @private\n     * @return {?}\n     */\n    _buildConfig() {\n        /** @type {?} */\n        const positionStrategy = this._position =\n            this.positionStrategy || this._createPositionStrategy();\n        /** @type {?} */\n        const overlayConfig = new OverlayConfig({\n            direction: this._dir,\n            positionStrategy,\n            scrollStrategy: this.scrollStrategy,\n            hasBackdrop: this.hasBackdrop\n        });\n        if (this.width || this.width === 0) {\n            overlayConfig.width = this.width;\n        }\n        if (this.height || this.height === 0) {\n            overlayConfig.height = this.height;\n        }\n        if (this.minWidth || this.minWidth === 0) {\n            overlayConfig.minWidth = this.minWidth;\n        }\n        if (this.minHeight || this.minHeight === 0) {\n            overlayConfig.minHeight = this.minHeight;\n        }\n        if (this.backdropClass) {\n            overlayConfig.backdropClass = this.backdropClass;\n        }\n        if (this.panelClass) {\n            overlayConfig.panelClass = this.panelClass;\n        }\n        return overlayConfig;\n    }\n    /**\n     * Updates the state of a position strategy, based on the values of the directive inputs.\n     * @private\n     * @param {?} positionStrategy\n     * @return {?}\n     */\n    _updatePositionStrategy(positionStrategy) {\n        /** @type {?} */\n        const positions = this.positions.map((/**\n         * @param {?} currentPosition\n         * @return {?}\n         */\n        currentPosition => ({\n            originX: currentPosition.originX,\n            originY: currentPosition.originY,\n            overlayX: currentPosition.overlayX,\n            overlayY: currentPosition.overlayY,\n            offsetX: currentPosition.offsetX || this.offsetX,\n            offsetY: currentPosition.offsetY || this.offsetY,\n            panelClass: currentPosition.panelClass || undefined,\n        })));\n        return positionStrategy\n            .setOrigin(this.origin.elementRef)\n            .withPositions(positions)\n            .withFlexibleDimensions(this.flexibleDimensions)\n            .withPush(this.push)\n            .withGrowAfterOpen(this.growAfterOpen)\n            .withViewportMargin(this.viewportMargin)\n            .withLockedPosition(this.lockPosition)\n            .withTransformOriginOn(this.transformOriginSelector);\n    }\n    /**\n     * Returns the position strategy of the overlay to be set on the overlay config\n     * @private\n     * @return {?}\n     */\n    _createPositionStrategy() {\n        /** @type {?} */\n        const strategy = this._overlay.position().flexibleConnectedTo(this.origin.elementRef);\n        this._updatePositionStrategy(strategy);\n        strategy.positionChanges.subscribe((/**\n         * @param {?} p\n         * @return {?}\n         */\n        p => this.positionChange.emit(p)));\n        return strategy;\n    }\n    /**\n     * Attaches the overlay and subscribes to backdrop clicks if backdrop exists\n     * @private\n     * @return {?}\n     */\n    _attachOverlay() {\n        if (!this._overlayRef) {\n            this._createOverlay();\n        }\n        else {\n            // Update the overlay size, in case the directive's inputs have changed\n            this._overlayRef.getConfig().hasBackdrop = this.hasBackdrop;\n        }\n        if (!this._overlayRef.hasAttached()) {\n            this._overlayRef.attach(this._templatePortal);\n            this.attach.emit();\n        }\n        if (this.hasBackdrop) {\n            this._backdropSubscription = this._overlayRef.backdropClick().subscribe((/**\n             * @param {?} event\n             * @return {?}\n             */\n            event => {\n                this.backdropClick.emit(event);\n            }));\n        }\n        else {\n            this._backdropSubscription.unsubscribe();\n        }\n    }\n    /**\n     * Detaches the overlay and unsubscribes to backdrop clicks if backdrop exists\n     * @private\n     * @return {?}\n     */\n    _detachOverlay() {\n        if (this._overlayRef) {\n            this._overlayRef.detach();\n            this.detach.emit();\n        }\n        this._backdropSubscription.unsubscribe();\n    }\n}\nCdkConnectedOverlay.ɵfac = function CdkConnectedOverlay_Factory(t) { return new (t || CdkConnectedOverlay)(ɵngcc0.ɵɵdirectiveInject(Overlay), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY), ɵngcc0.ɵɵdirectiveInject(ɵngcc3.Directionality, 8)); };\nCdkConnectedOverlay.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkConnectedOverlay, selectors: [[\"\", \"cdk-connected-overlay\", \"\"], [\"\", \"connected-overlay\", \"\"], [\"\", \"cdkConnectedOverlay\", \"\"]], inputs: { viewportMargin: [\"cdkConnectedOverlayViewportMargin\", \"viewportMargin\"], open: [\"cdkConnectedOverlayOpen\", \"open\"], scrollStrategy: [\"cdkConnectedOverlayScrollStrategy\", \"scrollStrategy\"], offsetX: [\"cdkConnectedOverlayOffsetX\", \"offsetX\"], offsetY: [\"cdkConnectedOverlayOffsetY\", \"offsetY\"], hasBackdrop: [\"cdkConnectedOverlayHasBackdrop\", \"hasBackdrop\"], lockPosition: [\"cdkConnectedOverlayLockPosition\", \"lockPosition\"], flexibleDimensions: [\"cdkConnectedOverlayFlexibleDimensions\", \"flexibleDimensions\"], growAfterOpen: [\"cdkConnectedOverlayGrowAfterOpen\", \"growAfterOpen\"], push: [\"cdkConnectedOverlayPush\", \"push\"], positions: [\"cdkConnectedOverlayPositions\", \"positions\"], origin: [\"cdkConnectedOverlayOrigin\", \"origin\"], positionStrategy: [\"cdkConnectedOverlayPositionStrategy\", \"positionStrategy\"], width: [\"cdkConnectedOverlayWidth\", \"width\"], height: [\"cdkConnectedOverlayHeight\", \"height\"], minWidth: [\"cdkConnectedOverlayMinWidth\", \"minWidth\"], minHeight: [\"cdkConnectedOverlayMinHeight\", \"minHeight\"], backdropClass: [\"cdkConnectedOverlayBackdropClass\", \"backdropClass\"], panelClass: [\"cdkConnectedOverlayPanelClass\", \"panelClass\"], transformOriginSelector: [\"cdkConnectedOverlayTransformOriginOn\", \"transformOriginSelector\"] }, outputs: { backdropClick: \"backdropClick\", positionChange: \"positionChange\", attach: \"attach\", detach: \"detach\", overlayKeydown: \"overlayKeydown\" }, exportAs: [\"cdkConnectedOverlay\"], features: [ɵngcc0.ɵɵNgOnChangesFeature] });\n/** @nocollapse */\nCdkConnectedOverlay.ctorParameters = () => [\n    { type: Overlay },\n    { type: TemplateRef },\n    { type: ViewContainerRef },\n    { type: undefined, decorators: [{ type: Inject, args: [CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY,] }] },\n    { type: Directionality, decorators: [{ type: Optional }] }\n];\nCdkConnectedOverlay.propDecorators = {\n    origin: [{ type: Input, args: ['cdkConnectedOverlayOrigin',] }],\n    positions: [{ type: Input, args: ['cdkConnectedOverlayPositions',] }],\n    positionStrategy: [{ type: Input, args: ['cdkConnectedOverlayPositionStrategy',] }],\n    offsetX: [{ type: Input, args: ['cdkConnectedOverlayOffsetX',] }],\n    offsetY: [{ type: Input, args: ['cdkConnectedOverlayOffsetY',] }],\n    width: [{ type: Input, args: ['cdkConnectedOverlayWidth',] }],\n    height: [{ type: Input, args: ['cdkConnectedOverlayHeight',] }],\n    minWidth: [{ type: Input, args: ['cdkConnectedOverlayMinWidth',] }],\n    minHeight: [{ type: Input, args: ['cdkConnectedOverlayMinHeight',] }],\n    backdropClass: [{ type: Input, args: ['cdkConnectedOverlayBackdropClass',] }],\n    panelClass: [{ type: Input, args: ['cdkConnectedOverlayPanelClass',] }],\n    viewportMargin: [{ type: Input, args: ['cdkConnectedOverlayViewportMargin',] }],\n    scrollStrategy: [{ type: Input, args: ['cdkConnectedOverlayScrollStrategy',] }],\n    open: [{ type: Input, args: ['cdkConnectedOverlayOpen',] }],\n    transformOriginSelector: [{ type: Input, args: ['cdkConnectedOverlayTransformOriginOn',] }],\n    hasBackdrop: [{ type: Input, args: ['cdkConnectedOverlayHasBackdrop',] }],\n    lockPosition: [{ type: Input, args: ['cdkConnectedOverlayLockPosition',] }],\n    flexibleDimensions: [{ type: Input, args: ['cdkConnectedOverlayFlexibleDimensions',] }],\n    growAfterOpen: [{ type: Input, args: ['cdkConnectedOverlayGrowAfterOpen',] }],\n    push: [{ type: Input, args: ['cdkConnectedOverlayPush',] }],\n    backdropClick: [{ type: Output }],\n    positionChange: [{ type: Output }],\n    attach: [{ type: Output }],\n    detach: [{ type: Output }],\n    overlayKeydown: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkConnectedOverlay, [{\n        type: Directive,\n        args: [{\n                selector: '[cdk-connected-overlay], [connected-overlay], [cdkConnectedOverlay]',\n                exportAs: 'cdkConnectedOverlay'\n            }]\n    }], function () { return [{ type: Overlay }, { type: ɵngcc0.TemplateRef }, { type: ɵngcc0.ViewContainerRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY]\n            }] }, { type: ɵngcc3.Directionality, decorators: [{\n                type: Optional\n            }] }]; }, { viewportMargin: [{\n            type: Input,\n            args: ['cdkConnectedOverlayViewportMargin']\n        }], open: [{\n            type: Input,\n            args: ['cdkConnectedOverlayOpen']\n        }], backdropClick: [{\n            type: Output\n        }], positionChange: [{\n            type: Output\n        }], attach: [{\n            type: Output\n        }], detach: [{\n            type: Output\n        }], overlayKeydown: [{\n            type: Output\n        }], scrollStrategy: [{\n            type: Input,\n            args: ['cdkConnectedOverlayScrollStrategy']\n        }], offsetX: [{\n            type: Input,\n            args: ['cdkConnectedOverlayOffsetX']\n        }], offsetY: [{\n            type: Input,\n            args: ['cdkConnectedOverlayOffsetY']\n        }], hasBackdrop: [{\n            type: Input,\n            args: ['cdkConnectedOverlayHasBackdrop']\n        }], lockPosition: [{\n            type: Input,\n            args: ['cdkConnectedOverlayLockPosition']\n        }], flexibleDimensions: [{\n            type: Input,\n            args: ['cdkConnectedOverlayFlexibleDimensions']\n        }], growAfterOpen: [{\n            type: Input,\n            args: ['cdkConnectedOverlayGrowAfterOpen']\n        }], push: [{\n            type: Input,\n            args: ['cdkConnectedOverlayPush']\n        }], positions: [{\n            type: Input,\n            args: ['cdkConnectedOverlayPositions']\n        }], origin: [{\n            type: Input,\n            args: ['cdkConnectedOverlayOrigin']\n        }], positionStrategy: [{\n            type: Input,\n            args: ['cdkConnectedOverlayPositionStrategy']\n        }], width: [{\n            type: Input,\n            args: ['cdkConnectedOverlayWidth']\n        }], height: [{\n            type: Input,\n            args: ['cdkConnectedOverlayHeight']\n        }], minWidth: [{\n            type: Input,\n            args: ['cdkConnectedOverlayMinWidth']\n        }], minHeight: [{\n            type: Input,\n            args: ['cdkConnectedOverlayMinHeight']\n        }], backdropClass: [{\n            type: Input,\n            args: ['cdkConnectedOverlayBackdropClass']\n        }], panelClass: [{\n            type: Input,\n            args: ['cdkConnectedOverlayPanelClass']\n        }], transformOriginSelector: [{\n            type: Input,\n            args: ['cdkConnectedOverlayTransformOriginOn']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkConnectedOverlay.ngAcceptInputType_hasBackdrop;\n    /** @type {?} */\n    CdkConnectedOverlay.ngAcceptInputType_lockPosition;\n    /** @type {?} */\n    CdkConnectedOverlay.ngAcceptInputType_flexibleDimensions;\n    /** @type {?} */\n    CdkConnectedOverlay.ngAcceptInputType_growAfterOpen;\n    /** @type {?} */\n    CdkConnectedOverlay.ngAcceptInputType_push;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._overlayRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._templatePortal;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._hasBackdrop;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._lockPosition;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._growAfterOpen;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._flexibleDimensions;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._push;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._backdropSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._offsetX;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._offsetY;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._position;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._scrollStrategyFactory;\n    /**\n     * Origin for the connected overlay.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.origin;\n    /**\n     * Registered connected position pairs.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.positions;\n    /**\n     * This input overrides the positions input if specified. It lets users pass\n     * in arbitrary positioning strategies.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.positionStrategy;\n    /**\n     * The width of the overlay panel.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.width;\n    /**\n     * The height of the overlay panel.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.height;\n    /**\n     * The min width of the overlay panel.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.minWidth;\n    /**\n     * The min height of the overlay panel.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.minHeight;\n    /**\n     * The custom class to be set on the backdrop element.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.backdropClass;\n    /**\n     * The custom class to add to the overlay pane element.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.panelClass;\n    /**\n     * Margin between the overlay and the viewport edges.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.viewportMargin;\n    /**\n     * Strategy to be used when handling scroll events while the overlay is open.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.scrollStrategy;\n    /**\n     * Whether the overlay is open.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.open;\n    /**\n     * CSS selector which to set the transform origin.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.transformOriginSelector;\n    /**\n     * Event emitted when the backdrop is clicked.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.backdropClick;\n    /**\n     * Event emitted when the position has changed.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.positionChange;\n    /**\n     * Event emitted when the overlay has been attached.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.attach;\n    /**\n     * Event emitted when the overlay has been detached.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.detach;\n    /**\n     * Emits when there are keyboard events that are targeted at the overlay.\n     * @type {?}\n     */\n    CdkConnectedOverlay.prototype.overlayKeydown;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._overlay;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkConnectedOverlay.prototype._dir;\n}\n/**\n * \\@docs-private\n * @param {?} overlay\n * @return {?}\n */\nfunction CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay) {\n    return (/**\n     * @return {?}\n     */\n    () => overlay.scrollStrategies.reposition());\n}\n/**\n * \\@docs-private\n * @type {?}\n */\nconst CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER = {\n    provide: CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY,\n    deps: [Overlay],\n    useFactory: CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY,\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/overlay-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass OverlayModule {\n}\nOverlayModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: OverlayModule });\nOverlayModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function OverlayModule_Factory(t) { return new (t || OverlayModule)(); }, providers: [\n        Overlay,\n        CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER,\n    ], imports: [[BidiModule, PortalModule, ScrollingModule], ScrollingModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(OverlayModule, { declarations: function () { return [CdkConnectedOverlay, CdkOverlayOrigin]; }, imports: function () { return [BidiModule, PortalModule, ScrollingModule]; }, exports: function () { return [CdkConnectedOverlay, CdkOverlayOrigin, ScrollingModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(OverlayModule, [{\n        type: NgModule,\n        args: [{\n                imports: [BidiModule, PortalModule, ScrollingModule],\n                exports: [CdkConnectedOverlay, CdkOverlayOrigin, ScrollingModule],\n                declarations: [CdkConnectedOverlay, CdkOverlayOrigin],\n                providers: [\n                    Overlay,\n                    CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER,\n                ]\n            }]\n    }], null, null); })();\n/**\n * @deprecated Use `OverlayModule` instead.\n * \\@breaking-change 8.0.0\n * \\@docs-private\n * @type {?}\n */\nconst OVERLAY_PROVIDERS = [\n    Overlay,\n    OverlayPositionBuilder,\n    OVERLAY_KEYBOARD_DISPATCHER_PROVIDER,\n    OVERLAY_CONTAINER_PROVIDER,\n    CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER,\n];\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/fullscreen-overlay-container.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Alternative to OverlayContainer that supports correct displaying of overlay elements in\n * Fullscreen mode\n * https://developer.mozilla.org/en-US/docs/Web/API/Element/requestFullScreen\n *\n * Should be provided in the root component.\n */\nclass FullscreenOverlayContainer extends OverlayContainer {\n    /**\n     * @param {?} _document\n     * @param {?=} platform\n     */\n    constructor(_document, \n    /**\n     * @deprecated `platform` parameter to become required.\n     * @breaking-change 10.0.0\n     */\n    platform) {\n        super(_document, platform);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        super.ngOnDestroy();\n        if (this._fullScreenEventName && this._fullScreenListener) {\n            this._document.removeEventListener(this._fullScreenEventName, this._fullScreenListener);\n        }\n    }\n    /**\n     * @protected\n     * @return {?}\n     */\n    _createContainer() {\n        super._createContainer();\n        this._adjustParentForFullscreenChange();\n        this._addFullscreenChangeListener((/**\n         * @return {?}\n         */\n        () => this._adjustParentForFullscreenChange()));\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _adjustParentForFullscreenChange() {\n        if (!this._containerElement) {\n            return;\n        }\n        /** @type {?} */\n        const fullscreenElement = this.getFullscreenElement();\n        /** @type {?} */\n        const parent = fullscreenElement || this._document.body;\n        parent.appendChild(this._containerElement);\n    }\n    /**\n     * @private\n     * @param {?} fn\n     * @return {?}\n     */\n    _addFullscreenChangeListener(fn) {\n        /** @type {?} */\n        const eventName = this._getEventName();\n        if (eventName) {\n            if (this._fullScreenListener) {\n                this._document.removeEventListener(eventName, this._fullScreenListener);\n            }\n            this._document.addEventListener(eventName, fn);\n            this._fullScreenListener = fn;\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _getEventName() {\n        if (!this._fullScreenEventName) {\n            /** @type {?} */\n            const _document = (/** @type {?} */ (this._document));\n            if (_document.fullscreenEnabled) {\n                this._fullScreenEventName = 'fullscreenchange';\n            }\n            else if (_document.webkitFullscreenEnabled) {\n                this._fullScreenEventName = 'webkitfullscreenchange';\n            }\n            else if (_document.mozFullScreenEnabled) {\n                this._fullScreenEventName = 'mozfullscreenchange';\n            }\n            else if (_document.msFullscreenEnabled) {\n                this._fullScreenEventName = 'MSFullscreenChange';\n            }\n        }\n        return this._fullScreenEventName;\n    }\n    /**\n     * When the page is put into fullscreen mode, a specific element is specified.\n     * Only that element and its children are visible when in fullscreen mode.\n     * @return {?}\n     */\n    getFullscreenElement() {\n        /** @type {?} */\n        const _document = (/** @type {?} */ (this._document));\n        return _document.fullscreenElement ||\n            _document.webkitFullscreenElement ||\n            _document.mozFullScreenElement ||\n            _document.msFullscreenElement ||\n            null;\n    }\n}\nFullscreenOverlayContainer.ɵfac = function FullscreenOverlayContainer_Factory(t) { return new (t || FullscreenOverlayContainer)(ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(ɵngcc2.Platform)); };\n/** @nocollapse */\nFullscreenOverlayContainer.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: Platform }\n];\n/** @nocollapse */ FullscreenOverlayContainer.ɵprov = ɵɵdefineInjectable({ factory: function FullscreenOverlayContainer_Factory() { return new FullscreenOverlayContainer(ɵɵinject(DOCUMENT), ɵɵinject(Platform)); }, token: FullscreenOverlayContainer, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FullscreenOverlayContainer, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc2.Platform }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    FullscreenOverlayContainer.prototype._fullScreenEventName;\n    /**\n     * @type {?}\n     * @private\n     */\n    FullscreenOverlayContainer.prototype._fullScreenListener;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/overlay/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BlockScrollStrategy, CdkConnectedOverlay, CdkOverlayOrigin, CloseScrollStrategy, ConnectedOverlayPositionChange, ConnectedPositionStrategy, ConnectionPositionPair, FlexibleConnectedPositionStrategy, FullscreenOverlayContainer, GlobalPositionStrategy, NoopScrollStrategy, OVERLAY_PROVIDERS, Overlay, OverlayConfig, OverlayContainer, OverlayKeyboardDispatcher, OverlayModule, OverlayPositionBuilder, OverlayRef, RepositionScrollStrategy, ScrollStrategyOptions, ScrollingVisibility, validateHorizontalPosition, validateVerticalPosition, OVERLAY_CONTAINER_PROVIDER_FACTORY as ɵangular_material_src_cdk_overlay_overlay_a, OVERLAY_CONTAINER_PROVIDER as ɵangular_material_src_cdk_overlay_overlay_b, CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY as ɵangular_material_src_cdk_overlay_overlay_c, CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER_FACTORY as ɵangular_material_src_cdk_overlay_overlay_d, CDK_CONNECTED_OVERLAY_SCROLL_STRATEGY_PROVIDER as ɵangular_material_src_cdk_overlay_overlay_e, OVERLAY_KEYBOARD_DISPATCHER_PROVIDER_FACTORY as ɵangular_material_src_cdk_overlay_overlay_f, OVERLAY_KEYBOARD_DISPATCHER_PROVIDER as ɵangular_material_src_cdk_overlay_overlay_g };\n\n//# sourceMappingURL=overlay.js.map","import { Subscriber } from '../Subscriber';\nimport { async } from '../scheduler/async';\nexport function debounceTime(dueTime, scheduler = async) {\n    return (source) => source.lift(new DebounceTimeOperator(dueTime, scheduler));\n}\nclass DebounceTimeOperator {\n    constructor(dueTime, scheduler) {\n        this.dueTime = dueTime;\n        this.scheduler = scheduler;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new DebounceTimeSubscriber(subscriber, this.dueTime, this.scheduler));\n    }\n}\nclass DebounceTimeSubscriber extends Subscriber {\n    constructor(destination, dueTime, scheduler) {\n        super(destination);\n        this.dueTime = dueTime;\n        this.scheduler = scheduler;\n        this.debouncedSubscription = null;\n        this.lastValue = null;\n        this.hasValue = false;\n    }\n    _next(value) {\n        this.clearDebounce();\n        this.lastValue = value;\n        this.hasValue = true;\n        this.add(this.debouncedSubscription = this.scheduler.schedule(dispatchNext, this.dueTime, this));\n    }\n    _complete() {\n        this.debouncedNext();\n        this.destination.complete();\n    }\n    debouncedNext() {\n        this.clearDebounce();\n        if (this.hasValue) {\n            const { lastValue } = this;\n            this.lastValue = null;\n            this.hasValue = false;\n            this.destination.next(lastValue);\n        }\n    }\n    clearDebounce() {\n        const debouncedSubscription = this.debouncedSubscription;\n        if (debouncedSubscription !== null) {\n            this.remove(debouncedSubscription);\n            debouncedSubscription.unsubscribe();\n            this.debouncedSubscription = null;\n        }\n    }\n}\nfunction dispatchNext(subscriber) {\n    subscriber.debouncedNext();\n}\n//# sourceMappingURL=debounceTime.js.map","import { coerceElement, coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';\nimport { Injectable, ɵɵdefineInjectable, ɵɵinject, EventEmitter, Directive, ElementRef, NgZone, Output, Input, NgModule } from '@angular/core';\nimport { Observable, Subject } from 'rxjs';\nimport { debounceTime } from 'rxjs/operators';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/observers/observe-content.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Factory that creates a new MutationObserver and allows us to stub it out in unit tests.\n * \\@docs-private\n */\nimport * as ɵngcc0 from '@angular/core';\nclass MutationObserverFactory {\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    create(callback) {\n        return typeof MutationObserver === 'undefined' ? null : new MutationObserver(callback);\n    }\n}\nMutationObserverFactory.ɵfac = function MutationObserverFactory_Factory(t) { return new (t || MutationObserverFactory)(); };\n/** @nocollapse */ MutationObserverFactory.ɵprov = ɵɵdefineInjectable({ factory: function MutationObserverFactory_Factory() { return new MutationObserverFactory(); }, token: MutationObserverFactory, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MutationObserverFactory, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], null, null); })();\n/**\n * An injectable service that allows watching elements for changes to their content.\n */\nclass ContentObserver {\n    /**\n     * @param {?} _mutationObserverFactory\n     */\n    constructor(_mutationObserverFactory) {\n        this._mutationObserverFactory = _mutationObserverFactory;\n        /**\n         * Keeps track of the existing MutationObservers so they can be reused.\n         */\n        this._observedElements = new Map();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._observedElements.forEach((/**\n         * @param {?} _\n         * @param {?} element\n         * @return {?}\n         */\n        (_, element) => this._cleanupObserver(element)));\n    }\n    /**\n     * @param {?} elementOrRef\n     * @return {?}\n     */\n    observe(elementOrRef) {\n        /** @type {?} */\n        const element = coerceElement(elementOrRef);\n        return new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            /** @type {?} */\n            const stream = this._observeElement(element);\n            /** @type {?} */\n            const subscription = stream.subscribe(observer);\n            return (/**\n             * @return {?}\n             */\n            () => {\n                subscription.unsubscribe();\n                this._unobserveElement(element);\n            });\n        }));\n    }\n    /**\n     * Observes the given element by using the existing MutationObserver if available, or creating a\n     * new one if not.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _observeElement(element) {\n        if (!this._observedElements.has(element)) {\n            /** @type {?} */\n            const stream = new Subject();\n            /** @type {?} */\n            const observer = this._mutationObserverFactory.create((/**\n             * @param {?} mutations\n             * @return {?}\n             */\n            mutations => stream.next(mutations)));\n            if (observer) {\n                observer.observe(element, {\n                    characterData: true,\n                    childList: true,\n                    subtree: true\n                });\n            }\n            this._observedElements.set(element, { observer, stream, count: 1 });\n        }\n        else {\n            (/** @type {?} */ (this._observedElements.get(element))).count++;\n        }\n        return (/** @type {?} */ (this._observedElements.get(element))).stream;\n    }\n    /**\n     * Un-observes the given element and cleans up the underlying MutationObserver if nobody else is\n     * observing this element.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _unobserveElement(element) {\n        if (this._observedElements.has(element)) {\n            (/** @type {?} */ (this._observedElements.get(element))).count--;\n            if (!(/** @type {?} */ (this._observedElements.get(element))).count) {\n                this._cleanupObserver(element);\n            }\n        }\n    }\n    /**\n     * Clean up the underlying MutationObserver for the specified element.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _cleanupObserver(element) {\n        if (this._observedElements.has(element)) {\n            const { observer, stream } = (/** @type {?} */ (this._observedElements.get(element)));\n            if (observer) {\n                observer.disconnect();\n            }\n            stream.complete();\n            this._observedElements.delete(element);\n        }\n    }\n}\nContentObserver.ɵfac = function ContentObserver_Factory(t) { return new (t || ContentObserver)(ɵngcc0.ɵɵinject(MutationObserverFactory)); };\n/** @nocollapse */\nContentObserver.ctorParameters = () => [\n    { type: MutationObserverFactory }\n];\n/** @nocollapse */ ContentObserver.ɵprov = ɵɵdefineInjectable({ factory: function ContentObserver_Factory() { return new ContentObserver(ɵɵinject(MutationObserverFactory)); }, token: ContentObserver, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ContentObserver, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: MutationObserverFactory }]; }, null); })();\nif (false) {\n    /**\n     * Keeps track of the existing MutationObservers so they can be reused.\n     * @type {?}\n     * @private\n     */\n    ContentObserver.prototype._observedElements;\n    /**\n     * @type {?}\n     * @private\n     */\n    ContentObserver.prototype._mutationObserverFactory;\n}\n/**\n * Directive that triggers a callback whenever the content of\n * its associated element has changed.\n */\nclass CdkObserveContent {\n    /**\n     * @param {?} _contentObserver\n     * @param {?} _elementRef\n     * @param {?} _ngZone\n     */\n    constructor(_contentObserver, _elementRef, _ngZone) {\n        this._contentObserver = _contentObserver;\n        this._elementRef = _elementRef;\n        this._ngZone = _ngZone;\n        /**\n         * Event emitted for each change in the element's content.\n         */\n        this.event = new EventEmitter();\n        this._disabled = false;\n        this._currentSubscription = null;\n    }\n    /**\n     * Whether observing content is disabled. This option can be used\n     * to disconnect the underlying MutationObserver until it is needed.\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = coerceBooleanProperty(value);\n        this._disabled ? this._unsubscribe() : this._subscribe();\n    }\n    /**\n     * Debounce interval for emitting the changes.\n     * @return {?}\n     */\n    get debounce() { return this._debounce; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set debounce(value) {\n        this._debounce = coerceNumberProperty(value);\n        this._subscribe();\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        if (!this._currentSubscription && !this.disabled) {\n            this._subscribe();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._unsubscribe();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _subscribe() {\n        this._unsubscribe();\n        /** @type {?} */\n        const stream = this._contentObserver.observe(this._elementRef);\n        // TODO(mmalerba): We shouldn't be emitting on this @Output() outside the zone.\n        // Consider brining it back inside the zone next time we're making breaking changes.\n        // Bringing it back inside can cause things like infinite change detection loops and changed\n        // after checked errors if people's code isn't handling it properly.\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            this._currentSubscription =\n                (this.debounce ? stream.pipe(debounceTime(this.debounce)) : stream).subscribe(this.event);\n        }));\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _unsubscribe() {\n        if (this._currentSubscription) {\n            this._currentSubscription.unsubscribe();\n        }\n    }\n}\nCdkObserveContent.ɵfac = function CdkObserveContent_Factory(t) { return new (t || CdkObserveContent)(ɵngcc0.ɵɵdirectiveInject(ContentObserver), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone)); };\nCdkObserveContent.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkObserveContent, selectors: [[\"\", \"cdkObserveContent\", \"\"]], inputs: { disabled: [\"cdkObserveContentDisabled\", \"disabled\"], debounce: \"debounce\" }, outputs: { event: \"cdkObserveContent\" }, exportAs: [\"cdkObserveContent\"] });\n/** @nocollapse */\nCdkObserveContent.ctorParameters = () => [\n    { type: ContentObserver },\n    { type: ElementRef },\n    { type: NgZone }\n];\nCdkObserveContent.propDecorators = {\n    event: [{ type: Output, args: ['cdkObserveContent',] }],\n    disabled: [{ type: Input, args: ['cdkObserveContentDisabled',] }],\n    debounce: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkObserveContent, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkObserveContent]',\n                exportAs: 'cdkObserveContent'\n            }]\n    }], function () { return [{ type: ContentObserver }, { type: ɵngcc0.ElementRef }, { type: ɵngcc0.NgZone }]; }, { event: [{\n            type: Output,\n            args: ['cdkObserveContent']\n        }], disabled: [{\n            type: Input,\n            args: ['cdkObserveContentDisabled']\n        }], debounce: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkObserveContent.ngAcceptInputType_disabled;\n    /** @type {?} */\n    CdkObserveContent.ngAcceptInputType_debounce;\n    /**\n     * Event emitted for each change in the element's content.\n     * @type {?}\n     */\n    CdkObserveContent.prototype.event;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkObserveContent.prototype._disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkObserveContent.prototype._debounce;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkObserveContent.prototype._currentSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkObserveContent.prototype._contentObserver;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkObserveContent.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkObserveContent.prototype._ngZone;\n}\nclass ObserversModule {\n}\nObserversModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: ObserversModule });\nObserversModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function ObserversModule_Factory(t) { return new (t || ObserversModule)(); }, providers: [MutationObserverFactory] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(ObserversModule, { declarations: [CdkObserveContent], exports: [CdkObserveContent] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ObserversModule, [{\n        type: NgModule,\n        args: [{\n                exports: [CdkObserveContent],\n                declarations: [CdkObserveContent],\n                providers: [MutationObserverFactory]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/observers/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { CdkObserveContent, ContentObserver, MutationObserverFactory, ObserversModule };\n\n//# sourceMappingURL=observers.js.map","import { DOCUMENT } from '@angular/common';\nimport { Injectable, Inject, ɵɵdefineInjectable, ɵɵinject, QueryList, isDevMode, NgZone, Directive, ElementRef, Input, InjectionToken, Optional, EventEmitter, Output, NgModule } from '@angular/core';\nimport { Subject, Subscription, of } from 'rxjs';\nimport { hasModifierKey, A, Z, ZERO, NINE, LEFT_ARROW, RIGHT_ARROW, UP_ARROW, DOWN_ARROW, TAB } from '@angular/cdk/keycodes';\nimport { tap, debounceTime, filter, map, take } from 'rxjs/operators';\nimport { coerceBooleanProperty, coerceElement } from '@angular/cdk/coercion';\nimport { Platform, normalizePassiveListenerOptions, _getShadowRoot, PlatformModule } from '@angular/cdk/platform';\nimport { ContentObserver, ObserversModule } from '@angular/cdk/observers';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/aria-describer/aria-reference.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * IDs are delimited by an empty space, as per the spec.\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/platform';\nimport * as ɵngcc2 from '@angular/cdk/observers';\nconst ID_DELIMITER = ' ';\n/**\n * Adds the given ID to the specified ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n * @param {?} el\n * @param {?} attr\n * @param {?} id\n * @return {?}\n */\nfunction addAriaReferencedId(el, attr, id) {\n    /** @type {?} */\n    const ids = getAriaReferenceIds(el, attr);\n    if (ids.some((/**\n     * @param {?} existingId\n     * @return {?}\n     */\n    existingId => existingId.trim() == id.trim()))) {\n        return;\n    }\n    ids.push(id.trim());\n    el.setAttribute(attr, ids.join(ID_DELIMITER));\n}\n/**\n * Removes the given ID from the specified ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n * @param {?} el\n * @param {?} attr\n * @param {?} id\n * @return {?}\n */\nfunction removeAriaReferencedId(el, attr, id) {\n    /** @type {?} */\n    const ids = getAriaReferenceIds(el, attr);\n    /** @type {?} */\n    const filteredIds = ids.filter((/**\n     * @param {?} val\n     * @return {?}\n     */\n    val => val != id.trim()));\n    if (filteredIds.length) {\n        el.setAttribute(attr, filteredIds.join(ID_DELIMITER));\n    }\n    else {\n        el.removeAttribute(attr);\n    }\n}\n/**\n * Gets the list of IDs referenced by the given ARIA attribute on an element.\n * Used for attributes such as aria-labelledby, aria-owns, etc.\n * @param {?} el\n * @param {?} attr\n * @return {?}\n */\nfunction getAriaReferenceIds(el, attr) {\n    // Get string array of all individual ids (whitespace delimited) in the attribute value\n    return (el.getAttribute(attr) || '').match(/\\S+/g) || [];\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/aria-describer/aria-describer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Interface used to register message elements and keep a count of how many registrations have\n * the same message and the reference to the message element used for the `aria-describedby`.\n * @record\n */\nfunction RegisteredMessage() { }\nif (false) {\n    /**\n     * The element containing the message.\n     * @type {?}\n     */\n    RegisteredMessage.prototype.messageElement;\n    /**\n     * The number of elements that reference this message element via `aria-describedby`.\n     * @type {?}\n     */\n    RegisteredMessage.prototype.referenceCount;\n}\n/**\n * ID used for the body container where all messages are appended.\n * @type {?}\n */\nconst MESSAGES_CONTAINER_ID = 'cdk-describedby-message-container';\n/**\n * ID prefix used for each created message element.\n * @type {?}\n */\nconst CDK_DESCRIBEDBY_ID_PREFIX = 'cdk-describedby-message';\n/**\n * Attribute given to each host element that is described by a message element.\n * @type {?}\n */\nconst CDK_DESCRIBEDBY_HOST_ATTRIBUTE = 'cdk-describedby-host';\n/**\n * Global incremental identifier for each registered message element.\n * @type {?}\n */\nlet nextId = 0;\n/**\n * Global map of all registered message elements that have been placed into the document.\n * @type {?}\n */\nconst messageRegistry = new Map();\n/**\n * Container for all registered messages.\n * @type {?}\n */\nlet messagesContainer = null;\n/**\n * Utility that creates visually hidden elements with a message content. Useful for elements that\n * want to use aria-describedby to further describe themselves without adding additional visual\n * content.\n */\nclass AriaDescriber {\n    /**\n     * @param {?} _document\n     */\n    constructor(_document) {\n        this._document = _document;\n    }\n    /**\n     * Adds to the host element an aria-describedby reference to a hidden element that contains\n     * the message. If the same message has already been registered, then it will reuse the created\n     * message element.\n     * @param {?} hostElement\n     * @param {?} message\n     * @return {?}\n     */\n    describe(hostElement, message) {\n        if (!this._canBeDescribed(hostElement, message)) {\n            return;\n        }\n        if (typeof message !== 'string') {\n            // We need to ensure that the element has an ID.\n            this._setMessageId(message);\n            messageRegistry.set(message, { messageElement: message, referenceCount: 0 });\n        }\n        else if (!messageRegistry.has(message)) {\n            this._createMessageElement(message);\n        }\n        if (!this._isElementDescribedByMessage(hostElement, message)) {\n            this._addMessageReference(hostElement, message);\n        }\n    }\n    /**\n     * Removes the host element's aria-describedby reference to the message element.\n     * @param {?} hostElement\n     * @param {?} message\n     * @return {?}\n     */\n    removeDescription(hostElement, message) {\n        if (!this._isElementNode(hostElement)) {\n            return;\n        }\n        if (this._isElementDescribedByMessage(hostElement, message)) {\n            this._removeMessageReference(hostElement, message);\n        }\n        // If the message is a string, it means that it's one that we created for the\n        // consumer so we can remove it safely, otherwise we should leave it in place.\n        if (typeof message === 'string') {\n            /** @type {?} */\n            const registeredMessage = messageRegistry.get(message);\n            if (registeredMessage && registeredMessage.referenceCount === 0) {\n                this._deleteMessageElement(message);\n            }\n        }\n        if (messagesContainer && messagesContainer.childNodes.length === 0) {\n            this._deleteMessagesContainer();\n        }\n    }\n    /**\n     * Unregisters all created message elements and removes the message container.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        /** @type {?} */\n        const describedElements = this._document.querySelectorAll(`[${CDK_DESCRIBEDBY_HOST_ATTRIBUTE}]`);\n        for (let i = 0; i < describedElements.length; i++) {\n            this._removeCdkDescribedByReferenceIds(describedElements[i]);\n            describedElements[i].removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);\n        }\n        if (messagesContainer) {\n            this._deleteMessagesContainer();\n        }\n        messageRegistry.clear();\n    }\n    /**\n     * Creates a new element in the visually hidden message container element with the message\n     * as its content and adds it to the message registry.\n     * @private\n     * @param {?} message\n     * @return {?}\n     */\n    _createMessageElement(message) {\n        /** @type {?} */\n        const messageElement = this._document.createElement('div');\n        this._setMessageId(messageElement);\n        messageElement.textContent = message;\n        this._createMessagesContainer();\n        (/** @type {?} */ (messagesContainer)).appendChild(messageElement);\n        messageRegistry.set(message, { messageElement, referenceCount: 0 });\n    }\n    /**\n     * Assigns a unique ID to an element, if it doesn't have one already.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _setMessageId(element) {\n        if (!element.id) {\n            element.id = `${CDK_DESCRIBEDBY_ID_PREFIX}-${nextId++}`;\n        }\n    }\n    /**\n     * Deletes the message element from the global messages container.\n     * @private\n     * @param {?} message\n     * @return {?}\n     */\n    _deleteMessageElement(message) {\n        /** @type {?} */\n        const registeredMessage = messageRegistry.get(message);\n        /** @type {?} */\n        const messageElement = registeredMessage && registeredMessage.messageElement;\n        if (messagesContainer && messageElement) {\n            messagesContainer.removeChild(messageElement);\n        }\n        messageRegistry.delete(message);\n    }\n    /**\n     * Creates the global container for all aria-describedby messages.\n     * @private\n     * @return {?}\n     */\n    _createMessagesContainer() {\n        if (!messagesContainer) {\n            /** @type {?} */\n            const preExistingContainer = this._document.getElementById(MESSAGES_CONTAINER_ID);\n            // When going from the server to the client, we may end up in a situation where there's\n            // already a container on the page, but we don't have a reference to it. Clear the\n            // old container so we don't get duplicates. Doing this, instead of emptying the previous\n            // container, should be slightly faster.\n            if (preExistingContainer) {\n                (/** @type {?} */ (preExistingContainer.parentNode)).removeChild(preExistingContainer);\n            }\n            messagesContainer = this._document.createElement('div');\n            messagesContainer.id = MESSAGES_CONTAINER_ID;\n            messagesContainer.setAttribute('aria-hidden', 'true');\n            messagesContainer.style.display = 'none';\n            this._document.body.appendChild(messagesContainer);\n        }\n    }\n    /**\n     * Deletes the global messages container.\n     * @private\n     * @return {?}\n     */\n    _deleteMessagesContainer() {\n        if (messagesContainer && messagesContainer.parentNode) {\n            messagesContainer.parentNode.removeChild(messagesContainer);\n            messagesContainer = null;\n        }\n    }\n    /**\n     * Removes all cdk-describedby messages that are hosted through the element.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _removeCdkDescribedByReferenceIds(element) {\n        // Remove all aria-describedby reference IDs that are prefixed by CDK_DESCRIBEDBY_ID_PREFIX\n        /** @type {?} */\n        const originalReferenceIds = getAriaReferenceIds(element, 'aria-describedby')\n            .filter((/**\n         * @param {?} id\n         * @return {?}\n         */\n        id => id.indexOf(CDK_DESCRIBEDBY_ID_PREFIX) != 0));\n        element.setAttribute('aria-describedby', originalReferenceIds.join(' '));\n    }\n    /**\n     * Adds a message reference to the element using aria-describedby and increments the registered\n     * message's reference count.\n     * @private\n     * @param {?} element\n     * @param {?} message\n     * @return {?}\n     */\n    _addMessageReference(element, message) {\n        /** @type {?} */\n        const registeredMessage = (/** @type {?} */ (messageRegistry.get(message)));\n        // Add the aria-describedby reference and set the\n        // describedby_host attribute to mark the element.\n        addAriaReferencedId(element, 'aria-describedby', registeredMessage.messageElement.id);\n        element.setAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE, '');\n        registeredMessage.referenceCount++;\n    }\n    /**\n     * Removes a message reference from the element using aria-describedby\n     * and decrements the registered message's reference count.\n     * @private\n     * @param {?} element\n     * @param {?} message\n     * @return {?}\n     */\n    _removeMessageReference(element, message) {\n        /** @type {?} */\n        const registeredMessage = (/** @type {?} */ (messageRegistry.get(message)));\n        registeredMessage.referenceCount--;\n        removeAriaReferencedId(element, 'aria-describedby', registeredMessage.messageElement.id);\n        element.removeAttribute(CDK_DESCRIBEDBY_HOST_ATTRIBUTE);\n    }\n    /**\n     * Returns true if the element has been described by the provided message ID.\n     * @private\n     * @param {?} element\n     * @param {?} message\n     * @return {?}\n     */\n    _isElementDescribedByMessage(element, message) {\n        /** @type {?} */\n        const referenceIds = getAriaReferenceIds(element, 'aria-describedby');\n        /** @type {?} */\n        const registeredMessage = messageRegistry.get(message);\n        /** @type {?} */\n        const messageId = registeredMessage && registeredMessage.messageElement.id;\n        return !!messageId && referenceIds.indexOf(messageId) != -1;\n    }\n    /**\n     * Determines whether a message can be described on a particular element.\n     * @private\n     * @param {?} element\n     * @param {?} message\n     * @return {?}\n     */\n    _canBeDescribed(element, message) {\n        if (!this._isElementNode(element)) {\n            return false;\n        }\n        if (message && typeof message === 'object') {\n            // We'd have to make some assumptions about the description element's text, if the consumer\n            // passed in an element. Assume that if an element is passed in, the consumer has verified\n            // that it can be used as a description.\n            return true;\n        }\n        /** @type {?} */\n        const trimmedMessage = message == null ? '' : `${message}`.trim();\n        /** @type {?} */\n        const ariaLabel = element.getAttribute('aria-label');\n        // We shouldn't set descriptions if they're exactly the same as the `aria-label` of the\n        // element, because screen readers will end up reading out the same text twice in a row.\n        return trimmedMessage ? (!ariaLabel || ariaLabel.trim() !== trimmedMessage) : false;\n    }\n    /**\n     * Checks whether a node is an Element node.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _isElementNode(element) {\n        return element.nodeType === this._document.ELEMENT_NODE;\n    }\n}\nAriaDescriber.ɵfac = function AriaDescriber_Factory(t) { return new (t || AriaDescriber)(ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nAriaDescriber.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ AriaDescriber.ɵprov = ɵɵdefineInjectable({ factory: function AriaDescriber_Factory() { return new AriaDescriber(ɵɵinject(DOCUMENT)); }, token: AriaDescriber, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(AriaDescriber, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AriaDescriber.prototype._document;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/key-manager/list-key-manager.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This interface is for items that can be passed to a ListKeyManager.\n * @record\n */\nfunction ListKeyManagerOption() { }\nif (false) {\n    /**\n     * Whether the option is disabled.\n     * @type {?|undefined}\n     */\n    ListKeyManagerOption.prototype.disabled;\n    /**\n     * Gets the label for this option.\n     * @return {?}\n     */\n    ListKeyManagerOption.prototype.getLabel = function () { };\n}\n/**\n * This class manages keyboard events for selectable lists. If you pass it a query list\n * of items, it will set the active item correctly when arrow events occur.\n * @template T\n */\nclass ListKeyManager {\n    /**\n     * @param {?} _items\n     */\n    constructor(_items) {\n        this._items = _items;\n        this._activeItemIndex = -1;\n        this._activeItem = null;\n        this._wrap = false;\n        this._letterKeyStream = new Subject();\n        this._typeaheadSubscription = Subscription.EMPTY;\n        this._vertical = true;\n        this._allowedModifierKeys = [];\n        /**\n         * Predicate function that can be used to check whether an item should be skipped\n         * by the key manager. By default, disabled items are skipped.\n         */\n        this._skipPredicateFn = (/**\n         * @param {?} item\n         * @return {?}\n         */\n        (item) => item.disabled);\n        // Buffer for the letters that the user has pressed when the typeahead option is turned on.\n        this._pressedLetters = [];\n        /**\n         * Stream that emits any time the TAB key is pressed, so components can react\n         * when focus is shifted off of the list.\n         */\n        this.tabOut = new Subject();\n        /**\n         * Stream that emits whenever the active item of the list manager changes.\n         */\n        this.change = new Subject();\n        // We allow for the items to be an array because, in some cases, the consumer may\n        // not have access to a QueryList of the items they want to manage (e.g. when the\n        // items aren't being collected via `ViewChildren` or `ContentChildren`).\n        if (_items instanceof QueryList) {\n            _items.changes.subscribe((/**\n             * @param {?} newItems\n             * @return {?}\n             */\n            (newItems) => {\n                if (this._activeItem) {\n                    /** @type {?} */\n                    const itemArray = newItems.toArray();\n                    /** @type {?} */\n                    const newIndex = itemArray.indexOf(this._activeItem);\n                    if (newIndex > -1 && newIndex !== this._activeItemIndex) {\n                        this._activeItemIndex = newIndex;\n                    }\n                }\n            }));\n        }\n    }\n    /**\n     * Sets the predicate function that determines which items should be skipped by the\n     * list key manager.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} predicate Function that determines whether the given item should be skipped.\n     * @return {THIS}\n     */\n    skipPredicate(predicate) {\n        (/** @type {?} */ (this))._skipPredicateFn = predicate;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Configures wrapping mode, which determines whether the active item will wrap to\n     * the other end of list when there are no more items in the given direction.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} shouldWrap Whether the list should wrap when reaching the end.\n     * @return {THIS}\n     */\n    withWrap(shouldWrap = true) {\n        (/** @type {?} */ (this))._wrap = shouldWrap;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Configures whether the key manager should be able to move the selection vertically.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} enabled Whether vertical selection should be enabled.\n     * @return {THIS}\n     */\n    withVerticalOrientation(enabled = true) {\n        (/** @type {?} */ (this))._vertical = enabled;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Configures the key manager to move the selection horizontally.\n     * Passing in `null` will disable horizontal movement.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} direction Direction in which the selection can be moved.\n     * @return {THIS}\n     */\n    withHorizontalOrientation(direction) {\n        (/** @type {?} */ (this))._horizontal = direction;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Modifier keys which are allowed to be held down and whose default actions will be prevented\n     * as the user is pressing the arrow keys. Defaults to not allowing any modifier keys.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} keys\n     * @return {THIS}\n     */\n    withAllowedModifierKeys(keys) {\n        (/** @type {?} */ (this))._allowedModifierKeys = keys;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Turns on typeahead mode which allows users to set the active item by typing.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} debounceInterval Time to wait after the last keystroke before setting the active item.\n     * @return {THIS}\n     */\n    withTypeAhead(debounceInterval = 200) {\n        if ((/** @type {?} */ (this))._items.length && (/** @type {?} */ (this))._items.some((/**\n         * @param {?} item\n         * @return {?}\n         */\n        item => typeof item.getLabel !== 'function'))) {\n            throw Error('ListKeyManager items in typeahead mode must implement the `getLabel` method.');\n        }\n        (/** @type {?} */ (this))._typeaheadSubscription.unsubscribe();\n        // Debounce the presses of non-navigational keys, collect the ones that correspond to letters\n        // and convert those letters back into a string. Afterwards find the first item that starts\n        // with that string and select it.\n        (/** @type {?} */ (this))._typeaheadSubscription = (/** @type {?} */ (this))._letterKeyStream.pipe(tap((/**\n         * @param {?} letter\n         * @return {?}\n         */\n        letter => (/** @type {?} */ (this))._pressedLetters.push(letter))), debounceTime(debounceInterval), filter((/**\n         * @return {?}\n         */\n        () => (/** @type {?} */ (this))._pressedLetters.length > 0)), map((/**\n         * @return {?}\n         */\n        () => (/** @type {?} */ (this))._pressedLetters.join('')))).subscribe((/**\n         * @param {?} inputString\n         * @return {?}\n         */\n        inputString => {\n            /** @type {?} */\n            const items = (/** @type {?} */ (this))._getItemsArray();\n            // Start at 1 because we want to start searching at the item immediately\n            // following the current active item.\n            for (let i = 1; i < items.length + 1; i++) {\n                /** @type {?} */\n                const index = ((/** @type {?} */ (this))._activeItemIndex + i) % items.length;\n                /** @type {?} */\n                const item = items[index];\n                if (!(/** @type {?} */ (this))._skipPredicateFn(item) &&\n                    (/** @type {?} */ (item.getLabel))().toUpperCase().trim().indexOf(inputString) === 0) {\n                    (/** @type {?} */ (this)).setActiveItem(index);\n                    break;\n                }\n            }\n            (/** @type {?} */ (this))._pressedLetters = [];\n        }));\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * @param {?} item\n     * @return {?}\n     */\n    setActiveItem(item) {\n        /** @type {?} */\n        const previousIndex = this._activeItemIndex;\n        this.updateActiveItem(item);\n        if (this._activeItemIndex !== previousIndex) {\n            this.change.next(this._activeItemIndex);\n        }\n    }\n    /**\n     * Sets the active item depending on the key event passed in.\n     * @param {?} event Keyboard event to be used for determining which element should be active.\n     * @return {?}\n     */\n    onKeydown(event) {\n        /** @type {?} */\n        const keyCode = event.keyCode;\n        /** @type {?} */\n        const modifiers = ['altKey', 'ctrlKey', 'metaKey', 'shiftKey'];\n        /** @type {?} */\n        const isModifierAllowed = modifiers.every((/**\n         * @param {?} modifier\n         * @return {?}\n         */\n        modifier => {\n            return !event[modifier] || this._allowedModifierKeys.indexOf(modifier) > -1;\n        }));\n        switch (keyCode) {\n            case TAB:\n                this.tabOut.next();\n                return;\n            case DOWN_ARROW:\n                if (this._vertical && isModifierAllowed) {\n                    this.setNextItemActive();\n                    break;\n                }\n                else {\n                    return;\n                }\n            case UP_ARROW:\n                if (this._vertical && isModifierAllowed) {\n                    this.setPreviousItemActive();\n                    break;\n                }\n                else {\n                    return;\n                }\n            case RIGHT_ARROW:\n                if (this._horizontal && isModifierAllowed) {\n                    this._horizontal === 'rtl' ? this.setPreviousItemActive() : this.setNextItemActive();\n                    break;\n                }\n                else {\n                    return;\n                }\n            case LEFT_ARROW:\n                if (this._horizontal && isModifierAllowed) {\n                    this._horizontal === 'rtl' ? this.setNextItemActive() : this.setPreviousItemActive();\n                    break;\n                }\n                else {\n                    return;\n                }\n            default:\n                if (isModifierAllowed || hasModifierKey(event, 'shiftKey')) {\n                    // Attempt to use the `event.key` which also maps it to the user's keyboard language,\n                    // otherwise fall back to resolving alphanumeric characters via the keyCode.\n                    if (event.key && event.key.length === 1) {\n                        this._letterKeyStream.next(event.key.toLocaleUpperCase());\n                    }\n                    else if ((keyCode >= A && keyCode <= Z) || (keyCode >= ZERO && keyCode <= NINE)) {\n                        this._letterKeyStream.next(String.fromCharCode(keyCode));\n                    }\n                }\n                // Note that we return here, in order to avoid preventing\n                // the default action of non-navigational keys.\n                return;\n        }\n        this._pressedLetters = [];\n        event.preventDefault();\n    }\n    /**\n     * Index of the currently active item.\n     * @return {?}\n     */\n    get activeItemIndex() {\n        return this._activeItemIndex;\n    }\n    /**\n     * The active item.\n     * @return {?}\n     */\n    get activeItem() {\n        return this._activeItem;\n    }\n    /**\n     * Gets whether the user is currently typing into the manager using the typeahead feature.\n     * @return {?}\n     */\n    isTyping() {\n        return this._pressedLetters.length > 0;\n    }\n    /**\n     * Sets the active item to the first enabled item in the list.\n     * @return {?}\n     */\n    setFirstItemActive() {\n        this._setActiveItemByIndex(0, 1);\n    }\n    /**\n     * Sets the active item to the last enabled item in the list.\n     * @return {?}\n     */\n    setLastItemActive() {\n        this._setActiveItemByIndex(this._items.length - 1, -1);\n    }\n    /**\n     * Sets the active item to the next enabled item in the list.\n     * @return {?}\n     */\n    setNextItemActive() {\n        this._activeItemIndex < 0 ? this.setFirstItemActive() : this._setActiveItemByDelta(1);\n    }\n    /**\n     * Sets the active item to a previous enabled item in the list.\n     * @return {?}\n     */\n    setPreviousItemActive() {\n        this._activeItemIndex < 0 && this._wrap ? this.setLastItemActive()\n            : this._setActiveItemByDelta(-1);\n    }\n    /**\n     * @param {?} item\n     * @return {?}\n     */\n    updateActiveItem(item) {\n        /** @type {?} */\n        const itemArray = this._getItemsArray();\n        /** @type {?} */\n        const index = typeof item === 'number' ? item : itemArray.indexOf(item);\n        /** @type {?} */\n        const activeItem = itemArray[index];\n        // Explicitly check for `null` and `undefined` because other falsy values are valid.\n        this._activeItem = activeItem == null ? null : activeItem;\n        this._activeItemIndex = index;\n    }\n    /**\n     * This method sets the active item, given a list of items and the delta between the\n     * currently active item and the new active item. It will calculate differently\n     * depending on whether wrap mode is turned on.\n     * @private\n     * @param {?} delta\n     * @return {?}\n     */\n    _setActiveItemByDelta(delta) {\n        this._wrap ? this._setActiveInWrapMode(delta) : this._setActiveInDefaultMode(delta);\n    }\n    /**\n     * Sets the active item properly given \"wrap\" mode. In other words, it will continue to move\n     * down the list until it finds an item that is not disabled, and it will wrap if it\n     * encounters either end of the list.\n     * @private\n     * @param {?} delta\n     * @return {?}\n     */\n    _setActiveInWrapMode(delta) {\n        /** @type {?} */\n        const items = this._getItemsArray();\n        for (let i = 1; i <= items.length; i++) {\n            /** @type {?} */\n            const index = (this._activeItemIndex + (delta * i) + items.length) % items.length;\n            /** @type {?} */\n            const item = items[index];\n            if (!this._skipPredicateFn(item)) {\n                this.setActiveItem(index);\n                return;\n            }\n        }\n    }\n    /**\n     * Sets the active item properly given the default mode. In other words, it will\n     * continue to move down the list until it finds an item that is not disabled. If\n     * it encounters either end of the list, it will stop and not wrap.\n     * @private\n     * @param {?} delta\n     * @return {?}\n     */\n    _setActiveInDefaultMode(delta) {\n        this._setActiveItemByIndex(this._activeItemIndex + delta, delta);\n    }\n    /**\n     * Sets the active item to the first enabled item starting at the index specified. If the\n     * item is disabled, it will move in the fallbackDelta direction until it either\n     * finds an enabled item or encounters the end of the list.\n     * @private\n     * @param {?} index\n     * @param {?} fallbackDelta\n     * @return {?}\n     */\n    _setActiveItemByIndex(index, fallbackDelta) {\n        /** @type {?} */\n        const items = this._getItemsArray();\n        if (!items[index]) {\n            return;\n        }\n        while (this._skipPredicateFn(items[index])) {\n            index += fallbackDelta;\n            if (!items[index]) {\n                return;\n            }\n        }\n        this.setActiveItem(index);\n    }\n    /**\n     * Returns the items as an array.\n     * @private\n     * @return {?}\n     */\n    _getItemsArray() {\n        return this._items instanceof QueryList ? this._items.toArray() : this._items;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._activeItemIndex;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._activeItem;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._wrap;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._letterKeyStream;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._typeaheadSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._vertical;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._horizontal;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._allowedModifierKeys;\n    /**\n     * Predicate function that can be used to check whether an item should be skipped\n     * by the key manager. By default, disabled items are skipped.\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._skipPredicateFn;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._pressedLetters;\n    /**\n     * Stream that emits any time the TAB key is pressed, so components can react\n     * when focus is shifted off of the list.\n     * @type {?}\n     */\n    ListKeyManager.prototype.tabOut;\n    /**\n     * Stream that emits whenever the active item of the list manager changes.\n     * @type {?}\n     */\n    ListKeyManager.prototype.change;\n    /**\n     * @type {?}\n     * @private\n     */\n    ListKeyManager.prototype._items;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/key-manager/activedescendant-key-manager.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This is the interface for highlightable items (used by the ActiveDescendantKeyManager).\n * Each item must know how to style itself as active or inactive and whether or not it is\n * currently disabled.\n * @record\n */\nfunction Highlightable() { }\nif (false) {\n    /**\n     * Applies the styles for an active item to this item.\n     * @return {?}\n     */\n    Highlightable.prototype.setActiveStyles = function () { };\n    /**\n     * Applies the styles for an inactive item to this item.\n     * @return {?}\n     */\n    Highlightable.prototype.setInactiveStyles = function () { };\n}\n/**\n * @template T\n */\nclass ActiveDescendantKeyManager extends ListKeyManager {\n    /**\n     * @param {?} index\n     * @return {?}\n     */\n    setActiveItem(index) {\n        if (this.activeItem) {\n            this.activeItem.setInactiveStyles();\n        }\n        super.setActiveItem(index);\n        if (this.activeItem) {\n            this.activeItem.setActiveStyles();\n        }\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/key-manager/focus-key-manager.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This is the interface for focusable items (used by the FocusKeyManager).\n * Each item must know how to focus itself, whether or not it is currently disabled\n * and be able to supply its label.\n * @record\n */\nfunction FocusableOption() { }\nif (false) {\n    /**\n     * Focuses the `FocusableOption`.\n     * @param {?=} origin\n     * @return {?}\n     */\n    FocusableOption.prototype.focus = function (origin) { };\n}\n/**\n * @template T\n */\nclass FocusKeyManager extends ListKeyManager {\n    constructor() {\n        super(...arguments);\n        this._origin = 'program';\n    }\n    /**\n     * Sets the focus origin that will be passed in to the items for any subsequent `focus` calls.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} origin Focus origin to be used when focusing items.\n     * @return {THIS}\n     */\n    setFocusOrigin(origin) {\n        (/** @type {?} */ (this))._origin = origin;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * @param {?} item\n     * @return {?}\n     */\n    setActiveItem(item) {\n        super.setActiveItem(item);\n        if (this.activeItem) {\n            this.activeItem.focus(this._origin);\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusKeyManager.prototype._origin;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/interactivity-checker/interactivity-checker.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// The InteractivityChecker leans heavily on the ally.js accessibility utilities.\n// Methods like `isTabbable` are only covering specific edge-cases for the browsers which are\n// supported.\n/**\n * Utility for checking the interactivity of an element, such as whether is is focusable or\n * tabbable.\n */\nclass InteractivityChecker {\n    /**\n     * @param {?} _platform\n     */\n    constructor(_platform) {\n        this._platform = _platform;\n    }\n    /**\n     * Gets whether an element is disabled.\n     *\n     * @param {?} element Element to be checked.\n     * @return {?} Whether the element is disabled.\n     */\n    isDisabled(element) {\n        // This does not capture some cases, such as a non-form control with a disabled attribute or\n        // a form control inside of a disabled form, but should capture the most common cases.\n        return element.hasAttribute('disabled');\n    }\n    /**\n     * Gets whether an element is visible for the purposes of interactivity.\n     *\n     * This will capture states like `display: none` and `visibility: hidden`, but not things like\n     * being clipped by an `overflow: hidden` parent or being outside the viewport.\n     *\n     * @param {?} element\n     * @return {?} Whether the element is visible.\n     */\n    isVisible(element) {\n        return hasGeometry(element) && getComputedStyle(element).visibility === 'visible';\n    }\n    /**\n     * Gets whether an element can be reached via Tab key.\n     * Assumes that the element has already been checked with isFocusable.\n     *\n     * @param {?} element Element to be checked.\n     * @return {?} Whether the element is tabbable.\n     */\n    isTabbable(element) {\n        // Nothing is tabbable on the server 😎\n        if (!this._platform.isBrowser) {\n            return false;\n        }\n        /** @type {?} */\n        const frameElement = getFrameElement(getWindow(element));\n        if (frameElement) {\n            /** @type {?} */\n            const frameType = frameElement && frameElement.nodeName.toLowerCase();\n            // Frame elements inherit their tabindex onto all child elements.\n            if (getTabIndexValue(frameElement) === -1) {\n                return false;\n            }\n            // Webkit and Blink consider anything inside of an <object> element as non-tabbable.\n            if ((this._platform.BLINK || this._platform.WEBKIT) && frameType === 'object') {\n                return false;\n            }\n            // Webkit and Blink disable tabbing to an element inside of an invisible frame.\n            if ((this._platform.BLINK || this._platform.WEBKIT) && !this.isVisible(frameElement)) {\n                return false;\n            }\n        }\n        /** @type {?} */\n        let nodeName = element.nodeName.toLowerCase();\n        /** @type {?} */\n        let tabIndexValue = getTabIndexValue(element);\n        if (element.hasAttribute('contenteditable')) {\n            return tabIndexValue !== -1;\n        }\n        if (nodeName === 'iframe') {\n            // The frames may be tabbable depending on content, but it's not possibly to reliably\n            // investigate the content of the frames.\n            return false;\n        }\n        if (nodeName === 'audio') {\n            if (!element.hasAttribute('controls')) {\n                // By default an <audio> element without the controls enabled is not tabbable.\n                return false;\n            }\n            else if (this._platform.BLINK) {\n                // In Blink <audio controls> elements are always tabbable.\n                return true;\n            }\n        }\n        if (nodeName === 'video') {\n            if (!element.hasAttribute('controls') && this._platform.TRIDENT) {\n                // In Trident a <video> element without the controls enabled is not tabbable.\n                return false;\n            }\n            else if (this._platform.BLINK || this._platform.FIREFOX) {\n                // In Chrome and Firefox <video controls> elements are always tabbable.\n                return true;\n            }\n        }\n        if (nodeName === 'object' && (this._platform.BLINK || this._platform.WEBKIT)) {\n            // In all Blink and WebKit based browsers <object> elements are never tabbable.\n            return false;\n        }\n        // In iOS the browser only considers some specific elements as tabbable.\n        if (this._platform.WEBKIT && this._platform.IOS && !isPotentiallyTabbableIOS(element)) {\n            return false;\n        }\n        return element.tabIndex >= 0;\n    }\n    /**\n     * Gets whether an element can be focused by the user.\n     *\n     * @param {?} element Element to be checked.\n     * @return {?} Whether the element is focusable.\n     */\n    isFocusable(element) {\n        // Perform checks in order of left to most expensive.\n        // Again, naive approach that does not capture many edge cases and browser quirks.\n        return isPotentiallyFocusable(element) && !this.isDisabled(element) && this.isVisible(element);\n    }\n}\nInteractivityChecker.ɵfac = function InteractivityChecker_Factory(t) { return new (t || InteractivityChecker)(ɵngcc0.ɵɵinject(ɵngcc1.Platform)); };\n/** @nocollapse */\nInteractivityChecker.ctorParameters = () => [\n    { type: Platform }\n];\n/** @nocollapse */ InteractivityChecker.ɵprov = ɵɵdefineInjectable({ factory: function InteractivityChecker_Factory() { return new InteractivityChecker(ɵɵinject(Platform)); }, token: InteractivityChecker, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(InteractivityChecker, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc1.Platform }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    InteractivityChecker.prototype._platform;\n}\n/**\n * Returns the frame element from a window object. Since browsers like MS Edge throw errors if\n * the frameElement property is being accessed from a different host address, this property\n * should be accessed carefully.\n * @param {?} window\n * @return {?}\n */\nfunction getFrameElement(window) {\n    try {\n        return (/** @type {?} */ (window.frameElement));\n    }\n    catch (_a) {\n        return null;\n    }\n}\n/**\n * Checks whether the specified element has any geometry / rectangles.\n * @param {?} element\n * @return {?}\n */\nfunction hasGeometry(element) {\n    // Use logic from jQuery to check for an invisible element.\n    // See https://github.com/jquery/jquery/blob/master/src/css/hiddenVisibleSelectors.js#L12\n    return !!(element.offsetWidth || element.offsetHeight ||\n        (typeof element.getClientRects === 'function' && element.getClientRects().length));\n}\n/**\n * Gets whether an element's\n * @param {?} element\n * @return {?}\n */\nfunction isNativeFormElement(element) {\n    /** @type {?} */\n    let nodeName = element.nodeName.toLowerCase();\n    return nodeName === 'input' ||\n        nodeName === 'select' ||\n        nodeName === 'button' ||\n        nodeName === 'textarea';\n}\n/**\n * Gets whether an element is an `<input type=\"hidden\">`.\n * @param {?} element\n * @return {?}\n */\nfunction isHiddenInput(element) {\n    return isInputElement(element) && element.type == 'hidden';\n}\n/**\n * Gets whether an element is an anchor that has an href attribute.\n * @param {?} element\n * @return {?}\n */\nfunction isAnchorWithHref(element) {\n    return isAnchorElement(element) && element.hasAttribute('href');\n}\n/**\n * Gets whether an element is an input element.\n * @param {?} element\n * @return {?}\n */\nfunction isInputElement(element) {\n    return element.nodeName.toLowerCase() == 'input';\n}\n/**\n * Gets whether an element is an anchor element.\n * @param {?} element\n * @return {?}\n */\nfunction isAnchorElement(element) {\n    return element.nodeName.toLowerCase() == 'a';\n}\n/**\n * Gets whether an element has a valid tabindex.\n * @param {?} element\n * @return {?}\n */\nfunction hasValidTabIndex(element) {\n    if (!element.hasAttribute('tabindex') || element.tabIndex === undefined) {\n        return false;\n    }\n    /** @type {?} */\n    let tabIndex = element.getAttribute('tabindex');\n    // IE11 parses tabindex=\"\" as the value \"-32768\"\n    if (tabIndex == '-32768') {\n        return false;\n    }\n    return !!(tabIndex && !isNaN(parseInt(tabIndex, 10)));\n}\n/**\n * Returns the parsed tabindex from the element attributes instead of returning the\n * evaluated tabindex from the browsers defaults.\n * @param {?} element\n * @return {?}\n */\nfunction getTabIndexValue(element) {\n    if (!hasValidTabIndex(element)) {\n        return null;\n    }\n    // See browser issue in Gecko https://bugzilla.mozilla.org/show_bug.cgi?id=1128054\n    /** @type {?} */\n    const tabIndex = parseInt(element.getAttribute('tabindex') || '', 10);\n    return isNaN(tabIndex) ? -1 : tabIndex;\n}\n/**\n * Checks whether the specified element is potentially tabbable on iOS\n * @param {?} element\n * @return {?}\n */\nfunction isPotentiallyTabbableIOS(element) {\n    /** @type {?} */\n    let nodeName = element.nodeName.toLowerCase();\n    /** @type {?} */\n    let inputType = nodeName === 'input' && ((/** @type {?} */ (element))).type;\n    return inputType === 'text'\n        || inputType === 'password'\n        || nodeName === 'select'\n        || nodeName === 'textarea';\n}\n/**\n * Gets whether an element is potentially focusable without taking current visible/disabled state\n * into account.\n * @param {?} element\n * @return {?}\n */\nfunction isPotentiallyFocusable(element) {\n    // Inputs are potentially focusable *unless* they're type=\"hidden\".\n    if (isHiddenInput(element)) {\n        return false;\n    }\n    return isNativeFormElement(element) ||\n        isAnchorWithHref(element) ||\n        element.hasAttribute('contenteditable') ||\n        hasValidTabIndex(element);\n}\n/**\n * Gets the parent window of a DOM node with regards of being inside of an iframe.\n * @param {?} node\n * @return {?}\n */\nfunction getWindow(node) {\n    // ownerDocument is null if `node` itself *is* a document.\n    return node.ownerDocument && node.ownerDocument.defaultView || window;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/focus-trap.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Class that allows for trapping focus within a DOM element.\n *\n * This class currently uses a relatively simple approach to focus trapping.\n * It assumes that the tab order is the same as DOM order, which is not necessarily true.\n * Things like `tabIndex > 0`, flex `order`, and shadow roots can cause to two to misalign.\n *\n * @deprecated Use `ConfigurableFocusTrap` instead.\n * \\@breaking-change for 11.0.0 Remove this class.\n */\nclass FocusTrap {\n    /**\n     * @param {?} _element\n     * @param {?} _checker\n     * @param {?} _ngZone\n     * @param {?} _document\n     * @param {?=} deferAnchors\n     */\n    constructor(_element, _checker, _ngZone, _document, deferAnchors = false) {\n        this._element = _element;\n        this._checker = _checker;\n        this._ngZone = _ngZone;\n        this._document = _document;\n        this._hasAttached = false;\n        // Event listeners for the anchors. Need to be regular functions so that we can unbind them later.\n        this.startAnchorListener = (/**\n         * @return {?}\n         */\n        () => this.focusLastTabbableElement());\n        this.endAnchorListener = (/**\n         * @return {?}\n         */\n        () => this.focusFirstTabbableElement());\n        this._enabled = true;\n        if (!deferAnchors) {\n            this.attachAnchors();\n        }\n    }\n    /**\n     * Whether the focus trap is active.\n     * @return {?}\n     */\n    get enabled() { return this._enabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set enabled(value) {\n        this._enabled = value;\n        if (this._startAnchor && this._endAnchor) {\n            this._toggleAnchorTabIndex(value, this._startAnchor);\n            this._toggleAnchorTabIndex(value, this._endAnchor);\n        }\n    }\n    /**\n     * Destroys the focus trap by cleaning up the anchors.\n     * @return {?}\n     */\n    destroy() {\n        /** @type {?} */\n        const startAnchor = this._startAnchor;\n        /** @type {?} */\n        const endAnchor = this._endAnchor;\n        if (startAnchor) {\n            startAnchor.removeEventListener('focus', this.startAnchorListener);\n            if (startAnchor.parentNode) {\n                startAnchor.parentNode.removeChild(startAnchor);\n            }\n        }\n        if (endAnchor) {\n            endAnchor.removeEventListener('focus', this.endAnchorListener);\n            if (endAnchor.parentNode) {\n                endAnchor.parentNode.removeChild(endAnchor);\n            }\n        }\n        this._startAnchor = this._endAnchor = null;\n    }\n    /**\n     * Inserts the anchors into the DOM. This is usually done automatically\n     * in the constructor, but can be deferred for cases like directives with `*ngIf`.\n     * @return {?} Whether the focus trap managed to attach successfuly. This may not be the case\n     * if the target element isn't currently in the DOM.\n     */\n    attachAnchors() {\n        // If we're not on the browser, there can be no focus to trap.\n        if (this._hasAttached) {\n            return true;\n        }\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            if (!this._startAnchor) {\n                this._startAnchor = this._createAnchor();\n                (/** @type {?} */ (this._startAnchor)).addEventListener('focus', this.startAnchorListener);\n            }\n            if (!this._endAnchor) {\n                this._endAnchor = this._createAnchor();\n                (/** @type {?} */ (this._endAnchor)).addEventListener('focus', this.endAnchorListener);\n            }\n        }));\n        if (this._element.parentNode) {\n            this._element.parentNode.insertBefore((/** @type {?} */ (this._startAnchor)), this._element);\n            this._element.parentNode.insertBefore((/** @type {?} */ (this._endAnchor)), this._element.nextSibling);\n            this._hasAttached = true;\n        }\n        return this._hasAttached;\n    }\n    /**\n     * Waits for the zone to stabilize, then either focuses the first element that the\n     * user specified, or the first tabbable element.\n     * @return {?} Returns a promise that resolves with a boolean, depending\n     * on whether focus was moved successfuly.\n     */\n    focusInitialElementWhenReady() {\n        return new Promise((/**\n         * @param {?} resolve\n         * @return {?}\n         */\n        resolve => {\n            this._executeOnStable((/**\n             * @return {?}\n             */\n            () => resolve(this.focusInitialElement())));\n        }));\n    }\n    /**\n     * Waits for the zone to stabilize, then focuses\n     * the first tabbable element within the focus trap region.\n     * @return {?} Returns a promise that resolves with a boolean, depending\n     * on whether focus was moved successfuly.\n     */\n    focusFirstTabbableElementWhenReady() {\n        return new Promise((/**\n         * @param {?} resolve\n         * @return {?}\n         */\n        resolve => {\n            this._executeOnStable((/**\n             * @return {?}\n             */\n            () => resolve(this.focusFirstTabbableElement())));\n        }));\n    }\n    /**\n     * Waits for the zone to stabilize, then focuses\n     * the last tabbable element within the focus trap region.\n     * @return {?} Returns a promise that resolves with a boolean, depending\n     * on whether focus was moved successfuly.\n     */\n    focusLastTabbableElementWhenReady() {\n        return new Promise((/**\n         * @param {?} resolve\n         * @return {?}\n         */\n        resolve => {\n            this._executeOnStable((/**\n             * @return {?}\n             */\n            () => resolve(this.focusLastTabbableElement())));\n        }));\n    }\n    /**\n     * Get the specified boundary element of the trapped region.\n     * @private\n     * @param {?} bound The boundary to get (start or end of trapped region).\n     * @return {?} The boundary element.\n     */\n    _getRegionBoundary(bound) {\n        // Contains the deprecated version of selector, for temporary backwards comparability.\n        /** @type {?} */\n        let markers = (/** @type {?} */ (this._element.querySelectorAll(`[cdk-focus-region-${bound}], ` +\n            `[cdkFocusRegion${bound}], ` +\n            `[cdk-focus-${bound}]`)));\n        for (let i = 0; i < markers.length; i++) {\n            // @breaking-change 8.0.0\n            if (markers[i].hasAttribute(`cdk-focus-${bound}`)) {\n                console.warn(`Found use of deprecated attribute 'cdk-focus-${bound}', ` +\n                    `use 'cdkFocusRegion${bound}' instead. The deprecated ` +\n                    `attribute will be removed in 8.0.0.`, markers[i]);\n            }\n            else if (markers[i].hasAttribute(`cdk-focus-region-${bound}`)) {\n                console.warn(`Found use of deprecated attribute 'cdk-focus-region-${bound}', ` +\n                    `use 'cdkFocusRegion${bound}' instead. The deprecated attribute ` +\n                    `will be removed in 8.0.0.`, markers[i]);\n            }\n        }\n        if (bound == 'start') {\n            return markers.length ? markers[0] : this._getFirstTabbableElement(this._element);\n        }\n        return markers.length ?\n            markers[markers.length - 1] : this._getLastTabbableElement(this._element);\n    }\n    /**\n     * Focuses the element that should be focused when the focus trap is initialized.\n     * @return {?} Whether focus was moved successfuly.\n     */\n    focusInitialElement() {\n        // Contains the deprecated version of selector, for temporary backwards comparability.\n        /** @type {?} */\n        const redirectToElement = (/** @type {?} */ (this._element.querySelector(`[cdk-focus-initial], ` +\n            `[cdkFocusInitial]`)));\n        if (redirectToElement) {\n            // @breaking-change 8.0.0\n            if (redirectToElement.hasAttribute(`cdk-focus-initial`)) {\n                console.warn(`Found use of deprecated attribute 'cdk-focus-initial', ` +\n                    `use 'cdkFocusInitial' instead. The deprecated attribute ` +\n                    `will be removed in 8.0.0`, redirectToElement);\n            }\n            // Warn the consumer if the element they've pointed to\n            // isn't focusable, when not in production mode.\n            if (isDevMode() && !this._checker.isFocusable(redirectToElement)) {\n                console.warn(`Element matching '[cdkFocusInitial]' is not focusable.`, redirectToElement);\n            }\n            redirectToElement.focus();\n            return true;\n        }\n        return this.focusFirstTabbableElement();\n    }\n    /**\n     * Focuses the first tabbable element within the focus trap region.\n     * @return {?} Whether focus was moved successfuly.\n     */\n    focusFirstTabbableElement() {\n        /** @type {?} */\n        const redirectToElement = this._getRegionBoundary('start');\n        if (redirectToElement) {\n            redirectToElement.focus();\n        }\n        return !!redirectToElement;\n    }\n    /**\n     * Focuses the last tabbable element within the focus trap region.\n     * @return {?} Whether focus was moved successfuly.\n     */\n    focusLastTabbableElement() {\n        /** @type {?} */\n        const redirectToElement = this._getRegionBoundary('end');\n        if (redirectToElement) {\n            redirectToElement.focus();\n        }\n        return !!redirectToElement;\n    }\n    /**\n     * Checks whether the focus trap has successfuly been attached.\n     * @return {?}\n     */\n    hasAttached() {\n        return this._hasAttached;\n    }\n    /**\n     * Get the first tabbable element from a DOM subtree (inclusive).\n     * @private\n     * @param {?} root\n     * @return {?}\n     */\n    _getFirstTabbableElement(root) {\n        if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {\n            return root;\n        }\n        // Iterate in DOM order. Note that IE doesn't have `children` for SVG so we fall\n        // back to `childNodes` which includes text nodes, comments etc.\n        /** @type {?} */\n        let children = root.children || root.childNodes;\n        for (let i = 0; i < children.length; i++) {\n            /** @type {?} */\n            let tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE ?\n                this._getFirstTabbableElement((/** @type {?} */ (children[i]))) :\n                null;\n            if (tabbableChild) {\n                return tabbableChild;\n            }\n        }\n        return null;\n    }\n    /**\n     * Get the last tabbable element from a DOM subtree (inclusive).\n     * @private\n     * @param {?} root\n     * @return {?}\n     */\n    _getLastTabbableElement(root) {\n        if (this._checker.isFocusable(root) && this._checker.isTabbable(root)) {\n            return root;\n        }\n        // Iterate in reverse DOM order.\n        /** @type {?} */\n        let children = root.children || root.childNodes;\n        for (let i = children.length - 1; i >= 0; i--) {\n            /** @type {?} */\n            let tabbableChild = children[i].nodeType === this._document.ELEMENT_NODE ?\n                this._getLastTabbableElement((/** @type {?} */ (children[i]))) :\n                null;\n            if (tabbableChild) {\n                return tabbableChild;\n            }\n        }\n        return null;\n    }\n    /**\n     * Creates an anchor element.\n     * @private\n     * @return {?}\n     */\n    _createAnchor() {\n        /** @type {?} */\n        const anchor = this._document.createElement('div');\n        this._toggleAnchorTabIndex(this._enabled, anchor);\n        anchor.classList.add('cdk-visually-hidden');\n        anchor.classList.add('cdk-focus-trap-anchor');\n        anchor.setAttribute('aria-hidden', 'true');\n        return anchor;\n    }\n    /**\n     * Toggles the `tabindex` of an anchor, based on the enabled state of the focus trap.\n     * @private\n     * @param {?} isEnabled Whether the focus trap is enabled.\n     * @param {?} anchor Anchor on which to toggle the tabindex.\n     * @return {?}\n     */\n    _toggleAnchorTabIndex(isEnabled, anchor) {\n        // Remove the tabindex completely, rather than setting it to -1, because if the\n        // element has a tabindex, the user might still hit it when navigating with the arrow keys.\n        isEnabled ? anchor.setAttribute('tabindex', '0') : anchor.removeAttribute('tabindex');\n    }\n    /**\n     * Toggles the`tabindex` of both anchors to either trap Tab focus or allow it to escape.\n     * @protected\n     * @param {?} enabled\n     * @return {?}\n     */\n    toggleAnchors(enabled) {\n        if (this._startAnchor && this._endAnchor) {\n            this._toggleAnchorTabIndex(enabled, this._startAnchor);\n            this._toggleAnchorTabIndex(enabled, this._endAnchor);\n        }\n    }\n    /**\n     * Executes a function when the zone is stable.\n     * @private\n     * @param {?} fn\n     * @return {?}\n     */\n    _executeOnStable(fn) {\n        if (this._ngZone.isStable) {\n            fn();\n        }\n        else {\n            this._ngZone.onStable.asObservable().pipe(take(1)).subscribe(fn);\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrap.prototype._startAnchor;\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrap.prototype._endAnchor;\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrap.prototype._hasAttached;\n    /**\n     * @type {?}\n     * @protected\n     */\n    FocusTrap.prototype.startAnchorListener;\n    /**\n     * @type {?}\n     * @protected\n     */\n    FocusTrap.prototype.endAnchorListener;\n    /**\n     * @type {?}\n     * @protected\n     */\n    FocusTrap.prototype._enabled;\n    /** @type {?} */\n    FocusTrap.prototype._element;\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrap.prototype._checker;\n    /** @type {?} */\n    FocusTrap.prototype._ngZone;\n    /** @type {?} */\n    FocusTrap.prototype._document;\n}\n/**\n * Factory that allows easy instantiation of focus traps.\n * @deprecated Use `ConfigurableFocusTrapFactory` instead.\n * \\@breaking-change for 11.0.0 Remove this class.\n */\nclass FocusTrapFactory {\n    /**\n     * @param {?} _checker\n     * @param {?} _ngZone\n     * @param {?} _document\n     */\n    constructor(_checker, _ngZone, _document) {\n        this._checker = _checker;\n        this._ngZone = _ngZone;\n        this._document = _document;\n    }\n    /**\n     * Creates a focus-trapped region around the given element.\n     * @param {?} element The element around which focus will be trapped.\n     * @param {?=} deferCaptureElements Defers the creation of focus-capturing elements to be done\n     *     manually by the user.\n     * @return {?} The created focus trap instance.\n     */\n    create(element, deferCaptureElements = false) {\n        return new FocusTrap(element, this._checker, this._ngZone, this._document, deferCaptureElements);\n    }\n}\nFocusTrapFactory.ɵfac = function FocusTrapFactory_Factory(t) { return new (t || FocusTrapFactory)(ɵngcc0.ɵɵinject(InteractivityChecker), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nFocusTrapFactory.ctorParameters = () => [\n    { type: InteractivityChecker },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ FocusTrapFactory.ɵprov = ɵɵdefineInjectable({ factory: function FocusTrapFactory_Factory() { return new FocusTrapFactory(ɵɵinject(InteractivityChecker), ɵɵinject(NgZone), ɵɵinject(DOCUMENT)); }, token: FocusTrapFactory, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FocusTrapFactory, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: InteractivityChecker }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrapFactory.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrapFactory.prototype._checker;\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrapFactory.prototype._ngZone;\n}\n/**\n * Directive for trapping focus within a region.\n */\nclass CdkTrapFocus {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _focusTrapFactory\n     * @param {?} _document\n     */\n    constructor(_elementRef, _focusTrapFactory, _document) {\n        this._elementRef = _elementRef;\n        this._focusTrapFactory = _focusTrapFactory;\n        /**\n         * Previously focused element to restore focus to upon destroy when using autoCapture.\n         */\n        this._previouslyFocusedElement = null;\n        this._document = _document;\n        this.focusTrap = this._focusTrapFactory.create(this._elementRef.nativeElement, true);\n    }\n    /**\n     * Whether the focus trap is active.\n     * @return {?}\n     */\n    get enabled() { return this.focusTrap.enabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set enabled(value) { this.focusTrap.enabled = coerceBooleanProperty(value); }\n    /**\n     * Whether the directive should automatially move focus into the trapped region upon\n     * initialization and return focus to the previous activeElement upon destruction.\n     * @return {?}\n     */\n    get autoCapture() { return this._autoCapture; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set autoCapture(value) { this._autoCapture = coerceBooleanProperty(value); }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this.focusTrap.destroy();\n        // If we stored a previously focused element when using autoCapture, return focus to that\n        // element now that the trapped region is being destroyed.\n        if (this._previouslyFocusedElement) {\n            this._previouslyFocusedElement.focus();\n            this._previouslyFocusedElement = null;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this.focusTrap.attachAnchors();\n        if (this.autoCapture) {\n            this._previouslyFocusedElement = (/** @type {?} */ (this._document.activeElement));\n            this.focusTrap.focusInitialElementWhenReady();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngDoCheck() {\n        if (!this.focusTrap.hasAttached()) {\n            this.focusTrap.attachAnchors();\n        }\n    }\n}\nCdkTrapFocus.ɵfac = function CdkTrapFocus_Factory(t) { return new (t || CdkTrapFocus)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(FocusTrapFactory), ɵngcc0.ɵɵdirectiveInject(DOCUMENT)); };\nCdkTrapFocus.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkTrapFocus, selectors: [[\"\", \"cdkTrapFocus\", \"\"]], inputs: { enabled: [\"cdkTrapFocus\", \"enabled\"], autoCapture: [\"cdkTrapFocusAutoCapture\", \"autoCapture\"] }, exportAs: [\"cdkTrapFocus\"] });\n/** @nocollapse */\nCdkTrapFocus.ctorParameters = () => [\n    { type: ElementRef },\n    { type: FocusTrapFactory },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\nCdkTrapFocus.propDecorators = {\n    enabled: [{ type: Input, args: ['cdkTrapFocus',] }],\n    autoCapture: [{ type: Input, args: ['cdkTrapFocusAutoCapture',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkTrapFocus, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkTrapFocus]',\n                exportAs: 'cdkTrapFocus'\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: FocusTrapFactory }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, { enabled: [{\n            type: Input,\n            args: ['cdkTrapFocus']\n        }], autoCapture: [{\n            type: Input,\n            args: ['cdkTrapFocusAutoCapture']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkTrapFocus.ngAcceptInputType_enabled;\n    /** @type {?} */\n    CdkTrapFocus.ngAcceptInputType_autoCapture;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkTrapFocus.prototype._document;\n    /**\n     * Underlying FocusTrap instance.\n     * @type {?}\n     */\n    CdkTrapFocus.prototype.focusTrap;\n    /**\n     * Previously focused element to restore focus to upon destroy when using autoCapture.\n     * @type {?}\n     * @private\n     */\n    CdkTrapFocus.prototype._previouslyFocusedElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkTrapFocus.prototype._autoCapture;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkTrapFocus.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkTrapFocus.prototype._focusTrapFactory;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/configurable-focus-trap.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Class that allows for trapping focus within a DOM element.\n *\n * This class uses a strategy pattern that determines how it traps focus.\n * See FocusTrapInertStrategy.\n */\nclass ConfigurableFocusTrap extends FocusTrap {\n    /**\n     * @param {?} _element\n     * @param {?} _checker\n     * @param {?} _ngZone\n     * @param {?} _document\n     * @param {?} _focusTrapManager\n     * @param {?} _inertStrategy\n     * @param {?} config\n     */\n    constructor(_element, _checker, _ngZone, _document, _focusTrapManager, _inertStrategy, config) {\n        super(_element, _checker, _ngZone, _document, config.defer);\n        this._focusTrapManager = _focusTrapManager;\n        this._inertStrategy = _inertStrategy;\n        this._focusTrapManager.register(this);\n    }\n    /**\n     * Whether the FocusTrap is enabled.\n     * @return {?}\n     */\n    get enabled() { return this._enabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set enabled(value) {\n        this._enabled = value;\n        if (this._enabled) {\n            this._focusTrapManager.register(this);\n        }\n        else {\n            this._focusTrapManager.deregister(this);\n        }\n    }\n    /**\n     * Notifies the FocusTrapManager that this FocusTrap will be destroyed.\n     * @return {?}\n     */\n    destroy() {\n        this._focusTrapManager.deregister(this);\n        super.destroy();\n    }\n    /**\n     * \\@docs-private Implemented as part of ManagedFocusTrap.\n     * @return {?}\n     */\n    _enable() {\n        this._inertStrategy.preventFocus(this);\n        this.toggleAnchors(true);\n    }\n    /**\n     * \\@docs-private Implemented as part of ManagedFocusTrap.\n     * @return {?}\n     */\n    _disable() {\n        this._inertStrategy.allowFocus(this);\n        this.toggleAnchors(false);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ConfigurableFocusTrap.prototype._focusTrapManager;\n    /**\n     * @type {?}\n     * @private\n     */\n    ConfigurableFocusTrap.prototype._inertStrategy;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/polyfill.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * IE 11 compatible closest implementation that is able to start from non-Element Nodes.\n * @param {?} element\n * @param {?} selector\n * @return {?}\n */\nfunction closest(element, selector) {\n    if (!(element instanceof Node)) {\n        return null;\n    }\n    /** @type {?} */\n    let curr = element;\n    while (curr != null && !(curr instanceof Element)) {\n        curr = curr.parentNode;\n    }\n    return curr && (/** @type {?} */ ((hasNativeClosest ?\n        curr.closest(selector) : polyfillClosest(curr, selector))));\n}\n/**\n * Polyfill for browsers without Element.closest.\n * @param {?} element\n * @param {?} selector\n * @return {?}\n */\nfunction polyfillClosest(element, selector) {\n    /** @type {?} */\n    let curr = element;\n    while (curr != null && !(curr instanceof Element && matches(curr, selector))) {\n        curr = curr.parentNode;\n    }\n    return (/** @type {?} */ ((curr || null)));\n}\n/** @type {?} */\nconst hasNativeClosest = typeof Element != 'undefined' && !!Element.prototype.closest;\n/**\n * IE 11 compatible matches implementation.\n * @param {?} element\n * @param {?} selector\n * @return {?}\n */\nfunction matches(element, selector) {\n    return element.matches ?\n        element.matches(selector) :\n        ((/** @type {?} */ (element)))['msMatchesSelector'](selector);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/event-listener-inert-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Lightweight FocusTrapInertStrategy that adds a document focus event\n * listener to redirect focus back inside the FocusTrap.\n */\nclass EventListenerFocusTrapInertStrategy {\n    constructor() {\n        /**\n         * Focus event handler.\n         */\n        this._listener = null;\n    }\n    /**\n     * Adds a document event listener that keeps focus inside the FocusTrap.\n     * @param {?} focusTrap\n     * @return {?}\n     */\n    preventFocus(focusTrap) {\n        // Ensure there's only one listener per document\n        if (this._listener) {\n            focusTrap._document.removeEventListener('focus', (/** @type {?} */ (this._listener)), true);\n        }\n        this._listener = (/**\n         * @param {?} e\n         * @return {?}\n         */\n        (e) => this._trapFocus(focusTrap, e));\n        focusTrap._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            focusTrap._document.addEventListener('focus', (/** @type {?} */ (this._listener)), true);\n        }));\n    }\n    /**\n     * Removes the event listener added in preventFocus.\n     * @param {?} focusTrap\n     * @return {?}\n     */\n    allowFocus(focusTrap) {\n        if (!this._listener) {\n            return;\n        }\n        focusTrap._document.removeEventListener('focus', (/** @type {?} */ (this._listener)), true);\n        this._listener = null;\n    }\n    /**\n     * Refocuses the first element in the FocusTrap if the focus event target was outside\n     * the FocusTrap.\n     *\n     * This is an event listener callback. The event listener is added in runOutsideAngular,\n     * so all this code runs outside Angular as well.\n     * @private\n     * @param {?} focusTrap\n     * @param {?} event\n     * @return {?}\n     */\n    _trapFocus(focusTrap, event) {\n        /** @type {?} */\n        const target = (/** @type {?} */ (event.target));\n        /** @type {?} */\n        const focusTrapRoot = focusTrap._element;\n        // Don't refocus if target was in an overlay, because the overlay might be associated\n        // with an element inside the FocusTrap, ex. mat-select.\n        if (!focusTrapRoot.contains(target) && closest(target, 'div.cdk-overlay-pane') === null) {\n            // Some legacy FocusTrap usages have logic that focuses some element on the page\n            // just before FocusTrap is destroyed. For backwards compatibility, wait\n            // to be sure FocusTrap is still enabled before refocusing.\n            setTimeout((/**\n             * @return {?}\n             */\n            () => {\n                // Check whether focus wasn't put back into the focus trap while the timeout was pending.\n                if (focusTrap.enabled && !focusTrapRoot.contains(focusTrap._document.activeElement)) {\n                    focusTrap.focusFirstTabbableElement();\n                }\n            }));\n        }\n    }\n}\nif (false) {\n    /**\n     * Focus event handler.\n     * @type {?}\n     * @private\n     */\n    EventListenerFocusTrapInertStrategy.prototype._listener;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/configurable-focus-trap-config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Configuration for creating a ConfigurableFocusTrap.\n */\nclass ConfigurableFocusTrapConfig {\n    constructor() {\n        /**\n         * Whether to defer the creation of FocusTrap elements to be\n         * done manually by the user. Default is to create them\n         * automatically.\n         */\n        this.defer = false;\n    }\n}\nif (false) {\n    /**\n     * Whether to defer the creation of FocusTrap elements to be\n     * done manually by the user. Default is to create them\n     * automatically.\n     * @type {?}\n     */\n    ConfigurableFocusTrapConfig.prototype.defer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/focus-trap-inert-strategy.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The injection token used to specify the inert strategy.\n * @type {?}\n */\nconst FOCUS_TRAP_INERT_STRATEGY = new InjectionToken('FOCUS_TRAP_INERT_STRATEGY');\n/**\n * A strategy that dictates how FocusTrap should prevent elements\n * outside of the FocusTrap from being focused.\n * @record\n */\nfunction FocusTrapInertStrategy() { }\nif (false) {\n    /**\n     * Makes all elements outside focusTrap unfocusable.\n     * @param {?} focusTrap\n     * @return {?}\n     */\n    FocusTrapInertStrategy.prototype.preventFocus = function (focusTrap) { };\n    /**\n     * Reverts elements made unfocusable by preventFocus to their previous state.\n     * @param {?} focusTrap\n     * @return {?}\n     */\n    FocusTrapInertStrategy.prototype.allowFocus = function (focusTrap) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/focus-trap-manager.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A FocusTrap managed by FocusTrapManager.\n * Implemented by ConfigurableFocusTrap to avoid circular dependency.\n * @record\n */\nfunction ManagedFocusTrap() { }\nif (false) {\n    /**\n     * @return {?}\n     */\n    ManagedFocusTrap.prototype._enable = function () { };\n    /**\n     * @return {?}\n     */\n    ManagedFocusTrap.prototype._disable = function () { };\n    /**\n     * @return {?}\n     */\n    ManagedFocusTrap.prototype.focusInitialElementWhenReady = function () { };\n}\n/**\n * Injectable that ensures only the most recently enabled FocusTrap is active.\n */\nclass FocusTrapManager {\n    constructor() {\n        // A stack of the FocusTraps on the page. Only the FocusTrap at the\n        // top of the stack is active.\n        this._focusTrapStack = [];\n    }\n    /**\n     * Disables the FocusTrap at the top of the stack, and then pushes\n     * the new FocusTrap onto the stack.\n     * @param {?} focusTrap\n     * @return {?}\n     */\n    register(focusTrap) {\n        // Dedupe focusTraps that register multiple times.\n        this._focusTrapStack = this._focusTrapStack.filter((/**\n         * @param {?} ft\n         * @return {?}\n         */\n        (ft) => ft !== focusTrap));\n        /** @type {?} */\n        let stack = this._focusTrapStack;\n        if (stack.length) {\n            stack[stack.length - 1]._disable();\n        }\n        stack.push(focusTrap);\n        focusTrap._enable();\n    }\n    /**\n     * Removes the FocusTrap from the stack, and activates the\n     * FocusTrap that is the new top of the stack.\n     * @param {?} focusTrap\n     * @return {?}\n     */\n    deregister(focusTrap) {\n        focusTrap._disable();\n        /** @type {?} */\n        const stack = this._focusTrapStack;\n        /** @type {?} */\n        const i = stack.indexOf(focusTrap);\n        if (i !== -1) {\n            stack.splice(i, 1);\n            if (stack.length) {\n                stack[stack.length - 1]._enable();\n            }\n        }\n    }\n}\nFocusTrapManager.ɵfac = function FocusTrapManager_Factory(t) { return new (t || FocusTrapManager)(); };\n/** @nocollapse */ FocusTrapManager.ɵprov = ɵɵdefineInjectable({ factory: function FocusTrapManager_Factory() { return new FocusTrapManager(); }, token: FocusTrapManager, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FocusTrapManager, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusTrapManager.prototype._focusTrapStack;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-trap/configurable-focus-trap-factory.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Factory that allows easy instantiation of configurable focus traps.\n */\nclass ConfigurableFocusTrapFactory {\n    /**\n     * @param {?} _checker\n     * @param {?} _ngZone\n     * @param {?} _focusTrapManager\n     * @param {?} _document\n     * @param {?=} _inertStrategy\n     */\n    constructor(_checker, _ngZone, _focusTrapManager, _document, _inertStrategy) {\n        this._checker = _checker;\n        this._ngZone = _ngZone;\n        this._focusTrapManager = _focusTrapManager;\n        this._document = _document;\n        // TODO split up the strategies into different modules, similar to DateAdapter.\n        this._inertStrategy = _inertStrategy || new EventListenerFocusTrapInertStrategy();\n    }\n    /**\n     * @param {?} element\n     * @param {?=} config\n     * @return {?}\n     */\n    create(element, config = new ConfigurableFocusTrapConfig()) {\n        /** @type {?} */\n        let configObject;\n        if (typeof config === 'boolean') {\n            configObject = new ConfigurableFocusTrapConfig();\n            configObject.defer = config;\n        }\n        else {\n            configObject = config;\n        }\n        return new ConfigurableFocusTrap(element, this._checker, this._ngZone, this._document, this._focusTrapManager, this._inertStrategy, configObject);\n    }\n}\nConfigurableFocusTrapFactory.ɵfac = function ConfigurableFocusTrapFactory_Factory(t) { return new (t || ConfigurableFocusTrapFactory)(ɵngcc0.ɵɵinject(InteractivityChecker), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(FocusTrapManager), ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(FOCUS_TRAP_INERT_STRATEGY, 8)); };\n/** @nocollapse */\nConfigurableFocusTrapFactory.ctorParameters = () => [\n    { type: InteractivityChecker },\n    { type: NgZone },\n    { type: FocusTrapManager },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [FOCUS_TRAP_INERT_STRATEGY,] }] }\n];\n/** @nocollapse */ ConfigurableFocusTrapFactory.ɵprov = ɵɵdefineInjectable({ factory: function ConfigurableFocusTrapFactory_Factory() { return new ConfigurableFocusTrapFactory(ɵɵinject(InteractivityChecker), ɵɵinject(NgZone), ɵɵinject(FocusTrapManager), ɵɵinject(DOCUMENT), ɵɵinject(FOCUS_TRAP_INERT_STRATEGY, 8)); }, token: ConfigurableFocusTrapFactory, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ConfigurableFocusTrapFactory, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: InteractivityChecker }, { type: ɵngcc0.NgZone }, { type: FocusTrapManager }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [FOCUS_TRAP_INERT_STRATEGY]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ConfigurableFocusTrapFactory.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    ConfigurableFocusTrapFactory.prototype._inertStrategy;\n    /**\n     * @type {?}\n     * @private\n     */\n    ConfigurableFocusTrapFactory.prototype._checker;\n    /**\n     * @type {?}\n     * @private\n     */\n    ConfigurableFocusTrapFactory.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    ConfigurableFocusTrapFactory.prototype._focusTrapManager;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/live-announcer/live-announcer-tokens.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst LIVE_ANNOUNCER_ELEMENT_TOKEN = new InjectionToken('liveAnnouncerElement', {\n    providedIn: 'root',\n    factory: LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY,\n});\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY() {\n    return null;\n}\n/**\n * Object that can be used to configure the default options for the LiveAnnouncer.\n * @record\n */\nfunction LiveAnnouncerDefaultOptions() { }\nif (false) {\n    /**\n     * Default politeness for the announcements.\n     * @type {?|undefined}\n     */\n    LiveAnnouncerDefaultOptions.prototype.politeness;\n    /**\n     * Default duration for the announcement messages.\n     * @type {?|undefined}\n     */\n    LiveAnnouncerDefaultOptions.prototype.duration;\n}\n/**\n * Injection token that can be used to configure the default options for the LiveAnnouncer.\n * @type {?}\n */\nconst LIVE_ANNOUNCER_DEFAULT_OPTIONS = new InjectionToken('LIVE_ANNOUNCER_DEFAULT_OPTIONS');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/live-announcer/live-announcer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass LiveAnnouncer {\n    /**\n     * @param {?} elementToken\n     * @param {?} _ngZone\n     * @param {?} _document\n     * @param {?=} _defaultOptions\n     */\n    constructor(elementToken, _ngZone, _document, _defaultOptions) {\n        this._ngZone = _ngZone;\n        this._defaultOptions = _defaultOptions;\n        // We inject the live element and document as `any` because the constructor signature cannot\n        // reference browser globals (HTMLElement, Document) on non-browser environments, since having\n        // a class decorator causes TypeScript to preserve the constructor signature types.\n        this._document = _document;\n        this._liveElement = elementToken || this._createLiveElement();\n    }\n    /**\n     * @param {?} message\n     * @param {...?} args\n     * @return {?}\n     */\n    announce(message, ...args) {\n        /** @type {?} */\n        const defaultOptions = this._defaultOptions;\n        /** @type {?} */\n        let politeness;\n        /** @type {?} */\n        let duration;\n        if (args.length === 1 && typeof args[0] === 'number') {\n            duration = args[0];\n        }\n        else {\n            [politeness, duration] = args;\n        }\n        this.clear();\n        clearTimeout(this._previousTimeout);\n        if (!politeness) {\n            politeness =\n                (defaultOptions && defaultOptions.politeness) ? defaultOptions.politeness : 'polite';\n        }\n        if (duration == null && defaultOptions) {\n            duration = defaultOptions.duration;\n        }\n        // TODO: ensure changing the politeness works on all environments we support.\n        this._liveElement.setAttribute('aria-live', politeness);\n        // This 100ms timeout is necessary for some browser + screen-reader combinations:\n        // - Both JAWS and NVDA over IE11 will not announce anything without a non-zero timeout.\n        // - With Chrome and IE11 with NVDA or JAWS, a repeated (identical) message won't be read a\n        //   second time without clearing and then using a non-zero delay.\n        // (using JAWS 17 at time of this writing).\n        return this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            return new Promise((/**\n             * @param {?} resolve\n             * @return {?}\n             */\n            resolve => {\n                clearTimeout(this._previousTimeout);\n                this._previousTimeout = setTimeout((/**\n                 * @return {?}\n                 */\n                () => {\n                    this._liveElement.textContent = message;\n                    resolve();\n                    if (typeof duration === 'number') {\n                        this._previousTimeout = setTimeout((/**\n                         * @return {?}\n                         */\n                        () => this.clear()), duration);\n                    }\n                }), 100);\n            }));\n        }));\n    }\n    /**\n     * Clears the current text from the announcer element. Can be used to prevent\n     * screen readers from reading the text out again while the user is going\n     * through the page landmarks.\n     * @return {?}\n     */\n    clear() {\n        if (this._liveElement) {\n            this._liveElement.textContent = '';\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        clearTimeout(this._previousTimeout);\n        if (this._liveElement && this._liveElement.parentNode) {\n            this._liveElement.parentNode.removeChild(this._liveElement);\n            this._liveElement = (/** @type {?} */ (null));\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _createLiveElement() {\n        /** @type {?} */\n        const elementClass = 'cdk-live-announcer-element';\n        /** @type {?} */\n        const previousElements = this._document.getElementsByClassName(elementClass);\n        /** @type {?} */\n        const liveEl = this._document.createElement('div');\n        // Remove any old containers. This can happen when coming in from a server-side-rendered page.\n        for (let i = 0; i < previousElements.length; i++) {\n            (/** @type {?} */ (previousElements[i].parentNode)).removeChild(previousElements[i]);\n        }\n        liveEl.classList.add(elementClass);\n        liveEl.classList.add('cdk-visually-hidden');\n        liveEl.setAttribute('aria-atomic', 'true');\n        liveEl.setAttribute('aria-live', 'polite');\n        this._document.body.appendChild(liveEl);\n        return liveEl;\n    }\n}\nLiveAnnouncer.ɵfac = function LiveAnnouncer_Factory(t) { return new (t || LiveAnnouncer)(ɵngcc0.ɵɵinject(LIVE_ANNOUNCER_ELEMENT_TOKEN, 8), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(LIVE_ANNOUNCER_DEFAULT_OPTIONS, 8)); };\n/** @nocollapse */\nLiveAnnouncer.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [LIVE_ANNOUNCER_ELEMENT_TOKEN,] }] },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [LIVE_ANNOUNCER_DEFAULT_OPTIONS,] }] }\n];\n/** @nocollapse */ LiveAnnouncer.ɵprov = ɵɵdefineInjectable({ factory: function LiveAnnouncer_Factory() { return new LiveAnnouncer(ɵɵinject(LIVE_ANNOUNCER_ELEMENT_TOKEN, 8), ɵɵinject(NgZone), ɵɵinject(DOCUMENT), ɵɵinject(LIVE_ANNOUNCER_DEFAULT_OPTIONS, 8)); }, token: LiveAnnouncer, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(LiveAnnouncer, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [LIVE_ANNOUNCER_ELEMENT_TOKEN]\n            }] }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [LIVE_ANNOUNCER_DEFAULT_OPTIONS]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    LiveAnnouncer.prototype._liveElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    LiveAnnouncer.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    LiveAnnouncer.prototype._previousTimeout;\n    /**\n     * @type {?}\n     * @private\n     */\n    LiveAnnouncer.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    LiveAnnouncer.prototype._defaultOptions;\n}\n/**\n * A directive that works similarly to aria-live, but uses the LiveAnnouncer to ensure compatibility\n * with a wider range of browsers and screen readers.\n */\nclass CdkAriaLive {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _liveAnnouncer\n     * @param {?} _contentObserver\n     * @param {?} _ngZone\n     */\n    constructor(_elementRef, _liveAnnouncer, _contentObserver, _ngZone) {\n        this._elementRef = _elementRef;\n        this._liveAnnouncer = _liveAnnouncer;\n        this._contentObserver = _contentObserver;\n        this._ngZone = _ngZone;\n        this._politeness = 'off';\n    }\n    /**\n     * The aria-live politeness level to use when announcing messages.\n     * @return {?}\n     */\n    get politeness() { return this._politeness; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set politeness(value) {\n        this._politeness = value === 'polite' || value === 'assertive' ? value : 'off';\n        if (this._politeness === 'off') {\n            if (this._subscription) {\n                this._subscription.unsubscribe();\n                this._subscription = null;\n            }\n        }\n        else if (!this._subscription) {\n            this._subscription = this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                return this._contentObserver\n                    .observe(this._elementRef)\n                    .subscribe((/**\n                 * @return {?}\n                 */\n                () => {\n                    // Note that we use textContent here, rather than innerText, in order to avoid a reflow.\n                    /** @type {?} */\n                    const elementText = this._elementRef.nativeElement.textContent;\n                    // The `MutationObserver` fires also for attribute\n                    // changes which we don't want to announce.\n                    if (elementText !== this._previousAnnouncedText) {\n                        this._liveAnnouncer.announce(elementText, this._politeness);\n                        this._previousAnnouncedText = elementText;\n                    }\n                }));\n            }));\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._subscription) {\n            this._subscription.unsubscribe();\n        }\n    }\n}\nCdkAriaLive.ɵfac = function CdkAriaLive_Factory(t) { return new (t || CdkAriaLive)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(LiveAnnouncer), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.ContentObserver), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone)); };\nCdkAriaLive.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkAriaLive, selectors: [[\"\", \"cdkAriaLive\", \"\"]], inputs: { politeness: [\"cdkAriaLive\", \"politeness\"] }, exportAs: [\"cdkAriaLive\"] });\n/** @nocollapse */\nCdkAriaLive.ctorParameters = () => [\n    { type: ElementRef },\n    { type: LiveAnnouncer },\n    { type: ContentObserver },\n    { type: NgZone }\n];\nCdkAriaLive.propDecorators = {\n    politeness: [{ type: Input, args: ['cdkAriaLive',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkAriaLive, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkAriaLive]',\n                exportAs: 'cdkAriaLive'\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: LiveAnnouncer }, { type: ɵngcc2.ContentObserver }, { type: ɵngcc0.NgZone }]; }, { politeness: [{\n            type: Input,\n            args: ['cdkAriaLive']\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkAriaLive.prototype._politeness;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkAriaLive.prototype._previousAnnouncedText;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkAriaLive.prototype._subscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkAriaLive.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkAriaLive.prototype._liveAnnouncer;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkAriaLive.prototype._contentObserver;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkAriaLive.prototype._ngZone;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/fake-mousedown.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Screenreaders will often fire fake mousedown events when a focusable element\n * is activated using the keyboard. We can typically distinguish between these faked\n * mousedown events and real mousedown events using the \"buttons\" property. While\n * real mousedowns will indicate the mouse button that was pressed (e.g. \"1\" for\n * the left mouse button), faked mousedowns will usually set the property value to 0.\n * @param {?} event\n * @return {?}\n */\nfunction isFakeMousedownFromScreenReader(event) {\n    return event.buttons === 0;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/focus-monitor/focus-monitor.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// This is the value used by AngularJS Material. Through trial and error (on iPhone 6S) they found\n// that a value of around 650ms seems appropriate.\n/** @type {?} */\nconst TOUCH_BUFFER_MS = 650;\n/**\n * Corresponds to the options that can be passed to the native `focus` event.\n * via https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/focus\n * @record\n */\nfunction FocusOptions() { }\nif (false) {\n    /**\n     * Whether the browser should scroll to the element when it is focused.\n     * @type {?|undefined}\n     */\n    FocusOptions.prototype.preventScroll;\n}\n/** @enum {number} */\nconst FocusMonitorDetectionMode = {\n    /**\n     * Any mousedown, keydown, or touchstart event that happened in the previous\n     * tick or the current tick will be used to assign a focus event's origin (to\n     * either mouse, keyboard, or touch). This is the default option.\n     */\n    IMMEDIATE: 0,\n    /**\n     * A focus event's origin is always attributed to the last corresponding\n     * mousedown, keydown, or touchstart event, no matter how long ago it occured.\n     */\n    EVENTUAL: 1,\n};\n/**\n * Injectable service-level options for FocusMonitor.\n * @record\n */\nfunction FocusMonitorOptions() { }\nif (false) {\n    /** @type {?|undefined} */\n    FocusMonitorOptions.prototype.detectionMode;\n}\n/**\n * InjectionToken for FocusMonitorOptions.\n * @type {?}\n */\nconst FOCUS_MONITOR_DEFAULT_OPTIONS = new InjectionToken('cdk-focus-monitor-default-options');\n/**\n * Event listener options that enable capturing and also\n * mark the listener as passive if the browser supports it.\n * @type {?}\n */\nconst captureEventListenerOptions = normalizePassiveListenerOptions({\n    passive: true,\n    capture: true\n});\n/**\n * Monitors mouse and keyboard events to determine the cause of focus events.\n */\nclass FocusMonitor {\n    /**\n     * @param {?} _ngZone\n     * @param {?} _platform\n     * @param {?} document\n     * @param {?} options\n     */\n    constructor(_ngZone, _platform, \n    /** @breaking-change 11.0.0 make document required */\n    document, options) {\n        this._ngZone = _ngZone;\n        this._platform = _platform;\n        /**\n         * The focus origin that the next focus event is a result of.\n         */\n        this._origin = null;\n        /**\n         * Whether the window has just been focused.\n         */\n        this._windowFocused = false;\n        /**\n         * Map of elements being monitored to their info.\n         */\n        this._elementInfo = new Map();\n        /**\n         * The number of elements currently being monitored.\n         */\n        this._monitoredElementCount = 0;\n        /**\n         * Keeps track of the root nodes to which we've currently bound a focus/blur handler,\n         * as well as the number of monitored elements that they contain. We have to treat focus/blur\n         * handlers differently from the rest of the events, because the browser won't emit events\n         * to the document when focus moves inside of a shadow root.\n         */\n        this._rootNodeFocusListenerCount = new Map();\n        /**\n         * Event listener for `keydown` events on the document.\n         * Needs to be an arrow function in order to preserve the context when it gets bound.\n         */\n        this._documentKeydownListener = (/**\n         * @return {?}\n         */\n        () => {\n            // On keydown record the origin and clear any touch event that may be in progress.\n            this._lastTouchTarget = null;\n            this._setOriginForCurrentEventQueue('keyboard');\n        });\n        /**\n         * Event listener for `mousedown` events on the document.\n         * Needs to be an arrow function in order to preserve the context when it gets bound.\n         */\n        this._documentMousedownListener = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            // On mousedown record the origin only if there is not touch\n            // target, since a mousedown can happen as a result of a touch event.\n            if (!this._lastTouchTarget) {\n                // In some cases screen readers fire fake `mousedown` events instead of `keydown`.\n                // Resolve the focus source to `keyboard` if we detect one of them.\n                /** @type {?} */\n                const source = isFakeMousedownFromScreenReader(event) ? 'keyboard' : 'mouse';\n                this._setOriginForCurrentEventQueue(source);\n            }\n        });\n        /**\n         * Event listener for `touchstart` events on the document.\n         * Needs to be an arrow function in order to preserve the context when it gets bound.\n         */\n        this._documentTouchstartListener = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            // When the touchstart event fires the focus event is not yet in the event queue. This means\n            // we can't rely on the trick used above (setting timeout of 1ms). Instead we wait 650ms to\n            // see if a focus happens.\n            if (this._touchTimeoutId != null) {\n                clearTimeout(this._touchTimeoutId);\n            }\n            this._lastTouchTarget = getTarget(event);\n            this._touchTimeoutId = setTimeout((/**\n             * @return {?}\n             */\n            () => this._lastTouchTarget = null), TOUCH_BUFFER_MS);\n        });\n        /**\n         * Event listener for `focus` events on the window.\n         * Needs to be an arrow function in order to preserve the context when it gets bound.\n         */\n        this._windowFocusListener = (/**\n         * @return {?}\n         */\n        () => {\n            // Make a note of when the window regains focus, so we can\n            // restore the origin info for the focused element.\n            this._windowFocused = true;\n            this._windowFocusTimeoutId = setTimeout((/**\n             * @return {?}\n             */\n            () => this._windowFocused = false));\n        });\n        /**\n         * Event listener for `focus` and 'blur' events on the document.\n         * Needs to be an arrow function in order to preserve the context when it gets bound.\n         */\n        this._rootNodeFocusAndBlurListener = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            /** @type {?} */\n            const target = getTarget(event);\n            /** @type {?} */\n            const handler = event.type === 'focus' ? this._onFocus : this._onBlur;\n            // We need to walk up the ancestor chain in order to support `checkChildren`.\n            for (let element = target; element; element = element.parentElement) {\n                handler.call(this, (/** @type {?} */ (event)), element);\n            }\n        });\n        this._document = document;\n        this._detectionMode = (options === null || options === void 0 ? void 0 : options.detectionMode) || 0 /* IMMEDIATE */;\n    }\n    /**\n     * @param {?} element\n     * @param {?=} checkChildren\n     * @return {?}\n     */\n    monitor(element, checkChildren = false) {\n        // Do nothing if we're not on the browser platform.\n        if (!this._platform.isBrowser) {\n            return of(null);\n        }\n        /** @type {?} */\n        const nativeElement = coerceElement(element);\n        // If the element is inside the shadow DOM, we need to bind our focus/blur listeners to\n        // the shadow root, rather than the `document`, because the browser won't emit focus events\n        // to the `document`, if focus is moving within the same shadow root.\n        /** @type {?} */\n        const rootNode = ((/** @type {?} */ (_getShadowRoot(nativeElement)))) || this._getDocument();\n        /** @type {?} */\n        const cachedInfo = this._elementInfo.get(nativeElement);\n        // Check if we're already monitoring this element.\n        if (cachedInfo) {\n            if (checkChildren) {\n                // TODO(COMP-318): this can be problematic, because it'll turn all non-checkChildren\n                // observers into ones that behave as if `checkChildren` was turned on. We need a more\n                // robust solution.\n                cachedInfo.checkChildren = true;\n            }\n            return cachedInfo.subject.asObservable();\n        }\n        // Create monitored element info.\n        /** @type {?} */\n        const info = {\n            checkChildren: checkChildren,\n            subject: new Subject(),\n            rootNode\n        };\n        this._elementInfo.set(nativeElement, info);\n        this._registerGlobalListeners(info);\n        return info.subject.asObservable();\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    stopMonitoring(element) {\n        /** @type {?} */\n        const nativeElement = coerceElement(element);\n        /** @type {?} */\n        const elementInfo = this._elementInfo.get(nativeElement);\n        if (elementInfo) {\n            elementInfo.subject.complete();\n            this._setClasses(nativeElement);\n            this._elementInfo.delete(nativeElement);\n            this._removeGlobalListeners(elementInfo);\n        }\n    }\n    /**\n     * @param {?} element\n     * @param {?} origin\n     * @param {?=} options\n     * @return {?}\n     */\n    focusVia(element, origin, options) {\n        /** @type {?} */\n        const nativeElement = coerceElement(element);\n        this._setOriginForCurrentEventQueue(origin);\n        // `focus` isn't available on the server\n        if (typeof nativeElement.focus === 'function') {\n            // Cast the element to `any`, because the TS typings don't have the `options` parameter yet.\n            ((/** @type {?} */ (nativeElement))).focus(options);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._elementInfo.forEach((/**\n         * @param {?} _info\n         * @param {?} element\n         * @return {?}\n         */\n        (_info, element) => this.stopMonitoring(element)));\n    }\n    /**\n     * Access injected document if available or fallback to global document reference\n     * @private\n     * @return {?}\n     */\n    _getDocument() {\n        return this._document || document;\n    }\n    /**\n     * Use defaultView of injected document if available or fallback to global window reference\n     * @private\n     * @return {?}\n     */\n    _getWindow() {\n        /** @type {?} */\n        const doc = this._getDocument();\n        return doc.defaultView || window;\n    }\n    /**\n     * @private\n     * @param {?} element\n     * @param {?} className\n     * @param {?} shouldSet\n     * @return {?}\n     */\n    _toggleClass(element, className, shouldSet) {\n        if (shouldSet) {\n            element.classList.add(className);\n        }\n        else {\n            element.classList.remove(className);\n        }\n    }\n    /**\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _getFocusOrigin(event) {\n        // If we couldn't detect a cause for the focus event, it's due to one of three reasons:\n        // 1) The window has just regained focus, in which case we want to restore the focused state of\n        //    the element from before the window blurred.\n        // 2) It was caused by a touch event, in which case we mark the origin as 'touch'.\n        // 3) The element was programmatically focused, in which case we should mark the origin as\n        //    'program'.\n        if (this._origin) {\n            return this._origin;\n        }\n        if (this._windowFocused && this._lastFocusOrigin) {\n            return this._lastFocusOrigin;\n        }\n        else if (this._wasCausedByTouch(event)) {\n            return 'touch';\n        }\n        else {\n            return 'program';\n        }\n    }\n    /**\n     * Sets the focus classes on the element based on the given focus origin.\n     * @private\n     * @param {?} element The element to update the classes on.\n     * @param {?=} origin The focus origin.\n     * @return {?}\n     */\n    _setClasses(element, origin) {\n        this._toggleClass(element, 'cdk-focused', !!origin);\n        this._toggleClass(element, 'cdk-touch-focused', origin === 'touch');\n        this._toggleClass(element, 'cdk-keyboard-focused', origin === 'keyboard');\n        this._toggleClass(element, 'cdk-mouse-focused', origin === 'mouse');\n        this._toggleClass(element, 'cdk-program-focused', origin === 'program');\n    }\n    /**\n     * Sets the origin and schedules an async function to clear it at the end of the event queue.\n     * If the detection mode is 'eventual', the origin is never cleared.\n     * @private\n     * @param {?} origin The origin to set.\n     * @return {?}\n     */\n    _setOriginForCurrentEventQueue(origin) {\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            this._origin = origin;\n            if (this._detectionMode === 0 /* IMMEDIATE */) {\n                // Sometimes the focus origin won't be valid in Firefox because Firefox seems to focus *one*\n                // tick after the interaction event fired. To ensure the focus origin is always correct,\n                // the focus origin will be determined at the beginning of the next tick.\n                this._originTimeoutId = setTimeout((/**\n                 * @return {?}\n                 */\n                () => this._origin = null), 1);\n            }\n        }));\n    }\n    /**\n     * Checks whether the given focus event was caused by a touchstart event.\n     * @private\n     * @param {?} event The focus event to check.\n     * @return {?} Whether the event was caused by a touch.\n     */\n    _wasCausedByTouch(event) {\n        // Note(mmalerba): This implementation is not quite perfect, there is a small edge case.\n        // Consider the following dom structure:\n        //\n        // <div #parent tabindex=\"0\" cdkFocusClasses>\n        //   <div #child (click)=\"#parent.focus()\"></div>\n        // </div>\n        //\n        // If the user touches the #child element and the #parent is programmatically focused as a\n        // result, this code will still consider it to have been caused by the touch event and will\n        // apply the cdk-touch-focused class rather than the cdk-program-focused class. This is a\n        // relatively small edge-case that can be worked around by using\n        // focusVia(parentEl, 'program') to focus the parent element.\n        //\n        // If we decide that we absolutely must handle this case correctly, we can do so by listening\n        // for the first focus event after the touchstart, and then the first blur event after that\n        // focus event. When that blur event fires we know that whatever follows is not a result of the\n        // touchstart.\n        /** @type {?} */\n        const focusTarget = getTarget(event);\n        return this._lastTouchTarget instanceof Node && focusTarget instanceof Node &&\n            (focusTarget === this._lastTouchTarget || focusTarget.contains(this._lastTouchTarget));\n    }\n    /**\n     * Handles focus events on a registered element.\n     * @private\n     * @param {?} event The focus event.\n     * @param {?} element The monitored element.\n     * @return {?}\n     */\n    _onFocus(event, element) {\n        // NOTE(mmalerba): We currently set the classes based on the focus origin of the most recent\n        // focus event affecting the monitored element. If we want to use the origin of the first event\n        // instead we should check for the cdk-focused class here and return if the element already has\n        // it. (This only matters for elements that have includesChildren = true).\n        // NOTE(mmalerba): We currently set the classes based on the focus origin of the most recent\n        // focus event affecting the monitored element. If we want to use the origin of the first event\n        // instead we should check for the cdk-focused class here and return if the element already has\n        // it. (This only matters for elements that have includesChildren = true).\n        // If we are not counting child-element-focus as focused, make sure that the event target is the\n        // monitored element itself.\n        /** @type {?} */\n        const elementInfo = this._elementInfo.get(element);\n        if (!elementInfo || (!elementInfo.checkChildren && element !== getTarget(event))) {\n            return;\n        }\n        /** @type {?} */\n        const origin = this._getFocusOrigin(event);\n        this._setClasses(element, origin);\n        this._emitOrigin(elementInfo.subject, origin);\n        this._lastFocusOrigin = origin;\n    }\n    /**\n     * Handles blur events on a registered element.\n     * @param {?} event The blur event.\n     * @param {?} element The monitored element.\n     * @return {?}\n     */\n    _onBlur(event, element) {\n        // If we are counting child-element-focus as focused, make sure that we aren't just blurring in\n        // order to focus another child of the monitored element.\n        /** @type {?} */\n        const elementInfo = this._elementInfo.get(element);\n        if (!elementInfo || (elementInfo.checkChildren && event.relatedTarget instanceof Node &&\n            element.contains(event.relatedTarget))) {\n            return;\n        }\n        this._setClasses(element);\n        this._emitOrigin(elementInfo.subject, null);\n    }\n    /**\n     * @private\n     * @param {?} subject\n     * @param {?} origin\n     * @return {?}\n     */\n    _emitOrigin(subject, origin) {\n        this._ngZone.run((/**\n         * @return {?}\n         */\n        () => subject.next(origin)));\n    }\n    /**\n     * @private\n     * @param {?} elementInfo\n     * @return {?}\n     */\n    _registerGlobalListeners(elementInfo) {\n        if (!this._platform.isBrowser) {\n            return;\n        }\n        /** @type {?} */\n        const rootNode = elementInfo.rootNode;\n        /** @type {?} */\n        const rootNodeFocusListeners = this._rootNodeFocusListenerCount.get(rootNode) || 0;\n        if (!rootNodeFocusListeners) {\n            this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                rootNode.addEventListener('focus', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n                rootNode.addEventListener('blur', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n            }));\n        }\n        this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners + 1);\n        // Register global listeners when first element is monitored.\n        if (++this._monitoredElementCount === 1) {\n            // Note: we listen to events in the capture phase so we\n            // can detect them even if the user stops propagation.\n            this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                /** @type {?} */\n                const document = this._getDocument();\n                /** @type {?} */\n                const window = this._getWindow();\n                document.addEventListener('keydown', this._documentKeydownListener, captureEventListenerOptions);\n                document.addEventListener('mousedown', this._documentMousedownListener, captureEventListenerOptions);\n                document.addEventListener('touchstart', this._documentTouchstartListener, captureEventListenerOptions);\n                window.addEventListener('focus', this._windowFocusListener);\n            }));\n        }\n    }\n    /**\n     * @private\n     * @param {?} elementInfo\n     * @return {?}\n     */\n    _removeGlobalListeners(elementInfo) {\n        /** @type {?} */\n        const rootNode = elementInfo.rootNode;\n        if (this._rootNodeFocusListenerCount.has(rootNode)) {\n            /** @type {?} */\n            const rootNodeFocusListeners = (/** @type {?} */ (this._rootNodeFocusListenerCount.get(rootNode)));\n            if (rootNodeFocusListeners > 1) {\n                this._rootNodeFocusListenerCount.set(rootNode, rootNodeFocusListeners - 1);\n            }\n            else {\n                rootNode.removeEventListener('focus', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n                rootNode.removeEventListener('blur', this._rootNodeFocusAndBlurListener, captureEventListenerOptions);\n                this._rootNodeFocusListenerCount.delete(rootNode);\n            }\n        }\n        // Unregister global listeners when last element is unmonitored.\n        if (!--this._monitoredElementCount) {\n            /** @type {?} */\n            const document = this._getDocument();\n            /** @type {?} */\n            const window = this._getWindow();\n            document.removeEventListener('keydown', this._documentKeydownListener, captureEventListenerOptions);\n            document.removeEventListener('mousedown', this._documentMousedownListener, captureEventListenerOptions);\n            document.removeEventListener('touchstart', this._documentTouchstartListener, captureEventListenerOptions);\n            window.removeEventListener('focus', this._windowFocusListener);\n            // Clear timeouts for all potentially pending timeouts to prevent the leaks.\n            clearTimeout(this._windowFocusTimeoutId);\n            clearTimeout(this._touchTimeoutId);\n            clearTimeout(this._originTimeoutId);\n        }\n    }\n}\nFocusMonitor.ɵfac = function FocusMonitor_Factory(t) { return new (t || FocusMonitor)(ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(ɵngcc1.Platform), ɵngcc0.ɵɵinject(DOCUMENT, 8), ɵngcc0.ɵɵinject(FOCUS_MONITOR_DEFAULT_OPTIONS, 8)); };\n/** @nocollapse */\nFocusMonitor.ctorParameters = () => [\n    { type: NgZone },\n    { type: Platform },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [FOCUS_MONITOR_DEFAULT_OPTIONS,] }] }\n];\n/** @nocollapse */ FocusMonitor.ɵprov = ɵɵdefineInjectable({ factory: function FocusMonitor_Factory() { return new FocusMonitor(ɵɵinject(NgZone), ɵɵinject(Platform), ɵɵinject(DOCUMENT, 8), ɵɵinject(FOCUS_MONITOR_DEFAULT_OPTIONS, 8)); }, token: FocusMonitor, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(FocusMonitor, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc0.NgZone }, { type: ɵngcc1.Platform }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [FOCUS_MONITOR_DEFAULT_OPTIONS]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * The focus origin that the next focus event is a result of.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._origin;\n    /**\n     * The FocusOrigin of the last focus event tracked by the FocusMonitor.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._lastFocusOrigin;\n    /**\n     * Whether the window has just been focused.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._windowFocused;\n    /**\n     * The target of the last touch event.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._lastTouchTarget;\n    /**\n     * The timeout id of the touch timeout, used to cancel timeout later.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._touchTimeoutId;\n    /**\n     * The timeout id of the window focus timeout.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._windowFocusTimeoutId;\n    /**\n     * The timeout id of the origin clearing timeout.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._originTimeoutId;\n    /**\n     * Map of elements being monitored to their info.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._elementInfo;\n    /**\n     * The number of elements currently being monitored.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._monitoredElementCount;\n    /**\n     * Keeps track of the root nodes to which we've currently bound a focus/blur handler,\n     * as well as the number of monitored elements that they contain. We have to treat focus/blur\n     * handlers differently from the rest of the events, because the browser won't emit events\n     * to the document when focus moves inside of a shadow root.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._rootNodeFocusListenerCount;\n    /**\n     * The specified detection mode, used for attributing the origin of a focus\n     * event.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._detectionMode;\n    /**\n     * Event listener for `keydown` events on the document.\n     * Needs to be an arrow function in order to preserve the context when it gets bound.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._documentKeydownListener;\n    /**\n     * Event listener for `mousedown` events on the document.\n     * Needs to be an arrow function in order to preserve the context when it gets bound.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._documentMousedownListener;\n    /**\n     * Event listener for `touchstart` events on the document.\n     * Needs to be an arrow function in order to preserve the context when it gets bound.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._documentTouchstartListener;\n    /**\n     * Event listener for `focus` events on the window.\n     * Needs to be an arrow function in order to preserve the context when it gets bound.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._windowFocusListener;\n    /**\n     * Used to reference correct document/window\n     * @type {?}\n     * @protected\n     */\n    FocusMonitor.prototype._document;\n    /**\n     * Event listener for `focus` and 'blur' events on the document.\n     * Needs to be an arrow function in order to preserve the context when it gets bound.\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._rootNodeFocusAndBlurListener;\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    FocusMonitor.prototype._platform;\n}\n/**\n * Gets the target of an event, accounting for Shadow DOM.\n * @param {?} event\n * @return {?}\n */\nfunction getTarget(event) {\n    // If an event is bound outside the Shadow DOM, the `event.target` will\n    // point to the shadow root so we have to use `composedPath` instead.\n    return (/** @type {?} */ ((event.composedPath ? event.composedPath()[0] : event.target)));\n}\n/**\n * Directive that determines how a particular element was focused (via keyboard, mouse, touch, or\n * programmatically) and adds corresponding classes to the element.\n *\n * There are two variants of this directive:\n * 1) cdkMonitorElementFocus: does not consider an element to be focused if one of its children is\n *    focused.\n * 2) cdkMonitorSubtreeFocus: considers an element focused if it or any of its children are focused.\n */\nclass CdkMonitorFocus {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _focusMonitor\n     */\n    constructor(_elementRef, _focusMonitor) {\n        this._elementRef = _elementRef;\n        this._focusMonitor = _focusMonitor;\n        this.cdkFocusChange = new EventEmitter();\n        this._monitorSubscription = this._focusMonitor.monitor(this._elementRef, this._elementRef.nativeElement.hasAttribute('cdkMonitorSubtreeFocus'))\n            .subscribe((/**\n         * @param {?} origin\n         * @return {?}\n         */\n        origin => this.cdkFocusChange.emit(origin)));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._focusMonitor.stopMonitoring(this._elementRef);\n        this._monitorSubscription.unsubscribe();\n    }\n}\nCdkMonitorFocus.ɵfac = function CdkMonitorFocus_Factory(t) { return new (t || CdkMonitorFocus)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(FocusMonitor)); };\nCdkMonitorFocus.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkMonitorFocus, selectors: [[\"\", \"cdkMonitorElementFocus\", \"\"], [\"\", \"cdkMonitorSubtreeFocus\", \"\"]], outputs: { cdkFocusChange: \"cdkFocusChange\" } });\n/** @nocollapse */\nCdkMonitorFocus.ctorParameters = () => [\n    { type: ElementRef },\n    { type: FocusMonitor }\n];\nCdkMonitorFocus.propDecorators = {\n    cdkFocusChange: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkMonitorFocus, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkMonitorElementFocus], [cdkMonitorSubtreeFocus]'\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: FocusMonitor }]; }, { cdkFocusChange: [{\n            type: Output\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkMonitorFocus.prototype._monitorSubscription;\n    /** @type {?} */\n    CdkMonitorFocus.prototype.cdkFocusChange;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkMonitorFocus.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkMonitorFocus.prototype._focusMonitor;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/high-contrast-mode/high-contrast-mode-detector.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @enum {number} */\nconst HighContrastMode = {\n    NONE: 0,\n    BLACK_ON_WHITE: 1,\n    WHITE_ON_BLACK: 2,\n};\n/**\n * CSS class applied to the document body when in black-on-white high-contrast mode.\n * @type {?}\n */\nconst BLACK_ON_WHITE_CSS_CLASS = 'cdk-high-contrast-black-on-white';\n/**\n * CSS class applied to the document body when in white-on-black high-contrast mode.\n * @type {?}\n */\nconst WHITE_ON_BLACK_CSS_CLASS = 'cdk-high-contrast-white-on-black';\n/**\n * CSS class applied to the document body when in high-contrast mode.\n * @type {?}\n */\nconst HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS = 'cdk-high-contrast-active';\n/**\n * Service to determine whether the browser is currently in a high-contrast-mode environment.\n *\n * Microsoft Windows supports an accessibility feature called \"High Contrast Mode\". This mode\n * changes the appearance of all applications, including web applications, to dramatically increase\n * contrast.\n *\n * IE, Edge, and Firefox currently support this mode. Chrome does not support Windows High Contrast\n * Mode. This service does not detect high-contrast mode as added by the Chrome \"High Contrast\"\n * browser extension.\n */\nclass HighContrastModeDetector {\n    /**\n     * @param {?} _platform\n     * @param {?} document\n     */\n    constructor(_platform, document) {\n        this._platform = _platform;\n        this._document = document;\n    }\n    /**\n     * Gets the current high-contrast-mode for the page.\n     * @return {?}\n     */\n    getHighContrastMode() {\n        if (!this._platform.isBrowser) {\n            return 0 /* NONE */;\n        }\n        // Create a test element with an arbitrary background-color that is neither black nor\n        // white; high-contrast mode will coerce the color to either black or white. Also ensure that\n        // appending the test element to the DOM does not affect layout by absolutely positioning it\n        /** @type {?} */\n        const testElement = this._document.createElement('div');\n        testElement.style.backgroundColor = 'rgb(1,2,3)';\n        testElement.style.position = 'absolute';\n        this._document.body.appendChild(testElement);\n        // Get the computed style for the background color, collapsing spaces to normalize between\n        // browsers. Once we get this color, we no longer need the test element. Access the `window`\n        // via the document so we can fake it in tests. Note that we have extra null checks, because\n        // this logic will likely run during app bootstrap and throwing can break the entire app.\n        /** @type {?} */\n        const documentWindow = this._document.defaultView || window;\n        /** @type {?} */\n        const computedStyle = (documentWindow && documentWindow.getComputedStyle) ?\n            documentWindow.getComputedStyle(testElement) : null;\n        /** @type {?} */\n        const computedColor = (computedStyle && computedStyle.backgroundColor || '').replace(/ /g, '');\n        this._document.body.removeChild(testElement);\n        switch (computedColor) {\n            case 'rgb(0,0,0)': return 2 /* WHITE_ON_BLACK */;\n            case 'rgb(255,255,255)': return 1 /* BLACK_ON_WHITE */;\n        }\n        return 0 /* NONE */;\n    }\n    /**\n     * Applies CSS classes indicating high-contrast mode to document body (browser-only).\n     * @return {?}\n     */\n    _applyBodyHighContrastModeCssClasses() {\n        if (this._platform.isBrowser && this._document.body) {\n            /** @type {?} */\n            const bodyClasses = this._document.body.classList;\n            // IE11 doesn't support `classList` operations with multiple arguments\n            bodyClasses.remove(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n            bodyClasses.remove(BLACK_ON_WHITE_CSS_CLASS);\n            bodyClasses.remove(WHITE_ON_BLACK_CSS_CLASS);\n            /** @type {?} */\n            const mode = this.getHighContrastMode();\n            if (mode === 1 /* BLACK_ON_WHITE */) {\n                bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n                bodyClasses.add(BLACK_ON_WHITE_CSS_CLASS);\n            }\n            else if (mode === 2 /* WHITE_ON_BLACK */) {\n                bodyClasses.add(HIGH_CONTRAST_MODE_ACTIVE_CSS_CLASS);\n                bodyClasses.add(WHITE_ON_BLACK_CSS_CLASS);\n            }\n        }\n    }\n}\nHighContrastModeDetector.ɵfac = function HighContrastModeDetector_Factory(t) { return new (t || HighContrastModeDetector)(ɵngcc0.ɵɵinject(ɵngcc1.Platform), ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nHighContrastModeDetector.ctorParameters = () => [\n    { type: Platform },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ HighContrastModeDetector.ɵprov = ɵɵdefineInjectable({ factory: function HighContrastModeDetector_Factory() { return new HighContrastModeDetector(ɵɵinject(Platform), ɵɵinject(DOCUMENT)); }, token: HighContrastModeDetector, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HighContrastModeDetector, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc1.Platform }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HighContrastModeDetector.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    HighContrastModeDetector.prototype._platform;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/a11y-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass A11yModule {\n    /**\n     * @param {?} highContrastModeDetector\n     */\n    constructor(highContrastModeDetector) {\n        highContrastModeDetector._applyBodyHighContrastModeCssClasses();\n    }\n}\nA11yModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: A11yModule });\nA11yModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function A11yModule_Factory(t) { return new (t || A11yModule)(ɵngcc0.ɵɵinject(HighContrastModeDetector)); }, imports: [[PlatformModule, ObserversModule]] });\n/** @nocollapse */\nA11yModule.ctorParameters = () => [\n    { type: HighContrastModeDetector }\n];\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(A11yModule, { declarations: function () { return [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus]; }, imports: function () { return [PlatformModule, ObserversModule]; }, exports: function () { return [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(A11yModule, [{\n        type: NgModule,\n        args: [{\n                imports: [PlatformModule, ObserversModule],\n                declarations: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus],\n                exports: [CdkAriaLive, CdkTrapFocus, CdkMonitorFocus]\n            }]\n    }], function () { return [{ type: HighContrastModeDetector }]; }, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/a11y/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { A11yModule, ActiveDescendantKeyManager, AriaDescriber, CDK_DESCRIBEDBY_HOST_ATTRIBUTE, CDK_DESCRIBEDBY_ID_PREFIX, CdkAriaLive, CdkMonitorFocus, CdkTrapFocus, ConfigurableFocusTrap, ConfigurableFocusTrapFactory, EventListenerFocusTrapInertStrategy, FOCUS_MONITOR_DEFAULT_OPTIONS, FOCUS_TRAP_INERT_STRATEGY, FocusKeyManager, FocusMonitor, FocusTrap, FocusTrapFactory, HighContrastModeDetector, InteractivityChecker, LIVE_ANNOUNCER_DEFAULT_OPTIONS, LIVE_ANNOUNCER_ELEMENT_TOKEN, LIVE_ANNOUNCER_ELEMENT_TOKEN_FACTORY, ListKeyManager, LiveAnnouncer, MESSAGES_CONTAINER_ID, TOUCH_BUFFER_MS, isFakeMousedownFromScreenReader, FocusTrapManager as ɵangular_material_src_cdk_a11y_a11y_a, ConfigurableFocusTrapConfig as ɵangular_material_src_cdk_a11y_a11y_b };\n\n//# sourceMappingURL=a11y.js.map","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { ɵDomAdapter, ɵsetRootDomAdapter, ɵparseCookieValue, ɵgetDOM, DOCUMENT, ɵPLATFORM_BROWSER_ID, CommonModule } from '@angular/common';\nimport * as ɵngcc0 from '@angular/core';\nexport { ɵgetDOM } from '@angular/common';\nimport { ɵglobal, InjectionToken, ApplicationInitStatus, APP_INITIALIZER, Injector, setTestabilityGetter, ApplicationRef, NgZone, ɵgetDebugNodeR2, NgProbeToken, Optional, Injectable, Inject, ViewEncapsulation, APP_ID, RendererStyleFlags2, ɵConsole, NgModule, forwardRef, ɵɵdefineInjectable, ɵɵinject, SecurityContext, ɵallowSanitizationBypassAndThrow, ɵunwrapSafeValue, ɵgetSanitizationBypassType, ɵ_sanitizeUrl, ɵ_sanitizeStyle, ɵ_sanitizeHtml, ɵbypassSanitizationTrustHtml, ɵbypassSanitizationTrustStyle, ɵbypassSanitizationTrustScript, ɵbypassSanitizationTrustUrl, ɵbypassSanitizationTrustResourceUrl, INJECTOR, ErrorHandler, ɵsetDocument, PLATFORM_ID, PLATFORM_INITIALIZER, Sanitizer, createPlatformFactory, platformCore, ɵINJECTOR_SCOPE, RendererFactory2, Testability, ApplicationModule, SkipSelf, Version } from '@angular/core';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/generic_browser_adapter.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Provides DOM operations in any browser environment.\n *\n * \\@security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n * @abstract\n */\nclass GenericBrowserDomAdapter extends ɵDomAdapter {\n    constructor() {\n        super();\n    }\n    /**\n     * @return {?}\n     */\n    supportsDOMEvents() {\n        return true;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/browser_adapter.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nconst ɵ0 = /**\n * @return {?}\n */\n() => {\n    if (ɵglobal['Node']) {\n        return ɵglobal['Node'].prototype.contains || (/**\n         * @this {?}\n         * @param {?} node\n         * @return {?}\n         */\n        function (node) {\n            return !!(this.compareDocumentPosition(node) & 16);\n        });\n    }\n    return (/** @type {?} */ (undefined));\n};\n/** @type {?} */\nconst nodeContains = ((ɵ0))();\n/**\n * A `DomAdapter` powered by full browser DOM APIs.\n *\n * \\@security Tread carefully! Interacting with the DOM directly is dangerous and\n * can introduce XSS risks.\n */\n/* tslint:disable:requireParameterType no-console */\nclass BrowserDomAdapter extends GenericBrowserDomAdapter {\n    /**\n     * @return {?}\n     */\n    static makeCurrent() {\n        ɵsetRootDomAdapter(new BrowserDomAdapter());\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    getProperty(el, name) {\n        return ((/** @type {?} */ (el)))[name];\n    }\n    /**\n     * @param {?} error\n     * @return {?}\n     */\n    log(error) {\n        if (window.console) {\n            window.console.log && window.console.log(error);\n        }\n    }\n    /**\n     * @param {?} error\n     * @return {?}\n     */\n    logGroup(error) {\n        if (window.console) {\n            window.console.group && window.console.group(error);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    logGroupEnd() {\n        if (window.console) {\n            window.console.groupEnd && window.console.groupEnd();\n        }\n    }\n    /**\n     * @param {?} el\n     * @param {?} evt\n     * @param {?} listener\n     * @return {?}\n     */\n    onAndCancel(el, evt, listener) {\n        el.addEventListener(evt, listener, false);\n        // Needed to follow Dart's subscription semantic, until fix of\n        // https://code.google.com/p/dart/issues/detail?id=17406\n        return (/**\n         * @return {?}\n         */\n        () => {\n            el.removeEventListener(evt, listener, false);\n        });\n    }\n    /**\n     * @param {?} el\n     * @param {?} evt\n     * @return {?}\n     */\n    dispatchEvent(el, evt) {\n        el.dispatchEvent(evt);\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    remove(node) {\n        if (node.parentNode) {\n            node.parentNode.removeChild(node);\n        }\n        return node;\n    }\n    /**\n     * @param {?} el\n     * @return {?}\n     */\n    getValue(el) {\n        return el.value;\n    }\n    /**\n     * @param {?} tagName\n     * @param {?=} doc\n     * @return {?}\n     */\n    createElement(tagName, doc) {\n        doc = doc || this.getDefaultDocument();\n        return doc.createElement(tagName);\n    }\n    /**\n     * @return {?}\n     */\n    createHtmlDocument() {\n        return document.implementation.createHTMLDocument('fakeTitle');\n    }\n    /**\n     * @return {?}\n     */\n    getDefaultDocument() {\n        return document;\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    isElementNode(node) {\n        return node.nodeType === Node.ELEMENT_NODE;\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    isShadowRoot(node) {\n        return node instanceof DocumentFragment;\n    }\n    /**\n     * @param {?} doc\n     * @param {?} target\n     * @return {?}\n     */\n    getGlobalEventTarget(doc, target) {\n        if (target === 'window') {\n            return window;\n        }\n        if (target === 'document') {\n            return doc;\n        }\n        if (target === 'body') {\n            return doc.body;\n        }\n        return null;\n    }\n    /**\n     * @return {?}\n     */\n    getHistory() {\n        return window.history;\n    }\n    /**\n     * @return {?}\n     */\n    getLocation() {\n        return window.location;\n    }\n    /**\n     * @param {?} doc\n     * @return {?}\n     */\n    getBaseHref(doc) {\n        /** @type {?} */\n        const href = getBaseElementHref();\n        return href == null ? null : relativePath(href);\n    }\n    /**\n     * @return {?}\n     */\n    resetBaseElement() {\n        baseElement = null;\n    }\n    /**\n     * @return {?}\n     */\n    getUserAgent() {\n        return window.navigator.userAgent;\n    }\n    /**\n     * @return {?}\n     */\n    performanceNow() {\n        // performance.now() is not available in all browsers, see\n        // http://caniuse.com/#search=performance.now\n        return window.performance && window.performance.now ? window.performance.now() :\n            new Date().getTime();\n    }\n    /**\n     * @return {?}\n     */\n    supportsCookies() {\n        return true;\n    }\n    /**\n     * @param {?} name\n     * @return {?}\n     */\n    getCookie(name) {\n        return ɵparseCookieValue(document.cookie, name);\n    }\n}\n/** @type {?} */\nlet baseElement = null;\n/**\n * @return {?}\n */\nfunction getBaseElementHref() {\n    if (!baseElement) {\n        baseElement = (/** @type {?} */ (document.querySelector('base')));\n        if (!baseElement) {\n            return null;\n        }\n    }\n    return baseElement.getAttribute('href');\n}\n// based on urlUtils.js in AngularJS 1\n/** @type {?} */\nlet urlParsingNode;\n/**\n * @param {?} url\n * @return {?}\n */\nfunction relativePath(url) {\n    if (!urlParsingNode) {\n        urlParsingNode = document.createElement('a');\n    }\n    urlParsingNode.setAttribute('href', url);\n    return (urlParsingNode.pathname.charAt(0) === '/') ? urlParsingNode.pathname :\n        '/' + urlParsingNode.pathname;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/server-transition.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An id that identifies a particular application being bootstrapped, that should\n * match across the client/server boundary.\n * @type {?}\n */\nconst TRANSITION_ID = new InjectionToken('TRANSITION_ID');\n/**\n * @param {?} transitionId\n * @param {?} document\n * @param {?} injector\n * @return {?}\n */\nfunction appInitializerFactory(transitionId, document, injector) {\n    return (/**\n     * @return {?}\n     */\n    () => {\n        // Wait for all application initializers to be completed before removing the styles set by\n        // the server.\n        injector.get(ApplicationInitStatus).donePromise.then((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const dom = ɵgetDOM();\n            /** @type {?} */\n            const styles = Array.prototype.slice.apply(document.querySelectorAll(`style[ng-transition]`));\n            styles.filter((/**\n             * @param {?} el\n             * @return {?}\n             */\n            el => el.getAttribute('ng-transition') === transitionId))\n                .forEach((/**\n             * @param {?} el\n             * @return {?}\n             */\n            el => dom.remove(el)));\n        }));\n    });\n}\n/** @type {?} */\nconst SERVER_TRANSITION_PROVIDERS = [\n    {\n        provide: APP_INITIALIZER,\n        useFactory: appInitializerFactory,\n        deps: [TRANSITION_ID, DOCUMENT, Injector],\n        multi: true\n    },\n];\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/testability.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass BrowserGetTestability {\n    /**\n     * @return {?}\n     */\n    static init() {\n        setTestabilityGetter(new BrowserGetTestability());\n    }\n    /**\n     * @param {?} registry\n     * @return {?}\n     */\n    addToWindow(registry) {\n        ɵglobal['getAngularTestability'] = (/**\n         * @param {?} elem\n         * @param {?=} findInAncestors\n         * @return {?}\n         */\n        (elem, findInAncestors = true) => {\n            /** @type {?} */\n            const testability = registry.findTestabilityInTree(elem, findInAncestors);\n            if (testability == null) {\n                throw new Error('Could not find testability for element.');\n            }\n            return testability;\n        });\n        ɵglobal['getAllAngularTestabilities'] = (/**\n         * @return {?}\n         */\n        () => registry.getAllTestabilities());\n        ɵglobal['getAllAngularRootElements'] = (/**\n         * @return {?}\n         */\n        () => registry.getAllRootElements());\n        /** @type {?} */\n        const whenAllStable = (/**\n         * @param {?} callback\n         * @return {?}\n         */\n        (callback /** TODO #9100 */) => {\n            /** @type {?} */\n            const testabilities = ɵglobal['getAllAngularTestabilities']();\n            /** @type {?} */\n            let count = testabilities.length;\n            /** @type {?} */\n            let didWork = false;\n            /** @type {?} */\n            const decrement = (/**\n             * @param {?} didWork_\n             * @return {?}\n             */\n            function (didWork_ /** TODO #9100 */) {\n                didWork = didWork || didWork_;\n                count--;\n                if (count == 0) {\n                    callback(didWork);\n                }\n            });\n            testabilities.forEach((/**\n             * @param {?} testability\n             * @return {?}\n             */\n            function (testability /** TODO #9100 */) {\n                testability.whenStable(decrement);\n            }));\n        });\n        if (!ɵglobal['frameworkStabilizers']) {\n            ɵglobal['frameworkStabilizers'] = [];\n        }\n        ɵglobal['frameworkStabilizers'].push(whenAllStable);\n    }\n    /**\n     * @param {?} registry\n     * @param {?} elem\n     * @param {?} findInAncestors\n     * @return {?}\n     */\n    findTestabilityInTree(registry, elem, findInAncestors) {\n        if (elem == null) {\n            return null;\n        }\n        /** @type {?} */\n        const t = registry.getTestability(elem);\n        if (t != null) {\n            return t;\n        }\n        else if (!findInAncestors) {\n            return null;\n        }\n        if (ɵgetDOM().isShadowRoot(elem)) {\n            return this.findTestabilityInTree(registry, ((/** @type {?} */ (elem))).host, true);\n        }\n        return this.findTestabilityInTree(registry, elem.parentElement, true);\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst CAMEL_CASE_REGEXP = /([A-Z])/g;\n/** @type {?} */\nconst DASH_CASE_REGEXP = /-([a-z])/g;\n/**\n * @param {?} input\n * @return {?}\n */\nfunction camelCaseToDashCase(input) {\n    return input.replace(CAMEL_CASE_REGEXP, (/**\n     * @param {...?} m\n     * @return {?}\n     */\n    (...m) => '-' + m[1].toLowerCase()));\n}\n/**\n * @param {?} input\n * @return {?}\n */\nfunction dashCaseToCamelCase(input) {\n    return input.replace(DASH_CASE_REGEXP, (/**\n     * @param {...?} m\n     * @return {?}\n     */\n    (...m) => m[1].toUpperCase()));\n}\n/**\n * Exports the value under a given `name` in the global property `ng`. For example `ng.probe` if\n * `name` is `'probe'`.\n * @param {?} name Name under which it will be exported. Keep in mind this will be a property of the\n * global `ng` object.\n * @param {?} value The value to export.\n * @return {?}\n */\nfunction exportNgVar(name, value) {\n    if (typeof COMPILED === 'undefined' || !COMPILED) {\n        // Note: we can't export `ng` when using closure enhanced optimization as:\n        // - closure declares globals itself for minified names, which sometimes clobber our `ng` global\n        // - we can't declare a closure extern as the namespace `ng` is already used within Google\n        //   for typings for angularJS (via `goog.provide('ng....')`).\n        /** @type {?} */\n        const ng = ɵglobal['ng'] = ((/** @type {?} */ (ɵglobal['ng']))) || {};\n        ng[name] = value;\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/debug/ng_probe.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nconst ɵ0$1 = /**\n * @return {?}\n */\n() => ({\n    'ApplicationRef': ApplicationRef,\n    'NgZone': NgZone,\n});\n/** @type {?} */\nconst CORE_TOKENS = ((ɵ0$1))();\n/** @type {?} */\nconst INSPECT_GLOBAL_NAME = 'probe';\n/** @type {?} */\nconst CORE_TOKENS_GLOBAL_NAME = 'coreTokens';\n/**\n * Returns a {\\@link DebugElement} for the given native DOM element, or\n * null if the given native element does not have an Angular view associated\n * with it.\n * @param {?} element\n * @return {?}\n */\nfunction inspectNativeElementR2(element) {\n    return ɵgetDebugNodeR2(element);\n}\n/**\n * @param {?} coreTokens\n * @return {?}\n */\nfunction _createNgProbeR2(coreTokens) {\n    exportNgVar(INSPECT_GLOBAL_NAME, inspectNativeElementR2);\n    exportNgVar(CORE_TOKENS_GLOBAL_NAME, Object.assign(Object.assign({}, CORE_TOKENS), _ngProbeTokensToMap(coreTokens || [])));\n    return (/**\n     * @return {?}\n     */\n    () => inspectNativeElementR2);\n}\n/**\n * @param {?} tokens\n * @return {?}\n */\nfunction _ngProbeTokensToMap(tokens) {\n    return tokens.reduce((/**\n     * @param {?} prev\n     * @param {?} t\n     * @return {?}\n     */\n    (prev, t) => (prev[t.name] = t.token, prev)), {});\n}\n/**\n * In Ivy, we don't support NgProbe because we have our own set of testing utilities\n * with more robust functionality.\n *\n * We shouldn't bring in NgProbe because it prevents DebugNode and friends from\n * tree-shaking properly.\n * @type {?}\n */\nconst ELEMENT_PROBE_PROVIDERS__POST_R3__ = [];\n/**\n * Providers which support debugging Angular applications (e.g. via `ng.probe`).\n * @type {?}\n */\nconst ELEMENT_PROBE_PROVIDERS__PRE_R3__ = [\n    {\n        provide: APP_INITIALIZER,\n        useFactory: _createNgProbeR2,\n        deps: [\n            [NgProbeToken, new Optional()],\n        ],\n        multi: true,\n    },\n];\n/** @type {?} */\nconst ELEMENT_PROBE_PROVIDERS = ELEMENT_PROBE_PROVIDERS__POST_R3__;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/events/event_manager.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The injection token for the event-manager plug-in service.\n *\n * \\@publicApi\n * @type {?}\n */\nconst EVENT_MANAGER_PLUGINS = new InjectionToken('EventManagerPlugins');\n/**\n * An injectable service that provides event management for Angular\n * through a browser plug-in.\n *\n * \\@publicApi\n */\nclass EventManager {\n    /**\n     * Initializes an instance of the event-manager service.\n     * @param {?} plugins\n     * @param {?} _zone\n     */\n    constructor(plugins, _zone) {\n        this._zone = _zone;\n        this._eventNameToPlugin = new Map();\n        plugins.forEach((/**\n         * @template THIS\n         * @this {THIS}\n         * @param {?} p\n         * @return {THIS}\n         */\n        p => p.manager = this));\n        this._plugins = plugins.slice().reverse();\n    }\n    /**\n     * Registers a handler for a specific element and event.\n     *\n     * @param {?} element The HTML element to receive event notifications.\n     * @param {?} eventName The name of the event to listen for.\n     * @param {?} handler A function to call when the notification occurs. Receives the\n     * event object as an argument.\n     * @return {?} A callback function that can be used to remove the handler.\n     */\n    addEventListener(element, eventName, handler) {\n        /** @type {?} */\n        const plugin = this._findPluginFor(eventName);\n        return plugin.addEventListener(element, eventName, handler);\n    }\n    /**\n     * Registers a global handler for an event in a target view.\n     *\n     * @param {?} target A target for global event notifications. One of \"window\", \"document\", or \"body\".\n     * @param {?} eventName The name of the event to listen for.\n     * @param {?} handler A function to call when the notification occurs. Receives the\n     * event object as an argument.\n     * @return {?} A callback function that can be used to remove the handler.\n     */\n    addGlobalEventListener(target, eventName, handler) {\n        /** @type {?} */\n        const plugin = this._findPluginFor(eventName);\n        return plugin.addGlobalEventListener(target, eventName, handler);\n    }\n    /**\n     * Retrieves the compilation zone in which event listeners are registered.\n     * @return {?}\n     */\n    getZone() {\n        return this._zone;\n    }\n    /**\n     * \\@internal\n     * @param {?} eventName\n     * @return {?}\n     */\n    _findPluginFor(eventName) {\n        /** @type {?} */\n        const plugin = this._eventNameToPlugin.get(eventName);\n        if (plugin) {\n            return plugin;\n        }\n        /** @type {?} */\n        const plugins = this._plugins;\n        for (let i = 0; i < plugins.length; i++) {\n            /** @type {?} */\n            const plugin = plugins[i];\n            if (plugin.supports(eventName)) {\n                this._eventNameToPlugin.set(eventName, plugin);\n                return plugin;\n            }\n        }\n        throw new Error(`No event manager plugin found for event ${eventName}`);\n    }\n}\nEventManager.ɵfac = function EventManager_Factory(t) { return new (t || EventManager)(ɵngcc0.ɵɵinject(EVENT_MANAGER_PLUGINS), ɵngcc0.ɵɵinject(ɵngcc0.NgZone)); };\nEventManager.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: EventManager, factory: EventManager.ɵfac });\n/** @nocollapse */\nEventManager.ctorParameters = () => [\n    { type: Array, decorators: [{ type: Inject, args: [EVENT_MANAGER_PLUGINS,] }] },\n    { type: NgZone }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(EventManager, [{\n        type: Injectable\n    }], function () { return [{ type: Array, decorators: [{\n                type: Inject,\n                args: [EVENT_MANAGER_PLUGINS]\n            }] }, { type: ɵngcc0.NgZone }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    EventManager.prototype._plugins;\n    /**\n     * @type {?}\n     * @private\n     */\n    EventManager.prototype._eventNameToPlugin;\n    /**\n     * @type {?}\n     * @private\n     */\n    EventManager.prototype._zone;\n}\n/**\n * @abstract\n */\nclass EventManagerPlugin {\n    /**\n     * @param {?} _doc\n     */\n    constructor(_doc) {\n        this._doc = _doc;\n    }\n    /**\n     * @param {?} element\n     * @param {?} eventName\n     * @param {?} handler\n     * @return {?}\n     */\n    addGlobalEventListener(element, eventName, handler) {\n        /** @type {?} */\n        const target = ɵgetDOM().getGlobalEventTarget(this._doc, element);\n        if (!target) {\n            throw new Error(`Unsupported event target ${target} for event ${eventName}`);\n        }\n        return this.addEventListener(target, eventName, handler);\n    }\n}\nif (false) {\n    /** @type {?} */\n    EventManagerPlugin.prototype.manager;\n    /**\n     * @type {?}\n     * @private\n     */\n    EventManagerPlugin.prototype._doc;\n    /**\n     * @abstract\n     * @param {?} eventName\n     * @return {?}\n     */\n    EventManagerPlugin.prototype.supports = function (eventName) { };\n    /**\n     * @abstract\n     * @param {?} element\n     * @param {?} eventName\n     * @param {?} handler\n     * @return {?}\n     */\n    EventManagerPlugin.prototype.addEventListener = function (element, eventName, handler) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/shared_styles_host.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass SharedStylesHost {\n    constructor() {\n        /**\n         * \\@internal\n         */\n        this._stylesSet = new Set();\n    }\n    /**\n     * @param {?} styles\n     * @return {?}\n     */\n    addStyles(styles) {\n        /** @type {?} */\n        const additions = new Set();\n        styles.forEach((/**\n         * @param {?} style\n         * @return {?}\n         */\n        style => {\n            if (!this._stylesSet.has(style)) {\n                this._stylesSet.add(style);\n                additions.add(style);\n            }\n        }));\n        this.onStylesAdded(additions);\n    }\n    /**\n     * @param {?} additions\n     * @return {?}\n     */\n    onStylesAdded(additions) { }\n    /**\n     * @return {?}\n     */\n    getAllStyles() {\n        return Array.from(this._stylesSet);\n    }\n}\nSharedStylesHost.ɵfac = function SharedStylesHost_Factory(t) { return new (t || SharedStylesHost)(); };\nSharedStylesHost.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: SharedStylesHost, factory: SharedStylesHost.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(SharedStylesHost, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * \\@internal\n     * @type {?}\n     * @protected\n     */\n    SharedStylesHost.prototype._stylesSet;\n}\nclass DomSharedStylesHost extends SharedStylesHost {\n    /**\n     * @param {?} _doc\n     */\n    constructor(_doc) {\n        super();\n        this._doc = _doc;\n        this._hostNodes = new Set();\n        this._styleNodes = new Set();\n        this._hostNodes.add(_doc.head);\n    }\n    /**\n     * @private\n     * @param {?} styles\n     * @param {?} host\n     * @return {?}\n     */\n    _addStylesToHost(styles, host) {\n        styles.forEach((/**\n         * @param {?} style\n         * @return {?}\n         */\n        (style) => {\n            /** @type {?} */\n            const styleEl = this._doc.createElement('style');\n            styleEl.textContent = style;\n            this._styleNodes.add(host.appendChild(styleEl));\n        }));\n    }\n    /**\n     * @param {?} hostNode\n     * @return {?}\n     */\n    addHost(hostNode) {\n        this._addStylesToHost(this._stylesSet, hostNode);\n        this._hostNodes.add(hostNode);\n    }\n    /**\n     * @param {?} hostNode\n     * @return {?}\n     */\n    removeHost(hostNode) {\n        this._hostNodes.delete(hostNode);\n    }\n    /**\n     * @param {?} additions\n     * @return {?}\n     */\n    onStylesAdded(additions) {\n        this._hostNodes.forEach((/**\n         * @param {?} hostNode\n         * @return {?}\n         */\n        hostNode => this._addStylesToHost(additions, hostNode)));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._styleNodes.forEach((/**\n         * @param {?} styleNode\n         * @return {?}\n         */\n        styleNode => ɵgetDOM().remove(styleNode)));\n    }\n}\nDomSharedStylesHost.ɵfac = function DomSharedStylesHost_Factory(t) { return new (t || DomSharedStylesHost)(ɵngcc0.ɵɵinject(DOCUMENT)); };\nDomSharedStylesHost.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: DomSharedStylesHost, factory: DomSharedStylesHost.ɵfac });\n/** @nocollapse */\nDomSharedStylesHost.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DomSharedStylesHost, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DomSharedStylesHost.prototype._hostNodes;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomSharedStylesHost.prototype._styleNodes;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomSharedStylesHost.prototype._doc;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/dom_renderer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst NAMESPACE_URIS = {\n    'svg': 'http://www.w3.org/2000/svg',\n    'xhtml': 'http://www.w3.org/1999/xhtml',\n    'xlink': 'http://www.w3.org/1999/xlink',\n    'xml': 'http://www.w3.org/XML/1998/namespace',\n    'xmlns': 'http://www.w3.org/2000/xmlns/',\n};\n/** @type {?} */\nconst COMPONENT_REGEX = /%COMP%/g;\n/** @type {?} */\nconst NG_DEV_MODE = typeof ngDevMode === 'undefined' || !!ngDevMode;\n/** @type {?} */\nconst COMPONENT_VARIABLE = '%COMP%';\n/** @type {?} */\nconst HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;\n/** @type {?} */\nconst CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;\n/**\n * @param {?} componentShortId\n * @return {?}\n */\nfunction shimContentAttribute(componentShortId) {\n    return CONTENT_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\n/**\n * @param {?} componentShortId\n * @return {?}\n */\nfunction shimHostAttribute(componentShortId) {\n    return HOST_ATTR.replace(COMPONENT_REGEX, componentShortId);\n}\n/**\n * @param {?} compId\n * @param {?} styles\n * @param {?} target\n * @return {?}\n */\nfunction flattenStyles(compId, styles, target) {\n    for (let i = 0; i < styles.length; i++) {\n        /** @type {?} */\n        let style = styles[i];\n        if (Array.isArray(style)) {\n            flattenStyles(compId, style, target);\n        }\n        else {\n            style = style.replace(COMPONENT_REGEX, compId);\n            target.push(style);\n        }\n    }\n    return target;\n}\n/**\n * @param {?} eventHandler\n * @return {?}\n */\nfunction decoratePreventDefault(eventHandler) {\n    // `DebugNode.triggerEventHandler` needs to know if the listener was created with\n    // decoratePreventDefault or is a listener added outside the Angular context so it can handle the\n    // two differently. In the first case, the special '__ngUnwrap__' token is passed to the unwrap\n    // the listener (see below).\n    return (/**\n     * @param {?} event\n     * @return {?}\n     */\n    (event) => {\n        // Ivy uses '__ngUnwrap__' as a special token that allows us to unwrap the function\n        // so that it can be invoked programmatically by `DebugNode.triggerEventHandler`. The debug_node\n        // can inspect the listener toString contents for the existence of this special token. Because\n        // the token is a string literal, it is ensured to not be modified by compiled code.\n        if (event === '__ngUnwrap__') {\n            return eventHandler;\n        }\n        /** @type {?} */\n        const allowDefaultBehavior = eventHandler(event);\n        if (allowDefaultBehavior === false) {\n            // TODO(tbosch): move preventDefault into event plugins...\n            event.preventDefault();\n            event.returnValue = false;\n        }\n        return undefined;\n    });\n}\nclass DomRendererFactory2 {\n    /**\n     * @param {?} eventManager\n     * @param {?} sharedStylesHost\n     * @param {?} appId\n     */\n    constructor(eventManager, sharedStylesHost, appId) {\n        this.eventManager = eventManager;\n        this.sharedStylesHost = sharedStylesHost;\n        this.appId = appId;\n        this.rendererByCompId = new Map();\n        this.defaultRenderer = new DefaultDomRenderer2(eventManager);\n    }\n    /**\n     * @param {?} element\n     * @param {?} type\n     * @return {?}\n     */\n    createRenderer(element, type) {\n        if (!element || !type) {\n            return this.defaultRenderer;\n        }\n        switch (type.encapsulation) {\n            case ViewEncapsulation.Emulated: {\n                /** @type {?} */\n                let renderer = this.rendererByCompId.get(type.id);\n                if (!renderer) {\n                    renderer = new EmulatedEncapsulationDomRenderer2(this.eventManager, this.sharedStylesHost, type, this.appId);\n                    this.rendererByCompId.set(type.id, renderer);\n                }\n                ((/** @type {?} */ (renderer))).applyToHost(element);\n                return renderer;\n            }\n            case ViewEncapsulation.Native:\n            case ViewEncapsulation.ShadowDom:\n                return new ShadowDomRenderer(this.eventManager, this.sharedStylesHost, element, type);\n            default: {\n                if (!this.rendererByCompId.has(type.id)) {\n                    /** @type {?} */\n                    const styles = flattenStyles(type.id, type.styles, []);\n                    this.sharedStylesHost.addStyles(styles);\n                    this.rendererByCompId.set(type.id, this.defaultRenderer);\n                }\n                return this.defaultRenderer;\n            }\n        }\n    }\n    /**\n     * @return {?}\n     */\n    begin() { }\n    /**\n     * @return {?}\n     */\n    end() { }\n}\nDomRendererFactory2.ɵfac = function DomRendererFactory2_Factory(t) { return new (t || DomRendererFactory2)(ɵngcc0.ɵɵinject(EventManager), ɵngcc0.ɵɵinject(DomSharedStylesHost), ɵngcc0.ɵɵinject(APP_ID)); };\nDomRendererFactory2.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: DomRendererFactory2, factory: DomRendererFactory2.ɵfac });\n/** @nocollapse */\nDomRendererFactory2.ctorParameters = () => [\n    { type: EventManager },\n    { type: DomSharedStylesHost },\n    { type: String, decorators: [{ type: Inject, args: [APP_ID,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DomRendererFactory2, [{\n        type: Injectable\n    }], function () { return [{ type: EventManager }, { type: DomSharedStylesHost }, { type: String, decorators: [{\n                type: Inject,\n                args: [APP_ID]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DomRendererFactory2.prototype.rendererByCompId;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomRendererFactory2.prototype.defaultRenderer;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomRendererFactory2.prototype.eventManager;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomRendererFactory2.prototype.sharedStylesHost;\n    /**\n     * @type {?}\n     * @private\n     */\n    DomRendererFactory2.prototype.appId;\n}\nclass DefaultDomRenderer2 {\n    /**\n     * @param {?} eventManager\n     */\n    constructor(eventManager) {\n        this.eventManager = eventManager;\n        this.data = Object.create(null);\n    }\n    /**\n     * @return {?}\n     */\n    destroy() { }\n    /**\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    createElement(name, namespace) {\n        if (namespace) {\n            // In cases where Ivy (not ViewEngine) is giving us the actual namespace, the look up by key\n            // will result in undefined, so we just return the namespace here.\n            return document.createElementNS(NAMESPACE_URIS[namespace] || namespace, name);\n        }\n        return document.createElement(name);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    createComment(value) {\n        return document.createComment(value);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    createText(value) {\n        return document.createTextNode(value);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @return {?}\n     */\n    appendChild(parent, newChild) {\n        parent.appendChild(newChild);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @param {?} refChild\n     * @return {?}\n     */\n    insertBefore(parent, newChild, refChild) {\n        if (parent) {\n            parent.insertBefore(newChild, refChild);\n        }\n    }\n    /**\n     * @param {?} parent\n     * @param {?} oldChild\n     * @return {?}\n     */\n    removeChild(parent, oldChild) {\n        if (parent) {\n            parent.removeChild(oldChild);\n        }\n    }\n    /**\n     * @param {?} selectorOrNode\n     * @param {?=} preserveContent\n     * @return {?}\n     */\n    selectRootElement(selectorOrNode, preserveContent) {\n        /** @type {?} */\n        let el = typeof selectorOrNode === 'string' ? document.querySelector(selectorOrNode) :\n            selectorOrNode;\n        if (!el) {\n            throw new Error(`The selector \"${selectorOrNode}\" did not match any elements`);\n        }\n        if (!preserveContent) {\n            el.textContent = '';\n        }\n        return el;\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    parentNode(node) {\n        return node.parentNode;\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    nextSibling(node) {\n        return node.nextSibling;\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @param {?=} namespace\n     * @return {?}\n     */\n    setAttribute(el, name, value, namespace) {\n        if (namespace) {\n            name = namespace + ':' + name;\n            // TODO(FW-811): Ivy may cause issues here because it's passing around\n            // full URIs for namespaces, therefore this lookup will fail.\n            /** @type {?} */\n            const namespaceUri = NAMESPACE_URIS[namespace];\n            if (namespaceUri) {\n                el.setAttributeNS(namespaceUri, name, value);\n            }\n            else {\n                el.setAttribute(name, value);\n            }\n        }\n        else {\n            el.setAttribute(name, value);\n        }\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    removeAttribute(el, name, namespace) {\n        if (namespace) {\n            // TODO(FW-811): Ivy may cause issues here because it's passing around\n            // full URIs for namespaces, therefore this lookup will fail.\n            /** @type {?} */\n            const namespaceUri = NAMESPACE_URIS[namespace];\n            if (namespaceUri) {\n                el.removeAttributeNS(namespaceUri, name);\n            }\n            else {\n                // TODO(FW-811): Since ivy is passing around full URIs for namespaces\n                // this could result in properties like `http://www.w3.org/2000/svg:cx=\"123\"`,\n                // which is wrong.\n                el.removeAttribute(`${namespace}:${name}`);\n            }\n        }\n        else {\n            el.removeAttribute(name);\n        }\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    addClass(el, name) {\n        el.classList.add(name);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    removeClass(el, name) {\n        el.classList.remove(name);\n    }\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?} value\n     * @param {?} flags\n     * @return {?}\n     */\n    setStyle(el, style, value, flags) {\n        if (flags & RendererStyleFlags2.DashCase) {\n            el.style.setProperty(style, value, !!(flags & RendererStyleFlags2.Important) ? 'important' : '');\n        }\n        else {\n            el.style[style] = value;\n        }\n    }\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?} flags\n     * @return {?}\n     */\n    removeStyle(el, style, flags) {\n        if (flags & RendererStyleFlags2.DashCase) {\n            el.style.removeProperty(style);\n        }\n        else {\n            // IE requires '' instead of null\n            // see https://github.com/angular/angular/issues/7916\n            el.style[style] = '';\n        }\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    setProperty(el, name, value) {\n        NG_DEV_MODE && checkNoSyntheticProp(name, 'property');\n        el[name] = value;\n    }\n    /**\n     * @param {?} node\n     * @param {?} value\n     * @return {?}\n     */\n    setValue(node, value) {\n        node.nodeValue = value;\n    }\n    /**\n     * @param {?} target\n     * @param {?} event\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(target, event, callback) {\n        NG_DEV_MODE && checkNoSyntheticProp(event, 'listener');\n        if (typeof target === 'string') {\n            return (/** @type {?} */ (this.eventManager.addGlobalEventListener(target, event, decoratePreventDefault(callback))));\n        }\n        return (/** @type {?} */ ((/** @type {?} */ (this.eventManager.addEventListener(target, event, decoratePreventDefault(callback))))));\n    }\n}\nif (false) {\n    /** @type {?} */\n    DefaultDomRenderer2.prototype.data;\n    /** @type {?} */\n    DefaultDomRenderer2.prototype.destroyNode;\n    /**\n     * @type {?}\n     * @private\n     */\n    DefaultDomRenderer2.prototype.eventManager;\n}\nconst ɵ0$2 = /**\n * @return {?}\n */\n() => '@'.charCodeAt(0);\n/** @type {?} */\nconst AT_CHARCODE = ((ɵ0$2))();\n/**\n * @param {?} name\n * @param {?} nameKind\n * @return {?}\n */\nfunction checkNoSyntheticProp(name, nameKind) {\n    if (name.charCodeAt(0) === AT_CHARCODE) {\n        throw new Error(`Found the synthetic ${nameKind} ${name}. Please include either \"BrowserAnimationsModule\" or \"NoopAnimationsModule\" in your application.`);\n    }\n}\nclass EmulatedEncapsulationDomRenderer2 extends DefaultDomRenderer2 {\n    /**\n     * @param {?} eventManager\n     * @param {?} sharedStylesHost\n     * @param {?} component\n     * @param {?} appId\n     */\n    constructor(eventManager, sharedStylesHost, component, appId) {\n        super(eventManager);\n        this.component = component;\n        /** @type {?} */\n        const styles = flattenStyles(appId + '-' + component.id, component.styles, []);\n        sharedStylesHost.addStyles(styles);\n        this.contentAttr = shimContentAttribute(appId + '-' + component.id);\n        this.hostAttr = shimHostAttribute(appId + '-' + component.id);\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    applyToHost(element) {\n        super.setAttribute(element, this.hostAttr, '');\n    }\n    /**\n     * @param {?} parent\n     * @param {?} name\n     * @return {?}\n     */\n    createElement(parent, name) {\n        /** @type {?} */\n        const el = super.createElement(parent, name);\n        super.setAttribute(el, this.contentAttr, '');\n        return el;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    EmulatedEncapsulationDomRenderer2.prototype.contentAttr;\n    /**\n     * @type {?}\n     * @private\n     */\n    EmulatedEncapsulationDomRenderer2.prototype.hostAttr;\n    /**\n     * @type {?}\n     * @private\n     */\n    EmulatedEncapsulationDomRenderer2.prototype.component;\n}\nclass ShadowDomRenderer extends DefaultDomRenderer2 {\n    /**\n     * @param {?} eventManager\n     * @param {?} sharedStylesHost\n     * @param {?} hostEl\n     * @param {?} component\n     */\n    constructor(eventManager, sharedStylesHost, hostEl, component) {\n        super(eventManager);\n        this.sharedStylesHost = sharedStylesHost;\n        this.hostEl = hostEl;\n        this.component = component;\n        if (component.encapsulation === ViewEncapsulation.ShadowDom) {\n            this.shadowRoot = ((/** @type {?} */ (hostEl))).attachShadow({ mode: 'open' });\n        }\n        else {\n            this.shadowRoot = ((/** @type {?} */ (hostEl))).createShadowRoot();\n        }\n        this.sharedStylesHost.addHost(this.shadowRoot);\n        /** @type {?} */\n        const styles = flattenStyles(component.id, component.styles, []);\n        for (let i = 0; i < styles.length; i++) {\n            /** @type {?} */\n            const styleEl = document.createElement('style');\n            styleEl.textContent = styles[i];\n            this.shadowRoot.appendChild(styleEl);\n        }\n    }\n    /**\n     * @private\n     * @param {?} node\n     * @return {?}\n     */\n    nodeOrShadowRoot(node) {\n        return node === this.hostEl ? this.shadowRoot : node;\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this.sharedStylesHost.removeHost(this.shadowRoot);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @return {?}\n     */\n    appendChild(parent, newChild) {\n        return super.appendChild(this.nodeOrShadowRoot(parent), newChild);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @param {?} refChild\n     * @return {?}\n     */\n    insertBefore(parent, newChild, refChild) {\n        return super.insertBefore(this.nodeOrShadowRoot(parent), newChild, refChild);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} oldChild\n     * @return {?}\n     */\n    removeChild(parent, oldChild) {\n        return super.removeChild(this.nodeOrShadowRoot(parent), oldChild);\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    parentNode(node) {\n        return this.nodeOrShadowRoot(super.parentNode(this.nodeOrShadowRoot(node)));\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ShadowDomRenderer.prototype.shadowRoot;\n    /**\n     * @type {?}\n     * @private\n     */\n    ShadowDomRenderer.prototype.sharedStylesHost;\n    /**\n     * @type {?}\n     * @private\n     */\n    ShadowDomRenderer.prototype.hostEl;\n    /**\n     * @type {?}\n     * @private\n     */\n    ShadowDomRenderer.prototype.component;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/events/dom_events.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass DomEventsPlugin extends EventManagerPlugin {\n    /**\n     * @param {?} doc\n     */\n    constructor(doc) {\n        super(doc);\n    }\n    // This plugin should come last in the list of plugins, because it accepts all\n    // events.\n    /**\n     * @param {?} eventName\n     * @return {?}\n     */\n    supports(eventName) {\n        return true;\n    }\n    /**\n     * @param {?} element\n     * @param {?} eventName\n     * @param {?} handler\n     * @return {?}\n     */\n    addEventListener(element, eventName, handler) {\n        element.addEventListener(eventName, (/** @type {?} */ (handler)), false);\n        return (/**\n         * @return {?}\n         */\n        () => this.removeEventListener(element, eventName, (/** @type {?} */ (handler))));\n    }\n    /**\n     * @param {?} target\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    removeEventListener(target, eventName, callback) {\n        return target.removeEventListener(eventName, (/** @type {?} */ (callback)));\n    }\n}\nDomEventsPlugin.ɵfac = function DomEventsPlugin_Factory(t) { return new (t || DomEventsPlugin)(ɵngcc0.ɵɵinject(DOCUMENT)); };\nDomEventsPlugin.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: DomEventsPlugin, factory: DomEventsPlugin.ɵfac });\n/** @nocollapse */\nDomEventsPlugin.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DomEventsPlugin, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/events/hammer_gestures.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Supported HammerJS recognizer event names.\n * @type {?}\n */\nconst EVENT_NAMES = {\n    // pan\n    'pan': true,\n    'panstart': true,\n    'panmove': true,\n    'panend': true,\n    'pancancel': true,\n    'panleft': true,\n    'panright': true,\n    'panup': true,\n    'pandown': true,\n    // pinch\n    'pinch': true,\n    'pinchstart': true,\n    'pinchmove': true,\n    'pinchend': true,\n    'pinchcancel': true,\n    'pinchin': true,\n    'pinchout': true,\n    // press\n    'press': true,\n    'pressup': true,\n    // rotate\n    'rotate': true,\n    'rotatestart': true,\n    'rotatemove': true,\n    'rotateend': true,\n    'rotatecancel': true,\n    // swipe\n    'swipe': true,\n    'swipeleft': true,\n    'swiperight': true,\n    'swipeup': true,\n    'swipedown': true,\n    // tap\n    'tap': true,\n};\n/**\n * DI token for providing [HammerJS](http://hammerjs.github.io/) support to Angular.\n * @see `HammerGestureConfig`\n *\n * \\@ngModule HammerModule\n * \\@publicApi\n * @type {?}\n */\nconst HAMMER_GESTURE_CONFIG = new InjectionToken('HammerGestureConfig');\n/**\n * Injection token used to provide a {\\@link HammerLoader} to Angular.\n *\n * \\@publicApi\n * @type {?}\n */\nconst HAMMER_LOADER = new InjectionToken('HammerLoader');\n/**\n * @record\n */\nfunction HammerInstance() { }\nif (false) {\n    /**\n     * @param {?} eventName\n     * @param {?=} callback\n     * @return {?}\n     */\n    HammerInstance.prototype.on = function (eventName, callback) { };\n    /**\n     * @param {?} eventName\n     * @param {?=} callback\n     * @return {?}\n     */\n    HammerInstance.prototype.off = function (eventName, callback) { };\n    /**\n     * @return {?}\n     */\n    HammerInstance.prototype.destroy = function () { };\n}\n/**\n * An injectable [HammerJS Manager](http://hammerjs.github.io/api/#hammer.manager)\n * for gesture recognition. Configures specific event recognition.\n * \\@publicApi\n */\nclass HammerGestureConfig {\n    constructor() {\n        /**\n         * A set of supported event names for gestures to be used in Angular.\n         * Angular supports all built-in recognizers, as listed in\n         * [HammerJS documentation](http://hammerjs.github.io/).\n         */\n        this.events = [];\n        /**\n         * Maps gesture event names to a set of configuration options\n         * that specify overrides to the default values for specific properties.\n         *\n         * The key is a supported event name to be configured,\n         * and the options object contains a set of properties, with override values\n         * to be applied to the named recognizer event.\n         * For example, to disable recognition of the rotate event, specify\n         *  `{\"rotate\": {\"enable\": false}}`.\n         *\n         * Properties that are not present take the HammerJS default values.\n         * For information about which properties are supported for which events,\n         * and their allowed and default values, see\n         * [HammerJS documentation](http://hammerjs.github.io/).\n         *\n         */\n        this.overrides = {};\n    }\n    /**\n     * Creates a [HammerJS Manager](http://hammerjs.github.io/api/#hammer.manager)\n     * and attaches it to a given HTML element.\n     * @param {?} element The element that will recognize gestures.\n     * @return {?} A HammerJS event-manager object.\n     */\n    buildHammer(element) {\n        /** @type {?} */\n        const mc = new (/** @type {?} */ (Hammer))(element, this.options);\n        mc.get('pinch').set({ enable: true });\n        mc.get('rotate').set({ enable: true });\n        for (const eventName in this.overrides) {\n            mc.get(eventName).set(this.overrides[eventName]);\n        }\n        return mc;\n    }\n}\nHammerGestureConfig.ɵfac = function HammerGestureConfig_Factory(t) { return new (t || HammerGestureConfig)(); };\nHammerGestureConfig.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HammerGestureConfig, factory: HammerGestureConfig.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HammerGestureConfig, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * A set of supported event names for gestures to be used in Angular.\n     * Angular supports all built-in recognizers, as listed in\n     * [HammerJS documentation](http://hammerjs.github.io/).\n     * @type {?}\n     */\n    HammerGestureConfig.prototype.events;\n    /**\n     * Maps gesture event names to a set of configuration options\n     * that specify overrides to the default values for specific properties.\n     *\n     * The key is a supported event name to be configured,\n     * and the options object contains a set of properties, with override values\n     * to be applied to the named recognizer event.\n     * For example, to disable recognition of the rotate event, specify\n     *  `{\"rotate\": {\"enable\": false}}`.\n     *\n     * Properties that are not present take the HammerJS default values.\n     * For information about which properties are supported for which events,\n     * and their allowed and default values, see\n     * [HammerJS documentation](http://hammerjs.github.io/).\n     *\n     * @type {?}\n     */\n    HammerGestureConfig.prototype.overrides;\n    /**\n     * Properties whose default values can be overridden for a given event.\n     * Different sets of properties apply to different events.\n     * For information about which properties are supported for which events,\n     * and their allowed and default values, see\n     * [HammerJS documentation](http://hammerjs.github.io/).\n     * @type {?}\n     */\n    HammerGestureConfig.prototype.options;\n}\n/**\n * Event plugin that adds Hammer support to an application.\n *\n * \\@ngModule HammerModule\n */\nclass HammerGesturesPlugin extends EventManagerPlugin {\n    /**\n     * @param {?} doc\n     * @param {?} _config\n     * @param {?} console\n     * @param {?=} loader\n     */\n    constructor(doc, _config, console, loader) {\n        super(doc);\n        this._config = _config;\n        this.console = console;\n        this.loader = loader;\n    }\n    /**\n     * @param {?} eventName\n     * @return {?}\n     */\n    supports(eventName) {\n        if (!EVENT_NAMES.hasOwnProperty(eventName.toLowerCase()) && !this.isCustomEvent(eventName)) {\n            return false;\n        }\n        if (!((/** @type {?} */ (window))).Hammer && !this.loader) {\n            this.console.warn(`The \"${eventName}\" event cannot be bound because Hammer.JS is not ` +\n                `loaded and no custom loader has been specified.`);\n            return false;\n        }\n        return true;\n    }\n    /**\n     * @param {?} element\n     * @param {?} eventName\n     * @param {?} handler\n     * @return {?}\n     */\n    addEventListener(element, eventName, handler) {\n        /** @type {?} */\n        const zone = this.manager.getZone();\n        eventName = eventName.toLowerCase();\n        // If Hammer is not present but a loader is specified, we defer adding the event listener\n        // until Hammer is loaded.\n        if (!((/** @type {?} */ (window))).Hammer && this.loader) {\n            // This `addEventListener` method returns a function to remove the added listener.\n            // Until Hammer is loaded, the returned function needs to *cancel* the registration rather\n            // than remove anything.\n            /** @type {?} */\n            let cancelRegistration = false;\n            /** @type {?} */\n            let deregister = (/**\n             * @return {?}\n             */\n            () => {\n                cancelRegistration = true;\n            });\n            this.loader()\n                .then((/**\n             * @return {?}\n             */\n            () => {\n                // If Hammer isn't actually loaded when the custom loader resolves, give up.\n                if (!((/** @type {?} */ (window))).Hammer) {\n                    this.console.warn(`The custom HAMMER_LOADER completed, but Hammer.JS is not present.`);\n                    deregister = (/**\n                     * @return {?}\n                     */\n                    () => { });\n                    return;\n                }\n                if (!cancelRegistration) {\n                    // Now that Hammer is loaded and the listener is being loaded for real,\n                    // the deregistration function changes from canceling registration to removal.\n                    deregister = this.addEventListener(element, eventName, handler);\n                }\n            }))\n                .catch((/**\n             * @return {?}\n             */\n            () => {\n                this.console.warn(`The \"${eventName}\" event cannot be bound because the custom ` +\n                    `Hammer.JS loader failed.`);\n                deregister = (/**\n                 * @return {?}\n                 */\n                () => { });\n            }));\n            // Return a function that *executes* `deregister` (and not `deregister` itself) so that we\n            // can change the behavior of `deregister` once the listener is added. Using a closure in\n            // this way allows us to avoid any additional data structures to track listener removal.\n            return (/**\n             * @return {?}\n             */\n            () => {\n                deregister();\n            });\n        }\n        return zone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            // Creating the manager bind events, must be done outside of angular\n            /** @type {?} */\n            const mc = this._config.buildHammer(element);\n            /** @type {?} */\n            const callback = (/**\n             * @param {?} eventObj\n             * @return {?}\n             */\n            function (eventObj) {\n                zone.runGuarded((/**\n                 * @return {?}\n                 */\n                function () {\n                    handler(eventObj);\n                }));\n            });\n            mc.on(eventName, callback);\n            return (/**\n             * @return {?}\n             */\n            () => {\n                mc.off(eventName, callback);\n                // destroy mc to prevent memory leak\n                if (typeof mc.destroy === 'function') {\n                    mc.destroy();\n                }\n            });\n        }));\n    }\n    /**\n     * @param {?} eventName\n     * @return {?}\n     */\n    isCustomEvent(eventName) {\n        return this._config.events.indexOf(eventName) > -1;\n    }\n}\nHammerGesturesPlugin.ɵfac = function HammerGesturesPlugin_Factory(t) { return new (t || HammerGesturesPlugin)(ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(HAMMER_GESTURE_CONFIG), ɵngcc0.ɵɵinject(ɵngcc0.ɵConsole), ɵngcc0.ɵɵinject(HAMMER_LOADER, 8)); };\nHammerGesturesPlugin.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: HammerGesturesPlugin, factory: HammerGesturesPlugin.ɵfac });\n/** @nocollapse */\nHammerGesturesPlugin.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: HammerGestureConfig, decorators: [{ type: Inject, args: [HAMMER_GESTURE_CONFIG,] }] },\n    { type: ɵConsole },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [HAMMER_LOADER,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HammerGesturesPlugin, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: HammerGestureConfig, decorators: [{\n                type: Inject,\n                args: [HAMMER_GESTURE_CONFIG]\n            }] }, { type: ɵngcc0.ɵConsole }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [HAMMER_LOADER]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    HammerGesturesPlugin.prototype._config;\n    /**\n     * @type {?}\n     * @private\n     */\n    HammerGesturesPlugin.prototype.console;\n    /**\n     * @type {?}\n     * @private\n     */\n    HammerGesturesPlugin.prototype.loader;\n}\n/**\n * In Ivy, support for Hammer gestures is optional, so applications must\n * import the `HammerModule` at root to turn on support. This means that\n * Hammer-specific code can be tree-shaken away if not needed.\n * @type {?}\n */\nconst HAMMER_PROVIDERS__POST_R3__ = [];\n/**\n * In View Engine, support for Hammer gestures is built-in by default.\n * @type {?}\n */\nconst HAMMER_PROVIDERS__PRE_R3__ = [\n    {\n        provide: EVENT_MANAGER_PLUGINS,\n        useClass: HammerGesturesPlugin,\n        multi: true,\n        deps: [DOCUMENT, HAMMER_GESTURE_CONFIG, ɵConsole, [new Optional(), HAMMER_LOADER]]\n    },\n    { provide: HAMMER_GESTURE_CONFIG, useClass: HammerGestureConfig, deps: [] },\n];\n/** @type {?} */\nconst HAMMER_PROVIDERS = HAMMER_PROVIDERS__POST_R3__;\n/**\n * Adds support for HammerJS.\n *\n * Import this module at the root of your application so that Angular can work with\n * HammerJS to detect gesture events.\n *\n * Note that applications still need to include the HammerJS script itself. This module\n * simply sets up the coordination layer between HammerJS and Angular's EventManager.\n *\n * \\@publicApi\n */\nclass HammerModule {\n}\nHammerModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: HammerModule });\nHammerModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function HammerModule_Factory(t) { return new (t || HammerModule)(); }, providers: HAMMER_PROVIDERS__PRE_R3__ });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(HammerModule, [{\n        type: NgModule,\n        args: [{ providers: HAMMER_PROVIDERS__PRE_R3__ }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/events/key_events.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Defines supported modifiers for key events.\n * @type {?}\n */\nconst MODIFIER_KEYS = ['alt', 'control', 'meta', 'shift'];\n/** @type {?} */\nconst DOM_KEY_LOCATION_NUMPAD = 3;\n// Map to convert some key or keyIdentifier values to what will be returned by getEventKey\n/** @type {?} */\nconst _keyMap = {\n    // The following values are here for cross-browser compatibility and to match the W3C standard\n    // cf http://www.w3.org/TR/DOM-Level-3-Events-key/\n    '\\b': 'Backspace',\n    '\\t': 'Tab',\n    '\\x7F': 'Delete',\n    '\\x1B': 'Escape',\n    'Del': 'Delete',\n    'Esc': 'Escape',\n    'Left': 'ArrowLeft',\n    'Right': 'ArrowRight',\n    'Up': 'ArrowUp',\n    'Down': 'ArrowDown',\n    'Menu': 'ContextMenu',\n    'Scroll': 'ScrollLock',\n    'Win': 'OS'\n};\n// There is a bug in Chrome for numeric keypad keys:\n// https://code.google.com/p/chromium/issues/detail?id=155654\n// 1, 2, 3 ... are reported as A, B, C ...\n/** @type {?} */\nconst _chromeNumKeyPadMap = {\n    'A': '1',\n    'B': '2',\n    'C': '3',\n    'D': '4',\n    'E': '5',\n    'F': '6',\n    'G': '7',\n    'H': '8',\n    'I': '9',\n    'J': '*',\n    'K': '+',\n    'M': '-',\n    'N': '.',\n    'O': '/',\n    '\\x60': '0',\n    '\\x90': 'NumLock'\n};\nconst ɵ0$3 = /**\n * @param {?} event\n * @return {?}\n */\n(event) => event.altKey, ɵ1 = /**\n * @param {?} event\n * @return {?}\n */\n(event) => event.ctrlKey, ɵ2 = /**\n * @param {?} event\n * @return {?}\n */\n(event) => event.metaKey, ɵ3 = /**\n * @param {?} event\n * @return {?}\n */\n(event) => event.shiftKey;\n/**\n * Retrieves modifiers from key-event objects.\n * @type {?}\n */\nconst MODIFIER_KEY_GETTERS = {\n    'alt': (ɵ0$3),\n    'control': (ɵ1),\n    'meta': (ɵ2),\n    'shift': (ɵ3)\n};\n/**\n * \\@publicApi\n * A browser plug-in that provides support for handling of key events in Angular.\n */\nclass KeyEventsPlugin extends EventManagerPlugin {\n    /**\n     * Initializes an instance of the browser plug-in.\n     * @param {?} doc The document in which key events will be detected.\n     */\n    constructor(doc) {\n        super(doc);\n    }\n    /**\n     * Reports whether a named key event is supported.\n     * @param {?} eventName The event name to query.\n     * @return {?} True if the named key event is supported.\n     */\n    supports(eventName) {\n        return KeyEventsPlugin.parseEventName(eventName) != null;\n    }\n    /**\n     * Registers a handler for a specific element and key event.\n     * @param {?} element The HTML element to receive event notifications.\n     * @param {?} eventName The name of the key event to listen for.\n     * @param {?} handler A function to call when the notification occurs. Receives the\n     * event object as an argument.\n     * @return {?} The key event that was registered.\n     */\n    addEventListener(element, eventName, handler) {\n        /** @type {?} */\n        const parsedEvent = (/** @type {?} */ (KeyEventsPlugin.parseEventName(eventName)));\n        /** @type {?} */\n        const outsideHandler = KeyEventsPlugin.eventCallback(parsedEvent['fullKey'], handler, this.manager.getZone());\n        return this.manager.getZone().runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            return ɵgetDOM().onAndCancel(element, parsedEvent['domEventName'], outsideHandler);\n        }));\n    }\n    /**\n     * @param {?} eventName\n     * @return {?}\n     */\n    static parseEventName(eventName) {\n        /** @type {?} */\n        const parts = eventName.toLowerCase().split('.');\n        /** @type {?} */\n        const domEventName = parts.shift();\n        if ((parts.length === 0) || !(domEventName === 'keydown' || domEventName === 'keyup')) {\n            return null;\n        }\n        /** @type {?} */\n        const key = KeyEventsPlugin._normalizeKey((/** @type {?} */ (parts.pop())));\n        /** @type {?} */\n        let fullKey = '';\n        MODIFIER_KEYS.forEach((/**\n         * @param {?} modifierName\n         * @return {?}\n         */\n        modifierName => {\n            /** @type {?} */\n            const index = parts.indexOf(modifierName);\n            if (index > -1) {\n                parts.splice(index, 1);\n                fullKey += modifierName + '.';\n            }\n        }));\n        fullKey += key;\n        if (parts.length != 0 || key.length === 0) {\n            // returning null instead of throwing to let another plugin process the event\n            return null;\n        }\n        /** @type {?} */\n        const result = {};\n        result['domEventName'] = domEventName;\n        result['fullKey'] = fullKey;\n        return result;\n    }\n    /**\n     * @param {?} event\n     * @return {?}\n     */\n    static getEventFullKey(event) {\n        /** @type {?} */\n        let fullKey = '';\n        /** @type {?} */\n        let key = getEventKey(event);\n        key = key.toLowerCase();\n        if (key === ' ') {\n            key = 'space'; // for readability\n        }\n        else if (key === '.') {\n            key = 'dot'; // because '.' is used as a separator in event names\n        }\n        MODIFIER_KEYS.forEach((/**\n         * @param {?} modifierName\n         * @return {?}\n         */\n        modifierName => {\n            if (modifierName != key) {\n                /** @type {?} */\n                const modifierGetter = MODIFIER_KEY_GETTERS[modifierName];\n                if (modifierGetter(event)) {\n                    fullKey += modifierName + '.';\n                }\n            }\n        }));\n        fullKey += key;\n        return fullKey;\n    }\n    /**\n     * Configures a handler callback for a key event.\n     * @param {?} fullKey The event name that combines all simultaneous keystrokes.\n     * @param {?} handler The function that responds to the key event.\n     * @param {?} zone The zone in which the event occurred.\n     * @return {?} A callback function.\n     */\n    static eventCallback(fullKey, handler, zone) {\n        return (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event /** TODO #9100 */) => {\n            if (KeyEventsPlugin.getEventFullKey(event) === fullKey) {\n                zone.runGuarded((/**\n                 * @return {?}\n                 */\n                () => handler(event)));\n            }\n        });\n    }\n    /**\n     * \\@internal\n     * @param {?} keyName\n     * @return {?}\n     */\n    static _normalizeKey(keyName) {\n        // TODO: switch to a Map if the mapping grows too much\n        switch (keyName) {\n            case 'esc':\n                return 'escape';\n            default:\n                return keyName;\n        }\n    }\n}\nKeyEventsPlugin.ɵfac = function KeyEventsPlugin_Factory(t) { return new (t || KeyEventsPlugin)(ɵngcc0.ɵɵinject(DOCUMENT)); };\nKeyEventsPlugin.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: KeyEventsPlugin, factory: KeyEventsPlugin.ɵfac });\n/** @nocollapse */\nKeyEventsPlugin.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(KeyEventsPlugin, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\n/**\n * @param {?} event\n * @return {?}\n */\nfunction getEventKey(event) {\n    /** @type {?} */\n    let key = event.key;\n    if (key == null) {\n        key = event.keyIdentifier;\n        // keyIdentifier is defined in the old draft of DOM Level 3 Events implemented by Chrome and\n        // Safari cf\n        // http://www.w3.org/TR/2007/WD-DOM-Level-3-Events-20071221/events.html#Events-KeyboardEvents-Interfaces\n        if (key == null) {\n            return 'Unidentified';\n        }\n        if (key.startsWith('U+')) {\n            key = String.fromCharCode(parseInt(key.substring(2), 16));\n            if (event.location === DOM_KEY_LOCATION_NUMPAD && _chromeNumKeyPadMap.hasOwnProperty(key)) {\n                // There is a bug in Chrome for numeric keypad keys:\n                // https://code.google.com/p/chromium/issues/detail?id=155654\n                // 1, 2, 3 ... are reported as A, B, C ...\n                key = ((/** @type {?} */ (_chromeNumKeyPadMap)))[key];\n            }\n        }\n    }\n    return _keyMap[key] || key;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/security/dom_sanitization_service.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Marker interface for a value that's safe to use in a particular context.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeValue() { }\n/**\n * Marker interface for a value that's safe to use as HTML.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeHtml() { }\n/**\n * Marker interface for a value that's safe to use as style (CSS).\n *\n * \\@publicApi\n * @record\n */\nfunction SafeStyle() { }\n/**\n * Marker interface for a value that's safe to use as JavaScript.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeScript() { }\n/**\n * Marker interface for a value that's safe to use as a URL linking to a document.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeUrl() { }\n/**\n * Marker interface for a value that's safe to use as a URL to load executable code from.\n *\n * \\@publicApi\n * @record\n */\nfunction SafeResourceUrl() { }\n/**\n * DomSanitizer helps preventing Cross Site Scripting Security bugs (XSS) by sanitizing\n * values to be safe to use in the different DOM contexts.\n *\n * For example, when binding a URL in an `<a [href]=\"someValue\">` hyperlink, `someValue` will be\n * sanitized so that an attacker cannot inject e.g. a `javascript:` URL that would execute code on\n * the website.\n *\n * In specific situations, it might be necessary to disable sanitization, for example if the\n * application genuinely needs to produce a `javascript:` style link with a dynamic value in it.\n * Users can bypass security by constructing a value with one of the `bypassSecurityTrust...`\n * methods, and then binding to that value from the template.\n *\n * These situations should be very rare, and extraordinary care must be taken to avoid creating a\n * Cross Site Scripting (XSS) security bug!\n *\n * When using `bypassSecurityTrust...`, make sure to call the method as early as possible and as\n * close as possible to the source of the value, to make it easy to verify no security bug is\n * created by its use.\n *\n * It is not required (and not recommended) to bypass security if the value is safe, e.g. a URL that\n * does not start with a suspicious protocol, or an HTML snippet that does not contain dangerous\n * code. The sanitizer leaves safe values intact.\n *\n * \\@security Calling any of the `bypassSecurityTrust...` APIs disables Angular's built-in\n * sanitization for the value passed in. Carefully check and audit all values and code paths going\n * into this call. Make sure any user data is appropriately escaped for this security context.\n * For more detail, see the [Security Guide](http://g.co/ng/security).\n *\n * \\@publicApi\n * @abstract\n */\nclass DomSanitizer {\n}\nDomSanitizer.ɵfac = function DomSanitizer_Factory(t) { return new (t || DomSanitizer)(); };\n/** @nocollapse */ DomSanitizer.ɵprov = ɵɵdefineInjectable({ factory: function DomSanitizer_Factory() { return ɵɵinject(DomSanitizerImpl); }, token: DomSanitizer, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DomSanitizer, [{\n        type: Injectable,\n        args: [{ providedIn: 'root', useExisting: forwardRef(( /**\n                             * @return {?}\n                             */() => DomSanitizerImpl)) }]\n    }], null, null); })();\nif (false) {\n    /**\n     * Sanitizes a value for use in the given SecurityContext.\n     *\n     * If value is trusted for the context, this method will unwrap the contained safe value and use\n     * it directly. Otherwise, value will be sanitized to be safe in the given context, for example\n     * by replacing URLs that have an unsafe protocol part (such as `javascript:`). The implementation\n     * is responsible to make sure that the value can definitely be safely used in the given context.\n     * @abstract\n     * @param {?} context\n     * @param {?} value\n     * @return {?}\n     */\n    DomSanitizer.prototype.sanitize = function (context, value) { };\n    /**\n     * Bypass security and trust the given value to be safe HTML. Only use this when the bound HTML\n     * is unsafe (e.g. contains `<script>` tags) and the code should be executed. The sanitizer will\n     * leave safe HTML intact, so in most situations this method should not be used.\n     *\n     * **WARNING:** calling this method with untrusted user data exposes your application to XSS\n     * security risks!\n     * @abstract\n     * @param {?} value\n     * @return {?}\n     */\n    DomSanitizer.prototype.bypassSecurityTrustHtml = function (value) { };\n    /**\n     * Bypass security and trust the given value to be safe style value (CSS).\n     *\n     * **WARNING:** calling this method with untrusted user data exposes your application to XSS\n     * security risks!\n     * @abstract\n     * @param {?} value\n     * @return {?}\n     */\n    DomSanitizer.prototype.bypassSecurityTrustStyle = function (value) { };\n    /**\n     * Bypass security and trust the given value to be safe JavaScript.\n     *\n     * **WARNING:** calling this method with untrusted user data exposes your application to XSS\n     * security risks!\n     * @abstract\n     * @param {?} value\n     * @return {?}\n     */\n    DomSanitizer.prototype.bypassSecurityTrustScript = function (value) { };\n    /**\n     * Bypass security and trust the given value to be a safe style URL, i.e. a value that can be used\n     * in hyperlinks or `<img src>`.\n     *\n     * **WARNING:** calling this method with untrusted user data exposes your application to XSS\n     * security risks!\n     * @abstract\n     * @param {?} value\n     * @return {?}\n     */\n    DomSanitizer.prototype.bypassSecurityTrustUrl = function (value) { };\n    /**\n     * Bypass security and trust the given value to be a safe resource URL, i.e. a location that may\n     * be used to load executable code from, like `<script src>`, or `<iframe src>`.\n     *\n     * **WARNING:** calling this method with untrusted user data exposes your application to XSS\n     * security risks!\n     * @abstract\n     * @param {?} value\n     * @return {?}\n     */\n    DomSanitizer.prototype.bypassSecurityTrustResourceUrl = function (value) { };\n}\n/**\n * @param {?} injector\n * @return {?}\n */\nfunction domSanitizerImplFactory(injector) {\n    return new DomSanitizerImpl(injector.get(DOCUMENT));\n}\nclass DomSanitizerImpl extends DomSanitizer {\n    /**\n     * @param {?} _doc\n     */\n    constructor(_doc) {\n        super();\n        this._doc = _doc;\n    }\n    /**\n     * @param {?} ctx\n     * @param {?} value\n     * @return {?}\n     */\n    sanitize(ctx, value) {\n        if (value == null)\n            return null;\n        switch (ctx) {\n            case SecurityContext.NONE:\n                return (/** @type {?} */ (value));\n            case SecurityContext.HTML:\n                if (ɵallowSanitizationBypassAndThrow(value, \"HTML\" /* Html */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                return ɵ_sanitizeHtml(this._doc, String(value));\n            case SecurityContext.STYLE:\n                if (ɵallowSanitizationBypassAndThrow(value, \"Style\" /* Style */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                return ɵ_sanitizeStyle((/** @type {?} */ (value)));\n            case SecurityContext.SCRIPT:\n                if (ɵallowSanitizationBypassAndThrow(value, \"Script\" /* Script */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                throw new Error('unsafe value used in a script context');\n            case SecurityContext.URL:\n                /** @type {?} */\n                const type = ɵgetSanitizationBypassType(value);\n                if (ɵallowSanitizationBypassAndThrow(value, \"URL\" /* Url */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                return ɵ_sanitizeUrl(String(value));\n            case SecurityContext.RESOURCE_URL:\n                if (ɵallowSanitizationBypassAndThrow(value, \"ResourceURL\" /* ResourceUrl */)) {\n                    return ɵunwrapSafeValue(value);\n                }\n                throw new Error('unsafe value used in a resource URL context (see http://g.co/ng/security#xss)');\n            default:\n                throw new Error(`Unexpected SecurityContext ${ctx} (see http://g.co/ng/security#xss)`);\n        }\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    bypassSecurityTrustHtml(value) {\n        return ɵbypassSanitizationTrustHtml(value);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    bypassSecurityTrustStyle(value) {\n        return ɵbypassSanitizationTrustStyle(value);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    bypassSecurityTrustScript(value) {\n        return ɵbypassSanitizationTrustScript(value);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    bypassSecurityTrustUrl(value) {\n        return ɵbypassSanitizationTrustUrl(value);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    bypassSecurityTrustResourceUrl(value) {\n        return ɵbypassSanitizationTrustResourceUrl(value);\n    }\n}\nDomSanitizerImpl.ɵfac = function DomSanitizerImpl_Factory(t) { return new (t || DomSanitizerImpl)(ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nDomSanitizerImpl.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ DomSanitizerImpl.ɵprov = ɵɵdefineInjectable({ factory: function DomSanitizerImpl_Factory() { return domSanitizerImplFactory(ɵɵinject(INJECTOR)); }, token: DomSanitizerImpl, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DomSanitizerImpl, [{\n        type: Injectable,\n        args: [{ providedIn: 'root', useFactory: domSanitizerImplFactory, deps: [Injector] }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DomSanitizerImpl.prototype._doc;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @return {?}\n */\nfunction initDomAdapter() {\n    BrowserDomAdapter.makeCurrent();\n    BrowserGetTestability.init();\n}\n/**\n * @return {?}\n */\nfunction errorHandler() {\n    return new ErrorHandler();\n}\n/**\n * @return {?}\n */\nfunction _document() {\n    // Tell ivy about the global document\n    ɵsetDocument(document);\n    return document;\n}\nconst ɵ0$4 = ɵPLATFORM_BROWSER_ID;\n/** @type {?} */\nconst INTERNAL_BROWSER_PLATFORM_PROVIDERS = [\n    { provide: PLATFORM_ID, useValue: ɵ0$4 },\n    { provide: PLATFORM_INITIALIZER, useValue: initDomAdapter, multi: true },\n    { provide: DOCUMENT, useFactory: _document, deps: [] },\n];\n/** @type {?} */\nconst BROWSER_SANITIZATION_PROVIDERS__PRE_R3__ = [\n    { provide: Sanitizer, useExisting: DomSanitizer },\n    { provide: DomSanitizer, useClass: DomSanitizerImpl, deps: [DOCUMENT] },\n];\n/** @type {?} */\nconst BROWSER_SANITIZATION_PROVIDERS__POST_R3__ = [];\n/**\n * \\@security Replacing built-in sanitization providers exposes the application to XSS risks.\n * Attacker-controlled data introduced by an unsanitized provider could expose your\n * application to XSS risks. For more detail, see the [Security Guide](http://g.co/ng/security).\n * \\@publicApi\n * @type {?}\n */\nconst BROWSER_SANITIZATION_PROVIDERS = BROWSER_SANITIZATION_PROVIDERS__POST_R3__;\n/**\n * \\@publicApi\n * @type {?}\n */\nconst platformBrowser = createPlatformFactory(platformCore, 'browser', INTERNAL_BROWSER_PLATFORM_PROVIDERS);\n/** @type {?} */\nconst BROWSER_MODULE_PROVIDERS = [\n    BROWSER_SANITIZATION_PROVIDERS,\n    { provide: ɵINJECTOR_SCOPE, useValue: 'root' },\n    { provide: ErrorHandler, useFactory: errorHandler, deps: [] },\n    {\n        provide: EVENT_MANAGER_PLUGINS,\n        useClass: DomEventsPlugin,\n        multi: true,\n        deps: [DOCUMENT, NgZone, PLATFORM_ID]\n    },\n    { provide: EVENT_MANAGER_PLUGINS, useClass: KeyEventsPlugin, multi: true, deps: [DOCUMENT] },\n    HAMMER_PROVIDERS,\n    {\n        provide: DomRendererFactory2,\n        useClass: DomRendererFactory2,\n        deps: [EventManager, DomSharedStylesHost, APP_ID]\n    },\n    { provide: RendererFactory2, useExisting: DomRendererFactory2 },\n    { provide: SharedStylesHost, useExisting: DomSharedStylesHost },\n    { provide: DomSharedStylesHost, useClass: DomSharedStylesHost, deps: [DOCUMENT] },\n    { provide: Testability, useClass: Testability, deps: [NgZone] },\n    { provide: EventManager, useClass: EventManager, deps: [EVENT_MANAGER_PLUGINS, NgZone] },\n    ELEMENT_PROBE_PROVIDERS,\n];\n/**\n * Exports required infrastructure for all Angular apps.\n * Included by default in all Angular apps created with the CLI\n * `new` command.\n * Re-exports `CommonModule` and `ApplicationModule`, making their\n * exports and providers available to all apps.\n *\n * \\@publicApi\n */\nclass BrowserModule {\n    /**\n     * @param {?} parentModule\n     */\n    constructor(parentModule) {\n        if (parentModule) {\n            throw new Error(`BrowserModule has already been loaded. If you need access to common directives such as NgIf and NgFor from a lazy loaded module, import CommonModule instead.`);\n        }\n    }\n    /**\n     * Configures a browser-based app to transition from a server-rendered app, if\n     * one is present on the page.\n     *\n     * @param {?} params An object containing an identifier for the app to transition.\n     * The ID must match between the client and server versions of the app.\n     * @return {?} The reconfigured `BrowserModule` to import into the app's root `AppModule`.\n     */\n    static withServerTransition(params) {\n        return {\n            ngModule: BrowserModule,\n            providers: [\n                { provide: APP_ID, useValue: params.appId },\n                { provide: TRANSITION_ID, useExisting: APP_ID },\n                SERVER_TRANSITION_PROVIDERS,\n            ],\n        };\n    }\n}\nBrowserModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: BrowserModule });\nBrowserModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function BrowserModule_Factory(t) { return new (t || BrowserModule)(ɵngcc0.ɵɵinject(BrowserModule, 12)); }, providers: BROWSER_MODULE_PROVIDERS, imports: [CommonModule, ApplicationModule] });\n/** @nocollapse */\nBrowserModule.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Optional }, { type: SkipSelf }, { type: Inject, args: [BrowserModule,] }] }\n];\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(BrowserModule, { exports: function () { return [CommonModule, ApplicationModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BrowserModule, [{\n        type: NgModule,\n        args: [{ providers: BROWSER_MODULE_PROVIDERS, exports: [CommonModule, ApplicationModule] }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: SkipSelf\n            }, {\n                type: Inject,\n                args: [BrowserModule]\n            }] }]; }, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/meta.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Factory to create Meta service.\n * @return {?}\n */\nfunction createMeta() {\n    return new Meta(ɵɵinject(DOCUMENT));\n}\n/**\n * A service that can be used to get and add meta tags.\n *\n * \\@publicApi\n */\nclass Meta {\n    /**\n     * @param {?} _doc\n     */\n    constructor(_doc) {\n        this._doc = _doc;\n        this._dom = ɵgetDOM();\n    }\n    /**\n     * @param {?} tag\n     * @param {?=} forceCreation\n     * @return {?}\n     */\n    addTag(tag, forceCreation = false) {\n        if (!tag)\n            return null;\n        return this._getOrCreateElement(tag, forceCreation);\n    }\n    /**\n     * @param {?} tags\n     * @param {?=} forceCreation\n     * @return {?}\n     */\n    addTags(tags, forceCreation = false) {\n        if (!tags)\n            return [];\n        return tags.reduce((/**\n         * @param {?} result\n         * @param {?} tag\n         * @return {?}\n         */\n        (result, tag) => {\n            if (tag) {\n                result.push(this._getOrCreateElement(tag, forceCreation));\n            }\n            return result;\n        }), []);\n    }\n    /**\n     * @param {?} attrSelector\n     * @return {?}\n     */\n    getTag(attrSelector) {\n        if (!attrSelector)\n            return null;\n        return this._doc.querySelector(`meta[${attrSelector}]`) || null;\n    }\n    /**\n     * @param {?} attrSelector\n     * @return {?}\n     */\n    getTags(attrSelector) {\n        if (!attrSelector)\n            return [];\n        /** @type {?} */\n        const list /*NodeList*/ = this._doc.querySelectorAll(`meta[${attrSelector}]`);\n        return list ? [].slice.call(list) : [];\n    }\n    /**\n     * @param {?} tag\n     * @param {?=} selector\n     * @return {?}\n     */\n    updateTag(tag, selector) {\n        if (!tag)\n            return null;\n        selector = selector || this._parseSelector(tag);\n        /** @type {?} */\n        const meta = (/** @type {?} */ (this.getTag(selector)));\n        if (meta) {\n            return this._setMetaElementAttributes(tag, meta);\n        }\n        return this._getOrCreateElement(tag, true);\n    }\n    /**\n     * @param {?} attrSelector\n     * @return {?}\n     */\n    removeTag(attrSelector) {\n        this.removeTagElement((/** @type {?} */ (this.getTag(attrSelector))));\n    }\n    /**\n     * @param {?} meta\n     * @return {?}\n     */\n    removeTagElement(meta) {\n        if (meta) {\n            this._dom.remove(meta);\n        }\n    }\n    /**\n     * @private\n     * @param {?} meta\n     * @param {?=} forceCreation\n     * @return {?}\n     */\n    _getOrCreateElement(meta, forceCreation = false) {\n        if (!forceCreation) {\n            /** @type {?} */\n            const selector = this._parseSelector(meta);\n            /** @type {?} */\n            const elem = (/** @type {?} */ (this.getTag(selector)));\n            // It's allowed to have multiple elements with the same name so it's not enough to\n            // just check that element with the same name already present on the page. We also need to\n            // check if element has tag attributes\n            if (elem && this._containsAttributes(meta, elem))\n                return elem;\n        }\n        /** @type {?} */\n        const element = (/** @type {?} */ (this._dom.createElement('meta')));\n        this._setMetaElementAttributes(meta, element);\n        /** @type {?} */\n        const head = this._doc.getElementsByTagName('head')[0];\n        head.appendChild(element);\n        return element;\n    }\n    /**\n     * @private\n     * @param {?} tag\n     * @param {?} el\n     * @return {?}\n     */\n    _setMetaElementAttributes(tag, el) {\n        Object.keys(tag).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        (prop) => el.setAttribute(prop, tag[prop])));\n        return el;\n    }\n    /**\n     * @private\n     * @param {?} tag\n     * @return {?}\n     */\n    _parseSelector(tag) {\n        /** @type {?} */\n        const attr = tag.name ? 'name' : 'property';\n        return `${attr}=\"${tag[attr]}\"`;\n    }\n    /**\n     * @private\n     * @param {?} tag\n     * @param {?} elem\n     * @return {?}\n     */\n    _containsAttributes(tag, elem) {\n        return Object.keys(tag).every((/**\n         * @param {?} key\n         * @return {?}\n         */\n        (key) => elem.getAttribute(key) === tag[key]));\n    }\n}\nMeta.ɵfac = function Meta_Factory(t) { return new (t || Meta)(ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nMeta.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ Meta.ɵprov = ɵɵdefineInjectable({ factory: createMeta, token: Meta, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Meta, [{\n        type: Injectable,\n        args: [{ providedIn: 'root', useFactory: createMeta, deps: [] }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    Meta.prototype._dom;\n    /**\n     * @type {?}\n     * @private\n     */\n    Meta.prototype._doc;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/title.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Factory to create Title service.\n * @return {?}\n */\nfunction createTitle() {\n    return new Title(ɵɵinject(DOCUMENT));\n}\n/**\n * A service that can be used to get and set the title of a current HTML document.\n *\n * Since an Angular application can't be bootstrapped on the entire HTML document (`<html>` tag)\n * it is not possible to bind to the `text` property of the `HTMLTitleElement` elements\n * (representing the `<title>` tag). Instead, this service can be used to set and get the current\n * title value.\n *\n * \\@publicApi\n */\nclass Title {\n    /**\n     * @param {?} _doc\n     */\n    constructor(_doc) {\n        this._doc = _doc;\n    }\n    /**\n     * Get the title of the current HTML document.\n     * @return {?}\n     */\n    getTitle() {\n        return this._doc.title;\n    }\n    /**\n     * Set the title of the current HTML document.\n     * @param {?} newTitle\n     * @return {?}\n     */\n    setTitle(newTitle) {\n        this._doc.title = newTitle || '';\n    }\n}\nTitle.ɵfac = function Title_Factory(t) { return new (t || Title)(ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nTitle.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ Title.ɵprov = ɵɵdefineInjectable({ factory: createTitle, token: Title, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(Title, [{\n        type: Injectable,\n        args: [{ providedIn: 'root', useFactory: createTitle, deps: [] }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    Title.prototype._doc;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/tools/browser.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst win = typeof window !== 'undefined' && window || (/** @type {?} */ ({}));\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/tools/common_tools.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass ChangeDetectionPerfRecord {\n    /**\n     * @param {?} msPerTick\n     * @param {?} numTicks\n     */\n    constructor(msPerTick, numTicks) {\n        this.msPerTick = msPerTick;\n        this.numTicks = numTicks;\n    }\n}\nif (false) {\n    /** @type {?} */\n    ChangeDetectionPerfRecord.prototype.msPerTick;\n    /** @type {?} */\n    ChangeDetectionPerfRecord.prototype.numTicks;\n}\n/**\n * Entry point for all Angular profiling-related debug tools. This object\n * corresponds to the `ng.profiler` in the dev console.\n */\nclass AngularProfiler {\n    /**\n     * @param {?} ref\n     */\n    constructor(ref) {\n        this.appRef = ref.injector.get(ApplicationRef);\n    }\n    // tslint:disable:no-console\n    /**\n     * Exercises change detection in a loop and then prints the average amount of\n     * time in milliseconds how long a single round of change detection takes for\n     * the current state of the UI. It runs a minimum of 5 rounds for a minimum\n     * of 500 milliseconds.\n     *\n     * Optionally, a user may pass a `config` parameter containing a map of\n     * options. Supported options are:\n     *\n     * `record` (boolean) - causes the profiler to record a CPU profile while\n     * it exercises the change detector. Example:\n     *\n     * ```\n     * ng.profiler.timeChangeDetection({record: true})\n     * ```\n     * @param {?} config\n     * @return {?}\n     */\n    timeChangeDetection(config) {\n        /** @type {?} */\n        const record = config && config['record'];\n        /** @type {?} */\n        const profileName = 'Change Detection';\n        // Profiler is not available in Android browsers, nor in IE 9 without dev tools opened\n        /** @type {?} */\n        const isProfilerAvailable = win.console.profile != null;\n        if (record && isProfilerAvailable) {\n            win.console.profile(profileName);\n        }\n        /** @type {?} */\n        const start = ɵgetDOM().performanceNow();\n        /** @type {?} */\n        let numTicks = 0;\n        while (numTicks < 5 || (ɵgetDOM().performanceNow() - start) < 500) {\n            this.appRef.tick();\n            numTicks++;\n        }\n        /** @type {?} */\n        const end = ɵgetDOM().performanceNow();\n        if (record && isProfilerAvailable) {\n            win.console.profileEnd(profileName);\n        }\n        /** @type {?} */\n        const msPerTick = (end - start) / numTicks;\n        win.console.log(`ran ${numTicks} change detection cycles`);\n        win.console.log(`${msPerTick.toFixed(2)} ms per check`);\n        return new ChangeDetectionPerfRecord(msPerTick, numTicks);\n    }\n}\nif (false) {\n    /** @type {?} */\n    AngularProfiler.prototype.appRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/tools/tools.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst PROFILER_GLOBAL_NAME = 'profiler';\n/**\n * Enabled Angular debug tools that are accessible via your browser's\n * developer console.\n *\n * Usage:\n *\n * 1. Open developer console (e.g. in Chrome Ctrl + Shift + j)\n * 1. Type `ng.` (usually the console will show auto-complete suggestion)\n * 1. Try the change detection profiler `ng.profiler.timeChangeDetection()`\n *    then hit Enter.\n *\n * \\@publicApi\n * @template T\n * @param {?} ref\n * @return {?}\n */\nfunction enableDebugTools(ref) {\n    exportNgVar(PROFILER_GLOBAL_NAME, new AngularProfiler(ref));\n    return ref;\n}\n/**\n * Disables Angular tools.\n *\n * \\@publicApi\n * @return {?}\n */\nfunction disableDebugTools() {\n    exportNgVar(PROFILER_GLOBAL_NAME, null);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/browser/transfer_state.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @param {?} text\n * @return {?}\n */\nfunction escapeHtml(text) {\n    /** @type {?} */\n    const escapedText = {\n        '&': '&a;',\n        '\"': '&q;',\n        '\\'': '&s;',\n        '<': '&l;',\n        '>': '&g;',\n    };\n    return text.replace(/[&\"'<>]/g, (/**\n     * @param {?} s\n     * @return {?}\n     */\n    s => escapedText[s]));\n}\n/**\n * @param {?} text\n * @return {?}\n */\nfunction unescapeHtml(text) {\n    /** @type {?} */\n    const unescapedText = {\n        '&a;': '&',\n        '&q;': '\"',\n        '&s;': '\\'',\n        '&l;': '<',\n        '&g;': '>',\n    };\n    return text.replace(/&[^;]+;/g, (/**\n     * @param {?} s\n     * @return {?}\n     */\n    s => unescapedText[s]));\n}\n/**\n * Create a `StateKey<T>` that can be used to store value of type T with `TransferState`.\n *\n * Example:\n *\n * ```\n * const COUNTER_KEY = makeStateKey<number>('counter');\n * let value = 10;\n *\n * transferState.set(COUNTER_KEY, value);\n * ```\n *\n * \\@publicApi\n * @template T\n * @param {?} key\n * @return {?}\n */\nfunction makeStateKey(key) {\n    return (/** @type {?} */ (key));\n}\n/**\n * A key value store that is transferred from the application on the server side to the application\n * on the client side.\n *\n * `TransferState` will be available as an injectable token. To use it import\n * `ServerTransferStateModule` on the server and `BrowserTransferStateModule` on the client.\n *\n * The values in the store are serialized/deserialized using JSON.stringify/JSON.parse. So only\n * boolean, number, string, null and non-class objects will be serialized and deserialzied in a\n * non-lossy manner.\n *\n * \\@publicApi\n */\nclass TransferState {\n    constructor() {\n        this.store = {};\n        this.onSerializeCallbacks = {};\n    }\n    /**\n     * \\@internal\n     * @param {?} initState\n     * @return {?}\n     */\n    static init(initState) {\n        /** @type {?} */\n        const transferState = new TransferState();\n        transferState.store = initState;\n        return transferState;\n    }\n    /**\n     * Get the value corresponding to a key. Return `defaultValue` if key is not found.\n     * @template T\n     * @param {?} key\n     * @param {?} defaultValue\n     * @return {?}\n     */\n    get(key, defaultValue) {\n        return this.store[key] !== undefined ? (/** @type {?} */ (this.store[key])) : defaultValue;\n    }\n    /**\n     * Set the value corresponding to a key.\n     * @template T\n     * @param {?} key\n     * @param {?} value\n     * @return {?}\n     */\n    set(key, value) {\n        this.store[key] = value;\n    }\n    /**\n     * Remove a key from the store.\n     * @template T\n     * @param {?} key\n     * @return {?}\n     */\n    remove(key) {\n        delete this.store[key];\n    }\n    /**\n     * Test whether a key exists in the store.\n     * @template T\n     * @param {?} key\n     * @return {?}\n     */\n    hasKey(key) {\n        return this.store.hasOwnProperty(key);\n    }\n    /**\n     * Register a callback to provide the value for a key when `toJson` is called.\n     * @template T\n     * @param {?} key\n     * @param {?} callback\n     * @return {?}\n     */\n    onSerialize(key, callback) {\n        this.onSerializeCallbacks[key] = callback;\n    }\n    /**\n     * Serialize the current state of the store to JSON.\n     * @return {?}\n     */\n    toJson() {\n        // Call the onSerialize callbacks and put those values into the store.\n        for (const key in this.onSerializeCallbacks) {\n            if (this.onSerializeCallbacks.hasOwnProperty(key)) {\n                try {\n                    this.store[key] = this.onSerializeCallbacks[key]();\n                }\n                catch (e) {\n                    console.warn('Exception in onSerialize callback: ', e);\n                }\n            }\n        }\n        return JSON.stringify(this.store);\n    }\n}\nTransferState.ɵfac = function TransferState_Factory(t) { return new (t || TransferState)(); };\nTransferState.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: TransferState, factory: TransferState.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(TransferState, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    TransferState.prototype.store;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransferState.prototype.onSerializeCallbacks;\n}\n/**\n * @param {?} doc\n * @param {?} appId\n * @return {?}\n */\nfunction initTransferState(doc, appId) {\n    // Locate the script tag with the JSON data transferred from the server.\n    // The id of the script tag is set to the Angular appId + 'state'.\n    /** @type {?} */\n    const script = doc.getElementById(appId + '-state');\n    /** @type {?} */\n    let initialState = {};\n    if (script && script.textContent) {\n        try {\n            initialState = JSON.parse(unescapeHtml(script.textContent));\n        }\n        catch (e) {\n            console.warn('Exception while restoring TransferState for app ' + appId, e);\n        }\n    }\n    return TransferState.init(initialState);\n}\n/**\n * NgModule to install on the client side while using the `TransferState` to transfer state from\n * server to client.\n *\n * \\@publicApi\n */\nclass BrowserTransferStateModule {\n}\nBrowserTransferStateModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: BrowserTransferStateModule });\nBrowserTransferStateModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function BrowserTransferStateModule_Factory(t) { return new (t || BrowserTransferStateModule)(); }, providers: [{ provide: TransferState, useFactory: initTransferState, deps: [DOCUMENT, APP_ID] }] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BrowserTransferStateModule, [{\n        type: NgModule,\n        args: [{\n                providers: [{ provide: TransferState, useFactory: initTransferState, deps: [DOCUMENT, APP_ID] }]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/dom/debug/by.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Predicates for use with {\\@link DebugElement}'s query functions.\n *\n * \\@publicApi\n */\nclass By {\n    /**\n     * Match all nodes.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * {\\@example platform-browser/dom/debug/ts/by/by.ts region='by_all'}\n     * @return {?}\n     */\n    static all() {\n        return (/**\n         * @return {?}\n         */\n        () => true);\n    }\n    /**\n     * Match elements by the given CSS selector.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * {\\@example platform-browser/dom/debug/ts/by/by.ts region='by_css'}\n     * @param {?} selector\n     * @return {?}\n     */\n    static css(selector) {\n        return (/**\n         * @param {?} debugElement\n         * @return {?}\n         */\n        (debugElement) => {\n            return debugElement.nativeElement != null ?\n                elementMatches(debugElement.nativeElement, selector) :\n                false;\n        });\n    }\n    /**\n     * Match nodes that have the given directive present.\n     *\n     * \\@usageNotes\n     * ### Example\n     *\n     * {\\@example platform-browser/dom/debug/ts/by/by.ts region='by_directive'}\n     * @param {?} type\n     * @return {?}\n     */\n    static directive(type) {\n        return (/**\n         * @param {?} debugNode\n         * @return {?}\n         */\n        (debugNode) => (/** @type {?} */ (debugNode.providerTokens)).indexOf(type) !== -1);\n    }\n}\n/**\n * @param {?} n\n * @param {?} selector\n * @return {?}\n */\nfunction elementMatches(n, selector) {\n    if (ɵgetDOM().isElementNode(n)) {\n        return n.matches && n.matches(selector) ||\n            n.msMatchesSelector && n.msMatchesSelector(selector) ||\n            n.webkitMatchesSelector && n.webkitMatchesSelector(selector);\n    }\n    return false;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/private_export.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/version.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n * @type {?}\n */\nconst VERSION = new Version('9.1.9');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/src/platform-browser.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BrowserModule, BrowserTransferStateModule, By, DomSanitizer, EVENT_MANAGER_PLUGINS, EventManager, HAMMER_GESTURE_CONFIG, HAMMER_LOADER, HammerGestureConfig, HammerModule, Meta, Title, TransferState, VERSION, disableDebugTools, enableDebugTools, makeStateKey, platformBrowser, BROWSER_SANITIZATION_PROVIDERS as ɵBROWSER_SANITIZATION_PROVIDERS, BROWSER_SANITIZATION_PROVIDERS__POST_R3__ as ɵBROWSER_SANITIZATION_PROVIDERS__POST_R3__, BrowserDomAdapter as ɵBrowserDomAdapter, BrowserGetTestability as ɵBrowserGetTestability, DomEventsPlugin as ɵDomEventsPlugin, DomRendererFactory2 as ɵDomRendererFactory2, DomSanitizerImpl as ɵDomSanitizerImpl, DomSharedStylesHost as ɵDomSharedStylesHost, ELEMENT_PROBE_PROVIDERS as ɵELEMENT_PROBE_PROVIDERS, ELEMENT_PROBE_PROVIDERS__POST_R3__ as ɵELEMENT_PROBE_PROVIDERS__POST_R3__, HAMMER_PROVIDERS__POST_R3__ as ɵHAMMER_PROVIDERS__POST_R3__, HammerGesturesPlugin as ɵHammerGesturesPlugin, INTERNAL_BROWSER_PLATFORM_PROVIDERS as ɵINTERNAL_BROWSER_PLATFORM_PROVIDERS, KeyEventsPlugin as ɵKeyEventsPlugin, NAMESPACE_URIS as ɵNAMESPACE_URIS, SharedStylesHost as ɵSharedStylesHost, TRANSITION_ID as ɵTRANSITION_ID, errorHandler as ɵangular_packages_platform_browser_platform_browser_a, _document as ɵangular_packages_platform_browser_platform_browser_b, BROWSER_MODULE_PROVIDERS as ɵangular_packages_platform_browser_platform_browser_c, createMeta as ɵangular_packages_platform_browser_platform_browser_d, createTitle as ɵangular_packages_platform_browser_platform_browser_e, initTransferState as ɵangular_packages_platform_browser_platform_browser_f, EventManagerPlugin as ɵangular_packages_platform_browser_platform_browser_g, HAMMER_PROVIDERS__PRE_R3__ as ɵangular_packages_platform_browser_platform_browser_h, HAMMER_PROVIDERS as ɵangular_packages_platform_browser_platform_browser_i, domSanitizerImplFactory as ɵangular_packages_platform_browser_platform_browser_j, appInitializerFactory as ɵangular_packages_platform_browser_platform_browser_k, SERVER_TRANSITION_PROVIDERS as ɵangular_packages_platform_browser_platform_browser_l, _createNgProbeR2 as ɵangular_packages_platform_browser_platform_browser_m, ELEMENT_PROBE_PROVIDERS__PRE_R3__ as ɵangular_packages_platform_browser_platform_browser_n, GenericBrowserDomAdapter as ɵangular_packages_platform_browser_platform_browser_o, escapeHtml as ɵescapeHtml, flattenStyles as ɵflattenStyles, initDomAdapter as ɵinitDomAdapter, shimContentAttribute as ɵshimContentAttribute, shimHostAttribute as ɵshimHostAttribute };\n\n//# sourceMappingURL=platform-browser.js.map","import { Version } from '@angular/core';\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** Current version of the Angular Component Development Kit. */\nconst VERSION = new Version('9.2.4');\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nexport { VERSION };\n//# sourceMappingURL=cdk.js.map\n","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/src/animation_builder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An injectable service that produces an animation sequence programmatically within an\n * Angular component or directive.\n * Provided by the `BrowserAnimationsModule` or `NoopAnimationsModule`.\n *\n * \\@usageNotes\n *\n * To use this service, add it to your component or directive as a dependency.\n * The service is instantiated along with your component.\n *\n * Apps do not typically need to create their own animation players, but if you\n * do need to, follow these steps:\n *\n * 1. Use the `build()` method to create a programmatic animation using the\n * `animate()` function. The method returns an `AnimationFactory` instance.\n *\n * 2. Use the factory object to create an `AnimationPlayer` and attach it to a DOM element.\n *\n * 3. Use the player object to control the animation programmatically.\n *\n * For example:\n *\n * ```ts\n * // import the service from BrowserAnimationsModule\n * import {AnimationBuilder} from '\\@angular/animations';\n * // require the service as a dependency\n * class MyCmp {\n *   constructor(private _builder: AnimationBuilder) {}\n *\n *   makeAnimation(element: any) {\n *     // first define a reusable animation\n *     const myAnimation = this._builder.build([\n *       style({ width: 0 }),\n *       animate(1000, style({ width: '100px' }))\n *     ]);\n *\n *     // use the returned factory object to create a player\n *     const player = myAnimation.create(element);\n *\n *     player.play();\n *   }\n * }\n * ```\n *\n * \\@publicApi\n * @abstract\n */\nclass AnimationBuilder {\n}\nif (false) {\n    /**\n     * Builds a factory for producing a defined animation.\n     * @see `animate()`\n     * @abstract\n     * @param {?} animation A reusable animation definition.\n     * @return {?} A factory object that can create a player for the defined animation.\n     */\n    AnimationBuilder.prototype.build = function (animation) { };\n}\n/**\n * A factory object returned from the `AnimationBuilder`.`build()` method.\n *\n * \\@publicApi\n * @abstract\n */\nclass AnimationFactory {\n}\nif (false) {\n    /**\n     * Creates an `AnimationPlayer` instance for the reusable animation defined by\n     * the `AnimationBuilder`.`build()` method that created this factory.\n     * Attaches the new player a DOM element.\n     * @abstract\n     * @param {?} element The DOM element to which to attach the animation.\n     * @param {?=} options A set of options that can include a time delay and\n     * additional developer-defined parameters.\n     * @return {?}\n     */\n    AnimationFactory.prototype.create = function (element, options) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/src/animation_metadata.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Represents a set of CSS styles for use in an animation style.\n * @record\n */\nfunction ɵStyleData() { }\n/** @enum {number} */\nconst AnimationMetadataType = {\n    /**\n     * Associates a named animation state with a set of CSS styles.\n     * See `state()`\n     */\n    State: 0,\n    /**\n     * Data for a transition from one animation state to another.\n     * See `transition()`\n     */\n    Transition: 1,\n    /**\n     * Contains a set of animation steps.\n     * See `sequence()`\n     */\n    Sequence: 2,\n    /**\n     * Contains a set of animation steps.\n     * See `{@link animations/group group()}`\n     */\n    Group: 3,\n    /**\n     * Contains an animation step.\n     * See `animate()`\n     */\n    Animate: 4,\n    /**\n     * Contains a set of animation steps.\n     * See `keyframes()`\n     */\n    Keyframes: 5,\n    /**\n     * Contains a set of CSS property-value pairs into a named style.\n     * See `style()`\n     */\n    Style: 6,\n    /**\n     * Associates an animation with an entry trigger that can be attached to an element.\n     * See `trigger()`\n     */\n    Trigger: 7,\n    /**\n     * Contains a re-usable animation.\n     * See `animation()`\n     */\n    Reference: 8,\n    /**\n     * Contains data to use in executing child animations returned by a query.\n     * See `animateChild()`\n     */\n    AnimateChild: 9,\n    /**\n     * Contains animation parameters for a re-usable animation.\n     * See `useAnimation()`\n     */\n    AnimateRef: 10,\n    /**\n     * Contains child-animation query data.\n     * See `query()`\n     */\n    Query: 11,\n    /**\n     * Contains data for staggering an animation sequence.\n     * See `stagger()`\n     */\n    Stagger: 12,\n};\n/**\n * Specifies automatic styling.\n *\n * \\@publicApi\n * @type {?}\n */\nconst AUTO_STYLE = '*';\n/**\n * Base for animation data structures.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationMetadata() { }\nif (false) {\n    /** @type {?} */\n    AnimationMetadata.prototype.type;\n}\n/**\n * Contains an animation trigger. Instantiated and returned by the\n * `trigger()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationTriggerMetadata() { }\nif (false) {\n    /**\n     * The trigger name, used to associate it with an element. Unique within the component.\n     * @type {?}\n     */\n    AnimationTriggerMetadata.prototype.name;\n    /**\n     * An animation definition object, containing an array of state and transition declarations.\n     * @type {?}\n     */\n    AnimationTriggerMetadata.prototype.definitions;\n    /**\n     * An options object containing a delay and\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation. Default delay is 0.\n     * @type {?}\n     */\n    AnimationTriggerMetadata.prototype.options;\n}\n/**\n * Encapsulates an animation state by associating a state name with a set of CSS styles.\n * Instantiated and returned by the `state()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationStateMetadata() { }\nif (false) {\n    /**\n     * The state name, unique within the component.\n     * @type {?}\n     */\n    AnimationStateMetadata.prototype.name;\n    /**\n     *  The CSS styles associated with this state.\n     * @type {?}\n     */\n    AnimationStateMetadata.prototype.styles;\n    /**\n     * An options object containing\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation.\n     * @type {?|undefined}\n     */\n    AnimationStateMetadata.prototype.options;\n}\n/**\n * Encapsulates an animation transition. Instantiated and returned by the\n * `transition()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationTransitionMetadata() { }\nif (false) {\n    /**\n     * An expression that describes a state change.\n     * @type {?}\n     */\n    AnimationTransitionMetadata.prototype.expr;\n    /**\n     * One or more animation objects to which this transition applies.\n     * @type {?}\n     */\n    AnimationTransitionMetadata.prototype.animation;\n    /**\n     * An options object containing a delay and\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation. Default delay is 0.\n     * @type {?}\n     */\n    AnimationTransitionMetadata.prototype.options;\n}\n/**\n * Encapsulates a reusable animation, which is a collection of individual animation steps.\n * Instantiated and returned by the `animation()` function, and\n * passed to the `useAnimation()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationReferenceMetadata() { }\nif (false) {\n    /**\n     *  One or more animation step objects.\n     * @type {?}\n     */\n    AnimationReferenceMetadata.prototype.animation;\n    /**\n     * An options object containing a delay and\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation. Default delay is 0.\n     * @type {?}\n     */\n    AnimationReferenceMetadata.prototype.options;\n}\n/**\n * Encapsulates an animation query. Instantiated and returned by\n * the `query()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationQueryMetadata() { }\nif (false) {\n    /**\n     *  The CSS selector for this query.\n     * @type {?}\n     */\n    AnimationQueryMetadata.prototype.selector;\n    /**\n     * One or more animation step objects.\n     * @type {?}\n     */\n    AnimationQueryMetadata.prototype.animation;\n    /**\n     * A query options object.\n     * @type {?}\n     */\n    AnimationQueryMetadata.prototype.options;\n}\n/**\n * Encapsulates a keyframes sequence. Instantiated and returned by\n * the `keyframes()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationKeyframesSequenceMetadata() { }\nif (false) {\n    /**\n     * An array of animation styles.\n     * @type {?}\n     */\n    AnimationKeyframesSequenceMetadata.prototype.steps;\n}\n/**\n * Encapsulates an animation style. Instantiated and returned by\n * the `style()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationStyleMetadata() { }\nif (false) {\n    /**\n     * A set of CSS style properties.\n     * @type {?}\n     */\n    AnimationStyleMetadata.prototype.styles;\n    /**\n     * A percentage of the total animate time at which the style is to be applied.\n     * @type {?}\n     */\n    AnimationStyleMetadata.prototype.offset;\n}\n/**\n * Encapsulates an animation step. Instantiated and returned by\n * the `animate()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationAnimateMetadata() { }\nif (false) {\n    /**\n     * The timing data for the step.\n     * @type {?}\n     */\n    AnimationAnimateMetadata.prototype.timings;\n    /**\n     * A set of styles used in the step.\n     * @type {?}\n     */\n    AnimationAnimateMetadata.prototype.styles;\n}\n/**\n * Encapsulates a child animation, that can be run explicitly when the parent is run.\n * Instantiated and returned by the `animateChild` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationAnimateChildMetadata() { }\nif (false) {\n    /**\n     * An options object containing a delay and\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation. Default delay is 0.\n     * @type {?}\n     */\n    AnimationAnimateChildMetadata.prototype.options;\n}\n/**\n * Encapsulates a reusable animation.\n * Instantiated and returned by the `useAnimation()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationAnimateRefMetadata() { }\nif (false) {\n    /**\n     * An animation reference object.\n     * @type {?}\n     */\n    AnimationAnimateRefMetadata.prototype.animation;\n    /**\n     * An options object containing a delay and\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation. Default delay is 0.\n     * @type {?}\n     */\n    AnimationAnimateRefMetadata.prototype.options;\n}\n/**\n * Encapsulates an animation sequence.\n * Instantiated and returned by the `sequence()` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationSequenceMetadata() { }\nif (false) {\n    /**\n     *  An array of animation step objects.\n     * @type {?}\n     */\n    AnimationSequenceMetadata.prototype.steps;\n    /**\n     * An options object containing a delay and\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation. Default delay is 0.\n     * @type {?}\n     */\n    AnimationSequenceMetadata.prototype.options;\n}\n/**\n * Encapsulates an animation group.\n * Instantiated and returned by the `{\\@link animations/group group()}` function.\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationGroupMetadata() { }\nif (false) {\n    /**\n     * One or more animation or style steps that form this group.\n     * @type {?}\n     */\n    AnimationGroupMetadata.prototype.steps;\n    /**\n     * An options object containing a delay and\n     * developer-defined parameters that provide styling defaults and\n     * can be overridden on invocation. Default delay is 0.\n     * @type {?}\n     */\n    AnimationGroupMetadata.prototype.options;\n}\n/**\n * Encapsulates parameters for staggering the start times of a set of animation steps.\n * Instantiated and returned by the `stagger()` function.\n *\n * \\@publicApi\n *\n * @record\n */\nfunction AnimationStaggerMetadata() { }\nif (false) {\n    /**\n     * The timing data for the steps.\n     * @type {?}\n     */\n    AnimationStaggerMetadata.prototype.timings;\n    /**\n     * One or more animation steps.\n     * @type {?}\n     */\n    AnimationStaggerMetadata.prototype.animation;\n}\n/**\n * Creates a named animation trigger, containing a  list of `state()`\n * and `transition()` entries to be evaluated when the expression\n * bound to the trigger changes.\n *\n * \\@usageNotes\n * Define an animation trigger in the `animations` section of `\\@Component` metadata.\n * In the template, reference the trigger by name and bind it to a trigger expression that\n * evaluates to a defined animation state, using the following format:\n *\n * `[\\@triggerName]=\"expression\"`\n *\n * Animation trigger bindings convert all values to strings, and then match the\n * previous and current values against any linked transitions.\n * Booleans can be specified as `1` or `true` and `0` or `false`.\n *\n * ### Usage Example\n *\n * The following example creates an animation trigger reference based on the provided\n * name value.\n * The provided animation value is expected to be an array consisting of state and\n * transition declarations.\n *\n * ```typescript\n * \\@Component({\n *   selector: \"my-component\",\n *   templateUrl: \"my-component-tpl.html\",\n *   animations: [\n *     trigger(\"myAnimationTrigger\", [\n *       state(...),\n *       state(...),\n *       transition(...),\n *       transition(...)\n *     ])\n *   ]\n * })\n * class MyComponent {\n *   myStatusExp = \"something\";\n * }\n * ```\n *\n * The template associated with this component makes use of the defined trigger\n * by binding to an element within its template code.\n *\n * ```html\n * <!-- somewhere inside of my-component-tpl.html -->\n * <div [\\@myAnimationTrigger]=\"myStatusExp\">...</div>\n * ```\n *\n * ### Using an inline function\n * The `transition` animation method also supports reading an inline function which can decide\n * if its associated animation should be run.\n *\n * ```typescript\n * // this method is run each time the `myAnimationTrigger` trigger value changes.\n * function myInlineMatcherFn(fromState: string, toState: string, element: any, params: {[key:\n * string]: any}): boolean {\n *   // notice that `element` and `params` are also available here\n *   return toState == 'yes-please-animate';\n * }\n *  /\n *   selector: 'my-component',\n *   templateUrl: 'my-component-tpl.html',\n *   animations: [\n *     trigger('myAnimationTrigger', [\n *       transition(myInlineMatcherFn, [\n *         // the animation sequence code\n *       ]),\n *     ])\n *   ]\n * })\n * class MyComponent {\n *   myStatusExp = \"yes-please-animate\";\n * }\n * ```\n *\n * ### Disabling Animations\n * When true, the special animation control binding `\\@.disabled` binding prevents\n * all animations from rendering.\n * Place the  `\\@.disabled` binding on an element to disable\n * animations on the element itself, as well as any inner animation triggers\n * within the element.\n *\n * The following example shows how to use this feature:\n *\n * ```typescript /\n *   selector: 'my-component',\n *   template: `\n *     <div [\\@.disabled]=\"isDisabled\">\n *       <div [\\@childAnimation]=\"exp\"></div>\n *     </div>\n *   `,\n *   animations: [\n *     trigger(\"childAnimation\", [\n *       // ...\n *     ])\n *   ]\n * })\n * class MyComponent {\n *   isDisabled = true;\n *   exp = '...';\n * }\n * ```\n *\n * When `\\@.disabled` is true, it prevents the `\\@childAnimation` trigger from animating,\n * along with any inner animations.\n *\n * ### Disable animations application-wide\n * When an area of the template is set to have animations disabled,\n * **all** inner components have their animations disabled as well.\n * This means that you can disable all animations for an app\n * by placing a host binding set on `\\@.disabled` on the topmost Angular component.\n *\n * ```typescript\n * import {Component, HostBinding} from '\\@angular/core';\n *  /\n *   selector: 'app-component',\n *   templateUrl: 'app.component.html',\n * })\n * class AppComponent {\n * \\@HostBinding('@.disabled')\n *   public animationsDisabled = true;\n * }\n * ```\n *\n * ### Overriding disablement of inner animations\n * Despite inner animations being disabled, a parent animation can `query()`\n * for inner elements located in disabled areas of the template and still animate\n * them if needed. This is also the case for when a sub animation is\n * queried by a parent and then later animated using `animateChild()`.\n *\n * ### Detecting when an animation is disabled\n * If a region of the DOM (or the entire application) has its animations disabled, the animation\n * trigger callbacks still fire, but for zero seconds. When the callback fires, it provides\n * an instance of an `AnimationEvent`. If animations are disabled,\n * the `.disabled` flag on the event is true.\n *\n * \\@publicApi\n * @param {?} name An identifying string.\n * @param {?} definitions  An animation definition object, containing an array of `state()`\n * and `transition()` declarations.\n *\n * @return {?} An object that encapsulates the trigger data.\n *\n */\nfunction trigger(name, definitions) {\n    return { type: 7 /* Trigger */, name, definitions, options: {} };\n}\n/**\n * Defines an animation step that combines styling information with timing information.\n *\n * \\@usageNotes\n * Call within an animation `sequence()`, `{\\@link animations/group group()}`, or\n * `transition()` call to specify an animation step\n * that applies given style data to the parent animation for a given amount of time.\n *\n * ### Syntax Examples\n * **Timing examples**\n *\n * The following examples show various `timings` specifications.\n * - `animate(500)` : Duration is 500 milliseconds.\n * - `animate(\"1s\")` : Duration is 1000 milliseconds.\n * - `animate(\"100ms 0.5s\")` : Duration is 100 milliseconds, delay is 500 milliseconds.\n * - `animate(\"5s ease-in\")` : Duration is 5000 milliseconds, easing in.\n * - `animate(\"5s 10ms cubic-bezier(.17,.67,.88,.1)\")` : Duration is 5000 milliseconds, delay is 10\n * milliseconds, easing according to a bezier curve.\n *\n * **Style examples**\n *\n * The following example calls `style()` to set a single CSS style.\n * ```typescript\n * animate(500, style({ background: \"red\" }))\n * ```\n * The following example calls `keyframes()` to set a CSS style\n * to different values for successive keyframes.\n * ```typescript\n * animate(500, keyframes(\n *  [\n *   style({ background: \"blue\" })),\n *   style({ background: \"red\" }))\n *  ])\n * ```\n *\n * \\@publicApi\n * @param {?} timings Sets `AnimateTimings` for the parent animation.\n * A string in the format \"duration [delay] [easing]\".\n *  - Duration and delay are expressed as a number and optional time unit,\n * such as \"1s\" or \"10ms\" for one second and 10 milliseconds, respectively.\n * The default unit is milliseconds.\n *  - The easing value controls how the animation accelerates and decelerates\n * during its runtime. Value is one of  `ease`, `ease-in`, `ease-out`,\n * `ease-in-out`, or a `cubic-bezier()` function call.\n * If not supplied, no easing is applied.\n *\n * For example, the string \"1s 100ms ease-out\" specifies a duration of\n * 1000 milliseconds, and delay of 100 ms, and the \"ease-out\" easing style,\n * which decelerates near the end of the duration.\n * @param {?=} styles Sets AnimationStyles for the parent animation.\n * A function call to either `style()` or `keyframes()`\n * that returns a collection of CSS style entries to be applied to the parent animation.\n * When null, uses the styles from the destination state.\n * This is useful when describing an animation step that will complete an animation;\n * see \"Animating to the final state\" in `transitions()`.\n * @return {?} An object that encapsulates the animation step.\n *\n */\nfunction animate(timings, styles = null) {\n    return { type: 4 /* Animate */, styles, timings };\n}\n/**\n * \\@description Defines a list of animation steps to be run in parallel.\n *\n * \\@usageNotes\n * Grouped animations are useful when a series of styles must be\n * animated at different starting times and closed off at different ending times.\n *\n * When called within a `sequence()` or a\n * `transition()` call, does not continue to the next\n * instruction until all of the inner animation steps have completed.\n *\n * \\@publicApi\n * @param {?} steps An array of animation step objects.\n * - When steps are defined by `style()` or `animate()`\n * function calls, each call within the group is executed instantly.\n * - To specify offset styles to be applied at a later time, define steps with\n * `keyframes()`, or use `animate()` calls with a delay value.\n * For example:\n *\n * ```typescript\n * group([\n *   animate(\"1s\", style({ background: \"black\" })),\n *   animate(\"2s\", style({ color: \"white\" }))\n * ])\n * ```\n *\n * @param {?=} options An options object containing a delay and\n * developer-defined parameters that provide styling defaults and\n * can be overridden on invocation.\n *\n * @return {?} An object that encapsulates the group data.\n *\n */\nfunction group(steps, options = null) {\n    return { type: 3 /* Group */, steps, options };\n}\n/**\n * Defines a list of animation steps to be run sequentially, one by one.\n *\n * \\@usageNotes\n * When you pass an array of steps to a\n * `transition()` call, the steps run sequentially by default.\n * Compare this to the `{\\@link animations/group group()}` call, which runs animation steps in\n * parallel.\n *\n * When a sequence is used within a `{\\@link animations/group group()}` or a `transition()` call,\n * execution continues to the next instruction only after each of the inner animation\n * steps have completed.\n *\n * \\@publicApi\n *\n * @param {?} steps An array of animation step objects.\n * - Steps defined by `style()` calls apply the styling data immediately.\n * - Steps defined by `animate()` calls apply the styling data over time\n *   as specified by the timing data.\n *\n * ```typescript\n * sequence([\n *   style({ opacity: 0 }),\n *   animate(\"1s\", style({ opacity: 1 }))\n * ])\n * ```\n *\n * @param {?=} options An options object containing a delay and\n * developer-defined parameters that provide styling defaults and\n * can be overridden on invocation.\n *\n * @return {?} An object that encapsulates the sequence data.\n *\n */\nfunction sequence(steps, options = null) {\n    return { type: 2 /* Sequence */, steps, options };\n}\n/**\n * Declares a key/value object containing CSS properties/styles that\n * can then be used for an animation `state`, within an animation `sequence`,\n * or as styling data for calls to `animate()` and `keyframes()`.\n *\n * \\@usageNotes\n * The following examples create animation styles that collect a set of\n * CSS property values:\n *\n * ```typescript\n * // string values for CSS properties\n * style({ background: \"red\", color: \"blue\" })\n *\n * // numerical pixel values\n * style({ width: 100, height: 0 })\n * ```\n *\n * The following example uses auto-styling to allow a component to animate from\n * a height of 0 up to the height of the parent element:\n *\n * ```\n * style({ height: 0 }),\n * animate(\"1s\", style({ height: \"*\" }))\n * ```\n *\n * \\@publicApi\n *\n * @param {?} tokens A set of CSS styles or HTML styles associated with an animation state.\n * The value can be any of the following:\n * - A key-value style pair associating a CSS property with a value.\n * - An array of key-value style pairs.\n * - An asterisk (*), to use auto-styling, where styles are derived from the element\n * being animated and applied to the animation when it starts.\n *\n * Auto-styling can be used to define a state that depends on layout or other\n * environmental factors.\n *\n * @return {?} An object that encapsulates the style data.\n *\n */\nfunction style(tokens) {\n    return { type: 6 /* Style */, styles: tokens, offset: null };\n}\n/**\n * Declares an animation state within a trigger attached to an element.\n *\n * \\@usageNotes\n * Use the `trigger()` function to register states to an animation trigger.\n * Use the `transition()` function to animate between states.\n * When a state is active within a component, its associated styles persist on the element,\n * even when the animation ends.\n *\n * \\@publicApi\n *\n * @param {?} name One or more names for the defined state in a comma-separated string.\n * The following reserved state names can be supplied to define a style for specific use\n * cases:\n *\n * - `void` You can associate styles with this name to be used when\n * the element is detached from the application. For example, when an `ngIf` evaluates\n * to false, the state of the associated element is void.\n *  - `*` (asterisk) Indicates the default state. You can associate styles with this name\n * to be used as the fallback when the state that is being animated is not declared\n * within the trigger.\n *\n * @param {?} styles A set of CSS styles associated with this state, created using the\n * `style()` function.\n * This set of styles persists on the element once the state has been reached.\n * @param {?=} options Parameters that can be passed to the state when it is invoked.\n * 0 or more key-value pairs.\n * @return {?} An object that encapsulates the new state data.\n *\n */\nfunction state(name, styles, options) {\n    return { type: 0 /* State */, name, styles, options };\n}\n/**\n * Defines a set of animation styles, associating each style with an optional `offset` value.\n *\n * \\@usageNotes\n * Use with the `animate()` call. Instead of applying animations\n * from the current state\n * to the destination state, keyframes describe how each style entry is applied and at what point\n * within the animation arc.\n * Compare [CSS Keyframe Animations](https://www.w3schools.com/css/css3_animations.asp).\n *\n * ### Usage\n *\n * In the following example, the offset values describe\n * when each `backgroundColor` value is applied. The color is red at the start, and changes to\n * blue when 20% of the total time has elapsed.\n *\n * ```typescript\n * // the provided offset values\n * animate(\"5s\", keyframes([\n *   style({ backgroundColor: \"red\", offset: 0 }),\n *   style({ backgroundColor: \"blue\", offset: 0.2 }),\n *   style({ backgroundColor: \"orange\", offset: 0.3 }),\n *   style({ backgroundColor: \"black\", offset: 1 })\n * ]))\n * ```\n *\n * If there are no `offset` values specified in the style entries, the offsets\n * are calculated automatically.\n *\n * ```typescript\n * animate(\"5s\", keyframes([\n *   style({ backgroundColor: \"red\" }) // offset = 0\n *   style({ backgroundColor: \"blue\" }) // offset = 0.33\n *   style({ backgroundColor: \"orange\" }) // offset = 0.66\n *   style({ backgroundColor: \"black\" }) // offset = 1\n * ]))\n * ```\n * \\@publicApi\n * @param {?} steps A set of animation styles with optional offset data.\n * The optional `offset` value for a style specifies a percentage of the total animation\n * time at which that style is applied.\n * @return {?} An object that encapsulates the keyframes data.\n *\n */\nfunction keyframes(steps) {\n    return { type: 5 /* Keyframes */, steps };\n}\n/**\n * Declares an animation transition as a sequence of animation steps to run when a given\n * condition is satisfied. The condition is a Boolean expression or function that compares\n * the previous and current animation states, and returns true if this transition should occur.\n * When the state criteria of a defined transition are met, the associated animation is\n * triggered.\n *\n * \\@usageNotes\n * The template associated with a component binds an animation trigger to an element.\n *\n * ```HTML\n * <!-- somewhere inside of my-component-tpl.html -->\n * <div [\\@myAnimationTrigger]=\"myStatusExp\">...</div>\n * ```\n *\n * All transitions are defined within an animation trigger,\n * along with named states that the transitions change to and from.\n *\n * ```typescript\n * trigger(\"myAnimationTrigger\", [\n *  // define states\n *  state(\"on\", style({ background: \"green\" })),\n *  state(\"off\", style({ background: \"grey\" })),\n *  ...]\n * ```\n *\n * Note that when you call the `sequence()` function within a `{\\@link animations/group group()}`\n * or a `transition()` call, execution does not continue to the next instruction\n * until each of the inner animation steps have completed.\n *\n * ### Syntax examples\n *\n * The following examples define transitions between the two defined states (and default states),\n * using various options:\n *\n * ```typescript\n * // Transition occurs when the state value\n * // bound to \"myAnimationTrigger\" changes from \"on\" to \"off\"\n * transition(\"on => off\", animate(500))\n * // Run the same animation for both directions\n * transition(\"on <=> off\", animate(500))\n * // Define multiple state-change pairs separated by commas\n * transition(\"on => off, off => void\", animate(500))\n * ```\n *\n * ### Special values for state-change expressions\n *\n * - Catch-all state change for when an element is inserted into the page and the\n * destination state is unknown:\n *\n * ```typescript\n * transition(\"void => *\", [\n *  style({ opacity: 0 }),\n *  animate(500)\n *  ])\n * ```\n *\n * - Capture a state change between any states:\n *\n *  `transition(\"* => *\", animate(\"1s 0s\"))`\n *\n * - Entry and exit transitions:\n *\n * ```typescript\n * transition(\":enter\", [\n *   style({ opacity: 0 }),\n *   animate(500, style({ opacity: 1 }))\n *   ]),\n * transition(\":leave\", [\n *   animate(500, style({ opacity: 0 }))\n *   ])\n * ```\n *\n * - Use `:increment` and `:decrement` to initiate transitions:\n *\n * ```typescript\n * transition(\":increment\", group([\n *  query(':enter', [\n *     style({ left: '100%' }),\n *     animate('0.5s ease-out', style('*'))\n *   ]),\n *  query(':leave', [\n *     animate('0.5s ease-out', style({ left: '-100%' }))\n *  ])\n * ]))\n *\n * transition(\":decrement\", group([\n *  query(':enter', [\n *     style({ left: '100%' }),\n *     animate('0.5s ease-out', style('*'))\n *   ]),\n *  query(':leave', [\n *     animate('0.5s ease-out', style({ left: '-100%' }))\n *  ])\n * ]))\n * ```\n *\n * ### State-change functions\n *\n * Here is an example of a `fromState` specified as a state-change function that invokes an\n * animation when true:\n *\n * ```typescript\n * transition((fromState, toState) =>\n *  {\n *   return fromState == \"off\" && toState == \"on\";\n *  },\n *  animate(\"1s 0s\"))\n * ```\n *\n * ### Animating to the final state\n *\n * If the final step in a transition is a call to `animate()` that uses a timing value\n * with no style data, that step is automatically considered the final animation arc,\n * for the element to reach the final state. Angular automatically adds or removes\n * CSS styles to ensure that the element is in the correct final state.\n *\n * The following example defines a transition that starts by hiding the element,\n * then makes sure that it animates properly to whatever state is currently active for trigger:\n *\n * ```typescript\n * transition(\"void => *\", [\n *   style({ opacity: 0 }),\n *   animate(500)\n *  ])\n * ```\n * ### Boolean value matching\n * If a trigger binding value is a Boolean, it can be matched using a transition expression\n * that compares true and false or 1 and 0. For example:\n *\n * ```\n * // in the template\n * <div [\\@openClose]=\"open ? true : false\">...</div>\n * // in the component metadata\n * trigger('openClose', [\n *   state('true', style({ height: '*' })),\n *   state('false', style({ height: '0px' })),\n *   transition('false <=> true', animate(500))\n * ])\n * ```\n *\n * \\@publicApi\n *\n * @param {?} stateChangeExpr A Boolean expression or function that compares the previous and current\n * animation states, and returns true if this transition should occur. Note that  \"true\" and \"false\"\n * match 1 and 0, respectively. An expression is evaluated each time a state change occurs in the\n * animation trigger element.\n * The animation steps run when the expression evaluates to true.\n *\n * - A state-change string takes the form \"state1 => state2\", where each side is a defined animation\n * state, or an asterix (*) to refer to a dynamic start or end state.\n *   - The expression string can contain multiple comma-separated statements;\n * for example \"state1 => state2, state3 => state4\".\n *   - Special values `:enter` and `:leave` initiate a transition on the entry and exit states,\n * equivalent to  \"void => *\"  and \"* => void\".\n *   - Special values `:increment` and `:decrement` initiate a transition when a numeric value has\n * increased or decreased in value.\n * - A function is executed each time a state change occurs in the animation trigger element.\n * The animation steps run when the function returns true.\n *\n * @param {?} steps One or more animation objects, as returned by the `animate()` or\n * `sequence()` function, that form a transformation from one state to another.\n * A sequence is used by default when you pass an array.\n * @param {?=} options An options object that can contain a delay value for the start of the animation,\n * and additional developer-defined parameters. Provided values for additional parameters are used\n * as defaults, and override values can be passed to the caller on invocation.\n * @return {?} An object that encapsulates the transition data.\n *\n */\nfunction transition(stateChangeExpr, steps, options = null) {\n    return { type: 1 /* Transition */, expr: stateChangeExpr, animation: steps, options };\n}\n/**\n * Produces a reusable animation that can be invoked in another animation or sequence,\n * by calling the `useAnimation()` function.\n *\n * \\@usageNotes\n * The following example defines a reusable animation, providing some default parameter\n * values.\n *\n * ```typescript\n * var fadeAnimation = animation([\n *   style({ opacity: '{{ start }}' }),\n *   animate('{{ time }}',\n *   style({ opacity: '{{ end }}'}))\n *   ],\n *   { params: { time: '1000ms', start: 0, end: 1 }});\n * ```\n *\n * The following invokes the defined animation with a call to `useAnimation()`,\n * passing in override parameter values.\n *\n * ```js\n * useAnimation(fadeAnimation, {\n *   params: {\n *     time: '2s',\n *     start: 1,\n *     end: 0\n *   }\n * })\n * ```\n *\n * If any of the passed-in parameter values are missing from this call,\n * the default values are used. If one or more parameter values are missing before a step is\n * animated, `useAnimation()` throws an error.\n *\n * \\@publicApi\n * @param {?} steps One or more animation objects, as returned by the `animate()`\n * or `sequence()` function, that form a transformation from one state to another.\n * A sequence is used by default when you pass an array.\n * @param {?=} options An options object that can contain a delay value for the start of the\n * animation, and additional developer-defined parameters.\n * Provided values for additional parameters are used as defaults,\n * and override values can be passed to the caller on invocation.\n * @return {?} An object that encapsulates the animation data.\n *\n */\nfunction animation(steps, options = null) {\n    return { type: 8 /* Reference */, animation: steps, options };\n}\n/**\n * Executes a queried inner animation element within an animation sequence.\n *\n * \\@usageNotes\n * Each time an animation is triggered in Angular, the parent animation\n * has priority and any child animations are blocked. In order\n * for a child animation to run, the parent animation must query each of the elements\n * containing child animations, and run them using this function.\n *\n * Note that this feature is designed to be used with `query()` and it will only work\n * with animations that are assigned using the Angular animation library. CSS keyframes\n * and transitions are not handled by this API.\n *\n * \\@publicApi\n * @param {?=} options An options object that can contain a delay value for the start of the\n * animation, and additional override values for developer-defined parameters.\n * @return {?} An object that encapsulates the child animation data.\n *\n */\nfunction animateChild(options = null) {\n    return { type: 9 /* AnimateChild */, options };\n}\n/**\n * Starts a reusable animation that is created using the `animation()` function.\n *\n * \\@publicApi\n * @param {?} animation The reusable animation to start.\n * @param {?=} options An options object that can contain a delay value for the start of\n * the animation, and additional override values for developer-defined parameters.\n * @return {?} An object that contains the animation parameters.\n *\n */\nfunction useAnimation(animation, options = null) {\n    return { type: 10 /* AnimateRef */, animation, options };\n}\n/**\n * Finds one or more inner elements within the current element that is\n * being animated within a sequence. Use with `animate()`.\n *\n * \\@usageNotes\n * Tokens can be merged into a combined query selector string. For example:\n *\n * ```typescript\n *  query(':self, .record:enter, .record:leave, \\@subTrigger', [...])\n * ```\n *\n * The `query()` function collects multiple elements and works internally by using\n * `element.querySelectorAll`. Use the `limit` field of an options object to limit\n * the total number of items to be collected. For example:\n *\n * ```js\n * query('div', [\n *   animate(...),\n *   animate(...)\n * ], { limit: 1 })\n * ```\n *\n * By default, throws an error when zero items are found. Set the\n * `optional` flag to ignore this error. For example:\n *\n * ```js\n * query('.some-element-that-may-not-be-there', [\n *   animate(...),\n *   animate(...)\n * ], { optional: true })\n * ```\n *\n * ### Usage Example\n *\n * The following example queries for inner elements and animates them\n * individually using `animate()`.\n *\n * ```typescript\n * \\@Component({\n *   selector: 'inner',\n *   template: `\n *     <div [\\@queryAnimation]=\"exp\">\n *       <h1>Title</h1>\n *       <div class=\"content\">\n *         Blah blah blah\n *       </div>\n *     </div>\n *   `,\n *   animations: [\n *    trigger('queryAnimation', [\n *      transition('* => goAnimate', [\n *        // hide the inner elements\n *        query('h1', style({ opacity: 0 })),\n *        query('.content', style({ opacity: 0 })),\n *\n *        // animate the inner elements in, one by one\n *        query('h1', animate(1000, style({ opacity: 1 }))),\n *        query('.content', animate(1000, style({ opacity: 1 }))),\n *      ])\n *    ])\n *  ]\n * })\n * class Cmp {\n *   exp = '';\n *\n *   goAnimate() {\n *     this.exp = 'goAnimate';\n *   }\n * }\n * ```\n *\n * \\@publicApi\n * @param {?} selector The element to query, or a set of elements that contain Angular-specific\n * characteristics, specified with one or more of the following tokens.\n *  - `query(\":enter\")` or `query(\":leave\")` : Query for newly inserted/removed elements.\n *  - `query(\":animating\")` : Query all currently animating elements.\n *  - `query(\"\\@triggerName\")` : Query elements that contain an animation trigger.\n *  - `query(\"\\@*\")` : Query all elements that contain an animation triggers.\n *  - `query(\":self\")` : Include the current element into the animation sequence.\n *\n * @param {?} animation One or more animation steps to apply to the queried element or elements.\n * An array is treated as an animation sequence.\n * @param {?=} options An options object. Use the 'limit' field to limit the total number of\n * items to collect.\n * @return {?} An object that encapsulates the query data.\n *\n */\nfunction query(selector, animation, options = null) {\n    return { type: 11 /* Query */, selector, animation, options };\n}\n/**\n * Use within an animation `query()` call to issue a timing gap after\n * each queried item is animated.\n *\n * \\@usageNotes\n * In the following example, a container element wraps a list of items stamped out\n * by an `ngFor`. The container element contains an animation trigger that will later be set\n * to query for each of the inner items.\n *\n * Each time items are added, the opacity fade-in animation runs,\n * and each removed item is faded out.\n * When either of these animations occur, the stagger effect is\n * applied after each item's animation is started.\n *\n * ```html\n * <!-- list.component.html -->\n * <button (click)=\"toggle()\">Show / Hide Items</button>\n * <hr />\n * <div [\\@listAnimation]=\"items.length\">\n *   <div *ngFor=\"let item of items\">\n *     {{ item }}\n *   </div>\n * </div>\n * ```\n *\n * Here is the component code:\n *\n * ```typescript\n * import {trigger, transition, style, animate, query, stagger} from '\\@angular/animations';\n * \\@Component({\n *   templateUrl: 'list.component.html',\n *   animations: [\n *     trigger('listAnimation', [\n *     ...\n *     ])\n *   ]\n * })\n * class ListComponent {\n *   items = [];\n *\n *   showItems() {\n *     this.items = [0,1,2,3,4];\n *   }\n *\n *   hideItems() {\n *     this.items = [];\n *   }\n *\n *   toggle() {\n *     this.items.length ? this.hideItems() : this.showItems();\n *    }\n *  }\n * ```\n *\n * Here is the animation trigger code:\n *\n * ```typescript\n * trigger('listAnimation', [\n *   transition('* => *', [ // each time the binding value changes\n *     query(':leave', [\n *       stagger(100, [\n *         animate('0.5s', style({ opacity: 0 }))\n *       ])\n *     ]),\n *     query(':enter', [\n *       style({ opacity: 0 }),\n *       stagger(100, [\n *         animate('0.5s', style({ opacity: 1 }))\n *       ])\n *     ])\n *   ])\n * ])\n * ```\n *\n * \\@publicApi\n * @param {?} timings A delay value.\n * @param {?} animation One ore more animation steps.\n * @return {?} An object that encapsulates the stagger data.\n *\n */\nfunction stagger(timings, animation) {\n    return { type: 12 /* Stagger */, timings, animation };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/src/util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n * @param {?} cb\n * @return {?}\n */\nfunction scheduleMicroTask(cb) {\n    Promise.resolve(null).then(cb);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/src/players/animation_player.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Provides programmatic control of a reusable animation sequence,\n * built using the `build()` method of `AnimationBuilder`. The `build()` method\n * returns a factory, whose `create()` method instantiates and initializes this interface.\n *\n * @see `AnimationBuilder`\n * @see `AnimationFactory`\n * @see `animate()`\n *\n * \\@publicApi\n * @record\n */\nfunction AnimationPlayer() { }\nif (false) {\n    /**\n     * The parent of this player, if any.\n     * @type {?}\n     */\n    AnimationPlayer.prototype.parentPlayer;\n    /**\n     * The total run time of the animation, in milliseconds.\n     * @type {?}\n     */\n    AnimationPlayer.prototype.totalTime;\n    /**\n     * Provides a callback to invoke before the animation is destroyed.\n     * @type {?|undefined}\n     */\n    AnimationPlayer.prototype.beforeDestroy;\n    /**\n     * \\@internal\n     * Internal\n     * @type {?|undefined}\n     */\n    AnimationPlayer.prototype.triggerCallback;\n    /**\n     * \\@internal\n     * Internal\n     * @type {?|undefined}\n     */\n    AnimationPlayer.prototype.disabled;\n    /**\n     * Provides a callback to invoke when the animation finishes.\n     * @see `finish()`\n     * @param {?} fn The callback function.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.onDone = function (fn) { };\n    /**\n     * Provides a callback to invoke when the animation starts.\n     * @see `run()`\n     * @param {?} fn The callback function.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.onStart = function (fn) { };\n    /**\n     * Provides a callback to invoke after the animation is destroyed.\n     * @see `destroy()` / `beforeDestroy()`\n     * @param {?} fn The callback function.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.onDestroy = function (fn) { };\n    /**\n     * Initializes the animation.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.init = function () { };\n    /**\n     * Reports whether the animation has started.\n     * @return {?} True if the animation has started, false otherwise.\n     */\n    AnimationPlayer.prototype.hasStarted = function () { };\n    /**\n     * Runs the animation, invoking the `onStart()` callback.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.play = function () { };\n    /**\n     * Pauses the animation.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.pause = function () { };\n    /**\n     * Restarts the paused animation.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.restart = function () { };\n    /**\n     * Ends the animation, invoking the `onDone()` callback.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.finish = function () { };\n    /**\n     * Destroys the animation, after invoking the `beforeDestroy()` callback.\n     * Calls the `onDestroy()` callback when destruction is completed.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.destroy = function () { };\n    /**\n     * Resets the animation to its initial state.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.reset = function () { };\n    /**\n     * Sets the position of the animation.\n     * @param {?} position A 0-based offset into the duration, in milliseconds.\n     * @return {?}\n     */\n    AnimationPlayer.prototype.setPosition = function (position) { };\n    /**\n     * Reports the current position of the animation.\n     * @return {?} A 0-based offset into the duration, in milliseconds.\n     */\n    AnimationPlayer.prototype.getPosition = function () { };\n}\n/**\n * An empty programmatic controller for reusable animations.\n * Used internally when animations are disabled, to avoid\n * checking for the null case when an animation player is expected.\n *\n * @see `animate()`\n * @see `AnimationPlayer`\n * @see `GroupPlayer`\n *\n * \\@publicApi\n */\nclass NoopAnimationPlayer {\n    /**\n     * @param {?=} duration\n     * @param {?=} delay\n     */\n    constructor(duration = 0, delay = 0) {\n        this._onDoneFns = [];\n        this._onStartFns = [];\n        this._onDestroyFns = [];\n        this._started = false;\n        this._destroyed = false;\n        this._finished = false;\n        this.parentPlayer = null;\n        this.totalTime = duration + delay;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _onFinish() {\n        if (!this._finished) {\n            this._finished = true;\n            this._onDoneFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onDoneFns = [];\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onStart(fn) {\n        this._onStartFns.push(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDone(fn) {\n        this._onDoneFns.push(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDestroy(fn) {\n        this._onDestroyFns.push(fn);\n    }\n    /**\n     * @return {?}\n     */\n    hasStarted() {\n        return this._started;\n    }\n    /**\n     * @return {?}\n     */\n    init() { }\n    /**\n     * @return {?}\n     */\n    play() {\n        if (!this.hasStarted()) {\n            this._onStart();\n            this.triggerMicrotask();\n        }\n        this._started = true;\n    }\n    /**\n     * \\@internal\n     * @return {?}\n     */\n    triggerMicrotask() {\n        scheduleMicroTask((/**\n         * @return {?}\n         */\n        () => this._onFinish()));\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _onStart() {\n        this._onStartFns.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        this._onStartFns = [];\n    }\n    /**\n     * @return {?}\n     */\n    pause() { }\n    /**\n     * @return {?}\n     */\n    restart() { }\n    /**\n     * @return {?}\n     */\n    finish() {\n        this._onFinish();\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (!this._destroyed) {\n            this._destroyed = true;\n            if (!this.hasStarted()) {\n                this._onStart();\n            }\n            this.finish();\n            this._onDestroyFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onDestroyFns = [];\n        }\n    }\n    /**\n     * @return {?}\n     */\n    reset() { }\n    /**\n     * @param {?} position\n     * @return {?}\n     */\n    setPosition(position) { }\n    /**\n     * @return {?}\n     */\n    getPosition() {\n        return 0;\n    }\n    /**\n     * \\@internal\n     * @param {?} phaseName\n     * @return {?}\n     */\n    triggerCallback(phaseName) {\n        /** @type {?} */\n        const methods = phaseName == 'start' ? this._onStartFns : this._onDoneFns;\n        methods.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        methods.length = 0;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    NoopAnimationPlayer.prototype._onDoneFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    NoopAnimationPlayer.prototype._onStartFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    NoopAnimationPlayer.prototype._onDestroyFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    NoopAnimationPlayer.prototype._started;\n    /**\n     * @type {?}\n     * @private\n     */\n    NoopAnimationPlayer.prototype._destroyed;\n    /**\n     * @type {?}\n     * @private\n     */\n    NoopAnimationPlayer.prototype._finished;\n    /** @type {?} */\n    NoopAnimationPlayer.prototype.parentPlayer;\n    /** @type {?} */\n    NoopAnimationPlayer.prototype.totalTime;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/src/players/animation_group_player.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A programmatic controller for a group of reusable animations.\n * Used internally to control animations.\n *\n * @see `AnimationPlayer`\n * @see `{\\@link animations/group group()}`\n *\n */\nclass AnimationGroupPlayer {\n    /**\n     * @param {?} _players\n     */\n    constructor(_players) {\n        this._onDoneFns = [];\n        this._onStartFns = [];\n        this._finished = false;\n        this._started = false;\n        this._destroyed = false;\n        this._onDestroyFns = [];\n        this.parentPlayer = null;\n        this.totalTime = 0;\n        this.players = _players;\n        /** @type {?} */\n        let doneCount = 0;\n        /** @type {?} */\n        let destroyCount = 0;\n        /** @type {?} */\n        let startCount = 0;\n        /** @type {?} */\n        const total = this.players.length;\n        if (total == 0) {\n            scheduleMicroTask((/**\n             * @return {?}\n             */\n            () => this._onFinish()));\n        }\n        else {\n            this.players.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => {\n                player.onDone((/**\n                 * @return {?}\n                 */\n                () => {\n                    if (++doneCount == total) {\n                        this._onFinish();\n                    }\n                }));\n                player.onDestroy((/**\n                 * @return {?}\n                 */\n                () => {\n                    if (++destroyCount == total) {\n                        this._onDestroy();\n                    }\n                }));\n                player.onStart((/**\n                 * @return {?}\n                 */\n                () => {\n                    if (++startCount == total) {\n                        this._onStart();\n                    }\n                }));\n            }));\n        }\n        this.totalTime = this.players.reduce((/**\n         * @param {?} time\n         * @param {?} player\n         * @return {?}\n         */\n        (time, player) => Math.max(time, player.totalTime)), 0);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _onFinish() {\n        if (!this._finished) {\n            this._finished = true;\n            this._onDoneFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onDoneFns = [];\n        }\n    }\n    /**\n     * @return {?}\n     */\n    init() {\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player.init()));\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onStart(fn) {\n        this._onStartFns.push(fn);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _onStart() {\n        if (!this.hasStarted()) {\n            this._started = true;\n            this._onStartFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onStartFns = [];\n        }\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDone(fn) {\n        this._onDoneFns.push(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDestroy(fn) {\n        this._onDestroyFns.push(fn);\n    }\n    /**\n     * @return {?}\n     */\n    hasStarted() {\n        return this._started;\n    }\n    /**\n     * @return {?}\n     */\n    play() {\n        if (!this.parentPlayer) {\n            this.init();\n        }\n        this._onStart();\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player.play()));\n    }\n    /**\n     * @return {?}\n     */\n    pause() {\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player.pause()));\n    }\n    /**\n     * @return {?}\n     */\n    restart() {\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player.restart()));\n    }\n    /**\n     * @return {?}\n     */\n    finish() {\n        this._onFinish();\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player.finish()));\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this._onDestroy();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _onDestroy() {\n        if (!this._destroyed) {\n            this._destroyed = true;\n            this._onFinish();\n            this.players.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => player.destroy()));\n            this._onDestroyFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onDestroyFns = [];\n        }\n    }\n    /**\n     * @return {?}\n     */\n    reset() {\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player.reset()));\n        this._destroyed = false;\n        this._finished = false;\n        this._started = false;\n    }\n    /**\n     * @param {?} p\n     * @return {?}\n     */\n    setPosition(p) {\n        /** @type {?} */\n        const timeAtPosition = p * this.totalTime;\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            /** @type {?} */\n            const position = player.totalTime ? Math.min(1, timeAtPosition / player.totalTime) : 1;\n            player.setPosition(position);\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    getPosition() {\n        /** @type {?} */\n        let min = 0;\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            /** @type {?} */\n            const p = player.getPosition();\n            min = Math.min(p, min);\n        }));\n        return min;\n    }\n    /**\n     * @return {?}\n     */\n    beforeDestroy() {\n        this.players.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            if (player.beforeDestroy) {\n                player.beforeDestroy();\n            }\n        }));\n    }\n    /**\n     * \\@internal\n     * @param {?} phaseName\n     * @return {?}\n     */\n    triggerCallback(phaseName) {\n        /** @type {?} */\n        const methods = phaseName == 'start' ? this._onStartFns : this._onDoneFns;\n        methods.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        methods.length = 0;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationGroupPlayer.prototype._onDoneFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationGroupPlayer.prototype._onStartFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationGroupPlayer.prototype._finished;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationGroupPlayer.prototype._started;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationGroupPlayer.prototype._destroyed;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationGroupPlayer.prototype._onDestroyFns;\n    /** @type {?} */\n    AnimationGroupPlayer.prototype.parentPlayer;\n    /** @type {?} */\n    AnimationGroupPlayer.prototype.totalTime;\n    /** @type {?} */\n    AnimationGroupPlayer.prototype.players;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/src/private_export.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst ɵPRE_STYLE = '!';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/src/animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { AUTO_STYLE, AnimationBuilder, AnimationFactory, NoopAnimationPlayer, animate, animateChild, animation, group, keyframes, query, sequence, stagger, state, style, transition, trigger, useAnimation, AnimationGroupPlayer as ɵAnimationGroupPlayer, ɵPRE_STYLE };\n\n//# sourceMappingURL=animations.js.map","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { ɵAnimationGroupPlayer, NoopAnimationPlayer, AUTO_STYLE, ɵPRE_STYLE, sequence, style } from '@angular/animations';\nimport { Injectable } from '@angular/core';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/shared.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @return {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nfunction isBrowser() {\n    return (typeof window !== 'undefined' && typeof window.document !== 'undefined');\n}\n/**\n * @return {?}\n */\nfunction isNode() {\n    // Checking only for `process` isn't enough to identify whether or not we're in a Node\n    // environment, because Webpack by default will polyfill the `process`. While we can discern\n    // that Webpack polyfilled it by looking at `process.browser`, it's very Webpack-specific and\n    // might not be future-proof. Instead we look at the stringified version of `process` which\n    // is `[object process]` in Node and `[object Object]` when polyfilled.\n    return typeof process !== 'undefined' && {}.toString.call(process) === '[object process]';\n}\n/**\n * @param {?} players\n * @return {?}\n */\nfunction optimizeGroupPlayer(players) {\n    switch (players.length) {\n        case 0:\n            return new NoopAnimationPlayer();\n        case 1:\n            return players[0];\n        default:\n            return new ɵAnimationGroupPlayer(players);\n    }\n}\n/**\n * @param {?} driver\n * @param {?} normalizer\n * @param {?} element\n * @param {?} keyframes\n * @param {?=} preStyles\n * @param {?=} postStyles\n * @return {?}\n */\nfunction normalizeKeyframes(driver, normalizer, element, keyframes, preStyles = {}, postStyles = {}) {\n    /** @type {?} */\n    const errors = [];\n    /** @type {?} */\n    const normalizedKeyframes = [];\n    /** @type {?} */\n    let previousOffset = -1;\n    /** @type {?} */\n    let previousKeyframe = null;\n    keyframes.forEach((/**\n     * @param {?} kf\n     * @return {?}\n     */\n    kf => {\n        /** @type {?} */\n        const offset = (/** @type {?} */ (kf['offset']));\n        /** @type {?} */\n        const isSameOffset = offset == previousOffset;\n        /** @type {?} */\n        const normalizedKeyframe = (isSameOffset && previousKeyframe) || {};\n        Object.keys(kf).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            let normalizedProp = prop;\n            /** @type {?} */\n            let normalizedValue = kf[prop];\n            if (prop !== 'offset') {\n                normalizedProp = normalizer.normalizePropertyName(normalizedProp, errors);\n                switch (normalizedValue) {\n                    case ɵPRE_STYLE:\n                        normalizedValue = preStyles[prop];\n                        break;\n                    case AUTO_STYLE:\n                        normalizedValue = postStyles[prop];\n                        break;\n                    default:\n                        normalizedValue =\n                            normalizer.normalizeStyleValue(prop, normalizedProp, normalizedValue, errors);\n                        break;\n                }\n            }\n            normalizedKeyframe[normalizedProp] = normalizedValue;\n        }));\n        if (!isSameOffset) {\n            normalizedKeyframes.push(normalizedKeyframe);\n        }\n        previousKeyframe = normalizedKeyframe;\n        previousOffset = offset;\n    }));\n    if (errors.length) {\n        /** @type {?} */\n        const LINE_START = '\\n - ';\n        throw new Error(`Unable to animate due to the following errors:${LINE_START}${errors.join(LINE_START)}`);\n    }\n    return normalizedKeyframes;\n}\n/**\n * @param {?} player\n * @param {?} eventName\n * @param {?} event\n * @param {?} callback\n * @return {?}\n */\nfunction listenOnPlayer(player, eventName, event, callback) {\n    switch (eventName) {\n        case 'start':\n            player.onStart((/**\n             * @return {?}\n             */\n            () => callback(event && copyAnimationEvent(event, 'start', player))));\n            break;\n        case 'done':\n            player.onDone((/**\n             * @return {?}\n             */\n            () => callback(event && copyAnimationEvent(event, 'done', player))));\n            break;\n        case 'destroy':\n            player.onDestroy((/**\n             * @return {?}\n             */\n            () => callback(event && copyAnimationEvent(event, 'destroy', player))));\n            break;\n    }\n}\n/**\n * @param {?} e\n * @param {?} phaseName\n * @param {?} player\n * @return {?}\n */\nfunction copyAnimationEvent(e, phaseName, player) {\n    /** @type {?} */\n    const totalTime = player.totalTime;\n    /** @type {?} */\n    const disabled = ((/** @type {?} */ (player))).disabled ? true : false;\n    /** @type {?} */\n    const event = makeAnimationEvent(e.element, e.triggerName, e.fromState, e.toState, phaseName || e.phaseName, totalTime == undefined ? e.totalTime : totalTime, disabled);\n    /** @type {?} */\n    const data = ((/** @type {?} */ (e)))['_data'];\n    if (data != null) {\n        ((/** @type {?} */ (event)))['_data'] = data;\n    }\n    return event;\n}\n/**\n * @param {?} element\n * @param {?} triggerName\n * @param {?} fromState\n * @param {?} toState\n * @param {?=} phaseName\n * @param {?=} totalTime\n * @param {?=} disabled\n * @return {?}\n */\nfunction makeAnimationEvent(element, triggerName, fromState, toState, phaseName = '', totalTime = 0, disabled) {\n    return { element, triggerName, fromState, toState, phaseName, totalTime, disabled: !!disabled };\n}\n/**\n * @param {?} map\n * @param {?} key\n * @param {?} defaultValue\n * @return {?}\n */\nfunction getOrSetAsInMap(map, key, defaultValue) {\n    /** @type {?} */\n    let value;\n    if (map instanceof Map) {\n        value = map.get(key);\n        if (!value) {\n            map.set(key, value = defaultValue);\n        }\n    }\n    else {\n        value = map[key];\n        if (!value) {\n            value = map[key] = defaultValue;\n        }\n    }\n    return value;\n}\n/**\n * @param {?} command\n * @return {?}\n */\nfunction parseTimelineCommand(command) {\n    /** @type {?} */\n    const separatorPos = command.indexOf(':');\n    /** @type {?} */\n    const id = command.substring(1, separatorPos);\n    /** @type {?} */\n    const action = command.substr(separatorPos + 1);\n    return [id, action];\n}\n/** @type {?} */\nlet _contains = (/**\n * @param {?} elm1\n * @param {?} elm2\n * @return {?}\n */\n(elm1, elm2) => false);\nconst ɵ0 = _contains;\n/** @type {?} */\nlet _matches = (/**\n * @param {?} element\n * @param {?} selector\n * @return {?}\n */\n(element, selector) => false);\nconst ɵ1 = _matches;\n/** @type {?} */\nlet _query = (/**\n * @param {?} element\n * @param {?} selector\n * @param {?} multi\n * @return {?}\n */\n(element, selector, multi) => {\n    return [];\n});\nconst ɵ2 = _query;\n// Define utility methods for browsers and platform-server(domino) where Element\n// and utility methods exist.\n/** @type {?} */\nconst _isNode = isNode();\nif (_isNode || typeof Element !== 'undefined') {\n    // this is well supported in all browsers\n    _contains = (/**\n     * @param {?} elm1\n     * @param {?} elm2\n     * @return {?}\n     */\n    (elm1, elm2) => {\n        return (/** @type {?} */ (elm1.contains(elm2)));\n    });\n    _matches = ((/**\n     * @return {?}\n     */\n    () => {\n        if (_isNode || Element.prototype.matches) {\n            return (/**\n             * @param {?} element\n             * @param {?} selector\n             * @return {?}\n             */\n            (element, selector) => element.matches(selector));\n        }\n        else {\n            /** @type {?} */\n            const proto = (/** @type {?} */ (Element.prototype));\n            /** @type {?} */\n            const fn = proto.matchesSelector || proto.mozMatchesSelector || proto.msMatchesSelector ||\n                proto.oMatchesSelector || proto.webkitMatchesSelector;\n            if (fn) {\n                return (/**\n                 * @param {?} element\n                 * @param {?} selector\n                 * @return {?}\n                 */\n                (element, selector) => fn.apply(element, [selector]));\n            }\n            else {\n                return _matches;\n            }\n        }\n    }))();\n    _query = (/**\n     * @param {?} element\n     * @param {?} selector\n     * @param {?} multi\n     * @return {?}\n     */\n    (element, selector, multi) => {\n        /** @type {?} */\n        let results = [];\n        if (multi) {\n            results.push(...element.querySelectorAll(selector));\n        }\n        else {\n            /** @type {?} */\n            const elm = element.querySelector(selector);\n            if (elm) {\n                results.push(elm);\n            }\n        }\n        return results;\n    });\n}\n/**\n * @param {?} prop\n * @return {?}\n */\nfunction containsVendorPrefix(prop) {\n    // Webkit is the only real popular vendor prefix nowadays\n    // cc: http://shouldiprefix.com/\n    return prop.substring(1, 6) == 'ebkit'; // webkit or Webkit\n}\n/** @type {?} */\nlet _CACHED_BODY = null;\n/** @type {?} */\nlet _IS_WEBKIT = false;\n/**\n * @param {?} prop\n * @return {?}\n */\nfunction validateStyleProperty(prop) {\n    if (!_CACHED_BODY) {\n        _CACHED_BODY = getBodyNode() || {};\n        _IS_WEBKIT = (/** @type {?} */ (_CACHED_BODY)).style ? ('WebkitAppearance' in (/** @type {?} */ (_CACHED_BODY)).style) : false;\n    }\n    /** @type {?} */\n    let result = true;\n    if ((/** @type {?} */ (_CACHED_BODY)).style && !containsVendorPrefix(prop)) {\n        result = prop in (/** @type {?} */ (_CACHED_BODY)).style;\n        if (!result && _IS_WEBKIT) {\n            /** @type {?} */\n            const camelProp = 'Webkit' + prop.charAt(0).toUpperCase() + prop.substr(1);\n            result = camelProp in (/** @type {?} */ (_CACHED_BODY)).style;\n        }\n    }\n    return result;\n}\n/**\n * @return {?}\n */\nfunction getBodyNode() {\n    if (typeof document != 'undefined') {\n        return document.body;\n    }\n    return null;\n}\n/** @type {?} */\nconst matchesElement = _matches;\n/** @type {?} */\nconst containsElement = _contains;\n/** @type {?} */\nconst invokeQuery = _query;\n/**\n * @param {?} object\n * @return {?}\n */\nfunction hypenatePropsObject(object) {\n    /** @type {?} */\n    const newObj = {};\n    Object.keys(object).forEach((/**\n     * @param {?} prop\n     * @return {?}\n     */\n    prop => {\n        /** @type {?} */\n        const newProp = prop.replace(/([a-z])([A-Z])/g, '$1-$2');\n        newObj[newProp] = object[prop];\n    }));\n    return newObj;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/animation_driver.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n */\nclass NoopAnimationDriver {\n    /**\n     * @param {?} prop\n     * @return {?}\n     */\n    validateStyleProperty(prop) {\n        return validateStyleProperty(prop);\n    }\n    /**\n     * @param {?} element\n     * @param {?} selector\n     * @return {?}\n     */\n    matchesElement(element, selector) {\n        return matchesElement(element, selector);\n    }\n    /**\n     * @param {?} elm1\n     * @param {?} elm2\n     * @return {?}\n     */\n    containsElement(elm1, elm2) {\n        return containsElement(elm1, elm2);\n    }\n    /**\n     * @param {?} element\n     * @param {?} selector\n     * @param {?} multi\n     * @return {?}\n     */\n    query(element, selector, multi) {\n        return invokeQuery(element, selector, multi);\n    }\n    /**\n     * @param {?} element\n     * @param {?} prop\n     * @param {?=} defaultValue\n     * @return {?}\n     */\n    computeStyle(element, prop, defaultValue) {\n        return defaultValue || '';\n    }\n    /**\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} duration\n     * @param {?} delay\n     * @param {?} easing\n     * @param {?=} previousPlayers\n     * @param {?=} scrubberAccessRequested\n     * @return {?}\n     */\n    animate(element, keyframes, duration, delay, easing, previousPlayers = [], scrubberAccessRequested) {\n        return new NoopAnimationPlayer(duration, delay);\n    }\n}\nNoopAnimationDriver.ɵfac = function NoopAnimationDriver_Factory(t) { return new (t || NoopAnimationDriver)(); };\nNoopAnimationDriver.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: NoopAnimationDriver, factory: NoopAnimationDriver.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NoopAnimationDriver, [{\n        type: Injectable\n    }], null, null); })();\n/**\n * \\@publicApi\n * @abstract\n */\nclass AnimationDriver {\n}\nAnimationDriver.NOOP = new NoopAnimationDriver();\nif (false) {\n    /** @type {?} */\n    AnimationDriver.NOOP;\n    /**\n     * @abstract\n     * @param {?} prop\n     * @return {?}\n     */\n    AnimationDriver.prototype.validateStyleProperty = function (prop) { };\n    /**\n     * @abstract\n     * @param {?} element\n     * @param {?} selector\n     * @return {?}\n     */\n    AnimationDriver.prototype.matchesElement = function (element, selector) { };\n    /**\n     * @abstract\n     * @param {?} elm1\n     * @param {?} elm2\n     * @return {?}\n     */\n    AnimationDriver.prototype.containsElement = function (elm1, elm2) { };\n    /**\n     * @abstract\n     * @param {?} element\n     * @param {?} selector\n     * @param {?} multi\n     * @return {?}\n     */\n    AnimationDriver.prototype.query = function (element, selector, multi) { };\n    /**\n     * @abstract\n     * @param {?} element\n     * @param {?} prop\n     * @param {?=} defaultValue\n     * @return {?}\n     */\n    AnimationDriver.prototype.computeStyle = function (element, prop, defaultValue) { };\n    /**\n     * @abstract\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} duration\n     * @param {?} delay\n     * @param {?=} easing\n     * @param {?=} previousPlayers\n     * @param {?=} scrubberAccessRequested\n     * @return {?}\n     */\n    AnimationDriver.prototype.animate = function (element, keyframes, duration, delay, easing, previousPlayers, scrubberAccessRequested) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/util.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst ONE_SECOND = 1000;\n/** @type {?} */\nconst SUBSTITUTION_EXPR_START = '{{';\n/** @type {?} */\nconst SUBSTITUTION_EXPR_END = '}}';\n/** @type {?} */\nconst ENTER_CLASSNAME = 'ng-enter';\n/** @type {?} */\nconst LEAVE_CLASSNAME = 'ng-leave';\n/** @type {?} */\nconst ENTER_SELECTOR = '.ng-enter';\n/** @type {?} */\nconst LEAVE_SELECTOR = '.ng-leave';\n/** @type {?} */\nconst NG_TRIGGER_CLASSNAME = 'ng-trigger';\n/** @type {?} */\nconst NG_TRIGGER_SELECTOR = '.ng-trigger';\n/** @type {?} */\nconst NG_ANIMATING_CLASSNAME = 'ng-animating';\n/** @type {?} */\nconst NG_ANIMATING_SELECTOR = '.ng-animating';\n/**\n * @param {?} value\n * @return {?}\n */\nfunction resolveTimingValue(value) {\n    if (typeof value == 'number')\n        return value;\n    /** @type {?} */\n    const matches = value.match(/^(-?[\\.\\d]+)(m?s)/);\n    if (!matches || matches.length < 2)\n        return 0;\n    return _convertTimeValueToMS(parseFloat(matches[1]), matches[2]);\n}\n/**\n * @param {?} value\n * @param {?} unit\n * @return {?}\n */\nfunction _convertTimeValueToMS(value, unit) {\n    switch (unit) {\n        case 's':\n            return value * ONE_SECOND;\n        default: // ms or something else\n            return value;\n    }\n}\n/**\n * @param {?} timings\n * @param {?} errors\n * @param {?=} allowNegativeValues\n * @return {?}\n */\nfunction resolveTiming(timings, errors, allowNegativeValues) {\n    return timings.hasOwnProperty('duration') ?\n        (/** @type {?} */ (timings)) :\n        parseTimeExpression((/** @type {?} */ (timings)), errors, allowNegativeValues);\n}\n/**\n * @param {?} exp\n * @param {?} errors\n * @param {?=} allowNegativeValues\n * @return {?}\n */\nfunction parseTimeExpression(exp, errors, allowNegativeValues) {\n    /** @type {?} */\n    const regex = /^(-?[\\.\\d]+)(m?s)(?:\\s+(-?[\\.\\d]+)(m?s))?(?:\\s+([-a-z]+(?:\\(.+?\\))?))?$/i;\n    /** @type {?} */\n    let duration;\n    /** @type {?} */\n    let delay = 0;\n    /** @type {?} */\n    let easing = '';\n    if (typeof exp === 'string') {\n        /** @type {?} */\n        const matches = exp.match(regex);\n        if (matches === null) {\n            errors.push(`The provided timing value \"${exp}\" is invalid.`);\n            return { duration: 0, delay: 0, easing: '' };\n        }\n        duration = _convertTimeValueToMS(parseFloat(matches[1]), matches[2]);\n        /** @type {?} */\n        const delayMatch = matches[3];\n        if (delayMatch != null) {\n            delay = _convertTimeValueToMS(parseFloat(delayMatch), matches[4]);\n        }\n        /** @type {?} */\n        const easingVal = matches[5];\n        if (easingVal) {\n            easing = easingVal;\n        }\n    }\n    else {\n        duration = exp;\n    }\n    if (!allowNegativeValues) {\n        /** @type {?} */\n        let containsErrors = false;\n        /** @type {?} */\n        let startIndex = errors.length;\n        if (duration < 0) {\n            errors.push(`Duration values below 0 are not allowed for this animation step.`);\n            containsErrors = true;\n        }\n        if (delay < 0) {\n            errors.push(`Delay values below 0 are not allowed for this animation step.`);\n            containsErrors = true;\n        }\n        if (containsErrors) {\n            errors.splice(startIndex, 0, `The provided timing value \"${exp}\" is invalid.`);\n        }\n    }\n    return { duration, delay, easing };\n}\n/**\n * @param {?} obj\n * @param {?=} destination\n * @return {?}\n */\nfunction copyObj(obj, destination = {}) {\n    Object.keys(obj).forEach((/**\n     * @param {?} prop\n     * @return {?}\n     */\n    prop => {\n        destination[prop] = obj[prop];\n    }));\n    return destination;\n}\n/**\n * @param {?} styles\n * @return {?}\n */\nfunction normalizeStyles(styles) {\n    /** @type {?} */\n    const normalizedStyles = {};\n    if (Array.isArray(styles)) {\n        styles.forEach((/**\n         * @param {?} data\n         * @return {?}\n         */\n        data => copyStyles(data, false, normalizedStyles)));\n    }\n    else {\n        copyStyles(styles, false, normalizedStyles);\n    }\n    return normalizedStyles;\n}\n/**\n * @param {?} styles\n * @param {?} readPrototype\n * @param {?=} destination\n * @return {?}\n */\nfunction copyStyles(styles, readPrototype, destination = {}) {\n    if (readPrototype) {\n        // we make use of a for-in loop so that the\n        // prototypically inherited properties are\n        // revealed from the backFill map\n        for (let prop in styles) {\n            destination[prop] = styles[prop];\n        }\n    }\n    else {\n        copyObj(styles, destination);\n    }\n    return destination;\n}\n/**\n * @param {?} element\n * @param {?} key\n * @param {?} value\n * @return {?}\n */\nfunction getStyleAttributeString(element, key, value) {\n    // Return the key-value pair string to be added to the style attribute for the\n    // given CSS style key.\n    if (value) {\n        return key + ':' + value + ';';\n    }\n    else {\n        return '';\n    }\n}\n/**\n * @param {?} element\n * @return {?}\n */\nfunction writeStyleAttribute(element) {\n    // Read the style property of the element and manually reflect it to the\n    // style attribute. This is needed because Domino on platform-server doesn't\n    // understand the full set of allowed CSS properties and doesn't reflect some\n    // of them automatically.\n    /** @type {?} */\n    let styleAttrValue = '';\n    for (let i = 0; i < element.style.length; i++) {\n        /** @type {?} */\n        const key = element.style.item(i);\n        styleAttrValue += getStyleAttributeString(element, key, element.style.getPropertyValue(key));\n    }\n    for (const key in element.style) {\n        // Skip internal Domino properties that don't need to be reflected.\n        if (!element.style.hasOwnProperty(key) || key.startsWith('_')) {\n            continue;\n        }\n        /** @type {?} */\n        const dashKey = camelCaseToDashCase(key);\n        styleAttrValue += getStyleAttributeString(element, dashKey, element.style[key]);\n    }\n    element.setAttribute('style', styleAttrValue);\n}\n/**\n * @param {?} element\n * @param {?} styles\n * @param {?=} formerStyles\n * @return {?}\n */\nfunction setStyles(element, styles, formerStyles) {\n    if (element['style']) {\n        Object.keys(styles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const camelProp = dashCaseToCamelCase(prop);\n            if (formerStyles && !formerStyles.hasOwnProperty(prop)) {\n                formerStyles[prop] = element.style[camelProp];\n            }\n            element.style[camelProp] = styles[prop];\n        }));\n        // On the server set the 'style' attribute since it's not automatically reflected.\n        if (isNode()) {\n            writeStyleAttribute(element);\n        }\n    }\n}\n/**\n * @param {?} element\n * @param {?} styles\n * @return {?}\n */\nfunction eraseStyles(element, styles) {\n    if (element['style']) {\n        Object.keys(styles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const camelProp = dashCaseToCamelCase(prop);\n            element.style[camelProp] = '';\n        }));\n        // On the server set the 'style' attribute since it's not automatically reflected.\n        if (isNode()) {\n            writeStyleAttribute(element);\n        }\n    }\n}\n/**\n * @param {?} steps\n * @return {?}\n */\nfunction normalizeAnimationEntry(steps) {\n    if (Array.isArray(steps)) {\n        if (steps.length == 1)\n            return steps[0];\n        return sequence(steps);\n    }\n    return (/** @type {?} */ (steps));\n}\n/**\n * @param {?} value\n * @param {?} options\n * @param {?} errors\n * @return {?}\n */\nfunction validateStyleParams(value, options, errors) {\n    /** @type {?} */\n    const params = options.params || {};\n    /** @type {?} */\n    const matches = extractStyleParams(value);\n    if (matches.length) {\n        matches.forEach((/**\n         * @param {?} varName\n         * @return {?}\n         */\n        varName => {\n            if (!params.hasOwnProperty(varName)) {\n                errors.push(`Unable to resolve the local animation param ${varName} in the given list of values`);\n            }\n        }));\n    }\n}\n/** @type {?} */\nconst PARAM_REGEX = new RegExp(`${SUBSTITUTION_EXPR_START}\\\\s*(.+?)\\\\s*${SUBSTITUTION_EXPR_END}`, 'g');\n/**\n * @param {?} value\n * @return {?}\n */\nfunction extractStyleParams(value) {\n    /** @type {?} */\n    let params = [];\n    if (typeof value === 'string') {\n        /** @type {?} */\n        let match;\n        while (match = PARAM_REGEX.exec(value)) {\n            params.push((/** @type {?} */ (match[1])));\n        }\n        PARAM_REGEX.lastIndex = 0;\n    }\n    return params;\n}\n/**\n * @param {?} value\n * @param {?} params\n * @param {?} errors\n * @return {?}\n */\nfunction interpolateParams(value, params, errors) {\n    /** @type {?} */\n    const original = value.toString();\n    /** @type {?} */\n    const str = original.replace(PARAM_REGEX, (/**\n     * @param {?} _\n     * @param {?} varName\n     * @return {?}\n     */\n    (_, varName) => {\n        /** @type {?} */\n        let localVal = params[varName];\n        // this means that the value was never overridden by the data passed in by the user\n        if (!params.hasOwnProperty(varName)) {\n            errors.push(`Please provide a value for the animation param ${varName}`);\n            localVal = '';\n        }\n        return localVal.toString();\n    }));\n    // we do this to assert that numeric values stay as they are\n    return str == original ? value : str;\n}\n/**\n * @param {?} iterator\n * @return {?}\n */\nfunction iteratorToArray(iterator) {\n    /** @type {?} */\n    const arr = [];\n    /** @type {?} */\n    let item = iterator.next();\n    while (!item.done) {\n        arr.push(item.value);\n        item = iterator.next();\n    }\n    return arr;\n}\n/**\n * @param {?} source\n * @param {?} destination\n * @return {?}\n */\nfunction mergeAnimationOptions(source, destination) {\n    if (source.params) {\n        /** @type {?} */\n        const p0 = source.params;\n        if (!destination.params) {\n            destination.params = {};\n        }\n        /** @type {?} */\n        const p1 = destination.params;\n        Object.keys(p0).forEach((/**\n         * @param {?} param\n         * @return {?}\n         */\n        param => {\n            if (!p1.hasOwnProperty(param)) {\n                p1[param] = p0[param];\n            }\n        }));\n    }\n    return destination;\n}\n/** @type {?} */\nconst DASH_CASE_REGEXP = /-+([a-z0-9])/g;\n/**\n * @param {?} input\n * @return {?}\n */\nfunction dashCaseToCamelCase(input) {\n    return input.replace(DASH_CASE_REGEXP, (/**\n     * @param {...?} m\n     * @return {?}\n     */\n    (...m) => m[1].toUpperCase()));\n}\n/**\n * @param {?} input\n * @return {?}\n */\nfunction camelCaseToDashCase(input) {\n    return input.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase();\n}\n/**\n * @param {?} duration\n * @param {?} delay\n * @return {?}\n */\nfunction allowPreviousPlayerStylesMerge(duration, delay) {\n    return duration === 0 || delay === 0;\n}\n/**\n * @param {?} element\n * @param {?} keyframes\n * @param {?} previousStyles\n * @return {?}\n */\nfunction balancePreviousStylesIntoKeyframes(element, keyframes, previousStyles) {\n    /** @type {?} */\n    const previousStyleProps = Object.keys(previousStyles);\n    if (previousStyleProps.length && keyframes.length) {\n        /** @type {?} */\n        let startingKeyframe = keyframes[0];\n        /** @type {?} */\n        let missingStyleProps = [];\n        previousStyleProps.forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            if (!startingKeyframe.hasOwnProperty(prop)) {\n                missingStyleProps.push(prop);\n            }\n            startingKeyframe[prop] = previousStyles[prop];\n        }));\n        if (missingStyleProps.length) {\n            // tslint:disable-next-line\n            for (var i = 1; i < keyframes.length; i++) {\n                /** @type {?} */\n                let kf = keyframes[i];\n                missingStyleProps.forEach((/**\n                 * @param {?} prop\n                 * @return {?}\n                 */\n                function (prop) {\n                    kf[prop] = computeStyle(element, prop);\n                }));\n            }\n        }\n    }\n    return keyframes;\n}\n/**\n * @param {?} visitor\n * @param {?} node\n * @param {?} context\n * @return {?}\n */\nfunction visitDslNode(visitor, node, context) {\n    switch (node.type) {\n        case 7 /* Trigger */:\n            return visitor.visitTrigger(node, context);\n        case 0 /* State */:\n            return visitor.visitState(node, context);\n        case 1 /* Transition */:\n            return visitor.visitTransition(node, context);\n        case 2 /* Sequence */:\n            return visitor.visitSequence(node, context);\n        case 3 /* Group */:\n            return visitor.visitGroup(node, context);\n        case 4 /* Animate */:\n            return visitor.visitAnimate(node, context);\n        case 5 /* Keyframes */:\n            return visitor.visitKeyframes(node, context);\n        case 6 /* Style */:\n            return visitor.visitStyle(node, context);\n        case 8 /* Reference */:\n            return visitor.visitReference(node, context);\n        case 9 /* AnimateChild */:\n            return visitor.visitAnimateChild(node, context);\n        case 10 /* AnimateRef */:\n            return visitor.visitAnimateRef(node, context);\n        case 11 /* Query */:\n            return visitor.visitQuery(node, context);\n        case 12 /* Stagger */:\n            return visitor.visitStagger(node, context);\n        default:\n            throw new Error(`Unable to resolve animation metadata node #${node.type}`);\n    }\n}\n/**\n * @param {?} element\n * @param {?} prop\n * @return {?}\n */\nfunction computeStyle(element, prop) {\n    return ((/** @type {?} */ (window.getComputedStyle(element))))[prop];\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation_transition_expr.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n * @type {?}\n */\nconst ANY_STATE = '*';\n/**\n * @param {?} transitionValue\n * @param {?} errors\n * @return {?}\n */\nfunction parseTransitionExpr(transitionValue, errors) {\n    /** @type {?} */\n    const expressions = [];\n    if (typeof transitionValue == 'string') {\n        transitionValue.split(/\\s*,\\s*/).forEach((/**\n         * @param {?} str\n         * @return {?}\n         */\n        str => parseInnerTransitionStr(str, expressions, errors)));\n    }\n    else {\n        expressions.push((/** @type {?} */ (transitionValue)));\n    }\n    return expressions;\n}\n/**\n * @param {?} eventStr\n * @param {?} expressions\n * @param {?} errors\n * @return {?}\n */\nfunction parseInnerTransitionStr(eventStr, expressions, errors) {\n    if (eventStr[0] == ':') {\n        /** @type {?} */\n        const result = parseAnimationAlias(eventStr, errors);\n        if (typeof result == 'function') {\n            expressions.push(result);\n            return;\n        }\n        eventStr = result;\n    }\n    /** @type {?} */\n    const match = eventStr.match(/^(\\*|[-\\w]+)\\s*(<?[=-]>)\\s*(\\*|[-\\w]+)$/);\n    if (match == null || match.length < 4) {\n        errors.push(`The provided transition expression \"${eventStr}\" is not supported`);\n        return expressions;\n    }\n    /** @type {?} */\n    const fromState = match[1];\n    /** @type {?} */\n    const separator = match[2];\n    /** @type {?} */\n    const toState = match[3];\n    expressions.push(makeLambdaFromStates(fromState, toState));\n    /** @type {?} */\n    const isFullAnyStateExpr = fromState == ANY_STATE && toState == ANY_STATE;\n    if (separator[0] == '<' && !isFullAnyStateExpr) {\n        expressions.push(makeLambdaFromStates(toState, fromState));\n    }\n}\n/**\n * @param {?} alias\n * @param {?} errors\n * @return {?}\n */\nfunction parseAnimationAlias(alias, errors) {\n    switch (alias) {\n        case ':enter':\n            return 'void => *';\n        case ':leave':\n            return '* => void';\n        case ':increment':\n            return (/**\n             * @param {?} fromState\n             * @param {?} toState\n             * @return {?}\n             */\n            (fromState, toState) => parseFloat(toState) > parseFloat(fromState));\n        case ':decrement':\n            return (/**\n             * @param {?} fromState\n             * @param {?} toState\n             * @return {?}\n             */\n            (fromState, toState) => parseFloat(toState) < parseFloat(fromState));\n        default:\n            errors.push(`The transition alias value \"${alias}\" is not supported`);\n            return '* => *';\n    }\n}\n// DO NOT REFACTOR ... keep the follow set instantiations\n// with the values intact (closure compiler for some reason\n// removes follow-up lines that add the values outside of\n// the constructor...\n/** @type {?} */\nconst TRUE_BOOLEAN_VALUES = new Set(['true', '1']);\n/** @type {?} */\nconst FALSE_BOOLEAN_VALUES = new Set(['false', '0']);\n/**\n * @param {?} lhs\n * @param {?} rhs\n * @return {?}\n */\nfunction makeLambdaFromStates(lhs, rhs) {\n    /** @type {?} */\n    const LHS_MATCH_BOOLEAN = TRUE_BOOLEAN_VALUES.has(lhs) || FALSE_BOOLEAN_VALUES.has(lhs);\n    /** @type {?} */\n    const RHS_MATCH_BOOLEAN = TRUE_BOOLEAN_VALUES.has(rhs) || FALSE_BOOLEAN_VALUES.has(rhs);\n    return (/**\n     * @param {?} fromState\n     * @param {?} toState\n     * @return {?}\n     */\n    (fromState, toState) => {\n        /** @type {?} */\n        let lhsMatch = lhs == ANY_STATE || lhs == fromState;\n        /** @type {?} */\n        let rhsMatch = rhs == ANY_STATE || rhs == toState;\n        if (!lhsMatch && LHS_MATCH_BOOLEAN && typeof fromState === 'boolean') {\n            lhsMatch = fromState ? TRUE_BOOLEAN_VALUES.has(lhs) : FALSE_BOOLEAN_VALUES.has(lhs);\n        }\n        if (!rhsMatch && RHS_MATCH_BOOLEAN && typeof toState === 'boolean') {\n            rhsMatch = toState ? TRUE_BOOLEAN_VALUES.has(rhs) : FALSE_BOOLEAN_VALUES.has(rhs);\n        }\n        return lhsMatch && rhsMatch;\n    });\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation_ast_builder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst SELF_TOKEN = ':self';\n/** @type {?} */\nconst SELF_TOKEN_REGEX = new RegExp(`\\s*${SELF_TOKEN}\\s*,?`, 'g');\n/*\n * [Validation]\n * The visitor code below will traverse the animation AST generated by the animation verb functions\n * (the output is a tree of objects) and attempt to perform a series of validations on the data. The\n * following corner-cases will be validated:\n *\n * 1. Overlap of animations\n * Given that a CSS property cannot be animated in more than one place at the same time, it's\n * important that this behavior is detected and validated. The way in which this occurs is that\n * each time a style property is examined, a string-map containing the property will be updated with\n * the start and end times for when the property is used within an animation step.\n *\n * If there are two or more parallel animations that are currently running (these are invoked by the\n * group()) on the same element then the validator will throw an error. Since the start/end timing\n * values are collected for each property then if the current animation step is animating the same\n * property and its timing values fall anywhere into the window of time that the property is\n * currently being animated within then this is what causes an error.\n *\n * 2. Timing values\n * The validator will validate to see if a timing value of `duration delay easing` or\n * `durationNumber` is valid or not.\n *\n * (note that upon validation the code below will replace the timing data with an object containing\n * {duration,delay,easing}.\n *\n * 3. Offset Validation\n * Each of the style() calls are allowed to have an offset value when placed inside of keyframes().\n * Offsets within keyframes() are considered valid when:\n *\n *   - No offsets are used at all\n *   - Each style() entry contains an offset value\n *   - Each offset is between 0 and 1\n *   - Each offset is greater to or equal than the previous one\n *\n * Otherwise an error will be thrown.\n */\n/**\n * @param {?} driver\n * @param {?} metadata\n * @param {?} errors\n * @return {?}\n */\nfunction buildAnimationAst(driver, metadata, errors) {\n    return new AnimationAstBuilderVisitor(driver).build(metadata, errors);\n}\n/** @type {?} */\nconst ROOT_SELECTOR = '';\nclass AnimationAstBuilderVisitor {\n    /**\n     * @param {?} _driver\n     */\n    constructor(_driver) {\n        this._driver = _driver;\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} errors\n     * @return {?}\n     */\n    build(metadata, errors) {\n        /** @type {?} */\n        const context = new AnimationAstBuilderContext(errors);\n        this._resetContextStyleTimingState(context);\n        return (/** @type {?} */ (visitDslNode(this, normalizeAnimationEntry(metadata), context)));\n    }\n    /**\n     * @private\n     * @param {?} context\n     * @return {?}\n     */\n    _resetContextStyleTimingState(context) {\n        context.currentQuerySelector = ROOT_SELECTOR;\n        context.collectedStyles = {};\n        context.collectedStyles[ROOT_SELECTOR] = {};\n        context.currentTime = 0;\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitTrigger(metadata, context) {\n        /** @type {?} */\n        let queryCount = context.queryCount = 0;\n        /** @type {?} */\n        let depCount = context.depCount = 0;\n        /** @type {?} */\n        const states = [];\n        /** @type {?} */\n        const transitions = [];\n        if (metadata.name.charAt(0) == '@') {\n            context.errors.push('animation triggers cannot be prefixed with an `@` sign (e.g. trigger(\\'@foo\\', [...]))');\n        }\n        metadata.definitions.forEach((/**\n         * @param {?} def\n         * @return {?}\n         */\n        def => {\n            this._resetContextStyleTimingState(context);\n            if (def.type == 0 /* State */) {\n                /** @type {?} */\n                const stateDef = (/** @type {?} */ (def));\n                /** @type {?} */\n                const name = stateDef.name;\n                name.toString().split(/\\s*,\\s*/).forEach((/**\n                 * @param {?} n\n                 * @return {?}\n                 */\n                n => {\n                    stateDef.name = n;\n                    states.push(this.visitState(stateDef, context));\n                }));\n                stateDef.name = name;\n            }\n            else if (def.type == 1 /* Transition */) {\n                /** @type {?} */\n                const transition = this.visitTransition((/** @type {?} */ (def)), context);\n                queryCount += transition.queryCount;\n                depCount += transition.depCount;\n                transitions.push(transition);\n            }\n            else {\n                context.errors.push('only state() and transition() definitions can sit inside of a trigger()');\n            }\n        }));\n        return {\n            type: 7 /* Trigger */,\n            name: metadata.name,\n            states,\n            transitions,\n            queryCount,\n            depCount,\n            options: null\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitState(metadata, context) {\n        /** @type {?} */\n        const styleAst = this.visitStyle(metadata.styles, context);\n        /** @type {?} */\n        const astParams = (metadata.options && metadata.options.params) || null;\n        if (styleAst.containsDynamicStyles) {\n            /** @type {?} */\n            const missingSubs = new Set();\n            /** @type {?} */\n            const params = astParams || {};\n            styleAst.styles.forEach((/**\n             * @param {?} value\n             * @return {?}\n             */\n            value => {\n                if (isObject(value)) {\n                    /** @type {?} */\n                    const stylesObj = (/** @type {?} */ (value));\n                    Object.keys(stylesObj).forEach((/**\n                     * @param {?} prop\n                     * @return {?}\n                     */\n                    prop => {\n                        extractStyleParams(stylesObj[prop]).forEach((/**\n                         * @param {?} sub\n                         * @return {?}\n                         */\n                        sub => {\n                            if (!params.hasOwnProperty(sub)) {\n                                missingSubs.add(sub);\n                            }\n                        }));\n                    }));\n                }\n            }));\n            if (missingSubs.size) {\n                /** @type {?} */\n                const missingSubsArr = iteratorToArray(missingSubs.values());\n                context.errors.push(`state(\"${metadata\n                    .name}\", ...) must define default values for all the following style substitutions: ${missingSubsArr.join(', ')}`);\n            }\n        }\n        return {\n            type: 0 /* State */,\n            name: metadata.name,\n            style: styleAst,\n            options: astParams ? { params: astParams } : null\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitTransition(metadata, context) {\n        context.queryCount = 0;\n        context.depCount = 0;\n        /** @type {?} */\n        const animation = visitDslNode(this, normalizeAnimationEntry(metadata.animation), context);\n        /** @type {?} */\n        const matchers = parseTransitionExpr(metadata.expr, context.errors);\n        return {\n            type: 1 /* Transition */,\n            matchers,\n            animation,\n            queryCount: context.queryCount,\n            depCount: context.depCount,\n            options: normalizeAnimationOptions(metadata.options)\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitSequence(metadata, context) {\n        return {\n            type: 2 /* Sequence */,\n            steps: metadata.steps.map((/**\n             * @param {?} s\n             * @return {?}\n             */\n            s => visitDslNode(this, s, context))),\n            options: normalizeAnimationOptions(metadata.options)\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitGroup(metadata, context) {\n        /** @type {?} */\n        const currentTime = context.currentTime;\n        /** @type {?} */\n        let furthestTime = 0;\n        /** @type {?} */\n        const steps = metadata.steps.map((/**\n         * @param {?} step\n         * @return {?}\n         */\n        step => {\n            context.currentTime = currentTime;\n            /** @type {?} */\n            const innerAst = visitDslNode(this, step, context);\n            furthestTime = Math.max(furthestTime, context.currentTime);\n            return innerAst;\n        }));\n        context.currentTime = furthestTime;\n        return {\n            type: 3 /* Group */,\n            steps,\n            options: normalizeAnimationOptions(metadata.options)\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitAnimate(metadata, context) {\n        /** @type {?} */\n        const timingAst = constructTimingAst(metadata.timings, context.errors);\n        context.currentAnimateTimings = timingAst;\n        /** @type {?} */\n        let styleAst;\n        /** @type {?} */\n        let styleMetadata = metadata.styles ? metadata.styles : style({});\n        if (styleMetadata.type == 5 /* Keyframes */) {\n            styleAst = this.visitKeyframes((/** @type {?} */ (styleMetadata)), context);\n        }\n        else {\n            /** @type {?} */\n            let styleMetadata = (/** @type {?} */ (metadata.styles));\n            /** @type {?} */\n            let isEmpty = false;\n            if (!styleMetadata) {\n                isEmpty = true;\n                /** @type {?} */\n                const newStyleData = {};\n                if (timingAst.easing) {\n                    newStyleData['easing'] = timingAst.easing;\n                }\n                styleMetadata = style(newStyleData);\n            }\n            context.currentTime += timingAst.duration + timingAst.delay;\n            /** @type {?} */\n            const _styleAst = this.visitStyle(styleMetadata, context);\n            _styleAst.isEmptyStep = isEmpty;\n            styleAst = _styleAst;\n        }\n        context.currentAnimateTimings = null;\n        return {\n            type: 4 /* Animate */,\n            timings: timingAst,\n            style: styleAst,\n            options: null\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitStyle(metadata, context) {\n        /** @type {?} */\n        const ast = this._makeStyleAst(metadata, context);\n        this._validateStyleAst(ast, context);\n        return ast;\n    }\n    /**\n     * @private\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    _makeStyleAst(metadata, context) {\n        /** @type {?} */\n        const styles = [];\n        if (Array.isArray(metadata.styles)) {\n            ((/** @type {?} */ (metadata.styles))).forEach((/**\n             * @param {?} styleTuple\n             * @return {?}\n             */\n            styleTuple => {\n                if (typeof styleTuple == 'string') {\n                    if (styleTuple == AUTO_STYLE) {\n                        styles.push(styleTuple);\n                    }\n                    else {\n                        context.errors.push(`The provided style string value ${styleTuple} is not allowed.`);\n                    }\n                }\n                else {\n                    styles.push(styleTuple);\n                }\n            }));\n        }\n        else {\n            styles.push(metadata.styles);\n        }\n        /** @type {?} */\n        let containsDynamicStyles = false;\n        /** @type {?} */\n        let collectedEasing = null;\n        styles.forEach((/**\n         * @param {?} styleData\n         * @return {?}\n         */\n        styleData => {\n            if (isObject(styleData)) {\n                /** @type {?} */\n                const styleMap = (/** @type {?} */ (styleData));\n                /** @type {?} */\n                const easing = styleMap['easing'];\n                if (easing) {\n                    collectedEasing = (/** @type {?} */ (easing));\n                    delete styleMap['easing'];\n                }\n                if (!containsDynamicStyles) {\n                    for (let prop in styleMap) {\n                        /** @type {?} */\n                        const value = styleMap[prop];\n                        if (value.toString().indexOf(SUBSTITUTION_EXPR_START) >= 0) {\n                            containsDynamicStyles = true;\n                            break;\n                        }\n                    }\n                }\n            }\n        }));\n        return {\n            type: 6 /* Style */,\n            styles,\n            easing: collectedEasing,\n            offset: metadata.offset,\n            containsDynamicStyles,\n            options: null\n        };\n    }\n    /**\n     * @private\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    _validateStyleAst(ast, context) {\n        /** @type {?} */\n        const timings = context.currentAnimateTimings;\n        /** @type {?} */\n        let endTime = context.currentTime;\n        /** @type {?} */\n        let startTime = context.currentTime;\n        if (timings && startTime > 0) {\n            startTime -= timings.duration + timings.delay;\n        }\n        ast.styles.forEach((/**\n         * @param {?} tuple\n         * @return {?}\n         */\n        tuple => {\n            if (typeof tuple == 'string')\n                return;\n            Object.keys(tuple).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                if (!this._driver.validateStyleProperty(prop)) {\n                    context.errors.push(`The provided animation property \"${prop}\" is not a supported CSS property for animations`);\n                    return;\n                }\n                /** @type {?} */\n                const collectedStyles = context.collectedStyles[(/** @type {?} */ (context.currentQuerySelector))];\n                /** @type {?} */\n                const collectedEntry = collectedStyles[prop];\n                /** @type {?} */\n                let updateCollectedStyle = true;\n                if (collectedEntry) {\n                    if (startTime != endTime && startTime >= collectedEntry.startTime &&\n                        endTime <= collectedEntry.endTime) {\n                        context.errors.push(`The CSS property \"${prop}\" that exists between the times of \"${collectedEntry.startTime}ms\" and \"${collectedEntry\n                            .endTime}ms\" is also being animated in a parallel animation between the times of \"${startTime}ms\" and \"${endTime}ms\"`);\n                        updateCollectedStyle = false;\n                    }\n                    // we always choose the smaller start time value since we\n                    // want to have a record of the entire animation window where\n                    // the style property is being animated in between\n                    startTime = collectedEntry.startTime;\n                }\n                if (updateCollectedStyle) {\n                    collectedStyles[prop] = { startTime, endTime };\n                }\n                if (context.options) {\n                    validateStyleParams(tuple[prop], context.options, context.errors);\n                }\n            }));\n        }));\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitKeyframes(metadata, context) {\n        /** @type {?} */\n        const ast = { type: 5 /* Keyframes */, styles: [], options: null };\n        if (!context.currentAnimateTimings) {\n            context.errors.push(`keyframes() must be placed inside of a call to animate()`);\n            return ast;\n        }\n        /** @type {?} */\n        const MAX_KEYFRAME_OFFSET = 1;\n        /** @type {?} */\n        let totalKeyframesWithOffsets = 0;\n        /** @type {?} */\n        const offsets = [];\n        /** @type {?} */\n        let offsetsOutOfOrder = false;\n        /** @type {?} */\n        let keyframesOutOfRange = false;\n        /** @type {?} */\n        let previousOffset = 0;\n        /** @type {?} */\n        const keyframes = metadata.steps.map((/**\n         * @param {?} styles\n         * @return {?}\n         */\n        styles => {\n            /** @type {?} */\n            const style = this._makeStyleAst(styles, context);\n            /** @type {?} */\n            let offsetVal = style.offset != null ? style.offset : consumeOffset(style.styles);\n            /** @type {?} */\n            let offset = 0;\n            if (offsetVal != null) {\n                totalKeyframesWithOffsets++;\n                offset = style.offset = offsetVal;\n            }\n            keyframesOutOfRange = keyframesOutOfRange || offset < 0 || offset > 1;\n            offsetsOutOfOrder = offsetsOutOfOrder || offset < previousOffset;\n            previousOffset = offset;\n            offsets.push(offset);\n            return style;\n        }));\n        if (keyframesOutOfRange) {\n            context.errors.push(`Please ensure that all keyframe offsets are between 0 and 1`);\n        }\n        if (offsetsOutOfOrder) {\n            context.errors.push(`Please ensure that all keyframe offsets are in order`);\n        }\n        /** @type {?} */\n        const length = metadata.steps.length;\n        /** @type {?} */\n        let generatedOffset = 0;\n        if (totalKeyframesWithOffsets > 0 && totalKeyframesWithOffsets < length) {\n            context.errors.push(`Not all style() steps within the declared keyframes() contain offsets`);\n        }\n        else if (totalKeyframesWithOffsets == 0) {\n            generatedOffset = MAX_KEYFRAME_OFFSET / (length - 1);\n        }\n        /** @type {?} */\n        const limit = length - 1;\n        /** @type {?} */\n        const currentTime = context.currentTime;\n        /** @type {?} */\n        const currentAnimateTimings = (/** @type {?} */ (context.currentAnimateTimings));\n        /** @type {?} */\n        const animateDuration = currentAnimateTimings.duration;\n        keyframes.forEach((/**\n         * @param {?} kf\n         * @param {?} i\n         * @return {?}\n         */\n        (kf, i) => {\n            /** @type {?} */\n            const offset = generatedOffset > 0 ? (i == limit ? 1 : (generatedOffset * i)) : offsets[i];\n            /** @type {?} */\n            const durationUpToThisFrame = offset * animateDuration;\n            context.currentTime = currentTime + currentAnimateTimings.delay + durationUpToThisFrame;\n            currentAnimateTimings.duration = durationUpToThisFrame;\n            this._validateStyleAst(kf, context);\n            kf.offset = offset;\n            ast.styles.push(kf);\n        }));\n        return ast;\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitReference(metadata, context) {\n        return {\n            type: 8 /* Reference */,\n            animation: visitDslNode(this, normalizeAnimationEntry(metadata.animation), context),\n            options: normalizeAnimationOptions(metadata.options)\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitAnimateChild(metadata, context) {\n        context.depCount++;\n        return {\n            type: 9 /* AnimateChild */,\n            options: normalizeAnimationOptions(metadata.options)\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitAnimateRef(metadata, context) {\n        return {\n            type: 10 /* AnimateRef */,\n            animation: this.visitReference(metadata.animation, context),\n            options: normalizeAnimationOptions(metadata.options)\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitQuery(metadata, context) {\n        /** @type {?} */\n        const parentSelector = (/** @type {?} */ (context.currentQuerySelector));\n        /** @type {?} */\n        const options = (/** @type {?} */ ((metadata.options || {})));\n        context.queryCount++;\n        context.currentQuery = metadata;\n        const [selector, includeSelf] = normalizeSelector(metadata.selector);\n        context.currentQuerySelector =\n            parentSelector.length ? (parentSelector + ' ' + selector) : selector;\n        getOrSetAsInMap(context.collectedStyles, context.currentQuerySelector, {});\n        /** @type {?} */\n        const animation = visitDslNode(this, normalizeAnimationEntry(metadata.animation), context);\n        context.currentQuery = null;\n        context.currentQuerySelector = parentSelector;\n        return {\n            type: 11 /* Query */,\n            selector,\n            limit: options.limit || 0,\n            optional: !!options.optional,\n            includeSelf,\n            animation,\n            originalSelector: metadata.selector,\n            options: normalizeAnimationOptions(metadata.options)\n        };\n    }\n    /**\n     * @param {?} metadata\n     * @param {?} context\n     * @return {?}\n     */\n    visitStagger(metadata, context) {\n        if (!context.currentQuery) {\n            context.errors.push(`stagger() can only be used inside of query()`);\n        }\n        /** @type {?} */\n        const timings = metadata.timings === 'full' ?\n            { duration: 0, delay: 0, easing: 'full' } :\n            resolveTiming(metadata.timings, context.errors, true);\n        return {\n            type: 12 /* Stagger */,\n            animation: visitDslNode(this, normalizeAnimationEntry(metadata.animation), context),\n            timings,\n            options: null\n        };\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationAstBuilderVisitor.prototype._driver;\n}\n/**\n * @param {?} selector\n * @return {?}\n */\nfunction normalizeSelector(selector) {\n    /** @type {?} */\n    const hasAmpersand = selector.split(/\\s*,\\s*/).find((/**\n     * @param {?} token\n     * @return {?}\n     */\n    token => token == SELF_TOKEN)) ? true : false;\n    if (hasAmpersand) {\n        selector = selector.replace(SELF_TOKEN_REGEX, '');\n    }\n    // the :enter and :leave selectors are filled in at runtime during timeline building\n    selector = selector.replace(/@\\*/g, NG_TRIGGER_SELECTOR)\n        .replace(/@\\w+/g, (/**\n     * @param {?} match\n     * @return {?}\n     */\n    match => NG_TRIGGER_SELECTOR + '-' + match.substr(1)))\n        .replace(/:animating/g, NG_ANIMATING_SELECTOR);\n    return [selector, hasAmpersand];\n}\n/**\n * @param {?} obj\n * @return {?}\n */\nfunction normalizeParams(obj) {\n    return obj ? copyObj(obj) : null;\n}\nclass AnimationAstBuilderContext {\n    /**\n     * @param {?} errors\n     */\n    constructor(errors) {\n        this.errors = errors;\n        this.queryCount = 0;\n        this.depCount = 0;\n        this.currentTransition = null;\n        this.currentQuery = null;\n        this.currentQuerySelector = null;\n        this.currentAnimateTimings = null;\n        this.currentTime = 0;\n        this.collectedStyles = {};\n        this.options = null;\n    }\n}\nif (false) {\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.queryCount;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.depCount;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.currentTransition;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.currentQuery;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.currentQuerySelector;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.currentAnimateTimings;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.currentTime;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.collectedStyles;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.options;\n    /** @type {?} */\n    AnimationAstBuilderContext.prototype.errors;\n}\n/**\n * @param {?} styles\n * @return {?}\n */\nfunction consumeOffset(styles) {\n    if (typeof styles == 'string')\n        return null;\n    /** @type {?} */\n    let offset = null;\n    if (Array.isArray(styles)) {\n        styles.forEach((/**\n         * @param {?} styleTuple\n         * @return {?}\n         */\n        styleTuple => {\n            if (isObject(styleTuple) && styleTuple.hasOwnProperty('offset')) {\n                /** @type {?} */\n                const obj = (/** @type {?} */ (styleTuple));\n                offset = parseFloat((/** @type {?} */ (obj['offset'])));\n                delete obj['offset'];\n            }\n        }));\n    }\n    else if (isObject(styles) && styles.hasOwnProperty('offset')) {\n        /** @type {?} */\n        const obj = styles;\n        offset = parseFloat((/** @type {?} */ (obj['offset'])));\n        delete obj['offset'];\n    }\n    return offset;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction isObject(value) {\n    return !Array.isArray(value) && typeof value == 'object';\n}\n/**\n * @param {?} value\n * @param {?} errors\n * @return {?}\n */\nfunction constructTimingAst(value, errors) {\n    /** @type {?} */\n    let timings = null;\n    if (value.hasOwnProperty('duration')) {\n        timings = (/** @type {?} */ (value));\n    }\n    else if (typeof value == 'number') {\n        /** @type {?} */\n        const duration = resolveTiming(value, errors).duration;\n        return makeTimingAst(duration, 0, '');\n    }\n    /** @type {?} */\n    const strValue = (/** @type {?} */ (value));\n    /** @type {?} */\n    const isDynamic = strValue.split(/\\s+/).some((/**\n     * @param {?} v\n     * @return {?}\n     */\n    v => v.charAt(0) == '{' && v.charAt(1) == '{'));\n    if (isDynamic) {\n        /** @type {?} */\n        const ast = (/** @type {?} */ (makeTimingAst(0, 0, '')));\n        ast.dynamic = true;\n        ast.strValue = strValue;\n        return (/** @type {?} */ (ast));\n    }\n    timings = timings || resolveTiming(strValue, errors);\n    return makeTimingAst(timings.duration, timings.delay, timings.easing);\n}\n/**\n * @param {?} options\n * @return {?}\n */\nfunction normalizeAnimationOptions(options) {\n    if (options) {\n        options = copyObj(options);\n        if (options['params']) {\n            options['params'] = (/** @type {?} */ (normalizeParams(options['params'])));\n        }\n    }\n    else {\n        options = {};\n    }\n    return options;\n}\n/**\n * @param {?} duration\n * @param {?} delay\n * @param {?} easing\n * @return {?}\n */\nfunction makeTimingAst(duration, delay, easing) {\n    return { duration, delay, easing };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation_timeline_instruction.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction AnimationTimelineInstruction() { }\nif (false) {\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.element;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.keyframes;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.preStyleProps;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.postStyleProps;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.duration;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.delay;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.totalTime;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.easing;\n    /** @type {?|undefined} */\n    AnimationTimelineInstruction.prototype.stretchStartingKeyframe;\n    /** @type {?} */\n    AnimationTimelineInstruction.prototype.subTimeline;\n}\n/**\n * @param {?} element\n * @param {?} keyframes\n * @param {?} preStyleProps\n * @param {?} postStyleProps\n * @param {?} duration\n * @param {?} delay\n * @param {?=} easing\n * @param {?=} subTimeline\n * @return {?}\n */\nfunction createTimelineInstruction(element, keyframes, preStyleProps, postStyleProps, duration, delay, easing = null, subTimeline = false) {\n    return {\n        type: 1 /* TimelineAnimation */,\n        element,\n        keyframes,\n        preStyleProps,\n        postStyleProps,\n        duration,\n        delay,\n        totalTime: duration + delay,\n        easing,\n        subTimeline\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/element_instruction_map.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass ElementInstructionMap {\n    constructor() {\n        this._map = new Map();\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    consume(element) {\n        /** @type {?} */\n        let instructions = this._map.get(element);\n        if (instructions) {\n            this._map.delete(element);\n        }\n        else {\n            instructions = [];\n        }\n        return instructions;\n    }\n    /**\n     * @param {?} element\n     * @param {?} instructions\n     * @return {?}\n     */\n    append(element, instructions) {\n        /** @type {?} */\n        let existingInstructions = this._map.get(element);\n        if (!existingInstructions) {\n            this._map.set(element, existingInstructions = []);\n        }\n        existingInstructions.push(...instructions);\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    has(element) {\n        return this._map.has(element);\n    }\n    /**\n     * @return {?}\n     */\n    clear() {\n        this._map.clear();\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementInstructionMap.prototype._map;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation_timeline_builder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst ONE_FRAME_IN_MILLISECONDS = 1;\n/** @type {?} */\nconst ENTER_TOKEN = ':enter';\n/** @type {?} */\nconst ENTER_TOKEN_REGEX = new RegExp(ENTER_TOKEN, 'g');\n/** @type {?} */\nconst LEAVE_TOKEN = ':leave';\n/** @type {?} */\nconst LEAVE_TOKEN_REGEX = new RegExp(LEAVE_TOKEN, 'g');\n/*\n * The code within this file aims to generate web-animations-compatible keyframes from Angular's\n * animation DSL code.\n *\n * The code below will be converted from:\n *\n * ```\n * sequence([\n *   style({ opacity: 0 }),\n *   animate(1000, style({ opacity: 0 }))\n * ])\n * ```\n *\n * To:\n * ```\n * keyframes = [{ opacity: 0, offset: 0 }, { opacity: 1, offset: 1 }]\n * duration = 1000\n * delay = 0\n * easing = ''\n * ```\n *\n * For this operation to cover the combination of animation verbs (style, animate, group, etc...) a\n * combination of prototypical inheritance, AST traversal and merge-sort-like algorithms are used.\n *\n * [AST Traversal]\n * Each of the animation verbs, when executed, will return an string-map object representing what\n * type of action it is (style, animate, group, etc...) and the data associated with it. This means\n * that when functional composition mix of these functions is evaluated (like in the example above)\n * then it will end up producing a tree of objects representing the animation itself.\n *\n * When this animation object tree is processed by the visitor code below it will visit each of the\n * verb statements within the visitor. And during each visit it will build the context of the\n * animation keyframes by interacting with the `TimelineBuilder`.\n *\n * [TimelineBuilder]\n * This class is responsible for tracking the styles and building a series of keyframe objects for a\n * timeline between a start and end time. The builder starts off with an initial timeline and each\n * time the AST comes across a `group()`, `keyframes()` or a combination of the two wihtin a\n * `sequence()` then it will generate a sub timeline for each step as well as a new one after\n * they are complete.\n *\n * As the AST is traversed, the timing state on each of the timelines will be incremented. If a sub\n * timeline was created (based on one of the cases above) then the parent timeline will attempt to\n * merge the styles used within the sub timelines into itself (only with group() this will happen).\n * This happens with a merge operation (much like how the merge works in mergesort) and it will only\n * copy the most recently used styles from the sub timelines into the parent timeline. This ensures\n * that if the styles are used later on in another phase of the animation then they will be the most\n * up-to-date values.\n *\n * [How Missing Styles Are Updated]\n * Each timeline has a `backFill` property which is responsible for filling in new styles into\n * already processed keyframes if a new style shows up later within the animation sequence.\n *\n * ```\n * sequence([\n *   style({ width: 0 }),\n *   animate(1000, style({ width: 100 })),\n *   animate(1000, style({ width: 200 })),\n *   animate(1000, style({ width: 300 }))\n *   animate(1000, style({ width: 400, height: 400 })) // notice how `height` doesn't exist anywhere\n * else\n * ])\n * ```\n *\n * What is happening here is that the `height` value is added later in the sequence, but is missing\n * from all previous animation steps. Therefore when a keyframe is created it would also be missing\n * from all previous keyframes up until where it is first used. For the timeline keyframe generation\n * to properly fill in the style it will place the previous value (the value from the parent\n * timeline) or a default value of `*` into the backFill object. Given that each of the keyframe\n * styles are objects that prototypically inhert from the backFill object, this means that if a\n * value is added into the backFill then it will automatically propagate any missing values to all\n * keyframes. Therefore the missing `height` value will be properly filled into the already\n * processed keyframes.\n *\n * When a sub-timeline is created it will have its own backFill property. This is done so that\n * styles present within the sub-timeline do not accidentally seep into the previous/future timeline\n * keyframes\n *\n * (For prototypically-inherited contents to be detected a `for(i in obj)` loop must be used.)\n *\n * [Validation]\n * The code in this file is not responsible for validation. That functionality happens with within\n * the `AnimationValidatorVisitor` code.\n */\n/**\n * @param {?} driver\n * @param {?} rootElement\n * @param {?} ast\n * @param {?} enterClassName\n * @param {?} leaveClassName\n * @param {?=} startingStyles\n * @param {?=} finalStyles\n * @param {?=} options\n * @param {?=} subInstructions\n * @param {?=} errors\n * @return {?}\n */\nfunction buildAnimationTimelines(driver, rootElement, ast, enterClassName, leaveClassName, startingStyles = {}, finalStyles = {}, options, subInstructions, errors = []) {\n    return new AnimationTimelineBuilderVisitor().buildKeyframes(driver, rootElement, ast, enterClassName, leaveClassName, startingStyles, finalStyles, options, subInstructions, errors);\n}\nclass AnimationTimelineBuilderVisitor {\n    /**\n     * @param {?} driver\n     * @param {?} rootElement\n     * @param {?} ast\n     * @param {?} enterClassName\n     * @param {?} leaveClassName\n     * @param {?} startingStyles\n     * @param {?} finalStyles\n     * @param {?} options\n     * @param {?=} subInstructions\n     * @param {?=} errors\n     * @return {?}\n     */\n    buildKeyframes(driver, rootElement, ast, enterClassName, leaveClassName, startingStyles, finalStyles, options, subInstructions, errors = []) {\n        subInstructions = subInstructions || new ElementInstructionMap();\n        /** @type {?} */\n        const context = new AnimationTimelineContext(driver, rootElement, subInstructions, enterClassName, leaveClassName, errors, []);\n        context.options = options;\n        context.currentTimeline.setStyles([startingStyles], null, context.errors, options);\n        visitDslNode(this, ast, context);\n        // this checks to see if an actual animation happened\n        /** @type {?} */\n        const timelines = context.timelines.filter((/**\n         * @param {?} timeline\n         * @return {?}\n         */\n        timeline => timeline.containsAnimation()));\n        if (timelines.length && Object.keys(finalStyles).length) {\n            /** @type {?} */\n            const tl = timelines[timelines.length - 1];\n            if (!tl.allowOnlyTimelineStyles()) {\n                tl.setStyles([finalStyles], null, context.errors, options);\n            }\n        }\n        return timelines.length ? timelines.map((/**\n         * @param {?} timeline\n         * @return {?}\n         */\n        timeline => timeline.buildKeyframes())) :\n            [createTimelineInstruction(rootElement, [], [], [], 0, 0, '', false)];\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitTrigger(ast, context) {\n        // these values are not visited in this AST\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitState(ast, context) {\n        // these values are not visited in this AST\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitTransition(ast, context) {\n        // these values are not visited in this AST\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitAnimateChild(ast, context) {\n        /** @type {?} */\n        const elementInstructions = context.subInstructions.consume(context.element);\n        if (elementInstructions) {\n            /** @type {?} */\n            const innerContext = context.createSubContext(ast.options);\n            /** @type {?} */\n            const startTime = context.currentTimeline.currentTime;\n            /** @type {?} */\n            const endTime = this._visitSubInstructions(elementInstructions, innerContext, (/** @type {?} */ (innerContext.options)));\n            if (startTime != endTime) {\n                // we do this on the upper context because we created a sub context for\n                // the sub child animations\n                context.transformIntoNewTimeline(endTime);\n            }\n        }\n        context.previousNode = ast;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitAnimateRef(ast, context) {\n        /** @type {?} */\n        const innerContext = context.createSubContext(ast.options);\n        innerContext.transformIntoNewTimeline();\n        this.visitReference(ast.animation, innerContext);\n        context.transformIntoNewTimeline(innerContext.currentTimeline.currentTime);\n        context.previousNode = ast;\n    }\n    /**\n     * @private\n     * @param {?} instructions\n     * @param {?} context\n     * @param {?} options\n     * @return {?}\n     */\n    _visitSubInstructions(instructions, context, options) {\n        /** @type {?} */\n        const startTime = context.currentTimeline.currentTime;\n        /** @type {?} */\n        let furthestTime = startTime;\n        // this is a special-case for when a user wants to skip a sub\n        // animation from being fired entirely.\n        /** @type {?} */\n        const duration = options.duration != null ? resolveTimingValue(options.duration) : null;\n        /** @type {?} */\n        const delay = options.delay != null ? resolveTimingValue(options.delay) : null;\n        if (duration !== 0) {\n            instructions.forEach((/**\n             * @param {?} instruction\n             * @return {?}\n             */\n            instruction => {\n                /** @type {?} */\n                const instructionTimings = context.appendInstructionToTimeline(instruction, duration, delay);\n                furthestTime =\n                    Math.max(furthestTime, instructionTimings.duration + instructionTimings.delay);\n            }));\n        }\n        return furthestTime;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitReference(ast, context) {\n        context.updateOptions(ast.options, true);\n        visitDslNode(this, ast.animation, context);\n        context.previousNode = ast;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitSequence(ast, context) {\n        /** @type {?} */\n        const subContextCount = context.subContextCount;\n        /** @type {?} */\n        let ctx = context;\n        /** @type {?} */\n        const options = ast.options;\n        if (options && (options.params || options.delay)) {\n            ctx = context.createSubContext(options);\n            ctx.transformIntoNewTimeline();\n            if (options.delay != null) {\n                if (ctx.previousNode.type == 6 /* Style */) {\n                    ctx.currentTimeline.snapshotCurrentStyles();\n                    ctx.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n                }\n                /** @type {?} */\n                const delay = resolveTimingValue(options.delay);\n                ctx.delayNextStep(delay);\n            }\n        }\n        if (ast.steps.length) {\n            ast.steps.forEach((/**\n             * @param {?} s\n             * @return {?}\n             */\n            s => visitDslNode(this, s, ctx)));\n            // this is here just incase the inner steps only contain or end with a style() call\n            ctx.currentTimeline.applyStylesToKeyframe();\n            // this means that some animation function within the sequence\n            // ended up creating a sub timeline (which means the current\n            // timeline cannot overlap with the contents of the sequence)\n            if (ctx.subContextCount > subContextCount) {\n                ctx.transformIntoNewTimeline();\n            }\n        }\n        context.previousNode = ast;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitGroup(ast, context) {\n        /** @type {?} */\n        const innerTimelines = [];\n        /** @type {?} */\n        let furthestTime = context.currentTimeline.currentTime;\n        /** @type {?} */\n        const delay = ast.options && ast.options.delay ? resolveTimingValue(ast.options.delay) : 0;\n        ast.steps.forEach((/**\n         * @param {?} s\n         * @return {?}\n         */\n        s => {\n            /** @type {?} */\n            const innerContext = context.createSubContext(ast.options);\n            if (delay) {\n                innerContext.delayNextStep(delay);\n            }\n            visitDslNode(this, s, innerContext);\n            furthestTime = Math.max(furthestTime, innerContext.currentTimeline.currentTime);\n            innerTimelines.push(innerContext.currentTimeline);\n        }));\n        // this operation is run after the AST loop because otherwise\n        // if the parent timeline's collected styles were updated then\n        // it would pass in invalid data into the new-to-be forked items\n        innerTimelines.forEach((/**\n         * @param {?} timeline\n         * @return {?}\n         */\n        timeline => context.currentTimeline.mergeTimelineCollectedStyles(timeline)));\n        context.transformIntoNewTimeline(furthestTime);\n        context.previousNode = ast;\n    }\n    /**\n     * @private\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    _visitTiming(ast, context) {\n        if (((/** @type {?} */ (ast))).dynamic) {\n            /** @type {?} */\n            const strValue = ((/** @type {?} */ (ast))).strValue;\n            /** @type {?} */\n            const timingValue = context.params ? interpolateParams(strValue, context.params, context.errors) : strValue;\n            return resolveTiming(timingValue, context.errors);\n        }\n        else {\n            return { duration: ast.duration, delay: ast.delay, easing: ast.easing };\n        }\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitAnimate(ast, context) {\n        /** @type {?} */\n        const timings = context.currentAnimateTimings = this._visitTiming(ast.timings, context);\n        /** @type {?} */\n        const timeline = context.currentTimeline;\n        if (timings.delay) {\n            context.incrementTime(timings.delay);\n            timeline.snapshotCurrentStyles();\n        }\n        /** @type {?} */\n        const style = ast.style;\n        if (style.type == 5 /* Keyframes */) {\n            this.visitKeyframes(style, context);\n        }\n        else {\n            context.incrementTime(timings.duration);\n            this.visitStyle((/** @type {?} */ (style)), context);\n            timeline.applyStylesToKeyframe();\n        }\n        context.currentAnimateTimings = null;\n        context.previousNode = ast;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitStyle(ast, context) {\n        /** @type {?} */\n        const timeline = context.currentTimeline;\n        /** @type {?} */\n        const timings = (/** @type {?} */ (context.currentAnimateTimings));\n        // this is a special case for when a style() call\n        // directly follows  an animate() call (but not inside of an animate() call)\n        if (!timings && timeline.getCurrentStyleProperties().length) {\n            timeline.forwardFrame();\n        }\n        /** @type {?} */\n        const easing = (timings && timings.easing) || ast.easing;\n        if (ast.isEmptyStep) {\n            timeline.applyEmptyStep(easing);\n        }\n        else {\n            timeline.setStyles(ast.styles, easing, context.errors, context.options);\n        }\n        context.previousNode = ast;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitKeyframes(ast, context) {\n        /** @type {?} */\n        const currentAnimateTimings = (/** @type {?} */ (context.currentAnimateTimings));\n        /** @type {?} */\n        const startTime = ((/** @type {?} */ (context.currentTimeline))).duration;\n        /** @type {?} */\n        const duration = currentAnimateTimings.duration;\n        /** @type {?} */\n        const innerContext = context.createSubContext();\n        /** @type {?} */\n        const innerTimeline = innerContext.currentTimeline;\n        innerTimeline.easing = currentAnimateTimings.easing;\n        ast.styles.forEach((/**\n         * @param {?} step\n         * @return {?}\n         */\n        step => {\n            /** @type {?} */\n            const offset = step.offset || 0;\n            innerTimeline.forwardTime(offset * duration);\n            innerTimeline.setStyles(step.styles, step.easing, context.errors, context.options);\n            innerTimeline.applyStylesToKeyframe();\n        }));\n        // this will ensure that the parent timeline gets all the styles from\n        // the child even if the new timeline below is not used\n        context.currentTimeline.mergeTimelineCollectedStyles(innerTimeline);\n        // we do this because the window between this timeline and the sub timeline\n        // should ensure that the styles within are exactly the same as they were before\n        context.transformIntoNewTimeline(startTime + duration);\n        context.previousNode = ast;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitQuery(ast, context) {\n        // in the event that the first step before this is a style step we need\n        // to ensure the styles are applied before the children are animated\n        /** @type {?} */\n        const startTime = context.currentTimeline.currentTime;\n        /** @type {?} */\n        const options = (/** @type {?} */ ((ast.options || {})));\n        /** @type {?} */\n        const delay = options.delay ? resolveTimingValue(options.delay) : 0;\n        if (delay &&\n            (context.previousNode.type === 6 /* Style */ ||\n                (startTime == 0 && context.currentTimeline.getCurrentStyleProperties().length))) {\n            context.currentTimeline.snapshotCurrentStyles();\n            context.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n        }\n        /** @type {?} */\n        let furthestTime = startTime;\n        /** @type {?} */\n        const elms = context.invokeQuery(ast.selector, ast.originalSelector, ast.limit, ast.includeSelf, options.optional ? true : false, context.errors);\n        context.currentQueryTotal = elms.length;\n        /** @type {?} */\n        let sameElementTimeline = null;\n        elms.forEach((/**\n         * @param {?} element\n         * @param {?} i\n         * @return {?}\n         */\n        (element, i) => {\n            context.currentQueryIndex = i;\n            /** @type {?} */\n            const innerContext = context.createSubContext(ast.options, element);\n            if (delay) {\n                innerContext.delayNextStep(delay);\n            }\n            if (element === context.element) {\n                sameElementTimeline = innerContext.currentTimeline;\n            }\n            visitDslNode(this, ast.animation, innerContext);\n            // this is here just incase the inner steps only contain or end\n            // with a style() call (which is here to signal that this is a preparatory\n            // call to style an element before it is animated again)\n            innerContext.currentTimeline.applyStylesToKeyframe();\n            /** @type {?} */\n            const endTime = innerContext.currentTimeline.currentTime;\n            furthestTime = Math.max(furthestTime, endTime);\n        }));\n        context.currentQueryIndex = 0;\n        context.currentQueryTotal = 0;\n        context.transformIntoNewTimeline(furthestTime);\n        if (sameElementTimeline) {\n            context.currentTimeline.mergeTimelineCollectedStyles(sameElementTimeline);\n            context.currentTimeline.snapshotCurrentStyles();\n        }\n        context.previousNode = ast;\n    }\n    /**\n     * @param {?} ast\n     * @param {?} context\n     * @return {?}\n     */\n    visitStagger(ast, context) {\n        /** @type {?} */\n        const parentContext = (/** @type {?} */ (context.parentContext));\n        /** @type {?} */\n        const tl = context.currentTimeline;\n        /** @type {?} */\n        const timings = ast.timings;\n        /** @type {?} */\n        const duration = Math.abs(timings.duration);\n        /** @type {?} */\n        const maxTime = duration * (context.currentQueryTotal - 1);\n        /** @type {?} */\n        let delay = duration * context.currentQueryIndex;\n        /** @type {?} */\n        let staggerTransformer = timings.duration < 0 ? 'reverse' : timings.easing;\n        switch (staggerTransformer) {\n            case 'reverse':\n                delay = maxTime - delay;\n                break;\n            case 'full':\n                delay = parentContext.currentStaggerTime;\n                break;\n        }\n        /** @type {?} */\n        const timeline = context.currentTimeline;\n        if (delay) {\n            timeline.delayNextStep(delay);\n        }\n        /** @type {?} */\n        const startingTime = timeline.currentTime;\n        visitDslNode(this, ast.animation, context);\n        context.previousNode = ast;\n        // time = duration + delay\n        // the reason why this computation is so complex is because\n        // the inner timeline may either have a delay value or a stretched\n        // keyframe depending on if a subtimeline is not used or is used.\n        parentContext.currentStaggerTime =\n            (tl.currentTime - startingTime) + (tl.startTime - parentContext.currentTimeline.startTime);\n    }\n}\n/** @type {?} */\nconst DEFAULT_NOOP_PREVIOUS_NODE = (/** @type {?} */ ({}));\nclass AnimationTimelineContext {\n    /**\n     * @param {?} _driver\n     * @param {?} element\n     * @param {?} subInstructions\n     * @param {?} _enterClassName\n     * @param {?} _leaveClassName\n     * @param {?} errors\n     * @param {?} timelines\n     * @param {?=} initialTimeline\n     */\n    constructor(_driver, element, subInstructions, _enterClassName, _leaveClassName, errors, timelines, initialTimeline) {\n        this._driver = _driver;\n        this.element = element;\n        this.subInstructions = subInstructions;\n        this._enterClassName = _enterClassName;\n        this._leaveClassName = _leaveClassName;\n        this.errors = errors;\n        this.timelines = timelines;\n        this.parentContext = null;\n        this.currentAnimateTimings = null;\n        this.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n        this.subContextCount = 0;\n        this.options = {};\n        this.currentQueryIndex = 0;\n        this.currentQueryTotal = 0;\n        this.currentStaggerTime = 0;\n        this.currentTimeline = initialTimeline || new TimelineBuilder(this._driver, element, 0);\n        timelines.push(this.currentTimeline);\n    }\n    /**\n     * @return {?}\n     */\n    get params() {\n        return this.options.params;\n    }\n    /**\n     * @param {?} options\n     * @param {?=} skipIfExists\n     * @return {?}\n     */\n    updateOptions(options, skipIfExists) {\n        if (!options)\n            return;\n        /** @type {?} */\n        const newOptions = (/** @type {?} */ (options));\n        /** @type {?} */\n        let optionsToUpdate = this.options;\n        // NOTE: this will get patched up when other animation methods support duration overrides\n        if (newOptions.duration != null) {\n            ((/** @type {?} */ (optionsToUpdate))).duration = resolveTimingValue(newOptions.duration);\n        }\n        if (newOptions.delay != null) {\n            optionsToUpdate.delay = resolveTimingValue(newOptions.delay);\n        }\n        /** @type {?} */\n        const newParams = newOptions.params;\n        if (newParams) {\n            /** @type {?} */\n            let paramsToUpdate = (/** @type {?} */ (optionsToUpdate.params));\n            if (!paramsToUpdate) {\n                paramsToUpdate = this.options.params = {};\n            }\n            Object.keys(newParams).forEach((/**\n             * @param {?} name\n             * @return {?}\n             */\n            name => {\n                if (!skipIfExists || !paramsToUpdate.hasOwnProperty(name)) {\n                    paramsToUpdate[name] = interpolateParams(newParams[name], paramsToUpdate, this.errors);\n                }\n            }));\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _copyOptions() {\n        /** @type {?} */\n        const options = {};\n        if (this.options) {\n            /** @type {?} */\n            const oldParams = this.options.params;\n            if (oldParams) {\n                /** @type {?} */\n                const params = options['params'] = {};\n                Object.keys(oldParams).forEach((/**\n                 * @param {?} name\n                 * @return {?}\n                 */\n                name => {\n                    params[name] = oldParams[name];\n                }));\n            }\n        }\n        return options;\n    }\n    /**\n     * @param {?=} options\n     * @param {?=} element\n     * @param {?=} newTime\n     * @return {?}\n     */\n    createSubContext(options = null, element, newTime) {\n        /** @type {?} */\n        const target = element || this.element;\n        /** @type {?} */\n        const context = new AnimationTimelineContext(this._driver, target, this.subInstructions, this._enterClassName, this._leaveClassName, this.errors, this.timelines, this.currentTimeline.fork(target, newTime || 0));\n        context.previousNode = this.previousNode;\n        context.currentAnimateTimings = this.currentAnimateTimings;\n        context.options = this._copyOptions();\n        context.updateOptions(options);\n        context.currentQueryIndex = this.currentQueryIndex;\n        context.currentQueryTotal = this.currentQueryTotal;\n        context.parentContext = this;\n        this.subContextCount++;\n        return context;\n    }\n    /**\n     * @param {?=} newTime\n     * @return {?}\n     */\n    transformIntoNewTimeline(newTime) {\n        this.previousNode = DEFAULT_NOOP_PREVIOUS_NODE;\n        this.currentTimeline = this.currentTimeline.fork(this.element, newTime);\n        this.timelines.push(this.currentTimeline);\n        return this.currentTimeline;\n    }\n    /**\n     * @param {?} instruction\n     * @param {?} duration\n     * @param {?} delay\n     * @return {?}\n     */\n    appendInstructionToTimeline(instruction, duration, delay) {\n        /** @type {?} */\n        const updatedTimings = {\n            duration: duration != null ? duration : instruction.duration,\n            delay: this.currentTimeline.currentTime + (delay != null ? delay : 0) + instruction.delay,\n            easing: ''\n        };\n        /** @type {?} */\n        const builder = new SubTimelineBuilder(this._driver, instruction.element, instruction.keyframes, instruction.preStyleProps, instruction.postStyleProps, updatedTimings, instruction.stretchStartingKeyframe);\n        this.timelines.push(builder);\n        return updatedTimings;\n    }\n    /**\n     * @param {?} time\n     * @return {?}\n     */\n    incrementTime(time) {\n        this.currentTimeline.forwardTime(this.currentTimeline.duration + time);\n    }\n    /**\n     * @param {?} delay\n     * @return {?}\n     */\n    delayNextStep(delay) {\n        // negative delays are not yet supported\n        if (delay > 0) {\n            this.currentTimeline.delayNextStep(delay);\n        }\n    }\n    /**\n     * @param {?} selector\n     * @param {?} originalSelector\n     * @param {?} limit\n     * @param {?} includeSelf\n     * @param {?} optional\n     * @param {?} errors\n     * @return {?}\n     */\n    invokeQuery(selector, originalSelector, limit, includeSelf, optional, errors) {\n        /** @type {?} */\n        let results = [];\n        if (includeSelf) {\n            results.push(this.element);\n        }\n        if (selector.length > 0) { // if :self is only used then the selector is empty\n            selector = selector.replace(ENTER_TOKEN_REGEX, '.' + this._enterClassName);\n            selector = selector.replace(LEAVE_TOKEN_REGEX, '.' + this._leaveClassName);\n            /** @type {?} */\n            const multi = limit != 1;\n            /** @type {?} */\n            let elements = this._driver.query(this.element, selector, multi);\n            if (limit !== 0) {\n                elements = limit < 0 ? elements.slice(elements.length + limit, elements.length) :\n                    elements.slice(0, limit);\n            }\n            results.push(...elements);\n        }\n        if (!optional && results.length == 0) {\n            errors.push(`\\`query(\"${originalSelector}\")\\` returned zero elements. (Use \\`query(\"${originalSelector}\", { optional: true })\\` if you wish to allow this.)`);\n        }\n        return results;\n    }\n}\nif (false) {\n    /** @type {?} */\n    AnimationTimelineContext.prototype.parentContext;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.currentTimeline;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.currentAnimateTimings;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.previousNode;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.subContextCount;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.options;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.currentQueryIndex;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.currentQueryTotal;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.currentStaggerTime;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTimelineContext.prototype._driver;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.element;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.subInstructions;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTimelineContext.prototype._enterClassName;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTimelineContext.prototype._leaveClassName;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.errors;\n    /** @type {?} */\n    AnimationTimelineContext.prototype.timelines;\n}\nclass TimelineBuilder {\n    /**\n     * @param {?} _driver\n     * @param {?} element\n     * @param {?} startTime\n     * @param {?=} _elementTimelineStylesLookup\n     */\n    constructor(_driver, element, startTime, _elementTimelineStylesLookup) {\n        this._driver = _driver;\n        this.element = element;\n        this.startTime = startTime;\n        this._elementTimelineStylesLookup = _elementTimelineStylesLookup;\n        this.duration = 0;\n        this._previousKeyframe = {};\n        this._currentKeyframe = {};\n        this._keyframes = new Map();\n        this._styleSummary = {};\n        this._pendingStyles = {};\n        this._backFill = {};\n        this._currentEmptyStepKeyframe = null;\n        if (!this._elementTimelineStylesLookup) {\n            this._elementTimelineStylesLookup = new Map();\n        }\n        this._localTimelineStyles = Object.create(this._backFill, {});\n        this._globalTimelineStyles = (/** @type {?} */ (this._elementTimelineStylesLookup.get(element)));\n        if (!this._globalTimelineStyles) {\n            this._globalTimelineStyles = this._localTimelineStyles;\n            this._elementTimelineStylesLookup.set(element, this._localTimelineStyles);\n        }\n        this._loadKeyframe();\n    }\n    /**\n     * @return {?}\n     */\n    containsAnimation() {\n        switch (this._keyframes.size) {\n            case 0:\n                return false;\n            case 1:\n                return this.getCurrentStyleProperties().length > 0;\n            default:\n                return true;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    getCurrentStyleProperties() {\n        return Object.keys(this._currentKeyframe);\n    }\n    /**\n     * @return {?}\n     */\n    get currentTime() {\n        return this.startTime + this.duration;\n    }\n    /**\n     * @param {?} delay\n     * @return {?}\n     */\n    delayNextStep(delay) {\n        // in the event that a style() step is placed right before a stagger()\n        // and that style() step is the very first style() value in the animation\n        // then we need to make a copy of the keyframe [0, copy, 1] so that the delay\n        // properly applies the style() values to work with the stagger...\n        /** @type {?} */\n        const hasPreStyleStep = this._keyframes.size == 1 && Object.keys(this._pendingStyles).length;\n        if (this.duration || hasPreStyleStep) {\n            this.forwardTime(this.currentTime + delay);\n            if (hasPreStyleStep) {\n                this.snapshotCurrentStyles();\n            }\n        }\n        else {\n            this.startTime += delay;\n        }\n    }\n    /**\n     * @param {?} element\n     * @param {?=} currentTime\n     * @return {?}\n     */\n    fork(element, currentTime) {\n        this.applyStylesToKeyframe();\n        return new TimelineBuilder(this._driver, element, currentTime || this.currentTime, this._elementTimelineStylesLookup);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _loadKeyframe() {\n        if (this._currentKeyframe) {\n            this._previousKeyframe = this._currentKeyframe;\n        }\n        this._currentKeyframe = (/** @type {?} */ (this._keyframes.get(this.duration)));\n        if (!this._currentKeyframe) {\n            this._currentKeyframe = Object.create(this._backFill, {});\n            this._keyframes.set(this.duration, this._currentKeyframe);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    forwardFrame() {\n        this.duration += ONE_FRAME_IN_MILLISECONDS;\n        this._loadKeyframe();\n    }\n    /**\n     * @param {?} time\n     * @return {?}\n     */\n    forwardTime(time) {\n        this.applyStylesToKeyframe();\n        this.duration = time;\n        this._loadKeyframe();\n    }\n    /**\n     * @private\n     * @param {?} prop\n     * @param {?} value\n     * @return {?}\n     */\n    _updateStyle(prop, value) {\n        this._localTimelineStyles[prop] = value;\n        this._globalTimelineStyles[prop] = value;\n        this._styleSummary[prop] = { time: this.currentTime, value };\n    }\n    /**\n     * @return {?}\n     */\n    allowOnlyTimelineStyles() {\n        return this._currentEmptyStepKeyframe !== this._currentKeyframe;\n    }\n    /**\n     * @param {?} easing\n     * @return {?}\n     */\n    applyEmptyStep(easing) {\n        if (easing) {\n            this._previousKeyframe['easing'] = easing;\n        }\n        // special case for animate(duration):\n        // all missing styles are filled with a `*` value then\n        // if any destination styles are filled in later on the same\n        // keyframe then they will override the overridden styles\n        // We use `_globalTimelineStyles` here because there may be\n        // styles in previous keyframes that are not present in this timeline\n        Object.keys(this._globalTimelineStyles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            this._backFill[prop] = this._globalTimelineStyles[prop] || AUTO_STYLE;\n            this._currentKeyframe[prop] = AUTO_STYLE;\n        }));\n        this._currentEmptyStepKeyframe = this._currentKeyframe;\n    }\n    /**\n     * @param {?} input\n     * @param {?} easing\n     * @param {?} errors\n     * @param {?=} options\n     * @return {?}\n     */\n    setStyles(input, easing, errors, options) {\n        if (easing) {\n            this._previousKeyframe['easing'] = easing;\n        }\n        /** @type {?} */\n        const params = (options && options.params) || {};\n        /** @type {?} */\n        const styles = flattenStyles(input, this._globalTimelineStyles);\n        Object.keys(styles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const val = interpolateParams(styles[prop], params, errors);\n            this._pendingStyles[prop] = val;\n            if (!this._localTimelineStyles.hasOwnProperty(prop)) {\n                this._backFill[prop] = this._globalTimelineStyles.hasOwnProperty(prop) ?\n                    this._globalTimelineStyles[prop] :\n                    AUTO_STYLE;\n            }\n            this._updateStyle(prop, val);\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    applyStylesToKeyframe() {\n        /** @type {?} */\n        const styles = this._pendingStyles;\n        /** @type {?} */\n        const props = Object.keys(styles);\n        if (props.length == 0)\n            return;\n        this._pendingStyles = {};\n        props.forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const val = styles[prop];\n            this._currentKeyframe[prop] = val;\n        }));\n        Object.keys(this._localTimelineStyles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            if (!this._currentKeyframe.hasOwnProperty(prop)) {\n                this._currentKeyframe[prop] = this._localTimelineStyles[prop];\n            }\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    snapshotCurrentStyles() {\n        Object.keys(this._localTimelineStyles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const val = this._localTimelineStyles[prop];\n            this._pendingStyles[prop] = val;\n            this._updateStyle(prop, val);\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    getFinalKeyframe() {\n        return this._keyframes.get(this.duration);\n    }\n    /**\n     * @return {?}\n     */\n    get properties() {\n        /** @type {?} */\n        const properties = [];\n        for (let prop in this._currentKeyframe) {\n            properties.push(prop);\n        }\n        return properties;\n    }\n    /**\n     * @param {?} timeline\n     * @return {?}\n     */\n    mergeTimelineCollectedStyles(timeline) {\n        Object.keys(timeline._styleSummary).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const details0 = this._styleSummary[prop];\n            /** @type {?} */\n            const details1 = timeline._styleSummary[prop];\n            if (!details0 || details1.time > details0.time) {\n                this._updateStyle(prop, details1.value);\n            }\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    buildKeyframes() {\n        this.applyStylesToKeyframe();\n        /** @type {?} */\n        const preStyleProps = new Set();\n        /** @type {?} */\n        const postStyleProps = new Set();\n        /** @type {?} */\n        const isEmpty = this._keyframes.size === 1 && this.duration === 0;\n        /** @type {?} */\n        let finalKeyframes = [];\n        this._keyframes.forEach((/**\n         * @param {?} keyframe\n         * @param {?} time\n         * @return {?}\n         */\n        (keyframe, time) => {\n            /** @type {?} */\n            const finalKeyframe = copyStyles(keyframe, true);\n            Object.keys(finalKeyframe).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                /** @type {?} */\n                const value = finalKeyframe[prop];\n                if (value == ɵPRE_STYLE) {\n                    preStyleProps.add(prop);\n                }\n                else if (value == AUTO_STYLE) {\n                    postStyleProps.add(prop);\n                }\n            }));\n            if (!isEmpty) {\n                finalKeyframe['offset'] = time / this.duration;\n            }\n            finalKeyframes.push(finalKeyframe);\n        }));\n        /** @type {?} */\n        const preProps = preStyleProps.size ? iteratorToArray(preStyleProps.values()) : [];\n        /** @type {?} */\n        const postProps = postStyleProps.size ? iteratorToArray(postStyleProps.values()) : [];\n        // special case for a 0-second animation (which is designed just to place styles onscreen)\n        if (isEmpty) {\n            /** @type {?} */\n            const kf0 = finalKeyframes[0];\n            /** @type {?} */\n            const kf1 = copyObj(kf0);\n            kf0['offset'] = 0;\n            kf1['offset'] = 1;\n            finalKeyframes = [kf0, kf1];\n        }\n        return createTimelineInstruction(this.element, finalKeyframes, preProps, postProps, this.duration, this.startTime, this.easing, false);\n    }\n}\nif (false) {\n    /** @type {?} */\n    TimelineBuilder.prototype.duration;\n    /** @type {?} */\n    TimelineBuilder.prototype.easing;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._previousKeyframe;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._currentKeyframe;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._keyframes;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._styleSummary;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._localTimelineStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._globalTimelineStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._pendingStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._backFill;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._currentEmptyStepKeyframe;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._driver;\n    /** @type {?} */\n    TimelineBuilder.prototype.element;\n    /** @type {?} */\n    TimelineBuilder.prototype.startTime;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineBuilder.prototype._elementTimelineStylesLookup;\n}\nclass SubTimelineBuilder extends TimelineBuilder {\n    /**\n     * @param {?} driver\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} preStyleProps\n     * @param {?} postStyleProps\n     * @param {?} timings\n     * @param {?=} _stretchStartingKeyframe\n     */\n    constructor(driver, element, keyframes, preStyleProps, postStyleProps, timings, _stretchStartingKeyframe = false) {\n        super(driver, element, timings.delay);\n        this.element = element;\n        this.keyframes = keyframes;\n        this.preStyleProps = preStyleProps;\n        this.postStyleProps = postStyleProps;\n        this._stretchStartingKeyframe = _stretchStartingKeyframe;\n        this.timings = { duration: timings.duration, delay: timings.delay, easing: timings.easing };\n    }\n    /**\n     * @return {?}\n     */\n    containsAnimation() {\n        return this.keyframes.length > 1;\n    }\n    /**\n     * @return {?}\n     */\n    buildKeyframes() {\n        /** @type {?} */\n        let keyframes = this.keyframes;\n        let { delay, duration, easing } = this.timings;\n        if (this._stretchStartingKeyframe && delay) {\n            /** @type {?} */\n            const newKeyframes = [];\n            /** @type {?} */\n            const totalTime = duration + delay;\n            /** @type {?} */\n            const startingGap = delay / totalTime;\n            // the original starting keyframe now starts once the delay is done\n            /** @type {?} */\n            const newFirstKeyframe = copyStyles(keyframes[0], false);\n            newFirstKeyframe['offset'] = 0;\n            newKeyframes.push(newFirstKeyframe);\n            /** @type {?} */\n            const oldFirstKeyframe = copyStyles(keyframes[0], false);\n            oldFirstKeyframe['offset'] = roundOffset(startingGap);\n            newKeyframes.push(oldFirstKeyframe);\n            /*\n                    When the keyframe is stretched then it means that the delay before the animation\n                    starts is gone. Instead the first keyframe is placed at the start of the animation\n                    and it is then copied to where it starts when the original delay is over. This basically\n                    means nothing animates during that delay, but the styles are still renderered. For this\n                    to work the original offset values that exist in the original keyframes must be \"warped\"\n                    so that they can take the new keyframe + delay into account.\n            \n                    delay=1000, duration=1000, keyframes = 0 .5 1\n            \n                    turns into\n            \n                    delay=0, duration=2000, keyframes = 0 .33 .66 1\n                   */\n            // offsets between 1 ... n -1 are all warped by the keyframe stretch\n            /** @type {?} */\n            const limit = keyframes.length - 1;\n            for (let i = 1; i <= limit; i++) {\n                /** @type {?} */\n                let kf = copyStyles(keyframes[i], false);\n                /** @type {?} */\n                const oldOffset = (/** @type {?} */ (kf['offset']));\n                /** @type {?} */\n                const timeAtKeyframe = delay + oldOffset * duration;\n                kf['offset'] = roundOffset(timeAtKeyframe / totalTime);\n                newKeyframes.push(kf);\n            }\n            // the new starting keyframe should be added at the start\n            duration = totalTime;\n            delay = 0;\n            easing = '';\n            keyframes = newKeyframes;\n        }\n        return createTimelineInstruction(this.element, keyframes, this.preStyleProps, this.postStyleProps, duration, delay, easing, true);\n    }\n}\nif (false) {\n    /** @type {?} */\n    SubTimelineBuilder.prototype.timings;\n    /** @type {?} */\n    SubTimelineBuilder.prototype.element;\n    /** @type {?} */\n    SubTimelineBuilder.prototype.keyframes;\n    /** @type {?} */\n    SubTimelineBuilder.prototype.preStyleProps;\n    /** @type {?} */\n    SubTimelineBuilder.prototype.postStyleProps;\n    /**\n     * @type {?}\n     * @private\n     */\n    SubTimelineBuilder.prototype._stretchStartingKeyframe;\n}\n/**\n * @param {?} offset\n * @param {?=} decimalPoints\n * @return {?}\n */\nfunction roundOffset(offset, decimalPoints = 3) {\n    /** @type {?} */\n    const mult = Math.pow(10, decimalPoints - 1);\n    return Math.round(offset * mult) / mult;\n}\n/**\n * @param {?} input\n * @param {?} allStyles\n * @return {?}\n */\nfunction flattenStyles(input, allStyles) {\n    /** @type {?} */\n    const styles = {};\n    /** @type {?} */\n    let allProperties;\n    input.forEach((/**\n     * @param {?} token\n     * @return {?}\n     */\n    token => {\n        if (token === '*') {\n            allProperties = allProperties || Object.keys(allStyles);\n            allProperties.forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                styles[prop] = AUTO_STYLE;\n            }));\n        }\n        else {\n            copyStyles((/** @type {?} */ (token)), false, styles);\n        }\n    }));\n    return styles;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass Animation {\n    /**\n     * @param {?} _driver\n     * @param {?} input\n     */\n    constructor(_driver, input) {\n        this._driver = _driver;\n        /** @type {?} */\n        const errors = [];\n        /** @type {?} */\n        const ast = buildAnimationAst(_driver, input, errors);\n        if (errors.length) {\n            /** @type {?} */\n            const errorMessage = `animation validation failed:\\n${errors.join('\\n')}`;\n            throw new Error(errorMessage);\n        }\n        this._animationAst = ast;\n    }\n    /**\n     * @param {?} element\n     * @param {?} startingStyles\n     * @param {?} destinationStyles\n     * @param {?} options\n     * @param {?=} subInstructions\n     * @return {?}\n     */\n    buildTimelines(element, startingStyles, destinationStyles, options, subInstructions) {\n        /** @type {?} */\n        const start = Array.isArray(startingStyles) ? normalizeStyles(startingStyles) :\n            (/** @type {?} */ (startingStyles));\n        /** @type {?} */\n        const dest = Array.isArray(destinationStyles) ? normalizeStyles(destinationStyles) :\n            (/** @type {?} */ (destinationStyles));\n        /** @type {?} */\n        const errors = [];\n        subInstructions = subInstructions || new ElementInstructionMap();\n        /** @type {?} */\n        const result = buildAnimationTimelines(this._driver, element, this._animationAst, ENTER_CLASSNAME, LEAVE_CLASSNAME, start, dest, options, subInstructions, errors);\n        if (errors.length) {\n            /** @type {?} */\n            const errorMessage = `animation building failed:\\n${errors.join('\\n')}`;\n            throw new Error(errorMessage);\n        }\n        return result;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    Animation.prototype._animationAst;\n    /**\n     * @type {?}\n     * @private\n     */\n    Animation.prototype._driver;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/style_normalization/animation_style_normalizer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * \\@publicApi\n * @abstract\n */\nclass AnimationStyleNormalizer {\n}\nif (false) {\n    /**\n     * @abstract\n     * @param {?} propertyName\n     * @param {?} errors\n     * @return {?}\n     */\n    AnimationStyleNormalizer.prototype.normalizePropertyName = function (propertyName, errors) { };\n    /**\n     * @abstract\n     * @param {?} userProvidedProperty\n     * @param {?} normalizedProperty\n     * @param {?} value\n     * @param {?} errors\n     * @return {?}\n     */\n    AnimationStyleNormalizer.prototype.normalizeStyleValue = function (userProvidedProperty, normalizedProperty, value, errors) { };\n}\n/**\n * \\@publicApi\n */\nclass NoopAnimationStyleNormalizer {\n    /**\n     * @param {?} propertyName\n     * @param {?} errors\n     * @return {?}\n     */\n    normalizePropertyName(propertyName, errors) {\n        return propertyName;\n    }\n    /**\n     * @param {?} userProvidedProperty\n     * @param {?} normalizedProperty\n     * @param {?} value\n     * @param {?} errors\n     * @return {?}\n     */\n    normalizeStyleValue(userProvidedProperty, normalizedProperty, value, errors) {\n        return (/** @type {?} */ (value));\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/style_normalization/web_animations_style_normalizer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass WebAnimationsStyleNormalizer extends AnimationStyleNormalizer {\n    /**\n     * @param {?} propertyName\n     * @param {?} errors\n     * @return {?}\n     */\n    normalizePropertyName(propertyName, errors) {\n        return dashCaseToCamelCase(propertyName);\n    }\n    /**\n     * @param {?} userProvidedProperty\n     * @param {?} normalizedProperty\n     * @param {?} value\n     * @param {?} errors\n     * @return {?}\n     */\n    normalizeStyleValue(userProvidedProperty, normalizedProperty, value, errors) {\n        /** @type {?} */\n        let unit = '';\n        /** @type {?} */\n        const strVal = value.toString().trim();\n        if (DIMENSIONAL_PROP_MAP[normalizedProperty] && value !== 0 && value !== '0') {\n            if (typeof value === 'number') {\n                unit = 'px';\n            }\n            else {\n                /** @type {?} */\n                const valAndSuffixMatch = value.match(/^[+-]?[\\d\\.]+([a-z]*)$/);\n                if (valAndSuffixMatch && valAndSuffixMatch[1].length == 0) {\n                    errors.push(`Please provide a CSS unit value for ${userProvidedProperty}:${value}`);\n                }\n            }\n        }\n        return strVal + unit;\n    }\n}\nconst ɵ0$1 = /**\n * @return {?}\n */\n() => makeBooleanMap('width,height,minWidth,minHeight,maxWidth,maxHeight,left,top,bottom,right,fontSize,outlineWidth,outlineOffset,paddingTop,paddingLeft,paddingBottom,paddingRight,marginTop,marginLeft,marginBottom,marginRight,borderRadius,borderWidth,borderTopWidth,borderLeftWidth,borderRightWidth,borderBottomWidth,textIndent,perspective'\n    .split(','));\n/** @type {?} */\nconst DIMENSIONAL_PROP_MAP = ((ɵ0$1))();\n/**\n * @param {?} keys\n * @return {?}\n */\nfunction makeBooleanMap(keys) {\n    /** @type {?} */\n    const map = {};\n    keys.forEach((/**\n     * @param {?} key\n     * @return {?}\n     */\n    key => map[key] = true));\n    return map;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation_transition_instruction.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nfunction AnimationTransitionInstruction() { }\nif (false) {\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.element;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.triggerName;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.isRemovalTransition;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.fromState;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.fromStyles;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.toState;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.toStyles;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.timelines;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.queriedElements;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.preStyleProps;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.postStyleProps;\n    /** @type {?} */\n    AnimationTransitionInstruction.prototype.totalTime;\n    /** @type {?|undefined} */\n    AnimationTransitionInstruction.prototype.errors;\n}\n/**\n * @param {?} element\n * @param {?} triggerName\n * @param {?} fromState\n * @param {?} toState\n * @param {?} isRemovalTransition\n * @param {?} fromStyles\n * @param {?} toStyles\n * @param {?} timelines\n * @param {?} queriedElements\n * @param {?} preStyleProps\n * @param {?} postStyleProps\n * @param {?} totalTime\n * @param {?=} errors\n * @return {?}\n */\nfunction createTransitionInstruction(element, triggerName, fromState, toState, isRemovalTransition, fromStyles, toStyles, timelines, queriedElements, preStyleProps, postStyleProps, totalTime, errors) {\n    return {\n        type: 0 /* TransitionAnimation */,\n        element,\n        triggerName,\n        isRemovalTransition,\n        fromState,\n        fromStyles,\n        toState,\n        toStyles,\n        timelines,\n        queriedElements,\n        preStyleProps,\n        postStyleProps,\n        totalTime,\n        errors\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation_transition_factory.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst EMPTY_OBJECT = {};\nclass AnimationTransitionFactory {\n    /**\n     * @param {?} _triggerName\n     * @param {?} ast\n     * @param {?} _stateStyles\n     */\n    constructor(_triggerName, ast, _stateStyles) {\n        this._triggerName = _triggerName;\n        this.ast = ast;\n        this._stateStyles = _stateStyles;\n    }\n    /**\n     * @param {?} currentState\n     * @param {?} nextState\n     * @param {?} element\n     * @param {?} params\n     * @return {?}\n     */\n    match(currentState, nextState, element, params) {\n        return oneOrMoreTransitionsMatch(this.ast.matchers, currentState, nextState, element, params);\n    }\n    /**\n     * @param {?} stateName\n     * @param {?} params\n     * @param {?} errors\n     * @return {?}\n     */\n    buildStyles(stateName, params, errors) {\n        /** @type {?} */\n        const backupStateStyler = this._stateStyles['*'];\n        /** @type {?} */\n        const stateStyler = this._stateStyles[stateName];\n        /** @type {?} */\n        const backupStyles = backupStateStyler ? backupStateStyler.buildStyles(params, errors) : {};\n        return stateStyler ? stateStyler.buildStyles(params, errors) : backupStyles;\n    }\n    /**\n     * @param {?} driver\n     * @param {?} element\n     * @param {?} currentState\n     * @param {?} nextState\n     * @param {?} enterClassName\n     * @param {?} leaveClassName\n     * @param {?=} currentOptions\n     * @param {?=} nextOptions\n     * @param {?=} subInstructions\n     * @param {?=} skipAstBuild\n     * @return {?}\n     */\n    build(driver, element, currentState, nextState, enterClassName, leaveClassName, currentOptions, nextOptions, subInstructions, skipAstBuild) {\n        /** @type {?} */\n        const errors = [];\n        /** @type {?} */\n        const transitionAnimationParams = this.ast.options && this.ast.options.params || EMPTY_OBJECT;\n        /** @type {?} */\n        const currentAnimationParams = currentOptions && currentOptions.params || EMPTY_OBJECT;\n        /** @type {?} */\n        const currentStateStyles = this.buildStyles(currentState, currentAnimationParams, errors);\n        /** @type {?} */\n        const nextAnimationParams = nextOptions && nextOptions.params || EMPTY_OBJECT;\n        /** @type {?} */\n        const nextStateStyles = this.buildStyles(nextState, nextAnimationParams, errors);\n        /** @type {?} */\n        const queriedElements = new Set();\n        /** @type {?} */\n        const preStyleMap = new Map();\n        /** @type {?} */\n        const postStyleMap = new Map();\n        /** @type {?} */\n        const isRemoval = nextState === 'void';\n        /** @type {?} */\n        const animationOptions = { params: Object.assign(Object.assign({}, transitionAnimationParams), nextAnimationParams) };\n        /** @type {?} */\n        const timelines = skipAstBuild ?\n            [] :\n            buildAnimationTimelines(driver, element, this.ast.animation, enterClassName, leaveClassName, currentStateStyles, nextStateStyles, animationOptions, subInstructions, errors);\n        /** @type {?} */\n        let totalTime = 0;\n        timelines.forEach((/**\n         * @param {?} tl\n         * @return {?}\n         */\n        tl => {\n            totalTime = Math.max(tl.duration + tl.delay, totalTime);\n        }));\n        if (errors.length) {\n            return createTransitionInstruction(element, this._triggerName, currentState, nextState, isRemoval, currentStateStyles, nextStateStyles, [], [], preStyleMap, postStyleMap, totalTime, errors);\n        }\n        timelines.forEach((/**\n         * @param {?} tl\n         * @return {?}\n         */\n        tl => {\n            /** @type {?} */\n            const elm = tl.element;\n            /** @type {?} */\n            const preProps = getOrSetAsInMap(preStyleMap, elm, {});\n            tl.preStyleProps.forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => preProps[prop] = true));\n            /** @type {?} */\n            const postProps = getOrSetAsInMap(postStyleMap, elm, {});\n            tl.postStyleProps.forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => postProps[prop] = true));\n            if (elm !== element) {\n                queriedElements.add(elm);\n            }\n        }));\n        /** @type {?} */\n        const queriedElementsList = iteratorToArray(queriedElements.values());\n        return createTransitionInstruction(element, this._triggerName, currentState, nextState, isRemoval, currentStateStyles, nextStateStyles, timelines, queriedElementsList, preStyleMap, postStyleMap, totalTime);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTransitionFactory.prototype._triggerName;\n    /** @type {?} */\n    AnimationTransitionFactory.prototype.ast;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTransitionFactory.prototype._stateStyles;\n}\n/**\n * @param {?} matchFns\n * @param {?} currentState\n * @param {?} nextState\n * @param {?} element\n * @param {?} params\n * @return {?}\n */\nfunction oneOrMoreTransitionsMatch(matchFns, currentState, nextState, element, params) {\n    return matchFns.some((/**\n     * @param {?} fn\n     * @return {?}\n     */\n    fn => fn(currentState, nextState, element, params)));\n}\nclass AnimationStateStyles {\n    /**\n     * @param {?} styles\n     * @param {?} defaultParams\n     */\n    constructor(styles, defaultParams) {\n        this.styles = styles;\n        this.defaultParams = defaultParams;\n    }\n    /**\n     * @param {?} params\n     * @param {?} errors\n     * @return {?}\n     */\n    buildStyles(params, errors) {\n        /** @type {?} */\n        const finalStyles = {};\n        /** @type {?} */\n        const combinedParams = copyObj(this.defaultParams);\n        Object.keys(params).forEach((/**\n         * @param {?} key\n         * @return {?}\n         */\n        key => {\n            /** @type {?} */\n            const value = params[key];\n            if (value != null) {\n                combinedParams[key] = value;\n            }\n        }));\n        this.styles.styles.forEach((/**\n         * @param {?} value\n         * @return {?}\n         */\n        value => {\n            if (typeof value !== 'string') {\n                /** @type {?} */\n                const styleObj = (/** @type {?} */ (value));\n                Object.keys(styleObj).forEach((/**\n                 * @param {?} prop\n                 * @return {?}\n                 */\n                prop => {\n                    /** @type {?} */\n                    let val = styleObj[prop];\n                    if (val.length > 1) {\n                        val = interpolateParams(val, combinedParams, errors);\n                    }\n                    finalStyles[prop] = val;\n                }));\n            }\n        }));\n        return finalStyles;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationStateStyles.prototype.styles;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationStateStyles.prototype.defaultParams;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/dsl/animation_trigger.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@publicApi\n * @param {?} name\n * @param {?} ast\n * @return {?}\n */\nfunction buildTrigger(name, ast) {\n    return new AnimationTrigger(name, ast);\n}\n/**\n * \\@publicApi\n */\nclass AnimationTrigger {\n    /**\n     * @param {?} name\n     * @param {?} ast\n     */\n    constructor(name, ast) {\n        this.name = name;\n        this.ast = ast;\n        this.transitionFactories = [];\n        this.states = {};\n        ast.states.forEach((/**\n         * @param {?} ast\n         * @return {?}\n         */\n        ast => {\n            /** @type {?} */\n            const defaultParams = (ast.options && ast.options.params) || {};\n            this.states[ast.name] = new AnimationStateStyles(ast.style, defaultParams);\n        }));\n        balanceProperties(this.states, 'true', '1');\n        balanceProperties(this.states, 'false', '0');\n        ast.transitions.forEach((/**\n         * @param {?} ast\n         * @return {?}\n         */\n        ast => {\n            this.transitionFactories.push(new AnimationTransitionFactory(name, ast, this.states));\n        }));\n        this.fallbackTransition = createFallbackTransition(name, this.states);\n    }\n    /**\n     * @return {?}\n     */\n    get containsQueries() {\n        return this.ast.queryCount > 0;\n    }\n    /**\n     * @param {?} currentState\n     * @param {?} nextState\n     * @param {?} element\n     * @param {?} params\n     * @return {?}\n     */\n    matchTransition(currentState, nextState, element, params) {\n        /** @type {?} */\n        const entry = this.transitionFactories.find((/**\n         * @param {?} f\n         * @return {?}\n         */\n        f => f.match(currentState, nextState, element, params)));\n        return entry || null;\n    }\n    /**\n     * @param {?} currentState\n     * @param {?} params\n     * @param {?} errors\n     * @return {?}\n     */\n    matchStyles(currentState, params, errors) {\n        return this.fallbackTransition.buildStyles(currentState, params, errors);\n    }\n}\nif (false) {\n    /** @type {?} */\n    AnimationTrigger.prototype.transitionFactories;\n    /** @type {?} */\n    AnimationTrigger.prototype.fallbackTransition;\n    /** @type {?} */\n    AnimationTrigger.prototype.states;\n    /** @type {?} */\n    AnimationTrigger.prototype.name;\n    /** @type {?} */\n    AnimationTrigger.prototype.ast;\n}\n/**\n * @param {?} triggerName\n * @param {?} states\n * @return {?}\n */\nfunction createFallbackTransition(triggerName, states) {\n    /** @type {?} */\n    const matchers = [(/**\n         * @param {?} fromState\n         * @param {?} toState\n         * @return {?}\n         */\n        (fromState, toState) => true)];\n    /** @type {?} */\n    const animation = { type: 2 /* Sequence */, steps: [], options: null };\n    /** @type {?} */\n    const transition = {\n        type: 1 /* Transition */,\n        animation,\n        matchers,\n        options: null,\n        queryCount: 0,\n        depCount: 0\n    };\n    return new AnimationTransitionFactory(triggerName, transition, states);\n}\n/**\n * @param {?} obj\n * @param {?} key1\n * @param {?} key2\n * @return {?}\n */\nfunction balanceProperties(obj, key1, key2) {\n    if (obj.hasOwnProperty(key1)) {\n        if (!obj.hasOwnProperty(key2)) {\n            obj[key2] = obj[key1];\n        }\n    }\n    else if (obj.hasOwnProperty(key2)) {\n        obj[key1] = obj[key2];\n    }\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/timeline_animation_engine.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst EMPTY_INSTRUCTION_MAP = new ElementInstructionMap();\nclass TimelineAnimationEngine {\n    /**\n     * @param {?} bodyNode\n     * @param {?} _driver\n     * @param {?} _normalizer\n     */\n    constructor(bodyNode, _driver, _normalizer) {\n        this.bodyNode = bodyNode;\n        this._driver = _driver;\n        this._normalizer = _normalizer;\n        this._animations = {};\n        this._playersById = {};\n        this.players = [];\n    }\n    /**\n     * @param {?} id\n     * @param {?} metadata\n     * @return {?}\n     */\n    register(id, metadata) {\n        /** @type {?} */\n        const errors = [];\n        /** @type {?} */\n        const ast = buildAnimationAst(this._driver, metadata, errors);\n        if (errors.length) {\n            throw new Error(`Unable to build the animation due to the following errors: ${errors.join('\\n')}`);\n        }\n        else {\n            this._animations[id] = ast;\n        }\n    }\n    /**\n     * @private\n     * @param {?} i\n     * @param {?} preStyles\n     * @param {?=} postStyles\n     * @return {?}\n     */\n    _buildPlayer(i, preStyles, postStyles) {\n        /** @type {?} */\n        const element = i.element;\n        /** @type {?} */\n        const keyframes = normalizeKeyframes(this._driver, this._normalizer, element, i.keyframes, preStyles, postStyles);\n        return this._driver.animate(element, keyframes, i.duration, i.delay, i.easing, [], true);\n    }\n    /**\n     * @param {?} id\n     * @param {?} element\n     * @param {?=} options\n     * @return {?}\n     */\n    create(id, element, options = {}) {\n        /** @type {?} */\n        const errors = [];\n        /** @type {?} */\n        const ast = this._animations[id];\n        /** @type {?} */\n        let instructions;\n        /** @type {?} */\n        const autoStylesMap = new Map();\n        if (ast) {\n            instructions = buildAnimationTimelines(this._driver, element, ast, ENTER_CLASSNAME, LEAVE_CLASSNAME, {}, {}, options, EMPTY_INSTRUCTION_MAP, errors);\n            instructions.forEach((/**\n             * @param {?} inst\n             * @return {?}\n             */\n            inst => {\n                /** @type {?} */\n                const styles = getOrSetAsInMap(autoStylesMap, inst.element, {});\n                inst.postStyleProps.forEach((/**\n                 * @param {?} prop\n                 * @return {?}\n                 */\n                prop => styles[prop] = null));\n            }));\n        }\n        else {\n            errors.push('The requested animation doesn\\'t exist or has already been destroyed');\n            instructions = [];\n        }\n        if (errors.length) {\n            throw new Error(`Unable to create the animation due to the following errors: ${errors.join('\\n')}`);\n        }\n        autoStylesMap.forEach((/**\n         * @param {?} styles\n         * @param {?} element\n         * @return {?}\n         */\n        (styles, element) => {\n            Object.keys(styles).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                styles[prop] = this._driver.computeStyle(element, prop, AUTO_STYLE);\n            }));\n        }));\n        /** @type {?} */\n        const players = instructions.map((/**\n         * @param {?} i\n         * @return {?}\n         */\n        i => {\n            /** @type {?} */\n            const styles = autoStylesMap.get(i.element);\n            return this._buildPlayer(i, {}, styles);\n        }));\n        /** @type {?} */\n        const player = optimizeGroupPlayer(players);\n        this._playersById[id] = player;\n        player.onDestroy((/**\n         * @return {?}\n         */\n        () => this.destroy(id)));\n        this.players.push(player);\n        return player;\n    }\n    /**\n     * @param {?} id\n     * @return {?}\n     */\n    destroy(id) {\n        /** @type {?} */\n        const player = this._getPlayer(id);\n        player.destroy();\n        delete this._playersById[id];\n        /** @type {?} */\n        const index = this.players.indexOf(player);\n        if (index >= 0) {\n            this.players.splice(index, 1);\n        }\n    }\n    /**\n     * @private\n     * @param {?} id\n     * @return {?}\n     */\n    _getPlayer(id) {\n        /** @type {?} */\n        const player = this._playersById[id];\n        if (!player) {\n            throw new Error(`Unable to find the timeline player referenced by ${id}`);\n        }\n        return player;\n    }\n    /**\n     * @param {?} id\n     * @param {?} element\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(id, element, eventName, callback) {\n        // triggerName, fromState, toState are all ignored for timeline animations\n        /** @type {?} */\n        const baseEvent = makeAnimationEvent(element, '', '', '');\n        listenOnPlayer(this._getPlayer(id), eventName, baseEvent, callback);\n        return (/**\n         * @return {?}\n         */\n        () => { });\n    }\n    /**\n     * @param {?} id\n     * @param {?} element\n     * @param {?} command\n     * @param {?} args\n     * @return {?}\n     */\n    command(id, element, command, args) {\n        if (command == 'register') {\n            this.register(id, (/** @type {?} */ (args[0])));\n            return;\n        }\n        if (command == 'create') {\n            /** @type {?} */\n            const options = (/** @type {?} */ ((args[0] || {})));\n            this.create(id, element, options);\n            return;\n        }\n        /** @type {?} */\n        const player = this._getPlayer(id);\n        switch (command) {\n            case 'play':\n                player.play();\n                break;\n            case 'pause':\n                player.pause();\n                break;\n            case 'reset':\n                player.reset();\n                break;\n            case 'restart':\n                player.restart();\n                break;\n            case 'finish':\n                player.finish();\n                break;\n            case 'init':\n                player.init();\n                break;\n            case 'setPosition':\n                player.setPosition(parseFloat((/** @type {?} */ (args[0]))));\n                break;\n            case 'destroy':\n                this.destroy(id);\n                break;\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineAnimationEngine.prototype._animations;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineAnimationEngine.prototype._playersById;\n    /** @type {?} */\n    TimelineAnimationEngine.prototype.players;\n    /** @type {?} */\n    TimelineAnimationEngine.prototype.bodyNode;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineAnimationEngine.prototype._driver;\n    /**\n     * @type {?}\n     * @private\n     */\n    TimelineAnimationEngine.prototype._normalizer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/transition_animation_engine.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst QUEUED_CLASSNAME = 'ng-animate-queued';\n/** @type {?} */\nconst QUEUED_SELECTOR = '.ng-animate-queued';\n/** @type {?} */\nconst DISABLED_CLASSNAME = 'ng-animate-disabled';\n/** @type {?} */\nconst DISABLED_SELECTOR = '.ng-animate-disabled';\n/** @type {?} */\nconst STAR_CLASSNAME = 'ng-star-inserted';\n/** @type {?} */\nconst STAR_SELECTOR = '.ng-star-inserted';\n/** @type {?} */\nconst EMPTY_PLAYER_ARRAY = [];\n/** @type {?} */\nconst NULL_REMOVAL_STATE = {\n    namespaceId: '',\n    setForRemoval: false,\n    setForMove: false,\n    hasAnimation: false,\n    removedBeforeQueried: false\n};\n/** @type {?} */\nconst NULL_REMOVED_QUERIED_STATE = {\n    namespaceId: '',\n    setForMove: false,\n    setForRemoval: false,\n    hasAnimation: false,\n    removedBeforeQueried: true\n};\n/**\n * @record\n */\nfunction TriggerListener() { }\nif (false) {\n    /** @type {?} */\n    TriggerListener.prototype.name;\n    /** @type {?} */\n    TriggerListener.prototype.phase;\n    /** @type {?} */\n    TriggerListener.prototype.callback;\n}\n/**\n * @record\n */\nfunction QueueInstruction() { }\nif (false) {\n    /** @type {?} */\n    QueueInstruction.prototype.element;\n    /** @type {?} */\n    QueueInstruction.prototype.triggerName;\n    /** @type {?} */\n    QueueInstruction.prototype.fromState;\n    /** @type {?} */\n    QueueInstruction.prototype.toState;\n    /** @type {?} */\n    QueueInstruction.prototype.transition;\n    /** @type {?} */\n    QueueInstruction.prototype.player;\n    /** @type {?} */\n    QueueInstruction.prototype.isFallbackTransition;\n}\n/** @type {?} */\nconst REMOVAL_FLAG = '__ng_removed';\n/**\n * @record\n */\nfunction ElementAnimationState() { }\nif (false) {\n    /** @type {?} */\n    ElementAnimationState.prototype.setForRemoval;\n    /** @type {?} */\n    ElementAnimationState.prototype.setForMove;\n    /** @type {?} */\n    ElementAnimationState.prototype.hasAnimation;\n    /** @type {?} */\n    ElementAnimationState.prototype.namespaceId;\n    /** @type {?} */\n    ElementAnimationState.prototype.removedBeforeQueried;\n}\nclass StateValue {\n    /**\n     * @param {?} input\n     * @param {?=} namespaceId\n     */\n    constructor(input, namespaceId = '') {\n        this.namespaceId = namespaceId;\n        /** @type {?} */\n        const isObj = input && input.hasOwnProperty('value');\n        /** @type {?} */\n        const value = isObj ? input['value'] : input;\n        this.value = normalizeTriggerValue(value);\n        if (isObj) {\n            /** @type {?} */\n            const options = copyObj((/** @type {?} */ (input)));\n            delete options['value'];\n            this.options = (/** @type {?} */ (options));\n        }\n        else {\n            this.options = {};\n        }\n        if (!this.options.params) {\n            this.options.params = {};\n        }\n    }\n    /**\n     * @return {?}\n     */\n    get params() {\n        return (/** @type {?} */ (this.options.params));\n    }\n    /**\n     * @param {?} options\n     * @return {?}\n     */\n    absorbOptions(options) {\n        /** @type {?} */\n        const newParams = options.params;\n        if (newParams) {\n            /** @type {?} */\n            const oldParams = (/** @type {?} */ (this.options.params));\n            Object.keys(newParams).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                if (oldParams[prop] == null) {\n                    oldParams[prop] = newParams[prop];\n                }\n            }));\n        }\n    }\n}\nif (false) {\n    /** @type {?} */\n    StateValue.prototype.value;\n    /** @type {?} */\n    StateValue.prototype.options;\n    /** @type {?} */\n    StateValue.prototype.namespaceId;\n}\n/** @type {?} */\nconst VOID_VALUE = 'void';\n/** @type {?} */\nconst DEFAULT_STATE_VALUE = new StateValue(VOID_VALUE);\nclass AnimationTransitionNamespace {\n    /**\n     * @param {?} id\n     * @param {?} hostElement\n     * @param {?} _engine\n     */\n    constructor(id, hostElement, _engine) {\n        this.id = id;\n        this.hostElement = hostElement;\n        this._engine = _engine;\n        this.players = [];\n        this._triggers = {};\n        this._queue = [];\n        this._elementListeners = new Map();\n        this._hostClassName = 'ng-tns-' + id;\n        addClass(hostElement, this._hostClassName);\n    }\n    /**\n     * @param {?} element\n     * @param {?} name\n     * @param {?} phase\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(element, name, phase, callback) {\n        if (!this._triggers.hasOwnProperty(name)) {\n            throw new Error(`Unable to listen on the animation trigger event \"${phase}\" because the animation trigger \"${name}\" doesn\\'t exist!`);\n        }\n        if (phase == null || phase.length == 0) {\n            throw new Error(`Unable to listen on the animation trigger \"${name}\" because the provided event is undefined!`);\n        }\n        if (!isTriggerEventValid(phase)) {\n            throw new Error(`The provided animation trigger event \"${phase}\" for the animation trigger \"${name}\" is not supported!`);\n        }\n        /** @type {?} */\n        const listeners = getOrSetAsInMap(this._elementListeners, element, []);\n        /** @type {?} */\n        const data = { name, phase, callback };\n        listeners.push(data);\n        /** @type {?} */\n        const triggersWithStates = getOrSetAsInMap(this._engine.statesByElement, element, {});\n        if (!triggersWithStates.hasOwnProperty(name)) {\n            addClass(element, NG_TRIGGER_CLASSNAME);\n            addClass(element, NG_TRIGGER_CLASSNAME + '-' + name);\n            triggersWithStates[name] = DEFAULT_STATE_VALUE;\n        }\n        return (/**\n         * @return {?}\n         */\n        () => {\n            // the event listener is removed AFTER the flush has occurred such\n            // that leave animations callbacks can fire (otherwise if the node\n            // is removed in between then the listeners would be deregistered)\n            this._engine.afterFlush((/**\n             * @return {?}\n             */\n            () => {\n                /** @type {?} */\n                const index = listeners.indexOf(data);\n                if (index >= 0) {\n                    listeners.splice(index, 1);\n                }\n                if (!this._triggers[name]) {\n                    delete triggersWithStates[name];\n                }\n            }));\n        });\n    }\n    /**\n     * @param {?} name\n     * @param {?} ast\n     * @return {?}\n     */\n    register(name, ast) {\n        if (this._triggers[name]) {\n            // throw\n            return false;\n        }\n        else {\n            this._triggers[name] = ast;\n            return true;\n        }\n    }\n    /**\n     * @private\n     * @param {?} name\n     * @return {?}\n     */\n    _getTrigger(name) {\n        /** @type {?} */\n        const trigger = this._triggers[name];\n        if (!trigger) {\n            throw new Error(`The provided animation trigger \"${name}\" has not been registered!`);\n        }\n        return trigger;\n    }\n    /**\n     * @param {?} element\n     * @param {?} triggerName\n     * @param {?} value\n     * @param {?=} defaultToFallback\n     * @return {?}\n     */\n    trigger(element, triggerName, value, defaultToFallback = true) {\n        /** @type {?} */\n        const trigger = this._getTrigger(triggerName);\n        /** @type {?} */\n        const player = new TransitionAnimationPlayer(this.id, triggerName, element);\n        /** @type {?} */\n        let triggersWithStates = this._engine.statesByElement.get(element);\n        if (!triggersWithStates) {\n            addClass(element, NG_TRIGGER_CLASSNAME);\n            addClass(element, NG_TRIGGER_CLASSNAME + '-' + triggerName);\n            this._engine.statesByElement.set(element, triggersWithStates = {});\n        }\n        /** @type {?} */\n        let fromState = triggersWithStates[triggerName];\n        /** @type {?} */\n        const toState = new StateValue(value, this.id);\n        /** @type {?} */\n        const isObj = value && value.hasOwnProperty('value');\n        if (!isObj && fromState) {\n            toState.absorbOptions(fromState.options);\n        }\n        triggersWithStates[triggerName] = toState;\n        if (!fromState) {\n            fromState = DEFAULT_STATE_VALUE;\n        }\n        /** @type {?} */\n        const isRemoval = toState.value === VOID_VALUE;\n        // normally this isn't reached by here, however, if an object expression\n        // is passed in then it may be a new object each time. Comparing the value\n        // is important since that will stay the same despite there being a new object.\n        // The removal arc here is special cased because the same element is triggered\n        // twice in the event that it contains animations on the outer/inner portions\n        // of the host container\n        if (!isRemoval && fromState.value === toState.value) {\n            // this means that despite the value not changing, some inner params\n            // have changed which means that the animation final styles need to be applied\n            if (!objEquals(fromState.params, toState.params)) {\n                /** @type {?} */\n                const errors = [];\n                /** @type {?} */\n                const fromStyles = trigger.matchStyles(fromState.value, fromState.params, errors);\n                /** @type {?} */\n                const toStyles = trigger.matchStyles(toState.value, toState.params, errors);\n                if (errors.length) {\n                    this._engine.reportError(errors);\n                }\n                else {\n                    this._engine.afterFlush((/**\n                     * @return {?}\n                     */\n                    () => {\n                        eraseStyles(element, fromStyles);\n                        setStyles(element, toStyles);\n                    }));\n                }\n            }\n            return;\n        }\n        /** @type {?} */\n        const playersOnElement = getOrSetAsInMap(this._engine.playersByElement, element, []);\n        playersOnElement.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            // only remove the player if it is queued on the EXACT same trigger/namespace\n            // we only also deal with queued players here because if the animation has\n            // started then we want to keep the player alive until the flush happens\n            // (which is where the previousPlayers are passed into the new palyer)\n            if (player.namespaceId == this.id && player.triggerName == triggerName && player.queued) {\n                player.destroy();\n            }\n        }));\n        /** @type {?} */\n        let transition = trigger.matchTransition(fromState.value, toState.value, element, toState.params);\n        /** @type {?} */\n        let isFallbackTransition = false;\n        if (!transition) {\n            if (!defaultToFallback)\n                return;\n            transition = trigger.fallbackTransition;\n            isFallbackTransition = true;\n        }\n        this._engine.totalQueuedPlayers++;\n        this._queue.push({ element, triggerName, transition, fromState, toState, player, isFallbackTransition });\n        if (!isFallbackTransition) {\n            addClass(element, QUEUED_CLASSNAME);\n            player.onStart((/**\n             * @return {?}\n             */\n            () => {\n                removeClass(element, QUEUED_CLASSNAME);\n            }));\n        }\n        player.onDone((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            let index = this.players.indexOf(player);\n            if (index >= 0) {\n                this.players.splice(index, 1);\n            }\n            /** @type {?} */\n            const players = this._engine.playersByElement.get(element);\n            if (players) {\n                /** @type {?} */\n                let index = players.indexOf(player);\n                if (index >= 0) {\n                    players.splice(index, 1);\n                }\n            }\n        }));\n        this.players.push(player);\n        playersOnElement.push(player);\n        return player;\n    }\n    /**\n     * @param {?} name\n     * @return {?}\n     */\n    deregister(name) {\n        delete this._triggers[name];\n        this._engine.statesByElement.forEach((/**\n         * @param {?} stateMap\n         * @param {?} element\n         * @return {?}\n         */\n        (stateMap, element) => {\n            delete stateMap[name];\n        }));\n        this._elementListeners.forEach((/**\n         * @param {?} listeners\n         * @param {?} element\n         * @return {?}\n         */\n        (listeners, element) => {\n            this._elementListeners.set(element, listeners.filter((/**\n             * @param {?} entry\n             * @return {?}\n             */\n            entry => {\n                return entry.name != name;\n            })));\n        }));\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    clearElementCache(element) {\n        this._engine.statesByElement.delete(element);\n        this._elementListeners.delete(element);\n        /** @type {?} */\n        const elementPlayers = this._engine.playersByElement.get(element);\n        if (elementPlayers) {\n            elementPlayers.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => player.destroy()));\n            this._engine.playersByElement.delete(element);\n        }\n    }\n    /**\n     * @private\n     * @param {?} rootElement\n     * @param {?} context\n     * @return {?}\n     */\n    _signalRemovalForInnerTriggers(rootElement, context) {\n        /** @type {?} */\n        const elements = this._engine.driver.query(rootElement, NG_TRIGGER_SELECTOR, true);\n        // emulate a leave animation for all inner nodes within this node.\n        // If there are no animations found for any of the nodes then clear the cache\n        // for the element.\n        elements.forEach((/**\n         * @param {?} elm\n         * @return {?}\n         */\n        elm => {\n            // this means that an inner remove() operation has already kicked off\n            // the animation on this element...\n            if (elm[REMOVAL_FLAG])\n                return;\n            /** @type {?} */\n            const namespaces = this._engine.fetchNamespacesByElement(elm);\n            if (namespaces.size) {\n                namespaces.forEach((/**\n                 * @param {?} ns\n                 * @return {?}\n                 */\n                ns => ns.triggerLeaveAnimation(elm, context, false, true)));\n            }\n            else {\n                this.clearElementCache(elm);\n            }\n        }));\n        // If the child elements were removed along with the parent, their animations might not\n        // have completed. Clear all the elements from the cache so we don't end up with a memory leak.\n        this._engine.afterFlushAnimationsDone((/**\n         * @return {?}\n         */\n        () => elements.forEach((/**\n         * @param {?} elm\n         * @return {?}\n         */\n        elm => this.clearElementCache(elm)))));\n    }\n    /**\n     * @param {?} element\n     * @param {?} context\n     * @param {?=} destroyAfterComplete\n     * @param {?=} defaultToFallback\n     * @return {?}\n     */\n    triggerLeaveAnimation(element, context, destroyAfterComplete, defaultToFallback) {\n        /** @type {?} */\n        const triggerStates = this._engine.statesByElement.get(element);\n        if (triggerStates) {\n            /** @type {?} */\n            const players = [];\n            Object.keys(triggerStates).forEach((/**\n             * @param {?} triggerName\n             * @return {?}\n             */\n            triggerName => {\n                // this check is here in the event that an element is removed\n                // twice (both on the host level and the component level)\n                if (this._triggers[triggerName]) {\n                    /** @type {?} */\n                    const player = this.trigger(element, triggerName, VOID_VALUE, defaultToFallback);\n                    if (player) {\n                        players.push(player);\n                    }\n                }\n            }));\n            if (players.length) {\n                this._engine.markElementAsRemoved(this.id, element, true, context);\n                if (destroyAfterComplete) {\n                    optimizeGroupPlayer(players).onDone((/**\n                     * @return {?}\n                     */\n                    () => this._engine.processLeaveNode(element)));\n                }\n                return true;\n            }\n        }\n        return false;\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    prepareLeaveAnimationListeners(element) {\n        /** @type {?} */\n        const listeners = this._elementListeners.get(element);\n        if (listeners) {\n            /** @type {?} */\n            const visitedTriggers = new Set();\n            listeners.forEach((/**\n             * @param {?} listener\n             * @return {?}\n             */\n            listener => {\n                /** @type {?} */\n                const triggerName = listener.name;\n                if (visitedTriggers.has(triggerName))\n                    return;\n                visitedTriggers.add(triggerName);\n                /** @type {?} */\n                const trigger = this._triggers[triggerName];\n                /** @type {?} */\n                const transition = trigger.fallbackTransition;\n                /** @type {?} */\n                const elementStates = (/** @type {?} */ (this._engine.statesByElement.get(element)));\n                /** @type {?} */\n                const fromState = elementStates[triggerName] || DEFAULT_STATE_VALUE;\n                /** @type {?} */\n                const toState = new StateValue(VOID_VALUE);\n                /** @type {?} */\n                const player = new TransitionAnimationPlayer(this.id, triggerName, element);\n                this._engine.totalQueuedPlayers++;\n                this._queue.push({\n                    element,\n                    triggerName,\n                    transition,\n                    fromState,\n                    toState,\n                    player,\n                    isFallbackTransition: true\n                });\n            }));\n        }\n    }\n    /**\n     * @param {?} element\n     * @param {?} context\n     * @return {?}\n     */\n    removeNode(element, context) {\n        /** @type {?} */\n        const engine = this._engine;\n        if (element.childElementCount) {\n            this._signalRemovalForInnerTriggers(element, context);\n        }\n        // this means that a * => VOID animation was detected and kicked off\n        if (this.triggerLeaveAnimation(element, context, true))\n            return;\n        // find the player that is animating and make sure that the\n        // removal is delayed until that player has completed\n        /** @type {?} */\n        let containsPotentialParentTransition = false;\n        if (engine.totalAnimations) {\n            /** @type {?} */\n            const currentPlayers = engine.players.length ? engine.playersByQueriedElement.get(element) : [];\n            // when this `if statement` does not continue forward it means that\n            // a previous animation query has selected the current element and\n            // is animating it. In this situation want to continue forwards and\n            // allow the element to be queued up for animation later.\n            if (currentPlayers && currentPlayers.length) {\n                containsPotentialParentTransition = true;\n            }\n            else {\n                /** @type {?} */\n                let parent = element;\n                while (parent = parent.parentNode) {\n                    /** @type {?} */\n                    const triggers = engine.statesByElement.get(parent);\n                    if (triggers) {\n                        containsPotentialParentTransition = true;\n                        break;\n                    }\n                }\n            }\n        }\n        // at this stage we know that the element will either get removed\n        // during flush or will be picked up by a parent query. Either way\n        // we need to fire the listeners for this element when it DOES get\n        // removed (once the query parent animation is done or after flush)\n        this.prepareLeaveAnimationListeners(element);\n        // whether or not a parent has an animation we need to delay the deferral of the leave\n        // operation until we have more information (which we do after flush() has been called)\n        if (containsPotentialParentTransition) {\n            engine.markElementAsRemoved(this.id, element, false, context);\n        }\n        else {\n            /** @type {?} */\n            const removalFlag = element[REMOVAL_FLAG];\n            if (!removalFlag || removalFlag === NULL_REMOVAL_STATE) {\n                // we do this after the flush has occurred such\n                // that the callbacks can be fired\n                engine.afterFlush((/**\n                 * @return {?}\n                 */\n                () => this.clearElementCache(element)));\n                engine.destroyInnerAnimations(element);\n                engine._onRemovalComplete(element, context);\n            }\n        }\n    }\n    /**\n     * @param {?} element\n     * @param {?} parent\n     * @return {?}\n     */\n    insertNode(element, parent) {\n        addClass(element, this._hostClassName);\n    }\n    /**\n     * @param {?} microtaskId\n     * @return {?}\n     */\n    drainQueuedTransitions(microtaskId) {\n        /** @type {?} */\n        const instructions = [];\n        this._queue.forEach((/**\n         * @param {?} entry\n         * @return {?}\n         */\n        entry => {\n            /** @type {?} */\n            const player = entry.player;\n            if (player.destroyed)\n                return;\n            /** @type {?} */\n            const element = entry.element;\n            /** @type {?} */\n            const listeners = this._elementListeners.get(element);\n            if (listeners) {\n                listeners.forEach((/**\n                 * @param {?} listener\n                 * @return {?}\n                 */\n                (listener) => {\n                    if (listener.name == entry.triggerName) {\n                        /** @type {?} */\n                        const baseEvent = makeAnimationEvent(element, entry.triggerName, entry.fromState.value, entry.toState.value);\n                        ((/** @type {?} */ (baseEvent)))['_data'] = microtaskId;\n                        listenOnPlayer(entry.player, listener.phase, baseEvent, listener.callback);\n                    }\n                }));\n            }\n            if (player.markedForDestroy) {\n                this._engine.afterFlush((/**\n                 * @return {?}\n                 */\n                () => {\n                    // now we can destroy the element properly since the event listeners have\n                    // been bound to the player\n                    player.destroy();\n                }));\n            }\n            else {\n                instructions.push(entry);\n            }\n        }));\n        this._queue = [];\n        return instructions.sort((/**\n         * @param {?} a\n         * @param {?} b\n         * @return {?}\n         */\n        (a, b) => {\n            // if depCount == 0 them move to front\n            // otherwise if a contains b then move back\n            /** @type {?} */\n            const d0 = a.transition.ast.depCount;\n            /** @type {?} */\n            const d1 = b.transition.ast.depCount;\n            if (d0 == 0 || d1 == 0) {\n                return d0 - d1;\n            }\n            return this._engine.driver.containsElement(a.element, b.element) ? 1 : -1;\n        }));\n    }\n    /**\n     * @param {?} context\n     * @return {?}\n     */\n    destroy(context) {\n        this.players.forEach((/**\n         * @param {?} p\n         * @return {?}\n         */\n        p => p.destroy()));\n        this._signalRemovalForInnerTriggers(this.hostElement, context);\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    elementContainsData(element) {\n        /** @type {?} */\n        let containsData = false;\n        if (this._elementListeners.has(element))\n            containsData = true;\n        containsData =\n            (this._queue.find((/**\n             * @param {?} entry\n             * @return {?}\n             */\n            entry => entry.element === element)) ? true : false) || containsData;\n        return containsData;\n    }\n}\nif (false) {\n    /** @type {?} */\n    AnimationTransitionNamespace.prototype.players;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTransitionNamespace.prototype._triggers;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTransitionNamespace.prototype._queue;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTransitionNamespace.prototype._elementListeners;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTransitionNamespace.prototype._hostClassName;\n    /** @type {?} */\n    AnimationTransitionNamespace.prototype.id;\n    /** @type {?} */\n    AnimationTransitionNamespace.prototype.hostElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationTransitionNamespace.prototype._engine;\n}\n/**\n * @record\n */\nfunction QueuedTransition() { }\nif (false) {\n    /** @type {?} */\n    QueuedTransition.prototype.element;\n    /** @type {?} */\n    QueuedTransition.prototype.instruction;\n    /** @type {?} */\n    QueuedTransition.prototype.player;\n}\nclass TransitionAnimationEngine {\n    /**\n     * @param {?} bodyNode\n     * @param {?} driver\n     * @param {?} _normalizer\n     */\n    constructor(bodyNode, driver, _normalizer) {\n        this.bodyNode = bodyNode;\n        this.driver = driver;\n        this._normalizer = _normalizer;\n        this.players = [];\n        this.newHostElements = new Map();\n        this.playersByElement = new Map();\n        this.playersByQueriedElement = new Map();\n        this.statesByElement = new Map();\n        this.disabledNodes = new Set();\n        this.totalAnimations = 0;\n        this.totalQueuedPlayers = 0;\n        this._namespaceLookup = {};\n        this._namespaceList = [];\n        this._flushFns = [];\n        this._whenQuietFns = [];\n        this.namespacesByHostElement = new Map();\n        this.collectedEnterElements = [];\n        this.collectedLeaveElements = [];\n        // this method is designed to be overridden by the code that uses this engine\n        this.onRemovalComplete = (/**\n         * @param {?} element\n         * @param {?} context\n         * @return {?}\n         */\n        (element, context) => { });\n    }\n    /**\n     * \\@internal\n     * @param {?} element\n     * @param {?} context\n     * @return {?}\n     */\n    _onRemovalComplete(element, context) {\n        this.onRemovalComplete(element, context);\n    }\n    /**\n     * @return {?}\n     */\n    get queuedPlayers() {\n        /** @type {?} */\n        const players = [];\n        this._namespaceList.forEach((/**\n         * @param {?} ns\n         * @return {?}\n         */\n        ns => {\n            ns.players.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => {\n                if (player.queued) {\n                    players.push(player);\n                }\n            }));\n        }));\n        return players;\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} hostElement\n     * @return {?}\n     */\n    createNamespace(namespaceId, hostElement) {\n        /** @type {?} */\n        const ns = new AnimationTransitionNamespace(namespaceId, hostElement, this);\n        if (hostElement.parentNode) {\n            this._balanceNamespaceList(ns, hostElement);\n        }\n        else {\n            // defer this later until flush during when the host element has\n            // been inserted so that we know exactly where to place it in\n            // the namespace list\n            this.newHostElements.set(hostElement, ns);\n            // given that this host element is apart of the animation code, it\n            // may or may not be inserted by a parent node that is an of an\n            // animation renderer type. If this happens then we can still have\n            // access to this item when we query for :enter nodes. If the parent\n            // is a renderer then the set data-structure will normalize the entry\n            this.collectEnterElement(hostElement);\n        }\n        return this._namespaceLookup[namespaceId] = ns;\n    }\n    /**\n     * @private\n     * @param {?} ns\n     * @param {?} hostElement\n     * @return {?}\n     */\n    _balanceNamespaceList(ns, hostElement) {\n        /** @type {?} */\n        const limit = this._namespaceList.length - 1;\n        if (limit >= 0) {\n            /** @type {?} */\n            let found = false;\n            for (let i = limit; i >= 0; i--) {\n                /** @type {?} */\n                const nextNamespace = this._namespaceList[i];\n                if (this.driver.containsElement(nextNamespace.hostElement, hostElement)) {\n                    this._namespaceList.splice(i + 1, 0, ns);\n                    found = true;\n                    break;\n                }\n            }\n            if (!found) {\n                this._namespaceList.splice(0, 0, ns);\n            }\n        }\n        else {\n            this._namespaceList.push(ns);\n        }\n        this.namespacesByHostElement.set(hostElement, ns);\n        return ns;\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} hostElement\n     * @return {?}\n     */\n    register(namespaceId, hostElement) {\n        /** @type {?} */\n        let ns = this._namespaceLookup[namespaceId];\n        if (!ns) {\n            ns = this.createNamespace(namespaceId, hostElement);\n        }\n        return ns;\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} name\n     * @param {?} trigger\n     * @return {?}\n     */\n    registerTrigger(namespaceId, name, trigger) {\n        /** @type {?} */\n        let ns = this._namespaceLookup[namespaceId];\n        if (ns && ns.register(name, trigger)) {\n            this.totalAnimations++;\n        }\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} context\n     * @return {?}\n     */\n    destroy(namespaceId, context) {\n        if (!namespaceId)\n            return;\n        /** @type {?} */\n        const ns = this._fetchNamespace(namespaceId);\n        this.afterFlush((/**\n         * @return {?}\n         */\n        () => {\n            this.namespacesByHostElement.delete(ns.hostElement);\n            delete this._namespaceLookup[namespaceId];\n            /** @type {?} */\n            const index = this._namespaceList.indexOf(ns);\n            if (index >= 0) {\n                this._namespaceList.splice(index, 1);\n            }\n        }));\n        this.afterFlushAnimationsDone((/**\n         * @return {?}\n         */\n        () => ns.destroy(context)));\n    }\n    /**\n     * @private\n     * @param {?} id\n     * @return {?}\n     */\n    _fetchNamespace(id) {\n        return this._namespaceLookup[id];\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    fetchNamespacesByElement(element) {\n        // normally there should only be one namespace per element, however\n        // if @triggers are placed on both the component element and then\n        // its host element (within the component code) then there will be\n        // two namespaces returned. We use a set here to simply the dedupe\n        // of namespaces incase there are multiple triggers both the elm and host\n        /** @type {?} */\n        const namespaces = new Set();\n        /** @type {?} */\n        const elementStates = this.statesByElement.get(element);\n        if (elementStates) {\n            /** @type {?} */\n            const keys = Object.keys(elementStates);\n            for (let i = 0; i < keys.length; i++) {\n                /** @type {?} */\n                const nsId = elementStates[keys[i]].namespaceId;\n                if (nsId) {\n                    /** @type {?} */\n                    const ns = this._fetchNamespace(nsId);\n                    if (ns) {\n                        namespaces.add(ns);\n                    }\n                }\n            }\n        }\n        return namespaces;\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    trigger(namespaceId, element, name, value) {\n        if (isElementNode(element)) {\n            /** @type {?} */\n            const ns = this._fetchNamespace(namespaceId);\n            if (ns) {\n                ns.trigger(element, name, value);\n                return true;\n            }\n        }\n        return false;\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} parent\n     * @param {?} insertBefore\n     * @return {?}\n     */\n    insertNode(namespaceId, element, parent, insertBefore) {\n        if (!isElementNode(element))\n            return;\n        // special case for when an element is removed and reinserted (move operation)\n        // when this occurs we do not want to use the element for deletion later\n        /** @type {?} */\n        const details = (/** @type {?} */ (element[REMOVAL_FLAG]));\n        if (details && details.setForRemoval) {\n            details.setForRemoval = false;\n            details.setForMove = true;\n            /** @type {?} */\n            const index = this.collectedLeaveElements.indexOf(element);\n            if (index >= 0) {\n                this.collectedLeaveElements.splice(index, 1);\n            }\n        }\n        // in the event that the namespaceId is blank then the caller\n        // code does not contain any animation code in it, but it is\n        // just being called so that the node is marked as being inserted\n        if (namespaceId) {\n            /** @type {?} */\n            const ns = this._fetchNamespace(namespaceId);\n            // This if-statement is a workaround for router issue #21947.\n            // The router sometimes hits a race condition where while a route\n            // is being instantiated a new navigation arrives, triggering leave\n            // animation of DOM that has not been fully initialized, until this\n            // is resolved, we need to handle the scenario when DOM is not in a\n            // consistent state during the animation.\n            if (ns) {\n                ns.insertNode(element, parent);\n            }\n        }\n        // only *directives and host elements are inserted before\n        if (insertBefore) {\n            this.collectEnterElement(element);\n        }\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    collectEnterElement(element) {\n        this.collectedEnterElements.push(element);\n    }\n    /**\n     * @param {?} element\n     * @param {?} value\n     * @return {?}\n     */\n    markElementAsDisabled(element, value) {\n        if (value) {\n            if (!this.disabledNodes.has(element)) {\n                this.disabledNodes.add(element);\n                addClass(element, DISABLED_CLASSNAME);\n            }\n        }\n        else if (this.disabledNodes.has(element)) {\n            this.disabledNodes.delete(element);\n            removeClass(element, DISABLED_CLASSNAME);\n        }\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} isHostElement\n     * @param {?} context\n     * @return {?}\n     */\n    removeNode(namespaceId, element, isHostElement, context) {\n        if (isElementNode(element)) {\n            /** @type {?} */\n            const ns = namespaceId ? this._fetchNamespace(namespaceId) : null;\n            if (ns) {\n                ns.removeNode(element, context);\n            }\n            else {\n                this.markElementAsRemoved(namespaceId, element, false, context);\n            }\n            if (isHostElement) {\n                /** @type {?} */\n                const hostNS = this.namespacesByHostElement.get(element);\n                if (hostNS && hostNS.id !== namespaceId) {\n                    hostNS.removeNode(element, context);\n                }\n            }\n        }\n        else {\n            this._onRemovalComplete(element, context);\n        }\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?=} hasAnimation\n     * @param {?=} context\n     * @return {?}\n     */\n    markElementAsRemoved(namespaceId, element, hasAnimation, context) {\n        this.collectedLeaveElements.push(element);\n        element[REMOVAL_FLAG] =\n            { namespaceId, setForRemoval: context, hasAnimation, removedBeforeQueried: false };\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} name\n     * @param {?} phase\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(namespaceId, element, name, phase, callback) {\n        if (isElementNode(element)) {\n            return this._fetchNamespace(namespaceId).listen(element, name, phase, callback);\n        }\n        return (/**\n         * @return {?}\n         */\n        () => { });\n    }\n    /**\n     * @private\n     * @param {?} entry\n     * @param {?} subTimelines\n     * @param {?} enterClassName\n     * @param {?} leaveClassName\n     * @param {?=} skipBuildAst\n     * @return {?}\n     */\n    _buildInstruction(entry, subTimelines, enterClassName, leaveClassName, skipBuildAst) {\n        return entry.transition.build(this.driver, entry.element, entry.fromState.value, entry.toState.value, enterClassName, leaveClassName, entry.fromState.options, entry.toState.options, subTimelines, skipBuildAst);\n    }\n    /**\n     * @param {?} containerElement\n     * @return {?}\n     */\n    destroyInnerAnimations(containerElement) {\n        /** @type {?} */\n        let elements = this.driver.query(containerElement, NG_TRIGGER_SELECTOR, true);\n        elements.forEach((/**\n         * @param {?} element\n         * @return {?}\n         */\n        element => this.destroyActiveAnimationsForElement(element)));\n        if (this.playersByQueriedElement.size == 0)\n            return;\n        elements = this.driver.query(containerElement, NG_ANIMATING_SELECTOR, true);\n        elements.forEach((/**\n         * @param {?} element\n         * @return {?}\n         */\n        element => this.finishActiveQueriedAnimationOnElement(element)));\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    destroyActiveAnimationsForElement(element) {\n        /** @type {?} */\n        const players = this.playersByElement.get(element);\n        if (players) {\n            players.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => {\n                // special case for when an element is set for destruction, but hasn't started.\n                // in this situation we want to delay the destruction until the flush occurs\n                // so that any event listeners attached to the player are triggered.\n                if (player.queued) {\n                    player.markedForDestroy = true;\n                }\n                else {\n                    player.destroy();\n                }\n            }));\n        }\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    finishActiveQueriedAnimationOnElement(element) {\n        /** @type {?} */\n        const players = this.playersByQueriedElement.get(element);\n        if (players) {\n            players.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => player.finish()));\n        }\n    }\n    /**\n     * @return {?}\n     */\n    whenRenderingDone() {\n        return new Promise((/**\n         * @param {?} resolve\n         * @return {?}\n         */\n        resolve => {\n            if (this.players.length) {\n                return optimizeGroupPlayer(this.players).onDone((/**\n                 * @return {?}\n                 */\n                () => resolve()));\n            }\n            else {\n                resolve();\n            }\n        }));\n    }\n    /**\n     * @param {?} element\n     * @return {?}\n     */\n    processLeaveNode(element) {\n        /** @type {?} */\n        const details = (/** @type {?} */ (element[REMOVAL_FLAG]));\n        if (details && details.setForRemoval) {\n            // this will prevent it from removing it twice\n            element[REMOVAL_FLAG] = NULL_REMOVAL_STATE;\n            if (details.namespaceId) {\n                this.destroyInnerAnimations(element);\n                /** @type {?} */\n                const ns = this._fetchNamespace(details.namespaceId);\n                if (ns) {\n                    ns.clearElementCache(element);\n                }\n            }\n            this._onRemovalComplete(element, details.setForRemoval);\n        }\n        if (this.driver.matchesElement(element, DISABLED_SELECTOR)) {\n            this.markElementAsDisabled(element, false);\n        }\n        this.driver.query(element, DISABLED_SELECTOR, true).forEach((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => {\n            this.markElementAsDisabled(node, false);\n        }));\n    }\n    /**\n     * @param {?=} microtaskId\n     * @return {?}\n     */\n    flush(microtaskId = -1) {\n        /** @type {?} */\n        let players = [];\n        if (this.newHostElements.size) {\n            this.newHostElements.forEach((/**\n             * @param {?} ns\n             * @param {?} element\n             * @return {?}\n             */\n            (ns, element) => this._balanceNamespaceList(ns, element)));\n            this.newHostElements.clear();\n        }\n        if (this.totalAnimations && this.collectedEnterElements.length) {\n            for (let i = 0; i < this.collectedEnterElements.length; i++) {\n                /** @type {?} */\n                const elm = this.collectedEnterElements[i];\n                addClass(elm, STAR_CLASSNAME);\n            }\n        }\n        if (this._namespaceList.length &&\n            (this.totalQueuedPlayers || this.collectedLeaveElements.length)) {\n            /** @type {?} */\n            const cleanupFns = [];\n            try {\n                players = this._flushAnimations(cleanupFns, microtaskId);\n            }\n            finally {\n                for (let i = 0; i < cleanupFns.length; i++) {\n                    cleanupFns[i]();\n                }\n            }\n        }\n        else {\n            for (let i = 0; i < this.collectedLeaveElements.length; i++) {\n                /** @type {?} */\n                const element = this.collectedLeaveElements[i];\n                this.processLeaveNode(element);\n            }\n        }\n        this.totalQueuedPlayers = 0;\n        this.collectedEnterElements.length = 0;\n        this.collectedLeaveElements.length = 0;\n        this._flushFns.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        this._flushFns = [];\n        if (this._whenQuietFns.length) {\n            // we move these over to a variable so that\n            // if any new callbacks are registered in another\n            // flush they do not populate the existing set\n            /** @type {?} */\n            const quietFns = this._whenQuietFns;\n            this._whenQuietFns = [];\n            if (players.length) {\n                optimizeGroupPlayer(players).onDone((/**\n                 * @return {?}\n                 */\n                () => {\n                    quietFns.forEach((/**\n                     * @param {?} fn\n                     * @return {?}\n                     */\n                    fn => fn()));\n                }));\n            }\n            else {\n                quietFns.forEach((/**\n                 * @param {?} fn\n                 * @return {?}\n                 */\n                fn => fn()));\n            }\n        }\n    }\n    /**\n     * @param {?} errors\n     * @return {?}\n     */\n    reportError(errors) {\n        throw new Error(`Unable to process animations due to the following failed trigger transitions\\n ${errors.join('\\n')}`);\n    }\n    /**\n     * @private\n     * @param {?} cleanupFns\n     * @param {?} microtaskId\n     * @return {?}\n     */\n    _flushAnimations(cleanupFns, microtaskId) {\n        /** @type {?} */\n        const subTimelines = new ElementInstructionMap();\n        /** @type {?} */\n        const skippedPlayers = [];\n        /** @type {?} */\n        const skippedPlayersMap = new Map();\n        /** @type {?} */\n        const queuedInstructions = [];\n        /** @type {?} */\n        const queriedElements = new Map();\n        /** @type {?} */\n        const allPreStyleElements = new Map();\n        /** @type {?} */\n        const allPostStyleElements = new Map();\n        /** @type {?} */\n        const disabledElementsSet = new Set();\n        this.disabledNodes.forEach((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => {\n            disabledElementsSet.add(node);\n            /** @type {?} */\n            const nodesThatAreDisabled = this.driver.query(node, QUEUED_SELECTOR, true);\n            for (let i = 0; i < nodesThatAreDisabled.length; i++) {\n                disabledElementsSet.add(nodesThatAreDisabled[i]);\n            }\n        }));\n        /** @type {?} */\n        const bodyNode = this.bodyNode;\n        /** @type {?} */\n        const allTriggerElements = Array.from(this.statesByElement.keys());\n        /** @type {?} */\n        const enterNodeMap = buildRootMap(allTriggerElements, this.collectedEnterElements);\n        // this must occur before the instructions are built below such that\n        // the :enter queries match the elements (since the timeline queries\n        // are fired during instruction building).\n        /** @type {?} */\n        const enterNodeMapIds = new Map();\n        /** @type {?} */\n        let i = 0;\n        enterNodeMap.forEach((/**\n         * @param {?} nodes\n         * @param {?} root\n         * @return {?}\n         */\n        (nodes, root) => {\n            /** @type {?} */\n            const className = ENTER_CLASSNAME + i++;\n            enterNodeMapIds.set(root, className);\n            nodes.forEach((/**\n             * @param {?} node\n             * @return {?}\n             */\n            node => addClass(node, className)));\n        }));\n        /** @type {?} */\n        const allLeaveNodes = [];\n        /** @type {?} */\n        const mergedLeaveNodes = new Set();\n        /** @type {?} */\n        const leaveNodesWithoutAnimations = new Set();\n        for (let i = 0; i < this.collectedLeaveElements.length; i++) {\n            /** @type {?} */\n            const element = this.collectedLeaveElements[i];\n            /** @type {?} */\n            const details = (/** @type {?} */ (element[REMOVAL_FLAG]));\n            if (details && details.setForRemoval) {\n                allLeaveNodes.push(element);\n                mergedLeaveNodes.add(element);\n                if (details.hasAnimation) {\n                    this.driver.query(element, STAR_SELECTOR, true).forEach((/**\n                     * @param {?} elm\n                     * @return {?}\n                     */\n                    elm => mergedLeaveNodes.add(elm)));\n                }\n                else {\n                    leaveNodesWithoutAnimations.add(element);\n                }\n            }\n        }\n        /** @type {?} */\n        const leaveNodeMapIds = new Map();\n        /** @type {?} */\n        const leaveNodeMap = buildRootMap(allTriggerElements, Array.from(mergedLeaveNodes));\n        leaveNodeMap.forEach((/**\n         * @param {?} nodes\n         * @param {?} root\n         * @return {?}\n         */\n        (nodes, root) => {\n            /** @type {?} */\n            const className = LEAVE_CLASSNAME + i++;\n            leaveNodeMapIds.set(root, className);\n            nodes.forEach((/**\n             * @param {?} node\n             * @return {?}\n             */\n            node => addClass(node, className)));\n        }));\n        cleanupFns.push((/**\n         * @return {?}\n         */\n        () => {\n            enterNodeMap.forEach((/**\n             * @param {?} nodes\n             * @param {?} root\n             * @return {?}\n             */\n            (nodes, root) => {\n                /** @type {?} */\n                const className = (/** @type {?} */ (enterNodeMapIds.get(root)));\n                nodes.forEach((/**\n                 * @param {?} node\n                 * @return {?}\n                 */\n                node => removeClass(node, className)));\n            }));\n            leaveNodeMap.forEach((/**\n             * @param {?} nodes\n             * @param {?} root\n             * @return {?}\n             */\n            (nodes, root) => {\n                /** @type {?} */\n                const className = (/** @type {?} */ (leaveNodeMapIds.get(root)));\n                nodes.forEach((/**\n                 * @param {?} node\n                 * @return {?}\n                 */\n                node => removeClass(node, className)));\n            }));\n            allLeaveNodes.forEach((/**\n             * @param {?} element\n             * @return {?}\n             */\n            element => {\n                this.processLeaveNode(element);\n            }));\n        }));\n        /** @type {?} */\n        const allPlayers = [];\n        /** @type {?} */\n        const erroneousTransitions = [];\n        for (let i = this._namespaceList.length - 1; i >= 0; i--) {\n            /** @type {?} */\n            const ns = this._namespaceList[i];\n            ns.drainQueuedTransitions(microtaskId).forEach((/**\n             * @param {?} entry\n             * @return {?}\n             */\n            entry => {\n                /** @type {?} */\n                const player = entry.player;\n                /** @type {?} */\n                const element = entry.element;\n                allPlayers.push(player);\n                if (this.collectedEnterElements.length) {\n                    /** @type {?} */\n                    const details = (/** @type {?} */ (element[REMOVAL_FLAG]));\n                    // move animations are currently not supported...\n                    if (details && details.setForMove) {\n                        player.destroy();\n                        return;\n                    }\n                }\n                /** @type {?} */\n                const nodeIsOrphaned = !bodyNode || !this.driver.containsElement(bodyNode, element);\n                /** @type {?} */\n                const leaveClassName = (/** @type {?} */ (leaveNodeMapIds.get(element)));\n                /** @type {?} */\n                const enterClassName = (/** @type {?} */ (enterNodeMapIds.get(element)));\n                /** @type {?} */\n                const instruction = (/** @type {?} */ (this._buildInstruction(entry, subTimelines, enterClassName, leaveClassName, nodeIsOrphaned)));\n                if (instruction.errors && instruction.errors.length) {\n                    erroneousTransitions.push(instruction);\n                    return;\n                }\n                // even though the element may not be apart of the DOM, it may\n                // still be added at a later point (due to the mechanics of content\n                // projection and/or dynamic component insertion) therefore it's\n                // important we still style the element.\n                if (nodeIsOrphaned) {\n                    player.onStart((/**\n                     * @return {?}\n                     */\n                    () => eraseStyles(element, instruction.fromStyles)));\n                    player.onDestroy((/**\n                     * @return {?}\n                     */\n                    () => setStyles(element, instruction.toStyles)));\n                    skippedPlayers.push(player);\n                    return;\n                }\n                // if a unmatched transition is queued to go then it SHOULD NOT render\n                // an animation and cancel the previously running animations.\n                if (entry.isFallbackTransition) {\n                    player.onStart((/**\n                     * @return {?}\n                     */\n                    () => eraseStyles(element, instruction.fromStyles)));\n                    player.onDestroy((/**\n                     * @return {?}\n                     */\n                    () => setStyles(element, instruction.toStyles)));\n                    skippedPlayers.push(player);\n                    return;\n                }\n                // this means that if a parent animation uses this animation as a sub trigger\n                // then it will instruct the timeline builder to not add a player delay, but\n                // instead stretch the first keyframe gap up until the animation starts. The\n                // reason this is important is to prevent extra initialization styles from being\n                // required by the user in the animation.\n                instruction.timelines.forEach((/**\n                 * @param {?} tl\n                 * @return {?}\n                 */\n                tl => tl.stretchStartingKeyframe = true));\n                subTimelines.append(element, instruction.timelines);\n                /** @type {?} */\n                const tuple = { instruction, player, element };\n                queuedInstructions.push(tuple);\n                instruction.queriedElements.forEach((/**\n                 * @param {?} element\n                 * @return {?}\n                 */\n                element => getOrSetAsInMap(queriedElements, element, []).push(player)));\n                instruction.preStyleProps.forEach((/**\n                 * @param {?} stringMap\n                 * @param {?} element\n                 * @return {?}\n                 */\n                (stringMap, element) => {\n                    /** @type {?} */\n                    const props = Object.keys(stringMap);\n                    if (props.length) {\n                        /** @type {?} */\n                        let setVal = (/** @type {?} */ (allPreStyleElements.get(element)));\n                        if (!setVal) {\n                            allPreStyleElements.set(element, setVal = new Set());\n                        }\n                        props.forEach((/**\n                         * @param {?} prop\n                         * @return {?}\n                         */\n                        prop => setVal.add(prop)));\n                    }\n                }));\n                instruction.postStyleProps.forEach((/**\n                 * @param {?} stringMap\n                 * @param {?} element\n                 * @return {?}\n                 */\n                (stringMap, element) => {\n                    /** @type {?} */\n                    const props = Object.keys(stringMap);\n                    /** @type {?} */\n                    let setVal = (/** @type {?} */ (allPostStyleElements.get(element)));\n                    if (!setVal) {\n                        allPostStyleElements.set(element, setVal = new Set());\n                    }\n                    props.forEach((/**\n                     * @param {?} prop\n                     * @return {?}\n                     */\n                    prop => setVal.add(prop)));\n                }));\n            }));\n        }\n        if (erroneousTransitions.length) {\n            /** @type {?} */\n            const errors = [];\n            erroneousTransitions.forEach((/**\n             * @param {?} instruction\n             * @return {?}\n             */\n            instruction => {\n                errors.push(`@${instruction.triggerName} has failed due to:\\n`);\n                (/** @type {?} */ (instruction.errors)).forEach((/**\n                 * @param {?} error\n                 * @return {?}\n                 */\n                error => errors.push(`- ${error}\\n`)));\n            }));\n            allPlayers.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => player.destroy()));\n            this.reportError(errors);\n        }\n        /** @type {?} */\n        const allPreviousPlayersMap = new Map();\n        // this map works to tell which element in the DOM tree is contained by\n        // which animation. Further down below this map will get populated once\n        // the players are built and in doing so it can efficiently figure out\n        // if a sub player is skipped due to a parent player having priority.\n        /** @type {?} */\n        const animationElementMap = new Map();\n        queuedInstructions.forEach((/**\n         * @param {?} entry\n         * @return {?}\n         */\n        entry => {\n            /** @type {?} */\n            const element = entry.element;\n            if (subTimelines.has(element)) {\n                animationElementMap.set(element, element);\n                this._beforeAnimationBuild(entry.player.namespaceId, entry.instruction, allPreviousPlayersMap);\n            }\n        }));\n        skippedPlayers.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            /** @type {?} */\n            const element = player.element;\n            /** @type {?} */\n            const previousPlayers = this._getPreviousPlayers(element, false, player.namespaceId, player.triggerName, null);\n            previousPlayers.forEach((/**\n             * @param {?} prevPlayer\n             * @return {?}\n             */\n            prevPlayer => {\n                getOrSetAsInMap(allPreviousPlayersMap, element, []).push(prevPlayer);\n                prevPlayer.destroy();\n            }));\n        }));\n        // this is a special case for nodes that will be removed (either by)\n        // having their own leave animations or by being queried in a container\n        // that will be removed once a parent animation is complete. The idea\n        // here is that * styles must be identical to ! styles because of\n        // backwards compatibility (* is also filled in by default in many places).\n        // Otherwise * styles will return an empty value or auto since the element\n        // that is being getComputedStyle'd will not be visible (since * = destination)\n        /** @type {?} */\n        const replaceNodes = allLeaveNodes.filter((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => {\n            return replacePostStylesAsPre(node, allPreStyleElements, allPostStyleElements);\n        }));\n        // POST STAGE: fill the * styles\n        /** @type {?} */\n        const postStylesMap = new Map();\n        /** @type {?} */\n        const allLeaveQueriedNodes = cloakAndComputeStyles(postStylesMap, this.driver, leaveNodesWithoutAnimations, allPostStyleElements, AUTO_STYLE);\n        allLeaveQueriedNodes.forEach((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => {\n            if (replacePostStylesAsPre(node, allPreStyleElements, allPostStyleElements)) {\n                replaceNodes.push(node);\n            }\n        }));\n        // PRE STAGE: fill the ! styles\n        /** @type {?} */\n        const preStylesMap = new Map();\n        enterNodeMap.forEach((/**\n         * @param {?} nodes\n         * @param {?} root\n         * @return {?}\n         */\n        (nodes, root) => {\n            cloakAndComputeStyles(preStylesMap, this.driver, new Set(nodes), allPreStyleElements, ɵPRE_STYLE);\n        }));\n        replaceNodes.forEach((/**\n         * @param {?} node\n         * @return {?}\n         */\n        node => {\n            /** @type {?} */\n            const post = postStylesMap.get(node);\n            /** @type {?} */\n            const pre = preStylesMap.get(node);\n            postStylesMap.set(node, (/** @type {?} */ (Object.assign(Object.assign({}, post), pre))));\n        }));\n        /** @type {?} */\n        const rootPlayers = [];\n        /** @type {?} */\n        const subPlayers = [];\n        /** @type {?} */\n        const NO_PARENT_ANIMATION_ELEMENT_DETECTED = {};\n        queuedInstructions.forEach((/**\n         * @param {?} entry\n         * @return {?}\n         */\n        entry => {\n            const { element, player, instruction } = entry;\n            // this means that it was never consumed by a parent animation which\n            // means that it is independent and therefore should be set for animation\n            if (subTimelines.has(element)) {\n                if (disabledElementsSet.has(element)) {\n                    player.onDestroy((/**\n                     * @return {?}\n                     */\n                    () => setStyles(element, instruction.toStyles)));\n                    player.disabled = true;\n                    player.overrideTotalTime(instruction.totalTime);\n                    skippedPlayers.push(player);\n                    return;\n                }\n                // this will flow up the DOM and query the map to figure out\n                // if a parent animation has priority over it. In the situation\n                // that a parent is detected then it will cancel the loop. If\n                // nothing is detected, or it takes a few hops to find a parent,\n                // then it will fill in the missing nodes and signal them as having\n                // a detected parent (or a NO_PARENT value via a special constant).\n                /** @type {?} */\n                let parentWithAnimation = NO_PARENT_ANIMATION_ELEMENT_DETECTED;\n                if (animationElementMap.size > 1) {\n                    /** @type {?} */\n                    let elm = element;\n                    /** @type {?} */\n                    const parentsToAdd = [];\n                    while (elm = elm.parentNode) {\n                        /** @type {?} */\n                        const detectedParent = animationElementMap.get(elm);\n                        if (detectedParent) {\n                            parentWithAnimation = detectedParent;\n                            break;\n                        }\n                        parentsToAdd.push(elm);\n                    }\n                    parentsToAdd.forEach((/**\n                     * @param {?} parent\n                     * @return {?}\n                     */\n                    parent => animationElementMap.set(parent, parentWithAnimation)));\n                }\n                /** @type {?} */\n                const innerPlayer = this._buildAnimation(player.namespaceId, instruction, allPreviousPlayersMap, skippedPlayersMap, preStylesMap, postStylesMap);\n                player.setRealPlayer(innerPlayer);\n                if (parentWithAnimation === NO_PARENT_ANIMATION_ELEMENT_DETECTED) {\n                    rootPlayers.push(player);\n                }\n                else {\n                    /** @type {?} */\n                    const parentPlayers = this.playersByElement.get(parentWithAnimation);\n                    if (parentPlayers && parentPlayers.length) {\n                        player.parentPlayer = optimizeGroupPlayer(parentPlayers);\n                    }\n                    skippedPlayers.push(player);\n                }\n            }\n            else {\n                eraseStyles(element, instruction.fromStyles);\n                player.onDestroy((/**\n                 * @return {?}\n                 */\n                () => setStyles(element, instruction.toStyles)));\n                // there still might be a ancestor player animating this\n                // element therefore we will still add it as a sub player\n                // even if its animation may be disabled\n                subPlayers.push(player);\n                if (disabledElementsSet.has(element)) {\n                    skippedPlayers.push(player);\n                }\n            }\n        }));\n        // find all of the sub players' corresponding inner animation player\n        subPlayers.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            // even if any players are not found for a sub animation then it\n            // will still complete itself after the next tick since it's Noop\n            /** @type {?} */\n            const playersForElement = skippedPlayersMap.get(player.element);\n            if (playersForElement && playersForElement.length) {\n                /** @type {?} */\n                const innerPlayer = optimizeGroupPlayer(playersForElement);\n                player.setRealPlayer(innerPlayer);\n            }\n        }));\n        // the reason why we don't actually play the animation is\n        // because all that a skipped player is designed to do is to\n        // fire the start/done transition callback events\n        skippedPlayers.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            if (player.parentPlayer) {\n                player.syncPlayerEvents(player.parentPlayer);\n            }\n            else {\n                player.destroy();\n            }\n        }));\n        // run through all of the queued removals and see if they\n        // were picked up by a query. If not then perform the removal\n        // operation right away unless a parent animation is ongoing.\n        for (let i = 0; i < allLeaveNodes.length; i++) {\n            /** @type {?} */\n            const element = allLeaveNodes[i];\n            /** @type {?} */\n            const details = (/** @type {?} */ (element[REMOVAL_FLAG]));\n            removeClass(element, LEAVE_CLASSNAME);\n            // this means the element has a removal animation that is being\n            // taken care of and therefore the inner elements will hang around\n            // until that animation is over (or the parent queried animation)\n            if (details && details.hasAnimation)\n                continue;\n            /** @type {?} */\n            let players = [];\n            // if this element is queried or if it contains queried children\n            // then we want for the element not to be removed from the page\n            // until the queried animations have finished\n            if (queriedElements.size) {\n                /** @type {?} */\n                let queriedPlayerResults = queriedElements.get(element);\n                if (queriedPlayerResults && queriedPlayerResults.length) {\n                    players.push(...queriedPlayerResults);\n                }\n                /** @type {?} */\n                let queriedInnerElements = this.driver.query(element, NG_ANIMATING_SELECTOR, true);\n                for (let j = 0; j < queriedInnerElements.length; j++) {\n                    /** @type {?} */\n                    let queriedPlayers = queriedElements.get(queriedInnerElements[j]);\n                    if (queriedPlayers && queriedPlayers.length) {\n                        players.push(...queriedPlayers);\n                    }\n                }\n            }\n            /** @type {?} */\n            const activePlayers = players.filter((/**\n             * @param {?} p\n             * @return {?}\n             */\n            p => !p.destroyed));\n            if (activePlayers.length) {\n                removeNodesAfterAnimationDone(this, element, activePlayers);\n            }\n            else {\n                this.processLeaveNode(element);\n            }\n        }\n        // this is required so the cleanup method doesn't remove them\n        allLeaveNodes.length = 0;\n        rootPlayers.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            this.players.push(player);\n            player.onDone((/**\n             * @return {?}\n             */\n            () => {\n                player.destroy();\n                /** @type {?} */\n                const index = this.players.indexOf(player);\n                this.players.splice(index, 1);\n            }));\n            player.play();\n        }));\n        return rootPlayers;\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @return {?}\n     */\n    elementContainsData(namespaceId, element) {\n        /** @type {?} */\n        let containsData = false;\n        /** @type {?} */\n        const details = (/** @type {?} */ (element[REMOVAL_FLAG]));\n        if (details && details.setForRemoval)\n            containsData = true;\n        if (this.playersByElement.has(element))\n            containsData = true;\n        if (this.playersByQueriedElement.has(element))\n            containsData = true;\n        if (this.statesByElement.has(element))\n            containsData = true;\n        return this._fetchNamespace(namespaceId).elementContainsData(element) || containsData;\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    afterFlush(callback) {\n        this._flushFns.push(callback);\n    }\n    /**\n     * @param {?} callback\n     * @return {?}\n     */\n    afterFlushAnimationsDone(callback) {\n        this._whenQuietFns.push(callback);\n    }\n    /**\n     * @private\n     * @param {?} element\n     * @param {?} isQueriedElement\n     * @param {?=} namespaceId\n     * @param {?=} triggerName\n     * @param {?=} toStateValue\n     * @return {?}\n     */\n    _getPreviousPlayers(element, isQueriedElement, namespaceId, triggerName, toStateValue) {\n        /** @type {?} */\n        let players = [];\n        if (isQueriedElement) {\n            /** @type {?} */\n            const queriedElementPlayers = this.playersByQueriedElement.get(element);\n            if (queriedElementPlayers) {\n                players = queriedElementPlayers;\n            }\n        }\n        else {\n            /** @type {?} */\n            const elementPlayers = this.playersByElement.get(element);\n            if (elementPlayers) {\n                /** @type {?} */\n                const isRemovalAnimation = !toStateValue || toStateValue == VOID_VALUE;\n                elementPlayers.forEach((/**\n                 * @param {?} player\n                 * @return {?}\n                 */\n                player => {\n                    if (player.queued)\n                        return;\n                    if (!isRemovalAnimation && player.triggerName != triggerName)\n                        return;\n                    players.push(player);\n                }));\n            }\n        }\n        if (namespaceId || triggerName) {\n            players = players.filter((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => {\n                if (namespaceId && namespaceId != player.namespaceId)\n                    return false;\n                if (triggerName && triggerName != player.triggerName)\n                    return false;\n                return true;\n            }));\n        }\n        return players;\n    }\n    /**\n     * @private\n     * @param {?} namespaceId\n     * @param {?} instruction\n     * @param {?} allPreviousPlayersMap\n     * @return {?}\n     */\n    _beforeAnimationBuild(namespaceId, instruction, allPreviousPlayersMap) {\n        /** @type {?} */\n        const triggerName = instruction.triggerName;\n        /** @type {?} */\n        const rootElement = instruction.element;\n        // when a removal animation occurs, ALL previous players are collected\n        // and destroyed (even if they are outside of the current namespace)\n        /** @type {?} */\n        const targetNameSpaceId = instruction.isRemovalTransition ? undefined : namespaceId;\n        /** @type {?} */\n        const targetTriggerName = instruction.isRemovalTransition ? undefined : triggerName;\n        for (const timelineInstruction of instruction.timelines) {\n            /** @type {?} */\n            const element = timelineInstruction.element;\n            /** @type {?} */\n            const isQueriedElement = element !== rootElement;\n            /** @type {?} */\n            const players = getOrSetAsInMap(allPreviousPlayersMap, element, []);\n            /** @type {?} */\n            const previousPlayers = this._getPreviousPlayers(element, isQueriedElement, targetNameSpaceId, targetTriggerName, instruction.toState);\n            previousPlayers.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => {\n                /** @type {?} */\n                const realPlayer = (/** @type {?} */ (((/** @type {?} */ (player))).getRealPlayer()));\n                if (realPlayer.beforeDestroy) {\n                    realPlayer.beforeDestroy();\n                }\n                player.destroy();\n                players.push(player);\n            }));\n        }\n        // this needs to be done so that the PRE/POST styles can be\n        // computed properly without interfering with the previous animation\n        eraseStyles(rootElement, instruction.fromStyles);\n    }\n    /**\n     * @private\n     * @param {?} namespaceId\n     * @param {?} instruction\n     * @param {?} allPreviousPlayersMap\n     * @param {?} skippedPlayersMap\n     * @param {?} preStylesMap\n     * @param {?} postStylesMap\n     * @return {?}\n     */\n    _buildAnimation(namespaceId, instruction, allPreviousPlayersMap, skippedPlayersMap, preStylesMap, postStylesMap) {\n        /** @type {?} */\n        const triggerName = instruction.triggerName;\n        /** @type {?} */\n        const rootElement = instruction.element;\n        // we first run this so that the previous animation player\n        // data can be passed into the successive animation players\n        /** @type {?} */\n        const allQueriedPlayers = [];\n        /** @type {?} */\n        const allConsumedElements = new Set();\n        /** @type {?} */\n        const allSubElements = new Set();\n        /** @type {?} */\n        const allNewPlayers = instruction.timelines.map((/**\n         * @param {?} timelineInstruction\n         * @return {?}\n         */\n        timelineInstruction => {\n            /** @type {?} */\n            const element = timelineInstruction.element;\n            allConsumedElements.add(element);\n            // FIXME (matsko): make sure to-be-removed animations are removed properly\n            /** @type {?} */\n            const details = element[REMOVAL_FLAG];\n            if (details && details.removedBeforeQueried)\n                return new NoopAnimationPlayer(timelineInstruction.duration, timelineInstruction.delay);\n            /** @type {?} */\n            const isQueriedElement = element !== rootElement;\n            /** @type {?} */\n            const previousPlayers = flattenGroupPlayers((allPreviousPlayersMap.get(element) || EMPTY_PLAYER_ARRAY)\n                .map((/**\n             * @param {?} p\n             * @return {?}\n             */\n            p => p.getRealPlayer())))\n                .filter((/**\n             * @param {?} p\n             * @return {?}\n             */\n            p => {\n                // the `element` is not apart of the AnimationPlayer definition, but\n                // Mock/WebAnimations\n                // use the element within their implementation. This will be added in Angular5 to\n                // AnimationPlayer\n                /** @type {?} */\n                const pp = (/** @type {?} */ (p));\n                return pp.element ? pp.element === element : false;\n            }));\n            /** @type {?} */\n            const preStyles = preStylesMap.get(element);\n            /** @type {?} */\n            const postStyles = postStylesMap.get(element);\n            /** @type {?} */\n            const keyframes = normalizeKeyframes(this.driver, this._normalizer, element, timelineInstruction.keyframes, preStyles, postStyles);\n            /** @type {?} */\n            const player = this._buildPlayer(timelineInstruction, keyframes, previousPlayers);\n            // this means that this particular player belongs to a sub trigger. It is\n            // important that we match this player up with the corresponding (@trigger.listener)\n            if (timelineInstruction.subTimeline && skippedPlayersMap) {\n                allSubElements.add(element);\n            }\n            if (isQueriedElement) {\n                /** @type {?} */\n                const wrappedPlayer = new TransitionAnimationPlayer(namespaceId, triggerName, element);\n                wrappedPlayer.setRealPlayer(player);\n                allQueriedPlayers.push(wrappedPlayer);\n            }\n            return player;\n        }));\n        allQueriedPlayers.forEach((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => {\n            getOrSetAsInMap(this.playersByQueriedElement, player.element, []).push(player);\n            player.onDone((/**\n             * @return {?}\n             */\n            () => deleteOrUnsetInMap(this.playersByQueriedElement, player.element, player)));\n        }));\n        allConsumedElements.forEach((/**\n         * @param {?} element\n         * @return {?}\n         */\n        element => addClass(element, NG_ANIMATING_CLASSNAME)));\n        /** @type {?} */\n        const player = optimizeGroupPlayer(allNewPlayers);\n        player.onDestroy((/**\n         * @return {?}\n         */\n        () => {\n            allConsumedElements.forEach((/**\n             * @param {?} element\n             * @return {?}\n             */\n            element => removeClass(element, NG_ANIMATING_CLASSNAME)));\n            setStyles(rootElement, instruction.toStyles);\n        }));\n        // this basically makes all of the callbacks for sub element animations\n        // be dependent on the upper players for when they finish\n        allSubElements.forEach((/**\n         * @param {?} element\n         * @return {?}\n         */\n        element => {\n            getOrSetAsInMap(skippedPlayersMap, element, []).push(player);\n        }));\n        return player;\n    }\n    /**\n     * @private\n     * @param {?} instruction\n     * @param {?} keyframes\n     * @param {?} previousPlayers\n     * @return {?}\n     */\n    _buildPlayer(instruction, keyframes, previousPlayers) {\n        if (keyframes.length > 0) {\n            return this.driver.animate(instruction.element, keyframes, instruction.duration, instruction.delay, instruction.easing, previousPlayers);\n        }\n        // special case for when an empty transition|definition is provided\n        // ... there is no point in rendering an empty animation\n        return new NoopAnimationPlayer(instruction.duration, instruction.delay);\n    }\n}\nif (false) {\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.players;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.newHostElements;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.playersByElement;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.playersByQueriedElement;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.statesByElement;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.disabledNodes;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.totalAnimations;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.totalQueuedPlayers;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationEngine.prototype._namespaceLookup;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationEngine.prototype._namespaceList;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationEngine.prototype._flushFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationEngine.prototype._whenQuietFns;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.namespacesByHostElement;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.collectedEnterElements;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.collectedLeaveElements;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.onRemovalComplete;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.bodyNode;\n    /** @type {?} */\n    TransitionAnimationEngine.prototype.driver;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationEngine.prototype._normalizer;\n}\nclass TransitionAnimationPlayer {\n    /**\n     * @param {?} namespaceId\n     * @param {?} triggerName\n     * @param {?} element\n     */\n    constructor(namespaceId, triggerName, element) {\n        this.namespaceId = namespaceId;\n        this.triggerName = triggerName;\n        this.element = element;\n        this._player = new NoopAnimationPlayer();\n        this._containsRealPlayer = false;\n        this._queuedCallbacks = {};\n        this.destroyed = false;\n        this.markedForDestroy = false;\n        this.disabled = false;\n        this.queued = true;\n        this.totalTime = 0;\n    }\n    /**\n     * @param {?} player\n     * @return {?}\n     */\n    setRealPlayer(player) {\n        if (this._containsRealPlayer)\n            return;\n        this._player = player;\n        Object.keys(this._queuedCallbacks).forEach((/**\n         * @param {?} phase\n         * @return {?}\n         */\n        phase => {\n            this._queuedCallbacks[phase].forEach((/**\n             * @param {?} callback\n             * @return {?}\n             */\n            callback => listenOnPlayer(player, phase, undefined, callback)));\n        }));\n        this._queuedCallbacks = {};\n        this._containsRealPlayer = true;\n        this.overrideTotalTime(player.totalTime);\n        ((/** @type {?} */ (this))).queued = false;\n    }\n    /**\n     * @return {?}\n     */\n    getRealPlayer() {\n        return this._player;\n    }\n    /**\n     * @param {?} totalTime\n     * @return {?}\n     */\n    overrideTotalTime(totalTime) {\n        ((/** @type {?} */ (this))).totalTime = totalTime;\n    }\n    /**\n     * @param {?} player\n     * @return {?}\n     */\n    syncPlayerEvents(player) {\n        /** @type {?} */\n        const p = (/** @type {?} */ (this._player));\n        if (p.triggerCallback) {\n            player.onStart((/**\n             * @return {?}\n             */\n            () => (/** @type {?} */ (p.triggerCallback))('start')));\n        }\n        player.onDone((/**\n         * @return {?}\n         */\n        () => this.finish()));\n        player.onDestroy((/**\n         * @return {?}\n         */\n        () => this.destroy()));\n    }\n    /**\n     * @private\n     * @param {?} name\n     * @param {?} callback\n     * @return {?}\n     */\n    _queueEvent(name, callback) {\n        getOrSetAsInMap(this._queuedCallbacks, name, []).push(callback);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDone(fn) {\n        if (this.queued) {\n            this._queueEvent('done', fn);\n        }\n        this._player.onDone(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onStart(fn) {\n        if (this.queued) {\n            this._queueEvent('start', fn);\n        }\n        this._player.onStart(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDestroy(fn) {\n        if (this.queued) {\n            this._queueEvent('destroy', fn);\n        }\n        this._player.onDestroy(fn);\n    }\n    /**\n     * @return {?}\n     */\n    init() {\n        this._player.init();\n    }\n    /**\n     * @return {?}\n     */\n    hasStarted() {\n        return this.queued ? false : this._player.hasStarted();\n    }\n    /**\n     * @return {?}\n     */\n    play() {\n        !this.queued && this._player.play();\n    }\n    /**\n     * @return {?}\n     */\n    pause() {\n        !this.queued && this._player.pause();\n    }\n    /**\n     * @return {?}\n     */\n    restart() {\n        !this.queued && this._player.restart();\n    }\n    /**\n     * @return {?}\n     */\n    finish() {\n        this._player.finish();\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        ((/** @type {?} */ (this))).destroyed = true;\n        this._player.destroy();\n    }\n    /**\n     * @return {?}\n     */\n    reset() {\n        !this.queued && this._player.reset();\n    }\n    /**\n     * @param {?} p\n     * @return {?}\n     */\n    setPosition(p) {\n        if (!this.queued) {\n            this._player.setPosition(p);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    getPosition() {\n        return this.queued ? 0 : this._player.getPosition();\n    }\n    /**\n     * \\@internal\n     * @param {?} phaseName\n     * @return {?}\n     */\n    triggerCallback(phaseName) {\n        /** @type {?} */\n        const p = (/** @type {?} */ (this._player));\n        if (p.triggerCallback) {\n            p.triggerCallback(phaseName);\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationPlayer.prototype._player;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationPlayer.prototype._containsRealPlayer;\n    /**\n     * @type {?}\n     * @private\n     */\n    TransitionAnimationPlayer.prototype._queuedCallbacks;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.destroyed;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.parentPlayer;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.markedForDestroy;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.disabled;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.queued;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.totalTime;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.namespaceId;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.triggerName;\n    /** @type {?} */\n    TransitionAnimationPlayer.prototype.element;\n}\n/**\n * @param {?} map\n * @param {?} key\n * @param {?} value\n * @return {?}\n */\nfunction deleteOrUnsetInMap(map, key, value) {\n    /** @type {?} */\n    let currentValues;\n    if (map instanceof Map) {\n        currentValues = map.get(key);\n        if (currentValues) {\n            if (currentValues.length) {\n                /** @type {?} */\n                const index = currentValues.indexOf(value);\n                currentValues.splice(index, 1);\n            }\n            if (currentValues.length == 0) {\n                map.delete(key);\n            }\n        }\n    }\n    else {\n        currentValues = map[key];\n        if (currentValues) {\n            if (currentValues.length) {\n                /** @type {?} */\n                const index = currentValues.indexOf(value);\n                currentValues.splice(index, 1);\n            }\n            if (currentValues.length == 0) {\n                delete map[key];\n            }\n        }\n    }\n    return currentValues;\n}\n/**\n * @param {?} value\n * @return {?}\n */\nfunction normalizeTriggerValue(value) {\n    // we use `!= null` here because it's the most simple\n    // way to test against a \"falsy\" value without mixing\n    // in empty strings or a zero value. DO NOT OPTIMIZE.\n    return value != null ? value : null;\n}\n/**\n * @param {?} node\n * @return {?}\n */\nfunction isElementNode(node) {\n    return node && node['nodeType'] === 1;\n}\n/**\n * @param {?} eventName\n * @return {?}\n */\nfunction isTriggerEventValid(eventName) {\n    return eventName == 'start' || eventName == 'done';\n}\n/**\n * @param {?} element\n * @param {?=} value\n * @return {?}\n */\nfunction cloakElement(element, value) {\n    /** @type {?} */\n    const oldValue = element.style.display;\n    element.style.display = value != null ? value : 'none';\n    return oldValue;\n}\n/**\n * @param {?} valuesMap\n * @param {?} driver\n * @param {?} elements\n * @param {?} elementPropsMap\n * @param {?} defaultStyle\n * @return {?}\n */\nfunction cloakAndComputeStyles(valuesMap, driver, elements, elementPropsMap, defaultStyle) {\n    /** @type {?} */\n    const cloakVals = [];\n    elements.forEach((/**\n     * @param {?} element\n     * @return {?}\n     */\n    element => cloakVals.push(cloakElement(element))));\n    /** @type {?} */\n    const failedElements = [];\n    elementPropsMap.forEach((/**\n     * @param {?} props\n     * @param {?} element\n     * @return {?}\n     */\n    (props, element) => {\n        /** @type {?} */\n        const styles = {};\n        props.forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const value = styles[prop] = driver.computeStyle(element, prop, defaultStyle);\n            // there is no easy way to detect this because a sub element could be removed\n            // by a parent animation element being detached.\n            if (!value || value.length == 0) {\n                element[REMOVAL_FLAG] = NULL_REMOVED_QUERIED_STATE;\n                failedElements.push(element);\n            }\n        }));\n        valuesMap.set(element, styles);\n    }));\n    // we use a index variable here since Set.forEach(a, i) does not return\n    // an index value for the closure (but instead just the value)\n    /** @type {?} */\n    let i = 0;\n    elements.forEach((/**\n     * @param {?} element\n     * @return {?}\n     */\n    element => cloakElement(element, cloakVals[i++])));\n    return failedElements;\n}\n/*\nSince the Angular renderer code will return a collection of inserted\nnodes in all areas of a DOM tree, it's up to this algorithm to figure\nout which nodes are roots for each animation @trigger.\n\nBy placing each inserted node into a Set and traversing upwards, it\nis possible to find the @trigger elements and well any direct *star\ninsertion nodes, if a @trigger root is found then the enter element\nis placed into the Map[@trigger] spot.\n */\n/**\n * @param {?} roots\n * @param {?} nodes\n * @return {?}\n */\nfunction buildRootMap(roots, nodes) {\n    /** @type {?} */\n    const rootMap = new Map();\n    roots.forEach((/**\n     * @param {?} root\n     * @return {?}\n     */\n    root => rootMap.set(root, [])));\n    if (nodes.length == 0)\n        return rootMap;\n    /** @type {?} */\n    const NULL_NODE = 1;\n    /** @type {?} */\n    const nodeSet = new Set(nodes);\n    /** @type {?} */\n    const localRootMap = new Map();\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    function getRoot(node) {\n        if (!node)\n            return NULL_NODE;\n        /** @type {?} */\n        let root = localRootMap.get(node);\n        if (root)\n            return root;\n        /** @type {?} */\n        const parent = node.parentNode;\n        if (rootMap.has(parent)) { // ngIf inside @trigger\n            root = parent;\n        }\n        else if (nodeSet.has(parent)) { // ngIf inside ngIf\n            root = NULL_NODE;\n        }\n        else { // recurse upwards\n            root = getRoot(parent);\n        }\n        localRootMap.set(node, root);\n        return root;\n    }\n    nodes.forEach((/**\n     * @param {?} node\n     * @return {?}\n     */\n    node => {\n        /** @type {?} */\n        const root = getRoot(node);\n        if (root !== NULL_NODE) {\n            (/** @type {?} */ (rootMap.get(root))).push(node);\n        }\n    }));\n    return rootMap;\n}\n/** @type {?} */\nconst CLASSES_CACHE_KEY = '$$classes';\n/**\n * @param {?} element\n * @param {?} className\n * @return {?}\n */\nfunction containsClass(element, className) {\n    if (element.classList) {\n        return element.classList.contains(className);\n    }\n    else {\n        /** @type {?} */\n        const classes = element[CLASSES_CACHE_KEY];\n        return classes && classes[className];\n    }\n}\n/**\n * @param {?} element\n * @param {?} className\n * @return {?}\n */\nfunction addClass(element, className) {\n    if (element.classList) {\n        element.classList.add(className);\n    }\n    else {\n        /** @type {?} */\n        let classes = element[CLASSES_CACHE_KEY];\n        if (!classes) {\n            classes = element[CLASSES_CACHE_KEY] = {};\n        }\n        classes[className] = true;\n    }\n}\n/**\n * @param {?} element\n * @param {?} className\n * @return {?}\n */\nfunction removeClass(element, className) {\n    if (element.classList) {\n        element.classList.remove(className);\n    }\n    else {\n        /** @type {?} */\n        let classes = element[CLASSES_CACHE_KEY];\n        if (classes) {\n            delete classes[className];\n        }\n    }\n}\n/**\n * @param {?} engine\n * @param {?} element\n * @param {?} players\n * @return {?}\n */\nfunction removeNodesAfterAnimationDone(engine, element, players) {\n    optimizeGroupPlayer(players).onDone((/**\n     * @return {?}\n     */\n    () => engine.processLeaveNode(element)));\n}\n/**\n * @param {?} players\n * @return {?}\n */\nfunction flattenGroupPlayers(players) {\n    /** @type {?} */\n    const finalPlayers = [];\n    _flattenGroupPlayersRecur(players, finalPlayers);\n    return finalPlayers;\n}\n/**\n * @param {?} players\n * @param {?} finalPlayers\n * @return {?}\n */\nfunction _flattenGroupPlayersRecur(players, finalPlayers) {\n    for (let i = 0; i < players.length; i++) {\n        /** @type {?} */\n        const player = players[i];\n        if (player instanceof ɵAnimationGroupPlayer) {\n            _flattenGroupPlayersRecur(player.players, finalPlayers);\n        }\n        else {\n            finalPlayers.push(player);\n        }\n    }\n}\n/**\n * @param {?} a\n * @param {?} b\n * @return {?}\n */\nfunction objEquals(a, b) {\n    /** @type {?} */\n    const k1 = Object.keys(a);\n    /** @type {?} */\n    const k2 = Object.keys(b);\n    if (k1.length != k2.length)\n        return false;\n    for (let i = 0; i < k1.length; i++) {\n        /** @type {?} */\n        const prop = k1[i];\n        if (!b.hasOwnProperty(prop) || a[prop] !== b[prop])\n            return false;\n    }\n    return true;\n}\n/**\n * @param {?} element\n * @param {?} allPreStyleElements\n * @param {?} allPostStyleElements\n * @return {?}\n */\nfunction replacePostStylesAsPre(element, allPreStyleElements, allPostStyleElements) {\n    /** @type {?} */\n    const postEntry = allPostStyleElements.get(element);\n    if (!postEntry)\n        return false;\n    /** @type {?} */\n    let preEntry = allPreStyleElements.get(element);\n    if (preEntry) {\n        postEntry.forEach((/**\n         * @param {?} data\n         * @return {?}\n         */\n        data => (/** @type {?} */ (preEntry)).add(data)));\n    }\n    else {\n        allPreStyleElements.set(element, postEntry);\n    }\n    allPostStyleElements.delete(element);\n    return true;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/animation_engine_next.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass AnimationEngine {\n    /**\n     * @param {?} bodyNode\n     * @param {?} _driver\n     * @param {?} normalizer\n     */\n    constructor(bodyNode, _driver, normalizer) {\n        this.bodyNode = bodyNode;\n        this._driver = _driver;\n        this._triggerCache = {};\n        // this method is designed to be overridden by the code that uses this engine\n        this.onRemovalComplete = (/**\n         * @param {?} element\n         * @param {?} context\n         * @return {?}\n         */\n        (element, context) => { });\n        this._transitionEngine = new TransitionAnimationEngine(bodyNode, _driver, normalizer);\n        this._timelineEngine = new TimelineAnimationEngine(bodyNode, _driver, normalizer);\n        this._transitionEngine.onRemovalComplete = (/**\n         * @param {?} element\n         * @param {?} context\n         * @return {?}\n         */\n        (element, context) => this.onRemovalComplete(element, context));\n    }\n    /**\n     * @param {?} componentId\n     * @param {?} namespaceId\n     * @param {?} hostElement\n     * @param {?} name\n     * @param {?} metadata\n     * @return {?}\n     */\n    registerTrigger(componentId, namespaceId, hostElement, name, metadata) {\n        /** @type {?} */\n        const cacheKey = componentId + '-' + name;\n        /** @type {?} */\n        let trigger = this._triggerCache[cacheKey];\n        if (!trigger) {\n            /** @type {?} */\n            const errors = [];\n            /** @type {?} */\n            const ast = (/** @type {?} */ (buildAnimationAst(this._driver, (/** @type {?} */ (metadata)), errors)));\n            if (errors.length) {\n                throw new Error(`The animation trigger \"${name}\" has failed to build due to the following errors:\\n - ${errors.join('\\n - ')}`);\n            }\n            trigger = buildTrigger(name, ast);\n            this._triggerCache[cacheKey] = trigger;\n        }\n        this._transitionEngine.registerTrigger(namespaceId, name, trigger);\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} hostElement\n     * @return {?}\n     */\n    register(namespaceId, hostElement) {\n        this._transitionEngine.register(namespaceId, hostElement);\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} context\n     * @return {?}\n     */\n    destroy(namespaceId, context) {\n        this._transitionEngine.destroy(namespaceId, context);\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} parent\n     * @param {?} insertBefore\n     * @return {?}\n     */\n    onInsert(namespaceId, element, parent, insertBefore) {\n        this._transitionEngine.insertNode(namespaceId, element, parent, insertBefore);\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} context\n     * @param {?=} isHostElement\n     * @return {?}\n     */\n    onRemove(namespaceId, element, context, isHostElement) {\n        this._transitionEngine.removeNode(namespaceId, element, isHostElement || false, context);\n    }\n    /**\n     * @param {?} element\n     * @param {?} disable\n     * @return {?}\n     */\n    disableAnimations(element, disable) {\n        this._transitionEngine.markElementAsDisabled(element, disable);\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} property\n     * @param {?} value\n     * @return {?}\n     */\n    process(namespaceId, element, property, value) {\n        if (property.charAt(0) == '@') {\n            const [id, action] = parseTimelineCommand(property);\n            /** @type {?} */\n            const args = (/** @type {?} */ (value));\n            this._timelineEngine.command(id, element, action, args);\n        }\n        else {\n            this._transitionEngine.trigger(namespaceId, element, property, value);\n        }\n    }\n    /**\n     * @param {?} namespaceId\n     * @param {?} element\n     * @param {?} eventName\n     * @param {?} eventPhase\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(namespaceId, element, eventName, eventPhase, callback) {\n        // @@listen\n        if (eventName.charAt(0) == '@') {\n            const [id, action] = parseTimelineCommand(eventName);\n            return this._timelineEngine.listen(id, element, action, callback);\n        }\n        return this._transitionEngine.listen(namespaceId, element, eventName, eventPhase, callback);\n    }\n    /**\n     * @param {?=} microtaskId\n     * @return {?}\n     */\n    flush(microtaskId = -1) {\n        this._transitionEngine.flush(microtaskId);\n    }\n    /**\n     * @return {?}\n     */\n    get players() {\n        return ((/** @type {?} */ (this._transitionEngine.players)))\n            .concat((/** @type {?} */ (this._timelineEngine.players)));\n    }\n    /**\n     * @return {?}\n     */\n    whenRenderingDone() {\n        return this._transitionEngine.whenRenderingDone();\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationEngine.prototype._transitionEngine;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationEngine.prototype._timelineEngine;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationEngine.prototype._triggerCache;\n    /** @type {?} */\n    AnimationEngine.prototype.onRemovalComplete;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationEngine.prototype.bodyNode;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationEngine.prototype._driver;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/special_cased_styles.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Returns an instance of `SpecialCasedStyles` if and when any special (non animateable) styles are\n * detected.\n *\n * In CSS there exist properties that cannot be animated within a keyframe animation\n * (whether it be via CSS keyframes or web-animations) and the animation implementation\n * will ignore them. This function is designed to detect those special cased styles and\n * return a container that will be executed at the start and end of the animation.\n *\n * @param {?} element\n * @param {?} styles\n * @return {?} an instance of `SpecialCasedStyles` if any special styles are detected otherwise `null`\n */\nfunction packageNonAnimatableStyles(element, styles) {\n    /** @type {?} */\n    let startStyles = null;\n    /** @type {?} */\n    let endStyles = null;\n    if (Array.isArray(styles) && styles.length) {\n        startStyles = filterNonAnimatableStyles(styles[0]);\n        if (styles.length > 1) {\n            endStyles = filterNonAnimatableStyles(styles[styles.length - 1]);\n        }\n    }\n    else if (styles) {\n        startStyles = filterNonAnimatableStyles(styles);\n    }\n    return (startStyles || endStyles) ? new SpecialCasedStyles(element, startStyles, endStyles) :\n        null;\n}\n/**\n * Designed to be executed during a keyframe-based animation to apply any special-cased styles.\n *\n * When started (when the `start()` method is run) then the provided `startStyles`\n * will be applied. When finished (when the `finish()` method is called) the\n * `endStyles` will be applied as well any any starting styles. Finally when\n * `destroy()` is called then all styles will be removed.\n */\nclass SpecialCasedStyles {\n    /**\n     * @param {?} _element\n     * @param {?} _startStyles\n     * @param {?} _endStyles\n     */\n    constructor(_element, _startStyles, _endStyles) {\n        this._element = _element;\n        this._startStyles = _startStyles;\n        this._endStyles = _endStyles;\n        this._state = 0 /* Pending */;\n        /** @type {?} */\n        let initialStyles = SpecialCasedStyles.initialStylesByElement.get(_element);\n        if (!initialStyles) {\n            SpecialCasedStyles.initialStylesByElement.set(_element, initialStyles = {});\n        }\n        this._initialStyles = initialStyles;\n    }\n    /**\n     * @return {?}\n     */\n    start() {\n        if (this._state < 1 /* Started */) {\n            if (this._startStyles) {\n                setStyles(this._element, this._startStyles, this._initialStyles);\n            }\n            this._state = 1 /* Started */;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    finish() {\n        this.start();\n        if (this._state < 2 /* Finished */) {\n            setStyles(this._element, this._initialStyles);\n            if (this._endStyles) {\n                setStyles(this._element, this._endStyles);\n                this._endStyles = null;\n            }\n            this._state = 1 /* Started */;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this.finish();\n        if (this._state < 3 /* Destroyed */) {\n            SpecialCasedStyles.initialStylesByElement.delete(this._element);\n            if (this._startStyles) {\n                eraseStyles(this._element, this._startStyles);\n                this._endStyles = null;\n            }\n            if (this._endStyles) {\n                eraseStyles(this._element, this._endStyles);\n                this._endStyles = null;\n            }\n            setStyles(this._element, this._initialStyles);\n            this._state = 3 /* Destroyed */;\n        }\n    }\n}\nSpecialCasedStyles.initialStylesByElement = new WeakMap();\nif (false) {\n    /** @type {?} */\n    SpecialCasedStyles.initialStylesByElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    SpecialCasedStyles.prototype._state;\n    /**\n     * @type {?}\n     * @private\n     */\n    SpecialCasedStyles.prototype._initialStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    SpecialCasedStyles.prototype._element;\n    /**\n     * @type {?}\n     * @private\n     */\n    SpecialCasedStyles.prototype._startStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    SpecialCasedStyles.prototype._endStyles;\n}\n/** @enum {number} */\nconst SpecialCasedStylesState = {\n    Pending: 0,\n    Started: 1,\n    Finished: 2,\n    Destroyed: 3,\n};\n/**\n * @param {?} styles\n * @return {?}\n */\nfunction filterNonAnimatableStyles(styles) {\n    /** @type {?} */\n    let result = null;\n    /** @type {?} */\n    const props = Object.keys(styles);\n    for (let i = 0; i < props.length; i++) {\n        /** @type {?} */\n        const prop = props[i];\n        if (isNonAnimatableStyle(prop)) {\n            result = result || {};\n            result[prop] = styles[prop];\n        }\n    }\n    return result;\n}\n/**\n * @param {?} prop\n * @return {?}\n */\nfunction isNonAnimatableStyle(prop) {\n    return prop === 'display' || prop === 'position';\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/css_keyframes/element_animation_style_handler.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google Inc. All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n * @type {?}\n */\nconst ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;\n/** @type {?} */\nconst ANIMATION_PROP = 'animation';\n/** @type {?} */\nconst ANIMATIONEND_EVENT = 'animationend';\n/** @type {?} */\nconst ONE_SECOND$1 = 1000;\nclass ElementAnimationStyleHandler {\n    /**\n     * @param {?} _element\n     * @param {?} _name\n     * @param {?} _duration\n     * @param {?} _delay\n     * @param {?} _easing\n     * @param {?} _fillMode\n     * @param {?} _onDoneFn\n     */\n    constructor(_element, _name, _duration, _delay, _easing, _fillMode, _onDoneFn) {\n        this._element = _element;\n        this._name = _name;\n        this._duration = _duration;\n        this._delay = _delay;\n        this._easing = _easing;\n        this._fillMode = _fillMode;\n        this._onDoneFn = _onDoneFn;\n        this._finished = false;\n        this._destroyed = false;\n        this._startTime = 0;\n        this._position = 0;\n        this._eventFn = (/**\n         * @param {?} e\n         * @return {?}\n         */\n        (e) => this._handleCallback(e));\n    }\n    /**\n     * @return {?}\n     */\n    apply() {\n        applyKeyframeAnimation(this._element, `${this._duration}ms ${this._easing} ${this._delay}ms 1 normal ${this._fillMode} ${this._name}`);\n        addRemoveAnimationEvent(this._element, this._eventFn, false);\n        this._startTime = Date.now();\n    }\n    /**\n     * @return {?}\n     */\n    pause() {\n        playPauseAnimation(this._element, this._name, 'paused');\n    }\n    /**\n     * @return {?}\n     */\n    resume() {\n        playPauseAnimation(this._element, this._name, 'running');\n    }\n    /**\n     * @param {?} position\n     * @return {?}\n     */\n    setPosition(position) {\n        /** @type {?} */\n        const index = findIndexForAnimation(this._element, this._name);\n        this._position = position * this._duration;\n        setAnimationStyle(this._element, 'Delay', `-${this._position}ms`, index);\n    }\n    /**\n     * @return {?}\n     */\n    getPosition() {\n        return this._position;\n    }\n    /**\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _handleCallback(event) {\n        /** @type {?} */\n        const timestamp = event._ngTestManualTimestamp || Date.now();\n        /** @type {?} */\n        const elapsedTime = parseFloat(event.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES)) * ONE_SECOND$1;\n        if (event.animationName == this._name &&\n            Math.max(timestamp - this._startTime, 0) >= this._delay && elapsedTime >= this._duration) {\n            this.finish();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    finish() {\n        if (this._finished)\n            return;\n        this._finished = true;\n        this._onDoneFn();\n        addRemoveAnimationEvent(this._element, this._eventFn, true);\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (this._destroyed)\n            return;\n        this._destroyed = true;\n        this.finish();\n        removeKeyframeAnimation(this._element, this._name);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._eventFn;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._finished;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._destroyed;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._startTime;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._position;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._element;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._name;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._duration;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._delay;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._easing;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._fillMode;\n    /**\n     * @type {?}\n     * @private\n     */\n    ElementAnimationStyleHandler.prototype._onDoneFn;\n}\n/**\n * @param {?} element\n * @param {?} name\n * @param {?} status\n * @return {?}\n */\nfunction playPauseAnimation(element, name, status) {\n    /** @type {?} */\n    const index = findIndexForAnimation(element, name);\n    setAnimationStyle(element, 'PlayState', status, index);\n}\n/**\n * @param {?} element\n * @param {?} value\n * @return {?}\n */\nfunction applyKeyframeAnimation(element, value) {\n    /** @type {?} */\n    const anim = getAnimationStyle(element, '').trim();\n    /** @type {?} */\n    let index = 0;\n    if (anim.length) {\n        index = countChars(anim, ',') + 1;\n        value = `${anim}, ${value}`;\n    }\n    setAnimationStyle(element, '', value);\n    return index;\n}\n/**\n * @param {?} element\n * @param {?} name\n * @return {?}\n */\nfunction removeKeyframeAnimation(element, name) {\n    /** @type {?} */\n    const anim = getAnimationStyle(element, '');\n    /** @type {?} */\n    const tokens = anim.split(',');\n    /** @type {?} */\n    const index = findMatchingTokenIndex(tokens, name);\n    if (index >= 0) {\n        tokens.splice(index, 1);\n        /** @type {?} */\n        const newValue = tokens.join(',');\n        setAnimationStyle(element, '', newValue);\n    }\n}\n/**\n * @param {?} element\n * @param {?} value\n * @return {?}\n */\nfunction findIndexForAnimation(element, value) {\n    /** @type {?} */\n    const anim = getAnimationStyle(element, '');\n    if (anim.indexOf(',') > 0) {\n        /** @type {?} */\n        const tokens = anim.split(',');\n        return findMatchingTokenIndex(tokens, value);\n    }\n    return findMatchingTokenIndex([anim], value);\n}\n/**\n * @param {?} tokens\n * @param {?} searchToken\n * @return {?}\n */\nfunction findMatchingTokenIndex(tokens, searchToken) {\n    for (let i = 0; i < tokens.length; i++) {\n        if (tokens[i].indexOf(searchToken) >= 0) {\n            return i;\n        }\n    }\n    return -1;\n}\n/**\n * @param {?} element\n * @param {?} fn\n * @param {?} doRemove\n * @return {?}\n */\nfunction addRemoveAnimationEvent(element, fn, doRemove) {\n    doRemove ? element.removeEventListener(ANIMATIONEND_EVENT, fn) :\n        element.addEventListener(ANIMATIONEND_EVENT, fn);\n}\n/**\n * @param {?} element\n * @param {?} name\n * @param {?} value\n * @param {?=} index\n * @return {?}\n */\nfunction setAnimationStyle(element, name, value, index) {\n    /** @type {?} */\n    const prop = ANIMATION_PROP + name;\n    if (index != null) {\n        /** @type {?} */\n        const oldValue = element.style[prop];\n        if (oldValue.length) {\n            /** @type {?} */\n            const tokens = oldValue.split(',');\n            tokens[index] = value;\n            value = tokens.join(',');\n        }\n    }\n    element.style[prop] = value;\n}\n/**\n * @param {?} element\n * @param {?} name\n * @return {?}\n */\nfunction getAnimationStyle(element, name) {\n    return element.style[ANIMATION_PROP + name];\n}\n/**\n * @param {?} value\n * @param {?} char\n * @return {?}\n */\nfunction countChars(value, char) {\n    /** @type {?} */\n    let count = 0;\n    for (let i = 0; i < value.length; i++) {\n        /** @type {?} */\n        const c = value.charAt(i);\n        if (c === char)\n            count++;\n    }\n    return count;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/css_keyframes/css_keyframes_player.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst DEFAULT_FILL_MODE = 'forwards';\n/** @type {?} */\nconst DEFAULT_EASING = 'linear';\n/** @enum {number} */\nconst AnimatorControlState = {\n    INITIALIZED: 1,\n    STARTED: 2,\n    FINISHED: 3,\n    DESTROYED: 4,\n};\nclass CssKeyframesPlayer {\n    /**\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} animationName\n     * @param {?} _duration\n     * @param {?} _delay\n     * @param {?} easing\n     * @param {?} _finalStyles\n     * @param {?=} _specialStyles\n     */\n    constructor(element, keyframes, animationName, _duration, _delay, easing, _finalStyles, _specialStyles) {\n        this.element = element;\n        this.keyframes = keyframes;\n        this.animationName = animationName;\n        this._duration = _duration;\n        this._delay = _delay;\n        this._finalStyles = _finalStyles;\n        this._specialStyles = _specialStyles;\n        this._onDoneFns = [];\n        this._onStartFns = [];\n        this._onDestroyFns = [];\n        this._started = false;\n        this.currentSnapshot = {};\n        this._state = 0;\n        this.easing = easing || DEFAULT_EASING;\n        this.totalTime = _duration + _delay;\n        this._buildStyler();\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onStart(fn) {\n        this._onStartFns.push(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDone(fn) {\n        this._onDoneFns.push(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDestroy(fn) {\n        this._onDestroyFns.push(fn);\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this.init();\n        if (this._state >= 4 /* DESTROYED */)\n            return;\n        this._state = 4 /* DESTROYED */;\n        this._styler.destroy();\n        this._flushStartFns();\n        this._flushDoneFns();\n        if (this._specialStyles) {\n            this._specialStyles.destroy();\n        }\n        this._onDestroyFns.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        this._onDestroyFns = [];\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _flushDoneFns() {\n        this._onDoneFns.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        this._onDoneFns = [];\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _flushStartFns() {\n        this._onStartFns.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        this._onStartFns = [];\n    }\n    /**\n     * @return {?}\n     */\n    finish() {\n        this.init();\n        if (this._state >= 3 /* FINISHED */)\n            return;\n        this._state = 3 /* FINISHED */;\n        this._styler.finish();\n        this._flushStartFns();\n        if (this._specialStyles) {\n            this._specialStyles.finish();\n        }\n        this._flushDoneFns();\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    setPosition(value) {\n        this._styler.setPosition(value);\n    }\n    /**\n     * @return {?}\n     */\n    getPosition() {\n        return this._styler.getPosition();\n    }\n    /**\n     * @return {?}\n     */\n    hasStarted() {\n        return this._state >= 2 /* STARTED */;\n    }\n    /**\n     * @return {?}\n     */\n    init() {\n        if (this._state >= 1 /* INITIALIZED */)\n            return;\n        this._state = 1 /* INITIALIZED */;\n        /** @type {?} */\n        const elm = this.element;\n        this._styler.apply();\n        if (this._delay) {\n            this._styler.pause();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    play() {\n        this.init();\n        if (!this.hasStarted()) {\n            this._flushStartFns();\n            this._state = 2 /* STARTED */;\n            if (this._specialStyles) {\n                this._specialStyles.start();\n            }\n        }\n        this._styler.resume();\n    }\n    /**\n     * @return {?}\n     */\n    pause() {\n        this.init();\n        this._styler.pause();\n    }\n    /**\n     * @return {?}\n     */\n    restart() {\n        this.reset();\n        this.play();\n    }\n    /**\n     * @return {?}\n     */\n    reset() {\n        this._styler.destroy();\n        this._buildStyler();\n        this._styler.apply();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _buildStyler() {\n        this._styler = new ElementAnimationStyleHandler(this.element, this.animationName, this._duration, this._delay, this.easing, DEFAULT_FILL_MODE, (/**\n         * @return {?}\n         */\n        () => this.finish()));\n    }\n    /**\n     * \\@internal\n     * @param {?} phaseName\n     * @return {?}\n     */\n    triggerCallback(phaseName) {\n        /** @type {?} */\n        const methods = phaseName == 'start' ? this._onStartFns : this._onDoneFns;\n        methods.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        methods.length = 0;\n    }\n    /**\n     * @return {?}\n     */\n    beforeDestroy() {\n        this.init();\n        /** @type {?} */\n        const styles = {};\n        if (this.hasStarted()) {\n            /** @type {?} */\n            const finished = this._state >= 3 /* FINISHED */;\n            Object.keys(this._finalStyles).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                if (prop != 'offset') {\n                    styles[prop] = finished ? this._finalStyles[prop] : computeStyle(this.element, prop);\n                }\n            }));\n        }\n        this.currentSnapshot = styles;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._onDoneFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._onStartFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._onDestroyFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._started;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._styler;\n    /** @type {?} */\n    CssKeyframesPlayer.prototype.parentPlayer;\n    /** @type {?} */\n    CssKeyframesPlayer.prototype.totalTime;\n    /** @type {?} */\n    CssKeyframesPlayer.prototype.easing;\n    /** @type {?} */\n    CssKeyframesPlayer.prototype.currentSnapshot;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._state;\n    /** @type {?} */\n    CssKeyframesPlayer.prototype.element;\n    /** @type {?} */\n    CssKeyframesPlayer.prototype.keyframes;\n    /** @type {?} */\n    CssKeyframesPlayer.prototype.animationName;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._duration;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._delay;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._finalStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesPlayer.prototype._specialStyles;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/css_keyframes/direct_style_player.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass DirectStylePlayer extends NoopAnimationPlayer {\n    /**\n     * @param {?} element\n     * @param {?} styles\n     */\n    constructor(element, styles) {\n        super();\n        this.element = element;\n        this._startingStyles = {};\n        this.__initialized = false;\n        this._styles = hypenatePropsObject(styles);\n    }\n    /**\n     * @return {?}\n     */\n    init() {\n        if (this.__initialized || !this._startingStyles)\n            return;\n        this.__initialized = true;\n        Object.keys(this._styles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            (/** @type {?} */ (this._startingStyles))[prop] = this.element.style[prop];\n        }));\n        super.init();\n    }\n    /**\n     * @return {?}\n     */\n    play() {\n        if (!this._startingStyles)\n            return;\n        this.init();\n        Object.keys(this._styles)\n            .forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => this.element.style.setProperty(prop, this._styles[prop])));\n        super.play();\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (!this._startingStyles)\n            return;\n        Object.keys(this._startingStyles).forEach((/**\n         * @param {?} prop\n         * @return {?}\n         */\n        prop => {\n            /** @type {?} */\n            const value = (/** @type {?} */ (this._startingStyles))[prop];\n            if (value) {\n                this.element.style.setProperty(prop, value);\n            }\n            else {\n                this.element.style.removeProperty(prop);\n            }\n        }));\n        this._startingStyles = null;\n        super.destroy();\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DirectStylePlayer.prototype._startingStyles;\n    /**\n     * @type {?}\n     * @private\n     */\n    DirectStylePlayer.prototype.__initialized;\n    /**\n     * @type {?}\n     * @private\n     */\n    DirectStylePlayer.prototype._styles;\n    /** @type {?} */\n    DirectStylePlayer.prototype.element;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/css_keyframes/css_keyframes_driver.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst KEYFRAMES_NAME_PREFIX = 'gen_css_kf_';\n/** @type {?} */\nconst TAB_SPACE = ' ';\nclass CssKeyframesDriver {\n    constructor() {\n        this._count = 0;\n        this._head = document.querySelector('head');\n        this._warningIssued = false;\n    }\n    /**\n     * @param {?} prop\n     * @return {?}\n     */\n    validateStyleProperty(prop) {\n        return validateStyleProperty(prop);\n    }\n    /**\n     * @param {?} element\n     * @param {?} selector\n     * @return {?}\n     */\n    matchesElement(element, selector) {\n        return matchesElement(element, selector);\n    }\n    /**\n     * @param {?} elm1\n     * @param {?} elm2\n     * @return {?}\n     */\n    containsElement(elm1, elm2) {\n        return containsElement(elm1, elm2);\n    }\n    /**\n     * @param {?} element\n     * @param {?} selector\n     * @param {?} multi\n     * @return {?}\n     */\n    query(element, selector, multi) {\n        return invokeQuery(element, selector, multi);\n    }\n    /**\n     * @param {?} element\n     * @param {?} prop\n     * @param {?=} defaultValue\n     * @return {?}\n     */\n    computeStyle(element, prop, defaultValue) {\n        return (/** @type {?} */ (((/** @type {?} */ (window.getComputedStyle(element))))[prop]));\n    }\n    /**\n     * @param {?} element\n     * @param {?} name\n     * @param {?} keyframes\n     * @return {?}\n     */\n    buildKeyframeElement(element, name, keyframes) {\n        keyframes = keyframes.map((/**\n         * @param {?} kf\n         * @return {?}\n         */\n        kf => hypenatePropsObject(kf)));\n        /** @type {?} */\n        let keyframeStr = `@keyframes ${name} {\\n`;\n        /** @type {?} */\n        let tab = '';\n        keyframes.forEach((/**\n         * @param {?} kf\n         * @return {?}\n         */\n        kf => {\n            tab = TAB_SPACE;\n            /** @type {?} */\n            const offset = parseFloat(kf['offset']);\n            keyframeStr += `${tab}${offset * 100}% {\\n`;\n            tab += TAB_SPACE;\n            Object.keys(kf).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                /** @type {?} */\n                const value = kf[prop];\n                switch (prop) {\n                    case 'offset':\n                        return;\n                    case 'easing':\n                        if (value) {\n                            keyframeStr += `${tab}animation-timing-function: ${value};\\n`;\n                        }\n                        return;\n                    default:\n                        keyframeStr += `${tab}${prop}: ${value};\\n`;\n                        return;\n                }\n            }));\n            keyframeStr += `${tab}}\\n`;\n        }));\n        keyframeStr += `}\\n`;\n        /** @type {?} */\n        const kfElm = document.createElement('style');\n        kfElm.innerHTML = keyframeStr;\n        return kfElm;\n    }\n    /**\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} duration\n     * @param {?} delay\n     * @param {?} easing\n     * @param {?=} previousPlayers\n     * @param {?=} scrubberAccessRequested\n     * @return {?}\n     */\n    animate(element, keyframes, duration, delay, easing, previousPlayers = [], scrubberAccessRequested) {\n        if (scrubberAccessRequested) {\n            this._notifyFaultyScrubber();\n        }\n        /** @type {?} */\n        const previousCssKeyframePlayers = (/** @type {?} */ (previousPlayers.filter((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player instanceof CssKeyframesPlayer))));\n        /** @type {?} */\n        const previousStyles = {};\n        if (allowPreviousPlayerStylesMerge(duration, delay)) {\n            previousCssKeyframePlayers.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => {\n                /** @type {?} */\n                let styles = player.currentSnapshot;\n                Object.keys(styles).forEach((/**\n                 * @param {?} prop\n                 * @return {?}\n                 */\n                prop => previousStyles[prop] = styles[prop]));\n            }));\n        }\n        keyframes = balancePreviousStylesIntoKeyframes(element, keyframes, previousStyles);\n        /** @type {?} */\n        const finalStyles = flattenKeyframesIntoStyles(keyframes);\n        // if there is no animation then there is no point in applying\n        // styles and waiting for an event to get fired. This causes lag.\n        // It's better to just directly apply the styles to the element\n        // via the direct styling animation player.\n        if (duration == 0) {\n            return new DirectStylePlayer(element, finalStyles);\n        }\n        /** @type {?} */\n        const animationName = `${KEYFRAMES_NAME_PREFIX}${this._count++}`;\n        /** @type {?} */\n        const kfElm = this.buildKeyframeElement(element, animationName, keyframes);\n        (/** @type {?} */ (document.querySelector('head'))).appendChild(kfElm);\n        /** @type {?} */\n        const specialStyles = packageNonAnimatableStyles(element, keyframes);\n        /** @type {?} */\n        const player = new CssKeyframesPlayer(element, keyframes, animationName, duration, delay, easing, finalStyles, specialStyles);\n        player.onDestroy((/**\n         * @return {?}\n         */\n        () => removeElement(kfElm)));\n        return player;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _notifyFaultyScrubber() {\n        if (!this._warningIssued) {\n            console.warn('@angular/animations: please load the web-animations.js polyfill to allow programmatic access...\\n', '  visit http://bit.ly/IWukam to learn more about using the web-animation-js polyfill.');\n            this._warningIssued = true;\n        }\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesDriver.prototype._count;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesDriver.prototype._head;\n    /**\n     * @type {?}\n     * @private\n     */\n    CssKeyframesDriver.prototype._warningIssued;\n}\n/**\n * @param {?} keyframes\n * @return {?}\n */\nfunction flattenKeyframesIntoStyles(keyframes) {\n    /** @type {?} */\n    let flatKeyframes = {};\n    if (keyframes) {\n        /** @type {?} */\n        const kfs = Array.isArray(keyframes) ? keyframes : [keyframes];\n        kfs.forEach((/**\n         * @param {?} kf\n         * @return {?}\n         */\n        kf => {\n            Object.keys(kf).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                if (prop == 'offset' || prop == 'easing')\n                    return;\n                flatKeyframes[prop] = kf[prop];\n            }));\n        }));\n    }\n    return flatKeyframes;\n}\n/**\n * @param {?} node\n * @return {?}\n */\nfunction removeElement(node) {\n    node.parentNode.removeChild(node);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/web_animations/web_animations_player.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass WebAnimationsPlayer {\n    /**\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} options\n     * @param {?=} _specialStyles\n     */\n    constructor(element, keyframes, options, _specialStyles) {\n        this.element = element;\n        this.keyframes = keyframes;\n        this.options = options;\n        this._specialStyles = _specialStyles;\n        this._onDoneFns = [];\n        this._onStartFns = [];\n        this._onDestroyFns = [];\n        this._initialized = false;\n        this._finished = false;\n        this._started = false;\n        this._destroyed = false;\n        this.time = 0;\n        this.parentPlayer = null;\n        this.currentSnapshot = {};\n        this._duration = (/** @type {?} */ (options['duration']));\n        this._delay = (/** @type {?} */ (options['delay'])) || 0;\n        this.time = this._duration + this._delay;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _onFinish() {\n        if (!this._finished) {\n            this._finished = true;\n            this._onDoneFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onDoneFns = [];\n        }\n    }\n    /**\n     * @return {?}\n     */\n    init() {\n        this._buildPlayer();\n        this._preparePlayerBeforeStart();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _buildPlayer() {\n        if (this._initialized)\n            return;\n        this._initialized = true;\n        /** @type {?} */\n        const keyframes = this.keyframes;\n        ((/** @type {?} */ (this))).domPlayer =\n            this._triggerWebAnimation(this.element, keyframes, this.options);\n        this._finalKeyframe = keyframes.length ? keyframes[keyframes.length - 1] : {};\n        this.domPlayer.addEventListener('finish', (/**\n         * @return {?}\n         */\n        () => this._onFinish()));\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _preparePlayerBeforeStart() {\n        // this is required so that the player doesn't start to animate right away\n        if (this._delay) {\n            this._resetDomPlayerState();\n        }\n        else {\n            this.domPlayer.pause();\n        }\n    }\n    /**\n     * \\@internal\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} options\n     * @return {?}\n     */\n    _triggerWebAnimation(element, keyframes, options) {\n        // jscompiler doesn't seem to know animate is a native property because it's not fully\n        // supported yet across common browsers (we polyfill it for Edge/Safari) [CL #143630929]\n        return (/** @type {?} */ (element['animate'](keyframes, options)));\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onStart(fn) {\n        this._onStartFns.push(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDone(fn) {\n        this._onDoneFns.push(fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDestroy(fn) {\n        this._onDestroyFns.push(fn);\n    }\n    /**\n     * @return {?}\n     */\n    play() {\n        this._buildPlayer();\n        if (!this.hasStarted()) {\n            this._onStartFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onStartFns = [];\n            this._started = true;\n            if (this._specialStyles) {\n                this._specialStyles.start();\n            }\n        }\n        this.domPlayer.play();\n    }\n    /**\n     * @return {?}\n     */\n    pause() {\n        this.init();\n        this.domPlayer.pause();\n    }\n    /**\n     * @return {?}\n     */\n    finish() {\n        this.init();\n        if (this._specialStyles) {\n            this._specialStyles.finish();\n        }\n        this._onFinish();\n        this.domPlayer.finish();\n    }\n    /**\n     * @return {?}\n     */\n    reset() {\n        this._resetDomPlayerState();\n        this._destroyed = false;\n        this._finished = false;\n        this._started = false;\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _resetDomPlayerState() {\n        if (this.domPlayer) {\n            this.domPlayer.cancel();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    restart() {\n        this.reset();\n        this.play();\n    }\n    /**\n     * @return {?}\n     */\n    hasStarted() {\n        return this._started;\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        if (!this._destroyed) {\n            this._destroyed = true;\n            this._resetDomPlayerState();\n            this._onFinish();\n            if (this._specialStyles) {\n                this._specialStyles.destroy();\n            }\n            this._onDestroyFns.forEach((/**\n             * @param {?} fn\n             * @return {?}\n             */\n            fn => fn()));\n            this._onDestroyFns = [];\n        }\n    }\n    /**\n     * @param {?} p\n     * @return {?}\n     */\n    setPosition(p) {\n        this.domPlayer.currentTime = p * this.time;\n    }\n    /**\n     * @return {?}\n     */\n    getPosition() {\n        return this.domPlayer.currentTime / this.time;\n    }\n    /**\n     * @return {?}\n     */\n    get totalTime() {\n        return this._delay + this._duration;\n    }\n    /**\n     * @return {?}\n     */\n    beforeDestroy() {\n        /** @type {?} */\n        const styles = {};\n        if (this.hasStarted()) {\n            Object.keys(this._finalKeyframe).forEach((/**\n             * @param {?} prop\n             * @return {?}\n             */\n            prop => {\n                if (prop != 'offset') {\n                    styles[prop] =\n                        this._finished ? this._finalKeyframe[prop] : computeStyle(this.element, prop);\n                }\n            }));\n        }\n        this.currentSnapshot = styles;\n    }\n    /**\n     * \\@internal\n     * @param {?} phaseName\n     * @return {?}\n     */\n    triggerCallback(phaseName) {\n        /** @type {?} */\n        const methods = phaseName == 'start' ? this._onStartFns : this._onDoneFns;\n        methods.forEach((/**\n         * @param {?} fn\n         * @return {?}\n         */\n        fn => fn()));\n        methods.length = 0;\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._onDoneFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._onStartFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._onDestroyFns;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._duration;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._delay;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._initialized;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._finished;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._started;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._destroyed;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._finalKeyframe;\n    /** @type {?} */\n    WebAnimationsPlayer.prototype.domPlayer;\n    /** @type {?} */\n    WebAnimationsPlayer.prototype.time;\n    /** @type {?} */\n    WebAnimationsPlayer.prototype.parentPlayer;\n    /** @type {?} */\n    WebAnimationsPlayer.prototype.currentSnapshot;\n    /** @type {?} */\n    WebAnimationsPlayer.prototype.element;\n    /** @type {?} */\n    WebAnimationsPlayer.prototype.keyframes;\n    /** @type {?} */\n    WebAnimationsPlayer.prototype.options;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsPlayer.prototype._specialStyles;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/render/web_animations/web_animations_driver.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass WebAnimationsDriver {\n    constructor() {\n        this._isNativeImpl = /\\{\\s*\\[native\\s+code\\]\\s*\\}/.test(getElementAnimateFn().toString());\n        this._cssKeyframesDriver = new CssKeyframesDriver();\n    }\n    /**\n     * @param {?} prop\n     * @return {?}\n     */\n    validateStyleProperty(prop) {\n        return validateStyleProperty(prop);\n    }\n    /**\n     * @param {?} element\n     * @param {?} selector\n     * @return {?}\n     */\n    matchesElement(element, selector) {\n        return matchesElement(element, selector);\n    }\n    /**\n     * @param {?} elm1\n     * @param {?} elm2\n     * @return {?}\n     */\n    containsElement(elm1, elm2) {\n        return containsElement(elm1, elm2);\n    }\n    /**\n     * @param {?} element\n     * @param {?} selector\n     * @param {?} multi\n     * @return {?}\n     */\n    query(element, selector, multi) {\n        return invokeQuery(element, selector, multi);\n    }\n    /**\n     * @param {?} element\n     * @param {?} prop\n     * @param {?=} defaultValue\n     * @return {?}\n     */\n    computeStyle(element, prop, defaultValue) {\n        return (/** @type {?} */ (((/** @type {?} */ (window.getComputedStyle(element))))[prop]));\n    }\n    /**\n     * @param {?} supported\n     * @return {?}\n     */\n    overrideWebAnimationsSupport(supported) {\n        this._isNativeImpl = supported;\n    }\n    /**\n     * @param {?} element\n     * @param {?} keyframes\n     * @param {?} duration\n     * @param {?} delay\n     * @param {?} easing\n     * @param {?=} previousPlayers\n     * @param {?=} scrubberAccessRequested\n     * @return {?}\n     */\n    animate(element, keyframes, duration, delay, easing, previousPlayers = [], scrubberAccessRequested) {\n        /** @type {?} */\n        const useKeyframes = !scrubberAccessRequested && !this._isNativeImpl;\n        if (useKeyframes) {\n            return this._cssKeyframesDriver.animate(element, keyframes, duration, delay, easing, previousPlayers);\n        }\n        /** @type {?} */\n        const fill = delay == 0 ? 'both' : 'forwards';\n        /** @type {?} */\n        const playerOptions = { duration, delay, fill };\n        // we check for this to avoid having a null|undefined value be present\n        // for the easing (which results in an error for certain browsers #9752)\n        if (easing) {\n            playerOptions['easing'] = easing;\n        }\n        /** @type {?} */\n        const previousStyles = {};\n        /** @type {?} */\n        const previousWebAnimationPlayers = (/** @type {?} */ (previousPlayers.filter((/**\n         * @param {?} player\n         * @return {?}\n         */\n        player => player instanceof WebAnimationsPlayer))));\n        if (allowPreviousPlayerStylesMerge(duration, delay)) {\n            previousWebAnimationPlayers.forEach((/**\n             * @param {?} player\n             * @return {?}\n             */\n            player => {\n                /** @type {?} */\n                let styles = player.currentSnapshot;\n                Object.keys(styles).forEach((/**\n                 * @param {?} prop\n                 * @return {?}\n                 */\n                prop => previousStyles[prop] = styles[prop]));\n            }));\n        }\n        keyframes = keyframes.map((/**\n         * @param {?} styles\n         * @return {?}\n         */\n        styles => copyStyles(styles, false)));\n        keyframes = balancePreviousStylesIntoKeyframes(element, keyframes, previousStyles);\n        /** @type {?} */\n        const specialStyles = packageNonAnimatableStyles(element, keyframes);\n        return new WebAnimationsPlayer(element, keyframes, playerOptions, specialStyles);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsDriver.prototype._isNativeImpl;\n    /**\n     * @type {?}\n     * @private\n     */\n    WebAnimationsDriver.prototype._cssKeyframesDriver;\n}\n/**\n * @return {?}\n */\nfunction supportsWebAnimations() {\n    return typeof getElementAnimateFn() === 'function';\n}\n/**\n * @return {?}\n */\nfunction getElementAnimateFn() {\n    return (isBrowser() && ((/** @type {?} */ (Element))).prototype['animate']) || {};\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/private_export.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/src/browser.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/animations/browser/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { AnimationDriver, Animation as ɵAnimation, AnimationEngine as ɵAnimationEngine, AnimationStyleNormalizer as ɵAnimationStyleNormalizer, CssKeyframesDriver as ɵCssKeyframesDriver, CssKeyframesPlayer as ɵCssKeyframesPlayer, NoopAnimationDriver as ɵNoopAnimationDriver, NoopAnimationStyleNormalizer as ɵNoopAnimationStyleNormalizer, WebAnimationsDriver as ɵWebAnimationsDriver, WebAnimationsPlayer as ɵWebAnimationsPlayer, WebAnimationsStyleNormalizer as ɵWebAnimationsStyleNormalizer, allowPreviousPlayerStylesMerge as ɵallowPreviousPlayerStylesMerge, SpecialCasedStyles as ɵangular_packages_animations_browser_browser_a, containsElement as ɵcontainsElement, invokeQuery as ɵinvokeQuery, matchesElement as ɵmatchesElement, supportsWebAnimations as ɵsupportsWebAnimations, validateStyleProperty as ɵvalidateStyleProperty };\n\n//# sourceMappingURL=browser.js.map","/**\n * @license Angular v9.1.9\n * (c) 2010-2020 Google LLC. https://angular.io/\n * License: MIT\n */\n\nimport { ViewEncapsulation, Injectable, RendererFactory2, Inject, NgZone, InjectionToken, NgModule } from '@angular/core';\nimport { ɵDomRendererFactory2, BrowserModule } from '@angular/platform-browser';\nimport { AnimationBuilder, sequence, AnimationFactory } from '@angular/animations';\nimport { ɵAnimationEngine, AnimationDriver, ɵAnimationStyleNormalizer, ɵsupportsWebAnimations, ɵWebAnimationsDriver, ɵCssKeyframesDriver, ɵWebAnimationsStyleNormalizer, ɵNoopAnimationDriver } from '@angular/animations/browser';\nimport { DOCUMENT } from '@angular/common';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/src/animation_builder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/animations/browser';\nclass BrowserAnimationBuilder extends AnimationBuilder {\n    /**\n     * @param {?} rootRenderer\n     * @param {?} doc\n     */\n    constructor(rootRenderer, doc) {\n        super();\n        this._nextAnimationId = 0;\n        /** @type {?} */\n        const typeData = (/** @type {?} */ ({ id: '0', encapsulation: ViewEncapsulation.None, styles: [], data: { animation: [] } }));\n        this._renderer = (/** @type {?} */ (rootRenderer.createRenderer(doc.body, typeData)));\n    }\n    /**\n     * @param {?} animation\n     * @return {?}\n     */\n    build(animation) {\n        /** @type {?} */\n        const id = this._nextAnimationId.toString();\n        this._nextAnimationId++;\n        /** @type {?} */\n        const entry = Array.isArray(animation) ? sequence(animation) : animation;\n        issueAnimationCommand(this._renderer, null, id, 'register', [entry]);\n        return new BrowserAnimationFactory(id, this._renderer);\n    }\n}\nBrowserAnimationBuilder.ɵfac = function BrowserAnimationBuilder_Factory(t) { return new (t || BrowserAnimationBuilder)(ɵngcc0.ɵɵinject(ɵngcc0.RendererFactory2), ɵngcc0.ɵɵinject(DOCUMENT)); };\nBrowserAnimationBuilder.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: BrowserAnimationBuilder, factory: BrowserAnimationBuilder.ɵfac });\n/** @nocollapse */\nBrowserAnimationBuilder.ctorParameters = () => [\n    { type: RendererFactory2 },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BrowserAnimationBuilder, [{\n        type: Injectable\n    }], function () { return [{ type: ɵngcc0.RendererFactory2 }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserAnimationBuilder.prototype._nextAnimationId;\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserAnimationBuilder.prototype._renderer;\n}\nclass BrowserAnimationFactory extends AnimationFactory {\n    /**\n     * @param {?} _id\n     * @param {?} _renderer\n     */\n    constructor(_id, _renderer) {\n        super();\n        this._id = _id;\n        this._renderer = _renderer;\n    }\n    /**\n     * @param {?} element\n     * @param {?=} options\n     * @return {?}\n     */\n    create(element, options) {\n        return new RendererAnimationPlayer(this._id, element, options || {}, this._renderer);\n    }\n}\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserAnimationFactory.prototype._id;\n    /**\n     * @type {?}\n     * @private\n     */\n    BrowserAnimationFactory.prototype._renderer;\n}\nclass RendererAnimationPlayer {\n    /**\n     * @param {?} id\n     * @param {?} element\n     * @param {?} options\n     * @param {?} _renderer\n     */\n    constructor(id, element, options, _renderer) {\n        this.id = id;\n        this.element = element;\n        this._renderer = _renderer;\n        this.parentPlayer = null;\n        this._started = false;\n        this.totalTime = 0;\n        this._command('create', options);\n    }\n    /**\n     * @private\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    _listen(eventName, callback) {\n        return this._renderer.listen(this.element, `@@${this.id}:${eventName}`, callback);\n    }\n    /**\n     * @private\n     * @param {?} command\n     * @param {...?} args\n     * @return {?}\n     */\n    _command(command, ...args) {\n        return issueAnimationCommand(this._renderer, this.element, this.id, command, args);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDone(fn) {\n        this._listen('done', fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onStart(fn) {\n        this._listen('start', fn);\n    }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    onDestroy(fn) {\n        this._listen('destroy', fn);\n    }\n    /**\n     * @return {?}\n     */\n    init() {\n        this._command('init');\n    }\n    /**\n     * @return {?}\n     */\n    hasStarted() {\n        return this._started;\n    }\n    /**\n     * @return {?}\n     */\n    play() {\n        this._command('play');\n        this._started = true;\n    }\n    /**\n     * @return {?}\n     */\n    pause() {\n        this._command('pause');\n    }\n    /**\n     * @return {?}\n     */\n    restart() {\n        this._command('restart');\n    }\n    /**\n     * @return {?}\n     */\n    finish() {\n        this._command('finish');\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this._command('destroy');\n    }\n    /**\n     * @return {?}\n     */\n    reset() {\n        this._command('reset');\n    }\n    /**\n     * @param {?} p\n     * @return {?}\n     */\n    setPosition(p) {\n        this._command('setPosition', p);\n    }\n    /**\n     * @return {?}\n     */\n    getPosition() {\n        return 0;\n    }\n}\nif (false) {\n    /** @type {?} */\n    RendererAnimationPlayer.prototype.parentPlayer;\n    /**\n     * @type {?}\n     * @private\n     */\n    RendererAnimationPlayer.prototype._started;\n    /** @type {?} */\n    RendererAnimationPlayer.prototype.totalTime;\n    /** @type {?} */\n    RendererAnimationPlayer.prototype.id;\n    /** @type {?} */\n    RendererAnimationPlayer.prototype.element;\n    /**\n     * @type {?}\n     * @private\n     */\n    RendererAnimationPlayer.prototype._renderer;\n}\n/**\n * @param {?} renderer\n * @param {?} element\n * @param {?} id\n * @param {?} command\n * @param {?} args\n * @return {?}\n */\nfunction issueAnimationCommand(renderer, element, id, command, args) {\n    return renderer.setProperty(element, `@@${id}:${command}`, args);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/src/animation_renderer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst ANIMATION_PREFIX = '@';\n/** @type {?} */\nconst DISABLE_ANIMATIONS_FLAG = '@.disabled';\n/**\n * @record\n */\nfunction RecursiveAnimationTriggerMetadata() { }\nclass AnimationRendererFactory {\n    /**\n     * @param {?} delegate\n     * @param {?} engine\n     * @param {?} _zone\n     */\n    constructor(delegate, engine, _zone) {\n        this.delegate = delegate;\n        this.engine = engine;\n        this._zone = _zone;\n        this._currentId = 0;\n        this._microtaskId = 1;\n        this._animationCallbacksBuffer = [];\n        this._rendererCache = new Map();\n        this._cdRecurDepth = 0;\n        this.promise = Promise.resolve(0);\n        engine.onRemovalComplete = (/**\n         * @param {?} element\n         * @param {?} delegate\n         * @return {?}\n         */\n        (element, delegate) => {\n            // Note: if an component element has a leave animation, and the component\n            // a host leave animation, the view engine will call `removeChild` for the parent\n            // component renderer as well as for the child component renderer.\n            // Therefore, we need to check if we already removed the element.\n            if (delegate && delegate.parentNode(element)) {\n                delegate.removeChild(element.parentNode, element);\n            }\n        });\n    }\n    /**\n     * @param {?} hostElement\n     * @param {?} type\n     * @return {?}\n     */\n    createRenderer(hostElement, type) {\n        /** @type {?} */\n        const EMPTY_NAMESPACE_ID = '';\n        // cache the delegates to find out which cached delegate can\n        // be used by which cached renderer\n        /** @type {?} */\n        const delegate = this.delegate.createRenderer(hostElement, type);\n        if (!hostElement || !type || !type.data || !type.data['animation']) {\n            /** @type {?} */\n            let renderer = this._rendererCache.get(delegate);\n            if (!renderer) {\n                renderer = new BaseAnimationRenderer(EMPTY_NAMESPACE_ID, delegate, this.engine);\n                // only cache this result when the base renderer is used\n                this._rendererCache.set(delegate, renderer);\n            }\n            return renderer;\n        }\n        /** @type {?} */\n        const componentId = type.id;\n        /** @type {?} */\n        const namespaceId = type.id + '-' + this._currentId;\n        this._currentId++;\n        this.engine.register(namespaceId, hostElement);\n        /** @type {?} */\n        const registerTrigger = (/**\n         * @param {?} trigger\n         * @return {?}\n         */\n        (trigger) => {\n            if (Array.isArray(trigger)) {\n                trigger.forEach(registerTrigger);\n            }\n            else {\n                this.engine.registerTrigger(componentId, namespaceId, hostElement, trigger.name, trigger);\n            }\n        });\n        /** @type {?} */\n        const animationTriggers = (/** @type {?} */ (type.data['animation']));\n        animationTriggers.forEach(registerTrigger);\n        return new AnimationRenderer(this, namespaceId, delegate, this.engine);\n    }\n    /**\n     * @return {?}\n     */\n    begin() {\n        this._cdRecurDepth++;\n        if (this.delegate.begin) {\n            this.delegate.begin();\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _scheduleCountTask() {\n        // always use promise to schedule microtask instead of use Zone\n        this.promise.then((/**\n         * @return {?}\n         */\n        () => {\n            this._microtaskId++;\n        }));\n    }\n    /**\n     * \\@internal\n     * @param {?} count\n     * @param {?} fn\n     * @param {?} data\n     * @return {?}\n     */\n    scheduleListenerCallback(count, fn, data) {\n        if (count >= 0 && count < this._microtaskId) {\n            this._zone.run((/**\n             * @return {?}\n             */\n            () => fn(data)));\n            return;\n        }\n        if (this._animationCallbacksBuffer.length == 0) {\n            Promise.resolve(null).then((/**\n             * @return {?}\n             */\n            () => {\n                this._zone.run((/**\n                 * @return {?}\n                 */\n                () => {\n                    this._animationCallbacksBuffer.forEach((/**\n                     * @param {?} tuple\n                     * @return {?}\n                     */\n                    tuple => {\n                        const [fn, data] = tuple;\n                        fn(data);\n                    }));\n                    this._animationCallbacksBuffer = [];\n                }));\n            }));\n        }\n        this._animationCallbacksBuffer.push([fn, data]);\n    }\n    /**\n     * @return {?}\n     */\n    end() {\n        this._cdRecurDepth--;\n        // this is to prevent animations from running twice when an inner\n        // component does CD when a parent component instead has inserted it\n        if (this._cdRecurDepth == 0) {\n            this._zone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                this._scheduleCountTask();\n                this.engine.flush(this._microtaskId);\n            }));\n        }\n        if (this.delegate.end) {\n            this.delegate.end();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    whenRenderingDone() {\n        return this.engine.whenRenderingDone();\n    }\n}\nAnimationRendererFactory.ɵfac = function AnimationRendererFactory_Factory(t) { return new (t || AnimationRendererFactory)(ɵngcc0.ɵɵinject(ɵngcc0.RendererFactory2), ɵngcc0.ɵɵinject(ɵngcc1.ɵAnimationEngine), ɵngcc0.ɵɵinject(ɵngcc0.NgZone)); };\nAnimationRendererFactory.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: AnimationRendererFactory, factory: AnimationRendererFactory.ɵfac });\n/** @nocollapse */\nAnimationRendererFactory.ctorParameters = () => [\n    { type: RendererFactory2 },\n    { type: ɵAnimationEngine },\n    { type: NgZone }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(AnimationRendererFactory, [{\n        type: Injectable\n    }], function () { return [{ type: ɵngcc0.RendererFactory2 }, { type: ɵngcc1.ɵAnimationEngine }, { type: ɵngcc0.NgZone }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype._currentId;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype._microtaskId;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype._animationCallbacksBuffer;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype._rendererCache;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype._cdRecurDepth;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype.promise;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype.delegate;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype.engine;\n    /**\n     * @type {?}\n     * @private\n     */\n    AnimationRendererFactory.prototype._zone;\n}\nclass BaseAnimationRenderer {\n    /**\n     * @param {?} namespaceId\n     * @param {?} delegate\n     * @param {?} engine\n     */\n    constructor(namespaceId, delegate, engine) {\n        this.namespaceId = namespaceId;\n        this.delegate = delegate;\n        this.engine = engine;\n        this.destroyNode = this.delegate.destroyNode ? (/**\n         * @param {?} n\n         * @return {?}\n         */\n        (n) => (/** @type {?} */ (delegate.destroyNode))(n)) : null;\n    }\n    /**\n     * @return {?}\n     */\n    get data() {\n        return this.delegate.data;\n    }\n    /**\n     * @return {?}\n     */\n    destroy() {\n        this.engine.destroy(this.namespaceId, this.delegate);\n        this.delegate.destroy();\n    }\n    /**\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    createElement(name, namespace) {\n        return this.delegate.createElement(name, namespace);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    createComment(value) {\n        return this.delegate.createComment(value);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    createText(value) {\n        return this.delegate.createText(value);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @return {?}\n     */\n    appendChild(parent, newChild) {\n        this.delegate.appendChild(parent, newChild);\n        this.engine.onInsert(this.namespaceId, newChild, parent, false);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} newChild\n     * @param {?} refChild\n     * @return {?}\n     */\n    insertBefore(parent, newChild, refChild) {\n        this.delegate.insertBefore(parent, newChild, refChild);\n        this.engine.onInsert(this.namespaceId, newChild, parent, true);\n    }\n    /**\n     * @param {?} parent\n     * @param {?} oldChild\n     * @param {?} isHostElement\n     * @return {?}\n     */\n    removeChild(parent, oldChild, isHostElement) {\n        this.engine.onRemove(this.namespaceId, oldChild, this.delegate, isHostElement);\n    }\n    /**\n     * @param {?} selectorOrNode\n     * @param {?=} preserveContent\n     * @return {?}\n     */\n    selectRootElement(selectorOrNode, preserveContent) {\n        return this.delegate.selectRootElement(selectorOrNode, preserveContent);\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    parentNode(node) {\n        return this.delegate.parentNode(node);\n    }\n    /**\n     * @param {?} node\n     * @return {?}\n     */\n    nextSibling(node) {\n        return this.delegate.nextSibling(node);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @param {?=} namespace\n     * @return {?}\n     */\n    setAttribute(el, name, value, namespace) {\n        this.delegate.setAttribute(el, name, value, namespace);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?=} namespace\n     * @return {?}\n     */\n    removeAttribute(el, name, namespace) {\n        this.delegate.removeAttribute(el, name, namespace);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    addClass(el, name) {\n        this.delegate.addClass(el, name);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @return {?}\n     */\n    removeClass(el, name) {\n        this.delegate.removeClass(el, name);\n    }\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?} value\n     * @param {?=} flags\n     * @return {?}\n     */\n    setStyle(el, style, value, flags) {\n        this.delegate.setStyle(el, style, value, flags);\n    }\n    /**\n     * @param {?} el\n     * @param {?} style\n     * @param {?=} flags\n     * @return {?}\n     */\n    removeStyle(el, style, flags) {\n        this.delegate.removeStyle(el, style, flags);\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    setProperty(el, name, value) {\n        if (name.charAt(0) == ANIMATION_PREFIX && name == DISABLE_ANIMATIONS_FLAG) {\n            this.disableAnimations(el, !!value);\n        }\n        else {\n            this.delegate.setProperty(el, name, value);\n        }\n    }\n    /**\n     * @param {?} node\n     * @param {?} value\n     * @return {?}\n     */\n    setValue(node, value) {\n        this.delegate.setValue(node, value);\n    }\n    /**\n     * @param {?} target\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(target, eventName, callback) {\n        return this.delegate.listen(target, eventName, callback);\n    }\n    /**\n     * @protected\n     * @param {?} element\n     * @param {?} value\n     * @return {?}\n     */\n    disableAnimations(element, value) {\n        this.engine.disableAnimations(element, value);\n    }\n}\nif (false) {\n    /** @type {?} */\n    BaseAnimationRenderer.prototype.destroyNode;\n    /**\n     * @type {?}\n     * @protected\n     */\n    BaseAnimationRenderer.prototype.namespaceId;\n    /** @type {?} */\n    BaseAnimationRenderer.prototype.delegate;\n    /** @type {?} */\n    BaseAnimationRenderer.prototype.engine;\n}\nclass AnimationRenderer extends BaseAnimationRenderer {\n    /**\n     * @param {?} factory\n     * @param {?} namespaceId\n     * @param {?} delegate\n     * @param {?} engine\n     */\n    constructor(factory, namespaceId, delegate, engine) {\n        super(namespaceId, delegate, engine);\n        this.factory = factory;\n        this.namespaceId = namespaceId;\n    }\n    /**\n     * @param {?} el\n     * @param {?} name\n     * @param {?} value\n     * @return {?}\n     */\n    setProperty(el, name, value) {\n        if (name.charAt(0) == ANIMATION_PREFIX) {\n            if (name.charAt(1) == '.' && name == DISABLE_ANIMATIONS_FLAG) {\n                value = value === undefined ? true : !!value;\n                this.disableAnimations(el, (/** @type {?} */ (value)));\n            }\n            else {\n                this.engine.process(this.namespaceId, el, name.substr(1), value);\n            }\n        }\n        else {\n            this.delegate.setProperty(el, name, value);\n        }\n    }\n    /**\n     * @param {?} target\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    listen(target, eventName, callback) {\n        if (eventName.charAt(0) == ANIMATION_PREFIX) {\n            /** @type {?} */\n            const element = resolveElementFromTarget(target);\n            /** @type {?} */\n            let name = eventName.substr(1);\n            /** @type {?} */\n            let phase = '';\n            // @listener.phase is for trigger animation callbacks\n            // @@listener is for animation builder callbacks\n            if (name.charAt(0) != ANIMATION_PREFIX) {\n                [name, phase] = parseTriggerCallbackName(name);\n            }\n            return this.engine.listen(this.namespaceId, element, name, phase, (/**\n             * @param {?} event\n             * @return {?}\n             */\n            event => {\n                /** @type {?} */\n                const countId = ((/** @type {?} */ (event)))['_data'] || -1;\n                this.factory.scheduleListenerCallback(countId, callback, event);\n            }));\n        }\n        return this.delegate.listen(target, eventName, callback);\n    }\n}\nif (false) {\n    /** @type {?} */\n    AnimationRenderer.prototype.factory;\n}\n/**\n * @param {?} target\n * @return {?}\n */\nfunction resolveElementFromTarget(target) {\n    switch (target) {\n        case 'body':\n            return document.body;\n        case 'document':\n            return document;\n        case 'window':\n            return window;\n        default:\n            return target;\n    }\n}\n/**\n * @param {?} triggerName\n * @return {?}\n */\nfunction parseTriggerCallbackName(triggerName) {\n    /** @type {?} */\n    const dotIndex = triggerName.indexOf('.');\n    /** @type {?} */\n    const trigger = triggerName.substring(0, dotIndex);\n    /** @type {?} */\n    const phase = triggerName.substr(dotIndex + 1);\n    return [trigger, phase];\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/src/providers.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass InjectableAnimationEngine extends ɵAnimationEngine {\n    /**\n     * @param {?} doc\n     * @param {?} driver\n     * @param {?} normalizer\n     */\n    constructor(doc, driver, normalizer) {\n        super(doc.body, driver, normalizer);\n    }\n}\nInjectableAnimationEngine.ɵfac = function InjectableAnimationEngine_Factory(t) { return new (t || InjectableAnimationEngine)(ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(ɵngcc1.AnimationDriver), ɵngcc0.ɵɵinject(ɵngcc1.ɵAnimationStyleNormalizer)); };\nInjectableAnimationEngine.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: InjectableAnimationEngine, factory: InjectableAnimationEngine.ɵfac });\n/** @nocollapse */\nInjectableAnimationEngine.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: AnimationDriver },\n    { type: ɵAnimationStyleNormalizer }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(InjectableAnimationEngine, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc1.AnimationDriver }, { type: ɵngcc1.ɵAnimationStyleNormalizer }]; }, null); })();\n/**\n * @return {?}\n */\nfunction instantiateSupportedAnimationDriver() {\n    return ɵsupportsWebAnimations() ? new ɵWebAnimationsDriver() : new ɵCssKeyframesDriver();\n}\n/**\n * @return {?}\n */\nfunction instantiateDefaultStyleNormalizer() {\n    return new ɵWebAnimationsStyleNormalizer();\n}\n/**\n * @param {?} renderer\n * @param {?} engine\n * @param {?} zone\n * @return {?}\n */\nfunction instantiateRendererFactory(renderer, engine, zone) {\n    return new AnimationRendererFactory(renderer, engine, zone);\n}\n/**\n * \\@publicApi\n * @type {?}\n */\nconst ANIMATION_MODULE_TYPE = new InjectionToken('AnimationModuleType');\n/** @type {?} */\nconst SHARED_ANIMATION_PROVIDERS = [\n    { provide: AnimationBuilder, useClass: BrowserAnimationBuilder },\n    { provide: ɵAnimationStyleNormalizer, useFactory: instantiateDefaultStyleNormalizer },\n    { provide: ɵAnimationEngine, useClass: InjectableAnimationEngine }, {\n        provide: RendererFactory2,\n        useFactory: instantiateRendererFactory,\n        deps: [ɵDomRendererFactory2, ɵAnimationEngine, NgZone]\n    }\n];\n/**\n * Separate providers from the actual module so that we can do a local modification in Google3 to\n * include them in the BrowserModule.\n * @type {?}\n */\nconst BROWSER_ANIMATIONS_PROVIDERS = [\n    { provide: AnimationDriver, useFactory: instantiateSupportedAnimationDriver },\n    { provide: ANIMATION_MODULE_TYPE, useValue: 'BrowserAnimations' }, ...SHARED_ANIMATION_PROVIDERS\n];\n/**\n * Separate providers from the actual module so that we can do a local modification in Google3 to\n * include them in the BrowserTestingModule.\n * @type {?}\n */\nconst BROWSER_NOOP_ANIMATIONS_PROVIDERS = [\n    { provide: AnimationDriver, useClass: ɵNoopAnimationDriver },\n    { provide: ANIMATION_MODULE_TYPE, useValue: 'NoopAnimations' }, ...SHARED_ANIMATION_PROVIDERS\n];\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/src/module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Exports `BrowserModule` with additional [dependency-injection providers](guide/glossary#provider)\n * for use with animations. See [Animations](guide/animations).\n * \\@publicApi\n */\nclass BrowserAnimationsModule {\n}\nBrowserAnimationsModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: BrowserAnimationsModule });\nBrowserAnimationsModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function BrowserAnimationsModule_Factory(t) { return new (t || BrowserAnimationsModule)(); }, providers: BROWSER_ANIMATIONS_PROVIDERS, imports: [BrowserModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(BrowserAnimationsModule, { exports: function () { return [BrowserModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BrowserAnimationsModule, [{\n        type: NgModule,\n        args: [{\n                exports: [BrowserModule],\n                providers: BROWSER_ANIMATIONS_PROVIDERS\n            }]\n    }], null, null); })();\n/**\n * A null player that must be imported to allow disabling of animations.\n * \\@publicApi\n */\nclass NoopAnimationsModule {\n}\nNoopAnimationsModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: NoopAnimationsModule });\nNoopAnimationsModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function NoopAnimationsModule_Factory(t) { return new (t || NoopAnimationsModule)(); }, providers: BROWSER_NOOP_ANIMATIONS_PROVIDERS, imports: [BrowserModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(NoopAnimationsModule, { exports: function () { return [BrowserModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NoopAnimationsModule, [{\n        type: NgModule,\n        args: [{\n                exports: [BrowserModule],\n                providers: BROWSER_NOOP_ANIMATIONS_PROVIDERS\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/src/private_export.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/src/animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/public_api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: packages/platform-browser/animations/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ANIMATION_MODULE_TYPE, BrowserAnimationsModule, NoopAnimationsModule, AnimationRenderer as ɵAnimationRenderer, AnimationRendererFactory as ɵAnimationRendererFactory, BrowserAnimationBuilder as ɵBrowserAnimationBuilder, BrowserAnimationFactory as ɵBrowserAnimationFactory, InjectableAnimationEngine as ɵInjectableAnimationEngine, instantiateSupportedAnimationDriver as ɵangular_packages_platform_browser_animations_animations_a, instantiateDefaultStyleNormalizer as ɵangular_packages_platform_browser_animations_animations_b, instantiateRendererFactory as ɵangular_packages_platform_browser_animations_animations_c, BROWSER_ANIMATIONS_PROVIDERS as ɵangular_packages_platform_browser_animations_animations_d, BROWSER_NOOP_ANIMATIONS_PROVIDERS as ɵangular_packages_platform_browser_animations_animations_e, BaseAnimationRenderer as ɵangular_packages_platform_browser_animations_animations_f };\n\n//# sourceMappingURL=animations.js.map","import { Version, InjectionToken, isDevMode, NgModule, Optional, Inject, inject, LOCALE_ID, Injectable, ɵɵdefineInjectable, Directive, ElementRef, NgZone, Input, Component, ViewEncapsulation, ChangeDetectionStrategy, EventEmitter, ChangeDetectorRef, Output } from '@angular/core';\nimport { HighContrastModeDetector, isFakeMousedownFromScreenReader } from '@angular/cdk/a11y';\nimport { BidiModule } from '@angular/cdk/bidi';\nimport { VERSION as VERSION$2 } from '@angular/cdk';\nimport { DOCUMENT, CommonModule } from '@angular/common';\nimport { coerceBooleanProperty, coerceElement } from '@angular/cdk/coercion';\nimport { Subject, Observable } from 'rxjs';\nimport { Platform, PlatformModule, normalizePassiveListenerOptions } from '@angular/cdk/platform';\nimport { HammerGestureConfig } from '@angular/platform-browser';\nimport { startWith } from 'rxjs/operators';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\nimport { ENTER, SPACE, hasModifierKey } from '@angular/cdk/keycodes';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/version.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Current version of Angular Material.\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/cdk/platform';\nimport * as ɵngcc3 from '@angular/common';\n\nconst _c0 = [\"*\", [[\"mat-option\"], [\"ng-container\"]]];\nconst _c1 = [\"*\", \"mat-option, ng-container\"];\nfunction MatOption_mat_pseudo_checkbox_0_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelement(0, \"mat-pseudo-checkbox\", 3);\n} if (rf & 2) {\n    const ctx_r0 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"state\", ctx_r0.selected ? \"checked\" : \"unchecked\")(\"disabled\", ctx_r0.disabled);\n} }\nconst _c2 = [\"*\"];\nconst VERSION = new Version('9.2.4');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/animation/animation.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * \\@docs-private\n */\nclass AnimationCurves {\n}\nAnimationCurves.STANDARD_CURVE = 'cubic-bezier(0.4,0.0,0.2,1)';\nAnimationCurves.DECELERATION_CURVE = 'cubic-bezier(0.0,0.0,0.2,1)';\nAnimationCurves.ACCELERATION_CURVE = 'cubic-bezier(0.4,0.0,1,1)';\nAnimationCurves.SHARP_CURVE = 'cubic-bezier(0.4,0.0,0.6,1)';\nif (false) {\n    /** @type {?} */\n    AnimationCurves.STANDARD_CURVE;\n    /** @type {?} */\n    AnimationCurves.DECELERATION_CURVE;\n    /** @type {?} */\n    AnimationCurves.ACCELERATION_CURVE;\n    /** @type {?} */\n    AnimationCurves.SHARP_CURVE;\n}\n/**\n * \\@docs-private\n */\nclass AnimationDurations {\n}\nAnimationDurations.COMPLEX = '375ms';\nAnimationDurations.ENTERING = '225ms';\nAnimationDurations.EXITING = '195ms';\nif (false) {\n    /** @type {?} */\n    AnimationDurations.COMPLEX;\n    /** @type {?} */\n    AnimationDurations.ENTERING;\n    /** @type {?} */\n    AnimationDurations.EXITING;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/common-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Private version constant to circumvent test/build issues,\n// i.e. avoid core to depend on the @angular/material primary entry-point\n// Can be removed once the Material primary entry-point no longer\n// re-exports all secondary entry-points\n/** @type {?} */\nconst VERSION$1 = new Version('9.2.4');\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MATERIAL_SANITY_CHECKS_FACTORY() {\n    return true;\n}\n/**\n * Injection token that configures whether the Material sanity checks are enabled.\n * @type {?}\n */\nconst MATERIAL_SANITY_CHECKS = new InjectionToken('mat-sanity-checks', {\n    providedIn: 'root',\n    factory: MATERIAL_SANITY_CHECKS_FACTORY,\n});\n/**\n * Object that can be used to configure the sanity checks granularly.\n * @record\n */\nfunction GranularSanityChecks() { }\nif (false) {\n    /** @type {?} */\n    GranularSanityChecks.prototype.doctype;\n    /** @type {?} */\n    GranularSanityChecks.prototype.theme;\n    /** @type {?} */\n    GranularSanityChecks.prototype.version;\n    /**\n     * @deprecated No longer being used.\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     */\n    GranularSanityChecks.prototype.hammer;\n}\n/**\n * Module that captures anything that should be loaded and/or run for *all* Angular Material\n * components. This includes Bidi, etc.\n *\n * This module should be imported to each top-level component module (e.g., MatTabsModule).\n */\nclass MatCommonModule {\n    /**\n     * @param {?} highContrastModeDetector\n     * @param {?} sanityChecks\n     * @param {?=} document\n     */\n    constructor(highContrastModeDetector, sanityChecks, \n    /** @breaking-change 11.0.0 make document required */\n    document) {\n        /**\n         * Whether we've done the global sanity checks (e.g. a theme is loaded, there is a doctype).\n         */\n        this._hasDoneGlobalChecks = false;\n        this._document = document;\n        // While A11yModule also does this, we repeat it here to avoid importing A11yModule\n        // in MatCommonModule.\n        highContrastModeDetector._applyBodyHighContrastModeCssClasses();\n        // Note that `_sanityChecks` is typed to `any`, because AoT\n        // throws an error if we use the `SanityChecks` type directly.\n        this._sanityChecks = sanityChecks;\n        if (!this._hasDoneGlobalChecks) {\n            this._checkDoctypeIsDefined();\n            this._checkThemeIsPresent();\n            this._checkCdkVersionMatch();\n            this._hasDoneGlobalChecks = true;\n        }\n    }\n    /**\n     * Access injected document if available or fallback to global document reference\n     * @private\n     * @return {?}\n     */\n    _getDocument() {\n        /** @type {?} */\n        const doc = this._document || document;\n        return typeof doc === 'object' && doc ? doc : null;\n    }\n    /**\n     * Use defaultView of injected document if available or fallback to global window reference\n     * @private\n     * @return {?}\n     */\n    _getWindow() {\n        /** @type {?} */\n        const doc = this._getDocument();\n        /** @type {?} */\n        const win = (doc === null || doc === void 0 ? void 0 : doc.defaultView) || window;\n        return typeof win === 'object' && win ? win : null;\n    }\n    /**\n     * Whether any sanity checks are enabled.\n     * @private\n     * @return {?}\n     */\n    _checksAreEnabled() {\n        return isDevMode() && !this._isTestEnv();\n    }\n    /**\n     * Whether the code is running in tests.\n     * @private\n     * @return {?}\n     */\n    _isTestEnv() {\n        /** @type {?} */\n        const window = (/** @type {?} */ (this._getWindow()));\n        return window && (window.__karma__ || window.jasmine);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkDoctypeIsDefined() {\n        /** @type {?} */\n        const isEnabled = this._checksAreEnabled() &&\n            (this._sanityChecks === true || ((/** @type {?} */ (this._sanityChecks))).doctype);\n        /** @type {?} */\n        const document = this._getDocument();\n        if (isEnabled && document && !document.doctype) {\n            console.warn('Current document does not have a doctype. This may cause ' +\n                'some Angular Material components not to behave as expected.');\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _checkThemeIsPresent() {\n        // We need to assert that the `body` is defined, because these checks run very early\n        // and the `body` won't be defined if the consumer put their scripts in the `head`.\n        /** @type {?} */\n        const isDisabled = !this._checksAreEnabled() ||\n            (this._sanityChecks === false || !((/** @type {?} */ (this._sanityChecks))).theme);\n        /** @type {?} */\n        const document = this._getDocument();\n        if (isDisabled || !document || !document.body ||\n            typeof getComputedStyle !== 'function') {\n            return;\n        }\n        /** @type {?} */\n        const testElement = document.createElement('div');\n        testElement.classList.add('mat-theme-loaded-marker');\n        document.body.appendChild(testElement);\n        /** @type {?} */\n        const computedStyle = getComputedStyle(testElement);\n        // In some situations the computed style of the test element can be null. For example in\n        // Firefox, the computed style is null if an application is running inside of a hidden iframe.\n        // See: https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n        if (computedStyle && computedStyle.display !== 'none') {\n            console.warn('Could not find Angular Material core theme. Most Material ' +\n                'components may not work as expected. For more info refer ' +\n                'to the theming guide: https://material.angular.io/guide/theming');\n        }\n        document.body.removeChild(testElement);\n    }\n    /**\n     * Checks whether the material version matches the cdk version\n     * @private\n     * @return {?}\n     */\n    _checkCdkVersionMatch() {\n        /** @type {?} */\n        const isEnabled = this._checksAreEnabled() &&\n            (this._sanityChecks === true || ((/** @type {?} */ (this._sanityChecks))).version);\n        if (isEnabled && VERSION$1.full !== VERSION$2.full) {\n            console.warn('The Angular Material version (' + VERSION$1.full + ') does not match ' +\n                'the Angular CDK version (' + VERSION$2.full + ').\\n' +\n                'Please ensure the versions of these two packages exactly match.');\n        }\n    }\n}\nMatCommonModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatCommonModule });\nMatCommonModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatCommonModule_Factory(t) { return new (t || MatCommonModule)(ɵngcc0.ɵɵinject(ɵngcc1.HighContrastModeDetector), ɵngcc0.ɵɵinject(MATERIAL_SANITY_CHECKS, 8), ɵngcc0.ɵɵinject(DOCUMENT, 8)); }, imports: [[BidiModule], BidiModule] });\n/** @nocollapse */\nMatCommonModule.ctorParameters = () => [\n    { type: HighContrastModeDetector },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MATERIAL_SANITY_CHECKS,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] }\n];\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatCommonModule, { imports: function () { return [BidiModule]; }, exports: function () { return [BidiModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatCommonModule, [{\n        type: NgModule,\n        args: [{\n                imports: [BidiModule],\n                exports: [BidiModule]\n            }]\n    }], function () { return [{ type: ɵngcc1.HighContrastModeDetector }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MATERIAL_SANITY_CHECKS]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * Whether we've done the global sanity checks (e.g. a theme is loaded, there is a doctype).\n     * @type {?}\n     * @private\n     */\n    MatCommonModule.prototype._hasDoneGlobalChecks;\n    /**\n     * Configured sanity checks.\n     * @type {?}\n     * @private\n     */\n    MatCommonModule.prototype._sanityChecks;\n    /**\n     * Used to reference correct document/window\n     * @type {?}\n     * @protected\n     */\n    MatCommonModule.prototype._document;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/disabled.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@docs-private\n * @record\n */\nfunction CanDisable() { }\nif (false) {\n    /**\n     * Whether the component is disabled.\n     * @type {?}\n     */\n    CanDisable.prototype.disabled;\n}\n/**\n * Mixin to augment a directive with a `disabled` property.\n * @template T\n * @param {?} base\n * @return {?}\n */\nfunction mixinDisabled(base) {\n    return class extends base {\n        /**\n         * @param {...?} args\n         */\n        constructor(...args) {\n            super(...args);\n            this._disabled = false;\n        }\n        /**\n         * @return {?}\n         */\n        get disabled() { return this._disabled; }\n        /**\n         * @param {?} value\n         * @return {?}\n         */\n        set disabled(value) { this._disabled = coerceBooleanProperty(value); }\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/color.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * \\@docs-private\n * @record\n */\nfunction CanColor() { }\nif (false) {\n    /**\n     * Theme color palette for the component.\n     * @type {?}\n     */\n    CanColor.prototype.color;\n}\n/**\n * \\@docs-private\n * @record\n */\nfunction HasElementRef() { }\nif (false) {\n    /** @type {?} */\n    HasElementRef.prototype._elementRef;\n}\n/**\n * Mixin to augment a directive with a `color` property.\n * @template T\n * @param {?} base\n * @param {?=} defaultColor\n * @return {?}\n */\nfunction mixinColor(base, defaultColor) {\n    return class extends base {\n        /**\n         * @param {...?} args\n         */\n        constructor(...args) {\n            super(...args);\n            // Set the default color that can be specified from the mixin.\n            this.color = defaultColor;\n        }\n        /**\n         * @return {?}\n         */\n        get color() { return this._color; }\n        /**\n         * @param {?} value\n         * @return {?}\n         */\n        set color(value) {\n            /** @type {?} */\n            const colorPalette = value || defaultColor;\n            if (colorPalette !== this._color) {\n                if (this._color) {\n                    this._elementRef.nativeElement.classList.remove(`mat-${this._color}`);\n                }\n                if (colorPalette) {\n                    this._elementRef.nativeElement.classList.add(`mat-${colorPalette}`);\n                }\n                this._color = colorPalette;\n            }\n        }\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/disable-ripple.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@docs-private\n * @record\n */\nfunction CanDisableRipple() { }\nif (false) {\n    /**\n     * Whether ripples are disabled.\n     * @type {?}\n     */\n    CanDisableRipple.prototype.disableRipple;\n}\n/**\n * Mixin to augment a directive with a `disableRipple` property.\n * @template T\n * @param {?} base\n * @return {?}\n */\nfunction mixinDisableRipple(base) {\n    return class extends base {\n        /**\n         * @param {...?} args\n         */\n        constructor(...args) {\n            super(...args);\n            this._disableRipple = false;\n        }\n        /**\n         * Whether the ripple effect is disabled or not.\n         * @return {?}\n         */\n        get disableRipple() { return this._disableRipple; }\n        /**\n         * @param {?} value\n         * @return {?}\n         */\n        set disableRipple(value) { this._disableRipple = coerceBooleanProperty(value); }\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/tabindex.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * \\@docs-private\n * @record\n */\nfunction HasTabIndex() { }\nif (false) {\n    /**\n     * Tabindex of the component.\n     * @type {?}\n     */\n    HasTabIndex.prototype.tabIndex;\n}\n/**\n * Mixin to augment a directive with a `tabIndex` property.\n * @template T\n * @param {?} base\n * @param {?=} defaultTabIndex\n * @return {?}\n */\nfunction mixinTabIndex(base, defaultTabIndex = 0) {\n    return class extends base {\n        /**\n         * @param {...?} args\n         */\n        constructor(...args) {\n            super(...args);\n            this._tabIndex = defaultTabIndex;\n        }\n        /**\n         * @return {?}\n         */\n        get tabIndex() { return this.disabled ? -1 : this._tabIndex; }\n        /**\n         * @param {?} value\n         * @return {?}\n         */\n        set tabIndex(value) {\n            // If the specified tabIndex value is null or undefined, fall back to the default value.\n            this._tabIndex = value != null ? value : defaultTabIndex;\n        }\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/error-state.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * \\@docs-private\n * @record\n */\nfunction CanUpdateErrorState() { }\nif (false) {\n    /** @type {?} */\n    CanUpdateErrorState.prototype.stateChanges;\n    /** @type {?} */\n    CanUpdateErrorState.prototype.errorState;\n    /** @type {?} */\n    CanUpdateErrorState.prototype.errorStateMatcher;\n    /**\n     * @return {?}\n     */\n    CanUpdateErrorState.prototype.updateErrorState = function () { };\n}\n/**\n * \\@docs-private\n * @record\n */\nfunction HasErrorState() { }\nif (false) {\n    /** @type {?} */\n    HasErrorState.prototype._parentFormGroup;\n    /** @type {?} */\n    HasErrorState.prototype._parentForm;\n    /** @type {?} */\n    HasErrorState.prototype._defaultErrorStateMatcher;\n    /** @type {?} */\n    HasErrorState.prototype.ngControl;\n}\n/**\n * Mixin to augment a directive with updateErrorState method.\n * For component with `errorState` and need to update `errorState`.\n * @template T\n * @param {?} base\n * @return {?}\n */\nfunction mixinErrorState(base) {\n    return class extends base {\n        /**\n         * @param {...?} args\n         */\n        constructor(...args) {\n            super(...args);\n            /**\n             * Whether the component is in an error state.\n             */\n            this.errorState = false;\n            /**\n             * Stream that emits whenever the state of the input changes such that the wrapping\n             * `MatFormField` needs to run change detection.\n             */\n            this.stateChanges = new Subject();\n        }\n        /**\n         * @return {?}\n         */\n        updateErrorState() {\n            /** @type {?} */\n            const oldState = this.errorState;\n            /** @type {?} */\n            const parent = this._parentFormGroup || this._parentForm;\n            /** @type {?} */\n            const matcher = this.errorStateMatcher || this._defaultErrorStateMatcher;\n            /** @type {?} */\n            const control = this.ngControl ? (/** @type {?} */ (this.ngControl.control)) : null;\n            /** @type {?} */\n            const newState = matcher.isErrorState(control, parent);\n            if (newState !== oldState) {\n                this.errorState = newState;\n                this.stateChanges.next();\n            }\n        }\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/initialized.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Mixin that adds an initialized property to a directive which, when subscribed to, will emit a\n * value once markInitialized has been called, which should be done during the ngOnInit function.\n * If the subscription is made after it has already been marked as initialized, then it will trigger\n * an emit immediately.\n * \\@docs-private\n * @record\n */\nfunction HasInitialized() { }\nif (false) {\n    /**\n     * Stream that emits once during the directive/component's ngOnInit.\n     * @type {?}\n     */\n    HasInitialized.prototype.initialized;\n    /**\n     * Sets the state as initialized and must be called during ngOnInit to notify subscribers that\n     * the directive has been initialized.\n     * \\@docs-private\n     * @type {?}\n     */\n    HasInitialized.prototype._markInitialized;\n}\n/**\n * Mixin to augment a directive with an initialized property that will emits when ngOnInit ends.\n * @template T\n * @param {?} base\n * @return {?}\n */\nfunction mixinInitialized(base) {\n    return class extends base {\n        /**\n         * @param {...?} args\n         */\n        constructor(...args) {\n            super(...args);\n            /**\n             * Whether this directive has been marked as initialized.\n             */\n            this._isInitialized = false;\n            /**\n             * List of subscribers that subscribed before the directive was initialized. Should be notified\n             * during _markInitialized. Set to null after pending subscribers are notified, and should\n             * not expect to be populated after.\n             */\n            this._pendingSubscribers = [];\n            /**\n             * Observable stream that emits when the directive initializes. If already initialized, the\n             * subscriber is stored to be notified once _markInitialized is called.\n             */\n            this.initialized = new Observable((/**\n             * @param {?} subscriber\n             * @return {?}\n             */\n            subscriber => {\n                // If initialized, immediately notify the subscriber. Otherwise store the subscriber to notify\n                // when _markInitialized is called.\n                if (this._isInitialized) {\n                    this._notifySubscriber(subscriber);\n                }\n                else {\n                    (/** @type {?} */ (this._pendingSubscribers)).push(subscriber);\n                }\n            }));\n        }\n        /**\n         * Marks the state as initialized and notifies pending subscribers. Should be called at the end\n         * of ngOnInit.\n         * \\@docs-private\n         * @return {?}\n         */\n        _markInitialized() {\n            if (this._isInitialized) {\n                throw Error('This directive has already been marked as initialized and ' +\n                    'should not be called twice.');\n            }\n            this._isInitialized = true;\n            (/** @type {?} */ (this._pendingSubscribers)).forEach(this._notifySubscriber);\n            this._pendingSubscribers = null;\n        }\n        /**\n         * Emits and completes the subscriber stream (should only emit once).\n         * @param {?} subscriber\n         * @return {?}\n         */\n        _notifySubscriber(subscriber) {\n            subscriber.next();\n            subscriber.complete();\n        }\n    };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/common-behaviors/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/datetime/date-adapter.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * InjectionToken for datepicker that can be used to override default locale code.\n * @type {?}\n */\nconst MAT_DATE_LOCALE = new InjectionToken('MAT_DATE_LOCALE', {\n    providedIn: 'root',\n    factory: MAT_DATE_LOCALE_FACTORY,\n});\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MAT_DATE_LOCALE_FACTORY() {\n    return inject(LOCALE_ID);\n}\n/**\n * No longer needed since MAT_DATE_LOCALE has been changed to a scoped injectable.\n * If you are importing and providing this in your code you can simply remove it.\n * @deprecated\n * \\@breaking-change 8.0.0\n * @type {?}\n */\nconst MAT_DATE_LOCALE_PROVIDER = { provide: MAT_DATE_LOCALE, useExisting: LOCALE_ID };\n/**\n * Adapts type `D` to be usable as a date by cdk-based components that work with dates.\n * @abstract\n * @template D\n */\nclass DateAdapter {\n    constructor() {\n        this._localeChanges = new Subject();\n    }\n    /**\n     * A stream that emits when the locale changes.\n     * @return {?}\n     */\n    get localeChanges() { return this._localeChanges; }\n    /**\n     * Attempts to deserialize a value to a valid date object. This is different from parsing in that\n     * deserialize should only accept non-ambiguous, locale-independent formats (e.g. a ISO 8601\n     * string). The default implementation does not allow any deserialization, it simply checks that\n     * the given value is already a valid date object or null. The `<mat-datepicker>` will call this\n     * method on all of its `\\@Input()` properties that accept dates. It is therefore possible to\n     * support passing values from your backend directly to these properties by overriding this method\n     * to also deserialize the format used by your backend.\n     * @param {?} value The value to be deserialized into a date object.\n     * @return {?} The deserialized date object, either a valid date, null if the value can be\n     *     deserialized into a null date (e.g. the empty string), or an invalid date.\n     */\n    deserialize(value) {\n        if (value == null || this.isDateInstance(value) && this.isValid(value)) {\n            return value;\n        }\n        return this.invalid();\n    }\n    /**\n     * Sets the locale used for all dates.\n     * @param {?} locale The new locale.\n     * @return {?}\n     */\n    setLocale(locale) {\n        this.locale = locale;\n        this._localeChanges.next();\n    }\n    /**\n     * Compares two dates.\n     * @param {?} first The first date to compare.\n     * @param {?} second The second date to compare.\n     * @return {?} 0 if the dates are equal, a number less than 0 if the first date is earlier,\n     *     a number greater than 0 if the first date is later.\n     */\n    compareDate(first, second) {\n        return this.getYear(first) - this.getYear(second) ||\n            this.getMonth(first) - this.getMonth(second) ||\n            this.getDate(first) - this.getDate(second);\n    }\n    /**\n     * Checks if two dates are equal.\n     * @param {?} first The first date to check.\n     * @param {?} second The second date to check.\n     * @return {?} Whether the two dates are equal.\n     *     Null dates are considered equal to other null dates.\n     */\n    sameDate(first, second) {\n        if (first && second) {\n            /** @type {?} */\n            let firstValid = this.isValid(first);\n            /** @type {?} */\n            let secondValid = this.isValid(second);\n            if (firstValid && secondValid) {\n                return !this.compareDate(first, second);\n            }\n            return firstValid == secondValid;\n        }\n        return first == second;\n    }\n    /**\n     * Clamp the given date between min and max dates.\n     * @param {?} date The date to clamp.\n     * @param {?=} min The minimum value to allow. If null or omitted no min is enforced.\n     * @param {?=} max The maximum value to allow. If null or omitted no max is enforced.\n     * @return {?} `min` if `date` is less than `min`, `max` if date is greater than `max`,\n     *     otherwise `date`.\n     */\n    clampDate(date, min, max) {\n        if (min && this.compareDate(date, min) < 0) {\n            return min;\n        }\n        if (max && this.compareDate(date, max) > 0) {\n            return max;\n        }\n        return date;\n    }\n}\nif (false) {\n    /**\n     * The locale to use for all dates.\n     * @type {?}\n     * @protected\n     */\n    DateAdapter.prototype.locale;\n    /**\n     * @type {?}\n     * @protected\n     */\n    DateAdapter.prototype._localeChanges;\n    /**\n     * Gets the year component of the given date.\n     * @abstract\n     * @param {?} date The date to extract the year from.\n     * @return {?} The year component.\n     */\n    DateAdapter.prototype.getYear = function (date) { };\n    /**\n     * Gets the month component of the given date.\n     * @abstract\n     * @param {?} date The date to extract the month from.\n     * @return {?} The month component (0-indexed, 0 = January).\n     */\n    DateAdapter.prototype.getMonth = function (date) { };\n    /**\n     * Gets the date of the month component of the given date.\n     * @abstract\n     * @param {?} date The date to extract the date of the month from.\n     * @return {?} The month component (1-indexed, 1 = first of month).\n     */\n    DateAdapter.prototype.getDate = function (date) { };\n    /**\n     * Gets the day of the week component of the given date.\n     * @abstract\n     * @param {?} date The date to extract the day of the week from.\n     * @return {?} The month component (0-indexed, 0 = Sunday).\n     */\n    DateAdapter.prototype.getDayOfWeek = function (date) { };\n    /**\n     * Gets a list of names for the months.\n     * @abstract\n     * @param {?} style The naming style (e.g. long = 'January', short = 'Jan', narrow = 'J').\n     * @return {?} An ordered list of all month names, starting with January.\n     */\n    DateAdapter.prototype.getMonthNames = function (style) { };\n    /**\n     * Gets a list of names for the dates of the month.\n     * @abstract\n     * @return {?} An ordered list of all date of the month names, starting with '1'.\n     */\n    DateAdapter.prototype.getDateNames = function () { };\n    /**\n     * Gets a list of names for the days of the week.\n     * @abstract\n     * @param {?} style The naming style (e.g. long = 'Sunday', short = 'Sun', narrow = 'S').\n     * @return {?} An ordered list of all weekday names, starting with Sunday.\n     */\n    DateAdapter.prototype.getDayOfWeekNames = function (style) { };\n    /**\n     * Gets the name for the year of the given date.\n     * @abstract\n     * @param {?} date The date to get the year name for.\n     * @return {?} The name of the given year (e.g. '2017').\n     */\n    DateAdapter.prototype.getYearName = function (date) { };\n    /**\n     * Gets the first day of the week.\n     * @abstract\n     * @return {?} The first day of the week (0-indexed, 0 = Sunday).\n     */\n    DateAdapter.prototype.getFirstDayOfWeek = function () { };\n    /**\n     * Gets the number of days in the month of the given date.\n     * @abstract\n     * @param {?} date The date whose month should be checked.\n     * @return {?} The number of days in the month of the given date.\n     */\n    DateAdapter.prototype.getNumDaysInMonth = function (date) { };\n    /**\n     * Clones the given date.\n     * @abstract\n     * @param {?} date The date to clone\n     * @return {?} A new date equal to the given date.\n     */\n    DateAdapter.prototype.clone = function (date) { };\n    /**\n     * Creates a date with the given year, month, and date. Does not allow over/under-flow of the\n     * month and date.\n     * @abstract\n     * @param {?} year The full year of the date. (e.g. 89 means the year 89, not the year 1989).\n     * @param {?} month The month of the date (0-indexed, 0 = January). Must be an integer 0 - 11.\n     * @param {?} date The date of month of the date. Must be an integer 1 - length of the given month.\n     * @return {?} The new date, or null if invalid.\n     */\n    DateAdapter.prototype.createDate = function (year, month, date) { };\n    /**\n     * Gets today's date.\n     * @abstract\n     * @return {?} Today's date.\n     */\n    DateAdapter.prototype.today = function () { };\n    /**\n     * Parses a date from a user-provided value.\n     * @abstract\n     * @param {?} value The value to parse.\n     * @param {?} parseFormat The expected format of the value being parsed\n     *     (type is implementation-dependent).\n     * @return {?} The parsed date.\n     */\n    DateAdapter.prototype.parse = function (value, parseFormat) { };\n    /**\n     * Formats a date as a string according to the given format.\n     * @abstract\n     * @param {?} date The value to format.\n     * @param {?} displayFormat The format to use to display the date as a string.\n     * @return {?} The formatted date string.\n     */\n    DateAdapter.prototype.format = function (date, displayFormat) { };\n    /**\n     * Adds the given number of years to the date. Years are counted as if flipping 12 pages on the\n     * calendar for each year and then finding the closest date in the new month. For example when\n     * adding 1 year to Feb 29, 2016, the resulting date will be Feb 28, 2017.\n     * @abstract\n     * @param {?} date The date to add years to.\n     * @param {?} years The number of years to add (may be negative).\n     * @return {?} A new date equal to the given one with the specified number of years added.\n     */\n    DateAdapter.prototype.addCalendarYears = function (date, years) { };\n    /**\n     * Adds the given number of months to the date. Months are counted as if flipping a page on the\n     * calendar for each month and then finding the closest date in the new month. For example when\n     * adding 1 month to Jan 31, 2017, the resulting date will be Feb 28, 2017.\n     * @abstract\n     * @param {?} date The date to add months to.\n     * @param {?} months The number of months to add (may be negative).\n     * @return {?} A new date equal to the given one with the specified number of months added.\n     */\n    DateAdapter.prototype.addCalendarMonths = function (date, months) { };\n    /**\n     * Adds the given number of days to the date. Days are counted as if moving one cell on the\n     * calendar for each day.\n     * @abstract\n     * @param {?} date The date to add days to.\n     * @param {?} days The number of days to add (may be negative).\n     * @return {?} A new date equal to the given one with the specified number of days added.\n     */\n    DateAdapter.prototype.addCalendarDays = function (date, days) { };\n    /**\n     * Gets the RFC 3339 compatible string (https://tools.ietf.org/html/rfc3339) for the given date.\n     * This method is used to generate date strings that are compatible with native HTML attributes\n     * such as the `min` or `max` attribute of an `<input>`.\n     * @abstract\n     * @param {?} date The date to get the ISO date string for.\n     * @return {?} The ISO date string date string.\n     */\n    DateAdapter.prototype.toIso8601 = function (date) { };\n    /**\n     * Checks whether the given object is considered a date instance by this DateAdapter.\n     * @abstract\n     * @param {?} obj The object to check\n     * @return {?} Whether the object is a date instance.\n     */\n    DateAdapter.prototype.isDateInstance = function (obj) { };\n    /**\n     * Checks whether the given date is valid.\n     * @abstract\n     * @param {?} date The date to check.\n     * @return {?} Whether the date is valid.\n     */\n    DateAdapter.prototype.isValid = function (date) { };\n    /**\n     * Gets date instance that is not valid.\n     * @abstract\n     * @return {?} An invalid date.\n     */\n    DateAdapter.prototype.invalid = function () { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/datetime/date-formats.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst MAT_DATE_FORMATS = new InjectionToken('mat-date-formats');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/datetime/native-date-adapter.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// TODO(mmalerba): Remove when we no longer support safari 9.\n/**\n * Whether the browser supports the Intl API.\n * @type {?}\n */\nlet SUPPORTS_INTL_API;\n// We need a try/catch around the reference to `Intl`, because accessing it in some cases can\n// cause IE to throw. These cases are tied to particular versions of Windows and can happen if\n// the consumer is providing a polyfilled `Map`. See:\n// https://github.com/Microsoft/ChakraCore/issues/3189\n// https://github.com/angular/components/issues/15687\ntry {\n    SUPPORTS_INTL_API = typeof Intl != 'undefined';\n}\ncatch (_a) {\n    SUPPORTS_INTL_API = false;\n}\n/**\n * The default month names to use if Intl API is not available.\n * @type {?}\n */\nconst DEFAULT_MONTH_NAMES = {\n    'long': [\n        'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September',\n        'October', 'November', 'December'\n    ],\n    'short': ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],\n    'narrow': ['J', 'F', 'M', 'A', 'M', 'J', 'J', 'A', 'S', 'O', 'N', 'D']\n};\nconst ɵ0 = /**\n * @param {?} i\n * @return {?}\n */\ni => String(i + 1);\n/**\n * The default date names to use if Intl API is not available.\n * @type {?}\n */\nconst DEFAULT_DATE_NAMES = range(31, (ɵ0));\n/**\n * The default day of the week names to use if Intl API is not available.\n * @type {?}\n */\nconst DEFAULT_DAY_OF_WEEK_NAMES = {\n    'long': ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],\n    'short': ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],\n    'narrow': ['S', 'M', 'T', 'W', 'T', 'F', 'S']\n};\n/**\n * Matches strings that have the form of a valid RFC 3339 string\n * (https://tools.ietf.org/html/rfc3339). Note that the string may not actually be a valid date\n * because the regex will match strings an with out of bounds month, date, etc.\n * @type {?}\n */\nconst ISO_8601_REGEX = /^\\d{4}-\\d{2}-\\d{2}(?:T\\d{2}:\\d{2}:\\d{2}(?:\\.\\d+)?(?:Z|(?:(?:\\+|-)\\d{2}:\\d{2}))?)?$/;\n/**\n * Creates an array and fills it with values.\n * @template T\n * @param {?} length\n * @param {?} valueFunction\n * @return {?}\n */\nfunction range(length, valueFunction) {\n    /** @type {?} */\n    const valuesArray = Array(length);\n    for (let i = 0; i < length; i++) {\n        valuesArray[i] = valueFunction(i);\n    }\n    return valuesArray;\n}\n/**\n * Adapts the native JS Date for use with cdk-based components that work with dates.\n */\nclass NativeDateAdapter extends DateAdapter {\n    /**\n     * @param {?} matDateLocale\n     * @param {?} platform\n     */\n    constructor(matDateLocale, platform) {\n        super();\n        /**\n         * Whether to use `timeZone: 'utc'` with `Intl.DateTimeFormat` when formatting dates.\n         * Without this `Intl.DateTimeFormat` sometimes chooses the wrong timeZone, which can throw off\n         * the result. (e.g. in the en-US locale `new Date(1800, 7, 14).toLocaleDateString()`\n         * will produce `'8/13/1800'`.\n         *\n         * TODO(mmalerba): drop this variable. It's not being used in the code right now. We're now\n         * getting the string representation of a Date object from its utc representation. We're keeping\n         * it here for sometime, just for precaution, in case we decide to revert some of these changes\n         * though.\n         */\n        this.useUtcForDisplay = true;\n        super.setLocale(matDateLocale);\n        // IE does its own time zone correction, so we disable this on IE.\n        this.useUtcForDisplay = !platform.TRIDENT;\n        this._clampDate = platform.TRIDENT || platform.EDGE;\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    getYear(date) {\n        return date.getFullYear();\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    getMonth(date) {\n        return date.getMonth();\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    getDate(date) {\n        return date.getDate();\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    getDayOfWeek(date) {\n        return date.getDay();\n    }\n    /**\n     * @param {?} style\n     * @return {?}\n     */\n    getMonthNames(style) {\n        if (SUPPORTS_INTL_API) {\n            /** @type {?} */\n            const dtf = new Intl.DateTimeFormat(this.locale, { month: style, timeZone: 'utc' });\n            return range(12, (/**\n             * @param {?} i\n             * @return {?}\n             */\n            i => this._stripDirectionalityCharacters(this._format(dtf, new Date(2017, i, 1)))));\n        }\n        return DEFAULT_MONTH_NAMES[style];\n    }\n    /**\n     * @return {?}\n     */\n    getDateNames() {\n        if (SUPPORTS_INTL_API) {\n            /** @type {?} */\n            const dtf = new Intl.DateTimeFormat(this.locale, { day: 'numeric', timeZone: 'utc' });\n            return range(31, (/**\n             * @param {?} i\n             * @return {?}\n             */\n            i => this._stripDirectionalityCharacters(this._format(dtf, new Date(2017, 0, i + 1)))));\n        }\n        return DEFAULT_DATE_NAMES;\n    }\n    /**\n     * @param {?} style\n     * @return {?}\n     */\n    getDayOfWeekNames(style) {\n        if (SUPPORTS_INTL_API) {\n            /** @type {?} */\n            const dtf = new Intl.DateTimeFormat(this.locale, { weekday: style, timeZone: 'utc' });\n            return range(7, (/**\n             * @param {?} i\n             * @return {?}\n             */\n            i => this._stripDirectionalityCharacters(this._format(dtf, new Date(2017, 0, i + 1)))));\n        }\n        return DEFAULT_DAY_OF_WEEK_NAMES[style];\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    getYearName(date) {\n        if (SUPPORTS_INTL_API) {\n            /** @type {?} */\n            const dtf = new Intl.DateTimeFormat(this.locale, { year: 'numeric', timeZone: 'utc' });\n            return this._stripDirectionalityCharacters(this._format(dtf, date));\n        }\n        return String(this.getYear(date));\n    }\n    /**\n     * @return {?}\n     */\n    getFirstDayOfWeek() {\n        // We can't tell using native JS Date what the first day of the week is, we default to Sunday.\n        return 0;\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    getNumDaysInMonth(date) {\n        return this.getDate(this._createDateWithOverflow(this.getYear(date), this.getMonth(date) + 1, 0));\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    clone(date) {\n        return new Date(date.getTime());\n    }\n    /**\n     * @param {?} year\n     * @param {?} month\n     * @param {?} date\n     * @return {?}\n     */\n    createDate(year, month, date) {\n        // Check for invalid month and date (except upper bound on date which we have to check after\n        // creating the Date).\n        if (month < 0 || month > 11) {\n            throw Error(`Invalid month index \"${month}\". Month index has to be between 0 and 11.`);\n        }\n        if (date < 1) {\n            throw Error(`Invalid date \"${date}\". Date has to be greater than 0.`);\n        }\n        /** @type {?} */\n        let result = this._createDateWithOverflow(year, month, date);\n        // Check that the date wasn't above the upper bound for the month, causing the month to overflow\n        if (result.getMonth() != month) {\n            throw Error(`Invalid date \"${date}\" for month with index \"${month}\".`);\n        }\n        return result;\n    }\n    /**\n     * @return {?}\n     */\n    today() {\n        return new Date();\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    parse(value) {\n        // We have no way using the native JS Date to set the parse format or locale, so we ignore these\n        // parameters.\n        if (typeof value == 'number') {\n            return new Date(value);\n        }\n        return value ? new Date(Date.parse(value)) : null;\n    }\n    /**\n     * @param {?} date\n     * @param {?} displayFormat\n     * @return {?}\n     */\n    format(date, displayFormat) {\n        if (!this.isValid(date)) {\n            throw Error('NativeDateAdapter: Cannot format invalid date.');\n        }\n        if (SUPPORTS_INTL_API) {\n            // On IE and Edge the i18n API will throw a hard error that can crash the entire app\n            // if we attempt to format a date whose year is less than 1 or greater than 9999.\n            if (this._clampDate && (date.getFullYear() < 1 || date.getFullYear() > 9999)) {\n                date = this.clone(date);\n                date.setFullYear(Math.max(1, Math.min(9999, date.getFullYear())));\n            }\n            displayFormat = Object.assign(Object.assign({}, displayFormat), { timeZone: 'utc' });\n            /** @type {?} */\n            const dtf = new Intl.DateTimeFormat(this.locale, displayFormat);\n            return this._stripDirectionalityCharacters(this._format(dtf, date));\n        }\n        return this._stripDirectionalityCharacters(date.toDateString());\n    }\n    /**\n     * @param {?} date\n     * @param {?} years\n     * @return {?}\n     */\n    addCalendarYears(date, years) {\n        return this.addCalendarMonths(date, years * 12);\n    }\n    /**\n     * @param {?} date\n     * @param {?} months\n     * @return {?}\n     */\n    addCalendarMonths(date, months) {\n        /** @type {?} */\n        let newDate = this._createDateWithOverflow(this.getYear(date), this.getMonth(date) + months, this.getDate(date));\n        // It's possible to wind up in the wrong month if the original month has more days than the new\n        // month. In this case we want to go to the last day of the desired month.\n        // Note: the additional + 12 % 12 ensures we end up with a positive number, since JS % doesn't\n        // guarantee this.\n        if (this.getMonth(newDate) != ((this.getMonth(date) + months) % 12 + 12) % 12) {\n            newDate = this._createDateWithOverflow(this.getYear(newDate), this.getMonth(newDate), 0);\n        }\n        return newDate;\n    }\n    /**\n     * @param {?} date\n     * @param {?} days\n     * @return {?}\n     */\n    addCalendarDays(date, days) {\n        return this._createDateWithOverflow(this.getYear(date), this.getMonth(date), this.getDate(date) + days);\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    toIso8601(date) {\n        return [\n            date.getUTCFullYear(),\n            this._2digit(date.getUTCMonth() + 1),\n            this._2digit(date.getUTCDate())\n        ].join('-');\n    }\n    /**\n     * Returns the given value if given a valid Date or null. Deserializes valid ISO 8601 strings\n     * (https://www.ietf.org/rfc/rfc3339.txt) into valid Dates and empty string into null. Returns an\n     * invalid date for all other values.\n     * @param {?} value\n     * @return {?}\n     */\n    deserialize(value) {\n        if (typeof value === 'string') {\n            if (!value) {\n                return null;\n            }\n            // The `Date` constructor accepts formats other than ISO 8601, so we need to make sure the\n            // string is the right format first.\n            if (ISO_8601_REGEX.test(value)) {\n                /** @type {?} */\n                let date = new Date(value);\n                if (this.isValid(date)) {\n                    return date;\n                }\n            }\n        }\n        return super.deserialize(value);\n    }\n    /**\n     * @param {?} obj\n     * @return {?}\n     */\n    isDateInstance(obj) {\n        return obj instanceof Date;\n    }\n    /**\n     * @param {?} date\n     * @return {?}\n     */\n    isValid(date) {\n        return !isNaN(date.getTime());\n    }\n    /**\n     * @return {?}\n     */\n    invalid() {\n        return new Date(NaN);\n    }\n    /**\n     * Creates a date but allows the month and date to overflow.\n     * @private\n     * @param {?} year\n     * @param {?} month\n     * @param {?} date\n     * @return {?}\n     */\n    _createDateWithOverflow(year, month, date) {\n        /** @type {?} */\n        const result = new Date(year, month, date);\n        // We need to correct for the fact that JS native Date treats years in range [0, 99] as\n        // abbreviations for 19xx.\n        if (year >= 0 && year < 100) {\n            result.setFullYear(this.getYear(result) - 1900);\n        }\n        return result;\n    }\n    /**\n     * Pads a number to make it two digits.\n     * @private\n     * @param {?} n The number to pad.\n     * @return {?} The padded number.\n     */\n    _2digit(n) {\n        return ('00' + n).slice(-2);\n    }\n    /**\n     * Strip out unicode LTR and RTL characters. Edge and IE insert these into formatted dates while\n     * other browsers do not. We remove them to make output consistent and because they interfere with\n     * date parsing.\n     * @private\n     * @param {?} str The string to strip direction characters from.\n     * @return {?} The stripped string.\n     */\n    _stripDirectionalityCharacters(str) {\n        return str.replace(/[\\u200e\\u200f]/g, '');\n    }\n    /**\n     * When converting Date object to string, javascript built-in functions may return wrong\n     * results because it applies its internal DST rules. The DST rules around the world change\n     * very frequently, and the current valid rule is not always valid in previous years though.\n     * We work around this problem building a new Date object which has its internal UTC\n     * representation with the local date and time.\n     * @private\n     * @param {?} dtf Intl.DateTimeFormat object, containg the desired string format. It must have\n     *    timeZone set to 'utc' to work fine.\n     * @param {?} date Date from which we want to get the string representation according to dtf\n     * @return {?} A Date object with its UTC representation based on the passed in date info\n     */\n    _format(dtf, date) {\n        /** @type {?} */\n        const d = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate(), date.getHours(), date.getMinutes(), date.getSeconds(), date.getMilliseconds()));\n        return dtf.format(d);\n    }\n}\nNativeDateAdapter.ɵfac = function NativeDateAdapter_Factory(t) { return new (t || NativeDateAdapter)(ɵngcc0.ɵɵinject(MAT_DATE_LOCALE, 8), ɵngcc0.ɵɵinject(ɵngcc2.Platform)); };\nNativeDateAdapter.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: NativeDateAdapter, factory: NativeDateAdapter.ɵfac });\n/** @nocollapse */\nNativeDateAdapter.ctorParameters = () => [\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DATE_LOCALE,] }] },\n    { type: Platform }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NativeDateAdapter, [{\n        type: Injectable\n    }], function () { return [{ type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_DATE_LOCALE]\n            }] }, { type: ɵngcc2.Platform }]; }, null); })();\nif (false) {\n    /**\n     * Whether to clamp the date between 1 and 9999 to avoid IE and Edge errors.\n     * @type {?}\n     * @private\n     */\n    NativeDateAdapter.prototype._clampDate;\n    /**\n     * Whether to use `timeZone: 'utc'` with `Intl.DateTimeFormat` when formatting dates.\n     * Without this `Intl.DateTimeFormat` sometimes chooses the wrong timeZone, which can throw off\n     * the result. (e.g. in the en-US locale `new Date(1800, 7, 14).toLocaleDateString()`\n     * will produce `'8/13/1800'`.\n     *\n     * TODO(mmalerba): drop this variable. It's not being used in the code right now. We're now\n     * getting the string representation of a Date object from its utc representation. We're keeping\n     * it here for sometime, just for precaution, in case we decide to revert some of these changes\n     * though.\n     * @type {?}\n     */\n    NativeDateAdapter.prototype.useUtcForDisplay;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/datetime/native-date-formats.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @type {?} */\nconst MAT_NATIVE_DATE_FORMATS = {\n    parse: {\n        dateInput: null,\n    },\n    display: {\n        dateInput: { year: 'numeric', month: 'numeric', day: 'numeric' },\n        monthYearLabel: { year: 'numeric', month: 'short' },\n        dateA11yLabel: { year: 'numeric', month: 'long', day: 'numeric' },\n        monthYearA11yLabel: { year: 'numeric', month: 'long' },\n    }\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/datetime/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass NativeDateModule {\n}\nNativeDateModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: NativeDateModule });\nNativeDateModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function NativeDateModule_Factory(t) { return new (t || NativeDateModule)(); }, providers: [\n        { provide: DateAdapter, useClass: NativeDateAdapter },\n    ], imports: [[PlatformModule]] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(NativeDateModule, { imports: function () { return [PlatformModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(NativeDateModule, [{\n        type: NgModule,\n        args: [{\n                imports: [PlatformModule],\n                providers: [\n                    { provide: DateAdapter, useClass: NativeDateAdapter },\n                ]\n            }]\n    }], null, null); })();\nconst ɵ0$1 = MAT_NATIVE_DATE_FORMATS;\nclass MatNativeDateModule {\n}\nMatNativeDateModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatNativeDateModule });\nMatNativeDateModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatNativeDateModule_Factory(t) { return new (t || MatNativeDateModule)(); }, providers: [{ provide: MAT_DATE_FORMATS, useValue: ɵ0$1 }], imports: [[NativeDateModule]] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatNativeDateModule, { imports: [NativeDateModule] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatNativeDateModule, [{\n        type: NgModule,\n        args: [{\n                imports: [NativeDateModule],\n                providers: [{ provide: MAT_DATE_FORMATS, useValue: ɵ0$1 }]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/error/error-options.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Error state matcher that matches when a control is invalid and dirty.\n */\nclass ShowOnDirtyErrorStateMatcher {\n    /**\n     * @param {?} control\n     * @param {?} form\n     * @return {?}\n     */\n    isErrorState(control, form) {\n        return !!(control && control.invalid && (control.dirty || (form && form.submitted)));\n    }\n}\nShowOnDirtyErrorStateMatcher.ɵfac = function ShowOnDirtyErrorStateMatcher_Factory(t) { return new (t || ShowOnDirtyErrorStateMatcher)(); };\nShowOnDirtyErrorStateMatcher.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: ShowOnDirtyErrorStateMatcher, factory: ShowOnDirtyErrorStateMatcher.ɵfac });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ShowOnDirtyErrorStateMatcher, [{\n        type: Injectable\n    }], null, null); })();\n/**\n * Provider that defines how form controls behave with regards to displaying error messages.\n */\nclass ErrorStateMatcher {\n    /**\n     * @param {?} control\n     * @param {?} form\n     * @return {?}\n     */\n    isErrorState(control, form) {\n        return !!(control && control.invalid && (control.touched || (form && form.submitted)));\n    }\n}\nErrorStateMatcher.ɵfac = function ErrorStateMatcher_Factory(t) { return new (t || ErrorStateMatcher)(); };\n/** @nocollapse */ ErrorStateMatcher.ɵprov = ɵɵdefineInjectable({ factory: function ErrorStateMatcher_Factory() { return new ErrorStateMatcher(); }, token: ErrorStateMatcher, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ErrorStateMatcher, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/gestures/gesture-annotations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Stripped-down HammerJS annotations to be used within Material, which are necessary,\n * because HammerJS is an optional dependency. For the full annotations see:\n * https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/hammerjs/index.d.ts\n */\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @record\n */\nfunction HammerInput() { }\nif (false) {\n    /** @type {?} */\n    HammerInput.prototype.preventDefault;\n    /** @type {?} */\n    HammerInput.prototype.deltaX;\n    /** @type {?} */\n    HammerInput.prototype.deltaY;\n    /** @type {?} */\n    HammerInput.prototype.center;\n}\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @record\n */\nfunction HammerStatic() { }\nif (false) {\n    /** @type {?} */\n    HammerStatic.prototype.Pan;\n    /** @type {?} */\n    HammerStatic.prototype.Swipe;\n    /** @type {?} */\n    HammerStatic.prototype.Press;\n    /* Skipping unhandled member: new(element: HTMLElement | SVGElement, options?: any): HammerManager;*/\n}\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @record\n */\nfunction Recognizer() { }\nif (false) {\n    /* Skipping unhandled member: new(options?: any): Recognizer;*/\n    /**\n     * @param {?} otherRecognizer\n     * @return {?}\n     */\n    Recognizer.prototype.recognizeWith = function (otherRecognizer) { };\n}\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @record\n */\nfunction RecognizerStatic() { }\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @record\n */\nfunction HammerInstance() { }\nif (false) {\n    /**\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    HammerInstance.prototype.on = function (eventName, callback) { };\n    /**\n     * @param {?} eventName\n     * @param {?} callback\n     * @return {?}\n     */\n    HammerInstance.prototype.off = function (eventName, callback) { };\n}\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @record\n */\nfunction HammerManager() { }\nif (false) {\n    /**\n     * @param {?} recogniser\n     * @return {?}\n     */\n    HammerManager.prototype.add = function (recogniser) { };\n    /**\n     * @param {?} options\n     * @return {?}\n     */\n    HammerManager.prototype.set = function (options) { };\n    /**\n     * @param {?} event\n     * @param {?} data\n     * @return {?}\n     */\n    HammerManager.prototype.emit = function (event, data) { };\n    /**\n     * @param {?} events\n     * @param {?=} handler\n     * @return {?}\n     */\n    HammerManager.prototype.off = function (events, handler) { };\n    /**\n     * @param {?} events\n     * @param {?} handler\n     * @return {?}\n     */\n    HammerManager.prototype.on = function (events, handler) { };\n}\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @record\n */\nfunction HammerOptions() { }\nif (false) {\n    /** @type {?|undefined} */\n    HammerOptions.prototype.cssProps;\n    /** @type {?|undefined} */\n    HammerOptions.prototype.domEvents;\n    /** @type {?|undefined} */\n    HammerOptions.prototype.enable;\n    /** @type {?|undefined} */\n    HammerOptions.prototype.preset;\n    /** @type {?|undefined} */\n    HammerOptions.prototype.touchAction;\n    /** @type {?|undefined} */\n    HammerOptions.prototype.recognizers;\n    /** @type {?|undefined} */\n    HammerOptions.prototype.inputClass;\n    /** @type {?|undefined} */\n    HammerOptions.prototype.inputTarget;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/gestures/gesture-config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that can be used to provide options to the Hammerjs instance.\n * More info at http://hammerjs.github.io/api/.\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * @type {?}\n */\nconst MAT_HAMMER_OPTIONS = new InjectionToken('MAT_HAMMER_OPTIONS');\n/** @type {?} */\nconst ANGULAR_MATERIAL_SUPPORTED_HAMMER_GESTURES = [\n    'longpress',\n    'slide',\n    'slidestart',\n    'slideend',\n    'slideright',\n    'slideleft'\n];\nconst ɵ0$2 = /**\n * @return {?}\n */\n() => { }, ɵ1 = /**\n * @return {?}\n */\n() => { };\n/**\n * Fake HammerInstance that is used when a Hammer instance is requested when HammerJS has not\n * been loaded on the page.\n * @type {?}\n */\nconst noopHammerInstance = {\n    on: (ɵ0$2),\n    off: (ɵ1),\n};\n/**\n * Adjusts configuration of our gesture library, Hammer.\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n */\nclass GestureConfig extends HammerGestureConfig {\n    /**\n     * @param {?=} _hammerOptions\n     * @param {?=} _commonModule\n     */\n    constructor(_hammerOptions, _commonModule) {\n        super();\n        this._hammerOptions = _hammerOptions;\n        /**\n         * List of new event names to add to the gesture support list\n         */\n        this.events = ANGULAR_MATERIAL_SUPPORTED_HAMMER_GESTURES;\n    }\n    /**\n     * Builds Hammer instance manually to add custom recognizers that match the Material Design spec.\n     *\n     * Our gesture names come from the Material Design gestures spec:\n     * https://material.io/design/#gestures-touch-mechanics\n     *\n     * More information on default recognizers can be found in Hammer docs:\n     * http://hammerjs.github.io/recognizer-pan/\n     * http://hammerjs.github.io/recognizer-press/\n     *\n     * @param {?} element Element to which to assign the new HammerJS gestures.\n     * @return {?} Newly-created HammerJS instance.\n     */\n    buildHammer(element) {\n        /** @type {?} */\n        const hammer = typeof window !== 'undefined' ? ((/** @type {?} */ (window))).Hammer : null;\n        if (!hammer) {\n            // If HammerJS is not loaded here, return the noop HammerInstance. This is necessary to\n            // ensure that omitting HammerJS completely will not cause any errors while *also* supporting\n            // the lazy-loading of HammerJS via the HAMMER_LOADER token introduced in Angular 6.1.\n            // Because we can't depend on HAMMER_LOADER's existance until 7.0, we have to always set\n            // `this.events` to the set we support, instead of conditionally setting it to `[]` if\n            // `HAMMER_LOADER` is present (and then throwing an Error here if `window.Hammer` is\n            // undefined).\n            // @breaking-change 8.0.0\n            return noopHammerInstance;\n        }\n        /** @type {?} */\n        const mc = new hammer(element, this._hammerOptions || undefined);\n        // Default Hammer Recognizers.\n        /** @type {?} */\n        const pan = new hammer.Pan();\n        /** @type {?} */\n        const swipe = new hammer.Swipe();\n        /** @type {?} */\n        const press = new hammer.Press();\n        // Notice that a HammerJS recognizer can only depend on one other recognizer once.\n        // Otherwise the previous `recognizeWith` will be dropped.\n        // TODO: Confirm threshold numbers with Material Design UX Team\n        /** @type {?} */\n        const slide = this._createRecognizer(pan, { event: 'slide', threshold: 0 }, swipe);\n        /** @type {?} */\n        const longpress = this._createRecognizer(press, { event: 'longpress', time: 500 });\n        // Overwrite the default `pan` event to use the swipe event.\n        pan.recognizeWith(swipe);\n        // Since the slide event threshold is set to zero, the slide recognizer can fire and\n        // accidentally reset the longpress recognizer. In order to make sure that the two\n        // recognizers can run simultaneously but don't affect each other, we allow the slide\n        // recognizer to recognize while a longpress is being processed.\n        // See: https://github.com/hammerjs/hammer.js/blob/master/src/manager.js#L123-L124\n        longpress.recognizeWith(slide);\n        // Add customized gestures to Hammer manager\n        mc.add([swipe, press, pan, slide, longpress]);\n        return (/** @type {?} */ (mc));\n    }\n    /**\n     * Creates a new recognizer, without affecting the default recognizers of HammerJS\n     * @private\n     * @param {?} base\n     * @param {?} options\n     * @param {...?} inheritances\n     * @return {?}\n     */\n    _createRecognizer(base, options, ...inheritances) {\n        /** @type {?} */\n        let recognizer = new ((/** @type {?} */ (base.constructor)))(options);\n        inheritances.push(base);\n        inheritances.forEach((/**\n         * @param {?} item\n         * @return {?}\n         */\n        item => recognizer.recognizeWith(item)));\n        return recognizer;\n    }\n}\nGestureConfig.ɵfac = function GestureConfig_Factory(t) { return new (t || GestureConfig)(ɵngcc0.ɵɵinject(MAT_HAMMER_OPTIONS, 8), ɵngcc0.ɵɵinject(MatCommonModule, 8)); };\nGestureConfig.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: GestureConfig, factory: GestureConfig.ɵfac });\n/** @nocollapse */\nGestureConfig.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_HAMMER_OPTIONS,] }] },\n    { type: MatCommonModule, decorators: [{ type: Optional }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(GestureConfig, [{\n        type: Injectable\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_HAMMER_OPTIONS]\n            }] }, { type: MatCommonModule, decorators: [{\n                type: Optional\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * List of new event names to add to the gesture support list\n     * @type {?}\n     */\n    GestureConfig.prototype.events;\n    /**\n     * @type {?}\n     * @private\n     */\n    GestureConfig.prototype._hammerOptions;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/line/line.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Shared directive to count lines inside a text area, such as a list item.\n * Line elements can be extracted with a \\@ContentChildren(MatLine) query, then\n * counted by checking the query list's length.\n */\nclass MatLine {\n}\nMatLine.ɵfac = function MatLine_Factory(t) { return new (t || MatLine)(); };\nMatLine.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatLine, selectors: [[\"\", \"mat-line\", \"\"], [\"\", \"matLine\", \"\"]], hostAttrs: [1, \"mat-line\"] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatLine, [{\n        type: Directive,\n        args: [{\n                selector: '[mat-line], [matLine]',\n                host: { 'class': 'mat-line' }\n            }]\n    }], null, null); })();\n/**\n * Helper that takes a query list of lines and sets the correct class on the host.\n * \\@docs-private\n * @param {?} lines\n * @param {?} element\n * @param {?=} prefix\n * @return {?}\n */\nfunction setLines(lines, element, prefix = 'mat') {\n    // Note: doesn't need to unsubscribe, because `changes`\n    // gets completed by Angular when the view is destroyed.\n    lines.changes.pipe(startWith(lines)).subscribe((/**\n     * @param {?} __0\n     * @return {?}\n     */\n    ({ length }) => {\n        setClass(element, `${prefix}-2-line`, false);\n        setClass(element, `${prefix}-3-line`, false);\n        setClass(element, `${prefix}-multi-line`, false);\n        if (length === 2 || length === 3) {\n            setClass(element, `${prefix}-${length}-line`, true);\n        }\n        else if (length > 3) {\n            setClass(element, `${prefix}-multi-line`, true);\n        }\n    }));\n}\n/**\n * Adds or removes a class from an element.\n * @param {?} element\n * @param {?} className\n * @param {?} isAdd\n * @return {?}\n */\nfunction setClass(element, className, isAdd) {\n    /** @type {?} */\n    const classList = element.nativeElement.classList;\n    isAdd ? classList.add(className) : classList.remove(className);\n}\n/**\n * Helper that takes a query list of lines and sets the correct class on the host.\n * \\@docs-private\n * @deprecated Use `setLines` instead.\n * \\@breaking-change 8.0.0\n */\nclass MatLineSetter {\n    /**\n     * @param {?} lines\n     * @param {?} element\n     */\n    constructor(lines, element) {\n        setLines(lines, element);\n    }\n}\nclass MatLineModule {\n}\nMatLineModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatLineModule });\nMatLineModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatLineModule_Factory(t) { return new (t || MatLineModule)(); }, imports: [[MatCommonModule], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatLineModule, { declarations: [MatLine], imports: [MatCommonModule], exports: [MatLine, MatCommonModule] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatLineModule, [{\n        type: NgModule,\n        args: [{\n                imports: [MatCommonModule],\n                exports: [MatLine, MatCommonModule],\n                declarations: [MatLine]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/ripple/ripple-ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/** @enum {number} */\nconst RippleState = {\n    FADING_IN: 0, VISIBLE: 1, FADING_OUT: 2, HIDDEN: 3,\n};\n/**\n * Reference to a previously launched ripple element.\n */\nclass RippleRef {\n    /**\n     * @param {?} _renderer\n     * @param {?} element\n     * @param {?} config\n     */\n    constructor(_renderer, element, config) {\n        this._renderer = _renderer;\n        this.element = element;\n        this.config = config;\n        /**\n         * Current state of the ripple.\n         */\n        this.state = 3 /* HIDDEN */;\n    }\n    /**\n     * Fades out the ripple element.\n     * @return {?}\n     */\n    fadeOut() {\n        this._renderer.fadeOutRipple(this);\n    }\n}\nif (false) {\n    /**\n     * Current state of the ripple.\n     * @type {?}\n     */\n    RippleRef.prototype.state;\n    /**\n     * @type {?}\n     * @private\n     */\n    RippleRef.prototype._renderer;\n    /**\n     * Reference to the ripple HTML element.\n     * @type {?}\n     */\n    RippleRef.prototype.element;\n    /**\n     * Ripple configuration used for the ripple.\n     * @type {?}\n     */\n    RippleRef.prototype.config;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/ripple/ripple-renderer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Interface that describes the configuration for the animation of a ripple.\n * There are two animation phases with different durations for the ripples.\n * @record\n */\nfunction RippleAnimationConfig() { }\nif (false) {\n    /**\n     * Duration in milliseconds for the enter animation (expansion from point of contact).\n     * @type {?|undefined}\n     */\n    RippleAnimationConfig.prototype.enterDuration;\n    /**\n     * Duration in milliseconds for the exit animation (fade-out).\n     * @type {?|undefined}\n     */\n    RippleAnimationConfig.prototype.exitDuration;\n}\n/**\n * Interface that describes the target for launching ripples.\n * It defines the ripple configuration and disabled state for interaction ripples.\n * \\@docs-private\n * @record\n */\nfunction RippleTarget() { }\nif (false) {\n    /**\n     * Configuration for ripples that are launched on pointer down.\n     * @type {?}\n     */\n    RippleTarget.prototype.rippleConfig;\n    /**\n     * Whether ripples on pointer down should be disabled.\n     * @type {?}\n     */\n    RippleTarget.prototype.rippleDisabled;\n}\n/**\n * Default ripple animation configuration for ripples without an explicit\n * animation config specified.\n * @type {?}\n */\nconst defaultRippleAnimationConfig = {\n    enterDuration: 450,\n    exitDuration: 400\n};\n/**\n * Timeout for ignoring mouse events. Mouse events will be temporary ignored after touch\n * events to avoid synthetic mouse events.\n * @type {?}\n */\nconst ignoreMouseEventsTimeout = 800;\n/**\n * Options that apply to all the event listeners that are bound by the ripple renderer.\n * @type {?}\n */\nconst passiveEventOptions = normalizePassiveListenerOptions({ passive: true });\n/**\n * Events that signal that the pointer is down.\n * @type {?}\n */\nconst pointerDownEvents = ['mousedown', 'touchstart'];\n/**\n * Events that signal that the pointer is up.\n * @type {?}\n */\nconst pointerUpEvents = ['mouseup', 'mouseleave', 'touchend', 'touchcancel'];\n/**\n * Helper service that performs DOM manipulations. Not intended to be used outside this module.\n * The constructor takes a reference to the ripple directive's host element and a map of DOM\n * event handlers to be installed on the element that triggers ripple animations.\n * This will eventually become a custom renderer once Angular support exists.\n * \\@docs-private\n */\nclass RippleRenderer {\n    /**\n     * @param {?} _target\n     * @param {?} _ngZone\n     * @param {?} elementOrElementRef\n     * @param {?} platform\n     */\n    constructor(_target, _ngZone, elementOrElementRef, platform) {\n        this._target = _target;\n        this._ngZone = _ngZone;\n        /**\n         * Whether the pointer is currently down or not.\n         */\n        this._isPointerDown = false;\n        /**\n         * Set of currently active ripple references.\n         */\n        this._activeRipples = new Set();\n        /**\n         * Whether pointer-up event listeners have been registered.\n         */\n        this._pointerUpEventsRegistered = false;\n        // Only do anything if we're on the browser.\n        if (platform.isBrowser) {\n            this._containerElement = coerceElement(elementOrElementRef);\n        }\n    }\n    /**\n     * Fades in a ripple at the given coordinates.\n     * @param {?} x Coordinate within the element, along the X axis at which to start the ripple.\n     * @param {?} y Coordinate within the element, along the Y axis at which to start the ripple.\n     * @param {?=} config Extra ripple options.\n     * @return {?}\n     */\n    fadeInRipple(x, y, config = {}) {\n        /** @type {?} */\n        const containerRect = this._containerRect =\n            this._containerRect || this._containerElement.getBoundingClientRect();\n        /** @type {?} */\n        const animationConfig = Object.assign(Object.assign({}, defaultRippleAnimationConfig), config.animation);\n        if (config.centered) {\n            x = containerRect.left + containerRect.width / 2;\n            y = containerRect.top + containerRect.height / 2;\n        }\n        /** @type {?} */\n        const radius = config.radius || distanceToFurthestCorner(x, y, containerRect);\n        /** @type {?} */\n        const offsetX = x - containerRect.left;\n        /** @type {?} */\n        const offsetY = y - containerRect.top;\n        /** @type {?} */\n        const duration = animationConfig.enterDuration;\n        /** @type {?} */\n        const ripple = document.createElement('div');\n        ripple.classList.add('mat-ripple-element');\n        ripple.style.left = `${offsetX - radius}px`;\n        ripple.style.top = `${offsetY - radius}px`;\n        ripple.style.height = `${radius * 2}px`;\n        ripple.style.width = `${radius * 2}px`;\n        // If a custom color has been specified, set it as inline style. If no color is\n        // set, the default color will be applied through the ripple theme styles.\n        if (config.color != null) {\n            ripple.style.backgroundColor = config.color;\n        }\n        ripple.style.transitionDuration = `${duration}ms`;\n        this._containerElement.appendChild(ripple);\n        // By default the browser does not recalculate the styles of dynamically created\n        // ripple elements. This is critical because then the `scale` would not animate properly.\n        enforceStyleRecalculation(ripple);\n        ripple.style.transform = 'scale(1)';\n        // Exposed reference to the ripple that will be returned.\n        /** @type {?} */\n        const rippleRef = new RippleRef(this, ripple, config);\n        rippleRef.state = 0 /* FADING_IN */;\n        // Add the ripple reference to the list of all active ripples.\n        this._activeRipples.add(rippleRef);\n        if (!config.persistent) {\n            this._mostRecentTransientRipple = rippleRef;\n        }\n        // Wait for the ripple element to be completely faded in.\n        // Once it's faded in, the ripple can be hidden immediately if the mouse is released.\n        this._runTimeoutOutsideZone((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const isMostRecentTransientRipple = rippleRef === this._mostRecentTransientRipple;\n            rippleRef.state = 1 /* VISIBLE */;\n            // When the timer runs out while the user has kept their pointer down, we want to\n            // keep only the persistent ripples and the latest transient ripple. We do this,\n            // because we don't want stacked transient ripples to appear after their enter\n            // animation has finished.\n            if (!config.persistent && (!isMostRecentTransientRipple || !this._isPointerDown)) {\n                rippleRef.fadeOut();\n            }\n        }), duration);\n        return rippleRef;\n    }\n    /**\n     * Fades out a ripple reference.\n     * @param {?} rippleRef\n     * @return {?}\n     */\n    fadeOutRipple(rippleRef) {\n        /** @type {?} */\n        const wasActive = this._activeRipples.delete(rippleRef);\n        if (rippleRef === this._mostRecentTransientRipple) {\n            this._mostRecentTransientRipple = null;\n        }\n        // Clear out the cached bounding rect if we have no more ripples.\n        if (!this._activeRipples.size) {\n            this._containerRect = null;\n        }\n        // For ripples that are not active anymore, don't re-run the fade-out animation.\n        if (!wasActive) {\n            return;\n        }\n        /** @type {?} */\n        const rippleEl = rippleRef.element;\n        /** @type {?} */\n        const animationConfig = Object.assign(Object.assign({}, defaultRippleAnimationConfig), rippleRef.config.animation);\n        rippleEl.style.transitionDuration = `${animationConfig.exitDuration}ms`;\n        rippleEl.style.opacity = '0';\n        rippleRef.state = 2 /* FADING_OUT */;\n        // Once the ripple faded out, the ripple can be safely removed from the DOM.\n        this._runTimeoutOutsideZone((/**\n         * @return {?}\n         */\n        () => {\n            rippleRef.state = 3 /* HIDDEN */;\n            (/** @type {?} */ (rippleEl.parentNode)).removeChild(rippleEl);\n        }), animationConfig.exitDuration);\n    }\n    /**\n     * Fades out all currently active ripples.\n     * @return {?}\n     */\n    fadeOutAll() {\n        this._activeRipples.forEach((/**\n         * @param {?} ripple\n         * @return {?}\n         */\n        ripple => ripple.fadeOut()));\n    }\n    /**\n     * Sets up the trigger event listeners\n     * @param {?} elementOrElementRef\n     * @return {?}\n     */\n    setupTriggerEvents(elementOrElementRef) {\n        /** @type {?} */\n        const element = coerceElement(elementOrElementRef);\n        if (!element || element === this._triggerElement) {\n            return;\n        }\n        // Remove all previously registered event listeners from the trigger element.\n        this._removeTriggerEvents();\n        this._triggerElement = element;\n        this._registerEvents(pointerDownEvents);\n    }\n    /**\n     * Handles all registered events.\n     * \\@docs-private\n     * @param {?} event\n     * @return {?}\n     */\n    handleEvent(event) {\n        if (event.type === 'mousedown') {\n            this._onMousedown((/** @type {?} */ (event)));\n        }\n        else if (event.type === 'touchstart') {\n            this._onTouchStart((/** @type {?} */ (event)));\n        }\n        else {\n            this._onPointerUp();\n        }\n        // If pointer-up events haven't been registered yet, do so now.\n        // We do this on-demand in order to reduce the total number of event listeners\n        // registered by the ripples, which speeds up the rendering time for large UIs.\n        if (!this._pointerUpEventsRegistered) {\n            this._registerEvents(pointerUpEvents);\n            this._pointerUpEventsRegistered = true;\n        }\n    }\n    /**\n     * Function being called whenever the trigger is being pressed using mouse.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _onMousedown(event) {\n        // Screen readers will fire fake mouse events for space/enter. Skip launching a\n        // ripple in this case for consistency with the non-screen-reader experience.\n        /** @type {?} */\n        const isFakeMousedown = isFakeMousedownFromScreenReader(event);\n        /** @type {?} */\n        const isSyntheticEvent = this._lastTouchStartEvent &&\n            Date.now() < this._lastTouchStartEvent + ignoreMouseEventsTimeout;\n        if (!this._target.rippleDisabled && !isFakeMousedown && !isSyntheticEvent) {\n            this._isPointerDown = true;\n            this.fadeInRipple(event.clientX, event.clientY, this._target.rippleConfig);\n        }\n    }\n    /**\n     * Function being called whenever the trigger is being pressed using touch.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _onTouchStart(event) {\n        if (!this._target.rippleDisabled) {\n            // Some browsers fire mouse events after a `touchstart` event. Those synthetic mouse\n            // events will launch a second ripple if we don't ignore mouse events for a specific\n            // time after a touchstart event.\n            this._lastTouchStartEvent = Date.now();\n            this._isPointerDown = true;\n            // Use `changedTouches` so we skip any touches where the user put\n            // their finger down, but used another finger to tap the element again.\n            /** @type {?} */\n            const touches = event.changedTouches;\n            for (let i = 0; i < touches.length; i++) {\n                this.fadeInRipple(touches[i].clientX, touches[i].clientY, this._target.rippleConfig);\n            }\n        }\n    }\n    /**\n     * Function being called whenever the trigger is being released.\n     * @private\n     * @return {?}\n     */\n    _onPointerUp() {\n        if (!this._isPointerDown) {\n            return;\n        }\n        this._isPointerDown = false;\n        // Fade-out all ripples that are visible and not persistent.\n        this._activeRipples.forEach((/**\n         * @param {?} ripple\n         * @return {?}\n         */\n        ripple => {\n            // By default, only ripples that are completely visible will fade out on pointer release.\n            // If the `terminateOnPointerUp` option is set, ripples that still fade in will also fade out.\n            /** @type {?} */\n            const isVisible = ripple.state === 1 /* VISIBLE */ ||\n                ripple.config.terminateOnPointerUp && ripple.state === 0 /* FADING_IN */;\n            if (!ripple.config.persistent && isVisible) {\n                ripple.fadeOut();\n            }\n        }));\n    }\n    /**\n     * Runs a timeout outside of the Angular zone to avoid triggering the change detection.\n     * @private\n     * @param {?} fn\n     * @param {?=} delay\n     * @return {?}\n     */\n    _runTimeoutOutsideZone(fn, delay = 0) {\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => setTimeout(fn, delay)));\n    }\n    /**\n     * Registers event listeners for a given list of events.\n     * @private\n     * @param {?} eventTypes\n     * @return {?}\n     */\n    _registerEvents(eventTypes) {\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            eventTypes.forEach((/**\n             * @param {?} type\n             * @return {?}\n             */\n            (type) => {\n                (/** @type {?} */ (this._triggerElement)).addEventListener(type, this, passiveEventOptions);\n            }));\n        }));\n    }\n    /**\n     * Removes previously registered event listeners from the trigger element.\n     * @return {?}\n     */\n    _removeTriggerEvents() {\n        if (this._triggerElement) {\n            pointerDownEvents.forEach((/**\n             * @param {?} type\n             * @return {?}\n             */\n            (type) => {\n                (/** @type {?} */ (this._triggerElement)).removeEventListener(type, this, passiveEventOptions);\n            }));\n            if (this._pointerUpEventsRegistered) {\n                pointerUpEvents.forEach((/**\n                 * @param {?} type\n                 * @return {?}\n                 */\n                (type) => {\n                    (/** @type {?} */ (this._triggerElement)).removeEventListener(type, this, passiveEventOptions);\n                }));\n            }\n        }\n    }\n}\nif (false) {\n    /**\n     * Element where the ripples are being added to.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._containerElement;\n    /**\n     * Element which triggers the ripple elements on mouse events.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._triggerElement;\n    /**\n     * Whether the pointer is currently down or not.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._isPointerDown;\n    /**\n     * Set of currently active ripple references.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._activeRipples;\n    /**\n     * Latest non-persistent ripple that was triggered.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._mostRecentTransientRipple;\n    /**\n     * Time in milliseconds when the last touchstart event happened.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._lastTouchStartEvent;\n    /**\n     * Whether pointer-up event listeners have been registered.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._pointerUpEventsRegistered;\n    /**\n     * Cached dimensions of the ripple container. Set when the first\n     * ripple is shown and cleared once no more ripples are visible.\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._containerRect;\n    /**\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._target;\n    /**\n     * @type {?}\n     * @private\n     */\n    RippleRenderer.prototype._ngZone;\n}\n/**\n * Enforces a style recalculation of a DOM element by computing its styles.\n * @param {?} element\n * @return {?}\n */\nfunction enforceStyleRecalculation(element) {\n    // Enforce a style recalculation by calling `getComputedStyle` and accessing any property.\n    // Calling `getPropertyValue` is important to let optimizers know that this is not a noop.\n    // See: https://gist.github.com/paulirish/5d52fb081b3570c81e3a\n    window.getComputedStyle(element).getPropertyValue('opacity');\n}\n/**\n * Returns the distance from the point (x, y) to the furthest corner of a rectangle.\n * @param {?} x\n * @param {?} y\n * @param {?} rect\n * @return {?}\n */\nfunction distanceToFurthestCorner(x, y, rect) {\n    /** @type {?} */\n    const distX = Math.max(Math.abs(x - rect.left), Math.abs(x - rect.right));\n    /** @type {?} */\n    const distY = Math.max(Math.abs(y - rect.top), Math.abs(y - rect.bottom));\n    return Math.sqrt(distX * distX + distY * distY);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/ripple/ripple.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Configurable options for `matRipple`.\n * @record\n */\nfunction RippleGlobalOptions() { }\nif (false) {\n    /**\n     * Whether ripples should be disabled. Ripples can be still launched manually by using\n     * the `launch()` method. Therefore focus indicators will still show up.\n     * @type {?|undefined}\n     */\n    RippleGlobalOptions.prototype.disabled;\n    /**\n     * Configuration for the animation duration of the ripples. There are two phases with different\n     * durations for the ripples. The animation durations will be overwritten if the\n     * `NoopAnimationsModule` is being used.\n     * @type {?|undefined}\n     */\n    RippleGlobalOptions.prototype.animation;\n    /**\n     * Whether ripples should start fading out immediately after the mouse or touch is released. By\n     * default, ripples will wait for the enter animation to complete and for mouse or touch release.\n     * @type {?|undefined}\n     */\n    RippleGlobalOptions.prototype.terminateOnPointerUp;\n}\n/**\n * Injection token that can be used to specify the global ripple options.\n * @type {?}\n */\nconst MAT_RIPPLE_GLOBAL_OPTIONS = new InjectionToken('mat-ripple-global-options');\nclass MatRipple {\n    /**\n     * @param {?} _elementRef\n     * @param {?} ngZone\n     * @param {?} platform\n     * @param {?=} globalOptions\n     * @param {?=} _animationMode\n     */\n    constructor(_elementRef, ngZone, platform, globalOptions, _animationMode) {\n        this._elementRef = _elementRef;\n        this._animationMode = _animationMode;\n        /**\n         * If set, the radius in pixels of foreground ripples when fully expanded. If unset, the radius\n         * will be the distance from the center of the ripple to the furthest corner of the host element's\n         * bounding rectangle.\n         */\n        this.radius = 0;\n        this._disabled = false;\n        /**\n         * Whether ripple directive is initialized and the input bindings are set.\n         */\n        this._isInitialized = false;\n        this._globalOptions = globalOptions || {};\n        this._rippleRenderer = new RippleRenderer(this, ngZone, _elementRef, platform);\n    }\n    /**\n     * Whether click events will not trigger the ripple. Ripples can be still launched manually\n     * by using the `launch()` method.\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = value;\n        this._setupTriggerEventsIfEnabled();\n    }\n    /**\n     * The element that triggers the ripple when click events are received.\n     * Defaults to the directive's host element.\n     * @return {?}\n     */\n    get trigger() { return this._trigger || this._elementRef.nativeElement; }\n    /**\n     * @param {?} trigger\n     * @return {?}\n     */\n    set trigger(trigger) {\n        this._trigger = trigger;\n        this._setupTriggerEventsIfEnabled();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this._isInitialized = true;\n        this._setupTriggerEventsIfEnabled();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._rippleRenderer._removeTriggerEvents();\n    }\n    /**\n     * Fades out all currently showing ripple elements.\n     * @return {?}\n     */\n    fadeOutAll() {\n        this._rippleRenderer.fadeOutAll();\n    }\n    /**\n     * Ripple configuration from the directive's input values.\n     * \\@docs-private Implemented as part of RippleTarget\n     * @return {?}\n     */\n    get rippleConfig() {\n        return {\n            centered: this.centered,\n            radius: this.radius,\n            color: this.color,\n            animation: Object.assign(Object.assign(Object.assign({}, this._globalOptions.animation), (this._animationMode === 'NoopAnimations' ? { enterDuration: 0, exitDuration: 0 } : {})), this.animation),\n            terminateOnPointerUp: this._globalOptions.terminateOnPointerUp,\n        };\n    }\n    /**\n     * Whether ripples on pointer-down are disabled or not.\n     * \\@docs-private Implemented as part of RippleTarget\n     * @return {?}\n     */\n    get rippleDisabled() {\n        return this.disabled || !!this._globalOptions.disabled;\n    }\n    /**\n     * Sets up the trigger event listeners if ripples are enabled.\n     * @private\n     * @return {?}\n     */\n    _setupTriggerEventsIfEnabled() {\n        if (!this.disabled && this._isInitialized) {\n            this._rippleRenderer.setupTriggerEvents(this.trigger);\n        }\n    }\n    /**\n     * Launches a manual ripple at the specified coordinated or just by the ripple config.\n     * @param {?} configOrX\n     * @param {?=} y\n     * @param {?=} config\n     * @return {?}\n     */\n    launch(configOrX, y = 0, config) {\n        if (typeof configOrX === 'number') {\n            return this._rippleRenderer.fadeInRipple(configOrX, y, Object.assign(Object.assign({}, this.rippleConfig), config));\n        }\n        else {\n            return this._rippleRenderer.fadeInRipple(0, 0, Object.assign(Object.assign({}, this.rippleConfig), configOrX));\n        }\n    }\n}\nMatRipple.ɵfac = function MatRipple_Factory(t) { return new (t || MatRipple)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Platform), ɵngcc0.ɵɵdirectiveInject(MAT_RIPPLE_GLOBAL_OPTIONS, 8), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8)); };\nMatRipple.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatRipple, selectors: [[\"\", \"mat-ripple\", \"\"], [\"\", \"matRipple\", \"\"]], hostAttrs: [1, \"mat-ripple\"], hostVars: 2, hostBindings: function MatRipple_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"mat-ripple-unbounded\", ctx.unbounded);\n    } }, inputs: { radius: [\"matRippleRadius\", \"radius\"], disabled: [\"matRippleDisabled\", \"disabled\"], trigger: [\"matRippleTrigger\", \"trigger\"], color: [\"matRippleColor\", \"color\"], unbounded: [\"matRippleUnbounded\", \"unbounded\"], centered: [\"matRippleCentered\", \"centered\"], animation: [\"matRippleAnimation\", \"animation\"] }, exportAs: [\"matRipple\"] });\n/** @nocollapse */\nMatRipple.ctorParameters = () => [\n    { type: ElementRef },\n    { type: NgZone },\n    { type: Platform },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_RIPPLE_GLOBAL_OPTIONS,] }] },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }\n];\nMatRipple.propDecorators = {\n    color: [{ type: Input, args: ['matRippleColor',] }],\n    unbounded: [{ type: Input, args: ['matRippleUnbounded',] }],\n    centered: [{ type: Input, args: ['matRippleCentered',] }],\n    radius: [{ type: Input, args: ['matRippleRadius',] }],\n    animation: [{ type: Input, args: ['matRippleAnimation',] }],\n    disabled: [{ type: Input, args: ['matRippleDisabled',] }],\n    trigger: [{ type: Input, args: ['matRippleTrigger',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatRipple, [{\n        type: Directive,\n        args: [{\n                selector: '[mat-ripple], [matRipple]',\n                exportAs: 'matRipple',\n                host: {\n                    'class': 'mat-ripple',\n                    '[class.mat-ripple-unbounded]': 'unbounded'\n                }\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.NgZone }, { type: ɵngcc2.Platform }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_RIPPLE_GLOBAL_OPTIONS]\n            }] }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }]; }, { radius: [{\n            type: Input,\n            args: ['matRippleRadius']\n        }], disabled: [{\n            type: Input,\n            args: ['matRippleDisabled']\n        }], trigger: [{\n            type: Input,\n            args: ['matRippleTrigger']\n        }], color: [{\n            type: Input,\n            args: ['matRippleColor']\n        }], unbounded: [{\n            type: Input,\n            args: ['matRippleUnbounded']\n        }], centered: [{\n            type: Input,\n            args: ['matRippleCentered']\n        }], animation: [{\n            type: Input,\n            args: ['matRippleAnimation']\n        }] }); })();\nif (false) {\n    /**\n     * Custom color for all ripples.\n     * @type {?}\n     */\n    MatRipple.prototype.color;\n    /**\n     * Whether the ripples should be visible outside the component's bounds.\n     * @type {?}\n     */\n    MatRipple.prototype.unbounded;\n    /**\n     * Whether the ripple always originates from the center of the host element's bounds, rather\n     * than originating from the location of the click event.\n     * @type {?}\n     */\n    MatRipple.prototype.centered;\n    /**\n     * If set, the radius in pixels of foreground ripples when fully expanded. If unset, the radius\n     * will be the distance from the center of the ripple to the furthest corner of the host element's\n     * bounding rectangle.\n     * @type {?}\n     */\n    MatRipple.prototype.radius;\n    /**\n     * Configuration for the ripple animation. Allows modifying the enter and exit animation\n     * duration of the ripples. The animation durations will be overwritten if the\n     * `NoopAnimationsModule` is being used.\n     * @type {?}\n     */\n    MatRipple.prototype.animation;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatRipple.prototype._disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatRipple.prototype._trigger;\n    /**\n     * Renderer for the ripple DOM manipulations.\n     * @type {?}\n     * @private\n     */\n    MatRipple.prototype._rippleRenderer;\n    /**\n     * Options that are set globally for all ripples.\n     * @type {?}\n     * @private\n     */\n    MatRipple.prototype._globalOptions;\n    /**\n     * Whether ripple directive is initialized and the input bindings are set.\n     * @type {?}\n     * @private\n     */\n    MatRipple.prototype._isInitialized;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatRipple.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatRipple.prototype._animationMode;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/ripple/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatRippleModule {\n}\nMatRippleModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatRippleModule });\nMatRippleModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatRippleModule_Factory(t) { return new (t || MatRippleModule)(); }, imports: [[MatCommonModule, PlatformModule], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatRippleModule, { declarations: function () { return [MatRipple]; }, imports: function () { return [MatCommonModule, PlatformModule]; }, exports: function () { return [MatRipple, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatRippleModule, [{\n        type: NgModule,\n        args: [{\n                imports: [MatCommonModule, PlatformModule],\n                exports: [MatRipple, MatCommonModule],\n                declarations: [MatRipple]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/selection/pseudo-checkbox/pseudo-checkbox.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Component that shows a simplified checkbox without including any kind of \"real\" checkbox.\n * Meant to be used when the checkbox is purely decorative and a large number of them will be\n * included, such as for the options in a multi-select. Uses no SVGs or complex animations.\n * Note that theming is meant to be handled by the parent element, e.g.\n * `mat-primary .mat-pseudo-checkbox`.\n *\n * Note that this component will be completely invisible to screen-reader users. This is *not*\n * interchangeable with `<mat-checkbox>` and should *not* be used if the user would directly\n * interact with the checkbox. The pseudo-checkbox should only be used as an implementation detail\n * of more complex components that appropriately handle selected / checked state.\n * \\@docs-private\n */\nclass MatPseudoCheckbox {\n    /**\n     * @param {?=} _animationMode\n     */\n    constructor(_animationMode) {\n        this._animationMode = _animationMode;\n        /**\n         * Display state of the checkbox.\n         */\n        this.state = 'unchecked';\n        /**\n         * Whether the checkbox is disabled.\n         */\n        this.disabled = false;\n    }\n}\nMatPseudoCheckbox.ɵfac = function MatPseudoCheckbox_Factory(t) { return new (t || MatPseudoCheckbox)(ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8)); };\nMatPseudoCheckbox.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatPseudoCheckbox, selectors: [[\"mat-pseudo-checkbox\"]], hostAttrs: [1, \"mat-pseudo-checkbox\"], hostVars: 8, hostBindings: function MatPseudoCheckbox_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"mat-pseudo-checkbox-indeterminate\", ctx.state === \"indeterminate\")(\"mat-pseudo-checkbox-checked\", ctx.state === \"checked\")(\"mat-pseudo-checkbox-disabled\", ctx.disabled)(\"_mat-animation-noopable\", ctx._animationMode === \"NoopAnimations\");\n    } }, inputs: { state: \"state\", disabled: \"disabled\" }, decls: 0, vars: 0, template: function MatPseudoCheckbox_Template(rf, ctx) { }, styles: [\".mat-pseudo-checkbox{width:16px;height:16px;border:2px solid;border-radius:2px;cursor:pointer;display:inline-block;vertical-align:middle;box-sizing:border-box;position:relative;flex-shrink:0;transition:border-color 90ms cubic-bezier(0, 0, 0.2, 0.1),background-color 90ms cubic-bezier(0, 0, 0.2, 0.1)}.mat-pseudo-checkbox::after{position:absolute;opacity:0;content:\\\"\\\";border-bottom:2px solid currentColor;transition:opacity 90ms cubic-bezier(0, 0, 0.2, 0.1)}.mat-pseudo-checkbox.mat-pseudo-checkbox-checked,.mat-pseudo-checkbox.mat-pseudo-checkbox-indeterminate{border-color:transparent}._mat-animation-noopable.mat-pseudo-checkbox{transition:none;animation:none}._mat-animation-noopable.mat-pseudo-checkbox::after{transition:none}.mat-pseudo-checkbox-disabled{cursor:default}.mat-pseudo-checkbox-indeterminate::after{top:5px;left:1px;width:10px;opacity:1;border-radius:2px}.mat-pseudo-checkbox-checked::after{top:2.4px;left:1px;width:8px;height:3px;border-left:2px solid currentColor;transform:rotate(-45deg);opacity:1;box-sizing:content-box}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatPseudoCheckbox.ctorParameters = () => [\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }\n];\nMatPseudoCheckbox.propDecorators = {\n    state: [{ type: Input }],\n    disabled: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatPseudoCheckbox, [{\n        type: Component,\n        args: [{\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                selector: 'mat-pseudo-checkbox',\n                template: '',\n                host: {\n                    'class': 'mat-pseudo-checkbox',\n                    '[class.mat-pseudo-checkbox-indeterminate]': 'state === \"indeterminate\"',\n                    '[class.mat-pseudo-checkbox-checked]': 'state === \"checked\"',\n                    '[class.mat-pseudo-checkbox-disabled]': 'disabled',\n                    '[class._mat-animation-noopable]': '_animationMode === \"NoopAnimations\"'\n                },\n                styles: [\".mat-pseudo-checkbox{width:16px;height:16px;border:2px solid;border-radius:2px;cursor:pointer;display:inline-block;vertical-align:middle;box-sizing:border-box;position:relative;flex-shrink:0;transition:border-color 90ms cubic-bezier(0, 0, 0.2, 0.1),background-color 90ms cubic-bezier(0, 0, 0.2, 0.1)}.mat-pseudo-checkbox::after{position:absolute;opacity:0;content:\\\"\\\";border-bottom:2px solid currentColor;transition:opacity 90ms cubic-bezier(0, 0, 0.2, 0.1)}.mat-pseudo-checkbox.mat-pseudo-checkbox-checked,.mat-pseudo-checkbox.mat-pseudo-checkbox-indeterminate{border-color:transparent}._mat-animation-noopable.mat-pseudo-checkbox{transition:none;animation:none}._mat-animation-noopable.mat-pseudo-checkbox::after{transition:none}.mat-pseudo-checkbox-disabled{cursor:default}.mat-pseudo-checkbox-indeterminate::after{top:5px;left:1px;width:10px;opacity:1;border-radius:2px}.mat-pseudo-checkbox-checked::after{top:2.4px;left:1px;width:8px;height:3px;border-left:2px solid currentColor;transform:rotate(-45deg);opacity:1;box-sizing:content-box}\\n\"]\n            }]\n    }], function () { return [{ type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }]; }, { state: [{\n            type: Input\n        }], disabled: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * Display state of the checkbox.\n     * @type {?}\n     */\n    MatPseudoCheckbox.prototype.state;\n    /**\n     * Whether the checkbox is disabled.\n     * @type {?}\n     */\n    MatPseudoCheckbox.prototype.disabled;\n    /** @type {?} */\n    MatPseudoCheckbox.prototype._animationMode;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/selection/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatPseudoCheckboxModule {\n}\nMatPseudoCheckboxModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatPseudoCheckboxModule });\nMatPseudoCheckboxModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatPseudoCheckboxModule_Factory(t) { return new (t || MatPseudoCheckboxModule)(); } });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatPseudoCheckboxModule, { declarations: [MatPseudoCheckbox], exports: [MatPseudoCheckbox] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatPseudoCheckboxModule, [{\n        type: NgModule,\n        args: [{\n                exports: [MatPseudoCheckbox],\n                declarations: [MatPseudoCheckbox]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/option/optgroup.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Boilerplate for applying mixins to MatOptgroup.\n/**\n * \\@docs-private\n */\nclass MatOptgroupBase {\n}\n/** @type {?} */\nconst _MatOptgroupMixinBase = mixinDisabled(MatOptgroupBase);\n// Counter for unique group ids.\n/** @type {?} */\nlet _uniqueOptgroupIdCounter = 0;\n/**\n * Component that is used to group instances of `mat-option`.\n */\nclass MatOptgroup extends _MatOptgroupMixinBase {\n    constructor() {\n        super(...arguments);\n        /**\n         * Unique id for the underlying label.\n         */\n        this._labelId = `mat-optgroup-label-${_uniqueOptgroupIdCounter++}`;\n    }\n}\nMatOptgroup.ɵfac = function MatOptgroup_Factory(t) { return ɵMatOptgroup_BaseFactory(t || MatOptgroup); };\nMatOptgroup.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatOptgroup, selectors: [[\"mat-optgroup\"]], hostAttrs: [\"role\", \"group\", 1, \"mat-optgroup\"], hostVars: 4, hostBindings: function MatOptgroup_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"aria-disabled\", ctx.disabled.toString())(\"aria-labelledby\", ctx._labelId);\n        ɵngcc0.ɵɵclassProp(\"mat-optgroup-disabled\", ctx.disabled);\n    } }, inputs: { disabled: \"disabled\", label: \"label\" }, exportAs: [\"matOptgroup\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c1, decls: 4, vars: 2, consts: [[1, \"mat-optgroup-label\", 3, \"id\"]], template: function MatOptgroup_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef(_c0);\n        ɵngcc0.ɵɵelementStart(0, \"label\", 0);\n        ɵngcc0.ɵɵtext(1);\n        ɵngcc0.ɵɵprojection(2);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵprojection(3, 1);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵproperty(\"id\", ctx._labelId);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵtextInterpolate1(\"\", ctx.label, \" \");\n    } }, styles: [\".mat-optgroup-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-optgroup-label[disabled]{cursor:default}[dir=rtl] .mat-optgroup-label{text-align:right}.mat-optgroup-label .mat-icon{margin-right:16px;vertical-align:middle}.mat-optgroup-label .mat-icon svg{vertical-align:top}[dir=rtl] .mat-optgroup-label .mat-icon{margin-left:16px;margin-right:0}\\n\"], encapsulation: 2, changeDetection: 0 });\nMatOptgroup.propDecorators = {\n    label: [{ type: Input }]\n};\nconst ɵMatOptgroup_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(MatOptgroup);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatOptgroup, [{\n        type: Component,\n        args: [{\n                selector: 'mat-optgroup',\n                exportAs: 'matOptgroup',\n                template: \"<label class=\\\"mat-optgroup-label\\\" [id]=\\\"_labelId\\\">{{ label }} <ng-content></ng-content></label>\\n<ng-content select=\\\"mat-option, ng-container\\\"></ng-content>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                inputs: ['disabled'],\n                host: {\n                    'class': 'mat-optgroup',\n                    'role': 'group',\n                    '[class.mat-optgroup-disabled]': 'disabled',\n                    '[attr.aria-disabled]': 'disabled.toString()',\n                    '[attr.aria-labelledby]': '_labelId'\n                },\n                styles: [\".mat-optgroup-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-optgroup-label[disabled]{cursor:default}[dir=rtl] .mat-optgroup-label{text-align:right}.mat-optgroup-label .mat-icon{margin-right:16px;vertical-align:middle}.mat-optgroup-label .mat-icon svg{vertical-align:top}[dir=rtl] .mat-optgroup-label .mat-icon{margin-left:16px;margin-right:0}\\n\"]\n            }]\n    }], null, { label: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatOptgroup.ngAcceptInputType_disabled;\n    /**\n     * Label for the option group.\n     * @type {?}\n     */\n    MatOptgroup.prototype.label;\n    /**\n     * Unique id for the underlying label.\n     * @type {?}\n     */\n    MatOptgroup.prototype._labelId;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/option/option.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Option IDs need to be unique across components, so this counter exists outside of\n * the component definition.\n * @type {?}\n */\nlet _uniqueIdCounter = 0;\n/**\n * Event object emitted by MatOption when selected or deselected.\n */\nclass MatOptionSelectionChange {\n    /**\n     * @param {?} source\n     * @param {?=} isUserInput\n     */\n    constructor(source, isUserInput = false) {\n        this.source = source;\n        this.isUserInput = isUserInput;\n    }\n}\nif (false) {\n    /**\n     * Reference to the option that emitted the event.\n     * @type {?}\n     */\n    MatOptionSelectionChange.prototype.source;\n    /**\n     * Whether the change in the option's value was a result of a user action.\n     * @type {?}\n     */\n    MatOptionSelectionChange.prototype.isUserInput;\n}\n/**\n * Describes a parent component that manages a list of options.\n * Contains properties that the options can inherit.\n * \\@docs-private\n * @record\n */\nfunction MatOptionParentComponent() { }\nif (false) {\n    /** @type {?|undefined} */\n    MatOptionParentComponent.prototype.disableRipple;\n    /** @type {?|undefined} */\n    MatOptionParentComponent.prototype.multiple;\n}\n/**\n * Injection token used to provide the parent component to options.\n * @type {?}\n */\nconst MAT_OPTION_PARENT_COMPONENT = new InjectionToken('MAT_OPTION_PARENT_COMPONENT');\n/**\n * Single option inside of a `<mat-select>` element.\n */\nclass MatOption {\n    /**\n     * @param {?} _element\n     * @param {?} _changeDetectorRef\n     * @param {?} _parent\n     * @param {?} group\n     */\n    constructor(_element, _changeDetectorRef, _parent, group) {\n        this._element = _element;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._parent = _parent;\n        this.group = group;\n        this._selected = false;\n        this._active = false;\n        this._disabled = false;\n        this._mostRecentViewValue = '';\n        /**\n         * The unique ID of the option.\n         */\n        this.id = `mat-option-${_uniqueIdCounter++}`;\n        /**\n         * Event emitted when the option is selected or deselected.\n         */\n        // tslint:disable-next-line:no-output-on-prefix\n        this.onSelectionChange = new EventEmitter();\n        /**\n         * Emits when the state of the option changes and any parents have to be notified.\n         */\n        this._stateChanges = new Subject();\n    }\n    /**\n     * Whether the wrapping component is in multiple selection mode.\n     * @return {?}\n     */\n    get multiple() { return this._parent && this._parent.multiple; }\n    /**\n     * Whether or not the option is currently selected.\n     * @return {?}\n     */\n    get selected() { return this._selected; }\n    /**\n     * Whether the option is disabled.\n     * @return {?}\n     */\n    get disabled() { return (this.group && this.group.disabled) || this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) { this._disabled = coerceBooleanProperty(value); }\n    /**\n     * Whether ripples for the option are disabled.\n     * @return {?}\n     */\n    get disableRipple() { return this._parent && this._parent.disableRipple; }\n    /**\n     * Whether or not the option is currently active and ready to be selected.\n     * An active option displays styles as if it is focused, but the\n     * focus is actually retained somewhere else. This comes in handy\n     * for components like autocomplete where focus must remain on the input.\n     * @return {?}\n     */\n    get active() {\n        return this._active;\n    }\n    /**\n     * The displayed value of the option. It is necessary to show the selected option in the\n     * select's trigger.\n     * @return {?}\n     */\n    get viewValue() {\n        // TODO(kara): Add input property alternative for node envs.\n        return (this._getHostElement().textContent || '').trim();\n    }\n    /**\n     * Selects the option.\n     * @return {?}\n     */\n    select() {\n        if (!this._selected) {\n            this._selected = true;\n            this._changeDetectorRef.markForCheck();\n            this._emitSelectionChangeEvent();\n        }\n    }\n    /**\n     * Deselects the option.\n     * @return {?}\n     */\n    deselect() {\n        if (this._selected) {\n            this._selected = false;\n            this._changeDetectorRef.markForCheck();\n            this._emitSelectionChangeEvent();\n        }\n    }\n    /**\n     * Sets focus onto this option.\n     * @param {?=} _origin\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(_origin, options) {\n        // Note that we aren't using `_origin`, but we need to keep it because some internal consumers\n        // use `MatOption` in a `FocusKeyManager` and we need it to match `FocusableOption`.\n        /** @type {?} */\n        const element = this._getHostElement();\n        if (typeof element.focus === 'function') {\n            element.focus(options);\n        }\n    }\n    /**\n     * This method sets display styles on the option to make it appear\n     * active. This is used by the ActiveDescendantKeyManager so key\n     * events will display the proper options as active on arrow key events.\n     * @return {?}\n     */\n    setActiveStyles() {\n        if (!this._active) {\n            this._active = true;\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * This method removes display styles on the option that made it appear\n     * active. This is used by the ActiveDescendantKeyManager so key\n     * events will display the proper options as active on arrow key events.\n     * @return {?}\n     */\n    setInactiveStyles() {\n        if (this._active) {\n            this._active = false;\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * Gets the label to be used when determining whether the option should be focused.\n     * @return {?}\n     */\n    getLabel() {\n        return this.viewValue;\n    }\n    /**\n     * Ensures the option is selected when activated from the keyboard.\n     * @param {?} event\n     * @return {?}\n     */\n    _handleKeydown(event) {\n        if ((event.keyCode === ENTER || event.keyCode === SPACE) && !hasModifierKey(event)) {\n            this._selectViaInteraction();\n            // Prevent the page from scrolling down and form submits.\n            event.preventDefault();\n        }\n    }\n    /**\n     * `Selects the option while indicating the selection came from the user. Used to\n     * determine if the select's view -> model callback should be invoked.`\n     * @return {?}\n     */\n    _selectViaInteraction() {\n        if (!this.disabled) {\n            this._selected = this.multiple ? !this._selected : true;\n            this._changeDetectorRef.markForCheck();\n            this._emitSelectionChangeEvent(true);\n        }\n    }\n    /**\n     * Gets the `aria-selected` value for the option. We explicitly omit the `aria-selected`\n     * attribute from single-selection, unselected options. Including the `aria-selected=\"false\"`\n     * attributes adds a significant amount of noise to screen-reader users without providing useful\n     * information.\n     * @return {?}\n     */\n    _getAriaSelected() {\n        return this.selected || (this.multiple ? false : null);\n    }\n    /**\n     * Returns the correct tabindex for the option depending on disabled state.\n     * @return {?}\n     */\n    _getTabIndex() {\n        return this.disabled ? '-1' : '0';\n    }\n    /**\n     * Gets the host DOM element.\n     * @return {?}\n     */\n    _getHostElement() {\n        return this._element.nativeElement;\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterViewChecked() {\n        // Since parent components could be using the option's label to display the selected values\n        // (e.g. `mat-select`) and they don't have a way of knowing if the option's label has changed\n        // we have to check for changes in the DOM ourselves and dispatch an event. These checks are\n        // relatively cheap, however we still limit them only to selected options in order to avoid\n        // hitting the DOM too often.\n        if (this._selected) {\n            /** @type {?} */\n            const viewValue = this.viewValue;\n            if (viewValue !== this._mostRecentViewValue) {\n                this._mostRecentViewValue = viewValue;\n                this._stateChanges.next();\n            }\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._stateChanges.complete();\n    }\n    /**\n     * Emits the selection change event.\n     * @private\n     * @param {?=} isUserInput\n     * @return {?}\n     */\n    _emitSelectionChangeEvent(isUserInput = false) {\n        this.onSelectionChange.emit(new MatOptionSelectionChange(this, isUserInput));\n    }\n}\nMatOption.ɵfac = function MatOption_Factory(t) { return new (t || MatOption)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(MAT_OPTION_PARENT_COMPONENT, 8), ɵngcc0.ɵɵdirectiveInject(MatOptgroup, 8)); };\nMatOption.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatOption, selectors: [[\"mat-option\"]], hostAttrs: [\"role\", \"option\", 1, \"mat-option\", \"mat-focus-indicator\"], hostVars: 12, hostBindings: function MatOption_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"click\", function MatOption_click_HostBindingHandler() { return ctx._selectViaInteraction(); })(\"keydown\", function MatOption_keydown_HostBindingHandler($event) { return ctx._handleKeydown($event); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵhostProperty(\"id\", ctx.id);\n        ɵngcc0.ɵɵattribute(\"tabindex\", ctx._getTabIndex())(\"aria-selected\", ctx._getAriaSelected())(\"aria-disabled\", ctx.disabled.toString());\n        ɵngcc0.ɵɵclassProp(\"mat-selected\", ctx.selected)(\"mat-option-multiple\", ctx.multiple)(\"mat-active\", ctx.active)(\"mat-option-disabled\", ctx.disabled);\n    } }, inputs: { id: \"id\", disabled: \"disabled\", value: \"value\" }, outputs: { onSelectionChange: \"onSelectionChange\" }, exportAs: [\"matOption\"], ngContentSelectors: _c2, decls: 4, vars: 3, consts: [[\"class\", \"mat-option-pseudo-checkbox\", 3, \"state\", \"disabled\", 4, \"ngIf\"], [1, \"mat-option-text\"], [\"mat-ripple\", \"\", 1, \"mat-option-ripple\", 3, \"matRippleTrigger\", \"matRippleDisabled\"], [1, \"mat-option-pseudo-checkbox\", 3, \"state\", \"disabled\"]], template: function MatOption_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵtemplate(0, MatOption_mat_pseudo_checkbox_0_Template, 1, 2, \"mat-pseudo-checkbox\", 0);\n        ɵngcc0.ɵɵelementStart(1, \"span\", 1);\n        ɵngcc0.ɵɵprojection(2);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelement(3, \"div\", 2);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.multiple);\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵproperty(\"matRippleTrigger\", ctx._getHostElement())(\"matRippleDisabled\", ctx.disabled || ctx.disableRipple);\n    } }, directives: [ɵngcc3.NgIf, MatRipple, MatPseudoCheckbox], styles: [\".mat-option{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;position:relative;cursor:pointer;outline:none;display:flex;flex-direction:row;max-width:100%;box-sizing:border-box;align-items:center;-webkit-tap-highlight-color:transparent}.mat-option[disabled]{cursor:default}[dir=rtl] .mat-option{text-align:right}.mat-option .mat-icon{margin-right:16px;vertical-align:middle}.mat-option .mat-icon svg{vertical-align:top}[dir=rtl] .mat-option .mat-icon{margin-left:16px;margin-right:0}.mat-option[aria-disabled=true]{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-optgroup .mat-option:not(.mat-option-multiple){padding-left:32px}[dir=rtl] .mat-optgroup .mat-option:not(.mat-option-multiple){padding-left:16px;padding-right:32px}.cdk-high-contrast-active .mat-option{margin:0 1px}.cdk-high-contrast-active .mat-option.mat-active{border:solid 1px currentColor;margin:0}.mat-option-text{display:inline-block;flex-grow:1;overflow:hidden;text-overflow:ellipsis}.mat-option .mat-option-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}.cdk-high-contrast-active .mat-option .mat-option-ripple{opacity:.5}.mat-option-pseudo-checkbox{margin-right:8px}[dir=rtl] .mat-option-pseudo-checkbox{margin-left:8px;margin-right:0}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatOption.ctorParameters = () => [\n    { type: ElementRef },\n    { type: ChangeDetectorRef },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_OPTION_PARENT_COMPONENT,] }] },\n    { type: MatOptgroup, decorators: [{ type: Optional }] }\n];\nMatOption.propDecorators = {\n    value: [{ type: Input }],\n    id: [{ type: Input }],\n    disabled: [{ type: Input }],\n    onSelectionChange: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatOption, [{\n        type: Component,\n        args: [{\n                selector: 'mat-option',\n                exportAs: 'matOption',\n                host: {\n                    'role': 'option',\n                    '[attr.tabindex]': '_getTabIndex()',\n                    '[class.mat-selected]': 'selected',\n                    '[class.mat-option-multiple]': 'multiple',\n                    '[class.mat-active]': 'active',\n                    '[id]': 'id',\n                    '[attr.aria-selected]': '_getAriaSelected()',\n                    '[attr.aria-disabled]': 'disabled.toString()',\n                    '[class.mat-option-disabled]': 'disabled',\n                    '(click)': '_selectViaInteraction()',\n                    '(keydown)': '_handleKeydown($event)',\n                    'class': 'mat-option mat-focus-indicator'\n                },\n                template: \"<mat-pseudo-checkbox *ngIf=\\\"multiple\\\" class=\\\"mat-option-pseudo-checkbox\\\"\\n    [state]=\\\"selected ? 'checked' : 'unchecked'\\\" [disabled]=\\\"disabled\\\"></mat-pseudo-checkbox>\\n\\n<span class=\\\"mat-option-text\\\"><ng-content></ng-content></span>\\n\\n<div class=\\\"mat-option-ripple\\\" mat-ripple\\n     [matRippleTrigger]=\\\"_getHostElement()\\\"\\n     [matRippleDisabled]=\\\"disabled || disableRipple\\\">\\n</div>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\".mat-option{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;position:relative;cursor:pointer;outline:none;display:flex;flex-direction:row;max-width:100%;box-sizing:border-box;align-items:center;-webkit-tap-highlight-color:transparent}.mat-option[disabled]{cursor:default}[dir=rtl] .mat-option{text-align:right}.mat-option .mat-icon{margin-right:16px;vertical-align:middle}.mat-option .mat-icon svg{vertical-align:top}[dir=rtl] .mat-option .mat-icon{margin-left:16px;margin-right:0}.mat-option[aria-disabled=true]{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-optgroup .mat-option:not(.mat-option-multiple){padding-left:32px}[dir=rtl] .mat-optgroup .mat-option:not(.mat-option-multiple){padding-left:16px;padding-right:32px}.cdk-high-contrast-active .mat-option{margin:0 1px}.cdk-high-contrast-active .mat-option.mat-active{border:solid 1px currentColor;margin:0}.mat-option-text{display:inline-block;flex-grow:1;overflow:hidden;text-overflow:ellipsis}.mat-option .mat-option-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}.cdk-high-contrast-active .mat-option .mat-option-ripple{opacity:.5}.mat-option-pseudo-checkbox{margin-right:8px}[dir=rtl] .mat-option-pseudo-checkbox{margin-left:8px;margin-right:0}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.ChangeDetectorRef }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_OPTION_PARENT_COMPONENT]\n            }] }, { type: MatOptgroup, decorators: [{\n                type: Optional\n            }] }]; }, { id: [{\n            type: Input\n        }], onSelectionChange: [{\n            type: Output\n        }], disabled: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatOption.ngAcceptInputType_disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatOption.prototype._selected;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatOption.prototype._active;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatOption.prototype._disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatOption.prototype._mostRecentViewValue;\n    /**\n     * The form value of the option.\n     * @type {?}\n     */\n    MatOption.prototype.value;\n    /**\n     * The unique ID of the option.\n     * @type {?}\n     */\n    MatOption.prototype.id;\n    /**\n     * Event emitted when the option is selected or deselected.\n     * @type {?}\n     */\n    MatOption.prototype.onSelectionChange;\n    /**\n     * Emits when the state of the option changes and any parents have to be notified.\n     * @type {?}\n     */\n    MatOption.prototype._stateChanges;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatOption.prototype._element;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatOption.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatOption.prototype._parent;\n    /** @type {?} */\n    MatOption.prototype.group;\n}\n/**\n * Counts the amount of option group labels that precede the specified option.\n * \\@docs-private\n * @param {?} optionIndex Index of the option at which to start counting.\n * @param {?} options Flat list of all of the options.\n * @param {?} optionGroups Flat list of all of the option groups.\n * @return {?}\n */\nfunction _countGroupLabelsBeforeOption(optionIndex, options, optionGroups) {\n    if (optionGroups.length) {\n        /** @type {?} */\n        let optionsArray = options.toArray();\n        /** @type {?} */\n        let groups = optionGroups.toArray();\n        /** @type {?} */\n        let groupCounter = 0;\n        for (let i = 0; i < optionIndex + 1; i++) {\n            if (optionsArray[i].group && optionsArray[i].group === groups[groupCounter]) {\n                groupCounter++;\n            }\n        }\n        return groupCounter;\n    }\n    return 0;\n}\n/**\n * Determines the position to which to scroll a panel in order for an option to be into view.\n * \\@docs-private\n * @param {?} optionIndex Index of the option to be scrolled into the view.\n * @param {?} optionHeight Height of the options.\n * @param {?} currentScrollPosition Current scroll position of the panel.\n * @param {?} panelHeight Height of the panel.\n * @return {?}\n */\nfunction _getOptionScrollPosition(optionIndex, optionHeight, currentScrollPosition, panelHeight) {\n    /** @type {?} */\n    const optionOffset = optionIndex * optionHeight;\n    if (optionOffset < currentScrollPosition) {\n        return optionOffset;\n    }\n    if (optionOffset + optionHeight > currentScrollPosition + panelHeight) {\n        return Math.max(0, optionOffset - panelHeight + optionHeight);\n    }\n    return currentScrollPosition;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/option/index.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatOptionModule {\n}\nMatOptionModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatOptionModule });\nMatOptionModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatOptionModule_Factory(t) { return new (t || MatOptionModule)(); }, imports: [[MatRippleModule, CommonModule, MatPseudoCheckboxModule]] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatOptionModule, { declarations: function () { return [MatOption, MatOptgroup]; }, imports: function () { return [MatRippleModule, CommonModule, MatPseudoCheckboxModule]; }, exports: function () { return [MatOption, MatOptgroup]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatOptionModule, [{\n        type: NgModule,\n        args: [{\n                imports: [MatRippleModule, CommonModule, MatPseudoCheckboxModule],\n                exports: [MatOption, MatOptgroup],\n                declarations: [MatOption, MatOptgroup]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/label/label-options.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * InjectionToken that can be used to specify the global label options.\n * @deprecated Use `MAT_FORM_FIELD_DEFAULT_OPTIONS` injection token from\n *     `\\@angular/material/form-field` instead.\n * \\@breaking-change 11.0.0\n * @type {?}\n */\nconst MAT_LABEL_GLOBAL_OPTIONS = new InjectionToken('mat-label-global-options');\n/**\n * Configurable options for floating labels.\n * @deprecated Use `MatFormFieldDefaultOptions` from `\\@angular/material/form-field` instead.\n * \\@breaking-change 11.0.0\n * @record\n */\nfunction LabelOptions() { }\nif (false) {\n    /**\n     * Whether the label should float `always`, `never`, or `auto` (only when necessary).\n     * Default behavior is assumed to be `auto`.\n     * @type {?|undefined}\n     */\n    LabelOptions.prototype.float;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/month-constants.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * When constructing a Date, the month is zero-based. This can be confusing, since people are\n * used to seeing them one-based. So we create these aliases to make writing the tests easier.\n * \\@docs-private\n * \\@breaking-change 8.0.0 Remove this with V8 since it was only targeted for testing.\n * @type {?}\n */\nconst JAN = 0;\n/** @type {?} */\nconst FEB = 1;\n/** @type {?} */\nconst MAR = 2;\n/** @type {?} */\nconst APR = 3;\n/** @type {?} */\nconst MAY = 4;\n/** @type {?} */\nconst JUN = 5;\n/** @type {?} */\nconst JUL = 6;\n/** @type {?} */\nconst AUG = 7;\n/** @type {?} */\nconst SEP = 8;\n/** @type {?} */\nconst OCT = 9;\n/** @type {?} */\nconst NOV = 10;\n/** @type {?} */\nconst DEC = 11;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/core/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { APR, AUG, AnimationCurves, AnimationDurations, DEC, DateAdapter, ErrorStateMatcher, FEB, GestureConfig, JAN, JUL, JUN, MAR, MATERIAL_SANITY_CHECKS, MAT_DATE_FORMATS, MAT_DATE_LOCALE, MAT_DATE_LOCALE_FACTORY, MAT_DATE_LOCALE_PROVIDER, MAT_HAMMER_OPTIONS, MAT_LABEL_GLOBAL_OPTIONS, MAT_NATIVE_DATE_FORMATS, MAT_OPTION_PARENT_COMPONENT, MAT_RIPPLE_GLOBAL_OPTIONS, MAY, MatCommonModule, MatLine, MatLineModule, MatLineSetter, MatNativeDateModule, MatOptgroup, MatOption, MatOptionModule, MatOptionSelectionChange, MatPseudoCheckbox, MatPseudoCheckboxModule, MatRipple, MatRippleModule, NOV, NativeDateAdapter, NativeDateModule, OCT, RippleRef, RippleRenderer, SEP, ShowOnDirtyErrorStateMatcher, VERSION, _countGroupLabelsBeforeOption, _getOptionScrollPosition, defaultRippleAnimationConfig, mixinColor, mixinDisableRipple, mixinDisabled, mixinErrorState, mixinInitialized, mixinTabIndex, setLines, MATERIAL_SANITY_CHECKS_FACTORY as ɵangular_material_src_material_core_core_a };\n\n//# sourceMappingURL=core.js.map","import { Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, Optional, Inject, ViewChild, Input, NgModule } from '@angular/core';\nimport { mixinColor, mixinDisabled, mixinDisableRipple, MatRipple, MatRippleModule, MatCommonModule } from '@angular/material/core';\nimport { FocusMonitor } from '@angular/cdk/a11y';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/button/button.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Default color palette for round buttons (mat-fab and mat-mini-fab)\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/material/core';\n\nconst _c0 = [\"mat-button\", \"\"];\nconst _c1 = [\"*\"];\nconst DEFAULT_ROUND_BUTTON_COLOR = 'accent';\n/**\n * List of classes to add to MatButton instances based on host attributes to\n * style as different variants.\n * @type {?}\n */\nconst BUTTON_HOST_ATTRIBUTES = [\n    'mat-button',\n    'mat-flat-button',\n    'mat-icon-button',\n    'mat-raised-button',\n    'mat-stroked-button',\n    'mat-mini-fab',\n    'mat-fab',\n];\n// Boilerplate for applying mixins to MatButton.\n/**\n * \\@docs-private\n */\nclass MatButtonBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatButtonBase.prototype._elementRef;\n}\n/** @type {?} */\nconst _MatButtonMixinBase = mixinColor(mixinDisabled(mixinDisableRipple(MatButtonBase)));\n/**\n * Material design button.\n */\nclass MatButton extends _MatButtonMixinBase {\n    /**\n     * @param {?} elementRef\n     * @param {?} _focusMonitor\n     * @param {?} _animationMode\n     */\n    constructor(elementRef, _focusMonitor, _animationMode) {\n        super(elementRef);\n        this._focusMonitor = _focusMonitor;\n        this._animationMode = _animationMode;\n        /**\n         * Whether the button is round.\n         */\n        this.isRoundButton = this._hasHostAttributes('mat-fab', 'mat-mini-fab');\n        /**\n         * Whether the button is icon button.\n         */\n        this.isIconButton = this._hasHostAttributes('mat-icon-button');\n        // For each of the variant selectors that is present in the button's host\n        // attributes, add the correct corresponding class.\n        for (const attr of BUTTON_HOST_ATTRIBUTES) {\n            if (this._hasHostAttributes(attr)) {\n                ((/** @type {?} */ (this._getHostElement()))).classList.add(attr);\n            }\n        }\n        // Add a class that applies to all buttons. This makes it easier to target if somebody\n        // wants to target all Material buttons. We do it here rather than `host` to ensure that\n        // the class is applied to derived classes.\n        elementRef.nativeElement.classList.add('mat-button-base');\n        this._focusMonitor.monitor(this._elementRef, true);\n        if (this.isRoundButton) {\n            this.color = DEFAULT_ROUND_BUTTON_COLOR;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._focusMonitor.stopMonitoring(this._elementRef);\n    }\n    /**\n     * Focuses the button.\n     * @param {?=} origin\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(origin = 'program', options) {\n        this._focusMonitor.focusVia(this._getHostElement(), origin, options);\n    }\n    /**\n     * @return {?}\n     */\n    _getHostElement() {\n        return this._elementRef.nativeElement;\n    }\n    /**\n     * @return {?}\n     */\n    _isRippleDisabled() {\n        return this.disableRipple || this.disabled;\n    }\n    /**\n     * Gets whether the button has one of the given attributes.\n     * @param {...?} attributes\n     * @return {?}\n     */\n    _hasHostAttributes(...attributes) {\n        return attributes.some((/**\n         * @param {?} attribute\n         * @return {?}\n         */\n        attribute => this._getHostElement().hasAttribute(attribute)));\n    }\n}\nMatButton.ɵfac = function MatButton_Factory(t) { return new (t || MatButton)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8)); };\nMatButton.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatButton, selectors: [[\"button\", \"mat-button\", \"\"], [\"button\", \"mat-raised-button\", \"\"], [\"button\", \"mat-icon-button\", \"\"], [\"button\", \"mat-fab\", \"\"], [\"button\", \"mat-mini-fab\", \"\"], [\"button\", \"mat-stroked-button\", \"\"], [\"button\", \"mat-flat-button\", \"\"]], viewQuery: function MatButton_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(MatRipple, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.ripple = _t.first);\n    } }, hostAttrs: [1, \"mat-focus-indicator\"], hostVars: 3, hostBindings: function MatButton_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"disabled\", ctx.disabled || null);\n        ɵngcc0.ɵɵclassProp(\"_mat-animation-noopable\", ctx._animationMode === \"NoopAnimations\");\n    } }, inputs: { disabled: \"disabled\", disableRipple: \"disableRipple\", color: \"color\" }, exportAs: [\"matButton\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], attrs: _c0, ngContentSelectors: _c1, decls: 4, vars: 5, consts: [[1, \"mat-button-wrapper\"], [\"matRipple\", \"\", 1, \"mat-button-ripple\", 3, \"matRippleDisabled\", \"matRippleCentered\", \"matRippleTrigger\"], [1, \"mat-button-focus-overlay\"]], template: function MatButton_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵelementStart(0, \"span\", 0);\n        ɵngcc0.ɵɵprojection(1);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelement(2, \"div\", 1);\n        ɵngcc0.ɵɵelement(3, \"div\", 2);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵclassProp(\"mat-button-ripple-round\", ctx.isRoundButton || ctx.isIconButton);\n        ɵngcc0.ɵɵproperty(\"matRippleDisabled\", ctx._isRippleDisabled())(\"matRippleCentered\", ctx.isIconButton)(\"matRippleTrigger\", ctx._getHostElement());\n    } }, directives: [ɵngcc2.MatRipple], styles: [\".mat-button .mat-button-focus-overlay,.mat-icon-button .mat-button-focus-overlay{opacity:0}.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:.04}@media(hover: none){.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:0}}.mat-button,.mat-icon-button,.mat-stroked-button,.mat-flat-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-button[disabled],.mat-icon-button[disabled],.mat-stroked-button[disabled],.mat-flat-button[disabled]{cursor:default}.mat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-button.cdk-program-focused .mat-button-focus-overlay,.mat-icon-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-icon-button.cdk-program-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-program-focused .mat-button-focus-overlay,.mat-flat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-flat-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-raised-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1)}.mat-raised-button::-moz-focus-inner{border:0}.mat-raised-button[disabled]{cursor:default}.mat-raised-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-raised-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-raised-button::-moz-focus-inner{border:0}._mat-animation-noopable.mat-raised-button{transition:none;animation:none}.mat-stroked-button{border:1px solid currentColor;padding:0 15px;line-height:34px}.mat-stroked-button .mat-button-ripple.mat-ripple,.mat-stroked-button .mat-button-focus-overlay{top:-1px;left:-1px;right:-1px;bottom:-1px}.mat-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:56px;height:56px;padding:0;flex-shrink:0}.mat-fab::-moz-focus-inner{border:0}.mat-fab[disabled]{cursor:default}.mat-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-fab{transition:none;animation:none}.mat-fab .mat-button-wrapper{padding:16px 0;display:inline-block;line-height:24px}.mat-mini-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:40px;height:40px;padding:0;flex-shrink:0}.mat-mini-fab::-moz-focus-inner{border:0}.mat-mini-fab[disabled]{cursor:default}.mat-mini-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-mini-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-mini-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-mini-fab{transition:none;animation:none}.mat-mini-fab .mat-button-wrapper{padding:8px 0;display:inline-block;line-height:24px}.mat-icon-button{padding:0;min-width:0;width:40px;height:40px;flex-shrink:0;line-height:40px;border-radius:50%}.mat-icon-button i,.mat-icon-button .mat-icon{line-height:24px}.mat-button-ripple.mat-ripple,.mat-button-focus-overlay{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit}.mat-button-ripple.mat-ripple:not(:empty){transform:translateZ(0)}.mat-button-focus-overlay{opacity:0;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1),background-color 200ms cubic-bezier(0.35, 0, 0.25, 1)}._mat-animation-noopable .mat-button-focus-overlay{transition:none}.cdk-high-contrast-active .mat-button-focus-overlay{background-color:#fff}.cdk-high-contrast-black-on-white .mat-button-focus-overlay{background-color:#000}.mat-button-ripple-round{border-radius:50%;z-index:1}.mat-button .mat-button-wrapper>*,.mat-flat-button .mat-button-wrapper>*,.mat-stroked-button .mat-button-wrapper>*,.mat-raised-button .mat-button-wrapper>*,.mat-icon-button .mat-button-wrapper>*,.mat-fab .mat-button-wrapper>*,.mat-mini-fab .mat-button-wrapper>*{vertical-align:middle}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button{display:block;font-size:inherit;width:2.5em;height:2.5em}.cdk-high-contrast-active .mat-button,.cdk-high-contrast-active .mat-flat-button,.cdk-high-contrast-active .mat-raised-button,.cdk-high-contrast-active .mat-icon-button,.cdk-high-contrast-active .mat-fab,.cdk-high-contrast-active .mat-mini-fab{outline:solid 1px}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatButton.ctorParameters = () => [\n    { type: ElementRef },\n    { type: FocusMonitor },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }\n];\nMatButton.propDecorators = {\n    ripple: [{ type: ViewChild, args: [MatRipple,] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatButton, [{\n        type: Component,\n        args: [{\n                selector: `button[mat-button], button[mat-raised-button], button[mat-icon-button],\n             button[mat-fab], button[mat-mini-fab], button[mat-stroked-button],\n             button[mat-flat-button]`,\n                exportAs: 'matButton',\n                host: {\n                    '[attr.disabled]': 'disabled || null',\n                    '[class._mat-animation-noopable]': '_animationMode === \"NoopAnimations\"',\n                    'class': 'mat-focus-indicator'\n                },\n                template: \"<span class=\\\"mat-button-wrapper\\\"><ng-content></ng-content></span>\\n<div matRipple class=\\\"mat-button-ripple\\\"\\n     [class.mat-button-ripple-round]=\\\"isRoundButton || isIconButton\\\"\\n     [matRippleDisabled]=\\\"_isRippleDisabled()\\\"\\n     [matRippleCentered]=\\\"isIconButton\\\"\\n     [matRippleTrigger]=\\\"_getHostElement()\\\"></div>\\n<div class=\\\"mat-button-focus-overlay\\\"></div>\\n\",\n                inputs: ['disabled', 'disableRipple', 'color'],\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\".mat-button .mat-button-focus-overlay,.mat-icon-button .mat-button-focus-overlay{opacity:0}.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:.04}@media(hover: none){.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:0}}.mat-button,.mat-icon-button,.mat-stroked-button,.mat-flat-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-button[disabled],.mat-icon-button[disabled],.mat-stroked-button[disabled],.mat-flat-button[disabled]{cursor:default}.mat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-button.cdk-program-focused .mat-button-focus-overlay,.mat-icon-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-icon-button.cdk-program-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-program-focused .mat-button-focus-overlay,.mat-flat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-flat-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-raised-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1)}.mat-raised-button::-moz-focus-inner{border:0}.mat-raised-button[disabled]{cursor:default}.mat-raised-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-raised-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-raised-button::-moz-focus-inner{border:0}._mat-animation-noopable.mat-raised-button{transition:none;animation:none}.mat-stroked-button{border:1px solid currentColor;padding:0 15px;line-height:34px}.mat-stroked-button .mat-button-ripple.mat-ripple,.mat-stroked-button .mat-button-focus-overlay{top:-1px;left:-1px;right:-1px;bottom:-1px}.mat-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:56px;height:56px;padding:0;flex-shrink:0}.mat-fab::-moz-focus-inner{border:0}.mat-fab[disabled]{cursor:default}.mat-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-fab{transition:none;animation:none}.mat-fab .mat-button-wrapper{padding:16px 0;display:inline-block;line-height:24px}.mat-mini-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:40px;height:40px;padding:0;flex-shrink:0}.mat-mini-fab::-moz-focus-inner{border:0}.mat-mini-fab[disabled]{cursor:default}.mat-mini-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-mini-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-mini-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-mini-fab{transition:none;animation:none}.mat-mini-fab .mat-button-wrapper{padding:8px 0;display:inline-block;line-height:24px}.mat-icon-button{padding:0;min-width:0;width:40px;height:40px;flex-shrink:0;line-height:40px;border-radius:50%}.mat-icon-button i,.mat-icon-button .mat-icon{line-height:24px}.mat-button-ripple.mat-ripple,.mat-button-focus-overlay{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit}.mat-button-ripple.mat-ripple:not(:empty){transform:translateZ(0)}.mat-button-focus-overlay{opacity:0;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1),background-color 200ms cubic-bezier(0.35, 0, 0.25, 1)}._mat-animation-noopable .mat-button-focus-overlay{transition:none}.cdk-high-contrast-active .mat-button-focus-overlay{background-color:#fff}.cdk-high-contrast-black-on-white .mat-button-focus-overlay{background-color:#000}.mat-button-ripple-round{border-radius:50%;z-index:1}.mat-button .mat-button-wrapper>*,.mat-flat-button .mat-button-wrapper>*,.mat-stroked-button .mat-button-wrapper>*,.mat-raised-button .mat-button-wrapper>*,.mat-icon-button .mat-button-wrapper>*,.mat-fab .mat-button-wrapper>*,.mat-mini-fab .mat-button-wrapper>*{vertical-align:middle}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button{display:block;font-size:inherit;width:2.5em;height:2.5em}.cdk-high-contrast-active .mat-button,.cdk-high-contrast-active .mat-flat-button,.cdk-high-contrast-active .mat-raised-button,.cdk-high-contrast-active .mat-icon-button,.cdk-high-contrast-active .mat-fab,.cdk-high-contrast-active .mat-mini-fab{outline:solid 1px}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc1.FocusMonitor }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }]; }, { ripple: [{\n            type: ViewChild,\n            args: [MatRipple]\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatButton.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatButton.ngAcceptInputType_disableRipple;\n    /**\n     * Whether the button is round.\n     * @type {?}\n     */\n    MatButton.prototype.isRoundButton;\n    /**\n     * Whether the button is icon button.\n     * @type {?}\n     */\n    MatButton.prototype.isIconButton;\n    /**\n     * Reference to the MatRipple instance of the button.\n     * @type {?}\n     */\n    MatButton.prototype.ripple;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButton.prototype._focusMonitor;\n    /** @type {?} */\n    MatButton.prototype._animationMode;\n}\n/**\n * Material design anchor button.\n */\nclass MatAnchor extends MatButton {\n    /**\n     * @param {?} focusMonitor\n     * @param {?} elementRef\n     * @param {?} animationMode\n     */\n    constructor(focusMonitor, elementRef, animationMode) {\n        super(elementRef, focusMonitor, animationMode);\n    }\n    /**\n     * @param {?} event\n     * @return {?}\n     */\n    _haltDisabledEvents(event) {\n        // A disabled button shouldn't apply any actions\n        if (this.disabled) {\n            event.preventDefault();\n            event.stopImmediatePropagation();\n        }\n    }\n}\nMatAnchor.ɵfac = function MatAnchor_Factory(t) { return new (t || MatAnchor)(ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8)); };\nMatAnchor.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatAnchor, selectors: [[\"a\", \"mat-button\", \"\"], [\"a\", \"mat-raised-button\", \"\"], [\"a\", \"mat-icon-button\", \"\"], [\"a\", \"mat-fab\", \"\"], [\"a\", \"mat-mini-fab\", \"\"], [\"a\", \"mat-stroked-button\", \"\"], [\"a\", \"mat-flat-button\", \"\"]], hostAttrs: [1, \"mat-focus-indicator\"], hostVars: 5, hostBindings: function MatAnchor_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"click\", function MatAnchor_click_HostBindingHandler($event) { return ctx._haltDisabledEvents($event); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"tabindex\", ctx.disabled ? 0 - 1 : ctx.tabIndex || 0)(\"disabled\", ctx.disabled || null)(\"aria-disabled\", ctx.disabled.toString());\n        ɵngcc0.ɵɵclassProp(\"_mat-animation-noopable\", ctx._animationMode === \"NoopAnimations\");\n    } }, inputs: { disabled: \"disabled\", disableRipple: \"disableRipple\", color: \"color\", tabIndex: \"tabIndex\" }, exportAs: [\"matButton\", \"matAnchor\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], attrs: _c0, ngContentSelectors: _c1, decls: 4, vars: 5, consts: [[1, \"mat-button-wrapper\"], [\"matRipple\", \"\", 1, \"mat-button-ripple\", 3, \"matRippleDisabled\", \"matRippleCentered\", \"matRippleTrigger\"], [1, \"mat-button-focus-overlay\"]], template: function MatAnchor_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵelementStart(0, \"span\", 0);\n        ɵngcc0.ɵɵprojection(1);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelement(2, \"div\", 1);\n        ɵngcc0.ɵɵelement(3, \"div\", 2);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵclassProp(\"mat-button-ripple-round\", ctx.isRoundButton || ctx.isIconButton);\n        ɵngcc0.ɵɵproperty(\"matRippleDisabled\", ctx._isRippleDisabled())(\"matRippleCentered\", ctx.isIconButton)(\"matRippleTrigger\", ctx._getHostElement());\n    } }, directives: [ɵngcc2.MatRipple], styles: [\".mat-button .mat-button-focus-overlay,.mat-icon-button .mat-button-focus-overlay{opacity:0}.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:.04}@media(hover: none){.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:0}}.mat-button,.mat-icon-button,.mat-stroked-button,.mat-flat-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-button[disabled],.mat-icon-button[disabled],.mat-stroked-button[disabled],.mat-flat-button[disabled]{cursor:default}.mat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-button.cdk-program-focused .mat-button-focus-overlay,.mat-icon-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-icon-button.cdk-program-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-program-focused .mat-button-focus-overlay,.mat-flat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-flat-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-raised-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1)}.mat-raised-button::-moz-focus-inner{border:0}.mat-raised-button[disabled]{cursor:default}.mat-raised-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-raised-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-raised-button::-moz-focus-inner{border:0}._mat-animation-noopable.mat-raised-button{transition:none;animation:none}.mat-stroked-button{border:1px solid currentColor;padding:0 15px;line-height:34px}.mat-stroked-button .mat-button-ripple.mat-ripple,.mat-stroked-button .mat-button-focus-overlay{top:-1px;left:-1px;right:-1px;bottom:-1px}.mat-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:56px;height:56px;padding:0;flex-shrink:0}.mat-fab::-moz-focus-inner{border:0}.mat-fab[disabled]{cursor:default}.mat-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-fab{transition:none;animation:none}.mat-fab .mat-button-wrapper{padding:16px 0;display:inline-block;line-height:24px}.mat-mini-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:40px;height:40px;padding:0;flex-shrink:0}.mat-mini-fab::-moz-focus-inner{border:0}.mat-mini-fab[disabled]{cursor:default}.mat-mini-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-mini-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-mini-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-mini-fab{transition:none;animation:none}.mat-mini-fab .mat-button-wrapper{padding:8px 0;display:inline-block;line-height:24px}.mat-icon-button{padding:0;min-width:0;width:40px;height:40px;flex-shrink:0;line-height:40px;border-radius:50%}.mat-icon-button i,.mat-icon-button .mat-icon{line-height:24px}.mat-button-ripple.mat-ripple,.mat-button-focus-overlay{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit}.mat-button-ripple.mat-ripple:not(:empty){transform:translateZ(0)}.mat-button-focus-overlay{opacity:0;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1),background-color 200ms cubic-bezier(0.35, 0, 0.25, 1)}._mat-animation-noopable .mat-button-focus-overlay{transition:none}.cdk-high-contrast-active .mat-button-focus-overlay{background-color:#fff}.cdk-high-contrast-black-on-white .mat-button-focus-overlay{background-color:#000}.mat-button-ripple-round{border-radius:50%;z-index:1}.mat-button .mat-button-wrapper>*,.mat-flat-button .mat-button-wrapper>*,.mat-stroked-button .mat-button-wrapper>*,.mat-raised-button .mat-button-wrapper>*,.mat-icon-button .mat-button-wrapper>*,.mat-fab .mat-button-wrapper>*,.mat-mini-fab .mat-button-wrapper>*{vertical-align:middle}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button{display:block;font-size:inherit;width:2.5em;height:2.5em}.cdk-high-contrast-active .mat-button,.cdk-high-contrast-active .mat-flat-button,.cdk-high-contrast-active .mat-raised-button,.cdk-high-contrast-active .mat-icon-button,.cdk-high-contrast-active .mat-fab,.cdk-high-contrast-active .mat-mini-fab{outline:solid 1px}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatAnchor.ctorParameters = () => [\n    { type: FocusMonitor },\n    { type: ElementRef },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }\n];\nMatAnchor.propDecorators = {\n    tabIndex: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatAnchor, [{\n        type: Component,\n        args: [{\n                selector: `a[mat-button], a[mat-raised-button], a[mat-icon-button], a[mat-fab],\n             a[mat-mini-fab], a[mat-stroked-button], a[mat-flat-button]`,\n                exportAs: 'matButton, matAnchor',\n                host: {\n                    // Note that we ignore the user-specified tabindex when it's disabled for\n                    // consistency with the `mat-button` applied on native buttons where even\n                    // though they have an index, they're not tabbable.\n                    '[attr.tabindex]': 'disabled ? -1 : (tabIndex || 0)',\n                    '[attr.disabled]': 'disabled || null',\n                    '[attr.aria-disabled]': 'disabled.toString()',\n                    '(click)': '_haltDisabledEvents($event)',\n                    '[class._mat-animation-noopable]': '_animationMode === \"NoopAnimations\"',\n                    'class': 'mat-focus-indicator'\n                },\n                inputs: ['disabled', 'disableRipple', 'color'],\n                template: \"<span class=\\\"mat-button-wrapper\\\"><ng-content></ng-content></span>\\n<div matRipple class=\\\"mat-button-ripple\\\"\\n     [class.mat-button-ripple-round]=\\\"isRoundButton || isIconButton\\\"\\n     [matRippleDisabled]=\\\"_isRippleDisabled()\\\"\\n     [matRippleCentered]=\\\"isIconButton\\\"\\n     [matRippleTrigger]=\\\"_getHostElement()\\\"></div>\\n<div class=\\\"mat-button-focus-overlay\\\"></div>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\".mat-button .mat-button-focus-overlay,.mat-icon-button .mat-button-focus-overlay{opacity:0}.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:.04}@media(hover: none){.mat-button:hover .mat-button-focus-overlay,.mat-stroked-button:hover .mat-button-focus-overlay{opacity:0}}.mat-button,.mat-icon-button,.mat-stroked-button,.mat-flat-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-button[disabled],.mat-icon-button[disabled],.mat-stroked-button[disabled],.mat-flat-button[disabled]{cursor:default}.mat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-button.cdk-program-focused .mat-button-focus-overlay,.mat-icon-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-icon-button.cdk-program-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-stroked-button.cdk-program-focused .mat-button-focus-overlay,.mat-flat-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-flat-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-button::-moz-focus-inner,.mat-icon-button::-moz-focus-inner,.mat-stroked-button::-moz-focus-inner,.mat-flat-button::-moz-focus-inner{border:0}.mat-raised-button{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1)}.mat-raised-button::-moz-focus-inner{border:0}.mat-raised-button[disabled]{cursor:default}.mat-raised-button.cdk-keyboard-focused .mat-button-focus-overlay,.mat-raised-button.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-raised-button::-moz-focus-inner{border:0}._mat-animation-noopable.mat-raised-button{transition:none;animation:none}.mat-stroked-button{border:1px solid currentColor;padding:0 15px;line-height:34px}.mat-stroked-button .mat-button-ripple.mat-ripple,.mat-stroked-button .mat-button-focus-overlay{top:-1px;left:-1px;right:-1px;bottom:-1px}.mat-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:56px;height:56px;padding:0;flex-shrink:0}.mat-fab::-moz-focus-inner{border:0}.mat-fab[disabled]{cursor:default}.mat-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-fab{transition:none;animation:none}.mat-fab .mat-button-wrapper{padding:16px 0;display:inline-block;line-height:24px}.mat-mini-fab{box-sizing:border-box;position:relative;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;display:inline-block;white-space:nowrap;text-decoration:none;vertical-align:baseline;text-align:center;margin:0;min-width:64px;line-height:36px;padding:0 16px;border-radius:4px;overflow:visible;transform:translate3d(0, 0, 0);transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);min-width:0;border-radius:50%;width:40px;height:40px;padding:0;flex-shrink:0}.mat-mini-fab::-moz-focus-inner{border:0}.mat-mini-fab[disabled]{cursor:default}.mat-mini-fab.cdk-keyboard-focused .mat-button-focus-overlay,.mat-mini-fab.cdk-program-focused .mat-button-focus-overlay{opacity:.12}.mat-mini-fab::-moz-focus-inner{border:0}._mat-animation-noopable.mat-mini-fab{transition:none;animation:none}.mat-mini-fab .mat-button-wrapper{padding:8px 0;display:inline-block;line-height:24px}.mat-icon-button{padding:0;min-width:0;width:40px;height:40px;flex-shrink:0;line-height:40px;border-radius:50%}.mat-icon-button i,.mat-icon-button .mat-icon{line-height:24px}.mat-button-ripple.mat-ripple,.mat-button-focus-overlay{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none;border-radius:inherit}.mat-button-ripple.mat-ripple:not(:empty){transform:translateZ(0)}.mat-button-focus-overlay{opacity:0;transition:opacity 200ms cubic-bezier(0.35, 0, 0.25, 1),background-color 200ms cubic-bezier(0.35, 0, 0.25, 1)}._mat-animation-noopable .mat-button-focus-overlay{transition:none}.cdk-high-contrast-active .mat-button-focus-overlay{background-color:#fff}.cdk-high-contrast-black-on-white .mat-button-focus-overlay{background-color:#000}.mat-button-ripple-round{border-radius:50%;z-index:1}.mat-button .mat-button-wrapper>*,.mat-flat-button .mat-button-wrapper>*,.mat-stroked-button .mat-button-wrapper>*,.mat-raised-button .mat-button-wrapper>*,.mat-icon-button .mat-button-wrapper>*,.mat-fab .mat-button-wrapper>*,.mat-mini-fab .mat-button-wrapper>*{vertical-align:middle}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button{display:block;font-size:inherit;width:2.5em;height:2.5em}.cdk-high-contrast-active .mat-button,.cdk-high-contrast-active .mat-flat-button,.cdk-high-contrast-active .mat-raised-button,.cdk-high-contrast-active .mat-icon-button,.cdk-high-contrast-active .mat-fab,.cdk-high-contrast-active .mat-mini-fab{outline:solid 1px}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc1.FocusMonitor }, { type: ɵngcc0.ElementRef }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }]; }, { tabIndex: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * Tabindex of the button.\n     * @type {?}\n     */\n    MatAnchor.prototype.tabIndex;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/button/button-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatButtonModule {\n}\nMatButtonModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatButtonModule });\nMatButtonModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatButtonModule_Factory(t) { return new (t || MatButtonModule)(); }, imports: [[\n            MatRippleModule,\n            MatCommonModule,\n        ], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatButtonModule, { declarations: function () { return [MatButton, MatAnchor]; }, imports: function () { return [MatRippleModule,\n        MatCommonModule]; }, exports: function () { return [MatButton, MatAnchor, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatButtonModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    MatRippleModule,\n                    MatCommonModule,\n                ],\n                exports: [\n                    MatButton,\n                    MatAnchor,\n                    MatCommonModule,\n                ],\n                declarations: [\n                    MatButton,\n                    MatAnchor,\n                ]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/button/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MatAnchor, MatButton, MatButtonModule };\n\n//# sourceMappingURL=button.js.map","import { NgModule, Injectable, ɵɵdefineInjectable, ɵɵinject, NgZone } from '@angular/core';\nimport { Platform } from '@angular/cdk/platform';\nimport { Subject, combineLatest, concat, Observable } from 'rxjs';\nimport { take, skip, debounceTime, map, startWith, takeUntil } from 'rxjs/operators';\nimport { coerceArray } from '@angular/cdk/coercion';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/layout/layout-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/platform';\nclass LayoutModule {\n}\nLayoutModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: LayoutModule });\nLayoutModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function LayoutModule_Factory(t) { return new (t || LayoutModule)(); } });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(LayoutModule, [{\n        type: NgModule,\n        args: [{}]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/layout/media-matcher.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Global registry for all dynamically-created, injected media queries.\n * @type {?}\n */\nconst mediaQueriesForWebkitCompatibility = new Set();\n/**\n * Style tag that holds all of the dynamically-created media queries.\n * @type {?}\n */\nlet mediaQueryStyleNode;\n/**\n * A utility for calling matchMedia queries.\n */\nclass MediaMatcher {\n    /**\n     * @param {?} _platform\n     */\n    constructor(_platform) {\n        this._platform = _platform;\n        this._matchMedia = this._platform.isBrowser && window.matchMedia ?\n            // matchMedia is bound to the window scope intentionally as it is an illegal invocation to\n            // call it from a different scope.\n            window.matchMedia.bind(window) :\n            noopMatchMedia;\n    }\n    /**\n     * Evaluates the given media query and returns the native MediaQueryList from which results\n     * can be retrieved.\n     * Confirms the layout engine will trigger for the selector query provided and returns the\n     * MediaQueryList for the query provided.\n     * @param {?} query\n     * @return {?}\n     */\n    matchMedia(query) {\n        if (this._platform.WEBKIT) {\n            createEmptyStyleRule(query);\n        }\n        return this._matchMedia(query);\n    }\n}\nMediaMatcher.ɵfac = function MediaMatcher_Factory(t) { return new (t || MediaMatcher)(ɵngcc0.ɵɵinject(ɵngcc1.Platform)); };\n/** @nocollapse */\nMediaMatcher.ctorParameters = () => [\n    { type: Platform }\n];\n/** @nocollapse */ MediaMatcher.ɵprov = ɵɵdefineInjectable({ factory: function MediaMatcher_Factory() { return new MediaMatcher(ɵɵinject(Platform)); }, token: MediaMatcher, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MediaMatcher, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc1.Platform }]; }, null); })();\nif (false) {\n    /**\n     * The internal matchMedia method to return back a MediaQueryList like object.\n     * @type {?}\n     * @private\n     */\n    MediaMatcher.prototype._matchMedia;\n    /**\n     * @type {?}\n     * @private\n     */\n    MediaMatcher.prototype._platform;\n}\n/**\n * For Webkit engines that only trigger the MediaQueryListListener when\n * there is at least one CSS selector for the respective media query.\n * @param {?} query\n * @return {?}\n */\nfunction createEmptyStyleRule(query) {\n    if (mediaQueriesForWebkitCompatibility.has(query)) {\n        return;\n    }\n    try {\n        if (!mediaQueryStyleNode) {\n            mediaQueryStyleNode = document.createElement('style');\n            mediaQueryStyleNode.setAttribute('type', 'text/css');\n            (/** @type {?} */ (document.head)).appendChild(mediaQueryStyleNode);\n        }\n        if (mediaQueryStyleNode.sheet) {\n            ((/** @type {?} */ (mediaQueryStyleNode.sheet)))\n                .insertRule(`@media ${query} {.fx-query-test{ }}`, 0);\n            mediaQueriesForWebkitCompatibility.add(query);\n        }\n    }\n    catch (e) {\n        console.error(e);\n    }\n}\n/**\n * No-op matchMedia replacement for non-browser platforms.\n * @param {?} query\n * @return {?}\n */\nfunction noopMatchMedia(query) {\n    // Use `as any` here to avoid adding additional necessary properties for\n    // the noop matcher.\n    return (/** @type {?} */ ({\n        matches: query === 'all' || query === '',\n        media: query,\n        addListener: (/**\n         * @return {?}\n         */\n        () => { }),\n        removeListener: (/**\n         * @return {?}\n         */\n        () => { })\n    }));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/layout/breakpoints-observer.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The current state of a layout breakpoint.\n * @record\n */\nfunction BreakpointState() { }\nif (false) {\n    /**\n     * Whether the breakpoint is currently matching.\n     * @type {?}\n     */\n    BreakpointState.prototype.matches;\n    /**\n     * A key boolean pair for each query provided to the observe method,\n     * with its current matched state.\n     * @type {?}\n     */\n    BreakpointState.prototype.breakpoints;\n}\n/**\n * The current state of a layout breakpoint.\n * @record\n */\nfunction InternalBreakpointState() { }\nif (false) {\n    /**\n     * Whether the breakpoint is currently matching.\n     * @type {?}\n     */\n    InternalBreakpointState.prototype.matches;\n    /**\n     * The media query being to be matched\n     * @type {?}\n     */\n    InternalBreakpointState.prototype.query;\n}\n/**\n * @record\n */\nfunction Query() { }\nif (false) {\n    /** @type {?} */\n    Query.prototype.observable;\n    /** @type {?} */\n    Query.prototype.mql;\n}\n/**\n * Utility for checking the matching state of \\@media queries.\n */\nclass BreakpointObserver {\n    /**\n     * @param {?} _mediaMatcher\n     * @param {?} _zone\n     */\n    constructor(_mediaMatcher, _zone) {\n        this._mediaMatcher = _mediaMatcher;\n        this._zone = _zone;\n        /**\n         * A map of all media queries currently being listened for.\n         */\n        this._queries = new Map();\n        /**\n         * A subject for all other observables to takeUntil based on.\n         */\n        this._destroySubject = new Subject();\n    }\n    /**\n     * Completes the active subject, signalling to all other observables to complete.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._destroySubject.next();\n        this._destroySubject.complete();\n    }\n    /**\n     * Whether one or more media queries match the current viewport size.\n     * @param {?} value One or more media queries to check.\n     * @return {?} Whether any of the media queries match.\n     */\n    isMatched(value) {\n        /** @type {?} */\n        const queries = splitQueries(coerceArray(value));\n        return queries.some((/**\n         * @param {?} mediaQuery\n         * @return {?}\n         */\n        mediaQuery => this._registerQuery(mediaQuery).mql.matches));\n    }\n    /**\n     * Gets an observable of results for the given queries that will emit new results for any changes\n     * in matching of the given queries.\n     * @param {?} value One or more media queries to check.\n     * @return {?} A stream of matches for the given queries.\n     */\n    observe(value) {\n        /** @type {?} */\n        const queries = splitQueries(coerceArray(value));\n        /** @type {?} */\n        const observables = queries.map((/**\n         * @param {?} query\n         * @return {?}\n         */\n        query => this._registerQuery(query).observable));\n        /** @type {?} */\n        let stateObservable = combineLatest(observables);\n        // Emit the first state immediately, and then debounce the subsequent emissions.\n        stateObservable = concat(stateObservable.pipe(take(1)), stateObservable.pipe(skip(1), debounceTime(0)));\n        return stateObservable.pipe(map((/**\n         * @param {?} breakpointStates\n         * @return {?}\n         */\n        (breakpointStates) => {\n            /** @type {?} */\n            const response = {\n                matches: false,\n                breakpoints: {},\n            };\n            breakpointStates.forEach((/**\n             * @param {?} state\n             * @return {?}\n             */\n            (state) => {\n                response.matches = response.matches || state.matches;\n                response.breakpoints[state.query] = state.matches;\n            }));\n            return response;\n        })));\n    }\n    /**\n     * Registers a specific query to be listened for.\n     * @private\n     * @param {?} query\n     * @return {?}\n     */\n    _registerQuery(query) {\n        // Only set up a new MediaQueryList if it is not already being listened for.\n        if (this._queries.has(query)) {\n            return (/** @type {?} */ (this._queries.get(query)));\n        }\n        /** @type {?} */\n        const mql = this._mediaMatcher.matchMedia(query);\n        // Create callback for match changes and add it is as a listener.\n        /** @type {?} */\n        const queryObservable = new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            // Listener callback methods are wrapped to be placed back in ngZone. Callbacks must be placed\n            // back into the zone because matchMedia is only included in Zone.js by loading the\n            // webapis-media-query.js file alongside the zone.js file.  Additionally, some browsers do not\n            // have MediaQueryList inherit from EventTarget, which causes inconsistencies in how Zone.js\n            // patches it.\n            /** @type {?} */\n            const handler = (/**\n             * @param {?} e\n             * @return {?}\n             */\n            (e) => this._zone.run((/**\n             * @return {?}\n             */\n            () => observer.next(e))));\n            mql.addListener(handler);\n            return (/**\n             * @return {?}\n             */\n            () => {\n                mql.removeListener(handler);\n            });\n        })).pipe(startWith(mql), map((/**\n         * @param {?} nextMql\n         * @return {?}\n         */\n        (nextMql) => ({ query, matches: nextMql.matches }))), takeUntil(this._destroySubject));\n        // Add the MediaQueryList to the set of queries.\n        /** @type {?} */\n        const output = { observable: queryObservable, mql };\n        this._queries.set(query, output);\n        return output;\n    }\n}\nBreakpointObserver.ɵfac = function BreakpointObserver_Factory(t) { return new (t || BreakpointObserver)(ɵngcc0.ɵɵinject(MediaMatcher), ɵngcc0.ɵɵinject(ɵngcc0.NgZone)); };\n/** @nocollapse */\nBreakpointObserver.ctorParameters = () => [\n    { type: MediaMatcher },\n    { type: NgZone }\n];\n/** @nocollapse */ BreakpointObserver.ɵprov = ɵɵdefineInjectable({ factory: function BreakpointObserver_Factory() { return new BreakpointObserver(ɵɵinject(MediaMatcher), ɵɵinject(NgZone)); }, token: BreakpointObserver, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(BreakpointObserver, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: MediaMatcher }, { type: ɵngcc0.NgZone }]; }, null); })();\nif (false) {\n    /**\n     * A map of all media queries currently being listened for.\n     * @type {?}\n     * @private\n     */\n    BreakpointObserver.prototype._queries;\n    /**\n     * A subject for all other observables to takeUntil based on.\n     * @type {?}\n     * @private\n     */\n    BreakpointObserver.prototype._destroySubject;\n    /**\n     * @type {?}\n     * @private\n     */\n    BreakpointObserver.prototype._mediaMatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    BreakpointObserver.prototype._zone;\n}\n/**\n * Split each query string into separate query strings if two queries are provided as comma\n * separated.\n * @param {?} queries\n * @return {?}\n */\nfunction splitQueries(queries) {\n    return queries.map((/**\n     * @param {?} query\n     * @return {?}\n     */\n    (query) => query.split(',')))\n        .reduce((/**\n     * @param {?} a1\n     * @param {?} a2\n     * @return {?}\n     */\n    (a1, a2) => a1.concat(a2)))\n        .map((/**\n     * @param {?} query\n     * @return {?}\n     */\n    query => query.trim()));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/layout/breakpoints.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// PascalCase is being used as Breakpoints is used like an enum.\n// tslint:disable-next-line:variable-name\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n * @type {?}\n */\nconst Breakpoints = {\n    XSmall: '(max-width: 599.99px)',\n    Small: '(min-width: 600px) and (max-width: 959.99px)',\n    Medium: '(min-width: 960px) and (max-width: 1279.99px)',\n    Large: '(min-width: 1280px) and (max-width: 1919.99px)',\n    XLarge: '(min-width: 1920px)',\n    Handset: '(max-width: 599.99px) and (orientation: portrait), ' +\n        '(max-width: 959.99px) and (orientation: landscape)',\n    Tablet: '(min-width: 600px) and (max-width: 839.99px) and (orientation: portrait), ' +\n        '(min-width: 960px) and (max-width: 1279.99px) and (orientation: landscape)',\n    Web: '(min-width: 840px) and (orientation: portrait), ' +\n        '(min-width: 1280px) and (orientation: landscape)',\n    HandsetPortrait: '(max-width: 599.99px) and (orientation: portrait)',\n    TabletPortrait: '(min-width: 600px) and (max-width: 839.99px) and (orientation: portrait)',\n    WebPortrait: '(min-width: 840px) and (orientation: portrait)',\n    HandsetLandscape: '(max-width: 959.99px) and (orientation: landscape)',\n    TabletLandscape: '(min-width: 960px) and (max-width: 1279.99px) and (orientation: landscape)',\n    WebLandscape: '(min-width: 1280px) and (orientation: landscape)',\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/layout/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { BreakpointObserver, Breakpoints, LayoutModule, MediaMatcher };\n\n//# sourceMappingURL=layout.js.map","import { isScheduler } from '../util/isScheduler';\nimport { isArray } from '../util/isArray';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { fromArray } from './fromArray';\nconst NONE = {};\nexport function combineLatest(...observables) {\n    let resultSelector = null;\n    let scheduler = null;\n    if (isScheduler(observables[observables.length - 1])) {\n        scheduler = observables.pop();\n    }\n    if (typeof observables[observables.length - 1] === 'function') {\n        resultSelector = observables.pop();\n    }\n    if (observables.length === 1 && isArray(observables[0])) {\n        observables = observables[0];\n    }\n    return fromArray(observables, scheduler).lift(new CombineLatestOperator(resultSelector));\n}\nexport class CombineLatestOperator {\n    constructor(resultSelector) {\n        this.resultSelector = resultSelector;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));\n    }\n}\nexport class CombineLatestSubscriber extends OuterSubscriber {\n    constructor(destination, resultSelector) {\n        super(destination);\n        this.resultSelector = resultSelector;\n        this.active = 0;\n        this.values = [];\n        this.observables = [];\n    }\n    _next(observable) {\n        this.values.push(NONE);\n        this.observables.push(observable);\n    }\n    _complete() {\n        const observables = this.observables;\n        const len = observables.length;\n        if (len === 0) {\n            this.destination.complete();\n        }\n        else {\n            this.active = len;\n            this.toRespond = len;\n            for (let i = 0; i < len; i++) {\n                const observable = observables[i];\n                this.add(subscribeToResult(this, observable, observable, i));\n            }\n        }\n    }\n    notifyComplete(unused) {\n        if ((this.active -= 1) === 0) {\n            this.destination.complete();\n        }\n    }\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        const values = this.values;\n        const oldVal = values[outerIndex];\n        const toRespond = !this.toRespond\n            ? 0\n            : oldVal === NONE ? --this.toRespond : this.toRespond;\n        values[outerIndex] = innerValue;\n        if (toRespond === 0) {\n            if (this.resultSelector) {\n                this._tryResultSelector(values);\n            }\n            else {\n                this.destination.next(values.slice());\n            }\n        }\n    }\n    _tryResultSelector(values) {\n        let result;\n        try {\n            result = this.resultSelector.apply(this, values);\n        }\n        catch (err) {\n            this.destination.error(err);\n            return;\n        }\n        this.destination.next(result);\n    }\n}\n//# sourceMappingURL=combineLatest.js.map","import { Subscriber } from '../Subscriber';\nexport function skip(count) {\n    return (source) => source.lift(new SkipOperator(count));\n}\nclass SkipOperator {\n    constructor(total) {\n        this.total = total;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new SkipSubscriber(subscriber, this.total));\n    }\n}\nclass SkipSubscriber extends Subscriber {\n    constructor(destination, total) {\n        super(destination);\n        this.total = total;\n        this.count = 0;\n    }\n    _next(x) {\n        if (++this.count > this.total) {\n            this.destination.next(x);\n        }\n    }\n}\n//# sourceMappingURL=skip.js.map","import { OverlayModule, OverlayConfig, Overlay } from '@angular/cdk/overlay';\nimport { BasePortalOutlet, CdkPortalOutlet, PortalModule, PortalInjector, ComponentPortal, TemplatePortal } from '@angular/cdk/portal';\nimport { CommonModule } from '@angular/common';\nimport { InjectionToken, Component, ViewEncapsulation, ChangeDetectionStrategy, Inject, NgZone, ElementRef, ChangeDetectorRef, ViewChild, NgModule, TemplateRef, Injectable, Injector, Optional, SkipSelf, ɵɵdefineInjectable, ɵɵinject, INJECTOR } from '@angular/core';\nimport { MatCommonModule } from '@angular/material/core';\nimport { MatButtonModule } from '@angular/material/button';\nimport { Subject } from 'rxjs';\nimport { take, takeUntil } from 'rxjs/operators';\nimport { trigger, state, style, transition, animate } from '@angular/animations';\nimport { LiveAnnouncer } from '@angular/cdk/a11y';\nimport { Breakpoints, BreakpointObserver } from '@angular/cdk/layout';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/snack-bar-ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Event that is emitted when a snack bar is dismissed.\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/common';\nimport * as ɵngcc2 from '@angular/material/button';\nimport * as ɵngcc3 from '@angular/cdk/portal';\nimport * as ɵngcc4 from '@angular/cdk/overlay';\nimport * as ɵngcc5 from '@angular/cdk/a11y';\nimport * as ɵngcc6 from '@angular/cdk/layout';\n\nfunction SimpleSnackBar_div_2_Template(rf, ctx) { if (rf & 1) {\n    const _r2 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 1);\n    ɵngcc0.ɵɵelementStart(1, \"button\", 2);\n    ɵngcc0.ɵɵlistener(\"click\", function SimpleSnackBar_div_2_Template_button_click_1_listener() { ɵngcc0.ɵɵrestoreView(_r2); const ctx_r1 = ɵngcc0.ɵɵnextContext(); return ctx_r1.action(); });\n    ɵngcc0.ɵɵtext(2);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r0 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r0.data.action);\n} }\nfunction MatSnackBarContainer_ng_template_0_Template(rf, ctx) { }\nfunction MatSnackBarDismiss() { }\nif (false) {\n    /**\n     * Whether the snack bar was dismissed using the action button.\n     * @type {?}\n     */\n    MatSnackBarDismiss.prototype.dismissedByAction;\n}\n/**\n * Maximum amount of milliseconds that can be passed into setTimeout.\n * @type {?}\n */\nconst MAX_TIMEOUT = Math.pow(2, 31) - 1;\n/**\n * Reference to a snack bar dispatched from the snack bar service.\n * @template T\n */\nclass MatSnackBarRef {\n    /**\n     * @param {?} containerInstance\n     * @param {?} _overlayRef\n     */\n    constructor(containerInstance, _overlayRef) {\n        this._overlayRef = _overlayRef;\n        /**\n         * Subject for notifying the user that the snack bar has been dismissed.\n         */\n        this._afterDismissed = new Subject();\n        /**\n         * Subject for notifying the user that the snack bar has opened and appeared.\n         */\n        this._afterOpened = new Subject();\n        /**\n         * Subject for notifying the user that the snack bar action was called.\n         */\n        this._onAction = new Subject();\n        /**\n         * Whether the snack bar was dismissed using the action button.\n         */\n        this._dismissedByAction = false;\n        this.containerInstance = containerInstance;\n        // Dismiss snackbar on action.\n        this.onAction().subscribe((/**\n         * @return {?}\n         */\n        () => this.dismiss()));\n        containerInstance._onExit.subscribe((/**\n         * @return {?}\n         */\n        () => this._finishDismiss()));\n    }\n    /**\n     * Dismisses the snack bar.\n     * @return {?}\n     */\n    dismiss() {\n        if (!this._afterDismissed.closed) {\n            this.containerInstance.exit();\n        }\n        clearTimeout(this._durationTimeoutId);\n    }\n    /**\n     * Marks the snackbar action clicked.\n     * @return {?}\n     */\n    dismissWithAction() {\n        if (!this._onAction.closed) {\n            this._dismissedByAction = true;\n            this._onAction.next();\n            this._onAction.complete();\n        }\n    }\n    /**\n     * Marks the snackbar action clicked.\n     * @deprecated Use `dismissWithAction` instead.\n     * \\@breaking-change 8.0.0\n     * @return {?}\n     */\n    closeWithAction() {\n        this.dismissWithAction();\n    }\n    /**\n     * Dismisses the snack bar after some duration\n     * @param {?} duration\n     * @return {?}\n     */\n    _dismissAfter(duration) {\n        // Note that we need to cap the duration to the maximum value for setTimeout, because\n        // it'll revert to 1 if somebody passes in something greater (e.g. `Infinity`). See #17234.\n        this._durationTimeoutId = setTimeout((/**\n         * @return {?}\n         */\n        () => this.dismiss()), Math.min(duration, MAX_TIMEOUT));\n    }\n    /**\n     * Marks the snackbar as opened\n     * @return {?}\n     */\n    _open() {\n        if (!this._afterOpened.closed) {\n            this._afterOpened.next();\n            this._afterOpened.complete();\n        }\n    }\n    /**\n     * Cleans up the DOM after closing.\n     * @private\n     * @return {?}\n     */\n    _finishDismiss() {\n        this._overlayRef.dispose();\n        if (!this._onAction.closed) {\n            this._onAction.complete();\n        }\n        this._afterDismissed.next({ dismissedByAction: this._dismissedByAction });\n        this._afterDismissed.complete();\n        this._dismissedByAction = false;\n    }\n    /**\n     * Gets an observable that is notified when the snack bar is finished closing.\n     * @return {?}\n     */\n    afterDismissed() {\n        return this._afterDismissed.asObservable();\n    }\n    /**\n     * Gets an observable that is notified when the snack bar has opened and appeared.\n     * @return {?}\n     */\n    afterOpened() {\n        return this.containerInstance._onEnter;\n    }\n    /**\n     * Gets an observable that is notified when the snack bar action is called.\n     * @return {?}\n     */\n    onAction() {\n        return this._onAction.asObservable();\n    }\n}\nif (false) {\n    /**\n     * The instance of the component making up the content of the snack bar.\n     * @type {?}\n     */\n    MatSnackBarRef.prototype.instance;\n    /**\n     * The instance of the component making up the content of the snack bar.\n     * \\@docs-private\n     * @type {?}\n     */\n    MatSnackBarRef.prototype.containerInstance;\n    /**\n     * Subject for notifying the user that the snack bar has been dismissed.\n     * @type {?}\n     * @private\n     */\n    MatSnackBarRef.prototype._afterDismissed;\n    /**\n     * Subject for notifying the user that the snack bar has opened and appeared.\n     * @type {?}\n     * @private\n     */\n    MatSnackBarRef.prototype._afterOpened;\n    /**\n     * Subject for notifying the user that the snack bar action was called.\n     * @type {?}\n     * @private\n     */\n    MatSnackBarRef.prototype._onAction;\n    /**\n     * Timeout ID for the duration setTimeout call. Used to clear the timeout if the snackbar is\n     * dismissed before the duration passes.\n     * @type {?}\n     * @private\n     */\n    MatSnackBarRef.prototype._durationTimeoutId;\n    /**\n     * Whether the snack bar was dismissed using the action button.\n     * @type {?}\n     * @private\n     */\n    MatSnackBarRef.prototype._dismissedByAction;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBarRef.prototype._overlayRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/snack-bar-config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that can be used to access the data that was passed in to a snack bar.\n * @type {?}\n */\nconst MAT_SNACK_BAR_DATA = new InjectionToken('MatSnackBarData');\n/**\n * Configuration used when opening a snack-bar.\n * @template D\n */\nclass MatSnackBarConfig {\n    constructor() {\n        /**\n         * The politeness level for the MatAriaLiveAnnouncer announcement.\n         */\n        this.politeness = 'assertive';\n        /**\n         * Message to be announced by the LiveAnnouncer. When opening a snackbar without a custom\n         * component or template, the announcement message will default to the specified message.\n         */\n        this.announcementMessage = '';\n        /**\n         * The length of time in milliseconds to wait before automatically dismissing the snack bar.\n         */\n        this.duration = 0;\n        /**\n         * Data being injected into the child component.\n         */\n        this.data = null;\n        /**\n         * The horizontal position to place the snack bar.\n         */\n        this.horizontalPosition = 'center';\n        /**\n         * The vertical position to place the snack bar.\n         */\n        this.verticalPosition = 'bottom';\n    }\n}\nif (false) {\n    /**\n     * The politeness level for the MatAriaLiveAnnouncer announcement.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.politeness;\n    /**\n     * Message to be announced by the LiveAnnouncer. When opening a snackbar without a custom\n     * component or template, the announcement message will default to the specified message.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.announcementMessage;\n    /**\n     * The view container that serves as the parent for the snackbar for the purposes of dependency\n     * injection. Note: this does not affect where the snackbar is inserted in the DOM.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.viewContainerRef;\n    /**\n     * The length of time in milliseconds to wait before automatically dismissing the snack bar.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.duration;\n    /**\n     * Extra CSS classes to be added to the snack bar container.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.panelClass;\n    /**\n     * Text layout direction for the snack bar.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.direction;\n    /**\n     * Data being injected into the child component.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.data;\n    /**\n     * The horizontal position to place the snack bar.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.horizontalPosition;\n    /**\n     * The vertical position to place the snack bar.\n     * @type {?}\n     */\n    MatSnackBarConfig.prototype.verticalPosition;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/simple-snack-bar.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * A component used to open as the default snack bar, matching material spec.\n * This should only be used internally by the snack bar service.\n */\nclass SimpleSnackBar {\n    /**\n     * @param {?} snackBarRef\n     * @param {?} data\n     */\n    constructor(snackBarRef, data) {\n        this.snackBarRef = snackBarRef;\n        this.data = data;\n    }\n    /**\n     * Performs the action on the snack bar.\n     * @return {?}\n     */\n    action() {\n        this.snackBarRef.dismissWithAction();\n    }\n    /**\n     * If the action button should be shown.\n     * @return {?}\n     */\n    get hasAction() {\n        return !!this.data.action;\n    }\n}\nSimpleSnackBar.ɵfac = function SimpleSnackBar_Factory(t) { return new (t || SimpleSnackBar)(ɵngcc0.ɵɵdirectiveInject(MatSnackBarRef), ɵngcc0.ɵɵdirectiveInject(MAT_SNACK_BAR_DATA)); };\nSimpleSnackBar.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: SimpleSnackBar, selectors: [[\"simple-snack-bar\"]], hostAttrs: [1, \"mat-simple-snackbar\"], decls: 3, vars: 2, consts: [[\"class\", \"mat-simple-snackbar-action\", 4, \"ngIf\"], [1, \"mat-simple-snackbar-action\"], [\"mat-button\", \"\", 3, \"click\"]], template: function SimpleSnackBar_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵelementStart(0, \"span\");\n        ɵngcc0.ɵɵtext(1);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵtemplate(2, SimpleSnackBar_div_2_Template, 3, 1, \"div\", 0);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵtextInterpolate(ctx.data.message);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.hasAction);\n    } }, directives: [ɵngcc1.NgIf, ɵngcc2.MatButton], styles: [\".mat-simple-snackbar{display:flex;justify-content:space-between;align-items:center;line-height:20px;opacity:1}.mat-simple-snackbar-action{flex-shrink:0;margin:-8px -8px -8px 8px}.mat-simple-snackbar-action button{max-height:36px;min-width:0}[dir=rtl] .mat-simple-snackbar-action{margin-left:-8px;margin-right:8px}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nSimpleSnackBar.ctorParameters = () => [\n    { type: MatSnackBarRef },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_SNACK_BAR_DATA,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(SimpleSnackBar, [{\n        type: Component,\n        args: [{\n                selector: 'simple-snack-bar',\n                template: \"<span>{{data.message}}</span>\\n<div class=\\\"mat-simple-snackbar-action\\\"  *ngIf=\\\"hasAction\\\">\\n  <button mat-button (click)=\\\"action()\\\">{{data.action}}</button>\\n</div>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                host: {\n                    'class': 'mat-simple-snackbar'\n                },\n                styles: [\".mat-simple-snackbar{display:flex;justify-content:space-between;align-items:center;line-height:20px;opacity:1}.mat-simple-snackbar-action{flex-shrink:0;margin:-8px -8px -8px 8px}.mat-simple-snackbar-action button{max-height:36px;min-width:0}[dir=rtl] .mat-simple-snackbar-action{margin-left:-8px;margin-right:8px}\\n\"]\n            }]\n    }], function () { return [{ type: MatSnackBarRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_SNACK_BAR_DATA]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * Data that was injected into the snack bar.\n     * @type {?}\n     */\n    SimpleSnackBar.prototype.data;\n    /** @type {?} */\n    SimpleSnackBar.prototype.snackBarRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/snack-bar-animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Animations used by the Material snack bar.\n * \\@docs-private\n * @type {?}\n */\nconst matSnackBarAnimations = {\n    /**\n     * Animation that shows and hides a snack bar.\n     */\n    snackBarState: trigger('state', [\n        state('void, hidden', style({\n            transform: 'scale(0.8)',\n            opacity: 0,\n        })),\n        state('visible', style({\n            transform: 'scale(1)',\n            opacity: 1,\n        })),\n        transition('* => visible', animate('150ms cubic-bezier(0, 0, 0.2, 1)')),\n        transition('* => void, * => hidden', animate('75ms cubic-bezier(0.4, 0.0, 1, 1)', style({\n            opacity: 0\n        }))),\n    ])\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/snack-bar-container.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Internal component that wraps user-provided snack bar content.\n * \\@docs-private\n */\nclass MatSnackBarContainer extends BasePortalOutlet {\n    /**\n     * @param {?} _ngZone\n     * @param {?} _elementRef\n     * @param {?} _changeDetectorRef\n     * @param {?} snackBarConfig\n     */\n    constructor(_ngZone, _elementRef, _changeDetectorRef, snackBarConfig) {\n        super();\n        this._ngZone = _ngZone;\n        this._elementRef = _elementRef;\n        this._changeDetectorRef = _changeDetectorRef;\n        this.snackBarConfig = snackBarConfig;\n        /**\n         * Whether the component has been destroyed.\n         */\n        this._destroyed = false;\n        /**\n         * Subject for notifying that the snack bar has exited from view.\n         */\n        this._onExit = new Subject();\n        /**\n         * Subject for notifying that the snack bar has finished entering the view.\n         */\n        this._onEnter = new Subject();\n        /**\n         * The state of the snack bar animations.\n         */\n        this._animationState = 'void';\n        /**\n         * Attaches a DOM portal to the snack bar container.\n         * @deprecated To be turned into a method.\n         * \\@breaking-change 10.0.0\n         */\n        this.attachDomPortal = (/**\n         * @param {?} portal\n         * @return {?}\n         */\n        (portal) => {\n            this._assertNotAttached();\n            this._applySnackBarClasses();\n            return this._portalOutlet.attachDomPortal(portal);\n        });\n        // Based on the ARIA spec, `alert` and `status` roles have an\n        // implicit `assertive` and `polite` politeness respectively.\n        if (snackBarConfig.politeness === 'assertive' && !snackBarConfig.announcementMessage) {\n            this._role = 'alert';\n        }\n        else if (snackBarConfig.politeness === 'off') {\n            this._role = null;\n        }\n        else {\n            this._role = 'status';\n        }\n    }\n    /**\n     * Attach a component portal as content to this snack bar container.\n     * @template T\n     * @param {?} portal\n     * @return {?}\n     */\n    attachComponentPortal(portal) {\n        this._assertNotAttached();\n        this._applySnackBarClasses();\n        return this._portalOutlet.attachComponentPortal(portal);\n    }\n    /**\n     * Attach a template portal as content to this snack bar container.\n     * @template C\n     * @param {?} portal\n     * @return {?}\n     */\n    attachTemplatePortal(portal) {\n        this._assertNotAttached();\n        this._applySnackBarClasses();\n        return this._portalOutlet.attachTemplatePortal(portal);\n    }\n    /**\n     * Handle end of animations, updating the state of the snackbar.\n     * @param {?} event\n     * @return {?}\n     */\n    onAnimationEnd(event) {\n        const { fromState, toState } = event;\n        if ((toState === 'void' && fromState !== 'void') || toState === 'hidden') {\n            this._completeExit();\n        }\n        if (toState === 'visible') {\n            // Note: we shouldn't use `this` inside the zone callback,\n            // because it can cause a memory leak.\n            /** @type {?} */\n            const onEnter = this._onEnter;\n            this._ngZone.run((/**\n             * @return {?}\n             */\n            () => {\n                onEnter.next();\n                onEnter.complete();\n            }));\n        }\n    }\n    /**\n     * Begin animation of snack bar entrance into view.\n     * @return {?}\n     */\n    enter() {\n        if (!this._destroyed) {\n            this._animationState = 'visible';\n            this._changeDetectorRef.detectChanges();\n        }\n    }\n    /**\n     * Begin animation of the snack bar exiting from view.\n     * @return {?}\n     */\n    exit() {\n        // Note: this one transitions to `hidden`, rather than `void`, in order to handle the case\n        // where multiple snack bars are opened in quick succession (e.g. two consecutive calls to\n        // `MatSnackBar.open`).\n        this._animationState = 'hidden';\n        // Mark this element with an 'exit' attribute to indicate that the snackbar has\n        // been dismissed and will soon be removed from the DOM. This is used by the snackbar\n        // test harness.\n        this._elementRef.nativeElement.setAttribute('mat-exit', '');\n        return this._onExit;\n    }\n    /**\n     * Makes sure the exit callbacks have been invoked when the element is destroyed.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._destroyed = true;\n        this._completeExit();\n    }\n    /**\n     * Waits for the zone to settle before removing the element. Helps prevent\n     * errors where we end up removing an element which is in the middle of an animation.\n     * @private\n     * @return {?}\n     */\n    _completeExit() {\n        this._ngZone.onMicrotaskEmpty.asObservable().pipe(take(1)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._onExit.next();\n            this._onExit.complete();\n        }));\n    }\n    /**\n     * Applies the various positioning and user-configured CSS classes to the snack bar.\n     * @private\n     * @return {?}\n     */\n    _applySnackBarClasses() {\n        /** @type {?} */\n        const element = this._elementRef.nativeElement;\n        /** @type {?} */\n        const panelClasses = this.snackBarConfig.panelClass;\n        if (panelClasses) {\n            if (Array.isArray(panelClasses)) {\n                // Note that we can't use a spread here, because IE doesn't support multiple arguments.\n                panelClasses.forEach((/**\n                 * @param {?} cssClass\n                 * @return {?}\n                 */\n                cssClass => element.classList.add(cssClass)));\n            }\n            else {\n                element.classList.add(panelClasses);\n            }\n        }\n        if (this.snackBarConfig.horizontalPosition === 'center') {\n            element.classList.add('mat-snack-bar-center');\n        }\n        if (this.snackBarConfig.verticalPosition === 'top') {\n            element.classList.add('mat-snack-bar-top');\n        }\n    }\n    /**\n     * Asserts that no content is already attached to the container.\n     * @private\n     * @return {?}\n     */\n    _assertNotAttached() {\n        if (this._portalOutlet.hasAttached()) {\n            throw Error('Attempting to attach snack bar content after content is already attached');\n        }\n    }\n}\nMatSnackBarContainer.ɵfac = function MatSnackBarContainer_Factory(t) { return new (t || MatSnackBarContainer)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(MatSnackBarConfig)); };\nMatSnackBarContainer.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatSnackBarContainer, selectors: [[\"snack-bar-container\"]], viewQuery: function MatSnackBarContainer_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵstaticViewQuery(CdkPortalOutlet, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._portalOutlet = _t.first);\n    } }, hostAttrs: [1, \"mat-snack-bar-container\"], hostVars: 2, hostBindings: function MatSnackBarContainer_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵcomponentHostSyntheticListener(\"@state.done\", function MatSnackBarContainer_animation_state_done_HostBindingHandler($event) { return ctx.onAnimationEnd($event); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"role\", ctx._role);\n        ɵngcc0.ɵɵupdateSyntheticHostBinding(\"@state\", ctx._animationState);\n    } }, features: [ɵngcc0.ɵɵInheritDefinitionFeature], decls: 1, vars: 0, consts: [[\"cdkPortalOutlet\", \"\"]], template: function MatSnackBarContainer_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵtemplate(0, MatSnackBarContainer_ng_template_0_Template, 0, 0, \"ng-template\", 0);\n    } }, directives: [ɵngcc3.CdkPortalOutlet], styles: [\".mat-snack-bar-container{border-radius:4px;box-sizing:border-box;display:block;margin:24px;max-width:33vw;min-width:344px;padding:14px 16px;min-height:48px;transform-origin:center}.cdk-high-contrast-active .mat-snack-bar-container{border:solid 1px}.mat-snack-bar-handset{width:100%}.mat-snack-bar-handset .mat-snack-bar-container{margin:8px;max-width:100%;min-width:0;width:100%}\\n\"], encapsulation: 2, data: { animation: [matSnackBarAnimations.snackBarState] } });\n/** @nocollapse */\nMatSnackBarContainer.ctorParameters = () => [\n    { type: NgZone },\n    { type: ElementRef },\n    { type: ChangeDetectorRef },\n    { type: MatSnackBarConfig }\n];\nMatSnackBarContainer.propDecorators = {\n    _portalOutlet: [{ type: ViewChild, args: [CdkPortalOutlet, { static: true },] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSnackBarContainer, [{\n        type: Component,\n        args: [{\n                selector: 'snack-bar-container',\n                template: \"<ng-template cdkPortalOutlet></ng-template>\\n\",\n                // In Ivy embedded views will be change detected from their declaration place, rather than\n                // where they were stamped out. This means that we can't have the snack bar container be OnPush,\n                // because it might cause snack bars that were opened from a template not to be out of date.\n                // tslint:disable-next-line:validate-decorators\n                changeDetection: ChangeDetectionStrategy.Default,\n                encapsulation: ViewEncapsulation.None,\n                animations: [matSnackBarAnimations.snackBarState],\n                host: {\n                    '[attr.role]': '_role',\n                    'class': 'mat-snack-bar-container',\n                    '[@state]': '_animationState',\n                    '(@state.done)': 'onAnimationEnd($event)'\n                },\n                styles: [\".mat-snack-bar-container{border-radius:4px;box-sizing:border-box;display:block;margin:24px;max-width:33vw;min-width:344px;padding:14px 16px;min-height:48px;transform-origin:center}.cdk-high-contrast-active .mat-snack-bar-container{border:solid 1px}.mat-snack-bar-handset{width:100%}.mat-snack-bar-handset .mat-snack-bar-container{margin:8px;max-width:100%;min-width:0;width:100%}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.NgZone }, { type: ɵngcc0.ElementRef }, { type: ɵngcc0.ChangeDetectorRef }, { type: MatSnackBarConfig }]; }, { _portalOutlet: [{\n            type: ViewChild,\n            args: [CdkPortalOutlet, { static: true }]\n        }] }); })();\nif (false) {\n    /**\n     * Whether the component has been destroyed.\n     * @type {?}\n     * @private\n     */\n    MatSnackBarContainer.prototype._destroyed;\n    /**\n     * The portal outlet inside of this container into which the snack bar content will be loaded.\n     * @type {?}\n     */\n    MatSnackBarContainer.prototype._portalOutlet;\n    /**\n     * Subject for notifying that the snack bar has exited from view.\n     * @type {?}\n     */\n    MatSnackBarContainer.prototype._onExit;\n    /**\n     * Subject for notifying that the snack bar has finished entering the view.\n     * @type {?}\n     */\n    MatSnackBarContainer.prototype._onEnter;\n    /**\n     * The state of the snack bar animations.\n     * @type {?}\n     */\n    MatSnackBarContainer.prototype._animationState;\n    /**\n     * ARIA role for the snack bar container.\n     * @type {?}\n     */\n    MatSnackBarContainer.prototype._role;\n    /**\n     * Attaches a DOM portal to the snack bar container.\n     * @deprecated To be turned into a method.\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     */\n    MatSnackBarContainer.prototype.attachDomPortal;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBarContainer.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBarContainer.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBarContainer.prototype._changeDetectorRef;\n    /**\n     * The snack bar configuration.\n     * @type {?}\n     */\n    MatSnackBarContainer.prototype.snackBarConfig;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/snack-bar-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatSnackBarModule {\n}\nMatSnackBarModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatSnackBarModule });\nMatSnackBarModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatSnackBarModule_Factory(t) { return new (t || MatSnackBarModule)(); }, imports: [[\n            OverlayModule,\n            PortalModule,\n            CommonModule,\n            MatButtonModule,\n            MatCommonModule,\n        ], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatSnackBarModule, { declarations: function () { return [MatSnackBarContainer, SimpleSnackBar]; }, imports: function () { return [OverlayModule,\n        PortalModule,\n        CommonModule,\n        MatButtonModule,\n        MatCommonModule]; }, exports: function () { return [MatSnackBarContainer, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSnackBarModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    OverlayModule,\n                    PortalModule,\n                    CommonModule,\n                    MatButtonModule,\n                    MatCommonModule,\n                ],\n                exports: [MatSnackBarContainer, MatCommonModule],\n                declarations: [MatSnackBarContainer, SimpleSnackBar],\n                entryComponents: [MatSnackBarContainer, SimpleSnackBar]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/snack-bar.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that can be used to specify default snack bar.\n * @type {?}\n */\nconst MAT_SNACK_BAR_DEFAULT_OPTIONS = new InjectionToken('mat-snack-bar-default-options', {\n    providedIn: 'root',\n    factory: MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY,\n});\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY() {\n    return new MatSnackBarConfig();\n}\n/**\n * Service to dispatch Material Design snack bar messages.\n */\nclass MatSnackBar {\n    /**\n     * @param {?} _overlay\n     * @param {?} _live\n     * @param {?} _injector\n     * @param {?} _breakpointObserver\n     * @param {?} _parentSnackBar\n     * @param {?} _defaultConfig\n     */\n    constructor(_overlay, _live, _injector, _breakpointObserver, _parentSnackBar, _defaultConfig) {\n        this._overlay = _overlay;\n        this._live = _live;\n        this._injector = _injector;\n        this._breakpointObserver = _breakpointObserver;\n        this._parentSnackBar = _parentSnackBar;\n        this._defaultConfig = _defaultConfig;\n        /**\n         * Reference to the current snack bar in the view *at this level* (in the Angular injector tree).\n         * If there is a parent snack-bar service, all operations should delegate to that parent\n         * via `_openedSnackBarRef`.\n         */\n        this._snackBarRefAtThisLevel = null;\n    }\n    /**\n     * Reference to the currently opened snackbar at *any* level.\n     * @return {?}\n     */\n    get _openedSnackBarRef() {\n        /** @type {?} */\n        const parent = this._parentSnackBar;\n        return parent ? parent._openedSnackBarRef : this._snackBarRefAtThisLevel;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set _openedSnackBarRef(value) {\n        if (this._parentSnackBar) {\n            this._parentSnackBar._openedSnackBarRef = value;\n        }\n        else {\n            this._snackBarRefAtThisLevel = value;\n        }\n    }\n    /**\n     * Creates and dispatches a snack bar with a custom component for the content, removing any\n     * currently opened snack bars.\n     *\n     * @template T\n     * @param {?} component Component to be instantiated.\n     * @param {?=} config Extra configuration for the snack bar.\n     * @return {?}\n     */\n    openFromComponent(component, config) {\n        return (/** @type {?} */ (this._attach(component, config)));\n    }\n    /**\n     * Creates and dispatches a snack bar with a custom template for the content, removing any\n     * currently opened snack bars.\n     *\n     * @param {?} template Template to be instantiated.\n     * @param {?=} config Extra configuration for the snack bar.\n     * @return {?}\n     */\n    openFromTemplate(template, config) {\n        return this._attach(template, config);\n    }\n    /**\n     * Opens a snackbar with a message and an optional action.\n     * @param {?} message The message to show in the snackbar.\n     * @param {?=} action The label for the snackbar action.\n     * @param {?=} config Additional configuration options for the snackbar.\n     * @return {?}\n     */\n    open(message, action = '', config) {\n        /** @type {?} */\n        const _config = Object.assign(Object.assign({}, this._defaultConfig), config);\n        // Since the user doesn't have access to the component, we can\n        // override the data to pass in our own message and action.\n        _config.data = { message, action };\n        if (!_config.announcementMessage) {\n            _config.announcementMessage = message;\n        }\n        return this.openFromComponent(SimpleSnackBar, _config);\n    }\n    /**\n     * Dismisses the currently-visible snack bar.\n     * @return {?}\n     */\n    dismiss() {\n        if (this._openedSnackBarRef) {\n            this._openedSnackBarRef.dismiss();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        // Only dismiss the snack bar at the current level on destroy.\n        if (this._snackBarRefAtThisLevel) {\n            this._snackBarRefAtThisLevel.dismiss();\n        }\n    }\n    /**\n     * Attaches the snack bar container component to the overlay.\n     * @private\n     * @param {?} overlayRef\n     * @param {?} config\n     * @return {?}\n     */\n    _attachSnackBarContainer(overlayRef, config) {\n        /** @type {?} */\n        const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n        /** @type {?} */\n        const injector = new PortalInjector(userInjector || this._injector, new WeakMap([\n            [MatSnackBarConfig, config]\n        ]));\n        /** @type {?} */\n        const containerPortal = new ComponentPortal(MatSnackBarContainer, config.viewContainerRef, injector);\n        /** @type {?} */\n        const containerRef = overlayRef.attach(containerPortal);\n        containerRef.instance.snackBarConfig = config;\n        return containerRef.instance;\n    }\n    /**\n     * Places a new component or a template as the content of the snack bar container.\n     * @private\n     * @template T\n     * @param {?} content\n     * @param {?=} userConfig\n     * @return {?}\n     */\n    _attach(content, userConfig) {\n        /** @type {?} */\n        const config = Object.assign(Object.assign(Object.assign({}, new MatSnackBarConfig()), this._defaultConfig), userConfig);\n        /** @type {?} */\n        const overlayRef = this._createOverlay(config);\n        /** @type {?} */\n        const container = this._attachSnackBarContainer(overlayRef, config);\n        /** @type {?} */\n        const snackBarRef = new MatSnackBarRef(container, overlayRef);\n        if (content instanceof TemplateRef) {\n            /** @type {?} */\n            const portal = new TemplatePortal(content, (/** @type {?} */ (null)), (/** @type {?} */ ({\n                $implicit: config.data,\n                snackBarRef\n            })));\n            snackBarRef.instance = container.attachTemplatePortal(portal);\n        }\n        else {\n            /** @type {?} */\n            const injector = this._createInjector(config, snackBarRef);\n            /** @type {?} */\n            const portal = new ComponentPortal(content, undefined, injector);\n            /** @type {?} */\n            const contentRef = container.attachComponentPortal(portal);\n            // We can't pass this via the injector, because the injector is created earlier.\n            snackBarRef.instance = contentRef.instance;\n        }\n        // Subscribe to the breakpoint observer and attach the mat-snack-bar-handset class as\n        // appropriate. This class is applied to the overlay element because the overlay must expand to\n        // fill the width of the screen for full width snackbars.\n        this._breakpointObserver.observe(Breakpoints.HandsetPortrait).pipe(takeUntil(overlayRef.detachments())).subscribe((/**\n         * @param {?} state\n         * @return {?}\n         */\n        state => {\n            /** @type {?} */\n            const classList = overlayRef.overlayElement.classList;\n            /** @type {?} */\n            const className = 'mat-snack-bar-handset';\n            state.matches ? classList.add(className) : classList.remove(className);\n        }));\n        this._animateSnackBar(snackBarRef, config);\n        this._openedSnackBarRef = snackBarRef;\n        return this._openedSnackBarRef;\n    }\n    /**\n     * Animates the old snack bar out and the new one in.\n     * @private\n     * @param {?} snackBarRef\n     * @param {?} config\n     * @return {?}\n     */\n    _animateSnackBar(snackBarRef, config) {\n        // When the snackbar is dismissed, clear the reference to it.\n        snackBarRef.afterDismissed().subscribe((/**\n         * @return {?}\n         */\n        () => {\n            // Clear the snackbar ref if it hasn't already been replaced by a newer snackbar.\n            if (this._openedSnackBarRef == snackBarRef) {\n                this._openedSnackBarRef = null;\n            }\n            if (config.announcementMessage) {\n                this._live.clear();\n            }\n        }));\n        if (this._openedSnackBarRef) {\n            // If a snack bar is already in view, dismiss it and enter the\n            // new snack bar after exit animation is complete.\n            this._openedSnackBarRef.afterDismissed().subscribe((/**\n             * @return {?}\n             */\n            () => {\n                snackBarRef.containerInstance.enter();\n            }));\n            this._openedSnackBarRef.dismiss();\n        }\n        else {\n            // If no snack bar is in view, enter the new snack bar.\n            snackBarRef.containerInstance.enter();\n        }\n        // If a dismiss timeout is provided, set up dismiss based on after the snackbar is opened.\n        if (config.duration && config.duration > 0) {\n            snackBarRef.afterOpened().subscribe((/**\n             * @return {?}\n             */\n            () => snackBarRef._dismissAfter((/** @type {?} */ (config.duration)))));\n        }\n        if (config.announcementMessage) {\n            this._live.announce(config.announcementMessage, config.politeness);\n        }\n    }\n    /**\n     * Creates a new overlay and places it in the correct location.\n     * @private\n     * @param {?} config The user-specified snack bar config.\n     * @return {?}\n     */\n    _createOverlay(config) {\n        /** @type {?} */\n        const overlayConfig = new OverlayConfig();\n        overlayConfig.direction = config.direction;\n        /** @type {?} */\n        let positionStrategy = this._overlay.position().global();\n        // Set horizontal position.\n        /** @type {?} */\n        const isRtl = config.direction === 'rtl';\n        /** @type {?} */\n        const isLeft = (config.horizontalPosition === 'left' ||\n            (config.horizontalPosition === 'start' && !isRtl) ||\n            (config.horizontalPosition === 'end' && isRtl));\n        /** @type {?} */\n        const isRight = !isLeft && config.horizontalPosition !== 'center';\n        if (isLeft) {\n            positionStrategy.left('0');\n        }\n        else if (isRight) {\n            positionStrategy.right('0');\n        }\n        else {\n            positionStrategy.centerHorizontally();\n        }\n        // Set horizontal position.\n        if (config.verticalPosition === 'top') {\n            positionStrategy.top('0');\n        }\n        else {\n            positionStrategy.bottom('0');\n        }\n        overlayConfig.positionStrategy = positionStrategy;\n        return this._overlay.create(overlayConfig);\n    }\n    /**\n     * Creates an injector to be used inside of a snack bar component.\n     * @private\n     * @template T\n     * @param {?} config Config that was used to create the snack bar.\n     * @param {?} snackBarRef Reference to the snack bar.\n     * @return {?}\n     */\n    _createInjector(config, snackBarRef) {\n        /** @type {?} */\n        const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n        return new PortalInjector(userInjector || this._injector, new WeakMap([\n            [MatSnackBarRef, snackBarRef],\n            [MAT_SNACK_BAR_DATA, config.data]\n        ]));\n    }\n}\nMatSnackBar.ɵfac = function MatSnackBar_Factory(t) { return new (t || MatSnackBar)(ɵngcc0.ɵɵinject(ɵngcc4.Overlay), ɵngcc0.ɵɵinject(ɵngcc5.LiveAnnouncer), ɵngcc0.ɵɵinject(ɵngcc0.Injector), ɵngcc0.ɵɵinject(ɵngcc6.BreakpointObserver), ɵngcc0.ɵɵinject(MatSnackBar, 12), ɵngcc0.ɵɵinject(MAT_SNACK_BAR_DEFAULT_OPTIONS)); };\n/** @nocollapse */\nMatSnackBar.ctorParameters = () => [\n    { type: Overlay },\n    { type: LiveAnnouncer },\n    { type: Injector },\n    { type: BreakpointObserver },\n    { type: MatSnackBar, decorators: [{ type: Optional }, { type: SkipSelf }] },\n    { type: MatSnackBarConfig, decorators: [{ type: Inject, args: [MAT_SNACK_BAR_DEFAULT_OPTIONS,] }] }\n];\n/** @nocollapse */ MatSnackBar.ɵprov = ɵɵdefineInjectable({ factory: function MatSnackBar_Factory() { return new MatSnackBar(ɵɵinject(Overlay), ɵɵinject(LiveAnnouncer), ɵɵinject(INJECTOR), ɵɵinject(BreakpointObserver), ɵɵinject(MatSnackBar, 12), ɵɵinject(MAT_SNACK_BAR_DEFAULT_OPTIONS)); }, token: MatSnackBar, providedIn: MatSnackBarModule });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSnackBar, [{\n        type: Injectable,\n        args: [{ providedIn: MatSnackBarModule }]\n    }], function () { return [{ type: ɵngcc4.Overlay }, { type: ɵngcc5.LiveAnnouncer }, { type: ɵngcc0.Injector }, { type: ɵngcc6.BreakpointObserver }, { type: MatSnackBar, decorators: [{\n                type: Optional\n            }, {\n                type: SkipSelf\n            }] }, { type: MatSnackBarConfig, decorators: [{\n                type: Inject,\n                args: [MAT_SNACK_BAR_DEFAULT_OPTIONS]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * Reference to the current snack bar in the view *at this level* (in the Angular injector tree).\n     * If there is a parent snack-bar service, all operations should delegate to that parent\n     * via `_openedSnackBarRef`.\n     * @type {?}\n     * @private\n     */\n    MatSnackBar.prototype._snackBarRefAtThisLevel;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBar.prototype._overlay;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBar.prototype._live;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBar.prototype._injector;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBar.prototype._breakpointObserver;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBar.prototype._parentSnackBar;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSnackBar.prototype._defaultConfig;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/snack-bar/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_SNACK_BAR_DATA, MAT_SNACK_BAR_DEFAULT_OPTIONS, MAT_SNACK_BAR_DEFAULT_OPTIONS_FACTORY, MatSnackBar, MatSnackBarConfig, MatSnackBarContainer, MatSnackBarModule, MatSnackBarRef, SimpleSnackBar, matSnackBarAnimations };\n\n//# sourceMappingURL=snack-bar.js.map","import {Injectable} from '@angular/core';\nimport {HistoryItem} from './history-item.interface';\nimport {Image} from 'fabric/fabric-impl';\nimport {CanvasService} from '../canvas/canvas.service';\nimport {ActiveObjectService} from '../canvas/active-object/active-object.service';\nimport {ObjectListService} from '../objects/object-list.service';\nimport {FrameToolService} from '../tools/frame/frame-tool.service';\nimport {DEFAULT_SERIALIZED_EDITOR_STATE, SerializedCanvas} from './serialized-canvas';\nimport {TextToolService} from '../tools/text/text-tool.service';\nimport {GoogleFontsPanelService} from '../../image-editor-ui/toolbar-controls/widgets/google-fonts-panel/google-fonts-panel.service';\nimport {Actions, Store} from '@ngxs/store';\nimport {HistoryState} from '../../image-editor-ui/state/history/history.state';\nimport {\n    AddHistoryItem,\n    HistoryChanged,\n    ReplaceCurrentItem,\n    ResetHistory,\n    UpdatePointerById\n} from '../../image-editor-ui/state/history/history.actions';\nimport {HistoryNames} from './history-names.enum';\nimport {staticObjectConfig} from '../objects/static-object-config';\nimport {filter, skip} from 'rxjs/operators';\nimport {Settings} from '@common/core/config/settings.service';\nimport {randomString} from '@common/core/utils/random-string';\n\n@Injectable()\nexport class HistoryToolService {\n    constructor(\n        public canvas: CanvasService,\n        private activeObject: ActiveObjectService,\n        private objects: ObjectListService,\n        private frameTool: FrameToolService,\n        private googleFonts: GoogleFontsPanelService,\n        private textTool: TextToolService,\n        private store: Store,\n        private actions$: Actions,\n        private settings: Settings,\n    ) {\n        this.canvas.state.contentLoadingState$.pipe(\n            filter(s => (s.name === 'mainImage' || s.name === 'blank') && s.loading === false),\n        ).subscribe((s) => {\n            this.addInitial();\n        });\n    }\n\n    public undo() {\n        if (!this.canUndo()) return;\n        return this.load(this.store.selectSnapshot(HistoryState.item('previous')));\n    }\n\n    public redo() {\n        if (!this.canRedo()) return;\n        return this.load(this.store.selectSnapshot(HistoryState.item('next')));\n    }\n\n    public canUndo(): boolean {\n      return this.store.selectSnapshot(HistoryState.canUndo);\n    }\n\n    public canRedo(): boolean {\n      return this.store.selectSnapshot(HistoryState.canRedo);\n    }\n\n    /**\n     * Reload current history state, getting rid of\n     * any canvas changes that were not yet applied.\n     */\n    public reload() {\n        return this.load(this.store.selectSnapshot(HistoryState.item('current')));\n    }\n\n    /**\n     * Replace current history item with current canvas state.\n     */\n    public replaceCurrent() {\n        const current = this.store.selectSnapshot(HistoryState.item('current'));\n        this.store.dispatch(new ReplaceCurrentItem(this.createHistoryItem(current.name, current.icon)));\n    }\n\n    public add(params: {name: string, icon: string}, json?: SerializedCanvas) {\n        this.store.dispatch(new AddHistoryItem(this.createHistoryItem(params.name, params.icon, json)));\n    }\n\n    public addFromJson(json: string|SerializedCanvas) {\n        const initial = !this.store.selectSnapshot(HistoryState.items).length,\n            name = initial ? HistoryNames.INITIAL : HistoryNames.LOADED_STATE;\n        this.add(name, typeof json === 'string' ? JSON.parse(json) : json);\n        return this.reload();\n    }\n\n    public getCurrentCanvasState(customProps: string[] = []): SerializedCanvas {\n        customProps = [...Object.keys(staticObjectConfig), 'crossOrigin', 'name', 'displayName', 'data', 'activeFont', ...customProps];\n        const canvas = this.canvas.fabric().toJSON(customProps) as any;\n        canvas.objects.forEach(obj => {\n            if (obj.type === 'image' && this.settings.get('pixie.crossOrigin')) {\n                obj.crossOrigin = 'anonymous';\n            }\n            // text is not selectable/movable when saving\n            // state without first moving the text object\n            if (obj.type === 'i-text') {\n                obj.selectable = true;\n                obj.lockMovementX = false;\n                obj.lockMovementY = false;\n                obj.lockUniScaling = false;\n            }\n        });\n        return {\n            canvas: canvas,\n            editor: {frame: this.frameTool.getActive(), fonts: this.textTool.getUsedFonts()},\n            canvasWidth: this.canvas.state.original.width,\n            canvasHeight: this.canvas.state.original.height,\n        };\n    }\n\n    public clear() {\n        this.store.dispatch(new ResetHistory());\n    }\n\n    public addInitial() {\n        const historyEmpty = !this.store.selectSnapshot(HistoryState.items).length;\n        if (historyEmpty) {\n            this.add(HistoryNames.INITIAL);\n        }\n    }\n\n    public load(item: HistoryItem): Promise<any> {\n       return new Promise(resolve => {\n           this.store.dispatch(new UpdatePointerById(item.id));\n           item.editor = item.editor || DEFAULT_SERIALIZED_EDITOR_STATE;\n           this.googleFonts.loadIntoDom(item.editor.fonts).then(() => {\n               this.canvas.fabric().loadFromJSON(item.canvas || item.state, () => {\n                   this.canvas.zoom.set(1);\n\n                   // resize canvas if needed\n                   if (item.canvasWidth && item.canvasHeight) {\n                       this.canvas.resize(item.canvasWidth, item.canvasHeight);\n                   }\n\n                   // init or remove canvas frame\n                   if (item.editor.frame) {\n                       this.frameTool.add(item.editor.frame.name);\n                   } else {\n                       this.frameTool.remove();\n                   }\n\n                   // prepare fabric.js and canvas\n                   this.canvas.render();\n                   this.canvas.fabric().calcOffset();\n                   this.canvas.zoom.fitToScreen();\n\n                   this.objects.syncObjects();\n                   this.store.dispatch(new HistoryChanged());\n                   resolve();\n               }, obj => {\n                   // reapply any filters object used to have\n                   if (obj.hasOwnProperty('applyFilters')) {\n                       (obj as Image).applyFilters();\n                   }\n               });\n           });\n       });\n    }\n\n    public getAllItems() {\n        return this.store.selectSnapshot(HistoryState.items);\n    }\n\n    private createHistoryItem(name: string, icon: string|null = null, state?: SerializedCanvas): HistoryItem {\n        if ( ! state) state = this.getCurrentCanvasState();\n\n        return Object.assign(state, {\n            name: name,\n            id: randomString(15),\n            icon: icon,\n            zoom: this.canvas.zoom.get(),\n            activeObjectId: this.activeObject.getId(),\n        });\n    }\n}\n","import {Injectable} from '@angular/core';\nimport {fabric} from 'fabric';\nimport {CanvasService} from '../../canvas/canvas.service';\nimport {IText, ITextOptions} from 'fabric/fabric-impl';\nimport {ActiveObjectService} from '../../canvas/active-object/active-object.service';\nimport {ObjectListService} from '../../objects/object-list.service';\nimport {FontItem} from '../../../image-editor-ui/toolbar-controls/widgets/google-fonts-panel/font-item';\nimport {ObjectNames} from '../../objects/object-names.enum';\nimport {normalizeObjectProps, PixieObjOptions} from '../../utils/normalize-object-props';\nimport {FontsPaginatorService} from '../../../image-editor-ui/toolbar-controls/widgets/google-fonts-panel/fonts-paginator.service';\nimport {Settings} from '@common/core/config/settings.service';\n\n@Injectable()\nexport class TextToolService {\n    private readonly minWidth: number = 250;\n\n    constructor(\n        private canvas: CanvasService,\n        private activeObject: ActiveObjectService,\n        private objects: ObjectListService,\n        private config: Settings,\n        private fontsPaginator: FontsPaginatorService,\n    ) {}\n\n    public add(text = null, providedConfig: ITextOptions = {}) {\n        text = text || this.config.get('pixie.tools.text.defaultText');\n\n        const options = normalizeObjectProps({\n            ...this.activeObject.form.value,\n            ...this.config.get('pixie.objectDefaults.text'),\n            ...providedConfig,\n            name: ObjectNames.text.name,\n        });\n\n        const itext = new fabric.IText(text, options);\n        this.canvas.fabric().add(itext);\n        this.autoPositionText(itext);\n\n        this.canvas.fabric().setActiveObject(itext);\n        this.canvas.render();\n\n        itext.enterEditing();\n        itext.selectAll();\n    }\n\n    private autoPositionText(text: IText) {\n        const canvasWidth = this.canvas.fabric().getWidth(),\n              canvasHeight = this.canvas.fabric().getHeight();\n\n        // make sure min width is not larger then canvas width\n        const minWidth = Math.min(this.canvas.fabric().getWidth(), this.minWidth);\n\n        text.scaleToWidth(Math.max(canvasWidth / 3, minWidth));\n\n        // make sure text is not scaled outside canvas\n        if (text.getScaledHeight() > canvasHeight) {\n            text.scaleToHeight(canvasHeight - text.getScaledHeight() - 20);\n        }\n\n        text.viewportCenter();\n\n        // push text down, if it intersects with another text object\n        this.canvas.fabric().getObjects('i-text').forEach(obj => {\n            if (obj === text) return;\n            if (obj.intersectsWithObject(text)) {\n                const offset = (obj.top - text.top) + obj.getScaledHeight();\n                let newTop = text.top + offset;\n\n                // if pushing object down would push it outside canvas, position text at top of canvas\n                if (newTop > this.canvas.state.original.height - obj.getScaledHeight()) {\n                    newTop = 0;\n                }\n\n                text.set('top', newTop);\n                text.setCoords();\n            }\n        });\n    }\n\n    /**\n     * Get all custom fonts used on canvas.\n     */\n    public getUsedFonts(): FontItem[] {\n        return this.objects.getAll()\n            .filter(obj => obj.type === 'i-text')\n            .map((obj: PixieObjOptions) => {\n                return obj.activeFont ||\n                    this.fontsPaginator.original.find(f => f.family === obj.fontFamily);\n            }).filter(font => {\n                return font && font.type !== 'basic';\n            });\n    }\n}\n","import {Injectable} from '@angular/core';\r\nimport {Settings} from '@common/core/config/settings.service';\r\nimport * as WebFont from 'webfontloader';\r\nimport {FontsPaginatorService} from './fonts-paginator.service';\r\nimport {map} from 'rxjs/operators';\r\nimport {HttpCacheClient} from '@common/core/http/http-cache-client';\r\nimport {FontItem} from './font-item';\r\n\r\n@Injectable()\r\nexport class GoogleFontsPanelService {\r\n    private loadedFonts: FontItem[] = [];\r\n\r\n    constructor(\r\n        private http: HttpCacheClient,\r\n        private settings: Settings,\r\n        public paginator: FontsPaginatorService,\r\n    ) {\r\n        this.paginator.current$.subscribe(fonts => {\r\n            this.loadIntoDom(fonts);\r\n        });\r\n    }\r\n\r\n    public async init() {\r\n        let allFonts = this.settings.get('pixie.tools.text.items', []);\r\n\r\n        if ( ! this.settings.get('pixie.tools.text.replaceDefault')) {\r\n            allFonts = allFonts.concat(await this.getGoogleFonts());\r\n        }\r\n\r\n        this.paginator.setFonts(allFonts);\r\n    }\r\n\r\n    /**\r\n     * Load specified google fonts into the DOM.\r\n     */\r\n    public loadIntoDom(names: FontItem[] = [], context?: Window): Promise<any> {\r\n        return new Promise(resolve => {\r\n            if ( ! names || ! names.length) return resolve();\r\n\r\n            // remove already loaded fonts\r\n            names = names.filter(curr => !this.loadedFonts.find(font => font.family === curr.family));\r\n            if ( ! names.length) return resolve();\r\n            this.loadedFonts = this.loadedFonts.concat(names);\r\n\r\n            const google = names.filter(font => font.type === 'google');\r\n            const custom = names.filter(font => font.type === 'custom');\r\n\r\n            const config = {\r\n                active: resolve,\r\n                context: context as any,\r\n                classes: false,\r\n            };\r\n\r\n            if (google.length) {\r\n                config['google'] = {families: google.map(font => font.family)};\r\n            }\r\n\r\n            if (custom.length) {\r\n                this.loadCustomFonts(custom, context);\r\n                config['custom'] = {families: custom.map(font => font.family)};\r\n            }\r\n\r\n            WebFont.load(config);\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Load custom fonts via font-face css property.\r\n     */\r\n    private loadCustomFonts(fonts: FontItem[] = [], context?: Window) {\r\n        if ( ! fonts.length) return;\r\n        let style = '';\r\n\r\n        fonts.forEach(font => {\r\n            const url = this.settings.getAssetUrl('fonts/' + font.filePath, true);\r\n            style += '@font-face { font-family: ' + font.family + '; src: url(\"' + url + '\"); }';\r\n        });\r\n\r\n        const styleEl = document.createElement('style');\r\n        styleEl.innerHTML = style;\r\n        (context || window).document.head.appendChild(styleEl);\r\n    }\r\n\r\n    /**\r\n     * Get list of all google fonts.\r\n     */\r\n    private getGoogleFonts(): Promise<FontItem[]> {\r\n        const key = this.settings.get('pixie.googleFontsApiKey');\r\n        return this.http.getWithCache('https://www.googleapis.com/webfonts/v1/webfonts?sort=popularity&key=' + key)\r\n            .pipe(map(response => {\r\n                return response['items'].map(font => {\r\n                    return {family: font.family, category: font.category, type: 'google'};\r\n                });\r\n            })).toPromise();\r\n    }\r\n}\r\n","import {BehaviorSubject} from 'rxjs';\r\nimport {FormControl, FormGroup} from '@angular/forms';\r\nimport {distinctUntilChanged, debounceTime} from 'rxjs/operators';\r\nimport {FontCategory} from './font-category';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {FontItem} from './font-item';\r\nimport {Injectable} from '@angular/core';\r\n\r\n@Injectable()\r\nexport class FontsPaginatorService {\r\n    public original: FontItem[] = [];\r\n    public filtered: FontItem[][] = [];\r\n\r\n    public filters = new FormGroup({\r\n        search: new FormControl(),\r\n        category: new FormControl('handwriting'),\r\n    });\r\n\r\n    /**\r\n     * Total number of pages.\r\n     */\r\n    private totalPages = 0;\r\n\r\n    /**\r\n     * Number of fonts per page.\r\n     */\r\n    private perPage = 10;\r\n\r\n    /**\r\n     * Current page of paginator.\r\n     */\r\n    public currentPage = 0;\r\n\r\n    /**\r\n     * Fonts of current paginator page.\r\n     */\r\n    public current$: BehaviorSubject<FontItem[]> = new BehaviorSubject<FontItem[]>([]);\r\n\r\n    constructor(private config: Settings) {\r\n        this.reset();\r\n        this.bindToFilters();\r\n    }\r\n\r\n    /**\r\n     * Open next google fonts page.\r\n     */\r\n    public next() {\r\n        const nextPage = this.currentPage + 1;\r\n\r\n        if (this.totalPages > nextPage) {\r\n            this.setPage(this.currentPage + 1);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Open previous google fonts page.\r\n     */\r\n    public previous() {\r\n        const previousPage = this.currentPage - 1;\r\n\r\n        if (previousPage > 0) {\r\n            this.setPage(this.currentPage - 1);\r\n        }\r\n    }\r\n\r\n    /**\r\n     * Set specified page as current.\r\n     */\r\n    public setPage(page: number) {\r\n        this.currentPage = page;\r\n        this.current$.next(this.filtered[this.currentPage]);\r\n    }\r\n\r\n    public filter(category: keyof FontCategory, query?: string) {\r\n        const filtered = [];\r\n        this.original.forEach(font => {\r\n            const matchesQuery = !query || font.family.toLowerCase().includes(query.toLowerCase()),\r\n                matchesCategory = font.category.toLowerCase() === (category as string).toLowerCase();\r\n            if (matchesCategory && matchesQuery) {\r\n                filtered.push(font);\r\n            }\r\n        });\r\n\r\n        this.filtered = this.chunkFonts(filtered);\r\n        this.totalPages = this.filtered.length;\r\n        this.setPage(0);\r\n    }\r\n\r\n    /**\r\n     * Set new font items to paginate.\r\n     */\r\n    public setFonts(fonts: FontItem[]) {\r\n        this.original = fonts;\r\n        this.filter(this.filters.get('category').value);\r\n        this.filters.patchValue({\r\n            category: this.config.get('pixie.tools.text.defaultCategory', 'handwriting'),\r\n        });\r\n    }\r\n\r\n    public getTotal() {\r\n        return this.filtered.length * this.perPage;\r\n    }\r\n\r\n    public reset() {\r\n        this.filters.setValue({\r\n            search: null,\r\n            category: 'handwriting'\r\n        });\r\n        this.setPage(0);\r\n    }\r\n\r\n    /**\r\n     * Split fonts array into page chunks.\r\n     */\r\n    private chunkFonts(fonts: FontItem[]) {\r\n        const chunked = [];\r\n\r\n        while (fonts.length > 0) {\r\n            chunked.push(fonts.splice(0, this.perPage));\r\n        }\r\n\r\n        return chunked;\r\n    }\r\n\r\n    /**\r\n     * Perform a search when user types into search input.\r\n     */\r\n    private bindToFilters() {\r\n        this.filters.valueChanges\r\n            .pipe(debounceTime(100), distinctUntilChanged())\r\n            .subscribe(e => this.filter(e.category, e.search));\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {Observable, of} from 'rxjs';\r\nimport {share} from 'rxjs/operators';\r\nimport {HttpClient} from '@angular/common/http';\r\nimport {HttpErrorHandler} from './errors/http-error-handler.service';\r\nimport { AppHttpClient } from './app-http-client.service';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class HttpCacheClient extends AppHttpClient {\r\n    protected cache = {};\r\n\r\n    constructor(\r\n        protected http: HttpClient,\r\n        protected errorHandler: HttpErrorHandler,\r\n    ) {\r\n        super(http, errorHandler);\r\n    }\r\n\r\n    public getWithCache<T>(url: string, params: Object = {}): Observable<T> {\r\n        const key = this.makeCacheKey(url, params);\r\n\r\n        // this request is in progress and not yet resolved,\r\n        // we can return same observable for all callers\r\n        if (this.cache[key] instanceof Observable) {\r\n            return this.cache[key];\r\n\r\n        // this request is completed and cached, we can return cached response\r\n        } else if (this.cache[key]) {\r\n            return of(this.cache[key]);\r\n\r\n        // this request was not made yet, so we make a new one\r\n        } else {\r\n            const request = this.get(url, params).pipe(share()) as any;\r\n            request.subscribe(data => this.cache[key] = data, () => {});\r\n            return this.cache[key] = request;\r\n        }\r\n    }\r\n\r\n    public post<T>(url: string, params?, headers?): Observable<T> {\r\n        this.clearCache();\r\n        return super.post(url, params);\r\n    }\r\n\r\n    public put<T>(url: string, params = {}, headers?): Observable<T> {\r\n        this.clearCache();\r\n        return super.put(url, params);\r\n    }\r\n\r\n    public delete<T>(url: string, params = {}, headers?): Observable<T> {\r\n        this.clearCache();\r\n        return super.delete(url, params);\r\n    }\r\n\r\n    public clearCache() {\r\n        this.cache = {};\r\n    }\r\n\r\n    private makeCacheKey(url: string, params?): string {\r\n        return url + JSON.stringify(params);\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport { HttpClient, HttpEventType, HttpParams, HttpRequest } from '@angular/common/http';\r\nimport { Observable } from 'rxjs';\r\nimport { catchError, filter } from 'rxjs/operators';\r\nimport { HttpErrorHandler } from '@common/core/http/errors/http-error-handler.service';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class AppHttpClient {\r\n    static prefix = 'secure';\r\n\r\n    constructor(protected httpClient: HttpClient, protected errorHandler: HttpErrorHandler) {}\r\n\r\n    public get<T>(uri: string, params = {}, options: object = {}): Observable<T> {\r\n        const httpParams = this.generateHttpParams(params);\r\n        return this.httpClient.get<T>(this.prefixUri(uri), {params: httpParams, ...options})\r\n            .pipe(catchError(err => this.errorHandler.handle(err, uri, options)));\r\n    }\r\n\r\n    public post<T>(uri: string, params: object = null): Observable<T> {\r\n        return this.httpClient.post<T>(this.prefixUri(uri), params)\r\n            .pipe(catchError(err => this.errorHandler.handle(err, uri)));\r\n    }\r\n\r\n    public put<T>(uri: string, params: object = {}): Observable<T> {\r\n        params = this.spoofHttpMethod(params, 'PUT');\r\n        return this.httpClient.post<T>(this.prefixUri(uri), params)\r\n            .pipe(catchError(err => this.errorHandler.handle(err, uri)));\r\n    }\r\n\r\n    public delete<T>(uri: string, params: object = {}): Observable<T> {\r\n        params = this.spoofHttpMethod(params, 'DELETE');\r\n        return this.httpClient.post<T>(this.prefixUri(uri), params)\r\n            .pipe(catchError(err => this.errorHandler.handle(err, uri)));\r\n    }\r\n\r\n    public postWithProgress(uri: string, params: FormData) {\r\n        const req = new HttpRequest('POST', this.prefixUri(uri), params, {\r\n            reportProgress: true\r\n        });\r\n        return this.httpClient.request(req).pipe(\r\n            catchError(err => this.errorHandler.handle(err, uri)),\r\n            filter(e => [HttpEventType.Sent, HttpEventType.UploadProgress, HttpEventType.Response].includes(e.type))\r\n        );\r\n    }\r\n\r\n    /**\r\n     * Prefix specified uri with backend API prefix.\r\n     */\r\n    private prefixUri(uri: string) {\r\n        if (uri.indexOf('://') > -1 || uri.startsWith(AppHttpClient.prefix)) return uri;\r\n        return `${AppHttpClient.prefix}/${uri}`;\r\n    }\r\n\r\n    /**\r\n     * Generate http params for GET request.\r\n     */\r\n    private generateHttpParams(params: object|null) {\r\n        let httpParams = new HttpParams();\r\n        if ( ! params) return httpParams;\r\n\r\n        Object.keys(params).forEach(key => {\r\n            let value = params[key];\r\n            if (value == null) value = '';\r\n            httpParams = httpParams.append(key, value);\r\n        });\r\n\r\n        return httpParams;\r\n    }\r\n\r\n    /**\r\n     * Spoof http method by adding '_method' to request params.\r\n     */\r\n    private spoofHttpMethod(params: object|FormData, method: 'PUT'|'DELETE'): object|FormData {\r\n        if (params instanceof FormData) {\r\n            (params as FormData).append('_method', method);\r\n        } else {\r\n            params['_method'] = method;\r\n        }\r\n\r\n        return params;\r\n    }\r\n}\r\n","import {HttpErrorResponse} from '@angular/common/http';\r\nimport {Observable, throwError} from 'rxjs';\r\nimport {Translations} from '../../translations/translations.service';\r\nimport {BackendErrorResponse} from '../../types/backend-error-response';\r\nimport {Injectable} from '@angular/core';\r\nimport {Toast} from '@common/core/ui/toast.service';\r\nimport {HttpErrors} from '@common/core/http/errors/http-errors.enum';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport abstract class HttpErrorHandler {\r\n    protected constructor(\r\n        protected i18n: Translations,\r\n        protected toast: Toast,\r\n    ) {}\r\n\r\n    public handle(response: HttpErrorResponse, uri?: string, options: {[key: string]: any} = {}): Observable<never> {\r\n        const errResponse = (response.error || {}) as BackendErrorResponse;\r\n        errResponse.status = response.status;\r\n\r\n        if ( ! errResponse.errors) {\r\n            errResponse.errors = {};\r\n        }\r\n\r\n        Object.keys(errResponse.errors).forEach(key => {\r\n            const message = errResponse.errors[key];\r\n            errResponse.errors[key] = Array.isArray(message) ? message[0] : message;\r\n        });\r\n\r\n        if (!options.suppressAuthToast && (errResponse.status === 403 || errResponse.status === 401)) {\r\n            this.handle403Error(errResponse);\r\n        } else if (errResponse.status === 422 && errResponse.message && !Object.keys(errResponse.errors).length) {\r\n            this.toast.open(errResponse.message, {duration: 15000});\r\n        } else if (errResponse.status === 500) {\r\n            const message = (errResponse?.message || HttpErrors.Default).substring(0, 200);\r\n            this.toast.open(message, {duration: 15000});\r\n        }\r\n\r\n        return throwError(errResponse);\r\n    }\r\n\r\n    /**\r\n     * Redirect user to login page or show toast informing\r\n     * user that he does not have required permissions.\r\n     */\r\n    protected abstract handle403Error(response: BackendErrorResponse);\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport {MatSnackBar, MatSnackBarRef, SimpleSnackBar} from '@angular/material/snack-bar';\r\nimport { Settings } from '../config/settings.service';\r\nimport { Translations } from '../translations/translations.service';\r\nimport { ComponentType } from '@angular/cdk/portal';\r\nimport { HttpErrors } from '../http/errors/http-errors.enum';\r\n\r\nexport const TOAST_WITH_ACTION_DURATION = 15000;\r\n\r\nexport interface ToastMessage {\r\n    message: string;\r\n    replacements: {[key: string]: string|number};\r\n}\r\n\r\nexport interface ToastConfig {\r\n    duration?: number;\r\n    action?: string;\r\n}\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class Toast {\r\n    constructor(\r\n        private settings: Settings,\r\n        private i18n: Translations,\r\n        private snackbar: MatSnackBar\r\n    ) {}\r\n\r\n    public open(message: string|ToastMessage, config: ToastConfig = {}): MatSnackBarRef<SimpleSnackBar> {\r\n        if ( ! config.duration && config.duration !== 0) {\r\n            config.duration = config.action ? TOAST_WITH_ACTION_DURATION : 3000;\r\n        }\r\n\r\n        if ( ! message) {\r\n            message = HttpErrors.Default;\r\n        }\r\n\r\n        const translatedMsg = typeof message === 'string' ?\r\n            this.i18n.t(message) :\r\n            this.i18n.t(message.message, message.replacements);\r\n\r\n        return this.snackbar.open(this.i18n.t(translatedMsg), this.i18n.t(config.action), {duration: config.duration});\r\n    }\r\n\r\n    public openComponent<T>(component: ComponentType<T>, config?: {duration?: number, data?: {[key: string]: any}}) {\r\n        return this.snackbar.openFromComponent(component, config);\r\n    }\r\n}\r\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {MarkAsDirty, OpenObjectSettingsPanel} from './objects.actions';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {ActiveObjectService} from '../../../image-editor/canvas/active-object/active-object.service';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {Injectable} from '@angular/core';\r\n\r\nexport interface ObjectsStateModel {\r\n    dirty: boolean;\r\n    activePanel: string;\r\n}\r\n\r\n@State<ObjectsStateModel>({\r\n    name: DrawerName.OBJECT_SETTINGS,\r\n    defaults: {\r\n        dirty: false,\r\n        activePanel: null,\r\n    }\r\n})\r\n@Injectable()\r\nexport class ObjectsState extends BaseToolState<ObjectsStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.OBJECT_SETTINGS;\r\n\r\n    @Selector()\r\n    static dirty(state: ObjectsStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    @Selector()\r\n    static activePanel(state: ObjectsStateModel) {\r\n        return state.activePanel;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected activeObject: ActiveObjectService,\r\n        protected actions$: Actions,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(OpenObjectSettingsPanel)\r\n    openObjectSettingsPanel(ctx: StateContext<ObjectsStateModel>, action: OpenObjectSettingsPanel) {\r\n        ctx.patchState({activePanel: action.panel});\r\n    }\r\n\r\n    @Action(MarkAsDirty)\r\n    markAsDirty(ctx: StateContext<ObjectsStateModel>) {\r\n        ctx.patchState({dirty: true});\r\n    }\r\n\r\n    cancelChanges(ctx: StateContext<ObjectsStateModel>) {\r\n        if (ctx.getState().activePanel) {\r\n            ctx.patchState({activePanel: null});\r\n        } else {\r\n            this.store.dispatch(new CloseForePanel());\r\n            this.activeObject.deselect();\r\n        }\r\n\r\n        if (ctx.getState().dirty) {\r\n            this.history.reload();\r\n        }\r\n\r\n        ctx.patchState({dirty: false});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<ObjectsStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.OBJECT_STYLE);\r\n        }\r\n        ctx.patchState({dirty: false, activePanel: null});\r\n        this.activeObject.deselect();\r\n    }\r\n\r\n    resetState(ctx: StateContext<ObjectsStateModel>) {\r\n        ctx.setState({\r\n            dirty: false,\r\n            activePanel: null,\r\n        });\r\n    }\r\n}\r\n","import {Actions, NgxsOnInit, ofActionSuccessful, StateContext} from '@ngxs/store';\r\nimport {\r\n    ApplyChanges,\r\n    CancelChanges,\r\n    ResetToolState\r\n} from '../../image-editor/state/editor-state-actions';\r\nimport {filter} from 'rxjs/operators';\r\nimport {DrawerName} from '../toolbar-controls/drawers/drawer-name.enum';\r\n\r\nexport abstract class BaseToolState<T> implements NgxsOnInit {\r\n    protected abstract actions$: Actions;\r\n    protected abstract toolName: DrawerName;\r\n\r\n    ngxsOnInit(ctx?: StateContext<T>) {\r\n        this.actions$.pipe(\r\n            ofActionSuccessful(ApplyChanges),\r\n            filter(action => action.panel === this.toolName)\r\n        ).subscribe(action => {\r\n            this.applyChanges(ctx, action);\r\n        });\r\n\r\n        this.actions$.pipe(\r\n            ofActionSuccessful(CancelChanges),\r\n            filter(action => action.panel === this.toolName)\r\n        ).subscribe(action => {\r\n            this.cancelChanges(ctx, action);\r\n        });\r\n\r\n        // reset all tool states at the same time\r\n        this.actions$.pipe(\r\n            ofActionSuccessful(ResetToolState),\r\n        ).subscribe(action => {\r\n            this.resetState(ctx, action);\r\n        });\r\n    }\r\n\r\n    public abstract applyChanges(ctx: StateContext<T>, action: ApplyChanges);\r\n    public abstract cancelChanges(ctx: StateContext<T>, action: CancelChanges);\r\n    public abstract resetState(ctx: StateContext<T>, action: CancelChanges);\r\n}\r\n","export class ApplyFilter {\r\n    static readonly type = '[Editor.Filter] Toggle Filter';\r\n    constructor(public filter: string) {}\r\n}\r\n\r\nexport class RemoveFilter {\r\n    static readonly type = '[Editor.Filter] Remove Filter';\r\n    constructor(public filter: string) {}\r\n}\r\n\r\nexport class OpenFilterControls {\r\n    static readonly type = '[Editor.Filter] Open Filter Controls';\r\n    constructor(public filter: string) {}\r\n}\r\n\r\nexport class SetAppliedFilters {\r\n    static readonly type = '[Editor.Filter] Set Applied Filters';\r\n    constructor(public filters: string[]) {}\r\n}\r\n\r\n","import {IBaseFilter} from 'fabric/fabric-impl';\n\nexport interface Filter {\n    name: string;\n    uses?: string;\n    options?: {[key: string]: any};\n    initialConfig?: {[key: string]: any};\n    matrix?: number[];\n    apply?: Function;\n}\n\nexport const filtersList: Filter[] = [\n    {name: 'grayscale'},\n    {name: 'blackWhite'},\n    {\n        name: 'sharpen',\n        uses: 'Convolute',\n        matrix: [0, -1, 0, -1, 5, -1, 0, -1, 0]\n    },\n    {name: 'invert'},\n    {name: 'vintage'},\n    {name: 'polaroid'},\n    {name: 'kodachrome'},\n    {name: 'technicolor'},\n    {name: 'brownie'},\n    {name: 'sepia'},\n    {\n        name: 'removeColor',\n        options: {\n            distance: {type: 'slider', current: 0.1, min: 0, max: 1, step: 0.01},\n            color: {current: '#fff', type: 'colorPicker'}\n        }\n    },\n    {\n        name: 'brightness',\n        options: {\n            brightness: {type: 'slider', current: 0.1, min: -1, max: 1, step: 0.1}\n        }\n    },\n    {\n        name: 'gamma',\n        options: {\n            red: {type: 'slider', current: 0.1, min: 0.2, max: 2.2, step: 0.003921},\n            green: {type: 'slider', current: 0.1, min: 0.2, max: 2.2, step: 0.003921},\n            blue: {type: 'slider', current: 0.1, min: 0.2, max: 2.2, step: 0.003921},\n        },\n        apply: (filter: IBaseFilter, name: string, value: number) => {\n            filter['gamma'] = [filter['red'], filter['green'], filter['blue']];\n        }\n    },\n    {\n        name: 'noise',\n        options: {\n            noise: {type: 'slider', current: 40, max: 600}\n        }\n    },\n    {\n        name: 'pixelate',\n        options: {\n            blocksize: {type: 'slider', min: 1, max: 40, current: 6}\n        }\n    },\n    {\n        name: 'blur',\n        uses: 'Convolute',\n        matrix: [1 / 9, 1 / 9, 1 / 9, 1 / 9, 1 / 9, 1 / 9, 1 / 9, 1 / 9, 1 / 9]\n    },\n    {\n        name: 'emboss',\n        uses: 'Convolute',\n        matrix: [1, 1, 1, 1, 0.7, -1, -1, -1, -1]\n    },\n    {\n        name: 'blendColor',\n        options: {\n            mode: {current: 'add', type: 'select', available: ['add', 'multiply', 'subtract', 'diff', 'screen', 'lighten', 'darken']},\n            alpha: {type: 'slider', current: 0.5, min: 0.1, max: 1, step: 0.1},\n            color: {type: 'colorPicker', current: '#FF4081'}\n        }\n    }\n];\n","export function ucFirst(string: string) {\r\n    if ( ! string) return '';\r\n    return (string.charAt(0).toUpperCase() + string.slice(1)) as any;\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {fabric} from 'fabric';\r\nimport {Filter, filtersList} from './filters-list';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {IBaseFilter, Image} from 'fabric/fabric-impl';\r\nimport {Actions, ofActionSuccessful, Store} from '@ngxs/store';\r\nimport {ApplyFilter, RemoveFilter, SetAppliedFilters} from '../../../image-editor-ui/state/filter/filter.actions';\r\nimport {HistoryChanged} from '../../../image-editor-ui/state/history/history.actions';\r\nimport {ObjectNames} from '../../objects/object-names.enum';\r\nimport {ucFirst} from '@common/core/utils/uc-first';\r\n\r\n@Injectable()\r\nexport class FilterToolService {\r\n    private filtersList = filtersList;\r\n\r\n    constructor(\r\n        private canvas: CanvasService,\r\n        private store: Store,\r\n        private actions$: Actions,\r\n    ) {\r\n        this.syncWithHistory();\r\n    }\r\n\r\n    public apply(filterName: string) {\r\n        const filter = this.getByName(filterName);\r\n        if (this.applied(filter.name)) {\r\n            return this.remove(filter.name);\r\n        }\r\n\r\n        this.store.dispatch(new ApplyFilter(filter.name));\r\n        const newFilter = this.create(filter);\r\n\r\n        this.getImages().forEach(image => {\r\n            image.filters.push(newFilter);\r\n            image.applyFilters();\r\n        });\r\n\r\n        this.canvas.render();\r\n    }\r\n\r\n    public remove(filterName: string) {\r\n        const filter = this.getByName(filterName);\r\n\r\n        this.store.dispatch(new RemoveFilter(filter.name));\r\n        this.getImages().forEach(image => {\r\n            const i = this.findFilterIndex(filter.name, image.filters);\r\n            image.filters.splice(i, 1);\r\n            image.applyFilters();\r\n        });\r\n\r\n        this.canvas.render();\r\n    }\r\n\r\n    public getAll(): Filter[] {\r\n        return this.filtersList;\r\n    }\r\n\r\n    public getByName(name: string): Filter {\r\n        return this.filtersList.find(filter => filter.name === name);\r\n    }\r\n\r\n    public applied(name: string): boolean {\r\n        const mainImage = this.canvas.getMainImage();\r\n        if ( ! mainImage) return;\r\n        return this.findFilterIndex(name, mainImage.filters) > -1;\r\n    }\r\n\r\n    public hasOptions(name: string) {\r\n        return !!this.getByName(name).options;\r\n    }\r\n\r\n    private findFilterIndex(name: string, filters: IBaseFilter[]): number {\r\n        if ( ! filters.length) return;\r\n\r\n        const filter = this.getByName(name);\r\n\r\n        return filters.findIndex(curr => {\r\n            const type = curr.type.toLowerCase();\r\n\r\n            // match by type\r\n            if (type === name.toLowerCase()) return true;\r\n\r\n            // match by matrix\r\n            return type === 'convolute' && this.matrixAreEqual(filter.matrix, curr['matrix']);\r\n        });\r\n    }\r\n\r\n    private matrixAreEqual(matrix1: number[], matrix2: number[]): boolean {\r\n        if ( ! matrix1 || ! matrix2 || matrix1.length !== matrix2.length) return false;\r\n\r\n        for (let i = matrix1.length; i--;) {\r\n            if (matrix1[i] !== matrix2[i]) return false;\r\n        }\r\n\r\n        return true;\r\n    }\r\n\r\n    public applyValue(filterName: string, optionName: string, optionValue: number|string) {\r\n        const filter = this.getByName(filterName);\r\n\r\n        this.getImages().forEach(image => {\r\n            const fabricFilter = image.filters.find(curr => {\r\n                return curr.type.toLowerCase() === filter.name.toLowerCase();\r\n            });\r\n\r\n            fabricFilter[optionName] = optionValue;\r\n\r\n            // filter has a special \"resize\" function that needs to be invoked\r\n            if (filter.apply) filter.apply(fabricFilter, optionName, optionValue);\r\n\r\n            image.applyFilters();\r\n        });\r\n\r\n        this.canvas.render();\r\n    }\r\n\r\n    public create(filter: Filter): IBaseFilter {\r\n        const initialConfig = filter.initialConfig || {};\r\n        if (filter.uses) {\r\n            initialConfig.matrix = filter.matrix;\r\n            return new fabric.Image.filters[ucFirst(filter.uses)](initialConfig);\r\n        } else {\r\n            for (const key in filter.options) {\r\n                initialConfig[key] = filter.options[key].current;\r\n            }\r\n            return new fabric.Image.filters[ucFirst(filter.name)](initialConfig);\r\n        }\r\n    }\r\n\r\n    public addCustom(name: string, filter: object, editableOptions?: object, initialConfig?: object) {\r\n        fabric.Image.filters[ucFirst(name)] = fabric.util.createClass(fabric.Image.filters.BaseFilter, filter);\r\n        fabric.Image.filters[ucFirst(name)].fromObject = fabric.Image.filters.BaseFilter['fromObject'];\r\n        filtersList.push({name, options: editableOptions, initialConfig});\r\n    }\r\n\r\n    private getImages(): Image[] {\r\n        return this.canvas.fabric().getObjects(ObjectNames.image.name) as Image[];\r\n    }\r\n\r\n    private syncWithHistory() {\r\n        this.actions$.pipe(\r\n            ofActionSuccessful(HistoryChanged),\r\n        ).subscribe(() => {\r\n            const names = this.getAll()\r\n                .filter(filter => this.applied(filter.name))\r\n                .map(filter => filter.name);\r\n            this.store.dispatch(new SetAppliedFilters(names));\r\n        });\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {CanvasService} from '../../canvas/canvas.service';\n\n@Injectable()\nexport class ResizeToolService {\n\n    constructor(private canvas: CanvasService) {}\n\n    /**\n     * Resize image and other canvas objects. If percentages is false, width/height should be pixels, otherwise it should be percentages.\n     */\n    public apply(width: number, height: number, percentages: boolean = false) {\n        const currentWidth  = Math.ceil(this.canvas.state.original.width),\n            currentHeight = Math.ceil(this.canvas.state.original.height),\n            newWidth      = Math.ceil(width),\n            newHeight     = Math.ceil(height);\n        let widthScale, heightScale;\n\n        if (percentages) {\n            widthScale    = width / 100;\n            heightScale   = height / 100;\n        } else {\n            widthScale    = width / this.canvas.state.original.width;\n            heightScale   = height / this.canvas.state.original.height;\n        }\n\n        if (currentWidth === newWidth && currentHeight === newHeight) return;\n\n        this.resize(widthScale, heightScale);\n    }\n\n    /**\n     * Resize canvas and all objects to specified scale.\n     */\n    private resize(widthScale: number, heightScale: number) {\n        this.canvas.zoom.set(100, false);\n\n        const newHeight = Math.round(this.canvas.state.original.height * heightScale),\n            newWidth  = Math.round(this.canvas.state.original.width * widthScale);\n\n        this.canvas.fabric().setHeight(newHeight);\n        this.canvas.fabric().setWidth(newWidth);\n        this.canvas.state.original.width = newWidth;\n        this.canvas.state.original.height = newHeight;\n\n        this.canvas.fabric().getObjects().forEach(object => {\n            const scaleX = object.scaleX;\n            const scaleY = object.scaleY;\n            const left = object.left;\n            const top = object.top;\n\n            const tempScaleX = scaleX * widthScale;\n            const tempScaleY = scaleY * heightScale;\n            const tempLeft = left * widthScale;\n            const tempTop = top * heightScale;\n\n            object.scaleX = tempScaleX;\n            object.scaleY = tempScaleY;\n            object.left = tempLeft;\n            object.top = tempTop;\n\n            object.setCoords();\n        });\n\n        this.canvas.zoom.fitToScreen();\n        this.canvas.render();\n    }\n}\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {OpenFilterControls, RemoveFilter, ApplyFilter, SetAppliedFilters} from './filter.actions';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {FilterToolService} from '../../../image-editor/tools/filter/filter-tool.service';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface FilterStateModel {\r\n    dirty: boolean;\r\n    activeFilters: string[];\r\n    selectedFilter: string;\r\n}\r\n\r\n@State<FilterStateModel>({\r\n    name: 'filter',\r\n    defaults: {\r\n        dirty: false,\r\n        activeFilters: [],\r\n        selectedFilter: null,\r\n    }\r\n})\r\n@Injectable()\r\nexport class FilterState extends BaseToolState<FilterStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.FILTER;\r\n\r\n    @Selector()\r\n    static activeFilters(state: FilterStateModel) {\r\n        return state.activeFilters;\r\n    }\r\n\r\n    @Selector()\r\n    static selectedFilter(state: FilterStateModel) {\r\n        return state.selectedFilter;\r\n    }\r\n\r\n    @Selector()\r\n    static dirty(state: FilterStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n        protected filterTool: FilterToolService,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(ApplyFilter)\r\n    toggleFilter(ctx: StateContext<FilterStateModel>, action: ApplyFilter) {\r\n        ctx.patchState({\r\n            dirty: true,\r\n            activeFilters: [...ctx.getState().activeFilters, action.filter]\r\n        });\r\n    }\r\n\r\n    @Action(RemoveFilter)\r\n    removeFilter(ctx: StateContext<FilterStateModel>, action: RemoveFilter) {\r\n        const activeFilters = ctx.getState().activeFilters.filter(f => f !== action.filter);\r\n        ctx.patchState({dirty: true, activeFilters});\r\n    }\r\n\r\n    @Action(OpenFilterControls)\r\n    openFilterControls(ctx: StateContext<FilterStateModel>, action: OpenFilterControls) {\r\n        ctx.patchState({selectedFilter: action.filter});\r\n    }\r\n\r\n    @Action(SetAppliedFilters)\r\n    setAppliedFilters(ctx: StateContext<FilterStateModel>, {filters}: SetAppliedFilters) {\r\n        ctx.patchState({activeFilters: filters});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<FilterStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.FILTER);\r\n        }\r\n        ctx.patchState({dirty: false, selectedFilter: null});\r\n    }\r\n\r\n    cancelChanges(ctx: StateContext<FilterStateModel>) {\r\n        const selectedFilter = ctx.getState().selectedFilter;\r\n\r\n        // if filter is selected reset all options for that filter to default\r\n        // otherwise all currently applied filter will get removed on \"cancel\"\r\n        if (selectedFilter) {\r\n            const filter = this.filterTool.getByName(selectedFilter);\r\n            Object.keys(filter.options).forEach(optionName => {\r\n                this.filterTool.applyValue(selectedFilter, optionName, filter.options[optionName].current);\r\n            });\r\n            ctx.patchState({selectedFilter: null});\r\n\r\n        // close whole filter drawer only if not filter is currently selected\r\n        } else {\r\n            this.store.dispatch(new CloseForePanel());\r\n            if (ctx.getState().dirty) {\r\n                this.history.reload();\r\n            }\r\n            ctx.patchState({dirty: false, selectedFilter: null});\r\n        }\r\n    }\r\n\r\n    resetState(ctx: StateContext<FilterStateModel>) {\r\n        ctx.setState({\r\n            dirty: false,\r\n            activeFilters: [],\r\n            selectedFilter: null,\r\n        });\r\n    }\r\n}\r\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {ResizeToolService} from '../../../image-editor/tools/resize/resize-tool.service';\r\nimport {SetResizeDimensions} from './resize.actions';\r\nimport {Toast} from '@common/core/ui/toast.service';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface ResizeStateModel {\r\n    dirty: boolean;\r\n    resized: boolean;\r\n    width: number;\r\n    height: number;\r\n    usePercentages: boolean;\r\n}\r\n\r\nconst RESIZE_STATE_DEFAULTS: ResizeStateModel = {\r\n    dirty: false,\r\n    resized: false,\r\n    width: null,\r\n    height: null,\r\n    usePercentages: false,\r\n};\r\n\r\n@State<ResizeStateModel>({\r\n    name: 'resize',\r\n    defaults: RESIZE_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class ResizeState extends BaseToolState<ResizeStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.RESIZE;\r\n\r\n    @Selector()\r\n    static dirty(state: ResizeStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n        protected resizeTool: ResizeToolService,\r\n        protected toast: Toast,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(SetResizeDimensions)\r\n    setResizeDimensions(ctx: StateContext<ResizeStateModel>, action: SetResizeDimensions) {\r\n        ctx.patchState({...action.params, dirty: true});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<ResizeStateModel>) {\r\n        const {width, height, usePercentages} = ctx.getState();\r\n        this.store.dispatch(new CloseForePanel());\r\n        this.resizeTool.apply(width, height, usePercentages);\r\n        this.toast.open('Photo resized.');\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.RESIZE);\r\n        }\r\n        ctx.patchState(RESIZE_STATE_DEFAULTS);\r\n    }\r\n\r\n   cancelChanges(ctx: StateContext<ResizeStateModel>) {\r\n       this.store.dispatch(new CloseForePanel());\r\n       ctx.patchState(RESIZE_STATE_DEFAULTS);\r\n   }\r\n\r\n    resetState(ctx: StateContext<ResizeStateModel>) {\r\n        ctx.setState(RESIZE_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {CanvasService} from '../../canvas/canvas.service';\nimport {MergeToolService} from '../merge/merge-tool.service';\nimport {CropZoneService} from './crop-zone.service';\n\n@Injectable()\nexport class CropToolService {\n    constructor(\n        private canvas: CanvasService,\n        private mergeTool: MergeToolService,\n        private cropZone: CropZoneService,\n    ) {}\n\n    public apply(box: {left: number, top: number, width: number, height: number}): Promise<any> {\n        this.cropZone.remove();\n        return this.mergeTool.apply().then(() => {\n            this.canvas.resize(Math.round(box.width), Math.round(box.height));\n\n            const img = this.canvas.getMainImage();\n            img.cropX = Math.round(box.left);\n            img.cropY = Math.round(box.top);\n            img.width = Math.round(box.width);\n            img.height = Math.round(box.height);\n\n            this.canvas.render();\n        });\n    }\n}\n","import {Injectable} from '@angular/core';\r\nimport {ActiveObjectService} from '../../canvas/active-object/active-object.service';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {ExportToolService} from '../export/export-tool.service';\r\nimport {ObjectListService} from '../../objects/object-list.service';\r\nimport {ActiveFrameService} from '../frame/active-frame.service';\r\nimport {ObjectNames} from '../../objects/object-names.enum';\r\n\r\n@Injectable()\r\nexport class MergeToolService {\r\n    constructor(\r\n        private activeObject: ActiveObjectService,\r\n        private canvas: CanvasService,\r\n        private saveTool: ExportToolService,\r\n        private objects: ObjectListService,\r\n        private activeFrame: ActiveFrameService,\r\n    ) {}\r\n\r\n    public canMerge(): boolean {\r\n        return this.objects.getAll()\r\n            .filter(obj => obj.name !== ObjectNames.mainImage.name)\r\n            .length > 0;\r\n    }\r\n\r\n    public apply(): Promise<any> {\r\n        this.canvas.state.contentLoadingState$.next({name: 'merge', loading: true});\r\n        const data = this.saveTool.getDataUrl();\r\n        this.clearCanvas();\r\n        return this.canvas.loadMainImage(data, false, 'merge');\r\n    }\r\n\r\n    private clearCanvas() {\r\n        this.activeFrame.remove();\r\n        this.canvas.fabric().clear();\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {CropZoneService} from '../crop/crop-zone.service';\r\nimport {HistoryToolService} from '../../history/history-tool.service';\r\nimport { saveAs } from 'file-saver';\r\nimport * as b64toBlob from 'b64-to-blob';\r\nimport {Settings} from '@common/core/config/settings.service';\r\nimport {HttpClient} from '@angular/common/http';\r\nimport {WatermarkToolService} from '../watermark-tool.service';\r\nimport {Toast} from '@common/core/ui/toast.service';\r\nimport {ucFirst} from '@common/core/utils/uc-first';\r\n\r\ntype ValidFormats = 'png'|'jpeg'|'json'|'svg';\r\n\r\n@Injectable()\r\nexport class ExportToolService {\r\n    constructor(\r\n        private canvas: CanvasService,\r\n        private cropzone: CropZoneService,\r\n        private history: HistoryToolService,\r\n        private config: Settings,\r\n        private http: HttpClient,\r\n        private watermark: WatermarkToolService,\r\n        private toast: Toast,\r\n    ) {}\r\n\r\n    public getDefault(key: 'name'|'format'|'quality') {\r\n        return this.config.get('pixie.tools.export.default' + ucFirst(key));\r\n    }\r\n\r\n    /**\r\n     * Export current editor state in specified format.\r\n     */\r\n    public export(name?: string, format?: ValidFormats, quality?: number) {\r\n        if ( ! name) name = this.getDefault('name');\r\n        if ( ! format) format = this.getDefault('format');\r\n        if ( ! quality) quality = this.getDefault('quality');\r\n\r\n        const filename = name + '.' + format; let data;\r\n\r\n        this.applyWaterMark();\r\n\r\n        if (format === 'json') {\r\n            data = this.getJsonState();\r\n        } else {\r\n            data = this.getDataUrl(format, quality);\r\n        }\r\n\r\n        this.watermark.remove();\r\n\r\n        if ( ! data) return;\r\n\r\n        if (this.config.has('pixie.saveUrl')) {\r\n            this.http.post(this.config.get('pixie.saveUrl'), {data, filename, format})\r\n                .subscribe(() => {}, () => {});\r\n        } else if (this.config.has('pixie.onSave')) {\r\n            (this.config.get('pixie.onSave') as Function)(data, filename, format);\r\n        } else {\r\n            this.getCanvasBlob(format, data).then(blob => {\r\n                saveAs(blob, filename);\r\n            });\r\n        }\r\n    }\r\n\r\n    private getCanvasBlob(format: ValidFormats, data: string): Promise<Blob> {\r\n        return new Promise(resolve => {\r\n            let blob;\r\n\r\n            if (format === 'json') {\r\n                blob = new Blob([data], {type: 'application/json'});\r\n            } else if (format === 'svg') {\r\n                blob = new Blob([data], {type: 'image/svg+xml'});\r\n            } else {\r\n                const contentType = 'image/' + format;\r\n                data = data.replace(/data:image\\/([a-z]*)?;base64,/, '');\r\n                blob = (b64toBlob as any)(data, contentType);\r\n            }\r\n\r\n            resolve(blob);\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Export current editor state as data url.\r\n     */\r\n    public getDataUrl(format: ValidFormats = this.getDefault('format'), quality: number = this.getDefault('quality')): string {\r\n        this.prepareCanvas();\r\n        try {\r\n            if (format === 'svg') {\r\n                return this.canvas.fabric().toSVG();\r\n            } else {\r\n                return this.canvas.fabric().toDataURL({\r\n                    format: format,\r\n                    quality: quality,\r\n                    multiplier: this.canvas.state.original.width / this.canvas.fabric().getWidth(),\r\n                });\r\n            }\r\n        } catch (e) {\r\n            if (e.message.toLowerCase().indexOf('tainted') === -1) return null;\r\n            this.toast.open('Could not export canvas with external image.');\r\n        }\r\n    }\r\n\r\n    private getJsonState(): string {\r\n        return JSON.stringify(this.history.getCurrentCanvasState());\r\n    }\r\n\r\n    private prepareCanvas() {\r\n        this.canvas.fabric().discardActiveObject();\r\n        this.canvas.pan.reset();\r\n        this.cropzone.remove();\r\n    }\r\n\r\n    private applyWaterMark() {\r\n        const watermark = this.config.get('pixie.watermarkText');\r\n\r\n        if (watermark) {\r\n            this.watermark.add(watermark);\r\n        }\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {CanvasService} from '../canvas/canvas.service';\nimport {fabric} from 'fabric';\nimport {staticObjectConfig} from '../objects/static-object-config';\nimport {Group} from 'fabric/fabric-impl';\nimport {CanvasStateService} from '../canvas/canvas-state.service';\n\n@Injectable()\nexport class WatermarkToolService {\n\n    /**\n     * Watermark group.\n     */\n    private watermark: Group;\n\n    /**\n     * Default styles for watermark lines.\n     */\n    private lineStyle = {\n        stroke: 'rgba(255,255,255,0.3)',\n        strokeWidth: 5,\n        strokeLineCap: 'round',\n        strokeLineJoin: 'round'\n    };\n\n    /**\n     * WatermarkToolService Constructor.\n     */\n    constructor(\n        private canvas: CanvasService,\n        private canvasState: CanvasStateService,\n    ) {}\n\n    /**\n     * Add a watermark to canvas.\n     */\n    public add(watermarkText: string) {\n        this.createGroup();\n        this.addText(watermarkText);\n        this.addLines();\n\n        this.canvas.fabric().add(this.watermark);\n        this.canvas.render();\n    }\n\n    /**\n     * Remove watermark from canvas.\n     */\n    public remove() {\n        if ( ! this.watermark) return;\n        this.canvas.fabric().remove(this.watermark);\n        this.watermark = null;\n        this.canvas.render();\n    }\n\n    /**\n     * Create watermark group.\n     */\n    private createGroup() {\n        this.watermark = new fabric.Group(null,\n            Object.assign({}, staticObjectConfig, {\n                width: this.canvasState.original.width,\n                height: this.canvasState.original.height,\n                excludeFromExport: true,\n                top: 0,\n                left: 0,\n            })\n        );\n    }\n\n    /**\n     * Add watermark text object.\n     */\n    private addText(watermarkText: string) {\n        const text = new fabric.Text(watermarkText, {\n            fill: 'rgba(255,255,255,0.3)',\n            strokeWidth: 2,\n            stroke: 'rgba(255,255,255,0.4)',\n            originX: 'center',\n            originY: 'center',\n            fontWeight: 600,\n            fontSize: 150,\n            fontFamily: 'Courier New',\n        });\n\n\n        text.scaleToWidth(this.canvasState.original.width / 2);\n        this.watermark.add(text);\n    }\n\n    /**\n     * Add watermark lines to group.\n     */\n    private addLines() {\n        const text = this.watermark.getObjects('text')[0];\n\n        // original canvas size\n        const halfWidth = this.canvasState.original.width / 2,\n            halfHeight = this.canvasState.original.height / 2;\n\n        // offset from text for watermark lines\n        const offsetY = 100,\n            offsetX = text.width / 4;\n\n        const line1 = new fabric.Line(null, this.lineStyle),\n            line2 = new fabric.Line(null, this.lineStyle),\n            line3 = new fabric.Line(null, this.lineStyle),\n            line4 = new fabric.Line(null, this.lineStyle);\n\n        this.watermark.add(line1, line2, line3, line4);\n\n        line1.set({\n            x1: offsetX,\n            y1: -offsetY,\n            x2: halfWidth,\n            y2: -halfHeight,\n        });\n\n        line2.set({\n            x1: offsetX,\n            y1: offsetY,\n            x2: halfWidth,\n            y2: halfHeight,\n        });\n\n        line3.set({\n            x1: -offsetX,\n            y1: -offsetY,\n            x2: -halfWidth,\n            y2: -halfHeight,\n        });\n\n        line4.set({\n            x1: -offsetX,\n            y1: offsetY,\n            x2: -halfWidth,\n            y2: halfHeight,\n        });\n    }\n}\n","import {Injectable} from '@angular/core';\nimport {Object, Group, Line} from 'fabric/fabric-impl';\nimport {fabric} from 'fabric';\nimport {CanvasService} from '../../canvas/canvas.service';\nimport {Subject} from 'rxjs';\nimport {CanvasStateService} from '../../canvas/canvas-state.service';\nimport {Settings} from '@common/core/config/settings.service';\n\n@Injectable()\nexport class CropZoneService {\n\n    /**\n     * Main cropzone rect.\n     */\n    private rect: Object;\n\n    /**\n     * Transparent overlay around cropzone.\n     */\n    private overlay: Group;\n\n    /**\n     * Grid lines inside cropzone.\n     */\n    private grid: Group;\n\n    /**\n     * Whether cropzone is initiated already.\n     */\n    private initiated = false;\n\n    private lastScaleX: number;\n    private lastScaleY: number;\n\n    /**\n     * Color for grid lines and borders.\n     */\n    private readonly gridColor = 'rgba(244,244,244,.4)';\n\n    /**\n     * Current cropzone aspect ratio.\n     */\n    public aspectRatio = '16:9';\n\n    /**\n     * Fired whenever cropzone size changes.\n     */\n    public resize$ = new Subject();\n\n    constructor(\n        private canvas: CanvasService,\n        private canvasState: CanvasStateService,\n        private config: Settings,\n    ) {}\n\n    public draw() {\n        this.drawMainZone(this.aspectRatio);\n        this.drawOverlay();\n        this.drawGrid();\n        this.attachEvents();\n        this.canvas.render();\n        this.initiated = true;\n    }\n\n    /**\n     * Remove cropzone from canvas.\n     */\n    public remove() {\n        if ( ! this.initiated) return;\n\n        this.rect.off();\n        this.canvas.fabric().discardActiveObject();\n        this.canvas.fabric().remove(this.rect, this.grid, this.overlay);\n        this.canvas.render();\n        this.initiated = false;\n    }\n\n    /**\n     * Prevent cropzone from going outside canvas edges during dragging.\n     */\n    private constrainWithinCanvas(object: Object) {\n        const x = object.left, y = object.top;\n        const w = object.getScaledWidth(), h = object.getScaledHeight();\n        const maxX = this.canvasState.original.width - w;\n        const maxY = this.canvasState.original.height - h;\n\n        if (x < 0) {\n            object.left = 0;\n        }\n        if (y < 0) {\n            object.top = 0;\n        }\n        if (x > maxX) {\n            object.left = maxX;\n        }\n        if (y > maxY) {\n            object.top = maxY;\n        }\n    }\n\n    /**\n     * Prevent cropzone from going outside canvas edges during scaling.\n     */\n    private constrainWithinCanvasOnScaling(object: Object) {\n        const minX = object.left,\n            minY = object.top,\n            maxX = (minX + object.getScaledWidth()) - 1,\n            maxY = (minY + object.getScaledHeight()) - 1;\n\n        if (\n            minX < 0 || maxX > this.canvasState.original.width ||\n            minY < 0 || maxY > this.canvasState.original.height\n        ) {\n            object.scaleX = this.lastScaleX || 1;\n            object.scaleY = this.lastScaleY || 1;\n        }\n\n        if (minX < 0) {\n            object.left = 0;\n        }\n\n        if (minY < 0) {\n            object.top = 0;\n        }\n\n        this.lastScaleX = object.scaleX;\n        this.lastScaleY = object.scaleY;\n    }\n\n    private attachEvents() {\n        // redraw cropzone grid and overlay when cropzone is resized\n        this.rect.on('moving', () => {\n            this.constrainWithinCanvas(this.rect);\n            this.drawOverlay();\n            this.drawGrid();\n            this.resize$.next();\n        });\n\n        this.rect.on('scaling', () => {\n            this.constrainWithinCanvasOnScaling(this.rect);\n            this.drawOverlay();\n            this.drawGrid();\n            this.resize$.next();\n        });\n    }\n\n    /**\n     * Calculate cropzone size and position based on specified aspect ratio and canvas size.\n     */\n    public getAdjustedSize(ratioString: string, oldWidth: number, oldHeight: number) {\n        let newWidth = oldWidth,\n            newHeight = oldHeight;\n\n        // convert ratio string to number\n        if (ratioString) {\n            const parts = ratioString.split(':');\n            const aspectRatio = parseInt(parts[0]) / parseInt(parts[1]);\n\n            // calculate cropzone with and height based on aspect ratio and canvas size\n            if (oldHeight * aspectRatio > oldWidth) {\n                newHeight = oldWidth / aspectRatio;\n            } else {\n                newWidth = oldHeight * aspectRatio;\n            }\n        }\n\n        return {width: newWidth, height: newHeight};\n    }\n\n    private drawMainZone(aspectRatio: string) {\n        if ( ! this.initiated) {\n            const defaultConfig = {\n                fill: 'transparent',\n                borderColor: this.gridColor,\n                hasRotatingPoint: false,\n                name: 'crop.zone',\n                lockScalingFlip: true,\n                minScaleLimit: 0,\n                hasControls: !this.config.get('pixie.tools.crop.hideCustomControls'),\n            };\n\n            this.rect = new fabric.Rect({...defaultConfig, ...this.config.get('pixie.tools.crop.cropzone', {})});\n\n            // prevent deselection of crop zone\n            this.rect.on('deselected', () => {\n                this.canvas.fabric().setActiveObject(this.rect);\n            });\n\n            this.canvas.fabric().add(this.rect);\n            this.rect.moveTo(3);\n            this.canvas.fabric().setActiveObject(this.rect);\n        }\n\n        const dimensions = this.getAdjustedSize(\n            aspectRatio,\n            this.canvasState.original.width,\n            this.canvasState.original.height,\n        );\n\n        this.rect.set({\n            width: dimensions.width,\n            height: dimensions.height,\n            lockUniScaling: !!aspectRatio,\n        });\n\n        this.rect.viewportCenter();\n        this.rect.setCoords();\n    }\n\n    private drawGrid() {\n        if ( ! this.initiated) {\n            const lineOptions = {stroke: this.gridColor, strokeWidth: 4, selectable: false, evented: false};\n            const lines = [\n                new fabric.Line([], lineOptions),\n                new fabric.Line([], lineOptions),\n                new fabric.Line([], lineOptions),\n                new fabric.Line([], lineOptions),\n            ];\n\n            this.grid = new fabric.Group(lines, {\n                name: 'crop.grid',\n                selectable: false,\n                evented: false,\n            });\n\n            this.canvas.fabric().add(this.grid);\n            this.grid.moveTo(10);\n        }\n\n        // update grid group size and position\n        this.grid.width = this.rect.getScaledWidth();\n        this.grid.height = this.rect.getScaledHeight();\n        this.grid.left = this.rect.left;\n        this.grid.top = this.rect.top;\n\n        // cache values needed for grid positioning\n        const halfWidth = this.grid.width / 2;\n        const thirdWidth = this.grid.width / 3;\n        const halfHeight = this.grid.height / 2;\n        const thirdHeight = this.grid.height / 3;\n\n        // lines are positioned relative to group center\n        // which means some confusing math is needed\n\n        const lines = this.grid.getObjects() as Line[];\n\n        // first vertical\n        lines[0].set({\n            x1: -(halfWidth - thirdWidth),\n            y1: -(halfHeight),\n            x2: -(halfWidth - thirdWidth),\n            y2: halfHeight,\n        });\n\n        // second vertical\n        lines[1].set({\n            x1: halfWidth - thirdWidth,\n            y1: -(halfHeight),\n            x2: halfWidth - thirdWidth,\n            y2: halfHeight\n        });\n\n        // first horizontal\n        lines[2].set({\n            x1: -(halfWidth),\n            y1: -(halfHeight - thirdHeight),\n            x2: halfWidth,\n            y2: -(halfHeight - thirdHeight)\n        });\n\n        // second horizontal\n        lines[3].set({\n            x1: -(halfWidth),\n            y1: halfHeight - thirdHeight,\n            x2: halfWidth,\n            y2: halfHeight - thirdHeight\n        });\n    }\n\n    private drawOverlay() {\n        if (!this.initiated) {\n            const topRect = new fabric.Rect({fill: 'rgba(0,0,0,0.6)', selectable: true, evented: false});\n            const rightRect = new fabric.Rect({fill: 'rgba(0,0,0,0.6)', selectable: true, evented: false});\n            const bottomRect = new fabric.Rect({fill: 'rgba(0,0,0,0.6)', selectable: true, evented: false});\n            const leftRect = new fabric.Rect({fill: 'rgba(0,0,0,0.6)', selectable: true, evented: false});\n\n            this.overlay = new fabric.Group([topRect, rightRect, bottomRect, leftRect], {\n                width: this.canvasState.original.width,\n                height: this.canvasState.original.height,\n                selectable: false,\n                evented: false,\n                name: 'crop.overlay'\n            });\n            this.canvas.fabric().add(this.overlay);\n            this.overlay.moveTo(1);\n        }\n\n        const groupLeftOffset = -(this.overlay.width / 2);\n        const groupTopOffset = -(this.overlay.height / 2);\n        const rects = this.overlay.getObjects();\n\n        rects[0].set({\n            left: groupLeftOffset,\n            top: groupTopOffset,\n            width: this.overlay.width,\n            height: this.rect.getScaledHeight() < 0 ? this.rect.top - Math.abs(this.rect.getScaledHeight()) : this.rect.top,\n        });\n\n        rects[1].set({\n            left: (this.rect.getScaledWidth() < 0 ? this.rect.left : this.rect.left + this.rect.getScaledWidth()) + groupLeftOffset,\n            top: this.rect.top + groupTopOffset,\n            width: this.rect.getScaledWidth() < 0 ? this.canvasState.original.width - (this.rect.left + this.rect.getScaledWidth()) - Math.abs(this.rect.getScaledWidth()) : this.canvasState.original.width - (this.rect.left + this.rect.getScaledWidth()),\n            height: this.rect.getScaledHeight(),\n        });\n\n        rects[2].set({\n            left: groupLeftOffset,\n            top: (this.rect.getScaledHeight() < 0 ? this.rect.top : this.rect.top + this.rect.getScaledHeight()) + groupTopOffset,\n            width: this.canvasState.original.width,\n            height: this.rect.getScaledHeight() < 0 ? this.canvasState.original.height - (this.rect.top) : this.canvasState.original.height - (this.rect.top + this.rect.getScaledHeight()),\n        });\n\n        rects[3].set({\n            left: groupLeftOffset,\n            top: this.rect.top + groupTopOffset,\n            width: this.rect.getScaledWidth() > 0 ? this.rect.left : this.rect.left - Math.abs(this.rect.getScaledWidth()),\n            height: this.rect.getScaledHeight(),\n        });\n    }\n\n    public changeAspectRatio(ratio: string) {\n        this.aspectRatio = ratio;\n        this.drawMainZone(ratio);\n        this.drawOverlay();\n        this.drawGrid();\n        this.canvas.render();\n    }\n\n    public getSize(): {width: number, height: number, left: number, top: number} {\n        return {\n            width: this.rect.getScaledWidth(),\n            height: this.rect.getScaledHeight(),\n            left: this.rect.left,\n            top: this.rect.top\n        };\n    }\n\n    /**\n     * Resize cropzone to specified dimensions.\n     */\n    public resize(width: number, height: number) {\n        this.aspectRatio = null;\n\n        this.rect.width = width > this.canvasState.original.width ? this.canvasState.original.width : width;\n        this.rect.height = height > this.canvasState.original.height ? this.canvasState.original.height : height;\n        this.rect.lockUniScaling = false;\n        this.rect.scaleX = 1;\n        this.rect.scaleY = 1;\n        this.rect.setCoords();\n\n        this.drawOverlay();\n        this.drawGrid();\n\n        this.canvas.render();\n    }\n}\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel, OpenPanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {ShapesToolService} from '../../../image-editor/tools/shapes/shapes-tool.service';\r\nimport {AddShape} from './shapes.actions';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface ShapesStateModel {\r\n    dirty: boolean;\r\n}\r\n\r\n@State<ShapesStateModel>({\r\n    name: 'shapes',\r\n    defaults: {\r\n        dirty: false,\r\n    }\r\n})\r\n@Injectable()\r\nexport class ShapesState extends BaseToolState<ShapesStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.SHAPES;\r\n\r\n    @Selector()\r\n    static dirty(state: ShapesStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected shapesTool: ShapesToolService,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<ShapesStateModel>) {\r\n        this.store.dispatch(new OpenPanel(DrawerName.OBJECT_SETTINGS));\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.SHAPES);\r\n        }\r\n        ctx.patchState({dirty: false});\r\n    }\r\n\r\n   cancelChanges(ctx: StateContext<ShapesStateModel>) {\r\n       this.store.dispatch(new CloseForePanel());\r\n       if (ctx.getState().dirty) {\r\n           this.history.reload();\r\n       }\r\n       ctx.patchState({dirty: false});\r\n   }\r\n\r\n    resetState(ctx: StateContext<ShapesStateModel>) {\r\n        ctx.setState({dirty: false});\r\n    }\r\n\r\n   @Action(AddShape)\r\n   addShape(ctx: StateContext<ShapesStateModel>, action: AddShape) {\r\n       ctx.patchState({dirty: true});\r\n       this.shapesTool.addBasicShape(action.shape);\r\n   }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {fabric} from 'fabric';\nimport {CanvasService} from '../../canvas/canvas.service';\nimport {BasicShape} from './default-shapes';\nimport {StickerCategory} from './default-stickers';\nimport {Settings} from '@common/core/config/settings.service';\nimport {Object as FObject} from 'fabric/fabric-impl';\nimport {ObjectNames} from '../../objects/object-names.enum';\n\n@Injectable()\nexport class ShapesToolService {\n    constructor(\n        private canvas: CanvasService,\n        private config: Settings\n    ) {}\n\n    public getShapeByName(name: string): BasicShape|null {\n        return this.config.get('pixie.tools.shapes.items').find(shape => {\n            return shape.name === name;\n        });\n    }\n\n    public addBasicShape(shape: string|BasicShape) {\n        if (typeof shape === 'string') {\n            shape = this.getShapeByName(shape);\n        }\n\n        const basicShape = shape as BasicShape;\n\n        const canvasWidth = this.canvas.fabric().getWidth(),\n            options = {...this.config.get('pixie.objectDefaults.basicShape'), ...basicShape.options},\n            size = canvasWidth / 2;\n\n        if (basicShape.name === 'circle') {\n            options.radius = size;\n        } else if (basicShape.name === 'ellipse') {\n            options.rx = size;\n            options.ry = size / 2;\n        } else {\n            options.width = size;\n            options.height = size;\n        }\n\n        let fabricShape: FObject;\n\n        if (basicShape.type === 'Path') {\n            fabricShape = new fabric[basicShape.type](options.path, {displayName: basicShape.name, ...options});\n        } else {\n            fabricShape = new fabric[basicShape.type](options);\n        }\n\n        this.addAndPositionSticker(fabricShape);\n    }\n\n    public addSticker(categoryName: string, name: number|string): Promise<any> {\n        const category = (this.config.get('pixie.tools.stickers.items') as StickerCategory[])\n            .find(cat => cat.name === categoryName);\n        if (category.type === 'svg') {\n            const url = this.getStickerUrl(category, name);\n            return this.addSvgSticker(url);\n        } else {\n            return this.addRegularSticker(category, name);\n        }\n    }\n\n    private addRegularSticker(category: StickerCategory, name: number|string): Promise<void> {\n        return new Promise(resolve => {\n            fabric.util.loadImage(this.getStickerUrl(category, name), img => {\n                const sticker = new fabric.Image(img);\n                this.addAndPositionSticker(sticker, ObjectNames.sticker);\n                resolve();\n            });\n        });\n    }\n\n    public addSvgSticker(url: string, objectName: {name: string} = ObjectNames.sticker, fitToScreen = true): Promise<void> {\n        return new Promise(resolve => {\n            fabric.loadSVGFromURL(url, (objects, options) => {\n                const sticker = fabric.util.groupSVGElements(objects, options);\n                this.addAndPositionSticker(sticker, objectName, fitToScreen);\n                resolve();\n            });\n        });\n    }\n\n    private addAndPositionSticker(sticker: FObject, objectName: {name: string} = ObjectNames.shape, fitToScreen = true) {\n        sticker.name = objectName.name;\n        sticker.set(this.config.get('pixie.objectDefaults.sticker'));\n        this.canvas.fabric().add(sticker);\n        this.canvas.fabric().setActiveObject(sticker);\n        if (fitToScreen) {\n            sticker.scaleToWidth(this.canvas.fabric().getWidth() / 4);\n        }\n        sticker.viewportCenter();\n        sticker.setCoords();\n        this.canvas.render();\n    }\n\n    public getStickerUrl(category: StickerCategory, stickerName: number|string): string {\n        const stickerUri = 'images/stickers/' + category.name + '/' + stickerName + '.' + category.type;\n        return this.config.getAssetUrl(stickerUri, true);\n    }\n\n    public getStickerCategoryUrl(category: StickerCategory) {\n        if (category.thumbnailUrl) return this.config.getAssetUrl(category.thumbnailUrl, true);\n        return this.getStickerUrl(category, 1);\n\n    }\n}\n","import {Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {CropToolService} from '../../../image-editor/tools/crop/crop-tool.service';\r\nimport {CropZoneService} from '../../../image-editor/tools/crop/crop-zone.service';\r\nimport {CanvasZoomService} from '../../../image-editor/canvas/canvas-zoom.service';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface CropStateModel {\r\n    dirty: boolean;\r\n}\r\n\r\nconst CROP_STATE_DEFAULTS: CropStateModel = {\r\n    dirty: true,\r\n};\r\n\r\n@State<CropStateModel>({\r\n    name: 'crop',\r\n    defaults: CROP_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class CropState extends BaseToolState<CropStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.CROP;\r\n\r\n    @Selector()\r\n    static dirty(state: CropStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n        protected cropTool: CropToolService,\r\n        protected cropZone: CropZoneService,\r\n        protected zoom: CanvasZoomService,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<CropStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        this.cropTool.apply(this.cropZone.getSize()).then(() => {\r\n            this.history.add(HistoryNames.CROP);\r\n            ctx.patchState(CROP_STATE_DEFAULTS);\r\n        });\r\n    }\r\n\r\n   cancelChanges(ctx: StateContext<CropStateModel>) {\r\n       this.store.dispatch(new CloseForePanel());\r\n       ctx.patchState(CROP_STATE_DEFAULTS);\r\n   }\r\n\r\n    resetState(ctx: StateContext<CropStateModel>) {\r\n        ctx.setState(CROP_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {MarkAsDirty} from './transform.actions';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface TransformStateModel {\r\n    dirty: boolean;\r\n}\r\n\r\nconst TRANSFORM_STATE_DEFAULTS: TransformStateModel = {\r\n    dirty: false,\r\n};\r\n\r\n@State<TransformStateModel>({\r\n    name: 'transform',\r\n    defaults: TRANSFORM_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class TransformState extends BaseToolState<TransformStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.TRANSFORM;\r\n\r\n    @Selector()\r\n    static dirty(state: TransformStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(MarkAsDirty)\r\n    markAsDirty(ctx: StateContext<TransformStateModel>) {\r\n        ctx.patchState({dirty: true});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<TransformStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.TRANSFORM);\r\n        }\r\n        ctx.patchState(TRANSFORM_STATE_DEFAULTS);\r\n    }\r\n\r\n   cancelChanges(ctx: StateContext<TransformStateModel>) {\r\n       this.store.dispatch(new CloseForePanel());\r\n       if (ctx.getState().dirty) {\r\n           this.history.reload();\r\n       }\r\n       ctx.patchState(TRANSFORM_STATE_DEFAULTS);\r\n   }\r\n\r\n    resetState(ctx: StateContext<TransformStateModel>) {\r\n        ctx.setState(TRANSFORM_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {MarkAsDirty, OpenFrameControls} from './frame.actions';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface FrameStateModel {\r\n    dirty: boolean;\r\n    controlsOpen: boolean;\r\n}\r\n\r\nconst FRAME_STATE_DEFAULTS: FrameStateModel = {\r\n    dirty: false,\r\n    controlsOpen: false\r\n};\r\n\r\n@State<FrameStateModel>({\r\n    name: 'frame',\r\n    defaults: FRAME_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class FrameState extends BaseToolState<FrameStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.FRAME;\r\n\r\n    @Selector()\r\n    static dirty(state: FrameStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    @Selector()\r\n    static controlsOpen(state: FrameStateModel) {\r\n        return state.controlsOpen;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(MarkAsDirty)\r\n    markAsDirty(ctx: StateContext<FrameStateModel>) {\r\n        ctx.patchState({dirty: true});\r\n    }\r\n\r\n    @Action(OpenFrameControls)\r\n    openFrameControls(ctx: StateContext<FrameStateModel>) {\r\n        ctx.patchState({controlsOpen: true});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<FrameStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.FRAME);\r\n        }\r\n\r\n        ctx.patchState(FRAME_STATE_DEFAULTS);\r\n    }\r\n\r\n   cancelChanges(ctx: StateContext<FrameStateModel>) {\r\n        if (ctx.getState().dirty) {\r\n           this.history.reload();\r\n        }\r\n\r\n        if (ctx.getState().controlsOpen) {\r\n            ctx.patchState({controlsOpen: false});\r\n        } else {\r\n            this.store.dispatch(new CloseForePanel());\r\n            ctx.patchState(FRAME_STATE_DEFAULTS);\r\n        }\r\n   }\r\n\r\n    resetState(ctx: StateContext<FrameStateModel>) {\r\n        ctx.setState(FRAME_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {CloseBrushControls, MarkAsDirty, OpenBrushControls} from './draw.actions';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface DrawStateModel {\r\n    dirty: boolean;\r\n    brushControlsOpen: boolean;\r\n}\r\n\r\nconst DRAW_STATE_DEFAULTS: DrawStateModel = {\r\n    dirty: false,\r\n    brushControlsOpen: false,\r\n};\r\n\r\n@State<DrawStateModel>({\r\n    name: 'draw',\r\n    defaults: DRAW_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class DrawState extends BaseToolState<DrawStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.DRAW;\r\n\r\n    @Selector()\r\n    static dirty(state: DrawStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    @Selector()\r\n    static brushControlsOpen(state: DrawStateModel) {\r\n        return state.brushControlsOpen;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(MarkAsDirty)\r\n    markAsDirty(ctx: StateContext<DrawStateModel>) {\r\n        ctx.patchState({dirty: true});\r\n    }\r\n\r\n    @Action(OpenBrushControls)\r\n    openBrushControls(ctx: StateContext<DrawStateModel>) {\r\n        ctx.patchState({brushControlsOpen: true});\r\n    }\r\n\r\n    @Action(CloseBrushControls)\r\n    closeBrushControls(ctx: StateContext<DrawStateModel>) {\r\n        ctx.patchState({brushControlsOpen: false});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<DrawStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.DRAW);\r\n        }\r\n        ctx.patchState(DRAW_STATE_DEFAULTS);\r\n    }\r\n\r\n   cancelChanges(ctx: StateContext<DrawStateModel>) {\r\n       if ( ! ctx.getState().brushControlsOpen) {\r\n           this.store.dispatch(new CloseForePanel());\r\n       }\r\n\r\n       if (ctx.getState().dirty) {\r\n           this.history.reload();\r\n       }\r\n\r\n       ctx.patchState(DRAW_STATE_DEFAULTS);\r\n   }\r\n\r\n    resetState(ctx: StateContext<DrawStateModel>) {\r\n        ctx.setState(DRAW_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {fabric} from 'fabric';\r\nimport {Injectable} from '@angular/core';\r\nimport {ActiveObjectService} from '../../canvas/active-object/active-object.service';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {Rect} from 'fabric/fabric-impl';\r\nimport {ExportToolService} from '../export/export-tool.service';\r\nimport {CanvasStateService} from '../../canvas/canvas-state.service';\r\n\r\n@Injectable()\r\nexport class RoundToolService {\r\n    private previewRect: Rect;\r\n\r\n    constructor(\r\n        private activeObject: ActiveObjectService,\r\n        private canvas: CanvasService,\r\n        private state: CanvasStateService,\r\n        private saveTool: ExportToolService,\r\n    ) {}\r\n\r\n    public apply(radius: number) {\r\n        this.updatePreview(radius);\r\n        this.state.fabric.remove(this.previewRect);\r\n\r\n        this.state.fabric.clipTo = ctx => {\r\n            const retina = this.state.fabric.getRetinaScaling();\r\n\r\n            // TODO: maybe add retina scaling later if there are issues\r\n\r\n            this.previewRect.set({\r\n                width: this.previewRect.width,\r\n                height: this.previewRect.height,\r\n                rx: this.previewRect.rx,\r\n                ry: this.previewRect.ry,\r\n                stroke: null,\r\n            });\r\n\r\n            this.previewRect.render(ctx);\r\n            this.state.fabric.clipTo = null;\r\n        };\r\n\r\n        const data = this.saveTool.getDataUrl();\r\n        this.state.fabric.clear();\r\n        this.hidePreview();\r\n\r\n        return this.canvas.loadMainImage(data);\r\n    }\r\n\r\n    public getPreviewRadius(): number {\r\n        return this.previewRect.rx;\r\n    }\r\n\r\n    public updatePreview(radius: number) {\r\n        this.previewRect.set({\r\n            rx: radius, ry: radius\r\n        });\r\n\r\n        this.canvas.render();\r\n    };\r\n\r\n    public showPreview() {\r\n        this.previewRect = new fabric.Rect({\r\n            width: this.state.original.width,\r\n            height: this.state.original.height,\r\n            rx: 50,\r\n            ry: 50,\r\n            objectCaching: false,\r\n            fill: 'transparent',\r\n            name: 'round.rect',\r\n            stroke: 'rgba(255,255,255,0.8)',\r\n            strokeWidth: 3,\r\n            strokeDashArray: [4,4],\r\n            selectable: false,\r\n            evented: false,\r\n        });\r\n\r\n        this.state.fabric.add(this.previewRect);\r\n        this.previewRect.moveTo(99);\r\n        this.previewRect.viewportCenter();\r\n        this.canvas.render();\r\n    }\r\n\r\n    public hidePreview() {\r\n        if ( ! this.previewRect) return;\r\n        this.state.fabric.remove(this.previewRect);\r\n        this.canvas.render();\r\n        this.previewRect = null;\r\n    }\r\n}","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel, OpenPanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {MarkAsDirty, OpenStickerCategory} from './stickers.actions';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {StickerCategory} from '../../../image-editor/tools/shapes/default-stickers';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface StickersStateModel {\r\n    dirty: boolean;\r\n    activeCategory: StickerCategory;\r\n}\r\n\r\nconst STICKER_STATE_DEFAULTS = {\r\n    dirty: false,\r\n    activeCategory: null,\r\n};\r\n\r\n@State<StickersStateModel>({\r\n    name: 'stickers',\r\n    defaults: STICKER_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class StickersState extends BaseToolState<StickersStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.STICKERS;\r\n\r\n    @Selector()\r\n    static dirty(state: StickersStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    @Selector()\r\n    static activeCategory(state: StickersStateModel) {\r\n        return state.activeCategory;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected history: HistoryToolService,\r\n        protected actions$: Actions,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(MarkAsDirty)\r\n    markAsDirty(ctx: StateContext<StickersStateModel>) {\r\n        ctx.patchState({dirty: true});\r\n    }\r\n\r\n    @Action(OpenStickerCategory)\r\n    openStickerCategory(ctx: StateContext<StickersStateModel>, action: OpenStickerCategory) {\r\n        ctx.patchState({activeCategory: action.category});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<StickersStateModel>) {\r\n        this.store.dispatch(new OpenPanel(DrawerName.OBJECT_SETTINGS));\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.STICKERS);\r\n        }\r\n        ctx.patchState(STICKER_STATE_DEFAULTS);\r\n    }\r\n\r\n    cancelChanges(ctx: StateContext<StickersStateModel>) {\r\n        if ( ! ctx.getState().activeCategory) {\r\n            this.store.dispatch(new CloseForePanel());\r\n        }\r\n        if (ctx.getState().dirty) {\r\n            this.history.reload();\r\n        }\r\n        ctx.patchState(STICKER_STATE_DEFAULTS);\r\n    }\r\n\r\n    resetState(ctx: StateContext<StickersStateModel>) {\r\n        ctx.setState(STICKER_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {RoundToolService} from '../../../image-editor/tools/round/round-tool.service';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface CornersStateModel {\r\n    dirty: boolean;\r\n}\r\n\r\nconst CORNER_STATE_DEFAULTS = {\r\n    dirty: true,\r\n};\r\n\r\n@State<CornersStateModel>({\r\n    name: 'corners',\r\n    defaults: CORNER_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class CornersState extends BaseToolState<CornersStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.CORNERS;\r\n\r\n    @Selector()\r\n    static dirty(state: CornersStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected actions$: Actions,\r\n        protected history: HistoryToolService,\r\n        protected roundTool: RoundToolService,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<CornersStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        this.roundTool.apply(this.roundTool.getPreviewRadius()).then(() => {\r\n            this.history.add(HistoryNames.CORNERS);\r\n        });\r\n        ctx.patchState(CORNER_STATE_DEFAULTS);\r\n    }\r\n\r\n    cancelChanges(ctx: StateContext<CornersStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        ctx.patchState(CORNER_STATE_DEFAULTS);\r\n    }\r\n\r\n    resetState(ctx: StateContext<CornersStateModel>) {\r\n        ctx.setState(CORNER_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {Action, Actions, NgxsOnInit, Selector, State, StateContext, Store} from '@ngxs/store';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {CloseForePanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {MarkAsDirty} from './background.actions';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {Injectable} from '@angular/core';\r\n\r\ninterface BackgroundStateModel {\r\n    dirty: boolean;\r\n}\r\n\r\nconst BACKGROUND_STATE_DEFAULTS = {\r\n    dirty: true,\r\n};\r\n\r\n@State<BackgroundStateModel>({\r\n    name: 'background',\r\n    defaults: BACKGROUND_STATE_DEFAULTS\r\n})\r\n@Injectable()\r\nexport class BackgroundState extends BaseToolState<BackgroundStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.BACKGROUND;\r\n\r\n    @Selector()\r\n    static dirty(state: BackgroundStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        protected store: Store,\r\n        protected actions$: Actions,\r\n        protected history: HistoryToolService,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(MarkAsDirty)\r\n    markAsDirty(ctx: StateContext<BackgroundStateModel>) {\r\n        ctx.patchState({dirty: true});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<BackgroundStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.BACKGROUND);\r\n        }\r\n        ctx.patchState(BACKGROUND_STATE_DEFAULTS);\r\n    }\r\n\r\n    cancelChanges(ctx: StateContext<BackgroundStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        if (ctx.getState().dirty) {\r\n            this.history.reload();\r\n        }\r\n        ctx.patchState(BACKGROUND_STATE_DEFAULTS);\r\n    }\r\n\r\n    resetState(ctx: StateContext<BackgroundStateModel>) {\r\n        ctx.setState(BACKGROUND_STATE_DEFAULTS);\r\n    }\r\n}\r\n","import {Action, NgxsAfterBootstrap, Selector, State, StateContext} from '@ngxs/store';\r\nimport {\r\n    CloseEditor,\r\n    CloseForePanel,\r\n    ObjectDeselected,\r\n    ObjectSelected,\r\n    OpenEditor,\r\n    OpenPanel,\r\n    SetZoom\r\n} from './editor-state-actions';\r\nimport {\r\n    ObjectsState,\r\n    ObjectsStateModel\r\n} from '../../image-editor-ui/state/objects/objects.state';\r\nimport {DrawerName} from '../../image-editor-ui/toolbar-controls/drawers/drawer-name.enum';\r\nimport {FilterState} from '../../image-editor-ui/state/filter/filter.state';\r\nimport {EditorMode} from '../enums/editor-mode.enum';\r\nimport {NavItem, PixieConfig} from '../default-settings';\r\nimport {NavPosition} from '../enums/control-positions.enum';\r\nimport {ResizeState} from '../../image-editor-ui/state/resize/resize.state';\r\nimport {CropState} from '../../image-editor-ui/state/crop/crop.state';\r\nimport {ShapesState} from '../../image-editor-ui/state/shapes/shapes.state';\r\nimport {TransformState} from '../../image-editor-ui/state/transform/transform.state';\r\nimport {FrameState} from '../../image-editor-ui/state/frame/frame.state';\r\nimport {DrawState} from '../../image-editor-ui/state/draw/draw.state';\r\nimport {StickersState} from '../../image-editor-ui/state/stickers/stickers.state';\r\nimport {CornersState} from '../../image-editor-ui/state/corners/corners.state';\r\nimport {BackgroundState} from '../../image-editor-ui/state/background/background.state';\r\nimport {TextState} from '../../image-editor-ui/state/text/text.state';\r\nimport {ActiveObjectService} from '../canvas/active-object/active-object.service';\r\nimport {Settings} from '@common/core/config/settings.service';\r\nimport {BreakpointsService} from '@common/core/ui/breakpoints.service';\r\nimport {Injectable} from '@angular/core';\r\nimport {Breakpoints} from '@angular/cdk/layout';\r\n\r\ninterface EditorStateModel {\r\n    visible?: boolean;\r\n    mode: EditorMode;\r\n    hideToolbar: boolean;\r\n    activePanel: DrawerName;\r\n    navItems: NavItem[];\r\n    navPosition: NavPosition;\r\n    objectSettings?: ObjectsStateModel;\r\n    activeObjIsText?: boolean;\r\n    activeObjIsSvg?: boolean;\r\n    activeObjIsImage?: boolean;\r\n    activeObjId?: string;\r\n    zoom: number;\r\n}\r\n\r\n@State<EditorStateModel>({\r\n    name: 'imageEditor',\r\n    defaults: {\r\n        mode: EditorMode.INLINE,\r\n        hideToolbar: false,\r\n        activePanel: DrawerName.NAVIGATION,\r\n        navItems: [],\r\n        navPosition: NavPosition.TOP,\r\n        activeObjIsText: false,\r\n        activeObjIsSvg: false,\r\n        activeObjIsImage: false,\r\n        activeObjId: null,\r\n        zoom: 100,\r\n    },\r\n    children: [\r\n        FilterState,\r\n        ResizeState,\r\n        CropState,\r\n        TransformState,\r\n        DrawState,\r\n        TextState,\r\n        ShapesState,\r\n        StickersState,\r\n        FrameState,\r\n        CornersState,\r\n        BackgroundState,\r\n        ObjectsState\r\n    ],\r\n})\r\n@Injectable()\r\nexport class EditorState implements NgxsAfterBootstrap {\r\n    @Selector()\r\n    static visible(state: EditorStateModel) {\r\n        return state.visible;\r\n    }\r\n\r\n    @Selector()\r\n    static mode(state: EditorStateModel) {\r\n        return state.mode;\r\n    }\r\n\r\n    @Selector()\r\n    static navItems(state: EditorStateModel) {\r\n        return state.navItems;\r\n    }\r\n\r\n    @Selector()\r\n    static navPosition(state: EditorStateModel) {\r\n        return state.navPosition;\r\n    }\r\n\r\n    @Selector()\r\n    static toolbarHidden(state: EditorStateModel) {\r\n        return state.hideToolbar;\r\n    }\r\n\r\n    @Selector()\r\n    static activePanel(state: EditorStateModel) {\r\n        return state.activePanel;\r\n    }\r\n\r\n    @Selector()\r\n    static dirty(state: EditorStateModel) {\r\n        const subState = state[state.activePanel];\r\n        return subState.dirty;\r\n    }\r\n\r\n    @Selector()\r\n    static zoom(state: EditorStateModel) {\r\n        return state.zoom;\r\n    }\r\n\r\n    @Selector()\r\n    static activeObjIsText(state: EditorStateModel) {\r\n        return state.activeObjIsText;\r\n    }\r\n\r\n    @Selector()\r\n    static activeObjIsSvg(state: EditorStateModel) {\r\n        return state.activeObjIsSvg;\r\n    }\r\n\r\n    @Selector()\r\n    static activeObjIsImage(state: EditorStateModel) {\r\n        return state.activeObjIsImage;\r\n    }\r\n\r\n    @Selector()\r\n    static activeObjId(state: EditorStateModel) {\r\n        return state.activeObjId;\r\n    }\r\n\r\n    constructor(\r\n        private config: Settings,\r\n        private breakpoints: BreakpointsService,\r\n        private activeObject: ActiveObjectService,\r\n    ) {}\r\n\r\n    ngxsAfterBootstrap(ctx: StateContext<EditorStateModel>) {\r\n        this.listenToConfigChange(ctx);\r\n        this.listenToBreakpointChange(ctx);\r\n    }\r\n\r\n    @Action(OpenEditor)\r\n    openEditor(ctx: StateContext<EditorStateModel>) {\r\n        ctx.patchState({visible: true});\r\n        this.config.set('pixie.ui.visible', true);\r\n        this.executeCallback('onOpen');\r\n    }\r\n\r\n    @Action(CloseEditor)\r\n    closeEditor(ctx: StateContext<EditorStateModel>, {executeCallback}: CloseEditor) {\r\n        let shouldClose = this.config.get('pixie.ui.allowEditorClose');\r\n        if (executeCallback) {\r\n            shouldClose = this.executeCallback('onClose') !== false;\r\n        }\r\n        if (shouldClose) {\r\n            ctx.patchState({visible: false});\r\n            this.config.set('pixie.ui.visible', false);\r\n        }\r\n    }\r\n\r\n    @Action(OpenPanel)\r\n    openPanel(ctx: StateContext<EditorStateModel>, action: OpenPanel) {\r\n        ctx.patchState({\r\n            activePanel: action.panel,\r\n        });\r\n    }\r\n\r\n    @Action(CloseForePanel)\r\n    closeForePanel(ctx: StateContext<EditorStateModel>) {\r\n        // navigation panel should always stay open\r\n        ctx.patchState({activePanel: DrawerName.NAVIGATION});\r\n    }\r\n\r\n    @Action(ObjectSelected)\r\n    objectSelected(ctx: StateContext<EditorStateModel>, action: ObjectSelected) {\r\n        const state = this.getActiveObjState();\r\n\r\n        // only open settings panel if selection event originated from\r\n        // user clicking or tapping object on the canvas and not from\r\n        // selecting object programmatically in the app\r\n        if (action.fromUserAction && ctx.getState().activePanel === DrawerName.NAVIGATION) {\r\n            state.activePanel = DrawerName.OBJECT_SETTINGS;\r\n        }\r\n\r\n        ctx.patchState(state);\r\n\r\n        // sync active object form, when new object is selected\r\n        this.activeObject.syncForm();\r\n    }\r\n\r\n    @Action(ObjectDeselected)\r\n    objectDeselected(ctx: StateContext<EditorStateModel>) {\r\n        const state = this.getActiveObjState();\r\n\r\n        if (ctx.getState().activePanel === DrawerName.OBJECT_SETTINGS && !ctx.getState().objectSettings.dirty) {\r\n            state.activePanel = DrawerName.NAVIGATION;\r\n        }\r\n\r\n        ctx.patchState(state);\r\n\r\n        // sync active object form, when object is deselected\r\n        this.activeObject.syncForm();\r\n    }\r\n\r\n    @Action(SetZoom)\r\n    setZoom(ctx: StateContext<EditorStateModel>, {zoom}: SetZoom) {\r\n        ctx.patchState({zoom});\r\n    }\r\n\r\n    private executeCallback(name: 'onClose'|'onOpen') {\r\n        const callback = this.config.get('pixie.' + name) as Function;\r\n        return callback && callback();\r\n    }\r\n\r\n    private listenToBreakpointChange(ctx: StateContext<EditorStateModel>) {\r\n        this.breakpoints.observe(Breakpoints.XSmall).subscribe(() => {\r\n            ctx.patchState({\r\n                navPosition: this.getNavPosition()\r\n            });\r\n        });\r\n    }\r\n\r\n    private listenToConfigChange(ctx: StateContext<EditorStateModel>) {\r\n        this.config.all$().subscribe(() => {\r\n            const config = this.config.get('pixie') as PixieConfig;\r\n            ctx.patchState({\r\n                mode: config.ui.mode,\r\n                hideToolbar: config.ui.toolbar.hide,\r\n                visible: config.ui.visible,\r\n                navItems: config.ui.nav.items,\r\n                navPosition: this.getNavPosition(),\r\n            });\r\n        });\r\n    }\r\n\r\n    private getNavPosition(): NavPosition {\r\n        const defaultPos = this.config.get('pixie.ui.nav.position', NavPosition.TOP);\r\n        return (this.breakpoints.isMobile$.value && defaultPos !== NavPosition.NONE) ? NavPosition.BOTTOM : defaultPos;\r\n    }\r\n\r\n    private getActiveObjState() {\r\n        const obj = this.activeObject.get();\r\n\r\n        const state = {\r\n            activeObjId: null,\r\n            activeObjIsText: false,\r\n            activeObjIsSvg: false,\r\n        } as EditorStateModel;\r\n\r\n        if (obj) {\r\n            state.activeObjId = obj.data.id;\r\n            state.activeObjIsText = obj.type === 'i-text';\r\n            state.activeObjIsSvg = obj.type === 'group' && obj['svgUid'];\r\n            state.activeObjIsImage = obj.type === 'image';\r\n        }\r\n\r\n        return state;\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {BreakpointObserver, Breakpoints} from '@angular/cdk/layout';\r\nimport {BehaviorSubject} from 'rxjs';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class BreakpointsService {\r\n    public isMobile$ = new BehaviorSubject(false);\r\n    public isTablet$ = new BehaviorSubject(false);\r\n\r\n    constructor(private breakpointObserver: BreakpointObserver) {\r\n        this.breakpointObserver.observe(Breakpoints.Handset).subscribe(result => {\r\n            this.isMobile$.next(result.matches);\r\n        });\r\n\r\n        this.breakpointObserver.observe(Breakpoints.Tablet).subscribe(result => {\r\n            this.isTablet$.next(result.matches);\r\n        });\r\n    }\r\n\r\n    public observe(value: string) {\r\n        return this.breakpointObserver.observe(value);\r\n    }\r\n}\r\n","import {State, Action, Selector, StateContext, Store, NgxsOnInit, Actions} from '@ngxs/store';\r\nimport {AddText} from './text.actions';\r\nimport {TextToolService} from '../../../image-editor/tools/text/text-tool.service';\r\nimport {CloseForePanel, OpenPanel} from '../../../image-editor/state/editor-state-actions';\r\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\r\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\r\nimport {BaseToolState} from '../base-tool.state';\r\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\r\nimport {Injectable} from '@angular/core';\r\n\r\nexport interface TextStateModel {\r\n    dirty: boolean;\r\n}\r\n\r\nconst TEXT_STATE_DEFAULTS = {\r\n    dirty: false,\r\n};\r\n\r\n@State<TextStateModel>({\r\n    name: 'text',\r\n    defaults: TEXT_STATE_DEFAULTS,\r\n})\r\n@Injectable()\r\nexport class TextState extends BaseToolState<TextStateModel> implements NgxsOnInit {\r\n    protected toolName = DrawerName.TEXT;\r\n\r\n    @Selector()\r\n    public static dirty(state: TextStateModel) {\r\n        return state.dirty;\r\n    }\r\n\r\n    constructor(\r\n        private textTool: TextToolService,\r\n        private store: Store,\r\n        private history: HistoryToolService,\r\n        protected actions$: Actions,\r\n    ) {\r\n        super();\r\n    }\r\n\r\n    @Action(AddText)\r\n    public add(ctx: StateContext<TextStateModel>, action: AddText) {\r\n        this.textTool.add(action.text);\r\n        ctx.setState({dirty: true});\r\n    }\r\n\r\n    applyChanges(ctx: StateContext<TextStateModel>) {\r\n        this.store.dispatch(new OpenPanel(DrawerName.OBJECT_SETTINGS));\r\n        if (ctx.getState().dirty) {\r\n            this.history.add(HistoryNames.TEXT);\r\n        }\r\n        ctx.patchState(TEXT_STATE_DEFAULTS);\r\n    }\r\n\r\n    cancelChanges(ctx: StateContext<TextStateModel>) {\r\n        this.store.dispatch(new CloseForePanel());\r\n        if (ctx.getState().dirty) {\r\n            this.history.reload();\r\n        }\r\n        ctx.patchState(TEXT_STATE_DEFAULTS);\r\n    }\r\n\r\n    resetState(ctx: StateContext<TextStateModel>) {\r\n        ctx.setState(TEXT_STATE_DEFAULTS);\r\n    }\r\n}\r\n","export class SetResizeDimensions {\r\n    static readonly type = '[Editor.Resize] Set Resize Dimensions';\r\n    constructor(public params: {\r\n        width: number,\r\n        height: number,\r\n        usePercentages: boolean,\r\n        maintainAspectRatio: boolean\r\n    }) {}\r\n}","export class AddShape {\r\n    static readonly type = '[Editor.Shapes] Add Shape';\r\n    constructor(public shape: string) {}\r\n}","export class MarkAsDirty {\r\n    static readonly type = '[Editor.Transform] Mark as Dirty';\r\n}\r\n","export class MarkAsDirty {\r\n    static readonly type = '[Editor.Frame] Mark as Dirty';\r\n}\r\n\r\nexport class OpenFrameControls {\r\n    static readonly type = '[Editor.Frame] Open Frame Controls';\r\n}\r\n","export class MarkAsDirty {\r\n    static readonly type = '[Editor.Draw] Mark as Dirty';\r\n}\r\n\r\nexport class OpenBrushControls {\r\n    static readonly type = '[Editor.Draw] Open Brush Controls';\r\n}\r\n\r\nexport class CloseBrushControls {\r\n    static readonly type = '[Editor.Draw] Close Brush Controls';\r\n}\r\n\r\n","import {StickerCategory} from '../../../image-editor/tools/shapes/default-stickers';\r\n\r\nexport class OpenStickerCategory {\r\n    static readonly type = '[Editor.Stickers] Open Sticker Category';\r\n    constructor(public category: StickerCategory) {}\r\n}\r\n\r\nexport class MarkAsDirty {\r\n    static readonly type = '[Editor.Stickers] Mark as Dirty';\r\n}\r\n","export class MarkAsDirty {\r\n    static readonly type = '[Editor.Background] Mark as Dirty';\r\n}\r\n","export class AddText {\r\n  public static readonly type = '[Text] Add';\r\n  constructor(public text?: string) {}\r\n}\r\n","export interface UploadInputConfig {\r\n    types?: UploadInputTypes[];\r\n    extensions?: string[];\r\n    multiple?: boolean;\r\n    directory?: boolean;\r\n}\r\n\r\nexport enum UploadInputTypes {\r\n    image = 'image/*',\r\n    audio = 'audio/*',\r\n    video = 'video/mp4,video/mpeg,video/x-m4v,video/*',\r\n}\r\n","export function extensionFromFilename(fullFileName: string) {\r\n    const re = /(?:\\.([^.]+))?$/;\r\n    return re.exec(fullFileName)[1];\r\n}\r\n","import { getFileMime } from './utils/get-file-mime';\r\nimport { extensionFromFilename } from './utils/extension-from-filename';\r\n\r\nexport class UploadedFile {\r\n    name: string;\r\n    relativePath: string;\r\n    size: number;\r\n    mime: string;\r\n    extension: string;\r\n    native: File;\r\n    lastModified: number;\r\n    url: string|null = null;\r\n\r\n    constructor(file: File, relativePath?: string) {\r\n        this.name = file.name;\r\n        this.size = file.size;\r\n        this.mime = getFileMime(file);\r\n        this.lastModified = file.lastModified;\r\n        this.extension = extensionFromFilename(file.name);\r\n        this.native = file;\r\n        this.relativePath = relativePath || file.webkitRelativePath || null;\r\n    }\r\n\r\n    public getData(): Promise<string> {\r\n        return new Promise(resolve => {\r\n            const reader = new FileReader();\r\n\r\n            reader.addEventListener('load', () => {\r\n                resolve(reader.result as string);\r\n            });\r\n\r\n            if (this.extension === 'json') {\r\n                reader.readAsText(this.native);\r\n            } else {\r\n                reader.readAsDataURL(this.native);\r\n            }\r\n        });\r\n    }\r\n}\r\n","import { extensionFromFilename } from './extension-from-filename';\r\n\r\nexport function getFileMime(file: File) {\r\n    const extensionsToMime = {\r\n        'md': 'text/markdown',\r\n        'markdown': 'text/markdown',\r\n        'mp4': 'video/mp4',\r\n        'mp3': 'audio/mp3',\r\n        'svg': 'image/svg+xml',\r\n        'jpg': 'image/jpeg',\r\n        'png': 'image/png',\r\n        'gif': 'image/gif',\r\n        'yaml': 'text/yaml',\r\n        'yml': 'text/yaml'\r\n    };\r\n\r\n    const fileExtension = file.name ? extensionFromFilename(file.name) : null;\r\n\r\n    // check if mime type is set in the file object\r\n    if (file.type) {\r\n        return file.type;\r\n    }\r\n\r\n    // see if we can map extension to a mime type\r\n    if (fileExtension && extensionsToMime[fileExtension]) {\r\n        return extensionsToMime[fileExtension];\r\n    }\r\n\r\n    return null;\r\n}\r\n","import { createUploadInput } from './create-upload-input';\r\nimport { UploadedFile } from '../uploaded-file';\r\nimport { UploadInputConfig } from '../upload-input-config';\r\n\r\n/**\r\n * Open browser dialog for uploading files and\r\n * resolve promise with uploaded files.\r\n */\r\nexport function openUploadWindow(config: UploadInputConfig = {}): Promise<UploadedFile[]> {\r\n    return new Promise(resolve => {\r\n        const input = createUploadInput(config);\r\n\r\n        input.onchange = (e) => {\r\n            const fileList = e.target['files'] as FileList,\r\n                uploads = Array.from(fileList)\r\n                .map(file => new UploadedFile(file));\r\n\r\n            resolve(uploads);\r\n            input.remove();\r\n        };\r\n\r\n        document.body.appendChild(input);\r\n        input.click();\r\n    });\r\n}\r\n","import { UploadInputConfig } from '../upload-input-config';\r\n\r\n/**\r\n * Create a html5 file upload input element.\r\n */\r\nexport function createUploadInput(config: UploadInputConfig = {}): HTMLElement {\r\n    const old = document.querySelector('#hidden-file-upload-input');\r\n    if (old) old.remove();\r\n\r\n    const input = document.createElement('input');\r\n    input.type = 'file';\r\n    input.multiple = config.multiple;\r\n    input.classList.add('hidden');\r\n    input.style.display = 'none';\r\n    input.style.visibility = 'hidden';\r\n    input.id = 'hidden-file-upload-input';\r\n\r\n    const accept = [];\r\n\r\n    if (config.extensions) {\r\n        config.extensions = config.extensions.map(e => {\r\n            return e.startsWith('.') ? e : '.' + e;\r\n        });\r\n        accept.push(config.extensions.join(','));\r\n    }\r\n\r\n    if (config.types) {\r\n        accept.push(config.types.join(','));\r\n    }\r\n\r\n   if (accept.length) {\r\n        input.accept = accept.join(',');\r\n   }\r\n\r\n    if (config.directory) {\r\n        input.webkitdirectory = true;\r\n    }\r\n\r\n    document.body.appendChild(input);\r\n\r\n    return input;\r\n}\r\n","import { Settings } from '../../core/config/settings.service';\r\nimport { Toast } from '../../core/ui/toast.service';\r\nimport { UploadValidation } from './validations/upload-validation';\r\nimport { UploadedFile } from '../uploaded-file';\r\nimport { Translations } from '../../core/translations/translations.service';\r\nimport {Injectable} from '@angular/core';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport abstract class UploadValidator {\r\n    protected validations: UploadValidation[] = [];\r\n    public showToast: boolean;\r\n\r\n    constructor(\r\n        protected settings: Settings,\r\n        protected toast: Toast,\r\n        protected i18n: Translations\r\n    ) {}\r\n\r\n    /**\r\n     * Return true of file passes all validations.\r\n     */\r\n    public validate(file: UploadedFile): {failed: boolean, errorMessage?: string} {\r\n        if ( ! this.validations.length) this.initValidations();\r\n\r\n        const failed = this.validations.find(validation => {\r\n            return validation.fails(file);\r\n        });\r\n\r\n        if (failed && this.showToast) {\r\n            this.openErrorToast(failed.errorMessage);\r\n        }\r\n\r\n        return {failed: !!failed, errorMessage: failed ? failed.errorMessage : null};\r\n    }\r\n\r\n    /**\r\n     * Validate file and show error message in toast.\r\n     */\r\n    public validateWithToast(file: UploadedFile) {\r\n        const response = this.validate(file);\r\n        if (response.failed) {\r\n            this.openErrorToast(response.errorMessage);\r\n        }\r\n        return response;\r\n    }\r\n\r\n    /**\r\n     * Show specified error message in toast.\r\n     */\r\n    protected openErrorToast(message: string) {\r\n        this.toast.open(message);\r\n    }\r\n\r\n    /**\r\n     * Can't init validators in constructor, because ngxs\r\n     * store injects do not wait for angular APP_INITIALIZER\r\n     */\r\n    protected abstract initValidations();\r\n}\r\n","import { UploadedFile } from '../../uploaded-file';\r\n\r\nexport abstract class UploadValidation {\r\n    public errorMessage: string;\r\n    abstract fails(file: UploadedFile): boolean;\r\n\r\n    public passes(file: UploadedFile) {\r\n        return ! this.fails(file);\r\n    }\r\n}\r\n","export const spaceUnits = [\r\n    'bytes',\r\n    'KB',\r\n    'MB',\r\n    'GB',\r\n    'TB',\r\n    'PB'\r\n];\r\n","import { spaceUnits } from './space-units';\r\n\r\nexport function prettyBytes(bytes: number, precision?: number|string): string|null {\r\n    if (isNaN(parseFloat(String(bytes))) || ! isFinite(bytes)) return null;\r\n\r\n    let unitKey = 0;\r\n    while (bytes >= 1024) {\r\n        bytes /= 1024;\r\n        unitKey ++;\r\n    }\r\n\r\n    let unit = spaceUnits[unitKey];\r\n\r\n    if ( ! precision) {\r\n        precision = getPrecision(unit);\r\n    }\r\n\r\n    if (unit === 'bytes' && bytes < 2) {\r\n        unit = 'byte';\r\n    }\r\n\r\n    return parseFloat(bytes.toFixed(+precision).toString()).toString() + ' ' + unit;\r\n}\r\n\r\nfunction getPrecision(unit: string): number {\r\n    switch (unit) {\r\n        case 'MB':\r\n            return 1;\r\n        case 'GB':\r\n        case 'TB':\r\n        case 'PB':\r\n            return 2;\r\n        default:\r\n            return 0;\r\n    }\r\n}\r\n","import { UploadedFile } from '../../uploaded-file';\r\nimport { UploadValidation } from './upload-validation';\r\nimport {Translations} from '@common/core/translations/translations.service';\r\nimport {prettyBytes} from '@common/core/utils/pretty-bytes';\r\n\r\nexport class FileSizeValidation extends UploadValidation {\r\n    constructor(\r\n        protected params: {maxSize: number},\r\n        protected i18n: Translations\r\n    ) {\r\n        super();\r\n\r\n        this.errorMessage = this.i18n.t(\r\n            'Maximum file size is :number',\r\n            {number: prettyBytes(+this.params.maxSize)}\r\n        );\r\n    }\r\n\r\n    public fails(file: UploadedFile) {\r\n        return this.params.maxSize < file.size;\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport {convertToBytes} from '@common/core/utils/convertToBytes';\r\nimport {UploadValidator} from '@common/uploads/validation/upload-validator';\r\nimport {FileSizeValidation} from '@common/uploads/validation/validations/file-size-validation';\r\nimport {AllowedExtensionsValidation} from '@common/uploads/validation/validations/allowed-extensions-validation';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class ImportToolValidator extends UploadValidator {\r\n    protected readonly DEFAULT_MAX_FILE_SIZE_MB = 10;\r\n    public showToast = true;\r\n\r\n    protected initValidations() {\r\n        this.validations.push(\r\n            new FileSizeValidation(\r\n                {maxSize: this.getMaxFileSize()},\r\n                this.i18n\r\n            )\r\n        );\r\n\r\n        const allowedExtensions = this.getAllowedExtensions();\r\n\r\n        if (allowedExtensions && allowedExtensions.length) {\r\n            this.validations.push(new AllowedExtensionsValidation(\r\n                {extensions: allowedExtensions}, this.i18n\r\n            ));\r\n        }\r\n    }\r\n\r\n    protected getMaxFileSize(): number {\r\n        return this.settings.get(\r\n            'pixie.tools.import.maxFileSize',\r\n            convertToBytes(this.DEFAULT_MAX_FILE_SIZE_MB, 'MB')\r\n        );\r\n    }\r\n\r\n    protected getAllowedExtensions() {\r\n        return this.settings.get('pixie.tools.import.validExtensions');\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {HistoryToolService} from '../../history/history-tool.service';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {Toast} from 'common/core/ui/toast.service';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {Image} from 'fabric/fabric-impl';\r\nimport {FrameToolService} from '../frame/frame-tool.service';\r\nimport {CropZoneService} from '../crop/crop-zone.service';\r\nimport {ImportToolValidator} from './import-tool-validator';\r\nimport {UploadInputTypes} from '@common/uploads/upload-input-config';\r\nimport {UploadedFile} from '@common/uploads/uploaded-file';\r\nimport {openUploadWindow} from '@common/uploads/utils/open-upload-window';\r\nimport {SerializedCanvas} from '../../history/serialized-canvas';\r\nimport {Store} from '@ngxs/store';\r\nimport {ShapesToolService} from '../shapes/shapes-tool.service';\r\nimport {ObjectNames} from '../../objects/object-names.enum';\r\nimport {HttpClient} from '@angular/common/http';\r\n\r\ninterface OpenUploadDialogOptions {\r\n    type?: 'image'|'state';\r\n    openAsBackground?: boolean;\r\n}\r\n\r\n@Injectable()\r\nexport class ImportToolService {\r\n    constructor(\r\n        private history: HistoryToolService,\r\n        private canvas: CanvasService,\r\n        private toast: Toast,\r\n        private config: Settings,\r\n        private frame: FrameToolService,\r\n        private cropzone: CropZoneService,\r\n        private validator: ImportToolValidator,\r\n        private store: Store,\r\n        private shapeTool: ShapesToolService,\r\n        private http: HttpClient,\r\n    ) {}\r\n\r\n    /**\r\n     * Open upload dialog, import selected file and open it in editor.\r\n     */\r\n    public openUploadDialog(options: OpenUploadDialogOptions = {type: 'image'}): Promise<any> {\r\n        const accept = this.getUploadAcceptString(options.type);\r\n        return openUploadWindow({extensions: accept}).then(files => {\r\n            return this.loadFile(files[0], options);\r\n        });\r\n    }\r\n\r\n    public loadFile(uploadedFile: UploadedFile, options: OpenUploadDialogOptions = {type: 'image'}): Promise<Image|void> {\r\n        return this.validateAndGetData(uploadedFile).then(file => {\r\n            this.executeOnFileOpenCallback(uploadedFile, options);\r\n            if (options.openAsBackground && file.extension !== 'json') {\r\n                return this.openBackgroundImage(file.data);\r\n            } else {\r\n                this.canvas.state.contentLoadingState$.next({name: file.extension === 'json' ? 'state' : 'overlayImage', loading: true});\r\n                return this.openFile(file.data, file.extension).then(response => {\r\n                    this.canvas.state.contentLoadingState$.next({\r\n                        name: file.extension === 'json' ? 'state' : 'overlayImage', loading: false\r\n                    });\r\n                    return response;\r\n                });\r\n            }\r\n        }, () => {});\r\n    }\r\n\r\n    /**\r\n     * Open upload dialog, import file and return files data.\r\n     */\r\n    public importAndGetData(): Promise<string> {\r\n        return new Promise(resolve => {\r\n            openUploadWindow({types: [UploadInputTypes.image]}).then(files => {\r\n                this.validateAndGetData(files[0]).then(file => resolve(file.data));\r\n            });\r\n        });\r\n    }\r\n\r\n    /**\r\n     * File specified file and if it passes, return files data.\r\n     */\r\n    public validateAndGetData(file: UploadedFile): Promise<{ data: string, extension: string }> {\r\n        const validation = this.validator.validate(file),\r\n        extension = file.extension;\r\n\r\n        return new Promise((resolve, reject) => {\r\n            if (validation.failed) {\r\n                return reject();\r\n            }\r\n\r\n            this.readFile(file, extension).then(data => resolve({data, extension}));\r\n        });\r\n    }\r\n\r\n    public resetEditor(params: {preserveHistory?: boolean} = {}): Promise<any> {\r\n        // reset UI\r\n        this.canvas.fabric().clear();\r\n        this.frame.remove();\r\n        this.cropzone.remove();\r\n        if ( ! params.preserveHistory) {\r\n            this.history.clear();\r\n        }\r\n\r\n        // remove previous image and canvas size\r\n        this.config.setMultiple({\r\n            'pixie.image': null,\r\n            'pixie.blankCanvasSize': null,\r\n        });\r\n\r\n        return new Promise(resolve => setTimeout(() => resolve()));\r\n    }\r\n\r\n    public openFile(data: string|HTMLImageElement, extension: string = 'png', fitToScreen = this.config.get('pixie.tools.import.fitOverlayToScreen')): Promise<Image|void> {\r\n        if (data instanceof HTMLImageElement) data = data.src;\r\n        if (extension === 'json') {\r\n            return this.loadState(data);\r\n        } else if (extension === 'svg') {\r\n            return this.shapeTool.addSvgSticker(data, ObjectNames.image, fitToScreen);\r\n        } else {\r\n            return this.canvas.openImage(data, fitToScreen);\r\n        }\r\n    }\r\n\r\n    public loadStateFromUrl(url: string): Promise<any> {\r\n        return this.http.get(url).toPromise().then((state: SerializedCanvas) => {\r\n            return this.loadState(state);\r\n        });\r\n    }\r\n\r\n    public loadState(data: string|SerializedCanvas): Promise<void> {\r\n        return this.resetEditor().then(() => {\r\n            return this.history.addFromJson(data);\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Open specified data or image as background image.\r\n     */\r\n    public openBackgroundImage(data: string|HTMLImageElement, options: {resetEditor?: boolean} = {resetEditor: true}): Promise<Image> {\r\n        const promise = options.resetEditor ? this.resetEditor({preserveHistory: true}) : new Promise(resolve => resolve());\r\n        return promise.then(() => {\r\n            if (data instanceof HTMLImageElement) data = data.src;\r\n            return this.canvas.loadMainImage(data, options.resetEditor);\r\n        });\r\n    }\r\n\r\n    /**\r\n     * Read specified file and get its data.\r\n     */\r\n    private readFile(file: UploadedFile, extension: string): Promise<string> {\r\n        const reader = new FileReader();\r\n\r\n        return new Promise(resolve => {\r\n            reader.addEventListener('load', () => {\r\n                resolve(reader.result as string);\r\n            });\r\n\r\n            if (extension === 'json') {\r\n                reader.readAsText(file.native);\r\n            } else {\r\n                reader.readAsDataURL(file.native);\r\n            }\r\n        });\r\n    }\r\n\r\n    private getUploadAcceptString(type: 'image'|'state'|'all' = 'all'): string[] {\r\n        const validExtensions = this.config.get('pixie.tools.import.validExtensions');\r\n        if (validExtensions) {\r\n            return validExtensions;\r\n        }\r\n        switch (type) {\r\n            case 'image':\r\n                return ['image/*'];\r\n            case 'state':\r\n                return ['.json', 'application/json'];\r\n            case 'all':\r\n            default:\r\n                return ['image/*', '.json', 'application/json'];\r\n        }\r\n    }\r\n\r\n    private executeOnFileOpenCallback(file: UploadedFile, options: OpenUploadDialogOptions) {\r\n        const callback = this.config.get('pixie.onFileOpen') as Function;\r\n        if (callback) callback(file, options);\r\n    }\r\n}\r\n","import {AfterViewInit, Directive, ElementRef, Input, OnDestroy} from '@angular/core';\r\nimport {Subscription} from 'rxjs';\r\nimport {Translations} from './translations.service';\r\nimport {Settings} from '../config/settings.service';\r\n\r\n@Directive({\r\n    selector: '[trans], [trans-placeholder], [trans-title]'\r\n})\r\nexport class TranslateDirective implements AfterViewInit, OnDestroy {\r\n    @Input() transValues: {[key: string]: string|number};\r\n    private subscriptions: Subscription[] = [];\r\n\r\n    constructor(\r\n        private el: ElementRef,\r\n        private i18n: Translations,\r\n        private settings: Settings\r\n    ) {}\r\n\r\n    ngAfterViewInit() {\r\n        const sub = this.i18n.localizationChange.subscribe(() => this.translate());\r\n        this.subscriptions.push(sub);\r\n\r\n        if (this.settings.get('i18n.enable') || this.transValues) {\r\n            this.translate();\r\n        }\r\n    }\r\n\r\n    private translate() {\r\n        const el = this.el.nativeElement;\r\n\r\n        // translate placeholder\r\n        if (el.getAttribute('placeholder')) {\r\n            const key = el.getAttribute('placeholder');\r\n            el.setAttribute('placeholder', this.i18n.t(key));\r\n\r\n        // translate html5 title\r\n        } else if (el.getAttribute('title')) {\r\n            const key = el.getAttribute('title');\r\n            el.setAttribute('title', this.i18n.t(key));\r\n\r\n        // translate node text content\r\n        } else {\r\n            this.translateTextContent(el);\r\n        }\r\n    }\r\n\r\n    private translateTextContent(el: HTMLElement) {\r\n        const children = Array.from(el.childNodes);\r\n\r\n        // make sure text nodes are first\r\n        children.sort((a, b) => a.nodeType === Node.TEXT_NODE ? -1 : 1);\r\n\r\n        for (let i = 0; i < children.length; i++) {\r\n            const child = children[i] as HTMLElement,\r\n                textContent = child.textContent.trim();\r\n            // make sure we don't translate newlines or single letters\r\n            if (child.nodeType === Node.TEXT_NODE && textContent.length > 1) {\r\n                return child.nodeValue = this.i18n.t(textContent, this.transValues);\r\n            } else {\r\n                if (this.translateTextContent(child)) return;\r\n            }\r\n        }\r\n    }\r\n\r\n    ngOnDestroy() {\r\n        this.subscriptions\r\n            .filter(sub => !!sub)\r\n            .forEach(sub => sub.unsubscribe());\r\n\r\n        this.subscriptions = [];\r\n    }\r\n}\r\n","import { UploadedFile } from '../../uploaded-file';\r\nimport { UploadValidation } from './upload-validation';\r\nimport { Translations } from '../../../core/translations/translations.service';\r\n\r\nexport class AllowedExtensionsValidation extends UploadValidation {\r\n    constructor(\r\n        protected params: {extensions: string[]},\r\n        protected i18n: Translations\r\n    ) {\r\n        super();\r\n\r\n        this.errorMessage = this.i18n.t(\r\n            'Only these file types are allowed: :extensions',\r\n            {extensions: this.params.extensions.join(', ')}\r\n        );\r\n    }\r\n\r\n    public fails(file: UploadedFile) {\r\n        return ! this.params.extensions.some(extension => {\r\n            return extension.toLowerCase() === file.extension.toLowerCase();\r\n        });\r\n    }\r\n}\r\n","type UNITS = 'KB'|'MB'|'GB'|'TB'|'PB';\r\n\r\nexport function convertToBytes(value: number, unit: UNITS) {\r\n    if (value === null) return null;\r\n    switch (unit) {\r\n        case 'KB':\r\n            return value * 1024;\r\n        case 'MB':\r\n            return value * Math.pow(1024, 2);\r\n        case 'GB':\r\n            return value * Math.pow(1024, 3);\r\n        case 'TB':\r\n            return value * Math.pow(1024, 4);\r\n        case 'PB':\r\n            return value * Math.pow(1024, 5);\r\n        default:\r\n            return value;\r\n    }\r\n}\r\n","import {ComponentType, OverlayRef} from '@angular/cdk/overlay';\r\nimport {Observable, Subject} from 'rxjs';\r\nimport {take} from 'rxjs/operators';\r\nimport {randomString} from '@common/core/utils/random-string';\r\nimport {ComponentRef} from '@angular/core';\r\n\r\nexport class OverlayPanelRef<T = ComponentType<any>, V = any> {\r\n    public id: string = randomString(15);\r\n    private value = new Subject<any>();\r\n    public componentRef: ComponentRef<T>;\r\n\r\n    constructor(private overlayRef: OverlayRef) {}\r\n\r\n    public isOpen(): boolean {\r\n        return this.overlayRef && this.overlayRef.hasAttached();\r\n    }\r\n\r\n    public close() {\r\n        this.overlayRef && this.overlayRef.dispose();\r\n    }\r\n\r\n    public emitValue(value: V) {\r\n        this.value.next(value);\r\n    }\r\n\r\n    public valueChanged(): Observable<V> {\r\n        return this.value.asObservable();\r\n    }\r\n\r\n    public getPanelEl() {\r\n        return this.overlayRef.overlayElement;\r\n    }\r\n\r\n    public updatePosition() {\r\n        return this.overlayRef.updatePosition();\r\n    }\r\n\r\n    public afterClosed() {\r\n        return this.overlayRef.detachments().pipe(take(1));\r\n    }\r\n}\r\n","/*!\n * perfect-scrollbar v1.5.0\n * Copyright 2020 Hyunje Jun, MDBootstrap and Contributors\n * Licensed under MIT\n */\n\nfunction get(element) {\n  return getComputedStyle(element);\n}\n\nfunction set(element, obj) {\n  for (var key in obj) {\n    var val = obj[key];\n    if (typeof val === 'number') {\n      val = val + \"px\";\n    }\n    element.style[key] = val;\n  }\n  return element;\n}\n\nfunction div(className) {\n  var div = document.createElement('div');\n  div.className = className;\n  return div;\n}\n\nvar elMatches =\n  typeof Element !== 'undefined' &&\n  (Element.prototype.matches ||\n    Element.prototype.webkitMatchesSelector ||\n    Element.prototype.mozMatchesSelector ||\n    Element.prototype.msMatchesSelector);\n\nfunction matches(element, query) {\n  if (!elMatches) {\n    throw new Error('No element matching method supported');\n  }\n\n  return elMatches.call(element, query);\n}\n\nfunction remove(element) {\n  if (element.remove) {\n    element.remove();\n  } else {\n    if (element.parentNode) {\n      element.parentNode.removeChild(element);\n    }\n  }\n}\n\nfunction queryChildren(element, selector) {\n  return Array.prototype.filter.call(element.children, function (child) { return matches(child, selector); }\n  );\n}\n\nvar cls = {\n  main: 'ps',\n  rtl: 'ps__rtl',\n  element: {\n    thumb: function (x) { return (\"ps__thumb-\" + x); },\n    rail: function (x) { return (\"ps__rail-\" + x); },\n    consuming: 'ps__child--consume',\n  },\n  state: {\n    focus: 'ps--focus',\n    clicking: 'ps--clicking',\n    active: function (x) { return (\"ps--active-\" + x); },\n    scrolling: function (x) { return (\"ps--scrolling-\" + x); },\n  },\n};\n\n/*\n * Helper methods\n */\nvar scrollingClassTimeout = { x: null, y: null };\n\nfunction addScrollingClass(i, x) {\n  var classList = i.element.classList;\n  var className = cls.state.scrolling(x);\n\n  if (classList.contains(className)) {\n    clearTimeout(scrollingClassTimeout[x]);\n  } else {\n    classList.add(className);\n  }\n}\n\nfunction removeScrollingClass(i, x) {\n  scrollingClassTimeout[x] = setTimeout(\n    function () { return i.isAlive && i.element.classList.remove(cls.state.scrolling(x)); },\n    i.settings.scrollingThreshold\n  );\n}\n\nfunction setScrollingClassInstantly(i, x) {\n  addScrollingClass(i, x);\n  removeScrollingClass(i, x);\n}\n\nvar EventElement = function EventElement(element) {\n  this.element = element;\n  this.handlers = {};\n};\n\nvar prototypeAccessors = { isEmpty: { configurable: true } };\n\nEventElement.prototype.bind = function bind (eventName, handler) {\n  if (typeof this.handlers[eventName] === 'undefined') {\n    this.handlers[eventName] = [];\n  }\n  this.handlers[eventName].push(handler);\n  this.element.addEventListener(eventName, handler, false);\n};\n\nEventElement.prototype.unbind = function unbind (eventName, target) {\n    var this$1 = this;\n\n  this.handlers[eventName] = this.handlers[eventName].filter(function (handler) {\n    if (target && handler !== target) {\n      return true;\n    }\n    this$1.element.removeEventListener(eventName, handler, false);\n    return false;\n  });\n};\n\nEventElement.prototype.unbindAll = function unbindAll () {\n  for (var name in this.handlers) {\n    this.unbind(name);\n  }\n};\n\nprototypeAccessors.isEmpty.get = function () {\n    var this$1 = this;\n\n  return Object.keys(this.handlers).every(\n    function (key) { return this$1.handlers[key].length === 0; }\n  );\n};\n\nObject.defineProperties( EventElement.prototype, prototypeAccessors );\n\nvar EventManager = function EventManager() {\n  this.eventElements = [];\n};\n\nEventManager.prototype.eventElement = function eventElement (element) {\n  var ee = this.eventElements.filter(function (ee) { return ee.element === element; })[0];\n  if (!ee) {\n    ee = new EventElement(element);\n    this.eventElements.push(ee);\n  }\n  return ee;\n};\n\nEventManager.prototype.bind = function bind (element, eventName, handler) {\n  this.eventElement(element).bind(eventName, handler);\n};\n\nEventManager.prototype.unbind = function unbind (element, eventName, handler) {\n  var ee = this.eventElement(element);\n  ee.unbind(eventName, handler);\n\n  if (ee.isEmpty) {\n    // remove\n    this.eventElements.splice(this.eventElements.indexOf(ee), 1);\n  }\n};\n\nEventManager.prototype.unbindAll = function unbindAll () {\n  this.eventElements.forEach(function (e) { return e.unbindAll(); });\n  this.eventElements = [];\n};\n\nEventManager.prototype.once = function once (element, eventName, handler) {\n  var ee = this.eventElement(element);\n  var onceHandler = function (evt) {\n    ee.unbind(eventName, onceHandler);\n    handler(evt);\n  };\n  ee.bind(eventName, onceHandler);\n};\n\nfunction createEvent(name) {\n  if (typeof window.CustomEvent === 'function') {\n    return new CustomEvent(name);\n  } else {\n    var evt = document.createEvent('CustomEvent');\n    evt.initCustomEvent(name, false, false, undefined);\n    return evt;\n  }\n}\n\nfunction processScrollDiff(\n  i,\n  axis,\n  diff,\n  useScrollingClass,\n  forceFireReachEvent\n) {\n  if ( useScrollingClass === void 0 ) useScrollingClass = true;\n  if ( forceFireReachEvent === void 0 ) forceFireReachEvent = false;\n\n  var fields;\n  if (axis === 'top') {\n    fields = [\n      'contentHeight',\n      'containerHeight',\n      'scrollTop',\n      'y',\n      'up',\n      'down' ];\n  } else if (axis === 'left') {\n    fields = [\n      'contentWidth',\n      'containerWidth',\n      'scrollLeft',\n      'x',\n      'left',\n      'right' ];\n  } else {\n    throw new Error('A proper axis should be provided');\n  }\n\n  processScrollDiff$1(i, diff, fields, useScrollingClass, forceFireReachEvent);\n}\n\nfunction processScrollDiff$1(\n  i,\n  diff,\n  ref,\n  useScrollingClass,\n  forceFireReachEvent\n) {\n  var contentHeight = ref[0];\n  var containerHeight = ref[1];\n  var scrollTop = ref[2];\n  var y = ref[3];\n  var up = ref[4];\n  var down = ref[5];\n  if ( useScrollingClass === void 0 ) useScrollingClass = true;\n  if ( forceFireReachEvent === void 0 ) forceFireReachEvent = false;\n\n  var element = i.element;\n\n  // reset reach\n  i.reach[y] = null;\n\n  // 1 for subpixel rounding\n  if (element[scrollTop] < 1) {\n    i.reach[y] = 'start';\n  }\n\n  // 1 for subpixel rounding\n  if (element[scrollTop] > i[contentHeight] - i[containerHeight] - 1) {\n    i.reach[y] = 'end';\n  }\n\n  if (diff) {\n    element.dispatchEvent(createEvent((\"ps-scroll-\" + y)));\n\n    if (diff < 0) {\n      element.dispatchEvent(createEvent((\"ps-scroll-\" + up)));\n    } else if (diff > 0) {\n      element.dispatchEvent(createEvent((\"ps-scroll-\" + down)));\n    }\n\n    if (useScrollingClass) {\n      setScrollingClassInstantly(i, y);\n    }\n  }\n\n  if (i.reach[y] && (diff || forceFireReachEvent)) {\n    element.dispatchEvent(createEvent((\"ps-\" + y + \"-reach-\" + (i.reach[y]))));\n  }\n}\n\nfunction toInt(x) {\n  return parseInt(x, 10) || 0;\n}\n\nfunction isEditable(el) {\n  return (\n    matches(el, 'input,[contenteditable]') ||\n    matches(el, 'select,[contenteditable]') ||\n    matches(el, 'textarea,[contenteditable]') ||\n    matches(el, 'button,[contenteditable]')\n  );\n}\n\nfunction outerWidth(element) {\n  var styles = get(element);\n  return (\n    toInt(styles.width) +\n    toInt(styles.paddingLeft) +\n    toInt(styles.paddingRight) +\n    toInt(styles.borderLeftWidth) +\n    toInt(styles.borderRightWidth)\n  );\n}\n\nvar env = {\n  isWebKit:\n    typeof document !== 'undefined' &&\n    'WebkitAppearance' in document.documentElement.style,\n  supportsTouch:\n    typeof window !== 'undefined' &&\n    ('ontouchstart' in window ||\n      ('maxTouchPoints' in window.navigator &&\n        window.navigator.maxTouchPoints > 0) ||\n      (window.DocumentTouch && document instanceof window.DocumentTouch)),\n  supportsIePointer:\n    typeof navigator !== 'undefined' && navigator.msMaxTouchPoints,\n  isChrome:\n    typeof navigator !== 'undefined' &&\n    /Chrome/i.test(navigator && navigator.userAgent),\n};\n\nfunction updateGeometry(i) {\n  var element = i.element;\n  var roundedScrollTop = Math.floor(element.scrollTop);\n  var rect = element.getBoundingClientRect();\n\n  i.containerWidth = Math.ceil(rect.width);\n  i.containerHeight = Math.ceil(rect.height);\n  i.contentWidth = element.scrollWidth;\n  i.contentHeight = element.scrollHeight;\n\n  if (!element.contains(i.scrollbarXRail)) {\n    // clean up and append\n    queryChildren(element, cls.element.rail('x')).forEach(function (el) { return remove(el); }\n    );\n    element.appendChild(i.scrollbarXRail);\n  }\n  if (!element.contains(i.scrollbarYRail)) {\n    // clean up and append\n    queryChildren(element, cls.element.rail('y')).forEach(function (el) { return remove(el); }\n    );\n    element.appendChild(i.scrollbarYRail);\n  }\n\n  if (\n    !i.settings.suppressScrollX &&\n    i.containerWidth + i.settings.scrollXMarginOffset < i.contentWidth\n  ) {\n    i.scrollbarXActive = true;\n    i.railXWidth = i.containerWidth - i.railXMarginWidth;\n    i.railXRatio = i.containerWidth / i.railXWidth;\n    i.scrollbarXWidth = getThumbSize(\n      i,\n      toInt((i.railXWidth * i.containerWidth) / i.contentWidth)\n    );\n    i.scrollbarXLeft = toInt(\n      ((i.negativeScrollAdjustment + element.scrollLeft) *\n        (i.railXWidth - i.scrollbarXWidth)) /\n        (i.contentWidth - i.containerWidth)\n    );\n  } else {\n    i.scrollbarXActive = false;\n  }\n\n  if (\n    !i.settings.suppressScrollY &&\n    i.containerHeight + i.settings.scrollYMarginOffset < i.contentHeight\n  ) {\n    i.scrollbarYActive = true;\n    i.railYHeight = i.containerHeight - i.railYMarginHeight;\n    i.railYRatio = i.containerHeight / i.railYHeight;\n    i.scrollbarYHeight = getThumbSize(\n      i,\n      toInt((i.railYHeight * i.containerHeight) / i.contentHeight)\n    );\n    i.scrollbarYTop = toInt(\n      (roundedScrollTop * (i.railYHeight - i.scrollbarYHeight)) /\n        (i.contentHeight - i.containerHeight)\n    );\n  } else {\n    i.scrollbarYActive = false;\n  }\n\n  if (i.scrollbarXLeft >= i.railXWidth - i.scrollbarXWidth) {\n    i.scrollbarXLeft = i.railXWidth - i.scrollbarXWidth;\n  }\n  if (i.scrollbarYTop >= i.railYHeight - i.scrollbarYHeight) {\n    i.scrollbarYTop = i.railYHeight - i.scrollbarYHeight;\n  }\n\n  updateCss(element, i);\n\n  if (i.scrollbarXActive) {\n    element.classList.add(cls.state.active('x'));\n  } else {\n    element.classList.remove(cls.state.active('x'));\n    i.scrollbarXWidth = 0;\n    i.scrollbarXLeft = 0;\n    element.scrollLeft = i.isRtl === true ? i.contentWidth : 0;\n  }\n  if (i.scrollbarYActive) {\n    element.classList.add(cls.state.active('y'));\n  } else {\n    element.classList.remove(cls.state.active('y'));\n    i.scrollbarYHeight = 0;\n    i.scrollbarYTop = 0;\n    element.scrollTop = 0;\n  }\n}\n\nfunction getThumbSize(i, thumbSize) {\n  if (i.settings.minScrollbarLength) {\n    thumbSize = Math.max(thumbSize, i.settings.minScrollbarLength);\n  }\n  if (i.settings.maxScrollbarLength) {\n    thumbSize = Math.min(thumbSize, i.settings.maxScrollbarLength);\n  }\n  return thumbSize;\n}\n\nfunction updateCss(element, i) {\n  var xRailOffset = { width: i.railXWidth };\n  var roundedScrollTop = Math.floor(element.scrollTop);\n\n  if (i.isRtl) {\n    xRailOffset.left =\n      i.negativeScrollAdjustment +\n      element.scrollLeft +\n      i.containerWidth -\n      i.contentWidth;\n  } else {\n    xRailOffset.left = element.scrollLeft;\n  }\n  if (i.isScrollbarXUsingBottom) {\n    xRailOffset.bottom = i.scrollbarXBottom - roundedScrollTop;\n  } else {\n    xRailOffset.top = i.scrollbarXTop + roundedScrollTop;\n  }\n  set(i.scrollbarXRail, xRailOffset);\n\n  var yRailOffset = { top: roundedScrollTop, height: i.railYHeight };\n  if (i.isScrollbarYUsingRight) {\n    if (i.isRtl) {\n      yRailOffset.right =\n        i.contentWidth -\n        (i.negativeScrollAdjustment + element.scrollLeft) -\n        i.scrollbarYRight -\n        i.scrollbarYOuterWidth -\n        9;\n    } else {\n      yRailOffset.right = i.scrollbarYRight - element.scrollLeft;\n    }\n  } else {\n    if (i.isRtl) {\n      yRailOffset.left =\n        i.negativeScrollAdjustment +\n        element.scrollLeft +\n        i.containerWidth * 2 -\n        i.contentWidth -\n        i.scrollbarYLeft -\n        i.scrollbarYOuterWidth;\n    } else {\n      yRailOffset.left = i.scrollbarYLeft + element.scrollLeft;\n    }\n  }\n  set(i.scrollbarYRail, yRailOffset);\n\n  set(i.scrollbarX, {\n    left: i.scrollbarXLeft,\n    width: i.scrollbarXWidth - i.railBorderXWidth,\n  });\n  set(i.scrollbarY, {\n    top: i.scrollbarYTop,\n    height: i.scrollbarYHeight - i.railBorderYWidth,\n  });\n}\n\nfunction clickRail(i) {\n  var element = i.element;\n\n  i.event.bind(i.scrollbarY, 'mousedown', function (e) { return e.stopPropagation(); });\n  i.event.bind(i.scrollbarYRail, 'mousedown', function (e) {\n    var positionTop =\n      e.pageY -\n      window.pageYOffset -\n      i.scrollbarYRail.getBoundingClientRect().top;\n    var direction = positionTop > i.scrollbarYTop ? 1 : -1;\n\n    i.element.scrollTop += direction * i.containerHeight;\n    updateGeometry(i);\n\n    e.stopPropagation();\n  });\n\n  i.event.bind(i.scrollbarX, 'mousedown', function (e) { return e.stopPropagation(); });\n  i.event.bind(i.scrollbarXRail, 'mousedown', function (e) {\n    var positionLeft =\n      e.pageX -\n      window.pageXOffset -\n      i.scrollbarXRail.getBoundingClientRect().left;\n    var direction = positionLeft > i.scrollbarXLeft ? 1 : -1;\n\n    i.element.scrollLeft += direction * i.containerWidth;\n    updateGeometry(i);\n\n    e.stopPropagation();\n  });\n}\n\nfunction dragThumb(i) {\n  bindMouseScrollHandler(i, [\n    'containerWidth',\n    'contentWidth',\n    'pageX',\n    'railXWidth',\n    'scrollbarX',\n    'scrollbarXWidth',\n    'scrollLeft',\n    'x',\n    'scrollbarXRail' ]);\n  bindMouseScrollHandler(i, [\n    'containerHeight',\n    'contentHeight',\n    'pageY',\n    'railYHeight',\n    'scrollbarY',\n    'scrollbarYHeight',\n    'scrollTop',\n    'y',\n    'scrollbarYRail' ]);\n}\n\nfunction bindMouseScrollHandler(\n  i,\n  ref\n) {\n  var containerHeight = ref[0];\n  var contentHeight = ref[1];\n  var pageY = ref[2];\n  var railYHeight = ref[3];\n  var scrollbarY = ref[4];\n  var scrollbarYHeight = ref[5];\n  var scrollTop = ref[6];\n  var y = ref[7];\n  var scrollbarYRail = ref[8];\n\n  var element = i.element;\n\n  var startingScrollTop = null;\n  var startingMousePageY = null;\n  var scrollBy = null;\n\n  function mouseMoveHandler(e) {\n    if (e.touches && e.touches[0]) {\n      e[pageY] = e.touches[0].pageY;\n    }\n    element[scrollTop] =\n      startingScrollTop + scrollBy * (e[pageY] - startingMousePageY);\n    addScrollingClass(i, y);\n    updateGeometry(i);\n\n    e.stopPropagation();\n    e.preventDefault();\n  }\n\n  function mouseUpHandler() {\n    removeScrollingClass(i, y);\n    i[scrollbarYRail].classList.remove(cls.state.clicking);\n    i.event.unbind(i.ownerDocument, 'mousemove', mouseMoveHandler);\n  }\n\n  function bindMoves(e, touchMode) {\n    startingScrollTop = element[scrollTop];\n    if (touchMode && e.touches) {\n      e[pageY] = e.touches[0].pageY;\n    }\n    startingMousePageY = e[pageY];\n    scrollBy =\n      (i[contentHeight] - i[containerHeight]) /\n      (i[railYHeight] - i[scrollbarYHeight]);\n    if (!touchMode) {\n      i.event.bind(i.ownerDocument, 'mousemove', mouseMoveHandler);\n      i.event.once(i.ownerDocument, 'mouseup', mouseUpHandler);\n      e.preventDefault();\n    } else {\n      i.event.bind(i.ownerDocument, 'touchmove', mouseMoveHandler);\n    }\n\n    i[scrollbarYRail].classList.add(cls.state.clicking);\n\n    e.stopPropagation();\n  }\n\n  i.event.bind(i[scrollbarY], 'mousedown', function (e) {\n    bindMoves(e);\n  });\n  i.event.bind(i[scrollbarY], 'touchstart', function (e) {\n    bindMoves(e, true);\n  });\n}\n\nfunction keyboard(i) {\n  var element = i.element;\n\n  var elementHovered = function () { return matches(element, ':hover'); };\n  var scrollbarFocused = function () { return matches(i.scrollbarX, ':focus') || matches(i.scrollbarY, ':focus'); };\n\n  function shouldPreventDefault(deltaX, deltaY) {\n    var scrollTop = Math.floor(element.scrollTop);\n    if (deltaX === 0) {\n      if (!i.scrollbarYActive) {\n        return false;\n      }\n      if (\n        (scrollTop === 0 && deltaY > 0) ||\n        (scrollTop >= i.contentHeight - i.containerHeight && deltaY < 0)\n      ) {\n        return !i.settings.wheelPropagation;\n      }\n    }\n\n    var scrollLeft = element.scrollLeft;\n    if (deltaY === 0) {\n      if (!i.scrollbarXActive) {\n        return false;\n      }\n      if (\n        (scrollLeft === 0 && deltaX < 0) ||\n        (scrollLeft >= i.contentWidth - i.containerWidth && deltaX > 0)\n      ) {\n        return !i.settings.wheelPropagation;\n      }\n    }\n    return true;\n  }\n\n  i.event.bind(i.ownerDocument, 'keydown', function (e) {\n    if (\n      (e.isDefaultPrevented && e.isDefaultPrevented()) ||\n      e.defaultPrevented\n    ) {\n      return;\n    }\n\n    if (!elementHovered() && !scrollbarFocused()) {\n      return;\n    }\n\n    var activeElement = document.activeElement\n      ? document.activeElement\n      : i.ownerDocument.activeElement;\n    if (activeElement) {\n      if (activeElement.tagName === 'IFRAME') {\n        activeElement = activeElement.contentDocument.activeElement;\n      } else {\n        // go deeper if element is a webcomponent\n        while (activeElement.shadowRoot) {\n          activeElement = activeElement.shadowRoot.activeElement;\n        }\n      }\n      if (isEditable(activeElement)) {\n        return;\n      }\n    }\n\n    var deltaX = 0;\n    var deltaY = 0;\n\n    switch (e.which) {\n      case 37: // left\n        if (e.metaKey) {\n          deltaX = -i.contentWidth;\n        } else if (e.altKey) {\n          deltaX = -i.containerWidth;\n        } else {\n          deltaX = -30;\n        }\n        break;\n      case 38: // up\n        if (e.metaKey) {\n          deltaY = i.contentHeight;\n        } else if (e.altKey) {\n          deltaY = i.containerHeight;\n        } else {\n          deltaY = 30;\n        }\n        break;\n      case 39: // right\n        if (e.metaKey) {\n          deltaX = i.contentWidth;\n        } else if (e.altKey) {\n          deltaX = i.containerWidth;\n        } else {\n          deltaX = 30;\n        }\n        break;\n      case 40: // down\n        if (e.metaKey) {\n          deltaY = -i.contentHeight;\n        } else if (e.altKey) {\n          deltaY = -i.containerHeight;\n        } else {\n          deltaY = -30;\n        }\n        break;\n      case 32: // space bar\n        if (e.shiftKey) {\n          deltaY = i.containerHeight;\n        } else {\n          deltaY = -i.containerHeight;\n        }\n        break;\n      case 33: // page up\n        deltaY = i.containerHeight;\n        break;\n      case 34: // page down\n        deltaY = -i.containerHeight;\n        break;\n      case 36: // home\n        deltaY = i.contentHeight;\n        break;\n      case 35: // end\n        deltaY = -i.contentHeight;\n        break;\n      default:\n        return;\n    }\n\n    if (i.settings.suppressScrollX && deltaX !== 0) {\n      return;\n    }\n    if (i.settings.suppressScrollY && deltaY !== 0) {\n      return;\n    }\n\n    element.scrollTop -= deltaY;\n    element.scrollLeft += deltaX;\n    updateGeometry(i);\n\n    if (shouldPreventDefault(deltaX, deltaY)) {\n      e.preventDefault();\n    }\n  });\n}\n\nfunction wheel(i) {\n  var element = i.element;\n\n  function shouldPreventDefault(deltaX, deltaY) {\n    var roundedScrollTop = Math.floor(element.scrollTop);\n    var isTop = element.scrollTop === 0;\n    var isBottom =\n      roundedScrollTop + element.offsetHeight === element.scrollHeight;\n    var isLeft = element.scrollLeft === 0;\n    var isRight =\n      element.scrollLeft + element.offsetWidth === element.scrollWidth;\n\n    var hitsBound;\n\n    // pick axis with primary direction\n    if (Math.abs(deltaY) > Math.abs(deltaX)) {\n      hitsBound = isTop || isBottom;\n    } else {\n      hitsBound = isLeft || isRight;\n    }\n\n    return hitsBound ? !i.settings.wheelPropagation : true;\n  }\n\n  function getDeltaFromEvent(e) {\n    var deltaX = e.deltaX;\n    var deltaY = -1 * e.deltaY;\n\n    if (typeof deltaX === 'undefined' || typeof deltaY === 'undefined') {\n      // OS X Safari\n      deltaX = (-1 * e.wheelDeltaX) / 6;\n      deltaY = e.wheelDeltaY / 6;\n    }\n\n    if (e.deltaMode && e.deltaMode === 1) {\n      // Firefox in deltaMode 1: Line scrolling\n      deltaX *= 10;\n      deltaY *= 10;\n    }\n\n    if (deltaX !== deltaX && deltaY !== deltaY /* NaN checks */) {\n      // IE in some mouse drivers\n      deltaX = 0;\n      deltaY = e.wheelDelta;\n    }\n\n    if (e.shiftKey) {\n      // reverse axis with shift key\n      return [-deltaY, -deltaX];\n    }\n    return [deltaX, deltaY];\n  }\n\n  function shouldBeConsumedByChild(target, deltaX, deltaY) {\n    // FIXME: this is a workaround for <select> issue in FF and IE #571\n    if (!env.isWebKit && element.querySelector('select:focus')) {\n      return true;\n    }\n\n    if (!element.contains(target)) {\n      return false;\n    }\n\n    var cursor = target;\n\n    while (cursor && cursor !== element) {\n      if (cursor.classList.contains(cls.element.consuming)) {\n        return true;\n      }\n\n      var style = get(cursor);\n\n      // if deltaY && vertical scrollable\n      if (deltaY && style.overflowY.match(/(scroll|auto)/)) {\n        var maxScrollTop = cursor.scrollHeight - cursor.clientHeight;\n        if (maxScrollTop > 0) {\n          if (\n            (cursor.scrollTop > 0 && deltaY < 0) ||\n            (cursor.scrollTop < maxScrollTop && deltaY > 0)\n          ) {\n            return true;\n          }\n        }\n      }\n      // if deltaX && horizontal scrollable\n      if (deltaX && style.overflowX.match(/(scroll|auto)/)) {\n        var maxScrollLeft = cursor.scrollWidth - cursor.clientWidth;\n        if (maxScrollLeft > 0) {\n          if (\n            (cursor.scrollLeft > 0 && deltaX < 0) ||\n            (cursor.scrollLeft < maxScrollLeft && deltaX > 0)\n          ) {\n            return true;\n          }\n        }\n      }\n\n      cursor = cursor.parentNode;\n    }\n\n    return false;\n  }\n\n  function mousewheelHandler(e) {\n    var ref = getDeltaFromEvent(e);\n    var deltaX = ref[0];\n    var deltaY = ref[1];\n\n    if (shouldBeConsumedByChild(e.target, deltaX, deltaY)) {\n      return;\n    }\n\n    var shouldPrevent = false;\n    if (!i.settings.useBothWheelAxes) {\n      // deltaX will only be used for horizontal scrolling and deltaY will\n      // only be used for vertical scrolling - this is the default\n      element.scrollTop -= deltaY * i.settings.wheelSpeed;\n      element.scrollLeft += deltaX * i.settings.wheelSpeed;\n    } else if (i.scrollbarYActive && !i.scrollbarXActive) {\n      // only vertical scrollbar is active and useBothWheelAxes option is\n      // active, so let's scroll vertical bar using both mouse wheel axes\n      if (deltaY) {\n        element.scrollTop -= deltaY * i.settings.wheelSpeed;\n      } else {\n        element.scrollTop += deltaX * i.settings.wheelSpeed;\n      }\n      shouldPrevent = true;\n    } else if (i.scrollbarXActive && !i.scrollbarYActive) {\n      // useBothWheelAxes and only horizontal bar is active, so use both\n      // wheel axes for horizontal bar\n      if (deltaX) {\n        element.scrollLeft += deltaX * i.settings.wheelSpeed;\n      } else {\n        element.scrollLeft -= deltaY * i.settings.wheelSpeed;\n      }\n      shouldPrevent = true;\n    }\n\n    updateGeometry(i);\n\n    shouldPrevent = shouldPrevent || shouldPreventDefault(deltaX, deltaY);\n    if (shouldPrevent && !e.ctrlKey) {\n      e.stopPropagation();\n      e.preventDefault();\n    }\n  }\n\n  if (typeof window.onwheel !== 'undefined') {\n    i.event.bind(element, 'wheel', mousewheelHandler);\n  } else if (typeof window.onmousewheel !== 'undefined') {\n    i.event.bind(element, 'mousewheel', mousewheelHandler);\n  }\n}\n\nfunction touch(i) {\n  if (!env.supportsTouch && !env.supportsIePointer) {\n    return;\n  }\n\n  var element = i.element;\n\n  function shouldPrevent(deltaX, deltaY) {\n    var scrollTop = Math.floor(element.scrollTop);\n    var scrollLeft = element.scrollLeft;\n    var magnitudeX = Math.abs(deltaX);\n    var magnitudeY = Math.abs(deltaY);\n\n    if (magnitudeY > magnitudeX) {\n      // user is perhaps trying to swipe up/down the page\n\n      if (\n        (deltaY < 0 && scrollTop === i.contentHeight - i.containerHeight) ||\n        (deltaY > 0 && scrollTop === 0)\n      ) {\n        // set prevent for mobile Chrome refresh\n        return window.scrollY === 0 && deltaY > 0 && env.isChrome;\n      }\n    } else if (magnitudeX > magnitudeY) {\n      // user is perhaps trying to swipe left/right across the page\n\n      if (\n        (deltaX < 0 && scrollLeft === i.contentWidth - i.containerWidth) ||\n        (deltaX > 0 && scrollLeft === 0)\n      ) {\n        return true;\n      }\n    }\n\n    return true;\n  }\n\n  function applyTouchMove(differenceX, differenceY) {\n    element.scrollTop -= differenceY;\n    element.scrollLeft -= differenceX;\n\n    updateGeometry(i);\n  }\n\n  var startOffset = {};\n  var startTime = 0;\n  var speed = {};\n  var easingLoop = null;\n\n  function getTouch(e) {\n    if (e.targetTouches) {\n      return e.targetTouches[0];\n    } else {\n      // Maybe IE pointer\n      return e;\n    }\n  }\n\n  function shouldHandle(e) {\n    if (e.pointerType && e.pointerType === 'pen' && e.buttons === 0) {\n      return false;\n    }\n    if (e.targetTouches && e.targetTouches.length === 1) {\n      return true;\n    }\n    if (\n      e.pointerType &&\n      e.pointerType !== 'mouse' &&\n      e.pointerType !== e.MSPOINTER_TYPE_MOUSE\n    ) {\n      return true;\n    }\n    return false;\n  }\n\n  function touchStart(e) {\n    if (!shouldHandle(e)) {\n      return;\n    }\n\n    var touch = getTouch(e);\n\n    startOffset.pageX = touch.pageX;\n    startOffset.pageY = touch.pageY;\n\n    startTime = new Date().getTime();\n\n    if (easingLoop !== null) {\n      clearInterval(easingLoop);\n    }\n  }\n\n  function shouldBeConsumedByChild(target, deltaX, deltaY) {\n    if (!element.contains(target)) {\n      return false;\n    }\n\n    var cursor = target;\n\n    while (cursor && cursor !== element) {\n      if (cursor.classList.contains(cls.element.consuming)) {\n        return true;\n      }\n\n      var style = get(cursor);\n\n      // if deltaY && vertical scrollable\n      if (deltaY && style.overflowY.match(/(scroll|auto)/)) {\n        var maxScrollTop = cursor.scrollHeight - cursor.clientHeight;\n        if (maxScrollTop > 0) {\n          if (\n            (cursor.scrollTop > 0 && deltaY < 0) ||\n            (cursor.scrollTop < maxScrollTop && deltaY > 0)\n          ) {\n            return true;\n          }\n        }\n      }\n      // if deltaX && horizontal scrollable\n      if (deltaX && style.overflowX.match(/(scroll|auto)/)) {\n        var maxScrollLeft = cursor.scrollWidth - cursor.clientWidth;\n        if (maxScrollLeft > 0) {\n          if (\n            (cursor.scrollLeft > 0 && deltaX < 0) ||\n            (cursor.scrollLeft < maxScrollLeft && deltaX > 0)\n          ) {\n            return true;\n          }\n        }\n      }\n\n      cursor = cursor.parentNode;\n    }\n\n    return false;\n  }\n\n  function touchMove(e) {\n    if (shouldHandle(e)) {\n      var touch = getTouch(e);\n\n      var currentOffset = { pageX: touch.pageX, pageY: touch.pageY };\n\n      var differenceX = currentOffset.pageX - startOffset.pageX;\n      var differenceY = currentOffset.pageY - startOffset.pageY;\n\n      if (shouldBeConsumedByChild(e.target, differenceX, differenceY)) {\n        return;\n      }\n\n      applyTouchMove(differenceX, differenceY);\n      startOffset = currentOffset;\n\n      var currentTime = new Date().getTime();\n\n      var timeGap = currentTime - startTime;\n      if (timeGap > 0) {\n        speed.x = differenceX / timeGap;\n        speed.y = differenceY / timeGap;\n        startTime = currentTime;\n      }\n\n      if (shouldPrevent(differenceX, differenceY)) {\n        e.preventDefault();\n      }\n    }\n  }\n  function touchEnd() {\n    if (i.settings.swipeEasing) {\n      clearInterval(easingLoop);\n      easingLoop = setInterval(function() {\n        if (i.isInitialized) {\n          clearInterval(easingLoop);\n          return;\n        }\n\n        if (!speed.x && !speed.y) {\n          clearInterval(easingLoop);\n          return;\n        }\n\n        if (Math.abs(speed.x) < 0.01 && Math.abs(speed.y) < 0.01) {\n          clearInterval(easingLoop);\n          return;\n        }\n\n        applyTouchMove(speed.x * 30, speed.y * 30);\n\n        speed.x *= 0.8;\n        speed.y *= 0.8;\n      }, 10);\n    }\n  }\n\n  if (env.supportsTouch) {\n    i.event.bind(element, 'touchstart', touchStart);\n    i.event.bind(element, 'touchmove', touchMove);\n    i.event.bind(element, 'touchend', touchEnd);\n  } else if (env.supportsIePointer) {\n    if (window.PointerEvent) {\n      i.event.bind(element, 'pointerdown', touchStart);\n      i.event.bind(element, 'pointermove', touchMove);\n      i.event.bind(element, 'pointerup', touchEnd);\n    } else if (window.MSPointerEvent) {\n      i.event.bind(element, 'MSPointerDown', touchStart);\n      i.event.bind(element, 'MSPointerMove', touchMove);\n      i.event.bind(element, 'MSPointerUp', touchEnd);\n    }\n  }\n}\n\nvar defaultSettings = function () { return ({\n  handlers: ['click-rail', 'drag-thumb', 'keyboard', 'wheel', 'touch'],\n  maxScrollbarLength: null,\n  minScrollbarLength: null,\n  scrollingThreshold: 1000,\n  scrollXMarginOffset: 0,\n  scrollYMarginOffset: 0,\n  suppressScrollX: false,\n  suppressScrollY: false,\n  swipeEasing: true,\n  useBothWheelAxes: false,\n  wheelPropagation: true,\n  wheelSpeed: 1,\n}); };\n\nvar handlers = {\n  'click-rail': clickRail,\n  'drag-thumb': dragThumb,\n  keyboard: keyboard,\n  wheel: wheel,\n  touch: touch,\n};\n\nvar PerfectScrollbar = function PerfectScrollbar(element, userSettings) {\n  var this$1 = this;\n  if ( userSettings === void 0 ) userSettings = {};\n\n  if (typeof element === 'string') {\n    element = document.querySelector(element);\n  }\n\n  if (!element || !element.nodeName) {\n    throw new Error('no element is specified to initialize PerfectScrollbar');\n  }\n\n  this.element = element;\n\n  element.classList.add(cls.main);\n\n  this.settings = defaultSettings();\n  for (var key in userSettings) {\n    this.settings[key] = userSettings[key];\n  }\n\n  this.containerWidth = null;\n  this.containerHeight = null;\n  this.contentWidth = null;\n  this.contentHeight = null;\n\n  var focus = function () { return element.classList.add(cls.state.focus); };\n  var blur = function () { return element.classList.remove(cls.state.focus); };\n\n  this.isRtl = get(element).direction === 'rtl';\n  if (this.isRtl === true) {\n    element.classList.add(cls.rtl);\n  }\n  this.isNegativeScroll = (function () {\n    var originalScrollLeft = element.scrollLeft;\n    var result = null;\n    element.scrollLeft = -1;\n    result = element.scrollLeft < 0;\n    element.scrollLeft = originalScrollLeft;\n    return result;\n  })();\n  this.negativeScrollAdjustment = this.isNegativeScroll\n    ? element.scrollWidth - element.clientWidth\n    : 0;\n  this.event = new EventManager();\n  this.ownerDocument = element.ownerDocument || document;\n\n  this.scrollbarXRail = div(cls.element.rail('x'));\n  element.appendChild(this.scrollbarXRail);\n  this.scrollbarX = div(cls.element.thumb('x'));\n  this.scrollbarXRail.appendChild(this.scrollbarX);\n  this.scrollbarX.setAttribute('tabindex', 0);\n  this.event.bind(this.scrollbarX, 'focus', focus);\n  this.event.bind(this.scrollbarX, 'blur', blur);\n  this.scrollbarXActive = null;\n  this.scrollbarXWidth = null;\n  this.scrollbarXLeft = null;\n  var railXStyle = get(this.scrollbarXRail);\n  this.scrollbarXBottom = parseInt(railXStyle.bottom, 10);\n  if (isNaN(this.scrollbarXBottom)) {\n    this.isScrollbarXUsingBottom = false;\n    this.scrollbarXTop = toInt(railXStyle.top);\n  } else {\n    this.isScrollbarXUsingBottom = true;\n  }\n  this.railBorderXWidth =\n    toInt(railXStyle.borderLeftWidth) + toInt(railXStyle.borderRightWidth);\n  // Set rail to display:block to calculate margins\n  set(this.scrollbarXRail, { display: 'block' });\n  this.railXMarginWidth =\n    toInt(railXStyle.marginLeft) + toInt(railXStyle.marginRight);\n  set(this.scrollbarXRail, { display: '' });\n  this.railXWidth = null;\n  this.railXRatio = null;\n\n  this.scrollbarYRail = div(cls.element.rail('y'));\n  element.appendChild(this.scrollbarYRail);\n  this.scrollbarY = div(cls.element.thumb('y'));\n  this.scrollbarYRail.appendChild(this.scrollbarY);\n  this.scrollbarY.setAttribute('tabindex', 0);\n  this.event.bind(this.scrollbarY, 'focus', focus);\n  this.event.bind(this.scrollbarY, 'blur', blur);\n  this.scrollbarYActive = null;\n  this.scrollbarYHeight = null;\n  this.scrollbarYTop = null;\n  var railYStyle = get(this.scrollbarYRail);\n  this.scrollbarYRight = parseInt(railYStyle.right, 10);\n  if (isNaN(this.scrollbarYRight)) {\n    this.isScrollbarYUsingRight = false;\n    this.scrollbarYLeft = toInt(railYStyle.left);\n  } else {\n    this.isScrollbarYUsingRight = true;\n  }\n  this.scrollbarYOuterWidth = this.isRtl ? outerWidth(this.scrollbarY) : null;\n  this.railBorderYWidth =\n    toInt(railYStyle.borderTopWidth) + toInt(railYStyle.borderBottomWidth);\n  set(this.scrollbarYRail, { display: 'block' });\n  this.railYMarginHeight =\n    toInt(railYStyle.marginTop) + toInt(railYStyle.marginBottom);\n  set(this.scrollbarYRail, { display: '' });\n  this.railYHeight = null;\n  this.railYRatio = null;\n\n  this.reach = {\n    x:\n      element.scrollLeft <= 0\n        ? 'start'\n        : element.scrollLeft >= this.contentWidth - this.containerWidth\n        ? 'end'\n        : null,\n    y:\n      element.scrollTop <= 0\n        ? 'start'\n        : element.scrollTop >= this.contentHeight - this.containerHeight\n        ? 'end'\n        : null,\n  };\n\n  this.isAlive = true;\n\n  this.settings.handlers.forEach(function (handlerName) { return handlers[handlerName](this$1); });\n\n  this.lastScrollTop = Math.floor(element.scrollTop); // for onScroll only\n  this.lastScrollLeft = element.scrollLeft; // for onScroll only\n  this.event.bind(this.element, 'scroll', function (e) { return this$1.onScroll(e); });\n  updateGeometry(this);\n};\n\nPerfectScrollbar.prototype.update = function update () {\n  if (!this.isAlive) {\n    return;\n  }\n\n  // Recalcuate negative scrollLeft adjustment\n  this.negativeScrollAdjustment = this.isNegativeScroll\n    ? this.element.scrollWidth - this.element.clientWidth\n    : 0;\n\n  // Recalculate rail margins\n  set(this.scrollbarXRail, { display: 'block' });\n  set(this.scrollbarYRail, { display: 'block' });\n  this.railXMarginWidth =\n    toInt(get(this.scrollbarXRail).marginLeft) +\n    toInt(get(this.scrollbarXRail).marginRight);\n  this.railYMarginHeight =\n    toInt(get(this.scrollbarYRail).marginTop) +\n    toInt(get(this.scrollbarYRail).marginBottom);\n\n  // Hide scrollbars not to affect scrollWidth and scrollHeight\n  set(this.scrollbarXRail, { display: 'none' });\n  set(this.scrollbarYRail, { display: 'none' });\n\n  updateGeometry(this);\n\n  processScrollDiff(this, 'top', 0, false, true);\n  processScrollDiff(this, 'left', 0, false, true);\n\n  set(this.scrollbarXRail, { display: '' });\n  set(this.scrollbarYRail, { display: '' });\n};\n\nPerfectScrollbar.prototype.onScroll = function onScroll (e) {\n  if (!this.isAlive) {\n    return;\n  }\n\n  updateGeometry(this);\n  processScrollDiff(this, 'top', this.element.scrollTop - this.lastScrollTop);\n  processScrollDiff(\n    this,\n    'left',\n    this.element.scrollLeft - this.lastScrollLeft\n  );\n\n  this.lastScrollTop = Math.floor(this.element.scrollTop);\n  this.lastScrollLeft = this.element.scrollLeft;\n};\n\nPerfectScrollbar.prototype.destroy = function destroy () {\n  if (!this.isAlive) {\n    return;\n  }\n\n  this.event.unbindAll();\n  remove(this.scrollbarX);\n  remove(this.scrollbarY);\n  remove(this.scrollbarXRail);\n  remove(this.scrollbarYRail);\n  this.removePsClasses();\n\n  // unset elements\n  this.element = null;\n  this.scrollbarX = null;\n  this.scrollbarY = null;\n  this.scrollbarXRail = null;\n  this.scrollbarYRail = null;\n\n  this.isAlive = false;\n};\n\nPerfectScrollbar.prototype.removePsClasses = function removePsClasses () {\n  this.element.className = this.element.className\n    .split(' ')\n    .filter(function (name) { return !name.match(/^ps([-_].+|)$/); })\n    .join(' ');\n};\n\nexport default PerfectScrollbar;\n//# sourceMappingURL=perfect-scrollbar.esm.js.map\n","import {AfterViewInit, Directive, ElementRef, Inject, Input, NgZone, OnDestroy, Renderer2} from '@angular/core';\r\nimport PerfectScrollbar from 'perfect-scrollbar';\r\nimport {Subscription, Subject} from 'rxjs';\r\nimport {BreakpointsService} from '../breakpoints.service';\r\nimport {MutationObserverFactory} from '@angular/cdk/observers';\r\nimport {Settings} from '../../config/settings.service';\r\nimport {SUPPORTS_NATIVE_SCROLLBAR_STYLING} from './supports-native-scrollbar-styling';\r\n\r\n@Directive({\r\n    selector: '[customScrollbar]'\r\n})\r\nexport class CustomScrollbarDirective implements AfterViewInit, OnDestroy {\r\n    private subscriptions: Subscription[] = [];\r\n\r\n    /**\r\n     * Minimum length for scrollbar drag handle.\r\n     */\r\n    @Input('customScrollbarMinLength') minLength = 100;\r\n\r\n    /**\r\n     * Whether horizontal scrollbar should be always hidden.\r\n     */\r\n    @Input() suppressX = true;\r\n\r\n    /**\r\n     * scrollTop value set via custom setScrollTop() method.\r\n     * Perfect Scrollbar doesn't preserve scrollTop value on DOM\r\n     * element for some reason, so we need to keep it here.\r\n     */\r\n    private scrollTop = 0;\r\n\r\n    /**\r\n     * Whether custom or native scrollbar is used.\r\n     */\r\n    private native = true;\r\n\r\n    private scrollbar: PerfectScrollbar;\r\n\r\n    private observer: MutationObserver;\r\n\r\n    /**\r\n     * Used for debouncing the emitted values to the observeContent event.\r\n     */\r\n    private debouncer = new Subject<MutationRecord[]>();\r\n\r\n    constructor(\r\n        private el: ElementRef,\r\n        private renderer: Renderer2,\r\n        private breakpoints: BreakpointsService,\r\n        private ngZone: NgZone,\r\n        private mutationObserverFactory: MutationObserverFactory,\r\n        private config: Settings,\r\n        @Inject(SUPPORTS_NATIVE_SCROLLBAR_STYLING) private supportsNativeStyling: boolean,\r\n    ) {}\r\n\r\n    ngAfterViewInit() {\r\n        if (this.suppressX) {\r\n            this.renderer.addClass(this.el.nativeElement, 'scroll-container');\r\n        } else {\r\n            this.renderer.addClass(this.el.nativeElement, 'scroll-container-x');\r\n        }\r\n\r\n        if (this.shouldUseNative()) return;\r\n\r\n        this.scrollbar = new PerfectScrollbar(this.el.nativeElement, {\r\n            minScrollbarLength: this.minLength,\r\n            suppressScrollX: this.suppressX,\r\n            useBothWheelAxes: !this.suppressX,\r\n            wheelSpeed: 2\r\n        });\r\n\r\n        this.native = false;\r\n\r\n        this.bindToContentChange();\r\n    }\r\n\r\n    /**\r\n     * Update custom scrollbar.\r\n     */\r\n    public update() {\r\n        if (this.native) return;\r\n        this.scrollbar.update();\r\n    }\r\n\r\n    /**\r\n     * Scroll container top to given value.\r\n     */\r\n    public setScrollTop(value = 0) {\r\n        this.el.nativeElement.scrollTop = value;\r\n        this.scrollTop = this.el.nativeElement.scrollTop;\r\n        this.update();\r\n    }\r\n\r\n    ngOnDestroy() {\r\n        this.subscriptions.forEach(sub => sub.unsubscribe());\r\n        this.subscriptions = [];\r\n\r\n        if ( ! this.native) {\r\n            this.scrollbar.destroy();\r\n        }\r\n\r\n        // disable observer\r\n        this.debouncer.complete();\r\n        this.observer && this.observer.disconnect();\r\n    }\r\n\r\n    /**\r\n     * Check whether native or custom scrollbar should be used.\r\n     */\r\n    private shouldUseNative(): boolean {\r\n        if (this.config.get('vebto.forceCustomScrollbar')) return false;\r\n        if (/Edge/.test(navigator.userAgent)) return false;\r\n        if (this.breakpoints.isMobile$.value) return true;\r\n        return this.supportsNativeStyling;\r\n    }\r\n\r\n    /**\r\n     * Update custom scrollbar when element content changes.\r\n     */\r\n    private bindToContentChange() {\r\n        this.observer = this.ngZone.runOutsideAngular(() => {\r\n            return this.mutationObserverFactory.create((mutations: MutationRecord[]) => {\r\n                this.debouncer.next(mutations);\r\n            });\r\n        });\r\n\r\n        this.observer.observe(this.el.nativeElement, {\r\n            childList: true,\r\n            subtree: true\r\n        });\r\n\r\n        this.ngZone.runOutsideAngular(() => {\r\n            this.debouncer.subscribe((mutations: MutationRecord[]) => this.update());\r\n        });\r\n    }\r\n}\r\n","import {InjectionToken} from '@angular/core';\r\n\r\nexport const SUPPORTS_NATIVE_SCROLLBAR_STYLING = new InjectionToken<boolean>('SUPPORTS_NATIVE_SCROLLBAR_STYLING', {\r\n    providedIn: 'root',\r\n    factory: () => {\r\n        // Detect IE, does not support custom scrollbars\r\n        if (navigator.userAgent.indexOf('MSIE') !== -1\r\n            || navigator.appVersion.indexOf('Trident/') > -1) {\r\n            return false;\r\n        }\r\n\r\n        // Tested Element\r\n        const test = document.createElement('div');\r\n        test.className = '__sb-test';\r\n        test.style.overflow = 'scroll';\r\n        test.style.width = '40px';\r\n\r\n        // Is there another way to style pseudo-elements in JS ?\r\n        const style = document.createElement('style');\r\n        style.innerHTML = '.__sb-test::-webkit-scrollbar { width: 0px; }';\r\n\r\n        // Apply\r\n        test.appendChild(style);\r\n        document.body.appendChild(test);\r\n\r\n        // If css scrollbar is supported, than the scrollWidth should not be impacted\r\n        const result = test.scrollWidth == 40;\r\n\r\n        // Cleaning\r\n        document.body.removeChild(test);\r\n\r\n        return result;\r\n    }\r\n});\r\n","<h2 trans>Open a photo or design to get started.</h2>\r\n\r\n<div class=\"buttons\" *ngIf=\"!(newCanvasFormVisible$ | async); else canvasFormContainer\">\r\n    <button mat-flat-button color=\"accent\" (click)=\"openUploadDialog()\" trans>Open Photo</button>\r\n    <button mat-stroked-button color=\"accent\" (click)=\"newCanvasFormVisible$.next(true)\" trans>Create New</button>\r\n</div>\r\n\r\n<ng-template #canvasFormContainer>\r\n    <div class=\"new-canvas-container\">\r\n        <form class=\"many-inputs\" ngNativeValidate [formGroup]=\"newCanvasForm\" (ngSubmit)=\"createNewCanvas()\">\r\n            <div class=\"input-container\">\r\n                <label for=\"width\" trans>Width</label>\r\n                <input type=\"number\" id=\"width\" min=\"1\" formControlName=\"width\">\r\n            </div>\r\n\r\n            <div class=\"input-container\">\r\n                <label for=\"height\" trans>Height</label>\r\n                <input type=\"number\" id=\"height\" min=\"1\" formControlName=\"height\">\r\n            </div>\r\n\r\n            <div class=\"form-buttons\">\r\n                <button type=\"button\" mat-button (click)=\"newCanvasFormVisible$.next(false)\" trans>Cancel</button>\r\n                <button type=\"submit\" mat-raised-button color=\"accent\" trans>Create</button>\r\n            </div>\r\n        </form>\r\n    </div>\r\n</ng-template>\r\n\r\n<div class=\"separator\" *ngIf=\"sampleImages.length\">\r\n    <hr>\r\n    <span class=\"text\" trans>or use a sample</span>\r\n</div>\r\n\r\n<div class=\"samples\" customScrollbar [suppressX]=\"false\">\r\n    <img [src]=\"getSampleUrl(image, true)\" *ngFor=\"let image of sampleImages\" (click)=\"openSample(image)\">\r\n</div>\r\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {Settings} from 'common/core/config/settings.service';\nimport {OverlayPanelRef} from 'common/core/ui/overlay-panel/overlay-panel-ref';\nimport {FormControl, FormGroup} from '@angular/forms';\nimport {CanvasService} from '../../../image-editor/canvas/canvas.service';\nimport {ImportToolService} from '../../../image-editor/tools/import/import-tool.service';\nimport {BehaviorSubject} from 'rxjs';\nimport {SampleImage} from './sample-image';\n\n@Component({\n    selector: 'open-sample-image-panel',\n    templateUrl: './open-sample-image-panel.component.html',\n    styleUrls: ['./open-sample-image-panel.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None\n})\nexport class OpenSampleImagePanelComponent {\n    public newCanvasForm = new FormGroup({\n        width: new FormControl(800),\n        height: new FormControl(600),\n    });\n\n    public newCanvasFormVisible$ = new BehaviorSubject(false);\n    public sampleImages: SampleImage[];\n\n    constructor(\n        public importTool: ImportToolService,\n        private config: Settings,\n        private panelRef: OverlayPanelRef<OpenSampleImagePanelComponent>,\n        private canvas: CanvasService,\n    ) {\n        this.sampleImages = this.config.get('pixie.ui.openImageDialog.sampleImages');\n    }\n\n    public openUploadDialog() {\n        this.importTool.openUploadDialog({openAsBackground: true}).then(() => this.close());\n    }\n\n    public openSample(sample: SampleImage) {\n        if (typeof sample.action === 'function') {\n            sample.action();\n        } else {\n            const sampleUrl = this.getSampleUrl(sample);\n            if (sampleUrl.endsWith('.json')) {\n                this.importTool.loadStateFromUrl(sampleUrl).then(() => this.close());\n            } else {\n                this.importTool.openBackgroundImage(sampleUrl)\n                    .then(() => this.close());\n            }\n        }\n    }\n\n    public createNewCanvas() {\n        const width = this.newCanvasForm.get('width').value,\n            height = this.newCanvasForm.get('height').value;\n\n        this.config.set('pixie.blankCanvasSize', {width, height});\n        this.canvas.openNew(width, height).then(() => this.close());\n    }\n\n    public close() {\n        this.panelRef.close();\n    }\n\n    public getSampleUrl(image: SampleImage, useThumbnail = false) {\n        const url = (image.thumbnail && useThumbnail) ? image.thumbnail : image.url;\n        // prefix relative link with base url, if needed\n        if (url.indexOf('//') === -1) {\n            return this.config.getAssetUrl(url, true);\n        } else {\n            return url;\n        }\n    }\n}\n","import {Injectable} from '@angular/core';\nimport {CanvasService} from '../../canvas/canvas.service';\nimport {Object} from 'fabric/fabric-impl';\n\n@Injectable()\nexport class TransformToolService {\n\n    /**\n     * TransformToolService Constructor.\n     */\n    constructor(private canvas: CanvasService) {}\n\n    /**\n     * Rotate or skew the canvas. When type is basic, angle should be in 90 degree intervals.\n     */\n    public rotate(type: 'basic'|'skew', angle: number, direction?: 'left'|'right') {\n        if (type === 'basic') {\n            this.rotateFixed(angle);\n        } else {\n            this.rotateFree(angle, direction);\n        }\n    }\n\n    /**\n     * Flip canvas vertically or horizontally.\n     */\n    public flip(direction: 'horizontal'|'vertical') {\n        const prop = direction === 'horizontal' ? 'flipY' : 'flipX';\n\n        this.canvas.fabric().forEachObject(obj => {\n            obj[prop] = !obj[prop];\n        });\n\n        this.canvas.render();\n    }\n\n    /**\n     * Rotate properly by scaling canvas to new height after rotating main image by 90 degrees\n     */\n    private rotateFixed(originalAngle: number) {\n        this.canvas.zoom.set(1);\n\n        const angle = (this.canvas.getMainImage().angle + originalAngle) % 360;\n\n        const height = Math.abs(this.canvas.getMainImage().width*(Math.sin(angle*Math.PI/180)))+Math.abs(this.canvas.getMainImage().height*(Math.cos(angle*Math.PI/180))),\n            width = Math.abs(this.canvas.getMainImage().height*(Math.sin(angle*Math.PI/180)))+Math.abs(this.canvas.getMainImage().width*(Math.cos(angle*Math.PI/180)));\n\n        this.canvas.resize(width, height);\n        this.canvas.getMainImage().viewportCenter();\n\n        this.canvas.fabric().forEachObject(obj => {\n            obj.rotate((obj.angle + originalAngle) % 360);\n            obj.setCoords();\n        });\n\n        this.canvas.render();\n        this.canvas.zoom.fitToScreen();\n    }\n\n    /**\n     * Rotate objects of canvas while leaving canvas width/height intact.\n     */\n    private rotateFree(angle: number, direction: 'left'|'right') {\n        if (angle > 360 || angle < 0) return;\n        let resetOrigin = false;\n\n        this.canvas.fabric().forEachObject(obj => {\n            if (direction && direction === 'left') {\n                angle = obj.angle - 90;\n            } else if (direction && direction === 'right') {\n                angle = obj.angle + 90;\n            }\n\n            if ((obj.originX !== 'center' || obj.originY !== 'center') && obj.centeredRotation) {\n                this.setOriginToCenter(obj);\n                resetOrigin = true;\n            }\n\n            angle = angle > 360 ? 90 : angle < 0 ? 270 : angle;\n\n            obj.angle = angle;\n            obj.setCoords();\n\n            if (resetOrigin) {\n                this.setCenterToOrigin(obj);\n            }\n        });\n\n        this.canvas.render();\n    };\n\n    private setOriginToCenter(obj: Object) {\n        obj['_originalOriginX'] = obj.originX;\n        obj['_originalOriginY'] = obj.originY;\n\n        const center = obj.getCenterPoint();\n\n        obj.set({\n            originX: 'center',\n            originY: 'center',\n            left: center.x,\n            top: center.y\n        });\n    };\n\n    private setCenterToOrigin(obj: Object) {\n        const originPoint = obj.translateToOriginPoint(\n            obj.getCenterPoint(),\n            obj['_originalOriginX'],\n            obj['_originalOriginY']\n        );\n\n        obj.set({\n            originX: obj['_originalOriginX'],\n            originY: obj['_originalOriginY'],\n            left: originPoint.x,\n            top: originPoint.y\n        });\n    };\n\n}\n","import {Injectable} from '@angular/core';\nimport {Store} from '@ngxs/store';\nimport {CloseForePanel, OpenPanel} from '../../image-editor/state/editor-state-actions';\nimport {DrawerName} from './drawers/drawer-name.enum';\n\n@Injectable()\nexport class EditorControlsService {\n    constructor(private store: Store) {}\n\n    public openPanel(name: DrawerName) {\n        this.store.dispatch(new OpenPanel(name));\n    }\n\n    public closeCurrentPanel() {\n        this.store.dispatch(new CloseForePanel());\n    }\n}\n","import {ElementRef, Injectable} from '@angular/core';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {OpenSampleImagePanelComponent} from './open-sample-image-panel.component';\r\nimport {OverlayPanel} from 'common/core/ui/overlay-panel/overlay-panel.service';\r\nimport {OverlayPanelRef} from 'common/core/ui/overlay-panel/overlay-panel-ref';\r\nimport {CanvasStateService} from '../../../image-editor/canvas/canvas-state.service';\r\nimport {Store} from '@ngxs/store';\r\nimport {EditorState} from '../../../image-editor/state/editor-state';\r\n\r\n@Injectable({\r\n    providedIn: 'root',\r\n})\r\nexport class OpenSampleImagePanelService {\r\n    private sampleImagePanelRef: OverlayPanelRef<OpenSampleImagePanelComponent>;\r\n\r\n    constructor(\r\n        private canvasState: CanvasStateService,\r\n        private config: Settings,\r\n        private overlayPanel: OverlayPanel,\r\n        private store: Store,\r\n    ) {}\r\n\r\n    public open() {\r\n        if ( ! this.shouldShowOpenImageDialog()) return;\r\n\r\n        const positionStrategy = this.overlayPanel.overlay.position()\r\n            .flexibleConnectedTo(new ElementRef(this.canvasState.wrapperEl))\r\n            .withPositions([{overlayX: 'center', overlayY: 'center', originX: 'center', originY: 'center'}]);\r\n\r\n        this.sampleImagePanelRef = this.overlayPanel.open(\r\n            OpenSampleImagePanelComponent,\r\n            {\r\n                hasBackdrop: true,\r\n                closeOnBackdropClick: false,\r\n                positionStrategy: positionStrategy,\r\n                panelClass: ['floating-panel', 'sample-image-panel']\r\n            }\r\n        );\r\n\r\n        this.sampleImagePanelRef.afterClosed().subscribe(() => {\r\n            this.sampleImagePanelRef = null;\r\n        });\r\n    }\r\n\r\n    public reposition() {\r\n        if ( ! this.sampleImagePanelRef) return;\r\n        this.sampleImagePanelRef.updatePosition();\r\n    }\r\n\r\n    /**\r\n     * Check if \"open image\" dialog window should be shown.\r\n     */\r\n    private shouldShowOpenImageDialog() {\r\n        return this.store.selectSnapshot(EditorState.visible) &&\r\n            !this.sampleImagePanelRef;\r\n    }\r\n}\r\n","import {ElementRef, Injectable, Injector, TemplateRef} from '@angular/core';\r\nimport {\r\n    CloseScrollStrategy,\r\n    ConnectedPosition,\r\n    Overlay,\r\n    OverlayConfig,\r\n    PositionStrategy,\r\n    ScrollStrategy\r\n} from '@angular/cdk/overlay';\r\nimport {ComponentPortal, ComponentType, PortalInjector, TemplatePortal} from '@angular/cdk/portal';\r\nimport {BreakpointsService} from '../breakpoints.service';\r\nimport {OverlayPanelRef} from './overlay-panel-ref';\r\nimport {OVERLAY_PANEL_DATA} from './overlay-panel-data';\r\nimport {OverlayPanelConfig, OverlayPanelPosition} from './overlay-panel-config';\r\nimport {FullscreenOverlayScrollStrategy} from './fullscreen-overlay-scroll-strategy';\r\nimport {filter} from 'rxjs/operators';\r\nimport {ESCAPE} from '@angular/cdk/keycodes';\r\n\r\nconst DEFAULT_CONFIG = {\r\n    hasBackdrop: true,\r\n    closeOnBackdropClick: true,\r\n    panelClass: 'overlay-panel',\r\n};\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class OverlayPanel {\r\n    constructor(\r\n        public overlay: Overlay,\r\n        private breakpoints: BreakpointsService,\r\n        private injector: Injector,\r\n    ) {}\r\n\r\n    public open<T>(cmp: ComponentType<T> | TemplateRef<any>, userConfig: OverlayPanelConfig): OverlayPanelRef<T> {\r\n        const config = Object.assign({}, DEFAULT_CONFIG, userConfig);\r\n        const cdkConfig = {\r\n            positionStrategy: this.getPositionStrategy(config),\r\n            hasBackdrop: config.hasBackdrop,\r\n            panelClass: config.panelClass,\r\n            backdropClass: config.backdropClass,\r\n            scrollStrategy: this.getScrollStrategy(config),\r\n            disposeOnNavigation: true,\r\n        } as OverlayConfig;\r\n\r\n        if (config.width) cdkConfig.width = config.width;\r\n        if (config.height) cdkConfig.height = config.height;\r\n\r\n        const overlayRef = this.overlay.create(cdkConfig);\r\n        const overlayPanelRef = new OverlayPanelRef<T>(overlayRef);\r\n        const portal = cmp instanceof TemplateRef ?\r\n            new TemplatePortal(cmp, config.viewContainerRef, config.data) :\r\n            new ComponentPortal(cmp, null, this.createInjector(config, overlayPanelRef));\r\n        overlayPanelRef.componentRef = overlayRef.attach(portal);\r\n\r\n        if (config.closeOnBackdropClick) {\r\n            overlayRef.backdropClick().subscribe(() => overlayPanelRef.close());\r\n            overlayRef.keydownEvents()\r\n                .pipe(filter(e => e.keyCode === ESCAPE))\r\n                .subscribe(() => overlayPanelRef.close());\r\n        }\r\n\r\n        return overlayPanelRef;\r\n    }\r\n\r\n    private getScrollStrategy(config: OverlayPanelConfig): ScrollStrategy {\r\n        if (config.fullScreen) {\r\n            return new FullscreenOverlayScrollStrategy();\r\n        } else if (config.scrollStrategy === 'close') {\r\n            return this.overlay.scrollStrategies.close();\r\n        } else {\r\n            return null;\r\n        }\r\n    }\r\n\r\n    private createInjector(config: OverlayPanelConfig, dialogRef: OverlayPanelRef<any>): PortalInjector {\r\n        const injectionTokens = new WeakMap();\r\n        injectionTokens.set(OverlayPanelRef, dialogRef);\r\n        injectionTokens.set(OVERLAY_PANEL_DATA, config.data || null);\r\n        return new PortalInjector(this.injector, injectionTokens);\r\n    }\r\n\r\n    private getPositionStrategy(config: OverlayPanelConfig) {\r\n        if (config.positionStrategy) {\r\n            return config.positionStrategy;\r\n        }\r\n\r\n        const position = this.breakpoints.isMobile$.value ?\r\n            (config.mobilePosition || config.position) :\r\n            config.position;\r\n\r\n        if (config.origin === 'global' || this.positionIsGlobal(position)) {\r\n            return this.getGlobalPositionStrategy(position);\r\n        } else {\r\n            return this.getConnectedPositionStrategy(position, config.origin);\r\n        }\r\n    }\r\n\r\n    private positionIsGlobal(position: OverlayPanelPosition) {\r\n        return position === 'center' || !Array.isArray(position);\r\n    }\r\n\r\n    private getGlobalPositionStrategy(position: OverlayPanelPosition): PositionStrategy {\r\n        if (position === 'center') {\r\n            return this.overlay.position().global().centerHorizontally().centerVertically();\r\n        } else {\r\n            const global = this.overlay.position().global();\r\n            Object.keys(position).forEach(key => {\r\n                global[key](position[key]);\r\n            });\r\n            return global;\r\n        }\r\n    }\r\n\r\n    private getConnectedPositionStrategy(position: OverlayPanelPosition, origin: ElementRef) {\r\n        return this.overlay.position()\r\n            .flexibleConnectedTo(origin)\r\n            .withPositions(position as ConnectedPosition[])\r\n            .withPush(true)\r\n            .withViewportMargin(5);\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {fabric} from 'fabric';\nimport {VLineBrush} from './brushes/v-line-brush';\nimport {HLineBrush} from './brushes/h-line-brush';\nimport {SquareBrush} from './brushes/square-brush';\nimport {IEvent} from 'fabric/fabric-impl';\nimport {CanvasStateService} from '../../canvas/canvas-state.service';\nimport {BrushSizes} from './draw-defaults';\nimport {ObjectNames} from '../../objects/object-names.enum';\nimport {Settings} from '@common/core/config/settings.service';\nimport {DiamondBrush} from './brushes/diamond-brush';\n\n@Injectable()\nexport class DrawToolService {\n    private enabled = false;\n\n    private customBrushes = {\n        VLineBrush: VLineBrush,\n        HLineBrush: HLineBrush,\n        DiamondBrush: DiamondBrush,\n        SquareBrush: SquareBrush,\n    };\n\n    public currentBrush = {\n        type: 'PencilBrush',\n        color: this.config.get('pixie.objectDefaults.global.fill'),\n        width: BrushSizes[1],\n    };\n\n    constructor(\n        private config: Settings,\n        private canvasState: CanvasStateService,\n    ) {}\n\n    /**\n     * Enable drawing mode on canvas.\n     */\n    public enable() {\n        this.canvasState.fabric.isDrawingMode = true;\n        this.setBrushType(this.currentBrush.type);\n        this.enabled = true;\n        this.canvasState.fabric.on('object:added', this.onDrawingAdded);\n    }\n\n    /**\n     * Disable drawing mode on canvas.\n     */\n    public disable() {\n        this.canvasState.fabric.isDrawingMode = false;\n        this.enabled = false;\n        this.canvasState.fabric.off('object:added', this.onDrawingAdded);\n    }\n\n    /**\n     * Get type of current drawing brush.\n     */\n    public getBrushType(): string {\n        return this.currentBrush.type;\n    }\n\n    /**\n     * Change type of drawing brush.\n     */\n    public setBrushType(type: string) {\n        this.currentBrush.type = type;\n        const brush = fabric[type] ?\n            new fabric[type](this.canvasState.fabric) :\n            this.customBrushes[type](this.canvasState.fabric);\n        this.canvasState.fabric.freeDrawingBrush = brush;\n        this.applyBrushStyles();\n    }\n\n    /**\n     * Apply current brush styles to fabric.js FreeDrawingBrush instance.\n     */\n    private applyBrushStyles() {\n        Object.keys(this.currentBrush)\n            .forEach(key => {\n                this.canvasState.fabric.freeDrawingBrush[key] = this.currentBrush[key];\n            });\n    }\n\n    /**\n     * Change size of drawing brush.\n     */\n    public setBrushSize(size: number) {\n        this.currentBrush.width = size;\n        this.applyBrushStyles();\n    }\n\n    /**\n     * Get size of drawing brush.\n     */\n    public getBrushSize(): number {\n        return this.currentBrush.width;\n    }\n\n    /**\n     * Change color of drawing brush.\n     */\n    public setBrushColor(color: string) {\n        this.currentBrush.color = color;\n        this.applyBrushStyles();\n    }\n\n    /**\n     * Get color of drawing brush.\n     */\n    public getBrushColor(): string {\n        return this.currentBrush.color;\n    }\n\n    /**\n     * Added a new to drawing path added by canvas.\n     */\n    private onDrawingAdded(e: IEvent) {\n        if (e.target.type !== 'path' && e.target.type !== 'group') return;\n        e.target.name = ObjectNames.drawing.name;\n    }\n}\n","import {fabric} from 'fabric';\r\nimport {Injectable} from '@angular/core';\r\nimport {ActiveObjectService} from '../../canvas/active-object/active-object.service';\r\nimport {gradientPresets} from '../gradient-presets';\r\nimport {CanvasService} from '../../canvas/canvas.service';\r\nimport {IGradientOptions} from 'fabric/fabric-impl';\r\n\r\n@Injectable()\r\nexport class FillToolService {\r\n    constructor(\r\n        private activeObject: ActiveObjectService,\r\n        private canvas: CanvasService\r\n    ) {}\r\n\r\n    public withPattern(url: string) {\r\n        fabric.util.loadImage(url, img => {\r\n            const pattern = new fabric.Pattern({\r\n                source: img,\r\n                repeat: 'repeat'\r\n            });\r\n            this.activeObject.setValues({fill: pattern});\r\n        });\r\n    }\r\n\r\n    public withGradient(index, type: 'stroke'|'fill' = 'fill') {\r\n        const activeObject =  this.activeObject.get();\r\n        if ( ! activeObject) return;\r\n\r\n        activeObject.setGradient(type, gradientPresets[index]);\r\n        this.activeObject.propsChanged$.next();\r\n        this.canvas.render();\r\n    }\r\n\r\n    public addGradient(config: IGradientOptions) {\r\n        gradientPresets.unshift(config);\r\n    }\r\n}\r\n","import { InjectionToken } from '@angular/core';\r\n\r\nexport const OVERLAY_PANEL_DATA = new InjectionToken<any>('OVERLAY_PANEL_DATA');\r\n","import {ScrollStrategy} from '@angular/cdk/overlay';\r\n\r\nexport class FullscreenOverlayScrollStrategy implements ScrollStrategy {\r\n    public attach() {}\r\n\r\n    public enable() {\r\n        document.documentElement.classList.add('be-fullscreen-overlay-scrollblock');\r\n    }\r\n\r\n    public disable() {\r\n        document.documentElement.classList.remove('be-fullscreen-overlay-scrollblock');\r\n    }\r\n}\r\n","import {fabric} from 'fabric';\r\nimport {Canvas} from 'fabric/fabric-impl';\r\n\r\nexport const VLineBrush = (canvas: Canvas) => {\r\n    let vLinePatternBrush = new fabric.PatternBrush(canvas);\r\n\r\n    vLinePatternBrush.getPatternSrc = function() {\r\n        let patternCanvas = document.createElement('canvas');\r\n        patternCanvas.width = patternCanvas.height = 10;\r\n        let ctx = patternCanvas.getContext('2d');\r\n\r\n        ctx.strokeStyle = this.color;\r\n        ctx.lineWidth = 5;\r\n        ctx.beginPath();\r\n        ctx.moveTo(0, 5);\r\n        ctx.lineTo(10, 5);\r\n        ctx.closePath();\r\n        ctx.stroke();\r\n\r\n        return patternCanvas;\r\n    };\r\n\r\n    return vLinePatternBrush;\r\n};\r\n","import {fabric} from 'fabric';\r\nimport {Canvas} from 'fabric/fabric-impl';\r\n\r\nexport const HLineBrush = (canvas: Canvas) => {\r\n    let hLinePatternBrush = new fabric.PatternBrush(canvas);\r\n\r\n    hLinePatternBrush.getPatternSrc = function() {\r\n        let patternCanvas = document.createElement('canvas');\r\n        patternCanvas.width = patternCanvas.height = 10;\r\n        let ctx = patternCanvas.getContext('2d');\r\n\r\n        ctx.strokeStyle = this.color;\r\n        ctx.lineWidth = 5;\r\n        ctx.beginPath();\r\n        ctx.moveTo(5, 0);\r\n        ctx.lineTo(5, 10);\r\n        ctx.closePath();\r\n        ctx.stroke();\r\n\r\n        return patternCanvas;\r\n    };\r\n\r\n    return hLinePatternBrush;\r\n};","import {fabric} from 'fabric';\r\nimport {Canvas} from 'fabric/fabric-impl';\r\n\r\nexport const SquareBrush = (canvas: Canvas) => {\r\n    let squareBrush = new fabric.PatternBrush(canvas);\r\n\r\n    squareBrush.getPatternSrc = function() {\r\n        let squareWidth = 10, squareDistance = 2;\r\n\r\n        let patternCanvas = document.createElement('canvas');\r\n        patternCanvas.width = patternCanvas.height = squareWidth + squareDistance;\r\n        let ctx = patternCanvas.getContext('2d');\r\n\r\n        ctx.fillStyle = this.color;\r\n        ctx.fillRect(0, 0, squareWidth, squareWidth);\r\n\r\n        return patternCanvas;\r\n    };\r\n\r\n    return squareBrush;\r\n};","import {fabric} from 'fabric';\r\nimport {Canvas} from 'fabric/fabric-impl';\r\n\r\nexport const DiamondBrush = (canvas: Canvas) => {\r\n    const diamondBrush = new fabric.PatternBrush(canvas);\r\n\r\n    diamondBrush.getPatternSrc = function() {\r\n        let squareWidth = 10, squareDistance = 5;\r\n        let patternCanvas = document.createElement('canvas');\r\n\r\n        let rect = new fabric.Rect({\r\n            width: squareWidth,\r\n            height: squareWidth,\r\n            angle: 45,\r\n            fill: this.color\r\n        });\r\n\r\n        const canvasWidth = rect.getBoundingRect().width;\r\n\r\n        patternCanvas.width = patternCanvas.height = canvasWidth + squareDistance;\r\n        rect.set({ left: canvasWidth / 2, top: canvasWidth / 2 });\r\n\r\n        let ctx = patternCanvas.getContext('2d');\r\n        rect.render(ctx);\r\n\r\n        return patternCanvas;\r\n    };\r\n\r\n    return diamondBrush;\r\n};\r\n","import {IGradientOptions} from 'fabric/fabric-impl';\r\n\r\nexport const gradientPresets: IGradientOptions[] = [\r\n    {\r\n        type: 'linear',\r\n        x1: -80,\r\n        y1: 0,\r\n        x2: 80,\r\n        y2: 0,\r\n        colorStops: {\r\n            0: '#ffe47b',\r\n            1: 'rgb(111,154,211)'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'linear',\r\n        x1: 0,\r\n        y1: -120,\r\n        x2: 0,\r\n        y2: 120,\r\n        colorStops: {\r\n            0: '#ff4040',\r\n            1: '#e6399b'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'linear',\r\n        x1: -90,\r\n        y1: -90,\r\n        x2: 90,\r\n        y2: 90,\r\n        colorStops: {\r\n            0: 'rgb(166,111,213)',\r\n            0.5: 'rgba(106, 72, 215, 0.5)',\r\n            1: '#200772'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'radial',\r\n        r1: 100,\r\n        r2: 10,\r\n        x1: 0,\r\n        y1: 0,\r\n        x2: 0,\r\n        y2: 0,\r\n        colorStops: {\r\n            0: '#FF4F4F',\r\n            1: 'rgb(255, 239, 64)'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'radial',\r\n        r1: 100,\r\n        r2: 10,\r\n        x1: 0,\r\n        y1: 0,\r\n        x2: 20,\r\n        y2: 20,\r\n        colorStops: {\r\n            0: '#ffe47b',\r\n            0.5: 'rgb(111,154,211)',\r\n            1: 'rgb(166,111,213)'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'radial',\r\n        r1: 50,\r\n        r2: 80,\r\n        x1: 45,\r\n        y1: 45,\r\n        x2: 52,\r\n        y2: 50,\r\n        colorStops: {\r\n            0: 'rgb(155, 237, 0)',\r\n            1: 'rgba(0, 164, 128,0.4)'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'linear',\r\n        x1: -90,\r\n        y1: -90,\r\n        x2: 90,\r\n        y2: 90,\r\n        colorStops: {\r\n            0: '#9ecb2d',\r\n            0.5: '#72aa00',\r\n            1: '#bfd255'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'radial',\r\n        r1: 100,\r\n        r2: 50,\r\n        x1: 30,\r\n        y1: 0,\r\n        x2: 0,\r\n        y2: 0,\r\n        colorStops: {\r\n            0: '#aebcbf',\r\n            1: '#0a0809'\r\n        }\r\n    },\r\n\r\n    {\r\n        type: 'linear',\r\n        x1: -80,\r\n        y1: 0,\r\n        x2: 80,\r\n        y2: 0,\r\n        colorStops: {\r\n            0: '#ffffff',\r\n            1: '#f6f6f6'\r\n        }\r\n    },\r\n    {\r\n        type: 'linear',\r\n        x1: 0,\r\n        y1: -120,\r\n        x2: 0,\r\n        y2: 120,\r\n        colorStops: {\r\n            0: '#fefcea',\r\n            1: '#f1da36'\r\n        }\r\n    },\r\n    {\r\n        type: 'linear',\r\n        x1: -90,\r\n        y1: -90,\r\n        x2: 90,\r\n        y2: 90,\r\n        colorStops: {\r\n            0: 'rgb(166,111,213)',\r\n            0.5: 'rgba(106, 72, 215, 0.5)',\r\n            1: '#ff1a00'\r\n        }\r\n    },\r\n    {\r\n        type: 'linear',\r\n        x1: 0,\r\n        y1: -120,\r\n        x2: 0,\r\n        y2: 120,\r\n        colorStops: {\r\n            0: '#b7deed',\r\n            1: '#21b4e2'\r\n        }\r\n    },\r\n    {\r\n        type: 'linear',\r\n        x1: -80,\r\n        y1: 100,\r\n        x2: 80,\r\n        y2: -100,\r\n        colorStops: {\r\n            0: '#ffe47b',\r\n            1: 'rgb(111,154,211)'\r\n        }\r\n    },\r\n];\r\n","import { Observable } from '../Observable';\nimport { async } from '../scheduler/async';\nimport { isNumeric } from '../util/isNumeric';\nexport function interval(period = 0, scheduler = async) {\n    if (!isNumeric(period) || period < 0) {\n        period = 0;\n    }\n    if (!scheduler || typeof scheduler.schedule !== 'function') {\n        scheduler = async;\n    }\n    return new Observable(subscriber => {\n        subscriber.add(scheduler.schedule(dispatch, period, { subscriber, counter: 0, period }));\n        return subscriber;\n    });\n}\nfunction dispatch(state) {\n    const { subscriber, counter, period } = state;\n    subscriber.next(counter);\n    this.schedule({ subscriber, counter: counter + 1, period }, period);\n}\n//# sourceMappingURL=interval.js.map","import { Injectable, NgZone, Inject, ɵɵdefineInjectable, ɵɵinject, InjectionToken, Directive, ElementRef, Optional, Input, TemplateRef, EventEmitter, isDevMode, SkipSelf, ViewContainerRef, ChangeDetectorRef, ContentChildren, ContentChild, Output, NgModule } from '@angular/core';\nimport { DOCUMENT } from '@angular/common';\nimport { ViewportRuler, ScrollDispatcher, CdkScrollableModule } from '@angular/cdk/scrolling';\nimport { normalizePassiveListenerOptions, _getShadowRoot } from '@angular/cdk/platform';\nimport { coerceBooleanProperty, coerceElement, coerceNumberProperty, coerceArray } from '@angular/cdk/coercion';\nimport { Subject, Subscription, interval, animationFrameScheduler, Observable, merge } from 'rxjs';\nimport { takeUntil, map, take, startWith, tap, switchMap } from 'rxjs/operators';\nimport { Directionality } from '@angular/cdk/bidi';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-styling.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Extended CSSStyleDeclaration that includes a couple of drag-related\n * properties that aren't in the built-in TS typings.\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/scrolling';\nimport * as ɵngcc2 from '@angular/cdk/bidi';\nfunction DragCSSStyleDeclaration() { }\nif (false) {\n    /** @type {?} */\n    DragCSSStyleDeclaration.prototype.webkitUserDrag;\n    /** @type {?} */\n    DragCSSStyleDeclaration.prototype.MozUserSelect;\n}\n/**\n * Shallow-extends a stylesheet object with another stylesheet object.\n * \\@docs-private\n * @param {?} dest\n * @param {?} source\n * @return {?}\n */\nfunction extendStyles(dest, source) {\n    for (let key in source) {\n        if (source.hasOwnProperty(key)) {\n            dest[key] = (/** @type {?} */ (source[key]));\n        }\n    }\n    return dest;\n}\n/**\n * Toggles whether the native drag interactions should be enabled for an element.\n * \\@docs-private\n * @param {?} element Element on which to toggle the drag interactions.\n * @param {?} enable Whether the drag interactions should be enabled.\n * @return {?}\n */\nfunction toggleNativeDragInteractions(element, enable) {\n    /** @type {?} */\n    const userSelect = enable ? '' : 'none';\n    extendStyles(element.style, {\n        touchAction: enable ? '' : 'none',\n        webkitUserDrag: enable ? '' : 'none',\n        webkitTapHighlightColor: enable ? '' : 'transparent',\n        userSelect: userSelect,\n        msUserSelect: userSelect,\n        webkitUserSelect: userSelect,\n        MozUserSelect: userSelect\n    });\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/transition-duration.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Parses a CSS time value to milliseconds.\n * @param {?} value\n * @return {?}\n */\nfunction parseCssTimeUnitsToMs(value) {\n    // Some browsers will return it in seconds, whereas others will return milliseconds.\n    /** @type {?} */\n    const multiplier = value.toLowerCase().indexOf('ms') > -1 ? 1 : 1000;\n    return parseFloat(value) * multiplier;\n}\n/**\n * Gets the transform transition duration, including the delay, of an element in milliseconds.\n * @param {?} element\n * @return {?}\n */\nfunction getTransformTransitionDurationInMs(element) {\n    /** @type {?} */\n    const computedStyle = getComputedStyle(element);\n    /** @type {?} */\n    const transitionedProperties = parseCssPropertyValue(computedStyle, 'transition-property');\n    /** @type {?} */\n    const property = transitionedProperties.find((/**\n     * @param {?} prop\n     * @return {?}\n     */\n    prop => prop === 'transform' || prop === 'all'));\n    // If there's no transition for `all` or `transform`, we shouldn't do anything.\n    if (!property) {\n        return 0;\n    }\n    // Get the index of the property that we're interested in and match\n    // it up to the same index in `transition-delay` and `transition-duration`.\n    /** @type {?} */\n    const propertyIndex = transitionedProperties.indexOf(property);\n    /** @type {?} */\n    const rawDurations = parseCssPropertyValue(computedStyle, 'transition-duration');\n    /** @type {?} */\n    const rawDelays = parseCssPropertyValue(computedStyle, 'transition-delay');\n    return parseCssTimeUnitsToMs(rawDurations[propertyIndex]) +\n        parseCssTimeUnitsToMs(rawDelays[propertyIndex]);\n}\n/**\n * Parses out multiple values from a computed style into an array.\n * @param {?} computedStyle\n * @param {?} name\n * @return {?}\n */\nfunction parseCssPropertyValue(computedStyle, name) {\n    /** @type {?} */\n    const value = computedStyle.getPropertyValue(name);\n    return value.split(',').map((/**\n     * @param {?} part\n     * @return {?}\n     */\n    part => part.trim()));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/client-rect.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Gets a mutable version of an element's bounding `ClientRect`.\n * @param {?} element\n * @return {?}\n */\nfunction getMutableClientRect(element) {\n    /** @type {?} */\n    const clientRect = element.getBoundingClientRect();\n    // We need to clone the `clientRect` here, because all the values on it are readonly\n    // and we need to be able to update them. Also we can't use a spread here, because\n    // the values on a `ClientRect` aren't own properties. See:\n    // https://developer.mozilla.org/en-US/docs/Web/API/Element/getBoundingClientRect#Notes\n    return {\n        top: clientRect.top,\n        right: clientRect.right,\n        bottom: clientRect.bottom,\n        left: clientRect.left,\n        width: clientRect.width,\n        height: clientRect.height\n    };\n}\n/**\n * Checks whether some coordinates are within a `ClientRect`.\n * @param {?} clientRect ClientRect that is being checked.\n * @param {?} x Coordinates along the X axis.\n * @param {?} y Coordinates along the Y axis.\n * @return {?}\n */\nfunction isInsideClientRect(clientRect, x, y) {\n    const { top, bottom, left, right } = clientRect;\n    return y >= top && y <= bottom && x >= left && x <= right;\n}\n/**\n * Updates the top/left positions of a `ClientRect`, as well as their bottom/right counterparts.\n * @param {?} clientRect `ClientRect` that should be updated.\n * @param {?} top Amount to add to the `top` position.\n * @param {?} left Amount to add to the `left` position.\n * @return {?}\n */\nfunction adjustClientRect(clientRect, top, left) {\n    clientRect.top += top;\n    clientRect.bottom = clientRect.top + clientRect.height;\n    clientRect.left += left;\n    clientRect.right = clientRect.left + clientRect.width;\n}\n/**\n * Checks whether the pointer coordinates are close to a ClientRect.\n * @param {?} rect ClientRect to check against.\n * @param {?} threshold Threshold around the ClientRect.\n * @param {?} pointerX Coordinates along the X axis.\n * @param {?} pointerY Coordinates along the Y axis.\n * @return {?}\n */\nfunction isPointerNearClientRect(rect, threshold, pointerX, pointerY) {\n    const { top, right, bottom, left, width, height } = rect;\n    /** @type {?} */\n    const xThreshold = width * threshold;\n    /** @type {?} */\n    const yThreshold = height * threshold;\n    return pointerY > top - yThreshold && pointerY < bottom + yThreshold &&\n        pointerX > left - xThreshold && pointerX < right + xThreshold;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/parent-position-tracker.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Object holding the scroll position of something.\n * @record\n */\nfunction ScrollPosition() { }\nif (false) {\n    /** @type {?} */\n    ScrollPosition.prototype.top;\n    /** @type {?} */\n    ScrollPosition.prototype.left;\n}\n/**\n * Keeps track of the scroll position and dimensions of the parents of an element.\n */\nclass ParentPositionTracker {\n    /**\n     * @param {?} _document\n     * @param {?} _viewportRuler\n     */\n    constructor(_document, _viewportRuler) {\n        this._document = _document;\n        this._viewportRuler = _viewportRuler;\n        /**\n         * Cached positions of the scrollable parent elements.\n         */\n        this.positions = new Map();\n    }\n    /**\n     * Clears the cached positions.\n     * @return {?}\n     */\n    clear() {\n        this.positions.clear();\n    }\n    /**\n     * Caches the positions. Should be called at the beginning of a drag sequence.\n     * @param {?} elements\n     * @return {?}\n     */\n    cache(elements) {\n        this.clear();\n        this.positions.set(this._document, {\n            scrollPosition: this._viewportRuler.getViewportScrollPosition(),\n        });\n        elements.forEach((/**\n         * @param {?} element\n         * @return {?}\n         */\n        element => {\n            this.positions.set(element, {\n                scrollPosition: { top: element.scrollTop, left: element.scrollLeft },\n                clientRect: getMutableClientRect(element)\n            });\n        }));\n    }\n    /**\n     * Handles scrolling while a drag is taking place.\n     * @param {?} event\n     * @return {?}\n     */\n    handleScroll(event) {\n        /** @type {?} */\n        const target = (/** @type {?} */ (event.target));\n        /** @type {?} */\n        const cachedPosition = this.positions.get(target);\n        if (!cachedPosition) {\n            return null;\n        }\n        // Used when figuring out whether an element is inside the scroll parent. If the scrolled\n        // parent is the `document`, we use the `documentElement`, because IE doesn't support\n        // `contains` on the `document`.\n        /** @type {?} */\n        const scrolledParentNode = target === this._document ? target.documentElement : target;\n        /** @type {?} */\n        const scrollPosition = cachedPosition.scrollPosition;\n        /** @type {?} */\n        let newTop;\n        /** @type {?} */\n        let newLeft;\n        if (target === this._document) {\n            /** @type {?} */\n            const viewportScrollPosition = (/** @type {?} */ (this._viewportRuler)).getViewportScrollPosition();\n            newTop = viewportScrollPosition.top;\n            newLeft = viewportScrollPosition.left;\n        }\n        else {\n            newTop = ((/** @type {?} */ (target))).scrollTop;\n            newLeft = ((/** @type {?} */ (target))).scrollLeft;\n        }\n        /** @type {?} */\n        const topDifference = scrollPosition.top - newTop;\n        /** @type {?} */\n        const leftDifference = scrollPosition.left - newLeft;\n        // Go through and update the cached positions of the scroll\n        // parents that are inside the element that was scrolled.\n        this.positions.forEach((/**\n         * @param {?} position\n         * @param {?} node\n         * @return {?}\n         */\n        (position, node) => {\n            if (position.clientRect && target !== node && scrolledParentNode.contains(node)) {\n                adjustClientRect(position.clientRect, topDifference, leftDifference);\n            }\n        }));\n        scrollPosition.top = newTop;\n        scrollPosition.left = newLeft;\n        return { top: topDifference, left: leftDifference };\n    }\n}\nif (false) {\n    /**\n     * Cached positions of the scrollable parent elements.\n     * @type {?}\n     */\n    ParentPositionTracker.prototype.positions;\n    /**\n     * @type {?}\n     * @private\n     */\n    ParentPositionTracker.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    ParentPositionTracker.prototype._viewportRuler;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Object that can be used to configure the behavior of DragRef.\n * @record\n */\nfunction DragRefConfig() { }\nif (false) {\n    /**\n     * Minimum amount of pixels that the user should\n     * drag, before the CDK initiates a drag sequence.\n     * @type {?}\n     */\n    DragRefConfig.prototype.dragStartThreshold;\n    /**\n     * Amount the pixels the user should drag before the CDK\n     * considers them to have changed the drag direction.\n     * @type {?}\n     */\n    DragRefConfig.prototype.pointerDirectionChangeThreshold;\n    /**\n     * `z-index` for the absolutely-positioned elements that are created by the drag item.\n     * @type {?|undefined}\n     */\n    DragRefConfig.prototype.zIndex;\n}\n/**\n * Options that can be used to bind a passive event listener.\n * @type {?}\n */\nconst passiveEventListenerOptions = normalizePassiveListenerOptions({ passive: true });\n/**\n * Options that can be used to bind an active event listener.\n * @type {?}\n */\nconst activeEventListenerOptions = normalizePassiveListenerOptions({ passive: false });\n/**\n * Time in milliseconds for which to ignore mouse events, after\n * receiving a touch event. Used to avoid doing double work for\n * touch devices where the browser fires fake mouse events, in\n * addition to touch events.\n * @type {?}\n */\nconst MOUSE_EVENT_IGNORE_TIME = 800;\n/**\n * Internal compile-time-only representation of a `DragRef`.\n * Used to avoid circular import issues between the `DragRef` and the `DropListRef`.\n * \\@docs-private\n * @record\n */\nfunction DragRefInternal() { }\n/**\n * Template that can be used to create a drag helper element (e.g. a preview or a placeholder).\n * @record\n * @template T\n */\nfunction DragHelperTemplate() { }\nif (false) {\n    /** @type {?} */\n    DragHelperTemplate.prototype.template;\n    /** @type {?} */\n    DragHelperTemplate.prototype.viewContainer;\n    /** @type {?} */\n    DragHelperTemplate.prototype.context;\n}\n/**\n * Template that can be used to create a drag preview element.\n * @record\n * @template T\n */\nfunction DragPreviewTemplate() { }\nif (false) {\n    /** @type {?|undefined} */\n    DragPreviewTemplate.prototype.matchSize;\n}\n/**\n * Point on the page or within an element.\n * @record\n */\nfunction Point() { }\nif (false) {\n    /** @type {?} */\n    Point.prototype.x;\n    /** @type {?} */\n    Point.prototype.y;\n}\n/**\n * Reference to a draggable item. Used to manipulate or dispose of the item.\n * @template T\n */\nclass DragRef {\n    /**\n     * @param {?} element\n     * @param {?} _config\n     * @param {?} _document\n     * @param {?} _ngZone\n     * @param {?} _viewportRuler\n     * @param {?} _dragDropRegistry\n     */\n    constructor(element, _config, _document, _ngZone, _viewportRuler, _dragDropRegistry) {\n        this._config = _config;\n        this._document = _document;\n        this._ngZone = _ngZone;\n        this._viewportRuler = _viewportRuler;\n        this._dragDropRegistry = _dragDropRegistry;\n        /**\n         * CSS `transform` applied to the element when it isn't being dragged. We need a\n         * passive transform in order for the dragged element to retain its new position\n         * after the user has stopped dragging and because we need to know the relative\n         * position in case they start dragging again. This corresponds to `element.style.transform`.\n         */\n        this._passiveTransform = { x: 0, y: 0 };\n        /**\n         * CSS `transform` that is applied to the element while it's being dragged.\n         */\n        this._activeTransform = { x: 0, y: 0 };\n        /**\n         * Emits when the item is being moved.\n         */\n        this._moveEvents = new Subject();\n        /**\n         * Subscription to pointer movement events.\n         */\n        this._pointerMoveSubscription = Subscription.EMPTY;\n        /**\n         * Subscription to the event that is dispatched when the user lifts their pointer.\n         */\n        this._pointerUpSubscription = Subscription.EMPTY;\n        /**\n         * Subscription to the viewport being scrolled.\n         */\n        this._scrollSubscription = Subscription.EMPTY;\n        /**\n         * Subscription to the viewport being resized.\n         */\n        this._resizeSubscription = Subscription.EMPTY;\n        /**\n         * Cached reference to the boundary element.\n         */\n        this._boundaryElement = null;\n        /**\n         * Whether the native dragging interactions have been enabled on the root element.\n         */\n        this._nativeInteractionsEnabled = true;\n        /**\n         * Elements that can be used to drag the draggable item.\n         */\n        this._handles = [];\n        /**\n         * Registered handles that are currently disabled.\n         */\n        this._disabledHandles = new Set();\n        /**\n         * Layout direction of the item.\n         */\n        this._direction = 'ltr';\n        /**\n         * Amount of milliseconds to wait after the user has put their\n         * pointer down before starting to drag the element.\n         */\n        this.dragStartDelay = 0;\n        this._disabled = false;\n        /**\n         * Emits as the drag sequence is being prepared.\n         */\n        this.beforeStarted = new Subject();\n        /**\n         * Emits when the user starts dragging the item.\n         */\n        this.started = new Subject();\n        /**\n         * Emits when the user has released a drag item, before any animations have started.\n         */\n        this.released = new Subject();\n        /**\n         * Emits when the user stops dragging an item in the container.\n         */\n        this.ended = new Subject();\n        /**\n         * Emits when the user has moved the item into a new container.\n         */\n        this.entered = new Subject();\n        /**\n         * Emits when the user removes the item its container by dragging it into another container.\n         */\n        this.exited = new Subject();\n        /**\n         * Emits when the user drops the item inside a container.\n         */\n        this.dropped = new Subject();\n        /**\n         * Emits as the user is dragging the item. Use with caution,\n         * because this event will fire for every pixel that the user has dragged.\n         */\n        this.moved = this._moveEvents.asObservable();\n        /**\n         * Handler for the `mousedown`/`touchstart` events.\n         */\n        this._pointerDown = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            this.beforeStarted.next();\n            // Delegate the event based on whether it started from a handle or the element itself.\n            if (this._handles.length) {\n                /** @type {?} */\n                const targetHandle = this._handles.find((/**\n                 * @param {?} handle\n                 * @return {?}\n                 */\n                handle => {\n                    /** @type {?} */\n                    const target = event.target;\n                    return !!target && (target === handle || handle.contains((/** @type {?} */ (target))));\n                }));\n                if (targetHandle && !this._disabledHandles.has(targetHandle) && !this.disabled) {\n                    this._initializeDragSequence(targetHandle, event);\n                }\n            }\n            else if (!this.disabled) {\n                this._initializeDragSequence(this._rootElement, event);\n            }\n        });\n        /**\n         * Handler that is invoked when the user moves their pointer after they've initiated a drag.\n         */\n        this._pointerMove = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            // Prevent the default action as early as possible in order to block\n            // native actions like dragging the selected text or images with the mouse.\n            event.preventDefault();\n            /** @type {?} */\n            const pointerPosition = this._getPointerPositionOnPage(event);\n            if (!this._hasStartedDragging) {\n                /** @type {?} */\n                const distanceX = Math.abs(pointerPosition.x - this._pickupPositionOnPage.x);\n                /** @type {?} */\n                const distanceY = Math.abs(pointerPosition.y - this._pickupPositionOnPage.y);\n                /** @type {?} */\n                const isOverThreshold = distanceX + distanceY >= this._config.dragStartThreshold;\n                // Only start dragging after the user has moved more than the minimum distance in either\n                // direction. Note that this is preferrable over doing something like `skip(minimumDistance)`\n                // in the `pointerMove` subscription, because we're not guaranteed to have one move event\n                // per pixel of movement (e.g. if the user moves their pointer quickly).\n                if (isOverThreshold) {\n                    /** @type {?} */\n                    const isDelayElapsed = Date.now() >= this._dragStartTime + this._getDragStartDelay(event);\n                    if (!isDelayElapsed) {\n                        this._endDragSequence(event);\n                        return;\n                    }\n                    // Prevent other drag sequences from starting while something in the container is still\n                    // being dragged. This can happen while we're waiting for the drop animation to finish\n                    // and can cause errors, because some elements might still be moving around.\n                    if (!this._dropContainer || !this._dropContainer.isDragging()) {\n                        this._hasStartedDragging = true;\n                        this._ngZone.run((/**\n                         * @return {?}\n                         */\n                        () => this._startDragSequence(event)));\n                    }\n                }\n                return;\n            }\n            // We only need the preview dimensions if we have a boundary element.\n            if (this._boundaryElement) {\n                // Cache the preview element rect if we haven't cached it already or if\n                // we cached it too early before the element dimensions were computed.\n                if (!this._previewRect || (!this._previewRect.width && !this._previewRect.height)) {\n                    this._previewRect = (this._preview || this._rootElement).getBoundingClientRect();\n                }\n            }\n            /** @type {?} */\n            const constrainedPointerPosition = this._getConstrainedPointerPosition(pointerPosition);\n            this._hasMoved = true;\n            this._updatePointerDirectionDelta(constrainedPointerPosition);\n            if (this._dropContainer) {\n                this._updateActiveDropContainer(constrainedPointerPosition);\n            }\n            else {\n                /** @type {?} */\n                const activeTransform = this._activeTransform;\n                activeTransform.x =\n                    constrainedPointerPosition.x - this._pickupPositionOnPage.x + this._passiveTransform.x;\n                activeTransform.y =\n                    constrainedPointerPosition.y - this._pickupPositionOnPage.y + this._passiveTransform.y;\n                this._applyRootElementTransform(activeTransform.x, activeTransform.y);\n                // Apply transform as attribute if dragging and svg element to work for IE\n                if (typeof SVGElement !== 'undefined' && this._rootElement instanceof SVGElement) {\n                    /** @type {?} */\n                    const appliedTransform = `translate(${activeTransform.x} ${activeTransform.y})`;\n                    this._rootElement.setAttribute('transform', appliedTransform);\n                }\n            }\n            // Since this event gets fired for every pixel while dragging, we only\n            // want to fire it if the consumer opted into it. Also we have to\n            // re-enter the zone because we run all of the events on the outside.\n            if (this._moveEvents.observers.length) {\n                this._ngZone.run((/**\n                 * @return {?}\n                 */\n                () => {\n                    this._moveEvents.next({\n                        source: this,\n                        pointerPosition: constrainedPointerPosition,\n                        event,\n                        distance: this._getDragDistance(constrainedPointerPosition),\n                        delta: this._pointerDirectionDelta\n                    });\n                }));\n            }\n        });\n        /**\n         * Handler that is invoked when the user lifts their pointer up, after initiating a drag.\n         */\n        this._pointerUp = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            this._endDragSequence(event);\n        });\n        this.withRootElement(element);\n        this._parentPositions = new ParentPositionTracker(_document, _viewportRuler);\n        _dragDropRegistry.registerDragItem(this);\n    }\n    /**\n     * Whether starting to drag this element is disabled.\n     * @return {?}\n     */\n    get disabled() {\n        return this._disabled || !!(this._dropContainer && this._dropContainer.disabled);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        /** @type {?} */\n        const newValue = coerceBooleanProperty(value);\n        if (newValue !== this._disabled) {\n            this._disabled = newValue;\n            this._toggleNativeDragInteractions();\n        }\n    }\n    /**\n     * Returns the element that is being used as a placeholder\n     * while the current element is being dragged.\n     * @return {?}\n     */\n    getPlaceholderElement() {\n        return this._placeholder;\n    }\n    /**\n     * Returns the root draggable element.\n     * @return {?}\n     */\n    getRootElement() {\n        return this._rootElement;\n    }\n    /**\n     * Gets the currently-visible element that represents the drag item.\n     * While dragging this is the placeholder, otherwise it's the root element.\n     * @return {?}\n     */\n    getVisibleElement() {\n        return this.isDragging() ? this.getPlaceholderElement() : this.getRootElement();\n    }\n    /**\n     * Registers the handles that can be used to drag the element.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} handles\n     * @return {THIS}\n     */\n    withHandles(handles) {\n        (/** @type {?} */ (this))._handles = handles.map((/**\n         * @param {?} handle\n         * @return {?}\n         */\n        handle => coerceElement(handle)));\n        (/** @type {?} */ (this))._handles.forEach((/**\n         * @param {?} handle\n         * @return {?}\n         */\n        handle => toggleNativeDragInteractions(handle, false)));\n        (/** @type {?} */ (this))._toggleNativeDragInteractions();\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Registers the template that should be used for the drag preview.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} template Template that from which to stamp out the preview.\n     * @return {THIS}\n     */\n    withPreviewTemplate(template) {\n        (/** @type {?} */ (this))._previewTemplate = template;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Registers the template that should be used for the drag placeholder.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} template Template that from which to stamp out the placeholder.\n     * @return {THIS}\n     */\n    withPlaceholderTemplate(template) {\n        (/** @type {?} */ (this))._placeholderTemplate = template;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets an alternate drag root element. The root element is the element that will be moved as\n     * the user is dragging. Passing an alternate root element is useful when trying to enable\n     * dragging on an element that you might not have access to.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} rootElement\n     * @return {THIS}\n     */\n    withRootElement(rootElement) {\n        /** @type {?} */\n        const element = coerceElement(rootElement);\n        if (element !== (/** @type {?} */ (this))._rootElement) {\n            if ((/** @type {?} */ (this))._rootElement) {\n                (/** @type {?} */ (this))._removeRootElementListeners((/** @type {?} */ (this))._rootElement);\n            }\n            (/** @type {?} */ (this))._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                element.addEventListener('mousedown', (/** @type {?} */ (this))._pointerDown, activeEventListenerOptions);\n                element.addEventListener('touchstart', (/** @type {?} */ (this))._pointerDown, passiveEventListenerOptions);\n            }));\n            (/** @type {?} */ (this))._initialTransform = undefined;\n            (/** @type {?} */ (this))._rootElement = element;\n        }\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Element to which the draggable's position will be constrained.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} boundaryElement\n     * @return {THIS}\n     */\n    withBoundaryElement(boundaryElement) {\n        (/** @type {?} */ (this))._boundaryElement = boundaryElement ? coerceElement(boundaryElement) : null;\n        (/** @type {?} */ (this))._resizeSubscription.unsubscribe();\n        if (boundaryElement) {\n            (/** @type {?} */ (this))._resizeSubscription = (/** @type {?} */ (this))._viewportRuler\n                .change(10)\n                .subscribe((/**\n             * @return {?}\n             */\n            () => (/** @type {?} */ (this))._containInsideBoundaryOnResize()));\n        }\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Removes the dragging functionality from the DOM element.\n     * @return {?}\n     */\n    dispose() {\n        this._removeRootElementListeners(this._rootElement);\n        // Do this check before removing from the registry since it'll\n        // stop being considered as dragged once it is removed.\n        if (this.isDragging()) {\n            // Since we move out the element to the end of the body while it's being\n            // dragged, we have to make sure that it's removed if it gets destroyed.\n            removeNode(this._rootElement);\n        }\n        removeNode(this._anchor);\n        this._destroyPreview();\n        this._destroyPlaceholder();\n        this._dragDropRegistry.removeDragItem(this);\n        this._removeSubscriptions();\n        this.beforeStarted.complete();\n        this.started.complete();\n        this.released.complete();\n        this.ended.complete();\n        this.entered.complete();\n        this.exited.complete();\n        this.dropped.complete();\n        this._moveEvents.complete();\n        this._handles = [];\n        this._disabledHandles.clear();\n        this._dropContainer = undefined;\n        this._resizeSubscription.unsubscribe();\n        this._parentPositions.clear();\n        this._boundaryElement = this._rootElement = this._placeholderTemplate =\n            this._previewTemplate = this._anchor = (/** @type {?} */ (null));\n    }\n    /**\n     * Checks whether the element is currently being dragged.\n     * @return {?}\n     */\n    isDragging() {\n        return this._hasStartedDragging && this._dragDropRegistry.isDragging(this);\n    }\n    /**\n     * Resets a standalone drag item to its initial position.\n     * @return {?}\n     */\n    reset() {\n        this._rootElement.style.transform = this._initialTransform || '';\n        this._activeTransform = { x: 0, y: 0 };\n        this._passiveTransform = { x: 0, y: 0 };\n    }\n    /**\n     * Sets a handle as disabled. While a handle is disabled, it'll capture and interrupt dragging.\n     * @param {?} handle Handle element that should be disabled.\n     * @return {?}\n     */\n    disableHandle(handle) {\n        if (this._handles.indexOf(handle) > -1) {\n            this._disabledHandles.add(handle);\n        }\n    }\n    /**\n     * Enables a handle, if it has been disabled.\n     * @param {?} handle Handle element to be enabled.\n     * @return {?}\n     */\n    enableHandle(handle) {\n        this._disabledHandles.delete(handle);\n    }\n    /**\n     * Sets the layout direction of the draggable item.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} direction\n     * @return {THIS}\n     */\n    withDirection(direction) {\n        (/** @type {?} */ (this))._direction = direction;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the container that the item is part of.\n     * @param {?} container\n     * @return {?}\n     */\n    _withDropContainer(container) {\n        this._dropContainer = container;\n    }\n    /**\n     * Gets the current position in pixels the draggable outside of a drop container.\n     * @return {?}\n     */\n    getFreeDragPosition() {\n        /** @type {?} */\n        const position = this.isDragging() ? this._activeTransform : this._passiveTransform;\n        return { x: position.x, y: position.y };\n    }\n    /**\n     * Sets the current position in pixels the draggable outside of a drop container.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} value New position to be set.\n     * @return {THIS}\n     */\n    setFreeDragPosition(value) {\n        (/** @type {?} */ (this))._activeTransform = { x: 0, y: 0 };\n        (/** @type {?} */ (this))._passiveTransform.x = value.x;\n        (/** @type {?} */ (this))._passiveTransform.y = value.y;\n        if (!(/** @type {?} */ (this))._dropContainer) {\n            (/** @type {?} */ (this))._applyRootElementTransform(value.x, value.y);\n        }\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Updates the item's sort order based on the last-known pointer position.\n     * @return {?}\n     */\n    _sortFromLastPointerPosition() {\n        /** @type {?} */\n        const position = this._pointerPositionAtLastDirectionChange;\n        if (position && this._dropContainer) {\n            this._updateActiveDropContainer(this._getConstrainedPointerPosition(position));\n        }\n    }\n    /**\n     * Unsubscribes from the global subscriptions.\n     * @private\n     * @return {?}\n     */\n    _removeSubscriptions() {\n        this._pointerMoveSubscription.unsubscribe();\n        this._pointerUpSubscription.unsubscribe();\n        this._scrollSubscription.unsubscribe();\n    }\n    /**\n     * Destroys the preview element and its ViewRef.\n     * @private\n     * @return {?}\n     */\n    _destroyPreview() {\n        if (this._preview) {\n            removeNode(this._preview);\n        }\n        if (this._previewRef) {\n            this._previewRef.destroy();\n        }\n        this._preview = this._previewRef = (/** @type {?} */ (null));\n    }\n    /**\n     * Destroys the placeholder element and its ViewRef.\n     * @private\n     * @return {?}\n     */\n    _destroyPlaceholder() {\n        if (this._placeholder) {\n            removeNode(this._placeholder);\n        }\n        if (this._placeholderRef) {\n            this._placeholderRef.destroy();\n        }\n        this._placeholder = this._placeholderRef = (/** @type {?} */ (null));\n    }\n    /**\n     * Clears subscriptions and stops the dragging sequence.\n     * @private\n     * @param {?} event Browser event object that ended the sequence.\n     * @return {?}\n     */\n    _endDragSequence(event) {\n        // Note that here we use `isDragging` from the service, rather than from `this`.\n        // The difference is that the one from the service reflects whether a dragging sequence\n        // has been initiated, whereas the one on `this` includes whether the user has passed\n        // the minimum dragging threshold.\n        if (!this._dragDropRegistry.isDragging(this)) {\n            return;\n        }\n        this._removeSubscriptions();\n        this._dragDropRegistry.stopDragging(this);\n        this._toggleNativeDragInteractions();\n        if (this._handles) {\n            this._rootElement.style.webkitTapHighlightColor = this._rootElementTapHighlight;\n        }\n        if (!this._hasStartedDragging) {\n            return;\n        }\n        this.released.next({ source: this });\n        if (this._dropContainer) {\n            // Stop scrolling immediately, instead of waiting for the animation to finish.\n            this._dropContainer._stopScrolling();\n            this._animatePreviewToPlaceholder().then((/**\n             * @return {?}\n             */\n            () => {\n                this._cleanupDragArtifacts(event);\n                this._cleanupCachedDimensions();\n                this._dragDropRegistry.stopDragging(this);\n            }));\n        }\n        else {\n            // Convert the active transform into a passive one. This means that next time\n            // the user starts dragging the item, its position will be calculated relatively\n            // to the new passive transform.\n            this._passiveTransform.x = this._activeTransform.x;\n            this._passiveTransform.y = this._activeTransform.y;\n            this._ngZone.run((/**\n             * @return {?}\n             */\n            () => {\n                this.ended.next({\n                    source: this,\n                    distance: this._getDragDistance(this._getPointerPositionOnPage(event))\n                });\n            }));\n            this._cleanupCachedDimensions();\n            this._dragDropRegistry.stopDragging(this);\n        }\n    }\n    /**\n     * Starts the dragging sequence.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _startDragSequence(event) {\n        // Emit the event on the item before the one on the container.\n        this.started.next({ source: this });\n        if (isTouchEvent(event)) {\n            this._lastTouchEventTime = Date.now();\n        }\n        this._toggleNativeDragInteractions();\n        /** @type {?} */\n        const dropContainer = this._dropContainer;\n        if (dropContainer) {\n            /** @type {?} */\n            const element = this._rootElement;\n            /** @type {?} */\n            const parent = (/** @type {?} */ (element.parentNode));\n            /** @type {?} */\n            const preview = this._preview = this._createPreviewElement();\n            /** @type {?} */\n            const placeholder = this._placeholder = this._createPlaceholderElement();\n            /** @type {?} */\n            const anchor = this._anchor = this._anchor || this._document.createComment('');\n            // Insert an anchor node so that we can restore the element's position in the DOM.\n            parent.insertBefore(anchor, element);\n            // We move the element out at the end of the body and we make it hidden, because keeping it in\n            // place will throw off the consumer's `:last-child` selectors. We can't remove the element\n            // from the DOM completely, because iOS will stop firing all subsequent events in the chain.\n            element.style.display = 'none';\n            this._document.body.appendChild(parent.replaceChild(placeholder, element));\n            getPreviewInsertionPoint(this._document).appendChild(preview);\n            dropContainer.start();\n            this._initialContainer = dropContainer;\n            this._initialIndex = dropContainer.getItemIndex(this);\n        }\n        else {\n            this._initialContainer = this._initialIndex = (/** @type {?} */ (undefined));\n        }\n        // Important to run after we've called `start` on the parent container\n        // so that it has had time to resolve its scrollable parents.\n        this._parentPositions.cache(dropContainer ? dropContainer.getScrollableParents() : []);\n    }\n    /**\n     * Sets up the different variables and subscriptions\n     * that will be necessary for the dragging sequence.\n     * @private\n     * @param {?} referenceElement Element that started the drag sequence.\n     * @param {?} event Browser event object that started the sequence.\n     * @return {?}\n     */\n    _initializeDragSequence(referenceElement, event) {\n        // Always stop propagation for the event that initializes\n        // the dragging sequence, in order to prevent it from potentially\n        // starting another sequence for a draggable parent somewhere up the DOM tree.\n        event.stopPropagation();\n        /** @type {?} */\n        const isDragging = this.isDragging();\n        /** @type {?} */\n        const isTouchSequence = isTouchEvent(event);\n        /** @type {?} */\n        const isAuxiliaryMouseButton = !isTouchSequence && ((/** @type {?} */ (event))).button !== 0;\n        /** @type {?} */\n        const rootElement = this._rootElement;\n        /** @type {?} */\n        const isSyntheticEvent = !isTouchSequence && this._lastTouchEventTime &&\n            this._lastTouchEventTime + MOUSE_EVENT_IGNORE_TIME > Date.now();\n        // If the event started from an element with the native HTML drag&drop, it'll interfere\n        // with our own dragging (e.g. `img` tags do it by default). Prevent the default action\n        // to stop it from happening. Note that preventing on `dragstart` also seems to work, but\n        // it's flaky and it fails if the user drags it away quickly. Also note that we only want\n        // to do this for `mousedown` since doing the same for `touchstart` will stop any `click`\n        // events from firing on touch devices.\n        if (event.target && ((/** @type {?} */ (event.target))).draggable && event.type === 'mousedown') {\n            event.preventDefault();\n        }\n        // Abort if the user is already dragging or is using a mouse button other than the primary one.\n        if (isDragging || isAuxiliaryMouseButton || isSyntheticEvent) {\n            return;\n        }\n        // If we've got handles, we need to disable the tap highlight on the entire root element,\n        // otherwise iOS will still add it, even though all the drag interactions on the handle\n        // are disabled.\n        if (this._handles.length) {\n            this._rootElementTapHighlight = rootElement.style.webkitTapHighlightColor;\n            rootElement.style.webkitTapHighlightColor = 'transparent';\n        }\n        this._hasStartedDragging = this._hasMoved = false;\n        // Avoid multiple subscriptions and memory leaks when multi touch\n        // (isDragging check above isn't enough because of possible temporal and/or dimensional delays)\n        this._removeSubscriptions();\n        this._pointerMoveSubscription = this._dragDropRegistry.pointerMove.subscribe(this._pointerMove);\n        this._pointerUpSubscription = this._dragDropRegistry.pointerUp.subscribe(this._pointerUp);\n        this._scrollSubscription = this._dragDropRegistry.scroll.subscribe((/**\n         * @param {?} scrollEvent\n         * @return {?}\n         */\n        scrollEvent => {\n            this._updateOnScroll(scrollEvent);\n        }));\n        if (this._boundaryElement) {\n            this._boundaryRect = getMutableClientRect(this._boundaryElement);\n        }\n        // If we have a custom preview we can't know ahead of time how large it'll be so we position\n        // it next to the cursor. The exception is when the consumer has opted into making the preview\n        // the same size as the root element, in which case we do know the size.\n        /** @type {?} */\n        const previewTemplate = this._previewTemplate;\n        this._pickupPositionInElement = previewTemplate && previewTemplate.template &&\n            !previewTemplate.matchSize ? { x: 0, y: 0 } :\n            this._getPointerPositionInElement(referenceElement, event);\n        /** @type {?} */\n        const pointerPosition = this._pickupPositionOnPage = this._getPointerPositionOnPage(event);\n        this._pointerDirectionDelta = { x: 0, y: 0 };\n        this._pointerPositionAtLastDirectionChange = { x: pointerPosition.x, y: pointerPosition.y };\n        this._dragStartTime = Date.now();\n        this._dragDropRegistry.startDragging(this, event);\n    }\n    /**\n     * Cleans up the DOM artifacts that were added to facilitate the element being dragged.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _cleanupDragArtifacts(event) {\n        // Restore the element's visibility and insert it at its old position in the DOM.\n        // It's important that we maintain the position, because moving the element around in the DOM\n        // can throw off `NgFor` which does smart diffing and re-creates elements only when necessary,\n        // while moving the existing elements in all other cases.\n        this._rootElement.style.display = '';\n        (/** @type {?} */ (this._anchor.parentNode)).replaceChild(this._rootElement, this._anchor);\n        this._destroyPreview();\n        this._destroyPlaceholder();\n        this._boundaryRect = this._previewRect = undefined;\n        // Re-enter the NgZone since we bound `document` events on the outside.\n        this._ngZone.run((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const container = (/** @type {?} */ (this._dropContainer));\n            /** @type {?} */\n            const currentIndex = container.getItemIndex(this);\n            /** @type {?} */\n            const pointerPosition = this._getPointerPositionOnPage(event);\n            /** @type {?} */\n            const distance = this._getDragDistance(this._getPointerPositionOnPage(event));\n            /** @type {?} */\n            const isPointerOverContainer = container._isOverContainer(pointerPosition.x, pointerPosition.y);\n            this.ended.next({ source: this, distance });\n            this.dropped.next({\n                item: this,\n                currentIndex,\n                previousIndex: this._initialIndex,\n                container: container,\n                previousContainer: this._initialContainer,\n                isPointerOverContainer,\n                distance\n            });\n            container.drop(this, currentIndex, this._initialContainer, isPointerOverContainer, distance, this._initialIndex);\n            this._dropContainer = this._initialContainer;\n        }));\n    }\n    /**\n     * Updates the item's position in its drop container, or moves it\n     * into a new one, depending on its current drag position.\n     * @private\n     * @param {?} __0\n     * @return {?}\n     */\n    _updateActiveDropContainer({ x, y }) {\n        // Drop container that draggable has been moved into.\n        /** @type {?} */\n        let newContainer = this._initialContainer._getSiblingContainerFromPosition(this, x, y);\n        // If we couldn't find a new container to move the item into, and the item has left its\n        // initial container, check whether the it's over the initial container. This handles the\n        // case where two containers are connected one way and the user tries to undo dragging an\n        // item into a new container.\n        if (!newContainer && this._dropContainer !== this._initialContainer &&\n            this._initialContainer._isOverContainer(x, y)) {\n            newContainer = this._initialContainer;\n        }\n        if (newContainer && newContainer !== this._dropContainer) {\n            this._ngZone.run((/**\n             * @return {?}\n             */\n            () => {\n                // Notify the old container that the item has left.\n                this.exited.next({ item: this, container: (/** @type {?} */ (this._dropContainer)) });\n                (/** @type {?} */ (this._dropContainer)).exit(this);\n                // Notify the new container that the item has entered.\n                this._dropContainer = (/** @type {?} */ (newContainer));\n                this._dropContainer.enter(this, x, y, newContainer === this._initialContainer &&\n                    // If we're re-entering the initial container and sorting is disabled,\n                    // put item the into its starting index to begin with.\n                    newContainer.sortingDisabled ? this._initialIndex : undefined);\n                this.entered.next({\n                    item: this,\n                    container: (/** @type {?} */ (newContainer)),\n                    currentIndex: (/** @type {?} */ (newContainer)).getItemIndex(this)\n                });\n            }));\n        }\n        (/** @type {?} */ (this._dropContainer))._startScrollingIfNecessary(x, y);\n        (/** @type {?} */ (this._dropContainer))._sortItem(this, x, y, this._pointerDirectionDelta);\n        this._preview.style.transform =\n            getTransform(x - this._pickupPositionInElement.x, y - this._pickupPositionInElement.y);\n    }\n    /**\n     * Creates the element that will be rendered next to the user's pointer\n     * and will be used as a preview of the element that is being dragged.\n     * @private\n     * @return {?}\n     */\n    _createPreviewElement() {\n        /** @type {?} */\n        const previewConfig = this._previewTemplate;\n        /** @type {?} */\n        const previewClass = this.previewClass;\n        /** @type {?} */\n        const previewTemplate = previewConfig ? previewConfig.template : null;\n        /** @type {?} */\n        let preview;\n        if (previewTemplate && previewConfig) {\n            // Measure the element before we've inserted the preview\n            // since the insertion could throw off the measurement.\n            /** @type {?} */\n            const rootRect = previewConfig.matchSize ? this._rootElement.getBoundingClientRect() : null;\n            /** @type {?} */\n            const viewRef = previewConfig.viewContainer.createEmbeddedView(previewTemplate, previewConfig.context);\n            viewRef.detectChanges();\n            preview = getRootNode(viewRef, this._document);\n            this._previewRef = viewRef;\n            if (previewConfig.matchSize) {\n                matchElementSize(preview, (/** @type {?} */ (rootRect)));\n            }\n            else {\n                preview.style.transform =\n                    getTransform(this._pickupPositionOnPage.x, this._pickupPositionOnPage.y);\n            }\n        }\n        else {\n            /** @type {?} */\n            const element = this._rootElement;\n            preview = deepCloneNode(element);\n            matchElementSize(preview, element.getBoundingClientRect());\n        }\n        extendStyles(preview.style, {\n            // It's important that we disable the pointer events on the preview, because\n            // it can throw off the `document.elementFromPoint` calls in the `CdkDropList`.\n            pointerEvents: 'none',\n            // We have to reset the margin, because it can throw off positioning relative to the viewport.\n            margin: '0',\n            position: 'fixed',\n            top: '0',\n            left: '0',\n            zIndex: `${this._config.zIndex || 1000}`\n        });\n        toggleNativeDragInteractions(preview, false);\n        preview.classList.add('cdk-drag-preview');\n        preview.setAttribute('dir', this._direction);\n        if (previewClass) {\n            if (Array.isArray(previewClass)) {\n                previewClass.forEach((/**\n                 * @param {?} className\n                 * @return {?}\n                 */\n                className => preview.classList.add(className)));\n            }\n            else {\n                preview.classList.add(previewClass);\n            }\n        }\n        return preview;\n    }\n    /**\n     * Animates the preview element from its current position to the location of the drop placeholder.\n     * @private\n     * @return {?} Promise that resolves when the animation completes.\n     */\n    _animatePreviewToPlaceholder() {\n        // If the user hasn't moved yet, the transitionend event won't fire.\n        if (!this._hasMoved) {\n            return Promise.resolve();\n        }\n        /** @type {?} */\n        const placeholderRect = this._placeholder.getBoundingClientRect();\n        // Apply the class that adds a transition to the preview.\n        this._preview.classList.add('cdk-drag-animating');\n        // Move the preview to the placeholder position.\n        this._preview.style.transform = getTransform(placeholderRect.left, placeholderRect.top);\n        // If the element doesn't have a `transition`, the `transitionend` event won't fire. Since\n        // we need to trigger a style recalculation in order for the `cdk-drag-animating` class to\n        // apply its style, we take advantage of the available info to figure out whether we need to\n        // bind the event in the first place.\n        /** @type {?} */\n        const duration = getTransformTransitionDurationInMs(this._preview);\n        if (duration === 0) {\n            return Promise.resolve();\n        }\n        return this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            return new Promise((/**\n             * @param {?} resolve\n             * @return {?}\n             */\n            resolve => {\n                /** @type {?} */\n                const handler = (/** @type {?} */ (((/**\n                 * @param {?} event\n                 * @return {?}\n                 */\n                (event) => {\n                    if (!event || (event.target === this._preview && event.propertyName === 'transform')) {\n                        this._preview.removeEventListener('transitionend', handler);\n                        resolve();\n                        clearTimeout(timeout);\n                    }\n                }))));\n                // If a transition is short enough, the browser might not fire the `transitionend` event.\n                // Since we know how long it's supposed to take, add a timeout with a 50% buffer that'll\n                // fire if the transition hasn't completed when it was supposed to.\n                /** @type {?} */\n                const timeout = setTimeout((/** @type {?} */ (handler)), duration * 1.5);\n                this._preview.addEventListener('transitionend', handler);\n            }));\n        }));\n    }\n    /**\n     * Creates an element that will be shown instead of the current element while dragging.\n     * @private\n     * @return {?}\n     */\n    _createPlaceholderElement() {\n        /** @type {?} */\n        const placeholderConfig = this._placeholderTemplate;\n        /** @type {?} */\n        const placeholderTemplate = placeholderConfig ? placeholderConfig.template : null;\n        /** @type {?} */\n        let placeholder;\n        if (placeholderTemplate) {\n            this._placeholderRef = (/** @type {?} */ (placeholderConfig)).viewContainer.createEmbeddedView(placeholderTemplate, (/** @type {?} */ (placeholderConfig)).context);\n            this._placeholderRef.detectChanges();\n            placeholder = getRootNode(this._placeholderRef, this._document);\n        }\n        else {\n            placeholder = deepCloneNode(this._rootElement);\n        }\n        placeholder.classList.add('cdk-drag-placeholder');\n        return placeholder;\n    }\n    /**\n     * Figures out the coordinates at which an element was picked up.\n     * @private\n     * @param {?} referenceElement Element that initiated the dragging.\n     * @param {?} event Event that initiated the dragging.\n     * @return {?}\n     */\n    _getPointerPositionInElement(referenceElement, event) {\n        /** @type {?} */\n        const elementRect = this._rootElement.getBoundingClientRect();\n        /** @type {?} */\n        const handleElement = referenceElement === this._rootElement ? null : referenceElement;\n        /** @type {?} */\n        const referenceRect = handleElement ? handleElement.getBoundingClientRect() : elementRect;\n        /** @type {?} */\n        const point = isTouchEvent(event) ? event.targetTouches[0] : event;\n        /** @type {?} */\n        const scrollPosition = this._getViewportScrollPosition();\n        /** @type {?} */\n        const x = point.pageX - referenceRect.left - scrollPosition.left;\n        /** @type {?} */\n        const y = point.pageY - referenceRect.top - scrollPosition.top;\n        return {\n            x: referenceRect.left - elementRect.left + x,\n            y: referenceRect.top - elementRect.top + y\n        };\n    }\n    /**\n     * Determines the point of the page that was touched by the user.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _getPointerPositionOnPage(event) {\n        // `touches` will be empty for start/end events so we have to fall back to `changedTouches`.\n        /** @type {?} */\n        const point = isTouchEvent(event) ? (event.touches[0] || event.changedTouches[0]) : event;\n        /** @type {?} */\n        const scrollPosition = this._getViewportScrollPosition();\n        return {\n            x: point.pageX - scrollPosition.left,\n            y: point.pageY - scrollPosition.top\n        };\n    }\n    /**\n     * Gets the pointer position on the page, accounting for any position constraints.\n     * @private\n     * @param {?} point\n     * @return {?}\n     */\n    _getConstrainedPointerPosition(point) {\n        /** @type {?} */\n        const constrainedPoint = this.constrainPosition ? this.constrainPosition(point, this) : point;\n        /** @type {?} */\n        const dropContainerLock = this._dropContainer ? this._dropContainer.lockAxis : null;\n        if (this.lockAxis === 'x' || dropContainerLock === 'x') {\n            constrainedPoint.y = this._pickupPositionOnPage.y;\n        }\n        else if (this.lockAxis === 'y' || dropContainerLock === 'y') {\n            constrainedPoint.x = this._pickupPositionOnPage.x;\n        }\n        if (this._boundaryRect) {\n            const { x: pickupX, y: pickupY } = this._pickupPositionInElement;\n            /** @type {?} */\n            const boundaryRect = this._boundaryRect;\n            /** @type {?} */\n            const previewRect = (/** @type {?} */ (this._previewRect));\n            /** @type {?} */\n            const minY = boundaryRect.top + pickupY;\n            /** @type {?} */\n            const maxY = boundaryRect.bottom - (previewRect.height - pickupY);\n            /** @type {?} */\n            const minX = boundaryRect.left + pickupX;\n            /** @type {?} */\n            const maxX = boundaryRect.right - (previewRect.width - pickupX);\n            constrainedPoint.x = clamp(constrainedPoint.x, minX, maxX);\n            constrainedPoint.y = clamp(constrainedPoint.y, minY, maxY);\n        }\n        return constrainedPoint;\n    }\n    /**\n     * Updates the current drag delta, based on the user's current pointer position on the page.\n     * @private\n     * @param {?} pointerPositionOnPage\n     * @return {?}\n     */\n    _updatePointerDirectionDelta(pointerPositionOnPage) {\n        const { x, y } = pointerPositionOnPage;\n        /** @type {?} */\n        const delta = this._pointerDirectionDelta;\n        /** @type {?} */\n        const positionSinceLastChange = this._pointerPositionAtLastDirectionChange;\n        // Amount of pixels the user has dragged since the last time the direction changed.\n        /** @type {?} */\n        const changeX = Math.abs(x - positionSinceLastChange.x);\n        /** @type {?} */\n        const changeY = Math.abs(y - positionSinceLastChange.y);\n        // Because we handle pointer events on a per-pixel basis, we don't want the delta\n        // to change for every pixel, otherwise anything that depends on it can look erratic.\n        // To make the delta more consistent, we track how much the user has moved since the last\n        // delta change and we only update it after it has reached a certain threshold.\n        if (changeX > this._config.pointerDirectionChangeThreshold) {\n            delta.x = x > positionSinceLastChange.x ? 1 : -1;\n            positionSinceLastChange.x = x;\n        }\n        if (changeY > this._config.pointerDirectionChangeThreshold) {\n            delta.y = y > positionSinceLastChange.y ? 1 : -1;\n            positionSinceLastChange.y = y;\n        }\n        return delta;\n    }\n    /**\n     * Toggles the native drag interactions, based on how many handles are registered.\n     * @private\n     * @return {?}\n     */\n    _toggleNativeDragInteractions() {\n        if (!this._rootElement || !this._handles) {\n            return;\n        }\n        /** @type {?} */\n        const shouldEnable = this._handles.length > 0 || !this.isDragging();\n        if (shouldEnable !== this._nativeInteractionsEnabled) {\n            this._nativeInteractionsEnabled = shouldEnable;\n            toggleNativeDragInteractions(this._rootElement, shouldEnable);\n        }\n    }\n    /**\n     * Removes the manually-added event listeners from the root element.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _removeRootElementListeners(element) {\n        element.removeEventListener('mousedown', this._pointerDown, activeEventListenerOptions);\n        element.removeEventListener('touchstart', this._pointerDown, passiveEventListenerOptions);\n    }\n    /**\n     * Applies a `transform` to the root element, taking into account any existing transforms on it.\n     * @private\n     * @param {?} x New transform value along the X axis.\n     * @param {?} y New transform value along the Y axis.\n     * @return {?}\n     */\n    _applyRootElementTransform(x, y) {\n        /** @type {?} */\n        const transform = getTransform(x, y);\n        // Cache the previous transform amount only after the first drag sequence, because\n        // we don't want our own transforms to stack on top of each other.\n        if (this._initialTransform == null) {\n            this._initialTransform = this._rootElement.style.transform || '';\n        }\n        // Preserve the previous `transform` value, if there was one. Note that we apply our own\n        // transform before the user's, because things like rotation can affect which direction\n        // the element will be translated towards.\n        this._rootElement.style.transform = this._initialTransform ?\n            transform + ' ' + this._initialTransform : transform;\n    }\n    /**\n     * Gets the distance that the user has dragged during the current drag sequence.\n     * @private\n     * @param {?} currentPosition Current position of the user's pointer.\n     * @return {?}\n     */\n    _getDragDistance(currentPosition) {\n        /** @type {?} */\n        const pickupPosition = this._pickupPositionOnPage;\n        if (pickupPosition) {\n            return { x: currentPosition.x - pickupPosition.x, y: currentPosition.y - pickupPosition.y };\n        }\n        return { x: 0, y: 0 };\n    }\n    /**\n     * Cleans up any cached element dimensions that we don't need after dragging has stopped.\n     * @private\n     * @return {?}\n     */\n    _cleanupCachedDimensions() {\n        this._boundaryRect = this._previewRect = undefined;\n        this._parentPositions.clear();\n    }\n    /**\n     * Checks whether the element is still inside its boundary after the viewport has been resized.\n     * If not, the position is adjusted so that the element fits again.\n     * @private\n     * @return {?}\n     */\n    _containInsideBoundaryOnResize() {\n        let { x, y } = this._passiveTransform;\n        if ((x === 0 && y === 0) || this.isDragging() || !this._boundaryElement) {\n            return;\n        }\n        /** @type {?} */\n        const boundaryRect = this._boundaryElement.getBoundingClientRect();\n        /** @type {?} */\n        const elementRect = this._rootElement.getBoundingClientRect();\n        // It's possible that the element got hidden away after dragging (e.g. by switching to a\n        // different tab). Don't do anything in this case so we don't clear the user's position.\n        if ((boundaryRect.width === 0 && boundaryRect.height === 0) ||\n            (elementRect.width === 0 && elementRect.height === 0)) {\n            return;\n        }\n        /** @type {?} */\n        const leftOverflow = boundaryRect.left - elementRect.left;\n        /** @type {?} */\n        const rightOverflow = elementRect.right - boundaryRect.right;\n        /** @type {?} */\n        const topOverflow = boundaryRect.top - elementRect.top;\n        /** @type {?} */\n        const bottomOverflow = elementRect.bottom - boundaryRect.bottom;\n        // If the element has become wider than the boundary, we can't\n        // do much to make it fit so we just anchor it to the left.\n        if (boundaryRect.width > elementRect.width) {\n            if (leftOverflow > 0) {\n                x += leftOverflow;\n            }\n            if (rightOverflow > 0) {\n                x -= rightOverflow;\n            }\n        }\n        else {\n            x = 0;\n        }\n        // If the element has become taller than the boundary, we can't\n        // do much to make it fit so we just anchor it to the top.\n        if (boundaryRect.height > elementRect.height) {\n            if (topOverflow > 0) {\n                y += topOverflow;\n            }\n            if (bottomOverflow > 0) {\n                y -= bottomOverflow;\n            }\n        }\n        else {\n            y = 0;\n        }\n        if (x !== this._passiveTransform.x || y !== this._passiveTransform.y) {\n            this.setFreeDragPosition({ y, x });\n        }\n    }\n    /**\n     * Gets the drag start delay, based on the event type.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _getDragStartDelay(event) {\n        /** @type {?} */\n        const value = this.dragStartDelay;\n        if (typeof value === 'number') {\n            return value;\n        }\n        else if (isTouchEvent(event)) {\n            return value.touch;\n        }\n        return value ? value.mouse : 0;\n    }\n    /**\n     * Updates the internal state of the draggable element when scrolling has occurred.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _updateOnScroll(event) {\n        /** @type {?} */\n        const scrollDifference = this._parentPositions.handleScroll(event);\n        // ClientRect dimensions are based on the page's scroll position so\n        // we have to update the cached boundary ClientRect if the user has scrolled.\n        if (this._boundaryRect && scrollDifference) {\n            adjustClientRect(this._boundaryRect, scrollDifference.top, scrollDifference.left);\n        }\n    }\n    /**\n     * Gets the scroll position of the viewport.\n     * @private\n     * @return {?}\n     */\n    _getViewportScrollPosition() {\n        /** @type {?} */\n        const cachedPosition = this._parentPositions.positions.get(this._document);\n        return cachedPosition ? cachedPosition.scrollPosition :\n            this._viewportRuler.getViewportScrollPosition();\n    }\n}\nif (false) {\n    /**\n     * Element displayed next to the user's pointer while the element is dragged.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._preview;\n    /**\n     * Reference to the view of the preview element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._previewRef;\n    /**\n     * Reference to the view of the placeholder element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._placeholderRef;\n    /**\n     * Element that is rendered instead of the draggable item while it is being sorted.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._placeholder;\n    /**\n     * Coordinates within the element at which the user picked up the element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pickupPositionInElement;\n    /**\n     * Coordinates on the page at which the user picked up the element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pickupPositionOnPage;\n    /**\n     * Anchor node used to save the place in the DOM where the element was\n     * picked up so that it can be restored at the end of the drag sequence.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._anchor;\n    /**\n     * CSS `transform` applied to the element when it isn't being dragged. We need a\n     * passive transform in order for the dragged element to retain its new position\n     * after the user has stopped dragging and because we need to know the relative\n     * position in case they start dragging again. This corresponds to `element.style.transform`.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._passiveTransform;\n    /**\n     * CSS `transform` that is applied to the element while it's being dragged.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._activeTransform;\n    /**\n     * Inline `transform` value that the element had before the first dragging sequence.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._initialTransform;\n    /**\n     * Whether the dragging sequence has been started. Doesn't\n     * necessarily mean that the element has been moved.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._hasStartedDragging;\n    /**\n     * Whether the element has moved since the user started dragging it.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._hasMoved;\n    /**\n     * Drop container in which the DragRef resided when dragging began.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._initialContainer;\n    /**\n     * Index at which the item started in its initial container.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._initialIndex;\n    /**\n     * Cached positions of scrollable parent elements.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._parentPositions;\n    /**\n     * Emits when the item is being moved.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._moveEvents;\n    /**\n     * Keeps track of the direction in which the user is dragging along each axis.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pointerDirectionDelta;\n    /**\n     * Pointer position at which the last change in the delta occurred.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pointerPositionAtLastDirectionChange;\n    /**\n     * Root DOM node of the drag instance. This is the element that will\n     * be moved around as the user is dragging.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._rootElement;\n    /**\n     * Inline style value of `-webkit-tap-highlight-color` at the time the\n     * dragging was started. Used to restore the value once we're done dragging.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._rootElementTapHighlight;\n    /**\n     * Subscription to pointer movement events.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pointerMoveSubscription;\n    /**\n     * Subscription to the event that is dispatched when the user lifts their pointer.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pointerUpSubscription;\n    /**\n     * Subscription to the viewport being scrolled.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._scrollSubscription;\n    /**\n     * Subscription to the viewport being resized.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._resizeSubscription;\n    /**\n     * Time at which the last touch event occurred. Used to avoid firing the same\n     * events multiple times on touch devices where the browser will fire a fake\n     * mouse event for each touch event, after a certain time.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._lastTouchEventTime;\n    /**\n     * Time at which the last dragging sequence was started.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._dragStartTime;\n    /**\n     * Cached reference to the boundary element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._boundaryElement;\n    /**\n     * Whether the native dragging interactions have been enabled on the root element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._nativeInteractionsEnabled;\n    /**\n     * Cached dimensions of the preview element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._previewRect;\n    /**\n     * Cached dimensions of the boundary element.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._boundaryRect;\n    /**\n     * Element that will be used as a template to create the draggable item's preview.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._previewTemplate;\n    /**\n     * Template for placeholder element rendered to show where a draggable would be dropped.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._placeholderTemplate;\n    /**\n     * Elements that can be used to drag the draggable item.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._handles;\n    /**\n     * Registered handles that are currently disabled.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._disabledHandles;\n    /**\n     * Droppable container that the draggable is a part of.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._dropContainer;\n    /**\n     * Layout direction of the item.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._direction;\n    /**\n     * Axis along which dragging is locked.\n     * @type {?}\n     */\n    DragRef.prototype.lockAxis;\n    /**\n     * Amount of milliseconds to wait after the user has put their\n     * pointer down before starting to drag the element.\n     * @type {?}\n     */\n    DragRef.prototype.dragStartDelay;\n    /**\n     * Class to be added to the preview element.\n     * @type {?}\n     */\n    DragRef.prototype.previewClass;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._disabled;\n    /**\n     * Emits as the drag sequence is being prepared.\n     * @type {?}\n     */\n    DragRef.prototype.beforeStarted;\n    /**\n     * Emits when the user starts dragging the item.\n     * @type {?}\n     */\n    DragRef.prototype.started;\n    /**\n     * Emits when the user has released a drag item, before any animations have started.\n     * @type {?}\n     */\n    DragRef.prototype.released;\n    /**\n     * Emits when the user stops dragging an item in the container.\n     * @type {?}\n     */\n    DragRef.prototype.ended;\n    /**\n     * Emits when the user has moved the item into a new container.\n     * @type {?}\n     */\n    DragRef.prototype.entered;\n    /**\n     * Emits when the user removes the item its container by dragging it into another container.\n     * @type {?}\n     */\n    DragRef.prototype.exited;\n    /**\n     * Emits when the user drops the item inside a container.\n     * @type {?}\n     */\n    DragRef.prototype.dropped;\n    /**\n     * Emits as the user is dragging the item. Use with caution,\n     * because this event will fire for every pixel that the user has dragged.\n     * @type {?}\n     */\n    DragRef.prototype.moved;\n    /**\n     * Arbitrary data that can be attached to the drag item.\n     * @type {?}\n     */\n    DragRef.prototype.data;\n    /**\n     * Function that can be used to customize the logic of how the position of the drag item\n     * is limited while it's being dragged. Gets called with a point containing the current position\n     * of the user's pointer on the page and should return a point describing where the item should\n     * be rendered.\n     * @type {?}\n     */\n    DragRef.prototype.constrainPosition;\n    /**\n     * Handler for the `mousedown`/`touchstart` events.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pointerDown;\n    /**\n     * Handler that is invoked when the user moves their pointer after they've initiated a drag.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pointerMove;\n    /**\n     * Handler that is invoked when the user lifts their pointer up, after initiating a drag.\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._pointerUp;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._config;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragRef.prototype._dragDropRegistry;\n}\n/**\n * Gets a 3d `transform` that can be applied to an element.\n * @param {?} x Desired position of the element along the X axis.\n * @param {?} y Desired position of the element along the Y axis.\n * @return {?}\n */\nfunction getTransform(x, y) {\n    // Round the transforms since some browsers will\n    // blur the elements for sub-pixel transforms.\n    return `translate3d(${Math.round(x)}px, ${Math.round(y)}px, 0)`;\n}\n/**\n * Creates a deep clone of an element.\n * @param {?} node\n * @return {?}\n */\nfunction deepCloneNode(node) {\n    /** @type {?} */\n    const clone = (/** @type {?} */ (node.cloneNode(true)));\n    /** @type {?} */\n    const descendantsWithId = clone.querySelectorAll('[id]');\n    /** @type {?} */\n    const descendantCanvases = node.querySelectorAll('canvas');\n    // Remove the `id` to avoid having multiple elements with the same id on the page.\n    clone.removeAttribute('id');\n    for (let i = 0; i < descendantsWithId.length; i++) {\n        descendantsWithId[i].removeAttribute('id');\n    }\n    // `cloneNode` won't transfer the content of `canvas` elements so we have to do it ourselves.\n    // We match up the cloned canvas to their sources using their index in the DOM.\n    if (descendantCanvases.length) {\n        /** @type {?} */\n        const cloneCanvases = clone.querySelectorAll('canvas');\n        for (let i = 0; i < descendantCanvases.length; i++) {\n            /** @type {?} */\n            const correspondingCloneContext = cloneCanvases[i].getContext('2d');\n            if (correspondingCloneContext) {\n                correspondingCloneContext.drawImage(descendantCanvases[i], 0, 0);\n            }\n        }\n    }\n    return clone;\n}\n/**\n * Clamps a value between a minimum and a maximum.\n * @param {?} value\n * @param {?} min\n * @param {?} max\n * @return {?}\n */\nfunction clamp(value, min, max) {\n    return Math.max(min, Math.min(max, value));\n}\n/**\n * Helper to remove a node from the DOM and to do all the necessary null checks.\n * @param {?} node Node to be removed.\n * @return {?}\n */\nfunction removeNode(node) {\n    if (node && node.parentNode) {\n        node.parentNode.removeChild(node);\n    }\n}\n/**\n * Determines whether an event is a touch event.\n * @param {?} event\n * @return {?}\n */\nfunction isTouchEvent(event) {\n    // This function is called for every pixel that the user has dragged so we need it to be\n    // as fast as possible. Since we only bind mouse events and touch events, we can assume\n    // that if the event's name starts with `t`, it's a touch event.\n    return event.type[0] === 't';\n}\n/**\n * Gets the element into which the drag preview should be inserted.\n * @param {?} documentRef\n * @return {?}\n */\nfunction getPreviewInsertionPoint(documentRef) {\n    // We can't use the body if the user is in fullscreen mode,\n    // because the preview will render under the fullscreen element.\n    // TODO(crisbeto): dedupe this with the `FullscreenOverlayContainer` eventually.\n    return documentRef.fullscreenElement ||\n        documentRef.webkitFullscreenElement ||\n        documentRef.mozFullScreenElement ||\n        documentRef.msFullscreenElement ||\n        documentRef.body;\n}\n/**\n * Gets the root HTML element of an embedded view.\n * If the root is not an HTML element it gets wrapped in one.\n * @param {?} viewRef\n * @param {?} _document\n * @return {?}\n */\nfunction getRootNode(viewRef, _document) {\n    /** @type {?} */\n    const rootNodes = viewRef.rootNodes;\n    if (rootNodes.length === 1 && rootNodes[0].nodeType === _document.ELEMENT_NODE) {\n        return (/** @type {?} */ (rootNodes[0]));\n    }\n    /** @type {?} */\n    const wrapper = _document.createElement('div');\n    rootNodes.forEach((/**\n     * @param {?} node\n     * @return {?}\n     */\n    node => wrapper.appendChild(node)));\n    return wrapper;\n}\n/**\n * Matches the target element's size to the source's size.\n * @param {?} target Element that needs to be resized.\n * @param {?} sourceRect Dimensions of the source element.\n * @return {?}\n */\nfunction matchElementSize(target, sourceRect) {\n    target.style.width = `${sourceRect.width}px`;\n    target.style.height = `${sourceRect.height}px`;\n    target.style.transform = getTransform(sourceRect.left, sourceRect.top);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-utils.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Moves an item one index in an array to another.\n * @template T\n * @param {?} array Array in which to move the item.\n * @param {?} fromIndex Starting index of the item.\n * @param {?} toIndex Index to which the item should be moved.\n * @return {?}\n */\nfunction moveItemInArray(array, fromIndex, toIndex) {\n    /** @type {?} */\n    const from = clamp$1(fromIndex, array.length - 1);\n    /** @type {?} */\n    const to = clamp$1(toIndex, array.length - 1);\n    if (from === to) {\n        return;\n    }\n    /** @type {?} */\n    const target = array[from];\n    /** @type {?} */\n    const delta = to < from ? -1 : 1;\n    for (let i = from; i !== to; i += delta) {\n        array[i] = array[i + delta];\n    }\n    array[to] = target;\n}\n/**\n * Moves an item from one array to another.\n * @template T\n * @param {?} currentArray Array from which to transfer the item.\n * @param {?} targetArray Array into which to put the item.\n * @param {?} currentIndex Index of the item in its current array.\n * @param {?} targetIndex Index at which to insert the item.\n * @return {?}\n */\nfunction transferArrayItem(currentArray, targetArray, currentIndex, targetIndex) {\n    /** @type {?} */\n    const from = clamp$1(currentIndex, currentArray.length - 1);\n    /** @type {?} */\n    const to = clamp$1(targetIndex, targetArray.length);\n    if (currentArray.length) {\n        targetArray.splice(to, 0, currentArray.splice(from, 1)[0]);\n    }\n}\n/**\n * Copies an item from one array to another, leaving it in its\n * original position in current array.\n * @template T\n * @param {?} currentArray Array from which to copy the item.\n * @param {?} targetArray Array into which is copy the item.\n * @param {?} currentIndex Index of the item in its current array.\n * @param {?} targetIndex Index at which to insert the item.\n *\n * @return {?}\n */\nfunction copyArrayItem(currentArray, targetArray, currentIndex, targetIndex) {\n    /** @type {?} */\n    const to = clamp$1(targetIndex, targetArray.length);\n    if (currentArray.length) {\n        targetArray.splice(to, 0, currentArray[currentIndex]);\n    }\n}\n/**\n * Clamps a number between zero and a maximum.\n * @param {?} value\n * @param {?} max\n * @return {?}\n */\nfunction clamp$1(value, max) {\n    return Math.max(0, Math.min(max, value));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drop-list-ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Proximity, as a ratio to width/height, at which a\n * dragged item will affect the drop container.\n * @type {?}\n */\nconst DROP_PROXIMITY_THRESHOLD = 0.05;\n/**\n * Proximity, as a ratio to width/height at which to start auto-scrolling the drop list or the\n * viewport. The value comes from trying it out manually until it feels right.\n * @type {?}\n */\nconst SCROLL_PROXIMITY_THRESHOLD = 0.05;\n/**\n * Number of pixels to scroll for each frame when auto-scrolling an element.\n * The value comes from trying it out manually until it feels right.\n * @type {?}\n */\nconst AUTO_SCROLL_STEP = 2;\n/**\n * Entry in the position cache for draggable items.\n * \\@docs-private\n * @record\n */\nfunction CachedItemPosition() { }\nif (false) {\n    /**\n     * Instance of the drag item.\n     * @type {?}\n     */\n    CachedItemPosition.prototype.drag;\n    /**\n     * Dimensions of the item.\n     * @type {?}\n     */\n    CachedItemPosition.prototype.clientRect;\n    /**\n     * Amount by which the item has been moved since dragging started.\n     * @type {?}\n     */\n    CachedItemPosition.prototype.offset;\n}\n/** @enum {number} */\nconst AutoScrollVerticalDirection = {\n    NONE: 0, UP: 1, DOWN: 2,\n};\n/** @enum {number} */\nconst AutoScrollHorizontalDirection = {\n    NONE: 0, LEFT: 1, RIGHT: 2,\n};\n/**\n * Internal compile-time-only representation of a `DropListRef`.\n * Used to avoid circular import issues between the `DropListRef` and the `DragRef`.\n * \\@docs-private\n * @record\n */\nfunction DropListRefInternal() { }\n/**\n * Reference to a drop list. Used to manipulate or dispose of the container.\n * @template T\n */\nclass DropListRef {\n    /**\n     * @param {?} element\n     * @param {?} _dragDropRegistry\n     * @param {?} _document\n     * @param {?} _ngZone\n     * @param {?} _viewportRuler\n     */\n    constructor(element, _dragDropRegistry, _document, _ngZone, _viewportRuler) {\n        this._dragDropRegistry = _dragDropRegistry;\n        this._ngZone = _ngZone;\n        this._viewportRuler = _viewportRuler;\n        /**\n         * Whether starting a dragging sequence from this container is disabled.\n         */\n        this.disabled = false;\n        /**\n         * Whether sorting items within the list is disabled.\n         */\n        this.sortingDisabled = false;\n        /**\n         * Whether auto-scrolling the view when the user\n         * moves their pointer close to the edges is disabled.\n         */\n        this.autoScrollDisabled = false;\n        /**\n         * Function that is used to determine whether an item\n         * is allowed to be moved into a drop container.\n         */\n        this.enterPredicate = (/**\n         * @return {?}\n         */\n        () => true);\n        /**\n         * Emits right before dragging has started.\n         */\n        this.beforeStarted = new Subject();\n        /**\n         * Emits when the user has moved a new drag item into this container.\n         */\n        this.entered = new Subject();\n        /**\n         * Emits when the user removes an item from the container\n         * by dragging it into another container.\n         */\n        this.exited = new Subject();\n        /**\n         * Emits when the user drops an item inside the container.\n         */\n        this.dropped = new Subject();\n        /**\n         * Emits as the user is swapping items while actively dragging.\n         */\n        this.sorted = new Subject();\n        /**\n         * Whether an item in the list is being dragged.\n         */\n        this._isDragging = false;\n        /**\n         * Cache of the dimensions of all the items inside the container.\n         */\n        this._itemPositions = [];\n        /**\n         * Keeps track of the item that was last swapped with the dragged item, as\n         * well as what direction the pointer was moving in when the swap occured.\n         */\n        this._previousSwap = { drag: (/** @type {?} */ (null)), delta: 0 };\n        /**\n         * Drop lists that are connected to the current one.\n         */\n        this._siblings = [];\n        /**\n         * Direction in which the list is oriented.\n         */\n        this._orientation = 'vertical';\n        /**\n         * Connected siblings that currently have a dragged item.\n         */\n        this._activeSiblings = new Set();\n        /**\n         * Layout direction of the drop list.\n         */\n        this._direction = 'ltr';\n        /**\n         * Subscription to the window being scrolled.\n         */\n        this._viewportScrollSubscription = Subscription.EMPTY;\n        /**\n         * Vertical direction in which the list is currently scrolling.\n         */\n        this._verticalScrollDirection = 0 /* NONE */;\n        /**\n         * Horizontal direction in which the list is currently scrolling.\n         */\n        this._horizontalScrollDirection = 0 /* NONE */;\n        /**\n         * Used to signal to the current auto-scroll sequence when to stop.\n         */\n        this._stopScrollTimers = new Subject();\n        /**\n         * Shadow root of the current element. Necessary for `elementFromPoint` to resolve correctly.\n         */\n        this._cachedShadowRoot = null;\n        /**\n         * Starts the interval that'll auto-scroll the element.\n         */\n        this._startScrollInterval = (/**\n         * @return {?}\n         */\n        () => {\n            this._stopScrolling();\n            interval(0, animationFrameScheduler)\n                .pipe(takeUntil(this._stopScrollTimers))\n                .subscribe((/**\n             * @return {?}\n             */\n            () => {\n                /** @type {?} */\n                const node = this._scrollNode;\n                if (this._verticalScrollDirection === 1 /* UP */) {\n                    incrementVerticalScroll(node, -AUTO_SCROLL_STEP);\n                }\n                else if (this._verticalScrollDirection === 2 /* DOWN */) {\n                    incrementVerticalScroll(node, AUTO_SCROLL_STEP);\n                }\n                if (this._horizontalScrollDirection === 1 /* LEFT */) {\n                    incrementHorizontalScroll(node, -AUTO_SCROLL_STEP);\n                }\n                else if (this._horizontalScrollDirection === 2 /* RIGHT */) {\n                    incrementHorizontalScroll(node, AUTO_SCROLL_STEP);\n                }\n            }));\n        });\n        this.element = coerceElement(element);\n        this._document = _document;\n        this.withScrollableParents([this.element]);\n        _dragDropRegistry.registerDropContainer(this);\n        this._parentPositions = new ParentPositionTracker(_document, _viewportRuler);\n    }\n    /**\n     * Removes the drop list functionality from the DOM element.\n     * @return {?}\n     */\n    dispose() {\n        this._stopScrolling();\n        this._stopScrollTimers.complete();\n        this._viewportScrollSubscription.unsubscribe();\n        this.beforeStarted.complete();\n        this.entered.complete();\n        this.exited.complete();\n        this.dropped.complete();\n        this.sorted.complete();\n        this._activeSiblings.clear();\n        this._scrollNode = (/** @type {?} */ (null));\n        this._parentPositions.clear();\n        this._dragDropRegistry.removeDropContainer(this);\n    }\n    /**\n     * Whether an item from this list is currently being dragged.\n     * @return {?}\n     */\n    isDragging() {\n        return this._isDragging;\n    }\n    /**\n     * Starts dragging an item.\n     * @return {?}\n     */\n    start() {\n        /** @type {?} */\n        const styles = coerceElement(this.element).style;\n        this.beforeStarted.next();\n        this._isDragging = true;\n        // We need to disable scroll snapping while the user is dragging, because it breaks automatic\n        // scrolling. The browser seems to round the value based on the snapping points which means\n        // that we can't increment/decrement the scroll position.\n        this._initialScrollSnap = styles.msScrollSnapType || ((/** @type {?} */ (styles))).scrollSnapType || '';\n        ((/** @type {?} */ (styles))).scrollSnapType = styles.msScrollSnapType = 'none';\n        this._cacheItems();\n        this._siblings.forEach((/**\n         * @param {?} sibling\n         * @return {?}\n         */\n        sibling => sibling._startReceiving(this)));\n        this._viewportScrollSubscription.unsubscribe();\n        this._listenToScrollEvents();\n    }\n    /**\n     * Emits an event to indicate that the user moved an item into the container.\n     * @param {?} item Item that was moved into the container.\n     * @param {?} pointerX Position of the item along the X axis.\n     * @param {?} pointerY Position of the item along the Y axis.\n     * @param {?=} index Index at which the item entered. If omitted, the container will try to figure it\n     *   out automatically.\n     * @return {?}\n     */\n    enter(item, pointerX, pointerY, index) {\n        this.start();\n        // If sorting is disabled, we want the item to return to its starting\n        // position if the user is returning it to its initial container.\n        /** @type {?} */\n        let newIndex;\n        if (index == null) {\n            newIndex = this.sortingDisabled ? this._draggables.indexOf(item) : -1;\n            if (newIndex === -1) {\n                // We use the coordinates of where the item entered the drop\n                // zone to figure out at which index it should be inserted.\n                newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY);\n            }\n        }\n        else {\n            newIndex = index;\n        }\n        /** @type {?} */\n        const activeDraggables = this._activeDraggables;\n        /** @type {?} */\n        const currentIndex = activeDraggables.indexOf(item);\n        /** @type {?} */\n        const placeholder = item.getPlaceholderElement();\n        /** @type {?} */\n        let newPositionReference = activeDraggables[newIndex];\n        // If the item at the new position is the same as the item that is being dragged,\n        // it means that we're trying to restore the item to its initial position. In this\n        // case we should use the next item from the list as the reference.\n        if (newPositionReference === item) {\n            newPositionReference = activeDraggables[newIndex + 1];\n        }\n        // Since the item may be in the `activeDraggables` already (e.g. if the user dragged it\n        // into another container and back again), we have to ensure that it isn't duplicated.\n        if (currentIndex > -1) {\n            activeDraggables.splice(currentIndex, 1);\n        }\n        // Don't use items that are being dragged as a reference, because\n        // their element has been moved down to the bottom of the body.\n        if (newPositionReference && !this._dragDropRegistry.isDragging(newPositionReference)) {\n            /** @type {?} */\n            const element = newPositionReference.getRootElement();\n            (/** @type {?} */ (element.parentElement)).insertBefore(placeholder, element);\n            activeDraggables.splice(newIndex, 0, item);\n        }\n        else {\n            /** @type {?} */\n            const element = coerceElement(this.element);\n            if (this._shouldEnterAsFirstChild(pointerX, pointerY)) {\n                element.insertBefore(placeholder, activeDraggables[0].getRootElement());\n                activeDraggables.unshift(item);\n            }\n            else {\n                element.appendChild(placeholder);\n                activeDraggables.push(item);\n            }\n        }\n        // The transform needs to be cleared so it doesn't throw off the measurements.\n        placeholder.style.transform = '';\n        // Note that the positions were already cached when we called `start` above,\n        // but we need to refresh them since the amount of items has changed and also parent rects.\n        this._cacheItemPositions();\n        this._cacheParentPositions();\n        this.entered.next({ item, container: this, currentIndex: this.getItemIndex(item) });\n    }\n    /**\n     * Removes an item from the container after it was dragged into another container by the user.\n     * @param {?} item Item that was dragged out.\n     * @return {?}\n     */\n    exit(item) {\n        this._reset();\n        this.exited.next({ item, container: this });\n    }\n    /**\n     * Drops an item into this container.\n     * \\@breaking-change 11.0.0 `previousIndex` parameter to become required.\n     * @param {?} item Item being dropped into the container.\n     * @param {?} currentIndex Index at which the item should be inserted.\n     * @param {?} previousContainer Container from which the item got dragged in.\n     * @param {?} isPointerOverContainer Whether the user's pointer was over the\n     *    container when the item was dropped.\n     * @param {?} distance Distance the user has dragged since the start of the dragging sequence.\n     * @param {?=} previousIndex Index of the item when dragging started.\n     *\n     * @return {?}\n     */\n    drop(item, currentIndex, previousContainer, isPointerOverContainer, distance, previousIndex) {\n        this._reset();\n        // @breaking-change 11.0.0 Remove this fallback logic once `previousIndex` is a required param.\n        if (previousIndex == null) {\n            previousIndex = previousContainer.getItemIndex(item);\n        }\n        this.dropped.next({ item,\n            currentIndex,\n            previousIndex,\n            container: this,\n            previousContainer,\n            isPointerOverContainer,\n            distance\n        });\n    }\n    /**\n     * Sets the draggable items that are a part of this list.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} items Items that are a part of this list.\n     * @return {THIS}\n     */\n    withItems(items) {\n        /** @type {?} */\n        const previousItems = (/** @type {?} */ (this))._draggables;\n        (/** @type {?} */ (this))._draggables = items;\n        items.forEach((/**\n         * @param {?} item\n         * @return {?}\n         */\n        item => item._withDropContainer((/** @type {?} */ (this)))));\n        if ((/** @type {?} */ (this)).isDragging()) {\n            /** @type {?} */\n            const draggedItems = previousItems.filter((/**\n             * @param {?} item\n             * @return {?}\n             */\n            item => item.isDragging()));\n            // If all of the items being dragged were removed\n            // from the list, abort the current drag sequence.\n            if (draggedItems.every((/**\n             * @param {?} item\n             * @return {?}\n             */\n            item => items.indexOf(item) === -1))) {\n                (/** @type {?} */ (this))._reset();\n            }\n            else {\n                (/** @type {?} */ (this))._cacheItems();\n            }\n        }\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the layout direction of the drop list.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} direction\n     * @return {THIS}\n     */\n    withDirection(direction) {\n        (/** @type {?} */ (this))._direction = direction;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the containers that are connected to this one. When two or more containers are\n     * connected, the user will be allowed to transfer items between them.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} connectedTo Other containers that the current containers should be connected to.\n     * @return {THIS}\n     */\n    connectedTo(connectedTo) {\n        (/** @type {?} */ (this))._siblings = connectedTo.slice();\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets the orientation of the container.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} orientation New orientation for the container.\n     * @return {THIS}\n     */\n    withOrientation(orientation) {\n        (/** @type {?} */ (this))._orientation = orientation;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Sets which parent elements are can be scrolled while the user is dragging.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} elements Elements that can be scrolled.\n     * @return {THIS}\n     */\n    withScrollableParents(elements) {\n        /** @type {?} */\n        const element = coerceElement((/** @type {?} */ (this)).element);\n        // We always allow the current element to be scrollable\n        // so we need to ensure that it's in the array.\n        (/** @type {?} */ (this))._scrollableElements =\n            elements.indexOf(element) === -1 ? [element, ...elements] : elements.slice();\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Gets the scrollable parents that are registered with this drop container.\n     * @return {?}\n     */\n    getScrollableParents() {\n        return this._scrollableElements;\n    }\n    /**\n     * Figures out the index of an item in the container.\n     * @param {?} item Item whose index should be determined.\n     * @return {?}\n     */\n    getItemIndex(item) {\n        if (!this._isDragging) {\n            return this._draggables.indexOf(item);\n        }\n        // Items are sorted always by top/left in the cache, however they flow differently in RTL.\n        // The rest of the logic still stands no matter what orientation we're in, however\n        // we need to invert the array when determining the index.\n        /** @type {?} */\n        const items = this._orientation === 'horizontal' && this._direction === 'rtl' ?\n            this._itemPositions.slice().reverse() : this._itemPositions;\n        return findIndex(items, (/**\n         * @param {?} currentItem\n         * @return {?}\n         */\n        currentItem => currentItem.drag === item));\n    }\n    /**\n     * Whether the list is able to receive the item that\n     * is currently being dragged inside a connected drop list.\n     * @return {?}\n     */\n    isReceiving() {\n        return this._activeSiblings.size > 0;\n    }\n    /**\n     * Sorts an item inside the container based on its position.\n     * @param {?} item Item to be sorted.\n     * @param {?} pointerX Position of the item along the X axis.\n     * @param {?} pointerY Position of the item along the Y axis.\n     * @param {?} pointerDelta Direction in which the pointer is moving along each axis.\n     * @return {?}\n     */\n    _sortItem(item, pointerX, pointerY, pointerDelta) {\n        // Don't sort the item if sorting is disabled or it's out of range.\n        if (this.sortingDisabled ||\n            !isPointerNearClientRect(this._clientRect, DROP_PROXIMITY_THRESHOLD, pointerX, pointerY)) {\n            return;\n        }\n        /** @type {?} */\n        const siblings = this._itemPositions;\n        /** @type {?} */\n        const newIndex = this._getItemIndexFromPointerPosition(item, pointerX, pointerY, pointerDelta);\n        if (newIndex === -1 && siblings.length > 0) {\n            return;\n        }\n        /** @type {?} */\n        const isHorizontal = this._orientation === 'horizontal';\n        /** @type {?} */\n        const currentIndex = findIndex(siblings, (/**\n         * @param {?} currentItem\n         * @return {?}\n         */\n        currentItem => currentItem.drag === item));\n        /** @type {?} */\n        const siblingAtNewPosition = siblings[newIndex];\n        /** @type {?} */\n        const currentPosition = siblings[currentIndex].clientRect;\n        /** @type {?} */\n        const newPosition = siblingAtNewPosition.clientRect;\n        /** @type {?} */\n        const delta = currentIndex > newIndex ? 1 : -1;\n        this._previousSwap.drag = siblingAtNewPosition.drag;\n        this._previousSwap.delta = isHorizontal ? pointerDelta.x : pointerDelta.y;\n        // How many pixels the item's placeholder should be offset.\n        /** @type {?} */\n        const itemOffset = this._getItemOffsetPx(currentPosition, newPosition, delta);\n        // How many pixels all the other items should be offset.\n        /** @type {?} */\n        const siblingOffset = this._getSiblingOffsetPx(currentIndex, siblings, delta);\n        // Save the previous order of the items before moving the item to its new index.\n        // We use this to check whether an item has been moved as a result of the sorting.\n        /** @type {?} */\n        const oldOrder = siblings.slice();\n        // Shuffle the array in place.\n        moveItemInArray(siblings, currentIndex, newIndex);\n        this.sorted.next({\n            previousIndex: currentIndex,\n            currentIndex: newIndex,\n            container: this,\n            item\n        });\n        siblings.forEach((/**\n         * @param {?} sibling\n         * @param {?} index\n         * @return {?}\n         */\n        (sibling, index) => {\n            // Don't do anything if the position hasn't changed.\n            if (oldOrder[index] === sibling) {\n                return;\n            }\n            /** @type {?} */\n            const isDraggedItem = sibling.drag === item;\n            /** @type {?} */\n            const offset = isDraggedItem ? itemOffset : siblingOffset;\n            /** @type {?} */\n            const elementToOffset = isDraggedItem ? item.getPlaceholderElement() :\n                sibling.drag.getRootElement();\n            // Update the offset to reflect the new position.\n            sibling.offset += offset;\n            // Since we're moving the items with a `transform`, we need to adjust their cached\n            // client rects to reflect their new position, as well as swap their positions in the cache.\n            // Note that we shouldn't use `getBoundingClientRect` here to update the cache, because the\n            // elements may be mid-animation which will give us a wrong result.\n            if (isHorizontal) {\n                // Round the transforms since some browsers will\n                // blur the elements, for sub-pixel transforms.\n                elementToOffset.style.transform = `translate3d(${Math.round(sibling.offset)}px, 0, 0)`;\n                adjustClientRect(sibling.clientRect, 0, offset);\n            }\n            else {\n                elementToOffset.style.transform = `translate3d(0, ${Math.round(sibling.offset)}px, 0)`;\n                adjustClientRect(sibling.clientRect, offset, 0);\n            }\n        }));\n    }\n    /**\n     * Checks whether the user's pointer is close to the edges of either the\n     * viewport or the drop list and starts the auto-scroll sequence.\n     * @param {?} pointerX User's pointer position along the x axis.\n     * @param {?} pointerY User's pointer position along the y axis.\n     * @return {?}\n     */\n    _startScrollingIfNecessary(pointerX, pointerY) {\n        if (this.autoScrollDisabled) {\n            return;\n        }\n        /** @type {?} */\n        let scrollNode;\n        /** @type {?} */\n        let verticalScrollDirection = 0 /* NONE */;\n        /** @type {?} */\n        let horizontalScrollDirection = 0 /* NONE */;\n        // Check whether we should start scrolling any of the parent containers.\n        this._parentPositions.positions.forEach((/**\n         * @param {?} position\n         * @param {?} element\n         * @return {?}\n         */\n        (position, element) => {\n            // We have special handling for the `document` below. Also this would be\n            // nicer with a  for...of loop, but it requires changing a compiler flag.\n            if (element === this._document || !position.clientRect || scrollNode) {\n                return;\n            }\n            if (isPointerNearClientRect(position.clientRect, DROP_PROXIMITY_THRESHOLD, pointerX, pointerY)) {\n                [verticalScrollDirection, horizontalScrollDirection] = getElementScrollDirections((/** @type {?} */ (element)), position.clientRect, pointerX, pointerY);\n                if (verticalScrollDirection || horizontalScrollDirection) {\n                    scrollNode = (/** @type {?} */ (element));\n                }\n            }\n        }));\n        // Otherwise check if we can start scrolling the viewport.\n        if (!verticalScrollDirection && !horizontalScrollDirection) {\n            const { width, height } = this._viewportRuler.getViewportSize();\n            /** @type {?} */\n            const clientRect = { width, height, top: 0, right: width, bottom: height, left: 0 };\n            verticalScrollDirection = getVerticalScrollDirection(clientRect, pointerY);\n            horizontalScrollDirection = getHorizontalScrollDirection(clientRect, pointerX);\n            scrollNode = window;\n        }\n        if (scrollNode && (verticalScrollDirection !== this._verticalScrollDirection ||\n            horizontalScrollDirection !== this._horizontalScrollDirection ||\n            scrollNode !== this._scrollNode)) {\n            this._verticalScrollDirection = verticalScrollDirection;\n            this._horizontalScrollDirection = horizontalScrollDirection;\n            this._scrollNode = scrollNode;\n            if ((verticalScrollDirection || horizontalScrollDirection) && scrollNode) {\n                this._ngZone.runOutsideAngular(this._startScrollInterval);\n            }\n            else {\n                this._stopScrolling();\n            }\n        }\n    }\n    /**\n     * Stops any currently-running auto-scroll sequences.\n     * @return {?}\n     */\n    _stopScrolling() {\n        this._stopScrollTimers.next();\n    }\n    /**\n     * Caches the positions of the configured scrollable parents.\n     * @private\n     * @return {?}\n     */\n    _cacheParentPositions() {\n        /** @type {?} */\n        const element = coerceElement(this.element);\n        this._parentPositions.cache(this._scrollableElements);\n        // The list element is always in the `scrollableElements`\n        // so we can take advantage of the cached `ClientRect`.\n        this._clientRect = (/** @type {?} */ ((/** @type {?} */ (this._parentPositions.positions.get(element))).clientRect));\n    }\n    /**\n     * Refreshes the position cache of the items and sibling containers.\n     * @private\n     * @return {?}\n     */\n    _cacheItemPositions() {\n        /** @type {?} */\n        const isHorizontal = this._orientation === 'horizontal';\n        this._itemPositions = this._activeDraggables.map((/**\n         * @param {?} drag\n         * @return {?}\n         */\n        drag => {\n            /** @type {?} */\n            const elementToMeasure = drag.getVisibleElement();\n            return { drag, offset: 0, clientRect: getMutableClientRect(elementToMeasure) };\n        })).sort((/**\n         * @param {?} a\n         * @param {?} b\n         * @return {?}\n         */\n        (a, b) => {\n            return isHorizontal ? a.clientRect.left - b.clientRect.left :\n                a.clientRect.top - b.clientRect.top;\n        }));\n    }\n    /**\n     * Resets the container to its initial state.\n     * @private\n     * @return {?}\n     */\n    _reset() {\n        this._isDragging = false;\n        /** @type {?} */\n        const styles = coerceElement(this.element).style;\n        ((/** @type {?} */ (styles))).scrollSnapType = styles.msScrollSnapType = this._initialScrollSnap;\n        // TODO(crisbeto): may have to wait for the animations to finish.\n        this._activeDraggables.forEach((/**\n         * @param {?} item\n         * @return {?}\n         */\n        item => {\n            /** @type {?} */\n            const rootElement = item.getRootElement();\n            if (rootElement) {\n                rootElement.style.transform = '';\n            }\n        }));\n        this._siblings.forEach((/**\n         * @param {?} sibling\n         * @return {?}\n         */\n        sibling => sibling._stopReceiving(this)));\n        this._activeDraggables = [];\n        this._itemPositions = [];\n        this._previousSwap.drag = null;\n        this._previousSwap.delta = 0;\n        this._stopScrolling();\n        this._viewportScrollSubscription.unsubscribe();\n        this._parentPositions.clear();\n    }\n    /**\n     * Gets the offset in pixels by which the items that aren't being dragged should be moved.\n     * @private\n     * @param {?} currentIndex Index of the item currently being dragged.\n     * @param {?} siblings All of the items in the list.\n     * @param {?} delta Direction in which the user is moving.\n     * @return {?}\n     */\n    _getSiblingOffsetPx(currentIndex, siblings, delta) {\n        /** @type {?} */\n        const isHorizontal = this._orientation === 'horizontal';\n        /** @type {?} */\n        const currentPosition = siblings[currentIndex].clientRect;\n        /** @type {?} */\n        const immediateSibling = siblings[currentIndex + delta * -1];\n        /** @type {?} */\n        let siblingOffset = currentPosition[isHorizontal ? 'width' : 'height'] * delta;\n        if (immediateSibling) {\n            /** @type {?} */\n            const start = isHorizontal ? 'left' : 'top';\n            /** @type {?} */\n            const end = isHorizontal ? 'right' : 'bottom';\n            // Get the spacing between the start of the current item and the end of the one immediately\n            // after it in the direction in which the user is dragging, or vice versa. We add it to the\n            // offset in order to push the element to where it will be when it's inline and is influenced\n            // by the `margin` of its siblings.\n            if (delta === -1) {\n                siblingOffset -= immediateSibling.clientRect[start] - currentPosition[end];\n            }\n            else {\n                siblingOffset += currentPosition[start] - immediateSibling.clientRect[end];\n            }\n        }\n        return siblingOffset;\n    }\n    /**\n     * Gets the offset in pixels by which the item that is being dragged should be moved.\n     * @private\n     * @param {?} currentPosition Current position of the item.\n     * @param {?} newPosition Position of the item where the current item should be moved.\n     * @param {?} delta Direction in which the user is moving.\n     * @return {?}\n     */\n    _getItemOffsetPx(currentPosition, newPosition, delta) {\n        /** @type {?} */\n        const isHorizontal = this._orientation === 'horizontal';\n        /** @type {?} */\n        let itemOffset = isHorizontal ? newPosition.left - currentPosition.left :\n            newPosition.top - currentPosition.top;\n        // Account for differences in the item width/height.\n        if (delta === -1) {\n            itemOffset += isHorizontal ? newPosition.width - currentPosition.width :\n                newPosition.height - currentPosition.height;\n        }\n        return itemOffset;\n    }\n    /**\n     * Checks if pointer is entering in the first position\n     * @private\n     * @param {?} pointerX Position of the user's pointer along the X axis.\n     * @param {?} pointerY Position of the user's pointer along the Y axis.\n     * @return {?}\n     */\n    _shouldEnterAsFirstChild(pointerX, pointerY) {\n        if (!this._activeDraggables.length) {\n            return false;\n        }\n        /** @type {?} */\n        const itemPositions = this._itemPositions;\n        /** @type {?} */\n        const isHorizontal = this._orientation === 'horizontal';\n        // `itemPositions` are sorted by position while `activeDraggables` are sorted by child index\n        // check if container is using some sort of \"reverse\" ordering (eg: flex-direction: row-reverse)\n        /** @type {?} */\n        const reversed = itemPositions[0].drag !== this._activeDraggables[0];\n        if (reversed) {\n            /** @type {?} */\n            const lastItemRect = itemPositions[itemPositions.length - 1].clientRect;\n            return isHorizontal ? pointerX >= lastItemRect.right : pointerY >= lastItemRect.bottom;\n        }\n        else {\n            /** @type {?} */\n            const firstItemRect = itemPositions[0].clientRect;\n            return isHorizontal ? pointerX <= firstItemRect.left : pointerY <= firstItemRect.top;\n        }\n    }\n    /**\n     * Gets the index of an item in the drop container, based on the position of the user's pointer.\n     * @private\n     * @param {?} item Item that is being sorted.\n     * @param {?} pointerX Position of the user's pointer along the X axis.\n     * @param {?} pointerY Position of the user's pointer along the Y axis.\n     * @param {?=} delta Direction in which the user is moving their pointer.\n     * @return {?}\n     */\n    _getItemIndexFromPointerPosition(item, pointerX, pointerY, delta) {\n        /** @type {?} */\n        const isHorizontal = this._orientation === 'horizontal';\n        return findIndex(this._itemPositions, (/**\n         * @param {?} __0\n         * @param {?} _\n         * @param {?} array\n         * @return {?}\n         */\n        ({ drag, clientRect }, _, array) => {\n            if (drag === item) {\n                // If there's only one item left in the container, it must be\n                // the dragged item itself so we use it as a reference.\n                return array.length < 2;\n            }\n            if (delta) {\n                /** @type {?} */\n                const direction = isHorizontal ? delta.x : delta.y;\n                // If the user is still hovering over the same item as last time, and they didn't change\n                // the direction in which they're dragging, we don't consider it a direction swap.\n                if (drag === this._previousSwap.drag && direction === this._previousSwap.delta) {\n                    return false;\n                }\n            }\n            return isHorizontal ?\n                // Round these down since most browsers report client rects with\n                // sub-pixel precision, whereas the pointer coordinates are rounded to pixels.\n                pointerX >= Math.floor(clientRect.left) && pointerX < Math.floor(clientRect.right) :\n                pointerY >= Math.floor(clientRect.top) && pointerY < Math.floor(clientRect.bottom);\n        }));\n    }\n    /**\n     * Caches the current items in the list and their positions.\n     * @private\n     * @return {?}\n     */\n    _cacheItems() {\n        this._activeDraggables = this._draggables.slice();\n        this._cacheItemPositions();\n        this._cacheParentPositions();\n    }\n    /**\n     * Checks whether the user's pointer is positioned over the container.\n     * @param {?} x Pointer position along the X axis.\n     * @param {?} y Pointer position along the Y axis.\n     * @return {?}\n     */\n    _isOverContainer(x, y) {\n        return isInsideClientRect(this._clientRect, x, y);\n    }\n    /**\n     * Figures out whether an item should be moved into a sibling\n     * drop container, based on its current position.\n     * @param {?} item Drag item that is being moved.\n     * @param {?} x Position of the item along the X axis.\n     * @param {?} y Position of the item along the Y axis.\n     * @return {?}\n     */\n    _getSiblingContainerFromPosition(item, x, y) {\n        return this._siblings.find((/**\n         * @param {?} sibling\n         * @return {?}\n         */\n        sibling => sibling._canReceive(item, x, y)));\n    }\n    /**\n     * Checks whether the drop list can receive the passed-in item.\n     * @param {?} item Item that is being dragged into the list.\n     * @param {?} x Position of the item along the X axis.\n     * @param {?} y Position of the item along the Y axis.\n     * @return {?}\n     */\n    _canReceive(item, x, y) {\n        if (!isInsideClientRect(this._clientRect, x, y) || !this.enterPredicate(item, this)) {\n            return false;\n        }\n        /** @type {?} */\n        const elementFromPoint = (/** @type {?} */ (this._getShadowRoot().elementFromPoint(x, y)));\n        // If there's no element at the pointer position, then\n        // the client rect is probably scrolled out of the view.\n        if (!elementFromPoint) {\n            return false;\n        }\n        /** @type {?} */\n        const nativeElement = coerceElement(this.element);\n        // The `ClientRect`, that we're using to find the container over which the user is\n        // hovering, doesn't give us any information on whether the element has been scrolled\n        // out of the view or whether it's overlapping with other containers. This means that\n        // we could end up transferring the item into a container that's invisible or is positioned\n        // below another one. We use the result from `elementFromPoint` to get the top-most element\n        // at the pointer position and to find whether it's one of the intersecting drop containers.\n        return elementFromPoint === nativeElement || nativeElement.contains(elementFromPoint);\n    }\n    /**\n     * Called by one of the connected drop lists when a dragging sequence has started.\n     * @param {?} sibling Sibling in which dragging has started.\n     * @return {?}\n     */\n    _startReceiving(sibling) {\n        /** @type {?} */\n        const activeSiblings = this._activeSiblings;\n        if (!activeSiblings.has(sibling)) {\n            activeSiblings.add(sibling);\n            this._cacheParentPositions();\n            this._listenToScrollEvents();\n        }\n    }\n    /**\n     * Called by a connected drop list when dragging has stopped.\n     * @param {?} sibling Sibling whose dragging has stopped.\n     * @return {?}\n     */\n    _stopReceiving(sibling) {\n        this._activeSiblings.delete(sibling);\n        this._viewportScrollSubscription.unsubscribe();\n    }\n    /**\n     * Starts listening to scroll events on the viewport.\n     * Used for updating the internal state of the list.\n     * @private\n     * @return {?}\n     */\n    _listenToScrollEvents() {\n        this._viewportScrollSubscription = this._dragDropRegistry.scroll.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            if (this.isDragging()) {\n                /** @type {?} */\n                const scrollDifference = this._parentPositions.handleScroll(event);\n                if (scrollDifference) {\n                    // Since we know the amount that the user has scrolled we can shift all of the\n                    // client rectangles ourselves. This is cheaper than re-measuring everything and\n                    // we can avoid inconsistent behavior where we might be measuring the element before\n                    // its position has changed.\n                    this._itemPositions.forEach((/**\n                     * @param {?} __0\n                     * @return {?}\n                     */\n                    ({ clientRect }) => {\n                        adjustClientRect(clientRect, scrollDifference.top, scrollDifference.left);\n                    }));\n                    // We need two loops for this, because we want all of the cached\n                    // positions to be up-to-date before we re-sort the item.\n                    this._itemPositions.forEach((/**\n                     * @param {?} __0\n                     * @return {?}\n                     */\n                    ({ drag }) => {\n                        if (this._dragDropRegistry.isDragging(drag)) {\n                            // We need to re-sort the item manually, because the pointer move\n                            // events won't be dispatched while the user is scrolling.\n                            drag._sortFromLastPointerPosition();\n                        }\n                    }));\n                }\n            }\n            else if (this.isReceiving()) {\n                this._cacheParentPositions();\n            }\n        }));\n    }\n    /**\n     * Lazily resolves and returns the shadow root of the element. We do this in a function, rather\n     * than saving it in property directly on init, because we want to resolve it as late as possible\n     * in order to ensure that the element has been moved into the shadow DOM. Doing it inside the\n     * constructor might be too early if the element is inside of something like `ngFor` or `ngIf`.\n     * @private\n     * @return {?}\n     */\n    _getShadowRoot() {\n        if (!this._cachedShadowRoot) {\n            /** @type {?} */\n            const shadowRoot = (/** @type {?} */ (_getShadowRoot(coerceElement(this.element))));\n            this._cachedShadowRoot = shadowRoot || this._document;\n        }\n        return this._cachedShadowRoot;\n    }\n}\nif (false) {\n    /**\n     * Element that the drop list is attached to.\n     * @type {?}\n     */\n    DropListRef.prototype.element;\n    /**\n     * Whether starting a dragging sequence from this container is disabled.\n     * @type {?}\n     */\n    DropListRef.prototype.disabled;\n    /**\n     * Whether sorting items within the list is disabled.\n     * @type {?}\n     */\n    DropListRef.prototype.sortingDisabled;\n    /**\n     * Locks the position of the draggable elements inside the container along the specified axis.\n     * @type {?}\n     */\n    DropListRef.prototype.lockAxis;\n    /**\n     * Whether auto-scrolling the view when the user\n     * moves their pointer close to the edges is disabled.\n     * @type {?}\n     */\n    DropListRef.prototype.autoScrollDisabled;\n    /**\n     * Function that is used to determine whether an item\n     * is allowed to be moved into a drop container.\n     * @type {?}\n     */\n    DropListRef.prototype.enterPredicate;\n    /**\n     * Emits right before dragging has started.\n     * @type {?}\n     */\n    DropListRef.prototype.beforeStarted;\n    /**\n     * Emits when the user has moved a new drag item into this container.\n     * @type {?}\n     */\n    DropListRef.prototype.entered;\n    /**\n     * Emits when the user removes an item from the container\n     * by dragging it into another container.\n     * @type {?}\n     */\n    DropListRef.prototype.exited;\n    /**\n     * Emits when the user drops an item inside the container.\n     * @type {?}\n     */\n    DropListRef.prototype.dropped;\n    /**\n     * Emits as the user is swapping items while actively dragging.\n     * @type {?}\n     */\n    DropListRef.prototype.sorted;\n    /**\n     * Arbitrary data that can be attached to the drop list.\n     * @type {?}\n     */\n    DropListRef.prototype.data;\n    /**\n     * Whether an item in the list is being dragged.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._isDragging;\n    /**\n     * Cache of the dimensions of all the items inside the container.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._itemPositions;\n    /**\n     * Keeps track of the positions of any parent scrollable elements.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._parentPositions;\n    /**\n     * Cached `ClientRect` of the drop list.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._clientRect;\n    /**\n     * Draggable items that are currently active inside the container. Includes the items\n     * from `_draggables`, as well as any items that have been dragged in, but haven't\n     * been dropped yet.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._activeDraggables;\n    /**\n     * Keeps track of the item that was last swapped with the dragged item, as\n     * well as what direction the pointer was moving in when the swap occured.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._previousSwap;\n    /**\n     * Draggable items in the container.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._draggables;\n    /**\n     * Drop lists that are connected to the current one.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._siblings;\n    /**\n     * Direction in which the list is oriented.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._orientation;\n    /**\n     * Connected siblings that currently have a dragged item.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._activeSiblings;\n    /**\n     * Layout direction of the drop list.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._direction;\n    /**\n     * Subscription to the window being scrolled.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._viewportScrollSubscription;\n    /**\n     * Vertical direction in which the list is currently scrolling.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._verticalScrollDirection;\n    /**\n     * Horizontal direction in which the list is currently scrolling.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._horizontalScrollDirection;\n    /**\n     * Node that is being auto-scrolled.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._scrollNode;\n    /**\n     * Used to signal to the current auto-scroll sequence when to stop.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._stopScrollTimers;\n    /**\n     * Shadow root of the current element. Necessary for `elementFromPoint` to resolve correctly.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._cachedShadowRoot;\n    /**\n     * Reference to the document.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._document;\n    /**\n     * Elements that can be scrolled while the user is dragging.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._scrollableElements;\n    /**\n     * Initial value for the element's `scroll-snap-type` style.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._initialScrollSnap;\n    /**\n     * Starts the interval that'll auto-scroll the element.\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._startScrollInterval;\n    /**\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._dragDropRegistry;\n    /**\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    DropListRef.prototype._viewportRuler;\n}\n/**\n * Finds the index of an item that matches a predicate function. Used as an equivalent\n * of `Array.prototype.findIndex` which isn't part of the standard Google typings.\n * @template T\n * @param {?} array Array in which to look for matches.\n * @param {?} predicate Function used to determine whether an item is a match.\n * @return {?}\n */\nfunction findIndex(array, predicate) {\n    for (let i = 0; i < array.length; i++) {\n        if (predicate(array[i], i, array)) {\n            return i;\n        }\n    }\n    return -1;\n}\n/**\n * Increments the vertical scroll position of a node.\n * @param {?} node Node whose scroll position should change.\n * @param {?} amount Amount of pixels that the `node` should be scrolled.\n * @return {?}\n */\nfunction incrementVerticalScroll(node, amount) {\n    if (node === window) {\n        ((/** @type {?} */ (node))).scrollBy(0, amount);\n    }\n    else {\n        // Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.\n        ((/** @type {?} */ (node))).scrollTop += amount;\n    }\n}\n/**\n * Increments the horizontal scroll position of a node.\n * @param {?} node Node whose scroll position should change.\n * @param {?} amount Amount of pixels that the `node` should be scrolled.\n * @return {?}\n */\nfunction incrementHorizontalScroll(node, amount) {\n    if (node === window) {\n        ((/** @type {?} */ (node))).scrollBy(amount, 0);\n    }\n    else {\n        // Ideally we could use `Element.scrollBy` here as well, but IE and Edge don't support it.\n        ((/** @type {?} */ (node))).scrollLeft += amount;\n    }\n}\n/**\n * Gets whether the vertical auto-scroll direction of a node.\n * @param {?} clientRect Dimensions of the node.\n * @param {?} pointerY Position of the user's pointer along the y axis.\n * @return {?}\n */\nfunction getVerticalScrollDirection(clientRect, pointerY) {\n    const { top, bottom, height } = clientRect;\n    /** @type {?} */\n    const yThreshold = height * SCROLL_PROXIMITY_THRESHOLD;\n    if (pointerY >= top - yThreshold && pointerY <= top + yThreshold) {\n        return 1 /* UP */;\n    }\n    else if (pointerY >= bottom - yThreshold && pointerY <= bottom + yThreshold) {\n        return 2 /* DOWN */;\n    }\n    return 0 /* NONE */;\n}\n/**\n * Gets whether the horizontal auto-scroll direction of a node.\n * @param {?} clientRect Dimensions of the node.\n * @param {?} pointerX Position of the user's pointer along the x axis.\n * @return {?}\n */\nfunction getHorizontalScrollDirection(clientRect, pointerX) {\n    const { left, right, width } = clientRect;\n    /** @type {?} */\n    const xThreshold = width * SCROLL_PROXIMITY_THRESHOLD;\n    if (pointerX >= left - xThreshold && pointerX <= left + xThreshold) {\n        return 1 /* LEFT */;\n    }\n    else if (pointerX >= right - xThreshold && pointerX <= right + xThreshold) {\n        return 2 /* RIGHT */;\n    }\n    return 0 /* NONE */;\n}\n/**\n * Gets the directions in which an element node should be scrolled,\n * assuming that the user's pointer is already within it scrollable region.\n * @param {?} element Element for which we should calculate the scroll direction.\n * @param {?} clientRect Bounding client rectangle of the element.\n * @param {?} pointerX Position of the user's pointer along the x axis.\n * @param {?} pointerY Position of the user's pointer along the y axis.\n * @return {?}\n */\nfunction getElementScrollDirections(element, clientRect, pointerX, pointerY) {\n    /** @type {?} */\n    const computedVertical = getVerticalScrollDirection(clientRect, pointerY);\n    /** @type {?} */\n    const computedHorizontal = getHorizontalScrollDirection(clientRect, pointerX);\n    /** @type {?} */\n    let verticalScrollDirection = 0 /* NONE */;\n    /** @type {?} */\n    let horizontalScrollDirection = 0 /* NONE */;\n    // Note that we here we do some extra checks for whether the element is actually scrollable in\n    // a certain direction and we only assign the scroll direction if it is. We do this so that we\n    // can allow other elements to be scrolled, if the current element can't be scrolled anymore.\n    // This allows us to handle cases where the scroll regions of two scrollable elements overlap.\n    if (computedVertical) {\n        /** @type {?} */\n        const scrollTop = element.scrollTop;\n        if (computedVertical === 1 /* UP */) {\n            if (scrollTop > 0) {\n                verticalScrollDirection = 1 /* UP */;\n            }\n        }\n        else if (element.scrollHeight - scrollTop > element.clientHeight) {\n            verticalScrollDirection = 2 /* DOWN */;\n        }\n    }\n    if (computedHorizontal) {\n        /** @type {?} */\n        const scrollLeft = element.scrollLeft;\n        if (computedHorizontal === 1 /* LEFT */) {\n            if (scrollLeft > 0) {\n                horizontalScrollDirection = 1 /* LEFT */;\n            }\n        }\n        else if (element.scrollWidth - scrollLeft > element.clientWidth) {\n            horizontalScrollDirection = 2 /* RIGHT */;\n        }\n    }\n    return [verticalScrollDirection, horizontalScrollDirection];\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-drop-registry.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Event options that can be used to bind an active, capturing event.\n * @type {?}\n */\nconst activeCapturingEventOptions = normalizePassiveListenerOptions({\n    passive: false,\n    capture: true\n});\n/**\n * Service that keeps track of all the drag item and drop container\n * instances, and manages global event listeners on the `document`.\n * \\@docs-private\n * @template I, C\n */\n// Note: this class is generic, rather than referencing CdkDrag and CdkDropList directly, in order\n// to avoid circular imports. If we were to reference them here, importing the registry into the\n// classes that are registering themselves will introduce a circular import.\nclass DragDropRegistry {\n    /**\n     * @param {?} _ngZone\n     * @param {?} _document\n     */\n    constructor(_ngZone, _document) {\n        this._ngZone = _ngZone;\n        /**\n         * Registered drop container instances.\n         */\n        this._dropInstances = new Set();\n        /**\n         * Registered drag item instances.\n         */\n        this._dragInstances = new Set();\n        /**\n         * Drag item instances that are currently being dragged.\n         */\n        this._activeDragInstances = new Set();\n        /**\n         * Keeps track of the event listeners that we've bound to the `document`.\n         */\n        this._globalListeners = new Map();\n        /**\n         * Emits the `touchmove` or `mousemove` events that are dispatched\n         * while the user is dragging a drag item instance.\n         */\n        this.pointerMove = new Subject();\n        /**\n         * Emits the `touchend` or `mouseup` events that are dispatched\n         * while the user is dragging a drag item instance.\n         */\n        this.pointerUp = new Subject();\n        /**\n         * Emits when the viewport has been scrolled while the user is dragging an item.\n         */\n        this.scroll = new Subject();\n        /**\n         * Event listener that will prevent the default browser action while the user is dragging.\n         * @param event Event whose default action should be prevented.\n         */\n        this._preventDefaultWhileDragging = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            if (this._activeDragInstances.size) {\n                event.preventDefault();\n            }\n        });\n        this._document = _document;\n    }\n    /**\n     * Adds a drop container to the registry.\n     * @param {?} drop\n     * @return {?}\n     */\n    registerDropContainer(drop) {\n        if (!this._dropInstances.has(drop)) {\n            this._dropInstances.add(drop);\n        }\n    }\n    /**\n     * Adds a drag item instance to the registry.\n     * @param {?} drag\n     * @return {?}\n     */\n    registerDragItem(drag) {\n        this._dragInstances.add(drag);\n        // The `touchmove` event gets bound once, ahead of time, because WebKit\n        // won't preventDefault on a dynamically-added `touchmove` listener.\n        // See https://bugs.webkit.org/show_bug.cgi?id=184250.\n        if (this._dragInstances.size === 1) {\n            this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                // The event handler has to be explicitly active,\n                // because newer browsers make it passive by default.\n                this._document.addEventListener('touchmove', this._preventDefaultWhileDragging, activeCapturingEventOptions);\n            }));\n        }\n    }\n    /**\n     * Removes a drop container from the registry.\n     * @param {?} drop\n     * @return {?}\n     */\n    removeDropContainer(drop) {\n        this._dropInstances.delete(drop);\n    }\n    /**\n     * Removes a drag item instance from the registry.\n     * @param {?} drag\n     * @return {?}\n     */\n    removeDragItem(drag) {\n        this._dragInstances.delete(drag);\n        this.stopDragging(drag);\n        if (this._dragInstances.size === 0) {\n            this._document.removeEventListener('touchmove', this._preventDefaultWhileDragging, activeCapturingEventOptions);\n        }\n    }\n    /**\n     * Starts the dragging sequence for a drag instance.\n     * @param {?} drag Drag instance which is being dragged.\n     * @param {?} event Event that initiated the dragging.\n     * @return {?}\n     */\n    startDragging(drag, event) {\n        // Do not process the same drag twice to avoid memory leaks and redundant listeners\n        if (this._activeDragInstances.has(drag)) {\n            return;\n        }\n        this._activeDragInstances.add(drag);\n        if (this._activeDragInstances.size === 1) {\n            /** @type {?} */\n            const isTouchEvent = event.type.startsWith('touch');\n            /** @type {?} */\n            const moveEvent = isTouchEvent ? 'touchmove' : 'mousemove';\n            /** @type {?} */\n            const upEvent = isTouchEvent ? 'touchend' : 'mouseup';\n            // We explicitly bind __active__ listeners here, because newer browsers will default to\n            // passive ones for `mousemove` and `touchmove`. The events need to be active, because we\n            // use `preventDefault` to prevent the page from scrolling while the user is dragging.\n            this._globalListeners\n                .set(moveEvent, {\n                handler: (/**\n                 * @param {?} e\n                 * @return {?}\n                 */\n                (e) => this.pointerMove.next((/** @type {?} */ (e)))),\n                options: activeCapturingEventOptions\n            })\n                .set(upEvent, {\n                handler: (/**\n                 * @param {?} e\n                 * @return {?}\n                 */\n                (e) => this.pointerUp.next((/** @type {?} */ (e)))),\n                options: true\n            })\n                .set('scroll', {\n                handler: (/**\n                 * @param {?} e\n                 * @return {?}\n                 */\n                (e) => this.scroll.next(e)),\n                // Use capturing so that we pick up scroll changes in any scrollable nodes that aren't\n                // the document. See https://github.com/angular/components/issues/17144.\n                options: true\n            })\n                // Preventing the default action on `mousemove` isn't enough to disable text selection\n                // on Safari so we need to prevent the selection event as well. Alternatively this can\n                // be done by setting `user-select: none` on the `body`, however it has causes a style\n                // recalculation which can be expensive on pages with a lot of elements.\n                .set('selectstart', {\n                handler: this._preventDefaultWhileDragging,\n                options: activeCapturingEventOptions\n            });\n            this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                this._globalListeners.forEach((/**\n                 * @param {?} config\n                 * @param {?} name\n                 * @return {?}\n                 */\n                (config, name) => {\n                    this._document.addEventListener(name, config.handler, config.options);\n                }));\n            }));\n        }\n    }\n    /**\n     * Stops dragging a drag item instance.\n     * @param {?} drag\n     * @return {?}\n     */\n    stopDragging(drag) {\n        this._activeDragInstances.delete(drag);\n        if (this._activeDragInstances.size === 0) {\n            this._clearGlobalListeners();\n        }\n    }\n    /**\n     * Gets whether a drag item instance is currently being dragged.\n     * @param {?} drag\n     * @return {?}\n     */\n    isDragging(drag) {\n        return this._activeDragInstances.has(drag);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._dragInstances.forEach((/**\n         * @param {?} instance\n         * @return {?}\n         */\n        instance => this.removeDragItem(instance)));\n        this._dropInstances.forEach((/**\n         * @param {?} instance\n         * @return {?}\n         */\n        instance => this.removeDropContainer(instance)));\n        this._clearGlobalListeners();\n        this.pointerMove.complete();\n        this.pointerUp.complete();\n    }\n    /**\n     * Clears out the global event listeners from the `document`.\n     * @private\n     * @return {?}\n     */\n    _clearGlobalListeners() {\n        this._globalListeners.forEach((/**\n         * @param {?} config\n         * @param {?} name\n         * @return {?}\n         */\n        (config, name) => {\n            this._document.removeEventListener(name, config.handler, config.options);\n        }));\n        this._globalListeners.clear();\n    }\n}\nDragDropRegistry.ɵfac = function DragDropRegistry_Factory(t) { return new (t || DragDropRegistry)(ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(DOCUMENT)); };\n/** @nocollapse */\nDragDropRegistry.ctorParameters = () => [\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] }\n];\n/** @nocollapse */ DragDropRegistry.ɵprov = ɵɵdefineInjectable({ factory: function DragDropRegistry_Factory() { return new DragDropRegistry(ɵɵinject(NgZone), ɵɵinject(DOCUMENT)); }, token: DragDropRegistry, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DragDropRegistry, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DragDropRegistry.prototype._document;\n    /**\n     * Registered drop container instances.\n     * @type {?}\n     * @private\n     */\n    DragDropRegistry.prototype._dropInstances;\n    /**\n     * Registered drag item instances.\n     * @type {?}\n     * @private\n     */\n    DragDropRegistry.prototype._dragInstances;\n    /**\n     * Drag item instances that are currently being dragged.\n     * @type {?}\n     * @private\n     */\n    DragDropRegistry.prototype._activeDragInstances;\n    /**\n     * Keeps track of the event listeners that we've bound to the `document`.\n     * @type {?}\n     * @private\n     */\n    DragDropRegistry.prototype._globalListeners;\n    /**\n     * Emits the `touchmove` or `mousemove` events that are dispatched\n     * while the user is dragging a drag item instance.\n     * @type {?}\n     */\n    DragDropRegistry.prototype.pointerMove;\n    /**\n     * Emits the `touchend` or `mouseup` events that are dispatched\n     * while the user is dragging a drag item instance.\n     * @type {?}\n     */\n    DragDropRegistry.prototype.pointerUp;\n    /**\n     * Emits when the viewport has been scrolled while the user is dragging an item.\n     * @type {?}\n     */\n    DragDropRegistry.prototype.scroll;\n    /**\n     * Event listener that will prevent the default browser action while the user is dragging.\n     * \\@param event Event whose default action should be prevented.\n     * @type {?}\n     * @private\n     */\n    DragDropRegistry.prototype._preventDefaultWhileDragging;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragDropRegistry.prototype._ngZone;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-drop.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Default configuration to be used when creating a `DragRef`.\n * @type {?}\n */\nconst DEFAULT_CONFIG = {\n    dragStartThreshold: 5,\n    pointerDirectionChangeThreshold: 5\n};\n/**\n * Service that allows for drag-and-drop functionality to be attached to DOM elements.\n */\nclass DragDrop {\n    /**\n     * @param {?} _document\n     * @param {?} _ngZone\n     * @param {?} _viewportRuler\n     * @param {?} _dragDropRegistry\n     */\n    constructor(_document, _ngZone, _viewportRuler, _dragDropRegistry) {\n        this._document = _document;\n        this._ngZone = _ngZone;\n        this._viewportRuler = _viewportRuler;\n        this._dragDropRegistry = _dragDropRegistry;\n    }\n    /**\n     * Turns an element into a draggable item.\n     * @template T\n     * @param {?} element Element to which to attach the dragging functionality.\n     * @param {?=} config Object used to configure the dragging behavior.\n     * @return {?}\n     */\n    createDrag(element, config = DEFAULT_CONFIG) {\n        return new DragRef(element, config, this._document, this._ngZone, this._viewportRuler, this._dragDropRegistry);\n    }\n    /**\n     * Turns an element into a drop list.\n     * @template T\n     * @param {?} element Element to which to attach the drop list functionality.\n     * @return {?}\n     */\n    createDropList(element) {\n        return new DropListRef(element, this._dragDropRegistry, this._document, this._ngZone, this._viewportRuler);\n    }\n}\nDragDrop.ɵfac = function DragDrop_Factory(t) { return new (t || DragDrop)(ɵngcc0.ɵɵinject(DOCUMENT), ɵngcc0.ɵɵinject(ɵngcc0.NgZone), ɵngcc0.ɵɵinject(ɵngcc1.ViewportRuler), ɵngcc0.ɵɵinject(DragDropRegistry)); };\n/** @nocollapse */\nDragDrop.ctorParameters = () => [\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: NgZone },\n    { type: ViewportRuler },\n    { type: DragDropRegistry }\n];\n/** @nocollapse */ DragDrop.ɵprov = ɵɵdefineInjectable({ factory: function DragDrop_Factory() { return new DragDrop(ɵɵinject(DOCUMENT), ɵɵinject(NgZone), ɵɵinject(ViewportRuler), ɵɵinject(DragDropRegistry)); }, token: DragDrop, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DragDrop, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc0.NgZone }, { type: ɵngcc1.ViewportRuler }, { type: DragDropRegistry }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    DragDrop.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragDrop.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragDrop.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    DragDrop.prototype._dragDropRegistry;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-events.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Event emitted when the user starts dragging a draggable.\n * @record\n * @template T\n */\nfunction CdkDragStart() { }\nif (false) {\n    /**\n     * Draggable that emitted the event.\n     * @type {?}\n     */\n    CdkDragStart.prototype.source;\n}\n/**\n * Event emitted when the user releases an item, before any animations have started.\n * @record\n * @template T\n */\nfunction CdkDragRelease() { }\nif (false) {\n    /**\n     * Draggable that emitted the event.\n     * @type {?}\n     */\n    CdkDragRelease.prototype.source;\n}\n/**\n * Event emitted when the user stops dragging a draggable.\n * @record\n * @template T\n */\nfunction CdkDragEnd() { }\nif (false) {\n    /**\n     * Draggable that emitted the event.\n     * @type {?}\n     */\n    CdkDragEnd.prototype.source;\n    /**\n     * Distance in pixels that the user has dragged since the drag sequence started.\n     * @type {?}\n     */\n    CdkDragEnd.prototype.distance;\n}\n/**\n * Event emitted when the user moves an item into a new drop container.\n * @record\n * @template T, I\n */\nfunction CdkDragEnter() { }\nif (false) {\n    /**\n     * Container into which the user has moved the item.\n     * @type {?}\n     */\n    CdkDragEnter.prototype.container;\n    /**\n     * Item that was moved into the container.\n     * @type {?}\n     */\n    CdkDragEnter.prototype.item;\n    /**\n     * Index at which the item has entered the container.\n     * @type {?}\n     */\n    CdkDragEnter.prototype.currentIndex;\n}\n/**\n * Event emitted when the user removes an item from a\n * drop container by moving it into another one.\n * @record\n * @template T, I\n */\nfunction CdkDragExit() { }\nif (false) {\n    /**\n     * Container from which the user has a removed an item.\n     * @type {?}\n     */\n    CdkDragExit.prototype.container;\n    /**\n     * Item that was removed from the container.\n     * @type {?}\n     */\n    CdkDragExit.prototype.item;\n}\n/**\n * Event emitted when the user drops a draggable item inside a drop container.\n * @record\n * @template T, O\n */\nfunction CdkDragDrop() { }\nif (false) {\n    /**\n     * Index of the item when it was picked up.\n     * @type {?}\n     */\n    CdkDragDrop.prototype.previousIndex;\n    /**\n     * Current index of the item.\n     * @type {?}\n     */\n    CdkDragDrop.prototype.currentIndex;\n    /**\n     * Item that is being dropped.\n     * @type {?}\n     */\n    CdkDragDrop.prototype.item;\n    /**\n     * Container in which the item was dropped.\n     * @type {?}\n     */\n    CdkDragDrop.prototype.container;\n    /**\n     * Container from which the item was picked up. Can be the same as the `container`.\n     * @type {?}\n     */\n    CdkDragDrop.prototype.previousContainer;\n    /**\n     * Whether the user's pointer was over the container when the item was dropped.\n     * @type {?}\n     */\n    CdkDragDrop.prototype.isPointerOverContainer;\n    /**\n     * Distance in pixels that the user has dragged since the drag sequence started.\n     * @type {?}\n     */\n    CdkDragDrop.prototype.distance;\n}\n/**\n * Event emitted as the user is dragging a draggable item.\n * @record\n * @template T\n */\nfunction CdkDragMove() { }\nif (false) {\n    /**\n     * Item that is being dragged.\n     * @type {?}\n     */\n    CdkDragMove.prototype.source;\n    /**\n     * Position of the user's pointer on the page.\n     * @type {?}\n     */\n    CdkDragMove.prototype.pointerPosition;\n    /**\n     * Native event that is causing the dragging.\n     * @type {?}\n     */\n    CdkDragMove.prototype.event;\n    /**\n     * Distance in pixels that the user has dragged since the drag sequence started.\n     * @type {?}\n     */\n    CdkDragMove.prototype.distance;\n    /**\n     * Indicates the direction in which the user is dragging the element along each axis.\n     * `1` means that the position is increasing (e.g. the user is moving to the right or downwards),\n     * whereas `-1` means that it's decreasing (they're moving to the left or upwards). `0` means\n     * that the position hasn't changed.\n     * @type {?}\n     */\n    CdkDragMove.prototype.delta;\n}\n/**\n * Event emitted when the user swaps the position of two drag items.\n * @record\n * @template T, I\n */\nfunction CdkDragSortEvent() { }\nif (false) {\n    /**\n     * Index from which the item was sorted previously.\n     * @type {?}\n     */\n    CdkDragSortEvent.prototype.previousIndex;\n    /**\n     * Index that the item is currently in.\n     * @type {?}\n     */\n    CdkDragSortEvent.prototype.currentIndex;\n    /**\n     * Container that the item belongs to.\n     * @type {?}\n     */\n    CdkDragSortEvent.prototype.container;\n    /**\n     * Item that is being sorted.\n     * @type {?}\n     */\n    CdkDragSortEvent.prototype.item;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-parent.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that can be used for a `CdkDrag` to provide itself as a parent to the\n * drag-specific child directive (`CdkDragHandle`, `CdkDragPreview` etc.). Used primarily\n * to avoid circular imports.\n * \\@docs-private\n * @type {?}\n */\nconst CDK_DRAG_PARENT = new InjectionToken('CDK_DRAG_PARENT');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/directives/drag-handle.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Handle that can be used to drag and CdkDrag instance.\n */\nclass CdkDragHandle {\n    /**\n     * @param {?} element\n     * @param {?=} parentDrag\n     */\n    constructor(element, parentDrag) {\n        this.element = element;\n        /**\n         * Emits when the state of the handle has changed.\n         */\n        this._stateChanges = new Subject();\n        this._disabled = false;\n        this._parentDrag = parentDrag;\n        toggleNativeDragInteractions(element.nativeElement, false);\n    }\n    /**\n     * Whether starting to drag through this handle is disabled.\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = coerceBooleanProperty(value);\n        this._stateChanges.next(this);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._stateChanges.complete();\n    }\n}\nCdkDragHandle.ɵfac = function CdkDragHandle_Factory(t) { return new (t || CdkDragHandle)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_PARENT, 8)); };\nCdkDragHandle.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkDragHandle, selectors: [[\"\", \"cdkDragHandle\", \"\"]], hostAttrs: [1, \"cdk-drag-handle\"], inputs: { disabled: [\"cdkDragHandleDisabled\", \"disabled\"] } });\n/** @nocollapse */\nCdkDragHandle.ctorParameters = () => [\n    { type: ElementRef },\n    { type: undefined, decorators: [{ type: Inject, args: [CDK_DRAG_PARENT,] }, { type: Optional }] }\n];\nCdkDragHandle.propDecorators = {\n    disabled: [{ type: Input, args: ['cdkDragHandleDisabled',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkDragHandle, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkDragHandle]',\n                host: {\n                    'class': 'cdk-drag-handle'\n                }\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [CDK_DRAG_PARENT]\n            }, {\n                type: Optional\n            }] }]; }, { disabled: [{\n            type: Input,\n            args: ['cdkDragHandleDisabled']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkDragHandle.ngAcceptInputType_disabled;\n    /**\n     * Closest parent draggable instance.\n     * @type {?}\n     */\n    CdkDragHandle.prototype._parentDrag;\n    /**\n     * Emits when the state of the handle has changed.\n     * @type {?}\n     */\n    CdkDragHandle.prototype._stateChanges;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDragHandle.prototype._disabled;\n    /** @type {?} */\n    CdkDragHandle.prototype.element;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/directives/drag-placeholder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Element that will be used as a template for the placeholder of a CdkDrag when\n * it is being dragged. The placeholder is displayed in place of the element being dragged.\n * @template T\n */\nclass CdkDragPlaceholder {\n    /**\n     * @param {?} templateRef\n     */\n    constructor(templateRef) {\n        this.templateRef = templateRef;\n    }\n}\nCdkDragPlaceholder.ɵfac = function CdkDragPlaceholder_Factory(t) { return new (t || CdkDragPlaceholder)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef)); };\nCdkDragPlaceholder.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkDragPlaceholder, selectors: [[\"ng-template\", \"cdkDragPlaceholder\", \"\"]], inputs: { data: \"data\" } });\n/** @nocollapse */\nCdkDragPlaceholder.ctorParameters = () => [\n    { type: TemplateRef }\n];\nCdkDragPlaceholder.propDecorators = {\n    data: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkDragPlaceholder, [{\n        type: Directive,\n        args: [{\n                selector: 'ng-template[cdkDragPlaceholder]'\n            }]\n    }], function () { return [{ type: ɵngcc0.TemplateRef }]; }, { data: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * Context data to be added to the placeholder template instance.\n     * @type {?}\n     */\n    CdkDragPlaceholder.prototype.data;\n    /** @type {?} */\n    CdkDragPlaceholder.prototype.templateRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/directives/drag-preview.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Element that will be used as a template for the preview\n * of a CdkDrag when it is being dragged.\n * @template T\n */\nclass CdkDragPreview {\n    /**\n     * @param {?} templateRef\n     */\n    constructor(templateRef) {\n        this.templateRef = templateRef;\n        this._matchSize = false;\n    }\n    /**\n     * Whether the preview should preserve the same size as the item that is being dragged.\n     * @return {?}\n     */\n    get matchSize() { return this._matchSize; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set matchSize(value) { this._matchSize = coerceBooleanProperty(value); }\n}\nCdkDragPreview.ɵfac = function CdkDragPreview_Factory(t) { return new (t || CdkDragPreview)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef)); };\nCdkDragPreview.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkDragPreview, selectors: [[\"ng-template\", \"cdkDragPreview\", \"\"]], inputs: { matchSize: \"matchSize\", data: \"data\" } });\n/** @nocollapse */\nCdkDragPreview.ctorParameters = () => [\n    { type: TemplateRef }\n];\nCdkDragPreview.propDecorators = {\n    data: [{ type: Input }],\n    matchSize: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkDragPreview, [{\n        type: Directive,\n        args: [{\n                selector: 'ng-template[cdkDragPreview]'\n            }]\n    }], function () { return [{ type: ɵngcc0.TemplateRef }]; }, { matchSize: [{\n            type: Input\n        }], data: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkDragPreview.ngAcceptInputType_matchSize;\n    /**\n     * Context data to be added to the preview template instance.\n     * @type {?}\n     */\n    CdkDragPreview.prototype.data;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDragPreview.prototype._matchSize;\n    /** @type {?} */\n    CdkDragPreview.prototype.templateRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/directives/config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that can be used to configure the\n * behavior of the drag&drop-related components.\n * @type {?}\n */\nconst CDK_DRAG_CONFIG = new InjectionToken('CDK_DRAG_CONFIG');\n/**\n * Object that can be used to configure the drag\n * items and drop lists within a module or a component.\n * @record\n */\nfunction DragDropConfig() { }\nif (false) {\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.lockAxis;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.dragStartDelay;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.constrainPosition;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.previewClass;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.boundaryElement;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.rootElementSelector;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.draggingDisabled;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.sortingDisabled;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.listAutoScrollDisabled;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.listOrientation;\n    /** @type {?|undefined} */\n    DragDropConfig.prototype.zIndex;\n}\n/**\n * @deprecated No longer being used. To be removed.\n * \\@breaking-change 10.0.0\n * \\@docs-private\n * @return {?}\n */\nfunction CDK_DRAG_CONFIG_FACTORY() {\n    return { dragStartThreshold: 5, pointerDirectionChangeThreshold: 5 };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/directives/drag.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that is used to provide a CdkDropList instance to CdkDrag.\n * Used for avoiding circular imports.\n * @type {?}\n */\nconst CDK_DROP_LIST = new InjectionToken('CDK_DROP_LIST');\n/**\n * Element that can be moved inside a CdkDropList container.\n * @template T\n */\nclass CdkDrag {\n    /**\n     * @param {?} element\n     * @param {?} dropContainer\n     * @param {?} _document\n     * @param {?} _ngZone\n     * @param {?} _viewContainerRef\n     * @param {?} config\n     * @param {?} _dir\n     * @param {?} dragDrop\n     * @param {?} _changeDetectorRef\n     */\n    constructor(element, dropContainer, _document, _ngZone, _viewContainerRef, config, _dir, dragDrop, _changeDetectorRef) {\n        this.element = element;\n        this.dropContainer = dropContainer;\n        this._document = _document;\n        this._ngZone = _ngZone;\n        this._viewContainerRef = _viewContainerRef;\n        this._dir = _dir;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._destroyed = new Subject();\n        /**\n         * Emits when the user starts dragging the item.\n         */\n        this.started = new EventEmitter();\n        /**\n         * Emits when the user has released a drag item, before any animations have started.\n         */\n        this.released = new EventEmitter();\n        /**\n         * Emits when the user stops dragging an item in the container.\n         */\n        this.ended = new EventEmitter();\n        /**\n         * Emits when the user has moved the item into a new container.\n         */\n        this.entered = new EventEmitter();\n        /**\n         * Emits when the user removes the item its container by dragging it into another container.\n         */\n        this.exited = new EventEmitter();\n        /**\n         * Emits when the user drops the item inside a container.\n         */\n        this.dropped = new EventEmitter();\n        /**\n         * Emits as the user is dragging the item. Use with caution,\n         * because this event will fire for every pixel that the user has dragged.\n         */\n        this.moved = new Observable((/**\n         * @param {?} observer\n         * @return {?}\n         */\n        (observer) => {\n            /** @type {?} */\n            const subscription = this._dragRef.moved.pipe(map((/**\n             * @param {?} movedEvent\n             * @return {?}\n             */\n            movedEvent => ({\n                source: this,\n                pointerPosition: movedEvent.pointerPosition,\n                event: movedEvent.event,\n                delta: movedEvent.delta,\n                distance: movedEvent.distance\n            })))).subscribe(observer);\n            return (/**\n             * @return {?}\n             */\n            () => {\n                subscription.unsubscribe();\n            });\n        }));\n        this._dragRef = dragDrop.createDrag(element, {\n            dragStartThreshold: config && config.dragStartThreshold != null ?\n                config.dragStartThreshold : 5,\n            pointerDirectionChangeThreshold: config && config.pointerDirectionChangeThreshold != null ?\n                config.pointerDirectionChangeThreshold : 5,\n            zIndex: config === null || config === void 0 ? void 0 : config.zIndex\n        });\n        this._dragRef.data = this;\n        if (config) {\n            this._assignDefaults(config);\n        }\n        // Note that usually the container is assigned when the drop list is picks up the item, but in\n        // some cases (mainly transplanted views with OnPush, see #18341) we may end up in a situation\n        // where there are no items on the first change detection pass, but the items get picked up as\n        // soon as the user triggers another pass by dragging. This is a problem, because the item would\n        // have to switch from standalone mode to drag mode in the middle of the dragging sequence which\n        // is too late since the two modes save different kinds of information. We work around it by\n        // assigning the drop container both from here and the list.\n        if (dropContainer) {\n            this._dragRef._withDropContainer(dropContainer._dropListRef);\n            dropContainer.addItem(this);\n        }\n        this._syncInputs(this._dragRef);\n        this._handleEvents(this._dragRef);\n    }\n    /**\n     * Whether starting to drag this element is disabled.\n     * @return {?}\n     */\n    get disabled() {\n        return this._disabled || (this.dropContainer && this.dropContainer.disabled);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = coerceBooleanProperty(value);\n        this._dragRef.disabled = this._disabled;\n    }\n    /**\n     * Returns the element that is being used as a placeholder\n     * while the current element is being dragged.\n     * @return {?}\n     */\n    getPlaceholderElement() {\n        return this._dragRef.getPlaceholderElement();\n    }\n    /**\n     * Returns the root draggable element.\n     * @return {?}\n     */\n    getRootElement() {\n        return this._dragRef.getRootElement();\n    }\n    /**\n     * Resets a standalone drag item to its initial position.\n     * @return {?}\n     */\n    reset() {\n        this._dragRef.reset();\n    }\n    /**\n     * Gets the pixel coordinates of the draggable outside of a drop container.\n     * @return {?}\n     */\n    getFreeDragPosition() {\n        return this._dragRef.getFreeDragPosition();\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterViewInit() {\n        // We need to wait for the zone to stabilize, in order for the reference\n        // element to be in the proper place in the DOM. This is mostly relevant\n        // for draggable elements inside portals since they get stamped out in\n        // their original DOM position and then they get transferred to the portal.\n        this._ngZone.onStable.asObservable()\n            .pipe(take(1), takeUntil(this._destroyed))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._updateRootElement();\n            // Listen for any newly-added handles.\n            this._handles.changes.pipe(startWith(this._handles), \n            // Sync the new handles with the DragRef.\n            tap((/**\n             * @param {?} handles\n             * @return {?}\n             */\n            (handles) => {\n                /** @type {?} */\n                const childHandleElements = handles\n                    .filter((/**\n                 * @param {?} handle\n                 * @return {?}\n                 */\n                handle => handle._parentDrag === this))\n                    .map((/**\n                 * @param {?} handle\n                 * @return {?}\n                 */\n                handle => handle.element));\n                this._dragRef.withHandles(childHandleElements);\n            })), \n            // Listen if the state of any of the handles changes.\n            switchMap((/**\n             * @param {?} handles\n             * @return {?}\n             */\n            (handles) => {\n                return (/** @type {?} */ (merge(...handles.map((/**\n                 * @param {?} item\n                 * @return {?}\n                 */\n                item => {\n                    return item._stateChanges.pipe(startWith(item));\n                })))));\n            })), takeUntil(this._destroyed)).subscribe((/**\n             * @param {?} handleInstance\n             * @return {?}\n             */\n            handleInstance => {\n                // Enabled/disable the handle that changed in the DragRef.\n                /** @type {?} */\n                const dragRef = this._dragRef;\n                /** @type {?} */\n                const handle = handleInstance.element.nativeElement;\n                handleInstance.disabled ? dragRef.disableHandle(handle) : dragRef.enableHandle(handle);\n            }));\n            if (this.freeDragPosition) {\n                this._dragRef.setFreeDragPosition(this.freeDragPosition);\n            }\n        }));\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        /** @type {?} */\n        const rootSelectorChange = changes['rootElementSelector'];\n        /** @type {?} */\n        const positionChange = changes['freeDragPosition'];\n        // We don't have to react to the first change since it's being\n        // handled in `ngAfterViewInit` where it needs to be deferred.\n        if (rootSelectorChange && !rootSelectorChange.firstChange) {\n            this._updateRootElement();\n        }\n        // Skip the first change since it's being handled in `ngAfterViewInit`.\n        if (positionChange && !positionChange.firstChange && this.freeDragPosition) {\n            this._dragRef.setFreeDragPosition(this.freeDragPosition);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this.dropContainer) {\n            this.dropContainer.removeItem(this);\n        }\n        this._destroyed.next();\n        this._destroyed.complete();\n        this._dragRef.dispose();\n    }\n    /**\n     * Syncs the root element with the `DragRef`.\n     * @private\n     * @return {?}\n     */\n    _updateRootElement() {\n        /** @type {?} */\n        const element = this.element.nativeElement;\n        /** @type {?} */\n        const rootElement = this.rootElementSelector ?\n            getClosestMatchingAncestor(element, this.rootElementSelector) : element;\n        if (rootElement && rootElement.nodeType !== this._document.ELEMENT_NODE) {\n            throw Error(`cdkDrag must be attached to an element node. ` +\n                `Currently attached to \"${rootElement.nodeName}\".`);\n        }\n        this._dragRef.withRootElement(rootElement || element);\n    }\n    /**\n     * Gets the boundary element, based on the `boundaryElement` value.\n     * @private\n     * @return {?}\n     */\n    _getBoundaryElement() {\n        /** @type {?} */\n        const boundary = this.boundaryElement;\n        if (!boundary) {\n            return null;\n        }\n        if (typeof boundary === 'string') {\n            return getClosestMatchingAncestor(this.element.nativeElement, boundary);\n        }\n        /** @type {?} */\n        const element = coerceElement(boundary);\n        if (isDevMode() && !element.contains(this.element.nativeElement)) {\n            throw Error('Draggable element is not inside of the node passed into cdkDragBoundary.');\n        }\n        return element;\n    }\n    /**\n     * Syncs the inputs of the CdkDrag with the options of the underlying DragRef.\n     * @private\n     * @param {?} ref\n     * @return {?}\n     */\n    _syncInputs(ref) {\n        ref.beforeStarted.subscribe((/**\n         * @return {?}\n         */\n        () => {\n            if (!ref.isDragging()) {\n                /** @type {?} */\n                const dir = this._dir;\n                /** @type {?} */\n                const dragStartDelay = this.dragStartDelay;\n                /** @type {?} */\n                const placeholder = this._placeholderTemplate ? {\n                    template: this._placeholderTemplate.templateRef,\n                    context: this._placeholderTemplate.data,\n                    viewContainer: this._viewContainerRef\n                } : null;\n                /** @type {?} */\n                const preview = this._previewTemplate ? {\n                    template: this._previewTemplate.templateRef,\n                    context: this._previewTemplate.data,\n                    matchSize: this._previewTemplate.matchSize,\n                    viewContainer: this._viewContainerRef\n                } : null;\n                ref.disabled = this.disabled;\n                ref.lockAxis = this.lockAxis;\n                ref.dragStartDelay = (typeof dragStartDelay === 'object' && dragStartDelay) ?\n                    dragStartDelay : coerceNumberProperty(dragStartDelay);\n                ref.constrainPosition = this.constrainPosition;\n                ref.previewClass = this.previewClass;\n                ref\n                    .withBoundaryElement(this._getBoundaryElement())\n                    .withPlaceholderTemplate(placeholder)\n                    .withPreviewTemplate(preview);\n                if (dir) {\n                    ref.withDirection(dir.value);\n                }\n            }\n        }));\n    }\n    /**\n     * Handles the events from the underlying `DragRef`.\n     * @private\n     * @param {?} ref\n     * @return {?}\n     */\n    _handleEvents(ref) {\n        ref.started.subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this.started.emit({ source: this });\n            // Since all of these events run outside of change detection,\n            // we need to ensure that everything is marked correctly.\n            this._changeDetectorRef.markForCheck();\n        }));\n        ref.released.subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this.released.emit({ source: this });\n        }));\n        ref.ended.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.ended.emit({ source: this, distance: event.distance });\n            // Since all of these events run outside of change detection,\n            // we need to ensure that everything is marked correctly.\n            this._changeDetectorRef.markForCheck();\n        }));\n        ref.entered.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.entered.emit({\n                container: event.container.data,\n                item: this,\n                currentIndex: event.currentIndex\n            });\n        }));\n        ref.exited.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.exited.emit({\n                container: event.container.data,\n                item: this\n            });\n        }));\n        ref.dropped.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.dropped.emit({\n                previousIndex: event.previousIndex,\n                currentIndex: event.currentIndex,\n                previousContainer: event.previousContainer.data,\n                container: event.container.data,\n                isPointerOverContainer: event.isPointerOverContainer,\n                item: this,\n                distance: event.distance\n            });\n        }));\n    }\n    /**\n     * Assigns the default input values based on a provided config object.\n     * @private\n     * @param {?} config\n     * @return {?}\n     */\n    _assignDefaults(config) {\n        const { lockAxis, dragStartDelay, constrainPosition, previewClass, boundaryElement, draggingDisabled, rootElementSelector } = config;\n        this.disabled = draggingDisabled == null ? false : draggingDisabled;\n        this.dragStartDelay = dragStartDelay || 0;\n        if (lockAxis) {\n            this.lockAxis = lockAxis;\n        }\n        if (constrainPosition) {\n            this.constrainPosition = constrainPosition;\n        }\n        if (previewClass) {\n            this.previewClass = previewClass;\n        }\n        if (boundaryElement) {\n            this.boundaryElement = boundaryElement;\n        }\n        if (rootElementSelector) {\n            this.rootElementSelector = rootElementSelector;\n        }\n    }\n}\nCdkDrag.ɵfac = function CdkDrag_Factory(t) { return new (t || CdkDrag)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(CDK_DROP_LIST, 12), ɵngcc0.ɵɵdirectiveInject(DOCUMENT), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_CONFIG, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(DragDrop), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef)); };\nCdkDrag.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkDrag, selectors: [[\"\", \"cdkDrag\", \"\"]], contentQueries: function CdkDrag_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {\n        ɵngcc0.ɵɵcontentQuery(dirIndex, CdkDragPreview, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, CdkDragPlaceholder, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, CdkDragHandle, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._previewTemplate = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._placeholderTemplate = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._handles = _t);\n    } }, hostAttrs: [1, \"cdk-drag\"], hostVars: 4, hostBindings: function CdkDrag_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"cdk-drag-disabled\", ctx.disabled)(\"cdk-drag-dragging\", ctx._dragRef.isDragging());\n    } }, inputs: { disabled: [\"cdkDragDisabled\", \"disabled\"], dragStartDelay: [\"cdkDragStartDelay\", \"dragStartDelay\"], lockAxis: [\"cdkDragLockAxis\", \"lockAxis\"], constrainPosition: [\"cdkDragConstrainPosition\", \"constrainPosition\"], previewClass: [\"cdkDragPreviewClass\", \"previewClass\"], boundaryElement: [\"cdkDragBoundary\", \"boundaryElement\"], rootElementSelector: [\"cdkDragRootElement\", \"rootElementSelector\"], data: [\"cdkDragData\", \"data\"], freeDragPosition: [\"cdkDragFreeDragPosition\", \"freeDragPosition\"] }, outputs: { started: \"cdkDragStarted\", released: \"cdkDragReleased\", ended: \"cdkDragEnded\", entered: \"cdkDragEntered\", exited: \"cdkDragExited\", dropped: \"cdkDragDropped\", moved: \"cdkDragMoved\" }, exportAs: [\"cdkDrag\"], features: [ɵngcc0.ɵɵProvidersFeature([{ provide: CDK_DRAG_PARENT, useExisting: CdkDrag }]), ɵngcc0.ɵɵNgOnChangesFeature] });\n/** @nocollapse */\nCdkDrag.ctorParameters = () => [\n    { type: ElementRef },\n    { type: undefined, decorators: [{ type: Inject, args: [CDK_DROP_LIST,] }, { type: Optional }, { type: SkipSelf }] },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: NgZone },\n    { type: ViewContainerRef },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [CDK_DRAG_CONFIG,] }] },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: DragDrop },\n    { type: ChangeDetectorRef }\n];\nCdkDrag.propDecorators = {\n    _handles: [{ type: ContentChildren, args: [CdkDragHandle, { descendants: true },] }],\n    _previewTemplate: [{ type: ContentChild, args: [CdkDragPreview,] }],\n    _placeholderTemplate: [{ type: ContentChild, args: [CdkDragPlaceholder,] }],\n    data: [{ type: Input, args: ['cdkDragData',] }],\n    lockAxis: [{ type: Input, args: ['cdkDragLockAxis',] }],\n    rootElementSelector: [{ type: Input, args: ['cdkDragRootElement',] }],\n    boundaryElement: [{ type: Input, args: ['cdkDragBoundary',] }],\n    dragStartDelay: [{ type: Input, args: ['cdkDragStartDelay',] }],\n    freeDragPosition: [{ type: Input, args: ['cdkDragFreeDragPosition',] }],\n    disabled: [{ type: Input, args: ['cdkDragDisabled',] }],\n    constrainPosition: [{ type: Input, args: ['cdkDragConstrainPosition',] }],\n    previewClass: [{ type: Input, args: ['cdkDragPreviewClass',] }],\n    started: [{ type: Output, args: ['cdkDragStarted',] }],\n    released: [{ type: Output, args: ['cdkDragReleased',] }],\n    ended: [{ type: Output, args: ['cdkDragEnded',] }],\n    entered: [{ type: Output, args: ['cdkDragEntered',] }],\n    exited: [{ type: Output, args: ['cdkDragExited',] }],\n    dropped: [{ type: Output, args: ['cdkDragDropped',] }],\n    moved: [{ type: Output, args: ['cdkDragMoved',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkDrag, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkDrag]',\n                exportAs: 'cdkDrag',\n                host: {\n                    'class': 'cdk-drag',\n                    '[class.cdk-drag-disabled]': 'disabled',\n                    '[class.cdk-drag-dragging]': '_dragRef.isDragging()'\n                },\n                providers: [{ provide: CDK_DRAG_PARENT, useExisting: CdkDrag }]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [CDK_DROP_LIST]\n            }, {\n                type: Optional\n            }, {\n                type: SkipSelf\n            }] }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc0.NgZone }, { type: ɵngcc0.ViewContainerRef }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [CDK_DRAG_CONFIG]\n            }] }, { type: ɵngcc2.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: DragDrop }, { type: ɵngcc0.ChangeDetectorRef }]; }, { started: [{\n            type: Output,\n            args: ['cdkDragStarted']\n        }], released: [{\n            type: Output,\n            args: ['cdkDragReleased']\n        }], ended: [{\n            type: Output,\n            args: ['cdkDragEnded']\n        }], entered: [{\n            type: Output,\n            args: ['cdkDragEntered']\n        }], exited: [{\n            type: Output,\n            args: ['cdkDragExited']\n        }], dropped: [{\n            type: Output,\n            args: ['cdkDragDropped']\n        }], moved: [{\n            type: Output,\n            args: ['cdkDragMoved']\n        }], disabled: [{\n            type: Input,\n            args: ['cdkDragDisabled']\n        }], dragStartDelay: [{\n            type: Input,\n            args: ['cdkDragStartDelay']\n        }], lockAxis: [{\n            type: Input,\n            args: ['cdkDragLockAxis']\n        }], constrainPosition: [{\n            type: Input,\n            args: ['cdkDragConstrainPosition']\n        }], previewClass: [{\n            type: Input,\n            args: ['cdkDragPreviewClass']\n        }], boundaryElement: [{\n            type: Input,\n            args: ['cdkDragBoundary']\n        }], rootElementSelector: [{\n            type: Input,\n            args: ['cdkDragRootElement']\n        }], _handles: [{\n            type: ContentChildren,\n            args: [CdkDragHandle, { descendants: true }]\n        }], _previewTemplate: [{\n            type: ContentChild,\n            args: [CdkDragPreview]\n        }], _placeholderTemplate: [{\n            type: ContentChild,\n            args: [CdkDragPlaceholder]\n        }], data: [{\n            type: Input,\n            args: ['cdkDragData']\n        }], freeDragPosition: [{\n            type: Input,\n            args: ['cdkDragFreeDragPosition']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkDrag.ngAcceptInputType_disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDrag.prototype._destroyed;\n    /**\n     * Reference to the underlying drag instance.\n     * @type {?}\n     */\n    CdkDrag.prototype._dragRef;\n    /**\n     * Elements that can be used to drag the draggable item.\n     * @type {?}\n     */\n    CdkDrag.prototype._handles;\n    /**\n     * Element that will be used as a template to create the draggable item's preview.\n     * @type {?}\n     */\n    CdkDrag.prototype._previewTemplate;\n    /**\n     * Template for placeholder element rendered to show where a draggable would be dropped.\n     * @type {?}\n     */\n    CdkDrag.prototype._placeholderTemplate;\n    /**\n     * Arbitrary data to attach to this drag instance.\n     * @type {?}\n     */\n    CdkDrag.prototype.data;\n    /**\n     * Locks the position of the dragged element along the specified axis.\n     * @type {?}\n     */\n    CdkDrag.prototype.lockAxis;\n    /**\n     * Selector that will be used to determine the root draggable element, starting from\n     * the `cdkDrag` element and going up the DOM. Passing an alternate root element is useful\n     * when trying to enable dragging on an element that you might not have access to.\n     * @type {?}\n     */\n    CdkDrag.prototype.rootElementSelector;\n    /**\n     * Node or selector that will be used to determine the element to which the draggable's\n     * position will be constrained. If a string is passed in, it'll be used as a selector that\n     * will be matched starting from the element's parent and going up the DOM until a match\n     * has been found.\n     * @type {?}\n     */\n    CdkDrag.prototype.boundaryElement;\n    /**\n     * Amount of milliseconds to wait after the user has put their\n     * pointer down before starting to drag the element.\n     * @type {?}\n     */\n    CdkDrag.prototype.dragStartDelay;\n    /**\n     * Sets the position of a `CdkDrag` that is outside of a drop container.\n     * Can be used to restore the element's position for a returning user.\n     * @type {?}\n     */\n    CdkDrag.prototype.freeDragPosition;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDrag.prototype._disabled;\n    /**\n     * Function that can be used to customize the logic of how the position of the drag item\n     * is limited while it's being dragged. Gets called with a point containing the current position\n     * of the user's pointer on the page and should return a point describing where the item should\n     * be rendered.\n     * @type {?}\n     */\n    CdkDrag.prototype.constrainPosition;\n    /**\n     * Class to be added to the preview element.\n     * @type {?}\n     */\n    CdkDrag.prototype.previewClass;\n    /**\n     * Emits when the user starts dragging the item.\n     * @type {?}\n     */\n    CdkDrag.prototype.started;\n    /**\n     * Emits when the user has released a drag item, before any animations have started.\n     * @type {?}\n     */\n    CdkDrag.prototype.released;\n    /**\n     * Emits when the user stops dragging an item in the container.\n     * @type {?}\n     */\n    CdkDrag.prototype.ended;\n    /**\n     * Emits when the user has moved the item into a new container.\n     * @type {?}\n     */\n    CdkDrag.prototype.entered;\n    /**\n     * Emits when the user removes the item its container by dragging it into another container.\n     * @type {?}\n     */\n    CdkDrag.prototype.exited;\n    /**\n     * Emits when the user drops the item inside a container.\n     * @type {?}\n     */\n    CdkDrag.prototype.dropped;\n    /**\n     * Emits as the user is dragging the item. Use with caution,\n     * because this event will fire for every pixel that the user has dragged.\n     * @type {?}\n     */\n    CdkDrag.prototype.moved;\n    /**\n     * Element that the draggable is attached to.\n     * @type {?}\n     */\n    CdkDrag.prototype.element;\n    /**\n     * Droppable container that the draggable is a part of.\n     * @type {?}\n     */\n    CdkDrag.prototype.dropContainer;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDrag.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDrag.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDrag.prototype._viewContainerRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDrag.prototype._dir;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDrag.prototype._changeDetectorRef;\n}\n/**\n * Gets the closest ancestor of an element that matches a selector.\n * @param {?} element\n * @param {?} selector\n * @return {?}\n */\nfunction getClosestMatchingAncestor(element, selector) {\n    /** @type {?} */\n    let currentElement = (/** @type {?} */ (element.parentElement));\n    while (currentElement) {\n        // IE doesn't support `matches` so we have to fall back to `msMatchesSelector`.\n        if (currentElement.matches ? currentElement.matches(selector) :\n            ((/** @type {?} */ (currentElement))).msMatchesSelector(selector)) {\n            return currentElement;\n        }\n        currentElement = currentElement.parentElement;\n    }\n    return null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/directives/drop-list-group.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Declaratively connects sibling `cdkDropList` instances together. All of the `cdkDropList`\n * elements that are placed inside a `cdkDropListGroup` will be connected to each other\n * automatically. Can be used as an alternative to the `cdkDropListConnectedTo` input\n * from `cdkDropList`.\n * @template T\n */\nclass CdkDropListGroup {\n    constructor() {\n        /**\n         * Drop lists registered inside the group.\n         */\n        this._items = new Set();\n        this._disabled = false;\n    }\n    /**\n     * Whether starting a dragging sequence from inside this group is disabled.\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = coerceBooleanProperty(value);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._items.clear();\n    }\n}\nCdkDropListGroup.ɵfac = function CdkDropListGroup_Factory(t) { return new (t || CdkDropListGroup)(); };\nCdkDropListGroup.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkDropListGroup, selectors: [[\"\", \"cdkDropListGroup\", \"\"]], inputs: { disabled: [\"cdkDropListGroupDisabled\", \"disabled\"] }, exportAs: [\"cdkDropListGroup\"] });\nCdkDropListGroup.propDecorators = {\n    disabled: [{ type: Input, args: ['cdkDropListGroupDisabled',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkDropListGroup, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkDropListGroup]',\n                exportAs: 'cdkDropListGroup'\n            }]\n    }], function () { return []; }, { disabled: [{\n            type: Input,\n            args: ['cdkDropListGroupDisabled']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    CdkDropListGroup.ngAcceptInputType_disabled;\n    /**\n     * Drop lists registered inside the group.\n     * @type {?}\n     */\n    CdkDropListGroup.prototype._items;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDropListGroup.prototype._disabled;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/directives/drop-list.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Counter used to generate unique ids for drop zones.\n * @type {?}\n */\nlet _uniqueIdCounter = 0;\n/**\n * Internal compile-time-only representation of a `CdkDropList`.\n * Used to avoid circular import issues between the `CdkDropList` and the `CdkDrag`.\n * \\@docs-private\n * @record\n */\nfunction CdkDropListInternal() { }\nconst ɵ0 = undefined;\n/**\n * Container that wraps a set of draggable items.\n * @template T\n */\nclass CdkDropList {\n    /**\n     * @param {?} element\n     * @param {?} dragDrop\n     * @param {?} _changeDetectorRef\n     * @param {?=} _dir\n     * @param {?=} _group\n     * @param {?=} _scrollDispatcher\n     * @param {?=} config\n     */\n    constructor(element, dragDrop, _changeDetectorRef, _dir, _group, _scrollDispatcher, config) {\n        this.element = element;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._dir = _dir;\n        this._group = _group;\n        this._scrollDispatcher = _scrollDispatcher;\n        /**\n         * Emits when the list has been destroyed.\n         */\n        this._destroyed = new Subject();\n        /**\n         * Other draggable containers that this container is connected to and into which the\n         * container's items can be transferred. Can either be references to other drop containers,\n         * or their unique IDs.\n         */\n        this.connectedTo = [];\n        /**\n         * Unique ID for the drop zone. Can be used as a reference\n         * in the `connectedTo` of another `CdkDropList`.\n         */\n        this.id = `cdk-drop-list-${_uniqueIdCounter++}`;\n        /**\n         * Function that is used to determine whether an item\n         * is allowed to be moved into a drop container.\n         */\n        this.enterPredicate = (/**\n         * @return {?}\n         */\n        () => true);\n        /**\n         * Emits when the user drops an item inside the container.\n         */\n        this.dropped = new EventEmitter();\n        /**\n         * Emits when the user has moved a new drag item into this container.\n         */\n        this.entered = new EventEmitter();\n        /**\n         * Emits when the user removes an item from the container\n         * by dragging it into another container.\n         */\n        this.exited = new EventEmitter();\n        /**\n         * Emits as the user is swapping items while actively dragging.\n         */\n        this.sorted = new EventEmitter();\n        /**\n         * Keeps track of the items that are registered with this container. Historically we used to\n         * do this with a `ContentChildren` query, however queries don't handle transplanted views very\n         * well which means that we can't handle cases like dragging the headers of a `mat-table`\n         * correctly. What we do instead is to have the items register themselves with the container\n         * and then we sort them based on their position in the DOM.\n         */\n        this._unsortedItems = new Set();\n        this._dropListRef = dragDrop.createDropList(element);\n        this._dropListRef.data = this;\n        if (config) {\n            this._assignDefaults(config);\n        }\n        this._dropListRef.enterPredicate = (/**\n         * @param {?} drag\n         * @param {?} drop\n         * @return {?}\n         */\n        (drag, drop) => {\n            return this.enterPredicate(drag.data, drop.data);\n        });\n        this._setupInputSyncSubscription(this._dropListRef);\n        this._handleEvents(this._dropListRef);\n        CdkDropList._dropLists.push(this);\n        if (_group) {\n            _group._items.add(this);\n        }\n    }\n    /**\n     * Whether starting a dragging sequence from this container is disabled.\n     * @return {?}\n     */\n    get disabled() {\n        return this._disabled || (!!this._group && this._group.disabled);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        // Usually we sync the directive and ref state right before dragging starts, in order to have\n        // a single point of failure and to avoid having to use setters for everything. `disabled` is\n        // a special case, because it can prevent the `beforeStarted` event from firing, which can lock\n        // the user in a disabled state, so we also need to sync it as it's being set.\n        this._dropListRef.disabled = this._disabled = coerceBooleanProperty(value);\n    }\n    /**\n     * Registers an items with the drop list.\n     * @param {?} item\n     * @return {?}\n     */\n    addItem(item) {\n        this._unsortedItems.add(item);\n        if (this._dropListRef.isDragging()) {\n            this._syncItemsWithRef();\n        }\n    }\n    /**\n     * Removes an item from the drop list.\n     * @param {?} item\n     * @return {?}\n     */\n    removeItem(item) {\n        this._unsortedItems.delete(item);\n        if (this._dropListRef.isDragging()) {\n            this._syncItemsWithRef();\n        }\n    }\n    /**\n     * Gets the registered items in the list, sorted by their position in the DOM.\n     * @return {?}\n     */\n    getSortedItems() {\n        return Array.from(this._unsortedItems).sort((/**\n         * @param {?} a\n         * @param {?} b\n         * @return {?}\n         */\n        (a, b) => {\n            /** @type {?} */\n            const documentPosition = a._dragRef.getVisibleElement().compareDocumentPosition(b._dragRef.getVisibleElement());\n            // `compareDocumentPosition` returns a bitmask so we have to use a bitwise operator.\n            // https://developer.mozilla.org/en-US/docs/Web/API/Node/compareDocumentPosition\n            // tslint:disable-next-line:no-bitwise\n            return documentPosition & Node.DOCUMENT_POSITION_FOLLOWING ? -1 : 1;\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        /** @type {?} */\n        const index = CdkDropList._dropLists.indexOf(this);\n        if (index > -1) {\n            CdkDropList._dropLists.splice(index, 1);\n        }\n        if (this._group) {\n            this._group._items.delete(this);\n        }\n        this._unsortedItems.clear();\n        this._dropListRef.dispose();\n        this._destroyed.next();\n        this._destroyed.complete();\n    }\n    /**\n     * Starts dragging an item.\n     * @deprecated No longer being used. To be removed.\n     * \\@breaking-change 10.0.0\n     * @return {?}\n     */\n    start() {\n        this._dropListRef.start();\n    }\n    /**\n     * Drops an item into this container.\n     * @deprecated No longer being used. To be removed.\n     * \\@breaking-change 10.0.0\n     * @param {?} item Item being dropped into the container.\n     * @param {?} currentIndex Index at which the item should be inserted.\n     * @param {?} previousContainer Container from which the item got dragged in.\n     * @param {?} isPointerOverContainer Whether the user's pointer was over the\n     *    container when the item was dropped.\n     *\n     * @return {?}\n     */\n    drop(item, currentIndex, previousContainer, isPointerOverContainer) {\n        this._dropListRef.drop(item._dragRef, currentIndex, previousContainer._dropListRef, isPointerOverContainer, { x: 0, y: 0 });\n    }\n    /**\n     * Emits an event to indicate that the user moved an item into the container.\n     * @deprecated No longer being used. To be removed.\n     * \\@breaking-change 10.0.0\n     * @param {?} item Item that was moved into the container.\n     * @param {?} pointerX Position of the item along the X axis.\n     * @param {?} pointerY Position of the item along the Y axis.\n     * @return {?}\n     */\n    enter(item, pointerX, pointerY) {\n        this._dropListRef.enter(item._dragRef, pointerX, pointerY);\n    }\n    /**\n     * Removes an item from the container after it was dragged into another container by the user.\n     * @deprecated No longer being used. To be removed.\n     * \\@breaking-change 10.0.0\n     * @param {?} item Item that was dragged out.\n     * @return {?}\n     */\n    exit(item) {\n        this._dropListRef.exit(item._dragRef);\n    }\n    /**\n     * Figures out the index of an item in the container.\n     * @deprecated No longer being used. To be removed.\n     * \\@breaking-change 10.0.0\n     * @param {?} item Item whose index should be determined.\n     * @return {?}\n     */\n    getItemIndex(item) {\n        return this._dropListRef.getItemIndex(item._dragRef);\n    }\n    /**\n     * Syncs the inputs of the CdkDropList with the options of the underlying DropListRef.\n     * @private\n     * @param {?} ref\n     * @return {?}\n     */\n    _setupInputSyncSubscription(ref) {\n        if (this._dir) {\n            this._dir.change\n                .pipe(startWith(this._dir.value), takeUntil(this._destroyed))\n                .subscribe((/**\n             * @param {?} value\n             * @return {?}\n             */\n            value => ref.withDirection(value)));\n        }\n        ref.beforeStarted.subscribe((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const siblings = coerceArray(this.connectedTo).map((/**\n             * @param {?} drop\n             * @return {?}\n             */\n            drop => {\n                return typeof drop === 'string' ?\n                    (/** @type {?} */ (CdkDropList._dropLists.find((/**\n                     * @param {?} list\n                     * @return {?}\n                     */\n                    list => list.id === drop)))) : drop;\n            }));\n            if (this._group) {\n                this._group._items.forEach((/**\n                 * @param {?} drop\n                 * @return {?}\n                 */\n                drop => {\n                    if (siblings.indexOf(drop) === -1) {\n                        siblings.push(drop);\n                    }\n                }));\n            }\n            // Note that we resolve the scrollable parents here so that we delay the resolution\n            // as long as possible, ensuring that the element is in its final place in the DOM.\n            // @breaking-change 11.0.0 Remove null check for _scrollDispatcher once it's required.\n            if (!this._scrollableParentsResolved && this._scrollDispatcher) {\n                /** @type {?} */\n                const scrollableParents = this._scrollDispatcher\n                    .getAncestorScrollContainers(this.element)\n                    .map((/**\n                 * @param {?} scrollable\n                 * @return {?}\n                 */\n                scrollable => scrollable.getElementRef().nativeElement));\n                this._dropListRef.withScrollableParents(scrollableParents);\n                // Only do this once since it involves traversing the DOM and the parents\n                // shouldn't be able to change without the drop list being destroyed.\n                this._scrollableParentsResolved = true;\n            }\n            ref.disabled = this.disabled;\n            ref.lockAxis = this.lockAxis;\n            ref.sortingDisabled = coerceBooleanProperty(this.sortingDisabled);\n            ref.autoScrollDisabled = coerceBooleanProperty(this.autoScrollDisabled);\n            ref\n                .connectedTo(siblings.filter((/**\n             * @param {?} drop\n             * @return {?}\n             */\n            drop => drop && drop !== this)).map((/**\n             * @param {?} list\n             * @return {?}\n             */\n            list => list._dropListRef)))\n                .withOrientation(this.orientation);\n        }));\n    }\n    /**\n     * Handles events from the underlying DropListRef.\n     * @private\n     * @param {?} ref\n     * @return {?}\n     */\n    _handleEvents(ref) {\n        ref.beforeStarted.subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._syncItemsWithRef();\n            this._changeDetectorRef.markForCheck();\n        }));\n        ref.entered.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.entered.emit({\n                container: this,\n                item: event.item.data,\n                currentIndex: event.currentIndex\n            });\n        }));\n        ref.exited.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.exited.emit({\n                container: this,\n                item: event.item.data\n            });\n            this._changeDetectorRef.markForCheck();\n        }));\n        ref.sorted.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.sorted.emit({\n                previousIndex: event.previousIndex,\n                currentIndex: event.currentIndex,\n                container: this,\n                item: event.item.data\n            });\n        }));\n        ref.dropped.subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this.dropped.emit({\n                previousIndex: event.previousIndex,\n                currentIndex: event.currentIndex,\n                previousContainer: event.previousContainer.data,\n                container: event.container.data,\n                item: event.item.data,\n                isPointerOverContainer: event.isPointerOverContainer,\n                distance: event.distance\n            });\n            // Mark for check since all of these events run outside of change\n            // detection and we're not guaranteed for something else to have triggered it.\n            this._changeDetectorRef.markForCheck();\n        }));\n    }\n    /**\n     * Assigns the default input values based on a provided config object.\n     * @private\n     * @param {?} config\n     * @return {?}\n     */\n    _assignDefaults(config) {\n        const { lockAxis, draggingDisabled, sortingDisabled, listAutoScrollDisabled, listOrientation } = config;\n        this.disabled = draggingDisabled == null ? false : draggingDisabled;\n        this.sortingDisabled = sortingDisabled == null ? false : sortingDisabled;\n        this.autoScrollDisabled = listAutoScrollDisabled == null ? false : listAutoScrollDisabled;\n        this.orientation = listOrientation || 'vertical';\n        if (lockAxis) {\n            this.lockAxis = lockAxis;\n        }\n    }\n    /**\n     * Syncs up the registered drag items with underlying drop list ref.\n     * @private\n     * @return {?}\n     */\n    _syncItemsWithRef() {\n        this._dropListRef.withItems(this.getSortedItems().map((/**\n         * @param {?} item\n         * @return {?}\n         */\n        item => item._dragRef)));\n    }\n}\nCdkDropList.ɵfac = function CdkDropList_Factory(t) { return new (t || CdkDropList)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(DragDrop), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(CdkDropListGroup, 12), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.ScrollDispatcher), ɵngcc0.ɵɵdirectiveInject(CDK_DRAG_CONFIG, 8)); };\nCdkDropList.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: CdkDropList, selectors: [[\"\", \"cdkDropList\", \"\"], [\"cdk-drop-list\"]], hostAttrs: [1, \"cdk-drop-list\"], hostVars: 7, hostBindings: function CdkDropList_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵhostProperty(\"id\", ctx.id);\n        ɵngcc0.ɵɵclassProp(\"cdk-drop-list-disabled\", ctx.disabled)(\"cdk-drop-list-dragging\", ctx._dropListRef.isDragging())(\"cdk-drop-list-receiving\", ctx._dropListRef.isReceiving());\n    } }, inputs: { connectedTo: [\"cdkDropListConnectedTo\", \"connectedTo\"], id: \"id\", enterPredicate: [\"cdkDropListEnterPredicate\", \"enterPredicate\"], disabled: [\"cdkDropListDisabled\", \"disabled\"], sortingDisabled: [\"cdkDropListSortingDisabled\", \"sortingDisabled\"], autoScrollDisabled: [\"cdkDropListAutoScrollDisabled\", \"autoScrollDisabled\"], orientation: [\"cdkDropListOrientation\", \"orientation\"], lockAxis: [\"cdkDropListLockAxis\", \"lockAxis\"], data: [\"cdkDropListData\", \"data\"] }, outputs: { dropped: \"cdkDropListDropped\", entered: \"cdkDropListEntered\", exited: \"cdkDropListExited\", sorted: \"cdkDropListSorted\" }, exportAs: [\"cdkDropList\"], features: [ɵngcc0.ɵɵProvidersFeature([\n            // Prevent child drop lists from picking up the same group as their parent.\n            { provide: CdkDropListGroup, useValue: ɵ0 },\n            { provide: CDK_DROP_LIST, useExisting: CdkDropList },\n        ])] });\n/**\n * Keeps track of the drop lists that are currently on the page.\n */\nCdkDropList._dropLists = [];\n/** @nocollapse */\nCdkDropList.ctorParameters = () => [\n    { type: ElementRef },\n    { type: DragDrop },\n    { type: ChangeDetectorRef },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: CdkDropListGroup, decorators: [{ type: Optional }, { type: SkipSelf }] },\n    { type: ScrollDispatcher },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [CDK_DRAG_CONFIG,] }] }\n];\nCdkDropList.propDecorators = {\n    connectedTo: [{ type: Input, args: ['cdkDropListConnectedTo',] }],\n    data: [{ type: Input, args: ['cdkDropListData',] }],\n    orientation: [{ type: Input, args: ['cdkDropListOrientation',] }],\n    id: [{ type: Input }],\n    lockAxis: [{ type: Input, args: ['cdkDropListLockAxis',] }],\n    disabled: [{ type: Input, args: ['cdkDropListDisabled',] }],\n    sortingDisabled: [{ type: Input, args: ['cdkDropListSortingDisabled',] }],\n    enterPredicate: [{ type: Input, args: ['cdkDropListEnterPredicate',] }],\n    autoScrollDisabled: [{ type: Input, args: ['cdkDropListAutoScrollDisabled',] }],\n    dropped: [{ type: Output, args: ['cdkDropListDropped',] }],\n    entered: [{ type: Output, args: ['cdkDropListEntered',] }],\n    exited: [{ type: Output, args: ['cdkDropListExited',] }],\n    sorted: [{ type: Output, args: ['cdkDropListSorted',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(CdkDropList, [{\n        type: Directive,\n        args: [{\n                selector: '[cdkDropList], cdk-drop-list',\n                exportAs: 'cdkDropList',\n                providers: [\n                    // Prevent child drop lists from picking up the same group as their parent.\n                    { provide: CdkDropListGroup, useValue: ɵ0 },\n                    { provide: CDK_DROP_LIST, useExisting: CdkDropList },\n                ],\n                host: {\n                    'class': 'cdk-drop-list',\n                    '[id]': 'id',\n                    '[class.cdk-drop-list-disabled]': 'disabled',\n                    '[class.cdk-drop-list-dragging]': '_dropListRef.isDragging()',\n                    '[class.cdk-drop-list-receiving]': '_dropListRef.isReceiving()'\n                }\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: DragDrop }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc2.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: CdkDropListGroup, decorators: [{\n                type: Optional\n            }, {\n                type: SkipSelf\n            }] }, { type: ɵngcc1.ScrollDispatcher }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [CDK_DRAG_CONFIG]\n            }] }]; }, { connectedTo: [{\n            type: Input,\n            args: ['cdkDropListConnectedTo']\n        }], id: [{\n            type: Input\n        }], enterPredicate: [{\n            type: Input,\n            args: ['cdkDropListEnterPredicate']\n        }], dropped: [{\n            type: Output,\n            args: ['cdkDropListDropped']\n        }], entered: [{\n            type: Output,\n            args: ['cdkDropListEntered']\n        }], exited: [{\n            type: Output,\n            args: ['cdkDropListExited']\n        }], sorted: [{\n            type: Output,\n            args: ['cdkDropListSorted']\n        }], disabled: [{\n            type: Input,\n            args: ['cdkDropListDisabled']\n        }], sortingDisabled: [{\n            type: Input,\n            args: ['cdkDropListSortingDisabled']\n        }], autoScrollDisabled: [{\n            type: Input,\n            args: ['cdkDropListAutoScrollDisabled']\n        }], orientation: [{\n            type: Input,\n            args: ['cdkDropListOrientation']\n        }], lockAxis: [{\n            type: Input,\n            args: ['cdkDropListLockAxis']\n        }], data: [{\n            type: Input,\n            args: ['cdkDropListData']\n        }] }); })();\nif (false) {\n    /**\n     * Keeps track of the drop lists that are currently on the page.\n     * @type {?}\n     * @private\n     */\n    CdkDropList._dropLists;\n    /** @type {?} */\n    CdkDropList.ngAcceptInputType_disabled;\n    /** @type {?} */\n    CdkDropList.ngAcceptInputType_sortingDisabled;\n    /** @type {?} */\n    CdkDropList.ngAcceptInputType_autoScrollDisabled;\n    /**\n     * Emits when the list has been destroyed.\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._destroyed;\n    /**\n     * Whether the element's scrollable parents have been resolved.\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._scrollableParentsResolved;\n    /**\n     * Reference to the underlying drop list instance.\n     * @type {?}\n     */\n    CdkDropList.prototype._dropListRef;\n    /**\n     * Other draggable containers that this container is connected to and into which the\n     * container's items can be transferred. Can either be references to other drop containers,\n     * or their unique IDs.\n     * @type {?}\n     */\n    CdkDropList.prototype.connectedTo;\n    /**\n     * Arbitrary data to attach to this container.\n     * @type {?}\n     */\n    CdkDropList.prototype.data;\n    /**\n     * Direction in which the list is oriented.\n     * @type {?}\n     */\n    CdkDropList.prototype.orientation;\n    /**\n     * Unique ID for the drop zone. Can be used as a reference\n     * in the `connectedTo` of another `CdkDropList`.\n     * @type {?}\n     */\n    CdkDropList.prototype.id;\n    /**\n     * Locks the position of the draggable elements inside the container along the specified axis.\n     * @type {?}\n     */\n    CdkDropList.prototype.lockAxis;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._disabled;\n    /**\n     * Whether sorting within this drop list is disabled.\n     * @type {?}\n     */\n    CdkDropList.prototype.sortingDisabled;\n    /**\n     * Function that is used to determine whether an item\n     * is allowed to be moved into a drop container.\n     * @type {?}\n     */\n    CdkDropList.prototype.enterPredicate;\n    /**\n     * Whether to auto-scroll the view when the user moves their pointer close to the edges.\n     * @type {?}\n     */\n    CdkDropList.prototype.autoScrollDisabled;\n    /**\n     * Emits when the user drops an item inside the container.\n     * @type {?}\n     */\n    CdkDropList.prototype.dropped;\n    /**\n     * Emits when the user has moved a new drag item into this container.\n     * @type {?}\n     */\n    CdkDropList.prototype.entered;\n    /**\n     * Emits when the user removes an item from the container\n     * by dragging it into another container.\n     * @type {?}\n     */\n    CdkDropList.prototype.exited;\n    /**\n     * Emits as the user is swapping items while actively dragging.\n     * @type {?}\n     */\n    CdkDropList.prototype.sorted;\n    /**\n     * Keeps track of the items that are registered with this container. Historically we used to\n     * do this with a `ContentChildren` query, however queries don't handle transplanted views very\n     * well which means that we can't handle cases like dragging the headers of a `mat-table`\n     * correctly. What we do instead is to have the items register themselves with the container\n     * and then we sort them based on their position in the DOM.\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._unsortedItems;\n    /**\n     * Element that the drop list is attached to.\n     * @type {?}\n     */\n    CdkDropList.prototype.element;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._dir;\n    /**\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._group;\n    /**\n     * @deprecated _scrollDispatcher parameter to become required.\n     * \\@breaking-change 11.0.0\n     * @type {?}\n     * @private\n     */\n    CdkDropList.prototype._scrollDispatcher;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/drag-drop-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass DragDropModule {\n}\nDragDropModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: DragDropModule });\nDragDropModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function DragDropModule_Factory(t) { return new (t || DragDropModule)(); }, providers: [\n        DragDrop,\n    ], imports: [CdkScrollableModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(DragDropModule, { declarations: function () { return [CdkDropList, CdkDropListGroup, CdkDrag, CdkDragHandle, CdkDragPreview, CdkDragPlaceholder]; }, exports: function () { return [CdkScrollableModule, CdkDropList, CdkDropListGroup, CdkDrag, CdkDragHandle, CdkDragPreview, CdkDragPlaceholder]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(DragDropModule, [{\n        type: NgModule,\n        args: [{\n                declarations: [\n                    CdkDropList,\n                    CdkDropListGroup,\n                    CdkDrag,\n                    CdkDragHandle,\n                    CdkDragPreview,\n                    CdkDragPlaceholder,\n                ],\n                exports: [\n                    CdkScrollableModule,\n                    CdkDropList,\n                    CdkDropListGroup,\n                    CdkDrag,\n                    CdkDragHandle,\n                    CdkDragPreview,\n                    CdkDragPlaceholder,\n                ],\n                providers: [\n                    DragDrop,\n                ]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/cdk/drag-drop/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { CDK_DRAG_CONFIG, CDK_DRAG_CONFIG_FACTORY, CDK_DROP_LIST, CdkDrag, CdkDragHandle, CdkDragPlaceholder, CdkDragPreview, CdkDropList, CdkDropListGroup, DragDrop, DragDropModule, DragDropRegistry, DragRef, DropListRef, copyArrayItem, moveItemInArray, transferArrayItem, CDK_DRAG_PARENT as ɵangular_material_src_cdk_drag_drop_drag_drop_b };\n\n//# sourceMappingURL=drag-drop.js.map","import { Observable } from '../Observable';\nimport { from } from './from';\nimport { empty } from './empty';\nexport function defer(observableFactory) {\n    return new Observable(subscriber => {\n        let input;\n        try {\n            input = observableFactory();\n        }\n        catch (err) {\n            subscriber.error(err);\n            return undefined;\n        }\n        const source = input ? from(input) : empty();\n        return source.subscribe(subscriber);\n    });\n}\n//# sourceMappingURL=defer.js.map","import { Overlay, OverlayConfig, OverlayContainer, OverlayModule } from '@angular/cdk/overlay';\nimport { BasePortalOutlet, CdkPortalOutlet, ComponentPortal, TemplatePortal, PortalModule } from '@angular/cdk/portal';\nimport { EventEmitter, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, ChangeDetectorRef, Optional, Inject, ViewChild, InjectionToken, Injector, TemplateRef, Injectable, SkipSelf, Directive, Input, NgModule } from '@angular/core';\nimport { MatCommonModule } from '@angular/material/core';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { DOCUMENT, Location } from '@angular/common';\nimport { Subject, defer, of } from 'rxjs';\nimport { filter, take, startWith } from 'rxjs/operators';\nimport { trigger, state, style, transition, animate } from '@angular/animations';\nimport { FocusTrapFactory } from '@angular/cdk/a11y';\nimport { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/dialog-config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Possible overrides for a dialog's position.\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/cdk/portal';\nimport * as ɵngcc3 from '@angular/cdk/overlay';\nimport * as ɵngcc4 from '@angular/common';\n\nfunction MatDialogContainer_ng_template_0_Template(rf, ctx) { }\nfunction DialogPosition() { }\nif (false) {\n    /**\n     * Override for the dialog's top position.\n     * @type {?|undefined}\n     */\n    DialogPosition.prototype.top;\n    /**\n     * Override for the dialog's bottom position.\n     * @type {?|undefined}\n     */\n    DialogPosition.prototype.bottom;\n    /**\n     * Override for the dialog's left position.\n     * @type {?|undefined}\n     */\n    DialogPosition.prototype.left;\n    /**\n     * Override for the dialog's right position.\n     * @type {?|undefined}\n     */\n    DialogPosition.prototype.right;\n}\n/**\n * Configuration for opening a modal dialog with the MatDialog service.\n * @template D\n */\nclass MatDialogConfig {\n    constructor() {\n        /**\n         * The ARIA role of the dialog element.\n         */\n        this.role = 'dialog';\n        /**\n         * Custom class for the overlay pane.\n         */\n        this.panelClass = '';\n        /**\n         * Whether the dialog has a backdrop.\n         */\n        this.hasBackdrop = true;\n        /**\n         * Custom class for the backdrop.\n         */\n        this.backdropClass = '';\n        /**\n         * Whether the user can use escape or clicking on the backdrop to close the modal.\n         */\n        this.disableClose = false;\n        /**\n         * Width of the dialog.\n         */\n        this.width = '';\n        /**\n         * Height of the dialog.\n         */\n        this.height = '';\n        /**\n         * Max-width of the dialog. If a number is provided, assumes pixel units. Defaults to 80vw.\n         */\n        this.maxWidth = '80vw';\n        /**\n         * Data being injected into the child component.\n         */\n        this.data = null;\n        /**\n         * ID of the element that describes the dialog.\n         */\n        this.ariaDescribedBy = null;\n        /**\n         * ID of the element that labels the dialog.\n         */\n        this.ariaLabelledBy = null;\n        /**\n         * Aria label to assign to the dialog element.\n         */\n        this.ariaLabel = null;\n        /**\n         * Whether the dialog should focus the first focusable element on open.\n         */\n        this.autoFocus = true;\n        /**\n         * Whether the dialog should restore focus to the\n         * previously-focused element, after it's closed.\n         */\n        this.restoreFocus = true;\n        /**\n         * Whether the dialog should close when the user goes backwards/forwards in history.\n         * Note that this usually doesn't include clicking on links (unless the user is using\n         * the `HashLocationStrategy`).\n         */\n        this.closeOnNavigation = true;\n        // TODO(jelbourn): add configuration for lifecycle hooks, ARIA labelling.\n    }\n}\nif (false) {\n    /**\n     * Where the attached component should live in Angular's *logical* component tree.\n     * This affects what is available for injection and the change detection order for the\n     * component instantiated inside of the dialog. This does not affect where the dialog\n     * content will be rendered.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.viewContainerRef;\n    /**\n     * ID for the dialog. If omitted, a unique one will be generated.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.id;\n    /**\n     * The ARIA role of the dialog element.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.role;\n    /**\n     * Custom class for the overlay pane.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.panelClass;\n    /**\n     * Whether the dialog has a backdrop.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.hasBackdrop;\n    /**\n     * Custom class for the backdrop.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.backdropClass;\n    /**\n     * Whether the user can use escape or clicking on the backdrop to close the modal.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.disableClose;\n    /**\n     * Width of the dialog.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.width;\n    /**\n     * Height of the dialog.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.height;\n    /**\n     * Min-width of the dialog. If a number is provided, assumes pixel units.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.minWidth;\n    /**\n     * Min-height of the dialog. If a number is provided, assumes pixel units.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.minHeight;\n    /**\n     * Max-width of the dialog. If a number is provided, assumes pixel units. Defaults to 80vw.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.maxWidth;\n    /**\n     * Max-height of the dialog. If a number is provided, assumes pixel units.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.maxHeight;\n    /**\n     * Position overrides.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.position;\n    /**\n     * Data being injected into the child component.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.data;\n    /**\n     * Layout direction for the dialog's content.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.direction;\n    /**\n     * ID of the element that describes the dialog.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.ariaDescribedBy;\n    /**\n     * ID of the element that labels the dialog.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.ariaLabelledBy;\n    /**\n     * Aria label to assign to the dialog element.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.ariaLabel;\n    /**\n     * Whether the dialog should focus the first focusable element on open.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.autoFocus;\n    /**\n     * Whether the dialog should restore focus to the\n     * previously-focused element, after it's closed.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.restoreFocus;\n    /**\n     * Scroll strategy to be used for the dialog.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.scrollStrategy;\n    /**\n     * Whether the dialog should close when the user goes backwards/forwards in history.\n     * Note that this usually doesn't include clicking on links (unless the user is using\n     * the `HashLocationStrategy`).\n     * @type {?}\n     */\n    MatDialogConfig.prototype.closeOnNavigation;\n    /**\n     * Alternate `ComponentFactoryResolver` to use when resolving the associated component.\n     * @type {?}\n     */\n    MatDialogConfig.prototype.componentFactoryResolver;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/dialog-animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Animations used by MatDialog.\n * \\@docs-private\n * @type {?}\n */\nconst matDialogAnimations = {\n    /**\n     * Animation that is applied on the dialog container by defalt.\n     */\n    dialogContainer: trigger('dialogContainer', [\n        // Note: The `enter` animation transitions to `transform: none`, because for some reason\n        // specifying the transform explicitly, causes IE both to blur the dialog content and\n        // decimate the animation performance. Leaving it as `none` solves both issues.\n        state('void, exit', style({ opacity: 0, transform: 'scale(0.7)' })),\n        state('enter', style({ transform: 'none' })),\n        transition('* => enter', animate('150ms cubic-bezier(0, 0, 0.2, 1)', style({ transform: 'none', opacity: 1 }))),\n        transition('* => void, * => exit', animate('75ms cubic-bezier(0.4, 0.0, 0.2, 1)', style({ opacity: 0 }))),\n    ])\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/dialog-container.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Throws an exception for the case when a ComponentPortal is\n * attached to a DomPortalOutlet without an origin.\n * \\@docs-private\n * @return {?}\n */\nfunction throwMatDialogContentAlreadyAttachedError() {\n    throw Error('Attempting to attach dialog content after content is already attached');\n}\n/**\n * Internal component that wraps user-provided dialog content.\n * Animation is based on https://material.io/guidelines/motion/choreography.html.\n * \\@docs-private\n */\nclass MatDialogContainer extends BasePortalOutlet {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _focusTrapFactory\n     * @param {?} _changeDetectorRef\n     * @param {?} _document\n     * @param {?} _config\n     */\n    constructor(_elementRef, _focusTrapFactory, _changeDetectorRef, _document, _config) {\n        super();\n        this._elementRef = _elementRef;\n        this._focusTrapFactory = _focusTrapFactory;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._config = _config;\n        /**\n         * Element that was focused before the dialog was opened. Save this to restore upon close.\n         */\n        this._elementFocusedBeforeDialogWasOpened = null;\n        /**\n         * State of the dialog animation.\n         */\n        this._state = 'enter';\n        /**\n         * Emits when an animation state changes.\n         */\n        this._animationStateChanged = new EventEmitter();\n        /**\n         * Attaches a DOM portal to the dialog container.\n         * @param portal Portal to be attached.\n         * @deprecated To be turned into a method.\n         * \\@breaking-change 10.0.0\n         */\n        this.attachDomPortal = (/**\n         * @param {?} portal\n         * @return {?}\n         */\n        (portal) => {\n            if (this._portalOutlet.hasAttached()) {\n                throwMatDialogContentAlreadyAttachedError();\n            }\n            this._setupFocusTrap();\n            return this._portalOutlet.attachDomPortal(portal);\n        });\n        this._ariaLabelledBy = _config.ariaLabelledBy || null;\n        this._document = _document;\n    }\n    /**\n     * Attach a ComponentPortal as content to this dialog container.\n     * @template T\n     * @param {?} portal Portal to be attached as the dialog content.\n     * @return {?}\n     */\n    attachComponentPortal(portal) {\n        if (this._portalOutlet.hasAttached()) {\n            throwMatDialogContentAlreadyAttachedError();\n        }\n        this._setupFocusTrap();\n        return this._portalOutlet.attachComponentPortal(portal);\n    }\n    /**\n     * Attach a TemplatePortal as content to this dialog container.\n     * @template C\n     * @param {?} portal Portal to be attached as the dialog content.\n     * @return {?}\n     */\n    attachTemplatePortal(portal) {\n        if (this._portalOutlet.hasAttached()) {\n            throwMatDialogContentAlreadyAttachedError();\n        }\n        this._setupFocusTrap();\n        return this._portalOutlet.attachTemplatePortal(portal);\n    }\n    /**\n     * Moves focus back into the dialog if it was moved out.\n     * @return {?}\n     */\n    _recaptureFocus() {\n        if (!this._containsFocus()) {\n            /** @type {?} */\n            const focusWasTrapped = this._focusTrap.focusInitialElement();\n            if (!focusWasTrapped) {\n                this._elementRef.nativeElement.focus();\n            }\n        }\n    }\n    /**\n     * Moves the focus inside the focus trap.\n     * @private\n     * @return {?}\n     */\n    _trapFocus() {\n        // If we were to attempt to focus immediately, then the content of the dialog would not yet be\n        // ready in instances where change detection has to run first. To deal with this, we simply\n        // wait for the microtask queue to be empty.\n        if (this._config.autoFocus) {\n            this._focusTrap.focusInitialElementWhenReady();\n        }\n        else if (!this._containsFocus()) {\n            // Otherwise ensure that focus is on the dialog container. It's possible that a different\n            // component tried to move focus while the open animation was running. See:\n            // https://github.com/angular/components/issues/16215. Note that we only want to do this\n            // if the focus isn't inside the dialog already, because it's possible that the consumer\n            // turned off `autoFocus` in order to move focus themselves.\n            this._elementRef.nativeElement.focus();\n        }\n    }\n    /**\n     * Restores focus to the element that was focused before the dialog opened.\n     * @private\n     * @return {?}\n     */\n    _restoreFocus() {\n        /** @type {?} */\n        const toFocus = this._elementFocusedBeforeDialogWasOpened;\n        // We need the extra check, because IE can set the `activeElement` to null in some cases.\n        if (this._config.restoreFocus && toFocus && typeof toFocus.focus === 'function') {\n            /** @type {?} */\n            const activeElement = this._document.activeElement;\n            /** @type {?} */\n            const element = this._elementRef.nativeElement;\n            // Make sure that focus is still inside the dialog or is on the body (usually because a\n            // non-focusable element like the backdrop was clicked) before moving it. It's possible that\n            // the consumer moved it themselves before the animation was done, in which case we shouldn't\n            // do anything.\n            if (!activeElement || activeElement === this._document.body || activeElement === element ||\n                element.contains(activeElement)) {\n                toFocus.focus();\n            }\n        }\n        if (this._focusTrap) {\n            this._focusTrap.destroy();\n        }\n    }\n    /**\n     * Sets up the focus trand and saves a reference to the\n     * element that was focused before the dialog was opened.\n     * @private\n     * @return {?}\n     */\n    _setupFocusTrap() {\n        if (!this._focusTrap) {\n            this._focusTrap = this._focusTrapFactory.create(this._elementRef.nativeElement);\n        }\n        if (this._document) {\n            this._elementFocusedBeforeDialogWasOpened = (/** @type {?} */ (this._document.activeElement));\n            // Note that there is no focus method when rendering on the server.\n            if (this._elementRef.nativeElement.focus) {\n                // Move focus onto the dialog immediately in order to prevent the user from accidentally\n                // opening multiple dialogs at the same time. Needs to be async, because the element\n                // may not be focusable immediately.\n                Promise.resolve().then((/**\n                 * @return {?}\n                 */\n                () => this._elementRef.nativeElement.focus()));\n            }\n        }\n    }\n    /**\n     * Returns whether focus is inside the dialog.\n     * @private\n     * @return {?}\n     */\n    _containsFocus() {\n        /** @type {?} */\n        const element = this._elementRef.nativeElement;\n        /** @type {?} */\n        const activeElement = this._document.activeElement;\n        return element === activeElement || element.contains(activeElement);\n    }\n    /**\n     * Callback, invoked whenever an animation on the host completes.\n     * @param {?} event\n     * @return {?}\n     */\n    _onAnimationDone(event) {\n        if (event.toState === 'enter') {\n            this._trapFocus();\n        }\n        else if (event.toState === 'exit') {\n            this._restoreFocus();\n        }\n        this._animationStateChanged.emit(event);\n    }\n    /**\n     * Callback, invoked when an animation on the host starts.\n     * @param {?} event\n     * @return {?}\n     */\n    _onAnimationStart(event) {\n        this._animationStateChanged.emit(event);\n    }\n    /**\n     * Starts the dialog exit animation.\n     * @return {?}\n     */\n    _startExitAnimation() {\n        this._state = 'exit';\n        // Mark the container for check so it can react if the\n        // view container is using OnPush change detection.\n        this._changeDetectorRef.markForCheck();\n    }\n}\nMatDialogContainer.ɵfac = function MatDialogContainer_Factory(t) { return new (t || MatDialogContainer)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusTrapFactory), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(DOCUMENT, 8), ɵngcc0.ɵɵdirectiveInject(MatDialogConfig)); };\nMatDialogContainer.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatDialogContainer, selectors: [[\"mat-dialog-container\"]], viewQuery: function MatDialogContainer_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵstaticViewQuery(CdkPortalOutlet, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._portalOutlet = _t.first);\n    } }, hostAttrs: [\"tabindex\", \"-1\", \"aria-modal\", \"true\", 1, \"mat-dialog-container\"], hostVars: 6, hostBindings: function MatDialogContainer_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵcomponentHostSyntheticListener(\"@dialogContainer.start\", function MatDialogContainer_animation_dialogContainer_start_HostBindingHandler($event) { return ctx._onAnimationStart($event); })(\"@dialogContainer.done\", function MatDialogContainer_animation_dialogContainer_done_HostBindingHandler($event) { return ctx._onAnimationDone($event); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"id\", ctx._id)(\"role\", ctx._config.role)(\"aria-labelledby\", ctx._config.ariaLabel ? null : ctx._ariaLabelledBy)(\"aria-label\", ctx._config.ariaLabel)(\"aria-describedby\", ctx._config.ariaDescribedBy || null);\n        ɵngcc0.ɵɵupdateSyntheticHostBinding(\"@dialogContainer\", ctx._state);\n    } }, features: [ɵngcc0.ɵɵInheritDefinitionFeature], decls: 1, vars: 0, consts: [[\"cdkPortalOutlet\", \"\"]], template: function MatDialogContainer_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵtemplate(0, MatDialogContainer_ng_template_0_Template, 0, 0, \"ng-template\", 0);\n    } }, directives: [ɵngcc2.CdkPortalOutlet], styles: [\".mat-dialog-container{display:block;padding:24px;border-radius:4px;box-sizing:border-box;overflow:auto;outline:0;width:100%;height:100%;min-height:inherit;max-height:inherit}.cdk-high-contrast-active .mat-dialog-container{outline:solid 1px}.mat-dialog-content{display:block;margin:0 -24px;padding:0 24px;max-height:65vh;overflow:auto;-webkit-overflow-scrolling:touch}.mat-dialog-title{margin:0 0 20px;display:block}.mat-dialog-actions{padding:8px 0;display:flex;flex-wrap:wrap;min-height:52px;align-items:center;margin-bottom:-24px}.mat-dialog-actions[align=end]{justify-content:flex-end}.mat-dialog-actions[align=center]{justify-content:center}.mat-dialog-actions .mat-button-base+.mat-button-base,.mat-dialog-actions .mat-mdc-button-base+.mat-mdc-button-base{margin-left:8px}[dir=rtl] .mat-dialog-actions .mat-button-base+.mat-button-base,[dir=rtl] .mat-dialog-actions .mat-mdc-button-base+.mat-mdc-button-base{margin-left:0;margin-right:8px}\\n\"], encapsulation: 2, data: { animation: [matDialogAnimations.dialogContainer] } });\n/** @nocollapse */\nMatDialogContainer.ctorParameters = () => [\n    { type: ElementRef },\n    { type: FocusTrapFactory },\n    { type: ChangeDetectorRef },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },\n    { type: MatDialogConfig }\n];\nMatDialogContainer.propDecorators = {\n    _portalOutlet: [{ type: ViewChild, args: [CdkPortalOutlet, { static: true },] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatDialogContainer, [{\n        type: Component,\n        args: [{\n                selector: 'mat-dialog-container',\n                template: \"<ng-template cdkPortalOutlet></ng-template>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                // Using OnPush for dialogs caused some G3 sync issues. Disabled until we can track them down.\n                // tslint:disable-next-line:validate-decorators\n                changeDetection: ChangeDetectionStrategy.Default,\n                animations: [matDialogAnimations.dialogContainer],\n                host: {\n                    'class': 'mat-dialog-container',\n                    'tabindex': '-1',\n                    'aria-modal': 'true',\n                    '[attr.id]': '_id',\n                    '[attr.role]': '_config.role',\n                    '[attr.aria-labelledby]': '_config.ariaLabel ? null : _ariaLabelledBy',\n                    '[attr.aria-label]': '_config.ariaLabel',\n                    '[attr.aria-describedby]': '_config.ariaDescribedBy || null',\n                    '[@dialogContainer]': '_state',\n                    '(@dialogContainer.start)': '_onAnimationStart($event)',\n                    '(@dialogContainer.done)': '_onAnimationDone($event)'\n                },\n                styles: [\".mat-dialog-container{display:block;padding:24px;border-radius:4px;box-sizing:border-box;overflow:auto;outline:0;width:100%;height:100%;min-height:inherit;max-height:inherit}.cdk-high-contrast-active .mat-dialog-container{outline:solid 1px}.mat-dialog-content{display:block;margin:0 -24px;padding:0 24px;max-height:65vh;overflow:auto;-webkit-overflow-scrolling:touch}.mat-dialog-title{margin:0 0 20px;display:block}.mat-dialog-actions{padding:8px 0;display:flex;flex-wrap:wrap;min-height:52px;align-items:center;margin-bottom:-24px}.mat-dialog-actions[align=end]{justify-content:flex-end}.mat-dialog-actions[align=center]{justify-content:center}.mat-dialog-actions .mat-button-base+.mat-button-base,.mat-dialog-actions .mat-mdc-button-base+.mat-mdc-button-base{margin-left:8px}[dir=rtl] .mat-dialog-actions .mat-button-base+.mat-button-base,[dir=rtl] .mat-dialog-actions .mat-mdc-button-base+.mat-mdc-button-base{margin-left:0;margin-right:8px}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc1.FocusTrapFactory }, { type: ɵngcc0.ChangeDetectorRef }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: MatDialogConfig }]; }, { _portalOutlet: [{\n            type: ViewChild,\n            args: [CdkPortalOutlet, { static: true }]\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogContainer.prototype._document;\n    /**\n     * The portal outlet inside of this container into which the dialog content will be loaded.\n     * @type {?}\n     */\n    MatDialogContainer.prototype._portalOutlet;\n    /**\n     * The class that traps and manages focus within the dialog.\n     * @type {?}\n     * @private\n     */\n    MatDialogContainer.prototype._focusTrap;\n    /**\n     * Element that was focused before the dialog was opened. Save this to restore upon close.\n     * @type {?}\n     * @private\n     */\n    MatDialogContainer.prototype._elementFocusedBeforeDialogWasOpened;\n    /**\n     * State of the dialog animation.\n     * @type {?}\n     */\n    MatDialogContainer.prototype._state;\n    /**\n     * Emits when an animation state changes.\n     * @type {?}\n     */\n    MatDialogContainer.prototype._animationStateChanged;\n    /**\n     * ID of the element that should be considered as the dialog's label.\n     * @type {?}\n     */\n    MatDialogContainer.prototype._ariaLabelledBy;\n    /**\n     * ID for the container DOM element.\n     * @type {?}\n     */\n    MatDialogContainer.prototype._id;\n    /**\n     * Attaches a DOM portal to the dialog container.\n     * \\@param portal Portal to be attached.\n     * @deprecated To be turned into a method.\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     */\n    MatDialogContainer.prototype.attachDomPortal;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogContainer.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogContainer.prototype._focusTrapFactory;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogContainer.prototype._changeDetectorRef;\n    /**\n     * The dialog configuration.\n     * @type {?}\n     */\n    MatDialogContainer.prototype._config;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/dialog-ref.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// TODO(jelbourn): resizing\n// Counter for unique dialog ids.\n/** @type {?} */\nlet uniqueId = 0;\n/** @enum {number} */\nconst MatDialogState = {\n    OPEN: 0, CLOSING: 1, CLOSED: 2,\n};\n/**\n * Reference to a dialog opened via the MatDialog service.\n * @template T, R\n */\nclass MatDialogRef {\n    /**\n     * @param {?} _overlayRef\n     * @param {?} _containerInstance\n     * @param {?=} id\n     */\n    constructor(_overlayRef, _containerInstance, id = `mat-dialog-${uniqueId++}`) {\n        this._overlayRef = _overlayRef;\n        this._containerInstance = _containerInstance;\n        this.id = id;\n        /**\n         * Whether the user is allowed to close the dialog.\n         */\n        this.disableClose = this._containerInstance._config.disableClose;\n        /**\n         * Subject for notifying the user that the dialog has finished opening.\n         */\n        this._afterOpened = new Subject();\n        /**\n         * Subject for notifying the user that the dialog has finished closing.\n         */\n        this._afterClosed = new Subject();\n        /**\n         * Subject for notifying the user that the dialog has started closing.\n         */\n        this._beforeClosed = new Subject();\n        /**\n         * Current state of the dialog.\n         */\n        this._state = 0 /* OPEN */;\n        // Pass the id along to the container.\n        _containerInstance._id = id;\n        // Emit when opening animation completes\n        _containerInstance._animationStateChanged.pipe(filter((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => event.phaseName === 'done' && event.toState === 'enter')), take(1))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._afterOpened.next();\n            this._afterOpened.complete();\n        }));\n        // Dispose overlay when closing animation is complete\n        _containerInstance._animationStateChanged.pipe(filter((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => event.phaseName === 'done' && event.toState === 'exit')), take(1)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            clearTimeout(this._closeFallbackTimeout);\n            this._finishDialogClose();\n        }));\n        _overlayRef.detachments().subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._beforeClosed.next(this._result);\n            this._beforeClosed.complete();\n            this._afterClosed.next(this._result);\n            this._afterClosed.complete();\n            this.componentInstance = (/** @type {?} */ (null));\n            this._overlayRef.dispose();\n        }));\n        _overlayRef.keydownEvents()\n            .pipe(filter((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            return event.keyCode === ESCAPE && !this.disableClose && !hasModifierKey(event);\n        })))\n            .subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            event.preventDefault();\n            this.close();\n        }));\n        _overlayRef.backdropClick().subscribe((/**\n         * @return {?}\n         */\n        () => {\n            if (this.disableClose) {\n                this._containerInstance._recaptureFocus();\n            }\n            else {\n                this.close();\n            }\n        }));\n    }\n    /**\n     * Close the dialog.\n     * @param {?=} dialogResult Optional result to return to the dialog opener.\n     * @return {?}\n     */\n    close(dialogResult) {\n        this._result = dialogResult;\n        // Transition the backdrop in parallel to the dialog.\n        this._containerInstance._animationStateChanged.pipe(filter((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => event.phaseName === 'start')), take(1))\n            .subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this._beforeClosed.next(dialogResult);\n            this._beforeClosed.complete();\n            this._overlayRef.detachBackdrop();\n            // The logic that disposes of the overlay depends on the exit animation completing, however\n            // it isn't guaranteed if the parent view is destroyed while it's running. Add a fallback\n            // timeout which will clean everything up if the animation hasn't fired within the specified\n            // amount of time plus 100ms. We don't need to run this outside the NgZone, because for the\n            // vast majority of cases the timeout will have been cleared before it has the chance to fire.\n            this._closeFallbackTimeout = setTimeout((/**\n             * @return {?}\n             */\n            () => this._finishDialogClose()), event.totalTime + 100);\n        }));\n        this._containerInstance._startExitAnimation();\n        this._state = 1 /* CLOSING */;\n    }\n    /**\n     * Gets an observable that is notified when the dialog is finished opening.\n     * @return {?}\n     */\n    afterOpened() {\n        return this._afterOpened.asObservable();\n    }\n    /**\n     * Gets an observable that is notified when the dialog is finished closing.\n     * @return {?}\n     */\n    afterClosed() {\n        return this._afterClosed.asObservable();\n    }\n    /**\n     * Gets an observable that is notified when the dialog has started closing.\n     * @return {?}\n     */\n    beforeClosed() {\n        return this._beforeClosed.asObservable();\n    }\n    /**\n     * Gets an observable that emits when the overlay's backdrop has been clicked.\n     * @return {?}\n     */\n    backdropClick() {\n        return this._overlayRef.backdropClick();\n    }\n    /**\n     * Gets an observable that emits when keydown events are targeted on the overlay.\n     * @return {?}\n     */\n    keydownEvents() {\n        return this._overlayRef.keydownEvents();\n    }\n    /**\n     * Updates the dialog's position.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} position New dialog position.\n     * @return {THIS}\n     */\n    updatePosition(position) {\n        /** @type {?} */\n        let strategy = (/** @type {?} */ (this))._getPositionStrategy();\n        if (position && (position.left || position.right)) {\n            position.left ? strategy.left(position.left) : strategy.right(position.right);\n        }\n        else {\n            strategy.centerHorizontally();\n        }\n        if (position && (position.top || position.bottom)) {\n            position.top ? strategy.top(position.top) : strategy.bottom(position.bottom);\n        }\n        else {\n            strategy.centerVertically();\n        }\n        (/** @type {?} */ (this))._overlayRef.updatePosition();\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Updates the dialog's width and height.\n     * @template THIS\n     * @this {THIS}\n     * @param {?=} width New width of the dialog.\n     * @param {?=} height New height of the dialog.\n     * @return {THIS}\n     */\n    updateSize(width = '', height = '') {\n        (/** @type {?} */ (this))._getPositionStrategy().width(width).height(height);\n        (/** @type {?} */ (this))._overlayRef.updatePosition();\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Add a CSS class or an array of classes to the overlay pane.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} classes\n     * @return {THIS}\n     */\n    addPanelClass(classes) {\n        (/** @type {?} */ (this))._overlayRef.addPanelClass(classes);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Remove a CSS class or an array of classes from the overlay pane.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} classes\n     * @return {THIS}\n     */\n    removePanelClass(classes) {\n        (/** @type {?} */ (this))._overlayRef.removePanelClass(classes);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Gets the current state of the dialog's lifecycle.\n     * @return {?}\n     */\n    getState() {\n        return this._state;\n    }\n    /**\n     * Finishes the dialog close by updating the state of the dialog\n     * and disposing the overlay.\n     * @private\n     * @return {?}\n     */\n    _finishDialogClose() {\n        this._state = 2 /* CLOSED */;\n        this._overlayRef.dispose();\n    }\n    /**\n     * Fetches the position strategy object from the overlay ref.\n     * @private\n     * @return {?}\n     */\n    _getPositionStrategy() {\n        return (/** @type {?} */ (this._overlayRef.getConfig().positionStrategy));\n    }\n}\nif (false) {\n    /**\n     * The instance of component opened into the dialog.\n     * @type {?}\n     */\n    MatDialogRef.prototype.componentInstance;\n    /**\n     * Whether the user is allowed to close the dialog.\n     * @type {?}\n     */\n    MatDialogRef.prototype.disableClose;\n    /**\n     * Subject for notifying the user that the dialog has finished opening.\n     * @type {?}\n     * @private\n     */\n    MatDialogRef.prototype._afterOpened;\n    /**\n     * Subject for notifying the user that the dialog has finished closing.\n     * @type {?}\n     * @private\n     */\n    MatDialogRef.prototype._afterClosed;\n    /**\n     * Subject for notifying the user that the dialog has started closing.\n     * @type {?}\n     * @private\n     */\n    MatDialogRef.prototype._beforeClosed;\n    /**\n     * Result to be passed to afterClosed.\n     * @type {?}\n     * @private\n     */\n    MatDialogRef.prototype._result;\n    /**\n     * Handle to the timeout that's running as a fallback in case the exit animation doesn't fire.\n     * @type {?}\n     * @private\n     */\n    MatDialogRef.prototype._closeFallbackTimeout;\n    /**\n     * Current state of the dialog.\n     * @type {?}\n     * @private\n     */\n    MatDialogRef.prototype._state;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogRef.prototype._overlayRef;\n    /** @type {?} */\n    MatDialogRef.prototype._containerInstance;\n    /** @type {?} */\n    MatDialogRef.prototype.id;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/dialog.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that can be used to access the data that was passed in to a dialog.\n * @type {?}\n */\nconst MAT_DIALOG_DATA = new InjectionToken('MatDialogData');\n/**\n * Injection token that can be used to specify default dialog options.\n * @type {?}\n */\nconst MAT_DIALOG_DEFAULT_OPTIONS = new InjectionToken('mat-dialog-default-options');\n/**\n * Injection token that determines the scroll handling while the dialog is open.\n * @type {?}\n */\nconst MAT_DIALOG_SCROLL_STRATEGY = new InjectionToken('mat-dialog-scroll-strategy');\n/**\n * \\@docs-private\n * @param {?} overlay\n * @return {?}\n */\nfunction MAT_DIALOG_SCROLL_STRATEGY_FACTORY(overlay) {\n    return (/**\n     * @return {?}\n     */\n    () => overlay.scrollStrategies.block());\n}\n/**\n * \\@docs-private\n * @param {?} overlay\n * @return {?}\n */\nfunction MAT_DIALOG_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay) {\n    return (/**\n     * @return {?}\n     */\n    () => overlay.scrollStrategies.block());\n}\n/**\n * \\@docs-private\n * @type {?}\n */\nconst MAT_DIALOG_SCROLL_STRATEGY_PROVIDER = {\n    provide: MAT_DIALOG_SCROLL_STRATEGY,\n    deps: [Overlay],\n    useFactory: MAT_DIALOG_SCROLL_STRATEGY_PROVIDER_FACTORY,\n};\n/**\n * Service to open Material Design modal dialogs.\n */\nclass MatDialog {\n    /**\n     * @param {?} _overlay\n     * @param {?} _injector\n     * @param {?} _location\n     * @param {?} _defaultOptions\n     * @param {?} scrollStrategy\n     * @param {?} _parentDialog\n     * @param {?} _overlayContainer\n     */\n    constructor(_overlay, _injector, \n    /**\n     * @deprecated `_location` parameter to be removed.\n     * @breaking-change 10.0.0\n     */\n    _location, _defaultOptions, scrollStrategy, _parentDialog, _overlayContainer) {\n        this._overlay = _overlay;\n        this._injector = _injector;\n        this._defaultOptions = _defaultOptions;\n        this._parentDialog = _parentDialog;\n        this._overlayContainer = _overlayContainer;\n        this._openDialogsAtThisLevel = [];\n        this._afterAllClosedAtThisLevel = new Subject();\n        this._afterOpenedAtThisLevel = new Subject();\n        this._ariaHiddenElements = new Map();\n        // TODO (jelbourn): tighten the typing right-hand side of this expression.\n        /**\n         * Stream that emits when all open dialog have finished closing.\n         * Will emit on subscribe if there are no open dialogs to begin with.\n         */\n        this.afterAllClosed = (/** @type {?} */ (defer((/**\n         * @return {?}\n         */\n        () => this.openDialogs.length ?\n            this._afterAllClosed :\n            this._afterAllClosed.pipe(startWith(undefined))))));\n        this._scrollStrategy = scrollStrategy;\n    }\n    /**\n     * Keeps track of the currently-open dialogs.\n     * @return {?}\n     */\n    get openDialogs() {\n        return this._parentDialog ? this._parentDialog.openDialogs : this._openDialogsAtThisLevel;\n    }\n    /**\n     * Stream that emits when a dialog has been opened.\n     * @return {?}\n     */\n    get afterOpened() {\n        return this._parentDialog ? this._parentDialog.afterOpened : this._afterOpenedAtThisLevel;\n    }\n    /**\n     * @return {?}\n     */\n    get _afterAllClosed() {\n        /** @type {?} */\n        const parent = this._parentDialog;\n        return parent ? parent._afterAllClosed : this._afterAllClosedAtThisLevel;\n    }\n    /**\n     * Opens a modal dialog containing the given component.\n     * @template T, D, R\n     * @param {?} componentOrTemplateRef Type of the component to load into the dialog,\n     *     or a TemplateRef to instantiate as the dialog content.\n     * @param {?=} config Extra configuration options.\n     * @return {?} Reference to the newly-opened dialog.\n     */\n    open(componentOrTemplateRef, config) {\n        config = _applyConfigDefaults(config, this._defaultOptions || new MatDialogConfig());\n        if (config.id && this.getDialogById(config.id)) {\n            throw Error(`Dialog with id \"${config.id}\" exists already. The dialog id must be unique.`);\n        }\n        /** @type {?} */\n        const overlayRef = this._createOverlay(config);\n        /** @type {?} */\n        const dialogContainer = this._attachDialogContainer(overlayRef, config);\n        /** @type {?} */\n        const dialogRef = this._attachDialogContent(componentOrTemplateRef, dialogContainer, overlayRef, config);\n        // If this is the first dialog that we're opening, hide all the non-overlay content.\n        if (!this.openDialogs.length) {\n            this._hideNonDialogContentFromAssistiveTechnology();\n        }\n        this.openDialogs.push(dialogRef);\n        dialogRef.afterClosed().subscribe((/**\n         * @return {?}\n         */\n        () => this._removeOpenDialog(dialogRef)));\n        this.afterOpened.next(dialogRef);\n        return dialogRef;\n    }\n    /**\n     * Closes all of the currently-open dialogs.\n     * @return {?}\n     */\n    closeAll() {\n        this._closeDialogs(this.openDialogs);\n    }\n    /**\n     * Finds an open dialog by its id.\n     * @param {?} id ID to use when looking up the dialog.\n     * @return {?}\n     */\n    getDialogById(id) {\n        return this.openDialogs.find((/**\n         * @param {?} dialog\n         * @return {?}\n         */\n        dialog => dialog.id === id));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        // Only close the dialogs at this level on destroy\n        // since the parent service may still be active.\n        this._closeDialogs(this._openDialogsAtThisLevel);\n        this._afterAllClosedAtThisLevel.complete();\n        this._afterOpenedAtThisLevel.complete();\n    }\n    /**\n     * Creates the overlay into which the dialog will be loaded.\n     * @private\n     * @param {?} config The dialog configuration.\n     * @return {?} A promise resolving to the OverlayRef for the created overlay.\n     */\n    _createOverlay(config) {\n        /** @type {?} */\n        const overlayConfig = this._getOverlayConfig(config);\n        return this._overlay.create(overlayConfig);\n    }\n    /**\n     * Creates an overlay config from a dialog config.\n     * @private\n     * @param {?} dialogConfig The dialog configuration.\n     * @return {?} The overlay configuration.\n     */\n    _getOverlayConfig(dialogConfig) {\n        /** @type {?} */\n        const state = new OverlayConfig({\n            positionStrategy: this._overlay.position().global(),\n            scrollStrategy: dialogConfig.scrollStrategy || this._scrollStrategy(),\n            panelClass: dialogConfig.panelClass,\n            hasBackdrop: dialogConfig.hasBackdrop,\n            direction: dialogConfig.direction,\n            minWidth: dialogConfig.minWidth,\n            minHeight: dialogConfig.minHeight,\n            maxWidth: dialogConfig.maxWidth,\n            maxHeight: dialogConfig.maxHeight,\n            disposeOnNavigation: dialogConfig.closeOnNavigation\n        });\n        if (dialogConfig.backdropClass) {\n            state.backdropClass = dialogConfig.backdropClass;\n        }\n        return state;\n    }\n    /**\n     * Attaches an MatDialogContainer to a dialog's already-created overlay.\n     * @private\n     * @param {?} overlay Reference to the dialog's underlying overlay.\n     * @param {?} config The dialog configuration.\n     * @return {?} A promise resolving to a ComponentRef for the attached container.\n     */\n    _attachDialogContainer(overlay, config) {\n        /** @type {?} */\n        const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n        /** @type {?} */\n        const injector = Injector.create({\n            parent: userInjector || this._injector,\n            providers: [{ provide: MatDialogConfig, useValue: config }]\n        });\n        /** @type {?} */\n        const containerPortal = new ComponentPortal(MatDialogContainer, config.viewContainerRef, injector, config.componentFactoryResolver);\n        /** @type {?} */\n        const containerRef = overlay.attach(containerPortal);\n        return containerRef.instance;\n    }\n    /**\n     * Attaches the user-provided component to the already-created MatDialogContainer.\n     * @private\n     * @template T, R\n     * @param {?} componentOrTemplateRef The type of component being loaded into the dialog,\n     *     or a TemplateRef to instantiate as the content.\n     * @param {?} dialogContainer Reference to the wrapping MatDialogContainer.\n     * @param {?} overlayRef Reference to the overlay in which the dialog resides.\n     * @param {?} config The dialog configuration.\n     * @return {?} A promise resolving to the MatDialogRef that should be returned to the user.\n     */\n    _attachDialogContent(componentOrTemplateRef, dialogContainer, overlayRef, config) {\n        // Create a reference to the dialog we're creating in order to give the user a handle\n        // to modify and close it.\n        /** @type {?} */\n        const dialogRef = new MatDialogRef(overlayRef, dialogContainer, config.id);\n        if (componentOrTemplateRef instanceof TemplateRef) {\n            dialogContainer.attachTemplatePortal(new TemplatePortal(componentOrTemplateRef, (/** @type {?} */ (null)), (/** @type {?} */ ({ $implicit: config.data, dialogRef }))));\n        }\n        else {\n            /** @type {?} */\n            const injector = this._createInjector(config, dialogRef, dialogContainer);\n            /** @type {?} */\n            const contentRef = dialogContainer.attachComponentPortal(new ComponentPortal(componentOrTemplateRef, config.viewContainerRef, injector));\n            dialogRef.componentInstance = contentRef.instance;\n        }\n        dialogRef\n            .updateSize(config.width, config.height)\n            .updatePosition(config.position);\n        return dialogRef;\n    }\n    /**\n     * Creates a custom injector to be used inside the dialog. This allows a component loaded inside\n     * of a dialog to close itself and, optionally, to return a value.\n     * @private\n     * @template T\n     * @param {?} config Config object that is used to construct the dialog.\n     * @param {?} dialogRef Reference to the dialog.\n     * @param {?} dialogContainer\n     * @return {?} The custom injector that can be used inside the dialog.\n     */\n    _createInjector(config, dialogRef, dialogContainer) {\n        /** @type {?} */\n        const userInjector = config && config.viewContainerRef && config.viewContainerRef.injector;\n        // The MatDialogContainer is injected in the portal as the MatDialogContainer and the dialog's\n        // content are created out of the same ViewContainerRef and as such, are siblings for injector\n        // purposes. To allow the hierarchy that is expected, the MatDialogContainer is explicitly\n        // added to the injection tokens.\n        /** @type {?} */\n        const providers = [\n            { provide: MatDialogContainer, useValue: dialogContainer },\n            { provide: MAT_DIALOG_DATA, useValue: config.data },\n            { provide: MatDialogRef, useValue: dialogRef }\n        ];\n        if (config.direction &&\n            (!userInjector || !userInjector.get(Directionality, null))) {\n            providers.push({\n                provide: Directionality,\n                useValue: { value: config.direction, change: of() }\n            });\n        }\n        return Injector.create({ parent: userInjector || this._injector, providers });\n    }\n    /**\n     * Removes a dialog from the array of open dialogs.\n     * @private\n     * @param {?} dialogRef Dialog to be removed.\n     * @return {?}\n     */\n    _removeOpenDialog(dialogRef) {\n        /** @type {?} */\n        const index = this.openDialogs.indexOf(dialogRef);\n        if (index > -1) {\n            this.openDialogs.splice(index, 1);\n            // If all the dialogs were closed, remove/restore the `aria-hidden`\n            // to a the siblings and emit to the `afterAllClosed` stream.\n            if (!this.openDialogs.length) {\n                this._ariaHiddenElements.forEach((/**\n                 * @param {?} previousValue\n                 * @param {?} element\n                 * @return {?}\n                 */\n                (previousValue, element) => {\n                    if (previousValue) {\n                        element.setAttribute('aria-hidden', previousValue);\n                    }\n                    else {\n                        element.removeAttribute('aria-hidden');\n                    }\n                }));\n                this._ariaHiddenElements.clear();\n                this._afterAllClosed.next();\n            }\n        }\n    }\n    /**\n     * Hides all of the content that isn't an overlay from assistive technology.\n     * @private\n     * @return {?}\n     */\n    _hideNonDialogContentFromAssistiveTechnology() {\n        /** @type {?} */\n        const overlayContainer = this._overlayContainer.getContainerElement();\n        // Ensure that the overlay container is attached to the DOM.\n        if (overlayContainer.parentElement) {\n            /** @type {?} */\n            const siblings = overlayContainer.parentElement.children;\n            for (let i = siblings.length - 1; i > -1; i--) {\n                /** @type {?} */\n                let sibling = siblings[i];\n                if (sibling !== overlayContainer &&\n                    sibling.nodeName !== 'SCRIPT' &&\n                    sibling.nodeName !== 'STYLE' &&\n                    !sibling.hasAttribute('aria-live')) {\n                    this._ariaHiddenElements.set(sibling, sibling.getAttribute('aria-hidden'));\n                    sibling.setAttribute('aria-hidden', 'true');\n                }\n            }\n        }\n    }\n    /**\n     * Closes all of the dialogs in an array.\n     * @private\n     * @param {?} dialogs\n     * @return {?}\n     */\n    _closeDialogs(dialogs) {\n        /** @type {?} */\n        let i = dialogs.length;\n        while (i--) {\n            // The `_openDialogs` property isn't updated after close until the rxjs subscription\n            // runs on the next microtask, in addition to modifying the array as we're going\n            // through it. We loop through all of them and call close without assuming that\n            // they'll be removed from the list instantaneously.\n            dialogs[i].close();\n        }\n    }\n}\nMatDialog.ɵfac = function MatDialog_Factory(t) { return new (t || MatDialog)(ɵngcc0.ɵɵinject(ɵngcc3.Overlay), ɵngcc0.ɵɵinject(ɵngcc0.Injector), ɵngcc0.ɵɵinject(ɵngcc4.Location, 8), ɵngcc0.ɵɵinject(MAT_DIALOG_DEFAULT_OPTIONS, 8), ɵngcc0.ɵɵinject(MAT_DIALOG_SCROLL_STRATEGY), ɵngcc0.ɵɵinject(MatDialog, 12), ɵngcc0.ɵɵinject(ɵngcc3.OverlayContainer)); };\nMatDialog.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: MatDialog, factory: MatDialog.ɵfac });\n/** @nocollapse */\nMatDialog.ctorParameters = () => [\n    { type: Overlay },\n    { type: Injector },\n    { type: Location, decorators: [{ type: Optional }] },\n    { type: MatDialogConfig, decorators: [{ type: Optional }, { type: Inject, args: [MAT_DIALOG_DEFAULT_OPTIONS,] }] },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_DIALOG_SCROLL_STRATEGY,] }] },\n    { type: MatDialog, decorators: [{ type: Optional }, { type: SkipSelf }] },\n    { type: OverlayContainer }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatDialog, [{\n        type: Injectable\n    }], function () { return [{ type: ɵngcc3.Overlay }, { type: ɵngcc0.Injector }, { type: ɵngcc4.Location, decorators: [{\n                type: Optional\n            }] }, { type: MatDialogConfig, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_DIALOG_DEFAULT_OPTIONS]\n            }] }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_DIALOG_SCROLL_STRATEGY]\n            }] }, { type: MatDialog, decorators: [{\n                type: Optional\n            }, {\n                type: SkipSelf\n            }] }, { type: ɵngcc3.OverlayContainer }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._openDialogsAtThisLevel;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._afterAllClosedAtThisLevel;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._afterOpenedAtThisLevel;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._ariaHiddenElements;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._scrollStrategy;\n    /**\n     * Stream that emits when all open dialog have finished closing.\n     * Will emit on subscribe if there are no open dialogs to begin with.\n     * @type {?}\n     */\n    MatDialog.prototype.afterAllClosed;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._overlay;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._injector;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._defaultOptions;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._parentDialog;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialog.prototype._overlayContainer;\n}\n/**\n * Applies default options to the dialog config.\n * @param {?=} config Config to be modified.\n * @param {?=} defaultOptions Default options provided.\n * @return {?} The new configuration object.\n */\nfunction _applyConfigDefaults(config, defaultOptions) {\n    return Object.assign(Object.assign({}, defaultOptions), config);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/dialog-content-directives.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Counter used to generate unique IDs for dialog elements.\n * @type {?}\n */\nlet dialogElementUid = 0;\n/**\n * Button that will close the current dialog.\n */\nclass MatDialogClose {\n    /**\n     * @param {?} dialogRef\n     * @param {?} _elementRef\n     * @param {?} _dialog\n     */\n    constructor(dialogRef, _elementRef, _dialog) {\n        this.dialogRef = dialogRef;\n        this._elementRef = _elementRef;\n        this._dialog = _dialog;\n        /**\n         * Default to \"button\" to prevents accidental form submits.\n         */\n        this.type = 'button';\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        if (!this.dialogRef) {\n            // When this directive is included in a dialog via TemplateRef (rather than being\n            // in a Component), the DialogRef isn't available via injection because embedded\n            // views cannot be given a custom injector. Instead, we look up the DialogRef by\n            // ID. This must occur in `onInit`, as the ID binding for the dialog container won't\n            // be resolved at constructor time.\n            this.dialogRef = (/** @type {?} */ (getClosestDialog(this._elementRef, this._dialog.openDialogs)));\n        }\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        /** @type {?} */\n        const proxiedChange = changes['_matDialogClose'] || changes['_matDialogCloseResult'];\n        if (proxiedChange) {\n            this.dialogResult = proxiedChange.currentValue;\n        }\n    }\n}\nMatDialogClose.ɵfac = function MatDialogClose_Factory(t) { return new (t || MatDialogClose)(ɵngcc0.ɵɵdirectiveInject(MatDialogRef, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(MatDialog)); };\nMatDialogClose.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatDialogClose, selectors: [[\"\", \"mat-dialog-close\", \"\"], [\"\", \"matDialogClose\", \"\"]], hostVars: 2, hostBindings: function MatDialogClose_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"click\", function MatDialogClose_click_HostBindingHandler() { return ctx.dialogRef.close(ctx.dialogResult); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"aria-label\", ctx.ariaLabel || null)(\"type\", ctx.type);\n    } }, inputs: { type: \"type\", dialogResult: [\"mat-dialog-close\", \"dialogResult\"], ariaLabel: [\"aria-label\", \"ariaLabel\"], _matDialogClose: [\"matDialogClose\", \"_matDialogClose\"] }, exportAs: [\"matDialogClose\"], features: [ɵngcc0.ɵɵNgOnChangesFeature] });\n/** @nocollapse */\nMatDialogClose.ctorParameters = () => [\n    { type: MatDialogRef, decorators: [{ type: Optional }] },\n    { type: ElementRef },\n    { type: MatDialog }\n];\nMatDialogClose.propDecorators = {\n    ariaLabel: [{ type: Input, args: ['aria-label',] }],\n    type: [{ type: Input }],\n    dialogResult: [{ type: Input, args: ['mat-dialog-close',] }],\n    _matDialogClose: [{ type: Input, args: ['matDialogClose',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatDialogClose, [{\n        type: Directive,\n        args: [{\n                selector: '[mat-dialog-close], [matDialogClose]',\n                exportAs: 'matDialogClose',\n                host: {\n                    '(click)': 'dialogRef.close(dialogResult)',\n                    '[attr.aria-label]': 'ariaLabel || null',\n                    '[attr.type]': 'type'\n                }\n            }]\n    }], function () { return [{ type: MatDialogRef, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc0.ElementRef }, { type: MatDialog }]; }, { type: [{\n            type: Input\n        }], dialogResult: [{\n            type: Input,\n            args: ['mat-dialog-close']\n        }], ariaLabel: [{\n            type: Input,\n            args: ['aria-label']\n        }], _matDialogClose: [{\n            type: Input,\n            args: ['matDialogClose']\n        }] }); })();\nif (false) {\n    /**\n     * Screenreader label for the button.\n     * @type {?}\n     */\n    MatDialogClose.prototype.ariaLabel;\n    /**\n     * Default to \"button\" to prevents accidental form submits.\n     * @type {?}\n     */\n    MatDialogClose.prototype.type;\n    /**\n     * Dialog close input.\n     * @type {?}\n     */\n    MatDialogClose.prototype.dialogResult;\n    /** @type {?} */\n    MatDialogClose.prototype._matDialogClose;\n    /** @type {?} */\n    MatDialogClose.prototype.dialogRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogClose.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogClose.prototype._dialog;\n}\n/**\n * Title of a dialog element. Stays fixed to the top of the dialog when scrolling.\n */\nclass MatDialogTitle {\n    /**\n     * @param {?} _dialogRef\n     * @param {?} _elementRef\n     * @param {?} _dialog\n     */\n    constructor(_dialogRef, _elementRef, _dialog) {\n        this._dialogRef = _dialogRef;\n        this._elementRef = _elementRef;\n        this._dialog = _dialog;\n        this.id = `mat-dialog-title-${dialogElementUid++}`;\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        if (!this._dialogRef) {\n            this._dialogRef = (/** @type {?} */ (getClosestDialog(this._elementRef, this._dialog.openDialogs)));\n        }\n        if (this._dialogRef) {\n            Promise.resolve().then((/**\n             * @return {?}\n             */\n            () => {\n                /** @type {?} */\n                const container = this._dialogRef._containerInstance;\n                if (container && !container._ariaLabelledBy) {\n                    container._ariaLabelledBy = this.id;\n                }\n            }));\n        }\n    }\n}\nMatDialogTitle.ɵfac = function MatDialogTitle_Factory(t) { return new (t || MatDialogTitle)(ɵngcc0.ɵɵdirectiveInject(MatDialogRef, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(MatDialog)); };\nMatDialogTitle.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatDialogTitle, selectors: [[\"\", \"mat-dialog-title\", \"\"], [\"\", \"matDialogTitle\", \"\"]], hostAttrs: [1, \"mat-dialog-title\"], hostVars: 1, hostBindings: function MatDialogTitle_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵhostProperty(\"id\", ctx.id);\n    } }, inputs: { id: \"id\" }, exportAs: [\"matDialogTitle\"] });\n/** @nocollapse */\nMatDialogTitle.ctorParameters = () => [\n    { type: MatDialogRef, decorators: [{ type: Optional }] },\n    { type: ElementRef },\n    { type: MatDialog }\n];\nMatDialogTitle.propDecorators = {\n    id: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatDialogTitle, [{\n        type: Directive,\n        args: [{\n                selector: '[mat-dialog-title], [matDialogTitle]',\n                exportAs: 'matDialogTitle',\n                host: {\n                    'class': 'mat-dialog-title',\n                    '[id]': 'id'\n                }\n            }]\n    }], function () { return [{ type: MatDialogRef, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc0.ElementRef }, { type: MatDialog }]; }, { id: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatDialogTitle.prototype.id;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogTitle.prototype._dialogRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogTitle.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatDialogTitle.prototype._dialog;\n}\n/**\n * Scrollable content container of a dialog.\n */\nclass MatDialogContent {\n}\nMatDialogContent.ɵfac = function MatDialogContent_Factory(t) { return new (t || MatDialogContent)(); };\nMatDialogContent.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatDialogContent, selectors: [[\"\", \"mat-dialog-content\", \"\"], [\"mat-dialog-content\"], [\"\", \"matDialogContent\", \"\"]], hostAttrs: [1, \"mat-dialog-content\"] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatDialogContent, [{\n        type: Directive,\n        args: [{\n                selector: `[mat-dialog-content], mat-dialog-content, [matDialogContent]`,\n                host: { 'class': 'mat-dialog-content' }\n            }]\n    }], null, null); })();\n/**\n * Container for the bottom action buttons in a dialog.\n * Stays fixed to the bottom when scrolling.\n */\nclass MatDialogActions {\n}\nMatDialogActions.ɵfac = function MatDialogActions_Factory(t) { return new (t || MatDialogActions)(); };\nMatDialogActions.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatDialogActions, selectors: [[\"\", \"mat-dialog-actions\", \"\"], [\"mat-dialog-actions\"], [\"\", \"matDialogActions\", \"\"]], hostAttrs: [1, \"mat-dialog-actions\"] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatDialogActions, [{\n        type: Directive,\n        args: [{\n                selector: `[mat-dialog-actions], mat-dialog-actions, [matDialogActions]`,\n                host: { 'class': 'mat-dialog-actions' }\n            }]\n    }], null, null); })();\n/**\n * Finds the closest MatDialogRef to an element by looking at the DOM.\n * @param {?} element Element relative to which to look for a dialog.\n * @param {?} openDialogs References to the currently-open dialogs.\n * @return {?}\n */\nfunction getClosestDialog(element, openDialogs) {\n    /** @type {?} */\n    let parent = element.nativeElement.parentElement;\n    while (parent && !parent.classList.contains('mat-dialog-container')) {\n        parent = parent.parentElement;\n    }\n    return parent ? openDialogs.find((/**\n     * @param {?} dialog\n     * @return {?}\n     */\n    dialog => dialog.id === (/** @type {?} */ (parent)).id)) : null;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/dialog-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatDialogModule {\n}\nMatDialogModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatDialogModule });\nMatDialogModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatDialogModule_Factory(t) { return new (t || MatDialogModule)(); }, providers: [\n        MatDialog,\n        MAT_DIALOG_SCROLL_STRATEGY_PROVIDER,\n    ], imports: [[\n            OverlayModule,\n            PortalModule,\n            MatCommonModule,\n        ], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatDialogModule, { declarations: function () { return [MatDialogContainer, MatDialogClose, MatDialogTitle, MatDialogActions, MatDialogContent]; }, imports: function () { return [OverlayModule,\n        PortalModule,\n        MatCommonModule]; }, exports: function () { return [MatDialogContainer, MatDialogClose, MatDialogTitle, MatDialogContent, MatDialogActions, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatDialogModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    OverlayModule,\n                    PortalModule,\n                    MatCommonModule,\n                ],\n                exports: [\n                    MatDialogContainer,\n                    MatDialogClose,\n                    MatDialogTitle,\n                    MatDialogContent,\n                    MatDialogActions,\n                    MatCommonModule,\n                ],\n                declarations: [\n                    MatDialogContainer,\n                    MatDialogClose,\n                    MatDialogTitle,\n                    MatDialogActions,\n                    MatDialogContent,\n                ],\n                providers: [\n                    MatDialog,\n                    MAT_DIALOG_SCROLL_STRATEGY_PROVIDER,\n                ],\n                entryComponents: [MatDialogContainer]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/dialog/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_DIALOG_DATA, MAT_DIALOG_DEFAULT_OPTIONS, MAT_DIALOG_SCROLL_STRATEGY, MAT_DIALOG_SCROLL_STRATEGY_FACTORY, MAT_DIALOG_SCROLL_STRATEGY_PROVIDER, MAT_DIALOG_SCROLL_STRATEGY_PROVIDER_FACTORY, MatDialog, MatDialogActions, MatDialogClose, MatDialogConfig, MatDialogContainer, MatDialogContent, MatDialogModule, MatDialogRef, MatDialogTitle, matDialogAnimations, throwMatDialogContentAlreadyAttachedError };\n\n//# sourceMappingURL=dialog.js.map","import { Subscriber } from '../Subscriber';\nimport { Subscription } from '../Subscription';\nexport function finalize(callback) {\n    return (source) => source.lift(new FinallyOperator(callback));\n}\nclass FinallyOperator {\n    constructor(callback) {\n        this.callback = callback;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new FinallySubscriber(subscriber, this.callback));\n    }\n}\nclass FinallySubscriber extends Subscriber {\n    constructor(destination, callback) {\n        super(destination);\n        this.add(new Subscription(callback));\n    }\n}\n//# sourceMappingURL=finalize.js.map","import { SecurityContext, Injectable, Optional, Inject, ErrorHandler, ɵɵdefineInjectable, ɵɵinject, SkipSelf, InjectionToken, inject, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, Attribute, Input, NgModule } from '@angular/core';\nimport { mixinColor, MatCommonModule } from '@angular/material/core';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { DOCUMENT } from '@angular/common';\nimport { of, throwError, forkJoin, Subscription } from 'rxjs';\nimport { tap, map, catchError, finalize, share, take } from 'rxjs/operators';\nimport { HttpClient } from '@angular/common/http';\nimport { DomSanitizer } from '@angular/platform-browser';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/icon/icon-registry.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Returns an exception to be thrown in the case when attempting to\n * load an icon with a name that cannot be found.\n * \\@docs-private\n * @param {?} iconName\n * @return {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/common/http';\nimport * as ɵngcc2 from '@angular/platform-browser';\n\nconst _c0 = [\"*\"];\nfunction getMatIconNameNotFoundError(iconName) {\n    return Error(`Unable to find icon with the name \"${iconName}\"`);\n}\n/**\n * Returns an exception to be thrown when the consumer attempts to use\n * `<mat-icon>` without including \\@angular/common/http.\n * \\@docs-private\n * @return {?}\n */\nfunction getMatIconNoHttpProviderError() {\n    return Error('Could not find HttpClient provider for use with Angular Material icons. ' +\n        'Please include the HttpClientModule from @angular/common/http in your ' +\n        'app imports.');\n}\n/**\n * Returns an exception to be thrown when a URL couldn't be sanitized.\n * \\@docs-private\n * @param {?} url URL that was attempted to be sanitized.\n * @return {?}\n */\nfunction getMatIconFailedToSanitizeUrlError(url) {\n    return Error(`The URL provided to MatIconRegistry was not trusted as a resource URL ` +\n        `via Angular's DomSanitizer. Attempted URL was \"${url}\".`);\n}\n/**\n * Returns an exception to be thrown when a HTML string couldn't be sanitized.\n * \\@docs-private\n * @param {?} literal HTML that was attempted to be sanitized.\n * @return {?}\n */\nfunction getMatIconFailedToSanitizeLiteralError(literal) {\n    return Error(`The literal provided to MatIconRegistry was not trusted as safe HTML by ` +\n        `Angular's DomSanitizer. Attempted literal was \"${literal}\".`);\n}\n/**\n * Options that can be used to configure how an icon or the icons in an icon set are presented.\n * @record\n */\nfunction IconOptions() { }\nif (false) {\n    /**\n     * View box to set on the icon.\n     * @type {?|undefined}\n     */\n    IconOptions.prototype.viewBox;\n}\n/**\n * Configuration for an icon, including the URL and possibly the cached SVG element.\n * \\@docs-private\n */\nclass SvgIconConfig {\n    /**\n     * @param {?} data\n     * @param {?=} options\n     */\n    constructor(data, options) {\n        this.options = options;\n        // Note that we can't use `instanceof SVGElement` here,\n        // because it'll break during server-side rendering.\n        if (!!((/** @type {?} */ (data))).nodeName) {\n            this.svgElement = (/** @type {?} */ (data));\n        }\n        else {\n            this.url = (/** @type {?} */ (data));\n        }\n    }\n}\nif (false) {\n    /** @type {?} */\n    SvgIconConfig.prototype.url;\n    /** @type {?} */\n    SvgIconConfig.prototype.svgElement;\n    /** @type {?} */\n    SvgIconConfig.prototype.options;\n}\n/**\n * Service to register and display icons used by the `<mat-icon>` component.\n * - Registers icon URLs by namespace and name.\n * - Registers icon set URLs by namespace.\n * - Registers aliases for CSS classes, for use with icon fonts.\n * - Loads icons from URLs and extracts individual icons from icon sets.\n */\nclass MatIconRegistry {\n    /**\n     * @param {?} _httpClient\n     * @param {?} _sanitizer\n     * @param {?} document\n     * @param {?=} _errorHandler\n     */\n    constructor(_httpClient, _sanitizer, document, _errorHandler) {\n        this._httpClient = _httpClient;\n        this._sanitizer = _sanitizer;\n        this._errorHandler = _errorHandler;\n        /**\n         * URLs and cached SVG elements for individual icons. Keys are of the format \"[namespace]:[icon]\".\n         */\n        this._svgIconConfigs = new Map();\n        /**\n         * SvgIconConfig objects and cached SVG elements for icon sets, keyed by namespace.\n         * Multiple icon sets can be registered under the same namespace.\n         */\n        this._iconSetConfigs = new Map();\n        /**\n         * Cache for icons loaded by direct URLs.\n         */\n        this._cachedIconsByUrl = new Map();\n        /**\n         * In-progress icon fetches. Used to coalesce multiple requests to the same URL.\n         */\n        this._inProgressUrlFetches = new Map();\n        /**\n         * Map from font identifiers to their CSS class names. Used for icon fonts.\n         */\n        this._fontCssClassesByAlias = new Map();\n        /**\n         * The CSS class to apply when an `<mat-icon>` component has no icon name, url, or font specified.\n         * The default 'material-icons' value assumes that the material icon font has been loaded as\n         * described at http://google.github.io/material-design-icons/#icon-font-for-the-web\n         */\n        this._defaultFontSetClass = 'material-icons';\n        this._document = document;\n    }\n    /**\n     * Registers an icon by URL in the default namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} iconName Name under which the icon should be registered.\n     * @param {?} url\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIcon(iconName, url, options) {\n        return (/** @type {?} */ (this)).addSvgIconInNamespace('', iconName, url, options);\n    }\n    /**\n     * Registers an icon using an HTML string in the default namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} iconName Name under which the icon should be registered.\n     * @param {?} literal SVG source of the icon.\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIconLiteral(iconName, literal, options) {\n        return (/** @type {?} */ (this)).addSvgIconLiteralInNamespace('', iconName, literal, options);\n    }\n    /**\n     * Registers an icon by URL in the specified namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} namespace Namespace in which the icon should be registered.\n     * @param {?} iconName Name under which the icon should be registered.\n     * @param {?} url\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIconInNamespace(namespace, iconName, url, options) {\n        return (/** @type {?} */ (this))._addSvgIconConfig(namespace, iconName, new SvgIconConfig(url, options));\n    }\n    /**\n     * Registers an icon using an HTML string in the specified namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} namespace Namespace in which the icon should be registered.\n     * @param {?} iconName Name under which the icon should be registered.\n     * @param {?} literal SVG source of the icon.\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIconLiteralInNamespace(namespace, iconName, literal, options) {\n        /** @type {?} */\n        const sanitizedLiteral = (/** @type {?} */ (this))._sanitizer.sanitize(SecurityContext.HTML, literal);\n        if (!sanitizedLiteral) {\n            throw getMatIconFailedToSanitizeLiteralError(literal);\n        }\n        /** @type {?} */\n        const svgElement = (/** @type {?} */ (this))._createSvgElementForSingleIcon(sanitizedLiteral, options);\n        return (/** @type {?} */ (this))._addSvgIconConfig(namespace, iconName, new SvgIconConfig(svgElement, options));\n    }\n    /**\n     * Registers an icon set by URL in the default namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} url\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIconSet(url, options) {\n        return (/** @type {?} */ (this)).addSvgIconSetInNamespace('', url, options);\n    }\n    /**\n     * Registers an icon set using an HTML string in the default namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} literal SVG source of the icon set.\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIconSetLiteral(literal, options) {\n        return (/** @type {?} */ (this)).addSvgIconSetLiteralInNamespace('', literal, options);\n    }\n    /**\n     * Registers an icon set by URL in the specified namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} namespace Namespace in which to register the icon set.\n     * @param {?} url\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIconSetInNamespace(namespace, url, options) {\n        return (/** @type {?} */ (this))._addSvgIconSetConfig(namespace, new SvgIconConfig(url, options));\n    }\n    /**\n     * Registers an icon set using an HTML string in the specified namespace.\n     * @template THIS\n     * @this {THIS}\n     * @param {?} namespace Namespace in which to register the icon set.\n     * @param {?} literal SVG source of the icon set.\n     * @param {?=} options\n     * @return {THIS}\n     */\n    addSvgIconSetLiteralInNamespace(namespace, literal, options) {\n        /** @type {?} */\n        const sanitizedLiteral = (/** @type {?} */ (this))._sanitizer.sanitize(SecurityContext.HTML, literal);\n        if (!sanitizedLiteral) {\n            throw getMatIconFailedToSanitizeLiteralError(literal);\n        }\n        /** @type {?} */\n        const svgElement = (/** @type {?} */ (this))._svgElementFromString(sanitizedLiteral);\n        return (/** @type {?} */ (this))._addSvgIconSetConfig(namespace, new SvgIconConfig(svgElement, options));\n    }\n    /**\n     * Defines an alias for a CSS class name to be used for icon fonts. Creating an matIcon\n     * component with the alias as the fontSet input will cause the class name to be applied\n     * to the `<mat-icon>` element.\n     *\n     * @template THIS\n     * @this {THIS}\n     * @param {?} alias Alias for the font.\n     * @param {?=} className Class name override to be used instead of the alias.\n     * @return {THIS}\n     */\n    registerFontClassAlias(alias, className = alias) {\n        (/** @type {?} */ (this))._fontCssClassesByAlias.set(alias, className);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Returns the CSS class name associated with the alias by a previous call to\n     * registerFontClassAlias. If no CSS class has been associated, returns the alias unmodified.\n     * @param {?} alias\n     * @return {?}\n     */\n    classNameForFontAlias(alias) {\n        return this._fontCssClassesByAlias.get(alias) || alias;\n    }\n    /**\n     * Sets the CSS class name to be used for icon fonts when an `<mat-icon>` component does not\n     * have a fontSet input value, and is not loading an icon by name or URL.\n     *\n     * @template THIS\n     * @this {THIS}\n     * @param {?} className\n     * @return {THIS}\n     */\n    setDefaultFontSetClass(className) {\n        (/** @type {?} */ (this))._defaultFontSetClass = className;\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Returns the CSS class name to be used for icon fonts when an `<mat-icon>` component does not\n     * have a fontSet input value, and is not loading an icon by name or URL.\n     * @return {?}\n     */\n    getDefaultFontSetClass() {\n        return this._defaultFontSetClass;\n    }\n    /**\n     * Returns an Observable that produces the icon (as an `<svg>` DOM element) from the given URL.\n     * The response from the URL may be cached so this will not always cause an HTTP request, but\n     * the produced element will always be a new copy of the originally fetched icon. (That is,\n     * it will not contain any modifications made to elements previously returned).\n     *\n     * @param {?} safeUrl URL from which to fetch the SVG icon.\n     * @return {?}\n     */\n    getSvgIconFromUrl(safeUrl) {\n        /** @type {?} */\n        const url = this._sanitizer.sanitize(SecurityContext.RESOURCE_URL, safeUrl);\n        if (!url) {\n            throw getMatIconFailedToSanitizeUrlError(safeUrl);\n        }\n        /** @type {?} */\n        const cachedIcon = this._cachedIconsByUrl.get(url);\n        if (cachedIcon) {\n            return of(cloneSvg(cachedIcon));\n        }\n        return this._loadSvgIconFromConfig(new SvgIconConfig(safeUrl)).pipe(tap((/**\n         * @param {?} svg\n         * @return {?}\n         */\n        svg => this._cachedIconsByUrl.set((/** @type {?} */ (url)), svg))), map((/**\n         * @param {?} svg\n         * @return {?}\n         */\n        svg => cloneSvg(svg))));\n    }\n    /**\n     * Returns an Observable that produces the icon (as an `<svg>` DOM element) with the given name\n     * and namespace. The icon must have been previously registered with addIcon or addIconSet;\n     * if not, the Observable will throw an error.\n     *\n     * @param {?} name Name of the icon to be retrieved.\n     * @param {?=} namespace Namespace in which to look for the icon.\n     * @return {?}\n     */\n    getNamedSvgIcon(name, namespace = '') {\n        // Return (copy of) cached icon if possible.\n        /** @type {?} */\n        const key = iconKey(namespace, name);\n        /** @type {?} */\n        const config = this._svgIconConfigs.get(key);\n        if (config) {\n            return this._getSvgFromConfig(config);\n        }\n        // See if we have any icon sets registered for the namespace.\n        /** @type {?} */\n        const iconSetConfigs = this._iconSetConfigs.get(namespace);\n        if (iconSetConfigs) {\n            return this._getSvgFromIconSetConfigs(name, iconSetConfigs);\n        }\n        return throwError(getMatIconNameNotFoundError(key));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._svgIconConfigs.clear();\n        this._iconSetConfigs.clear();\n        this._cachedIconsByUrl.clear();\n    }\n    /**\n     * Returns the cached icon for a SvgIconConfig if available, or fetches it from its URL if not.\n     * @private\n     * @param {?} config\n     * @return {?}\n     */\n    _getSvgFromConfig(config) {\n        if (config.svgElement) {\n            // We already have the SVG element for this icon, return a copy.\n            return of(cloneSvg(config.svgElement));\n        }\n        else {\n            // Fetch the icon from the config's URL, cache it, and return a copy.\n            return this._loadSvgIconFromConfig(config).pipe(tap((/**\n             * @param {?} svg\n             * @return {?}\n             */\n            svg => config.svgElement = svg)), map((/**\n             * @param {?} svg\n             * @return {?}\n             */\n            svg => cloneSvg(svg))));\n        }\n    }\n    /**\n     * Attempts to find an icon with the specified name in any of the SVG icon sets.\n     * First searches the available cached icons for a nested element with a matching name, and\n     * if found copies the element to a new `<svg>` element. If not found, fetches all icon sets\n     * that have not been cached, and searches again after all fetches are completed.\n     * The returned Observable produces the SVG element if possible, and throws\n     * an error if no icon with the specified name can be found.\n     * @private\n     * @param {?} name\n     * @param {?} iconSetConfigs\n     * @return {?}\n     */\n    _getSvgFromIconSetConfigs(name, iconSetConfigs) {\n        // For all the icon set SVG elements we've fetched, see if any contain an icon with the\n        // requested name.\n        /** @type {?} */\n        const namedIcon = this._extractIconWithNameFromAnySet(name, iconSetConfigs);\n        if (namedIcon) {\n            // We could cache namedIcon in _svgIconConfigs, but since we have to make a copy every\n            // time anyway, there's probably not much advantage compared to just always extracting\n            // it from the icon set.\n            return of(namedIcon);\n        }\n        // Not found in any cached icon sets. If there are icon sets with URLs that we haven't\n        // fetched, fetch them now and look for iconName in the results.\n        /** @type {?} */\n        const iconSetFetchRequests = iconSetConfigs\n            .filter((/**\n         * @param {?} iconSetConfig\n         * @return {?}\n         */\n        iconSetConfig => !iconSetConfig.svgElement))\n            .map((/**\n         * @param {?} iconSetConfig\n         * @return {?}\n         */\n        iconSetConfig => {\n            return this._loadSvgIconSetFromConfig(iconSetConfig).pipe(catchError((/**\n             * @param {?} err\n             * @return {?}\n             */\n            (err) => {\n                /** @type {?} */\n                const url = this._sanitizer.sanitize(SecurityContext.RESOURCE_URL, iconSetConfig.url);\n                // Swallow errors fetching individual URLs so the\n                // combined Observable won't necessarily fail.\n                /** @type {?} */\n                const errorMessage = `Loading icon set URL: ${url} failed: ${err.message}`;\n                // @breaking-change 9.0.0 _errorHandler parameter to be made required\n                if (this._errorHandler) {\n                    this._errorHandler.handleError(new Error(errorMessage));\n                }\n                else {\n                    console.error(errorMessage);\n                }\n                return of(null);\n            })));\n        }));\n        // Fetch all the icon set URLs. When the requests complete, every IconSet should have a\n        // cached SVG element (unless the request failed), and we can check again for the icon.\n        return forkJoin(iconSetFetchRequests).pipe(map((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const foundIcon = this._extractIconWithNameFromAnySet(name, iconSetConfigs);\n            if (!foundIcon) {\n                throw getMatIconNameNotFoundError(name);\n            }\n            return foundIcon;\n        })));\n    }\n    /**\n     * Searches the cached SVG elements for the given icon sets for a nested icon element whose \"id\"\n     * tag matches the specified name. If found, copies the nested element to a new SVG element and\n     * returns it. Returns null if no matching element is found.\n     * @private\n     * @param {?} iconName\n     * @param {?} iconSetConfigs\n     * @return {?}\n     */\n    _extractIconWithNameFromAnySet(iconName, iconSetConfigs) {\n        // Iterate backwards, so icon sets added later have precedence.\n        for (let i = iconSetConfigs.length - 1; i >= 0; i--) {\n            /** @type {?} */\n            const config = iconSetConfigs[i];\n            if (config.svgElement) {\n                /** @type {?} */\n                const foundIcon = this._extractSvgIconFromSet(config.svgElement, iconName, config.options);\n                if (foundIcon) {\n                    return foundIcon;\n                }\n            }\n        }\n        return null;\n    }\n    /**\n     * Loads the content of the icon URL specified in the SvgIconConfig and creates an SVG element\n     * from it.\n     * @private\n     * @param {?} config\n     * @return {?}\n     */\n    _loadSvgIconFromConfig(config) {\n        return this._fetchUrl(config.url)\n            .pipe(map((/**\n         * @param {?} svgText\n         * @return {?}\n         */\n        svgText => this._createSvgElementForSingleIcon(svgText, config.options))));\n    }\n    /**\n     * Loads the content of the icon set URL specified in the SvgIconConfig and creates an SVG element\n     * from it.\n     * @private\n     * @param {?} config\n     * @return {?}\n     */\n    _loadSvgIconSetFromConfig(config) {\n        // If the SVG for this icon set has already been parsed, do nothing.\n        if (config.svgElement) {\n            return of(config.svgElement);\n        }\n        return this._fetchUrl(config.url).pipe(map((/**\n         * @param {?} svgText\n         * @return {?}\n         */\n        svgText => {\n            // It is possible that the icon set was parsed and cached by an earlier request, so parsing\n            // only needs to occur if the cache is yet unset.\n            if (!config.svgElement) {\n                config.svgElement = this._svgElementFromString(svgText);\n            }\n            return config.svgElement;\n        })));\n    }\n    /**\n     * Creates a DOM element from the given SVG string, and adds default attributes.\n     * @private\n     * @param {?} responseText\n     * @param {?=} options\n     * @return {?}\n     */\n    _createSvgElementForSingleIcon(responseText, options) {\n        /** @type {?} */\n        const svg = this._svgElementFromString(responseText);\n        this._setSvgAttributes(svg, options);\n        return svg;\n    }\n    /**\n     * Searches the cached element of the given SvgIconConfig for a nested icon element whose \"id\"\n     * tag matches the specified name. If found, copies the nested element to a new SVG element and\n     * returns it. Returns null if no matching element is found.\n     * @private\n     * @param {?} iconSet\n     * @param {?} iconName\n     * @param {?=} options\n     * @return {?}\n     */\n    _extractSvgIconFromSet(iconSet, iconName, options) {\n        // Use the `id=\"iconName\"` syntax in order to escape special\n        // characters in the ID (versus using the #iconName syntax).\n        /** @type {?} */\n        const iconSource = iconSet.querySelector(`[id=\"${iconName}\"]`);\n        if (!iconSource) {\n            return null;\n        }\n        // Clone the element and remove the ID to prevent multiple elements from being added\n        // to the page with the same ID.\n        /** @type {?} */\n        const iconElement = (/** @type {?} */ (iconSource.cloneNode(true)));\n        iconElement.removeAttribute('id');\n        // If the icon node is itself an <svg> node, clone and return it directly. If not, set it as\n        // the content of a new <svg> node.\n        if (iconElement.nodeName.toLowerCase() === 'svg') {\n            return this._setSvgAttributes((/** @type {?} */ (iconElement)), options);\n        }\n        // If the node is a <symbol>, it won't be rendered so we have to convert it into <svg>. Note\n        // that the same could be achieved by referring to it via <use href=\"#id\">, however the <use>\n        // tag is problematic on Firefox, because it needs to include the current page path.\n        if (iconElement.nodeName.toLowerCase() === 'symbol') {\n            return this._setSvgAttributes(this._toSvgElement(iconElement), options);\n        }\n        // createElement('SVG') doesn't work as expected; the DOM ends up with\n        // the correct nodes, but the SVG content doesn't render. Instead we\n        // have to create an empty SVG node using innerHTML and append its content.\n        // Elements created using DOMParser.parseFromString have the same problem.\n        // http://stackoverflow.com/questions/23003278/svg-innerhtml-in-firefox-can-not-display\n        /** @type {?} */\n        const svg = this._svgElementFromString('<svg></svg>');\n        // Clone the node so we don't remove it from the parent icon set element.\n        svg.appendChild(iconElement);\n        return this._setSvgAttributes(svg, options);\n    }\n    /**\n     * Creates a DOM element from the given SVG string.\n     * @private\n     * @param {?} str\n     * @return {?}\n     */\n    _svgElementFromString(str) {\n        /** @type {?} */\n        const div = this._document.createElement('DIV');\n        div.innerHTML = str;\n        /** @type {?} */\n        const svg = (/** @type {?} */ (div.querySelector('svg')));\n        if (!svg) {\n            throw Error('<svg> tag not found');\n        }\n        return svg;\n    }\n    /**\n     * Converts an element into an SVG node by cloning all of its children.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _toSvgElement(element) {\n        /** @type {?} */\n        const svg = this._svgElementFromString('<svg></svg>');\n        /** @type {?} */\n        const attributes = element.attributes;\n        // Copy over all the attributes from the `symbol` to the new SVG, except the id.\n        for (let i = 0; i < attributes.length; i++) {\n            const { name, value } = attributes[i];\n            if (name !== 'id') {\n                svg.setAttribute(name, value);\n            }\n        }\n        for (let i = 0; i < element.childNodes.length; i++) {\n            if (element.childNodes[i].nodeType === this._document.ELEMENT_NODE) {\n                svg.appendChild(element.childNodes[i].cloneNode(true));\n            }\n        }\n        return svg;\n    }\n    /**\n     * Sets the default attributes for an SVG element to be used as an icon.\n     * @private\n     * @param {?} svg\n     * @param {?=} options\n     * @return {?}\n     */\n    _setSvgAttributes(svg, options) {\n        svg.setAttribute('fit', '');\n        svg.setAttribute('height', '100%');\n        svg.setAttribute('width', '100%');\n        svg.setAttribute('preserveAspectRatio', 'xMidYMid meet');\n        svg.setAttribute('focusable', 'false'); // Disable IE11 default behavior to make SVGs focusable.\n        if (options && options.viewBox) {\n            svg.setAttribute('viewBox', options.viewBox);\n        }\n        return svg;\n    }\n    /**\n     * Returns an Observable which produces the string contents of the given URL. Results may be\n     * cached, so future calls with the same URL may not cause another HTTP request.\n     * @private\n     * @param {?} safeUrl\n     * @return {?}\n     */\n    _fetchUrl(safeUrl) {\n        if (!this._httpClient) {\n            throw getMatIconNoHttpProviderError();\n        }\n        if (safeUrl == null) {\n            throw Error(`Cannot fetch icon from URL \"${safeUrl}\".`);\n        }\n        /** @type {?} */\n        const url = this._sanitizer.sanitize(SecurityContext.RESOURCE_URL, safeUrl);\n        if (!url) {\n            throw getMatIconFailedToSanitizeUrlError(safeUrl);\n        }\n        // Store in-progress fetches to avoid sending a duplicate request for a URL when there is\n        // already a request in progress for that URL. It's necessary to call share() on the\n        // Observable returned by http.get() so that multiple subscribers don't cause multiple XHRs.\n        /** @type {?} */\n        const inProgressFetch = this._inProgressUrlFetches.get(url);\n        if (inProgressFetch) {\n            return inProgressFetch;\n        }\n        // TODO(jelbourn): for some reason, the `finalize` operator \"loses\" the generic type on the\n        // Observable. Figure out why and fix it.\n        /** @type {?} */\n        const req = this._httpClient.get(url, { responseType: 'text' }).pipe(finalize((/**\n         * @return {?}\n         */\n        () => this._inProgressUrlFetches.delete(url))), share());\n        this._inProgressUrlFetches.set(url, req);\n        return req;\n    }\n    /**\n     * Registers an icon config by name in the specified namespace.\n     * @private\n     * @template THIS\n     * @this {THIS}\n     * @param {?} namespace Namespace in which to register the icon config.\n     * @param {?} iconName Name under which to register the config.\n     * @param {?} config Config to be registered.\n     * @return {THIS}\n     */\n    _addSvgIconConfig(namespace, iconName, config) {\n        (/** @type {?} */ (this))._svgIconConfigs.set(iconKey(namespace, iconName), config);\n        return (/** @type {?} */ (this));\n    }\n    /**\n     * Registers an icon set config in the specified namespace.\n     * @private\n     * @template THIS\n     * @this {THIS}\n     * @param {?} namespace Namespace in which to register the icon config.\n     * @param {?} config Config to be registered.\n     * @return {THIS}\n     */\n    _addSvgIconSetConfig(namespace, config) {\n        /** @type {?} */\n        const configNamespace = (/** @type {?} */ (this))._iconSetConfigs.get(namespace);\n        if (configNamespace) {\n            configNamespace.push(config);\n        }\n        else {\n            (/** @type {?} */ (this))._iconSetConfigs.set(namespace, [config]);\n        }\n        return (/** @type {?} */ (this));\n    }\n}\nMatIconRegistry.ɵfac = function MatIconRegistry_Factory(t) { return new (t || MatIconRegistry)(ɵngcc0.ɵɵinject(ɵngcc1.HttpClient, 8), ɵngcc0.ɵɵinject(ɵngcc2.DomSanitizer), ɵngcc0.ɵɵinject(DOCUMENT, 8), ɵngcc0.ɵɵinject(ɵngcc0.ErrorHandler, 8)); };\n/** @nocollapse */\nMatIconRegistry.ctorParameters = () => [\n    { type: HttpClient, decorators: [{ type: Optional }] },\n    { type: DomSanitizer },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] },\n    { type: ErrorHandler, decorators: [{ type: Optional }] }\n];\n/** @nocollapse */ MatIconRegistry.ɵprov = ɵɵdefineInjectable({ factory: function MatIconRegistry_Factory() { return new MatIconRegistry(ɵɵinject(HttpClient, 8), ɵɵinject(DomSanitizer), ɵɵinject(DOCUMENT, 8), ɵɵinject(ErrorHandler, 8)); }, token: MatIconRegistry, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatIconRegistry, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return [{ type: ɵngcc1.HttpClient, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc2.DomSanitizer }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc0.ErrorHandler, decorators: [{\n                type: Optional\n            }] }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._document;\n    /**\n     * URLs and cached SVG elements for individual icons. Keys are of the format \"[namespace]:[icon]\".\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._svgIconConfigs;\n    /**\n     * SvgIconConfig objects and cached SVG elements for icon sets, keyed by namespace.\n     * Multiple icon sets can be registered under the same namespace.\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._iconSetConfigs;\n    /**\n     * Cache for icons loaded by direct URLs.\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._cachedIconsByUrl;\n    /**\n     * In-progress icon fetches. Used to coalesce multiple requests to the same URL.\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._inProgressUrlFetches;\n    /**\n     * Map from font identifiers to their CSS class names. Used for icon fonts.\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._fontCssClassesByAlias;\n    /**\n     * The CSS class to apply when an `<mat-icon>` component has no icon name, url, or font specified.\n     * The default 'material-icons' value assumes that the material icon font has been loaded as\n     * described at http://google.github.io/material-design-icons/#icon-font-for-the-web\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._defaultFontSetClass;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._httpClient;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._sanitizer;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIconRegistry.prototype._errorHandler;\n}\n/**\n * \\@docs-private\n * @param {?} parentRegistry\n * @param {?} httpClient\n * @param {?} sanitizer\n * @param {?=} document\n * @param {?=} errorHandler\n * @return {?}\n */\nfunction ICON_REGISTRY_PROVIDER_FACTORY(parentRegistry, httpClient, sanitizer, document, errorHandler) {\n    return parentRegistry || new MatIconRegistry(httpClient, sanitizer, document, errorHandler);\n}\n/**\n * \\@docs-private\n * @type {?}\n */\nconst ICON_REGISTRY_PROVIDER = {\n    // If there is already an MatIconRegistry available, use that. Otherwise, provide a new one.\n    provide: MatIconRegistry,\n    deps: [\n        [new Optional(), new SkipSelf(), MatIconRegistry],\n        [new Optional(), HttpClient],\n        DomSanitizer,\n        [new Optional(), ErrorHandler],\n        [new Optional(), (/** @type {?} */ (DOCUMENT))],\n    ],\n    useFactory: ICON_REGISTRY_PROVIDER_FACTORY,\n};\n/**\n * Clones an SVGElement while preserving type information.\n * @param {?} svg\n * @return {?}\n */\nfunction cloneSvg(svg) {\n    return (/** @type {?} */ (svg.cloneNode(true)));\n}\n/**\n * Returns the cache key to use for an icon namespace and name.\n * @param {?} namespace\n * @param {?} name\n * @return {?}\n */\nfunction iconKey(namespace, name) {\n    return namespace + ':' + name;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/icon/icon.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Boilerplate for applying mixins to MatIcon.\n/**\n * \\@docs-private\n */\nclass MatIconBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatIconBase.prototype._elementRef;\n}\n/** @type {?} */\nconst _MatIconMixinBase = mixinColor(MatIconBase);\n/**\n * Injection token used to provide the current location to `MatIcon`.\n * Used to handle server-side rendering and to stub out during unit tests.\n * \\@docs-private\n * @type {?}\n */\nconst MAT_ICON_LOCATION = new InjectionToken('mat-icon-location', {\n    providedIn: 'root',\n    factory: MAT_ICON_LOCATION_FACTORY\n});\n/**\n * Stubbed out location for `MatIcon`.\n * \\@docs-private\n * @record\n */\nfunction MatIconLocation() { }\nif (false) {\n    /** @type {?} */\n    MatIconLocation.prototype.getPathname;\n}\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MAT_ICON_LOCATION_FACTORY() {\n    /** @type {?} */\n    const _document = inject(DOCUMENT);\n    /** @type {?} */\n    const _location = _document ? _document.location : null;\n    return {\n        // Note that this needs to be a function, rather than a property, because Angular\n        // will only resolve it once, but we want the current path on each call.\n        getPathname: (/**\n         * @return {?}\n         */\n        () => _location ? (_location.pathname + _location.search) : '')\n    };\n}\n/**\n * SVG attributes that accept a FuncIRI (e.g. `url(<something>)`).\n * @type {?}\n */\nconst funcIriAttributes = [\n    'clip-path',\n    'color-profile',\n    'src',\n    'cursor',\n    'fill',\n    'filter',\n    'marker',\n    'marker-start',\n    'marker-mid',\n    'marker-end',\n    'mask',\n    'stroke'\n];\nconst ɵ0 = /**\n * @param {?} attr\n * @return {?}\n */\nattr => `[${attr}]`;\n/**\n * Selector that can be used to find all elements that are using a `FuncIRI`.\n * @type {?}\n */\nconst funcIriAttributeSelector = funcIriAttributes.map((ɵ0)).join(', ');\n/**\n * Regex that can be used to extract the id out of a FuncIRI.\n * @type {?}\n */\nconst funcIriPattern = /^url\\(['\"]?#(.*?)['\"]?\\)$/;\n/**\n * Component to display an icon. It can be used in the following ways:\n *\n * - Specify the svgIcon input to load an SVG icon from a URL previously registered with the\n *   addSvgIcon, addSvgIconInNamespace, addSvgIconSet, or addSvgIconSetInNamespace methods of\n *   MatIconRegistry. If the svgIcon value contains a colon it is assumed to be in the format\n *   \"[namespace]:[name]\", if not the value will be the name of an icon in the default namespace.\n *   Examples:\n *     `<mat-icon svgIcon=\"left-arrow\"></mat-icon>\n *     <mat-icon svgIcon=\"animals:cat\"></mat-icon>`\n *\n * - Use a font ligature as an icon by putting the ligature text in the content of the `<mat-icon>`\n *   component. By default the Material icons font is used as described at\n *   http://google.github.io/material-design-icons/#icon-font-for-the-web. You can specify an\n *   alternate font by setting the fontSet input to either the CSS class to apply to use the\n *   desired font, or to an alias previously registered with MatIconRegistry.registerFontClassAlias.\n *   Examples:\n *     `<mat-icon>home</mat-icon>\n *     <mat-icon fontSet=\"myfont\">sun</mat-icon>`\n *\n * - Specify a font glyph to be included via CSS rules by setting the fontSet input to specify the\n *   font, and the fontIcon input to specify the icon. Typically the fontIcon will specify a\n *   CSS class which causes the glyph to be displayed via a :before selector, as in\n *   https://fortawesome.github.io/Font-Awesome/examples/\n *   Example:\n *     `<mat-icon fontSet=\"fa\" fontIcon=\"alarm\"></mat-icon>`\n */\nclass MatIcon extends _MatIconMixinBase {\n    /**\n     * @param {?} elementRef\n     * @param {?} _iconRegistry\n     * @param {?} ariaHidden\n     * @param {?=} _location\n     * @param {?=} _errorHandler\n     */\n    constructor(elementRef, _iconRegistry, ariaHidden, _location, _errorHandler) {\n        super(elementRef);\n        this._iconRegistry = _iconRegistry;\n        this._location = _location;\n        this._errorHandler = _errorHandler;\n        this._inline = false;\n        /**\n         * Subscription to the current in-progress SVG icon request.\n         */\n        this._currentIconFetch = Subscription.EMPTY;\n        // If the user has not explicitly set aria-hidden, mark the icon as hidden, as this is\n        // the right thing to do for the majority of icon use-cases.\n        if (!ariaHidden) {\n            elementRef.nativeElement.setAttribute('aria-hidden', 'true');\n        }\n    }\n    /**\n     * Whether the icon should be inlined, automatically sizing the icon to match the font size of\n     * the element the icon is contained in.\n     * @return {?}\n     */\n    get inline() {\n        return this._inline;\n    }\n    /**\n     * @param {?} inline\n     * @return {?}\n     */\n    set inline(inline) {\n        this._inline = coerceBooleanProperty(inline);\n    }\n    /**\n     * Font set that the icon is a part of.\n     * @return {?}\n     */\n    get fontSet() { return this._fontSet; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set fontSet(value) {\n        this._fontSet = this._cleanupFontValue(value);\n    }\n    /**\n     * Name of an icon within a font set.\n     * @return {?}\n     */\n    get fontIcon() { return this._fontIcon; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set fontIcon(value) {\n        this._fontIcon = this._cleanupFontValue(value);\n    }\n    /**\n     * Splits an svgIcon binding value into its icon set and icon name components.\n     * Returns a 2-element array of [(icon set), (icon name)].\n     * The separator for the two fields is ':'. If there is no separator, an empty\n     * string is returned for the icon set and the entire value is returned for\n     * the icon name. If the argument is falsy, returns an array of two empty strings.\n     * Throws an error if the name contains two or more ':' separators.\n     * Examples:\n     *   `'social:cake' -> ['social', 'cake']\n     *   'penguin' -> ['', 'penguin']\n     *   null -> ['', '']\n     *   'a:b:c' -> (throws Error)`\n     * @private\n     * @param {?} iconName\n     * @return {?}\n     */\n    _splitIconName(iconName) {\n        if (!iconName) {\n            return ['', ''];\n        }\n        /** @type {?} */\n        const parts = iconName.split(':');\n        switch (parts.length) {\n            case 1: return ['', parts[0]]; // Use default namespace.\n            case 2: return (/** @type {?} */ (parts));\n            default: throw Error(`Invalid icon name: \"${iconName}\"`);\n        }\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        // Only update the inline SVG icon if the inputs changed, to avoid unnecessary DOM operations.\n        /** @type {?} */\n        const svgIconChanges = changes['svgIcon'];\n        if (svgIconChanges) {\n            this._currentIconFetch.unsubscribe();\n            if (this.svgIcon) {\n                const [namespace, iconName] = this._splitIconName(this.svgIcon);\n                this._currentIconFetch = this._iconRegistry.getNamedSvgIcon(iconName, namespace)\n                    .pipe(take(1))\n                    .subscribe((/**\n                 * @param {?} svg\n                 * @return {?}\n                 */\n                svg => this._setSvgElement(svg)), (/**\n                 * @param {?} err\n                 * @return {?}\n                 */\n                (err) => {\n                    /** @type {?} */\n                    const errorMessage = `Error retrieving icon ${namespace}:${iconName}! ${err.message}`;\n                    // @breaking-change 9.0.0 _errorHandler parameter to be made required.\n                    if (this._errorHandler) {\n                        this._errorHandler.handleError(new Error(errorMessage));\n                    }\n                    else {\n                        console.error(errorMessage);\n                    }\n                }));\n            }\n            else if (svgIconChanges.previousValue) {\n                this._clearSvgElement();\n            }\n        }\n        if (this._usingFontIcon()) {\n            this._updateFontIconClasses();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        // Update font classes because ngOnChanges won't be called if none of the inputs are present,\n        // e.g. <mat-icon>arrow</mat-icon> In this case we need to add a CSS class for the default font.\n        if (this._usingFontIcon()) {\n            this._updateFontIconClasses();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterViewChecked() {\n        /** @type {?} */\n        const cachedElements = this._elementsWithExternalReferences;\n        if (cachedElements && this._location && cachedElements.size) {\n            /** @type {?} */\n            const newPath = this._location.getPathname();\n            // We need to check whether the URL has changed on each change detection since\n            // the browser doesn't have an API that will let us react on link clicks and\n            // we can't depend on the Angular router. The references need to be updated,\n            // because while most browsers don't care whether the URL is correct after\n            // the first render, Safari will break if the user navigates to a different\n            // page and the SVG isn't re-rendered.\n            if (newPath !== this._previousPath) {\n                this._previousPath = newPath;\n                this._prependPathToReferences(newPath);\n            }\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._currentIconFetch.unsubscribe();\n        if (this._elementsWithExternalReferences) {\n            this._elementsWithExternalReferences.clear();\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _usingFontIcon() {\n        return !this.svgIcon;\n    }\n    /**\n     * @private\n     * @param {?} svg\n     * @return {?}\n     */\n    _setSvgElement(svg) {\n        this._clearSvgElement();\n        // Workaround for IE11 and Edge ignoring `style` tags inside dynamically-created SVGs.\n        // See: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10898469/\n        // Do this before inserting the element into the DOM, in order to avoid a style recalculation.\n        /** @type {?} */\n        const styleTags = (/** @type {?} */ (svg.querySelectorAll('style')));\n        for (let i = 0; i < styleTags.length; i++) {\n            styleTags[i].textContent += ' ';\n        }\n        // Note: we do this fix here, rather than the icon registry, because the\n        // references have to point to the URL at the time that the icon was created.\n        if (this._location) {\n            /** @type {?} */\n            const path = this._location.getPathname();\n            this._previousPath = path;\n            this._cacheChildrenWithExternalReferences(svg);\n            this._prependPathToReferences(path);\n        }\n        this._elementRef.nativeElement.appendChild(svg);\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _clearSvgElement() {\n        /** @type {?} */\n        const layoutElement = this._elementRef.nativeElement;\n        /** @type {?} */\n        let childCount = layoutElement.childNodes.length;\n        if (this._elementsWithExternalReferences) {\n            this._elementsWithExternalReferences.clear();\n        }\n        // Remove existing non-element child nodes and SVGs, and add the new SVG element. Note that\n        // we can't use innerHTML, because IE will throw if the element has a data binding.\n        while (childCount--) {\n            /** @type {?} */\n            const child = layoutElement.childNodes[childCount];\n            // 1 corresponds to Node.ELEMENT_NODE. We remove all non-element nodes in order to get rid\n            // of any loose text nodes, as well as any SVG elements in order to remove any old icons.\n            if (child.nodeType !== 1 || child.nodeName.toLowerCase() === 'svg') {\n                layoutElement.removeChild(child);\n            }\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _updateFontIconClasses() {\n        if (!this._usingFontIcon()) {\n            return;\n        }\n        /** @type {?} */\n        const elem = this._elementRef.nativeElement;\n        /** @type {?} */\n        const fontSetClass = this.fontSet ?\n            this._iconRegistry.classNameForFontAlias(this.fontSet) :\n            this._iconRegistry.getDefaultFontSetClass();\n        if (fontSetClass != this._previousFontSetClass) {\n            if (this._previousFontSetClass) {\n                elem.classList.remove(this._previousFontSetClass);\n            }\n            if (fontSetClass) {\n                elem.classList.add(fontSetClass);\n            }\n            this._previousFontSetClass = fontSetClass;\n        }\n        if (this.fontIcon != this._previousFontIconClass) {\n            if (this._previousFontIconClass) {\n                elem.classList.remove(this._previousFontIconClass);\n            }\n            if (this.fontIcon) {\n                elem.classList.add(this.fontIcon);\n            }\n            this._previousFontIconClass = this.fontIcon;\n        }\n    }\n    /**\n     * Cleans up a value to be used as a fontIcon or fontSet.\n     * Since the value ends up being assigned as a CSS class, we\n     * have to trim the value and omit space-separated values.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _cleanupFontValue(value) {\n        return typeof value === 'string' ? value.trim().split(' ')[0] : value;\n    }\n    /**\n     * Prepends the current path to all elements that have an attribute pointing to a `FuncIRI`\n     * reference. This is required because WebKit browsers require references to be prefixed with\n     * the current path, if the page has a `base` tag.\n     * @private\n     * @param {?} path\n     * @return {?}\n     */\n    _prependPathToReferences(path) {\n        /** @type {?} */\n        const elements = this._elementsWithExternalReferences;\n        if (elements) {\n            elements.forEach((/**\n             * @param {?} attrs\n             * @param {?} element\n             * @return {?}\n             */\n            (attrs, element) => {\n                attrs.forEach((/**\n                 * @param {?} attr\n                 * @return {?}\n                 */\n                attr => {\n                    element.setAttribute(attr.name, `url('${path}#${attr.value}')`);\n                }));\n            }));\n        }\n    }\n    /**\n     * Caches the children of an SVG element that have `url()`\n     * references that we need to prefix with the current path.\n     * @private\n     * @param {?} element\n     * @return {?}\n     */\n    _cacheChildrenWithExternalReferences(element) {\n        /** @type {?} */\n        const elementsWithFuncIri = element.querySelectorAll(funcIriAttributeSelector);\n        /** @type {?} */\n        const elements = this._elementsWithExternalReferences =\n            this._elementsWithExternalReferences || new Map();\n        for (let i = 0; i < elementsWithFuncIri.length; i++) {\n            funcIriAttributes.forEach((/**\n             * @param {?} attr\n             * @return {?}\n             */\n            attr => {\n                /** @type {?} */\n                const elementWithReference = elementsWithFuncIri[i];\n                /** @type {?} */\n                const value = elementWithReference.getAttribute(attr);\n                /** @type {?} */\n                const match = value ? value.match(funcIriPattern) : null;\n                if (match) {\n                    /** @type {?} */\n                    let attributes = elements.get(elementWithReference);\n                    if (!attributes) {\n                        attributes = [];\n                        elements.set(elementWithReference, attributes);\n                    }\n                    (/** @type {?} */ (attributes)).push({ name: attr, value: match[1] });\n                }\n            }));\n        }\n    }\n}\nMatIcon.ɵfac = function MatIcon_Factory(t) { return new (t || MatIcon)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(MatIconRegistry), ɵngcc0.ɵɵinjectAttribute('aria-hidden'), ɵngcc0.ɵɵdirectiveInject(MAT_ICON_LOCATION, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ErrorHandler, 8)); };\nMatIcon.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatIcon, selectors: [[\"mat-icon\"]], hostAttrs: [\"role\", \"img\", 1, \"mat-icon\", \"notranslate\"], hostVars: 4, hostBindings: function MatIcon_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"mat-icon-inline\", ctx.inline)(\"mat-icon-no-color\", ctx.color !== \"primary\" && ctx.color !== \"accent\" && ctx.color !== \"warn\");\n    } }, inputs: { color: \"color\", inline: \"inline\", fontSet: \"fontSet\", fontIcon: \"fontIcon\", svgIcon: \"svgIcon\" }, exportAs: [\"matIcon\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature, ɵngcc0.ɵɵNgOnChangesFeature], ngContentSelectors: _c0, decls: 1, vars: 0, template: function MatIcon_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵprojection(0);\n    } }, styles: [\".mat-icon{background-repeat:no-repeat;display:inline-block;fill:currentColor;height:24px;width:24px}.mat-icon.mat-icon-inline{font-size:inherit;height:inherit;line-height:inherit;width:inherit}[dir=rtl] .mat-icon-rtl-mirror{transform:scale(-1, 1)}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon{display:block}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button .mat-icon{margin:auto}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatIcon.ctorParameters = () => [\n    { type: ElementRef },\n    { type: MatIconRegistry },\n    { type: String, decorators: [{ type: Attribute, args: ['aria-hidden',] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_ICON_LOCATION,] }] },\n    { type: ErrorHandler, decorators: [{ type: Optional }] }\n];\nMatIcon.propDecorators = {\n    inline: [{ type: Input }],\n    svgIcon: [{ type: Input }],\n    fontSet: [{ type: Input }],\n    fontIcon: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatIcon, [{\n        type: Component,\n        args: [{\n                template: '<ng-content></ng-content>',\n                selector: 'mat-icon',\n                exportAs: 'matIcon',\n                inputs: ['color'],\n                host: {\n                    'role': 'img',\n                    'class': 'mat-icon notranslate',\n                    '[class.mat-icon-inline]': 'inline',\n                    '[class.mat-icon-no-color]': 'color !== \"primary\" && color !== \"accent\" && color !== \"warn\"'\n                },\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\".mat-icon{background-repeat:no-repeat;display:inline-block;fill:currentColor;height:24px;width:24px}.mat-icon.mat-icon-inline{font-size:inherit;height:inherit;line-height:inherit;width:inherit}[dir=rtl] .mat-icon-rtl-mirror{transform:scale(-1, 1)}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon{display:block}.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-prefix .mat-icon-button .mat-icon,.mat-form-field:not(.mat-form-field-appearance-legacy) .mat-form-field-suffix .mat-icon-button .mat-icon{margin:auto}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: MatIconRegistry }, { type: String, decorators: [{\n                type: Attribute,\n                args: ['aria-hidden']\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_ICON_LOCATION]\n            }] }, { type: ɵngcc0.ErrorHandler, decorators: [{\n                type: Optional\n            }] }]; }, { inline: [{\n            type: Input\n        }], fontSet: [{\n            type: Input\n        }], fontIcon: [{\n            type: Input\n        }], svgIcon: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatIcon.ngAcceptInputType_inline;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._inline;\n    /**\n     * Name of the icon in the SVG icon set.\n     * @type {?}\n     */\n    MatIcon.prototype.svgIcon;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._fontSet;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._fontIcon;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._previousFontSetClass;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._previousFontIconClass;\n    /**\n     * Keeps track of the current page path.\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._previousPath;\n    /**\n     * Keeps track of the elements and attributes that we've prefixed with the current path.\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._elementsWithExternalReferences;\n    /**\n     * Subscription to the current in-progress SVG icon request.\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._currentIconFetch;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._iconRegistry;\n    /**\n     * @deprecated `location` parameter to be made required.\n     * \\@breaking-change 8.0.0\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._location;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatIcon.prototype._errorHandler;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/icon/icon-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatIconModule {\n}\nMatIconModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatIconModule });\nMatIconModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatIconModule_Factory(t) { return new (t || MatIconModule)(); }, imports: [[MatCommonModule], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatIconModule, { declarations: function () { return [MatIcon]; }, imports: function () { return [MatCommonModule]; }, exports: function () { return [MatIcon, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatIconModule, [{\n        type: NgModule,\n        args: [{\n                imports: [MatCommonModule],\n                exports: [MatIcon, MatCommonModule],\n                declarations: [MatIcon]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/icon/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { ICON_REGISTRY_PROVIDER, ICON_REGISTRY_PROVIDER_FACTORY, MAT_ICON_LOCATION, MAT_ICON_LOCATION_FACTORY, MatIcon, MatIconModule, MatIconRegistry, getMatIconFailedToSanitizeLiteralError, getMatIconFailedToSanitizeUrlError, getMatIconNameNotFoundError, getMatIconNoHttpProviderError };\n\n//# sourceMappingURL=icon.js.map","<div class=\"header\">\n    <div class=\"name\" trans>Objects</div>\n    <button class=\"close-button\" mat-icon-button (click)=\"panelRef.close()\">\n        <mat-icon svgIcon=\"close\"></mat-icon>\n    </button>\n</div>\n<div class=\"items-list\" customScrollbar cdkDropList (cdkDropListDropped)=\"reorderObjects($event)\">\n    <div\n            class=\"reorder-item-wrapper drag-item\"\n            *ngFor=\"let object of objects.getAll()\"\n            cdkDrag\n            [cdkDragData]=\"object.data.id\"\n            cdkDragBoundary=\".items-list\"\n            cdkDragLockAxis=\"y\"\n            [cdkDragDisabled]=\"shouldDisableObject(object)\"\n    >\n        <div class=\"floating-panel-item\"\n             (click)=\"selectObject(object)\"\n             [class.disabled]=\"shouldDisableObject(object)\"\n             [class.active]=\"(activeObjId$ | async) === object.data.id\"\n             [attr.data-id]=\"object.data.id\"\n        >\n            <mat-icon [svgIcon]=\"getIcon(object)\" class=\"list-icon\"></mat-icon>\n            <div class=\"name\" trans>{{getObjectDisplayName(object)}}</div>\n            <div class=\"drag-preview\" *cdkDragPreview></div>\n            <div class=\"drag-placeholder\" *cdkDragPlaceholder>\n                <div class=\"placeholder-inner\"></div>\n            </div>\n        </div>\n    </div>\n</div>","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {ObjectListService} from '../../../image-editor/objects/object-list.service';\nimport {OverlayPanelRef} from 'common/core/ui/overlay-panel/overlay-panel-ref';\nimport {Object} from 'fabric/fabric-impl';\nimport {EditorControlsService} from '../../toolbar-controls/editor-controls.service';\nimport {CdkDragDrop, moveItemInArray} from '@angular/cdk/drag-drop';\nimport {CanvasStateService} from '../../../image-editor/canvas/canvas-state.service';\nimport {Select, Store} from '@ngxs/store';\nimport {EditorState} from '../../../image-editor/state/editor-state';\nimport {OpenPanel} from '../../../image-editor/state/editor-state-actions';\nimport {DrawerName} from '../../toolbar-controls/drawers/drawer-name.enum';\nimport {ObjectNames} from '../../../image-editor/objects/object-names.enum';\nimport {Observable} from 'rxjs';\nimport {matDialogAnimations} from '@angular/material/dialog';\n\n@Component({\n    selector: 'objects-panel',\n    templateUrl: './objects-panel.component.html',\n    styleUrls: ['./objects-panel.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None,\n    host: {\n        '[@dialogContainer]': `'enter'`,\n        '[class.floating-panel]': 'true',\n    },\n    animations: [\n        matDialogAnimations.dialogContainer,\n    ]\n})\nexport class ObjectsPanelComponent {\n    @Select(EditorState.activeObjId) activeObjId$: Observable<string>;\n\n    constructor(\n        public objects: ObjectListService,\n        public panelRef: OverlayPanelRef,\n        private controls: EditorControlsService,\n        private canvasState: CanvasStateService,\n        private store: Store,\n    ) {}\n\n    public getIcon(object: Object): string {\n        return ObjectNames[object.name].icon;\n    }\n\n    public selectObject(object: Object) {\n        this.objects.select(object);\n        if ( ! this.store.selectSnapshot(EditorState.dirty)) {\n            this.store.dispatch(new OpenPanel(DrawerName.OBJECT_SETTINGS));\n        }\n    }\n\n    public getObjectDisplayName(object: Object): string {\n        const name = object['displayName'] || object.name;\n        return name ? name.replace(/([A-Z])/g, ' $1') : '';\n    }\n\n    public reorderObjects(e: CdkDragDrop<string>) {\n        moveItemInArray(this.objects.getAll(), e.previousIndex, e.currentIndex);\n\n        // pixie and canvas object orders are reversed, need to\n        // reverse newIndex given by cdk drag and drop\n        const index = this.objects.getAll()\n            .slice().reverse().findIndex(obj => obj.data.id === e.item.data);\n\n        this.objects.getById(e.item.data).moveTo(index);\n        this.canvasState.fabric.requestRenderAll();\n    }\n\n    public shouldDisableObject(object: Object): boolean {\n        return !object.selectable && object.name !== ObjectNames.drawing.name;\n    }\n}\n","<div class=\"header\">\n    <div class=\"name\" trans>History</div>\n    <button class=\"close-button\" mat-icon-button (click)=\"panelRef.close()\">\n        <mat-icon svgIcon=\"close\"></mat-icon>\n    </button>\n</div>\n<div class=\"items-list\" *ngIf=\"activeItemId$ | async as itemId\" customScrollbar>\n    <div class=\"floating-panel-item\" *ngFor=\"let item of items$ | async;\" (click)=\"loadHistoryState(item)\" [class.active]=\"item.id === itemId\">\n        <mat-icon [svgIcon]=\"item.icon\" class=\"list-icon\"></mat-icon>\n        <div class=\"name\" trans>{{item.name}}</div>\n    </div>\n</div>","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\nimport {HistoryItem} from '../../../image-editor/history/history-item.interface';\nimport {OverlayPanelRef} from 'common/core/ui/overlay-panel/overlay-panel-ref';\nimport {Select} from '@ngxs/store';\nimport {HistoryState} from '../../state/history/history.state';\nimport {Observable} from 'rxjs';\nimport {matDialogAnimations} from '@angular/material/dialog';\n\n@Component({\n    selector: 'history-panel',\n    templateUrl: './history-panel.component.html',\n    styleUrls: ['./history-panel.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None,\n    host: {\n        '[@dialogContainer]': `'enter'`,\n        '[class.floating-panel]': 'true',\n    },\n    animations: [\n        matDialogAnimations.dialogContainer,\n    ]\n})\nexport class HistoryPanelComponent {\n    @Select(HistoryState.items) items$: Observable<HistoryItem[]>;\n    @Select(HistoryState.activeItemId) activeItemId$: Observable<string>;\n\n    constructor(\n        public history: HistoryToolService,\n        public panelRef: OverlayPanelRef,\n    ) {}\n\n    public loadHistoryState(item: HistoryItem) {\n        return this.history.load(item);\n    }\n}\n","import { InjectionToken, forwardRef, EventEmitter, Directive, ChangeDetectorRef, Output, ContentChildren, Input, Optional, ElementRef, Inject, ViewChild, Component, ViewEncapsulation, ChangeDetectionStrategy, NgModule } from '@angular/core';\nimport { mixinDisableRipple, mixinTabIndex, MatRippleModule, MatCommonModule } from '@angular/material/core';\nimport { FocusMonitor } from '@angular/cdk/a11y';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { UniqueSelectionDispatcher } from '@angular/cdk/collections';\nimport { NG_VALUE_ACCESSOR } from '@angular/forms';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/radio/radio.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/cdk/collections';\nimport * as ɵngcc3 from '@angular/material/core';\n\nconst _c0 = [\"input\"];\nconst _c1 = function () { return { enterDuration: 150 }; };\nconst _c2 = [\"*\"];\nfunction MatRadioDefaultOptions() { }\nif (false) {\n    /** @type {?} */\n    MatRadioDefaultOptions.prototype.color;\n}\n/** @type {?} */\nconst MAT_RADIO_DEFAULT_OPTIONS = new InjectionToken('mat-radio-default-options', {\n    providedIn: 'root',\n    factory: MAT_RADIO_DEFAULT_OPTIONS_FACTORY\n});\n/**\n * @return {?}\n */\nfunction MAT_RADIO_DEFAULT_OPTIONS_FACTORY() {\n    return {\n        color: 'accent'\n    };\n}\n// Increasing integer for generating unique ids for radio components.\n/** @type {?} */\nlet nextUniqueId = 0;\n/**\n * Provider Expression that allows mat-radio-group to register as a ControlValueAccessor. This\n * allows it to support [(ngModel)] and ngControl.\n * \\@docs-private\n * @type {?}\n */\nconst MAT_RADIO_GROUP_CONTROL_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MatRadioGroup)),\n    multi: true\n};\n/**\n * Change event object emitted by MatRadio and MatRadioGroup.\n */\nclass MatRadioChange {\n    /**\n     * @param {?} source\n     * @param {?} value\n     */\n    constructor(source, value) {\n        this.source = source;\n        this.value = value;\n    }\n}\nif (false) {\n    /**\n     * The MatRadioButton that emits the change event.\n     * @type {?}\n     */\n    MatRadioChange.prototype.source;\n    /**\n     * The value of the MatRadioButton.\n     * @type {?}\n     */\n    MatRadioChange.prototype.value;\n}\n/**\n * A group of radio buttons. May contain one or more `<mat-radio-button>` elements.\n */\nclass MatRadioGroup {\n    /**\n     * @param {?} _changeDetector\n     */\n    constructor(_changeDetector) {\n        this._changeDetector = _changeDetector;\n        /**\n         * Selected value for the radio group.\n         */\n        this._value = null;\n        /**\n         * The HTML name attribute applied to radio buttons in this group.\n         */\n        this._name = `mat-radio-group-${nextUniqueId++}`;\n        /**\n         * The currently selected radio button. Should match value.\n         */\n        this._selected = null;\n        /**\n         * Whether the `value` has been set to its initial value.\n         */\n        this._isInitialized = false;\n        /**\n         * Whether the labels should appear after or before the radio-buttons. Defaults to 'after'\n         */\n        this._labelPosition = 'after';\n        /**\n         * Whether the radio group is disabled.\n         */\n        this._disabled = false;\n        /**\n         * Whether the radio group is required.\n         */\n        this._required = false;\n        /**\n         * The method to be called in order to update ngModel\n         */\n        this._controlValueAccessorChangeFn = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * onTouch function registered via registerOnTouch (ControlValueAccessor).\n         * \\@docs-private\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * Event emitted when the group value changes.\n         * Change events are only emitted when the value changes due to user interaction with\n         * a radio button (the same behavior as `<input type-\"radio\">`).\n         */\n        this.change = new EventEmitter();\n    }\n    /**\n     * Name of the radio button group. All radio buttons inside this group will use this name.\n     * @return {?}\n     */\n    get name() { return this._name; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set name(value) {\n        this._name = value;\n        this._updateRadioButtonNames();\n    }\n    /**\n     * Whether the labels should appear after or before the radio-buttons. Defaults to 'after'\n     * @return {?}\n     */\n    get labelPosition() {\n        return this._labelPosition;\n    }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set labelPosition(v) {\n        this._labelPosition = v === 'before' ? 'before' : 'after';\n        this._markRadiosForCheck();\n    }\n    /**\n     * Value for the radio-group. Should equal the value of the selected radio button if there is\n     * a corresponding radio button with a matching value. If there is not such a corresponding\n     * radio button, this value persists to be applied in case a new radio button is added with a\n     * matching value.\n     * @return {?}\n     */\n    get value() { return this._value; }\n    /**\n     * @param {?} newValue\n     * @return {?}\n     */\n    set value(newValue) {\n        if (this._value !== newValue) {\n            // Set this before proceeding to ensure no circular loop occurs with selection.\n            this._value = newValue;\n            this._updateSelectedRadioFromValue();\n            this._checkSelectedRadioButton();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    _checkSelectedRadioButton() {\n        if (this._selected && !this._selected.checked) {\n            this._selected.checked = true;\n        }\n    }\n    /**\n     * The currently selected radio button. If set to a new radio button, the radio group value\n     * will be updated to match the new selected button.\n     * @return {?}\n     */\n    get selected() { return this._selected; }\n    /**\n     * @param {?} selected\n     * @return {?}\n     */\n    set selected(selected) {\n        this._selected = selected;\n        this.value = selected ? selected.value : null;\n        this._checkSelectedRadioButton();\n    }\n    /**\n     * Whether the radio group is disabled\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = coerceBooleanProperty(value);\n        this._markRadiosForCheck();\n    }\n    /**\n     * Whether the radio group is required\n     * @return {?}\n     */\n    get required() { return this._required; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set required(value) {\n        this._required = coerceBooleanProperty(value);\n        this._markRadiosForCheck();\n    }\n    /**\n     * Initialize properties once content children are available.\n     * This allows us to propagate relevant attributes to associated buttons.\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        // Mark this component as initialized in AfterContentInit because the initial value can\n        // possibly be set by NgModel on MatRadioGroup, and it is possible that the OnInit of the\n        // NgModel occurs *after* the OnInit of the MatRadioGroup.\n        this._isInitialized = true;\n    }\n    /**\n     * Mark this group as being \"touched\" (for ngModel). Meant to be called by the contained\n     * radio buttons upon their blur.\n     * @return {?}\n     */\n    _touch() {\n        if (this.onTouched) {\n            this.onTouched();\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _updateRadioButtonNames() {\n        if (this._radios) {\n            this._radios.forEach((/**\n             * @param {?} radio\n             * @return {?}\n             */\n            radio => {\n                radio.name = this.name;\n                radio._markForCheck();\n            }));\n        }\n    }\n    /**\n     * Updates the `selected` radio button from the internal _value state.\n     * @private\n     * @return {?}\n     */\n    _updateSelectedRadioFromValue() {\n        // If the value already matches the selected radio, do nothing.\n        /** @type {?} */\n        const isAlreadySelected = this._selected !== null && this._selected.value === this._value;\n        if (this._radios && !isAlreadySelected) {\n            this._selected = null;\n            this._radios.forEach((/**\n             * @param {?} radio\n             * @return {?}\n             */\n            radio => {\n                radio.checked = this.value === radio.value;\n                if (radio.checked) {\n                    this._selected = radio;\n                }\n            }));\n        }\n    }\n    /**\n     * Dispatch change event with current selection and group value.\n     * @return {?}\n     */\n    _emitChangeEvent() {\n        if (this._isInitialized) {\n            this.change.emit(new MatRadioChange((/** @type {?} */ (this._selected)), this._value));\n        }\n    }\n    /**\n     * @return {?}\n     */\n    _markRadiosForCheck() {\n        if (this._radios) {\n            this._radios.forEach((/**\n             * @param {?} radio\n             * @return {?}\n             */\n            radio => radio._markForCheck()));\n        }\n    }\n    /**\n     * Sets the model value. Implemented as part of ControlValueAccessor.\n     * @param {?} value\n     * @return {?}\n     */\n    writeValue(value) {\n        this.value = value;\n        this._changeDetector.markForCheck();\n    }\n    /**\n     * Registers a callback to be triggered when the model value changes.\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} fn Callback to be registered.\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._controlValueAccessorChangeFn = fn;\n    }\n    /**\n     * Registers a callback to be triggered when the control is touched.\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} fn Callback to be registered.\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets the disabled state of the control. Implemented as a part of ControlValueAccessor.\n     * @param {?} isDisabled Whether the control should be disabled.\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this.disabled = isDisabled;\n        this._changeDetector.markForCheck();\n    }\n}\nMatRadioGroup.ɵfac = function MatRadioGroup_Factory(t) { return new (t || MatRadioGroup)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef)); };\nMatRadioGroup.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatRadioGroup, selectors: [[\"mat-radio-group\"]], contentQueries: function MatRadioGroup_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatRadioButton, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._radios = _t);\n    } }, hostAttrs: [\"role\", \"radiogroup\", 1, \"mat-radio-group\"], inputs: { name: \"name\", labelPosition: \"labelPosition\", value: \"value\", selected: \"selected\", disabled: \"disabled\", required: \"required\", color: \"color\" }, outputs: { change: \"change\" }, exportAs: [\"matRadioGroup\"], features: [ɵngcc0.ɵɵProvidersFeature([MAT_RADIO_GROUP_CONTROL_VALUE_ACCESSOR])] });\n/** @nocollapse */\nMatRadioGroup.ctorParameters = () => [\n    { type: ChangeDetectorRef }\n];\nMatRadioGroup.propDecorators = {\n    change: [{ type: Output }],\n    _radios: [{ type: ContentChildren, args: [forwardRef((/**\n                 * @return {?}\n                 */\n                () => MatRadioButton)), { descendants: true },] }],\n    color: [{ type: Input }],\n    name: [{ type: Input }],\n    labelPosition: [{ type: Input }],\n    value: [{ type: Input }],\n    selected: [{ type: Input }],\n    disabled: [{ type: Input }],\n    required: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatRadioGroup, [{\n        type: Directive,\n        args: [{\n                selector: 'mat-radio-group',\n                exportAs: 'matRadioGroup',\n                providers: [MAT_RADIO_GROUP_CONTROL_VALUE_ACCESSOR],\n                host: {\n                    'role': 'radiogroup',\n                    'class': 'mat-radio-group'\n                }\n            }]\n    }], function () { return [{ type: ɵngcc0.ChangeDetectorRef }]; }, { change: [{\n            type: Output\n        }], name: [{\n            type: Input\n        }], labelPosition: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }], selected: [{\n            type: Input\n        }], disabled: [{\n            type: Input\n        }], required: [{\n            type: Input\n        }], _radios: [{\n            type: ContentChildren,\n            args: [forwardRef(( /**\n                             * @return {?}\n                             */() => MatRadioButton)), { descendants: true }]\n        }], color: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatRadioGroup.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatRadioGroup.ngAcceptInputType_required;\n    /**\n     * Selected value for the radio group.\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._value;\n    /**\n     * The HTML name attribute applied to radio buttons in this group.\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._name;\n    /**\n     * The currently selected radio button. Should match value.\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._selected;\n    /**\n     * Whether the `value` has been set to its initial value.\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._isInitialized;\n    /**\n     * Whether the labels should appear after or before the radio-buttons. Defaults to 'after'\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._labelPosition;\n    /**\n     * Whether the radio group is disabled.\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._disabled;\n    /**\n     * Whether the radio group is required.\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._required;\n    /**\n     * The method to be called in order to update ngModel\n     * @type {?}\n     */\n    MatRadioGroup.prototype._controlValueAccessorChangeFn;\n    /**\n     * onTouch function registered via registerOnTouch (ControlValueAccessor).\n     * \\@docs-private\n     * @type {?}\n     */\n    MatRadioGroup.prototype.onTouched;\n    /**\n     * Event emitted when the group value changes.\n     * Change events are only emitted when the value changes due to user interaction with\n     * a radio button (the same behavior as `<input type-\"radio\">`).\n     * @type {?}\n     */\n    MatRadioGroup.prototype.change;\n    /**\n     * Child radio buttons.\n     * @type {?}\n     */\n    MatRadioGroup.prototype._radios;\n    /**\n     * Theme color for all of the radio buttons in the group.\n     * @type {?}\n     */\n    MatRadioGroup.prototype.color;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatRadioGroup.prototype._changeDetector;\n}\n// Boilerplate for applying mixins to MatRadioButton.\n/**\n * \\@docs-private\n */\nclass MatRadioButtonBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatRadioButtonBase.prototype.disabled;\n    /** @type {?} */\n    MatRadioButtonBase.prototype._elementRef;\n}\n// As per Material design specifications the selection control radio should use the accent color\n// palette by default. https://material.io/guidelines/components/selection-controls.html\n/** @type {?} */\nconst _MatRadioButtonMixinBase = mixinDisableRipple(mixinTabIndex(MatRadioButtonBase));\n/**\n * Base class with all of the `MatRadioButton` functionality.\n * \\@docs-private\n * @abstract\n */\n// tslint:disable-next-line:class-name\nclass _MatRadioButtonBase extends _MatRadioButtonMixinBase {\n    /**\n     * @param {?} radioGroup\n     * @param {?} elementRef\n     * @param {?} _changeDetector\n     * @param {?} _focusMonitor\n     * @param {?} _radioDispatcher\n     * @param {?=} _animationMode\n     * @param {?=} _providerOverride\n     */\n    constructor(radioGroup, elementRef, _changeDetector, _focusMonitor, _radioDispatcher, _animationMode, _providerOverride) {\n        super(elementRef);\n        this._changeDetector = _changeDetector;\n        this._focusMonitor = _focusMonitor;\n        this._radioDispatcher = _radioDispatcher;\n        this._animationMode = _animationMode;\n        this._providerOverride = _providerOverride;\n        this._uniqueId = `mat-radio-${++nextUniqueId}`;\n        /**\n         * The unique ID for the radio button.\n         */\n        this.id = this._uniqueId;\n        /**\n         * Event emitted when the checked state of this radio button changes.\n         * Change events are only emitted when the value changes due to user interaction with\n         * the radio button (the same behavior as `<input type-\"radio\">`).\n         */\n        this.change = new EventEmitter();\n        /**\n         * Whether this radio is checked.\n         */\n        this._checked = false;\n        /**\n         * Value assigned to this radio.\n         */\n        this._value = null;\n        /**\n         * Unregister function for _radioDispatcher\n         */\n        this._removeUniqueSelectionListener = (/**\n         * @return {?}\n         */\n        () => { });\n        // Assertions. Ideally these should be stripped out by the compiler.\n        // TODO(jelbourn): Assert that there's no name binding AND a parent radio group.\n        this.radioGroup = radioGroup;\n        this._removeUniqueSelectionListener =\n            _radioDispatcher.listen((/**\n             * @param {?} id\n             * @param {?} name\n             * @return {?}\n             */\n            (id, name) => {\n                if (id !== this.id && name === this.name) {\n                    this.checked = false;\n                }\n            }));\n    }\n    /**\n     * Whether this radio button is checked.\n     * @return {?}\n     */\n    get checked() { return this._checked; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set checked(value) {\n        /** @type {?} */\n        const newCheckedState = coerceBooleanProperty(value);\n        if (this._checked !== newCheckedState) {\n            this._checked = newCheckedState;\n            if (newCheckedState && this.radioGroup && this.radioGroup.value !== this.value) {\n                this.radioGroup.selected = this;\n            }\n            else if (!newCheckedState && this.radioGroup && this.radioGroup.value === this.value) {\n                // When unchecking the selected radio button, update the selected radio\n                // property on the group.\n                this.radioGroup.selected = null;\n            }\n            if (newCheckedState) {\n                // Notify all radio buttons with the same name to un-check.\n                this._radioDispatcher.notify(this.id, this.name);\n            }\n            this._changeDetector.markForCheck();\n        }\n    }\n    /**\n     * The value of this radio button.\n     * @return {?}\n     */\n    get value() { return this._value; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set value(value) {\n        if (this._value !== value) {\n            this._value = value;\n            if (this.radioGroup !== null) {\n                if (!this.checked) {\n                    // Update checked when the value changed to match the radio group's value\n                    this.checked = this.radioGroup.value === value;\n                }\n                if (this.checked) {\n                    this.radioGroup.selected = this;\n                }\n            }\n        }\n    }\n    /**\n     * Whether the label should appear after or before the radio button. Defaults to 'after'\n     * @return {?}\n     */\n    get labelPosition() {\n        return this._labelPosition || (this.radioGroup && this.radioGroup.labelPosition) || 'after';\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set labelPosition(value) {\n        this._labelPosition = value;\n    }\n    /**\n     * Whether the radio button is disabled.\n     * @return {?}\n     */\n    get disabled() {\n        return this._disabled || (this.radioGroup !== null && this.radioGroup.disabled);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._setDisabled(coerceBooleanProperty(value));\n    }\n    /**\n     * Whether the radio button is required.\n     * @return {?}\n     */\n    get required() {\n        return this._required || (this.radioGroup && this.radioGroup.required);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set required(value) {\n        this._required = coerceBooleanProperty(value);\n    }\n    /**\n     * Theme color of the radio button.\n     * @return {?}\n     */\n    get color() {\n        return this._color ||\n            (this.radioGroup && this.radioGroup.color) ||\n            this._providerOverride && this._providerOverride.color || 'accent';\n    }\n    /**\n     * @param {?} newValue\n     * @return {?}\n     */\n    set color(newValue) { this._color = newValue; }\n    /**\n     * ID of the native input element inside `<mat-radio-button>`\n     * @return {?}\n     */\n    get inputId() { return `${this.id || this._uniqueId}-input`; }\n    /**\n     * Focuses the radio button.\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(options) {\n        this._focusMonitor.focusVia(this._inputElement, 'keyboard', options);\n    }\n    /**\n     * Marks the radio button as needing checking for change detection.\n     * This method is exposed because the parent radio group will directly\n     * update bound properties of the radio button.\n     * @return {?}\n     */\n    _markForCheck() {\n        // When group value changes, the button will not be notified. Use `markForCheck` to explicit\n        // update radio button's status\n        this._changeDetector.markForCheck();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        if (this.radioGroup) {\n            // If the radio is inside a radio group, determine if it should be checked\n            this.checked = this.radioGroup.value === this._value;\n            // Copy name from parent radio group\n            this.name = this.radioGroup.name;\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterViewInit() {\n        this._focusMonitor\n            .monitor(this._elementRef, true)\n            .subscribe((/**\n         * @param {?} focusOrigin\n         * @return {?}\n         */\n        focusOrigin => {\n            if (!focusOrigin && this.radioGroup) {\n                this.radioGroup._touch();\n            }\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._focusMonitor.stopMonitoring(this._elementRef);\n        this._removeUniqueSelectionListener();\n    }\n    /**\n     * Dispatch change event with current value.\n     * @private\n     * @return {?}\n     */\n    _emitChangeEvent() {\n        this.change.emit(new MatRadioChange(this, this._value));\n    }\n    /**\n     * @return {?}\n     */\n    _isRippleDisabled() {\n        return this.disableRipple || this.disabled;\n    }\n    /**\n     * @param {?} event\n     * @return {?}\n     */\n    _onInputClick(event) {\n        // We have to stop propagation for click events on the visual hidden input element.\n        // By default, when a user clicks on a label element, a generated click event will be\n        // dispatched on the associated input element. Since we are using a label element as our\n        // root container, the click event on the `radio-button` will be executed twice.\n        // The real click event will bubble up, and the generated click event also tries to bubble up.\n        // This will lead to multiple click events.\n        // Preventing bubbling for the second event will solve that issue.\n        event.stopPropagation();\n    }\n    /**\n     * Triggered when the radio button received a click or the input recognized any change.\n     * Clicking on a label element, will trigger a change event on the associated input.\n     * @param {?} event\n     * @return {?}\n     */\n    _onInputChange(event) {\n        // We always have to stop propagation on the change event.\n        // Otherwise the change event, from the input element, will bubble up and\n        // emit its event object to the `change` output.\n        event.stopPropagation();\n        /** @type {?} */\n        const groupValueChanged = this.radioGroup && this.value !== this.radioGroup.value;\n        this.checked = true;\n        this._emitChangeEvent();\n        if (this.radioGroup) {\n            this.radioGroup._controlValueAccessorChangeFn(this.value);\n            if (groupValueChanged) {\n                this.radioGroup._emitChangeEvent();\n            }\n        }\n    }\n    /**\n     * Sets the disabled state and marks for check if a change occurred.\n     * @protected\n     * @param {?} value\n     * @return {?}\n     */\n    _setDisabled(value) {\n        if (this._disabled !== value) {\n            this._disabled = value;\n            this._changeDetector.markForCheck();\n        }\n    }\n}\n_MatRadioButtonBase.ɵfac = function _MatRadioButtonBase_Factory(t) { return new (t || _MatRadioButtonBase)(ɵngcc0.ɵɵdirectiveInject(MatRadioGroup, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.UniqueSelectionDispatcher), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8), ɵngcc0.ɵɵdirectiveInject(MAT_RADIO_DEFAULT_OPTIONS, 8)); };\n_MatRadioButtonBase.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: _MatRadioButtonBase, viewQuery: function _MatRadioButtonBase_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._inputElement = _t.first);\n    } }, inputs: { id: \"id\", checked: \"checked\", value: \"value\", labelPosition: \"labelPosition\", disabled: \"disabled\", required: \"required\", color: \"color\", name: \"name\", ariaLabel: [\"aria-label\", \"ariaLabel\"], ariaLabelledby: [\"aria-labelledby\", \"ariaLabelledby\"], ariaDescribedby: [\"aria-describedby\", \"ariaDescribedby\"] }, outputs: { change: \"change\" }, features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\n/** @nocollapse */\n_MatRadioButtonBase.ctorParameters = () => [\n    { type: MatRadioGroup, decorators: [{ type: Optional }] },\n    { type: ElementRef },\n    { type: ChangeDetectorRef },\n    { type: FocusMonitor },\n    { type: UniqueSelectionDispatcher },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_RADIO_DEFAULT_OPTIONS,] }] }\n];\n_MatRadioButtonBase.propDecorators = {\n    id: [{ type: Input }],\n    name: [{ type: Input }],\n    ariaLabel: [{ type: Input, args: ['aria-label',] }],\n    ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }],\n    ariaDescribedby: [{ type: Input, args: ['aria-describedby',] }],\n    checked: [{ type: Input }],\n    value: [{ type: Input }],\n    labelPosition: [{ type: Input }],\n    disabled: [{ type: Input }],\n    required: [{ type: Input }],\n    color: [{ type: Input }],\n    change: [{ type: Output }],\n    _inputElement: [{ type: ViewChild, args: ['input',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(_MatRadioButtonBase, [{\n        type: Directive\n    }], function () { return [{ type: MatRadioGroup, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc0.ElementRef }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc1.FocusMonitor }, { type: ɵngcc2.UniqueSelectionDispatcher }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_RADIO_DEFAULT_OPTIONS]\n            }] }]; }, { id: [{\n            type: Input\n        }], change: [{\n            type: Output\n        }], checked: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }], labelPosition: [{\n            type: Input\n        }], disabled: [{\n            type: Input\n        }], required: [{\n            type: Input\n        }], color: [{\n            type: Input\n        }], name: [{\n            type: Input\n        }], ariaLabel: [{\n            type: Input,\n            args: ['aria-label']\n        }], ariaLabelledby: [{\n            type: Input,\n            args: ['aria-labelledby']\n        }], ariaDescribedby: [{\n            type: Input,\n            args: ['aria-describedby']\n        }], _inputElement: [{\n            type: ViewChild,\n            args: ['input']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    _MatRadioButtonBase.ngAcceptInputType_checked;\n    /** @type {?} */\n    _MatRadioButtonBase.ngAcceptInputType_disabled;\n    /** @type {?} */\n    _MatRadioButtonBase.ngAcceptInputType_required;\n    /** @type {?} */\n    _MatRadioButtonBase.ngAcceptInputType_disableRipple;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._uniqueId;\n    /**\n     * The unique ID for the radio button.\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype.id;\n    /**\n     * Analog to HTML 'name' attribute used to group radios for unique selection.\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype.name;\n    /**\n     * Used to set the 'aria-label' attribute on the underlying input element.\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype.ariaLabel;\n    /**\n     * The 'aria-labelledby' attribute takes precedence as the element's text alternative.\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype.ariaLabelledby;\n    /**\n     * The 'aria-describedby' attribute is read after the element's label and field type.\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype.ariaDescribedby;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._labelPosition;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._color;\n    /**\n     * Event emitted when the checked state of this radio button changes.\n     * Change events are only emitted when the value changes due to user interaction with\n     * the radio button (the same behavior as `<input type-\"radio\">`).\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype.change;\n    /**\n     * The parent radio group. May or may not be present.\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype.radioGroup;\n    /**\n     * Whether this radio is checked.\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._checked;\n    /**\n     * Whether this radio is disabled.\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._disabled;\n    /**\n     * Whether this radio is required.\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._required;\n    /**\n     * Value assigned to this radio.\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._value;\n    /**\n     * Unregister function for _radioDispatcher\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._removeUniqueSelectionListener;\n    /**\n     * The native `<input type=radio>` element\n     * @type {?}\n     */\n    _MatRadioButtonBase.prototype._inputElement;\n    /**\n     * @type {?}\n     * @protected\n     */\n    _MatRadioButtonBase.prototype._changeDetector;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._focusMonitor;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._radioDispatcher;\n    /** @type {?} */\n    _MatRadioButtonBase.prototype._animationMode;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatRadioButtonBase.prototype._providerOverride;\n}\n/**\n * A Material design radio-button. Typically placed inside of `<mat-radio-group>` elements.\n */\nclass MatRadioButton extends _MatRadioButtonBase {\n}\nMatRadioButton.ɵfac = function MatRadioButton_Factory(t) { return ɵMatRadioButton_BaseFactory(t || MatRadioButton); };\nMatRadioButton.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatRadioButton, selectors: [[\"mat-radio-button\"]], hostAttrs: [1, \"mat-radio-button\"], hostVars: 17, hostBindings: function MatRadioButton_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"focus\", function MatRadioButton_focus_HostBindingHandler() { return ctx._inputElement.nativeElement.focus(); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"tabindex\", 0 - 1)(\"id\", ctx.id)(\"aria-label\", null)(\"aria-labelledby\", null)(\"aria-describedby\", null);\n        ɵngcc0.ɵɵclassProp(\"mat-radio-checked\", ctx.checked)(\"mat-radio-disabled\", ctx.disabled)(\"_mat-animation-noopable\", ctx._animationMode === \"NoopAnimations\")(\"mat-primary\", ctx.color === \"primary\")(\"mat-accent\", ctx.color === \"accent\")(\"mat-warn\", ctx.color === \"warn\");\n    } }, inputs: { disableRipple: \"disableRipple\", tabIndex: \"tabIndex\" }, exportAs: [\"matRadioButton\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c2, decls: 13, vars: 19, consts: [[1, \"mat-radio-label\"], [\"label\", \"\"], [1, \"mat-radio-container\"], [1, \"mat-radio-outer-circle\"], [1, \"mat-radio-inner-circle\"], [\"type\", \"radio\", 1, \"mat-radio-input\", \"cdk-visually-hidden\", 3, \"id\", \"checked\", \"disabled\", \"tabIndex\", \"required\", \"change\", \"click\"], [\"input\", \"\"], [\"mat-ripple\", \"\", 1, \"mat-radio-ripple\", \"mat-focus-indicator\", 3, \"matRippleTrigger\", \"matRippleDisabled\", \"matRippleCentered\", \"matRippleRadius\", \"matRippleAnimation\"], [1, \"mat-ripple-element\", \"mat-radio-persistent-ripple\"], [1, \"mat-radio-label-content\"], [2, \"display\", \"none\"]], template: function MatRadioButton_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵelementStart(0, \"label\", 0, 1);\n        ɵngcc0.ɵɵelementStart(2, \"div\", 2);\n        ɵngcc0.ɵɵelement(3, \"div\", 3);\n        ɵngcc0.ɵɵelement(4, \"div\", 4);\n        ɵngcc0.ɵɵelementStart(5, \"input\", 5, 6);\n        ɵngcc0.ɵɵlistener(\"change\", function MatRadioButton_Template_input_change_5_listener($event) { return ctx._onInputChange($event); })(\"click\", function MatRadioButton_Template_input_click_5_listener($event) { return ctx._onInputClick($event); });\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(7, \"div\", 7);\n        ɵngcc0.ɵɵelement(8, \"div\", 8);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(9, \"div\", 9);\n        ɵngcc0.ɵɵelementStart(10, \"span\", 10);\n        ɵngcc0.ɵɵtext(11, \"\\u00A0\");\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵprojection(12);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        const _r0 = ɵngcc0.ɵɵreference(1);\n        ɵngcc0.ɵɵattribute(\"for\", ctx.inputId);\n        ɵngcc0.ɵɵadvance(5);\n        ɵngcc0.ɵɵproperty(\"id\", ctx.inputId)(\"checked\", ctx.checked)(\"disabled\", ctx.disabled)(\"tabIndex\", ctx.tabIndex)(\"required\", ctx.required);\n        ɵngcc0.ɵɵattribute(\"name\", ctx.name)(\"value\", ctx.value)(\"aria-label\", ctx.ariaLabel)(\"aria-labelledby\", ctx.ariaLabelledby)(\"aria-describedby\", ctx.ariaDescribedby);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵproperty(\"matRippleTrigger\", _r0)(\"matRippleDisabled\", ctx._isRippleDisabled())(\"matRippleCentered\", true)(\"matRippleRadius\", 20)(\"matRippleAnimation\", ɵngcc0.ɵɵpureFunction0(18, _c1));\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵclassProp(\"mat-radio-label-before\", ctx.labelPosition == \"before\");\n    } }, directives: [ɵngcc3.MatRipple], styles: [\".mat-radio-button{display:inline-block;-webkit-tap-highlight-color:transparent;outline:0}.mat-radio-label{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;display:inline-flex;align-items:center;white-space:nowrap;vertical-align:middle;width:100%}.mat-radio-container{box-sizing:border-box;display:inline-block;position:relative;width:20px;height:20px;flex-shrink:0}.mat-radio-outer-circle{box-sizing:border-box;height:20px;left:0;position:absolute;top:0;transition:border-color ease 280ms;width:20px;border-width:2px;border-style:solid;border-radius:50%}._mat-animation-noopable .mat-radio-outer-circle{transition:none}.mat-radio-inner-circle{border-radius:50%;box-sizing:border-box;height:20px;left:0;position:absolute;top:0;transition:transform ease 280ms,background-color ease 280ms;width:20px;transform:scale(0.001)}._mat-animation-noopable .mat-radio-inner-circle{transition:none}.mat-radio-checked .mat-radio-inner-circle{transform:scale(0.5)}.cdk-high-contrast-active .mat-radio-checked .mat-radio-inner-circle{border:solid 10px}.mat-radio-label-content{-webkit-user-select:auto;-moz-user-select:auto;-ms-user-select:auto;user-select:auto;display:inline-block;order:0;line-height:inherit;padding-left:8px;padding-right:0}[dir=rtl] .mat-radio-label-content{padding-right:8px;padding-left:0}.mat-radio-label-content.mat-radio-label-before{order:-1;padding-left:0;padding-right:8px}[dir=rtl] .mat-radio-label-content.mat-radio-label-before{padding-right:0;padding-left:8px}.mat-radio-disabled,.mat-radio-disabled .mat-radio-label{cursor:default}.mat-radio-button .mat-radio-ripple{position:absolute;left:calc(50% - 20px);top:calc(50% - 20px);height:40px;width:40px;z-index:1;pointer-events:none}.mat-radio-button .mat-radio-ripple .mat-ripple-element:not(.mat-radio-persistent-ripple){opacity:.16}.mat-radio-persistent-ripple{width:100%;height:100%;transform:none}.mat-radio-container:hover .mat-radio-persistent-ripple{opacity:.04}.mat-radio-button:not(.mat-radio-disabled).cdk-keyboard-focused .mat-radio-persistent-ripple,.mat-radio-button:not(.mat-radio-disabled).cdk-program-focused .mat-radio-persistent-ripple{opacity:.12}.mat-radio-persistent-ripple,.mat-radio-disabled .mat-radio-container:hover .mat-radio-persistent-ripple{opacity:0}@media(hover: none){.mat-radio-container:hover .mat-radio-persistent-ripple{display:none}}.mat-radio-input{bottom:0;left:50%}.cdk-high-contrast-active .mat-radio-disabled{opacity:.5}\\n\"], encapsulation: 2, changeDetection: 0 });\nconst ɵMatRadioButton_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(MatRadioButton);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatRadioButton, [{\n        type: Component,\n        args: [{\n                selector: 'mat-radio-button',\n                template: \"<!-- TODO(jelbourn): render the radio on either side of the content -->\\n<!-- TODO(mtlin): Evaluate trade-offs of using native radio vs. cost of additional bindings. -->\\n<label [attr.for]=\\\"inputId\\\" class=\\\"mat-radio-label\\\" #label>\\n  <!-- The actual 'radio' part of the control. -->\\n  <div class=\\\"mat-radio-container\\\">\\n    <div class=\\\"mat-radio-outer-circle\\\"></div>\\n    <div class=\\\"mat-radio-inner-circle\\\"></div>\\n    <input #input class=\\\"mat-radio-input cdk-visually-hidden\\\" type=\\\"radio\\\"\\n        [id]=\\\"inputId\\\"\\n        [checked]=\\\"checked\\\"\\n        [disabled]=\\\"disabled\\\"\\n        [tabIndex]=\\\"tabIndex\\\"\\n        [attr.name]=\\\"name\\\"\\n        [attr.value]=\\\"value\\\"\\n        [required]=\\\"required\\\"\\n        [attr.aria-label]=\\\"ariaLabel\\\"\\n        [attr.aria-labelledby]=\\\"ariaLabelledby\\\"\\n        [attr.aria-describedby]=\\\"ariaDescribedby\\\"\\n        (change)=\\\"_onInputChange($event)\\\"\\n        (click)=\\\"_onInputClick($event)\\\">\\n\\n    <!-- The ripple comes after the input so that we can target it with a CSS\\n         sibling selector when the input is focused. -->\\n    <div mat-ripple class=\\\"mat-radio-ripple mat-focus-indicator\\\"\\n         [matRippleTrigger]=\\\"label\\\"\\n         [matRippleDisabled]=\\\"_isRippleDisabled()\\\"\\n         [matRippleCentered]=\\\"true\\\"\\n         [matRippleRadius]=\\\"20\\\"\\n         [matRippleAnimation]=\\\"{enterDuration: 150}\\\">\\n\\n      <div class=\\\"mat-ripple-element mat-radio-persistent-ripple\\\"></div>\\n    </div>\\n  </div>\\n\\n  <!-- The label content for radio control. -->\\n  <div class=\\\"mat-radio-label-content\\\" [class.mat-radio-label-before]=\\\"labelPosition == 'before'\\\">\\n    <!-- Add an invisible span so JAWS can read the label -->\\n    <span style=\\\"display:none\\\">&nbsp;</span>\\n    <ng-content></ng-content>\\n  </div>\\n</label>\\n\",\n                inputs: ['disableRipple', 'tabIndex'],\n                encapsulation: ViewEncapsulation.None,\n                exportAs: 'matRadioButton',\n                host: {\n                    'class': 'mat-radio-button',\n                    '[class.mat-radio-checked]': 'checked',\n                    '[class.mat-radio-disabled]': 'disabled',\n                    '[class._mat-animation-noopable]': '_animationMode === \"NoopAnimations\"',\n                    '[class.mat-primary]': 'color === \"primary\"',\n                    '[class.mat-accent]': 'color === \"accent\"',\n                    '[class.mat-warn]': 'color === \"warn\"',\n                    // Needs to be -1 so the `focus` event still fires.\n                    '[attr.tabindex]': '-1',\n                    '[attr.id]': 'id',\n                    '[attr.aria-label]': 'null',\n                    '[attr.aria-labelledby]': 'null',\n                    '[attr.aria-describedby]': 'null',\n                    // Note: under normal conditions focus shouldn't land on this element, however it may be\n                    // programmatically set, for example inside of a focus trap, in this case we want to forward\n                    // the focus to the native element.\n                    '(focus)': '_inputElement.nativeElement.focus()'\n                },\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\".mat-radio-button{display:inline-block;-webkit-tap-highlight-color:transparent;outline:0}.mat-radio-label{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;display:inline-flex;align-items:center;white-space:nowrap;vertical-align:middle;width:100%}.mat-radio-container{box-sizing:border-box;display:inline-block;position:relative;width:20px;height:20px;flex-shrink:0}.mat-radio-outer-circle{box-sizing:border-box;height:20px;left:0;position:absolute;top:0;transition:border-color ease 280ms;width:20px;border-width:2px;border-style:solid;border-radius:50%}._mat-animation-noopable .mat-radio-outer-circle{transition:none}.mat-radio-inner-circle{border-radius:50%;box-sizing:border-box;height:20px;left:0;position:absolute;top:0;transition:transform ease 280ms,background-color ease 280ms;width:20px;transform:scale(0.001)}._mat-animation-noopable .mat-radio-inner-circle{transition:none}.mat-radio-checked .mat-radio-inner-circle{transform:scale(0.5)}.cdk-high-contrast-active .mat-radio-checked .mat-radio-inner-circle{border:solid 10px}.mat-radio-label-content{-webkit-user-select:auto;-moz-user-select:auto;-ms-user-select:auto;user-select:auto;display:inline-block;order:0;line-height:inherit;padding-left:8px;padding-right:0}[dir=rtl] .mat-radio-label-content{padding-right:8px;padding-left:0}.mat-radio-label-content.mat-radio-label-before{order:-1;padding-left:0;padding-right:8px}[dir=rtl] .mat-radio-label-content.mat-radio-label-before{padding-right:0;padding-left:8px}.mat-radio-disabled,.mat-radio-disabled .mat-radio-label{cursor:default}.mat-radio-button .mat-radio-ripple{position:absolute;left:calc(50% - 20px);top:calc(50% - 20px);height:40px;width:40px;z-index:1;pointer-events:none}.mat-radio-button .mat-radio-ripple .mat-ripple-element:not(.mat-radio-persistent-ripple){opacity:.16}.mat-radio-persistent-ripple{width:100%;height:100%;transform:none}.mat-radio-container:hover .mat-radio-persistent-ripple{opacity:.04}.mat-radio-button:not(.mat-radio-disabled).cdk-keyboard-focused .mat-radio-persistent-ripple,.mat-radio-button:not(.mat-radio-disabled).cdk-program-focused .mat-radio-persistent-ripple{opacity:.12}.mat-radio-persistent-ripple,.mat-radio-disabled .mat-radio-container:hover .mat-radio-persistent-ripple{opacity:0}@media(hover: none){.mat-radio-container:hover .mat-radio-persistent-ripple{display:none}}.mat-radio-input{bottom:0;left:50%}.cdk-high-contrast-active .mat-radio-disabled{opacity:.5}\\n\"]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/radio/radio-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatRadioModule {\n}\nMatRadioModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatRadioModule });\nMatRadioModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatRadioModule_Factory(t) { return new (t || MatRadioModule)(); }, imports: [[MatRippleModule, MatCommonModule], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatRadioModule, { declarations: function () { return [MatRadioGroup, MatRadioButton]; }, imports: function () { return [MatRippleModule, MatCommonModule]; }, exports: function () { return [MatRadioGroup, MatRadioButton, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatRadioModule, [{\n        type: NgModule,\n        args: [{\n                imports: [MatRippleModule, MatCommonModule],\n                exports: [MatRadioGroup, MatRadioButton, MatCommonModule],\n                declarations: [MatRadioGroup, MatRadioButton]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/radio/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_RADIO_DEFAULT_OPTIONS, MAT_RADIO_DEFAULT_OPTIONS_FACTORY, MAT_RADIO_GROUP_CONTROL_VALUE_ACCESSOR, MatRadioButton, MatRadioChange, MatRadioGroup, MatRadioModule, _MatRadioButtonBase };\n\n//# sourceMappingURL=radio.js.map","import { DOCUMENT, CommonModule } from '@angular/common';\nimport { forwardRef, EventEmitter, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, ChangeDetectorRef, Optional, Attribute, Inject, NgZone, Input, Output, ViewChild, NgModule } from '@angular/core';\nimport { mixinTabIndex, mixinColor, mixinDisabled, MatCommonModule } from '@angular/material/core';\nimport { FocusMonitor } from '@angular/cdk/a11y';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';\nimport { hasModifierKey, DOWN_ARROW, RIGHT_ARROW, UP_ARROW, LEFT_ARROW, HOME, END, PAGE_DOWN, PAGE_UP } from '@angular/cdk/keycodes';\nimport { NG_VALUE_ACCESSOR } from '@angular/forms';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\nimport { normalizePassiveListenerOptions } from '@angular/cdk/platform';\nimport { Subscription } from 'rxjs';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slider/slider.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/cdk/bidi';\nimport * as ɵngcc3 from '@angular/common';\n\nconst _c0 = [\"sliderWrapper\"];\nconst activeEventOptions = normalizePassiveListenerOptions({ passive: false });\n/**\n * Visually, a 30px separation between tick marks looks best. This is very subjective but it is\n * the default separation we chose.\n * @type {?}\n */\nconst MIN_AUTO_TICK_SEPARATION = 30;\n/**\n * The thumb gap size for a disabled slider.\n * @type {?}\n */\nconst DISABLED_THUMB_GAP = 7;\n/**\n * The thumb gap size for a non-active slider at its minimum value.\n * @type {?}\n */\nconst MIN_VALUE_NONACTIVE_THUMB_GAP = 7;\n/**\n * The thumb gap size for an active slider at its minimum value.\n * @type {?}\n */\nconst MIN_VALUE_ACTIVE_THUMB_GAP = 10;\n/**\n * Provider Expression that allows mat-slider to register as a ControlValueAccessor.\n * This allows it to support [(ngModel)] and [formControl].\n * \\@docs-private\n * @type {?}\n */\nconst MAT_SLIDER_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MatSlider)),\n    multi: true\n};\n/**\n * A simple change event emitted by the MatSlider component.\n */\nclass MatSliderChange {\n}\nif (false) {\n    /**\n     * The MatSlider that changed.\n     * @type {?}\n     */\n    MatSliderChange.prototype.source;\n    /**\n     * The new value of the source slider.\n     * @type {?}\n     */\n    MatSliderChange.prototype.value;\n}\n// Boilerplate for applying mixins to MatSlider.\n/**\n * \\@docs-private\n */\nclass MatSliderBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatSliderBase.prototype._elementRef;\n}\n/** @type {?} */\nconst _MatSliderMixinBase = mixinTabIndex(mixinColor(mixinDisabled(MatSliderBase), 'accent'));\n/**\n * Allows users to select from a range of values by moving the slider thumb. It is similar in\n * behavior to the native `<input type=\"range\">` element.\n */\nclass MatSlider extends _MatSliderMixinBase {\n    /**\n     * @param {?} elementRef\n     * @param {?} _focusMonitor\n     * @param {?} _changeDetectorRef\n     * @param {?} _dir\n     * @param {?} tabIndex\n     * @param {?=} _animationMode\n     * @param {?=} _ngZone\n     * @param {?=} document\n     */\n    constructor(elementRef, _focusMonitor, _changeDetectorRef, _dir, tabIndex, _animationMode, _ngZone, \n    /** @breaking-change 11.0.0 make document required */\n    document) {\n        super(elementRef);\n        this._focusMonitor = _focusMonitor;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._dir = _dir;\n        this._animationMode = _animationMode;\n        this._ngZone = _ngZone;\n        this._invert = false;\n        this._max = 100;\n        this._min = 0;\n        this._step = 1;\n        this._thumbLabel = false;\n        this._tickInterval = 0;\n        this._value = null;\n        this._vertical = false;\n        /**\n         * Event emitted when the slider value has changed.\n         */\n        this.change = new EventEmitter();\n        /**\n         * Event emitted when the slider thumb moves.\n         */\n        this.input = new EventEmitter();\n        /**\n         * Emits when the raw value of the slider changes. This is here primarily\n         * to facilitate the two-way binding for the `value` input.\n         * \\@docs-private\n         */\n        this.valueChange = new EventEmitter();\n        /**\n         * onTouch function registered via registerOnTouch (ControlValueAccessor).\n         */\n        this.onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        this._percent = 0;\n        /**\n         * Whether or not the thumb is sliding.\n         * Used to determine if there should be a transition for the thumb and fill track.\n         */\n        this._isSliding = false;\n        /**\n         * Whether or not the slider is active (clicked or sliding).\n         * Used to shrink and grow the thumb as according to the Material Design spec.\n         */\n        this._isActive = false;\n        /**\n         * The size of a tick interval as a percentage of the size of the track.\n         */\n        this._tickIntervalPercent = 0;\n        /**\n         * The dimensions of the slider.\n         */\n        this._sliderDimensions = null;\n        this._controlValueAccessorChangeFn = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * Subscription to the Directionality change EventEmitter.\n         */\n        this._dirChangeSubscription = Subscription.EMPTY;\n        /**\n         * Called when the user has put their pointer down on the slider.\n         */\n        this._pointerDown = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            // Don't do anything if the slider is disabled or the\n            // user is using anything other than the main mouse button.\n            if (this.disabled || this._isSliding || (!isTouchEvent(event) && event.button !== 0)) {\n                return;\n            }\n            this._runInsideZone((/**\n             * @return {?}\n             */\n            () => {\n                /** @type {?} */\n                const oldValue = this.value;\n                /** @type {?} */\n                const pointerPosition = getPointerPositionOnPage(event);\n                this._isSliding = true;\n                this._lastPointerEvent = event;\n                event.preventDefault();\n                this._focusHostElement();\n                this._onMouseenter(); // Simulate mouseenter in case this is a mobile device.\n                this._bindGlobalEvents(event);\n                this._focusHostElement();\n                this._updateValueFromPosition(pointerPosition);\n                this._valueOnSlideStart = this.value;\n                this._pointerPositionOnStart = pointerPosition;\n                // Emit a change and input event if the value changed.\n                if (oldValue != this.value) {\n                    this._emitInputEvent();\n                    this._emitChangeEvent();\n                }\n            }));\n        });\n        /**\n         * Called when the user has moved their pointer after\n         * starting to drag. Bound on the document level.\n         */\n        this._pointerMove = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            if (this._isSliding) {\n                // Prevent the slide from selecting anything else.\n                event.preventDefault();\n                /** @type {?} */\n                const oldValue = this.value;\n                this._lastPointerEvent = event;\n                this._updateValueFromPosition(getPointerPositionOnPage(event));\n                // Native range elements always emit `input` events when the value changed while sliding.\n                if (oldValue != this.value) {\n                    this._emitInputEvent();\n                }\n            }\n        });\n        /**\n         * Called when the user has lifted their pointer. Bound on the document level.\n         */\n        this._pointerUp = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            if (this._isSliding) {\n                /** @type {?} */\n                const pointerPositionOnStart = this._pointerPositionOnStart;\n                /** @type {?} */\n                const currentPointerPosition = getPointerPositionOnPage(event);\n                event.preventDefault();\n                this._removeGlobalEvents();\n                this._valueOnSlideStart = this._pointerPositionOnStart = this._lastPointerEvent = null;\n                this._isSliding = false;\n                if (this._valueOnSlideStart != this.value && !this.disabled &&\n                    pointerPositionOnStart && (pointerPositionOnStart.x !== currentPointerPosition.x ||\n                    pointerPositionOnStart.y !== currentPointerPosition.y)) {\n                    this._emitChangeEvent();\n                }\n            }\n        });\n        /**\n         * Called when the window has lost focus.\n         */\n        this._windowBlur = (/**\n         * @return {?}\n         */\n        () => {\n            // If the window is blurred while dragging we need to stop dragging because the\n            // browser won't dispatch the `mouseup` and `touchend` events anymore.\n            if (this._lastPointerEvent) {\n                this._pointerUp(this._lastPointerEvent);\n            }\n        });\n        this._document = document;\n        this.tabIndex = parseInt(tabIndex) || 0;\n        this._runOutsizeZone((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const element = elementRef.nativeElement;\n            element.addEventListener('mousedown', this._pointerDown, activeEventOptions);\n            element.addEventListener('touchstart', this._pointerDown, activeEventOptions);\n        }));\n    }\n    /**\n     * Whether the slider is inverted.\n     * @return {?}\n     */\n    get invert() { return this._invert; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set invert(value) {\n        this._invert = coerceBooleanProperty(value);\n    }\n    /**\n     * The maximum value that the slider can have.\n     * @return {?}\n     */\n    get max() { return this._max; }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set max(v) {\n        this._max = coerceNumberProperty(v, this._max);\n        this._percent = this._calculatePercentage(this._value);\n        // Since this also modifies the percentage, we need to let the change detection know.\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * The minimum value that the slider can have.\n     * @return {?}\n     */\n    get min() { return this._min; }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set min(v) {\n        this._min = coerceNumberProperty(v, this._min);\n        // If the value wasn't explicitly set by the user, set it to the min.\n        if (this._value === null) {\n            this.value = this._min;\n        }\n        this._percent = this._calculatePercentage(this._value);\n        // Since this also modifies the percentage, we need to let the change detection know.\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * The values at which the thumb will snap.\n     * @return {?}\n     */\n    get step() { return this._step; }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set step(v) {\n        this._step = coerceNumberProperty(v, this._step);\n        if (this._step % 1 !== 0) {\n            this._roundToDecimal = (/** @type {?} */ (this._step.toString().split('.').pop())).length;\n        }\n        // Since this could modify the label, we need to notify the change detection.\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * Whether or not to show the thumb label.\n     * @return {?}\n     */\n    get thumbLabel() { return this._thumbLabel; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set thumbLabel(value) { this._thumbLabel = coerceBooleanProperty(value); }\n    /**\n     * How often to show ticks. Relative to the step so that a tick always appears on a step.\n     * Ex: Tick interval of 4 with a step of 3 will draw a tick every 4 steps (every 12 values).\n     * @return {?}\n     */\n    get tickInterval() { return this._tickInterval; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set tickInterval(value) {\n        if (value === 'auto') {\n            this._tickInterval = 'auto';\n        }\n        else if (typeof value === 'number' || typeof value === 'string') {\n            this._tickInterval = coerceNumberProperty(value, (/** @type {?} */ (this._tickInterval)));\n        }\n        else {\n            this._tickInterval = 0;\n        }\n    }\n    /**\n     * Value of the slider.\n     * @return {?}\n     */\n    get value() {\n        // If the value needs to be read and it is still uninitialized, initialize it to the min.\n        if (this._value === null) {\n            this.value = this._min;\n        }\n        return this._value;\n    }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set value(v) {\n        if (v !== this._value) {\n            /** @type {?} */\n            let value = coerceNumberProperty(v);\n            // While incrementing by a decimal we can end up with values like 33.300000000000004.\n            // Truncate it to ensure that it matches the label and to make it easier to work with.\n            if (this._roundToDecimal) {\n                value = parseFloat(value.toFixed(this._roundToDecimal));\n            }\n            this._value = value;\n            this._percent = this._calculatePercentage(this._value);\n            // Since this also modifies the percentage, we need to let the change detection know.\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * Whether the slider is vertical.\n     * @return {?}\n     */\n    get vertical() { return this._vertical; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set vertical(value) {\n        this._vertical = coerceBooleanProperty(value);\n    }\n    /**\n     * The value to be used for display purposes.\n     * @return {?}\n     */\n    get displayValue() {\n        if (this.displayWith) {\n            // Value is never null but since setters and getters cannot have\n            // different types, the value getter is also typed to return null.\n            return this.displayWith((/** @type {?} */ (this.value)));\n        }\n        // Note that this could be improved further by rounding something like 0.999 to 1 or\n        // 0.899 to 0.9, however it is very performance sensitive, because it gets called on\n        // every change detection cycle.\n        if (this._roundToDecimal && this.value && this.value % 1 !== 0) {\n            return this.value.toFixed(this._roundToDecimal);\n        }\n        return this.value || 0;\n    }\n    /**\n     * set focus to the host element\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(options) {\n        this._focusHostElement(options);\n    }\n    /**\n     * blur the host element\n     * @return {?}\n     */\n    blur() {\n        this._blurHostElement();\n    }\n    /**\n     * The percentage of the slider that coincides with the value.\n     * @return {?}\n     */\n    get percent() { return this._clamp(this._percent); }\n    /**\n     * Whether the axis of the slider is inverted.\n     * (i.e. whether moving the thumb in the positive x or y direction decreases the slider's value).\n     * @return {?}\n     */\n    get _invertAxis() {\n        // Standard non-inverted mode for a vertical slider should be dragging the thumb from bottom to\n        // top. However from a y-axis standpoint this is inverted.\n        return this.vertical ? !this.invert : this.invert;\n    }\n    /**\n     * Whether the slider is at its minimum value.\n     * @return {?}\n     */\n    get _isMinValue() {\n        return this.percent === 0;\n    }\n    /**\n     * The amount of space to leave between the slider thumb and the track fill & track background\n     * elements.\n     * @return {?}\n     */\n    get _thumbGap() {\n        if (this.disabled) {\n            return DISABLED_THUMB_GAP;\n        }\n        if (this._isMinValue && !this.thumbLabel) {\n            return this._isActive ? MIN_VALUE_ACTIVE_THUMB_GAP : MIN_VALUE_NONACTIVE_THUMB_GAP;\n        }\n        return 0;\n    }\n    /**\n     * CSS styles for the track background element.\n     * @return {?}\n     */\n    get _trackBackgroundStyles() {\n        /** @type {?} */\n        const axis = this.vertical ? 'Y' : 'X';\n        /** @type {?} */\n        const scale = this.vertical ? `1, ${1 - this.percent}, 1` : `${1 - this.percent}, 1, 1`;\n        /** @type {?} */\n        const sign = this._shouldInvertMouseCoords() ? '-' : '';\n        return {\n            // scale3d avoids some rendering issues in Chrome. See #12071.\n            transform: `translate${axis}(${sign}${this._thumbGap}px) scale3d(${scale})`\n        };\n    }\n    /**\n     * CSS styles for the track fill element.\n     * @return {?}\n     */\n    get _trackFillStyles() {\n        /** @type {?} */\n        const percent = this.percent;\n        /** @type {?} */\n        const axis = this.vertical ? 'Y' : 'X';\n        /** @type {?} */\n        const scale = this.vertical ? `1, ${percent}, 1` : `${percent}, 1, 1`;\n        /** @type {?} */\n        const sign = this._shouldInvertMouseCoords() ? '' : '-';\n        return {\n            // scale3d avoids some rendering issues in Chrome. See #12071.\n            transform: `translate${axis}(${sign}${this._thumbGap}px) scale3d(${scale})`,\n            // iOS Safari has a bug where it won't re-render elements which start of as `scale(0)` until\n            // something forces a style recalculation on it. Since we'll end up with `scale(0)` when\n            // the value of the slider is 0, we can easily get into this situation. We force a\n            // recalculation by changing the element's `display` when it goes from 0 to any other value.\n            display: percent === 0 ? 'none' : ''\n        };\n    }\n    /**\n     * CSS styles for the ticks container element.\n     * @return {?}\n     */\n    get _ticksContainerStyles() {\n        /** @type {?} */\n        let axis = this.vertical ? 'Y' : 'X';\n        // For a horizontal slider in RTL languages we push the ticks container off the left edge\n        // instead of the right edge to avoid causing a horizontal scrollbar to appear.\n        /** @type {?} */\n        let sign = !this.vertical && this._getDirection() == 'rtl' ? '' : '-';\n        /** @type {?} */\n        let offset = this._tickIntervalPercent / 2 * 100;\n        return {\n            'transform': `translate${axis}(${sign}${offset}%)`\n        };\n    }\n    /**\n     * CSS styles for the ticks element.\n     * @return {?}\n     */\n    get _ticksStyles() {\n        /** @type {?} */\n        let tickSize = this._tickIntervalPercent * 100;\n        /** @type {?} */\n        let backgroundSize = this.vertical ? `2px ${tickSize}%` : `${tickSize}% 2px`;\n        /** @type {?} */\n        let axis = this.vertical ? 'Y' : 'X';\n        // Depending on the direction we pushed the ticks container, push the ticks the opposite\n        // direction to re-center them but clip off the end edge. In RTL languages we need to flip the\n        // ticks 180 degrees so we're really cutting off the end edge abd not the start.\n        /** @type {?} */\n        let sign = !this.vertical && this._getDirection() == 'rtl' ? '-' : '';\n        /** @type {?} */\n        let rotate = !this.vertical && this._getDirection() == 'rtl' ? ' rotate(180deg)' : '';\n        /** @type {?} */\n        let styles = {\n            'backgroundSize': backgroundSize,\n            // Without translateZ ticks sometimes jitter as the slider moves on Chrome & Firefox.\n            'transform': `translateZ(0) translate${axis}(${sign}${tickSize / 2}%)${rotate}`\n        };\n        if (this._isMinValue && this._thumbGap) {\n            /** @type {?} */\n            let side;\n            if (this.vertical) {\n                side = this._invertAxis ? 'Bottom' : 'Top';\n            }\n            else {\n                side = this._invertAxis ? 'Right' : 'Left';\n            }\n            styles[`padding${side}`] = `${this._thumbGap}px`;\n        }\n        return styles;\n    }\n    /**\n     * @return {?}\n     */\n    get _thumbContainerStyles() {\n        /** @type {?} */\n        let axis = this.vertical ? 'Y' : 'X';\n        // For a horizontal slider in RTL languages we push the thumb container off the left edge\n        // instead of the right edge to avoid causing a horizontal scrollbar to appear.\n        /** @type {?} */\n        let invertOffset = (this._getDirection() == 'rtl' && !this.vertical) ? !this._invertAxis : this._invertAxis;\n        /** @type {?} */\n        let offset = (invertOffset ? this.percent : 1 - this.percent) * 100;\n        return {\n            'transform': `translate${axis}(-${offset}%)`\n        };\n    }\n    /**\n     * Whether mouse events should be converted to a slider position by calculating their distance\n     * from the right or bottom edge of the slider as opposed to the top or left.\n     * @return {?}\n     */\n    _shouldInvertMouseCoords() {\n        return (this._getDirection() == 'rtl' && !this.vertical) ? !this._invertAxis : this._invertAxis;\n    }\n    /**\n     * The language direction for this slider element.\n     * @private\n     * @return {?}\n     */\n    _getDirection() {\n        return (this._dir && this._dir.value == 'rtl') ? 'rtl' : 'ltr';\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this._focusMonitor\n            .monitor(this._elementRef, true)\n            .subscribe((/**\n         * @param {?} origin\n         * @return {?}\n         */\n        (origin) => {\n            this._isActive = !!origin && origin !== 'keyboard';\n            this._changeDetectorRef.detectChanges();\n        }));\n        if (this._dir) {\n            this._dirChangeSubscription = this._dir.change.subscribe((/**\n             * @return {?}\n             */\n            () => {\n                this._changeDetectorRef.markForCheck();\n            }));\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        /** @type {?} */\n        const element = this._elementRef.nativeElement;\n        element.removeEventListener('mousedown', this._pointerDown, activeEventOptions);\n        element.removeEventListener('touchstart', this._pointerDown, activeEventOptions);\n        this._lastPointerEvent = null;\n        this._removeGlobalEvents();\n        this._focusMonitor.stopMonitoring(this._elementRef);\n        this._dirChangeSubscription.unsubscribe();\n    }\n    /**\n     * @return {?}\n     */\n    _onMouseenter() {\n        if (this.disabled) {\n            return;\n        }\n        // We save the dimensions of the slider here so we can use them to update the spacing of the\n        // ticks and determine where on the slider click and slide events happen.\n        this._sliderDimensions = this._getSliderDimensions();\n        this._updateTickIntervalPercent();\n    }\n    /**\n     * @return {?}\n     */\n    _onFocus() {\n        // We save the dimensions of the slider here so we can use them to update the spacing of the\n        // ticks and determine where on the slider click and slide events happen.\n        this._sliderDimensions = this._getSliderDimensions();\n        this._updateTickIntervalPercent();\n    }\n    /**\n     * @return {?}\n     */\n    _onBlur() {\n        this.onTouched();\n    }\n    /**\n     * @param {?} event\n     * @return {?}\n     */\n    _onKeydown(event) {\n        if (this.disabled || hasModifierKey(event)) {\n            return;\n        }\n        /** @type {?} */\n        const oldValue = this.value;\n        switch (event.keyCode) {\n            case PAGE_UP:\n                this._increment(10);\n                break;\n            case PAGE_DOWN:\n                this._increment(-10);\n                break;\n            case END:\n                this.value = this.max;\n                break;\n            case HOME:\n                this.value = this.min;\n                break;\n            case LEFT_ARROW:\n                // NOTE: For a sighted user it would make more sense that when they press an arrow key on an\n                // inverted slider the thumb moves in that direction. However for a blind user, nothing\n                // about the slider indicates that it is inverted. They will expect left to be decrement,\n                // regardless of how it appears on the screen. For speakers ofRTL languages, they probably\n                // expect left to mean increment. Therefore we flip the meaning of the side arrow keys for\n                // RTL. For inverted sliders we prefer a good a11y experience to having it \"look right\" for\n                // sighted users, therefore we do not swap the meaning.\n                this._increment(this._getDirection() == 'rtl' ? 1 : -1);\n                break;\n            case UP_ARROW:\n                this._increment(1);\n                break;\n            case RIGHT_ARROW:\n                // See comment on LEFT_ARROW about the conditions under which we flip the meaning.\n                this._increment(this._getDirection() == 'rtl' ? -1 : 1);\n                break;\n            case DOWN_ARROW:\n                this._increment(-1);\n                break;\n            default:\n                // Return if the key is not one that we explicitly handle to avoid calling preventDefault on\n                // it.\n                return;\n        }\n        if (oldValue != this.value) {\n            this._emitInputEvent();\n            this._emitChangeEvent();\n        }\n        this._isSliding = true;\n        event.preventDefault();\n    }\n    /**\n     * @return {?}\n     */\n    _onKeyup() {\n        this._isSliding = false;\n    }\n    /**\n     * Use defaultView of injected document if available or fallback to global window reference\n     * @private\n     * @return {?}\n     */\n    _getWindow() {\n        var _a;\n        return ((_a = this._document) === null || _a === void 0 ? void 0 : _a.defaultView) || window;\n    }\n    /**\n     * Binds our global move and end events. They're bound at the document level and only while\n     * dragging so that the user doesn't have to keep their pointer exactly over the slider\n     * as they're swiping across the screen.\n     * @private\n     * @param {?} triggerEvent\n     * @return {?}\n     */\n    _bindGlobalEvents(triggerEvent) {\n        // Note that we bind the events to the `document`, because it allows us to capture\n        // drag cancel events where the user's pointer is outside the browser window.\n        /** @type {?} */\n        const document = this._document;\n        if (typeof document !== 'undefined' && document) {\n            /** @type {?} */\n            const isTouch = isTouchEvent(triggerEvent);\n            /** @type {?} */\n            const moveEventName = isTouch ? 'touchmove' : 'mousemove';\n            /** @type {?} */\n            const endEventName = isTouch ? 'touchend' : 'mouseup';\n            document.addEventListener(moveEventName, this._pointerMove, activeEventOptions);\n            document.addEventListener(endEventName, this._pointerUp, activeEventOptions);\n            if (isTouch) {\n                document.addEventListener('touchcancel', this._pointerUp, activeEventOptions);\n            }\n        }\n        /** @type {?} */\n        const window = this._getWindow();\n        if (typeof window !== 'undefined' && window) {\n            window.addEventListener('blur', this._windowBlur);\n        }\n    }\n    /**\n     * Removes any global event listeners that we may have added.\n     * @private\n     * @return {?}\n     */\n    _removeGlobalEvents() {\n        /** @type {?} */\n        const document = this._document;\n        if (typeof document !== 'undefined' && document) {\n            document.removeEventListener('mousemove', this._pointerMove, activeEventOptions);\n            document.removeEventListener('mouseup', this._pointerUp, activeEventOptions);\n            document.removeEventListener('touchmove', this._pointerMove, activeEventOptions);\n            document.removeEventListener('touchend', this._pointerUp, activeEventOptions);\n            document.removeEventListener('touchcancel', this._pointerUp, activeEventOptions);\n        }\n        /** @type {?} */\n        const window = this._getWindow();\n        if (typeof window !== 'undefined' && window) {\n            window.removeEventListener('blur', this._windowBlur);\n        }\n    }\n    /**\n     * Increments the slider by the given number of steps (negative number decrements).\n     * @private\n     * @param {?} numSteps\n     * @return {?}\n     */\n    _increment(numSteps) {\n        this.value = this._clamp((this.value || 0) + this.step * numSteps, this.min, this.max);\n    }\n    /**\n     * Calculate the new value from the new physical location. The value will always be snapped.\n     * @private\n     * @param {?} pos\n     * @return {?}\n     */\n    _updateValueFromPosition(pos) {\n        if (!this._sliderDimensions) {\n            return;\n        }\n        /** @type {?} */\n        let offset = this.vertical ? this._sliderDimensions.top : this._sliderDimensions.left;\n        /** @type {?} */\n        let size = this.vertical ? this._sliderDimensions.height : this._sliderDimensions.width;\n        /** @type {?} */\n        let posComponent = this.vertical ? pos.y : pos.x;\n        // The exact value is calculated from the event and used to find the closest snap value.\n        /** @type {?} */\n        let percent = this._clamp((posComponent - offset) / size);\n        if (this._shouldInvertMouseCoords()) {\n            percent = 1 - percent;\n        }\n        // Since the steps may not divide cleanly into the max value, if the user\n        // slid to 0 or 100 percent, we jump to the min/max value. This approach\n        // is slightly more intuitive than using `Math.ceil` below, because it\n        // follows the user's pointer closer.\n        if (percent === 0) {\n            this.value = this.min;\n        }\n        else if (percent === 1) {\n            this.value = this.max;\n        }\n        else {\n            /** @type {?} */\n            const exactValue = this._calculateValue(percent);\n            // This calculation finds the closest step by finding the closest\n            // whole number divisible by the step relative to the min.\n            /** @type {?} */\n            const closestValue = Math.round((exactValue - this.min) / this.step) * this.step + this.min;\n            // The value needs to snap to the min and max.\n            this.value = this._clamp(closestValue, this.min, this.max);\n        }\n    }\n    /**\n     * Emits a change event if the current value is different from the last emitted value.\n     * @private\n     * @return {?}\n     */\n    _emitChangeEvent() {\n        this._controlValueAccessorChangeFn(this.value);\n        this.valueChange.emit(this.value);\n        this.change.emit(this._createChangeEvent());\n    }\n    /**\n     * Emits an input event when the current value is different from the last emitted value.\n     * @private\n     * @return {?}\n     */\n    _emitInputEvent() {\n        this.input.emit(this._createChangeEvent());\n    }\n    /**\n     * Updates the amount of space between ticks as a percentage of the width of the slider.\n     * @private\n     * @return {?}\n     */\n    _updateTickIntervalPercent() {\n        if (!this.tickInterval || !this._sliderDimensions) {\n            return;\n        }\n        if (this.tickInterval == 'auto') {\n            /** @type {?} */\n            let trackSize = this.vertical ? this._sliderDimensions.height : this._sliderDimensions.width;\n            /** @type {?} */\n            let pixelsPerStep = trackSize * this.step / (this.max - this.min);\n            /** @type {?} */\n            let stepsPerTick = Math.ceil(MIN_AUTO_TICK_SEPARATION / pixelsPerStep);\n            /** @type {?} */\n            let pixelsPerTick = stepsPerTick * this.step;\n            this._tickIntervalPercent = pixelsPerTick / trackSize;\n        }\n        else {\n            this._tickIntervalPercent = this.tickInterval * this.step / (this.max - this.min);\n        }\n    }\n    /**\n     * Creates a slider change object from the specified value.\n     * @private\n     * @param {?=} value\n     * @return {?}\n     */\n    _createChangeEvent(value = this.value) {\n        /** @type {?} */\n        let event = new MatSliderChange();\n        event.source = this;\n        event.value = value;\n        return event;\n    }\n    /**\n     * Calculates the percentage of the slider that a value is.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _calculatePercentage(value) {\n        return ((value || 0) - this.min) / (this.max - this.min);\n    }\n    /**\n     * Calculates the value a percentage of the slider corresponds to.\n     * @private\n     * @param {?} percentage\n     * @return {?}\n     */\n    _calculateValue(percentage) {\n        return this.min + percentage * (this.max - this.min);\n    }\n    /**\n     * Return a number between two numbers.\n     * @private\n     * @param {?} value\n     * @param {?=} min\n     * @param {?=} max\n     * @return {?}\n     */\n    _clamp(value, min = 0, max = 1) {\n        return Math.max(min, Math.min(value, max));\n    }\n    /**\n     * Get the bounding client rect of the slider track element.\n     * The track is used rather than the native element to ignore the extra space that the thumb can\n     * take up.\n     * @private\n     * @return {?}\n     */\n    _getSliderDimensions() {\n        return this._sliderWrapper ? this._sliderWrapper.nativeElement.getBoundingClientRect() : null;\n    }\n    /**\n     * Focuses the native element.\n     * Currently only used to allow a blur event to fire but will be used with keyboard input later.\n     * @private\n     * @param {?=} options\n     * @return {?}\n     */\n    _focusHostElement(options) {\n        this._elementRef.nativeElement.focus(options);\n    }\n    /**\n     * Blurs the native element.\n     * @private\n     * @return {?}\n     */\n    _blurHostElement() {\n        this._elementRef.nativeElement.blur();\n    }\n    /**\n     * Runs a callback inside of the NgZone, if possible.\n     * @private\n     * @param {?} fn\n     * @return {?}\n     */\n    _runInsideZone(fn) {\n        // @breaking-change 9.0.0 Remove this function once `_ngZone` is a required parameter.\n        this._ngZone ? this._ngZone.run(fn) : fn();\n    }\n    /**\n     * Runs a callback outside of the NgZone, if possible.\n     * @private\n     * @param {?} fn\n     * @return {?}\n     */\n    _runOutsizeZone(fn) {\n        // @breaking-change 9.0.0 Remove this function once `_ngZone` is a required parameter.\n        this._ngZone ? this._ngZone.runOutsideAngular(fn) : fn();\n    }\n    /**\n     * Sets the model value. Implemented as part of ControlValueAccessor.\n     * @param {?} value\n     * @return {?}\n     */\n    writeValue(value) {\n        this.value = value;\n    }\n    /**\n     * Registers a callback to be triggered when the value has changed.\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} fn Callback to be registered.\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._controlValueAccessorChangeFn = fn;\n    }\n    /**\n     * Registers a callback to be triggered when the component is touched.\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} fn Callback to be registered.\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this.onTouched = fn;\n    }\n    /**\n     * Sets whether the component should be disabled.\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} isDisabled\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this.disabled = isDisabled;\n    }\n}\nMatSlider.ɵfac = function MatSlider_Factory(t) { return new (t || MatSlider)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8), ɵngcc0.ɵɵinjectAttribute('tabindex'), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(DOCUMENT, 8)); };\nMatSlider.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatSlider, selectors: [[\"mat-slider\"]], viewQuery: function MatSlider_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._sliderWrapper = _t.first);\n    } }, hostAttrs: [\"role\", \"slider\", 1, \"mat-slider\", \"mat-focus-indicator\"], hostVars: 28, hostBindings: function MatSlider_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"focus\", function MatSlider_focus_HostBindingHandler() { return ctx._onFocus(); })(\"blur\", function MatSlider_blur_HostBindingHandler() { return ctx._onBlur(); })(\"keydown\", function MatSlider_keydown_HostBindingHandler($event) { return ctx._onKeydown($event); })(\"keyup\", function MatSlider_keyup_HostBindingHandler() { return ctx._onKeyup(); })(\"mouseenter\", function MatSlider_mouseenter_HostBindingHandler() { return ctx._onMouseenter(); })(\"selectstart\", function MatSlider_selectstart_HostBindingHandler($event) { return $event.preventDefault(); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵhostProperty(\"tabIndex\", ctx.tabIndex);\n        ɵngcc0.ɵɵattribute(\"aria-disabled\", ctx.disabled)(\"aria-valuemax\", ctx.max)(\"aria-valuemin\", ctx.min)(\"aria-valuenow\", ctx.value)(\"aria-orientation\", ctx.vertical ? \"vertical\" : \"horizontal\");\n        ɵngcc0.ɵɵclassProp(\"mat-slider-disabled\", ctx.disabled)(\"mat-slider-has-ticks\", ctx.tickInterval)(\"mat-slider-horizontal\", !ctx.vertical)(\"mat-slider-axis-inverted\", ctx._invertAxis)(\"mat-slider-invert-mouse-coords\", ctx._shouldInvertMouseCoords())(\"mat-slider-sliding\", ctx._isSliding)(\"mat-slider-thumb-label-showing\", ctx.thumbLabel)(\"mat-slider-vertical\", ctx.vertical)(\"mat-slider-min-value\", ctx._isMinValue)(\"mat-slider-hide-last-tick\", ctx.disabled || ctx._isMinValue && ctx._thumbGap && ctx._invertAxis)(\"_mat-animation-noopable\", ctx._animationMode === \"NoopAnimations\");\n    } }, inputs: { disabled: \"disabled\", color: \"color\", tabIndex: \"tabIndex\", invert: \"invert\", max: \"max\", min: \"min\", value: \"value\", step: \"step\", thumbLabel: \"thumbLabel\", tickInterval: \"tickInterval\", vertical: \"vertical\", displayWith: \"displayWith\" }, outputs: { change: \"change\", input: \"input\", valueChange: \"valueChange\" }, exportAs: [\"matSlider\"], features: [ɵngcc0.ɵɵProvidersFeature([MAT_SLIDER_VALUE_ACCESSOR]), ɵngcc0.ɵɵInheritDefinitionFeature], decls: 13, vars: 6, consts: [[1, \"mat-slider-wrapper\"], [\"sliderWrapper\", \"\"], [1, \"mat-slider-track-wrapper\"], [1, \"mat-slider-track-background\", 3, \"ngStyle\"], [1, \"mat-slider-track-fill\", 3, \"ngStyle\"], [1, \"mat-slider-ticks-container\", 3, \"ngStyle\"], [1, \"mat-slider-ticks\", 3, \"ngStyle\"], [1, \"mat-slider-thumb-container\", 3, \"ngStyle\"], [1, \"mat-slider-focus-ring\"], [1, \"mat-slider-thumb\"], [1, \"mat-slider-thumb-label\"], [1, \"mat-slider-thumb-label-text\"]], template: function MatSlider_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵelementStart(0, \"div\", 0, 1);\n        ɵngcc0.ɵɵelementStart(2, \"div\", 2);\n        ɵngcc0.ɵɵelement(3, \"div\", 3);\n        ɵngcc0.ɵɵelement(4, \"div\", 4);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(5, \"div\", 5);\n        ɵngcc0.ɵɵelement(6, \"div\", 6);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(7, \"div\", 7);\n        ɵngcc0.ɵɵelement(8, \"div\", 8);\n        ɵngcc0.ɵɵelement(9, \"div\", 9);\n        ɵngcc0.ɵɵelementStart(10, \"div\", 10);\n        ɵngcc0.ɵɵelementStart(11, \"span\", 11);\n        ɵngcc0.ɵɵtext(12);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵproperty(\"ngStyle\", ctx._trackBackgroundStyles);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngStyle\", ctx._trackFillStyles);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngStyle\", ctx._ticksContainerStyles);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngStyle\", ctx._ticksStyles);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngStyle\", ctx._thumbContainerStyles);\n        ɵngcc0.ɵɵadvance(5);\n        ɵngcc0.ɵɵtextInterpolate(ctx.displayValue);\n    } }, directives: [ɵngcc3.NgStyle], styles: [\".mat-slider{display:inline-block;position:relative;box-sizing:border-box;padding:8px;outline:none;vertical-align:middle}.mat-slider:not(.mat-slider-disabled):active,.mat-slider.mat-slider-sliding:not(.mat-slider-disabled){cursor:-webkit-grabbing;cursor:grabbing}.mat-slider-wrapper{position:absolute}.mat-slider-track-wrapper{position:absolute;top:0;left:0;overflow:hidden}.mat-slider-track-fill{position:absolute;transform-origin:0 0;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-track-background{position:absolute;transform-origin:100% 100%;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-ticks-container{position:absolute;left:0;top:0;overflow:hidden}.mat-slider-ticks{background-repeat:repeat;background-clip:content-box;box-sizing:border-box;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-thumb-container{position:absolute;z-index:1;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-focus-ring{position:absolute;width:30px;height:30px;border-radius:50%;transform:scale(0);opacity:0;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1),opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider.cdk-keyboard-focused .mat-slider-focus-ring,.mat-slider.cdk-program-focused .mat-slider-focus-ring{transform:scale(1);opacity:1}.mat-slider:not(.mat-slider-disabled):not(.mat-slider-sliding) .mat-slider-thumb-label,.mat-slider:not(.mat-slider-disabled):not(.mat-slider-sliding) .mat-slider-thumb{cursor:-webkit-grab;cursor:grab}.mat-slider-thumb{position:absolute;right:-10px;bottom:-10px;box-sizing:border-box;width:20px;height:20px;border:3px solid transparent;border-radius:50%;transform:scale(0.7);transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1),border-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-thumb-label{display:none;align-items:center;justify-content:center;position:absolute;width:28px;height:28px;border-radius:50%;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),border-radius 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.cdk-high-contrast-active .mat-slider-thumb-label{outline:solid 1px}.mat-slider-thumb-label-text{z-index:1;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-sliding .mat-slider-track-fill,.mat-slider-sliding .mat-slider-track-background,.mat-slider-sliding .mat-slider-thumb-container{transition-duration:0ms}.mat-slider-has-ticks .mat-slider-wrapper::after{content:\\\"\\\";position:absolute;border-width:0;border-style:solid;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-has-ticks.cdk-focused:not(.mat-slider-hide-last-tick) .mat-slider-wrapper::after,.mat-slider-has-ticks:hover:not(.mat-slider-hide-last-tick) .mat-slider-wrapper::after{opacity:1}.mat-slider-has-ticks.cdk-focused:not(.mat-slider-disabled) .mat-slider-ticks,.mat-slider-has-ticks:hover:not(.mat-slider-disabled) .mat-slider-ticks{opacity:1}.mat-slider-thumb-label-showing .mat-slider-focus-ring{display:none}.mat-slider-thumb-label-showing .mat-slider-thumb-label{display:flex}.mat-slider-axis-inverted .mat-slider-track-fill{transform-origin:100% 100%}.mat-slider-axis-inverted .mat-slider-track-background{transform-origin:0 0}.mat-slider:not(.mat-slider-disabled).cdk-focused.mat-slider-thumb-label-showing .mat-slider-thumb{transform:scale(0)}.mat-slider:not(.mat-slider-disabled).cdk-focused .mat-slider-thumb-label{border-radius:50% 50% 0}.mat-slider:not(.mat-slider-disabled).cdk-focused .mat-slider-thumb-label-text{opacity:1}.mat-slider:not(.mat-slider-disabled).cdk-mouse-focused .mat-slider-thumb,.mat-slider:not(.mat-slider-disabled).cdk-touch-focused .mat-slider-thumb,.mat-slider:not(.mat-slider-disabled).cdk-program-focused .mat-slider-thumb{border-width:2px;transform:scale(1)}.mat-slider-disabled .mat-slider-focus-ring{transform:scale(0);opacity:0}.mat-slider-disabled .mat-slider-thumb{border-width:4px;transform:scale(0.5)}.mat-slider-disabled .mat-slider-thumb-label{display:none}.mat-slider-horizontal{height:48px;min-width:128px}.mat-slider-horizontal .mat-slider-wrapper{height:2px;top:23px;left:8px;right:8px}.mat-slider-horizontal .mat-slider-wrapper::after{height:2px;border-left-width:2px;right:0;top:0}.mat-slider-horizontal .mat-slider-track-wrapper{height:2px;width:100%}.mat-slider-horizontal .mat-slider-track-fill{height:2px;width:100%;transform:scaleX(0)}.mat-slider-horizontal .mat-slider-track-background{height:2px;width:100%;transform:scaleX(1)}.mat-slider-horizontal .mat-slider-ticks-container{height:2px;width:100%}.cdk-high-contrast-active .mat-slider-horizontal .mat-slider-ticks-container{height:0;outline:solid 2px;top:1px}.mat-slider-horizontal .mat-slider-ticks{height:2px;width:100%}.mat-slider-horizontal .mat-slider-thumb-container{width:100%;height:0;top:50%}.mat-slider-horizontal .mat-slider-focus-ring{top:-15px;right:-15px}.mat-slider-horizontal .mat-slider-thumb-label{right:-14px;top:-40px;transform:translateY(26px) scale(0.01) rotate(45deg)}.mat-slider-horizontal .mat-slider-thumb-label-text{transform:rotate(-45deg)}.mat-slider-horizontal.cdk-focused .mat-slider-thumb-label{transform:rotate(45deg)}.cdk-high-contrast-active .mat-slider-horizontal.cdk-focused .mat-slider-thumb-label,.cdk-high-contrast-active .mat-slider-horizontal.cdk-focused .mat-slider-thumb-label-text{transform:none}.mat-slider-vertical{width:48px;min-height:128px}.mat-slider-vertical .mat-slider-wrapper{width:2px;top:8px;bottom:8px;left:23px}.mat-slider-vertical .mat-slider-wrapper::after{width:2px;border-top-width:2px;bottom:0;left:0}.mat-slider-vertical .mat-slider-track-wrapper{height:100%;width:2px}.mat-slider-vertical .mat-slider-track-fill{height:100%;width:2px;transform:scaleY(0)}.mat-slider-vertical .mat-slider-track-background{height:100%;width:2px;transform:scaleY(1)}.mat-slider-vertical .mat-slider-ticks-container{width:2px;height:100%}.cdk-high-contrast-active .mat-slider-vertical .mat-slider-ticks-container{width:0;outline:solid 2px;left:1px}.mat-slider-vertical .mat-slider-focus-ring{bottom:-15px;left:-15px}.mat-slider-vertical .mat-slider-ticks{width:2px;height:100%}.mat-slider-vertical .mat-slider-thumb-container{height:100%;width:0;left:50%}.mat-slider-vertical .mat-slider-thumb{-webkit-backface-visibility:hidden;backface-visibility:hidden}.mat-slider-vertical .mat-slider-thumb-label{bottom:-14px;left:-40px;transform:translateX(26px) scale(0.01) rotate(-45deg)}.mat-slider-vertical .mat-slider-thumb-label-text{transform:rotate(45deg)}.mat-slider-vertical.cdk-focused .mat-slider-thumb-label{transform:rotate(-45deg)}[dir=rtl] .mat-slider-wrapper::after{left:0;right:auto}[dir=rtl] .mat-slider-horizontal .mat-slider-track-fill{transform-origin:100% 100%}[dir=rtl] .mat-slider-horizontal .mat-slider-track-background{transform-origin:0 0}[dir=rtl] .mat-slider-horizontal.mat-slider-axis-inverted .mat-slider-track-fill{transform-origin:0 0}[dir=rtl] .mat-slider-horizontal.mat-slider-axis-inverted .mat-slider-track-background{transform-origin:100% 100%}.mat-slider._mat-animation-noopable .mat-slider-track-fill,.mat-slider._mat-animation-noopable .mat-slider-track-background,.mat-slider._mat-animation-noopable .mat-slider-ticks,.mat-slider._mat-animation-noopable .mat-slider-thumb-container,.mat-slider._mat-animation-noopable .mat-slider-focus-ring,.mat-slider._mat-animation-noopable .mat-slider-thumb,.mat-slider._mat-animation-noopable .mat-slider-thumb-label,.mat-slider._mat-animation-noopable .mat-slider-thumb-label-text,.mat-slider._mat-animation-noopable .mat-slider-has-ticks .mat-slider-wrapper::after{transition:none}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatSlider.ctorParameters = () => [\n    { type: ElementRef },\n    { type: FocusMonitor },\n    { type: ChangeDetectorRef },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [DOCUMENT,] }] }\n];\nMatSlider.propDecorators = {\n    invert: [{ type: Input }],\n    max: [{ type: Input }],\n    min: [{ type: Input }],\n    step: [{ type: Input }],\n    thumbLabel: [{ type: Input }],\n    tickInterval: [{ type: Input }],\n    value: [{ type: Input }],\n    displayWith: [{ type: Input }],\n    vertical: [{ type: Input }],\n    change: [{ type: Output }],\n    input: [{ type: Output }],\n    valueChange: [{ type: Output }],\n    _sliderWrapper: [{ type: ViewChild, args: ['sliderWrapper',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSlider, [{\n        type: Component,\n        args: [{\n                selector: 'mat-slider',\n                exportAs: 'matSlider',\n                providers: [MAT_SLIDER_VALUE_ACCESSOR],\n                host: {\n                    '(focus)': '_onFocus()',\n                    '(blur)': '_onBlur()',\n                    '(keydown)': '_onKeydown($event)',\n                    '(keyup)': '_onKeyup()',\n                    '(mouseenter)': '_onMouseenter()',\n                    // On Safari starting to slide temporarily triggers text selection mode which\n                    // show the wrong cursor. We prevent it by stopping the `selectstart` event.\n                    '(selectstart)': '$event.preventDefault()',\n                    'class': 'mat-slider mat-focus-indicator',\n                    'role': 'slider',\n                    '[tabIndex]': 'tabIndex',\n                    '[attr.aria-disabled]': 'disabled',\n                    '[attr.aria-valuemax]': 'max',\n                    '[attr.aria-valuemin]': 'min',\n                    '[attr.aria-valuenow]': 'value',\n                    '[attr.aria-orientation]': 'vertical ? \"vertical\" : \"horizontal\"',\n                    '[class.mat-slider-disabled]': 'disabled',\n                    '[class.mat-slider-has-ticks]': 'tickInterval',\n                    '[class.mat-slider-horizontal]': '!vertical',\n                    '[class.mat-slider-axis-inverted]': '_invertAxis',\n                    // Class binding which is only used by the test harness as there is no other\n                    // way for the harness to detect if mouse coordinates need to be inverted.\n                    '[class.mat-slider-invert-mouse-coords]': '_shouldInvertMouseCoords()',\n                    '[class.mat-slider-sliding]': '_isSliding',\n                    '[class.mat-slider-thumb-label-showing]': 'thumbLabel',\n                    '[class.mat-slider-vertical]': 'vertical',\n                    '[class.mat-slider-min-value]': '_isMinValue',\n                    '[class.mat-slider-hide-last-tick]': 'disabled || _isMinValue && _thumbGap && _invertAxis',\n                    '[class._mat-animation-noopable]': '_animationMode === \"NoopAnimations\"'\n                },\n                template: \"<div class=\\\"mat-slider-wrapper\\\" #sliderWrapper>\\n  <div class=\\\"mat-slider-track-wrapper\\\">\\n    <div class=\\\"mat-slider-track-background\\\" [ngStyle]=\\\"_trackBackgroundStyles\\\"></div>\\n    <div class=\\\"mat-slider-track-fill\\\" [ngStyle]=\\\"_trackFillStyles\\\"></div>\\n  </div>\\n  <div class=\\\"mat-slider-ticks-container\\\" [ngStyle]=\\\"_ticksContainerStyles\\\">\\n    <div class=\\\"mat-slider-ticks\\\" [ngStyle]=\\\"_ticksStyles\\\"></div>\\n  </div>\\n  <div class=\\\"mat-slider-thumb-container\\\" [ngStyle]=\\\"_thumbContainerStyles\\\">\\n    <div class=\\\"mat-slider-focus-ring\\\"></div>\\n    <div class=\\\"mat-slider-thumb\\\"></div>\\n    <div class=\\\"mat-slider-thumb-label\\\">\\n      <span class=\\\"mat-slider-thumb-label-text\\\">{{displayValue}}</span>\\n    </div>\\n  </div>\\n</div>\\n\",\n                inputs: ['disabled', 'color', 'tabIndex'],\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\".mat-slider{display:inline-block;position:relative;box-sizing:border-box;padding:8px;outline:none;vertical-align:middle}.mat-slider:not(.mat-slider-disabled):active,.mat-slider.mat-slider-sliding:not(.mat-slider-disabled){cursor:-webkit-grabbing;cursor:grabbing}.mat-slider-wrapper{position:absolute}.mat-slider-track-wrapper{position:absolute;top:0;left:0;overflow:hidden}.mat-slider-track-fill{position:absolute;transform-origin:0 0;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-track-background{position:absolute;transform-origin:100% 100%;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-ticks-container{position:absolute;left:0;top:0;overflow:hidden}.mat-slider-ticks{background-repeat:repeat;background-clip:content-box;box-sizing:border-box;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-thumb-container{position:absolute;z-index:1;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-focus-ring{position:absolute;width:30px;height:30px;border-radius:50%;transform:scale(0);opacity:0;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1),opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider.cdk-keyboard-focused .mat-slider-focus-ring,.mat-slider.cdk-program-focused .mat-slider-focus-ring{transform:scale(1);opacity:1}.mat-slider:not(.mat-slider-disabled):not(.mat-slider-sliding) .mat-slider-thumb-label,.mat-slider:not(.mat-slider-disabled):not(.mat-slider-sliding) .mat-slider-thumb{cursor:-webkit-grab;cursor:grab}.mat-slider-thumb{position:absolute;right:-10px;bottom:-10px;box-sizing:border-box;width:20px;height:20px;border:3px solid transparent;border-radius:50%;transform:scale(0.7);transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1),border-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-thumb-label{display:none;align-items:center;justify-content:center;position:absolute;width:28px;height:28px;border-radius:50%;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),border-radius 400ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.cdk-high-contrast-active .mat-slider-thumb-label{outline:solid 1px}.mat-slider-thumb-label-text{z-index:1;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-sliding .mat-slider-track-fill,.mat-slider-sliding .mat-slider-track-background,.mat-slider-sliding .mat-slider-thumb-container{transition-duration:0ms}.mat-slider-has-ticks .mat-slider-wrapper::after{content:\\\"\\\";position:absolute;border-width:0;border-style:solid;opacity:0;transition:opacity 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-slider-has-ticks.cdk-focused:not(.mat-slider-hide-last-tick) .mat-slider-wrapper::after,.mat-slider-has-ticks:hover:not(.mat-slider-hide-last-tick) .mat-slider-wrapper::after{opacity:1}.mat-slider-has-ticks.cdk-focused:not(.mat-slider-disabled) .mat-slider-ticks,.mat-slider-has-ticks:hover:not(.mat-slider-disabled) .mat-slider-ticks{opacity:1}.mat-slider-thumb-label-showing .mat-slider-focus-ring{display:none}.mat-slider-thumb-label-showing .mat-slider-thumb-label{display:flex}.mat-slider-axis-inverted .mat-slider-track-fill{transform-origin:100% 100%}.mat-slider-axis-inverted .mat-slider-track-background{transform-origin:0 0}.mat-slider:not(.mat-slider-disabled).cdk-focused.mat-slider-thumb-label-showing .mat-slider-thumb{transform:scale(0)}.mat-slider:not(.mat-slider-disabled).cdk-focused .mat-slider-thumb-label{border-radius:50% 50% 0}.mat-slider:not(.mat-slider-disabled).cdk-focused .mat-slider-thumb-label-text{opacity:1}.mat-slider:not(.mat-slider-disabled).cdk-mouse-focused .mat-slider-thumb,.mat-slider:not(.mat-slider-disabled).cdk-touch-focused .mat-slider-thumb,.mat-slider:not(.mat-slider-disabled).cdk-program-focused .mat-slider-thumb{border-width:2px;transform:scale(1)}.mat-slider-disabled .mat-slider-focus-ring{transform:scale(0);opacity:0}.mat-slider-disabled .mat-slider-thumb{border-width:4px;transform:scale(0.5)}.mat-slider-disabled .mat-slider-thumb-label{display:none}.mat-slider-horizontal{height:48px;min-width:128px}.mat-slider-horizontal .mat-slider-wrapper{height:2px;top:23px;left:8px;right:8px}.mat-slider-horizontal .mat-slider-wrapper::after{height:2px;border-left-width:2px;right:0;top:0}.mat-slider-horizontal .mat-slider-track-wrapper{height:2px;width:100%}.mat-slider-horizontal .mat-slider-track-fill{height:2px;width:100%;transform:scaleX(0)}.mat-slider-horizontal .mat-slider-track-background{height:2px;width:100%;transform:scaleX(1)}.mat-slider-horizontal .mat-slider-ticks-container{height:2px;width:100%}.cdk-high-contrast-active .mat-slider-horizontal .mat-slider-ticks-container{height:0;outline:solid 2px;top:1px}.mat-slider-horizontal .mat-slider-ticks{height:2px;width:100%}.mat-slider-horizontal .mat-slider-thumb-container{width:100%;height:0;top:50%}.mat-slider-horizontal .mat-slider-focus-ring{top:-15px;right:-15px}.mat-slider-horizontal .mat-slider-thumb-label{right:-14px;top:-40px;transform:translateY(26px) scale(0.01) rotate(45deg)}.mat-slider-horizontal .mat-slider-thumb-label-text{transform:rotate(-45deg)}.mat-slider-horizontal.cdk-focused .mat-slider-thumb-label{transform:rotate(45deg)}.cdk-high-contrast-active .mat-slider-horizontal.cdk-focused .mat-slider-thumb-label,.cdk-high-contrast-active .mat-slider-horizontal.cdk-focused .mat-slider-thumb-label-text{transform:none}.mat-slider-vertical{width:48px;min-height:128px}.mat-slider-vertical .mat-slider-wrapper{width:2px;top:8px;bottom:8px;left:23px}.mat-slider-vertical .mat-slider-wrapper::after{width:2px;border-top-width:2px;bottom:0;left:0}.mat-slider-vertical .mat-slider-track-wrapper{height:100%;width:2px}.mat-slider-vertical .mat-slider-track-fill{height:100%;width:2px;transform:scaleY(0)}.mat-slider-vertical .mat-slider-track-background{height:100%;width:2px;transform:scaleY(1)}.mat-slider-vertical .mat-slider-ticks-container{width:2px;height:100%}.cdk-high-contrast-active .mat-slider-vertical .mat-slider-ticks-container{width:0;outline:solid 2px;left:1px}.mat-slider-vertical .mat-slider-focus-ring{bottom:-15px;left:-15px}.mat-slider-vertical .mat-slider-ticks{width:2px;height:100%}.mat-slider-vertical .mat-slider-thumb-container{height:100%;width:0;left:50%}.mat-slider-vertical .mat-slider-thumb{-webkit-backface-visibility:hidden;backface-visibility:hidden}.mat-slider-vertical .mat-slider-thumb-label{bottom:-14px;left:-40px;transform:translateX(26px) scale(0.01) rotate(-45deg)}.mat-slider-vertical .mat-slider-thumb-label-text{transform:rotate(45deg)}.mat-slider-vertical.cdk-focused .mat-slider-thumb-label{transform:rotate(-45deg)}[dir=rtl] .mat-slider-wrapper::after{left:0;right:auto}[dir=rtl] .mat-slider-horizontal .mat-slider-track-fill{transform-origin:100% 100%}[dir=rtl] .mat-slider-horizontal .mat-slider-track-background{transform-origin:0 0}[dir=rtl] .mat-slider-horizontal.mat-slider-axis-inverted .mat-slider-track-fill{transform-origin:0 0}[dir=rtl] .mat-slider-horizontal.mat-slider-axis-inverted .mat-slider-track-background{transform-origin:100% 100%}.mat-slider._mat-animation-noopable .mat-slider-track-fill,.mat-slider._mat-animation-noopable .mat-slider-track-background,.mat-slider._mat-animation-noopable .mat-slider-ticks,.mat-slider._mat-animation-noopable .mat-slider-thumb-container,.mat-slider._mat-animation-noopable .mat-slider-focus-ring,.mat-slider._mat-animation-noopable .mat-slider-thumb,.mat-slider._mat-animation-noopable .mat-slider-thumb-label,.mat-slider._mat-animation-noopable .mat-slider-thumb-label-text,.mat-slider._mat-animation-noopable .mat-slider-has-ticks .mat-slider-wrapper::after{transition:none}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc1.FocusMonitor }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc2.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: String, decorators: [{\n                type: Attribute,\n                args: ['tabindex']\n            }] }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [DOCUMENT]\n            }] }]; }, { change: [{\n            type: Output\n        }], input: [{\n            type: Output\n        }], valueChange: [{\n            type: Output\n        }], invert: [{\n            type: Input\n        }], max: [{\n            type: Input\n        }], min: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }], step: [{\n            type: Input\n        }], thumbLabel: [{\n            type: Input\n        }], tickInterval: [{\n            type: Input\n        }], vertical: [{\n            type: Input\n        }], displayWith: [{\n            type: Input\n        }], _sliderWrapper: [{\n            type: ViewChild,\n            args: ['sliderWrapper']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_invert;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_max;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_min;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_step;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_thumbLabel;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_tickInterval;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_value;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_vertical;\n    /** @type {?} */\n    MatSlider.ngAcceptInputType_disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._invert;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._max;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._min;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._step;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._thumbLabel;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._tickInterval;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._value;\n    /**\n     * Function that will be used to format the value before it is displayed\n     * in the thumb label. Can be used to format very large number in order\n     * for them to fit into the slider thumb.\n     * @type {?}\n     */\n    MatSlider.prototype.displayWith;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._vertical;\n    /**\n     * Event emitted when the slider value has changed.\n     * @type {?}\n     */\n    MatSlider.prototype.change;\n    /**\n     * Event emitted when the slider thumb moves.\n     * @type {?}\n     */\n    MatSlider.prototype.input;\n    /**\n     * Emits when the raw value of the slider changes. This is here primarily\n     * to facilitate the two-way binding for the `value` input.\n     * \\@docs-private\n     * @type {?}\n     */\n    MatSlider.prototype.valueChange;\n    /**\n     * onTouch function registered via registerOnTouch (ControlValueAccessor).\n     * @type {?}\n     */\n    MatSlider.prototype.onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._percent;\n    /**\n     * Whether or not the thumb is sliding.\n     * Used to determine if there should be a transition for the thumb and fill track.\n     * @type {?}\n     */\n    MatSlider.prototype._isSliding;\n    /**\n     * Whether or not the slider is active (clicked or sliding).\n     * Used to shrink and grow the thumb as according to the Material Design spec.\n     * @type {?}\n     */\n    MatSlider.prototype._isActive;\n    /**\n     * The size of a tick interval as a percentage of the size of the track.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._tickIntervalPercent;\n    /**\n     * The dimensions of the slider.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._sliderDimensions;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._controlValueAccessorChangeFn;\n    /**\n     * Decimal places to round to, based on the step amount.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._roundToDecimal;\n    /**\n     * Subscription to the Directionality change EventEmitter.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._dirChangeSubscription;\n    /**\n     * The value of the slider when the slide start event fires.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._valueOnSlideStart;\n    /**\n     * Position of the pointer when the dragging started.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._pointerPositionOnStart;\n    /**\n     * Reference to the inner slider wrapper element.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._sliderWrapper;\n    /**\n     * Keeps track of the last pointer event that was captured by the slider.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._lastPointerEvent;\n    /**\n     * Used to subscribe to global move and end events\n     * @type {?}\n     * @protected\n     */\n    MatSlider.prototype._document;\n    /**\n     * Called when the user has put their pointer down on the slider.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._pointerDown;\n    /**\n     * Called when the user has moved their pointer after\n     * starting to drag. Bound on the document level.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._pointerMove;\n    /**\n     * Called when the user has lifted their pointer. Bound on the document level.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._pointerUp;\n    /**\n     * Called when the window has lost focus.\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._windowBlur;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._focusMonitor;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._dir;\n    /** @type {?} */\n    MatSlider.prototype._animationMode;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlider.prototype._ngZone;\n}\n/**\n * Returns whether an event is a touch event.\n * @param {?} event\n * @return {?}\n */\nfunction isTouchEvent(event) {\n    // This function is called for every pixel that the user has dragged so we need it to be\n    // as fast as possible. Since we only bind mouse events and touch events, we can assume\n    // that if the event's name starts with `t`, it's a touch event.\n    return event.type[0] === 't';\n}\n/**\n * Gets the coordinates of a touch or mouse event relative to the viewport.\n * @param {?} event\n * @return {?}\n */\nfunction getPointerPositionOnPage(event) {\n    // `touches` will be empty for start/end events so we have to fall back to `changedTouches`.\n    /** @type {?} */\n    const point = isTouchEvent(event) ? (event.touches[0] || event.changedTouches[0]) : event;\n    return { x: point.clientX, y: point.clientY };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slider/slider-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatSliderModule {\n}\nMatSliderModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatSliderModule });\nMatSliderModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatSliderModule_Factory(t) { return new (t || MatSliderModule)(); }, imports: [[CommonModule, MatCommonModule], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatSliderModule, { declarations: function () { return [MatSlider]; }, imports: function () { return [CommonModule, MatCommonModule]; }, exports: function () { return [MatSlider, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSliderModule, [{\n        type: NgModule,\n        args: [{\n                imports: [CommonModule, MatCommonModule],\n                exports: [MatSlider, MatCommonModule],\n                declarations: [MatSlider]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slider/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_SLIDER_VALUE_ACCESSOR, MatSlider, MatSliderChange, MatSliderModule };\n\n//# sourceMappingURL=slider.js.map","import {ElementRef, Injectable} from '@angular/core';\r\nimport {OverlayPanel} from 'common/core/ui/overlay-panel/overlay-panel.service';\r\nimport {OverlayPanelRef} from 'common/core/ui/overlay-panel/overlay-panel-ref';\r\nimport {ObjectsPanelComponent} from '../panels/objects-panel/objects-panel.component';\r\nimport {CanvasStateService} from '../../image-editor/canvas/canvas-state.service';\r\nimport {OpenSampleImagePanelService} from '../panels/open-sample-image-panel/open-sample-image-panel.service';\r\nimport {HistoryPanelComponent} from '../panels/history-panel/history-panel.component';\r\nimport {ExportPanelComponent} from '../panels/export-panel/export-panel.component';\r\nimport {OverlayPanelConfig} from '@common/core/ui/overlay-panel/overlay-panel-config';\r\nimport {BreakpointsService} from '@common/core/ui/breakpoints.service';\r\nimport {Modal} from '@common/core/ui/dialogs/modal.service';\r\nimport {ImageLoadingPanelComponent} from '../panels/image-loading-panel/image-loading-panel.component';\r\n\r\n@Injectable()\r\nexport class FloatingPanelsService {\r\n    private historyPanelRef: OverlayPanelRef<HistoryPanelComponent>;\r\n    private objectsPanelRef: OverlayPanelRef<ObjectsPanelComponent>;\r\n    private imageLoadingPanelRef: OverlayPanelRef<ImageLoadingPanelComponent>;\r\n\r\n    constructor(\r\n        private overlayPanel: OverlayPanel,\r\n        private state: CanvasStateService,\r\n        private openSampleImageDialog: OpenSampleImagePanelService,\r\n        private breakpoints: BreakpointsService,\r\n        private dialog: Modal,\r\n    ) {}\r\n\r\n    public openSampleImagePanel() {\r\n        this.openSampleImageDialog.open();\r\n    }\r\n\r\n    public openExportPanel() {\r\n        this.dialog.open(ExportPanelComponent, null, {panelClass: 'export-panel-dialog-container'});\r\n    }\r\n\r\n    public toggleHistory() {\r\n        this.closePanel('objects');\r\n\r\n        if (this.panelIsOpen('history')) {\r\n            this.historyPanelRef.close();\r\n        } else {\r\n            this.openHistoryPanel();\r\n        }\r\n    }\r\n\r\n    public toggleObjects() {\r\n        this.closePanel('history');\r\n\r\n        if (this.panelIsOpen('objects')) {\r\n            this.objectsPanelRef.close();\r\n        } else {\r\n            this.openObjectsPanel();\r\n        }\r\n    }\r\n\r\n    public openHistoryPanel() {\r\n        this.historyPanelRef = this.overlayPanel.open(\r\n            HistoryPanelComponent,\r\n            this.getPanelConfig(),\r\n        );\r\n    }\r\n\r\n    public openObjectsPanel() {\r\n        this.objectsPanelRef = this.overlayPanel.open(\r\n            ObjectsPanelComponent,\r\n            this.getPanelConfig(),\r\n        );\r\n    }\r\n\r\n    public closePanel(name: 'history' | 'objects' | 'objectOptions') {\r\n        switch (name) {\r\n            case 'history':\r\n                this.historyPanelRef && this.historyPanelRef.close();\r\n                break;\r\n            case 'objects':\r\n                this.objectsPanelRef && this.objectsPanelRef.close();\r\n                break;\r\n        }\r\n    }\r\n\r\n    public panelIsOpen(name: 'history' | 'objects'): boolean {\r\n        const ref = (name === 'history' ? this.historyPanelRef : this.objectsPanelRef);\r\n        return ref && ref.isOpen();\r\n    }\r\n\r\n    private getPanelConfig(): OverlayPanelConfig {\r\n        return {\r\n            hasBackdrop: false,\r\n            positionStrategy: this.getPositionStrategy(),\r\n            panelClass: ['floating-panel-container', this.breakpoints.isMobile$.value ? 'is-mobile' : null],\r\n        };\r\n    }\r\n\r\n    private getPositionStrategy() {\r\n        if (this.breakpoints.isMobile$.value) {\r\n            return this.overlayPanel.overlay.position()\r\n                .flexibleConnectedTo(new ElementRef(this.state.wrapperEl))\r\n                .withPositions([{overlayX: 'center', overlayY: 'center', originX: 'center', originY: 'center'}]);\r\n        }\r\n\r\n        return this.overlayPanel.overlay.position()\r\n            .flexibleConnectedTo(new ElementRef(this.state.wrapperEl))\r\n            .withPositions([{\r\n                overlayX: 'end',\r\n                overlayY: 'bottom',\r\n                originX: 'end',\r\n                originY: 'bottom',\r\n                offsetY: -10,\r\n                offsetX: -10\r\n            }]);\r\n    }\r\n\r\n    public toggleImageLoading() {\r\n        if ( ! this.imageLoadingPanelRef) {\r\n            this.imageLoadingPanelRef = this.overlayPanel.open(ImageLoadingPanelComponent, {});\r\n        } else {\r\n            this.imageLoadingPanelRef.close();\r\n            this.imageLoadingPanelRef = null;\r\n        }\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport {MatDialog, MatDialogConfig, MatDialogRef} from '@angular/material/dialog';\r\nimport { ComponentType } from '@angular/cdk/portal';\r\n\r\n@Injectable({\r\n    providedIn: 'root',\r\n})\r\nexport class Modal {\r\n    constructor(private dialog: MatDialog) {}\r\n\r\n    public open<T>(component: ComponentType<T>, data: object = {}, config: string|MatDialogConfig = {}): MatDialogRef<T> {\r\n        if ( ! data) data = {};\r\n\r\n        if (typeof config === 'string') {\r\n            config = {panelClass: config};\r\n        }\r\n        if ( ! Array.isArray(config.panelClass)) {\r\n            config.panelClass = [config.panelClass];\r\n        }\r\n        if (typeof config.restoreFocus === 'undefined') {\r\n            config.restoreFocus = false;\r\n        }\r\n        config.panelClass.push('be-modal');\r\n\r\n        return this.dialog.open(component, {...config, data});\r\n    }\r\n\r\n    public show<T>(component: ComponentType<T>, data: object = {}): MatDialogRef<T> {\r\n        return this.open(component, data);\r\n    }\r\n\r\n    public anyDialogOpen(): boolean {\r\n        return this.dialog.openDialogs.length > 0;\r\n    }\r\n\r\n    public closeAll() {\r\n        this.dialog.closeAll();\r\n    }\r\n}\r\n","import { Component, OnInit, ViewEncapsulation } from '@angular/core';\n\n@Component({\n  selector: 'image-loading-panel',\n  templateUrl: './image-loading-panel.component.html',\n  styleUrls: ['./image-loading-panel.component.scss'],\n  encapsulation: ViewEncapsulation.None\n})\nexport class ImageLoadingPanelComponent implements OnInit {\n\n  constructor() { }\n\n  ngOnInit(): void {\n  }\n\n}\n","import {ChangeDetectionStrategy, Component, OnInit, ViewEncapsulation} from '@angular/core';\nimport {FormControl, FormGroup} from '@angular/forms';\nimport {ExportToolService} from '../../../image-editor/tools/export/export-tool.service';\nimport {BehaviorSubject} from 'rxjs';\nimport { MatDialogRef } from '@angular/material/dialog';\nimport {Settings} from '@common/core/config/settings.service';\n\n@Component({\n    selector: 'export-panel',\n    templateUrl: './export-panel.component.html',\n    styleUrls: ['./export-panel.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None\n})\nexport class ExportPanelComponent implements OnInit {\n    public quality$ = new BehaviorSubject(this.config.get('pixie.tools.export.defaultQuality') * 10);\n    public exportForm = new FormGroup({\n        name: new FormControl(this.config.get('pixie.tools.export.defaultName')),\n        format: new FormControl(this.config.get('pixie.tools.export.defaultFormat')),\n        quality: new FormControl(this.config.get('pixie.tools.export.defaultQuality')),\n    });\n\n    constructor(\n        private config: Settings,\n        private exportTool: ExportToolService,\n        private dialogRef: MatDialogRef<ExportPanelComponent>,\n    ) {}\n\n    ngOnInit() {\n        this.exportForm.get('format').valueChanges.subscribe(value => {\n            if (value !== 'jpeg') {\n                this.exportForm.get('quality').disable();\n            } else {\n                this.exportForm.get('quality').enable();\n            }\n        });\n\n        this.exportForm.get('quality').valueChanges.subscribe(value => {\n            this.quality$.next(value * 10);\n        });\n    }\n\n    public export() {\n        const val = this.exportForm.value;\n        this.exportTool.export(val.name, val.format, val.quality);\n        this.dialogRef.close();\n    }\n}\n","import { Pipe, PipeTransform } from '@angular/core';\r\nimport { Translations } from './translations.service';\r\n\r\n@Pipe({\r\n    name: 'trans',\r\n    pure: true,\r\n})\r\nexport class TransPipe implements PipeTransform {\r\n    constructor(private i18n: Translations) {}\r\n\r\n    transform(value: string): string {\r\n        return this.i18n.t(value);\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {ImportToolService} from './tools/import/import-tool.service';\nimport {SerializedCanvas} from './history/serialized-canvas';\nimport {DEFAULT_CONFIG, PixieConfig} from './default-settings';\nimport {Store} from '@ngxs/store';\nimport {\n    ApplyChanges,\n    CancelChanges,\n    CloseEditor,\n    OpenEditor,\n    OpenPanel,\n    ResetToolState\n} from './state/editor-state-actions';\nimport {delay, pairwise, take} from 'rxjs/operators';\nimport {OpenSampleImagePanelService} from '../image-editor-ui/panels/open-sample-image-panel/open-sample-image-panel.service';\nimport {HistoryToolService} from './history/history-tool.service';\nimport {DrawerName} from '../image-editor-ui/toolbar-controls/drawers/drawer-name.enum';\nimport {EditorState} from './state/editor-state';\nimport {IEvent, Image} from 'fabric/fabric-impl';\nimport {CanvasService} from './canvas/canvas.service';\nimport {Toast, ToastConfig} from '@common/core/ui/toast.service';\nimport {EditorControlsService} from '../image-editor-ui/toolbar-controls/editor-controls.service';\nimport {Settings} from '@common/core/config/settings.service';\nimport * as Dot from 'dot-object';\nimport merge from 'deepmerge';\nimport {HttpClient} from '@angular/common/http';\nimport {lowerFirst} from '@common/core/utils/lower-first';\nimport {ToolsService} from './tools/tools.service';\nimport {ThemeService} from '@common/core/theme.service';\nimport {animationFrameScheduler} from 'rxjs';\n\n/**\n * This class should not be imported into any other tools or services.\n */\n@Injectable({\n    providedIn: 'root'\n})\nexport class ImageEditorService {\n    constructor(\n        protected importTool: ImportToolService,\n        protected canvas: CanvasService,\n        protected history: HistoryToolService,\n        protected store: Store,\n        protected openSampleImagePanel: OpenSampleImagePanelService,\n        protected toast: Toast,\n        protected editorControls: EditorControlsService,\n        protected settings: Settings,\n        protected httpClient: HttpClient,\n        protected tools: ToolsService,\n        protected themes: ThemeService,\n    ) {}\n\n    /**\n     * Open specified image and then editor.\n     */\n    public openEditorWithImage(data: string|HTMLImageElement, asMainImage: boolean = true) {\n        this.openFile(data, 'png', asMainImage).then(() => this.open());\n    }\n\n    /**\n     * Open specified photo as main canvas image.\n     */\n    public openMainImage(data: string|HTMLImageElement) {\n        this.openFile(data, 'png', true);\n    }\n\n    public openFile(data: string|HTMLImageElement, extension: string = 'png', asMainImage: boolean = false) {\n        return asMainImage ?\n            this.importTool.openBackgroundImage(data) :\n            this.importTool.openFile(data, extension);\n    }\n\n    public newCanvas(width: number, height: number) {\n        return this.canvas.openNew(width, height);\n    }\n\n    /**\n     * Load canvas state from specified json data or url.\n     */\n    public loadState(stateOrUrl: string|SerializedCanvas) {\n        this.canvas.state.contentLoadingState$.next({name: 'state', loading: true});\n        let promise: Promise<any>;\n        if (typeof stateOrUrl === 'string' && (stateOrUrl.endsWith('.json') || stateOrUrl.startsWith('http'))) {\n            promise = this.importTool.loadStateFromUrl(stateOrUrl);\n        } else {\n            promise = this.importTool.loadState(stateOrUrl);\n        }\n\n        return promise.then(() => {\n            this.canvas.state.contentLoadingState$.next({name: 'state', loading: false});\n        });\n    }\n\n    public loadStateFromUrl(url: string) {\n        this.importTool.loadStateFromUrl(url);\n    }\n\n    /**\n     * Get current canvas state as json string.\n     */\n    public getState(customProps?: string[]) {\n        return JSON.stringify(this.history.getCurrentCanvasState(customProps));\n    }\n\n    /**\n     * Open editor if it's currently closed.\n     * New configuration can also be optionally specified.\n     */\n    public open(config?: PixieConfig) {\n        if (config) {\n            this.setConfig(config);\n        }\n        // wait for next render cycle so we get proper editor height for fitting to screen\n        this.store.dispatch(new OpenEditor()).pipe(delay(0, animationFrameScheduler)).subscribe(() => {\n            this.canvas.zoom.fitToScreen();\n            this.history.addInitial();\n            if (this.canvas.state.isEmpty() && this.settings.get('pixie.ui.openImageDialog.show')) {\n                this.openSampleImagePanel.open();\n            }\n        });\n    }\n\n    /**\n     * Close editor if it's currently open.\n     */\n    public close() {\n        return this.store.dispatch(new CloseEditor());\n    }\n\n    /**\n     * Apply any pending changes from currently open or specified panel.\n     * This is identical to clicking \"apply\" button in the editor.\n     */\n    public applyChanges(panel?: DrawerName) {\n        panel = panel || this.store.selectSnapshot(EditorState.activePanel) || DrawerName.OBJECT_SETTINGS;\n        this.store.dispatch(new ApplyChanges(panel));\n    }\n\n    /**\n     * Cancel any pending changes from currently open or specified panel.\n     * This is identical to clicking \"cancel\" button in the editor.\n     */\n    public cancelChanges(panel?: DrawerName) {\n        panel = panel || this.store.selectSnapshot(EditorState.activePanel) || DrawerName.OBJECT_SETTINGS;\n        this.store.dispatch(new CancelChanges(panel));\n    }\n\n    /**\n     * Open specified editor panel.\n     * (Filter, crop, resize etc.)\n     */\n    public openPanel(name: DrawerName) {\n        this.store.dispatch(new OpenPanel(name));\n    }\n\n    /**\n     * Listen to specified canvas event.\n     * (List of all available events can be found in the documentation)\n     */\n    public on(event: string, callback: (e: IEvent) => void) {\n        return this.canvas.fabric().on(event, callback);\n    }\n\n    /**\n     * Check if some modifications were made to image,\n     * but \"apply\" button was not clicked yet.\n     */\n    public isDirty() {\n        return this.store.selectSnapshot(EditorState.dirty);\n    }\n\n    /**\n     * Get tool by specified name.\n     */\n    public getTool(name: string) {\n        return this.tools.get(name);\n    }\n\n    /**\n     * Get tool by specified name.\n     */\n    public get(name: string) {\n        return this.getTool(name);\n    }\n\n    /**\n     * Get current position for navigation toolbar.\n     */\n    public getControlsPosition() {\n        return this.store.selectSnapshot(EditorState.navPosition);\n    }\n\n    /**\n     * Display specified notification message on the screen.\n     */\n    public notify(message: string, config?: ToastConfig) {\n        return this.toast.open(message, config);\n    }\n\n    /**\n     * Fully reset editor and canvas state and\n     * optionally override specified configuration.\n     */\n    public resetEditor(key: string|PixieConfig, value?: any) {\n        return new Promise(resolve => {\n            // reset fabric and UI\n            this.importTool.resetEditor();\n\n            // set new config, if provided\n            if (key) this.setConfig(key, value);\n\n            this.store.dispatch([\n                new ResetToolState(),\n            ]);\n\n            // re-init canvas\n            this.loadInitialContent().then(() => {\n                this.editorControls.closeCurrentPanel();\n                if (key) {\n                    this.history.addInitial();\n                }\n                resolve();\n            });\n        });\n    }\n\n    /**\n     * Fully reset and open editor.\n     */\n    public resetAndOpenEditor(key: string|PixieConfig, value?: any) {\n        return this.resetEditor(key, value).then(() => this.open());\n    }\n\n    /**\n     * Override specified configuration.\n     * Accepts configuration object or key value pair using dot notation.\n     */\n    public setConfig(key: string|PixieConfig, value?: any) {\n        // set config if key and value is provided\n        if (typeof key === 'string' && typeof value !== 'undefined') {\n            const prefixedKey = key.indexOf('vebto.') > -1 ? key : 'pixie.' + key;\n            this.settings.set(prefixedKey, value);\n\n            // set config if config object is provided\n        } else if (typeof key === 'object') {\n            const config = {pixie: key};\n\n            if (config.pixie['sentry_public']) {\n                this.settings.set('logging.sentry_public', config.pixie['sentry_public']);\n            }\n            this.settings.merge(config);\n        }\n    }\n\n    /**\n     * Get default configuration without any custom overrides.\n     */\n    public getDefaultConfig(key: string): any {\n        return Dot.pick(key, DEFAULT_CONFIG);\n    }\n\n    /**\n     * Get built in http service for making http requests.\n     */\n    public http(): HttpClient {\n        return this.httpClient;\n    }\n\n    /**\n     * @hidden\n     */\n    public loadInitialContent(): Promise<Image|{width: number, height: number}|void> {\n        let image = this.settings.get('pixie.image'), promise;\n        if (image instanceof HTMLImageElement) image = image.src;\n        const size = this.settings.get('pixie.blankCanvasSize'),\n            state = this.settings.get('pixie.state');\n        if (image) {\n            if (image.endsWith('.json') || image.startsWith('{\"canvas')) {\n                promise = this.loadState(image);\n            } else {\n                promise = this.canvas.loadMainImage(image);\n            }\n        } else if (state) {\n            promise = this.loadState(state);\n        } else if (size) {\n            promise = this.canvas.openNew(size.width, size.height);\n        }\n        return (promise || Promise.resolve()).then(() => {\n            this.canvas.state.loaded.next(true);\n            if (this.canvas.state.isEmpty() && this.settings.get('pixie.ui.openImageDialog.show')) {\n                this.openSampleImagePanel.open();\n            }\n        });\n    }\n\n    /**\n     * @hidden\n     */\n    public static mergeConfig(userConfig: PixieConfig) {\n        const merged = merge(DEFAULT_CONFIG, userConfig || {});\n        return ImageEditorService.replaceDefaultConfigItems(merged, userConfig);\n    }\n\n    /**\n     * Remove default items if \"replaceDefault\" is true in user config.\n     * @hidden\n     */\n    public static replaceDefaultConfigItems(config: object, userConfig: object) {\n        for (const key in config) {\n            if (key.startsWith('replaceDefault') && config[key]) {\n                // \"replaceDefaultSamples\" => \"samples\" or just \"items\"\n                const iterablesKey = lowerFirst((key.replace('replaceDefault', '') || 'items'));\n                config[iterablesKey] = userConfig ? userConfig[iterablesKey] : [];\n            } else if (typeof config[key] === 'object') {\n                ImageEditorService.replaceDefaultConfigItems(config[key], userConfig && userConfig[key]);\n            }\n        }\n\n        return config;\n    }\n}\n","import {Injectable} from '@angular/core';\r\nimport {FilterToolService} from './filter/filter-tool.service';\r\nimport {ResizeToolService} from './resize/resize-tool.service';\r\nimport {TransformToolService} from './transform/transform-tool.service';\r\nimport {CropToolService} from './crop/crop-tool.service';\r\nimport {DrawToolService} from './draw/draw-tool.service';\r\nimport {TextToolService} from './text/text-tool.service';\r\nimport {ShapesToolService} from './shapes/shapes-tool.service';\r\nimport {FrameToolService} from './frame/frame-tool.service';\r\nimport {RoundToolService} from './round/round-tool.service';\r\nimport {ExportToolService} from './export/export-tool.service';\r\nimport {CanvasService} from '../canvas/canvas.service';\r\nimport {WatermarkToolService} from './watermark-tool.service';\r\nimport {HistoryToolService} from '../history/history-tool.service';\r\nimport {ActiveObjectService} from '../canvas/active-object/active-object.service';\r\nimport {ObjectListService} from '../objects/object-list.service';\r\nimport {EditorControlsService} from '../../image-editor-ui/toolbar-controls/editor-controls.service';\r\nimport {CropZoneService} from './crop/crop-zone.service';\r\nimport {MergeToolService} from './merge/merge-tool.service';\r\nimport {ImportToolService} from './import/import-tool.service';\r\nimport {GoogleFontsPanelService} from '../../image-editor-ui/toolbar-controls/widgets/google-fonts-panel/google-fonts-panel.service';\r\nimport {FillToolService} from './fill/fill-tool.service';\r\nimport {FloatingPanelsService} from '../../image-editor-ui/toolbar-controls/floating-panels.service';\r\nimport {CanvasZoomService} from '../canvas/canvas-zoom.service';\r\nimport {Toast} from '@common/core/ui/toast.service';\r\nimport {ThemeService} from '@common/core/theme.service';\r\n\r\n@Injectable()\r\nexport class ToolsService {\r\n    constructor(\r\n        private filterTool: FilterToolService,\r\n        private resizeTool: ResizeToolService,\r\n        private cropTool: CropToolService,\r\n        private transformTool: TransformToolService,\r\n        private drawTool: DrawToolService,\r\n        private textTool: TextToolService,\r\n        private shapesTool: ShapesToolService,\r\n        private frameTool: FrameToolService,\r\n        private cornerTool: RoundToolService,\r\n        private exportTool: ExportToolService,\r\n        private importTool: ImportToolService,\r\n        private canvas: CanvasService,\r\n        private watermark: WatermarkToolService,\r\n        private history: HistoryToolService,\r\n        private activeObject: ActiveObjectService,\r\n        private objectList: ObjectListService,\r\n        private controls: EditorControlsService,\r\n        private cropZone: CropZoneService,\r\n        private mergeTool: MergeToolService,\r\n        private fillTool: FillToolService,\r\n        private fonts: GoogleFontsPanelService,\r\n        private floatingPanels: FloatingPanelsService,\r\n        private zoom: CanvasZoomService,\r\n        private toast: Toast,\r\n        private themes: ThemeService,\r\n    ) {}\r\n\r\n    public get(name: string): any {\r\n        if (name === 'canvas') {\r\n            return this.canvas;\r\n        } else {\r\n            return this[name] || this[name + 'Tool'];\r\n        }\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\nimport {CssTheme} from '@common/core/types/models/CssTheme';\nimport {BehaviorSubject} from 'rxjs';\nimport {Settings} from '@common/core/config/settings.service';\nimport {slugifyString} from '@common/core/utils/slugify-string';\nimport {CookieService} from '@common/core/services/cookie.service';\n\ntype ThemeNames = 'dark' | 'light';\n\ninterface AppCssThemes {\n    dark?: CssTheme;\n    light?: CssTheme;\n    [key: string]: CssTheme;\n}\n\n@Injectable({\n    providedIn: 'root'\n})\nexport class ThemeService {\n    public selectedTheme$ = new BehaviorSubject<CssTheme>(null);\n    private rootEl: HTMLElement;\n    private registeredThemes: AppCssThemes;\n\n    constructor(private cookie: CookieService, private settings: Settings) {\n        this.rootEl = document.documentElement;\n    }\n\n    public registerThemes(themes: AppCssThemes) {\n        this.registeredThemes = themes || {};\n        this.select(this.getPreferredTheme());\n    }\n\n    public select(name: ThemeNames) {\n        const theme = this.registeredThemes[name];\n        if ( ! theme) return;\n        this.selectedTheme$.next(theme);\n        this.setPreferredTheme(name);\n        if (theme.is_dark) {\n            this.rootEl.classList.remove('be-light-mode');\n            this.rootEl.classList.add('be-dark-mode');\n        } else {\n            this.rootEl.classList.remove('be-dark-mode');\n            this.rootEl.classList.add('be-light-mode');\n        }\n        Object.entries(theme.colors).forEach(([key, value]) => {\n            this.rootEl.style.setProperty(key, value);\n        });\n    }\n\n    public toggle() {\n        if (this.selectedTheme$.value.is_dark) {\n            this.select('light');\n        } else {\n            this.select('dark');\n        }\n    }\n\n    public isDarkMode(): boolean {\n        return this.selectedTheme$.value && this.selectedTheme$.value.is_dark;\n    }\n\n    public setRootEl(el: HTMLElement) {\n        this.rootEl = el;\n    }\n    \n    private getPreferredTheme(): ThemeNames {\n        const defaultMode = this.settings.get('themes.default_mode', 'light');\n        if (this.settings.get('themes.user_change')) {\n            return this.cookie.get(this.storageKey()) || defaultMode;\n        } else {\n            return defaultMode;\n        }\n    }\n    \n    private setPreferredTheme(name: ThemeNames) {\n        this.cookie.set(this.storageKey(), name, 90);\n    }\n    \n    private storageKey() {\n        return slugifyString(this.settings.get('branding.site_name')) + '.theme';\n    }\n}\n","import {Injectable} from '@angular/core';\n\n@Injectable({\n    providedIn: 'root'\n})\nexport class CookieService {\n\n    constructor() {\n    }\n\n    public get(name: string): string|number {\n        const regExp: RegExp = this.getCookieRegExp(name);\n        const result: RegExpExecArray = regExp.exec(document.cookie);\n        return result && result[1];\n    }\n\n    public set(name: string, value: string|number, expirationDays = 30) {\n        const exdate = new Date();\n        exdate.setDate(exdate.getDate() + expirationDays);\n        document.cookie = `${name}=${value}; expires=${exdate.toUTCString()}; path=/;`;\n    }\n\n    private getCookieRegExp(name: string): RegExp {\n        const escapedName: string = name.replace( /([\\[\\]\\{\\}\\(\\)\\|\\=\\;\\+\\?\\,\\.\\*\\^\\$])/ig, '\\\\$1' );\n        return new RegExp( '(?:^' + escapedName + '|;\\\\s*' + escapedName + ')=(.*?)(?:;|$)', 'g' );\n    }\n}\n","import {AfterViewInit, Directive, ElementRef, Input} from '@angular/core';\r\nimport {DomSanitizer} from '@angular/platform-browser';\r\nimport {Settings} from 'common/core/config/settings.service';\r\n\r\n@Directive({\r\n    selector: '[backgroundImage]'\r\n})\r\nexport class BackgroundImageDirective implements AfterViewInit {\r\n\r\n    @Input('backgroundImage') url: string;\r\n\r\n    constructor(\r\n        private domSanitizer: DomSanitizer,\r\n        private el: ElementRef,\r\n        private config: Settings,\r\n    ) {}\r\n\r\n    ngAfterViewInit() {\r\n        this.el.nativeElement.style.backgroundImage = this.getStyle();\r\n    }\r\n\r\n    private getStyle(): string {\r\n        return 'url(' + this.config.getAssetUrl(this.url, true) + ')';\r\n    }\r\n}\r\n","import {Injectable} from '@angular/core';\r\nimport {Keybinds} from 'common/core/keybinds/keybinds.service';\r\nimport {ActiveObjectService} from './active-object/active-object.service';\r\nimport {CanvasStateService} from './canvas-state.service';\r\nimport {take} from 'rxjs/operators';\r\n\r\n@Injectable()\r\nexport class CanvasKeybindsService {\r\n    constructor(\r\n        private state: CanvasStateService,\r\n        private keybinds: Keybinds,\r\n        private activeObject: ActiveObjectService,\r\n    ) {}\r\n\r\n    init() {\r\n        this.state.loaded\r\n          .pipe(take(1))\r\n          .subscribe(() => {\r\n            this.keybinds.listenOn(document);\r\n\r\n            this.keybinds.add('arrow_up', e => {\r\n                this.maybePreventDefault(e);\r\n                this.activeObject.move('top', -1);\r\n            });\r\n\r\n            this.keybinds.add('arrow_right', e => {\r\n                this.maybePreventDefault(e);\r\n                this.activeObject.move('left', 1);\r\n            });\r\n\r\n            this.keybinds.add('arrow_down', e => {\r\n                this.maybePreventDefault(e);\r\n                this.activeObject.move('top', 1);\r\n            });\r\n\r\n            this.keybinds.add('arrow_left', e => {\r\n                this.maybePreventDefault(e);\r\n                this.activeObject.move('left', -1);\r\n            });\r\n\r\n            this.keybinds.add('delete', e => {\r\n                this.maybePreventDefault(e);\r\n                if (this.activeObject.isEditing()) return;\r\n                this.activeObject.delete();\r\n            });\r\n        });\r\n    }\r\n\r\n    private maybePreventDefault(e: KeyboardEvent) {\r\n        if ( ! e.preventDefault) return;\r\n        if (document.activeElement.tagName.toLowerCase() === 'pixie-editor') {\r\n            e.preventDefault();\r\n        }\r\n    }\r\n}\r\n","import { Injectable } from '@angular/core';\r\nimport { Keycodes } from './keycodes.enum';\r\nimport { fromEvent, Subscription } from 'rxjs';\r\nimport { DELETE } from '@angular/cdk/keycodes';\r\n\r\ninterface ParsedKeybind {\r\n    ctrl: boolean;\r\n    shift: boolean;\r\n    key: string;\r\n}\r\n\r\n// TODO: refactor so keybinds are stored for a specific \"listenOn\" element instead of globally\r\n\r\n@Injectable({\r\n    providedIn: 'root',\r\n})\r\nexport class Keybinds {\r\n    private bindings = [];\r\n\r\n    public add(keybind: string, callback: (e: KeyboardEvent) => void) {\r\n        this.bindings.push({keybind: this.parseKeybindString(keybind), keybindString: keybind, callback});\r\n    }\r\n\r\n    public addWithPreventDefault(keybind: string, callback: Function) {\r\n        this.bindings.push({keybind: this.parseKeybindString(keybind), keybindString: keybind, callback, preventDefault: true});\r\n    }\r\n\r\n    public listenOn(el: HTMLElement|Document): Subscription {\r\n        return fromEvent(el, 'keydown').subscribe((e: KeyboardEvent) => {\r\n            this.executeBindings(e);\r\n        });\r\n    }\r\n\r\n    private executeBindings(e: KeyboardEvent) {\r\n        this.bindings.forEach(binding => {\r\n            if ( ! this.bindingMatches(binding.keybind, e)) return;\r\n            if (binding.preventDefault && e.preventDefault) e.preventDefault();\r\n            binding.callback(e);\r\n        });\r\n    }\r\n\r\n    private bindingMatches(keybind: ParsedKeybind, e: KeyboardEvent) {\r\n        return Keycodes[keybind.key.toUpperCase()] === e.keyCode && e.ctrlKey === keybind.ctrl && e.shiftKey === keybind.shift;\r\n    }\r\n\r\n    /**\r\n     * Parse keybind string into object.\r\n     */\r\n    private parseKeybindString(keybind: string): ParsedKeybind {\r\n        const parts = keybind.trim().split('+');\r\n        const parsed = {ctrl: false, shift: false, key: ''};\r\n\r\n        parts.forEach(part => {\r\n            part = part.trim().toLowerCase();\r\n\r\n            if (part === 'ctrl') {\r\n                parsed.ctrl = true;\r\n            } else if (part === 'shift') {\r\n                parsed.shift = true;\r\n            } else {\r\n                parsed.key = part;\r\n            }\r\n        });\r\n\r\n        return parsed;\r\n    }\r\n}\r\n","<form (ngSubmit)=\"export()\" [formGroup]=\"exportForm\"  ngNativeValidate>\n    <div class=\"input-container name-input-container\">\n        <label for=\"name\" trans>File Name</label>\n        <input type=\"text\" id=\"name\" formControlName=\"name\" required>\n    </div>\n\n    <mat-radio-group formControlName=\"format\" required>\n        <mat-radio-button value=\"jpeg\">JPEG</mat-radio-button>\n        <mat-radio-button value=\"png\">PNG</mat-radio-button>\n        <mat-radio-button value=\"json\">JSON</mat-radio-button>\n    </mat-radio-group>\n\n    <div class=\"input-container\">\n        <label for=\"quality\" class=\"slider-label\">{{ 'Quality' | trans }} ({{quality$ | async}})</label>\n        <mat-slider formControlName=\"quality\" id=\"quality\" min=\"0.1\" max=\"1\" step=\"0.1\" required></mat-slider>\n    </div>\n\n    <button mat-raised-button color=\"accent\" class=\"save-button\" trans>Save</button>\n</form>\n","<p>image-loading-panel works!</p>\n","import slugify from 'slugify';\r\n\r\nexport function slugifyString(text: string, replacement = '-', strict = false): string {\r\n    if ( ! text) return text;\r\n    let slugified = slugify(text, {\r\n        lower: true,\r\n        replacement,\r\n        strict: strict,\r\n        remove: /[*+~.()'\"!:@?/]/g,\r\n    });\r\n    // some chinese text might not get slugified properly,\r\n    // just replace whitespace with dash in that case\r\n    if ( ! slugified) {\r\n        slugified = text.replace(/\\s+/g, '-').toLowerCase();\r\n    }\r\n    return slugified;\r\n}\r\n","export function lowerFirst(string: string) {\r\n    if ( ! string) return '';\r\n    return (string.charAt(0).toLowerCase() + string.slice(1));\r\n}\r\n","import { Subscriber } from '../Subscriber';\nimport { Observable } from '../Observable';\nimport { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function delayWhen(delayDurationSelector, subscriptionDelay) {\n    if (subscriptionDelay) {\n        return (source) => new SubscriptionDelayObservable(source, subscriptionDelay)\n            .lift(new DelayWhenOperator(delayDurationSelector));\n    }\n    return (source) => source.lift(new DelayWhenOperator(delayDurationSelector));\n}\nclass DelayWhenOperator {\n    constructor(delayDurationSelector) {\n        this.delayDurationSelector = delayDurationSelector;\n    }\n    call(subscriber, source) {\n        return source.subscribe(new DelayWhenSubscriber(subscriber, this.delayDurationSelector));\n    }\n}\nclass DelayWhenSubscriber extends OuterSubscriber {\n    constructor(destination, delayDurationSelector) {\n        super(destination);\n        this.delayDurationSelector = delayDurationSelector;\n        this.completed = false;\n        this.delayNotifierSubscriptions = [];\n        this.index = 0;\n    }\n    notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n        this.destination.next(outerValue);\n        this.removeSubscription(innerSub);\n        this.tryComplete();\n    }\n    notifyError(error, innerSub) {\n        this._error(error);\n    }\n    notifyComplete(innerSub) {\n        const value = this.removeSubscription(innerSub);\n        if (value) {\n            this.destination.next(value);\n        }\n        this.tryComplete();\n    }\n    _next(value) {\n        const index = this.index++;\n        try {\n            const delayNotifier = this.delayDurationSelector(value, index);\n            if (delayNotifier) {\n                this.tryDelay(delayNotifier, value);\n            }\n        }\n        catch (err) {\n            this.destination.error(err);\n        }\n    }\n    _complete() {\n        this.completed = true;\n        this.tryComplete();\n        this.unsubscribe();\n    }\n    removeSubscription(subscription) {\n        subscription.unsubscribe();\n        const subscriptionIdx = this.delayNotifierSubscriptions.indexOf(subscription);\n        if (subscriptionIdx !== -1) {\n            this.delayNotifierSubscriptions.splice(subscriptionIdx, 1);\n        }\n        return subscription.outerValue;\n    }\n    tryDelay(delayNotifier, value) {\n        const notifierSubscription = subscribeToResult(this, delayNotifier, value);\n        if (notifierSubscription && !notifierSubscription.closed) {\n            const destination = this.destination;\n            destination.add(notifierSubscription);\n            this.delayNotifierSubscriptions.push(notifierSubscription);\n        }\n    }\n    tryComplete() {\n        if (this.completed && this.delayNotifierSubscriptions.length === 0) {\n            this.destination.complete();\n        }\n    }\n}\nclass SubscriptionDelayObservable extends Observable {\n    constructor(source, subscriptionDelay) {\n        super();\n        this.source = source;\n        this.subscriptionDelay = subscriptionDelay;\n    }\n    _subscribe(subscriber) {\n        this.subscriptionDelay.subscribe(new SubscriptionDelaySubscriber(subscriber, this.source));\n    }\n}\nclass SubscriptionDelaySubscriber extends Subscriber {\n    constructor(parent, source) {\n        super();\n        this.parent = parent;\n        this.source = source;\n        this.sourceSubscribed = false;\n    }\n    _next(unused) {\n        this.subscribeToSource();\n    }\n    _error(err) {\n        this.unsubscribe();\n        this.parent.error(err);\n    }\n    _complete() {\n        this.unsubscribe();\n        this.subscribeToSource();\n    }\n    subscribeToSource() {\n        if (!this.sourceSubscribed) {\n            this.sourceSubscribed = true;\n            this.unsubscribe();\n            this.source.subscribe(this.parent);\n        }\n    }\n}\n//# sourceMappingURL=delayWhen.js.map","export enum Keycodes {\r\n    ENTER = 13,\r\n    SPACE = 32,\r\n    ESCAPE = 27,\r\n    DELETE = 46,\r\n    ARROW_UP = 38,\r\n    ARROW_RIGHT = 39,\r\n    ARROW_DOWN = 40,\r\n    ARROW_LEFT = 37,\r\n    S = 83,\r\n    N = 78,\r\n    A = 65,\r\n    T = 84,\r\n    B = 66,\r\n    C = 67,\r\n    O = 79,\r\n    P = 80,\r\n    R = 82,\r\n    F = 70,\r\n    Y = 89,\r\n    Z = 90,\r\n}\r\n","import { UploadedFile } from '../uploaded-file';\r\n\r\nexport async function readUploadedFolders(entries: WebKitEntry[]): Promise<UploadedFile[]> {\r\n    let files = [];\r\n\r\n    for (const key in entries) {\r\n        const entry = entries[key];\r\n\r\n        if ( ! entry.isDirectory) {\r\n            files.push(await transformFileEntry(entry as WebKitFileEntry));\r\n        } else {\r\n            files = files.concat(await readDirRecursive(entry as WebKitDirectoryEntry));\r\n        }\r\n    }\r\n\r\n    return files;\r\n}\r\n\r\nasync function readDirRecursive(entry: WebKitDirectoryEntry, files = []) {\r\n    const entries = await readEntries(entry);\r\n\r\n    for (const key in entries) {\r\n        const childEntry = entries[key];\r\n\r\n        if (childEntry.isDirectory) {\r\n            await readDirRecursive(childEntry as WebKitDirectoryEntry, files);\r\n        } else {\r\n            files.push(await transformFileEntry(childEntry as WebKitFileEntry));\r\n        }\r\n    }\r\n\r\n    return files;\r\n}\r\n\r\nfunction readEntries(dir: WebKitDirectoryEntry): Promise<WebKitEntry[]> {\r\n    return new Promise(resolve => {\r\n        const reader = dir.createReader();\r\n        reader.readEntries(entries => resolve(entries as any));\r\n    });\r\n}\r\n\r\nfunction transformFileEntry(entry: WebKitFileEntry) {\r\n    return new Promise(resolve => {\r\n        entry.file((file: any) => {\r\n            resolve(new UploadedFile(file as File, entry.fullPath));\r\n        });\r\n    });\r\n}\r\n","import { Directive, ElementRef, EventEmitter, Input, OnDestroy, OnInit, Output } from '@angular/core';\r\nimport { openUploadWindow } from '../utils/open-upload-window';\r\nimport { UploadedFile } from '../uploaded-file';\r\nimport { readUploadedFolders } from '../utils/read-uploaded-folders';\r\nimport { UploadInputConfig } from '@common/uploads/upload-input-config';\r\n\r\n@Directive({\r\n    selector: '[fileDropzone]',\r\n})\r\nexport class UploadDropzoneDirective implements OnInit, OnDestroy {\r\n    @Input() disableDropzoneClick = false;\r\n    @Input() disableDropzone = false;\r\n    @Input() clickButton: ElementRef;\r\n    @Input('fileDropzone') uploadConfig: UploadInputConfig = {};\r\n    @Output() filesDropped: EventEmitter<UploadedFile[]> = new EventEmitter();\r\n\r\n    constructor(protected el: ElementRef) {}\r\n\r\n    ngOnInit() {\r\n        const el = this.el.nativeElement;\r\n        el.addEventListener('dragenter', (e) => this.handleDragEnter(e));\r\n        el.addEventListener('dragover', (e) => this.handleDragOver(e));\r\n        el.addEventListener('dragleave', (e) => this.handleDragLeave(e));\r\n        el.addEventListener('drop', (e) => this.handleDrop(e));\r\n\r\n        if ( ! this.disableDropzoneClick) {\r\n            const trigger = this.clickButton ? this.clickButton.nativeElement : el;\r\n            trigger.addEventListener('click', () => this.handleClick());\r\n        }\r\n    }\r\n\r\n    ngOnDestroy() {\r\n        this.removeClassesFromDropzone();\r\n    }\r\n\r\n    protected handleClick() {\r\n        if (this.disableDropzone) return;\r\n        openUploadWindow(this.uploadConfig).then(files => {\r\n            this.emitUploadEvent(files);\r\n        });\r\n    }\r\n\r\n    public handleDragEnter(e) {\r\n        if (this.dropzoneDisabled(e)) return;\r\n        this.el.nativeElement.classList.add('file-over-dropzone');\r\n    }\r\n\r\n    public handleDragOver(e) {\r\n        if (e.preventDefault) e.preventDefault();\r\n        e.dataTransfer.dropEffect = this.dropzoneDisabled(e) ? 'none' : 'move';\r\n        return false;\r\n    }\r\n\r\n    public handleDragLeave(e: MouseEvent) {\r\n        const newEl = document.elementFromPoint(e.clientX, e.clientY);\r\n        if (this.el.nativeElement.contains(newEl)) return;\r\n        this.removeClassesFromDropzone();\r\n    }\r\n\r\n    public async handleDrop(e) {\r\n        e.stopPropagation();\r\n        e.preventDefault();\r\n        this.removeClassesFromDropzone();\r\n        if (this.dropzoneDisabled(e) || !e.dataTransfer.items) return;\r\n\r\n        const items = Array.from(e.dataTransfer.items)\r\n            .filter((item: DataTransferItem) => item.kind === 'file')\r\n            .map((item: DataTransferItem) => {\r\n                return item.webkitGetAsEntry();\r\n            });\r\n\r\n        if (items.length) {\r\n            this.emitUploadEvent(await readUploadedFolders(items));\r\n        }\r\n    }\r\n\r\n    protected emitUploadEvent(files: UploadedFile[]) {\r\n        this.filesDropped.emit(files);\r\n    }\r\n\r\n    protected removeClassesFromDropzone() {\r\n        this.el.nativeElement.classList.remove('file-over-dropzone');\r\n    }\r\n\r\n    protected dropzoneDisabled(e: DragEvent) {\r\n        const hasFiles = e.dataTransfer.types.find(type => type.toLowerCase() === 'files');\r\n        return this.disableDropzone || ! hasFiles;\r\n    }\r\n}\r\n","export function startCase(text: string) {\r\n    return text.replace(/([A-Z])/g, ' $1');\r\n}\r\n","<ng-container *ngIf=\"activePanel$ | async as activePanel\">\n    <span *ngIf=\"activePanel !== 'navigation'\" trans>{{getToolDisplayName(activePanel)}}</span>\n    <span *ngIf=\"activePanel === 'navigation'\" trans>Editor</span>\n</ng-container>\n","import {ChangeDetectionStrategy, Component} from '@angular/core';\nimport {startCase} from '@common/core/utils/start-case';\nimport {Select} from '@ngxs/store';\nimport {EditorState} from '../../../../image-editor/state/editor-state';\nimport {Observable} from 'rxjs';\nimport {DrawerName} from '../../drawers/drawer-name.enum';\n\n@Component({\n    selector: 'toolbar-panel-name-widget',\n    templateUrl: './toolbar-panel-name-widget.component.html',\n    styleUrls: ['./toolbar-panel-name-widget.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class ToolbarPanelNameWidgetComponent {\n    @Select(EditorState.activePanel) activePanel$: Observable<DrawerName>;\n\n    public getToolDisplayName(name: string) {\n        return startCase(name);\n    }\n}\n","import { FocusMonitor, FocusKeyManager, isFakeMousedownFromScreenReader } from '@angular/cdk/a11y';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { UP_ARROW, DOWN_ARROW, END, hasModifierKey, HOME, RIGHT_ARROW, LEFT_ARROW, ESCAPE } from '@angular/cdk/keycodes';\nimport { Directive, TemplateRef, ComponentFactoryResolver, ApplicationRef, Injector, ViewContainerRef, Inject, ChangeDetectorRef, InjectionToken, Component, ChangeDetectionStrategy, ViewEncapsulation, ElementRef, Optional, Input, HostListener, QueryList, EventEmitter, NgZone, ContentChildren, ViewChild, ContentChild, Output, Self, NgModule } from '@angular/core';\nimport { Subject, Subscription, merge, of, asapScheduler } from 'rxjs';\nimport { startWith, switchMap, take, filter, takeUntil, delay } from 'rxjs/operators';\nimport { trigger, state, style, transition, group, query, animate } from '@angular/animations';\nimport { TemplatePortal, DomPortalOutlet } from '@angular/cdk/portal';\nimport { DOCUMENT, CommonModule } from '@angular/common';\nimport { mixinDisableRipple, mixinDisabled, MatCommonModule, MatRippleModule } from '@angular/material/core';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { Overlay, OverlayConfig, OverlayModule } from '@angular/cdk/overlay';\nimport { normalizePassiveListenerOptions } from '@angular/cdk/platform';\nimport { CdkScrollableModule } from '@angular/cdk/scrolling';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Animations used by the mat-menu component.\n * Animation duration and timing values are based on:\n * https://material.io/guidelines/components/menus.html#menus-usage\n * \\@docs-private\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/material/core';\nimport * as ɵngcc3 from '@angular/common';\nimport * as ɵngcc4 from '@angular/cdk/overlay';\nimport * as ɵngcc5 from '@angular/cdk/bidi';\n\nconst _c0 = [\"mat-menu-item\", \"\"];\nconst _c1 = [\"*\"];\nfunction _MatMenu_ng_template_0_Template(rf, ctx) { if (rf & 1) {\n    const _r2 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 0);\n    ɵngcc0.ɵɵlistener(\"keydown\", function _MatMenu_ng_template_0_Template_div_keydown_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r2); const ctx_r1 = ɵngcc0.ɵɵnextContext(); return ctx_r1._handleKeydown($event); })(\"click\", function _MatMenu_ng_template_0_Template_div_click_0_listener() { ɵngcc0.ɵɵrestoreView(_r2); const ctx_r3 = ɵngcc0.ɵɵnextContext(); return ctx_r3.closed.emit(\"click\"); })(\"@transformMenu.start\", function _MatMenu_ng_template_0_Template_div_animation_transformMenu_start_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r2); const ctx_r4 = ɵngcc0.ɵɵnextContext(); return ctx_r4._onAnimationStart($event); })(\"@transformMenu.done\", function _MatMenu_ng_template_0_Template_div_animation_transformMenu_done_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r2); const ctx_r5 = ɵngcc0.ɵɵnextContext(); return ctx_r5._onAnimationDone($event); });\n    ɵngcc0.ɵɵelementStart(1, \"div\", 1);\n    ɵngcc0.ɵɵprojection(2);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r0 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"id\", ctx_r0.panelId)(\"ngClass\", ctx_r0._classList)(\"@transformMenu\", ctx_r0._panelAnimationState);\n    ɵngcc0.ɵɵattribute(\"aria-label\", ctx_r0.ariaLabel || null)(\"aria-labelledby\", ctx_r0.ariaLabelledby || null)(\"aria-describedby\", ctx_r0.ariaDescribedby || null);\n} }\nconst matMenuAnimations = {\n    /**\n     * This animation controls the menu panel's entry and exit from the page.\n     *\n     * When the menu panel is added to the DOM, it scales in and fades in its border.\n     *\n     * When the menu panel is removed from the DOM, it simply fades out after a brief\n     * delay to display the ripple.\n     */\n    transformMenu: trigger('transformMenu', [\n        state('void', style({\n            opacity: 0,\n            transform: 'scale(0.8)'\n        })),\n        transition('void => enter', group([\n            query('.mat-menu-content, .mat-mdc-menu-content', animate('100ms linear', style({\n                opacity: 1\n            }))),\n            animate('120ms cubic-bezier(0, 0, 0.2, 1)', style({ transform: 'scale(1)' })),\n        ])),\n        transition('* => void', animate('100ms 25ms linear', style({ opacity: 0 })))\n    ]),\n    /**\n     * This animation fades in the background color and content of the menu panel\n     * after its containing element is scaled in.\n     */\n    fadeInItems: trigger('fadeInItems', [\n        // TODO(crisbeto): this is inside the `transformMenu`\n        // now. Remove next time we do breaking changes.\n        state('showing', style({ opacity: 1 })),\n        transition('void => *', [\n            style({ opacity: 0 }),\n            animate('400ms 100ms cubic-bezier(0.55, 0, 0.55, 0.2)')\n        ])\n    ])\n};\n/**\n * @deprecated\n * \\@breaking-change 8.0.0\n * \\@docs-private\n * @type {?}\n */\nconst fadeInItems = matMenuAnimations.fadeInItems;\n/**\n * @deprecated\n * \\@breaking-change 8.0.0\n * \\@docs-private\n * @type {?}\n */\nconst transformMenu = matMenuAnimations.transformMenu;\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-content.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Menu content that will be rendered lazily once the menu is opened.\n */\nclass MatMenuContent {\n    /**\n     * @param {?} _template\n     * @param {?} _componentFactoryResolver\n     * @param {?} _appRef\n     * @param {?} _injector\n     * @param {?} _viewContainerRef\n     * @param {?} _document\n     * @param {?=} _changeDetectorRef\n     */\n    constructor(_template, _componentFactoryResolver, _appRef, _injector, _viewContainerRef, _document, _changeDetectorRef) {\n        this._template = _template;\n        this._componentFactoryResolver = _componentFactoryResolver;\n        this._appRef = _appRef;\n        this._injector = _injector;\n        this._viewContainerRef = _viewContainerRef;\n        this._document = _document;\n        this._changeDetectorRef = _changeDetectorRef;\n        /**\n         * Emits when the menu content has been attached.\n         */\n        this._attached = new Subject();\n    }\n    /**\n     * Attaches the content with a particular context.\n     * \\@docs-private\n     * @param {?=} context\n     * @return {?}\n     */\n    attach(context = {}) {\n        if (!this._portal) {\n            this._portal = new TemplatePortal(this._template, this._viewContainerRef);\n        }\n        this.detach();\n        if (!this._outlet) {\n            this._outlet = new DomPortalOutlet(this._document.createElement('div'), this._componentFactoryResolver, this._appRef, this._injector);\n        }\n        /** @type {?} */\n        const element = this._template.elementRef.nativeElement;\n        // Because we support opening the same menu from different triggers (which in turn have their\n        // own `OverlayRef` panel), we have to re-insert the host element every time, otherwise we\n        // risk it staying attached to a pane that's no longer in the DOM.\n        (/** @type {?} */ (element.parentNode)).insertBefore(this._outlet.outletElement, element);\n        // When `MatMenuContent` is used in an `OnPush` component, the insertion of the menu\n        // content via `createEmbeddedView` does not cause the content to be seen as \"dirty\"\n        // by Angular. This causes the `@ContentChildren` for menu items within the menu to\n        // not be updated by Angular. By explicitly marking for check here, we tell Angular that\n        // it needs to check for new menu items and update the `@ContentChild` in `MatMenu`.\n        // @breaking-change 9.0.0 Make change detector ref required\n        if (this._changeDetectorRef) {\n            this._changeDetectorRef.markForCheck();\n        }\n        this._portal.attach(this._outlet, context);\n        this._attached.next();\n    }\n    /**\n     * Detaches the content.\n     * \\@docs-private\n     * @return {?}\n     */\n    detach() {\n        if (this._portal.isAttached) {\n            this._portal.detach();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._outlet) {\n            this._outlet.dispose();\n        }\n    }\n}\nMatMenuContent.ɵfac = function MatMenuContent_Factory(t) { return new (t || MatMenuContent)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.TemplateRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ComponentFactoryResolver), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ApplicationRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Injector), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(DOCUMENT), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef)); };\nMatMenuContent.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatMenuContent, selectors: [[\"ng-template\", \"matMenuContent\", \"\"]] });\n/** @nocollapse */\nMatMenuContent.ctorParameters = () => [\n    { type: TemplateRef },\n    { type: ComponentFactoryResolver },\n    { type: ApplicationRef },\n    { type: Injector },\n    { type: ViewContainerRef },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: ChangeDetectorRef }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatMenuContent, [{\n        type: Directive,\n        args: [{\n                selector: 'ng-template[matMenuContent]'\n            }]\n    }], function () { return [{ type: ɵngcc0.TemplateRef }, { type: ɵngcc0.ComponentFactoryResolver }, { type: ɵngcc0.ApplicationRef }, { type: ɵngcc0.Injector }, { type: ɵngcc0.ViewContainerRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc0.ChangeDetectorRef }]; }, null); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._portal;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._outlet;\n    /**\n     * Emits when the menu content has been attached.\n     * @type {?}\n     */\n    MatMenuContent.prototype._attached;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._template;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._componentFactoryResolver;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._appRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._injector;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._viewContainerRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._document;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuContent.prototype._changeDetectorRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Throws an exception for the case when menu trigger doesn't have a valid mat-menu instance\n * \\@docs-private\n * @return {?}\n */\nfunction throwMatMenuMissingError() {\n    throw Error(`matMenuTriggerFor: must pass in an mat-menu instance.\n\n    Example:\n      <mat-menu #menu=\"matMenu\"></mat-menu>\n      <button [matMenuTriggerFor]=\"menu\"></button>`);\n}\n/**\n * Throws an exception for the case when menu's x-position value isn't valid.\n * In other words, it doesn't match 'before' or 'after'.\n * \\@docs-private\n * @return {?}\n */\nfunction throwMatMenuInvalidPositionX() {\n    throw Error(`xPosition value must be either 'before' or after'.\n      Example: <mat-menu xPosition=\"before\" #menu=\"matMenu\"></mat-menu>`);\n}\n/**\n * Throws an exception for the case when menu's y-position value isn't valid.\n * In other words, it doesn't match 'above' or 'below'.\n * \\@docs-private\n * @return {?}\n */\nfunction throwMatMenuInvalidPositionY() {\n    throw Error(`yPosition value must be either 'above' or below'.\n      Example: <mat-menu yPosition=\"above\" #menu=\"matMenu\"></mat-menu>`);\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-panel.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token used to provide the parent menu to menu-specific components.\n * \\@docs-private\n * @type {?}\n */\nconst MAT_MENU_PANEL = new InjectionToken('MAT_MENU_PANEL');\n/**\n * Interface for a custom menu panel that can be used with `matMenuTriggerFor`.\n * \\@docs-private\n * @record\n * @template T\n */\nfunction MatMenuPanel() { }\nif (false) {\n    /** @type {?} */\n    MatMenuPanel.prototype.xPosition;\n    /** @type {?} */\n    MatMenuPanel.prototype.yPosition;\n    /** @type {?} */\n    MatMenuPanel.prototype.overlapTrigger;\n    /** @type {?} */\n    MatMenuPanel.prototype.templateRef;\n    /** @type {?} */\n    MatMenuPanel.prototype.close;\n    /** @type {?|undefined} */\n    MatMenuPanel.prototype.parentMenu;\n    /** @type {?|undefined} */\n    MatMenuPanel.prototype.direction;\n    /** @type {?} */\n    MatMenuPanel.prototype.focusFirstItem;\n    /** @type {?} */\n    MatMenuPanel.prototype.resetActiveItem;\n    /** @type {?|undefined} */\n    MatMenuPanel.prototype.setPositionClasses;\n    /** @type {?|undefined} */\n    MatMenuPanel.prototype.lazyContent;\n    /** @type {?|undefined} */\n    MatMenuPanel.prototype.backdropClass;\n    /** @type {?|undefined} */\n    MatMenuPanel.prototype.hasBackdrop;\n    /** @type {?|undefined} */\n    MatMenuPanel.prototype.panelId;\n    /**\n     * @deprecated To be removed.\n     * \\@breaking-change 8.0.0\n     * @type {?|undefined}\n     */\n    MatMenuPanel.prototype.addItem;\n    /**\n     * @deprecated To be removed.\n     * \\@breaking-change 8.0.0\n     * @type {?|undefined}\n     */\n    MatMenuPanel.prototype.removeItem;\n    /**\n     * @param {?} depth\n     * @return {?}\n     */\n    MatMenuPanel.prototype.setElevation = function (depth) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-item.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Boilerplate for applying mixins to MatMenuItem.\n/**\n * \\@docs-private\n */\nclass MatMenuItemBase {\n}\n/** @type {?} */\nconst _MatMenuItemMixinBase = mixinDisableRipple(mixinDisabled(MatMenuItemBase));\n/**\n * Single item inside of a `mat-menu`. Provides the menu item styling and accessibility treatment.\n */\nclass MatMenuItem extends _MatMenuItemMixinBase {\n    /**\n     * @param {?} _elementRef\n     * @param {?=} document\n     * @param {?=} _focusMonitor\n     * @param {?=} _parentMenu\n     */\n    constructor(_elementRef, document, _focusMonitor, _parentMenu) {\n        // @breaking-change 8.0.0 make `_focusMonitor` and `document` required params.\n        super();\n        this._elementRef = _elementRef;\n        this._focusMonitor = _focusMonitor;\n        this._parentMenu = _parentMenu;\n        /**\n         * ARIA role for the menu item.\n         */\n        this.role = 'menuitem';\n        /**\n         * Stream that emits when the menu item is hovered.\n         */\n        this._hovered = new Subject();\n        /**\n         * Stream that emits when the menu item is focused.\n         */\n        this._focused = new Subject();\n        /**\n         * Whether the menu item is highlighted.\n         */\n        this._highlighted = false;\n        /**\n         * Whether the menu item acts as a trigger for a sub-menu.\n         */\n        this._triggersSubmenu = false;\n        if (_focusMonitor) {\n            // Start monitoring the element so it gets the appropriate focused classes. We want\n            // to show the focus style for menu items only when the focus was not caused by a\n            // mouse or touch interaction.\n            _focusMonitor.monitor(this._elementRef, false);\n        }\n        if (_parentMenu && _parentMenu.addItem) {\n            _parentMenu.addItem(this);\n        }\n        this._document = document;\n    }\n    /**\n     * Focuses the menu item.\n     * @param {?=} origin\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(origin = 'program', options) {\n        if (this._focusMonitor) {\n            this._focusMonitor.focusVia(this._getHostElement(), origin, options);\n        }\n        else {\n            this._getHostElement().focus(options);\n        }\n        this._focused.next(this);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._focusMonitor) {\n            this._focusMonitor.stopMonitoring(this._elementRef);\n        }\n        if (this._parentMenu && this._parentMenu.removeItem) {\n            this._parentMenu.removeItem(this);\n        }\n        this._hovered.complete();\n        this._focused.complete();\n    }\n    /**\n     * Used to set the `tabindex`.\n     * @return {?}\n     */\n    _getTabIndex() {\n        return this.disabled ? '-1' : '0';\n    }\n    /**\n     * Returns the host DOM element.\n     * @return {?}\n     */\n    _getHostElement() {\n        return this._elementRef.nativeElement;\n    }\n    /**\n     * Prevents the default element actions if it is disabled.\n     * @param {?} event\n     * @return {?}\n     */\n    // We have to use a `HostListener` here in order to support both Ivy and ViewEngine.\n    // In Ivy the `host` bindings will be merged when this class is extended, whereas in\n    // ViewEngine they're overwritten.\n    // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default.\n    // tslint:disable-next-line:no-host-decorator-in-concrete\n    _checkDisabled(event) {\n        if (this.disabled) {\n            event.preventDefault();\n            event.stopPropagation();\n        }\n    }\n    /**\n     * Emits to the hover stream.\n     * @return {?}\n     */\n    // We have to use a `HostListener` here in order to support both Ivy and ViewEngine.\n    // In Ivy the `host` bindings will be merged when this class is extended, whereas in\n    // ViewEngine they're overwritten.\n    // TODO(crisbeto): we move this back into `host` once Ivy is turned on by default.\n    // tslint:disable-next-line:no-host-decorator-in-concrete\n    _handleMouseEnter() {\n        this._hovered.next(this);\n    }\n    /**\n     * Gets the label to be used when determining whether the option should be focused.\n     * @return {?}\n     */\n    getLabel() {\n        /** @type {?} */\n        const element = this._elementRef.nativeElement;\n        /** @type {?} */\n        const textNodeType = this._document ? this._document.TEXT_NODE : 3;\n        /** @type {?} */\n        let output = '';\n        if (element.childNodes) {\n            /** @type {?} */\n            const length = element.childNodes.length;\n            // Go through all the top-level text nodes and extract their text.\n            // We skip anything that's not a text node to prevent the text from\n            // being thrown off by something like an icon.\n            for (let i = 0; i < length; i++) {\n                if (element.childNodes[i].nodeType === textNodeType) {\n                    output += element.childNodes[i].textContent;\n                }\n            }\n        }\n        return output.trim();\n    }\n}\nMatMenuItem.ɵfac = function MatMenuItem_Factory(t) { return new (t || MatMenuItem)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(DOCUMENT), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(MAT_MENU_PANEL, 8)); };\nMatMenuItem.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatMenuItem, selectors: [[\"\", \"mat-menu-item\", \"\"]], hostAttrs: [1, \"mat-focus-indicator\"], hostVars: 10, hostBindings: function MatMenuItem_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"click\", function MatMenuItem_click_HostBindingHandler($event) { return ctx._checkDisabled($event); })(\"mouseenter\", function MatMenuItem_mouseenter_HostBindingHandler() { return ctx._handleMouseEnter(); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"role\", ctx.role)(\"tabindex\", ctx._getTabIndex())(\"aria-disabled\", ctx.disabled.toString())(\"disabled\", ctx.disabled || null);\n        ɵngcc0.ɵɵclassProp(\"mat-menu-item\", true)(\"mat-menu-item-highlighted\", ctx._highlighted)(\"mat-menu-item-submenu-trigger\", ctx._triggersSubmenu);\n    } }, inputs: { disabled: \"disabled\", disableRipple: \"disableRipple\", role: \"role\" }, exportAs: [\"matMenuItem\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], attrs: _c0, ngContentSelectors: _c1, decls: 2, vars: 2, consts: [[\"matRipple\", \"\", 1, \"mat-menu-ripple\", 3, \"matRippleDisabled\", \"matRippleTrigger\"]], template: function MatMenuItem_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵprojection(0);\n        ɵngcc0.ɵɵelement(1, \"div\", 0);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"matRippleDisabled\", ctx.disableRipple || ctx.disabled)(\"matRippleTrigger\", ctx._getHostElement());\n    } }, directives: [ɵngcc2.MatRipple], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatMenuItem.ctorParameters = () => [\n    { type: ElementRef },\n    { type: undefined, decorators: [{ type: Inject, args: [DOCUMENT,] }] },\n    { type: FocusMonitor },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_PANEL,] }, { type: Optional }] }\n];\nMatMenuItem.propDecorators = {\n    role: [{ type: Input }],\n    _checkDisabled: [{ type: HostListener, args: ['click', ['$event'],] }],\n    _handleMouseEnter: [{ type: HostListener, args: ['mouseenter',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatMenuItem, [{\n        type: Component,\n        args: [{\n                selector: '[mat-menu-item]',\n                exportAs: 'matMenuItem',\n                inputs: ['disabled', 'disableRipple'],\n                host: {\n                    '[attr.role]': 'role',\n                    '[class.mat-menu-item]': 'true',\n                    '[class.mat-menu-item-highlighted]': '_highlighted',\n                    '[class.mat-menu-item-submenu-trigger]': '_triggersSubmenu',\n                    '[attr.tabindex]': '_getTabIndex()',\n                    '[attr.aria-disabled]': 'disabled.toString()',\n                    '[attr.disabled]': 'disabled || null',\n                    'class': 'mat-focus-indicator'\n                },\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                encapsulation: ViewEncapsulation.None,\n                template: \"<ng-content></ng-content>\\n<div class=\\\"mat-menu-ripple\\\" matRipple\\n     [matRippleDisabled]=\\\"disableRipple || disabled\\\"\\n     [matRippleTrigger]=\\\"_getHostElement()\\\">\\n</div>\\n\"\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [DOCUMENT]\n            }] }, { type: ɵngcc1.FocusMonitor }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_MENU_PANEL]\n            }, {\n                type: Optional\n            }] }]; }, { role: [{\n            type: Input\n        }], _checkDisabled: [{\n            type: HostListener,\n            args: ['click', ['$event']]\n        }], _handleMouseEnter: [{\n            type: HostListener,\n            args: ['mouseenter']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatMenuItem.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatMenuItem.ngAcceptInputType_disableRipple;\n    /**\n     * ARIA role for the menu item.\n     * @type {?}\n     */\n    MatMenuItem.prototype.role;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuItem.prototype._document;\n    /**\n     * Stream that emits when the menu item is hovered.\n     * @type {?}\n     */\n    MatMenuItem.prototype._hovered;\n    /**\n     * Stream that emits when the menu item is focused.\n     * @type {?}\n     */\n    MatMenuItem.prototype._focused;\n    /**\n     * Whether the menu item is highlighted.\n     * @type {?}\n     */\n    MatMenuItem.prototype._highlighted;\n    /**\n     * Whether the menu item acts as a trigger for a sub-menu.\n     * @type {?}\n     */\n    MatMenuItem.prototype._triggersSubmenu;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuItem.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuItem.prototype._focusMonitor;\n    /** @type {?} */\n    MatMenuItem.prototype._parentMenu;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Default `mat-menu` options that can be overridden.\n * @record\n */\nfunction MatMenuDefaultOptions() { }\nif (false) {\n    /**\n     * The x-axis position of the menu.\n     * @type {?}\n     */\n    MatMenuDefaultOptions.prototype.xPosition;\n    /**\n     * The y-axis position of the menu.\n     * @type {?}\n     */\n    MatMenuDefaultOptions.prototype.yPosition;\n    /**\n     * Whether the menu should overlap the menu trigger.\n     * @type {?}\n     */\n    MatMenuDefaultOptions.prototype.overlapTrigger;\n    /**\n     * Class to be applied to the menu's backdrop.\n     * @type {?}\n     */\n    MatMenuDefaultOptions.prototype.backdropClass;\n    /**\n     * Whether the menu has a backdrop.\n     * @type {?|undefined}\n     */\n    MatMenuDefaultOptions.prototype.hasBackdrop;\n}\n/**\n * Injection token to be used to override the default options for `mat-menu`.\n * @type {?}\n */\nconst MAT_MENU_DEFAULT_OPTIONS = new InjectionToken('mat-menu-default-options', {\n    providedIn: 'root',\n    factory: MAT_MENU_DEFAULT_OPTIONS_FACTORY\n});\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MAT_MENU_DEFAULT_OPTIONS_FACTORY() {\n    return {\n        overlapTrigger: false,\n        xPosition: 'after',\n        yPosition: 'below',\n        backdropClass: 'cdk-overlay-transparent-backdrop',\n    };\n}\n/**\n * Start elevation for the menu panel.\n * \\@docs-private\n * @type {?}\n */\nconst MAT_MENU_BASE_ELEVATION = 4;\n/** @type {?} */\nlet menuPanelUid = 0;\n/**\n * Base class with all of the `MatMenu` functionality.\n */\n// tslint:disable-next-line:class-name\nclass _MatMenuBase {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _ngZone\n     * @param {?} _defaultOptions\n     */\n    constructor(_elementRef, _ngZone, _defaultOptions) {\n        this._elementRef = _elementRef;\n        this._ngZone = _ngZone;\n        this._defaultOptions = _defaultOptions;\n        this._xPosition = this._defaultOptions.xPosition;\n        this._yPosition = this._defaultOptions.yPosition;\n        /**\n         * Only the direct descendant menu items.\n         */\n        this._directDescendantItems = new QueryList();\n        /**\n         * Subscription to tab events on the menu panel\n         */\n        this._tabSubscription = Subscription.EMPTY;\n        /**\n         * Config object to be passed into the menu's ngClass\n         */\n        this._classList = {};\n        /**\n         * Current state of the panel animation.\n         */\n        this._panelAnimationState = 'void';\n        /**\n         * Emits whenever an animation on the menu completes.\n         */\n        this._animationDone = new Subject();\n        /**\n         * Class to be added to the backdrop element.\n         */\n        this.backdropClass = this._defaultOptions.backdropClass;\n        this._overlapTrigger = this._defaultOptions.overlapTrigger;\n        this._hasBackdrop = this._defaultOptions.hasBackdrop;\n        /**\n         * Event emitted when the menu is closed.\n         */\n        this.closed = new EventEmitter();\n        /**\n         * Event emitted when the menu is closed.\n         * @deprecated Switch to `closed` instead\n         * \\@breaking-change 8.0.0\n         */\n        this.close = this.closed;\n        this.panelId = `mat-menu-panel-${menuPanelUid++}`;\n    }\n    /**\n     * Position of the menu in the X axis.\n     * @return {?}\n     */\n    get xPosition() { return this._xPosition; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set xPosition(value) {\n        if (value !== 'before' && value !== 'after') {\n            throwMatMenuInvalidPositionX();\n        }\n        this._xPosition = value;\n        this.setPositionClasses();\n    }\n    /**\n     * Position of the menu in the Y axis.\n     * @return {?}\n     */\n    get yPosition() { return this._yPosition; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set yPosition(value) {\n        if (value !== 'above' && value !== 'below') {\n            throwMatMenuInvalidPositionY();\n        }\n        this._yPosition = value;\n        this.setPositionClasses();\n    }\n    /**\n     * Whether the menu should overlap its trigger.\n     * @return {?}\n     */\n    get overlapTrigger() { return this._overlapTrigger; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set overlapTrigger(value) {\n        this._overlapTrigger = coerceBooleanProperty(value);\n    }\n    /**\n     * Whether the menu has a backdrop.\n     * @return {?}\n     */\n    get hasBackdrop() { return this._hasBackdrop; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set hasBackdrop(value) {\n        this._hasBackdrop = coerceBooleanProperty(value);\n    }\n    /**\n     * This method takes classes set on the host mat-menu element and applies them on the\n     * menu template that displays in the overlay container.  Otherwise, it's difficult\n     * to style the containing menu from outside the component.\n     * @param {?} classes list of class names\n     * @return {?}\n     */\n    set panelClass(classes) {\n        /** @type {?} */\n        const previousPanelClass = this._previousPanelClass;\n        if (previousPanelClass && previousPanelClass.length) {\n            previousPanelClass.split(' ').forEach((/**\n             * @param {?} className\n             * @return {?}\n             */\n            (className) => {\n                this._classList[className] = false;\n            }));\n        }\n        this._previousPanelClass = classes;\n        if (classes && classes.length) {\n            classes.split(' ').forEach((/**\n             * @param {?} className\n             * @return {?}\n             */\n            (className) => {\n                this._classList[className] = true;\n            }));\n            this._elementRef.nativeElement.className = '';\n        }\n    }\n    /**\n     * This method takes classes set on the host mat-menu element and applies them on the\n     * menu template that displays in the overlay container.  Otherwise, it's difficult\n     * to style the containing menu from outside the component.\n     * @deprecated Use `panelClass` instead.\n     * \\@breaking-change 8.0.0\n     * @return {?}\n     */\n    get classList() { return this.panelClass; }\n    /**\n     * @param {?} classes\n     * @return {?}\n     */\n    set classList(classes) { this.panelClass = classes; }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this.setPositionClasses();\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this._updateDirectDescendants();\n        this._keyManager = new FocusKeyManager(this._directDescendantItems).withWrap().withTypeAhead();\n        this._tabSubscription = this._keyManager.tabOut.subscribe((/**\n         * @return {?}\n         */\n        () => this.closed.emit('tab')));\n        // If a user manually (programatically) focuses a menu item, we need to reflect that focus\n        // change back to the key manager. Note that we don't need to unsubscribe here because _focused\n        // is internal and we know that it gets completed on destroy.\n        this._directDescendantItems.changes.pipe(startWith(this._directDescendantItems), switchMap((/**\n         * @param {?} items\n         * @return {?}\n         */\n        items => merge(...items.map((/**\n         * @param {?} item\n         * @return {?}\n         */\n        (item) => item._focused)))))).subscribe((/**\n         * @param {?} focusedItem\n         * @return {?}\n         */\n        focusedItem => this._keyManager.updateActiveItem(focusedItem)));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._directDescendantItems.destroy();\n        this._tabSubscription.unsubscribe();\n        this.closed.complete();\n    }\n    /**\n     * Stream that emits whenever the hovered menu item changes.\n     * @return {?}\n     */\n    _hovered() {\n        // Coerce the `changes` property because Angular types it as `Observable<any>`\n        /** @type {?} */\n        const itemChanges = (/** @type {?} */ (this._directDescendantItems.changes));\n        return (/** @type {?} */ (itemChanges.pipe(startWith(this._directDescendantItems), switchMap((/**\n         * @param {?} items\n         * @return {?}\n         */\n        items => merge(...items.map((/**\n         * @param {?} item\n         * @return {?}\n         */\n        (item) => item._hovered))))))));\n    }\n    /*\n       * Registers a menu item with the menu.\n       * @docs-private\n       * @deprecated No longer being used. To be removed.\n       * @breaking-change 9.0.0\n       */\n    /**\n     * @param {?} _item\n     * @return {?}\n     */\n    addItem(_item) { }\n    /**\n     * Removes an item from the menu.\n     * \\@docs-private\n     * @deprecated No longer being used. To be removed.\n     * \\@breaking-change 9.0.0\n     * @param {?} _item\n     * @return {?}\n     */\n    removeItem(_item) { }\n    /**\n     * Handle a keyboard event from the menu, delegating to the appropriate action.\n     * @param {?} event\n     * @return {?}\n     */\n    _handleKeydown(event) {\n        /** @type {?} */\n        const keyCode = event.keyCode;\n        /** @type {?} */\n        const manager = this._keyManager;\n        switch (keyCode) {\n            case ESCAPE:\n                if (!hasModifierKey(event)) {\n                    event.preventDefault();\n                    this.closed.emit('keydown');\n                }\n                break;\n            case LEFT_ARROW:\n                if (this.parentMenu && this.direction === 'ltr') {\n                    this.closed.emit('keydown');\n                }\n                break;\n            case RIGHT_ARROW:\n                if (this.parentMenu && this.direction === 'rtl') {\n                    this.closed.emit('keydown');\n                }\n                break;\n            case HOME:\n            case END:\n                if (!hasModifierKey(event)) {\n                    keyCode === HOME ? manager.setFirstItemActive() : manager.setLastItemActive();\n                    event.preventDefault();\n                }\n                break;\n            default:\n                if (keyCode === UP_ARROW || keyCode === DOWN_ARROW) {\n                    manager.setFocusOrigin('keyboard');\n                }\n                manager.onKeydown(event);\n        }\n    }\n    /**\n     * Focus the first item in the menu.\n     * @param {?=} origin Action from which the focus originated. Used to set the correct styling.\n     * @return {?}\n     */\n    focusFirstItem(origin = 'program') {\n        // When the content is rendered lazily, it takes a bit before the items are inside the DOM.\n        if (this.lazyContent) {\n            this._ngZone.onStable.asObservable()\n                .pipe(take(1))\n                .subscribe((/**\n             * @return {?}\n             */\n            () => this._focusFirstItem(origin)));\n        }\n        else {\n            this._focusFirstItem(origin);\n        }\n    }\n    /**\n     * Actual implementation that focuses the first item. Needs to be separated\n     * out so we don't repeat the same logic in the public `focusFirstItem` method.\n     * @private\n     * @param {?} origin\n     * @return {?}\n     */\n    _focusFirstItem(origin) {\n        /** @type {?} */\n        const manager = this._keyManager;\n        manager.setFocusOrigin(origin).setFirstItemActive();\n        // If there's no active item at this point, it means that all the items are disabled.\n        // Move focus to the menu panel so keyboard events like Escape still work. Also this will\n        // give _some_ feedback to screen readers.\n        if (!manager.activeItem && this._directDescendantItems.length) {\n            /** @type {?} */\n            let element = this._directDescendantItems.first._getHostElement().parentElement;\n            // Because the `mat-menu` is at the DOM insertion point, not inside the overlay, we don't\n            // have a nice way of getting a hold of the menu panel. We can't use a `ViewChild` either\n            // because the panel is inside an `ng-template`. We work around it by starting from one of\n            // the items and walking up the DOM.\n            while (element) {\n                if (element.getAttribute('role') === 'menu') {\n                    element.focus();\n                    break;\n                }\n                else {\n                    element = element.parentElement;\n                }\n            }\n        }\n    }\n    /**\n     * Resets the active item in the menu. This is used when the menu is opened, allowing\n     * the user to start from the first option when pressing the down arrow.\n     * @return {?}\n     */\n    resetActiveItem() {\n        this._keyManager.setActiveItem(-1);\n    }\n    /**\n     * Sets the menu panel elevation.\n     * @param {?} depth Number of parent menus that come before the menu.\n     * @return {?}\n     */\n    setElevation(depth) {\n        // The elevation starts at the base and increases by one for each level.\n        // Capped at 24 because that's the maximum elevation defined in the Material design spec.\n        /** @type {?} */\n        const elevation = Math.min(MAT_MENU_BASE_ELEVATION + depth, 24);\n        /** @type {?} */\n        const newElevation = `mat-elevation-z${elevation}`;\n        /** @type {?} */\n        const customElevation = Object.keys(this._classList).find((/**\n         * @param {?} c\n         * @return {?}\n         */\n        c => c.startsWith('mat-elevation-z')));\n        if (!customElevation || customElevation === this._previousElevation) {\n            if (this._previousElevation) {\n                this._classList[this._previousElevation] = false;\n            }\n            this._classList[newElevation] = true;\n            this._previousElevation = newElevation;\n        }\n    }\n    /**\n     * Adds classes to the menu panel based on its position. Can be used by\n     * consumers to add specific styling based on the position.\n     * \\@docs-private\n     * @param {?=} posX Position of the menu along the x axis.\n     * @param {?=} posY Position of the menu along the y axis.\n     * @return {?}\n     */\n    setPositionClasses(posX = this.xPosition, posY = this.yPosition) {\n        /** @type {?} */\n        const classes = this._classList;\n        classes['mat-menu-before'] = posX === 'before';\n        classes['mat-menu-after'] = posX === 'after';\n        classes['mat-menu-above'] = posY === 'above';\n        classes['mat-menu-below'] = posY === 'below';\n    }\n    /**\n     * Starts the enter animation.\n     * @return {?}\n     */\n    _startAnimation() {\n        // @breaking-change 8.0.0 Combine with _resetAnimation.\n        this._panelAnimationState = 'enter';\n    }\n    /**\n     * Resets the panel animation to its initial state.\n     * @return {?}\n     */\n    _resetAnimation() {\n        // @breaking-change 8.0.0 Combine with _startAnimation.\n        this._panelAnimationState = 'void';\n    }\n    /**\n     * Callback that is invoked when the panel animation completes.\n     * @param {?} event\n     * @return {?}\n     */\n    _onAnimationDone(event) {\n        this._animationDone.next(event);\n        this._isAnimating = false;\n    }\n    /**\n     * @param {?} event\n     * @return {?}\n     */\n    _onAnimationStart(event) {\n        this._isAnimating = true;\n        // Scroll the content element to the top as soon as the animation starts. This is necessary,\n        // because we move focus to the first item while it's still being animated, which can throw\n        // the browser off when it determines the scroll position. Alternatively we can move focus\n        // when the animation is done, however moving focus asynchronously will interrupt screen\n        // readers which are in the process of reading out the menu already. We take the `element`\n        // from the `event` since we can't use a `ViewChild` to access the pane.\n        if (event.toState === 'enter' && this._keyManager.activeItemIndex === 0) {\n            event.element.scrollTop = 0;\n        }\n    }\n    /**\n     * Sets up a stream that will keep track of any newly-added menu items and will update the list\n     * of direct descendants. We collect the descendants this way, because `_allItems` can include\n     * items that are part of child menus, and using a custom way of registering items is unreliable\n     * when it comes to maintaining the item order.\n     * @private\n     * @return {?}\n     */\n    _updateDirectDescendants() {\n        this._allItems.changes\n            .pipe(startWith(this._allItems))\n            .subscribe((/**\n         * @param {?} items\n         * @return {?}\n         */\n        (items) => {\n            this._directDescendantItems.reset(items.filter((/**\n             * @param {?} item\n             * @return {?}\n             */\n            item => item._parentMenu === this)));\n            this._directDescendantItems.notifyOnChanges();\n        }));\n    }\n}\n_MatMenuBase.ɵfac = function _MatMenuBase_Factory(t) { return new (t || _MatMenuBase)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(MAT_MENU_DEFAULT_OPTIONS)); };\n_MatMenuBase.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: _MatMenuBase, contentQueries: function _MatMenuBase_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatMenuContent, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatMenuItem, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatMenuItem, false);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.lazyContent = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._allItems = _t);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.items = _t);\n    } }, viewQuery: function _MatMenuBase_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(TemplateRef, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.templateRef = _t.first);\n    } }, inputs: { backdropClass: \"backdropClass\", xPosition: \"xPosition\", yPosition: \"yPosition\", overlapTrigger: \"overlapTrigger\", hasBackdrop: \"hasBackdrop\", panelClass: [\"class\", \"panelClass\"], classList: \"classList\", ariaLabel: [\"aria-label\", \"ariaLabel\"], ariaLabelledby: [\"aria-labelledby\", \"ariaLabelledby\"], ariaDescribedby: [\"aria-describedby\", \"ariaDescribedby\"] }, outputs: { closed: \"closed\", close: \"close\" } });\n/** @nocollapse */\n_MatMenuBase.ctorParameters = () => [\n    { type: ElementRef },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_DEFAULT_OPTIONS,] }] }\n];\n_MatMenuBase.propDecorators = {\n    _allItems: [{ type: ContentChildren, args: [MatMenuItem, { descendants: true },] }],\n    backdropClass: [{ type: Input }],\n    ariaLabel: [{ type: Input, args: ['aria-label',] }],\n    ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }],\n    ariaDescribedby: [{ type: Input, args: ['aria-describedby',] }],\n    xPosition: [{ type: Input }],\n    yPosition: [{ type: Input }],\n    templateRef: [{ type: ViewChild, args: [TemplateRef,] }],\n    items: [{ type: ContentChildren, args: [MatMenuItem, { descendants: false },] }],\n    lazyContent: [{ type: ContentChild, args: [MatMenuContent,] }],\n    overlapTrigger: [{ type: Input }],\n    hasBackdrop: [{ type: Input }],\n    panelClass: [{ type: Input, args: ['class',] }],\n    classList: [{ type: Input }],\n    closed: [{ type: Output }],\n    close: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(_MatMenuBase, [{\n        type: Directive\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_MENU_DEFAULT_OPTIONS]\n            }] }]; }, { backdropClass: [{\n            type: Input\n        }], closed: [{\n            type: Output\n        }], close: [{\n            type: Output\n        }], xPosition: [{\n            type: Input\n        }], yPosition: [{\n            type: Input\n        }], overlapTrigger: [{\n            type: Input\n        }], hasBackdrop: [{\n            type: Input\n        }], panelClass: [{\n            type: Input,\n            args: ['class']\n        }], classList: [{\n            type: Input\n        }], _allItems: [{\n            type: ContentChildren,\n            args: [MatMenuItem, { descendants: true }]\n        }], ariaLabel: [{\n            type: Input,\n            args: ['aria-label']\n        }], ariaLabelledby: [{\n            type: Input,\n            args: ['aria-labelledby']\n        }], ariaDescribedby: [{\n            type: Input,\n            args: ['aria-describedby']\n        }], templateRef: [{\n            type: ViewChild,\n            args: [TemplateRef]\n        }], items: [{\n            type: ContentChildren,\n            args: [MatMenuItem, { descendants: false }]\n        }], lazyContent: [{\n            type: ContentChild,\n            args: [MatMenuContent]\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    _MatMenuBase.ngAcceptInputType_overlapTrigger;\n    /** @type {?} */\n    _MatMenuBase.ngAcceptInputType_hasBackdrop;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._keyManager;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._xPosition;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._yPosition;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._previousElevation;\n    /**\n     * All items inside the menu. Includes items nested inside another menu.\n     * @type {?}\n     */\n    _MatMenuBase.prototype._allItems;\n    /**\n     * Only the direct descendant menu items.\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._directDescendantItems;\n    /**\n     * Subscription to tab events on the menu panel\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._tabSubscription;\n    /**\n     * Config object to be passed into the menu's ngClass\n     * @type {?}\n     */\n    _MatMenuBase.prototype._classList;\n    /**\n     * Current state of the panel animation.\n     * @type {?}\n     */\n    _MatMenuBase.prototype._panelAnimationState;\n    /**\n     * Emits whenever an animation on the menu completes.\n     * @type {?}\n     */\n    _MatMenuBase.prototype._animationDone;\n    /**\n     * Whether the menu is animating.\n     * @type {?}\n     */\n    _MatMenuBase.prototype._isAnimating;\n    /**\n     * Parent menu of the current menu panel.\n     * @type {?}\n     */\n    _MatMenuBase.prototype.parentMenu;\n    /**\n     * Layout direction of the menu.\n     * @type {?}\n     */\n    _MatMenuBase.prototype.direction;\n    /**\n     * Class to be added to the backdrop element.\n     * @type {?}\n     */\n    _MatMenuBase.prototype.backdropClass;\n    /**\n     * aria-label for the menu panel.\n     * @type {?}\n     */\n    _MatMenuBase.prototype.ariaLabel;\n    /**\n     * aria-labelledby for the menu panel.\n     * @type {?}\n     */\n    _MatMenuBase.prototype.ariaLabelledby;\n    /**\n     * aria-describedby for the menu panel.\n     * @type {?}\n     */\n    _MatMenuBase.prototype.ariaDescribedby;\n    /**\n     * \\@docs-private\n     * @type {?}\n     */\n    _MatMenuBase.prototype.templateRef;\n    /**\n     * List of the items inside of a menu.\n     * @deprecated\n     * \\@breaking-change 8.0.0\n     * @type {?}\n     */\n    _MatMenuBase.prototype.items;\n    /**\n     * Menu content that will be rendered lazily.\n     * \\@docs-private\n     * @type {?}\n     */\n    _MatMenuBase.prototype.lazyContent;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._overlapTrigger;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._hasBackdrop;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._previousPanelClass;\n    /**\n     * Event emitted when the menu is closed.\n     * @type {?}\n     */\n    _MatMenuBase.prototype.closed;\n    /**\n     * Event emitted when the menu is closed.\n     * @deprecated Switch to `closed` instead\n     * \\@breaking-change 8.0.0\n     * @type {?}\n     */\n    _MatMenuBase.prototype.close;\n    /** @type {?} */\n    _MatMenuBase.prototype.panelId;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    _MatMenuBase.prototype._defaultOptions;\n}\n/**\n * \\@docs-private We show the \"_MatMenu\" class as \"MatMenu\" in the docs.\n */\nclass MatMenu extends _MatMenuBase {\n}\nMatMenu.ɵfac = function MatMenu_Factory(t) { return ɵMatMenu_BaseFactory(t || MatMenu); };\nMatMenu.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatMenu, features: [ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵMatMenu_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(MatMenu);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatMenu, [{\n        type: Directive\n    }], null, null); })();\n// Note on the weird inheritance setup: we need three classes, because the MDC-based menu has to\n// extend `MatMenu`, however keeping a reference to it will cause the inlined template and styles\n// to be retained as well. The MDC menu also has to provide itself as a `MatMenu` in order for\n// queries and DI to work correctly, while still not referencing the actual menu class.\n// Class responsibility is split up as follows:\n// * _MatMenuBase - provides all the functionality without any of the Angular metadata.\n// * MatMenu - keeps the same name symbol name as the current menu and\n// is used as a provider for DI and query purposes.\n// * _MatMenu - the actual menu component implementation with the Angular metadata that should\n// be tree shaken away for MDC.\n/**\n * \\@docs-public MatMenu\n */\n// tslint:disable-next-line:class-name\nclass _MatMenu extends MatMenu {\n    /**\n     * @param {?} elementRef\n     * @param {?} ngZone\n     * @param {?} defaultOptions\n     */\n    constructor(elementRef, ngZone, defaultOptions) {\n        super(elementRef, ngZone, defaultOptions);\n    }\n}\n_MatMenu.ɵfac = function _MatMenu_Factory(t) { return new (t || _MatMenu)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(MAT_MENU_DEFAULT_OPTIONS)); };\n_MatMenu.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: _MatMenu, selectors: [[\"mat-menu\"]], exportAs: [\"matMenu\"], features: [ɵngcc0.ɵɵProvidersFeature([\n            { provide: MAT_MENU_PANEL, useExisting: MatMenu },\n            { provide: MatMenu, useExisting: _MatMenu }\n        ]), ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c1, decls: 1, vars: 0, consts: [[\"tabindex\", \"-1\", \"role\", \"menu\", 1, \"mat-menu-panel\", 3, \"id\", \"ngClass\", \"keydown\", \"click\"], [1, \"mat-menu-content\"]], template: function _MatMenu_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵtemplate(0, _MatMenu_ng_template_0_Template, 3, 6, \"ng-template\");\n    } }, directives: [ɵngcc3.NgClass], styles: [\".mat-menu-panel{min-width:112px;max-width:280px;overflow:auto;-webkit-overflow-scrolling:touch;max-height:calc(100vh - 48px);border-radius:4px;outline:0;min-height:64px}.mat-menu-panel.ng-animating{pointer-events:none}.cdk-high-contrast-active .mat-menu-panel{outline:solid 1px}.mat-menu-content:not(:empty){padding-top:8px;padding-bottom:8px}.mat-menu-item{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;position:relative}.mat-menu-item::-moz-focus-inner{border:0}.mat-menu-item[disabled]{cursor:default}[dir=rtl] .mat-menu-item{text-align:right}.mat-menu-item .mat-icon{margin-right:16px;vertical-align:middle}.mat-menu-item .mat-icon svg{vertical-align:top}[dir=rtl] .mat-menu-item .mat-icon{margin-left:16px;margin-right:0}.mat-menu-item[disabled]{pointer-events:none}.cdk-high-contrast-active .mat-menu-item.cdk-program-focused,.cdk-high-contrast-active .mat-menu-item.cdk-keyboard-focused,.cdk-high-contrast-active .mat-menu-item-highlighted{outline:dotted 1px}.mat-menu-item-submenu-trigger{padding-right:32px}.mat-menu-item-submenu-trigger::after{width:0;height:0;border-style:solid;border-width:5px 0 5px 5px;border-color:transparent transparent transparent currentColor;content:\\\"\\\";display:inline-block;position:absolute;top:50%;right:16px;transform:translateY(-50%)}[dir=rtl] .mat-menu-item-submenu-trigger{padding-right:16px;padding-left:32px}[dir=rtl] .mat-menu-item-submenu-trigger::after{right:auto;left:16px;transform:rotateY(180deg) translateY(-50%)}button.mat-menu-item{width:100%}.mat-menu-item .mat-menu-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}\\n\"], encapsulation: 2, data: { animation: [\n            matMenuAnimations.transformMenu,\n            matMenuAnimations.fadeInItems\n        ] }, changeDetection: 0 });\n/** @nocollapse */\n_MatMenu.ctorParameters = () => [\n    { type: ElementRef },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_DEFAULT_OPTIONS,] }] }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(_MatMenu, [{\n        type: Component,\n        args: [{\n                selector: 'mat-menu',\n                template: \"<ng-template>\\n  <div\\n    class=\\\"mat-menu-panel\\\"\\n    [id]=\\\"panelId\\\"\\n    [ngClass]=\\\"_classList\\\"\\n    (keydown)=\\\"_handleKeydown($event)\\\"\\n    (click)=\\\"closed.emit('click')\\\"\\n    [@transformMenu]=\\\"_panelAnimationState\\\"\\n    (@transformMenu.start)=\\\"_onAnimationStart($event)\\\"\\n    (@transformMenu.done)=\\\"_onAnimationDone($event)\\\"\\n    tabindex=\\\"-1\\\"\\n    role=\\\"menu\\\"\\n    [attr.aria-label]=\\\"ariaLabel || null\\\"\\n    [attr.aria-labelledby]=\\\"ariaLabelledby || null\\\"\\n    [attr.aria-describedby]=\\\"ariaDescribedby || null\\\">\\n    <div class=\\\"mat-menu-content\\\">\\n      <ng-content></ng-content>\\n    </div>\\n  </div>\\n</ng-template>\\n\",\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                encapsulation: ViewEncapsulation.None,\n                exportAs: 'matMenu',\n                animations: [\n                    matMenuAnimations.transformMenu,\n                    matMenuAnimations.fadeInItems\n                ],\n                providers: [\n                    { provide: MAT_MENU_PANEL, useExisting: MatMenu },\n                    { provide: MatMenu, useExisting: _MatMenu }\n                ],\n                styles: [\".mat-menu-panel{min-width:112px;max-width:280px;overflow:auto;-webkit-overflow-scrolling:touch;max-height:calc(100vh - 48px);border-radius:4px;outline:0;min-height:64px}.mat-menu-panel.ng-animating{pointer-events:none}.cdk-high-contrast-active .mat-menu-panel{outline:solid 1px}.mat-menu-content:not(:empty){padding-top:8px;padding-bottom:8px}.mat-menu-item{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:pointer;outline:none;border:none;-webkit-tap-highlight-color:transparent;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;line-height:48px;height:48px;padding:0 16px;text-align:left;text-decoration:none;max-width:100%;position:relative}.mat-menu-item::-moz-focus-inner{border:0}.mat-menu-item[disabled]{cursor:default}[dir=rtl] .mat-menu-item{text-align:right}.mat-menu-item .mat-icon{margin-right:16px;vertical-align:middle}.mat-menu-item .mat-icon svg{vertical-align:top}[dir=rtl] .mat-menu-item .mat-icon{margin-left:16px;margin-right:0}.mat-menu-item[disabled]{pointer-events:none}.cdk-high-contrast-active .mat-menu-item.cdk-program-focused,.cdk-high-contrast-active .mat-menu-item.cdk-keyboard-focused,.cdk-high-contrast-active .mat-menu-item-highlighted{outline:dotted 1px}.mat-menu-item-submenu-trigger{padding-right:32px}.mat-menu-item-submenu-trigger::after{width:0;height:0;border-style:solid;border-width:5px 0 5px 5px;border-color:transparent transparent transparent currentColor;content:\\\"\\\";display:inline-block;position:absolute;top:50%;right:16px;transform:translateY(-50%)}[dir=rtl] .mat-menu-item-submenu-trigger{padding-right:16px;padding-left:32px}[dir=rtl] .mat-menu-item-submenu-trigger::after{right:auto;left:16px;transform:rotateY(180deg) translateY(-50%)}button.mat-menu-item{width:100%}.mat-menu-item .mat-menu-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_MENU_DEFAULT_OPTIONS]\n            }] }]; }, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-trigger.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Injection token that determines the scroll handling while the menu is open.\n * @type {?}\n */\nconst MAT_MENU_SCROLL_STRATEGY = new InjectionToken('mat-menu-scroll-strategy');\n/**\n * \\@docs-private\n * @param {?} overlay\n * @return {?}\n */\nfunction MAT_MENU_SCROLL_STRATEGY_FACTORY(overlay) {\n    return (/**\n     * @return {?}\n     */\n    () => overlay.scrollStrategies.reposition());\n}\n/**\n * \\@docs-private\n * @type {?}\n */\nconst MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER = {\n    provide: MAT_MENU_SCROLL_STRATEGY,\n    deps: [Overlay],\n    useFactory: MAT_MENU_SCROLL_STRATEGY_FACTORY,\n};\n/**\n * Default top padding of the menu panel.\n * @type {?}\n */\nconst MENU_PANEL_TOP_PADDING = 8;\n/**\n * Options for binding a passive event listener.\n * @type {?}\n */\nconst passiveEventListenerOptions = normalizePassiveListenerOptions({ passive: true });\n// TODO(andrewseguin): Remove the kebab versions in favor of camelCased attribute selectors\n/**\n * Directive applied to an element that should trigger a `mat-menu`.\n */\nclass MatMenuTrigger {\n    /**\n     * @param {?} _overlay\n     * @param {?} _element\n     * @param {?} _viewContainerRef\n     * @param {?} scrollStrategy\n     * @param {?} _parentMenu\n     * @param {?} _menuItemInstance\n     * @param {?} _dir\n     * @param {?=} _focusMonitor\n     */\n    constructor(_overlay, _element, _viewContainerRef, scrollStrategy, _parentMenu, _menuItemInstance, _dir, _focusMonitor) {\n        this._overlay = _overlay;\n        this._element = _element;\n        this._viewContainerRef = _viewContainerRef;\n        this._parentMenu = _parentMenu;\n        this._menuItemInstance = _menuItemInstance;\n        this._dir = _dir;\n        this._focusMonitor = _focusMonitor;\n        this._overlayRef = null;\n        this._menuOpen = false;\n        this._closingActionsSubscription = Subscription.EMPTY;\n        this._hoverSubscription = Subscription.EMPTY;\n        this._menuCloseSubscription = Subscription.EMPTY;\n        /**\n         * Handles touch start events on the trigger.\n         * Needs to be an arrow function so we can easily use addEventListener and removeEventListener.\n         */\n        this._handleTouchStart = (/**\n         * @return {?}\n         */\n        () => this._openedBy = 'touch');\n        // Tracking input type is necessary so it's possible to only auto-focus\n        // the first item of the list when the menu is opened via the keyboard\n        this._openedBy = null;\n        /**\n         * Whether focus should be restored when the menu is closed.\n         * Note that disabling this option can have accessibility implications\n         * and it's up to you to manage focus, if you decide to turn it off.\n         */\n        this.restoreFocus = true;\n        /**\n         * Event emitted when the associated menu is opened.\n         */\n        this.menuOpened = new EventEmitter();\n        /**\n         * Event emitted when the associated menu is opened.\n         * @deprecated Switch to `menuOpened` instead\n         * \\@breaking-change 8.0.0\n         */\n        // tslint:disable-next-line:no-output-on-prefix\n        this.onMenuOpen = this.menuOpened;\n        /**\n         * Event emitted when the associated menu is closed.\n         */\n        this.menuClosed = new EventEmitter();\n        /**\n         * Event emitted when the associated menu is closed.\n         * @deprecated Switch to `menuClosed` instead\n         * \\@breaking-change 8.0.0\n         */\n        // tslint:disable-next-line:no-output-on-prefix\n        this.onMenuClose = this.menuClosed;\n        _element.nativeElement.addEventListener('touchstart', this._handleTouchStart, passiveEventListenerOptions);\n        if (_menuItemInstance) {\n            _menuItemInstance._triggersSubmenu = this.triggersSubmenu();\n        }\n        this._scrollStrategy = scrollStrategy;\n    }\n    /**\n     * @deprecated\n     * \\@breaking-change 8.0.0\n     * @return {?}\n     */\n    get _deprecatedMatMenuTriggerFor() { return this.menu; }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set _deprecatedMatMenuTriggerFor(v) {\n        this.menu = v;\n    }\n    /**\n     * References the menu instance that the trigger is associated with.\n     * @return {?}\n     */\n    get menu() { return this._menu; }\n    /**\n     * @param {?} menu\n     * @return {?}\n     */\n    set menu(menu) {\n        if (menu === this._menu) {\n            return;\n        }\n        this._menu = menu;\n        this._menuCloseSubscription.unsubscribe();\n        if (menu) {\n            this._menuCloseSubscription = menu.close.asObservable().subscribe((/**\n             * @param {?} reason\n             * @return {?}\n             */\n            reason => {\n                this._destroyMenu();\n                // If a click closed the menu, we should close the entire chain of nested menus.\n                if ((reason === 'click' || reason === 'tab') && this._parentMenu) {\n                    this._parentMenu.closed.emit(reason);\n                }\n            }));\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this._checkMenu();\n        this._handleHover();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        if (this._overlayRef) {\n            this._overlayRef.dispose();\n            this._overlayRef = null;\n        }\n        this._element.nativeElement.removeEventListener('touchstart', this._handleTouchStart, passiveEventListenerOptions);\n        this._menuCloseSubscription.unsubscribe();\n        this._closingActionsSubscription.unsubscribe();\n        this._hoverSubscription.unsubscribe();\n    }\n    /**\n     * Whether the menu is open.\n     * @return {?}\n     */\n    get menuOpen() {\n        return this._menuOpen;\n    }\n    /**\n     * The text direction of the containing app.\n     * @return {?}\n     */\n    get dir() {\n        return this._dir && this._dir.value === 'rtl' ? 'rtl' : 'ltr';\n    }\n    /**\n     * Whether the menu triggers a sub-menu or a top-level one.\n     * @return {?}\n     */\n    triggersSubmenu() {\n        return !!(this._menuItemInstance && this._parentMenu);\n    }\n    /**\n     * Toggles the menu between the open and closed states.\n     * @return {?}\n     */\n    toggleMenu() {\n        return this._menuOpen ? this.closeMenu() : this.openMenu();\n    }\n    /**\n     * Opens the menu.\n     * @return {?}\n     */\n    openMenu() {\n        if (this._menuOpen) {\n            return;\n        }\n        this._checkMenu();\n        /** @type {?} */\n        const overlayRef = this._createOverlay();\n        /** @type {?} */\n        const overlayConfig = overlayRef.getConfig();\n        this._setPosition((/** @type {?} */ (overlayConfig.positionStrategy)));\n        overlayConfig.hasBackdrop = this.menu.hasBackdrop == null ? !this.triggersSubmenu() :\n            this.menu.hasBackdrop;\n        overlayRef.attach(this._getPortal());\n        if (this.menu.lazyContent) {\n            this.menu.lazyContent.attach(this.menuData);\n        }\n        this._closingActionsSubscription = this._menuClosingActions().subscribe((/**\n         * @return {?}\n         */\n        () => this.closeMenu()));\n        this._initMenu();\n        if (this.menu instanceof MatMenu) {\n            this.menu._startAnimation();\n        }\n    }\n    /**\n     * Closes the menu.\n     * @return {?}\n     */\n    closeMenu() {\n        this.menu.close.emit();\n    }\n    /**\n     * Focuses the menu trigger.\n     * @param {?=} origin Source of the menu trigger's focus.\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(origin = 'program', options) {\n        if (this._focusMonitor) {\n            this._focusMonitor.focusVia(this._element, origin, options);\n        }\n        else {\n            this._element.nativeElement.focus(options);\n        }\n    }\n    /**\n     * Closes the menu and does the necessary cleanup.\n     * @private\n     * @return {?}\n     */\n    _destroyMenu() {\n        if (!this._overlayRef || !this.menuOpen) {\n            return;\n        }\n        /** @type {?} */\n        const menu = this.menu;\n        this._closingActionsSubscription.unsubscribe();\n        this._overlayRef.detach();\n        this._restoreFocus();\n        if (menu instanceof MatMenu) {\n            menu._resetAnimation();\n            if (menu.lazyContent) {\n                // Wait for the exit animation to finish before detaching the content.\n                menu._animationDone\n                    .pipe(filter((/**\n                 * @param {?} event\n                 * @return {?}\n                 */\n                event => event.toState === 'void')), take(1), \n                // Interrupt if the content got re-attached.\n                takeUntil(menu.lazyContent._attached))\n                    .subscribe({\n                    next: (/**\n                     * @return {?}\n                     */\n                    () => (/** @type {?} */ (menu.lazyContent)).detach()),\n                    // No matter whether the content got re-attached, reset the menu.\n                    complete: (/**\n                     * @return {?}\n                     */\n                    () => this._setIsMenuOpen(false))\n                });\n            }\n            else {\n                this._setIsMenuOpen(false);\n            }\n        }\n        else {\n            this._setIsMenuOpen(false);\n            if (menu.lazyContent) {\n                menu.lazyContent.detach();\n            }\n        }\n    }\n    /**\n     * This method sets the menu state to open and focuses the first item if\n     * the menu was opened via the keyboard.\n     * @private\n     * @return {?}\n     */\n    _initMenu() {\n        this.menu.parentMenu = this.triggersSubmenu() ? this._parentMenu : undefined;\n        this.menu.direction = this.dir;\n        this._setMenuElevation();\n        this._setIsMenuOpen(true);\n        this.menu.focusFirstItem(this._openedBy || 'program');\n    }\n    /**\n     * Updates the menu elevation based on the amount of parent menus that it has.\n     * @private\n     * @return {?}\n     */\n    _setMenuElevation() {\n        if (this.menu.setElevation) {\n            /** @type {?} */\n            let depth = 0;\n            /** @type {?} */\n            let parentMenu = this.menu.parentMenu;\n            while (parentMenu) {\n                depth++;\n                parentMenu = parentMenu.parentMenu;\n            }\n            this.menu.setElevation(depth);\n        }\n    }\n    /**\n     * Restores focus to the element that was focused before the menu was open.\n     * @private\n     * @return {?}\n     */\n    _restoreFocus() {\n        // We should reset focus if the user is navigating using a keyboard or\n        // if we have a top-level trigger which might cause focus to be lost\n        // when clicking on the backdrop.\n        if (this.restoreFocus) {\n            if (!this._openedBy) {\n                // Note that the focus style will show up both for `program` and\n                // `keyboard` so we don't have to specify which one it is.\n                this.focus();\n            }\n            else if (!this.triggersSubmenu()) {\n                this.focus(this._openedBy);\n            }\n        }\n        this._openedBy = null;\n    }\n    // set state rather than toggle to support triggers sharing a menu\n    /**\n     * @private\n     * @param {?} isOpen\n     * @return {?}\n     */\n    _setIsMenuOpen(isOpen) {\n        this._menuOpen = isOpen;\n        this._menuOpen ? this.menuOpened.emit() : this.menuClosed.emit();\n        if (this.triggersSubmenu()) {\n            this._menuItemInstance._highlighted = isOpen;\n        }\n    }\n    /**\n     * This method checks that a valid instance of MatMenu has been passed into\n     * matMenuTriggerFor. If not, an exception is thrown.\n     * @private\n     * @return {?}\n     */\n    _checkMenu() {\n        if (!this.menu) {\n            throwMatMenuMissingError();\n        }\n    }\n    /**\n     * This method creates the overlay from the provided menu's template and saves its\n     * OverlayRef so that it can be attached to the DOM when openMenu is called.\n     * @private\n     * @return {?}\n     */\n    _createOverlay() {\n        if (!this._overlayRef) {\n            /** @type {?} */\n            const config = this._getOverlayConfig();\n            this._subscribeToPositions((/** @type {?} */ (config.positionStrategy)));\n            this._overlayRef = this._overlay.create(config);\n            // Consume the `keydownEvents` in order to prevent them from going to another overlay.\n            // Ideally we'd also have our keyboard event logic in here, however doing so will\n            // break anybody that may have implemented the `MatMenuPanel` themselves.\n            this._overlayRef.keydownEvents().subscribe();\n        }\n        return this._overlayRef;\n    }\n    /**\n     * This method builds the configuration object needed to create the overlay, the OverlayState.\n     * @private\n     * @return {?} OverlayConfig\n     */\n    _getOverlayConfig() {\n        return new OverlayConfig({\n            positionStrategy: this._overlay.position()\n                .flexibleConnectedTo(this._element)\n                .withLockedPosition()\n                .withTransformOriginOn('.mat-menu-panel, .mat-mdc-menu-panel'),\n            backdropClass: this.menu.backdropClass || 'cdk-overlay-transparent-backdrop',\n            scrollStrategy: this._scrollStrategy(),\n            direction: this._dir\n        });\n    }\n    /**\n     * Listens to changes in the position of the overlay and sets the correct classes\n     * on the menu based on the new position. This ensures the animation origin is always\n     * correct, even if a fallback position is used for the overlay.\n     * @private\n     * @param {?} position\n     * @return {?}\n     */\n    _subscribeToPositions(position) {\n        if (this.menu.setPositionClasses) {\n            position.positionChanges.subscribe((/**\n             * @param {?} change\n             * @return {?}\n             */\n            change => {\n                /** @type {?} */\n                const posX = change.connectionPair.overlayX === 'start' ? 'after' : 'before';\n                /** @type {?} */\n                const posY = change.connectionPair.overlayY === 'top' ? 'below' : 'above';\n                (/** @type {?} */ (this.menu.setPositionClasses))(posX, posY);\n            }));\n        }\n    }\n    /**\n     * Sets the appropriate positions on a position strategy\n     * so the overlay connects with the trigger correctly.\n     * @private\n     * @param {?} positionStrategy Strategy whose position to update.\n     * @return {?}\n     */\n    _setPosition(positionStrategy) {\n        let [originX, originFallbackX] = this.menu.xPosition === 'before' ? ['end', 'start'] : ['start', 'end'];\n        let [overlayY, overlayFallbackY] = this.menu.yPosition === 'above' ? ['bottom', 'top'] : ['top', 'bottom'];\n        let [originY, originFallbackY] = [overlayY, overlayFallbackY];\n        let [overlayX, overlayFallbackX] = [originX, originFallbackX];\n        /** @type {?} */\n        let offsetY = 0;\n        if (this.triggersSubmenu()) {\n            // When the menu is a sub-menu, it should always align itself\n            // to the edges of the trigger, instead of overlapping it.\n            overlayFallbackX = originX = this.menu.xPosition === 'before' ? 'start' : 'end';\n            originFallbackX = overlayX = originX === 'end' ? 'start' : 'end';\n            offsetY = overlayY === 'bottom' ? MENU_PANEL_TOP_PADDING : -MENU_PANEL_TOP_PADDING;\n        }\n        else if (!this.menu.overlapTrigger) {\n            originY = overlayY === 'top' ? 'bottom' : 'top';\n            originFallbackY = overlayFallbackY === 'top' ? 'bottom' : 'top';\n        }\n        positionStrategy.withPositions([\n            { originX, originY, overlayX, overlayY, offsetY },\n            { originX: originFallbackX, originY, overlayX: overlayFallbackX, overlayY, offsetY },\n            {\n                originX,\n                originY: originFallbackY,\n                overlayX,\n                overlayY: overlayFallbackY,\n                offsetY: -offsetY\n            },\n            {\n                originX: originFallbackX,\n                originY: originFallbackY,\n                overlayX: overlayFallbackX,\n                overlayY: overlayFallbackY,\n                offsetY: -offsetY\n            }\n        ]);\n    }\n    /**\n     * Returns a stream that emits whenever an action that should close the menu occurs.\n     * @private\n     * @return {?}\n     */\n    _menuClosingActions() {\n        /** @type {?} */\n        const backdrop = (/** @type {?} */ (this._overlayRef)).backdropClick();\n        /** @type {?} */\n        const detachments = (/** @type {?} */ (this._overlayRef)).detachments();\n        /** @type {?} */\n        const parentClose = this._parentMenu ? this._parentMenu.closed : of();\n        /** @type {?} */\n        const hover = this._parentMenu ? this._parentMenu._hovered().pipe(filter((/**\n         * @param {?} active\n         * @return {?}\n         */\n        active => active !== this._menuItemInstance)), filter((/**\n         * @return {?}\n         */\n        () => this._menuOpen))) : of();\n        return merge(backdrop, parentClose, hover, detachments);\n    }\n    /**\n     * Handles mouse presses on the trigger.\n     * @param {?} event\n     * @return {?}\n     */\n    _handleMousedown(event) {\n        if (!isFakeMousedownFromScreenReader(event)) {\n            // Since right or middle button clicks won't trigger the `click` event,\n            // we shouldn't consider the menu as opened by mouse in those cases.\n            this._openedBy = event.button === 0 ? 'mouse' : null;\n            // Since clicking on the trigger won't close the menu if it opens a sub-menu,\n            // we should prevent focus from moving onto it via click to avoid the\n            // highlight from lingering on the menu item.\n            if (this.triggersSubmenu()) {\n                event.preventDefault();\n            }\n        }\n    }\n    /**\n     * Handles key presses on the trigger.\n     * @param {?} event\n     * @return {?}\n     */\n    _handleKeydown(event) {\n        /** @type {?} */\n        const keyCode = event.keyCode;\n        if (this.triggersSubmenu() && ((keyCode === RIGHT_ARROW && this.dir === 'ltr') ||\n            (keyCode === LEFT_ARROW && this.dir === 'rtl'))) {\n            this.openMenu();\n        }\n    }\n    /**\n     * Handles click events on the trigger.\n     * @param {?} event\n     * @return {?}\n     */\n    _handleClick(event) {\n        if (this.triggersSubmenu()) {\n            // Stop event propagation to avoid closing the parent menu.\n            event.stopPropagation();\n            this.openMenu();\n        }\n        else {\n            this.toggleMenu();\n        }\n    }\n    /**\n     * Handles the cases where the user hovers over the trigger.\n     * @private\n     * @return {?}\n     */\n    _handleHover() {\n        // Subscribe to changes in the hovered item in order to toggle the panel.\n        if (!this.triggersSubmenu()) {\n            return;\n        }\n        this._hoverSubscription = this._parentMenu._hovered()\n            // Since we might have multiple competing triggers for the same menu (e.g. a sub-menu\n            // with different data and triggers), we have to delay it by a tick to ensure that\n            // it won't be closed immediately after it is opened.\n            .pipe(filter((/**\n         * @param {?} active\n         * @return {?}\n         */\n        active => active === this._menuItemInstance && !active.disabled)), delay(0, asapScheduler))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._openedBy = 'mouse';\n            // If the same menu is used between multiple triggers, it might still be animating\n            // while the new trigger tries to re-open it. Wait for the animation to finish\n            // before doing so. Also interrupt if the user moves to another item.\n            if (this.menu instanceof MatMenu && this.menu._isAnimating) {\n                // We need the `delay(0)` here in order to avoid\n                // 'changed after checked' errors in some cases. See #12194.\n                this.menu._animationDone\n                    .pipe(take(1), delay(0, asapScheduler), takeUntil(this._parentMenu._hovered()))\n                    .subscribe((/**\n                 * @return {?}\n                 */\n                () => this.openMenu()));\n            }\n            else {\n                this.openMenu();\n            }\n        }));\n    }\n    /**\n     * Gets the portal that should be attached to the overlay.\n     * @private\n     * @return {?}\n     */\n    _getPortal() {\n        // Note that we can avoid this check by keeping the portal on the menu panel.\n        // While it would be cleaner, we'd have to introduce another required method on\n        // `MatMenuPanel`, making it harder to consume.\n        if (!this._portal || this._portal.templateRef !== this.menu.templateRef) {\n            this._portal = new TemplatePortal(this.menu.templateRef, this._viewContainerRef);\n        }\n        return this._portal;\n    }\n}\nMatMenuTrigger.ɵfac = function MatMenuTrigger_Factory(t) { return new (t || MatMenuTrigger)(ɵngcc0.ɵɵdirectiveInject(ɵngcc4.Overlay), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(MAT_MENU_SCROLL_STRATEGY), ɵngcc0.ɵɵdirectiveInject(MatMenu, 8), ɵngcc0.ɵɵdirectiveInject(MatMenuItem, 10), ɵngcc0.ɵɵdirectiveInject(ɵngcc5.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor)); };\nMatMenuTrigger.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatMenuTrigger, selectors: [[\"\", \"mat-menu-trigger-for\", \"\"], [\"\", \"matMenuTriggerFor\", \"\"]], hostAttrs: [\"aria-haspopup\", \"true\", 1, \"mat-menu-trigger\"], hostVars: 2, hostBindings: function MatMenuTrigger_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"mousedown\", function MatMenuTrigger_mousedown_HostBindingHandler($event) { return ctx._handleMousedown($event); })(\"keydown\", function MatMenuTrigger_keydown_HostBindingHandler($event) { return ctx._handleKeydown($event); })(\"click\", function MatMenuTrigger_click_HostBindingHandler($event) { return ctx._handleClick($event); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"aria-expanded\", ctx.menuOpen || null)(\"aria-controls\", ctx.menuOpen ? ctx.menu.panelId : null);\n    } }, inputs: { restoreFocus: [\"matMenuTriggerRestoreFocus\", \"restoreFocus\"], _deprecatedMatMenuTriggerFor: [\"mat-menu-trigger-for\", \"_deprecatedMatMenuTriggerFor\"], menu: [\"matMenuTriggerFor\", \"menu\"], menuData: [\"matMenuTriggerData\", \"menuData\"] }, outputs: { menuOpened: \"menuOpened\", onMenuOpen: \"onMenuOpen\", menuClosed: \"menuClosed\", onMenuClose: \"onMenuClose\" }, exportAs: [\"matMenuTrigger\"] });\n/** @nocollapse */\nMatMenuTrigger.ctorParameters = () => [\n    { type: Overlay },\n    { type: ElementRef },\n    { type: ViewContainerRef },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_MENU_SCROLL_STRATEGY,] }] },\n    { type: MatMenu, decorators: [{ type: Optional }] },\n    { type: MatMenuItem, decorators: [{ type: Optional }, { type: Self }] },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: FocusMonitor }\n];\nMatMenuTrigger.propDecorators = {\n    _deprecatedMatMenuTriggerFor: [{ type: Input, args: ['mat-menu-trigger-for',] }],\n    menu: [{ type: Input, args: ['matMenuTriggerFor',] }],\n    menuData: [{ type: Input, args: ['matMenuTriggerData',] }],\n    restoreFocus: [{ type: Input, args: ['matMenuTriggerRestoreFocus',] }],\n    menuOpened: [{ type: Output }],\n    onMenuOpen: [{ type: Output }],\n    menuClosed: [{ type: Output }],\n    onMenuClose: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatMenuTrigger, [{\n        type: Directive,\n        args: [{\n                selector: `[mat-menu-trigger-for], [matMenuTriggerFor]`,\n                host: {\n                    'class': 'mat-menu-trigger',\n                    'aria-haspopup': 'true',\n                    '[attr.aria-expanded]': 'menuOpen || null',\n                    '[attr.aria-controls]': 'menuOpen ? menu.panelId : null',\n                    '(mousedown)': '_handleMousedown($event)',\n                    '(keydown)': '_handleKeydown($event)',\n                    '(click)': '_handleClick($event)'\n                },\n                exportAs: 'matMenuTrigger'\n            }]\n    }], function () { return [{ type: ɵngcc4.Overlay }, { type: ɵngcc0.ElementRef }, { type: ɵngcc0.ViewContainerRef }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_MENU_SCROLL_STRATEGY]\n            }] }, { type: MatMenu, decorators: [{\n                type: Optional\n            }] }, { type: MatMenuItem, decorators: [{\n                type: Optional\n            }, {\n                type: Self\n            }] }, { type: ɵngcc5.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc1.FocusMonitor }]; }, { restoreFocus: [{\n            type: Input,\n            args: ['matMenuTriggerRestoreFocus']\n        }], menuOpened: [{\n            type: Output\n        }], onMenuOpen: [{\n            type: Output\n        }], menuClosed: [{\n            type: Output\n        }], onMenuClose: [{\n            type: Output\n        }], _deprecatedMatMenuTriggerFor: [{\n            type: Input,\n            args: ['mat-menu-trigger-for']\n        }], menu: [{\n            type: Input,\n            args: ['matMenuTriggerFor']\n        }], menuData: [{\n            type: Input,\n            args: ['matMenuTriggerData']\n        }] }); })();\nif (false) {\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._portal;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._overlayRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._menuOpen;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._closingActionsSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._hoverSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._menuCloseSubscription;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._scrollStrategy;\n    /**\n     * Handles touch start events on the trigger.\n     * Needs to be an arrow function so we can easily use addEventListener and removeEventListener.\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._handleTouchStart;\n    /** @type {?} */\n    MatMenuTrigger.prototype._openedBy;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._menu;\n    /**\n     * Data to be passed along to any lazily-rendered content.\n     * @type {?}\n     */\n    MatMenuTrigger.prototype.menuData;\n    /**\n     * Whether focus should be restored when the menu is closed.\n     * Note that disabling this option can have accessibility implications\n     * and it's up to you to manage focus, if you decide to turn it off.\n     * @type {?}\n     */\n    MatMenuTrigger.prototype.restoreFocus;\n    /**\n     * Event emitted when the associated menu is opened.\n     * @type {?}\n     */\n    MatMenuTrigger.prototype.menuOpened;\n    /**\n     * Event emitted when the associated menu is opened.\n     * @deprecated Switch to `menuOpened` instead\n     * \\@breaking-change 8.0.0\n     * @type {?}\n     */\n    MatMenuTrigger.prototype.onMenuOpen;\n    /**\n     * Event emitted when the associated menu is closed.\n     * @type {?}\n     */\n    MatMenuTrigger.prototype.menuClosed;\n    /**\n     * Event emitted when the associated menu is closed.\n     * @deprecated Switch to `menuClosed` instead\n     * \\@breaking-change 8.0.0\n     * @type {?}\n     */\n    MatMenuTrigger.prototype.onMenuClose;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._overlay;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._element;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._viewContainerRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._parentMenu;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._menuItemInstance;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._dir;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatMenuTrigger.prototype._focusMonitor;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Used by both the current `MatMenuModule` and the MDC `MatMenuModule`\n * to declare the menu-related directives.\n */\n// tslint:disable-next-line:class-name\nclass _MatMenuDirectivesModule {\n}\n_MatMenuDirectivesModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: _MatMenuDirectivesModule });\n_MatMenuDirectivesModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function _MatMenuDirectivesModule_Factory(t) { return new (t || _MatMenuDirectivesModule)(); }, providers: [MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER], imports: [MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(_MatMenuDirectivesModule, { declarations: function () { return [MatMenuTrigger, MatMenuContent]; }, exports: function () { return [MatMenuTrigger, MatMenuContent, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(_MatMenuDirectivesModule, [{\n        type: NgModule,\n        args: [{\n                exports: [MatMenuTrigger, MatMenuContent, MatCommonModule],\n                declarations: [\n                    MatMenuTrigger,\n                    MatMenuContent,\n                ],\n                providers: [MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER]\n            }]\n    }], null, null); })();\nclass MatMenuModule {\n}\nMatMenuModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatMenuModule });\nMatMenuModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatMenuModule_Factory(t) { return new (t || MatMenuModule)(); }, providers: [MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER], imports: [[\n            CommonModule,\n            MatCommonModule,\n            MatRippleModule,\n            OverlayModule,\n            _MatMenuDirectivesModule,\n        ], CdkScrollableModule, MatCommonModule, _MatMenuDirectivesModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatMenuModule, { declarations: function () { return [_MatMenu, MatMenuItem]; }, imports: function () { return [CommonModule,\n        MatCommonModule,\n        MatRippleModule,\n        OverlayModule, _MatMenuDirectivesModule]; }, exports: function () { return [CdkScrollableModule, MatCommonModule, _MatMenu, MatMenuItem, _MatMenuDirectivesModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatMenuModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    CommonModule,\n                    MatCommonModule,\n                    MatRippleModule,\n                    OverlayModule,\n                    _MatMenuDirectivesModule,\n                ],\n                exports: [CdkScrollableModule, MatCommonModule, _MatMenu, MatMenuItem, _MatMenuDirectivesModule],\n                declarations: [_MatMenu, MatMenuItem],\n                providers: [MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/menu-positions.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/menu/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_MENU_DEFAULT_OPTIONS, MAT_MENU_PANEL, MAT_MENU_SCROLL_STRATEGY, MatMenu, MatMenuContent, MatMenuItem, MatMenuModule, MatMenuTrigger, _MatMenu, _MatMenuBase, _MatMenuDirectivesModule, fadeInItems, matMenuAnimations, transformMenu, MAT_MENU_DEFAULT_OPTIONS_FACTORY as ɵangular_material_src_material_menu_menu_a, MAT_MENU_SCROLL_STRATEGY_FACTORY as ɵangular_material_src_material_menu_menu_b, MAT_MENU_SCROLL_STRATEGY_FACTORY_PROVIDER as ɵangular_material_src_material_menu_menu_c };\n\n//# sourceMappingURL=menu.js.map","import {ChangeDetectionStrategy, Component} from '@angular/core';\nimport {Select} from '@ngxs/store';\nimport {HistoryState} from '../../../state/history/history.state';\nimport {Observable} from 'rxjs';\nimport {HistoryToolService} from '../../../../image-editor/history/history-tool.service';\nimport {Settings} from '@common/core/config/settings.service';\n\n@Component({\n    selector: 'toolbar-undo-widget',\n    templateUrl: './toolbar-undo-widget.component.html',\n    styleUrls: ['./toolbar-undo-widget.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class ToolbarUndoWidgetComponent {\n    @Select(HistoryState.canUndo) canUndo$: Observable<boolean>;\n    @Select(HistoryState.canRedo) canRedo$: Observable<boolean>;\n\n    constructor(\n        public history: HistoryToolService,\n        public config: Settings\n    ) {}\n}\n","import {ChangeDetectionStrategy, Component} from '@angular/core';\nimport {CanvasZoomService} from '../../../../image-editor/canvas/canvas-zoom.service';\nimport {Settings} from '@common/core/config/settings.service';\nimport {Select} from '@ngxs/store';\nimport {EditorState} from '../../../../image-editor/state/editor-state';\nimport {Observable} from 'rxjs';\n\n@Component({\n    selector: 'toolbar-zoom-widget',\n    templateUrl: './toolbar-zoom-widget.component.html',\n    styleUrls: ['./toolbar-zoom-widget.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class ToolbarZoomWidgetComponent {\n    @Select(EditorState.zoom) zoom$: Observable<number>;\n\n    constructor(\n        public zoom: CanvasZoomService,\n        public config: Settings,\n    ) {}\n}\n","<button mat-icon-button (click)=\"zoom.zoomOut()\"\n        [disabled]=\"!config.get('pixie.tools.zoom.disableMinimumZoom') && !zoom.canZoomOut()\">\n    <mat-icon svgIcon=\"remove\"></mat-icon>\n</button>\n<div class=\"current\">\n    <div trans>Zoom</div>\n    <div class=\"value\">{{zoom$ | async}}%</div>\n</div>\n<button mat-icon-button (click)=\"zoom.zoomIn()\" [disabled]=\"!zoom.canZoomIn()\">\n    <mat-icon svgIcon=\"add\"></mat-icon>\n</button>\n","<button mat-icon-button [disabled]=\"!(canUndo$ | async)\" (click)=\"history.undo()\" [class.invisible]=\"config.get('pixie.ui.toolbar.hideHistoryButtons')\">\n   <mat-icon svgIcon=\"undo\"></mat-icon>\n</button>\n<button mat-icon-button [disabled]=\"!(canRedo$ | async)\" (click)=\"history.redo()\" [class.invisible]=\"config.get('pixie.ui.toolbar.hideHistoryButtons')\">\n   <mat-icon svgIcon=\"redo\"></mat-icon>\n</button>\n","<ng-container *ngIf=\"shouldRenderItem\">\n    <ng-container [ngSwitch]=\"item.type\">\n        <ng-container *ngSwitchCase=\"'button'\">\n            <button mat-button [class.mat-icon-button]=\"toolbarMode === 'compact' || item.icon && !item.text\"\n                    (click)=\"executeOpenButtonAction(item.action)\"\n                    *ngIf=\"!item.dropdownItems; else dropdownButton\">\n                <mat-icon [svgIcon]=\"item.icon\"></mat-icon>\n                <span class=\"name\" *ngIf=\"toolbarMode !== 'compact'\" trans>{{item.text}}</span>\n            </button>\n            <ng-template #dropdownButton>\n                <button mat-button [matMenuTriggerFor]=\"openMenu\"\n                        [class.mat-icon-button]=\"toolbarMode === 'compact' || item.icon && !item.text\">\n                    <mat-icon [svgIcon]=\"item.icon\"></mat-icon>\n                    <span class=\"name\" *ngIf=\"toolbarMode !== 'compact'\" trans>{{item.text}}</span>\n                </button>\n                <mat-menu #openMenu=\"matMenu\" [overlapTrigger]=\"false\">\n                    <button mat-menu-item *ngFor=\"let actionConfig of item.dropdownItems\"\n                            (click)=\"executeOpenButtonAction(actionConfig.action)\"\n                            trans>{{actionConfig.label}}</button>\n                </mat-menu>\n            </ng-template>\n        </ng-container>\n        <ng-container *ngSwitchCase=\"'zoomWidget'\">\n            <toolbar-zoom-widget></toolbar-zoom-widget>\n        </ng-container>\n        <toolbar-undo-widget *ngSwitchCase=\"'undoWidget'\"></toolbar-undo-widget>\n        <toolbar-panel-name-widget *ngSwitchCase=\"'panelNameWidget'\"></toolbar-panel-name-widget>\n        <img class=\"toolbar-image\" [src]=\"item.src\" alt=\"\" *ngSwitchCase=\"'image'\">\n    </ng-container>\n</ng-container>\n","import {\n    ChangeDetectionStrategy,\n    Component,\n    ElementRef,\n    Input,\n    OnChanges\n} from '@angular/core';\nimport {Settings} from '@common/core/config/settings.service';\nimport {ToolbarItem, ToolbarItemAction} from '../../../../image-editor/default-settings';\nimport {Store} from '@ngxs/store';\nimport {EditorMode} from '../../../../image-editor/enums/editor-mode.enum';\nimport {HistoryNames} from '../../../../image-editor/history/history-names.enum';\nimport {CloseEditor} from '../../../../image-editor/state/editor-state-actions';\nimport {HistoryToolService} from '../../../../image-editor/history/history-tool.service';\nimport {CanvasZoomService} from '../../../../image-editor/canvas/canvas-zoom.service';\nimport {FloatingPanelsService} from '../../floating-panels.service';\nimport {BreakpointsService} from '@common/core/ui/breakpoints.service';\nimport {ImportToolService} from '../../../../image-editor/tools/import/import-tool.service';\nimport {ExportToolService} from '../../../../image-editor/tools/export/export-tool.service';\nimport {CanvasService} from '../../../../image-editor/canvas/canvas.service';\n\n@Component({\n    selector: 'toolbar-item',\n    templateUrl: './toolbar-item.component.html',\n    styleUrls: ['./toolbar-item.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class ToolbarItemComponent implements OnChanges {\n    @Input() item: ToolbarItem;\n    @Input() toolbarMode: 'compact'|'regular';\n    @Input() editorMode: EditorMode;\n    public shouldRenderItem: boolean;\n    public isDropdownButton: boolean;\n\n    constructor(\n        public history: HistoryToolService,\n        public config: Settings,\n        public zoom: CanvasZoomService,\n        public panels: FloatingPanelsService,\n        public breakpoints: BreakpointsService,\n        private importTool: ImportToolService,\n        private exportTool: ExportToolService,\n        private canvas: CanvasService,\n        private store: Store,\n        private el: ElementRef<HTMLElement>,\n    ) {}\n\n    ngOnChanges() {\n        this.shouldRenderItem = this.shouldRender();\n        this.isDropdownButton = Array.isArray(this.item.action);\n        if (this.shouldRenderItem ) {\n            if (this.item.marginLeft) {\n                this.el.nativeElement.style.marginLeft = this.item.marginLeft;\n            }\n            if (this.item.marginRight) {\n                this.el.nativeElement.style.marginRight = this.item.marginRight;\n            }\n        }\n    }\n\n    public executeOpenButtonAction(action: ToolbarItemAction) {\n        if (typeof action === 'function') {\n            action();\n        } else if (typeof action === 'string') {\n            this[action]();\n        }\n    }\n\n    public exportImage() {\n        if (this.config.get('pixie.ui.showExportPanel')) {\n            this.panels.openExportPanel();\n        } else {\n            this.exportTool.export();\n        }\n    }\n\n    public openBackgroundImage() {\n        this.importTool.openUploadDialog({type: 'image', openAsBackground: true}).then(() => {\n            this.history.add(HistoryNames.BG_IMAGE);\n        });\n    }\n\n    public openOverlayImage() {\n        this.importTool.openUploadDialog().then(obj => {\n            if ( ! obj) return;\n            this.canvas.fabric().setActiveObject(obj);\n            this.history.add(HistoryNames.OVERLAY_IMAGE);\n        });\n    }\n\n    public openStateFile() {\n        return this.importTool.openUploadDialog({type: 'state'});\n    }\n\n    public closeEditor() {\n        this.store.dispatch(new CloseEditor());\n    }\n\n    public toggleObjects() {\n        this.panels.toggleObjects();\n    }\n\n    public toggleHistory() {\n        this.panels.toggleHistory();\n    }\n\n    private shouldRender(): boolean {\n        if (this.toolbarMode === 'compact' && (!this.item.showInCompactMode && !this.item.compactModeOnly)) {\n            return false;\n        }\n        if (this.item.compactModeOnly && this.toolbarMode !== 'compact') {\n            return false;\n        }\n        if (!this.item?.condition) {\n            return true;\n        }\n        const key = Object.keys(this.item.condition)[0],\n            value = this.item.condition[key];\n        return this.config.get(`pixie.${key}`) === value;\n    }\n}\n","<ng-container *ngIf=\"toolbarMode$ | async as toolbarMode\">\r\n   <ng-container *ngIf=\"activePanel$ | async as activePanel\">\r\n       <ng-container *ngIf=\"editorMode$ | async as editorMode\">\r\n           <ng-container *ngIf=\"toolbarMode === 'compact' && activePanel !== 'navigation'; else regularActions\">\r\n               <div class=\"left\">\r\n                   <button mat-icon-button (click)=\"cancelChanges()\">\r\n                       <mat-icon svgIcon=\"close\"></mat-icon>\r\n                   </button>\r\n               </div>\r\n               <div class=\"center\">\r\n                   <toolbar-panel-name-widget></toolbar-panel-name-widget>\r\n               </div>\r\n               <div class=\"right\">\r\n                   <button mat-icon-button (click)=\"applyChanges()\">\r\n                       <mat-icon svgIcon=\"check\"></mat-icon>\r\n                   </button>\r\n               </div>\r\n           </ng-container>\r\n\r\n           <ng-template #regularActions>\r\n               <div class=\"left\">\r\n                   <ng-container *ngFor=\"let leftItem of items.left\">\r\n                       <toolbar-item [item]=\"leftItem\" [toolbarMode]=\"toolbarMode\" [editorMode]=\"editorMode\"></toolbar-item>\r\n                   </ng-container>\r\n               </div>\r\n               <div class=\"center\">\r\n                   <ng-container *ngFor=\"let centerItem of items.center\">\r\n                       <toolbar-item [item]=\"centerItem\" [toolbarMode]=\"toolbarMode\" [editorMode]=\"editorMode\"></toolbar-item>\r\n                   </ng-container>\r\n               </div>\r\n               <div class=\"right\">\r\n                   <ng-container *ngFor=\"let rightItem of items.right\">\r\n                       <toolbar-item [item]=\"rightItem\" [toolbarMode]=\"toolbarMode\" [editorMode]=\"editorMode\"></toolbar-item>\r\n                   </ng-container>\r\n               </div>\r\n           </ng-template>\r\n       </ng-container>\r\n   </ng-container>\r\n</ng-container>\r\n","import {\n    ChangeDetectionStrategy,\n    ChangeDetectorRef,\n    Component,\n    OnInit\n} from '@angular/core';\nimport {Settings} from 'common/core/config/settings.service';\nimport {FloatingPanelsService} from '../floating-panels.service';\nimport {CanvasService} from '../../../image-editor/canvas/canvas.service';\nimport {BehaviorSubject, Observable} from 'rxjs';\nimport {BreakpointsService} from '@common/core/ui/breakpoints.service';\nimport {EditorState} from '../../../image-editor/state/editor-state';\nimport {\n    ApplyChanges,\n    CancelChanges\n} from '../../../image-editor/state/editor-state-actions';\nimport {Select, Store} from '@ngxs/store';\nimport {DrawerName} from '../drawers/drawer-name.enum';\nimport {ToolbarItem} from '../../../image-editor/default-settings';\nimport {EditorMode} from '../../../image-editor/enums/editor-mode.enum';\n\n@Component({\n    selector: 'toolbar',\n    templateUrl: './toolbar.component.html',\n    styleUrls: ['./toolbar.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class ToolbarComponent implements OnInit {\n    @Select(EditorState.activePanel) activePanel$: Observable<DrawerName>;\n    @Select(EditorState.mode) editorMode$: Observable<EditorMode>;\n    public toolbarMode$ = new BehaviorSubject<'compact'|'regular'>('regular');\n\n    public items = {\n        left: <ToolbarItem[]>[],\n        center: <ToolbarItem[]>[],\n        right: <ToolbarItem[]>[],\n    };\n\n    constructor(\n        public config: Settings,\n        public breakpoints: BreakpointsService,\n        private canvas: CanvasService,\n        private floatingPanels: FloatingPanelsService,\n        private store: Store,\n        private cd: ChangeDetectorRef,\n    ) {}\n\n    ngOnInit() {\n        this.config.all$().subscribe(() => {\n            Object.keys(this.items).forEach(key => {\n                const configItems = this.config.get(`pixie.ui.toolbar.${key}Items`);\n                if (this.items[key] !== configItems) {\n                    this.items[key] = configItems;\n                    this.cd.markForCheck();\n                }\n            });\n        });\n\n        this.breakpoints.observe('(max-width: 920px)')\n            .subscribe(result => this.toolbarMode$.next(result.matches ? 'compact' : 'regular'));\n    }\n\n    public applyChanges() {\n        const panel = this.store.selectSnapshot(EditorState.activePanel);\n        this.store.dispatch(new ApplyChanges(panel));\n    }\n\n    public cancelChanges() {\n        const panel = this.store.selectSnapshot(EditorState.activePanel);\n        this.store.dispatch(new CancelChanges(panel));\n    }\n}\n","import { Overlay, OverlayModule } from '@angular/cdk/overlay';\nimport { AriaDescriber, FocusMonitor, A11yModule } from '@angular/cdk/a11y';\nimport { CommonModule } from '@angular/common';\nimport { InjectionToken, Directive, ElementRef, ViewContainerRef, NgZone, Inject, Optional, Input, Component, ViewEncapsulation, ChangeDetectionStrategy, ChangeDetectorRef, NgModule } from '@angular/core';\nimport { MatCommonModule } from '@angular/material/core';\nimport { ScrollDispatcher, CdkScrollableModule } from '@angular/cdk/scrolling';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { ESCAPE, hasModifierKey } from '@angular/cdk/keycodes';\nimport { Breakpoints, BreakpointObserver } from '@angular/cdk/layout';\nimport { normalizePassiveListenerOptions, Platform } from '@angular/cdk/platform';\nimport { ComponentPortal } from '@angular/cdk/portal';\nimport { Subject } from 'rxjs';\nimport { takeUntil, take } from 'rxjs/operators';\nimport { trigger, state, style, transition, animate, keyframes } from '@angular/animations';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/tooltip/tooltip-animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Animations used by MatTooltip.\n * \\@docs-private\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/overlay';\nimport * as ɵngcc2 from '@angular/cdk/scrolling';\nimport * as ɵngcc3 from '@angular/cdk/platform';\nimport * as ɵngcc4 from '@angular/cdk/a11y';\nimport * as ɵngcc5 from '@angular/cdk/bidi';\nimport * as ɵngcc6 from '@angular/cdk/layout';\nimport * as ɵngcc7 from '@angular/common';\nconst matTooltipAnimations = {\n    /**\n     * Animation that transitions a tooltip in and out.\n     */\n    tooltipState: trigger('state', [\n        state('initial, void, hidden', style({ opacity: 0, transform: 'scale(0)' })),\n        state('visible', style({ transform: 'scale(1)' })),\n        transition('* => visible', animate('200ms cubic-bezier(0, 0, 0.2, 1)', keyframes([\n            style({ opacity: 0, transform: 'scale(0)', offset: 0 }),\n            style({ opacity: 0.5, transform: 'scale(0.99)', offset: 0.5 }),\n            style({ opacity: 1, transform: 'scale(1)', offset: 1 })\n        ]))),\n        transition('* => hidden', animate('100ms cubic-bezier(0, 0, 0.2, 1)', style({ opacity: 0 }))),\n    ])\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/tooltip/tooltip.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Time in ms to throttle repositioning after scroll events.\n * @type {?}\n */\nconst SCROLL_THROTTLE_MS = 20;\n/**\n * CSS class that will be attached to the overlay panel.\n * @type {?}\n */\nconst TOOLTIP_PANEL_CLASS = 'mat-tooltip-panel';\n/**\n * Options used to bind passive event listeners.\n * @type {?}\n */\nconst passiveListenerOptions = normalizePassiveListenerOptions({ passive: true });\n/**\n * Time between the user putting the pointer on a tooltip\n * trigger and the long press event being fired.\n * @type {?}\n */\nconst LONGPRESS_DELAY = 500;\n/**\n * Creates an error to be thrown if the user supplied an invalid tooltip position.\n * \\@docs-private\n * @param {?} position\n * @return {?}\n */\nfunction getMatTooltipInvalidPositionError(position) {\n    return Error(`Tooltip position \"${position}\" is invalid.`);\n}\n/**\n * Injection token that determines the scroll handling while a tooltip is visible.\n * @type {?}\n */\nconst MAT_TOOLTIP_SCROLL_STRATEGY = new InjectionToken('mat-tooltip-scroll-strategy');\n/**\n * \\@docs-private\n * @param {?} overlay\n * @return {?}\n */\nfunction MAT_TOOLTIP_SCROLL_STRATEGY_FACTORY(overlay) {\n    return (/**\n     * @return {?}\n     */\n    () => overlay.scrollStrategies.reposition({ scrollThrottle: SCROLL_THROTTLE_MS }));\n}\n/**\n * \\@docs-private\n * @type {?}\n */\nconst MAT_TOOLTIP_SCROLL_STRATEGY_FACTORY_PROVIDER = {\n    provide: MAT_TOOLTIP_SCROLL_STRATEGY,\n    deps: [Overlay],\n    useFactory: MAT_TOOLTIP_SCROLL_STRATEGY_FACTORY,\n};\n/**\n * Default `matTooltip` options that can be overridden.\n * @record\n */\nfunction MatTooltipDefaultOptions() { }\nif (false) {\n    /** @type {?} */\n    MatTooltipDefaultOptions.prototype.showDelay;\n    /** @type {?} */\n    MatTooltipDefaultOptions.prototype.hideDelay;\n    /** @type {?} */\n    MatTooltipDefaultOptions.prototype.touchendHideDelay;\n    /** @type {?|undefined} */\n    MatTooltipDefaultOptions.prototype.touchGestures;\n    /** @type {?|undefined} */\n    MatTooltipDefaultOptions.prototype.position;\n}\n/**\n * Injection token to be used to override the default options for `matTooltip`.\n * @type {?}\n */\nconst MAT_TOOLTIP_DEFAULT_OPTIONS = new InjectionToken('mat-tooltip-default-options', {\n    providedIn: 'root',\n    factory: MAT_TOOLTIP_DEFAULT_OPTIONS_FACTORY\n});\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MAT_TOOLTIP_DEFAULT_OPTIONS_FACTORY() {\n    return {\n        showDelay: 0,\n        hideDelay: 0,\n        touchendHideDelay: 1500,\n    };\n}\n/**\n * Directive that attaches a material design tooltip to the host element. Animates the showing and\n * hiding of a tooltip provided position (defaults to below the element).\n *\n * https://material.io/design/components/tooltips.html\n */\nclass MatTooltip {\n    /**\n     * @param {?} _overlay\n     * @param {?} _elementRef\n     * @param {?} _scrollDispatcher\n     * @param {?} _viewContainerRef\n     * @param {?} _ngZone\n     * @param {?} _platform\n     * @param {?} _ariaDescriber\n     * @param {?} _focusMonitor\n     * @param {?} scrollStrategy\n     * @param {?} _dir\n     * @param {?} _defaultOptions\n     * @param {?=} _hammerLoader\n     */\n    constructor(_overlay, _elementRef, _scrollDispatcher, _viewContainerRef, _ngZone, _platform, _ariaDescriber, _focusMonitor, scrollStrategy, _dir, _defaultOptions, \n    /**\n     * @deprecated _hammerLoader parameter to be removed.\n     * @breaking-change 9.0.0\n     */\n    // Note that we need to give Angular something to inject here so it doesn't throw.\n    _hammerLoader) {\n        this._overlay = _overlay;\n        this._elementRef = _elementRef;\n        this._scrollDispatcher = _scrollDispatcher;\n        this._viewContainerRef = _viewContainerRef;\n        this._ngZone = _ngZone;\n        this._platform = _platform;\n        this._ariaDescriber = _ariaDescriber;\n        this._focusMonitor = _focusMonitor;\n        this._dir = _dir;\n        this._defaultOptions = _defaultOptions;\n        this._position = 'below';\n        this._disabled = false;\n        /**\n         * The default delay in ms before showing the tooltip after show is called\n         */\n        this.showDelay = this._defaultOptions.showDelay;\n        /**\n         * The default delay in ms before hiding the tooltip after hide is called\n         */\n        this.hideDelay = this._defaultOptions.hideDelay;\n        /**\n         * How touch gestures should be handled by the tooltip. On touch devices the tooltip directive\n         * uses a long press gesture to show and hide, however it can conflict with the native browser\n         * gestures. To work around the conflict, Angular Material disables native gestures on the\n         * trigger, but that might not be desirable on particular elements (e.g. inputs and draggable\n         * elements). The different values for this option configure the touch event handling as follows:\n         * - `auto` - Enables touch gestures for all elements, but tries to avoid conflicts with native\n         *   browser gestures on particular elements. In particular, it allows text selection on inputs\n         *   and textareas, and preserves the native browser dragging on elements marked as `draggable`.\n         * - `on` - Enables touch gestures for all elements and disables native\n         *   browser gestures with no exceptions.\n         * - `off` - Disables touch gestures. Note that this will prevent the tooltip from\n         *   showing on touch devices.\n         */\n        this.touchGestures = 'auto';\n        this._message = '';\n        /**\n         * Manually-bound passive event listeners.\n         */\n        this._passiveListeners = new Map();\n        /**\n         * Emits when the component is destroyed.\n         */\n        this._destroyed = new Subject();\n        /**\n         * Handles the keydown events on the host element.\n         * Needs to be an arrow function so that we can use it in addEventListener.\n         */\n        this._handleKeydown = (/**\n         * @param {?} event\n         * @return {?}\n         */\n        (event) => {\n            if (this._isTooltipVisible() && event.keyCode === ESCAPE && !hasModifierKey(event)) {\n                event.preventDefault();\n                event.stopPropagation();\n                this._ngZone.run((/**\n                 * @return {?}\n                 */\n                () => this.hide(0)));\n            }\n        });\n        this._scrollStrategy = scrollStrategy;\n        if (_defaultOptions) {\n            if (_defaultOptions.position) {\n                this.position = _defaultOptions.position;\n            }\n            if (_defaultOptions.touchGestures) {\n                this.touchGestures = _defaultOptions.touchGestures;\n            }\n        }\n        _focusMonitor.monitor(_elementRef)\n            .pipe(takeUntil(this._destroyed))\n            .subscribe((/**\n         * @param {?} origin\n         * @return {?}\n         */\n        origin => {\n            // Note that the focus monitor runs outside the Angular zone.\n            if (!origin) {\n                _ngZone.run((/**\n                 * @return {?}\n                 */\n                () => this.hide(0)));\n            }\n            else if (origin === 'keyboard') {\n                _ngZone.run((/**\n                 * @return {?}\n                 */\n                () => this.show()));\n            }\n        }));\n        _ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            _elementRef.nativeElement.addEventListener('keydown', this._handleKeydown);\n        }));\n    }\n    /**\n     * Allows the user to define the position of the tooltip relative to the parent element\n     * @return {?}\n     */\n    get position() { return this._position; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set position(value) {\n        if (value !== this._position) {\n            this._position = value;\n            if (this._overlayRef) {\n                this._updatePosition();\n                if (this._tooltipInstance) {\n                    (/** @type {?} */ (this._tooltipInstance)).show(0);\n                }\n                this._overlayRef.updatePosition();\n            }\n        }\n    }\n    /**\n     * Disables the display of the tooltip.\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = coerceBooleanProperty(value);\n        // If tooltip is disabled, hide immediately.\n        if (this._disabled) {\n            this.hide(0);\n        }\n    }\n    /**\n     * The message to be displayed in the tooltip\n     * @return {?}\n     */\n    get message() { return this._message; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set message(value) {\n        this._ariaDescriber.removeDescription(this._elementRef.nativeElement, this._message);\n        // If the message is not a string (e.g. number), convert it to a string and trim it.\n        this._message = value != null ? `${value}`.trim() : '';\n        if (!this._message && this._isTooltipVisible()) {\n            this.hide(0);\n        }\n        else {\n            this._updateTooltipMessage();\n            this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                // The `AriaDescriber` has some functionality that avoids adding a description if it's the\n                // same as the `aria-label` of an element, however we can't know whether the tooltip trigger\n                // has a data-bound `aria-label` or when it'll be set for the first time. We can avoid the\n                // issue by deferring the description by a tick so Angular has time to set the `aria-label`.\n                Promise.resolve().then((/**\n                 * @return {?}\n                 */\n                () => {\n                    this._ariaDescriber.describe(this._elementRef.nativeElement, this.message);\n                }));\n            }));\n        }\n    }\n    /**\n     * Classes to be passed to the tooltip. Supports the same syntax as `ngClass`.\n     * @return {?}\n     */\n    get tooltipClass() { return this._tooltipClass; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set tooltipClass(value) {\n        this._tooltipClass = value;\n        if (this._tooltipInstance) {\n            this._setTooltipClass(this._tooltipClass);\n        }\n    }\n    /**\n     * Setup styling-specific things\n     * @return {?}\n     */\n    ngOnInit() {\n        // This needs to happen in `ngOnInit` so the initial values for all inputs have been set.\n        this._setupPointerEvents();\n    }\n    /**\n     * Dispose the tooltip when destroyed.\n     * @return {?}\n     */\n    ngOnDestroy() {\n        /** @type {?} */\n        const nativeElement = this._elementRef.nativeElement;\n        clearTimeout(this._touchstartTimeout);\n        if (this._overlayRef) {\n            this._overlayRef.dispose();\n            this._tooltipInstance = null;\n        }\n        // Clean up the event listeners set in the constructor\n        nativeElement.removeEventListener('keydown', this._handleKeydown);\n        this._passiveListeners.forEach((/**\n         * @param {?} listener\n         * @param {?} event\n         * @return {?}\n         */\n        (listener, event) => {\n            nativeElement.removeEventListener(event, listener, passiveListenerOptions);\n        }));\n        this._passiveListeners.clear();\n        this._destroyed.next();\n        this._destroyed.complete();\n        this._ariaDescriber.removeDescription(nativeElement, this.message);\n        this._focusMonitor.stopMonitoring(nativeElement);\n    }\n    /**\n     * Shows the tooltip after the delay in ms, defaults to tooltip-delay-show or 0ms if no input\n     * @param {?=} delay\n     * @return {?}\n     */\n    show(delay = this.showDelay) {\n        if (this.disabled || !this.message || (this._isTooltipVisible() &&\n            !(/** @type {?} */ (this._tooltipInstance))._showTimeoutId && !(/** @type {?} */ (this._tooltipInstance))._hideTimeoutId)) {\n            return;\n        }\n        /** @type {?} */\n        const overlayRef = this._createOverlay();\n        this._detach();\n        this._portal = this._portal || new ComponentPortal(TooltipComponent, this._viewContainerRef);\n        this._tooltipInstance = overlayRef.attach(this._portal).instance;\n        this._tooltipInstance.afterHidden()\n            .pipe(takeUntil(this._destroyed))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => this._detach()));\n        this._setTooltipClass(this._tooltipClass);\n        this._updateTooltipMessage();\n        (/** @type {?} */ (this._tooltipInstance)).show(delay);\n    }\n    /**\n     * Hides the tooltip after the delay in ms, defaults to tooltip-delay-hide or 0ms if no input\n     * @param {?=} delay\n     * @return {?}\n     */\n    hide(delay = this.hideDelay) {\n        if (this._tooltipInstance) {\n            this._tooltipInstance.hide(delay);\n        }\n    }\n    /**\n     * Shows/hides the tooltip\n     * @return {?}\n     */\n    toggle() {\n        this._isTooltipVisible() ? this.hide() : this.show();\n    }\n    /**\n     * Returns true if the tooltip is currently visible to the user\n     * @return {?}\n     */\n    _isTooltipVisible() {\n        return !!this._tooltipInstance && this._tooltipInstance.isVisible();\n    }\n    /**\n     * Create the overlay config and position strategy\n     * @private\n     * @return {?}\n     */\n    _createOverlay() {\n        if (this._overlayRef) {\n            return this._overlayRef;\n        }\n        /** @type {?} */\n        const scrollableAncestors = this._scrollDispatcher.getAncestorScrollContainers(this._elementRef);\n        // Create connected position strategy that listens for scroll events to reposition.\n        /** @type {?} */\n        const strategy = this._overlay.position()\n            .flexibleConnectedTo(this._elementRef)\n            .withTransformOriginOn('.mat-tooltip')\n            .withFlexibleDimensions(false)\n            .withViewportMargin(8)\n            .withScrollableContainers(scrollableAncestors);\n        strategy.positionChanges.pipe(takeUntil(this._destroyed)).subscribe((/**\n         * @param {?} change\n         * @return {?}\n         */\n        change => {\n            if (this._tooltipInstance) {\n                if (change.scrollableViewProperties.isOverlayClipped && this._tooltipInstance.isVisible()) {\n                    // After position changes occur and the overlay is clipped by\n                    // a parent scrollable then close the tooltip.\n                    this._ngZone.run((/**\n                     * @return {?}\n                     */\n                    () => this.hide(0)));\n                }\n            }\n        }));\n        this._overlayRef = this._overlay.create({\n            direction: this._dir,\n            positionStrategy: strategy,\n            panelClass: TOOLTIP_PANEL_CLASS,\n            scrollStrategy: this._scrollStrategy()\n        });\n        this._updatePosition();\n        this._overlayRef.detachments()\n            .pipe(takeUntil(this._destroyed))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => this._detach()));\n        return this._overlayRef;\n    }\n    /**\n     * Detaches the currently-attached tooltip.\n     * @private\n     * @return {?}\n     */\n    _detach() {\n        if (this._overlayRef && this._overlayRef.hasAttached()) {\n            this._overlayRef.detach();\n        }\n        this._tooltipInstance = null;\n    }\n    /**\n     * Updates the position of the current tooltip.\n     * @private\n     * @return {?}\n     */\n    _updatePosition() {\n        /** @type {?} */\n        const position = (/** @type {?} */ ((/** @type {?} */ (this._overlayRef)).getConfig().positionStrategy));\n        /** @type {?} */\n        const origin = this._getOrigin();\n        /** @type {?} */\n        const overlay = this._getOverlayPosition();\n        position.withPositions([\n            Object.assign(Object.assign({}, origin.main), overlay.main),\n            Object.assign(Object.assign({}, origin.fallback), overlay.fallback)\n        ]);\n    }\n    /**\n     * Returns the origin position and a fallback position based on the user's position preference.\n     * The fallback position is the inverse of the origin (e.g. `'below' -> 'above'`).\n     * @return {?}\n     */\n    _getOrigin() {\n        /** @type {?} */\n        const isLtr = !this._dir || this._dir.value == 'ltr';\n        /** @type {?} */\n        const position = this.position;\n        /** @type {?} */\n        let originPosition;\n        if (position == 'above' || position == 'below') {\n            originPosition = { originX: 'center', originY: position == 'above' ? 'top' : 'bottom' };\n        }\n        else if (position == 'before' ||\n            (position == 'left' && isLtr) ||\n            (position == 'right' && !isLtr)) {\n            originPosition = { originX: 'start', originY: 'center' };\n        }\n        else if (position == 'after' ||\n            (position == 'right' && isLtr) ||\n            (position == 'left' && !isLtr)) {\n            originPosition = { originX: 'end', originY: 'center' };\n        }\n        else {\n            throw getMatTooltipInvalidPositionError(position);\n        }\n        const { x, y } = this._invertPosition(originPosition.originX, originPosition.originY);\n        return {\n            main: originPosition,\n            fallback: { originX: x, originY: y }\n        };\n    }\n    /**\n     * Returns the overlay position and a fallback position based on the user's preference\n     * @return {?}\n     */\n    _getOverlayPosition() {\n        /** @type {?} */\n        const isLtr = !this._dir || this._dir.value == 'ltr';\n        /** @type {?} */\n        const position = this.position;\n        /** @type {?} */\n        let overlayPosition;\n        if (position == 'above') {\n            overlayPosition = { overlayX: 'center', overlayY: 'bottom' };\n        }\n        else if (position == 'below') {\n            overlayPosition = { overlayX: 'center', overlayY: 'top' };\n        }\n        else if (position == 'before' ||\n            (position == 'left' && isLtr) ||\n            (position == 'right' && !isLtr)) {\n            overlayPosition = { overlayX: 'end', overlayY: 'center' };\n        }\n        else if (position == 'after' ||\n            (position == 'right' && isLtr) ||\n            (position == 'left' && !isLtr)) {\n            overlayPosition = { overlayX: 'start', overlayY: 'center' };\n        }\n        else {\n            throw getMatTooltipInvalidPositionError(position);\n        }\n        const { x, y } = this._invertPosition(overlayPosition.overlayX, overlayPosition.overlayY);\n        return {\n            main: overlayPosition,\n            fallback: { overlayX: x, overlayY: y }\n        };\n    }\n    /**\n     * Updates the tooltip message and repositions the overlay according to the new message length\n     * @private\n     * @return {?}\n     */\n    _updateTooltipMessage() {\n        // Must wait for the message to be painted to the tooltip so that the overlay can properly\n        // calculate the correct positioning based on the size of the text.\n        if (this._tooltipInstance) {\n            this._tooltipInstance.message = this.message;\n            this._tooltipInstance._markForCheck();\n            this._ngZone.onMicrotaskEmpty.asObservable().pipe(take(1), takeUntil(this._destroyed)).subscribe((/**\n             * @return {?}\n             */\n            () => {\n                if (this._tooltipInstance) {\n                    (/** @type {?} */ (this._overlayRef)).updatePosition();\n                }\n            }));\n        }\n    }\n    /**\n     * Updates the tooltip class\n     * @private\n     * @param {?} tooltipClass\n     * @return {?}\n     */\n    _setTooltipClass(tooltipClass) {\n        if (this._tooltipInstance) {\n            this._tooltipInstance.tooltipClass = tooltipClass;\n            this._tooltipInstance._markForCheck();\n        }\n    }\n    /**\n     * Inverts an overlay position.\n     * @private\n     * @param {?} x\n     * @param {?} y\n     * @return {?}\n     */\n    _invertPosition(x, y) {\n        if (this.position === 'above' || this.position === 'below') {\n            if (y === 'top') {\n                y = 'bottom';\n            }\n            else if (y === 'bottom') {\n                y = 'top';\n            }\n        }\n        else {\n            if (x === 'end') {\n                x = 'start';\n            }\n            else if (x === 'start') {\n                x = 'end';\n            }\n        }\n        return { x, y };\n    }\n    /**\n     * Binds the pointer events to the tooltip trigger.\n     * @private\n     * @return {?}\n     */\n    _setupPointerEvents() {\n        // The mouse events shouldn't be bound on mobile devices, because they can prevent the\n        // first tap from firing its click event or can cause the tooltip to open for clicks.\n        if (!this._platform.IOS && !this._platform.ANDROID) {\n            this._passiveListeners\n                .set('mouseenter', (/**\n             * @return {?}\n             */\n            () => this.show()))\n                .set('mouseleave', (/**\n             * @return {?}\n             */\n            () => this.hide()));\n        }\n        else if (this.touchGestures !== 'off') {\n            this._disableNativeGesturesIfNecessary();\n            /** @type {?} */\n            const touchendListener = (/**\n             * @return {?}\n             */\n            () => {\n                clearTimeout(this._touchstartTimeout);\n                this.hide(this._defaultOptions.touchendHideDelay);\n            });\n            this._passiveListeners\n                .set('touchend', touchendListener)\n                .set('touchcancel', touchendListener)\n                .set('touchstart', (/**\n             * @return {?}\n             */\n            () => {\n                // Note that it's important that we don't `preventDefault` here,\n                // because it can prevent click events from firing on the element.\n                clearTimeout(this._touchstartTimeout);\n                this._touchstartTimeout = setTimeout((/**\n                 * @return {?}\n                 */\n                () => this.show()), LONGPRESS_DELAY);\n            }));\n        }\n        this._passiveListeners.forEach((/**\n         * @param {?} listener\n         * @param {?} event\n         * @return {?}\n         */\n        (listener, event) => {\n            this._elementRef.nativeElement.addEventListener(event, listener, passiveListenerOptions);\n        }));\n    }\n    /**\n     * Disables the native browser gestures, based on how the tooltip has been configured.\n     * @private\n     * @return {?}\n     */\n    _disableNativeGesturesIfNecessary() {\n        /** @type {?} */\n        const element = this._elementRef.nativeElement;\n        /** @type {?} */\n        const style = element.style;\n        /** @type {?} */\n        const gestures = this.touchGestures;\n        if (gestures !== 'off') {\n            // If gestures are set to `auto`, we don't disable text selection on inputs and\n            // textareas, because it prevents the user from typing into them on iOS Safari.\n            if (gestures === 'on' || (element.nodeName !== 'INPUT' && element.nodeName !== 'TEXTAREA')) {\n                style.userSelect = style.msUserSelect = style.webkitUserSelect =\n                    ((/** @type {?} */ (style))).MozUserSelect = 'none';\n            }\n            // If we have `auto` gestures and the element uses native HTML dragging,\n            // we don't set `-webkit-user-drag` because it prevents the native behavior.\n            if (gestures === 'on' || !element.draggable) {\n                ((/** @type {?} */ (style))).webkitUserDrag = 'none';\n            }\n            style.touchAction = 'none';\n            style.webkitTapHighlightColor = 'transparent';\n        }\n    }\n}\nMatTooltip.ɵfac = function MatTooltip_Factory(t) { return new (t || MatTooltip)(ɵngcc0.ɵɵdirectiveInject(ɵngcc1.Overlay), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.ScrollDispatcher), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ɵngcc3.Platform), ɵngcc0.ɵɵdirectiveInject(ɵngcc4.AriaDescriber), ɵngcc0.ɵɵdirectiveInject(ɵngcc4.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(MAT_TOOLTIP_SCROLL_STRATEGY), ɵngcc0.ɵɵdirectiveInject(ɵngcc5.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(MAT_TOOLTIP_DEFAULT_OPTIONS, 8), ɵngcc0.ɵɵdirectiveInject(ElementRef)); };\nMatTooltip.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatTooltip, selectors: [[\"\", \"matTooltip\", \"\"]], inputs: { showDelay: [\"matTooltipShowDelay\", \"showDelay\"], hideDelay: [\"matTooltipHideDelay\", \"hideDelay\"], touchGestures: [\"matTooltipTouchGestures\", \"touchGestures\"], position: [\"matTooltipPosition\", \"position\"], disabled: [\"matTooltipDisabled\", \"disabled\"], message: [\"matTooltip\", \"message\"], tooltipClass: [\"matTooltipClass\", \"tooltipClass\"] }, exportAs: [\"matTooltip\"] });\n/** @nocollapse */\nMatTooltip.ctorParameters = () => [\n    { type: Overlay },\n    { type: ElementRef },\n    { type: ScrollDispatcher },\n    { type: ViewContainerRef },\n    { type: NgZone },\n    { type: Platform },\n    { type: AriaDescriber },\n    { type: FocusMonitor },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_TOOLTIP_SCROLL_STRATEGY,] }] },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_TOOLTIP_DEFAULT_OPTIONS,] }] },\n    { type: undefined, decorators: [{ type: Inject, args: [ElementRef,] }] }\n];\nMatTooltip.propDecorators = {\n    position: [{ type: Input, args: ['matTooltipPosition',] }],\n    disabled: [{ type: Input, args: ['matTooltipDisabled',] }],\n    showDelay: [{ type: Input, args: ['matTooltipShowDelay',] }],\n    hideDelay: [{ type: Input, args: ['matTooltipHideDelay',] }],\n    touchGestures: [{ type: Input, args: ['matTooltipTouchGestures',] }],\n    message: [{ type: Input, args: ['matTooltip',] }],\n    tooltipClass: [{ type: Input, args: ['matTooltipClass',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatTooltip, [{\n        type: Directive,\n        args: [{\n                selector: '[matTooltip]',\n                exportAs: 'matTooltip'\n            }]\n    }], function () { return [{ type: ɵngcc1.Overlay }, { type: ɵngcc0.ElementRef }, { type: ɵngcc2.ScrollDispatcher }, { type: ɵngcc0.ViewContainerRef }, { type: ɵngcc0.NgZone }, { type: ɵngcc3.Platform }, { type: ɵngcc4.AriaDescriber }, { type: ɵngcc4.FocusMonitor }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_TOOLTIP_SCROLL_STRATEGY]\n            }] }, { type: ɵngcc5.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_TOOLTIP_DEFAULT_OPTIONS]\n            }] }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [ElementRef]\n            }] }]; }, { showDelay: [{\n            type: Input,\n            args: ['matTooltipShowDelay']\n        }], hideDelay: [{\n            type: Input,\n            args: ['matTooltipHideDelay']\n        }], touchGestures: [{\n            type: Input,\n            args: ['matTooltipTouchGestures']\n        }], position: [{\n            type: Input,\n            args: ['matTooltipPosition']\n        }], disabled: [{\n            type: Input,\n            args: ['matTooltipDisabled']\n        }], message: [{\n            type: Input,\n            args: ['matTooltip']\n        }], tooltipClass: [{\n            type: Input,\n            args: ['matTooltipClass']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatTooltip.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatTooltip.ngAcceptInputType_hideDelay;\n    /** @type {?} */\n    MatTooltip.ngAcceptInputType_showDelay;\n    /** @type {?} */\n    MatTooltip.prototype._overlayRef;\n    /** @type {?} */\n    MatTooltip.prototype._tooltipInstance;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._portal;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._position;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._tooltipClass;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._scrollStrategy;\n    /**\n     * The default delay in ms before showing the tooltip after show is called\n     * @type {?}\n     */\n    MatTooltip.prototype.showDelay;\n    /**\n     * The default delay in ms before hiding the tooltip after hide is called\n     * @type {?}\n     */\n    MatTooltip.prototype.hideDelay;\n    /**\n     * How touch gestures should be handled by the tooltip. On touch devices the tooltip directive\n     * uses a long press gesture to show and hide, however it can conflict with the native browser\n     * gestures. To work around the conflict, Angular Material disables native gestures on the\n     * trigger, but that might not be desirable on particular elements (e.g. inputs and draggable\n     * elements). The different values for this option configure the touch event handling as follows:\n     * - `auto` - Enables touch gestures for all elements, but tries to avoid conflicts with native\n     *   browser gestures on particular elements. In particular, it allows text selection on inputs\n     *   and textareas, and preserves the native browser dragging on elements marked as `draggable`.\n     * - `on` - Enables touch gestures for all elements and disables native\n     *   browser gestures with no exceptions.\n     * - `off` - Disables touch gestures. Note that this will prevent the tooltip from\n     *   showing on touch devices.\n     * @type {?}\n     */\n    MatTooltip.prototype.touchGestures;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._message;\n    /**\n     * Manually-bound passive event listeners.\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._passiveListeners;\n    /**\n     * Timer started at the last `touchstart` event.\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._touchstartTimeout;\n    /**\n     * Emits when the component is destroyed.\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._destroyed;\n    /**\n     * Handles the keydown events on the host element.\n     * Needs to be an arrow function so that we can use it in addEventListener.\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._handleKeydown;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._overlay;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._scrollDispatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._viewContainerRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._platform;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._ariaDescriber;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._focusMonitor;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._dir;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatTooltip.prototype._defaultOptions;\n}\n/**\n * Internal component that wraps the tooltip's content.\n * \\@docs-private\n */\nclass TooltipComponent {\n    /**\n     * @param {?} _changeDetectorRef\n     * @param {?} _breakpointObserver\n     */\n    constructor(_changeDetectorRef, _breakpointObserver) {\n        this._changeDetectorRef = _changeDetectorRef;\n        this._breakpointObserver = _breakpointObserver;\n        /**\n         * Property watched by the animation framework to show or hide the tooltip\n         */\n        this._visibility = 'initial';\n        /**\n         * Whether interactions on the page should close the tooltip\n         */\n        this._closeOnInteraction = false;\n        /**\n         * Subject for notifying that the tooltip has been hidden from the view\n         */\n        this._onHide = new Subject();\n        /**\n         * Stream that emits whether the user has a handset-sized display.\n         */\n        this._isHandset = this._breakpointObserver.observe(Breakpoints.Handset);\n    }\n    /**\n     * Shows the tooltip with an animation originating from the provided origin\n     * @param {?} delay Amount of milliseconds to the delay showing the tooltip.\n     * @return {?}\n     */\n    show(delay) {\n        // Cancel the delayed hide if it is scheduled\n        if (this._hideTimeoutId) {\n            clearTimeout(this._hideTimeoutId);\n            this._hideTimeoutId = null;\n        }\n        // Body interactions should cancel the tooltip if there is a delay in showing.\n        this._closeOnInteraction = true;\n        this._showTimeoutId = setTimeout((/**\n         * @return {?}\n         */\n        () => {\n            this._visibility = 'visible';\n            this._showTimeoutId = null;\n            // Mark for check so if any parent component has set the\n            // ChangeDetectionStrategy to OnPush it will be checked anyways\n            this._markForCheck();\n        }), delay);\n    }\n    /**\n     * Begins the animation to hide the tooltip after the provided delay in ms.\n     * @param {?} delay Amount of milliseconds to delay showing the tooltip.\n     * @return {?}\n     */\n    hide(delay) {\n        // Cancel the delayed show if it is scheduled\n        if (this._showTimeoutId) {\n            clearTimeout(this._showTimeoutId);\n            this._showTimeoutId = null;\n        }\n        this._hideTimeoutId = setTimeout((/**\n         * @return {?}\n         */\n        () => {\n            this._visibility = 'hidden';\n            this._hideTimeoutId = null;\n            // Mark for check so if any parent component has set the\n            // ChangeDetectionStrategy to OnPush it will be checked anyways\n            this._markForCheck();\n        }), delay);\n    }\n    /**\n     * Returns an observable that notifies when the tooltip has been hidden from view.\n     * @return {?}\n     */\n    afterHidden() {\n        return this._onHide.asObservable();\n    }\n    /**\n     * Whether the tooltip is being displayed.\n     * @return {?}\n     */\n    isVisible() {\n        return this._visibility === 'visible';\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._onHide.complete();\n    }\n    /**\n     * @return {?}\n     */\n    _animationStart() {\n        this._closeOnInteraction = false;\n    }\n    /**\n     * @param {?} event\n     * @return {?}\n     */\n    _animationDone(event) {\n        /** @type {?} */\n        const toState = (/** @type {?} */ (event.toState));\n        if (toState === 'hidden' && !this.isVisible()) {\n            this._onHide.next();\n        }\n        if (toState === 'visible' || toState === 'hidden') {\n            this._closeOnInteraction = true;\n        }\n    }\n    /**\n     * Interactions on the HTML body should close the tooltip immediately as defined in the\n     * material design spec.\n     * https://material.io/design/components/tooltips.html#behavior\n     * @return {?}\n     */\n    _handleBodyInteraction() {\n        if (this._closeOnInteraction) {\n            this.hide(0);\n        }\n    }\n    /**\n     * Marks that the tooltip needs to be checked in the next change detection run.\n     * Mainly used for rendering the initial text before positioning a tooltip, which\n     * can be problematic in components with OnPush change detection.\n     * @return {?}\n     */\n    _markForCheck() {\n        this._changeDetectorRef.markForCheck();\n    }\n}\nTooltipComponent.ɵfac = function TooltipComponent_Factory(t) { return new (t || TooltipComponent)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc6.BreakpointObserver)); };\nTooltipComponent.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: TooltipComponent, selectors: [[\"mat-tooltip-component\"]], hostAttrs: [\"aria-hidden\", \"true\"], hostVars: 2, hostBindings: function TooltipComponent_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"click\", function TooltipComponent_click_HostBindingHandler() { return ctx._handleBodyInteraction(); }, false, ɵngcc0.ɵɵresolveBody);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵstyleProp(\"zoom\", ctx._visibility === \"visible\" ? 1 : null);\n    } }, decls: 3, vars: 7, consts: [[1, \"mat-tooltip\", 3, \"ngClass\"]], template: function TooltipComponent_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵelementStart(0, \"div\", 0);\n        ɵngcc0.ɵɵlistener(\"@state.start\", function TooltipComponent_Template_div_animation_state_start_0_listener() { return ctx._animationStart(); })(\"@state.done\", function TooltipComponent_Template_div_animation_state_done_0_listener($event) { return ctx._animationDone($event); });\n        ɵngcc0.ɵɵpipe(1, \"async\");\n        ɵngcc0.ɵɵtext(2);\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        var tmp_0_0 = null;\n        const currVal_0 = (tmp_0_0 = ɵngcc0.ɵɵpipeBind1(1, 5, ctx._isHandset)) == null ? null : tmp_0_0.matches;\n        ɵngcc0.ɵɵclassProp(\"mat-tooltip-handset\", currVal_0);\n        ɵngcc0.ɵɵproperty(\"ngClass\", ctx.tooltipClass)(\"@state\", ctx._visibility);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵtextInterpolate(ctx.message);\n    } }, directives: [ɵngcc7.NgClass], pipes: [ɵngcc7.AsyncPipe], styles: [\".mat-tooltip-panel{pointer-events:none !important}.mat-tooltip{color:#fff;border-radius:4px;margin:14px;max-width:250px;padding-left:8px;padding-right:8px;overflow:hidden;text-overflow:ellipsis}.cdk-high-contrast-active .mat-tooltip{outline:solid 1px}.mat-tooltip-handset{margin:24px;padding-left:16px;padding-right:16px}\\n\"], encapsulation: 2, data: { animation: [matTooltipAnimations.tooltipState] }, changeDetection: 0 });\n/** @nocollapse */\nTooltipComponent.ctorParameters = () => [\n    { type: ChangeDetectorRef },\n    { type: BreakpointObserver }\n];\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(TooltipComponent, [{\n        type: Component,\n        args: [{\n                selector: 'mat-tooltip-component',\n                template: \"<div class=\\\"mat-tooltip\\\"\\n     [ngClass]=\\\"tooltipClass\\\"\\n     [class.mat-tooltip-handset]=\\\"(_isHandset | async)?.matches\\\"\\n     [@state]=\\\"_visibility\\\"\\n     (@state.start)=\\\"_animationStart()\\\"\\n     (@state.done)=\\\"_animationDone($event)\\\">{{message}}</div>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                animations: [matTooltipAnimations.tooltipState],\n                host: {\n                    // Forces the element to have a layout in IE and Edge. This fixes issues where the element\n                    // won't be rendered if the animations are disabled or there is no web animations polyfill.\n                    '[style.zoom]': '_visibility === \"visible\" ? 1 : null',\n                    '(body:click)': 'this._handleBodyInteraction()',\n                    'aria-hidden': 'true'\n                },\n                styles: [\".mat-tooltip-panel{pointer-events:none !important}.mat-tooltip{color:#fff;border-radius:4px;margin:14px;max-width:250px;padding-left:8px;padding-right:8px;overflow:hidden;text-overflow:ellipsis}.cdk-high-contrast-active .mat-tooltip{outline:solid 1px}.mat-tooltip-handset{margin:24px;padding-left:16px;padding-right:16px}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc6.BreakpointObserver }]; }, null); })();\nif (false) {\n    /**\n     * Message to display in the tooltip\n     * @type {?}\n     */\n    TooltipComponent.prototype.message;\n    /**\n     * Classes to be added to the tooltip. Supports the same syntax as `ngClass`.\n     * @type {?}\n     */\n    TooltipComponent.prototype.tooltipClass;\n    /**\n     * The timeout ID of any current timer set to show the tooltip\n     * @type {?}\n     */\n    TooltipComponent.prototype._showTimeoutId;\n    /**\n     * The timeout ID of any current timer set to hide the tooltip\n     * @type {?}\n     */\n    TooltipComponent.prototype._hideTimeoutId;\n    /**\n     * Property watched by the animation framework to show or hide the tooltip\n     * @type {?}\n     */\n    TooltipComponent.prototype._visibility;\n    /**\n     * Whether interactions on the page should close the tooltip\n     * @type {?}\n     * @private\n     */\n    TooltipComponent.prototype._closeOnInteraction;\n    /**\n     * Subject for notifying that the tooltip has been hidden from the view\n     * @type {?}\n     * @private\n     */\n    TooltipComponent.prototype._onHide;\n    /**\n     * Stream that emits whether the user has a handset-sized display.\n     * @type {?}\n     */\n    TooltipComponent.prototype._isHandset;\n    /**\n     * @type {?}\n     * @private\n     */\n    TooltipComponent.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    TooltipComponent.prototype._breakpointObserver;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/tooltip/tooltip-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatTooltipModule {\n}\nMatTooltipModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatTooltipModule });\nMatTooltipModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatTooltipModule_Factory(t) { return new (t || MatTooltipModule)(); }, providers: [MAT_TOOLTIP_SCROLL_STRATEGY_FACTORY_PROVIDER], imports: [[\n            A11yModule,\n            CommonModule,\n            OverlayModule,\n            MatCommonModule,\n        ], MatCommonModule, CdkScrollableModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatTooltipModule, { declarations: function () { return [MatTooltip, TooltipComponent]; }, imports: function () { return [A11yModule,\n        CommonModule,\n        OverlayModule,\n        MatCommonModule]; }, exports: function () { return [MatTooltip, TooltipComponent, MatCommonModule, CdkScrollableModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatTooltipModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    A11yModule,\n                    CommonModule,\n                    OverlayModule,\n                    MatCommonModule,\n                ],\n                exports: [MatTooltip, TooltipComponent, MatCommonModule, CdkScrollableModule],\n                declarations: [MatTooltip, TooltipComponent],\n                entryComponents: [TooltipComponent],\n                providers: [MAT_TOOLTIP_SCROLL_STRATEGY_FACTORY_PROVIDER]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/tooltip/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_TOOLTIP_DEFAULT_OPTIONS, MAT_TOOLTIP_DEFAULT_OPTIONS_FACTORY, MAT_TOOLTIP_SCROLL_STRATEGY, MAT_TOOLTIP_SCROLL_STRATEGY_FACTORY, MAT_TOOLTIP_SCROLL_STRATEGY_FACTORY_PROVIDER, MatTooltip, MatTooltipModule, SCROLL_THROTTLE_MS, TOOLTIP_PANEL_CLASS, TooltipComponent, getMatTooltipInvalidPositionError, matTooltipAnimations };\n\n//# sourceMappingURL=tooltip.js.map","<div class=\"left\">\n    <ng-container *ngIf=\"activeObjId$ | async\">\n        <button mat-icon-button (click)=\"activeObject.duplicate()\" [matTooltip]=\"'Duplicate' | trans\">\n            <mat-icon svgIcon=\"copy-custom\"></mat-icon>\n        </button>\n\n        <button mat-icon-button (click)=\"activeObject.flipHorizontal()\" [matTooltip]=\"'Flip' | trans\">\n            <mat-icon svgIcon=\"flip\"></mat-icon>\n        </button>\n\n        <button mat-icon-button (click)=\"bringActiveObjectToFront()\" [matTooltip]=\"'Bring to front' | trans\">\n            <mat-icon svgIcon=\"flip-to-front\"></mat-icon>\n        </button>\n\n        <button mat-icon-button (click)=\"deleteObject()\" [matTooltip]=\"'Delete' | trans\">\n            <mat-icon svgIcon=\"delete-custom\"></mat-icon>\n        </button>\n\n\n        <button mat-icon-button (click)=\"openObjSettingsPanel()\" [disabled]=\"dirty$ | async\" [matTooltip]=\"'Customize' | trans\">\n            <mat-icon svgIcon=\"settings-custom\"></mat-icon>\n        </button>\n    </ng-container>\n</div>\n\n<div class=\"right\" *ngIf=\"mobileMode\">\n    <button mat-icon-button [disabled]=\"!(canUndo$ | async)\" (click)=\"history.undo()\">\n        <mat-icon svgIcon=\"undo\"></mat-icon>\n    </button>\n    <button mat-icon-button [disabled]=\"!(canRedo$ | async)\" (click)=\"history.redo()\">\n        <mat-icon svgIcon=\"redo\"></mat-icon>\n    </button>\n</div>\n","import {Component, HostBinding, Input, ViewEncapsulation} from '@angular/core';\r\nimport {HistoryToolService} from '../../image-editor/history/history-tool.service';\r\nimport {ActiveObjectService} from '../../image-editor/canvas/active-object/active-object.service';\r\nimport {EditorControlsService} from '../toolbar-controls/editor-controls.service';\r\nimport {ObjectListService} from '../../image-editor/objects/object-list.service';\r\nimport {Select, Store} from '@ngxs/store';\r\nimport {HistoryState} from '../state/history/history.state';\r\nimport {DrawerName} from '../toolbar-controls/drawers/drawer-name.enum';\r\nimport {EditorState} from '../../image-editor/state/editor-state';\r\nimport {Observable} from 'rxjs';\r\nimport {ObjectNames} from '../../image-editor/objects/object-names.enum';\r\nimport {OpenPanel} from '../../image-editor/state/editor-state-actions';\r\nimport {BreakpointsService} from '@common/core/ui/breakpoints.service';\r\n\r\n@Component({\r\n    selector: 'floating-object-controls',\r\n    templateUrl: './floating-object-controls.component.html',\r\n    styleUrls: ['./floating-object-controls.component.scss'],\r\n    encapsulation: ViewEncapsulation.None\r\n})\r\nexport class FloatingObjectControlsComponent {\r\n    @Select(HistoryState.canUndo) canUndo$: Observable<boolean>;\r\n    @Select(HistoryState.canRedo) canRedo$: Observable<boolean>;\r\n    @Select(EditorState.activeObjId) activeObjId$: Observable<string>;\r\n    @Select(EditorState.dirty) dirty$: Observable<boolean>;\r\n    @Input() @HostBinding('class.mobile-mode') mobileMode = false;\r\n\r\n    constructor(\r\n        public history: HistoryToolService,\r\n        public activeObject: ActiveObjectService,\r\n        public controls: EditorControlsService,\r\n        public breakpoints: BreakpointsService,\r\n        private objects: ObjectListService,\r\n        private store: Store,\r\n    ) {}\r\n\r\n    public deleteObject() {\r\n        const obj = this.activeObject.get();\r\n        if ( ! obj) return;\r\n        this.activeObject.delete();\r\n        this.history.add({name: `Deleted: ${obj.name}`, icon: 'delete-custom'});\r\n    }\r\n\r\n    /**\r\n     * Open drawer for adding more of current active object.\r\n     */\r\n    public openObjectDrawer() {\r\n        switch (this.activeObject.get().name) {\r\n            case ObjectNames.shape.name:\r\n                this.controls.openPanel(DrawerName.SHAPES);\r\n                break;\r\n            case ObjectNames.sticker.name:\r\n                this.controls.openPanel(DrawerName.STICKERS);\r\n                break;\r\n            case ObjectNames.text.name:\r\n                this.controls.openPanel(DrawerName.TEXT);\r\n                break;\r\n        }\r\n    }\r\n\r\n    public openObjSettingsPanel() {\r\n        this.store.dispatch(new OpenPanel(DrawerName.OBJECT_SETTINGS));\r\n    }\r\n\r\n    public bringActiveObjectToFront() {\r\n        this.activeObject.bringToFront();\r\n        this.objects.syncObjects();\r\n    }\r\n}\r\n","<ng-container [ngSwitch]=\"type$ | async\">\n    <img [src]=\"src\" [alt]=\"alt\" [ngClass]=\"className\" *ngSwitchCase=\"'absolute'\">\n    <img [src]=\"src\" [alt]=\"alt\" [ngClass]=\"className\" *ngSwitchCase=\"'relative'\">\n    <mat-icon [svgIcon]=\"src\" *ngSwitchCase=\"'icon'\" [ngClass]=\"className\"></mat-icon>\n</ng-container>\n","import {ChangeDetectionStrategy, Component, ElementRef, Input, OnChanges, OnInit} from '@angular/core';\nimport {Settings} from '../../config/settings.service';\nimport {BehaviorSubject} from 'rxjs';\nimport {isAbsoluteUrl} from '@common/core/utils/is-absolute-url';\n\n@Component({\n    selector: 'image-or-icon',\n    templateUrl: './image-or-icon.component.html',\n    styleUrls: ['./image-or-icon.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush\n})\nexport class ImageOrIconComponent implements OnChanges, OnInit {\n    @Input() src: string;\n    @Input() alt = '';\n    @Input() className = '';\n\n    public type$ = new BehaviorSubject<'absolute'|'relative'|'icon'>(null);\n\n    constructor(public settings: Settings, private el: ElementRef<HTMLElement>) {}\n\n    ngOnInit() {\n        this.type$.subscribe(type => {\n            this.el.nativeElement.classList.remove('image');\n            this.el.nativeElement.classList.remove('icon');\n            if (type === 'absolute' || type === 'relative') {\n                this.el.nativeElement.classList.add('image');\n            } else {\n                this.el.nativeElement.classList.add('icon');\n            }\n        });\n    }\n\n    ngOnChanges() {\n        if ( ! this.src) return;\n        if (isAbsoluteUrl(this.src)) {\n            this.type$.next('absolute');\n        } else if (this.src.indexOf('.') > -1) {\n            this.type$.next('relative');\n        } else {\n            this.type$.next('icon');\n        }\n    }\n}\n","export function isAbsoluteUrl(url: string): boolean {\r\n    if ( ! url) return false;\r\n\r\n    // Don't match Windows paths `c:\\`\r\n    if (/^[a-z]:\\\\/.test(url)) {\r\n        return false;\r\n    }\r\n\r\n    // Scheme: https://tools.ietf.org/html/rfc3986#section-3.1\r\n    // Absolute URL: https://tools.ietf.org/html/rfc3986#section-4.3\r\n    return /^[a-z][a-z\\d+\\-.]*:/.test(url);\r\n}\r\n","<div class=\"scroll-container\" customScrollbar [suppressX]=\"false\">\n    <ng-container *ngFor=\"let item of navItems$ | async\">\n        <div class=\"separator\" *ngIf=\"item.type === 'separator'\"></div>\n\n        <button *ngIf=\"item.type !== 'separator'\"\n                class=\"no-style control-button\"\n                (click)=\"executeNavItemAction(item)\"\n                [disabled]=\"navItemIsDisabled(item)\">\n            <image-or-icon class=\"control-icon inherit-size\" [src]=\"item.icon\"></image-or-icon>\n            <span class=\"name\" trans>{{item.display_name || item.name}}</span>\n        </button>\n    </ng-container>\n</div>\n","import {ChangeDetectionStrategy, ChangeDetectorRef, Component, OnInit, ViewEncapsulation} from '@angular/core';\nimport {EditorControlsService} from '../editor-controls.service';\nimport {Settings} from 'common/core/config/settings.service';\nimport {CanvasService} from '../../../image-editor/canvas/canvas.service';\nimport {NavItem} from '../../../image-editor/default-settings';\nimport {ExportToolService} from '../../../image-editor/tools/export/export-tool.service';\nimport {MergeToolService} from '../../../image-editor/tools/merge/merge-tool.service';\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\nimport {Toast} from 'common/core/ui/toast.service';\nimport {Actions, ofActionSuccessful, Select, Store} from '@ngxs/store';\nimport {ObjectsSynced, OpenPanel} from '../../../image-editor/state/editor-state-actions';\nimport {HistoryNames} from '../../../image-editor/history/history-names.enum';\nimport {DrawerName} from '../drawers/drawer-name.enum';\nimport {EditorState} from '../../../image-editor/state/editor-state';\nimport {Observable} from 'rxjs/internal/Observable';\n\n@Component({\n    selector: 'navigation-bar',\n    templateUrl: './navigation-bar.component.html',\n    styleUrls: ['./navigation-bar.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None\n})\nexport class NavigationBarComponent implements OnInit {\n    @Select(EditorState.navItems) navItems$: Observable<NavItem[]>;\n\n    constructor(\n        public controls: EditorControlsService,\n        public canvas: CanvasService,\n        private saveTool: ExportToolService,\n        public config: Settings,\n        public mergeTool: MergeToolService,\n        private history: HistoryToolService,\n        private toast: Toast,\n        private store: Store,\n        private actions$: Actions,\n        private changeDetector: ChangeDetectorRef,\n    ) {}\n\n    ngOnInit(): void {\n        this.actions$\n            .pipe(ofActionSuccessful(ObjectsSynced))\n            .subscribe(() => {\n                this.changeDetector.markForCheck();\n            });\n    }\n\n    public executeNavItemAction(item: NavItem) {\n        if (item.action === 'merge') {\n            return this.merge();\n        } else if (typeof item.action === 'string') {\n            return this.store.dispatch(new OpenPanel(item.action as DrawerName));\n        } else if (typeof item.action === 'function') {\n            item.action();\n        }\n    }\n\n    /**\n     * Check if specified nav item should be disabled.\n     */\n    public navItemIsDisabled(item: NavItem): boolean {\n        const hasMainImage = !!this.canvas.getMainImage();\n\n        if (item.name === DrawerName.MERGE) {\n            return !this.mergeTool.canMerge();\n        } else if (item.name === DrawerName.TRANSFORM) {\n            return !hasMainImage;\n        } else {\n            return false;\n        }\n    }\n\n    private merge() {\n        this.mergeTool.apply().then(() => {\n            this.history.add(HistoryNames.MERGE);\n            this.toast.open('Objects merged.');\n        });\n    }\n}\n","import { __decorate } from 'tslib';\nimport { EventEmitter, Input, Output, HostListener, Directive, ElementRef, Injectable, ChangeDetectorRef, ViewChild, Component, ViewEncapsulation, Injector, ReflectiveInjector, ComponentFactoryResolver, ApplicationRef, ViewContainerRef, NgModule } from '@angular/core';\nimport { CommonModule } from '@angular/common';\n\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/common';\n\nconst _c0 = [\"dialogPopup\"];\nconst _c1 = [\"hueSlider\"];\nconst _c2 = [\"alphaSlider\"];\nfunction ColorPickerComponent_div_2_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelement(0, \"div\");\n} if (rf & 2) {\n    const ctx_r1 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵclassMapInterpolate1(\"arrow arrow-\", ctx_r1.cpUsePosition, \"\");\n    ɵngcc0.ɵɵstyleProp(\"top\", ctx_r1.arrowTop, \"px\");\n} }\nfunction ColorPickerComponent_div_3_Template(rf, ctx) { if (rf & 1) {\n    const _r17 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 26);\n    ɵngcc0.ɵɵlistener(\"newValue\", function ColorPickerComponent_div_3_Template_div_newValue_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r17); const ctx_r16 = ɵngcc0.ɵɵnextContext(); return ctx_r16.onColorChange($event); })(\"dragStart\", function ColorPickerComponent_div_3_Template_div_dragStart_0_listener() { ɵngcc0.ɵɵrestoreView(_r17); const ctx_r18 = ɵngcc0.ɵɵnextContext(); return ctx_r18.onDragStart(\"saturation-lightness\"); })(\"dragEnd\", function ColorPickerComponent_div_3_Template_div_dragEnd_0_listener() { ɵngcc0.ɵɵrestoreView(_r17); const ctx_r19 = ɵngcc0.ɵɵnextContext(); return ctx_r19.onDragEnd(\"saturation-lightness\"); });\n    ɵngcc0.ɵɵelement(1, \"div\", 13);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r2 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵstyleProp(\"background-color\", ctx_r2.hueSliderColor);\n    ɵngcc0.ɵɵproperty(\"rgX\", 1)(\"rgY\", 1);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵstyleProp(\"top\", ctx_r2.slider == null ? null : ctx_r2.slider.v, \"px\")(\"left\", ctx_r2.slider == null ? null : ctx_r2.slider.s, \"px\");\n} }\nfunction ColorPickerComponent_button_8_Template(rf, ctx) { if (rf & 1) {\n    const _r21 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"button\", 27);\n    ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_button_8_Template_button_click_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r21); const ctx_r20 = ɵngcc0.ɵɵnextContext(); return ctx_r20.onAddPresetColor($event, ctx_r20.selectedColor); });\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r3 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵclassMap(ctx_r3.cpAddColorButtonClass);\n    ɵngcc0.ɵɵproperty(\"disabled\", ctx_r3.cpPresetColors && ctx_r3.cpPresetColors.length >= ctx_r3.cpMaxPresetColorsLength);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate1(\" \", ctx_r3.cpAddColorButtonText, \" \");\n} }\nfunction ColorPickerComponent_div_10_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelement(0, \"div\", 28);\n} }\nfunction ColorPickerComponent_div_20_input_6_Template(rf, ctx) { if (rf & 1) {\n    const _r25 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"input\", 34);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_20_input_6_Template_input_keyup_enter_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r25); const ctx_r24 = ɵngcc0.ɵɵnextContext(2); return ctx_r24.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_20_input_6_Template_input_newValue_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r25); const ctx_r26 = ɵngcc0.ɵɵnextContext(2); return ctx_r26.onAlphaInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r22 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 1)(\"value\", ctx_r22.cmykText == null ? null : ctx_r22.cmykText.a);\n} }\nfunction ColorPickerComponent_div_20_div_16_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\");\n    ɵngcc0.ɵɵtext(1, \"A\");\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction ColorPickerComponent_div_20_Template(rf, ctx) { if (rf & 1) {\n    const _r28 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 29);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(2, \"input\", 31);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_20_Template_input_keyup_enter_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r27 = ɵngcc0.ɵɵnextContext(); return ctx_r27.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_20_Template_input_newValue_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r29 = ɵngcc0.ɵɵnextContext(); return ctx_r29.onCyanInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(3, \"input\", 31);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_20_Template_input_keyup_enter_3_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r30 = ɵngcc0.ɵɵnextContext(); return ctx_r30.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_20_Template_input_newValue_3_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r31 = ɵngcc0.ɵɵnextContext(); return ctx_r31.onMagentaInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(4, \"input\", 31);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_20_Template_input_keyup_enter_4_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r32 = ɵngcc0.ɵɵnextContext(); return ctx_r32.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_20_Template_input_newValue_4_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r33 = ɵngcc0.ɵɵnextContext(); return ctx_r33.onYellowInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(5, \"input\", 31);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_20_Template_input_keyup_enter_5_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r34 = ɵngcc0.ɵɵnextContext(); return ctx_r34.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_20_Template_input_newValue_5_listener($event) { ɵngcc0.ɵɵrestoreView(_r28); const ctx_r35 = ɵngcc0.ɵɵnextContext(); return ctx_r35.onBlackInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(6, ColorPickerComponent_div_20_input_6_Template, 1, 2, \"input\", 32);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(7, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(8, \"div\");\n    ɵngcc0.ɵɵtext(9, \"C\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(10, \"div\");\n    ɵngcc0.ɵɵtext(11, \"M\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(12, \"div\");\n    ɵngcc0.ɵɵtext(13, \"Y\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(14, \"div\");\n    ɵngcc0.ɵɵtext(15, \"K\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(16, ColorPickerComponent_div_20_div_16_Template, 2, 0, \"div\", 33);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r8 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵstyleProp(\"display\", ctx_r8.format !== 3 ? \"none\" : \"block\");\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 100)(\"value\", ctx_r8.cmykText == null ? null : ctx_r8.cmykText.c);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"rg\", 100)(\"value\", ctx_r8.cmykText == null ? null : ctx_r8.cmykText.m);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"rg\", 100)(\"value\", ctx_r8.cmykText == null ? null : ctx_r8.cmykText.y);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"rg\", 100)(\"value\", ctx_r8.cmykText == null ? null : ctx_r8.cmykText.k);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r8.cpAlphaChannel !== \"disabled\");\n    ɵngcc0.ɵɵadvance(10);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r8.cpAlphaChannel !== \"disabled\");\n} }\nfunction ColorPickerComponent_div_21_input_5_Template(rf, ctx) { if (rf & 1) {\n    const _r39 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"input\", 34);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_21_input_5_Template_input_keyup_enter_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r39); const ctx_r38 = ɵngcc0.ɵɵnextContext(2); return ctx_r38.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_21_input_5_Template_input_newValue_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r39); const ctx_r40 = ɵngcc0.ɵɵnextContext(2); return ctx_r40.onAlphaInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r36 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 1)(\"value\", ctx_r36.hslaText == null ? null : ctx_r36.hslaText.a);\n} }\nfunction ColorPickerComponent_div_21_div_13_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\");\n    ɵngcc0.ɵɵtext(1, \"A\");\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction ColorPickerComponent_div_21_Template(rf, ctx) { if (rf & 1) {\n    const _r42 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 35);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(2, \"input\", 36);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_21_Template_input_keyup_enter_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r42); const ctx_r41 = ɵngcc0.ɵɵnextContext(); return ctx_r41.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_21_Template_input_newValue_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r42); const ctx_r43 = ɵngcc0.ɵɵnextContext(); return ctx_r43.onHueInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(3, \"input\", 31);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_21_Template_input_keyup_enter_3_listener($event) { ɵngcc0.ɵɵrestoreView(_r42); const ctx_r44 = ɵngcc0.ɵɵnextContext(); return ctx_r44.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_21_Template_input_newValue_3_listener($event) { ɵngcc0.ɵɵrestoreView(_r42); const ctx_r45 = ɵngcc0.ɵɵnextContext(); return ctx_r45.onSaturationInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(4, \"input\", 31);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_21_Template_input_keyup_enter_4_listener($event) { ɵngcc0.ɵɵrestoreView(_r42); const ctx_r46 = ɵngcc0.ɵɵnextContext(); return ctx_r46.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_21_Template_input_newValue_4_listener($event) { ɵngcc0.ɵɵrestoreView(_r42); const ctx_r47 = ɵngcc0.ɵɵnextContext(); return ctx_r47.onLightnessInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(5, ColorPickerComponent_div_21_input_5_Template, 1, 2, \"input\", 32);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(6, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(7, \"div\");\n    ɵngcc0.ɵɵtext(8, \"H\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(9, \"div\");\n    ɵngcc0.ɵɵtext(10, \"S\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(11, \"div\");\n    ɵngcc0.ɵɵtext(12, \"L\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(13, ColorPickerComponent_div_21_div_13_Template, 2, 0, \"div\", 33);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r9 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵstyleProp(\"display\", ctx_r9.format !== 2 ? \"none\" : \"block\");\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 360)(\"value\", ctx_r9.hslaText == null ? null : ctx_r9.hslaText.h);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"rg\", 100)(\"value\", ctx_r9.hslaText == null ? null : ctx_r9.hslaText.s);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"rg\", 100)(\"value\", ctx_r9.hslaText == null ? null : ctx_r9.hslaText.l);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r9.cpAlphaChannel !== \"disabled\");\n    ɵngcc0.ɵɵadvance(8);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r9.cpAlphaChannel !== \"disabled\");\n} }\nfunction ColorPickerComponent_div_22_input_5_Template(rf, ctx) { if (rf & 1) {\n    const _r51 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"input\", 34);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_22_input_5_Template_input_keyup_enter_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r51); const ctx_r50 = ɵngcc0.ɵɵnextContext(2); return ctx_r50.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_22_input_5_Template_input_newValue_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r51); const ctx_r52 = ɵngcc0.ɵɵnextContext(2); return ctx_r52.onAlphaInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r48 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 1)(\"value\", ctx_r48.rgbaText == null ? null : ctx_r48.rgbaText.a);\n} }\nfunction ColorPickerComponent_div_22_div_13_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\");\n    ɵngcc0.ɵɵtext(1, \"A\");\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction ColorPickerComponent_div_22_Template(rf, ctx) { if (rf & 1) {\n    const _r54 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 37);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(2, \"input\", 38);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_22_Template_input_keyup_enter_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r54); const ctx_r53 = ɵngcc0.ɵɵnextContext(); return ctx_r53.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_22_Template_input_newValue_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r54); const ctx_r55 = ɵngcc0.ɵɵnextContext(); return ctx_r55.onRedInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(3, \"input\", 38);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_22_Template_input_keyup_enter_3_listener($event) { ɵngcc0.ɵɵrestoreView(_r54); const ctx_r56 = ɵngcc0.ɵɵnextContext(); return ctx_r56.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_22_Template_input_newValue_3_listener($event) { ɵngcc0.ɵɵrestoreView(_r54); const ctx_r57 = ɵngcc0.ɵɵnextContext(); return ctx_r57.onGreenInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(4, \"input\", 38);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_22_Template_input_keyup_enter_4_listener($event) { ɵngcc0.ɵɵrestoreView(_r54); const ctx_r58 = ɵngcc0.ɵɵnextContext(); return ctx_r58.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_22_Template_input_newValue_4_listener($event) { ɵngcc0.ɵɵrestoreView(_r54); const ctx_r59 = ɵngcc0.ɵɵnextContext(); return ctx_r59.onBlueInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(5, ColorPickerComponent_div_22_input_5_Template, 1, 2, \"input\", 32);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(6, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(7, \"div\");\n    ɵngcc0.ɵɵtext(8, \"R\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(9, \"div\");\n    ɵngcc0.ɵɵtext(10, \"G\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(11, \"div\");\n    ɵngcc0.ɵɵtext(12, \"B\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(13, ColorPickerComponent_div_22_div_13_Template, 2, 0, \"div\", 33);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r10 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵstyleProp(\"display\", ctx_r10.format !== 1 ? \"none\" : \"block\");\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 255)(\"value\", ctx_r10.rgbaText == null ? null : ctx_r10.rgbaText.r);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"rg\", 255)(\"value\", ctx_r10.rgbaText == null ? null : ctx_r10.rgbaText.g);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"rg\", 255)(\"value\", ctx_r10.rgbaText == null ? null : ctx_r10.rgbaText.b);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r10.cpAlphaChannel !== \"disabled\");\n    ɵngcc0.ɵɵadvance(8);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r10.cpAlphaChannel !== \"disabled\");\n} }\nfunction ColorPickerComponent_div_23_input_3_Template(rf, ctx) { if (rf & 1) {\n    const _r63 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"input\", 34);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_23_input_3_Template_input_keyup_enter_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r63); const ctx_r62 = ɵngcc0.ɵɵnextContext(2); return ctx_r62.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_23_input_3_Template_input_newValue_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r63); const ctx_r64 = ɵngcc0.ɵɵnextContext(2); return ctx_r64.onAlphaInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r60 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 1)(\"value\", ctx_r60.hexAlpha);\n} }\nfunction ColorPickerComponent_div_23_div_7_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\");\n    ɵngcc0.ɵɵtext(1, \"A\");\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction ColorPickerComponent_div_23_Template(rf, ctx) { if (rf & 1) {\n    const _r66 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 39);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(2, \"input\", 40);\n    ɵngcc0.ɵɵlistener(\"blur\", function ColorPickerComponent_div_23_Template_input_blur_2_listener() { ɵngcc0.ɵɵrestoreView(_r66); const ctx_r65 = ɵngcc0.ɵɵnextContext(); return ctx_r65.onHexInput(null); })(\"keyup.enter\", function ColorPickerComponent_div_23_Template_input_keyup_enter_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r66); const ctx_r67 = ɵngcc0.ɵɵnextContext(); return ctx_r67.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_23_Template_input_newValue_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r66); const ctx_r68 = ɵngcc0.ɵɵnextContext(); return ctx_r68.onHexInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(3, ColorPickerComponent_div_23_input_3_Template, 1, 2, \"input\", 32);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(4, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(5, \"div\");\n    ɵngcc0.ɵɵtext(6, \"Hex\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(7, ColorPickerComponent_div_23_div_7_Template, 2, 0, \"div\", 33);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r11 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵstyleProp(\"display\", ctx_r11.format !== 0 ? \"none\" : \"block\");\n    ɵngcc0.ɵɵclassProp(\"hex-alpha\", ctx_r11.cpAlphaChannel === \"forced\");\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵproperty(\"value\", ctx_r11.hexText);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r11.cpAlphaChannel === \"forced\");\n    ɵngcc0.ɵɵadvance(4);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r11.cpAlphaChannel === \"forced\");\n} }\nfunction ColorPickerComponent_div_24_input_3_Template(rf, ctx) { if (rf & 1) {\n    const _r71 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"input\", 34);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_24_input_3_Template_input_keyup_enter_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r71); const ctx_r70 = ɵngcc0.ɵɵnextContext(2); return ctx_r70.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_24_input_3_Template_input_newValue_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r71); const ctx_r72 = ɵngcc0.ɵɵnextContext(2); return ctx_r72.onAlphaInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r69 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 1)(\"value\", ctx_r69.hslaText == null ? null : ctx_r69.hslaText.a);\n} }\nfunction ColorPickerComponent_div_24_Template(rf, ctx) { if (rf & 1) {\n    const _r74 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 41);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(2, \"input\", 31);\n    ɵngcc0.ɵɵlistener(\"keyup.enter\", function ColorPickerComponent_div_24_Template_input_keyup_enter_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r74); const ctx_r73 = ɵngcc0.ɵɵnextContext(); return ctx_r73.onAcceptColor($event); })(\"newValue\", function ColorPickerComponent_div_24_Template_input_newValue_2_listener($event) { ɵngcc0.ɵɵrestoreView(_r74); const ctx_r75 = ɵngcc0.ɵɵnextContext(); return ctx_r75.onValueInput($event); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(3, ColorPickerComponent_div_24_input_3_Template, 1, 2, \"input\", 32);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(4, \"div\", 30);\n    ɵngcc0.ɵɵelementStart(5, \"div\");\n    ɵngcc0.ɵɵtext(6, \"V\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(7, \"div\");\n    ɵngcc0.ɵɵtext(8, \"A\");\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r12 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵproperty(\"rg\", 100)(\"value\", ctx_r12.hslaText == null ? null : ctx_r12.hslaText.l);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r12.cpAlphaChannel !== \"disabled\");\n} }\nfunction ColorPickerComponent_div_25_Template(rf, ctx) { if (rf & 1) {\n    const _r77 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 42);\n    ɵngcc0.ɵɵelementStart(1, \"span\", 43);\n    ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_div_25_Template_span_click_1_listener() { ɵngcc0.ɵɵrestoreView(_r77); const ctx_r76 = ɵngcc0.ɵɵnextContext(); return ctx_r76.onFormatToggle(0 - 1); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(2, \"span\", 43);\n    ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_div_25_Template_span_click_2_listener() { ɵngcc0.ɵɵrestoreView(_r77); const ctx_r78 = ɵngcc0.ɵɵnextContext(); return ctx_r78.onFormatToggle(1); });\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction ColorPickerComponent_div_26_div_4_div_1_span_1_Template(rf, ctx) { if (rf & 1) {\n    const _r85 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"span\", 50);\n    ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_div_26_div_4_div_1_span_1_Template_span_click_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r85); const color_r82 = ɵngcc0.ɵɵnextContext().$implicit; const ctx_r84 = ɵngcc0.ɵɵnextContext(3); return ctx_r84.onRemovePresetColor($event, color_r82); });\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r83 = ɵngcc0.ɵɵnextContext(4);\n    ɵngcc0.ɵɵclassMap(ctx_r83.cpRemoveColorButtonClass);\n} }\nfunction ColorPickerComponent_div_26_div_4_div_1_Template(rf, ctx) { if (rf & 1) {\n    const _r88 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 48);\n    ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_div_26_div_4_div_1_Template_div_click_0_listener() { ɵngcc0.ɵɵrestoreView(_r88); const color_r82 = ctx.$implicit; const ctx_r87 = ɵngcc0.ɵɵnextContext(3); return ctx_r87.setColorFromString(color_r82); });\n    ɵngcc0.ɵɵtemplate(1, ColorPickerComponent_div_26_div_4_div_1_span_1_Template, 1, 3, \"span\", 49);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const color_r82 = ctx.$implicit;\n    const ctx_r81 = ɵngcc0.ɵɵnextContext(3);\n    ɵngcc0.ɵɵstyleProp(\"background-color\", color_r82);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r81.cpAddColorButton);\n} }\nfunction ColorPickerComponent_div_26_div_4_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\");\n    ɵngcc0.ɵɵtemplate(1, ColorPickerComponent_div_26_div_4_div_1_Template, 2, 3, \"div\", 47);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r79 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵclassMap(ctx_r79.cpPresetColorsClass);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngForOf\", ctx_r79.cpPresetColors);\n} }\nfunction ColorPickerComponent_div_26_div_5_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\");\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r80 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵclassMap(ctx_r80.cpPresetEmptyMessageClass);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r80.cpPresetEmptyMessage);\n} }\nfunction ColorPickerComponent_div_26_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 44);\n    ɵngcc0.ɵɵelement(1, \"hr\");\n    ɵngcc0.ɵɵelementStart(2, \"div\", 45);\n    ɵngcc0.ɵɵtext(3);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(4, ColorPickerComponent_div_26_div_4_Template, 2, 4, \"div\", 46);\n    ɵngcc0.ɵɵtemplate(5, ColorPickerComponent_div_26_div_5_Template, 2, 4, \"div\", 46);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r14 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵadvance(3);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r14.cpPresetLabel);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r14.cpPresetColors == null ? null : ctx_r14.cpPresetColors.length);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", !(ctx_r14.cpPresetColors == null ? null : ctx_r14.cpPresetColors.length) && ctx_r14.cpAddColorButton);\n} }\nfunction ColorPickerComponent_div_27_button_1_Template(rf, ctx) { if (rf & 1) {\n    const _r92 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"button\", 53);\n    ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_div_27_button_1_Template_button_click_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r92); const ctx_r91 = ɵngcc0.ɵɵnextContext(2); return ctx_r91.onCancelColor($event); });\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r89 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵclassMap(ctx_r89.cpCancelButtonClass);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r89.cpCancelButtonText);\n} }\nfunction ColorPickerComponent_div_27_button_2_Template(rf, ctx) { if (rf & 1) {\n    const _r94 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"button\", 53);\n    ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_div_27_button_2_Template_button_click_0_listener($event) { ɵngcc0.ɵɵrestoreView(_r94); const ctx_r93 = ɵngcc0.ɵɵnextContext(2); return ctx_r93.onAcceptColor($event); });\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r90 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵclassMap(ctx_r90.cpOKButtonClass);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r90.cpOKButtonText);\n} }\nfunction ColorPickerComponent_div_27_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 51);\n    ɵngcc0.ɵɵtemplate(1, ColorPickerComponent_div_27_button_1_Template, 2, 4, \"button\", 52);\n    ɵngcc0.ɵɵtemplate(2, ColorPickerComponent_div_27_button_2_Template, 2, 4, \"button\", 52);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r15 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r15.cpCancelButton);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r15.cpOKButton);\n} }\nvar ColorFormats;\n(function (ColorFormats) {\n    ColorFormats[ColorFormats[\"HEX\"] = 0] = \"HEX\";\n    ColorFormats[ColorFormats[\"RGBA\"] = 1] = \"RGBA\";\n    ColorFormats[ColorFormats[\"HSLA\"] = 2] = \"HSLA\";\n    ColorFormats[ColorFormats[\"CMYK\"] = 3] = \"CMYK\";\n})(ColorFormats || (ColorFormats = {}));\nclass Rgba {\n    constructor(r, g, b, a) {\n        this.r = r;\n        this.g = g;\n        this.b = b;\n        this.a = a;\n    }\n}\nclass Hsva {\n    constructor(h, s, v, a) {\n        this.h = h;\n        this.s = s;\n        this.v = v;\n        this.a = a;\n    }\n}\nclass Hsla {\n    constructor(h, s, l, a) {\n        this.h = h;\n        this.s = s;\n        this.l = l;\n        this.a = a;\n    }\n}\nclass Cmyk {\n    constructor(c, m, y, k, a = 1) {\n        this.c = c;\n        this.m = m;\n        this.y = y;\n        this.k = k;\n        this.a = a;\n    }\n}\n\nfunction detectIE() {\n    let ua = '';\n    if (typeof navigator !== 'undefined') {\n        ua = navigator.userAgent.toLowerCase();\n    }\n    const msie = ua.indexOf('msie ');\n    if (msie > 0) {\n        // IE 10 or older => return version number\n        return parseInt(ua.substring(msie + 5, ua.indexOf('.', msie)), 10);\n    }\n    // Other browser\n    return false;\n}\nlet TextDirective = class TextDirective {\n    constructor() {\n        this.newValue = new EventEmitter();\n    }\n    inputChange(event) {\n        const value = event.target.value;\n        if (this.rg === undefined) {\n            this.newValue.emit(value);\n        }\n        else {\n            const numeric = parseFloat(value);\n            this.newValue.emit({ v: numeric, rg: this.rg });\n        }\n    }\n};\nTextDirective.ɵfac = function TextDirective_Factory(t) { return new (t || TextDirective)(); };\nTextDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: TextDirective, selectors: [[\"\", \"text\", \"\"]], hostBindings: function TextDirective_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"input\", function TextDirective_input_HostBindingHandler($event) { return ctx.inputChange($event); });\n    } }, inputs: { rg: \"rg\", text: \"text\" }, outputs: { newValue: \"newValue\" } });\n__decorate([\n    Input()\n], TextDirective.prototype, \"rg\", void 0);\n__decorate([\n    Input()\n], TextDirective.prototype, \"text\", void 0);\n__decorate([\n    Output()\n], TextDirective.prototype, \"newValue\", void 0);\n__decorate([\n    HostListener('input', ['$event'])\n], TextDirective.prototype, \"inputChange\", null);\nlet SliderDirective = class SliderDirective {\n    constructor(elRef) {\n        this.elRef = elRef;\n        this.dragEnd = new EventEmitter();\n        this.dragStart = new EventEmitter();\n        this.newValue = new EventEmitter();\n        this.listenerMove = (event) => this.move(event);\n        this.listenerStop = () => this.stop();\n    }\n    mouseDown(event) {\n        this.start(event);\n    }\n    touchStart(event) {\n        this.start(event);\n    }\n    move(event) {\n        event.preventDefault();\n        this.setCursor(event);\n    }\n    start(event) {\n        this.setCursor(event);\n        event.stopPropagation();\n        document.addEventListener('mouseup', this.listenerStop);\n        document.addEventListener('touchend', this.listenerStop);\n        document.addEventListener('mousemove', this.listenerMove);\n        document.addEventListener('touchmove', this.listenerMove);\n        this.dragStart.emit();\n    }\n    stop() {\n        document.removeEventListener('mouseup', this.listenerStop);\n        document.removeEventListener('touchend', this.listenerStop);\n        document.removeEventListener('mousemove', this.listenerMove);\n        document.removeEventListener('touchmove', this.listenerMove);\n        this.dragEnd.emit();\n    }\n    getX(event) {\n        const position = this.elRef.nativeElement.getBoundingClientRect();\n        const pageX = (event.pageX !== undefined) ? event.pageX : event.touches[0].pageX;\n        return pageX - position.left - window.pageXOffset;\n    }\n    getY(event) {\n        const position = this.elRef.nativeElement.getBoundingClientRect();\n        const pageY = (event.pageY !== undefined) ? event.pageY : event.touches[0].pageY;\n        return pageY - position.top - window.pageYOffset;\n    }\n    setCursor(event) {\n        const width = this.elRef.nativeElement.offsetWidth;\n        const height = this.elRef.nativeElement.offsetHeight;\n        const x = Math.max(0, Math.min(this.getX(event), width));\n        const y = Math.max(0, Math.min(this.getY(event), height));\n        if (this.rgX !== undefined && this.rgY !== undefined) {\n            this.newValue.emit({ s: x / width, v: (1 - y / height), rgX: this.rgX, rgY: this.rgY });\n        }\n        else if (this.rgX === undefined && this.rgY !== undefined) {\n            this.newValue.emit({ v: y / height, rgY: this.rgY });\n        }\n        else if (this.rgX !== undefined && this.rgY === undefined) {\n            this.newValue.emit({ v: x / width, rgX: this.rgX });\n        }\n    }\n};\nSliderDirective.ɵfac = function SliderDirective_Factory(t) { return new (t || SliderDirective)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef)); };\nSliderDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: SliderDirective, selectors: [[\"\", \"slider\", \"\"]], hostBindings: function SliderDirective_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"mousedown\", function SliderDirective_mousedown_HostBindingHandler($event) { return ctx.mouseDown($event); })(\"touchstart\", function SliderDirective_touchstart_HostBindingHandler($event) { return ctx.touchStart($event); });\n    } }, inputs: { rgX: \"rgX\", rgY: \"rgY\", slider: \"slider\" }, outputs: { dragEnd: \"dragEnd\", dragStart: \"dragStart\", newValue: \"newValue\" } });\nSliderDirective.ctorParameters = () => [\n    { type: ElementRef }\n];\n__decorate([\n    Input()\n], SliderDirective.prototype, \"rgX\", void 0);\n__decorate([\n    Input()\n], SliderDirective.prototype, \"rgY\", void 0);\n__decorate([\n    Input()\n], SliderDirective.prototype, \"slider\", void 0);\n__decorate([\n    Output()\n], SliderDirective.prototype, \"dragEnd\", void 0);\n__decorate([\n    Output()\n], SliderDirective.prototype, \"dragStart\", void 0);\n__decorate([\n    Output()\n], SliderDirective.prototype, \"newValue\", void 0);\n__decorate([\n    HostListener('mousedown', ['$event'])\n], SliderDirective.prototype, \"mouseDown\", null);\n__decorate([\n    HostListener('touchstart', ['$event'])\n], SliderDirective.prototype, \"touchStart\", null);\nclass SliderPosition {\n    constructor(h, s, v, a) {\n        this.h = h;\n        this.s = s;\n        this.v = v;\n        this.a = a;\n    }\n}\nclass SliderDimension {\n    constructor(h, s, v, a) {\n        this.h = h;\n        this.s = s;\n        this.v = v;\n        this.a = a;\n    }\n}\n\nlet ColorPickerService = class ColorPickerService {\n    constructor() {\n        this.active = null;\n    }\n    setActive(active) {\n        if (this.active && this.active !== active && this.active.cpDialogDisplay !== 'inline') {\n            this.active.closeDialog();\n        }\n        this.active = active;\n    }\n    hsva2hsla(hsva) {\n        const h = hsva.h, s = hsva.s, v = hsva.v, a = hsva.a;\n        if (v === 0) {\n            return new Hsla(h, 0, 0, a);\n        }\n        else if (s === 0 && v === 1) {\n            return new Hsla(h, 1, 1, a);\n        }\n        else {\n            const l = v * (2 - s) / 2;\n            return new Hsla(h, v * s / (1 - Math.abs(2 * l - 1)), l, a);\n        }\n    }\n    hsla2hsva(hsla) {\n        const h = Math.min(hsla.h, 1), s = Math.min(hsla.s, 1);\n        const l = Math.min(hsla.l, 1), a = Math.min(hsla.a, 1);\n        if (l === 0) {\n            return new Hsva(h, 0, 0, a);\n        }\n        else {\n            const v = l + s * (1 - Math.abs(2 * l - 1)) / 2;\n            return new Hsva(h, 2 * (v - l) / v, v, a);\n        }\n    }\n    hsvaToRgba(hsva) {\n        let r, g, b;\n        const h = hsva.h, s = hsva.s, v = hsva.v, a = hsva.a;\n        const i = Math.floor(h * 6);\n        const f = h * 6 - i;\n        const p = v * (1 - s);\n        const q = v * (1 - f * s);\n        const t = v * (1 - (1 - f) * s);\n        switch (i % 6) {\n            case 0:\n                r = v, g = t, b = p;\n                break;\n            case 1:\n                r = q, g = v, b = p;\n                break;\n            case 2:\n                r = p, g = v, b = t;\n                break;\n            case 3:\n                r = p, g = q, b = v;\n                break;\n            case 4:\n                r = t, g = p, b = v;\n                break;\n            case 5:\n                r = v, g = p, b = q;\n                break;\n            default:\n                r = 0, g = 0, b = 0;\n        }\n        return new Rgba(r, g, b, a);\n    }\n    cmykToRgb(cmyk) {\n        const r = (1 - cmyk.c) * (1 - cmyk.k);\n        const g = (1 - cmyk.m) * (1 - cmyk.k);\n        const b = (1 - cmyk.y) * (1 - cmyk.k);\n        return new Rgba(r, g, b, cmyk.a);\n    }\n    rgbaToCmyk(rgba) {\n        const k = 1 - Math.max(rgba.r, rgba.g, rgba.b);\n        if (k === 1) {\n            return new Cmyk(0, 0, 0, 1, rgba.a);\n        }\n        else {\n            const c = (1 - rgba.r - k) / (1 - k);\n            const m = (1 - rgba.g - k) / (1 - k);\n            const y = (1 - rgba.b - k) / (1 - k);\n            return new Cmyk(c, m, y, k, rgba.a);\n        }\n    }\n    rgbaToHsva(rgba) {\n        let h, s;\n        const r = Math.min(rgba.r, 1), g = Math.min(rgba.g, 1);\n        const b = Math.min(rgba.b, 1), a = Math.min(rgba.a, 1);\n        const max = Math.max(r, g, b), min = Math.min(r, g, b);\n        const v = max, d = max - min;\n        s = (max === 0) ? 0 : d / max;\n        if (max === min) {\n            h = 0;\n        }\n        else {\n            switch (max) {\n                case r:\n                    h = (g - b) / d + (g < b ? 6 : 0);\n                    break;\n                case g:\n                    h = (b - r) / d + 2;\n                    break;\n                case b:\n                    h = (r - g) / d + 4;\n                    break;\n                default:\n                    h = 0;\n            }\n            h /= 6;\n        }\n        return new Hsva(h, s, v, a);\n    }\n    rgbaToHex(rgba, allowHex8) {\n        /* tslint:disable:no-bitwise */\n        let hex = '#' + ((1 << 24) | (rgba.r << 16) | (rgba.g << 8) | rgba.b).toString(16).substr(1);\n        if (allowHex8) {\n            hex += ((1 << 8) | Math.round(rgba.a * 255)).toString(16).substr(1);\n        }\n        /* tslint:enable:no-bitwise */\n        return hex;\n    }\n    normalizeCMYK(cmyk) {\n        return new Cmyk(cmyk.c / 100, cmyk.m / 100, cmyk.y / 100, cmyk.k / 100, cmyk.a);\n    }\n    denormalizeCMYK(cmyk) {\n        return new Cmyk(Math.floor(cmyk.c * 100), Math.floor(cmyk.m * 100), Math.floor(cmyk.y * 100), Math.floor(cmyk.k * 100), cmyk.a);\n    }\n    denormalizeRGBA(rgba) {\n        return new Rgba(Math.round(rgba.r * 255), Math.round(rgba.g * 255), Math.round(rgba.b * 255), rgba.a);\n    }\n    stringToHsva(colorString = '', allowHex8 = false) {\n        let hsva = null;\n        colorString = (colorString || '').toLowerCase();\n        const stringParsers = [\n            {\n                re: /(rgb)a?\\(\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3})\\s*%?,\\s*(\\d{1,3})\\s*%?(?:,\\s*(\\d+(?:\\.\\d+)?)\\s*)?\\)/,\n                parse: function (execResult) {\n                    return new Rgba(parseInt(execResult[2], 10) / 255, parseInt(execResult[3], 10) / 255, parseInt(execResult[4], 10) / 255, isNaN(parseFloat(execResult[5])) ? 1 : parseFloat(execResult[5]));\n                }\n            }, {\n                re: /(hsl)a?\\(\\s*(\\d{1,3})\\s*,\\s*(\\d{1,3})%\\s*,\\s*(\\d{1,3})%\\s*(?:,\\s*(\\d+(?:\\.\\d+)?)\\s*)?\\)/,\n                parse: function (execResult) {\n                    return new Hsla(parseInt(execResult[2], 10) / 360, parseInt(execResult[3], 10) / 100, parseInt(execResult[4], 10) / 100, isNaN(parseFloat(execResult[5])) ? 1 : parseFloat(execResult[5]));\n                }\n            }\n        ];\n        if (allowHex8) {\n            stringParsers.push({\n                re: /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})?$/,\n                parse: function (execResult) {\n                    return new Rgba(parseInt(execResult[1], 16) / 255, parseInt(execResult[2], 16) / 255, parseInt(execResult[3], 16) / 255, parseInt(execResult[4] || 'FF', 16) / 255);\n                }\n            });\n        }\n        else {\n            stringParsers.push({\n                re: /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})$/,\n                parse: function (execResult) {\n                    return new Rgba(parseInt(execResult[1], 16) / 255, parseInt(execResult[2], 16) / 255, parseInt(execResult[3], 16) / 255, 1);\n                }\n            });\n        }\n        stringParsers.push({\n            re: /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])$/,\n            parse: function (execResult) {\n                return new Rgba(parseInt(execResult[1] + execResult[1], 16) / 255, parseInt(execResult[2] + execResult[2], 16) / 255, parseInt(execResult[3] + execResult[3], 16) / 255, 1);\n            }\n        });\n        for (const key in stringParsers) {\n            if (stringParsers.hasOwnProperty(key)) {\n                const parser = stringParsers[key];\n                const match = parser.re.exec(colorString), color = match && parser.parse(match);\n                if (color) {\n                    if (color instanceof Rgba) {\n                        hsva = this.rgbaToHsva(color);\n                    }\n                    else if (color instanceof Hsla) {\n                        hsva = this.hsla2hsva(color);\n                    }\n                    return hsva;\n                }\n            }\n        }\n        return hsva;\n    }\n    outputFormat(hsva, outputFormat, alphaChannel) {\n        if (outputFormat === 'auto') {\n            outputFormat = hsva.a < 1 ? 'rgba' : 'hex';\n        }\n        switch (outputFormat) {\n            case 'hsla':\n                const hsla = this.hsva2hsla(hsva);\n                const hslaText = new Hsla(Math.round((hsla.h) * 360), Math.round(hsla.s * 100), Math.round(hsla.l * 100), Math.round(hsla.a * 100) / 100);\n                if (hsva.a < 1 || alphaChannel === 'always') {\n                    return 'hsla(' + hslaText.h + ',' + hslaText.s + '%,' + hslaText.l + '%,' +\n                        hslaText.a + ')';\n                }\n                else {\n                    return 'hsl(' + hslaText.h + ',' + hslaText.s + '%,' + hslaText.l + '%)';\n                }\n            case 'rgba':\n                const rgba = this.denormalizeRGBA(this.hsvaToRgba(hsva));\n                if (hsva.a < 1 || alphaChannel === 'always') {\n                    return 'rgba(' + rgba.r + ',' + rgba.g + ',' + rgba.b + ',' +\n                        Math.round(rgba.a * 100) / 100 + ')';\n                }\n                else {\n                    return 'rgb(' + rgba.r + ',' + rgba.g + ',' + rgba.b + ')';\n                }\n            default:\n                const allowHex8 = (alphaChannel === 'always' || alphaChannel === 'forced');\n                return this.rgbaToHex(this.denormalizeRGBA(this.hsvaToRgba(hsva)), allowHex8);\n        }\n    }\n};\nColorPickerService.ɵfac = function ColorPickerService_Factory(t) { return new (t || ColorPickerService)(); };\nColorPickerService.ɵprov = ɵngcc0.ɵɵdefineInjectable({ token: ColorPickerService, factory: ColorPickerService.ɵfac });\n\nlet ColorPickerComponent = class ColorPickerComponent {\n    constructor(elRef, cdRef, service) {\n        this.elRef = elRef;\n        this.cdRef = cdRef;\n        this.service = service;\n        this.isIE10 = false;\n        this.dialogArrowSize = 10;\n        this.dialogArrowOffset = 15;\n        this.dialogInputFields = [\n            ColorFormats.HEX,\n            ColorFormats.RGBA,\n            ColorFormats.HSLA,\n            ColorFormats.CMYK\n        ];\n        this.useRootViewContainer = false;\n    }\n    handleEsc(event) {\n        if (this.show && this.cpDialogDisplay === 'popup') {\n            this.onCancelColor(event);\n        }\n    }\n    handleEnter(event) {\n        if (this.show && this.cpDialogDisplay === 'popup') {\n            this.onAcceptColor(event);\n        }\n    }\n    ngOnInit() {\n        this.slider = new SliderPosition(0, 0, 0, 0);\n        const hueWidth = this.hueSlider.nativeElement.offsetWidth || 140;\n        const alphaWidth = this.alphaSlider.nativeElement.offsetWidth || 140;\n        this.sliderDimMax = new SliderDimension(hueWidth, this.cpWidth, 130, alphaWidth);\n        if (this.cpCmykEnabled) {\n            this.format = ColorFormats.CMYK;\n        }\n        else if (this.cpOutputFormat === 'rgba') {\n            this.format = ColorFormats.RGBA;\n        }\n        else if (this.cpOutputFormat === 'hsla') {\n            this.format = ColorFormats.HSLA;\n        }\n        else {\n            this.format = ColorFormats.HEX;\n        }\n        this.listenerMouseDown = (event) => { this.onMouseDown(event); };\n        this.listenerResize = () => { this.onResize(); };\n        this.openDialog(this.initialColor, false);\n    }\n    ngOnDestroy() {\n        this.closeDialog();\n    }\n    ngAfterViewInit() {\n        if (this.cpWidth !== 230 || this.cpDialogDisplay === 'inline') {\n            const hueWidth = this.hueSlider.nativeElement.offsetWidth || 140;\n            const alphaWidth = this.alphaSlider.nativeElement.offsetWidth || 140;\n            this.sliderDimMax = new SliderDimension(hueWidth, this.cpWidth, 130, alphaWidth);\n            this.updateColorPicker(false);\n            this.cdRef.detectChanges();\n        }\n    }\n    openDialog(color, emit = true) {\n        this.service.setActive(this);\n        if (!this.width) {\n            this.cpWidth = this.directiveElementRef.nativeElement.offsetWidth;\n        }\n        if (!this.height) {\n            this.height = 320;\n        }\n        this.setInitialColor(color);\n        this.setColorFromString(color, emit);\n        this.openColorPicker();\n    }\n    closeDialog() {\n        this.closeColorPicker();\n    }\n    setupDialog(instance, elementRef, color, cpWidth, cpHeight, cpDialogDisplay, cpFallbackColor, cpColorMode, cpCmykEnabled, cpAlphaChannel, cpOutputFormat, cpDisableInput, cpIgnoredElements, cpSaveClickOutside, cpCloseClickOutside, cpUseRootViewContainer, cpPosition, cpPositionOffset, cpPositionRelativeToArrow, cpPresetLabel, cpPresetColors, cpPresetColorsClass, cpMaxPresetColorsLength, cpPresetEmptyMessage, cpPresetEmptyMessageClass, cpOKButton, cpOKButtonClass, cpOKButtonText, cpCancelButton, cpCancelButtonClass, cpCancelButtonText, cpAddColorButton, cpAddColorButtonClass, cpAddColorButtonText, cpRemoveColorButtonClass) {\n        this.setInitialColor(color);\n        this.setColorMode(cpColorMode);\n        this.isIE10 = (detectIE() === 10);\n        this.directiveInstance = instance;\n        this.directiveElementRef = elementRef;\n        this.cpDisableInput = cpDisableInput;\n        this.cpCmykEnabled = cpCmykEnabled;\n        this.cpAlphaChannel = cpAlphaChannel;\n        this.cpOutputFormat = cpOutputFormat;\n        this.cpDialogDisplay = cpDialogDisplay;\n        this.cpIgnoredElements = cpIgnoredElements;\n        this.cpSaveClickOutside = cpSaveClickOutside;\n        this.cpCloseClickOutside = cpCloseClickOutside;\n        this.useRootViewContainer = cpUseRootViewContainer;\n        this.width = this.cpWidth = parseInt(cpWidth, 10);\n        this.height = this.cpHeight = parseInt(cpHeight, 10);\n        this.cpPosition = cpPosition;\n        this.cpPositionOffset = parseInt(cpPositionOffset, 10);\n        this.cpOKButton = cpOKButton;\n        this.cpOKButtonText = cpOKButtonText;\n        this.cpOKButtonClass = cpOKButtonClass;\n        this.cpCancelButton = cpCancelButton;\n        this.cpCancelButtonText = cpCancelButtonText;\n        this.cpCancelButtonClass = cpCancelButtonClass;\n        this.fallbackColor = cpFallbackColor || '#fff';\n        this.setPresetConfig(cpPresetLabel, cpPresetColors);\n        this.cpPresetColorsClass = cpPresetColorsClass;\n        this.cpMaxPresetColorsLength = cpMaxPresetColorsLength;\n        this.cpPresetEmptyMessage = cpPresetEmptyMessage;\n        this.cpPresetEmptyMessageClass = cpPresetEmptyMessageClass;\n        this.cpAddColorButton = cpAddColorButton;\n        this.cpAddColorButtonText = cpAddColorButtonText;\n        this.cpAddColorButtonClass = cpAddColorButtonClass;\n        this.cpRemoveColorButtonClass = cpRemoveColorButtonClass;\n        if (!cpPositionRelativeToArrow) {\n            this.dialogArrowOffset = 0;\n        }\n        if (cpDialogDisplay === 'inline') {\n            this.dialogArrowSize = 0;\n            this.dialogArrowOffset = 0;\n        }\n        if (cpOutputFormat === 'hex' &&\n            cpAlphaChannel !== 'always' && cpAlphaChannel !== 'forced') {\n            this.cpAlphaChannel = 'disabled';\n        }\n    }\n    setColorMode(mode) {\n        switch (mode.toString().toUpperCase()) {\n            case '1':\n            case 'C':\n            case 'COLOR':\n                this.cpColorMode = 1;\n                break;\n            case '2':\n            case 'G':\n            case 'GRAYSCALE':\n                this.cpColorMode = 2;\n                break;\n            case '3':\n            case 'P':\n            case 'PRESETS':\n                this.cpColorMode = 3;\n                break;\n            default:\n                this.cpColorMode = 1;\n        }\n    }\n    setInitialColor(color) {\n        this.initialColor = color;\n    }\n    setPresetConfig(cpPresetLabel, cpPresetColors) {\n        this.cpPresetLabel = cpPresetLabel;\n        this.cpPresetColors = cpPresetColors;\n    }\n    setColorFromString(value, emit = true, update = true) {\n        let hsva;\n        if (this.cpAlphaChannel === 'always' || this.cpAlphaChannel === 'forced') {\n            hsva = this.service.stringToHsva(value, true);\n            if (!hsva && !this.hsva) {\n                hsva = this.service.stringToHsva(value, false);\n            }\n        }\n        else {\n            hsva = this.service.stringToHsva(value, false);\n        }\n        if (!hsva && !this.hsva) {\n            hsva = this.service.stringToHsva(this.fallbackColor, false);\n        }\n        if (hsva) {\n            this.hsva = hsva;\n            this.sliderH = this.hsva.h;\n            if (this.cpOutputFormat === 'hex' && this.cpAlphaChannel === 'disabled') {\n                this.hsva.a = 1;\n            }\n            this.updateColorPicker(emit, update);\n        }\n    }\n    onResize() {\n        if (this.position === 'fixed') {\n            this.setDialogPosition();\n        }\n        else if (this.cpDialogDisplay !== 'inline') {\n            this.closeColorPicker();\n        }\n    }\n    onDragEnd(slider) {\n        this.directiveInstance.sliderDragEnd({ slider: slider, color: this.outputColor });\n    }\n    onDragStart(slider) {\n        this.directiveInstance.sliderDragStart({ slider: slider, color: this.outputColor });\n    }\n    onMouseDown(event) {\n        if (this.show &&\n            !this.isIE10 && this.cpDialogDisplay === 'popup' &&\n            event.target !== this.directiveElementRef.nativeElement &&\n            !this.isDescendant(this.elRef.nativeElement, event.target) &&\n            !this.isDescendant(this.directiveElementRef.nativeElement, event.target) &&\n            this.cpIgnoredElements.filter((item) => item === event.target).length === 0) {\n            if (this.cpSaveClickOutside) {\n                this.directiveInstance.colorSelected(this.outputColor);\n            }\n            else {\n                this.hsva = null;\n                this.setColorFromString(this.initialColor, false);\n                if (this.cpCmykEnabled) {\n                    this.directiveInstance.cmykChanged(this.cmykColor);\n                }\n                this.directiveInstance.colorChanged(this.initialColor);\n                this.directiveInstance.colorCanceled();\n            }\n            if (this.cpCloseClickOutside) {\n                this.closeColorPicker();\n            }\n        }\n    }\n    onAcceptColor(event) {\n        event.stopPropagation();\n        if (this.outputColor) {\n            this.directiveInstance.colorSelected(this.outputColor);\n        }\n        if (this.cpDialogDisplay === 'popup') {\n            this.closeColorPicker();\n        }\n    }\n    onCancelColor(event) {\n        this.hsva = null;\n        event.stopPropagation();\n        this.directiveInstance.colorCanceled();\n        this.setColorFromString(this.initialColor, true);\n        if (this.cpDialogDisplay === 'popup') {\n            if (this.cpCmykEnabled) {\n                this.directiveInstance.cmykChanged(this.cmykColor);\n            }\n            this.directiveInstance.colorChanged(this.initialColor, true);\n            this.closeColorPicker();\n        }\n    }\n    onFormatToggle(change) {\n        const availableFormats = this.dialogInputFields.length -\n            (this.cpCmykEnabled ? 0 : 1);\n        const nextFormat = (((this.dialogInputFields.indexOf(this.format) + change) %\n            availableFormats) + availableFormats) % availableFormats;\n        this.format = this.dialogInputFields[nextFormat];\n    }\n    onColorChange(value) {\n        this.hsva.s = value.s / value.rgX;\n        this.hsva.v = value.v / value.rgY;\n        this.updateColorPicker();\n        this.directiveInstance.sliderChanged({\n            slider: 'lightness',\n            value: this.hsva.v,\n            color: this.outputColor\n        });\n        this.directiveInstance.sliderChanged({\n            slider: 'saturation',\n            value: this.hsva.s,\n            color: this.outputColor\n        });\n    }\n    onHueChange(value) {\n        this.hsva.h = value.v / value.rgX;\n        this.sliderH = this.hsva.h;\n        this.updateColorPicker();\n        this.directiveInstance.sliderChanged({\n            slider: 'hue',\n            value: this.hsva.h,\n            color: this.outputColor\n        });\n    }\n    onValueChange(value) {\n        this.hsva.v = value.v / value.rgX;\n        this.updateColorPicker();\n        this.directiveInstance.sliderChanged({\n            slider: 'value',\n            value: this.hsva.v,\n            color: this.outputColor\n        });\n    }\n    onAlphaChange(value) {\n        this.hsva.a = value.v / value.rgX;\n        this.updateColorPicker();\n        this.directiveInstance.sliderChanged({\n            slider: 'alpha',\n            value: this.hsva.a,\n            color: this.outputColor\n        });\n    }\n    onHexInput(value) {\n        if (value === null) {\n            this.updateColorPicker();\n        }\n        else {\n            if (value && value[0] !== '#') {\n                value = '#' + value;\n            }\n            let validHex = /^#([a-f0-9]{3}|[a-f0-9]{6})$/gi;\n            if (this.cpAlphaChannel === 'always') {\n                validHex = /^#([a-f0-9]{3}|[a-f0-9]{6}|[a-f0-9]{8})$/gi;\n            }\n            const valid = validHex.test(value);\n            if (valid) {\n                if (value.length < 5) {\n                    value = '#' + value.substring(1)\n                        .split('')\n                        .map(c => c + c)\n                        .join('');\n                }\n                if (this.cpAlphaChannel === 'forced') {\n                    value += Math.round(this.hsva.a * 255).toString(16);\n                }\n                this.setColorFromString(value, true, false);\n            }\n            this.directiveInstance.inputChanged({\n                input: 'hex',\n                valid: valid,\n                value: value,\n                color: this.outputColor\n            });\n        }\n    }\n    onRedInput(value) {\n        const rgba = this.service.hsvaToRgba(this.hsva);\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            rgba.r = value.v / value.rg;\n            this.hsva = this.service.rgbaToHsva(rgba);\n            this.sliderH = this.hsva.h;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'red',\n            valid: valid,\n            value: rgba.r,\n            color: this.outputColor\n        });\n    }\n    onBlueInput(value) {\n        const rgba = this.service.hsvaToRgba(this.hsva);\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            rgba.b = value.v / value.rg;\n            this.hsva = this.service.rgbaToHsva(rgba);\n            this.sliderH = this.hsva.h;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'blue',\n            valid: valid,\n            value: rgba.b,\n            color: this.outputColor\n        });\n    }\n    onGreenInput(value) {\n        const rgba = this.service.hsvaToRgba(this.hsva);\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            rgba.g = value.v / value.rg;\n            this.hsva = this.service.rgbaToHsva(rgba);\n            this.sliderH = this.hsva.h;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'green',\n            valid: valid,\n            value: rgba.g,\n            color: this.outputColor\n        });\n    }\n    onHueInput(value) {\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            this.hsva.h = value.v / value.rg;\n            this.sliderH = this.hsva.h;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'hue',\n            valid: valid,\n            value: this.hsva.h,\n            color: this.outputColor\n        });\n    }\n    onValueInput(value) {\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            this.hsva.v = value.v / value.rg;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'value',\n            valid: valid,\n            value: this.hsva.v,\n            color: this.outputColor\n        });\n    }\n    onAlphaInput(value) {\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            this.hsva.a = value.v / value.rg;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'alpha',\n            valid: valid,\n            value: this.hsva.a,\n            color: this.outputColor\n        });\n    }\n    onLightnessInput(value) {\n        const hsla = this.service.hsva2hsla(this.hsva);\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            hsla.l = value.v / value.rg;\n            this.hsva = this.service.hsla2hsva(hsla);\n            this.sliderH = this.hsva.h;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'lightness',\n            valid: valid,\n            value: hsla.l,\n            color: this.outputColor\n        });\n    }\n    onSaturationInput(value) {\n        const hsla = this.service.hsva2hsla(this.hsva);\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            hsla.s = value.v / value.rg;\n            this.hsva = this.service.hsla2hsva(hsla);\n            this.sliderH = this.hsva.h;\n            this.updateColorPicker();\n        }\n        this.directiveInstance.inputChanged({\n            input: 'saturation',\n            valid: valid,\n            value: hsla.s,\n            color: this.outputColor\n        });\n    }\n    onCyanInput(value) {\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            this.cmyk.c = value.v;\n            this.updateColorPicker(false, true, true);\n        }\n        this.directiveInstance.inputChanged({\n            input: 'cyan',\n            valid: true,\n            value: this.cmyk.c,\n            color: this.outputColor\n        });\n    }\n    onMagentaInput(value) {\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            this.cmyk.m = value.v;\n            this.updateColorPicker(false, true, true);\n        }\n        this.directiveInstance.inputChanged({\n            input: 'magenta',\n            valid: true,\n            value: this.cmyk.m,\n            color: this.outputColor\n        });\n    }\n    onYellowInput(value) {\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            this.cmyk.y = value.v;\n            this.updateColorPicker(false, true, true);\n        }\n        this.directiveInstance.inputChanged({\n            input: 'yellow',\n            valid: true,\n            value: this.cmyk.y,\n            color: this.outputColor\n        });\n    }\n    onBlackInput(value) {\n        const valid = !isNaN(value.v) && value.v >= 0 && value.v <= value.rg;\n        if (valid) {\n            this.cmyk.k = value.v;\n            this.updateColorPicker(false, true, true);\n        }\n        this.directiveInstance.inputChanged({\n            input: 'black',\n            valid: true,\n            value: this.cmyk.k,\n            color: this.outputColor\n        });\n    }\n    onAddPresetColor(event, value) {\n        event.stopPropagation();\n        if (!this.cpPresetColors.filter((color) => (color === value)).length) {\n            this.cpPresetColors = this.cpPresetColors.concat(value);\n            this.directiveInstance.presetColorsChanged(this.cpPresetColors);\n        }\n    }\n    onRemovePresetColor(event, value) {\n        event.stopPropagation();\n        this.cpPresetColors = this.cpPresetColors.filter((color) => (color !== value));\n        this.directiveInstance.presetColorsChanged(this.cpPresetColors);\n    }\n    // Private helper functions for the color picker dialog status\n    openColorPicker() {\n        if (!this.show) {\n            this.show = true;\n            this.hidden = true;\n            setTimeout(() => {\n                this.hidden = false;\n                this.setDialogPosition();\n                this.cdRef.detectChanges();\n            }, 0);\n            this.directiveInstance.stateChanged(true);\n            if (!this.isIE10) {\n                document.addEventListener('mousedown', this.listenerMouseDown);\n                document.addEventListener('touchstart', this.listenerMouseDown);\n            }\n            window.addEventListener('resize', this.listenerResize);\n        }\n    }\n    closeColorPicker() {\n        if (this.show) {\n            this.show = false;\n            this.directiveInstance.stateChanged(false);\n            if (!this.isIE10) {\n                document.removeEventListener('mousedown', this.listenerMouseDown);\n                document.removeEventListener('touchstart', this.listenerMouseDown);\n            }\n            window.removeEventListener('resize', this.listenerResize);\n            if (!this.cdRef['destroyed']) {\n                this.cdRef.detectChanges();\n            }\n        }\n    }\n    updateColorPicker(emit = true, update = true, cmykInput = false) {\n        if (this.sliderDimMax) {\n            if (this.cpColorMode === 2) {\n                this.hsva.s = 0;\n            }\n            let hue, hsla, rgba;\n            const lastOutput = this.outputColor;\n            hsla = this.service.hsva2hsla(this.hsva);\n            if (!this.cpCmykEnabled) {\n                rgba = this.service.denormalizeRGBA(this.service.hsvaToRgba(this.hsva));\n            }\n            else {\n                if (!cmykInput) {\n                    rgba = this.service.hsvaToRgba(this.hsva);\n                    this.cmyk = this.service.denormalizeCMYK(this.service.rgbaToCmyk(rgba));\n                }\n                else {\n                    rgba = this.service.cmykToRgb(this.service.normalizeCMYK(this.cmyk));\n                    this.hsva = this.service.rgbaToHsva(rgba);\n                }\n                rgba = this.service.denormalizeRGBA(rgba);\n                this.sliderH = this.hsva.h;\n            }\n            hue = this.service.denormalizeRGBA(this.service.hsvaToRgba(new Hsva(this.sliderH || this.hsva.h, 1, 1, 1)));\n            if (update) {\n                this.hslaText = new Hsla(Math.round((hsla.h) * 360), Math.round(hsla.s * 100), Math.round(hsla.l * 100), Math.round(hsla.a * 100) / 100);\n                this.rgbaText = new Rgba(rgba.r, rgba.g, rgba.b, Math.round(rgba.a * 100) / 100);\n                if (this.cpCmykEnabled) {\n                    this.cmykText = new Cmyk(this.cmyk.c, this.cmyk.m, this.cmyk.y, this.cmyk.k, Math.round(this.cmyk.a * 100) / 100);\n                }\n                const allowHex8 = this.cpAlphaChannel === 'always';\n                this.hexText = this.service.rgbaToHex(rgba, allowHex8);\n                this.hexAlpha = this.rgbaText.a;\n            }\n            if (this.cpOutputFormat === 'auto') {\n                if (this.format !== ColorFormats.RGBA && this.format !== ColorFormats.CMYK) {\n                    if (this.hsva.a < 1) {\n                        this.format = this.hsva.a < 1 ? ColorFormats.RGBA : ColorFormats.HEX;\n                    }\n                }\n            }\n            this.hueSliderColor = 'rgb(' + hue.r + ',' + hue.g + ',' + hue.b + ')';\n            this.alphaSliderColor = 'rgb(' + rgba.r + ',' + rgba.g + ',' + rgba.b + ')';\n            this.outputColor = this.service.outputFormat(this.hsva, this.cpOutputFormat, this.cpAlphaChannel);\n            this.selectedColor = this.service.outputFormat(this.hsva, 'rgba', null);\n            if (this.format !== ColorFormats.CMYK) {\n                this.cmykColor = '';\n            }\n            else {\n                if (this.cpAlphaChannel === 'always' || this.cpAlphaChannel === 'enabled' ||\n                    this.cpAlphaChannel === 'forced') {\n                    const alpha = Math.round(this.cmyk.a * 100) / 100;\n                    this.cmykColor = `cmyka(${this.cmyk.c},${this.cmyk.m},${this.cmyk.y},${this.cmyk.k},${alpha})`;\n                }\n                else {\n                    this.cmykColor = `cmyk(${this.cmyk.c},${this.cmyk.m},${this.cmyk.y},${this.cmyk.k})`;\n                }\n            }\n            this.slider = new SliderPosition((this.sliderH || this.hsva.h) * this.sliderDimMax.h - 8, this.hsva.s * this.sliderDimMax.s - 8, (1 - this.hsva.v) * this.sliderDimMax.v - 8, this.hsva.a * this.sliderDimMax.a - 8);\n            if (emit && lastOutput !== this.outputColor) {\n                if (this.cpCmykEnabled) {\n                    this.directiveInstance.cmykChanged(this.cmykColor);\n                }\n                this.directiveInstance.colorChanged(this.outputColor);\n            }\n        }\n    }\n    // Private helper functions for the color picker dialog positioning\n    setDialogPosition() {\n        if (this.cpDialogDisplay === 'inline') {\n            this.position = 'relative';\n        }\n        else {\n            let position = 'static', transform = '', style;\n            let parentNode = null, transformNode = null;\n            let node = this.directiveElementRef.nativeElement.parentNode;\n            const dialogHeight = this.dialogElement.nativeElement.offsetHeight;\n            while (node !== null && node.tagName !== 'HTML') {\n                style = window.getComputedStyle(node);\n                position = style.getPropertyValue('position');\n                transform = style.getPropertyValue('transform');\n                if (position !== 'static' && parentNode === null) {\n                    parentNode = node;\n                }\n                if (transform && transform !== 'none' && transformNode === null) {\n                    transformNode = node;\n                }\n                if (position === 'fixed') {\n                    parentNode = transformNode;\n                    break;\n                }\n                node = node.parentNode;\n            }\n            const boxDirective = this.createDialogBox(this.directiveElementRef.nativeElement, (position !== 'fixed'));\n            if (this.useRootViewContainer || (position === 'fixed' &&\n                (!parentNode || parentNode instanceof HTMLUnknownElement))) {\n                this.top = boxDirective.top;\n                this.left = boxDirective.left;\n            }\n            else {\n                if (parentNode === null) {\n                    parentNode = node;\n                }\n                const boxParent = this.createDialogBox(parentNode, (position !== 'fixed'));\n                this.top = boxDirective.top - boxParent.top;\n                this.left = boxDirective.left - boxParent.left;\n            }\n            if (position === 'fixed') {\n                this.position = 'fixed';\n            }\n            let usePosition = this.cpPosition;\n            if (this.cpPosition === 'auto') {\n                let usePositionX = 'right';\n                let usePositionY = 'bottom';\n                const winWidth = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);\n                const winHeight = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);\n                if (this.left + this.cpWidth > winWidth) {\n                    usePositionX = 'left';\n                }\n                if (this.top + dialogHeight > winHeight) {\n                    usePositionY = 'top';\n                }\n                usePosition = usePositionX + '-' + usePositionY;\n            }\n            this.cpUsePosition = usePosition;\n            if (usePosition === 'top') {\n                this.arrowTop = dialogHeight - 1;\n                this.top -= dialogHeight + this.dialogArrowSize;\n                this.left += this.cpPositionOffset / 100 * boxDirective.width - this.dialogArrowOffset;\n            }\n            else if (usePosition === 'bottom') {\n                this.top += boxDirective.height + this.dialogArrowSize;\n                this.left += this.cpPositionOffset / 100 * boxDirective.width - this.dialogArrowOffset;\n            }\n            else if (usePosition === 'top-left' || usePosition === 'left-top') {\n                this.top -= dialogHeight - boxDirective.height + boxDirective.height * this.cpPositionOffset / 100;\n                this.left -= this.cpWidth + this.dialogArrowSize - 2 - this.dialogArrowOffset;\n            }\n            else if (usePosition === 'top-right' || usePosition === 'right-top') {\n                this.top -= dialogHeight - boxDirective.height + boxDirective.height * this.cpPositionOffset / 100;\n                this.left += boxDirective.width + this.dialogArrowSize - 2 - this.dialogArrowOffset;\n            }\n            else if (usePosition === 'left' || usePosition === 'bottom-left' || usePosition === 'left-bottom') {\n                this.top += boxDirective.height * this.cpPositionOffset / 100 - this.dialogArrowOffset;\n                this.left -= this.cpWidth + this.dialogArrowSize - 2;\n            }\n            else { // usePosition === 'right' || usePosition === 'bottom-right' || usePosition === 'right-bottom'\n                this.top += boxDirective.height * this.cpPositionOffset / 100 - this.dialogArrowOffset;\n                this.left += boxDirective.width + this.dialogArrowSize - 2;\n            }\n        }\n    }\n    // Private helper functions for the color picker dialog positioning and opening\n    isDescendant(parent, child) {\n        let node = child.parentNode;\n        while (node !== null) {\n            if (node === parent) {\n                return true;\n            }\n            node = node.parentNode;\n        }\n        return false;\n    }\n    createDialogBox(element, offset) {\n        return {\n            top: element.getBoundingClientRect().top + (offset ? window.pageYOffset : 0),\n            left: element.getBoundingClientRect().left + (offset ? window.pageXOffset : 0),\n            width: element.offsetWidth,\n            height: element.offsetHeight\n        };\n    }\n};\nColorPickerComponent.ɵfac = function ColorPickerComponent_Factory(t) { return new (t || ColorPickerComponent)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ColorPickerService)); };\nColorPickerComponent.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: ColorPickerComponent, selectors: [[\"color-picker\"]], viewQuery: function ColorPickerComponent_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵstaticViewQuery(_c0, true);\n        ɵngcc0.ɵɵstaticViewQuery(_c1, true);\n        ɵngcc0.ɵɵstaticViewQuery(_c2, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.dialogElement = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.hueSlider = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.alphaSlider = _t.first);\n    } }, hostBindings: function ColorPickerComponent_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"keyup.esc\", function ColorPickerComponent_keyup_esc_HostBindingHandler($event) { return ctx.handleEsc($event); }, false, ɵngcc0.ɵɵresolveDocument)(\"keyup.enter\", function ColorPickerComponent_keyup_enter_HostBindingHandler($event) { return ctx.handleEnter($event); }, false, ɵngcc0.ɵɵresolveDocument);\n    } }, decls: 28, vars: 47, consts: [[1, \"color-picker\", 3, \"click\"], [\"dialogPopup\", \"\"], [3, \"class\", \"top\", 4, \"ngIf\"], [\"class\", \"saturation-lightness\", 3, \"slider\", \"rgX\", \"rgY\", \"background-color\", \"newValue\", \"dragStart\", \"dragEnd\", 4, \"ngIf\"], [1, \"hue-alpha\", \"box\"], [1, \"left\"], [1, \"selected-color-background\"], [1, \"selected-color\"], [\"type\", \"button\", 3, \"class\", \"disabled\", \"click\", 4, \"ngIf\"], [1, \"right\"], [\"style\", \"height: 16px;\", 4, \"ngIf\"], [1, \"hue\", 3, \"slider\", \"rgX\", \"newValue\", \"dragStart\", \"dragEnd\"], [\"hueSlider\", \"\"], [1, \"cursor\"], [1, \"value\", 3, \"slider\", \"rgX\", \"newValue\", \"dragStart\", \"dragEnd\"], [\"valueSlider\", \"\"], [1, \"alpha\", 3, \"slider\", \"rgX\", \"newValue\", \"dragStart\", \"dragEnd\"], [\"alphaSlider\", \"\"], [\"class\", \"cmyk-text\", 3, \"display\", 4, \"ngIf\"], [\"class\", \"hsla-text\", 3, \"display\", 4, \"ngIf\"], [\"class\", \"rgba-text\", 3, \"display\", 4, \"ngIf\"], [\"class\", \"hex-text\", 3, \"hex-alpha\", \"display\", 4, \"ngIf\"], [\"class\", \"value-text\", 4, \"ngIf\"], [\"class\", \"type-policy\", 4, \"ngIf\"], [\"class\", \"preset-area\", 4, \"ngIf\"], [\"class\", \"button-area\", 4, \"ngIf\"], [1, \"saturation-lightness\", 3, \"slider\", \"rgX\", \"rgY\", \"newValue\", \"dragStart\", \"dragEnd\"], [\"type\", \"button\", 3, \"disabled\", \"click\"], [2, \"height\", \"16px\"], [1, \"cmyk-text\"], [1, \"box\"], [\"type\", \"number\", \"pattern\", \"[0-9]*\", \"min\", \"0\", \"max\", \"100\", 3, \"text\", \"rg\", \"value\", \"keyup.enter\", \"newValue\"], [\"type\", \"number\", \"pattern\", \"[0-9]+([\\\\.,][0-9]{1,2})?\", \"min\", \"0\", \"max\", \"1\", \"step\", \"0.1\", 3, \"text\", \"rg\", \"value\", \"keyup.enter\", \"newValue\", 4, \"ngIf\"], [4, \"ngIf\"], [\"type\", \"number\", \"pattern\", \"[0-9]+([\\\\.,][0-9]{1,2})?\", \"min\", \"0\", \"max\", \"1\", \"step\", \"0.1\", 3, \"text\", \"rg\", \"value\", \"keyup.enter\", \"newValue\"], [1, \"hsla-text\"], [\"type\", \"number\", \"pattern\", \"[0-9]*\", \"min\", \"0\", \"max\", \"360\", 3, \"text\", \"rg\", \"value\", \"keyup.enter\", \"newValue\"], [1, \"rgba-text\"], [\"type\", \"number\", \"pattern\", \"[0-9]*\", \"min\", \"0\", \"max\", \"255\", 3, \"text\", \"rg\", \"value\", \"keyup.enter\", \"newValue\"], [1, \"hex-text\"], [3, \"text\", \"value\", \"blur\", \"keyup.enter\", \"newValue\"], [1, \"value-text\"], [1, \"type-policy\"], [1, \"type-policy-arrow\", 3, \"click\"], [1, \"preset-area\"], [1, \"preset-label\"], [3, \"class\", 4, \"ngIf\"], [\"class\", \"preset-color\", 3, \"backgroundColor\", \"click\", 4, \"ngFor\", \"ngForOf\"], [1, \"preset-color\", 3, \"click\"], [3, \"class\", \"click\", 4, \"ngIf\"], [3, \"click\"], [1, \"button-area\"], [\"type\", \"button\", 3, \"class\", \"click\", 4, \"ngIf\"], [\"type\", \"button\", 3, \"click\"]], template: function ColorPickerComponent_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵelementStart(0, \"div\", 0, 1);\n        ɵngcc0.ɵɵlistener(\"click\", function ColorPickerComponent_Template_div_click_0_listener($event) { return $event.stopPropagation(); });\n        ɵngcc0.ɵɵtemplate(2, ColorPickerComponent_div_2_Template, 1, 5, \"div\", 2);\n        ɵngcc0.ɵɵtemplate(3, ColorPickerComponent_div_3_Template, 2, 8, \"div\", 3);\n        ɵngcc0.ɵɵelementStart(4, \"div\", 4);\n        ɵngcc0.ɵɵelementStart(5, \"div\", 5);\n        ɵngcc0.ɵɵelement(6, \"div\", 6);\n        ɵngcc0.ɵɵelement(7, \"div\", 7);\n        ɵngcc0.ɵɵtemplate(8, ColorPickerComponent_button_8_Template, 2, 5, \"button\", 8);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(9, \"div\", 9);\n        ɵngcc0.ɵɵtemplate(10, ColorPickerComponent_div_10_Template, 1, 0, \"div\", 10);\n        ɵngcc0.ɵɵelementStart(11, \"div\", 11, 12);\n        ɵngcc0.ɵɵlistener(\"newValue\", function ColorPickerComponent_Template_div_newValue_11_listener($event) { return ctx.onHueChange($event); })(\"dragStart\", function ColorPickerComponent_Template_div_dragStart_11_listener() { return ctx.onDragStart(\"hue\"); })(\"dragEnd\", function ColorPickerComponent_Template_div_dragEnd_11_listener() { return ctx.onDragEnd(\"hue\"); });\n        ɵngcc0.ɵɵelement(13, \"div\", 13);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(14, \"div\", 14, 15);\n        ɵngcc0.ɵɵlistener(\"newValue\", function ColorPickerComponent_Template_div_newValue_14_listener($event) { return ctx.onValueChange($event); })(\"dragStart\", function ColorPickerComponent_Template_div_dragStart_14_listener() { return ctx.onDragStart(\"value\"); })(\"dragEnd\", function ColorPickerComponent_Template_div_dragEnd_14_listener() { return ctx.onDragEnd(\"value\"); });\n        ɵngcc0.ɵɵelement(16, \"div\", 13);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(17, \"div\", 16, 17);\n        ɵngcc0.ɵɵlistener(\"newValue\", function ColorPickerComponent_Template_div_newValue_17_listener($event) { return ctx.onAlphaChange($event); })(\"dragStart\", function ColorPickerComponent_Template_div_dragStart_17_listener() { return ctx.onDragStart(\"alpha\"); })(\"dragEnd\", function ColorPickerComponent_Template_div_dragEnd_17_listener() { return ctx.onDragEnd(\"alpha\"); });\n        ɵngcc0.ɵɵelement(19, \"div\", 13);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵtemplate(20, ColorPickerComponent_div_20_Template, 17, 12, \"div\", 18);\n        ɵngcc0.ɵɵtemplate(21, ColorPickerComponent_div_21_Template, 14, 10, \"div\", 19);\n        ɵngcc0.ɵɵtemplate(22, ColorPickerComponent_div_22_Template, 14, 10, \"div\", 20);\n        ɵngcc0.ɵɵtemplate(23, ColorPickerComponent_div_23_Template, 8, 7, \"div\", 21);\n        ɵngcc0.ɵɵtemplate(24, ColorPickerComponent_div_24_Template, 9, 3, \"div\", 22);\n        ɵngcc0.ɵɵtemplate(25, ColorPickerComponent_div_25_Template, 3, 0, \"div\", 23);\n        ɵngcc0.ɵɵtemplate(26, ColorPickerComponent_div_26_Template, 6, 3, \"div\", 24);\n        ɵngcc0.ɵɵtemplate(27, ColorPickerComponent_div_27_Template, 3, 2, \"div\", 25);\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        ɵngcc0.ɵɵstyleProp(\"display\", !ctx.show ? \"none\" : \"block\")(\"visibility\", ctx.hidden ? \"hidden\" : \"visible\")(\"top\", ctx.top, \"px\")(\"left\", ctx.left, \"px\")(\"position\", ctx.position)(\"height\", ctx.cpHeight, \"px\")(\"width\", ctx.cpWidth, \"px\");\n        ɵngcc0.ɵɵclassProp(\"open\", ctx.show);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.cpDialogDisplay == \"popup\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", (ctx.cpColorMode || 1) === 1);\n        ɵngcc0.ɵɵadvance(4);\n        ɵngcc0.ɵɵstyleProp(\"background-color\", ctx.selectedColor);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.cpAddColorButton);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.cpAlphaChannel === \"disabled\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵstyleProp(\"display\", (ctx.cpColorMode || 1) === 1 ? \"block\" : \"none\");\n        ɵngcc0.ɵɵproperty(\"rgX\", 1);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵstyleProp(\"left\", ctx.slider == null ? null : ctx.slider.h, \"px\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵstyleProp(\"display\", (ctx.cpColorMode || 1) === 2 ? \"block\" : \"none\");\n        ɵngcc0.ɵɵproperty(\"rgX\", 1);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵstyleProp(\"right\", ctx.slider == null ? null : ctx.slider.v, \"px\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵstyleProp(\"display\", ctx.cpAlphaChannel === \"disabled\" ? \"none\" : \"block\")(\"background-color\", ctx.alphaSliderColor);\n        ɵngcc0.ɵɵproperty(\"rgX\", 1);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵstyleProp(\"left\", ctx.slider == null ? null : ctx.slider.a, \"px\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", !ctx.cpDisableInput && (ctx.cpColorMode || 1) === 1);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", !ctx.cpDisableInput && (ctx.cpColorMode || 1) === 1);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", !ctx.cpDisableInput && (ctx.cpColorMode || 1) === 1);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", !ctx.cpDisableInput && (ctx.cpColorMode || 1) === 1);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", !ctx.cpDisableInput && (ctx.cpColorMode || 1) === 2);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", !ctx.cpDisableInput && (ctx.cpColorMode || 1) === 1);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", (ctx.cpPresetColors == null ? null : ctx.cpPresetColors.length) || ctx.cpAddColorButton);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.cpOKButton || ctx.cpCancelButton);\n    } }, directives: [ɵngcc1.NgIf, SliderDirective, TextDirective, ɵngcc1.NgForOf], styles: [\".color-picker{position:absolute;z-index:1000;width:230px;height:auto;border:1px solid #777;cursor:default;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;background-color:#fff}.color-picker *{box-sizing:border-box;margin:0;font-size:11px}.color-picker input{width:0;height:26px;min-width:0;font-size:13px;text-align:center;color:#000}.color-picker input:-moz-submit-invalid,.color-picker input:-moz-ui-invalid,.color-picker input:invalid{box-shadow:none}.color-picker input::-webkit-inner-spin-button,.color-picker input::-webkit-outer-spin-button{margin:0;-webkit-appearance:none}.color-picker .arrow{position:absolute;z-index:999999;width:0;height:0;border-style:solid}.color-picker .arrow.arrow-top{left:8px;border-width:10px 5px;border-color:#777 transparent transparent}.color-picker .arrow.arrow-bottom{top:-20px;left:8px;border-width:10px 5px;border-color:transparent transparent #777}.color-picker .arrow.arrow-left-top,.color-picker .arrow.arrow-top-left{right:-21px;bottom:8px;border-width:5px 10px;border-color:transparent transparent transparent #777}.color-picker .arrow.arrow-right-top,.color-picker .arrow.arrow-top-right{bottom:8px;left:-20px;border-width:5px 10px;border-color:transparent #777 transparent transparent}.color-picker .arrow.arrow-bottom-left,.color-picker .arrow.arrow-left,.color-picker .arrow.arrow-left-bottom{top:8px;right:-21px;border-width:5px 10px;border-color:transparent transparent transparent #777}.color-picker .arrow.arrow-bottom-right,.color-picker .arrow.arrow-right,.color-picker .arrow.arrow-right-bottom{top:8px;left:-20px;border-width:5px 10px;border-color:transparent #777 transparent transparent}.color-picker .cursor{position:relative;width:16px;height:16px;border:2px solid #222;border-radius:50%;cursor:default}.color-picker .box{display:flex;padding:4px 8px}.color-picker .left{position:relative;padding:16px 8px}.color-picker .right{flex:1 1 auto;padding:12px 8px}.color-picker .button-area{padding:0 16px 16px;text-align:right}.color-picker .button-area button{margin-left:8px}.color-picker .preset-area{padding:4px 15px}.color-picker .preset-area .preset-label{overflow:hidden;width:100%;padding:4px;font-size:11px;white-space:nowrap;text-align:left;text-overflow:ellipsis;color:#555}.color-picker .preset-area .preset-color{position:relative;display:inline-block;width:18px;height:18px;margin:4px 6px 8px;border:1px solid #a9a9a9;border-radius:25%;cursor:pointer}.color-picker .preset-area .preset-empty-message{min-height:18px;margin-top:4px;margin-bottom:8px;font-style:italic;text-align:center}.color-picker .hex-text{width:100%;padding:4px 8px;font-size:11px}.color-picker .hex-text .box{padding:0 24px 8px 8px}.color-picker .hex-text .box div{float:left;flex:1 1 auto;text-align:center;color:#555;clear:left}.color-picker .hex-text .box input{flex:1 1 auto;padding:1px;border:1px solid #a9a9a9}.color-picker .hex-alpha .box div:first-child,.color-picker .hex-alpha .box input:first-child{flex-grow:3;margin-right:8px}.color-picker .cmyk-text,.color-picker .hsla-text,.color-picker .rgba-text,.color-picker .value-text{width:100%;padding:4px 8px;font-size:11px}.color-picker .cmyk-text .box,.color-picker .hsla-text .box,.color-picker .rgba-text .box{padding:0 24px 8px 8px}.color-picker .value-text .box{padding:0 8px 8px}.color-picker .cmyk-text .box div,.color-picker .hsla-text .box div,.color-picker .rgba-text .box div,.color-picker .value-text .box div{flex:1 1 auto;margin-right:8px;text-align:center;color:#555}.color-picker .cmyk-text .box div:last-child,.color-picker .hsla-text .box div:last-child,.color-picker .rgba-text .box div:last-child,.color-picker .value-text .box div:last-child{margin-right:0}.color-picker .cmyk-text .box input,.color-picker .hsla-text .box input,.color-picker .rgba-text .box input,.color-picker .value-text .box input{float:left;flex:1;padding:1px;margin:0 8px 0 0;border:1px solid #a9a9a9}.color-picker .cmyk-text .box input:last-child,.color-picker .hsla-text .box input:last-child,.color-picker .rgba-text .box input:last-child,.color-picker .value-text .box input:last-child{margin-right:0}.color-picker .hue-alpha{align-items:center;margin-bottom:3px}.color-picker .hue{direction:ltr;width:100%;height:16px;margin-bottom:16px;border:none;cursor:pointer;background-size:100% 100%;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJYAAAAQCAYAAAD06IYnAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH4AIWDwkUFWbCCAAAAFxJREFUaN7t0kEKg0AQAME2x83/n2qu5qCgD1iDhCoYdpnbQC9bbY1qVO/jvc6k3ad91s7/7F1/csgPrujuQ17BDYSFsBAWwgJhISyEBcJCWAgLhIWwEBYIi2f7Ar/1TCgFH2X9AAAAAElFTkSuQmCC)}.color-picker .value{direction:rtl;width:100%;height:16px;margin-bottom:16px;border:none;cursor:pointer;background-size:100% 100%;background-image:url(data:image/png;base64,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)}.color-picker .alpha{direction:ltr;width:100%;height:16px;border:none;cursor:pointer;background-size:100% 100%;background-image:url(data:image/png;base64,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)}.color-picker .type-policy{position:absolute;top:218px;right:12px;width:16px;height:24px;background-size:8px 16px;background-image:url(data:image/png;base64,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);background-repeat:no-repeat;background-position:center}.color-picker .type-policy .type-policy-arrow{display:block;width:100%;height:50%}.color-picker .selected-color{position:absolute;top:16px;left:8px;width:40px;height:40px;border:1px solid #a9a9a9;border-radius:50%}.color-picker .selected-color-background{width:40px;height:40px;border-radius:50%;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAAh0lEQVRYR+2W0QlAMQgD60zdfwOdqa8TmI/wQMr5K0I5bZLIzLOa2nt37VVVbd+dDx5obgCC3KBLwJ2ff4PnVidkf+ucIhw80HQaCLo3DMH3CRK3iFsmAWVl6hPNDwt8EvNE5q+YuEXcMgkonVM6SdyCoEvAnZ8v1Hjx817MilmxSUB5rdLJDycZgUAZUch/AAAAAElFTkSuQmCC)}.color-picker .saturation-lightness{direction:ltr;width:100%;height:130px;border:none;cursor:pointer;touch-action:manipulation;background-size:100% 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)}.color-picker .cp-add-color-button-class{position:absolute;display:inline;padding:0;margin:3px -3px;border:0;cursor:pointer;background:0 0}.color-picker .cp-add-color-button-class:hover{text-decoration:underline}.color-picker .cp-add-color-button-class:disabled{cursor:not-allowed;color:#999}.color-picker .cp-add-color-button-class:disabled:hover{text-decoration:none}.color-picker .cp-remove-color-button-class{position:absolute;top:-5px;right:-5px;display:block;width:10px;height:10px;border-radius:50%;cursor:pointer;text-align:center;background:#fff;box-shadow:1px 1px 5px #333}.color-picker .cp-remove-color-button-class::before{content:'x';position:relative;bottom:3.5px;display:inline-block;font-size:10px}\"], encapsulation: 2 });\nColorPickerComponent.ctorParameters = () => [\n    { type: ElementRef },\n    { type: ChangeDetectorRef },\n    { type: ColorPickerService }\n];\n__decorate([\n    ViewChild('dialogPopup', { static: true })\n], ColorPickerComponent.prototype, \"dialogElement\", void 0);\n__decorate([\n    ViewChild('hueSlider', { static: true })\n], ColorPickerComponent.prototype, \"hueSlider\", void 0);\n__decorate([\n    ViewChild('alphaSlider', { static: true })\n], ColorPickerComponent.prototype, \"alphaSlider\", void 0);\n__decorate([\n    HostListener('document:keyup.esc', ['$event'])\n], ColorPickerComponent.prototype, \"handleEsc\", null);\n__decorate([\n    HostListener('document:keyup.enter', ['$event'])\n], ColorPickerComponent.prototype, \"handleEnter\", null);\n\nlet ColorPickerDirective = class ColorPickerDirective {\n    constructor(injector, cfr, appRef, vcRef, elRef, _service) {\n        this.injector = injector;\n        this.cfr = cfr;\n        this.appRef = appRef;\n        this.vcRef = vcRef;\n        this.elRef = elRef;\n        this._service = _service;\n        this.dialogCreated = false;\n        this.ignoreChanges = false;\n        this.viewAttachedToAppRef = false;\n        this.cpWidth = '230px';\n        this.cpHeight = 'auto';\n        this.cpToggle = false;\n        this.cpDisabled = false;\n        this.cpIgnoredElements = [];\n        this.cpFallbackColor = '';\n        this.cpColorMode = 'color';\n        this.cpCmykEnabled = false;\n        this.cpOutputFormat = 'auto';\n        this.cpAlphaChannel = 'enabled';\n        this.cpDisableInput = false;\n        this.cpDialogDisplay = 'popup';\n        this.cpSaveClickOutside = true;\n        this.cpCloseClickOutside = true;\n        this.cpUseRootViewContainer = false;\n        this.cpPosition = 'auto';\n        this.cpPositionOffset = '0%';\n        this.cpPositionRelativeToArrow = false;\n        this.cpOKButton = false;\n        this.cpOKButtonText = 'OK';\n        this.cpOKButtonClass = 'cp-ok-button-class';\n        this.cpCancelButton = false;\n        this.cpCancelButtonText = 'Cancel';\n        this.cpCancelButtonClass = 'cp-cancel-button-class';\n        this.cpPresetLabel = 'Preset colors';\n        this.cpPresetColorsClass = 'cp-preset-colors-class';\n        this.cpMaxPresetColorsLength = 6;\n        this.cpPresetEmptyMessage = 'No colors added';\n        this.cpPresetEmptyMessageClass = 'preset-empty-message';\n        this.cpAddColorButton = false;\n        this.cpAddColorButtonText = 'Add color';\n        this.cpAddColorButtonClass = 'cp-add-color-button-class';\n        this.cpRemoveColorButtonClass = 'cp-remove-color-button-class';\n        this.cpInputChange = new EventEmitter(true);\n        this.cpToggleChange = new EventEmitter(true);\n        this.cpSliderChange = new EventEmitter(true);\n        this.cpSliderDragEnd = new EventEmitter(true);\n        this.cpSliderDragStart = new EventEmitter(true);\n        this.colorPickerOpen = new EventEmitter(true);\n        this.colorPickerClose = new EventEmitter(true);\n        this.colorPickerCancel = new EventEmitter(true);\n        this.colorPickerSelect = new EventEmitter(true);\n        this.colorPickerChange = new EventEmitter(false);\n        this.cpCmykColorChange = new EventEmitter(true);\n        this.cpPresetColorsChange = new EventEmitter(true);\n    }\n    handleClick() {\n        this.inputFocus();\n    }\n    handleFocus() {\n        this.inputFocus();\n    }\n    handleInput(event) {\n        this.inputChange(event);\n    }\n    ngOnDestroy() {\n        if (this.cmpRef != null) {\n            if (this.viewAttachedToAppRef) {\n                this.appRef.detachView(this.cmpRef.hostView);\n            }\n            this.cmpRef.destroy();\n            this.cmpRef = null;\n            this.dialog = null;\n        }\n    }\n    ngOnChanges(changes) {\n        if (changes.cpToggle && !this.cpDisabled) {\n            if (changes.cpToggle.currentValue) {\n                this.openDialog();\n            }\n            else if (!changes.cpToggle.currentValue) {\n                this.closeDialog();\n            }\n        }\n        if (changes.colorPicker) {\n            if (this.dialog && !this.ignoreChanges) {\n                if (this.cpDialogDisplay === 'inline') {\n                    this.dialog.setInitialColor(changes.colorPicker.currentValue);\n                }\n                this.dialog.setColorFromString(changes.colorPicker.currentValue, false);\n                if (this.cpUseRootViewContainer && this.cpDialogDisplay !== 'inline') {\n                    this.cmpRef.changeDetectorRef.detectChanges();\n                }\n            }\n            this.ignoreChanges = false;\n        }\n        if (changes.cpPresetLabel || changes.cpPresetColors) {\n            if (this.dialog) {\n                this.dialog.setPresetConfig(this.cpPresetLabel, this.cpPresetColors);\n            }\n        }\n    }\n    openDialog() {\n        if (!this.dialogCreated) {\n            let vcRef = this.vcRef;\n            this.dialogCreated = true;\n            this.viewAttachedToAppRef = false;\n            if (this.cpUseRootViewContainer && this.cpDialogDisplay !== 'inline') {\n                const classOfRootComponent = this.appRef.componentTypes[0];\n                const appInstance = this.injector.get(classOfRootComponent, Injector.NULL);\n                if (appInstance !== Injector.NULL) {\n                    vcRef = appInstance.vcRef || appInstance.viewContainerRef || this.vcRef;\n                    if (vcRef === this.vcRef) {\n                        console.warn('You are using cpUseRootViewContainer, ' +\n                            'but the root component is not exposing viewContainerRef!' +\n                            'Please expose it by adding \\'public vcRef: ViewContainerRef\\' to the constructor.');\n                    }\n                }\n                else {\n                    this.viewAttachedToAppRef = true;\n                }\n            }\n            const compFactory = this.cfr.resolveComponentFactory(ColorPickerComponent);\n            if (this.viewAttachedToAppRef) {\n                this.cmpRef = compFactory.create(this.injector);\n                this.appRef.attachView(this.cmpRef.hostView);\n                document.body.appendChild(this.cmpRef.hostView.rootNodes[0]);\n            }\n            else {\n                const injector = ReflectiveInjector.fromResolvedProviders([], vcRef.parentInjector);\n                this.cmpRef = vcRef.createComponent(compFactory, 0, injector, []);\n            }\n            this.cmpRef.instance.setupDialog(this, this.elRef, this.colorPicker, this.cpWidth, this.cpHeight, this.cpDialogDisplay, this.cpFallbackColor, this.cpColorMode, this.cpCmykEnabled, this.cpAlphaChannel, this.cpOutputFormat, this.cpDisableInput, this.cpIgnoredElements, this.cpSaveClickOutside, this.cpCloseClickOutside, this.cpUseRootViewContainer, this.cpPosition, this.cpPositionOffset, this.cpPositionRelativeToArrow, this.cpPresetLabel, this.cpPresetColors, this.cpPresetColorsClass, this.cpMaxPresetColorsLength, this.cpPresetEmptyMessage, this.cpPresetEmptyMessageClass, this.cpOKButton, this.cpOKButtonClass, this.cpOKButtonText, this.cpCancelButton, this.cpCancelButtonClass, this.cpCancelButtonText, this.cpAddColorButton, this.cpAddColorButtonClass, this.cpAddColorButtonText, this.cpRemoveColorButtonClass);\n            this.dialog = this.cmpRef.instance;\n            if (this.vcRef !== vcRef) {\n                this.cmpRef.changeDetectorRef.detectChanges();\n            }\n        }\n        else if (this.dialog) {\n            this.dialog.openDialog(this.colorPicker);\n        }\n    }\n    closeDialog() {\n        if (this.dialog && this.cpDialogDisplay === 'popup') {\n            this.dialog.closeDialog();\n        }\n    }\n    cmykChanged(value) {\n        this.cpCmykColorChange.emit(value);\n    }\n    stateChanged(state) {\n        this.cpToggleChange.emit(state);\n        if (state) {\n            this.colorPickerOpen.emit(this.colorPicker);\n        }\n        else {\n            this.colorPickerClose.emit(this.colorPicker);\n        }\n    }\n    colorChanged(value, ignore = true) {\n        this.ignoreChanges = ignore;\n        this.colorPickerChange.emit(value);\n    }\n    colorSelected(value) {\n        this.colorPickerSelect.emit(value);\n    }\n    colorCanceled() {\n        this.colorPickerCancel.emit();\n    }\n    inputFocus() {\n        const element = this.elRef.nativeElement;\n        const ignored = this.cpIgnoredElements.filter((item) => item === element);\n        if (!this.cpDisabled && !ignored.length) {\n            if (typeof document !== 'undefined' && element === document.activeElement) {\n                this.openDialog();\n            }\n            else if (!this.dialog || !this.dialog.show) {\n                this.openDialog();\n            }\n            else {\n                this.closeDialog();\n            }\n        }\n    }\n    inputChange(event) {\n        if (this.dialog) {\n            this.dialog.setColorFromString(event.target.value, true);\n        }\n        else {\n            this.colorPicker = event.target.value;\n            this.colorPickerChange.emit(this.colorPicker);\n        }\n    }\n    inputChanged(event) {\n        this.cpInputChange.emit(event);\n    }\n    sliderChanged(event) {\n        this.cpSliderChange.emit(event);\n    }\n    sliderDragEnd(event) {\n        this.cpSliderDragEnd.emit(event);\n    }\n    sliderDragStart(event) {\n        this.cpSliderDragStart.emit(event);\n    }\n    presetColorsChanged(value) {\n        this.cpPresetColorsChange.emit(value);\n    }\n};\nColorPickerDirective.ɵfac = function ColorPickerDirective_Factory(t) { return new (t || ColorPickerDirective)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.Injector), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ComponentFactoryResolver), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ApplicationRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ViewContainerRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ColorPickerService)); };\nColorPickerDirective.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: ColorPickerDirective, selectors: [[\"\", \"colorPicker\", \"\"]], hostBindings: function ColorPickerDirective_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"click\", function ColorPickerDirective_click_HostBindingHandler() { return ctx.handleClick(); })(\"focus\", function ColorPickerDirective_focus_HostBindingHandler() { return ctx.handleFocus(); })(\"input\", function ColorPickerDirective_input_HostBindingHandler($event) { return ctx.handleInput($event); });\n    } }, inputs: { cpWidth: \"cpWidth\", cpHeight: \"cpHeight\", cpToggle: \"cpToggle\", cpDisabled: \"cpDisabled\", cpIgnoredElements: \"cpIgnoredElements\", cpFallbackColor: \"cpFallbackColor\", cpColorMode: \"cpColorMode\", cpCmykEnabled: \"cpCmykEnabled\", cpOutputFormat: \"cpOutputFormat\", cpAlphaChannel: \"cpAlphaChannel\", cpDisableInput: \"cpDisableInput\", cpDialogDisplay: \"cpDialogDisplay\", cpSaveClickOutside: \"cpSaveClickOutside\", cpCloseClickOutside: \"cpCloseClickOutside\", cpUseRootViewContainer: \"cpUseRootViewContainer\", cpPosition: \"cpPosition\", cpPositionOffset: \"cpPositionOffset\", cpPositionRelativeToArrow: \"cpPositionRelativeToArrow\", cpOKButton: \"cpOKButton\", cpOKButtonText: \"cpOKButtonText\", cpOKButtonClass: \"cpOKButtonClass\", cpCancelButton: \"cpCancelButton\", cpCancelButtonText: \"cpCancelButtonText\", cpCancelButtonClass: \"cpCancelButtonClass\", cpPresetLabel: \"cpPresetLabel\", cpPresetColorsClass: \"cpPresetColorsClass\", cpMaxPresetColorsLength: \"cpMaxPresetColorsLength\", cpPresetEmptyMessage: \"cpPresetEmptyMessage\", cpPresetEmptyMessageClass: \"cpPresetEmptyMessageClass\", cpAddColorButton: \"cpAddColorButton\", cpAddColorButtonText: \"cpAddColorButtonText\", cpAddColorButtonClass: \"cpAddColorButtonClass\", cpRemoveColorButtonClass: \"cpRemoveColorButtonClass\", colorPicker: \"colorPicker\", cpPresetColors: \"cpPresetColors\" }, outputs: { cpInputChange: \"cpInputChange\", cpToggleChange: \"cpToggleChange\", cpSliderChange: \"cpSliderChange\", cpSliderDragEnd: \"cpSliderDragEnd\", cpSliderDragStart: \"cpSliderDragStart\", colorPickerOpen: \"colorPickerOpen\", colorPickerClose: \"colorPickerClose\", colorPickerCancel: \"colorPickerCancel\", colorPickerSelect: \"colorPickerSelect\", colorPickerChange: \"colorPickerChange\", cpCmykColorChange: \"cpCmykColorChange\", cpPresetColorsChange: \"cpPresetColorsChange\" }, exportAs: [\"ngxColorPicker\"], features: [ɵngcc0.ɵɵNgOnChangesFeature] });\nColorPickerDirective.ctorParameters = () => [\n    { type: Injector },\n    { type: ComponentFactoryResolver },\n    { type: ApplicationRef },\n    { type: ViewContainerRef },\n    { type: ElementRef },\n    { type: ColorPickerService }\n];\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"colorPicker\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpWidth\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpHeight\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpToggle\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpDisabled\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpIgnoredElements\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpFallbackColor\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpColorMode\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpCmykEnabled\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpOutputFormat\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpAlphaChannel\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpDisableInput\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpDialogDisplay\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpSaveClickOutside\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpCloseClickOutside\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpUseRootViewContainer\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPosition\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPositionOffset\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPositionRelativeToArrow\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpOKButton\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpOKButtonText\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpOKButtonClass\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpCancelButton\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpCancelButtonText\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpCancelButtonClass\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPresetLabel\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPresetColors\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPresetColorsClass\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpMaxPresetColorsLength\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPresetEmptyMessage\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpPresetEmptyMessageClass\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpAddColorButton\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpAddColorButtonText\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpAddColorButtonClass\", void 0);\n__decorate([\n    Input()\n], ColorPickerDirective.prototype, \"cpRemoveColorButtonClass\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"cpInputChange\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"cpToggleChange\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"cpSliderChange\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"cpSliderDragEnd\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"cpSliderDragStart\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"colorPickerOpen\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"colorPickerClose\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"colorPickerCancel\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"colorPickerSelect\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"colorPickerChange\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"cpCmykColorChange\", void 0);\n__decorate([\n    Output()\n], ColorPickerDirective.prototype, \"cpPresetColorsChange\", void 0);\n__decorate([\n    HostListener('click')\n], ColorPickerDirective.prototype, \"handleClick\", null);\n__decorate([\n    HostListener('focus')\n], ColorPickerDirective.prototype, \"handleFocus\", null);\n__decorate([\n    HostListener('input', ['$event'])\n], ColorPickerDirective.prototype, \"handleInput\", null);\n\nlet ColorPickerModule = class ColorPickerModule {\n};\nColorPickerModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: ColorPickerModule });\nColorPickerModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function ColorPickerModule_Factory(t) { return new (t || ColorPickerModule)(); }, providers: [ColorPickerService], imports: [[CommonModule]] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(TextDirective, [{\n        type: Directive,\n        args: [{\n                selector: '[text]'\n            }]\n    }], function () { return []; }, { newValue: [{\n            type: Output\n        }], inputChange: [{\n            type: HostListener,\n            args: ['input', ['$event']]\n        }], rg: [{\n            type: Input\n        }], text: [{\n            type: Input\n        }] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(SliderDirective, [{\n        type: Directive,\n        args: [{\n                selector: '[slider]'\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }]; }, { dragEnd: [{\n            type: Output\n        }], dragStart: [{\n            type: Output\n        }], newValue: [{\n            type: Output\n        }], mouseDown: [{\n            type: HostListener,\n            args: ['mousedown', ['$event']]\n        }], touchStart: [{\n            type: HostListener,\n            args: ['touchstart', ['$event']]\n        }], rgX: [{\n            type: Input\n        }], rgY: [{\n            type: Input\n        }], slider: [{\n            type: Input\n        }] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ColorPickerService, [{\n        type: Injectable\n    }], function () { return []; }, null); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ColorPickerComponent, [{\n        type: Component,\n        args: [{\n                selector: 'color-picker',\n                template: \"<div #dialogPopup class=\\\"color-picker\\\" [class.open]=\\\"show\\\" [style.display]=\\\"!show ? 'none' : 'block'\\\" [style.visibility]=\\\"hidden ? 'hidden' : 'visible'\\\" [style.top.px]=\\\"top\\\" [style.left.px]=\\\"left\\\" [style.position]=\\\"position\\\" [style.height.px]=\\\"cpHeight\\\" [style.width.px]=\\\"cpWidth\\\" (click)=\\\"$event.stopPropagation()\\\">\\n  <div *ngIf=\\\"cpDialogDisplay=='popup'\\\" class=\\\"arrow arrow-{{cpUsePosition}}\\\" [style.top.px]=\\\"arrowTop\\\"></div>\\n\\n  <div *ngIf=\\\"(cpColorMode ||\\u00A01) === 1\\\" class=\\\"saturation-lightness\\\" [slider] [rgX]=\\\"1\\\" [rgY]=\\\"1\\\" [style.background-color]=\\\"hueSliderColor\\\" (newValue)=\\\"onColorChange($event)\\\" (dragStart)=\\\"onDragStart('saturation-lightness')\\\" (dragEnd)=\\\"onDragEnd('saturation-lightness')\\\">\\n    <div class=\\\"cursor\\\" [style.top.px]=\\\"slider?.v\\\" [style.left.px]=\\\"slider?.s\\\"></div>\\n  </div>\\n\\n  <div class=\\\"hue-alpha box\\\">\\n    <div class=\\\"left\\\">\\n      <div class=\\\"selected-color-background\\\"></div>\\n\\n      <div class=\\\"selected-color\\\" [style.background-color]=\\\"selectedColor\\\"></div>\\n\\n      <button *ngIf=\\\"cpAddColorButton\\\" type=\\\"button\\\" class=\\\"{{cpAddColorButtonClass}}\\\" [disabled]=\\\"cpPresetColors && cpPresetColors.length >= cpMaxPresetColorsLength\\\" (click)=\\\"onAddPresetColor($event, selectedColor)\\\">\\n        {{cpAddColorButtonText}}\\n      </button>\\n    </div>\\n\\n    <div class=\\\"right\\\">\\n      <div *ngIf=\\\"cpAlphaChannel==='disabled'\\\" style=\\\"height: 16px;\\\"></div>\\n\\n      <div #hueSlider class=\\\"hue\\\" [slider] [rgX]=\\\"1\\\" [style.display]=\\\"(cpColorMode ||\\u00A01) === 1 ? 'block' : 'none'\\\" (newValue)=\\\"onHueChange($event)\\\" (dragStart)=\\\"onDragStart('hue')\\\" (dragEnd)=\\\"onDragEnd('hue')\\\">\\n        <div class=\\\"cursor\\\" [style.left.px]=\\\"slider?.h\\\"></div>\\n      </div>\\n\\n      <div #valueSlider class=\\\"value\\\" [slider] [rgX]=\\\"1\\\" [style.display]=\\\"(cpColorMode ||\\u00A01) === 2 ? 'block': 'none'\\\" (newValue)=\\\"onValueChange($event)\\\" (dragStart)=\\\"onDragStart('value')\\\" (dragEnd)=\\\"onDragEnd('value')\\\">\\n        <div class=\\\"cursor\\\" [style.right.px]=\\\"slider?.v\\\"></div>\\n      </div>\\n\\n      <div #alphaSlider class=\\\"alpha\\\" [slider] [rgX]=\\\"1\\\" [style.display]=\\\"cpAlphaChannel === 'disabled' ? 'none' : 'block'\\\" [style.background-color]=\\\"alphaSliderColor\\\" (newValue)=\\\"onAlphaChange($event)\\\" (dragStart)=\\\"onDragStart('alpha')\\\" (dragEnd)=\\\"onDragEnd('alpha')\\\">\\n        <div class=\\\"cursor\\\" [style.left.px]=\\\"slider?.a\\\"></div>\\n      </div>\\n    </div>\\n  </div>\\n\\n  <div *ngIf=\\\"!cpDisableInput && (cpColorMode ||\\u00A01) === 1\\\" class=\\\"cmyk-text\\\" [style.display]=\\\"format !== 3 ? 'none' : 'block'\\\">\\n    <div class=\\\"box\\\">\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"100\\\" [text] [rg]=\\\"100\\\" [value]=\\\"cmykText?.c\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onCyanInput($event)\\\" />\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"100\\\" [text] [rg]=\\\"100\\\" [value]=\\\"cmykText?.m\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onMagentaInput($event)\\\" />\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"100\\\" [text] [rg]=\\\"100\\\" [value]=\\\"cmykText?.y\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onYellowInput($event)\\\" />\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"100\\\" [text] [rg]=\\\"100\\\" [value]=\\\"cmykText?.k\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onBlackInput($event)\\\" />\\n      <input *ngIf=\\\"cpAlphaChannel!=='disabled'\\\" type=\\\"number\\\" pattern=\\\"[0-9]+([\\\\.,][0-9]{1,2})?\\\" min=\\\"0\\\" max=\\\"1\\\" step=\\\"0.1\\\" [text] [rg]=\\\"1\\\" [value]=\\\"cmykText?.a\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onAlphaInput($event)\\\" />\\n    </div>\\n\\n     <div class=\\\"box\\\">\\n      <div>C</div><div>M</div><div>Y</div><div>K</div><div *ngIf=\\\"cpAlphaChannel!=='disabled'\\\" >A</div>\\n    </div>\\n  </div>\\n\\n  <div *ngIf=\\\"!cpDisableInput && (cpColorMode ||\\u00A01) === 1 \\\" class=\\\"hsla-text\\\" [style.display]=\\\"format !== 2 ? 'none' : 'block'\\\">\\n    <div class=\\\"box\\\">\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"360\\\" [text] [rg]=\\\"360\\\" [value]=\\\"hslaText?.h\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onHueInput($event)\\\" />\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"100\\\" [text] [rg]=\\\"100\\\" [value]=\\\"hslaText?.s\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onSaturationInput($event)\\\" />\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"100\\\" [text] [rg]=\\\"100\\\" [value]=\\\"hslaText?.l\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onLightnessInput($event)\\\" />\\n      <input *ngIf=\\\"cpAlphaChannel!=='disabled'\\\" type=\\\"number\\\" pattern=\\\"[0-9]+([\\\\.,][0-9]{1,2})?\\\" min=\\\"0\\\" max=\\\"1\\\" step=\\\"0.1\\\" [text] [rg]=\\\"1\\\" [value]=\\\"hslaText?.a\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onAlphaInput($event)\\\" />\\n    </div>\\n\\n    <div class=\\\"box\\\">\\n      <div>H</div><div>S</div><div>L</div><div *ngIf=\\\"cpAlphaChannel!=='disabled'\\\">A</div>\\n    </div>\\n  </div>\\n\\n  <div *ngIf=\\\"!cpDisableInput && (cpColorMode ||\\u00A01) === 1 \\\" [style.display]=\\\"format !== 1 ? 'none' : 'block'\\\" class=\\\"rgba-text\\\">\\n    <div class=\\\"box\\\">\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"255\\\" [text] [rg]=\\\"255\\\" [value]=\\\"rgbaText?.r\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onRedInput($event)\\\" />\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"255\\\" [text] [rg]=\\\"255\\\" [value]=\\\"rgbaText?.g\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onGreenInput($event)\\\" />\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"255\\\" [text] [rg]=\\\"255\\\" [value]=\\\"rgbaText?.b\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onBlueInput($event)\\\" />\\n      <input *ngIf=\\\"cpAlphaChannel!=='disabled'\\\" type=\\\"number\\\" pattern=\\\"[0-9]+([\\\\.,][0-9]{1,2})?\\\" min=\\\"0\\\" max=\\\"1\\\" step=\\\"0.1\\\" [text] [rg]=\\\"1\\\" [value]=\\\"rgbaText?.a\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onAlphaInput($event)\\\" />\\n    </div>\\n\\n    <div class=\\\"box\\\">\\n      <div>R</div><div>G</div><div>B</div><div *ngIf=\\\"cpAlphaChannel!=='disabled'\\\" >A</div>\\n    </div>\\n  </div>\\n\\n  <div *ngIf=\\\"!cpDisableInput && (cpColorMode ||\\u00A01) === 1\\\" class=\\\"hex-text\\\" [class.hex-alpha]=\\\"cpAlphaChannel==='forced'\\\"\\n    [style.display]=\\\"format !== 0 ? 'none' : 'block'\\\">\\n    <div class=\\\"box\\\">\\n      <input [text] [value]=\\\"hexText\\\" (blur)=\\\"onHexInput(null)\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onHexInput($event)\\\"/>\\n      <input *ngIf=\\\"cpAlphaChannel==='forced'\\\" type=\\\"number\\\" pattern=\\\"[0-9]+([\\\\.,][0-9]{1,2})?\\\" min=\\\"0\\\" max=\\\"1\\\" step=\\\"0.1\\\" [text] [rg]=\\\"1\\\" [value]=\\\"hexAlpha\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onAlphaInput($event)\\\"/>\\n    </div>\\n\\n    <div class=\\\"box\\\">\\n      <div>Hex</div>\\n      <div *ngIf=\\\"cpAlphaChannel==='forced'\\\">A</div>\\n    </div>\\n  </div>\\n\\n  <div *ngIf=\\\"!cpDisableInput && (cpColorMode ||\\u00A01) === 2\\\" class=\\\"value-text\\\">\\n    <div class=\\\"box\\\">\\n      <input type=\\\"number\\\" pattern=\\\"[0-9]*\\\" min=\\\"0\\\" max=\\\"100\\\" [text] [rg]=\\\"100\\\" [value]=\\\"hslaText?.l\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onValueInput($event)\\\" />\\n      <input *ngIf=\\\"cpAlphaChannel!=='disabled'\\\" type=\\\"number\\\" pattern=\\\"[0-9]+([\\\\.,][0-9]{1,2})?\\\" min=\\\"0\\\" max=\\\"1\\\" step=\\\"0.1\\\"  [text] [rg]=\\\"1\\\" [value]=\\\"hslaText?.a\\\" (keyup.enter)=\\\"onAcceptColor($event)\\\" (newValue)=\\\"onAlphaInput($event)\\\" />\\n    </div>\\n\\n    <div class=\\\"box\\\">\\n      <div>V</div><div>A</div>\\n    </div>\\n  </div>\\n\\n  <div *ngIf=\\\"!cpDisableInput && (cpColorMode ||\\u00A01) === 1\\\" class=\\\"type-policy\\\">\\n    <span class=\\\"type-policy-arrow\\\" (click)=\\\"onFormatToggle(-1)\\\"></span>\\n    <span class=\\\"type-policy-arrow\\\" (click)=\\\"onFormatToggle(1)\\\"></span>\\n  </div>\\n\\n  <div *ngIf=\\\"cpPresetColors?.length || cpAddColorButton\\\" class=\\\"preset-area\\\">\\n    <hr>\\n\\n    <div class=\\\"preset-label\\\">{{cpPresetLabel}}</div>\\n\\n    <div *ngIf=\\\"cpPresetColors?.length\\\" class=\\\"{{cpPresetColorsClass}}\\\">\\n      <div *ngFor=\\\"let color of cpPresetColors\\\" class=\\\"preset-color\\\" [style.backgroundColor]=\\\"color\\\" (click)=\\\"setColorFromString(color)\\\">\\n        <span *ngIf=\\\"cpAddColorButton\\\" class=\\\"{{cpRemoveColorButtonClass}}\\\" (click)=\\\"onRemovePresetColor($event, color)\\\"></span>\\n      </div>\\n    </div>\\n\\n    <div *ngIf=\\\"!cpPresetColors?.length && cpAddColorButton\\\" class=\\\"{{cpPresetEmptyMessageClass}}\\\">{{cpPresetEmptyMessage}}</div>\\n  </div>\\n\\n  <div *ngIf=\\\"cpOKButton || cpCancelButton\\\" class=\\\"button-area\\\">\\n    <button *ngIf=\\\"cpCancelButton\\\" type=\\\"button\\\" class=\\\"{{cpCancelButtonClass}}\\\" (click)=\\\"onCancelColor($event)\\\">{{cpCancelButtonText}}</button>\\n\\n    <button *ngIf=\\\"cpOKButton\\\" type=\\\"button\\\" class=\\\"{{cpOKButtonClass}}\\\" (click)=\\\"onAcceptColor($event)\\\">{{cpOKButtonText}}</button>\\n  </div>\\n</div>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                styles: [\".color-picker{position:absolute;z-index:1000;width:230px;height:auto;border:1px solid #777;cursor:default;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;background-color:#fff}.color-picker *{box-sizing:border-box;margin:0;font-size:11px}.color-picker input{width:0;height:26px;min-width:0;font-size:13px;text-align:center;color:#000}.color-picker input:-moz-submit-invalid,.color-picker input:-moz-ui-invalid,.color-picker input:invalid{box-shadow:none}.color-picker input::-webkit-inner-spin-button,.color-picker input::-webkit-outer-spin-button{margin:0;-webkit-appearance:none}.color-picker .arrow{position:absolute;z-index:999999;width:0;height:0;border-style:solid}.color-picker .arrow.arrow-top{left:8px;border-width:10px 5px;border-color:#777 transparent transparent}.color-picker .arrow.arrow-bottom{top:-20px;left:8px;border-width:10px 5px;border-color:transparent transparent #777}.color-picker .arrow.arrow-left-top,.color-picker .arrow.arrow-top-left{right:-21px;bottom:8px;border-width:5px 10px;border-color:transparent transparent transparent #777}.color-picker .arrow.arrow-right-top,.color-picker .arrow.arrow-top-right{bottom:8px;left:-20px;border-width:5px 10px;border-color:transparent #777 transparent transparent}.color-picker .arrow.arrow-bottom-left,.color-picker .arrow.arrow-left,.color-picker .arrow.arrow-left-bottom{top:8px;right:-21px;border-width:5px 10px;border-color:transparent transparent transparent #777}.color-picker .arrow.arrow-bottom-right,.color-picker .arrow.arrow-right,.color-picker .arrow.arrow-right-bottom{top:8px;left:-20px;border-width:5px 10px;border-color:transparent #777 transparent transparent}.color-picker .cursor{position:relative;width:16px;height:16px;border:2px solid #222;border-radius:50%;cursor:default}.color-picker .box{display:flex;padding:4px 8px}.color-picker .left{position:relative;padding:16px 8px}.color-picker .right{flex:1 1 auto;padding:12px 8px}.color-picker .button-area{padding:0 16px 16px;text-align:right}.color-picker .button-area button{margin-left:8px}.color-picker .preset-area{padding:4px 15px}.color-picker .preset-area .preset-label{overflow:hidden;width:100%;padding:4px;font-size:11px;white-space:nowrap;text-align:left;text-overflow:ellipsis;color:#555}.color-picker .preset-area .preset-color{position:relative;display:inline-block;width:18px;height:18px;margin:4px 6px 8px;border:1px solid #a9a9a9;border-radius:25%;cursor:pointer}.color-picker .preset-area .preset-empty-message{min-height:18px;margin-top:4px;margin-bottom:8px;font-style:italic;text-align:center}.color-picker .hex-text{width:100%;padding:4px 8px;font-size:11px}.color-picker .hex-text .box{padding:0 24px 8px 8px}.color-picker .hex-text .box div{float:left;flex:1 1 auto;text-align:center;color:#555;clear:left}.color-picker .hex-text .box input{flex:1 1 auto;padding:1px;border:1px solid #a9a9a9}.color-picker .hex-alpha .box div:first-child,.color-picker .hex-alpha .box input:first-child{flex-grow:3;margin-right:8px}.color-picker .cmyk-text,.color-picker .hsla-text,.color-picker .rgba-text,.color-picker .value-text{width:100%;padding:4px 8px;font-size:11px}.color-picker .cmyk-text .box,.color-picker .hsla-text .box,.color-picker .rgba-text .box{padding:0 24px 8px 8px}.color-picker .value-text .box{padding:0 8px 8px}.color-picker .cmyk-text .box div,.color-picker .hsla-text .box div,.color-picker .rgba-text .box div,.color-picker .value-text .box div{flex:1 1 auto;margin-right:8px;text-align:center;color:#555}.color-picker .cmyk-text .box div:last-child,.color-picker .hsla-text .box div:last-child,.color-picker .rgba-text .box div:last-child,.color-picker .value-text .box div:last-child{margin-right:0}.color-picker .cmyk-text .box input,.color-picker .hsla-text .box input,.color-picker .rgba-text .box input,.color-picker .value-text .box input{float:left;flex:1;padding:1px;margin:0 8px 0 0;border:1px solid #a9a9a9}.color-picker .cmyk-text .box input:last-child,.color-picker .hsla-text .box input:last-child,.color-picker .rgba-text .box input:last-child,.color-picker .value-text .box input:last-child{margin-right:0}.color-picker .hue-alpha{align-items:center;margin-bottom:3px}.color-picker .hue{direction:ltr;width:100%;height:16px;margin-bottom:16px;border:none;cursor:pointer;background-size:100% 100%;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJYAAAAQCAYAAAD06IYnAAAABmJLR0QA/wD/AP+gvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH4AIWDwkUFWbCCAAAAFxJREFUaN7t0kEKg0AQAME2x83/n2qu5qCgD1iDhCoYdpnbQC9bbY1qVO/jvc6k3ad91s7/7F1/csgPrujuQ17BDYSFsBAWwgJhISyEBcJCWAgLhIWwEBYIi2f7Ar/1TCgFH2X9AAAAAElFTkSuQmCC)}.color-picker .value{direction:rtl;width:100%;height:16px;margin-bottom:16px;border:none;cursor:pointer;background-size:100% 100%;background-image:url(data:image/png;base64,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)}.color-picker .alpha{direction:ltr;width:100%;height:16px;border:none;cursor:pointer;background-size:100% 100%;background-image:url(data:image/png;base64,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)}.color-picker .type-policy{position:absolute;top:218px;right:12px;width:16px;height:24px;background-size:8px 16px;background-image:url(data:image/png;base64,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);background-repeat:no-repeat;background-position:center}.color-picker .type-policy .type-policy-arrow{display:block;width:100%;height:50%}.color-picker .selected-color{position:absolute;top:16px;left:8px;width:40px;height:40px;border:1px solid #a9a9a9;border-radius:50%}.color-picker .selected-color-background{width:40px;height:40px;border-radius:50%;background-image:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAAoCAYAAACM/rhtAAAAh0lEQVRYR+2W0QlAMQgD60zdfwOdqa8TmI/wQMr5K0I5bZLIzLOa2nt37VVVbd+dDx5obgCC3KBLwJ2ff4PnVidkf+ucIhw80HQaCLo3DMH3CRK3iFsmAWVl6hPNDwt8EvNE5q+YuEXcMgkonVM6SdyCoEvAnZ8v1Hjx817MilmxSUB5rdLJDycZgUAZUch/AAAAAElFTkSuQmCC)}.color-picker .saturation-lightness{direction:ltr;width:100%;height:130px;border:none;cursor:pointer;touch-action:manipulation;background-size:100% 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)}.color-picker .cp-add-color-button-class{position:absolute;display:inline;padding:0;margin:3px -3px;border:0;cursor:pointer;background:0 0}.color-picker .cp-add-color-button-class:hover{text-decoration:underline}.color-picker .cp-add-color-button-class:disabled{cursor:not-allowed;color:#999}.color-picker .cp-add-color-button-class:disabled:hover{text-decoration:none}.color-picker .cp-remove-color-button-class{position:absolute;top:-5px;right:-5px;display:block;width:10px;height:10px;border-radius:50%;cursor:pointer;text-align:center;background:#fff;box-shadow:1px 1px 5px #333}.color-picker .cp-remove-color-button-class::before{content:'x';position:relative;bottom:3.5px;display:inline-block;font-size:10px}\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.ChangeDetectorRef }, { type: ColorPickerService }]; }, { handleEsc: [{\n            type: HostListener,\n            args: ['document:keyup.esc', ['$event']]\n        }], handleEnter: [{\n            type: HostListener,\n            args: ['document:keyup.enter', ['$event']]\n        }], dialogElement: [{\n            type: ViewChild,\n            args: ['dialogPopup', { static: true }]\n        }], hueSlider: [{\n            type: ViewChild,\n            args: ['hueSlider', { static: true }]\n        }], alphaSlider: [{\n            type: ViewChild,\n            args: ['alphaSlider', { static: true }]\n        }] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ColorPickerDirective, [{\n        type: Directive,\n        args: [{\n                selector: '[colorPicker]',\n                exportAs: 'ngxColorPicker'\n            }]\n    }], function () { return [{ type: ɵngcc0.Injector }, { type: ɵngcc0.ComponentFactoryResolver }, { type: ɵngcc0.ApplicationRef }, { type: ɵngcc0.ViewContainerRef }, { type: ɵngcc0.ElementRef }, { type: ColorPickerService }]; }, { cpWidth: [{\n            type: Input\n        }], cpHeight: [{\n            type: Input\n        }], cpToggle: [{\n            type: Input\n        }], cpDisabled: [{\n            type: Input\n        }], cpIgnoredElements: [{\n            type: Input\n        }], cpFallbackColor: [{\n            type: Input\n        }], cpColorMode: [{\n            type: Input\n        }], cpCmykEnabled: [{\n            type: Input\n        }], cpOutputFormat: [{\n            type: Input\n        }], cpAlphaChannel: [{\n            type: Input\n        }], cpDisableInput: [{\n            type: Input\n        }], cpDialogDisplay: [{\n            type: Input\n        }], cpSaveClickOutside: [{\n            type: Input\n        }], cpCloseClickOutside: [{\n            type: Input\n        }], cpUseRootViewContainer: [{\n            type: Input\n        }], cpPosition: [{\n            type: Input\n        }], cpPositionOffset: [{\n            type: Input\n        }], cpPositionRelativeToArrow: [{\n            type: Input\n        }], cpOKButton: [{\n            type: Input\n        }], cpOKButtonText: [{\n            type: Input\n        }], cpOKButtonClass: [{\n            type: Input\n        }], cpCancelButton: [{\n            type: Input\n        }], cpCancelButtonText: [{\n            type: Input\n        }], cpCancelButtonClass: [{\n            type: Input\n        }], cpPresetLabel: [{\n            type: Input\n        }], cpPresetColorsClass: [{\n            type: Input\n        }], cpMaxPresetColorsLength: [{\n            type: Input\n        }], cpPresetEmptyMessage: [{\n            type: Input\n        }], cpPresetEmptyMessageClass: [{\n            type: Input\n        }], cpAddColorButton: [{\n            type: Input\n        }], cpAddColorButtonText: [{\n            type: Input\n        }], cpAddColorButtonClass: [{\n            type: Input\n        }], cpRemoveColorButtonClass: [{\n            type: Input\n        }], cpInputChange: [{\n            type: Output\n        }], cpToggleChange: [{\n            type: Output\n        }], cpSliderChange: [{\n            type: Output\n        }], cpSliderDragEnd: [{\n            type: Output\n        }], cpSliderDragStart: [{\n            type: Output\n        }], colorPickerOpen: [{\n            type: Output\n        }], colorPickerClose: [{\n            type: Output\n        }], colorPickerCancel: [{\n            type: Output\n        }], colorPickerSelect: [{\n            type: Output\n        }], colorPickerChange: [{\n            type: Output\n        }], cpCmykColorChange: [{\n            type: Output\n        }], cpPresetColorsChange: [{\n            type: Output\n        }], handleClick: [{\n            type: HostListener,\n            args: ['click']\n        }], handleFocus: [{\n            type: HostListener,\n            args: ['focus']\n        }], handleInput: [{\n            type: HostListener,\n            args: ['input', ['$event']]\n        }], colorPicker: [{\n            type: Input\n        }], cpPresetColors: [{\n            type: Input\n        }] }); })();\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(ColorPickerModule, { declarations: function () { return [ColorPickerComponent, ColorPickerDirective, TextDirective, SliderDirective]; }, imports: function () { return [CommonModule]; }, exports: function () { return [ColorPickerDirective]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(ColorPickerModule, [{\n        type: NgModule,\n        args: [{\n                imports: [CommonModule],\n                exports: [ColorPickerDirective],\n                providers: [ColorPickerService],\n                declarations: [ColorPickerComponent, ColorPickerDirective, TextDirective, SliderDirective],\n                entryComponents: [ColorPickerComponent]\n            }]\n    }], null, null); })();\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { Cmyk, ColorPickerComponent, ColorPickerDirective, ColorPickerModule, ColorPickerService, Hsla, Hsva, Rgba, SliderDirective, TextDirective };\n\n//# sourceMappingURL=ngx-color-picker.js.map","import {ChangeDetectionStrategy, Component, ElementRef, Inject, OnInit, Optional, ViewChild} from '@angular/core';\r\nimport {OverlayPanelRef} from '../overlay-panel/overlay-panel-ref';\r\nimport {OVERLAY_PANEL_DATA} from '../overlay-panel/overlay-panel-data';\r\nimport {ColorPickerService} from 'ngx-color-picker';\r\n\r\n@Component({\r\n    templateUrl: './colorpicker-panel.component.html',\r\n    styleUrls: ['./colorpicker-panel.component.scss'],\r\n    changeDetection: ChangeDetectionStrategy.OnPush,\r\n    providers: [\r\n        ColorPickerService,\r\n    ]\r\n})\r\nexport class ColorpickerPanelComponent implements OnInit {\r\n    @ViewChild('trigger', { static: true }) trigger: ElementRef<HTMLElement>;\r\n   public color: string;\r\n\r\n    constructor(\r\n        @Inject(OVERLAY_PANEL_DATA) @Optional() public data: {color?: string},\r\n        private overlayPanelRef: OverlayPanelRef,\r\n    ) {}\r\n\r\n    ngOnInit() {\r\n        this.color = this.getInitialColor();\r\n\r\n        // open color picker\r\n        setTimeout(() => {\r\n            this.trigger.nativeElement.click();\r\n        });\r\n    }\r\n\r\n    public emitSelectedEvent(value: string) {\r\n        this.color = value;\r\n        // const rgba = 'rgba(' + hexToRgb(value).join(',') + ')';\r\n        this.overlayPanelRef.emitValue(value);\r\n    }\r\n\r\n    private getInitialColor() {\r\n        let color = (this.data && this.data.color) || null;\r\n        if (color && color.replace(/ /g, '') === 'rgba(0,0,0,0)') color = undefined;\r\n        return color;\r\n    }\r\n}\r\n","<div class=\"trigger\" #trigger\r\n     [colorPicker]=\"color\"\r\n     [cpAlphaChannel]=\"'always'\"\r\n     [cpOutputFormat]=\"'rgba'\"\r\n     (colorPickerChange)=\"emitSelectedEvent($event)\"\r\n     [cpDialogDisplay]=\"'inline'\"\r\n     [cpToggle]=\"false\"\r\n></div>\r\n","import { ConnectedPosition } from '@angular/cdk/overlay';\r\n\r\nexport const BOTTOM_POSITION: ConnectedPosition[] = [\r\n    {originX: 'center', originY: 'bottom', overlayX: 'center', overlayY: 'top', offsetY: 5, offsetX: 5},\r\n    {originX: 'center', originY: 'top', overlayX: 'center', overlayY: 'bottom'},\r\n];\r\n","<div class=\"colors\">\n    <button class=\"color-picker-button\" mat-icon-button (click)=\"openColorPicker()\" #colorPickerButton>\n        <mat-icon svgIcon=\"color-wheel-custom\"></mat-icon>\n    </button>\n    <button\n            class=\"no-style color control\"\n            (click)=\"changeColor(color)\"\n            *ngFor=\"let color of colors\"\n            [style.background]=\"color\"\n            [class.selected]=\"(selectedColor$ | async) === color\"\n    ></button>\n</div>\n<div class=\"bottom-label\" trans><ng-content></ng-content></div>","import {ChangeDetectionStrategy, Component, ElementRef, HostBinding, Input, ViewChild, ViewEncapsulation} from '@angular/core';\nimport {ControlValueAccessor, NG_VALUE_ACCESSOR} from '@angular/forms';\nimport {ColorpickerPanelComponent} from 'common/core/ui/color-picker/colorpicker-panel.component';\nimport {OverlayPanel} from 'common/core/ui/overlay-panel/overlay-panel.service';\nimport {Settings} from 'common/core/config/settings.service';\nimport {BehaviorSubject} from 'rxjs';\nimport {BOTTOM_POSITION} from '@common/core/ui/overlay-panel/positions/bottom-position';\n\n@Component({\n    selector: 'color-widget',\n    templateUrl: './color-widget.component.html',\n    styleUrls: ['./color-widget.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {class: 'color-widget'},\n    providers: [{\n        provide: NG_VALUE_ACCESSOR,\n        useExisting: ColorWidgetComponent,\n        multi: true,\n    }]\n})\nexport class ColorWidgetComponent implements ControlValueAccessor {\n    @ViewChild('colorPickerButton', { read: ElementRef }) colorPickerButton: ElementRef;\n    @Input() @HostBinding('class.compact') compact = false;\n\n    public selectedColor$ = new BehaviorSubject('#000');\n    public colors: string[];\n    public propagateChange: Function;\n\n    constructor(\n        private overlayPanel: OverlayPanel,\n        private config: Settings,\n    ) {\n        this.colors = this.config.get('pixie.ui.colorPresets.items');\n    }\n\n    public changeColor(color: string) {\n        this.selectedColor$.next(color);\n        this.propagateChange(color);\n    }\n\n    public openColorPicker() {\n        const config = {position: BOTTOM_POSITION, hasBackdrop: true, origin: this.colorPickerButton};\n        this.overlayPanel.open(ColorpickerPanelComponent, config)\n            .valueChanged().subscribe(color => this.changeColor(color));\n    }\n\n    public writeValue(value: string|null) {\n        this.selectedColor$.next(value);\n    }\n\n    public registerOnChange(fn: Function) {\n        this.propagateChange = fn;\n    }\n\n    public registerOnTouched() {}\n}\n","<ng-container *ngIf=\"selectedFilter$ | async as selectedFilter\">\n    <ng-container *ngFor=\"let config of getFilterOptions(selectedFilter) | keyvalue\">\n        <ng-container *ngIf=\"config.value.type === 'colorPicker'\">\n            <color-widget [formControl]=\"colorFormControl\" (ngModelChange)=\"applyFilterValue('color', $event)\"></color-widget>\n        </ng-container>\n        <div class=\"input-container\" *ngIf=\"config.value.type === 'select'\">\n            <label [for]=\"config.key\" trans>{{config.key}}</label>\n            <select [id]=\"config.key\" (change)=\"applyFilterValue(config.key, $event.target.value)\">\n                <option [value]=\"value\" *ngFor=\"let value of config.value.available\" trans>{{value}}</option>\n            </select>\n        </div>\n        <div class=\"slider-container\" *ngIf=\"config.value.type === 'slider'\">\n            <div class=\"slider-label\" trans>{{config.key}}</div>\n            <mat-slider\n                    [value]=\"config.value.current\"\n                    [min]=\"config.value.min || 0\"\n                    [max]=\"config.value.max || 100\"\n                    [step]=\"config.value.step || 1\"\n                    (input)=\"applyFilterValue(config.key, $event.value)\"\n            ></mat-slider>\n        </div>\n    </ng-container>\n</ng-container>\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {FormControl} from '@angular/forms';\nimport {FilterToolService} from '../../../../image-editor/tools/filter/filter-tool.service';\nimport {Select, Store} from '@ngxs/store';\nimport {FilterState} from '../../../state/filter/filter.state';\nimport {Observable} from 'rxjs';\n\n@Component({\n    selector: 'filter-controls',\n    templateUrl: './filter-controls.component.html',\n    styleUrls: ['./filter-controls.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None,\n})\nexport class FilterControlsComponent {\n    @Select(FilterState.selectedFilter) selectedFilter$: Observable<string>;\n    public colorFormControl = new FormControl();\n\n    constructor(\n        private filterTool: FilterToolService,\n        private store: Store,\n    ) {}\n\n    public applyFilterValue(optionName: string, value: string|number) {\n        const filterName = this.store.selectSnapshot(FilterState.selectedFilter);\n        this.filterTool.applyValue(filterName, optionName, value);\n    }\n\n    public getFilterOptions(name: string) {\n        return this.filterTool.getByName(name).options;\n    }\n}\n","<div class=\"tool-panel-content filter-list\" *ngIf=\"activeFilters$ | async as activeFilters\" [class.hidden]=\"selectedFilter$ | async\">\n    <div class=\"button-with-image\" *ngFor=\"let filter of filterList\" (click)=\"applyFilter(filter)\">\n        <div class=\"image-container\">\n            <img [src]=\"getFilterImage(filter)\" alt=\"Filter preview\">\n            <div class=\"button-overlay\" *ngIf=\"activeFilters.indexOf(filter) > -1\">\n                <button mat-icon-button (click)=\"removeFilter(filter); $event.stopPropagation();\">\n                    <mat-icon svgIcon=\"cancel\"></mat-icon>\n                </button>\n                <button mat-icon-button (click)=\"showFilterControls(filter); $event.stopPropagation();\" *ngIf=\"filterTool.hasOptions(filter)\">\n                    <mat-icon svgIcon=\"settings\"></mat-icon>\n                </button>\n            </div>\n        </div>\n        <div class=\"bottom-label\" trans>{{getFilterDisplayName(filter)}}</div>\n    </div>\n</div>\n\n<filter-controls *ngIf=\"selectedFilter$ | async as selectedFilter\" class=\"tool-panel-content\" [ngClass]=\"selectedFilter\"></filter-controls>\n\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {Settings} from 'common/core/config/settings.service';\nimport {FilterToolService} from '../../../../image-editor/tools/filter/filter-tool.service';\nimport {Select, Store} from '@ngxs/store';\nimport {EditorState} from '../../../../image-editor/state/editor-state';\nimport {Observable} from 'rxjs';\nimport {OpenFilterControls} from '../../../state/filter/filter.actions';\nimport {FilterState} from '../../../state/filter/filter.state';\nimport {DrawerName} from '../drawer-name.enum';\nimport {startCase} from '@common/core/utils/start-case';\n\n@Component({\n    selector: 'filter-drawer',\n    templateUrl: './filter-drawer.component.html',\n    styleUrls: ['./filter-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class FilterDrawerComponent {\n    @Select(EditorState.activePanel) forePanel$: Observable<DrawerName>;\n    @Select(FilterState.activeFilters) activeFilters$: Observable<string[]>;\n    @Select(FilterState.selectedFilter) selectedFilter$: Observable<string|null>;\n    @Select(FilterState.dirty) dirty$: Observable<boolean>;\n\n    public filterList: string[] = [];\n\n    constructor(\n        private settings: Settings,\n        public filterTool: FilterToolService,\n        protected store: Store,\n        public config: Settings,\n    ) {\n        this.filterList = this.config.get('pixie.tools.filter.items');\n    }\n\n    public applyFilter(filter: string) {\n        this.filterTool.apply(filter);\n    }\n\n    public removeFilter(filter: string) {\n        this.filterTool.remove(filter);\n    }\n\n    public getFilterImage(filter: string) {\n        return this.settings.getAssetUrl('images/filters/square/' + filter.replace(' ', '-') + '.jpg', true);\n    }\n\n    public showFilterControls(filter: string) {\n        this.store.dispatch(new OpenFilterControls(filter));\n    }\n\n    public getFilterDisplayName(name: string): string {\n        if (name === 'blackWhite') return 'Black & White';\n        return startCase(name);\n    }\n}\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport { MatSliderChange } from '@angular/material/slider';\nimport {TransformToolService} from '../../../../image-editor/tools/transform/transform-tool.service';\nimport {Store} from '@ngxs/store';\nimport {MarkAsDirty} from '../../../state/transform/transform.actions';\n\n@Component({\n    selector: 'transform-drawer',\n    templateUrl: './transform-drawer.component.html',\n    styleUrls: ['./transform-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class TransformDrawerComponent {\n    constructor(\n        private store: Store,\n        private transformTool: TransformToolService,\n    ) {}\n\n    public rotateLeft() {\n        this.transformTool.rotate('basic', -90);\n        this.markAsDirty();\n    }\n\n    public rotateRight() {\n        this.transformTool.rotate('basic', 90);\n        this.markAsDirty();\n    }\n\n    public skew(e: MatSliderChange) {\n        this.transformTool.rotate('skew', e.value);\n    }\n\n    public flipHorizontal() {\n        this.transformTool.flip('horizontal');\n        this.markAsDirty();\n    }\n\n    public flipVertical() {\n        this.transformTool.flip('vertical');\n        this.markAsDirty();\n    }\n\n    public markAsDirty() {\n        this.store.dispatch(new MarkAsDirty());\n    }\n}\n","import {ChangeDetectionStrategy, Component, OnInit, ViewEncapsulation} from '@angular/core';\nimport {EditorControlsService} from '../../editor-controls.service';\nimport {CanvasService} from '../../../../image-editor/canvas/canvas.service';\nimport {HistoryToolService} from '../../../../image-editor/history/history-tool.service';\nimport {ResizeToolService} from '../../../../image-editor/tools/resize/resize-tool.service';\nimport {Toast} from '@common/core/ui/toast.service';\nimport {Store} from '@ngxs/store';\nimport {SetResizeDimensions} from '../../../state/resize/resize.actions';\nimport {FormControl, FormGroup} from '@angular/forms';\nimport {debounceTime, filter} from 'rxjs/operators';\nimport {ApplyChanges} from '../../../../image-editor/state/editor-state-actions';\nimport {ResizeState} from '../../../state/resize/resize.state';\nimport {DrawerName} from '../drawer-name.enum';\nimport {EditorState} from '../../../../image-editor/state/editor-state';\nimport {Settings} from '@common/core/config/settings.service';\n\ninterface ResizeFormValue {\n    width: number;\n    height: number;\n    maintainAspectRatio: boolean;\n    usePercentages: boolean;\n}\n\n@Component({\n    selector: 'resize-drawer',\n    templateUrl: './resize-drawer.component.html',\n    styleUrls: ['./resize-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class ResizeDrawerComponent implements OnInit {\n    public resizeForm = new FormGroup({\n        width: new FormControl(),\n        height: new FormControl(),\n        usePercentages: new FormControl(false),\n        maintainAspectRatio: new FormControl(true),\n    });\n\n    constructor(\n        private canvas: CanvasService,\n        protected history: HistoryToolService,\n        private resizeTool: ResizeToolService,\n        public controls: EditorControlsService,\n        private toast: Toast,\n        private store: Store,\n        private config: Settings,\n    ) {}\n\n    public minWidth() {\n        const minWidth = this.config.get('pixie.tools.resize.minWidth', 50);\n        if (this.resizeForm.value.usePercentages) {\n            return Math.ceil(minWidth * 100 / this.canvas.state.original.width);\n        }\n        return minWidth;\n    }\n\n    public maxWidth() {\n        const maxWidth = this.config.get('pixie.tools.resize.maxWidth', 2400);\n        if (this.resizeForm.value.usePercentages) {\n            return Math.ceil(maxWidth * 100 / this.canvas.state.original.width);\n        }\n        return maxWidth;\n    }\n\n    public minHeight() {\n        const minHeight = this.config.get('pixie.tools.resize.minHeight', 50);\n        if (this.resizeForm.value.usePercentages) {\n            return Math.ceil(minHeight * 100 / this.canvas.state.original.height);\n        }\n        return minHeight;\n    }\n\n    public maxHeight() {\n        const maxHeight = this.config.get('pixie.tools.resize.maxHeight', 2400);\n        if (this.resizeForm.value.usePercentages) {\n            return Math.ceil(maxHeight * 100 / this.canvas.state.original.height);\n        }\n        return maxHeight;\n    }\n\n    ngOnInit() {\n        this.resizeForm.patchValue({\n            width: this.resizeForm.value.usePercentages ? 100 : this.canvas.state.original.width,\n            height: this.resizeForm.value.usePercentages ? 100 : this.canvas.state.original.height,\n        });\n\n        this.bindToWidthControl();\n        this.bindToHeightControl();\n        this.bindToPercentageControl();\n        this.syncFormWithState();\n    }\n\n    public applyChanges() {\n        if (this.store.selectSnapshot(ResizeState.dirty)) {\n            this.store.dispatch(new ApplyChanges(DrawerName.RESIZE));\n        }\n    }\n\n    private syncFormWithState() {\n        this.resizeForm.valueChanges\n            .pipe(\n                debounceTime(200),\n                filter(() => this.store.selectSnapshot(EditorState.activePanel) === DrawerName.RESIZE)\n            )\n            .subscribe(() => {\n                // get current values from form because \"emitEvent: false\" is used\n                const value = this.applyMinMaxRestrictions(this.resizeForm.getRawValue());\n                this.store.dispatch(new SetResizeDimensions(value));\n            });\n    }\n\n    private applyMinMaxRestrictions(value: ResizeFormValue) {\n        if (value.width < this.minWidth()) {\n            value.width = this.minWidth();\n            if (value.maintainAspectRatio) {\n                value.height = this.aspectToHeight(value.width);\n            }\n        }\n        if (value.width > this.maxWidth()) {\n            value.width = this.maxWidth();\n            if (value.maintainAspectRatio) {\n                value.height = this.aspectToHeight(value.width);\n            }\n        }\n        if (value.height < this.minHeight()) {\n            value.height = this.minHeight();\n            if (value.maintainAspectRatio) {\n                value.width = this.aspectToWidth(value.height);\n            }\n        }\n        if (value.height > this.maxHeight()) {\n            value.height = this.maxHeight();\n            if (value.maintainAspectRatio) {\n                value.width = this.aspectToWidth(value.height);\n            }\n        }\n        return value;\n    }\n\n    private bindToPercentageControl() {\n        this.resizeForm.get('usePercentages').valueChanges.subscribe(usePercentages => {\n            if (usePercentages) {\n                this.resizeForm.patchValue({\n                    width: 100,\n                    height: 100\n                });\n            } else {\n                this.resizeForm.patchValue({\n                    width: this.canvas.state.original.width,\n                    height: this.canvas.state.original.height,\n                });\n            }\n        });\n    }\n\n    private bindToWidthControl() {\n        // if \"maintainAspectRatio\" is enabled, update \"height\" on \"width\" change.\n        this.resizeForm.get('width').valueChanges\n            .pipe(filter(() => this.resizeForm.value.maintainAspectRatio))\n            .subscribe(value => {\n                this.resizeForm.get('height').setValue(this.aspectToHeight(value), {emitEvent: false});\n            });\n    }\n\n    private bindToHeightControl() {\n        // if \"maintainAspectRatio\" is enabled, update \"width\" on \"height\" change.\n        this.resizeForm.get('height').valueChanges\n            .pipe(filter(() => this.resizeForm.value.maintainAspectRatio))\n            .subscribe(value => {\n                this.resizeForm.get('width').setValue(this.aspectToWidth(value), {emitEvent: false});\n            });\n    }\n\n    /**\n     * Maintain aspect ratio when setting height.\n     */\n    private aspectToWidth(newHeight: number): number {\n        if (this.resizeForm.value.usePercentages) {\n            return newHeight;\n        } else {\n            const hRatio = this.canvas.state.original.height / newHeight;\n            return Math.floor(this.canvas.state.original.width / hRatio);\n        }\n    }\n\n    /**\n     * Maintain aspect ratio when setting width.\n     */\n    private aspectToHeight(newWidth: number): number {\n        if (this.resizeForm.value.usePercentages) {\n            return newWidth;\n        } else {\n            const wRatio = this.canvas.state.original.width / newWidth;\n            return Math.floor(this.canvas.state.original.height / wRatio);\n        }\n    }\n}\n","import { FocusMonitor } from '@angular/cdk/a11y';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { InjectionToken, forwardRef, EventEmitter, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, ChangeDetectorRef, NgZone, Attribute, Optional, Inject, Input, Output, ViewChild, Directive, NgModule } from '@angular/core';\nimport { NG_VALUE_ACCESSOR, NG_VALIDATORS, CheckboxRequiredValidator } from '@angular/forms';\nimport { mixinTabIndex, mixinColor, mixinDisableRipple, mixinDisabled, MatRipple, MatRippleModule, MatCommonModule } from '@angular/material/core';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\nimport { ObserversModule } from '@angular/cdk/observers';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/checkbox/checkbox-config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Default `mat-checkbox` options that can be overridden.\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/material/core';\nimport * as ɵngcc3 from '@angular/cdk/observers';\n\nconst _c0 = [\"input\"];\nconst _c1 = function () { return { enterDuration: 150 }; };\nconst _c2 = [\"*\"];\nfunction MatCheckboxDefaultOptions() { }\nif (false) {\n    /** @type {?|undefined} */\n    MatCheckboxDefaultOptions.prototype.color;\n    /** @type {?|undefined} */\n    MatCheckboxDefaultOptions.prototype.clickAction;\n}\n/**\n * Injection token to be used to override the default options for `mat-checkbox`.\n * @type {?}\n */\nconst MAT_CHECKBOX_DEFAULT_OPTIONS = new InjectionToken('mat-checkbox-default-options', {\n    providedIn: 'root',\n    factory: MAT_CHECKBOX_DEFAULT_OPTIONS_FACTORY\n});\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MAT_CHECKBOX_DEFAULT_OPTIONS_FACTORY() {\n    return {\n        color: 'accent',\n        clickAction: 'check-indeterminate',\n    };\n}\n/**\n * Injection token that can be used to specify the checkbox click behavior.\n * @deprecated Injection token will be removed, use `MAT_CHECKBOX_DEFAULT_OPTIONS` instead.\n * \\@breaking-change 10.0.0\n * @type {?}\n */\nconst MAT_CHECKBOX_CLICK_ACTION = new InjectionToken('mat-checkbox-click-action');\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/checkbox/checkbox.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Increasing integer for generating unique ids for checkbox components.\n/** @type {?} */\nlet nextUniqueId = 0;\n/**\n * Provider Expression that allows mat-checkbox to register as a ControlValueAccessor.\n * This allows it to support [(ngModel)].\n * \\@docs-private\n * @type {?}\n */\nconst MAT_CHECKBOX_CONTROL_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MatCheckbox)),\n    multi: true\n};\n/** @enum {number} */\nconst TransitionCheckState = {\n    /** The initial state of the component before any user interaction. */\n    Init: 0,\n    /** The state representing the component when it's becoming checked. */\n    Checked: 1,\n    /** The state representing the component when it's becoming unchecked. */\n    Unchecked: 2,\n    /** The state representing the component when it's becoming indeterminate. */\n    Indeterminate: 3,\n};\n/**\n * Change event object emitted by MatCheckbox.\n */\nclass MatCheckboxChange {\n}\nif (false) {\n    /**\n     * The source MatCheckbox of the event.\n     * @type {?}\n     */\n    MatCheckboxChange.prototype.source;\n    /**\n     * The new `checked` value of the checkbox.\n     * @type {?}\n     */\n    MatCheckboxChange.prototype.checked;\n}\n// Boilerplate for applying mixins to MatCheckbox.\n/**\n * \\@docs-private\n */\nclass MatCheckboxBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatCheckboxBase.prototype._elementRef;\n}\n/** @type {?} */\nconst _MatCheckboxMixinBase = mixinTabIndex(mixinColor(mixinDisableRipple(mixinDisabled(MatCheckboxBase))));\n/**\n * A material design checkbox component. Supports all of the functionality of an HTML5 checkbox,\n * and exposes a similar API. A MatCheckbox can be either checked, unchecked, indeterminate, or\n * disabled. Note that all additional accessibility attributes are taken care of by the component,\n * so there is no need to provide them yourself. However, if you want to omit a label and still\n * have the checkbox be accessible, you may supply an [aria-label] input.\n * See: https://material.io/design/components/selection-controls.html\n */\nclass MatCheckbox extends _MatCheckboxMixinBase {\n    /**\n     * @param {?} elementRef\n     * @param {?} _changeDetectorRef\n     * @param {?} _focusMonitor\n     * @param {?} _ngZone\n     * @param {?} tabIndex\n     * @param {?} _clickAction\n     * @param {?=} _animationMode\n     * @param {?=} _options\n     */\n    constructor(elementRef, _changeDetectorRef, _focusMonitor, _ngZone, tabIndex, _clickAction, _animationMode, _options) {\n        super(elementRef);\n        this._changeDetectorRef = _changeDetectorRef;\n        this._focusMonitor = _focusMonitor;\n        this._ngZone = _ngZone;\n        this._clickAction = _clickAction;\n        this._animationMode = _animationMode;\n        this._options = _options;\n        /**\n         * Attached to the aria-label attribute of the host element. In most cases, aria-labelledby will\n         * take precedence so this may be omitted.\n         */\n        this.ariaLabel = '';\n        /**\n         * Users can specify the `aria-labelledby` attribute which will be forwarded to the input element\n         */\n        this.ariaLabelledby = null;\n        this._uniqueId = `mat-checkbox-${++nextUniqueId}`;\n        /**\n         * A unique id for the checkbox input. If none is supplied, it will be auto-generated.\n         */\n        this.id = this._uniqueId;\n        /**\n         * Whether the label should appear after or before the checkbox. Defaults to 'after'\n         */\n        this.labelPosition = 'after';\n        /**\n         * Name value will be applied to the input element if present\n         */\n        this.name = null;\n        /**\n         * Event emitted when the checkbox's `checked` value changes.\n         */\n        this.change = new EventEmitter();\n        /**\n         * Event emitted when the checkbox's `indeterminate` value changes.\n         */\n        this.indeterminateChange = new EventEmitter();\n        /**\n         * Called when the checkbox is blurred. Needed to properly implement ControlValueAccessor.\n         * \\@docs-private\n         */\n        this._onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        this._currentAnimationClass = '';\n        this._currentCheckState = 0 /* Init */;\n        this._controlValueAccessorChangeFn = (/**\n         * @return {?}\n         */\n        () => { });\n        this._checked = false;\n        this._disabled = false;\n        this._indeterminate = false;\n        this._options = this._options || {};\n        if (this._options.color) {\n            this.color = this._options.color;\n        }\n        this.tabIndex = parseInt(tabIndex) || 0;\n        this._focusMonitor.monitor(elementRef, true).subscribe((/**\n         * @param {?} focusOrigin\n         * @return {?}\n         */\n        focusOrigin => {\n            if (!focusOrigin) {\n                // When a focused element becomes disabled, the browser *immediately* fires a blur event.\n                // Angular does not expect events to be raised during change detection, so any state change\n                // (such as a form control's 'ng-touched') will cause a changed-after-checked error.\n                // See https://github.com/angular/angular/issues/17793. To work around this, we defer\n                // telling the form control it has been touched until the next tick.\n                Promise.resolve().then((/**\n                 * @return {?}\n                 */\n                () => {\n                    this._onTouched();\n                    _changeDetectorRef.markForCheck();\n                }));\n            }\n        }));\n        // TODO: Remove this after the `_clickAction` parameter is removed as an injection parameter.\n        this._clickAction = this._clickAction || this._options.clickAction;\n    }\n    /**\n     * Returns the unique id for the visual hidden input.\n     * @return {?}\n     */\n    get inputId() { return `${this.id || this._uniqueId}-input`; }\n    /**\n     * Whether the checkbox is required.\n     * @return {?}\n     */\n    get required() { return this._required; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set required(value) { this._required = coerceBooleanProperty(value); }\n    /**\n     * @return {?}\n     */\n    ngAfterViewInit() {\n        this._syncIndeterminate(this._indeterminate);\n    }\n    // TODO: Delete next major revision.\n    /**\n     * @return {?}\n     */\n    ngAfterViewChecked() { }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._focusMonitor.stopMonitoring(this._elementRef);\n    }\n    /**\n     * Whether the checkbox is checked.\n     * @return {?}\n     */\n    get checked() { return this._checked; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set checked(value) {\n        if (value != this.checked) {\n            this._checked = value;\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * Whether the checkbox is disabled. This fully overrides the implementation provided by\n     * mixinDisabled, but the mixin is still required because mixinTabIndex requires it.\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        /** @type {?} */\n        const newValue = coerceBooleanProperty(value);\n        if (newValue !== this.disabled) {\n            this._disabled = newValue;\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * Whether the checkbox is indeterminate. This is also known as \"mixed\" mode and can be used to\n     * represent a checkbox with three states, e.g. a checkbox that represents a nested list of\n     * checkable items. Note that whenever checkbox is manually clicked, indeterminate is immediately\n     * set to false.\n     * @return {?}\n     */\n    get indeterminate() { return this._indeterminate; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set indeterminate(value) {\n        /** @type {?} */\n        const changed = value != this._indeterminate;\n        this._indeterminate = coerceBooleanProperty(value);\n        if (changed) {\n            if (this._indeterminate) {\n                this._transitionCheckState(3 /* Indeterminate */);\n            }\n            else {\n                this._transitionCheckState(this.checked ? 1 /* Checked */ : 2 /* Unchecked */);\n            }\n            this.indeterminateChange.emit(this._indeterminate);\n        }\n        this._syncIndeterminate(this._indeterminate);\n    }\n    /**\n     * @return {?}\n     */\n    _isRippleDisabled() {\n        return this.disableRipple || this.disabled;\n    }\n    /**\n     * Method being called whenever the label text changes.\n     * @return {?}\n     */\n    _onLabelTextChange() {\n        // Since the event of the `cdkObserveContent` directive runs outside of the zone, the checkbox\n        // component will be only marked for check, but no actual change detection runs automatically.\n        // Instead of going back into the zone in order to trigger a change detection which causes\n        // *all* components to be checked (if explicitly marked or not using OnPush), we only trigger\n        // an explicit change detection for the checkbox view and its children.\n        this._changeDetectorRef.detectChanges();\n    }\n    // Implemented as part of ControlValueAccessor.\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    writeValue(value) {\n        this.checked = !!value;\n    }\n    // Implemented as part of ControlValueAccessor.\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._controlValueAccessorChangeFn = fn;\n    }\n    // Implemented as part of ControlValueAccessor.\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this._onTouched = fn;\n    }\n    // Implemented as part of ControlValueAccessor.\n    /**\n     * @param {?} isDisabled\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this.disabled = isDisabled;\n    }\n    /**\n     * @return {?}\n     */\n    _getAriaChecked() {\n        if (this.checked) {\n            return 'true';\n        }\n        return this.indeterminate ? 'mixed' : 'false';\n    }\n    /**\n     * @private\n     * @param {?} newState\n     * @return {?}\n     */\n    _transitionCheckState(newState) {\n        /** @type {?} */\n        let oldState = this._currentCheckState;\n        /** @type {?} */\n        let element = this._elementRef.nativeElement;\n        if (oldState === newState) {\n            return;\n        }\n        if (this._currentAnimationClass.length > 0) {\n            element.classList.remove(this._currentAnimationClass);\n        }\n        this._currentAnimationClass = this._getAnimationClassForCheckStateTransition(oldState, newState);\n        this._currentCheckState = newState;\n        if (this._currentAnimationClass.length > 0) {\n            element.classList.add(this._currentAnimationClass);\n            // Remove the animation class to avoid animation when the checkbox is moved between containers\n            /** @type {?} */\n            const animationClass = this._currentAnimationClass;\n            this._ngZone.runOutsideAngular((/**\n             * @return {?}\n             */\n            () => {\n                setTimeout((/**\n                 * @return {?}\n                 */\n                () => {\n                    element.classList.remove(animationClass);\n                }), 1000);\n            }));\n        }\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _emitChangeEvent() {\n        /** @type {?} */\n        const event = new MatCheckboxChange();\n        event.source = this;\n        event.checked = this.checked;\n        this._controlValueAccessorChangeFn(this.checked);\n        this.change.emit(event);\n    }\n    /**\n     * Toggles the `checked` state of the checkbox.\n     * @return {?}\n     */\n    toggle() {\n        this.checked = !this.checked;\n    }\n    /**\n     * Event handler for checkbox input element.\n     * Toggles checked state if element is not disabled.\n     * Do not toggle on (change) event since IE doesn't fire change event when\n     *   indeterminate checkbox is clicked.\n     * @param {?} event\n     * @return {?}\n     */\n    _onInputClick(event) {\n        // We have to stop propagation for click events on the visual hidden input element.\n        // By default, when a user clicks on a label element, a generated click event will be\n        // dispatched on the associated input element. Since we are using a label element as our\n        // root container, the click event on the `checkbox` will be executed twice.\n        // The real click event will bubble up, and the generated click event also tries to bubble up.\n        // This will lead to multiple click events.\n        // Preventing bubbling for the second event will solve that issue.\n        event.stopPropagation();\n        // If resetIndeterminate is false, and the current state is indeterminate, do nothing on click\n        if (!this.disabled && this._clickAction !== 'noop') {\n            // When user manually click on the checkbox, `indeterminate` is set to false.\n            if (this.indeterminate && this._clickAction !== 'check') {\n                Promise.resolve().then((/**\n                 * @return {?}\n                 */\n                () => {\n                    this._indeterminate = false;\n                    this.indeterminateChange.emit(this._indeterminate);\n                }));\n            }\n            this.toggle();\n            this._transitionCheckState(this._checked ? 1 /* Checked */ : 2 /* Unchecked */);\n            // Emit our custom change event if the native input emitted one.\n            // It is important to only emit it, if the native input triggered one, because\n            // we don't want to trigger a change event, when the `checked` variable changes for example.\n            this._emitChangeEvent();\n        }\n        else if (!this.disabled && this._clickAction === 'noop') {\n            // Reset native input when clicked with noop. The native checkbox becomes checked after\n            // click, reset it to be align with `checked` value of `mat-checkbox`.\n            this._inputElement.nativeElement.checked = this.checked;\n            this._inputElement.nativeElement.indeterminate = this.indeterminate;\n        }\n    }\n    /**\n     * Focuses the checkbox.\n     * @param {?=} origin\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(origin = 'keyboard', options) {\n        this._focusMonitor.focusVia(this._inputElement, origin, options);\n    }\n    /**\n     * @param {?} event\n     * @return {?}\n     */\n    _onInteractionEvent(event) {\n        // We always have to stop propagation on the change event.\n        // Otherwise the change event, from the input element, will bubble up and\n        // emit its event object to the `change` output.\n        event.stopPropagation();\n    }\n    /**\n     * @private\n     * @param {?} oldState\n     * @param {?} newState\n     * @return {?}\n     */\n    _getAnimationClassForCheckStateTransition(oldState, newState) {\n        // Don't transition if animations are disabled.\n        if (this._animationMode === 'NoopAnimations') {\n            return '';\n        }\n        /** @type {?} */\n        let animSuffix = '';\n        switch (oldState) {\n            case 0 /* Init */:\n                // Handle edge case where user interacts with checkbox that does not have [(ngModel)] or\n                // [checked] bound to it.\n                if (newState === 1 /* Checked */) {\n                    animSuffix = 'unchecked-checked';\n                }\n                else if (newState == 3 /* Indeterminate */) {\n                    animSuffix = 'unchecked-indeterminate';\n                }\n                else {\n                    return '';\n                }\n                break;\n            case 2 /* Unchecked */:\n                animSuffix = newState === 1 /* Checked */ ?\n                    'unchecked-checked' : 'unchecked-indeterminate';\n                break;\n            case 1 /* Checked */:\n                animSuffix = newState === 2 /* Unchecked */ ?\n                    'checked-unchecked' : 'checked-indeterminate';\n                break;\n            case 3 /* Indeterminate */:\n                animSuffix = newState === 1 /* Checked */ ?\n                    'indeterminate-checked' : 'indeterminate-unchecked';\n                break;\n        }\n        return `mat-checkbox-anim-${animSuffix}`;\n    }\n    /**\n     * Syncs the indeterminate value with the checkbox DOM node.\n     *\n     * We sync `indeterminate` directly on the DOM node, because in Ivy the check for whether a\n     * property is supported on an element boils down to `if (propName in element)`. Domino's\n     * HTMLInputElement doesn't have an `indeterminate` property so Ivy will warn during\n     * server-side rendering.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _syncIndeterminate(value) {\n        /** @type {?} */\n        const nativeCheckbox = this._inputElement;\n        if (nativeCheckbox) {\n            nativeCheckbox.nativeElement.indeterminate = value;\n        }\n    }\n}\nMatCheckbox.ɵfac = function MatCheckbox_Factory(t) { return new (t || MatCheckbox)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵinjectAttribute('tabindex'), ɵngcc0.ɵɵdirectiveInject(MAT_CHECKBOX_CLICK_ACTION, 8), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8), ɵngcc0.ɵɵdirectiveInject(MAT_CHECKBOX_DEFAULT_OPTIONS, 8)); };\nMatCheckbox.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatCheckbox, selectors: [[\"mat-checkbox\"]], viewQuery: function MatCheckbox_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n        ɵngcc0.ɵɵviewQuery(MatRipple, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._inputElement = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.ripple = _t.first);\n    } }, hostAttrs: [1, \"mat-checkbox\"], hostVars: 12, hostBindings: function MatCheckbox_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵhostProperty(\"id\", ctx.id);\n        ɵngcc0.ɵɵattribute(\"tabindex\", null);\n        ɵngcc0.ɵɵclassProp(\"mat-checkbox-indeterminate\", ctx.indeterminate)(\"mat-checkbox-checked\", ctx.checked)(\"mat-checkbox-disabled\", ctx.disabled)(\"mat-checkbox-label-before\", ctx.labelPosition == \"before\")(\"_mat-animation-noopable\", ctx._animationMode === \"NoopAnimations\");\n    } }, inputs: { disableRipple: \"disableRipple\", color: \"color\", tabIndex: \"tabIndex\", ariaLabel: [\"aria-label\", \"ariaLabel\"], ariaLabelledby: [\"aria-labelledby\", \"ariaLabelledby\"], id: \"id\", labelPosition: \"labelPosition\", name: \"name\", required: \"required\", checked: \"checked\", disabled: \"disabled\", indeterminate: \"indeterminate\", value: \"value\" }, outputs: { change: \"change\", indeterminateChange: \"indeterminateChange\" }, exportAs: [\"matCheckbox\"], features: [ɵngcc0.ɵɵProvidersFeature([MAT_CHECKBOX_CONTROL_VALUE_ACCESSOR]), ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c2, decls: 17, vars: 19, consts: [[1, \"mat-checkbox-layout\"], [\"label\", \"\"], [1, \"mat-checkbox-inner-container\"], [\"type\", \"checkbox\", 1, \"mat-checkbox-input\", \"cdk-visually-hidden\", 3, \"id\", \"required\", \"checked\", \"disabled\", \"tabIndex\", \"change\", \"click\"], [\"input\", \"\"], [\"matRipple\", \"\", 1, \"mat-checkbox-ripple\", \"mat-focus-indicator\", 3, \"matRippleTrigger\", \"matRippleDisabled\", \"matRippleRadius\", \"matRippleCentered\", \"matRippleAnimation\"], [1, \"mat-ripple-element\", \"mat-checkbox-persistent-ripple\"], [1, \"mat-checkbox-frame\"], [1, \"mat-checkbox-background\"], [\"version\", \"1.1\", \"focusable\", \"false\", \"viewBox\", \"0 0 24 24\", 0, \"xml\", \"space\", \"preserve\", 1, \"mat-checkbox-checkmark\"], [\"fill\", \"none\", \"stroke\", \"white\", \"d\", \"M4.1,12.7 9,17.6 20.3,6.3\", 1, \"mat-checkbox-checkmark-path\"], [1, \"mat-checkbox-mixedmark\"], [1, \"mat-checkbox-label\", 3, \"cdkObserveContent\"], [\"checkboxLabel\", \"\"], [2, \"display\", \"none\"]], template: function MatCheckbox_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵelementStart(0, \"label\", 0, 1);\n        ɵngcc0.ɵɵelementStart(2, \"div\", 2);\n        ɵngcc0.ɵɵelementStart(3, \"input\", 3, 4);\n        ɵngcc0.ɵɵlistener(\"change\", function MatCheckbox_Template_input_change_3_listener($event) { return ctx._onInteractionEvent($event); })(\"click\", function MatCheckbox_Template_input_click_3_listener($event) { return ctx._onInputClick($event); });\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(5, \"div\", 5);\n        ɵngcc0.ɵɵelement(6, \"div\", 6);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelement(7, \"div\", 7);\n        ɵngcc0.ɵɵelementStart(8, \"div\", 8);\n        ɵngcc0.ɵɵnamespaceSVG();\n        ɵngcc0.ɵɵelementStart(9, \"svg\", 9);\n        ɵngcc0.ɵɵelement(10, \"path\", 10);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵnamespaceHTML();\n        ɵngcc0.ɵɵelement(11, \"div\", 11);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(12, \"span\", 12, 13);\n        ɵngcc0.ɵɵlistener(\"cdkObserveContent\", function MatCheckbox_Template_span_cdkObserveContent_12_listener() { return ctx._onLabelTextChange(); });\n        ɵngcc0.ɵɵelementStart(14, \"span\", 14);\n        ɵngcc0.ɵɵtext(15, \"\\u00A0\");\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵprojection(16);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        const _r0 = ɵngcc0.ɵɵreference(1);\n        const _r2 = ɵngcc0.ɵɵreference(13);\n        ɵngcc0.ɵɵattribute(\"for\", ctx.inputId);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵclassProp(\"mat-checkbox-inner-container-no-side-margin\", !_r2.textContent || !_r2.textContent.trim());\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"id\", ctx.inputId)(\"required\", ctx.required)(\"checked\", ctx.checked)(\"disabled\", ctx.disabled)(\"tabIndex\", ctx.tabIndex);\n        ɵngcc0.ɵɵattribute(\"value\", ctx.value)(\"name\", ctx.name)(\"aria-label\", ctx.ariaLabel || null)(\"aria-labelledby\", ctx.ariaLabelledby)(\"aria-checked\", ctx._getAriaChecked());\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵproperty(\"matRippleTrigger\", _r0)(\"matRippleDisabled\", ctx._isRippleDisabled())(\"matRippleRadius\", 20)(\"matRippleCentered\", true)(\"matRippleAnimation\", ɵngcc0.ɵɵpureFunction0(18, _c1));\n    } }, directives: [ɵngcc2.MatRipple, ɵngcc3.CdkObserveContent], styles: [\"@keyframes mat-checkbox-fade-in-background{0%{opacity:0}50%{opacity:1}}@keyframes mat-checkbox-fade-out-background{0%,50%{opacity:1}100%{opacity:0}}@keyframes mat-checkbox-unchecked-checked-checkmark-path{0%,50%{stroke-dashoffset:22.910259}50%{animation-timing-function:cubic-bezier(0, 0, 0.2, 0.1)}100%{stroke-dashoffset:0}}@keyframes mat-checkbox-unchecked-indeterminate-mixedmark{0%,68.2%{transform:scaleX(0)}68.2%{animation-timing-function:cubic-bezier(0, 0, 0, 1)}100%{transform:scaleX(1)}}@keyframes mat-checkbox-checked-unchecked-checkmark-path{from{animation-timing-function:cubic-bezier(0.4, 0, 1, 1);stroke-dashoffset:0}to{stroke-dashoffset:-22.910259}}@keyframes mat-checkbox-checked-indeterminate-checkmark{from{animation-timing-function:cubic-bezier(0, 0, 0.2, 0.1);opacity:1;transform:rotate(0deg)}to{opacity:0;transform:rotate(45deg)}}@keyframes mat-checkbox-indeterminate-checked-checkmark{from{animation-timing-function:cubic-bezier(0.14, 0, 0, 1);opacity:0;transform:rotate(45deg)}to{opacity:1;transform:rotate(360deg)}}@keyframes mat-checkbox-checked-indeterminate-mixedmark{from{animation-timing-function:cubic-bezier(0, 0, 0.2, 0.1);opacity:0;transform:rotate(-45deg)}to{opacity:1;transform:rotate(0deg)}}@keyframes mat-checkbox-indeterminate-checked-mixedmark{from{animation-timing-function:cubic-bezier(0.14, 0, 0, 1);opacity:1;transform:rotate(0deg)}to{opacity:0;transform:rotate(315deg)}}@keyframes mat-checkbox-indeterminate-unchecked-mixedmark{0%{animation-timing-function:linear;opacity:1;transform:scaleX(1)}32.8%,100%{opacity:0;transform:scaleX(0)}}.mat-checkbox-background,.mat-checkbox-frame{top:0;left:0;right:0;bottom:0;position:absolute;border-radius:2px;box-sizing:border-box;pointer-events:none}.mat-checkbox{transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);cursor:pointer;-webkit-tap-highlight-color:transparent}._mat-animation-noopable.mat-checkbox{transition:none;animation:none}.mat-checkbox .mat-ripple-element:not(.mat-checkbox-persistent-ripple){opacity:.16}.mat-checkbox-layout{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:inherit;align-items:baseline;vertical-align:middle;display:inline-flex;white-space:nowrap}.mat-checkbox-label{-webkit-user-select:auto;-moz-user-select:auto;-ms-user-select:auto;user-select:auto}.mat-checkbox-inner-container{display:inline-block;height:16px;line-height:0;margin:auto;margin-right:8px;order:0;position:relative;vertical-align:middle;white-space:nowrap;width:16px;flex-shrink:0}[dir=rtl] .mat-checkbox-inner-container{margin-left:8px;margin-right:auto}.mat-checkbox-inner-container-no-side-margin{margin-left:0;margin-right:0}.mat-checkbox-frame{background-color:transparent;transition:border-color 90ms cubic-bezier(0, 0, 0.2, 0.1);border-width:2px;border-style:solid}._mat-animation-noopable .mat-checkbox-frame{transition:none}.mat-checkbox.cdk-keyboard-focused .cdk-high-contrast-active .mat-checkbox-frame{border-style:dotted}.mat-checkbox-background{align-items:center;display:inline-flex;justify-content:center;transition:background-color 90ms cubic-bezier(0, 0, 0.2, 0.1),opacity 90ms cubic-bezier(0, 0, 0.2, 0.1)}._mat-animation-noopable .mat-checkbox-background{transition:none}.cdk-high-contrast-active .mat-checkbox .mat-checkbox-background{background:none}.mat-checkbox-persistent-ripple{width:100%;height:100%;transform:none}.mat-checkbox-inner-container:hover .mat-checkbox-persistent-ripple{opacity:.04}.mat-checkbox.cdk-keyboard-focused .mat-checkbox-persistent-ripple{opacity:.12}.mat-checkbox-persistent-ripple,.mat-checkbox.mat-checkbox-disabled .mat-checkbox-inner-container:hover .mat-checkbox-persistent-ripple{opacity:0}@media(hover: none){.mat-checkbox-inner-container:hover .mat-checkbox-persistent-ripple{display:none}}.mat-checkbox-checkmark{top:0;left:0;right:0;bottom:0;position:absolute;width:100%}.mat-checkbox-checkmark-path{stroke-dashoffset:22.910259;stroke-dasharray:22.910259;stroke-width:2.1333333333px}.cdk-high-contrast-black-on-white .mat-checkbox-checkmark-path{stroke:#000 !important}.mat-checkbox-mixedmark{width:calc(100% - 6px);height:2px;opacity:0;transform:scaleX(0) rotate(0deg);border-radius:2px}.cdk-high-contrast-active .mat-checkbox-mixedmark{height:0;border-top:solid 2px;margin-top:2px}.mat-checkbox-label-before .mat-checkbox-inner-container{order:1;margin-left:8px;margin-right:auto}[dir=rtl] .mat-checkbox-label-before .mat-checkbox-inner-container{margin-left:auto;margin-right:8px}.mat-checkbox-checked .mat-checkbox-checkmark{opacity:1}.mat-checkbox-checked .mat-checkbox-checkmark-path{stroke-dashoffset:0}.mat-checkbox-checked .mat-checkbox-mixedmark{transform:scaleX(1) rotate(-45deg)}.mat-checkbox-indeterminate .mat-checkbox-checkmark{opacity:0;transform:rotate(45deg)}.mat-checkbox-indeterminate .mat-checkbox-checkmark-path{stroke-dashoffset:0}.mat-checkbox-indeterminate .mat-checkbox-mixedmark{opacity:1;transform:scaleX(1) rotate(0deg)}.mat-checkbox-unchecked .mat-checkbox-background{background-color:transparent}.mat-checkbox-disabled{cursor:default}.cdk-high-contrast-active .mat-checkbox-disabled{opacity:.5}.mat-checkbox-anim-unchecked-checked .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-in-background}.mat-checkbox-anim-unchecked-checked .mat-checkbox-checkmark-path{animation:180ms linear 0ms mat-checkbox-unchecked-checked-checkmark-path}.mat-checkbox-anim-unchecked-indeterminate .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-in-background}.mat-checkbox-anim-unchecked-indeterminate .mat-checkbox-mixedmark{animation:90ms linear 0ms mat-checkbox-unchecked-indeterminate-mixedmark}.mat-checkbox-anim-checked-unchecked .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-out-background}.mat-checkbox-anim-checked-unchecked .mat-checkbox-checkmark-path{animation:90ms linear 0ms mat-checkbox-checked-unchecked-checkmark-path}.mat-checkbox-anim-checked-indeterminate .mat-checkbox-checkmark{animation:90ms linear 0ms mat-checkbox-checked-indeterminate-checkmark}.mat-checkbox-anim-checked-indeterminate .mat-checkbox-mixedmark{animation:90ms linear 0ms mat-checkbox-checked-indeterminate-mixedmark}.mat-checkbox-anim-indeterminate-checked .mat-checkbox-checkmark{animation:500ms linear 0ms mat-checkbox-indeterminate-checked-checkmark}.mat-checkbox-anim-indeterminate-checked .mat-checkbox-mixedmark{animation:500ms linear 0ms mat-checkbox-indeterminate-checked-mixedmark}.mat-checkbox-anim-indeterminate-unchecked .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-out-background}.mat-checkbox-anim-indeterminate-unchecked .mat-checkbox-mixedmark{animation:300ms linear 0ms mat-checkbox-indeterminate-unchecked-mixedmark}.mat-checkbox-input{bottom:0;left:50%}.mat-checkbox .mat-checkbox-ripple{position:absolute;left:calc(50% - 20px);top:calc(50% - 20px);height:40px;width:40px;z-index:1;pointer-events:none}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatCheckbox.ctorParameters = () => [\n    { type: ElementRef },\n    { type: ChangeDetectorRef },\n    { type: FocusMonitor },\n    { type: NgZone },\n    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_CHECKBOX_CLICK_ACTION,] }] },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_CHECKBOX_DEFAULT_OPTIONS,] }] }\n];\nMatCheckbox.propDecorators = {\n    ariaLabel: [{ type: Input, args: ['aria-label',] }],\n    ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }],\n    id: [{ type: Input }],\n    required: [{ type: Input }],\n    labelPosition: [{ type: Input }],\n    name: [{ type: Input }],\n    change: [{ type: Output }],\n    indeterminateChange: [{ type: Output }],\n    value: [{ type: Input }],\n    _inputElement: [{ type: ViewChild, args: ['input',] }],\n    ripple: [{ type: ViewChild, args: [MatRipple,] }],\n    checked: [{ type: Input }],\n    disabled: [{ type: Input }],\n    indeterminate: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatCheckbox, [{\n        type: Component,\n        args: [{\n                selector: 'mat-checkbox',\n                template: \"<label [attr.for]=\\\"inputId\\\" class=\\\"mat-checkbox-layout\\\" #label>\\n  <div class=\\\"mat-checkbox-inner-container\\\"\\n       [class.mat-checkbox-inner-container-no-side-margin]=\\\"!checkboxLabel.textContent || !checkboxLabel.textContent.trim()\\\">\\n    <input #input\\n           class=\\\"mat-checkbox-input cdk-visually-hidden\\\" type=\\\"checkbox\\\"\\n           [id]=\\\"inputId\\\"\\n           [required]=\\\"required\\\"\\n           [checked]=\\\"checked\\\"\\n           [attr.value]=\\\"value\\\"\\n           [disabled]=\\\"disabled\\\"\\n           [attr.name]=\\\"name\\\"\\n           [tabIndex]=\\\"tabIndex\\\"\\n           [attr.aria-label]=\\\"ariaLabel || null\\\"\\n           [attr.aria-labelledby]=\\\"ariaLabelledby\\\"\\n           [attr.aria-checked]=\\\"_getAriaChecked()\\\"\\n           (change)=\\\"_onInteractionEvent($event)\\\"\\n           (click)=\\\"_onInputClick($event)\\\">\\n    <div matRipple class=\\\"mat-checkbox-ripple mat-focus-indicator\\\"\\n         [matRippleTrigger]=\\\"label\\\"\\n         [matRippleDisabled]=\\\"_isRippleDisabled()\\\"\\n         [matRippleRadius]=\\\"20\\\"\\n         [matRippleCentered]=\\\"true\\\"\\n         [matRippleAnimation]=\\\"{enterDuration: 150}\\\">\\n      <div class=\\\"mat-ripple-element mat-checkbox-persistent-ripple\\\"></div>\\n    </div>\\n    <div class=\\\"mat-checkbox-frame\\\"></div>\\n    <div class=\\\"mat-checkbox-background\\\">\\n      <svg version=\\\"1.1\\\"\\n           focusable=\\\"false\\\"\\n           class=\\\"mat-checkbox-checkmark\\\"\\n           viewBox=\\\"0 0 24 24\\\"\\n           xml:space=\\\"preserve\\\">\\n        <path class=\\\"mat-checkbox-checkmark-path\\\"\\n              fill=\\\"none\\\"\\n              stroke=\\\"white\\\"\\n              d=\\\"M4.1,12.7 9,17.6 20.3,6.3\\\"/>\\n      </svg>\\n      <!-- Element for rendering the indeterminate state checkbox. -->\\n      <div class=\\\"mat-checkbox-mixedmark\\\"></div>\\n    </div>\\n  </div>\\n  <span class=\\\"mat-checkbox-label\\\" #checkboxLabel (cdkObserveContent)=\\\"_onLabelTextChange()\\\">\\n    <!-- Add an invisible span so JAWS can read the label -->\\n    <span style=\\\"display:none\\\">&nbsp;</span>\\n    <ng-content></ng-content>\\n  </span>\\n</label>\\n\",\n                exportAs: 'matCheckbox',\n                host: {\n                    'class': 'mat-checkbox',\n                    '[id]': 'id',\n                    '[attr.tabindex]': 'null',\n                    '[class.mat-checkbox-indeterminate]': 'indeterminate',\n                    '[class.mat-checkbox-checked]': 'checked',\n                    '[class.mat-checkbox-disabled]': 'disabled',\n                    '[class.mat-checkbox-label-before]': 'labelPosition == \"before\"',\n                    '[class._mat-animation-noopable]': `_animationMode === 'NoopAnimations'`\n                },\n                providers: [MAT_CHECKBOX_CONTROL_VALUE_ACCESSOR],\n                inputs: ['disableRipple', 'color', 'tabIndex'],\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\"@keyframes mat-checkbox-fade-in-background{0%{opacity:0}50%{opacity:1}}@keyframes mat-checkbox-fade-out-background{0%,50%{opacity:1}100%{opacity:0}}@keyframes mat-checkbox-unchecked-checked-checkmark-path{0%,50%{stroke-dashoffset:22.910259}50%{animation-timing-function:cubic-bezier(0, 0, 0.2, 0.1)}100%{stroke-dashoffset:0}}@keyframes mat-checkbox-unchecked-indeterminate-mixedmark{0%,68.2%{transform:scaleX(0)}68.2%{animation-timing-function:cubic-bezier(0, 0, 0, 1)}100%{transform:scaleX(1)}}@keyframes mat-checkbox-checked-unchecked-checkmark-path{from{animation-timing-function:cubic-bezier(0.4, 0, 1, 1);stroke-dashoffset:0}to{stroke-dashoffset:-22.910259}}@keyframes mat-checkbox-checked-indeterminate-checkmark{from{animation-timing-function:cubic-bezier(0, 0, 0.2, 0.1);opacity:1;transform:rotate(0deg)}to{opacity:0;transform:rotate(45deg)}}@keyframes mat-checkbox-indeterminate-checked-checkmark{from{animation-timing-function:cubic-bezier(0.14, 0, 0, 1);opacity:0;transform:rotate(45deg)}to{opacity:1;transform:rotate(360deg)}}@keyframes mat-checkbox-checked-indeterminate-mixedmark{from{animation-timing-function:cubic-bezier(0, 0, 0.2, 0.1);opacity:0;transform:rotate(-45deg)}to{opacity:1;transform:rotate(0deg)}}@keyframes mat-checkbox-indeterminate-checked-mixedmark{from{animation-timing-function:cubic-bezier(0.14, 0, 0, 1);opacity:1;transform:rotate(0deg)}to{opacity:0;transform:rotate(315deg)}}@keyframes mat-checkbox-indeterminate-unchecked-mixedmark{0%{animation-timing-function:linear;opacity:1;transform:scaleX(1)}32.8%,100%{opacity:0;transform:scaleX(0)}}.mat-checkbox-background,.mat-checkbox-frame{top:0;left:0;right:0;bottom:0;position:absolute;border-radius:2px;box-sizing:border-box;pointer-events:none}.mat-checkbox{transition:background 400ms cubic-bezier(0.25, 0.8, 0.25, 1),box-shadow 280ms cubic-bezier(0.4, 0, 0.2, 1);cursor:pointer;-webkit-tap-highlight-color:transparent}._mat-animation-noopable.mat-checkbox{transition:none;animation:none}.mat-checkbox .mat-ripple-element:not(.mat-checkbox-persistent-ripple){opacity:.16}.mat-checkbox-layout{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:inherit;align-items:baseline;vertical-align:middle;display:inline-flex;white-space:nowrap}.mat-checkbox-label{-webkit-user-select:auto;-moz-user-select:auto;-ms-user-select:auto;user-select:auto}.mat-checkbox-inner-container{display:inline-block;height:16px;line-height:0;margin:auto;margin-right:8px;order:0;position:relative;vertical-align:middle;white-space:nowrap;width:16px;flex-shrink:0}[dir=rtl] .mat-checkbox-inner-container{margin-left:8px;margin-right:auto}.mat-checkbox-inner-container-no-side-margin{margin-left:0;margin-right:0}.mat-checkbox-frame{background-color:transparent;transition:border-color 90ms cubic-bezier(0, 0, 0.2, 0.1);border-width:2px;border-style:solid}._mat-animation-noopable .mat-checkbox-frame{transition:none}.mat-checkbox.cdk-keyboard-focused .cdk-high-contrast-active .mat-checkbox-frame{border-style:dotted}.mat-checkbox-background{align-items:center;display:inline-flex;justify-content:center;transition:background-color 90ms cubic-bezier(0, 0, 0.2, 0.1),opacity 90ms cubic-bezier(0, 0, 0.2, 0.1)}._mat-animation-noopable .mat-checkbox-background{transition:none}.cdk-high-contrast-active .mat-checkbox .mat-checkbox-background{background:none}.mat-checkbox-persistent-ripple{width:100%;height:100%;transform:none}.mat-checkbox-inner-container:hover .mat-checkbox-persistent-ripple{opacity:.04}.mat-checkbox.cdk-keyboard-focused .mat-checkbox-persistent-ripple{opacity:.12}.mat-checkbox-persistent-ripple,.mat-checkbox.mat-checkbox-disabled .mat-checkbox-inner-container:hover .mat-checkbox-persistent-ripple{opacity:0}@media(hover: none){.mat-checkbox-inner-container:hover .mat-checkbox-persistent-ripple{display:none}}.mat-checkbox-checkmark{top:0;left:0;right:0;bottom:0;position:absolute;width:100%}.mat-checkbox-checkmark-path{stroke-dashoffset:22.910259;stroke-dasharray:22.910259;stroke-width:2.1333333333px}.cdk-high-contrast-black-on-white .mat-checkbox-checkmark-path{stroke:#000 !important}.mat-checkbox-mixedmark{width:calc(100% - 6px);height:2px;opacity:0;transform:scaleX(0) rotate(0deg);border-radius:2px}.cdk-high-contrast-active .mat-checkbox-mixedmark{height:0;border-top:solid 2px;margin-top:2px}.mat-checkbox-label-before .mat-checkbox-inner-container{order:1;margin-left:8px;margin-right:auto}[dir=rtl] .mat-checkbox-label-before .mat-checkbox-inner-container{margin-left:auto;margin-right:8px}.mat-checkbox-checked .mat-checkbox-checkmark{opacity:1}.mat-checkbox-checked .mat-checkbox-checkmark-path{stroke-dashoffset:0}.mat-checkbox-checked .mat-checkbox-mixedmark{transform:scaleX(1) rotate(-45deg)}.mat-checkbox-indeterminate .mat-checkbox-checkmark{opacity:0;transform:rotate(45deg)}.mat-checkbox-indeterminate .mat-checkbox-checkmark-path{stroke-dashoffset:0}.mat-checkbox-indeterminate .mat-checkbox-mixedmark{opacity:1;transform:scaleX(1) rotate(0deg)}.mat-checkbox-unchecked .mat-checkbox-background{background-color:transparent}.mat-checkbox-disabled{cursor:default}.cdk-high-contrast-active .mat-checkbox-disabled{opacity:.5}.mat-checkbox-anim-unchecked-checked .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-in-background}.mat-checkbox-anim-unchecked-checked .mat-checkbox-checkmark-path{animation:180ms linear 0ms mat-checkbox-unchecked-checked-checkmark-path}.mat-checkbox-anim-unchecked-indeterminate .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-in-background}.mat-checkbox-anim-unchecked-indeterminate .mat-checkbox-mixedmark{animation:90ms linear 0ms mat-checkbox-unchecked-indeterminate-mixedmark}.mat-checkbox-anim-checked-unchecked .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-out-background}.mat-checkbox-anim-checked-unchecked .mat-checkbox-checkmark-path{animation:90ms linear 0ms mat-checkbox-checked-unchecked-checkmark-path}.mat-checkbox-anim-checked-indeterminate .mat-checkbox-checkmark{animation:90ms linear 0ms mat-checkbox-checked-indeterminate-checkmark}.mat-checkbox-anim-checked-indeterminate .mat-checkbox-mixedmark{animation:90ms linear 0ms mat-checkbox-checked-indeterminate-mixedmark}.mat-checkbox-anim-indeterminate-checked .mat-checkbox-checkmark{animation:500ms linear 0ms mat-checkbox-indeterminate-checked-checkmark}.mat-checkbox-anim-indeterminate-checked .mat-checkbox-mixedmark{animation:500ms linear 0ms mat-checkbox-indeterminate-checked-mixedmark}.mat-checkbox-anim-indeterminate-unchecked .mat-checkbox-background{animation:180ms linear 0ms mat-checkbox-fade-out-background}.mat-checkbox-anim-indeterminate-unchecked .mat-checkbox-mixedmark{animation:300ms linear 0ms mat-checkbox-indeterminate-unchecked-mixedmark}.mat-checkbox-input{bottom:0;left:50%}.mat-checkbox .mat-checkbox-ripple{position:absolute;left:calc(50% - 20px);top:calc(50% - 20px);height:40px;width:40px;z-index:1;pointer-events:none}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc1.FocusMonitor }, { type: ɵngcc0.NgZone }, { type: String, decorators: [{\n                type: Attribute,\n                args: ['tabindex']\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_CHECKBOX_CLICK_ACTION]\n            }] }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_CHECKBOX_DEFAULT_OPTIONS]\n            }] }]; }, { ariaLabel: [{\n            type: Input,\n            args: ['aria-label']\n        }], ariaLabelledby: [{\n            type: Input,\n            args: ['aria-labelledby']\n        }], id: [{\n            type: Input\n        }], labelPosition: [{\n            type: Input\n        }], name: [{\n            type: Input\n        }], change: [{\n            type: Output\n        }], indeterminateChange: [{\n            type: Output\n        }], required: [{\n            type: Input\n        }], checked: [{\n            type: Input\n        }], disabled: [{\n            type: Input\n        }], indeterminate: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }], _inputElement: [{\n            type: ViewChild,\n            args: ['input']\n        }], ripple: [{\n            type: ViewChild,\n            args: [MatRipple]\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatCheckbox.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatCheckbox.ngAcceptInputType_required;\n    /** @type {?} */\n    MatCheckbox.ngAcceptInputType_disableRipple;\n    /** @type {?} */\n    MatCheckbox.ngAcceptInputType_indeterminate;\n    /**\n     * Attached to the aria-label attribute of the host element. In most cases, aria-labelledby will\n     * take precedence so this may be omitted.\n     * @type {?}\n     */\n    MatCheckbox.prototype.ariaLabel;\n    /**\n     * Users can specify the `aria-labelledby` attribute which will be forwarded to the input element\n     * @type {?}\n     */\n    MatCheckbox.prototype.ariaLabelledby;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._uniqueId;\n    /**\n     * A unique id for the checkbox input. If none is supplied, it will be auto-generated.\n     * @type {?}\n     */\n    MatCheckbox.prototype.id;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._required;\n    /**\n     * Whether the label should appear after or before the checkbox. Defaults to 'after'\n     * @type {?}\n     */\n    MatCheckbox.prototype.labelPosition;\n    /**\n     * Name value will be applied to the input element if present\n     * @type {?}\n     */\n    MatCheckbox.prototype.name;\n    /**\n     * Event emitted when the checkbox's `checked` value changes.\n     * @type {?}\n     */\n    MatCheckbox.prototype.change;\n    /**\n     * Event emitted when the checkbox's `indeterminate` value changes.\n     * @type {?}\n     */\n    MatCheckbox.prototype.indeterminateChange;\n    /**\n     * The value attribute of the native input element\n     * @type {?}\n     */\n    MatCheckbox.prototype.value;\n    /**\n     * The native `<input type=\"checkbox\">` element\n     * @type {?}\n     */\n    MatCheckbox.prototype._inputElement;\n    /**\n     * Reference to the ripple instance of the checkbox.\n     * @type {?}\n     */\n    MatCheckbox.prototype.ripple;\n    /**\n     * Called when the checkbox is blurred. Needed to properly implement ControlValueAccessor.\n     * \\@docs-private\n     * @type {?}\n     */\n    MatCheckbox.prototype._onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._currentAnimationClass;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._currentCheckState;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._controlValueAccessorChangeFn;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._checked;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._indeterminate;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._focusMonitor;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._ngZone;\n    /**\n     * @deprecated `_clickAction` parameter to be removed, use\n     * `MAT_CHECKBOX_DEFAULT_OPTIONS`\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._clickAction;\n    /** @type {?} */\n    MatCheckbox.prototype._animationMode;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatCheckbox.prototype._options;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/checkbox/checkbox-required-validator.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst MAT_CHECKBOX_REQUIRED_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MatCheckboxRequiredValidator)),\n    multi: true\n};\n/**\n * Validator for Material checkbox's required attribute in template-driven checkbox.\n * Current CheckboxRequiredValidator only work with `input type=checkbox` and does not\n * work with `mat-checkbox`.\n */\nclass MatCheckboxRequiredValidator extends CheckboxRequiredValidator {\n}\nMatCheckboxRequiredValidator.ɵfac = function MatCheckboxRequiredValidator_Factory(t) { return ɵMatCheckboxRequiredValidator_BaseFactory(t || MatCheckboxRequiredValidator); };\nMatCheckboxRequiredValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatCheckboxRequiredValidator, selectors: [[\"mat-checkbox\", \"required\", \"\", \"formControlName\", \"\"], [\"mat-checkbox\", \"required\", \"\", \"formControl\", \"\"], [\"mat-checkbox\", \"required\", \"\", \"ngModel\", \"\"]], features: [ɵngcc0.ɵɵProvidersFeature([MAT_CHECKBOX_REQUIRED_VALIDATOR]), ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵMatCheckboxRequiredValidator_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(MatCheckboxRequiredValidator);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatCheckboxRequiredValidator, [{\n        type: Directive,\n        args: [{\n                selector: `mat-checkbox[required][formControlName],\n             mat-checkbox[required][formControl], mat-checkbox[required][ngModel]`,\n                providers: [MAT_CHECKBOX_REQUIRED_VALIDATOR]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/checkbox/checkbox-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This module is used by both original and MDC-based checkbox implementations.\n */\n// tslint:disable-next-line:class-name\nclass _MatCheckboxRequiredValidatorModule {\n}\n_MatCheckboxRequiredValidatorModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: _MatCheckboxRequiredValidatorModule });\n_MatCheckboxRequiredValidatorModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function _MatCheckboxRequiredValidatorModule_Factory(t) { return new (t || _MatCheckboxRequiredValidatorModule)(); } });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(_MatCheckboxRequiredValidatorModule, { declarations: [MatCheckboxRequiredValidator], exports: [MatCheckboxRequiredValidator] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(_MatCheckboxRequiredValidatorModule, [{\n        type: NgModule,\n        args: [{\n                exports: [MatCheckboxRequiredValidator],\n                declarations: [MatCheckboxRequiredValidator]\n            }]\n    }], null, null); })();\nclass MatCheckboxModule {\n}\nMatCheckboxModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatCheckboxModule });\nMatCheckboxModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatCheckboxModule_Factory(t) { return new (t || MatCheckboxModule)(); }, imports: [[\n            MatRippleModule, MatCommonModule, ObserversModule,\n            _MatCheckboxRequiredValidatorModule\n        ], MatCommonModule, _MatCheckboxRequiredValidatorModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatCheckboxModule, { declarations: function () { return [MatCheckbox]; }, imports: function () { return [MatRippleModule, MatCommonModule, ObserversModule, _MatCheckboxRequiredValidatorModule]; }, exports: function () { return [MatCheckbox, MatCommonModule, _MatCheckboxRequiredValidatorModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatCheckboxModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    MatRippleModule, MatCommonModule, ObserversModule,\n                    _MatCheckboxRequiredValidatorModule\n                ],\n                exports: [MatCheckbox, MatCommonModule, _MatCheckboxRequiredValidatorModule],\n                declarations: [MatCheckbox]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/checkbox/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_CHECKBOX_CLICK_ACTION, MAT_CHECKBOX_CONTROL_VALUE_ACCESSOR, MAT_CHECKBOX_DEFAULT_OPTIONS, MAT_CHECKBOX_DEFAULT_OPTIONS_FACTORY, MAT_CHECKBOX_REQUIRED_VALIDATOR, MatCheckbox, MatCheckboxChange, MatCheckboxModule, MatCheckboxRequiredValidator, _MatCheckboxRequiredValidatorModule };\n\n//# sourceMappingURL=checkbox.js.map","<form class=\"tool-panel-content\" (ngSubmit)=\"applyChanges()\" [formGroup]=\"resizeForm\" ngNativeValidate>\n    <div class=\"size-inputs-container\">\n        <div class=\"input-container\">\n            <label for=\"width\" trans>Width</label>\n            <input class=\"size-input\" type=\"number\" id=\"width\" name=\"width\" formControlName=\"width\" [min]=\"minWidth()\" [max]=\"maxWidth()\" required>\n        </div>\n\n        <div class=\"input-container\">\n            <label for=\"height\" trans>Height</label>\n            <input class=\"size-input\" type=\"number\" id=\"height\" name=\"height\" formControlName=\"height\" [min]=\"minHeight()\" [max]=\"maxHeight()\" required>\n        </div>\n    </div>\n\n    <!--This can't be first or last child, as it will mess up margin: auto positioning-->\n    <button type=\"submit\" class=\"hidden\"></button>\n\n    <div class=\"checkbox-container\">\n        <mat-checkbox class=\"aspect-ratio-checkbox\" formControlName=\"maintainAspectRatio\" trans>Maintain Aspect Ratio</mat-checkbox>\n        <mat-checkbox  class=\"percentages-checkbox\" formControlName=\"usePercentages\" trans>Use Percentages</mat-checkbox>\n    </div>\n</form>\n","<div class=\"tool-panel-content\">\n    <div class=\"buttons-container\">\n        <button class=\"rotate-button button-with-image small\" (click)=\"rotateLeft()\">\n            <mat-icon svgIcon=\"rotate-left\"></mat-icon>\n        </button>\n\n        <button class=\"rotate-button button-with-image small\" (click)=\"rotateRight()\">\n            <mat-icon svgIcon=\"rotate-right\"></mat-icon>\n        </button>\n    </div>\n\n    <div class=\"buttons-container\">\n        <button class=\"rotate-button button-with-image small\" (click)=\"flipVertical()\">\n            <mat-icon svgIcon=\"flip-vertical-custom\"></mat-icon>\n        </button>\n\n        <button class=\"rotate-button button-with-image small\" (click)=\"flipHorizontal()\">\n            <mat-icon svgIcon=\"flip-horizontal-custom\"></mat-icon>\n        </button>\n    </div>\n\n    <mat-slider [min]=\"0\" [max]=\"360\" (input)=\"skew($event)\" (change)=\"markAsDirty()\"></mat-slider>\n</div>\n","<div class=\"tool-panel-content\">\n    <div class=\"aspect-ratios\">\n        <div class=\"custom-ratio-container\" *ngIf=\"!this.config.get('pixie.tools.crop.hideCustomControls')\">\n            <div class=\"inputs\">\n                <div class=\"input-container\">\n                    <label for=\"width\" trans>Width</label>\n                    <input type=\"number\" id=\"width\" [(ngModel)]=\"cropzoneWidth\" (ngModelChange)=\"resizeCropzone()\" min=\"1\" [max]=\"canvasState.original.width\">\n                </div>\n\n                <div class=\"input-container\">\n                    <label for=\"height\" trans>Height</label>\n                    <input type=\"number\" id=\"height\" [(ngModel)]=\"cropzoneHeight\" (ngModelChange)=\"resizeCropzone()\" min=\"1\" [max]=\"canvasState.original.height\">\n                </div>\n            </div>\n        </div>\n        <div class=\"aspect-ratio\" *ngFor=\"let preset of presets\" [class.selected]=\"cropZone.aspectRatio === preset.ratio\" (click)=\"applyAspectRatio(preset.ratio)\">\n            <div class=\"preview\" #ratioPreview [attr.data-ratio]=\"preset.ratio\"></div>\n            <div class=\"name\" trans>{{preset.name}}</div>\n        </div>\n    </div>\n</div>\n","import {\n    AfterViewInit,\n    ChangeDetectionStrategy, ChangeDetectorRef,\n    Component,\n    ElementRef,\n    OnDestroy,\n    OnInit,\n    QueryList,\n    ViewChildren,\n    ViewEncapsulation\n} from '@angular/core';\nimport {Settings} from '@common/core/config/settings.service';\nimport {CropZoneService} from '../../../../image-editor/tools/crop/crop-zone.service';\nimport {CanvasStateService} from '../../../../image-editor/canvas/canvas-state.service';\nimport {Subscription} from 'rxjs';\n\n@Component({\n    selector: 'crop-drawer',\n    templateUrl: './crop-drawer.component.html',\n    styleUrls: ['./crop-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class CropDrawerComponent implements AfterViewInit, OnInit, OnDestroy {\n    @ViewChildren('ratioPreview') ratioPreviews: QueryList<ElementRef>;\n\n    public presets: {ratio: string, name: string}[];\n    public cropzoneHeight: number;\n    public cropzoneWidth: number;\n    private subscription: Subscription;\n\n    constructor(\n        public cropZone: CropZoneService,\n        public config: Settings,\n        public canvasState: CanvasStateService,\n        private cd: ChangeDetectorRef,\n    ) {\n        this.subscription = this.config.all$().subscribe(() => {\n            this.presets = this.config.get('pixie.tools.crop.presets');\n            this.cropZone.aspectRatio = this.config.get('pixie.tools.crop.defaultRatio');\n        });\n    }\n\n    ngAfterViewInit() {\n        this.ratioPreviews.forEach(el => {\n            const adjusted = this.cropZone.getAdjustedSize(el.nativeElement.dataset.ratio, 40, 30);\n            el.nativeElement.style.width = adjusted.width + 'px';\n            el.nativeElement.style.height = adjusted.height + 'px';\n        });\n    }\n\n    ngOnInit() {\n        this.cropZone.draw();\n        this.updateZoneSize();\n        this.cropZone.resize$.subscribe(() => this.updateZoneSize());\n    }\n\n    ngOnDestroy() {\n        this.cropZone.remove();\n        this.subscription.unsubscribe();\n    }\n\n    public applyAspectRatio(aspectRatio: string) {\n        this.cropZone.changeAspectRatio(aspectRatio);\n        this.updateZoneSize();\n    }\n\n    private updateZoneSize() {\n        const size = this.cropZone.getSize();\n        this.cropzoneHeight = Math.floor(size.height);\n        this.cropzoneWidth = Math.floor(size.width);\n        this.cd.markForCheck();\n    }\n\n    public resizeCropzone() {\n        this.cropZone.resize(this.cropzoneWidth || this.canvasState.original.width, this.cropzoneHeight);\n    }\n}\n","<div class=\"tool-panel-content main-content\" [class.hidden]=\"brushControlsOpen$ | async\">\n    <color-widget [(ngModel)]=\"drawTool.currentBrush.color\" (ngModelChange)=\"drawTool.setBrushColor($event)\" trans>Brush Color</color-widget>\n\n    <div class=\"brush-type-button-wrapper\">\n        <button mat-icon-button class=\"round-action-button\" [style.color]=\"drawTool.getBrushColor()\" (click)=\"openBrushControls()\">\n            <mat-icon svgIcon=\"pencil-custom\"></mat-icon>\n        </button>\n        <div class=\"bottom-label\" trans>Brush Type</div>\n    </div>\n\n    <div class=\"brush-sizes brush-controls\">\n        <div class=\"sizes controls\">\n            <button\n                    class=\"no-style size control\"\n                    (click)=\"drawTool.setBrushSize(size)\"\n                    *ngFor=\"let size of brushSizes$ | async\"\n                    [ngStyle]=\"{width: size+'px', height: size+'px'}\"\n                    [class.selected]=\"drawTool.getBrushSize() === size\"\n            ></button>\n        </div>\n        <div class=\"bottom-label\" trans>Brush Size</div>\n    </div>\n</div>\n\n<div class=\"tool-panel-content brush-types-content\" [class.hidden]=\"!(brushControlsOpen$ | async)\">\n    <button class=\"no-style button-with-image\" *ngFor=\"let type of brushTypes$ | async\" (click)=\"setBrushType(type)\" [class.selected]=\"drawTool.getBrushType() == type\">\n        <img [src]=\"getBrushPreviewUrl(type)\" alt=\"{{type}} brush preview\">\n    </button>\n</div>\n","import {ChangeDetectionStrategy, Component, OnDestroy, OnInit, ViewEncapsulation} from '@angular/core';\nimport {Settings} from '@common/core/config/settings.service';\nimport {DrawToolService} from '../../../../image-editor/tools/draw/draw-tool.service';\nimport {CanvasService} from '../../../../image-editor/canvas/canvas.service';\nimport {Select, Store} from '@ngxs/store';\nimport {DrawState} from '../../../state/draw/draw.state';\nimport {Observable, BehaviorSubject} from 'rxjs';\nimport {CloseBrushControls, MarkAsDirty, OpenBrushControls} from '../../../state/draw/draw.actions';\nimport {staticObjectConfig} from '../../../../image-editor/objects/static-object-config';\nimport {ObjectNames} from '../../../../image-editor/objects/object-names.enum';\nimport {ThemeService} from '@common/core/theme.service';\nimport {ObjectListService} from '../../../../image-editor/objects/object-list.service';\n\n@Component({\n    selector: 'draw-drawer',\n    templateUrl: './draw-drawer.component.html',\n    styleUrls: ['./draw-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class DrawDrawerComponent implements OnInit, OnDestroy {\n    @Select(DrawState.brushControlsOpen) brushControlsOpen$: Observable<boolean>;\n    public brushSizes$: BehaviorSubject<number[]> = new BehaviorSubject([]);\n    public brushTypes$: BehaviorSubject<string[]> = new BehaviorSubject([]);\n    private currentDrawings: string[] = [];\n\n    constructor(\n        public drawTool: DrawToolService,\n        private settings: Settings,\n        private canvas: CanvasService,\n        private config: Settings,\n        private store: Store,\n        private theme: ThemeService,\n        private objects: ObjectListService,\n    ) {\n        this.brushSizes$.next(this.config.get('pixie.tools.draw.brushSizes'));\n        this.brushTypes$.next(this.config.get('pixie.tools.draw.brushTypes'));\n    }\n\n    ngOnInit() {\n        this.drawTool.enable();\n        this.canvas.fabric().on('object:added', this.maybeMarkAsDirty.bind(this));\n        this.currentDrawings = this.getAllDrawings().map(obj => obj.data.id);\n    }\n\n    ngOnDestroy() {\n        this.drawTool.disable();\n        this.canvas.fabric().off('object:added', this.maybeMarkAsDirty.bind(this));\n    }\n\n    public getBrushPreviewUrl(type: string): string {\n        const name = type.replace('Brush', '').toLowerCase(),\n            dir = this.theme.selectedTheme$.value.is_dark ? 'white' : 'black';\n        return this.settings.getAssetUrl(`images/brushes/${dir}/${name}.png`, true);\n    }\n\n    public setBrushType(type: string) {\n        this.drawTool.setBrushType(type);\n        this.store.dispatch(new CloseBrushControls());\n    }\n\n    private maybeMarkAsDirty() {\n        const lastDrawing = this.getAllDrawings()\n            .find(obj => this.currentDrawings.indexOf(obj.data.id) === -1);\n\n        if (lastDrawing) {\n            this.store.dispatch(new MarkAsDirty());\n            lastDrawing.set({strokeWidth: lastDrawing.strokeWidth});\n            this.objects.syncObjects();\n            this.canvas.render();\n        }\n    }\n\n    public openBrushControls() {\n        this.store.dispatch(new OpenBrushControls());\n    }\n\n    private getAllDrawings() {\n        return this.canvas.fabric().getObjects()\n            .filter(obj => obj.name === ObjectNames.drawing.name);\n    }\n}\n","export enum FontCategory {\r\n    display = 'Display',\r\n    handwriting = 'Hand Writing',\r\n    monospace = 'Mono Space',\r\n    'sans-serif' = 'Sans Serif',\r\n    'serif' = 'Serif',\r\n}\r\n","import { ObserversModule } from '@angular/cdk/observers';\nimport { CommonModule } from '@angular/common';\nimport { Directive, Input, InjectionToken, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, ChangeDetectorRef, Optional, Inject, NgZone, ViewChild, ContentChild, ContentChildren, NgModule } from '@angular/core';\nimport { mixinColor, MAT_LABEL_GLOBAL_OPTIONS, MatCommonModule } from '@angular/material/core';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { Subject, merge, fromEvent } from 'rxjs';\nimport { startWith, takeUntil, take } from 'rxjs/operators';\nimport { trigger, state, style, transition, animate } from '@angular/animations';\nimport { Platform } from '@angular/cdk/platform';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/error.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/bidi';\nimport * as ɵngcc2 from '@angular/cdk/platform';\nimport * as ɵngcc3 from '@angular/common';\nimport * as ɵngcc4 from '@angular/cdk/observers';\n\nconst _c0 = [\"underline\"];\nconst _c1 = [\"connectionContainer\"];\nconst _c2 = [\"inputContainer\"];\nconst _c3 = [\"label\"];\nfunction MatFormField_ng_container_3_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementContainerStart(0);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 14);\n    ɵngcc0.ɵɵelement(2, \"div\", 15);\n    ɵngcc0.ɵɵelement(3, \"div\", 16);\n    ɵngcc0.ɵɵelement(4, \"div\", 17);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementStart(5, \"div\", 18);\n    ɵngcc0.ɵɵelement(6, \"div\", 15);\n    ɵngcc0.ɵɵelement(7, \"div\", 16);\n    ɵngcc0.ɵɵelement(8, \"div\", 17);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementContainerEnd();\n} }\nfunction MatFormField_div_4_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 19);\n    ɵngcc0.ɵɵprojection(1, 1);\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction MatFormField_label_9_ng_container_2_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementContainerStart(0);\n    ɵngcc0.ɵɵprojection(1, 2);\n    ɵngcc0.ɵɵelementStart(2, \"span\");\n    ɵngcc0.ɵɵtext(3);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementContainerEnd();\n} if (rf & 2) {\n    const ctx_r10 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵadvance(3);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r10._control.placeholder);\n} }\nfunction MatFormField_label_9_3_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵprojection(0, 3, [\"*ngSwitchCase\", \"true\"]);\n} }\nfunction MatFormField_label_9_span_4_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"span\", 23);\n    ɵngcc0.ɵɵtext(1, \" *\");\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction MatFormField_label_9_Template(rf, ctx) { if (rf & 1) {\n    const _r14 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"label\", 20, 21);\n    ɵngcc0.ɵɵlistener(\"cdkObserveContent\", function MatFormField_label_9_Template_label_cdkObserveContent_0_listener() { ɵngcc0.ɵɵrestoreView(_r14); const ctx_r13 = ɵngcc0.ɵɵnextContext(); return ctx_r13.updateOutlineGap(); });\n    ɵngcc0.ɵɵtemplate(2, MatFormField_label_9_ng_container_2_Template, 4, 1, \"ng-container\", 12);\n    ɵngcc0.ɵɵtemplate(3, MatFormField_label_9_3_Template, 1, 0, undefined, 12);\n    ɵngcc0.ɵɵtemplate(4, MatFormField_label_9_span_4_Template, 2, 0, \"span\", 22);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r4 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵclassProp(\"mat-empty\", ctx_r4._control.empty && !ctx_r4._shouldAlwaysFloat)(\"mat-form-field-empty\", ctx_r4._control.empty && !ctx_r4._shouldAlwaysFloat)(\"mat-accent\", ctx_r4.color == \"accent\")(\"mat-warn\", ctx_r4.color == \"warn\");\n    ɵngcc0.ɵɵproperty(\"cdkObserveContentDisabled\", ctx_r4.appearance != \"outline\")(\"id\", ctx_r4._labelId)(\"ngSwitch\", ctx_r4._hasLabel());\n    ɵngcc0.ɵɵattribute(\"for\", ctx_r4._control.id)(\"aria-owns\", ctx_r4._control.id);\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵproperty(\"ngSwitchCase\", false);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngSwitchCase\", true);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", !ctx_r4.hideRequiredMarker && ctx_r4._control.required && !ctx_r4._control.disabled);\n} }\nfunction MatFormField_div_10_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 24);\n    ɵngcc0.ɵɵprojection(1, 4);\n    ɵngcc0.ɵɵelementEnd();\n} }\nfunction MatFormField_div_11_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 25, 26);\n    ɵngcc0.ɵɵelement(2, \"span\", 27);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r6 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵclassProp(\"mat-accent\", ctx_r6.color == \"accent\")(\"mat-warn\", ctx_r6.color == \"warn\");\n} }\nfunction MatFormField_div_13_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\");\n    ɵngcc0.ɵɵprojection(1, 5);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r7 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"@transitionMessages\", ctx_r7._subscriptAnimationState);\n} }\nfunction MatFormField_div_14_div_1_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 31);\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r16 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵproperty(\"id\", ctx_r16._hintLabelId);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r16.hintLabel);\n} }\nfunction MatFormField_div_14_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 28);\n    ɵngcc0.ɵɵtemplate(1, MatFormField_div_14_div_1_Template, 2, 2, \"div\", 29);\n    ɵngcc0.ɵɵprojection(2, 6);\n    ɵngcc0.ɵɵelement(3, \"div\", 30);\n    ɵngcc0.ɵɵprojection(4, 7);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r8 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"@transitionMessages\", ctx_r8._subscriptAnimationState);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r8.hintLabel);\n} }\nconst _c4 = [\"*\", [[\"\", \"matPrefix\", \"\"]], [[\"mat-placeholder\"]], [[\"mat-label\"]], [[\"\", \"matSuffix\", \"\"]], [[\"mat-error\"]], [[\"mat-hint\", 3, \"align\", \"end\"]], [[\"mat-hint\", \"align\", \"end\"]]];\nconst _c5 = [\"*\", \"[matPrefix]\", \"mat-placeholder\", \"mat-label\", \"[matSuffix]\", \"mat-error\", \"mat-hint:not([align='end'])\", \"mat-hint[align='end']\"];\nlet nextUniqueId = 0;\n/**\n * Single error message to be shown underneath the form field.\n */\nclass MatError {\n    constructor() {\n        this.id = `mat-error-${nextUniqueId++}`;\n    }\n}\nMatError.ɵfac = function MatError_Factory(t) { return new (t || MatError)(); };\nMatError.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatError, selectors: [[\"mat-error\"]], hostAttrs: [\"role\", \"alert\", 1, \"mat-error\"], hostVars: 1, hostBindings: function MatError_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"id\", ctx.id);\n    } }, inputs: { id: \"id\" } });\nMatError.propDecorators = {\n    id: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatError, [{\n        type: Directive,\n        args: [{\n                selector: 'mat-error',\n                host: {\n                    'class': 'mat-error',\n                    'role': 'alert',\n                    '[attr.id]': 'id'\n                }\n            }]\n    }], function () { return []; }, { id: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatError.prototype.id;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/form-field-animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Animations used by the MatFormField.\n * \\@docs-private\n * @type {?}\n */\nconst matFormFieldAnimations = {\n    /**\n     * Animation that transitions the form field's error and hint messages.\n     */\n    transitionMessages: trigger('transitionMessages', [\n        // TODO(mmalerba): Use angular animations for label animation as well.\n        state('enter', style({ opacity: 1, transform: 'translateY(0%)' })),\n        transition('void => enter', [\n            style({ opacity: 0, transform: 'translateY(-100%)' }),\n            animate('300ms cubic-bezier(0.55, 0, 0.55, 0.2)'),\n        ]),\n    ])\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/form-field-control.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * An interface which allows a control to work inside of a `MatFormField`.\n * @abstract\n * @template T\n */\nclass MatFormFieldControl {\n}\nMatFormFieldControl.ɵfac = function MatFormFieldControl_Factory(t) { return new (t || MatFormFieldControl)(); };\nMatFormFieldControl.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatFormFieldControl });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatFormFieldControl, [{\n        type: Directive\n    }], null, null); })();\nif (false) {\n    /**\n     * The value of the control.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.value;\n    /**\n     * Stream that emits whenever the state of the control changes such that the parent `MatFormField`\n     * needs to run change detection.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.stateChanges;\n    /**\n     * The element ID for this control.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.id;\n    /**\n     * The placeholder for this control.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.placeholder;\n    /**\n     * Gets the NgControl for this control.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.ngControl;\n    /**\n     * Whether the control is focused.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.focused;\n    /**\n     * Whether the control is empty.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.empty;\n    /**\n     * Whether the `MatFormField` label should try to float.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.shouldLabelFloat;\n    /**\n     * Whether the control is required.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.required;\n    /**\n     * Whether the control is disabled.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.disabled;\n    /**\n     * Whether the control is in an error state.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.errorState;\n    /**\n     * An optional name for the control type that can be used to distinguish `mat-form-field` elements\n     * based on their control type. The form field will add a class,\n     * `mat-form-field-type-{{controlType}}` to its root element.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.controlType;\n    /**\n     * Whether the input is currently in an autofilled state. If property is not present on the\n     * control it is assumed to be false.\n     * @type {?}\n     */\n    MatFormFieldControl.prototype.autofilled;\n    /**\n     * Sets the list of element IDs that currently describe this control.\n     * @abstract\n     * @param {?} ids\n     * @return {?}\n     */\n    MatFormFieldControl.prototype.setDescribedByIds = function (ids) { };\n    /**\n     * Handles a click on the control's container.\n     * @abstract\n     * @param {?} event\n     * @return {?}\n     */\n    MatFormFieldControl.prototype.onContainerClick = function (event) { };\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/form-field-errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction getMatFormFieldPlaceholderConflictError() {\n    return Error('Placeholder attribute and child element were both specified.');\n}\n/**\n * \\@docs-private\n * @param {?} align\n * @return {?}\n */\nfunction getMatFormFieldDuplicatedHintError(align) {\n    return Error(`A hint was already declared for 'align=\"${align}\"'.`);\n}\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction getMatFormFieldMissingControlError() {\n    return Error('mat-form-field must contain a MatFormFieldControl.');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/hint.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nlet nextUniqueId$1 = 0;\n/**\n * Hint text to be shown underneath the form field control.\n */\nclass MatHint {\n    constructor() {\n        /**\n         * Whether to align the hint label at the start or end of the line.\n         */\n        this.align = 'start';\n        /**\n         * Unique ID for the hint. Used for the aria-describedby on the form field control.\n         */\n        this.id = `mat-hint-${nextUniqueId$1++}`;\n    }\n}\nMatHint.ɵfac = function MatHint_Factory(t) { return new (t || MatHint)(); };\nMatHint.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatHint, selectors: [[\"mat-hint\"]], hostAttrs: [1, \"mat-hint\"], hostVars: 4, hostBindings: function MatHint_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"id\", ctx.id)(\"align\", null);\n        ɵngcc0.ɵɵclassProp(\"mat-right\", ctx.align == \"end\");\n    } }, inputs: { align: \"align\", id: \"id\" } });\nMatHint.propDecorators = {\n    align: [{ type: Input }],\n    id: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatHint, [{\n        type: Directive,\n        args: [{\n                selector: 'mat-hint',\n                host: {\n                    'class': 'mat-hint',\n                    '[class.mat-right]': 'align == \"end\"',\n                    '[attr.id]': 'id',\n                    // Remove align attribute to prevent it from interfering with layout.\n                    '[attr.align]': 'null'\n                }\n            }]\n    }], function () { return []; }, { align: [{\n            type: Input\n        }], id: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /**\n     * Whether to align the hint label at the start or end of the line.\n     * @type {?}\n     */\n    MatHint.prototype.align;\n    /**\n     * Unique ID for the hint. Used for the aria-describedby on the form field control.\n     * @type {?}\n     */\n    MatHint.prototype.id;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/label.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The floating label for a `mat-form-field`.\n */\nclass MatLabel {\n}\nMatLabel.ɵfac = function MatLabel_Factory(t) { return new (t || MatLabel)(); };\nMatLabel.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatLabel, selectors: [[\"mat-label\"]] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatLabel, [{\n        type: Directive,\n        args: [{\n                selector: 'mat-label'\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/placeholder.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The placeholder text for an `MatFormField`.\n * @deprecated Use `<mat-label>` to specify the label and the `placeholder` attribute to specify the\n *     placeholder.\n * \\@breaking-change 8.0.0\n */\nclass MatPlaceholder {\n}\nMatPlaceholder.ɵfac = function MatPlaceholder_Factory(t) { return new (t || MatPlaceholder)(); };\nMatPlaceholder.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatPlaceholder, selectors: [[\"mat-placeholder\"]] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatPlaceholder, [{\n        type: Directive,\n        args: [{\n                selector: 'mat-placeholder'\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/prefix.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Prefix to be placed in front of the form field.\n */\nclass MatPrefix {\n}\nMatPrefix.ɵfac = function MatPrefix_Factory(t) { return new (t || MatPrefix)(); };\nMatPrefix.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatPrefix, selectors: [[\"\", \"matPrefix\", \"\"]] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatPrefix, [{\n        type: Directive,\n        args: [{\n                selector: '[matPrefix]'\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/suffix.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Suffix to be placed at the end of the form field.\n */\nclass MatSuffix {\n}\nMatSuffix.ɵfac = function MatSuffix_Factory(t) { return new (t || MatSuffix)(); };\nMatSuffix.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatSuffix, selectors: [[\"\", \"matSuffix\", \"\"]] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSuffix, [{\n        type: Directive,\n        args: [{\n                selector: '[matSuffix]'\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/form-field.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nlet nextUniqueId$2 = 0;\n/** @type {?} */\nconst floatingLabelScale = 0.75;\n/** @type {?} */\nconst outlineGapPadding = 5;\n/**\n * Boilerplate for applying mixins to MatFormField.\n * \\@docs-private\n */\nclass MatFormFieldBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatFormFieldBase.prototype._elementRef;\n}\n/**\n * Base class to which we're applying the form field mixins.\n * \\@docs-private\n * @type {?}\n */\nconst _MatFormFieldMixinBase = mixinColor(MatFormFieldBase, 'primary');\n/**\n * Represents the default options for the form field that can be configured\n * using the `MAT_FORM_FIELD_DEFAULT_OPTIONS` injection token.\n * @record\n */\nfunction MatFormFieldDefaultOptions() { }\nif (false) {\n    /** @type {?|undefined} */\n    MatFormFieldDefaultOptions.prototype.appearance;\n    /** @type {?|undefined} */\n    MatFormFieldDefaultOptions.prototype.hideRequiredMarker;\n    /**\n     * Whether the label for form-fields should by default float `always`,\n     * `never`, or `auto` (only when necessary).\n     * @type {?|undefined}\n     */\n    MatFormFieldDefaultOptions.prototype.floatLabel;\n}\n/**\n * Injection token that can be used to configure the\n * default options for all form field within an app.\n * @type {?}\n */\nconst MAT_FORM_FIELD_DEFAULT_OPTIONS = new InjectionToken('MAT_FORM_FIELD_DEFAULT_OPTIONS');\n/**\n * Injection token that can be used to inject an instances of `MatFormField`. It serves\n * as alternative token to the actual `MatFormField` class which would cause unnecessary\n * retention of the `MatFormField` class and its component metadata.\n * @type {?}\n */\nconst MAT_FORM_FIELD = new InjectionToken('MatFormField');\n/**\n * Container for form controls that applies Material Design styling and behavior.\n */\nclass MatFormField extends _MatFormFieldMixinBase {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _changeDetectorRef\n     * @param {?} labelOptions\n     * @param {?} _dir\n     * @param {?} _defaults\n     * @param {?} _platform\n     * @param {?} _ngZone\n     * @param {?} _animationMode\n     */\n    constructor(_elementRef, _changeDetectorRef, labelOptions, _dir, _defaults, _platform, _ngZone, _animationMode) {\n        super(_elementRef);\n        this._elementRef = _elementRef;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._dir = _dir;\n        this._defaults = _defaults;\n        this._platform = _platform;\n        this._ngZone = _ngZone;\n        /**\n         * Whether the outline gap needs to be calculated\n         * immediately on the next change detection run.\n         */\n        this._outlineGapCalculationNeededImmediately = false;\n        /**\n         * Whether the outline gap needs to be calculated next time the zone has stabilized.\n         */\n        this._outlineGapCalculationNeededOnStable = false;\n        this._destroyed = new Subject();\n        /**\n         * Override for the logic that disables the label animation in certain cases.\n         */\n        this._showAlwaysAnimate = false;\n        /**\n         * State of the mat-hint and mat-error animations.\n         */\n        this._subscriptAnimationState = '';\n        this._hintLabel = '';\n        // Unique id for the hint label.\n        this._hintLabelId = `mat-hint-${nextUniqueId$2++}`;\n        // Unique id for the internal form field label.\n        this._labelId = `mat-form-field-label-${nextUniqueId$2++}`;\n        this._labelOptions = labelOptions ? labelOptions : {};\n        this.floatLabel = this._getDefaultFloatLabelState();\n        this._animationsEnabled = _animationMode !== 'NoopAnimations';\n        // Set the default through here so we invoke the setter on the first run.\n        this.appearance = (_defaults && _defaults.appearance) ? _defaults.appearance : 'legacy';\n        this._hideRequiredMarker = (_defaults && _defaults.hideRequiredMarker != null) ?\n            _defaults.hideRequiredMarker : false;\n    }\n    /**\n     * The form-field appearance style.\n     * @return {?}\n     */\n    get appearance() { return this._appearance; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set appearance(value) {\n        /** @type {?} */\n        const oldValue = this._appearance;\n        this._appearance = value || (this._defaults && this._defaults.appearance) || 'legacy';\n        if (this._appearance === 'outline' && oldValue !== value) {\n            this._outlineGapCalculationNeededOnStable = true;\n        }\n    }\n    /**\n     * Whether the required marker should be hidden.\n     * @return {?}\n     */\n    get hideRequiredMarker() { return this._hideRequiredMarker; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set hideRequiredMarker(value) {\n        this._hideRequiredMarker = coerceBooleanProperty(value);\n    }\n    /**\n     * Whether the floating label should always float or not.\n     * @return {?}\n     */\n    get _shouldAlwaysFloat() {\n        return this.floatLabel === 'always' && !this._showAlwaysAnimate;\n    }\n    /**\n     * Whether the label can float or not.\n     * @return {?}\n     */\n    get _canLabelFloat() { return this.floatLabel !== 'never'; }\n    /**\n     * Text for the form field hint.\n     * @return {?}\n     */\n    get hintLabel() { return this._hintLabel; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set hintLabel(value) {\n        this._hintLabel = value;\n        this._processHints();\n    }\n    /**\n     * Whether the label should always float, never float or float as the user types.\n     *\n     * Note: only the legacy appearance supports the `never` option. `never` was originally added as a\n     * way to make the floating label emulate the behavior of a standard input placeholder. However\n     * the form field now supports both floating labels and placeholders. Therefore in the non-legacy\n     * appearances the `never` option has been disabled in favor of just using the placeholder.\n     * @return {?}\n     */\n    get floatLabel() {\n        return this.appearance !== 'legacy' && this._floatLabel === 'never' ? 'auto' : this._floatLabel;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set floatLabel(value) {\n        if (value !== this._floatLabel) {\n            this._floatLabel = value || this._getDefaultFloatLabelState();\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    get _control() {\n        // TODO(crisbeto): we need this workaround in order to support both Ivy and ViewEngine.\n        //  We should clean this up once Ivy is the default renderer.\n        return this._explicitFormFieldControl || this._controlNonStatic || this._controlStatic;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set _control(value) {\n        this._explicitFormFieldControl = value;\n    }\n    /**\n     * @return {?}\n     */\n    get _labelChild() {\n        return this._labelChildNonStatic || this._labelChildStatic;\n    }\n    /**\n     * Gets an ElementRef for the element that a overlay attached to the form-field should be\n     * positioned relative to.\n     * @return {?}\n     */\n    getConnectedOverlayOrigin() {\n        return this._connectionContainerRef || this._elementRef;\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this._validateControlChild();\n        /** @type {?} */\n        const control = this._control;\n        if (control.controlType) {\n            this._elementRef.nativeElement.classList.add(`mat-form-field-type-${control.controlType}`);\n        }\n        // Subscribe to changes in the child control state in order to update the form field UI.\n        control.stateChanges.pipe(startWith((/** @type {?} */ (null)))).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._validatePlaceholders();\n            this._syncDescribedByIds();\n            this._changeDetectorRef.markForCheck();\n        }));\n        // Run change detection if the value changes.\n        if (control.ngControl && control.ngControl.valueChanges) {\n            control.ngControl.valueChanges\n                .pipe(takeUntil(this._destroyed))\n                .subscribe((/**\n             * @return {?}\n             */\n            () => this._changeDetectorRef.markForCheck()));\n        }\n        // Note that we have to run outside of the `NgZone` explicitly,\n        // in order to avoid throwing users into an infinite loop\n        // if `zone-patch-rxjs` is included.\n        this._ngZone.runOutsideAngular((/**\n         * @return {?}\n         */\n        () => {\n            this._ngZone.onStable.asObservable().pipe(takeUntil(this._destroyed)).subscribe((/**\n             * @return {?}\n             */\n            () => {\n                if (this._outlineGapCalculationNeededOnStable) {\n                    this.updateOutlineGap();\n                }\n            }));\n        }));\n        // Run change detection and update the outline if the suffix or prefix changes.\n        merge(this._prefixChildren.changes, this._suffixChildren.changes).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._outlineGapCalculationNeededOnStable = true;\n            this._changeDetectorRef.markForCheck();\n        }));\n        // Re-validate when the number of hints changes.\n        this._hintChildren.changes.pipe(startWith(null)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._processHints();\n            this._changeDetectorRef.markForCheck();\n        }));\n        // Update the aria-described by when the number of errors changes.\n        this._errorChildren.changes.pipe(startWith(null)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._syncDescribedByIds();\n            this._changeDetectorRef.markForCheck();\n        }));\n        if (this._dir) {\n            this._dir.change.pipe(takeUntil(this._destroyed)).subscribe((/**\n             * @return {?}\n             */\n            () => {\n                if (typeof requestAnimationFrame === 'function') {\n                    this._ngZone.runOutsideAngular((/**\n                     * @return {?}\n                     */\n                    () => {\n                        requestAnimationFrame((/**\n                         * @return {?}\n                         */\n                        () => this.updateOutlineGap()));\n                    }));\n                }\n                else {\n                    this.updateOutlineGap();\n                }\n            }));\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentChecked() {\n        this._validateControlChild();\n        if (this._outlineGapCalculationNeededImmediately) {\n            this.updateOutlineGap();\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterViewInit() {\n        // Avoid animations on load.\n        this._subscriptAnimationState = 'enter';\n        this._changeDetectorRef.detectChanges();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._destroyed.next();\n        this._destroyed.complete();\n    }\n    /**\n     * Determines whether a class from the NgControl should be forwarded to the host element.\n     * @param {?} prop\n     * @return {?}\n     */\n    _shouldForward(prop) {\n        /** @type {?} */\n        const ngControl = this._control ? this._control.ngControl : null;\n        return ngControl && ngControl[prop];\n    }\n    /**\n     * @return {?}\n     */\n    _hasPlaceholder() {\n        return !!(this._control && this._control.placeholder || this._placeholderChild);\n    }\n    /**\n     * @return {?}\n     */\n    _hasLabel() {\n        return !!this._labelChild;\n    }\n    /**\n     * @return {?}\n     */\n    _shouldLabelFloat() {\n        return this._canLabelFloat && (this._control.shouldLabelFloat || this._shouldAlwaysFloat);\n    }\n    /**\n     * @return {?}\n     */\n    _hideControlPlaceholder() {\n        // In the legacy appearance the placeholder is promoted to a label if no label is given.\n        return this.appearance === 'legacy' && !this._hasLabel() ||\n            this._hasLabel() && !this._shouldLabelFloat();\n    }\n    /**\n     * @return {?}\n     */\n    _hasFloatingLabel() {\n        // In the legacy appearance the placeholder is promoted to a label if no label is given.\n        return this._hasLabel() || this.appearance === 'legacy' && this._hasPlaceholder();\n    }\n    /**\n     * Determines whether to display hints or errors.\n     * @return {?}\n     */\n    _getDisplayedMessages() {\n        return (this._errorChildren && this._errorChildren.length > 0 &&\n            this._control.errorState) ? 'error' : 'hint';\n    }\n    /**\n     * Animates the placeholder up and locks it in position.\n     * @return {?}\n     */\n    _animateAndLockLabel() {\n        if (this._hasFloatingLabel() && this._canLabelFloat) {\n            // If animations are disabled, we shouldn't go in here,\n            // because the `transitionend` will never fire.\n            if (this._animationsEnabled && this._label) {\n                this._showAlwaysAnimate = true;\n                fromEvent(this._label.nativeElement, 'transitionend').pipe(take(1)).subscribe((/**\n                 * @return {?}\n                 */\n                () => {\n                    this._showAlwaysAnimate = false;\n                }));\n            }\n            this.floatLabel = 'always';\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * Ensure that there is only one placeholder (either `placeholder` attribute on the child control\n     * or child element with the `mat-placeholder` directive).\n     * @private\n     * @return {?}\n     */\n    _validatePlaceholders() {\n        if (this._control.placeholder && this._placeholderChild) {\n            throw getMatFormFieldPlaceholderConflictError();\n        }\n    }\n    /**\n     * Does any extra processing that is required when handling the hints.\n     * @private\n     * @return {?}\n     */\n    _processHints() {\n        this._validateHints();\n        this._syncDescribedByIds();\n    }\n    /**\n     * Ensure that there is a maximum of one of each `<mat-hint>` alignment specified, with the\n     * attribute being considered as `align=\"start\"`.\n     * @private\n     * @return {?}\n     */\n    _validateHints() {\n        if (this._hintChildren) {\n            /** @type {?} */\n            let startHint;\n            /** @type {?} */\n            let endHint;\n            this._hintChildren.forEach((/**\n             * @param {?} hint\n             * @return {?}\n             */\n            (hint) => {\n                if (hint.align === 'start') {\n                    if (startHint || this.hintLabel) {\n                        throw getMatFormFieldDuplicatedHintError('start');\n                    }\n                    startHint = hint;\n                }\n                else if (hint.align === 'end') {\n                    if (endHint) {\n                        throw getMatFormFieldDuplicatedHintError('end');\n                    }\n                    endHint = hint;\n                }\n            }));\n        }\n    }\n    /**\n     * Gets the default float label state.\n     * @private\n     * @return {?}\n     */\n    _getDefaultFloatLabelState() {\n        return (this._defaults && this._defaults.floatLabel) || this._labelOptions.float || 'auto';\n    }\n    /**\n     * Sets the list of element IDs that describe the child control. This allows the control to update\n     * its `aria-describedby` attribute accordingly.\n     * @private\n     * @return {?}\n     */\n    _syncDescribedByIds() {\n        if (this._control) {\n            /** @type {?} */\n            let ids = [];\n            if (this._getDisplayedMessages() === 'hint') {\n                /** @type {?} */\n                const startHint = this._hintChildren ?\n                    this._hintChildren.find((/**\n                     * @param {?} hint\n                     * @return {?}\n                     */\n                    hint => hint.align === 'start')) : null;\n                /** @type {?} */\n                const endHint = this._hintChildren ?\n                    this._hintChildren.find((/**\n                     * @param {?} hint\n                     * @return {?}\n                     */\n                    hint => hint.align === 'end')) : null;\n                if (startHint) {\n                    ids.push(startHint.id);\n                }\n                else if (this._hintLabel) {\n                    ids.push(this._hintLabelId);\n                }\n                if (endHint) {\n                    ids.push(endHint.id);\n                }\n            }\n            else if (this._errorChildren) {\n                ids = this._errorChildren.map((/**\n                 * @param {?} error\n                 * @return {?}\n                 */\n                error => error.id));\n            }\n            this._control.setDescribedByIds(ids);\n        }\n    }\n    /**\n     * Throws an error if the form field's control is missing.\n     * @protected\n     * @return {?}\n     */\n    _validateControlChild() {\n        if (!this._control) {\n            throw getMatFormFieldMissingControlError();\n        }\n    }\n    /**\n     * Updates the width and position of the gap in the outline. Only relevant for the outline\n     * appearance.\n     * @return {?}\n     */\n    updateOutlineGap() {\n        /** @type {?} */\n        const labelEl = this._label ? this._label.nativeElement : null;\n        if (this.appearance !== 'outline' || !labelEl || !labelEl.children.length ||\n            !labelEl.textContent.trim()) {\n            return;\n        }\n        if (!this._platform.isBrowser) {\n            // getBoundingClientRect isn't available on the server.\n            return;\n        }\n        // If the element is not present in the DOM, the outline gap will need to be calculated\n        // the next time it is checked and in the DOM.\n        if (!this._isAttachedToDOM()) {\n            this._outlineGapCalculationNeededImmediately = true;\n            return;\n        }\n        /** @type {?} */\n        let startWidth = 0;\n        /** @type {?} */\n        let gapWidth = 0;\n        /** @type {?} */\n        const container = this._connectionContainerRef.nativeElement;\n        /** @type {?} */\n        const startEls = container.querySelectorAll('.mat-form-field-outline-start');\n        /** @type {?} */\n        const gapEls = container.querySelectorAll('.mat-form-field-outline-gap');\n        if (this._label && this._label.nativeElement.children.length) {\n            /** @type {?} */\n            const containerRect = container.getBoundingClientRect();\n            // If the container's width and height are zero, it means that the element is\n            // invisible and we can't calculate the outline gap. Mark the element as needing\n            // to be checked the next time the zone stabilizes. We can't do this immediately\n            // on the next change detection, because even if the element becomes visible,\n            // the `ClientRect` won't be reclaculated immediately. We reset the\n            // `_outlineGapCalculationNeededImmediately` flag some we don't run the checks twice.\n            if (containerRect.width === 0 && containerRect.height === 0) {\n                this._outlineGapCalculationNeededOnStable = true;\n                this._outlineGapCalculationNeededImmediately = false;\n                return;\n            }\n            /** @type {?} */\n            const containerStart = this._getStartEnd(containerRect);\n            /** @type {?} */\n            const labelStart = this._getStartEnd(labelEl.children[0].getBoundingClientRect());\n            /** @type {?} */\n            let labelWidth = 0;\n            for (const child of labelEl.children) {\n                labelWidth += child.offsetWidth;\n            }\n            startWidth = Math.abs(labelStart - containerStart) - outlineGapPadding;\n            gapWidth = labelWidth > 0 ? labelWidth * floatingLabelScale + outlineGapPadding * 2 : 0;\n        }\n        for (let i = 0; i < startEls.length; i++) {\n            startEls[i].style.width = `${startWidth}px`;\n        }\n        for (let i = 0; i < gapEls.length; i++) {\n            gapEls[i].style.width = `${gapWidth}px`;\n        }\n        this._outlineGapCalculationNeededOnStable =\n            this._outlineGapCalculationNeededImmediately = false;\n    }\n    /**\n     * Gets the start end of the rect considering the current directionality.\n     * @private\n     * @param {?} rect\n     * @return {?}\n     */\n    _getStartEnd(rect) {\n        return (this._dir && this._dir.value === 'rtl') ? rect.right : rect.left;\n    }\n    /**\n     * Checks whether the form field is attached to the DOM.\n     * @private\n     * @return {?}\n     */\n    _isAttachedToDOM() {\n        /** @type {?} */\n        const element = this._elementRef.nativeElement;\n        if (element.getRootNode) {\n            /** @type {?} */\n            const rootNode = element.getRootNode();\n            // If the element is inside the DOM the root node will be either the document\n            // or the closest shadow root, otherwise it'll be the element itself.\n            return rootNode && rootNode !== element;\n        }\n        // Otherwise fall back to checking if it's in the document. This doesn't account for\n        // shadow DOM, however browser that support shadow DOM should support `getRootNode` as well.\n        return (/** @type {?} */ (document.documentElement)).contains(element);\n    }\n}\nMatFormField.ɵfac = function MatFormField_Factory(t) { return new (t || MatFormField)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(MAT_LABEL_GLOBAL_OPTIONS, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(MAT_FORM_FIELD_DEFAULT_OPTIONS, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Platform), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8)); };\nMatFormField.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatFormField, selectors: [[\"mat-form-field\"]], contentQueries: function MatFormField_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatFormFieldControl, true);\n        ɵngcc0.ɵɵstaticContentQuery(dirIndex, MatFormFieldControl, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatLabel, true);\n        ɵngcc0.ɵɵstaticContentQuery(dirIndex, MatLabel, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatPlaceholder, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatError, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatHint, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatPrefix, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatSuffix, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._controlNonStatic = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._controlStatic = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._labelChildNonStatic = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._labelChildStatic = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._placeholderChild = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._errorChildren = _t);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._hintChildren = _t);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._prefixChildren = _t);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._suffixChildren = _t);\n    } }, viewQuery: function MatFormField_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n        ɵngcc0.ɵɵstaticViewQuery(_c1, true);\n        ɵngcc0.ɵɵviewQuery(_c2, true);\n        ɵngcc0.ɵɵviewQuery(_c3, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.underlineRef = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._connectionContainerRef = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._inputContainerRef = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._label = _t.first);\n    } }, hostAttrs: [1, \"mat-form-field\"], hostVars: 44, hostBindings: function MatFormField_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵclassProp(\"mat-form-field-appearance-standard\", ctx.appearance == \"standard\")(\"mat-form-field-appearance-fill\", ctx.appearance == \"fill\")(\"mat-form-field-appearance-outline\", ctx.appearance == \"outline\")(\"mat-form-field-appearance-legacy\", ctx.appearance == \"legacy\")(\"mat-form-field-invalid\", ctx._control.errorState)(\"mat-form-field-can-float\", ctx._canLabelFloat)(\"mat-form-field-should-float\", ctx._shouldLabelFloat())(\"mat-form-field-has-label\", ctx._hasFloatingLabel())(\"mat-form-field-hide-placeholder\", ctx._hideControlPlaceholder())(\"mat-form-field-disabled\", ctx._control.disabled)(\"mat-form-field-autofilled\", ctx._control.autofilled)(\"mat-focused\", ctx._control.focused)(\"mat-accent\", ctx.color == \"accent\")(\"mat-warn\", ctx.color == \"warn\")(\"ng-untouched\", ctx._shouldForward(\"untouched\"))(\"ng-touched\", ctx._shouldForward(\"touched\"))(\"ng-pristine\", ctx._shouldForward(\"pristine\"))(\"ng-dirty\", ctx._shouldForward(\"dirty\"))(\"ng-valid\", ctx._shouldForward(\"valid\"))(\"ng-invalid\", ctx._shouldForward(\"invalid\"))(\"ng-pending\", ctx._shouldForward(\"pending\"))(\"_mat-animation-noopable\", !ctx._animationsEnabled);\n    } }, inputs: { color: \"color\", floatLabel: \"floatLabel\", appearance: \"appearance\", hideRequiredMarker: \"hideRequiredMarker\", hintLabel: \"hintLabel\" }, exportAs: [\"matFormField\"], features: [ɵngcc0.ɵɵProvidersFeature([\n            { provide: MAT_FORM_FIELD, useExisting: MatFormField },\n        ]), ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c5, decls: 15, vars: 8, consts: [[1, \"mat-form-field-wrapper\"], [1, \"mat-form-field-flex\", 3, \"click\"], [\"connectionContainer\", \"\"], [4, \"ngIf\"], [\"class\", \"mat-form-field-prefix\", 4, \"ngIf\"], [1, \"mat-form-field-infix\"], [\"inputContainer\", \"\"], [1, \"mat-form-field-label-wrapper\"], [\"class\", \"mat-form-field-label\", 3, \"cdkObserveContentDisabled\", \"id\", \"mat-empty\", \"mat-form-field-empty\", \"mat-accent\", \"mat-warn\", \"ngSwitch\", \"cdkObserveContent\", 4, \"ngIf\"], [\"class\", \"mat-form-field-suffix\", 4, \"ngIf\"], [\"class\", \"mat-form-field-underline\", 4, \"ngIf\"], [1, \"mat-form-field-subscript-wrapper\", 3, \"ngSwitch\"], [4, \"ngSwitchCase\"], [\"class\", \"mat-form-field-hint-wrapper\", 4, \"ngSwitchCase\"], [1, \"mat-form-field-outline\"], [1, \"mat-form-field-outline-start\"], [1, \"mat-form-field-outline-gap\"], [1, \"mat-form-field-outline-end\"], [1, \"mat-form-field-outline\", \"mat-form-field-outline-thick\"], [1, \"mat-form-field-prefix\"], [1, \"mat-form-field-label\", 3, \"cdkObserveContentDisabled\", \"id\", \"ngSwitch\", \"cdkObserveContent\"], [\"label\", \"\"], [\"class\", \"mat-placeholder-required mat-form-field-required-marker\", \"aria-hidden\", \"true\", 4, \"ngIf\"], [\"aria-hidden\", \"true\", 1, \"mat-placeholder-required\", \"mat-form-field-required-marker\"], [1, \"mat-form-field-suffix\"], [1, \"mat-form-field-underline\"], [\"underline\", \"\"], [1, \"mat-form-field-ripple\"], [1, \"mat-form-field-hint-wrapper\"], [\"class\", \"mat-hint\", 3, \"id\", 4, \"ngIf\"], [1, \"mat-form-field-hint-spacer\"], [1, \"mat-hint\", 3, \"id\"]], template: function MatFormField_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef(_c4);\n        ɵngcc0.ɵɵelementStart(0, \"div\", 0);\n        ɵngcc0.ɵɵelementStart(1, \"div\", 1, 2);\n        ɵngcc0.ɵɵlistener(\"click\", function MatFormField_Template_div_click_1_listener($event) { return ctx._control.onContainerClick && ctx._control.onContainerClick($event); });\n        ɵngcc0.ɵɵtemplate(3, MatFormField_ng_container_3_Template, 9, 0, \"ng-container\", 3);\n        ɵngcc0.ɵɵtemplate(4, MatFormField_div_4_Template, 2, 0, \"div\", 4);\n        ɵngcc0.ɵɵelementStart(5, \"div\", 5, 6);\n        ɵngcc0.ɵɵprojection(7);\n        ɵngcc0.ɵɵelementStart(8, \"span\", 7);\n        ɵngcc0.ɵɵtemplate(9, MatFormField_label_9_Template, 5, 16, \"label\", 8);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵtemplate(10, MatFormField_div_10_Template, 2, 0, \"div\", 9);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵtemplate(11, MatFormField_div_11_Template, 3, 4, \"div\", 10);\n        ɵngcc0.ɵɵelementStart(12, \"div\", 11);\n        ɵngcc0.ɵɵtemplate(13, MatFormField_div_13_Template, 2, 1, \"div\", 12);\n        ɵngcc0.ɵɵtemplate(14, MatFormField_div_14_Template, 5, 2, \"div\", 13);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.appearance == \"outline\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx._prefixChildren.length);\n        ɵngcc0.ɵɵadvance(5);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx._hasFloatingLabel());\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx._suffixChildren.length);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.appearance != \"outline\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngSwitch\", ctx._getDisplayedMessages());\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngSwitchCase\", \"error\");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngSwitchCase\", \"hint\");\n    } }, directives: [ɵngcc3.NgIf, ɵngcc3.NgSwitch, ɵngcc3.NgSwitchCase, ɵngcc4.CdkObserveContent], styles: [\".mat-form-field{display:inline-block;position:relative;text-align:left}[dir=rtl] .mat-form-field{text-align:right}.mat-form-field-wrapper{position:relative}.mat-form-field-flex{display:inline-flex;align-items:baseline;box-sizing:border-box;width:100%}.mat-form-field-prefix,.mat-form-field-suffix{white-space:nowrap;flex:none;position:relative}.mat-form-field-infix{display:block;position:relative;flex:auto;min-width:0;width:180px}.cdk-high-contrast-active .mat-form-field-infix{border-image:linear-gradient(transparent, transparent)}.mat-form-field-label-wrapper{position:absolute;left:0;box-sizing:content-box;width:100%;height:100%;overflow:hidden;pointer-events:none}[dir=rtl] .mat-form-field-label-wrapper{left:auto;right:0}.mat-form-field-label{position:absolute;left:0;font:inherit;pointer-events:none;width:100%;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;transform-origin:0 0;transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1),color 400ms cubic-bezier(0.25, 0.8, 0.25, 1),width 400ms cubic-bezier(0.25, 0.8, 0.25, 1);display:none}[dir=rtl] .mat-form-field-label{transform-origin:100% 0;left:auto;right:0}.mat-form-field-empty.mat-form-field-label,.mat-form-field-can-float.mat-form-field-should-float .mat-form-field-label{display:block}.mat-form-field-autofill-control:-webkit-autofill+.mat-form-field-label-wrapper .mat-form-field-label{display:none}.mat-form-field-can-float .mat-form-field-autofill-control:-webkit-autofill+.mat-form-field-label-wrapper .mat-form-field-label{display:block;transition:none}.mat-input-server:focus+.mat-form-field-label-wrapper .mat-form-field-label,.mat-input-server[placeholder]:not(:placeholder-shown)+.mat-form-field-label-wrapper .mat-form-field-label{display:none}.mat-form-field-can-float .mat-input-server:focus+.mat-form-field-label-wrapper .mat-form-field-label,.mat-form-field-can-float .mat-input-server[placeholder]:not(:placeholder-shown)+.mat-form-field-label-wrapper .mat-form-field-label{display:block}.mat-form-field-label:not(.mat-form-field-empty){transition:none}.mat-form-field-underline{position:absolute;width:100%;pointer-events:none;transform:scale3d(1, 1.0001, 1)}.mat-form-field-ripple{position:absolute;left:0;width:100%;transform-origin:50%;transform:scaleX(0.5);opacity:0;transition:background-color 300ms cubic-bezier(0.55, 0, 0.55, 0.2)}.mat-form-field.mat-focused .mat-form-field-ripple,.mat-form-field.mat-form-field-invalid .mat-form-field-ripple{opacity:1;transform:scaleX(1);transition:transform 300ms cubic-bezier(0.25, 0.8, 0.25, 1),opacity 100ms cubic-bezier(0.25, 0.8, 0.25, 1),background-color 300ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-form-field-subscript-wrapper{position:absolute;box-sizing:border-box;width:100%;overflow:hidden}.mat-form-field-subscript-wrapper .mat-icon,.mat-form-field-label-wrapper .mat-icon{width:1em;height:1em;font-size:inherit;vertical-align:baseline}.mat-form-field-hint-wrapper{display:flex}.mat-form-field-hint-spacer{flex:1 0 1em}.mat-error{display:block}.mat-form-field-control-wrapper{position:relative}.mat-form-field._mat-animation-noopable .mat-form-field-label,.mat-form-field._mat-animation-noopable .mat-form-field-ripple{transition:none}\\n\", \".mat-form-field-appearance-fill .mat-form-field-flex{border-radius:4px 4px 0 0;padding:.75em .75em 0 .75em}.cdk-high-contrast-active .mat-form-field-appearance-fill .mat-form-field-flex{outline:solid 1px}.mat-form-field-appearance-fill .mat-form-field-underline::before{content:\\\"\\\";display:block;position:absolute;bottom:0;height:1px;width:100%}.mat-form-field-appearance-fill .mat-form-field-ripple{bottom:0;height:2px}.cdk-high-contrast-active .mat-form-field-appearance-fill .mat-form-field-ripple{height:0;border-top:solid 2px}.mat-form-field-appearance-fill:not(.mat-form-field-disabled) .mat-form-field-flex:hover~.mat-form-field-underline .mat-form-field-ripple{opacity:1;transform:none;transition:opacity 600ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-form-field-appearance-fill._mat-animation-noopable:not(.mat-form-field-disabled) .mat-form-field-flex:hover~.mat-form-field-underline .mat-form-field-ripple{transition:none}.mat-form-field-appearance-fill .mat-form-field-subscript-wrapper{padding:0 1em}\\n\", \".mat-input-element{font:inherit;background:transparent;color:currentColor;border:none;outline:none;padding:0;margin:0;width:100%;max-width:100%;vertical-align:bottom;text-align:inherit}.mat-input-element:-moz-ui-invalid{box-shadow:none}.mat-input-element::-ms-clear,.mat-input-element::-ms-reveal{display:none}.mat-input-element,.mat-input-element::-webkit-search-cancel-button,.mat-input-element::-webkit-search-decoration,.mat-input-element::-webkit-search-results-button,.mat-input-element::-webkit-search-results-decoration{-webkit-appearance:none}.mat-input-element::-webkit-contacts-auto-fill-button,.mat-input-element::-webkit-caps-lock-indicator,.mat-input-element::-webkit-credentials-auto-fill-button{visibility:hidden}.mat-input-element[type=date],.mat-input-element[type=datetime],.mat-input-element[type=datetime-local],.mat-input-element[type=month],.mat-input-element[type=week],.mat-input-element[type=time]{line-height:1}.mat-input-element[type=date]::after,.mat-input-element[type=datetime]::after,.mat-input-element[type=datetime-local]::after,.mat-input-element[type=month]::after,.mat-input-element[type=week]::after,.mat-input-element[type=time]::after{content:\\\" \\\";white-space:pre;width:1px}.mat-input-element::-webkit-inner-spin-button,.mat-input-element::-webkit-calendar-picker-indicator,.mat-input-element::-webkit-clear-button{font-size:.75em}.mat-input-element::placeholder{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;transition:color 400ms 133.3333333333ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-input-element::placeholder:-ms-input-placeholder{-ms-user-select:text}.mat-input-element::-moz-placeholder{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;transition:color 400ms 133.3333333333ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-input-element::-moz-placeholder:-ms-input-placeholder{-ms-user-select:text}.mat-input-element::-webkit-input-placeholder{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;transition:color 400ms 133.3333333333ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-input-element::-webkit-input-placeholder:-ms-input-placeholder{-ms-user-select:text}.mat-input-element:-ms-input-placeholder{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;transition:color 400ms 133.3333333333ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-input-element:-ms-input-placeholder:-ms-input-placeholder{-ms-user-select:text}.mat-form-field-hide-placeholder .mat-input-element::placeholder{color:transparent !important;-webkit-text-fill-color:transparent;transition:none}.mat-form-field-hide-placeholder .mat-input-element::-moz-placeholder{color:transparent !important;-webkit-text-fill-color:transparent;transition:none}.mat-form-field-hide-placeholder .mat-input-element::-webkit-input-placeholder{color:transparent !important;-webkit-text-fill-color:transparent;transition:none}.mat-form-field-hide-placeholder .mat-input-element:-ms-input-placeholder{color:transparent !important;-webkit-text-fill-color:transparent;transition:none}textarea.mat-input-element{resize:vertical;overflow:auto}textarea.mat-input-element.cdk-textarea-autosize{resize:none}textarea.mat-input-element{padding:2px 0;margin:-2px 0}select.mat-input-element{-moz-appearance:none;-webkit-appearance:none;position:relative;background-color:transparent;display:inline-flex;box-sizing:border-box;padding-top:1em;top:-1em;margin-bottom:-1em}select.mat-input-element::-ms-expand{display:none}select.mat-input-element::-moz-focus-inner{border:0}select.mat-input-element:not(:disabled){cursor:pointer}select.mat-input-element::-ms-value{color:inherit;background:none}.mat-focused .cdk-high-contrast-active select.mat-input-element::-ms-value{color:inherit}.mat-form-field-type-mat-native-select .mat-form-field-infix::after{content:\\\"\\\";width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid;position:absolute;top:50%;right:0;margin-top:-2.5px;pointer-events:none}[dir=rtl] .mat-form-field-type-mat-native-select .mat-form-field-infix::after{right:auto;left:0}.mat-form-field-type-mat-native-select .mat-input-element{padding-right:15px}[dir=rtl] .mat-form-field-type-mat-native-select .mat-input-element{padding-right:0;padding-left:15px}.mat-form-field-type-mat-native-select .mat-form-field-label-wrapper{max-width:calc(100% - 10px)}.mat-form-field-type-mat-native-select.mat-form-field-appearance-outline .mat-form-field-infix::after{margin-top:-5px}.mat-form-field-type-mat-native-select.mat-form-field-appearance-fill .mat-form-field-infix::after{margin-top:-10px}\\n\", \".mat-form-field-appearance-legacy .mat-form-field-label{transform:perspective(100px);-ms-transform:none}.mat-form-field-appearance-legacy .mat-form-field-prefix .mat-icon,.mat-form-field-appearance-legacy .mat-form-field-suffix .mat-icon{width:1em}.mat-form-field-appearance-legacy .mat-form-field-prefix .mat-icon-button,.mat-form-field-appearance-legacy .mat-form-field-suffix .mat-icon-button{font:inherit;vertical-align:baseline}.mat-form-field-appearance-legacy .mat-form-field-prefix .mat-icon-button .mat-icon,.mat-form-field-appearance-legacy .mat-form-field-suffix .mat-icon-button .mat-icon{font-size:inherit}.mat-form-field-appearance-legacy .mat-form-field-underline{height:1px}.cdk-high-contrast-active .mat-form-field-appearance-legacy .mat-form-field-underline{height:0;border-top:solid 1px}.mat-form-field-appearance-legacy .mat-form-field-ripple{top:0;height:2px;overflow:hidden}.cdk-high-contrast-active .mat-form-field-appearance-legacy .mat-form-field-ripple{height:0;border-top:solid 2px}.mat-form-field-appearance-legacy.mat-form-field-disabled .mat-form-field-underline{background-position:0;background-color:transparent}.cdk-high-contrast-active .mat-form-field-appearance-legacy.mat-form-field-disabled .mat-form-field-underline{border-top-style:dotted;border-top-width:2px}.mat-form-field-appearance-legacy.mat-form-field-invalid:not(.mat-focused) .mat-form-field-ripple{height:1px}\\n\", \".mat-form-field-appearance-outline .mat-form-field-wrapper{margin:.25em 0}.mat-form-field-appearance-outline .mat-form-field-flex{padding:0 .75em 0 .75em;margin-top:-0.25em;position:relative}.mat-form-field-appearance-outline .mat-form-field-prefix,.mat-form-field-appearance-outline .mat-form-field-suffix{top:.25em}.mat-form-field-appearance-outline .mat-form-field-outline{display:flex;position:absolute;top:.25em;left:0;right:0;bottom:0;pointer-events:none}.mat-form-field-appearance-outline .mat-form-field-outline-start,.mat-form-field-appearance-outline .mat-form-field-outline-end{border:1px solid currentColor;min-width:5px}.mat-form-field-appearance-outline .mat-form-field-outline-start{border-radius:5px 0 0 5px;border-right-style:none}[dir=rtl] .mat-form-field-appearance-outline 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.mat-form-field-outline-thick .mat-form-field-outline-gap{border-width:2px}.mat-form-field-appearance-outline.mat-focused .mat-form-field-outline,.mat-form-field-appearance-outline.mat-form-field-invalid .mat-form-field-outline{opacity:0;transition:opacity 100ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-form-field-appearance-outline.mat-focused .mat-form-field-outline-thick,.mat-form-field-appearance-outline.mat-form-field-invalid .mat-form-field-outline-thick{opacity:1}.mat-form-field-appearance-outline:not(.mat-form-field-disabled) .mat-form-field-flex:hover .mat-form-field-outline{opacity:0;transition:opacity 600ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-form-field-appearance-outline:not(.mat-form-field-disabled) .mat-form-field-flex:hover .mat-form-field-outline-thick{opacity:1}.mat-form-field-appearance-outline .mat-form-field-subscript-wrapper{padding:0 1em}.mat-form-field-appearance-outline._mat-animation-noopable:not(.mat-form-field-disabled) .mat-form-field-flex:hover~.mat-form-field-outline,.mat-form-field-appearance-outline._mat-animation-noopable .mat-form-field-outline,.mat-form-field-appearance-outline._mat-animation-noopable .mat-form-field-outline-start,.mat-form-field-appearance-outline._mat-animation-noopable .mat-form-field-outline-end,.mat-form-field-appearance-outline._mat-animation-noopable .mat-form-field-outline-gap{transition:none}\\n\", \".mat-form-field-appearance-standard .mat-form-field-flex{padding-top:.75em}.mat-form-field-appearance-standard .mat-form-field-underline{height:1px}.cdk-high-contrast-active .mat-form-field-appearance-standard .mat-form-field-underline{height:0;border-top:solid 1px}.mat-form-field-appearance-standard .mat-form-field-ripple{bottom:0;height:2px}.cdk-high-contrast-active .mat-form-field-appearance-standard .mat-form-field-ripple{height:0;border-top:2px}.mat-form-field-appearance-standard.mat-form-field-disabled .mat-form-field-underline{background-position:0;background-color:transparent}.cdk-high-contrast-active .mat-form-field-appearance-standard.mat-form-field-disabled .mat-form-field-underline{border-top-style:dotted;border-top-width:2px}.mat-form-field-appearance-standard:not(.mat-form-field-disabled) .mat-form-field-flex:hover~.mat-form-field-underline .mat-form-field-ripple{opacity:1;transform:none;transition:opacity 600ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-form-field-appearance-standard._mat-animation-noopable:not(.mat-form-field-disabled) .mat-form-field-flex:hover~.mat-form-field-underline .mat-form-field-ripple{transition:none}\\n\"], encapsulation: 2, data: { animation: [matFormFieldAnimations.transitionMessages] }, changeDetection: 0 });\n/** @nocollapse */\nMatFormField.ctorParameters = () => [\n    { type: ElementRef },\n    { type: ChangeDetectorRef },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_LABEL_GLOBAL_OPTIONS,] }] },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_FORM_FIELD_DEFAULT_OPTIONS,] }] },\n    { type: Platform },\n    { type: NgZone },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] }\n];\nMatFormField.propDecorators = {\n    appearance: [{ type: Input }],\n    hideRequiredMarker: [{ type: Input }],\n    hintLabel: [{ type: Input }],\n    floatLabel: [{ type: Input }],\n    underlineRef: [{ type: ViewChild, args: ['underline',] }],\n    _connectionContainerRef: [{ type: ViewChild, args: ['connectionContainer', { static: true },] }],\n    _inputContainerRef: [{ type: ViewChild, args: ['inputContainer',] }],\n    _label: [{ type: ViewChild, args: ['label',] }],\n    _controlNonStatic: [{ type: ContentChild, args: [MatFormFieldControl,] }],\n    _controlStatic: [{ type: ContentChild, args: [MatFormFieldControl, { static: true },] }],\n    _labelChildNonStatic: [{ type: ContentChild, args: [MatLabel,] }],\n    _labelChildStatic: [{ type: ContentChild, args: [MatLabel, { static: true },] }],\n    _placeholderChild: [{ type: ContentChild, args: [MatPlaceholder,] }],\n    _errorChildren: [{ type: ContentChildren, args: [MatError, { descendants: true },] }],\n    _hintChildren: [{ type: ContentChildren, args: [MatHint, { descendants: true },] }],\n    _prefixChildren: [{ type: ContentChildren, args: [MatPrefix, { descendants: true },] }],\n    _suffixChildren: [{ type: ContentChildren, args: [MatSuffix, { descendants: true },] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatFormField, [{\n        type: Component,\n        args: [{\n                selector: 'mat-form-field',\n                exportAs: 'matFormField',\n                template: \"<div class=\\\"mat-form-field-wrapper\\\">\\n  <div class=\\\"mat-form-field-flex\\\" #connectionContainer\\n       (click)=\\\"_control.onContainerClick && _control.onContainerClick($event)\\\">\\n\\n    <!-- Outline used for outline appearance. -->\\n    <ng-container *ngIf=\\\"appearance == 'outline'\\\">\\n      <div class=\\\"mat-form-field-outline\\\">\\n        <div class=\\\"mat-form-field-outline-start\\\"></div>\\n        <div class=\\\"mat-form-field-outline-gap\\\"></div>\\n        <div class=\\\"mat-form-field-outline-end\\\"></div>\\n      </div>\\n      <div class=\\\"mat-form-field-outline mat-form-field-outline-thick\\\">\\n        <div class=\\\"mat-form-field-outline-start\\\"></div>\\n        <div class=\\\"mat-form-field-outline-gap\\\"></div>\\n        <div class=\\\"mat-form-field-outline-end\\\"></div>\\n      </div>\\n    </ng-container>\\n\\n    <div class=\\\"mat-form-field-prefix\\\" *ngIf=\\\"_prefixChildren.length\\\">\\n      <ng-content select=\\\"[matPrefix]\\\"></ng-content>\\n    </div>\\n\\n    <div class=\\\"mat-form-field-infix\\\" #inputContainer>\\n      <ng-content></ng-content>\\n\\n      <span class=\\\"mat-form-field-label-wrapper\\\">\\n        <!-- We add aria-owns as a workaround for an issue in JAWS & NVDA where the label isn't\\n             read if it comes before the control in the DOM. -->\\n        <label class=\\\"mat-form-field-label\\\"\\n               (cdkObserveContent)=\\\"updateOutlineGap()\\\"\\n               [cdkObserveContentDisabled]=\\\"appearance != 'outline'\\\"\\n               [id]=\\\"_labelId\\\"\\n               [attr.for]=\\\"_control.id\\\"\\n               [attr.aria-owns]=\\\"_control.id\\\"\\n               [class.mat-empty]=\\\"_control.empty && !_shouldAlwaysFloat\\\"\\n               [class.mat-form-field-empty]=\\\"_control.empty && !_shouldAlwaysFloat\\\"\\n               [class.mat-accent]=\\\"color == 'accent'\\\"\\n               [class.mat-warn]=\\\"color == 'warn'\\\"\\n               #label\\n               *ngIf=\\\"_hasFloatingLabel()\\\"\\n               [ngSwitch]=\\\"_hasLabel()\\\">\\n\\n          <!-- @breaking-change 8.0.0 remove in favor of mat-label element an placeholder attr. -->\\n          <ng-container *ngSwitchCase=\\\"false\\\">\\n            <ng-content select=\\\"mat-placeholder\\\"></ng-content>\\n            <span>{{_control.placeholder}}</span>\\n          </ng-container>\\n\\n          <ng-content select=\\\"mat-label\\\" *ngSwitchCase=\\\"true\\\"></ng-content>\\n\\n          <!-- @breaking-change 8.0.0 remove `mat-placeholder-required` class -->\\n          <span\\n            class=\\\"mat-placeholder-required mat-form-field-required-marker\\\"\\n            aria-hidden=\\\"true\\\"\\n            *ngIf=\\\"!hideRequiredMarker && _control.required && !_control.disabled\\\">&#32;*</span>\\n        </label>\\n      </span>\\n    </div>\\n\\n    <div class=\\\"mat-form-field-suffix\\\" *ngIf=\\\"_suffixChildren.length\\\">\\n      <ng-content select=\\\"[matSuffix]\\\"></ng-content>\\n    </div>\\n  </div>\\n\\n  <!-- Underline used for legacy, standard, and box appearances. -->\\n  <div class=\\\"mat-form-field-underline\\\" #underline\\n       *ngIf=\\\"appearance != 'outline'\\\">\\n    <span class=\\\"mat-form-field-ripple\\\"\\n          [class.mat-accent]=\\\"color == 'accent'\\\"\\n          [class.mat-warn]=\\\"color == 'warn'\\\"></span>\\n  </div>\\n\\n  <div class=\\\"mat-form-field-subscript-wrapper\\\"\\n       [ngSwitch]=\\\"_getDisplayedMessages()\\\">\\n    <div *ngSwitchCase=\\\"'error'\\\" [@transitionMessages]=\\\"_subscriptAnimationState\\\">\\n      <ng-content select=\\\"mat-error\\\"></ng-content>\\n    </div>\\n\\n    <div class=\\\"mat-form-field-hint-wrapper\\\" *ngSwitchCase=\\\"'hint'\\\"\\n      [@transitionMessages]=\\\"_subscriptAnimationState\\\">\\n      <!-- TODO(mmalerba): use an actual <mat-hint> once all selectors are switched to mat-* -->\\n      <div *ngIf=\\\"hintLabel\\\" [id]=\\\"_hintLabelId\\\" class=\\\"mat-hint\\\">{{hintLabel}}</div>\\n      <ng-content select=\\\"mat-hint:not([align='end'])\\\"></ng-content>\\n      <div class=\\\"mat-form-field-hint-spacer\\\"></div>\\n      <ng-content select=\\\"mat-hint[align='end']\\\"></ng-content>\\n    </div>\\n  </div>\\n</div>\\n\",\n                animations: [matFormFieldAnimations.transitionMessages],\n                host: {\n                    'class': 'mat-form-field',\n                    '[class.mat-form-field-appearance-standard]': 'appearance == \"standard\"',\n                    '[class.mat-form-field-appearance-fill]': 'appearance == \"fill\"',\n                    '[class.mat-form-field-appearance-outline]': 'appearance == \"outline\"',\n                    '[class.mat-form-field-appearance-legacy]': 'appearance == \"legacy\"',\n                    '[class.mat-form-field-invalid]': '_control.errorState',\n                    '[class.mat-form-field-can-float]': '_canLabelFloat',\n                    '[class.mat-form-field-should-float]': '_shouldLabelFloat()',\n                    '[class.mat-form-field-has-label]': '_hasFloatingLabel()',\n                    '[class.mat-form-field-hide-placeholder]': '_hideControlPlaceholder()',\n                    '[class.mat-form-field-disabled]': '_control.disabled',\n                    '[class.mat-form-field-autofilled]': '_control.autofilled',\n                    '[class.mat-focused]': '_control.focused',\n                    '[class.mat-accent]': 'color == \"accent\"',\n                    '[class.mat-warn]': 'color == \"warn\"',\n                    '[class.ng-untouched]': '_shouldForward(\"untouched\")',\n                    '[class.ng-touched]': '_shouldForward(\"touched\")',\n                    '[class.ng-pristine]': '_shouldForward(\"pristine\")',\n                    '[class.ng-dirty]': '_shouldForward(\"dirty\")',\n                    '[class.ng-valid]': '_shouldForward(\"valid\")',\n                    '[class.ng-invalid]': '_shouldForward(\"invalid\")',\n                    '[class.ng-pending]': '_shouldForward(\"pending\")',\n                    '[class._mat-animation-noopable]': '!_animationsEnabled'\n                },\n                inputs: ['color'],\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                providers: [\n                    { provide: MAT_FORM_FIELD, useExisting: MatFormField },\n                ],\n                styles: [\".mat-form-field{display:inline-block;position:relative;text-align:left}[dir=rtl] .mat-form-field{text-align:right}.mat-form-field-wrapper{position:relative}.mat-form-field-flex{display:inline-flex;align-items:baseline;box-sizing:border-box;width:100%}.mat-form-field-prefix,.mat-form-field-suffix{white-space:nowrap;flex:none;position:relative}.mat-form-field-infix{display:block;position:relative;flex:auto;min-width:0;width:180px}.cdk-high-contrast-active .mat-form-field-infix{border-image:linear-gradient(transparent, 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.mat-form-field-underline{background-position:0;background-color:transparent}.cdk-high-contrast-active .mat-form-field-appearance-standard.mat-form-field-disabled .mat-form-field-underline{border-top-style:dotted;border-top-width:2px}.mat-form-field-appearance-standard:not(.mat-form-field-disabled) .mat-form-field-flex:hover~.mat-form-field-underline .mat-form-field-ripple{opacity:1;transform:none;transition:opacity 600ms cubic-bezier(0.25, 0.8, 0.25, 1)}.mat-form-field-appearance-standard._mat-animation-noopable:not(.mat-form-field-disabled) .mat-form-field-flex:hover~.mat-form-field-underline .mat-form-field-ripple{transition:none}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.ChangeDetectorRef }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_LABEL_GLOBAL_OPTIONS]\n            }] }, { type: ɵngcc1.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_FORM_FIELD_DEFAULT_OPTIONS]\n            }] }, { type: ɵngcc2.Platform }, { type: ɵngcc0.NgZone }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }]; }, { floatLabel: [{\n            type: Input\n        }], appearance: [{\n            type: Input\n        }], hideRequiredMarker: [{\n            type: Input\n        }], hintLabel: [{\n            type: Input\n        }], underlineRef: [{\n            type: ViewChild,\n            args: ['underline']\n        }], _connectionContainerRef: [{\n            type: ViewChild,\n            args: ['connectionContainer', { static: true }]\n        }], _inputContainerRef: [{\n            type: ViewChild,\n            args: ['inputContainer']\n        }], _label: [{\n            type: ViewChild,\n            args: ['label']\n        }], _controlNonStatic: [{\n            type: ContentChild,\n            args: [MatFormFieldControl]\n        }], _controlStatic: [{\n            type: ContentChild,\n            args: [MatFormFieldControl, { static: true }]\n        }], _labelChildNonStatic: [{\n            type: ContentChild,\n            args: [MatLabel]\n        }], _labelChildStatic: [{\n            type: ContentChild,\n            args: [MatLabel, { static: true }]\n        }], _placeholderChild: [{\n            type: ContentChild,\n            args: [MatPlaceholder]\n        }], _errorChildren: [{\n            type: ContentChildren,\n            args: [MatError, { descendants: true }]\n        }], _hintChildren: [{\n            type: ContentChildren,\n            args: [MatHint, { descendants: true }]\n        }], _prefixChildren: [{\n            type: ContentChildren,\n            args: [MatPrefix, { descendants: true }]\n        }], _suffixChildren: [{\n            type: ContentChildren,\n            args: [MatSuffix, { descendants: true }]\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatFormField.ngAcceptInputType_hideRequiredMarker;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._labelOptions;\n    /**\n     * Whether the outline gap needs to be calculated\n     * immediately on the next change detection run.\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._outlineGapCalculationNeededImmediately;\n    /**\n     * Whether the outline gap needs to be calculated next time the zone has stabilized.\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._outlineGapCalculationNeededOnStable;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._destroyed;\n    /** @type {?} */\n    MatFormField.prototype._appearance;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._hideRequiredMarker;\n    /**\n     * Override for the logic that disables the label animation in certain cases.\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._showAlwaysAnimate;\n    /**\n     * State of the mat-hint and mat-error animations.\n     * @type {?}\n     */\n    MatFormField.prototype._subscriptAnimationState;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._hintLabel;\n    /** @type {?} */\n    MatFormField.prototype._hintLabelId;\n    /** @type {?} */\n    MatFormField.prototype._labelId;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._floatLabel;\n    /**\n     * Whether the Angular animations are enabled.\n     * @type {?}\n     */\n    MatFormField.prototype._animationsEnabled;\n    /**\n     * @deprecated\n     * \\@breaking-change 8.0.0\n     * @type {?}\n     */\n    MatFormField.prototype.underlineRef;\n    /** @type {?} */\n    MatFormField.prototype._connectionContainerRef;\n    /** @type {?} */\n    MatFormField.prototype._inputContainerRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._label;\n    /** @type {?} */\n    MatFormField.prototype._controlNonStatic;\n    /** @type {?} */\n    MatFormField.prototype._controlStatic;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._explicitFormFieldControl;\n    /** @type {?} */\n    MatFormField.prototype._labelChildNonStatic;\n    /** @type {?} */\n    MatFormField.prototype._labelChildStatic;\n    /** @type {?} */\n    MatFormField.prototype._placeholderChild;\n    /** @type {?} */\n    MatFormField.prototype._errorChildren;\n    /** @type {?} */\n    MatFormField.prototype._hintChildren;\n    /** @type {?} */\n    MatFormField.prototype._prefixChildren;\n    /** @type {?} */\n    MatFormField.prototype._suffixChildren;\n    /** @type {?} */\n    MatFormField.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._dir;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._defaults;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._platform;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatFormField.prototype._ngZone;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/form-field-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatFormFieldModule {\n}\nMatFormFieldModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatFormFieldModule });\nMatFormFieldModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatFormFieldModule_Factory(t) { return new (t || MatFormFieldModule)(); }, imports: [[\n            CommonModule,\n            MatCommonModule,\n            ObserversModule,\n        ], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatFormFieldModule, { declarations: function () { return [MatError, MatFormField, MatHint, MatLabel, MatPlaceholder, MatPrefix, MatSuffix]; }, imports: function () { return [CommonModule,\n        MatCommonModule,\n        ObserversModule]; }, exports: function () { return [MatCommonModule, MatError, MatFormField, MatHint, MatLabel, MatPlaceholder, MatPrefix, MatSuffix]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatFormFieldModule, [{\n        type: NgModule,\n        args: [{\n                declarations: [\n                    MatError,\n                    MatFormField,\n                    MatHint,\n                    MatLabel,\n                    MatPlaceholder,\n                    MatPrefix,\n                    MatSuffix,\n                ],\n                imports: [\n                    CommonModule,\n                    MatCommonModule,\n                    ObserversModule,\n                ],\n                exports: [\n                    MatCommonModule,\n                    MatError,\n                    MatFormField,\n                    MatHint,\n                    MatLabel,\n                    MatPlaceholder,\n                    MatPrefix,\n                    MatSuffix,\n                ]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/form-field/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_FORM_FIELD, MAT_FORM_FIELD_DEFAULT_OPTIONS, MatError, MatFormField, MatFormFieldControl, MatFormFieldModule, MatHint, MatLabel, MatPlaceholder, MatPrefix, MatSuffix, getMatFormFieldDuplicatedHintError, getMatFormFieldMissingControlError, getMatFormFieldPlaceholderConflictError, matFormFieldAnimations };\n\n//# sourceMappingURL=form-field.js.map","import { Overlay, CdkConnectedOverlay, OverlayModule } from '@angular/cdk/overlay';\nimport { CommonModule } from '@angular/common';\nimport { InjectionToken, Directive, EventEmitter, isDevMode, Component, ViewEncapsulation, ChangeDetectionStrategy, ChangeDetectorRef, NgZone, ElementRef, Optional, Inject, Self, Attribute, ViewChild, ContentChildren, Input, ContentChild, Output, NgModule } from '@angular/core';\nimport { mixinDisableRipple, mixinTabIndex, mixinDisabled, mixinErrorState, _countGroupLabelsBeforeOption, _getOptionScrollPosition, MAT_OPTION_PARENT_COMPONENT, ErrorStateMatcher, MatOption, MatOptgroup, MatOptionModule, MatCommonModule } from '@angular/material/core';\nimport { MatFormFieldControl, MatFormField, MAT_FORM_FIELD, MatFormFieldModule } from '@angular/material/form-field';\nimport { ViewportRuler, CdkScrollableModule } from '@angular/cdk/scrolling';\nimport { ActiveDescendantKeyManager, LiveAnnouncer } from '@angular/cdk/a11y';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { coerceBooleanProperty, coerceNumberProperty } from '@angular/cdk/coercion';\nimport { SelectionModel } from '@angular/cdk/collections';\nimport { DOWN_ARROW, UP_ARROW, LEFT_ARROW, RIGHT_ARROW, ENTER, SPACE, hasModifierKey, HOME, END, A } from '@angular/cdk/keycodes';\nimport { NgForm, FormGroupDirective, NgControl } from '@angular/forms';\nimport { Subject, defer, merge } from 'rxjs';\nimport { startWith, switchMap, take, filter, map, distinctUntilChanged, takeUntil } from 'rxjs/operators';\nimport { trigger, transition, query, animateChild, state, style, animate } from '@angular/animations';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/select/select-animations.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The following are all the animations for the mat-select component, with each\n * const containing the metadata for one animation.\n *\n * The values below match the implementation of the AngularJS Material mat-select animation.\n * \\@docs-private\n * @type {?}\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/scrolling';\nimport * as ɵngcc2 from '@angular/material/core';\nimport * as ɵngcc3 from '@angular/cdk/bidi';\nimport * as ɵngcc4 from '@angular/forms';\nimport * as ɵngcc5 from '@angular/cdk/a11y';\nimport * as ɵngcc6 from '@angular/cdk/overlay';\nimport * as ɵngcc7 from '@angular/common';\nimport * as ɵngcc8 from '@angular/material/form-field';\n\nconst _c0 = [\"trigger\"];\nconst _c1 = [\"panel\"];\nfunction MatSelect_span_4_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"span\", 8);\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r2 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r2.placeholder || \"\\u00A0\");\n} }\nfunction MatSelect_span_5_span_1_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"span\");\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r5 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r5.triggerValue || \"\\u00A0\");\n} }\nfunction MatSelect_span_5_2_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵprojection(0, 0, [\"*ngSwitchCase\", \"true\"]);\n} }\nfunction MatSelect_span_5_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"span\", 9);\n    ɵngcc0.ɵɵtemplate(1, MatSelect_span_5_span_1_Template, 2, 1, \"span\", 10);\n    ɵngcc0.ɵɵtemplate(2, MatSelect_span_5_2_Template, 1, 0, undefined, 11);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r3 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"ngSwitch\", !!ctx_r3.customTrigger);\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵproperty(\"ngSwitchCase\", true);\n} }\nfunction MatSelect_ng_template_8_Template(rf, ctx) { if (rf & 1) {\n    const _r9 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"div\", 12);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 13, 14);\n    ɵngcc0.ɵɵlistener(\"@transformPanel.done\", function MatSelect_ng_template_8_Template_div_animation_transformPanel_done_1_listener($event) { ɵngcc0.ɵɵrestoreView(_r9); const ctx_r8 = ɵngcc0.ɵɵnextContext(); return ctx_r8._panelDoneAnimatingStream.next($event.toState); })(\"keydown\", function MatSelect_ng_template_8_Template_div_keydown_1_listener($event) { ɵngcc0.ɵɵrestoreView(_r9); const ctx_r10 = ɵngcc0.ɵɵnextContext(); return ctx_r10._handleKeydown($event); });\n    ɵngcc0.ɵɵprojection(3, 1);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r4 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"@transformPanelWrap\", undefined);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵclassMapInterpolate1(\"mat-select-panel \", ctx_r4._getPanelTheme(), \"\");\n    ɵngcc0.ɵɵstyleProp(\"transform-origin\", ctx_r4._transformOrigin)(\"font-size\", ctx_r4._triggerFontSize, \"px\");\n    ɵngcc0.ɵɵproperty(\"ngClass\", ctx_r4.panelClass)(\"@transformPanel\", ctx_r4.multiple ? \"showing-multiple\" : \"showing\");\n    ɵngcc0.ɵɵattribute(\"id\", ctx_r4.id + \"-panel\");\n} }\nconst _c2 = [[[\"mat-select-trigger\"]], \"*\"];\nconst _c3 = [\"mat-select-trigger\", \"*\"];\nconst matSelectAnimations = {\n    /**\n     * This animation ensures the select's overlay panel animation (transformPanel) is called when\n     * closing the select.\n     * This is needed due to https://github.com/angular/angular/issues/23302\n     */\n    transformPanelWrap: trigger('transformPanelWrap', [\n        transition('* => void', query('@transformPanel', [animateChild()], { optional: true }))\n    ]),\n    /**\n     * This animation transforms the select's overlay panel on and off the page.\n     *\n     * When the panel is attached to the DOM, it expands its width by the amount of padding, scales it\n     * up to 100% on the Y axis, fades in its border, and translates slightly up and to the\n     * side to ensure the option text correctly overlaps the trigger text.\n     *\n     * When the panel is removed from the DOM, it simply fades out linearly.\n     */\n    transformPanel: trigger('transformPanel', [\n        state('void', style({\n            transform: 'scaleY(0.8)',\n            minWidth: '100%',\n            opacity: 0\n        })),\n        state('showing', style({\n            opacity: 1,\n            minWidth: 'calc(100% + 32px)',\n            // 32px = 2 * 16px padding\n            transform: 'scaleY(1)'\n        })),\n        state('showing-multiple', style({\n            opacity: 1,\n            minWidth: 'calc(100% + 64px)',\n            // 64px = 48px padding on the left + 16px padding on the right\n            transform: 'scaleY(1)'\n        })),\n        transition('void => *', animate('120ms cubic-bezier(0, 0, 0.2, 1)')),\n        transition('* => void', animate('100ms 25ms linear', style({ opacity: 0 })))\n    ])\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/select/select-errors.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n/**\n * Returns an exception to be thrown when attempting to change a select's `multiple` option\n * after initialization.\n * \\@docs-private\n * @return {?}\n */\nfunction getMatSelectDynamicMultipleError() {\n    return Error('Cannot change `multiple` mode of select after initialization.');\n}\n/**\n * Returns an exception to be thrown when attempting to assign a non-array value to a select\n * in `multiple` mode. Note that `undefined` and `null` are still valid values to allow for\n * resetting the value.\n * \\@docs-private\n * @return {?}\n */\nfunction getMatSelectNonArrayValueError() {\n    return Error('Value must be an array in multiple-selection mode.');\n}\n/**\n * Returns an exception to be thrown when assigning a non-function value to the comparator\n * used to determine if a value corresponds to an option. Note that whether the function\n * actually takes two values and returns a boolean is not checked.\n * @return {?}\n */\nfunction getMatSelectNonFunctionValueError() {\n    return Error('`compareWith` must be a function.');\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/select/select.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nlet nextUniqueId = 0;\n/**\n * The max height of the select's overlay panel\n * @type {?}\n */\nconst SELECT_PANEL_MAX_HEIGHT = 256;\n/**\n * The panel's padding on the x-axis\n * @type {?}\n */\nconst SELECT_PANEL_PADDING_X = 16;\n/**\n * The panel's x axis padding if it is indented (e.g. there is an option group).\n * @type {?}\n */\nconst SELECT_PANEL_INDENT_PADDING_X = SELECT_PANEL_PADDING_X * 2;\n/**\n * The height of the select items in `em` units.\n * @type {?}\n */\nconst SELECT_ITEM_HEIGHT_EM = 3;\n// TODO(josephperrott): Revert to a constant after 2018 spec updates are fully merged.\n/**\n * Distance between the panel edge and the option text in\n * multi-selection mode.\n *\n * Calculated as:\n * (SELECT_PANEL_PADDING_X * 1.5) + 16 = 40\n * The padding is multiplied by 1.5 because the checkbox's margin is half the padding.\n * The checkbox width is 16px.\n * @type {?}\n */\nconst SELECT_MULTIPLE_PANEL_PADDING_X = SELECT_PANEL_PADDING_X * 1.5 + 16;\n/**\n * The select panel will only \"fit\" inside the viewport if it is positioned at\n * this value or more away from the viewport boundary.\n * @type {?}\n */\nconst SELECT_PANEL_VIEWPORT_PADDING = 8;\n/**\n * Injection token that determines the scroll handling while a select is open.\n * @type {?}\n */\nconst MAT_SELECT_SCROLL_STRATEGY = new InjectionToken('mat-select-scroll-strategy');\n/**\n * \\@docs-private\n * @param {?} overlay\n * @return {?}\n */\nfunction MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY(overlay) {\n    return (/**\n     * @return {?}\n     */\n    () => overlay.scrollStrategies.reposition());\n}\n/**\n * Object that can be used to configure the default options for the select module.\n * @record\n */\nfunction MatSelectConfig() { }\nif (false) {\n    /**\n     * Whether option centering should be disabled.\n     * @type {?|undefined}\n     */\n    MatSelectConfig.prototype.disableOptionCentering;\n    /**\n     * Time to wait in milliseconds after the last keystroke before moving focus to an item.\n     * @type {?|undefined}\n     */\n    MatSelectConfig.prototype.typeaheadDebounceInterval;\n}\n/**\n * Injection token that can be used to provide the default options the select module.\n * @type {?}\n */\nconst MAT_SELECT_CONFIG = new InjectionToken('MAT_SELECT_CONFIG');\n/**\n * \\@docs-private\n * @type {?}\n */\nconst MAT_SELECT_SCROLL_STRATEGY_PROVIDER = {\n    provide: MAT_SELECT_SCROLL_STRATEGY,\n    deps: [Overlay],\n    useFactory: MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY,\n};\n/**\n * Change event object that is emitted when the select value has changed.\n */\nclass MatSelectChange {\n    /**\n     * @param {?} source\n     * @param {?} value\n     */\n    constructor(source, value) {\n        this.source = source;\n        this.value = value;\n    }\n}\nif (false) {\n    /**\n     * Reference to the select that emitted the change event.\n     * @type {?}\n     */\n    MatSelectChange.prototype.source;\n    /**\n     * Current value of the select that emitted the event.\n     * @type {?}\n     */\n    MatSelectChange.prototype.value;\n}\n// Boilerplate for applying mixins to MatSelect.\n/**\n * \\@docs-private\n */\nclass MatSelectBase {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _defaultErrorStateMatcher\n     * @param {?} _parentForm\n     * @param {?} _parentFormGroup\n     * @param {?} ngControl\n     */\n    constructor(_elementRef, _defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl) {\n        this._elementRef = _elementRef;\n        this._defaultErrorStateMatcher = _defaultErrorStateMatcher;\n        this._parentForm = _parentForm;\n        this._parentFormGroup = _parentFormGroup;\n        this.ngControl = ngControl;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatSelectBase.prototype._elementRef;\n    /** @type {?} */\n    MatSelectBase.prototype._defaultErrorStateMatcher;\n    /** @type {?} */\n    MatSelectBase.prototype._parentForm;\n    /** @type {?} */\n    MatSelectBase.prototype._parentFormGroup;\n    /** @type {?} */\n    MatSelectBase.prototype.ngControl;\n}\n/** @type {?} */\nconst _MatSelectMixinBase = mixinDisableRipple(mixinTabIndex(mixinDisabled(mixinErrorState(MatSelectBase))));\n/**\n * Allows the user to customize the trigger that is displayed when the select has a value.\n */\nclass MatSelectTrigger {\n}\nMatSelectTrigger.ɵfac = function MatSelectTrigger_Factory(t) { return new (t || MatSelectTrigger)(); };\nMatSelectTrigger.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatSelectTrigger, selectors: [[\"mat-select-trigger\"]] });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSelectTrigger, [{\n        type: Directive,\n        args: [{\n                selector: 'mat-select-trigger'\n            }]\n    }], null, null); })();\nclass MatSelect extends _MatSelectMixinBase {\n    /**\n     * @param {?} _viewportRuler\n     * @param {?} _changeDetectorRef\n     * @param {?} _ngZone\n     * @param {?} _defaultErrorStateMatcher\n     * @param {?} elementRef\n     * @param {?} _dir\n     * @param {?} _parentForm\n     * @param {?} _parentFormGroup\n     * @param {?} _parentFormField\n     * @param {?} ngControl\n     * @param {?} tabIndex\n     * @param {?} scrollStrategyFactory\n     * @param {?} _liveAnnouncer\n     * @param {?=} defaults\n     */\n    constructor(_viewportRuler, _changeDetectorRef, _ngZone, _defaultErrorStateMatcher, elementRef, _dir, _parentForm, _parentFormGroup, _parentFormField, ngControl, tabIndex, scrollStrategyFactory, _liveAnnouncer, defaults) {\n        super(elementRef, _defaultErrorStateMatcher, _parentForm, _parentFormGroup, ngControl);\n        this._viewportRuler = _viewportRuler;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._ngZone = _ngZone;\n        this._dir = _dir;\n        this._parentFormField = _parentFormField;\n        this.ngControl = ngControl;\n        this._liveAnnouncer = _liveAnnouncer;\n        /**\n         * Whether or not the overlay panel is open.\n         */\n        this._panelOpen = false;\n        /**\n         * Whether filling out the select is required in the form.\n         */\n        this._required = false;\n        /**\n         * The scroll position of the overlay panel, calculated to center the selected option.\n         */\n        this._scrollTop = 0;\n        /**\n         * Whether the component is in multiple selection mode.\n         */\n        this._multiple = false;\n        /**\n         * Comparison function to specify which option is displayed. Defaults to object equality.\n         */\n        this._compareWith = (/**\n         * @param {?} o1\n         * @param {?} o2\n         * @return {?}\n         */\n        (o1, o2) => o1 === o2);\n        /**\n         * Unique id for this input.\n         */\n        this._uid = `mat-select-${nextUniqueId++}`;\n        /**\n         * Emits whenever the component is destroyed.\n         */\n        this._destroy = new Subject();\n        /**\n         * The cached font-size of the trigger element.\n         */\n        this._triggerFontSize = 0;\n        /**\n         * `View -> model callback called when value changes`\n         */\n        this._onChange = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * `View -> model callback called when select has been touched`\n         */\n        this._onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * The IDs of child options to be passed to the aria-owns attribute.\n         */\n        this._optionIds = '';\n        /**\n         * The value of the select panel's transform-origin property.\n         */\n        this._transformOrigin = 'top';\n        /**\n         * Emits when the panel element is finished transforming in.\n         */\n        this._panelDoneAnimatingStream = new Subject();\n        /**\n         * The y-offset of the overlay panel in relation to the trigger's top start corner.\n         * This must be adjusted to align the selected option text over the trigger text.\n         * when the panel opens. Will change based on the y-position of the selected option.\n         */\n        this._offsetY = 0;\n        /**\n         * This position config ensures that the top \"start\" corner of the overlay\n         * is aligned with with the top \"start\" of the origin by default (overlapping\n         * the trigger completely). If the panel cannot fit below the trigger, it\n         * will fall back to a position above the trigger.\n         */\n        this._positions = [\n            {\n                originX: 'start',\n                originY: 'top',\n                overlayX: 'start',\n                overlayY: 'top',\n            },\n            {\n                originX: 'start',\n                originY: 'bottom',\n                overlayX: 'start',\n                overlayY: 'bottom',\n            },\n        ];\n        /**\n         * Whether the component is disabling centering of the active option over the trigger.\n         */\n        this._disableOptionCentering = false;\n        this._focused = false;\n        /**\n         * A name for this control that can be used by `mat-form-field`.\n         */\n        this.controlType = 'mat-select';\n        /**\n         * Aria label of the select. If not specified, the placeholder will be used as label.\n         */\n        this.ariaLabel = '';\n        /**\n         * Combined stream of all of the child options' change events.\n         */\n        this.optionSelectionChanges = (/** @type {?} */ (defer((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const options = this.options;\n            if (options) {\n                return options.changes.pipe(startWith(options), switchMap((/**\n                 * @return {?}\n                 */\n                () => merge(...options.map((/**\n                 * @param {?} option\n                 * @return {?}\n                 */\n                option => option.onSelectionChange))))));\n            }\n            return this._ngZone.onStable\n                .asObservable()\n                .pipe(take(1), switchMap((/**\n             * @return {?}\n             */\n            () => this.optionSelectionChanges)));\n        }))));\n        /**\n         * Event emitted when the select panel has been toggled.\n         */\n        this.openedChange = new EventEmitter();\n        /**\n         * Event emitted when the select has been opened.\n         */\n        this._openedStream = this.openedChange.pipe(filter((/**\n         * @param {?} o\n         * @return {?}\n         */\n        o => o)), map((/**\n         * @return {?}\n         */\n        () => { })));\n        /**\n         * Event emitted when the select has been closed.\n         */\n        this._closedStream = this.openedChange.pipe(filter((/**\n         * @param {?} o\n         * @return {?}\n         */\n        o => !o)), map((/**\n         * @return {?}\n         */\n        () => { })));\n        /**\n         * Event emitted when the selected value has been changed by the user.\n         */\n        this.selectionChange = new EventEmitter();\n        /**\n         * Event that emits whenever the raw value of the select changes. This is here primarily\n         * to facilitate the two-way binding for the `value` input.\n         * \\@docs-private\n         */\n        this.valueChange = new EventEmitter();\n        if (this.ngControl) {\n            // Note: we provide the value accessor through here, instead of\n            // the `providers` to avoid running into a circular import.\n            this.ngControl.valueAccessor = this;\n        }\n        this._scrollStrategyFactory = scrollStrategyFactory;\n        this._scrollStrategy = this._scrollStrategyFactory();\n        this.tabIndex = parseInt(tabIndex) || 0;\n        // Force setter to be called in case id was not specified.\n        this.id = this.id;\n        if (defaults) {\n            if (defaults.disableOptionCentering != null) {\n                this.disableOptionCentering = defaults.disableOptionCentering;\n            }\n            if (defaults.typeaheadDebounceInterval != null) {\n                this.typeaheadDebounceInterval = defaults.typeaheadDebounceInterval;\n            }\n        }\n    }\n    /**\n     * Whether the select is focused.\n     * @return {?}\n     */\n    get focused() {\n        return this._focused || this._panelOpen;\n    }\n    /**\n     * Placeholder to be shown if no value has been selected.\n     * @return {?}\n     */\n    get placeholder() { return this._placeholder; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set placeholder(value) {\n        this._placeholder = value;\n        this.stateChanges.next();\n    }\n    /**\n     * Whether the component is required.\n     * @return {?}\n     */\n    get required() { return this._required; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set required(value) {\n        this._required = coerceBooleanProperty(value);\n        this.stateChanges.next();\n    }\n    /**\n     * Whether the user should be allowed to select multiple options.\n     * @return {?}\n     */\n    get multiple() { return this._multiple; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set multiple(value) {\n        if (this._selectionModel) {\n            throw getMatSelectDynamicMultipleError();\n        }\n        this._multiple = coerceBooleanProperty(value);\n    }\n    /**\n     * Whether to center the active option over the trigger.\n     * @return {?}\n     */\n    get disableOptionCentering() { return this._disableOptionCentering; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disableOptionCentering(value) {\n        this._disableOptionCentering = coerceBooleanProperty(value);\n    }\n    /**\n     * Function to compare the option values with the selected values. The first argument\n     * is a value from an option. The second is a value from the selection. A boolean\n     * should be returned.\n     * @return {?}\n     */\n    get compareWith() { return this._compareWith; }\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    set compareWith(fn) {\n        if (typeof fn !== 'function') {\n            throw getMatSelectNonFunctionValueError();\n        }\n        this._compareWith = fn;\n        if (this._selectionModel) {\n            // A different comparator means the selection could change.\n            this._initializeSelection();\n        }\n    }\n    /**\n     * Value of the select control.\n     * @return {?}\n     */\n    get value() { return this._value; }\n    /**\n     * @param {?} newValue\n     * @return {?}\n     */\n    set value(newValue) {\n        if (newValue !== this._value) {\n            this.writeValue(newValue);\n            this._value = newValue;\n        }\n    }\n    /**\n     * Time to wait in milliseconds after the last keystroke before moving focus to an item.\n     * @return {?}\n     */\n    get typeaheadDebounceInterval() { return this._typeaheadDebounceInterval; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set typeaheadDebounceInterval(value) {\n        this._typeaheadDebounceInterval = coerceNumberProperty(value);\n    }\n    /**\n     * Unique id of the element.\n     * @return {?}\n     */\n    get id() { return this._id; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set id(value) {\n        this._id = value || this._uid;\n        this.stateChanges.next();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this._selectionModel = new SelectionModel(this.multiple);\n        this.stateChanges.next();\n        // We need `distinctUntilChanged` here, because some browsers will\n        // fire the animation end event twice for the same animation. See:\n        // https://github.com/angular/angular/issues/24084\n        this._panelDoneAnimatingStream\n            .pipe(distinctUntilChanged(), takeUntil(this._destroy))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => {\n            if (this.panelOpen) {\n                this._scrollTop = 0;\n                this.openedChange.emit(true);\n            }\n            else {\n                this.openedChange.emit(false);\n                this.overlayDir.offsetX = 0;\n                this._changeDetectorRef.markForCheck();\n            }\n        }));\n        this._viewportRuler.change()\n            .pipe(takeUntil(this._destroy))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => {\n            if (this._panelOpen) {\n                this._triggerRect = this.trigger.nativeElement.getBoundingClientRect();\n                this._changeDetectorRef.markForCheck();\n            }\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this._initKeyManager();\n        this._selectionModel.changed.pipe(takeUntil(this._destroy)).subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            event.added.forEach((/**\n             * @param {?} option\n             * @return {?}\n             */\n            option => option.select()));\n            event.removed.forEach((/**\n             * @param {?} option\n             * @return {?}\n             */\n            option => option.deselect()));\n        }));\n        this.options.changes.pipe(startWith(null), takeUntil(this._destroy)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._resetOptions();\n            this._initializeSelection();\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    ngDoCheck() {\n        if (this.ngControl) {\n            this.updateErrorState();\n        }\n    }\n    /**\n     * @param {?} changes\n     * @return {?}\n     */\n    ngOnChanges(changes) {\n        // Updating the disabled state is handled by `mixinDisabled`, but we need to additionally let\n        // the parent form field know to run change detection when the disabled state changes.\n        if (changes['disabled']) {\n            this.stateChanges.next();\n        }\n        if (changes['typeaheadDebounceInterval'] && this._keyManager) {\n            this._keyManager.withTypeAhead(this._typeaheadDebounceInterval);\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._destroy.next();\n        this._destroy.complete();\n        this.stateChanges.complete();\n    }\n    /**\n     * Toggles the overlay panel open or closed.\n     * @return {?}\n     */\n    toggle() {\n        this.panelOpen ? this.close() : this.open();\n    }\n    /**\n     * Opens the overlay panel.\n     * @return {?}\n     */\n    open() {\n        if (this.disabled || !this.options || !this.options.length || this._panelOpen) {\n            return;\n        }\n        this._triggerRect = this.trigger.nativeElement.getBoundingClientRect();\n        // Note: The computed font-size will be a string pixel value (e.g. \"16px\").\n        // `parseInt` ignores the trailing 'px' and converts this to a number.\n        this._triggerFontSize = parseInt(getComputedStyle(this.trigger.nativeElement).fontSize || '0');\n        this._panelOpen = true;\n        this._keyManager.withHorizontalOrientation(null);\n        this._calculateOverlayPosition();\n        this._highlightCorrectOption();\n        this._changeDetectorRef.markForCheck();\n        // Set the font size on the panel element once it exists.\n        this._ngZone.onStable.asObservable().pipe(take(1)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            if (this._triggerFontSize && this.overlayDir.overlayRef &&\n                this.overlayDir.overlayRef.overlayElement) {\n                this.overlayDir.overlayRef.overlayElement.style.fontSize = `${this._triggerFontSize}px`;\n            }\n        }));\n    }\n    /**\n     * Closes the overlay panel and focuses the host element.\n     * @return {?}\n     */\n    close() {\n        if (this._panelOpen) {\n            this._panelOpen = false;\n            this._keyManager.withHorizontalOrientation(this._isRtl() ? 'rtl' : 'ltr');\n            this._changeDetectorRef.markForCheck();\n            this._onTouched();\n        }\n    }\n    /**\n     * Sets the select's value. Part of the ControlValueAccessor interface\n     * required to integrate with Angular's core forms API.\n     *\n     * @param {?} value New value to be written to the model.\n     * @return {?}\n     */\n    writeValue(value) {\n        if (this.options) {\n            this._setSelectionByValue(value);\n        }\n    }\n    /**\n     * Saves a callback function to be invoked when the select's value\n     * changes from user input. Part of the ControlValueAccessor interface\n     * required to integrate with Angular's core forms API.\n     *\n     * @param {?} fn Callback to be triggered when the value changes.\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._onChange = fn;\n    }\n    /**\n     * Saves a callback function to be invoked when the select is blurred\n     * by the user. Part of the ControlValueAccessor interface required\n     * to integrate with Angular's core forms API.\n     *\n     * @param {?} fn Callback to be triggered when the component has been touched.\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this._onTouched = fn;\n    }\n    /**\n     * Disables the select. Part of the ControlValueAccessor interface required\n     * to integrate with Angular's core forms API.\n     *\n     * @param {?} isDisabled Sets whether the component is disabled.\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this.disabled = isDisabled;\n        this._changeDetectorRef.markForCheck();\n        this.stateChanges.next();\n    }\n    /**\n     * Whether or not the overlay panel is open.\n     * @return {?}\n     */\n    get panelOpen() {\n        return this._panelOpen;\n    }\n    /**\n     * The currently selected option.\n     * @return {?}\n     */\n    get selected() {\n        return this.multiple ? this._selectionModel.selected : this._selectionModel.selected[0];\n    }\n    /**\n     * The value displayed in the trigger.\n     * @return {?}\n     */\n    get triggerValue() {\n        if (this.empty) {\n            return '';\n        }\n        if (this._multiple) {\n            /** @type {?} */\n            const selectedOptions = this._selectionModel.selected.map((/**\n             * @param {?} option\n             * @return {?}\n             */\n            option => option.viewValue));\n            if (this._isRtl()) {\n                selectedOptions.reverse();\n            }\n            // TODO(crisbeto): delimiter should be configurable for proper localization.\n            return selectedOptions.join(', ');\n        }\n        return this._selectionModel.selected[0].viewValue;\n    }\n    /**\n     * Whether the element is in RTL mode.\n     * @return {?}\n     */\n    _isRtl() {\n        return this._dir ? this._dir.value === 'rtl' : false;\n    }\n    /**\n     * Handles all keydown events on the select.\n     * @param {?} event\n     * @return {?}\n     */\n    _handleKeydown(event) {\n        if (!this.disabled) {\n            this.panelOpen ? this._handleOpenKeydown(event) : this._handleClosedKeydown(event);\n        }\n    }\n    /**\n     * Handles keyboard events while the select is closed.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _handleClosedKeydown(event) {\n        /** @type {?} */\n        const keyCode = event.keyCode;\n        /** @type {?} */\n        const isArrowKey = keyCode === DOWN_ARROW || keyCode === UP_ARROW ||\n            keyCode === LEFT_ARROW || keyCode === RIGHT_ARROW;\n        /** @type {?} */\n        const isOpenKey = keyCode === ENTER || keyCode === SPACE;\n        /** @type {?} */\n        const manager = this._keyManager;\n        // Open the select on ALT + arrow key to match the native <select>\n        if (!manager.isTyping() && (isOpenKey && !hasModifierKey(event)) ||\n            ((this.multiple || event.altKey) && isArrowKey)) {\n            event.preventDefault(); // prevents the page from scrolling down when pressing space\n            this.open();\n        }\n        else if (!this.multiple) {\n            /** @type {?} */\n            const previouslySelectedOption = this.selected;\n            if (keyCode === HOME || keyCode === END) {\n                keyCode === HOME ? manager.setFirstItemActive() : manager.setLastItemActive();\n                event.preventDefault();\n            }\n            else {\n                manager.onKeydown(event);\n            }\n            /** @type {?} */\n            const selectedOption = this.selected;\n            // Since the value has changed, we need to announce it ourselves.\n            if (selectedOption && previouslySelectedOption !== selectedOption) {\n                // We set a duration on the live announcement, because we want the live element to be\n                // cleared after a while so that users can't navigate to it using the arrow keys.\n                this._liveAnnouncer.announce(((/** @type {?} */ (selectedOption))).viewValue, 10000);\n            }\n        }\n    }\n    /**\n     * Handles keyboard events when the selected is open.\n     * @private\n     * @param {?} event\n     * @return {?}\n     */\n    _handleOpenKeydown(event) {\n        /** @type {?} */\n        const manager = this._keyManager;\n        /** @type {?} */\n        const keyCode = event.keyCode;\n        /** @type {?} */\n        const isArrowKey = keyCode === DOWN_ARROW || keyCode === UP_ARROW;\n        /** @type {?} */\n        const isTyping = manager.isTyping();\n        if (keyCode === HOME || keyCode === END) {\n            event.preventDefault();\n            keyCode === HOME ? manager.setFirstItemActive() : manager.setLastItemActive();\n        }\n        else if (isArrowKey && event.altKey) {\n            // Close the select on ALT + arrow key to match the native <select>\n            event.preventDefault();\n            this.close();\n            // Don't do anything in this case if the user is typing,\n            // because the typing sequence can include the space key.\n        }\n        else if (!isTyping && (keyCode === ENTER || keyCode === SPACE) && manager.activeItem &&\n            !hasModifierKey(event)) {\n            event.preventDefault();\n            manager.activeItem._selectViaInteraction();\n        }\n        else if (!isTyping && this._multiple && keyCode === A && event.ctrlKey) {\n            event.preventDefault();\n            /** @type {?} */\n            const hasDeselectedOptions = this.options.some((/**\n             * @param {?} opt\n             * @return {?}\n             */\n            opt => !opt.disabled && !opt.selected));\n            this.options.forEach((/**\n             * @param {?} option\n             * @return {?}\n             */\n            option => {\n                if (!option.disabled) {\n                    hasDeselectedOptions ? option.select() : option.deselect();\n                }\n            }));\n        }\n        else {\n            /** @type {?} */\n            const previouslyFocusedIndex = manager.activeItemIndex;\n            manager.onKeydown(event);\n            if (this._multiple && isArrowKey && event.shiftKey && manager.activeItem &&\n                manager.activeItemIndex !== previouslyFocusedIndex) {\n                manager.activeItem._selectViaInteraction();\n            }\n        }\n    }\n    /**\n     * @return {?}\n     */\n    _onFocus() {\n        if (!this.disabled) {\n            this._focused = true;\n            this.stateChanges.next();\n        }\n    }\n    /**\n     * Calls the touched callback only if the panel is closed. Otherwise, the trigger will\n     * \"blur\" to the panel when it opens, causing a false positive.\n     * @return {?}\n     */\n    _onBlur() {\n        this._focused = false;\n        if (!this.disabled && !this.panelOpen) {\n            this._onTouched();\n            this._changeDetectorRef.markForCheck();\n            this.stateChanges.next();\n        }\n    }\n    /**\n     * Callback that is invoked when the overlay panel has been attached.\n     * @return {?}\n     */\n    _onAttached() {\n        this.overlayDir.positionChange.pipe(take(1)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._changeDetectorRef.detectChanges();\n            this._calculateOverlayOffsetX();\n            this.panel.nativeElement.scrollTop = this._scrollTop;\n        }));\n    }\n    /**\n     * Returns the theme to be used on the panel.\n     * @return {?}\n     */\n    _getPanelTheme() {\n        return this._parentFormField ? `mat-${this._parentFormField.color}` : '';\n    }\n    /**\n     * Whether the select has a value.\n     * @return {?}\n     */\n    get empty() {\n        return !this._selectionModel || this._selectionModel.isEmpty();\n    }\n    /**\n     * @private\n     * @return {?}\n     */\n    _initializeSelection() {\n        // Defer setting the value in order to avoid the \"Expression\n        // has changed after it was checked\" errors from Angular.\n        Promise.resolve().then((/**\n         * @return {?}\n         */\n        () => {\n            this._setSelectionByValue(this.ngControl ? this.ngControl.value : this._value);\n            this.stateChanges.next();\n        }));\n    }\n    /**\n     * Sets the selected option based on a value. If no option can be\n     * found with the designated value, the select trigger is cleared.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _setSelectionByValue(value) {\n        if (this.multiple && value) {\n            if (!Array.isArray(value)) {\n                throw getMatSelectNonArrayValueError();\n            }\n            this._selectionModel.clear();\n            value.forEach((/**\n             * @param {?} currentValue\n             * @return {?}\n             */\n            (currentValue) => this._selectValue(currentValue)));\n            this._sortValues();\n        }\n        else {\n            this._selectionModel.clear();\n            /** @type {?} */\n            const correspondingOption = this._selectValue(value);\n            // Shift focus to the active item. Note that we shouldn't do this in multiple\n            // mode, because we don't know what option the user interacted with last.\n            if (correspondingOption) {\n                this._keyManager.setActiveItem(correspondingOption);\n            }\n            else if (!this.panelOpen) {\n                // Otherwise reset the highlighted option. Note that we only want to do this while\n                // closed, because doing it while open can shift the user's focus unnecessarily.\n                this._keyManager.setActiveItem(-1);\n            }\n        }\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * Finds and selects and option based on its value.\n     * @private\n     * @param {?} value\n     * @return {?} Option that has the corresponding value.\n     */\n    _selectValue(value) {\n        /** @type {?} */\n        const correspondingOption = this.options.find((/**\n         * @param {?} option\n         * @return {?}\n         */\n        (option) => {\n            try {\n                // Treat null as a special reset value.\n                return option.value != null && this._compareWith(option.value, value);\n            }\n            catch (error) {\n                if (isDevMode()) {\n                    // Notify developers of errors in their comparator.\n                    console.warn(error);\n                }\n                return false;\n            }\n        }));\n        if (correspondingOption) {\n            this._selectionModel.select(correspondingOption);\n        }\n        return correspondingOption;\n    }\n    /**\n     * Sets up a key manager to listen to keyboard events on the overlay panel.\n     * @private\n     * @return {?}\n     */\n    _initKeyManager() {\n        this._keyManager = new ActiveDescendantKeyManager(this.options)\n            .withTypeAhead(this._typeaheadDebounceInterval)\n            .withVerticalOrientation()\n            .withHorizontalOrientation(this._isRtl() ? 'rtl' : 'ltr')\n            .withAllowedModifierKeys(['shiftKey']);\n        this._keyManager.tabOut.pipe(takeUntil(this._destroy)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            if (this.panelOpen) {\n                // Select the active item when tabbing away. This is consistent with how the native\n                // select behaves. Note that we only want to do this in single selection mode.\n                if (!this.multiple && this._keyManager.activeItem) {\n                    this._keyManager.activeItem._selectViaInteraction();\n                }\n                // Restore focus to the trigger before closing. Ensures that the focus\n                // position won't be lost if the user got focus into the overlay.\n                this.focus();\n                this.close();\n            }\n        }));\n        this._keyManager.change.pipe(takeUntil(this._destroy)).subscribe((/**\n         * @return {?}\n         */\n        () => {\n            if (this._panelOpen && this.panel) {\n                this._scrollActiveOptionIntoView();\n            }\n            else if (!this._panelOpen && !this.multiple && this._keyManager.activeItem) {\n                this._keyManager.activeItem._selectViaInteraction();\n            }\n        }));\n    }\n    /**\n     * Drops current option subscriptions and IDs and resets from scratch.\n     * @private\n     * @return {?}\n     */\n    _resetOptions() {\n        /** @type {?} */\n        const changedOrDestroyed = merge(this.options.changes, this._destroy);\n        this.optionSelectionChanges.pipe(takeUntil(changedOrDestroyed)).subscribe((/**\n         * @param {?} event\n         * @return {?}\n         */\n        event => {\n            this._onSelect(event.source, event.isUserInput);\n            if (event.isUserInput && !this.multiple && this._panelOpen) {\n                this.close();\n                this.focus();\n            }\n        }));\n        // Listen to changes in the internal state of the options and react accordingly.\n        // Handles cases like the labels of the selected options changing.\n        merge(...this.options.map((/**\n         * @param {?} option\n         * @return {?}\n         */\n        option => option._stateChanges)))\n            .pipe(takeUntil(changedOrDestroyed))\n            .subscribe((/**\n         * @return {?}\n         */\n        () => {\n            this._changeDetectorRef.markForCheck();\n            this.stateChanges.next();\n        }));\n        this._setOptionIds();\n    }\n    /**\n     * Invoked when an option is clicked.\n     * @private\n     * @param {?} option\n     * @param {?} isUserInput\n     * @return {?}\n     */\n    _onSelect(option, isUserInput) {\n        /** @type {?} */\n        const wasSelected = this._selectionModel.isSelected(option);\n        if (option.value == null && !this._multiple) {\n            option.deselect();\n            this._selectionModel.clear();\n            this._propagateChanges(option.value);\n        }\n        else {\n            if (wasSelected !== option.selected) {\n                option.selected ? this._selectionModel.select(option) :\n                    this._selectionModel.deselect(option);\n            }\n            if (isUserInput) {\n                this._keyManager.setActiveItem(option);\n            }\n            if (this.multiple) {\n                this._sortValues();\n                if (isUserInput) {\n                    // In case the user selected the option with their mouse, we\n                    // want to restore focus back to the trigger, in order to\n                    // prevent the select keyboard controls from clashing with\n                    // the ones from `mat-option`.\n                    this.focus();\n                }\n            }\n        }\n        if (wasSelected !== this._selectionModel.isSelected(option)) {\n            this._propagateChanges();\n        }\n        this.stateChanges.next();\n    }\n    /**\n     * Sorts the selected values in the selected based on their order in the panel.\n     * @private\n     * @return {?}\n     */\n    _sortValues() {\n        if (this.multiple) {\n            /** @type {?} */\n            const options = this.options.toArray();\n            this._selectionModel.sort((/**\n             * @param {?} a\n             * @param {?} b\n             * @return {?}\n             */\n            (a, b) => {\n                return this.sortComparator ? this.sortComparator(a, b, options) :\n                    options.indexOf(a) - options.indexOf(b);\n            }));\n            this.stateChanges.next();\n        }\n    }\n    /**\n     * Emits change event to set the model value.\n     * @private\n     * @param {?=} fallbackValue\n     * @return {?}\n     */\n    _propagateChanges(fallbackValue) {\n        /** @type {?} */\n        let valueToEmit = null;\n        if (this.multiple) {\n            valueToEmit = ((/** @type {?} */ (this.selected))).map((/**\n             * @param {?} option\n             * @return {?}\n             */\n            option => option.value));\n        }\n        else {\n            valueToEmit = this.selected ? ((/** @type {?} */ (this.selected))).value : fallbackValue;\n        }\n        this._value = valueToEmit;\n        this.valueChange.emit(valueToEmit);\n        this._onChange(valueToEmit);\n        this.selectionChange.emit(new MatSelectChange(this, valueToEmit));\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * Records option IDs to pass to the aria-owns property.\n     * @private\n     * @return {?}\n     */\n    _setOptionIds() {\n        this._optionIds = this.options.map((/**\n         * @param {?} option\n         * @return {?}\n         */\n        option => option.id)).join(' ');\n    }\n    /**\n     * Highlights the selected item. If no option is selected, it will highlight\n     * the first item instead.\n     * @private\n     * @return {?}\n     */\n    _highlightCorrectOption() {\n        if (this._keyManager) {\n            if (this.empty) {\n                this._keyManager.setFirstItemActive();\n            }\n            else {\n                this._keyManager.setActiveItem(this._selectionModel.selected[0]);\n            }\n        }\n    }\n    /**\n     * Scrolls the active option into view.\n     * @private\n     * @return {?}\n     */\n    _scrollActiveOptionIntoView() {\n        /** @type {?} */\n        const activeOptionIndex = this._keyManager.activeItemIndex || 0;\n        /** @type {?} */\n        const labelCount = _countGroupLabelsBeforeOption(activeOptionIndex, this.options, this.optionGroups);\n        this.panel.nativeElement.scrollTop = _getOptionScrollPosition(activeOptionIndex + labelCount, this._getItemHeight(), this.panel.nativeElement.scrollTop, SELECT_PANEL_MAX_HEIGHT);\n    }\n    /**\n     * Focuses the select element.\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(options) {\n        this._elementRef.nativeElement.focus(options);\n    }\n    /**\n     * Gets the index of the provided option in the option list.\n     * @private\n     * @param {?} option\n     * @return {?}\n     */\n    _getOptionIndex(option) {\n        return this.options.reduce((/**\n         * @param {?} result\n         * @param {?} current\n         * @param {?} index\n         * @return {?}\n         */\n        (result, current, index) => {\n            if (result !== undefined) {\n                return result;\n            }\n            return option === current ? index : undefined;\n        }), undefined);\n    }\n    /**\n     * Calculates the scroll position and x- and y-offsets of the overlay panel.\n     * @private\n     * @return {?}\n     */\n    _calculateOverlayPosition() {\n        /** @type {?} */\n        const itemHeight = this._getItemHeight();\n        /** @type {?} */\n        const items = this._getItemCount();\n        /** @type {?} */\n        const panelHeight = Math.min(items * itemHeight, SELECT_PANEL_MAX_HEIGHT);\n        /** @type {?} */\n        const scrollContainerHeight = items * itemHeight;\n        // The farthest the panel can be scrolled before it hits the bottom\n        /** @type {?} */\n        const maxScroll = scrollContainerHeight - panelHeight;\n        // If no value is selected we open the popup to the first item.\n        /** @type {?} */\n        let selectedOptionOffset = this.empty ? 0 : (/** @type {?} */ (this._getOptionIndex(this._selectionModel.selected[0])));\n        selectedOptionOffset += _countGroupLabelsBeforeOption(selectedOptionOffset, this.options, this.optionGroups);\n        // We must maintain a scroll buffer so the selected option will be scrolled to the\n        // center of the overlay panel rather than the top.\n        /** @type {?} */\n        const scrollBuffer = panelHeight / 2;\n        this._scrollTop = this._calculateOverlayScroll(selectedOptionOffset, scrollBuffer, maxScroll);\n        this._offsetY = this._calculateOverlayOffsetY(selectedOptionOffset, scrollBuffer, maxScroll);\n        this._checkOverlayWithinViewport(maxScroll);\n    }\n    /**\n     * Calculates the scroll position of the select's overlay panel.\n     *\n     * Attempts to center the selected option in the panel. If the option is\n     * too high or too low in the panel to be scrolled to the center, it clamps the\n     * scroll position to the min or max scroll positions respectively.\n     * @param {?} selectedIndex\n     * @param {?} scrollBuffer\n     * @param {?} maxScroll\n     * @return {?}\n     */\n    _calculateOverlayScroll(selectedIndex, scrollBuffer, maxScroll) {\n        /** @type {?} */\n        const itemHeight = this._getItemHeight();\n        /** @type {?} */\n        const optionOffsetFromScrollTop = itemHeight * selectedIndex;\n        /** @type {?} */\n        const halfOptionHeight = itemHeight / 2;\n        // Starts at the optionOffsetFromScrollTop, which scrolls the option to the top of the\n        // scroll container, then subtracts the scroll buffer to scroll the option down to\n        // the center of the overlay panel. Half the option height must be re-added to the\n        // scrollTop so the option is centered based on its middle, not its top edge.\n        /** @type {?} */\n        const optimalScrollPosition = optionOffsetFromScrollTop - scrollBuffer + halfOptionHeight;\n        return Math.min(Math.max(0, optimalScrollPosition), maxScroll);\n    }\n    /**\n     * Returns the aria-label of the select component.\n     * @return {?}\n     */\n    _getAriaLabel() {\n        // If an ariaLabelledby value has been set by the consumer, the select should not overwrite the\n        // `aria-labelledby` value by setting the ariaLabel to the placeholder.\n        return this.ariaLabelledby ? null : this.ariaLabel || this.placeholder;\n    }\n    /**\n     * Returns the aria-labelledby of the select component.\n     * @return {?}\n     */\n    _getAriaLabelledby() {\n        if (this.ariaLabelledby) {\n            return this.ariaLabelledby;\n        }\n        // Note: we use `_getAriaLabel` here, because we want to check whether there's a\n        // computed label. `this.ariaLabel` is only the user-specified label.\n        if (!this._parentFormField || !this._parentFormField._hasFloatingLabel() ||\n            this._getAriaLabel()) {\n            return null;\n        }\n        return this._parentFormField._labelId || null;\n    }\n    /**\n     * Determines the `aria-activedescendant` to be set on the host.\n     * @return {?}\n     */\n    _getAriaActiveDescendant() {\n        if (this.panelOpen && this._keyManager && this._keyManager.activeItem) {\n            return this._keyManager.activeItem.id;\n        }\n        return null;\n    }\n    /**\n     * Sets the x-offset of the overlay panel in relation to the trigger's top start corner.\n     * This must be adjusted to align the selected option text over the trigger text when\n     * the panel opens. Will change based on LTR or RTL text direction. Note that the offset\n     * can't be calculated until the panel has been attached, because we need to know the\n     * content width in order to constrain the panel within the viewport.\n     * @private\n     * @return {?}\n     */\n    _calculateOverlayOffsetX() {\n        /** @type {?} */\n        const overlayRect = this.overlayDir.overlayRef.overlayElement.getBoundingClientRect();\n        /** @type {?} */\n        const viewportSize = this._viewportRuler.getViewportSize();\n        /** @type {?} */\n        const isRtl = this._isRtl();\n        /** @type {?} */\n        const paddingWidth = this.multiple ? SELECT_MULTIPLE_PANEL_PADDING_X + SELECT_PANEL_PADDING_X :\n            SELECT_PANEL_PADDING_X * 2;\n        /** @type {?} */\n        let offsetX;\n        // Adjust the offset, depending on the option padding.\n        if (this.multiple) {\n            offsetX = SELECT_MULTIPLE_PANEL_PADDING_X;\n        }\n        else {\n            /** @type {?} */\n            let selected = this._selectionModel.selected[0] || this.options.first;\n            offsetX = selected && selected.group ? SELECT_PANEL_INDENT_PADDING_X : SELECT_PANEL_PADDING_X;\n        }\n        // Invert the offset in LTR.\n        if (!isRtl) {\n            offsetX *= -1;\n        }\n        // Determine how much the select overflows on each side.\n        /** @type {?} */\n        const leftOverflow = 0 - (overlayRect.left + offsetX - (isRtl ? paddingWidth : 0));\n        /** @type {?} */\n        const rightOverflow = overlayRect.right + offsetX - viewportSize.width\n            + (isRtl ? 0 : paddingWidth);\n        // If the element overflows on either side, reduce the offset to allow it to fit.\n        if (leftOverflow > 0) {\n            offsetX += leftOverflow + SELECT_PANEL_VIEWPORT_PADDING;\n        }\n        else if (rightOverflow > 0) {\n            offsetX -= rightOverflow + SELECT_PANEL_VIEWPORT_PADDING;\n        }\n        // Set the offset directly in order to avoid having to go through change detection and\n        // potentially triggering \"changed after it was checked\" errors. Round the value to avoid\n        // blurry content in some browsers.\n        this.overlayDir.offsetX = Math.round(offsetX);\n        this.overlayDir.overlayRef.updatePosition();\n    }\n    /**\n     * Calculates the y-offset of the select's overlay panel in relation to the\n     * top start corner of the trigger. It has to be adjusted in order for the\n     * selected option to be aligned over the trigger when the panel opens.\n     * @private\n     * @param {?} selectedIndex\n     * @param {?} scrollBuffer\n     * @param {?} maxScroll\n     * @return {?}\n     */\n    _calculateOverlayOffsetY(selectedIndex, scrollBuffer, maxScroll) {\n        /** @type {?} */\n        const itemHeight = this._getItemHeight();\n        /** @type {?} */\n        const optionHeightAdjustment = (itemHeight - this._triggerRect.height) / 2;\n        /** @type {?} */\n        const maxOptionsDisplayed = Math.floor(SELECT_PANEL_MAX_HEIGHT / itemHeight);\n        /** @type {?} */\n        let optionOffsetFromPanelTop;\n        // Disable offset if requested by user by returning 0 as value to offset\n        if (this._disableOptionCentering) {\n            return 0;\n        }\n        if (this._scrollTop === 0) {\n            optionOffsetFromPanelTop = selectedIndex * itemHeight;\n        }\n        else if (this._scrollTop === maxScroll) {\n            /** @type {?} */\n            const firstDisplayedIndex = this._getItemCount() - maxOptionsDisplayed;\n            /** @type {?} */\n            const selectedDisplayIndex = selectedIndex - firstDisplayedIndex;\n            // The first item is partially out of the viewport. Therefore we need to calculate what\n            // portion of it is shown in the viewport and account for it in our offset.\n            /** @type {?} */\n            let partialItemHeight = itemHeight - (this._getItemCount() * itemHeight - SELECT_PANEL_MAX_HEIGHT) % itemHeight;\n            // Because the panel height is longer than the height of the options alone,\n            // there is always extra padding at the top or bottom of the panel. When\n            // scrolled to the very bottom, this padding is at the top of the panel and\n            // must be added to the offset.\n            optionOffsetFromPanelTop = selectedDisplayIndex * itemHeight + partialItemHeight;\n        }\n        else {\n            // If the option was scrolled to the middle of the panel using a scroll buffer,\n            // its offset will be the scroll buffer minus the half height that was added to\n            // center it.\n            optionOffsetFromPanelTop = scrollBuffer - itemHeight / 2;\n        }\n        // The final offset is the option's offset from the top, adjusted for the height difference,\n        // multiplied by -1 to ensure that the overlay moves in the correct direction up the page.\n        // The value is rounded to prevent some browsers from blurring the content.\n        return Math.round(optionOffsetFromPanelTop * -1 - optionHeightAdjustment);\n    }\n    /**\n     * Checks that the attempted overlay position will fit within the viewport.\n     * If it will not fit, tries to adjust the scroll position and the associated\n     * y-offset so the panel can open fully on-screen. If it still won't fit,\n     * sets the offset back to 0 to allow the fallback position to take over.\n     * @private\n     * @param {?} maxScroll\n     * @return {?}\n     */\n    _checkOverlayWithinViewport(maxScroll) {\n        /** @type {?} */\n        const itemHeight = this._getItemHeight();\n        /** @type {?} */\n        const viewportSize = this._viewportRuler.getViewportSize();\n        /** @type {?} */\n        const topSpaceAvailable = this._triggerRect.top - SELECT_PANEL_VIEWPORT_PADDING;\n        /** @type {?} */\n        const bottomSpaceAvailable = viewportSize.height - this._triggerRect.bottom - SELECT_PANEL_VIEWPORT_PADDING;\n        /** @type {?} */\n        const panelHeightTop = Math.abs(this._offsetY);\n        /** @type {?} */\n        const totalPanelHeight = Math.min(this._getItemCount() * itemHeight, SELECT_PANEL_MAX_HEIGHT);\n        /** @type {?} */\n        const panelHeightBottom = totalPanelHeight - panelHeightTop - this._triggerRect.height;\n        if (panelHeightBottom > bottomSpaceAvailable) {\n            this._adjustPanelUp(panelHeightBottom, bottomSpaceAvailable);\n        }\n        else if (panelHeightTop > topSpaceAvailable) {\n            this._adjustPanelDown(panelHeightTop, topSpaceAvailable, maxScroll);\n        }\n        else {\n            this._transformOrigin = this._getOriginBasedOnOption();\n        }\n    }\n    /**\n     * Adjusts the overlay panel up to fit in the viewport.\n     * @private\n     * @param {?} panelHeightBottom\n     * @param {?} bottomSpaceAvailable\n     * @return {?}\n     */\n    _adjustPanelUp(panelHeightBottom, bottomSpaceAvailable) {\n        // Browsers ignore fractional scroll offsets, so we need to round.\n        /** @type {?} */\n        const distanceBelowViewport = Math.round(panelHeightBottom - bottomSpaceAvailable);\n        // Scrolls the panel up by the distance it was extending past the boundary, then\n        // adjusts the offset by that amount to move the panel up into the viewport.\n        this._scrollTop -= distanceBelowViewport;\n        this._offsetY -= distanceBelowViewport;\n        this._transformOrigin = this._getOriginBasedOnOption();\n        // If the panel is scrolled to the very top, it won't be able to fit the panel\n        // by scrolling, so set the offset to 0 to allow the fallback position to take\n        // effect.\n        if (this._scrollTop <= 0) {\n            this._scrollTop = 0;\n            this._offsetY = 0;\n            this._transformOrigin = `50% bottom 0px`;\n        }\n    }\n    /**\n     * Adjusts the overlay panel down to fit in the viewport.\n     * @private\n     * @param {?} panelHeightTop\n     * @param {?} topSpaceAvailable\n     * @param {?} maxScroll\n     * @return {?}\n     */\n    _adjustPanelDown(panelHeightTop, topSpaceAvailable, maxScroll) {\n        // Browsers ignore fractional scroll offsets, so we need to round.\n        /** @type {?} */\n        const distanceAboveViewport = Math.round(panelHeightTop - topSpaceAvailable);\n        // Scrolls the panel down by the distance it was extending past the boundary, then\n        // adjusts the offset by that amount to move the panel down into the viewport.\n        this._scrollTop += distanceAboveViewport;\n        this._offsetY += distanceAboveViewport;\n        this._transformOrigin = this._getOriginBasedOnOption();\n        // If the panel is scrolled to the very bottom, it won't be able to fit the\n        // panel by scrolling, so set the offset to 0 to allow the fallback position\n        // to take effect.\n        if (this._scrollTop >= maxScroll) {\n            this._scrollTop = maxScroll;\n            this._offsetY = 0;\n            this._transformOrigin = `50% top 0px`;\n            return;\n        }\n    }\n    /**\n     * Sets the transform origin point based on the selected option.\n     * @private\n     * @return {?}\n     */\n    _getOriginBasedOnOption() {\n        /** @type {?} */\n        const itemHeight = this._getItemHeight();\n        /** @type {?} */\n        const optionHeightAdjustment = (itemHeight - this._triggerRect.height) / 2;\n        /** @type {?} */\n        const originY = Math.abs(this._offsetY) - optionHeightAdjustment + itemHeight / 2;\n        return `50% ${originY}px 0px`;\n    }\n    /**\n     * Calculates the amount of items in the select. This includes options and group labels.\n     * @private\n     * @return {?}\n     */\n    _getItemCount() {\n        return this.options.length + this.optionGroups.length;\n    }\n    /**\n     * Calculates the height of the select's options.\n     * @private\n     * @return {?}\n     */\n    _getItemHeight() {\n        return this._triggerFontSize * SELECT_ITEM_HEIGHT_EM;\n    }\n    /**\n     * Implemented as part of MatFormFieldControl.\n     * \\@docs-private\n     * @param {?} ids\n     * @return {?}\n     */\n    setDescribedByIds(ids) {\n        this._ariaDescribedby = ids.join(' ');\n    }\n    /**\n     * Implemented as part of MatFormFieldControl.\n     * \\@docs-private\n     * @return {?}\n     */\n    onContainerClick() {\n        this.focus();\n        this.open();\n    }\n    /**\n     * Implemented as part of MatFormFieldControl.\n     * \\@docs-private\n     * @return {?}\n     */\n    get shouldLabelFloat() {\n        return this._panelOpen || !this.empty;\n    }\n}\nMatSelect.ɵfac = function MatSelect_Factory(t) { return new (t || MatSelect)(ɵngcc0.ɵɵdirectiveInject(ɵngcc1.ViewportRuler), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.ErrorStateMatcher), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc3.Directionality, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc4.NgForm, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc4.FormGroupDirective, 8), ɵngcc0.ɵɵdirectiveInject(MAT_FORM_FIELD, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc4.NgControl, 10), ɵngcc0.ɵɵinjectAttribute('tabindex'), ɵngcc0.ɵɵdirectiveInject(MAT_SELECT_SCROLL_STRATEGY), ɵngcc0.ɵɵdirectiveInject(ɵngcc5.LiveAnnouncer), ɵngcc0.ɵɵdirectiveInject(MAT_SELECT_CONFIG, 8)); };\nMatSelect.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatSelect, selectors: [[\"mat-select\"]], contentQueries: function MatSelect_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatSelectTrigger, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatOption, true);\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatOptgroup, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.customTrigger = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.options = _t);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.optionGroups = _t);\n    } }, viewQuery: function MatSelect_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n        ɵngcc0.ɵɵviewQuery(_c1, true);\n        ɵngcc0.ɵɵviewQuery(CdkConnectedOverlay, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.trigger = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.panel = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx.overlayDir = _t.first);\n    } }, hostAttrs: [\"role\", \"listbox\", 1, \"mat-select\"], hostVars: 19, hostBindings: function MatSelect_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"keydown\", function MatSelect_keydown_HostBindingHandler($event) { return ctx._handleKeydown($event); })(\"focus\", function MatSelect_focus_HostBindingHandler() { return ctx._onFocus(); })(\"blur\", function MatSelect_blur_HostBindingHandler() { return ctx._onBlur(); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"id\", ctx.id)(\"tabindex\", ctx.tabIndex)(\"aria-label\", ctx._getAriaLabel())(\"aria-labelledby\", ctx._getAriaLabelledby())(\"aria-required\", ctx.required.toString())(\"aria-disabled\", ctx.disabled.toString())(\"aria-invalid\", ctx.errorState)(\"aria-owns\", ctx.panelOpen ? ctx._optionIds : null)(\"aria-multiselectable\", ctx.multiple)(\"aria-describedby\", ctx._ariaDescribedby || null)(\"aria-activedescendant\", ctx._getAriaActiveDescendant());\n        ɵngcc0.ɵɵclassProp(\"mat-select-disabled\", ctx.disabled)(\"mat-select-invalid\", ctx.errorState)(\"mat-select-required\", ctx.required)(\"mat-select-empty\", ctx.empty);\n    } }, inputs: { disabled: \"disabled\", disableRipple: \"disableRipple\", tabIndex: \"tabIndex\", ariaLabel: [\"aria-label\", \"ariaLabel\"], id: \"id\", disableOptionCentering: \"disableOptionCentering\", typeaheadDebounceInterval: \"typeaheadDebounceInterval\", placeholder: \"placeholder\", required: \"required\", multiple: \"multiple\", compareWith: \"compareWith\", value: \"value\", panelClass: \"panelClass\", ariaLabelledby: [\"aria-labelledby\", \"ariaLabelledby\"], errorStateMatcher: \"errorStateMatcher\", sortComparator: \"sortComparator\" }, outputs: { openedChange: \"openedChange\", _openedStream: \"opened\", _closedStream: \"closed\", selectionChange: \"selectionChange\", valueChange: \"valueChange\" }, exportAs: [\"matSelect\"], features: [ɵngcc0.ɵɵProvidersFeature([\n            { provide: MatFormFieldControl, useExisting: MatSelect },\n            { provide: MAT_OPTION_PARENT_COMPONENT, useExisting: MatSelect }\n        ]), ɵngcc0.ɵɵInheritDefinitionFeature, ɵngcc0.ɵɵNgOnChangesFeature], ngContentSelectors: _c3, decls: 9, vars: 9, consts: [[\"cdk-overlay-origin\", \"\", \"aria-hidden\", \"true\", 1, \"mat-select-trigger\", 3, \"click\"], [\"origin\", \"cdkOverlayOrigin\", \"trigger\", \"\"], [1, \"mat-select-value\", 3, \"ngSwitch\"], [\"class\", \"mat-select-placeholder\", 4, \"ngSwitchCase\"], [\"class\", \"mat-select-value-text\", 3, \"ngSwitch\", 4, \"ngSwitchCase\"], [1, \"mat-select-arrow-wrapper\"], [1, \"mat-select-arrow\"], [\"cdk-connected-overlay\", \"\", \"cdkConnectedOverlayLockPosition\", \"\", \"cdkConnectedOverlayHasBackdrop\", \"\", \"cdkConnectedOverlayBackdropClass\", \"cdk-overlay-transparent-backdrop\", 3, \"cdkConnectedOverlayScrollStrategy\", \"cdkConnectedOverlayOrigin\", \"cdkConnectedOverlayOpen\", \"cdkConnectedOverlayPositions\", \"cdkConnectedOverlayMinWidth\", \"cdkConnectedOverlayOffsetY\", \"backdropClick\", \"attach\", \"detach\"], [1, \"mat-select-placeholder\"], [1, \"mat-select-value-text\", 3, \"ngSwitch\"], [4, \"ngSwitchDefault\"], [4, \"ngSwitchCase\"], [1, \"mat-select-panel-wrap\"], [3, \"ngClass\", \"keydown\"], [\"panel\", \"\"]], template: function MatSelect_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef(_c2);\n        ɵngcc0.ɵɵelementStart(0, \"div\", 0, 1);\n        ɵngcc0.ɵɵlistener(\"click\", function MatSelect_Template_div_click_0_listener() { return ctx.toggle(); });\n        ɵngcc0.ɵɵelementStart(3, \"div\", 2);\n        ɵngcc0.ɵɵtemplate(4, MatSelect_span_4_Template, 2, 1, \"span\", 3);\n        ɵngcc0.ɵɵtemplate(5, MatSelect_span_5_Template, 3, 2, \"span\", 4);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(6, \"div\", 5);\n        ɵngcc0.ɵɵelement(7, \"div\", 6);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵtemplate(8, MatSelect_ng_template_8_Template, 4, 11, \"ng-template\", 7);\n        ɵngcc0.ɵɵlistener(\"backdropClick\", function MatSelect_Template_ng_template_backdropClick_8_listener() { return ctx.close(); })(\"attach\", function MatSelect_Template_ng_template_attach_8_listener() { return ctx._onAttached(); })(\"detach\", function MatSelect_Template_ng_template_detach_8_listener() { return ctx.close(); });\n    } if (rf & 2) {\n        const _r0 = ɵngcc0.ɵɵreference(1);\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵproperty(\"ngSwitch\", ctx.empty);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngSwitchCase\", true);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngSwitchCase\", false);\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵproperty(\"cdkConnectedOverlayScrollStrategy\", ctx._scrollStrategy)(\"cdkConnectedOverlayOrigin\", _r0)(\"cdkConnectedOverlayOpen\", ctx.panelOpen)(\"cdkConnectedOverlayPositions\", ctx._positions)(\"cdkConnectedOverlayMinWidth\", ctx._triggerRect == null ? null : ctx._triggerRect.width)(\"cdkConnectedOverlayOffsetY\", ctx._offsetY);\n    } }, directives: [ɵngcc6.CdkOverlayOrigin, ɵngcc7.NgSwitch, ɵngcc7.NgSwitchCase, ɵngcc6.CdkConnectedOverlay, ɵngcc7.NgSwitchDefault, ɵngcc7.NgClass], styles: [\".mat-select{display:inline-block;width:100%;outline:none}.mat-select-trigger{display:inline-table;cursor:pointer;position:relative;box-sizing:border-box}.mat-select-disabled .mat-select-trigger{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-select-value{display:table-cell;max-width:0;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mat-select-value-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mat-select-arrow-wrapper{display:table-cell;vertical-align:middle}.mat-form-field-appearance-fill .mat-select-arrow-wrapper{transform:translateY(-50%)}.mat-form-field-appearance-outline .mat-select-arrow-wrapper{transform:translateY(-25%)}.mat-form-field-appearance-standard.mat-form-field-has-label .mat-select:not(.mat-select-empty) .mat-select-arrow-wrapper{transform:translateY(-50%)}.mat-form-field-appearance-standard .mat-select.mat-select-empty .mat-select-arrow-wrapper{transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}._mat-animation-noopable.mat-form-field-appearance-standard .mat-select.mat-select-empty .mat-select-arrow-wrapper{transition:none}.mat-select-arrow{width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid;margin:0 4px}.mat-select-panel-wrap{flex-basis:100%}.mat-select-panel{min-width:112px;max-width:280px;overflow:auto;-webkit-overflow-scrolling:touch;padding-top:0;padding-bottom:0;max-height:256px;min-width:100%;border-radius:4px}.cdk-high-contrast-active .mat-select-panel{outline:solid 1px}.mat-select-panel .mat-optgroup-label,.mat-select-panel .mat-option{font-size:inherit;line-height:3em;height:3em}.mat-form-field-type-mat-select:not(.mat-form-field-disabled) .mat-form-field-flex{cursor:pointer}.mat-form-field-type-mat-select .mat-form-field-label{width:calc(100% - 18px)}.mat-select-placeholder{transition:color 400ms 133.3333333333ms cubic-bezier(0.25, 0.8, 0.25, 1)}._mat-animation-noopable .mat-select-placeholder{transition:none}.mat-form-field-hide-placeholder .mat-select-placeholder{color:transparent;-webkit-text-fill-color:transparent;transition:none;display:block}\\n\"], encapsulation: 2, data: { animation: [\n            matSelectAnimations.transformPanelWrap,\n            matSelectAnimations.transformPanel\n        ] }, changeDetection: 0 });\n/** @nocollapse */\nMatSelect.ctorParameters = () => [\n    { type: ViewportRuler },\n    { type: ChangeDetectorRef },\n    { type: NgZone },\n    { type: ErrorStateMatcher },\n    { type: ElementRef },\n    { type: Directionality, decorators: [{ type: Optional }] },\n    { type: NgForm, decorators: [{ type: Optional }] },\n    { type: FormGroupDirective, decorators: [{ type: Optional }] },\n    { type: MatFormField, decorators: [{ type: Optional }, { type: Inject, args: [MAT_FORM_FIELD,] }] },\n    { type: NgControl, decorators: [{ type: Self }, { type: Optional }] },\n    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_SELECT_SCROLL_STRATEGY,] }] },\n    { type: LiveAnnouncer },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_SELECT_CONFIG,] }] }\n];\nMatSelect.propDecorators = {\n    trigger: [{ type: ViewChild, args: ['trigger',] }],\n    panel: [{ type: ViewChild, args: ['panel',] }],\n    overlayDir: [{ type: ViewChild, args: [CdkConnectedOverlay,] }],\n    options: [{ type: ContentChildren, args: [MatOption, { descendants: true },] }],\n    optionGroups: [{ type: ContentChildren, args: [MatOptgroup, { descendants: true },] }],\n    panelClass: [{ type: Input }],\n    customTrigger: [{ type: ContentChild, args: [MatSelectTrigger,] }],\n    placeholder: [{ type: Input }],\n    required: [{ type: Input }],\n    multiple: [{ type: Input }],\n    disableOptionCentering: [{ type: Input }],\n    compareWith: [{ type: Input }],\n    value: [{ type: Input }],\n    ariaLabel: [{ type: Input, args: ['aria-label',] }],\n    ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }],\n    errorStateMatcher: [{ type: Input }],\n    typeaheadDebounceInterval: [{ type: Input }],\n    sortComparator: [{ type: Input }],\n    id: [{ type: Input }],\n    openedChange: [{ type: Output }],\n    _openedStream: [{ type: Output, args: ['opened',] }],\n    _closedStream: [{ type: Output, args: ['closed',] }],\n    selectionChange: [{ type: Output }],\n    valueChange: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSelect, [{\n        type: Component,\n        args: [{\n                selector: 'mat-select',\n                exportAs: 'matSelect',\n                template: \"<div cdk-overlay-origin\\n     class=\\\"mat-select-trigger\\\"\\n     aria-hidden=\\\"true\\\"\\n     (click)=\\\"toggle()\\\"\\n     #origin=\\\"cdkOverlayOrigin\\\"\\n     #trigger>\\n  <div class=\\\"mat-select-value\\\" [ngSwitch]=\\\"empty\\\">\\n    <span class=\\\"mat-select-placeholder\\\" *ngSwitchCase=\\\"true\\\">{{placeholder || '\\\\u00A0'}}</span>\\n    <span class=\\\"mat-select-value-text\\\" *ngSwitchCase=\\\"false\\\" [ngSwitch]=\\\"!!customTrigger\\\">\\n      <span *ngSwitchDefault>{{triggerValue || '\\\\u00A0'}}</span>\\n      <ng-content select=\\\"mat-select-trigger\\\" *ngSwitchCase=\\\"true\\\"></ng-content>\\n    </span>\\n  </div>\\n\\n  <div class=\\\"mat-select-arrow-wrapper\\\"><div class=\\\"mat-select-arrow\\\"></div></div>\\n</div>\\n\\n<ng-template\\n  cdk-connected-overlay\\n  cdkConnectedOverlayLockPosition\\n  cdkConnectedOverlayHasBackdrop\\n  cdkConnectedOverlayBackdropClass=\\\"cdk-overlay-transparent-backdrop\\\"\\n  [cdkConnectedOverlayScrollStrategy]=\\\"_scrollStrategy\\\"\\n  [cdkConnectedOverlayOrigin]=\\\"origin\\\"\\n  [cdkConnectedOverlayOpen]=\\\"panelOpen\\\"\\n  [cdkConnectedOverlayPositions]=\\\"_positions\\\"\\n  [cdkConnectedOverlayMinWidth]=\\\"_triggerRect?.width\\\"\\n  [cdkConnectedOverlayOffsetY]=\\\"_offsetY\\\"\\n  (backdropClick)=\\\"close()\\\"\\n  (attach)=\\\"_onAttached()\\\"\\n  (detach)=\\\"close()\\\">\\n  <div class=\\\"mat-select-panel-wrap\\\" [@transformPanelWrap]>\\n    <div\\n      #panel\\n      [attr.id]=\\\"id + '-panel'\\\"\\n      class=\\\"mat-select-panel {{ _getPanelTheme() }}\\\"\\n      [ngClass]=\\\"panelClass\\\"\\n      [@transformPanel]=\\\"multiple ? 'showing-multiple' : 'showing'\\\"\\n      (@transformPanel.done)=\\\"_panelDoneAnimatingStream.next($event.toState)\\\"\\n      [style.transformOrigin]=\\\"_transformOrigin\\\"\\n      [style.font-size.px]=\\\"_triggerFontSize\\\"\\n      (keydown)=\\\"_handleKeydown($event)\\\">\\n      <ng-content></ng-content>\\n    </div>\\n  </div>\\n</ng-template>\\n\",\n                inputs: ['disabled', 'disableRipple', 'tabIndex'],\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                host: {\n                    'role': 'listbox',\n                    '[attr.id]': 'id',\n                    '[attr.tabindex]': 'tabIndex',\n                    '[attr.aria-label]': '_getAriaLabel()',\n                    '[attr.aria-labelledby]': '_getAriaLabelledby()',\n                    '[attr.aria-required]': 'required.toString()',\n                    '[attr.aria-disabled]': 'disabled.toString()',\n                    '[attr.aria-invalid]': 'errorState',\n                    '[attr.aria-owns]': 'panelOpen ? _optionIds : null',\n                    '[attr.aria-multiselectable]': 'multiple',\n                    '[attr.aria-describedby]': '_ariaDescribedby || null',\n                    '[attr.aria-activedescendant]': '_getAriaActiveDescendant()',\n                    '[class.mat-select-disabled]': 'disabled',\n                    '[class.mat-select-invalid]': 'errorState',\n                    '[class.mat-select-required]': 'required',\n                    '[class.mat-select-empty]': 'empty',\n                    'class': 'mat-select',\n                    '(keydown)': '_handleKeydown($event)',\n                    '(focus)': '_onFocus()',\n                    '(blur)': '_onBlur()'\n                },\n                animations: [\n                    matSelectAnimations.transformPanelWrap,\n                    matSelectAnimations.transformPanel\n                ],\n                providers: [\n                    { provide: MatFormFieldControl, useExisting: MatSelect },\n                    { provide: MAT_OPTION_PARENT_COMPONENT, useExisting: MatSelect }\n                ],\n                styles: [\".mat-select{display:inline-block;width:100%;outline:none}.mat-select-trigger{display:inline-table;cursor:pointer;position:relative;box-sizing:border-box}.mat-select-disabled .mat-select-trigger{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;cursor:default}.mat-select-value{display:table-cell;max-width:0;width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mat-select-value-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mat-select-arrow-wrapper{display:table-cell;vertical-align:middle}.mat-form-field-appearance-fill .mat-select-arrow-wrapper{transform:translateY(-50%)}.mat-form-field-appearance-outline .mat-select-arrow-wrapper{transform:translateY(-25%)}.mat-form-field-appearance-standard.mat-form-field-has-label .mat-select:not(.mat-select-empty) .mat-select-arrow-wrapper{transform:translateY(-50%)}.mat-form-field-appearance-standard .mat-select.mat-select-empty .mat-select-arrow-wrapper{transition:transform 400ms cubic-bezier(0.25, 0.8, 0.25, 1)}._mat-animation-noopable.mat-form-field-appearance-standard .mat-select.mat-select-empty .mat-select-arrow-wrapper{transition:none}.mat-select-arrow{width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:5px solid;margin:0 4px}.mat-select-panel-wrap{flex-basis:100%}.mat-select-panel{min-width:112px;max-width:280px;overflow:auto;-webkit-overflow-scrolling:touch;padding-top:0;padding-bottom:0;max-height:256px;min-width:100%;border-radius:4px}.cdk-high-contrast-active .mat-select-panel{outline:solid 1px}.mat-select-panel .mat-optgroup-label,.mat-select-panel .mat-option{font-size:inherit;line-height:3em;height:3em}.mat-form-field-type-mat-select:not(.mat-form-field-disabled) .mat-form-field-flex{cursor:pointer}.mat-form-field-type-mat-select .mat-form-field-label{width:calc(100% - 18px)}.mat-select-placeholder{transition:color 400ms 133.3333333333ms cubic-bezier(0.25, 0.8, 0.25, 1)}._mat-animation-noopable .mat-select-placeholder{transition:none}.mat-form-field-hide-placeholder .mat-select-placeholder{color:transparent;-webkit-text-fill-color:transparent;transition:none;display:block}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc1.ViewportRuler }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc0.NgZone }, { type: ɵngcc2.ErrorStateMatcher }, { type: ɵngcc0.ElementRef }, { type: ɵngcc3.Directionality, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc4.NgForm, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc4.FormGroupDirective, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc8.MatFormField, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_FORM_FIELD]\n            }] }, { type: ɵngcc4.NgControl, decorators: [{\n                type: Self\n            }, {\n                type: Optional\n            }] }, { type: String, decorators: [{\n                type: Attribute,\n                args: ['tabindex']\n            }] }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_SELECT_SCROLL_STRATEGY]\n            }] }, { type: ɵngcc5.LiveAnnouncer }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_SELECT_CONFIG]\n            }] }]; }, { ariaLabel: [{\n            type: Input,\n            args: ['aria-label']\n        }], openedChange: [{\n            type: Output\n        }], _openedStream: [{\n            type: Output,\n            args: ['opened']\n        }], _closedStream: [{\n            type: Output,\n            args: ['closed']\n        }], selectionChange: [{\n            type: Output\n        }], valueChange: [{\n            type: Output\n        }], id: [{\n            type: Input\n        }], disableOptionCentering: [{\n            type: Input\n        }], typeaheadDebounceInterval: [{\n            type: Input\n        }], placeholder: [{\n            type: Input\n        }], required: [{\n            type: Input\n        }], multiple: [{\n            type: Input\n        }], compareWith: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }], trigger: [{\n            type: ViewChild,\n            args: ['trigger']\n        }], panel: [{\n            type: ViewChild,\n            args: ['panel']\n        }], overlayDir: [{\n            type: ViewChild,\n            args: [CdkConnectedOverlay]\n        }], options: [{\n            type: ContentChildren,\n            args: [MatOption, { descendants: true }]\n        }], optionGroups: [{\n            type: ContentChildren,\n            args: [MatOptgroup, { descendants: true }]\n        }], panelClass: [{\n            type: Input\n        }], customTrigger: [{\n            type: ContentChild,\n            args: [MatSelectTrigger]\n        }], ariaLabelledby: [{\n            type: Input,\n            args: ['aria-labelledby']\n        }], errorStateMatcher: [{\n            type: Input\n        }], sortComparator: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatSelect.ngAcceptInputType_required;\n    /** @type {?} */\n    MatSelect.ngAcceptInputType_multiple;\n    /** @type {?} */\n    MatSelect.ngAcceptInputType_disableOptionCentering;\n    /** @type {?} */\n    MatSelect.ngAcceptInputType_typeaheadDebounceInterval;\n    /** @type {?} */\n    MatSelect.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatSelect.ngAcceptInputType_disableRipple;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._scrollStrategyFactory;\n    /**\n     * Whether or not the overlay panel is open.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._panelOpen;\n    /**\n     * Whether filling out the select is required in the form.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._required;\n    /**\n     * The scroll position of the overlay panel, calculated to center the selected option.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._scrollTop;\n    /**\n     * The placeholder displayed in the trigger of the select.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._placeholder;\n    /**\n     * Whether the component is in multiple selection mode.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._multiple;\n    /**\n     * Comparison function to specify which option is displayed. Defaults to object equality.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._compareWith;\n    /**\n     * Unique id for this input.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._uid;\n    /**\n     * Emits whenever the component is destroyed.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._destroy;\n    /**\n     * The last measured value for the trigger's client bounding rect.\n     * @type {?}\n     */\n    MatSelect.prototype._triggerRect;\n    /**\n     * The aria-describedby attribute on the select for improved a11y.\n     * @type {?}\n     */\n    MatSelect.prototype._ariaDescribedby;\n    /**\n     * The cached font-size of the trigger element.\n     * @type {?}\n     */\n    MatSelect.prototype._triggerFontSize;\n    /**\n     * Deals with the selection logic.\n     * @type {?}\n     */\n    MatSelect.prototype._selectionModel;\n    /**\n     * Manages keyboard events for options in the panel.\n     * @type {?}\n     */\n    MatSelect.prototype._keyManager;\n    /**\n     * `View -> model callback called when value changes`\n     * @type {?}\n     */\n    MatSelect.prototype._onChange;\n    /**\n     * `View -> model callback called when select has been touched`\n     * @type {?}\n     */\n    MatSelect.prototype._onTouched;\n    /**\n     * The IDs of child options to be passed to the aria-owns attribute.\n     * @type {?}\n     */\n    MatSelect.prototype._optionIds;\n    /**\n     * The value of the select panel's transform-origin property.\n     * @type {?}\n     */\n    MatSelect.prototype._transformOrigin;\n    /**\n     * Emits when the panel element is finished transforming in.\n     * @type {?}\n     */\n    MatSelect.prototype._panelDoneAnimatingStream;\n    /**\n     * Strategy that will be used to handle scrolling while the select panel is open.\n     * @type {?}\n     */\n    MatSelect.prototype._scrollStrategy;\n    /**\n     * The y-offset of the overlay panel in relation to the trigger's top start corner.\n     * This must be adjusted to align the selected option text over the trigger text.\n     * when the panel opens. Will change based on the y-position of the selected option.\n     * @type {?}\n     */\n    MatSelect.prototype._offsetY;\n    /**\n     * This position config ensures that the top \"start\" corner of the overlay\n     * is aligned with with the top \"start\" of the origin by default (overlapping\n     * the trigger completely). If the panel cannot fit below the trigger, it\n     * will fall back to a position above the trigger.\n     * @type {?}\n     */\n    MatSelect.prototype._positions;\n    /**\n     * Whether the component is disabling centering of the active option over the trigger.\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._disableOptionCentering;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._focused;\n    /**\n     * A name for this control that can be used by `mat-form-field`.\n     * @type {?}\n     */\n    MatSelect.prototype.controlType;\n    /**\n     * Trigger that opens the select.\n     * @type {?}\n     */\n    MatSelect.prototype.trigger;\n    /**\n     * Panel containing the select options.\n     * @type {?}\n     */\n    MatSelect.prototype.panel;\n    /**\n     * Overlay pane containing the options.\n     * @deprecated To be turned into a private API.\n     * \\@breaking-change 10.0.0\n     * \\@docs-private\n     * @type {?}\n     */\n    MatSelect.prototype.overlayDir;\n    /**\n     * All of the defined select options.\n     * @type {?}\n     */\n    MatSelect.prototype.options;\n    /**\n     * All of the defined groups of options.\n     * @type {?}\n     */\n    MatSelect.prototype.optionGroups;\n    /**\n     * Classes to be passed to the select panel. Supports the same syntax as `ngClass`.\n     * @type {?}\n     */\n    MatSelect.prototype.panelClass;\n    /**\n     * User-supplied override of the trigger element.\n     * @type {?}\n     */\n    MatSelect.prototype.customTrigger;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._value;\n    /**\n     * Aria label of the select. If not specified, the placeholder will be used as label.\n     * @type {?}\n     */\n    MatSelect.prototype.ariaLabel;\n    /**\n     * Input that can be used to specify the `aria-labelledby` attribute.\n     * @type {?}\n     */\n    MatSelect.prototype.ariaLabelledby;\n    /**\n     * Object used to control when error messages are shown.\n     * @type {?}\n     */\n    MatSelect.prototype.errorStateMatcher;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._typeaheadDebounceInterval;\n    /**\n     * Function used to sort the values in a select in multiple mode.\n     * Follows the same logic as `Array.prototype.sort`.\n     * @type {?}\n     */\n    MatSelect.prototype.sortComparator;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._id;\n    /**\n     * Combined stream of all of the child options' change events.\n     * @type {?}\n     */\n    MatSelect.prototype.optionSelectionChanges;\n    /**\n     * Event emitted when the select panel has been toggled.\n     * @type {?}\n     */\n    MatSelect.prototype.openedChange;\n    /**\n     * Event emitted when the select has been opened.\n     * @type {?}\n     */\n    MatSelect.prototype._openedStream;\n    /**\n     * Event emitted when the select has been closed.\n     * @type {?}\n     */\n    MatSelect.prototype._closedStream;\n    /**\n     * Event emitted when the selected value has been changed by the user.\n     * @type {?}\n     */\n    MatSelect.prototype.selectionChange;\n    /**\n     * Event that emits whenever the raw value of the select changes. This is here primarily\n     * to facilitate the two-way binding for the `value` input.\n     * \\@docs-private\n     * @type {?}\n     */\n    MatSelect.prototype.valueChange;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._viewportRuler;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._ngZone;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._dir;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._parentFormField;\n    /** @type {?} */\n    MatSelect.prototype.ngControl;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSelect.prototype._liveAnnouncer;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/select/select-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatSelectModule {\n}\nMatSelectModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatSelectModule });\nMatSelectModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatSelectModule_Factory(t) { return new (t || MatSelectModule)(); }, providers: [MAT_SELECT_SCROLL_STRATEGY_PROVIDER], imports: [[\n            CommonModule,\n            OverlayModule,\n            MatOptionModule,\n            MatCommonModule,\n        ], CdkScrollableModule,\n        MatFormFieldModule,\n        MatOptionModule,\n        MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatSelectModule, { declarations: function () { return [MatSelect, MatSelectTrigger]; }, imports: function () { return [CommonModule,\n        OverlayModule,\n        MatOptionModule,\n        MatCommonModule]; }, exports: function () { return [CdkScrollableModule,\n        MatFormFieldModule, MatSelect, MatSelectTrigger, MatOptionModule,\n        MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSelectModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    CommonModule,\n                    OverlayModule,\n                    MatOptionModule,\n                    MatCommonModule,\n                ],\n                exports: [\n                    CdkScrollableModule,\n                    MatFormFieldModule,\n                    MatSelect,\n                    MatSelectTrigger,\n                    MatOptionModule,\n                    MatCommonModule\n                ],\n                declarations: [MatSelect, MatSelectTrigger],\n                providers: [MAT_SELECT_SCROLL_STRATEGY_PROVIDER]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/select/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_SELECT_CONFIG, MAT_SELECT_SCROLL_STRATEGY, MAT_SELECT_SCROLL_STRATEGY_PROVIDER, MAT_SELECT_SCROLL_STRATEGY_PROVIDER_FACTORY, MatSelect, MatSelectChange, MatSelectModule, MatSelectTrigger, SELECT_ITEM_HEIGHT_EM, SELECT_MULTIPLE_PANEL_PADDING_X, SELECT_PANEL_INDENT_PADDING_X, SELECT_PANEL_MAX_HEIGHT, SELECT_PANEL_PADDING_X, SELECT_PANEL_VIEWPORT_PADDING, matSelectAnimations };\n\n//# sourceMappingURL=select.js.map","import { CommonModule } from '@angular/common';\nimport { Injectable, ɵɵdefineInjectable, Optional, SkipSelf, InjectionToken, EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, ChangeDetectorRef, Inject, Input, Output, NgModule } from '@angular/core';\nimport { MatButtonModule } from '@angular/material/button';\nimport { MatSelectModule } from '@angular/material/select';\nimport { MatTooltipModule } from '@angular/material/tooltip';\nimport { coerceNumberProperty, coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { Subject } from 'rxjs';\nimport { mixinDisabled, mixinInitialized } from '@angular/material/core';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/paginator/paginator-intl.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * To modify the labels and text displayed, create a new instance of MatPaginatorIntl and\n * include it in a custom provider\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/common';\nimport * as ɵngcc2 from '@angular/material/button';\nimport * as ɵngcc3 from '@angular/material/tooltip';\nimport * as ɵngcc4 from '@angular/material/form-field';\nimport * as ɵngcc5 from '@angular/material/select';\nimport * as ɵngcc6 from '@angular/material/core';\n\nfunction MatPaginator_div_2_mat_form_field_3_mat_option_2_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"mat-option\", 19);\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const pageSizeOption_r6 = ctx.$implicit;\n    ɵngcc0.ɵɵproperty(\"value\", pageSizeOption_r6);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate1(\" \", pageSizeOption_r6, \" \");\n} }\nfunction MatPaginator_div_2_mat_form_field_3_Template(rf, ctx) { if (rf & 1) {\n    const _r8 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"mat-form-field\", 16);\n    ɵngcc0.ɵɵelementStart(1, \"mat-select\", 17);\n    ɵngcc0.ɵɵlistener(\"selectionChange\", function MatPaginator_div_2_mat_form_field_3_Template_mat_select_selectionChange_1_listener($event) { ɵngcc0.ɵɵrestoreView(_r8); const ctx_r7 = ɵngcc0.ɵɵnextContext(2); return ctx_r7._changePageSize($event.value); });\n    ɵngcc0.ɵɵtemplate(2, MatPaginator_div_2_mat_form_field_3_mat_option_2_Template, 2, 2, \"mat-option\", 18);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r3 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵproperty(\"color\", ctx_r3.color);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"value\", ctx_r3.pageSize)(\"disabled\", ctx_r3.disabled)(\"aria-label\", ctx_r3._intl.itemsPerPageLabel);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngForOf\", ctx_r3._displayedPageSizeOptions);\n} }\nfunction MatPaginator_div_2_div_4_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 20);\n    ɵngcc0.ɵɵtext(1);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r4 = ɵngcc0.ɵɵnextContext(2);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵtextInterpolate(ctx_r4.pageSize);\n} }\nfunction MatPaginator_div_2_Template(rf, ctx) { if (rf & 1) {\n    ɵngcc0.ɵɵelementStart(0, \"div\", 12);\n    ɵngcc0.ɵɵelementStart(1, \"div\", 13);\n    ɵngcc0.ɵɵtext(2);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵtemplate(3, MatPaginator_div_2_mat_form_field_3_Template, 3, 5, \"mat-form-field\", 14);\n    ɵngcc0.ɵɵtemplate(4, MatPaginator_div_2_div_4_Template, 2, 1, \"div\", 15);\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r0 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵadvance(2);\n    ɵngcc0.ɵɵtextInterpolate1(\" \", ctx_r0._intl.itemsPerPageLabel, \" \");\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r0._displayedPageSizeOptions.length > 1);\n    ɵngcc0.ɵɵadvance(1);\n    ɵngcc0.ɵɵproperty(\"ngIf\", ctx_r0._displayedPageSizeOptions.length <= 1);\n} }\nfunction MatPaginator_button_6_Template(rf, ctx) { if (rf & 1) {\n    const _r10 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵelementStart(0, \"button\", 21);\n    ɵngcc0.ɵɵlistener(\"click\", function MatPaginator_button_6_Template_button_click_0_listener() { ɵngcc0.ɵɵrestoreView(_r10); const ctx_r9 = ɵngcc0.ɵɵnextContext(); return ctx_r9.firstPage(); });\n    ɵngcc0.ɵɵnamespaceSVG();\n    ɵngcc0.ɵɵelementStart(1, \"svg\", 7);\n    ɵngcc0.ɵɵelement(2, \"path\", 22);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r1 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"matTooltip\", ctx_r1._intl.firstPageLabel)(\"matTooltipDisabled\", ctx_r1._previousButtonsDisabled())(\"matTooltipPosition\", \"above\")(\"disabled\", ctx_r1._previousButtonsDisabled());\n    ɵngcc0.ɵɵattribute(\"aria-label\", ctx_r1._intl.firstPageLabel);\n} }\nfunction MatPaginator_button_13_Template(rf, ctx) { if (rf & 1) {\n    const _r12 = ɵngcc0.ɵɵgetCurrentView();\n    ɵngcc0.ɵɵnamespaceSVG();\n    ɵngcc0.ɵɵnamespaceHTML();\n    ɵngcc0.ɵɵelementStart(0, \"button\", 23);\n    ɵngcc0.ɵɵlistener(\"click\", function MatPaginator_button_13_Template_button_click_0_listener() { ɵngcc0.ɵɵrestoreView(_r12); const ctx_r11 = ɵngcc0.ɵɵnextContext(); return ctx_r11.lastPage(); });\n    ɵngcc0.ɵɵnamespaceSVG();\n    ɵngcc0.ɵɵelementStart(1, \"svg\", 7);\n    ɵngcc0.ɵɵelement(2, \"path\", 24);\n    ɵngcc0.ɵɵelementEnd();\n    ɵngcc0.ɵɵelementEnd();\n} if (rf & 2) {\n    const ctx_r2 = ɵngcc0.ɵɵnextContext();\n    ɵngcc0.ɵɵproperty(\"matTooltip\", ctx_r2._intl.lastPageLabel)(\"matTooltipDisabled\", ctx_r2._nextButtonsDisabled())(\"matTooltipPosition\", \"above\")(\"disabled\", ctx_r2._nextButtonsDisabled());\n    ɵngcc0.ɵɵattribute(\"aria-label\", ctx_r2._intl.lastPageLabel);\n} }\nclass MatPaginatorIntl {\n    constructor() {\n        /**\n         * Stream to emit from when labels are changed. Use this to notify components when the labels have\n         * changed after initialization.\n         */\n        this.changes = new Subject();\n        /**\n         * A label for the page size selector.\n         */\n        this.itemsPerPageLabel = 'Items per page:';\n        /**\n         * A label for the button that increments the current page.\n         */\n        this.nextPageLabel = 'Next page';\n        /**\n         * A label for the button that decrements the current page.\n         */\n        this.previousPageLabel = 'Previous page';\n        /**\n         * A label for the button that moves to the first page.\n         */\n        this.firstPageLabel = 'First page';\n        /**\n         * A label for the button that moves to the last page.\n         */\n        this.lastPageLabel = 'Last page';\n        /**\n         * A label for the range of items within the current page and the length of the whole list.\n         */\n        this.getRangeLabel = (/**\n         * @param {?} page\n         * @param {?} pageSize\n         * @param {?} length\n         * @return {?}\n         */\n        (page, pageSize, length) => {\n            if (length == 0 || pageSize == 0) {\n                return `0 of ${length}`;\n            }\n            length = Math.max(length, 0);\n            /** @type {?} */\n            const startIndex = page * pageSize;\n            // If the start index exceeds the list length, do not try and fix the end index to the end.\n            /** @type {?} */\n            const endIndex = startIndex < length ?\n                Math.min(startIndex + pageSize, length) :\n                startIndex + pageSize;\n            return `${startIndex + 1} – ${endIndex} of ${length}`;\n        });\n    }\n}\nMatPaginatorIntl.ɵfac = function MatPaginatorIntl_Factory(t) { return new (t || MatPaginatorIntl)(); };\n/** @nocollapse */ MatPaginatorIntl.ɵprov = ɵɵdefineInjectable({ factory: function MatPaginatorIntl_Factory() { return new MatPaginatorIntl(); }, token: MatPaginatorIntl, providedIn: \"root\" });\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatPaginatorIntl, [{\n        type: Injectable,\n        args: [{ providedIn: 'root' }]\n    }], function () { return []; }, null); })();\nif (false) {\n    /**\n     * Stream to emit from when labels are changed. Use this to notify components when the labels have\n     * changed after initialization.\n     * @type {?}\n     */\n    MatPaginatorIntl.prototype.changes;\n    /**\n     * A label for the page size selector.\n     * @type {?}\n     */\n    MatPaginatorIntl.prototype.itemsPerPageLabel;\n    /**\n     * A label for the button that increments the current page.\n     * @type {?}\n     */\n    MatPaginatorIntl.prototype.nextPageLabel;\n    /**\n     * A label for the button that decrements the current page.\n     * @type {?}\n     */\n    MatPaginatorIntl.prototype.previousPageLabel;\n    /**\n     * A label for the button that moves to the first page.\n     * @type {?}\n     */\n    MatPaginatorIntl.prototype.firstPageLabel;\n    /**\n     * A label for the button that moves to the last page.\n     * @type {?}\n     */\n    MatPaginatorIntl.prototype.lastPageLabel;\n    /**\n     * A label for the range of items within the current page and the length of the whole list.\n     * @type {?}\n     */\n    MatPaginatorIntl.prototype.getRangeLabel;\n}\n/**\n * \\@docs-private\n * @param {?} parentIntl\n * @return {?}\n */\nfunction MAT_PAGINATOR_INTL_PROVIDER_FACTORY(parentIntl) {\n    return parentIntl || new MatPaginatorIntl();\n}\n/**\n * \\@docs-private\n * @type {?}\n */\nconst MAT_PAGINATOR_INTL_PROVIDER = {\n    // If there is already an MatPaginatorIntl available, use that. Otherwise, provide a new one.\n    provide: MatPaginatorIntl,\n    deps: [[new Optional(), new SkipSelf(), MatPaginatorIntl]],\n    useFactory: MAT_PAGINATOR_INTL_PROVIDER_FACTORY\n};\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/paginator/paginator.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * The default page size if there is no page size and there are no provided page size options.\n * @type {?}\n */\nconst DEFAULT_PAGE_SIZE = 50;\n/**\n * Change event object that is emitted when the user selects a\n * different page size or navigates to another page.\n */\nclass PageEvent {\n}\nif (false) {\n    /**\n     * The current page index.\n     * @type {?}\n     */\n    PageEvent.prototype.pageIndex;\n    /**\n     * Index of the page that was selected previously.\n     * \\@breaking-change 8.0.0 To be made into a required property.\n     * @type {?}\n     */\n    PageEvent.prototype.previousPageIndex;\n    /**\n     * The current page size\n     * @type {?}\n     */\n    PageEvent.prototype.pageSize;\n    /**\n     * The current total number of items being paged\n     * @type {?}\n     */\n    PageEvent.prototype.length;\n}\n/**\n * Object that can be used to configure the default options for the paginator module.\n * @record\n */\nfunction MatPaginatorDefaultOptions() { }\nif (false) {\n    /**\n     * Number of items to display on a page. By default set to 50.\n     * @type {?|undefined}\n     */\n    MatPaginatorDefaultOptions.prototype.pageSize;\n    /**\n     * The set of provided page size options to display to the user.\n     * @type {?|undefined}\n     */\n    MatPaginatorDefaultOptions.prototype.pageSizeOptions;\n    /**\n     * Whether to hide the page size selection UI from the user.\n     * @type {?|undefined}\n     */\n    MatPaginatorDefaultOptions.prototype.hidePageSize;\n    /**\n     * Whether to show the first/last buttons UI to the user.\n     * @type {?|undefined}\n     */\n    MatPaginatorDefaultOptions.prototype.showFirstLastButtons;\n}\n/**\n * Injection token that can be used to provide the default options for the paginator module.\n * @type {?}\n */\nconst MAT_PAGINATOR_DEFAULT_OPTIONS = new InjectionToken('MAT_PAGINATOR_DEFAULT_OPTIONS');\n// Boilerplate for applying mixins to MatPaginator.\n/**\n * \\@docs-private\n */\nclass MatPaginatorBase {\n}\n/** @type {?} */\nconst _MatPaginatorBase = mixinDisabled(mixinInitialized(MatPaginatorBase));\n/**\n * Component to provide navigation between paged information. Displays the size of the current\n * page, user-selectable options to change that size, what items are being shown, and\n * navigational button to go to the previous or next page.\n */\nclass MatPaginator extends _MatPaginatorBase {\n    /**\n     * @param {?} _intl\n     * @param {?} _changeDetectorRef\n     * @param {?=} defaults\n     */\n    constructor(_intl, _changeDetectorRef, defaults) {\n        super();\n        this._intl = _intl;\n        this._changeDetectorRef = _changeDetectorRef;\n        this._pageIndex = 0;\n        this._length = 0;\n        this._pageSizeOptions = [];\n        this._hidePageSize = false;\n        this._showFirstLastButtons = false;\n        /**\n         * Event emitted when the paginator changes the page size or page index.\n         */\n        this.page = new EventEmitter();\n        this._intlChanges = _intl.changes.subscribe((/**\n         * @return {?}\n         */\n        () => this._changeDetectorRef.markForCheck()));\n        if (defaults) {\n            const { pageSize, pageSizeOptions, hidePageSize, showFirstLastButtons } = defaults;\n            if (pageSize != null) {\n                this._pageSize = pageSize;\n            }\n            if (pageSizeOptions != null) {\n                this._pageSizeOptions = pageSizeOptions;\n            }\n            if (hidePageSize != null) {\n                this._hidePageSize = hidePageSize;\n            }\n            if (showFirstLastButtons != null) {\n                this._showFirstLastButtons = showFirstLastButtons;\n            }\n        }\n    }\n    /**\n     * The zero-based page index of the displayed list of items. Defaulted to 0.\n     * @return {?}\n     */\n    get pageIndex() { return this._pageIndex; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set pageIndex(value) {\n        this._pageIndex = Math.max(coerceNumberProperty(value), 0);\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * The length of the total number of items that are being paginated. Defaulted to 0.\n     * @return {?}\n     */\n    get length() { return this._length; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set length(value) {\n        this._length = coerceNumberProperty(value);\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * Number of items to display on a page. By default set to 50.\n     * @return {?}\n     */\n    get pageSize() { return this._pageSize; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set pageSize(value) {\n        this._pageSize = Math.max(coerceNumberProperty(value), 0);\n        this._updateDisplayedPageSizeOptions();\n    }\n    /**\n     * The set of provided page size options to display to the user.\n     * @return {?}\n     */\n    get pageSizeOptions() { return this._pageSizeOptions; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set pageSizeOptions(value) {\n        this._pageSizeOptions = (value || []).map((/**\n         * @param {?} p\n         * @return {?}\n         */\n        p => coerceNumberProperty(p)));\n        this._updateDisplayedPageSizeOptions();\n    }\n    /**\n     * Whether to hide the page size selection UI from the user.\n     * @return {?}\n     */\n    get hidePageSize() { return this._hidePageSize; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set hidePageSize(value) {\n        this._hidePageSize = coerceBooleanProperty(value);\n    }\n    /**\n     * Whether to show the first/last buttons UI to the user.\n     * @return {?}\n     */\n    get showFirstLastButtons() { return this._showFirstLastButtons; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set showFirstLastButtons(value) {\n        this._showFirstLastButtons = coerceBooleanProperty(value);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this._initialized = true;\n        this._updateDisplayedPageSizeOptions();\n        this._markInitialized();\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._intlChanges.unsubscribe();\n    }\n    /**\n     * Advances to the next page if it exists.\n     * @return {?}\n     */\n    nextPage() {\n        if (!this.hasNextPage()) {\n            return;\n        }\n        /** @type {?} */\n        const previousPageIndex = this.pageIndex;\n        this.pageIndex++;\n        this._emitPageEvent(previousPageIndex);\n    }\n    /**\n     * Move back to the previous page if it exists.\n     * @return {?}\n     */\n    previousPage() {\n        if (!this.hasPreviousPage()) {\n            return;\n        }\n        /** @type {?} */\n        const previousPageIndex = this.pageIndex;\n        this.pageIndex--;\n        this._emitPageEvent(previousPageIndex);\n    }\n    /**\n     * Move to the first page if not already there.\n     * @return {?}\n     */\n    firstPage() {\n        // hasPreviousPage being false implies at the start\n        if (!this.hasPreviousPage()) {\n            return;\n        }\n        /** @type {?} */\n        const previousPageIndex = this.pageIndex;\n        this.pageIndex = 0;\n        this._emitPageEvent(previousPageIndex);\n    }\n    /**\n     * Move to the last page if not already there.\n     * @return {?}\n     */\n    lastPage() {\n        // hasNextPage being false implies at the end\n        if (!this.hasNextPage()) {\n            return;\n        }\n        /** @type {?} */\n        const previousPageIndex = this.pageIndex;\n        this.pageIndex = this.getNumberOfPages() - 1;\n        this._emitPageEvent(previousPageIndex);\n    }\n    /**\n     * Whether there is a previous page.\n     * @return {?}\n     */\n    hasPreviousPage() {\n        return this.pageIndex >= 1 && this.pageSize != 0;\n    }\n    /**\n     * Whether there is a next page.\n     * @return {?}\n     */\n    hasNextPage() {\n        /** @type {?} */\n        const maxPageIndex = this.getNumberOfPages() - 1;\n        return this.pageIndex < maxPageIndex && this.pageSize != 0;\n    }\n    /**\n     * Calculate the number of pages\n     * @return {?}\n     */\n    getNumberOfPages() {\n        if (!this.pageSize) {\n            return 0;\n        }\n        return Math.ceil(this.length / this.pageSize);\n    }\n    /**\n     * Changes the page size so that the first item displayed on the page will still be\n     * displayed using the new page size.\n     *\n     * For example, if the page size is 10 and on the second page (items indexed 10-19) then\n     * switching so that the page size is 5 will set the third page as the current page so\n     * that the 10th item will still be displayed.\n     * @param {?} pageSize\n     * @return {?}\n     */\n    _changePageSize(pageSize) {\n        // Current page needs to be updated to reflect the new page size. Navigate to the page\n        // containing the previous page's first item.\n        /** @type {?} */\n        const startIndex = this.pageIndex * this.pageSize;\n        /** @type {?} */\n        const previousPageIndex = this.pageIndex;\n        this.pageIndex = Math.floor(startIndex / pageSize) || 0;\n        this.pageSize = pageSize;\n        this._emitPageEvent(previousPageIndex);\n    }\n    /**\n     * Checks whether the buttons for going forwards should be disabled.\n     * @return {?}\n     */\n    _nextButtonsDisabled() {\n        return this.disabled || !this.hasNextPage();\n    }\n    /**\n     * Checks whether the buttons for going backwards should be disabled.\n     * @return {?}\n     */\n    _previousButtonsDisabled() {\n        return this.disabled || !this.hasPreviousPage();\n    }\n    /**\n     * Updates the list of page size options to display to the user. Includes making sure that\n     * the page size is an option and that the list is sorted.\n     * @private\n     * @return {?}\n     */\n    _updateDisplayedPageSizeOptions() {\n        if (!this._initialized) {\n            return;\n        }\n        // If no page size is provided, use the first page size option or the default page size.\n        if (!this.pageSize) {\n            this._pageSize = this.pageSizeOptions.length != 0 ?\n                this.pageSizeOptions[0] :\n                DEFAULT_PAGE_SIZE;\n        }\n        this._displayedPageSizeOptions = this.pageSizeOptions.slice();\n        if (this._displayedPageSizeOptions.indexOf(this.pageSize) === -1) {\n            this._displayedPageSizeOptions.push(this.pageSize);\n        }\n        // Sort the numbers using a number-specific sort function.\n        this._displayedPageSizeOptions.sort((/**\n         * @param {?} a\n         * @param {?} b\n         * @return {?}\n         */\n        (a, b) => a - b));\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * Emits an event notifying that a change of the paginator's properties has been triggered.\n     * @private\n     * @param {?} previousPageIndex\n     * @return {?}\n     */\n    _emitPageEvent(previousPageIndex) {\n        this.page.emit({\n            previousPageIndex,\n            pageIndex: this.pageIndex,\n            pageSize: this.pageSize,\n            length: this.length\n        });\n    }\n}\nMatPaginator.ɵfac = function MatPaginator_Factory(t) { return new (t || MatPaginator)(ɵngcc0.ɵɵdirectiveInject(MatPaginatorIntl), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(MAT_PAGINATOR_DEFAULT_OPTIONS, 8)); };\nMatPaginator.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatPaginator, selectors: [[\"mat-paginator\"]], hostAttrs: [1, \"mat-paginator\"], inputs: { disabled: \"disabled\", pageIndex: \"pageIndex\", length: \"length\", pageSize: \"pageSize\", pageSizeOptions: \"pageSizeOptions\", hidePageSize: \"hidePageSize\", showFirstLastButtons: \"showFirstLastButtons\", color: \"color\" }, outputs: { page: \"page\" }, exportAs: [\"matPaginator\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], decls: 14, vars: 14, consts: [[1, \"mat-paginator-outer-container\"], [1, \"mat-paginator-container\"], [\"class\", \"mat-paginator-page-size\", 4, \"ngIf\"], [1, \"mat-paginator-range-actions\"], [1, \"mat-paginator-range-label\"], [\"mat-icon-button\", \"\", \"type\", \"button\", \"class\", \"mat-paginator-navigation-first\", 3, \"matTooltip\", \"matTooltipDisabled\", \"matTooltipPosition\", \"disabled\", \"click\", 4, \"ngIf\"], [\"mat-icon-button\", \"\", \"type\", \"button\", 1, \"mat-paginator-navigation-previous\", 3, \"matTooltip\", \"matTooltipDisabled\", \"matTooltipPosition\", \"disabled\", \"click\"], [\"viewBox\", \"0 0 24 24\", \"focusable\", \"false\", 1, \"mat-paginator-icon\"], [\"d\", \"M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z\"], [\"mat-icon-button\", \"\", \"type\", \"button\", 1, \"mat-paginator-navigation-next\", 3, \"matTooltip\", \"matTooltipDisabled\", \"matTooltipPosition\", \"disabled\", \"click\"], [\"d\", \"M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z\"], [\"mat-icon-button\", \"\", \"type\", \"button\", \"class\", \"mat-paginator-navigation-last\", 3, \"matTooltip\", \"matTooltipDisabled\", \"matTooltipPosition\", \"disabled\", \"click\", 4, \"ngIf\"], [1, \"mat-paginator-page-size\"], [1, \"mat-paginator-page-size-label\"], [\"class\", \"mat-paginator-page-size-select\", 3, \"color\", 4, \"ngIf\"], [\"class\", \"mat-paginator-page-size-value\", 4, \"ngIf\"], [1, \"mat-paginator-page-size-select\", 3, \"color\"], [3, \"value\", \"disabled\", \"aria-label\", \"selectionChange\"], [3, \"value\", 4, \"ngFor\", \"ngForOf\"], [3, \"value\"], [1, \"mat-paginator-page-size-value\"], [\"mat-icon-button\", \"\", \"type\", \"button\", 1, \"mat-paginator-navigation-first\", 3, \"matTooltip\", \"matTooltipDisabled\", \"matTooltipPosition\", \"disabled\", \"click\"], [\"d\", \"M18.41 16.59L13.82 12l4.59-4.59L17 6l-6 6 6 6zM6 6h2v12H6z\"], [\"mat-icon-button\", \"\", \"type\", \"button\", 1, \"mat-paginator-navigation-last\", 3, \"matTooltip\", \"matTooltipDisabled\", \"matTooltipPosition\", \"disabled\", \"click\"], [\"d\", \"M5.59 7.41L10.18 12l-4.59 4.59L7 18l6-6-6-6zM16 6h2v12h-2z\"]], template: function MatPaginator_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵelementStart(0, \"div\", 0);\n        ɵngcc0.ɵɵelementStart(1, \"div\", 1);\n        ɵngcc0.ɵɵtemplate(2, MatPaginator_div_2_Template, 5, 3, \"div\", 2);\n        ɵngcc0.ɵɵelementStart(3, \"div\", 3);\n        ɵngcc0.ɵɵelementStart(4, \"div\", 4);\n        ɵngcc0.ɵɵtext(5);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵtemplate(6, MatPaginator_button_6_Template, 3, 5, \"button\", 5);\n        ɵngcc0.ɵɵelementStart(7, \"button\", 6);\n        ɵngcc0.ɵɵlistener(\"click\", function MatPaginator_Template_button_click_7_listener() { return ctx.previousPage(); });\n        ɵngcc0.ɵɵnamespaceSVG();\n        ɵngcc0.ɵɵelementStart(8, \"svg\", 7);\n        ɵngcc0.ɵɵelement(9, \"path\", 8);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵnamespaceHTML();\n        ɵngcc0.ɵɵelementStart(10, \"button\", 9);\n        ɵngcc0.ɵɵlistener(\"click\", function MatPaginator_Template_button_click_10_listener() { return ctx.nextPage(); });\n        ɵngcc0.ɵɵnamespaceSVG();\n        ɵngcc0.ɵɵelementStart(11, \"svg\", 7);\n        ɵngcc0.ɵɵelement(12, \"path\", 10);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵtemplate(13, MatPaginator_button_13_Template, 3, 5, \"button\", 11);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵproperty(\"ngIf\", !ctx.hidePageSize);\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵtextInterpolate1(\" \", ctx._intl.getRangeLabel(ctx.pageIndex, ctx.pageSize, ctx.length), \" \");\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.showFirstLastButtons);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"matTooltip\", ctx._intl.previousPageLabel)(\"matTooltipDisabled\", ctx._previousButtonsDisabled())(\"matTooltipPosition\", \"above\")(\"disabled\", ctx._previousButtonsDisabled());\n        ɵngcc0.ɵɵattribute(\"aria-label\", ctx._intl.previousPageLabel);\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵproperty(\"matTooltip\", ctx._intl.nextPageLabel)(\"matTooltipDisabled\", ctx._nextButtonsDisabled())(\"matTooltipPosition\", \"above\")(\"disabled\", ctx._nextButtonsDisabled());\n        ɵngcc0.ɵɵattribute(\"aria-label\", ctx._intl.nextPageLabel);\n        ɵngcc0.ɵɵadvance(3);\n        ɵngcc0.ɵɵproperty(\"ngIf\", ctx.showFirstLastButtons);\n    } }, directives: [ɵngcc1.NgIf, ɵngcc2.MatButton, ɵngcc3.MatTooltip, ɵngcc4.MatFormField, ɵngcc5.MatSelect, ɵngcc1.NgForOf, ɵngcc6.MatOption], styles: [\".mat-paginator{display:block}.mat-paginator-outer-container{display:flex}.mat-paginator-container{display:flex;align-items:center;justify-content:flex-end;min-height:56px;padding:0 8px;flex-wrap:wrap-reverse;width:100%}.mat-paginator-page-size{display:flex;align-items:baseline;margin-right:8px}[dir=rtl] .mat-paginator-page-size{margin-right:0;margin-left:8px}.mat-paginator-page-size-label{margin:0 4px}.mat-paginator-page-size-select{margin:6px 4px 0 4px;width:56px}.mat-paginator-page-size-select.mat-form-field-appearance-outline{width:64px}.mat-paginator-page-size-select.mat-form-field-appearance-fill{width:64px}.mat-paginator-range-label{margin:0 32px 0 24px}.mat-paginator-range-actions{display:flex;align-items:center}.mat-paginator-icon{width:28px;fill:currentColor}[dir=rtl] .mat-paginator-icon{transform:rotate(180deg)}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatPaginator.ctorParameters = () => [\n    { type: MatPaginatorIntl },\n    { type: ChangeDetectorRef },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_PAGINATOR_DEFAULT_OPTIONS,] }] }\n];\nMatPaginator.propDecorators = {\n    color: [{ type: Input }],\n    pageIndex: [{ type: Input }],\n    length: [{ type: Input }],\n    pageSize: [{ type: Input }],\n    pageSizeOptions: [{ type: Input }],\n    hidePageSize: [{ type: Input }],\n    showFirstLastButtons: [{ type: Input }],\n    page: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatPaginator, [{\n        type: Component,\n        args: [{\n                selector: 'mat-paginator',\n                exportAs: 'matPaginator',\n                template: \"<div class=\\\"mat-paginator-outer-container\\\">\\n  <div class=\\\"mat-paginator-container\\\">\\n    <div class=\\\"mat-paginator-page-size\\\" *ngIf=\\\"!hidePageSize\\\">\\n      <div class=\\\"mat-paginator-page-size-label\\\">\\n        {{_intl.itemsPerPageLabel}}\\n      </div>\\n\\n      <mat-form-field\\n        *ngIf=\\\"_displayedPageSizeOptions.length > 1\\\"\\n        [color]=\\\"color\\\"\\n        class=\\\"mat-paginator-page-size-select\\\">\\n        <mat-select\\n          [value]=\\\"pageSize\\\"\\n          [disabled]=\\\"disabled\\\"\\n          [aria-label]=\\\"_intl.itemsPerPageLabel\\\"\\n          (selectionChange)=\\\"_changePageSize($event.value)\\\">\\n          <mat-option *ngFor=\\\"let pageSizeOption of _displayedPageSizeOptions\\\" [value]=\\\"pageSizeOption\\\">\\n            {{pageSizeOption}}\\n          </mat-option>\\n        </mat-select>\\n      </mat-form-field>\\n\\n      <div\\n        class=\\\"mat-paginator-page-size-value\\\"\\n        *ngIf=\\\"_displayedPageSizeOptions.length <= 1\\\">{{pageSize}}</div>\\n    </div>\\n\\n    <div class=\\\"mat-paginator-range-actions\\\">\\n      <div class=\\\"mat-paginator-range-label\\\">\\n        {{_intl.getRangeLabel(pageIndex, pageSize, length)}}\\n      </div>\\n\\n      <button mat-icon-button type=\\\"button\\\"\\n              class=\\\"mat-paginator-navigation-first\\\"\\n              (click)=\\\"firstPage()\\\"\\n              [attr.aria-label]=\\\"_intl.firstPageLabel\\\"\\n              [matTooltip]=\\\"_intl.firstPageLabel\\\"\\n              [matTooltipDisabled]=\\\"_previousButtonsDisabled()\\\"\\n              [matTooltipPosition]=\\\"'above'\\\"\\n              [disabled]=\\\"_previousButtonsDisabled()\\\"\\n              *ngIf=\\\"showFirstLastButtons\\\">\\n        <svg class=\\\"mat-paginator-icon\\\" viewBox=\\\"0 0 24 24\\\" focusable=\\\"false\\\">\\n          <path d=\\\"M18.41 16.59L13.82 12l4.59-4.59L17 6l-6 6 6 6zM6 6h2v12H6z\\\"/>\\n        </svg>\\n      </button>\\n      <button mat-icon-button type=\\\"button\\\"\\n              class=\\\"mat-paginator-navigation-previous\\\"\\n              (click)=\\\"previousPage()\\\"\\n              [attr.aria-label]=\\\"_intl.previousPageLabel\\\"\\n              [matTooltip]=\\\"_intl.previousPageLabel\\\"\\n              [matTooltipDisabled]=\\\"_previousButtonsDisabled()\\\"\\n              [matTooltipPosition]=\\\"'above'\\\"\\n              [disabled]=\\\"_previousButtonsDisabled()\\\">\\n        <svg class=\\\"mat-paginator-icon\\\" viewBox=\\\"0 0 24 24\\\" focusable=\\\"false\\\">\\n          <path d=\\\"M15.41 7.41L14 6l-6 6 6 6 1.41-1.41L10.83 12z\\\"/>\\n        </svg>\\n      </button>\\n      <button mat-icon-button type=\\\"button\\\"\\n              class=\\\"mat-paginator-navigation-next\\\"\\n              (click)=\\\"nextPage()\\\"\\n              [attr.aria-label]=\\\"_intl.nextPageLabel\\\"\\n              [matTooltip]=\\\"_intl.nextPageLabel\\\"\\n              [matTooltipDisabled]=\\\"_nextButtonsDisabled()\\\"\\n              [matTooltipPosition]=\\\"'above'\\\"\\n              [disabled]=\\\"_nextButtonsDisabled()\\\">\\n        <svg class=\\\"mat-paginator-icon\\\" viewBox=\\\"0 0 24 24\\\" focusable=\\\"false\\\">\\n          <path d=\\\"M10 6L8.59 7.41 13.17 12l-4.58 4.59L10 18l6-6z\\\"/>\\n        </svg>\\n      </button>\\n      <button mat-icon-button type=\\\"button\\\"\\n              class=\\\"mat-paginator-navigation-last\\\"\\n              (click)=\\\"lastPage()\\\"\\n              [attr.aria-label]=\\\"_intl.lastPageLabel\\\"\\n              [matTooltip]=\\\"_intl.lastPageLabel\\\"\\n              [matTooltipDisabled]=\\\"_nextButtonsDisabled()\\\"\\n              [matTooltipPosition]=\\\"'above'\\\"\\n              [disabled]=\\\"_nextButtonsDisabled()\\\"\\n              *ngIf=\\\"showFirstLastButtons\\\">\\n        <svg class=\\\"mat-paginator-icon\\\" viewBox=\\\"0 0 24 24\\\" focusable=\\\"false\\\">\\n          <path d=\\\"M5.59 7.41L10.18 12l-4.59 4.59L7 18l6-6-6-6zM16 6h2v12h-2z\\\"/>\\n        </svg>\\n      </button>\\n    </div>\\n  </div>\\n</div>\\n\",\n                inputs: ['disabled'],\n                host: {\n                    'class': 'mat-paginator'\n                },\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                encapsulation: ViewEncapsulation.None,\n                styles: [\".mat-paginator{display:block}.mat-paginator-outer-container{display:flex}.mat-paginator-container{display:flex;align-items:center;justify-content:flex-end;min-height:56px;padding:0 8px;flex-wrap:wrap-reverse;width:100%}.mat-paginator-page-size{display:flex;align-items:baseline;margin-right:8px}[dir=rtl] .mat-paginator-page-size{margin-right:0;margin-left:8px}.mat-paginator-page-size-label{margin:0 4px}.mat-paginator-page-size-select{margin:6px 4px 0 4px;width:56px}.mat-paginator-page-size-select.mat-form-field-appearance-outline{width:64px}.mat-paginator-page-size-select.mat-form-field-appearance-fill{width:64px}.mat-paginator-range-label{margin:0 32px 0 24px}.mat-paginator-range-actions{display:flex;align-items:center}.mat-paginator-icon{width:28px;fill:currentColor}[dir=rtl] .mat-paginator-icon{transform:rotate(180deg)}\\n\"]\n            }]\n    }], function () { return [{ type: MatPaginatorIntl }, { type: ɵngcc0.ChangeDetectorRef }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_PAGINATOR_DEFAULT_OPTIONS]\n            }] }]; }, { page: [{\n            type: Output\n        }], pageIndex: [{\n            type: Input\n        }], length: [{\n            type: Input\n        }], pageSize: [{\n            type: Input\n        }], pageSizeOptions: [{\n            type: Input\n        }], hidePageSize: [{\n            type: Input\n        }], showFirstLastButtons: [{\n            type: Input\n        }], color: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatPaginator.ngAcceptInputType_pageIndex;\n    /** @type {?} */\n    MatPaginator.ngAcceptInputType_length;\n    /** @type {?} */\n    MatPaginator.ngAcceptInputType_pageSize;\n    /** @type {?} */\n    MatPaginator.ngAcceptInputType_hidePageSize;\n    /** @type {?} */\n    MatPaginator.ngAcceptInputType_showFirstLastButtons;\n    /** @type {?} */\n    MatPaginator.ngAcceptInputType_disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._initialized;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._intlChanges;\n    /**\n     * Theme color to be used for the underlying form controls.\n     * @type {?}\n     */\n    MatPaginator.prototype.color;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._pageIndex;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._length;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._pageSize;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._pageSizeOptions;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._hidePageSize;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._showFirstLastButtons;\n    /**\n     * Event emitted when the paginator changes the page size or page index.\n     * @type {?}\n     */\n    MatPaginator.prototype.page;\n    /**\n     * Displayed set of page size options. Will be sorted and include current page size.\n     * @type {?}\n     */\n    MatPaginator.prototype._displayedPageSizeOptions;\n    /** @type {?} */\n    MatPaginator.prototype._intl;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatPaginator.prototype._changeDetectorRef;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/paginator/paginator-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatPaginatorModule {\n}\nMatPaginatorModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatPaginatorModule });\nMatPaginatorModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatPaginatorModule_Factory(t) { return new (t || MatPaginatorModule)(); }, providers: [MAT_PAGINATOR_INTL_PROVIDER], imports: [[\n            CommonModule,\n            MatButtonModule,\n            MatSelectModule,\n            MatTooltipModule,\n        ]] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatPaginatorModule, { declarations: function () { return [MatPaginator]; }, imports: function () { return [CommonModule,\n        MatButtonModule,\n        MatSelectModule,\n        MatTooltipModule]; }, exports: function () { return [MatPaginator]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatPaginatorModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    CommonModule,\n                    MatButtonModule,\n                    MatSelectModule,\n                    MatTooltipModule,\n                ],\n                exports: [MatPaginator],\n                declarations: [MatPaginator],\n                providers: [MAT_PAGINATOR_INTL_PROVIDER]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/paginator/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_PAGINATOR_DEFAULT_OPTIONS, MAT_PAGINATOR_INTL_PROVIDER, MAT_PAGINATOR_INTL_PROVIDER_FACTORY, MatPaginator, MatPaginatorIntl, MatPaginatorModule, PageEvent };\n\n//# sourceMappingURL=paginator.js.map","<div class=\"header\">\r\n    <div class=\"name\" trans>Font Picker</div>\r\n    <button class=\"close-button no-style\" (click)=\"overlayPanelRef.close()\">\r\n        <mat-icon svgIcon=\"close\"></mat-icon>\r\n    </button>\r\n</div>\r\n\r\n<form class=\"many-inputs\" [formGroup]=\"fonts.paginator.filters\">\r\n    <div class=\"input-container search\">\r\n        <input type=\"search\" placeholder=\"Search...\" formControlName=\"search\" trans-placeholder>\r\n    </div>\r\n\r\n    <div class=\"input-container category\">\r\n        <select formControlName=\"category\">\r\n            <option [value]=\"item.key\" *ngFor=\"let item of fontCategories | keyvalue\" trans>{{item.value}}</option>\r\n        </select>\r\n    </div>\r\n</form>\r\n\r\n<div class=\"fonts\">\r\n    <button class=\"no-style font\" *ngFor=\"let font of fonts.paginator.current$ | async\" [style.fontFamily]=\"font.family\" (click)=\"applyFont(font)\">{{font.family}}</button>\r\n</div>\r\n\r\n<mat-paginator [length]=\"fonts.paginator.getTotal()\"\r\n               [pageSize]=\"10\"\r\n               [hidePageSize]=\"true\"\r\n               (page)=\"changePage($event)\">\r\n</mat-paginator>","import {ChangeDetectionStrategy, Component, OnDestroy, OnInit, ViewChild, ViewEncapsulation} from '@angular/core';\nimport {OverlayPanelRef} from 'common/core/ui/overlay-panel/overlay-panel-ref';\nimport {GoogleFontsPanelService} from './google-fonts-panel.service';\nimport {FontCategory} from './font-category';\nimport {FontItem} from './font-item';\nimport { MatPaginator, PageEvent } from '@angular/material/paginator';\n\n@Component({\n    selector: 'google-fonts-panel',\n    templateUrl: './google-fonts-panel.component.html',\n    styleUrls: ['./google-fonts-panel.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None,\n})\nexport class GoogleFontsPanelComponent implements OnInit, OnDestroy {\n    @ViewChild(MatPaginator, {static: true}) paginator: MatPaginator;\n    public fontCategories = FontCategory;\n\n    constructor(\n        public overlayPanelRef: OverlayPanelRef,\n        public fonts: GoogleFontsPanelService,\n    ) {}\n\n    ngOnInit() {\n        this.fonts.init().then(() => {\n            this.fonts.paginator.filters.valueChanges.subscribe(() => {\n                this.paginator.firstPage();\n            });\n        });\n    }\n\n    ngOnDestroy() {\n        this.fonts.paginator.reset();\n    }\n\n    public applyFont(font: FontItem) {\n        this.overlayPanelRef.emitValue(font);\n        this.overlayPanelRef.close();\n    }\n\n    public changePage(e: PageEvent) {\n        this.fonts.paginator.setPage(e.pageIndex);\n    }\n}\n","import {ChangeDetectionStrategy, Component, OnInit, ViewEncapsulation} from '@angular/core';\nimport {ActiveObjectService} from '../../../../image-editor/canvas/active-object/active-object.service';\nimport {Store} from '@ngxs/store';\nimport {AddText} from '../../../state/text/text.actions';\nimport {GoogleFontsPanelService} from '../../widgets/google-fonts-panel/google-fonts-panel.service';\nimport {Settings} from '@common/core/config/settings.service';\nimport {FontItem} from '../../widgets/google-fonts-panel/font-item';\n\n@Component({\n    selector: 'text-drawer',\n    templateUrl: './text-drawer.component.html',\n    styleUrls: ['./text-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class TextDrawerComponent implements OnInit {\n    constructor(\n        private store: Store,\n        public activeObject: ActiveObjectService,\n        private googleFonts: GoogleFontsPanelService,\n        private settings: Settings,\n    ) {}\n\n    ngOnInit(): void {\n        let defaultFont = this.settings.get('pixie.objectDefaults.text.fontFamily') as string|FontItem;\n        const customFonts = (this.settings.get('pixie.tools.text.items', []) as FontItem[])\n                .filter(f => f.type === 'custom')\n                .map(f => f.family.toLowerCase());\n        if (defaultFont) {\n            if (typeof defaultFont === 'string') {\n                const isCustom = customFonts.includes(defaultFont.toLowerCase());\n                defaultFont = {family: defaultFont, type: isCustom ? 'custom' : 'google'};\n            }\n            this.googleFonts.loadIntoDom([defaultFont]);\n        }\n    }\n\n    public addText() {\n        this.store.dispatch(new AddText());\n    }\n}\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {GoogleFontsPanelComponent} from '../google-fonts-panel/google-fonts-panel.component';\nimport {NG_VALUE_ACCESSOR} from '@angular/forms';\nimport {BehaviorSubject} from 'rxjs';\nimport {OverlayPanel} from '@common/core/ui/overlay-panel/overlay-panel.service';\nimport {FontItem} from '../google-fonts-panel/font-item';\nimport {map} from 'rxjs/operators';\n\n@Component({\n    selector: 'text-font-selector',\n    templateUrl: './text-font-selector.component.html',\n    styleUrls: ['./text-font-selector.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    providers: [{\n        provide: NG_VALUE_ACCESSOR,\n        useExisting: TextFontSelectorComponent,\n        multi: true,\n    }]\n})\nexport class TextFontSelectorComponent {\n    public selectedFont$ = new BehaviorSubject<FontItem|string>(null);\n    public propagateChange: Function;\n\n    get fontFamily$() {\n        return this.selectedFont$.pipe(map(f => (!f || typeof f === 'string') ? f : f.family));\n    }\n\n    constructor(private overlayPanel: OverlayPanel) {}\n\n    public openGoogleFontsPanel() {\n        this.overlayPanel.open(\n            GoogleFontsPanelComponent,\n            {\n                position: 'center',\n                origin: 'global',\n            })\n            .valueChanged().subscribe((fontFamily: FontItem) => {\n                this.selectedFont$.next(fontFamily);\n                this.propagateChange(fontFamily);\n            });\n    }\n\n    public writeValue(value: string|FontItem|null) {\n        this.selectedFont$.next(value);\n    }\n\n    public registerOnChange(fn: Function) {\n        this.propagateChange = fn;\n    }\n\n    public registerOnTouched() {}\n}\n","<button\n        class=\"select-font-button no-style\"\n        (click)=\"openGoogleFontsPanel()\"\n        [style.fontFamily]=\"fontFamily$ | async\"\n>\n  <span class=\"text\">{{fontFamily$ | async}}</span>\n  <mat-icon svgIcon=\"keyboard-arrow-down\"></mat-icon>\n</button>\n","<div class=\"tool-panel-content\" [formGroup]=\"activeObject.form\">\n    <color-widget formControlName=\"fill\" trans>Color Picker</color-widget>\n\n    <div class=\"add-text-button-wrapper\">\n        <div class=\"round-action-button add-text-button\" (click)=\"addText()\">\n            <mat-icon svgIcon=\"add\"></mat-icon>\n        </div>\n        <div class=\"bottom-label\" trans>Add Text</div>\n    </div>\n\n    <div class=\"font-selector-wrapper\">\n        <text-font-selector formControlName=\"fontFamily\"></text-font-selector>\n        <div class=\"bottom-label\" trans>Font</div>\n    </div>\n</div>\n","<div class=\"tool-panel-content\">\n    <button class=\"button-with-image\" *ngFor=\"let shape of shapes\" (click)=\"addShape(shape.name);\">\n        <svg *ngIf=\"shape.type === 'Path'\" xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 -100 512 700\">\n            <path [attr.d]=\"shape.options.path\" [attr.stroke-width]=\"shape.options.strokeWidth || 10\"></path>\n        </svg>\n        <mat-icon [svgIcon]=\"shape.name+'-custom'\" *ngIf=\"shape.type !== 'Path'\"></mat-icon>\n        <span class=\"name bottom-label\" trans>{{shape.name}}</span>\n    </button>\n</div>\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {Settings} from 'common/core/config/settings.service';\nimport {BasicShape} from '../../../../image-editor/tools/shapes/default-shapes';\nimport {Select, Store} from '@ngxs/store';\nimport {ShapesState} from '../../../state/shapes/shapes.state';\nimport {Observable} from 'rxjs';\nimport {AddShape} from '../../../state/shapes/shapes.actions';\n\n@Component({\n    selector: 'shapes-drawer',\n    templateUrl: './shapes-drawer.component.html',\n    styleUrls: ['./shapes-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class ShapesDrawerComponent {\n    @Select(ShapesState.dirty) dirty$: Observable<boolean>;\n    public shapes: BasicShape[];\n\n    constructor(\n        private config: Settings,\n        private store: Store,\n    ) {\n        this.shapes = this.config.get('pixie.tools.shapes.items');\n    }\n\n    public addShape(shape: string) {\n        this.store.dispatch(new AddShape(shape));\n    }\n}\n","<div class=\"tool-panel-content\" *ngIf=\"activeCategory$ | async as activeCategory else categoryList\">\n    <button\n            class=\"sticker button-with-image\"\n            [class.no-label]=\"!activeCategory.list\"\n            [class.dark-bg]=\"activeCategory.darkBg\"\n            *ngFor=\"let name of getStickersIterable(activeCategory);\"\n            (click)=\"addSticker(activeCategory.name, name); button.blur()\"\n            #button\n    >\n        <img [src]=\"shapesTool.getStickerUrl(activeCategory, name)\" alt=\"Sticker preview image\">\n        <span class=\"bottom-label\" *ngIf=\"activeCategory.list\" trans>{{name}}</span>\n    </button>\n</div>\n\n<ng-template #categoryList>\n    <div class=\"tool-panel-content\">\n        <div class=\"category button-with-image\" *ngFor=\"let category of categories\" (click)=\"openStickersCategory(category)\">\n            <img [src]=\"shapesTool.getStickerCategoryUrl(category)\" alt=\"Sticker category preview image\">\n            <div class=\"bottom-label\" trans>{{category.name}}</div>\n        </div>\n    </div>\n</ng-template>\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {Settings} from 'common/core/config/settings.service';\nimport {StickerCategory} from '../../../../image-editor/tools/shapes/default-stickers';\nimport {ShapesToolService} from '../../../../image-editor/tools/shapes/shapes-tool.service';\nimport {Select, Store} from '@ngxs/store';\nimport {MarkAsDirty, OpenStickerCategory} from '../../../state/stickers/stickers.actions';\nimport {StickersState} from '../../../state/stickers/stickers.state';\nimport {Observable} from 'rxjs';\n\n@Component({\n    selector: 'stickers-drawer',\n    templateUrl: './stickers-drawer.component.html',\n    styleUrls: ['./stickers-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class StickersDrawerComponent {\n    @Select(StickersState.activeCategory) activeCategory$: Observable<StickerCategory>;\n    public categories: StickerCategory[];\n\n    constructor(\n        public shapesTool: ShapesToolService,\n        private config: Settings,\n        private store: Store,\n    ) {\n        this.categories = this.config.get('pixie.tools.stickers.items');\n    }\n\n    public addSticker(categoryName: string, stickerName: number|string) {\n        this.shapesTool.addSticker(categoryName, stickerName).then(() => {\n            this.store.dispatch(new MarkAsDirty());\n        });\n    }\n\n    public openStickersCategory(category: StickerCategory) {\n        this.store.dispatch(new OpenStickerCategory(category));\n    }\n\n    /**\n     * Get iterable for specified categories items.\n     */\n    public getStickersIterable(category: StickerCategory): (string|number)[] {\n        if (category.list) return category.list;\n        return Array.from(Array(category.items).keys());\n    }\n}\n\n","import {ChangeDetectionStrategy, Component, OnDestroy, OnInit, ViewEncapsulation} from '@angular/core';\nimport {ActiveObjectService} from '../../../../image-editor/canvas/active-object/active-object.service';\nimport {RoundToolService} from '../../../../image-editor/tools/round/round-tool.service';\n\n@Component({\n    selector: 'round-drawer',\n    templateUrl: './round-drawer.component.html',\n    styleUrls: ['./round-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class RoundDrawerComponent implements OnDestroy, OnInit {\n    public radius = 50;\n\n    constructor(\n        public activeObject: ActiveObjectService,\n        public roundTool: RoundToolService,\n    ) {}\n\n    ngOnInit() {\n        this.roundTool.showPreview();\n    }\n\n    ngOnDestroy() {\n        this.roundTool.hidePreview();\n    }\n}\n","<div class=\"tool-panel-content\">\n    <div class=\"slider-container\">\n        <div class=\"slider-label\" trans>Radius</div>\n        <mat-slider min=\"1\" max=\"300\" (input)=\"roundTool.updatePreview($event.value)\" [(ngModel)]=\"radius\"></mat-slider>\n    </div>\n</div>\n","<section class=\"tool-panel-content main-content\" [class.hidden]=\"controlsOpen$ | async\">\n    <div class=\"button-with-image\" *ngFor=\"let frame of frameTool.getAll()\" (click)=\"selectFrame(frame)\">\n        <div class=\"image-container\">\n            <img [src]=\"getFrameThumbUrl(frame)\">\n            <div class=\"button-overlay\" *ngIf=\"frameIsActive(frame)\">\n                <button mat-icon-button (click)=\"removeFrame(); $event.stopPropagation();\">\n                    <mat-icon svgIcon=\"cancel\"></mat-icon>\n                </button>\n                <button mat-icon-button (click)=\"showFrameConfig(frame); $event.stopPropagation();\">\n                    <mat-icon svgIcon=\"settings\"></mat-icon>\n                </button>\n            </div>\n        </div>\n        <span class=\"bottom-label\" trans>{{frame.display_name || frame.name}}</span>\n    </div>\n</section>\n\n<section class=\"tool-panel-content frame-controls\" [class.hidden]=\"!(controlsOpen$ | async)\" [formGroup]=\"frameControlsForm\">\n    <color-widget formControlName=\"color\" *ngIf=\"activeFrame.isBasic()\"></color-widget>\n\n    <div class=\"slider-container\">\n        <div class=\"slider-label\" trans>Size</div>\n        <mat-slider [min]=\"activeFrame.getMinSize()\" [max]=\"activeFrame.getMaxSize()\" formControlName=\"size\" (input)=\"scaleFrame($event.value)\"></mat-slider>\n    </div>\n</section>\n","import {ChangeDetectionStrategy, Component, OnInit, ViewEncapsulation} from '@angular/core';\nimport {FormControl, FormGroup} from '@angular/forms';\nimport {FrameToolService} from '../../../../image-editor/tools/frame/frame-tool.service';\nimport {ActiveFrameService} from '../../../../image-editor/tools/frame/active-frame.service';\nimport {Frame} from '../../../../image-editor/tools/frame/frame';\nimport {Select, Store} from '@ngxs/store';\nimport {MarkAsDirty, OpenFrameControls} from '../../../state/frame/frame.actions';\nimport {FrameState} from '../../../state/frame/frame.state';\nimport {Observable} from 'rxjs';\nimport {debounceTime} from 'rxjs/operators';\n\n@Component({\n    selector: 'frame-drawer',\n    templateUrl: './frame-drawer.component.html',\n    styleUrls: ['./frame-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class FrameDrawerComponent implements OnInit {\n    @Select(FrameState.controlsOpen) controlsOpen$: Observable<boolean>;\n\n    public frameControlsForm = new FormGroup({\n        size: new FormControl(),\n        color: new FormControl(),\n    });\n\n    constructor(\n        public frameTool: FrameToolService,\n        public activeFrame: ActiveFrameService,\n        private store: Store,\n    ) {}\n\n    ngOnInit() {\n        this.frameControlsForm.get('color').valueChanges.subscribe(value => {\n            this.frameTool.changeColor(value);\n        });\n\n        this.frameControlsForm.valueChanges\n            .pipe(debounceTime(150))\n            .subscribe(() => {\n                this.markAsDirty();\n            });\n    }\n\n    public getFrameThumbUrl(frame: Frame) {\n        return this.frameTool.patterns.getBaseUrl(frame) + '/thumbnail.png';\n    }\n\n    public selectFrame(frame: Frame) {\n        this.markAsDirty();\n        this.frameTool.add(frame.name);\n    }\n\n    public scaleFrame(value: number | null) {\n        this.frameTool.resize(value);\n    }\n\n    public frameIsActive(frame: Frame) {\n        return this.activeFrame.is(frame);\n    }\n\n    public removeFrame() {\n        this.activeFrame.remove();\n    }\n\n    public showFrameConfig(frame: Frame) {\n        this.frameControlsForm.patchValue({size: frame.size.default}, {emitEvent: false});\n        this.store.dispatch(new OpenFrameControls());\n    }\n\n    public markAsDirty() {\n        this.store.dispatch(new MarkAsDirty());\n    }\n}\n","import {ChangeDetectionStrategy, Component, OnInit, ViewEncapsulation} from '@angular/core';\nimport {FormControl} from '@angular/forms';\nimport {CanvasService} from '../../../../image-editor/canvas/canvas.service';\nimport {Store} from '@ngxs/store';\nimport {MarkAsDirty} from '../../../state/background/background.actions';\n\n@Component({\n    selector: 'canvas-background-drawer',\n    templateUrl: './canvas-background-drawer.component.html',\n    styleUrls: ['./canvas-background-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class CanvasBackgroundDrawerComponent implements OnInit {\n    public colorControl = new FormControl();\n\n    constructor(\n        private store: Store,\n        private canvas: CanvasService,\n    ) {}\n\n    ngOnInit() {\n        this.colorControl.valueChanges.subscribe(color => {\n            if ( ! color) return;\n            this.canvas.fabric().setBackgroundColor(color);\n            this.canvas.render();\n            this.store.dispatch(new MarkAsDirty());\n        });\n    }\n}\n","import { FocusMonitor } from '@angular/cdk/a11y';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { SelectionModel } from '@angular/cdk/collections';\nimport { InjectionToken, forwardRef, EventEmitter, Directive, ChangeDetectorRef, Optional, Inject, ContentChildren, Input, Output, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, Attribute, ViewChild, NgModule } from '@angular/core';\nimport { NG_VALUE_ACCESSOR } from '@angular/forms';\nimport { mixinDisableRipple, MatCommonModule, MatRippleModule } from '@angular/material/core';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/button-toggle/button-toggle.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Represents the default options for the button toggle that can be configured\n * using the `MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS` injection token.\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/material/core';\n\nconst _c0 = [\"button\"];\nconst _c1 = [\"*\"];\nfunction MatButtonToggleDefaultOptions() { }\nif (false) {\n    /** @type {?|undefined} */\n    MatButtonToggleDefaultOptions.prototype.appearance;\n}\n/**\n * Injection token that can be used to configure the\n * default options for all button toggles within an app.\n * @type {?}\n */\nconst MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS = new InjectionToken('MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS');\n/**\n * Provider Expression that allows mat-button-toggle-group to register as a ControlValueAccessor.\n * This allows it to support [(ngModel)].\n * \\@docs-private\n * @type {?}\n */\nconst MAT_BUTTON_TOGGLE_GROUP_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MatButtonToggleGroup)),\n    multi: true\n};\n/**\n * @deprecated Use `MatButtonToggleGroup` instead.\n * \\@breaking-change 8.0.0\n */\nclass MatButtonToggleGroupMultiple {\n}\n/** @type {?} */\nlet _uniqueIdCounter = 0;\n/**\n * Change event object emitted by MatButtonToggle.\n */\nclass MatButtonToggleChange {\n    /**\n     * @param {?} source\n     * @param {?} value\n     */\n    constructor(source, value) {\n        this.source = source;\n        this.value = value;\n    }\n}\nif (false) {\n    /**\n     * The MatButtonToggle that emits the event.\n     * @type {?}\n     */\n    MatButtonToggleChange.prototype.source;\n    /**\n     * The value assigned to the MatButtonToggle.\n     * @type {?}\n     */\n    MatButtonToggleChange.prototype.value;\n}\n/**\n * Exclusive selection button toggle group that behaves like a radio-button group.\n */\nclass MatButtonToggleGroup {\n    /**\n     * @param {?} _changeDetector\n     * @param {?=} defaultOptions\n     */\n    constructor(_changeDetector, defaultOptions) {\n        this._changeDetector = _changeDetector;\n        this._vertical = false;\n        this._multiple = false;\n        this._disabled = false;\n        /**\n         * The method to be called in order to update ngModel.\n         * Now `ngModel` binding is not supported in multiple selection mode.\n         */\n        this._controlValueAccessorChangeFn = (/**\n         * @return {?}\n         */\n        () => { });\n        /**\n         * onTouch function registered via registerOnTouch (ControlValueAccessor).\n         */\n        this._onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        this._name = `mat-button-toggle-group-${_uniqueIdCounter++}`;\n        /**\n         * Event that emits whenever the value of the group changes.\n         * Used to facilitate two-way data binding.\n         * \\@docs-private\n         */\n        this.valueChange = new EventEmitter();\n        /**\n         * Event emitted when the group's value changes.\n         */\n        this.change = new EventEmitter();\n        this.appearance =\n            defaultOptions && defaultOptions.appearance ? defaultOptions.appearance : 'standard';\n    }\n    /**\n     * `name` attribute for the underlying `input` element.\n     * @return {?}\n     */\n    get name() { return this._name; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set name(value) {\n        this._name = value;\n        if (this._buttonToggles) {\n            this._buttonToggles.forEach((/**\n             * @param {?} toggle\n             * @return {?}\n             */\n            toggle => {\n                toggle.name = this._name;\n                toggle._markForCheck();\n            }));\n        }\n    }\n    /**\n     * Whether the toggle group is vertical.\n     * @return {?}\n     */\n    get vertical() { return this._vertical; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set vertical(value) {\n        this._vertical = coerceBooleanProperty(value);\n    }\n    /**\n     * Value of the toggle group.\n     * @return {?}\n     */\n    get value() {\n        /** @type {?} */\n        const selected = this._selectionModel ? this._selectionModel.selected : [];\n        if (this.multiple) {\n            return selected.map((/**\n             * @param {?} toggle\n             * @return {?}\n             */\n            toggle => toggle.value));\n        }\n        return selected[0] ? selected[0].value : undefined;\n    }\n    /**\n     * @param {?} newValue\n     * @return {?}\n     */\n    set value(newValue) {\n        this._setSelectionByValue(newValue);\n        this.valueChange.emit(this.value);\n    }\n    /**\n     * Selected button toggles in the group.\n     * @return {?}\n     */\n    get selected() {\n        /** @type {?} */\n        const selected = this._selectionModel ? this._selectionModel.selected : [];\n        return this.multiple ? selected : (selected[0] || null);\n    }\n    /**\n     * Whether multiple button toggles can be selected.\n     * @return {?}\n     */\n    get multiple() { return this._multiple; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set multiple(value) {\n        this._multiple = coerceBooleanProperty(value);\n    }\n    /**\n     * Whether multiple button toggle group is disabled.\n     * @return {?}\n     */\n    get disabled() { return this._disabled; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) {\n        this._disabled = coerceBooleanProperty(value);\n        if (this._buttonToggles) {\n            this._buttonToggles.forEach((/**\n             * @param {?} toggle\n             * @return {?}\n             */\n            toggle => toggle._markForCheck()));\n        }\n    }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        this._selectionModel = new SelectionModel(this.multiple, undefined, false);\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this._selectionModel.select(...this._buttonToggles.filter((/**\n         * @param {?} toggle\n         * @return {?}\n         */\n        toggle => toggle.checked)));\n    }\n    /**\n     * Sets the model value. Implemented as part of ControlValueAccessor.\n     * @param {?} value Value to be set to the model.\n     * @return {?}\n     */\n    writeValue(value) {\n        this.value = value;\n        this._changeDetector.markForCheck();\n    }\n    // Implemented as part of ControlValueAccessor.\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._controlValueAccessorChangeFn = fn;\n    }\n    // Implemented as part of ControlValueAccessor.\n    /**\n     * @param {?} fn\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this._onTouched = fn;\n    }\n    // Implemented as part of ControlValueAccessor.\n    /**\n     * @param {?} isDisabled\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this.disabled = isDisabled;\n    }\n    /**\n     * Dispatch change event with current selection and group value.\n     * @return {?}\n     */\n    _emitChangeEvent() {\n        /** @type {?} */\n        const selected = this.selected;\n        /** @type {?} */\n        const source = Array.isArray(selected) ? selected[selected.length - 1] : selected;\n        /** @type {?} */\n        const event = new MatButtonToggleChange((/** @type {?} */ (source)), this.value);\n        this._controlValueAccessorChangeFn(event.value);\n        this.change.emit(event);\n    }\n    /**\n     * Syncs a button toggle's selected state with the model value.\n     * @param {?} toggle Toggle to be synced.\n     * @param {?} select Whether the toggle should be selected.\n     * @param {?=} isUserInput Whether the change was a result of a user interaction.\n     * @param {?=} deferEvents Whether to defer emitting the change events.\n     * @return {?}\n     */\n    _syncButtonToggle(toggle, select, isUserInput = false, deferEvents = false) {\n        // Deselect the currently-selected toggle, if we're in single-selection\n        // mode and the button being toggled isn't selected at the moment.\n        if (!this.multiple && this.selected && !toggle.checked) {\n            ((/** @type {?} */ (this.selected))).checked = false;\n        }\n        if (this._selectionModel) {\n            if (select) {\n                this._selectionModel.select(toggle);\n            }\n            else {\n                this._selectionModel.deselect(toggle);\n            }\n        }\n        else {\n            deferEvents = true;\n        }\n        // We need to defer in some cases in order to avoid \"changed after checked errors\", however\n        // the side-effect is that we may end up updating the model value out of sequence in others\n        // The `deferEvents` flag allows us to decide whether to do it on a case-by-case basis.\n        if (deferEvents) {\n            Promise.resolve().then((/**\n             * @return {?}\n             */\n            () => this._updateModelValue(isUserInput)));\n        }\n        else {\n            this._updateModelValue(isUserInput);\n        }\n    }\n    /**\n     * Checks whether a button toggle is selected.\n     * @param {?} toggle\n     * @return {?}\n     */\n    _isSelected(toggle) {\n        return this._selectionModel && this._selectionModel.isSelected(toggle);\n    }\n    /**\n     * Determines whether a button toggle should be checked on init.\n     * @param {?} toggle\n     * @return {?}\n     */\n    _isPrechecked(toggle) {\n        if (typeof this._rawValue === 'undefined') {\n            return false;\n        }\n        if (this.multiple && Array.isArray(this._rawValue)) {\n            return this._rawValue.some((/**\n             * @param {?} value\n             * @return {?}\n             */\n            value => toggle.value != null && value === toggle.value));\n        }\n        return toggle.value === this._rawValue;\n    }\n    /**\n     * Updates the selection state of the toggles in the group based on a value.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _setSelectionByValue(value) {\n        this._rawValue = value;\n        if (!this._buttonToggles) {\n            return;\n        }\n        if (this.multiple && value) {\n            if (!Array.isArray(value)) {\n                throw Error('Value must be an array in multiple-selection mode.');\n            }\n            this._clearSelection();\n            value.forEach((/**\n             * @param {?} currentValue\n             * @return {?}\n             */\n            (currentValue) => this._selectValue(currentValue)));\n        }\n        else {\n            this._clearSelection();\n            this._selectValue(value);\n        }\n    }\n    /**\n     * Clears the selected toggles.\n     * @private\n     * @return {?}\n     */\n    _clearSelection() {\n        this._selectionModel.clear();\n        this._buttonToggles.forEach((/**\n         * @param {?} toggle\n         * @return {?}\n         */\n        toggle => toggle.checked = false));\n    }\n    /**\n     * Selects a value if there's a toggle that corresponds to it.\n     * @private\n     * @param {?} value\n     * @return {?}\n     */\n    _selectValue(value) {\n        /** @type {?} */\n        const correspondingOption = this._buttonToggles.find((/**\n         * @param {?} toggle\n         * @return {?}\n         */\n        toggle => {\n            return toggle.value != null && toggle.value === value;\n        }));\n        if (correspondingOption) {\n            correspondingOption.checked = true;\n            this._selectionModel.select(correspondingOption);\n        }\n    }\n    /**\n     * Syncs up the group's value with the model and emits the change event.\n     * @private\n     * @param {?} isUserInput\n     * @return {?}\n     */\n    _updateModelValue(isUserInput) {\n        // Only emit the change event for user input.\n        if (isUserInput) {\n            this._emitChangeEvent();\n        }\n        // Note: we emit this one no matter whether it was a user interaction, because\n        // it is used by Angular to sync up the two-way data binding.\n        this.valueChange.emit(this.value);\n    }\n}\nMatButtonToggleGroup.ɵfac = function MatButtonToggleGroup_Factory(t) { return new (t || MatButtonToggleGroup)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS, 8)); };\nMatButtonToggleGroup.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatButtonToggleGroup, selectors: [[\"mat-button-toggle-group\"]], contentQueries: function MatButtonToggleGroup_ContentQueries(rf, ctx, dirIndex) { if (rf & 1) {\n        ɵngcc0.ɵɵcontentQuery(dirIndex, MatButtonToggle, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._buttonToggles = _t);\n    } }, hostAttrs: [\"role\", \"group\", 1, \"mat-button-toggle-group\"], hostVars: 5, hostBindings: function MatButtonToggleGroup_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"aria-disabled\", ctx.disabled);\n        ɵngcc0.ɵɵclassProp(\"mat-button-toggle-vertical\", ctx.vertical)(\"mat-button-toggle-group-appearance-standard\", ctx.appearance === \"standard\");\n    } }, inputs: { appearance: \"appearance\", name: \"name\", vertical: \"vertical\", value: \"value\", multiple: \"multiple\", disabled: \"disabled\" }, outputs: { valueChange: \"valueChange\", change: \"change\" }, exportAs: [\"matButtonToggleGroup\"], features: [ɵngcc0.ɵɵProvidersFeature([\n            MAT_BUTTON_TOGGLE_GROUP_VALUE_ACCESSOR,\n            { provide: MatButtonToggleGroupMultiple, useExisting: MatButtonToggleGroup },\n        ])] });\n/** @nocollapse */\nMatButtonToggleGroup.ctorParameters = () => [\n    { type: ChangeDetectorRef },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS,] }] }\n];\nMatButtonToggleGroup.propDecorators = {\n    _buttonToggles: [{ type: ContentChildren, args: [forwardRef((/**\n                 * @return {?}\n                 */\n                () => MatButtonToggle)), {\n                    // Note that this would technically pick up toggles\n                    // from nested groups, but that's not a case that we support.\n                    descendants: true\n                },] }],\n    appearance: [{ type: Input }],\n    name: [{ type: Input }],\n    vertical: [{ type: Input }],\n    value: [{ type: Input }],\n    valueChange: [{ type: Output }],\n    multiple: [{ type: Input }],\n    disabled: [{ type: Input }],\n    change: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatButtonToggleGroup, [{\n        type: Directive,\n        args: [{\n                selector: 'mat-button-toggle-group',\n                providers: [\n                    MAT_BUTTON_TOGGLE_GROUP_VALUE_ACCESSOR,\n                    { provide: MatButtonToggleGroupMultiple, useExisting: MatButtonToggleGroup },\n                ],\n                host: {\n                    'role': 'group',\n                    'class': 'mat-button-toggle-group',\n                    '[attr.aria-disabled]': 'disabled',\n                    '[class.mat-button-toggle-vertical]': 'vertical',\n                    '[class.mat-button-toggle-group-appearance-standard]': 'appearance === \"standard\"'\n                },\n                exportAs: 'matButtonToggleGroup'\n            }]\n    }], function () { return [{ type: ɵngcc0.ChangeDetectorRef }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS]\n            }] }]; }, { valueChange: [{\n            type: Output\n        }], change: [{\n            type: Output\n        }], appearance: [{\n            type: Input\n        }], name: [{\n            type: Input\n        }], vertical: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }], multiple: [{\n            type: Input\n        }], disabled: [{\n            type: Input\n        }], _buttonToggles: [{\n            type: ContentChildren,\n            args: [forwardRef(( /**\n                             * @return {?}\n                             */() => MatButtonToggle)), {\n                    // Note that this would technically pick up toggles\n                    // from nested groups, but that's not a case that we support.\n                    descendants: true\n                }]\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatButtonToggleGroup.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatButtonToggleGroup.ngAcceptInputType_multiple;\n    /** @type {?} */\n    MatButtonToggleGroup.ngAcceptInputType_vertical;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggleGroup.prototype._vertical;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggleGroup.prototype._multiple;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggleGroup.prototype._disabled;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggleGroup.prototype._selectionModel;\n    /**\n     * Reference to the raw value that the consumer tried to assign. The real\n     * value will exclude any values from this one that don't correspond to a\n     * toggle. Useful for the cases where the value is assigned before the toggles\n     * have been initialized or at the same that they're being swapped out.\n     * @type {?}\n     * @private\n     */\n    MatButtonToggleGroup.prototype._rawValue;\n    /**\n     * The method to be called in order to update ngModel.\n     * Now `ngModel` binding is not supported in multiple selection mode.\n     * @type {?}\n     */\n    MatButtonToggleGroup.prototype._controlValueAccessorChangeFn;\n    /**\n     * onTouch function registered via registerOnTouch (ControlValueAccessor).\n     * @type {?}\n     */\n    MatButtonToggleGroup.prototype._onTouched;\n    /**\n     * Child button toggle buttons.\n     * @type {?}\n     */\n    MatButtonToggleGroup.prototype._buttonToggles;\n    /**\n     * The appearance for all the buttons in the group.\n     * @type {?}\n     */\n    MatButtonToggleGroup.prototype.appearance;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggleGroup.prototype._name;\n    /**\n     * Event that emits whenever the value of the group changes.\n     * Used to facilitate two-way data binding.\n     * \\@docs-private\n     * @type {?}\n     */\n    MatButtonToggleGroup.prototype.valueChange;\n    /**\n     * Event emitted when the group's value changes.\n     * @type {?}\n     */\n    MatButtonToggleGroup.prototype.change;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggleGroup.prototype._changeDetector;\n}\n// Boilerplate for applying mixins to the MatButtonToggle class.\n/**\n * \\@docs-private\n */\nclass MatButtonToggleBase {\n}\n/** @type {?} */\nconst _MatButtonToggleMixinBase = mixinDisableRipple(MatButtonToggleBase);\n/**\n * Single button inside of a toggle group.\n */\nclass MatButtonToggle extends _MatButtonToggleMixinBase {\n    /**\n     * @param {?} toggleGroup\n     * @param {?} _changeDetectorRef\n     * @param {?} _elementRef\n     * @param {?} _focusMonitor\n     * @param {?} defaultTabIndex\n     * @param {?=} defaultOptions\n     */\n    constructor(toggleGroup, _changeDetectorRef, _elementRef, _focusMonitor, \n    // @breaking-change 8.0.0 `defaultTabIndex` to be made a required parameter.\n    defaultTabIndex, defaultOptions) {\n        super();\n        this._changeDetectorRef = _changeDetectorRef;\n        this._elementRef = _elementRef;\n        this._focusMonitor = _focusMonitor;\n        this._isSingleSelector = false;\n        this._checked = false;\n        /**\n         * Users can specify the `aria-labelledby` attribute which will be forwarded to the input element\n         */\n        this.ariaLabelledby = null;\n        this._disabled = false;\n        /**\n         * Event emitted when the group value changes.\n         */\n        this.change = new EventEmitter();\n        /** @type {?} */\n        const parsedTabIndex = Number(defaultTabIndex);\n        this.tabIndex = (parsedTabIndex || parsedTabIndex === 0) ? parsedTabIndex : null;\n        this.buttonToggleGroup = toggleGroup;\n        this.appearance =\n            defaultOptions && defaultOptions.appearance ? defaultOptions.appearance : 'standard';\n    }\n    /**\n     * Unique ID for the underlying `button` element.\n     * @return {?}\n     */\n    get buttonId() { return `${this.id}-button`; }\n    /**\n     * The appearance style of the button.\n     * @return {?}\n     */\n    get appearance() {\n        return this.buttonToggleGroup ? this.buttonToggleGroup.appearance : this._appearance;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set appearance(value) {\n        this._appearance = value;\n    }\n    /**\n     * Whether the button is checked.\n     * @return {?}\n     */\n    get checked() {\n        return this.buttonToggleGroup ? this.buttonToggleGroup._isSelected(this) : this._checked;\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set checked(value) {\n        /** @type {?} */\n        const newValue = coerceBooleanProperty(value);\n        if (newValue !== this._checked) {\n            this._checked = newValue;\n            if (this.buttonToggleGroup) {\n                this.buttonToggleGroup._syncButtonToggle(this, this._checked);\n            }\n            this._changeDetectorRef.markForCheck();\n        }\n    }\n    /**\n     * Whether the button is disabled.\n     * @return {?}\n     */\n    get disabled() {\n        return this._disabled || (this.buttonToggleGroup && this.buttonToggleGroup.disabled);\n    }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set disabled(value) { this._disabled = coerceBooleanProperty(value); }\n    /**\n     * @return {?}\n     */\n    ngOnInit() {\n        /** @type {?} */\n        const group = this.buttonToggleGroup;\n        this._isSingleSelector = group && !group.multiple;\n        this._type = this._isSingleSelector ? 'radio' : 'checkbox';\n        this.id = this.id || `mat-button-toggle-${_uniqueIdCounter++}`;\n        if (this._isSingleSelector) {\n            this.name = group.name;\n        }\n        if (group) {\n            if (group._isPrechecked(this)) {\n                this.checked = true;\n            }\n            else if (group._isSelected(this) !== this._checked) {\n                // As as side effect of the circular dependency between the toggle group and the button,\n                // we may end up in a state where the button is supposed to be checked on init, but it\n                // isn't, because the checked value was assigned too early. This can happen when Ivy\n                // assigns the static input value before the `ngOnInit` has run.\n                group._syncButtonToggle(this, this._checked);\n            }\n        }\n        this._focusMonitor.monitor(this._elementRef, true);\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        /** @type {?} */\n        const group = this.buttonToggleGroup;\n        this._focusMonitor.stopMonitoring(this._elementRef);\n        // Remove the toggle from the selection once it's destroyed. Needs to happen\n        // on the next tick in order to avoid \"changed after checked\" errors.\n        if (group && group._isSelected(this)) {\n            group._syncButtonToggle(this, false, false, true);\n        }\n    }\n    /**\n     * Focuses the button.\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(options) {\n        this._buttonElement.nativeElement.focus(options);\n    }\n    /**\n     * Checks the button toggle due to an interaction with the underlying native button.\n     * @return {?}\n     */\n    _onButtonClick() {\n        /** @type {?} */\n        const newChecked = this._isSingleSelector ? true : !this._checked;\n        if (newChecked !== this._checked) {\n            this._checked = newChecked;\n            if (this.buttonToggleGroup) {\n                this.buttonToggleGroup._syncButtonToggle(this, this._checked, true);\n                this.buttonToggleGroup._onTouched();\n            }\n        }\n        // Emit a change event when it's the single selector\n        this.change.emit(new MatButtonToggleChange(this, this.value));\n    }\n    /**\n     * Marks the button toggle as needing checking for change detection.\n     * This method is exposed because the parent button toggle group will directly\n     * update bound properties of the radio button.\n     * @return {?}\n     */\n    _markForCheck() {\n        // When the group value changes, the button will not be notified.\n        // Use `markForCheck` to explicit update button toggle's status.\n        this._changeDetectorRef.markForCheck();\n    }\n}\nMatButtonToggle.ɵfac = function MatButtonToggle_Factory(t) { return new (t || MatButtonToggle)(ɵngcc0.ɵɵdirectiveInject(MatButtonToggleGroup, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵinjectAttribute('tabindex'), ɵngcc0.ɵɵdirectiveInject(MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS, 8)); };\nMatButtonToggle.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatButtonToggle, selectors: [[\"mat-button-toggle\"]], viewQuery: function MatButtonToggle_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._buttonElement = _t.first);\n    } }, hostAttrs: [1, \"mat-button-toggle\"], hostVars: 11, hostBindings: function MatButtonToggle_HostBindings(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵlistener(\"focus\", function MatButtonToggle_focus_HostBindingHandler() { return ctx.focus(); });\n    } if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"tabindex\", 0 - 1)(\"id\", ctx.id)(\"name\", null);\n        ɵngcc0.ɵɵclassProp(\"mat-button-toggle-standalone\", !ctx.buttonToggleGroup)(\"mat-button-toggle-checked\", ctx.checked)(\"mat-button-toggle-disabled\", ctx.disabled)(\"mat-button-toggle-appearance-standard\", ctx.appearance === \"standard\");\n    } }, inputs: { disableRipple: \"disableRipple\", ariaLabelledby: [\"aria-labelledby\", \"ariaLabelledby\"], tabIndex: \"tabIndex\", appearance: \"appearance\", checked: \"checked\", disabled: \"disabled\", id: \"id\", name: \"name\", ariaLabel: [\"aria-label\", \"ariaLabel\"], value: \"value\" }, outputs: { change: \"change\" }, exportAs: [\"matButtonToggle\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c1, decls: 6, vars: 9, consts: [[\"type\", \"button\", 1, \"mat-button-toggle-button\", \"mat-focus-indicator\", 3, \"id\", \"disabled\", \"click\"], [\"button\", \"\"], [1, \"mat-button-toggle-label-content\"], [1, \"mat-button-toggle-focus-overlay\"], [\"matRipple\", \"\", 1, \"mat-button-toggle-ripple\", 3, \"matRippleTrigger\", \"matRippleDisabled\"]], template: function MatButtonToggle_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵelementStart(0, \"button\", 0, 1);\n        ɵngcc0.ɵɵlistener(\"click\", function MatButtonToggle_Template_button_click_0_listener() { return ctx._onButtonClick(); });\n        ɵngcc0.ɵɵelementStart(2, \"div\", 2);\n        ɵngcc0.ɵɵprojection(3);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelement(4, \"div\", 3);\n        ɵngcc0.ɵɵelement(5, \"div\", 4);\n    } if (rf & 2) {\n        const _r0 = ɵngcc0.ɵɵreference(1);\n        ɵngcc0.ɵɵproperty(\"id\", ctx.buttonId)(\"disabled\", ctx.disabled || null);\n        ɵngcc0.ɵɵattribute(\"tabindex\", ctx.disabled ? 0 - 1 : ctx.tabIndex)(\"aria-pressed\", ctx.checked)(\"name\", ctx.name || null)(\"aria-label\", ctx.ariaLabel)(\"aria-labelledby\", ctx.ariaLabelledby);\n        ɵngcc0.ɵɵadvance(5);\n        ɵngcc0.ɵɵproperty(\"matRippleTrigger\", _r0)(\"matRippleDisabled\", ctx.disableRipple || ctx.disabled);\n    } }, directives: [ɵngcc2.MatRipple], styles: [\".mat-button-toggle-standalone,.mat-button-toggle-group{position:relative;display:inline-flex;flex-direction:row;white-space:nowrap;overflow:hidden;border-radius:2px;-webkit-tap-highlight-color:transparent}.cdk-high-contrast-active .mat-button-toggle-standalone,.cdk-high-contrast-active .mat-button-toggle-group{outline:solid 1px}.mat-button-toggle-standalone.mat-button-toggle-appearance-standard,.mat-button-toggle-group-appearance-standard{border-radius:4px}.cdk-high-contrast-active .mat-button-toggle-standalone.mat-button-toggle-appearance-standard,.cdk-high-contrast-active .mat-button-toggle-group-appearance-standard{outline:0}.mat-button-toggle-vertical{flex-direction:column}.mat-button-toggle-vertical .mat-button-toggle-label-content{display:block}.mat-button-toggle{white-space:nowrap;position:relative}.mat-button-toggle .mat-icon svg{vertical-align:top}.mat-button-toggle.cdk-keyboard-focused .mat-button-toggle-focus-overlay{opacity:1}.cdk-high-contrast-active .mat-button-toggle.cdk-keyboard-focused .mat-button-toggle-focus-overlay{opacity:.5}.mat-button-toggle-appearance-standard:not(.mat-button-toggle-disabled):hover .mat-button-toggle-focus-overlay{opacity:.04}.mat-button-toggle-appearance-standard.cdk-keyboard-focused:not(.mat-button-toggle-disabled) .mat-button-toggle-focus-overlay{opacity:.12}.cdk-high-contrast-active .mat-button-toggle-appearance-standard.cdk-keyboard-focused:not(.mat-button-toggle-disabled) .mat-button-toggle-focus-overlay{opacity:.5}@media(hover: none){.mat-button-toggle-appearance-standard:not(.mat-button-toggle-disabled):hover .mat-button-toggle-focus-overlay{display:none}}.mat-button-toggle-label-content{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;display:inline-block;line-height:36px;padding:0 16px;position:relative}.mat-button-toggle-appearance-standard .mat-button-toggle-label-content{line-height:48px;padding:0 12px}.mat-button-toggle-label-content>*{vertical-align:middle}.mat-button-toggle-focus-overlay{border-radius:inherit;pointer-events:none;opacity:0;top:0;left:0;right:0;bottom:0;position:absolute}.mat-button-toggle-checked .mat-button-toggle-focus-overlay{border-bottom:solid 36px}.cdk-high-contrast-active .mat-button-toggle-checked .mat-button-toggle-focus-overlay{opacity:.5;height:0}.cdk-high-contrast-active .mat-button-toggle-checked.mat-button-toggle-appearance-standard .mat-button-toggle-focus-overlay{border-bottom:solid 48px}.mat-button-toggle .mat-button-toggle-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}.mat-button-toggle-button{border:0;background:none;color:inherit;padding:0;margin:0;font:inherit;outline:none;width:100%;cursor:pointer}.mat-button-toggle-disabled .mat-button-toggle-button{cursor:default}.mat-button-toggle-button::-moz-focus-inner{border:0}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatButtonToggle.ctorParameters = () => [\n    { type: MatButtonToggleGroup, decorators: [{ type: Optional }] },\n    { type: ChangeDetectorRef },\n    { type: ElementRef },\n    { type: FocusMonitor },\n    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS,] }] }\n];\nMatButtonToggle.propDecorators = {\n    ariaLabel: [{ type: Input, args: ['aria-label',] }],\n    ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }],\n    _buttonElement: [{ type: ViewChild, args: ['button',] }],\n    id: [{ type: Input }],\n    name: [{ type: Input }],\n    value: [{ type: Input }],\n    tabIndex: [{ type: Input }],\n    appearance: [{ type: Input }],\n    checked: [{ type: Input }],\n    disabled: [{ type: Input }],\n    change: [{ type: Output }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatButtonToggle, [{\n        type: Component,\n        args: [{\n                selector: 'mat-button-toggle',\n                template: \"<button #button class=\\\"mat-button-toggle-button mat-focus-indicator\\\"\\n        type=\\\"button\\\"\\n        [id]=\\\"buttonId\\\"\\n        [attr.tabindex]=\\\"disabled ? -1 : tabIndex\\\"\\n        [attr.aria-pressed]=\\\"checked\\\"\\n        [disabled]=\\\"disabled || null\\\"\\n        [attr.name]=\\\"name || null\\\"\\n        [attr.aria-label]=\\\"ariaLabel\\\"\\n        [attr.aria-labelledby]=\\\"ariaLabelledby\\\"\\n        (click)=\\\"_onButtonClick()\\\">\\n  <div class=\\\"mat-button-toggle-label-content\\\">\\n    <ng-content></ng-content>\\n  </div>\\n</button>\\n\\n<div class=\\\"mat-button-toggle-focus-overlay\\\"></div>\\n<div class=\\\"mat-button-toggle-ripple\\\" matRipple\\n     [matRippleTrigger]=\\\"button\\\"\\n     [matRippleDisabled]=\\\"this.disableRipple || this.disabled\\\">\\n</div>\\n\",\n                encapsulation: ViewEncapsulation.None,\n                exportAs: 'matButtonToggle',\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                inputs: ['disableRipple'],\n                host: {\n                    '[class.mat-button-toggle-standalone]': '!buttonToggleGroup',\n                    '[class.mat-button-toggle-checked]': 'checked',\n                    '[class.mat-button-toggle-disabled]': 'disabled',\n                    '[class.mat-button-toggle-appearance-standard]': 'appearance === \"standard\"',\n                    'class': 'mat-button-toggle',\n                    // Always reset the tabindex to -1 so it doesn't conflict with the one on the `button`,\n                    // but can still receive focus from things like cdkFocusInitial.\n                    '[attr.tabindex]': '-1',\n                    '[attr.id]': 'id',\n                    '[attr.name]': 'null',\n                    '(focus)': 'focus()'\n                },\n                styles: [\".mat-button-toggle-standalone,.mat-button-toggle-group{position:relative;display:inline-flex;flex-direction:row;white-space:nowrap;overflow:hidden;border-radius:2px;-webkit-tap-highlight-color:transparent}.cdk-high-contrast-active .mat-button-toggle-standalone,.cdk-high-contrast-active .mat-button-toggle-group{outline:solid 1px}.mat-button-toggle-standalone.mat-button-toggle-appearance-standard,.mat-button-toggle-group-appearance-standard{border-radius:4px}.cdk-high-contrast-active .mat-button-toggle-standalone.mat-button-toggle-appearance-standard,.cdk-high-contrast-active .mat-button-toggle-group-appearance-standard{outline:0}.mat-button-toggle-vertical{flex-direction:column}.mat-button-toggle-vertical .mat-button-toggle-label-content{display:block}.mat-button-toggle{white-space:nowrap;position:relative}.mat-button-toggle .mat-icon svg{vertical-align:top}.mat-button-toggle.cdk-keyboard-focused .mat-button-toggle-focus-overlay{opacity:1}.cdk-high-contrast-active .mat-button-toggle.cdk-keyboard-focused .mat-button-toggle-focus-overlay{opacity:.5}.mat-button-toggle-appearance-standard:not(.mat-button-toggle-disabled):hover .mat-button-toggle-focus-overlay{opacity:.04}.mat-button-toggle-appearance-standard.cdk-keyboard-focused:not(.mat-button-toggle-disabled) .mat-button-toggle-focus-overlay{opacity:.12}.cdk-high-contrast-active .mat-button-toggle-appearance-standard.cdk-keyboard-focused:not(.mat-button-toggle-disabled) .mat-button-toggle-focus-overlay{opacity:.5}@media(hover: none){.mat-button-toggle-appearance-standard:not(.mat-button-toggle-disabled):hover .mat-button-toggle-focus-overlay{display:none}}.mat-button-toggle-label-content{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;display:inline-block;line-height:36px;padding:0 16px;position:relative}.mat-button-toggle-appearance-standard .mat-button-toggle-label-content{line-height:48px;padding:0 12px}.mat-button-toggle-label-content>*{vertical-align:middle}.mat-button-toggle-focus-overlay{border-radius:inherit;pointer-events:none;opacity:0;top:0;left:0;right:0;bottom:0;position:absolute}.mat-button-toggle-checked .mat-button-toggle-focus-overlay{border-bottom:solid 36px}.cdk-high-contrast-active .mat-button-toggle-checked .mat-button-toggle-focus-overlay{opacity:.5;height:0}.cdk-high-contrast-active .mat-button-toggle-checked.mat-button-toggle-appearance-standard .mat-button-toggle-focus-overlay{border-bottom:solid 48px}.mat-button-toggle .mat-button-toggle-ripple{top:0;left:0;right:0;bottom:0;position:absolute;pointer-events:none}.mat-button-toggle-button{border:0;background:none;color:inherit;padding:0;margin:0;font:inherit;outline:none;width:100%;cursor:pointer}.mat-button-toggle-disabled .mat-button-toggle-button{cursor:default}.mat-button-toggle-button::-moz-focus-inner{border:0}\\n\"]\n            }]\n    }], function () { return [{ type: MatButtonToggleGroup, decorators: [{\n                type: Optional\n            }] }, { type: ɵngcc0.ChangeDetectorRef }, { type: ɵngcc0.ElementRef }, { type: ɵngcc1.FocusMonitor }, { type: String, decorators: [{\n                type: Attribute,\n                args: ['tabindex']\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS]\n            }] }]; }, { ariaLabelledby: [{\n            type: Input,\n            args: ['aria-labelledby']\n        }], change: [{\n            type: Output\n        }], tabIndex: [{\n            type: Input\n        }], appearance: [{\n            type: Input\n        }], checked: [{\n            type: Input\n        }], disabled: [{\n            type: Input\n        }], id: [{\n            type: Input\n        }], name: [{\n            type: Input\n        }], ariaLabel: [{\n            type: Input,\n            args: ['aria-label']\n        }], _buttonElement: [{\n            type: ViewChild,\n            args: ['button']\n        }], value: [{\n            type: Input\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatButtonToggle.ngAcceptInputType_checked;\n    /** @type {?} */\n    MatButtonToggle.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatButtonToggle.ngAcceptInputType_vertical;\n    /** @type {?} */\n    MatButtonToggle.ngAcceptInputType_multiple;\n    /** @type {?} */\n    MatButtonToggle.ngAcceptInputType_disableRipple;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggle.prototype._isSingleSelector;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggle.prototype._checked;\n    /**\n     * Attached to the aria-label attribute of the host element. In most cases, aria-labelledby will\n     * take precedence so this may be omitted.\n     * @type {?}\n     */\n    MatButtonToggle.prototype.ariaLabel;\n    /**\n     * Users can specify the `aria-labelledby` attribute which will be forwarded to the input element\n     * @type {?}\n     */\n    MatButtonToggle.prototype.ariaLabelledby;\n    /**\n     * Type of the button toggle. Either 'radio' or 'checkbox'.\n     * @type {?}\n     */\n    MatButtonToggle.prototype._type;\n    /** @type {?} */\n    MatButtonToggle.prototype._buttonElement;\n    /**\n     * The parent button toggle group (exclusive selection). Optional.\n     * @type {?}\n     */\n    MatButtonToggle.prototype.buttonToggleGroup;\n    /**\n     * The unique ID for this button toggle.\n     * @type {?}\n     */\n    MatButtonToggle.prototype.id;\n    /**\n     * HTML's 'name' attribute used to group radios for unique selection.\n     * @type {?}\n     */\n    MatButtonToggle.prototype.name;\n    /**\n     * MatButtonToggleGroup reads this to assign its own value.\n     * @type {?}\n     */\n    MatButtonToggle.prototype.value;\n    /**\n     * Tabindex for the toggle.\n     * @type {?}\n     */\n    MatButtonToggle.prototype.tabIndex;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggle.prototype._appearance;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggle.prototype._disabled;\n    /**\n     * Event emitted when the group value changes.\n     * @type {?}\n     */\n    MatButtonToggle.prototype.change;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggle.prototype._changeDetectorRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggle.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatButtonToggle.prototype._focusMonitor;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/button-toggle/button-toggle-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatButtonToggleModule {\n}\nMatButtonToggleModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatButtonToggleModule });\nMatButtonToggleModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatButtonToggleModule_Factory(t) { return new (t || MatButtonToggleModule)(); }, imports: [[MatCommonModule, MatRippleModule], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatButtonToggleModule, { declarations: function () { return [MatButtonToggleGroup, MatButtonToggle]; }, imports: function () { return [MatCommonModule, MatRippleModule]; }, exports: function () { return [MatCommonModule, MatButtonToggleGroup, MatButtonToggle]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatButtonToggleModule, [{\n        type: NgModule,\n        args: [{\n                imports: [MatCommonModule, MatRippleModule],\n                exports: [MatCommonModule, MatButtonToggleGroup, MatButtonToggle],\n                declarations: [MatButtonToggleGroup, MatButtonToggle]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/button-toggle/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_BUTTON_TOGGLE_DEFAULT_OPTIONS, MAT_BUTTON_TOGGLE_GROUP_VALUE_ACCESSOR, MatButtonToggle, MatButtonToggleChange, MatButtonToggleGroup, MatButtonToggleGroupMultiple, MatButtonToggleModule };\n\n//# sourceMappingURL=button-toggle.js.map","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {ActiveObjectService} from '../../../../image-editor/canvas/active-object/active-object.service';\nimport { MatButtonToggleChange } from '@angular/material/button-toggle';\n\n@Component({\n    selector: 'text-controls-drawer',\n    templateUrl: './text-controls-drawer.component.html',\n    styleUrls: ['./text-controls-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class TextControlsDrawerComponent {\n    constructor(\n        public activeObject: ActiveObjectService,\n    ) {}\n\n    public setTextStyle(e: MatButtonToggleChange) {\n        this.activeObject.form.patchValue({\n            underline: e.value.indexOf('underline') > -1,\n            linethrough: e.value.indexOf('linethrough') > -1,\n            fontStyle: e.value.indexOf('italic') > -1 ? 'italic' : 'normal',\n        });\n    }\n}\n","import {ChangeDetectionStrategy, Component, Input, ViewEncapsulation} from '@angular/core';\nimport {ActiveObjectService} from '../../../image-editor/canvas/active-object/active-object.service';\n\n@Component({\n    selector: 'color-controls-drawer',\n    templateUrl: './color-controls-drawer.component.html',\n    styleUrls: ['./color-controls-drawer.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None,\n})\nexport class ColorControlsDrawerComponent {\n    @Input() controlName: 'fill'|'backgroundColor';\n    constructor(public activeObject: ActiveObjectService) {}\n}\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {ActiveObjectService} from '../../../image-editor/canvas/active-object/active-object.service';\n\n@Component({\n    selector: 'outline-controls-drawer',\n    templateUrl: './outline-controls-drawer.component.html',\n    styleUrls: ['./outline-controls-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class OutlineControlsDrawerComponent {\n    constructor(public activeObject: ActiveObjectService) {}\n}\n","import {Component, ElementRef, ViewChild, ViewEncapsulation} from '@angular/core';\nimport {ColorpickerPanelComponent} from 'common/core/ui/color-picker/colorpicker-panel.component';\nimport {OverlayPanel} from 'common/core/ui/overlay-panel/overlay-panel.service';\nimport {ActiveObjectService} from '../../../image-editor/canvas/active-object/active-object.service';\nimport {BOTTOM_POSITION} from '@common/core/ui/overlay-panel/positions/bottom-position';\n\n@Component({\n    selector: 'shadow-controls-drawer',\n    templateUrl: './shadow-controls-drawer.component.html',\n    styleUrls: ['./shadow-controls-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n})\nexport class ShadowControlsDrawer {\n    @ViewChild('colorPickerButton', { read: ElementRef }) colorPickerButton: ElementRef;\n\n    constructor(\n        private overlayPanel: OverlayPanel,\n        public activeObject: ActiveObjectService,\n    ) {}\n\n    public openColorPicker() {\n        this.overlayPanel.open(ColorpickerPanelComponent, {position: BOTTOM_POSITION, origin: this.colorPickerButton})\n            .valueChanged().subscribe(color => {\n                this.activeObject.form.get('shadow.color').patchValue(color);\n            });\n    }\n}\n\n","<div class=\"tool-panel-content\">\n    <color-widget [formControl]=\"colorControl\" trans>Canvas Background</color-widget>\n</div>\n","<ng-container [formGroup]=\"activeObject.form\">\n    <mat-button-toggle-group formControlName=\"textAlign\" aria-label=\"Text Align\" class=\"text-align-group\">\n        <mat-button-toggle value=\"left\"><mat-icon svgIcon=\"format-align-left\"></mat-icon></mat-button-toggle>\n        <mat-button-toggle value=\"center\"><mat-icon svgIcon=\"format-align-center\"></mat-icon></mat-button-toggle>\n        <mat-button-toggle value=\"right\"><mat-icon svgIcon=\"format-align-right\"></mat-icon></mat-button-toggle>\n    </mat-button-toggle-group>\n\n    <mat-button-toggle-group aria-label=\"Text Style\" [multiple]=\"true\" (change)=\"setTextStyle($event)\">\n        <mat-button-toggle [checked]=\"activeObject.form.get('underline').value\" value=\"underline\"><mat-icon svgIcon=\"format-underlined\"></mat-icon></mat-button-toggle>\n        <mat-button-toggle [checked]=\"activeObject.form.get('linethrough').value\" value=\"linethrough\"><mat-icon svgIcon=\"format-strikethrough\"></mat-icon></mat-button-toggle>\n        <mat-button-toggle [checked]=\"activeObject.form.get('fontStyle').value === 'italic'\" value=\"italic\"><mat-icon svgIcon=\"format-italic\"></mat-icon></mat-button-toggle>\n    </mat-button-toggle-group>\n\n    <text-font-selector formControlName=\"fontFamily\"></text-font-selector>\n</ng-container>","<color-widget [formControl]=\"activeObject.form.get(controlName)\">\n    <ng-content></ng-content>\n</color-widget>","<button class=\"round-action-button color-picker-button\" mat-icon-button (click)=\"openColorPicker()\" #colorPickerButton>\n    <mat-icon svgIcon=\"color-wheel-custom\"></mat-icon>\n</button>\n<ng-container [formGroup]=\"activeObject.form.get('shadow')\">\n    <div class=\"slider-container\">\n        <div class=\"slider-label\" trans>Blur</div>\n        <mat-slider min=\"1\" max=\"20\" formControlName=\"blur\"></mat-slider>\n    </div>\n    <div class=\"slider-container\">\n        <div class=\"slider-label\" trans>Offset X</div>\n        <mat-slider min=\"1\" max=\"20\" formControlName=\"offsetX\"></mat-slider>\n    </div>\n    <div class=\"slider-container\">\n        <div class=\"slider-label\" trans>Offset Y</div>\n        <mat-slider min=\"1\" max=\"20\" formControlName=\"offsetY\"></mat-slider>\n    </div>\n</ng-container>","<ng-container [formGroup]=\"activeObject.form\">\n    <color-widget formControlName=\"stroke\"></color-widget>\n\n    <div class=\"slider-container\">\n        <div class=\"slider-label\" trans>Outline Width</div>\n        <mat-slider min=\"0\" max=\"20\" step=\"1\" formControlName=\"strokeWidth\"></mat-slider>\n    </div>\n</ng-container>","<div class=\"button-with-image\" (click)=\"openUploadDialog()\">\n    <mat-icon svgIcon=\"add-image-custom\"></mat-icon>\n    <div class=\"bottom-label\" trans>Upload</div>\n</div>\n\n<div class=\"texture button-with-image\"\n     *ngFor=\"let index of defaultTextures\"\n     (click)=\"fillWithPattern(index)\">\n    <div class=\"bg-image\" [style.background-image]=\"getTextureBgStyle(index)\"></div>\n</div>","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {Settings} from 'common/core/config/settings.service';\nimport {DomSanitizer, SafeStyle} from '@angular/platform-browser';\nimport {ActiveObjectService} from '../../../../image-editor/canvas/active-object/active-object.service';\nimport {FillToolService} from '../../../../image-editor/tools/fill/fill-tool.service';\nimport {ImportToolService} from '../../../../image-editor/tools/import/import-tool.service';\n\n@Component({\n    selector: 'texture-controls-drawer',\n    templateUrl: './texture-controls-drawer.component.html',\n    styleUrls: ['./texture-controls-drawer.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None,\n})\nexport class TextureControlsDrawerComponent {\n    public defaultTextures = Array.from(Array(28).keys());\n\n    constructor(\n        public activeObject: ActiveObjectService,\n        private settings: Settings,\n        private sanitizer: DomSanitizer,\n        private fillTool: FillToolService,\n        private importTool: ImportToolService,\n    ) {}\n\n    public getTextureBgStyle(index: number): SafeStyle {\n        return this.sanitizer.bypassSecurityTrustStyle(\n            'url(' + this.getTextureUrl(index) + ')'\n        );\n    }\n\n    private getTextureUrl(index: number): string {\n        return this.settings.getAssetUrl('images/textures/' + index + '.png', true);\n    }\n\n    public fillWithPattern(index: number) {\n        this.fillTool.withPattern(this.getTextureUrl(index));\n    }\n\n    public openUploadDialog() {\n        this.importTool.importAndGetData().then(data => {\n            this.fillTool.withPattern(data);\n        });\n    }\n}\n","<div class=\"gradient button-with-image no-label\"\n     *ngFor=\"let gradient of defaultGradients; index as index;\"\n     (click)=\"fillWithGradient(index)\">\n    <div class=\"bg-image\" [style.background-image]=\"getGradientBgStyle(index + 1)\"></div>\n</div>","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {Settings} from 'common/core/config/settings.service';\nimport {DomSanitizer, SafeStyle} from '@angular/platform-browser';\nimport {gradientPresets} from '../../../../image-editor/tools/gradient-presets';\nimport {ActiveObjectService} from '../../../../image-editor/canvas/active-object/active-object.service';\nimport {FillToolService} from '../../../../image-editor/tools/fill/fill-tool.service';\n\n@Component({\n    selector: 'gradient-controls-drawer',\n    templateUrl: './gradient-controls-drawer.component.html',\n    styleUrls: ['./gradient-controls-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class GradientControlsDrawerComponent {\n    public defaultGradients = gradientPresets;\n\n    constructor(\n        public activeObject: ActiveObjectService,\n        private settings: Settings,\n        private sanitizer: DomSanitizer,\n        private fillTool: FillToolService,\n    ) {}\n\n    public getGradientBgStyle(index: number): SafeStyle {\n        return this.sanitizer.bypassSecurityTrustStyle(\n            'url(' + this.getGradientUrl(index) + ')'\n        );\n    }\n\n    private getGradientUrl(index: number): string {\n        return this.settings.getAssetUrl('images/gradients/' + index + '.png', true);\n    }\n\n    public fillWithGradient(index: number) {\n        this.fillTool.withGradient(index);\n    }\n}\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {ActiveObjectService} from '../../../../image-editor/canvas/active-object/active-object.service';\n\n@Component({\n    selector: 'opacity-controls-drawer',\n    templateUrl: './opacity-controls-drawer.component.html',\n    styleUrls: ['./opacity-controls-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n})\nexport class OpacityControlsDrawer {\n    constructor(public activeObject: ActiveObjectService) {}\n}\n","<div class=\"slider-container\">\n    <div class=\"slider-label\" trans>Opacity</div>\n    <mat-slider min=\"0.1\" max=\"1\" step=\"0.1\" [formControl]=\"activeObject.form.get('opacity')\"></mat-slider>\n</div>","<div class=\"tool-panel-content\" [class.hidden]=\"activePanel$ | async\">\n    <div class=\"button-with-image\" (click)=\"openPanel('textStyle')\" *ngIf=\"activeObjIsText$ | async\">\n        <mat-icon svgIcon=\"text-options-custom\"></mat-icon>\n        <div class=\"bottom-label\" trans>Text Style</div>\n    </div>\n\n    <div class=\"button-with-image\" (click)=\"openPanel('color')\">\n        <mat-icon svgIcon=\"color-custom\"></mat-icon>\n        <div class=\"bottom-label\" trans>Color</div>\n    </div>\n\n    <div class=\"button-with-image\" (click)=\"openPanel('shadow')\">\n        <mat-icon svgIcon=\"shadow-custom\"></mat-icon>\n        <div class=\"bottom-label\" trans>Shadow</div>\n    </div>\n\n    <ng-container *ngIf=\"!(activeObjIsSvg$ | async)\">\n        <div class=\"button-with-image\" (click)=\"openPanel('outline')\">\n            <mat-icon svgIcon=\"outline-custom\"></mat-icon>\n            <div class=\"bottom-label\" trans>Outline</div>\n        </div>\n\n        <div class=\"button-with-image\" (click)=\"openPanel('background')\" >\n            <mat-icon svgIcon=\"background-custom\"></mat-icon>\n            <div class=\"bottom-label\" trans>Background</div>\n        </div>\n    </ng-container>\n\n    <div class=\"button-with-image\" (click)=\"openPanel('texture')\">\n        <mat-icon svgIcon=\"texture-custom\"></mat-icon>\n        <div class=\"bottom-label\" trans>Texture</div>\n    </div>\n\n    <div class=\"button-with-image\" (click)=\"openPanel('gradient')\" *ngIf=\"!(activeObjIsSvg$ | async)\">\n        <mat-icon svgIcon=\"gradient-custom\"></mat-icon>\n        <div class=\"bottom-label\" trans>Gradient</div>\n    </div>\n\n    <div class=\"button-with-image\" (click)=\"openPanel('opacity')\">\n        <mat-icon svgIcon=\"opacity-custom\"></mat-icon>\n        <div class=\"bottom-label\" trans>Opacity</div>\n    </div>\n\n    <div class=\"button-with-image\" (click)=\"replaceImage()\" *ngIf=\"activeObjIsImage$ | async\">\n        <mat-icon svgIcon=\"switch-camera\"></mat-icon>\n        <div class=\"bottom-label\" trans>Replace</div>\n    </div>\n</div>\n\n<ng-container [ngSwitch]=\"activePanel$ | async\">\n    <text-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'textStyle'\"></text-controls-drawer>\n    <color-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'color'\" controlName=\"fill\" trans>Color</color-controls-drawer>\n    <shadow-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'shadow'\"></shadow-controls-drawer>\n    <outline-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'outline'\"></outline-controls-drawer>\n    <color-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'background'\" controlName=\"backgroundColor\" trans>Background Color</color-controls-drawer>\n    <texture-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'texture'\"></texture-controls-drawer>\n    <gradient-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'gradient'\"></gradient-controls-drawer>\n    <opacity-controls-drawer class=\"tool-panel-content\" *ngSwitchCase=\"'opacity'\"></opacity-controls-drawer>\n</ng-container>\n","import {ChangeDetectionStrategy, Component, OnDestroy, OnInit, ViewEncapsulation} from '@angular/core';\nimport {ActiveObjectService} from '../../../image-editor/canvas/active-object/active-object.service';\nimport {HistoryToolService} from '../../../image-editor/history/history-tool.service';\nimport {Select, Store} from '@ngxs/store';\nimport {Observable, Subscription} from 'rxjs';\nimport {MarkAsDirty, OpenObjectSettingsPanel} from '../../state/objects/objects.actions';\nimport {ObjectsState} from '../../state/objects/objects.state';\nimport {take} from 'rxjs/operators';\nimport {EditorState} from '../../../image-editor/state/editor-state';\nimport {ImportToolService} from '../../../image-editor/tools/import/import-tool.service';\nimport {Image} from 'fabric/fabric-impl';\nimport {CanvasService} from '../../../image-editor/canvas/canvas.service';\n\n@Component({\n    selector: 'object-settings-drawer',\n    templateUrl: './object-settings-drawer.component.html',\n    styleUrls: ['./object-settings-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class ObjectSettingsDrawerComponent implements OnInit, OnDestroy {\n    @Select(ObjectsState.activePanel) activePanel$: Observable<string>;\n    @Select(EditorState.activeObjIsText) activeObjIsText$: Observable<boolean>;\n    @Select(EditorState.activeObjIsSvg) activeObjIsSvg$: Observable<boolean>;\n    @Select(EditorState.activeObjIsImage) activeObjIsImage$: Observable<boolean>;\n    private subscription: Subscription;\n\n    constructor(\n        public activeObject: ActiveObjectService,\n        protected history: HistoryToolService,\n        protected store: Store,\n        protected importTool: ImportToolService,\n        protected canvas: CanvasService,\n    ) {}\n\n    ngOnInit() {\n        this.subscription = this.activeObject.propsChanged$\n            .pipe(take(1))\n            .subscribe(() => {\n                this.store.dispatch(new MarkAsDirty());\n            });\n    }\n\n    ngOnDestroy() {\n        this.subscription.unsubscribe();\n    }\n\n    public openPanel(name: string) {\n        this.store.dispatch(new OpenObjectSettingsPanel(name));\n    }\n\n    public replaceImage() {\n        this.importTool.importAndGetData().then(data => {\n            (this.activeObject.get() as Image).setSrc(data, () => {\n                this.canvas.render();\n            });\n        });\n    }\n}\n","<div class=\"tool-panel-content\">\n    <button class=\"button-with-image\" *ngFor=\"let item of items\" (click)=\"item.action($event)\">\n        <image-or-icon [src]=\"item.thumbnail\"></image-or-icon>\n        <span class=\"name bottom-label\" trans>{{item.name}}</span>\n    </button>\n</div>\n","import {ChangeDetectionStrategy, Component, OnInit, ViewEncapsulation} from '@angular/core';\nimport {Select, Store} from '@ngxs/store';\nimport {Observable} from 'rxjs';\nimport {EditorState} from '../../../../image-editor/state/editor-state';\nimport {DrawerName} from '../drawer-name.enum';\nimport {Settings} from '@common/core/config/settings.service';\n\n@Component({\n    selector: 'custom-drawer',\n    templateUrl: './custom-drawer.component.html',\n    styleUrls: ['./custom-drawer.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    host: {'class': 'controls-drawer'},\n})\nexport class CustomDrawerComponent {\n    @Select(EditorState.activePanel) panelName$: Observable<DrawerName>;\n    public items: {name: string, thumbnail: string, action: Function}[] = [];\n\n    constructor(\n        private config: Settings,\n        private store: Store\n    ) {\n        // const activePanel = this.store.selectSnapshot(EditorState.activePanel);\n        const activePanel = 'overlays';\n        this.items = this.config.get('pixie.ui.nav.customPanels', {})[activePanel];\n    }\n}\n","<ng-container *ngIf=\"activePanel$ | async as activePanel\">\n    <navigation-bar *ngIf=\"activePanel === 'navigation'\" @controlsAnimation></navigation-bar>\n\n    <div class=\"tool-panel-container\" [ngSwitch]=\"activePanel\" [class.hidden]=\"activePanel === 'navigation'\">\n        <button class=\"cancel-button\" mat-raised-button (click)=\"imageEditor.cancelChanges()\" trans>\n            <span trans *ngIf=\"dirty$ | async; else close\">Cancel</span>\n            <ng-template #close><span trans>Close</span></ng-template>\n        </button>\n\n        <div class=\"drawer-wrapper\" customScrollbar [suppressX]=\"false\">\n            <filter-drawer *ngSwitchCase=\"'filter'\" @controlsAnimation></filter-drawer>\n            <resize-drawer *ngSwitchCase=\"'resize'\" @controlsAnimation></resize-drawer>\n            <transform-drawer *ngSwitchCase=\"'transform'\" @controlsAnimation></transform-drawer>\n            <crop-drawer *ngSwitchCase=\"'crop'\" @controlsAnimation></crop-drawer>\n            <draw-drawer *ngSwitchCase=\"'draw'\" @controlsAnimation></draw-drawer>\n            <text-drawer *ngSwitchCase=\"'text'\" @controlsAnimation></text-drawer>\n            <shapes-drawer *ngSwitchCase=\"'shapes'\" @controlsAnimation></shapes-drawer>\n            <stickers-drawer *ngSwitchCase=\"'stickers'\" @controlsAnimation></stickers-drawer>\n            <round-drawer *ngSwitchCase=\"'corners'\" @controlsAnimation></round-drawer>\n            <frame-drawer *ngSwitchCase=\"'frame'\" @controlsAnimation></frame-drawer>\n            <canvas-background-drawer *ngSwitchCase=\"'background'\" @controlsAnimation></canvas-background-drawer>\n            <object-settings-drawer *ngSwitchCase=\"'objectSettings'\" @controlsAnimation></object-settings-drawer>\n            <custom-drawer *ngSwitchDefault @controlsAnimation></custom-drawer>\n        </div>\n\n        <button class=\"apply-button\" mat-raised-button color=\"accent\" (click)=\"imageEditor.applyChanges()\" [disabled]=\"!(dirty$ | async)\" trans>Apply</button>\n    </div>\n\n    <floating-object-controls [class.visible]=\"activeObjId$ | async\" [mobileMode]=\"compactMode$ | async\"></floating-object-controls>\n</ng-container>\n","import {ChangeDetectionStrategy, Component, ViewEncapsulation} from '@angular/core';\nimport {animate, style, transition, trigger} from '@angular/animations';\nimport {EditorControlsService} from './editor-controls.service';\nimport {ActiveObjectService} from '../../image-editor/canvas/active-object/active-object.service';\nimport {Select} from '@ngxs/store';\nimport {EditorState} from '../../image-editor/state/editor-state';\nimport {Observable} from 'rxjs';\nimport {BreakpointsService} from '@common/core/ui/breakpoints.service';\nimport {DrawerName} from './drawers/drawer-name.enum';\nimport {ImageEditorService} from '../../image-editor/image-editor.service';\nimport {map} from 'rxjs/operators';\n\n@Component({\n    selector: 'editor-controls',\n    templateUrl: './editor-controls.component.html',\n    styleUrls: ['./editor-controls.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    animations: [\n        trigger('controlsAnimation', [\n            transition(':enter', [\n                style({ opacity: 0}),\n                animate('225ms cubic-bezier(.4,0,.2,1)', style({ opacity: 1 })),\n            ]),\n            transition(':leave', [\n                animate('0ms cubic-bezier(.4,0,.2,1)', style({ opacity: 0 }))\n            ])\n        ]),\n    ]\n})\nexport class EditorControlsComponent {\n    @Select(EditorState.activePanel) activePanel$: Observable<DrawerName>;\n    @Select(EditorState.activeObjId) activeObjId$: Observable<string>;\n    @Select(EditorState.dirty) dirty$: Observable<boolean>;\n    public compactMode$: Observable<boolean>;\n\n    constructor(\n        public controls: EditorControlsService,\n        public activeObject: ActiveObjectService,\n        public breakpoints: BreakpointsService,\n        public imageEditor: ImageEditorService,\n    ) {\n        this.compactMode$ = this.breakpoints.observe('(max-width: 920px)')\n            .pipe(map(result => result.matches));\n    }\n}\n","<toolbar *ngIf=\"!(toolbarHidden$ | async)\"></toolbar>\r\n\r\n<editor-controls *ngIf=\"(navPosition$ | async) === 'top'\" class=\"position-top\"></editor-controls>\r\n\r\n<div class=\"canvas-wrapper\" #canvasWrapper backgroundImage=\"images/viewport-bg.png\" [fileDropzone]=\"dropzoneConfig\" [disableDropzoneClick]=\"true\" (filesDropped)=\"onFileDropped($event)\">\r\n    <div class=\"canvas-mask-wrapper\" #canvasMaskWrapper>\r\n        <div class=\"bg-wrapper\" backgroundImage=\"images/canvas-bg.png\" [@fadeInCanvas]=\"loadState.canvasVisible\">\r\n            <canvas id=\"pixie-canvas\"></canvas>\r\n        </div>\r\n        <div class=\"image-loading-message\" [@imageLoadingAnimation] *ngIf=\"loadState.messageVisible\">{{loadState.message}}...</div>\r\n    </div>\r\n</div>\r\n\r\n<editor-controls *ngIf=\"(navPosition$ | async) === 'bottom'\" class=\"position-bottom\"></editor-controls>\r\n","import {\n    AfterViewInit,\n    ChangeDetectionStrategy,\n    ChangeDetectorRef,\n    Component,\n    ElementRef,\n    HostBinding,\n    ViewChild,\n    ViewEncapsulation\n} from '@angular/core';\nimport {CanvasService} from '../image-editor/canvas/canvas.service';\nimport {HistoryToolService} from '../image-editor/history/history-tool.service';\nimport {fromEvent, interval, Observable} from 'rxjs';\nimport {\n    debounceTime,\n    delayWhen,\n    distinctUntilChanged,\n    filter,\n    map,\n    pairwise,\n    startWith,\n    take\n} from 'rxjs/operators';\nimport {EditorControlsService} from './toolbar-controls/editor-controls.service';\nimport {FloatingPanelsService} from './toolbar-controls/floating-panels.service';\nimport {CanvasKeybindsService} from '../image-editor/canvas/canvas-keybinds.service';\nimport {ActiveObjectService} from '../image-editor/canvas/active-object/active-object.service';\nimport {Settings} from '@common/core/config/settings.service';\nimport {Select, Store} from '@ngxs/store';\nimport {\n    ObjectDeselected,\n    ObjectSelected,\n    OpenPanel\n} from '../image-editor/state/editor-state-actions';\nimport {EditorState} from '../image-editor/state/editor-state';\nimport {NavPosition} from '../image-editor/enums/control-positions.enum';\nimport {DrawerName} from './toolbar-controls/drawers/drawer-name.enum';\nimport {BreakpointsService} from '@common/core/ui/breakpoints.service';\nimport {Localization} from '@common/core/types/models/Localization';\nimport {Translations} from '@common/core/translations/translations.service';\nimport {EditorMode} from '../image-editor/enums/editor-mode.enum';\nimport {UploadedFile} from '@common/uploads/uploaded-file';\nimport {UploadInputTypes} from '@common/uploads/upload-input-config';\nimport {ImportToolService} from '../image-editor/tools/import/import-tool.service';\nimport {fabric} from 'fabric';\nimport {normalizeObjectProps} from '../image-editor/utils/normalize-object-props';\nimport {randomString} from '@common/core/utils/random-string';\nimport {CanvasZoomService} from '../image-editor/canvas/canvas-zoom.service';\nimport {CanvasPanService} from '../image-editor/canvas/canvas-pan.service';\nimport {ImageEditorService} from '../image-editor/image-editor.service';\nimport {animate, state, style, transition, trigger} from '@angular/animations';\nimport {\n    ContentLoadingState,\n    ContentLoadingStateDisplayName\n} from '../image-editor/canvas/canvas-state.service';\n\n@Component({\n    selector: 'image-editor',\n    templateUrl: './image-editor.component.html',\n    styleUrls: ['./image-editor.component.scss'],\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    encapsulation: ViewEncapsulation.None,\n    animations: [\n        trigger('imageLoadingAnimation', [\n            transition(':enter', [\n                style({transform: 'translateY(60%)'}),\n                animate('325ms cubic-bezier(.4,0,.2,1)', style({ opacity: 1, transform: 'translateY(0%)' })),\n            ]),\n            transition(':leave', [\n                animate('325ms cubic-bezier(.4,0,.2,1)', style({ opacity: 0, transform: 'translateY(-60%)' }))\n            ])\n        ]),\n        trigger('fadeInCanvas', [\n            state('true', style({opacity: 1, boxShadow: '*'})),\n            state('false', style({opacity: 0, boxShadow: 'none'})),\n            transition('* => true', animate('325ms ease-in')),\n        ])\n    ]\n})\nexport class ImageEditorComponent implements AfterViewInit {\n    @Select(EditorState.navPosition) navPosition$: Observable<NavPosition>;\n    @Select(EditorState.toolbarHidden) toolbarHidden$: Observable<boolean>;\n    @ViewChild('canvasWrapper') canvasWrapper: ElementRef;\n    @ViewChild('canvasMaskWrapper') canvasMaskWrapper: ElementRef;\n\n    @HostBinding('class.nav-hidden') get navHidden() {\n        return this.store.selectSnapshot(EditorState.navPosition) === NavPosition.NONE;\n    }\n\n    public dropzoneConfig = {types: [UploadInputTypes.image]};\n    public loadState = {canvasVisible: false, messageVisible: false, message: null};\n\n    constructor(\n        public canvas: CanvasService,\n        private history: HistoryToolService,\n        public controls: EditorControlsService,\n        public breakpoints: BreakpointsService,\n        private floatingPanels: FloatingPanelsService,\n        private canvasKeybinds: CanvasKeybindsService,\n        private el: ElementRef<HTMLElement>,\n        private activeObject: ActiveObjectService,\n        public config: Settings,\n        private store: Store,\n        private i18n: Translations,\n        private importTool: ImportToolService,\n        private zoom: CanvasZoomService,\n        private pan: CanvasPanService,\n        private imageEditor: ImageEditorService,\n        private cd: ChangeDetectorRef,\n    ) {}\n\n    ngAfterViewInit() {\n        this.canvas.state.wrapperEl = this.canvasWrapper.nativeElement;\n        this.canvas.state.maskWrapperEl = this.canvasMaskWrapper.nativeElement;\n\n        // update editor language on settings change\n        this.config.all$()\n            .pipe(\n                map(config => config.pixie.languages.active),\n                distinctUntilChanged(),\n            ).subscribe(() => {\n                this.setLocalization();\n            });\n\n        this.bindToLoadingState();\n\n        this.initFabric().then(() => {\n            this.activeObject.init();\n            this.canvasKeybinds.init();\n            this.fitCanvasToScreenOnResize();\n            this.openObjectSettingsOnDoubleClick();\n            this.closePanelsOnObjectDelete();\n            this.handleObjectSelection();\n            this.updateHistoryOnObjectModification();\n            this.bindToClickOutsideCanvas();\n            this.ignoreMobileKeyboard();\n            this.canvasMaskWrapper.nativeElement.classList.remove('not-loaded');\n        });\n    }\n\n    private initFabric(): Promise<any> {\n        const canvasEl = document.querySelector('#pixie-canvas') as HTMLCanvasElement;\n        this.canvas.state.fabric = new fabric.Canvas(canvasEl);\n\n        this.canvas.state.fabric.selection = false;\n        this.canvas.state.fabric.renderOnAddRemove = false;\n\n        const textureSize = this.config.get('pixie.textureSize');\n        if (textureSize) fabric['textureSize'] = textureSize;\n\n        const objectDefaults = normalizeObjectProps(\n            this.config.get('pixie.objectDefaults.global')\n        );\n\n        for (const key in objectDefaults) {\n            fabric.Object.prototype[key] = objectDefaults[key];\n        }\n\n        // add ID to all objects\n        this.canvas.state.fabric.on('object:added', e => {\n            if (e.target.data && e.target.data.id) return;\n            if ( ! e.target.data) e.target.data = {};\n            e.target.data.id = randomString(10);\n        });\n\n        this.pan.init();\n        this.zoom.init();\n\n        return this.imageEditor.loadInitialContent();\n    }\n\n    private closePanelsOnObjectDelete() {\n        this.canvas.fabric().on('object:delete', () => this.controls.closeCurrentPanel());\n    }\n\n    private openObjectSettingsOnDoubleClick() {\n        this.canvas.fabric().on('mouse:dblclick', () => {\n            if (!this.activeObject.getId() || this.store.selectSnapshot(EditorState.dirty)) return;\n            this.store.dispatch(new OpenPanel(DrawerName.OBJECT_SETTINGS));\n        });\n    }\n\n    /**\n     * Replace current history item, so object position is\n     * updated after object is scaled, moved or rotated.\n     */\n    private updateHistoryOnObjectModification() {\n        this.canvas.fabric().on('object:modified', event => {\n            if (!event.e || this.store.selectSnapshot(EditorState.dirty)) return;\n            this.history.replaceCurrent();\n        });\n    }\n\n    private handleObjectSelection() {\n        this.canvas.fabric().on('selection:created', e => this.onObjectSelection(e));\n        this.canvas.fabric().on('selection:updated', e => this.onObjectSelection(e));\n\n        this.canvas.fabric().on('selection:cleared', fabricEvent => {\n            this.store.dispatch(new ObjectDeselected(fabricEvent.e != null));\n        });\n    }\n\n    public onObjectSelection(fabricEvent) {\n        this.store.dispatch(new ObjectSelected(\n            fabricEvent.target.name, fabricEvent.e != null\n        ));\n    }\n\n    private fitCanvasToScreenOnResize() {\n        fromEvent(window, 'resize')\n            .pipe(debounceTime(200), distinctUntilChanged())\n            .subscribe(() => {\n                this.canvas.zoom.fitToScreen();\n            });\n    }\n\n    private setLocalization() {\n        const active = this.config.get('pixie.languages.active', 'default');\n        if (active === 'default') return;\n\n        if ( ! this.config.get('i18n.enable')) {\n            this.config.set('i18n.enable', true);\n        }\n\n        const lines = this.config.get(`pixie.languages.custom.${active}`);\n        this.i18n.setLocalization({\n            name: active,\n            model: new Localization({name: active}),\n            lines: lines,\n        });\n    }\n\n    private bindToClickOutsideCanvas() {\n        this.canvas.state.wrapperEl.addEventListener('click', e => {\n            // deselect active object when user clicks outside canvas\n            if ((e.target as HTMLElement).nodeName.toLowerCase() !== 'canvas') {\n                this.activeObject.deselect();\n            }\n        });\n    }\n\n    private ignoreMobileKeyboard() {\n        if (this.config.get('pixie.ui.ignoreMobileKeyboard')) {\n            this.breakpoints.isMobile$.pipe(filter(result => !!result), take(1))\n                .subscribe(() => {\n                    let minHeight = this.el.nativeElement.offsetHeight;\n                    if (this.config.get('pixie.ui.mode') === EditorMode.OVERLAY) {\n                        minHeight -= 40; // overlay mode gutter\n                    }\n                    this.el.nativeElement.style.minHeight = minHeight + 'px';\n                });\n        }\n    }\n\n    public onFileDropped(files: UploadedFile[]) {\n        const openAsBackground = this.config.get('pixie.tools.import.openDroppedImageAsBackground');\n        this.importTool.loadFile(files[0], {openAsBackground}).then(image => {\n            image && this.activeObject.select(image);\n        });\n    }\n\n    private bindToLoadingState() {\n        // delay loading emits by 500 ms so loading message is shown for at least 500ms\n        this.canvas.state.contentLoadingState$.pipe(\n            startWith({}),\n            map((value: ContentLoadingState & {date: number}) => {\n                value.date = Date.now();\n                return value;\n            }),\n            pairwise(),\n            delayWhen(([previousValue, currentValue]) => {\n                const ms = currentValue.date - previousValue.date,\n                    delay = 500 - ms || 0;\n                return currentValue.name === 'overlayImage' || (!currentValue.loading && currentValue.name !== 'blank') ? interval(delay) : interval(0);\n            })\n        ).subscribe(values => {\n            const s = values[1];\n            this.loadState = {\n                // keep canvas visible if loading overlay image\n                canvasVisible: s.name === 'overlayImage' || !s.loading,\n                // don't show loading message when creating blank canvas\n                messageVisible: s.name !== 'blank' && s.loading,\n                message: ContentLoadingStateDisplayName[s.name],\n            };\n            this.cd.markForCheck();\n        });\n    }\n}\n","import {NgModule} from '@angular/core';\r\nimport {TranslateDirective} from './translate.directive';\r\nimport { TransPipe } from './translate.pipe';\r\n\r\n@NgModule({\r\n    declarations: [\r\n        TranslateDirective,\r\n        TransPipe,\r\n    ],\r\n    exports: [\r\n        TranslateDirective,\r\n        TransPipe,\r\n    ],\r\n})\r\nexport class TranslationsModule {}\r\n","import {Injectable} from '@angular/core';\r\nimport {Toast} from '../../ui/toast.service';\r\nimport {Translations} from '../../translations/translations.service';\r\nimport {HttpErrorHandler} from './http-error-handler.service';\r\n\r\n@Injectable({\r\n    providedIn: 'root'\r\n})\r\nexport class ClientHttpErrorHandler extends HttpErrorHandler {\r\n    constructor(protected i18n: Translations, protected toast: Toast) {\r\n        super(i18n, toast);\r\n    }\r\n\r\n    /**\r\n     *  403 errors won't happen in client only apps,\r\n     *  so we can stub this method.\r\n     */\r\n    protected handle403Error(response: object) {}\r\n}\r\n","import {\n    ChangeDetectionStrategy,\n    Component,\n    ElementRef,\n    HostBinding, HostListener,\n    OnInit,\n    ViewChild,\n    ViewEncapsulation\n} from '@angular/core';\nimport {animate, state, style, transition, trigger} from '@angular/animations';\nimport {Store} from '@ngxs/store';\nimport {EditorState} from './image-editor/state/editor-state';\nimport {EditorMode} from './image-editor/enums/editor-mode.enum';\nimport {CloseEditor} from './image-editor/state/editor-state-actions';\nimport {Settings} from '@common/core/config/settings.service';\n\n@Component({\n    selector: 'pixie-editor',\n    templateUrl: './app.component.html',\n    styleUrls: ['./app.component.scss'],\n    encapsulation: ViewEncapsulation.None,\n    changeDetection: ChangeDetectionStrategy.OnPush,\n    animations: [\n        trigger('editorVisible', [\n            state('true', style({\n                opacity: '*',\n            })),\n            state('false', style({\n                opacity: '0',\n            })),\n            transition('true <=> false', animate('325ms cubic-bezier(.4,0,.2,1)'))\n        ]),\n    ]\n})\nexport class AppComponent implements OnInit {\n    @ViewChild('overlay', {static: true}) overlay: ElementRef;\n\n    // https://github.com/angular/angular/issues/29371\n    @HostBinding('@editorVisible') get editorVisible() {\n        return this.store.selectSnapshot(EditorState.visible);\n    }\n\n    @HostBinding('class.mode-overlay') get overlayMode() {\n        return this.store.selectSnapshot(EditorState.mode) === EditorMode.OVERLAY;\n    }\n\n    @HostBinding('class.mode-inline') get inlineMode() {\n        return this.store.selectSnapshot(EditorState.mode) === EditorMode.INLINE;\n    }\n\n    @HostBinding('style.width') get width() {\n        return this.config.get('pixie.ui.width');\n    }\n\n    @HostBinding('style.height') get height() {\n        return this.config.get('pixie.ui.height');\n    }\n\n    @HostBinding('class.ui-compact') get compact() {\n        return this.config.get('pixie.ui.compact');\n    }\n\n    constructor(\n        private store: Store,\n        private config: Settings,\n        private el: ElementRef<HTMLElement>,\n    ) {}\n\n    ngOnInit() {\n        this.bindToOverlayClick(this.overlay);\n    }\n\n    private bindToOverlayClick(overlay: ElementRef) {\n        overlay.nativeElement.addEventListener('click', () => {\n            this.store.dispatch(new CloseEditor());\n        });\n    }\n\n    @HostListener('@editorVisible.start')\n    private onAnimationStart() {\n        this.el.nativeElement.style.display = 'block';\n    }\n\n    @HostListener('@editorVisible.done')\n    private onAnimationEnd() {\n        this.el.nativeElement.style.display = this.editorVisible ? 'block' : 'none';\n    }\n}\n","<image-editor></image-editor>\r\n\r\n<div class=\"overlay\" #overlay></div>\r\n\r\n<div class=\"loader\">\r\n    <ng-content></ng-content>\r\n</div>\r\n","import {APP_INITIALIZER, NgModule} from '@angular/core';\r\nimport {CommonModule} from '@angular/common';\r\nimport {Settings} from 'common/core/config/settings.service';\r\nimport {CanvasService} from './canvas/canvas.service';\r\nimport {FilterToolService} from './tools/filter/filter-tool.service';\r\nimport {ResizeToolService} from './tools/resize/resize-tool.service';\r\nimport {TransformToolService} from './tools/transform/transform-tool.service';\r\nimport {HistoryToolService} from './history/history-tool.service';\r\nimport {CropZoneService} from './tools/crop/crop-zone.service';\r\nimport {CropToolService} from './tools/crop/crop-tool.service';\r\nimport {DrawToolService} from './tools/draw/draw-tool.service';\r\nimport {TextToolService} from './tools/text/text-tool.service';\r\nimport {ShapesToolService} from './tools/shapes/shapes-tool.service';\r\nimport {CanvasPanService} from './canvas/canvas-pan.service';\r\nimport {ActiveObjectService} from './canvas/active-object/active-object.service';\r\nimport {CanvasZoomService} from './canvas/canvas-zoom.service';\r\nimport {HttpErrorHandler} from 'common/core/http/errors/http-error-handler.service';\r\nimport {ClientHttpErrorHandler} from 'common/core/http/errors/client-http-error-handler.service';\r\nimport {ExportToolService} from './tools/export/export-tool.service';\r\nimport {FillToolService} from './tools/fill/fill-tool.service';\r\nimport {CanvasKeybindsService} from './canvas/canvas-keybinds.service';\r\nimport {MergeToolService} from './tools/merge/merge-tool.service';\r\nimport {RoundToolService} from './tools/round/round-tool.service';\r\nimport {ObjectListService} from './objects/object-list.service';\r\nimport {WatermarkToolService} from './tools/watermark-tool.service';\r\nimport {FrameToolService} from './tools/frame/frame-tool.service';\r\nimport {FramePatternsService} from './tools/frame/frame-patterns.service';\r\nimport {ActiveFrameService} from './tools/frame/active-frame.service';\r\nimport {FrameBuilderService} from './tools/frame/frame-builder.service';\r\nimport {ToolsService} from './tools/tools.service';\r\nimport {CanvasStateService} from './canvas/canvas-state.service';\r\nimport {TranslationsModule} from 'common/core/translations/translations.module';\r\nimport {ImportToolService} from './tools/import/import-tool.service';\r\nimport {MERGED_CONFIG, PIXIE_VERSION} from './default-settings';\r\nimport {environment} from '../../environments/environment';\r\nimport {NgxsModule} from '@ngxs/store';\r\nimport {EditorState} from './state/editor-state';\r\nimport {FilterState} from '../image-editor-ui/state/filter/filter.state';\r\nimport {ResizeState} from '../image-editor-ui/state/resize/resize.state';\r\nimport {CropState} from '../image-editor-ui/state/crop/crop.state';\r\nimport {TransformState} from '../image-editor-ui/state/transform/transform.state';\r\nimport {DrawState} from '../image-editor-ui/state/draw/draw.state';\r\nimport {ShapesState} from '../image-editor-ui/state/shapes/shapes.state';\r\nimport {StickersState} from '../image-editor-ui/state/stickers/stickers.state';\r\nimport {ObjectsState} from '../image-editor-ui/state/objects/objects.state';\r\nimport {TextState} from '../image-editor-ui/state/text/text.state';\r\nimport {FrameState} from '../image-editor-ui/state/frame/frame.state';\r\nimport {CornersState} from '../image-editor-ui/state/corners/corners.state';\r\nimport {BackgroundState} from '../image-editor-ui/state/background/background.state';\r\nimport {HistoryState} from '../image-editor-ui/state/history/history.state';\r\n\r\nexport function init_app(settings, mergedConfig) {\r\n    return () => {\r\n        const baseConfig = {\r\n            base_url: mergedConfig.baseUrl,\r\n            version: PIXIE_VERSION,\r\n            logging: {\r\n                sentry_public: mergedConfig.sentry_public,\r\n            },\r\n            vebto: {\r\n                environment: environment.production ? 'production' : 'dev',\r\n            },\r\n            themes: {\r\n                default_mode: mergedConfig.ui.defaultTheme\r\n            }\r\n        };\r\n\r\n        settings.setMultiple({...baseConfig, pixie: mergedConfig});\r\n\r\n        return new Promise(resolve => resolve());\r\n    };\r\n}\r\n\r\n@NgModule({\r\n    imports: [\r\n        CommonModule,\r\n        TranslationsModule,\r\n        NgxsModule.forRoot([\r\n            EditorState,\r\n            FilterState,\r\n            ResizeState,\r\n            CropState,\r\n            TransformState,\r\n            DrawState,\r\n            ShapesState,\r\n            StickersState,\r\n            ObjectsState,\r\n            TextState,\r\n            FrameState,\r\n            CornersState,\r\n            BackgroundState,\r\n            HistoryState,\r\n        ], {developmentMode: false}),\r\n    ],\r\n    exports: [\r\n        TranslationsModule,\r\n    ],\r\n    providers: [\r\n        {\r\n            provide: APP_INITIALIZER,\r\n            useFactory: init_app,\r\n            deps: [Settings, MERGED_CONFIG],\r\n            multi: true,\r\n        },\r\n        Settings,\r\n        {\r\n            provide: HttpErrorHandler,\r\n            useClass: ClientHttpErrorHandler,\r\n        },\r\n        CanvasService,\r\n        CanvasPanService,\r\n        CanvasZoomService,\r\n        CanvasStateService,\r\n        CanvasKeybindsService,\r\n        ObjectListService,\r\n        ActiveObjectService,\r\n        FilterToolService,\r\n        ResizeToolService,\r\n        HistoryToolService,\r\n        TransformToolService,\r\n        CropZoneService,\r\n        CropToolService,\r\n        DrawToolService,\r\n        TextToolService,\r\n        ShapesToolService,\r\n        ExportToolService,\r\n        ImportToolService,\r\n        FillToolService,\r\n        MergeToolService,\r\n        RoundToolService,\r\n        WatermarkToolService,\r\n        FrameToolService,\r\n        FramePatternsService,\r\n        ActiveFrameService,\r\n        FrameBuilderService,\r\n        ToolsService,\r\n    ],\r\n})\r\nexport class ImageEditorModule {\r\n}\r\n","import {OverlayContainer} from '@angular/cdk/overlay';\r\nimport {Injectable} from '@angular/core';\r\n\r\n@Injectable()\r\nexport class EditorOverlayContainer extends OverlayContainer {\r\n    _createContainer(): void {\r\n        const container = document.createElement('div');\r\n        container.classList.add('editor-overlay-container', 'cdk-overlay-container');\r\n        document.querySelector('image-editor').appendChild(container);\r\n        this._containerElement = container;\r\n    }\r\n}\r\n","import {NgModule} from '@angular/core';\r\nimport {CommonModule} from '@angular/common';\r\nimport {FormsModule, ReactiveFormsModule} from '@angular/forms';\r\nimport {GoogleFontsModule} from './widgets/google-fonts-panel/google-fonts.module';\r\nimport {CustomScrollbarModule} from 'common/core/ui/custom-scrollbar/custom-scrollbar.module';\r\nimport {HttpModule} from 'common/core/http/http.module';\r\nimport {EditorControlsComponent} from './editor-controls.component';\r\nimport {FilterDrawerComponent} from './drawers/filter-drawer/filter-drawer.component';\r\nimport {ResizeDrawerComponent} from './drawers/resize-drawer/resize-drawer.component';\r\nimport {CropDrawerComponent} from './drawers/crop-drawer/crop-drawer.component';\r\nimport {TransformDrawerComponent} from './drawers/transform-drawer/transform-drawer.component';\r\nimport {DrawDrawerComponent} from './drawers/draw-drawer/draw-drawer.component';\r\nimport {TextDrawerComponent} from './drawers/text-drawer/text-drawer.component';\r\nimport {ColorWidgetComponent} from './widgets/color-widget/color-widget.component';\r\nimport {ShapesDrawerComponent} from './drawers/shapes-drawer/shapes-drawer.component';\r\nimport {TextControlsDrawerComponent} from './drawers/text-controls-drawer/text-controls-drawer.component';\r\nimport {ObjectSettingsDrawerComponent} from './object-settings/object-settings-drawer.component';\r\nimport {StickersDrawerComponent} from './drawers/stickers-drawer/stickers-drawer.component';\r\nimport {ShadowControlsDrawer} from './shadow-controls-drawer/shadow-controls-drawer.component';\r\nimport {NavigationBarComponent} from './navigation-bar/navigation-bar.component';\r\nimport {ToolbarComponent} from './toolbar/toolbar.component';\r\nimport {ColorControlsDrawerComponent} from './color-controls-drawer/color-controls-drawer.component';\r\nimport {TextureControlsDrawerComponent} from './drawers/texture-controls-drawer/texture-controls-drawer.component';\r\nimport {OutlineControlsDrawerComponent} from './outline-controls-drawer/outline-controls-drawer.component';\r\nimport {GradientControlsDrawerComponent} from './drawers/gradient-controls-drawer/gradient-controls-drawer.component';\r\nimport {FilterControlsComponent} from './drawers/filter-controls/filter-controls.component';\r\nimport {RoundDrawerComponent} from './drawers/round-drawer/round-drawer.component';\r\nimport {FrameDrawerComponent} from './drawers/frame-drawer/frame-drawer.component';\r\nimport {Toast} from 'common/core/ui/toast.service';\r\nimport {MatButtonModule} from '@angular/material/button';\r\nimport {MatButtonToggleModule} from '@angular/material/button-toggle';\r\nimport {MatCheckboxModule} from '@angular/material/checkbox';\r\nimport {MatIconModule} from '@angular/material/icon';\r\nimport {MatMenuModule} from '@angular/material/menu';\r\nimport {MatRadioModule} from '@angular/material/radio';\r\nimport {MatSlideToggleModule} from '@angular/material/slide-toggle';\r\nimport {MatSliderModule} from '@angular/material/slider';\r\nimport {MatSnackBarModule} from '@angular/material/snack-bar';\r\nimport {MatTooltipModule} from '@angular/material/tooltip';\r\nimport {CanvasBackgroundDrawerComponent} from './drawers/canvas-background-drawer/canvas-background-drawer.component';\r\nimport {FloatingObjectControlsComponent} from '../floating-object-controls/floating-object-controls.component';\r\nimport {ImageEditorModule} from '../../image-editor/image-editor.module';\r\nimport {OpacityControlsDrawer} from './drawers/opacity-controls-drawer/opacity-controls-drawer.component';\r\nimport {TextFontSelectorComponent} from './widgets/text-font-selector/text-font-selector.component';\r\nimport {ImageOrIconModule} from '@common/core/ui/image-or-icon/image-or-icon.module';\r\nimport {CustomDrawerComponent} from './drawers/custom-drawer/custom-drawer.component';\r\nimport {BeColorPickerModule} from '@common/core/ui/color-picker/be-color-picker.module';\nimport { ToolbarZoomWidgetComponent } from './toolbar/toolbar-zoom-widget/toolbar-zoom-widget.component';\nimport { ToolbarItemComponent } from './toolbar/toolbar-item/toolbar-item.component';\nimport { ToolbarUndoWidgetComponent } from './toolbar/toolbar-undo-widget/toolbar-undo-widget.component';\nimport { ToolbarPanelNameWidgetComponent } from './toolbar/toolbar-panel-name-widget/toolbar-panel-name-widget.component';\r\n\r\n@NgModule({\r\n    imports: [\r\n        CommonModule,\r\n        FormsModule,\r\n        ReactiveFormsModule,\r\n        GoogleFontsModule,\r\n        CustomScrollbarModule,\r\n        HttpModule,\r\n        ImageEditorModule,\r\n        ImageOrIconModule,\r\n        BeColorPickerModule,\r\n\r\n        // material\r\n        MatSliderModule,\r\n        MatButtonModule,\r\n        MatCheckboxModule,\r\n        MatIconModule,\r\n        MatSlideToggleModule,\r\n        MatSnackBarModule,\r\n        MatRadioModule,\r\n        MatMenuModule,\r\n        MatButtonToggleModule,\r\n        MatTooltipModule,\r\n    ],\r\n    declarations: [\r\n        EditorControlsComponent,\r\n        FilterDrawerComponent,\r\n        ResizeDrawerComponent,\r\n        TransformDrawerComponent,\r\n        CropDrawerComponent,\r\n        DrawDrawerComponent,\r\n        TextDrawerComponent,\r\n        ColorWidgetComponent,\r\n        TextControlsDrawerComponent,\r\n        ShapesDrawerComponent,\r\n        StickersDrawerComponent,\r\n        ObjectSettingsDrawerComponent,\r\n        ShadowControlsDrawer,\r\n        OpacityControlsDrawer,\r\n        NavigationBarComponent,\r\n        ToolbarComponent,\r\n        ColorControlsDrawerComponent,\r\n        OutlineControlsDrawerComponent,\r\n        TextureControlsDrawerComponent,\r\n        GradientControlsDrawerComponent,\r\n        FilterControlsComponent,\r\n        RoundDrawerComponent,\r\n        FrameDrawerComponent,\r\n        CanvasBackgroundDrawerComponent,\r\n        FloatingObjectControlsComponent,\r\n        TextFontSelectorComponent,\r\n        CustomDrawerComponent,\r\n        ToolbarZoomWidgetComponent,\r\n        ToolbarItemComponent,\r\n        ToolbarUndoWidgetComponent,\r\n        ToolbarPanelNameWidgetComponent,\r\n    ],\r\n    exports: [\r\n        EditorControlsComponent,\r\n        FilterDrawerComponent,\r\n        ResizeDrawerComponent,\r\n        TransformDrawerComponent,\r\n        CropDrawerComponent,\r\n        DrawDrawerComponent,\r\n        TextDrawerComponent,\r\n        ColorWidgetComponent,\r\n        TextControlsDrawerComponent,\r\n        ShapesDrawerComponent,\r\n        StickersDrawerComponent,\r\n        ObjectSettingsDrawerComponent,\r\n        ShadowControlsDrawer,\r\n        NavigationBarComponent,\r\n        ToolbarComponent,\r\n        ColorControlsDrawerComponent,\r\n        OutlineControlsDrawerComponent,\r\n        TextureControlsDrawerComponent,\r\n        GradientControlsDrawerComponent,\r\n        FilterControlsComponent,\r\n        RoundDrawerComponent,\r\n        FrameDrawerComponent,\r\n        CanvasBackgroundDrawerComponent,\r\n        FloatingObjectControlsComponent,\r\n    ],\r\n    providers: [\r\n        Toast,\r\n    ],\r\n})\r\nexport class ToolbarControlsModule {\r\n}\r\n","import {NgModule} from '@angular/core';\r\nimport {ColorpickerPanelComponent} from './colorpicker-panel.component';\r\nimport {ColorPickerModule} from 'ngx-color-picker';\r\nimport {OverlayModule} from '@angular/cdk/overlay';\r\nimport {MatIconModule} from '@angular/material/icon';\r\nimport {TranslationsModule} from '@common/core/translations/translations.module';\r\nimport {CommonModule} from '@angular/common';\r\n\r\n@NgModule({\r\n    imports: [\r\n        CommonModule,\r\n        ColorPickerModule,\r\n        OverlayModule,\r\n        TranslationsModule,\r\n\r\n        // material\r\n        MatIconModule,\r\n    ],\r\n    declarations: [\r\n        ColorpickerPanelComponent,\r\n    ],\r\n    exports: [\r\n        ColorpickerPanelComponent,\r\n    ],\r\n})\r\nexport class BeColorPickerModule {\r\n    static components = {\r\n        panel: ColorpickerPanelComponent,\r\n    };\r\n}\r\n","import {NgModule} from '@angular/core';\nimport {CommonModule} from '@angular/common';\nimport {ImageOrIconComponent} from '@common/core/ui/image-or-icon/image-or-icon.component';\nimport { MatIconModule } from '@angular/material/icon';\n\n\n@NgModule({\n    declarations: [\n        ImageOrIconComponent,\n    ],\n    imports: [\n        CommonModule,\n        MatIconModule,\n    ],\n    exports: [\n        ImageOrIconComponent\n    ]\n})\nexport class ImageOrIconModule {\n}\n","import { ObserversModule } from '@angular/cdk/observers';\nimport { InjectionToken, forwardRef, EventEmitter, Component, ViewEncapsulation, ChangeDetectionStrategy, ElementRef, ChangeDetectorRef, Attribute, NgZone, Inject, Optional, ViewChild, Input, Output, Directive, NgModule } from '@angular/core';\nimport { mixinTabIndex, mixinColor, mixinDisableRipple, mixinDisabled, MatRippleModule, MatCommonModule } from '@angular/material/core';\nimport { FocusMonitor } from '@angular/cdk/a11y';\nimport { Directionality } from '@angular/cdk/bidi';\nimport { coerceBooleanProperty } from '@angular/cdk/coercion';\nimport { NG_VALUE_ACCESSOR, NG_VALIDATORS, CheckboxRequiredValidator } from '@angular/forms';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slide-toggle/slide-toggle-config.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Default `mat-slide-toggle` options that can be overridden.\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/cdk/a11y';\nimport * as ɵngcc2 from '@angular/cdk/bidi';\nimport * as ɵngcc3 from '@angular/material/core';\nimport * as ɵngcc4 from '@angular/cdk/observers';\n\nconst _c0 = [\"thumbContainer\"];\nconst _c1 = [\"toggleBar\"];\nconst _c2 = [\"input\"];\nconst _c3 = function () { return { enterDuration: 150 }; };\nconst _c4 = [\"*\"];\nfunction MatSlideToggleDefaultOptions() { }\nif (false) {\n    /**\n     * Whether toggle action triggers value changes in slide toggle.\n     * @type {?|undefined}\n     */\n    MatSlideToggleDefaultOptions.prototype.disableToggleValue;\n    /**\n     * Whether drag action triggers value changes in slide toggle.\n     * @deprecated No longer being used.\n     * \\@breaking-change 10.0.0\n     * @type {?|undefined}\n     */\n    MatSlideToggleDefaultOptions.prototype.disableDragValue;\n}\n/**\n * Injection token to be used to override the default options for `mat-slide-toggle`.\n * @type {?}\n */\nconst MAT_SLIDE_TOGGLE_DEFAULT_OPTIONS = new InjectionToken('mat-slide-toggle-default-options', {\n    providedIn: 'root',\n    factory: (/**\n     * @return {?}\n     */\n    () => ({ disableToggleValue: false }))\n});\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slide-toggle/slide-toggle.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n// Increasing integer for generating unique ids for slide-toggle components.\n/** @type {?} */\nlet nextUniqueId = 0;\n/**\n * \\@docs-private\n * @type {?}\n */\nconst MAT_SLIDE_TOGGLE_VALUE_ACCESSOR = {\n    provide: NG_VALUE_ACCESSOR,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MatSlideToggle)),\n    multi: true\n};\n/**\n * Change event object emitted by a MatSlideToggle.\n */\nclass MatSlideToggleChange {\n    /**\n     * @param {?} source\n     * @param {?} checked\n     */\n    constructor(source, checked) {\n        this.source = source;\n        this.checked = checked;\n    }\n}\nif (false) {\n    /**\n     * The source MatSlideToggle of the event.\n     * @type {?}\n     */\n    MatSlideToggleChange.prototype.source;\n    /**\n     * The new `checked` value of the MatSlideToggle.\n     * @type {?}\n     */\n    MatSlideToggleChange.prototype.checked;\n}\n// Boilerplate for applying mixins to MatSlideToggle.\n/**\n * \\@docs-private\n */\nclass MatSlideToggleBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatSlideToggleBase.prototype._elementRef;\n}\n/** @type {?} */\nconst _MatSlideToggleMixinBase = mixinTabIndex(mixinColor(mixinDisableRipple(mixinDisabled(MatSlideToggleBase)), 'accent'));\n/**\n * Represents a slidable \"switch\" toggle that can be moved between on and off.\n */\nclass MatSlideToggle extends _MatSlideToggleMixinBase {\n    /**\n     * @param {?} elementRef\n     * @param {?} _focusMonitor\n     * @param {?} _changeDetectorRef\n     * @param {?} tabIndex\n     * @param {?} _ngZone\n     * @param {?} defaults\n     * @param {?=} _animationMode\n     * @param {?=} _dir\n     */\n    constructor(elementRef, _focusMonitor, _changeDetectorRef, tabIndex, \n    /**\n     * @deprecated `_ngZone` and `_dir` parameters to be removed.\n     * @breaking-change 10.0.0\n     */\n    _ngZone, defaults, _animationMode, _dir) {\n        super(elementRef);\n        this._focusMonitor = _focusMonitor;\n        this._changeDetectorRef = _changeDetectorRef;\n        this.defaults = defaults;\n        this._animationMode = _animationMode;\n        this._onChange = (/**\n         * @param {?} _\n         * @return {?}\n         */\n        (_) => { });\n        this._onTouched = (/**\n         * @return {?}\n         */\n        () => { });\n        this._uniqueId = `mat-slide-toggle-${++nextUniqueId}`;\n        this._required = false;\n        this._checked = false;\n        /**\n         * Name value will be applied to the input element if present.\n         */\n        this.name = null;\n        /**\n         * A unique id for the slide-toggle input. If none is supplied, it will be auto-generated.\n         */\n        this.id = this._uniqueId;\n        /**\n         * Whether the label should appear after or before the slide-toggle. Defaults to 'after'.\n         */\n        this.labelPosition = 'after';\n        /**\n         * Used to set the aria-label attribute on the underlying input element.\n         */\n        this.ariaLabel = null;\n        /**\n         * Used to set the aria-labelledby attribute on the underlying input element.\n         */\n        this.ariaLabelledby = null;\n        /**\n         * An event will be dispatched each time the slide-toggle changes its value.\n         */\n        this.change = new EventEmitter();\n        /**\n         * An event will be dispatched each time the slide-toggle input is toggled.\n         * This event is always emitted when the user toggles the slide toggle, but this does not mean\n         * the slide toggle's value has changed.\n         */\n        this.toggleChange = new EventEmitter();\n        /**\n         * An event will be dispatched each time the slide-toggle is dragged.\n         * This event is always emitted when the user drags the slide toggle to make a change greater\n         * than 50%. It does not mean the slide toggle's value is changed. The event is not emitted when\n         * the user toggles the slide toggle to change its value.\n         * @deprecated No longer being used. To be removed.\n         * \\@breaking-change 10.0.0\n         */\n        this.dragChange = new EventEmitter();\n        this.tabIndex = parseInt(tabIndex) || 0;\n    }\n    /**\n     * Whether the slide-toggle is required.\n     * @return {?}\n     */\n    get required() { return this._required; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set required(value) { this._required = coerceBooleanProperty(value); }\n    /**\n     * Whether the slide-toggle element is checked or not.\n     * @return {?}\n     */\n    get checked() { return this._checked; }\n    /**\n     * @param {?} value\n     * @return {?}\n     */\n    set checked(value) {\n        this._checked = coerceBooleanProperty(value);\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * Returns the unique id for the visual hidden input.\n     * @return {?}\n     */\n    get inputId() { return `${this.id || this._uniqueId}-input`; }\n    /**\n     * @return {?}\n     */\n    ngAfterContentInit() {\n        this._focusMonitor\n            .monitor(this._elementRef, true)\n            .subscribe((/**\n         * @param {?} focusOrigin\n         * @return {?}\n         */\n        focusOrigin => {\n            // Only forward focus manually when it was received programmatically or through the\n            // keyboard. We should not do this for mouse/touch focus for two reasons:\n            // 1. It can prevent clicks from landing in Chrome (see #18269).\n            // 2. They're already handled by the wrapping `label` element.\n            if (focusOrigin === 'keyboard' || focusOrigin === 'program') {\n                this._inputElement.nativeElement.focus();\n            }\n            else if (!focusOrigin) {\n                // When a focused element becomes disabled, the browser *immediately* fires a blur event.\n                // Angular does not expect events to be raised during change detection, so any state\n                // change (such as a form control's 'ng-touched') will cause a changed-after-checked\n                // error. See https://github.com/angular/angular/issues/17793. To work around this,\n                // we defer telling the form control it has been touched until the next tick.\n                Promise.resolve().then((/**\n                 * @return {?}\n                 */\n                () => this._onTouched()));\n            }\n        }));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._focusMonitor.stopMonitoring(this._elementRef);\n    }\n    /**\n     * Method being called whenever the underlying input emits a change event.\n     * @param {?} event\n     * @return {?}\n     */\n    _onChangeEvent(event) {\n        // We always have to stop propagation on the change event.\n        // Otherwise the change event, from the input element, will bubble up and\n        // emit its event object to the component's `change` output.\n        event.stopPropagation();\n        this.toggleChange.emit();\n        // When the slide toggle's config disables toggle change event by setting\n        // `disableToggleValue: true`, the slide toggle's value does not change, and the\n        // checked state of the underlying input needs to be changed back.\n        if (this.defaults.disableToggleValue) {\n            this._inputElement.nativeElement.checked = this.checked;\n            return;\n        }\n        // Sync the value from the underlying input element with the component instance.\n        this.checked = this._inputElement.nativeElement.checked;\n        // Emit our custom change event only if the underlying input emitted one. This ensures that\n        // there is no change event, when the checked state changes programmatically.\n        this._emitChangeEvent();\n    }\n    /**\n     * Method being called whenever the slide-toggle has been clicked.\n     * @param {?} event\n     * @return {?}\n     */\n    _onInputClick(event) {\n        // We have to stop propagation for click events on the visual hidden input element.\n        // By default, when a user clicks on a label element, a generated click event will be\n        // dispatched on the associated input element. Since we are using a label element as our\n        // root container, the click event on the `slide-toggle` will be executed twice.\n        // The real click event will bubble up, and the generated click event also tries to bubble up.\n        // This will lead to multiple click events.\n        // Preventing bubbling for the second event will solve that issue.\n        event.stopPropagation();\n    }\n    /**\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} value\n     * @return {?}\n     */\n    writeValue(value) {\n        this.checked = !!value;\n    }\n    /**\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} fn\n     * @return {?}\n     */\n    registerOnChange(fn) {\n        this._onChange = fn;\n    }\n    /**\n     * Implemented as part of ControlValueAccessor.\n     * @param {?} fn\n     * @return {?}\n     */\n    registerOnTouched(fn) {\n        this._onTouched = fn;\n    }\n    /**\n     * Implemented as a part of ControlValueAccessor.\n     * @param {?} isDisabled\n     * @return {?}\n     */\n    setDisabledState(isDisabled) {\n        this.disabled = isDisabled;\n        this._changeDetectorRef.markForCheck();\n    }\n    /**\n     * Focuses the slide-toggle.\n     * @param {?=} options\n     * @return {?}\n     */\n    focus(options) {\n        this._focusMonitor.focusVia(this._inputElement, 'keyboard', options);\n    }\n    /**\n     * Toggles the checked state of the slide-toggle.\n     * @return {?}\n     */\n    toggle() {\n        this.checked = !this.checked;\n        this._onChange(this.checked);\n    }\n    /**\n     * Emits a change event on the `change` output. Also notifies the FormControl about the change.\n     * @private\n     * @return {?}\n     */\n    _emitChangeEvent() {\n        this._onChange(this.checked);\n        this.change.emit(new MatSlideToggleChange(this, this.checked));\n    }\n    /**\n     * Method being called whenever the label text changes.\n     * @return {?}\n     */\n    _onLabelTextChange() {\n        // Since the event of the `cdkObserveContent` directive runs outside of the zone, the\n        // slide-toggle component will be only marked for check, but no actual change detection runs\n        // automatically. Instead of going back into the zone in order to trigger a change detection\n        // which causes *all* components to be checked (if explicitly marked or not using OnPush),\n        // we only trigger an explicit change detection for the slide-toggle view and its children.\n        this._changeDetectorRef.detectChanges();\n    }\n}\nMatSlideToggle.ɵfac = function MatSlideToggle_Factory(t) { return new (t || MatSlideToggle)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc1.FocusMonitor), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ChangeDetectorRef), ɵngcc0.ɵɵinjectAttribute('tabindex'), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(MAT_SLIDE_TOGGLE_DEFAULT_OPTIONS), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8), ɵngcc0.ɵɵdirectiveInject(ɵngcc2.Directionality, 8)); };\nMatSlideToggle.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatSlideToggle, selectors: [[\"mat-slide-toggle\"]], viewQuery: function MatSlideToggle_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n        ɵngcc0.ɵɵviewQuery(_c1, true);\n        ɵngcc0.ɵɵviewQuery(_c2, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._thumbEl = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._thumbBarEl = _t.first);\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._inputElement = _t.first);\n    } }, hostAttrs: [1, \"mat-slide-toggle\"], hostVars: 12, hostBindings: function MatSlideToggle_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵhostProperty(\"id\", ctx.id);\n        ɵngcc0.ɵɵattribute(\"tabindex\", ctx.disabled ? null : 0 - 1)(\"aria-label\", null)(\"aria-labelledby\", null);\n        ɵngcc0.ɵɵclassProp(\"mat-checked\", ctx.checked)(\"mat-disabled\", ctx.disabled)(\"mat-slide-toggle-label-before\", ctx.labelPosition == \"before\")(\"_mat-animation-noopable\", ctx._animationMode === \"NoopAnimations\");\n    } }, inputs: { disabled: \"disabled\", disableRipple: \"disableRipple\", color: \"color\", tabIndex: \"tabIndex\", name: \"name\", id: \"id\", labelPosition: \"labelPosition\", ariaLabel: [\"aria-label\", \"ariaLabel\"], ariaLabelledby: [\"aria-labelledby\", \"ariaLabelledby\"], required: \"required\", checked: \"checked\" }, outputs: { change: \"change\", toggleChange: \"toggleChange\", dragChange: \"dragChange\" }, exportAs: [\"matSlideToggle\"], features: [ɵngcc0.ɵɵProvidersFeature([MAT_SLIDE_TOGGLE_VALUE_ACCESSOR]), ɵngcc0.ɵɵInheritDefinitionFeature], ngContentSelectors: _c4, decls: 16, vars: 18, consts: [[1, \"mat-slide-toggle-label\"], [\"label\", \"\"], [1, \"mat-slide-toggle-bar\"], [\"toggleBar\", \"\"], [\"type\", \"checkbox\", \"role\", \"switch\", 1, \"mat-slide-toggle-input\", \"cdk-visually-hidden\", 3, \"id\", \"required\", \"tabIndex\", \"checked\", \"disabled\", \"change\", \"click\"], [\"input\", \"\"], [1, \"mat-slide-toggle-thumb-container\"], [\"thumbContainer\", \"\"], [1, \"mat-slide-toggle-thumb\"], [\"mat-ripple\", \"\", 1, \"mat-slide-toggle-ripple\", \"mat-focus-indicator\", 3, \"matRippleTrigger\", \"matRippleDisabled\", \"matRippleCentered\", \"matRippleRadius\", \"matRippleAnimation\"], [1, \"mat-ripple-element\", \"mat-slide-toggle-persistent-ripple\"], [1, \"mat-slide-toggle-content\", 3, \"cdkObserveContent\"], [\"labelContent\", \"\"], [2, \"display\", \"none\"]], template: function MatSlideToggle_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵprojectionDef();\n        ɵngcc0.ɵɵelementStart(0, \"label\", 0, 1);\n        ɵngcc0.ɵɵelementStart(2, \"div\", 2, 3);\n        ɵngcc0.ɵɵelementStart(4, \"input\", 4, 5);\n        ɵngcc0.ɵɵlistener(\"change\", function MatSlideToggle_Template_input_change_4_listener($event) { return ctx._onChangeEvent($event); })(\"click\", function MatSlideToggle_Template_input_click_4_listener($event) { return ctx._onInputClick($event); });\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(6, \"div\", 6, 7);\n        ɵngcc0.ɵɵelement(8, \"div\", 8);\n        ɵngcc0.ɵɵelementStart(9, \"div\", 9);\n        ɵngcc0.ɵɵelement(10, \"div\", 10);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementStart(11, \"span\", 11, 12);\n        ɵngcc0.ɵɵlistener(\"cdkObserveContent\", function MatSlideToggle_Template_span_cdkObserveContent_11_listener() { return ctx._onLabelTextChange(); });\n        ɵngcc0.ɵɵelementStart(13, \"span\", 13);\n        ɵngcc0.ɵɵtext(14, \"\\u00A0\");\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵprojection(15);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n    } if (rf & 2) {\n        const _r0 = ɵngcc0.ɵɵreference(1);\n        const _r4 = ɵngcc0.ɵɵreference(12);\n        ɵngcc0.ɵɵattribute(\"for\", ctx.inputId);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵclassProp(\"mat-slide-toggle-bar-no-side-margin\", !_r4.textContent || !_r4.textContent.trim());\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵproperty(\"id\", ctx.inputId)(\"required\", ctx.required)(\"tabIndex\", ctx.tabIndex)(\"checked\", ctx.checked)(\"disabled\", ctx.disabled);\n        ɵngcc0.ɵɵattribute(\"name\", ctx.name)(\"aria-checked\", ctx.checked.toString())(\"aria-label\", ctx.ariaLabel)(\"aria-labelledby\", ctx.ariaLabelledby);\n        ɵngcc0.ɵɵadvance(5);\n        ɵngcc0.ɵɵproperty(\"matRippleTrigger\", _r0)(\"matRippleDisabled\", ctx.disableRipple || ctx.disabled)(\"matRippleCentered\", true)(\"matRippleRadius\", 20)(\"matRippleAnimation\", ɵngcc0.ɵɵpureFunction0(17, _c3));\n    } }, directives: [ɵngcc3.MatRipple, ɵngcc4.CdkObserveContent], styles: [\".mat-slide-toggle{display:inline-block;height:24px;max-width:100%;line-height:24px;white-space:nowrap;outline:none;-webkit-tap-highlight-color:transparent}.mat-slide-toggle.mat-checked .mat-slide-toggle-thumb-container{transform:translate3d(16px, 0, 0)}[dir=rtl] .mat-slide-toggle.mat-checked .mat-slide-toggle-thumb-container{transform:translate3d(-16px, 0, 0)}.mat-slide-toggle.mat-disabled{opacity:.38}.mat-slide-toggle.mat-disabled .mat-slide-toggle-label,.mat-slide-toggle.mat-disabled .mat-slide-toggle-thumb-container{cursor:default}.mat-slide-toggle-label{display:flex;flex:1;flex-direction:row;align-items:center;height:inherit;cursor:pointer}.mat-slide-toggle-content{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mat-slide-toggle-label-before .mat-slide-toggle-label{order:1}.mat-slide-toggle-label-before .mat-slide-toggle-bar{order:2}[dir=rtl] .mat-slide-toggle-label-before .mat-slide-toggle-bar,.mat-slide-toggle-bar{margin-right:8px;margin-left:0}[dir=rtl] .mat-slide-toggle-bar,.mat-slide-toggle-label-before .mat-slide-toggle-bar{margin-left:8px;margin-right:0}.mat-slide-toggle-bar-no-side-margin{margin-left:0;margin-right:0}.mat-slide-toggle-thumb-container{position:absolute;z-index:1;width:20px;height:20px;top:-3px;left:0;transform:translate3d(0, 0, 0);transition:all 80ms linear;transition-property:transform}._mat-animation-noopable .mat-slide-toggle-thumb-container{transition:none}[dir=rtl] .mat-slide-toggle-thumb-container{left:auto;right:0}.mat-slide-toggle-thumb{height:20px;width:20px;border-radius:50%}.mat-slide-toggle-bar{position:relative;width:36px;height:14px;flex-shrink:0;border-radius:8px}.mat-slide-toggle-input{bottom:0;left:10px}[dir=rtl] .mat-slide-toggle-input{left:auto;right:10px}.mat-slide-toggle-bar,.mat-slide-toggle-thumb{transition:all 80ms linear;transition-property:background-color;transition-delay:50ms}._mat-animation-noopable .mat-slide-toggle-bar,._mat-animation-noopable .mat-slide-toggle-thumb{transition:none}.mat-slide-toggle .mat-slide-toggle-ripple{position:absolute;top:calc(50% - 20px);left:calc(50% - 20px);height:40px;width:40px;z-index:1;pointer-events:none}.mat-slide-toggle .mat-slide-toggle-ripple .mat-ripple-element:not(.mat-slide-toggle-persistent-ripple){opacity:.12}.mat-slide-toggle-persistent-ripple{width:100%;height:100%;transform:none}.mat-slide-toggle-bar:hover .mat-slide-toggle-persistent-ripple{opacity:.04}.mat-slide-toggle:not(.mat-disabled).cdk-keyboard-focused .mat-slide-toggle-persistent-ripple{opacity:.12}.mat-slide-toggle-persistent-ripple,.mat-slide-toggle.mat-disabled .mat-slide-toggle-bar:hover .mat-slide-toggle-persistent-ripple{opacity:0}@media(hover: none){.mat-slide-toggle-bar:hover .mat-slide-toggle-persistent-ripple{display:none}}.cdk-high-contrast-active .mat-slide-toggle-thumb,.cdk-high-contrast-active .mat-slide-toggle-bar{border:1px solid}.cdk-high-contrast-active .mat-slide-toggle.cdk-keyboard-focused .mat-slide-toggle-bar{outline:2px dotted;outline-offset:5px}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatSlideToggle.ctorParameters = () => [\n    { type: ElementRef },\n    { type: FocusMonitor },\n    { type: ChangeDetectorRef },\n    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] },\n    { type: NgZone },\n    { type: undefined, decorators: [{ type: Inject, args: [MAT_SLIDE_TOGGLE_DEFAULT_OPTIONS,] }] },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] },\n    { type: Directionality, decorators: [{ type: Optional }] }\n];\nMatSlideToggle.propDecorators = {\n    _thumbEl: [{ type: ViewChild, args: ['thumbContainer',] }],\n    _thumbBarEl: [{ type: ViewChild, args: ['toggleBar',] }],\n    name: [{ type: Input }],\n    id: [{ type: Input }],\n    labelPosition: [{ type: Input }],\n    ariaLabel: [{ type: Input, args: ['aria-label',] }],\n    ariaLabelledby: [{ type: Input, args: ['aria-labelledby',] }],\n    required: [{ type: Input }],\n    checked: [{ type: Input }],\n    change: [{ type: Output }],\n    toggleChange: [{ type: Output }],\n    dragChange: [{ type: Output }],\n    _inputElement: [{ type: ViewChild, args: ['input',] }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSlideToggle, [{\n        type: Component,\n        args: [{\n                selector: 'mat-slide-toggle',\n                exportAs: 'matSlideToggle',\n                host: {\n                    'class': 'mat-slide-toggle',\n                    '[id]': 'id',\n                    // Needs to be `-1` so it can still receive programmatic focus.\n                    '[attr.tabindex]': 'disabled ? null : -1',\n                    '[attr.aria-label]': 'null',\n                    '[attr.aria-labelledby]': 'null',\n                    '[class.mat-checked]': 'checked',\n                    '[class.mat-disabled]': 'disabled',\n                    '[class.mat-slide-toggle-label-before]': 'labelPosition == \"before\"',\n                    '[class._mat-animation-noopable]': '_animationMode === \"NoopAnimations\"'\n                },\n                template: \"<label [attr.for]=\\\"inputId\\\" class=\\\"mat-slide-toggle-label\\\" #label>\\n  <div #toggleBar class=\\\"mat-slide-toggle-bar\\\"\\n       [class.mat-slide-toggle-bar-no-side-margin]=\\\"!labelContent.textContent || !labelContent.textContent.trim()\\\">\\n\\n    <input #input class=\\\"mat-slide-toggle-input cdk-visually-hidden\\\" type=\\\"checkbox\\\"\\n           role=\\\"switch\\\"\\n           [id]=\\\"inputId\\\"\\n           [required]=\\\"required\\\"\\n           [tabIndex]=\\\"tabIndex\\\"\\n           [checked]=\\\"checked\\\"\\n           [disabled]=\\\"disabled\\\"\\n           [attr.name]=\\\"name\\\"\\n           [attr.aria-checked]=\\\"checked.toString()\\\"\\n           [attr.aria-label]=\\\"ariaLabel\\\"\\n           [attr.aria-labelledby]=\\\"ariaLabelledby\\\"\\n           (change)=\\\"_onChangeEvent($event)\\\"\\n           (click)=\\\"_onInputClick($event)\\\">\\n\\n    <div class=\\\"mat-slide-toggle-thumb-container\\\" #thumbContainer>\\n      <div class=\\\"mat-slide-toggle-thumb\\\"></div>\\n      <div class=\\\"mat-slide-toggle-ripple mat-focus-indicator\\\" mat-ripple\\n           [matRippleTrigger]=\\\"label\\\"\\n           [matRippleDisabled]=\\\"disableRipple || disabled\\\"\\n           [matRippleCentered]=\\\"true\\\"\\n           [matRippleRadius]=\\\"20\\\"\\n           [matRippleAnimation]=\\\"{enterDuration: 150}\\\">\\n\\n        <div class=\\\"mat-ripple-element mat-slide-toggle-persistent-ripple\\\"></div>\\n      </div>\\n    </div>\\n\\n  </div>\\n\\n  <span class=\\\"mat-slide-toggle-content\\\" #labelContent (cdkObserveContent)=\\\"_onLabelTextChange()\\\">\\n    <!-- Add an invisible span so JAWS can read the label -->\\n    <span style=\\\"display:none\\\">&nbsp;</span>\\n    <ng-content></ng-content>\\n  </span>\\n</label>\\n\",\n                providers: [MAT_SLIDE_TOGGLE_VALUE_ACCESSOR],\n                inputs: ['disabled', 'disableRipple', 'color', 'tabIndex'],\n                encapsulation: ViewEncapsulation.None,\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                styles: [\".mat-slide-toggle{display:inline-block;height:24px;max-width:100%;line-height:24px;white-space:nowrap;outline:none;-webkit-tap-highlight-color:transparent}.mat-slide-toggle.mat-checked .mat-slide-toggle-thumb-container{transform:translate3d(16px, 0, 0)}[dir=rtl] .mat-slide-toggle.mat-checked .mat-slide-toggle-thumb-container{transform:translate3d(-16px, 0, 0)}.mat-slide-toggle.mat-disabled{opacity:.38}.mat-slide-toggle.mat-disabled .mat-slide-toggle-label,.mat-slide-toggle.mat-disabled .mat-slide-toggle-thumb-container{cursor:default}.mat-slide-toggle-label{display:flex;flex:1;flex-direction:row;align-items:center;height:inherit;cursor:pointer}.mat-slide-toggle-content{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mat-slide-toggle-label-before .mat-slide-toggle-label{order:1}.mat-slide-toggle-label-before .mat-slide-toggle-bar{order:2}[dir=rtl] .mat-slide-toggle-label-before .mat-slide-toggle-bar,.mat-slide-toggle-bar{margin-right:8px;margin-left:0}[dir=rtl] .mat-slide-toggle-bar,.mat-slide-toggle-label-before .mat-slide-toggle-bar{margin-left:8px;margin-right:0}.mat-slide-toggle-bar-no-side-margin{margin-left:0;margin-right:0}.mat-slide-toggle-thumb-container{position:absolute;z-index:1;width:20px;height:20px;top:-3px;left:0;transform:translate3d(0, 0, 0);transition:all 80ms linear;transition-property:transform}._mat-animation-noopable .mat-slide-toggle-thumb-container{transition:none}[dir=rtl] .mat-slide-toggle-thumb-container{left:auto;right:0}.mat-slide-toggle-thumb{height:20px;width:20px;border-radius:50%}.mat-slide-toggle-bar{position:relative;width:36px;height:14px;flex-shrink:0;border-radius:8px}.mat-slide-toggle-input{bottom:0;left:10px}[dir=rtl] .mat-slide-toggle-input{left:auto;right:10px}.mat-slide-toggle-bar,.mat-slide-toggle-thumb{transition:all 80ms linear;transition-property:background-color;transition-delay:50ms}._mat-animation-noopable .mat-slide-toggle-bar,._mat-animation-noopable .mat-slide-toggle-thumb{transition:none}.mat-slide-toggle .mat-slide-toggle-ripple{position:absolute;top:calc(50% - 20px);left:calc(50% - 20px);height:40px;width:40px;z-index:1;pointer-events:none}.mat-slide-toggle .mat-slide-toggle-ripple .mat-ripple-element:not(.mat-slide-toggle-persistent-ripple){opacity:.12}.mat-slide-toggle-persistent-ripple{width:100%;height:100%;transform:none}.mat-slide-toggle-bar:hover .mat-slide-toggle-persistent-ripple{opacity:.04}.mat-slide-toggle:not(.mat-disabled).cdk-keyboard-focused .mat-slide-toggle-persistent-ripple{opacity:.12}.mat-slide-toggle-persistent-ripple,.mat-slide-toggle.mat-disabled .mat-slide-toggle-bar:hover .mat-slide-toggle-persistent-ripple{opacity:0}@media(hover: none){.mat-slide-toggle-bar:hover .mat-slide-toggle-persistent-ripple{display:none}}.cdk-high-contrast-active .mat-slide-toggle-thumb,.cdk-high-contrast-active .mat-slide-toggle-bar{border:1px solid}.cdk-high-contrast-active .mat-slide-toggle.cdk-keyboard-focused .mat-slide-toggle-bar{outline:2px dotted;outline-offset:5px}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc1.FocusMonitor }, { type: ɵngcc0.ChangeDetectorRef }, { type: String, decorators: [{\n                type: Attribute,\n                args: ['tabindex']\n            }] }, { type: ɵngcc0.NgZone }, { type: undefined, decorators: [{\n                type: Inject,\n                args: [MAT_SLIDE_TOGGLE_DEFAULT_OPTIONS]\n            }] }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }, { type: ɵngcc2.Directionality, decorators: [{\n                type: Optional\n            }] }]; }, { name: [{\n            type: Input\n        }], id: [{\n            type: Input\n        }], labelPosition: [{\n            type: Input\n        }], ariaLabel: [{\n            type: Input,\n            args: ['aria-label']\n        }], ariaLabelledby: [{\n            type: Input,\n            args: ['aria-labelledby']\n        }], change: [{\n            type: Output\n        }], toggleChange: [{\n            type: Output\n        }], dragChange: [{\n            type: Output\n        }], required: [{\n            type: Input\n        }], checked: [{\n            type: Input\n        }], _thumbEl: [{\n            type: ViewChild,\n            args: ['thumbContainer']\n        }], _thumbBarEl: [{\n            type: ViewChild,\n            args: ['toggleBar']\n        }], _inputElement: [{\n            type: ViewChild,\n            args: ['input']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatSlideToggle.ngAcceptInputType_required;\n    /** @type {?} */\n    MatSlideToggle.ngAcceptInputType_checked;\n    /** @type {?} */\n    MatSlideToggle.ngAcceptInputType_disabled;\n    /** @type {?} */\n    MatSlideToggle.ngAcceptInputType_disableRipple;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlideToggle.prototype._onChange;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlideToggle.prototype._onTouched;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlideToggle.prototype._uniqueId;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlideToggle.prototype._required;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlideToggle.prototype._checked;\n    /**\n     * Reference to the thumb HTMLElement.\n     * @type {?}\n     */\n    MatSlideToggle.prototype._thumbEl;\n    /**\n     * Reference to the thumb bar HTMLElement.\n     * @type {?}\n     */\n    MatSlideToggle.prototype._thumbBarEl;\n    /**\n     * Name value will be applied to the input element if present.\n     * @type {?}\n     */\n    MatSlideToggle.prototype.name;\n    /**\n     * A unique id for the slide-toggle input. If none is supplied, it will be auto-generated.\n     * @type {?}\n     */\n    MatSlideToggle.prototype.id;\n    /**\n     * Whether the label should appear after or before the slide-toggle. Defaults to 'after'.\n     * @type {?}\n     */\n    MatSlideToggle.prototype.labelPosition;\n    /**\n     * Used to set the aria-label attribute on the underlying input element.\n     * @type {?}\n     */\n    MatSlideToggle.prototype.ariaLabel;\n    /**\n     * Used to set the aria-labelledby attribute on the underlying input element.\n     * @type {?}\n     */\n    MatSlideToggle.prototype.ariaLabelledby;\n    /**\n     * An event will be dispatched each time the slide-toggle changes its value.\n     * @type {?}\n     */\n    MatSlideToggle.prototype.change;\n    /**\n     * An event will be dispatched each time the slide-toggle input is toggled.\n     * This event is always emitted when the user toggles the slide toggle, but this does not mean\n     * the slide toggle's value has changed.\n     * @type {?}\n     */\n    MatSlideToggle.prototype.toggleChange;\n    /**\n     * An event will be dispatched each time the slide-toggle is dragged.\n     * This event is always emitted when the user drags the slide toggle to make a change greater\n     * than 50%. It does not mean the slide toggle's value is changed. The event is not emitted when\n     * the user toggles the slide toggle to change its value.\n     * @deprecated No longer being used. To be removed.\n     * \\@breaking-change 10.0.0\n     * @type {?}\n     */\n    MatSlideToggle.prototype.dragChange;\n    /**\n     * Reference to the underlying input element.\n     * @type {?}\n     */\n    MatSlideToggle.prototype._inputElement;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlideToggle.prototype._focusMonitor;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatSlideToggle.prototype._changeDetectorRef;\n    /** @type {?} */\n    MatSlideToggle.prototype.defaults;\n    /** @type {?} */\n    MatSlideToggle.prototype._animationMode;\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slide-toggle/slide-toggle-required-validator.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/** @type {?} */\nconst MAT_SLIDE_TOGGLE_REQUIRED_VALIDATOR = {\n    provide: NG_VALIDATORS,\n    useExisting: forwardRef((/**\n     * @return {?}\n     */\n    () => MatSlideToggleRequiredValidator)),\n    multi: true\n};\n/**\n * Validator for Material slide-toggle components with the required attribute in a\n * template-driven form. The default validator for required form controls asserts\n * that the control value is not undefined but that is not appropriate for a slide-toggle\n * where the value is always defined.\n *\n * Required slide-toggle form controls are valid when checked.\n */\nclass MatSlideToggleRequiredValidator extends CheckboxRequiredValidator {\n}\nMatSlideToggleRequiredValidator.ɵfac = function MatSlideToggleRequiredValidator_Factory(t) { return ɵMatSlideToggleRequiredValidator_BaseFactory(t || MatSlideToggleRequiredValidator); };\nMatSlideToggleRequiredValidator.ɵdir = ɵngcc0.ɵɵdefineDirective({ type: MatSlideToggleRequiredValidator, selectors: [[\"mat-slide-toggle\", \"required\", \"\", \"formControlName\", \"\"], [\"mat-slide-toggle\", \"required\", \"\", \"formControl\", \"\"], [\"mat-slide-toggle\", \"required\", \"\", \"ngModel\", \"\"]], features: [ɵngcc0.ɵɵProvidersFeature([MAT_SLIDE_TOGGLE_REQUIRED_VALIDATOR]), ɵngcc0.ɵɵInheritDefinitionFeature] });\nconst ɵMatSlideToggleRequiredValidator_BaseFactory = ɵngcc0.ɵɵgetInheritedFactory(MatSlideToggleRequiredValidator);\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSlideToggleRequiredValidator, [{\n        type: Directive,\n        args: [{\n                selector: `mat-slide-toggle[required][formControlName],\n             mat-slide-toggle[required][formControl], mat-slide-toggle[required][ngModel]`,\n                providers: [MAT_SLIDE_TOGGLE_REQUIRED_VALIDATOR]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slide-toggle/slide-toggle-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * This module is used by both original and MDC-based slide-toggle implementations.\n */\n// tslint:disable-next-line:class-name\nclass _MatSlideToggleRequiredValidatorModule {\n}\n_MatSlideToggleRequiredValidatorModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: _MatSlideToggleRequiredValidatorModule });\n_MatSlideToggleRequiredValidatorModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function _MatSlideToggleRequiredValidatorModule_Factory(t) { return new (t || _MatSlideToggleRequiredValidatorModule)(); } });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(_MatSlideToggleRequiredValidatorModule, { declarations: [MatSlideToggleRequiredValidator], exports: [MatSlideToggleRequiredValidator] }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(_MatSlideToggleRequiredValidatorModule, [{\n        type: NgModule,\n        args: [{\n                exports: [MatSlideToggleRequiredValidator],\n                declarations: [MatSlideToggleRequiredValidator]\n            }]\n    }], null, null); })();\nclass MatSlideToggleModule {\n}\nMatSlideToggleModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatSlideToggleModule });\nMatSlideToggleModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatSlideToggleModule_Factory(t) { return new (t || MatSlideToggleModule)(); }, imports: [[\n            _MatSlideToggleRequiredValidatorModule,\n            MatRippleModule,\n            MatCommonModule,\n            ObserversModule,\n        ], _MatSlideToggleRequiredValidatorModule, MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatSlideToggleModule, { declarations: function () { return [MatSlideToggle]; }, imports: function () { return [_MatSlideToggleRequiredValidatorModule, MatRippleModule,\n        MatCommonModule,\n        ObserversModule]; }, exports: function () { return [_MatSlideToggleRequiredValidatorModule, MatSlideToggle, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatSlideToggleModule, [{\n        type: NgModule,\n        args: [{\n                imports: [\n                    _MatSlideToggleRequiredValidatorModule,\n                    MatRippleModule,\n                    MatCommonModule,\n                    ObserversModule,\n                ],\n                exports: [\n                    _MatSlideToggleRequiredValidatorModule,\n                    MatSlideToggle,\n                    MatCommonModule\n                ],\n                declarations: [MatSlideToggle]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/slide-toggle/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_SLIDE_TOGGLE_DEFAULT_OPTIONS, MAT_SLIDE_TOGGLE_REQUIRED_VALIDATOR, MAT_SLIDE_TOGGLE_VALUE_ACCESSOR, MatSlideToggle, MatSlideToggleChange, MatSlideToggleModule, MatSlideToggleRequiredValidator, _MatSlideToggleRequiredValidatorModule };\n\n//# sourceMappingURL=slide-toggle.js.map","import {NgModule} from '@angular/core';\r\nimport {HttpClientModule} from '@angular/common/http';\r\n\r\n@NgModule({\r\n    imports: [\r\n        HttpClientModule,\r\n    ],\r\n})\r\nexport class HttpModule {}\r\n","import {NgModule} from '@angular/core';\r\nimport {CustomScrollbarDirective} from './custom-scrollbar.directive';\r\n\r\n@NgModule({\r\n    declarations: [\r\n        CustomScrollbarDirective\r\n    ],\r\n    exports: [\r\n        CustomScrollbarDirective,\r\n    ]\r\n})\r\nexport class CustomScrollbarModule {\r\n}\r\n","import {NgModule} from '@angular/core';\r\nimport {GoogleFontsPanelComponent} from './google-fonts-panel.component';\r\nimport {ReactiveFormsModule} from '@angular/forms';\r\nimport {CommonModule} from '@angular/common';\r\nimport {HttpClientModule} from '@angular/common/http';\r\nimport {GoogleFontsPanelService} from './google-fonts-panel.service';\r\nimport {FontsPaginatorService} from './fonts-paginator.service';\r\nimport { MatIconModule } from '@angular/material/icon';\r\nimport { MatPaginatorModule } from '@angular/material/paginator';\r\nimport { MatTooltipModule } from '@angular/material/tooltip';\r\nimport {TranslationsModule} from '@common/core/translations/translations.module';\r\n\r\n@NgModule({\r\n    imports: [\r\n        ReactiveFormsModule,\r\n        CommonModule,\r\n        HttpClientModule,\r\n        TranslationsModule,\r\n\r\n        // material\r\n        MatIconModule,\r\n        MatTooltipModule,\r\n        MatPaginatorModule,\r\n    ],\r\n    entryComponents: [\r\n        GoogleFontsPanelComponent,\r\n    ],\r\n    declarations: [\r\n        GoogleFontsPanelComponent,\r\n    ],\r\n    providers: [\r\n        GoogleFontsPanelService,\r\n        FontsPaginatorService,\r\n    ],\r\n    exports: [\r\n        GoogleFontsPanelComponent,\r\n    ],\r\n})\r\nexport class GoogleFontsModule {\r\n}\r\n","import {NgModule} from '@angular/core';\r\nimport {CommonModule} from '@angular/common';\r\nimport {MatButtonModule} from '@angular/material/button';\r\nimport {MatIconModule} from '@angular/material/icon';\r\nimport {MatProgressBarModule} from '@angular/material/progress-bar';\r\nimport {UploadButtonDirective} from './directives/upload-button.directive';\r\nimport {UploadDropzoneDirective} from './directives/upload-dropzone.directive';\r\nimport {UploadProgressBarComponent} from './upload-progress-bar/upload-progress-bar.component';\r\n\r\n@NgModule({\r\n    imports: [\r\n        CommonModule,\r\n\r\n        // material\r\n        MatButtonModule,\r\n        MatProgressBarModule,\r\n        MatIconModule,\r\n    ],\r\n    declarations: [\r\n        UploadDropzoneDirective,\r\n        UploadButtonDirective,\r\n        UploadProgressBarComponent,\r\n    ],\r\n    exports: [\r\n        UploadDropzoneDirective,\r\n        UploadButtonDirective,\r\n        UploadProgressBarComponent,\r\n    ],\r\n})\r\nexport class UploadsModule {\r\n}\r\n","import { InjectionToken, inject, EventEmitter, Component, ChangeDetectionStrategy, ViewEncapsulation, ElementRef, NgZone, Optional, Inject, Input, ViewChild, Output, NgModule } from '@angular/core';\nimport { DOCUMENT, CommonModule } from '@angular/common';\nimport { mixinColor, MatCommonModule } from '@angular/material/core';\nimport { coerceNumberProperty } from '@angular/cdk/coercion';\nimport { ANIMATION_MODULE_TYPE } from '@angular/platform-browser/animations';\nimport { Subscription, fromEvent } from 'rxjs';\nimport { filter } from 'rxjs/operators';\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/progress-bar/progress-bar.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n/**\n * Last animation end data.\n * @record\n */\nimport * as ɵngcc0 from '@angular/core';\nimport * as ɵngcc1 from '@angular/common';\n\nconst _c0 = [\"primaryValueBar\"];\nfunction ProgressAnimationEnd() { }\nif (false) {\n    /** @type {?} */\n    ProgressAnimationEnd.prototype.value;\n}\n// Boilerplate for applying mixins to MatProgressBar.\n/**\n * \\@docs-private\n */\nclass MatProgressBarBase {\n    /**\n     * @param {?} _elementRef\n     */\n    constructor(_elementRef) {\n        this._elementRef = _elementRef;\n    }\n}\nif (false) {\n    /** @type {?} */\n    MatProgressBarBase.prototype._elementRef;\n}\n/** @type {?} */\nconst _MatProgressBarMixinBase = mixinColor(MatProgressBarBase, 'primary');\n/**\n * Injection token used to provide the current location to `MatProgressBar`.\n * Used to handle server-side rendering and to stub out during unit tests.\n * \\@docs-private\n * @type {?}\n */\nconst MAT_PROGRESS_BAR_LOCATION = new InjectionToken('mat-progress-bar-location', { providedIn: 'root', factory: MAT_PROGRESS_BAR_LOCATION_FACTORY });\n/**\n * Stubbed out location for `MatProgressBar`.\n * \\@docs-private\n * @record\n */\nfunction MatProgressBarLocation() { }\nif (false) {\n    /** @type {?} */\n    MatProgressBarLocation.prototype.getPathname;\n}\n/**\n * \\@docs-private\n * @return {?}\n */\nfunction MAT_PROGRESS_BAR_LOCATION_FACTORY() {\n    /** @type {?} */\n    const _document = inject(DOCUMENT);\n    /** @type {?} */\n    const _location = _document ? _document.location : null;\n    return {\n        // Note that this needs to be a function, rather than a property, because Angular\n        // will only resolve it once, but we want the current path on each call.\n        getPathname: (/**\n         * @return {?}\n         */\n        () => _location ? (_location.pathname + _location.search) : '')\n    };\n}\n/**\n * Counter used to generate unique IDs for progress bars.\n * @type {?}\n */\nlet progressbarId = 0;\n/**\n * `<mat-progress-bar>` component.\n */\nclass MatProgressBar extends _MatProgressBarMixinBase {\n    /**\n     * @param {?} _elementRef\n     * @param {?} _ngZone\n     * @param {?=} _animationMode\n     * @param {?=} location\n     */\n    constructor(_elementRef, _ngZone, _animationMode, \n    /**\n     * @deprecated `location` parameter to be made required.\n     * @breaking-change 8.0.0\n     */\n    location) {\n        super(_elementRef);\n        this._elementRef = _elementRef;\n        this._ngZone = _ngZone;\n        this._animationMode = _animationMode;\n        /**\n         * Flag that indicates whether NoopAnimations mode is set to true.\n         */\n        this._isNoopAnimation = false;\n        this._value = 0;\n        this._bufferValue = 0;\n        /**\n         * Event emitted when animation of the primary progress bar completes. This event will not\n         * be emitted when animations are disabled, nor will it be emitted for modes with continuous\n         * animations (indeterminate and query).\n         */\n        this.animationEnd = new EventEmitter();\n        /**\n         * Reference to animation end subscription to be unsubscribed on destroy.\n         */\n        this._animationEndSubscription = Subscription.EMPTY;\n        /**\n         * Mode of the progress bar.\n         *\n         * Input must be one of these values: determinate, indeterminate, buffer, query, defaults to\n         * 'determinate'.\n         * Mirrored to mode attribute.\n         */\n        this.mode = 'determinate';\n        /**\n         * ID of the progress bar.\n         */\n        this.progressbarId = `mat-progress-bar-${progressbarId++}`;\n        // We need to prefix the SVG reference with the current path, otherwise they won't work\n        // in Safari if the page has a `<base>` tag. Note that we need quotes inside the `url()`,\n        // because named route URLs can contain parentheses (see #12338). Also we don't use since\n        // we can't tell the difference between whether\n        // the consumer is using the hash location strategy or not, because `Location` normalizes\n        // both `/#/foo/bar` and `/foo/bar` to the same thing.\n        /** @type {?} */\n        const path = location ? location.getPathname().split('#')[0] : '';\n        this._rectangleFillValue = `url('${path}#${this.progressbarId}')`;\n        this._isNoopAnimation = _animationMode === 'NoopAnimations';\n    }\n    /**\n     * Value of the progress bar. Defaults to zero. Mirrored to aria-valuenow.\n     * @return {?}\n     */\n    get value() { return this._value; }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set value(v) {\n        this._value = clamp(coerceNumberProperty(v) || 0);\n    }\n    /**\n     * Buffer value of the progress bar. Defaults to zero.\n     * @return {?}\n     */\n    get bufferValue() { return this._bufferValue; }\n    /**\n     * @param {?} v\n     * @return {?}\n     */\n    set bufferValue(v) { this._bufferValue = clamp(v || 0); }\n    /**\n     * Gets the current transform value for the progress bar's primary indicator.\n     * @return {?}\n     */\n    _primaryTransform() {\n        /** @type {?} */\n        const scale = this.value / 100;\n        return { transform: `scaleX(${scale})` };\n    }\n    /**\n     * Gets the current transform value for the progress bar's buffer indicator. Only used if the\n     * progress mode is set to buffer, otherwise returns an undefined, causing no transformation.\n     * @return {?}\n     */\n    _bufferTransform() {\n        if (this.mode === 'buffer') {\n            /** @type {?} */\n            const scale = this.bufferValue / 100;\n            return { transform: `scaleX(${scale})` };\n        }\n        return null;\n    }\n    /**\n     * @return {?}\n     */\n    ngAfterViewInit() {\n        // Run outside angular so change detection didn't get triggered on every transition end\n        // instead only on the animation that we care about (primary value bar's transitionend)\n        this._ngZone.runOutsideAngular(((/**\n         * @return {?}\n         */\n        () => {\n            /** @type {?} */\n            const element = this._primaryValueBar.nativeElement;\n            this._animationEndSubscription =\n                ((/** @type {?} */ (fromEvent(element, 'transitionend'))))\n                    .pipe(filter(((/**\n                 * @param {?} e\n                 * @return {?}\n                 */\n                (e) => e.target === element))))\n                    .subscribe((/**\n                 * @return {?}\n                 */\n                () => {\n                    if (this.mode === 'determinate' || this.mode === 'buffer') {\n                        this._ngZone.run((/**\n                         * @return {?}\n                         */\n                        () => this.animationEnd.next({ value: this.value })));\n                    }\n                }));\n        })));\n    }\n    /**\n     * @return {?}\n     */\n    ngOnDestroy() {\n        this._animationEndSubscription.unsubscribe();\n    }\n}\nMatProgressBar.ɵfac = function MatProgressBar_Factory(t) { return new (t || MatProgressBar)(ɵngcc0.ɵɵdirectiveInject(ɵngcc0.ElementRef), ɵngcc0.ɵɵdirectiveInject(ɵngcc0.NgZone), ɵngcc0.ɵɵdirectiveInject(ANIMATION_MODULE_TYPE, 8), ɵngcc0.ɵɵdirectiveInject(MAT_PROGRESS_BAR_LOCATION, 8)); };\nMatProgressBar.ɵcmp = ɵngcc0.ɵɵdefineComponent({ type: MatProgressBar, selectors: [[\"mat-progress-bar\"]], viewQuery: function MatProgressBar_Query(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵviewQuery(_c0, true);\n    } if (rf & 2) {\n        var _t;\n        ɵngcc0.ɵɵqueryRefresh(_t = ɵngcc0.ɵɵloadQuery()) && (ctx._primaryValueBar = _t.first);\n    } }, hostAttrs: [\"role\", \"progressbar\", \"aria-valuemin\", \"0\", \"aria-valuemax\", \"100\", 1, \"mat-progress-bar\"], hostVars: 4, hostBindings: function MatProgressBar_HostBindings(rf, ctx) { if (rf & 2) {\n        ɵngcc0.ɵɵattribute(\"aria-valuenow\", ctx.mode === \"indeterminate\" || ctx.mode === \"query\" ? null : ctx.value)(\"mode\", ctx.mode);\n        ɵngcc0.ɵɵclassProp(\"_mat-animation-noopable\", ctx._isNoopAnimation);\n    } }, inputs: { color: \"color\", mode: \"mode\", value: \"value\", bufferValue: \"bufferValue\" }, outputs: { animationEnd: \"animationEnd\" }, exportAs: [\"matProgressBar\"], features: [ɵngcc0.ɵɵInheritDefinitionFeature], decls: 9, vars: 4, consts: [[\"width\", \"100%\", \"height\", \"4\", \"focusable\", \"false\", 1, \"mat-progress-bar-background\", \"mat-progress-bar-element\"], [\"x\", \"4\", \"y\", \"0\", \"width\", \"8\", \"height\", \"4\", \"patternUnits\", \"userSpaceOnUse\", 3, \"id\"], [\"cx\", \"2\", \"cy\", \"2\", \"r\", \"2\"], [\"width\", \"100%\", \"height\", \"100%\"], [1, \"mat-progress-bar-buffer\", \"mat-progress-bar-element\", 3, \"ngStyle\"], [1, \"mat-progress-bar-primary\", \"mat-progress-bar-fill\", \"mat-progress-bar-element\", 3, \"ngStyle\"], [\"primaryValueBar\", \"\"], [1, \"mat-progress-bar-secondary\", \"mat-progress-bar-fill\", \"mat-progress-bar-element\"]], template: function MatProgressBar_Template(rf, ctx) { if (rf & 1) {\n        ɵngcc0.ɵɵnamespaceSVG();\n        ɵngcc0.ɵɵelementStart(0, \"svg\", 0);\n        ɵngcc0.ɵɵelementStart(1, \"defs\");\n        ɵngcc0.ɵɵelementStart(2, \"pattern\", 1);\n        ɵngcc0.ɵɵelement(3, \"circle\", 2);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵelement(4, \"rect\", 3);\n        ɵngcc0.ɵɵelementEnd();\n        ɵngcc0.ɵɵnamespaceHTML();\n        ɵngcc0.ɵɵelement(5, \"div\", 4);\n        ɵngcc0.ɵɵelement(6, \"div\", 5, 6);\n        ɵngcc0.ɵɵelement(8, \"div\", 7);\n    } if (rf & 2) {\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵproperty(\"id\", ctx.progressbarId);\n        ɵngcc0.ɵɵadvance(2);\n        ɵngcc0.ɵɵattribute(\"fill\", ctx._rectangleFillValue);\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngStyle\", ctx._bufferTransform());\n        ɵngcc0.ɵɵadvance(1);\n        ɵngcc0.ɵɵproperty(\"ngStyle\", ctx._primaryTransform());\n    } }, directives: [ɵngcc1.NgStyle], styles: [\".mat-progress-bar{display:block;height:4px;overflow:hidden;position:relative;transition:opacity 250ms linear;width:100%}._mat-animation-noopable.mat-progress-bar{transition:none;animation:none}.mat-progress-bar .mat-progress-bar-element,.mat-progress-bar .mat-progress-bar-fill::after{height:100%;position:absolute;width:100%}.mat-progress-bar .mat-progress-bar-background{width:calc(100% + 10px)}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-background{display:none}.mat-progress-bar .mat-progress-bar-buffer{transform-origin:top left;transition:transform 250ms ease}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-buffer{border-top:solid 5px;opacity:.5}.mat-progress-bar .mat-progress-bar-secondary{display:none}.mat-progress-bar .mat-progress-bar-fill{animation:none;transform-origin:top left;transition:transform 250ms ease}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-fill{border-top:solid 4px}.mat-progress-bar .mat-progress-bar-fill::after{animation:none;content:\\\"\\\";display:inline-block;left:0}.mat-progress-bar[dir=rtl],[dir=rtl] .mat-progress-bar{transform:rotateY(180deg)}.mat-progress-bar[mode=query]{transform:rotateZ(180deg)}.mat-progress-bar[mode=query][dir=rtl],[dir=rtl] .mat-progress-bar[mode=query]{transform:rotateZ(180deg) rotateY(180deg)}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-fill,.mat-progress-bar[mode=query] .mat-progress-bar-fill{transition:none}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-primary,.mat-progress-bar[mode=query] .mat-progress-bar-primary{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-primary-indeterminate-translate 2000ms infinite linear;left:-145.166611%}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-primary.mat-progress-bar-fill::after,.mat-progress-bar[mode=query] .mat-progress-bar-primary.mat-progress-bar-fill::after{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-primary-indeterminate-scale 2000ms infinite linear}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-secondary,.mat-progress-bar[mode=query] .mat-progress-bar-secondary{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-secondary-indeterminate-translate 2000ms infinite linear;left:-54.888891%;display:block}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-secondary.mat-progress-bar-fill::after,.mat-progress-bar[mode=query] .mat-progress-bar-secondary.mat-progress-bar-fill::after{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-secondary-indeterminate-scale 2000ms infinite linear}.mat-progress-bar[mode=buffer] .mat-progress-bar-background{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-background-scroll 250ms infinite linear;display:block}.mat-progress-bar._mat-animation-noopable .mat-progress-bar-fill,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-buffer,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-primary,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-primary.mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-secondary,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-secondary.mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-background{animation:none;transition-duration:1ms}@keyframes mat-progress-bar-primary-indeterminate-translate{0%{transform:translateX(0)}20%{animation-timing-function:cubic-bezier(0.5, 0, 0.701732, 0.495819);transform:translateX(0)}59.15%{animation-timing-function:cubic-bezier(0.302435, 0.381352, 0.55, 0.956352);transform:translateX(83.67142%)}100%{transform:translateX(200.611057%)}}@keyframes mat-progress-bar-primary-indeterminate-scale{0%{transform:scaleX(0.08)}36.65%{animation-timing-function:cubic-bezier(0.334731, 0.12482, 0.785844, 1);transform:scaleX(0.08)}69.15%{animation-timing-function:cubic-bezier(0.06, 0.11, 0.6, 1);transform:scaleX(0.661479)}100%{transform:scaleX(0.08)}}@keyframes mat-progress-bar-secondary-indeterminate-translate{0%{animation-timing-function:cubic-bezier(0.15, 0, 0.515058, 0.409685);transform:translateX(0)}25%{animation-timing-function:cubic-bezier(0.31033, 0.284058, 0.8, 0.733712);transform:translateX(37.651913%)}48.35%{animation-timing-function:cubic-bezier(0.4, 0.627035, 0.6, 0.902026);transform:translateX(84.386165%)}100%{transform:translateX(160.277782%)}}@keyframes mat-progress-bar-secondary-indeterminate-scale{0%{animation-timing-function:cubic-bezier(0.15, 0, 0.515058, 0.409685);transform:scaleX(0.08)}19.15%{animation-timing-function:cubic-bezier(0.31033, 0.284058, 0.8, 0.733712);transform:scaleX(0.457104)}44.15%{animation-timing-function:cubic-bezier(0.4, 0.627035, 0.6, 0.902026);transform:scaleX(0.72796)}100%{transform:scaleX(0.08)}}@keyframes mat-progress-bar-background-scroll{to{transform:translateX(-8px)}}\\n\"], encapsulation: 2, changeDetection: 0 });\n/** @nocollapse */\nMatProgressBar.ctorParameters = () => [\n    { type: ElementRef },\n    { type: NgZone },\n    { type: String, decorators: [{ type: Optional }, { type: Inject, args: [ANIMATION_MODULE_TYPE,] }] },\n    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [MAT_PROGRESS_BAR_LOCATION,] }] }\n];\nMatProgressBar.propDecorators = {\n    value: [{ type: Input }],\n    bufferValue: [{ type: Input }],\n    _primaryValueBar: [{ type: ViewChild, args: ['primaryValueBar',] }],\n    animationEnd: [{ type: Output }],\n    mode: [{ type: Input }]\n};\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatProgressBar, [{\n        type: Component,\n        args: [{\n                selector: 'mat-progress-bar',\n                exportAs: 'matProgressBar',\n                host: {\n                    'role': 'progressbar',\n                    'aria-valuemin': '0',\n                    'aria-valuemax': '100',\n                    '[attr.aria-valuenow]': '(mode === \"indeterminate\" || mode === \"query\") ? null : value',\n                    '[attr.mode]': 'mode',\n                    'class': 'mat-progress-bar',\n                    '[class._mat-animation-noopable]': '_isNoopAnimation'\n                },\n                inputs: ['color'],\n                template: \"<!--\\n  The background div is named as such because it appears below the other divs and is not sized based\\n  on values.\\n-->\\n<svg width=\\\"100%\\\" height=\\\"4\\\" focusable=\\\"false\\\" class=\\\"mat-progress-bar-background mat-progress-bar-element\\\">\\n  <defs>\\n    <pattern [id]=\\\"progressbarId\\\" x=\\\"4\\\" y=\\\"0\\\" width=\\\"8\\\" height=\\\"4\\\" patternUnits=\\\"userSpaceOnUse\\\">\\n      <circle cx=\\\"2\\\" cy=\\\"2\\\" r=\\\"2\\\"/>\\n    </pattern>\\n  </defs>\\n  <rect [attr.fill]=\\\"_rectangleFillValue\\\" width=\\\"100%\\\" height=\\\"100%\\\"/>\\n</svg>\\n<div class=\\\"mat-progress-bar-buffer mat-progress-bar-element\\\" [ngStyle]=\\\"_bufferTransform()\\\"></div>\\n<div class=\\\"mat-progress-bar-primary mat-progress-bar-fill mat-progress-bar-element\\\" [ngStyle]=\\\"_primaryTransform()\\\" #primaryValueBar></div>\\n<div class=\\\"mat-progress-bar-secondary mat-progress-bar-fill mat-progress-bar-element\\\"></div>\\n\",\n                changeDetection: ChangeDetectionStrategy.OnPush,\n                encapsulation: ViewEncapsulation.None,\n                styles: [\".mat-progress-bar{display:block;height:4px;overflow:hidden;position:relative;transition:opacity 250ms linear;width:100%}._mat-animation-noopable.mat-progress-bar{transition:none;animation:none}.mat-progress-bar .mat-progress-bar-element,.mat-progress-bar .mat-progress-bar-fill::after{height:100%;position:absolute;width:100%}.mat-progress-bar .mat-progress-bar-background{width:calc(100% + 10px)}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-background{display:none}.mat-progress-bar .mat-progress-bar-buffer{transform-origin:top left;transition:transform 250ms ease}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-buffer{border-top:solid 5px;opacity:.5}.mat-progress-bar .mat-progress-bar-secondary{display:none}.mat-progress-bar .mat-progress-bar-fill{animation:none;transform-origin:top left;transition:transform 250ms ease}.cdk-high-contrast-active .mat-progress-bar .mat-progress-bar-fill{border-top:solid 4px}.mat-progress-bar .mat-progress-bar-fill::after{animation:none;content:\\\"\\\";display:inline-block;left:0}.mat-progress-bar[dir=rtl],[dir=rtl] .mat-progress-bar{transform:rotateY(180deg)}.mat-progress-bar[mode=query]{transform:rotateZ(180deg)}.mat-progress-bar[mode=query][dir=rtl],[dir=rtl] .mat-progress-bar[mode=query]{transform:rotateZ(180deg) rotateY(180deg)}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-fill,.mat-progress-bar[mode=query] .mat-progress-bar-fill{transition:none}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-primary,.mat-progress-bar[mode=query] .mat-progress-bar-primary{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-primary-indeterminate-translate 2000ms infinite linear;left:-145.166611%}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-primary.mat-progress-bar-fill::after,.mat-progress-bar[mode=query] .mat-progress-bar-primary.mat-progress-bar-fill::after{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-primary-indeterminate-scale 2000ms infinite linear}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-secondary,.mat-progress-bar[mode=query] .mat-progress-bar-secondary{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-secondary-indeterminate-translate 2000ms infinite linear;left:-54.888891%;display:block}.mat-progress-bar[mode=indeterminate] .mat-progress-bar-secondary.mat-progress-bar-fill::after,.mat-progress-bar[mode=query] .mat-progress-bar-secondary.mat-progress-bar-fill::after{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-secondary-indeterminate-scale 2000ms infinite linear}.mat-progress-bar[mode=buffer] .mat-progress-bar-background{-webkit-backface-visibility:hidden;backface-visibility:hidden;animation:mat-progress-bar-background-scroll 250ms infinite linear;display:block}.mat-progress-bar._mat-animation-noopable .mat-progress-bar-fill,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-buffer,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-primary,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-primary.mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-secondary,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-secondary.mat-progress-bar-fill::after,.mat-progress-bar._mat-animation-noopable .mat-progress-bar-background{animation:none;transition-duration:1ms}@keyframes mat-progress-bar-primary-indeterminate-translate{0%{transform:translateX(0)}20%{animation-timing-function:cubic-bezier(0.5, 0, 0.701732, 0.495819);transform:translateX(0)}59.15%{animation-timing-function:cubic-bezier(0.302435, 0.381352, 0.55, 0.956352);transform:translateX(83.67142%)}100%{transform:translateX(200.611057%)}}@keyframes mat-progress-bar-primary-indeterminate-scale{0%{transform:scaleX(0.08)}36.65%{animation-timing-function:cubic-bezier(0.334731, 0.12482, 0.785844, 1);transform:scaleX(0.08)}69.15%{animation-timing-function:cubic-bezier(0.06, 0.11, 0.6, 1);transform:scaleX(0.661479)}100%{transform:scaleX(0.08)}}@keyframes mat-progress-bar-secondary-indeterminate-translate{0%{animation-timing-function:cubic-bezier(0.15, 0, 0.515058, 0.409685);transform:translateX(0)}25%{animation-timing-function:cubic-bezier(0.31033, 0.284058, 0.8, 0.733712);transform:translateX(37.651913%)}48.35%{animation-timing-function:cubic-bezier(0.4, 0.627035, 0.6, 0.902026);transform:translateX(84.386165%)}100%{transform:translateX(160.277782%)}}@keyframes mat-progress-bar-secondary-indeterminate-scale{0%{animation-timing-function:cubic-bezier(0.15, 0, 0.515058, 0.409685);transform:scaleX(0.08)}19.15%{animation-timing-function:cubic-bezier(0.31033, 0.284058, 0.8, 0.733712);transform:scaleX(0.457104)}44.15%{animation-timing-function:cubic-bezier(0.4, 0.627035, 0.6, 0.902026);transform:scaleX(0.72796)}100%{transform:scaleX(0.08)}}@keyframes mat-progress-bar-background-scroll{to{transform:translateX(-8px)}}\\n\"]\n            }]\n    }], function () { return [{ type: ɵngcc0.ElementRef }, { type: ɵngcc0.NgZone }, { type: String, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [ANIMATION_MODULE_TYPE]\n            }] }, { type: undefined, decorators: [{\n                type: Optional\n            }, {\n                type: Inject,\n                args: [MAT_PROGRESS_BAR_LOCATION]\n            }] }]; }, { animationEnd: [{\n            type: Output\n        }], mode: [{\n            type: Input\n        }], value: [{\n            type: Input\n        }], bufferValue: [{\n            type: Input\n        }], _primaryValueBar: [{\n            type: ViewChild,\n            args: ['primaryValueBar']\n        }] }); })();\nif (false) {\n    /** @type {?} */\n    MatProgressBar.ngAcceptInputType_value;\n    /**\n     * Flag that indicates whether NoopAnimations mode is set to true.\n     * @type {?}\n     */\n    MatProgressBar.prototype._isNoopAnimation;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatProgressBar.prototype._value;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatProgressBar.prototype._bufferValue;\n    /** @type {?} */\n    MatProgressBar.prototype._primaryValueBar;\n    /**\n     * Event emitted when animation of the primary progress bar completes. This event will not\n     * be emitted when animations are disabled, nor will it be emitted for modes with continuous\n     * animations (indeterminate and query).\n     * @type {?}\n     */\n    MatProgressBar.prototype.animationEnd;\n    /**\n     * Reference to animation end subscription to be unsubscribed on destroy.\n     * @type {?}\n     * @private\n     */\n    MatProgressBar.prototype._animationEndSubscription;\n    /**\n     * Mode of the progress bar.\n     *\n     * Input must be one of these values: determinate, indeterminate, buffer, query, defaults to\n     * 'determinate'.\n     * Mirrored to mode attribute.\n     * @type {?}\n     */\n    MatProgressBar.prototype.mode;\n    /**\n     * ID of the progress bar.\n     * @type {?}\n     */\n    MatProgressBar.prototype.progressbarId;\n    /**\n     * Attribute to be used for the `fill` attribute on the internal `rect` element.\n     * @type {?}\n     */\n    MatProgressBar.prototype._rectangleFillValue;\n    /** @type {?} */\n    MatProgressBar.prototype._elementRef;\n    /**\n     * @type {?}\n     * @private\n     */\n    MatProgressBar.prototype._ngZone;\n    /** @type {?} */\n    MatProgressBar.prototype._animationMode;\n}\n/**\n * Clamps a value to be between two numbers, by default 0 and 100.\n * @param {?} v\n * @param {?=} min\n * @param {?=} max\n * @return {?}\n */\nfunction clamp(v, min = 0, max = 100) {\n    return Math.max(min, Math.min(max, v));\n}\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/progress-bar/progress-bar-module.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\nclass MatProgressBarModule {\n}\nMatProgressBarModule.ɵmod = ɵngcc0.ɵɵdefineNgModule({ type: MatProgressBarModule });\nMatProgressBarModule.ɵinj = ɵngcc0.ɵɵdefineInjector({ factory: function MatProgressBarModule_Factory(t) { return new (t || MatProgressBarModule)(); }, imports: [[CommonModule, MatCommonModule], MatCommonModule] });\n(function () { (typeof ngJitMode === \"undefined\" || ngJitMode) && ɵngcc0.ɵɵsetNgModuleScope(MatProgressBarModule, { declarations: function () { return [MatProgressBar]; }, imports: function () { return [CommonModule, MatCommonModule]; }, exports: function () { return [MatProgressBar, MatCommonModule]; } }); })();\n/*@__PURE__*/ (function () { ɵngcc0.ɵsetClassMetadata(MatProgressBarModule, [{\n        type: NgModule,\n        args: [{\n                imports: [CommonModule, MatCommonModule],\n                exports: [MatProgressBar, MatCommonModule],\n                declarations: [MatProgressBar]\n            }]\n    }], null, null); })();\n\n/**\n * @fileoverview added by tsickle\n * Generated from: src/material/progress-bar/public-api.ts\n * @suppress {checkTypes,constantProperty,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc\n */\n\n/**\n * Generated bundle index. Do not edit.\n */\n\nexport { MAT_PROGRESS_BAR_LOCATION, MAT_PROGRESS_BAR_LOCATION_FACTORY, MatProgressBar, MatProgressBarModule };\n\n//# sourceMappingURL=progress-bar.js.map","import {CssTheme} from '@common/core/types/models/CssTheme';\r\n\r\nexport const DEFAULT_LIGHT_COLORS = {\r\n    '--be-primary-lighter': '#3e4a66',\r\n    '--be-primary-default': '#2B3346',\r\n    '--be-primary-darker': '#181c26',\r\n    '--be-accent-default': '#1565C0',\r\n    '--be-accent-lighter': '#B9D1EC',\r\n    '--be-accent-contrast': 'rgba(255, 255, 255, 1)',\r\n    '--be-accent-emphasis': 'rgba(185, 209, 236, 0.1)',\r\n    '--be-background': 'rgb(255, 255, 255)',\r\n    '--be-background-alternative': 'rgb(250, 250, 250)',\r\n    '--be-foreground-base': 'black',\r\n    '--be-text': 'rgba(0, 0, 0, 0.87)',\r\n    '--be-hint-text': 'rgba(0, 0, 0, 0.38)',\r\n    '--be-secondary-text': 'rgba(0, 0, 0, 0.54)',\r\n    '--be-label': 'rgba(0, 0, 0, 0.87)',\r\n    '--be-disabled-button-text': 'rgba(0, 0, 0, 0.26)',\r\n    '--be-divider-lighter': 'rgba(0, 0, 0, 0.07)',\r\n    '--be-divider-default': 'rgba(0, 0, 0, 0.12)',\r\n    '--be-hover': 'rgba(0,0,0,0.04)',\r\n    '--be-selected-button': 'rgb(224, 224, 224)',\r\n    '--be-chip': '#e0e0e0',\r\n    '--be-link': '#3f51b5',\r\n    '--be-backdrop': 'black',\r\n    '--be-raised-button': '#fff',\r\n    '--be-disabled-toggle': 'rgb(238, 238, 238)',\r\n    '--be-disabled-button': 'rgba(0, 0, 0, 0.12)',\r\n};\r\n\r\nexport const DEFAULT_DARK_COLORS = {\r\n    '--be-primary-lighter': '#2a2a2a',\r\n    '--be-primary-default': '#262626',\r\n    '--be-primary-darker': '#181c26',\r\n    '--be-accent-default': '#8AB2E0',\r\n    '--be-accent-lighter': '#B9D1EC',\r\n    '--be-accent-contrast': 'rgba(255, 255, 255, 1)',\r\n    '--be-accent-emphasis': 'rgba(185, 209, 236, 0.1)',\r\n    '--be-foreground-base': '#fff',\r\n    '--be-text': '#fff',\r\n    '--be-hint-text': 'rgba(255, 255, 255, 0.5)',\r\n    '--be-secondary-text': 'rgba(255, 255, 255, 0.7)',\r\n    '--be-label': 'rgba(255, 255, 255, 0.7)',\r\n    '--be-background': '#1D1D1D',\r\n    '--be-background-alternative': '#121212',\r\n    '--be-divider-lighter': 'rgba(255, 255, 255, 0.07)',\r\n    '--be-divider-default': 'rgba(255, 255, 255, 0.12)',\r\n    '--be-disabled-button-text': 'rgba(255, 255, 255, 0.3)',\r\n    '--be-disabled-toggle': '#000',\r\n    '--be-chip': '#616161',\r\n    '--be-hover': 'rgba(255, 255, 255, 0.04)',\r\n    '--be-selected-button': '#212121',\r\n    '--be-disabled-button': 'rgba(255, 255, 255, 0.12)',\r\n    '--be-raised-button': '#424242',\r\n    '--be-backdrop': '#BDBDBD',\r\n    '--be-link': '#c5cae9',\r\n};\r\n\r\nexport const DEFAULT_THEMES: {[key: string]: CssTheme} = {\r\n    light: {\r\n        name: 'light',\r\n        colors: DEFAULT_LIGHT_COLORS,\r\n    },\r\n    dark: {\r\n        name: 'dark',\r\n        is_dark: true,\r\n        colors: DEFAULT_DARK_COLORS,\r\n    },\r\n    blue: {\r\n        name: 'blue',\r\n        colors: {\r\n            ...DEFAULT_LIGHT_COLORS,\r\n            '--be-primary-default': '#0069c0',\r\n            '--be-primary-lighter': '#2196f3',\r\n            '--be-accent-default': '#009688',\r\n            '--be-accent-lighter': '#52c7b8',\r\n        }\r\n    },\r\n    orange: {\r\n        name: 'orange',\r\n        colors: {\r\n            ...DEFAULT_LIGHT_COLORS,\r\n            '--be-primary-default': '#e53935',\r\n            '--be-primary-lighter': '#ff6f60',\r\n            '--be-accent-default': '#e53935',\r\n            '--be-accent-lighter': '#ff6f60',\r\n        }\r\n    },\r\n};\r\n","/*!\n * css-vars-ponyfill\n * v2.3.1\n * https://jhildenbiddle.github.io/css-vars-ponyfill/\n * (c) 2018-2020 John Hildenbiddle <http://hildenbiddle.com>\n * MIT license\n */\nfunction _extends() {\n    _extends = Object.assign || function(target) {\n        for (var i = 1; i < arguments.length; i++) {\n            var source = arguments[i];\n            for (var key in source) {\n                if (Object.prototype.hasOwnProperty.call(source, key)) {\n                    target[key] = source[key];\n                }\n            }\n        }\n        return target;\n    };\n    return _extends.apply(this, arguments);\n}\n\nfunction _toConsumableArray(arr) {\n    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();\n}\n\nfunction _arrayWithoutHoles(arr) {\n    if (Array.isArray(arr)) return _arrayLikeToArray(arr);\n}\n\nfunction _iterableToArray(iter) {\n    if (typeof Symbol !== \"undefined\" && Symbol.iterator in Object(iter)) return Array.from(iter);\n}\n\nfunction _unsupportedIterableToArray(o, minLen) {\n    if (!o) return;\n    if (typeof o === \"string\") return _arrayLikeToArray(o, minLen);\n    var n = Object.prototype.toString.call(o).slice(8, -1);\n    if (n === \"Object\" && o.constructor) n = o.constructor.name;\n    if (n === \"Map\" || n === \"Set\") return Array.from(o);\n    if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);\n}\n\nfunction _arrayLikeToArray(arr, len) {\n    if (len == null || len > arr.length) len = arr.length;\n    for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];\n    return arr2;\n}\n\nfunction _nonIterableSpread() {\n    throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n}\n\n/*!\n * get-css-data\n * v1.8.0\n * https://github.com/jhildenbiddle/get-css-data\n * (c) 2018-2020 John Hildenbiddle <http://hildenbiddle.com>\n * MIT license\n */ function getUrls(urls) {\n    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n    var settings = {\n        mimeType: options.mimeType || null,\n        onBeforeSend: options.onBeforeSend || Function.prototype,\n        onSuccess: options.onSuccess || Function.prototype,\n        onError: options.onError || Function.prototype,\n        onComplete: options.onComplete || Function.prototype\n    };\n    var urlArray = Array.isArray(urls) ? urls : [ urls ];\n    var urlQueue = Array.apply(null, Array(urlArray.length)).map((function(x) {\n        return null;\n    }));\n    function isValidCss() {\n        var cssText = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : \"\";\n        var isHTML = cssText.trim().charAt(0) === \"<\";\n        return !isHTML;\n    }\n    function onError(xhr, urlIndex) {\n        settings.onError(xhr, urlArray[urlIndex], urlIndex);\n    }\n    function onSuccess(responseText, urlIndex) {\n        var returnVal = settings.onSuccess(responseText, urlArray[urlIndex], urlIndex);\n        responseText = returnVal === false ? \"\" : returnVal || responseText;\n        urlQueue[urlIndex] = responseText;\n        if (urlQueue.indexOf(null) === -1) {\n            settings.onComplete(urlQueue);\n        }\n    }\n    var parser = document.createElement(\"a\");\n    urlArray.forEach((function(url, i) {\n        parser.setAttribute(\"href\", url);\n        parser.href = String(parser.href);\n        var isIElte9 = Boolean(document.all && !window.atob);\n        var isIElte9CORS = isIElte9 && parser.host.split(\":\")[0] !== location.host.split(\":\")[0];\n        if (isIElte9CORS) {\n            var isSameProtocol = parser.protocol === location.protocol;\n            if (isSameProtocol) {\n                var xdr = new XDomainRequest;\n                xdr.open(\"GET\", url);\n                xdr.timeout = 0;\n                xdr.onprogress = Function.prototype;\n                xdr.ontimeout = Function.prototype;\n                xdr.onload = function() {\n                    if (isValidCss(xdr.responseText)) {\n                        onSuccess(xdr.responseText, i);\n                    } else {\n                        onError(xdr, i);\n                    }\n                };\n                xdr.onerror = function(err) {\n                    onError(xdr, i);\n                };\n                setTimeout((function() {\n                    xdr.send();\n                }), 0);\n            } else {\n                console.warn(\"Internet Explorer 9 Cross-Origin (CORS) requests must use the same protocol (\".concat(url, \")\"));\n                onError(null, i);\n            }\n        } else {\n            var xhr = new XMLHttpRequest;\n            xhr.open(\"GET\", url);\n            if (settings.mimeType && xhr.overrideMimeType) {\n                xhr.overrideMimeType(settings.mimeType);\n            }\n            settings.onBeforeSend(xhr, url, i);\n            xhr.onreadystatechange = function() {\n                if (xhr.readyState === 4) {\n                    if (xhr.status === 200 && isValidCss(xhr.responseText)) {\n                        onSuccess(xhr.responseText, i);\n                    } else {\n                        onError(xhr, i);\n                    }\n                }\n            };\n            xhr.send();\n        }\n    }));\n}\n\n/**\n * Gets CSS data from <style> and <link> nodes (including @imports), then\n * returns data in order processed by DOM. Allows specifying nodes to\n * include/exclude and filtering CSS data using RegEx.\n *\n * @preserve\n * @param {object}   [options] The options object\n * @param {object}   [options.rootElement=document] Root element to traverse for\n *                   <link> and <style> nodes.\n * @param {string}   [options.include] CSS selector matching <link> and <style>\n *                   nodes to include\n * @param {string}   [options.exclude] CSS selector matching <link> and <style>\n *                   nodes to exclude\n * @param {object}   [options.filter] Regular expression used to filter node CSS\n *                   data. Each block of CSS data is tested against the filter,\n *                   and only matching data is included.\n * @param {boolean}  [options.skipDisabled=true] Determines if disabled\n *                   stylesheets will be skipped while collecting CSS data.\n * @param {boolean}  [options.useCSSOM=false] Determines if CSS data will be\n *                   collected from a stylesheet's runtime values instead of its\n *                   text content. This is required to get accurate CSS data\n *                   when a stylesheet has been modified using the deleteRule()\n *                   or insertRule() methods because these modifications will\n *                   not be reflected in the stylesheet's text content.\n * @param {function} [options.onBeforeSend] Callback before XHR is sent. Passes\n *                   1) the XHR object, 2) source node reference, and 3) the\n *                   source URL as arguments.\n * @param {function} [options.onSuccess] Callback on each CSS node read. Passes\n *                   1) CSS text, 2) source node reference, and 3) the source\n *                   URL as arguments.\n * @param {function} [options.onError] Callback on each error. Passes 1) the XHR\n *                   object for inspection, 2) soure node reference, and 3) the\n *                   source URL that failed (either a <link> href or an @import)\n *                   as arguments\n * @param {function} [options.onComplete] Callback after all nodes have been\n *                   processed. Passes 1) concatenated CSS text, 2) an array of\n *                   CSS text in DOM order, and 3) an array of nodes in DOM\n *                   order as arguments.\n *\n * @example\n *\n *   getCssData({\n *     rootElement : document,\n *     include     : 'style,link[rel=\"stylesheet\"]',\n *     exclude     : '[href=\"skip.css\"]',\n *     filter      : /red/,\n *     skipDisabled: true,\n *     useCSSOM    : false,\n *     onBeforeSend(xhr, node, url) {\n *       // ...\n *     }\n *     onSuccess(cssText, node, url) {\n *       // ...\n *     }\n *     onError(xhr, node, url) {\n *       // ...\n *     },\n *     onComplete(cssText, cssArray, nodeArray) {\n *       // ...\n *     }\n *   });\n */ function getCssData(options) {\n    var regex = {\n        cssComments: /\\/\\*[\\s\\S]+?\\*\\//g,\n        cssImports: /(?:@import\\s*)(?:url\\(\\s*)?(?:['\"])([^'\"]*)(?:['\"])(?:\\s*\\))?(?:[^;]*;)/g\n    };\n    var settings = {\n        rootElement: options.rootElement || document,\n        include: options.include || 'style,link[rel=\"stylesheet\"]',\n        exclude: options.exclude || null,\n        filter: options.filter || null,\n        skipDisabled: options.skipDisabled !== false,\n        useCSSOM: options.useCSSOM || false,\n        onBeforeSend: options.onBeforeSend || Function.prototype,\n        onSuccess: options.onSuccess || Function.prototype,\n        onError: options.onError || Function.prototype,\n        onComplete: options.onComplete || Function.prototype\n    };\n    var sourceNodes = Array.apply(null, settings.rootElement.querySelectorAll(settings.include)).filter((function(node) {\n        return !matchesSelector(node, settings.exclude);\n    }));\n    var cssArray = Array.apply(null, Array(sourceNodes.length)).map((function(x) {\n        return null;\n    }));\n    function handleComplete() {\n        var isComplete = cssArray.indexOf(null) === -1;\n        if (isComplete) {\n            var cssText = cssArray.join(\"\");\n            settings.onComplete(cssText, cssArray, sourceNodes);\n        }\n    }\n    function handleSuccess(cssText, cssIndex, node, sourceUrl) {\n        var returnVal = settings.onSuccess(cssText, node, sourceUrl);\n        cssText = returnVal !== undefined && Boolean(returnVal) === false ? \"\" : returnVal || cssText;\n        resolveImports(cssText, node, sourceUrl, (function(resolvedCssText, errorData) {\n            if (cssArray[cssIndex] === null) {\n                errorData.forEach((function(data) {\n                    return settings.onError(data.xhr, node, data.url);\n                }));\n                if (!settings.filter || settings.filter.test(resolvedCssText)) {\n                    cssArray[cssIndex] = resolvedCssText;\n                } else {\n                    cssArray[cssIndex] = \"\";\n                }\n                handleComplete();\n            }\n        }));\n    }\n    function parseImportData(cssText, baseUrl) {\n        var ignoreRules = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];\n        var importData = {};\n        importData.rules = (cssText.replace(regex.cssComments, \"\").match(regex.cssImports) || []).filter((function(rule) {\n            return ignoreRules.indexOf(rule) === -1;\n        }));\n        importData.urls = importData.rules.map((function(rule) {\n            return rule.replace(regex.cssImports, \"$1\");\n        }));\n        importData.absoluteUrls = importData.urls.map((function(url) {\n            return getFullUrl(url, baseUrl);\n        }));\n        importData.absoluteRules = importData.rules.map((function(rule, i) {\n            var oldUrl = importData.urls[i];\n            var newUrl = getFullUrl(importData.absoluteUrls[i], baseUrl);\n            return rule.replace(oldUrl, newUrl);\n        }));\n        return importData;\n    }\n    function resolveImports(cssText, node, baseUrl, callbackFn) {\n        var __errorData = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : [];\n        var __errorRules = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : [];\n        var importData = parseImportData(cssText, baseUrl, __errorRules);\n        if (importData.rules.length) {\n            getUrls(importData.absoluteUrls, {\n                onBeforeSend: function onBeforeSend(xhr, url, urlIndex) {\n                    settings.onBeforeSend(xhr, node, url);\n                },\n                onSuccess: function onSuccess(cssText, url, urlIndex) {\n                    var returnVal = settings.onSuccess(cssText, node, url);\n                    cssText = returnVal === false ? \"\" : returnVal || cssText;\n                    var responseImportData = parseImportData(cssText, url, __errorRules);\n                    responseImportData.rules.forEach((function(rule, i) {\n                        cssText = cssText.replace(rule, responseImportData.absoluteRules[i]);\n                    }));\n                    return cssText;\n                },\n                onError: function onError(xhr, url, urlIndex) {\n                    __errorData.push({\n                        xhr: xhr,\n                        url: url\n                    });\n                    __errorRules.push(importData.rules[urlIndex]);\n                    resolveImports(cssText, node, baseUrl, callbackFn, __errorData, __errorRules);\n                },\n                onComplete: function onComplete(responseArray) {\n                    responseArray.forEach((function(importText, i) {\n                        cssText = cssText.replace(importData.rules[i], importText);\n                    }));\n                    resolveImports(cssText, node, baseUrl, callbackFn, __errorData, __errorRules);\n                }\n            });\n        } else {\n            callbackFn(cssText, __errorData);\n        }\n    }\n    if (sourceNodes.length) {\n        sourceNodes.forEach((function(node, i) {\n            var linkHref = node.getAttribute(\"href\");\n            var linkRel = node.getAttribute(\"rel\");\n            var isLink = node.nodeName === \"LINK\" && linkHref && linkRel && linkRel.toLowerCase().indexOf(\"stylesheet\") !== -1;\n            var isSkip = settings.skipDisabled === false ? false : node.disabled;\n            var isStyle = node.nodeName === \"STYLE\";\n            if (isLink && !isSkip) {\n                getUrls(linkHref, {\n                    mimeType: \"text/css\",\n                    onBeforeSend: function onBeforeSend(xhr, url, urlIndex) {\n                        settings.onBeforeSend(xhr, node, url);\n                    },\n                    onSuccess: function onSuccess(cssText, url, urlIndex) {\n                        var sourceUrl = getFullUrl(linkHref);\n                        handleSuccess(cssText, i, node, sourceUrl);\n                    },\n                    onError: function onError(xhr, url, urlIndex) {\n                        cssArray[i] = \"\";\n                        settings.onError(xhr, node, url);\n                        handleComplete();\n                    }\n                });\n            } else if (isStyle && !isSkip) {\n                var cssText = node.textContent;\n                if (settings.useCSSOM) {\n                    cssText = Array.apply(null, node.sheet.cssRules).map((function(rule) {\n                        return rule.cssText;\n                    })).join(\"\");\n                }\n                handleSuccess(cssText, i, node, location.href);\n            } else {\n                cssArray[i] = \"\";\n                handleComplete();\n            }\n        }));\n    } else {\n        settings.onComplete(\"\", []);\n    }\n}\n\nfunction getFullUrl(url, base) {\n    var d = document.implementation.createHTMLDocument(\"\");\n    var b = d.createElement(\"base\");\n    var a = d.createElement(\"a\");\n    d.head.appendChild(b);\n    d.body.appendChild(a);\n    b.href = base || document.baseURI || (document.querySelector(\"base\") || {}).href || location.href;\n    a.href = url;\n    return a.href;\n}\n\nfunction matchesSelector(elm, selector) {\n    var matches = elm.matches || elm.matchesSelector || elm.webkitMatchesSelector || elm.mozMatchesSelector || elm.msMatchesSelector || elm.oMatchesSelector;\n    return matches.call(elm, selector);\n}\n\nvar balancedMatch = balanced;\n\nfunction balanced(a, b, str) {\n    if (a instanceof RegExp) a = maybeMatch(a, str);\n    if (b instanceof RegExp) b = maybeMatch(b, str);\n    var r = range(a, b, str);\n    return r && {\n        start: r[0],\n        end: r[1],\n        pre: str.slice(0, r[0]),\n        body: str.slice(r[0] + a.length, r[1]),\n        post: str.slice(r[1] + b.length)\n    };\n}\n\nfunction maybeMatch(reg, str) {\n    var m = str.match(reg);\n    return m ? m[0] : null;\n}\n\nbalanced.range = range;\n\nfunction range(a, b, str) {\n    var begs, beg, left, right, result;\n    var ai = str.indexOf(a);\n    var bi = str.indexOf(b, ai + 1);\n    var i = ai;\n    if (ai >= 0 && bi > 0) {\n        begs = [];\n        left = str.length;\n        while (i >= 0 && !result) {\n            if (i == ai) {\n                begs.push(i);\n                ai = str.indexOf(a, i + 1);\n            } else if (begs.length == 1) {\n                result = [ begs.pop(), bi ];\n            } else {\n                beg = begs.pop();\n                if (beg < left) {\n                    left = beg;\n                    right = bi;\n                }\n                bi = str.indexOf(b, i + 1);\n            }\n            i = ai < bi && ai >= 0 ? ai : bi;\n        }\n        if (begs.length) {\n            result = [ left, right ];\n        }\n    }\n    return result;\n}\n\nfunction parseCss(css) {\n    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n    var defaults = {\n        preserveStatic: true,\n        removeComments: false\n    };\n    var settings = _extends({}, defaults, options);\n    var errors = [];\n    function error(msg) {\n        throw new Error(\"CSS parse error: \".concat(msg));\n    }\n    function match(re) {\n        var m = re.exec(css);\n        if (m) {\n            css = css.slice(m[0].length);\n            return m;\n        }\n    }\n    function open() {\n        return match(/^{\\s*/);\n    }\n    function close() {\n        return match(/^}/);\n    }\n    function whitespace() {\n        match(/^\\s*/);\n    }\n    function comment() {\n        whitespace();\n        if (css[0] !== \"/\" || css[1] !== \"*\") {\n            return;\n        }\n        var i = 2;\n        while (css[i] && (css[i] !== \"*\" || css[i + 1] !== \"/\")) {\n            i++;\n        }\n        if (!css[i]) {\n            return error(\"end of comment is missing\");\n        }\n        var str = css.slice(2, i);\n        css = css.slice(i + 2);\n        return {\n            type: \"comment\",\n            comment: str\n        };\n    }\n    function comments() {\n        var cmnts = [];\n        var c;\n        while (c = comment()) {\n            cmnts.push(c);\n        }\n        return settings.removeComments ? [] : cmnts;\n    }\n    function selector() {\n        whitespace();\n        while (css[0] === \"}\") {\n            error(\"extra closing bracket\");\n        }\n        var m = match(/^((\"(?:\\\\\"|[^\"])*\"|'(?:\\\\'|[^'])*'|[^{])+)/);\n        if (m) {\n            return m[0].trim().replace(/\\/\\*([^*]|[\\r\\n]|(\\*+([^*/]|[\\r\\n])))*\\*\\/+/g, \"\").replace(/\"(?:\\\\\"|[^\"])*\"|'(?:\\\\'|[^'])*'/g, (function(m) {\n                return m.replace(/,/g, \"‌\");\n            })).split(/\\s*(?![^(]*\\)),\\s*/).map((function(s) {\n                return s.replace(/\\u200C/g, \",\");\n            }));\n        }\n    }\n    function declaration() {\n        if (css[0] === \"@\") {\n            return at_rule();\n        }\n        match(/^([;\\s]*)+/);\n        var comment_regexp = /\\/\\*[^*]*\\*+([^/*][^*]*\\*+)*\\//g;\n        var prop = match(/^(\\*?[-#/*\\\\\\w]+(\\[[0-9a-z_-]+\\])?)\\s*/);\n        if (!prop) {\n            return;\n        }\n        prop = prop[0].trim();\n        if (!match(/^:\\s*/)) {\n            return error(\"property missing ':'\");\n        }\n        var val = match(/^((?:\\/\\*.*?\\*\\/|'(?:\\\\'|.)*?'|\"(?:\\\\\"|.)*?\"|\\((\\s*'(?:\\\\'|.)*?'|\"(?:\\\\\"|.)*?\"|[^)]*?)\\s*\\)|[^};])+)/);\n        var ret = {\n            type: \"declaration\",\n            property: prop.replace(comment_regexp, \"\"),\n            value: val ? val[0].replace(comment_regexp, \"\").trim() : \"\"\n        };\n        match(/^[;\\s]*/);\n        return ret;\n    }\n    function declarations() {\n        if (!open()) {\n            return error(\"missing '{'\");\n        }\n        var d;\n        var decls = comments();\n        while (d = declaration()) {\n            decls.push(d);\n            decls = decls.concat(comments());\n        }\n        if (!close()) {\n            return error(\"missing '}'\");\n        }\n        return decls;\n    }\n    function keyframe() {\n        whitespace();\n        var vals = [];\n        var m;\n        while (m = match(/^((\\d+\\.\\d+|\\.\\d+|\\d+)%?|[a-z]+)\\s*/)) {\n            vals.push(m[1]);\n            match(/^,\\s*/);\n        }\n        if (vals.length) {\n            return {\n                type: \"keyframe\",\n                values: vals,\n                declarations: declarations()\n            };\n        }\n    }\n    function at_keyframes() {\n        var m = match(/^@([-\\w]+)?keyframes\\s*/);\n        if (!m) {\n            return;\n        }\n        var vendor = m[1];\n        m = match(/^([-\\w]+)\\s*/);\n        if (!m) {\n            return error(\"@keyframes missing name\");\n        }\n        var name = m[1];\n        if (!open()) {\n            return error(\"@keyframes missing '{'\");\n        }\n        var frame;\n        var frames = comments();\n        while (frame = keyframe()) {\n            frames.push(frame);\n            frames = frames.concat(comments());\n        }\n        if (!close()) {\n            return error(\"@keyframes missing '}'\");\n        }\n        return {\n            type: \"keyframes\",\n            name: name,\n            vendor: vendor,\n            keyframes: frames\n        };\n    }\n    function at_page() {\n        var m = match(/^@page */);\n        if (m) {\n            var sel = selector() || [];\n            return {\n                type: \"page\",\n                selectors: sel,\n                declarations: declarations()\n            };\n        }\n    }\n    function at_page_margin_box() {\n        var m = match(/@(top|bottom|left|right)-(left|center|right|top|middle|bottom)-?(corner)?\\s*/);\n        if (m) {\n            var name = \"\".concat(m[1], \"-\").concat(m[2]) + (m[3] ? \"-\".concat(m[3]) : \"\");\n            return {\n                type: \"page-margin-box\",\n                name: name,\n                declarations: declarations()\n            };\n        }\n    }\n    function at_fontface() {\n        var m = match(/^@font-face\\s*/);\n        if (m) {\n            return {\n                type: \"font-face\",\n                declarations: declarations()\n            };\n        }\n    }\n    function at_supports() {\n        var m = match(/^@supports *([^{]+)/);\n        if (m) {\n            return {\n                type: \"supports\",\n                supports: m[1].trim(),\n                rules: rules()\n            };\n        }\n    }\n    function at_host() {\n        var m = match(/^@host\\s*/);\n        if (m) {\n            return {\n                type: \"host\",\n                rules: rules()\n            };\n        }\n    }\n    function at_media() {\n        var m = match(/^@media([^{]+)*/);\n        if (m) {\n            return {\n                type: \"media\",\n                media: (m[1] || \"\").trim(),\n                rules: rules()\n            };\n        }\n    }\n    function at_custom_m() {\n        var m = match(/^@custom-media\\s+(--[^\\s]+)\\s*([^{;]+);/);\n        if (m) {\n            return {\n                type: \"custom-media\",\n                name: m[1].trim(),\n                media: m[2].trim()\n            };\n        }\n    }\n    function at_document() {\n        var m = match(/^@([-\\w]+)?document *([^{]+)/);\n        if (m) {\n            return {\n                type: \"document\",\n                document: m[2].trim(),\n                vendor: m[1] ? m[1].trim() : null,\n                rules: rules()\n            };\n        }\n    }\n    function at_x() {\n        var m = match(/^@(import|charset|namespace)\\s*([^;]+);/);\n        if (m) {\n            return {\n                type: m[1],\n                name: m[2].trim()\n            };\n        }\n    }\n    function at_rule() {\n        whitespace();\n        if (css[0] === \"@\") {\n            var ret = at_x() || at_fontface() || at_media() || at_keyframes() || at_supports() || at_document() || at_custom_m() || at_host() || at_page() || at_page_margin_box();\n            if (ret && !settings.preserveStatic) {\n                var hasVarFunc = false;\n                if (ret.declarations) {\n                    hasVarFunc = ret.declarations.some((function(decl) {\n                        return /var\\(/.test(decl.value);\n                    }));\n                } else {\n                    var arr = ret.keyframes || ret.rules || [];\n                    hasVarFunc = arr.some((function(obj) {\n                        return (obj.declarations || []).some((function(decl) {\n                            return /var\\(/.test(decl.value);\n                        }));\n                    }));\n                }\n                return hasVarFunc ? ret : {};\n            }\n            return ret;\n        }\n    }\n    function rule() {\n        if (!settings.preserveStatic) {\n            var balancedMatch$1 = balancedMatch(\"{\", \"}\", css);\n            if (balancedMatch$1) {\n                var hasVarDecl = /:(?:root|host)(?![.:#(])/.test(balancedMatch$1.pre) && /--\\S*\\s*:/.test(balancedMatch$1.body);\n                var hasVarFunc = /var\\(/.test(balancedMatch$1.body);\n                if (!hasVarDecl && !hasVarFunc) {\n                    css = css.slice(balancedMatch$1.end + 1);\n                    return {};\n                }\n            }\n        }\n        var sel = selector() || [];\n        var decls = settings.preserveStatic ? declarations() : declarations().filter((function(decl) {\n            var hasVarDecl = sel.some((function(s) {\n                return /:(?:root|host)(?![.:#(])/.test(s);\n            })) && /^--\\S/.test(decl.property);\n            var hasVarFunc = /var\\(/.test(decl.value);\n            return hasVarDecl || hasVarFunc;\n        }));\n        if (!sel.length) {\n            error(\"selector missing\");\n        }\n        return {\n            type: \"rule\",\n            selectors: sel,\n            declarations: decls\n        };\n    }\n    function rules(core) {\n        if (!core && !open()) {\n            return error(\"missing '{'\");\n        }\n        var node;\n        var rules = comments();\n        while (css.length && (core || css[0] !== \"}\") && (node = at_rule() || rule())) {\n            if (node.type) {\n                rules.push(node);\n            }\n            rules = rules.concat(comments());\n        }\n        if (!core && !close()) {\n            return error(\"missing '}'\");\n        }\n        return rules;\n    }\n    return {\n        type: \"stylesheet\",\n        stylesheet: {\n            rules: rules(true),\n            errors: errors\n        }\n    };\n}\n\nfunction parseVars(cssData) {\n    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n    var defaults = {\n        parseHost: false,\n        store: {},\n        onWarning: function onWarning() {}\n    };\n    var settings = _extends({}, defaults, options);\n    var reVarDeclSelectors = new RegExp(\":\".concat(settings.parseHost ? \"host\" : \"root\", \"$\"));\n    if (typeof cssData === \"string\") {\n        cssData = parseCss(cssData, settings);\n    }\n    cssData.stylesheet.rules.forEach((function(rule) {\n        if (rule.type !== \"rule\" || !rule.selectors.some((function(s) {\n            return reVarDeclSelectors.test(s);\n        }))) {\n            return;\n        }\n        rule.declarations.forEach((function(decl, i) {\n            var prop = decl.property;\n            var value = decl.value;\n            if (prop && prop.indexOf(\"--\") === 0) {\n                settings.store[prop] = value;\n            }\n        }));\n    }));\n    return settings.store;\n}\n\nfunction stringifyCss(tree) {\n    var delim = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : \"\";\n    var cb = arguments.length > 2 ? arguments[2] : undefined;\n    var renderMethods = {\n        charset: function charset(node) {\n            return \"@charset \" + node.name + \";\";\n        },\n        comment: function comment(node) {\n            return node.comment.indexOf(\"__CSSVARSPONYFILL\") === 0 ? \"/*\" + node.comment + \"*/\" : \"\";\n        },\n        \"custom-media\": function customMedia(node) {\n            return \"@custom-media \" + node.name + \" \" + node.media + \";\";\n        },\n        declaration: function declaration(node) {\n            return node.property + \":\" + node.value + \";\";\n        },\n        document: function document(node) {\n            return \"@\" + (node.vendor || \"\") + \"document \" + node.document + \"{\" + visit(node.rules) + \"}\";\n        },\n        \"font-face\": function fontFace(node) {\n            return \"@font-face\" + \"{\" + visit(node.declarations) + \"}\";\n        },\n        host: function host(node) {\n            return \"@host\" + \"{\" + visit(node.rules) + \"}\";\n        },\n        import: function _import(node) {\n            return \"@import \" + node.name + \";\";\n        },\n        keyframe: function keyframe(node) {\n            return node.values.join(\",\") + \"{\" + visit(node.declarations) + \"}\";\n        },\n        keyframes: function keyframes(node) {\n            return \"@\" + (node.vendor || \"\") + \"keyframes \" + node.name + \"{\" + visit(node.keyframes) + \"}\";\n        },\n        media: function media(node) {\n            return \"@media \" + node.media + \"{\" + visit(node.rules) + \"}\";\n        },\n        namespace: function namespace(node) {\n            return \"@namespace \" + node.name + \";\";\n        },\n        page: function page(node) {\n            return \"@page \" + (node.selectors.length ? node.selectors.join(\", \") : \"\") + \"{\" + visit(node.declarations) + \"}\";\n        },\n        \"page-margin-box\": function pageMarginBox(node) {\n            return \"@\" + node.name + \"{\" + visit(node.declarations) + \"}\";\n        },\n        rule: function rule(node) {\n            var decls = node.declarations;\n            if (decls.length) {\n                return node.selectors.join(\",\") + \"{\" + visit(decls) + \"}\";\n            }\n        },\n        supports: function supports(node) {\n            return \"@supports \" + node.supports + \"{\" + visit(node.rules) + \"}\";\n        }\n    };\n    function visit(nodes) {\n        var buf = \"\";\n        for (var i = 0; i < nodes.length; i++) {\n            var n = nodes[i];\n            if (cb) {\n                cb(n);\n            }\n            var txt = renderMethods[n.type](n);\n            if (txt) {\n                buf += txt;\n                if (txt.length && n.selectors) {\n                    buf += delim;\n                }\n            }\n        }\n        return buf;\n    }\n    return visit(tree.stylesheet.rules);\n}\n\nfunction walkCss(node, fn) {\n    node.rules.forEach((function(rule) {\n        if (rule.rules) {\n            walkCss(rule, fn);\n            return;\n        }\n        if (rule.keyframes) {\n            rule.keyframes.forEach((function(keyframe) {\n                if (keyframe.type === \"keyframe\") {\n                    fn(keyframe.declarations, rule);\n                }\n            }));\n            return;\n        }\n        if (!rule.declarations) {\n            return;\n        }\n        fn(rule.declarations, node);\n    }));\n}\n\nvar VAR_PROP_IDENTIFIER = \"--\";\n\nvar VAR_FUNC_IDENTIFIER = \"var\";\n\nfunction transformCss(cssData) {\n    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n    var defaults = {\n        preserveStatic: true,\n        preserveVars: false,\n        variables: {},\n        onWarning: function onWarning() {}\n    };\n    var settings = _extends({}, defaults, options);\n    if (typeof cssData === \"string\") {\n        cssData = parseCss(cssData, settings);\n    }\n    walkCss(cssData.stylesheet, (function(declarations, node) {\n        for (var i = 0; i < declarations.length; i++) {\n            var decl = declarations[i];\n            var type = decl.type;\n            var prop = decl.property;\n            var value = decl.value;\n            if (type !== \"declaration\") {\n                continue;\n            }\n            if (!settings.preserveVars && prop && prop.indexOf(VAR_PROP_IDENTIFIER) === 0) {\n                declarations.splice(i, 1);\n                i--;\n                continue;\n            }\n            if (value.indexOf(VAR_FUNC_IDENTIFIER + \"(\") !== -1) {\n                var resolvedValue = resolveValue(value, settings);\n                if (resolvedValue !== decl.value) {\n                    resolvedValue = fixNestedCalc(resolvedValue);\n                    if (!settings.preserveVars) {\n                        decl.value = resolvedValue;\n                    } else {\n                        declarations.splice(i, 0, {\n                            type: type,\n                            property: prop,\n                            value: resolvedValue\n                        });\n                        i++;\n                    }\n                }\n            }\n        }\n    }));\n    return stringifyCss(cssData);\n}\n\nfunction fixNestedCalc(value) {\n    var reCalcVal = /calc\\(([^)]+)\\)/g;\n    (value.match(reCalcVal) || []).forEach((function(match) {\n        var newVal = \"calc\".concat(match.split(\"calc\").join(\"\"));\n        value = value.replace(match, newVal);\n    }));\n    return value;\n}\n\nfunction resolveValue(value) {\n    var settings = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n    var __recursiveFallback = arguments.length > 2 ? arguments[2] : undefined;\n    if (value.indexOf(\"var(\") === -1) {\n        return value;\n    }\n    var valueData = balancedMatch(\"(\", \")\", value);\n    function resolveFunc(value) {\n        var name = value.split(\",\")[0].replace(/[\\s\\n\\t]/g, \"\");\n        var fallback = (value.match(/(?:\\s*,\\s*){1}(.*)?/) || [])[1];\n        var match = Object.prototype.hasOwnProperty.call(settings.variables, name) ? String(settings.variables[name]) : undefined;\n        var replacement = match || (fallback ? String(fallback) : undefined);\n        var unresolvedFallback = __recursiveFallback || value;\n        if (!match) {\n            settings.onWarning('variable \"'.concat(name, '\" is undefined'));\n        }\n        if (replacement && replacement !== \"undefined\" && replacement.length > 0) {\n            return resolveValue(replacement, settings, unresolvedFallback);\n        } else {\n            return \"var(\".concat(unresolvedFallback, \")\");\n        }\n    }\n    if (!valueData) {\n        if (value.indexOf(\"var(\") !== -1) {\n            settings.onWarning('missing closing \")\" in the value \"'.concat(value, '\"'));\n        }\n        return value;\n    } else if (valueData.pre.slice(-3) === \"var\") {\n        var isEmptyVarFunc = valueData.body.trim().length === 0;\n        if (isEmptyVarFunc) {\n            settings.onWarning(\"var() must contain a non-whitespace string\");\n            return value;\n        } else {\n            return valueData.pre.slice(0, -3) + resolveFunc(valueData.body) + resolveValue(valueData.post, settings);\n        }\n    } else {\n        return valueData.pre + \"(\".concat(resolveValue(valueData.body, settings), \")\") + resolveValue(valueData.post, settings);\n    }\n}\n\nvar isBrowser = typeof window !== \"undefined\";\n\nvar isNativeSupport = isBrowser && window.CSS && window.CSS.supports && window.CSS.supports(\"(--a: 0)\");\n\nvar counters = {\n    group: 0,\n    job: 0\n};\n\nvar defaults = {\n    rootElement: isBrowser ? document : null,\n    shadowDOM: false,\n    include: \"style,link[rel=stylesheet]\",\n    exclude: \"\",\n    variables: {},\n    onlyLegacy: true,\n    preserveStatic: true,\n    preserveVars: false,\n    silent: false,\n    updateDOM: true,\n    updateURLs: true,\n    watch: null,\n    onBeforeSend: function onBeforeSend() {},\n    onError: function onError() {},\n    onWarning: function onWarning() {},\n    onSuccess: function onSuccess() {},\n    onComplete: function onComplete() {},\n    onFinally: function onFinally() {}\n};\n\nvar regex = {\n    cssComments: /\\/\\*[\\s\\S]+?\\*\\//g,\n    cssKeyframes: /@(?:-\\w*-)?keyframes/,\n    cssMediaQueries: /@media[^{]+\\{([\\s\\S]+?})\\s*}/g,\n    cssUrls: /url\\((?!['\"]?(?:data|http|\\/\\/):)['\"]?([^'\")]*)['\"]?\\)/g,\n    cssVarDeclRules: /(?::(?:root|host)(?![.:#(])[\\s,]*[^{]*{\\s*[^}]*})/g,\n    cssVarDecls: /(?:[\\s;]*)(-{2}\\w[\\w-]*)(?:\\s*:\\s*)([^;]*);/g,\n    cssVarFunc: /var\\(\\s*--[\\w-]/,\n    cssVars: /(?:(?::(?:root|host)(?![.:#(])[\\s,]*[^{]*{\\s*[^;]*;*\\s*)|(?:var\\(\\s*))(--[^:)]+)(?:\\s*[:)])/\n};\n\nvar variableStore = {\n    dom: {},\n    job: {},\n    user: {}\n};\n\nvar cssVarsIsRunning = false;\n\nvar cssVarsObserver = null;\n\nvar cssVarsSrcNodeCount = 0;\n\nvar debounceTimer = null;\n\nvar isShadowDOMReady = false;\n\n/**\n * Fetches, parses, and transforms CSS custom properties from specified\n * <style> and <link> elements into static values, then appends a new <style>\n * element with static values to the DOM to provide CSS custom property\n * compatibility for legacy browsers. Also provides a single interface for\n * live updates of runtime values in both modern and legacy browsers.\n *\n * @preserve\n * @param {object}   [options] Options object\n * @param {object}   [options.rootElement=document] Root element to traverse for\n *                   <link> and <style> nodes\n * @param {boolean}  [options.shadowDOM=false] Determines if shadow DOM <link>\n *                   and <style> nodes will be processed.\n * @param {string}   [options.include=\"style,link[rel=stylesheet]\"] CSS selector\n *                   matching <link re=\"stylesheet\"> and <style> nodes to\n *                   process\n * @param {string}   [options.exclude] CSS selector matching <link\n *                   rel=\"stylehseet\"> and <style> nodes to exclude from those\n *                   matches by options.include\n * @param {object}   [options.variables] A map of custom property name/value\n *                   pairs. Property names can omit or include the leading\n *                   double-hyphen (—), and values specified will override\n *                   previous values\n * @param {boolean}  [options.onlyLegacy=true] Determines if the ponyfill will\n *                   only generate legacy-compatible CSS in browsers that lack\n *                   native support (i.e., legacy browsers)\n * @param {boolean}  [options.preserveStatic=true] Determines if CSS\n *                   declarations that do not reference a custom property will\n *                   be preserved in the transformed CSS\n * @param {boolean}  [options.preserveVars=false] Determines if CSS custom\n *                   property declarations will be preserved in the transformed\n *                   CSS\n * @param {boolean}  [options.silent=false] Determines if warning and error\n *                   messages will be displayed on the console\n * @param {boolean}  [options.updateDOM=true] Determines if the ponyfill will\n *                   update the DOM after processing CSS custom properties\n * @param {boolean}  [options.updateURLs=true] Determines if the ponyfill will\n *                   convert relative url() paths to absolute urls\n * @param {boolean}  [options.watch=false] Determines if a MutationObserver will\n *                   be created that will execute the ponyfill when a <link> or\n *                   <style> DOM mutation is observed\n * @param {function} [options.onBeforeSend] Callback before XHR is sent. Passes\n *                   1) the XHR object, 2) source node reference, and 3) the\n *                   source URL as arguments\n * @param {function} [options.onError] Callback after a CSS parsing error has\n *                   occurred or an XHR request has failed. Passes 1) an error\n *                   message, and 2) source node reference, 3) xhr, and 4 url as\n *                   arguments.\n * @param {function} [options.onWarning] Callback after each CSS parsing warning\n *                   has occurred. Passes 1) a warning message as an argument.\n * @param {function} [options.onSuccess] Callback after CSS data has been\n *                   collected from each node and before CSS custom properties\n *                   have been transformed. Allows modifying the CSS data before\n *                   it is transformed by returning any string value (or false\n *                   to skip). Passes 1) CSS text, 2) source node reference, and\n *                   3) the source URL as arguments.\n * @param {function} [options.onComplete] Callback after all CSS has been\n *                   processed, legacy-compatible CSS has been generated, and\n *                   (optionally) the DOM has been updated. Passes 1) a CSS\n *                   string with CSS variable values resolved, 2) an array of\n *                   output <style> node references that have been appended to\n *                   the DOM, 3) an object containing all custom properies names\n *                   and values, and 4) the ponyfill execution time in\n *                   milliseconds.\n * @param {function} [options.onFinally] Callback in modern and legacy browsers\n *                   after the ponyfill has finished all tasks. Passes 1) a\n *                   boolean indicating if the last ponyfill call resulted in a\n *                   style change, 2) a boolean indicating if the current\n *                   browser provides native support for CSS custom properties,\n *                   and 3) the ponyfill execution time in milliseconds.\n * @example\n *\n *   cssVars({\n *     rootElement   : document,\n *     shadowDOM     : false,\n *     include       : 'style,link[rel=\"stylesheet\"]',\n *     exclude       : '',\n *     variables     : {},\n *     onlyLegacy    : true,\n *     preserveStatic: true,\n *     preserveVars  : false,\n *     silent        : false,\n *     updateDOM     : true,\n *     updateURLs    : true,\n *     watch         : false,\n *     onBeforeSend(xhr, node, url) {},\n *     onError(message, node, xhr, url) {},\n *     onWarning(message) {},\n *     onSuccess(cssText, node, url) {},\n *     onComplete(cssText, styleNode, cssVariables, benchmark) {},\n *     onFinally(hasChanged, hasNativeSupport, benchmark)\n *   });\n */ function cssVars() {\n    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n    var msgPrefix = \"cssVars(): \";\n    var settings = _extends({}, defaults, options);\n    function handleError(message, sourceNode, xhr, url) {\n        if (!settings.silent && window.console) {\n            console.error(\"\".concat(msgPrefix).concat(message, \"\\n\"), sourceNode);\n        }\n        settings.onError(message, sourceNode, xhr, url);\n    }\n    function handleWarning(message) {\n        if (!settings.silent && window.console) {\n            console.warn(\"\".concat(msgPrefix).concat(message));\n        }\n        settings.onWarning(message);\n    }\n    function handleFinally(hasChanged) {\n        settings.onFinally(Boolean(hasChanged), isNativeSupport, getTimeStamp() - settings.__benchmark);\n    }\n    if (!isBrowser) {\n        return;\n    }\n    if (settings.watch) {\n        settings.watch = defaults.watch;\n        addMutationObserver(settings);\n        cssVars(settings);\n        return;\n    } else if (settings.watch === false && cssVarsObserver) {\n        cssVarsObserver.disconnect();\n        cssVarsObserver = null;\n    }\n    if (!settings.__benchmark) {\n        if (cssVarsIsRunning === settings.rootElement) {\n            cssVarsDebounced(options);\n            return;\n        }\n        settings.__benchmark = getTimeStamp();\n        settings.exclude = [ cssVarsObserver ? '[data-cssvars]:not([data-cssvars=\"\"])' : '[data-cssvars=\"out\"]', settings.exclude ].filter((function(selector) {\n            return selector;\n        })).join(\",\");\n        settings.variables = fixVarNames(settings.variables);\n        if (!cssVarsObserver) {\n            var outNodes = Array.apply(null, settings.rootElement.querySelectorAll('[data-cssvars=\"out\"]'));\n            outNodes.forEach((function(outNode) {\n                var dataGroup = outNode.getAttribute(\"data-cssvars-group\");\n                var srcNode = dataGroup ? settings.rootElement.querySelector('[data-cssvars=\"src\"][data-cssvars-group=\"'.concat(dataGroup, '\"]')) : null;\n                if (!srcNode) {\n                    outNode.parentNode.removeChild(outNode);\n                }\n            }));\n            if (cssVarsSrcNodeCount) {\n                var srcNodes = settings.rootElement.querySelectorAll('[data-cssvars]:not([data-cssvars=\"out\"])');\n                if (srcNodes.length < cssVarsSrcNodeCount) {\n                    cssVarsSrcNodeCount = srcNodes.length;\n                    variableStore.dom = {};\n                }\n            }\n        }\n    }\n    if (document.readyState !== \"loading\") {\n        if (isNativeSupport && settings.onlyLegacy) {\n            var hasVarChange = false;\n            if (settings.updateDOM) {\n                var targetElm = settings.rootElement.host || (settings.rootElement === document ? document.documentElement : settings.rootElement);\n                Object.keys(settings.variables).forEach((function(key) {\n                    var varValue = settings.variables[key];\n                    hasVarChange = hasVarChange || varValue !== getComputedStyle(targetElm).getPropertyValue(key);\n                    targetElm.style.setProperty(key, varValue);\n                }));\n            }\n            handleFinally(hasVarChange);\n        } else if (!isShadowDOMReady && (settings.shadowDOM || settings.rootElement.shadowRoot || settings.rootElement.host)) {\n            getCssData({\n                rootElement: defaults.rootElement,\n                include: defaults.include,\n                exclude: settings.exclude,\n                skipDisabled: false,\n                onSuccess: function onSuccess(cssText, node, url) {\n                    cssText = cssText.replace(regex.cssComments, \"\").replace(regex.cssMediaQueries, \"\");\n                    cssText = (cssText.match(regex.cssVarDeclRules) || []).join(\"\");\n                    return cssText || false;\n                },\n                onComplete: function onComplete(cssText, cssArray, nodeArray) {\n                    parseVars(cssText, {\n                        store: variableStore.dom,\n                        onWarning: handleWarning\n                    });\n                    isShadowDOMReady = true;\n                    cssVars(settings);\n                }\n            });\n        } else {\n            cssVarsIsRunning = settings.rootElement;\n            getCssData({\n                rootElement: settings.rootElement,\n                include: settings.include,\n                exclude: settings.exclude,\n                skipDisabled: false,\n                onBeforeSend: settings.onBeforeSend,\n                onError: function onError(xhr, node, url) {\n                    var responseUrl = xhr.responseURL || getFullUrl$1(url, location.href);\n                    var statusText = xhr.statusText ? \"(\".concat(xhr.statusText, \")\") : \"Unspecified Error\" + (xhr.status === 0 ? \" (possibly CORS related)\" : \"\");\n                    var errorMsg = \"CSS XHR Error: \".concat(responseUrl, \" \").concat(xhr.status, \" \").concat(statusText);\n                    handleError(errorMsg, node, xhr, responseUrl);\n                },\n                onSuccess: function onSuccess(cssText, node, url) {\n                    var returnVal = settings.onSuccess(cssText, node, url);\n                    cssText = returnVal !== undefined && Boolean(returnVal) === false ? \"\" : returnVal || cssText;\n                    if (settings.updateURLs) {\n                        cssText = fixRelativeCssUrls(cssText, url);\n                    }\n                    return cssText;\n                },\n                onComplete: function onComplete(cssText, cssArray) {\n                    var nodeArray = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];\n                    var currentVars = _extends({}, variableStore.dom, variableStore.user);\n                    var hasVarChange = false;\n                    variableStore.job = {};\n                    nodeArray.forEach((function(node, i) {\n                        var nodeCSS = cssArray[i];\n                        if (regex.cssVars.test(nodeCSS)) {\n                            try {\n                                var cssTree = parseCss(nodeCSS, {\n                                    preserveStatic: settings.preserveStatic,\n                                    removeComments: true\n                                });\n                                parseVars(cssTree, {\n                                    parseHost: Boolean(settings.rootElement.host),\n                                    store: variableStore.dom,\n                                    onWarning: handleWarning\n                                });\n                                node.__cssVars = {\n                                    tree: cssTree\n                                };\n                            } catch (err) {\n                                handleError(err.message, node);\n                            }\n                        }\n                    }));\n                    _extends(variableStore.job, variableStore.dom);\n                    if (settings.updateDOM) {\n                        _extends(variableStore.user, settings.variables);\n                        _extends(variableStore.job, variableStore.user);\n                    } else {\n                        _extends(variableStore.job, variableStore.user, settings.variables);\n                        _extends(currentVars, settings.variables);\n                    }\n                    hasVarChange = counters.job > 0 && Boolean(Object.keys(variableStore.job).length > Object.keys(currentVars).length || Boolean(Object.keys(currentVars).length && Object.keys(variableStore.job).some((function(key) {\n                        return variableStore.job[key] !== currentVars[key];\n                    }))));\n                    if (hasVarChange) {\n                        resetCssNodes(settings.rootElement);\n                        cssVars(settings);\n                    } else {\n                        var outCssArray = [];\n                        var outNodeArray = [];\n                        var hasKeyframesWithVars = false;\n                        if (settings.updateDOM) {\n                            counters.job++;\n                        }\n                        nodeArray.forEach((function(node, i) {\n                            var isSkip = !node.__cssVars;\n                            if (node.__cssVars) {\n                                try {\n                                    transformCss(node.__cssVars.tree, _extends({}, settings, {\n                                        variables: variableStore.job,\n                                        onWarning: handleWarning\n                                    }));\n                                    var outCss = stringifyCss(node.__cssVars.tree);\n                                    if (settings.updateDOM) {\n                                        var nodeCSS = cssArray[i];\n                                        var hasCSSVarFunc = regex.cssVarFunc.test(nodeCSS);\n                                        if (!node.getAttribute(\"data-cssvars\")) {\n                                            node.setAttribute(\"data-cssvars\", \"src\");\n                                        }\n                                        if (outCss.length && hasCSSVarFunc) {\n                                            var dataGroup = node.getAttribute(\"data-cssvars-group\") || ++counters.group;\n                                            var outCssNoSpaces = outCss.replace(/\\s/g, \"\");\n                                            var outNode = settings.rootElement.querySelector('[data-cssvars=\"out\"][data-cssvars-group=\"'.concat(dataGroup, '\"]')) || document.createElement(\"style\");\n                                            hasKeyframesWithVars = hasKeyframesWithVars || regex.cssKeyframes.test(outCss);\n                                            if (settings.preserveStatic) {\n                                                node.sheet.disabled = true;\n                                            }\n                                            if (!outNode.hasAttribute(\"data-cssvars\")) {\n                                                outNode.setAttribute(\"data-cssvars\", \"out\");\n                                            }\n                                            if (outCssNoSpaces === node.textContent.replace(/\\s/g, \"\")) {\n                                                isSkip = true;\n                                                if (outNode && outNode.parentNode) {\n                                                    node.removeAttribute(\"data-cssvars-group\");\n                                                    outNode.parentNode.removeChild(outNode);\n                                                }\n                                            } else if (outCssNoSpaces !== outNode.textContent.replace(/\\s/g, \"\")) {\n                                                [ node, outNode ].forEach((function(n) {\n                                                    n.setAttribute(\"data-cssvars-job\", counters.job);\n                                                    n.setAttribute(\"data-cssvars-group\", dataGroup);\n                                                }));\n                                                outNode.textContent = outCss;\n                                                outCssArray.push(outCss);\n                                                outNodeArray.push(outNode);\n                                                if (!outNode.parentNode) {\n                                                    node.parentNode.insertBefore(outNode, node.nextSibling);\n                                                }\n                                            }\n                                        }\n                                    } else {\n                                        if (node.textContent.replace(/\\s/g, \"\") !== outCss) {\n                                            outCssArray.push(outCss);\n                                        }\n                                    }\n                                } catch (err) {\n                                    handleError(err.message, node);\n                                }\n                            }\n                            if (isSkip) {\n                                node.setAttribute(\"data-cssvars\", \"skip\");\n                            }\n                            if (!node.hasAttribute(\"data-cssvars-job\")) {\n                                node.setAttribute(\"data-cssvars-job\", counters.job);\n                            }\n                        }));\n                        cssVarsSrcNodeCount = settings.rootElement.querySelectorAll('[data-cssvars]:not([data-cssvars=\"out\"])').length;\n                        if (settings.shadowDOM) {\n                            var elms = [ settings.rootElement ].concat(_toConsumableArray(settings.rootElement.querySelectorAll(\"*\")));\n                            for (var i = 0, elm; elm = elms[i]; ++i) {\n                                if (elm.shadowRoot && elm.shadowRoot.querySelector(\"style\")) {\n                                    var shadowSettings = _extends({}, settings, {\n                                        rootElement: elm.shadowRoot\n                                    });\n                                    cssVars(shadowSettings);\n                                }\n                            }\n                        }\n                        if (settings.updateDOM && hasKeyframesWithVars) {\n                            fixKeyframes(settings.rootElement);\n                        }\n                        cssVarsIsRunning = false;\n                        settings.onComplete(outCssArray.join(\"\"), outNodeArray, JSON.parse(JSON.stringify(variableStore.job)), getTimeStamp() - settings.__benchmark);\n                        handleFinally(outNodeArray.length);\n                    }\n                }\n            });\n        }\n    } else {\n        document.addEventListener(\"DOMContentLoaded\", (function init(evt) {\n            cssVars(options);\n            document.removeEventListener(\"DOMContentLoaded\", init);\n        }));\n    }\n}\n\ncssVars.reset = function() {\n    counters.job = 0;\n    counters.group = 0;\n    cssVarsIsRunning = false;\n    if (cssVarsObserver) {\n        cssVarsObserver.disconnect();\n        cssVarsObserver = null;\n    }\n    cssVarsSrcNodeCount = 0;\n    debounceTimer = null;\n    isShadowDOMReady = false;\n    for (var prop in variableStore) {\n        variableStore[prop] = {};\n    }\n};\n\nfunction addMutationObserver(settings) {\n    function isDisabled(node) {\n        var isDisabledAttr = node.hasAttribute(\"disabled\");\n        var isDisabledSheet = (node.sheet || {}).disabled;\n        return isDisabledAttr || isDisabledSheet;\n    }\n    function isLink(node) {\n        var isStylesheet = node.tagName === \"LINK\" && (node.getAttribute(\"rel\") || \"\").indexOf(\"stylesheet\") !== -1;\n        return isStylesheet && !isDisabled(node);\n    }\n    function isStyle(node) {\n        return node.tagName === \"STYLE\" && !isDisabled(node);\n    }\n    function isValidAddMutation(mutationNodes) {\n        return Array.apply(null, mutationNodes).some((function(node) {\n            var isElm = node.nodeType === 1;\n            var hasAttr = isElm && node.hasAttribute(\"data-cssvars\");\n            var isStyleWithVars = isStyle(node) && regex.cssVars.test(node.textContent);\n            var isValid = !hasAttr && (isLink(node) || isStyleWithVars);\n            return isValid;\n        }));\n    }\n    function isValidRemoveMutation(mutationNodes) {\n        return Array.apply(null, mutationNodes).some((function(node) {\n            var isElm = node.nodeType === 1;\n            var isOutNode = isElm && node.getAttribute(\"data-cssvars\") === \"out\";\n            var isSrcNode = isElm && node.getAttribute(\"data-cssvars\") === \"src\";\n            var isValid = isSrcNode;\n            if (isSrcNode || isOutNode) {\n                var dataGroup = node.getAttribute(\"data-cssvars-group\");\n                var orphanNode = settings.rootElement.querySelector('[data-cssvars-group=\"'.concat(dataGroup, '\"]'));\n                if (isSrcNode) {\n                    resetCssNodes(settings.rootElement);\n                    variableStore.dom = {};\n                }\n                if (orphanNode) {\n                    orphanNode.parentNode.removeChild(orphanNode);\n                }\n            }\n            return isValid;\n        }));\n    }\n    if (!window.MutationObserver) {\n        return;\n    }\n    if (cssVarsObserver) {\n        cssVarsObserver.disconnect();\n        cssVarsObserver = null;\n    }\n    cssVarsObserver = new MutationObserver((function(mutations) {\n        var hasValidMutation = mutations.some((function(mutation) {\n            var isValid = false;\n            if (mutation.type === \"attributes\") {\n                isValid = isLink(mutation.target);\n            } else if (mutation.type === \"childList\") {\n                isValid = isValidAddMutation(mutation.addedNodes) || isValidRemoveMutation(mutation.removedNodes);\n            }\n            return isValid;\n        }));\n        if (hasValidMutation) {\n            cssVars(settings);\n        }\n    }));\n    cssVarsObserver.observe(document.documentElement, {\n        attributes: true,\n        attributeFilter: [ \"disabled\", \"href\" ],\n        childList: true,\n        subtree: true\n    });\n}\n\nfunction cssVarsDebounced(settings) {\n    var delay = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 100;\n    clearTimeout(debounceTimer);\n    debounceTimer = setTimeout((function() {\n        settings.__benchmark = null;\n        cssVars(settings);\n    }), delay);\n}\n\nfunction fixKeyframes(rootElement) {\n    var animationNameProp = [ \"animation-name\", \"-moz-animation-name\", \"-webkit-animation-name\" ].filter((function(prop) {\n        return getComputedStyle(document.body)[prop];\n    }))[0];\n    if (animationNameProp) {\n        var allNodes = rootElement.getElementsByTagName(\"*\");\n        var keyframeNodes = [];\n        var nameMarker = \"__CSSVARSPONYFILL-KEYFRAMES__\";\n        for (var i = 0, len = allNodes.length; i < len; i++) {\n            var node = allNodes[i];\n            var animationName = getComputedStyle(node)[animationNameProp];\n            if (animationName !== \"none\") {\n                node.style[animationNameProp] += nameMarker;\n                keyframeNodes.push(node);\n            }\n        }\n        void document.body.offsetHeight;\n        for (var _i = 0, _len = keyframeNodes.length; _i < _len; _i++) {\n            var nodeStyle = keyframeNodes[_i].style;\n            nodeStyle[animationNameProp] = nodeStyle[animationNameProp].replace(nameMarker, \"\");\n        }\n    }\n}\n\nfunction fixRelativeCssUrls(cssText, baseUrl) {\n    var cssUrls = cssText.replace(regex.cssComments, \"\").match(regex.cssUrls) || [];\n    cssUrls.forEach((function(cssUrl) {\n        var oldUrl = cssUrl.replace(regex.cssUrls, \"$1\");\n        var newUrl = getFullUrl$1(oldUrl, baseUrl);\n        cssText = cssText.replace(cssUrl, cssUrl.replace(oldUrl, newUrl));\n    }));\n    return cssText;\n}\n\nfunction fixVarNames() {\n    var varObj = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n    var reLeadingHyphens = /^-{2}/;\n    return Object.keys(varObj).reduce((function(obj, value) {\n        var key = reLeadingHyphens.test(value) ? value : \"--\".concat(value.replace(/^-+/, \"\"));\n        obj[key] = varObj[value];\n        return obj;\n    }), {});\n}\n\nfunction getFullUrl$1(url) {\n    var base = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : location.href;\n    var d = document.implementation.createHTMLDocument(\"\");\n    var b = d.createElement(\"base\");\n    var a = d.createElement(\"a\");\n    d.head.appendChild(b);\n    d.body.appendChild(a);\n    b.href = base;\n    a.href = url;\n    return a.href;\n}\n\nfunction getTimeStamp() {\n    return isBrowser && (window.performance || {}).now ? window.performance.now() : (new Date).getTime();\n}\n\nfunction resetCssNodes(rootElement) {\n    var resetNodes = Array.apply(null, rootElement.querySelectorAll('[data-cssvars=\"skip\"],[data-cssvars=\"src\"]'));\n    resetNodes.forEach((function(node) {\n        return node.setAttribute(\"data-cssvars\", \"\");\n    }));\n}\n\nexport default cssVars;\n//# sourceMappingURL=css-vars-ponyfill.esm.js.map\n","import {APP_INITIALIZER, NgModule} from '@angular/core';\r\nimport {CommonModule} from '@angular/common';\r\nimport {ImageEditorComponent} from './image-editor.component';\r\nimport {HistoryPanelComponent} from './panels/history-panel/history-panel.component';\r\nimport {ObjectsPanelComponent} from './panels/objects-panel/objects-panel.component';\r\nimport {ImageEditorModule} from '../image-editor/image-editor.module';\r\nimport {ToolbarControlsModule} from './toolbar-controls/toolbar-controls.module';\r\nimport {EditorControlsService} from './toolbar-controls/editor-controls.service';\r\nimport {FloatingPanelsService} from './toolbar-controls/floating-panels.service';\r\nimport {MatButtonModule} from '@angular/material/button';\r\nimport {MatDialogModule} from '@angular/material/dialog';\r\nimport {MatIconModule, MatIconRegistry} from '@angular/material/icon';\r\nimport {MatRadioModule} from '@angular/material/radio';\r\nimport {MatSliderModule} from '@angular/material/slider';\r\nimport {MatTooltipModule} from '@angular/material/tooltip';\r\nimport {CustomScrollbarModule} from '@common/core/ui/custom-scrollbar/custom-scrollbar.module';\r\nimport {OverlayPanel} from '@common/core/ui/overlay-panel/overlay-panel.service';\r\nimport {OverlayContainer} from '@angular/cdk/overlay';\r\nimport {EditorOverlayContainer} from './panels/editor-overlay-container';\r\nimport {OpenSampleImagePanelComponent} from './panels/open-sample-image-panel/open-sample-image-panel.component';\r\nimport {ReactiveFormsModule} from '@angular/forms';\r\nimport {BackgroundImageDirective} from './background-image.directive';\r\nimport {DragDropModule} from '@angular/cdk/drag-drop';\r\nimport {DomSanitizer} from '@angular/platform-browser';\r\nimport {ExportPanelComponent} from './panels/export-panel/export-panel.component';\r\nimport {Settings} from '@common/core/config/settings.service';\r\nimport {ThemeService} from '@common/core/theme.service';\r\nimport {\r\n    DEFAULT_DARK_COLORS,\r\n    DEFAULT_LIGHT_COLORS,\r\n    DEFAULT_THEMES\r\n} from './default-themes';\r\nimport {CssTheme} from '@common/core/types/models/CssTheme';\r\nimport {UploadsModule} from '@common/uploads/uploads.module';\r\nimport cssVars from 'css-vars-ponyfill';\nimport { ImageLoadingPanelComponent } from './panels/image-loading-panel/image-loading-panel.component';\r\n\r\nexport function init_icons(config: Settings, icons: MatIconRegistry, sanitizer: DomSanitizer, themes: ThemeService) {\r\n    return () => {\r\n        // init icons\r\n        const url = config.getAssetUrl('icons/merged.svg', true);\r\n        icons.addSvgIconSet(\r\n            sanitizer.bypassSecurityTrustResourceUrl(url)\r\n        );\r\n        // init themes\r\n        const customThemes = config.get('pixie.ui.themes') as CssTheme[],\r\n            mergedThemes = {...DEFAULT_THEMES};\r\n        if (customThemes && customThemes.length) {\r\n            customThemes.forEach(theme => {\r\n                const defaultColors = theme.is_dark ? DEFAULT_DARK_COLORS : DEFAULT_LIGHT_COLORS,\r\n                    mergedTheme = {...theme, colors: {...defaultColors, ...theme.colors}};\r\n                mergedThemes[mergedTheme.name] = mergedTheme;\r\n            });\r\n        }\r\n\r\n        const rootEl = document.documentElement.querySelector('pixie-editor') as HTMLElement;\r\n\r\n        themes.setRootEl(rootEl);\r\n        themes.registerThemes(mergedThemes);\r\n\r\n        const isNativeSupport = typeof window !== 'undefined' &&\r\n            window['CSS'] &&\r\n            window['CSS'].supports &&\r\n            window['CSS'].supports('(--a: 0)');\r\n        if ( ! isNativeSupport) {\r\n            cssVars({variables: themes.selectedTheme$.value.colors});\r\n        }\r\n        return new Promise(resolve => resolve());\r\n    };\r\n}\r\n\r\n@NgModule({\r\n    imports: [\r\n        CommonModule,\r\n        ReactiveFormsModule,\r\n        ImageEditorModule,\r\n        ToolbarControlsModule,\r\n        CustomScrollbarModule,\r\n\r\n        // material\r\n        MatSliderModule,\r\n        MatRadioModule,\r\n        MatButtonModule,\r\n        MatIconModule,\r\n        DragDropModule,\r\n        MatTooltipModule,\r\n        MatDialogModule,\r\n        MatRadioModule,\r\n        UploadsModule,\r\n    ],\r\n    declarations: [\r\n        ImageEditorComponent,\r\n        HistoryPanelComponent,\r\n        ObjectsPanelComponent,\r\n        OpenSampleImagePanelComponent,\r\n        BackgroundImageDirective,\r\n        ExportPanelComponent,\r\n        ImageLoadingPanelComponent,\r\n    ],\r\n    exports: [\r\n        ImageEditorComponent,\r\n    ],\r\n    providers: [\r\n        {\r\n            provide: APP_INITIALIZER,\r\n            useFactory: init_icons,\r\n            deps: [Settings, MatIconRegistry, DomSanitizer, ThemeService],\r\n            multi: true,\r\n        },\r\n        EditorControlsService,\r\n        FloatingPanelsService,\r\n        OverlayPanel,\r\n        {provide: OverlayContainer, useClass: EditorOverlayContainer},\r\n    ],\r\n})\r\nexport class ImageEditorUIModule {}\r\n","export const ignoredErrors = [\r\n    'Uncaught (in promise): [object Object]',\r\n    'Uncaught (in promise): [object Undefined]',\r\n    '[object Object]',\r\n    '{\"isTrusted\"\\n true}',\r\n    'Uncaught (in promise): ChunkLoadError: Loading chunk',\r\n\r\n    // NON-INFORMATIVE HTTP ERRORS (404, 403 etc)\r\n    'Http failure response for',\r\n    'Http failure during parsing for',\r\n\r\n    // TEMP SENTRY ISSUE (THROWN WHEN SERVER 500 ERROR OCCURS)\r\n    'Non-Error exception captured with keys: messages, originalError, status, type…',\r\n\r\n    // TINYMCE\r\n    \"Uncaught (in promise): TypeError: Cannot read property 'setAttribute' of undefined\",\r\n    \"Uncaught (in promise): TypeError: Cannot read property 'getRng' of undefined\",\r\n\r\n    // TEMP html2canvas\r\n    \"Cannot assign to read only property 'className' of object '[object SVGSVGElement]'\",\r\n\r\n    // TEMP ANIMATIONS\r\n    'The animation trigger \"transform\" has failed to build due to the following errors',\r\n    \"NotSupportedError: Failed to execute 'animate' on 'Element': Partial keyframes are not supported.\",\r\n    \"Cannot call method 'split' of undefined\",\r\n    \"Cannot call method 'trim' of undefined\",\r\n    'undefined is not a function',\r\n\r\n    // TEMP \"CLOSEST\" DOM POLYFILL\r\n    \"has no method 'closest'\",\r\n    \"Object doesn't support property or method 'closest'\",\r\n\r\n    // NOT SUPPORTED BROWSERS\r\n    \"Object doesn't support property or method 'setPrototypeOf'\",\r\n    'requestAnimationFrame is not defined',\r\n    \"Object [object DOMWindow] has no method 'cancelAnimationFrame'\",\r\n    \"'block' member of ScrollIntoViewOptions 'center' is not a valid value for enumeration ScrollLogicalPosition.\",\r\n\r\n    // PLYR\r\n    'Setting the playback rate is not enabled for this video.',\r\n];\r\n","import {ErrorHandler} from '@angular/core';\r\nimport * as Raven from 'raven-js';\r\nimport {Settings} from '../config/settings.service';\r\nimport {ignoredErrors} from './ignored-errors';\r\nimport {RavenOptions} from 'raven-js';\r\n\r\nexport function noBackendErrorHandlerFactory (settings: Settings) {\r\n    return new NoBackendErrorHandler(settings);\r\n}\r\n\r\nexport class NoBackendErrorHandler extends ErrorHandler {\r\n\r\n    /**\r\n     * Whether sentry error logger is already installed.\r\n     */\r\n    protected installed = false;\r\n\r\n    constructor(protected settings: Settings) {\r\n        super();\r\n    }\r\n\r\n    public handleError(err: any, options?: RavenOptions): void {\r\n        if ( ! err) {\r\n            return;\r\n        }\r\n\r\n        super.handleError(err);\r\n\r\n        // sentry did not install properly\r\n        if ( ! this.installSentry()) {\r\n            return;\r\n        }\r\n\r\n        Raven.captureException(err.originalError || err, options);\r\n    }\r\n\r\n    /**\r\n     * Install sentry error logger.\r\n     */\r\n    protected installSentry(): boolean {\r\n        if (this.installed) return true;\r\n\r\n        // no sentry public key is set\r\n        if ( ! this.settings.has('logging.sentry_public')) return false;\r\n\r\n        // install\r\n        Raven.config(this.settings.get('logging.sentry_public'), {\r\n            release: this.settings.get('version'),\r\n            ignoreErrors: ignoredErrors,\r\n        }).install();\r\n\r\n        return this.installed = true;\r\n    }\r\n}\r\n","import {BrowserModule} from '@angular/platform-browser';\nimport {ApplicationRef, ErrorHandler, Injector, NgModule} from '@angular/core';\nimport {AppComponent} from './app.component';\nimport {BrowserAnimationsModule} from '@angular/platform-browser/animations';\nimport {Settings} from 'common/core/config/settings.service';\nimport {MERGED_CONFIG} from './image-editor/default-settings';\nimport {ImageEditorUIModule} from './image-editor-ui/image-editor-ui.module';\nimport {noBackendErrorHandlerFactory} from 'common/core/errors/no-backend-error-handler';\n\n@NgModule({\n    declarations: [\n        AppComponent\n    ],\n    entryComponents: [\n        AppComponent\n    ],\n    imports: [\n        BrowserModule,\n        ImageEditorUIModule,\n        BrowserAnimationsModule,\n    ],\n    providers: [\n        {\n            provide: ErrorHandler,\n            useFactory: noBackendErrorHandlerFactory,\n            deps: [Settings],\n        },\n    ],\n})\nexport class AppModule {\n    constructor(private injector: Injector) {}\n\n    ngDoBootstrap(app: ApplicationRef) {\n        const selector = this.injector.get(MERGED_CONFIG).selector;\n        app.bootstrap(AppComponent, selector);\n    }\n}\n","import {enableProdMode} from '@angular/core';\nimport {environment} from './environments/environment';\nimport {AppModule} from './app/app.module';\nimport {platformBrowserDynamic} from '@angular/platform-browser-dynamic';\nimport 'hammerjs';\nimport {Pixie} from './app/image-editor/pixie';\n\nif (environment.production) {\n    enableProdMode();\n}\n\nfunction noopBoot() {\n    platformBrowserDynamic().bootstrapModule(AppModule)\n        .catch(err => console.log(err));\n}\n\nwindow['Pixie'] = Pixie;\n","import {NgModuleRef, NgZone} from '@angular/core';\r\nimport {MERGED_CONFIG, PIXIE_VERSION, PixieConfig} from './default-settings';\r\nimport {AppModule} from '../app.module';\r\nimport {ImageEditorService} from './image-editor.service';\r\nimport {platformBrowserDynamic} from '@angular/platform-browser-dynamic';\r\nimport {CanvasService} from './canvas/canvas.service';\r\nimport {Settings} from '@common/core/config/settings.service';\r\nimport {take} from 'rxjs/operators';\r\n\r\nexport class Pixie {\r\n    public version = PIXIE_VERSION;\r\n    private appModule: NgModuleRef<AppModule>;\r\n    public proxySupported = typeof Proxy === 'function';\r\n    constructor(config: PixieConfig) {\r\n        this.initPixie(config);\r\n        if (this.proxySupported) {\r\n            return new Proxy(this, {\r\n                get(target, propKey) {\r\n                    const injector = target.appModule.injector;\r\n                    const context = !target.hasOwnProperty(propKey) && propKey !== 'destroyEditor' && injector ?\r\n                        injector.get(ImageEditorService) :\r\n                        target;\r\n                    const propValue = context[propKey];\r\n                    if (typeof propValue !== 'function') {\r\n                        return propValue;\r\n                    } else {\r\n                        return function() {\r\n                            return injector.get(NgZone).run(propValue, context, arguments as any);\r\n                        };\r\n                    }\r\n                }\r\n            });\r\n        }\r\n    }\r\n\r\n    private initPixie(config: PixieConfig) {\r\n        const merged = ImageEditorService.mergeConfig(config);\r\n        platformBrowserDynamic([{provide: MERGED_CONFIG, useValue: merged}])\r\n            .bootstrapModule(AppModule)\r\n            .then(this.onAngularReady.bind(this))\r\n            .catch(err => console.log(err));\r\n    }\r\n\r\n    private onAngularReady(appModule: NgModuleRef<AppModule>) {\r\n        if (!this.proxySupported) {\r\n            window['pixie'] = appModule.injector.get(ImageEditorService);\r\n        } else {\r\n            this.appModule = appModule;\r\n        }\r\n        appModule.injector.get(CanvasService).state.loaded\r\n            .pipe(take(1))\r\n            .subscribe(() => {\r\n                const settings = appModule.injector.get(Settings);\r\n                const onLoad = settings.get('pixie.onLoad') as Function;\r\n                if (onLoad) onLoad();\r\n            });\r\n    }\r\n\r\n    public destroyEditor() {\r\n        this.appModule.destroy();\r\n        this.appModule = null;\r\n    }\r\n}\r\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.observable = (function () { return typeof Symbol === 'function' && Symbol.observable || '@@observable'; })();\n//# sourceMappingURL=observable.js.map"]}